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Method and apparatus for optimizing cbs services in a multi-sim environment

A technology of equipment and cell broadcast service, which is applied in the direction of broadcast service distribution, wireless communication, electrical components, etc., and can solve the problems of increasing power consumption and message duplication

Active Publication Date: 2018-09-18
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This results in increased power consumption and unnecessary repetition of messages

Method used

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  • Method and apparatus for optimizing cbs services in a multi-sim environment
  • Method and apparatus for optimizing cbs services in a multi-sim environment
  • Method and apparatus for optimizing cbs services in a multi-sim environment

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Embodiment Construction

[0017] Various aspects are now described with reference to the drawings. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more aspects. It may be evident, however, that the described aspects may be practiced without these specific details.

[0018] The apparatus and methods described herein provide power consumption savings and reduce duplication of CBS messages in a multi-SIM device by optimizing reception of CBS messages. A combined set of CBS message identifiers for all SIMs in a device can be generated, and one of the multiple SIMs in the device can be selected to receive all CBS messages (as long as all SIMs communicate in the same area). Additionally, other SIMs in the device may be instructed to stop listening to and / or decoding CBS messages. Thus, less power is consumed and duplicate CBS messages are not received and processed on multiple SIMs in the same device. ...

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Abstract

Optimizing the handling of Cell Broadcast Service CBS messages in a mobile communication device with multiple Subscriber Identity Modules SIM. It is determined whether both the first SIM SIM1 and the second SIM SIM2 camp on the same PLMN. If this is the case, a combined CBS message list is generated including the message IDs of the CBS messages to be received. This combined CBS message list contains the message IDs from the individual CBS message lists of SIM1 and SIM2. It is then determined whether SIM1 and SIM2 otherwise camp on the same cell. If this is the case, it is sufficient that only one of SMI and SIM2 monitor and process CBS messages from the combined CBS message list, and instruct the selected one of S1M1 and SIM2 accordingly. However, if SIM1 and SIM2 camp on the same PLMN but on different cells, the received CBS message is analyzed for geographical range indications and only if said geographical range indicates "PLMN wide" then proceed with the same as described above Same disposition.

Description

[0001] Claim of priority under 35 U.S.C. §119 [0002] This patent application claims priority to Provisional Application No. 61 / 569,056, filed December 9, 2011, entitled "CBS Service for Dual SIM Capable UE", and it is assigned to the present assignee and is hereby expressly incorporated herein by reference. technical field [0003] The present application relates generally to Cell Broadcast Service (CBS) message processing, and more particularly to efficiently processing CBS messages in devices having multiple Subscriber Identity Modules (SIMs). Background technique [0004] The Cell Broadcast Service (CBS) allows a cell operator to broadcast messages to user equipment (UE) or mobile stations (MS) in a specific zone. CBS messages may contain information related to traffic, weather, general advertisements, emergency related messages, and the like. The geographic scope of a CBS message can be a cell within a public land mobile network (PLMN), a group of cells within a PLM...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/06H04W88/06
CPCH04W4/06H04W88/06
Inventor 纳维恩·库马尔·汉茨哈特苏迪尔·库拉克埃拉
Owner QUALCOMM INC