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Signaling sending and receiving method and device in wireless local area network

A technology of wireless local area network and signaling, applied in the field of receiving method and device, signaling sending, capable of solving problems such as no public signaling design scheme

Active Publication Date: 2020-08-07
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Embodiments of the present invention provide methods and devices for sending and receiving signaling in WLAN, which solves the problem that there is currently no design scheme for public signaling in OFDMA-based WLAN systems

Method used

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  • Signaling sending and receiving method and device in wireless local area network
  • Signaling sending and receiving method and device in wireless local area network
  • Signaling sending and receiving method and device in wireless local area network

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0072] Figure 7 It is a schematic diagram of the network architecture of the WLAN applied in the embodiment of the present invention, and the network architecture of the WLAN 10 includes an AP 20 and a plurality of STAs 30 . Among them, WLAN10 supports uplink (UpLink, referred to as: UL) or downlink (DownLink, DL) MU MIMO communication between AP20 and multiple STA30, and WLAN10 supports UL between AP20 and each STA in multiple STA30 SU or DL ​​SU communication.

[0073] AP 20 includes a host processor 21 coupled to a network interface 22 . Network interface 22 includes MAC23 and PHY24. The PHY 24 includes a plurality of transceivers (transmit / receive: TX / RX for short) 25 , and the transceiver 25 is coupled to a plurality of antennas 26 . In the embodiment of the present invention, MAC23 and PHY24 are configured to operate according to a first communication protocol (such as IEEE802.11ax standard, which is currently in the standardization process). Of course, MAC23 and PH...

Embodiment 2

[0175] An embodiment of the present invention provides an AP2200, specifically as Figure 22 As shown, it includes: a generating unit 2202 and a sending unit 2203.

[0176] The generating unit 2202 is configured to generate signaling, wherein the signaling includes an AP ID field, a bandwidth BW field, a guard interval GI field, a cyclic redundancy check CRC field and a Tail field, and the AP ID field is used to indicate the ID of the AP2200, The BW field is used to indicate the bandwidth required for the subsequent data transmission of the signaling, the GI is used to indicate the length of the CP required for the subsequent data transmission of the signaling, the CRC field is used to protect the field before the CRC field in the signaling, and the Tail field is used for For clearing the encoder and decoder, the CRC field and the Tail field are the last two fields of the signaling.

[0177] The sending unit 2203 is configured to send signaling.

[0178] Preferably, the AP I...

Embodiment 3

[0200] An embodiment of the present invention provides a STA2400, specifically as Figure 24 As shown, the STA2400 includes: a receiving unit 2401 and an analyzing unit 2402 .

[0201] The receiving unit 2401 is configured to receive the signaling sent by the access point AP, wherein the signaling includes the AP identification ID field, the bandwidth BW field, the guard interval GI field, the cyclic redundancy check CRC field and the tail field, and the AP ID field It is used to indicate the ID of the AP, the BW field is used to indicate the bandwidth required for the subsequent data transmission of the signaling, the GI is used to indicate the length of the cyclic prefix CP required for the subsequent data transmission of the signaling, and the CRC field is used in the protection signaling The field before the CRC field, the Tail field is used to clear the encoder and decoder, and the CRC field and the Tail field are the last two fields of the signaling.

[0202] The parsin...

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PUM

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Abstract

The embodiment of the invention provides a signaling sending and receiving method and device in a wireless local area network, and solves the problem that a design scheme of common signaling in the WLAN based on OFDMA does not exist at present. The method comprises the following steps: that an AP generates the signaling, wherein the signaling comprises an AP ID field, a BW field, a GI field, a CRCfield and a Tail field, the AP ID field is used for indicating the ID of the AP; the BW field is used for indicating a bandwidth required by subsequent data transmission of the signaling; the GI is used for indicating the length of a CP required by subsequent data transmission of the signaling, the CRC field is used for protecting fields ahead of the CRC field in the signaling, the Tail field isused for clearing an encoder and a decoder, and the CRC field and the Tail field are the last two fields of the signaling; and the AP sending the signaling. The invention is applicable to the field ofcommunication.

Description

[0001] This application claims the priority of the PCT patent application with the application number PCT / CN2014 / 088972 and the title of the invention "Method and device for sending and receiving signaling in wireless local area network" submitted to China Patent Office on October 20, 2014. And the priority of the application number PCT / CN2014 / 093183 and the invention title "Signaling transmission and reception method and device in wireless local area network" submitted to the Chinese Patent Office on December 5, 2014, the entire contents of which are incorporated by reference in this application. technical field [0002] The invention relates to the communication field, in particular to a method and device for sending and receiving signaling in a wireless local area network. Background technique [0003] Wireless Local Area Networks (WLAN for short) is a network system that uses radio frequency technology to transmit data in the air. With the widespread application of smar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L27/26H04W72/54
CPCH04L5/0053H04L5/0092H04L69/22H04W48/12H04W48/17H04W84/12H04W72/23H04L1/0083H04L5/0007H04L12/28H04L9/40H04L27/2601H04W72/0453H04W74/04H04W88/08
Inventor 林英沛张佳胤罗俊刘乐
Owner HUAWEI TECH CO LTD