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Method and apparatus for implementing signaling reduction in idle state with boundary-striding of user equipment

A user equipment, idle state technology, applied in the field of mobile tracking, can solve problems such as loss of meaning, and achieve the effect of simple mechanism and easy implementation

Active Publication Date: 2009-04-15
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the concept of periodic update is not introduced in LTE, this method loses its meaning

Method used

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  • Method and apparatus for implementing signaling reduction in idle state with boundary-striding of user equipment
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  • Method and apparatus for implementing signaling reduction in idle state with boundary-striding of user equipment

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Embodiment Construction

[0044] The main idea of ​​the present invention is: when the UE in the IDLE state crosses the boundary between the first network and the second network, the PRAU timer in the SGSN is invalidated through the ISR message mechanism. This method is a relatively feasible method for a system that does not use a periodic TA update mechanism in the LTE / SAE system. The implementation principle of this method is: after the UE double-registers, it maintains the IDLE state in the original system, and its context is not deleted. When the UE crosses the boundary between two networks, since the UE stops running the timer in the original system, it can be guaranteed that under normal circumstances the UE will not be marked as unreachable by the network due to the expiration of the periodic update timer.

[0045] Here, the first network may be UTRAN in 2G / 3G, and the corresponding second network is E-UTRAN under LTE / SAE; or, the first network is E-UTRAN under LTE / SAE, and the second network is...

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Abstract

The invention discloses a method for reducing signaling under an idle state when user equipment crosses a boundary. The method comprises the steps as follows: the user equipment is registered in a second network, when the user equipment moves to the second network under the idle state, after being registered in a first network; and an ISR mechanism is started, and SGSN stops a periodical route update timer of the user equipment. The invention also discloses a corresponding device which stops a periodical update timer of the user equipment in a network element by a message mechanism, thus solving the problem that UE is untouchable in the SGSN under the IDLE state when ISR function is adopted between 3G and LTE-SAE, due to the operation of the periodical route update timer in 3G, and simultaneously no operation of a periodical tracing area update timer in an LET-SAE system. The invention does not define a periodical TA update mechanism for coordinating, therefore, the whole mechanism is simpler and is easy to be realized.

Description

technical field [0001] The present invention relates to a mobile tracking technology of user equipment, in particular to a method and device for realizing signaling reduction in idle (IDLE) state when user equipment crosses a boundary. Background technique [0002] After the introduction of the 3rd Generation Partnership Project (3GPP, 3rd Generation Partnership Project) Long Term Evolution (LTE, Long Term Evolution) technology, due to the initial network deployment, it is generally considered in the large-scale 2G / 3G Global System for Mobile Communications / Universal Wireless Communications Interface (GSM / UTRA, GlobalSystem for Mobile Communications / Universal Telecommunication Radio Access) network locally deploys LTE-improved UTRA (E-UTRA, Evolved Universal Telecommunication Radio Access) network, so it is proposed that when user equipment (UE, User Equipment) When frequently crossing the boundary between two access technologies, a solution should be considered to save the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/14H04W36/24
Inventor 姜怡华
Owner DATANG MOBILE COMM EQUIP CO LTD
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