| Patent application number | Description | Published |
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| 20080204319 | Method and system for analog beamforming in wireless communication systems - A method and system for analog beamforming in a wireless system is provided. Analog beamforming involves performing an iterative beam acquisition process based on beam search training, determining transmit and receive beamforming vectors including phase weighting coefficients, based on the iterative beam acquisition process. Each iteration includes estimating the receive and transmit beamforming coefficients alternatively, until the receive and transmit beamforming coefficients converge. | 08-28-2008 |
| 20080225818 | SYSTEM AND METHOD FOR PROCESSING WIRELESS HIGH DEFINITION VIDEO DATA USING REMAINDER BYTES - A method and system for processing high definition video data using remainder bytes is disclosed. In one embodiment, the method includes receiving an information packet having the length of L bytes, wherein L=(M×n×K)+A, and where: M is the depth of an interleaver, n is the number of interleavers, K is an encoding code length and A is the number of remainder bytes with respect to M×n×K bytes, wherein the remainder bytes are located at the end of the information packet, and wherein M×n×K bytes represent M×n codewords. The method further includes converting the A remainder bytes into a plurality of shortened codewords, wherein each of the shortened codewords is shorter in length than each of the M×n codewords. At least one embodiment of the invention provides much lower padding efficiency while improving the decoding performance. | 09-18-2008 |
| 20080225819 | SYSTEM AND METHOD FOR PROCESSING WIRELESS HIGH DEFINITION VIDEO DATA USING A SHORTENED LAST CODEWORD - A method and system for processing high definition video data to be transmitted over a wireless medium is disclosed. In one embodiment, the method includes receiving an information packet having the length of L bytes, wherein L=(M×n×K)+A, and where: M is the depth of an interleaver, n is the number of interleavers, K is an encoding code length and A is the number of remainder bytes with respect to M×n×K bytes, wherein the remainder bytes are located at the end of the information packet. M×n×K bytes represent M×n codewords, wherein the remainder bytes sequentially form a plurality of remainder codewords, and wherein the plurality of remainder codewords comprise a last codeword which is located at the end of the remainder codewords. The method further includes i) shortening the last codeword such that the resultant shortened codeword is shorter in length than each of the remaining codewords of the information packet and ii) adding dummy bits to the outer encoded data so as to meet a predefined size requirement for an outer interleaver. | 09-18-2008 |
| 20080232485 | Method and system for improved power loading by steering and power loading the preamble in beamforming wireless communication systems - A power-loading process for wireless communications is provided. The power-loading process includes parsing data into multiple spatial data streams, beam-steering the spatial data streams and a preamble with both a power loading level and channel eigenvalues, for transmission over a plurality of transmission antennas at a wireless transmitter. The process further includes receiving the transmission streams via receive antennas at a wireless receiver and estimating each equivalent channel based on the received preamble to obtain the CSI. The obtained CSI includes the transmitter power loading information for the receiver. The receiver utilizes the power loading information in the obtained CSI, eliminating the need for the detecting power loading from pilot tones at the receiver. | 09-25-2008 |
| 20090016359 | SYSTEM AND METHOD FOR PROCESSING HIGH DEFINITION VIDEO DATA TO BE TRANSMITTED OVER A WIRELESS MEDIUM - A system and method for processing high definition video data to be transmitted over a wireless medium is disclosed. In one embodiment, the system includes i) at least one convolutional encoder configured to input a plurality of video data streams and output a plurality of encoded data streams, each of the plurality of encoded data streams comprises a plurality of data bits, ii) at least one multiplexer configured to multiplex the plurality of encoded data streams into a multiplexed data stream based on a multiplexing order, wherein the multiplexing order represents the number of data bits multiplexed together at one time and iii) a quadrature amplitude modulation (QAM) mapper configured to perform QAM mapping for the multiplexed data stream. At least one embodiment provides a simple, yet effective, solution using an s-group multiplexing instead of bit-by-bit multiplexing. | 01-15-2009 |
| 20090033555 | Method and system for analog beamforming in wireless communications - A method and system for analog beamforming for wireless communication is provided. Such analog beamforming involves performing channel sounding to obtain channel sounding information, determining statistical channel information based on the channel sounding information, and determining analog beamforming coefficients based on the statistical channel information, for analog beamforming communication over multiple antennas. | 02-05-2009 |
| 20090046807 | Method and system for beamforming communication in wireless communication systems - A method and system for beamforming communication in a wireless communication system that includes a wireless initiator and a wireless responder is provided. A channel matrix is estimated at the responder. The singular value decomposition of the channel matrix yields the right singular matrix, which is further deconstructed into certain components. The right singular matrix components are quantized in a vector fashion and fed back to the initiator for reconstruction and beamforming communication. | 02-19-2009 |
| 20090047999 | Method and system for beamforming communication in wireless communication systems - A method and system for beamforming communication in a wireless communication system that includes a wireless initiator and a wireless responder is provided. A communication channel matrix is estimated at the responder based on training symbols from the initiator. The estimated channel matrix is then deconstructed into certain components, and the matrix components are quantized for feedback to the initiator for channel matrix reconstruction and beamforming communication. | 02-19-2009 |
| 20090058724 | Method and system for analog beamforming in wireless communication systems - A method and system for analog beamforming in wireless communication system, is provided. Analog beamforming coefficients are constructed by performing an iterative beam acquisition process based on beam search training, and determining optimized beamforming weighting coefficients based on the iterative beam acquisition process. | 03-05-2009 |
| 20090086638 | Method and system for wireless communication of data with a fragmentation pattern and low-density parity-check codes - A method and system for wireless data communication is provided, which involves constructing a data payload containing data, partitioning the data payload into fragments, performing LDPC encoding on each fragment, and transmitting the data payload including encoded fragments over a wireless channel. | 04-02-2009 |
| 20090086699 | Method and system for unequal error protection with block codes for wireless transmission - A method and system for wireless data communication is provided, which involves constructing a data payload containing data, partitioning the data payload into fragments, performing block code encoding on each fragment, wherein at least one fragment is encoded at a different coding gain than another fragment, and transmitting the data payload including encoded fragments over a wireless channel. | 04-02-2009 |
| 20090092039 | Method and system for formation and communication of information frames in wireless communication systems - A method and system for wireless transmission of information is provided. Such wireless transmission of information involves constructing a payload unit for data, appending a preamble to the payload unit, wherein the preamble comprises a PHY preamble including a MAC header for the payload unit, and transmitting at least the preamble of the payload unit over a wireless channel. | 04-09-2009 |
| 20090233556 | METHOD AND SYSTEM FOR BEAMFORMING COMMUNICATION IN HIGH THROUGHPUT WIRELESS COMMUNICATION SYSTEMS - 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. | 09-17-2009 |
