Method and apparatus for device-to-device communication

A kind of equipment and pre-configured technology, applied in the field of communication, can solve the problems of no coverage, unable to detect base station wireless signal, unable to obtain cellular network signal coverage, etc.

Active Publication Date: 2019-12-27
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The so-called partial coverage means that part of the user equipment participating in the D2D communication may not be able to obtain the signal coverage of the cellular network, for example, the wireless signal sent by the base station cannot be detected, or the received power level of the wireless signal is below a specific threshold. Or the user equipment cannot normally access the cellular network, etc.; no coverage means that none of the user equipment participating in D2D communication can obtain the signal coverage of the cellular network

Method used

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  • Method and apparatus for device-to-device communication
  • Method and apparatus for device-to-device communication
  • Method and apparatus for device-to-device communication

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Embodiment Construction

[0069] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0070] In this embodiment, a method for device-to-device (D2D) communication is provided, figure 1 is a flowchart of a method for device-to-device communication according to an embodiment of the present invention, such as figure 1 As shown, the method includes the following steps:

[0071] Step S102, determining a first resource set for D2D control information transmission according to the received D2D resource configuration parameters and / or stored wireless resource pre-configuration information;

[0072] Step S104, determining a second resource for D2D data transmission;

[0073] Step S106, sending D2D control information in the first resource set, and / or sending D2D data in the second resource....

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Abstract

The present invention discloses a method and device for device-to-device communication, wherein the method includes: determining the D2D control information according to the configuration parameters of the received D2D control signaling and / or the stored wireless resource pre-configuration information A first resource set for transmission; determining a second resource for D2D data transmission; sending D2D control information in the first resource set, and / or sending D2D data in the second resource. The present invention solves the problem of scheduling when UE performs direct communication on the radio resources of the cellular communication system in the related art, especially for the variable ratio of uplink and downlink subframes under different TDD configurations when the cellular system is a TDD system , which ensures the reliability of D2D communication control information and data information transmission and the flexibility of D2D communication scheduling under each TDD configuration for different service types when D2D communication can only use uplink resources.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a method and device for device-to-device (Device-to-Device, D2D for short) communication. Background technique [0002] In a cellular communication system, when there is service transmission between two user equipments (UE for short), for example, the service data from user equipment 1 (UE1) to user equipment 2 (UE2) is first transmitted to The base station (Base Station, or Node B, or evolved (evolved) Node B) of the cell where UE1 is located, the base station transmits the user data to the base station of the cell where UE2 is located through the core network, and the base station then transmits the above service data through the air interface transmitted to UE2. The service data transmission from UE2 to UE1 adopts a similar processing flow. [0003] However, when the user equipment 1 and the user equipment 2 are located in the same cell and relatively close to each other, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W8/14
CPCH04W72/02H04L1/08H04L5/0044H04L5/0053H04W72/20H04W72/51H04W72/30H04L5/14H04W72/0446H04W72/0453
Inventor 吴栓栓李儒岳袁弋非杨瑾戴博
Owner ZTE CORP
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