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Intersystem cell switching method for packet-switched domain service

A technology of cell switching and packet switching, which is applied in the field of communication, can solve problems such as NAS access failure and UE disconnection, and achieve the effect of improving experience and solving UE disconnection

Active Publication Date: 2013-01-23
盐城盐高保障房建设有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] The main purpose of the present invention is to provide a method, device and system for inter-system cell handover of PS domain services, so as to at least solve the above-mentioned problem of UE disconnection caused by NAS access failure when UE accesses GERAN

Method used

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  • Intersystem cell switching method for packet-switched domain service
  • Intersystem cell switching method for packet-switched domain service
  • Intersystem cell switching method for packet-switched domain service

Examples

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Embodiment 1

[0057] This embodiment provides a method for inter-system cell handover of PS domain services, see Figure 5 , this method is described from the UE side as an example, including the following steps:

[0058] Step S502, the UE determines that the NAS process fails during the process of switching from UTRAN to the target access network;

[0059] Step S504, the UE switches back to UTRAN again; the UTRAN in this embodiment also accepts the UE's return access;

[0060] In step S506, the UE notifies the UTRAN that the cell switching fails; for example, the UE sends a cell switching failure message to the UTRAN, notifying the UTRAN that the cell switching fails.

[0061] In the above UE process of determining the handover from UTRAN to the target access network, the failure of the NAS process includes: when the UE receives the routing area update rejection message returned by the target access network, it determines that in the process of handing over to the target access network, t...

Embodiment 2

[0148] This embodiment provides a user equipment (UE), see Figure 14 , the user equipment includes the following modules:

[0149] A determining module 142, configured to determine that the NAS process fails during handover from UTRAN to the target access network;

[0150] The switching module 144 is connected to the determining module 142, and is used for switching back to UTRAN after the determining module 142 determines that the NAS process fails;

[0151] The notification module 146 is connected to the switching module 144, and is used for notifying the UTRAN cell switching failure after the switching module 144 switches back to UTRAN.

[0152] Wherein, the determination module 142 includes: a failure determination unit, configured to receive the routing area update rejection message returned by the target access network, and determine that the NAS process fails during the process of switching to the target access network according to the routing area update rejection me...

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Abstract

The invention discloses an intersystem cell switching method, device and system in a packet-switched domain service. The method comprises the following steps: UE (user equipment) confirms that an NAS (network attached storage) process fails in a process of switching to a target access network from UTRAN (Umts Terrestrial Radio Access Network); the UE is switched into the UTRAN again; and the UTRAN is informed that cell switching fails. With adoption of the intersystem cell switching method, device and system in the packet-switched domain service which are disclosed by the invention, the problem that the UE drops as NAS access is unsuccessful when the UE is switched into GERAN (Gsm Edge Radio Access Network) from the UTRAN is solved, system performance is improved, and user experience is improved.

Description

technical field [0001] The present invention relates to the field of communications, in particular to a method for inter-system cell handover of Packet Switched (PS, Packet Switched) services. Background technique [0002] Currently, there are wireless access systems of various standards that can provide wireless access. For example, Universal Terrestrial Radio Access Network (UTRAN, Universal Terrestrial Radio Access Network) is based on Wideband Code Division Multiple Access (WCDMA, Wideband Code Division Multiple Access). GSM (Global System for Mobile communication, Global System for Mobile Communications) / EDGE (Enhanced Data rates for GSM Evolution, enhanced data rates for GSM) radio access network (GERAN, GSM / EDGE Radio Access Network) is based on GSM / EDGE of. If a user equipment (UE, User Equipment) accesses packet-switched domain services from a coverage area of ​​an access network, set it as the source access network, and move to the edge of the coverage area of ​​...

Claims

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Application Information

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IPC IPC(8): H04W36/08H04W76/04
Inventor 黄庆聂小平
Owner 盐城盐高保障房建设有限公司
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