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Method for transmitting EHT-LTF sequence and related device

A sequence and reverse sequence technology, applied in the field of transmitting EHT-LTF sequences, can solve problems such as PAPR value increase

Active Publication Date: 2022-02-18
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, since the IEEE 802.11be standard has changed the RU division and pilot subcarrier position of the 80MHz bandwidth in the IEEE802.11ax standard, if the LTF sequence in the IEEE 802.11ax standard continues to be used, it will cause the LTF sequence on some resource units Increased PAPR value

Method used

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  • Method for transmitting EHT-LTF sequence and related device
  • Method for transmitting EHT-LTF sequence and related device
  • Method for transmitting EHT-LTF sequence and related device

Examples

Experimental program
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Effect test

Embodiment 1

[0140] Embodiment 1 of the present application introduces a possible flow of the method for transmitting EHT-LTF sequences provided in the present application.

[0141] see Image 6 , Image 6 It is a schematic flowchart of a method for transmitting an EHT-LTF sequence provided by an embodiment of the present application. like Image 6 As shown, the method for transmitting the EHT-LTF sequence includes but is not limited to the following steps:

[0142] S101. The first communication device generates an extremely high throughput physical layer protocol data unit EHT PPDU, where the EHT PPDU includes an extremely high throughput long training field EHT-LTF.

[0143] S102. The first communications device sends the EHT PPDU. Correspondingly, the second communication device receives the EHT PPDU.

[0144] S103. The second communication device parses the EHT-LTF in the received EHT PPDU.

[0145] For ease of description, the "frequency domain sequence of EHT-LTF" is referred t...

Embodiment 2

[0168] Embodiment 2 of the present application introduces the first EHT-LTF sequence at 80 MHz bandwidth, and introduces EHT-LTF sequences at 160 MHz and 320 MHz bandwidth constructed based on the 80 MHz EHT-LTF sequence.

[0169] Understandably, in the resource block division of the 11ax standard, the subcarrier numbers corresponding to the first RU242 range from -500 to -259, the subcarrier numbers corresponding to the second RU242 range from -258 to -17, and the third RU242 The corresponding subcarrier numbers are from 17 to 258, and the subcarrier numbers corresponding to the fourth RU242 are from 259 to 500. In the resource block division of the 11be standard, the subcarrier numbers corresponding to each RU242 can refer to the aforementioned Table 4, here No longer.

[0170] Specifically, the 80MHz bandwidth HE-LTF sequence can be divided into the following five parts from the 1001 subcarriers numbered in the range of -500 to 500:

[0171] HE-LTF80MHz=[HE-LTF80MHz_part1,...

Embodiment 3

[0247] Embodiment 3 of the present application introduces the second EHT-LTF sequence at 80 MHz bandwidth, and introduces EHT-LTF sequences at 160 MHz and 320 MHz bandwidth constructed based on the 80 MHz EHT-LTF sequence.

[0248] Specifically, the 80MHz bandwidth HE-LTF sequence can be divided into the following five parts from the 1001 subcarriers numbered in the range of -500 to 500:

[0249] HE-LTF80MHz=[HE-LTF80MHz_part1, HE-LTF80MHz_part2, HE-LTF80MHz_part3, HE-LTF80MHz_part4, HE-LTF80MHz_part5].

[0250] Wherein, HE-LTF80MHz_part1=HE-LTF80MHz(-500:-259), that is, it indicates that a total of 242 subcarriers including subcarrier numbers ranging from -500 to -259 are included. HE-LTF80MHz_part2=HE-LTF80MHz(-258:-12), that is, it indicates that it includes a total of 247 subcarriers whose numbers range from -258 to -12. HE-LTF80MHz_part3=HE-LTF80MHz(-11:11), that is, it indicates that it includes a total of 23 subcarriers whose numbers range from -11 to 11. HE-LTF80MHz_...

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Abstract

The invention relates to the field of wireless communication, in particular to a method for transmitting an EHT-LTF sequence and a related device, for example, a method and a related device that are applied to a wireless local area network supporting an 802.11be standard. The method comprises the following steps: a first communication device generates and sends an EHT PPDU, wherein the EHT PPDU comprises an EHT-LTF; correspondingly, the second communication equipment receives the EHT PPDU, and analyzes the EHT-LTF in the received EHT PPDU. By adopting the embodiment of the invention, the LTF sequence can be designed according to the IEEE 802.11be standard, and the PAPR value of the LTF sequence on the resource unit is reduced.

Description

technical field [0001] The present application relates to the technical field of wireless communication, and in particular to a method and a related device for transmitting an EHT-LTF sequence. 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 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. 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-large bandwidth, such as 240MHz and 320MHz, to achiev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L27/26
CPCH04L27/262H04W84/12H04L27/2613H04L27/26132H04L27/2603
Inventor 刘辰辰梁丹丹淦明
Owner HUAWEI TECH CO LTD
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