Abstract:
Provided are systems, methods and techniques that use an embedded error-detection code within a received communication signal to determine when to stop iterative decoding of the communication signal.
Abstract:
A method and apparatus for enabling more efficient use of plural packet data control channels (PDCCHs) that are associated with a common block of one or more packet data channels in a cellular communication system capable of high-speed data communications. Mobile stations (MSs) within a coverage area of a base station (BS) are categorized in accordance with an expected ability to receive signal transmissions, by determining position, transmission path length, reported channel quality, required reverse transmit power, or otherwise. The plural PDCCHs are preferentially associated with different categories of MSs, and are transmitted at different levels of robustness. The most robust PDCCH reaches all served MSs, and another PDCCH is transmitted at a lower robustness for more efficient utilization. Power may be reduced, and/or data density increased, on a less robust PDCCH.
Abstract:
An apparatus comprising a first circuit, a second circuit and a third circuit. The first circuit may be configured to generate an output signal in response to a first intermediate signal and a second intermediate signal. The second intermediate signal comprises a series of bit pairs. The second circuit comprises a first and a second encoder and may be configured to generate the second intermediate signal in response to a third intermediate signal. The third circuit may be configured to generate the first intermediate signal and the third intermediate signal in response to a first address signal and a second address signal. The third circuit comprises a first multiplexer and a second multiplexer.
Abstract:
A mobile station comprising a decoder circuit and a control circuit. The decoder circuit may be configured to retrieve mask information from a packet data control channel. The control circuit may be configured to (i) determine whether the mask information is valid and (ii) when the mask information is valid, update a current mask of the mobile station with the mask information.
Abstract:
Provided are techniques for the adjustment of antenna transmission weighting values in a communications system that utilizes multiple transmit antennas. A first signal is transmitted on a first multiplex channel via the multiple transmit antennas using a set of transmission weighting values. A second signal is transmitted on a second multiplex channel (different than the first channel) via the multiple transmit antennas using a set of perturbation weighting values. Then, a response that indicates at least one of: whether the set of perturbation weighting values should be added to the set of transmission weighting values and whether the set of perturbation weighting values should be subtracted from the set of transmission weighting values is received from a receiver of the first and second signals. Finally, a new set of transmission weighting values is generated based on the received response.
Abstract:
An apparatus comprising a memory circuit, a test circuit, an interface circuit and a defect handler circuit. The memory circuit may be configured to store and retrieve data in response to (i) a data signal, (ii) a test data signal, (iii) an address signal, (iv) a first control signal and (v) a write signal. The test circuit may be configured to generate the test data signal in response to the address signal. The interface circuit may be configured to generate the control signal in response to (i) the address signal, (ii) a read signal, and (iii) the write signal. The defect handler circuit may be configured to redirect data read from the memory circuit in response to (i) the address signal, (ii) the data signal and (iii) the write signal.
Abstract:
The present invention discloses a system and method for eliminating useless waiting and needless packet retransmission in a radio link protocol (RLP) system having a RLP sender and a RLP receiver with one or more reception buffers, the method comprising checking for any missing packet upon receiving a transmission by the RLP receiver, sending one or more negative acknowledgements (Naks) for every missing packet to the RLP sender by the RLP receiver, retransmitting by the RLP sender only packets requested by one or more negative acknowledgements (Naks) when the RLP sender also receives a transmission suspension request, and receiving transmissions by the RLP receiver after the transmission suspension request has been sent out by the RLP receiver.
Abstract:
A novel frame-matching method and apparatus in a communication system is disclosed. The frame matching method and apparatus of the present invention matches or aligns flexible length data (e.g., symbols) to standard-sized frames without the need for non-standard puncturing. The method and apparatus of the present invention determines how many times to disable symbol puncturing based upon parameters associated with a given data set. The present invention is capable of disabling symbol puncturing for any given data bit, group of data or symbol.