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

Multi-mode multi-pair d2d communication method and system

A communication method and communication pair technology, which is applied in transmission systems, wireless communication, machine-to-machine/machine-type communication services, etc., can solve the problem that D2D communication does not consider multi-mode and multi-pair scenarios at the same time, achieve and capacity big effect

Active Publication Date: 2021-08-03
HARBIN INST OF TECH
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] None of the existing optimization techniques for mode selection in D2D communication considers multi-mode and multi-pair scenarios at the same time.

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
  • Multi-mode multi-pair d2d communication method and system
  • Multi-mode multi-pair d2d communication method and system
  • Multi-mode multi-pair d2d communication method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0061] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0062] This embodiment is based on such a communication scenario: there are common mobile phone user terminals (Cellular User E q uipment, CUE) and D2D user terminal (Device-to-Device User Equipment, DUE), and there is a potential relay user terminal (Relay User Equipment, RUE) around each D2D communication pair to serve the pair of D2D communication pairs. In a cell, it is assumed that there are M CUEs and K D2D communication pairs, and the number of D2D communication pairs is smaller than the number of CUEs, that is, K<M. When there is no idle channel in the cell, in other words, when all the channels in the cell are occupied by CUEs, the D2D communication pair will reuse the uplink channel in the cellular mobile communication.

[0063] From the perspective of the cooperation form of the two ...

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 multi-mode and multi-pair D2D communication method and system capable of obtaining an optimal D2D mode selection scheme and optimizing cell and capacity, and belongs to the technical field of wireless communication. The multi-mode and multi-pair D2D communication method of the present invention includes: in a cell, the base station detects the channel capacity of each user terminal in real time, and uses the sum capacity as the objective function, and according to the channel status in the cell, the base station controls the D2D communication pair Occupy the dedicated channel or multiplex the uplink of the cellular user, and control the D2D communication pair to select one of the direct connection mode, relay mode or local routing mode for communication. According to the remaining channel conditions and three D2D communication modes, the present invention provides an optimal mode selection scheme for the D2D communication pair in the cell, so that the D2D communication pair can reuse the uplink of the cellular network user in the best way, so that the System and capacity maximum.

Description

technical field [0001] The present invention relates to a D2D communication method, in particular to a multi-mode multi-pair D2D communication method and system, belonging to the technical field of wireless communication. Background technique [0002] With the increasing demand for wireless communication applications, the mobile communication network will face in the next few years: 1000 times the data capacity increase, 10 to 100 times the wireless device connection, 10 to 100 times the user speed requirements, 10 times Long battery life requirements and more. Obviously, the current communication network cannot meet these needs, so 5G technology has emerged, and the exploration of B5G has also been put on the agenda. Faced with the extremely differentiated performance requirements of diverse scenarios, it is difficult to form a universal solution for all scenarios based on a single technology as in the past. [0003] Device-to-Device (D2D) technology is an important techn...

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): H04W76/14H04W4/70H04B17/382
CPCH04B17/382H04W4/70H04W76/14
Inventor 陈晓华刘喜庆
Owner HARBIN INST OF TECH