User scheduling method, user scheduling device and user scheduling system

Abstract

The invention discloses a user scheduling method, a user scheduling device and a user scheduling system, and relates to communication technology. A suitable coordination area is determined for each user; frequency band resource used by each coordination area is determined; scheduled users are determined according to the proportional fair priority of the users in the coordination areas; and base stations in the coordination areas carry out coordinated multi-point multi-user multi-input multi-output (CoMP-MU-MIMO) transmission on the determined users. As frequency band resource used by each coordination area is determined after the coordination area of each user is determined, coordination among the coordination areas is reduced, and the processing complexity is lowered. Meanwhile, as the coordination area of each user is a coordination area suitable for the user, the user transmission rate is improved.

Description

technical field [0001] The present invention relates to communication technology, in particular to a user scheduling method, device and system. Background technique [0002] CoMP (Coordinated multi-point transmission, coordinated multi-point transmission) can effectively reduce interference between cells and improve performance of cell edge users. After the CoMP operation, the inter-cell interference in the cooperation area will be reduced, but the interference between the cooperation areas still exists, and the performance of the users at the edge of the cooperation area is still relatively poor, and the interference between the cooperation areas seriously affects the system performance. Overall performance and fairness among users. On the other hand, in the CoMP-MU-MIMO transmission mode, multiple base stations in several cells transmit data to multiple users at the same time, and the interference between these users restricts the improvement of CoMP performance to a cert...

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Problems solved by technology

[0013] It can be seen that among the above three clustering methods, the network-determined clustering method cannot adapt to rapidly changing channel conditions, and does not consider the differences and particularities between users. The same frequency interference is serious, so the cooperation gain is relatively limited

In the user-determined clustering method, the cooperation areas of different users may overlap with each other, so in the whole network, the number of overlapping cooperation areas will be large, and the coordination between each cooperation area is required when scheduling, so it becomes It has become the coordination of the entire networ

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