WO2022236711A1 - 多连接下的通信方法和通信装置 - Google Patents

多连接下的通信方法和通信装置 Download PDF

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Publication number
WO2022236711A1
WO2022236711A1 PCT/CN2021/093132 CN2021093132W WO2022236711A1 WO 2022236711 A1 WO2022236711 A1 WO 2022236711A1 CN 2021093132 W CN2021093132 W CN 2021093132W WO 2022236711 A1 WO2022236711 A1 WO 2022236711A1
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Prior art keywords
connection
communication
message frame
communication method
information
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PCT/CN2021/093132
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English (en)
French (fr)
Inventor
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 CN202180001398.9A priority Critical patent/CN115606254A/zh
Priority to PCT/CN2021/093132 priority patent/WO2022236711A1/zh
Publication of WO2022236711A1 publication Critical patent/WO2022236711A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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-connection device (MLD: multi-link device), that is, it supports simultaneous sending and receiving under multiple connections at the same time. /or receive functions. 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-connection device
  • An exemplary embodiment according to the present disclosure provides a communication method under multi-connection.
  • the communication method may include: determining a first message frame, wherein the first message frame includes: information about at least one connection in the multi-connection that will be switched to an awake state for multi-connection communication; sending the first message frame.
  • An exemplary embodiment according to the present disclosure provides a communication method under multi-connection.
  • the communication method may include: receiving a first message frame, wherein the first message frame includes: information about at least one connection in the multi-connection that will be switched to an awake state for multi-connection communication; based on the first message Frames perform communication operations.
  • a communication device under multi-connection may include: a processing module configured to: determine a first message frame, wherein the first message frame includes: information about at least one connection among the multi-connections that will be switched to an awake state for multi-connection communication ; A transceiver module configured to: send the first message frame.
  • a communication device under multi-connection may include: a transceiver module configured to: receive a first message frame, wherein the first message frame includes: information about at least one connection in the multi-connection that will be switched to an awake state for multi-connection communication ; a processing module configured to: control execution of a communication operation based on the first message frame.
  • 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.
  • FIG. 1 is an exemplary diagram illustrating a communication scenario under multiple connections.
  • FIG. 2 is a flowchart illustrating a communication method under multi-connection according to an example embodiment.
  • 3 and 4 both illustrate interactive communications between an initiator and a recipient according to example embodiments.
  • FIG. 5 is a flowchart illustrating another communication method under multi-connection according to an example embodiment.
  • FIG. 6 is a block diagram illustrating a communication device under multi-connection according to an example embodiment.
  • FIG. 1 is an exemplary diagram illustrating a communication scenario under multiple connections.
  • a basic service set may consist of an AP and one or more stations (STA) communicating with the AP.
  • a basic service set can be connected to the distribution system DS (Distribution System) through its AP, and then connected to another basic service set to form an extended service set ESS (Extended Service Set).
  • DS Distribution System
  • ESS Extended Service Set
  • An AP is a wireless switch for a wireless network and is also the core of a wireless network.
  • AP equipment can be used as a wireless base station, mainly used as a bridge for connecting wireless networks and wired networks. With this access point AP, wired and wireless networks can be integrated.
  • the AP 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 AP.
  • the AP 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
  • stations may include, but are not limited to: cellular phones, smart phones, wearable devices, computers, personal digital assistants (PDAs), personal communication system (PCS) devices, personal information managers (PIMs), personal navigation devices (PND), GPS, multimedia devices, Internet of Things (IoT) devices, etc.
  • PDAs personal digital assistants
  • PCS personal communication system
  • PIMs personal information managers
  • PND personal navigation devices
  • GPS GPS
  • multimedia devices Internet of Things (IoT) devices, etc.
  • IoT Internet of Things
  • AP and STA may support multi-connection devices, for example, may be represented as AP MLD and non-AP STA MLD respectively, as shown in FIG. 1 .
  • AP MLD AP MLD
  • non-AP STA MLD non-AP STA MLD
  • the AP MLD may represent an access point supporting the multi-connection communication function
  • the non-AP STA MLD may represent a station supporting the multi-connection communication function.
  • AP MLD can work under three connections, such as AP1, AP2 and AP3 shown in Figure 1
  • non-AP STA MLD can also work under three connections, as shown in Figure 1 STA1, STA2 and STA3.
  • AP1 and STA1 communicate through the corresponding first link Link 1.
  • AP2 and AP3 communicate with STA2 and STA3 through the second link Link 2 and the third link Link 3 respectively.
  • Link 1 to Link 3 can 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.
  • an AP MLD may be connected to multiple non-AP STA MLDs, or under each connection, the AP Can communicate with several other types of sites.
  • the power saving method of the device for example, non-AP STA MLD and its affiliated stations STA1, STA2 and STA3 is: the power management of the control frame (control frame) frame header
  • the (Power Management) subfield is "1", and enters the power saving mode after receiving a response from the counterpart (for example, AP MLD and its attached access points AP1, AP2, and AP3).
  • stations under different connections can enter power saving mode.
  • the STA's initial power management mode is active mode ; when another connection is enabled for a STA that is part of a non-AP STA MLD via signaling sent over a connection (multiple connection establishment or TID-to-connection mapping update), immediately following this exchange, the STA's initial The power management mode is power saving mode, and its power state is sleep.
  • Each STA of a non-AP STA MLD running on an enabled connection shall maintain its own power management mode and power state, as defined by Power Management) and Target Wake Time (TWT). Frame exchange may take place on an enabled connection while the non-AP STA MLD's STA operating on the enabled connection is awake.
  • the device Under multi-connection, the device needs to support multi-connection communication, for example, perform multi-connection communication in a simultaneous send and receive (STR) manner or a non-simultaneous send and receive (NSTR) manner.
  • STR simultaneous send and receive
  • NSTR non-simultaneous send and receive
  • the initial association process for example, multi-connection establishment: multi-link setup
  • the communication identification to connection mapping process ie, TID-To-Link mapping process
  • FIG. 2 is a flowchart illustrating a communication method under multi-connection according to an example embodiment.
  • the communication method shown in Figure 2 can be applied to the initiator, for example, the initiator can be non-AP STA MLD or AP MLD. If the initiator is non-AP STA MLD, the corresponding receiver may be AP MLD; if the initiator is AP MLD, the corresponding receiver may be non-AP STA MLD.
  • a first message frame may be determined.
  • the first message frame may include: information of at least one connection among the multi-connections that will be switched to an awake state for multi-connection communication.
  • the multi-connection may be multiple connections established between the initiator and the receiver, and at least one connection may be a connection to be awakened to perform multi-connection communication.
  • the first message frame may be referred to as an initial message frame of multi-connection communication. In an embodiment of the present disclosure, such an initial message frame (first message frame) is defined to wake up a station in PS mode for multi-connection communication.
  • the information included in the first message frame may be carried in the form of an information element (IE, information element), and may include at least one of a power management identifier, a connection identifier, or a delay identifier.
  • IE information element
  • the information included in the first message frame may have a format as shown in Table 1 below.
  • each content shown in Table 1 exists independently, and these contents are exemplarily listed in the same table, but it does not mean that all the contents in the table must exist at the same time as shown in the table. Therefore, those skilled in the art can understand that each content in Table 1 of the present disclosure is an independent embodiment. It will also be understood that the content shown in Table 1 is exemplary only, and the present disclosure is not limited thereto. For example, Table 1 may also include content such as element identification (Element ID), length (Length), or may be omitted from Table 1 part of the content.
  • element ID element identification
  • Length length
  • the information included in the first message frame may include a power management identifier (PM, Power Management).
  • PM Power Management
  • the voltage management flag is set to a first value (such as but not limited to "0"), it is flagged that a switch to the wake-up state is to be made.
  • a first value such as but not limited to "0”
  • PMs may be included, for example, there may be PMs respectively corresponding to Link ID1 and Link ID2.
  • the information included in the first message frame may include a connection identifier corresponding to at least one connection to be switched to the awake state, such as Link ID1 and Link ID2 in Table 1.
  • a connection identifier corresponding to at least one connection to be switched to the awake state
  • each individual Link ID can be used to represent the connection identifier.
  • each Link ID can have multiple bits to identify the operating spectrum, bandwidth/channel, and BSSID Combination information of (basis service set identifier).
  • Using a separate Link ID to represent the connection identifier can use a simple encoding and decoding method to carry information.
  • the connection identifier can be expressed in the form of a Link set.
  • the Link set can have multiple bits, and each bit corresponds to the originating For multiple connections established between the party and the receiver, when the corresponding bit is set to a specific value (such as but not limited to "1"), the connection corresponding to the bit can be switched to the awake state. Representing the connection identifier in the form of Link set can reduce the number of bits of information, thereby reducing the amount of data that needs to be transmitted in communication.
  • PM When “PM” in Table 1 is set to the first value, it can indicate that the connections identified by the connection identifiers Link ID1 and Link ID2 will switch to the wake-up state, in other words, the devices corresponding to the connection identifiers Link ID1 and Link ID2, etc. (eg, station STA) will be woken up for multi-connection communication.
  • the PM and the connection identifiers Link ID1 and Link ID2 are shown in Table 1 at the same time, the present disclosure is not limited thereto. For example, when all multiple connections established between the initiator and the receiver need to be woken up, the One of the PM and the connection identification is omitted, thereby simplifying the signaling.
  • the information included in the first message frame may also include delay identifiers, such as Delay 1 and Delay 2 in Table 1.
  • the delay identifier may be used to identify a delay time for a device under at least one connection to switch to an awake state.
  • Delay 1 may refer to the time delay for the device corresponding to Link ID1 (for example, station STA) to switch from the sleep state (doze state) to the wake state (awake state), or may refer to switching from the sleep state to the wake state. The maximum delay in the wake state.
  • Link ID1 for example, station STA
  • Delay 1 and Delay 2 etc. are shown in Table 1, if the delays of the devices under the connection to be switched to the wake-up state are all the same, only one delay identifier can be included, or when required When switching to the wake-up state immediately, the delay flag can be omitted.
  • delay Delay 1, Delay 2, etc. can also be identified in a multi-link (ML, multi-link) information element (that is, in a different information element from PM and Link ID1, Link ID2), for example, delay Delay 1, Delay 2, etc. can be 0us, 8us, etc. Generally speaking, the value of the delay under each connection may be the same.
  • ML multi-link
  • Link ID1 Link ID2
  • a first message frame may be sent.
  • the first message frame may be sent from the initiator to the receiver under any connection among multiple connections, wherein the any connection is not a connection in the power saving mode.
  • step 220 may be performed after the establishment of multiple connections is completed. In other words, step 220 is performed before multi-connection communication is to be performed.
  • the communication method shown in FIG. 2 may further include: (i.e., non-AP STA MLD) in the case of sending the first message frame, receive a second message frame from an access point (i.e., AP MLD) supporting multi-connection communication, where the second message frame may include: the access point
  • the entry point recommends information about the connection to be switched to the awake state based on the communication environment.
  • the communication environment may include load conditions and/or access delays, however, the present disclosure is not limited thereto, for example, the communication environment may also include: network conditions, hardware capabilities of sending/receiving devices, service types, and related protocols Regulations, etc. This will be described in more detail later with reference to FIG. 3 .
  • FIG. 3 is a diagram illustrating interactive communications between an initiator and a recipient according to an example embodiment.
  • the initiator can be non-AP STA MLD
  • the receiver can be AP MLD.
  • multiple connections can be established between the initiator non-AP STA MLD and the receiver AP MLD.
  • multiple connections can be established by the following method: the initiator non-AP STA MLD can send a detection request frame, an association request frame or a re-association request frame to the receiver AP MLD, and receive a feedback frame from the receiver AP MLD, for example, Probe response frame, association response frame or re-association response frame, etc. It will be understood that this is for illustration only, and embodiments of establishing multiple connections are not limited thereto.
  • S310 may also indicate a TID-to-Link mapping process.
  • the initiator non-AP STA MLD may determine the first message frame, and send the first message frame in S330.
  • the first message frame may carry at least one of a power management identifier, a connection identifier or a delay identifier, that is, S320 and S330 may be similar to steps 210 and 210 described with reference to Figure 2 220. For simplicity, repeated descriptions are omitted here.
  • non-AP STA MLD in order to perform multi-connection communication, non-AP STA MLD can determine the connection that will switch to the wake-up state according to its own communication conditions, and send related information to AP MLD.
  • the AP MLD can obtain the information of the connection to be woken up determined by the non-AP STA MLD through parsing, and can determine whether these connections can be accepted accordingly. If the AP MLD, for example, determines that the connection determined by the non-AP STA MLD is not acceptable according to its communication environment, it may recommend to the non-AP STA MLD the connection that will be awakened for multi-connection communication, for example, sending a second message in S350 frame.
  • the second message frame may include: information about the connection to be switched to the awake state recommended by the access point based on the communication environment.
  • the communication environment may include load conditions and/or access delays, however, the present disclosure is not limited thereto, for example, the communication environment may also include: network conditions, hardware capabilities of sending/receiving devices, service types, and related protocols Regulations, etc. If the AP MLD, for example, determines that the connection determined by the non-AP STA MLD is acceptable according to its communication environment, then S340 and S350 can be omitted, and a confirmation message frame is fed back to the non-AP STA MLD, and then multi-connection communication is performed in S360. In the embodiment of the present disclosure, the initiator and the receiver can negotiate the connection to be awakened for multi-connection communication through S320 to S350, which increases the flexibility of the system.
  • the initiator and receiver can perform multi-connection communication, for example, perform signaling interaction under multiple connections in the form of STR or NSTR or data transfer.
  • the initiator may send a third message frame to the receiver, where the third message frame may include information that at least one connection in the wake-up state enters the power saving mode.
  • the third message frame may carry a PM and/or a connection identifier set to a second value (such as but not limited to "1") to indicate that the corresponding connection will enter the power saving mode.
  • the third message frame may carry a delay identifier, which indicates that the corresponding connection enters the power saving mode after a certain delay, thereby improving the reliability of multi-connection communication.
  • the initiator may receive an acknowledgment message frame about the third message frame from the receiver. That is to say, after the multi-connection communication is completed, through S370 and S380, the initiator can inform the receiver that the connection identified in S320 or S340 can enter the sleep state from the wake-up state, so that the device (station) can enter the power saving mode to Save electricity.
  • FIG. 4 is a diagram illustrating interactive communications between an initiator and a recipient according to an example embodiment.
  • the initiator can be the AP MLD
  • the receiver can be the non-AP STA MLD.
  • multiple connections can be established between the initiator AP MLD and the receiver non-AP STA MLD.
  • multiple connections can be established in the following way: the initiator AP MLD can broadcast a beacon frame to the receiver non-AP STA MLD; after receiving the beacon frame, the receiver non-AP STA MLD can send an association message to the initiator AP MLD request frame or re-association request frame; the initiator AP MLD can feed back an association response frame or a re-association response frame to complete the establishment of multiple connections.
  • S410 may also indicate a TID-to-Link mapping process.
  • the initiator AP MLD may determine the first message frame, and send the first message frame in S430.
  • the first message frame may carry at least one of a power management identifier, a connection identifier, or a delay identifier.
  • the initiator AP MLD may determine the first message frame according to the communication environment (for example, load condition, access delay, network condition, hardware capability of sending/receiving equipment, service type, related protocol specification, etc.) determine the connection that will be woken up for multi-connection communication.
  • the first message frame in S420 may be similar to the format described with reference to Table 1, and repeated descriptions are omitted here to avoid redundancy.
  • the initiator AP MLD may receive an acknowledgment message frame from the receiver non-AP STA MLD, that is, the initiator confirms that the non-AP STA MLD has been aware of the connection to be awakened. Multi-connection communication can then be performed in S450.
  • the initiator AP MLD may send the receiver non-AP STA MLD to the receiver non-AP STA MLD, and in S470, the initiator AP MLD may receive an acknowledgment about the third message frame from the receiver non-AP STA MLD message frame, so that at least one connection in the wake-up state in the multi-connection communication can enter the power saving mode.
  • the non-AP STA MLD at the receiver can also recommend the AP MLD to the initiator AP MLD according to its own communication conditions to use the Other connections for multi-connection communication.
  • the communication method under multi-connection may define a multi-connection communication initial message frame (for example, the first message frame), and its initiator may be non-AP STA MLD or AP MLD (regardless of being in PS mode ).
  • an initial message frame (for example, a first message frame) is sent under any connection (including an initial association (multi-link setup/TID-to-Link mapping) connection) that will perform multi-connection communication, wherein the initial message
  • the Power Management subfield of the frame control field of the frame (for example, the first message frame) is set to, for example, "0", indicating that the connection is switched to the awake state.
  • the initial message frame (for example, the first message frame) may also include a connection identifier to be in an awake state. Specifically, it may appear in the form of IE, for example, link ID+PM identification bit, wherein, the link ID may be multiple (connections that have been activated during the initial association process).
  • the initial message frame (for example, the first message frame) it may include the time delay for each connected device to switch from the doze state to the awake state, or the maximum time delay required to switch to the awake state.
  • the recipient of the initial message frame may feed back an acknowledgment message frame about the initial message frame to the initiator.
  • the receiver can feed back a simple acknowledgment frame to the initiator.
  • the receiver AP MLD can, according to factors such as the BSS load situation and the access delay under the connection that needs to be awakened, for example, in the feedback confirmation message frame (for example, the second message frame) In , it is recommended to wake up the connection to non-AP STA MLD.
  • the initiator can set the Power Management subfield of the frame control domain of the last frame to, for example, "1" to indicate that the PS mode is entered, and the receiver can respond to the last frame feedback confirmation message frame.
  • the interaction of signaling in the multi-connection communication can be reduced, so that the station in the PS state can perform the multi-connection communication, and the spectrum utilization efficiency can be improved.
  • FIG. 5 is a flowchart illustrating another communication method under multi-connection according to an example embodiment.
  • the communication method shown in FIG. 5 can be applied to a receiver, for example, the receiver can be an AP MLD or a non-AP STA MLD.
  • the receiver performing the communication method in Figure 5 may be an AP MLD; when the initiator is an AP MLD, the corresponding receiver Can be non-AP STA MLD.
  • a first message frame may be received.
  • the first message frame includes: information of at least one connection among the multi-connections that is to be switched to an awake state for multi-connection communication.
  • the information may include: a power management flag, wherein, when the voltage management flag is set to the first value, it is flag that the state will be switched to the wake-up state.
  • the information may include: a connection identifier corresponding to at least one connection.
  • the information may further include: a delay identifier, where the delay identifier may be used to identify a delay time for a device under at least one connection to switch to an awake state. That is, as in the embodiment in Table 1, the first message frame may carry at least one of a power management identifier, a connection identifier, or a delay identifier, and repeated descriptions are omitted here for brevity.
  • a communication operation may be performed based on the first message frame.
  • the receiver feeds back a confirmation message frame to the initiator.
  • the station supporting multi-connection communication (initiating The party is a non-AP STA MLD) to send a second message frame, wherein the second message frame may include: the access point recommends based on the communication environment (for example, load conditions and/or access delays, etc.) that it will switch to the wake-up state information about the connection.
  • the information carried in the second message frame may include at least one of a power management identifier, a connection identifier or a delay identifier, that is, the format may be similar to Table 1, and repeated descriptions are omitted here for brevity.
  • the communication method shown in FIG. 5 may further include: receiving a third message frame, wherein the third message frame may include information that at least the connection in the wake-up state enters the power saving mode, that is, S370 and S380 in FIG. 3 and FIG. 4 .
  • the communication method shown in FIG. 5 is only exemplary, and the present disclosure is not limited thereto.
  • the communication method shown in FIG. 5 may include the operations performed by the receiver in FIG. 3 and FIG. 4 .
  • FIG. 6 is a block diagram illustrating a communication device 600 under multi-connection according to an example embodiment.
  • a communication device 600 may include a processing module 610 and a transceiving module 620 .
  • the communication device shown in FIG. 6 can be applied to the initiator or the receiver.
  • the corresponding receiver when the initiator is a non-AP STA MLD, the corresponding receiver may be an AP MLD; when the initiator is an AP MLD, the corresponding receiver may be a non-AP STA MLD.
  • the processing module 610 can be configured to: determine the first message frame, where the first message frame can include: the multi-connection will switch to the awake state to Information about at least one connection performing multi-connection communication; the transceiver module 620 may be configured to: send a first message frame. That is, in this case, the communication device 600 may perform the communication method described with reference to FIG. 2 and the operations performed by the initiator in FIGS. 3 and 4 , and repeated descriptions are omitted here for brevity.
  • the transceiver module 620 may be configured to: receive a first message frame, wherein the first message frame may include: the multi-connection will switch to the wake-up state to perform The information of at least one connection of the multi-connection communication; the processing module 610 may be configured to: control the execution of the communication operation based on the first message frame. That is, in this case, the communication device 600 may perform the communication method described with reference to FIG. 5 and the operations performed by the receiver in FIGS. 3 and 4 , and repeated descriptions are omitted here for brevity.
  • the communication device 600 shown in FIG. 6 is only exemplary, and embodiments of the present disclosure are not limited thereto.
  • the communication device 600 may also include other modules, such as a memory module.
  • various modules in the communication device 600 may be combined into more complex modules, or may be divided into more individual modules.
  • the communication method and communication device can reduce signaling interaction, so that stations in the PS state can perform multi-connection communication, and improve spectrum utilization efficiency.
  • 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 operations described with reference to Figures 2-5.
  • Embodiments of the present disclosure also provide a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the operations described with reference to FIG. 2 to FIG. 5 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

本公开提供多连接下的通信方法和通信装置。所述通信方法可以包括：确定第一消息帧，其中，所述第一消息帧包括：多连接中的将要切换至唤醒状态以进行多连接通信的至少一个连接的信息；发送所述第一消息帧。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

多连接下的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。
多个频段的聚合及协同是指设备间同时在2.4GHz、5GHz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及协同能够支持低时延传输。
目前多频段的聚合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)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，支持在同一时刻能够在多连接下同时发送和/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。
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多连接下的通信方法。所述通信方法可以包括：确定第一消息帧，其中，所述第一消息帧包括：多连接中的 将要切换至唤醒状态以进行多连接通信的至少一个连接的信息；发送所述第一消息帧。
根据本公开的示例实施例提供一种多连接下的通信方法。所述通信方法可以包括：接收第一消息帧，其中，所述第一消息帧包括：多连接中的将要切换至唤醒状态以进行多连接通信的至少一个连接的信息；基于所述第一消息帧执行通信操作。
根据本公开的示例实施例提供一种多连接下的通信装置。所述通信装置可以包括：处理模块，被配置为：确定第一消息帧，其中，所述第一消息帧包括：多连接中的将要切换至唤醒状态以进行多连接通信的至少一个连接的信息；收发模块，被配置为：发送所述第一消息帧。
根据本公开的示例实施例提供一种多连接下的通信装置。所述通信装置可以包括：收发模块，被配置为：接收第一消息帧，其中，所述第一消息帧包括：多连接中的将要切换至唤醒状态以进行多连接通信的至少一个连接的信息；处理模块，被配置为：基于所述第一消息帧控制通信操作的执行。
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提高频谱利用率。
附图说明
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是示出多连接下的通信场景的示例性示图。
图2是示出根据示例实施例的多连接下的通信方法的流程图。
图3和图4均示出根据示例实施例的发起方与接收方之间的交互通信。
图5是示出根据示例实施例的多连接下的另一通信方法的流程图。
图6是示出根据示例实施例的多连接下的通信装置的框图。
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是示出多连接下的通信场景的示例性示图。
在无线局域网中，一个基本服务集(BSS)可以由AP以及与AP通信的一个或多个站点(STA)构成。一个基本服务集可以通过其AP连接到分配系统DS(Distribution System)，然后再接入到另一个基本服务集， 构成扩展的服务集ESS(Extended Service Set)。
AP是用于无线网络的无线交换机，也是无线网络的核心。AP设备可以用作无线基站，主要是用来连接无线网络及有线网络的桥接器。利用这种接入点AP，可以整合有线及无线网络。
AP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AP与无线网络外部及内部进行通信。在一些示例中，作为示例，AP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。
作为示例，站点(STA)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。
在本公开的示例实施例中，AP和STA可以支持多连接的设备，例如，可以被分别表示为AP MLD和non-AP STA MLD，如图1所示。为了便于描述，在下文中，主要描述一个AP与一个STA在多连接下进行通信的示例，然而，本公开的示例实施例不限于此。
在图1中，仅作为示例性的，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。参照图1，AP MLD可以工作在三个连接下，如图1所示的AP1、AP2和AP3，non-AP STA MLD也可以工作在三个连接下，如图1所示的STA1、STA2和STA3。在图1的示例中，假设AP1与STA1通过对应的第一连接Link 1进行通信，类似地，AP2和AP3分别通过第二连接Link 2和第三连接Link 3与STA2和STA3进行通信。此外，Link 1至Link 3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。然而，应该理解的是，图1所示的通信场景仅是示例性的，本发明构思不限于此，例如，AP MLD可以连接到多个non-AP STA MLD，或者在每个连接下，AP可以与多个其他类型的站点进行通信。
在省电(PS，power save)模式下，设备(例如，non-AP STA MLD及其附属的站点STA1、STA2和STA3)省电的方式为：将控制帧(control frame) 帧头的电源管理(Power Management)子域为“1”，并且在接收到对应方(例如，AP MLD及其附属的接入点AP1、AP2和AP3)的响应后进入省电模式。在多连接通信环境中，处于不同连接下的站点可以进入省电模式。在此情况下，当通过在一个连接上发送的多连接建立而对于作为non-AP STA MLD一部分的STA启用该连接时，紧接在信令交换之后，该STA的初始电源管理模式为激活模式；当通过在一连接上发送的信令(多连接建立或TID到连接映射更新)而对于作为non-AP STA MLD一部分的STA启用另一个连接时，紧接在该交换之后，该STA的初始电源管理模式为省电模式，其电源状态为睡眠。在启用的连接上运行的non-AP STA MLD的每个STA均应保持其自身的电源管理模式和电源状态，如所定义的电源管理)和目标唤醒时间(TWT)。当non-AP STA MLD的在启用的连接上运行的STA处于唤醒状态时，可以在该启用的连接上进行帧交换。
在多连接下，设备需支持多连接通信，例如，以同时发送和接收(STR)的方式或者非同时发送和接收(NSTR)的方式进行多连接通信。根据以上关于每个连接的省电模式的描述，在初始关联过程(例如，多连接建立：multi-link setup)中或通信标识到连接映射过程(即，TID-To-Link映射过程)中，如果一个连接(例如，图1中的Link1)被另一个连接(例如，图1中的Link3)中发送的信令激活，则在完成信令交互后，这个连接(例如，Link1)下的站点可以处于省电模式。随后，如果设备之间要进行STR或NSTR通信，则需要唤醒处于PS模式下的站点，但是现有技术中缺乏这种情况下的唤醒机制。
图2是示出根据示例实施例的多连接下的通信方法的流程图。图2所示的通信方法可以应用于发起方，例如，发起方可以是non-AP STA MLD或AP MLD。在发起方为non-AP STA MLD的情况下，对应的接收方可以是AP MLD；在发起方为AP MLD的情况下，对应的接收方可以是non-AP STA MLD。
参照图2，在步骤210中，可以确定第一消息帧。根据实施例，第一消息帧可以包括：多连接中的将要切换至唤醒状态以进行多连接通信的至少一个连接的信息。根据本公开的实施例，多连接可以是发起方和接收方之间建立的多个连接，至少一个连接可以是将要被唤醒以进行多连接通信的连接。第一消息帧可以被称为多连接通信的初始消息帧。在本公开的实施例中，通过定义这样的初始消息帧(第一消息帧)来唤醒处于PS模式下的站点，以进行多连接通信。
根据实施例，第一消息帧中包括的信息可以以信息元素(IE，information element)的形式被携带，并且可以包括电源管理标识、连接标识或时延标识中的至少一项。
仅作为示例性的，第一消息帧中包括的信息可以具有如下面的表1所示的格式。
表1.第一消息帧中包括的信息的格式
…… PM Link ID1 Delay 1 Link ID2 Delay 2 ……
可以理解的是表1所示的各个内容都是独立存在的，这些内容被示例性的列在同一张表格中，但是并不代表表格中的所有内容必须根据表格中所示的同时存在。因此本领域内技术人员可以理解，本公开表1中的每个内容都是一个独立的实施例。还将理解，表1所示的内容仅是示例性的，本公开不限于此，例如，表1还可以包括元素标识(Element ID)、长度(Length)等内容，或者可以从表1中省略一部分内容。
参照表1，第一消息帧中包括的信息可以包括电源管理标识(PM，Power Management)。根据实施例，在该电压管理标识被设置为第一值(例如但不限于“0”)的情况下，标识将要切换至唤醒状态。虽然在表1中仅示出了一个PM，但是根据本公开的实施例，可以包括更多个PM，例如，可以存在与Link ID1和Link ID2等分别对应的PM。
根据本公开的实施例，第一消息帧中包括的信息可以包括与将要切换至唤醒状态的至少一个连接相对应的连接标识，如表1中的Link ID1和Link ID2等。在一个实施例中，可以如表1所示，以各个单独的Link ID来表示连接标识，在此情况下，每个Link ID可以具有多个比特位，以标识工作频谱、带宽/信道以及BSSID(basis service set identifier)的组合信息。以单独的Link ID来表示连接标识能够采用简单的编解码方法来进行信息的携带。在另一实施例中，不同于表1所示，可以以连接组(Link set)的方式来表示连接标识，在此情况下，Link set可以具有多个比特位，每个比特位对应于发起方和接收方之间建立的多个连接，当相应的比特位被设置为特定值(例如但不限于“1”)时，该比特位所对应的连接可以被切换至唤醒状态。以Link set的方式来表示连接标识能够减小信息的比特数，从而减小通信中需要传输的数据量。
当表1中的“PM”被设置为第一值时，可以表示连接标识Link ID1和Link  ID2等所标识的连接将要切换至唤醒状态，换言之，与连接标识Link ID1和Link ID2等对应的设备(例如，站点STA)将要被唤醒以进行多连接通信。虽然在表1中同时示出了PM和连接标识Link ID1和Link ID2等，但是本公开不限于此，例如，当发起方与接收方之间建立的所有多个连接都需要被唤醒时，可以省略PM和连接标识中的一者，从而精简信令。
根据本公开的实施例，第一消息帧中包括的信息还可以包括时延标识，如表1中的Delay 1和Delay 2等。时延标识可以用于标识在至少一个连接下的设备切换至唤醒状态的延迟时间。例如，在表1中，Delay 1可以指Link ID1所对应的设备(例如，站点STA)从睡眠状态(doze state)切换至唤醒状态(awake state)的时延，或者可以指从睡眠状态切换至唤醒状态的最大时延。虽然在表1中示出了多个时延标识Delay 1和Delay 2等，但是如果将要切换至唤醒状态的连接下的设备的时延都相同时，可以仅包括一个时延标识，或者当需要立即切换至唤醒状态时，可以省略时延标识。
此外，时延Delay 1、Delay 2等也可以在多连接(ML，multi-link)信息元素中进行标识(即，与PM和Link ID1、Link ID2位于不同的信息元素中)，例如，时延Delay 1、Delay 2等可以为0us、8us等等。一般来说，每个连接下的时延的数值可以为相同的。
继续参照图2，在步骤220中，可以发送第一消息帧。例如，可以在多个连接中的任意连接下，从发起方向接收方发送第一消息帧，其中，该任意连接不是处于省电模式的连接。根据本公开的实施例，步骤220可以在多连接建立完成之后执行。换言之，在将要进行多连接通信之前执行步骤220。
将理解，图2所示的实施例仅是示例性的，本公开不限于此，例如，虽然未示出，但是，图2所示的通信方法还可以包括：在通过支持多连接通信的站点(即，non-AP STA MLD)发送第一消息帧的情况下，从支持多连接通信的接入点(即，AP MLD)接收第二消息帧，其中，第二消息帧可以包括：该接入点基于通信环境推荐的将要切换至唤醒状态的连接的信息。根据实施例，通信环境可以包括负载情况和/或接入时延，然而，本公开不限于此，例如，通信环境还可以包括：网络情况、发送/接收设备的硬件能力、业务类型、相关协议规定等。稍后将参照图3对此进行更详细的 描述。
图3是示出根据示例实施例的发起方与接收方之间的交互通信。在图3中，发起方可以是non-AP STA MLD，接收方可以是AP MLD。
参照图3，在S310中，可以在发起方non-AP STA MLD与接收方AP MLD之间进行多连接的建立。例如，可以通过如下方法建立多连接：发起方non-AP STA MLD可以向接收方AP MLD发送探测请求帧、关联请求帧或者重关联请求帧等，并且从接收方AP MLD接收反馈帧，例如，探测响应帧、关联响应帧或者重关联响应帧等。将理解，这仅是说明性，建立多连接的实施例不限于此。此外，S310也可以指示TID-to-Link映射过程。
之后，当需要进行多连接通信时，在S320中，发起方non-AP STA MLD可以确定第一消息帧，并且在S330中发送第一消息帧。如图2和表1中的实施例，第一消息帧可以携带电源管理标识、连接标识或时延标识中的至少一项，即，S320和S330可以类似于参照图2描述的步骤210和步骤220，为了简明，在此省略重复的描述。在发起方为non-AP STA MLD的情况下，为了进行多连接通信，non-AP STA MLD可以根据自身的通信条件来确定将要切换至唤醒状态的连接，并且将相关的信息发送至AP MLD。
在S340中，AP MLD在接收到第一消息帧后，通过解析可以获知non-AP STA MLD确定的将要被唤醒的连接的信息，并且可以据此判定是否可以接受这些连接。如果AP MLD例如根据其通信环境判定non-AP STA MLD确定的连接不可接受，则可以向non-AP STA MLD推荐将要被唤醒以用于多连接通信的连接，例如，在S350中发送第二消息帧。在此情况下，第二消息帧可以包括：接入点基于通信环境推荐的将要切换至唤醒状态的连接的信息。根据实施例，通信环境可以包括负载情况和/或接入时延，然而，本公开不限于此，例如，通信环境还可以包括：网络情况、发送/接收设备的硬件能力、业务类型、相关协议规定等。如果AP MLD例如根据其通信环境判定non-AP STA MLD确定的连接是可接受的，则可以省略S340和S350，而向non-AP STA MLD反馈确认消息帧，之后在S360中进行多连接通信。在本公开的实施例中，发起方和接收方可以通过S320至S350来协商将要被唤醒以用于多连接通信的连接，增加了系统的灵活性。
在S360中，当发起方和接收方协商好用于多连接通信的连接之后，可以在发起方和接收方进行多连接通信，例如，以STR或NSTR的方式在多个连接下执行信令交互或数据传输。
在S370中，当多连接通信完成之后，发起方可以向接收方发送第三消息帧，其中，第三消息帧可以包括处于唤醒状态的至少一个连接进入省电模式的信息。例如，第三消息帧可以携带被设置为第二值(例如但不限于“1”)的PM和/或连接标识，以标识相应的连接将进入省电模式。可选择地，第三消息帧可以携带时延标识，其标识相应的连接在经过一定的时延之后再进入省电模式，从而提高多连接通信的可靠性。
在S380中，发起方可以从接收方接收关于第三消息帧的确认消息帧。也就是说，在多连接通信完成之后，通过S370和S380，发起方可以告知接收方在S320或S340中标识的连接可以从唤醒状态进入睡眠状态，从而使得设备(站点)能够进入省电模式以节省电力。
图4是示出根据示例实施例的发起方与接收方之间的交互通信。在图3中，发起方可以是AP MLD，接收方可以是non-AP STA MLD。
参照图4，在S410中，可以在发起方AP MLD与接收方non-AP STA MLD之间进行多连接的建立。例如，可以通过如下方法建立多连接：发起方AP MLD可以向接收方non-AP STA MLD广播信标帧；接收方non-AP STA MLD接收到信标帧之后，可以向发起方AP MLD发送关联请求帧或重关联请求帧；发起方AP MLD可以反馈关联响应帧或重关联响应帧，从而完成多连接的建立。将理解，这仅是说明性，建立多连接的实施例不限于此。此外，S410也可以指示TID-to-Link映射过程。
之后，当需要进行多连接通信时，在S420中，发起方AP MLD可以确定第一消息帧，并且在S430中发送第一消息帧。如图2和表1中的实施例，第一消息帧可以携带电源管理标识、连接标识或时延标识中的至少一项。在S420中，当发起方AP MLD确定第一消息帧时，发起方AP MLD可以根据通信环境(例如，负载情况、接入时延、网络情况、发送/接收设备的硬件能力、业务类型、相关协议规定等)确定将要被唤醒以用于多连接通信的连接。S420中的第一消息帧可以类似于参照表1描述的格式，在此 省略重复的描述以避免冗余。
在S440中，发起方AP MLD可以从接收方non-AP STA MLD接收确认消息帧，即，发起方确认non-AP STA MLD已经知晓将要被唤醒的连接。随后可以在S450中进行多连接通信。
在S460中，当多连接通信完成之后，发起方AP MLD可以向接收方non-AP STA MLD，在S470中，发起方AP MLD可以从接收方non-AP STA MLD接收关于第三消息帧的确认消息帧，从而在多连接通信中的处于唤醒状态的至少一个连接可以进入省电模式。
虽然未在图4中示出，但是接收方non-AP STA MLD在通过S430获知发起方AP MLD确定的将要切换至唤醒状态的连接后，也可以根据其自身通信条件向发起方AP MLD推荐用于多连接通信的其他连接。
根据本公开的实施例的多连接下的通信方法可以定义多连接通信初始消息帧(例如，第一消息帧)，其发起方可以为non-AP STA MLD或AP MLD(不考虑会处于PS模式)。
具体地，在将要进行多连接通信的任一连接(包括初始关联(multi-link setup/TID-to-Link映射)连接)下发送初始消息帧(例如，第一消息帧)，其中，初始消息帧(例如，第一消息帧)的帧控制域的Power Management子域设置为例如“0”，标识连接切换至awake状态。另外，在初始消息帧(例如，第一消息帧)中还可以包含将要进行awake状态的连接标识。具体地，可以以IE的形式出现，例如，link ID+PM标识位，其中，link ID可以是多个(已在初始关联过程中激活的连接)。可选地，在初始消息帧(例如，第一消息帧)中，可以包含每个连接下的设备从doze状态切换至awake状态的时延，或需切换至awake状态的最大时延。
之后，初始消息帧(例如，第一消息帧)的接收方可以向发起方反馈关于初始消息帧的确认消息帧。例如，接收方可以反馈简单的确认帧给发起方。又例如，如果接收方为AP MLD，则接收方AP MLD可以根据需要唤醒的连接下的BSS负载情况、接入时延等因素，例如，在反馈的确认消息帧(例如，第二消息帧)中，推荐唤醒的连接给non-AP STA MLD。
在多连接通信完成后，发起方可以将最后一个帧的帧控制域的Power  Management子域设置为例如“1”，标识进入PS模式，接收方可以响应于最后一个帧反馈确认消息帧。
根据本公开的实施例的通信方法，可以减少多连接通信中的信令的交互，使得处于PS状态的站点能够进行多连接通信，提高频谱利用效率。
图5是示出根据示例实施例的多连接下的另一通信方法的流程图。图5所示的通信方法可以应用于接收方，例如，接收方可以是AP MLD或non-AP STA MLD。在执行图2所示的通信方法的发起方为non-AP STA MLD的情况下，执行图5的通信方法的接收方可以是AP MLD；在发起方为AP MLD的情况下，对应的接收方可以是non-AP STA MLD。
参照图5，在步骤510中，可以接收第一消息帧。根据实施例，第一消息帧包括：多连接中的将要切换至唤醒状态以进行多连接通信的至少一个连接的信息。具体地，根据实施例，所述信息可以包括：电源管理标识，其中，在电压管理标识被设置为第一值的情况下，标识将要切换至唤醒状态。根据实施例，所述信息可以包括：与至少一个连接相对应的连接标识。根据实施例，所述信息还可以包括：时延标识，其中，时延标识可以用于标识在至少一个连接下的设备切换至唤醒状态的延迟时间。即，如表1中的实施例，第一消息帧可以携带电源管理标识、连接标识或时延标识中的至少一项，为了简明在此省略重复的描述。
在步骤520中，可以基于第一消息帧执行通信操作。例如，可以如图4的S440所示，接收方向发起方反馈确认消息帧。又例如，可以如图3的S340和S350所示，在由支持多连接通信的接入点(接收方为AP MLD)接收到第一消息帧的情况下，向支持多连接通信的站点(发起方为non-AP STA MLD)发送第二消息帧，其中，第二消息帧可以包括：接入点基于通信环境(例如，负载情况和/或接入时延等)推荐的将要切换至唤醒状态的连接的信息。第二消息帧中携带的信息可以包括电源管理标识、连接标识或时延标识中的至少一项，即，可以类似于表1的格式，为了简明，在此省略重复的描述。
虽然在图5中未示出，但是图5所示的通信方法还可以包括：接收第三消息帧，其中，第三消息帧可以包括处于唤醒状态的至少连接进入省电模式的信息，即，图3和图4中的S370和S380。
将理解，图5所示的通信方法仅是示例性的，本公开不限于此，例如，图5所示的通信方法可以包括图3和图4中的由接收方执行的操作。
图6是示出根据示例实施例的多连接下的通信装置600的框图。参照图6，通信装置600可以包括处理模块610和收发模块620。
图6所示的通信装置可以应用于发起方或者接收方。例如，在发起方为non-AP STA MLD的情况下，对应的接收方可以是AP MLD；在发起方为AP MLD的情况下，对应的接收方可以是non-AP STA MLD。
在图6所示的通信装置可以应用于发起方的情况下，处理模块610可以被配置为：确定第一消息帧，其中，第一消息帧可以包括：多连接中的将要切换至唤醒状态以进行多连接通信的至少一个连接的信息；收发模块620可以被配置为：发送第一消息帧。即，在此情况下通信装置600可以执行参照图2所描述的通信方法以及图3和图4中的由发起方执行的操作，为了简明，在此省略重复的描述。
在图6所示的通信装置应用于接收方的情况下，收发模块620可以被配置为：接收第一消息帧，其中，第一消息帧可以包括：多连接中的将要切换至唤醒状态以进行多连接通信的至少一个连接的信息；处理模块610可以被配置为：基于第一消息帧控制通信操作的执行。即，在此情况下，通信装置600可以执行参照图5所描述的通信方法以及图3和图4中的由接收方执行的操作，为了简明，在此省略重复的描述。
此外，图6所示的通信装置600仅是示例性的，本公开的实施例不限于此，例如，通信装置600还可以包括其他模块，例如，存储器模块等。此外，通信装置600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能够减少信令的交互，使得处于PS状态的站点能够进行多连接通信，提高频谱利用效率。
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2至图5描述的操作。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2至图5描述的操作。
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 (18)

  1. 一种多连接下的通信方法，包括：
    确定第一消息帧，其中，所述第一消息帧包括：多连接中的将要切换至唤醒状态以进行多连接通信的至少一个连接的信息；
    发送所述第一消息帧。
  2. 根据权利要求1所述的通信方法，其中，所述信息包括：电源管理标识，
    其中，在所述电压管理标识被设置为第一值的情况下，标识将要切换至唤醒状态。
  3. 根据权利要求1或2所述的通信方法，其中，所述信息包括：与所述至少一个连接相对应的连接标识。
  4. 根据权利要求3所述的通信方法，其中，所述信息还包括：时延标识，
    其中，所述时延标识用于标识在所述至少一个连接下的设备切换至唤醒状态的延迟时间。
  5. 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：
    在通过支持多连接通信的站点发送所述第一消息帧的情况下，从支持多连接通信的接入点接收第二消息帧，
    其中，所述第二消息帧包括：所述接入点基于通信环境推荐的将要切换至唤醒状态的连接的信息。
  6. 根据权利要求5所述的通信方法，其中，所述通信环境包括负载情况和/或接入时延。
  7. 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：
    发送第三消息帧，其中，所述第三消息帧包括处于唤醒状态的至少一个连接进入省电模式的信息。
  8. 一种多连接下的通信方法，包括：
    接收第一消息帧，其中，所述第一消息帧包括：多连接中的将要切换至唤醒状态以进行多连接通信的至少一个连接的信息；
    基于所述第一消息帧执行通信操作。
  9. 根据权利要求8所述的通信方法，其中，所述信息包括：电源管理标识，
    其中，在所述电压管理标识被设置为第一值的情况下，标识将要切换至唤醒状态。
  10. 根据权利要求8或9所述的通信方法，其中，所述信息包括：与所述至少一个连接相对应的连接标识。
  11. 根据权利要求10所述的通信方法，其中，所述信息还包括：时延标识，
    其中，所述时延标识用于标识在所述至少一个连接下的设备切换至唤醒状态的延迟时间。
  12. 根据权利要求8所述的通信方法，其中，所述通信方法还包括：
    在由支持多连接通信的接入点接收到所述第一消息帧的情况下，向支持多连接通信的站点发送第二消息帧，
    其中，所述第二消息帧包括：所述接入点基于通信环境推荐的将要切换至唤醒状态的连接的信息。
  13. 根据权利要求12所述的通信方法，其中，所述通信环境包括负 载情况和/或接入时延。
  14. 根据权利要求8所述的通信方法，其中，所述通信方法还包括：
    接收第三消息帧，其中，所述第三消息帧包括处于唤醒状态的至少连接进入省电模式的信息。
  15. 一种多连接下的通信装置，包括：
    处理模块，被配置为：确定第一消息帧，其中，所述第一消息帧包括：多连接中的将要切换至唤醒状态以进行多连接通信的至少一个连接的信息；
    收发模块，被配置为：发送所述第一消息帧。
  16. 一种多连接下的通信装置，包括：
    收发模块，被配置为：接收第一消息帧，其中，所述第一消息帧包括：多连接中的将要切换至唤醒状态以进行多连接通信的至少一个连接的信息；
    处理模块，被配置为：基于所述第一消息帧控制通信操作的执行。
  17. 一种电子装置，包括存储器、处理器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7中的任一项或者权利要求8至14中的任一项所述的方法。
  18. 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7中的任一项或者权利要求8至14中的任一项所述的方法。
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