Title:
FAST ACQUISITION IN MULTI-SUBSCRIBER IDENTITY MODULE (SIM) DEVICES
Document Type and Number:
WIPO Patent Application WO/2014/209579
Kind Code:
A3
Abstract:
A method and apparatus configured to perform fast acquisition in multi-subscription multi-active devices are described. The apparatus may establish a first traffic call associated with a first subscription using a first radio frequency chain and a second traffic call associated with a second subscription using a second radio frequency chain. A subscription corresponding to a third subscription may enter an out-of-service mode when the first and second traffic calls are established. A first network may be acquired for the first subscription using the first RF chain after the first traffic call is terminated. The third subscription may be transitioned from out-of-service mode to idle mode using acquisition information inherited from the subscription corresponding to the first SIM after the first network is acquired. The third subscription and the first network may be associated with a same radio access technology and a same network operator.
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Inventors:
GUDE VENKATA SIVA PRASAD RAO (IN)
SAHU DEBESH KUMAR (IN)
BABBADI VENKATA APPALA NAIDU (IN)
GIRISH VADLAMUDI VENKATA (IN)
SAHU DEBESH KUMAR (IN)
BABBADI VENKATA APPALA NAIDU (IN)
GIRISH VADLAMUDI VENKATA (IN)
Application Number:
PCT/US2014/041442
Publication Date:
February 26, 2015
Filing Date:
June 07, 2014
Export Citation:
Assignee:
QUALCOMM INC (US)
International Classes:
H04W48/16; H04W88/06; H04W52/02; H04W60/00
Foreign References:
| US20130005290A1 | 2013-01-03 | |||
| EP2472973A1 | 2012-07-04 | |||
| US20120190362A1 | 2012-07-26 |
Attorney, Agent or Firm:
HANSEN, Robert et al. (15th FloorReston, Virginia, US)
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