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Method and device for acquiring 2g/3g location area information under circuit domain fallback

A circuit domain fallback and location information technology, which is applied in wireless communication, electrical components, accounting/billing services, etc., can solve problems that affect accurate business push, market expansion constraints, and inability to obtain user location information, etc.

Active Publication Date: 2020-01-17
中国移动通信集团重庆有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. The smart called party (CSFB user) cannot obtain 2G / 3G location information through the 4G network
[0006] 2. The SCP in the intelligent network cannot obtain the user's location information, so services based on location information cannot be realized, such as billing in preferential areas, call restrictions in special areas, formulation of marketing packages within the strategic range, etc.
[0007] 3. When 2G / 3G users replace their 4G cards, the original preferential services cannot be honored, resulting in a large number of complaints
[0008] 4. The lack of user location information leads to the inability to realize the location positioning function, which affects the accurate push of business and restricts market expansion

Method used

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  • Method and device for acquiring 2g/3g location area information under circuit domain fallback
  • Method and device for acquiring 2g/3g location area information under circuit domain fallback
  • Method and device for acquiring 2g/3g location area information under circuit domain fallback

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Embodiment Construction

[0063] In order to understand the characteristics and technical contents of the embodiments of the present invention in more detail, the implementation of the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and description, and are not intended to limit the embodiments of the present invention.

[0064] The existing mechanism for obtaining user location information under 2G / 3G / 4G networks has the following defects: Since 4G networks separate data services from voice services, when users initiate or receive voice calls under 4G networks, CSFB technology will Migrating the user back to the 2G / 3G network for connection takes time to process, and the called user cannot provide 2G / 3G location information even if the called user is under the 4G network, so the SCP cannot obtain the user's 2G / 3G location information in time. Also, differentiated billing for location infor...

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Abstract

The invention discloses a method and device for acquiring information of a 2G / 3G location area under circuit switched fallback (CSFB). The method comprises the following steps: when an SCP requests the location information of the called UE from a called MSC, the called MSC sends a paging request to an MME; the MME indicates the called UE to fall back to a 2G / 3G network, and the called UE sends the location information to the called MSC; the called MSC transparently transmits the location information of the called UE to the SCP, and the SCP stores the location information of the called UE and indicates a calling MSC to continue calling; the calling MSC continues calling to obtain the routing information and roaming numbers of the called UE; and the called MSC receives an incoming call request of the calling MSC, and then indicates the called UE to fall back to the 2G / 3G network, and also sends the paging request to the MME to put through the call.

Description

technical field [0001] The present invention relates to CSFB (Circuit Switched Fallback) technology in the field of mobile data, in particular to a method and device for acquiring 2G / 3G location area information under CSFB. Background technique [0002] CSFB voice service is a circuit domain fallback voice solution. When a user registers on the 4th generation (4G, 4Generation) mobile network—EPS, Evolved Packet System (EPS, Evolved Packet System) network to initiate or receive voice services, the EPS network instructs the user to fall back to the target circuit domain network before initiating or receiving voice services business. This voice solution is called a Circuit Domain Fallback in Evolved Packet System (CSFB in EPS) solution. [0003] In a 2G / 3G mobile network, when a user subscribes to an intelligent network service, such as a mobile virtual private network (VPMN, Virtual Private Mobile Network)—referred to as a V network, the service control point (SCP, ServiceCo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/24H04W8/12H04W36/14H04W64/00
CPCH04W4/24H04W8/12H04W36/14H04W64/00
Inventor 李游蔡锴刘康
Owner 中国移动通信集团重庆有限公司
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