Srinivas R Kadaba, Age 56700 Agnew Rd UNIT 132, Santa Clara, CA 95054

6836666, Dec 28, 2004

May 8, 2001

09/851100

Nandu Gopalakrishnan - Chatham NJ
Srinivas R. Kadaba - Chatham NJ
Ashok N. Rudrapatna - Basking Ridge NJ
Ganapathy Subramanian Sundaram - Edison NJ

Lucent Technologies Inc. - Murray Hill NJ

H04Q 720

4554522, 455450, 455522

Efficient data communication in wireless communication system is provided by using centralized control of data communications, such as packet switched services, over the uplink channel (mobile station (MS) to base station (BS)). A multiple access protocol is used where packet data mobile stations make requests for uplink channel resources. The request messages transmitted by the MSs inform the BS of service parameters. Examples of such service parameters are available transmit power at the MS, the amount of data to transmit and Quality of Service (QoS). The BS then processes the received request messages and performs interference management calculations to determine the portion of the BSs receive power budget that can be allocated to the data user requesting service. These calculations are used to control the amount of interference seen at the base station, to assign a data rate to the user and to aid scheduling algorithms in computing service order priorities. Any scheduling algorithm may be used; for example, scheduling may be based on the amount of data to be transmitted, the age of the data or the service priority associated with the mobile station.

6859446, Feb 22, 2005

Sep 11, 2000

09/658084

Nandu Gopalakrishnan - Chatham NJ, US
Niranjan Sudhir Joshi - Randolph NJ, US
Srinivas R. Kadaba - Chatham NJ, US
Achilles George Kogiantis - Madison NJ, US
Ashok N. Rudrapatna - Basking Ridge NJ, US
Mehmet Oguz Sunay - Summit NJ, US
Ganapathy Subramanian Sundaram - Scotch Plains NJ, US
Stanley Vitebsky - Parsippany NJ, US

Lucent Technologies Inc. - Murray Hill NJ

H04B007/216

370335, 4554221

Disclosed is a method of integrating voice and data services onto a same frequency channel using available transmit power information to determine data rates, wherein the available transmit power information indicates an amount of transmit power available for future data transmissions over one or more data channels. In a “distributed” embodiment, a transmitter or base station transmits, via a forward link, an available power message to a receiver or mobile-telephone indicating an amount of available transmit power at some future time t+z. The mobile-telephone performs signal-to-interference measurements corresponding to the received forward link and received interference, and uses such signal-to-interference measurements and the available power message to determine a data rate that can be supported by the mobile-telephone. Preferably, the determined data rate corresponds to a maximum data rate at which a minimum level of quality of service can be achieved at the mobile-telephone. In a “centralized” embodiment, the mobile-telephone transmits the signal-to-interference measurements to the base station, and the base station determines the data rate based on the available transmit power at future time t+z.

6930981, Aug 16, 2005

Dec 6, 2000

09/730637

Nandu Gopalakrishnan - Chatham NJ, US
Srinivas R. Kadaba - Chatham NJ, US
Farooq Ullah Khan - Manalapan NJ, US
Sanjiv Nanda - Clarksburg NJ, US
Mehmet Oguz Sunay - Istanbul, TR
Ganapathy Subramanian Sundaram - Scotch Plains NJ, US

Lucent Technologies Inc. - Murray Hill NJ

H04B007/216

370252, 370335, 370342, 370465

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 method results in maximization of the rate supportable by each cell given their resource constrained situation while meeting the constraints of target packet or frame error rate and orthogonality. Furthermore, improved fast cell selection by the mobile results due to this approach that is based on knowledge of combined resource (power & code space) levels across the cells in the active set.

7158504, Jan 2, 2007

May 21, 2001

09/861967

Srinivas R. Kadaba - Chatham NJ, US
Farooq Ullah Khan - Manalapan NJ, US
Eshwar Pittampalli - Randolph NJ, US
Ashok N. Rudrapatna - Basking Ridge NJ, US
Ganapathy Subramanian Sundaram - Edison NJ, US
Subramanian Vasudevan - Chatham NJ, US
Yunsong Yang - Piscataway NJ, US

Lucent Technologies, Inc. - Murray Hill NJ

H04B 7/212
H04Q 7/20

370348, 370443, 455450, 455509

A multiple mode data communication system and method provides the flexibility to schedule wireless unit transmissions and/or allow the wireless unit to transmit autonomously. In certain embodiments, the wireless units can transmit autonomously and/or use scheduling depending on the data rate, the length of the data packet or the type of data. For example, the wireless units can transmit autonomously at lower data rates and use scheduling at higher data rates. Thus, the multiple mode system enables wireless unit transmissions to be scheduled and/or be transmit autonomously, and wireless units can simultaneously operate in different scheduling and/or autonomous modes. Depending on the embodiment, the system can provide even greater flexibility in operation by permitting wireless units to be scheduled by a single base station, scheduled by a multiplicity of base stations simultaneously or otherwise, via coordination between base stations, scheduled by a multiplicity of base stations in an uncoordinated and asynchronous manner, allowed to transmit autonomously, and/or allowed to transmit autonomously under base station supervision (i. e. rate control/adjustment by the base station). Additionally, a forward and/or reverse link control channel structure is provided which can be used to implement the multiple mode data communication system and/or support various features enabling increased throughput over a shared data channel in a wireless communications system.

7356346, Apr 8, 2008

Jun 28, 2002

10/186007

Nandu Gopalakrishnan - Chatham NJ, US
Srinivas R. Kadaba - Chatham NJ, US
Ashok N. Rudrapatna - Basking Ridge NJ, US
Ganapathy Subramanian Sundaram - Hillsborough NJ, US

Lucent Technologies Inc. - Murray Hill NJ

H04B 7/00

455512, 455513, 455 6713, 455 631

A method of scheduling data communication over an uplink. The method enables two or more users seeking to transmit data over the uplink to be scheduled in response to their path loss. The user having the most attractive determined path loss among the two or more users seeking to transmit data over the uplink us scheduled first. Thereafter, the next user having the next most attractive path loss among the remaining users may be subsequently scheduled if the total noise rise leftover is greater than zero. This process repeats so long as or until the total noise rise leftover is about zero.

7356749, Apr 8, 2008

Feb 2, 2004

10/770028

Francis Dominique - Rockaway NJ, US
Srinivas R. Kadaba - Chatham NJ, US
Hongwei Kong - Denville NJ, US

Lucent Technologies Inc. - Murray Hill NJ

G08C 25/02

714748, 714749

A decision as to whether a mobile terminal has transmitted an ACK, a NACK or a NULL from a received signal at a base station is made by successively eliminating one of the three possible transmitted symbols by sequentially applying decision rules that maximize network throughput by minimizing the sum of the weighted costs of making a decision based on the magnitude of the received signal.

7426196, Sep 16, 2008

Jan 28, 2005

11/046489

Nandu Gopalakrishnan - Chatham NJ, US
Niranjan S. Joshi - Morris Plains NJ, US
Srinivas R. Kadaba - Chatham NJ, US
Ashok N. Rudrapatna - Basking Ridge NJ, US
Ganapathy S. Sundaram - Hillsborough NJ, US

Lucent Technologies Inc. - Murray Hill NJ

H04Q 7/00

370328, 3703954, 37039542, 4554522, 455450

An apparatus and a method for managing resources for efficient packet data transmission. More specifically, there is provided a method for allocating transmission resources in a base station comprising determining a largest supportable packet size for a highest priority user, wherein the determination is based at least partially on the available modulation types, a total number of codes available for packet transmission, a total amount of available transmission power available for packet transmission, and frame durations supported by a base station.

7535839, May 19, 2009

Jun 30, 2005

11/172471

Srinivas R. Kadaba - Chatham NJ, US
Thierry Etienne Klein - Fanwood NJ, US
Kin K. Leung - London, GB
Ganapathy Subramanian Sundaram - Hillsborough NJ, US

Alcatel-Lucent USA Inc. - Murray Hill NJ

G01R 31/08

370230, 370234

In a wireless network or other communication system, admission of users to the system is based on predicted scheduling gain. A scheduler is configured to manage access to network resources for users already admitted to the system. An admission control module is coupled to the scheduler, and determines a predicted scheduling gain of the scheduler under an operating scenario involving admission of at least one additional user to the system. The predicted scheduling gain is processed to generate at least one performance metric which is used to make an admission control decision regarding admission of the at least one additional user to the system.