Group terminal position reporting method and system

Abstract

The invention discloses a group terminal position reporting method and system, and the method comprises the steps that a core network and corresponding UE respectively record the current position information of the UE and the position information of a network side during synchronization when a preset NAS flow is triggered; when a group needs to be established, group resources are established underthe tracking areas corresponding to the tracking area lists of all the UE in the group, and downlink group information of the group is sent to the UE of the group; wherein the downlink group information comprises the resource management granularity of the group; wherein the resource management granularity is a cell range, a base station range or a tracking area range; and the UE compares whetherthe current position of the UE is the same as the latest position synchronized with the network side or not according to the resource management granularity in the downlink group information, and if not, the network side is triggered to update the position information of the UE to the current position of the UE by initiating a group joining process. By adopting the invention, the problem of network resource congestion caused by reporting the position by the group terminal can be solved.

Description

technical field [0001] The invention relates to mobile communication technology, in particular to a method and system for reporting the position of group terminals. Background technique [0002] In the existing Broadband Trunking Communication (B-Trunc) system, when a group is established, the core network will count the range where the terminals that subscribe to this group are located (that is, the tracking area (TA) where the UE is located). If there are relevant terminals, the entire TA establishes group resources. [0003] When the terminal moves to another cell, or the terminal is turned off, or the terminal is in another group, the group resource is still established in the corresponding position, resulting in waste of group resource. [0004] Therefore, as defined in the existing standard, when a group is established, a terminal that chooses to join the group session needs to report its location and the selected group. The network side can count whether each user j...

AI Technical Summary

Problems solved by technology

This scenario may cause network congestion, including air interface resources and network resources

Even if the terminal adds a smoothing mechanism, the problem is still serious for many group call scenarios that are quickly established and deleted

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