WO2018177266A1 - 数据传输的方法和装置 - Google Patents

数据传输的方法和装置 Download PDF

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Publication number
WO2018177266A1
WO2018177266A1 PCT/CN2018/080590 CN2018080590W WO2018177266A1 WO 2018177266 A1 WO2018177266 A1 WO 2018177266A1 CN 2018080590 W CN2018080590 W CN 2018080590W WO 2018177266 A1 WO2018177266 A1 WO 2018177266A1
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WO
WIPO (PCT)
Prior art keywords
frame
time period
wake
beacon frame
network device
Prior art date
Application number
PCT/CN2018/080590
Other languages
English (en)
French (fr)
Inventor
李云波
王莹
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华为技术有限公司
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Publication of WO2018177266A1 publication Critical patent/WO2018177266A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H04W52/0216—Power 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0248—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal dependent on the time of the day, e.g. according to expected transmission activity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/54—Signalisation aspects of the TPC commands, e.g. frame structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H04W74/0841—Random access procedures, e.g. with 4-step access with collision treatment
    • H04W74/085—Random access procedures, e.g. with 4-step access with collision treatment collision avoidance
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present application relates to the field of communications and, more particularly, to methods and apparatus for data transmission in the field of communications.
  • Wake-up radio (WUR) technology is a technology that reduces the power consumption and cost of the terminal.
  • the mobile terminal can intelligently select the appropriate time to enter the power-saving mode, that is, turn off the main radio of the mobile terminal.
  • the terminal is operated in a narrowband mode, and can continuously listen for a narrowband signal when the primary radio is turned off.
  • WUP wake-up packet
  • a network device needs to periodically transmit a beacon frame such that a mobile terminal associated with the network device learns that the network device is in an active state.
  • the mobile terminal that is not associated with the network device can also perceive the presence of the network device through the beacon frame.
  • the periodic transmission of the beacon frame by the network device consumes a large amount of air interface resources, that is, the overhead of the beacon frame is relatively large.
  • the network device when the network device sends a wake-up frame to a mobile terminal, other mobile terminals can use the wake-up frame as a beacon frame, and when the network device sends another wake-up frame to another mobile terminal, the other terminal again
  • the another wake-up frame may be used as a beacon frame until the network device determines that the wake-up frame is not sent to any mobile terminal within a preset time period, and then the beacon frame is sent to all mobile terminals in the form of a broadcast to Reduce the overhead of beacon frames.
  • the present application provides a method, apparatus, and system for cell handover, which can improve cell handover efficiency.
  • the present application provides a method and apparatus for data transmission, which can reduce the overhead of a beacon frame.
  • the present application provides a method for data transmission, the method comprising:
  • the network device determines that, in the first time period, there is a first wake-up frame to be sent, where the first wake-up frame is used to wake up the first terminal device, and the first time period includes a first sending of the preset beacon frame.
  • the beacon frame is periodically sent, and the duration of the first time period is greater than or equal to 0, and is smaller than the transmission period of the beacon frame, where when the duration of the first time period is equal to 0
  • the first time period is the first sending time;
  • the network device sends the first wake-up frame instead of transmitting the beacon frame.
  • the first time period in the embodiment of the present application may be at least one time period
  • the first sending time may be at least one sending time
  • the first wake-up frame may be at least one wake-up frame
  • the first sending time is
  • the plurality of transmission times may be a plurality of consecutive transmission times or a plurality of non-continuous periodic transmission times
  • the plurality of time periods may be understood as each of the plurality of transmission times.
  • the one-to-one corresponding time period, the multiple wake-up frames can be understood as the wake-up frame to be sent in each time period, which is not limited in this embodiment of the present application.
  • the duration of the time period corresponding to each of the multiple transmission times may be equal or different, which is not limited in this embodiment of the present application.
  • time period corresponding to the sending moment can be understood as the time period including at least the sending moment, that is, the duration of the time period is greater than or equal to 0.
  • the time period is the transmission time; when the duration of the time period is greater than 0, the duration between the start time and the end time of the time period includes the transmission time, Or the starting time of the time period is the sending time, or the ending time of the time period is the sending time.
  • the beacon frame in the embodiment of the present application may be sent in the form of unicast, multicast, or broadcast, which is not limited in this embodiment of the present application.
  • the network device determines that the first wake-up frame to be sent exists in the first time period, where the first time period includes a first sending time of the preset beacon frame, and the beacon The frame is periodically sent.
  • the duration of the first time period is greater than or equal to 0, and is less than the transmission period of the beacon frame.
  • the network device sends the first wake-up frame instead of transmitting the beacon frame, which can reduce the beacon.
  • the overhead of the frame is
  • the network device sends the first wake-up frame instead of sending the beacon frame, so that the network device does not need to send the beacon frame at the sending moment, and correspondingly, other terminal devices except the first terminal device.
  • the first wake-up frame can be used as a beacon frame, and therefore, the overhead of the beacon frame can be reduced.
  • the network device determines that there is a wake-up frame to be sent in a time period corresponding to each transmission moment of the beacon frame, and transmits a wake-up frame instead of transmitting the beacon frame, then while reducing the overhead of the beacon frame, It is also possible to ensure that the terminal device obtains a beacon frame within the period of each beacon frame, so that the WUR system of the terminal device can perform periodic sleep, thereby further reducing the power consumption of the terminal device.
  • the first wake-up frame carries synchronization information
  • the synchronization information is used for time synchronization or frequency synchronization.
  • the first wake-up frame may carry a synchronization information field, where the synchronization information field is used to indicate time domain information or frequency information of the network device, so that the terminal device performs time with the network device according to the synchronization information field. Synchronization or frequency synchronization.
  • the sending, by the network device, the first wake-up frame includes: sending, by the network device, the first wake-up frame at a first sending rate, the first sending The rate is less than the preset rate threshold.
  • the network device reduces the transmission rate of the first wake-up frame to be low enough, so that more terminal devices can detect the first wake-up frame, thereby correctly parsing the first A wake-up frame is used as the beacon frame.
  • the method before the sending, by the network device, the first wake-up frame, the method further includes: the network device sending a interception notification message to the second terminal device, where the interception notification is The message is used to instruct the second terminal device to listen to the beacon frame in the first time period.
  • the manner in which the network device and the second terminal device obtain the information of the first time period is not limited in the embodiment of the present application.
  • the network device and the second terminal device may pre-agreed a start frame and a sending period of the beacon frame transmission, and determine each of the beacon frames according to the start frame and the sending period. The first time period in which the sending moment is located.
  • the network device may carry the start frame information, the listening period information, and the listening duration information sent by the beacon frame in the interception notification message.
  • the network device communicates with a terminal device working on each of the frequency domain channels by using a plurality of frequency domain channels, where the first wake-up frame is on the first frequency domain channel. And sending, the multiple frequency domain channels include the first frequency domain channel, the method further includes: the network device determining that, in the first time period, there is no second wake-up frame to be sent, The second wake-up frame is used to wake up the third terminal device, where the third terminal device works on the second frequency domain channel, the multiple frequency domain channels include the second frequency domain channel, and the second frequency The domain channel is different from the first frequency domain channel; while the network device sends the first wake-up frame on the first frequency domain channel, the network device sends on the second frequency domain channel The beacon frame.
  • a network device can communicate with terminal devices operating on each frequency domain channel in multiple frequency domain channels, and the WUR system usually operates on a narrow band to achieve power saving effects, while the network device is transmitting the most awake frame.
  • the beginning part needs to have a 20MHz preamble sequence. So, once the network device sends the wake-up frame on one of the multiple frequency domain channels, the other frequency domain channels will not be used even if no wake-up frame is sent. Sending other data will be idle.
  • the network device determines that, in the first time period, there is a first wake-up frame to be sent on the first frequency domain channel, and there is no to be sent on the second frequency domain channel.
  • the network device sends the first wake-up frame on the first frequency domain channel, the network device sends a beacon frame on the second frequency domain channel, which can fully utilize the frequency domain bandwidth and improve Utilization of system resources.
  • the present application provides a method for data transmission, the method comprising:
  • the terminal device listens to the beacon frame sent by the network device in the first time period, where the first time period includes a preset first receiving moment of the beacon frame, and the beacon frame is sent periodically.
  • the duration of the first time period is greater than or equal to 0, and is less than the receiving period of the beacon frame, wherein when the duration of the first time period is equal to 0, the first time period is the first receiving time;
  • the terminal device listens to the wake-up frame sent by the network device in the first time period, and the wake-up frame is used to wake up other terminal devices, the terminal device uses the wake-up frame as the letter. Framed frame.
  • the first time period in the embodiment of the present application may be at least one time period, and the first receiving time may be at least one time.
  • the first receiving time may be any one of the receiving times periodically sent by the beacon frame, and the first time period may be a time period including at least the first receiving time, and the first time period The duration is less than the reception period.
  • the first receiving moment when the first receiving moment may be multiple receiving moments, the multiple receiving moments may be multiple consecutive periods of receiving moments, or multiple non-continuous periods of receiving moments, the multiple receiving times A segment can be understood as a time period corresponding to each of the plurality of receiving times, and the plurality of wake-up frames can be understood as a wake-up frame to be received in each time period, which is not limited in this embodiment of the present application.
  • the duration of the time period corresponding to each of the multiple receiving times may be equal or different, which is not limited by the embodiment of the present application.
  • time period corresponding to the receiving moment can be understood as the time period including at least the receiving moment, that is, the duration of the time period is greater than or equal to 0.
  • the time period is the receiving time; when the duration of the time period is greater than 0, the duration between the starting time and the ending time of the time period includes the receiving time, Or the starting time of the time period is the receiving time, or the ending time of the time period is the receiving time.
  • the beacon frame in the embodiment of the present application may be received in the form of unicast, multicast, or broadcast, which is not limited in this embodiment of the present application.
  • the method before the terminal device listens to the beacon frame sent by the network device in the first time period, the method further includes: the terminal device receiving the interception notification sent by the network device a message, the interception notification message is used to notify the terminal device to listen to the beacon frame in the first time period; the terminal device listens to a beacon frame sent by the network device in the first time period The method includes: the terminal device listening to the beacon frame in the first time period according to the interception notification message.
  • the wake-up frame carries synchronization information
  • the synchronization information is used for time synchronization or frequency synchronization.
  • the terminal device if the terminal device detects the wake-up frame sent by the network device to another terminal device in the first time period, the terminal device uses the wake-up frame as the beacon frame. Can reduce the overhead of beacon frames.
  • the terminal device may be guaranteed at the same time as reducing the overhead of the beacon frame.
  • the beacon frame is obtained in the period of the beacon frame, so that the WUR system of the terminal device can perform periodic sleep, thereby further reducing the power consumption of the terminal device.
  • the terminal device uses the wake-up frame as a beacon frame, and synchronizes with the network device according to the wake-up frame; if the terminal device is During the first time period, the beacon frame sent by the network device is detected, and the terminal device synchronizes with the network device according to the beacon frame.
  • the present application provides yet another method for data transmission, the method comprising:
  • the network device determines that the duration of the pre-acquired transmission opportunity remains in the first time period, where the first time period includes a preset beacon frame transmission time, and the beacon frame is periodically sent, the The duration of a period of time is greater than or equal to 0, and is less than the transmission period of the beacon frame;
  • the network device transmits the beacon frame for the remainder of the transmission opportunity.
  • a transmission opportunity is a time period in a wireless local area networks (WLAN) system, and a network device obtains a transmission right of a channel through competition, and the transmission right enables a network device to obtain a reservation.
  • the right to send data to a mobile terminal during the time period.
  • the TXOP period usually has an upper limit of the length of time, for example, 3ms.
  • the network device may send a beacon frame to the terminal device within the remaining duration of the TXOP. Therefore, the channel competition is re-acquired at the transmission moment of the preset beacon frame, the data transmission right is acquired, the overhead of channel competition is reduced, and the probability of the transmission collision is reduced.
  • the present application provides another method for data transmission, the method comprising:
  • the terminal device determines that, in the first time period, the duration of the transmission opportunity pre-allocated by the network device is still remaining, the first time period includes a sending time of the preset beacon frame, and the beacon frame is periodically sent, The duration of the first time period is greater than or equal to 0, and is less than the transmission period of the beacon frame;
  • the terminal device receives the beacon frame for the remaining time of the transmission opportunity.
  • the present application provides an apparatus for data transmission for performing the method of any of the above first aspect or any possible implementation of the first aspect.
  • the apparatus comprises means for performing the method of any of the above-described first aspect or any of the possible implementations of the first aspect.
  • the present application provides another apparatus for data transmission for performing the method of any of the foregoing second aspect or any of the possible implementations of the second aspect.
  • the apparatus comprises means for performing the method of any of the above-described second aspect or any of the possible implementations of the second aspect.
  • the present application provides yet another apparatus for data transmission for performing the method of any of the foregoing third aspect or any of the possible implementations of the third aspect.
  • the apparatus comprises means for performing the method of any of the possible implementations of the third aspect or the third aspect described above.
  • the present application provides yet another apparatus for data transmission, for performing the method in any of the above possible implementations of the fourth aspect or the fourth aspect.
  • the apparatus comprises means for performing the method of any of the above-described fourth or fourth aspects of the fourth aspect.
  • the present application provides yet another apparatus for data transmission, the apparatus comprising: a processor, a memory, and a transceiver.
  • the processor, the memory and the transceiver are each in communication with each other via an internal connection path for storing computer execution instructions for executing a computer-executable instruction stored by the memory such that the device can pass the transceiver Data interaction with other devices to perform the method of the first aspect or any possible implementation of the first aspect.
  • the present application provides yet another apparatus for data transmission, the apparatus comprising: a processor, a memory, and a transceiver.
  • the processor, the memory and the transceiver are each in communication with each other via an internal connection path for storing computer execution instructions for executing a computer-executable instruction stored by the memory such that the device can pass the transceiver Data interaction with other devices to perform the method of the second aspect or any possible implementation of the second aspect.
  • the present application provides yet another apparatus for data transmission, the apparatus comprising: a processor, a memory, and a transceiver.
  • the processor, the memory and the transceiver are each in communication with each other via an internal connection path for storing computer execution instructions for executing a computer-executable instruction stored by the memory such that the device can pass the transceiver Data interaction with other devices to perform the method of any of the third or third aspects of the possible implementation.
  • the present application provides yet another apparatus for data transmission, the apparatus comprising: a processor, a memory, and a transceiver.
  • the processor, the memory and the transceiver are each in communication with each other via an internal connection path for storing computer execution instructions for executing a computer-executable instruction stored by the memory such that the device can pass the transceiver Data interaction with other devices to perform the method of any of the possible implementations of the fourth aspect or the fourth aspect.
  • the present application provides a computer readable medium for storing a computer program, the computer program comprising instructions for performing the method of the first aspect or any of the possible implementations of the first aspect.
  • the present application provides another computer readable medium for storing a computer program, the computer program comprising instructions for performing the method of any of the second aspect or any of the possible implementations of the second aspect.
  • the present application provides yet another computer readable medium for storing a computer program, the computer program comprising instructions for performing the method of any of the third aspect or any of the possible implementations of the third aspect.
  • the present application provides yet another computer readable medium for storing a computer program, the computer program comprising instructions for performing the method of any of the fourth or fourth aspect of the fourth aspect.
  • FIG. 1 is a schematic structural diagram of a wireless communication system according to an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a method for data transmission provided by an embodiment of the present application
  • FIG. 3 is a schematic flowchart of another method for data transmission provided by an embodiment of the present application.
  • FIG. 4 is a schematic block diagram of an apparatus for data transmission provided by an embodiment of the present application.
  • FIG. 5 is a schematic block diagram of another apparatus for data transmission provided by an embodiment of the present application.
  • FIG. 6 is a schematic block diagram of another apparatus for data transmission provided by an embodiment of the present application.
  • FIG. 7 is a schematic block diagram of another apparatus for data transmission provided by an embodiment of the present application.
  • FIG. 1 shows a wireless communication system 100 to which an embodiment of the present application is applied.
  • the wireless communication system 100 can include at least one network device, and the network device 110 is illustrated in FIG. 1, which can provide communication coverage for a particular geographic area and can communicate with terminal devices located within the coverage area.
  • the network device 110 may be a base transceiver station (BTS) in a GSM system or a CDMA system, or may be a base station (nodeB, NB) in a WCDMA system, or may be an evolved base station in an LTE system (evolved node B). , eNB or eNodeB), or a wireless controller in a cloud radio access network (CRAN).
  • BTS base transceiver station
  • NB base station
  • eNodeB evolved base station in an LTE system
  • CRAN cloud radio access network
  • the network device may also be a relay station, an access point, an in-vehicle device, a wearable device, a network side device in a future 5G network, or a network device in a public land mobile network (PLMN) in a future evolution.
  • PLMN public land mobile network
  • the wireless communication system 100 also includes a plurality of terminal devices located within the coverage of the network device 110, and the terminal device 120 and the terminal device 130 are shown in FIG.
  • FIG. 1 exemplarily shows one network device and two terminal devices.
  • the wireless communication system 100 may include a plurality of network devices and may include other numbers of terminal devices within the coverage of each network device. The application embodiment does not limit this.
  • the wireless communication system 100 may further include other network entities, such as a network controller, a mobility management entity, and the like. The embodiment of the present application is not limited thereto.
  • the terminal device may be mobile or fixed.
  • the terminal device 120 and the terminal device 130 may refer to an access terminal, a user equipment (UE), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, and a terminal.
  • the access terminal may be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), with wireless communication.
  • the terminal device 120 and the terminal device 130 can intelligently select an appropriate time to enter the power saving/sleep mode to reduce power consumption, and the network device 110 can wake them up when needed (eg, encounter emergency/real time) Business needs). Since the WUR operates in the narrowband mode, the terminal device 120 or the terminal device 130 can continuously listen for the narrowband signal when the primary no radio is off in the power saving mode, and once the receiving device sends the wakeup frame, the primary radio is turned on.
  • the network device needs to periodically send a beacon frame to the terminal device that is associated with the power saving mode, so that the terminal device knows that the network device is in a working state, and the unrelated terminal device can also pass the letter.
  • the frame is aware of the existence of the network device.
  • beacon frame Since the transmission rate of the beacon frame is very low, periodically transmitting the beacon frame will occupy a large amount of air interface overhead.
  • the network device determines that a first wake-up frame to be sent exists in a first time period, where the first time period includes a preset time of sending a beacon frame, and the beacon The frame is periodically sent.
  • the duration of the first time period is greater than or equal to 0, and is less than the transmission period of the beacon frame.
  • the network device sends the first wake-up frame instead of transmitting the beacon frame, which can reduce the beacon.
  • the overhead of the frame is a first wake-up frame to be sent exists in a first time period, where the first time period includes a preset time of sending a beacon frame, and the beacon The frame is periodically sent.
  • the duration of the first time period is greater than or equal to 0, and is less than the transmission period of the beacon frame.
  • the network device sends the first wake-up frame instead of sending the beacon frame, so that the network device does not need to send the beacon frame at the sending moment, and correspondingly, the second terminal except the first terminal device.
  • the device can use the first wake-up frame as the beacon frame, and therefore, the overhead of the beacon frame can be reduced.
  • FIG. 2 is a schematic flowchart of a method 200 for data transmission provided by an embodiment of the present application.
  • the method 200 can be applied to, for example, the wireless communication system shown in FIG. 1. It should be understood that the method 200 can be performed by a network device.
  • the network device can be, for example, an access point.
  • the network device determines that, in the first time period, there is a first wake-up frame to be sent, where the first wake-up frame is used to wake up the first terminal device, where the first time period includes a first sending of the preset beacon frame.
  • the beacon frame is periodically sent, and the duration of the first time period is greater than or equal to 0, and is less than the transmission period of the beacon frame, where when the duration of the first time period is equal to 0, the first A time period is the first transmission time.
  • the network device sends the first wake-up frame instead of sending the beacon frame.
  • the first time period in the embodiment of the present application may be at least one time period, and the first sending time may be at least one sending time.
  • the first sending time may be a sending time of any one of the sending periods of the beacon frame, where the first time period may be a time period including at least the first sending time, and the first time period is The duration is less than the transmission period.
  • the first sending moment may be multiple sending moments
  • the multiple sending moments may be multiple consecutive periods of sending moments, or multiple non-continuous periods of transmitting moments
  • the multiple times A segment can be understood as a time period corresponding to each one of the multiple transmission times
  • the multiple wake-up frames can be understood as a wake-up frame to be sent in each time period, which is not limited in this embodiment of the present application.
  • the first time period in the embodiment of the present application may be at least one time period
  • the first sending time may be at least one sending time
  • the first wake-up frame may be at least one wake-up frame
  • the first sending time is
  • the plurality of transmission times may be a plurality of consecutive transmission times or a plurality of non-continuous periodic transmission times
  • the plurality of time periods may be understood as each of the plurality of transmission times.
  • the one-to-one corresponding time period, the multiple wake-up frames can be understood as the wake-up frame to be sent in each time period, which is not limited in this embodiment of the present application.
  • the duration of the time period corresponding to each of the multiple transmission times may be equal or different, which is not limited in this embodiment of the present application.
  • time period corresponding to the sending moment can be understood as the time period including at least the sending moment, that is, the duration of the time period is greater than or equal to 0.
  • the time period is the transmission time; when the duration of the time period is greater than 0, the duration between the start time and the end time of the time period includes the transmission time, Or the starting time of the time period is the sending time, or the ending time of the time period is the sending time.
  • the beacon frame in the embodiment of the present application may be sent in the form of unicast, multicast, or broadcast, which is not limited in this embodiment of the present application.
  • the network device determines that the first wake-up frame to be sent exists in the first time period, where the first time period includes a first sending time of the preset beacon frame, and the beacon The frame is periodically sent.
  • the duration of the first time period is greater than or equal to 0, and is less than the transmission period of the beacon frame.
  • the network device sends the first wake-up frame instead of transmitting the beacon frame, which can reduce the beacon.
  • the overhead of the frame is
  • the network device sends the first wake-up frame instead of sending the beacon frame, so that the network device does not need to send the beacon frame at the sending moment, and correspondingly, other terminal devices except the first terminal device.
  • the first wake-up frame can be used as a beacon frame, and therefore, the overhead of the beacon frame can be reduced.
  • the network device determines that there is a wake-up frame to be sent in a time period corresponding to each transmission moment of the beacon frame, and transmits a wake-up frame instead of transmitting the beacon frame, then while reducing the overhead of the beacon frame, It is also possible to ensure that the terminal device obtains a beacon frame within the period of each beacon frame, so that the WUR system of the terminal device can perform periodic sleep, thereby further reducing the power consumption of the terminal device.
  • the first wake-up frame may carry synchronization information, which is used for time synchronization or frequency synchronization.
  • the first wake-up frame may carry a synchronization information field, where the synchronization information field is used to indicate time domain information or frequency information of the network device, so that the terminal device performs time with the network device according to the synchronization information field. Synchronization or frequency synchronization.
  • the network device sends the first wake-up frame, and the first wake-up frame may be sent by the network device at a first sending rate, where the first sending rate is less than a preset rate threshold.
  • the network device reduces the transmission rate of the first wake-up frame to be low enough, so that more terminal devices can detect the first wake-up frame, thereby correctly parsing the first A wake-up frame is used as the beacon frame.
  • the network device may send a interception notification message to the second terminal device, where the interception notification message is used to indicate that the second terminal device listens to the beacon frame in the first time period.
  • the second terminal device in the embodiment of the present application may be a terminal device other than the first terminal device, where the first terminal device and the second terminal device may be terminal devices associated with the network device. .
  • the network device may carry the indication information in the sending the interception notification message, where the indication information is used to indicate that if the second terminal device detects the first wake-up frame sent by the network device in the first time period, Then, the second terminal device uses the first wake-up frame as the beacon frame; or the network device may pre-arrange the transmission policy of the beacon frame of the beacon frame with the second terminal device, which is not limited in this embodiment of the present application. .
  • the network device may send the first wake-up frame immediately when it is determined that the first wake-up frame exists, or may send the first time after determining that the first wake-up frame exists.
  • the wake-up frame is not limited in this embodiment of the present application.
  • the manner in which the network device and the second terminal device obtain the information of the first time period is not limited in the embodiment of the present application.
  • the network device and the second terminal device may pre-agreed a start frame and a sending period of the beacon frame transmission, and determine each of the beacon frames according to the start frame and the sending period. The first time period in which the sending moment is located.
  • the network device may carry the start frame information, the listening period information, and the listening duration information sent by the beacon frame in the interception notification message.
  • the network device determines that there is no second wake-up frame to be sent in the first time period, and the second wake-up frame is used to wake up the third terminal device, the network device sends the beacon frame.
  • the third terminal device may be the first terminal device, where the second wake-up frame may be the first wake-up frame, that is, if the network device determines that the first wake-up frame exists within the first time period, the network The device sends the wake-up frame instead of sending the beacon frame. If the network device determines that the first wake-up frame does not exist in the first time period, the network device sends the beacon frame, which is not limited in this embodiment of the present application.
  • the network device may send the beacon frame in a first time period, or may send the beacon frame at an end time of the first time period, which is not limited in this embodiment of the present application.
  • the network device determines that, in the first time period, when there is no second wake-up frame to be sent, the network device sends the beacon frame to ensure that the terminal device is in each letter.
  • the beacon frame can be received in the period of the frame.
  • the network device may communicate with a terminal device working on each of the frequency domain channels by using multiple frequency domain channels, if the first wake-up frame is sent on a first frequency domain channel,
  • the plurality of frequency domain channels include the first frequency domain channel, and when the network device determines that there is no second wake-up frame to be sent in the first time period, the network device is in the While transmitting the first wake-up frame on the first frequency domain channel, the network device sends the beacon frame on the second frequency domain channel, where the second wake-up frame is used to wake up the third terminal
  • the third terminal device operates on a second frequency domain channel
  • the multiple frequency domain channels include the second frequency domain channel
  • the second frequency domain channel is different from the first frequency domain channel .
  • a network device can communicate with terminal devices operating on each frequency domain channel in multiple frequency domain channels, and the WUR system usually operates on a narrow band to achieve power saving effects, while the network device is transmitting the most awake frame.
  • the beginning part needs to have a 20MHz preamble sequence. So, once the network device sends the wake-up frame on one of the multiple frequency domain channels, the other frequency domain channels will not be used even if no wake-up frame is sent. Sending other data will be idle.
  • the network device determines that, in the first time period, there is a first wake-up frame to be sent on the first frequency domain channel, and there is no to be sent on the second frequency domain channel.
  • the network device sends the first wake-up frame on the first frequency domain channel, the network device sends a beacon frame on the second frequency domain channel, which can fully utilize the frequency domain bandwidth and improve Utilization of system resources.
  • the network device may be in the first frequency domain channel.
  • the beacon frame is sent to ensure that each terminal device working on the first frequency domain channel can detect the beacon frame. This embodiment of the present application does not limit this.
  • the network device may broadcast on all frequency domain channels.
  • the beacon frame for example, the network device can broadcast the beacon frame on all the frequency domain channels at the same time, which is not limited in this embodiment of the present application.
  • the embodiment of the present application further provides a data transmission method, where the method includes: if the network device determines that the duration of the pre-acquired transmission opportunity remains in the first time period, the network device may Transmitting the beacon frame in the remaining duration of the transmission opportunity, where the first time period includes a preset transmission time of the beacon frame, and the beacon frame is periodically sent, and the duration of the first time period Greater than or equal to 0, and less than the transmission period of the beacon frame.
  • the transmission opportunity TXOP is a time period in the WLAN system, and the network device obtains the transmission right of the channel through competition, and the transmission right enables the network device to obtain the right to transmit data to one mobile terminal within a reserved time period.
  • the TXOP period usually has an upper limit of the length of time, for example, 3ms.
  • the method for transmitting a beacon frame provided by the embodiment of the present application, when the duration of the reserved time period acquired by the network device by the TXOP is still remaining, the network device may send a message to the terminal device within the remaining duration of the TXOP.
  • the frame is framed, thereby avoiding re-competition through the channel at the transmission moment of the preset beacon frame, acquiring the data transmission right, reducing the overhead of channel competition, and reducing the probability of the transmission collision.
  • FIG. 3 is a schematic flowchart of a method 300 for data transmission provided by an embodiment of the present application.
  • the method 300 can be applied to, for example, the wireless communication system shown in FIG. 1. It should be understood that the method 300 can be performed by a terminal device.
  • the terminal device can be, for example, a site.
  • the terminal device listens to the beacon frame sent by the network device in the first time period, where the first time period includes a preset first receiving moment of the beacon frame, and the beacon frame is sent periodically.
  • the duration of the first time period is greater than or equal to 0, and is less than the transmission period of the beacon frame, where the first time period is the first reception when the duration of the first time period is equal to 0. time.
  • the terminal device uses the wake-up frame as a location The beacon frame.
  • the first time period in the embodiment of the present application may be at least one time period, and the first receiving time may be at least one time.
  • the first receiving time may be a receiving time of any one of the receiving periods of the beacon frame, where the first time period may be a time period including at least the first receiving time, and the first time period is The duration is less than the reception period.
  • the first receiving moment when the first receiving moment may be multiple receiving moments, the multiple receiving moments may be multiple consecutive periods of receiving moments, or multiple non-continuous periods of receiving moments, the multiple receiving times A segment can be understood as a time period corresponding to each of the plurality of receiving times, and the plurality of wake-up frames can be understood as a wake-up frame to be received in each time period, which is not limited in this embodiment of the present application.
  • the duration of the time period corresponding to each of the multiple receiving times may be equal or different, which is not limited in this embodiment of the present application.
  • time period corresponding to the receiving moment can be understood as the time period including at least the receiving moment, that is, the duration of the time period is greater than or equal to 0.
  • the time period is the receiving time; when the duration of the time period is greater than 0, the duration between the starting time and the ending time of the time period includes the receiving time, Or the starting time of the time period is the receiving time, or the ending time of the time period is the receiving time.
  • the beacon frame in the embodiment of the present application may be received in the form of unicast, multicast, or broadcast, which is not limited in this embodiment of the present application.
  • the wake-up frame may carry synchronization information, which is used for time synchronization or frequency synchronization.
  • the wake-up frame may carry a synchronization information field, where the synchronization information field is used to indicate time domain information or frequency information of the network device, so that the terminal device performs time synchronization with the network device according to the synchronization information field or Frequency synchronization.
  • the terminal device may receive a interception notification message sent by the network device, where the interception notification message is used to notify the terminal device to listen to the beacon frame in the first time period, the terminal The device may listen to the beacon frame sent by the network device during the first time period according to the interception notification message.
  • the wake-up frame carries synchronization information for time synchronization or frequency synchronization.
  • the terminal device may use any one of the wake-up frames as a beacon frame according to a pre-arrangement with the network device, for example, The wake-up frame with the best channel quality is used as the beacon frame, or the received first wake-up frame can be used as the beacon frame, which is not limited in this embodiment of the present application.
  • the terminal device if the terminal device detects the wake-up frame sent by the network device to another terminal device in the first time period, the terminal device uses the wake-up frame as the beacon frame. Can reduce the overhead of beacon frames.
  • the terminal device may be guaranteed at the same time as reducing the overhead of the beacon frame.
  • the beacon frame is obtained in the period of the beacon frame, so that the WUR system of the terminal device can perform periodic sleep, thereby further reducing the power consumption of the terminal device.
  • the terminal device uses the wake-up frame as a beacon frame, and synchronizes with the network device according to the wake-up frame; if the terminal device is During the first time period, the beacon frame sent by the network device is detected, and the terminal device synchronizes with the network device according to the beacon frame.
  • the embodiment of the present application further provides a method for data transmission, where the method includes: determining, by the terminal device, a duration of a transmission opportunity pre-allocated by the network device in the first time period, the first time period
  • the sending time of the preset beacon frame is sent periodically, the duration of the first time period is greater than or equal to 0, and is less than the sending period of the beacon frame; the terminal device is in the transmission opportunity
  • the beacon frame is received for the remaining duration.
  • the terminal device receives the beacon frame sent by the network device within the remaining time period of the TXOP reserved time period acquired by the network device, which reduces the probability of the terminal device transmitting the collision.
  • FIG. 4 is a schematic block diagram of an apparatus 400 for data transmission provided by an embodiment of the present application, and the apparatus 400 may be, for example, a network device as shown in FIG. 1.
  • the device 400 includes:
  • the determining unit 410 is configured to determine that, in the first time period, there is a first wake-up frame to be sent, where the first wake-up frame is used to wake up the first terminal device, where the first time period includes a preset beacon frame
  • the first transmission time, the beacon frame is periodically sent, the duration of the first time period is greater than or equal to 0, and is smaller than the transmission period of the beacon frame, where, when the first time period When the duration is equal to 0, the first time period is the first sending time;
  • the communication unit 420 is configured to send the first wake-up frame determined by the determining unit 410 instead of transmitting the beacon frame.
  • the first wake-up frame carries synchronization information, and the synchronization information is used for time synchronization or frequency synchronization.
  • the communication unit is specifically configured to send the first wake-up frame at a first sending rate, where the first sending rate is less than a preset rate threshold.
  • the communication unit is configured to send a interception notification message to the second terminal device, where the interception notification message is used to indicate that the second terminal device is in the The beacon frame is listened to during the first time period.
  • the network device communicates with a terminal device working on each of the frequency domain channels by using a plurality of frequency domain channels, where the first wake-up frame is sent on a first frequency domain channel, where the multiple The frequency domain channel includes the first frequency domain channel; the determining unit is further configured to determine that, in the first time period, there is no second wake frame to be sent, and the second wake frame is used to wake up a third terminal device, where the third terminal device operates on a second frequency domain channel, the multiple frequency domain channels include the second frequency domain channel, and the second frequency domain channel and the first frequency domain The channel is different; the communication unit is further configured to send the beacon frame on the second frequency domain channel while transmitting the first wake-up frame on the first frequency domain channel.
  • the device 400 may be specifically the network device in the foregoing method embodiment, and the device 400 may be used to perform various processes and/or steps corresponding to the network device in the foregoing method embodiment. To avoid repetition, we will not repeat them here.
  • the apparatus 400 herein may be 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 (eg, a shared processor, a proprietary processor, or a group) for executing one or more software or firmware programs. Processors, etc.) and memory, merge logic, and/or other suitable components that support the described functionality.
  • ASIC application specific integrated circuit
  • processor eg, a shared processor, a proprietary processor, or a group
  • processors, etc. and memory, merge logic, and/or other suitable components that support the described functionality.
  • FIG. 5 shows an apparatus 500 for data transmission provided by an embodiment of the present application.
  • the device 500 can be, for example, a terminal device as shown in FIG.
  • the device 500 includes:
  • the communication unit 510 is configured to listen to a beacon frame sent by the network device in a first time period, where the first time period includes a preset first receiving moment of the beacon frame, and the beacon frame is a period If the length of the first time period is equal to 0, the first time period is The first sending moment;
  • the processing unit 520 is configured to: if the communication unit 510 detects the wake-up frame sent by the network device in the first time period, where the wake-up frame is used to wake up other terminal devices, use the wake-up frame as The beacon frame.
  • the communication unit is further configured to: before listening to the beacon frame sent by the network device in the first time period, receiving a interception notification message sent by the network device, where the interception notification message is used to notify The terminal device listens to the beacon frame in the first time period; and listens to the beacon frame in the first time period according to the interception notification message.
  • the wake-up frame carries synchronization information, and the synchronization information is used for time synchronization or frequency synchronization.
  • the device 500 may be specifically the terminal device in the foregoing method embodiment, and the device 500 may be used to perform various processes and/or steps corresponding to the terminal device in the foregoing method embodiment. To avoid repetition, we will not repeat them here.
  • the apparatus 500 herein may be 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 (eg, a shared processor, a proprietary processor, or a group processor, etc.) for executing one or more software or firmware programs, and Memory, merge logic, and/or other suitable components that support the described functionality.
  • ASIC application specific integrated circuit
  • processor eg, a shared processor, a proprietary processor, or a group processor, etc.
  • Memory merge logic, and/or other suitable components that support the described functionality.
  • FIG. 6 shows a schematic block diagram of an apparatus 600 for transmitting data in an embodiment of the present application.
  • the apparatus 600 includes a processor 610 and a transceiver 620.
  • the processor 610 is configured to determine that, in the first time period, there is a first wake-up frame to be sent, where the first wake-up frame is used to wake up the first terminal device, where the first time period includes a preset beacon frame.
  • the first transmission time, the beacon frame is periodically sent, the duration of the first time period is greater than or equal to 0, and is less than the transmission period of the beacon frame, wherein, when the first time period When the duration is equal to 0, the first time period is the first transmission time.
  • the transceiver 620 is configured to send the first wake-up frame determined by the determining unit 410 instead of transmitting the beacon frame.
  • apparatus 600 can also include a memory, which can include read only memory and random access memory, and provides instructions and data to the processor.
  • a portion of the memory may also include a non-volatile random access memory.
  • the memory can also store information of the device type.
  • the processor 610 can be configured to execute instructions stored in a memory, and when the processor executes the instructions, the processor can perform various steps corresponding to the network device in the above method embodiments.
  • the processor may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processing (DSP), dedicated Integrated circuit ASIC, field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc.
  • DSP digital signal processing
  • FPGA field programmable gate array
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • FIG. 7 shows a schematic block diagram of an apparatus 700 for data transmission in an embodiment of the present application.
  • the apparatus 700 includes a processor 710 and a transceiver 720.
  • the transceiver 720 is configured to listen to a beacon frame sent by the network device in a first time period, where the first time period includes a preset first receiving moment of the beacon frame, and the beacon frame is a period If the length of the first time period is equal to 0, the first time period is The first transmission time.
  • the processor 710 is configured to: if the communication unit 510 hears the wake-up frame sent by the network device in the first time period, where the wake-up frame is used to wake up other terminal devices, the wake-up frame is used as The beacon frame.
  • apparatus 700 can also include a memory, which can include read only memory and random access memory, and provides instructions and data to the processor.
  • a portion of the memory may also include a non-volatile random access memory.
  • the memory can also store information of the device type.
  • the processor 710 can be configured to execute instructions stored in a memory, and when the processor executes the instructions, the processor can perform various steps corresponding to the terminal device in the above method embodiments.
  • the processor may be a central processing unit (CPU), and the processor may also be other general purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gates. Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, etc.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • each step of the above method may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software.
  • the steps of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in a memory, and the processor executes instructions in the memory, in combination with hardware to perform the steps of the above method. To avoid repetition, it will not be described in detail here.
  • the size of the sequence numbers of the foregoing processes does not mean the order of execution sequence, and the order of execution of each process should be determined by its function and internal logic, and should not be applied to the embodiment of the present application.
  • the implementation process constitutes any limitation.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the 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 of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the computer program product includes one or more computer instructions.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transmission to another website site, computer, server or data center via wired (eg coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)). )Wait.
  • a magnetic medium eg, a floppy disk, a hard disk, a magnetic tape
  • an optical medium eg, a digital video disc (DVD)
  • DVD digital video disc
  • SSD solid state disk

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Abstract

本申请提供了一种数据传输的方法和装置，该方法包括：网络设备确定在第一时间段内，存在待发送的第一唤醒帧，该第一唤醒帧用于唤醒第一终端设备，该第一时间段包括预设的信标帧的第一发送时刻，该信标帧是周期性发送的，该第一时间段的时长大于或等于0，且小于该信标帧的发送周期，其中，当该第一时间段的时长等于0时，该第一时间段为该第一发送时刻；该网络设备发送该第一唤醒帧，以代替发送该信标帧。本申请实施例提供的数据传输的方法和装置，能够降低信标帧的开销。

Description

数据传输的方法和装置
本申请要求于2017年03月28日提交中国专利局、申请号为201710193015.8、发明名称为“数据传输的方法和装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域，并且更具体地，涉及通信领域中数据传输的方法和装置。
背景技术
随着移动应用的日趋多样化和移动终端的不断发展，出现了大量使用电池供电的移动终端，降低移动终端的能耗成为未来无线网络的重要技术之一。唤醒无线电(wake-up radio，WUR)技术是一种降低终端功耗与成本的技术，在WUR系统中，移动终端能够智能地选择合适的时间进入省电模式，即关闭移动终端的主无线电，使该终端工作在窄带模式，且能够在关闭主无线电的时候持续侦听窄带信号，一旦接收到网络设备发送的唤醒帧(wake-up packet，WUP)，则该终端将主无线电打开。
在WUR系统中，网络设备需要周期性地发送信标帧，以使得与该网络设备关联的移动终端获知该网络设备处于工作状态。另外，未与该网络设备关联的移动终端也可以通过该信标帧感知该网络设备的存在。但是，网络设备周期性的传输信标帧会占用大量的空口资源，即信标帧的开销比较大。
现有的WUR中，当网络设备给一个移动终端发送唤醒帧的时候，其他移动终端可以将该唤醒帧作为信标帧，当网络设备给另一个移动终端发送另一个唤醒帧时，其他终端又可以将该另一个唤醒帧作为信标帧，直到网络设备确定在预设时间段内，没有给任一移动终端发送唤醒帧时，才会以广播的形式向所有移动终端发送信标帧，以降低信标帧的开销。
发明内容
本申请提供了一种用于小区切换的方法、装置和系统，能够提高小区切换效率。
本申请提供了一种数据传输的方法和装置，能够降低信标帧的开销。
第一方面，本申请实提供了一种数据传输的方法，该方法包括：
网络设备确定在第一时间段内，存在待发送的第一唤醒帧，所述第一唤醒帧用于唤醒第一终端设备，所述第一时间段包括预设的信标帧的第一发送时刻，所述信标帧是周期性发送的，所述第一时间段的时长大于或等于0，且小于所述信标帧的发送周期，其中，当该第一时间段的时长等于0时，该第一时间段为该第一发送时刻；
所述网络设备发送所述第一唤醒帧，以代替发送所述信标帧。
可选地，本申请实施例中的第一时间段可以为至少一个时间段，第一发送时刻可以为 至少一个发送时刻，第一唤醒帧可以为至少一个唤醒帧，当该第一发送时刻为多个发送时刻时，该多个发送时刻可以为多个连续周期的发送时刻，或多个非连续周期的发送时刻，该多个时间段可以理解为与该多个发送时刻中每个发送时刻一一对应的时间段，该多个唤醒帧可以理解为每个时间段内待发送的唤醒帧，本申请实施例对此不作限定。
可选地，该多个发送时刻中每个发送时刻对应的时间段的时长可以相等也可以不等，本申请实施例对此不作限定。
应理解，发送时刻对应的时间段，可以理解为至少包含该发送时刻的时间段，即该时间段的时长大于或等于0。
还应理解，该时间段的时长等于0时，该时间段即为该发送时刻；该时间段的时长大于0时，该时间段的起始时刻和结束时刻之间的时长包含该发送时刻，或者该时间段的起始时刻为该发送时刻，或者该时间段的结束时刻为该发送时刻。
可选地，本申请实施例中的信标帧可以以单播、组播或者广播的形式发送，本申请实施例对此不作限定。
本申请实施例提供的数据传输的方法，网络设备确定在第一时间段内存在待发送的第一唤醒帧，该第一时间段包括预设的信标帧的第一发送时刻，该信标帧是周期性发送的，该第一时间段的时长大于或等于0，且小于该信标帧的发送周期，该网络设备发送该第一唤醒帧以代替发送该信标帧，能够减少信标帧的开销。
应理解，该网络设备发送该第一唤醒帧，以代替发送该信标帧，使得该网络设备在该发送时刻无需发送该信标帧，相应地，除该第一终端设备外的其它终端设备可以将该第一唤醒帧作为信标帧，因此，能够减少信标帧的开销。
另外，若网络设备确定在信标帧的每个发送时刻对应的时间段内都存在待发送的唤醒帧，并通过发送唤醒帧代替发送信标帧，那么在降低信标帧的开销的同时，还可能保证终端设备在每个信标帧的周期内获得信标帧，使得终端设备的WUR系统能够进行周期性睡眠，从而能够进一步降低终端设备的能耗。
在一种可能的实现方式中，所述第一唤醒帧携带同步信息，所述同步信息用于时间同步或频率同步。
作为一个可选实施例，该第一唤醒帧可以携带同步信息字段，该同步信息字段用于指示网络设备的时域信息或频率信息，以便于终端设备根据该同步信息字段与该网络设备进行时间同步或频率同步。
在另一种可能的实现方式中，其特征在于，所述网络设备发送所述第一唤醒帧，包括：所述网络设备以第一发送速率发送所述第一唤醒帧，所述第一发送速率小于预设的速率阈值。
本申请实施例提供的数据传输的方法，网络设备将第一唤醒帧的发送速率降到足够低，能够使更多的终端设备都能够侦听到该第一唤醒帧，从而能够正确解析该第一唤醒帧，并将该第一唤醒帧作为该信标帧。
在又一种可能的实现方式中，在所述网络设备发送所述第一唤醒帧之前，所述方法还包括：所述网络设备向第二终端设备发送侦听通知消息，所述侦听通知消息用于指示所述第二终端设备在所述第一时间段内侦听所述信标帧。
可选地，本申请实施例对网络设备与第二终端设备获取第一时间段的信息的方式不作 限定。
作为一个可选实施例，该网络设备与该第二终端设备可以预先约定信标帧发送的起始帧和发送周期，并根据该起始帧和该发送周期，确定该信标帧的每个发送时刻所在的第一时间段。
作为另一个可选实施例，该网络设备可以在该侦听通知消息中携带信标帧发送的起始帧信息、侦听周期信息和侦听时长信息。
在又一种可能的实现方式中，所述网络设备通过多个频域信道与工作在每个所述频域信道上的终端设备通信，所述第一唤醒帧是在第一频域信道上发送的，所述多个频域信道包括所述第一频域信道，所述方法还包括：所述网络设备确定在所述第一时间段内，不存在待发送的第二唤醒帧，所述第二唤醒帧用于唤醒第三终端设备，所述第三终端设备工作在第二频域信道上，所述多个频域信道包括所述第二频域信道，且所述第二频域信道与所述第一频域信道不同；在所述网络设备在所述第一频域信道上发送所述第一唤醒帧的同时，所述网络设备在所述第二频域信道上发送所述信标帧。
应理解，网络设备可以在多个频域信道与工作在每个频域信道上的终端设备通信，WUR系统通常工作在窄带上，以达到省电的效果，而网络设备在发送唤醒帧的最开始的部分需要有一个20MHz的前导序列，这样以来，一旦网络设备在该多个频域信道中一个频域信道上发送唤醒帧，其他频域信道上即使不发送唤醒帧，也不会用于发送其他数据，即会处于闲置不用的状态。
本申请实施例提供的数据传输的方法，网络设备确定在第一时间段内，存在待在第一频域信道上发送的第一唤醒帧，且不存在待在第二频域信道上发送的第二唤醒帧的时候，在网络设备在该第一频域信道上发送该第一唤醒帧的同时，该网络设备在第二频域信道上发送信标帧，能够充分利用频域带宽，提高系统资源的利用率。
第二方面，本申请提供了一种数据传输的方法，该方法包括：
终端设备在第一时间段内侦听网络设备发送的信标帧，所述第一时间段包括预设的所述信标帧的第一接收时刻，所述信标帧是周期性发送的，所述第一时间段的时长大于或等于0，且小于所述信标帧的接收周期，其中，当该第一时间段的时长等于0时，该第一时间段为该第一接收时刻；
若所述终端设备在所述第一时间段内侦听到所述网络设备发送的唤醒帧，所述唤醒帧用于唤醒其他终端设备，则所述终端设备将所述唤醒帧作为所述信标帧。
可选地，本申请实施例中的第一时间段可以为至少一个时间段，第一接收时刻可以为至少一个接收时刻。
作为一个可选实施例，该第一接收时刻可以为信标帧周期性发送的任意一个接收时刻，该第一时间段可以为至少包含该第一接收时刻的时间段，且该第一时间段的时长小于接收周期。
作为另一个可选实施例，该第一接收时刻可以为多个接收时刻时，该多个接收时刻可以为多个连续周期的接收时刻，或多个非连续周期的接收时刻，该多个时间段可以理解为与该多个接收时刻中每个接收时刻一一对应的时间段，该多个唤醒帧可以理解为每个时间段内待接收的唤醒帧，本申请实施例对此不作限定。
可选地，该多个接收时刻中每个接收时刻对应的时间段的时长可以相等也可以不等， 本申请实施例对此不作限定。
应理解，接收时刻对应的时间段，可以理解为至少包含该接收时刻的时间段，即该时间段的时长大于或等于0。
还应理解，该时间段的时长等于0时，该时间段即为该接收时刻；该时间段的时长大于0时，该时间段的起始时刻和结束时刻之间的时长包含该接收时刻，或者该时间段的起始时刻为该接收时刻，或者该时间段的结束时刻为该接收时刻。
可选地，本申请实施例中的信标帧可以以单播、组播或者广播的形式接收，本申请实施例对此不作限定。
在一个可能的实现方式中，在所述终端设备在第一时间段内侦听网络设备发送的信标帧之前，所述方法还包括：所述终端设备接收所述网络设备发送的侦听通知消息，所述侦听通知消息用于通知所述终端设备在所述第一时间段内侦听所述信标帧；所述终端设备在第一时间段内侦听网络设备发送的信标帧，包括：所述终端设备根据所述侦听通知消息，在所述第一时间段内侦听所述信标帧。
在另一个可能的实现方式中，所述唤醒帧携带同步信息，所述同步信息用于时间同步或频率同步。
本申请实施例提供的数据传输的方法，若该终端设备在该第一时间段内侦听到该网络设备向其他终端设备发送的唤醒帧，则该终端设备将该唤醒帧作为该信标帧，能够降低信标帧的开销。
另外，若终端设备在信标帧的每个接收时刻对应的时间段，都将接收到的唤醒帧作为信标帧，那么在降低信标帧的开销的同时，还可能保证终端设备在每个信标帧的周期内获得信标帧，使得终端设备的WUR系统能够进行周期性睡眠，从而能够进一步降低终端设备的能耗。
可选地，若终端设备在第一时间段内侦听到网络设备发送的唤醒帧，则该终端设备将该唤醒帧作为信标帧，根据该唤醒帧与网络设备进行同步；若终端设备在该第一时间段内侦听到网络设备发送的信标帧，则该终端设备根据该信标帧与网络设备进行同步。
第三方面，本申请提供了又一种数据传输的方法，该方法包括：
网络设备确定在第一时间段内，预先获取到的传输机会的时长还有剩余，该第一时间段包括预设的信标帧的发送时刻，该信标帧是周期性发送的，该第一时间段的时长大于或等于0，且小于该信标帧的发送周期；
该网络设备在该传输机会剩余的时长内，发送该信标帧。
应理解，传输机会(transmission opportunity，TXOP)是无线局域网络(wireless local area networks，WLAN)系统中的一个时间段，网络设备通过竞争获得信道的发送权，该发送权使得网络设备获得在预留的时间段内，向一个移动终端发送数据的权力。在该预留的时间段内，其他的移动终端会保持静默，因此，不会对该移动终端带来干扰或与该移动终端产生传输碰撞。其中，TXOP时间段通常会有一个时间长度的上限，例如为3ms。
本申请实施例提供的数据传输的方法，网络设备通过TXOP获取到的预留时间段的时长还有剩余的时，该网络设备可以在该TXOP剩余的时长内，向该终端设备发送信标帧，从而避免了在预设的信标帧的发送时刻重新通过信道竞争，获取到数据发送权，降低了信道竞争的开销，并且减少了传输碰撞的概率。
第四方面，本申请提供了又一种数据传输的方法，该方法包括：
终端设备确定在第一时间段内，网络设备预先分配的传输机会的时长还有剩余，该第一时间段包括预设的信标帧的发送时刻，该信标帧是周期性发送的，该第一时间段的时长大于或等于0，且小于该信标帧的发送周期；
该终端设备在该传输机会剩余的时长内，接收该信标帧。
第五方面，本申请提供了一种数据传输的装置，用于执行上述第一方面或第一方面的任意可能的实现方式中的方法。具体地，该装置包括用于执行上述第一方面或第一方面的任意可能的实现方式中的方法的单元。
第六方面，本申请提供了另一种数据传输的装置，用于执行上述第二方面或第二方面的任意可能的实现方式中的方法。具体地，该装置包括用于执行上述第二方面或第二方面的任意可能的实现方式中的方法的单元。
第七方面，本申请提供了又一种数据传输的装置，用于执行上述第三方面或第三方面的任意可能的实现方式中的方法。具体地，该装置包括用于执行上述第三方面或第三方面的任意可能的实现方式中的方法的单元。
第八方面，本申请提供了又一种数据传输的装置，用于执行上述第四方面或第四方面的任意可能的实现方式中的方法。具体地，该装置包括用于执行上述第四方面或第四方面的任意可能的实现方式中的方法的单元。
第九方面，本申请提供了又一种数据传输的装置，该装置包括：处理器、存储器和收发器。其中，该处理器、该存储器和该收发器均通过内部连接通路互相通信，该存储器用于存储计算机执行指令，该处理器用于执行该存储器存储的计算机执行指令，使得该装置可以通过该收发器与其它装置进行数据交互来执行第一方面或第一方面的任意可能的实现方式中的方法。
第十方面，本申请提供了又一种数据传输的装置，该装置包括：处理器、存储器和收发器。其中，该处理器、该存储器和该收发器均通过内部连接通路互相通信，该存储器用于存储计算机执行指令，该处理器用于执行该存储器存储的计算机执行指令，使得该装置可以通过该收发器与其它装置进行数据交互来执行第二方面或第二方面的任意可能的实现方式中的方法。
第十一方面，本申请提供了又一种数据传输的装置，该装置包括：处理器、存储器和收发器。其中，该处理器、该存储器和该收发器均通过内部连接通路互相通信，该存储器用于存储计算机执行指令，该处理器用于执行该存储器存储的计算机执行指令，使得该装置可以通过该收发器与其它装置进行数据交互来执行第三方面或第三方面的任意可能的实现方式中的方法。
第十二方面，本申请提供了又一种数据传输的装置，该装置包括：处理器、存储器和收发器。其中，该处理器、该存储器和该收发器均通过内部连接通路互相通信，该存储器用于存储计算机执行指令，该处理器用于执行该存储器存储的计算机执行指令，使得该装置可以通过该收发器与其它装置进行数据交互来执行第四方面或第四方面的任意可能的实现方式中的方法。
第十三方面，本申请提供了一种计算机可读介质，用于存储计算机程序，该计算机程序包括用于执行第一方面或第一方面的任意可能的实现方式中的方法的指令。
第十四方面，本申请提供了另一种计算机可读介质，用于存储计算机程序，该计算机程序包括用于执行第二方面或第二方面的任意可能的实现方式中的方法的指令。
第十五方面，本申请提供了又一种计算机可读介质，用于存储计算机程序，该计算机程序包括用于执行第三方面或第三方面的任意可能的实现方式中的方法的指令。
第十六方面，本申请提供了又一种计算机可读介质，用于存储计算机程序，该计算机程序包括用于执行第四方面或第四方面的任意可能的实现方式中的方法的指令。
附图说明
图1是本申请实施例提供的无线通信系统的示意性结构图；
图2是本申请实施例提供的数据传输的方法的示意性流程图；
图3是本申请实施例提供的另一数据传输的方法的示意性流程图；
图4是本申请实施例提供的数据传输的装置的示意性框图；
图5是本申请实施例提供的另一数据传输的装置的示意性框图；
图6是本申请实施例提供的又一数据传输的装置的示意性框图；
图7是本申请实施例提供的又一数据传输的装置的示意性框图。
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。
图1示出了本申请实施例应用的无线通信系统100。该无线通信系统100可以包括至少一个网络设备，图1中示出了网络设备110，网络设备110可以为特定的地理区域提供通信覆盖，并且可以与位于该覆盖区域内的终端设备进行通信。该网络设备110可以是GSM系统或CDMA系统中的基站(base transceiver station，BTS)，也可以是WCDMA系统中的基站(nodeB，NB)，还可以是LTE系统中的演进型基站(evolved node B，eNB或eNodeB)，或者是云无线接入网络(cloud radio access network，CRAN)中的无线控制器。该网络设备还可以为中继站、接入点、车载设备、可穿戴设备、未来5G网络中的网络侧设备或者未来演进的公共陆地移动网络(public land mobile network，PLMN)中的网络设备等。
该无线通信系统100还包括位于网络设备110覆盖范围内的多个终端设备，图1中示出了终端设备120和终端设备130。
图1示例性地示出了一个网络设备和两个终端设备，可选地，该无线通信系统100可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括其它数量的终端设备，本申请实施例对此不做限定。可选地，该无线通信系统100还可以包括网络控制器、移动管理实体等其他网络实体，本申请实施例不限于此。
应理解，在本申请实施例中，终端设备可以是移动的或固定的。该终端设备120和该终端设备130可以指接入终端、用户设备(user equipment，UE)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置等。接入终端可以是蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字处理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解 调器的其它处理设备、车载设备、可穿戴设备、未来5G网络中的终端设备或者未来演进的PLMN中的终端设备等。
应理解，在该系统100中，终端设备120和终端设备130可以智能地选择合适的时间进入省电/休眠模式以降低能耗，网络设备110在需要的时候可以唤醒它们(如遇到紧急/实时业务需求)。由于WUR工作在窄带模式，终端设备120或终端设备130在省电模式下，在主无无线电关闭的时候能够持续侦听窄带信号，一旦接收到网络设备发送的唤醒帧，则将主无线电打开。
还应理解，网络设备需要周期性向与其关联的、进入省电模式的终端设备发送信标帧，以使得这些终端设备获知该网络设备处于工作状态，此外，未关联的终端设备也可以通过该信标帧感知该网络设备的存在。
由于信标帧的传输速率很低，因此周期性传输信标帧将占用大量的空口开销。
本申请实施例提供的数据传输的方法和装置，网络设备确定在第一时间段内存在待发送的第一唤醒帧，该第一时间段包括预设的信标帧的发送时刻，该信标帧是周期性发送的，该第一时间段的时长大于或等于0，且小于该信标帧的发送周期，该网络设备发送该第一唤醒帧以代替发送该信标帧，能够减少信标帧的开销。
应理解，该网络设备发送该第一唤醒帧，以代替发送该信标帧，使得该网络设备在该发送时刻无需发送该信标帧，相应地，除该第一终端设备以外的第二终端设备可以将该第一唤醒帧作为该信标帧，因此，能够减少信标帧的开销。
图2示出了本申请实施例提供的数据传输的方法200的示意性流程图，该方法200例如可以应用于如图1所示的无线通信系统，应理解，该方法200可以由网络设备执行，该网络设备例如可以为接入点。
S210，网络设备确定在第一时间段内，存在待发送的第一唤醒帧，该第一唤醒帧用于唤醒第一终端设备，该第一时间段包括预设的信标帧的第一发送时刻，该信标帧是周期性发送的，该第一时间段的时长大于或等于0，且小于该信标帧的发送周期，其中，当该第一时间段的时长等于0时，该第一时间段为该第一发送时刻。
S220，所述网络设备发送所述第一唤醒帧，以代替发送所述信标帧。
可选地，本申请实施例中的第一时间段可以为至少一个时间段，第一发送时刻可以为至少一个发送时刻。
作为一个可选实施例，该第一发送时刻可以为信标帧任意一个发送周期的发送时刻，该第一时间段可以为至少包含该第一发送时刻的时间段，且该第一时间段的时长小于发送周期。
作为另一个可选实施例，该第一发送时刻可以为多个发送时刻时，该多个发送时刻可以为多个连续周期的发送时刻，或多个非连续周期的发送时刻，该多个时间段可以理解为与该多个发送时刻中每个发送时刻一一对应的时间段，该多个唤醒帧可以理解为每个时间段内待发送的唤醒帧，本申请实施例对此不作限定。
可选地，本申请实施例中的第一时间段可以为至少一个时间段，第一发送时刻可以为至少一个发送时刻，第一唤醒帧可以为至少一个唤醒帧，当该第一发送时刻为多个发送时刻时，该多个发送时刻可以为多个连续周期的发送时刻，或多个非连续周期的发送时刻，该多个时间段可以理解为与该多个发送时刻中每个发送时刻一一对应的时间段，多个唤醒 帧可以理解为每个时间段内待发送的唤醒帧，本申请实施例对此不作限定。
可选地，该多个发送时刻中每个发送时刻对应的时间段的时长可以相等也可以不等，本申请实施例对此不作限定。
应理解，发送时刻对应的时间段，可以理解为至少包含该发送时刻的时间段，即该时间段的时长大于或等于0。
还应理解，该时间段的时长等于0时，该时间段即为该发送时刻；该时间段的时长大于0时，该时间段的起始时刻和结束时刻之间的时长包含该发送时刻，或者该时间段的起始时刻为该发送时刻，或者该时间段的结束时刻为该发送时刻。
可选地，本申请实施例中的信标帧可以以单播、组播或者广播的形式发送，本申请实施例对此不作限定。
本申请实施例提供的数据传输的方法，网络设备确定在第一时间段内存在待发送的第一唤醒帧，该第一时间段包括预设的信标帧的第一发送时刻，该信标帧是周期性发送的，该第一时间段的时长大于或等于0，且小于该信标帧的发送周期，该网络设备发送该第一唤醒帧以代替发送该信标帧，能够减少信标帧的开销。
应理解，该网络设备发送该第一唤醒帧，以代替发送该信标帧，使得该网络设备在该发送时刻无需发送该信标帧，相应地，除该第一终端设备外的其它终端设备可以将该第一唤醒帧作为信标帧，因此，能够减少信标帧的开销。
另外，若网络设备确定在信标帧的每个发送时刻对应的时间段内都存在待发送的唤醒帧，并通过发送唤醒帧代替发送信标帧，那么在降低信标帧的开销的同时，还可能保证终端设备在每个信标帧的周期内获得信标帧，使得终端设备的WUR系统能够进行周期性睡眠，从而能够进一步降低终端设备的能耗。
可选地，该第一唤醒帧可以携带同步信息，该同步信息用于时间同步或频率同步。
作为一个可选实施例，该第一唤醒帧可以携带同步信息字段，该同步信息字段用于指示网络设备的时域信息或频率信息，以便于终端设备根据该同步信息字段与该网络设备进行时间同步或频率同步。
可选地，该网络设备发送该第一唤醒帧，可以为该网络设备以第一发送速率发送该第一唤醒帧，该第一发送速率小于预设的速率阈值。
本申请实施例提供的数据传输的方法，网络设备将第一唤醒帧的发送速率降到足够低，能够使更多的终端设备都能够侦听到该第一唤醒帧，从而能够正确解析该第一唤醒帧，并将该第一唤醒帧作为该信标帧。
可选地，在S210之前，该网络设备可以向第二终端设备发送侦听通知消息，该侦听通知消息用于指示该第二终端设备在该第一时间段内侦听该信标帧。
可选地，本申请实施例中的第二终端设备可以为除该第一终端设备外的其它终端设备，该第一终端设备和该第二终端设备可以为与该网络设备相关联的终端设备。
可选地，该网络设备可以在该发送侦听通知消息中携带指示信息，该指示信息用于指示若该第二终端设备在第一时间段内侦听到网络设备发送的第一唤醒帧，则该第二终端设备将该第一唤醒帧作为该信标帧；或者该网络设备可以与第二终端设备预先约定上述信标帧的信标帧的发送策略，本申请实施例对此不作限定。
可选地，在S220中，该网络设备可以在确定存在该第一唤醒帧时，立即发送该第一 唤醒帧，或者可以在确定存在该第一唤醒帧之后的第一时长内发送该第一唤醒帧，本申请实施例对此不作限定。
可选地，本申请实施例对网络设备与第二终端设备获取第一时间段的信息的方式不作限定。
作为一个可选实施例，该网络设备与该第二终端设备可以预先约定信标帧发送的起始帧和发送周期，并根据该起始帧和该发送周期，确定该信标帧的每个发送时刻所在的第一时间段。
作为另一个可选实施例，该网络设备可以在该侦听通知消息中携带信标帧发送的起始帧信息、侦听周期信息和侦听时长信息。
可选地，若该网络设备确定在该第一时间段内，不存在待发送的第二唤醒帧，该第二唤醒帧用于唤醒第三终端设备，则该网络设备发送该信标帧。
可选地，该第三终端设备可以为该第一终端设备，该第二唤醒帧可以为该第一唤醒帧，即若网络设备确定在第一时间段内存在第一唤醒帧，则该网络设备发送该唤醒帧，代替发送该信标帧，若该网络设备确定在第一时间段内不存在第一唤醒帧，则该网络设备发送该信标帧，本申请实施例对此不作限定。
作为一个可选实施例，该网络设备可以在第一时间段内发送该信标帧，或者可以在该第一时间段的结束时刻发送该信标帧，本申请实施例对此不作限定。
本申请实施例提供的传输数据的方法，网络设备确定在该第一时间段内，不存在待发送的第二唤醒帧时，该网络设备发送该信标帧，保证了终端设备在每个信标帧的周期，都能够接收到信标帧。
可选地，所述网络设备可以通过多个频域信道与工作在每个所述频域信道上的终端设备通信，若所述第一唤醒帧是在第一频域信道上发送的，所述多个频域信道包括所述第一频域信道，则当所述网络设备确定在所述第一时间段内，不存在待发送的第二唤醒帧时，在所述网络设备在所述第一频域信道上发送所述第一唤醒帧的同时，所述网络设备在所述第二频域信道上发送所述信标帧，其中，所述第二唤醒帧用于唤醒第三终端设备，所述第三终端设备工作在第二频域信道上，所述多个频域信道包括所述第二频域信道，且所述第二频域信道与所述第一频域信道不同。
应理解，网络设备可以在多个频域信道与工作在每个频域信道上的终端设备通信，WUR系统通常工作在窄带上，以达到省电的效果，而网络设备在发送唤醒帧的最开始的部分需要有一个20MHz的前导序列，这样以来，一旦网络设备在该多个频域信道中一个频域信道上发送唤醒帧，其他频域信道上即使不发送唤醒帧，也不会用于发送其他数据，即会处于闲置不用的状态。
本申请实施例提供的数据传输的方法，网络设备确定在第一时间段内，存在待在第一频域信道上发送的第一唤醒帧，且不存在待在第二频域信道上发送的第二唤醒帧的时候，在网络设备在该第一频域信道上发送该第一唤醒帧的同时，该网络设备在第二频域信道上发送信标帧，能够充分利用频域带宽，提高系统资源的利用率。
可选地，若该网络设备确定在第一时间段内，在多个频域信道中的第一频域信道上不存在待发送的唤醒帧，则该网络设备可以在该第一频域信道上发送信标帧，以保证在该第一频域信道上工作的每个终端设备都能够侦听到信标帧本申请实施例对此不作限定。
可选地，若该网络设备确定在第一时间段内，在多个频域信道中每个频域信道上都不存在待发送的唤醒帧，则该网络设备可以在所有频域信道上广播信标帧，例如，该网络设备可以同时在所有频域信道上广播信标帧，本申请实施例对此不作限定。
可选地，本申请实施例还提供了一种数据传输的方法，该方法包括：若网络设备确定在第一时间段内，预先获取到的传输机会的时长还有剩余，则该网络设备可以在该传输机会剩余的时长内，发送该信标帧，其中，该第一时间段包括预设的信标帧的发送时刻，该信标帧是周期性发送的，该第一时间段的时长大于或等于0，且小于该信标帧的发送周期。
应理解，传输机会TXOP是WLAN系统中的一个时间段，网络设备通过竞争获得信道的发送权，该发送权使得网络设备获得在预留的时间段内，向一个移动终端发送数据的权力。在该预留的时间段内，其他的移动终端会保持静默，因此，其它终端设备不会对该移动终端带来干扰或与该移动终端产生传输碰撞。其中，TXOP时间段通常会有一个时间长度的上限，例如为3ms。
本申请实施例提供的传输信标帧的方法，网络设备通过TXOP获取到的预留时间段的时长还有剩余的时，该网络设备可以在该TXOP剩余的时长内，向该终端设备发送信标帧，从而避免了在预设的信标帧的发送时刻重新通过信道竞争，获取到数据发送权，降低了信道竞争的开销，并且减少了传输碰撞的概率。
图3示出了本申请实施例提供的数据传输的方法300的示意性流程图，该方法300例如可以应用于如图1所示的无线通信系统，应理解，该方法300可以由终端设备执行，该终端设备例如可以为站点。
S310，终端设备在第一时间段内侦听网络设备发送的信标帧，所述第一时间段包括预设的所述信标帧的第一接收时刻，所述信标帧是周期性发送的，所述第一时间段的时长大于或等于0，且小于所述信标帧的发送周期，其中，当该第一时间段的时长等于0时，该第一时间段为该第一接收时刻。
S320，若所述终端设备在所述第一时间段内侦听到所述网络设备发送的唤醒帧，所述唤醒帧用于唤醒其他终端设备，则所述终端设备将所述唤醒帧作为所述信标帧。
可选地，本申请实施例中的第一时间段可以为至少一个时间段，第一接收时刻可以为至少一个接收时刻。
作为一个可选实施例，该第一接收时刻可以为信标帧任意一个接收周期的接收时刻，该第一时间段可以为至少包含该第一接收时刻的时间段，且该第一时间段的时长小于接收周期。
作为另一个可选实施例，该第一接收时刻可以为多个接收时刻时，该多个接收时刻可以为多个连续周期的接收时刻，或多个非连续周期的接收时刻，该多个时间段可以理解为与该多个接收时刻中每个接收时刻一一对应的时间段，该多个唤醒帧可以理解为每个时间段内待接收的唤醒帧，本申请实施例对此不作限定。
可选地，该多个接收时刻中每个接收时刻对应的时间段的时长可以相等也可以不等，本申请实施例对此不作限定。
应理解，接收时刻对应的时间段，可以理解为至少包含该接收时刻的时间段，即该时间段的时长大于或等于0。
还应理解，该时间段的时长等于0时，该时间段即为该接收时刻；该时间段的时长大 于0时，该时间段的起始时刻和结束时刻之间的时长包含该接收时刻，或者该时间段的起始时刻为该接收时刻，或者该时间段的结束时刻为该接收时刻。
可选地，本申请实施例中的信标帧可以以单播、组播或者广播的形式接收，本申请实施例对此不作限定。
可选地，该唤醒帧可以携带同步信息，该同步信息用于时间同步或频率同步。
作为一个可选实施例，该唤醒帧可以携带同步信息字段，该同步信息字段用于指示网络设备的时域信息或频率信息，以便于终端设备根据该同步信息字段与该网络设备进行时间同步或频率同步。
可选地，在S310之前，该终端设备可以接收该网络设备发送的侦听通知消息，该侦听通知消息用于通知该终端设备在该第一时间段内侦听该信标帧，该终端设备可以根据该侦听通知消息，在该第一时间段内侦听该网络设备发送的该信标帧。
可选地，该唤醒帧携带同步信息，该同步信息用于时间同步或频率同步。
可选地，若终端设备在第一时间段内侦听到网络设备发送的多个唤醒帧，则该终端设备可以根据与网络设备的预先约定，将其中任一个作为信标帧，例如，可以将信道质量最好的唤醒帧作为信标帧，或者可以将接收到的第一个唤醒帧作为信标帧，本申请实施例对此不作限定。
本申请实施例提供的数据传输的方法，若该终端设备在该第一时间段内侦听到该网络设备向其他终端设备发送的唤醒帧，则该终端设备将该唤醒帧作为该信标帧，能够降低信标帧的开销。
另外，若终端设备在信标帧的每个接收时刻对应的时间段，都将接收到的唤醒帧作为信标帧，那么在降低信标帧的开销的同时，还可能保证终端设备在每个信标帧的周期内获得信标帧，使得终端设备的WUR系统能够进行周期性睡眠，从而能够进一步降低终端设备的能耗。
可选地，若终端设备在第一时间段内侦听到网络设备发送的唤醒帧，则该终端设备将该唤醒帧作为信标帧，根据该唤醒帧与网络设备进行同步；若终端设备在该第一时间段内侦听到网络设备发送的信标帧，则该终端设备根据该信标帧与网络设备进行同步。
可选地，本申请实施例还提供了一种数据传输的方法，该方法包括：终端设备确定在第一时间段内，网络设备预先分配的传输机会的时长还有剩余，该第一时间段包括预设的信标帧的发送时刻，该信标帧是周期性发送的，该第一时间段的时长大于或等于0，且小于该信标帧的发送周期；该终端设备在该传输机会剩余的时长内，接收该信标帧。
本申请实施例提供的传输信标帧的方法，终端设备在网络设备获取到的TXOP预留时间段剩余的时长内，接收网络设备发送的信标帧，减少了终端设备传输碰撞的概率。
上文中结合图1至图3，详细描述了根据本申请实施例的数据传输的方法，下面将结合图4至图7，详细描述根据本申请实施例的数据传输的装置。
图4是本申请实施例提供的数据传输的装置400的示意性框图，该装置400例如可以为如图1中所示的网络设备。该装置400包括：
确定单元410，用于确定在第一时间段内，存在待发送的第一唤醒帧，所述第一唤醒帧用于唤醒第一终端设备，所述第一时间段包括预设的信标帧的第一发送时刻，所述信标帧是周期性发送的，所述第一时间段的时长大于或等于0，且小于所述信标帧的发送周期， 其中，当所述第一时间段的时长等于0时，所述第一时间段为所述第一发送时刻；
通信单元420，用于发送所述确定单元410确定的所述第一唤醒帧，以代替发送所述信标帧。
可选地，所述第一唤醒帧携带同步信息，所述同步信息用于时间同步或频率同步。
可选地，所述通信单元具体用于以第一发送速率发送所述第一唤醒帧，所述第一发送速率小于预设的速率阈值。
可选地，所述通信单元具体用于在发送所述第一唤醒帧之前，向第二终端设备发送侦听通知消息，所述侦听通知消息用于指示所述第二终端设备在所述第一时间段内侦听所述信标帧。
可选地，所述网络设备通过多个频域信道与工作在每个所述频域信道上的终端设备通信，所述第一唤醒帧是在第一频域信道上发送的，所述多个频域信道包括所述第一频域信道；所述确定单元还用于确定在所述第一时间段内，不存在待发送的第二唤醒帧，所述第二唤醒帧用于唤醒第三终端设备，所述第三终端设备工作在第二频域信道上，所述多个频域信道包括所述第二频域信道，且所述第二频域信道与所述第一频域信道不同；所述通信单元还用于在在所述第一频域信道上发送所述第一唤醒帧的同时，在所述第二频域信道上发送所述信标帧。
在一个可选例子中，本领域技术人员可以理解，装置400可以具体为上述方法实施例中的网络设备，装置400可以用于执行上述方法实施例中与网络设备对应的各个流程和/或步骤，为避免重复，在此不再赘述。
应理解，这里的装置400可以以功能单元的形式体现。这里的术语“单元”可以指应用特有集成电路(application specific integrated circuit，ASIC)、电子电路、用于执行一个或多个软件或固件程序的处理器(例如共享处理器、专有处理器或组处理器等)和存储器、合并逻辑电路和/或其它支持所描述的功能的合适组件。
图5示出了本申请实施例提供的数据传输的装置500。该装置500例如可以为如图1中所示的终端设备。该装置500包括：
通信单元510，用于在第一时间段内侦听网络设备发送的信标帧，所述第一时间段包括预设的所述信标帧的第一接收时刻，所述信标帧是周期性发送的，所述第一时间段的时长大于或等于0，且小于所述信标帧的接收周期，其中，当所述第一时间段的时长等于0时，所述第一时间段为所述第一发送时刻；
处理单元520，用于若在所述第一时间段内所述通信单元510侦听到所述网络设备发送的唤醒帧，所述唤醒帧用于唤醒其他终端设备，则将所述唤醒帧作为所述信标帧。
可选地，所述通信单元还用于：在第一时间段内侦听网络设备发送的信标帧之前，接收所述网络设备发送的侦听通知消息，所述侦听通知消息用于通知所述终端设备在所述第一时间段内侦听所述信标帧；根据所述侦听通知消息，在所述第一时间段内侦听所述信标帧。
可选地，所述唤醒帧携带同步信息，所述同步信息用于时间同步或频率同步。
在一个可选例子中，本领域技术人员可以理解，装置500可以具体为上述方法实施例中的终端设备，装置500可以用于执行上述方法实施例中与终端设备对应的各个流程和/或步骤，为避免重复，在此不再赘述。
应理解，这里的装置500可以以功能单元的形式体现。这里的术语“单元”可以指应用特有集成电路(ASIC)、电子电路、用于执行一个或多个软件或固件程序的处理器(例如共享处理器、专有处理器或组处理器等)和存储器、合并逻辑电路和/或其它支持所描述的功能的合适组件。
图6示出了本申请实施例的传输数据的装置600的示意性框图。如图6所示，该装置600包括处理器610和收发器620。
处理器610，用于确定在第一时间段内，存在待发送的第一唤醒帧，所述第一唤醒帧用于唤醒第一终端设备，所述第一时间段包括预设的信标帧的第一发送时刻，所述信标帧是周期性发送的，所述第一时间段的时长大于或等于0，且小于所述信标帧的发送周期，其中，当所述第一时间段的时长等于0时，所述第一时间段为所述第一发送时刻。
收发器620，用于发送所述确定单元410确定的所述第一唤醒帧，以代替发送所述信标帧。
可选地，装置600还可以包括存储器，该存储器可以包括只读存储器和随机存取存储器，并向处理器提供指令和数据。存储器的一部分还可以包括非易失性随机存取存储器。例如，存储器还可以存储设备类型的信息。该处理器610可以用于执行存储器中存储的指令，并且该处理器执行该指令时，该处理器可以执行上述方法实施例中与网络设备对应的各个步骤。
应理解，在本申请实施例中，该处理器可以是中央处理单元(central processing unit，CPU)，该处理器还可以是其他通用处理器、数字信号处理器(digital signal processing，DSP)、专用集成电路ASIC、现成可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
图7示出了本申请实施例的数据传输的装置700的示意性框图。如图7所示，该装置700包括处理器710和收发器720。
收发器720，用于在第一时间段内侦听网络设备发送的信标帧，所述第一时间段包括预设的所述信标帧的第一接收时刻，所述信标帧是周期性发送的，所述第一时间段的时长大于或等于0，且小于所述信标帧的接收周期，其中，当所述第一时间段的时长等于0时，所述第一时间段为所述第一发送时刻。
处理器710，用于若在所述第一时间段内所述通信单元510侦听到所述网络设备发送的唤醒帧，所述唤醒帧用于唤醒其他终端设备，则将所述唤醒帧作为所述信标帧。
可选地，装置700还可以包括存储器，该存储器可以包括只读存储器和随机存取存储器，并向处理器提供指令和数据。存储器的一部分还可以包括非易失性随机存取存储器。例如，存储器还可以存储设备类型的信息。该处理器710可以用于执行存储器中存储的指令，并且该处理器执行该指令时，该处理器可以执行上述方法实施例中与终端设备对应的各个步骤。
应理解，在本申请实施例中，处理器可以是中央处理单元(CPU)，处理器还可以是其他通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
在实现过程中，上述方法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。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处理器执行完成，或者用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，处理器执行存储器中的指令，结合其硬件完成上述方法的步骤。为避免重复，这里不再详细描述。
应理解，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，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
本领域普通技术人员可以意识到，结合本文中所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。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算 机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，数字视频光盘(digital video disc，DVD))、或者半导体介质(例如固态硬盘(solid state disk，SSD))等。
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 (16)

  1. 一种数据传输的方法，其特征在于，包括：
    网络设备确定在第一时间段内，存在待发送的第一唤醒帧，所述第一唤醒帧用于唤醒第一终端设备，所述第一时间段包括预设的信标帧的第一发送时刻，所述信标帧是周期性发送的，所述第一时间段的时长大于或等于0，且小于所述信标帧的发送周期，其中，当所述第一时间段的时长等于0时，所述第一时间段为所述第一发送时刻；
    所述网络设备发送所述第一唤醒帧，以代替发送所述信标帧。
  2. 根据权利要求1所述的方法，其特征在于，所述第一唤醒帧携带同步信息，所述同步信息用于时间同步或频率同步。
  3. 根据权利要求1或2所述的方法，其特征在于，所述网络设备发送所述第一唤醒帧，包括：
    所述网络设备以第一发送速率发送所述第一唤醒帧，所述第一发送速率小于预设的速率阈值。
  4. 根据权利要求1至3中任一项所述的方法，其特征在于，在所述网络设备发送所述第一唤醒帧之前，所述方法还包括：
    所述网络设备向第二终端设备发送侦听通知消息，所述侦听通知消息用于指示所述第二终端设备在所述第一时间段内侦听所述信标帧。
  5. 根据权利要求1至4中任一项所述的方法，其特征在于，所述网络设备通过多个频域信道与工作在每个所述频域信道上的终端设备通信，所述第一唤醒帧是在第一频域信道上发送的，所述多个频域信道包括所述第一频域信道，所述方法还包括：
    所述网络设备确定在所述第一时间段内，不存在待发送的第二唤醒帧，所述第二唤醒帧用于唤醒第三终端设备，所述第三终端设备工作在第二频域信道上，所述多个频域信道包括所述第二频域信道，且所述第二频域信道与所述第一频域信道不同；
    在所述网络设备在所述第一频域信道上发送所述第一唤醒帧的同时，所述网络设备在所述第二频域信道上发送所述信标帧。
  6. 一种数据传输的方法，其特征在于，包括：
    终端设备在第一时间段内侦听网络设备发送的信标帧，所述第一时间段包括预设的所述信标帧的第一接收时刻，所述信标帧是周期性发送的，所述第一时间段的时长大于或等于0，且小于所述信标帧的接收周期，其中，当所述第一时间段的时长等于0时，所述第一时间段为所述第一发送时刻；
    若所述终端设备在所述第一时间段内侦听到所述网络设备发送的唤醒帧，所述唤醒帧用于唤醒其他终端设备，则所述终端设备将所述唤醒帧作为所述信标帧。
  7. 根据权利要求6所述的方法，其特征在于，在所述终端设备在第一时间段内侦听网络设备发送的信标帧之前，所述方法还包括：
    所述终端设备接收所述网络设备发送的侦听通知消息，所述侦听通知消息用于通知所述终端设备在所述第一时间段内侦听所述信标帧；
    所述终端设备在第一时间段内侦听网络设备发送的信标帧，包括：
    所述终端设备根据所述侦听通知消息，在所述第一时间段内侦听所述信标帧。
  8. 根据权利要求6或7所述的方法，其特征在于，所述唤醒帧携带同步信息，所述同步信息用于时间同步或频率同步。
  9. 一种数据传输的装置，其特征在于，包括：
    确定单元，用于确定在第一时间段内，存在待发送的第一唤醒帧，所述第一唤醒帧用于唤醒第一终端设备，所述第一时间段包括预设的信标帧的第一发送时刻，所述信标帧是周期性发送的，所述第一时间段的时长大于或等于0，且小于所述信标帧的发送周期，其中，当所述第一时间段的时长等于0时，所述第一时间段为所述第一发送时刻；
    通信单元，用于发送所述确定单元确定的所述第一唤醒帧，以代替发送所述信标帧。
  10. 根据权利要求9所述的装置，其特征在于，所述第一唤醒帧携带同步信息，所述同步信息用于时间同步或频率同步。
  11. 根据权利要求9或10所述的装置，其特征在于，所述通信单元具体用于以第一发送速率发送所述第一唤醒帧，所述第一发送速率小于预设的速率阈值。
  12. 根据权利要求9至11中任一项所述的装置，其特征在于，所述通信单元具体用于在发送所述第一唤醒帧之前，向第二终端设备发送侦听通知消息，所述侦听通知消息用于指示所述第二终端设备在所述第一时间段内侦听所述信标帧。
  13. 根据权利要求9至12中任一项所述的装置，其特征在于，所述网络设备通过多个频域信道与工作在每个所述频域信道上的终端设备通信，所述第一唤醒帧是在第一频域信道上发送的，所述多个频域信道包括所述第一频域信道；
    所述确定单元还用于确定在所述第一时间段内，不存在待发送的第二唤醒帧，所述第二唤醒帧用于唤醒第三终端设备，所述第三终端设备工作在第二频域信道上，所述多个频域信道包括所述第二频域信道，且所述第二频域信道与所述第一频域信道不同；
    所述通信单元还用于在在所述第一频域信道上发送所述第一唤醒帧的同时，在所述第二频域信道上发送所述信标帧。
  14. 一种数据传输的装置，其特征在于，包括：
    通信单元，用于在第一时间段内侦听网络设备发送的信标帧，所述第一时间段包括预设的所述信标帧的第一接收时刻，所述信标帧是周期性发送的，所述第一时间段的时长大于或等于0，且小于所述信标帧的接收周期，其中，当所述第一时间段的时长等于0时，所述第一时间段为所述第一发送时刻；
    处理单元，用于若在所述第一时间段内所述通信单元侦听到所述网络设备发送的唤醒帧，所述唤醒帧用于唤醒其他终端设备，则将所述唤醒帧作为所述信标帧。
  15. 根据权利要求14所述的装置，其特征在于，所述通信单元还用于：
    在第一时间段内侦听网络设备发送的信标帧之前，接收所述网络设备发送的侦听通知消息，所述侦听通知消息用于通知所述终端设备在所述第一时间段内侦听所述信标帧；
    根据所述侦听通知消息，在所述第一时间段内侦听所述信标帧。
  16. 根据权利要求14或15所述的装置，其特征在于，所述唤醒帧携带同步信息，所述同步信息用于时间同步或频率同步。
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