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Data transmission method and device

A data transmission method and data frame technology, applied in the field of wireless communication, to achieve the effect of improving the chance of space reuse and saving energy

Active Publication Date: 2017-09-19
HONOR DEVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the development of communication technology, especially the increase in the number of served users, the use of traditional transmission mechanisms for data transmission often cannot use limited frequency band resources to meet the needs of each user

Method used

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  • Data transmission method and device

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Embodiment Construction

[0049] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0050] The "module" mentioned in this article refers to the program or instruction that can realize certain functions stored in the memory; the "unit" mentioned in this article refers to a functional structure divided according to logic, and the "unit" can be composed of Pure hardware implementation, or a combination of software and hardware.

[0051] In the existing WiFi system, carrier sense / collision avoidance (Carrier Sense Multiple Access with Collosion Avoidance, CSMA / CA) is used to provide wireless channel sharing in a competitive manner.

[0052] A transmission opportunity (Transmit Opportunity, TXOP) is a time unit for wireless channel access, and the TXOP is used to indicate the duration of data transmission by the STA or AP....

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PUM

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Abstract

The invention, which belongs to the field of wireless communication, discloses a data transmission method and device. The method comprises: a data frame transmitted by another BSS is obtained in a channel; according to information carried by the data frame, whether spatial reuse transmission is enabled is determined; and if so, spatial reuse transmission is carried out at the channel by using a threshold value in a competitive manner. Therefore, problems of a few of communication opportunities of STA in an OBSS region and low data throughout can be solved. Whether the spatial reuse transmission is enabled is determined only based on the existing information without the need to adding information in a transmitted data packet, so that the STA energy can be saved and the spatial reuse opportunity can be improved.

Description

technical field [0001] Embodiments of the present invention relate to the field of wireless communication, and in particular, to a data sending method and device. Background technique [0002] A wireless fidelity (Wireless Fidelity, WiFi) system includes: a wireless access point (Wireless Access Point, AP) and a station (Station, STA). The AP can be a wireless router, and the STA can be a mobile terminal. With the development of communication technology, especially the increase in the number of served users, the use of traditional transmission mechanisms for data transmission often cannot use limited frequency band resources to meet the needs of various users. Therefore, for a scene with dense users, a spatial reuse (Spatial Reuse, SR) technology is proposed. The space reuse technology mainly hopes that APs or STAs in different BSSs can transmit data concurrently as much as possible without interfering with neighboring BSSs. That is, at the same time, the data transmissio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04
CPCH04W72/0446H04W72/53H04W72/20H04W74/08Y02D30/70
Inventor 王静罗俊于健
Owner HONOR DEVICE CO LTD
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