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Method and device for activating return circuit domain function of user terminal
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A user terminal and deactivation technology, applied in the field of mobile communication, can solve problems such as not being defined
Active Publication Date: 2011-04-13
DATANG MOBILE COMM EQUIP CO LTD
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[0016] Similarly, when the UE is in the connected state in the MME, when the MSC / VLR detaches the UE (for example, the HSS sends a Cancel Location message to the MSC / VLR, indicating that the CS domain subscription function subscribed by the UE is deleted; or because the MSC / VLR Due to OAM reasons, the context data of the UE will be deleted), the CSFB function of the UE will be deactivated, but at this time how the MME notifies the UE that its CSFB function is deactivated has not yet been defined
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Embodiment 1
[0058] In this embodiment, MSC / VLR is taken as an example for the first mobility management control entity, and MME is taken as an example for the second mobility management control entity.
[0059] Such as Figure 4a As shown, it is a flow chart of deactivating the CSFB function of the UE proposed in Embodiment 1 of the present invention, and the specific process is described as follows:
[0060] Step A1: The MME and MSC / VLR activate the CSFB function for the UE, that is, the CSFB function of the UE is activated between the MME and the MSC / VLR in the early stage;
[0061] Step A2: The MME deattaches the UE in the PS (Packet Switched) domain of the EPS, and the process for the MME to detach the UE has been defined in TS23.401;
[0062] The process of UE detachment by MME can be initiated by MME or by UE itself. In the following embodiments of the present invention, if the detachment process is initiated by UE, the detachment caused by UE shutdown (Switch Off) is taken as an e...
Embodiment 2
[0077] In this embodiment, an MME is taken as an example for the first mobility management control entity, and an MSC / VLR is taken as an example for the second mobility management control entity.
[0078] Such as Figure 5a As shown, it is a flow chart of deactivating the CSFB function of the UE proposed in Embodiment 2 of the present invention, and the specific process is described as follows:
[0079] Step C1: The MME and MSC / VLR activate the CSFB function for the UE, that is, the CSFB function of the UE is activated between the MME and the MSC / VLR in the early stage;
[0080] Step C2: MSC / VLR deattach UE in CS domain, the process of MSC / VLR deattach UE has been defined in TS24.008;
[0081] The process of UE being deattached by MSC / VLR can be initiated by MSC / VLR or by UE itself. Attachment is taken as an example. For example, when the UE is located in UTRAN / GERAN, the UE initiates the process of deattaching the MME and MSC / VLR due to power off. At this time, the MSC / VLR ...
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Abstract
The invention discloses a method for activating the return circuit domain function of a user terminal, which comprises the following steps: a first mobile management control entity receives de-adhesion indication information sent by a second mobile management control entity, judges whether the de-adhesion indication information indicates that the first mobile management control entity removes theuser terminal or not, and notifies the user terminal that the return circuit domain function of the user terminal is activated when the de-adhesion indication information is judged to not indicate that the first mobile management control entity removes the user terminal. Accordingly, the invention also discloses the mobile management control entities and the user terminal. The technical scheme fills up the blank that the prior art activates the return circuit domain function of the user terminal.
Description
technical field [0001] The present invention relates to the technical field of mobile communication, and in particular to a method for deactivating a return circuit domain function of a user terminal, a mobility management control entity and a user terminal. Background technique [0002] The Evolved Packet System (EPS, Evolved Packet System) proposed in the Third Generation Partnership Project (3GPP, Third Generation Partnership Project) uses a high-speed, efficient Evolved Universal Terrestrial Radio Access Network (E-UTRAN, Evolved Universal Terrestrial Radio Access Network) . In the EPS system, traditional voice services based on circuit switching (CS, Circuit Switch) will be realized through E-UTRAN, Evolved Packet Core network (EPC, Evolved Packet Core network) and IP multimedia services (IMS, IP Multimedia Service) . [0003] However, because the traditional 2G / 3G system implements voice services through the CS domain and the network has been deployed and used for ma...
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