Invention Grant
- Patent Title: Assisting return to a first network from a second network after performance of a circuit switched fallback procedure
- Patent Title (中): 在执行电路交换后备程序之后协助从第二网络返回到第一网络
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Application No.: US13783075Application Date: 2013-03-01
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Publication No.: US09055488B2Publication Date: 2015-06-09
- Inventor: Mohan Rao Thota , Sai Sravan Bharadwaj Karri
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Downey Brand LLP
- Main IPC: H04L12/26
- IPC: H04L12/26 ; H04W4/00 ; H04W36/00

Abstract:
A method for assisting a wireless communication device to return to a first network from a second network is provided. The method can include the wireless communication device participating in a CSFB procedure to transition from the first network to the second network for servicing of a voice call; receiving a connection release from the second network after termination of the voice call; initiating a reselection procedure to reselect to the first network; determining presence of packet switched data ready for transmission from the wireless communication device before completion of the reselection procedure; holding the packet switched data at the wireless communication device at least until expiry of a reselection timer initiated during the reselection procedure; reselecting to the first network after expiry of the reselection timer; and initiating transmission of the packet switched data on the first network after completing reselection to the first network.
Public/Granted literature
Information query