Uplink bandwidth indication method of PPDU and related device

A bandwidth and indication technology, applied in wireless communication, network topology, electrical components, etc., to achieve the effect of reducing complexity and saving signaling overhead

Pending Publication Date: 2022-05-13
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] With the development of the mobile Internet and the popularization of smart terminals, the data traffic is increasing rapidly, and the user's demand for communication service quality is also increasing. The Institute of Electrical and Electronics Engineers (IEEE) 802.11ax standard has been difficult to implement High throughput, low jitter and low latency meet user needs

Method used

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  • Uplink bandwidth indication method of PPDU and related device
  • Uplink bandwidth indication method of PPDU and related device
  • Uplink bandwidth indication method of PPDU and related device

Examples

Experimental program
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Effect test

Embodiment approach 11

[0188] When the value of the uplink bandwidth field is 0, the uplink bandwidth extension field is a reserved field, and the total transmission bandwidth of the jointly indicated uplink PPDU is 20MHz;

[0189] The above sentence can also be understood as:

[0190]When the value of the uplink bandwidth field is 0 and the value of the uplink bandwidth extension field is the first (or fifth) value, the total transmission bandwidth of the jointly indicated uplink PPDU is 20MHz;

[0191] The value of the uplink bandwidth field is 0, the value of the uplink bandwidth expansion field is the 2nd (or 6th) value, and the value combination is reserved (unused);

[0192] The value of the uplink bandwidth field is 0, and the value of the uplink bandwidth expansion field is the third (or seventh) value, and the value combination is reserved (unused);

[0193] The value of the uplink bandwidth field is 0, and the value of the uplink bandwidth expansion field is the 4th (or 8th) value, and th...

Embodiment approach 12

[0230] When the value of the uplink bandwidth field is 0, the uplink bandwidth extension field is a reserved field, and the total transmission bandwidth of the jointly indicated uplink PPDU is 20MHz;

[0231] The above sentence can also be understood as:

[0232] When the value of the uplink bandwidth field is 0 and the value of the uplink bandwidth extension field is the first (or fifth) value, the total transmission bandwidth of the jointly indicated uplink PPDU is 20MHz;

[0233] The value of the uplink bandwidth field is 0, the value of the uplink bandwidth expansion field is the 2nd (or 6th) value, and the value combination is reserved (unused);

[0234] The value of the uplink bandwidth field is 0, and the value of the uplink bandwidth expansion field is the third (or seventh) value, and the value combination is reserved (unused);

[0235] The value of the uplink bandwidth field is 0, and the value of the uplink bandwidth expansion field is the 4th (or 8th) value, and t...

Embodiment approach 11

[0280] In Embodiment 1.1, when the total transmission bandwidth of the uplink PPDU is 320MHz, the uplink bandwidth field and the uplink bandwidth extension field can be set to 2 and the third value respectively, or the uplink bandwidth field and the uplink bandwidth extension field can be set respectively at this time for the 3 and 6th values. In order to facilitate the implementation of the receiving site, or provide more reserved combination values ​​or unused combination values, two methods are proposed:

[0281] 1. When the uplink bandwidth field and the uplink bandwidth extension field can be set to 3 and the 6th value respectively, the total transmission bandwidth of the uplink PPDU is 320MHz; when the uplink bandwidth field and the uplink bandwidth extension field can be set to 2 and the 3rd value respectively , which is a reserved combination.

[0282] Or, when the uplink bandwidth field and the uplink bandwidth extension field can be set to 2 and the third value resp...

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Abstract

The invention relates to the field of wireless communication, for example, the method is applied to a wireless local area network supporting the 802.11 be standard, and particularly relates to a PPDU uplink bandwidth indication method and a related device. The method comprises: an AP generating and sending a trigger frame, the trigger frame carrying first indication information for directly indicating or jointly indicating the bandwidth of an EHT TB PPDU or the total transmission bandwidth of an uplink PPDU; and carrying second indication information for indicating the distribution of the HE TB PPDU and/or the EHT TB PPDU in the total transmission bandwidth of the uplink PPDU, or directly indicating whether the EHT station transmits the HE TB PPDU or the EHT TB PPDU. By implementing the embodiment of the invention, the trigger frame has the capability of triggering the EHT site to perform uplink data transmission on the bandwidth greater than 160MHz on the premise of ensuring the compatibility of the trigger frame.

Description

technical field [0001] The present application relates to the technical field of wireless communication, in particular to a method for indicating an uplink bandwidth of a physical layer protocol data unit (PPDU) and a related device. Background technique [0002] With the development of the mobile Internet and the popularization of smart terminals, the data traffic is increasing rapidly, and the user's demand for communication service quality is getting higher and higher. The Institute of Electrical and Electronics Engineers (IEEE) 802.11ax standard has been difficult to implement High throughput, low jitter and low latency meet user needs. Therefore, there is an urgent need to develop a next-generation wireless local area network (wireless local area network, WLAN) technology, that is, the IEEE 802.11be standard or the extremely high throughput (extremely high throughput, EHT) standard or the Wi-Fi7 standard. Different from IEEE 802.11ax, IEEE 802.11be will adopt ultra-lar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W72/12H04W84/12
CPCH04W72/0453H04W72/1268H04W84/12H04W72/23
Inventor 淦明李伊青刘辰辰李云波郭宇宸于健杨讯
Owner HUAWEI TECH CO LTD
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