1
Jay Rod Walton, John W Ketchum, Mark Wallace, Irina Medvedev: Resource allocation for MIMO-OFDM communication systems. Qualcomm Incorporated, Dmitry R Milikovsky, Sandip S, Philip Wadsworth, March 28, 2006: US07020110 (234 worldwide citation)

Techniques to schedule terminals for data transmission on the downlink and/or uplink in a MIMO-OFDM system based on the spatial and/or frequency “signatures” of the terminals. A scheduler forms one or more sets of terminals for possible (downlink or uplink) data transmission for each of a number of ...


2
Irina Medvedev, Jay Rod Walton, Mark Wallace: Multiple-input, multiple-output (MIMO) systems with multiple transmission modes. Qualcomm Incorporated, Philip R Wadsworth, Thien T Nguyen, Rupit Patel, March 1, 2005: US06862271 (169 worldwide citation)

Techniques to transmit data on a number of transmission channels in a multi-channel communication system using multiple transmission schemes requiring less channel-state information (CSI). These schemes may include a partial-CSI transmission scheme that transmits a single data stream on each transmi ...


3
John W Ketchum, Mark Wallace, Steven J Howard, Jay Rod Walton: Time-domain transmit and receive processing with channel eigen-mode decomposition for MIMO systems. Qualcomm Incorporated, Philip Wadsworth, Thien T Nguyen, Kent D Baker, July 6, 2004: US06760388 (158 worldwide citation)

Techniques for processing a data transmission at the transmitter and receiver. In an aspect, a time-domain implementation is provided which uses frequency-domain singular value decomposition and “water-pouring” results to derive time-domain pulse-shaping and beam-steering solutions at the transmitte ...


4
John Smee, Jay Rod Walton, Durga Prasad Malladi: Pilot transmission schemes for wireless multi-carrier communication systems. QUALCOMM Incorporated, Thomas R Rouse, Byron Y Yafuso, Ross L Franks, October 9, 2007: US07280467 (140 worldwide citation)

Pilot transmission schemes suitable for use in wireless multi-carrier (e.g., OFDM) communication systems. These pilot transmission schemes may utilize frequency, time, or both frequency and time orthogonality to achieve orthogonality among the pilots transmitted by multiple base stations on the down ...


5
Murali Paravath Menon, John W Ketchum, Mark Wallace, Jay Rod Walton, Steven J Howard: Beam-steering and beam-forming for wideband MIMO/MISO systems. Qualcomm Incorporated, Dmitry Milikovsky, Micky Minhas, Phillip Wadsworth, September 6, 2005: US06940917 (108 worldwide citation)

Techniques to perform beam-steering and beam-forming to transmit data on a single eigenmode in a wideband multiple-input channel. In one method, a steering vector is obtained for each of a number of subbands. Depending on how the steering vectors are defined, beam-steering or beam-forming can be ach ...


6
Bjorn A Bjerke, John W Ketchum, Nagabhushana Sindhushayana, Jay Rod Walton: Rate-compatible LDPC codes. Qualcomm Incorporated, Larry J Moskowitz, April 20, 2010: US07702986 (76 worldwide citation)

Method and apparatus for generating codewords with variable length and redundancy from a single Low-Density Parity-Check (LDPC) code with variable length input words. A mother code for encoding data words is generated based on a parity-check matrix, wherein the mother code is adjusted to reflect the ...


7
Jay Rod Walton, Mark S Wallace, Steven J Howard: Method and apparatus for allocating uplink resources in a multiple-input multiple-output (MIMO) communication system. Qualcomm Incorporated, Philip Wadsworth, Sandip S Minhas, Dmitry R Milikovsky, May 16, 2006: US07047016 (61 worldwide citation)

Techniques to schedule uplink data transmission for a number of terminals in a wireless communication system. In one method, a number of sets of terminals are formed for possible data transmission, with each set including a unique combination of terminals and corresponds to a hypothesis to be evalua ...


8
Irina Medvedev, Jay Rod Walton, John W Ketchum: Reallocation of excess power for full channel-state information (CSI) multiple-input, multiple-output (MIMO) systems. Qualcomm Incorporated, Dmitry Milikovsky, Sandip, Philip Wadsworth, March 28, 2006: US07020482 (44 worldwide citation)

Techniques to allocate the total transmit power to the transmission channels in a multi-channel communication system such that higher overall system spectral efficiency and/or other benefits may be achieved. The total transmit power may be initially allocated to the transmission channels based on a ...


9
Jay Rod Walton, Irina Medvedev: Transmission mode selection for data transmission in a multi-channel communication system. Qualcomm Incorporated, Turocy & Watson, February 8, 2011: US07885228 (27 worldwide citation)

Techniques to select a suitable transmission mode for a data transmission in a multi-channel communication system with multiple transmission channels having varying SNRs. In one method, an SNR estimate is initially obtained for each of multiple transmission channels used to transmit a data stream. A ...


10
Jay Rod Walton, Mark S Wallace, Steven J Howard: Method and apparatus for allocating uplink resources in a multiple-input multiple-output (MIMO) communication system. Qualcomm Incorporated, Philip R Wadsworth, Sandip, Dmitry R Milikovsky, February 27, 2007: US07184743 (18 worldwide citation)

Techniques to schedule uplink data transmission for a number of terminals in a wireless communication system. In one method, a number of sets of terminals are formed for possible data transmission, with each set including a unique combination of terminals and corresponds to a hypothesis to be evalua ...