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WO/2003/050653A2 |
Systems and methods for increasing data capacity in communication systems is presented. In one embodiment, line chracteristics aredetermined (930), and a downstream bandwiddth (940) is adaptivelyallocated in respense to the determined li...
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WO/2003/050991A2 |
Systems (figure 1) and methods for improving data transmission are presented in which predefined masks are selected as a function of line conditions. The predefined masks may be time-frequency masks or power spectral density (PSD) masks....
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WO/2003/049323A1 |
The invention provides a method of evaluating a path in a data-receiving system using multi-carrier modulation. A confidence indicator is determined for each data item received so as to provide a stream of confidence indicators parallel ...
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WO/2003/049475A1 |
In the present invention, carrier pairs of one uplink carrier (UL1, UL2) and one downlink carrier (DL1, DL2) are provided with a flexible duplex frequency separation distance in a cellular communication system (1) operating according to ...
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WO/2003/044979A1 |
The present invention relates to methods and arrangements in a communication system for dynamically allocating communication system frequency system after cross-talk interference between transmission medias CH-X, CH-Y used for upstream a...
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WO/2003/043239A1 |
A method in a code division multiple access communication system having network infrastructure and a plurality of mobile terminals, including transmitting (210) composite signal comprising a synchronization signal and another non-orthogo...
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WO/2003/039036A1 |
A system for managing bandwidth in a content distribution system is provided. The system can be incorporated into the content head end of the content distribution system. The system includes a program multiplexer, a multi-channel modulat...
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WO/2003/038641A1 |
An admission control system (119) includes a storage device (100), and a buffer memory (113) interconnected to the storage device (100). An admission controller (121), interconnected to the buffer memory (113), includes means for measuri...
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WO/2003/038820A1 |
The present invention provides a data-update apparatus (1003) comprising: a channel-selection means (1004) that selects and outputs part of the channels of the input signal; a detection means (1006) that detects the data that is embedded...
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WO/2003/032272A1 |
In a method of operating a remote control system and in such a system comprising an RF transmission and receiving system and an IR transmission device the sub-carrier information of the IR signal is transmitted in the RF signal in a sign...
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WO/2003/028255A2 |
A method of data transmission according to one embodiment of the invention includes encoding a set of data values to produce a corresponding series of ordered n-tuples. The method also includes transmitting, according to the series of or...
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WO/2003/028206A1 |
The invention relates to a multiband receiver for simultaneous reception of a plurality of RF signals (RF1, RF2) with partially different carrier frequencies. An RF/IF-converter is provided with a plurality of local oscillators (LO1, LO2...
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WO/2003/026242A1 |
A method and circuitry for implementing digital multi-channel demodulation circuits (figs 2 and 6). More particularly, embodiments of the present invention provide a digital multi-channel demodulator circuit (250, 650). The demodulator i...
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WO/2003/024007A1 |
A virtual overlay network (VON) (200) over an internetwork is dynamically maintained through inter-node communications (204) that include messages adapted to establish node neighbors (202A --- 202H), the messages being passed over tunnel...
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WO/2003/024047A2 |
A Fourier transform is applied (205) to a received multiple-carrier phase-modulated signal. The output of the transform includes real and imaginary elements that are associated with the multiple carriers. These elements are processed to ...
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WO/2003/023639A1 |
A communication protocol includes one or more messages passed between Web routers (202a-202h) over a reliable transmission protocol used for inter-Web router communication. These messages include information that allows the Web routers (...
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WO/2003/023607A1 |
An address of a server (406) that should supply an information object or service to a requestor is returned in response to a request therefor. The address (416) of the server (406) that is returned is an optimal server (406) selected acc...
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WO/2003/024078A2 |
The invention provides a DRR protocol that uses the Z-bit signaling channel that is robust, enables activating and deactivating bit synchronous PCM voice timeslots in a very short period of time, supports the ability to handle multiple s...
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WO/2003/021914A2 |
In response to a request to establish video communication between a video−enabled (102) (e.g., videophone) and non−video−enabled (124) (e.g., cellular telephone) communication device, two−way audio communication is established be...
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WO/2003/019832A1 |
In a mobile body communication system, a multi−carrier CDMA reception apparatus corrects soft decision data by using an amplitude component of a channel estimation value, performs turbo decoding, selects an encoding ratio according to ...
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WO/2003/019835A1 |
A method and apparatus to transmit data between a communication network (114) and a mobile station (154) just before prior to the mobile station switching from a fast data rate mode, such as digital mode, to a slow data rate mode, such a...
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WO/2003/017556A2 |
Determination of the location of an error condition or a failure includes receiving at a network interface a first framed digital signal from customer premises equipment (410), and determining whether the first framed digital signal indi...
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WO/2003/017541A1 |
A variable size FIFO memory (13) is provided by the use of head (17) and tail (16) FIFO memories operating at a very high data rate and then an off chip buffer memory (18), for example, of a dynamic RAM type, which temporarily stores dat...
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WO/2003/015335A1 |
A method and a stage (60) for estimating channel coefficients in a multi carrier system operating in accordance with a block-code based transmit diversity scheme, in which a data content of a code matrix is multiplexed in a frequency dom...
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WO/2003/013050A1 |
The invention relates to a method for data communication between a single-carrier and a multi-carrier system. According to the invention, a received single-carrier signal is spectrally scanned by the multi-carrier system which decides up...
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WO/2003/010910A1 |
A distributed block frequency converter that combines multiple channel signals into a combined radio frequency (RF) signal suitable for transport via selected media. The converter includes combiners (501A, 501B) that each combine at leas...
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WO/2003/009519A1 |
The invention concerns a method for receiving a multicarrier signal consisting of a plurality of carrier frequencies, using at least two reception channels supplied with data flows, each of said channels routing the same source data, eac...
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WO/2003/009081A2 |
The present invention relates to a method and a demodulator for processing a Fast Fourier Transform using data blocks. The invention is characterized in that it comprises a Fast Fourier Transform coprocessor (FFT P) and a digital signal ...
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WO/2003/005652A1 |
A wireless communication system 103 configured to communicate using a mixed waveform configuration 301. The mixed waveform includes a first portion 2101 modulated according to a single-carrier scheme with a preamble 303 and header 305 an...
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WO/2003/005623A2 |
A method for allocating protection path resources including defining a working path (200) and obtaining a link vector for each of a plurality of protection paths is provided. The link vector includes a plurality of link vector elements. ...
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WO/2003/005740A2 |
A burst configuration (301) for wireless communications includes a first portion (2101) that is modulated according to a single−carrier modulation scheme and a second portion (2103) that is modulated according to a multi−carrier modu...
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WO/2003/001710A2 |
A communication system (1) is described in a possible embodiment comprising a main transmitter (TR) having two or more series arrangements of at least a digital signal processor (6) and a down sampler (7) coupled to the band pass filter ...
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WO/2002/102043A1 |
Through the use of a variable state length initialization, both the transmitter and the receiver of a multi carrier communication system can have control of the length of one or more initialization states. A transmitter sends information...
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WO/2002/101951A2 |
Techniques for Walsh space assignment are disclosed. In one aspect, a list of Walsh functions is maintained in the base station (104) and mobile stations (106). A Walsh space indicator is transmitted to indicate which of the Walsh functi...
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WO/2002/101962A2 |
In one disclosed embodiment, an input bit stream (110) is supplied to a trellis code block (102) . For example, the trellis code block can perform convolutional coding using a rate 6/7 code. The output of the trellis code block is then m...
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WO/2002/102102A1 |
A network has a plurality of antennas (12) RF or optically coupled over the network to a plurality of base stations (14). The base stations are configured to provide cellular transmission. At least a portion of the plurality of base stat...
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WO/2002/099590A2 |
An improved switching device is provided. The switching device comprises a switching matrix (102) and a cross-connection controller (104). The switching matrix (102) receives a quantity of data wherein the quantity of data includes a plu...
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WO/2002/100125A1 |
A method of triggering IF or IS handover between two WCDMA carriers or a WCDMA carrier and a GSM carrier. Six triggering conditions are used to initiate the search for an alternative network connection by starting the handover measuremen...
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WO/2002/098067A1 |
The invention relates to a data transmission system comprising a base station (B) and at least one mobile station (Mi). Data packets (P12) are exchanged between the base station (B) and the mobile station (Mi) according to a time-slot di...
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WO/2002/098161A1 |
The present invention discloses a carrier selection method for reducing interferences between mobile stations (11, 12) and/or base stations (21, 22). A measure associated with a probability for a mobile station (11), having access to at ...
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WO2001022628A9 |
Frequency-dependent gain effects in an optical fiber communications system, such as fiber dispersion, may be compensated. A number of low-speed channels is to be transmitted across an optical fiber communications system. Each low-speed c...
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WO/2002/091660A1 |
A method and system for communication a clock signal over an optical link includes receiving a multimodulated optical information signal incuding non-intensity modulation for a data signal and intensity modulation for a clock signal. The...
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WO/2002/084935A1 |
The invention relates to methods for determining the separate radio frequency gains for carriers in a multi-carrier transmitter of a radio transmission unit of a radio communications system. In order to enable a simple and accurate estim...
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WO2001026263A9 |
Data is transmitted across an optical fiber communications system by modulating a stream of data into a stream of symbols (e.g., by using QAM modulation) and then frequency division multiplexing a number of symbol streams into a single h...
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WO/2002/075486A2 |
A method for communication between a first device and a second device (212), wherein the communication occurs across a fabric (210) and the first device (202) is coupled to the fabric (210) by a first gateway (208) and the second device ...
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WO/2002/073869A1 |
Multiplexing Method in a Multi Carrier Transmit Diversity SystemThe invention relates to a method of multiplexing data words in a multicarrier transmit diversity system. The method comprises the step of generating a plurality of data blo...
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WO2002054660B1 |
Equalising methods for digital transmission, e.g. trellis-based methods, generally presuppose a disturbance caused by a white noise. In mobile radiotelephony or during cable transmission, an additional disturbance often occurs due to int...
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WO/2002/073867A2 |
In a wireless communication system (10) in a method and apparatus for inhibiting data transmissions during a data service outage at the access terminal (16). The access terminal (16) transmits an outage indicator to the access network (1...
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WO/2002/071706A1 |
A method for providing telecommunications services in a telecommunications network (10, 11, 12, 13). A telecommunications service provider monitors data relating to communications initiation criteria for at least two communicants (27, 28...
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WO/2002/071635A1 |
The invention relates to a transmitting device limiting the out-of-band interferences. The modulation is done with or without inversion of the spectrum (Fig. 4A or 4B). Next, frequency transposition is done in supradyne or infradyne fash...
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