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Relocating method for WCDMA system

A wideband code division multiple access and relocation technology, which is applied in the field of communication, can solve the problems of many times of air interface reconfiguration, high risk of call drop, and does not reflect the difference in positioning process, so as to reduce the number of air interface reconfiguration and reduce call drop risk and the effect of shortening the required time

Inactive Publication Date: 2009-01-07
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the CS service has not been established at this time, so at this time, the relocation of the signaling bearer (Signal Radio Bearer) can be performed first and then the establishment process of the CS service can be initiated, or the signaling bearer relocation process can be performed while the CS service is established. The first solution is usually used now, and one of the problems of the first solution is that it takes a long time for service establishment, and the number of air interface reconfigurations is relatively large. The risk of call drop caused by air interface reconfiguration is relatively small. bigger
[0006] At present, in the 3GPP protocol, there is no regulation on how to relocate eHSPA Node B to RNC while the CS service is established, and it does not reflect the difference between the relocation process and the usual relocation process. In addition, from From a technical point of view, no solution has been proposed to effectively relocate the eHSPANode B to the RNC while the CS service is established.

Method used

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  • Relocating method for WCDMA system
  • Relocating method for WCDMA system
  • Relocating method for WCDMA system

Examples

Experimental program
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Effect test

example 1

[0048] Example 1: UE initiates CS service when it resides on eHSPA Node B network and is in idle (IDLE) state

[0049] Such as Figure 4 As shown, in this example, the following processing steps are specifically included:

[0050] (1) Refer to the CS directional retry cell (Direct Retry) from WCDMA to GSM, wherein the directional retry cell is used to indicate that the process initiated by the CS domain CN is a directional retry;

[0051] (2) Return a failure in the Radio Bearer Assignment Response (Radio Bearer Assignment Response), and indicate that the reason is directed retry;

[0052] (3) Fill in the reason as Direct Retry (Direct Retry) in the relocation request message (Relocation Required), and send the request to the CN of the CS domain;

[0053] (4) Perform relocation from eHSPA Node B to RNC. In this process, on the one hand, the UE context such as signaling bearer can be carried in the relocation request message; on the other hand, the directional retry cell and ...

example 2

[0059] Example 2: When the UE resides on the eHSPA Node B network and has established PS domain services, it initiates CS services

[0060] In the processing of this example, in the case that the PS is performed first and then the CS service is concurrently issued, the process of initiating the relocation from the eHSPA Node B to the RNC is accompanied by the establishment of the CS service, which is the same as Figure 4 The difference of the processing shown in is that the process related to PS domain relocation is added. Such as Figure 5 As shown, the specific processing in this example is as follows:

[0061] (1) Refer to the CS directional retry cell (Direct Retry) from WCDMA to GSM, wherein the directional retry cell is used to indicate that the process initiated by the CS domain CN is a directional retry;

[0062] (2) Return a failure in the Radio Bearer Assignment Response (Radio Bearer Assignment Response), and indicate that the reason is directed retry;

[0063] ...

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Abstract

The invention discloses a relocation method of wideband code division multiple access systems; wherein, by carrying a directional retrial cell in wireless bearing assignment response information and carrying the directional retrial cell and target district information of a wireless network controller in relocation application information, eHSPA Node B informs a core network to carry out the relocation from the eHSPA Node B to the wireless network controller when the core network carries out the circuit switching service. The invention can effectively realize the relocation as well as the establishment of CS service between the eHSPA Node B and RNC and has good compatibility for traditional protocols, therefore, the present RNC protocol and RNC need not be modified at all; in addition, the relocation method reduces the time of service establishment and the times of gap reassortment, thus reducing the risk of call drop caused by the gap reassortment.

Description

technical field [0001] The present invention relates to the communication field, and in particular, relates to a relocation method of a Wideband Code Division Multiple Access (WCDMA) system. Background technique [0002] The 3rd Generation Partnership Project (3rd Generation Partnership Project, 3GPP for short) proposes a new network architecture and function division in its protocol of the R7 version. Such as figure 1 As shown, a new network element is introduced into the architecture, that is, an evolved High Speed ​​Packet Access Node B (eHSPA Node B for short). [0003] Under this architecture, for packet switched (Packet Switched, referred to as PS) services, eHSPA Node B integrates the function of a radio network controller (Radio Network Controller, referred to as RNC), and communicates with the PS core network (Core Network, referred to as CN) The gateway general packet radio service support node (Gateway General packet radio service support node, referred to as GG...

Claims

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Application Information

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IPC IPC(8): H04B1/707H04Q7/38H04W36/10
Inventor 杨金星
Owner ZTE CORP
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