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Method for confirming default bearing and mobile management entity

A technology for managing entities and mobility, applied in electrical components, wireless communication, etc., can solve the problems that PDN link release, dedicated bearer establishment and other processes cannot be carried out and cannot be determined

Active Publication Date: 2011-03-16
XFUSION DIGITAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the user equipment moves from a Pre-SAE network such as GPRS (General Packet Radio Service) / UMTS to an EPS network, the Pre-SAE network does not distinguish between the default bearer and the dedicated bearer, and the EPS network needs to distinguish the default bearer Therefore, network devices such as user equipment and gateway devices cannot determine which bearer is the default bearer, which will cause subsequent processes such as PDN link release and dedicated bearer establishment to fail.

Method used

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  • Method for confirming default bearing and mobile management entity
  • Method for confirming default bearing and mobile management entity
  • Method for confirming default bearing and mobile management entity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] 202. The MME selects a bearer from the bearer list as a default bearer,

[0037] 203. The MME sends the default bearer indication information to at least one of the following network elements: user equipment UE, packet data network gateway P-GW, and serving gateway S-GW.

[0038] The embodiment of the present invention confirms the default bearer method. When the user equipment moves to the system architecture evolution SAE network, for example, the user equipment moves from a Pre-SAE network such as GSM / GPRS / UMTS to an EPS network, if the target network cannot distinguish the default bearer and a dedicated bearer, select a default bearer from the bearer list; and send the default bearer indication information to the user equipment UE and / or the gateway device. The user equipment UE and the gateway device can determine which bearer is the default bearer, so processes such as PDN link release and dedicated bearer establishment can be performed normally, and the problem o...

Embodiment 2

[0042] 302. A mobility management entity MME acquires a bearer list from the context information.

[0043]303. The mobility management entity MME acquires a bearer list created by the gateway device according to the instruction, where the bearer list includes at least one bearer;

[0044] Wherein, the step of MME selecting a bearer as a default bearer from the bearer list includes:

[0045] (1) Acquiring configuration parameters, said configuration parameters including: QCI (quality control identify, quality control identification) and ARP (assign retain priority, assignment retain priority);

[0046] (2) Select a default bearer from the bearer list according to the configuration parameters.

[0047] The bearer in the bearer list can be compared with the operator configuration parameters (such as subscription QCI, ARP, etc.) of the target mobility management network element, and a similar bearer can be used as a default bearer.

[0048] It is also possible to compare the bea...

Embodiment 3

[0070] 401. The user equipment sends a TAU Request message to a target mobility management network element.

[0071] 402. The target mobility management network element sends a Context Request message to the original mobility management network element to request context information.

[0072] 403. The original mobility management network element sends a Context Response message to the target mobility management network element to return the user equipment context information.

[0073] 404. The target mobility management network element sends a Context Acknowledge message to the original mobility management network element. This step is used to exchange context information, which includes a list of bearers.

[0074] 405. The target mobility management network element indicates to the serving gateway which bearer or bearers are default bearers.

[0075] In this step, first, the target mobility management network element confirms the default bearer from the bearer list.

[007...

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Abstract

The invention embodiment discloses a method for confirming default bearing and a mobile management entity, relating to switching among wireless access types. The invention solves the problem that whenuser equipment moves into a system architecture evolution SAE network, the user equipment, gateway equipment, and the like in a target network cannot confirm the default bearing, therefore, a flow such as PDN link release, special bearing establishment, and the like cannot be initiated. The method comprises the following steps: when the user equipment moves into the system architecture evolutionSAE network, the mobile management entity (MME) obtains a bearing list established by the gateway equipment according to an instruction, wherein the bearing list comprises at least one bearing; the MME selects one bearing from the bearing list as the default bearing, and sends indication information of the default bearing to at least one of the following network elements: the user equipment UE, apacket data network gateway P-GW and a service gateway S-GW. The embodiment of the invention is suitable for switching among wireless access types.

Description

technical field [0001] The present invention relates to switching between wireless access types, in particular to a method for confirming a default bearer and a mobility management entity. Background technique [0002] With the continuous development of communication technologies, the 3GPP system (the 3rd Generation Partner Project, 3rd Generation Partnership Project) proposed a SAE (System Architecture Evolution, system architecture evolution) project. The core network of the wireless evolution network mainly includes MME (Mobility Management Entity, mobility management network element), Serving SAE Gateway (Serving System Architechure Evolution Gateway service system framework evolution gateway), PDN SAE Gateway (packet data netSAE Gateway, packet data system framework evolution gateway ) three logical functional bodies, in which MME is a mobile management network element, responsible for NAS (non-access stratum) signaling and NAS signaling encryption, roaming, tracking an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/00
Inventor 张艳平吴问付胡伟华邸志宇
Owner XFUSION DIGITAL TECH CO LTD