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Uplink transmission method and device

A technology of transmission cycle and transmission resources, applied in the direction of network traffic/resource management, electrical components, wireless communication, etc., can solve problems such as waste of resources

Active Publication Date: 2017-05-17
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a method and device for uplink transmission, so as to at least solve the problem of waste of resources in the existing uplink transmission

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  • Uplink transmission method and device

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Embodiment Construction

[0282] In order to make the description of the following embodiments clear and concise, a brief introduction of interception technology in a high efficiency wireless local area network (English: High Efficiency Wlan, HEW for short) is given first. Among them, the interception technology in the HEW is divided into two interception manners, physical carrier sensing and virtual carrier sensing, and the two interception manners will be described respectively below.

[0283] Physical Carrier Sense:

[0284]The physical carrier sense mechanism defined by the Institute of Electrical and Electronics Engineers (English: Institute of Electrical and Electronics Engineers, abbreviated: IEEE) is called Clear Channel Assessment (English: Clear Channel Assessment, abbreviated: CCA). In a wireless communication system, when a device needs to send data on a certain channel, it first receives data on this channel. If no other device is found to send data on this channel after a given period of ...

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Abstract

The embodiment of the invention provides an uplink transmission method and device so as to at least solve a problem of resource waste in existing uplink transmission. The uplink transmission method comprises the steps that an AP (Access Point) sends a first trigger frame, wherein the first trigger frame contains indication information of a first trigger interval of the first trigger frame; the AP determines whether an AP response frame is sent or not before each first transmission period of t first transmission periods in the first trigger interval until the AP determines to send the AP response frame, and the AP sends the AP response frame, wherein the AP response frame contains reception confirmation information of all or part content, which is successfully received by the AP, of an uplink PPDU in the transmission periods before the AP response frame / or trigger information of the PPDU, and the t first transmission periods are transmission periods before the transmission period in which the AP can send the AP response frame in N transmission periods in the first transmission interval. The uplink transmission method and device are applicable to the field of wireless communication.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a method and device for uplink transmission. Background technique [0002] Wireless Local Area Networks (English: Wireless Local Area Networks, WLAN for short) is a network system that uses radio frequency technology to transmit data in the air. With the increase of the number of stations (STation, STA for short) in the Basic Service Set (English: Basic Service Set, BSS for short), currently a multi-user access mechanism is mostly used in WLAN to improve transmission efficiency. For example, using Orthogonal Frequency Division Multiple Access (English: Orthogonal Frequency Division Multiple Access, OFDMA for short) to divide the entire channel into several sub-channels, multiple STAs can transmit on different sub-channels at the same time, which can shorten multiple The transmission time of STAs can improve transmission efficiency and reduce the probability of colli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/26H04W72/04H04W72/12H04W84/12
CPCH04W28/26H04W72/0446H04W72/1221H04W84/12H04W72/21
Inventor 李彦淳李云波罗毅
Owner HUAWEI TECH CO LTD