APPARATUS, SYSTEM AND METHOD OF POWER MANAGEMENT FOR

WIRELESS COMMUNICATION

CROSS REFERENCE

[001] This Application claims the benefit of and priority from US Provisional Patent Application No. 62/444,914 entitled "APPARATUS, SYSTEM AND METHOD OF POWER MANAGEMENT IN A WIRELESS NETWORK", filed January 11, 2017, the entire disclosure of which is incorporated herein by reference.

TECHNICAL FIELD

[002] Embodiments described herein generally relate to power management for wireless communication.

BACKGROUND

[003] Wireless communication stations (STAs) in a wireless communication network may utilize a power management mechanism.

[004] The STAs may utilize a power management mechanism, for example, according to an IEEE 802..11-2016 Specification ("IEEE 802.11-2016, IEEE Standard for Information technology— Telecommunications and information exchange between systems Local and metropolitan area networks— Specific requirements Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications ", December 7, 2016).

BRIEF DESCRIPTION OF THE DRAWINGS

[005] For simplicity and clarity of illustration, elements shown in the figures have not necessarily been drawn to scale. For example, the dimensions of some of the elements may be exaggerated relative to other elements for clarity of presentation. Furthermore, reference numerals may be repeated among the figures to indicate corresponding or analogous elements. The figures are listed below.

[006] Fig. 1 is a schematic block diagram illustration of a system, in accordance with some demonstrative embodiments.

[007] Fig. 2 is a schematic illustration of a scenario of communications between stations to illustrate a technical problem, which may be solved, in accordance with some demonstrative embodiments.

[008] Fig. 3 is a schematic illustration of communications between stations, in accordance with some demonstrative embodiments.

[009] Fig. 4 is a schematic illustration of a structure of an Awake Window (AW) element, in accordance with some demonstrative embodiments.

[0010] Fig. 5 is a schematic flow-chart illustration of a method of transmitting a beacon frame including an awake window element, in accordance with some demonstrative embodiments.

[0011] Fig. 6 is a schematic flow-chart illustration of a method of power management, in accordance with some demonstrative embodiments.

[0012] Fig. 7 is a schematic illustration of a product of manufacture, in accordance with some demonstrative embodiments.

DETAILED DESCRIPTION

[0013] In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of some embodiments. However, it will be understood by persons of ordinary skill in the art that some embodiments may be practiced without these specific details. In other instances, well-known methods, procedures, components, units and/or circuits have not been described in detail so as not to obscure the discussion.

[0014] Discussions herein utilizing terms such as, for example, "processing", "computing", "calculating", "determining", "establishing", "analyzing", "checking", or the like, may refer to operation(s) and/or process(es) of a computer, a computing platform, a computing system, or other electronic computing device, that manipulate and/or transform data represented as physical (e.g., electronic) quantities within the computer's registers and/or memories into other data similarly represented as physical quantities within the computer's registers and/or memories or other information storage medium that may store instructions to perform operations and/or processes.

[0015] The terms "plurality" and "a plurality", as used herein, include, for example, "multiple" or "two or more". For example, "a plurality of items" includes two or more items.

[0016] References to "one embodiment", "an embodiment", "demonstrative embodiment", "various embodiments" etc., indicate that the embodiment(s) so described may include a particular feature, structure, or characteristic, but not every embodiment necessarily includes the particular feature, structure, or characteristic. Further, repeated use of the phrase "in one embodiment" does not necessarily refer to the same embodiment, although it may.

[0017] As used herein, unless otherwise specified the use of the ordinal adjectives "first", "second", "third" etc., to describe a common object, merely indicate that different instances of like objects are being referred to, and are not intended to imply that the objects so described must be in a given sequence, either temporally, spatially, in ranking, or in any other manner.

[0018] Some embodiments may be used in conjunction with various devices and systems, for example, a User Equipment (UE), a Mobile Device (MD), a wireless station (STA), a Personal Computer (PC), a desktop computer, a mobile computer, a laptop computer, a notebook computer, a tablet computer, a server computer, a handheld computer, a handheld device, a wearable device, a sensor device, an Internet of Things (IoT) device, a Personal Digital Assistant (PDA) device, a handheld PDA device, an on-board device, an off-board device, a hybrid device, a vehicular device, a non-vehicular device, a mobile or portable device, a consumer device, a non-mobile or non-portable device, a wireless communication station, a wireless communication device, a wireless Access Point (AP), a wired or wireless router, a wired or wireless modem, a video device, an audio device, an audio-video (A/V) device, a wired or wireless network, a wireless area network, a Wireless Video Area Network (WVAN), a Local Area Network (LAN), a Wireless LAN (WLAN), a Personal Area Network (PAN), a Wireless PAN (WPAN), and the like.

[0019] Some embodiments may be used in conjunction with devices and/or networks operating in accordance with existing IEEE 802.11 standards (including IEEE 802.11-2016 (IEEE 802.11-2016, IEEE Standard for Information technology— Telecommunications and information exchange between systems Local and metropolitan area networks— Specific requirements Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications, December 7, 2016); and/or IEEE 802. Hay (P802.11ay Standard for Information Technology— Telecommunications and Information Exchange Between Systems Local and Metropolitan Area Networks— Specific Requirements Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications— Amendment: Enhanced Throughput for Operation in License -Exempt Bands Above 45 GHz)) and/or future versions and/or derivatives thereof, devices and/or networks operating in accordance with existing WiFi Alliance (WFA) Peer-to-Peer (P2P) specifications (including WiFi P2P technical specification, version 1.5, August 4, 2015) and/or future versions and/or derivatives thereof, devices and/or networks operating in accordance with existing Wireless-Gigabit- Alliance (WGA) specifications (including Wireless Gigabit Alliance, Inc WiGig MAC and PHY Specification Version 1.1, April 2011, Final specification) and/or future versions and/or derivatives thereof, devices and/or networks operating in accordance with existing cellular specifications and/or protocols, e.g., 3rd Generation Partnership Project (3GPP), 3GPP Long Term Evolution (LTE) and/or future versions and/or derivatives thereof, units and/or devices which are part of the above networks, and the like.

[0020] Some embodiments may be used in conjunction with one way and/or two-way radio communication systems, cellular radio-telephone communication systems, a mobile phone, a cellular telephone, a wireless telephone, a Personal Communication Systems (PCS) device, a PDA device which incorporates a wireless communication device, a mobile or portable Global Positioning System (GPS) device, a device which incorporates a GPS receiver or transceiver or chip, a device which incorporates an RFID element or chip, a Multiple Input Multiple Output (MIMO) transceiver or device, a Single Input Multiple Output (SIMO) transceiver or device, a Multiple Input Single Output (MISO) transceiver or device, a device having one or more internal antennas and/or external antennas, Digital Video Broadcast (DVB) devices or systems, multi-standard radio devices or systems, a wired or wireless handheld device, e.g., a Smartphone, a Wireless Application Protocol (WAP) device, or the like.

[0021] Some embodiments may be used in conjunction with one or more types of wireless communication signals and/or systems, for example, Radio Frequency (RF), Infra Red (IR), Frequency-Division Multiplexing (FDM), Orthogonal FDM (OFDM), Orthogonal Frequency-Division Multiple Access (OFDMA), FDM Time-Division Multiplexing (TDM), Time-Division Multiple Access (TDM A), Multi-User MIMO (MU-MIMO), Spatial Division Multiple Access (SDMA), Extended TDMA (E-TDMA), General Packet Radio Service (GPRS), extended GPRS, Code-Division Multiple Access (CDMA), Wideband CDMA (WCDMA), CDMA 2000, single-carrier CDMA, multi-carrier CDMA, Multi-Carrier Modulation (MDM), Discrete Multi-Tone (DMT), Bluetooth®, Global Positioning System (GPS), Wi-Fi, Wi-Max, ZigBee™, Ultra-Wideband (UWB), Global System for Mobile communication (GSM), 2G, 2.5G, 3G, 3.5G, 4G, Fifth Generation (5G), or Sixth Generation (6G) mobile networks, 3GPP, Long Term Evolution (LTE), LTE advanced, Enhanced Data rates for GSM Evolution (EDGE), or the like. Other embodiments may be used in various other devices, systems and/or networks.

[0022] The term "wireless device", as used herein, includes, for example, a device capable of wireless communication, a communication device capable of wireless communication, a communication station capable of wireless communication, a portable or non-portable device capable of wireless communication, or the like. In some demonstrative embodiments, a wireless device may be or may include a peripheral that is integrated with a computer, or a peripheral that is attached to a computer. In some demonstrative embodiments, the term "wireless device" may optionally include a wireless service.

[0023] The term "communicating" as used herein with respect to a communication signal includes transmitting the communication signal and/or receiving the communication signal. For example, a communication unit, which is capable of communicating a communication signal, may include a transmitter to transmit the communication signal to at least one other communication unit, and/or a communication receiver to receive the communication signal from at least one other communication unit. The verb communicating may be used to refer to the action of transmitting or the action of receiving. In one example, the phrase "communicating a signal" may refer to the action of transmitting the signal by a first device, and may not necessarily include the action of receiving the signal by a second device. In another example, the phrase "communicating a signal" may refer to the action of receiving the signal by a first device, and may not necessarily include the action of transmitting the signal by a second device. The communication signal may be transmitted and/or received, for example, in the form of Radio Frequency (RF) communication signals, and/or any other type of signal.

[0024] As used herein, the term "circuitry" may refer to, be part of, or include, an Application Specific Integrated Circuit (ASIC), an integrated circuit, an electronic circuit, a processor (shared, or group ,dedicated, or group), and/or memory (shared, dedicated), that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable hardware components that provide the described functionality. In some embodiments, the circuitry may be implemented in, or functions associated with the circuitry may be implemented by, one or more software or firmware modules. In some embodiments, circuitry may include logic, at least partially operable in hardware.

[0025] The term "logic" may refer, for example, to computing logic embedded in circuitry of a computing apparatus and/or computing logic stored in a memory of a computing apparatus. For example, the logic may be accessible by a processor of the computing apparatus to execute the computing logic to perform computing functions and/or operations. In one example, logic may be embedded in various types of memory and/or firmware, e.g., silicon blocks of various chips and/or processors. Logic may be included in, and/or implemented as part of, various circuitry, e.g. radio circuitry, receiver circuitry, control circuitry, transmitter circuitry, transceiver circuitry, processor circuitry, and/or the like. In one example, logic may be embedded in volatile memory and/or non-volatile memory, including random access memory, read only memory, programmable memory, magnetic memory, flash memory, persistent memory, and the like. Logic may be executed by one or more processors using memory, e.g., registers, stuck, buffers, and/or the like, coupled to the one or more processors, e.g., as necessary to execute the logic.

[0026] Some demonstrative embodiments may be used in conjunction with a WLAN, e.g., a WiFi network. Other embodiments may be used in conjunction with any other suitable wireless communication network, for example, a wireless area network, a "piconet", a WPAN, a WVAN and the like. [0027] Some demonstrative embodiments may be used in conjunction with a wireless communication network communicating over a frequency band above 45 Gigahertz (GHz), e.g., 60GHz. However, other embodiments may be implemented utilizing any other suitable wireless communication frequency bands, for example, an Extremely High Frequency (EHF) band (the millimeter wave (mmWave) frequency band), e.g., a frequency band within the frequency band of between 20Ghz and 300GHz, a frequency band above 45 GHz, a frequency band below 20GHz, e.g., a Sub 1 GHz (SIG) band, a 2.4GHz band, a 5GHz band, a WLAN frequency band, a WPAN frequency band, a frequency band according to the WGA specification, and the like.

[0028] The term "antenna", as used herein, may include any suitable configuration, structure and/or arrangement of one or more antenna elements, components, units, assemblies and/or arrays. In some embodiments, the antenna may implement transmit and receive functionalities using separate transmit and receive antenna elements. In some embodiments, the antenna may implement transmit and receive functionalities using common and/or integrated transmit/receive elements. The antenna may include, for example, a phased array antenna, a single element antenna, a set of switched beam antennas, and/or the like.

[0029] The phrases "directional multi-gigabit (DMG)" and "directional band" (DBand), as used herein, may relate to a frequency band wherein the Channel starting frequency is above 45 GHz. In one example, DMG communications may involve one or more directional links to communicate at a rate of multiple gigabits per second, for example, at least 1 Gigabit per second, e.g., at least 7 Gigabit per second, at least 30 Gigabit per second, or any other rate.

[0030] Some demonstrative embodiments may be implemented by a DMG STA (also referred to as a "mmWave STA (mSTA)"), which may include for example, a STA having a radio transmitter, which is capable of operating on a channel that is within the DMG band. The DMG STA may perform other additional or alternative functionality. Other embodiments may be implemented by any other apparatus, device and/or station.

[0031] Reference is made to Fig. 1, which schematically illustrates a system 100, in accordance with some demonstrative embodiments.

[0032] As shown in Fig. 1, in some demonstrative embodiments, system 100 may include one or more wireless communication devices. For example, system 100 may include a wireless communication device 102, a wireless communication device 140, and/or one more other devices. [0033] In some demonstrative embodiments, devices 102 and/or 140 may include a mobile device or a non- mobile, e.g., a static, device.

[0034] For example, devices 102 and/or 140 may include, for example, a UE, an MD, a STA, an AP, a PC, a desktop computer, a mobile computer, a laptop computer, an Ultrabook™ computer, a notebook computer, a tablet computer, a server computer, a handheld computer, an Internet of Things (IoT) device, a sensor device, a handheld device, a wearable device, a PDA device, a handheld PDA device, an on-board device, an off-board device, a hybrid device (e.g., combining cellular phone functionalities with PDA device functionalities), a consumer device, a vehicular device, a non- vehicular device, a mobile or portable device, a non-mobile or non-portable device, a mobile phone, a cellular telephone, a PCS device, a PDA device which incorporates a wireless communication device, a mobile or portable GPS device, a DVB device, a relatively small computing device, a non-desktop computer, a "Carry Small Live Large" (CSLL) device, an Ultra Mobile Device (UMD), an Ultra Mobile PC (UMPC), a Mobile Internet Device (MID), an "Origami" device or computing device, a device that supports Dynamically Composable Computing (DCC), a context-aware device, a video device, an audio device, an A/V device, a Set- Top-Box (STB), a Blu-ray disc (BD) player, a BD recorder, a Digital Video Disc (DVD) player, a High Definition (HD) DVD player, a DVD recorder, a HD DVD recorder, a Personal Video Recorder (PVR), a broadcast HD receiver, a video source, an audio source, a video sink, an audio sink, a stereo tuner, a broadcast radio receiver, a flat panel display, a Personal Media Player (PMP), a digital video camera (DVC), a digital audio player, a speaker, an audio receiver, an audio amplifier, a gaming device, a data source, a data sink, a Digital Still camera (DSC), a media player, a Smartphone, a television, a music player, or the like.

[0035] In some demonstrative embodiments, device 102 may include, for example, one or more of a processor 191, an input unit 192, an output unit 193, a memory unit 194, and/or a storage unit 195; and/or device 140 may include, for example, one or more of a processor

181, an input unit 182, an output unit 183, a memory unit 184, and/or a storage unit 185.

Devices 102 and/or 140 may optionally include other suitable hardware components and/or software components. In some demonstrative embodiments, some or all of the components of one or more of devices 102 and/or 140 may be enclosed in a common housing or packaging, and may be interconnected or operably associated using one or more wired or wireless links.

In other embodiments, components of one or more of devices 102 and/or 140 may be distributed among multiple or separate devices. [0036] In some demonstrative embodiments, processor 191 and/or processor 181 may include, for example, a Central Processing Unit (CPU), a Digital Signal Processor (DSP), one or more processor cores, a single-core processor, a dual-core processor, a multiple-core processor, a microprocessor, a host processor, a controller, a plurality of processors or controllers, a chip, a microchip, one or more circuits, circuitry, a logic unit, an Integrated Circuit (IC), an Application-Specific IC (ASIC), or any other suitable multi-purpose or specific processor or controller. Processor 191 may execute instructions, for example, of an Operating System (OS) of device 102 and/or of one or more suitable applications. Processor 181 may execute instructions, for example, of an Operating System (OS) of device 140 and/or of one or more suitable applications.

[0037] In some demonstrative embodiments, input unit 192 and/or input unit 182 may include, for example, a keyboard, a keypad, a mouse, a touch-screen, a touch-pad, a trackball, a stylus, a microphone, or other suitable pointing device or input device. Output unit 193 and/or output unit 183 may include, for example, a monitor, a screen, a touch-screen, a flat panel display, a Light Emitting Diode (LED) display unit, a Liquid Crystal Display (LCD) display unit, a plasma display unit, one or more audio speakers or earphones, or other suitable output devices.

[0038] In some demonstrative embodiments, memory unit 194 and/or memory unit 184 includes, for example, a Random Access Memory (RAM), a Read Only Memory (ROM), a Dynamic RAM (DRAM), a Synchronous DRAM (SD-RAM), a flash memory, a volatile memory, a non- volatile memory, a cache memory, a buffer, a short term memory unit, a long term memory unit, or other suitable memory units. Storage unit 195 and/or storage unit 185 may include, for example, a hard disk drive, a floppy disk drive, a Compact Disk (CD) drive, a CD-ROM drive, a DVD drive, or other suitable removable or non-removable storage units. Memory unit 194 and/or storage unit 195, for example, may store data processed by device 102. Memory unit 184 and/or storage unit 185, for example, may store data processed by device 140.

[0039] In some demonstrative embodiments, wireless communication devices 102 and/or 140 may be capable of communicating content, data, information and/or signals via a wireless medium (WM) 103. In some demonstrative embodiments, wireless medium 103 may include, for example, a radio channel, a cellular channel, an RF channel, a WiFi channel, an IR channel, a Bluetooth (BT) channel, a Global Navigation Satellite System (GNSS) Channel, and the like. [0040] In some demonstrative embodiments, WM 103 may include one or more directional bands and/or channels. For example, WM 103 may include one or more millimeter-wave (mmWave) wireless communication bands and/or channels.

[0041] In some demonstrative embodiments, WM 103 may include one or more DMG channels. In other embodiments WM 103 may include any other directional channels.

[0042] In other embodiments, WM 103 may include any other type of channel over any other frequency band.

[0043] In some demonstrative embodiments, device 102 and/or device 140 may include one or more radios including circuitry and/or logic to perform wireless communication between devices 102, 140 and/or one or more other wireless communication devices. For example, device 102 may include at least one radio 114, and/or device 140 may include at least one radio 144.

[0044] In some demonstrative embodiments, radio 114 and/or radio 144 may include one or more wireless receivers (Rx) including circuitry and/or logic to receive wireless communication signals, RF signals, frames, blocks, transmission streams, packets, messages, data items, and/or data. For example, radio 114 may include at least one receiver 116, and/or radio 144 may include at least one receiver 146.

[0045] In some demonstrative embodiments, radio 114 and/or radio 144 may include one or more wireless transmitters (Tx) including circuitry and/or logic to transmit wireless communication signals, RF signals, frames, blocks, transmission streams, packets, messages, data items, and/or data. For example, radio 114 may include at least one transmitter 118, and/or radio 144 may include at least one transmitter 148.

[0046] In some demonstrative embodiments, radio 114 and/or radio 144, transmitters 118 and/or 148, and/or receivers 116 and/or 146 may include circuitry; logic; Radio Frequency (RF) elements, circuitry and/or logic; baseband elements, circuitry and/or logic; modulation elements, circuitry and/or logic; demodulation elements, circuitry and/or logic; amplifiers; analog to digital and/or digital to analog converters; filters; and/or the like. For example, radio 114 and/or radio 144 may include or may be implemented as part of a wireless Network Interface Card (NIC), and the like.

[0047] In some demonstrative embodiments, radios 114 and/or 144 may be configured to communicate over a directional band, for example, an mmWave band, and/or any other band, for example, a 2.4GHz band, a 5GHz band, a S1G band, and/or any other band. [0048] In some demonstrative embodiments, radios 114 and/or 144 may include, or may be associated with one or more, e.g., a plurality of, directional antennas.

[0049] In some demonstrative embodiments, device 102 may include one or more, e.g., a plurality of, directional antennas 107, and/or device 140 may include on or more, e.g., a plurality of, directional antennas 147.

[0050] Antennas 107 and/or 147 may include any type of antennas suitable for transmitting and/or receiving wireless communication signals, blocks, frames, transmission streams, packets, messages and/or data. For example, antennas 107 and/or 147 may include any suitable configuration, structure and/or arrangement of one or more antenna elements, components, units, assemblies and/or arrays. Antennas 107 and/or 147 may include, for example, antennas suitable for directional communication, e.g., using beamforming techniques. For example, antennas 107 and/or 147 may include a phased array antenna, a multiple element antenna, a set of switched beam antennas, and/or the like. In some embodiments, antennas 107 and/or 147 may implement transmit and receive functionalities using separate transmit and receive antenna elements. In some embodiments, antennas 107 and/or 147 may implement transmit and receive functionalities using common and/or integrated transmit/receive elements.

[0051] In some demonstrative embodiments, antennas 107 and/or 147 may include directional antennas, which may be steered to one or more beam directions. For example, antennas 107 may be steered to one or more beam directions 135, and/or antennas 147 may be steered to one or more beam directions 145.

[0052] In some demonstrative embodiments, antennas 107 and/or 147 may include and/or may be implemented as part of a single Phased Antenna Array (PA A).

[0053] In some demonstrative embodiments, antennas 107 and/or 147 may be implemented as part of a plurality of PAAs, for example, as a plurality of physically independent PAAs.

[0054] In some demonstrative embodiments, a PAA may include, for example, a rectangular geometry, e.g., including an integer number, denoted M, of rows, and an integer number, denoted N, of columns. In other embodiments, any other types of antennas and/or antenna arrays may be used.

[0055] In some demonstrative embodiments, antennas 107 and/or antennas 147 may be connected to, and/or associated with, one or more Radio Frequency (RF) chains. [0056] In some demonstrative embodiments, device 102 may include a controller 124, and/or device 140 may include a controller 154. Controller 124 may be configured to perform and/or to trigger, cause, instruct and/or control device 102 to perform, one or more communications, to generate and/or communicate one or more messages and/or transmissions, and/or to perform one or more functionalities, operations and/or procedures between devices 102, 140 and/or one or more other devices; and/or controller 154 may be configured to perform, and/or to trigger, cause, instruct and/or control device 140 to perform, one or more communications, to generate and/or communicate one or more messages and/or transmissions, and/or to perform one or more functionalities, operations and/or procedures between devices 102, 140 and/or one or more other devices, e.g., as described below.

[0057] In some demonstrative embodiments, controllers 124 and/or 154 may include, or may be implemented, partially or entirely, by circuitry and/or logic, e.g., one or more processors including circuitry and/or logic, memory circuitry and/or logic, Media-Access Control (MAC) circuitry and/or logic, Physical Layer (PHY) circuitry and/or logic, baseband (BB) circuitry and/or logic, a BB processor, a BB memory, Application Processor (AP) circuitry and/or logic, an AP processor, an AP memory, and/or any other circuitry and/or logic, configured to perform the functionality of controllers 124 and/or 154, respectively. Additionally or alternatively, one or more functionalities of controllers 124 and/or 154 may be implemented by logic, which may be executed by a machine and/or one or more processors, e.g., as described below.

[0058] In one example, controller 124 may include circuitry and/or logic, for example, one or more processors including circuitry and/or logic, to cause, trigger and/or control a wireless device, e.g., device 102, and/or a wireless station, e.g., a wireless STA implemented by device 102, to perform one or more operations, communications and/or functionalities, e.g., as described herein.

[0059] In one example, controller 154 may include circuitry and/or logic, for example, one or more processors including circuitry and/or logic, to cause, trigger and/or control a wireless device, e.g., device 140, and/or a wireless station, e.g., a wireless STA implemented by device 140, to perform one or more operations, communications and/or functionalities, e.g., as described herein. [0060] In some demonstrative embodiments, device 102 may include a message processor 128 configured to generate, process and/or access one or messages communicated by device 102.

[0061] In one example, message processor 128 may be configured to generate one or more messages to be transmitted by device 102, and/or message processor 128 may be configured to access and/or to process one or more messages received by device 102, e.g., as described below.

[0062] In some demonstrative embodiments, device 140 may include a message processor 158 configured to generate, process and/or access one or messages communicated by device 140.

[0063] In one example, message processor 158 may be configured to generate one or more messages to be transmitted by device 140, and/or message processor 158 may be configured to access and/or to process one or more messages received by device 140, e.g., as described below.

[0064] In some demonstrative embodiments, message processors 128 and/or 158 may include, or may be implemented, partially or entirely, by circuitry and/or logic, e.g., one or more processors including circuitry and/or logic, memory circuitry and/or logic, Media- Access Control (MAC) circuitry and/or logic, Physical Layer (PHY) circuitry and/or logic, BB circuitry and/or logic, a BB processor, a BB memory, AP circuitry and/or logic, an AP processor, an AP memory, and/or any other circuitry and/or logic, configured to perform the functionality of message processors 128 and/or 158, respectively. Additionally or alternatively, one or more functionalities of message processors 128 and/or 158 may be implemented by logic, which may be executed by a machine and/or one or more processors, e.g., as described below.

[0065] In some demonstrative embodiments, at least part of the functionality of message processor 128 may be implemented as part of radio 114, and/or at least part of the functionality of message processor 158 may be implemented as part of radio 144.

[0066] In some demonstrative embodiments, at least part of the functionality of message processor 128 may be implemented as part of controller 124, and/or at least part of the functionality of message processor 158 may be implemented as part of controller 154. [0067] In other embodiments, the functionality of message processor 128 may be implemented as part of any other element of device 102, and/or the functionality of message processor 158 may be implemented as part of any other element of device 140.

[0068] In some demonstrative embodiments, at least part of the functionality of controller 124 and/or message processor 128 may be implemented by an integrated circuit, for example, a chip, e.g., a System on Chip (SoC). In one example, the chip or SoC may be configured to perform one or more functionalities of radio 114. For example, the chip or SoC may include one or more elements of controller 124, one or more elements of message processor 128, and/or one or more elements of radio 114. In one example, controller 124, message processor 128, and radio 114 may be implemented as part of the chip or SoC.

[0069] In other embodiments, controller 124, message processor 128 and/or radio 114 may be implemented by one or more additional or alternative elements of device 102.

[0070] In some demonstrative embodiments, at least part of the functionality of controller 154 and/or message processor 158 may be implemented by an integrated circuit, for example, a chip, e.g., a System on Chip (SoC). In one example, the chip or SoC may be configured to perform one or more functionalities of radio 144. For example, the chip or SoC may include one or more elements of controller 154, one or more elements of message processor 158, and/or one or more elements of radio 144. In one example, controller 154, message processor 158, and radio 144 may be implemented as part of the chip or SoC.

[0071] In other embodiments, controller 154, message processor 158 and/or radio 144 may be implemented by one or more additional or alternative elements of device 140.

[0072] In some demonstrative embodiments, device 102 and/or device 140 may include, operate as, perform the role of, and/or perform one or more functionalities of, one or more STAs. For example, device 102 may include at least one STA, and/or device 140 may include at least one STA.

[0073] In some demonstrative embodiments, device 102 and/or device 140 may include, operate as, perform the role of, and/or perform one or more functionalities of, one or more DMG STAs. For example, device 102 may include, operate as, perform the role of, and/or perform one or more functionalities of, at least one DMG STA, and/or device 140 may include, operate as, perform the role of, and/or perform one or more functionalities of, at least one DMG STA. [0074] In other embodiments, devices 102 and/or 140 may include, operate as, perform the role of, and/or perform one or more functionalities of, any other wireless device and/or station, e.g., a WLAN STA, a WiFi STA, and the like.

[0075] In some demonstrative embodiments, device 102 and/or device 140 may be configured operate as, perform the role of, and/or perform one or more functionalities of, an access point (AP), e.g., a DMG AP, and/or a personal basic service set (PBSS) control point (PCP), e.g., a DMG PCP, for example, an AP/PCP STA, e.g., a DMG AP/PCP STA.

[0076] In some demonstrative embodiments, device 102 and/or device 140 may be configured to operate as, perform the role of, and/or perform one or more functionalities of, a non-AP STA, e.g., a DMG non-AP STA, and/or a non-PCP STA, e.g., a DMG non-PCP STA, for example, a non- AP/PCP STA, e.g., a DMG non- AP/PCP STA.

[0077] In other embodiments, device 102 and/or device 140 may operate as, perform the role of, and/or perform one or more functionalities of, any other additional or alternative device and/or station.

[0078] In one example, a station (STA) may include a logical entity that is a singly addressable instance of a medium access control (MAC) and physical layer (PHY) interface to the wireless medium (WM). The STA may perform any other additional or alternative functionality.

[0079] In one example, an AP may include an entity that contains a station (STA), e.g., one STA, and provides access to distribution services, via the wireless medium (WM) for associated STAs. The AP may perform any other additional or alternative functionality.

[0080] In one example, a personal basic service set (PBSS) control point (PCP) may include an entity that contains a STA, e.g., one station (STA), and coordinates access to the wireless medium (WM) by STAs that are members of a PBSS. The PCP may perform any other additional or alternative functionality.

[0081] In one example, a PBSS may include a directional multi-gigabit (DMG) basic service set (BSS) that includes, for example, one PBSS control point (PCP). For example, access to a distribution system (DS) may not be present, but, for example, an intra-PBSS forwarding service may optionally be present. [0082] In one example, a PCP/AP STA may include a station (STA) that is at least one of a PCP or an AP. The PCP/AP STA may perform any other additional or alternative functionality.

[0083] In one example, a non-AP STA may include a STA that is not contained within an AP. The non-AP STA may perform any other additional or alternative functionality.

[0084] In one example, a non-PCP STA may include a STA that is not a PCP. The non-PCP STA may perform any other additional or alternative functionality.

[0085] In one example, a non PCP/AP STA may include a STA that is not a PCP and that is not an AP. The non-PCP/AP STA may perform any other additional or alternative functionality.

[0086] In some demonstrative embodiments devices 102 and/or 140 may be configured to communicate over a Next Generation 60 GHz (NG60) network, an Enhanced DMG (EDMG) network, and/or any other network. For example, devices 102 and/or 140 may perform Multiple-Input-Multiple-Output (MIMO) communication, for example, for communicating over the NG60 and/or EDMG networks, e.g., over an NG60 or an EDMG frequency band.

[0087] In some demonstrative embodiments, devices 102 and/or 140 may be configured to operate in accordance with one or more Specifications, for example, including one or more IEEE 802.11 Specifications, e.g., an IEEE 802.11-2016 Specification, an IEEE 802. Hay Specification, and/or any other specification and/or protocol.

[0088] Some demonstrative embodiments may be implemented, for example, as part of a new standard in an mmWave band, e.g., a 60GHz frequency band or any other directional band, for example, as an evolution of an IEEE 802.11-2016 Specification and/or an IEEE 802.1 lad Specification.

[0089] In some demonstrative embodiments, devices 102 and/or 140 may be configured according to one or more standards, for example, in accordance with an IEEE 802.1 lay Standard, which may be, for example, configured to enhance the efficiency and/or performance of an IEEE 802.1 lad Specification, which may be configured to provide Wi-Fi connectivity in a 60 GHz band.

[0090] Some demonstrative embodiments may enable, for example, to significantly increase the data transmission rates defined in the IEEE 802.1 lad Specification, for example, from 7 Gigabit per second (Gbps), e.g., up to 30 Gbps, or to any other data rate, which may, for example, satisfy growing demand in network capacity for new coming applications.

[0091] Some demonstrative embodiments may be implemented, for example, to allow increasing a transmission data rate, for example, by applying MIMO and/or channel bonding techniques.

[0092] In some demonstrative embodiments, devices 102 and/or 140 may be configured to communicate MIMO communications over the mmWave wireless communication band.

[0093] In some demonstrative embodiments, device 102 and/or device 140 may be configured to support one or more mechanisms and/or features, for example, channel bonding, Single User (SU) MIMO, and/or Multi-User (MU) MIMO, for example, in accordance with an IEEE 802.1 lay Standard and/or any other standard and/or protocol.

[0094] In some demonstrative embodiments, device 102 and/or device 140 may include, operate as, perform a role of, and/or perform the functionality of, one or more EDMG ST As. For example, device 102 may include, operate as, perform a role of, and/or perform the functionality of, at least one EDMG STA, and/or device 140 may include, operate as, perform a role of, and/or perform the functionality of, at least one EDMG STA.

[0095] In some demonstrative embodiments, devices 102 and/or 140 may implement a communication scheme, which may include Physical layer (PHY) and/or Media Access Control (MAC) layer schemes, for example, to support one or more applications, and/or increased transmission data rates, e.g., data rates of up to 30 Gbps, or any other data rate.

[0096] In some demonstrative embodiments, the PHY and/or MAC layer schemes may be configured to support frequency channel bonding over a mmWave band, e.g., over a 60 GHz band, SU MIMO techniques, and/or MU MIMO techniques.

[0097] In some demonstrative embodiments, devices 102 and/or 140 may be configured to implement one or more mechanisms, which may be configured to enable SU and/or MU communication of Downlink (DL) and/or Uplink frames (UL) using a MIMO scheme.

[0098] In some demonstrative embodiments, device 102 and/or device 140 may be configured to implement one or more MU communication mechanisms. For example, devices 102 and/or 140 may be configured to implement one or more MU mechanisms, which may be configured to enable MU communication of DL frames using a MIMO scheme, for example, between a device, e.g., device 102, and a plurality of devices, e.g., including device 140 and/or one or more other devices.

[0099] In some demonstrative embodiments, devices 102 and/or 140 may be configured to communicate over an NG60 network, an EDMG network, and/or any other network and/or any other frequency band. For example, devices 102 and/or 140 may be configured to communicate DL MIMO transmissions and/or UL MIMO transmissions, for example, for communicating over the NG60 and/or EDMG networks.

[00100] Some wireless communication Specifications, for example, the IEEE 802.1 lad-2012 Specification, may be configured to support a SU system, in which a STA may transmit frames to a single STA at a time. Such Specifications may not be able, for example, to support a STA transmitting to multiple STAs simultaneously, for example, using a MU- MIMO scheme, e.g., a DL MU-MIMO, or any other MU scheme.

[00101] In some demonstrative embodiments, devices 102 and/or 140 may be configured to communicate over a channel bandwidth, e.g., of at least 2.16GHz, in a frequency band above 45 GHz.

[00102] In some demonstrative embodiments, devices 102 and/or 140 may be configured to implement one or more mechanisms, which may, for example, enable to extend a single- channel BW scheme, e.g., a scheme in accordance with the IEEE 802.11 ad Specification or any other scheme, for higher data rates and/or increased capabilities, e.g., as described below.

[00103] In one example, the single-channel BW scheme may include communication over a 2.16 GHz channel (also referred to as a "single-channel" or a "DMG channel").

[00104] In some demonstrative embodiments, devices 102 and/or 140 may be configured to implement one or more channel bonding mechanisms, which may, for example, support communication over a channel BW (also referred to as a "wide channel", an "EDMG channel", or a "bonded channel") including two or more channels, e.g., two or more 2.16 GHz channels, e.g., as described below .

[00105] In some demonstrative embodiments, the channel bonding mechanisms may include, for example, a mechanism and/or an operation whereby two or more channels, e.g., 2.16 GHz channels, can be combined, e.g., for a higher bandwidth of packet transmission, for example, to enable achieving higher data rates, e.g., when compared to transmissions over a single channel. Some demonstrative embodiments are described herein with respect to communication over a channel BW including two or more 2.16 GHz channels, however other embodiments may be implemented with respect to communications over a channel bandwidth, e.g., a "wide" channel, including or formed by any other number of two or more channels, for example, an aggregated channel including an aggregation of two or more channels.

[00106] In some demonstrative embodiments, device 102 and/or device 140 may be configured to implement one or more channel bonding mechanisms, which may, for example, support an increased channel bandwidth, for example, a channel BW of 4.32 GHz, a channel BW of 6.48 GHz, a channel BW of 8.64 GHz, and/or any other additional or alternative channel BW, e.g., as described below.

[00107] In some demonstrative embodiments, wireless communication devices 102 and/or 140 may form, or may communicate as part of, a wireless local area network (WLAN).

[00108] In some demonstrative embodiments, wireless communication devices 102 and/or 140 may form, or may communicate as part of, a WiFi network.

[00109] In one example, device 102 may be configured to operate as, perform the role of, and/or perform one or more functionalities of, an AP STA, and/or device 140 may be configured to operate as, perform the role of, and/or perform one or more functionalities of, a non-AP STA.

[00110] In some demonstrative embodiments, wireless communication devices 102 and/or 140 may form, or may communicate as part of, an EDMG network.

[00111] In some demonstrative embodiments, wireless communication devices 102 and/or 140 may include an EDMG STA.

[00112] In one example, device 102 may be configured to operate as, perform the role of, and/or perform one or more functionalities of, an EDMG PCP/AP STA, and/or device 140 may be configured to operate as, perform the role of, and/or perform one or more functionalities of, an EDMG STA.

[00113] In other embodiments, wireless communication devices 102 and/or 140 may form, and/or communicate as part of, any other additional or alternative network.

[00114] In some demonstrative embodiments, devices 102 and/or 140 may be configured to implement one or more operations of a power saving mechanism, which may be defined, for example, for DMG stations, e.g., according to an IEEE 802.11-2016 Specification, and/or any other Specification and/or protocol. [00115] In some demonstrative embodiments, devices 102 and/or 140 may be configured to implement one or more operations of a power saving mechanism, in which a station, e.g., a non-PCP/AP STA may notify an AP/PCP STA, when the station decides to go on a power save mode. For example, device 140 may be configured to notify device 102 when device 140 goes on the power save mode.

[00116] In some demonstrative embodiments, for example, the station may be required to wake up during a periodic Awake Window (AW).

[00117] In some demonstrative embodiments, for example, if the AP/PCP STA has pending traffic for the station, the PCP/AP STA may send an announcement traffic indication message (ATIM) frame, for example, during the awake window. For example, device 102 may transmit an ATIM frame to device 140 during the AW, for example, if device 120 has pending data for device 140.

[00118] In some demonstrative embodiments, the station may be required to exit the power save mode, for example, based on receipt of the ATIM frame.

[00119] In some demonstrative embodiments, in some implementations, no other frames but ATIM and and/or an acknowledgment of the ATIM may be allowed to be transmitted during the awake window.

[00120] In some demonstrative embodiments, devices 102 and/or 140 may be configured to communicate during one or more time periods, for example, during a Beacon Interval (BI).

[00121] In some demonstrative embodiments, for example, channel access by a STA may be related to beacon interval timing and may be coordinated using a schedule, which may be generated, for example, by a STA operating as an AP or PCP and communicated in one or more frames, e.g., beacon and/or announce frames. For example, a non-PCP/AP STA receives scheduling information may access the medium during a scheduled period using the access rules specific to the period.

[00122] In some demonstrative embodiments, the one or more time periods may include one or more Contention-Based Access Periods (CBAPs).

[00123] In one example, a CBAP may include, for example, a time period in a data transfer interval (DTI) of a DMG BSS, for example, during which enhanced distributed channel access (EDCA) may be used. In one example, the DTI may include, for example, an access period during which frame exchanges are performed between STAs. For example, the DTI may include one or more CBAPs and/or one or more Service Periods (SPs). In other embodiments, the CBAP and/or DTI may be defined to include any other type of time period and/or any other contention mechanism.

[00124] In some demonstrative embodiments, multiple CBAP periods may be defined per beacon interval (BI), e.g., in accordance with an IEEE 802.11 Specification. For example, implementing a plurality of CBAPs during a BI may provide at least a technical benefit of reducing a medium access latency, e.g., by defining interleaved CBAP allocations in between Service Period (SP) allocations.

[00125] In some demonstrative embodiments, there may be a technical problem in some cases and/or implementations, for example, when a single awake window is defined per a BI, e.g., only at a first CBAP allocation in the BI, e.g., as described below.

[00126] In one example, according to this definition, the only way for an AP/PCP STA to schedule traffic in a different CBAP for a station in a power save mode is for the AP/PCP STA to send to the station an ATIM frame in the AW of the first CBAP. As a result, the station may be required to remain awake until an end of the BI. Such a situation may have one or more technical deficiencies, for example, as it may be very inefficient from a station power point of view, since for every BI with scheduled traffic, the station may be required to remain awake for an entirety of the BI.

[00127] In some demonstrative embodiments, devices 102 and/or 140 may be configured to implement one or more operations, communications and/or rules configured to allow a station, e.g., an AP/PCP station, to define an awake window during one or more, e.g., some or all, CBAPs in a BI, e.g., as described below.

[00128] In some demonstrative embodiments, devices 102 and/or 140 may be configured to implement one or more operations, communications and/or rules configured to allow a station, e.g., an AP/PCP station, to define an awake window even per CBAP interval, e.g., as described below.

[00129] In some demonstrative embodiments, devices 102 and/or 140 may be configured to implement one or more operations configured to extend one or more benefits of multiple CBAP allocations to stations that use a power save mode, e.g., as described below.

[00130] In some demonstrative embodiments, devices 102 and/or 140 may be configured to generate, transmit, receive and/or process a message, which may include, for example, an awake window element and/or any other element or field, which may set, indicate, advertise, and/or signal an allocation of one or more awake windows during one or more CBAPs of a BI, e.g., as described below.

[00131] In some demonstrative embodiments, a station, e.g., a station implemented by device 102, for example, a PCP/AP STA, may be configured to generate and transmit a message, which may include, for example, an awake window element and/or any other element or field, which may set, indicate, advertise, and/or signal a plurality of AW allocations during a plurality of CBAPs of a BI, e.g., as described below.

[00132] In some demonstrative embodiments, a station, e.g., a station implemented by device 140, may be configured to receive and process a message, which may include, for example, the awake window element and/or any other element or field, which may indicate, advertise, and/or signal a plurality of AW allocations during a plurality of CBAPs of a BI, and to determine one or more AWs in which the station is to be awake, e.g., as described below.

[00133] In some demonstrative embodiments, devices 102 and/or 140 may be configured to generate, transmit, receive and/or process a message, which may include, for example, an awake window element, which may include one or more fields, e.g., one or more additional fields, to support multiple awake windows per BI, e.g., as described below.

[00134] In some demonstrative embodiments, a station, e.g., a station implemented by device 102, may be configured to generate the AW element, for example, to indicate allocation of a plurality of AWs to a plurality of CBAPs, e.g., as described below.

[00135] In some demonstrative embodiments, a station, e.g., a station implemented by device 140, may be configured to receive and process the AW element, for example, to determine one or more allocations of AWs, during which the station is to be awake to receive an ATIM frame, e.g., as described below.

[00136] In some demonstrative embodiments, for example, stations in a power save mode may listen for ATIM frames during the allocations of AWs defined in the one or more CBAP allocations, e.g., all CBAP allocations, during which the stations are allowed to transmit and/or receive data, e.g., as described below.

[00137] In some demonstrative embodiments, controller 124 may be configured to control, cause, and/or trigger device 102 and/or message processor 128 to generate a beacon frame including an AW element. [00138] In some demonstrative embodiments, the AW element may be configured to allocate an AW for each CBAP in the BI, e.g., as described below.

[00139] In some demonstrative embodiments, the AW element may be configured to allocate an AW for only some CBAPs in the BI, e.g., as described below.

[00140] In some demonstrative embodiments, the AW element may include a first AW field and a second AW field, e.g., as described below. In other embodiments, the AW element may include more than two AW fields.

[00141] In some demonstrative embodiments, the first AW field may indicate a first AW during a first CBAP in a BI, and the second AW field may indicate at least one second AW during at least one second CBAP after the first CBAP in the BI, e.g., as described below.

[00142] In some demonstrative embodiments, the first CBAP may be before any other CBAP in the BI.

[00143] For example, the first CBAP may be the first CBAP of the BI, which immediately follows an announcement transmission interval (ATI) of the BI, and after which all other CBAPs may follow, e.g., as described below.

[00144] In some demonstrative embodiments, the second AW field may indicate a plurality of AWs during a plurality of CBAPs, e.g., some or all CBAPs, after the first CBAP in the BI.

[00145] In one example, the second AW field may indicate an AW for each CBAP after the first CBAP in the BI.

[00146] In another example, the second AW field may AWs during some of the plurality of CBAPs, after the first CBAP in the BI.

[00147] In some demonstrative embodiments, controller 124 may be configured to control, cause, and/or trigger device 102 and/or transmitter 118 to transmit the beacon frame during a Beacon Transmission Interval (BTI) of the BI. In other embodiments, controller 124 may be configured to control, cause, and/or trigger device 102 and/or transmitter 118 to transmit the beacon frame during any other part of the BI.

[00148] In some demonstrative embodiments, device 140 may receive the beacon frame from device 102.

[00149] In some demonstrative embodiments, controller 154 may be configured to control, cause, and/or trigger device 140 and/or receiver 148 to process during the BTI of the BI, the received beacon frame from device 102, for example, including the AW element, e.g., including the first and second AW fields.

[00150] In some demonstrative embodiments, controller 154 may be configured to control, cause, and/or trigger device 140 to be awake during the first AW and the second AW, for example, to allow device 140 to receive at least one ATIM, e.g., from device 102.

[00151] In some demonstrative embodiments, controller 154 may be configured to allow device 140 to be in a power save mode during a time period between the first CBAP and the second CBAP, e.g., as described below.

[00152] For example, device 140 may be awake during a first time period in the first CBAP, device 140 may switch to a power save mode during a time period between the first CBAP and the second CBAP, and device 140 may switch to an awake mode to be awake during the second AW in the second CBAP.

[00153] In some demonstrative embodiments, device 102 may transmit an ATIM message to device 140, e.g., during at least one AW, e.g., at least one AW of the first AW or the second AW indicated by the AW element.

[00154] In some demonstrative embodiments, controller 124 may be configured to control, cause, and/or trigger device 102 and/or transmitter 118 to transmit at least one ATIM during at least one AW, e.g., at least one AW of the first AW or the second AW indicated by the AW element.

[00155] In one example, controller 124 may be configured to control, cause, and/or trigger device 102 and/or transmitter 118 to transmit at least one first ATIM during the first AW, and/or least one second ATIM during the at least one second AW.

[00156] In some demonstrative embodiments, the AW element including the first and second AWs may enable device 140 to be in a power save mode during a time period between the first and second AWs, e.g., as described below with reference to Fig. 3.

[00157] In one example, the AW element including the first and second AWs may enable device 140 to be in the power save mode during the time period between the first and second AWs, for example, in contrast to a scenario in which a single awake window is defined for the BI, for example, only at the first CBAP allocation in the BI, e.g., as described below with reference to Fig. 2. [00158] Reference is made Fig. 2, which schematically illustrates a scenario 200 of communications between stations to illustrate a technical problem, which may be solved, in accordance with some demonstrative embodiments.

[00159] As shown in Fig. 2, scenario 200 may include operations and/or communications during a BI 220.

[00160] As shown in Fig. 2, BI 220 may include a first CBAP 222 and a second CBAP 224.

[00161] As shown in Fig. 2, only CBAP 222 includes an awake window 223, while CBAP 223 does not include an AW.

[00162] As shown in Fig. 2, during CBAP 222, a station, denoted STAl, may be required to be awake to receive an ATIM 221, which may indicate allocations of the STAl, for example, during CBAP 222 and CBAP 224.

[00163] As shown in Fig. 2, since only the first CBAP 222 includes an AW 223, the STAl may be required to remain awake during a time period 230 between CBAP 222 and CBAP 224, for example, even during time periods where the STAl may not be required to perform and/or to be available to perform any communication.

[00164] Reference is made Fig. 3, which schematically illustrates communications between stations during a BI 320, in accordance with some demonstrative embodiments.

[00165] As shown in Fig. 3, BI 330 may include a plurality of CBAPs, e.g., including a first CBAP 322 and a second CBAP 324.

[00166] In some demonstrative embodiments, as shown in Fig. 3, an awake window may be defined for more than one CBAP in the BI, e.g., even for every CBAP. For example, the STAl may receive an AW element to allocate a first AW 323 to the first CBAP, and to allocate a second AW 325 to the second CBAP, e.g., as described above.

[00167] In some demonstrative embodiments, as shown in Fig. 3, during CBAP 322 the station (STAl) may receive an ATIM 321, which may indicate allocations of the STAl, for example, during CBAP 322 and CBAP 324.

[00168] In some demonstrative embodiments, as shown in Fig. 3, the STAl may be allowed to switch to a power save mode, for example, upon completion of communications during the first CBAP 322. [00169] In some demonstrative embodiments, for example, as shown in Fig. 3, the STA1 be allowed to remain in the power save mode, for example, even until the beginning of the second AW 324 in the second CBAP 324.

[00170] In some demonstrative embodiments, for example, as shown in Fig. 3, the STA1 may be allowed to be in a power save mode during a time period 330.

[00171] In some demonstrative embodiments, as shown in Fig., 3, defining the awake window 325 for the second CBAP 324 may provide a technical benefit of power save gain, improved network performance, and/or station power consumption.

[00172] Referring back to Fig. 1, in some demonstrative embodiments, device 140 may be allowed to switch to the power save mode, for example, even before an end of a CBAP. For example, device 140 may be configured to switch to the power save mode, for example, even before an end of CBAP 322 (Fig. 3), e.g., as described below.

[00173] In some demonstrative embodiments, controller 154 may be configured to allow device 140 to switch to the power save mode before an end of at least one of the first or second CBAPs, e.g. as described below.

[00174] In some demonstrative embodiments, controller 154 may be configured to allow device 140 to switch to the power save mode before an end of at least one of the first or second CBAPs, for example, based on a received frame including an indication that the device 140 is allowed to switch to the power save mode, e.g., as described below. [00175] In some demonstrative embodiments, controller 154 may be configured to allow device 140 to switch to the power save mode before an end of at least one of the first or second CBAPs, for example, based on a received frame including an End Of Service Period (EOSP) field including a value of "1".

[00176] In other embodiments, controller 154 may be configured to allow device 140 to switch to the power save mode before an end of at least one of the first or second CBAPs, for example, based on any other frame or indication.

[00177] In one example, device 140 may be allowed to switch to the power save mode, for example, even before an end of CBAP 322 (Fig. 3), for example, if device 140 receives before an end of CBAP 322 (Fig. 1) a frame including the EOSP field including the value of "1". [00178] In one example, once a station receives a frame with an EOSP indication, e.g., EOSP=l, indicating an end of allocations in a current CBAP, the station may be allowed to go back to power save mode, for example, until a next awake window in a relevant CBAP allocation.

[00179] In some demonstrative embodiments, the AW fields in the beacon frame may include an indication of a duration of the AWs, e.g., as described below.

[00180] In some demonstrative embodiments, the first AW field may include an indication of a duration of the first AW, e.g., as described below. For example, the first AW field may include an indication of a duration of AW 323 (Fig. 3).

[00181] In some demonstrative embodiments, the second AW field may include an indication of a duration of the second AW, e.g., as described below. For example, the second AW field may include an indication of a duration of AW 325 (Fig. 3).

[00182] In some demonstrative embodiments, the AW element may include a length field to indicate a length of the AW element, and an element identifier (ID) field to identify the AW element, e.g., as described below.

[00183] Reference is made to Fig. 4, which schematically illustrates a structure of an Awake Window (AW) element 420, in accordance with some demonstrative embodiments.

[00184] In some demonstrative embodiments, as shown in Fig. 4, the AW element 420 may include a length field 406 to indicate a length of the AW element 420, and an element ID field 404 to identify the AW element 420.

[00185] In some demonstrative embodiments, as shown in Fig. 4, the AW element 420 may include at least a first AW field 402 to indicate a first AW, and a second AW field 404 to indicate at least a second AW.

[00186] In some demonstrative embodiments, AW field 402 may correspond to the first CBAP of a BI.

[00187] In some demonstrative embodiments, as shown in Fig. 4, an AW field corresponding to an AW, may include an indication of a duration of the AW. For example, AW field 402 may include an indication 410 of a duration of the first AW of the first CBAP of the BI.

[00188] In some demonstrative embodiments, as shown in Fig. 4, the AW element may include a plurality of AW allocation fields corresponding to a plurality of CBAPs, e.g., some or all CBAPs, in the BI. For example, an AW allocation field may correspond to a respective CBAP.

[00189] In other embodiments, an AW allocation field, e.g., AW allocation field 408, may include information corresponding to a plurality of CBAPs.

[00190] In some demonstrative embodiments, an AW allocation field corresponding to a CBAP may include, for example, an indication of one or more parameters of an AW allocation during the CBAP, e.g., the indication of the duration of the AW and/or any other parameter.

[00191] In some demonstrative embodiments, the AW element 420 may include some or all of the fields shown in Fig. 4, and/or may include one or more additional or alternative fields.

[00192] In one example, as shown in Fig. 4, the AW allocation field may include an allocation key field 412, which may be configured, for example, to indicate a CBAP for which the AW is to be allocated.

[00193] In another example, the AW allocation field may not include allocation key field 412.

[00194] In some demonstrative embodiments, the allocation key field 412 may include information configured to identify, e.g., to uniquely identify, a CBAP allocation to which an AW allocation field including the allocation key corresponds.

[00195] In some demonstrative embodiments, the allocation key field 412 may include, for example, three fields as "a tuple", e.g., including an allocation Identifier (ID), a source Association identifier (AID), and/or a destination AID, and/or any additional or alternative information, which uniquely identifies the CBAP allocation.

[00196] In some demonstrative embodiments, for example, to allow backward compatibility, e.g., for a "legacy" station, these three fields may be set to zero, for example, to allocate an awake window in a first CBAP allocation of the BI.

[00197] In some demonstrative embodiments, the AW allocation field may include some or all of the fields shown in Fig. 4, and/or may include one or more additional or alternative fields.

[00198] For example, the AW allocation field may include only an indication of a duration of an AW and/or may not include the allocation key field 412. [00199] Reference is made to Fig. 5, which schematically illustrates a method of transmitting a beacon frame including an awake window element, in accordance with some demonstrative embodiments. For example, one or more of the operations of the method of Fig. 5 may be performed by one or more elements of a system, e.g., system 100 (Fig. 1), for example, one or more wireless devices, e.g., device 102 (Fig. 1), and/or device 140 (Fig. 1); a controller, e.g., controller 124 (Fig. 1), and/or controller 154 (Fig. 1); a radio, e.g., radio 114 (Fig. 1), and/or radio 144 (Fig. 1); a transmitter, e.g., transmitter 118 (Fig. 1), and/or transmitter 148 (Fig. 1); a receiver, e.g., receiver 116 (Fig. 1), and/or receiver 146 (Fig. 1); and/or a message processor, e.g., message processor 128 (Fig. 1), and/or message processor 158 (Fig. 1).

[00200] As indicated at block 502, the method may include generating a beacon frame including an AW element including a first AW field and a second AW field, the first AW field to indicate a first AW during a first CBAP in a BI, the second AW field to indicate at least one second AW during at least one second CBAP after the first CBAP in the BI. For example, controller 102 (Fig. 1) may control, cause and/or trigger device 102 (Fig. 1) to generate the beacon frame including the AW element including the first AW field and the second AW field, the first AW field to indicate the first AW during the first CBAP in the BI, the second AW field to indicate at least one second AW during at least one second CBAP after the first CBAP in the BI, e.g., as described above.

[00201] As indicated at block 504, the method may include transmitting the beacon frame during a BTI of the BI. For example, controller 124 (Fig. 1) may control, cause, and/or trigger device 102 (Fig. 1) to transmit the beacon frame during the BTI of the BI, e.g., as described above.

[00202] Reference is made to Fig. 6, which schematically illustrates a method of power management, in accordance with some demonstrative embodiments. For example, one or more of the operations of the method of Fig. 6 may be performed by one or more elements of a system, e.g., system 100 (Fig. 1), for example, one or more wireless devices, e.g., device 102 (Fig. 1), and/or device 140 (Fig. 1); a controller, e.g., controller 124 (Fig. 1), and/or controller 154 (Fig. 1); a radio, e.g., radio 114 (Fig. 1), and/or radio 144 (Fig. 1); a transmitter, e.g., transmitter 118 (Fig. 1), and/or transmitter 148 (Fig. 1); a receiver, e.g., receiver 116 (Fig. 1), and/or receiver 146 (Fig. 1); and/or a message processor, e.g., message processor 128 (Fig. 1), and/or message processor 158 (Fig. 1). [00203] As indicated at block 602, the method may include processing at a wireless communication station a received beacon frame during a BTI of a BI, the beacon frame including an AW element including a first AW field and a second AW field, the first AW field to indicate a first AW during a first CBAP in the BI, the second AW field to indicate at least one second AW during at least one second CBAP after the first CBAP in the BI. For example, controller 154 (Fig. 1) may control, cause, and/or trigger device 140 (Fig. 1) to process the beacon frame including the AW element including the first AW field and the second AW field, the first AW field to indicate the first AW during the first CBAP in the BI, the second AW field to indicate at least one second AW during at least one second CBAP after the first CBAP in the BI, e.g., as described above.

[00204] As indicated at block 604, the method may include causing the wireless communication station to be awake during the first AW and the second AW to allow the wireless communication station to receive at least one ATIM. For example, controller 154 (Fig. 1) may control, cause, and/or trigger device 140 (Fig. 1) to be awake during the first AW and the second AW to allow device 140 (Fig. 1) to receive at least one ATIM, e.g., as described above.

[00205] As indicated at block 606, the method may include allowing the wireless communication station to be in a power save mode during a time period between the first CBAP and the second CBAP. For example, controller 154 (Fig. 1) may allow device 140 (Fig. 1) to be in a power save mode during a time period between the first CBAP and the second CBAP, e.g., as described above.

[00206] Reference is made to Fig. 7, which schematically illustrates a product of manufacture 700, in accordance with some demonstrative embodiments. Product 700 may include one or more tangible computer-readable non-transitory storage media 702, which may include computer-executable instructions, e.g., implemented by logic 704, operable to, when executed by at least one processor, e.g., computer processor, enable the at least one processor to implement one or more operations at device 102 (Fig. 1), device 140 (Fig. 1), radio 114 (Fig. 1), radio 144 (Fig. 1), transmitter 118 (Fig. 1), transmitter 148 (Fig. 1), receiver 116 (Fig. 1), receiver 146 (Fig. 1), controller 124 (Fig. 1), controller 154 (Fig. 1), message processor 128 (Fig. 1), and/or message processor 158 (Fig. 1), to cause device 102 (Fig. 1), device 140 (Fig. 1), radio 114 (Fig. 1), radio 144 (Fig. 1), transmitter 118 (Fig. 1), transmitter 148 (Fig. 1), receiver 116 (Fig. 1), 1), receiver 146 (Fig. 1), controller 124 (Fig. 1), controller 154 (Fig. 1), message processor 128 (Fig. 1), and/or message processor 158 (Fig. 1) to perform one or more operations, and/or to perform, trigger and/or implement one or more operations, communications and/or functionalities described above with reference to Figs. 1, 2, 3, 4, 5 and/or 6, and/or one or more operations described herein. The phrase "non- transitory machine-readable medium" is directed to include all computer-readable media, with the sole exception being a transitory propagating signal.

[00207] In some demonstrative embodiments, product 700 and/or storage media 702 may include one or more types of computer-readable storage media capable of storing data, including volatile memory, non-volatile memory, removable or non-removable memory, erasable or non-erasable memory, writeable or re-writeable memory, and the like. For example, storage media 702 may include, RAM, DRAM, Double-Data-Rate DRAM (DDR- DRAM), SDRAM, static RAM (SRAM), ROM, programmable ROM (PROM), erasable programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), Compact Disk ROM (CD-ROM), Compact Disk Recordable (CD-R), Compact Disk Rewriteable (CD-RW), flash memory (e.g., NOR or NAND flash memory), content addressable memory (CAM), polymer memory, phase-change memory, ferroelectric memory, silicon-oxide-nitride-oxide-silicon (SONOS) memory, a disk, a floppy disk, a hard drive, an optical disk, a magnetic disk, a card, a magnetic card, an optical card, a tape, a cassette, and the like. The computer-readable storage media may include any suitable media involved with downloading or transferring a computer program from a remote computer to a requesting computer carried by data signals embodied in a carrier wave or other propagation medium through a communication link, e.g., a modem, radio or network connection.

[00208] In some demonstrative embodiments, logic 704 may include instructions, data, and/or code, which, if executed by a machine, may cause the machine to perform a method, process and/or operations as described herein. The machine may include, for example, any suitable processing platform, computing platform, computing device, processing device, computing system, processing system, computer, processor, or the like, and may be implemented using any suitable combination of hardware, software, firmware, and the like.

[00209] In some demonstrative embodiments, logic 704 may include, or may be implemented as, software, a software module, an application, a program, a subroutine, instructions, an instruction set, computing code, words, values, symbols, and the like. The instructions may include any suitable type of code, such as source code, compiled code, interpreted code, executable code, static code, dynamic code, and the like. The instructions may be implemented according to a predefined computer language, manner or syntax, for instructing a processor to perform a certain function. The instructions may be implemented using any suitable high-level, low-level, object-oriented, visual, compiled and/or interpreted programming language, such as C, C++, Java, BASIC, Matlab, Pascal, Visual BASIC, assembly language, machine code, and the like.

EXAMPLES

[00210] The following examples pertain to further embodiments.

[00211] Example 1 includes an apparatus comprising logic and circuitry configured to cause a wireless communication station to generate a beacon frame comprising an awake window (AW) element comprising a first AW field and a second AW field, the first AW field to indicate a first AW during a first Contention Based Access Period (CBAP) in a Beacon Interval (BI), the second AW field to indicate at least one second AW during at least one second CBAP after the first CBAP in the BI; and transmit the beacon frame during a Beacon Transmission Interval (BTI) of the BI.

[00212] Example 2 includes the subject matter of Example 1, and optionally, wherein the first CBAP is before any other CBAP in the BI.

[00213] Example 3 includes the subject matter of Example 1 or 2, and optionally, wherein the first AW field comprises an indication of a duration of the first AW.

[00214] Example 4 includes the subject matter of any one of Examples 1-3, and optionally, wherein the second AW field comprises an indication of a duration of the second AW.

[00215] Example 5 includes the subject matter of any one of Examples 1-4, and optionally, wherein the AW element is to allocate an AW for each CBAP in the BI.

[00216] Example 6 includes the subject matter of any one of Examples 1-4, and optionally, wherein the AW element is to allocate an AW for only some CBAPs in the BI.

[00217] Example 7 includes the subject matter of any one of Examples 1-6, and optionally, wherein the apparatus is configured to cause the wireless station to transmit at least one Announcement Traffic Indication Message (ATIM) during at least one AW of the first AW or the second AW.

[00218] Example 8 includes the subject matter of any one of Examples 1-7, and optionally, wherein the AW element comprises a length field to indicate a length of the AW element, and an element identifier (ID) field to identify the AW element. [00219] Example 9 includes the subject matter of any one of Examples 1-8, and optionally, wherein the wireless communication station comprises an Enhanced Directional Multi- Gigabit (EDMG) station.

[00220] Example 10 includes the subject matter of any one of Examples 1-9, and optionally, wherein the wireless communication station comprises a Personal Basic Service Set (PBSS) Control Point (PCP) or an Access Point (AP) station (STA) (PCP/AP STA).

[00221] Example 11 includes the subject matter of any one of Examples 1-10, and optionally, comprising a radio.

[00222] Example 12 includes the subject matter of any one of Examples 1-11, and optionally, comprising a memory, a processor, and one or more antennas.

[00223] Example 13 includes a system of wireless communication comprising a wireless communication station, the wireless communication station comprising one or more antennas; a radio; a memory; a processor; and a controller configured to cause the wireless communication station to generate a beacon frame comprising an awake window (AW) element comprising a first AW field and a second AW field, the first AW field to indicate a first AW during a first Contention Based Access Period (CBAP) in a Beacon Interval (BI), the second AW field to indicate at least one second AW during at least one second CBAP after the first CBAP in the BI; and transmit the beacon frame during a Beacon Transmission Interval (BTI) of the BI.

[00224] Example 14 includes the subject matter of Example 13, and optionally, wherein the first CBAP is before any other CBAP in the BI.

[00225] Example 15 includes the subject matter of Example 13 or 14, and optionally, wherein the first AW field comprises an indication of a duration of the first AW.

[00226] Example 16 includes the subject matter of any one of Examples 13-15, and optionally, wherein the second AW field comprises an indication of a duration of the second AW.

[00227] Example 17 includes the subject matter of any one of Examples 13-16, and optionally, wherein the AW element is to allocate an AW for each CBAP in the BI.

[00228] Example 18 includes the subject matter of any one of Examples 13-16, and optionally, wherein the AW element is to allocate an AW for only some CBAPs in the BI. [00229] Example 19 includes the subject matter of any one of Examples 13-18, and optionally, wherein the controller is configured to cause the wireless station to transmit at least one Announcement Traffic Indication Message (ATIM) during at least one AW of the first AW or the second AW.

[00230] Example 20 includes the subject matter of any one of Examples 13-19, and optionally, wherein the AW element comprises a length field to indicate a length of the AW element, and an element identifier (ID) field to identify the AW element.

[00231] Example 21 includes the subject matter of any one of Examples 13-20, and optionally, wherein the wireless communication station comprises an Enhanced Directional Multi-Gigabit (EDMG) station.

[00232] Example 22 includes the subject matter of any one of Examples 13-21, and optionally, wherein the wireless communication station comprises a Personal Basic Service Set (PBSS) Control Point (PCP) or an Access Point (AP) station (STA) (PCP/AP STA).

[00233] Example 23 includes a method to be performed at a wireless communication station, the method comprising generating a beacon frame comprising an awake window (AW) element comprising a first AW field and a second AW field, the first AW field to indicate a first AW during a first Contention Based Access Period (CBAP) in a Beacon Interval (BI), the second AW field to indicate at least one second AW during at least one second CBAP after the first CBAP in the BI; and transmitting the beacon frame during a Beacon Transmission Interval (BTI) of the BI.

[00234] Example 24 includes the subject matter of Example 23, and optionally, wherein the first CBAP is before any other CBAP in the BI.

[00235] Example 25 includes the subject matter of Example 23 or 24, and optionally, wherein the first AW field comprises an indication of a duration of the first AW.

[00236] Example 26 includes the subject matter of any one of Examples 23-25, and optionally, wherein the second AW field comprises an indication of a duration of the second AW.

[00237] Example 27 includes the subject matter of any one of Examples 23-26, and optionally, wherein the AW element is to allocate an AW for each CBAP in the BI.

[00238] Example 28 includes the subject matter of any one of Examples 23-26, and optionally, wherein the AW element is to allocate an AW for only some CBAPs in the BI. [00239] Example 29 includes the subject matter of any one of Examples 23-28, and optionally, comprising transmitting at least one Announcement Traffic Indication Message (ATIM) during at least one AW of the first AW or the second AW.

[00240] Example 30 includes the subject matter of any one of Examples 23-29, and optionally, wherein the AW element comprises a length field to indicate a length of the AW element, and an element identifier (ID) field to identify the AW element.

[00241] Example 31 includes the subject matter of any one of Examples 23-30, and optionally, wherein the wireless communication station comprises an Enhanced Directional Multi-Gigabit (EDMG) station.

[00242] Example 32 includes the subject matter of any one of Examples 23-31, and optionally, wherein the wireless communication station comprises a Personal Basic Service Set (PBSS) Control Point (PCP) or an Access Point (AP) station (STA) (PCP/AP STA).

[00243] Example 33 includes a product comprising one or more tangible computer-readable non-transitory storage media comprising computer-executable instructions operable to, when executed by at least one processor, enable the at least one processor to cause a wireless communication station to generate a beacon frame comprising an awake window (AW) element comprising a first AW field and a second AW field, the first AW field to indicate a first AW during a first Contention Based Access Period (CBAP) in a Beacon Interval (BI), the second AW field to indicate at least one second AW during at least one second CBAP after the first CBAP in the BI; and transmit the beacon frame during a Beacon Transmission Interval (BTI) of the BI.

[00244] Example 34 includes the subject matter of Example 33, and optionally, wherein the first CBAP is before any other CBAP in the BI.

[00245] Example 35 includes the subject matter of Example 33 or 34, and optionally, wherein the first AW field comprises an indication of a duration of the first AW.

[00246] Example 36 includes the subject matter of any one of Examples 33-35, and optionally, wherein the second AW field comprises an indication of a duration of the second AW.

[00247] Example 37 includes the subject matter of any one of Examples 33-36, and optionally, wherein the AW element is to allocate an AW for each CBAP in the BI. [00248] Example 38 includes the subject matter of any one of Examples 33-36, and optionally, wherein the AW element is to allocate an AW for only some CBAPs in the BI.

[00249] Example 39 includes the subject matter of any one of Examples 33-38, and optionally, wherein the instructions, when executed, cause the wireless station to transmit at least one Announcement Traffic Indication Message (ATIM) during at least one AW of the first AW or the second AW.

[00250] Example 40 includes the subject matter of any one of Examples 33-39, and optionally, wherein the AW element comprises a length field to indicate a length of the AW element, and an element identifier (ID) field to identify the AW element.

[00251] Example 41 includes the subject matter of any one of Examples 33-40, and optionally, wherein the wireless communication station comprises an Enhanced Directional Multi-Gigabit (EDMG) station.

[00252] Example 42 includes the subject matter of any one of Examples 33-41, and optionally, wherein the wireless communication station comprises a Personal Basic Service Set (PBSS) Control Point (PCP) or an Access Point (AP) station (STA) (PCP/AP STA).

[00253] Example 43 includes an apparatus of wireless communication by a wireless communication station, the apparatus comprising means for generating a beacon frame comprising an awake window (AW) element comprising a first AW field and a second AW field, the first AW field to indicate a first AW during a first Contention Based Access Period (CBAP) in a Beacon Interval (BI), the second AW field to indicate at least one second AW during at least one second CBAP after the first CBAP in the BI; and means for transmitting the beacon frame during a Beacon Transmission Interval (BTI) of the BI.

[00254] Example 44 includes the subject matter of Example 43, and optionally, wherein the first CBAP is before any other CBAP in the BI.

[00255] Example 45 includes the subject matter of Example 43 or 44, and optionally, wherein the first AW field comprises an indication of a duration of the first AW.

[00256] Example 46 includes the subject matter of any one of Examples 43-45, and optionally, wherein the second AW field comprises an indication of a duration of the second AW.

[00257] Example 47 includes the subject matter of any one of Examples 43-46, and optionally, wherein the AW element is to allocate an AW for each CBAP in the BI. [00258] Example 48 includes the subject matter of any one of Examples 43-46, and optionally, wherein the AW element is to allocate an AW for only some CBAPs in the BI.

[00259] Example 49 includes the subject matter of any one of Examples 43-48, and optionally, comprising means for transmitting at least one Announcement Traffic Indication Message (ATIM) during at least one AW of the first AW or the second AW.

[00260] Example 50 includes the subject matter of any one of Examples 43-49, and optionally, wherein the AW element comprises a length field to indicate a length of the AW element, and an element identifier (ID) field to identify the AW element.

[00261] Example 51 includes the subject matter of any one of Examples 43-50, and optionally, wherein the wireless communication station comprises an Enhanced Directional Multi-Gigabit (EDMG) station.

[00262] Example 52 includes the subject matter of any one of Examples 43-51, and optionally, wherein the wireless communication station comprises a Personal Basic Service Set (PBSS) Control Point (PCP) or an Access Point (AP) station (STA) (PCP/AP STA).

[00263] Example 53 includes an apparatus comprising logic and circuitry configured to cause a wireless communication station to process a received beacon frame during a Beacon Transmission Interval (BTI) of a beacon interval (BI), the beacon frame comprising an awake window (AW) element comprising a first AW field and a second AW field, the first AW field to indicate a first AW during a first Contention Based Access Period (CBAP) in the BI, the second AW field to indicate at least one second AW during at least one second CBAP after the first CBAP in the BI; be awake during the first AW and the second AW to allow the wireless communication station to receive at least one Announcement Traffic Indication Message (ATIM); and allow the wireless communication station to be in a power save mode during a time period between the first CBAP and the second CBAP.

[00264] Example 54 includes the subject matter of Example 53, and optionally, wherein the apparatus is configured to allow the wireless communication station to switch to the power save mode before an end of at least one of the first or second CBAPs.

[00265] Example 55 includes the subject matter of Example 53 or 54, and optionally, wherein the apparatus is configured to allow the wireless communication station to switch to the power save mode before an end of at least one of the first or second CBAPs, based on a received frame comprising an End Of Service Period (EOSP) field comprising a value of "1". [00266] Example 56 includes the subject matter of any one of Examples 53-55, and optionally, wherein the first CBAP is before any other CBAP in the BI.

[00267] Example 57 includes the subject matter of any one of Examples 53-56, and optionally, wherein the first AW field comprises an indication of a duration of the first AW.

[00268] Example 58 includes the subject matter of any one of Examples 53-57, and optionally, wherein the second AW field comprises an indication of a duration of the second AW.

[00269] Example 59 includes the subject matter of any one of Examples 53-58, and optionally, wherein the AW element is to allocate an AW for each CBAP in the BI.

[00270] Example 60 includes the subject matter of any one of Examples 53-58, and optionally, wherein the AW element is to allocate an AW for only some CBAPs in the BI.

[00271] Example 61 includes the subject matter of any one of Examples 53-60, and optionally, wherein the AW element comprises a length field to indicate a length of the AW element, and an element identifier (ID) field to identify the AW element.

[00272] Example 62 includes the subject matter of any one of Examples 53-61, and optionally, wherein the station comprises an Enhanced Directional Multi- Gigabit (EDMG) station.

[00273] Example 63 includes the subject matter of any one of Examples 53-62, and optionally, comprising a radio.

[00274] Example 64 includes the subject matter of any one of Examples 53-63, and optionally, comprising a memory, a processor, and one or more antennas.

[00275] Example 65 includes a system of wireless communication comprising a wireless communication station, the wireless communication station comprising one or more antennas; a radio; a memory; a processor; and a controller configured to cause the wireless communication station to process a received beacon frame during a Beacon Transmission Interval (BTI) of a beacon interval (BI), the beacon frame comprising an awake window (AW) element comprising a first AW field and a second AW field, the first AW field to indicate a first AW during a first Contention Based Access Period (CBAP) in the BI, the second AW field to indicate at least one second AW during at least one second CBAP after the first CBAP in the BI; be awake during the first AW and the second AW to allow the wireless communication station to receive at least one Announcement Traffic Indication Message (ATIM); and allow the wireless communication station to be in a power save mode during a time period between the first CBAP and the second CBAP.

[00276] Example 66 includes the subject matter of Example 65, and optionally, wherein the controller is configured to allow the wireless communication station to switch to the power save mode before an end of at least one of the first or second CBAPs.

[00277] Example 67 includes the subject matter of Example 65 or 66, and optionally, wherein the controller is configured to allow the wireless communication station to switch to the power save mode before an end of at least one of the first or second CBAPs, based on a received frame comprising an End Of Service Period (EOSP) field comprising a value of "1".

[00278] Example 68 includes the subject matter of any one of Examples 65-67, and optionally, wherein the first CBAP is before any other CBAP in the BI.

[00279] Example 69 includes the subject matter of any one of Examples 65-68, and optionally, wherein the first AW field comprises an indication of a duration of the first AW.

[00280] Example 70 includes the subject matter of any one of Examples 65-69, and optionally, wherein the second AW field comprises an indication of a duration of the second AW.

[00281] Example 71 includes the subject matter of any one of Examples 65-70, and optionally, wherein the AW element is to allocate an AW for each CBAP in the BI.

[00282] Example 72 includes the subject matter of any one of Examples 65-70, and optionally, wherein the AW element is to allocate an AW for only some CBAPs in the BI.

[00283] Example 73 includes the subject matter of any one of Examples 65-72, and optionally, wherein the AW element comprises a length field to indicate a length of the AW element, and an element identifier (ID) field to identify the AW element.

[00284] Example 74 includes the subject matter of any one of Examples 65-73, and optionally, wherein the station comprises an Enhanced Directional Multi- Gigabit (EDMG) station.

[00285] Example 75 includes a method to be performed at a wireless communication station, the method comprising processing a received beacon frame during a Beacon Transmission Interval (BTI) of a beacon interval (BI), the beacon frame comprising an awake window (AW) element comprising a first AW field and a second AW field, the first AW field to indicate a first AW during a first Contention Based Access Period (CBAP) in the BI, the second AW field to indicate at least one second AW during at least one second CBAP after the first CBAP in the BI; being awake during the first AW and the second AW to allow the wireless communication station to receive at least one Announcement Traffic Indication Message (ATIM); and allowing the wireless communication station to be in a power save mode during a time period between the first CBAP and the second CBAP.

[00286] Example 76 includes the subject matter of Example 75, and optionally, comprising allowing the wireless communication station to switch to the power save mode before an end of at least one of the first or second CBAPs.

[00287] Example 77 includes the subject matter of Example 75 or 76, and optionally, comprising allowing the wireless communication station to switch to the power save mode before an end of at least one of the first or second CBAPs, based on a received frame comprising an End Of Service Period (EOSP) field comprising a value of "1".

[00288] Example 78 includes the subject matter of any one of Examples 75-77, and optionally, wherein the first CBAP is before any other CBAP in the BI.

[00289] Example 79 includes the subject matter of any one of Examples 75-78, and optionally, wherein the first AW field comprises an indication of a duration of the first AW.

[00290] Example 80 includes the subject matter of any one of Examples 75-79, and optionally, wherein the second AW field comprises an indication of a duration of the second AW.

[00291] Example 81 includes the subject matter of any one of Examples 75-80, and optionally, wherein the AW element is to allocate an AW for each CBAP in the BI.

[00292] Example 82 includes the subject matter of any one of Examples 75-80, and optionally, wherein the AW element is to allocate an AW for only some CBAPs in the BI.

[00293] Example 83 includes the subject matter of any one of Examples 75-82, and optionally, wherein the AW element comprises a length field to indicate a length of the AW element, and an element identifier (ID) field to identify the AW element.

[00294] Example 84 includes the subject matter of any one of Examples 75-83, and optionally, wherein the station comprises an Enhanced Directional Multi- Gigabit (EDMG) station.

[00295] Example 85 includes a product comprising one or more tangible computer-readable non-transitory storage media comprising computer-executable instructions operable to, when executed by at least one processor, enable the at least one processor to cause a wireless communication station to process a received beacon frame during a Beacon Transmission Interval (BTI) of a beacon interval (BI), the beacon frame comprising an awake window (AW) element comprising a first AW field and a second AW field, the first AW field to indicate a first AW during a first Contention Based Access Period (CBAP) in the BI, the second AW field to indicate at least one second AW during at least one second CBAP after the first CBAP in the BI; be awake during the first AW and the second AW to allow the wireless communication station to receive at least one Announcement Traffic Indication Message (ATIM); and allow the wireless communication station to be in a power save mode during a time period between the first CBAP and the second CBAP.

[00296] Example 86 includes the subject matter of Example 85, and optionally, wherein the instructions, when executed, allow the wireless communication station to switch to the power save mode before an end of at least one of the first or second CBAPs.

[00297] Example 87 includes the subject matter of Example 85 or 86, and optionally, wherein the instructions, when executed, allow the wireless communication station to switch to the power save mode before an end of at least one of the first or second CBAPs, based on a received frame comprising an End Of Service Period (EOSP) field comprising a value of "1".

[00298] Example 88 includes the subject matter of any one of Examples 85-87, and optionally, wherein the first CBAP is before any other CBAP in the BI.

[00299] Example 89 includes the subject matter of any one of Examples 85-88, and optionally, wherein the first AW field comprises an indication of a duration of the first AW.

[00300] Example 90 includes the subject matter of any one of Examples 85-89, and optionally, wherein the second AW field comprises an indication of a duration of the second AW.

[00301] Example 91 includes the subject matter of any one of Examples 85-90, and optionally, wherein the AW element is to allocate an AW for each CBAP in the BI.

[00302] Example 92 includes the subject matter of any one of Examples 85-90, and optionally, wherein the AW element is to allocate an AW for only some CBAPs in the BI.

[00303] Example 93 includes the subject matter of any one of Examples 85-92, and optionally, wherein the AW element comprises a length field to indicate a length of the AW element, and an element identifier (ID) field to identify the AW element. [00304] Example 94 includes the subject matter of any one of Examples 85-93, and optionally, wherein the station comprises an Enhanced Directional Multi- Gigabit (EDMG) station.

[00305] Example 95 includes an apparatus of wireless communication by a wireless communication station, the apparatus comprising means for processing a received beacon frame during a Beacon Transmission Interval (BTI) of a beacon interval (BI), the beacon frame comprising an awake window (AW) element comprising a first AW field and a second AW field, the first AW field to indicate a first AW during a first Contention Based Access Period (CBAP) in the BI, the second AW field to indicate at least one second AW during at least one second CBAP after the first CBAP in the BI; means for being awake during the first AW and the second AW to allow the wireless communication station to receive at least one Announcement Traffic Indication Message (ATIM); and means for allowing the wireless communication station to be in a power save mode during a time period between the first CBAP and the second CBAP.

[00306] Example 96 includes the subject matter of Example 95, and optionally, comprising means for allowing the wireless communication station to switch to the power save mode before an end of at least one of the first or second CBAPs.

[00307] Example 97 includes the subject matter of Example 95 or 96, and optionally, comprising means for allowing the wireless communication station to switch to the power save mode before an end of at least one of the first or second CBAPs, based on a received frame comprising an End Of Service Period (EOSP) field comprising a value of "1".

[00308] Example 98 includes the subject matter of any one of Examples 95-97, and optionally, wherein the first CBAP is before any other CBAP in the BI.

[00309] Example 99 includes the subject matter of any one of Examples 95-98, and optionally, wherein the first AW field comprises an indication of a duration of the first AW.

[00310] Example 100 includes the subject matter of any one of Examples 95-99, and optionally, wherein the second AW field comprises an indication of a duration of the second AW.

[00311] Example 101 includes the subject matter of any one of Examples 95-100, and optionally, wherein the AW element is to allocate an AW for each CBAP in the BI. [00312] Example 102 includes the subject matter of any one of Examples 95-100, and optionally, wherein the AW element is to allocate an AW for only some CBAPs in the BI.

[00313] Example 103 includes the subject matter of any one of Examples 95-102, and optionally, wherein the AW element comprises a length field to indicate a length of the AW element, and an element identifier (ID) field to identify the AW element.

[00314] Example 104 includes the subject matter of any one of Examples 95-103, and optionally, wherein the station comprises an Enhanced Directional Multi- Gigabit (EDMG) station.

[00315] Functions, operations, components and/or features described herein with reference to one or more embodiments, may be combined with, or may be utilized in combination with, one or more other functions, operations, components and/or features described herein with reference to one or more other embodiments, or vice versa.

[00316] While certain features have been illustrated and described herein, many modifications, substitutions, changes, and equivalents may occur to those skilled in the art. It is, therefore, to be understood that the appended claims are intended to cover all such modifications and changes as fall within the true spirit of the disclosure.