Voice data dynamic delay scheduling method and base station

Abstract

The invention relates to a voice data dynamic delay scheduling method and a base station. The dynamic delay scheduling method comprises the steps of judging whether a semi-persistent scheduling mode is opened or not and whether UE (user equipment) supports the semi-persistent scheduling mode or not; carrying out scheduling in the semi-persistent scheduling mode if the semi-persistent scheduling mode is opened and the UE supports the semi-persistent scheduling mode; judging whether a dynamic delay scheduling mode is opened or not if the semi-persistent scheduling mode is not opened or the UE does not support the semi-persistent scheduling mode, if yes, binding two continuous voice data packets to carry out scheduling in the dynamic delay scheduling mode; and if no, carrying out scheduling in a dynamic scheduling mode. Through adopting the dynamic delay scheduling method and the base station provided by the invention, half of the overhead of PDCCH (physical downlink control channel) resources is reduced. Meanwhile, a high modulation and coding level is kept, and the flexibility of voice service scheduling is improved, thereby being conducive to reasonable distribution of channel resources, and improving the user capacity of the base station.

Description

technical field [0001] The invention relates to a voice data dynamic delay scheduling method and a base station, belonging to the technical field of communication. Background technique [0002] Long Term Evolution (LTE for short) is an all-IP-based wireless communication technology. With its high-speed uplink and downlink data transmission rates, flexible bandwidth configuration, and simplified network architecture, it has become the most powerful competitor of the 4G standard. . The resources of the LTE radio interface are shared, and signaling and data simultaneously compete for these shared resources for transmission. At present, radio resource scheduling schemes that may be used for Voice over LTE (VoLTE, VoLTE for short) services include dynamic scheduling, semi-persistent scheduling, and group scheduling. Dynamic scheduling is a general scheduling method. For each physical resource block (Physical Source Block, abbreviated as PRB), a basic unit of wireless resource s...

AI Technical Summary

Problems solved by technology

It can be seen that dynamic scheduling and semi-persistent scheduling have their own advantages and disadvantages. Dynamic scheduling can schedule higher modulation and coding levels, but the PDCCH resource overhead is large. Semi-persistent scheduling has the smallest PDCCH resource overhead, but the highest MCS level for scheduling is 15.

Both the dynamic scheduling method and the semi-persistent scheduling method are easy to implement, but the flexibility is poor, and the advantages of the semi-persistent scheduling method and the dynamic scheduling method cannot be used at the same time, and the PDCCH resources are not properly allocated, which reduces the overall capacity of the base station.

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