Mobile management method and system for terminal in wireless relay system

A wireless relay and management method technology, which is applied to the terminal mobility management method and system field in the wireless relay system, can solve the problem of low priority, achieve the effect of reducing handover delay and simplifying the handover process

Inactive Publication Date: 2011-01-05
ZTE CORP
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] At present, most companies support S1 to be terminated by Relay, so the fourth option has a lower priority

Method used

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  • Mobile management method and system for terminal in wireless relay system
  • Mobile management method and system for terminal in wireless relay system
  • Mobile management method and system for terminal in wireless relay system

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Embodiment Construction

[0071] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail by citing the following embodiments and referring to the accompanying drawings.

[0072] Under the system architecture of scheme 2, the present invention implements handover of UE between different relay stations belonging to the same DeNB through the X2 interface established between the source Relay and the target Relay.

[0073] Such as Figure 8 As shown, the steps in the process of switching the control plane are as follows:

[0074] Step 1: The user terminal context (UE context) in the source Relay includes information related to roaming restrictions provided when the connection is established or the tracking area (Tracking Area) information is updated last.

[0075] Step 2: The source Relay configures the UE measurement procedure according to the information related to the above roaming restriction, and the mea...

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Abstract

The invention discloses mobile management method and system for a terminal in a wireless relay system, which are used for solving the technical problem that UE (User Equipment) is switched among different relays belonging to the same DeNB. In the method, an X2 interface link among relay stations belonging to the same DeNB is established; the source relay station transmits a switching request to the target relay station; the target relay station performs access permitting control; if the target relay station permits the user terminal to access, the source relay station executes the forwarding of the context and the cache data of a user; and after the user terminal is successfully accessed into the target relay station, the target relay station informs DeNB path change, and the DeNB executes path switching. In the switching process provided by the invention, the control of data forwarding is just carried out between the source relay station and the target relay station without forwarding by the DeNB or MME / S-GW (Mobility Management Entity / Serving Gateway) processing, thereby simplifying the switching process and reducing the switching delay to a certain extent.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a terminal mobility management method and system in a wireless relay system. Background technique [0002] Such as figure 1 As shown, the cellular wireless communication system is mainly composed of terminals, access network and core network. A base station or a network composed of a base station and a base station controller is called a radio access network (Radio Access Network, RAN), and is responsible for access layer affairs, such as management of radio resources. There may be physical or logical connections between base stations according to the actual situation, such as figure 1 Base station 1 and base station 2 or base station 3 in . Each base station can be connected to one or more core network nodes (Core Network, CN). The core network is responsible for non-access stratum affairs, such as location updates, and is the anchor of the user plane. A termin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/08H04W88/08H04W88/18
CPCH04W84/047H04B7/2606H04W36/02H04W36/0033H04W92/20H04W36/38H04W8/02
Inventor 沈晓芹韩立锋马睿
Owner ZTE CORP
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