Communication method and device for time division duplex system

Abstract

The embodiment of the invention provides a communication method and device for a time division duplex system for effectively guaranteeing normal communication of a base station and user equipment and relates to the technical field of communication. The communication method comprises the steps that: a first up/down link sub-frame configuration is regulated into a second up/down link sub-frame configuration; a sub-frame corresponding to the second up/down link sub-frame configuration is intersected with a sub-frame corresponding to the first up/down link sub-frame configuration; the intersection is a collection of sub-frames with the same sub-frame index and in the same sub-frame type; the intersection comprises at least one uplink sub-frame and at least one downlink sub-frame; and communication with the user equipment is carried out in at least one uplink sub-frame and at least one downlink sub-frame of the intersection based on a same timing relationship with the timing relationship corresponding to the first up/down link sub-frame configuration. The communication method and the communication device are suitable for wireless communication systems.

Description

technical field [0001] The present invention relates to the technical field of communication, and in particular to a communication method and device for a time division duplex (Time division duplex, TDD) system. Background technique [0002] In a wireless communication system, a base station transmits data and control information to user equipment UE (User Equipment) on the downlink, and receives data and control information from the user equipment on the uplink. Similarly, the user equipment transmits data and control information for the base station on the uplink, and receives data and control information from the base station on the downlink. Wherein, the communication between the base station and the UE may be performed in a TDD manner. For a TDD wireless communication system, downlink transmission and uplink transmission use the same carrier, but downlink transmission and uplink transmission are in different time slots (or subframes), that is, downlink transmission and...

AI Technical Summary

Problems solved by technology

For UEs that can only determine the configuration of uplink and downlink subframes based on system information, such as UEs in LTE Release 8 / 9 / 10 (Release 8 / 9 / 10), system information is updated semi-statically, and the update period of system information is relatively short. Therefore, if the base station dynamically adjusts the uplink and downlink subframe configuration, these UEs cannot know the dynamically adjusted uplink and downlink subframe configuration of the base station in real time, and will continue to receive data according to the uplink and downlink subframe configuration determined by the system message and transmission, therefore, the dynamic adjustment of the uplink and downlink subframe configuration by the base station may lead to the failure of normal communication between the UE and the base station

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