A multi-user sps resource allocation method based on qos

Abstract

The invention discloses a multi-user SPS resource allocation method based on QOS. The method comprises steps of: S1, computing PRBs used by the uplink and the downlink of SPS service according to channel quality and the QOS borne by the SPS service; S2, performing downlink resource allocation and acquiring a downlink subframe resource pool at the time closest to a current scheduling subframe; S3, searching a node in a resource list that has been allocated to the downlink subframe resource pool and determining whether idle resources exist in the node, wherein the node has a period the same as that of the current SPS service and a PRB recorded in the node is more than or equal to the PRB used by the current SPS service; S4, if yes, adding a user identity of the SPS service into a user list of a correpsnding node; and S5, if not, determining whether the resource pool reaches a available threshold, if not, allocating a new resource according to the PRB used by the current SPS service in order to create a new resource node and returning back to the S2.

Description

technical field [0001] The invention relates to a multi-user SPS resource allocation method, in particular to a QoS-based multi-user SPS resource allocation method, belonging to the technical field of communication. Background technique [0002] The LTE (Long Term Evolution, Long Term Evolution) system uses shared resources to schedule user data. This scheduling method can greatly utilize wireless communication resources, but at the same time, this method requires a large control information overhead. In the LTE system, all voice services in the circuit domain are canceled and replaced by VoIP services in the data domain. However, the number of voice users is often relatively large, and LTE uses a shared resource allocation and scheduling method. Each transmission requires related For control information, since the overhead of the control information is too large, the number of users that the LTE system can support simultaneously is limited. Therefore, LTE introduces a semi...

AI Technical Summary

Problems solved by technology

The existing SPS resource allocation algorithm needs to search all resources in the longest cycle time period in order to find resources that do not conflict with other allocated SPS services, which takes a lot of time and increases the load on the system

In large-capacity scenarios, resource allocation is chaotic, the allocation success rate is not high, and resource fragments are prone to occur, resulting in waste of resources

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