Karthik C Balu

US Patent:

8649813, Feb 11, 2014

Filed:

Apr 2, 2010

Appl. No.:

12/753635

Inventors:

Nitin K. Tiwari - San Diego CA, US
Rajan Verma - San Diego CA, US
Karthik Balu - San Diego CA, US
Bryant K. Forsgren - San Diego CA, US

Assignee:

QUALCOMM Incorporated - San Diego CA

International Classification:

H04B 7/00

US Classification:

455518, 455517, 455519

Abstract:

A system and method for pre-allocating PTT resources including user/resource credentials at the native PTT gateway are presented. The user status and floor control information can be buffered at the native PTT gateway until the native PTT gateway receives actual resource/end point information from the media handler. Afterwards, the pre-allocation of PTT resources can be correctly mapped to the actual user resources/end point information when the native PTT gateway receives such information from the media handlers and a call is handled.

US Patent:

20090303878, Dec 10, 2009

Filed:

Jun 5, 2008

Appl. No.:

12/133681

Inventors:

Gautam SAVARKAR - San Diego CA, US
Devang Bhatt - San Diego CA, US
Karthik Balu - San Diego CA, US
Rajan Verma - San Diego CA, US

Assignee:

QUALCOMM Incorporated - San Diego CA

International Classification:

H04Q 7/24
H04B 7/00

US Classification:

370235, 455518

Abstract:

A system and method for minimizing call setup latency in a group communication among wireless communication devices by ensuring the requisite amount of communication bandwidth for group member devices that utilize separate communication systems to control communication channels established with each of the wireless communication devices. A group communication server that sets up group communications for wireless communication device members of a communication group communicates with a resource manager resident on a communication system to reserve a predetermined amount of resources, such as bandwidth, for wireless communication devices utilizing that communication system that are members of a communication group. The resource manager communicates the availability to the group communication server of the wireless communication devices utilizing that communication system for group communications only if the predetermined resources are available for a group communication to the wireless communication device.

US Patent:

20100260038, Oct 14, 2010

Filed:

Mar 31, 2010

Appl. No.:

12/751689

Inventors:

CHINMAY S. DHODAPKAR - San Diego CA, US
Vidyadhar Kamath - San Diego CA, US
Karthik Balu - San Diego CA, US

Assignee:

QUALCOMM Incorporated - San Diego CA

International Classification:

G06F 11/00

US Classification:

370216

Abstract:

Methods, systems and devices are provided for restoring a multiple call session. A communication terminal can restore a multiple call session after a fault. A network interface can couple the terminal to a network including multiple access terminals associated with the multiple call session. A request for a state of the multiple call session can be transmitted and received by a server in the network. A response including the state can be received. The multiple call session can be restored based on the state of the multiple call session and other information.

US Patent:

20140295902, Oct 2, 2014

Filed:

Jun 16, 2014

Appl. No.:

14/306057

Inventors:

- San Diego CA, US
Devang Narendra BHATT - Hyderabad, IN
Karthik BALU - San Diego CA, US
Rajan VERMA - San Diego CA, US

International Classification:

H04W 76/00
H04W 28/26
H04W 4/10

US Classification:

455518

Abstract:

A system and method for minimizing call setup latency in a group communication among wireless communication devices by ensuring the requisite amount of communication bandwidth for group member devices that utilize separate communication systems to control communication channels established with each of the wireless communication devices. A group communication server that sets up group communications for wireless communication device members of a communication group communicates with a resource manager resident on a communication system to reserve a predetermined amount of resources, such as bandwidth, for wireless communication devices utilizing that communication system that are members of a communication group. The resource manager communicates the availability to the group communication server of the wireless communication devices utilizing that communication system for group communications only if the predetermined resources are available for a group communication to the wireless communication device.