Resource allocation method and system

Abstract

The invention discloses a resource allocation method and a resource allocation system, which are used for realizing dynamic allocation of Backhaul link resources and improving the resource allocation rationality. The resource allocation method provided by the invention comprises the steps that: a relay node determines a data quantity which is needed to be transmitted from a base station to the relay node through a relay link, and reports the data quantity to the base station; and the base station allocates resources for the relay link according to the data quantity reported by the relay node and channel quality indication information of the relay link.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a resource allocation method and system. Background technique [0002] The relay (Relay) technology is an important feature of the Long Term Evolution-Advanced (LTE-A) system, and the introduction of the relay (Relay) technology can improve system capacity or expand system coverage. [0003] see figure 1 , the relay (Relay) technology is to relay the data transmitted between the evolved base station (eNB) and the user equipment (UE) through the relay node (RN, Relay Node), and the UE at this time can be called the user equipment of the relay node (Relay UE). For the UE that directly transmits data with the eNB without RN relay, it may be called a macro user equipment (Macro UE), or a user equipment of the eNB. The eNB may be called a macro base station. figure 1 RS1, RS2, and RS3 in represent different relay nodes respectively, and BS represents a macro base ...

AI Technical Summary

Problems solved by technology

If too many resources are allocated, on the one hand, resources may be wasted, because even if there is no data sent to the relay node in the macro base station, the resources will not be allocated to the user equipment of the macro base station; on the other hand, if the macro base station allocates a large number of The data sent to the relay node will cause the data in the cache of the relay node to overflow

If less resources are allocated, the user equipment of the relay node cannot increase the rate of data transmission due to the Backhaul link.

[0007] To sum up, when the existing technology allocates resources to Backhaul links, it adopts a fixed resource allocation method, and cannot dynamically allocate resources to Backhaul links, so the resource allocation is not reasonable enough

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