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Durga Malladi
Durga P Malladi: Method and apparatus for providing uplink signal-to-noise ratio (SNR) estimation in a wireless communication. Qualcomm Incorporated, Thomas R Rouse, Thien T Nguyen, George J Oehling, May 8, 2007: US07215930 (22 worldwide citation)

A method and apparatus for providing uplink signal-to-noise ratio (SNR) estimation in a wireless communication system. A first signal is received over a first channel and a second signal is received over a second channel, where the second signal is received at a higher signal power level than said f ...


2
David Diep, Francesco Grilli: Method and system for group call service. Qualcomm Incorporated, Philip R Wadsworth, Thien T Nguyen, George J Oehling, November 8, 2005: US06963543 (75 worldwide citation)

A method and system for group call services in a CDMA radio access network over a GSM-MAP or ANSI-41 core network are presented. The method and system provide for call setup, call notification, and call termination in the air interface of the CDMA radio access network. The necessary modification to ...


3
John Edward Smee, Nagabhushana Sindhushayana: System and method for received signal prediction in wireless communications system. QUALCOMM Incorporated, George J Oehling, Larry J Moskowitz, Thomas R Rouse, October 7, 2008: US07433384 (24 worldwide citation)

Method and apparatus to compute the combiner coefficients for wireless communication systems for a space-time solution. One embodiment trains the weights on a signal known a priori that is time multiplexed with other signals, such as a pilot signal in a High Data Rate, HDR, system, wherein the signa ...


4
Durga Prasad Malladi, Serge D Willenegger: Method and apparatus for uplink rate selection in the presence of multiple transport channels in a wireless communication system. Qualcomm Incorporated, Philip Wadsworth, Thien Nguyen, George J Oehling, January 9, 2007: US07161916 (17 worldwide citation)

Systems and methods for selecting data rates at which to transmit data over a primary uplink in the presence of one or more secondary uplink channels. One embodiment comprises a method including determining probabilities associated with numbers of attempted transmissions of data, determining the num ...


5
Edward G Tiedemann Jr, Joseph P Odenwalder, Charles E Wheatley III, Roberto Padovani: Method and apparatus for performing fast power control in a mobile communication system. Qualcomm Incorporated, Philip R Wadsworth, Thien T Nguyen, George J Oehling, March 14, 2006: US07013160 (13 worldwide citation)

A method and apparatus for controlling transmission power levels in a mobile communication system. The method provides for a closed-loop power control method. A mobile station provides information on the quality of the signal received from the base station, and the base station responds by adjusting ...


6
Tao Chen: Method and apparatus for multi-channel reverse link outer-loop power control. Qualcomm Incorporated, Philip R Wadsworth, Thien T Nguyen, George J Oehling, March 7, 2006: US07010316 (12 worldwide citation)

In a disclosed embodiment, a maintain and adjust threshold module determines the desired signal to noise and interference ratio for a first channel. Next, a delta computation module produces a threshold delta, which is then added to a base threshold by way of an adder. The resulting sum is the outer ...


7
Tao Chen, Fuyun Ling, Edward G Tiedemann Jr: Method and apparatus for monitoring transmission quality. Qualcomm Incorporated, Philip R Wadsworth, Thien T Nguyen, George J Oehling, November 22, 2005: US06967998 (9 worldwide citation)

In wireless communications, it is necessary to monitor the transmission quality of communications channels to maintain system performance and operation. The invention provides a way of measuring bit error rates in channels at the receiver, without diminishing channel throughput by inserting quality ...


8
Edward G Tiedemann Jr, Daisuke Terasawa, Sandip Sarkar: Method for handoff between an asynchronous CDMA base station and a synchronous CDMA base station. QUALCOMM Incorporated, George J Oehling, Fran├žois A Pelaez, Thomas R Rouse, June 24, 2008: US07391753 (8 worldwide citation)

An improved method for facilitating handoff between an asynchronous and a synchronous base station. A method for determining a pilot channel PN offset of a pilot channel transmitted by a wireless base station. In a first embodiment, the method includes correlating a PN sequence with a received pilot ...


9
Nikolai K N Leung: Method and system for hard handoff in a broadcast communication system. QUALCOMM Incorporated, Philip R Wadsworth, Thien T Nguyen, George J Oehling, February 26, 2008: US07336952 (7 worldwide citation)

A method and system for a handoff in a broadcast communication system is disclosed. A subscriber-assisted handoff is impractical in a broadcast communication system due to e.g., a high signaling load, a difficulty to synchronize the broadcast transmission. On the other hand, the small number of broa ...


10
Edward G Tiedemann Jr: Method and apparatus for transmitting and receiving high speed data using code division multiple access channels. Qualcomm Incorporated, Philip R Wadsworth, Thien T Nguyen, George J Oehling, April 11, 2006: US07027484 (7 worldwide citation)

The present invention describes a spread spectrum communication system wherein the frequency of carriers and the code channels of the carriers or both for transmission to a given remote station user vary in time. This provides for a direct sequence spectrum communications system which changes freque ...