Unlock instant, AI-driven research and patent intelligence for your innovation.

Method and device for supporting device-to-device d2d communication in a wireless communication system

A technology of a wireless communication system and user equipment, applied in the field of supporting device-to-device communication in a wireless communication system, capable of solving problems such as non-existence of D2D communication

Active Publication Date: 2020-01-24
ALCATEL LUCENT SHANGHAI BELL CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing technology there is no method for solving efficient transmission for D2D communication in cellular infrastructure

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and device for supporting device-to-device d2d communication in a wireless communication system
  • Method and device for supporting device-to-device d2d communication in a wireless communication system
  • Method and device for supporting device-to-device d2d communication in a wireless communication system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] Embodiments of the present invention are described in detail below with reference to the accompanying drawings. figure 1 A diagram showing D2D communication under a cellular system in a single cell scenario, where UE1, UE2 and UE3 are D2D UEs, and UE4 and UE5 are cellular UEs. Those skilled in the art should understand that, figure 1 The number of UEs in the cellular system shown in FIG. 1 is illustrative, and in actual applications, more or fewer UEs may be included.

[0032] In conventional cellular communication, if UE1 wants to send data to UE2, UE1 should send the data to base station eNB in ​​uplink time-frequency resource, and then eNB forwards the data to UE2 in downlink time-frequency resource. For ease of description, it is assumed here that UE1 needs to transmit data to UE2. However, those skilled in the art should understand that similar operations can be directly applied to the situation where UE2 needs to send data to UE1. figure 2 A general transmissi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention provides a method for supporting device-to-device (D2D) communication in a wireless communications system. The method comprises: receiving, from a first user equipment, a resource request message for D2D communication; and responding to the resource request message, separately sending a first physical downlink control channel and a second physical downlink control channel to the first user equipment and a second user equipment, and proving signaling for indicating a sender and a receiver of the D2D communication.

Description

technical field [0001] Embodiments of the present invention relate to the field of wireless communication, and more particularly, to a method and device for supporting device-to-device communication in a wireless communication system. Background technique [0002] The idea of ​​device-to-device (D2D) communication has been proposed in recent years. D2D communication is a short-distance service different from the conventional cellular communication mode. For conventional cellular communication systems, communication between user equipments (UEs) takes place via UE-eNodeB-UE even when they are in close proximity to each other. In order to save cellular resources and reduce communication delays when the aforementioned communicating parties are very close to each other, a cellular-controlled D2D communication system is introduced as a potential short-range technology for LTE-A. Now 3GPP has launched a new research project to develop D2D technology-related standards for proximi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04W72/04
CPCH04W72/04H04W76/14
Inventor 孟艳郑武刘铮蒋琦倪威沈钢
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD