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Method for spectrum resource allocation between cellular users and d2d users in the same cell

A spectrum resource allocation and cellular user technology, applied in the field of spectrum resource allocation between cellular users and D2D users in the same cell, can solve the problems of insufficient spectrum resources being allocated, difficult to achieve high-efficiency D2D communication, etc., to increase system throughput The effect of maximizing the total amount of spectrum resources, the optimal communication effect and the

Inactive Publication Date: 2016-07-06
SHENZHEN TINNO WIRELESS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such an approach may cause cellular users to occupy most of the spectrum resources, even exceeding their own transmission needs; and it is difficult for D2D users to achieve high efficiency due to insufficient allocation of spectrum resources, especially when the user density is high. There is still a lot of room for improvement in the utilization of spectrum resources in D2D communication

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  • Method for spectrum resource allocation between cellular users and d2d users in the same cell
  • Method for spectrum resource allocation between cellular users and d2d users in the same cell
  • Method for spectrum resource allocation between cellular users and d2d users in the same cell

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Embodiment

[0036] Embodiment: The embodiment of the present invention provides a method for allocating spectrum resources between cellular users and D2D users in the same cell, specifically solving the problem of spectrum resource allocation between cellular and D2D under the D2D network.

[0037] Under this network model, users in the cellular network and users in the D2D network in the same cell use spectrum resources that are orthogonal to each other. For the purpose of maximizing spectrum utilization and system network throughput, the spectrum resource allocation scheme needs to ensure the transmission requirements of the cellular network under limited spectrum resources, and at the same time maximize the total amount of spectrum resources allocated to the D2D network. Problems to be solved by the embodiments of the invention.

[0038] In the embodiment of the present invention, spectrum resources are divided into blocks, and each resource block is orthogonal to any other resource bl...

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Abstract

The present invention relates to a relay-based in-cluster D2D multicast method, the method comprising: S1: partitioning, by a base station, users which have a data sharing demand and a small link loss between each other to one cluster; S2: notifying, by the base station, data distribution in a cluster by means of multicast to each user, and controlling terminal detection link information in each cluster; S3: choosing, by a terminal node in the cluster, an information multicast order based on the demand amount of each data packet, choosing a corresponding sending end based on the occupancy rate of each data packet of each user, and exchanging sharing data in a distributed multicast manner; and S4: acquiring, by a user which has a poor sending end link quality, the sharing data by means of relay retransmission. Provided is an in-cluster information sharing approach of relay assisted multicast communications, which overcomes the effect of a minority of large fading links on transmission rate in a multicast process, and realizes optimization of network performance.

Description

technical field [0001] The invention relates to the field of wireless mobile communication, and provides a method for allocating frequency spectrum resources between cellular users and D2D users in the same cell. Background technique [0002] In recent years, with the increase of mobile devices and applications, a large number of multimedia services have emerged. However, at present, the utilization rate of spectrum resources in the cellular network is not high, that is to say, among the allocated spectrum resources, a large proportion of resources are in an idle state, which causes a great degree of waste of spectrum resources. Device-to-Device (D2D) communication aims at this problem, so that communication can be directly established between users in the same cell, and the information transmission process can be realized by multiplexing cellular spectrum resources. The assisted use of the D2D network under the cellular network not only reduces the transmission delay, impr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/14H04W72/04
CPCH04L12/189H04L12/1877
Inventor 田辉张平陈楠楠王智博
Owner SHENZHEN TINNO WIRELESS TECH
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