WO2024002060A1 - 一种通信方法、装置及计算机可读存储介质 - Google Patents

一种通信方法、装置及计算机可读存储介质 Download PDF

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Publication number
WO2024002060A1
WO2024002060A1 PCT/CN2023/102716 CN2023102716W WO2024002060A1 WO 2024002060 A1 WO2024002060 A1 WO 2024002060A1 CN 2023102716 W CN2023102716 W CN 2023102716W WO 2024002060 A1 WO2024002060 A1 WO 2024002060A1
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Prior art keywords
twt
exclusive
sta
information
frame
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PCT/CN2023/102716
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English (en)
French (fr)
Inventor
杨懋
高庆松
李云波
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华为技术有限公司
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Publication of WO2024002060A1 publication Critical patent/WO2024002060A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
    • H04W16/10—Dynamic resource partitioning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • 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]
    • 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 application relates to the field of wireless communication technology, and in particular, to a communication method, device and computer-readable storage medium.
  • WLAN communication standards started from IEEE 802.11a/g and developed to today's IEEE 802.11ax (called Wi-Fi 6 by the Wi-Fi Alliance, also known as High-efficiency wireless (HEW) standard) and IEEE 802.11be (called Wi-Fi 7 by the Wi-Fi Alliance, also known as extremely high throughput (EHT) standard), which allow the transmission of
  • Wi-Fi 6 by the Wi-Fi Alliance
  • Wi-Fi 7 by the Wi-Fi Alliance, also known as extremely high throughput (EHT) standard
  • EHT extremely high throughput
  • Target wake time is a technology defined by Wi-Fi6 for energy saving. It means that the station (station, STA) and the access point (access point, AP) can agree on the service time (service period, SP), remains active and communicates during the service time, so that it can sleep outside the service time to achieve energy saving.
  • TWT can be divided into unicast (individual) TWT and broadcast (broadcast) TWT.
  • Embodiments of the present application provide a communication method, device and computer-readable storage medium, which can ensure that STAs with ultra-low delay and high throughput services can access transmission and reduce delays.
  • inventions of the present application provide a communication method, which can be applied to STA, can also be applied to modules (for example, chips or processors) in STA, and can also be applied to realize all or part of STA functions. logic modules or software.
  • the following description takes the execution subject as STA as an example.
  • the communication method includes: the STA sends a TWT request frame to the AP, the TWT request frame includes a TWT element, the TWT element includes exclusive TWT information, and the exclusive TWT information is used to indicate that the STA exclusive TWT SP; the STA receives a TWT reply frame from the AP, The TWT reply frame includes a TWT element; the STA receives the first frame from the AP.
  • the first frame is used to indicate the silent element.
  • the silent element is used to allow other devices in this basic service set (BSS) except the STA to The STA remains silent, and the starting time of the silent period corresponding to the silent element is the same as the starting time of the exclusive TWT SP; the STA transmits with the AP based on the exclusive TWT information and the silent element.
  • BSS basic service set
  • the embodiments of this application can realize exclusive TWT through exclusive TWT information and silent elements, and can effectively ensure the access and transmission of low-latency users.
  • an exclusive TWT can be provided.
  • the exclusive TWT can represent a type of TWT SP negotiated by the AP and STA that is exclusive to only one STA. By using the exclusive TWT SP of only one STA, the service flow with ultra-low latency and high throughput characteristics can be protected. transmission.
  • the first frame is a probe response frame or a beacon frame.
  • the silence element can be carried in a detection response frame or a beacon frame, or in other frames that can implement this function.
  • the embodiment of this application does not limit the type of the frame.
  • the exclusive TWT information is determined by the broadcast TWT suggestion value in the TWT element.
  • the exclusive TWT method can be implemented based on the broadcast TWT recommendation domain.
  • Exclusive TWT is a special broadcast TWT.
  • Implementing the exclusive TWT method can ensure the access of users who apply for exclusive TWT, thereby protecting the service flow transmission with ultra-low latency and high throughput characteristics.
  • the recommended broadcast TWT value is 5.
  • a new broadcast TWT recommended value can be selected to distinguish it from the original TWT type.
  • the broadcast TWT recommended value can be set to 5. It should be noted that, In the embodiment of this application, only 5 is used as For example, the broadcast TWT suggested value can also be other values, such as 6 or 7.
  • the first frame includes TWT elements.
  • the AP can broadcast the TWT element and the silent element including the exclusive TWT information in the first frame, so that the STA can realize the exclusive TWT through the exclusive TWT information and the silent element, which can effectively protect low-latency users. access and transmission.
  • the TWT element includes a broadcast TWT identifier, and the broadcast TWT identifiers of different STAs are different.
  • the STA since the STA exclusively occupies the TWT SP, when the beacon frame broadcasts the TWT element corresponding to the exclusive TWT, different exclusive STAs can be distinguished by different broadcast TWT identifiers in the TWT element, so it can be achieved
  • the STA exclusively occupies the TWT SP, causing other STAs in this BSS to remain silent except this STA. Therefore, the access of users who apply for exclusive TWT can be guaranteed, thereby protecting the service flow transmission with ultra-low latency and high throughput characteristics.
  • the exclusive TWT information is carried in the reserved bits in the broadcast TWT information subfield of the TWT element.
  • the reserved bits in the broadcast TWT information subfield in the TWT element can be used as the exclusive TWT indication field to implement the exclusive TWT method.
  • Implementing the exclusive TWT method can ensure the access of users who apply for exclusive TWT, thereby protecting the service flow transmission with ultra-low latency and high throughput characteristics.
  • the exclusive TWT information is carried in the reserved bits in the control field of the TWT element.
  • the reserved bits in the control field in the TWT element can be used as the exclusive TWT indication field to implement the exclusive TWT method.
  • Implementing the exclusive TWT method can ensure the access of users who apply for exclusive TWT, thereby protecting the service flow transmission with ultra-low latency and high throughput characteristics.
  • the TWT element carries indication information, and the indication information is used to indicate whether ultra-low delay services exist.
  • the TWT element when the indication information indicates that an ultra-low delay service exists, the TWT element also includes the service type of the ultra-low delay service.
  • embodiments of the present application provide a communication method, which can be applied to APs, can also be applied to modules (for example, chips or processors) in APs, and can also be applied to realize all or part of AP functions.
  • modules for example, chips or processors
  • logic modules or software The following description takes the execution subject as AP as an example.
  • the communication method includes: the AP receives a TWT request frame from the STA, the TWT request frame includes a TWT element, the TWT element includes exclusive TWT information, and the exclusive TWT information is used to indicate that the STA exclusive TWT SP; the AP sends a TWT reply frame to the STA, and the TWT reply
  • the frame includes a TWT element; the AP determines the silent element based on the exclusive TWT information.
  • the silent element is used to keep other STAs in this BSS silent except the mentioned STA.
  • the starting time of the silent period corresponding to the silent element is the same as that of the exclusive TWT SP. The starting time is the same; the first frame is sent to the STA, and the first frame is used to indicate the above-mentioned silence element.
  • the embodiments of this application can realize exclusive TWT through exclusive TWT information and silent elements, and can effectively ensure the access and transmission of low-latency users.
  • an exclusive TWT can be provided.
  • the exclusive TWT can represent a type of TWT SP negotiated by the AP and STA that is exclusive to only one STA. By using the exclusive TWT SP of only one STA, the service flow with ultra-low latency and high throughput characteristics can be protected. transmission.
  • the execution subject of the second aspect may be an AP
  • the specific content of the second aspect corresponds to the content of the first aspect
  • the corresponding features and beneficial effects achieved in the second aspect may refer to the description of the first aspect. To avoid repetition, this Detailed descriptions are appropriately omitted.
  • the first frame is a detection response frame or a beacon frame.
  • the exclusive TWT information is determined by the broadcast TWT suggestion value in the TWT element.
  • the recommended broadcast TWT value is 5.
  • the first frame includes TWT elements.
  • the TWT element includes a broadcast TWT identifier
  • the method further includes: the AP determines the broadcast TWT identifier based on the exclusive TWT information, and different STAs have different broadcast TWT identifiers.
  • the exclusive TWT information is carried in the reserved bits in the broadcast TWT information subfield of the TWT element.
  • the exclusive TWT information is carried in reserved bits in the control field of the TWT element.
  • the TWT element carries indication information, and the indication information is used to indicate whether ultra-low delay service exists.
  • the TWT element when the indication information indicates that an ultra-low delay service exists, the TWT element further includes the service type of the ultra-low delay service.
  • inventions of the present application provide a communication device.
  • the communication device may be applied to the STA, may be applied to a module (for example, a chip or a processor) in the STA, or may be applied to a logic module or software that can realize all or part of the STA functions.
  • the communication device has the function of implementing the behavior in the method example of the first aspect.
  • the functions described can be implemented by hardware, or can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the communication device includes:
  • a sending unit configured to send a TWT request frame to the AP, where the TWT request frame includes a TWT element, the TWT element includes exclusive TWT information, and the exclusive TWT information is used to indicate the STA’s exclusive TWT service time SP;
  • a receiving unit configured to receive a TWT reply frame from the AP, where the TWT reply frame includes the TWT element;
  • the receiving unit is also configured to receive the first frame from the AP.
  • the first frame is used to indicate a silent element.
  • the silent element is used to allow other devices in the basic service set BSS except the STA to STA remains silent, and the starting time of the silent period corresponding to the silent element is the same as the starting time of the exclusive TWT SP;
  • a processing unit configured to transmit with the AP according to the exclusive TWT information and the silent element.
  • the first frame is a detection response frame or a beacon frame.
  • the exclusive TWT information is determined by the broadcast TWT suggestion value in the TWT element.
  • the recommended broadcast TWT value is 5.
  • the first frame includes the TWT element.
  • the TWT element includes a broadcast TWT identifier, and the broadcast TWT identifiers of different STAs are different.
  • the exclusive TWT information is carried in reserved bits in the broadcast TWT information subfield of the TWT element.
  • the exclusive TWT information is carried in reserved bits in the control field of the TWT element.
  • the TWT element carries indication information, and the indication information is used to indicate whether ultra-low delay service exists.
  • the TWT element when the indication information indicates that an ultra-low delay service exists, the TWT element further includes the service type of the ultra-low delay service.
  • inventions of the present application provide a communication device.
  • the communication device may be applied to the AP, may be applied to a module (for example, a chip or a processor) in the AP, or may be applied to a logic module or software that can realize all or part of the AP functions.
  • the communication device has the function of implementing the behavior in the method example of the second aspect.
  • the functions described can be implemented by hardware, or can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the communication device includes:
  • a receiving unit configured to receive a TWT request frame from an STA, where the TWT request frame includes a TWT element, the TWT element includes exclusive TWT information, and the exclusive TWT information is used to indicate the STA’s exclusive TWT service time SP;
  • a sending unit configured to send a TWT reply frame to the STA, where the TWT reply frame includes the TWT element;
  • Determining unit configured to determine a silent element based on the exclusive TWT information.
  • the silent element is used to keep other STAs in the basic service set BSS except the STA silent.
  • the silent period corresponding to the silent element is The starting time is the same as the starting time of the exclusive TWT SP;
  • the sending unit is further configured to send a first frame to the STA, where the first frame is used to indicate the silence element.
  • the first frame is a detection response frame or a beacon frame.
  • the exclusive TWT information is determined by the broadcast TWT suggestion value in the TWT element.
  • the recommended broadcast TWT value is 5.
  • the first frame includes the TWT element.
  • the TWT element includes a broadcast TWT identifier
  • the determining unit is also used to:
  • the broadcast TWT identifier is determined according to the exclusive TWT information, and the broadcast TWT identifiers of different STAs are different.
  • the exclusive TWT information is carried in reserved bits in the broadcast TWT information subfield of the TWT element.
  • the exclusive TWT information is carried in reserved bits in the control field of the TWT element.
  • the TWT element carries indication information, and the indication information is used to indicate whether ultra-low delay service exists.
  • the TWT element when the indication information indicates that an ultra-low delay service exists, the TWT element further includes the service type of the ultra-low delay service.
  • a communication device may be the STA in the above method embodiment, or a chip or processor provided in the STA.
  • the communication device may include a processor, and the processor is coupled to a memory.
  • the memory is used to store programs or instructions.
  • the communication device executes the above method embodiment by the STA, or the chip in the STA, or The method executed by the processor.
  • a communication device may be the AP in the above method embodiment, or a chip or processor provided in the AP.
  • the communication device may include a processor.
  • the processor is coupled to a memory.
  • the memory is used to store programs or instructions. When the programs or instructions are executed by the processor, the communication device performs the above method embodiments by the AP, or the chip in the AP, or The method executed by the processor.
  • embodiments of the present application provide a computer-readable storage medium.
  • the computer-readable storage medium stores instructions. When the instructions are run on a computer, they cause the computer to execute the above-mentioned first aspect or any one of the first aspects. Possible implementation methods.
  • embodiments of the present application provide a computer-readable storage medium.
  • the computer-readable storage medium stores instructions. When the instructions are run on a computer, they cause the computer to execute the above second aspect or any one of the second aspects. Possible implementation methods.
  • embodiments of the present application provide a computer program product containing program instructions that, when run on a computer, causes the computer to execute the method of the first aspect or any possible implementation of the first aspect.
  • embodiments of the present application provide a computer program product containing program instructions, which, when run on a computer, causes the computer to execute the method of the above-mentioned second aspect or any possible implementation of the second aspect.
  • embodiments of the present application provide a chip system.
  • the chip system includes a processor and is used to implement the functions in each of the above methods.
  • the chip system may also include a memory for storing program instructions and/or data.
  • the chip system can be composed of chips or include chips and other discrete devices.
  • embodiments of the present application provide a communication system, which includes the STA provided in the first aspect and the AP provided in the second aspect.
  • Figure 1 is a schematic diagram of a network architecture provided by an embodiment of the present application.
  • Figure 2 is a schematic diagram of an implementation method of a single-user TWT service phase in the prior art
  • Figure 3 is a schematic diagram of the frame structure of a single-user TWT element in the prior art
  • Figure 4 is a schematic diagram of an implementation method of the r-TWT service phase in the prior art
  • Figure 5 is a schematic diagram of the frame structure of an r-TWT element in the prior art
  • Figure 6 is a flow interaction diagram of a communication method provided by an embodiment of the present application.
  • Figure 7 is a schematic structural diagram of a broadcast TWT information subfield provided by an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a control domain in a TWT element provided by an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a TWT control domain provided by an embodiment of the present application.
  • Figure 10 is a schematic structural diagram of a broadcast TWT parameter set domain provided by an embodiment of the present application.
  • Figure 11 is a schematic structural diagram of a single-user TWT parameter set domain provided by an embodiment of the present application.
  • Figure 12 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • Figure 13 is a schematic structural diagram of another communication device provided by an embodiment of the present application.
  • Figure 14 is a schematic structural diagram of yet another communication device provided by an embodiment of the present application.
  • FIG. 1 is a schematic diagram of a network architecture provided by an embodiment of the present application.
  • the network architecture 100 includes an access point AP101 and one or more stations (STA102-STA103).
  • the access points and sites support the wireless local access network (WLAN) communication protocol.
  • the communication protocol can include IEEE 802.11be (or Wi-Fi 7, EHT protocol), and can also include IEEE 802.11n, IEEE 802.11ax, IEEE 802.11ac and other protocols.
  • the name of the 802.11n standard can also be called high throughput.
  • the name of the 802.11ac standard can also be called very high throughput (VHT), the name of the 802.11ax standard can also be called high efficiency (HE), and the name of the 802.11be standard can also be called high throughput (HT).
  • the name can also be called extremely high throughput (EHT).
  • the communication protocol can also include the next generation protocol of IEEE802.11be, etc.
  • the device that implements the method of the present application may be an access point or station in the WLAN, or a chip or processing system installed in the access point or station.
  • An access point (for example, AP101) is a device with wireless communication functions that supports communication using the WLAN protocol and has the function of communicating with other devices in the WLAN network (such as sites or other access points). Of course, it can also have The ability to communicate with other devices.
  • an access point may be called an access point station (AP STA).
  • the device can be a complete device, or it can be a chip or a processing system installed in the complete device. The devices equipped with these chips or processing systems can implement the embodiments of the present application under the control of the chip or processing system. methods and functions.
  • the AP in the embodiment of this application may be a device that provides services for STA, and may support the 802.11 series protocols.
  • AP can be communication entities such as communication servers, routers, switches, and bridges; AP can include various forms of macro base stations, micro base stations, relay stations, etc. Of course, AP can also be chips and processing in these various forms of equipment. system, thereby realizing the methods and functions of the embodiments of this application.
  • a station is a device with wireless communication capabilities that supports communication using the WLAN protocol and has the ability to communicate with other stations or access points in the WLAN network.
  • a station can be called a non-access point station (non-AP STA).
  • STA is any user communication device that allows users to communicate with APs and then with WLAN.
  • the device can be a complete device, or it can be a chip or processing system installed in the complete device. These chips or processing systems are installed on the STA.
  • the equipment of the system can implement the methods and functions of the embodiments of the present application under the control of the chip or processing system.
  • STA can be a tablet computer, desktop, laptop, notebook computer, ultra-mobile personal computer (UMPC), handheld computer, netbook, personal digital assistant (personal digital assistant, PDA), mobile phone, etc.
  • User equipment that can be connected to the Internet, or IoT nodes in the Internet of Things, or vehicle-mounted communication devices or entertainment equipment, game equipment or systems, global positioning system equipment, etc. in the Internet of Vehicles.
  • STA can also provide chips and processing system.
  • WLAN systems can provide high-speed and low-latency transmission. With the continuous evolution of WLAN application scenarios, WLAN systems will be used in more scenarios or industries, such as in the Internet of Things industry, in the Internet of Vehicles industry or in Banking industry, used in corporate offices, sports venues and exhibition halls, concert halls, hotel rooms, dormitory wards, classrooms, supermarkets, squares, streets, production workshops and warehousing, etc.
  • devices that support WLAN communication can be sensor nodes in smart cities (such as smart water meters, smart electricity meters, smart air detection nodes), smart devices in smart homes (such as smart cameras, projectors) , display screen, TV, audio, refrigerator, washing machine, etc.), nodes in the Internet of Things, entertainment terminals (such as AR, VR and other wearable devices), smart devices in smart offices (such as printers, projectors, loudspeakers) devices, speakers, etc.), Internet of Vehicles equipment in the Internet of Vehicles, infrastructure in daily life scenes (such as vending machines, self-service navigation stations in supermarkets, self-service cashier equipment, self-service ordering machines, etc.), as well as large-scale sports and music Venue equipment, etc.
  • there is no special limitation on the specific forms of STA and AP there is no special limitation on the specific forms of STA and AP, and this is only an exemplary description.
  • TWT is a technology defined by Wi-Fi6 for energy saving.
  • the core idea is to set some periodic time periods so that some devices only need to remain active during these TWT service periods (service period, TWT SP), and can sleep at other times, thereby achieving the purpose of energy saving.
  • TWT is divided into unicast TWT (individual TWT) and broadcast TWT (broadcast TWT).
  • unicast TWT each STA can establish a TWT protocol with the AP independently. Therefore, each STA can have its own active time period and dormancy. time period; in broadcast TWT, The AP can establish a common TWT protocol for a group of STAs. Multiple STAs work in the same active time period and sleep in other time periods.
  • Unicast TWT means that the TWT requesting site (requesting) sends a TWT request message to the TWT responding site (responding), requesting to set a wake-up time. After receiving the TWT request message, the responding site sends a TWT response message to the requesting site. After the interaction is successful, a TWT protocol is established between the requesting site and the responding site. When the TWT agreement is reached, both the requesting site and the responding site should remain active during the agreed time period in order to send and receive data. Outside of the above time periods, the site can go into hibernation to save energy.
  • the STA sends a TWT protocol establishment request to the AP, that is, the STA is the requesting site and the AP is the responding site.
  • the AP can also initiate a TWT protocol establishment request to the site.
  • the agreed active time period is called the TWT service phase.
  • Broadcast TWT Different from unicast TWT, broadcast TWT provides a "batch management" mechanism.
  • the AP can establish a series of periodically occurring TWT service phases with multiple STAs. During the TWT service phase, the above multiple STAs need to remain active to communicate with the AP.
  • the AP can carry information about one or more broadcast TWTs in a beacon frame.
  • Each broadcast TWT is represented by a broadcast TWT identifier and the AP's media access control (media access control, MAC) address.
  • the STA After receiving the beacon frame, if the STA is willing to join the broadcast TWT, it can send a broadcast TWT establishment request message to the AP to join the broadcast TWT.
  • the parameter set of broadcast TWT also specifies the period in which TWT service phases occur and the duration of each TWT service phase.
  • the broadcast TWT parameters also include the life cycle of the broadcast TWT, which is expressed in the beacon frame interval as the duration of the established broadcast TWT.
  • Wi-Fi wireless local area network
  • emerging mobile applications have increasingly higher requirements for WLAN latency performance.
  • wireless video, voice, games, augmented reality (AR)/virtual reality (VR) and other applications have very high requirements on communication delay.
  • AR augmented reality
  • VR virtual reality
  • WLAN needs to prioritize different services.
  • each device has four different access levels, and transmission priority is achieved through different competition parameters; each access level can include two service identifiers to correspond to two different business.
  • each access level can include two service identifiers to correspond to two different business.
  • data packets for low-latency services are generated periodically.
  • Single-user target wakeup time (individual target wakeup time, individual TWT) is an energy-saving mechanism proposed in IEEE 802.11ax.
  • Figure 2 is a schematic diagram of an implementation method of a single-user TWT service phase in the prior art.
  • the STA can use the TWT mechanism to negotiate a data sending time with the AP. Specifically, the STA sends a TWT request frame to the AP, and the AP sends a TWT reply frame to the STA. The AP sends a beacon frame to the STA to indicate the single-user TWT SP start time.
  • the STA When the single-user TWT is established, the STA only needs to wake up at the negotiated time point and wait for the AP to schedule transmission. For example, the AP sends a basic trigger frame to the STA, a single user TWT SP, the STA and the AP start transmitting data (for example, the STA sends a data frame to the AP, and the AP sends a confirmation frame to the STA).
  • the TWT element may include an element ID field, a length field, a control field, and a TWT parameter information field.
  • the control field field may include an NDP paging indicator (NDP paging indicator) subfield, a responder PM mode (responder PM mode) subfield, a negotiation type (negotiation type) subfield, and disabled TWT information.
  • TWT information frame disabled subfield
  • wake duration unit wake duration unit
  • link ID bitmap presence indication link ID bitmap present
  • reserved reserved (reserved) subfield.
  • the TWT parameter information field may include a request type subfield, a target wake time subfield, a TWT group assignment subfield, and a nominal minimum TWT wake duration.
  • TWT wake duration) subfield TWT wake interval mantissa subfield, TWT channel (T channel) subfield, NDP paging (optional) subfield, link ID Bitmap (link ID bitmap) subfield.
  • the first solution only allows the STA to negotiate the transmission time with the AP, but other STAs will access the transmission during its TWT service, so it cannot effectively guarantee the access of STAs with ultra-low latency and high throughput services. transmission.
  • r-TWT Restricted target wakeup time
  • r-TWT Restricted target wakeup time
  • SP Service Period
  • the EHT STA in the BSS receives any r-TWT SP information broadcast by the AP, if the dot11Restricted TWT Option Implemented of the STA is set to true, then the EHT STA ends its own transmission before the r-TWT SP start time Opportunity (Transmission Opportunity, TXOP).
  • the AP can set the Quiet Interval (Quiet Interval) aligned with the r-TWT SP start time in the Beacon or Probe Response frame, and the duration can be 1 millisecond (ms). It is required that EHT STA can ignore the above silent interval and compete for the channel after the start of r-TWT SP.
  • EHT STA can belong to this r-TWT SP group (grouped by Broadcast TWT ID) or not belong to this r-TWT SP group. TWT SP group. Other STAs need to remain silent according to the silent interval. This will reduce the number of STAs competing for the channel in the BSS and increase the probability that EHT STAs with low-latency services can obtain the channel.
  • the r-TWT information is indicated in the TWT element field.
  • Figure 5 is a schematic diagram of the frame structure of an r-TWT element in the prior art.
  • the broadcast target wake-up time information subfield contains a one-bit specific TWT traffic information subfield presence indication subfield (restricted TWT traffic info present). The value of this bit is 1 to represent the TWT element field.
  • the broadcast TWT ID subfield represents the identification number of the TWT group.
  • the second option can restrict the channel access of other non-EHT STAs inside the BSS through silent elements, but it still allows the channel access of other EHT STAs outside the BSS, so it cannot Effectively guarantee the access and transmission of STAs with ultra-low latency and high throughput services.
  • the embodiment of this application provides a communication method that can effectively guarantee ultra-low delay and high throughput by using one STA to monopolize a type of TWT SP (exclusive TWT).
  • STAs of throughput services perform access transmission to reduce delays.
  • Figure 6 is a flow interaction diagram of a communication method provided by an embodiment of the present application.
  • the method is illustrated by taking the AP and STA as the execution subjects of the interaction gesture as an example, but this application does not limit the execution subjects of the interaction gesture.
  • the AP in Figure 6 can also be a chip, chip system, or processor that supports the AP to implement the method, or a logic module or software that can implement all or part of the AP functions;
  • the STA in Figure 6 can also be The chip, chip system, or processor that supports the STA to implement the method may also be a logic module or software that can realize all or part of the STA functions.
  • the communication method includes but is not limited to the following steps.
  • the STA sends a TWT request frame including a TWT element to the AP, where the TWT element includes exclusive TWT information. Accordingly, the AP receives a TWT request frame including a TWT element from the STA.
  • the STA can send a TWT request frame to the AP.
  • the TWT request frame can include a TWT element, and the TWT element can include exclusive TWT information.
  • This STA can be understood as a STA that applies to use the exclusive TWT.
  • Exclusive TWT (Exclusive Target Wakeup Time, Exclusive TWT) can be understood as indicating a type of TWT SP negotiated by the AP and STA that is exclusive to only one STA.
  • STA can achieve exclusive TWT SP by exclusive TWT information.
  • the implementation method can satisfy any of the following:
  • Method 1 An exclusive TWT method based on broadcasting the TWT recommendation domain and broadcasting the corresponding TWT element in the beacon frame.
  • Exclusive TWT is a special type of broadcast TWT.
  • STA and AP establish an exclusive TWT, they can choose a new (i.e., a value that has not been used before) broadcast TWT recommendation field value to distinguish it from the original TWT type. For example, as shown in Table 1, you can Set the broadcast TWT recommended value to 5.
  • Table 1 only takes setting the recommended broadcast TWT value to 5 as an example.
  • the recommended broadcast TWT value can also be set to 6 or 7, etc.
  • the embodiment of this application does not limit the size of the broadcast TWT suggested value.
  • the AP can broadcast the TWT element corresponding to the exclusive TWT in a beacon frame.
  • the TWT element includes a broadcast TWT identifier, so the broadcast TWT identifiers corresponding to different STAs can be different to distinguish different STAs, thereby ensuring that only one STA can exclusively occupy the TWT.
  • Method 2 An exclusive TWT method based on r-TWT and not broadcasting the corresponding TWT element in the beacon frame.
  • TWT Setup Frame TWT Setup Request Frame
  • bit indicates that it is an exclusive TWT, or uses a new broadcast TWT suggested value.
  • Figure 7 is a schematic structural diagram of a broadcast TWT information subfield provided by an embodiment of the present application.
  • the Broadcast TWT Recommendation field value is 4, and the existing reserved bits in the Broadcast TWT information subfield are used as the exclusive TWT indication field.
  • the exclusive TWT field is set to 1, then It means that the TWT is an exclusive TWT, otherwise it is a traditional r-TWT.
  • the AP may not broadcast the TWT element including the exclusive TWT information in the beacon frame. It should be noted that since the TWT element including exclusive TWT information is not broadcast in the beacon frame, this field can be valid during the negotiation process of exclusive TWT establishment. In the exclusive element carried during the non-establishment and negotiation process, this field The field can be set to Reserved, which does not mean anything.
  • Figure 8 is a schematic structural diagram of a control domain in a TWT element provided by an embodiment of the present application.
  • the Broadcast TWT Recommendation field value is 4, and the existing reserved bits (Reserved) can be used in the Control Field as the exclusive TWT indication field to indicate whether there is an overrun.
  • the exclusive TWT indication field For low-latency service flows, when it is set to 1, it can indicate that the TWT is an exclusive TWT, and vice versa, it is a traditional r-TWT.
  • the AP may not broadcast the TWT element including the exclusive TWT information in the beacon frame. It should be noted that since the TWT element including exclusive TWT information is not broadcast in the beacon frame, this field can be valid during the negotiation process of exclusive TWT establishment. In the exclusive element carried during the non-establishment and negotiation process, this field The field can be set to Reserved, which does not mean anything.
  • One possible implementation method is to use the broadcast TWT recommended value in the new broadcast TWT element.
  • the broadcast TWT recommended value can be set to 5, or as shown in Table 2, the broadcast TWT recommended value can also be set. is 6, or as shown in Table 3, the broadcast TWT recommended value can also be set to 7, etc.
  • the embodiment of this application does not limit the size of the broadcast TWT suggested value.
  • the AP may not broadcast the TWT element including the exclusive TWT information in the beacon frame.
  • the TWT element includes the broadcast TWT identifier. Since the AP does not broadcast the TWT element including exclusive TWT information in the beacon frame, the broadcast TWT identifiers corresponding to different STAs can be the same or different, thereby distinguishing different STAs, thereby ensuring that only one STA exclusively owns TWT.
  • Method 3 Exclusive TWT method based on single-user TWT (individual TWT).
  • an STA when an STA applies for a low-latency single-user TWT, it needs to indicate whether it is an exclusive TWT in the TWT request frame.
  • One possible implementation method is to use the existing reserved bit (Reserved) in the TWT control domain as the exclusive TWT indication field. If the exclusive TWT indication field is set to 1, it can indicate that the TWT is an exclusive TWT. If the exclusive TWT If the indication field is set to 0, it can indicate that the TWT is a traditional single-user TWT.
  • Method 4 The STA reports the exclusive TWT enhanced method of its own service type to the AP.
  • the STA can inform the AP whether it has low-latency service transmission when applying for exclusive TWT to facilitate subsequent exclusive TWT parameters (such as start time, time accuracy, allocated bandwidth, etc.) negotiation.
  • Figure 9 is a schematic structural diagram of a TWT control domain provided by an embodiment of the present application. As shown in Figure 9, existing reserved bits (Reserved) can be used in the TWT control domain to indicate whether the ultra-low delay service flow exists. If it exists, the AP can determine that the TWT is an exclusive TWT.
  • the STA can inform the AP of the service flow type of its low-latency service when applying for exclusive TWT.
  • the corresponding relationship between the service flow type and the value can be as shown in Table 2.
  • the business flow type can have a corresponding relationship with the numerical value.
  • a value of 1 can indicate that the business flow type is augmented reality (AR)/virtual reality (VR)/extended reality.
  • XR augmented reality
  • a value of 2 indicates that the business flow type is virtual reality
  • a value of 3 indicates that the business flow type is industrial control
  • a value of 4 indicates that the business flow type is cloud computing
  • a value of 5 indicates that the business flow type is point-to-point.
  • Link a value of 6-8 can indicate reservation.
  • Figure 10 is a schematic structural diagram of a broadcast TWT parameter set domain provided by an embodiment of the present application.
  • the existing reserved bits can be used in the TWT control domain to indicate whether the ultra-low delay service flow exists. If it exists, a byte can be added to the broadcast TWT parameter set field, using To indicate the type of service flow, the service type can be obtained by looking up Table 2.
  • Figure 11 is a schematic structural diagram of a single-user TWT parameter set domain provided by an embodiment of the present application. As shown in Figure 11, a byte can be added to the single-user TWT parameter set field to indicate the type of service flow. The service type can be obtained by looking up Table 2.
  • Method 4 can not only instruct the transmission of low-latency services, but also inform the AP of the service type at the same time, so that the AP can reasonably arrange scheduling and resource allocation.
  • the AP sends a TWT reply frame including a TWT element to the STA. Accordingly, the STA receives a TWT reply frame including a TWT element from the AP.
  • the STA When the STA establishes an exclusive TWT with the AP, after receiving the TWT request frame from the STA, the AP can send a TWT response (TWT response) frame to the STA.
  • the TWT response frame can include a TWT element.
  • the exclusive TWT is established and the applied exclusive TWT takes effect.
  • the TWT reply frame can also be understood as a TWT response frame, a TWT reply frame, etc.
  • the AP sends the first frame indicating the silent element to the STA. Accordingly, the STA receives the first frame from the AP indicating the silent element.
  • the AP can determine the silent element based on the exclusive TWT information.
  • the silent element can be used to keep other STAs in this basic service set (basic service set, BBS) silent except the current STA.
  • BBS basic service set
  • the starting time of the silent period corresponding to the silent element is the same as the starting time of the exclusive TWT SP.
  • the frame structure of the silent element may be as shown in Table 3.
  • the Element ID field represents the identity of the element
  • the Length field represents the length of the element
  • the Quiet Count field represents the beacon interval and the next quiet interval.
  • the number of TBTTs between the current time indicates the number of beacon intervals between two quiet intervals
  • the Quiet Duration field indicates the duration of the quiet interval
  • the Quiet Offset represents the offset between the start time of the silence interval and the TBTT represented in the silence count.
  • the silence element can be carried in the first frame.
  • the first frame can be a beacon frame and/or a probe response frame.
  • the first frame can also be other frames capable of carrying the silence element function. frame, this application does not limit the type of the first frame.
  • the STA transmits with the AP based on the exclusive TWT information and the silent element.
  • the STA can compare the start time of the silence period indicated by the silence element with the start time of its own exclusive TWT SP. If the start times overlap at this time, the STA can ignore the silence element, and vice versa.
  • the length of the silent period can be 1 millisecond.
  • Other STAs in this BSS except this STA cannot understand the exclusive TWT element. At this time, the silent element corresponding to the exclusive TWT cannot be ignored. Therefore, at this time, the low-latency transmission of the STA applying to use the exclusive TWT can be effectively guaranteed. .
  • the embodiments of this application can realize exclusive TWT through exclusive TWT information and silent elements, and can effectively ensure the access and transmission of low-latency users.
  • an exclusive TWT can be provided.
  • the exclusive TWT can represent a type of TWT SP negotiated by the AP and the STA that is exclusive to only one STA.
  • the embodiments of this application also provide several ways to implement the exclusive TWT method. By using the STA to exclusively occupy the TWT SP, the service flow transmission with ultra-low delay and high throughput characteristics can be protected.
  • Embodiments of the present application can divide the communication device into functional modules according to the above method examples.
  • each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module.
  • the above integrated modules can be implemented in the form of hardware or software function modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical function division. In actual implementation, there may be other division methods.
  • FIG. 12 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • the communication device may be an STA, a module in the STA (for example, a chip or a processor), or a logic module or software that can realize all or part of the functions of the STA.
  • the communication device 1200 at least includes: a sending unit 1201, a receiving unit 1202 and a processing unit 1203; where:
  • Sending unit 1201 configured to send a TWT request frame to the AP, where the TWT request frame includes a TWT element, the TWT element includes exclusive TWT information, and the exclusive TWT information is used to indicate the STA’s exclusive TWT service time SP;
  • the receiving unit 1202 is configured to receive a TWT reply frame from the AP, where the TWT reply frame includes the TWT element;
  • the receiving unit 1202 is also configured to receive the first frame from the AP.
  • the first frame is used to indicate a silent element.
  • the silent element is used to allow the basic service set BSS except the STA. Other STAs remain silent, and the starting time of the silent period corresponding to the silent element is the same as the starting time of the exclusive TWT SP;
  • the processing unit 1203 is configured to transmit with the AP according to the exclusive TWT information and the silent element.
  • the first frame is a probe response frame or a beacon frame.
  • the exclusive TWT information is determined by the broadcast TWT suggestion value in the TWT element.
  • the broadcast TWT suggested value is 5.
  • said first frame includes said TWT element.
  • the TWT element includes a broadcast TWT identifier, and the broadcast TWT identifiers of different STAs are different.
  • the exclusive TWT information is carried in reserved bits in the broadcast TWT information subfield of the TWT element.
  • the exclusive TWT information is carried in reserved bits in the control field of the TWT element.
  • the TWT element carries indication information, and the indication information is used to indicate whether ultra-low delay service exists.
  • the TWT element when the indication information indicates that an ultra-low delay service exists, the TWT element further includes the service type of the ultra-low delay service.
  • FIG. 13 is a schematic structural diagram of another communication device provided by an embodiment of the present application.
  • the communication device may be an AP, a module in the AP (for example, a chip or a processor), or a logical module or software that can realize all or part of the AP functions.
  • the communication device 1300 at least includes: a receiving unit 1301, a sending unit 1302 and a determining unit 1303; where:
  • Receiving unit 1301 configured to receive a TWT request frame from an STA, where the TWT request frame includes a TWT element, the TWT element includes exclusive TWT information, and the exclusive TWT information is used to indicate the STA’s exclusive TWT service time SP;
  • Sending unit 1302 configured to send a TWT reply frame to the STA, where the TWT reply frame includes the TWT element;
  • the determining unit 1303 is configured to determine a silent element based on the exclusive TWT information.
  • the silent element is used to keep other STAs in the basic service set BSS except the STA silent.
  • the silent period corresponding to the silent element The starting time is the same as the starting time of the exclusive TWT SP;
  • the sending unit 1302 is also configured to send a first frame to the STA, where the first frame is used to indicate the silence element.
  • the first frame is a detection response frame or a beacon frame.
  • the exclusive TWT information is determined by the broadcast TWT suggestion value in the TWT element.
  • the broadcast TWT suggested value is 5.
  • said first frame includes said TWT element.
  • the TWT element includes a broadcast TWT identifier
  • the determining unit 1303 is also used to:
  • the broadcast TWT identifier is determined according to the exclusive TWT information, and the broadcast TWT identifiers of different STAs are different.
  • the exclusive TWT information is carried in reserved bits in the broadcast TWT information subfield of the TWT element.
  • the exclusive TWT information is carried in reserved bits in the control field of the TWT element.
  • the TWT element carries indication information, and the indication information is used to indicate whether ultra-low delay service exists.
  • the TWT element when the indication information indicates that an ultra-low delay service exists, the TWT element further includes the service type of the ultra-low delay service.
  • receiving unit 1301, sending unit 1302 and determining unit 1303 you may directly refer to the relevant description of the AP in the method embodiment shown in FIG. 6, and will not be described again here.
  • FIG. 14 is a schematic structural diagram of yet another communication device provided by an embodiment of the present application.
  • the device 1400 can include one or more processors 1401.
  • the processors 1401 can also be called processing units and can implement certain control functions.
  • the processor 1401 may be a general-purpose processor or a special-purpose processor, or the like.
  • the processor 1401 may also store instructions 1403, and the instructions 1403 may be executed by the processor, so that the device 1400 executes the method described in the above method embodiment.
  • the processor 1401 may include a transceiver unit for implementing receiving and transmitting functions.
  • the transceiver unit may be a transceiver circuit, an interface, an interface circuit, or a communication interface.
  • the transceiver circuits, interfaces or interface circuits used to implement the receiving and transmitting functions can be separate or integrated together.
  • the above-mentioned transceiver circuit, interface or interface circuit can be used for reading and writing codes/data, or the above-mentioned transceiver circuit, interface or interface circuit can be used for signal transmission or transfer.
  • the device 1400 may include a circuit, which may implement the functions of sending or receiving or communicating in the foregoing method embodiments.
  • the device 1400 may include one or more memories 1402, on which instructions 1404 may be stored, and the instructions may be executed on the processor, so that the device 1400 executes the above method embodiments. described method.
  • data may also be stored in the memory.
  • instructions and/or data can also be stored in the processor.
  • the processor and memory can be provided separately or integrated together. For example, the corresponding relationships described in the above method embodiments may be stored in the memory or in the processor.
  • the device 1400 may also include a transceiver 1405 and/or an antenna 1406.
  • the processor 1401 may be called a processing unit and controls the device 1400 .
  • the transceiver 1405 may be called a transceiver unit, a transceiver, a transceiver circuit, a transceiver device or a transceiver module, etc., and is used to implement transceiver functions.
  • the device 1400 in the embodiment of the present application can be used to perform the method described in Figure 6 in the embodiment of the present application.
  • the communication device 1400 can be applied to an STA, a module (for example, a chip or a processor) in the STA, or a logic module or software that can implement all or part of the STA functions.
  • the processor 1401 is used to control the processing unit 1203 to perform the operations performed in the above embodiments
  • the transceiver 1405 is used to perform the operations performed by the sending unit 1201 and the receiving unit 1202 in the above embodiments.
  • the transceiver 1405 is also used to send information to other communication devices in addition to the communication device.
  • the above-mentioned STA or modules within the STA can also be used to perform various methods performed by the STA in the above-mentioned method embodiment in Figure 6, which will not be described again.
  • the communication device 1400 can be applied to an AP, to a module (for example, a chip or processor) in the AP, or to a logic module or software that can implement all or part of the AP functions.
  • the processor 1401 is used to control the determination unit 1303 to perform the operations performed in the above embodiments
  • the transceiver 1405 is used to perform the operations performed by the receiving unit 1301 and the sending unit 1302 in the above embodiments.
  • the transceiver 1405 is also used to send information to other communication devices in addition to the communication device.
  • the above-mentioned AP or modules within the AP can also be used to perform various methods performed by the AP in the above-mentioned method embodiment in Figure 6, which will not be described again.
  • the processor and transceiver described in this application can be implemented in integrated circuits (ICs), analog ICs, radiofrequency interface chips (RFICs), mixed-signal ICs, application specific integrated circuits (ASICs), On printed circuit boards (PCB), electronic equipment, etc.
  • the processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal-oxide-semiconductor (NMOS), P-type Metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
  • CMOS complementary metal oxide semiconductor
  • NMOS N-type metal-oxide-semiconductor
  • PMOS P-type Metal oxide semiconductor
  • BJT bipolar junction transistor
  • BiCMOS bipolar CMOS
  • SiGe silicon germanium
  • GaAs gallium arsenide
  • the device described in the above embodiments may be a first terminal device or a second terminal device, but the scope of the device described in this application is not limited thereto, and the structure of the device may not be limited by FIG. 14 .
  • the device may be a stand-alone device or may be part of a larger device.
  • the device may be:
  • the IC set may also include a storage component for storing data and/or instructions;
  • Embodiments of the present application also provide a computer-readable storage medium on which a computer program is stored.
  • the program is executed by a processor, the STA-related processes in the communication method provided by the above method embodiments can be implemented.
  • Embodiments of the present application also provide a computer-readable storage medium on which a computer program is stored.
  • the program is executed by a processor, the AP-related processes in the communication method provided by the above method embodiments can be implemented.
  • Embodiments of the present application also provide a computer program product that, when run on a computer or processor, causes the computer or processor to perform one or more steps in any of the above communication methods. If each component module of the above-mentioned device is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in the computer-readable storage medium.
  • Embodiments of the present application also provide a chip system, including at least one processor and a communication interface.
  • the communication interface and the at least one processor are interconnected through lines.
  • the at least one processor is used to run computer programs or instructions to execute It includes some or all of the steps described in the method embodiment corresponding to Figure 6 above.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the embodiment of the present application also discloses a communication system, which includes an STA and an AP.
  • a communication system which includes an STA and an AP.
  • the memory mentioned in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories.
  • the non-volatile memory can be a hard disk drive (HDD), a solid-state drive (SSD), a read-only memory (ROM), a programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically erasable programmable read-only memory (electrically EEPROM, EEPROM) or flash memory.
  • Volatile memory can be random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • static random access memory static random access memory
  • dynamic RAM dynamic random access memory
  • synchronous dynamic random access memory synchronous dRAM, SDRAM
  • double data rate synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
  • enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
  • synchronous link dynamic random access memory direct rambus RAM, DR RAM
  • Memory is, but is not limited to, any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.
  • the memory in the embodiment of the present application can also be a circuit or any other device capable of realizing a storage function, used to store program instructions and/or data.
  • processors mentioned in the embodiments of this application may be a central processing unit (CPU), or other general-purpose processor, digital signal processor (DSP), or application-specific integrated circuit (application specific integrated circuit, ASIC), off-the-shelf programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • CPU central processing unit
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • a general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.
  • the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component
  • the memory storage module
  • the size of the sequence numbers of the above-mentioned processes does not mean the order of execution.
  • the execution order of each process should be determined by its functions and internal logic, and should not be used in the embodiments of the present application.
  • the implementation process constitutes any limitation.
  • the disclosed systems, devices and methods can be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or can be integrated into another system, or some features can be ignored, or not implemented.
  • the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application can be integrated into one processing unit, each unit can exist physically alone, or two or more units can be integrated into one unit.
  • the computer software product is stored in a storage medium and includes a number of instructions. It is used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application.
  • the aforementioned storage media include: U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk and other media that can store program codes.
  • the modules/units in the device of the embodiment of the present application can be merged, divided and deleted according to actual needs.

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Abstract

本申请实施例涉及通信领域，提供一种通信方法、装置及计算机可读存储介质。可应用于基于超带宽UWB的无线个人局域网系统，包括802.15系列协议，如802.15.4a协议、802.15.4z协议或802.15.4ab协议等。可支持IEEE802.11ax下一代Wi-Fi协议，如802.11be，Wi-Fi7或EHT，再如802.11be下一代，Wi-Fi8等802.11系列协议的无线局域网系统，感知系统等。方法包括向AP发送包括用于指示STA独占TWT SP的独占TWT信息的TWT请求帧；接收来自AP用于指示静默元素的第一帧；根据独占TWT信息和静默元素与AP进行传输。本申请实施例可以降低延时。

Description

一种通信方法、装置及计算机可读存储介质
本申请要求于2022年06月29日提交中国国家知识产权局、申请号为202210751776.1、申请名称为“一种通信方法、装置及计算机可读存储介质”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及无线通信技术领域，尤其涉及一种通信方法、装置及计算机可读存储介质。
背景技术
随着无线局域网(wireless local area network，WLAN)通信标准的发展，WLAN通信标准从IEEE 802.11a/g开始，发展到现今的IEEE 802.11ax(Wi-Fi联盟称为Wi-Fi 6，又称为高效率无线(high-efficiency wireless，HEW)标准)和IEEE 802.11be(Wi-Fi联盟称为Wi-Fi 7，又称为极高吞吐率(extremely high throughput，EHT)标准)，其允许传输的带宽和空时流数也逐渐发生变化，从开始的20MHz带宽发展到现今的160MHz，甚至更大的带宽，如240MHz/320MHz。WLAN系统通过使用更大的带宽以期望获取更高的传输速率。
目标唤醒时间(target wake time，TWT)是Wi-Fi6定义的一种用于节能的技术，指的是站点(station，STA)和接入点(access point，AP)可以约定好服务时间(service period，SP)，在该服务时间保持活跃状态并进行通信，从而可以在服务时间以外的时间进行休眠，以达到节能的目的。根据约定服务时间方法的不同，TWT分可以为单播(individual)TWT和广播(broadcast)TWT。
目前，越来越多的无线网络应用和服务对延时特性提出了较为严苛的要求，例如在线游戏、虚拟现实、工业现场等。因此，如何有效保障超低延时高吞吐量业务的STA进行接入传输成为了亟待解决的问题。
发明内容
本申请实施例提供了一种通信方法、装置及计算机可读存储介质，可以保障具有超低延时高吞吐量业务的STA能够接入传输，降低延时。
第一方面，本申请实施例提供一种通信方法，该通信方法可以应用于STA，也可以应用于STA中的模块(例如，芯片或处理器)，还可以应用于能实现全部或部分STA功能的逻辑模块或软件。下面以执行主体是STA为例进行描述。该通信方法包括：STA向AP发送TWT请求帧，该TWT请求帧包括TWT元素，所述TWT元素包括独占TWT信息，独占TWT信息用于指示STA独占TWT SP；STA接收来自AP的TWT回复帧，该TWT回复帧包括TWT元素；STA接收来自AP的第一帧，第一帧用于指示静默元素，该静默元素用于让本基本服务集(basic service set，BSS)中除STA之外的其它STA保持静默，该静默元素对应的静默时间段的起始时间与独占TWT SP的起始时间相同；STA根据独占TWT信息和静默元素与AP进行传输。
本申请实施例可以通过独占TWT信息和静默元素实现独占TWT，能够有效地保障低延时用户的接入与传输。具体地可以提供一种独占TWT，独占TWT可以表示AP和STA协商的由唯一一个STA独占的一类TWT SP，通过唯一一个STA独占TWT SP，可以保护具有超低延时高吞吐特性的业务流传输。
一种可能的实现方式，第一帧为探测响应(probe response)帧或者信标(beacon)帧。
在本申请提供的方案中，静默元素可以携带于探测响应帧或者信标帧中，也可以携带于其它能够实现该功能的帧中，本申请实施例对帧的类型不作限定。
一种可能的实现方式，独占TWT信息由TWT元素中的广播TWT建议值确定。
在本申请提供的方案中，可以基于广播TWT推荐域实现独占TWT方法。独占TWT是一种特殊的广播TWT，在STA与AP进行独占TWT建立时，可以选择一个新的广播TWT建议值(Broadcast TWT Recommendation field value)与原有TWT类型区分。实现独占TWT方法能够保障申请独占TWT的用户接入，进而保护具有超低延时高吞吐特性的业务流传输。
一种可能的实现方式，广播TWT建议值为5。
在本申请提供的方案中，在STA与AP进行独占TWT建立时，可以选择一个新的广播TWT建议值与原有TWT类型区分，例如可以将广播TWT建议值设置为5，需要说明的是，本申请实施例仅以5作为 示例进行举例说明，广播TWT建议值还可以是其它数值，例如6或7等。
一种可能的实现方式，第一帧包括TWT元素。
在本申请提供的方案中，AP可以在第一帧中广播包括独占TWT信息的TWT元素和静默元素，以使STA可以通过独占TWT信息和静默元素实现独占TWT，能够有效地保障低延时用户的接入与传输。
一种可能的实现方式，TWT元素包括广播TWT标识，不同STA的所述广播TWT标识不同。
在本申请提供的方案中，由于是STA独占TWT SP，因此在信标帧广播独占TWT所对应的TWT元素时，可以通过TWT元素中的不同广播TWT标识来区分不同的独占STA，因此可以实现STA独占TWT SP，使得本BSS中除该STA之外的其它STA保持静默。因此可以保障申请独占TWT的用户接入，进而保护具有超低延时高吞吐特性的业务流传输。
一种可能的实现方式，独占TWT信息携带于TWT元素中的广播TWT信息子域中的预留位中。
在本申请提供的方案中，可以基于TWT元素中的广播TWT信息子域中的预留位作为独占TWT指示域，以实现独占TWT方法。实现独占TWT方法能够保障申请独占TWT的用户接入，进而保护具有超低延时高吞吐特性的业务流传输。
一种可能的实现方式，独占TWT信息携带于TWT元素中的控制域中的预留位中。
在本申请提供的方案中，对于单播TWT或广播TWT，可以基于TWT元素中的控制域中的预留位作为独占TWT指示域，以实现独占TWT方法。实现独占TWT方法能够保障申请独占TWT的用户接入，进而保护具有超低延时高吞吐特性的业务流传输。
一种可能的实现方式，TWT元素中携带指示信息，指示信息用于指示是否存在超低延时业务。
在本申请提供的方案中，为了更好地保障独占STA低延时业务的传输，可以有一种增强的指示方式。即由于不同的业务流对系统参数的设置与协商有一定影响，STA需要申请独占TWT时可以向AP告知自身是否存在超低延时业务，用以后续的独占TWT参数(例如起始时间、时间精度、分配带宽等)协商过程，以便AP合理安排调度与资源分配。
一种可能的实现方式，在指示信息指示存在超低延时业务的情况下，TWT元素还包括超低延时业务的业务类型。
在本申请提供的方案中，为了更好地保障独占STA低延时业务的传输，可以有一种增强的指示方式。即由于不同的业务流对系统参数的设置与协商有一定影响，STA需要申请独占TWT时不仅可以向AP告知自身是否存在超低延时业务，还可以告知业务类型，用以后续的独占TWT参数(例如起始时间、时间精度、分配带宽等)协商过程，以便AP合理安排调度与资源分配。
第二方面，本申请实施例提供一种通信方法，该通信方法可以应用于AP，也可以应用于AP中的模块(例如，芯片或处理器)，还可以应用于能实现全部或部分AP功能的逻辑模块或软件。下面以执行主体是AP为例进行描述。该通信方法包括：AP接收来自STA的TWT请求帧，该TWT请求帧包括TWT元素，TWT元素包括独占TWT信息，独占TWT信息用于指示STA独占TWT SP；AP向STA发送TWT回复帧，TWT回复帧包括TWT元素；AP根据独占TWT信息确定静默元素，静默元素用于让本BSS中除所述STA之外的其它STA保持静默，静默元素对应的静默时间段的起始时间与独占TWT SP的起始时间相同；向STA发送第一帧，第一帧用于指示上述静默元素。
本申请实施例可以通过独占TWT信息和静默元素实现独占TWT，能够有效地保障低延时用户的接入与传输。具体地可以提供一种独占TWT，独占TWT可以表示AP和STA协商的由唯一一个STA独占的一类TWT SP，通过唯一一个STA独占TWT SP，可以保护具有超低延时高吞吐特性的业务流传输。
应理解，第二方面的执行主体可以为AP，第二方面的具体内容与第一方面的内容对应，第二方面相应特征以及达到的有益效果可以参考第一方面的描述，为避免重复，此处适当省略详细描述。
一种可能的实现方式，第一帧为探测响应帧或者信标帧。
一种可能的实现方式，独占TWT信息由TWT元素中的广播TWT建议值确定。
一种可能的实现方式，广播TWT建议值为5。
一种可能的实现方式，第一帧包括TWT元素。
一种可能的实现方式，TWT元素包括广播TWT标识，方法还包括：AP根据独占TWT信息确定广播TWT标识，不同STA的广播TWT标识不同。
一种可能的实现方式，独占TWT信息携带于TWT元素中的广播TWT信息子域中的预留位中。
一种可能的实现方式，所述独占TWT信息携带于所述TWT元素中的控制域中的预留位中。
一种可能的实现方式，所述TWT元素中携带指示信息，指示信息用于指示是否存在超低延时业务。
一种可能的实现方式，在所述指示信息指示存在超低延时业务的情况下，所述TWT元素还包括所述超低延时业务的业务类型。
第三方面，本申请实施例提供一种通信装置。该通信装置可以应用于STA，也可以应用于STA中的模块(例如，芯片或处理器)，还可以应用于能实现全部或部分STA功能的逻辑模块或软件。
有益效果可以参见第一方面的描述，此处不再赘述。所述通信装置具有实现上述第一方面的方法实例中行为的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。
一种可能的实现方式，该通信装置包括：
发送单元，用于向AP发送TWT请求帧，所述TWT请求帧包括TWT元素，所述TWT元素包括独占TWT信息，所述独占TWT信息用于指示所述STA独占TWT服务时间SP；
接收单元，用于接收来自所述AP的TWT回复帧，所述TWT回复帧包括所述TWT元素；
所述接收单元，还用于接收来自所述AP的第一帧，所述第一帧用于指示静默元素，所述静默元素用于让本基本服务集BSS中除所述STA之外的其它STA保持静默，所述静默元素对应的静默时间段的起始时间与所述独占TWT SP的起始时间相同；
处理单元，用于根据所述独占TWT信息和所述静默元素与所述AP进行传输。
一种可能的实现方式，第一帧为探测响应帧或者信标帧。
一种可能的实现方式，所述独占TWT信息由所述TWT元素中的广播TWT建议值确定。
一种可能的实现方式，所述广播TWT建议值为5。
一种可能的实现方式，所述第一帧包括所述TWT元素。
一种可能的实现方式，所述TWT元素包括广播TWT标识，不同STA的所述广播TWT标识不同。
一种可能的实现方式，所述独占TWT信息携带于所述TWT元素中的广播TWT信息子域中的预留位中。
一种可能的实现方式，所述独占TWT信息携带于所述TWT元素中的控制域中的预留位中。
一种可能的实现方式，所述TWT元素中携带指示信息，所述指示信息用于指示是否存在超低延时业务。
一种可能的实现方式，在所述指示信息指示存在超低延时业务的情况下，所述TWT元素还包括所述超低延时业务的业务类型。
第四方面，本申请实施例提供一种通信装置。该通信装置可以应用于AP，也可以应用于AP中的模块(例如，芯片或处理器)，还可以应用于能实现全部或部分AP功能的逻辑模块或软件。
有益效果可以参见第二方面的描述，此处不再赘述。所述通信装置具有实现上述第二方面的方法实例中行为的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。
一种可能的实现方式，该通信装置包括：
接收单元，用于接收来自STA的TWT请求帧，所述TWT请求帧包括TWT元素，所述TWT元素包括独占TWT信息，所述独占TWT信息用于指示所述STA独占TWT服务时间SP；
发送单元，用于向所述STA发送TWT回复帧，所述TWT回复帧包括所述TWT元素；
确定单元，用于根据所述独占TWT信息确定静默元素，所述静默元素用于让本基本服务集BSS中除所述STA之外的其它STA保持静默，所述静默元素对应的静默时间段的起始时间与所述独占TWT SP的起始时间相同；
所述发送单元，还用于向所述STA发送第一帧，所述第一帧用于指示所述静默元素。
一种可能的实现方式，所述第一帧为探测响应帧或者信标帧。
一种可能的实现方式，所述独占TWT信息由所述TWT元素中的广播TWT建议值确定。
一种可能的实现方式，所述广播TWT建议值为5。
一种可能的实现方式，所述第一帧包括所述TWT元素。
一种可能的实现方式，所述TWT元素包括广播TWT标识，所述确定单元还用于：
根据所述独占TWT信息确定所述广播TWT标识，不同STA的所述广播TWT标识不同。
一种可能的实现方式，所述独占TWT信息携带于所述TWT元素中的广播TWT信息子域中的预留位中。
一种可能的实现方式，所述独占TWT信息携带于所述TWT元素中的控制域中的预留位中。
一种可能的实现方式，所述TWT元素中携带指示信息，所述指示信息用于指示是否存在超低延时业务。
一种可能的实现方式，在所述指示信息指示存在超低延时业务的情况下，所述TWT元素还包括所述超低延时业务的业务类型。
第五方面，提供了一种通信装置，该通信装置可以为上述方法实施例中的STA，或者为设置在STA中的芯片或处理器。该通信装置可以包括处理器，处理器与存储器耦合，存储器用于存储程序或指令，当程序或指令被处理器执行时，使通信装置执行上述方法实施例中由STA、或STA中的芯片或处理器所执行的方法。
第六方面，提供了一种通信装置，该通信装置可以为上述方法实施例中的AP，或者为设置在AP中的芯片或处理器。该通信装置可以包括处理器，处理器与存储器耦合，存储器用于存储程序或指令，当程序或指令被处理器执行时，使通信装置执行上述方法实施例中由AP、或AP中的芯片或处理器所执行的方法。
第七方面，本申请实施例提供一种计算机可读存储介质，该计算机可读存储介质中存储有指令，当该指令在计算机上运行时，使得计算机执行上述第一方面或第一方面任一可能的实现方式的方法。
第八方面，本申请实施例提供一种计算机可读存储介质，该计算机可读存储介质中存储有指令，当该指令在计算机上运行时，使得计算机执行上述第二方面或第二方面任一可能的实现方式的方法。
第九方面，本申请实施例提供一种包含程序指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第一方面或第一方面任一可能的实现方式的方法。
第十方面，本申请实施例提供一种包含程序指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第二方面或第二方面任一可能的实现方式的方法。
第十一方面，本申请实施例提供了芯片系统，该芯片系统包括处理器，用于实现上述各方法中的功能。在一种可能的实现中，该芯片系统还可以包括存储器，用于保存程序指令和/或数据。该芯片系统可以由芯片构成，也可以包含芯片和其他分立器件。
第十二方面，本申请实施例提供一种通信系统，所述通信系统包括上述第一方面所提供的STA和上述第二方面所提供的AP。
附图说明
为了更清楚地说明本申请实施例，下面将对实施例中所需要使用的附图作简单的介绍。显而易见地，对于本领域普通技术人员而言，在不付出创造性劳动的前提下，还可以根据这些附图获取其它的附图。
图1是本申请实施例提供的一种网络架构的示意图；
图2是现有技术中的一种单用户TWT服务阶段的实现方式的示意图；
图3是现有技术中的一种单用户TWT元素的帧结构示意图；
图4是现有技术中的一种r-TWT服务阶段的实现方式的示意图；
图5是现有技术中的一种r-TWT元素的帧结构示意图；
图6是本申请实施例提供的一种通信方法的流程交互图；
图7是本申请实施例提供的一种广播TWT信息子域的结构示意图；
图8是本申请实施例提供的一种TWT元素中的控制域的结构示意图；
图9是本申请实施例提供的一种TWT控制域的结构示意图；
图10是本申请实施例提供的一种广播TWT参数集合域的结构示意图；
图11是本申请实施例提供的一种单用户TWT参数集合域的结构示意图；
图12是本申请实施例提供的一种通信装置的结构示意图；
图13是本申请实施例提供的另一种通信装置的结构示意图；
图14是本申请实施例提供的又一种通信装置的结构示意图。
具体实施方式
本申请实施例描述的场景是为了更加清楚地说明本申请实施例的技术方案,并不构成对于本申请实施例提供的技术方案的限定。
本申请实施例提出了一种通信方法，可以应用于无线通信系统，比如蜂窝网络或无线局域网系统中。请参阅图1，图1是本申请实施例提供的一种网络架构的示意图。如图1所示，网络架构100包括接入点AP101、一个或多个站点(STA102～STA103)。其中接入点和站点支持无线局域网(wireless local access network，WLAN)通信协议。该通信协议可以包括IEEE 802.11be(或称为Wi-Fi 7，EHT协议)，还可以包括IEEE 802.11n、IEEE 802.11ax、IEEE 802.11ac等协议，其中802.11n标准的名称又可以称为高吞吐率(high throughput，HT)，802.11ac标准的名称又可以称为非常高吞吐率(very high throughput，VHT)，802.11ax标准的名称又可以称为高效(high efficient，HE)，802.11be标准的名称又可以称为极高吞吐率(extremely high throughput，EHT)。当然，随着通信技术的不断演进和发展，该通信协议还可以包括IEEE802.11be的下一代协议等。以WLAN为例，该实现本申请方法的装置可以是WLAN中的接入点或站点，或者是，安装在接入点或站点中的芯片或处理系统。
接入点(例如，AP101)是一种具有无线通信功能的装置，支持采用WLAN协议进行通信，具有与WLAN网络中其他设备(例如站点或其他接入点)通信的功能，当然，还可以具有与其他设备通信的功能。在WLAN系统中，接入点可以称为接入点站点(AP STA)。该装置可以为一个整机的设备，还可以是安装在整机设备中的芯片或处理系统等，安装这些芯片或处理系统的设备可以在芯片或处理系统的控制下，实现本申请实施例的方法和功能。本申请实施例中的AP可以是为STA提供服务的装置，可以支持802.11系列协议。例如，AP可以为通信服务器、路由器、交换机、网桥等通信实体；AP可以包括各种形式的宏基站，微基站，中继站等，当然AP还可以为这些各种形式的设备中的芯片和处理系统，从而实现本申请实施例的方法和功能。
站点是一种具有无线通信功能的装置，支持采用WLAN协议进行通信，具有与WLAN网络中的其他站点或接入点通信的能力。在WLAN系统中，站点可以称为非接入点站点(non-access point station，non-AP STA)。例如，STA是允许用户与AP通信进而与WLAN通信的任何用户通信设备，该装置可以为一个整机的设备，还可以是安装在整机设备中的芯片或处理系统等，安装这些芯片或处理系统的设备可以在芯片或处理系统的控制下，实现本申请实施例的方法和功能。例如，STA可以为平板电脑、桌面型、膝上型、笔记本电脑、超级移动个人计算机(ultra-mobile personal computer，UMPC)、手持计算机、上网本、个人数字助理(personal digital assistant，PDA)、手机等可以联网的用户设备，或物联网中的物联网节点，或车联网中的车载通信装置或，娱乐设备，游戏设备或系统，全球定位系统设备等，STA还可以为上述这些终端中的芯片和处理系统。
WLAN系统可以提供高速率低延时的传输，随着WLAN应用场景的不断演进，WLAN系统将会应用于更多场景或产业中，例如，应用于物联网产业，应用于车联网产业或应用于银行业，应用于企业办公，体育场馆展馆，音乐厅，酒店客房宿舍病房，教室，商超，广场，街道，生成车间和仓储等。当然，支持WLAN通信的设备(例如接入点或站点)可以是智慧城市中的传感器节点(例如智能水表，智能电表，智能空气检测节点)，智慧家居中的智能设备(例如智能摄像头，投影仪，显示屏，电视机，音响，电冰箱，洗衣机等)，物联网中的节点，娱乐终端(例如AR，VR等可穿戴设备)，智能办公中智能设备(例如，打印机，投影仪，扩音器，音响等)，车联网中的车联网设备，日常生活场景中的基础设施(例如自动售货机，商超的自助导航台，自助收银设备，自助点餐机等)，以及大型体育以及音乐场馆的设备等。本申请实施例中对于STA和AP的具体形式不做特殊限制，在此仅是示例性说明。
为了便于理解本申请，首先在此介绍本申请实施例涉及的相关技术知识。本申请的实施方式部分使用的术语仅用于对本申请的具体实施例进行解释，而非旨在限定本申请。
1、TWT
TWT是Wi-Fi6定义的一种用于节能的技术。核心思想是通过设置一些周期性的时间段，使得某些设备只需要在这些TWT服务阶段(service period，TWT SP)中保持活跃状态，在其他的时间可以进行休眠，从而达到节能的目的。
TWT分为单播TWT(individual TWT)和广播TWT(broadcast TWT)，在单播TWT中，每个STA可以单独与AP建立一个TWT协议，因此，每个STA可以有自己的活跃时间段和休眠时间段；在广播TWT中， AP可以为一组STA建立一个公用的TWT协议，多个STA在相同的活跃时间段进行工作，在其他时间段进行休眠。
单播TWT：单播TWT是指TWT请求站点(requesting)向TWT应答站点(responding)发送TWT请求消息，请求设定一个醒来的时间。应答站点在接收到TWT请求消息之后向请求站点发送TWT应答消息，交互成功后，请求站点与应答站点之间就建立了一个TWT协议。当TWT协议达成后，请求站点与应答站点都应该在约定好的时间段保持活跃状态，以便进行数据的收发。在上述时间段之外，站点可进行休眠以达到节能的目的。通常来说是由STA向AP发送TWT协议建立请求，即STA为请求站点，AP为应答站点，当然AP也可以向站点发起TWT协议建立请求。TWT协议建立后，约定好的活跃时间段称为TWT服务阶段。
广播TWT：与单播TWT不同，广播TWT提供了一种“批量管理”机制，AP可以与多个STA建立一系列周期性出现的TWT服务阶段。在TWT服务阶段中，上述多个STA需要保持活跃状态，从而与AP进行通信。
AP可以在信标帧(beacon帧)中携带一个或多个广播TWT的信息，每个广播TWT是由一个广播TWT标识符和AP的介质访问控制(media access control，MAC)地址共同表示的。STA在收到信标帧后，如果有加入广播TWT的意愿，可以向AP发送广播TWT建立请求消息，从而加入广播TWT。在广播TWT建立时，需要指定广播TWT标识符来请求加入某个特定的广播TWT。加入广播TWT之后，STA可以按照TWT参数集所指示的服务阶段唤醒，从而与AP进行通信。需要说明的是，若STA支持广播TWT，但没有显式地加入某个广播TWT ID，则默认参与广播TWT ID＝0的广播TWT。
与单播TWT类似，广播TWT的参数集也指定了TWT服务阶段出现的周期以及每个TWT服务阶段的持续时长。除此之外，广播TWT参数还包括广播TWT的生命周期，它以信标帧间隔为单位，表示所建立的广播TWT的持续时长。
2、超低延时通信
随着无线网络的发展以及无线局域网(wireless local area network，WLAN)技术的不断升级，越来越多的应用流量由Wi-Fi承载。另一方面，层出不穷的移动应用对WLAN的延时性能也要求越来越高。例如无线视频、语音、游戏、增强现实(augmented reality，AR)/虚拟现实(virtual reality，VR)等应用对通信的延时就有着很高的要求。
为了尽可能地满足不同类型的流量需求，WLAN需要将不同的业务进行优先级划分。例如，WLAN在信道竞争接入过程中每个设备存在四个不同的接入等级，通过不同的竞争参数实现传输优先级划分；每个接入等级可以包括两个业务标识来对应两种不同的业务。通常，低延时业务的数据包是周期性产生的。
首先，为了便于理解本发明实施例，进一步分析并提出本申请所具体要解决的技术问题。目前，关于超低延时高吞吐量业务的STA的接入传输的实现包括多种技术方案，以下示例性的列举如下两种，其中，
方案一：基于单用户TWT
单用户目标唤醒时间(individual target wakeup time，individual TWT)是在IEEE 802.11ax中提出的一种省能机制。请参阅图2，图2是现有技术中的一种单用户TWT服务阶段的实现方式的示意图。如图2所示，在802.11ax标准下，STA可以采用TWT机制与AP协商一个数据发送的时间，具体地，STA向AP发送TWT请求帧，AP向STA发送TWT回复帧。AP向STA发送信标帧指示单用户TWT SP起始时间，当单用户TWT建立后，该STA只需在协商的时间点醒来，等待AP调度传输即可。如AP向STA发送基本触发帧，单用户TWT SP，STA和AP开始传输数据(例如STA向AP发送数据帧，AP向STA发送确认帧)。
STA与AP协商的参数可以在单用户TWT元素结构图中。例如请参阅图3，图3是现有技术中的一种单用户TWT元素的帧结构示意图。如图3所示，TWT元素可以包括元素标识(element ID)字段、长度(length)字段、控制(control)字段、TWT参数信息(TWT parameter information)字段。其中，控制(control)域字段可以包括空数据P PDU分页指示(NDP paging indicator)子字段、响应者的省能状态(responder PM mode)子字段、协商类型(negotiation type)子字段、禁用TWT信息帧(TWT information frame disabled)子字段、苏醒时间单元(wake duration unit)子字段、链路ID位图存在指示(link ID bitmap present)子字段和预留(reserved)子字段。TWT参数信息(TWT parameter information)字段可以包括请求类型(request type)子字段、目标唤醒时间(target wake time)子字段、TWT分组(TWT group assignment)子字段、名义最小TWT唤醒持续时长(nominal minimum TWT wake duration)子字段、TWT唤醒间隔尾数(TWT wake interval mantissa)子字段、TWT信道(TWT channel)子字段、空数据包分页(可选)(NDP paging(optional))子字段、链路ID位图(link ID bitmap)子字段。
该方案一的缺点：方案一仅让STA与AP协商传输的时间，但在其TWT服务期间会有其它的STA接入传输，因此不能有效保障超低延时高吞吐量业务的STA进行接入传输。
方案二：基于r-TWT
限定目标唤醒时间(restricted target wakeup time，r-TWT)是基于IEEE 802.11ax已有的广播TWT(broadcast TWT)衍生出的一种新的保障低延时业务的机制。请参阅图4，图4是现有技术中的一种r-TWT服务阶段的实现方式的示意图。如图4所示，在802.11be标准下，non-AP EHT STA(以下简称EHT STA)存在许多实时应用(real time applications)，这些应用的流量有着非常严格的延时要求(stringent latency requirements)，基于此提出了r-TWT机制，该机制指出AP通过信标(Beacon)帧或者探测响应(Probe Response)帧广播一个或者多个r-TWT服务阶段(Service Period，SP)。当该BSS内的EHT STA收到AP广播出来的任意一个r-TWT SP信息后，如果该STA的dot11Restricted TWT Option Implemented设为true，那么该EHT STA在r-TWT SP开始时刻前结束自己的传输机会(Transmission Opportunity，TXOP)。此外，AP可以在信标(Beacon)或者(Probe Response)帧中设置与r-TWT SP起始时间对齐的静默间隔(Quiet Interval)，时长可以为1毫秒(ms)。要求EHT STA可以忽略掉上述静默间隔，进而在r-TWT SP开始之后竞争信道，其中，EHT STA可以属于本r-TWT SP群组(通过Broadcast TWT ID来分组)，也可以不属于本r-TWT SP群组。其他的STA需要根据静默间隔来保持静默，这样会减少该BSS内竞争信道的STA个数，增大有低延时业务的EHT STA拿到信道的概率。
r-TWT信息是在TWT元素域中指示的，请参阅图5，图5是现有技术中的一种r-TWT元素的帧结构示意图。如图5的(a)所示，其广播目标唤醒时间信息子域中包含一个比特的特定TWT流量信息子域存在指示子域(restricted TWT traffic info present)，该比特取值1代表TWT元素域含有如图5的(b)所示的r-TWT业务信息子域，取0代表TWT元素域不包含如图5的(b)所示的r-TWT业务信息子域。广播TWT标识(broadcast TWT ID)子域表示TWT群组的标识号。
该方案二的缺点：方案二可以为了保障低延时业务可以通过静默元素限制本BSS内部的其它non-EHT STA的信道接入，但还是允许BSS外部的其它EHT STA的信道接入，因此不能有效保障超低延时高吞吐量业务的STA进行接入传输。
基于不能有效保障超低延时高吞吐量业务的STA进行接入传输，本申请实施例提供一种通信方法，可以通过一个STA独占一类TWT SP(独占TWT)来有效保障超低延时高吞吐量业务的STA进行接入传输，降低延时。
请参阅图6，图6是本申请实施例提供的一种通信方法的流程交互图。图6中以AP和STA作为该交互示意的执行主体为例来示意该方法，但本申请并不限制该交互示意的执行主体。例如，图6中的AP也可以是支持该AP实现该方法的芯片、芯片系统、或处理器，还可以是能实现全部或部分AP功能的逻辑模块或软件；图6中的STA也可以是支持该STA实现该方法的芯片、芯片系统、或处理器，还可以是能实现全部或部分STA功能的逻辑模块或软件。如图6所示，该通信方法包括但不限于以下步骤。
S601、STA向AP发送包括TWT元素的TWT请求帧，TWT元素包括独占TWT信息。相应地，AP接收来自STA的包括TWT元素的TWT请求帧。
STA与AP进行独占TWT建立时，STA可以向AP发送TWT请求帧，该TWT请求帧中可以包括TWT元素，TWT元素可以包括独占TWT信息。该STA可以理解为是申请使用独占TWT的STA。
独占TWT(Exclusive Target Wakeup Time，Exclusive TWT)，可以理解为，表示AP和STA协商的由唯一一个STA独占的一类TWT SP。
STA可以通过独占TWT信息实现独占TWT SP，实现方式可以满足以下任一：
方式一、基于广播TWT推荐域且在信标帧广播对应TWT元素的独占TWT方法。
独占TWT是一种特殊的广播TWT。STA与AP进行独占TWT建立时，可以选择一个新的(即以前没有使用过的值)广播TWT建议值(broadcast TWT recommendation field value)与原有TWT类型区分，例如，如表1所示，可以将广播TWT建议值设置为5。
表1在广播TWT元素中的广播TWT建议值

需要说明的是，表1仅以将广播TWT建议值设置为5为例进行举例说明，或者，广播TWT建议值还可以设置为6或7等。本申请实施例对广播TWT建议值的大小不作限定。
进一步，AP可以在信标帧广播该独占TWT所对应的TWT元素。TWT元素包括广播TWT标识，因此不同的STA对应的广播TWT标识可以不同，以区分不同的STA，从而可以保证唯一一个STA独占TWT。
方式二、基于r-TWT且在信标帧不广播对应TWT元素的独占TWT方法。
当具有超低延时以及高吞吐业务类型的STA申请使用独占TWT时，可以在TWT建立请求帧(TWT Setup Frame)中告知AP该TWT为独占TWT，在TWT建立请求帧中使用1比特预留位指示其是一个独占TWT，或者采用新的广播TWT建议值，其可能的实现方式如下几种：
一种可能的实现方式，请参阅图7，图7是本申请实施例提供的一种广播TWT信息子域的结构示意图。如图7所示，广播TWT建议值(Broadcast TWT Recommendation field value)取值为4，采用广播TWT信息子域中的现有预留位作为独占TWT指示域，当独占TWT域置1时，则代表该TWT为独占TWT，反之则是传统的r-TWT。
进一步，AP可以在信标帧中不广播包括独占TWT信息的TWT元素。需要说明的是，由于在信标帧中不广播包括独占TWT信息的TWT元素，因此该字段可以在独占TWT建立的协商过程中有效，在非建立与协商过程中所携带的独占元素中，该字段可以置为Reserved，不表示任何含义。
一种可能的实现方式，请参阅图8，图8是本申请实施例提供的一种TWT元素中的控制域的结构示意图。如图8所示，广播TWT建议值(Broadcast TWT Recommendation field value)取值为4，在控制域(Control Field)中可以使用现有的预留位(Reserved)作为独占TWT指示域指示是否存在超低延时业务流，当它置为1时，可以表明该TWT为独占TWT，反之则是传统的r-TWT。
进一步，AP可以在信标帧中不广播包括独占TWT信息的TWT元素。需要说明的是，由于在信标帧中不广播包括独占TWT信息的TWT元素，因此该字段可以在独占TWT建立的协商过程中有效，在非建立与协商过程中所携带的独占元素中，该字段可以置为Reserved，不表示任何含义。
一种可能的实现方式，采用新的广播TWT元素中的广播TWT建议值，如表1所示，可以将广播TWT建议值设置为5，或者如表2所示，广播TWT建议值还可以设置为6，或者如表3所示，广播TWT建议值还可以设置为7等。本申请实施例对广播TWT建议值的大小不作限定。
进一步，AP可以在信标帧中不广播包括独占TWT信息的TWT元素。
TWT元素包括广播TWT标识，由于AP在信标帧中不广播包括独占TWT信息的TWT元素，因此不同的STA对应的广播TWT标识可以相同也可以不同，进而区分不同的STA，从而可以保证唯一一个STA独占TWT。
方式三、基于单用户TWT(individual TWT)的独占TWT方法。
如图8所示，当STA申请低延时单用户TWT时，需要在TWT请求帧中指示是否为独占TWT。一种可能的实现方式，在TWT控制域中可以使用现有的预留位(Reserved)作为独占TWT指示域指示，若独占TWT指示域置为1，可以表明该TWT为独占TWT，若独占TWT指示域置为0，则可以表明该TWT是一个传统的单用户TWT。
方式四、STA向AP汇报自身业务类型的独占TWT增强型方法。
在上述方式一～方式三的基础上，为了更好地保障STA低延时业务传输，还可以有一种增强的指示方式。由于不同的业务流对系统参数的设置与协商有一定影响，STA可以在申请独占TWT时向AP告知自身是否存在低延时业务的传输，以方便后续的独占TWT参数(例如起始时间、时间精度、分配带宽等)协商。请参阅图9，图9是本申请实施例提供的一种TWT控制域的结构示意图。如图9所示，在TWT控制域中可以使用现有的预留位(Reserved)指示超低延时业务流是否存在。若存在，AP可以确定该TWT为独占TWT。
进一步地，STA可以在申请独占TWT时向AP告知自身低延时业务的业务流类型，示例性地，业务流类型与值的对应关系可以如表2所示。
表2业务流类型指示
如表2所示，业务流类型可以与数值有对应关系，例如数值为1可以表示业务流类型为增强现实(augmented reality，AR)/虚拟现实(virtual reality，VR)/拓展现实(extended reality，XR)，数值为2可以表示业务流类型为虚拟实境，数值为3可以表示业务流类型为工业控制，数值为4可以表示业务流类型为云计算，数值为5可以表示业务流类型为点对点链路，数值为6-8可以表示预留。
一种可能的实现方式，请参阅图10，图10是本申请实施例提供的一种广播TWT参数集合域的结构示意图。如图10所示，在TWT控制域中可以使用现有的预留位(Reserved)指示超低延时业务流是否存在，若是存在，则可以在广播TWT参数集合域中增加一个字节，用于指示业务流的类型，通过查找表2可以获知业务类型。
一种可能的实现方式，请参阅图11，图11是本申请实施例提供的一种单用户TWT参数集合域的结构示意图。如图11所示，可以在单用户TWT参数集合域中增加一个字节，用于指示业务流的类型，通过查找表2可以获知业务类型。
该方式四不仅能够指示低延时业务的传输，还可以同时告知AP业务类型，以便AP合理安排调度与资源分配。
S602、AP向STA发送包括TWT元素的TWT回复帧。相应地，STA接收来自AP的包括TWT元素的TWT回复帧。
STA与AP进行独占TWT建立时，AP接收到来自STA的TWT请求帧后，可以向STA发送TWT回复(TWT response)帧，该TWT回复帧可以包括TWT元素。当STA接收到TWT回复帧之后，独占TWT建立起来，所申请的独占TWT生效。其中，TWT回复帧，也可以理解为是TWT响应帧、TWT答复帧等。
S603、AP向STA发送用于指示静默元素的第一帧。相应地，STA接收来自AP的用于指示静默元素的第一帧。
AP可以根据独占TWT信息确定静默元素，在本申请实施例中，该静默元素可以用于让本基本服务集(basic service set，BBS)中除当前STA之外的其它STA保持静默。静默元素对应的静默时间段的起始时间与独占TWT SP的起始时间相同。
示例性地，静默元素的帧结构可以如表3所示。
表3静默元素的帧结构
其中，元素标识(Element ID)字段表示元素的标识，长度(Length)字段表示元素的长度，静默计数(Quiet Count)字段表示下一个静默间隔(quiet interval)所在的信标间隔(beacon interval)与当前时间之间TBTT的个数；静默周期(Quiet Period)字段表示两个静默间隔之间信标间隔的个数；静默持续时间(Quiet Duration)字段表示静默间隔的持续时间；静默偏移(Quiet Offset)字段表示静默间隔开始时间与静默计数中表示的TBTT之间的偏移。静默元素可以携带于第一帧中，示例性地，第一帧可以是信标(Beacon)帧和/或探测响应(Probe Response)帧，第一帧还可以是能够实现携带静默元素功能的其它帧，本申请对第一帧的类型不作限定。
S604、STA根据独占TWT信息和静默元素与AP进行传输。
STA可以根据静默元素所指示的静默时段的起始时间与自身独占TWT SP的起始时间进行对比，若是此时起始时间重叠，那么STA可以忽略该静默元素，反之则不允许忽略。可选地，静默时段的时长可以为1毫秒。本BSS内除该STA之外的其它STA无法听懂该独占TWT元素，此时无法忽略掉该独占TWT对应的静默元素，因此此时能够有效保障申请使用该独占TWT的STA的低延时传输。
本申请实施例可以通过独占TWT信息和静默元素实现独占TWT，能够有效地保障低延时用户的接入与传输。具体地可以提供一种独占TWT，独占TWT可以表示AP和STA协商的由唯一一个STA独占的一类TWT SP。本申请实施例还提供了几种实现独占TWT方法的方式，通过STA独占TWT SP，可以保护具有超低延时高吞吐特性的业务流传输。
上述内容详细阐述了本申请提供的方法，为了便于更好地实施本申请实施例的上述方案，本申请实施例还提供了相应的装置。
本申请实施例可以根据上述方法示例对通信装置进行功能模块的划分，例如，可以对应各个功能划分各个功能模块，也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。需要说明的是，本申请实施例中对模块的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。
请参阅图12，图12是本申请实施例提供的一种通信装置的结构示意图。该通信装置可以为STA，也可以为STA中的模块(例如，芯片或处理器)，还可以为能实现全部或部分STA功能的逻辑模块或软件。如图12所示，该通信装置1200，至少包括：发送单元1201、接收单元1202和处理单元1203；其中：
发送单元1201，用于向AP发送TWT请求帧，所述TWT请求帧包括TWT元素，所述TWT元素包括独占TWT信息，所述独占TWT信息用于指示所述STA独占TWT服务时间SP；
接收单元1202，用于接收来自所述AP的TWT回复帧，所述TWT回复帧包括所述TWT元素；
所述接收单元1202，还用于接收来自所述AP的第一帧，所述第一帧用于指示静默元素，所述静默元素用于让本基本服务集BSS中除所述STA之外的其它STA保持静默，所述静默元素对应的静默时间段的起始时间与所述独占TWT SP的起始时间相同；
处理单元1203，用于根据所述独占TWT信息和所述静默元素与所述AP进行传输。
在一个实施例中，第一帧为探测响应帧或者信标帧。
在一个实施例中，所述独占TWT信息由所述TWT元素中的广播TWT建议值确定。
在一个实施例中，所述广播TWT建议值为5。
在一个实施例中，所述第一帧包括所述TWT元素。
在一个实施例中，所述TWT元素包括广播TWT标识，不同STA的所述广播TWT标识不同。
在一个实施例中，所述独占TWT信息携带于所述TWT元素中的广播TWT信息子域中的预留位中。
在一个实施例中，所述独占TWT信息携带于所述TWT元素中的控制域中的预留位中。
在一个实施例中，所述TWT元素中携带指示信息，所述指示信息用于指示是否存在超低延时业务。
在一个实施例中，在所述指示信息指示存在超低延时业务的情况下，所述TWT元素还包括所述超低延时业务的业务类型。
有关上述发送单元1201、接收单元1202和处理单元1203更详细的描述可以直接参考上述图6所示的方法实施例中STA的相关描述，这里不加赘述。
请参阅图13，图13是本申请实施例提供的另一种通信装置的结构示意图。该通信装置可以为AP，也可以为AP中的模块(例如，芯片或处理器)，还可以为能实现全部或部分AP功能的逻辑模块或软件。如图13所示，该通信装置1300，至少包括：接收单元1301、发送单元1302和确定单元1303；其中：
接收单元1301，用于接收来自STA的TWT请求帧，所述TWT请求帧包括TWT元素，所述TWT元素包括独占TWT信息，所述独占TWT信息用于指示所述STA独占TWT服务时间SP；
发送单元1302，用于向所述STA发送TWT回复帧，所述TWT回复帧包括所述TWT元素；
确定单元1303，用于根据所述独占TWT信息确定静默元素，所述静默元素用于让本基本服务集BSS中除所述STA之外的其它STA保持静默，所述静默元素对应的静默时间段的起始时间与所述独占TWT SP的起始时间相同；
所述发送单元1302，还用于向所述STA发送第一帧，所述第一帧用于指示所述静默元素。
在一个实施例中，所述第一帧为探测响应帧或者信标帧。
在一个实施例中，所述独占TWT信息由所述TWT元素中的广播TWT建议值确定。
在一个实施例中，所述广播TWT建议值为5。
在一个实施例中，所述第一帧包括所述TWT元素。
在一个实施例中，所述TWT元素包括广播TWT标识，所述确定单元1303还用于：
根据所述独占TWT信息确定所述广播TWT标识，不同STA的所述广播TWT标识不同。
在一个实施例中，所述独占TWT信息携带于所述TWT元素中的广播TWT信息子域中的预留位中。
在一个实施例中，所述独占TWT信息携带于所述TWT元素中的控制域中的预留位中。
在一个实施例中，所述TWT元素中携带指示信息，所述指示信息用于指示是否存在超低延时业务。
在一个实施例中，在所述指示信息指示存在超低延时业务的情况下，所述TWT元素还包括所述超低延时业务的业务类型。
有关上述接收单元1301、发送单元1302和确定单元1303更详细的描述可以直接参考上述图6所示的方法实施例中AP的相关描述，这里不加赘述。
请参阅图14，图14是本申请实施例提供的又一种通信装置的结构示意图。如图14所示，该装置1400可以包括一个或多个处理器1401，处理器1401也可以称为处理单元，可以实现一定的控制功能。处理器1401可以是通用处理器或者专用处理器等。
在一种可选的设计中，处理器1401也可以存有指令1403，所述指令1403可以被所述处理器运行，使得所述装置1400执行上述方法实施例中描述的方法。
在另一种可选的设计中，处理器1401中可以包括用于实现接收和发送功能的收发单元。例如该收发单元可以是收发电路，或者是接口，或者是接口电路，或者是通信接口。用于实现接收和发送功能的收发电路、接口或接口电路可以是分开的，也可以集成在一起。上述收发电路、接口或接口电路可以用于代码/数据的读写，或者，上述收发电路、接口或接口电路可以用于信号的传输或传递。
在又一种可能的设计中，装置1400可以包括电路，所述电路可以实现前述方法实施例中发送或接收或者通信的功能。
可选的，所述装置1400中可以包括一个或多个存储器1402，其上可以存有指令1404，所述指令可在所述处理器上被运行，使得所述装置1400执行上述方法实施例中描述的方法。可选的，所述存储器中还可以存储有数据。可选的，处理器中也可以存储指令和/或数据。所述处理器和存储器可以单独设置，也可以集成在一起。例如，上述方法实施例中所描述的对应关系可以存储在存储器中，或者存储在处理器中。
可选的，所述装置1400还可以包括收发器1405和/或天线1406。所述处理器1401可以称为处理单元，对所述装置1400进行控制。所述收发器1405可以称为收发单元、收发机、收发电路、收发装置或收发模块等，用于实现收发功能。
可选的，本申请实施例中的装置1400可以用于执行本申请实施例中图6描述的方法。
在一个实施例中，该通信装置1400可以应用于STA，也可以应用于STA中的模块(例如，芯片或处理器)，还可以应用于能实现全部或部分STA功能的逻辑模块或软件。存储器1402中存储的计算机程序指令被执行时，该处理器1401用于控制处理单元1203执行上述实施例中执行的操作，收发器1405用于执行上述实施例中发送单元1201和接收单元1202执行的操作，收发器1405还用于向该通信装置之外的其它通信装置发送信息。上述STA或者STA内的模块还可以用于执行上述图6方法实施例中STA执行的各种方法，不再赘述。
在一个实施例中，该通信装置1400可以应用于AP，也可以应用于AP中的模块(例如，芯片或处理器)，还可以应用于能实现全部或部分AP功能的逻辑模块或软件。存储器1402中存储的计算机程序指令被执行时，该处理器1401用于控制确定单元1303执行上述实施例中执行的操作，收发器1405用于执行上述实施例中接收单元1301和发送单元1302执行的操作，收发器1405还用于向该通信装置之外的其它通信装置发送信息。上述AP或者AP内的模块还可以用于执行上述图6方法实施例中AP执行的各种方法，不再赘述。
本申请中描述的处理器和收发器可实现在集成电路(integrated circuit，IC)、模拟IC、射频集成电路(radiofrequencyinterfacechip，RFIC)、混合信号IC、专用集成电路(application specific integrated circuit，ASIC)、印刷电路板(printed circuit board，PCB)、电子设备等上。该处理器和收发器也可以用各种IC工艺技术来制造，例如互补金属氧化物半导体(complementary metal oxide semiconductor，CMOS)、N型金属氧化物半导体(nMetal-oxide-semiconductor，NMOS)、P型金属氧化物半导体(positive channel metal oxide semiconductor，PMOS)、双极结型晶体管(bipolar junction transistor，BJT)、双极CMOS(BiCMOS)、硅锗(SiGe)、砷化镓(GaAs)等。
以上实施例描述中的装置可以是第一终端设备或者第二终端设备,但本申请中描述的装置的范围并不限于此,而且装置的结构可以不受图14的限制。装置可以是独立的设备或者可以是较大设备的一部分。例如所述装置可以是：
(1)独立的集成电路IC，或芯片，或芯片系统或子系统；
(2)具有一个或多个IC的集合，可选的，该IC集合也可以包括用于存储数据和/或指令的存储部件；
(3)ASIC，例如调制解调器(MSM)；
(4)可嵌入在其他设备内的模块；
(5)接收机、终端、智能终端、蜂窝电话、无线设备、手持机、移动单元、车载设备、网络设备、云设备、人工智能设备、机器设备、家居设备、医疗设备、工业设备等等；
(6)其他等等。
本申请实施例还提供一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时可以实现上述方法实施例提供的通信方法中与STA相关的流程。
本申请实施例还提供一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时可以实现上述方法实施例提供的通信方法中与AP相关的流程。
本申请实施例还提供了一种计算机程序产品，当其在计算机或处理器上运行时，使得计算机或处理器执行上述任一个通信方法中的一个或多个步骤。上述所涉及的设备的各组成模块如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在所述计算机可读取存储介质中。
本申请实施例还提供一种芯片系统，包括至少一个处理器和通信接口，所述通信接口和所述至少一个处理器通过线路互联，所述至少一个处理器用于运行计算机程序或指令，以执行包括上述图6对应的方法实施例中记载的任意一种的部分或全部步骤。该芯片系统，可以由芯片构成，也可以包含芯片和其他分立器件。
本申请实施例还公开一种通信系统，该系统包括STA和AP，具体描述可以参考图6所示的通信方法。
应理解，本申请实施例中提及的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是硬盘(hard disk drive，HDD)、固态硬盘(solid-state drive，SSD)、只读存储器(read-only memory，ROM)、可编程只读存储器(programmable ROM，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(static rAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous dRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，DR RAM)。存储器是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。本申请实施例中的存储器还可以是电路或者其它任意能够实现存储功能的装置，用于存储程序指令和/或数据。
还应理解，本申请实施例中提及的处理器可以是中央处理单元(central processing unit，CPU)，还可以是其他通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现成可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
需要说明的是，当处理器为通用处理器、DSP、ASIC、FPGA或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件时，存储器(存储模块)集成在处理器中。
应注意，本文描述的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
本领域普通技术人员可以意识到，结合本文中所提供的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决 于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
本申请实施例方法中的步骤可以根据实际需要进行顺序调整、合并和删减。
本申请实施例装置中的模块/单元可以根据实际需要进行合并、划分和删减。
以上所述，以上实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围。

Claims (26)

  1. 一种通信方法，其特征在于，包括：
    站点STA向接入点AP发送目标唤醒时间TWT请求帧，所述TWT请求帧包括TWT元素，所述TWT元素包括独占TWT信息，所述独占TWT信息用于指示所述STA独占TWT服务时间SP；
    所述STA接收来自所述AP的TWT回复帧，所述TWT回复帧包括所述TWT元素；
    所述STA接收来自所述AP的第一帧，所述第一帧用于指示静默元素，所述静默元素用于让本基本服务集BSS中除所述STA之外的其它STA保持静默，所述静默元素对应的静默时间段的起始时间与所述独占TWT SP的起始时间相同；
    所述STA根据所述独占TWT信息和所述静默元素与所述AP进行传输。
  2. 根据权利要求1所述的方法，其特征在于，所述第一帧为探测响应帧或者信标帧。
  3. 根据权利要求1或2所述的方法，其特征在于，所述独占TWT信息由所述TWT元素中的广播TWT建议值确定。
  4. 根据权利要求3所述的方法，其特征在于，所述广播TWT建议值为5。
  5. 根据权利要求1-4任一所述的方法，其特征在于，所述第一帧包括所述TWT元素。
  6. 根据权利要求5所述的方法，其特征在于，所述TWT元素包括广播TWT标识，不同STA的所述广播TWT标识不同。
  7. 根据权利要求1或2所述的方法，其特征在于，所述独占TWT信息携带于所述TWT元素中的广播TWT信息子域中的预留位中。
  8. 根据权利要求1或2所述的方法，其特征在于，所述独占TWT信息携带于所述TWT元素中的控制域中的预留位中。
  9. 根据权利要求1-8任一所述的方法，其特征在于，所述TWT元素中携带指示信息，所述指示信息用于指示是否存在超低延时业务。
  10. 根据权利要求9所述的方法，其特征在于，在所述指示信息指示存在超低延时业务的情况下，所述TWT元素还包括所述超低延时业务的业务类型。
  11. 一种通信方法，其特征在于，包括：
    接入点AP接收来自站点STA的目标唤醒时间TWT请求帧，所述TWT请求帧包括TWT元素，所述TWT元素包括独占TWT信息，所述独占TWT信息用于指示所述STA独占TWT服务时间SP；
    所述AP向所述STA发送TWT回复帧，所述TWT回复帧包括所述TWT元素；
    所述AP根据所述独占TWT信息确定静默元素，所述静默元素用于让本基本服务集BSS中除所述STA之外的其它STA保持静默，所述静默元素对应的静默时间段的起始时间与所述独占TWT SP的起始时间相同；
    所述AP向所述STA发送第一帧，所述第一帧用于指示所述静默元素。
  12. 根据权利要求11所述的方法，其特征在于，所述第一帧为探测响应帧或者信标帧。
  13. 根据权利要求11或12所述的方法，其特征在于，所述独占TWT信息由所述TWT元素中的广播TWT建议值确定。
  14. 根据权利要求13所述的方法，其特征在于，所述广播TWT建议值为5。
  15. 根据权利要求11-14任一所述的方法，其特征在于，所述第一帧包括所述TWT元素。
  16. 根据权利要求15所述的方法，其特征在于，所述TWT元素包括广播TWT标识，所述方法还包括：
    所述AP根据所述独占TWT信息确定所述广播TWT标识，不同STA的所述广播TWT标识不同。
  17. 根据权利要求11或12所述的方法，其特征在于，所述独占TWT信息携带于所述TWT元素中的广播TWT信息子域中的预留位中。
  18. 根据权利要求11或12所述的方法，其特征在于，所述独占TWT信息携带于所述TWT元素中的控制域中的预留位中。
  19. 根据权利要求11-18任一所述的方法，其特征在于，所述TWT元素中携带指示信息，所述指示信息用于指示是否存在超低延时业务。
  20. 根据权利要求19所述的方法，其特征在于，在所述指示信息指示存在超低延时业务的情况下，所述TWT元素还包括所述超低延时业务的业务类型。
  21. 一种通信装置，其特征在于，所述装置应用于站点STA，包括用于执行如权利要求1-10任意一项所述方法的单元。
  22. 一种通信装置，其特征在于，所述装置应用于接入点AP，包括用于执行如权利要求11-20任意一项所述方法的单元。
  23. 一种通信装置，其特征在于，包括处理器、存储器、输入接口和输出接口，所述输入接口用于接收来自所述通信装置之外的其它通信装置的信息，所述输出接口用于向所述通信装置之外的其它通信装置输出信息，当所述存储器中存储的存储计算机程序被所述处理器调用时，使得所述装置执行如权利要求1-10或11-20任意一项所述的方法。
  24. 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中存储有计算机程序或计算机指令，当所述计算机程序或计算机指令被处理器执行时，实现如权利要求1-10或11-20任意一项所述的方法。
  25. 一种包含程序指令的计算机程序产品，当所述程序指令在计算机上运行时，实现如权利要求1-10或11-20任意一项所述的方法。
  26. 一种芯片系统，其特征在于，包括至少一个处理器、存储器和接口电路，所述存储器、所述接口电路和所述至少一个处理器通过线路互联，所述至少一个存储器中存储有指令；所述指令被所述处理器执行时，实现如权利要求1-10或11-20任意一项所述的方法。
PCT/CN2023/102716 2022-06-29 2023-06-27 一种通信方法、装置及计算机可读存储介质 WO2024002060A1 (zh)

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WO2013104297A1 (zh) * 2012-01-13 2013-07-18 华为技术有限公司 静默期网络分配矢量的设置方法、装置及系统
CN105813077A (zh) * 2016-04-14 2016-07-27 天津大学 基于802.11ah减少开销降低终端功耗的通信方法
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WO2022125440A1 (en) * 2020-12-07 2022-06-16 Facebook Technologies, Llc Systems and methods for quiet element in twt for wireless communication

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WO2013104297A1 (zh) * 2012-01-13 2013-07-18 华为技术有限公司 静默期网络分配矢量的设置方法、装置及系统
CN105813077A (zh) * 2016-04-14 2016-07-27 天津大学 基于802.11ah减少开销降低终端功耗的通信方法
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