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A d2d data transmission method and device

A data transmission method and data transmission technology, applied in the directions of network data management, connection management, network topology, etc., can solve the problem of inability to send data by TxUE, and achieve the effect of reducing the influence of the "far-near" effect

Active Publication Date: 2019-01-25
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a D2D data transmission method and equipment to solve the problem that the "far-near" effect cannot correct the data sent by the Tx UE with a long distance

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  • A d2d data transmission method and device
  • A d2d data transmission method and device
  • A d2d data transmission method and device

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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] An embodiment of the present invention provides a D2D data transmission method, such as figure 1 As shown, it specifically includes the following operations:

[0099] Step 100, the D2D data sending end (ie Tx UE) determines the status of each sending opportunity in the sending window in the same way as the D2D data receiving end (ie Rx UE).

[0100] Wherein, the sending window may refer to physical resources within a predetermined range of time domain and frequency domain, or may refer to a predetermined length of time domain.

[0101] The sending window is evenly divided into multiple sending opportunities, and the states of sending opportunities are divided into sending data state and silent state. Preferably, the sending window is divided into multiple sending opportunities in the time domain. If the...

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PUM

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Abstract

The invention discloses a D2D data transmission method and equipment. The method includes: the D2D data sending end determines the status of each sending opportunity in the sending window in the same manner as the D2D data receiving end, the sending window is evenly divided into multiple sending opportunities, and the sending opportunity status includes the sending data status and silent state; in the sending window, each sender in the sending data state sends data associated with the same D2D data to the D2D data receiving end. In the technical solution provided by the embodiments of the present invention, the D2D data sender sends data or silences on different resources (send opportunities), so that different D2D data senders stagger resources, thereby reducing the impact of the "far-near" effect.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a device-to-device (Device-to-Device, D2D) data transmission method and device. Background technique [0002] 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 forwarding through a central node (ie, a base station). [0003] In D2D research, several typical D2D transmission scenarios include: In Coverage-Single-Cell, In Coverage-Multi-Cell, Partial Coverage and Outof Coverage D2D transmission. [0004] Long Term Evolution (LTE) D2D technology refers to the D2D discovery and communication process that is controlled by the LTE network and works in the LTE licensed frequency band. On the one hand, it can give full play to the advantages of D2D technology, and at the same time, the control of LTE network can also overcome so...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W8/24
CPCH04W72/02H04W76/14H04W72/0446H04W72/1263H04W72/535H04W84/18H04W88/02
Inventor 赵锐高秋彬陈文洪彭莹
Owner DATANG MOBILE COMM EQUIP CO LTD
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