A transmission scheduling method and device

Abstract

The invention discloses a transmission scheduling method and device. The method comprises the following steps: determining terminals to be scheduled and a coordinated cell set of the terminals to be scheduled; dividing cell sub-clusters according to the coordinated cell set of the terminals to be scheduled, wherein the terminals to be scheduled having overlaps in the coordinated cell set and a coordinated cell set of the terminals to be scheduled having overlaps in the coordinated cells are grouped into the same cell sub-cluster, each cell sub-cluster comprising a terminal set and a cell set, and the cell sets in different cell sub-clusters having no overlaps; and carrying out transmission scheduling on the terminals to be scheduled according to the cell sub-clusters obtained through division. The method can reduce complexity of concentrated scheduling, and reduce scheduling time delay.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a transmission scheduling method and device. Background technique [0002] In order to reduce the interference of neighboring cells of users at the edge of cell coverage, the LTE (long term evolution, long term evolution) system introduces a CoMP (coordinated-multiple-point, coordinated multi-point) transmission technology. The CoMP transmission technology is cooperation among multiple geographically separated transmission points (transmission point, TP). When an edge UE (user equipment, also called a terminal) is in the edge area where two cells overlap, the primary cell and the coordinated cell simultaneously send downlink data or receive uplink data to the UE on the same time-frequency resource, from multiple The signals at the transmission point are superimposed in the air, so that the signal at the receiving end is enhanced, while the interference source is red...

AI Technical Summary

Problems solved by technology

[0004] Theoretically, the more cells that participate in centralized scheduling (that is, the larger the size of the cell cluster), the better the interference coordination effect of coordinated transmission, but the higher the complexity of the scheduling algorithm for coordinated transmission

[0005] Centralized scheduling can ensure the maximum flexibility of scheduling and better scheduling performance, but when the number of cells in the cell cluster planned by the operator using CoMP technology is large, and the number of UEs in the system is large, the complexity of centralized scheduling will be relatively large. High, the scheduling delay will be relatively large, which will lead to low priority UEs may not be able to allocate resources in time due to excessive delay, resulting in low resource allocation execution efficiency of centralized scheduling

When these problems cannot be solved, the feasibility of centralized scheduling will be relatively poor

[0006] For the centralized scheduling system, there is currently no technical solution to effectively reduce the complexity of centralized scheduling and reduce the scheduling delay in the industry

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