Resource scheduling method and equipment under multi-point coordinated transmission

Abstract

An embodiment of the invention discloses a resource scheduling method and equipment under multi-point coordinated transmission, relates to the field of wireless communication, and is used for reducing time delay of a noncentral coordinated scheduling scheme under CoMP (coordinated-multi-point) transmission, so as to improve scheduling efficiency. In the scheme, a service base station determines a final precoding matrix which cannot be used by a coordinated base station according to a negotiation result between the service base station and the coordinated base station in advance, and performs resource scheduling according to channel state information (CSI) reported by a user terminal and the final precoding matrix which cannot be used by a coordinated base station, and the coordinated base station performs resource scheduling according to the CSI reported by the user terminal and the final precoding matrix which cannot be used by a coordinated base station. By adoption of the scheme, the resource scheduling efficiency can be improved.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a resource scheduling method and equipment under coordinated multi-point transmission. Background technique [0002] In the long term evolution-advance (LTE-A) system, in order to reduce the neighbor cell interference of the user equipment (UE) at the edge of the cell coverage and improve the experience of the user terminal at the edge of the cell, coordinated multi-point transmission is adopted. Technology (coordinated-multiple-point, CoMP). Coordinated multi-point transmission technology is the cooperation between multiple geographically separated transmission points (transmission point, TP). Generally, multiple transmission points refer to base stations of different cells, or a base station of a cell and multiple RRHs controlled by it. Coordinated multi-point transmission technology can be divided into downlink cooperative transmission and uplink joint reception...

AI Technical Summary

Problems solved by technology

[0013] To sum up, in the existing central cooperative scheduling method of coordinated multi-point transmission, the amount of information exchange between base stations is very large, and the realization of non-ideal X2 interface link may lead to a large system performance loss

Using the iterative method to realize non-central cooperative scheduling requires iterative scheduling information interaction, which will significantly increase the X2 interface transmission delay when the X2 interface delay is large

Images