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Channel and power joint dynamic allocation method for D2D communication under cellular network

A cellular network and dynamic allocation technology, applied in the field of wireless communication, to achieve the effect of adapting to changes in channel conditions, low computational complexity, and prolonging battery life

Pending Publication Date: 2022-01-21
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In mobile communication, due to the constant changes of terminal location and channel conditions, more challenges are brought to solve the above problems

Method used

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  • Channel and power joint dynamic allocation method for D2D communication under cellular network
  • Channel and power joint dynamic allocation method for D2D communication under cellular network
  • Channel and power joint dynamic allocation method for D2D communication under cellular network

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Embodiment Construction

[0052] The present invention will be further described below in conjunction with accompanying drawing. refer to figure 1 , a single-cell scenario in the embodiment of the present invention, the interfering link in this scenario is as follows figure 2 shown.

[0053] In order to make the following description clearer and more concise, the following English abbreviations will be used to replace the following professional terms: cellular base station (BS), user equipment (UE), cellular user equipment (CUE), D2D user equipment (DUE), Channel State Information (CSI). Some nouns or abbreviations are only used to describe the practical examples of the present invention, and can be replaced by any form without changing the idea of ​​the present invention.

[0054] In the idea of ​​the present invention, CUE and DUE have no difference in equipment structure, and belong to the same type of typical mobile communication UE, which is only used as a distinction between the two working m...

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PUM

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Abstract

The invention discloses a channel and power joint dynamic allocation method for D2D communication in a cellular network. According to the invention, it is defaulted that cellular inter-cell interference is already in or is enabled to be in an acceptable range by using other inter-cell interference control methods, the model is established in a single cellular cell, and D2D equipment multiplexes uplink resources of cellular user equipment. The main method comprises a channel interference sensing method when a D2D user selects a multiplexed cellular channel; a method for establishing D2D communication performance indexes including D2D equipment performance indexes, and comprehensive power consumption and data transmission rate; a power distribution method for improving D2D communication performance on the premise that the QoS of cellular users is met; and a method for dynamically adjusting a whole resource allocation scheme according to the change of channel conditions. According to the method, the calculation complexity is low, resource allocation can be completed quickly, and time / frequency resources consumed in the resource allocation process are saved.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and specifically relates to a channel resource allocation method for D2D communication under a cellular network. Background technique [0002] In the traditional cellular system, the mutual communication between the cellular users must be carried out indirectly by using the base station, and cannot directly communicate with each other in the licensed frequency band. The centralized working mode of base station control is convenient for resource management and interference control, but there is still room for improvement in spectrum resource utilization. The D2D communication technology consists of a variety of seamlessly integrated wireless access technologies, with the purpose of providing support for direct communication between user equipment in various ways. With the advent of the 5G era, with the rapid increase in the number of smart terminals and the explosive growth in dema...

Claims

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Application Information

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IPC IPC(8): H04W28/02H04W72/04H04W72/08
CPCH04W28/0221H04W28/0236H04W72/044H04W72/542Y02D30/70
Inventor 郭坤祺张家骏钱雨婷陈昱欣胡效康王晨阳
Owner JIANGSU UNIV
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