[go: up one dir, main page]

WO2025176060A1 - Procédé de communication et appareil de communication - Google Patents

Procédé de communication et appareil de communication

Info

Publication number
WO2025176060A1
WO2025176060A1 PCT/CN2025/077158 CN2025077158W WO2025176060A1 WO 2025176060 A1 WO2025176060 A1 WO 2025176060A1 CN 2025077158 W CN2025077158 W CN 2025077158W WO 2025176060 A1 WO2025176060 A1 WO 2025176060A1
Authority
WO
WIPO (PCT)
Prior art keywords
channel
control frame
site
station
time
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2025/077158
Other languages
English (en)
Chinese (zh)
Inventor
郭宇宸
淦明
李云波
黄国刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of WO2025176060A1 publication Critical patent/WO2025176060A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/004—Transmission of channel access control information in the uplink, i.e. towards network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
    • H04W16/06—Hybrid resource partitioning, e.g. channel borrowing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]

Definitions

  • the present application relates to the field of communications, and more specifically, to a communication method and a communication device.
  • the 802.11a/g standard supports 20MHz channel bandwidth
  • the 802.11n standard supports 20MHz and 40MHz channel bandwidths
  • the 802.11ac standard supports 20MHz, 40MHz, 80MHz, 160MHz, and 80MHz+80MHz channel bandwidths. Future standards will support 240MHz, 320MHz, and even higher bandwidths.
  • the present application provides a communication method and a communication device, which enable a transmitting end and a receiving end to perform data transmission on a non-primary channel, thereby improving communication efficiency and channel utilization.
  • a communication method is provided.
  • the method may be performed by a first site, or by a component of the first site (e.g., a chip, circuit, or chip system).
  • a component of the first site e.g., a chip, circuit, or chip system.
  • the following description is based on an example of execution by the first site.
  • the method includes: sending a first control frame to a second site on a first channel and a second channel, the first control frame being used to request sending a data frame to the second site, the first channel being a primary channel and the second channel being a non-primary channel; receiving a second control frame from the second site on the second channel, the second control frame being in response to the first control frame; and sending a data frame to the second site on the second channel.
  • the method further includes: before the first time, stopping sending data frames to the second station on the second channel.
  • the method further includes: sending third information to the second site, the third information being used to indicate the packet detection capability of the first site, the packet detection capability including any one of the following: supporting packet detection on two channels simultaneously, supporting packet detection switching between two channels, and supporting packet detection on only one channel.
  • the first time interval is greater than the time interval for the first site to switch between the first channel and the second channel, and the first time interval is the interval between the end time of the first control frame and the start time of the second control frame.
  • receiving the data frame from the first site on the second channel includes: receiving the data frame from the first site on the second channel before the first time.
  • the first site and the second site can communicate in the second channel before the first time, and switch to the first channel to continue communicating at the first time, which can improve the efficiency of communication compared to communicating only in one channel.
  • the method further includes: switching to the first channel at a second time, the second time being later than the first time; and performing a channel access recovery process on the first channel.
  • the channel access recovery process includes any of the following: performing channel detection according to a first energy detection threshold, the first energy detection threshold being less than -62dBm; or, after performing backoff in channel competition, sending a third control frame to the first site, the third control frame being used to determine whether the first channel is available, and the number of times the third control frame is sent is less than the first threshold.
  • the second site when the time when the second site switches to the first channel is later than the first time indicated by it, the second site can perform the channel access process to avoid direct data transmission and resulting in data transmission failure.
  • the second control frame includes second information, where the second information is used to indicate available channels of the second site, and the available channels of the second site include the second channel.
  • the first site can determine the available channel of the second site according to the second information, so that data can be transmitted with the second site on the available channel, which can improve communication efficiency and channel utilization.
  • the method also includes: receiving third information from the first site, the third information being used to indicate the packet detection capability of the first site, the packet detection capability including any one of the following: supporting packet detection on two channels simultaneously, supporting packet detection switching between two channels, and supporting packet detection on only one channel.
  • the method further includes: determining a start time of the second control frame according to third information.
  • the first time interval is a short interframe space
  • the first time interval is an interval between an end time of the first control frame and a start time of the second control frame.
  • the first time interval is greater than the time interval for the first site to switch between the first channel and the second channel, and the first time interval is the interval between the end time of the first control frame and the start time of the second control frame.
  • the first time interval is a point coordination function inter-frame interval.
  • the method before sending the second control frame, the method also includes: sending a fourth control frame to the first site on the second channel, the fourth control frame responding to the first control frame, wherein the first time interval is 2 times the short inter-frame interval, and the interval between the time when the second site receives the first control frame and the time when the second site sends the fourth control frame is the short inter-frame interval.
  • the second site determines the time to start sending the second control frame according to the packet detection capability of the first site, so as to ensure that the first site can receive the second control frame on the second channel, thereby ensuring that data transmission on the second channel can proceed normally.
  • the first station can perform data transmission with the second station on their common available channel, which can improve communication efficiency and channel utilization.
  • a communication device may be a first site or a component of the first site (eg, a chip or a circuit or a chip system).
  • the device includes: a transceiver unit, used to send a first control frame to a second site on a first channel and a second channel, the first control frame is used to request sending a data frame to the second site, the first channel is a main channel, and the second channel is a non-main channel; the transceiver unit is also used to: receive a second control frame from the second site on the second channel, the second control frame responds to the first control frame; the transceiver unit is also used to: send a data frame to the second site on the second channel.
  • the second control frame includes first information, where the first information is used to indicate a first time, and the first time is the time when the second station switches to the first channel.
  • the apparatus further includes: a processing unit, configured to stop sending data frames to the second station on the second channel before the first time.
  • the transceiver unit is further configured to: send a data frame to the second station on the first channel after the first time.
  • the second control frame includes second information, where the second information is used to indicate available channels of the second site, and the available channels of the second site include the second channel.
  • the transceiver unit is also used to: send third information to the second site, the third information is used to indicate the packet detection capability of the first site, and the packet detection capability includes any one of the following: supporting packet detection on two channels at the same time, supporting packet detection switching between two channels, and supporting packet detection on only one channel.
  • the first time interval is a short interframe space
  • the first time interval is an interval between an end time of the first control frame and a start time of the second control frame.
  • the first time interval is greater than the time interval for the first site to switch between the first channel and the second channel, and the first time interval is the interval between the end time of the first control frame and the start time of the second control frame.
  • the first time interval is a point coordination function inter-frame interval.
  • the first control frame includes fourth information, and the fourth information is used to indicate available channels of the first site, where the available channels of the first site include a first channel and a second channel.
  • the transceiver unit is specifically configured to: receive a data frame from the first station on the second channel before the first time.
  • the device further includes: a processing unit, configured to switch to the first channel at a second time, the second time being later than the first time; and perform a channel access recovery process on the first channel.
  • the transceiver unit is also used to: receive third information from the first site, the third information is used to indicate the packet detection capability of the first site, and the packet detection capability includes any one of the following: supporting packet detection on two channels at the same time, supporting packet detection switching between two channels, and supporting packet detection on only one channel.
  • the first time interval is a short interframe space
  • the first time interval is an interval between an end time of the first control frame and a start time of the second control frame.
  • the first time interval is greater than the time interval for the first site to switch between the first channel and the second channel, and the first time interval is the interval between the end time of the first control frame and the start time of the second control frame.
  • the first time interval is a point coordination function inter-frame interval.
  • the first control frame includes fourth information, where the fourth information is used to indicate available channels of the first site, where the available channels of the first site include a first channel and a second channel.
  • a communication device which includes: a memory for storing programs; and at least one processor for executing computer programs or instructions stored in the memory to execute the method provided by any one of the above aspects or its implementation.
  • the device is a chip, a chip system, or a circuit used in the first site or the second site.
  • a communication device comprising: at least one processor and a communication interface, wherein the at least one processor is configured to retrieve a computer program or instruction stored in a memory through the communication interface to execute the method provided by any one of the above aspects or implementations thereof.
  • the communication interface may be implemented in hardware or software.
  • a processor for executing the methods provided in the above aspects.
  • a computer-readable storage medium which stores program code for execution by a device, and the program code includes a method for executing any one of the above aspects or its implementation method.
  • a computer program product comprising instructions, which, when executed on a computer, enables the computer to execute the method provided by any one of the above aspects or its implementation.
  • a chip comprising a processor and a communication interface, wherein the processor reads instructions stored in a memory through the communication interface and executes the method provided by any of the above aspects or implementations thereof.
  • the communication interface may be implemented in hardware or software.
  • this application does not limit the number of chips that implement the method.
  • the method can be executed by one chip or by two or more chips.
  • the chip manufacturers are not limited and can be the same manufacturer or different manufacturers.
  • a computer program which, when executed on a computer, enables the method provided by any one of the above aspects or its implementation to be executed.
  • a communication system comprising the first site and the second site described above.
  • FIG1 is a schematic diagram of a network architecture applicable to an embodiment of the present application.
  • a non-AP station or AP includes a hardware layer, an operating system layer running on top of the hardware layer, and an application layer running on top of the operating system layer.
  • the hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also known as main memory).
  • the operating system can be any one or more computer operating systems that implement business processing through processes, such as the Linux operating system, Unix operating system, Android operating system, iOS operating system, or Windows operating system.
  • the application layer includes applications such as browsers, address books, word processing software, and instant messaging software.
  • the embodiments of the present application do not specifically limit the specific structure of the execution entity of the method provided in the embodiments of the present application; as long as it is capable of communicating according to the method provided in the embodiments of the present application by running a program that records the code of the method provided in the embodiments of the present application, it is sufficient.
  • the execution entity of the method provided in the embodiments of the present application can be a non-AP station or AP, or a functional module within the non-AP station or AP that can call and execute a program.
  • various storage media described herein may represent one or more devices and/or other machine-readable media for storing information.
  • machine-readable medium may include, but is not limited to, wireless channels and various other media capable of storing, containing, and/or carrying instructions and/or data.
  • a BSS can include an AP and one or more non-AP sites associated with the AP.
  • a wireless LAN network architecture can also include multiple BSSs.
  • Figure 1 (b) shows two BSSs that partially overlap, forming overlapping basic service sets (OBSSs).
  • BSS#1 includes AP#1, non-AP site 11, non-AP site 12, and non-AP site 13, while BSS#2 includes AP#2, non-AP site 21, non-AP site 22, and non-AP site 23.
  • Non-AP sites 11, 12, 22, and 23 represent the overlapping portion of the two BSSs.
  • Each BSS consists of an AP and multiple non-AP sites.
  • data can be transmitted between the AP and each non-AP site, and multiple non-AP sites can also transmit data among themselves.
  • AP#1 and AP#2 can also communicate, and the non-AP sites in the two BSSs can also communicate with each other.
  • Figure 1 is merely exemplary and should not limit the network architecture of the wireless local area network to which this application applies.
  • the network architecture may include more BSSs, each BSS may include more non-AP sites, or some BSSs may not include APs.
  • the overlapping areas of multiple BSSs may also include more non-AP sites, and the embodiments of this application are not limited thereto.
  • 802.11be can support 240MHz, 320MHz, and even higher bandwidths.
  • a channel can only be successfully contended for if the primary channel is idle. If the primary channel is busy, other channels cannot be used, even if they are idle. In other words, the sender and receiver can only communicate on the primary channel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente demande concerne un procédé de communication et un appareil de communication. Le procédé peut être appliqué à un système WLAN prenant en charge un protocole Wi-Fi de prochaine génération de la série des normes IEEE 802.11ax, tel que 802.11be, Wi-Fi 7 ou EHT, et des protocoles de la série des normes 802.11 tels que 802.11be de prochaine génération et Wi-Fi 8, et peut également être appliqué à un système de réseau personnel sans fil et un système de détection basés sur UWB. Le procédé comprend les étapes suivantes : une première station envoie une première trame de commande à la fois sur un canal principal et un canal non principal, et sur le canal non principal sur lequel une seconde station fonctionne, la seconde station peut recevoir la première trame de commande et répondre à la première trame de commande avec une trame de réponse, de telle sorte que la première station et la seconde station peuvent déterminer que le canal non principal est disponible, puis une transmission de données peut être effectuée sur le canal non principal. Par comparaison avec la réalisation d'une transmission de données uniquement sur le canal principal, la présente invention peut améliorer l'efficacité de communication et le taux d'utilisation de canal.
PCT/CN2025/077158 2024-02-21 2025-02-13 Procédé de communication et appareil de communication Pending WO2025176060A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202410192710.2 2024-02-21
CN202410192710.2A CN120529423A (zh) 2024-02-21 2024-02-21 一种通信的方法和通信装置

Publications (1)

Publication Number Publication Date
WO2025176060A1 true WO2025176060A1 (fr) 2025-08-28

Family

ID=96755262

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2025/077158 Pending WO2025176060A1 (fr) 2024-02-21 2025-02-13 Procédé de communication et appareil de communication

Country Status (2)

Country Link
CN (1) CN120529423A (fr)
WO (1) WO2025176060A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180019897A (ko) * 2016-08-17 2018-02-27 주식회사 케이티 무선랜 시스템에서의 동적 대역폭 변경 방법, 장치 및 컴퓨터 프로그램
CN112333846A (zh) * 2020-10-22 2021-02-05 普联国际有限公司 一种信道选择方法、装置、存储介质及终端设备
US20230362993A1 (en) * 2023-07-19 2023-11-09 Minyoung Park Mechanism to handle transmit opportunity termination in non-primary channel access
WO2024025340A1 (fr) * 2022-07-28 2024-02-01 Kstl Dispositif et procédé d'accès à un canal

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180019897A (ko) * 2016-08-17 2018-02-27 주식회사 케이티 무선랜 시스템에서의 동적 대역폭 변경 방법, 장치 및 컴퓨터 프로그램
CN112333846A (zh) * 2020-10-22 2021-02-05 普联国际有限公司 一种信道选择方法、装置、存储介质及终端设备
WO2024025340A1 (fr) * 2022-07-28 2024-02-01 Kstl Dispositif et procédé d'accès à un canal
US20230362993A1 (en) * 2023-07-19 2023-11-09 Minyoung Park Mechanism to handle transmit opportunity termination in non-primary channel access

Also Published As

Publication number Publication date
CN120529423A (zh) 2025-08-22

Similar Documents

Publication Publication Date Title
CN112218363B (zh) 一种多链路通信方法及相关装置
US10091729B2 (en) Method and device for performing channel access in WLAN system
CN114258148A (zh) 无线局域网中的信道接入方法及相关装置
US9936370B2 (en) Scanning method and apparatus in wireless LAN system
US9913292B2 (en) Method and device for restricted access window-based channel access in WLAN system
KR20230048390A (ko) 채널 경쟁 방법 및 관련 장치
WO2013037327A1 (fr) Procédé et dispositif d'émission d'informations
CN114071511B (zh) 管理基本服务集颜色的方法、接入点和站点
US9980287B2 (en) Method and apparatus for access in wireless LAN system
US9615385B2 (en) Method and access point for exchanging frames with a station in a wireless communication system
US9814043B2 (en) Method and apparatus for receiving signal by station in wireless LAN system
US9769846B2 (en) Method and device for performing access in wireless LAN system
US12101827B1 (en) Backoff counting method in a non-simultaneous transmit and receive (NSTR) operation mode
EP4580298A1 (fr) Procédé et appareil de transmission de données
WO2024087994A1 (fr) Procédé et appareil de transmission de données
WO2025176060A1 (fr) Procédé de communication et appareil de communication
JP2025529716A (ja) トリガ送信機会共有メカニズムに基づく通信方法及び通信装置
US20250310986A1 (en) Communication method and apparatus
CN114340032B (zh) 竞争窗口的确定方法、确定装置以及无线通信站点
WO2025185584A1 (fr) Procédé et appareil de communication
WO2025190115A1 (fr) Procédé de communication, appareil, système et support de stockage
WO2024169950A1 (fr) Procédé de communication et appareil de communication
WO2025082314A1 (fr) Procédé de communication et appareil associé
CN107211453B (zh) 一种信道接入方法及信道接入装置
WO2025077590A1 (fr) Procédé et appareil de transmission de service

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 25757655

Country of ref document: EP

Kind code of ref document: A1