WO2023226728A1 - Procédé et dispositif de communication - Google Patents

Procédé et dispositif de communication Download PDF

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Publication number
WO2023226728A1
WO2023226728A1 PCT/CN2023/092495 CN2023092495W WO2023226728A1 WO 2023226728 A1 WO2023226728 A1 WO 2023226728A1 CN 2023092495 W CN2023092495 W CN 2023092495W WO 2023226728 A1 WO2023226728 A1 WO 2023226728A1
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Prior art keywords
information
field
wireless frames
wireless
scheduling information
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PCT/CN2023/092495
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English (en)
Chinese (zh)
Inventor
郭宇宸
霍罗夫·埃夫根尼·米哈伊洛维奇
李云波
莱维茨基伊利亚
班克夫德米特里
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华为技术有限公司
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Publication of WO2023226728A1 publication Critical patent/WO2023226728A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

Definitions

  • the present application relates to the field of communication technology, and more specifically, to a communication method and device.
  • Wi-Fi wireless fidelity
  • IEEE Institute of Electrical and Electronics Engineers
  • Embodiments of the present application provide a communication method and device, which can improve communication efficiency and reduce delay.
  • a communication method is provided, which method can be executed by a first device.
  • the first device can be an access point, or a chip or a circuit, which is not limited in this application.
  • the method includes: sending scheduling information and time information, the scheduling information is used to schedule N wireless frames, the time information is used to maintain clock synchronization, N is an integer greater than or equal to 1, and based on the scheduling information and time information, sending and/or Or receive the N wireless frames.
  • N wireless frames can be sent and/or received according to the synchronized time of the time information, in order to improve the accuracy of communication, and the scheduling information can schedule more than 2 wireless frames, which can improve the efficiency of communication and reduce the time. extension.
  • identification information of the scheduling information is sent.
  • the scheduling information to be used can be determined through the identification information, which avoids configuring the scheduling information every time a wireless frame is scheduled, which can improve communication efficiency.
  • a communication method is provided.
  • the method can be executed by a first device.
  • the first device can be an access point, a chip or a circuit, which is not limited in this application.
  • the method includes: sending scheduling information and identification information of the scheduling information, the scheduling information is used to schedule N wireless frames, N is an integer greater than or equal to 1, sending identification information of the scheduling information, based on the scheduling determined according to the identification information Information is sent and/or received over the N wireless frames.
  • time information is sent, and the time information is used to maintain Clock synchronization.
  • N wireless frames can be sent and/or received according to the time after synchronization with the time information, in order to improve the accuracy of communication.
  • the wireless frame only includes the first field, the second field, the third field, the fourth field and the fifth field. At least one item, wherein the first field is used to carry the quantity information of the Media Access Control Protocol Data Unit MPDU, the second field is used to carry the sequence number information included in the MPDU, and the third field is used to carry the length information of the MPDU. , the fourth field is used to carry the content of the MPDU, and the fifth field is used to carry the verification information of the MPDU.
  • the scheduling information may include a part of the configuration information about the wireless frame. Therefore, the wireless frame may only include at least one of the above-mentioned fields, thereby reducing overhead and improving communication efficiency.
  • the scheduling information further includes at least one of the following: the transmission direction of the N wireless frames, the transmission of the N wireless frames time, the identification information of the sender of the N wireless frames, the identification information of the receiver of the N wireless frames, the modulation coding set used by the N wireless frames, the number of spatial streams used by the N wireless frames, the Whether the frame uses dual-carrier modulation, the number of stations corresponding to the N wireless frames, the resource unit allocation information of the N wireless frames, and the value of N.
  • the specific transmission method of N wireless frames can be configured through scheduling information, including: transmission direction, time domain and frequency domain resource location, modulation method, etc., and N can be sent and/or received more accurately based on scheduling information. wireless frames.
  • the scheduling information and/or time information is carried in a trigger frame, a beacon frame or a multicast management frame.
  • the frequency of time synchronization can be increased.
  • identification information can be sent directly to Determining the scheduling information to be used can achieve the effect of semi-static scheduling.
  • a communication method is provided, which method can be executed by a second device.
  • the second device can be a station, a chip or a circuit, which is not limited in this application.
  • the method includes: receiving scheduling information and time information, the scheduling information is used to schedule N wireless frames, the time information is used to maintain clock synchronization, N is an integer greater than or equal to 1, and based on the scheduling information and time information, sending and/or Or receive a radio frame corresponding to the second device among the N radio frames.
  • N wireless frames can be sent and/or received according to the synchronized time of the time information, in order to improve the accuracy of communication, and the scheduling information can schedule more than 2 wireless frames, which can improve the efficiency of communication and reduce the time. extension.
  • identification information of the scheduling information is received.
  • the scheduling information to be used can be determined through the identification information, which avoids configuring the scheduling information every time a wireless frame is scheduled, which can improve communication efficiency.
  • a communication method is provided, which method can be executed by a second device.
  • the second device can be a station, a chip or a circuit, which is not limited in this application.
  • the method includes: receiving scheduling information and identification information of the scheduling information, the scheduling information is used to schedule N wireless frames, N is an integer greater than or equal to 1, receiving identification information of the scheduling information, and scheduling based on the identification information
  • the information is sent and/or received by the wireless frame corresponding to the second device among the N wireless frames.
  • the scheduling information to be used avoids configuring the scheduling information every time a wireless frame is scheduled, and the scheduling information can schedule more than 2 wireless frames, which can improve communication efficiency and reduce delay.
  • time information is received, and the time information is used to maintain clock synchronization.
  • N wireless frames can be sent and/or received according to the time after synchronization with the time information, in order to improve the accuracy of communication.
  • the wireless frame only includes the first field, the second field, the third field, the fourth field and the fifth field. At least one item, wherein the first field is used to carry the quantity information of the Media Access Control Protocol Data Unit MPDU, the second field is used to carry the sequence number information included in the MPDU, and the third field is used to carry the length information of the MPDU. , the fourth field is used to carry the content of the MPDU, and the fifth field is used to carry the verification information of the MPDU.
  • the scheduling information may include a part of the configuration information about the wireless frame. Therefore, the wireless frame may only include at least one of the above-mentioned fields, thereby reducing overhead and improving communication efficiency.
  • the scheduling information further includes at least one of the following: the transmission direction of the N wireless frames, the transmission of the N wireless frames time, the identification information of the sender of the N wireless frames, the identification information of the receiver of the N wireless frames, the modulation coding set used by the N wireless frames, the number of spatial streams used by the N wireless frames, the Whether the frame uses dual-carrier modulation, the number of stations corresponding to the N wireless frames, the resource unit allocation information of the N wireless frames, and the value of N.
  • the specific transmission method of N wireless frames can be configured through scheduling information, including: transmission direction, time domain and frequency domain resource location, modulation method, etc., and N can be sent and/or received more accurately based on scheduling information. wireless frames.
  • the scheduling information and/or time information is carried in a trigger frame, a beacon frame or a multicast management frame.
  • the frequency of time synchronization can be increased.
  • identification information can be sent directly to Determining the scheduling information to be used can achieve the effect of semi-static scheduling.
  • a communication device may be a first device, a component of the first device, or a device including the first device.
  • the first device may be an access point, or a chip or a circuit, This application does not limit this.
  • the device includes: a transceiver unit and a processing unit.
  • the transceiver unit is used to send scheduling information and time information.
  • the scheduling information is used to schedule N wireless frames.
  • the time information is used to maintain clock synchronization.
  • N is an integer greater than or equal to 1.
  • the processing unit is used to control the transceiver unit to send and/or receive the N wireless frames based on the scheduling information and time information.
  • the transceiver unit is also configured to send identification information of the scheduling information.
  • a communication device may be a first device, a component of the first device, or a device including the first device.
  • the first device may be an access point, or a chip or a circuit, This application does not limit this.
  • the device includes: a transceiver unit and a processing unit.
  • the transceiver unit is used to send scheduling information and identification information of the scheduling information.
  • the scheduling information is used to schedule N wireless frames, where N is an integer greater than or equal to 1.
  • the transceiver unit also Identification information used to send scheduling information, and the processing unit is configured to control the transceiver unit to send and/or receive the N wireless frames based on the scheduling information determined according to the identification information.
  • the transceiver unit is also used to send time information, and the time information is used to maintain clock synchronization.
  • the wireless frame only includes the first field, the second field, the third field, the fourth field and the fifth field. At least one item, wherein the first field is used to carry the quantity information of the Media Access Control Protocol Data Unit MPDU, the second field is used to carry the sequence number information included in the MPDU, and the third field is used to carry the length information of the MPDU. , the fourth field is used to carry the content of the MPDU, and the fifth field is used to carry the verification information of the MPDU.
  • the scheduling information further includes at least one of the following: the transmission direction of the N wireless frames, the transmission of the N wireless frames time, the identification information of the sender of the N wireless frames, the identification information of the receiver of the N wireless frames, the modulation coding set used by the N wireless frames, the number of spatial streams used by the N wireless frames, the Whether the frame uses dual-carrier modulation, the number of stations corresponding to the N wireless frames, the resource unit allocation information of the N wireless frames, and the value of N.
  • the scheduling information and/or time information is carried in a trigger frame, a beacon frame or a multicast management frame.
  • a communication device may be a second device, a component of the second device, or a device including the second device.
  • the second device may be a station, or a chip or a circuit.
  • the device includes: a transceiver unit and a processing unit.
  • the transceiver unit is used to receive scheduling information and time information.
  • the scheduling information is used to schedule N wireless frames.
  • the time information is used to maintain clock synchronization.
  • N is an integer greater than or equal to 1.
  • the processing unit is configured to control the transceiver unit to send and/or receive the radio frame corresponding to the second device among the N radio frames based on the scheduling information and time information.
  • the transceiver unit is also configured to receive identification information of the scheduling information.
  • a communication device may be a second device, a component of the second device, or a device including the second device.
  • the second device may be a station, or a chip or a circuit.
  • the device includes: a transceiver unit and a processing unit.
  • the transceiver unit is used to receive scheduling information and identification information of the scheduling information.
  • the scheduling information is used to schedule N wireless frames, where N is an integer greater than or equal to 1.
  • the transceiver unit also The processing unit is configured to receive identification information of scheduling information, and the processing unit is configured to control the transceiver unit to send and/or receive the radio frame corresponding to the second device among the N radio frames based on the scheduling information determined according to the identification information.
  • the transceiver unit is also used to receive time information, and the time information is used to maintain clock synchronization.
  • the wireless frame only includes the first field, the second field, the third field, the fourth field and the fifth field. At least one item, wherein the first field is used to carry the quantity information of the Media Access Control Protocol Data Unit MPDU, the second field is used to carry the sequence number information included in the MPDU, and the third field is used to carry the length information of the MPDU. , the fourth field is used to carry the content of the MPDU, and the fifth field is used to carry the verification information of the MPDU.
  • the scheduling information further includes at least one of the following: the transmission direction of the N wireless frames, the transmission of the N wireless frames time, the identification information of the sender of the N wireless frames, the identification information of the receiver of the N wireless frames, the modulation coding set used by the N wireless frames, the number of spatial streams used by the N wireless frames, the Whether the frame uses dual-carrier modulation, the N The number of stations corresponding to the wireless frame, the resource unit allocation information of the N wireless frames, and the value of N.
  • the scheduling information and/or time information is carried in a trigger frame, a beacon frame or a multicast management frame.
  • a communication device including a processor.
  • the processor is coupled to a memory and may be used to execute instructions in the memory to implement the method of any one of the above first or second aspects, or to implement any of the possible implementations of the first or second aspect.
  • the device further includes memory.
  • the device further includes a communication interface, and the processor is coupled to the communication interface.
  • the device is an access point or station.
  • the communication interface may be a transceiver, or an input/output interface.
  • the device is a chip configured in an access point or station.
  • the communication interface may be an input/output interface.
  • the device is a chip or a system-on-a-chip.
  • the transceiver is a transceiver circuit.
  • the input/output interface is an input/output circuit.
  • a tenth aspect provides a computer-readable storage medium on which a computer program is stored.
  • the computer program When executed by a device, it causes the device to implement the method of any one of the first to fourth aspects, or The method in any possible implementation manner of the first aspect to the fourth aspect.
  • An eleventh aspect provides a computer program product containing instructions that, when executed by a computer, cause a device to implement the method of any one of the first to fourth aspects, or any of the first to fourth aspects.
  • the present application provides a communication system, including: a communication device for executing each implementation method of the first aspect and a communication device for executing each implementation method of the third aspect.
  • the present application provides a communication system, including: a communication device for executing each implementation method of the above-mentioned second aspect and a communication device for executing each implementation method of the above-mentioned fourth aspect.
  • this application also provides a chip system, including: a processor, configured to execute the method in any of the possible implementations of the first to fourth aspects.
  • Figure 1 is a schematic diagram of a network structure provided by an embodiment of the present application.
  • Figure 2 is an interactive flow chart of a communication method provided by an embodiment of the present application.
  • Figure 3 is a schematic diagram of a frame structure carrying scheduling information and time information provided by an embodiment of the present application.
  • Figure 4 is a schematic diagram of the frame structure of scheduling information provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a frame format corresponding to frame information of an uplink wireless frame provided by an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a frame format corresponding to frame information of a downlink wireless frame provided by an embodiment of the present application.
  • Figure 7 is a schematic frame structure diagram of a wireless frame carrying scheduling information provided by an embodiment of the present application.
  • Figure 8 is a schematic diagram of the frame structure of another wireless frame carrying scheduling information provided by an embodiment of the present application.
  • Figure 9 is a schematic diagram of the frame structure of a wireless frame provided by an embodiment of the present application.
  • Figure 10 is an interactive flow chart of another communication method provided by an embodiment of the present application.
  • Figure 11 is a schematic diagram of scheduling N wireless frames through scheduling information provided by an embodiment of the present application.
  • Figure 12 is a schematic diagram of a communication device provided by an embodiment of the present application.
  • Figure 13 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • WLAN wireless local area network
  • IEEE 802.11 system standards such as 802.11a/b/g standards, 802.11n standards, 802.11ac standards, 802.11ax standard, or its next generation, such as 802.11be standard, Wi-Fi 7 or extremely high throughput (EHT), such as 802.11be next generation, Wi-Fi 8 or next generation standard.
  • 802.11a/b/g standards such as 802.11n standards, 802.11ac standards, 802.11ax standard
  • EHT extremely high throughput
  • the embodiments of this application can also be applied to wireless local area network systems such as Internet of Things (IoT) networks or Vehicle to X (V2X).
  • IoT Internet of Things
  • V2X Vehicle to X
  • the embodiments of the present application can also be applied to other possible communication systems, such as long term evolution (long term evolution, LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (time division) system duplex (TDD), universal mobile telecommunication system (UMTS), global interoperability for microwave access (WiMAX) communication system, fifth generation (5th generation, 5G) communication system, and future Sixth generation (6th generation, 6G) communication system, etc.
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD LTE time division duplex
  • UMTS universal mobile telecommunication system
  • WiMAX global interoperability for microwave access
  • 5G fifth generation
  • 6th generation, 6G Sixth generation
  • Figure 1 is a schematic diagram of a network structure provided by an embodiment of the present application.
  • the network structure may include one or more access point (AP)-type stations and one or more non-access point-type stations (none access point station, non-AP STA).
  • AP access point
  • non-AP STA non-access point station
  • this article calls the access point type site an access point (AP), and the non-access point type site is called a station (STA).
  • Figure 1 takes the network structure including one AP and two stations (STA 1, STA 2) as an example to illustrate, which does not limit the scope of protection of the embodiments of this application.
  • the network structure 100 shown in Figure 1 includes 2 access points and 2 stations, such as AP 11, AP 12 and STA 21, STA 22 shown in Figure 1.
  • the station and the access point can communicate after establishing an association relationship.
  • AP11 can communicate with STA 21 after establishing an association relationship
  • AP12 can communicate with STA 22 after establishing an association relationship.
  • Sites can communicate after establishing an association relationship
  • access points can also communicate after establishing an association relationship.
  • AP11 can communicate with AP 12 after establishing an association relationship
  • STA 21 can communicate with STA 22 after establishing an association relationship.
  • the access point can be an access point for terminal devices (such as mobile phones) to enter the wired (or wireless) network. It is mainly deployed inside homes, buildings and campuses. The typical coverage radius is tens of meters to hundreds of meters. Of course, it can also Can be deployed outdoors.
  • the access point is equivalent to a bridge connecting the wired network and the wireless network. Its main function is to connect various wireless network clients together, and then connect the wireless network to the Ethernet.
  • the access point can be a terminal device (such as a mobile phone) or a network device (such as a router) with a Wi-Fi chip.
  • the access point can be a device that supports the 802.11be standard.
  • the access point can also be a device that supports multiple wireless local area networks (WLAN) standards of the 802.11 family such as 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, 802.11a and 802.11be next generation.
  • WLAN wireless local area networks
  • the access point in this application can be a high efficient (HE) AP or an EHT AP, or it can be an access point suitable for a certain future generation of Wi-Fi standards.
  • the site can be a wireless communication chip, wireless sensor or wireless communication terminal, etc., and can also be called a user.
  • the site can be a mobile phone that supports Wi-Fi communication function, a tablet computer that supports Wi-Fi communication function, a set-top box that supports Wi-Fi communication function, a smart TV that supports Wi-Fi communication function, or a smart TV that supports Wi-Fi communication function.
  • the site can support the 802.11be standard.
  • the site can also support WLAN standards of the 802.11 family such as 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, 802.11a, 802.11be, Wi-Fi 7, Wi-Fi 8 or its next generation.
  • 802.11ax 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, 802.11a, 802.11be, Wi-Fi 7, Wi-Fi 8 or its next generation.
  • the access point in this application can be a high efficient (HE) STA or an EHT STA, or it can be a STA that is suitable for a certain future generation of Wi-Fi standards.
  • HE high efficient
  • EHT EHT
  • access points and sites can be devices used in the Internet of Vehicles, IoT nodes, sensors, etc. in the Internet of Things (IoT), smart cameras, smart remote controls, smart water meters and electricity meters in smart homes, and sensors in smart cities, etc.
  • IoT Internet of Things
  • smart cameras smart remote controls
  • smart water meters and electricity meters in smart homes and sensors in smart cities, etc.
  • Figure 2 is an interactive flow chart of a communication method provided by an embodiment of the present application. This communication method can improve communication efficiency and is suitable for scenarios with high communication efficiency and delay requirements (such as industrial Internet of Things scenarios).
  • the method 200 shown in Figure 2 includes:
  • the first device sends scheduling information, which is used to schedule N wireless frames, where N is an integer greater than or equal to 1.
  • the second device receives the scheduling information.
  • Scheduling information can be understood as configuration information, and scheduling N wireless frames can be understood as transmitting N wireless frames according to the specific configurations of the N wireless frames in the scheduling information.
  • the specific configuration is the specific content of the scheduling information.
  • the first device and the second device may be in one of the following situations: the first device and the second device are access points; the first device and the second device are sites; the first device is an access point, and the second device is an access point.
  • the devices are sites; the first device is the site, and the second device is the access point.
  • method 200 also includes:
  • the first device sends time information, which is used to maintain clock synchronization.
  • the second device receives the time information.
  • time information and scheduling information can be carried in the same radio frame or in different radio frames, and this application does not limit this.
  • the time information is used to maintain clock synchronization of at least one second device with that of the first device.
  • the clock synchronization of at least one second device and the first device can be understood as: the clock of at least one second device is completely consistent with the clock of the first device, or the clock of at least one second device is consistent with the clock of the first device.
  • the time difference can be kept within an error range, which can be predefined, preconfigured or can be indicated through signaling.
  • the time information may be the time of the local clock of the first device when the scheduling information and time information are sent.
  • it may be the start time when the data symbol containing the first bit of the time information field appears at the transmitting antenna port, or the time of the local clock of the first device when the scheduling information and time information are generated, or the time information field may be included.
  • the time information can be system time information, such as the value of the time synchronization function (TSF), or a partial value of the TSF, or the low k bits of the TSF, or the m-th to n-th bits of the TSF ( From the high bit to the low bit) (or the m-th most significant bit (MSB) to the n-th MSB of TSF), where k, m, n are greater than 0, m>n, this application does not Make restrictions.
  • TSF time synchronization function
  • MSB most significant bit
  • TSF includes 8 bytes (64 bits), and the unit is microsecond (microsecond, us).
  • the high bits of TSF will not change, only the low bits will change, so as long as the low k bits are indicated, the time can be indicated.
  • 16 bits can represent the range from 0 to 65535, so within 65535 microseconds, the lower 16 bits of the TSF will change, and the upper 48 bits will not change, or only change by one bit. Therefore, if the access point sends time information once every 65535 microseconds, it only needs to send the lower 16 bits.
  • the access point can send the m-th bit to the n-th bit of the TSF, losing the accuracy of the n-1th bit to the 1st bit.
  • TSF is only accurate to 8us.
  • scheduling information and/or time information are carried in a trigger frame.
  • the trigger frame is a multi-user request to transmit (MU-RTS) frame or other frames, and this application does not limit this.
  • MU-RTS multi-user request to transmit
  • the first device when the first device is an access point, it can compete for the channel through enhanced distributed channel access (EDCA) and send the scheduling information and/or time information.
  • EDCA enhanced distributed channel access
  • the scheduling information also includes at least one of the following: the transmission direction of the N wireless frames, the sending time of the N wireless frames, the identification information of the sending end of the N wireless frames, the reception of the N wireless frames The identification information of the terminal, the modulation and coding set (MCS) used by the N wireless frames, the number of spatial streams used by the N wireless frames, whether the N wireless frames use dual carrier modulation (DCM) ), the number of stations corresponding to the N wireless frames, the resource unit allocation information of the N wireless frames, and the value of N.
  • MCS modulation and coding set
  • DCM dual carrier modulation
  • the transmission directions of N wireless frames include uplink (UL), downlink (DL), and device-to-device (D2D). That is, the transmission direction of the N wireless frames can all be uplink, downlink or D2D; or, the transmission direction of some of the N wireless frames is uplink, the transmission direction of some wireless frames is downlink, and the transmission direction of some wireless frames is D2D, therefore the scheduling information may include the transmission direction of each of the N wireless frames.
  • the sending time of N wireless frames may be the starting time of sending wireless frames.
  • the starting time of the wireless frame the end time of the trigger frame + ⁇ t, ⁇ t is the offset, and ⁇ t is greater than or equal to 0.
  • the identification information of the sender of N wireless frames may be the sender identifier.
  • the transmission direction of the wireless frame is upward.
  • the sender identifier is an application identifier (AID) of the second device, or the sender identifier is a part of the AID.
  • the identification information of the receiving end of the N wireless frames may be a receiving end identifier.
  • the receiving end identifier is the AID of the second device, or the receiving end identifier is a part of the AID.
  • the scheduling information also needs to include indication information to indicate whether the device indicated by the identification information is the D2D sender or receiver.
  • the modulation coding set used by N wireless frames can be binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), or quadrature amplitude modulation (QAM) ).
  • BPSK binary phase shift keying
  • QPSK quadrature phase shift keying
  • QAM quadrature amplitude modulation
  • Number of stations corresponding to N wireless frames If the transmission direction of N wireless frames is uplink, then the number of stations can be the number of senders of N wireless frames. If the transmission direction of N wireless frames is downlink, then the number of stations It can be the number of receivers of N wireless frames.
  • the resource unit allocation information of the N wireless frames may be the resource unit information where the N wireless frames are located: if the transmission direction of the N wireless frames is uplink, the resource unit information may indicate which resource unit (resource unit) the second device is in. Send the radio frame corresponding to the second device on the RU). If the transmission direction of the N radio frames is downlink, the resource unit information may indicate on which RU the second device receives the radio frame corresponding to the second device.
  • the frame carrying the above scheduling information and/or time information includes one or more of the following fields: frame control field, duration field, address 1 field, address 2 field, timestamp field, scheduling information field and calibration field. Validation fields, etc.
  • the frame structure of the frame carrying the above scheduling information and/or time information may be as shown in FIG. 3 .
  • the frame includes the following fields: frame control field (for example, it can occupy 2 bytes), duration field (duration/ID) (for example, it can occupy 2 bytes), address 1 Field (address 1) (for example, can occupy 6 bytes), address 2 field (address 2) (for example, can occupy 6 bytes), timestamp field (tetrapartial timestamp) (can carry time information, for example, can Occupying 4 bytes), scheduling information field (schedule) (can carry scheduling information, the number of occupied bytes can be changed, not fixed) and frame check sequence (frame check sequence, FCS).
  • frame control field for example, it can occupy 2 bytes
  • duration field for example, it can occupy 2 bytes
  • address 1 Field for example, can occupy 6 bytes
  • address 2 field (address 2) for example, can occupy 6 bytes
  • timestamp field tetrapar
  • the scheduling information when the scheduling information schedules multiple wireless frames, the scheduling information may include at least one frame information, or the scheduling information may include at least one frame information and at least one offset.
  • the scheduling information includes a frame structure of at least one frame information and at least one offset, as shown in FIG. 4 .
  • This scheduling information can schedule n+1 wireless frames such as wireless frame #0, wireless frame #1,..., wireless frame #n.
  • the scheduling information includes the frame information (frame info) corresponding to the above n+1 wireless frames, wireless frame #0 corresponds to frame information #0, wireless frame #1 corresponds to frame information #1,..., wireless frame #n corresponds to frame information #n , there is an offset (offset) between different frame information, and each offset field is used to indicate the start time of each wireless frame, for example, it can be the time offset relative to the ⁇ trigger frame>.
  • the frame information may include one or more of the following fields: transmission direction field, site number field, spatial stream number field, modulation coding field, and check field. , site identification field, type field and length field.
  • the frame format of the frame information can be as shown in Figure 5, including common fields of multiple sites, carrying common scheduling information, such as transmission direction (DL), number of users fields), spatial stream number (N of SS), MCS and forward error correction (FEC). Also includes every station The respective fields of each node carry the scheduling information of each site, such as site identification (RX ID), type (type) and length (length).
  • RX ID site identification
  • type type
  • length length
  • the information of each station may be repeated multiple times (using the same RU allocation) to indicate the presence of multiple receivers' MPDUs.
  • the frame information may include one or more of the following fields: transmission direction field, site number field, receiving end identification field, sending end identification field, and type field. , modulation coding field, resource unit allocation field, length field, spatial stream number field, check field field, received power field.
  • the frame format of the frame information can be as shown in Figure 6, where RX ID is the receiver ID, TX ID is the sender ID, and RU allocation can be found in the table of 802.11ax D 8.0 9-29i. It should be noted that if the above frame information is in a multicast frame, the multicast AID also needs to be included.
  • the frame carrying the above scheduling information and/or time information includes one or more of the following fields: frame control field, duration field, receiving end address field, sending end address field, timestamp field, user information list fields, fill fields and check fields.
  • the user information list field may include at least one user information field, and the user information field includes one or more of the following fields: user identification field, time field, resource unit allocation field, transmission direction field, frame identification field, modulation coding field, spatial stream Number allocation field, carrier modulation field and error correction coding type field.
  • the frame structure of the frame carrying the above scheduling information and/or time information may be as shown in FIG. 7 .
  • the common information field is used to carry common information of multiple user information, that is, common information of N wireless frames.
  • the padding field can make the wireless frame longer so that the receiving end has enough time to process the wireless frame.
  • the user information list field (user info list) can carry multiple user information (user info).
  • Each user information field includes AID 12 field, time field (offset), RU allocation field (RU allocation), transmission direction field (direction), frame ID field (frame ID), MCS field, spatial stream number allocation field (SS Allocation) ), DCM field and FEC coding type field (FEC coding type).
  • the user information field may also include other fields not shown in Figure 7, which is not limited by this application.
  • the transmission direction field indicates the direction of the scheduled wireless frame (such as UL, DL, D2D, etc.), and the AID 12 field is the user's identity.
  • the AID 12 field indicates the direction of the scheduled wireless frame. Receiver address.
  • the transmission direction field indicates UL
  • the AID 12 field indicates the sender address of the scheduled wireless frame.
  • the frame ID field is used to indicate which wireless frame the user transmits or receives.
  • the time field is used to indicate the scheduled start time of the radio frame.
  • the FEC coding type field indicates the channel coding method of the scheduled wireless frame. For the meaning of other fields, please refer to the above description and will not be described again.
  • the frame carrying the above scheduling information and/or time information includes one or more of the following fields: frame control field, duration field, receiving end address field, sending end address field, timestamp field, user information list fields, fill fields and check fields.
  • the user information list field may include at least one user information field, and the user information field includes a specific user Information fields and/or general user information list fields.
  • the specific user information field includes one or more of the following fields: user identification field, time field and transmission direction field;
  • the general user information list field includes one or more of the following fields: user identification field, resource unit allocation field, modulation coding field, space Stream number allocation field, carrier modulation field and error correction coding type field.
  • the frame structure of the frame carrying the above scheduling information and/or time information may be as shown in FIG. 8 .
  • the user information list field can carry multiple user information.
  • the user information field includes a special user information field (special user info) and a regular user information list field (regular user info list).
  • the special user information field includes an AID 12 field, a time field and a transmission direction field, or may also include other fields not shown in Figure 8.
  • the fields shown are not limited by this application.
  • the regular user information list field includes at least one regular user information field, and the regular user information field includes an AID 12 field, an RU allocation field, an MCS field, a spatial stream number allocation field, a DCM field, and an FEC encoding type field.
  • the regular user information field may also include other fields not shown in Figure 8, which is not limited in this application.
  • the specific user information field is used to carry the common information of one radio frame among the N radio frames scheduled.
  • a special value of the AID 12 field can be used to indicate that the user information carried by this field is specific user information.
  • the time field indicates the start time of the scheduled radio frame.
  • the transmission direction field indicates the scheduled direction of this wireless frame (such as UL, DL, D2D, etc.).
  • Each specific user information field is followed by at least one general user information field, and each general user information field corresponds to one user information. The meanings of other fields can be referred to the description above and will not be described again.
  • the user information list in Figure 7 and Figure 8 may include frame information of N wireless frames. In addition, it may also include time offset information (offset) of each frame in N wireless frames.
  • the user can correspond to the above site in the example.
  • method 200 also includes:
  • the first device sends feedback information, which indicates confirmation of the scheduling information and/or time information.
  • the second device receives the feedback information.
  • the feedback information may be a clear to send (CTS) frame.
  • CTS clear to send
  • method 200 also includes:
  • the second device updates the time of the clock based on the time information.
  • the second device can update the time of the local clock of the second device based on the time information. If multiple second devices receive N wireless frames, the second device that receives the wireless frames can implement multiple times based on the time information. Time synchronization between second devices.
  • the first device sends and/or receives the N wireless frames based on scheduling information.
  • the first device when the transmission directions of the N wireless frames are all uplink, the first device receives the N wireless frames based on the scheduling information; when the transmission directions of the N wireless frames are all downlink, the first device sends the N wireless frames based on the scheduling information.
  • Wireless frame when the transmission direction of the N wireless frames includes uplink and downlink, the first device receives the wireless frame whose transmission direction is uplink among the N wireless frames based on the scheduling information, and sends the wireless frame whose transmission direction is downlink among the N wireless frames. frame.
  • the second device For S220' corresponding to S220, the second device sends and/or receives the wireless frame corresponding to the second device among the N wireless frames based on the scheduling information, or the second device sends and/or receives the N based on the scheduling information and time information.
  • the objects of the N wireless frames may be multiple second devices.
  • each second device based on the schedule
  • the information sends and/or receives its own wireless frame among the N wireless frames.
  • the second device sends the radio frames corresponding to itself based on the scheduling information; when the transmission directions of the radio frames corresponding to itself among the N radio frames are all downlink, the second device
  • the second device receives the wireless frame corresponding to itself based on the scheduling information; when the transmission direction of the wireless frame corresponding to itself among the N wireless frames includes uplink and downlink, the second device receives the transmission direction corresponding to itself among the N wireless frames based on the scheduling information.
  • For downlink wireless frames send the wireless frame corresponding to the uplink transmission direction among the N wireless frames.
  • the radio frames among the N radio frames include only at least one of the first field, the second field, the third field, the fourth field and the fifth field, where the first field is In order to carry the quantity information of the media access control protocol data unit (MPDU), the second field is used to carry the sequence number information (sequence number) included in the MPDU, and the third field is used to carry the sequence number of the MPDU. Length information (length), the fourth field is used to carry the content of the MPDU (payload payload), and the fifth field is used to carry the check information of the MPDU (such as FCS).
  • MPDU media access control protocol data unit
  • the second field is used to carry the sequence number information (sequence number) included in the MPDU
  • the third field is used to carry the sequence number of the MPDU.
  • the fourth field is used to carry the content of the MPDU (payload payload)
  • the fifth field is used to carry the check information of the MPDU (such as FCS).
  • the frame structure of the radio frame among the N radio frames may be as shown in Figure 9. It should be understood that the frame structure of Figure 9, the order of each field, and the bytes occupied by each field are only examples, and this application does not limit this.
  • the frame structure of the wireless frame can be simplified without duplication. Including only one or more of the above five fields in the above-mentioned wireless frame is one of the implementation methods.
  • the wireless frame may also include fields other than the above-mentioned fields, such as frame control fields, etc. This application does not Make restrictions.
  • the transmission direction of the radio frame corresponding to the second device among the N radio frames included in the scheduling information is downlink, and the second device receives the radio frame based on the transmission direction.
  • the transmission direction of the radio frame corresponding to the second device among the N radio frames included in the scheduling information is uplink, and the second device sends the radio frame based on the transmission direction.
  • the second device can combine the transmission direction of the wireless frames and send and/or receive the corresponding time at the corresponding time (which can be the time read according to the clock after synchronization of the time information). own wireless frame.
  • the second device may determine the length of the scheduling information corresponding to the second device based on the number of sites, for example, the length from the identifier to the DCM.
  • the second device can determine whether to send the wireless frame based on the identification information. For example, the identification information and the second device's If the identifiers match, the wireless frame is sent. If the identification information does not match the identifier of the second device, the wireless frame is not sent.
  • the second device can determine whether to receive the wireless frame based on the identification information. For example, the identification information and the second device's If the identifiers match, the wireless frame corresponding to the second device is received; if the identification information does not match the identifier of the second device, the wireless frame is not received.
  • the second device can be based on the above The information determines the transmission parameters or reception parameters of the wireless frame.
  • the second device may send and/or receive wireless frames at corresponding resource unit positions.
  • the second device can determine the number of each scheduled radio frame based on the value of N. Act accordingly.
  • N wireless frames can be scheduled through scheduling information, avoiding the need to configure scheduling information each time a wireless frame is scheduled.
  • the scheduling information can schedule more than 2 wireless frames, which can improve communication efficiency and reduce delay.
  • the method 200 can synchronize the clocks of the first device and at least two second devices through time information, that is, the N wireless frames can be sent and/or received according to the synchronized time according to the time information, which can improve the accuracy of communication. Rate.
  • Figure 10 is an interactive flow chart of another communication method provided by an embodiment of the present application.
  • This communication method can improve communication efficiency and is suitable for scenarios with high communication efficiency and delay requirements (such as industrial Internet of Things scenarios).
  • the same or similar parts as those described in Figures 2-9 above can be referred to each other.
  • the method 300 shown in Figure 10 includes:
  • the first device sends scheduling information and identification information of the scheduling information.
  • the scheduling information is used to schedule N wireless frames, where N is an integer greater than or equal to 1.
  • the second device receives the scheduling information and identification information.
  • the first device and the second device may be in one of the following situations: the first device and the second device are access points; the first device and the second device are sites; the first device is an access point, and the second device is an access point.
  • the devices are sites; the first device is the site, and the second device is the access point.
  • the scheduling information may be multiple scheduling information, and each scheduling information has its own corresponding identifier.
  • the scheduling information can be determined through identification information of the scheduling information.
  • the scheduling information and identification information are carried in beacon frames or multicast management frames.
  • S320 The first device sends identification information of at least one piece of scheduling information.
  • the second device receives the identification information of the at least one scheduling information.
  • the identification information may be the ID of the scheduling information.
  • the second device can determine, based on the identification information, which scheduling information to be used is specifically the scheduling information obtained in S310.
  • the identification information is carried in a trigger frame.
  • the trigger frame is a MU-RTS frame or other frame, which is not limited in this application.
  • the identifier of a certain scheduling information can always be carried in the trigger frame, and this scheduling information can be used during this period.
  • the trigger frame carries the identifier of the new scheduling information.
  • EDCA can be used to compete for a channel and send the identification information.
  • method 300 also includes:
  • the first device sends time information, which is used to maintain clock synchronization.
  • the second device receives the time information.
  • method 300 also includes:
  • the first device sends feedback information, which indicates confirmation of the identification information, or the identification information and the time information.
  • the second device receives the feedback information.
  • the feedback information may be a CTS frame.
  • method 300 also includes:
  • S323 is the same as S213. Please refer to the relevant description in S213 and will not be described again.
  • the method 300 further includes:
  • S330 is the same as S220. Please refer to the relevant description in S220 and will not be described again.
  • S330’ corresponding to S330 is the same as S220’. Please refer to the relevant description in S220’, which will not be described again.
  • the frames in which the scheduling information and time information involved in the method 300 are located, and the frame structure of the N wireless frames can be found in the diagram in the method 200, and will not be described again.
  • the scheduling information and its identification information can be configured in advance. Subsequently, only the identification information is sent to determine the scheduling information to be used, avoiding the need to configure the scheduling information every time a wireless frame is scheduled, and the scheduling information can be scheduled 2 More than one wireless frame can improve communication efficiency and reduce delay.
  • the method 300 can synchronize the clocks of the first device and at least two second devices through time information, that is, N wireless frames can be sent and/or received according to the synchronized time based on the time information, thereby improving the accuracy of communication.
  • Figure 11 is a schematic diagram of scheduling N wireless frames through scheduling information provided by an embodiment of the present application.
  • the Industry/IoT request to transmit (IRTS) frame shown in Figure 11 is an example of a wireless frame carrying scheduling information.
  • IRTS is a name chosen for convenience to describe the wireless frame carrying the above scheduling information.
  • the name may also be something else, such as a trigger frame.
  • This application does not impose restrictions on the name of the wireless frame that carries the above scheduling information.
  • the five radio frames after the CTS are examples of radio frames scheduled by the scheduling information.
  • the interval xIFS between scheduled wireless frames can be smaller than the short inter-frame space (SIFS).
  • xIFS can be, for example, reduced inter-frame space (RIFS), Point coordination function inter-frame space (PIFS), any inter-frame space (AIFS), or distributed coordination function inter-frame space (DIFS), etc. wait. Since the sending time of each wireless frame is carried in the scheduling information, the first device can set the frame interval in the scheduling information so that the interval between wireless frames is less than SIFS.
  • Network allocation vector (NAV network allocation vector) refers to the length of time that a device needs to occupy air interface resources. After other devices are set to NAV, this period of time is considered to be a busy channel.
  • the communication device may include a hardware structure and/or a software module to implement the above functions in the form of a hardware structure, a software module, or a hardware structure plus a software module. Whether one of the above functions is performed as a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraints of the technical solution.
  • each functional module in various embodiments of the present application can be integrated into a processor, or can exist physically alone, or two or more modules can be integrated into one module.
  • the above integrated modules can be implemented in the form of hardware or software function modules.
  • FIG 12 is a schematic diagram of a communication device provided by an embodiment of the present application.
  • the device 400 may include a transceiver unit 410 and a processing unit 420.
  • the transceiver unit 410 can communicate with the outside, and the processing unit 420 uses for data processing.
  • the transceiver unit 410 may also be called a communication interface or a transceiver unit.
  • the device 400 can implement a process corresponding to the process performed by the first device in the above method embodiment, wherein the processing unit 420 is configured to perform processing related to the first device in the above method embodiment.
  • the transceiver unit 410 is configured to perform operations related to transceiver of the first device in the above method embodiment.
  • the transceiver unit 410 is used to send scheduling information and time information.
  • the scheduling information is used to schedule N wireless frames.
  • the time information is used to maintain clock synchronization.
  • N is an integer greater than or equal to 1.
  • the processing unit 420 uses The transceiver unit 410 is controlled to send and/or receive the N wireless frames based on the scheduling information and time information.
  • the transceiver unit 410 is also configured to send identification information of the scheduling information.
  • the transceiver unit 410 is configured to send scheduling information and identification information of the scheduling information.
  • the scheduling information is used to schedule N wireless frames, where N is an integer greater than or equal to 1.
  • the transceiver unit 410 is also configured to send the schedule.
  • Identification information of the information, the processing unit 420 is configured to control the transceiver unit 410 to send and/or receive the N wireless frames based on the scheduling information determined according to the identification information.
  • the transceiver unit 410 is also used to send time information, and the time information is used to maintain clock synchronization.
  • the wireless frame only includes at least one of a first field, a second field, a third field, a fourth field and a fifth field, where the first field is used to carry medium access control.
  • the quantity information of the protocol data unit MPDU is used to carry the sequence number information included in the MPDU
  • the third field is used to carry the length information of the MPDU
  • the fourth field is used to carry the content of the MPDU
  • the fifth field is used to carry To carry the verification information of MPDU.
  • the scheduling information further includes at least one of the following: the transmission direction of the N wireless frames, the sending time of the N wireless frames, the identification information of the sending end of the N wireless frames, the The identification information of the receiving end of the frame, the modulation coding set used by the N wireless frames, the number of spatial streams used by the N wireless frames, whether the N wireless frames use dual-carrier modulation, the number of stations corresponding to the N wireless frames, The resource unit allocation information of the N radio frames, the value of N.
  • the scheduling information and/or time information are carried in trigger frames, beacon frames or multicast management frames.
  • the device 400 can implement a process corresponding to the execution of the second device in the above method embodiment, wherein the processing unit 420 is configured to perform processing related to the second device in the above method embodiment.
  • the transceiver unit 410 is configured to perform operations related to transceiver of the second device in the above method embodiment.
  • the transceiver unit 410 is used to receive scheduling information and time information.
  • the scheduling information is used to schedule N wireless frames.
  • the time information is used to maintain clock synchronization.
  • N is an integer greater than or equal to 1.
  • the processing unit 420 uses The transceiver unit 410 is controlled to send and/or receive the radio frame corresponding to the second device among the N radio frames based on the scheduling information and the time information.
  • the transceiver unit 410 is also configured to receive identification information of the scheduling information.
  • the transceiver unit 410 is configured to receive scheduling information and identification information of the scheduling information.
  • the scheduling information is used to schedule N wireless frames, where N is an integer greater than or equal to 1.
  • the transceiver unit 410 is also configured to receive the schedule.
  • Identification information of the information the processing unit 420 is configured to control the transceiver unit 410 to send and/or receive the radio frame corresponding to the second device among the N radio frames based on the scheduling information determined according to the identification information.
  • the transceiver unit 410 is also used to receive time information, and the time information is used to maintain clock synchronization.
  • the wireless frame only includes a first field, a second field, a third field, a fourth field and At least one of the fifth fields, wherein the first field is used to carry the quantity information of the media access control protocol data unit MPDU, the second field is used to carry the sequence number information included in the MPDU, and the third field is used to carry The fourth field carries the length information of the MPDU, the fourth field is used to carry the content of the MPDU, and the fifth field is used to carry the verification information of the MPDU.
  • the scheduling information further includes at least one of the following: the transmission direction of the N wireless frames, the sending time of the N wireless frames, the identification information of the sending end of the N wireless frames, the The identification information of the receiving end of the frame, the modulation coding set used by the N wireless frames, the number of spatial streams used by the N wireless frames, whether the N wireless frames use dual-carrier modulation, the number of stations corresponding to the N wireless frames, The resource unit allocation information of the N radio frames, the value of N.
  • the scheduling information and/or time information are carried in trigger frames, beacon frames or multicast management frames.
  • the device 400 here is embodied in the form of a functional unit.
  • the term "unit” as used herein may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (such as a shared processor, a proprietary processor, or a group of processors) used to execute one or more software or firmware programs. processor, etc.) and memory, merged logic circuitry, and/or other suitable components to support the described functionality.
  • ASIC application specific integrated circuit
  • the device 400 can be specifically the first device in the above embodiment, and can be used to perform the process corresponding to the first device in the above method embodiment, or the device 400 can Specifically, the second device in the above embodiment can be used to execute the process corresponding to the second device in the above method embodiment. To avoid duplication, the details will not be described again.
  • the above-mentioned device 400 has the function of realizing the corresponding steps executed by the first device in the above-mentioned method, or the above-mentioned device 400 has the function of realizing the corresponding steps executed by the second device in the above-mentioned method.
  • the functions described can be implemented by hardware, or can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above functions; for example, the transceiver unit can be replaced by a transceiver (for example, the sending unit in the transceiver unit can be replaced by a transmitter, and the receiving unit in the transceiver unit can be replaced by a receiving unit. (machine replacement), other units, such as processing units, etc., can be replaced by processors to respectively perform the sending and receiving operations and related processing operations in each method embodiment.
  • the above-mentioned transceiver unit may also be a transceiver circuit (for example, it may include a receiving circuit and a transmitting circuit), and the processing unit may be a processing circuit.
  • the device in Figure 12 may be the second device or the first device in the previous embodiment, or it may be a chip or a chip system, such as a system on chip (SoC).
  • SoC system on chip
  • the transceiver unit may be an input-output circuit or a communication interface.
  • the processing unit is a processor or microprocessor or integrated circuit integrated on the chip. No limitation is made here.
  • FIG. 13 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • Communication device 500 may be a stand-alone device or may be part of a larger device.
  • the communication device 500 may be: (1) a first device or a second device (such as a receiver, a smart terminal, a wireless device, a handset, a mobile unit, a vehicle-mounted device, a cloud device, an artificial intelligence device, etc.); (2) An independent integrated circuit IC, or chip, or chip system or subsystem; (3) A collection of one or more ICs.
  • the IC collection may also include storage for storing data and instructions. Components; (4) ASIC, such as modem; (5) Modules that can be embedded in other devices.
  • FIG 13 shows only the main components of the communication device 500.
  • the communication device 500 includes a processor 501 and a transceiver 502.
  • the communication device may further include a memory 503 and an input and output device (not shown in Figure 13).
  • the processor 501 is mainly used to process communication protocols and communication data, and to process the entire communication device. Control, execute software programs, and process data from software programs.
  • Memory 503 is mainly used to store software programs and data.
  • the transceiver 502 may include a radio frequency circuit and an antenna.
  • the radio frequency circuit is mainly used for conversion of baseband signals and radio frequency signals and processing of radio frequency signals.
  • Antennas are mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices, such as touch screens, display screens, keyboards, etc., are mainly used to receive data input by users and output data to users.
  • the processor 501, the transceiver 502, and the memory 503 can be connected through a communication bus.
  • the processor 501 can read the software program in the memory 503, interpret and execute the instructions of the software program, and process the data of the software program.
  • the processor 501 performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal and then sends the radio frequency signal out in the form of electromagnetic waves through the antenna.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor 501.
  • the processor 501 converts the baseband signal into data and performs processing on the data. deal with.
  • the radio frequency circuit and antenna can be arranged independently of the processor that performs baseband processing.
  • the radio frequency circuit and antenna can be arranged remotely from the communication device.
  • the communication device 500 is used to implement the operations performed by the first device in the above method embodiment.
  • the memory 503 is used to store instructions, and the processor 501 can call the instructions stored in the memory 503.
  • the processor 501 is used to implement the operations performed internally by the first device in the above method embodiment, and the transceiver 502 is used to implement The receiving or sending operation performed by the first device in the above method embodiment.
  • the communication device 500 is used to implement the operations performed by the second device in the above method embodiment.
  • the memory 503 is used to store instructions, and the processor 501 can call the instructions stored in the memory 503.
  • the processor 501 is used to implement the operations performed internally by the second device in the above method embodiment, and the transceiver 502 is used to implement The receiving or sending operation performed by the second device in the above method embodiment.
  • each step of the above method can be completed by instructions in the form of hardware integrated logic circuits or software in the processor.
  • the steps of the methods disclosed in conjunction with the embodiments of the present application can be directly implemented by a hardware processor for execution, or can be executed by a combination of hardware and software modules in the processor.
  • the software module can be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other mature storage media in this field.
  • 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. To avoid repetition, it will not be described in detail here.
  • processors can be further divided into analog baseband processors and digital baseband processors.
  • the analog baseband processor can be integrated with the transceiver on the same chip, and the digital baseband processor can be set on an independent chip.
  • a digital baseband processor can be combined with a variety of application processors (such as but not limited to graphics processors, multimedia processors, etc.) Integrated on the same chip.
  • application processors such as but not limited to graphics processors, multimedia processors, etc.
  • Such a chip can be called a system on chip. Whether each device is independently installed on different chips or integrated on one or more chips often depends on the specific needs of product design.
  • the embodiments of the present invention do not limit the specific implementation forms of the above devices.
  • the above-mentioned processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component.
  • the processor in the embodiment of the present application can implement or execute the various methods, steps and logical block diagrams disclosed in the embodiment of the present application.
  • a general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc. Combined with the disclosure of the embodiments of this application The steps of the method can be directly implemented by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • non-volatile memory may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • non-volatile memory can be read-only memory (ROM), programmable ROM (PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically removable memory. Erase electrically programmable read-only memory (EPROM, EEPROM) or flash memory.
  • Volatile memory can be random access memory (RAM), which is used as an external cache.
  • RAM static random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • double data rate SDRAM double data rate SDRAM
  • DDR SDRAM double data rate SDRAM
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous link dynamic random access memory
  • direct rambus RAM direct rambus RAM
  • the present application also provides a computer program product.
  • the computer program product includes: computer program code.
  • the computer program code When the computer program code is run on a computer, it causes the computer to execute the steps shown in Figure 2 or Figure 10. The method in the example is shown.
  • the present application also provides a computer-readable medium.
  • the computer-readable medium stores program code.
  • the program code When the program code is run on a computer, it causes the computer to execute the steps shown in Figure 2 or Figure 10. The method in the example is shown.
  • this application also provides a system, which includes the aforementioned one or more sites and one or more access points.
  • At least one of! or "at least one of" in this article means all or any combination of the listed items, for example, “at least one of A, B and C", It can mean: A exists alone, B exists alone, C exists alone, A and B exist simultaneously, B and C exist simultaneously, A and C exist simultaneously, and A, B and C exist simultaneously. “At least one item” in this article means one or more items. “Multiple items” means two or more items.
  • the disclosed systems, devices and methods can be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or can be integrated into another system, or some features can be ignored, or not implemented.
  • the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application can be integrated into one processing unit, each unit can exist physically alone, or two or more units can be integrated into one unit.
  • the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product.
  • 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 various embodiments of this application.
  • the aforementioned storage media include: U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk and other media that can store program codes.

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

Abstract

Des modes de réalisation de la présente demande concernent un procédé et un dispositif de communication. La solution fournie par la présente invention peut être appliquée à un système de réseau local sans fil prenant en charge des protocoles Wi-Fi de prochaine génération IEEE802.11ax tels que 802.11be, Wi-Fi 7, ou EHT, et des protocoles de série 802.11 tels que 802.11be prochaine génération et Wi-Fi 8, et peut également être appliquée à un système de réseau personnel sans fil et à un système de détection basé sur une bande ultra-large (UWB). Le procédé de communication consiste à : envoyer des informations de planification et des informations temporelles, les informations de planification étant utilisées pour planifier N trames sans fil, les informations temporelles étant utilisées pour maintenir une synchronisation d'horloge de stations, et N étant un nombre entier supérieur ou égal à un ; et envoyer et/ou recevoir les N trames sans fil sur la base des informations de planification et des informations temporelles. La solution fournie par la présente demande peut améliorer l'efficacité de communication et réduire le retard temporel.
PCT/CN2023/092495 2022-05-23 2023-05-06 Procédé et dispositif de communication WO2023226728A1 (fr)

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