Method for updating routing area and user terminal

Abstract

The invention relates to the field of communication, and discloses a method for updating a routing area and a user terminal. In the method, the current existence of a PS service is detected when routing update is required, and the updating process of the routing area of a PS domain is not performed when no PS service is operated to reduce the power consumption caused by related signaling overhead, and solve the problem that a CS domain called paging is lost in the signaling process. When the PS service is initiated, UE (user equipment) performs the PS attachment process again to ensure that anetwork can normally identify the validity of the UE so as to normally respond to a PS service request of the UE.

Description

technical field [0001] The invention relates to the communication field, in particular to the routing area update technology in the communication field. Background technique [0002] In recent years, the global mobile communication technology has developed rapidly, and the third generation mobile communication (3rd Generation, referred to as "3G") is an inevitable trend of development. The International Telecommunication Union (International Telecommunication Union, referred to as "ITU") has specified five terrestrial wireless technologies for 3G, among which Wideband Code Division Multiple Access (WCDMA for short), Code Division Multiple Access 2000 (Code Division Multiple Access) Multiple Access 2000, referred to as "CDMA2000") and Time Division Synchronous Code Division Multiple Access (Time Division Synchronous Code Division Multiple Access, referred to as "TD-SCDMA") are three mainstream technologies. Regarding the technology of TD-SCDMA, please refer to the US Patent ...

AI Technical Summary

Problems solved by technology

[0009] For the above method (1), when the CS service exists, the normal routing area update process caused by the change of the routing area during the movement may affect the ongoing CS telephone service due to the abnormal handling of the process (network or UE), cause dropped calls

When in idle mode, the normal routing area update process due to the change of the routing area due to cell reselection, or the periodic routing area update process due to the timeout of the periodic timer, will increase the standby power consumption, and due to the process During the process, the UE cannot monitor the paging, resulting in missed reception of the called UE

[0010] For the above method (2), although the routing update process when there is no PS service can be avoided, the detachment after each service will still increase the corresponding signaling interaction process

Moreover, when two PS services are carried out successively, that is, when service 1 ends first, and then service 2 starts immediately, unnecessary signaling overhead (detachment process) will be added, and it may be due to the above deregistration and registration process If the interval is too short or crossover occurs, the network or UE will be abnormal, resulting in the failure of subsequent service initiation

[0011] It can be seen that the existing routing area update method after PS attachment has problems such as increased power consumption, high paging loss rate, and possible signaling crossover or too short interval, which affects subsequent business processing.

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