Ashok N Rudrapatna

6519462, Feb 11, 2003

May 11, 2000

09/568921

Ming Lu - Hillsborough NJ
Ashok N. Rudrapatna - Basking Ridge NJ
Pengfei Zhu - Morris Plains NJ

Lucent Technologies Inc. - Murray Hill NJ

H04B 426

455453, 455450, 455509, 370329

A method and apparatus are provided for dynamically controlling a high speed wireless communication system to optimize utilization of system resources and thereby increase system throughput. The invention operates to determine an allocation of wireless transmission resources to each user application served by the wireless system in a manner to optimize transmission resources while meeting required QoS criteria for the served user application. After all user applications have been provided a transmission resource allocation in this manner, the total transmission resources so allocated are determined and compared with a ceiling transmission resource level for the wireless system. A portion of the difference between the ceiling and currently allocated transmission resource levels is then made available, according to the invention, to the served user applications in proportion to the initial allocation provided each user application.

6545975, Apr 8, 2003

Apr 19, 1999

09/294165

Charles Robert Giardina - Mahwah NJ
Ashok N. Rudrapatna - Basking Ridge NJ

Lucent Technologies Inc. - Murray Hill NJ

H04J 1100

370208, 370335, 370441, 370342

Quasi-Walsh function systems are developed which allow multiple access as well as spectral spreading for interception and jamming prevention. Mutual interference is minimal due to orthogonal spreading. High signal hiding capability occurs by utilizing a large number of distinct orthogonal codes. An encoding algorithm is presented which allows a simple way of âkeeping trackâ of the different systems of Quasi-Walsh systems as well as determining appropriate values for given users at specified chip values.

6751480, Jun 15, 2004

Dec 1, 2000

09/727896

Achilles George Kogiantis - Madison NJ
Ashok N. Rudrapatna - Basking Ridge NJ
Mehmet Oguz Sunay - Summit NJ

Lucent Technologies Inc. - Murray Hill NJ

H04B 100

4555621, 4554521

A method for increasing the capacity of a communication network by assigning subscribers of the communication network to individual antennas of an antenna array and allowing the antenna array to convey information to the assigned subscribers under the control of a scheduling algorithm. Antennasâunder the control of the scheduling algorithmâin the antenna array are thus able to convey information to different subscribers at different times. The scheduling algorithm determines when to convey information to an assigned subscriber based on channel condition information it receives from the subscribers. The scheduling algorithm also uses the channel condition information to assign certain subscribers to certain antennas.

6801790, Oct 5, 2004

Jan 17, 2001

09/764791

Ashok N. Rudrapatna - Basking Ridge NJ

Lucent Technologies Inc. - Murray Hill NJ

H04B 138

4555621, 4552771, 4555751, 342374

An antenna array comprising at least two groups of antennas where each group comprises at least two pairs of antennas. Each of the pairs in a group contains orthogonally polarized antennas and at least one antenna in a pair is similarly polarized to one antenna in at least another pair in the group. The antenna array further comprises circuitry coupled to the antenna groups to select and activate certain antennas in a group to enable the antenna array to operate in either a beam forming/steering mode, a diversity mode or a MIMO mode or any combination thereof. The antennas in the groups are activated based on the characteristics of the signals being transmitted or received by the antenna array.

6829470, Dec 7, 2004

Apr 8, 2002

10/118648

Achilles George Kogiantis - Madison NJ
Ashok N. Rudrapatna - Basking Ridge NJ
Naresh Sharma - Budd Lake NJ

Lucent Technologies Inc. - Murray Hill NJ

H04B 702

455101, 455 6711, 370206, 355341

A method for allocating data rate to a stream of information to be transmitted over a communication channel of a communication system is provided. Modified union bounds are used to determine the channel characteristic experienced by each of the streams to select their respective data rates from an MCS that can be handled by the communication channel of the communication system.

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.

6952410, Oct 4, 2005

Feb 26, 2001

09/793219

Nandu Gopalakrishnan - Chatham NJ, US
Ashok N. Rudrapatna - Basking Ridge NJ, US

Lucent Technologies Inc. - Murray Hill NJ

H04B007/216

370335, 370342, 370441, 370337

A method of providing an efficient channel structure for a communication system that uses codes to define its communication channels. Available codes form a code space that is equally divided into M tiers based on load conditions; M is an integer equal to 1 or greater. Information is scheduled to be transmitted during a particular time slot and is assigned to a particular tier. The information is transmitted during the scheduled time slot using all of the codes of the assigned tier.