Resource distribution method and apparatus

Abstract

The invention discloses a resource allocation method, which comprises the following steps: determining the scheduling priority of each user according to the closeness degree of a packet loss rate and a packet loss threshold of the current real-time service of the user, the closeness degree of a maximal wait packet delay and a maximal tolerance packet delay of the current real-time service of the user and the maximal channel capacity on assignable sub-carriers on a current system of the user; allocating sub-carriers for the user with the highest scheduling priority so that the user with the highest scheduling priority has maximal channel capacity on the sub-carrier; determining the scheduling priorities of other uses on the sub-carriers, and selecting other service users according to sequence of the scheduling priorities from high to low; calculating the channel gain of each space sub-channel selected by each user; and allocating power to each space sub-channel. The invention also discloses a resource allocation device. The method and the device can effectively ensure the Qos requirement for real-time service users in an actual real-time service environment and can improve the throughput of the system.

Description

technical field [0001] The present invention relates to wireless communication technology, in particular to a resource allocation method and device. Background technique [0002] The resource allocation method in the first multiple input multiple output-orthogonal frequency division multiplexing (MIMO-OFDM, multiple input multiple output-orthogonal frequency division multiplexing) system in the prior art discusses the MIMO-OFDM system from the perspective of information theory Resource allocation and beamforming, the goal of this method is to allocate spatially independent users to the same subcarrier to maximize the signal-to-interference-noise ratio (SINR) at the receiving end, thereby maximizing the system capacity, but this The resource allocation method cannot guarantee the user's QoS requirement. Because this method does not consider whether the user's QoS requirements are met when allocating resources, but allocates resources to users who can increase the system capa...

AI Technical Summary

Problems solved by technology

If there is interference from adjacent cells in the system, and the scheduler cannot accurately estimate the interference from adjacent cells, when the scheduler at the base station allocates idle subcarriers in the system to users, the actual data rate that users can obtain may be lower than that allocated by the scheduler. data rate, which will cause the data transfer to fail

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