Device communication method and device

A technology for device communication and target device, which is applied in the field of device communication methods and devices, and can solve problems such as low UE communication efficiency and difficulty in meeting spectrum requirements for wireless resources.

Active Publication Date: 2019-07-23
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the radio resources allocated by the eNB for UEs in the D2D communication mode are difficult to meet the ever-increasing spectrum dem...

Method used

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  • Device communication method and device

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Embodiment Construction

[0079] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0080] This embodiment relates to a device communication method, in which a UE adopting a D2D communication mode transmits data on wireless resources of an unlicensed spectrum. The unlicensed spectrum is used by various wireless access systems in competition, and the wireless access system needs to release the wireless resources of the unlicensed spectrum after a certain period of time, and restart the competition for the wireless resources of the unlicensed spectrum after a certain period of time. access to the system for fair competition and access to wireless resources in unlicensed spectrum. Wherein, the radio access system refers to a system that accesses a network through a RAT (Radio Access Technology, radio access technology). ...

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Abstract

Disclosed are a device communication method and apparatus, which relate to the field of communications. The apparatus comprises: a resource allocation module, a signalling generation module, and a signalling transmission module. The method comprises: when an unlicensed spectrum is available for use, allocating to a UE first wireless resources of the unlicensed spectrum, said spectrum being a spectrum that allows all wireless access systems to compete for use thereof; on the basis of the allocated first wireless resources, generating control signalling corresponding to the UE, the control signalling carrying indication information used to indicate the first wireless resources; transmitting control signalling to the UE so that the UE can utilize the first wireless resources indicated in the indication information to implement data transfer in device-to-device (D2D) communication mode. The present invention solves the problem of eNB allocation of wireless resources to UEs in D2D communication mode being unable to meet the ever-increasing demand for spectrum. The invention thus increases communication efficiency between UEs operating in D2D communication mode.

Description

technical field [0001] The present invention relates to the communication field, in particular to a device communication method and device. Background technique [0002] A D2D (Device to Device, device to device) communication mode refers to a mode in which UEs (User Equipment, user equipment) perform direct communication by multiplexing spectrum resources of a cell. Since UEs can communicate directly, the D2D communication mode can reduce the overhead of control signaling between the base station and the UE, reduce UE transmit power, improve spectrum resource utilization, and increase the capacity of the cellular network. [0003] When using the D2D communication mode for data transmission, the eNB (evolved Node B, evolved base station) allocates radio resources of authorized spectrum for the first UE and the second UE respectively, and sends instructions to the first UE and the second UE The measurement configuration for measuring the authorized spectrum, the first UE and...

Claims

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Application Information

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IPC IPC(8): H04W72/04
CPCH04W72/04
Inventor 张健曾清海
Owner HUAWEI TECH CO LTD
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