WO2023056652A1 - 通信连接控制方法及装置、电子设备及存储介质 - Google Patents

通信连接控制方法及装置、电子设备及存储介质 Download PDF

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Publication number
WO2023056652A1
WO2023056652A1 PCT/CN2021/122928 CN2021122928W WO2023056652A1 WO 2023056652 A1 WO2023056652 A1 WO 2023056652A1 CN 2021122928 W CN2021122928 W CN 2021122928W WO 2023056652 A1 WO2023056652 A1 WO 2023056652A1
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Prior art keywords
communication connection
connection
contention window
working mode
random backoff
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PCT/CN2021/122928
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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 CN202180003117.3A priority Critical patent/CN116569647A/zh
Priority to PCT/CN2021/122928 priority patent/WO2023056652A1/zh
Publication of WO2023056652A1 publication Critical patent/WO2023056652A1/zh

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    • 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

  • Embodiments of the present disclosure relate to the technical field of mobile communications, and specifically, embodiments of the present disclosure relate to a method and device for controlling a communication connection, an electronic device, and a storage medium.
  • Wi-Fi Wireless Fidelity
  • the research content of Wi-Fi technology such as 320MHz bandwidth transmission, aggregation and coordination of multiple frequency bands, etc., its main application scenarios such as video transmission, augmented reality (Augmented Reality, AR), virtual reality (Virtual Reality, VR )wait.
  • augmented reality Augmented Reality, AR
  • virtual reality Virtual Reality, VR
  • the aggregation and coordination of multiple frequency bands refers to the simultaneous communication between devices in 2.4GHz, 5.8GHz, 6GHz and other frequency bands.
  • MAC Media Access Control
  • the aggregation and coordination of multiple frequency bands is expected to support low-latency transmission.
  • the multi-band aggregation and coordination technology will support a maximum bandwidth of 320MHz (160MHz+160MHz). In addition, it may also support 240MHz (160MHz+80MHz) and other bandwidths supported by existing standards.
  • a basic service set (Basic Service Set, BSS) may be composed of an AP and one or more stations (Station, STA) communicating with the AP.
  • the AP and the STA can be multi-link devices (Multi-Link Device, MLD) respectively, and the MLD supports the function of simultaneously sending and/or receiving under multiple connections at the same time. Therefore, there may be multiple connections between the AP MLD and the STA MLD for communication.
  • BSS Basic Service Set
  • MLD Multi-Link Device
  • NSTR Nonsimultaneous Transmit And Receive
  • STR Simultaneous Transmit And Receive
  • a random backoff (Backoff) mechanism is further introduced. Therefore, it is necessary to provide a way to perform random backoff in a multi-connection scenario.
  • Embodiments of the present disclosure provide a communication connection control method and device, electronic equipment, and a storage medium, so as to provide a manner of performing random backoff in a multi-connection scenario.
  • an embodiment of the present disclosure provides a method for controlling a communication connection, which is applied to a non-AP MLD supporting multiple connections, and the method includes:
  • the first communication connection When the first communication connection performs a random backoff operation, determine the second communication connection and the working mode information of the first communication connection; the second communication connection is a communication connection in an idle state;
  • the working mode forms non-simultaneous sending and receiving NSTR communication connections.
  • an embodiment of the present disclosure also provides a site device, the site device is a site device Non-AP MLD supporting multiple connections, and the site device includes:
  • a determining module configured to determine the working mode information of the second communication connection and the first communication connection when the first communication connection performs a random backoff operation; the second communication connection is a communication connection in an idle state;
  • a processing module configured to perform a target processing operation on the contention window corresponding to the random backoff operation, and send data in the second communication connection; wherein, the working mode information indicates that there is a connection between the second communication connection and the The mode of operation of the first communication connection forms a non-simultaneous sending and receiving NSTR communication connection.
  • an embodiment of the present disclosure also provides a communication connection control device, which is applied to a site device Non-AP MLD supporting multiple connections, and the device includes:
  • An information determination module configured to determine the working mode information of the second communication connection and the first communication connection when the first communication connection performs a random backoff operation; the second communication connection is a communication connection in an idle state;
  • a connection processing module configured to perform a target processing operation on the contention window corresponding to the random backoff operation, and send data in the second communication connection; wherein, the working mode information indicates that there is a connection between the second communication connection and the The working mode of the first communication connection forms a non-simultaneous sending and receiving NSTR communication connection.
  • An embodiment of the present disclosure also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and operable on the processor. described method.
  • 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, one or more of the methods described in the embodiments of the present disclosure are implemented. .
  • the embodiment of the present disclosure when the first communication connection performs a random backoff operation, and there is a second communication connection in an idle state that supports NSTR, the target processing operation is performed on the contention window corresponding to the random backoff operation, and the Continue to send data in the second communication connection; the embodiment of the present disclosure provides a method of performing random backoff in a multi-connection scenario.
  • FIG. 1 is one of the flow charts of a method for controlling a communication connection provided by an embodiment of the present disclosure
  • FIG. 2 is a schematic diagram of a first example of an embodiment of the present disclosure
  • FIG. 3 is the second flowchart of the method for controlling a communication connection provided by an embodiment of the present disclosure
  • FIG. 4 is a schematic structural diagram of a communication connection control device provided by an embodiment of the present disclosure.
  • FIG. 5 is a schematic structural diagram of an electronic device provided by an embodiment of the present disclosure.
  • first, second, third, etc. may be used in the present disclosure to describe various information, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another.
  • first information may also be called second information, and similarly, second information may also be called first information.
  • word “if” as used herein could be interpreted as “at” or “when” or "in response to a determination.”
  • Embodiments of the present disclosure provide a communication connection control method and device, electronic equipment, and a storage medium, so as to provide a manner of performing random backoff in a multi-connection scenario.
  • the method and the device are conceived based on the same application. Since the principle of solving problems of the method and the device is similar, the implementation of the device and the method can be referred to each other, and the repetition will not be repeated.
  • an embodiment of the present disclosure provides a communication connection control method.
  • the method can be applied to a non-AP MLD supporting multiple connections, and the method may include the following steps:
  • Step 101 when the first communication connection performs a random backoff operation, determine a second communication connection and working mode information of the first communication connection; the second communication connection is a communication connection in an idle state.
  • the AP and the STA may be devices supporting multiple connections, for example, may be represented as AP MLD and Non-AP MLD respectively.
  • AP MLD AP MLD
  • Non-AP MLD Non-AP MLD
  • an AP MLD may represent an access point supporting a multi-connection communication function
  • a Non-AP MLD may represent a station supporting a multi-connection communication function.
  • AP MLD can work under three communication connections (Link), such as AP1, AP2 and AP3 shown in Figure 2, each AP can work on (communication) connection 1, connection 2 and connection 3 respectively;
  • Non - AP MLD can also work under three connections, as shown in Figure 2, STA1, STA2 and STA3, STA1 works on connection 1, STA2 works on connection 2, and STA3 works on connection 3.
  • 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. Additionally, multiple channels can exist under each connection. It can be understood that the communication scenario shown in FIG. 2 is only exemplary, and the disclosed concept is not limited thereto.
  • the AP MLD can be connected to multiple Non-AP MLDs, or under each connection, the AP can communicate with multiple Non-AP MLDs. other types of sites to communicate with.
  • connection or Link In the wireless communication process, before the Non-AP MLD transmits data, it will check whether each communication connection (hereinafter referred to as connection or Link) is in an idle state. If the connection is busy, the Non-AP MLD will delay the access and use the Exponential Backoff algorithm to avoid conflicts, and wait until the connection is idle again, thus forming the access delay, which is the random backoff process.
  • the working mode information includes STR or NSTR
  • the second communication connection in the idle state may include one or more, that is, the first communication connection and the second communication connection may form a STR link pair or an NSTR link pair; support STR
  • a device that supports NSTR can simultaneously perform uplink and downlink communications under multiple communication connections; while a device that supports NSTR performs uplink communication under one connection, it cannot simultaneously perform downlink communication under another connection.
  • the random backoff is independent under each communication connection. If the device perceives that the channel is idle under the second communication connection and the channel is busy (that is, occupied state) under the first communication connection, it needs to perform random backoff.
  • the first communication connection and the second communication connection are NSTR link pairs.
  • the first communication connection and the second communication connection can send data independently according to the working mode of the STR.
  • Step 102 execute the target processing operation on the contention window corresponding to the random backoff operation, and send data in the second communication connection; wherein, the working mode information indicates that there is a connection between the second communication connection and the first communication connection.
  • the working mode of the communication connection forms a non-simultaneous sending and receiving NSTR communication connection.
  • the Non-AP MLD will try to transmit the previously congested frame data .
  • the period of time after DIFS is the competition window Contention Window (or backoff window Backoff Window).
  • the competition window can be further divided into time slots (Slots). A number is randomly selected in a competition window to start counting down, and then each Slot is monitored once. channel, if there are other connection transmissions, the current countdown will be frozen, and the countdown will continue when the channel is idle, and the node will be allowed to perform data transmission when the countdown reaches 0.
  • the actual transmission time of some nodes to be transmitted can be staggered on the time axis to reduce the probability of conflicts.
  • the first communication connection performs random backoff, and there is at least one second communication connection forming an NSTR link pair with the first communication connection, then send data in the second communication connection, and perform the target processing operation on the contention window ;
  • Target processing operations such as releasing the contention window or maintaining the contention window.
  • the contention window for performing random backoff of the first communication connection is released to avoid power consumption caused by non-AP MLD due to random backoff. Therefore, in the embodiments of the present disclosure, in such a scenario, the contention window generated when the first communication connection performs random backoff is released, so that random backoff is disabled, saving power of the device.
  • releasing the contention window for example, sets the reciprocal value in the contention window to 0.
  • the contention window is before the second communication connection completes data transmission, The countdown of the contention window has not been completed yet, and it is still necessary to sense the channel state and wait for an opportunity to send the data of the first communication connection at this time, therefore, the contention window is maintained at this time.
  • the embodiment of the present disclosure when the first communication connection performs a random backoff operation, and there is a second communication connection in an idle state that supports NSTR, the target processing operation is performed on the contention window corresponding to the random backoff operation, and the Continue to send data in the second communication connection; the embodiment of the present disclosure provides a method of performing random backoff in a multi-connection scenario.
  • the method includes:
  • Determining that the first communication connection performs a random backoff operation includes:
  • a channel clear assessment operation (Channel Clear Assessment, CCA) is performed under each communication connection, and whether each communication connection is in an idle state is determined according to the result of the channel clear assessment operation. If the first communication connection is in a busy state and the second communication connection is in an idle state, in order to avoid contention conflicts, the second communication connection is allowed to continue to transmit data at this time, and random backoff is performed in the first communication connection , generate the competition window, and randomly select a number in a competition window to start counting down, then each Slot monitors the channel once, if there are other connection transmissions, freeze the current countdown, and continue counting down when the channel is idle.
  • CCA Channel Clear Assessment
  • the working modes of other second communication connections are acquired to determine subsequent processing operations performed on the contention window.
  • the performing the target processing operation on the contention window corresponding to the random backoff operation includes:
  • the contention window is released.
  • the contention window has been counted down, It is meaningless to maintain the contention window. Therefore, data should continue to be sent in the second communication connection at this time, and the contention window for performing random backoff in the first communication connection should be released, so as to avoid the non-AP MLD from causing power loss due to random backoff. consume.
  • the performing the target processing operation on the contention window corresponding to the random backoff operation includes:
  • the contention window is kept.
  • the contention window is not completed before the second communication connection completes the data transmission, and at this time It is still necessary to sense the channel state and wait for an opportunity to send the data of the first communication connection, therefore, the contention window is maintained at this time.
  • the embodiment of the present disclosure provides a communication connection control method.
  • the method can be applied to a non-AP MLD supporting multiple connections.
  • the method may include the following steps:
  • Step 301 when the first communication connection performs a random backoff operation, determine the working mode information of the second communication connection and the first communication connection according to the multi-connection ML information element; the second communication connection is in an idle state communication connection.
  • the Non-AP MLD will try to transmit the previously congested frame data.
  • the period of time after DIFS is the competition window Contention Window (or backoff window Backoff Window).
  • the competition window can be further divided into time slots (Slots). A number is randomly selected in a competition window to start counting down, and then each Slot is monitored once. channel, if there are other connection transmissions, the current countdown will be frozen, and the countdown will continue when the channel is idle, and the node will be allowed to perform data transmission when the countdown reaches 0.
  • the actual transmission time of some nodes to be transmitted can be staggered on the time axis to reduce the probability of conflicts.
  • the multi-link (Multi-Link, ML) information Element types include Multi-Link Control information, site configuration per-STA profile information, link information Link info, and public information Common Info, etc.
  • the working mode information includes STR or NSTR, that is, the first communication connection and the second communication connection form a STR link pair or an NSTR link pair; devices supporting STR can simultaneously perform uplink communication and downlink communication under multiple communication connections; and support When an NSTR device performs uplink communication under one connection, it cannot perform downlink communication under another connection at the same time.
  • the random backoff is independent under each communication connection. If the device perceives that the channel is idle under the second communication connection and the channel is busy (that is, occupied state) under the first communication connection, it needs to perform random backoff.
  • the first communication connection and the second communication connection are NSTR link pairs.
  • Step 302 Execute a target processing operation on the contention window corresponding to the random backoff operation, and send data in the second communication connection; wherein, the working mode information indicates that there is a connection between the second communication connection and the first communication connection.
  • the working mode of the communication connection forms a non-simultaneous sending and receiving NSTR communication connection.
  • Target processing operations such as releasing the contention window or maintaining the contention window.
  • the determining the working mode information of the second communication connection and the first communication connection according to the multi-connection ML information element includes:
  • the working mode includes the NSTR communication connection and the synchronous sending and receiving STR communication connection.
  • Non-AP MLD can carry the STR frequency interval information between each connection during the initial association process (multi-connection establishment process). For example, the minimum unit of interval is 20MHz, and the maximum number of simultaneous connections (interval number) is 6. If the Non-AP MLD judges that the STR frequency interval information and the maximum number of simultaneous connections cannot be satisfied according to the respective operating frequencies of the first communication connection and the second communication connection, the working mode of the first communication connection and the second communication connection can be determined For the NSTR communication connection, an NSTR link pair is formed with the first communication connection.
  • the maximum number of simultaneous connections information and the STR frequency interval information are carried in the Common Info field of the ML information element.
  • the ML information element is carried in a target radio frame
  • the target wireless frame includes at least one of a ML Probe Request frame, an Association Request frame, and a Reassociation Request frame. It can be understood that, in addition, the target wireless frame may also include other form, which is not specifically limited in the embodiments of the present disclosure.
  • the embodiment of the present disclosure when the first communication connection performs a random backoff operation, and there is a second communication connection in an idle state that supports NSTR, the target processing operation is performed on the contention window corresponding to the random backoff operation, and the Continue to send data in the second communication connection; the embodiment of the present disclosure provides a method of performing random backoff in a multi-connection scenario.
  • the embodiments of the present disclosure also provide a station device, which can be a device that provides voice and/or data connectivity to users, a handheld device with a wireless connection function devices, or other processing devices connected to wireless modems, etc.
  • an embodiment of the present disclosure provides a site device, the site device is a site device Non-AP MLD supporting multiple connections, and the site device includes:
  • the determining module 401 is configured to determine a second communication connection and working mode information of the first communication connection when the first communication connection performs a random backoff operation; the second communication connection is a communication connection in an idle state.
  • the AP and the STA may be devices supporting multiple connections, for example, may be represented as AP MLD and Non-AP MLD respectively.
  • AP MLD AP MLD
  • Non-AP MLD Non-AP MLD
  • an AP MLD may represent an access point supporting a multi-connection communication function
  • a Non-AP MLD may represent a station supporting a multi-connection communication function.
  • AP MLD can work under three communication connections (Link), such as AP1, AP2 and AP3 shown in Figure 2, each AP can work on (communication) connection 1, connection 2 and connection 3 respectively;
  • Non - AP MLD can also work under three connections, as shown in Figure 2, STA1, STA2 and STA3, STA1 works on connection 1, STA2 works on connection 2, and STA3 works on connection 3.
  • 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. Additionally, multiple channels can exist under each connection. It can be understood that the communication scenario shown in FIG. 2 is only exemplary, and the disclosed concept is not limited thereto.
  • the AP MLD can be connected to multiple Non-AP MLDs, or under each connection, the AP can communicate with multiple Non-AP MLDs. other types of sites to communicate with.
  • connection or Link each communication connection (hereinafter referred to as connection or Link) is in an idle state. If the connection is busy, the Non-AP MLD will delay the access and use the Exponential Backoff algorithm to avoid conflicts, and wait until the connection becomes idle again, thereby forming a delay in access. This process is a random backoff process.
  • the working mode information includes STR or NSTR; devices supporting STR can perform uplink communication and downlink communication under multiple communication connections at the same time; while NSTR devices can perform uplink communication under one connection, they cannot perform downlink communication under another connection at the same time .
  • the random backoff is independent under each communication connection. If the device perceives that the channel is idle under the second communication connection and the channel is busy (that is, occupied state) under the first communication connection, it needs to perform random backoff.
  • the first communication connection and the second communication connection are NSTR link pairs.
  • a processing module 402 configured to execute a target processing operation on the contention window corresponding to the random backoff operation, and send data in the second communication connection; wherein, the working mode information indicates that the second communication connection and the second communication connection exist
  • the working mode of the first communication connection forms a non-simultaneous sending and receiving NSTR communication connection.
  • the Non-AP MLD will try to transmit the previously congested frame data .
  • the period of time after DIFS is the competition window Contention Window (or backoff window Backoff Window).
  • the competition window can be further divided into time slots (Slots). A number is randomly selected in a competition window to start counting down, and then each Slot is monitored once. channel, if there are other connection transmissions, the current countdown will be frozen, and the countdown will continue when the channel is idle, and the node will be allowed to perform data transmission when the countdown reaches 0.
  • the actual transmission time of some nodes to be transmitted can be staggered on the time axis to reduce the probability of conflicts.
  • the first communication connection performs random backoff, and the second communication connection supports NSTR, then send data in the second communication connection, and perform a target processing operation on the contention window; the target processing operation is for example releasing the contention window or The contention window is maintained.
  • the contention window for performing random backoff of the first communication connection is released to avoid power consumption caused by non-AP MLD due to random backoff. Therefore, in the embodiments of the present disclosure, in such a scenario, the contention window generated when the first communication connection performs random backoff is released, so that random backoff is disabled, saving power of the device.
  • releasing the contention window for example, sets the reciprocal value in the contention window to 0.
  • the contention window is before the second communication connection completes data transmission, The countdown of the contention window has not been completed yet, and it is still necessary to sense the channel state and wait for an opportunity to send the data of the first communication connection at this time, therefore, the contention window is maintained at this time.
  • the site device includes:
  • An operation determining module configured to determine that the first communication connection performs a random backoff operation.
  • the operation determination module includes:
  • the perception submodule is used to perform a channel idle assessment operation on the communication connection of the Non-AP MLD;
  • a first determining submodule configured to determine that the first communication connection is executing the first communication connection when it is determined that the first communication connection is in a busy state and the second communication connection is in an idle state according to the result of the channel idle evaluation operation.
  • the random backoff operation is performed, and the contention window is generated.
  • the processing module 402 includes:
  • the release submodule is configured to release the contention window when the time length of the data packet sent by the second communication connection is greater than or equal to the time length of the contention window.
  • the processing module 402 includes:
  • the maintaining submodule is configured to maintain the contention window when the time length of the data packet sent by the second communication connection is less than the time length of the contention window.
  • the determining module includes:
  • the second determining submodule is used to determine the working mode information of the second communication connection and the first communication connection according to the multi-connection ML information element.
  • the second determining submodule includes:
  • An acquisition unit configured to acquire information on the maximum number of simultaneous connections of the ML information element and frequency interval information on synchronously sending and receiving STRs;
  • a determining unit configured to determine the working mode information of the second communication connection and the first communication connection according to the maximum simultaneous connection number information and the STR frequency interval information; the working mode information indicates that the second communication connection and the The working mode of the first communication connection includes the NSTR communication connection and the synchronous sending and receiving STR communication connection.
  • the maximum number of simultaneous connections information and the STR frequency interval information are carried in the Common Info field of the ML information element.
  • the ML information element is carried in the target radio frame
  • the target wireless frame includes at least one of an ML Probe Request frame, an Association Request frame and a Reassociation Request frame.
  • the processing module 402 executes the target on the contention window corresponding to the random backoff operation Processing operations, and continuing to send data in the second communication connection; the embodiment of the present disclosure provides a manner of performing random backoff in a multi-connection scenario.
  • An embodiment of the present disclosure also provides a communication connection control device, which is applied to a site device Non-AP MLD supporting multiple connections, and the device includes:
  • An information determination module configured to determine the working mode information of the second communication connection and the first communication connection when the first communication connection performs a random backoff operation; the second communication connection is a communication connection in an idle state;
  • a connection processing module configured to perform a target processing operation on the contention window corresponding to the random backoff operation, and send data in the second communication connection; wherein, the working mode information indicates that there is a connection between the second communication connection and the The working mode of the first communication connection forms a non-simultaneous sending and receiving NSTR communication connection.
  • the apparatus also includes other modules of the site equipment in the foregoing embodiments, which will not be described in detail here.
  • an embodiment of the present disclosure further provides an electronic device, as shown in FIG. 5
  • the electronic device 5000 shown in FIG. 5 may be a server, and includes: a processor 5001 and a memory 5003 .
  • the processor 5001 is connected to the memory 5003 , such as through a bus 5002 .
  • the electronic device 5000 may further include a transceiver 5004 . It should be noted that, in practical applications, the transceiver 5004 is not limited to one, and the structure of the electronic device 5000 does not limit the embodiment of the present disclosure.
  • Processor 5001 can be CPU (Central Processing Unit, central processing unit), general purpose processor, 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. It may implement or execute the various illustrative logical blocks, modules and circuits described in connection with the present disclosure.
  • the processor 5001 may also be a combination that implements computing functions, for example, a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.
  • Bus 5002 may include a path for communicating information between the components described above.
  • the bus 5002 may be a PCI (Peripheral Component Interconnect, Peripheral Component Interconnect Standard) bus or an EISA (Extended Industry Standard Architecture, Extended Industry Standard Architecture) bus, etc.
  • the bus 5002 can be divided into address bus, data bus, control bus and so on. For ease of representation, only one thick line is used in FIG. 5 , but it does not mean that there is only one bus or one type of bus.
  • Memory 5003 can be ROM (Read Only Memory, read-only memory) or other types of static storage devices that can store static information and instructions, RAM (Random Access Memory, random access memory) or other types of memory that can store information and instructions Dynamic storage devices can also be EEPROM (Electrically Erasable Programmable Read Only Memory, Electrically Erasable Programmable Read Only Memory), CD-ROM (Compact Disc Read Only Memory, CD-ROM) or other optical disc storage, optical disc storage (including compressed optical disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), magnetic disk storage medium or other magnetic storage device, or a computer that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer Any other medium, but not limited to it.
  • EEPROM Electrically Erasable Programmable Read Only Memory
  • CD-ROM Compact Disc Read Only Memory
  • CD-ROM Compact Disc Read Only Memory
  • optical disc storage including compressed optical disc, laser disc, optical disc, digital versatile disc, blu
  • the memory 5003 is used to store application program codes for implementing the solutions of the present disclosure, and the execution is controlled by the processor 5001 .
  • the processor 5001 is configured to execute the application program codes stored in the memory 5003, so as to implement the contents shown in the foregoing method embodiments.
  • electronic devices include but are not limited to: mobile phones, notebook computers, digital broadcast receivers, PDA (personal digital assistants), PAD (tablet computers), PMP (portable multimedia players), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), etc.
  • Mobile terminals such as digital TVs, desktop computers, etc. and fixed terminals.
  • the electronic device shown in FIG. 8 is only an example, and should not limit the functions and scope of use of the embodiments of the present disclosure.
  • the server provided in this disclosure may be an independent physical server, or a server cluster or distributed system composed of multiple physical servers, or provide cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, Cloud servers for basic cloud computing services such as cloud communications, middleware services, domain name services, security services, CDN, and big data and artificial intelligence platforms.
  • the terminal may be a smart phone, a tablet computer, a laptop computer, a desktop computer, a smart speaker, a smart watch, etc., but is not limited thereto.
  • the terminal and the server may be connected directly or indirectly through wired or wireless communication, which is not limited in the present disclosure.
  • Embodiments of the present disclosure provide a computer-readable storage medium, on which a computer program is stored, and when the computer program is run on a computer, the computer can execute the corresponding content in the foregoing method embodiments.
  • the above-mentioned computer-readable medium in the present disclosure may be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two.
  • a computer readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to, electrical connections with one or more wires, portable computer diskettes, hard disks, random access memory (RAM), read-only memory (ROM), erasable Programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination of the above.
  • a computer-readable storage medium may be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.
  • a computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave carrying computer-readable program code therein. Such propagated data signals may take many forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the foregoing.
  • the computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium, and the computer-readable signal medium may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device .
  • Program code embodied on a computer readable medium may be transmitted by any appropriate medium, including but not limited to: wires, optical cables, RF (radio frequency), etc., or any suitable combination of the above.
  • the above-mentioned computer-readable medium may be included in the above-mentioned electronic device, or may exist independently without being incorporated into the electronic device.
  • the above-mentioned computer-readable medium carries one or more programs, and when the above-mentioned one or more programs are executed by the electronic device, the electronic device is made to execute the methods shown in the above-mentioned embodiments.
  • a computer program product or computer program comprising computer instructions stored in a computer readable storage medium.
  • the processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device executes the communication connection control method provided in the various optional implementation manners above.
  • Computer program code for carrying out the operations of the present disclosure can be written in one or more programming languages, or combinations thereof, including object-oriented programming languages—such as Java, Smalltalk, C++, and conventional Procedural Programming Language - such as "C" or a similar programming language.
  • the program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server.
  • the remote computer can be connected to the user computer through any kind of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computer (such as through an Internet service provider). Internet connection).
  • LAN local area network
  • WAN wide area network
  • Internet service provider such as AT&T, MCI, Sprint, EarthLink, MSN, GTE, etc.
  • each block in a flowchart or block diagram may represent a module, program segment, or portion of code that contains one or more logical functions for implementing specified executable instructions.
  • the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved.
  • each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations can be implemented by a dedicated hardware-based system that performs the specified functions or operations , or may be implemented by a combination of dedicated hardware and computer instructions.
  • the modules involved in the embodiments described in the present disclosure may be implemented by software or by hardware. Wherein, the name of the module does not constitute a limitation of the module itself under certain circumstances, for example, the A module may also be described as "the A module for performing the B operation".

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Abstract

本公开实施例涉及移动通信技术领域，提供了一种通信连接控制方法及装置、电子设备及存储介质，所述通信连接控制方法包括：在第一通信连接执行随机退避操作的情况下，确定第二通信连接与所述第一通信连接的工作模式信息；所述第二通信连接为处于空闲状态的通信连接；对所述随机退避操作对应的竞争窗口执行目标处理操作，并在所述第二通信连接中发送数据；其中，所述工作模式信息指示存在所述第二通信连接与所述第一通信连接的工作模式形成非同时发送和接收NSTR通信连接。本公开实施例提供了一种在多连接场景下，执行随机退避的方式。

Description

通信连接控制方法及装置、电子设备及存储介质 技术领域
本公开实施例涉及移动通信技术领域，具体而言，本公开实施例涉及一种通信连接控制方法及装置、电子设备及存储介质。
背景技术
随着移动通信技术的迅速发展，无线保真(Wireless Fidelity，Wi-Fi)技术在传输速率以及吞吐量等方面已经取得了巨大的进步。目前，Wi-Fi技术所研究的内容例如320MHz的带宽传输、多个频段的聚合及协同等，其主要的应用场景例如视频传输、增强现实(Augmented Reality，AR)、虚拟现实(Virtual Reality，VR)等。
具体地，多个频段的聚合及协同是指设备之间同时在2.4GHz、5.8GHz、6GHz及其他频段下进行通信，对于设备之间同时在多个频段下通信的场景，还需要定义新的介质访问控制(Media Access Control，MAC)机制来进行管理。此外，多频段的聚合及协同有望能够支持低时延传输。
目前，多频段的聚合及协同技术中，将支持的最大带宽为320MHz(160MHz+160MHz)，此外，还可能会支持240MHz(160MHz+80MHz)及现有标准支持的其它带宽。
在目前所研究的Wi-Fi技术中，会支持多连接通信。例如，在无线局域网中，一个基本服务集(Basic Service Set，BSS)可以由AP以及与AP通信的一个或多个站点(Station，STA)构成。AP和STA可以分别是多连接设备(Multi-Link Device，MLD)，MLD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，AP MLD与STA MLD之间可以存在多个连接进行通信。
此外，为了提高频谱利用率及适应高密集通信环境，引入了非同时发 送和接收(Nonsimultaneous Transmit And Receive，NSTR)以及同时发送和接收(Simultaneous Transmit And Receive，STR)机制。为了实现NSTR以及STR，进一步引入随机退避(Backoff)机制。因此，需要提供一种在多连接场景下，执行随机退避的方式，
发明内容
本公开实施例提供了一种通信连接控制方法及装置、电子设备及存储介质，以提供一种在多连接场景下，执行随机退避的方式。
一方面，本公开实施例提供了一种通信连接控制方法，应用于支持多连接的站点设备Non-AP MLD，所述方法包括：
在第一通信连接执行随机退避操作的情况下，确定第二通信连接与所述第一通信连接的工作模式信息；所述第二通信连接为处于空闲状态的通信连接；
对所述随机退避操作对应的竞争窗口执行目标处理操作，并在所述第二通信连接中发送数据；其中，所述工作模式信息指示存在所述第二通信连接与所述第一通信连接的工作模式形成非同时发送和接收NSTR通信连接。
另一方面，本公开实施例还提供了一种站点设备，所述站点设备为支持多连接的站点设备Non-AP MLD，所述站点设备包括：
确定模块，用于在第一通信连接执行随机退避操作的情况下，确定第二通信连接与所述第一通信连接的工作模式信息；所述第二通信连接为处于空闲状态的通信连接；
处理模块，用于对所述随机退避操作对应的竞争窗口执行目标处理操作，并在所述第二通信连接中发送数据；其中，所述工作模式信息指示存在所述第二通信连接与所述第一通信连接的工作模式形成非同时发送和接收NSTR通信连接。
另一方面，本公开实施例还提供了一种通信连接控制装置，应用于支持多连接的站点设备Non-AP MLD，所述装置包括：
信息确定模块，用于在第一通信连接执行随机退避操作的情况下，确定第二通信连接与所述第一通信连接的工作模式信息；所述第二通信连接为处于空闲状态的通信连接；
连接处理模块，用于对所述随机退避操作对应的竞争窗口执行目标处理操作，并在所述第二通信连接中发送数据；其中，所述工作模式信息指示存在所述第二通信连接与所述第一通信连接的工作模式形成非同时发送和接收NSTR通信连接。
本公开实施例还提供了一种电子设备，包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，处理器执行程序时实现如本公开实施例中一个或多个所述的方法。
本公开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，该计算机程序被处理器执行时实现如本公开实施例中一个或多个所述的方法。
本公开实施例中，在第一通信连接执行随机退避操作，且存在处于空闲状态的第二通信连接支持NSTR的情况下，对所述随机退避操作对应的竞争窗口执行目标处理操作，并在所述第二通信连接中继续发送数据；本公开实施例提供了一种在多连接场景下，执行随机退避的方式。
本公开实施例附加的方面和优点将在下面的描述中部分给出，这些将从下面的描述中变得明显，或通过本公开的实践了解到。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对本公开实施例的描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附 图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本公开实施例提供的通信连接控制方法的流程图之一；
图2为本公开实施例的第一示例的示意图；
图3为本公开实施例提供的通信连接控制方法的流程图之二；
图4为本公开实施例提供的一种通信连接控制装置的结构示意图；
图5为本公开实施例提供的一种电子设备的结构示意图。
具体实施方式
本公开实施例中术语“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
本公开实施例中术语“多个”是指两个或两个以上，其它量词与之类似。
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本发明相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本发明的一些方面相一致的装置和方法的例子。
在本公开使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本公开。在本公开和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也是旨在包括多数形式，除非上下文清楚地表示其他含义。还应当理解，本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。
应当理解，尽管在本公开可能采用术语第一、第二、第三等来描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开。例如，在不脱离本公开范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。取决于语境，例如，在此所使用的词语“如果”可以被解释成为“在……时”或“当……时”或“响应于确定”。
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进 行清楚、完整地描述，显然，所描述的实施例仅仅是本公开一部分实施例，并不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
本公开实施例提供了一种通信连接控制方法及装置、电子设备及存储介质，用以提供一种在多连接场景下，执行随机退避的方式。
其中，方法和装置是基于同一申请构思的，由于方法和装置解决问题的原理相似，因此装置和方法的实施可以相互参见，重复之处不再赘述。
如图1中所示，本公开实施例提供了一种通信连接控制方法，可选地，所述方法可应用于支持多连接的站点设备Non-AP MLD，该方法可以包括以下步骤：
步骤101，在第一通信连接执行随机退避操作的情况下，确定第二通信连接与所述第一通信连接的工作模式信息；所述第二通信连接为处于空闲状态的通信连接。
本公开实施例中，AP和STA可以为支持多连接的设备，例如，可以被分别表示为AP MLD和Non-AP MLD。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。
作为第一示例，参见图2，AP MLD可以表示支持多连接通信功能的接入点，Non-AP MLD可以表示支持多连接通信功能的站点。参照图2，AP MLD可以工作在三个通信连接(Link)下，如图2所示的AP1、AP2和AP3，每个AP可以分别工作在(通信)连接1、连接2以及连接3；Non-AP MLD也可以工作在三个连接下，如图2所示的STA1、STA2和STA3，STA1工作在连接1、STA2工作在连接2以及STA3工作在连接3。在图2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与STA2通过对应的第二连接Link 2进行通信，AP通过第三连接Link 3与STA3进行通信。此外，Link 1至Link 3可以分别是不同频率下的多个连接，例如，2.4GHz、5GHz、6GHz下的连接，或2.4GHz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。 可以理解的是，图2所示的通信场景仅是示例性的，本公开构思不限于此，例如，AP MLD可以连接到多个Non-AP 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。
在无线通信过程中，Non-AP MLD传输数据之前，会检查各个通信连接(后续简称为连接或Link)是否处于空闲状态。若连接处于忙碌状态，Non-AP MLD会延迟接入并利用指数退避(Exponential Backoff)算法来避免发生冲突，等候至该连接再度空闲，由此形成接入延期，该过程即随机退避过程。
工作模式信息包括STR或NSTR，处于空闲态的第二通信连接可能包括一个或多个，即第一通信连接与第二通信连接可能形成STR链路对，也可能形成NSTR链路对；支持STR的设备可在多个通信连接下同时进行上行通信和下行通信；而支持NSTR的设备在一个连接下进行上行通信时，不能同时在另一个连接下进行下行通信。在每个通信连接下随机退避是独立的，若设备在第二通信连接下感知信道空闲，且第一通信连接下感知到信道繁忙(即占用状态)时，则需执行随机退避。可选地，第一通信连接与第二通信连接互为NSTR链路对。
可以理解的是，若存在第二通信连接与第一通信连接的工作模式可形成STR，则第一通信连接与第二通信连接按照STR的工作模式分别独立进行数据发送即可。
步骤102，对所述随机退避操作对应的竞争窗口执行目标处理操作，并在所述第二通信连接中发送数据；其中，所述工作模式信息指示存在所述第二通信连接与所述第一通信连接的工作模式形成非同时发送和接收NSTR通信连接。
其中，在通信连接执行随机退避过程中，将前面的帧数据传输完成后，经过一段分布式帧间间隙(Distributed Inter-frame Spacing，DIFS)时间，Non-AP MLD会试图传送之前拥塞的帧数据。DIFS之后所衔接的一段时间为竞争窗口Contention Window(或退避窗口Backoff Window)，竞争窗口可进一步分割为时隙(Slot)，在一个竞争窗口内随机选择一个数开 始倒数，然后每一个Slot监听一次信道，若有其他连接传输，则冻结当前的倒数，等信道空闲时继续倒数，至当倒数到0则允许该节点执行数据传输。通过Backoff机制，可以让一些待传输的节点，实际传输时间在时间轴上错开，以降低冲突发生的概率。
在所述第一通信连接执行随机退避的情况下，且存在至少一个第二通信连接与第一通信连接形成NSTR链路对，则在第二通信连接中发送数据，对竞争窗口执行目标处理操作；目标处理操作例如释放所述竞争窗口或保持所述竞争窗口。
以释放所述竞争窗口为例，在所述第二通信连接所发送的数据包的时间长度大于或等于所述竞争窗口的时间长度的情况下，则在第二通信连接完成数据发送之前，所述竞争窗口已经倒数完成，维持所述竞争窗口已经没有意义，因此，释放所述第一通信连接执行随机退避的竞争窗口，避免Non-AP MLD由于执行随机退避造成电能消耗。因此，本公开实施例中，在此种场景下，释放第一通信连接执行随机退避时所产生的竞争窗口，使得随机退避去使能，节省设备电能。可选地，释放所述竞争窗口例如将所述竞争窗口内倒数的数值置为0。
再以保持所述竞争窗口为例，在所述第二通信连接所发送的数据包的时间长度小于所述竞争窗口的时间长度的情况下竞争窗口，则在第二通信连接完成数据发送之前，所述竞争窗口尚未倒数完成，此时仍需感知信道状态并等待时机发送第一通信连接的数据，因此，此时保持所述竞争窗口。
本公开实施例中，在第一通信连接执行随机退避操作，且存在处于空闲状态的第二通信连接支持NSTR的情况下，对所述随机退避操作对应的竞争窗口执行目标处理操作，并在所述第二通信连接中继续发送数据；本公开实施例提供了一种在多连接场景下，执行随机退避的方式。
在一个可选实施例中，
所述在第一通信连接执行随机退避操作的情况下，确定第二通信连接与所述第一通信连接的工作模式信息之前，所述方法包括：
确定第一通信连接执行随机退避操作；具体地，所述确定第一通信连接执行随机退避操作，包括：
对所述Non-AP MLD的通信连接进行信道空闲评估操作；
根据所述信道空闲评估操作的结果确定所述第一通信连接处于繁忙状态以及所述第二通信连接处于空闲状态的情况下，确定所述第一通信连接执行所述随机退避操作，并生成所述竞争窗口。
其中，Non-AP MLD传输数据之前，在每个通信连接下进行信道空闲评估操作(Channel Clear Assessment，CCA)，根据所述信道空闲评估操作的结果确定各个通信连接是否处于空闲状态。若所述第一通信连接处于繁忙状态以及所述第二通信连接处于空闲状态的情况下，为了避免竞争冲突，此时允许第二通信连接继续传输数据，且在第一通信连接中执行随机退避，生成所述竞争窗口，并在一个竞争窗口内随机选择一个数开始倒数，然后每一个Slot监听一次信道，若有其他连接传输，则冻结当前的倒数，等信道空闲时继续倒数。
在第一通信连接中执行随机退避的情况下，获取其他第二通信连接的工作模式，以确定后续对所述竞争窗口所执行的处理操作。
在一个可选实施例中，所述对所述随机退避操作对应的竞争窗口执行目标处理操作，包括：
在所述第二通信连接所发送的数据包的时间长度大于或等于所述竞争窗口的时间长度的情况下，释放所述竞争窗口。
其中，若所述第二通信连接所发送的数据包的时间长度大于或等于所述竞争窗口的时间长度的情况下，则在第二通信连接完成数据发送之前，所述竞争窗口已经倒数完成，维持所述竞争窗口已经没有意义，因此，此时应在第二通信连接中继续发送数据，并释放所述第一通信连接执行随机退避的竞争窗口，避免Non-AP MLD由于执行随机退避造成电能消耗。
在一个可选实施例中，所述对所述随机退避操作对应的竞争窗口执行目标处理操作，包括：
在所述第二通信连接所发送的数据包的时间长度小于所述竞争窗口的时间长度的情况下，保持所述竞争窗口。
在所述第二通信连接所发送的数据包的时间长度小于所述竞争窗口的时间长度的情况下竞争窗口，则在第二通信连接完成数据发送之前，所述竞争窗口尚未倒数完成，此时仍需感知信道状态并等待时机发送第一通信连接的数据，因此，此时保持所述竞争窗口。
如图3所示，本公开实施例提供了一种通信连接控制方法，可选地，所述方法可应用于支持多连接的站点设备Non-AP MLD，该方法可以包括以下步骤：
步骤301，在第一通信连接执行随机退避操作的情况下，根据多连接ML信息元素，确定第二通信连接与所述第一通信连接的工作模式信息；所述第二通信连接为处于空闲状态的通信连接。
其中，在通信连接执行随机退避过程中，将前面的帧数据传输完成后，经过一段DIFS时间，Non-AP MLD会试图传送之前拥塞的帧数据。DIFS之后所衔接的一段时间为竞争窗口Contention Window(或退避窗口Backoff Window)，竞争窗口可进一步分割为时隙(Slot)，在一个竞争窗口内随机选择一个数开始倒数，然后每一个Slot监听一次信道，若有其他连接传输，则冻结当前的倒数，等信道空闲时继续倒数，至当倒数到0则允许该节点执行数据传输。通过Backoff机制，可以让一些待传输的节点，实际传输时间在时间轴上错开，以降低冲突发生的概率。
在所述第一通信连接执行随机退避的情况下，根据多连接ML信息元素，确定第二通信连接与所述第一通信连接的工作模式信息；其中，多连接(Multi-Link，ML)信息元素种包括多连接控制Multi-Link Control信息、站点配置per-STA profile信息、连接信息Link info以及公共信息Common Info等。
工作模式信息包括STR或NSTR，即第一通信连接与第二通信连接形成STR链路对或NSTR链路对；支持STR的设备可在多个通信连接下同 时进行上行通信和下行通信；而支持NSTR的设备在一个连接下进行上行通信时，不能同时在另一个连接下进行下行通信。在每个通信连接下随机退避是独立的，若设备在第二通信连接下感知信道空闲，且第一通信连接下感知到信道繁忙(即占用状态)时，则需执行随机退避。可选地，第一通信连接与第二通信连接互为NSTR链路对。
可以理解的是，若第二通信连接与所述第一通信连接的工作模式信息为STR，则第一通信连接与第二通信连接分别独立进行数据发送即可。
步骤302，对所述随机退避操作对应的竞争窗口执行目标处理操作，并在所述第二通信连接中发送数据；其中，所述工作模式信息指示存在所述第二通信连接与所述第一通信连接的工作模式形成非同时发送和接收NSTR通信连接。
目标处理操作例如释放所述竞争窗口或保持所述竞争窗口。
在一个可选实施例中，所述根据多连接ML信息元素，确定第二通信连接与所述第一通信连接的工作模式信息，包括：
获取所述ML信息元素的最大同时链接数信息以及同步发送与接收STR频率间隔信息；
根据所述最大同时链接数信息以及STR频率间隔信息，确定第二通信连接与所述第一通信连接的工作模式信息；所述工作模式信息指示所述第二通信连接与所述第一通信连接的工作模式包括所述NSTR通信连接以及同步发送与接收STR通信连接。
可选地，Non-AP MLD可在初始关联过程(多连接建立过程)中，携带每个连接之间的STR频率间隔信息，譬如间隔的最小单位为20MHz，最大同时链接数(间隔数量)为6；若Non-AP MLD依据第一通信连接与第二通信连接各自的工作频率，判断不能满足STR频率间隔信息以及最大同时链接数，则可确定第一通信连接与第二通信连接的工作模式为NSTR通信连接，与第一通信连接形成NSTR链路对。
在一个可选实施例中，所述最大同时链接数信息以及STR频率间隔信息携带在所述ML信息元素的公共信息Common Info域中。
其中，作为第二示例，ML信息元素格式如以下表1所示：
表1：
Figure PCTCN2021122928-appb-000001
表1中，最大同时链接数信息以及STR频率间隔信息携带在Common Info域
在一个可选实施例中，所述ML信息元素携带在目标无线帧中；
所述目标无线帧包括多连接探测请求ML Probe Request帧、关联请求Association Request帧以及重关联请求Reassociation Request帧中的至少一种，可以理解的是，除此之外，目标无线帧还可能包括其他形式，本公开实施例在此不做具体限定。
本公开实施例中，在第一通信连接执行随机退避操作，且存在处于空闲状态的第二通信连接支持NSTR的情况下，对所述随机退避操作对应的竞争窗口执行目标处理操作，并在所述第二通信连接中继续发送数据；本公开实施例提供了一种在多连接场景下，执行随机退避的方式。
基于与本公开实施例所提供的方法相同的原理，本公开实施例还提供了一种站点设备，站点设备可以是指向用户提供语音和/或数据连通性的设备、具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备等。
如图4所示，本公开实施例提供一种站点设备，所述站点设备为支持多连接的站点设备Non-AP MLD，所述站点设备包括：
确定模块401，用于在第一通信连接执行随机退避操作的情况下，确定第二通信连接与所述第一通信连接的工作模式信息；所述第二通信连接为处于空闲状态的通信连接。
本公开实施例中，AP和STA可以为支持多连接的设备，例如，可以被分别表示为AP MLD和Non-AP MLD。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。
作为第一示例，参见图2，AP MLD可以表示支持多连接通信功能的接入点，Non-AP MLD可以表示支持多连接通信功能的站点。参照图2，AP MLD可以工作在三个通信连接(Link)下，如图2所示的AP1、AP2和AP3，每个AP可以分别工作在(通信)连接1、连接2以及连接3；Non-AP MLD也可以工作在三个连接下，如图2所示的STA1、STA2和STA3，STA1工作在连接1、STA2工作在连接2以及STA3工作在连接3。在图2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与STA2通过对应的第二连接Link 2进行通信，AP通过第三连接Link 3与STA3进行通信。此外，Link 1至Link 3可以分别是不同频率下的多个连接，例如，2.4GHz、5GHz、6GHz下的连接，或2.4GHz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。可以理解的是，图2所示的通信场景仅是示例性的，本公开构思不限于此，例如，AP MLD可以连接到多个Non-AP 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。
在无线通信过程中，Non-AP MLD传输数据之前，会检查各个通信连 接(后续简称为连接或Link)是否处于空闲状态。若连接处于忙碌状态，Non-AP MLD会延迟接入并利用指数退避(Exponential Backoff)算法来避免发生冲突，等候至该连接再度空闲，由此形成接入延期，该过程即随机退避过程。
工作模式信息包括STR或NSTR；支持STR的设备可在多个通信连接下同时进行上行通信和下行通信；而NSTR的设备在一个连接下进行上行通信时，不能同时在另一个连接下进行下行通信。在每个通信连接下随机退避是独立的，若设备在第二通信连接下感知信道空闲，且第一通信连接下感知到信道繁忙(即占用状态)时，则需执行随机退避。可选地，第一通信连接与第二通信连接互为NSTR链路对。
可以理解的是，若第二通信连接与所述第一通信连接的工作模式信息为STR，则第一通信连接与第二通信连接分别独立进行数据发送即可。
处理模块402，用于对所述随机退避操作对应的竞争窗口执行目标处理操作，并在所述第二通信连接中发送数据；其中，所述工作模式信息指示存在所述第二通信连接与所述第一通信连接的工作模式形成非同时发送和接收NSTR通信连接。
其中，在通信连接执行随机退避过程中，将前面的帧数据传输完成后，经过一段分布式帧间间隙(Distributed Inter-frame Spacing，DIFS)时间，Non-AP MLD会试图传送之前拥塞的帧数据。DIFS之后所衔接的一段时间为竞争窗口Contention Window(或退避窗口Backoff Window)，竞争窗口可进一步分割为时隙(Slot)，在一个竞争窗口内随机选择一个数开始倒数，然后每一个Slot监听一次信道，若有其他连接传输，则冻结当前的倒数，等信道空闲时继续倒数，至当倒数到0则允许该节点执行数据传输。通过Backoff机制，可以让一些待传输的节点，实际传输时间在时间轴上错开，以降低冲突发生的概率。
在所述第一通信连接执行随机退避的情况下，且第二通信连接支持NSTR，则在第二通信连接中发送数据，对竞争窗口执行目标处理操作；目标处理操作例如释放所述竞争窗口或保持所述竞争窗口。
以释放所述竞争窗口为例，在所述第二通信连接所发送的数据包的时间长度大于或等于所述竞争窗口的时间长度的情况下，则在第二通信连接完成数据发送之前，所述竞争窗口已经倒数完成，维持所述竞争窗口已经没有意义，因此，释放所述第一通信连接执行随机退避的竞争窗口，避免Non-AP MLD由于执行随机退避造成电能消耗。因此，本公开实施例中，在此种场景下，释放第一通信连接执行随机退避时所产生的竞争窗口，使得随机退避去使能，节省设备电能。可选地，释放所述竞争窗口例如将所述竞争窗口内倒数的数值置为0。
再以保持所述竞争窗口为例，在所述第二通信连接所发送的数据包的时间长度小于所述竞争窗口的时间长度的情况下竞争窗口，则在第二通信连接完成数据发送之前，所述竞争窗口尚未倒数完成，此时仍需感知信道状态并等待时机发送第一通信连接的数据，因此，此时保持所述竞争窗口。
可选地，本公开实施例中，所述站点设备包括：
操作确定模块，用于确定第一通信连接执行随机退避操作。
可选地，本公开实施例中，所述操作确定模块包括：
感知子模块，用于对所述Non-AP MLD的通信连接进行信道空闲评估操作；
第一确定子模块，用于根据所述信道空闲评估操作的结果确定所述第一通信连接处于繁忙状态以及所述第二通信连接处于空闲状态的情况下，确定所述第一通信连接执行所述随机退避操作，并生成所述竞争窗口。
可选地，本公开实施例中，所述处理模块402包括：
释放子模块，用于在所述第二通信连接所发送的数据包的时间长度大于或等于所述竞争窗口的时间长度的情况下，释放所述竞争窗口。
可选地，本公开实施例中，所述处理模块402包括：
保持子模块，用于在所述第二通信连接所发送的数据包的时间长度小于所述竞争窗口的时间长度的情况下，保持所述竞争窗口。
可选地，本公开实施例中，所述确定模块包括：
第二确定子模块，用于根据多连接ML信息元素，确定第二通信连接 与所述第一通信连接的工作模式信息。
可选地，本公开实施例中，所述第二确定子模块包括：
获取单元，用于获取所述ML信息元素的最大同时链接数信息以及同步发送与接收STR频率间隔信息；
确定单元，用于根据所述最大同时链接数信息以及STR频率间隔信息，确定第二通信连接与所述第一通信连接的工作模式信息；所述工作模式信息指示所述第二通信连接与所述第一通信连接的工作模式包括所述NSTR通信连接以及同步发送与接收STR通信连接。
可选地，本公开实施例中，所述最大同时链接数信息以及STR频率间隔信息携带在所述ML信息元素的公共信息Common Info域中。
可选地，本公开实施例中，所述ML信息元素携带在目标无线帧中；
所述目标无线帧包括多连接探测请求ML Probe Request帧、关联请求Association Request帧以及重关联请求Reassociation Request帧中的至少一种。
本公开实施例中，确定模块401确定第一通信连接执行随机退避操作，且存在处于空闲状态的第二通信连接支持NSTR的情况下，处理模块402对所述随机退避操作对应的竞争窗口执行目标处理操作，并在所述第二通信连接中继续发送数据；本公开实施例提供了一种在多连接场景下，执行随机退避的方式。
本公开实施例还提供了一种通信连接控制装置，应用于支持多连接的站点设备Non-AP MLD，所述装置包括：
信息确定模块，用于在第一通信连接执行随机退避操作的情况下，确定第二通信连接与所述第一通信连接的工作模式信息；所述第二通信连接为处于空闲状态的通信连接；
连接处理模块，用于对所述随机退避操作对应的竞争窗口执行目标处理操作，并在所述第二通信连接中发送数据；其中，所述工作模式信息指示存在所述第二通信连接与所述第一通信连接的工作模式形成非同时发送和接收NSTR通信连接。
所述装置还包括前述实施例中站点设备的其他模块，在此不再赘述。
在一个可选实施例中，本公开实施例还提供了一种电子设备，如图5所示，图5所示的电子设备5000可以为服务器，包括：处理器5001和存储器5003。其中，处理器5001和存储器5003相连，如通过总线5002相连。可选地，电子设备5000还可以包括收发器5004。需要说明的是，实际应用中收发器5004不限于一个，该电子设备5000的结构并不构成对本公开实施例的限定。
处理器5001可以是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。其可以实现或执行结合本公开公开内容所描述的各种示例性的逻辑方框，模块和电路。处理器5001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。
总线5002可包括一通路，在上述组件之间传送信息。总线5002可以是PCI(Peripheral Component Interconnect，外设部件互连标准)总线或EISA(Extended Industry Standard Architecture，扩展工业标准结构)总线等。总线5002可以分为地址总线、数据总线、控制总线等。为便于表示，图5中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
存储器5003可以是ROM(Read Only Memory，只读存储器)或可存储静态信息和指令的其他类型的静态存储设备，RAM(Random Access Memory，随机存取存储器)或者可存储信息和指令的其他类型的动态存储设备，也可以是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期望的程序代 码并能够由计算机存取的任何其他介质，但不限于此。
存储器5003用于存储执行本公开方案的应用程序代码，并由处理器5001来控制执行。处理器5001用于执行存储器5003中存储的应用程序代码，以实现前述方法实施例所示的内容。
其中，电子设备包括但不限于：移动电话、笔记本电脑、数字广播接收器、PDA(个人数字助理)、PAD(平板电脑)、PMP(便携式多媒体播放器)、车载终端(例如车载导航终端)等等的移动终端以及诸如数字TV、台式计算机等等的固定终端。图8示出的电子设备仅仅是一个示例，不应对本公开实施例的功能和使用范围带来任何限制。
本公开提供的服务器可以是独立的物理服务器，也可以是多个物理服务器构成的服务器集群或者分布式系统，还可以是提供云服务、云数据库、云计算、云函数、云存储、网络服务、云通信、中间件服务、域名服务、安全服务、CDN、以及大数据和人工智能平台等基础云计算服务的云服务器。终端可以是智能手机、平板电脑、笔记本电脑、台式计算机、智能音箱、智能手表等，但并不局限于此。终端以及服务器可以通过有线或无线通信方式进行直接或间接地连接，本公开在此不做限制。
本公开实施例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，当其在计算机上运行时，使得计算机可以执行前述方法实施例中相应内容。
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。而且，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。
需要说明的是，本公开上述的计算机可读介质可以是计算机可读信号介质或者计算机可读存储介质或者是上述两者的任意组合。计算机可读存 储介质例如可以是——但不限于——电、磁、光、电磁、红外线、或半导体的系统、装置或器件，或者任意以上的组合。计算机可读存储介质的更具体的例子可以包括但不限于：具有一个或多个导线的电连接、便携式计算机磁盘、硬盘、随机接入存储器(RAM)、只读存储器(ROM)、可擦式可编程只读存储器(EPROM或闪存)、光纤、便携式紧凑磁盘只读存储器(CD-ROM)、光存储器件、磁存储器件、或者上述的任意合适的组合。在本公开中，计算机可读存储介质可以是任何包含或存储程序的有形介质，该程序可以被指令执行系统、装置或者器件使用或者与其结合使用。而在本公开中，计算机可读信号介质可以包括在基带中或者作为载波一部分传播的数据信号，其中承载了计算机可读的程序代码。这种传播的数据信号可以采用多种形式，包括但不限于电磁信号、光信号或上述的任意合适的组合。计算机可读信号介质还可以是计算机可读存储介质以外的任何计算机可读介质，该计算机可读信号介质可以发送、传播或者传输用于由指令执行系统、装置或者器件使用或者与其结合使用的程序。计算机可读介质上包含的程序代码可以用任何适当的介质传输，包括但不限于：电线、光缆、RF(射频)等等，或者上述的任意合适的组合。
上述计算机可读介质可以是上述电子设备中所包含的；也可以是单独存在，而未装配入该电子设备中。
上述计算机可读介质承载有一个或者多个程序，当上述一个或者多个程序被该电子设备执行时，使得该电子设备执行上述实施例所示的方法。
根据本公开的一个方面，提供了一种计算机程序产品或计算机程序，该计算机程序产品或计算机程序包括计算机指令，该计算机指令存储在计算机可读存储介质中。计算机设备的处理器从计算机可读存储介质读取该计算机指令，处理器执行该计算机指令，使得该计算机设备执行上述各种可选实现方式中提供的通信连接控制方法。
可以以一种或多种程序设计语言或其组合来编写用于执行本公开的操作的计算机程序代码，上述程序设计语言包括面向对象的程序设计语言—诸如Java、Smalltalk、C++，还包括常规的过程式程序设计语言—诸如“C”语言或类似的程序设计语言。程序代码可以完全地在用户计算机上执行、 部分地在用户计算机上执行、作为一个独立的软件包执行、部分在用户计算机上部分在远程计算机上执行、或者完全在远程计算机或服务器上执行。在涉及远程计算机的情形中，远程计算机可以通过任意种类的网络——包括局域网(LAN)或广域网(WAN)—连接到用户计算机，或者，可以连接到外部计算机(例如利用因特网服务提供商来通过因特网连接)。
附图中的流程图和框图，图示了按照本公开各种实施例的系统、方法和计算机程序产品的可能实现的体系架构、功能和操作。在这点上，流程图或框图中的每个方框可以代表一个模块、程序段、或代码的一部分，该模块、程序段、或代码的一部分包含一个或多个用于实现规定的逻辑功能的可执行指令。也应当注意，在有些作为替换的实现中，方框中所标注的功能也可以以不同于附图中所标注的顺序发生。例如，两个接连地表示的方框实际上可以基本并行地执行，它们有时也可以按相反的顺序执行，这依所涉及的功能而定。也要注意的是，框图和/或流程图中的每个方框、以及框图和/或流程图中的方框的组合，可以用执行规定的功能或操作的专用的基于硬件的系统来实现，或者可以用专用硬件与计算机指令的组合来实现。
描述于本公开实施例中所涉及到的模块可以通过软件的方式实现，也可以通过硬件的方式来实现。其中，模块的名称在某种情况下并不构成对该模块本身的限定，例如，A模块还可以被描述为“用于执行B操作的A模块”。
以上描述仅为本公开的较佳实施例以及对所运用技术原理的说明。本领域技术人员应当理解，本公开中所涉及的公开范围，并不限于上述技术特征的特定组合而成的技术方案，同时也应涵盖在不脱离上述公开构思的情况下，由上述技术特征或其等同特征进行任意组合而形成的其它技术方案。例如上述特征与本公开中公开的(但不限于)具有类似功能的技术特征进行互相替换而形成的技术方案。

Claims (19)

  1. 一种通信连接控制方法，应用于支持多连接的站点设备Non-AP MLD，其特征在于，所述方法包括：
    在第一通信连接执行随机退避操作的情况下，确定第二通信连接与所述第一通信连接的工作模式信息；所述第二通信连接为处于空闲状态的通信连接；
    对所述随机退避操作对应的竞争窗口执行目标处理操作，并在所述第二通信连接中发送数据；其中，所述工作模式信息指示存在所述第二通信连接与所述第一通信连接的工作模式形成非同时发送和接收NSTR通信连接。
  2. 根据权利要求1所述的通信连接控制方法，其特征在于，所述在第一通信连接执行随机退避操作的情况下，确定第二通信连接与所述第一通信连接的工作模式信息之前，所述方法包括：
    确定第一通信连接执行随机退避操作。
  3. 根据权利要求2所述的通信连接控制方法，其特征在于，所述确定第一通信连接执行随机退避操作，包括：
    对所述Non-AP MLD的通信连接进行信道空闲评估操作；
    根据所述信道空闲评估操作的结果确定所述第一通信连接处于繁忙状态以及所述第二通信连接处于空闲状态的情况下，确定所述第一通信连接执行所述随机退避操作，并生成所述竞争窗口。
  4. 根据权利要求1所述的通信连接控制方法，其特征在于，所述对所述随机退避操作对应的竞争窗口执行目标处理操作，包括：
    在所述第二通信连接所发送的数据包的时间长度大于或等于所述竞争窗口的时间长度的情况下，释放所述竞争窗口。
  5. 根据权利要求1所述的通信连接控制方法，其特征在于，所述对所述随机退避操作对应的竞争窗口执行目标处理操作，包括：
    在所述第二通信连接所发送的数据包的时间长度小于所述竞争窗口 的时间长度的情况下竞争窗口，保持所述竞争窗口。
  6. 根据权利要求1所述的通信连接控制方法，其特征在于，所述确定第二通信连接与所述第一通信连接的工作模式信息，包括：
    根据多连接ML信息元素，确定第二通信连接与所述第一通信连接的工作模式信息。
  7. 根据权利要求6所述的通信连接控制方法，其特征在于，所述根据多连接ML信息元素，确定第二通信连接与所述第一通信连接的工作模式信息，包括：
    获取所述ML信息元素的最大同时链接数信息以及同步发送与接收STR频率间隔信息；
    根据所述最大同时链接数信息以及STR频率间隔信息，确定第二通信连接与所述第一通信连接的工作模式信息；所述工作模式信息指示所述第二通信连接与所述第一通信连接的工作模式包括所述NSTR通信连接以及同步发送与接收STR通信连接。
  8. 根据权利要求7所述的通信连接控制方法，其特征在于，所述最大同时链接数信息以及STR频率间隔信息携带在所述ML信息元素的公共信息Common Info域中。
  9. 根据权利要求6所述的通信连接控制方法，其特征在于，所述ML信息元素携带在目标无线帧中；
    所述目标无线帧包括多连接探测请求ML Probe Request帧、关联请求Association Request帧以及重关联请求Reassociation Request帧中的至少一种。
  10. 一种站点设备，所述站点设备为支持多连接的站点设备Non-AP MLD，其特征在于，所述站点设备包括：
    确定模块，用于在第一通信连接执行随机退避操作的情况下，确定第二通信连接与所述第一通信连接的工作模式信息；所述第二通信连接为处于空闲状态的通信连接；
    处理模块，用于对所述随机退避操作对应的竞争窗口执行目标处理操 作，并在所述第二通信连接中发送数据；其中，所述工作模式信息指示存在所述第二通信连接与所述第一通信连接的工作模式形成非同时发送和接收NSTR通信连接。
  11. 根据权利要求10所述的站点设备，其特征在于，所述站点设备包括：
    操作确定模块，用于确定第一通信连接执行随机退避操作。
  12. 根据权利要求11所述的站点设备，其特征在于，所述操作确定模块包括：
    感知子模块，用于对所述Non-AP MLD的通信连接进行信道空闲评估操作；
    第一确定子模块，用于根据所述信道空闲评估操作的结果确定所述第一通信连接处于繁忙状态以及所述第二通信连接处于空闲状态的情况下，确定所述第一通信连接执行所述随机退避操作，并生成所述竞争窗口。
  13. 根据权利要求10所述的站点设备，其特征在于，所述处理模块包括：
    释放子模块，用于在所述第二通信连接所发送的数据包的时间长度大于或等于所述竞争窗口的时间长度的情况下，释放所述竞争窗口。
  14. 根据权利要求10所述的站点设备，其特征在于，所述处理模块包括：
    保持子模块，用于在所述第二通信连接所发送的数据包的时间长度小于所述竞争窗口的时间长度的情况下，保持所述竞争窗口。
  15. 根据权利要求10所述的站点设备，其特征在于，所述确定模块包括：
    第二确定子模块，用于根据多连接ML信息元素，确定第二通信连接与所述第一通信连接的工作模式信息。
  16. 根据权利要求15所述的站点设备，其特征在于，所述第二确定子模块包括：
    获取单元，用于获取所述ML信息元素的最大同时链接数信息以及同 步发送与接收STR频率间隔信息；
    确定单元，用于根据所述最大同时链接数信息以及STR频率间隔信息，确定第二通信连接与所述第一通信连接的工作模式信息；所述工作模式信息指示所述第二通信连接与所述第一通信连接的工作模式包括所述NSTR通信连接以及同步发送与接收STR通信连接。
  17. 一种通信连接控制装置，应用于支持多连接的站点设备Non-AP MLD，其特征在于，所述装置包括：
    信息确定模块，用于在第一通信连接执行随机退避操作的情况下，确定第二通信连接与所述第一通信连接的工作模式信息；所述第二通信连接为处于空闲状态的通信连接；
    连接处理模块，用于对所述随机退避操作对应的竞争窗口执行目标处理操作，并在所述第二通信连接中发送数据；其中，所述工作模式信息指示存在所述第二通信连接与所述第一通信连接的工作模式形成非同时发送和接收NSTR通信连接。
  18. 一种电子设备，其特征在于，包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，所述处理器执行所述程序时实现权利要求1至9中任一项所述的方法。
  19. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现权利要求1至9中任一项所述的方法。
PCT/CN2021/122928 2021-10-09 2021-10-09 通信连接控制方法及装置、电子设备及存储介质 WO2023056652A1 (zh)

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