Data transmission method, host unit, expanding unit and base station system

Abstract

The invention relates to a data transmission method, a host unit, an expansion unit, a base station system and a readable storage medium. The method is applied to the base station system, the base station system comprises a host unit, a plurality of expansion units and a plurality of remote unit, the host unit is in communication connection with the plurality of expansion units, and each expansion unit in the plurality of expansion units is in communication connection with at least one far-end unit. The method comprises the steps of using the host unit to determine a target expansion unit corresponding to user equipment from a plurality of expansion units according to uplink signals received from the plurality of expansion units respectively, wherein the uplink signal sent by each extension unit is used for indicating the signal quality condition between the far-end unit connected with the extension unit and the user equipment; sending the indication information to the target expansion unit, wherein the indication information is used for indicating the target expansion unit to send uplink data of the user equipment received from the remote unit to the host unit; and receiving the uplink data sent by the target expansion unit. By adopting the method, the requirement for the front transmission bandwidth can be reduced.

Description

technical field [0001] The present application relates to the technical field of communication, in particular to a data transmission method, a host unit, an extension unit, a base station system and a readable storage medium. Background technique [0002] At present, in order to improve signal coverage, a base station system is proposed, and the base station system includes: a host unit, multiple extension units, and multiple remote units. Wherein, the host unit communicates with a plurality of extension units, and one extension unit communicates with a plurality of remote units. [0003] In the traditional technology, when a host unit in a base station system communicates with a user equipment (UE), it needs to send data to or receive data from the UE through all extension units and all remote units in the base station system. Specifically, taking the uplink process as an example, each remote unit in the communication system receives uplink data at the UE's uplink time-fre...

AI Technical Summary

Problems solved by technology

[0004] It can be seen that the master unit needs to receive and process all the data received by the remote unit on the uplink time-frequency resource position of the UE, so the traditional technology has the problem of too high requirements on the fronthaul bandwidth between the master unit and the extension unit

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