Method and system for dynamic adjustment of multicast area in multicast single-frequency point network

Abstract

This application discloses a method and system for dynamically adjusting the multicast area of ​​a multicast single-frequency point network. The network side broadcasts the MA list to which the current cell belongs in the system message, and the user equipment finds that the MA list has changed according to the system message. , report a new MA list to the network side; the network side updates the relationship table between the currently maintained SAI, MA and UE according to the MA list reported by the user equipment; when the network side receives a subscription group establishment request, according to All the subscription SAIs corresponding to the subscription group and the relationship table of the SAI, MA and UE, count the number of subscription users of the subscription group under each corresponding MA; for the MA whose number of subscription users is less than the preset threshold, in Under this MA, service broadcasting is carried out in an on-demand mode. By adopting the present invention, the interference problem between MAs can be effectively alleviated and air interface resources can be saved.

Description

technical field [0001] The invention relates to mobile communication technology, in particular to a method and system for dynamically adjusting a multicast area of ​​a multicast single frequency network (MBSFN). Background technique [0002] Currently, the multicast SFN area (MBSFN Area, MA) is managed by the MCE network element on the network side and notified to the ENB. Such as figure 1 As shown, a service area may include multiple MAs. In the existing multicast SFN (MBSFN) protocol, a cell (cell) can belong to multiple MAs, and MAs can overlap or be paralleled; MAs cannot be configured across service areas (SAs). [0003] In one MA, the air interface resource configuration of the same service in all cells is the same, so there is a reception combining gain. However, the air interface resources of the same service may be different between the two MAs, and the resource staggering between the two MAs will cause mutual interference. [0004] A method that can effectively...

AI Technical Summary

Problems solved by technology

However, the air interface resources of the same service may be different between two MAs, and the resource staggering between the two MAs will cause mutual interference

[0004] At present, no method has been proposed that can effectively solve the above-mentioned interference problem caused by resource staggering between MAs.

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