Abstract: Devices and methods for processing wireless high definition video data to be communicated in an uncompressed format over a wireless medium is disclosed. In one embodiment, an encoder includes a first outer encoder that encodes a first portion of a video data stream. A second outer encoder encodes a second portion of the video data stream. A first parser parses the first encoded data stream into first sub-video data streams. A second parser parses the second encoded data stream into second sub-video data streams.

Abstract: In accordance with an embodiment of the present invention, a method for providing wireless communication system includes receiving a reference signal from each base station of a plurality of base stations serving a mobile station. The received reference signals are measured to compute a single cell feedback matrix and a combining matrix for each channel between the plurality of base stations and the mobile station. A channel state information is generated having information about the combining and the single cell feedback matrices. The channel state information is transmitted to the plurality of base stations.

Abstract: A system and method for relay node flow control and/or congestion control in a wireless communications system are provided. A method for relay operation includes determining a buffer status of a buffer for data to be transmitted on a communications channel allocated from network resources controlled by a communications controller, computing buffer status information based on the buffer status, and transmitting the buffer status information to the communications controller.

Abstract: A system and method for reusing existing directional information to configure antennas in a wireless network is disclosed. The method includes retrieving existing directional information, the existing directional information having been established in a previous antenna training session with a receiver. The method further includes performing a signal-to-noise ratio (SNR) estimation procedure comprising: transmitting an SNR estimation probe message to the receiver via a directional antenna tuned with the existing directional information, and determining whether an estimated SNR value associated with the SNR estimation probe message is equal to or greater than a threshold SNR value. The method further includes transmitting a data message to the receiver via the directional antenna tuned with the existing directional information if it is determined that the estimated SNR value is equal to or greater than the threshold SNR value.

Abstract: A system and method for wireless communications with codebook quantization are provided. A method for communications device operations includes estimating a channel between a controller and a mobile device, generating channel state information from the channel estimate, quantizing the channel state information by selecting a codeword from a rank n codebook based on a codeword selection mechanism, where n is a non-negative integer value, transmitting an index corresponding to the selected codeword and receiving a transmission from the controller. The transmission is precoded based on the index. The rank n codebook includes 2K codewords with each codeword comprising n columns of a transformed base matrix of dimension Nt×Nt, where K is a positive integer number representing a number of bits in the rank n codebook, and Nt is a number of transmit antennas at the controller.

Abstract: Disclosed are various embodiments involving a window searcher for cell measurement. A window search is configurable and scalable as to a number of scrambling codes to be searched in parallel over a window span for each scrambling code. A received signal is descrambled. A coherent accumulation is performed on the descrambled received signal at a first subchip resolution to produce a coherent accumulation result. The coherent accumulation result is interpolated to a second subchip resolution. A non-coherent accumulation is performed on the descrambled received signal at the second subchip resolution based at least in part on the interpolated coherent accumulation result.

Abstract: A method and system for transmitting video information from a sender to a receiver over a wireless channel, is provided. Video information bits are placed into multiple data packets, and transmitted in a burst sequence from a sender to a receiver over a wireless channel in a first time frame. Transmission of each data packet is separated from transmission of the next data packet by an inter-frame time period which is shortened by a channel switching duration. Then, selected video information bits are retransmitted to from the sender to the receiver in a second time frame.

Abstract: A method and system for beamforming communication in high throughput wireless communications. Analog beamforming involves constructing analog beamforming coefficients for beamforming communication on a wireless channel. Constructing analog beamforming coefficients includes selecting a signal tap from a multi-tap wireless channel for beamforming communication, wherein the selected signal tap has a higher signal quality relative to other signals taps, and determining beamforming coefficients for the selected tap by iterative acquisition of the coefficients based on power iteration.

Abstract: A system and method for providing spatial reuse in a wireless network for communicating compressed and uncompressed audio/video is disclosed. A bandwidth reservation request for data communication with a receiver to a coordinator is transmitted. A first response indicating availability of the receiver for the data communication is received. A channel is listened to by a station for channel busy indication (CBI) messages transmitted by other stations in the wireless network. A local channel occupation report comprising data indicative of one or more time periods during which one or more other stations in the wireless network are scheduled to transmit data messages is transmitted to the coordinator. A second response comprising data indicative of one or more allocated channel time slots is received. Audio and/or video (A/V) data is transmitted to the receiver during the allocated channel time slots.

Abstract: Method and system for transmission of uncompressed video information from a sender to a receiver over wireless channels are disclosed. For example, according to one embodiment, when channel conditions (e.g., noise or interference) worsens, one or more least significant bits (LSB) of pixel data are not transmitted to save bandwidth for more efficient transmission. Furthermore, the remaining one or more of the most significant bits (MSB) of the pixel data are transmitted with coding and/or modulation schemes that provides extra error protection, relative to what is needed in regular channel conditions.

Abstract: A system and method of performing a beam discovery between a device and a plurality of other devices in a wireless network is disclosed. Sector training sequences to a plurality of other devices are transmitted via a transmit directional antenna having a set of transmit sectors. A plurality of feedback messages are received from the plurality of other devices, where the plurality of feedback messages are indicative of optimum transmit sectors that have been determined at the other devices based at least in part on the sector training sequences. Beam training sequences are transmitted to the plurality of other devices via the transmit directional antenna. A plurality of feedback message indicative of optimum transmit beam directions within the optimum transmit sectors are received from the plurality of other devices.

Abstract: A system and method for generating a number of candidate beamforming vectors for transmission of high definition video data over a wireless medium is disclosed. In one embodiment the system comprises a memory configured to store a plurality of candidate beamforming vectors and a processor for executing software configured to i) determine the number (N) of transmitter antennas and the number (Q) of candidate beamforming vectors to be constructed, ii) provide a discrete Fourier transform (DFT) matrix comprising Q rows and Q columns, iii) select N rows of the DFT matrix, and iv) generate an abridged matrix using the selected N rows, wherein each column of the abridged matrix is configured to be used as a candidate beamforming vector for transmission of a high definition video data signal.

Abstract: A method and system for generating a number of candidate beamforming vectors for transmission of data over a wireless medium, is provided. One implementation involves determining the number (N) of transmitter antennas; determining the number (n) of candidate beamforming vectors to be constructed as an algebraic function of N; providing a Fourier transform matrix W comprising (n+1) rows and (n+1) columns; selecting N rows from the Fourier transform matrix W; and generating an abridged matrix using the selected N rows, wherein each column of the abridged matrix is configured to be used as a candidate beamforming vector for transmission of a data signal, such that the abridged matrix comprises a N×n sub-matrix of the Fourier transform matrix W.

Abstract: A system and method of training antennas for two devices having different types of directional antennas in a wireless network is disclosed. The method includes transmitting a plurality of estimation training sequences from a transmit directional antenna to a receive directional antenna. The length of at least one of the plurality of training sequences is adapted to a number of antenna elements at one of the transmit and receive directional antennas. The method further includes transmitting data to the receiver via the transmit directional antenna tuned with an antenna parameter that is selected based at least in part on the plurality of estimation sequences.

Abstract: Devices and methods for processing wireless high definition video data to be communicated in an uncompressed format over a wireless medium is disclosed. In one embodiment, an encoder includes a first outer encoder that encodes a first portion of a video data stream. A second outer encoder encodes a second portion of the video data stream. A first parser parses the first encoded data stream into first sub-video data streams. A second parser parses the second encoded data stream into second sub-video data streams.

Abstract: A system and method for wireless communications with codebook adaptation with low feedback overhead are provided. A method for controller operations includes receiving a first channel information from a communications device, estimating channel statistics based on the first channel information, adapting a codebook using the channel statistics, and receiving a second channel information from the communications device. The method also includes constructing a precoding matrix from the second channel information and the adapted codebook, and transmitting information precoded by the precoding matrix to the communications device.

Abstract: A method and system for acquiring beamforming vectors using multiple spreading sequence spreading gains is disclosed. One embodiment of the invention allows time and power to be saved by spreading a training sequence with spreading sequences of different gains in different iterations of an iterative beamforming acquisition procedure.

Abstract: A system and method for processing uncompressed high definition video data to be transmitted over a wireless medium is disclosed. In one embodiment, the system includes i) a plurality of convolutional encoders configured to input a plurality of video data streams and output a plurality of encoded data streams, respectively, wherein each data stream includes a plurality of data bits, ii) a group multiplexer configured to multiplex the plurality of encoded data streams into a multiplexed data stream, wherein the group multiplexer is further configured to multiplex a plurality of data bits together at one time and iii) a circulant bit interleaver configured to receive an m×n data stream block having n columns and m rows or convert the multiplexed data stream to an m×n data stream block, wherein the m×n data stream block comprises m×n data bits, and wherein the bit interleaver is further configured to interleave the received data bits diagonally and in a circulant manner with respect to the m×n block.

Abstract: A system for processing wireless high definition video data to be transmitted in an uncompressed format over a wireless medium is disclosed. In one embodiment, the system includes i) a Reed Solomon (RS) encoder configured to encode a video data stream, ii) a parser configured to parse the RS encoded data stream into a plurality of sub-video data streams, iii) a plurality of convolutional encoders configured to encode in parallel the plurality of sub-video data streams so as to create a plurality of encoded data streams and iv) a multiplexer configured to input the plurality of encoded data streams and output a multiplexed data stream, wherein the multiplexed data stream is transmitted. One embodiment of the invention provides strong error protection for data communications at very high throughput, and makes parallel Viterbi decoding implementation easier at the receiver side.

Abstract: A system and method for multi-stage antenna training of beamforming vectors is disclosed. In one embodiment, the method comprises a method of acquiring a beamforming pattern in a wireless communication system, the method comprising receiving a first plurality of signals having different transceiver sector patterns, measuring first indicators of link quality corresponding to the first plurality of signals, selecting at least one transceiver sector pattern based on the first indicators of link quality, receiving a second plurality of signals having different transceiver beam patterns, each transceiver beam pattern associated with the selected at least one transceiver sector pattern, measuring second indicators of link quality corresponding to the second plurality of signals, and selecting at least one transceiver beam pattern based on the second measures of link quality.