A method and device for generating a tracking area list ta LIST

Abstract

The present invention provides a method and device for generating a tracking area list TA LIST. The method includes: when the UE enters the current TA from the previous TA, obtains information on the time point when the UE enters the current TA from the previous TA; Update the previous timestamp to the current timestamp according to the time point information; judge whether there is information about the current TA in the TA LIST1; judge whether the sorting information of the current TA is the The first place of TA LIST1; modify the sorting information of the current TA to the first place of the TA LIST1, and modify the duration of the current TA to a preset time; add the current TA to the TA LIST1 TA information; modify the duration of the previous TA according to the previous timestamp and the current timestamp. The invention is used to reduce the paging amount in the hotspot area, increase the probability that the UE is paged, reduce the paging coverage area, and reduce the paging burden.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for generating a tracking area list TA LIST. Background technique [0002] Tracking Area (Tracking Area) is a concept established by TD-LTE (Time Division Long Term Evolution) network for UE (User Equipment, user equipment) location management. TA LIST (Tracking Area LIST, tracking area list) is defined as The UE does not need to execute the TAU (Tracking Area Update, tracking area update) process when entering the TA. When the UE is in the idle state IDLE, the core network can know the TA where the UE is located, and at the same time, when the UE in the IDLE state needs to be paged, it must perform paging in all cells of the TA where the UE is registered. [0003] The TA LIST is assigned to the UE by the MME (Mobility Management Entity). If the UE is in the IDLE state, the core network needs to page the UE, and also needs to perform paging in ...

AI Technical Summary

Problems solved by technology

If the paging area is too small, the probability of the mobile UE being called becomes smaller. If the paging area is too large, it will increase the consumption of wireless resources and increase the load of the network. That is, if the TA LIST is too large, it will cause paging. The increase of the traffic will cause a relatively large pressure on the limited wireless resources. If the TA LIST is too small, it may cause the UE to fail to be paged.

[0004] In the existing methods of dynamically generating TA lists, some broadcast fixed TA lists according to the cell, and the MME maintains the stickiness between TAs according to the behavior of all UE processes, so as to allocate TA lists. This method is to configure or count all UEs The TA LIST generated by the behavior will cause the TA LIST of all UEs entering the TA to be consistent, without considering the UE's individual behavior, and also increase the paging volume in hotspot areas; some TALISTs are formed based on the behavior of the UE. However, the number of TAs is fixed, which does not take into account the historical behavior trajectory of the UE, nor does it take into account that the UE may be in a fixed area, resulting in redundant information in the TA LIST of the UE, resulting in unnecessary paging

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