WO2023056608A1 - 通信方法和通信装置 - Google Patents

通信方法和通信装置 Download PDF

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Publication number
WO2023056608A1
WO2023056608A1 PCT/CN2021/122671 CN2021122671W WO2023056608A1 WO 2023056608 A1 WO2023056608 A1 WO 2023056608A1 CN 2021122671 W CN2021122671 W CN 2021122671W WO 2023056608 A1 WO2023056608 A1 WO 2023056608A1
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Prior art keywords
connection
site
communication
access point
communication method
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PCT/CN2021/122671
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English (en)
French (fr)
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董贤东
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北京小米移动软件有限公司
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Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to CN202180003128.1A priority Critical patent/CN116250201A/zh
Priority to PCT/CN2021/122671 priority patent/WO2023056608A1/zh
Publication of WO2023056608A1 publication Critical patent/WO2023056608A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path

Definitions

  • the present disclosure relates to the field of wireless communication, and more specifically, to a communication method and a communication device under multi-connection.
  • Wi-Fi technology 320MHz bandwidth transmission, aggregation and coordination of multiple frequency bands, etc. It is expected to increase the rate and throughput by at least four times compared with the existing standards. Its main application scenarios are Video transmission, AR (Augmented Reality, augmented reality), VR (Virtual Reality, virtual reality), etc.
  • the aggregation and coordination of multiple frequency bands refers to the simultaneous communication between devices in the 2.4GHz, 5GHz, and 6GHz frequency bands.
  • a new MAC Media Access Control
  • a new MAC Media Access Control
  • the current multi-band aggregation and system technology will support a maximum bandwidth of 320MHz (160MHz+160MHz), and may also support 240MHz (160MHz+80MHz) and other bandwidths.
  • the station (STA: Station) and the access point (AP: Access Point) can be a multi-link device (MLD: multi-link device), that is, a device that supports sending and/or receiving under multiple connections Function. Therefore, in the current technology, there may be multiple connections between the STA and the AP, and the communication between the two devices under the multiple connections is being researched.
  • MLD multi-link device
  • the two MLDs can negotiate the BA (Block Ack, block confirmation) feedback method, and the multi-STA BA (multi-site BA) feedback method can be supported, that is, the AP will send multiple STAs Feedback on data reception status.
  • the current technology there can be a mixed situation of stations supporting single-connection communication and stations supporting multi-connection communication in the communication environment, however, the current technology lacks an effective way to apply multi-STA BA feedback in this mixed situation. mechanism.
  • An example embodiment of the present disclosure provides a communication method, including: determining a multi-site block confirmation message by an access point device supporting multi-connection communication; sending the message to the first site device and the second site device under the first connection A multi-site block confirmation message, wherein the first site device supports single-connection communication with the access point device, and the second site device supports multi-connection communication with the access point device device, where the first connection is a connection between the first station device and the access point device for establishing block confirmation feedback.
  • a communication method including: in the case where a first station device and a second station device are included in a communication environment, receiving a communication sent from an access point device supporting multi-connection communication under a first connection A multi-site block acknowledgment message, wherein the first site device is a device that supports single-connection communication with the access point device, and the second site device supports multi-connection communication with the access point device
  • the first connection is a connection between the first site device and the access point device for establishing block confirmation feedback.
  • a communication device including: a processing module configured to: determine a multi-site block confirmation message; The device sends the multi-site block confirmation message, wherein the first site device is a device that supports single connection communication with the access point device, and the second site device supports single connection communication with the access point device A device for multi-connection communication, where the first connection is a connection for establishing block confirmation feedback between the first station and the access point device.
  • a communication device including: a transceiver module configured to: receive a multi-connection-supporting multi-connection A multi-site block confirmation message sent by the communicating access point device, wherein the first site device is a device that supports single connection communication with the access point device, and the second site device is a device that supports communication with the access point device
  • the access point device is a device for performing multi-connection communication
  • the first connection is a connection for establishing block confirmation feedback between the first site device and the access point device.
  • an electronic device includes a memory, a processor, and a computer program stored on the memory and executable on the processor.
  • the processor implements the above method when executing the computer program.
  • a computer-readable storage medium storing instructions for performing various operations.
  • a computer program is stored on the computer readable storage medium.
  • the computer program is executed by the processor, the above-mentioned method is realized.
  • the technical solution provided by the exemplary embodiments of the present disclosure enables the BA feedback mechanism to be applied to a scenario where a station supporting single-connection communication and a station supporting multi-connection communication coexist, thereby improving spectrum utilization.
  • FIG. 1 is a flowchart illustrating a communication method according to an embodiment of the present disclosure.
  • FIG. 2 is a detailed diagram illustrating a communication method according to an embodiment of the present disclosure.
  • FIG. 3 is a flowchart illustrating a communication method according to an embodiment of the present disclosure.
  • FIG. 4 is a block diagram illustrating a communication device according to an embodiment of the present disclosure.
  • FIG. 1 is a flowchart illustrating a communication method according to an embodiment of the present disclosure.
  • the communication method shown in FIG. 1 can be applied to an access point device supporting multi-link communication, which may be referred to as "multi-link access point device (AP MLD: Access Point multi-link device) hereinafter.
  • AP MLD Access Point multi-link device
  • the access point device is a wireless switch for a wireless network, and is also an access device for a wireless network.
  • the access point device can be used as a wireless base station, and is mainly used as a bridge for connecting wireless networks and wired networks. With this access point device, wired as well as wireless networks can be integrated.
  • the access point device may include software applications and/or circuitry to enable other types of nodes in the wireless network to communicate with the outside and inside of the wireless network through the access point device.
  • the access point device may be a terminal device or a network device equipped with a Wi-Fi (Wireless Fidelity, wireless fidelity) chip.
  • Wi-Fi Wireless Fidelity, wireless fidelity
  • pre-802.11be STA stations that support single-connection communication
  • 802.11be STA stations that support multi-connection communication
  • the BA feedback can be performed under any TID (Traffic Identifier, communication identifier) mapped connection.
  • a multi-site block confirmation message is determined by an access point device (AP MLD) supporting multi-connection communication.
  • the determined multi-site block acknowledgment message may be a multi-STA BA, that is, the access point device may give feedback on the reception status of data sent by multiple STAs.
  • the AP MLD can determine the multi-STA BA according to whether it receives data sent by multiple STAs.
  • the term "message” may refer to a frame with a specific format (for example, an action (Action) frame, etc.), which is not specifically limited in the present disclosure.
  • the multi-site block acknowledgment message (multi-STA BA) determined in step 110 is sent to the first site device and the second site device under the first connection.
  • the first site device may be a device that supports single connection communication with the AP MLD (that is, a pre-802.11be STA, such as the STA that will be described with reference to FIG. 2 )
  • the second site device may be a device that supports communication with the AP MLD
  • AP MLD is a device for multi-connection communication (i.e.
  • the first connection is the first station device (STA) and AP MLD to establish a block confirmation feedback connection (such as Link1) will be described with reference to FIG. 2 .
  • the pre-802.11be STA since the pre-802.11be STA only supports single-connection communication, if there is a coexistence scenario of the pre-802.11be STA and the 802.11be STA, and it is necessary to feed back the multi-STA BA, the AP MLD can be used in the pre-802.11be STA -
  • the 802.11be STA establishes BA feedback connection with it to perform feedback, and, for 802.11be STA, it needs to receive multi-STA BA under this connection.
  • the multi-site block acknowledgment message (multi-STA BA) in steps 110 and 120 may be a delayed block acknowledgment message. Since the AP MLD according to an embodiment of the present disclosure feeds back the reception status of data sent by multiple STAs at one time, the multi-site block acknowledgment message used for this feedback can be a delayed block acknowledgment message, and this BA feedback method can Signaling is saved, which is beneficial to power saving of equipment.
  • the multi-site block acknowledgment message in step 120 may be sent based on the multicast address assigned to the first site device and the second site device, or based on the broadcast address as the receiving address of the multi-site block acknowledgment message is sent.
  • a multicast address can be assigned to pre-802.11be STA and 802.11be STA (non-AP STA MLD) before the BA is established, or the receiving address of the BA fed back by the AP MLD can be used as the broadcast address.
  • the AP MLD can send a multi-site block confirmation message to the site devices in the group identified by the multicast address.
  • the AP MLD can send a multi-site block confirmation message in a broadcast manner.
  • the multi-site block confirmation message can include an AID (Association Identifier, association identifier) with the site. symbol), for a station that has received a multi-site block acknowledgment message, it can determine whether the received multi-site block acknowledgment message is the feedback of the data sent by itself by parsing out the AID.
  • the method of multicast address saves more power for sites that do not need to receive multi-site block confirmation messages; compared with the method of multicast address, the method of broadcast address does not need to pre-allocate multicast addresses. Streamline the communication process.
  • the communication method according to the embodiments of the present disclosure can enable the BA feedback mechanism to be applied to a scenario where pre-802.11be STAs and 802.11be STAs coexist, thereby improving spectrum utilization.
  • FIG. 1 is only exemplary, and the present disclosure is not limited thereto.
  • a communication method according to an embodiment of the present disclosure will be described in detail below with reference to FIG. 2 .
  • the AP MLD may represent an access point supporting a multi-connection communication function
  • the non-AP STA MLD may represent a station (802.11be STA) supporting a multi-connection communication function, that is, the second station device described with reference to FIG. 1
  • the STA may represent a station (pre-802.11be STA) supporting single connection communication, that is, the first station device described with reference to FIG. 1 .
  • each of the first station device and the second station device may include, but is not limited to: a cellular phone, a smart phone, a wearable device, a computer, a personal digital assistant (PDA), a personal communication system (PCS) device, Personal Information Manager (PIM), Personal Navigation Device (PND), GPS, Multimedia Devices, Internet of Things (IoT) Devices, etc.
  • PDA personal digital assistant
  • PCS personal communication system
  • PIM Personal Information Manager
  • PND Personal Navigation Device
  • GPS Global System
  • Multimedia Devices Internet of Things (IoT) Devices, etc.
  • IoT Internet of Things
  • AP MLD can work under n connections, such as affiliated AP1 to APn
  • non-AP STA MLD can work under n connections, such as affiliated STA1 to STAn, where n is greater than or equal to 2 Integer, the number n of connections can be determined based on the hardware configuration and communication capabilities of AP MLD and non-AP STA MLD.
  • AP MLD can establish a BA feedback mechanism with non-AP STA MLD under n connections (Link1 to Linkn), however, the present disclosure is not limited thereto, and AP MLD can establish n connections with non-AP STA MLD A BA feedback mechanism is established under one or more connections of .
  • Link1 to Linkn may be multiple connections at different frequencies, for example, connections at 2.4GHz, 5GHz, and 6GHz, or several connections at the same or different bandwidths at 2.4GHz, 5GHz, and 6GHz . Additionally, multiple channels can exist under each connection.
  • AP MLD can establish BA with STA under connection Link1, but the present disclosure is not limited thereto, and the BA establishment with AP MLD can be determined differently based on the frequency and channel of single connection supported by STA. Connection, and the connection can be one of multiple connections (Link1 to Linkn) supported by AP MLD and non-AP STA MLD.
  • the AP MLD can receive an add block confirmation request message (ADDBA request) from the STA under Link1.
  • Link1 may correspond to the first connection in step 120 of FIG. 1
  • STA may correspond to the first site device described with reference to FIG. 1, that is, the embodiment according to the present disclosure shown in FIG.
  • the communication method may further include: under the first connection, receiving an add block confirmation request message from the first site device.
  • the AP MLD can send an acknowledgment message (Ack) and an ADDBA response message (ADDBA response) to the STA through Link1 and receive an Ack from the STA.
  • the AP MLD can establish BA feedback with the first site device (STA) under the first connection (Link1).
  • AP MLD can communicate with the second site device (non-AP STA MLD) by receiving ADDBA request from non-AP STA MLD, sending Ack and ADDBA response to it, and receiving Ack from it Build BA feedback.
  • the link used to establish BA feedback between the AP MLD and the non-AP STA MLD may be the same as or different from Link1.
  • the communication method according to the embodiment of the present disclosure may further include: under the first connection described with reference to FIG. Block confirmation request message (ADDBA request).
  • the first connection or other connections may be a connection to which a communication identifier (TID) is mapped.
  • BA feedback may be established under one or more connections or all connections through one of the n connections Link1 to Linkn supported by the AP MLD and the non-AP STA MLD. This can be achieved, for example, by defining information fields in ADDBA request and ADDBA response related to establishing the connection for BA feedback.
  • the embodiments of the present disclosure are not limited thereto, and the ADDBA request, Ack and ADDBA response may be respectively transmitted under each of the n connections Link1 to Linkn, so as to respectively realize the establishment of BA feedback under the corresponding connections.
  • AP MLD can receive one or more data frames (Data frame) and block confirmation request (BA request) from the first site device (STA) through the first connection (Link1); and AP MLD One or more data frames and a BA request can be received from the second station device (non-AP STA MLD) through the connection established with BA feedback in Link1 to Linkn.
  • Data frame data frames
  • BA request block confirmation request
  • STA site device
  • Link1 first connection
  • AP MLD One or more data frames and a BA request can be received from the second station device (non-AP STA MLD) through the connection established with BA feedback in Link1 to Linkn.
  • the AP MLD may determine the multi-STA BA, and send the multi-STA BA to the first site device (STA) and the second site device (non-AP STA MLD) through the first connection (Link1), To feed back the receiving status of the data sent by the first station device (STA) and the second station device (non-AP STA MLD).
  • the BA feedback mechanism can be established under any connection among the multiple connections (Link1 to Linkn), wherein the sending
  • the connection of ADDBA request frame can be any connection of TID mapping, can be identical with the connection in step 120, also can be different, and the BA of feedback can be delayed BA (delayed BA).
  • the BA feedback is performed under which connection.
  • the embodiment shown in Fig. 2 may also include a stage of deleting (Teardown) BA feedback
  • AP MLD may receive a request frame (DELBA request) of deleting BA from the station, And feed back an acknowledgment frame to it to delete the BA feedback.
  • AP MLD can receive the request frame (DELBA request) to delete BA from STA and non-AP STA MLD through Link1, or AP MLD can receive DELBA request from STA through Link1, and any connection from Link1 to Linkn from non-AP MLD AP STA MLD receives DELBA request.
  • the communication method according to the embodiment of the present disclosure can enable the BA feedback mechanism to be applied to a scenario where pre-802.11be STAs and 802.11be STAs coexist, thereby improving spectrum utilization.
  • FIG. 3 is a flowchart illustrating a communication method according to an embodiment of the present disclosure.
  • the communication method shown in FIG. 3 can be applied to stations, for example, a station supporting single connection communication (the first station device or STA in FIG. 2 ) and a station supporting multi-connection communication (the second station device or non STA in FIG. 2 ).
  • stations for example, a station supporting single connection communication (the first station device or STA in FIG. 2 ) and a station supporting multi-connection communication (the second station device or non STA in FIG. 2 ).
  • -AP STA MLD station supporting single connection communication
  • the communication sent from the access point device (AP MLD) supporting multi-connection communication may be received under the first connection.
  • a multi-site block acknowledgment message (e.g., multi-STA BA), wherein the first site device may be a device that supports single-connection communication with the access point device, and the second-site device may be a device that supports multiple connections with the access point device
  • the first connection may be a connection for establishing block confirmation feedback between the first station device and the access point device.
  • the first station device STA and the second station device non-AP STA MLD can receive the multi-STA BA sent from the AP MLD through the first connection Link1.
  • the multi-site block acknowledgment message may be a delayed block acknowledgment message.
  • the multi-site block acknowledgment message may be sent by the access point device based on the multicast address assigned to the first site device and the second site device, or may be based on the broadcast as the receiving address of the multi-site block acknowledgment message The address is sent by the access point device.
  • step 320 communication operations may be performed based on the multi-site block acknowledgment message. For example, when both the first site device and the second site device determine that the data frame sent by them has been received through the multi-site block acknowledgment message, if there is no other data to be sent, then in step 320, the request frame for deleting the BA (DELBA request) can be sent. For example, if any one of the first station device and the second station device determines that the sent data frame has not been received through the multi-site block acknowledgment message, it may try to send the data frame again in step 320 .
  • DELBA request the request frame for deleting the BA
  • the communication method shown in FIG. 3 may further include: under the first connection, the first site device sends an add block confirmation request message. As described with reference to FIG. 2, the first site device STA can send an ADDBA request under Link1.
  • the communication method shown in FIG. 3 may further include: under the first connection or another connection different from the first connection, sending an add block confirmation request message by the second site device.
  • the first connection or other connections may be a connection to which a communication identifier (TID) is mapped.
  • TID communication identifier
  • the second site device non-AP STA MLD can send an ADDBA request through one or more connections from Link1 to Linkn.
  • the operations performed by the first site device STA and the second site device non-AP STA MLD described above with reference to FIG. 2 may also be included in the communication method shown in FIG. 3 , and repeated descriptions are omitted here to avoid redundancy.
  • the communication method according to the embodiments of the present disclosure can enable the BA feedback mechanism to be applied to a scenario where a station supporting single-connection communication and a station supporting multi-connection communication coexist, thereby improving spectrum utilization.
  • FIG. 4 is a block diagram illustrating a communication device according to an embodiment of the present disclosure.
  • a communication device 400 may include a processing module 410 and a transceiving module 420 .
  • the communication device shown in FIG. 4 can be applied to an access point device (AP MLD) or a station device (STA and non-AP STA MLD).
  • AP MLD access point device
  • STA and non-AP STA MLD station device
  • the processing module 410 may be configured to: determine a multi-site block confirmation message; the transceiver module 420 may be configured to: under the first connection A multi-site block acknowledgment message is sent to the first site device and the second site device.
  • the first station device may be a device that supports single-connection communication with the access point device
  • the second station device may be a device that supports multi-connection communication with the access point device
  • the first connection may be a device that supports communication between the first station and the access point device.
  • the ingress device establishes a connection with a block acknowledgment feedback.
  • the communication device 400 may perform the communication method described with reference to FIG. 1 and the operations performed by the AP MLD in FIG. 2 , and repeated descriptions are omitted here for brevity.
  • the transceiver module 420 may be configured as: in the case where the communication environment includes a first station device and a second station device , receiving a multi-site block acknowledgment message sent from an access point device supporting multi-connection communication under the first connection; the processing module 410 may be configured to: control execution of a communication operation based on the multi-site block acknowledgment message.
  • the communication device 400 may perform the communication method described with reference to FIG. 3 and the operations performed by the STA and the non-AP STA MLD in FIG. 2 , and repeated descriptions are omitted here for brevity.
  • the communication device 400 shown in FIG. 4 is only exemplary, and embodiments of the present disclosure are not limited thereto.
  • the communication device 400 may also include other modules, such as a memory module.
  • various modules in the communication device 400 may be combined into more complex modules, or may be divided into more individual modules.
  • the communication method and communication device can enable the BA feedback mechanism to be applied to a scenario where a station supporting single-connection communication and a station supporting multi-connection communication coexist, thereby improving spectrum utilization.
  • the embodiments of the present disclosure also provide an electronic device, which includes a processor and a memory; wherein, the memory stores machine-readable instructions (may also be referred to as the “computer program”); a processor for executing machine-readable instructions to implement the methods described with reference to FIGS. 1-3 .
  • the memory stores machine-readable instructions (may also be referred to as the “computer program”); a processor for executing machine-readable instructions to implement the methods described with reference to FIGS. 1-3 .
  • Embodiments of the present disclosure also provide a computer-readable storage medium, on which a computer program is stored.
  • a computer program is stored.
  • the methods described with reference to FIGS. 1 to 3 are implemented.
  • a processor may be used to implement or execute various exemplary logical blocks, modules and circuits described in conjunction with the present disclosure, for example, CPU (Central Processing Unit, central processing unit), general processing DSP (Digital Signal Processor, Data Signal Processor), ASIC (Application Specific Integrated Circuit, Application Specific Integrated Circuit), FPGA (Field Programmable Gate Array, Field Programmable Gate Array) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof.
  • the processor may also be a combination that realizes computing functions, for example, a combination of one or more microprocessors, a combination of DSP and a microprocessor, and the like.
  • the memory may be, for example, ROM (Read Only Memory, Read Only Memory), RAM (Random Access Memory, Random Access Memory), EEPROM (Electrically Erasable Programmable Read Only Memory, Electrically Erasable Programmable Only Memory) read memory), CD-ROM (Compact Disc Read Only Memory, read-only disc) or other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), magnetic disk storage medium or other magnetic A storage device, or any other medium that can be used to carry or store program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto.
  • ROM Read Only Memory, Read Only Memory
  • RAM Random Access Memory
  • EEPROM Electrically Erasable Programmable Only Memory
  • CD-ROM Compact Disc Read Only Memory, read-only disc
  • optical disc storage including compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.
  • magnetic disk storage medium or other magnetic A storage device or any other medium that

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Abstract

本公开提供一种通信方法和通信装置。所述通信方法可以包括：由支持多连接通信的接入点设备确定多站点块确认消息；在第一连接下向第一站点设备和第二站点设备发送所述多站点块确认消息，其中，所述第一站点设备是支持与所述接入点设备进行单连接通信的设备，所述第二站点设备是支持与所述接入点设备进行多连接通信的设备，所述第一连接是所述第一站点设备与所述接入点设备建立块确认反馈的连接。本公开的示例实施例提供的技术方案能够提高频谱利用率。

Description

通信方法和通信装置 技术领域
本公开涉及无线通信领域，更具体地说，涉及多连接下的通信方法和通信装置。
背景技术
目前的Wi-Fi技术所研究的范围为：320MHz的带宽传输、多个频段的聚合及协同等，期望能够相对于现有的标准提高至少四倍的速率以及吞吐量，其主要的应用场景为视频传输、AR(Augmented Reality，增强现实)、VR(Virtual Reality，虚拟现实)等。
多个频段的聚合以及协同是指设备间同时在2.4GHz、5GHz以及6GHz等的频段下进行通信，对于设备间同时在多个频段下通信需要定义新的MAC(Media Access Control，介质访问控制)机制来进行管理。此外，还期望多频段的聚合以及协同能够支持低时延传输。
目前多频段的聚合以及系统技术中将支持的最大带宽为320MHz(160MHz+160MHz)，此外还可能会支持240MHz(160MHz+80MHz)以及其它带宽。
在目前的技术中，站点(STA：Station)和接入点(AP：Access Point)可以是多连接设备(MLD：multi-link device)，即，支持在多连接下进行发送和/或接收的功能。因此，在目前的技术中，STA与AP之间可以存在多个连接，并且正在对这两种设备在多连接下的通信进行研究。
在目前的技术中，两个MLD可以协商BA(Block Ack，块确认)反馈的方法，并且multi-STA BA(多站点BA)的反馈方式可以被支持，即，AP会对多个STA发送的数据的接收状况进行反馈。此外，基于目前的技术，在通信环境中可以存在支持单连接通信的站点和支持多连接通信的站点的混合情况，然而，目前的技术缺乏在这种混合情况下应用multi-STA  BA反馈的有效机制。
发明内容
本公开的各方面将至少解决上述问题和/或缺点。本公开的各种实施例提供以下技术方案：
根据本公开的示例实施例提供一种通信方法，包括：由支持多连接通信的接入点设备确定多站点块确认消息；在第一连接下向第一站点设备和第二站点设备发送所述多站点块确认消息，其中，所述第一站点设备是支持与所述接入点设备进行单连接通信的设备，所述第二站点设备是支持与所述接入点设备进行多连接通信的设备，所述第一连接是所述第一站点设备与所述接入点设备建立块确认反馈的连接。
根据本公开的示例实施例提供一种通信方法，包括：在通信环境中包括第一站点设备和第二站点设备的情况下，在第一连接下接收从支持多连接通信的接入点设备发送的多站点块确认消息，其中，所述第一站点设备是支持与所述接入点设备进行单连接通信的设备，所述第二站点设备是支持与所述接入点设备进行多连接通信的设备，所述第一连接是所述第一站点设备与所述接入点设备建立块确认反馈的连接。
根据本公开的示例实施例提供一种通信装置，包括：处理模块，被配置为：确定多站点块确认消息；收发模块，被配置为：在第一连接下向第一站点设备和第二站点设备发送所述多站点块确认消息，其中，所述第一站点设备是支持与所述接入点设备进行单连接通信的设备，所述第二站点设备是支持与所述接入点设备进行多连接通信的设备，所述第一连接是所述第一站点与所述接入点设备建立块确认反馈的连接。
根据本公开的示例实施例提供一种通信装置，包括：收发模块，被配置为：在通信环境中包括第一站点设备和第二站点设备的情况下，在第一连接下接收从支持多连接通信的接入点设备发送的多站点块确认消息，其中，所述第一站点设备是支持与所述接入点设备进行单连接通信的设备，所述第二站点设备是支持与所述接入点设备进行多连接通信的设备，所述第一连接是所述第一站点设备与所述接入点设备建立块确认反馈的连接。
根据本公开的示例实施例提供了一种电子装置。所述电子装置包括存储器、处理器以及存储在所述存储器上并在所述处理器上可运行的计算机程序。所述处理器执行所述计算机程序时实现如上所述的方法。
根据本公开的示例实施例提供了一种计算机可读存储介质。所述计算机可读存储介质上存储有计算机程序。该计算机程序被处理器执行时实现如上所述的方法。
本公开的示例实施例提供的技术方案能够使得BA反馈机制应用到支持单连接通信的站点以及支持多连接通信的站点共存的场景，提高频谱利用率。
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通过参照附图详细描述本公开的示例实施例，本公开实施例的上述以及其他特征将更加明显，其中：
图1是示出根据本公开的实施例的通信方法的流程图。
图2是示出根据本公开的实施例的通信方法的详细示图。
图3是示出根据本公开的实施例的通信方法的流程图。
图4是示出根据本公开的实施例的通信装置的框图。
具体实施方式
提供以下参照附图的描述，以帮助全面理解由所附权利要求及其等同物限定的本公开的各种实施例。本公开的各种实施例包括各种具体细节，但是这些具体细节仅被认为是示例性的。此外，为了清楚和简洁，可以省略对公知的技术、功能和构造的描述。
在本公开中使用的术语和词语不限于书面含义，而是仅被发明人所使用，以能够清楚和一致的理解本公开。因此，对于本领域技术人员而言，提供本公开的各种实施例的描述仅是为了说明的目的，而不是为了限制的目的。
应当理解，除非上下文另外清楚地指出，否则这里使用的单数形式“一”、“一个”、“所述”和“该”也可以包括复数形式。应该进一步理解的是，本公开中使用的措辞“包括”是指存在所描述的特征、整数、步骤、操作、 元件和/或组件，但是并不排除存在或添加一个或多个其他特征、整数、步骤、操作、元件、组件和/或它们的组。
将理解的是，尽管术语“第一”、“第二”等在本文中可以用于描述各种元素，但是这些元素不应受这些术语的限制。这些术语仅用于将一个元素与另一个元素区分开。因此，在不脱离示例实施例的教导的情况下，下面讨论的第一元素可以被称为第二元素。
应该理解，当元件被称为“连接”或“耦接”到另一元件时，它可以直接连接或耦接到其他元件，或者也可以存在中间元件。此外，这里使用的“连接”或“耦接”可以包括无线连接或无线耦接。这里使用的术语“和/或”或者表述“……中的至少一个/至少一者”包括一个或多个相关列出的项目的任何和所有组合。
除非另外定义，这里使用的所有术语(包括技术术语和科学术语)，具有与本公开所属领域中的普通技术人员的一般理解相同的意义。
图1是示出根据本公开的实施例的通信方法的流程图。图1所示的通信方法可以应用于支持多连接通信的接入点设备，其在下文可以被称为“多连接接入点设备(AP MLD：Access Point multi-link device)。
接入点设备是用于无线网络的无线交换机，也是无线网络的接入设备。接入点设备可以用作无线基站，主要是用来连接无线网络以及有线网络的桥接器。利用这种接入点设备，可以整合有线以及无线网络。
接入点设备可以包括软件应用和/或电路，以使无线网络中的其他类型节点可以通过接入点设备与无线网络外部及内部进行通信。在一些示例中，作为示例，接入点设备可以是配备有Wi-Fi(Wireless Fidelity，无线保真)芯片的终端设备或网络设备。
在AP MLD所组成的BSS(基本服务集)中会存在着支持单连接通信的站点(在下文可以被称为“pre-802.11be STA”，譬如802.11ax STA)和支持多连接通信的站点(在下文可以被称为“802.11be STA”)，同样multi-STA BA的机制也会应用到其中(即，pre-802.11be STA以及802.11be STA混合存在的场景)。此外，在现有的BA反馈的方法中，BA反馈可以在任一TID(Traffic Identifier，通信标识)映射的连接下进行。然而，在上述pre-802.11be STA以及802.11be STA混合存在的场景中，由于 pre-802.11be STA仅支持单连接通信，因此在任一TID映射的连接下进行BA反馈的这种方法无法适用于multi-STA BA机制。有鉴于此，提出了根据本公开的实施例的通信方法。
参照图1，在步骤110中，由支持多连接通信的接入点设备(AP MLD)确定多站点块确认消息。在本公开的实施例中，所确定的多站点块确认消息可以是multi-STA BA，即，接入点设备可以对多个STA发送的数据的接收状况进行反馈。例如，AP MLD可以根据是否接收到多个STA发送的数据，来确定multi-STA BA。此外，将理解，在本公开的描述中，术语“消息”可以指具有特定格式的帧(例如，行动(Action)帧等)，对此，本公开不做具体限制。
在步骤120中，在第一连接下向第一站点设备和第二站点设备发送在步骤110中确定的多站点块确认消息(multi-STA BA)。在本公开的实施例中，第一站点设备可以是支持与AP MLD进行单连接通信的设备(即pre-802.11be STA，如将参照图2描述的STA)，第二站点设备可以是支持与AP MLD进行多连接通信的设备(即802.11be STA，如将参照图2描述的non-AP STA MLD)，第一连接是第一站点设备(STA)与AP MLD建立块确认反馈的连接(如将参照图2描述的Link1)。
根据本公开的实施例，由于pre-802.11be STA只支持单连接通信，所以如果存在着pre-802.11be STA以及802.11be STA共存的场景，并且需要反馈multi-STA BA，则AP MLD可以在pre-802.11be STA与之建立BA反馈的连接下进行反馈，并且，对于802.11be STA来说，需在此连接下接收multi-STA BA。
作为描述性实施例，步骤110和步骤120中的多站点块确认消息(multi-STA BA)可以是延迟的块确认消息。由于根据本公开的实施例的AP MLD一次对多个STA发送的数据的接收状况进行反馈，因此用于这种反馈的多站点块确认消息可以是延迟的块确认消息，这种BA反馈方式可以节省信令，从而有利于设备的省电。
根据本公开的实施例，步骤120中的多站点块确认消息可以基于分配给第一站点设备和第二站点设备的组播地址被发送，或者基于作为多站点 块确认消息的接收地址的广播地址被发送。例如，可以在BA建立之前给pre-802.11be STA以及802.11be STA(non-AP STA MLD)分配组播地址，或者AP MLD反馈的BA的接收地址可以作为广播地址。在本公开的一个实施例中，通过组播地址，AP MLD可以向组播地址所标识的组内的站点设备发送多站点块确认消息。在本公开的另一实施例中，通过广播地址，AP MLD可以通过广播的方式发送多站点块确认消息，在此情况下，多站点块确认消息可以包括与站点的AID(Association Identifier，关联标识符)有关的信息，对于接收到多站点块确认消息的站点，可以通过解析出AID来确定接收到的多站点块确认消息是否是对其本身发送的数据的反馈。相比于广播地址的方式，组播地址的方式对于不需要接收多站点块确认消息的站点更加省电；而相比于组播地址的方式，广播地址的方式可以不预先分配组播地址，精简通信流程。
根据本公开实施例的通信方法可以使得BA反馈机制应用到pre-802.11be STA以及802.11be STA共存的场景，提高频谱利用率。
将理解，图1所示的通信方法仅是示例性的，本公开不限于此。例如，下面将参照图2对根据本公开的实施例的通信方法进行详细描述。
参照图2，AP MLD可以表示支持多连接通信功能的接入点；non-AP STA MLD可以表示支持多连接通信功能的站点(802.11be STA)，即，参照图1描述的第二站点设备；STA可以表示支持单连接通信的站点(pre-802.11be STA)，即，参照图1描述的第一站点设备。作为示例，第一站点设备和第二站点设备中的每一者可以包括但不限于：蜂窝电话、智能电话、可穿戴设备、计算机、个人数字助理(PDA)、个人通信系统(PCS)设备、个人信息管理器(PIM)、个人导航设备(PND)、全球定位系统、多媒体设备、物联网(IoT)设备等。将理解，虽然在图2中仅示出了一个第一站点设备(STA)和一个第二站点设备(non-AP STA MLD)，但是本公开的实施例不限于此，AP MLD可以与更多个第一站点设备和更多个第二站点设备进行BA通信。
在图2中，AP MLD可以工作在n个连接下，如附属的AP1至APn，non-AP STA MLD可以工作在n个连接下，如附属的STA1至STAn，其中，n是大于等于2的整数，可以基于AP MLD和non-AP STA MLD的硬件配置和通信能 力来确定连接的数量n。为了便于描述，AP MLD可以与non-AP STA MLD在n个连接(Link1至Linkn)下建立BA反馈机制，然而，本公开不限于此，AP MLD可以与non-AP STA MLD在n个连接中的一个或更多个连接下建立BA反馈机制。根据本公开的实施例，Link1至Linkn可以是不同频率下的多个连接，例如，2.4GHz、5GHz、6GHz下的连接等，或2.4GHz、5GHz、6GHz下的几个相同或不同带宽的连接。此外，在每个连接下可以存在多个信道。
此外，在图2中，示出了AP MLD可以与STA在连接Link1下建立BA，然而本公开不限于此，可以基于STA支持的单连接的频率和信道来不同地确定与AP MLD建立BA的连接，并且该连接可以是AP MLD和non-AP STA MLD所支持的多个连接(Link1至Linkn)之一。
参照图2，在BA建立阶段(a)，AP MLD可以在Link1下从STA接收添加块确认请求消息(ADDBA request)。在该实施例中，Link1可以对应于图1的步骤120中的第一连接，STA可以对应于参照图1描述的第一站点设备，也就是说，图1所示的根据本公开的实施例的通信方法还可以包括：在第一连接下，从第一站点设备接收添加块确认请求消息。响应于接收到来自STA的ADDBA request，AP MLD可以通过Link1向STA发送确认消息(Ack)和ADDBA响应消息(ADDBA response)以及从STA接收Ack。通过上述过程，AP MLD可以在第一连接(Link1)下与第一站点设备(STA)建立BA反馈。
此外，在BA建立阶段(a)，AP MLD可以通过从non-AP STA MLD接收ADDBA request，向其发送Ack和ADDBA response，以及从其接收Ack，与第二站点设备(non-AP STA MLD)建立BA反馈。根据本公开的实施例，用于在AP MLD与non-AP STA MLD之间建立BA反馈的连接可以与Link1相同或者不同。换言之，根据本公开的实施例的通信方法还可以包括：在参照图1描述的第一连接或者不同于该第一连接的其他连接下，从第二站点设备(non-AP STA MLD)接收添加块确认请求消息(ADDBA request)。在本公开的实施例中，第一连接或者其他连接可以是通信标识(TID)映射到的连接。
根据本公开的实施例，可以通过AP MLD和non-AP STA MLD支持的 n个连接Link1至Linkn中的一个连接，在一个或更多个连接或者全部连接下建立BA反馈。例如，这可以通过在ADDBA request和ADDBA response定义与建立BA反馈的连接有关的信息域来实现。然而，本公开的实施例不限于此，可以在n个连接Link1至Linkn中的各个连接下分别传输ADDBA request、Ack和ADDBA response，以分别在相应连接下实现BA反馈的建立。
在数据传输&块确认阶段，AP MLD可以通过第一连接(Link1)从第一站点设备(STA)接收一个或多个数据帧(Data frame)、以及块确认请求(BA request)；并且AP MLD可以通过Link1至Linkn中的建立了BA反馈的连接，从第二站点设备(non-AP STA MLD)接收一个或多个数据帧、以及BA request。响应于接收到BA request，AP MLD可以确定multi-STA BA，并且通过第一连接(Link1)向第一站点设备(STA)和第二站点设备(non-AP STA MLD)发送multi-STA BA，以反馈第一站点设备(STA)和第二站点设备(non-AP STA MLD)所发送数据的接收状况。
根据本公开的实施例，在BA机制的建立中，对于non-AP STA MLD(802.11be STA)来说可以在多个连接(Link1至Linkn)中的任意连接下建立BA反馈机制，其中，发送ADDBA request帧的连接可以为TID映射的任意连接，可以与步骤120中的连接相同，也可以不同，并且反馈的BA可以为延迟的BA(delayed BA)。对于pre-802.11be STA来说，需在步骤120中的连接(第一连接或Link1)下进行ADDBA request帧的发送，即，在哪个连接下发送ADDBA request帧则在哪个连接下进行BA反馈。
此外，虽然未在图2中示出，但是图2所示的实施例还可以包括删除(Teardown)BA反馈的阶段，例如，AP MLD可以通过从站点接收删除BA的请求帧(DELBA request)，并且向其反馈确认帧来删除BA反馈。例如，AP MLD可以通过Link1从STA和non-AP STA MLD接收删除BA的请求帧(DELBA request)，或者AP MLD可以通过Link1从STA接收DELBA request，以及通过Link1至Linkn中的任意连接从non-AP STA MLD接收DELBA request。
根据本公开实施例的通信方法可以使得BA反馈机制应用到 pre-802.11be STA以及802.11be STA共存的场景，提高频谱利用率。
图3是示出根据本公开的实施例的通信方法的流程图。图3所示的通信方法可以应用于站点，例如，支持单连接通信的站点(第一站点设备或图2中的STA)和支持多连接通信的站点(第二站点设备或图2中的non-AP STA MLD)。
参照图3，在步骤310中，在通信环境中包括第一站点设备和第二站点设备的情况下，可以在第一连接下接收从支持多连接通信的接入点设备(AP MLD)发送的多站点块确认消息(例如，multi-STA BA)，其中，第一站点设备可以是支持与接入点设备进行单连接通信的设备，第二站点设备可以是支持与接入点设备进行多连接通信的设备，第一连接可以是第一站点设备与接入点设备建立块确认反馈的连接。如参照图2所描述的，第一站点设备STA和第二站点设备non-AP STA MLD可以通过第一连接Link1接收从AP MLD发送的multi-STA BA。
根据本公开的实施例，多站点块确认消息可以是延迟的块确认消息。
根据本公开的实施例，多站点块确认消息可以基于分配给第一站点设备和第二站点设备的组播地址被接入点设备发送，或者可以基于作为多站点块确认消息的接收地址的广播地址被接入点设备发送。
在步骤320中，可以基于多站点块确认消息执行通信操作。例如，当第一站点设备和第二站点设备均通过多站点块确认消息确定其发送的数据帧已经接收到，如果没有其他需要发送的数据，则在步骤320中，用于删除BA的请求帧(DELBA request)可以被发送。例如，第一站点设备和第二站点设备中的任意一个站点通过多站点块确认消息确定所发送的数据帧未被接收到，则可以在步骤320中，尝试再次发送数据帧。
将理解，图3所示的通信方法仅是示例性的，本公开不限于此。
根据本公开的实施例，图3所示的通信方法还可以包括：在第一连接下，由第一站点设备发送添加块确认请求消息。如参照图2所描述的，第一站点设备STA可以在Link1下发送ADDBA request。
根据本公开的实施例，图3所示的通信方法还可以包括：在第一连接或者不同于第一连接的其他连接下，由第二站点设备发送添加块确认请求消息。根据本公开的实施例，第一连接或者其他连接可以是通信标识(TID) 映射到的连接。如参照图2所描述的，第二站点设备non-AP STA MLD可以通过Link1至Linkn中的一个或多个连接发送ADDBA request。
上述参照图2描述的由第一站点设备STA和第二站点设备non-AP STA MLD执行的操作也可以包括在图3所示的通信方法中，在此省略重复的描述，以避免冗余。
根据本公开实施例的通信方法可以使得BA反馈机制应用到支持单连接通信的站点以及支持多连接通信的站点共存的场景，提高频谱利用率。
图4是示出根据本公开的实施例的通信装置的框图。
参照图4，通信装置400可以包括处理模块410和收发模块420。图4所示的通信装置可以应用于接入点设备(AP MLD)或者站点设备(STA和non-AP STA MLD)。
在图4所示的通信装置应用于接入点设备(AP MLD)的情况下，处理模块410可以被配置为：确定多站点块确认消息；收发模块420可以被配置为：在第一连接下向第一站点设备和第二站点设备发送多站点块确认消息。例如，第一站点设备可以是支持与接入点设备进行单连接通信的设备，第二站点设备可以是支持与接入点设备进行多连接通信的设备，第一连接可以是第一站点与接入点设备建立块确认反馈的连接。在此情况下，通信装置400可以执行参照图1所描述的通信方法以及图2中的由AP MLD执行的操作，为了简明，在此省略重复的描述。
在图4所示的通信装置应用于站点设备(STA和non-AP STA MLD)的情况下，收发模块420可以被配置为：在通信环境中包括第一站点设备和第二站点设备的情况下，在第一连接下接收从支持多连接通信的接入点设备发送的多站点块确认消息；处理模块410可以被配置为：基于多站点块确认消息控制通信操作的执行。在此情况下，通信装置400可以执行参照图3所描述的通信方法以及图2中的由STA和non-AP STA MLD执行的操作，为了简明，在此省略重复的描述。
此外，图4所示的通信装置400仅是示例性的，本公开的实施例不限于此，例如，通信装置400还可以包括其他模块，例如，存储器模块等。此外，通信装置400中的各个模块可以组合成更复杂的模块，或者可以划分为更多单独的模块。
根据本公开的实施例的通信方法和通信装置可以使得BA反馈机制应用到支持单连接通信的站点以及支持多连接通信的站点共存的场景，提高频谱利用率。
基于与本公开的实施例所提供的方法相同的原理，本公开的实施例还提供了一种电子装置，该电子装置包括处理器和存储器；其中，存储器中存储有机器可读指令(也可以称为“计算机程序”)；处理器，用于执行机器可读指令以实现参照图1至图3描述的方法。
本公开的实施例还提供了一种计算机可读存储介质，该计算机可读存储介质上存储有计算机程序，计算机程序被处理器执行时实现参照图1至图3描述的方法。
在示例实施例中，处理器可以是用于实现或执行结合本公开内容所描述的各种示例性的逻辑方框、模块和电路，例如，CPU(Central Processing Unit，中央处理器)、通用处理器、DSP(Digital Signal Processor，数据信号处理器)、ASIC(Application Specific Integrated Circuit，专用集成电路)、FPGA(Field Programmable Gate Array，现场可编程门阵列)或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合、DSP和微处理器的组合等。
在示例实施例中，存储器可以是，例如，ROM(Read Only Memory，只读存储器)、RAM(Random Access Memory，随机存取存储器)、EEPROM(Electrically Erasable Programmable Read Only Memory，电可擦可编程只读存储器)、CD-ROM(Compact Disc Read Only Memory，只读光盘)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的程序代码并能够由计算机存取的任何其他介质，但不限于此。
应该理解的是，虽然附图的流程图中的各个步骤按照箭头的指示依次显示，但是这些步骤并不是必然按照箭头指示的顺序依次执行。除非本文中有明确的说明，这些步骤的执行并没有严格的顺序限制，其可以以其他 的顺序执行。此外，附图的流程图中的至少一部分步骤可以包括多个子步骤或者多个阶段，这些子步骤或者阶段并不必然是在同一时刻执行完成，而是可以在不同的时刻执行，其执行顺序也不必然是依次进行，而是可以与其他步骤或者其他步骤的子步骤或者阶段的至少一部分轮流或者交替地执行。
虽然已经参照本公开的某些实施例示出和描述了本公开，但是本领域技术人员将理解，在不脱离本公开的范围的情况下，可以在形式和细节上进行各种改变。因此，本公开的范围不应被限定为受限于实施例，而是应由所附权利要求及其等同物限定。

Claims (16)

  1. 一种通信方法，包括：
    由支持多连接通信的接入点设备确定多站点块确认消息；
    在第一连接下向第一站点设备和第二站点设备发送所述多站点块确认消息，
    其中，所述第一站点设备是支持与所述接入点设备进行单连接通信的设备，所述第二站点设备是支持与所述接入点设备进行多连接通信的设备，所述第一连接是所述第一站点设备与所述接入点设备建立块确认反馈的连接。
  2. 根据权利要求1所述的通信方法，其中，所述多站点块确认消息是延迟的块确认消息。
  3. 根据权利要求1所述的通信方法，其中，所述通信方法还包括：
    在所述第一连接下，从所述第一站点设备接收添加块确认请求消息。
  4. 根据权利要求1所述的通信方法，其中，所述通信方法还包括：
    在所述第一连接或者不同于所述第一连接的其他连接下，从所述第二站点设备接收添加块确认请求消息。
  5. 根据权利要求4所述的通信方法，其中，所述第一连接或者所述其他连接是通信标识映射到的连接。
  6. 根据权利要求1所述的通信方法，其中，所述多站点块确认消息基于分配给所述第一站点设备和所述第二站点设备的组播地址被发送，或者基于作为所述多站点块确认消息的接收地址的广播地址被发送。
  7. 一种通信方法，包括：
    在通信环境中包括第一站点设备和第二站点设备的情况下，在第一连接下接收从支持多连接通信的接入点设备发送的多站点块确认消息，
    其中，所述第一站点设备是支持与所述接入点设备进行单连接通信的设备，所述第二站点设备是支持与所述接入点设备进行多连接通信的设备，所述第一连接是所述第一站点设备与所述接入点设备建立块确认反馈的连接。
  8. 根据权利要求7所述的通信方法，其中，所述多站点块确认消息是延迟的块确认消息。
  9. 根据权利要求7所述的通信方法，其中，所述通信方法还包括：
    在所述第一连接下，由所述第一站点设备发送添加块确认请求消息。
  10. 根据权利要求7所述的通信方法，其中，所述通信方法还包括：
    在所述第一连接或者不同于所述第一连接的其他连接下，由所述第二站点设备发送添加块确认请求消息。
  11. 根据权利要求10所述的通信方法，其中，所述第一连接或者所述其他连接是通信标识映射到的连接。
  12. 根据权利要求7所述的通信方法，其中，所述多站点块确认消息基于分配给所述第一站点设备和所述第二站点设备的组播地址被所述接入点设备发送，或者基于作为所述多站点块确认消息的接收地址的广播地址被所述接入点设备发送。
  13. 一种通信装置，包括：
    处理模块，被配置为：确定多站点块确认消息；
    收发模块，被配置为：在第一连接下向第一站点设备和第二站点设备发送所述多站点块确认消息，
    其中，所述第一站点设备是支持与所述接入点设备进行单连接通信的设备，所述第二站点设备是支持与所述接入点设备进行多连接通信的设备，所述第一连接是所述第一站点与所述接入点设备建立块确认反馈的连接。
  14. 一种通信装置，包括：
    收发模块，被配置为：在通信环境中包括第一站点设备和第二站点设备的情况下，在第一连接下接收从支持多连接通信的接入点设备发送的多站点块确认消息，
    其中，所述第一站点设备是支持与所述接入点设备进行单连接通信的设备，所述第二站点设备是支持与所述接入点设备进行多连接通信的设备，所述第一连接是所述第一站点设备与所述接入点设备建立块确认反馈的连接。
  15. 一种电子装置，包括存储器、处理器以及存储在所述存储器上并在所述处理器上可运行的计算机程序，其中，所述处理器执行所述计算机程序时实现权利要求1至6中的任一项或者权利要求7至12中的任一项所述的方法。
  16. 一种计算机可读存储介质，其中，所述计算机可读存储介质上存储有计算机程序，该计算机程序被处理器执行时实现权利要求1至6中的任一项或者权利要求7至12中的任一项所述的方法。
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