A method, system and device for realizing d2d communication

Abstract

The embodiment of the present invention discloses a method, system and device for implementing D2D communication, which are used to implement D2D communication to meet existing half-duplex communication constraints under the condition that there are D2D terminals in different cells in the same group. The present invention includes: the current D2D terminal obtains the group information of the D2D terminal in the neighboring cell, the current D2D terminal and the D2D terminal in the neighboring cell belong to the same group within a preset range, and the group information includes at least the D2D terminal in the neighboring cell The group identifier of the group to which the current D2D terminal belongs; the current D2D terminal sends the group information to the serving base station, so that the serving base station determines a scheduling policy according to the group information, and when the current D2D terminal sends data, according to the The scheduling strategy schedules the current D2D terminal to send data, and the D2D terminals in the neighboring cell in the same group do not send data according to the scheduling strategy when the current D2D terminal sends data.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method, system and device for realizing device-to-device (Device to Device, D2D for short) communication. Background technique [0002] D2D communication is a communication technology introduced in the 3rd Generation Partnership Project (3GPP for short). In the Long Term Evolution (LTE for short) network architecture, it allows two close Each terminal directly communicates with each other through a specific channel to improve spectrum utilization and network capacity. Among them, the D2D communication uses the same resources as the cell terminals, and the D2D communication terminals are also under the control of the cell base station, and the cell base station allocates D2D communication resources and controls the transmission power of the D2D communication, etc., so as to ensure that the D2D communication is effective for the cell. Interference caused b...

AI Technical Summary

Problems solved by technology

If the terminals in the same group belong to different cells, the cell base station only knows the communication status of its own cell, but not the communication status of other cells, it is possible that multiple terminals in the same group may send data at the same time. At present, there is no solution to solve this problem under the premise of meeting the above-mentioned D2D communication technical specifications.

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