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A kind of contention access method and station

A site and wireless frame technology, applied in the field of contention access methods and sites, can solve problems such as contention collisions, and achieve the effects of avoiding interference, avoiding unfair competition problems, and avoiding hidden terminal problems

Active Publication Date: 2019-02-12
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a contention access method and a station to solve the possible contention collision problem when the wireless station performs MU transmission

Method used

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  • A kind of contention access method and station
  • A kind of contention access method and station
  • A kind of contention access method and station

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Assuming that the value of RA in STA1's data packet is set to STA1's MAC address, and STA1 is required to reply BA immediately after receiving the MU wireless frame, RA in STA2~STA4's data packets is set to STA2~STA4's MAC address respectively, And require STA2~STA4 not to reply the response frame after receiving the MU PPDU.

[0042] After receiving the physical frame header of the MU PPDU and discovering that the wireless frame contains its own data packet, the STA1-STA4 receive their own data in the wireless frame according to the instruction of the physical frame header. STA1~STA4 determine that the wireless frame is a multi-user wireless frame through the physical frame header indication, and in the received data packet, the receiving address RA matches its own MAC address, and STA1~STA4 reserve the channel according to the channel carried in the received data packet Duration to update their own NAV settings, that is, STA1~STA4 receive the MU data packet whose rece...

Embodiment 2

[0045] Assuming that the value of RA in STA1's data packet is set to STA1's MAC address, and STA1 is asked to reply BA immediately after receiving the MU wireless frame, RA in STA2~STA4's data packets is set to STA2~STA4's MAC address respectively, And require STA2~STA4 not to reply the response frame after receiving the MU PPDU.

[0046] After receiving the physical frame header of the MU PPDU and discovering that the wireless frame contains its own data packet, the STA1-STA4 receive their own data in the wireless frame according to the instruction of the physical frame header. STA1 judges that the wireless frame is a multi-user wireless frame through the physical frame header indication, and responds to the response frame immediately after receiving the MU PPDU according to the indication in the received data packet, and STA1 does not update the NAV according to the Duration value indicated in the data packet Operation; when STA2~STA4 judge the wireless frame as a multi-user...

Embodiment 3

[0048] Assume that the AP sets RA to the MAC addresses of STA1 to STA4 in the data packets of STA1 to STA4 respectively, and requires STA1 to STA4 not to reply a response frame after receiving the MU PPDU.

[0049] After receiving the physical frame header of the MU PPDU and discovering that the wireless frame contains its own data packet, the STA1-STA4 receive their own data in the wireless frame according to the instruction of the physical frame header. STA1~STA4 determine that the wireless frame is a multi-user wireless frame through the physical frame header indication, and in the received data packet, the receiving address RA matches its own MAC address, and STA1~STA4 reserve the channel according to the channel carried in the received data packet Duration to update their own NAV settings, that is, STA1~STA4 receive the MU data packet whose receiving address is their own, and obtain the Duration value in the data packet. If the Duration value is greater than the local netw...

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Abstract

The invention provides a competition access method. The method comprises the following steps that: after a station receives a radio frame containing channel reserve information and the station is a target receiving party, when a preset condition is met, the station updates a local network distribution vector according to the channel reserve information, wherein the preset condition includes that the radio frame is a multi-user multi-input multi-output radio frame. In addition, the invention also provides a station. According to the invention, an unfair competition problem caused by advance channel competition of MU users due to MU transmission can be solved.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a contention access method and a station in wireless local area network communication. Background technique [0002] At present, in the wireless network field, the wireless local area network (WLAN) develops rapidly, the requirement for WLAN coverage is increasing day by day, and the requirement for throughput is also getting higher and higher. In the IEEE802.11 group of the Institute of Electrical and Electronics Engineers industry specification, a series of the most common WLAN technical standards such as 802.11a, 802.11b, and 802.11g have been defined. Specifications for technical improvements, for example, the 802.11n task group proposed high throughput (High throughput, referred to as HT) requirements, introduced multiple-input multiple-output (MIMO) and beamforming technology, and supported data rates up to 600Mbps, and the 802.11ac task group The concept of VHT (Very...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W74/08
Inventor 邢卫民吕开颖田开波孙波姜静李楠
Owner ZTE CORP
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