Device-to-Device communication method, apparatus and system

A technology for device communication and communication method, applied in the field of D2D communication methods, devices and systems, and can solve the problems of consuming wireless spectrum resources and suboptimal cellular communication methods, etc.

Active Publication Date: 2015-11-25
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In a cellular communication system, when there is service transmission between two user equipments (UE, UserEquipment), when UE1 and UE2 are located in the same cell and are relatively close to each other, although the two UEs are covered by the cell of the same base station, Data transmission still needs to be transferred through the core network, and one data transmission still consumes wireless spectrum resources on the two links
It can be seen that the above cellular communication method is obviously not optimal

Method used

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  • Device-to-Device communication method, apparatus and system
  • Device-to-Device communication method, apparatus and system
  • Device-to-Device communication method, apparatus and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0197] This embodiment provides a device-to-device communication method, such as figure 1 shown, including:

[0198] Step 101: Receive a D2D first resource configuration message from a network node;

[0199] Step 102: Determine a D2D resource set according to the first resource configuration message;

[0200] Step 103: Send the device-to-D2D signal in the resource set.

[0201] The step 103 may be specifically determining the location of a dedicated resource unit for sending a D2D signal from the resource set, and sending the D2D signal in the dedicated resource unit.

[0202] Here, the resource set is used for the signal transmission of the device-to-device communication; the resource set is periodically distributed, and each resource period includes a plurality of resources divided by time division multiplexing and / or frequency division multiplexing. resource unit.

[0203] Wherein, the dedicated resource unit includes a plurality of resource units discretely distributed...

Embodiment 2

[0237] This embodiment provides a device-to-device communication method, such as figure 2 shown, including:

[0238] Step 201: Generate a D2D first resource configuration message;

[0239] Step 202: Send the D2D first resource configuration message to a D2D user equipment (UE), where the first resource configuration message is at least used to allocate a D2D resource set, and the resource set is used for signal transmission of the device-to-device communication . Wherein, the resource set is distributed periodically, and each resource period includes a plurality of resource units divided by time division multiplexing and / or frequency division multiplexing; the resource set is used for D2D user equipment to send D2D signals.

[0240] The resource set is used for D2D user equipment to transmit D2D signals, including: the D2D user equipment determines the location of a dedicated resource unit for sending D2D signals from the resource set, and sends the D2D signal in the dedica...

Embodiment 3

[0271] This embodiment provides a device-to-device communication method, such as image 3 As shown, the method includes:

[0272] Step 301: Receive a D2D resource configuration message from a network node;

[0273] Step 302: Determine a resource set for the D2D communication according to the configuration message;

[0274] Step 303: Detect D2D signals in the resource set.

[0275] Wherein, the configuration message at least includes: indicating a set of resources used to detect the D2D signal, the set of resources is distributed periodically, and each resource period includes time-division multiplexing and / or frequency-division multiplexing. correspondingly, within one resource period, the D2D signal is transmitted in multiple resource units, and the multiple resource units are discretely distributed in the time domain and / or frequency domain according to preset rules.

[0276] Wherein, the discrete distribution in the frequency domain means that the frequency positions occ...

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Abstract

The invention discloses a device-to-device (D2D) communication method, apparatus and system, wherein the method includes: receiving a first resource configuration message of the D2D from a network node, and determining D2D resource sets according to the first resource configuration message; and transmitting device to D2D signals in the resource sets, wherein the resource sets are distributed periodically, and each resource period includes a plurality of resource units divided by a time division multiplexing mode and/or a frequency division multiplexing mode.

Description

technical field [0001] The present invention relates to a device-to-device (D2D) communication technology in the field of mobile communication, and in particular to a D2D communication method, device and system. Background technique [0002] In a cellular communication system, when there is service transmission between two user equipments (UE, UserEquipment), when UE1 and UE2 are located in the same cell and are relatively close to each other, although the two UEs are covered by the cell of the same base station, Data transmission still needs to be relayed through the core network, and one data transmission still consumes wireless spectrum resources on two links. It can be seen that the above cellular communication method is obviously not optimal. With the diversification of mobile communication services, for example, the popularization of applications such as social networking and electronic payment in wireless communication systems, the demand for service transmission bet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04
CPCH04W72/04
Inventor 吴栓栓袁弋非张峻峰贺海港黄双红
Owner ZTE CORP
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