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Data transmission method and related device

A data transmission method and digital technology, which are applied in the field of data transmission methods and related devices, and can solve the problems of high signaling overhead and the like

Pending Publication Date: 2021-10-22
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] With the development of WLAN technology, in order to enable the PPDU transmitted by the access point to support more station users, the signaling field in the PPDU needs to transmit more and more user fields, which will lead to an increasing signaling overhead

Method used

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  • Data transmission method and related device
  • Data transmission method and related device
  • Data transmission method and related device

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Embodiment Construction

[0078] The specific embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0079] by Figure 1A The applicable network structure of the data transmission method described in this application is described as an example. Figure 1A It is a schematic diagram of the network structure provided by the embodiment of the present application, and the network structure may include one or more access point (access point, AP) type stations and one or more non-access point type stations (none access point station , non-AP STA). For ease of description, stations of the access point type are referred to as access points (APs), and stations of non-AP types are referred to as stations (STAs). The APs are, for example, AP1 and AP2 in Figure 1A, and the STAs are, for example, Figure 1A STA1, STA2, and STA3 in .

[0080] Among them, the access point can be the access point for the terminal equipment (such as mobile phone...

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PUM

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Abstract

The invention discloses a data transmission method and a related device. The method comprises the following steps that: a signaling field of a PPDU is generated, and the signaling field is sent in a first frequency domain fragment, wherein the channel bandwidth for transmitting the PPDU comprises at least two frequency domain fragments; the at least two frequency domain fragments comprise a first frequency domain fragment; a resource unit allocation sub-field in the signaling field indicates a resource unit (RU) included in a channel bandwidth for transmitting the PPDU, and the number of user fields corresponding to the RU allocated to a station stopping on the first frequency domain fragment in the RU. In this way, the overhead of the signaling field can be saved by omitting the user field which is not allocated to the frequency domain fragment. The method and the device can be applied to WiFi systems such as 802.11 be or extremely high throughput EHT and the like.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a data transmission method and a related device. Background technique [0002] Since the development of wireless local area network (WLAN), Orthogonal Frequency Division Multiple Access (OFDMA) technology has been newly introduced, and the entire bandwidth is divided into multiple resource units (resource unit, RU). That is to say, allocation of user frequency band resources is not in units of channels, but in units of resource units. For example, a 20MHz channel can contain multiple RUs in the form of 26-toneRU, 52-tone RU, or 106-tone RU. Wherein, tone represents the number of subcarriers. In addition, RU can also be in the form of 242-tone RU, 484-tone RU, 996-tone RU, etc. [0003] In 802.11ax, the high-efficiency signaling field (High Efficient Signal Field, HE-SIG-B) in the (PHY protocol data unit, PPDU) sent by the access point to multiple stations ...

Claims

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Application Information

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IPC IPC(8): H04W72/04
CPCH04W72/0453H04W72/535H04W84/12H04L27/2602H04L5/0044H04L5/0094H04L5/0005H04W72/53
Inventor 狐梦实于健淦明梁丹丹
Owner HUAWEI TECH CO LTD