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D2D resource allocation method in cellular network

A technology for resource allocation and cellular networks, applied in advanced technology, electrical components, climate sustainability, etc., to solve problems such as underutilization of frequency resources

Inactive Publication Date: 2017-06-06
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there is resource allocation for the orthogonal mode, the resources between the D2D pairs are also orthogonal, and the frequency resources are not fully utilized

Method used

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  • D2D resource allocation method in cellular network
  • D2D resource allocation method in cellular network
  • D2D resource allocation method in cellular network

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Embodiment Construction

[0061] The present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

[0062] like image 3 and Figure 4 as shown, image 3 The meaning of the parameters in the middle is: M is the number of CUEs, N is the number of 2D communication pairs, g c_i is the channel response from UE to base station, g d_j is the channel response from the transmitter to the receiver of the D2D pair j, g d_jk is the channel response between D2D pairs j and k, α is the proportion of resources allocated to CUE, and β is the proportion of resources allocated to D2D. The D2D resource allocation method in the cellular network of the present invention includes the following steps: the first step, UE measurement report; the UE measurement report is that the base station can obtain the interference information between D2D pairs through the UE measurement report; first, the base station assigns each D2D communication pair A unique D2D commu...

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Abstract

The invention discloses a method for allocating D2D resources in a cellular network, comprising the following steps: the first step, UE measurement and reporting; the second step, the base station composes a picture to form an atlas; the third step, coloring the picture to form a set; the fourth step , resource allocation, resource allocation is after the coloring of the graph, the number of colors m is obtained, that is, all D2D pairs are divided into m subsets, and the number of D2D pairs in each subset is not equal, and each subset uses the same subband resource; then use A utility-based resource allocation approach to maximize frequency utilization. Compared with the prior art, the D2D resource allocation method in the cellular network of the present invention has detailed statistics and detailed analysis, and can control various situations and estimate all possibilities.

Description

technical field [0001] The invention belongs to the field of communication, in particular to a method for allocating D2D resources in a cellular network. Background technique [0002] With the rapid development of the mobile Internet, the mobile business volume is increasing rapidly, the requirements for speed and seamless transmission are getting higher and higher, and the demand for bandwidth is constantly increasing, but the bandwidth resources that can be used by the mobile network are limited. To solve the contradiction between business growth and limited resources, it is necessary to constantly explore new mobile communication technologies. One of the effective ways is to introduce D2D (Device-to-Device) communication technology into the cellular network, that is, mobile devices that are relatively close in the ground can communicate directly without following the traditional "device-to-device-to-device" approach. "Communication mode. The application of D2D communica...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/00H04W72/04
CPCY02D30/70
Inventor 熊文汇张建昌
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA