A terminal scheduling and grouping method for same-frequency networking

Abstract

The invention brings forward a terminal scheduling and grouping method for a same-frequency network. The method comprises the following steps: a. interference terminals and interfered terminals are classified as an interference terminal set, and other terminals are classified as a non-interference terminal set; b. the interference terminal set is divided into multiple communicated sets which are non-interfering with each other; c. all the terminals are grouped so that the terminals under different base stations in the same communicated set are allocated in different scheduling groups; and during each time of grouping, each base station selects S terminals which are not grouped under the base station in one communicated set, if the number is less than S, selection is continued in the next communicated set and so on until the number is sufficient, and if the terminals in all the communicated sets under the base station are used up and less than S, the terminals are selected from the non-interference terminal sets to supplement so that the number of the terminals under the base station is maximized and close to S, wherein S is the maximum number of the terminals which can be scheduled by the base station. The scheduling groups generated by the method are high in saturation so that a higher bandwidth requirement can be met.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a terminal scheduling and grouping method for same-frequency networking. Background technique [0002] Due to the increasing shortage of frequency resources, the same-frequency networking system is being widely used, but the problem of same-frequency interference between cells caused by the same-frequency networking needs to be solved. A common method is to assign the terminals that generate interference to different groups, and schedule only one group in the same time period. The general method of terminal scheduling grouping in the existing same-frequency networking is: according to a certain order, randomly select S terminals among the terminals controlled by the first base station, where S is the number of terminals that can be scheduled by one base station at the same time, and then Then select no more than S terminals in the second base station so that they ha...

AI Technical Summary

Problems solved by technology

However, this grouping method will result in low grouping efficiency, that is, many base stations in each group cannot select a sufficient number of completely non-interfering terminals (no more than S), so that many base stations cannot achieve the due load As a result, time resources are wasted, and at the same time, high bandwidth requirements cannot be met.

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