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D2D clustering retransmission method and device

A technology of retransmission and clustering, applied in the field of communication, can solve the problems of high control overhead and low retransmission efficiency

Inactive Publication Date: 2017-08-25
SHENZHEN TINNO WIRELESS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Embodiments of the present invention provide a method and device for D2D cluster retransmission, which can solve the problems of high control overhead and low retransmission efficiency in D2D cluster retransmission in the prior art

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  • D2D clustering retransmission method and device

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Embodiment Construction

[0139] In order to better understand the technical solutions of the present invention, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0140] It should be clear that the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0141] 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", "said" and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0142] Depending on the context, the word "...

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Abstract

The embodiment of the invention provides a D2D clustering retransmission method and a D2D clustering retransmission device, and relates to communication technologies. The method comprises the steps as follows: a mobile terminal sends service request information to a base station, wherein the service request information carries a residual energy level and a geographical location of the mobile terminal; then the base station builds a D2D cluster according to the residual energy level and the geographical location of the mobile terminal; then the base station broadcasts clustering information of the D2D cluster to the mobile terminal, and thus the mobile terminal in the D2D cluster acquires the own node type in the cluster; therefore, the mobile terminal cooperates with the other mobile terminals in the D2D cluster to execute a corresponding data retransmission action according to the node type. According to the technical scheme of the method and the device provided by the invention, the problem that in the prior art when the D2D cluster retransmits data, control overhead is high and retransmission efficiency is low can be solved.

Description

[0001] 【Technical field】 [0002] The present invention relates to the communication field, in particular to a method and device for D2D cluster retransmission. [0003] 【Background technique】 [0004] With the rapid development of communication technology, more and more mobile terminals are pouring into the network, which also increases the utilization of spectrum resources. However, the spectrum resources available to mobile terminals are very limited. Similar terminals communicate with each other, and D2D (device to device, terminal-to-device) communication has become a current research hotspot. [0005] The establishment of a D2D cluster focuses on the selection of the cluster head. The traditional cluster head selection is usually based on three methods: node link, maximum connection degree or minimum node ID. Recently, an invention patent for a D2D clustering multicast method based on location information was proposed. In this patent, mobile terminals in the D2D area sen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04W40/10H04W40/20H04W40/32
CPCH04L1/1858H04W40/10H04W40/20H04W40/32Y02D30/70
Inventor 任智李秀峰吕昱辉王坤龙王斌
Owner SHENZHEN TINNO WIRELESS TECH
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