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Method and device for processing network allocation vector nav

A technology of network allocation vector and processing method, which is applied in the field of network allocation vector NAV processing method and device, which can solve the problems of inaccurate NAV update, hidden site collision, etc., and achieve the effects of reducing collision, ensuring accuracy, and ensuring fairness

Active Publication Date: 2022-07-15
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The present invention provides a processing method and device for network allocation vector NAV, so as to at least solve the problem of inaccurate NAV update in the related art, resulting in collision with hidden sites

Method used

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  • Method and device for processing network allocation vector nav
  • Method and device for processing network allocation vector nav
  • Method and device for processing network allocation vector nav

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] In this embodiment, AP1, STA1, and STA2 form a BSS. After the sending station STA1 obtains the transmission opportunity, it sends HE SU PPDU (corresponding to the above-mentioned first radio frame), AP1 is the target receiving station, and STA2 is the listening station (corresponding to the above-mentioned first station). When STA1 sends the above-mentioned HE SU PPDU, it will indicate the transmission opportunity duration TXOP_DURATION, the basic service set identifier (BSS color) and the uplink and downlink indications in the HE-SIG-A of the above-mentioned HE SU PPDU.

[0077] When STA2 judges that the radio frame is HE SU PPDU through the preamble information, and STA2 has received the HE-SIG-A of the HE SU PPDU, and the verification detection is correct, it judges that it is not the target receiving station of the HE SU PPDU. Then STA2 decides to terminate the end early, and calculates the duration RTIME(us) of the remaining part of the radio frame. The calculation...

Embodiment 2

[0083] In this embodiment, AP1, STA1, and STA2 form a BSS. The sending station STA1 sends the HE Trigger-based PPDU (corresponding to the above-mentioned first radio frame), AP1 is the target receiving station, and STA2 is the listening station (corresponding to the above-mentioned first station).

[0084] When STA2 judges that the radio frame is HE Trigger-based PPDU through the preamble information, and STA2 has received the HE-SIG-A of the HETrigger-based PPDU, and the verification and detection are correct, it judges that it is not the target receiving station of the HE Trigger-based PPDU. Then STA2 decides to terminate the end early, and calculates the duration of the remaining part of the radio frame. The calculation method is as follows:

[0085] RTIME=RXTIME-T L-STF -T L-LTF -T L-SIG -T RL-SIG -T HE-SIG-A

[0086] Then, STA2 calculates the final value used to update NAV by the following formula:

[0087] TXOPTIME=RTIME+TXOP_DURATION;

[0088] STA2 uses TXOPTIME...

Embodiment 3

[0090] In this embodiment, AP1, STA1, and STA2 form a BSS. After the sending station STA1 obtains the transmission opportunity, it sends the HE Extended Range SU PPDU (corresponding to the above-mentioned first radio frame), AP1 is the target receiving station, and STA2 (corresponding to the above-mentioned first station) is the listening station. When STA1 sends the above-mentioned HE Extended Range SU PPDU, it will indicate the duration of the transmission opportunity, the basic service set identifier (BSS color) and the uplink and downlink indications in the HE-SIG-A of the above-mentioned HE Extended Range SU PPDU.

[0091] When STA2 judges that the radio frame is an HE Extended Range SU PPDU through the preamble information, when STA2 has received the repeated HE-SIG-A of the HE Extended Range SU PPDU, and the HE-SIG-A check is correct, it judges that it is not the HE Target receiving site for Extended Range SU PPDUs. Then STA2 decides to terminate the end early, and cal...

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Abstract

The present invention provides a method and device for processing a network allocation vector NAV, wherein the method includes: in the case that it is determined that the destination receiving site of the first radio frame being received is not the first site, terminating the reception of the first radio frame; Update the NAV of the first site or keep the NAV of the first site unchanged according to the remaining duration of the first radio frame and the first transmission opportunity duration carried in the first radio frame, wherein the remaining duration of the first radio frame The time is the transmission time used to transmit the remaining part of the first radio frame after termination of receiving the first radio frame. It solves the problem of inaccurate NAV update in the related art, which leads to collision with hidden sites, thereby ensuring the accuracy of NAV update, ensuring the fairness of transmission and competition channels, and reducing collisions between hidden sites.

Description

technical field [0001] The present invention relates to the field of communications, and in particular, to a method and device for processing a network allocation vector NAV. Background technique [0002] At present, in the field of wireless networks, Wireless Local Area Network (WLAN for short) is developing rapidly. MIMO) and other technologies, the data rate can reach more than 1Gbps. However, with the increase of the network density and the increase of the number of users, the efficiency of the WLAN network will obviously decrease, and the problem of network efficiency cannot be solved simply by increasing the transmission rate. Therefore, the Institute for Electrical and Electronic Engineers (IEEE) standards organization established the TGax task group to solve the problem of WLAN network efficiency. Among them, TGax is also called High Efficiency (High Efficiency, referred to as HE) task Group. [0003] In 802.11, an access point (access point, referred to as AP) an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W74/08H04W72/08H04W84/12
CPCH04W74/0816H04W84/12H04W72/541H04W74/085H04W72/0446
Inventor 韩志强邢卫民吕开颖李楠
Owner ZTE CORP
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