Method for simultaneously multiplexing multiple cellular user resources by D2D (Device-to-Device) user pair

A technology for cellular users and users, which is applied in network traffic/resource management, electrical components, wireless communication, etc., and can solve problems such as interference at the receiving end of cellular links

Active Publication Date: 2011-06-01
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If D2D communication is allocated to non-orthogonal channel resources, D2D communication will cause interference to the receiver in the cellular link

Method used

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  • Method for simultaneously multiplexing multiple cellular user resources by D2D (Device-to-Device) user pair
  • Method for simultaneously multiplexing multiple cellular user resources by D2D (Device-to-Device) user pair
  • Method for simultaneously multiplexing multiple cellular user resources by D2D (Device-to-Device) user pair

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Embodiment Construction

[0031] For ease of understanding, the present invention takes a D2D communication network under an LTE-A system as an example to describe a method in which D2D technology is applied to a cellular network and simultaneously multiplexes resources of multiple cellular users. Suppose the system has a bandwidth of 10MHz and works at 2GHz. Suppose there are 10 cellular users in the system, U 1 , U 2 ,...,U 10 ; There is a pair of D2D users, D 1 and D 2 . Here, the number of cellular users and the number of D2D user pairs may be different. The present invention is generally applicable to all network structure models having the basic features in this example. These D2D users can directly communicate under the coordination of the base station, and the D2D user pairs share network resources with the macro cell communication during communication.

[0032] The specific process of determining the resource sharing mode and resource allocation for cellular users and D2D user pairs at th...

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Abstract

The invention provides a technical scheme which is applied to a cellular network for mobile communication. A D2D (Device-to-Device) technology is applied to the cellular network, and thereby a D2D user pair is allowed to simultaneously multiplex multiple cellular network user resources to communicate. In addition, a mode for maximizing system data rate is selected from the scheme and a traditional scheme to realize resource sharing. The scheme proposed by the invention cannot cause great interference to certain cellular user and is easy to realize and relatively flexible to apply in actuality. The invention provides a method for simultaneously multiplexing multiple cellular user resources by single D2D user pair in the cellular network with D2D communication, which can be used for increasing the frequency spectrum efficiency of a system whole (including cellular communication and D2D communication) under the condition of guaranteeing the lowest communication rate of a cellular user. The method provided by the invention has strong actual operability.

Description

technical field [0001] The present invention applies end-to-end (Device-to-Device, D2D) technology to a cellular network, and D2D users communicate with resources of users in the multiplexed cellular network. Or other communication networks that have similar architectural characteristics to the application of the D2D technology in the cellular network. The present invention proposes a method in which a D2D user pair can simultaneously multiplex multiple cellular user resources, which can improve the spectrum efficiency of the overall system (including cellular communication and D2D communication) under the condition of ensuring the lowest communication rate of cellular users. The method proposed by the invention has strong practical operability. Background technique [0002] Device-to-Device (D2D) communication is a new type of technology that allows terminals to communicate directly by reusing resources in a cell under the control of a cellular system. It has the advantag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/06H04W72/04
Inventor 陈力王彬陈晓航张欣常永宇杨大成
Owner BEIJING UNIV OF POSTS & TELECOMM
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