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Mobile communication method, mobile station, and wireless access network device

A technology of wireless access network and mobile communication system, which is applied in the field of wireless access network devices, and can solve problems such as inability to cope with line switching, inability to perform line switching communication, etc.

Active Publication Date: 2014-03-12
NTT DOCOMO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] However, there is a problem that since the conventional LTE system cannot handle circuit switched (CS: Circuit Switch) communication, the mobile station UE cannot perform circuit switched communication (with incoming and outgoing calls) while waiting in the LTE system. )

Method used

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  • Mobile communication method, mobile station, and wireless access network device
  • Mobile communication method, mobile station, and wireless access network device
  • Mobile communication method, mobile station, and wireless access network device

Examples

Experimental program
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Embodiment Construction

[0045] (Structure of the mobile communication system according to the first embodiment of the present invention)

[0046] refer to figure 1 as well as figure 2 , the configuration of the mobile communication system according to the first embodiment of the present invention will be described.

[0047] Such as figure 1 As shown, in the mobile communication system according to this embodiment, a system of the LTE system (first communication system) that cannot support circuit-switched communication and a system of WCDMA / GSM (second communication system) that can support circuit-switched communication coexist.

[0048] Specifically, an LTE system (first communication method) system includes an exchange MME (core network device of the first communication method); and a radio base station eNB (radio access network device of the first communication method).

[0049] In addition, the WCDMA / GSM (second communication method) system includes: a line switching communication switch M...

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Abstract

When a mobile station (UE) is camping on a system of the LTE scheme, a function (EMM) is configured to transmit a service request signal including a "CSFB" to an MME; the MME is configured to transmit setup information including a "CSFB" to an eNB in response to the service request signal transmitted by the function (EMM); the eNB is configured to transmit, to a function (AS), instruction information instructing to select a cell in a system of the WCDMA / GSM scheme in response to the setup information transmitted by the MME; the function (AS) is configured to select the cell in the system of the WCDMA / GSM scheme in accordance with the instruction information transmitted by the eNB; and the function (MM) is configured to set up circuit switched communications via the cell in the system of the WCDMA / GSM scheme selected by the function (AS).

Description

technical field [0001] The present invention relates to waiting in the system of the first communication method in a mobile communication system in which a system of the first communication method incompatible with circuit-switching communication and a system of the second communication method capable of supporting circuit-switching communication coexist. A mobile communication method, a mobile station, and a wireless access network device for a mobile station to start circuit switching communication. Background technique [0002] refer to Figure 5 A communication start operation in a conventional LTE (Long Term Evolution, Long Term Evolution) system will be described. [0003] Such as Figure 5 As shown, in step S3000, the mobile station UE performs location registration processing (attachment (Attach) / TAU (Tracking Area Update, tracking area update)) to the exchange MME in the LTE mode. [0004] In step S3001A, the application function AP of the mobile station UE sends a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W48/18H04W68/12H04W76/02H04W80/00H04W88/06
CPCH04W48/18H04W76/02H04W8/24H04W36/0022H04W68/12H04W76/10H04W36/00224H04W76/30H04W88/06
Inventor 岩村干生山岸弘明
Owner NTT DOCOMO INC