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A wireless local area network uplink ofdmappdu transmission method and device

A wireless local area network, a traditional technology, applied in the field of data transmission methods, systems, access points, and devices, can solve problems such as inability to meet high-speed business transmission

Active Publication Date: 2019-11-05
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the next generation Wi-Fi (Wireless Fidelity, wireless local area network) system, such as the HEW (High Efficiency WLAN, high-efficiency wireless local area network) system, higher requirements will be placed on the service transmission rate of the wireless local area system. Due to the limitation of a single channel or a single frequency band, the single-point transmission method cannot meet the needs of high-speed service transmission

Method used

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  • A wireless local area network uplink ofdmappdu transmission method and device
  • A wireless local area network uplink ofdmappdu transmission method and device
  • A wireless local area network uplink ofdmappdu transmission method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] figure 1 It is a flow chart of the data transmission method in Embodiment 1 of the present application. This method is applied to the uplink OFDMA PPDU corresponding to the downlink OFDMA PPDU, such as figure 1 As shown, the method may include:

[0041] S101. Determine the frequency resource size occupied by the data part in the uplink OFDMA PPDU scheduled by the access point AP;

[0042] S102, allocate corresponding frequency resource units RU;

[0043] The data part in the uplink OFDMA PPDU includes: uplink user data and / or MAC control signaling.

[0044] S103. Determine one or more basic channel units where the allocated frequency resource unit RU is located;

[0045] The basic channel unit is preferably a 20MHz channel. Of course, the basic channel unit in the embodiment of the present invention is not limited to the 20MHz channel, and any qualified channel can be used as the basic channel unit in the embodiment of the present invention.

[0046] S104. Transmit...

Embodiment 2

[0061] The second embodiment of the present invention also discloses another data transmission method, such as Figure 5 shown, including:

[0062] S201. Determine the frequency resource size occupied by the data part in the uplink OFDMA PPDU scheduled by the access point AP;

[0063] S202, allocate corresponding frequency resource units RU;

[0064] The data part in the uplink OFDMA PPDU includes: uplink user data and / or MAC control signaling.

[0065] S203. Determine multiple basic channel units where the allocated frequency resource unit RU is located;

[0066] The basic channel unit is preferably a 20MHz channel. Of course, the basic channel unit in the embodiment of the present invention is not limited to the 20MHz channel, and any qualified channel can be used as the basic channel unit in the embodiment of the present invention.

[0067] S204. Transmit the data part in the uplink OFDMA PPDU on the allocated frequency resource unit RU, and repeatedly transmit the commo...

Embodiment 3

[0070] The third embodiment of the present invention will describe a data transmission device in detail. For the structure of the data transmission device described in this embodiment, please refer to Figure 6 ,include:

[0071] The allocation unit 301 is used to determine the frequency resource size occupied by the data part in the uplink OFDMA PPDU scheduled by the access point AP, and allocate the corresponding frequency resource unit RU for transmitting the data part in the uplink OFDMA PPDU;

[0072] The data part in the uplink OFDMA PPDU includes: uplink user data and / or MAC control signaling.

[0073] A determining unit 302, configured to determine one or more basic channel units where the allocated frequency resource unit RU is located;

[0074] The basic channel unit is preferably a 20MHz channel. Of course, the basic channel unit in the embodiment of the present invention is not limited to the 20MHz channel, and any qualified channel can be used as the basic channe...

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Abstract

The invention discloses a data transmission method, device, system and access point. The method includes: enabling the data part in the uplink OFDMA PPDU scheduled by the access point AP to perform data transmission on the corresponding allocated frequency resource unit RU, and determining one or more basic channels where the allocated frequency resource unit RU is located A unit that transmits at least part of the fields in the common signaling part of the uplink OFDMA PPDU on the determined one or more basic channels. One or more basic channels that transmit at least part of the fields in the common signaling part of the uplink OFDMA PPDU are determined, and other users can perform data transmission on other idle basic channels, which improves channel utilization and enables Multiple users perform data transmission on multiple basic channels at the same time, which increases the service transmission rate.

Description

technical field [0001] The present invention relates to the technical field of network communication, in particular to a data transmission method, device, system and access point. Background technique [0002] With the development of the mobile Internet and the popularity of smart terminals, data traffic is increasing rapidly. With the advantages of high speed and low cost, WLAN has become one of the mainstream mobile broadband access technologies. In existing Wi-Fi systems, such as traditional systems based on IEEE 802.11a, high-throughput systems based on IEEE 802.11n, and very high-throughput systems based on IEEE802.11ac, uplink data transmission is all point-to-point Point-to-point transmission, that is, on the same channel or the same spectrum, only one station transmits data to the access point at the same time; downlink data transmission is also point-to-point transmission, that is, on the same channel or the same spectrum, at the same time Access points only trans...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04L27/26H04W72/04H04W74/04H04W74/08
CPCH04W74/04H04L5/0044H04L5/0053H04L5/0094H04L27/2602H04W74/0816H04L5/0007H04W72/0453H04W72/1263H04W74/002H04W72/20H04W72/0446
Inventor 刘乐蓝洲
Owner HUAWEI TECH CO LTD