1
David M Britz, Robert Raymond Miller II, Nemmara K Shankaranarayanan: Secure open-air communication system utilizing multi-channel decoyed transmission. AT&T Intellectual Property II, December 7, 2010: US07848517 (141 worldwide citation)

A secure, open-air communication system utilizes a plurality of “decoy” data signals to hide one or more true data signals. The true data signal(s) are channel hopped with the plurality of decoy data signals to form a multi-channel “scrambled” output signal that is thereafter transmitted in an open- ...


2
Thomas E Darcie, Mary R Phillips, Nemmara K Shankaranarayanan: Arrangement for and method of providing radio frequency access to a switching system. AT&T, John A Caccuro, May 21, 1996: US05519691 (96 worldwide citation)

A cellular communication system provides dynamic allocation of hardware resources and frequency spectrum. The cellular system includes a server which dynamically controls the assignment of radio ports to a first and second group; each group shares hardware resources. Radio ports assigned to a first ...


3
Paul Shala Henry, Zhimei Jiang, Byoung Jo J Kim, Kin K Leung, Hui Luo, Nemmara K Shankaranarayanan: System and method to support networking functions for mobile hosts that access multiple networks. AT&T, October 21, 2008: US07441043 (69 worldwide citation)

An IP-based corporate network architecture and method for providing seamless secure mobile networking across office WLAN, home WLAN, public WLAN, and 2.5G/3G cellular networks for corporate wireless data users. The system includes Internet roaming clients (IRCs), a secure mobility gateway (SMG), opt ...


4
Thomas K Fong, Paul Shala Henry, Kin K Leung, Xiaoxin Qiu, Nemmara K Shankaranarayanan: Method and apparatus for providing high speed services using a wireless communications system. AT&T, May 30, 2000: US06069885 (54 worldwide citation)

A method and apparatus for scheduling transmissions between a plurality of communications sites within a communications system. The communications system provides service to a service area which is divided into sectors. Each sector is assigned a time subframe in a pattern where adjacent sectors use ...


5
Bhavesh N Desai, Nemmara K Shankaranarayanan, David Hilton Shur, Aleksandra Smiljanic, Todd J Totland, Jacobus E van der Merwe, Sheryl Leigh Woodward: Cable data service method. AT&T, January 31, 2006: US06993353 (41 worldwide citation)

A method for sending data from a transmit site to a receive site which includes dividing a transmit data stream having a first bit rate into multiple data streams with each of the multiple data streams having a bit rate which is lower than the first bit rate, transmitting each of the multiple data s ...


6
Kin K Leung, Hui Luo, Nemmara K Shankaranarayanan: E-coupon service for location-aware mobile commerce which determines whether to supply requested e-coupons based on the number of requests received in a processing cycle, and a threshold number of requests required to make expected returns from redeemed coupons greater than advertising fees. AT&T, August 26, 2008: US07418451 (36 worldwide citation)

A conditional e-coupon distribution method distributes e-coupon predefined by sellers to mobile users only if the number of mobile users requesting such e-coupons equals or exceeds a threshold. The method receives a request to browse e-coupons from a mobile user. The method receives the location of ...


7
Kin K Leung, Nemmara K Shankaranarayanan, Arty Srivastava: Method and apparatus for sector based resource allocation in a broadhand wireless communications system. AT&T, June 4, 2002: US06400697 (35 worldwide citation)

A method and apparatus for sector based resource allocation in a broadband wireless communications system. A service region is divided into a plurality of cells, and each cell is divided into a plurality of labeled sectors. Each label is selected to avoid an unacceptable amount of interference from ...


8
Kin K Leung, Hui Luo, Nemmara K Shankaranarayanan: E-coupon service for location-aware mobile commerce which determines whether to supply requested e-coupons based on the number of requests received in a processing cycle, and a threshold number of requests required to make expected returns from redeemed coupons greater than advertising fees. AT&T, February 7, 2006: US06996579 (29 worldwide citation)

A conditional e-coupon distribution method distributes e-coupons predefined by sellers to mobile users only if the number of mobile users requesting such e-coupons equals or exceeds a threshold. The method receives a request to browse e-coupons from a mobile user. The method receives the location of ...


9
Zhimei Jiang, Nemmara K Shankaranarayanan: Channel efficiency based packet scheduling for interactive data in cellular networks. AT & T, May 16, 2006: US07046678 (25 worldwide citation)

The present packet scheduling algorithm gives cellular network operators greater flexibility in adjusting the way resources are allocated among interactive best-effort data users. Best effort data users with different radio link qualities may have different amounts of data delivered to them using th ...


10
Thomas K Fong, Paul Shala Henry, Kin K Leung, Xiaoxin Qiu, Nemmara K Shankaranarayanan: Method and apparatus for providing high speed services using a wireless communications system. AT&T, December 2, 2003: US06657982 (23 worldwide citation)

A method and apparatus for scheduling transmissions between a plurality of communications sites within a communications system. The communications system provides service to a service area which is divided into sectors. Each sector is assigned a time subframe in a pattern where adjacent sectors use ...