Method, device and base station for dynamically adjusting multicast single frequency network area

Abstract

The invention provides a method, a device and a base station for dynamically adjusting a multicast single frequency network area, and belongs to the technical field of telecommunication. The method comprises the following steps: acquiring a geographical position of a cell in a single frequency network, wherein the geographical position comprises a single frequency network fringe area and a singlefrequency network central area; and maintaining the single frequency network transmission state adopted by the cell when the geographical position of the cell is the single frequency network central area. By combining the distribution condition of the cell in the SFN area, the invention can more reasonably and dynamically adjust the MBSFN area, avoid the influence on MBMS service receiving performance of users of other cells and make the allocation of physical resources of an empty port and high-level resources more reasonable.

Description

technical field [0001] The invention relates to the technical field of electrical communication, in particular to a method and a device for dynamically adjusting an MBSFN (Multicast Multicast Single Frequency Network) area. Background technique [0002] 3GPP (Third Generation Partnership Project) defines the network structure and service requirements of Multimedia Broadcast Multicast Service (MBMS, Multimedia Broadcast Multicast Service), which supports point-to-multipoint services to realize the same data from one data source to Teleportation of multiple targets. [0003] Existing MBMS services can be transmitted through SFN (Single Frequency Network, single frequency network). SFN is a radio transmitting station in a synchronous state at different locations, which transmits the same signal at the same frequency at the same time to achieve reliable coverage of a certain service area, so that MBMS services at a higher rate can be transmitted through SFN. However, when SFN ...

AI Technical Summary

Problems solved by technology

Since the counting process is not only for the cells in the SFN edge area, but if the counting process is directly introduced into the dynamic adjustment of the SFN area, there may be only one cell in the middle of the SFN area, or there may be no users receiving MBMS services in several cells

like figure 1 As shown, there are no users in Cell 1 and Cell 8 to receive MBMS services. If SFN transmission is not used in Cell 8, it will bring relatively poor performance to users at the edges of Cells 2, 3, 4, 5, 6, and 7 to receive MBMS services. big impact

At the same time, if cell 8 transmits other services on the same resource, it will also cause greater interference, which will affect the reception effect

[0005] In the process of implementing the present invention, it is found that there are at least the following problems in the prior art: because the existing counting process or recounting process is not only for cells in the SFN edge area, and does not combine the distribution of cells in the SFN area, Therefore, in the process of adjusting the SFN area, the cell located in the central area of ​​the SFN may affect the performance of users in other cells receiving MBMS services

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