Distributed OFDMA random access method, AP and STA

A random access and distributed technology, applied in electrical components, wireless communication, etc., can solve problems affecting random competition performance, competition access interference, etc.

Active Publication Date: 2017-06-09
HONOR DEVICE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the WiFi system of dense scenes, there will also be many STAs participating in the competition in this BSS, which will cause large competition access interference and affect the performance of random competition.

Method used

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  • Distributed OFDMA random access method, AP and STA
  • Distributed OFDMA random access method, AP and STA
  • Distributed OFDMA random access method, AP and STA

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Embodiment Construction

[0086] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part 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 shall fall within the protection scope of the present invention.

[0087] A WLAN is mainly composed of a station (Station, STA), which may also be called a user equipment, an access point AP, a wireless medium (Wireless Medium, WM) and a distributed system (Dis-tribution System, DS).

[0088] Among them, the STA in the embodiment of the present invention can be a computer equipped with a wireless network card, or a smart phone, a tablet computer, or an Internet of Things terminal device with a WiFi module, ...

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PUM

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Abstract

The embodiment of the invention discloses a distributed OFDMA random access method, an AP (access point) and user equipment STA, and the method can effectively reduce the completion conflict rate and effectively shorten the competition access time. According to the invention, the method comprises the steps that the AP calculates a competition window initial value CWini according to the number N of pieces of correlated user equipment STA and the number of RUs (resource units), so as to enable CWini to serve as a dynamically-changing more reasonable competition time window value; the AP broadcasts the CWine, so as to enable the STA correlates with the AP to participate in the competition according to the CWini. Therefore, the CWini serves as the dynamically-changing more reasonable competition time window value, the conflict rate of competition can be effectively reduced, the bandwidth resources can be effectively used, the system throughput can be increased, and the competition access time can be effectively shortened.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a distributed OFDMA random access method, an access point AP and a user equipment STA. Background technique [0002] With the development of mobile Internet and the popularization of smart terminals, data traffic shows an explosive growth trend. With its advantages in high speed and low cost, a wireless local area network (Wireless Local Area Network, WLAN) has become one of the mainstream mobile broadband access technologies today. [0003] The existing 802.11ac-based WLAN system adopts the Orthogonal Frequency Division Multiplexing (OFDM) modulation mode, and does not use the access point (Access Point, AP) trigger in the media access control (MediaAccess Control, MAC) layer. Competition mechanism to allow users to participate in competitions. Therefore, the traditional competition method is used to participate in the competition in the existing standards, and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W74/08
Inventor 邓德隽陈光祯马驰翔
Owner HONOR DEVICE CO LTD
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