1
Durga Malladi
Alkinoos Hector Vayanos, Durga P Malladi, Sai Yiu Duncan Ho: Data delivery in conjunction with a hybrid automatic retransmission mechanism in CDMA communication systems. QUALCOMM Incorporated, Philip R Wadsworth, Thien T Nguyen, Kent D Baker, May 31, 2005: US06901063 (103 worldwide citation)

Techniques for delivering data recovered by a HARQ entity in proper order to higher layers in a CDMA system. In a method, packets are received from the HARQ entity by the re-ordering entity and missing packets among the received packets are detected. Packets may be transmitted in a sequential order ...


2
Durga Malladi
Durga P Malladi, Alkinoos Hector Vayanos: Mitigation of link imbalance in a wireless communication system. Qualcomm Incorporated, Kent D Baker, Rupit Patel, Thomas R Rouse, April 1, 2008: US07352722 (25 worldwide citation)

Techniques to mitigate the effects of link imbalance for the uplink between a terminal (or UE) and multiple base stations (or Node Bs). In one aspect, the serving base station (i.e., the one designated to transmit packet data to the terminal) monitors the uplink received SNR for each terminal design ...


3
Mark Wallace, Jay R Walton, Ahmad Jalali: Method and apparatus for measuring reporting channel state information in a high efficiency, high performance communications system. Qualcomm Incorporated, Philip R Wadsworth, Kent D Baker, Kyong Macek, October 29, 2002: US06473467 (634 worldwide citation)

Channel state information (CSI) can be used by a communications system to precondition transmissions between transmitter units and receiver units. In one aspect of the invention, disjoint sub-channel sets are assigned to transmit antennas located at a transmitter unit. Pilot symbols are generated an ...


4
Roberto Padovani, Paul E Bender, Peter J Black, Matthew S Grob, Jurg K Hinderling, Nagabhushana T Sindhushayana, Charles E Wheatley III: Method and apparatus for high rate packet data transmission. Qualcomm Incorporated, Philip R Wadsworth, Kent D Baker, Sandra L Godsey, June 3, 2003: US06574211 (505 worldwide citation)

In a data communication system capable of variable rate transmission, high rate packet data transmission improves utilization of the forward link and decreases the transmission delay. Data transmission on the forward link is time multiplexed and the base station transmits at the highest data rate su ...


5
Jay R Walton, Mark Wallace, Jack Holtzman, Franklin P Antonio: Method and apparatus for controlling transmissions of a communications systems. Qualcomm Incorporated, Philip R Wadsworth, Kent D Baker, Thomas R Rouse, December 10, 2002: US06493331 (252 worldwide citation)

In some aspects, each cell in the communications system can be designed to operate in accordance with a set of back-off factors that identify the reductions in peak transmit power levels for the channels associated with the back-off factors. The back-off factors are defined to provide the required p ...


6
Samir S Soliman: Method and apparatus for reducing pilot search times utilizing mobile station location information. Qualcomm Incorporated, Philip R Wadsworth, Kent D Baker, S Hossain Beladi, April 1, 2003: US06542743 (209 worldwide citation)

A method and apparatus for conducting a pilot signal search in a wireless communications network. The location of a mobile is determined within the network. This location is then used in determining search window sizes and other search parameter information that is used to search all pilot signals i ...


7
Ramin Rezaiifar, Yu Cheun Jou, Edward G Tiedemann Jr: Channel structure for communication systems. Qualcomm Incorporated, Philip Wadsworth, Kent D Baker, Thomas R Rouse, April 23, 2002: US06377809 (190 worldwide citation)

An improved channel structure for use in communication systems is disclosed. The channel structure utilizes two sets of physical channels, one for the forward link and another for the reverse link. The physical channels include data channels and control channels, and the data channels are further di ...


8
Tao Chen: Method and apparatus for power adaptation control in closed-loop communications. Qualcomm, Russell B Miller, Sean S English, Kent D Baker, November 9, 1999: US05982760 (174 worldwide citation)

The present invention provides a method and apparatus for providing improved power control in a closed-loop communication system. A base station monitors a quality of a feedback link between it and a mobile station under a variety of methods. When a quality of the feedback link becomes unacceptable, ...


9
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 (162 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 ...


10
Francesco Grilli, Serge Willenegger: Method and apparatus for measuring timing of signals received from multiple base stations in a CDMA communication system. Qualcomm Incorporated, Philip R Wadsworth, Kent D Baker, S Hossain Beladi, February 24, 2004: US06697629 (152 worldwide citation)

Techniques to more accurately measure the arrival times of transmissions received at a remote terminal from a number of base stations. In one aspect, unassigned finger processors are used to process and measure the arrival times of transmissions from base stations not in the active set. In another a ...