WO2022166157A1 - 无线通信的方法、站点设备和接入点设备 - Google Patents

无线通信的方法、站点设备和接入点设备 Download PDF

Info

Publication number
WO2022166157A1
WO2022166157A1 PCT/CN2021/113119 CN2021113119W WO2022166157A1 WO 2022166157 A1 WO2022166157 A1 WO 2022166157A1 CN 2021113119 W CN2021113119 W CN 2021113119W WO 2022166157 A1 WO2022166157 A1 WO 2022166157A1
Authority
WO
WIPO (PCT)
Prior art keywords
duration
ppdu
target
frame
transmission
Prior art date
Application number
PCT/CN2021/113119
Other languages
English (en)
French (fr)
Inventor
卢刘明
黄磊
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to CN202180088259.4A priority Critical patent/CN116671248A/zh
Priority to EP21924157.7A priority patent/EP4262302A1/en
Publication of WO2022166157A1 publication Critical patent/WO2022166157A1/zh
Priority to US18/219,161 priority patent/US20230354426A1/en

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0808Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • H04W74/0816Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA] with collision avoidance
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0209Power saving arrangements in terminal devices
    • H04W52/0212Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H04W52/0216Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0209Power saving arrangements in terminal devices
    • H04W52/0225Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0235Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a power saving command
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0209Power saving arrangements in terminal devices
    • H04W52/0261Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H04W52/0274Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof
    • H04W52/028Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof switching on or off only a part of the equipment circuit blocks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/04Scheduled access
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/002Transmission of channel access control information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10Small scale networks; Flat hierarchical networks
    • H04W84/12WLAN [Wireless Local Area Networks]

Definitions

  • the embodiments of the present application relate to the field of communications, and more particularly, to a wireless communication method, a station device, and an access point device.
  • TWT Target Wake Time
  • AP Access Point
  • BSS Basic Service Set
  • STA station
  • SP service period
  • other STAs in the BSS may affect the STAs supporting the low-latency service to perform timely frame exchange within the specified service period (SP).
  • the embodiments of the present application provide a wireless communication method, site device, and access point device to ensure that other sites in the basic service set (BSS) do not affect the site that supports low-latency services to perform within a specified service period (SP). Just-in-time frame exchange.
  • BSS basic service set
  • SP specified service period
  • a method for wireless communication comprising:
  • the station device does not send the PPDU when acquiring the transmission opportunity or within the acquired transmission opportunity; and/or,
  • the station device sends the PPDU when acquiring the transmission opportunity or within the acquired transmission opportunity;
  • the target duration is located before the start time point of the next low-latency service period in the BSS.
  • a method for wireless communication comprising:
  • the access point device determines whether the target station is allowed to send the PPDU within the target time period before the start time point of the next low-latency service period in the BSS.
  • a site device for performing the method in the above-mentioned first aspect.
  • the site device includes a functional module for executing the method in the first aspect above.
  • an access point device is provided for performing the method in the second aspect.
  • the access point device includes functional modules for executing the method in the second aspect above.
  • a site device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the first aspect.
  • an access point device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the second aspect.
  • an apparatus for implementing the method in any one of the above-mentioned first to second aspects.
  • the apparatus includes: a processor for invoking and running a computer program from a memory, so that a device on which the apparatus is installed executes the method in any one of the first to second aspects above.
  • a computer-readable storage medium for storing a computer program, the computer program causing a computer to execute the method in any one of the first to second aspects above.
  • a computer program product comprising computer program instructions, the computer program instructions causing a computer to perform the method in any one of the first to second aspects above.
  • a computer program which, when run on a computer, causes the computer to perform the method of any one of the above-mentioned first to second aspects.
  • the station device can send the transmission when acquiring the transmission opportunity or within the acquired transmission opportunity according to the conditions satisfied by the target duration before the start time point of the next low-latency service cycle in the BSS. PPDUs, and/or not sending PPDUs when acquiring a transmission opportunity or within an acquired transmission opportunity, so as to ensure that the PPDUs to be sent by the station equipment will not cause the designated transmission within the low-latency service period to be delayed or destroyed.
  • the access point device can determine whether the target site is allowed to send the PPDU within the target time period before the start time point of the next low-latency service cycle in the BSS, so as to ensure that the target site is about to send the PPDU.
  • PPDUs do not cause delay or disruption of designated transmissions within the low-latency service period.
  • FIG. 1 is a schematic diagram of a communication system architecture to which an embodiment of the present application is applied.
  • FIG. 2 is a schematic diagram of a restricted TWT SP provided by the present application.
  • FIG. 3 is a schematic diagram of an RTS/CTS provided by the present application.
  • FIG. 4 is a schematic diagram of a transmission in an SP that is affected by an excessively long PPDU provided by the present application.
  • FIG. 5 is a schematic flowchart of a method for wireless communication according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a target duration provided according to an embodiment of the present application.
  • FIG. 7 is a schematic flowchart of another wireless communication method provided according to an embodiment of the present application.
  • FIG. 8 is a schematic diagram of another target duration provided according to an embodiment of the present application.
  • FIG. 9 is a schematic diagram of a target feedback frame provided according to an embodiment of the present application.
  • FIG. 10 is a schematic diagram of an indication frame provided according to an embodiment of the present application.
  • FIG. 11 is a schematic diagram of another target feedback frame provided according to an embodiment of the present application.
  • FIG. 12 is a schematic diagram of a trigger frame provided according to an embodiment of the present application.
  • FIG. 13 is a schematic diagram of a PPDU that is only allowed to be sent once according to an embodiment of the present application.
  • FIG. 14 is a schematic block diagram of a site device provided according to an embodiment of the present application.
  • FIG. 15 is a schematic block diagram of an access point device according to an embodiment of the present application.
  • FIG. 16 is a schematic block diagram of a communication device provided according to an embodiment of the present application.
  • Fig. 17 is a schematic block diagram of an apparatus provided according to an embodiment of the present application.
  • Fig. 18 is a schematic block diagram of a communication system provided according to an embodiment of the present application.
  • wireless local area network Wireless Local Area Networks, WLAN
  • wireless fidelity Wireless Fidelity, WiFi
  • other communication systems such as: wireless local area network (Wireless Local Area Networks, WLAN), wireless fidelity (Wireless Fidelity, WiFi), or other communication systems.
  • the communication system 100 may include an access point (Access Point, AP) device 110 and a station (STATION, STA) device 120 that accesses the network through the access point device 110 .
  • Access Point Access Point
  • STA station
  • the STA device can be deployed on land, including indoor or outdoor, handheld, wearable, or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons, and satellites) superior).
  • the STA device may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) device, an augmented reality (Augmented Reality, AR) device, Wireless devices in industrial control, wireless devices in self-driving, wireless devices in remote medical, wireless devices in smart grid, transportation safety ), wireless devices in a smart city, or wireless devices in a smart home, etc.
  • a virtual reality Virtual Reality, VR
  • AR Augmented Reality
  • Wireless devices in industrial control wireless devices in self-driving, wireless devices in remote medical, wireless devices in smart grid, transportation safety ), wireless devices in a smart city, or wireless devices in a smart home, etc.
  • the STA device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices, which are the general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full functions, large sizes, and can achieve complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones.
  • FIG. 1 exemplarily shows one AP and two STAs.
  • the communication system 100 may include multiple APs and other numbers of STAs, which are not limited in this embodiment of the present application.
  • a device having a communication function in the network/system may be referred to as a communication device.
  • the communication device may include an access point 110 and a station 120 with communication functions, and the access point 110 and the station 120 may be the specific devices described above, which will not be repeated here.
  • the communication device may further include other devices in the communication system 100, such as other network entities such as a network controller and a gateway, which are not limited in this embodiment of the present application.
  • the "instruction" mentioned in the embodiments of the present application may be a direct instruction, an indirect instruction, or an associated relationship.
  • a indicates B it can indicate that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indicates B indirectly, such as A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.
  • corresponding may indicate that there is a direct or indirect corresponding relationship between the two, or may indicate that there is an associated relationship between the two, or indicate and be instructed, configure and be instructed configuration, etc.
  • predefinition may be implemented by pre-saving corresponding codes, forms, or other methods that can be used to indicate relevant information in devices (for example, including terminal devices and network devices).
  • the implementation method is not limited.
  • predefined may refer to the definition in the protocol.
  • the "protocol” may refer to a standard protocol in the communication field, for example, may include a WiFi protocol and related protocols applied in future WiFi communication systems, which are not limited in this application.
  • TWT Target Wake Time
  • the TWT timing wake-up mechanism first appeared in the 802.11ah "Wi-Fi HaLow" standard, which is used to support energy-saving work in a large-scale IoT environment.
  • the TWT mechanism based on 802.11ah, has been modified to support trigger-based uplink transmission, thereby expanding the scope of TWT operations.
  • a timetable is established between the STA device and the AP device (the timetable is negotiated by the STA device and the AP device), and the timetable is composed of the TWT time period.
  • the STA device will wake up, wait for the trigger frame sent by the AP device, and perform a data exchange.
  • the transmission is completed, it returns to the sleep state.
  • Each STA device can negotiate independently with the AP device, and each STA device has a separate TWT time period.
  • TWT allows the AP device to manage the behavior of the Basic Service Set (BSS) to reduce competition between sites.
  • BSS Basic Service Set
  • the TWT has the scheduling feature of specifying a specific STA to perform frame exchange in the Service Period (SP) according to time.
  • SP Service Period
  • the TWT SP starts, a STA that does not support TWT or is not designated to transmit in the TWT SP will continue to occupy network channel resources when its TXOP is not over, thus affecting the transmission of the designated STA in this TWT SP; resulting in Specifies the delay unpredictability of STA's UL data.
  • TWT Transmission Opportunity, TXOP
  • STA Transmission Opportunity, TXOP
  • the request to send (Request To Send, RTS) or allow to send (Clear To Send, CTS) protocol is equivalent to the handshake protocol, which is used to solve the frame exchange conflict problem caused by the hidden terminal.
  • RTS is enabled after a Distributed Inter-frame Spacing (DIFS), when RTS/CTS is enabled, a station sends an RTS frame before sending a data frame, and when the receiver is willing to receive a data frame, it Will respond with a CTS frame.
  • DIFS Distributed Inter-frame Spacing
  • CTS/CTS exchange a time window (identified in the CTS frame) is opened for the sending station to send a data frame to the station that acknowledges receipt.
  • the receiver When the receiver finishes receiving the data frame, it sends back an Acknowledgement (ACK) or Block Acknowledgment (BA) to the sender to confirm the receipt of the data frame after a short interframe space (Short Interframe Space, SIFS), as shown in Figure 3 shown.
  • ACK Acknowledgement
  • BA Block Acknowledgment
  • the improved solution shown in Figure 2 above can increase the channel access opportunities of APs and member STAs in the TWT SP, it can only partially solve the "uncertainty" problem of the start time of the TWT SP, which is very important for STAs that ensure low-latency services.
  • the reliability of the service period (SP) of the (Low-Latency STA) not being occupied by other STAs that do not support low-latency services is not strong.
  • the TXOPs of other transmissions can only be terminated in advance before the SP comes. If a relatively long physical layer protocol data unit (PPDU) has been transmitted before, it cannot be terminated.
  • PPDU physical layer protocol data unit
  • STA2 (such as a STA that does not support low-latency services) sends a PPDU after obtaining the transmission opportunity TXOP. Since the starting point of the low-latency service is not considered, the length of the PPDU is too long, so that the transmission time of the PPDU is longer than that of the PPDU. The low-latency service periods of STA1 overlap, resulting in a delay in sending low-latency service data within the low-latency service period of STA1. Even if the cutoff is performed before the TXOP termination point of STA2, the situation where the SP is affected cannot be changed.
  • the present application proposes a low-latency service transmission scheme, which can ensure that other stations in the BSS do not affect the timely frame exchange of the stations supporting the low-latency service within a specified service period (SP).
  • SP service period
  • station device may also be referred to as a non-access point station (Non-AP STA).
  • Non-AP STA non-access point station
  • FIG. 5 is a schematic flowchart of a method 200 for wireless communication according to an embodiment of the present application. As shown in FIG. 5 , the method 200 may include at least part of the following contents:
  • the station device in the case that the target duration satisfies the first condition, the station device does not send the PPDU when acquiring the transmission opportunity or within the acquired transmission opportunity; and/or, in the case that the target duration satisfies the second condition, the station device is acquiring the transmission opportunity.
  • the PPDU is sent at the time of transmission opportunity or within the acquired transmission opportunity; wherein, the target duration is located before the start time point of the next low-latency service period in the BSS.
  • the site equipment The PPDU may be sent when a transmission opportunity is acquired or within the acquired transmission opportunity, and/or, when a transmission opportunity is acquired, according to the conditions satisfied by the target duration before the start time point of the next low-latency service period in the BSS Or no PPDU is sent within the acquired transmission opportunity.
  • the next low-latency service period is not configured for the site device to perform frame exchange.
  • the station device may be, for example, an extremely high throughput (Extremely High Throughput, EHT) station (STA), or may be other STAs, such as legacy STAs (ie, previous generation STAs). Not limited.
  • EHT extremely High Throughput
  • legacy STAs ie, previous generation STAs
  • the next low-latency service period may include a restricted TWT service period (Restricted TWT SP).
  • the AP device may indicate the pre-assigned low-latency service period, including the relevant low-latency service period, through a low-latency service period indication frame (such as a beacon frame (Beacon), or a TWT response frame, etc.)
  • a low-latency service period indication frame such as a beacon frame (Beacon), or a TWT response frame, etc.
  • the station device can obtain the information of the next low-latency service cycle in the BSS based on the low-latency service cycle indication frame (such as a beacon frame (Beacon), or a TWT response frame, etc.) sent by the AP device, including the low-latency service cycle.
  • the low-latency service cycle indication frame such as a beacon frame (Beacon), or a TWT response frame, etc.
  • the station device obtains the restricted TWT parameter through the restricted TWT element or the restricted TWT service period advertisement element.
  • the restricted TWT parameter includes start time point information of the service period of the next restricted TWT.
  • the restricted TWT element is a beacon frame, a probe response frame, an association response frame, a reassociation response frame, and a management frame that carry the restricted TWT element by the access point device associated with the station device. at least one of the sent.
  • the restricted TWT service period advertisement element is a beacon frame, a probe response frame, an association response frame, a reassociation frame that carry the restricted TWT service period advertisement element by the access point device associated with the station device Sent by at least one of a response frame and a management frame.
  • the restricted TWT element is the most recently received restricted TWT element.
  • the restricted TWT service period advertisement element is the newly received restricted TWT service period advertisement element.
  • the station device obtains the Restricted TWT parameter value through the newly received Restricted TWT element or the Restricted TWT SP Announcement element, including the value of the next low-latency service period.
  • Start time point information where Restricted TWT element or Restricted TWT SP Announcement element is the access point (AP) device associated with the station device through the beacon frame, probe response frame, association response frame, and reassociation response that carry the element. frame and other management frames.
  • AP access point
  • the target duration is a time interval between a start time point when the PPDU is to be sent and a start time point of the next low-latency service period, for example, as shown in FIG. 6 .
  • the time interval between the start time point (T TXOPST ) of the PPDU to be sent and the start time point (T LLSPST ) of the next low-latency service period may be Difference(T TXOPST ,T LLSPST ), that is, the target The duration can be Difference(T TXOPST ,T LLSPST ).
  • the first condition when the transmission duration of the PPDU has been determined, includes that the first duration is greater than the target duration, and/or the second condition includes that the first duration is less than or equal to the target duration;
  • T 1 T PPDU +T s
  • T 1 T PPDU +T f +T s
  • T PPDU is the transmission duration of the PPDU
  • T f is the transmission duration of the feedback frame
  • T s is the preset inter-frame interval duration.
  • the first condition when the transmission duration of the PPDU is not determined, includes that the second duration is greater than the target duration, and/or the second condition includes that the second duration is less than or equal to the target duration;
  • T 2 T min-PPDU +T s
  • T 2 T min-PPDU +T f +T s
  • T min-PPDU is the minimum PPDU transmission duration
  • T f is the duration of the feedback frame
  • T s is the preset inter-frame interval duration.
  • the station device determines to send the PPDU when acquiring the transmission opportunity or within the acquired transmission opportunity
  • T PPDU of the PPDU satisfies: T PPDU ⁇ T t -T s , or, T PPDU ⁇ T t -(T f +T s ),
  • T t is the target duration
  • T f is the transmission duration of the feedback frame
  • T s is the preset inter-frame interval duration.
  • the site device when the target duration satisfies the first condition, the site device triggers a rollback process.
  • the non-AP STA backs off to 0 (that is, the backoff counter reaches 0 value) according to the Enhanced Distributed Channel Access (EDCA) rule outside the Restricted TWT Service Period (SP) and
  • EDCA Enhanced Distributed Channel Access
  • SP Restricted TWT Service Period
  • the target duration is the time interval between the start time point of the transmission sequence of PPDUs to be sent and the start time point of the next low-latency service period.
  • the first condition includes that the sixth duration is greater than the target duration, and/or the second condition includes that the sixth duration is less than or equal to the target duration;
  • T 6 T PPDU transmission sequence
  • T 6 T PPDU transmission sequence +T s
  • T PPDU transmission sequence is the transmission duration of the PPDU transmission sequence to be sent, and T s is the preset inter-frame interval duration.
  • the station device when the target duration satisfies the first condition, stops sending the transmission sequence of the PPDU to be sent, and triggers a fallback process.
  • the station device when the station device starts a transmission opportunity outside the low-latency service period, it does not consider whether the end time point of the transmission opportunity exceeds the start time point of the next low-latency service period, wherein in the In the transmission opportunity, multiple PPDU transmission sequences are to be sent, and the multiple PPDU transmission sequences include the to-be-sent PPDU transmission sequence; the station device detects in advance whether the PPDU transmission sequence to be sent exceeds any low-latency service when sending the PPDU transmission sequence.
  • the start point of the cycle during the transmission opportunity, when the end time point of the PPDU transmission sequence to be sent exceeds the start point of the next low-latency service cycle, the station device will stop the transmission of the PPDU transmission sequence to be sent, and Trigger the fallback process.
  • the duration setting of the frame sent by the station device adopts a single protection mode.
  • a non-AP STA initiates a TXOP and expects to send multiple PPDU transmission sequences (each PPDU transmission sequence includes at least one PPDU transmission and possibly an acknowledgment frame) during the TXOP,
  • each PPDU transmission sequence includes at least one PPDU transmission and possibly an acknowledgment frame
  • it does not consider whether the end time point of TXOP exceeds the starting point of the service cycle of any Restricted TWT, but when each transmission sequence is sent, it will detect in advance whether the transmission sequence to be sent exceeds the limit of any Restricted TWT.
  • the starting point of the service period is not consider whether the end time point of TXOP exceeds the starting point of the service cycle of any Restricted TWT, but when each transmission sequence is sent, it will detect in advance whether the transmission sequence to be sent exceeds the limit of any Restricted TWT.
  • the PPDU transmission sequence will be stopped. , and trigger the backoff process.
  • the duration (Duration) setting of the frame sent by the non-AP STA adopts the single protection (single protection) method.
  • the site equipment acquires the transmission opportunity outside the low-latency service period
  • the site device sets the duration of the transmission opportunity to the first time when starting the transmission opportunity. Seven durations, the start time point of the seventh duration is the time when the transmission opportunity is obtained, the end time of the seventh duration is not later than the start time of the next low-latency service cycle, and the seventh duration The time interval between the end time point and the start time point of the next low-latency service period is less than or equal to the preset inter-frame interval duration.
  • the non-AP STA sets the TXOP duration when starting TXOP.
  • the time period between the start time point of acquiring the TXOP and the adjusted end time point of the TXOP is the time period between the start time point of acquiring the TXOP and the adjusted end time point of the TXOP, where the adjusted end time point of the TXOP is not later than the start point of the service cycle of the latest Restricted TWT, but not later than the latest Restricted TWT
  • the starting point of the service cycle is earlier than the time interval of the SIFS duration.
  • the site equipment acquires the transmission opportunity outside the low-latency service period, and the end time point of the transmission opportunity exceeds the start time point of the next low-latency service period; the site equipment starts the transmission
  • the duration of the transmission opportunity is set to the eighth duration
  • the starting time of the eighth duration is the time at which the transmission opportunity is acquired
  • the end time of the eighth duration exceeds the start of the next low-latency service cycle.
  • the last frame transmitted by the station device before the start time of the next low-latency service period is the contention-free end frame
  • the transmission end time of the contention-free end frame is The time interval from the start time point of the next low-latency service period is less than or equal to the preset inter-frame interval duration.
  • the non-AP STA sets the TXOP duration to the duration between the start time point of acquiring the TXOP and the expected TXOP end time point when starting the TXOP, where the expected TXOP end time point exceeds the service cycle of the nearest Restricted TWT Starting point, in order to ensure that the time interval between the end time point of the TXOP and the start point of the service period of the nearest Restricted TWT is equal to or less than SIFS, the non-AP STA is at the start point of the service period of the nearest Restricted TWT during the TXOP period.
  • the last frame previously transmitted is a CF-End frame, and the time between the transmission end time point of the CF-End frame and the start point of the service period
  • the site device when the site device is a site device in an energy-saving state, and when the fallback process has not been started or the fallback process has been started but no transmission opportunity has been acquired, at the current point in time and the next
  • the site device enters the sleep state before the start time point of the next low-latency service period, and maintains the sleep state for at least to the start time point of the next low-latency service period.
  • the doze state is entered before the start time point of the next low-latency service cycle, and at the same time, the doze state is maintained at least until the next low-latency service cycle.
  • the starting point in time of the business cycle is less than or equal to a preset threshold.
  • the station device obtains the preset threshold through a restricted TWT element or a restricted TWT service period announcement element that carries the preset threshold.
  • the restricted TWT element is a beacon frame, a probe response frame, an association response frame, a reassociation response frame, and a management frame that carry the restricted TWT element by the access point device associated with the station device. at least one of the sent.
  • the restricted TWT service period advertisement element is a beacon frame, a probe response frame, an association response frame, a reassociation frame that carry the restricted TWT service period advertisement element by the access point device associated with the station device Sent by at least one of a response frame and a management frame.
  • the restricted TWT element is the most recently received restricted TWT element.
  • the restricted TWT service period advertisement element is the newly received restricted TWT service period advertisement element.
  • the station device obtains the Restricted TWT parameter value through the newly received Restricted TWT element or the Restricted TWT SP Announcement element, including the value of the next low-latency service period.
  • Start time point information where Restricted TWT element or Restricted TWT SP Announcement element is the access point (AP) device associated with the station device through the beacon frame, probe response frame, association response frame, and reassociation response that carry the element. frame and other management frames.
  • AP access point
  • the preset inter-frame space duration includes a short inter-frame space (SIFS) duration.
  • SIFS short inter-frame space
  • the site device determines not to send the PPDU when acquiring a transmission opportunity or within the acquired transmission opportunity, and the target duration is sufficient to send a contention-free end control frame, the site device is in the target The contention-free end control frame is sent within the duration.
  • contention free end (Contention Free-End, CF-End) control frame is used for the transmission opportunity holder (TXOP Holder) to terminate the transmission opportunity (TXOP).
  • the above-mentioned feedback frame may be an Acknowledgement (Acknowledgement, ACK) frame or a Block Acknowledgment (BA) frame.
  • Acknowledgement Acknowledgement
  • BA Block Acknowledgment
  • the station device may send the transmission opportunity when acquiring the transmission opportunity or within the acquired transmission opportunity according to the condition satisfied by the target duration before the start time point of the next low-latency service period in the BSS.
  • PPDUs, and/or not sending PPDUs when acquiring a transmission opportunity or within an acquired transmission opportunity so as to ensure that the PPDUs to be sent by the station equipment will not cause the designated transmission within the low-latency service period to be delayed or destroyed.
  • a STA (Low-Latency STA) supporting a low-latency service can reliably obtain a transmission opportunity and perform a low-latency service at the starting time point of the reserved service period (SP).
  • the transmission of delayed service data solves the "uncertainty" caused by the actual starting time of the low-latency service period (such as TWT SP) reserved for transmission by designated STAs in the Wi-Fi standard working mechanism due to the influence of other STAs' transmissions. This will affect the timely transmission of low-latency service data, thereby protecting the designated service cycle for low-latency service access and reducing the transmission delay of low-latency service data.
  • FIG. 7 is a schematic flowchart of a method 300 for wireless communication according to an embodiment of the present application. As shown in FIG. 7 , the method 300 may include at least part of the following contents:
  • the access point device determines whether the target station is allowed to send the PPDU within the target time period before the start time point of the next low-latency service period in the BSS.
  • the access The point device may determine whether the target station is allowed to send the PPDU within the target time period before the start time point of the next low-latency service period in the BSS.
  • the next low-latency service period is not configured for the target site to perform frame exchange.
  • the station device may be, for example, an EHT STA, or other STA, such as a legacy STA (ie, a previous generation STA), which is not limited in this application.
  • EHT STA EHT STA
  • legacy STA ie, a previous generation STA
  • the next low-latency service period may include a restricted TWT service period.
  • the AP device may determine information about at least the next low-latency service period in the BSS, including the start time point and/or the end time point of the low-latency service period, and the configuration objects of the low-latency service period Wait.
  • the AP device needs to ensure that the AP device will reply to an acknowledgment frame (ACK or BA) when receiving PPDUs sent by other STAs in the next low-latency service period.
  • ACK or BA acknowledgment frame
  • the frame exchange duration in the remaining time interval before the start time point of the delay service cycle will not exceed the start time point of the next low delay service cycle. If it is judged that the frame exchange duration to occur will exceed the next low delay time point At the start time point of the service period, the PPDU transmission or frame exchange is stopped.
  • the target duration is the time interval between the end time point when the access point device sends the target feedback frame and the start time point of the next low-latency service period (ie, the next low-latency service period). The remaining time interval before the start time point of the cycle), wherein the target feedback frame is a feedback frame for the first PPDU that has been sent by the target station, for example, as shown in FIG. 8 .
  • the above S310 may specifically include:
  • the access point device determines that the target station is not allowed to send the PPDU within the target duration
  • T 1 T min-PPDU +T s
  • T 1 T min-PPDU +T f +T s
  • T min-PPDU is the minimum PPDU transmission duration
  • T f is the transmission duration of the feedback frame
  • T s is the preset inter-frame interval duration.
  • the access point device determines that the target station is not allowed to send the PPDU within the target duration, the access point device stops the target station from acquiring transmission opportunities within the target duration.
  • the access point device stops the target station from acquiring a transmission opportunity within the target duration by setting the duration of the target feedback frame
  • the duration T tf of the target feedback frame satisfies: T tf ⁇ T f +T t , or, T tf ⁇ T t ,
  • T f is the transmission duration of the feedback frame
  • T t is the target duration
  • the access point device may add a duration in the duration (DURATION) field of the target feedback frame to set the duration T tf of the target feedback frame.
  • DURATION duration in the duration
  • the access point device determines that the target station is not allowed to send PPDUs within the target duration, the access point device stops the target station from sending PPDUs within the transmission opportunities acquired within the target duration.
  • the access point device sends the target feedback frame to the target station, where the target feedback frame includes a first field, and the first field is used to instruct the target station to stop sending PPDUs within the target duration .
  • the target feedback frame includes a block acknowledgment BA type or an acknowledgment ACK type for indicating to stop sending PPDUs.
  • the target station is a non-AP STA supporting enhanced function ACK or BA control frame 1, that is, the target feedback frame may be enhanced function ACK or BA control frame 1.
  • the access point device can instruct the target station to stop sending PPDUs after receiving an ACK frame or BA frame by adding a field to the enhanced ACK or BA control frame 1.
  • the target feedback frame can be as shown in Figure 9.
  • the BA type (Type) add the BA type or ACK type that carries the indication of "whether to stop sending PPDUs", and take one bit in the reserved bit (Reserved) as an indicator bit to indicate whether Stop sending PPDUs, for example, a value of "1" indicates to stop sending PPDUs, and a value of "0" indicates not to stop sending PPDUs; or vice versa.
  • the access point device determines that the target station is not allowed to send the PPDU within the target time period, the access point device starts the next low-latency service period by the first time Send an indication frame to the target station before the start time point of the second duration, where the indication frame is used to prohibit the target station from sending PPDUs, and the second duration is greater than or equal to the maximum duration of transmission opportunities available to the target station.
  • the target station may be a legacy STA (Legacy STA).
  • the indication frame includes a management frame or a control frame carrying information of quiet intervals, wherein the quiet interval at least includes the first time before the start time point of the next low-latency service period Two hours.
  • the access point device will start the next low-latency service cycle by a second time period before the start time point.
  • the second duration may be greater than or equal to the duration of the maximum transmission opportunity limit (TXOP limit) obtained by the legacy station (Legacy STA), as shown in FIG. 10 .
  • the above S310 may specifically include:
  • the access point device determines that the target station is allowed to send the PPDU within the target duration
  • T min-PPDU is the minimum PPDU transmission duration
  • T max-PPDU is the maximum PPDU transmission duration
  • T f is the transmission duration of the feedback frame
  • T s is the preset inter-frame interval duration.
  • the access point device when the access point device determines that the target station is allowed to send the PPDU within the target time period, the access point device sends the target feedback frame to the target station, where the target feedback frame includes a second field, the The second field is used to indicate the limited duration for the target station to send the PPDU within the target duration.
  • the target feedback frame includes a BA type or an ACK type for indicating a limited duration for transmitting the PPDU.
  • the target station is a non-AP STA that supports enhanced-function ACK or BA control frame 2, that is, the target feedback frame may be enhanced-function ACK or BA control frame 2.
  • the access point device can instruct the target station to limit the time limit for the target station to send PPDUs within the target time period after receiving the ACK frame or BA frame by adding a field to the enhanced ACK or BA control frame 2.
  • the target feedback frame can be as shown in Figure 11.
  • the BA type (Type)
  • add the BA type or ACK type that carries the indication of "limited duration of sending PPDU” and take one or more indication bits in the reserved bits (Reserved) to Indicates the time limit for sending PPDUs.
  • the limited duration TR satisfies: TR ⁇ T t -T s ,
  • T t is the target duration
  • T s is the preset inter-frame interval duration
  • the access point device when the access point device determines that the target station is allowed to send the PPDU within the target duration, the access point device sends a trigger frame to the target station, where the trigger frame is used to trigger the target station to send at least one PPDU, and the end time point of sending the at least one PPDU does not exceed the start time point of the next low-latency service period.
  • the AP device sends a trigger frame within the target duration, and the trigger frame is used to trigger the STA (target station) to send the second PPDU.
  • the STA After receiving the trigger frame, the STA sends the second PPDU, wherein, The STA finishes sending the second PPDU before the start time point of the next low-latency service period.
  • the feedback frame 2 is a feedback frame for the second PPDU.
  • the access point device when the access point device sends the trigger frame to the target station, the access point device stops the target station from acquiring a transmission opportunity within the target duration, and/or the access point The device stops the target station from sending PPDUs within the transmission opportunity acquired within the target duration.
  • the access point device determines that the target station is allowed to send the PPDU within the target duration
  • the access point device determines that the target station is allowed to send the PPDU once within the target duration. For example, as shown in FIG. 13 , the STA (target station) only sends the second PPDU within the target duration, where the feedback frame 2 is the feedback frame for the second PPDU.
  • the access point device may be based on the above example 1 or example 2 Restrict the target site to send PPDU;
  • the fourth duration T 4 satisfies: T 4 ⁇ T t -T s , T t is the target duration, and T s is the preset inter-frame interval duration.
  • the access point device may restrict the target station from sending PPDUs based on the foregoing example 1 or example 2 or example 3 ;
  • the fourth duration T 4 satisfies: T 4 ⁇ T t -T s , T t is the target duration, and T s is the preset inter-frame interval duration.
  • the above S310 may specifically include:
  • the access point device determines that the target station is allowed to send the PPDU within the target duration
  • T 5 T max-PPDU +T s
  • T 5 T max-PPDU +T f +T s
  • T max-PPDU is the maximum PPDU transmission duration
  • T f is the transmission duration of the feedback frame
  • T s is the preset inter-frame interval duration.
  • the preset inter-frame space duration includes a sum of durations of multiple short inter-frame spaces (SIFS).
  • SIFS short inter-frame spaces
  • the preset inter-frame interval duration includes twice the duration of the SIFS.
  • the above-mentioned feedback frame may be an Acknowledgement Acknowledgement (ACK) frame or a Block Acknowledgment (BA) frame.
  • ACK Acknowledgement Acknowledgement
  • BA Block Acknowledgment
  • the two above-mentioned ACK or BA control frames supporting enhanced functions are not only used in low-latency communication application scenarios based on reserved resource protection, but also can be used in multiple In the synchronous communication application scenario of link communication, for example, the alignment of PPDUs between multiple links, etc.
  • the access point device can determine whether the target site is allowed to send PPDUs within the target duration before the start time point of the next low-latency service period in the BSS, so as to ensure that the target site is about to send the PPDU. PPDUs do not cause delay or disruption of designated transmissions within the low-latency service period.
  • a STA (Low-Latency STA) supporting a low-latency service can reliably obtain a transmission opportunity and perform a low-latency service at the starting time point of the reserved service period (SP).
  • the transmission of delayed service data solves the "uncertainty" caused by the actual starting time of the low-latency service period (such as TWT SP) reserved for transmission by designated STAs in the Wi-Fi standard working mechanism due to the influence of other STAs' transmissions. This will affect the timely transmission of low-latency service data, thereby protecting the designated service cycle for low-latency service access and reducing the transmission delay of low-latency service data.
  • FIG. 14 shows a schematic block diagram of a site device 400 according to an embodiment of the present application.
  • the site device 400 includes:
  • a communication unit 410 configured to not send the physical layer protocol data unit PPDU when acquiring the transmission opportunity or within the acquired transmission opportunity when the target duration satisfies the first condition; and/or,
  • a communication unit 410 configured to send a PPDU when acquiring a transmission opportunity or within the acquired transmission opportunity when the target duration satisfies the second condition
  • the target duration is located before the start time point of the next low-latency service period in the basic service set BSS.
  • the target duration is a time interval between a start time point when the PPDU is to be sent and a start time point of the next low-latency service period.
  • the first condition includes that the first duration is greater than the target duration, and/or the The second condition includes that the first duration is less than or equal to the target duration;
  • T 1 T PPDU +T s
  • T 1 T PPDU +T f +T s
  • T PPDU is the transmission duration of the PPDU
  • T f is the transmission duration of the feedback frame
  • T s is the preset inter-frame interval duration.
  • the first condition when the duration of the PPDU is not determined, includes that the second duration is greater than the target duration, and/or the second condition includes that the second duration is less than or equal to the target duration;
  • T 2 T min-PPDU +T s
  • T 2 T min-PPDU +T f +T s
  • T min-PPDU is the minimum PPDU transmission duration
  • T f is the duration of the feedback frame
  • T s is the preset inter-frame interval duration.
  • the station device determines to send the PPDU when acquiring the transmission opportunity or within the acquired transmission opportunity
  • T PPDU of the PPDU satisfies: T PPDU ⁇ T t -T s , or, T PPDU ⁇ T t -(T f +T s ),
  • T t is the target duration
  • T f is the transmission duration of the feedback frame
  • T s is the preset inter-frame interval duration.
  • the site device 400 further includes: a processing unit 420,
  • the processing unit is configured to trigger a rollback process.
  • the target duration is the time interval between the start time point of the transmission sequence of PPDUs to be sent and the start time point of the next low-latency service period.
  • the first condition includes that the sixth duration is greater than the target duration, and/or the second condition includes that the sixth duration is less than or equal to the target duration;
  • T 6 T PPDU transmission sequence
  • T 6 T PPDU transmission sequence +T s
  • T PPDU transmission sequence is the transmission duration of the PPDU transmission sequence to be sent, and T s is the preset inter-frame interval duration.
  • the site device 400 further includes: a processing unit 420,
  • the communication unit 410 is configured to stop sending the transmission sequence of the PPDU to be sent, and the processing unit 420 is configured to trigger a fallback process.
  • the site device 400 further includes: a processing unit 420, wherein:
  • the processing unit 420 When the processing unit 420 is configured to start a transmission opportunity outside the low-latency service period, it does not consider whether the end time point of the transmission opportunity exceeds the start time point of the next low-latency service period, wherein within the transmission opportunity A plurality of PPDU transmission sequences to be sent, the plurality of PPDU transmission sequences including the to-be-sent PPDU transmission sequence;
  • the processing unit 420 is configured to detect in advance whether the PPDU transmission sequence to be sent exceeds the starting point of any low-latency service period when the PPDU transmission sequence is sent;
  • the communication unit 410 is further configured to stop the transmission of the to-be-sent PPDU transmission sequence, and the processing The unit 420 is used to trigger the rollback process.
  • the duration setting of the frame sent by the station device adopts a single protection mode.
  • the site device 400 further includes: a processing unit 420, wherein:
  • the processing unit 420 is configured to acquire transmission opportunities outside the low-latency service period
  • the processing unit 420 is configured to start the transmission opportunity for the duration of the transmission opportunity Set to the seventh duration, the starting time of the seventh duration is the time to obtain the transmission opportunity, the ending time of the seventh duration is not later than the starting time of the next low-latency service cycle, and the first The time interval between the end time point of the seven-duration service period and the start time point of the next low-latency service period is less than or equal to the preset inter-frame interval duration.
  • the site device 400 further includes: a processing unit 420, wherein:
  • the processing unit 420 is configured to acquire a transmission opportunity outside the low-latency service period, and the end time point of the transmission opportunity exceeds the start time point of the next low-latency service period;
  • the processing unit 420 is configured to set the duration of the transmission opportunity to an eighth duration when the transmission opportunity is activated, the starting time point of the eighth duration is the time point at which the transmission opportunity is acquired, and the end time point of the eighth duration Exceeds the start time point of the next low-latency service cycle;
  • the last frame transmitted by the site device before the start time point of the next low-latency service period is the contention-free end frame, and the transmission end time point of the contention-free end frame is the same as that of the next low-latency end frame.
  • the time interval between the start time points of the delay service period is less than or equal to the preset inter-frame interval duration.
  • the site device 400 when the site device is a site device in an energy-saving state, the site device 400 further includes: a processing unit 420, wherein:
  • the processing unit 420 is configured to enter the sleep state before the start time point of the next low-latency service period, and maintain the sleep state at least until the start time point of the next low-latency service period.
  • T PPDU transmission sequence is the transmission duration of the PPDU transmission sequence to be sent, and T s is the preset inter-frame interval duration.
  • the communication unit 410 is further configured to acquire the preset threshold through a restricted TWT element or a restricted TWT service period announcement element that carries the preset threshold.
  • the preset inter-frame interval duration includes the duration of the short inter-frame interval SIFS.
  • the communication unit 410 is further configured to, when the station device determines that the PPDU is not to be sent when the transmission opportunity is acquired or within the acquired transmission opportunity, and the target duration is sufficient to send the contention-free end control frame Next, the contention-free end control frame is sent within the target duration.
  • the next low-latency traffic period includes a traffic period of a constrained target wake-up time TWT.
  • the communication unit 410 is further configured to acquire the restricted TWT parameter through the restricted TWT element or the restricted TWT service period announcement element.
  • the restricted TWT parameter includes start time point information of the service period of the next restricted TWT.
  • the restricted TWT element is a beacon frame, probe response frame, association response frame, reassociation response frame, sent by at least one of the management frames; or,
  • the restricted TWT service period announcement element is the beacon frame, probe response frame, association response frame, reassociation response frame, sent by at least one of the management frames.
  • the above-mentioned communication unit may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system-on-chip.
  • the site device 400 may correspond to the site device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the site device 400 are respectively for realizing the method shown in FIG. 5 .
  • the corresponding process of the site device in 200 is not repeated here for brevity.
  • FIG. 15 shows a schematic block diagram of an access point device 500 according to an embodiment of the present application.
  • the access point device 500 includes:
  • the processing unit 510 is configured to determine whether the target station is allowed to send the physical layer protocol data unit PPDU within the target duration before the start time point of the next low-latency service period in the basic service set BSS.
  • the target duration is the time interval between the end time point when the access point device sends the target feedback frame and the start time point of the next low-latency service period, where the target feedback frame is A feedback frame for the first PPDU that the target station has sent.
  • the processing unit 510 is specifically used for:
  • the target station In the case that the first duration is greater than the target duration, it is determined that the target station is not allowed to send the PPDU within the target duration;
  • T 1 T min-PPDU +T s
  • T 1 T min-PPDU +T f +T s
  • T min-PPDU is the minimum PPDU transmission duration
  • T f is the transmission duration of the feedback frame
  • T s is the preset inter-frame interval duration.
  • the processing unit 510 is further configured to stop the target station from acquiring a transmission opportunity within the target duration.
  • the processing unit 510 is specifically used for:
  • the duration T tf of the target feedback frame satisfies: T tf ⁇ T f +T t , or, T tf ⁇ T t ,
  • T f is the transmission duration of the feedback frame
  • T t is the target duration
  • the processing unit 510 is further configured to stop the target station from sending the PPDU within the transmission opportunity acquired within the target duration.
  • the access point device further includes a communication unit 520,
  • the communication unit 520 is configured to send the target feedback frame to the target station, wherein the target feedback frame includes a first field, and the first field is used to instruct the target station to stop sending PPDUs within the target duration.
  • the target feedback frame includes a block acknowledgment BA type or an acknowledgment ACK type for indicating to stop sending PPDUs.
  • the access point device further includes a communication unit 520,
  • the communication unit 520 is configured to send an indication frame to the target station before the start time point of the next low-latency service period by a second time period, wherein the indication frame is used to prohibit the target station Send a PPDU, and the second duration is greater than or equal to the maximum duration of the transmission opportunity available to the target station.
  • the indication frame includes a management frame or a control frame carrying information of a silence interval, wherein the silence interval at least includes the second time period before the start time point of the next low-latency service period.
  • the processing unit 510 is specifically used for:
  • the target duration is greater than or equal to the first duration, and the target duration is less than the third duration, determine that the target site is allowed to send PPDUs within the target duration;
  • T min-PPDU is the minimum PPDU transmission duration
  • T max-PPDU is the maximum PPDU transmission duration
  • T f is the transmission duration of the feedback frame
  • T s is the preset inter-frame interval duration.
  • the access point device further includes a communication unit 520,
  • the communication unit 520 is configured to send the target feedback frame to the target station, where the target feedback frame includes a second field, and the second field is used to indicate a limited duration for the target station to send the PPDU within the target duration.
  • the target feedback frame includes a BA type or an ACK type for indicating a limited duration for transmitting the PPDU.
  • the limited duration TR satisfies: TR ⁇ T t -T s ,
  • T t is the target duration
  • T s is the preset inter-frame interval duration
  • the access point device further includes a communication unit 520,
  • the communication unit 520 is configured to send a trigger frame to the target station, where the trigger frame is used to trigger the target station to send at least one PPDU, and the end time point of sending the at least one PPDU does not exceed the start of the next low-latency service cycle start time point.
  • the processing unit 510 is further configured to stop the target station from acquiring the transmission opportunity within the target duration, and/or stop the target station from sending PPDUs within the transmission opportunity acquired within the target duration.
  • the processing unit 510 is specifically used for:
  • the target station is allowed to send a PPDU once within the target duration.
  • the PPDU length required for the queue indicated in the buffer status report BSR reported by the target site does not exceed a fourth duration
  • the fourth duration T 4 satisfies: T 4 ⁇ T t -T s , T t is the target duration, and T s is the preset inter-frame interval duration.
  • the length of the PPDU required to indicate the queue in the BSR reported by the target site exceeds the fourth duration
  • the fourth duration T 4 satisfies: T 4 ⁇ T t -T s , T t is the target duration, and T s is the preset inter-frame interval duration.
  • the processing unit 510 is specifically used for:
  • the target station determines that the target station is allowed to send the PPDU within the target duration
  • T 5 T max-PPDU +T s
  • T 5 T max-PPDU +T f +T s
  • T max-PPDU is the maximum PPDU transmission duration
  • T f is the transmission duration of the feedback frame
  • T s is the preset inter-frame interval duration.
  • the preset inter-frame interval duration includes a sum of durations of multiple short inter-frame intervals SIFS.
  • the preset inter-frame interval duration includes 2 times the duration of SIFS.
  • the next low-latency traffic period includes a traffic period of a constrained target wake-up time TWT.
  • the above-mentioned communication unit may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system-on-chip.
  • the aforementioned processing unit may be one or more processors.
  • the access point device 500 may correspond to the access point device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the access point device 500 are for the purpose of The corresponding process for implementing the access point device in the method 300 shown in FIG. 7 is not repeated here for brevity.
  • FIG. 16 is a schematic structural diagram of a communication device 600 provided by an embodiment of the present application.
  • the communication device 600 shown in FIG. 16 includes a processor 610, and the processor 610 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.
  • the communication device 600 may also include a memory 620 .
  • the processor 610 may call and run a computer program from the memory 620 to implement the methods in the embodiments of the present application.
  • the memory 620 may be a separate device independent of the processor 610 , or may be integrated in the processor 610 .
  • the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, specifically, may send information or data to other devices, or Receive information or data sent by other devices.
  • the transceiver 630 may include a transmitter and a receiver.
  • the transceiver 630 may further include antennas, and the number of the antennas may be one or more.
  • the communication device 600 may specifically be the access point device of the embodiments of the present application, and the communication device 600 may implement the corresponding processes implemented by the access point device in each method of the embodiments of the present application. For the sake of brevity , and will not be repeated here.
  • the communication device 600 may specifically be the site device of the embodiments of the present application, and the communication device 600 may implement the corresponding processes implemented by the site device in each method of the embodiments of the present application. Repeat.
  • FIG. 17 is a schematic structural diagram of an apparatus according to an embodiment of the present application.
  • the apparatus 700 shown in FIG. 17 includes a processor 710, and the processor 710 can call and run a computer program from a memory, so as to implement the method in this embodiment of the present application.
  • the apparatus 700 may also include a memory 720 .
  • the processor 710 may call and run a computer program from the memory 720 to implement the methods in the embodiments of the present application.
  • the memory 720 may be a separate device independent of the processor 710 , or may be integrated in the processor 710 .
  • the apparatus 700 may also include an input interface 730 .
  • the processor 710 may control the input interface 730 to communicate with other devices or chips, and specifically, may acquire information or data sent by other devices or chips.
  • the apparatus 700 may also include an output interface 740 .
  • the processor 710 can control the output interface 740 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.
  • the apparatus may be applied to the access point device in the embodiments of the present application, and the apparatus may implement the corresponding processes implemented by the access point device in each method of the embodiments of the present application. For brevity, here No longer.
  • the apparatus can be applied to the site equipment in the embodiments of the present application, and the apparatus can implement the corresponding processes implemented by the site equipment in each method of the embodiments of the present application, which is not repeated here for brevity.
  • the devices mentioned in the embodiments of the present application may also be chips.
  • it can be a system-on-chip, a system-on-a-chip, a system-on-a-chip, or a system-on-a-chip.
  • FIG. 18 is a schematic block diagram of a communication system 800 provided by an embodiment of the present application. As shown in FIG. 18 , the communication system 800 includes a station device 810 and an access point device 820 .
  • the site device 810 may be used to implement the corresponding functions implemented by the site device in the above method
  • the access point device 820 may be used to implement the corresponding functions implemented by the access point device in the above method. For brevity, It is not repeated here.
  • the processor in this embodiment of the present application may be an integrated circuit chip, which has a signal processing capability.
  • each step of the above method embodiment may be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software.
  • the above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Programming logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • 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 or the like.
  • the steps of the methods disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • the software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.
  • the memory in this embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically programmable read-only memory (Erasable PROM, EPROM). Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • Volatile memory may be Random Access Memory (RAM), which acts as an external cache.
  • RAM Static RAM
  • DRAM Dynamic RAM
  • SDRAM Synchronous DRAM
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM DDR SDRAM
  • enhanced SDRAM ESDRAM
  • synchronous link dynamic random access memory Synchlink DRAM, SLDRAM
  • Direct Rambus RAM Direct Rambus RAM
  • the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), 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 connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.
  • Embodiments of the present application further provide a computer-readable storage medium for storing a computer program.
  • the computer-readable storage medium can be applied to the access point device in the embodiments of the present application, and the computer program causes the computer to execute the corresponding processes implemented by the access point device in each method of the embodiments of the present application , and are not repeated here for brevity.
  • the computer-readable storage medium may be applied to the site device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the site device in each method of the embodiments of the present application. For brevity, It is not repeated here.
  • Embodiments of the present application also provide a computer program product, including computer program instructions.
  • the computer program product may be applied to the access point device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the access point device in each method of the embodiments of the present application, For brevity, details are not repeated here.
  • the computer program product may be applied to the site device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the site device in each method of the embodiments of the present application.
  • the computer program instructions cause the computer to execute the corresponding processes implemented by the site device in each method of the embodiments of the present application.
  • the embodiments of the present application also provide a computer program.
  • the computer program can be applied to the access point device in the embodiments of the present application, and when the computer program runs on the computer, the computer program is implemented by the access point device in each method of the embodiments of the present application.
  • the corresponding process for the sake of brevity, will not be repeated here.
  • the computer program may be applied to the site device in the embodiments of the present application, and when the computer program runs on the computer, the computer executes the corresponding processes implemented by the site device in each method of the embodiments of the present application, For brevity, details are not repeated here.
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus 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 shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium.
  • the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution.
  • the computer software product is stored in a storage medium, including Several instructions are 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 the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

Landscapes

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

Abstract

本申请实施例提供了一种无线通信的方法、站点设备和接入点设备,确保基本服务集(BSS)内其他站点不影响支持低时延业务的站点在指定的业务周期(SP)内进行及时的帧交换。该无线通信的方法,包括:站点设备根据基本服务集(BSS)内的下一个低时延业务周期的起始点之前的目标时长内允许的帧交换,确定在获取传输机会时或者在获取的传输机会内是否发送物理层协议数据单元(PPDU)。

Description

无线通信的方法、站点设备和接入点设备
本申请要求于2021年02月07日提交中国专利局、申请号为PCT/CN2021/075885、发明名称为“无线通信的方法、站点设备和接入点设备”的PCT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
本申请实施例涉及通信领域,并且更具体地,涉及一种无线通信的方法、站点设备和接入点设备。
背景技术
目标唤醒时间(Target Wake Time,TWT)的引入允许接入点(Access Point,AP)设备管理基本服务集(Basic Service Set,BSS)的行为以减轻站点(Station,STA)间的竞争,同时TWT具备按照时间指定特定STA在业务周期(Service Period,SP)进行帧交换的调度特性。然而,BSS内其他STA可能影响支持低时延业务的STA在指定的业务周期(SP)内进行及时的帧交换。
发明内容
本申请实施例提供了一种无线通信的方法、站点设备和接入点设备,确保基本服务集(BSS)内其他站点不影响支持低时延业务的站点在指定的业务周期(SP)内进行及时的帧交换。
第一方面,提供了一种无线通信的方法,该方法包括:
在目标时长满足第一条件的情况下,站点设备在获取传输机会时或者在获取的传输机会内不发送PPDU;和/或,
在目标时长满足第二条件的情况下,站点设备在获取传输机会时或者在获取的传输机会内发送PPDU;
其中,该目标时长位于BSS内的下一个低时延业务周期的起始时间点之前。
第二方面,提供了一种无线通信的方法,该方法包括:
接入点设备确定BSS内的下一个低时延业务周期的起始时间点之前的目标时长内是否允许目标站点发送PPDU。
第三方面,提供了一种站点设备,用于执行上述第一方面中的方法。
具体地,该站点设备包括用于执行上述第一方面中的方法的功能模块。
第四方面,提供了一种接入点设备,用于执行上述第二方面中的方法。
具体地,该接入点设备包括用于执行上述第二方面中的方法的功能模块。
第五方面,提供了一种站点设备,包括处理器和存储器。该存储器用于存储计算机程序,该处理器用于调用并运行该存储器中存储的计算机程序,执行上述第一方面中的方法。
第六方面,提供了一种接入点设备,包括处理器和存储器。该存储器用于存储计算机程序,该处理器用于调用并运行该存储器中存储的计算机程序,执行上述第二方面中的方法。
第七方面,提供了一种装置,用于实现上述第一方面至第二方面中的任一方面中的方法。
具体地,该装置包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有该装置的设备执行如上述第一方面至第二方面中的任一方面中的方法。
第八方面,提供了一种计算机可读存储介质,用于存储计算机程序,该计算机程序使得计算机执行上述第一方面至第二方面中的任一方面中的方法。
第九方面,提供了一种计算机程序产品,包括计算机程序指令,所述计算机程序指令使得计算机执行上述第一方面至第二方面中的任一方面中的方法。
第十方面,提供了一种计算机程序,当其在计算机上运行时,使得计算机执行上述第一方面至第二方面中的任一方面中的方法。
通过上述第一方面的技术方案,站点设备可以根据BSS内的下一个低时延业务周期的起始时间点之前的目标时长所满足的条件,在获取传输机会时或者在获取的传输机会内发送PPDU,和/或,在获取传输机会时或者在获取的传输机会内不发送PPDU,从而可以确保站点设备即将发送的PPDU不会造成低时延业务周期内的指定传输受到延迟或破坏。
通过上述第二方面的技术方案,接入点设备可以确定BSS内的下一个低时延业务周期的起始时间点之前的目标时长内是否允许目标站点发送PPDU,从而可以确保目标站点即将发送的PPDU不会造成低时延业务周期内的指定传输受到延迟或破坏。
附图说明
图1是本申请实施例应用的一种通信系统架构的示意性图。
图2是本申请提供的一种受限的TWT SP的示意性图。
图3是本申请提供的一种RTS/CTS的示意性图。
图4是本申请提供的一种PPDU过长造成SP内的传输受影响的示意性图。
图5是根据本申请实施例提供的一种无线通信的方法的示意性流程图。
图6是根据本申请实施例提供的一种目标时长的示意性图。
图7是根据本申请实施例提供的另一种无线通信的方法的示意性流程图。
图8是根据本申请实施例提供的另一种目标时长的示意性图。
图9是根据本申请实施例提供的一种目标反馈帧的示意性图。
图10是根据本申请实施例提供的一种指示帧的示意性图。
图11是根据本申请实施例提供的另一种目标反馈帧的示意性图。
图12是根据本申请实施例提供的一种触发帧的示意性图。
图13是根据本申请实施例提供的一种仅允许发送一次PPDU的示意性图。
图14是根据本申请实施例提供的一种站点设备的示意性框图。
图15是根据本申请实施例提供的一种接入点设备的示意性框图。
图16是根据本申请实施例提供的一种通信设备的示意性框图。
图17是根据本申请实施例提供的一种装置的示意性框图。
图18是根据本申请实施例提供的一种通信系统的示意性框图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。针对本申请中的实施例,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,都属于本申请保护的范围。
本申请实施例的技术方案可以应用于各种通信系统,例如:无线局域网(Wireless Local Area Networks,WLAN)、无线保真(Wireless Fidelity,WiFi)或其他通信系统等。
示例性的,本申请实施例应用的通信系统100如图1所示。该通信系统100可以包括接入点(Access Point,AP)设备110,以及通过接入点设备110接入网络的站点(STATION,STA)设备120。
在本申请实施例中,STA设备可以部署在陆地上,包括室内或室外、手持、穿戴或车载;也可以部署在水面上(如轮船等);还可以部署在空中(例如飞机、气球和卫星上等)。
在本申请实施例中,STA设备可以是手机(Mobile Phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(Virtual Reality,VR)设备、增强现实(Augmented Reality,AR)设备、工业控制(industrial control)中的无线设备、无人驾驶(self driving)中的无线设备、远程医疗(remote medical)中的无线设备、智能电网(smart grid)中的无线设备、运输安全(transportation safety)中的无线设备、智慧城市(smart city)中的无线设备或智慧家庭(smart home)中的无线设备等。
作为示例而非限定,在本申请实施例中,STA设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备,是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称,如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上,或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备,更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能,例如:智能手表或智能眼镜等,以及只专注于某一类应用功能,需要和其它设备如智能手机配合使用,如各类进行体征监测的智能手环、智能首饰等。
图1示例性地示出了一个AP和两个STA,可选地,该通信系统100可以包括多个AP以及包括其它数量的STA,本申请实施例对此不做限定。
应理解,本申请实施例中网络/系统中具有通信功能的设备可称为通信设备。以图1示出的通信系统100为例,通信设备可包括具有通信功能的接入点110和站点120,接入点110和站点120可以为上文所述的具体设备,此处不再赘述;通信设备还可包括通信系统100中的其他设备,例如网络控制器、网关等其他网络实体,本申请实施例中对此不做限定。
应理解,本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”,仅仅是一种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。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。
应理解,在本申请的实施例中提到的“指示”可以是直接指示,也可以是间接指示,还可以是表示具有关联关系。举例说明,A指示B,可以表示A直接指示B,例如B可以通过A获取;也可以表示A间接指示B,例如A指示C,B可以通过C获取;还可以表示A和B之间具有关联关系。
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。本申请的说明书和权利要求书及所述附图中的术语“第一”、“第二”、“第三”和“第四”等是用于区别不同对象,而不是用于描述特定顺序。此外,术语“包括”和“具有”以及它们任何变形,意图在于覆盖不排他的包含。
在本申请实施例的描述中,术语“对应”可表示两者之间具有直接对应或间接对应的关系,也可以表示两者之间具有关联关系,也可以是指示与被指示、配置与被配置等关系。
本申请实施例中,“预定义”可以通过在设备(例如,包括终端设备和网络设备)中预先保存相应的代码、表格或其他可用于指示相关信息的方式来实现,本申请对于其具体的实现方式不做限定。比如预定义可以是指协议中定义的。
本申请实施例中,所述“协议”可以指通信领域的标准协议,例如可以包括WiFi协议以及应用于未来的WiFi通信系统中的相关协议,本申请对此不做限定。
为便于更好的理解本申请实施例,对本申请相关的目标唤醒时间(Target Wake Time,TWT)进行说明。
TWT定时唤醒机制首次出现在802.11ah“Wi-Fi HaLow”标准中,其用于支持大规模物联网环境下的节能工作。在802.11ax中,TWT机制在802.11ah的基础上,已经被修改为支持基于触发的上行链路传输,从而扩展了TWT工作的范围。
在TWT中,STA设备和AP设备之间建立了一张时间表(该时间表是STA设备和AP设备协定的),时间表是由TWT时间周期所组成的。当STA设备和AP设备所协商的时间周期到达后,STA设备会醒来,并等待AP设备发送的触发帧,并进行一次数据交换。当本次传输完成后,返回睡眠状态。每一个STA设备可以和AP设备都会进行独立的协商,每一个STA设备都具有单独的TWT时间周期。
TWT允许AP设备管理基本服务集(Basic Service Set,BSS)的行为以减轻站点间的竞争,同时TWT具备按照时间指定特定STA在业务周期(Service Period,SP)进行帧交换的调度特性,因此在802.11be标准制定过程中,提出通过优化TWT机制来推进802.11be的低时延技术研究。然而,如果TWT SP开始时,不支持TWT或者不被指定在TWT SP中进行传输的STA在其TXOP未结束的时候会继续占用网络信道资源,因此影响此TWT SP中指定STA的传输;从而导致指定STA的UL数据的延迟不可预测性。
TWT的一种改进方案,如图2所示,建议在TWT中增加规则:在一个受限的(Restricted)TWT SP开始前,应该结束其他常规(Regular)STA(即不支持低时延业务的STA)的传输机会(Transmission Opportunity,TXOP),在TXOP截止前终止该STA的TXOP,以便于支持低时延业务的STA(Low-latency STA)在指定SP内进行帧交换。
其中,请求发送(Request To Send,RTS)或允许发送(Clear To Send,CTS)协议,相当于握手协议,用于解决隐藏终端造成的帧交换冲突问题。在一个分布式帧间间隔(Distributed Inter-frame Spacing,DIFS)之后启用RTS,当RTS/CTS启用时,一个站点在发送数据帧之前先发送一个RTS帧,当接收方愿意接收数据帧时,它会响应一个CTS帧。在RTS/CTS交换之后,开启一个时间窗口(在CTS帧中标识),用于作为发送方的站点向确认接收的站点发送数据帧。接收方在接收完数据帧时,经过短帧间间隔(Short Interframe Space,SIFS)反馈肯定应答(Acknowledgement,ACK)或块确认(Block Acknowledgment,BA)给发送方确认收到数据帧,如图3所示。
上述图2所示的改进方案虽然能增加TWT SP内AP和成员STA的信道接入机会,但是只能部分解决TWT SP的开始时间的“不确定”问题,对于确保支持低时延业务的STA(Low-Latency STA)的业务周期(SP)不被其他不支持低时延业务的STA占用的可靠性不强,比如:只能在SP来临前提前截止其他传输的TXOP,但是,如果在SP之前已经在传比较长的物理层协议数据单元(Physical layer protocol data unit,PPDU),就无法进行截止。
如图4所示,STA2(比如不支持低时延业务的STA)在获得传输机会TXOP后,发送PPDU,由于没有考虑低时延业务起始点,造成PPDU长度过长,使得PPDU的发送时间与STA1的低时延业务周期重叠,造成STA1低时延业务周期内低时延业务数据发送的延迟。即使在STA2的TXOP终结点之前进行截止也无法改变SP被影响的情形。
基于上述问题,本申请提出了一种低时延业务传输方案,可以确保BSS内其他站点不影响支持低时延业务的站点在指定的业务周期(SP)内进行及时的帧交换。
需要说明的是,站点设备(STA设备)也可以称之为非接入点站点(Non-AP STA)。
以下通过具体实施例详述本申请的技术方案。
图5是根据本申请实施例的无线通信的方法200的示意性流程图,如图5所示,该方法200可以包括如下内容中的至少部分内容:
S210,在目标时长满足第一条件的情况下,站点设备在获取传输机会时或者在获取的传输机会内不发送PPDU;和/或,在目标时长满足第二条件的情况下,站点设备在获取传输机会时或者在获取的传输机会内发送PPDU;其中,该目标时长位于BSS内的下一个低时延业务周期的起始时间点之前。
在本申请实施例中,在支持低时延业务的操作模式中,为了确保BSS内其他站点不影响支持低时延业务的站点在指定的业务周期(SP)内进行及时的帧交换,站点设备可以根据BSS内的下一个低时延业务周期的起始时间点之前的目标时长所满足的条件,在 获取传输机会时或者在获取的传输机会内发送PPDU,和/或,在获取传输机会时或者在获取的传输机会内不发送PPDU。
在一些实施例中,该下一个低时延业务周期不是配置给该站点设备进行帧交换的。
在一些实施例中,站点设备例如可以是极高吞吐量(Extremely High Throughput,EHT)的站点(STA),也可以是其他的STA,如遗留STA(即上一代的STA),本申请对此并不限定。
在一些实施例中,该下一个低时延业务周期可以包括受限TWT的业务周期(Restricted TWT SP)。
在一些实施例中,AP设备可以通过低时延业务周期指示帧(如信标帧(Beacon)、或TWT响应帧等)来指示预先分配的低时延业务周期,包括相关低时延业务周期的起始时间点与截止时间点,以供指定的支持低时延业务的站点在相应的低时延业务周期进行帧交换。
也即,站点设备可以基于AP设备发送的低时延业务周期指示帧(如信标帧(Beacon)、或TWT响应帧等)获取BSS内的下一个低时延业务周期的信息,包括该低时延业务周期的起始时间点和/或截止时间点;同时获取该下一个低时延业务周期不是配置给该站点设备进行帧交换的。
在一些实施例中,该站点设备通过受限TWT元素或受限TWT业务周期通告元素获取该受限TWT参数。
在一些实施例中,该受限TWT参数包括下一个受限TWT的业务周期的起始时间点信息。
在一些实施例中,该受限TWT元素为该站点设备所关联的接入点设备通过携带该受限TWT元素的信标帧、探测响应帧、关联响应帧、重关联响应帧、管理帧中的至少之一发送的。
在一些实施例中,该受限TWT业务周期通告元素为该站点设备所关联的接入点设备通过携带该受限TWT业务周期通告元素的信标帧、探测响应帧、关联响应帧、重关联响应帧、管理帧中的至少之一发送的。
在一些实施例中,该受限TWT元素为最新接收到的受限TWT元素。
在一些实施例中,该受限TWT业务周期通告元素为最新接收到的受限TWT业务周期通告元素。
具体例如,站点设备通过最新收到的受限TWT元素(Restricted TWT element)或受限TWT业务周期通告元素(Restricted TWT SP Announcement element)来获取Restricted TWT参数值,包括下一个低时延业务周期的起始时间点信息,其中Restricted TWT element或Restricted TWT SP Announcement element是站点设备所关联的接入点(AP)设备通过携带该元素的信标帧、探测响应帧、关联响应帧、以及重关联响应帧与其他的管理帧来发送。
在一些实施例中,该目标时长为拟发送该PPDU的起始时间点与该下一个低时延业务周期的起始时间点之间的时间间隔,例如,如图6所示。
例如,拟发送PPDU的起始时间点(T TXOPST)与下一个低时延业务周期的起始时间点(T LLSPST)之间的时间间隔可以是Difference(T TXOPST,T LLSPST),也即目标时长可以是Difference(T TXOPST,T LLSPST)。
在一些实施例中,在该PPDU的传输时长已确定的情况下,该第一条件包括第一时长大于目标时长,和/或,该第二条件包括第一时长小于或等于目标时长;
其中,该第一时长T 1满足:T 1=T PPDU+T s,或者,T 1=T PPDU+T f+T s
T PPDU为该PPDU的传输时长,T f为反馈帧的传输时长,T s为预设的帧间间隔时长。
在一些实施例中,在该PPDU的传输时长未确定的情况下,该第一条件包括第二时长大于目标时长,和/或,该第二条件包括第二时长小于或等于目标时长;
其中,该第二时长T 2满足:T 2=T min-PPDU+T s,或者,T 2=T min-PPDU+T f+T s
T min-PPDU为最小的PPDU传输时长,T f为反馈帧的时长,T s为预设的帧间间隔时长。
在一些实施例中,在该站点设备确定在获取传输机会时或者在获取的传输机会内发送该PPDU的情况下,
该PPDU的传输时长T PPDU满足:T PPDU≤T t-T s,或者,T PPDU≤T t-(T f+T s),
T t为该目标时长,T f为反馈帧的传输时长,T s为预设的帧间间隔时长。
在一些实施例中,在该目标时长满足该第一条件的情况下,该站点设备触发回退流程。
具体例如,non-AP STA在Restricted TWT业务周期(SP)之外根据增强分布式信道接入(Enhanced Distributed Channel Access,EDCA)规则回退(backoff)到0(即回退计数器到0值)并取得发送权利或获取一个传输机会时,当预期的传输会超过任意Restricted TWT的业务周期的起始点,因此不传输一个帧,将触发回退(backoff)流程。
在一些实施例中,该目标时长为拟发送PPDU传输序列的起始时间点与下一个低时延业务周期的起始时间点之间的时间间隔。
在一些实施例中,该第一条件包括第六时长大于该目标时长,和/或,该第二条件包括第六时长小于或等于该目标时长;
其中,该第六时长T 6满足:T 6=T PPDU传输序列,或者,T 6=T PPDU传输序列+T s
T PPDU传输序列为该拟发送PPDU传输序列的传输时长,T s为预设的帧间间隔时长。
在一些实施例中,在该目标时长满足该第一条件的情况下,该站点设备停止该拟发送PPDU传输序列的发送,并触发回退流程。
在一些实施例中,该站点设备在低时延业务周期之外启动传输机会时,未考虑该传输机会的结束时间点是否超过下一个低时延业务周期的起始时间点,其中,在该传输机会内拟发送多个PPDU传输序列,该多个PPDU传输序列包括该拟发送PPDU传输序列;该站点设备在进行PPDU传输序列发送时提前探测将要发送的PPDU传输序列是否超过任意低时延业务周期的起始点;在该传输机会期间,当该拟发送PPDU传输序列的结束时间点超过下一个低时延业务周期的起始点时,该站点设备将停止该拟发送PPDU传输序列的发送,并触发回退流程。
在一些实施例中,该站点设备发送的帧的时长设置采用单一保护方式。
具体例如,在Restricted TWT业务周期(SP)之外,non-AP STA启动一个TXOP并预期在TXOP期间发送多个PPDU传输序列(每个PPDU传输序列包括至少一个PPDU传输与可能的确认帧),同时,在启动TXOP时未考虑TXOP的结束时间点是否超过任意Restricted TWT的业务周期的起始点,而是在进行每个传输序列发送时都会提前探测将要发送的这个传输序列是否超过任意Restricted TWT的业务周期的起始点,因此,作为一个传输机会拥有者(TXOP holder),在TXOP期间当将要启动的PPDU传输序列的结束时间会超过任意Restricted TWT的业务周期的起始点,将停止该PPDU传输序列的发送,并触发回退(backoff)流程。在此场景中,non-AP STA发送的帧的时长(Duration)设置采用单个保护(single protection)方式。
在一些实施例中,该站点设备在低时延业务周期之外获取传输机会;
当该传输机会可设的最大时长对应的结束点达到或超过下一个低时延业务周期的起始时间点的情况下,该站点设备在启动该传输机会时将该传输机会的时长设置为第七时长,该第七时长的起始时间点为获取该传输机会的时间,该第七时长的结束时间点不晚于下一个低时延业务周期的起始时间点,且该第七时长的结束时间点与下一个低时延业务周期的起始时间点之间的时间间隔小于或等于预设的帧间间隔时长。
具体例如,在Restricted TWT业务周期(SP)之外,当non-AP STA获取一个TXOP,当该TXOP可设的最大时长对应的结束时间点达到或超过最近的Restricted TWT的业务周期的起始时间点而需要提前结束TXOP时,为确保TXOP的结束时间点与最近的 Restricted TWT的业务周期的起始时间点之间的时间间隔等于或小于SIFS,non-AP STA在启动TXOP时把TXOP时长设置为从获取TXOP的起始时间点与调整的TXOP结束时间点之间的时长,其中,调整的TXOP结束时间点不晚于最近的Restricted TWT的业务周期的起始点,但不比最近的Restricted TWT的业务周期的起始点早SIFS时长以上的时间间隔。
在一些实施例中,该站点设备在低时延业务周期之外获取传输机会,且该传输机会的结束时间点超过下一个低时延业务周期的起始时间点;该站点设备在启动该传输机会时将该传输机会的时长设置为第八时长,该第八时长的起始时间点为获取该传输机会的时间点,该第八时长的结束时间点超过下一个低时延业务周期的起始时间点;其中,在该传输机会内,该站点设备在下一个低时延业务周期的起始时间点之前传输的最后一个帧为免竞争结束帧,且该免竞争结束帧的传输结束时间点与下一个低时延业务周期的起始时间点之间的时间间隔小于或等于预设的帧间间隔时长。
具体例如,在Restricted TWT业务周期(SP)之外,当non-AP STA获取一个TXOP,但预期时长的TXOP的结束时间点会超过最近的Restricted TWT的业务周期的起始点而需要提前结束TXOP时,non-AP STA在启动TXOP时把TXOP时长设置为从获取TXOP的起始时间点与预期的TXOP结束时间点之间的时长,其中预期的TXOP结束时间点超过最近的Restricted TWT的业务周期的起始点,为确保TXOP的结束时间点与最近的Restricted TWT的业务周期的起始点之间的时间间隔等于或小于SIFS,non-AP STA在TXOP期间,在最近的Restricted TWT的业务周期的起始点之前传输的最后一个帧为CF-End帧,且CF-End帧的传输结束时间点与最近的Restricted TWT的业务周期的起始点之间等于或小于SIFS。
在一些实施例中,在所述站点设备为处于节能状态的站点设备的情况下,以及在未启动回退流程或者已启动回退流程但未获取传输机会的情况下,在当前时间点与下一个低时延业务周期的起始时间点之间的时间间隔小于或等于预设阈值时,所述站点设备在下一个低时延业务周期的起始时间点之前进入睡眠状态,并保持睡眠状态至少到下一个低时延业务周期的起始时间点。
也即,对于处于节能(Power Save)状态的站点设备,在未启动回退流程或者已启动回退流程但未获取传输机会的情形下,在当前时间点与下一个低时延业务周期的起始时间点之间的时间间隔小于或等于一个预设阈值时,则在下一个低时延业务周期的起始时间点之前进入睡眠(Doze)状态,同时,保持睡眠状态至少到下一个低时延业务周期的起始时间点。
在一些实施例中,该预设阈值为第六时长,其中,该第六时长T 6满足:T 6=T PPDU传输 序列,或者,T 6=T PPDU传输序列+T s,T PPDU传输序列为拟发送PPDU传输序列的传输时长,T s为预设的帧间间隔时长。
在一些实施例中,该站点设备通过携带该预设阈值的受限TWT元素或受限TWT业务周期通告元素获取该预设阈值。
在一些实施例中,该受限TWT元素为该站点设备所关联的接入点设备通过携带该受限TWT元素的信标帧、探测响应帧、关联响应帧、重关联响应帧、管理帧中的至少之一发送的。
在一些实施例中,该受限TWT业务周期通告元素为该站点设备所关联的接入点设备通过携带该受限TWT业务周期通告元素的信标帧、探测响应帧、关联响应帧、重关联响应帧、管理帧中的至少之一发送的。
在一些实施例中,该受限TWT元素为最新接收到的受限TWT元素。
在一些实施例中,该受限TWT业务周期通告元素为最新接收到的受限TWT业务周期通告元素。
具体例如,站点设备通过最新收到的受限TWT元素(Restricted TWT element)或受 限TWT业务周期通告元素(Restricted TWT SP Announcement element)来获取Restricted TWT参数值,包括下一个低时延业务周期的起始时间点信息,其中Restricted TWT element或Restricted TWT SP Announcement element是站点设备所关联的接入点(AP)设备通过携带该元素的信标帧、探测响应帧、关联响应帧、以及重关联响应帧与其他的管理帧来发送。
在一些实施例中,该预设的帧间间隔时长包括短帧间间隔(SIFS)的时长。
在一些实施例中,在该站点设备确定在获取传输机会时或者在获取的传输机会内不发送该PPDU,且该目标时长内足以发送免竞争结束控制帧的情况下,该站点设备在该目标时长内发送免竞争结束控制帧。
其中,免竞争结束(Contention Free–End,CF-End)控制帧用于传输机会拥有者(TXOP Holder)来终止传输机会(TXOP)。
在一些实施例中,上述反馈帧可以是确认应答(Acknowledgement,ACK)帧或者块确认(Block Acknowledgment,BA)帧。
因此,在本申请实施例中,站点设备可以根据BSS内的下一个低时延业务周期的起始时间点之前的目标时长所满足的条件,在获取传输机会时或者在获取的传输机会内发送PPDU,和/或,在获取传输机会时或者在获取的传输机会内不发送PPDU,从而可以确保站点设备即将发送的PPDU不会造成低时延业务周期内的指定传输受到延迟或破坏。
进一步地,在本申请实施例中,可以确保支持低时延业务的STA(Low-Latency STA)能在预留业务周期(SP)的起始时间点就能可靠地获取传输机会并进行低时延业务数据的传输,解决了Wi-Fi标准工作机制中存在预留给指定STA传输的低时延业务周期(如TWT SP)实际起始时间点由于受其他STA传输影响而导致的“不确定性”从而影响低时延业务数据按时传输的问题,从而保护了用于低时延业务接入的指定业务周期,减少了低时延业务数据的传输时延。
图7是根据本申请实施例的无线通信的方法300的示意性流程图,如图7所示,该方法300可以包括如下内容中的至少部分内容:
S310,接入点设备确定BSS内的下一个低时延业务周期的起始时间点之前的目标时长内是否允许目标站点发送PPDU。
在本申请实施例中,在支持低时延业务的操作模式中,为了确保BSS内其他站点不影响支持低时延业务的站点在指定的业务周期(SP)内进行及时的帧交换,接入点设备可以确定BSS内的下一个低时延业务周期的起始时间点之前的目标时长内是否允许目标站点发送PPDU。
在一些实施例中,该下一个低时延业务周期不是配置给该目标站点进行帧交换的。
在一些实施例中,站点设备例如可以是EHT STA,也可以是其他的STA,如遗留STA(即上一代的STA),本申请对此并不限定。
在一些实施例中,该下一个低时延业务周期可以包括受限TWT的业务周期。
在一些实施例中,AP设备可以确定本BSS内至少下一个低时延业务周期的信息,包括低时延业务周期的起始时间点和/或截止时间点、低时延业务周期的配置对象等。AP设备为了确保其他STA发送的PPDU时长不影响下一个低时延业务周期内指定STA的帧交换,在接收到其他STA发送的PPDU拟回复确认帧(ACK或BA)时,需确保在下一个低时延业务周期的起始时间点之前的剩余时间间隔内的帧交换时长不会超过下一个低时延业务周期的起始时间点,如果判断拟发生的帧交换时长会超过下一个低时延业务周期的起始时间点则停止该PPDU传输或帧交换。
在一些实施例中,该目标时长为该接入点设备发送目标反馈帧的结束时间点与该下一个低时延业务周期的起始时间点之间的时间间隔(即下一个低时延业务周期的起始时间点之前的剩余时间间隔),其中,该目标反馈帧为针对该目标站点已经发送的第一PPDU 的反馈帧,例如,如图8所示。
在一些实施例中,上述S310具体可以包括:
在第一时长大于该目标时长的情况下,该接入点设备确定该目标时长内不允许该目标站点发送PPDU;
其中,该第一时长T 1满足:T 1=T min-PPDU+T s,或者,T 1=T min-PPDU+T f+T s
T min-PPDU为最小的PPDU传输时长,T f为反馈帧的传输时长,T s为预设的帧间间隔时长。
在一些实施例中,在该接入点设备确定该目标时长内不允许该目标站点发送PPDU的情况下,该接入点设备停止该目标站点在该目标时长内获取传输机会。
在一些实施例中,该接入点设备通过设置该目标反馈帧的持续时长,停止该目标站点在该目标时长内获取传输机会;
其中,该目标反馈帧的持续时长T tf满足:T tf≥T f+T t,或者,T tf≥T t
T f为反馈帧的传输时长,T t为该目标时长。
例如,接入点设备可以在目标反馈帧的时长(DURATION)字段中增加时长,以设置该目标反馈帧的持续时长T tf
在一些实施例中,在该接入点设备确定该目标时长内不允许该目标站点发送PPDU的情况下,该接入点设备停止该目标站点在该目标时长内获取的传输机会内发送PPDU。
在一些实施例中,该接入点设备向该目标站点发送该目标反馈帧,其中,该目标反馈帧包括第一字段,该第一字段用于指示该目标站点停止在该目标时长内发送PPDU。
在一些实施例中,该目标反馈帧包括用于指示停止发送PPDU的块确认BA类型或确认应答ACK类型。
例如,目标站点为支持增强功能的ACK或BA控制帧1的non-AP STA,也即,目标反馈帧可以是增强功能的ACK或BA控制帧1。接入点设备可以通过在增强功能的ACK或BA控制帧1中增加字段来指示目标站点在接收ACK帧或BA帧后停止发送PPDU。目标反馈帧可以如图9所示,在BA类型(Type)中增加携带“是否停止发送PPDU”指示的BA类型或ACK类型,在预留位(Reserved)中取一位作为指示位来指示是否停止发送PPDU,比如取值“1”指示停止发送PPDU,取值“0”指示不进行停止发送PPDU限制;或反之。
在一些实施例中,在该接入点设备确定该目标时长内不允许该目标站点发送PPDU的情况下,该接入点设备在比该下一个低时延业务周期的起始时间点提前第二时长的起始时间点之前向该目标站点发送指示帧,其中,该指示帧用于禁止该目标站点发送PPDU,该第二时长大于或等于该目标站点可获取的传输机会的最大时长。此种情况下,该目标站点可以是遗留的STA(Legacy STA)。
在一些实施例中,该指示帧包括携带静默间隔(quiet intervals)的信息的管理帧或控制帧,其中,该静默间隔至少包括该下一个低时延业务周期的起始时间点之前的该第二时长。
例如,目标站点为不支持增强功能的ACK或BA控制帧的non-AP STA(如遗留的STA),接入点设备在比下一个低时延业务周期的起始时间点提前第二时长的起始时间点之前向该目标站点发送指示帧来禁止遗留的STA发送PPDU,特别地,可规定在低时延业务操作模式下,对于支持低时延业务操作模式的STA,可忽略该指示帧。其中,第二时长可取大于或等于允许遗留的站点(Legacy STA)获取的最大传输机会限值(TXOP limit)的时长,如图10所示。
在一些实施例中,上述S310具体可以包括:
在该目标时长大于或等于第一时长,且该目标时长小于第三时长的情况下,该接入点设备确定该目标时长内允许该目标站点发送PPDU;
其中,该第一时长T 1和该第三时长T 3满足:T 1=T min-PPDU+T s,T 3=T max-PPDU+T s;或 者,T 1=T min-PPDU+T f+T s,T 3=T max-PPDU+T f+T s
T min-PPDU为最小的PPDU传输时长,T max-PPDU为最大的PPDU传输时长,T f为反馈帧的传输时长,T s为预设的帧间间隔时长。
作为示例1,在该接入点设备确定该目标时长内允许该目标站点发送PPDU的情况下,该接入点设备向该目标站点发送该目标反馈帧,该目标反馈帧包括第二字段,该第二字段用于指示该目标站点在该目标时长内发送PPDU的限制时长。
在一些实施例中,该目标反馈帧包括用于指示发送PPDU的限制时长的BA类型或ACK类型。
例如,目标站点为支持增强功能的ACK或BA控制帧2的non-AP STA,也即,目标反馈帧可以是增强功能的ACK或BA控制帧2。接入点设备可以通过在增强功能的ACK或BA控制帧2中增加字段来指示目标站点在接收ACK帧或BA帧后限制目标站点在目标时长内发送PPDU的限制时长。目标反馈帧可以如图11所示,在BA类型(Type)中增加携带“发送PPDU的限制时长”指示的BA类型或ACK类型,在预留位(Reserved)中取一个或多个指示位来指示发送PPDU的限制时长。
在一些实施例中,该限制时长T R满足:T R≤T t-T s
T t为该目标时长,T s为预设的帧间间隔时长。
作为示例2,在该接入点设备确定该目标时长内允许该目标站点发送PPDU的情况下,该接入点设备向该目标站点发送触发帧,该触发帧用于触发该目标站点发送至少一个PPDU,且发送该至少一个PPDU的结束时间点不超过该下一个低时延业务周期的起始时间点。例如,如图12所示,AP设备在目标时长内发送触发帧,该触发帧用于触发STA(目标站点)发送第二PPDU,STA在接收到该触发帧之后,发送第二PPDU,其中,STA在该下一个低时延业务周期的起始时间点之前发送完该第二PPDU,此外,反馈帧2为针对该第二PPDU的反馈帧。
在一些实施例中,在该接入点设备向该目标站点发送该触发帧的情况下,该接入点设备停止该目标站点在该目标时长内获取传输机会,和/或,该接入点设备停止该目标站点在该目标时长内获取的传输机会内发送PPDU。
作为示例3,在该接入点设备确定该目标时长内允许该目标站点发送PPDU的情况下,该接入点设备确定该目标时长内允许该目标站点发送一次PPDU。例如,如图13所示,STA(目标站点)在目标时长内仅发送第二PPDU,其中,反馈帧2为针对该第二PPDU的反馈帧。
在一些实施例中,在该目标站点上报的缓存状态报告(Buffer Status Report,BSR)中指示队列所需的PPDU长度不超过第四时长的情况下,接入点设备可以基于上述示例1或示例2限制目标站点发送PPDU;
其中,该第四时长T 4满足:T 4≤T t-T s,T t为该目标时长,T s为预设的帧间间隔时长。
在一些实施例中,在该目标站点上报的BSR中指示队列所需的PPDU长度超过了第四时长的情况下,接入点设备可以基于上述示例1或示例2或示例3限制目标站点发送PPDU;
其中,该第四时长T 4满足:T 4≤T t-T s,T t为该目标时长,T s为预设的帧间间隔时长。
在一些实施例中,上述S310具体可以包括:
在第五时长小于或等于该目标时长的情况下,该接入点设备确定该目标时长内允许该目标站点发送PPDU;
该第五时长T 5满足:T 5=T max-PPDU+T s,或者,T 5=T max-PPDU+T f+T s
T max-PPDU为最大的PPDU传输时长,T f为反馈帧的传输时长,T s为预设的帧间间隔时长。
在一些实施例中,该预设的帧间间隔时长包括多个短帧间间隔(SIFS)的时长之和。
例如,该预设的帧间间隔时长包括2倍的SIFS的时长。
在一些实施例中,上述反馈帧可以是确认应答(ACK)帧或者块确认(BA)帧。
在一些实施例中,上述两种支持增强功能的ACK或BA控制帧(分别如上图9和图11所示)除了用在基于预留资源保护的低时延通信应用场景外,也可用在多链路通信的同步通信应用场景中,比如,多条链路之间的PPDU的对齐等。
因此,在本申请实施例中,接入点设备可以确定BSS内的下一个低时延业务周期的起始时间点之前的目标时长内是否允许目标站点发送PPDU,从而可以确保目标站点即将发送的PPDU不会造成低时延业务周期内的指定传输受到延迟或破坏。
进一步地,在本申请实施例中,可以确保支持低时延业务的STA(Low-Latency STA)能在预留业务周期(SP)的起始时间点就能可靠地获取传输机会并进行低时延业务数据的传输,解决了Wi-Fi标准工作机制中存在预留给指定STA传输的低时延业务周期(如TWT SP)实际起始时间点由于受其他STA传输影响而导致的“不确定性”从而影响低时延业务数据按时传输的问题,从而保护了用于低时延业务接入的指定业务周期,减少了低时延业务数据的传输时延。
上文结合图5至图13,详细描述了本申请的方法实施例,下文结合图14至图18,详细描述本申请的装置实施例,应理解,装置实施例与方法实施例相互对应,类似的描述可以参照方法实施例。
图14示出了根据本申请实施例的站点设备400的示意性框图。如图14所示,该站点设备400包括:
通信单元410,用于在目标时长满足第一条件的情况下,在获取传输机会时或者在获取的传输机会内不发送物理层协议数据单元PPDU;和/或,
通信单元410,用于在目标时长满足第二条件的情况下,在获取传输机会时或者在获取的传输机会内发送PPDU;
其中,该目标时长位于基本服务集BSS内的下一个低时延业务周期的起始时间点之前。
在一些实施例中,该目标时长为拟发送该PPDU的起始时间点与该下一个低时延业务周期的起始时间点之间的时间间隔。
在一些实施例中,在该PPDU的时长已确定的情况下,在所述PPDU的传输时长已确定的情况下,所述第一条件包括第一时长大于所述目标时长,和/或,所述第二条件包括第一时长小于或等于所述目标时长;
其中,该第一时长T 1满足:T 1=T PPDU+T s,或者,T 1=T PPDU+T f+T s
T PPDU为该PPDU的传输时长,T f为反馈帧的传输时长,T s为预设的帧间间隔时长。
在一些实施例中,在该PPDU的时长未确定的情况下,所述第一条件包括第二时长大于所述目标时长,和/或,所述第二条件包括第二时长小于或等于所述目标时长;
其中,该第二时长T 2满足:T 2=T min-PPDU+T s,或者,T 2=T min-PPDU+T f+T s
T min-PPDU为最小的PPDU传输时长,T f为反馈帧的时长,T s为预设的帧间间隔时长。
在一些实施例中,在该站点设备确定在获取传输机会时或者在获取的传输机会内发送该PPDU的情况下,
该PPDU的传输时长T PPDU满足:T PPDU≤T t-T s,或者,T PPDU≤T t-(T f+T s),
T t为该目标时长,T f为反馈帧的传输时长,T s为预设的帧间间隔时长。
在一些实施例中,该站点设备400还包括:处理单元420,
在该目标时长满足该第一条件的情况下,该处理单元用于触发回退流程。
在一些实施例中,该目标时长为拟发送PPDU传输序列的起始时间点与下一个低时延业务周期的起始时间点之间的时间间隔。
在一些实施例中,该第一条件包括第六时长大于该目标时长,和/或,该第二条件包括第六时长小于或等于该目标时长;
其中,该第六时长T 6满足:T 6=T PPDU传输序列,或者,T 6=T PPDU传输序列+T s
T PPDU传输序列为该拟发送PPDU传输序列的传输时长,T s为预设的帧间间隔时长。
在一些实施例中,该站点设备400还包括:处理单元420,
在该目标时长满足该第一条件的情况下,该通信单元410用于停止该拟发送PPDU传输序列的发送,该处理单元420用于触发回退流程。
在一些实施例中,该站点设备400还包括:处理单元420,其中,
该处理单元420用于在低时延业务周期之外启动传输机会时,未考虑该传输机会的结束时间点是否超过下一个低时延业务周期的起始时间点,其中,在该传输机会内拟发送多个PPDU传输序列,该多个PPDU传输序列包括该拟发送PPDU传输序列;
该处理单元420用于在进行PPDU传输序列发送时提前探测将要发送的PPDU传输序列是否超过任意低时延业务周期的起始点;
在该传输机会期间,当该拟发送PPDU传输序列的结束时间点超过下一个低时延业务周期的起始点时,该通信单元410还用于将停止该拟发送PPDU传输序列的发送,该处理单元420用于触发回退流程。
在一些实施例中,该站点设备发送的帧的时长设置采用单一保护方式。
在一些实施例中,该站点设备400还包括:处理单元420,其中,
该处理单元420用于在低时延业务周期之外获取传输机会;
当该传输机会可设的最大时长对应的结束点达到或超过下一个低时延业务周期的起始时间点的情况下,该处理单元420用于在启动该传输机会时将该传输机会的时长设置为第七时长,该第七时长的起始时间点为获取该传输机会的时间,该第七时长的结束时间点不晚于下一个低时延业务周期的起始时间点,且该第七时长的结束时间点与下一个低时延业务周期的起始时间点之间的时间间隔小于或等于预设的帧间间隔时长。
在一些实施例中,该站点设备400还包括:处理单元420,其中,
该处理单元420用于在低时延业务周期之外获取传输机会,且该传输机会的结束时间点超过下一个低时延业务周期的起始时间点;
该处理单元420用于在启动该传输机会时将该传输机会的时长设置为第八时长,该第八时长的起始时间点为获取该传输机会的时间点,该第八时长的结束时间点超过下一个低时延业务周期的起始时间点;
其中,在该传输机会内,该站点设备在下一个低时延业务周期的起始时间点之前传输的最后一个帧为免竞争结束帧,且该免竞争结束帧的传输结束时间点与下一个低时延业务周期的起始时间点之间的时间间隔小于或等于预设的帧间间隔时长。
在一些实施例中,在所述站点设备为处于节能状态的站点设备的情况下,所述站点设备400还包括:处理单元420,其中,
在未启动回退流程或者已启动回退流程但未获取传输机会的情况下,在当前时间点与下一个低时延业务周期的起始时间点之间的时间间隔小于或等于预设阈值时,所述处理单元420用于在下一个低时延业务周期的起始时间点之前进入睡眠状态,并保持睡眠状态至少到下一个低时延业务周期的起始时间点。
在一些实施例中,所述预设阈值为第六时长,其中,所述第六时长T 6满足:T 6=T PPDU 传输序列,或者,T 6=T PPDU传输序列+T s
T PPDU传输序列为拟发送PPDU传输序列的传输时长,T s为预设的帧间间隔时长。
在一些实施例中,所述通信单元410还用于通过携带所述预设阈值的受限TWT元素或受限TWT业务周期通告元素获取所述预设阈值。
在一些实施例中,该预设的帧间间隔时长包括短帧间间隔SIFS的时长。
在一些实施例中,该通信单元410,还用于在该站点设备确定在获取传输机会时或者在获取的传输机会内不发送该PPDU,且该目标时长内足以发送免竞争结束控制帧的情况下,在该目标时长内发送免竞争结束控制帧。
在一些实施例中,该下一个低时延业务周期包括受限目标唤醒时间TWT的业务周 期。
在一些实施例中,所述通信单元410还用于通过受限TWT元素或受限TWT业务周期通告元素获取所述受限TWT参数。
在一些实施例中,所述受限TWT参数包括下一个受限TWT的业务周期的起始时间点信息。
在一些实施例中,所述受限TWT元素为所述站点设备所关联的接入点设备通过携带所述受限TWT元素的信标帧、探测响应帧、关联响应帧、重关联响应帧、管理帧中的至少之一发送的;或者,
所述受限TWT业务周期通告元素为所述站点设备所关联的接入点设备通过携带所述受限TWT业务周期通告元素的信标帧、探测响应帧、关联响应帧、重关联响应帧、管理帧中的至少之一发送的。
在一些实施例中,上述通信单元可以是通信接口或收发器,或者是通信芯片或者片上系统的输入输出接口。
应理解,根据本申请实施例的站点设备400可对应于本申请方法实施例中的站点设备,并且站点设备400中的各个单元的上述和其它操作和/或功能分别为了实现图5所示方法200中站点设备的相应流程,为了简洁,在此不再赘述。
图15示出了根据本申请实施例的接入点设备500的示意性框图。如图15所示,该接入点设备500包括:
处理单元510,用于确定基本服务集BSS内的下一个低时延业务周期的起始时间点之前的目标时长内是否允许目标站点发送物理层协议数据单元PPDU。
在一些实施例中,该目标时长为该接入点设备发送目标反馈帧的结束时间点与该下一个低时延业务周期的起始时间点之间的时间间隔,其中,该目标反馈帧为针对该目标站点已经发送的第一PPDU的反馈帧。
在一些实施例中,该处理单元510具体用于:
在第一时长大于该目标时长的情况下,确定该目标时长内不允许该目标站点发送PPDU;
其中,该第一时长T 1满足:T 1=T min-PPDU+T s,或者,T 1=T min-PPDU+T f+T s
T min-PPDU为最小的PPDU传输时长,T f为反馈帧的传输时长,T s为预设的帧间间隔时长。
在一些实施例中,该处理单元510还用于停止该目标站点在该目标时长内获取传输机会。
在一些实施例中,该处理单元510具体用于:
通过设置该目标反馈帧的持续时长,停止该目标站点在该目标时长内获取传输机会;
其中,该目标反馈帧的持续时长T tf满足:T tf≥T f+T t,或者,T tf≥T t
T f为反馈帧的传输时长,T t为该目标时长。
在一些实施例中,该处理单元510还用于停止该目标站点在该目标时长内获取的传输机会内发送PPDU。
在一些实施例中,该接入点设备还包括通信单元520,
该通信单元520用于向该目标站点发送该目标反馈帧,其中,该目标反馈帧包括第一字段,该第一字段用于指示该目标站点停止在该目标时长内发送PPDU。
在一些实施例中,该目标反馈帧包括用于指示停止发送PPDU的块确认BA类型或确认应答ACK类型。
在一些实施例中,该接入点设备还包括通信单元520,
该通信单元520用于在比该下一个低时延业务周期的起始时间点提前第二时长的起始时间点之前向该目标站点发送指示帧,其中,该指示帧用于禁止该目标站点发送PPDU,该第二时长大于或等于该目标站点可获取的传输机会的最大时长。
在一些实施例中,该指示帧包括携带静默间隔的信息的管理帧或控制帧,其中,该静默间隔至少包括该下一个低时延业务周期的起始时间点之前的该第二时长。
在一些实施例中,该处理单元510具体用于:
在该目标时长大于或等于第一时长,且该目标时长小于第三时长的情况下,确定该目标时长内允许该目标站点发送PPDU;
其中,该第一时长T 1和该第三时长T 3满足:T 1=T min-PPDU+T s,T 3=T max-PPDU+T s;或者,T 1=T min-PPDU+T f+T s,T 3=T max-PPDU+T f+T s
T min-PPDU为最小的PPDU传输时长,T max-PPDU为最大的PPDU传输时长,T f为反馈帧的传输时长,T s为预设的帧间间隔时长。
在一些实施例中,该接入点设备还包括通信单元520,
该通信单元520用于向该目标站点发送该目标反馈帧,该目标反馈帧包括第二字段,该第二字段用于指示该目标站点在该目标时长内发送PPDU的限制时长。
在一些实施例中,该目标反馈帧包括用于指示发送PPDU的限制时长的BA类型或ACK类型。
在一些实施例中,该限制时长T R满足:T R≤T t-T s
T t为该目标时长,T s为预设的帧间间隔时长。
在一些实施例中,该接入点设备还包括通信单元520,
该通信单元520用于向该目标站点发送触发帧,该触发帧用于触发该目标站点发送至少一个PPDU,且发送该至少一个PPDU的结束时间点不超过该下一个低时延业务周期的起始时间点。
在一些实施例中,该处理单元510还用于停止该目标站点在该目标时长内获取传输机会,和/或,停止该目标站点在该目标时长内获取的传输机会内发送PPDU。
在一些实施例中,该处理单元510具体用于:
确定该目标时长内允许该目标站点发送一次PPDU。
在一些实施例中,该目标站点上报的缓存状态报告BSR中指示队列所需的PPDU长度不超过第四时长;
其中,该第四时长T 4满足:T 4≤T t-T s,T t为该目标时长,T s为预设的帧间间隔时长。
在一些实施例中,该目标站点上报的BSR中指示队列所需的PPDU长度超过了第四时长;
其中,该第四时长T 4满足:T 4≤T t-T s,T t为该目标时长,T s为预设的帧间间隔时长。
在一些实施例中,该处理单元510具体用于:
在第五时长小于或等于该目标时长的情况下,确定该目标时长内允许该目标站点发送PPDU;
该第五时长T 5满足:T 5=T max-PPDU+T s,或者,T 5=T max-PPDU+T f+T s
T max-PPDU为最大的PPDU传输时长,T f为反馈帧的传输时长,T s为预设的帧间间隔时长。
在一些实施例中,该预设的帧间间隔时长包括多个短帧间间隔SIFS的时长之和。
在一些实施例中,该预设的帧间间隔时长包括2倍的SIFS的时长。
在一些实施例中,该下一个低时延业务周期包括受限目标唤醒时间TWT的业务周期。
在一些实施例中,上述通信单元可以是通信接口或收发器,或者是通信芯片或者片上系统的输入输出接口。上述处理单元可以是一个或多个处理器。
应理解,根据本申请实施例的接入点设备500可对应于本申请方法实施例中的接入点设备,并且接入点设备500中的各个单元的上述和其它操作和/或功能分别为了实现图7所示方法300中接入点设备的相应流程,为了简洁,在此不再赘述。
图16是本申请实施例提供的一种通信设备600示意性结构图。图16所示的通信设 备600包括处理器610,处理器610可以从存储器中调用并运行计算机程序,以实现本申请实施例中的方法。
在一些实施例中,如图16所示,通信设备600还可以包括存储器620。其中,处理器610可以从存储器620中调用并运行计算机程序,以实现本申请实施例中的方法。
其中,存储器620可以是独立于处理器610的一个单独的器件,也可以集成在处理器610中。
在一些实施例中,如图16所示,通信设备600还可以包括收发器630,处理器610可以控制该收发器630与其他设备进行通信,具体地,可以向其他设备发送信息或数据,或接收其他设备发送的信息或数据。
其中,收发器630可以包括发射机和接收机。收发器630还可以进一步包括天线,天线的数量可以为一个或多个。
在一些实施例中,该通信设备600具体可为本申请实施例的接入点设备,并且该通信设备600可以实现本申请实施例的各个方法中由接入点设备实现的相应流程,为了简洁,在此不再赘述。
在一些实施例中,该通信设备600具体可为本申请实施例的站点设备,并且该通信设备600可以实现本申请实施例的各个方法中由站点设备实现的相应流程,为了简洁,在此不再赘述。
图17是本申请实施例的装置的示意性结构图。图17所示的装置700包括处理器710,处理器710可以从存储器中调用并运行计算机程序,以实现本申请实施例中的方法。
在一些实施例中,如图17所示,装置700还可以包括存储器720。其中,处理器710可以从存储器720中调用并运行计算机程序,以实现本申请实施例中的方法。
其中,存储器720可以是独立于处理器710的一个单独的器件,也可以集成在处理器710中。
在一些实施例中,该装置700还可以包括输入接口730。其中,处理器710可以控制该输入接口730与其他设备或芯片进行通信,具体地,可以获取其他设备或芯片发送的信息或数据。
在一些实施例中,该装置700还可以包括输出接口740。其中,处理器710可以控制该输出接口740与其他设备或芯片进行通信,具体地,可以向其他设备或芯片输出信息或数据。
在一些实施例中,该装置可应用于本申请实施例中的接入点设备,并且该装置可以实现本申请实施例的各个方法中由接入点设备实现的相应流程,为了简洁,在此不再赘述。
在一些实施例中,该装置可应用于本申请实施例中的站点设备,并且该装置可以实现本申请实施例的各个方法中由站点设备实现的相应流程,为了简洁,在此不再赘述。
在一些实施例中,本申请实施例提到的装置也可以是芯片。例如可以是系统级芯片,系统芯片,芯片系统或片上系统芯片等。
图18是本申请实施例提供的一种通信系统800的示意性框图。如图18所示,该通信系统800包括站点设备810和接入点设备820。
其中,该站点设备810可以用于实现上述方法中由站点设备实现的相应的功能,以及该接入点设备820可以用于实现上述方法中由接入点设备实现的相应的功能,为了简洁,在此不再赘述。
应理解,本申请实施例的处理器可能是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、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。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。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。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器,处理器读取存储器中的信息,结合其硬件完成上述方法的步骤。
可以理解,本申请实施例中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)。应注意,本文描述的系统和方法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,上述存储器为示例性但不是限制性说明,例如,本申请实施例中的存储器还可以是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(synch link DRAM,SLDRAM)以及直接内存总线随机存取存储器(Direct Rambus RAM,DR RAM)等等。也就是说,本申请实施例中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。
本申请实施例还提供了一种计算机可读存储介质,用于存储计算机程序。
在一些实施例中,该计算机可读存储介质可应用于本申请实施例中的接入点设备,并且该计算机程序使得计算机执行本申请实施例的各个方法中由接入点设备实现的相应流程,为了简洁,在此不再赘述。
在一些实施例中,该计算机可读存储介质可应用于本申请实施例中的站点设备,并且该计算机程序使得计算机执行本申请实施例的各个方法中由站点设备实现的相应流程,为了简洁,在此不再赘述。
本申请实施例还提供了一种计算机程序产品,包括计算机程序指令。
在一些实施例中,该计算机程序产品可应用于本申请实施例中的接入点设备,并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由接入点设备实现的相应流程,为了简洁,在此不再赘述。
在一些实施例中,该计算机程序产品可应用于本申请实施例中的站点设备,并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由站点设备实现的相应流程,为了简洁,在此不再赘述。
本申请实施例还提供了一种计算机程序。
在一些实施例中,该计算机程序可应用于本申请实施例中的接入点设备,当该计算机程序在计算机上运行时,使得计算机执行本申请实施例的各个方法中由接入点设备实现的相应流程,为了简洁,在此不再赘述。
在一些实施例中,该计算机程序可应用于本申请实施例中的站点设备,当该计算机程序在计算机上运行时,使得计算机执行本申请实施例的各个方法中由站点设备实现的相应流程,为了简洁,在此不再赘述。
本领域普通技术人员可以意识到,结合本文中所公开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。针对这样的理解,本申请的技术方案本质上或者说对现有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、只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应所述以权利要求的保护范围为准。

Claims (100)

  1. 一种无线通信的方法,其特征在于,包括:
    在目标时长满足第一条件的情况下,站点设备在获取传输机会时或者在获取的传输机会内不发送物理层协议数据单元PPDU;和/或,
    在目标时长满足第二条件的情况下,站点设备在获取传输机会时或者在获取的传输机会内发送PPDU;
    其中,所述目标时长位于基本服务集BSS内的下一个低时延业务周期的起始时间点之前。
  2. 如权利要求1所述的方法,其特征在于,所述目标时长为拟发送所述PPDU的起始时间点与所述下一个低时延业务周期的起始时间点之间的时间间隔。
  3. 如权利要求2所述的方法,其特征在于,
    在所述PPDU的传输时长已确定的情况下,所述第一条件包括第一时长大于所述目标时长,和/或,所述第二条件包括第一时长小于或等于所述目标时长;
    其中,所述第一时长T 1满足:T 1=T PPDU+T s,或者,T 1=T PPDU+T f+T s
    T PPDU为所述PPDU的传输时长,T f为反馈帧的传输时长,T s为预设的帧间间隔时长。
  4. 如权利要求2所述的方法,其特征在于,
    在所述PPDU的传输时长未确定的情况下,所述第一条件包括第二时长大于所述目标时长,和/或,所述第二条件包括第二时长小于或等于所述目标时长;
    其中,所述第二时长T 2满足:T 2=T min-PPDU+T s,或者,T 2=T min-PPDU+T f+T s
    T min-PPDU为最小的PPDU传输时长,T f为反馈帧的时长,T s为预设的帧间间隔时长。
  5. 如权利要求4所述的方法,其特征在于,在所述站点设备确定在获取传输机会时或者在获取的传输机会内发送所述PPDU的情况下,
    所述PPDU的传输时长T PPDU满足:T PPDU≤T t-T s,或者,T PPDU≤T t-(T f+T s),
    T t为所述目标时长,T f为反馈帧的传输时长,T s为预设的帧间间隔时长。
  6. 如权利要求3所述的方法,其特征在于,所述方法还包括:
    在所述目标时长满足所述第一条件的情况下,所述站点设备触发回退流程。
  7. 如权利要求1所述的方法,其特征在于,所述目标时长为拟发送PPDU传输序列的起始时间点与下一个低时延业务周期的起始时间点之间的时间间隔。
  8. 如权利要求7所述的方法,其特征在于,
    所述第一条件包括第六时长大于所述目标时长,和/或,所述第二条件包括第六时长小于或等于所述目标时长;
    其中,所述第六时长T 6满足:T 6=T PPDU传输序列,或者,T 6=T PPDU传输序列+T s
    T PPDU传输序列为所述拟发送PPDU传输序列的传输时长,T s为预设的帧间间隔时长。
  9. 如权利要求8所述的方法,其特征在于,所述方法还包括:
    在所述目标时长满足所述第一条件的情况下,所述站点设备停止所述拟发送PPDU传输序列的发送,并触发回退流程。
  10. 如权利要求7至9中任一项所述的方法,其特征在于,所述方法还包括:
    所述站点设备在低时延业务周期之外启动传输机会时,未考虑所述传输机会的结束时间点是否超过下一个低时延业务周期的起始时间点,其中,在所述传输机会内拟发送多个PPDU传输序列,所述多个PPDU传输序列包括所述拟发送PPDU传输序列;
    所述站点设备在进行PPDU传输序列发送时提前探测将要发送的PPDU传输序列是否超过任意低时延业务周期的起始点;
    在所述传输机会期间,当所述拟发送PPDU传输序列的结束时间点超过下一个低时延业务周期的起始点时,所述站点设备将停止所述拟发送PPDU传输序列的发送,并触发回退流程。
  11. 如权利要求10所述的方法,其特征在于,所述站点设备发送的帧的时长设置采 用单一保护方式。
  12. 如权利要求1至5中任一项所述的方法,其特征在于,所述方法还包括:
    所述站点设备在低时延业务周期之外获取传输机会;
    当所述传输机会可设的最大时长对应的结束点达到或超过下一个低时延业务周期的起始时间点的情况下,所述站点设备在启动所述传输机会时将所述传输机会的时长设置为第七时长,所述第七时长的起始时间点为获取所述传输机会的时间,所述第七时长的结束时间点不晚于下一个低时延业务周期的起始时间点,且所述第七时长的结束时间点与下一个低时延业务周期的起始时间点之间的时间间隔小于或等于预设的帧间间隔时长。
  13. 如权利要求1至5中任一项所述的方法,其特征在于,所述方法还包括:
    所述站点设备在低时延业务周期之外获取传输机会,且所述传输机会的结束时间点超过下一个低时延业务周期的起始时间点;
    所述站点设备在启动所述传输机会时将所述传输机会的时长设置为第八时长,所述第八时长的起始时间点为获取所述传输机会的时间点,所述第八时长的结束时间点超过下一个低时延业务周期的起始时间点;
    其中,在所述传输机会内,所述站点设备在下一个低时延业务周期的起始时间点之前传输的最后一个帧为免竞争结束帧,且所述免竞争结束帧的传输结束时间点与下一个低时延业务周期的起始时间点之间的时间间隔小于或等于预设的帧间间隔时长。
  14. 如权利要求1所述的方法,其特征在于,在所述站点设备为处于节能状态的站点设备的情况下,所述方法还包括:
    在未启动回退流程或者已启动回退流程但未获取传输机会的情况下,在当前时间点与下一个低时延业务周期的起始时间点之间的时间间隔小于或等于预设阈值时,所述站点设备在下一个低时延业务周期的起始时间点之前进入睡眠状态,并保持睡眠状态至少到下一个低时延业务周期的起始时间点。
  15. 如权利要求14所述的方法,其特征在于,所述预设阈值为第六时长,其中,所述第六时长T 6满足:T 6=T PPDU传输序列,或者,T 6=T PPDU传输序列+T s
    T PPDU传输序列为拟发送PPDU传输序列的传输时长,T s为预设的帧间间隔时长。
  16. 如权利要求14或15所述的方法,其特征在于,所述方法还包括:
    所述站点设备通过携带所述预设阈值的受限TWT元素或受限TWT业务周期通告元素获取所述预设阈值。
  17. 如权利要求3至6中任一项,8至13中任一项,或15或16所述的方法,其特征在于,所述预设的帧间间隔时长包括短帧间间隔SIFS的时长。
  18. 如权利要求1至17中任一项所述的方法,其特征在于,所述方法还包括:
    在所述站点设备在获取传输机会时或者在获取的传输机会内不发送所述PPDU,且所述目标时长内足以发送免竞争结束控制帧的情况下,所述站点设备在所述目标时长内发送免竞争结束控制帧。
  19. 如权利要求1至18中任一项所述的方法,其特征在于,所述下一个低时延业务周期包括受限目标唤醒时间TWT的业务周期。
  20. 如权利要求19所述的方法,其特征在于,所述方法还包括:
    所述站点设备通过受限TWT元素或受限TWT业务周期通告元素获取所述受限TWT参数。
  21. 如权利要求20所述的方法,其特征在于,所述受限TWT参数包括下一个受限TWT的业务周期的起始时间点信息。
  22. 如权利要求16、20或21所述的方法,其特征在于,
    所述受限TWT元素为所述站点设备所关联的接入点设备通过携带所述受限TWT元素的信标帧、探测响应帧、关联响应帧、重关联响应帧、管理帧中的至少之一发送的;
    或者,
    所述受限TWT业务周期通告元素为所述站点设备所关联的接入点设备通过携带所述受限TWT业务周期通告元素的信标帧、探测响应帧、关联响应帧、重关联响应帧、管理帧中的至少之一发送的。
  23. 一种无线通信的方法,其特征在于,包括:
    接入点设备确定基本服务集BSS内的下一个低时延业务周期的起始时间点之前的目标时长内是否允许目标站点发送物理层协议数据单元PPDU。
  24. 如权利要求23所述的方法,其特征在于,所述目标时长为所述接入点设备发送目标反馈帧的结束时间点与所述下一个低时延业务周期的起始时间点之间的时间间隔,其中,所述目标反馈帧为针对所述目标站点已经发送的第一PPDU的反馈帧。
  25. 如权利要求24所述的方法,其特征在于,所述接入点设备确定BSS内的下一个低时延业务周期的起始时间点之前的目标时长内是否允许目标站点发送PPDU,包括:
    在第一时长大于所述目标时长的情况下,所述接入点设备确定所述目标时长内不允许所述目标站点发送PPDU;
    其中,所述第一时长T 1满足:T 1=T min-PPDU+T s,或者,T 1=T min-PPDU+T f+T s
    T min-PPDU为最小的PPDU传输时长,T f为反馈帧的传输时长,T s为预设的帧间间隔时长。
  26. 如权利要求25所述的方法,其特征在于,所述方法还包括:
    所述接入点设备停止所述目标站点在所述目标时长内获取传输机会。
  27. 如权利要求26所述的方法,其特征在于,所述接入点设备停止所述目标站点在所述目标时长内获取传输机会,包括:
    所述接入点设备通过设置所述目标反馈帧的持续时长,停止所述目标站点在所述目标时长内获取传输机会;
    其中,所述目标反馈帧的持续时长T tf满足:T tf≥T f+T t,或者,T tf≥T t
    T f为反馈帧的传输时长,T t为所述目标时长。
  28. 如权利要求25所述的方法,其特征在于,所述方法还包括:
    所述接入点设备停止所述目标站点在所述目标时长内获取的传输机会内发送PPDU。
  29. 如权利要求28所述的方法,其特征在于,所述接入点设备停止所述目标站点在所述目标时长内获取的传输机会内发送PPDU,包括:
    所述接入点设备向所述目标站点发送所述目标反馈帧,其中,所述目标反馈帧包括第一字段,所述第一字段用于指示所述目标站点停止在所述目标时长内发送PPDU。
  30. 如权利要求29所述的方法,其特征在于,所述目标反馈帧包括用于指示停止发送PPDU的块确认BA类型或确认应答ACK类型。
  31. 如权利要求25所述的方法,其特征在于,所述方法还包括:
    所述接入点设备在比所述下一个低时延业务周期的起始时间点提前第二时长的起始时间点之前向所述目标站点发送指示帧,其中,所述指示帧用于禁止所述目标站点发送PPDU,所述第二时长大于或等于所述目标站点可获取的传输机会的最大时长。
  32. 如权利要求31所述的方法,其特征在于,所述指示帧包括携带静默间隔的信息的管理帧或控制帧,其中,所述静默间隔至少包括所述下一个低时延业务周期的起始时间点之前的所述第二时长。
  33. 如权利要求24所述的方法,其特征在于,所述接入点设备确定BSS内的下一个低时延业务周期的起始时间点之前的目标时长内是否允许目标站点发送PPDU,包括:
    在所述目标时长大于或等于第一时长,且所述目标时长小于第三时长的情况下,所述接入点设备确定所述目标时长内允许所述目标站点发送PPDU;
    其中,所述第一时长T 1和所述第三时长T 3满足:T 1=T min-PPDU+T s,T 3=T max-PPDU+T s;或者,T 1=T min-PPDU+T f+T s,T 3=T max-PPDU+T f+T s
    T min-PPDU为最小的PPDU传输时长,T max-PPDU为最大的PPDU传输时长,T f为反馈帧的传输时长,T s为预设的帧间间隔时长。
  34. 如权利要求23所述的方法,其特征在于,所述方法还包括:
    所述接入点设备向所述目标站点发送所述目标反馈帧,所述目标反馈帧包括第二字段,所述第二字段用于指示所述目标站点在所述目标时长内发送PPDU的限制时长。
  35. 如权利要求34所述的方法,其特征在于,所述目标反馈帧包括用于指示发送PPDU的限制时长的BA类型或ACK类型。
  36. 如权利要求34或35所述的方法,其特征在于,
    所述限制时长T R满足:T R≤T t-T s
    T t为所述目标时长,T s为预设的帧间间隔时长。
  37. 如权利要求33所述的方法,其特征在于,所述方法还包括:
    所述接入点设备向所述目标站点发送触发帧,所述触发帧用于触发所述目标站点发送至少一个PPDU,且发送所述至少一个PPDU的结束时间点不超过所述下一个低时延业务周期的起始时间点。
  38. 如权利要求37所述的方法,其特征在于,所述方法还包括:
    所述接入点设备停止所述目标站点在所述目标时长内获取传输机会,和/或,所述接入点设备停止所述目标站点在所述目标时长内获取的传输机会内发送PPDU。
  39. 如权利要求33所述的方法,其特征在于,所述接入点设备确定所述目标时长内允许所述目标站点发送PPDU,包括:
    所述接入点设备确定所述目标时长内允许所述目标站点发送一次PPDU。
  40. 如权利要求33至39中任一项所述的方法,其特征在于,所述目标站点上报的缓存状态报告BSR中指示队列所需的PPDU长度不超过第四时长;
    其中,所述第四时长T 4满足:T 4≤T t-T s,T t为所述目标时长,T s为预设的帧间间隔时长。
  41. 如权利要求33至39中任一项所述的方法,其特征在于,所述目标站点上报的BSR中指示队列所需的PPDU长度超过了第四时长;
    其中,所述第四时长T 4满足:T 4≤T t-T s,T t为所述目标时长,T s为预设的帧间间隔时长。
  42. 如权利要求24所述的方法,其特征在于,所述接入点设备确定BSS内的下一个低时延业务周期的起始时间点之前的目标时长内是否允许目标站点发送PPDU,包括:
    在第五时长小于或等于所述目标时长的情况下,所述接入点设备确定所述目标时长内允许所述目标站点发送PPDU;
    所述第五时长T 5满足:T 5=T max-PPDU+T s,或者,T 5=T max-PPDU+T f+T s
    T max-PPDU为最大的PPDU传输时长,T f为反馈帧的传输时长,T s为预设的帧间间隔时长。
  43. 如权利要求25至42中任一项所述的方法,其特征在于,所述预设的帧间间隔时长包括多个短帧间间隔SIFS的时长之和。
  44. 如权利要求25至43中任一项所述的方法,其特征在于,所述预设的帧间间隔时长包括2倍的SIFS的时长。
  45. 如权利要求23至44中任一项所述的方法,其特征在于,所述下一个低时延业务周期包括受限目标唤醒时间TWT的业务周期。
  46. 一种站点设备,其特征在于,包括:
    通信单元,用于在目标时长满足第一条件的情况下,在获取传输机会时或者在获取的传输机会内不发送物理层协议数据单元PPDU;和/或,
    通信单元,用于在目标时长满足第二条件的情况下,在获取传输机会时或者在获取的传输机会内发送PPDU;
    其中,所述目标时长位于基本服务集BSS内的下一个低时延业务周期的起始时间点之前。
  47. 如权利要求46所述的站点设备,其特征在于,所述目标时长为拟发送所述PPDU的起始时间点与所述下一个低时延业务周期的起始时间点之间的时间间隔。
  48. 如权利要求47所述的站点设备,其特征在于,
    在所述PPDU的传输时长已确定的情况下,所述第一条件包括第一时长大于所述目标时长,和/或,所述第二条件包括第一时长小于或等于所述目标时长;
    其中,所述第一时长T 1满足:T 1=T PPDU+T s,或者,T 1=T PPDU+T f+T s
    T PPDU为所述PPDU的传输时长,T f为反馈帧的传输时长,T s为预设的帧间间隔时长。
  49. 如权利要求48所述的站点设备,其特征在于,
    在所述PPDU的传输时长未确定的情况下,所述第一条件包括第二时长大于所述目标时长,和/或,所述第二条件包括第二时长小于或等于所述目标时长;
    其中,所述第二时长T 2满足:T 2=T min-PPDU+T s,或者,T 2=T min-PPDU+T f+T s
    T min-PPDU为最小的PPDU传输时长,T f为反馈帧的时长,T s为预设的帧间间隔时长。
  50. 如权利要求49所述的站点设备,其特征在于,在所述站点设备确定在获取传输机会时或者在获取的传输机会内发送所述PPDU的情况下,
    所述PPDU的传输时长T PPDU满足:T PPDU≤T t-T s,或者,T PPDU≤T t-(T f+T s),
    T t为所述目标时长,T f为反馈帧的传输时长,T s为预设的帧间间隔时长。
  51. 如权利要求48所述的站点设备,其特征在于,所述站点设备还包括:处理单元,
    在所述目标时长满足所述第一条件的情况下,所述处理单元用于触发回退流程。
  52. 如权利要求46所述的站点设备,其特征在于,所述目标时长为拟发送PPDU传输序列的起始时间点与下一个低时延业务周期的起始时间点之间的时间间隔。
  53. 如权利要求52所述的站点设备,其特征在于,
    所述第一条件包括第六时长大于所述目标时长,和/或,所述第二条件包括第六时长小于或等于所述目标时长;
    其中,所述第六时长T 6满足:T 6=T PPDU传输序列,或者,T 6=T PPDU传输序列+T s
    T PPDU传输序列为所述拟发送PPDU传输序列的传输时长,T s为预设的帧间间隔时长。
  54. 如权利要求53所述的站点设备,其特征在于,所述站点设备还包括:处理单元,
    在所述目标时长满足所述第一条件的情况下,所述通信单元用于停止所述拟发送PPDU传输序列的发送,所述处理单元用于触发回退流程。
  55. 如权利要求52至54中任一项所述的站点设备,其特征在于,所述站点设备还包括:处理单元,其中,
    所述处理单元用于在低时延业务周期之外启动传输机会时,未考虑所述传输机会的结束时间点是否超过下一个低时延业务周期的起始时间点,其中,在所述传输机会内拟发送多个PPDU传输序列,所述多个PPDU传输序列包括所述拟发送PPDU传输序列;
    所述处理单元用于在进行PPDU传输序列发送时提前探测将要发送的PPDU传输序列是否超过任意低时延业务周期的起始点;
    在所述传输机会期间,当所述拟发送PPDU传输序列的结束时间点超过下一个低时延业务周期的起始点时,所述通信单元还用于将停止所述拟发送PPDU传输序列的发送,所述处理单元用于触发回退流程。
  56. 如权利要求55所述的站点设备,其特征在于,所述站点设备发送的帧的时长设置采用单一保护方式。
  57. 如权利要求46至50中任一项所述的站点设备,其特征在于,所述站点设备还包括:处理单元,其中,
    所述处理单元用于在低时延业务周期之外获取传输机会;
    当所述传输机会可设的最大时长对应的结束点达到或超过下一个低时延业务周期的 起始时间点的情况下,所述处理单元用于在启动所述传输机会时将所述传输机会的时长设置为第七时长,所述第七时长的起始时间点为获取所述传输机会的时间,所述第七时长的结束时间点不晚于下一个低时延业务周期的起始时间点,且所述第七时长的结束时间点与下一个低时延业务周期的起始时间点之间的时间间隔小于或等于预设的帧间间隔时长。
  58. 如权利要求46至50中任一项所述的站点设备,其特征在于,所述站点设备还包括:处理单元,其中,
    所述处理单元用于在低时延业务周期之外获取传输机会,且所述传输机会的结束时间点超过下一个低时延业务周期的起始时间点;
    所述处理单元用于在启动所述传输机会时将所述传输机会的时长设置为第八时长,所述第八时长的起始时间点为获取所述传输机会的时间点,所述第八时长的结束时间点超过下一个低时延业务周期的起始时间点;
    其中,在所述传输机会内,所述站点设备在下一个低时延业务周期的起始时间点之前传输的最后一个帧为免竞争结束帧,且所述免竞争结束帧的传输结束时间点与下一个低时延业务周期的起始时间点之间的时间间隔小于或等于预设的帧间间隔时长。
  59. 如权利要求46所述的站点设备,其特征在于,在所述站点设备为处于节能状态的站点设备的情况下,所述站点设备还包括:处理单元,其中,
    在未启动回退流程或者已启动回退流程但未获取传输机会的情况下,在当前时间点与下一个低时延业务周期的起始时间点之间的时间间隔小于或等于预设阈值时,所述处理单元用于在下一个低时延业务周期的起始时间点之前进入睡眠状态,并保持睡眠状态至少到下一个低时延业务周期的起始时间点。
  60. 如权利要求59所述的站点设备,其特征在于,所述预设阈值为第六时长,其中,所述第六时长T 6满足:T 6=T PPDU传输序列,或者,T 6=T PPDU传输序列+T s
    T PPDU传输序列为拟发送PPDU传输序列的传输时长,T s为预设的帧间间隔时长。
  61. 如权利要求59或60所述的方法,其特征在于,所述通信单元还用于通过携带所述预设阈值的受限TWT元素或受限TWT业务周期通告元素获取所述预设阈值。
  62. 如权利要求46至51中任一项,54至58中任一项,或60或61所述的站点设备,其特征在于,所述预设的帧间间隔时长包括短帧间间隔SIFS的时长。
  63. 如权利要求46至62中任一项所述的站点设备,其特征在于,所述通信单元还用于在所述站点设备在获取传输机会时或者在获取的传输机会内不发送所述PPDU,且所述目标时长内足以发送免竞争结束控制帧的情况下,在所述目标时长内发送免竞争结束控制帧。
  64. 如权利要求46至63中任一项所述的站点设备,其特征在于,所述下一个低时延业务周期包括受限目标唤醒时间TWT的业务周期。
  65. 如权利要求64所述的站点设备,其特征在于,所述通信单元还用于通过受限TWT元素或受限TWT业务周期通告元素获取所述受限TWT参数。
  66. 如权利要求65所述的站点设备,其特征在于,所述受限TWT参数包括下一个受限TWT的业务周期的起始时间点信息。
  67. 如权利要求61、65或66所述的站点设备,其特征在于,
    所述受限TWT元素为所述站点设备所关联的接入点设备通过携带所述受限TWT元素的信标帧、探测响应帧、关联响应帧、重关联响应帧、管理帧中的至少之一发送的;
    或者,
    所述受限TWT业务周期通告元素为所述站点设备所关联的接入点设备通过携带所述受限TWT业务周期通告元素的信标帧、探测响应帧、关联响应帧、重关联响应帧、管理帧中的至少之一发送的。
  68. 一种接入点设备,其特征在于,包括:
    处理单元,用于确定基本服务集BSS内的下一个低时延业务周期的起始时间点之前的目标时长内是否允许目标站点发送物理层协议数据单元PPDU。
  69. 如权利要求68所述的接入点设备,其特征在于,所述目标时长为所述接入点设备发送目标反馈帧的结束时间点与所述下一个低时延业务周期的起始时间点之间的时间间隔,其中,所述目标反馈帧为针对所述目标站点已经发送的第一PPDU的反馈帧。
  70. 如权利要求69所述的接入点设备,其特征在于,所述处理单元具体用于:
    在第一时长大于所述目标时长的情况下,确定所述目标时长内不允许所述目标站点发送PPDU;
    其中,所述第一时长T 1满足:T 1=T min-PPDU+T s,或者,T 1=T min-PPDU+T f+T s
    T min-PPDU为最小的PPDU传输时长,T f为反馈帧的传输时长,T s为预设的帧间间隔时长。
  71. 如权利要求70所述的接入点设备,其特征在于,所述处理单元还用于停止所述目标站点在所述目标时长内获取传输机会。
  72. 如权利要求71所述的接入点设备,其特征在于,所述处理单元具体用于:
    通过设置所述目标反馈帧的持续时长,停止所述目标站点在所述目标时长内获取传输机会;
    其中,所述目标反馈帧的持续时长T tf满足:T tf≥T f+T t,或者,T tf≥T t
    T f为反馈帧的传输时长,T t为所述目标时长。
  73. 如权利要求70所述的接入点设备,其特征在于,所述处理单元还用于停止所述目标站点在所述目标时长内获取的传输机会内发送PPDU。
  74. 如权利要求73所述的接入点设备,其特征在于,所述接入点设备还包括:通信单元,其中,
    所述通信单元用于向所述目标站点发送所述目标反馈帧,其中,所述目标反馈帧包括第一字段,所述第一字段用于指示所述目标站点停止在所述目标时长内发送PPDU。
  75. 如权利要求74所述的接入点设备,其特征在于,所述目标反馈帧包括用于指示停止发送PPDU的块确认BA类型或确认应答ACK类型。
  76. 如权利要求70所述的接入点设备,其特征在于,所述接入点设备还包括:通信单元,其中,
    所述通信单元用于在比所述下一个低时延业务周期的起始时间点提前第二时长的起始时间点之前向所述目标站点发送指示帧,其中,所述指示帧用于禁止所述目标站点发送PPDU,所述第二时长大于或等于所述目标站点可获取的传输机会的最大时长。
  77. 如权利要求76所述的接入点设备,其特征在于,所述指示帧包括携带静默间隔的信息的管理帧或控制帧,其中,所述静默间隔至少包括所述下一个低时延业务周期的起始时间点之前的所述第二时长。
  78. 如权利要求69所述的接入点设备,其特征在于,所述处理单元具体用于:
    在所述目标时长大于或等于第一时长,且所述目标时长小于第三时长的情况下,确定所述目标时长内允许所述目标站点发送PPDU;
    其中,所述第一时长T 1和所述第三时长T 3满足:T 1=T min-PPDU+T s,T 3=T max-PPDU+T s;或者,T 1=T min-PPDU+T f+T s,T 3=T max-PPDU+T f+T s
    T min-PPDU为最小的PPDU传输时长,T max-PPDU为最大的PPDU传输时长,T f为反馈帧的传输时长,T s为预设的帧间间隔时长。
  79. 如权利要求78所述的接入点设备,其特征在于,所述接入点设备还包括:通信单元,其中,
    所述通信单元用于向所述目标站点发送所述目标反馈帧,所述目标反馈帧包括第二字段,所述第二字段用于指示所述目标站点在所述目标时长内发送PPDU的限制时长。
  80. 如权利要求79所述的接入点设备,其特征在于,所述目标反馈帧包括用于指示 发送PPDU的限制时长的BA类型或ACK类型。
  81. 如权利要求79或80所述的接入点设备,其特征在于,
    所述限制时长T R满足:T R≤T t-T s
    T t为所述目标时长,T s为预设的帧间间隔时长。
  82. 如权利要求81所述的接入点设备,其特征在于,所述接入点设备还包括:通信单元,其中,
    所述通信单元用于向所述目标站点发送触发帧,所述触发帧用于触发所述目标站点发送至少一个PPDU,且发送所述至少一个PPDU的结束时间点不超过所述下一个低时延业务周期的起始时间点。
  83. 如权利要求82所述的接入点设备,其特征在于,所述处理单元还用于停止所述目标站点在所述目标时长内获取传输机会,和/或,所述接入点设备停止所述目标站点在所述目标时长内获取的传输机会内发送PPDU。
  84. 如权利要求81所述的接入点设备,其特征在于,所述处理单元具体用于:
    确定所述目标时长内允许所述目标站点发送一次PPDU。
  85. 如权利要求81至83中任一项所述的接入点设备,其特征在于,所述目标站点上报的缓存状态报告BSR中指示队列所需的PPDU长度不超过第四时长;
    其中,所述第四时长T 4满足:T 4≤T t-T s,T t为所述目标时长,T s为预设的帧间间隔时长。
  86. 如权利要求81至84中任一项所述的接入点设备,其特征在于,所述目标站点上报的BSR中指示队列所需的PPDU长度超过了第四时长;
    其中,所述第四时长T 4满足:T 4≤T t-T s,T t为所述目标时长,T s为预设的帧间间隔时长。
  87. 如权利要求68所述的接入点设备,其特征在于,所述接入点设备确定BSS内的下一个低时延业务周期的起始时间点之前的目标时长内是否允许目标站点发送PPDU,包括:
    在第五时长小于或等于所述目标时长的情况下,所述接入点设备确定所述目标时长内允许所述目标站点发送PPDU;
    所述第五时长T 5满足:T 5=T max-PPDU+T s,或者,T 5=T max-PPDU+T f+T s
    T max-PPDU为最大的PPDU传输时长,T f为反馈帧的传输时长,T s为预设的帧间间隔时长。
  88. 如权利要求70至87中任一项所述的接入点设备,其特征在于,所述预设的帧间间隔时长包括多个短帧间间隔SIFS的时长之和。
  89. 如权利要求70至88中任一项所述的接入点设备,其特征在于,所述预设的帧间间隔时长包括2倍的SIFS的时长。
  90. 如权利要求68至89中任一项所述的接入点设备,其特征在于,所述下一个低时延业务周期包括受限目标唤醒时间TWT的业务周期。
  91. 一种站点设备,其特征在于,包括:处理器和存储器,该存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,执行如权利要求1至22中任一项所述的方法。
  92. 一种接入点设备,其特征在于,包括:处理器和存储器,该存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,执行如权利要求23至45中任一项所述的方法。
  93. 一种芯片,其特征在于,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行如权利要求1至22中任一项所述的方法。
  94. 一种芯片,其特征在于,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行如权利要求23至45中任一项所述的方法。
  95. 一种计算机可读存储介质,其特征在于,用于存储计算机程序,所述计算机程序使得计算机执行如权利要求1至22中任一项所述的方法。
  96. 一种计算机可读存储介质,其特征在于,用于存储计算机程序,所述计算机程序使得计算机执行如权利要求23至45中任一项所述的方法。
  97. 一种计算机程序产品,其特征在于,包括计算机程序指令,该计算机程序指令使得计算机执行如权利要求1至22中任一项所述的方法。
  98. 一种计算机程序产品,其特征在于,包括计算机程序指令,该计算机程序指令使得计算机执行如权利要求23至45中任一项所述的方法。
  99. 一种计算机程序,其特征在于,所述计算机程序使得计算机执行如权利要求1至22中任一项所述的方法。
  100. 一种计算机程序,其特征在于,所述计算机程序使得计算机执行如权利要求23至45中任一项所述的方法。
PCT/CN2021/113119 2021-02-07 2021-08-17 无线通信的方法、站点设备和接入点设备 WO2022166157A1 (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN202180088259.4A CN116671248A (zh) 2021-02-07 2021-08-17 无线通信的方法、站点设备和接入点设备
EP21924157.7A EP4262302A1 (en) 2021-02-07 2021-08-17 Wireless communication method, station device and access point device
US18/219,161 US20230354426A1 (en) 2021-02-07 2023-07-07 Wireless communication method, station device and access point device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNPCT/CN2021/075885 2021-02-07
PCT/CN2021/075885 WO2022165818A1 (zh) 2021-02-07 2021-02-07 无线通信的方法、站点设备和接入点设备

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US18/219,161 Continuation US20230354426A1 (en) 2021-02-07 2023-07-07 Wireless communication method, station device and access point device

Publications (1)

Publication Number Publication Date
WO2022166157A1 true WO2022166157A1 (zh) 2022-08-11

Family

ID=82740669

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/CN2021/075885 WO2022165818A1 (zh) 2021-02-07 2021-02-07 无线通信的方法、站点设备和接入点设备
PCT/CN2021/113119 WO2022166157A1 (zh) 2021-02-07 2021-08-17 无线通信的方法、站点设备和接入点设备

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/075885 WO2022165818A1 (zh) 2021-02-07 2021-02-07 无线通信的方法、站点设备和接入点设备

Country Status (4)

Country Link
US (1) US20230354426A1 (zh)
EP (1) EP4262302A1 (zh)
CN (1) CN116671248A (zh)
WO (2) WO2022165818A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230087887A1 (en) * 2021-09-21 2023-03-23 Qualcomm Incorporated Traffic management for wireless stations (stas) that do not support restricted target wake time (r-twt) operation
WO2024087030A1 (zh) * 2022-10-25 2024-05-02 Oppo广东移动通信有限公司 无线通信的方法、接入点设备和站点设备
WO2024097106A1 (en) * 2022-10-31 2024-05-10 Ofinno, Llc Latency sensitive traffic transmission

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115695320B (zh) * 2023-01-04 2023-03-31 苏州浪潮智能科技有限公司 一种前后端负载管理方法、系统、设备及计算机存储介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105052213A (zh) * 2013-02-24 2015-11-11 Lg电子株式会社 在无线lan系统中交换用于低功率设备的帧的方法及其装置
US20160316470A1 (en) * 2015-04-21 2016-10-27 Apple Inc. Opportunistic Secondary Channel Access
CN106686663A (zh) * 2015-11-05 2017-05-17 华为技术有限公司 上行传输的方法及装置
US20180092127A1 (en) * 2016-09-28 2018-03-29 Neuromeka Multiple frame transmission

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10306544B2 (en) * 2013-11-08 2019-05-28 Interdigital Patent Holdings, Inc. Wi-Fi contention reduction
US20170265130A1 (en) * 2016-03-09 2017-09-14 Qualcomm Incorporated Dynamic broadcast time to wake service period allocation
CN116489810A (zh) * 2017-04-14 2023-07-25 韦勒斯标准与技术协会公司 使用bss标识符的无线通信方法及其无线通信终端
CN117880993A (zh) * 2018-12-12 2024-04-12 华为技术有限公司 信息传输的方法和通信装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105052213A (zh) * 2013-02-24 2015-11-11 Lg电子株式会社 在无线lan系统中交换用于低功率设备的帧的方法及其装置
US20160316470A1 (en) * 2015-04-21 2016-10-27 Apple Inc. Opportunistic Secondary Channel Access
CN106686663A (zh) * 2015-11-05 2017-05-17 华为技术有限公司 上行传输的方法及装置
US20180092127A1 (en) * 2016-09-28 2018-03-29 Neuromeka Multiple frame transmission

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230087887A1 (en) * 2021-09-21 2023-03-23 Qualcomm Incorporated Traffic management for wireless stations (stas) that do not support restricted target wake time (r-twt) operation
WO2024087030A1 (zh) * 2022-10-25 2024-05-02 Oppo广东移动通信有限公司 无线通信的方法、接入点设备和站点设备
WO2024097106A1 (en) * 2022-10-31 2024-05-10 Ofinno, Llc Latency sensitive traffic transmission

Also Published As

Publication number Publication date
CN116671248A (zh) 2023-08-29
US20230354426A1 (en) 2023-11-02
EP4262302A1 (en) 2023-10-18
WO2022165818A1 (zh) 2022-08-11

Similar Documents

Publication Publication Date Title
WO2022166157A1 (zh) 无线通信的方法、站点设备和接入点设备
US10917848B2 (en) Wake-up frame transmission method and device
KR102136811B1 (ko) 무선랜 시스템에서 숨겨진 노드 문제의 완화 방법
EP4319322A2 (en) Data communication method and apparatus
JP6081495B2 (ja) トラフィックインジケーションマッピング後にトリガされる送信のアクセスポイントのためのシステムと方法
KR102295193B1 (ko) 슬롯 사용 제어 장치 및 방법
CN108616968B (zh) 传输帧的方法和设备
WO2018086357A1 (zh) 唤醒方法、站点和接入点
JPWO2004071020A1 (ja) 通信方法及び通信装置、並びにコンピュータプログラム
JP2016522631A (ja) Ps−pollに対するアクセスポイント応答
WO2014134954A1 (zh) 业务数据的传输处理、传输方法及装置
KR102148315B1 (ko) 웨이크업 프레임 전송 방법, 및 노드 웨이크업 후에 제1 프레임을 전송하기 위한 방법, 디바이스 및 장비
WO2008048883A2 (en) Facilitating transmissions in a plurality of protocols
CN103517329A (zh) 无线局域网中sta获取及发送数据的方法、装置
KR20050107427A (ko) 서비스 주기의 동기화 방법 및 시스템
WO2019141069A1 (zh) 用于管理非授权频段的信道占用时长的方法和设备
KR101085994B1 (ko) 프레임 송신 방법 및 무선 근거리 네트워크
KR20230136219A (ko) 제한된 타겟 웨이크 시간 서비스 기간 종료
JP2009272662A (ja) 通信基地局装置及び通信システム
WO2022217612A1 (zh) 无线通信的方法及设备
WO2023039735A1 (zh) 无线通信的方法及设备
WO2014013430A1 (en) Method, apparatus and computer program for low-power operation of a device in a wireless network
WO2017049955A1 (zh) 端到端通信站点发现方法、站点及接入点
WO2024045083A1 (zh) 用于传输的方法、装置、设备、存储介质及程序产品
WO2023222072A1 (zh) 信道接入方法和相关装置

Legal Events

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

Ref document number: 21924157

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 202180088259.4

Country of ref document: CN

ENP Entry into the national phase

Ref document number: 2021924157

Country of ref document: EP

Effective date: 20230710

NENP Non-entry into the national phase

Ref country code: DE