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Method and equipment for D2D communication

A communication method and equipment technology, which can be used in wireless communication, network topology, electrical components, etc., and can solve problems such as D2DUE resource conflict.

Active Publication Date: 2015-07-22
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to provide a D2D communication method and equipment to solve the problem of resource conflicts when D2D UEs compete for resources

Method used

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  • Method and equipment for D2D communication
  • Method and equipment for D2D communication
  • Method and equipment for D2D communication

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Embodiment Construction

[0097] The technical solutions provided by the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0098] In the embodiment of the present invention, the communication frame structure of the D2D communication includes a control area and a data area.

[0099] The control area can be divided into multiple control channels, and the data area can be divided into multiple data channels. Correspondingly, different sending end devices (that is, Tx UEs) transmit control messages on different control channels respectively.

[0100] by figure 2 The communication frame shown is taken as an example. A communication frame is divided into a control area and a data area in the time domain, and the data area is further divided into multiple data frames in the time domain. In order to achieve superframe synchronization, the superframe structure of D2D communication is as follows: image 3 As shown, a superframe is divided ...

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Abstract

Disclosed are a D2D communication method and device. The method comprises: sending, by a sending-end device, a control message in a control region of a current communication frame, the control message at least comprising resource indication information, and monitoring control messages, at least comprising the resource indication information, of other sending-end devices in the control region of the current communication frame, the resource indication information being used for indicating a data channel in a data region of the current communication frame occupied by the sending-end device; and according to the monitored resource indication information, sending D2D data on the data channel occupied thereby. In the technical solution provided in the embodiments of the present invention, the communication frame for D2D communications comprises a control region and a data region, wherein the data region further comprises a plurality of data channels. By way of mutually monitoring a control message of a control region by different sending-end devices, the resource conflict caused by competition can be avoided.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a D2D communication method and device. Background technique [0002] Device-to-Device (Device-to-Device, D2D), that is, terminal direct technology, refers to a method in which adjacent user equipment (User Equipment, UE) can transmit data through a direct link within a short distance without passing through The central node (that is, the base station) performs forwarding. [0003] In the research of D2D, the following four scenarios are mainly considered, and each scenario can appear in combination: [0004] Scenarios out of coverage (Out of Coverage): such as Figure 1A As shown, both UE1 and UE2 are out of coverage; [0005] Partial coverage (Partial Coverage) scene: such as Figure 1B As shown, UE1 is within the coverage of the cell (In Coverage), and UE2 is outside the coverage of the cell; [0006] Scenario of In Coverage-Single-Cell: such as Fig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04
CPCH04W24/02H04W74/002H04W74/02H04W74/0816H04W84/18H04W72/02H04W72/0446H04W72/20H04W72/56H04W72/542H04W88/04
Inventor 赵锐高秋彬陈文洪彭莹
Owner DATANG MOBILE COMM EQUIP CO LTD
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