Jun S Lin

US Patent:

8526946, Sep 3, 2013

Filed:

Jul 10, 2012

Appl. No.:

13/545515

Inventors:

Giridhar Pattaswamy - Karnataka, IN
Navin K. Karra - Bracknell, GB
Abhishek Pandit - Wokingham, GB
Stephen J Richards - Maidenhead, GB
Yuan Liu - Holmdel NJ, US
Yaxin Cao - Laurence Harbor NJ, US
Jun Lin - Cupertino CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H04W 4/00

US Classification:

4554351

Abstract:

Systems and methods are presented to support operation of a multiple subscriber identity module (SIM) device. A first SIM may perform a data transfer or voice call. During the first SIM's data transfer or voice call, transition times are identified to transition communication resources to a second SIM for use in performing a registration update communication with a network controller that supports the second SIM. The registration update communication may include a periodic location update, a periodic routing update, or a periodic tracking update. The multiple SIM device may identify the transition time by obtaining periodic registration timing information from the network controller, configuring a periodic registration timer based on the periodic registration timing information, and setting the transition time as an expiration time of the periodic registration timer.

US Patent:

20130150013, Jun 13, 2013

Filed:

Jul 11, 2012

Appl. No.:

13/546515

Inventors:

Yuan Liu - Holmdel NJ, US
Jun Lin - Cupertino CA, US
Yaxin Cao - Laurence Harbor NJ, US
Sethuraman Gurumoorthy - Piscataway NJ, US
Tong Chen - Cliffwood NJ, US
Rami Mehio - San Diego CA, US
Jin-Sheng Su - San Diego CA, US
Arun Visvanath - San Diego CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H04W 4/00

US Classification:

455418

Abstract:

Systems and methods are presented to support operation of a multiple subscriber identity module (SIM) device. A timing conflict may exist when a scheduled high priority communication of a first SIM overlaps with a scheduled paging monitoring activity for a second SIM. The multiple SIM device may preempt transitioning communication resources to the second SIM when the first SIM executes high priority communications. Or, the multiple SIM device may execute a rescheduling action to resolve the timing conflict. The high priority communication of the first SIM may be rescheduled. Alternatively, normal priority paging monitoring actions may be rescheduled to resolve the timing conflict.

US Patent:

20140295831, Oct 2, 2014

Filed:

Mar 29, 2013

Appl. No.:

13/853747

Inventors:

- Irvine CA, US
Yongqian WANG - East Brunswick NJ, US
Lianghua YANG - Campbell CA, US
Shiwen CHEN - Morganville NJ, US
Naveen Reddy PALLE VENKATA - Aberdeen NJ, US
Yuan LIU - Holmdel NJ, US
Jun LIN - Cupertino CA, US
Yaxin CAO - Laurence Harbor NJ, US
Augustine SHUTON - San Diego CA, US
Balaji ANANDAPADMANABAN - Bracknell, GB

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H04W 68/00

US Classification:

455434

Abstract:

A wireless communication device includes a single baseband processor and RF chain for servicing a first and second SIM. Each of the SIMs connects to a different network, and one may be used for one data type while the other is used for another data type. In order to track the connectivity of an inactive first SIM, a controller periodically interrupts service to the second SIM. During its connection, the first SIM monitors the connection to its network. A triggering mechanism and trigger threshold define when a switch to a new cell is needed. The device receives the mechanism and threshold from the network and calculates a modified threshold and/or mechanism is order to reduce a number of potentially missed calls.