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

Device-to-device d2d data transmission method, device and d2d UE

A data transmission method and a technology of a data transmission device, which are applied in the communication field and can solve problems such as D2D service interruption and inability to correctly analyze D2D communication data, etc.

Active Publication Date: 2019-11-26
ZTE CORP
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The present invention provides a device-to-device D2D data transmission method, device and D2D UE, so as to solve the problem of D2D service interruption in the related technology and the inability of the receiver D2D UE to correctly parse the D2D communication data.

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
  • Device-to-device d2d data transmission method, device and d2d UE
  • Device-to-device d2d data transmission method, device and d2d UE
  • Device-to-device d2d data transmission method, device and d2d UE

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0145] This preferred embodiment describes a method for a sender D2D UE to send a PDCP layer encryption indication to a receiver D2D UE. Figure 14 It is a flow chart according to the second preferred embodiment of the present invention, such as Figure 14 As shown, the process includes the following steps:

[0146] Step 1. The D2D sender UE determines whether to encrypt the PDCP data PDU according to the characteristics of the D2D communication service; or, the D2D communication sender UE determines whether to perform PDCP layer encryption according to the configuration of the base station, and the base station can send it for D2D through RRC dedicated signaling. or, the D2D communication sender UE determines whether to perform PDCP layer encryption according to the configuration of the ProSe server or the application server;

[0147] In step 2, the D2D communication sender UE sends PDCP encryption indication information to the D2D communication receiver UE. The D2D communi...

Embodiment 3

[0154] This preferred embodiment describes a method for a UE in D2D communication to obtain available D2D resources during the process of moving from outside the coverage of the cellular network to within the coverage of the cellular network. Figure 15 is a schematic diagram of a scene according to a preferred embodiment of the present invention, such as Figure 15 As shown, the D2D UE1 outside the coverage of the cellular network is conducting D2D communication, and it uses the pre-configured mode 2 resource pool (obtaining resources from the resource pool through competition) to send D2D communication data. In addition, the D2D UE1 moves from the area outside the coverage of the cellular network to the coverage area of ​​the cell under the base station 1 . Figure 16 It is a schematic diagram of the method according to the third preferred embodiment of the present invention, such as Figure 16 As shown, D2D UE1 goes through the following stages during the moving process, a...

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 device-to-device D2D data transmission method, device and D2D UE, wherein the method includes: determining whether to indicate whether the user equipment UE, the sender of the D2D communication, performs a PDCP header on the packet data convergence protocol PDCP protocol data unit PDU PDCP header compression indication information for compression processing; and / or PDCP encryption indication information for indicating whether the D2D communication sender user equipment UE performs PDCP encryption processing on the packet data convergence protocol PDCP protocol data unit PDU; to the D2D communication receiver UE Sending the PDCP header compression indication information and / or the PDCP encryption indication information solves the problem in the related art that the receiver D2D UE cannot correctly parse the D2D communication data, and then achieves that the D2D communication receiver UE obtains the PDCP header compression indication information And / or the PDCP encryption instruction information can correctly analyze the effect of the D2D communication data.

Description

technical field [0001] The present invention relates to the communication field, and in particular, relates to a D2D data transmission method and device for a backup device and a D2D UE. Background technique [0002] With the development of wireless multimedia services, people's demand for high data rate and user experience is increasing, which puts forward higher requirements on the system capacity and coverage of traditional cellular networks. On the other hand, the popularity of applications such as social networks, short-distance data sharing, and local advertisements makes people have an increasing demand for understanding and communicating with nearby interested people or things, for example, Proximity Services (PS for short). Traditional cell-based cellular networks have obvious limitations in terms of high data rate and proximity service support. Against this background of demand, Device-to-Device (Device-to-Device, referred to as D2D) technology came into being. T...

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
Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/70H04W28/06H04W76/10
CPCH04W72/00H04W76/10
Inventor 黄莹陈琳塞尔吉奥·帕洛拉里
Owner ZTE CORP