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Method for data transmission and relay node

A relay node and data transmission technology, which is applied in the field of data transmission and can solve the problems of increased data transmission burden on the root access point.

Active Publication Date: 2018-02-06
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since all data packets need to be forwarded by the root access point, the burden of data transmission on the root access point increases

Method used

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  • Method for data transmission and relay node
  • Method for data transmission and relay node
  • Method for data transmission and relay node

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Embodiment Construction

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but 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.

[0044] It should be understood that in the embodiment of the present invention, the numbers "first" and "second" are only used to distinguish different objects, for example, in order to distinguish different relay nodes or information, and should not constitute a protection scope of the embodiment of the present invention Unnecessary qualification.

[0045] In the traditional 802.11 standard, an access point (Access Point, AP) and multiple station...

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Abstract

The embodiment of the invention discloses a method for data transmission, and is applied to a wireless network comprising a root access point and at least two relay nodes. The method includes: a firstrelay node of the at least two relay nodes obtains a mapping relation between the at least one second relay node and at least a site, wherein each second relay node corresponds to at least one site;the first relay node receives a data packet, wherein the data packet carries indication information, and the indication information is used for indicating a target site to which the data packet is required to be transmitted; and the first relay node determines that the destination site exists in the mapping relation and sends the data packet to a target second relay node corresponding to the target site so that the target second relay node sends the data packet to the target site.

Description

technical field [0001] The present invention relates to the field of data transmission, and more particularly, to a data transmission method and a relay node. Background technique [0002] In many application scenarios of wireless communication, long-distance transmission of up to 1 to 2 kilometers is required between nodes, such as smart grid, highway traffic monitoring, etc. However, due to regulatory restrictions and the uncertainty of wireless channel conditions, long-distance transmission cannot be directly performed between nodes. [0003] In order to solve the above problems, a relay technology is proposed in the prior art. Relay technology is to add one or more relay nodes between two nodes that need to transmit data, so as to forward the data that needs to be transmitted one or more times. By adding relay nodes and multi-hop transmission, the purpose of long-distance data transmission is achieved. In the topology structure of the relay transmission, there are thr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/08H04W40/22H04B7/15
CPCH04B7/15H04W40/22H04W28/082
Inventor 郭宇宸贾嘉李云波
Owner HUAWEI TECH CO LTD
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