Data transmission method and apparatus in wireless local area network

Patent metadata

Field	Value
Publication number	US-11677606-B2
Application number	US-202117246182-A
Country	US
Kind code	B2
Filing date	Apr 30, 2021
Priority date	Nov 23, 2015
Publication date	Jun 13, 2023
Grant date	Jun 13, 2023

Abstract

An HE-LTF transmission method is provided, including: determining, based on a total number NSTS of space-time streams, a number NHELTF of OFDM symbols included in an HE-LTF field; determining a HE-LTF sequence in frequency domain according to a transmission bandwidth and a mode of the HE-LTF field, where the HE-LTF sequence in frequency domain includes but is not limited to a mode of the HE-LTF field sequence that is in a 1× mode and that is mentioned in implementations; and sending a time-domain signal according to the number NHELTF of OFDM symbols and the determined HE-LTF sequence in frequency domain. In the foregoing solution, a PAPR value is relatively low.

First claim

What is claimed is:

1. A non-transitory computer-readable storage medium on which a program is stored, wherein the program, when executed, enables a computer to perform a method as below:
determining a long training field (LTF) sequence in a frequency domain according to a transmission bandwidth and a mode of a LTF field; and
sending a time-domain signal, according to the LTF sequence and a number of orthogonal frequency division multiplexing (OFDM) symbols of the LTF field;
wherein the LTF sequence in the frequency domain in a 1×LTF mode over a bandwidth includes one or more LTF sequences in a 1×LTF mode over 80 MHz channels, and the LTF sequence in a 1×LTF mode is:

HE
-

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Assignees

• Huawei Tech Co Ltd

Inventors

• Lin Wei
• Xue Xin
• Wang Ningjuan
• Liu Le

Classifications

• H04L25/02 Primary

  Details {; arrangements for supplying electrical power along data transmission lines (systems for transmitting signals via power distribution lines H04B3/54)} · CPC title

• H04L27/261 Primary

  Details of reference signals · CPC title

• H04W72/1268

  of uplink data flows · CPC title

• H04W24/10

  Scheduling measurement reports {; Arrangements for measurement reports} · CPC title

• H04L27/2614 Primary

  Peak power aspects · CPC title