Karthik Anantharaman

US Patent:

8565765, Oct 22, 2013

Filed:

Dec 4, 2008

Appl. No.:

12/328576

Inventors:

Karthik Anantharaman - San Diego CA, US
James A. Hutchison - San Diego CA, US
Bryan Gurganus - San Diego CA, US
Parag Mohan Kanade - San Diego CA, US

Assignee:

QUALCOMM Incorporated - San Diego CA

International Classification:

H04W 4/02

US Classification:

4554352, 4554321, 455433, 4554351, 4554353

Abstract:

An apparatus and method for identifying a serving country using at least one system specific parameter comprising extracting the at least one system specific parameter from a forward link signal; determining whether the at least one system specific parameter maps to a unique country; and identifying the serving country for a call.

US Patent:

20090059845, Mar 5, 2009

Filed:

Jul 28, 2008

Appl. No.:

12/181116

Inventors:

Rotem Cooper - San Diego CA, US
Aamod Khandekar - San Diego CA, US
Michael Mao Wang - San Diego CA, US
Karthik Anantharaman - San Diego CA, US

Assignee:

QUALCOMM Incorporated - San Diego CA

International Classification:

H04W 48/18

US Classification:

370328

Abstract:

Techniques for performing system selection and acquisition are described. In one design, a terminal may obtain at least one system record for at least one system utilizing orthogonal frequency division multiplexing (OFDM) or single-carrier frequency division multiplexing (SC-FDM). Each system record may include system identification information for an associated system and an index for an associated acquisition record. The terminal may also obtain at least one acquisition record for the at least one system. Each acquisition record may include at least one value for at least one configurable system parameter, e.g., FFT size, cyclic prefix length, number of guard subcarriers, etc. The terminal may perform acquisition for the at least one system in accordance with the at least one system record and the at least one acquisition record. The system and acquisition records may be stored in a Preferred Roaming List (PRL) or a Most Recently Used (MRU) list.

US Patent:

20110096697, Apr 28, 2011

Filed:

Oct 28, 2009

Appl. No.:

12/607743

Inventors:

Karthik Anantharaman - San Diego CA, US
Parag M. Kanade - San Diego CA, US

Assignee:

QUALCOMM Incorporated - San Diego CA

International Classification:

H04L 12/28

US Classification:

370254

Abstract:

A wireless communication device configured for automatic selection of geographic specific behavior is described. The circuitry is configured to receive a message with system information from the network that is mandatorily sent from a base station. The circuitry is also configured to determine the geographic area from the system information using a lookup table.

US Patent:

20120129487, May 24, 2012

Filed:

May 18, 2011

Appl. No.:

13/110836

Inventors:

Bharath Narasimha Rao - San Jose CA, US
Madhusudan Chaudhary - Sunnyvale CA, US
Karthik Anantharaman - Cupertino CA, US

Assignee:

Apple Inc. - Cupertino CA

International Classification:

H04M 11/04

US Classification:

4554042

Abstract:

A current location of a mobile system in a wireless network can be determined by using information provided by a base station in communication with the mobile system. The information can include a system identifier (SID) table and a local time offset (LTM_OFF) value and a daylight savings time (DAYLT) value. The SID table is used to provide a mobile country code (MCC) associated with a country in which the mobile device is located. The LTM_OFF value is used to provide a range of longitude values in which the mobile device is located. The current location of the mobile device is based upon at least the range of longitude values and the current country. The current location is used to build an optimized scan list that is used, in turn, to identify and acquire access to the preferred system by a mobile device.

US Patent:

20120129520, May 24, 2012

Filed:

May 18, 2011

Appl. No.:

13/110840

Inventors:

Bharath Narasimha Rao - San Jose CA, US
Madhusudan Chaudhary - Sunnyvale CA, US
Karthik Anantharaman - Cupertino CA, US

Assignee:

Apple Inc. - Cupertino CA

International Classification:

H04W 24/00
H04W 4/02

US Classification:

4554323, 4554561

Abstract:

A current location of a mobile system in a wireless network can be determined by using information provided by a base station in communication with the mobile system. The location information can be used to index a GEO Locate Table to determine a list of SIDs to populate an optimized scan list. The optimized scan list being used for system selection.

US Patent:

20120129548, May 24, 2012

Filed:

May 18, 2011

Appl. No.:

13/110835

Inventors:

Bharath Narasimha Rao - San Jose CA, US
Madhusudan Chaudhary - Sunnyvale CA, US
Karthik Anantharaman - Cupertino CA, US

Assignee:

Apple Inc. - Cupertino CA

International Classification:

H04W 24/00

US Classification:

4554561

Abstract:

A current location of a mobile system in a wireless network can be determined by using information provided by a base station in communication with the mobile system. The information can include a system identifier (SID) table and a local time offset (LTM_OFF) value and a daylight savings time (DAYLT) value. The SID table is used to provide a mobile country code (MCC) associated with a country in which the mobile device is located. The LTM_OFF value is used to provide a range of longitude values in which the mobile device is located. The current location of the mobile device is based upon at least the range of longitude values and the current country.

US Patent:

20120309397, Dec 6, 2012

Filed:

Jun 3, 2011

Appl. No.:

13/153253

Inventors:

Bharath Narasimha RAO - San Jose CA, US
Karthik ANANTHARAMAN - Cupertino CA, US
Madhusudan CHAUDHARY - Sunnyvale CA, US

Assignee:

Apple Inc. - Cupertino CA

International Classification:

H04W 36/14

US Classification:

455437

Abstract:

The quality of a wireless data connection is used to identify a suitable radio access network on which a wireless multi-mode device camps.

US Patent:

20130016632, Jan 17, 2013

Filed:

Jan 11, 2012

Appl. No.:

13/347925

Inventors:

Syed A. Mujtaba - Santa Clara CA, US
Madhusudan Chaudhary - Sunnyvale CA, US
Thanigaivelu Elangovan - Santa Clara CA, US
Karthik Anantharaman - Sunnyvale CA, US
Weiping Dou - San Jose CA, US
Isabel G. Mahe - Los Altos CA, US

International Classification:

H04W 52/02
H04B 1/56
H04B 1/44
H04L 5/14

US Classification:

370275, 370311, 370297, 455 82

Abstract:

A wireless electronic device having first and second baseband processors is provided. In one suitable arrangement, radio-frequency power splitters and adjustable low noise amplifiers may be form in the receive paths. The use of power splitters allow signals associated with the first and second baseband processors to be received in parallel. In another suitable arrangement, radio-frequency switches are used in place of the power splitters. The states of the switches may be controlled using at least one of the first and second baseband processors. The use of switches instead of power splitters requires that wake periods associated with the first baseband processor and wake periods associated with the second baseband processor are non-overlapping. To ensure minimal wake period collision, a wake period associated with the second baseband processor may be positioned at a midpoint between two successive wake periods associated with the first baseband processor.