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Patent Searching and Data


Matches 651 - 700 out of 18,032

Document Document Title
WO/2008/084137A1
A code for signal transmission is a so-called perfect code with zero sidelobes in its autocorrelation function if and only if the modulus of the Fourier transform of said code is equal to 1. A communication device equipped for communicat...  
WO/2008/084532A1
There is provided a communication device capable of performing encoding and decoding calculation processing according to a parameter necessary for encoding and decoding processes, the processing load of which is thereby reduced, so that ...  
WO/2008/084859A1
Provided is a radio communication base station device capable of suppressing degradation of a signal error ratio characteristic for a mobile station in the vicinity of the cell center when a plurality of signals whose transmission power ...  
WO/2008/084659A1
It is possible to provide a radio communication terminal, a handoff method in the radio communication terminal, and a radio system which can significantly suppress generation of an instantaneous disconnection in a handoff operation. The ...  
WO/2008/081531A1
A random access channel transmission method is a method in which a user terminal selects a preamble pattern from among a plurality of known preamble patterns and transmits the selected preamble pattern to a base station. The transmission...  
WO/2008/081535A1
In a multicarrier cellular system, a second synchronizing code (a Walsh code or a GCL code), which is subjected to the mapping and which becomes a second synchronizing channel, is used as a signal for a mobile station terminal device its...  
WO/2008/082279A1
A method and apparatus for transmitting and receiving control information in an SC-FDMA system are provided. Different orthogonal codes are generated for different slots each including a plurality of SC-FDMA symbols in a subframe. A cont...  
WO/2008/082280A1
A method and apparatus for transmitting and receiving control information in an SC-FDMA system are provided, in which different cyclic shift values are generated for different SC-FDMA symbols in one of a slot and a subframe, a sequence a...  
WO/2008/078694A1
A wireless communication terminal device, a handoff method in the wireless communication terminal device and a wireless system are provided for making it possible to suppress the occurrence of an instantaneous interruption as much as pos...  
WO/2008/078357A1
Disclosed is a base station in a wireless communication system in which each user terminal uses a frequency in a different data transmission band assigned by the base station to transmit a data signal to the base station and time-multipl...  
WO/2008/074209A1
A method for implementing a high-data-rate orthogonal frequency-division multiplex (OFDM) wireless local area network and the system thereof belong to the wireless communication technical field. In the implementing method and system, a t...  
WO/2007/092744A3
A wireless communication unit (100) comprises a receiver for receiving a wireless signal having signal-to-noise ratio (SNR) measurement logic (112) for measuring a SNR value of the received signal and signal processing logic (108) arrang...  
WO/2008/069108A1
It is possible to provide a radio communication terminal, a handoff method in the radio communication terminal, and a radio communication system which can suppress the affect of an instantaneous disconnection in a hard handoff. The radio...  
WO/2008/067689A1
A method for despreading orthogonal pseudorandom noise includes the following steps: inputting data sequences I' and Q', and inputting pseudorandom noise sequences PNI and PNQ to be despreaded; in every timeslot, respectively continuousl...  
WO/2008/068547A1
A method comprising: selecting an available orthogonal spreading code from a set of orthogonal spreading codes that are used for separating overlapping radio transmissions in a spread spectrum multiple access communication system; spread...  
WO/2008/069736A2
Multi-transmitter interference caused by one or more interfering own-cell and/or other- cell transmitters is reduced in a RAKE-based receiver. The RAKE-based receiver comprises a plurality of RAKE fingers, a processor and a combiner. The...  
WO/2008/065919A1
A wireless telephone device, a hand-off method in a wireless telephone device and a communication system are provided to enable the occurrence suppression of instant disconnection in a MAHHO as much as possible. A wireless telephone devi...  
WO/2008/066348A1
A communication system generates a continuously orthogonal spreading code for a user, a user signal is spreading-modulated by using the continuously orthogonal spreading codes, and then the spread signal is pre-rake combined and transmit...  
WO/2008/064597A1
A method and a device for testing the service type. The method comprises the following steps: receiving the send routing information message to judge the service type of this call; and returning the send routing response information with...  
WO/2007/137270A3
The present disclosure provides for methods and systems for segmented spread-spectrum communication according to one embodiment of the invention. Segmented spread-spectrum communication may include replicating a signal, spreading each of...  
WO/2008/065191A1
Generation of a set of spreading codes starts with determining first and second chaotic pseudo-random noise codes having delta-peak-like autocorrelation functions and a low cross-correlation function. Further codes are obtained by the st...  
WO2007051042A8  
WO/2008/060045A1
Provided are a system and method for human body communication using a limited passband. The system includes a transmission frame generating unit for human body communication which generates a transmission frame for human body communicati...  
WO/2008/057752A2
A method and apparatus for transmitting a primary and secondary synchronization channel is provided herein. During operation a transmitter will transmit a primary synchronization channel (P-SCH) in a subframe and a secondary synchronizat...  
WO/2008/053788A1
An OFDMA communication system and base stations, terminals and a base station switching method that are used in that communication system wherein there is no need of dismissing a wireless connection with a base station of handover source...  
WO/2008/053971A1
A Zadoff-Chu sequence (ZC sequence) allocation method is provided to enable the prevention of, while the sequence length of a Zadoff-Chu sequence is kept long, both performance deteriorations due to an influence of a frequency offset and...  
WO/2008/054706A2
Embodiments of a phase lock loop and a method for compensating a temperature thereof can output an initial tuning digital value for a voltage controlled oscillator configured to output a desired phase lock loop frequency compensated acco...  
WO/2008/053845A1
A transmission power increasing section repetitively transmits a transmission power increase request from a tester to increase the transmission power of the mobile communication terminal by a predetermined value to the mobile communicati...  
WO/2008/052477A1
A code multiplexing method for High Speed Downlink Shared Channel is provided, when Hybrid Automatic Repeat Request bits combination are processed using 64 quadrature amplitude modulation, the data for combination is written into the mem...  
WO/2008/053930A1
A radio terminal and a radio base station device which can increase the number of terminal stations to which different codes can be assigned when encoding control signals transmitted by a plurality of terminal stations in an uplink for e...  
WO/2008/053895A1
A user terminal device transmits a pilot channel at least at uplink by the single carrier method. The user terminal device includes mapping means. A sub frame is formed by a plurality of short blocks and long blocks. A transmission band ...  
WO/2008/052117A2
An analog multi-gigabit receiver and/or transceiver can be implemented for the reception and demodulation of multi-gigabits quadrature phase shift keying (QPSK) modulated using a CMOS (complementary metal-oxide semiconductor) process. Fu...  
WO2006074587A8
The present invention relates to a device and method for fast signalling based on HARQ Process ID, including a process information handling unit and a fast signalling and HARQ Process ID coding handling unit at the Node B side, and a pro...  
WO/2008/050893A1
A control section (100) measures DPCH_RSCP and DPCH_ISCP of each path, and calculates DPCH_RSCP and DPCH_ISCP of each wireless link. Then, the control section (100) calculates the DPCH_SIR of each wireless link, and calculates difference...  
WO/2008/050152A1
A method of scheduling resources in a communication system comprising a terminal, a base station and a network control entity comprises allocating code space for users of a channel controlled by the base station and allocating the same c...  
WO/2008/047642A1
A UWB transmission apparatus that, in a system using a mixture of amplitude and phase modulation schemes, can support both of the amplitude and phase modulation schemes, while preventing the signal powers of amplitude-modulated signals f...  
WO/2008/047203A2
Various example embodiments are disclosed relating to relay networks or multi-hop networks, and also relating to bandwidth allocation for relay networks. According to an example embodiment, a method of allocating bandwidth in a relay net...  
WO/2008/044273A1
A transmitter apparatus comprises a plurality of code spreaders that are provided for different codes to be spread; a receiving part that selectively distributes transport data to the plurality of code spreaders; a plurality of optical t...  
WO/2008/044629A1
A wireless communication apparatus wherein the performance can be prevented from degrading due to the affection of a frequency offset, while the sequence length of Zadoff-Chu sequence (ZC sequence) being kept long. In this wireless commu...  
WO/2008/044317A1
A relay station transmits a message to a wireless base station which allocates an up direction channel to notify a demand frequency band when receiving one of a signal train out of a predetermined signal group from a terminal device and ...  
WO/2008/044528A1
A transmission power control method in a communication system includes a user terminal which performs transmission power control in a packet radio access and a base station. The method includes: a packet transmission step (S103) in which...  
WO/2008/042874A2
Techniques for facilitating cell search by user equipments (UEs) in a wireless communication system are described. In an aspect, a primary synchronization code (PSC) sequence may be generated based on a Frank sequence and a constant ampl...  
WO/2008/042672A2
This invention is a multiple access communication technique by which a multitude of transmitters communicate with receivers using direct sequence spread spectrum signaling. The direct sequence codes are reused by a large number of simult...  
WO/2008/041916A1
The invention relates to a method in a network node in control of a cell in a cellular telecommunication network for reducing intra-cell interference between user equipments (UE) (10) residing in said cell and performing random access (R...  
WO/2008/041675A1
A user device creates an uplink control channel including at least one of downlink transmission acknowledgment information and channel state information. When no resource is allocated for uplink data channel transmission, the uplink cont...  
WO/2008/042211A2
A joint detection system and associated methods are provided. A joint detection system is configured to perform joint detection of received signals. The joint detection system includes a joint detector accelerator configured to perform a...  
WO/2008/040257A1
A method, a device and a system for end to end tracking are provided. The device including: a tracking platform, a network unit device. The system including: a tracking platform, a soft switch and a network unit device. The method mainly...  
WO/2008/041676A1
In a downlink of OFDM wireless access, a scramble code suitable for each of physical channels is used to randomize the channel. A base station apparatus comprises a scramble-specific-to-base-station generating part (12) that generates a ...  
WO/2008/005507A3
A system for performing adaptative multi-carrier code division multiple access (AMC-CDMA) includes first circuitry and modulator circuitry. The first circuitry determines a channel performance metric for each of a plurality of channels. ...  
WO/2008/038790A1
A sequence allocating method and a sequence allocating apparatus wherein in a system where a plurality of different Zadoff-Chu sequences or GCL sequences are allocated to a single cell, the arithmetic amount and circuit scale of a correl...  

Matches 651 - 700 out of 18,032