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Method and device for D2D cluster retransmission

A retransmission and clustering technology, applied in the field of communication, can solve the problem of increasing the control overhead of the base station to obtain the link information of the mobile terminal, and achieve the effect of promoting energy consumption balance, reducing the control overhead and prolonging the network life.

Inactive Publication Date: 2017-12-01
SHENZHEN TINNO WIRELESS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this cluster head selection method needs to increase the information capacity of the message sent by the terminal to the base station, so that the remaining energy value can be carried in the message and sent, thus increasing the control overhead when the base station obtains the link information of the mobile terminal

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  • Method and device for D2D cluster retransmission
  • Method and device for D2D cluster retransmission
  • Method and device for D2D cluster retransmission

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Embodiment Construction

[0078] In order to better understand the technical solutions of the present invention, the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0079] It should be understood that the described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0080] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a," "the," and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise.

[0081] Depending on the context, the word "if" a...

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Abstract

Embodiments of the invention provide a method and device for D2D cluster retransmission, and relate to the technical field of communications. The method includes the steps of sending, by a mobile terminal, service request information to a base station, the service request information carrying a remaining energy level and a geographic location of the mobile terminal; then, establishing, by the base station, a D2D cluster according to the remaining energy level and the geographic location of the mobile terminal; next, broadcasting, by the base station, clustering information of the D2D cluster to the mobile terminal, so that the mobile terminal in the D2D cluster acquires its own node type in the cluster; and accordingly, performing, by the mobile terminal, a corresponding retransmission operation collaboratively with other mobile terminals in the D2D cluster according to the node type. The technical scheme provided by the invention can effectively reduce the control overhead and prolong the network lifetime of the D2D cluster.

Description

【Technical field】 [0001] The present invention relates to the field of communications, and in particular, to a method and device for D2D cluster retransmission. 【Background technique】 [0002] With the rapid development of communication technology, more and more mobile terminals are flooding into the network, which increases the utilization of spectrum resources. However, the spectrum resources available to mobile terminals are very limited. Nearby terminals communicate with each other, and D2D (device to device) communication has become a current research hotspot. [0003] The key point of establishing a D2D cluster lies in the selection of cluster heads. The traditional cluster head selection is usually based on three methods: node link, maximum connection degree or minimum node ID. Recently, an invention patent of a D2D clustering and multicasting method based on location information was proposed. In this patent, the mobile terminal in the D2D area sends its own geograph...

Claims

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Application Information

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IPC IPC(8): H04W40/10H04W40/20H04W40/22
CPCH04W40/10H04W40/20H04W40/22Y02D30/70
Inventor 任智李秀峰吕昱辉王坤龙王斌
Owner SHENZHEN TINNO WIRELESS TECH
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