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Method and device of device-to-device communication

A device and pre-configured technology, applied in the field of communication, can solve problems such as undetectable wireless signals of base stations, no coverage, and failure of user equipment to access the cellular network normally

Active Publication Date: 2016-03-30
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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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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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 of device-to-device (D2D) communication. The method provided by the invention comprises: determining a first resource set used for D2D control information transmission according to the configuration parameters of a received D2D control signaling and / or stored radio resource pre-configuration information; determining a second resource used for D2D data transmission; sending D2D control information in the first resource set, and / or sending D2D data in the second resource. According to the invention, the scheduling problem when user equipment (UE) is configured to perform direct communication on a radio resource of a cellular communication system in the prior art is solved, especially in the condition that each configuration has different proportions of uplink subframes and down subframes when the cellular communication system is a TDD (Time Division Duplex) system, therefore when D2D communication only use an uplink resource, the reliability of the transmission of D2D communication control information and data information of different types of business in each D2D configuration and the flexibility of the D2D communication scheduling are ensured.

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 UE1 through the air interface The base station (BaseStation, or NodeB, or evolved (evolved) NodeB) of the cell where it is located transmits the user data to the base station of the cell where UE2 is located through the core network, and then the base station transmits the above service data to UE2 through the air interface. 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, the a...

Claims

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Application Information

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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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