Method, device and base station for allocating backhaul link resources for multi-hop users

Abstract

The invention provides a method and a device for allocating backhaul link resources to multi-hop users and a base station, and relates to the technical field of wireless communication. The method comprises the following steps: receiving first information of a subordinate relay station and the multi-hop users served by the relay station; sequencing the priorities of all the multi-hop users served by the relay station in a combined way according to the first information; and scheduling the multi-hop users one by one according to the priorities in order to finish resource allocation. Through adoption of the method provided by the invention, the problem of unreasonable resource allocation in the prior art is solved; the resource utilization ratio of a backhaul link is increased; and the service demands of the multi-hop users are effectively met.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method, device and base station for allocating backhaul link resources for multi-hop users. Background technique [0002] The relay (Relay) technology has become a key technology of the advanced long-term evolution (LTE-A) system due to its characteristics of increasing cell coverage, improving system capacity, and providing hotspot area coverage. After the introduction of the relay, the traditional network structure has changed, and the base station (eNodeB) can directly or indirectly communicate with the user equipment (UE) through the relay station (RN). [0003] Users who directly communicate with the base station are called one-hop users, and users who indirectly communicate with the base station through relay stations for data transfer are called two-hop users or multi-hop users. Compared with the direct link between the one-hop user and the base s...

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Problems solved by technology

[0006] However, there are certain problems in the above existing technologies. In the first fixed resource allocation method, the base station allocates uniform wireless resources to each relay station, which will cause unbalanced wireless resource utilization. For example, there is a large User data requirements, while the base station can only send part of the data to the relay station, and another relay station has only a small amount of user data requirements, which will cause waste of this part of wireless resources

[0007] On the Backhaul link, because the relay station only assumes the role of data forwarding and is not a real data receiving end, a relay station will forward data for multiple user equipments serving it. For the second wireless resource allocation method, there will be The service priority of the user under a certain relay station is high, but because the priority of the relay station is low, the base station does not allocate wireless resources for the relay station, and the user cannot get the service

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