1
Balachandran Krishna, Ejzak Richard Paul, Nanda Sanjiv: System and method for incremental redundancy transmission in a communication system. Lucent Technologies, August 25, 1999: EP0938207-A2 (79 worldwide citation)

A system and method for incremental redundancy transmission in a communication system. A time slot is provided having at least one sub-slot with a fixed size, and a data block sized to fit in the sub-slot, a header having a one data block sequence number in the header for the time slot. A parity blo ...


2
Balachandran Krishna, Kadaba Srinivas R, Nanda Sanjiv, Ejzak Richard Paul: System and method for measuring channel quality information. Lucent Technologies, March 3, 1999: EP0899906-A2 (54 worldwide citation)

In a system and method to measure channel quality in terms of signal to noise ratio for the transmission of coded signals over fading channels, a Viterbi decoder metric for the Maximum Likelihood path is used as a channel quality measure. This Euclidean distance metric is filtered in order to smooth ...


3
Walton J Rodney, Nanda Sanjiv: High speed media access control and direct link protocol. Qualcomm Incorporated, Walton J Rodney, Nanda Sanjiv, WADSWORTH Philip R, April 28, 2005: WO/2005/039105 (32 worldwide citation)

Techniques for MAC processing for efficient use of high throughput systems that may be backward compatible with various types of legacy systems are disclosed. In one aspect, a data frame is formed comprising a common portion for transmission in a format receivable by various stations, such as access ...


4
Douglas Knislly, Sabhashis Raha, Nanda Sanjiv: Arq protocol support in variable size data transmission environment using sequence number approach of hierarchical structure. Lucent Technol, January 28, 2000: JP2000-032088 (31 worldwide citation)

PROBLEM TO BE SOLVED: To optimize the protocol balance and to secure the sequence numbering to optimize a PDU(protocol data unit) by transmitting a variable size PDU by means of a hierarchical sequence numbering space approach technique that can support an ARQ protocol in a variable transmission rat ...


5
Nanda Sanjiv, Nandagopalan Saishankar, Abraham Santosh, Walton J Rodney, Ozaki Ernest T: Apparatus and method for wireless communication using directional and omni-directional antennas. Qualcomm Incorporated, Nanda Sanjiv, Nandagopalan Saishankar, Abraham Santosh, Walton J Rodney, Ozaki Ernest T, OGROD Gregory D, December 21, 2007: WO/2007/146685 (28 worldwide citation)

Techniques for using at least one of omni-directional and directional antennas for communication are described. A station may be equipped antenna elements selectable for use as an omni-directional antenna or one or more directional antennas. The station may select the omni-directional antenna or a d ...


6
Leung Kin Kwong, Yeung Kwan Lawrence, Nanda Sanjiv: Operations of cellular communications systems based on mobility and teletraffic statistics collected by mobile units. At & T, March 13, 1996: EP0701382-A1 (27 worldwide citation)

Each mobile unit (108,110) in a cellular communications system (100) accumulates at least one mobility or communications traffic (teletraffic) statistic representative of "typical" operation of the mobile unit within the cellular communications system. The mobile units process or collect the statist ...


7
Ketchum John W, Nanda Sanjiv, Meylan Arnaud, Surineni Shravan K: Method and system for providing beamforming feedback in wireless communication systems. Qualcomm Incorporated, Ketchum John, W, Nanda Sanjiv, Meylan Arnaud, Surineni Shravan K, BACHAND Richard A, January 3, 2008: WO/2008/002972 (27 worldwide citation)

Techniques to support beamforming for stations in a wireless network are described. In one aspect, a station may support beamforming with implicit feedback or explicit feedback by having capabilities to transmit and receive sounding frames, respond to training request by sending a sounding frame, an ...


8
Ejzak Richard Paul, Nanda Sanjiv: Retransmission protocol for wireless communications.. At & T, June 14, 1995: EP0658028-A2 (26 worldwide citation)

The throughput of a radio transmission link is enhanced by arranging a transmitter of data packets so that it responds to the transmission window closing by repeatedly retransmitting all unacknowledged data packets and doing so until the window reopens or a receiver status message acknowledges recei ...


9
Gopalakrishnan Nandu, Kadaba Srinivas R, Ullah Khan Farooq, Nanda Sanjiv, Sunay Mehmet Oguz, Sundaram Ganapathy Subramanian: Method for data rate selection in a wireless communication system. Lucent Technologies, June 12, 2002: EP1213868-A1 (21 worldwide citation)

Data rate determination is provided in a system where the available power fraction and available Walsh codes in each active leg are dynamically changing over time. This method adapts the rate (modulation and coding) based on the combined resource (power & code space) levels seen at each cell. The me ...


10
Doshi Bharat Tarachand, Ejzak Richard Paul, Dravida Subrahmanyam, Nanda Sanjiv, Sawkar Anil, Treventi Philip Andrew: Cellular system architectures supporting data services. Lucent Technologies, October 15, 1997: EP0801513-A1 (17 worldwide citation)

Four stages of digital cellular architecture are presented which reuse much of the existing voice infrastructure while allowing graceful introduction of data and integrated voice/data services over industry standard, low cost platforms. First, a separate ATM-based infrastructure (46) is introduced t ...