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Method for realizing circuit switched fallback business and terminal with double receiving modes

A technology of circuit switching fallback and mode terminal, which is applied in the direction of electrical components, connection management, wireless communication, etc. It can solve the problems of different MSC/VLR, achieve the effect of improving user experience and shortening call establishment time

Inactive Publication Date: 2012-07-04
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0062] The technical problem to be solved by the present invention is to provide a method for implementing circuit switched fallback services and a dual-receiving mode terminal to solve the problem that the MSC / VLR of the target cell where the terminal falls back is not the same as the MSC / VLR jointly registered by the UE in the EPS network

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  • Method for realizing circuit switched fallback business and terminal with double receiving modes
  • Method for realizing circuit switched fallback business and terminal with double receiving modes
  • Method for realizing circuit switched fallback business and terminal with double receiving modes

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Embodiment Construction

[0111] Since in the CSFB service of a terminal in single-radio mode, the MSC / VLR of the target cell where the UE falls back may be different from the MSC / VLR that the UE jointly registers for accessing the EPS network, resulting in longer call access time for the UE, this embodiment considers The dual receiver mode (Dual Receiver, Dual Rx) terminal can receive broadcast messages of E-UTRAN and UTRAN / GERAN at the same time, and can also receive paging messages of E-UTRAN, but the transmitting unit can only work in one wireless mode characteristics, it can be considered to use dual receiving mode terminals to realize CSFB business and solve the problems existing in CSFB business. Dual-receiving mode terminals, also known as dual-receiving and single-transmitting terminals, are between single-radio mode terminals and dual-radio mode terminals. The cost of such terminals is basically the same as that of single-radio terminals. Dual wireless mode terminals also have certain advanta...

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Abstract

The invention discloses a method for realizing a circuit switched fallback business and dual-receiving-mode user equipment. The method includes: utilizing the dual-receiving-mode user equipment to acquire an LAI (location area identifier) of a resident cell in a GERAN (GSM enhanced radio access network) / UTRAN (universal mobile telecommunication system radio access network); enabling the dual-receiving-mode user equipment to transmit the LAI to an MME (mobility management entity) when the dual-receiving-mode user equipment initiates combined attachment an E-UTRAN (evolved universal mobile telecommunication system radio access network) and GERAN / UTRAN and updates combined positions of the same; and utilizing the MME to select a visited location register for the dual-receiving-mode user equipment according to the received LAI. By the aid of the method, the UE (user equipment) can be guaranteed to be constantly attached to a correct MSC (mobile switching center) / VLR (visited location register), and the problem that an attached MSC and a call admission MSC in an existing UE circuit switched fallback business with a single radio mode can be different is solved.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a method for realizing a circuit switching fallback service and a dual receiving mode terminal. Background technique [0002] Evolved Packet Switched System (EPS for short) is a mobile packet switching technology developed and formulated by the 3rd Generation Partnership Project (3GPP for short), aiming to provide a higher transmission rate , a wireless packet switching network with shorter transmission delay. [0003] EPS can be further divided into Evolved Universal Mobile Telecommunication System Radio Access Network (E-UTRN) and Evolved Packet Switched Core (EPC). EPC can also support Universal Mobile Telecommunication System Radio Access Network (UTRAN for short), GSM (Global System for Mobile communications, Global System for Mobile Communications) Enhanced Radio Access Network (GSM Enhanced Radio Access Network) Network, referred to as GERAN) and other wirel...

Claims

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Application Information

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IPC IPC(8): H04W36/14H04W76/02H04W88/06
Inventor 钟宏郝振武陶全军
Owner ZTE CORP
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