WO2018095197A1 - 数据传输方法和装置 - Google Patents

数据传输方法和装置 Download PDF

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Publication number
WO2018095197A1
WO2018095197A1 PCT/CN2017/107957 CN2017107957W WO2018095197A1 WO 2018095197 A1 WO2018095197 A1 WO 2018095197A1 CN 2017107957 W CN2017107957 W CN 2017107957W WO 2018095197 A1 WO2018095197 A1 WO 2018095197A1
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Prior art keywords
network device
wakeup
wake
frame
request
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PCT/CN2017/107957
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English (en)
French (fr)
Inventor
于健
李云波
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华为技术有限公司
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Publication of WO2018095197A1 publication Critical patent/WO2018095197A1/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
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
    • 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
    • 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 communication technologies, and in particular, to a data transmission method and apparatus. .
  • WiFi Wireless Fidelity
  • a Wake Up Receiver (WUR) and a Main Radio (MR) are provided in a network device, wherein the power consumption of the WUR is much lower than that of the MR, which is approximately MR. 1%.
  • the MR enters the sleep state and the WUR is in the working state.
  • the two network devices that are paired need to perform data transmission
  • the two network devices that are paired are: station 1 (Station 1, abbreviated as STA1) and station 2 (Station 2, abbreviated as STA2), where STA1 to STA2
  • the WUR sends a Wake up packet (WUP), where the WUP carries a wake-up frame, so that the WUR of STA2 wakes up its MR, thereby implementing data transmission between STA1 and STA2.
  • WUP Wake up packet
  • the present application provides a data transmission method and apparatus to solve the problem that two network devices cannot perform data transmission when a certain network device does not have the capability of transmitting a WUP in the prior art.
  • the application provides a data transmission method, where an application scenario includes at least three network devices, where the first network device can communicate with the second network device and the third network, and the first network device has the first The condition that the third network device sends the WUP, the second network device and the third network device are paired network devices, the second network device and the third network device are to perform data transmission, and the second network device does not have the condition for sending the WUP.
  • the method includes: the second network device sends the wakeup request indication information to the first network device; after receiving the wakeup request indication information sent by the second network device, the first network device sends the wakeup request information to the WUR of the third network device, where The WUR of the three network devices wakes up its MR.
  • the second network device that does not have the WUP condition is sent to the WUR of the third network device by using the first network device that sends the WUP condition, so that the MR of the third network device is awake, so that the second network device is enabled. Data transmission with the third network device.
  • the application provides a data transmission method, including:
  • the second network device sends the wakeup request indication information to the first network device, where the first network device sends the wakeup request information to the WUR of the third network device, and the first network device sends the wakeup request information to the WUR of the third network device, requesting the first The WUR of the three network devices wakes up its own MR.
  • the second network device confirms that the MR of the third network device has been woken up by receiving the wakeup acknowledgement frame. That is, the second network device that does not have the WUP condition is sent to the WUR of the third network device by using the first network device that sends the WUP condition, so that the MR of the third network device is awake, so that the second network device is enabled. Data transmission with the third network device.
  • the application provides a data transmission method, including:
  • the second network device sends the wakeup request indication information to the first network device, where the first network device sends the wakeup request information to the WUR of the third network device, and the first network device sends the wakeup request information to the WUR of the third network device, where The network device sends wake-up request information to the WUR of the third network device, requesting the WUR of the third network device to wake up its own MR.
  • the WUR of the third network device wakes up its own MR. That is, the second network device that does not have the WUP condition is sent to the WUR of the third network device by using the first network device that sends the WUP condition, so that the MR of the third network device is awake, so that the second network device is enabled. Data transmission with the third network device.
  • the present application provides a data transmission apparatus, where the apparatus is deployed in a first network device, where the apparatus includes a receiving module and a sending module, where
  • the second network device sends the wakeup request indication information to the receiving module of the first network device; after the receiving module of the first network device receives the wakeup request indication information sent by the second network device, the sending module of the first network device sends the third module to the third network
  • the WUR of the device sends wakeup request information, and the WUR of the third network device wakes up its MR. That is, the second network device that does not have the WUP condition is sent to the WUR of the third network device by using the first network device that sends the WUP condition, so that the MR of the third network device is awake, so that the second network device is enabled. Data transmission with the third network device.
  • the present application provides a data transmission apparatus, where the apparatus is deployed in a second network device, including: the apparatus includes a sending module and a receiving module, where the sending module of the second network device sends a wakeup request indication to the first network device.
  • the information indicates that the first network device sends the wakeup request information to the WUR of the third network device, and the first network device sends the wakeup request information to the WUR of the third network device, requesting the WUR of the third network device to wake up its own MR.
  • the receiving module of the second network device confirms that the MR of the third network device has been woken up by receiving the wakeup acknowledgement frame.
  • the second network device that does not have the WUP condition is sent to the WUR of the third network device by using the first network device that sends the WUP condition, so that the MR of the third network device is awake, so that the second network device is enabled. Data transmission with the third network device.
  • the present application provides a data transmission apparatus, which is deployed in a third network device, where the apparatus includes a WUR and an MR, including:
  • the second network device sends the wakeup request indication information to the first network device, where the first network device sends the wakeup request information to the WUR of the third network device, and the first network device sends the wakeup request information to the WUR of the third network device, where The network device sends wake-up request information to the WUR of the third network device, requesting the WUR of the third network device to wake up its own MR.
  • the WUR of the third network device wakes up its own MR.
  • the second network device that is configured to send the WUP condition sends the wake-up request information to the WUR of the third network device by using the first network device that sends the WUP condition, thereby implementing the wake-up of the MR of the third network device, so that the second network device and the third device Network devices perform data transmission.
  • the present application provides a data transmission apparatus, where the apparatus is deployed in a first network device, where the apparatus includes a receiver and a transmitter, where
  • the second network device sends the wakeup request indication information to the receiver of the first network device; after the receiver of the first network device receives the wakeup request indication information sent by the second network device, the transmitter of the first network device sends the third network to the third network
  • the WUR of the device sends wakeup request information, and the WUR of the third network device wakes up its MR. That is, the second network device that does not have the WUP condition is sent to the WUR of the third network device by using the first network device that sends the WUP condition, so that the MR of the third network device is awake, so that the second network device is enabled. Data transmission with the third network device.
  • the present application provides a data transmission apparatus, where the apparatus is deployed in a second network device, including: the apparatus includes a transmitter and a receiver, and the transmitter of the second network device sends a wakeup request indication to the first network device.
  • the information indicates that the first network device sends the wakeup request information to the WUR of the third network device, and the first network device sends the wakeup request information to the WUR of the third network device, requesting the WUR of the third network device to wake up its own MR.
  • the receiver of the second network device confirms that the MR of the third network device has been woken up by receiving the wakeup acknowledgement frame.
  • the second network device that does not have the WUP condition is sent to the WUR of the third network device by using the first network device that sends the WUP condition, so that the MR of the third network device is awake, so that the second network device is enabled. Data transmission with the third network device.
  • FIG. 1 is a schematic diagram of a scenario of the present application.
  • FIG. 2 is a schematic diagram of a data transmission method according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a frame format of a WUH frame according to the present application.
  • FIG. 4 is a schematic diagram of a data transmission method according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a data transmission method according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a data transmission method according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a data transmission method according to another embodiment of the present application.
  • FIG. 8 is a schematic diagram of a data transmission method according to still another embodiment of the present application.
  • FIG. 9 is a schematic diagram of a frame structure of a HE-A-control according to the present application.
  • FIG. 10 is a schematic diagram of a data transmission method according to still another embodiment of the present application.
  • FIG. 11 is a schematic diagram of TDLS transmission according to the present application.
  • FIG. 12 is a schematic diagram of a possible frame structure of a WUP of the present application.
  • FIG. 13 is a schematic diagram of STA1 and STA2 mutually agreeing to open window time of WUR according to the present application;
  • Figure 14 is a schematic diagram of another scenario of the present application.
  • FIG. 15 is a schematic diagram of a data transmission method according to still another embodiment of the present application.
  • 16 is a schematic structural diagram of a data transmission apparatus according to an embodiment of the present application.
  • FIG. 17 is a schematic structural diagram of a data transmission apparatus according to another embodiment of the present application.
  • FIG. 18 is a schematic structural diagram of a data transmission apparatus according to still another embodiment of the present application.
  • FIG. 19 is a schematic structural diagram of a data transmission apparatus according to an embodiment of the present application.
  • FIG. 20 is a schematic structural diagram of a data transmission apparatus according to another embodiment of the present application.
  • FIG. 21 is a schematic structural diagram of a data transmission apparatus according to still another embodiment of the present application.
  • the scenario includes three network devices, where the first network device can communicate with the second network device and the third network, and the first network device has a The condition that the third network device sends the WUP, the second network device and the third network device are paired network devices, the second network device and the third network device are to perform data transmission, and the second network device does not have the condition for sending the WUP.
  • the first network device is further configured to send a WUP to the second network device.
  • the description is made by taking the first network device as the AP, the second network device as the STA1, and the third network device as the STA2, where STA1 and STA2 are multiple STAs associated with the AP. Two of the STAs that are paired.
  • FIG. 2 is a schematic diagram of a data transmission method according to an embodiment of the present application. As shown in FIG. 2, the method in this embodiment is as follows:
  • S201 STA1 sends wakeup request indication information to the AP.
  • the wakeup request indication information is used to indicate that the wakeup request information is sent to the WUR of the STA2.
  • STA1 sends a Wake Up Help (WUH) frame to the AP.
  • the WUH frame is used to instruct the AP to send a WUP to the WUR of STA2.
  • the WUP includes a wake-up frame, so that the WUR of STA2 wakes up the MR of STA2.
  • FIG. 3 is a schematic diagram of a frame format of a WUH frame according to the present application.
  • the WUH frame includes a frame type indication, a sending address, a destination address, and a frame check sequence.
  • the frame type indication is used to indicate that the frame is a WUH frame.
  • the sending address is used to indicate the STA that sends the frame. In this embodiment, it is STA1, and the destination address is used to indicate the destination STA that needs to be assisted by the AP. In this embodiment, it is STA2.
  • the sending address and the destination address may be an association ID of the STA, or may be a medium access control (MAC) address of the STA.
  • MAC medium access control
  • the AP After receiving the WUH frame sent by STA1, the AP performs S203.
  • S203 The AP sends wakeup request information to the WUR of STA2.
  • the AP sends a WUP to the WUR of the STA2, and the WUR of the STA2 wakes up the MR after receiving the WUP.
  • S205 STA1 receives the wakeup acknowledgement frame.
  • the wakeup acknowledgement frame is used to indicate that the MR of the STA2 has been woken up.
  • the wakeup acknowledgement frame may be an acknowledgement frame (Acknowledge, ACK for short), a power save poll (PS-poll), or other frame capable of indicating that the MR has been woken up.
  • the manner in which STA1 receives the wake-up acknowledgement frame includes but is not limited to the following possible implementation manners:
  • S2051a STA2 sends a wakeup acknowledgement frame to the AP.
  • the AP By sending a wake-up acknowledgment frame to the AP, the AP learns that the MR of the STA2 has awake, and prevents the AP from performing an unnecessary retransmission of the WUP.
  • S2052a The AP sends a wakeup acknowledgement frame to STA1.
  • S205b STA2 sends a wakeup acknowledgement frame to STA1.
  • S205c STA2 sends a multi-user wake-up acknowledgement frame.
  • the multi-user wake-up confirmation frame may be a broadcast frame.
  • the multi-user wake-up acknowledgement frame includes the identifiers of the AP and the STA1, and through one MAC frame, simultaneously informs the AP and the STA1 that the MR of the STA2 has been woken up. Thereby, the overhead caused by the physical layer preamble and the MAC frame header is reduced.
  • STA2 needs to know the identification information of STA1 in order to send a wake-up acknowledgement frame to STA1.
  • the identifier information of STA1 may be address information or other information capable of identifying STA1.
  • the STA2 can be learned from the WUP sent by the AP to the STA2, including but not limited to the following:
  • the WUP carries the identifier information of the STA1, for example, the source address is carried in the WUP, and the source address is the address of STA1.
  • FIG. 12 is a schematic diagram of a possible frame structure of the WUP.
  • the WUP structure includes one or more of a frame type indication, a source address (SA), and an action indication (Action/Behavior Indication).
  • the frame type indication is used to indicate the type of the frame and its use, and is used to indicate an MR that helps one STA in the DLS/TDLS pair to wake up another STA.
  • the source address is used to indicate the sender of the request of the WUP.
  • the sender of the WUP is an AP, and the sender of the request is STA1. Therefore, the source address is the address of STA1.
  • STA2 determines that the request sender is STA1 according to the source address.
  • the behavior indication is used to indicate the behavior of STA2 after MR wakeup. For example: STA2 can be instructed to reply to the wake-up acknowledgement frame immediately after waking up. It is also possible to instruct STA2 to wait for receiving Beacon after waking up. It is also possible to instruct STA2 to send a wakeup indication to STA1 after waking up. It is also possible to instruct STA2 to perform other custom behaviors after waking up, and this application is not limited thereto.
  • Another possible implementation manner is different from the previous possible implementation manner, in which the source address is not carried in the WUP, and the STA2 learns that the frame is used to indicate one STA in the DLS/TDLS pair according to the frame type indication in the WUP. To wake up the MR of another STA, and STA2 knows in advance the identification information of another STA (ie, STA1) with which DLS/TDLS pairing is performed.
  • S207 STA1 and STA2 perform data transmission.
  • the STA1 sends the awake request indication information to the AP to request the AP to send the awake request information to the WUR of the STA2, so that the WUP of the STA2 wakes up the MR of the STA2, and implements data transmission between the STA1 and the STA2.
  • STA2 does not need to frequently listen to beacon frames to reduce power consumption.
  • STA1 wakes up STA2 through the AP in time, which reduces the delay caused by waiting for STA2 to sleep.
  • a possible implementation manner is as follows: STA1 retransmits the WUH to the AP to request the AP to re-transmit the WUP to the WUR of the STA2 to wake up the STA2. MR.
  • Another possible implementation manner STA1 enters a sleep state, and after the MR of the STA2 wakes up, the AP sends a wakeup request message to the WUR of the STA1 to wake up the MR of the STA1.
  • the manner in which the STA1 determines that the MR of the STA2 is failed is not limited to the following: a possible implementation manner: the AP does not receive the wakeup acknowledgement frame sent by the STA2 within the preset time period, and sends the wakeup failure indication information to the STA1. Thus, STA1 is determined to fail to wake up the MR2 of STA2.
  • FIG. 7 is a schematic diagram of a data transmission method according to another embodiment of the present application. As shown in FIG. 7, the method in this embodiment is as follows:
  • S701 STA1 sends a MAC frame to the AP.
  • the MAC frame may be any one of a data frame, a management frame, or a control frame.
  • the MAC frame includes wakeup request indication information and information that needs to be forwarded to STA2, and the wakeup request indication information is used to instruct the AP to send a WUP to the WUR of STA2 to wake up the MR of STA2.
  • STA1 sends a MAC frame to the AP, and the MAC frame contains part or all of the data that STA1 wants to send to STA2.
  • STA1 sets the destination address of the MAC frame to STA2 to instruct the AP to send a WUP to the WUR of STA2 to wake up the MR of STA2.
  • the AP performs S703.
  • S703 The AP sends an acknowledgement frame to STA1.
  • the acknowledgement frame is used to indicate that the AP has correctly received the MAC frame sent by STA1.
  • S705 The AP sends a WUP to the WUR of STA2.
  • STA2 sends a wakeup acknowledgement frame to the AP.
  • the wakeup acknowledgement frame is used to indicate that the MR of STA2 has woken up.
  • S711 The AP sends, to the STA2, information that needs to be forwarded to the STA2 in the MAC frame.
  • S713 STA2 sends an acknowledgement frame to the AP.
  • the acknowledgement frame is used to indicate that the STA2 has correctly received the information that needs to be forwarded to the STA2 in the MAC frame sent by the AP.
  • S715 The AP sends a data transmission completion indication message to the STA2.
  • the data transmission completion indication information is used to indicate that the data sent by the AP to the STA2 has been transmitted.
  • S717 The AP or STA2 sends a wakeup acknowledgement frame to STA1.
  • the wakeup acknowledgement frame is used to indicate that the MR of the STA2 has been woken up.
  • S719 STA1 and STA2 perform data transmission.
  • the STA sends a MAC frame to the AP, and the MAC frame carries the awake request indication information to request the AP to send the WUP to the WUR of the STA2, so that the WUP of the STA2 wakes up the MR of the STA2, so that the STA2 does not need to frequently listen to the beacon (Beacon ) frames to reduce power consumption.
  • STA1 is in a state where STA2 sleeps for a long time. The AP wakes up STA2 in time, which reduces the delay caused by waiting for STA2 to sleep.
  • a possible implementation manner is as follows: STA1 retransmits the MAC frame to the AP to request the AP to re-transmit the WUP to the WUR of STA2 to wake up STA2.
  • Another possible implementation manner is as follows: STA1 enters a sleep state, and after the MR of STA2 wakes up, STA1 is woken up by the AP.
  • FIG. 8 is a schematic diagram of a data transmission method according to still another embodiment of the present application. As shown in FIG. 8, the method in this embodiment is as follows:
  • S801 STA1 sends a MAC frame to the AP.
  • the MAC frame may be any one of a data frame, a management frame, or a control frame.
  • the TDLS tear down frame or the TDLS peer traffic indication frame is cancelled.
  • the former is used for STA1 and STA2 to cancel the TDLS link; the latter is used by STA1 to report to STA2 that it has a transmission service requirement.
  • the MAC frame includes the awake request indication information and the information that needs to be forwarded to the STA2.
  • the awake request indication information is used to instruct the AP to send the WUP to the WUR of the STA2, and carries the information in the MAC frame that needs to be forwarded to the STA2 in the WUP. That is, the AP can carry the information that needs to be forwarded to STA2 in the MAC through the WUP sent to the WUR of STA2.
  • the AP performs S803.
  • S803 The AP sends an acknowledgement frame to STA1.
  • the acknowledgement frame is used to indicate that the AP has correctly received the MAC frame sent by STA1.
  • S805 The AP sends a WUP to the WUR of STA2.
  • the WUP carries information that needs to be forwarded to STA2 in the MAC frame.
  • steps S803 and S805 are not limited.
  • the STA1 sends a MAC frame to the AP, where the MAC frame includes the awake request indication information and the information that needs to be forwarded to the STA2.
  • the awake request indication information is used to instruct the AP to send the WUP to the WUR of the STA2, and carries the MAC in the WUP.
  • the information that needs to be forwarded to the STA2 in the frame the AP sends a WUP to the WUR of the STA2, and the WUP carries the information that needs to be forwarded to the STA2 in the MAC frame, so that the AP forwards the STA1 data to the STA2 through the WUP without waking up the MR of the STA2.
  • the WUR of the STA2 receives the WUP and includes the information that needs to be forwarded to the STA2 in the MAC frame sent by the STA1, and can actively wake up the MR of the STA2, and send a wakeup confirmation frame to the STA1.
  • the wake-up request indication information may be carried in the MAC frame header of the corresponding MAC frame, for example, carried by High Throughput Control (HTC), and passed through High Efficient Aggregated Control (HE-A-control).
  • HTC High Throughput Control
  • HE-A-control High Efficient Aggregated Control
  • the control ID in the variant indicates the indication information.
  • the frame structure of the HE-A-control is as shown in FIG.
  • FIG. 10 is a schematic diagram of a data transmission method according to still another embodiment of the present application. As shown in FIG. 10, the method in this embodiment is as follows:
  • S1001 STA1 sends an aggregated frame to the AP.
  • the aggregated frame includes: a first type of frame and a second type of frame, where the first type of frame includes wakeup request indication information, and the second type of frame includes information that needs to be forwarded to the third network device.
  • the first type of frame may be a WUH frame, and is used to instruct the AP to send a WUP to the WUR of the STA2 to wake up the MR of the STA2.
  • the second type of frame may be any one of a data frame, a management frame, or a control frame.
  • the AP performs S1003.
  • S1003 The AP sends an acknowledgement frame to STA1.
  • the acknowledgement frame is Block Acknowledge (abbreviation: BA), and the acknowledgement frame is used to indicate that the AP has correctly received the aggregated frame sent by STA1.
  • BA Block Acknowledge
  • S1005 The AP sends a WUP to the WUR of STA2.
  • steps S1003 and S1005 are not limited.
  • the STA1 sends an aggregated frame to the AP, where the aggregated frame includes the first type of frame and the second type of frame, where the first type of frame includes the wakeup request indication information, and the second type of frame includes the need to forward to the STA2.
  • the information indicates that the AP sends a WUP to the WUR of STA2 through the wakeup request indication information to wake up the MR of STA2.
  • STA2 does not need to frequently listen to beacon frames to reduce power consumption.
  • STA1 wakes up STA2 through the AP in time, which reduces the delay caused by waiting for STA2 to sleep.
  • the STA1 determines that the MR of the STA2 has awake. STA1 sends the partial information of the second type frame or the second type frame that is not successfully received to the STA2.
  • TDLS tunneled Direct Link Setup
  • FIG. 11 is a schematic diagram of the TDLS transmission of the present application.
  • STA1 and STA2 When two paired STAs (such as STA1 and STA2) perform TDLS transmission from the channel, they are out of control of the AP. For the WUR of STA1 and STA2, the switching state and the channel in which it is located may also be out of the control of the AP.
  • STA1 requests the AP to wake up STA2, it also needs to send the band (Band) or channel (Channel) where the WUR of STA2 is located to the AP.
  • the AP sends a WUP to the WUR of STA2 in the frequency band or channel in which the WUR of STA2 is located.
  • STA2 can send a wakeup acknowledgement frame through the primary channel or the temporary primary channel.
  • STA2 switches to the primary channel and sends a wakeup acknowledgement frame to the AP.
  • STA2 is in the same state.
  • a wakeup acknowledgement frame is sent on the temporary channel of STA1, and the AP switches to the temporary primary channel of STA2 and STA1, and receives the wakeup acknowledgement frame sent by STA2.
  • STA2 may send a wake-up acknowledgement frame through the primary channel or the temporary primary channel, where, in one possible case, STA2 switches to the primary channel, sends a wake-up acknowledgement frame to the AP, and the AP sends a wake-up acknowledgement frame to STA1 on the primary channel, and STA1 switches to The wake-up acknowledgement frame is received on the primary channel; in another possible case, STA2 transmits a wake-up acknowledgement frame on the temporary channel with STA1, and STA1 receives the wake-up acknowledgement frame sent by STA2 on the temporary primary channel.
  • the STA1 does not know the ON state of STA2's WUR and MR, and the AP knows the WUR of STA2 and When the MR is enabled, the AP receives the WUH frame sent by STA1 and processes it according to the following conditions:
  • a case If the MR of STA2 is in the on state, the AP directly sends a wakeup acknowledgement frame to STA1, and has informed the STA2 that the MR has awake.
  • the AP sends a wakeup failure indication to STA1.
  • STA1 is notified that the MR and/or WUR of STA2 is in the open window time, so that STA1 sends a WUH frame to the AP at the time point in the open window.
  • the wakeup acknowledgement frame or the wakeup failure indication can be directly fed back to the STA1, thereby avoiding unnecessary wakeup steps, reducing delay, and saving power consumption.
  • the STA1 before the STA1 sends the WUH to the AP or other MRs for requesting the AP to help wake up the STA2, it may first determine that the WUR of the STA2 is in an open state.
  • STA1 knows that the ON state of STA2's WUR includes but is not limited to the following possible implementations:
  • STA1 and STA2 mutually negotiate the window opening time of the WUR, as shown in FIG. 13:
  • S1301 STA1 sends a request frame to STA2 to establish a WUR open window time.
  • the request frame includes a first window interval for suggesting that the WUR open window time of STA2 is set to the first window interval.
  • STA1 can directly send a request frame to STA2 to establish a WUR open window time.
  • the STA1 may first send a request frame for establishing a WUR open window time to the AP, and the AP forwards the request frame to the STA2.
  • the application is not limited.
  • STA2 sends a response frame of WUR open window time to STA1.
  • the response frame is used to indicate whether the STA2 agrees to set the first window interval to the WUR open window time of STA2. If it does not agree, the second window interval is also carried in the response frame.
  • the first window interval is used to suggest that the WUR open window time of STA2 is set to the second window interval.
  • STA2 can directly send a response frame of WUR open window time to STA1. It can also be sent to the AP first, and the response frame is forwarded to STA1 through the AP.
  • the STA1 sends a determining frame of the WUR open window time to the STA2, and the feedback finally determines whether the WUR open window time is successfully established.
  • STA1 and STA2 inform each other of their WUR open window time.
  • STA1 sends STA1's WUR open window time directly to STA2.
  • STA1 sends the WUR open window time of STA1 to the AP, and the AP forwards the WUR open window time of STA1 to STA2.
  • STA2 directly sends STA2's WUR open window time to STA1.
  • STA2 sends the WUR open window time of STA2 to the AP, and the AP forwards the WUR open window time of STA2 to STA1.
  • the AP allocates the same WUR open window time to STA1 and STA2.
  • STA1 can know the WUR open window time of STA2 according to its SUR open window.
  • the WUR open window time of the STA2 is known in advance by the STA1, and it is determined whether the AP is required to wake up the MR of the STA2 according to the WUR open window time. Therefore, the WUR of the STA2 does not need to be always turned on, and only needs to be turned on in the WUR open window time. To further save power.
  • the STA1 after the STA1 sends the WUH to the AP, optionally, the STA1 enters a sleep state. Before receiving the wake-up acknowledgement frame sent by the STA2 or the AP, the AP sends a WUP to the STA1 to wake up the MR of the STA1. Thereby, power consumption is further saved.
  • a possible implementation manner is as follows: The AP sends a WUP to the STA1, and the WUP carries a wakeup failure indication, indicating that the MR of the STA2 is not awake. Another possible implementation manner is as follows: The AP sends a WUP to the STA1, and the WUP is used to wake up the MR of the STA1. The AP sends an awake failure indication to the MR of the STA1, indicating that the MR of the STA2 is not awake.
  • FIG. 14 is a schematic diagram of another scenario of the present application.
  • the first network device is used as the relay device
  • the second network device is the AP
  • the STA3 of the third network device is taken as an example.
  • FIG. 15 is a schematic diagram of a data transmission method according to still another embodiment of the present application.
  • S1501 The AP sends wakeup request indication information to the relay device.
  • the wakeup request indication information is used to instruct the relay device to send the wakeup request information to the WUR of the STA3.
  • S1502 The relay device sends wakeup request information to STA3.
  • the wakeup request information is used to request to wake up the MR of the STA3.
  • S1503 STA3 wakes up its MR.
  • S1504 The AP receives the wakeup acknowledgement frame.
  • the wakeup acknowledgement frame is used to indicate that the MR of the STA3 has woken up.
  • the wakeup acknowledgement frame may be an acknowledgement frame (Acknowledge, ACK for short), a power save poll (PS-poll), or other frame capable of indicating that the MR has been woken up.
  • the manner in which the AP receives the wake-up acknowledgement frame includes but is not limited to the following possible implementation manners:
  • S15051a STA3 sends a wakeup acknowledgement frame to the relay device.
  • the relay device By sending a wake-up acknowledgement frame to the relay device, so that the relay device knows that the MR of the STA3 has awake, the relay device is prevented from performing unnecessary re-transmission wake-up request information.
  • the relay device sends a wakeup acknowledgement frame to the AP.
  • S1505b STA3 sends a wakeup acknowledgement frame to the AP.
  • S1505c STA3 sends a multi-user wake-up acknowledgement frame.
  • the multi-user wake-up confirmation frame may be a broadcast frame.
  • the multi-user wake-up confirmation frame includes the identifiers of the APs and the relay devices, and through one MAC frame, simultaneously informs the AP and the relay device that the MR of the STA3 has been woken up. Thereby, the overhead caused by the physical layer preamble and the MAC frame header is reduced.
  • S1505 The AP communicates with STA3.
  • the communication between the AP and STA3 can be forwarded through the relay device.
  • the AP sends the awake request indication information to the relay device to request the relay device to send the awake request information to the WUR of the STA3, so that the WUP of the STA3 wakes up the MR of the STA3, and implements data transmission between the AP and the STA3.
  • STA3 does not need to frequently listen to beacon frames to reduce power consumption.
  • the AP wakes up STA3 in time through the relay device, which reduces the delay caused by waiting for STA3 to sleep.
  • a possible implementation manner is: the AP retransmits the wakeup request indication information to the relay device, to request the relay device to retransmit the wakeup request information to the WUR of the STA3. To wake up the MR of STA3.
  • the AP communicates with other STAs.
  • the manner in which the AP determines that the MR of the STA3 is failed is not limited to the following: a possible implementation manner: the relay device fails to receive the wakeup acknowledgement frame sent by the STA3 within the preset time period, and then sends a wakeup failure to the AP. Instructing information, thereby causing the AP to determine that the MR waking up STA3 failed.
  • Another possible implementation manner the AP does not receive the wake-up acknowledgement frame sent by the relay device or STA3 within the preset time, and then determines that the MR waking up the STA3 fails.
  • the apparatus 16 is a schematic structural diagram of a data transmission apparatus according to an embodiment of the present application.
  • the apparatus of this embodiment is deployed in a first network device.
  • the apparatus in this embodiment includes: a receiving module 1601 and a sending module 1602, where the receiving module 1601 is used.
  • the sending module 1602 is configured to send the WUR to the third network device Sending the wakeup request information, the wakeup request information is used to request to wake up the primary transceiver MR of the third network device.
  • the receiving module 1601 is further configured to receive a wakeup acknowledgement frame sent by the third network device, where the wakeup acknowledgement frame is used to indicate that the MR of the third network device has been woken up.
  • the sending module 1602 is further configured to send the wakeup acknowledgement frame to the second network device.
  • the receiving module 1601 is further configured to receive a multi-user wake-up acknowledgement frame sent by the third network device, where the multi-user wake-up acknowledgement frame is used to indicate that the MR of the third network device has been woken up.
  • the multi-user wake-up confirmation frame includes an identifier of the first network device and an identifier of the second network device.
  • the sending module 1602 is further configured to send wakeup request information to the wakeup receiver WUR of the second network device, where the wakeup request information is used to request to wake up the primary transceiver of the second network device. MR.
  • the sending module 1602 is further configured to: if the receiving module does not receive the wakeup acknowledgement frame within the preset time period, send the wakeup failure indication information to the second network device, where the wakeup fails
  • the indication information is used to indicate that the MR of the third network device is not awake.
  • the receiving module 1601 is further configured to receive a retransmission request sent by the second network device, where the retransmission request is used to request to send wake request information to a WUR of the third network device.
  • the awake request indication information is carried in a media access control MAC frame, where the MAC frame includes the awake request indication information and information that needs to be forwarded to the third network device;
  • the waking request information sent by the sending module to the WUR of the third network device includes the information that needs to be forwarded to the third network device.
  • the wakeup request indication information is carried in an aggregated frame sent by the second network device,
  • the aggregation frame includes a first type of frame and a second type of frame, where the first type of frame includes the wakeup request indication information, and the second type of frame includes information that needs to be forwarded to the third network device. ;
  • the wakeup request information includes the information that needs to be forwarded to the third network device.
  • the receiving module 1601 is further configured to receive a frequency band or a channel where the WUR of the third network device that is sent by the second network device is located;
  • the sending module 1602 is further configured to send the wakeup request information to a WUR of the third network device by using a frequency band or a channel where the WUR is located.
  • the sending module 1602 is further configured to send a time of the WUR open window of the third network device to the second network device.
  • the device embodiment shown in FIG. 16 is correspondingly used to perform the steps performed by the first network device in the foregoing method embodiments, and the implementation principles and technical effects thereof are similar, and details are not described herein again.
  • FIG. 17 is a schematic structural diagram of a data transmission apparatus according to another embodiment of the present application.
  • the apparatus of this embodiment includes a sending module 1701 and a receiving module 1702, where the sending module 1701 is configured to send a wakeup request indication information to the first network device, and wake up.
  • the request indication information is used to indicate that the wakeup request information is sent to the wakeup receiver WUR of the third network device, the wakeup request information is used to request to wake up the primary transceiver MR of the third network device, and the receiving module 1702 is configured to receive the wakeup acknowledgement frame and wake up the acknowledgement.
  • the frame is used to indicate that the MR of the third network device has been woken up.
  • the receiving module 1702 is specifically configured to receive a wakeup acknowledgement frame sent by the first network device.
  • the receiving module 1702 is specifically configured to receive a wakeup acknowledgement frame sent by the third network device.
  • the sending module 1701 is further configured to send, to the first network device, a frequency band or a channel where the WUR of the third network device is located.
  • the receiving module 1702 is specifically configured to receive a multi-user wake-up acknowledgement frame sent by the third network device, where the multi-user wake-up acknowledgement frame is used to indicate that the MR of the third network device has been woken up, and the multi-user wake-up acknowledgement frame includes The identifier of the third network device and the identifier of the first network device.
  • the receiving module 1702 is further configured to receive wakeup request information sent by the first network device, where the wakeup request information is used to request to wake up the MR of the second network device.
  • the wakeup request indication information is carried in the medium access control MAC frame, and the MAC frame includes the wakeup request indication information and the information that the first network device needs to forward to the third network device.
  • the awake request indication information is carried in an aggregated frame, where the aggregated frame includes a first type of frame and a second type of frame, where the first type of frame includes wakeup request indication information; and the second type of frame includes the first network. Information that the device forwards to the third network device.
  • the receiving module 1702 is further configured to receive the awake failure indication information sent by the first network device, where the awake failure indication information is used to indicate that the MR of the third network device is not awake.
  • the sending module 1701 is further configured to send a retransmission request to the first network device, where the retransmission request is used to request the first network device to send the wake request information to the WUR of the third network device.
  • the method further includes: the processing module 1703 processing module is further configured to determine a WUR open window time of the third network device.
  • the processing module is further configured to acquire a WUR open window time of the third network device.
  • the processing module 1703 controls the receiving module to be specifically configured to receive the sending by the first network device.
  • the WUR of the third network device opens the window time.
  • the processing module 1703 is specifically configured to negotiate the time of the WUR open window of the third network device with the third network device.
  • the device embodiment shown in FIG. 17 is correspondingly used to perform the steps performed by the second network device in the foregoing method embodiments.
  • the implementation principle and technical effects are similar, and details are not described herein again.
  • FIG. 18 is a schematic structural diagram of a data transmission apparatus according to still another embodiment of the present application.
  • the apparatus of this embodiment is deployed in a third device.
  • the apparatus in this embodiment includes a receiving module 1801 and a processing module 1802, where the receiving module 1801 is configured to receive
  • the awake request information sent by the first network device is generated after the first network device receives the awake request indication information sent by the second network device, where the awake request indication information is used to indicate that the first network device is to the third network device.
  • the wake-up receiver WUR sends wake-up request information for requesting wake-up of the primary transceiver MR of the third network device; the processing module 1802 is for the third network device to wake up the MR.
  • the method further includes:
  • the sending module 1803 is configured to send a wake-up acknowledgement frame to the first network device or the second network device, where the wake-up acknowledgement frame is used to indicate that the MR of the third network device has been woken up.
  • the processing module 1802 is further configured to negotiate a WUR open window time of the third network device with the second network device.
  • the device embodiment shown in FIG. 18 is correspondingly used to perform the steps performed by the third network device in the foregoing method embodiments.
  • the implementation principle and technical effects are similar, and details are not described herein again.
  • FIG. 19 is a schematic structural diagram of a data transmission apparatus according to an embodiment of the present application.
  • the apparatus of this embodiment is deployed in a first network device.
  • the apparatus in this embodiment includes: a receiver 1901 and a transmitter 1902, where the receiver 1901 is configured to: Receiving wakeup request indication information sent by the second network device, where the wakeup request indication information is used to send the wakeup request information to the wakeup receiver WUR of the third network device; the sender 1902 is configured to send the wakeup request information to the WUR of the third network device.
  • the wakeup request information is used to request to wake up the primary transceiver MR of the third network device.
  • the receiver 1901 is further configured to receive a wakeup acknowledgement frame sent by the third network device, where the wakeup acknowledgement frame is used to indicate that the MR of the third network device has been woken up.
  • the transmitter 1902 is further configured to send a wakeup acknowledgement frame to the second network device.
  • the receiver 1901 is further configured to receive a multi-user wake-up acknowledgement frame sent by the third network device, where the multi-user wake-up acknowledgement frame is used to indicate that the MR of the third network device has been woken up, and the multi-user wake-up acknowledgement frame includes The identifier of the first network device and the identifier of the second network device.
  • the transmitter 1902 is further configured to send wakeup request information to the wakeup receiver WUR of the second network device, where the wakeup request information is used to request to wake up the primary transceiver MR of the second network device.
  • the transmitter 1902 is further configured to: if the receiver does not receive the wakeup acknowledgement frame within the preset time period, send the wakeup failure indication information to the second network device, where the wakeup failure indication information is used to indicate the third network.
  • the MR of the device is not woken up.
  • the receiver 1901 is further configured to receive a retransmission request sent by the second network device, where the retransmission request is used to request to send the wakeup request information to the WUR of the third network device.
  • the wakeup request indication information is carried in the media access control MAC frame, and the MAC frame includes the wakeup request indication information and the information that needs to be forwarded to the third network device.
  • the wakeup request information sent by the transmitter 1902 to the WUR of the third network device includes information that needs to be forwarded to the third network device.
  • the awake request indication information carries an aggregated frame sent by the second network device, where the aggregated frame includes a first type of frame and a second type of frame, where the first type of frame includes wakeup request indication information; and the second type of frame Contains information that needs to be forwarded to the third network device;
  • the wakeup request information includes information that needs to be forwarded to the third network device.
  • the receiver 1901 is further configured to receive a frequency band or a channel where the WUR of the third network device sent by the second network device is located;
  • the transmitter 1902 is further configured to send wake request information to the WUR of the third network device by using a frequency band or channel in which the WUR is located.
  • the transmitter 1902 is further configured to send the time of the WUR open window of the third network device to the second network device.
  • the device embodiment shown in FIG. 19 is correspondingly used to perform the steps performed by the first network device in the foregoing method embodiments.
  • the implementation principle and technical effects are similar, and details are not described herein again.
  • FIG. 20 is a schematic structural diagram of a data transmission apparatus according to another embodiment of the present application.
  • the apparatus of this embodiment includes a transmitter 2001 and a receiver 2002, where the transmitter 2001 is configured to send a wakeup request indication information to the first network device, and wake up.
  • the request indication information is used to indicate that the wakeup request information is sent to the wakeup receiver WUR of the third network device, the wakeup request information is used to request to wake up the primary transceiver MR of the third network device, and the receiver 2002 is configured to receive the wakeup acknowledgement frame and wake up the acknowledgement.
  • the frame is used to indicate that the MR of the third network device has been woken up.
  • the receiver 2002 is specifically configured to receive a wakeup acknowledgement frame sent by the first network device.
  • the receiver 2002 is specifically configured to receive a wake-up acknowledgement frame sent by the third network device.
  • the transmitter 2001 is further configured to send, to the first network device, a frequency band or a channel in which the WUR of the third network device is located.
  • the receiver 2002 is specifically configured to receive a multi-user wake-up acknowledgement frame sent by the third network device, where the multi-user wake-up acknowledgement frame is used to indicate that the MR of the third network device has been woken up, and the multi-user wake-up acknowledgement frame includes The identifier of the third network device and the identifier of the first network device.
  • the receiver 2002 is further configured to receive wakeup request information sent by the first network device, where the wakeup request information is used to request to wake up the MR of the second network device.
  • the wakeup request indication information is carried in the medium access control MAC frame, and the MAC frame includes the wakeup request indication information and the information that the first network device needs to forward to the third network device.
  • the awake request indication information is carried in an aggregated frame, where the aggregated frame includes a first type of frame and a second type of frame, where the first type of frame includes wakeup request indication information; and the second type of frame includes the first network. Information that the device forwards to the third network device.
  • the receiver 2002 is further configured to receive the wakeup failure indication information sent by the first network device, where the wakeup failure indication information is used to indicate that the MR of the third network device is not awake.
  • the transmitter 2001 is further configured to send a retransmission request to the first network device, where the retransmission request is used to request the first network device to send the wake request information to the WUR of the third network device.
  • the method further includes: the processor 2003 processor is further configured to determine the WUR of the third network device. Open the window time.
  • the processor 2003 is further configured to acquire a WUR open window time of the third network device.
  • the processor 2003 controls the receiver to specifically receive the WUR open window time of the third network device sent by the first network device.
  • the processor is specifically configured to negotiate a time of the WUR open window of the third network device with the third network device.
  • the device embodiment shown in FIG. 20 is correspondingly used to perform the steps performed by the second network device in the foregoing method embodiments.
  • the implementation principle and the technical effects are similar, and details are not described herein again.
  • FIG. 21 is a schematic structural diagram of a data transmission apparatus according to another embodiment of the present disclosure.
  • the apparatus of this embodiment is deployed in a third network device, where the apparatus of this embodiment includes: WUR2101 and MR2102.
  • the WUR2101 is configured to receive the wakeup request information sent by the first network device, where the wakeup request information is generated after the first network device receives the wakeup request indication information sent by the second network device, where the wakeup request indication information is used to indicate that the first network device is WUR2101 sends wakeup request information, and wakeup request information is used to request to wake up MR2102;
  • the WUR2101 is used to wake up the MR2102.
  • the MR2102 is configured to send a wakeup acknowledgement frame to the first network device or the second network device, where the wakeup acknowledgement frame is used to indicate that the MR2102 of the third network device has been woken up.
  • the method further includes:
  • the processor 2103 is configured to control the MR2102 to negotiate with the second network device for the WUR2101 open window time of the third network device.
  • the device embodiment shown in FIG. 21 is correspondingly used to perform the steps performed by the third network device in the foregoing method embodiments.
  • the implementation principle and technical effects are similar, and details are not described herein again.

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Abstract

本申请提供一种数据传输方法和装置，该方法通过第二网络设备向第一网络设备发送唤醒请求指示信息，以请求第一网络设备向第三网络设备的WUR发送唤醒请求信息，使第三网络设备的WUP唤醒其的MR，实现第二网络设备与第三网络设备的数据传输。从而，第三网络设备无需频繁侦听信标(Beacon)帧，减小功耗。第二网络设备在第三网络设备长时间休眠的状态下，通过第一网络设备及时唤醒第三网络设备，减少了等待第三网络设备休眠所造成的时延。

Description

数据传输方法和装置
本申请要求于2016年11月28日提交中国专利局、申请号为201611063187.5、申请名称为“数据传输方法和装置”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
本申请涉及通信技术，尤其涉及一种数据传输方法和装置。.
背景技术
在无线保真(Wireless Fidelity，简称：WiFi)网络中，网络设备的相当一部分能量浪费在无接收信号时的信道监听。
现有技术中，通过在网络设备中设置唤醒接收机(Wake up Receiver，简称：WUR)和主收发机(Main Radio，简称：MR)，其中，WUR的功耗远低于MR，大约为MR的1％。当无接收信号时，MR进入休眠状态，WUR处于工作状态。当进行配对的两个网络设备需要进行数据传输时，进行配对的两个网络设备如：站点1(Station 1，简称：STA1)和站点2(Station 2，简称：STA2)，其中，STA1向STA2的WUR发送唤醒数据分组(Wake up packet，简称：WUP)，其中，WUP中携带唤醒帧，以使STA2的WUR唤醒其MR，从而，实现STA1和STA2的数据传输。
然而，当STA1不具备发送WUP的能力时，无法唤醒STA2的MR，从而，进行配对的两个网络设备无法进行数据传输。
发明内容
本申请提供一种数据传输方法和装置，以解决现有技术中当某个网络设备不具备发送WUP的能力时，两个网络设备无法进行数据传输的问题。
一个方面，本申请提供一种数据传输方法，其应用场景中至少包含三个网络设备，其中，第一网络设备可与第二网络设备和第三网络进行通信，且第一网络设备具备向第三网络设备发送WUP的条件，第二网络设备和第三网络设备为配对的网络设备，第二网络设备和第三网络设备欲进行数据传输，第二网络设备不具备发送WUP的条件。该方法包括：第二网络设备向第一网络设备发送唤醒请求指示信息；第一网络设备接收到第二网络设备发送的唤醒请求指示信息之后，向第三网络设备的WUR发送唤醒请求信息，第三网络设备的WUR唤醒其MR。即：不具备发送WUP条件的第二网络设备通过具备发送WUP条件的第一网络设备向第三网络设备的WUR发送唤醒请求信息，从而，实现唤醒第三网络设备的MR，使得第二网络设备和第三网络设备进行数据传输。
另一个方面，本申请提供一种数据传输方法，包括：
第二网络设备向第一网络设备发送唤醒请求指示信息，指示第一网络设备向第三网络设备的WUR发送唤醒请求信息，第一网络设备向第三网络设备的WUR发送唤醒请求信息，请求第三网络设备的WUR唤醒其自身的MR。第三网络设备的MR被唤醒之后，第二网络设备通过接收唤醒确认帧，确认第三网络设备的MR已被唤醒。即：不具备发送WUP条件的第二网络设备通过具备发送WUP条件的第一网络设备向第三网络设备的WUR发送唤醒请求信息，从而，实现唤醒第三网络设备的MR，使得第二网络设备和第三网络设备进行数据传输。
再一方面，本申请提供一种数据传输方法，包括：
第二网络设备向第一网络设备发送唤醒请求指示信息，指示第一网络设备向第三网络设备的WUR发送唤醒请求信息，第一网络设备向第三网络设备的WUR发送唤醒请求信息，第一网络设备向第三网络设备的WUR发送唤醒请求信息，请求第三网络设备的WUR唤醒其自身的MR。第三网络设备的WUR唤醒其自身的MR。即：不具备发送WUP条件的第二网络设备通过具备发送WUP条件的第一网络设备向第三网络设备的WUR发送唤醒请求信息，从而，实现唤醒第三网络设备的MR，使得第二网络设备和第三网络设备进行数据传输。
又一方面，本申请提供一种数据传输装置，该装置部署在第一网络设备中，该装置包括接收模块和发送模块，其中，
第二网络设备向第一网络设备的接收模块发送唤醒请求指示信息；第一网络设备的接收模块接收到第二网络设备发送的唤醒请求指示信息之后，第一网络设备的发送模块向第三网络设备的WUR发送唤醒请求信息，第三网络设备的WUR唤醒其MR。即：不具备发送WUP条件的第二网络设备通过具备发送WUP条件的第一网络设备向第三网络设备的WUR发送唤醒请求信息，从而，实现唤醒第三网络设备的MR，使得第二网络设备和第三网络设备进行数据传输。
又一个方面，本申请提供一种数据传输装置，该装置部署在第二网络设备中，包括：该装置包括发送模块和接收模块，第二网络设备的发送模块向第一网络设备发送唤醒请求指示信息，指示第一网络设备向第三网络设备的WUR发送唤醒请求信息，第一网络设备向第三网络设备的WUR发送唤醒请求信息，请求第三网络设备的WUR唤醒其自身的MR。第三网络设备的MR被唤醒之后，第二网络设备的接收模块通过接收唤醒确认帧，确认第三网络设备的MR已被唤醒。即：不具备发送WUP条件的第二网络设备通过具备发送WUP条件的第一网络设备向第三网络设备的WUR发送唤醒请求信息，从而，实现唤醒第三网络设备的MR，使得第二网络设备和第三网络设备进行数据传输。
又一方面，本申请提供一种数据传输装置，该装置部署在第三网络设备中，该装置包括WUR和MR，包括：
第二网络设备向第一网络设备发送唤醒请求指示信息，指示第一网络设备向第三网络设备的WUR发送唤醒请求信息，第一网络设备向第三网络设备的WUR发送唤醒请求信息，第一网络设备向第三网络设备的WUR发送唤醒请求信息，请求第三网络设备的WUR唤醒其自身的MR。第三网络设备的WUR唤醒其自身的MR。即：不具 备发送WUP条件的第二网络设备通过具备发送WUP条件的第一网络设备向第三网络设备的WUR发送唤醒请求信息，从而，实现唤醒第三网络设备的MR，使得第二网络设备和第三网络设备进行数据传输。
又一方面，本申请提供一种数据传输装置，该装置部署在第一网络设备中，该装置包括接收器和发送器，其中，
第二网络设备向第一网络设备的接收器发送唤醒请求指示信息；第一网络设备的接收器接收到第二网络设备发送的唤醒请求指示信息之后，第一网络设备的发送器向第三网络设备的WUR发送唤醒请求信息，第三网络设备的WUR唤醒其MR。即：不具备发送WUP条件的第二网络设备通过具备发送WUP条件的第一网络设备向第三网络设备的WUR发送唤醒请求信息，从而，实现唤醒第三网络设备的MR，使得第二网络设备和第三网络设备进行数据传输。
又一个方面，本申请提供一种数据传输装置，该装置部署在第二网络设备中，包括：该装置包括发送器和接收器，第二网络设备的发送器向第一网络设备发送唤醒请求指示信息，指示第一网络设备向第三网络设备的WUR发送唤醒请求信息，第一网络设备向第三网络设备的WUR发送唤醒请求信息，请求第三网络设备的WUR唤醒其自身的MR。第三网络设备的MR被唤醒之后，第二网络设备的接收器通过接收唤醒确认帧，确认第三网络设备的MR已被唤醒。即：不具备发送WUP条件的第二网络设备通过具备发送WUP条件的第一网络设备向第三网络设备的WUR发送唤醒请求信息，从而，实现唤醒第三网络设备的MR，使得第二网络设备和第三网络设备进行数据传输。
附图说明
图1为本申请的场景示意图；
图2为本申请一个实施例数据传输方法的示意图；
图3为本申请WUH帧的帧格式示意图；
图4为本申请一个实施例数据传输方法的示意图；
图5为本申请一个实施例数据传输方法的示意图；
图6为本申请一个实施例数据传输方法的示意图；
图7为本申请另一个实施例数据传输方法的示意图；
图8为本申请又一个实施例数据传输方法的示意图；
图9为本申请HE-A-control的帧结构示意图；
图10为本申请又一个实施例数据传输方法的示意图；
图11为本申请TDLS传输示意图；
图12为本申请WUP的一种可能的帧结构示意图；
图13为本申请STA1和STA2互相协商WUR的开启窗口时间的示意图；
图14为本申请的另一种场景示意图；
图15为本申请又一个实施例数据传输方法的示意图。
图16为本申请一个实施例数据传输装置的结构示意图；
图17为本申请另一实施例的数据传输装置的结构示意图；
图18为本申请再一个实施例的数据传输装置结构示意图；
图19为本申请一个实施例数据传输装置的结构示意图；
图20为本申请另一实施例的数据传输装置的结构示意图；
图21为本申请又一实施例的数据传输装置的结构示意图。
具体实施方式
下面以具体地实施例对本申请的技术方案进行详细说明。下面这几个具体的实施例可以相互结合，对于相同或相似的概念或过程可能在某些实施例不再赘述。
图1为本申请的场景示意图，如图1所示，该场景中包含三个网络设备，其中，第一网络设备可与第二网络设备和第三网络进行通信，且第一网络设备具备向第三网络设备发送WUP的条件，第二网络设备和第三网络设备为配对的网络设备，第二网络设备和第三网络设备欲进行数据传输，第二网络设备不具备发送WUP的条件。可选地，第一网络设备还具备向第二网络设备发送WUP的条件。
在图1以及下述各实施例中，以第一网络设备为AP、第二网络设备为STA1和第三网络设备为STA2为例进行描述，其中，STA1和STA2为同AP关联的多个STA中的其中两个进行配对的STA。
图2为本申请一个实施例数据传输方法的示意图，如图2所示，本实施例的方法如下：
S201：STA1向AP发送唤醒请求指示信息。
其中，唤醒请求指示信息用于指示向STA2的WUR发送唤醒请求信息。
其中，一种可能的实现方式为：
STA1向AP发送唤醒求助(Wake Up Help，简称：WUH)帧，WUH帧用于指示AP向STA2的WUR发送WUP，其中，WUP中包含唤醒帧，以使STA2的WUR唤醒STA2的MR。
其中，WUH帧一种可能的的帧格式如图3所示，图3为本申请WUH帧的帧格式示意图，WUH帧包括帧类型指示、发送地址、目的地址和帧校验序列等。其中，帧类型指示用于指示该帧为WUH帧。发送地址用于指示发送该帧的STA，本实施例中为STA1，目的地址用于指示需要AP帮助唤醒的目的STA，本实施例中为STA2。其中，发送地址和目的地址可以是STA的关联标识(Association ID)，也可以是STA的媒体接入控制(Medium Access Control，简称：MAC)地址，对此，本申请不做限制。
AP接收STA1发送的WUH帧之后，执行S203。
S203：AP向STA2的WUR发送唤醒请求信息。
一种可能的实现方式，AP向STA2的WUR发送WUP，STA2的WUR接收到WUP之后，唤醒其MR。
S205：STA1接收唤醒确认帧。
其中，唤醒确认帧用于指示STA2的MR已唤醒。唤醒确认帧可以是确认帧(Acknowledge，简称：ACK)、唤醒轮询帧(Power Save Poll，简称：PS-poll)或其他能够指示MR已唤醒的帧，对此，本申请不做限制。
STA1接收唤醒确认帧的方式包括但不限于以下几种可能的实现方式：
其中，一种可能的实现方式如图4所示：
S2051a：STA2向AP发送唤醒确认帧。
通过向AP发送唤醒确认帧，以使AP获知STA2的MR已唤醒，避免AP进行非必要的重传WUP。
S2052a：AP向STA1发送唤醒确认帧。
另一种可能的实现方式如图5所示：
S205b：STA2向STA1发送唤醒确认帧。
又一种可能的实现方式如图6所示：
S205c：STA2发送多用户唤醒确认帧。
其中，多用户唤醒确认帧可以是广播帧。多用户唤醒确认帧中包含AP和STA1的标识，通过一个MAC帧，同时告知AP和STA1已经唤醒STA2的MR。从而，减少物理层前导、MAC帧头带来的开销。
在图5或图6所示的可能的实现方式中，STA2需获知STA1的标识信息，以便于向STA1发送唤醒确认帧；其中，STA1的标识信息可以是地址信息或者其他能够标识STA1的信息。
可选地，STA2可以从AP向STA2发送的WUP中获知，包括但不限于如下方式：
其中，一种可能的实现方式，WUP中携带STA1的标识信息，如WUP中携带源地址，源地址为STA1的地址。WUP的一种可能的实现方式如图12所示，图12为WUP的一种可能的帧结构示意图。该WUP结构中包含帧类型指示、源地址(Source Address，简称：SA)，行为指示(Action/Behavior Indication)中的一种或者多种。
其中，帧类型指示用于指示该帧的类型及其用途，用于指示帮助DLS/TDLS对中的一个STA来唤醒另外一个STA的MR。源地址用于指示该WUP的请求发送方，该WUP的发送方为AP，请求发送方为STA1，因此，源地址为STA1的地址。STA2根据源地址确定请求发送方为STA1。行为指示用于指示STA2的MR唤醒后的行为。例如：可以指示STA2唤醒之后立即回复唤醒确认帧。也可以指示STA2唤醒之后，等待接收Beacon。也可以指示STA2唤醒之后，向STA1发送唤醒指示。也可以指示STA2唤醒之后执行其他自定义的行为，对此，本申请不作限制。
另一种可能的实现方式，与前一种可能的实现方式不同的是，WUP中不携带源地址，STA2根据WUP中的帧类型指示获知该帧用于指示帮助DLS/TDLS对中的一个STA来唤醒另外一个STA的MR，而STA2预先知道与其进行DLS/TDLS配对的另一个STA(即STA1)的标识信息。
S207：STA1与STA2进行数据传输。
本实施例，通过STA1向AP发送唤醒请求指示信息，以请求AP向STA2的WUR发送唤醒请求信息，使STA2的WUP唤醒STA2的MR，实现STA1与STA2的数据传输。从而，STA2无需频繁侦听信标(Beacon)帧，减小功耗。STA1在STA2长时间休眠的状态下，通过AP及时唤醒STA2，减少了等待STA2休眠所造成的时延。
在图2所示实施例中，若唤醒STA2的MR失败，一种可能的实现方式：STA1则向AP重传WUH，以请求AP重新向STA2的WUR发送WUP，以唤醒STA2的 MR。另一种可能的实现方式：STA1进入休眠状态，待STA2的MR唤醒之后，通过AP向STA1的WUR发送唤醒请求信息，以唤醒STA1的MR。
其中，STA1确定唤醒STA2的MR失败的方式包括但不限于如下方式：一种可能的实现方式：AP在预设时间段内未收到STA2发送的唤醒确认帧，则向STA1发送唤醒失败指示信息，从而，使得STA1确定唤醒STA2的MR失败。另一种可能的实现方式：STA1在预设时间内未收到AP或者STA2发送的唤醒确认帧，则确定唤醒STA2的MR失败。
图7为本申请另一个实施例数据传输方法的示意图，如图7所示，本实施例的方法如下：
S701：STA1向AP发送MAC帧。
其中，MAC帧可以为数据帧、管理帧或控制帧等中的任一种帧。
MAC帧中包含唤醒请求指示信息和需要转发给STA2的信息，该唤醒请求指示信息用于指示AP向STA2的WUR发送WUP，以唤醒STA2的MR。
例如：STA1向AP发送MAC帧，MAC帧中包含STA1想要发送给STA2的部分或者全部数据。STA1通过设置MAC帧的目的地址为STA2，以指示AP向STA2的WUR发送WUP，以唤醒STA2的MR。
可选地，若STA1指示AP接收到MAC帧之后发送确认帧，则AP执行S703。
S703：AP向STA1发送确认帧。
确认帧用于指示AP已正确接收到STA1发送的MAC帧。
S705：AP向STA2的WUR发送WUP。
其中，S703和S705的步骤执行顺序不做限制。
S707：STA2的WUR接收到WUP之后，唤醒STA2的MR。
唤醒STA2的MR之后，执行S709。
S709：STA2向AP发送唤醒确认帧。
唤醒确认帧用于指示STA2的MR已唤醒。
S711：AP向STA2发送MAC帧中需要转发给STA2的信息。
S713：STA2向AP发送确认帧。
该确认帧用于指示STA2已正确接收AP发送的MAC帧中需要转发给STA2的信息。
若AP将从STA1接收到的MAC帧中需要转发给STA2的信息已全部转发给STA2，则执行S715。
S715：AP向STA2发送数据发送完成指示信息。
数据发送完成指示信息用于指示AP向STA2发送的数据已发送完成。
S717：AP或STA2向STA1发送唤醒确认帧。
其中，唤醒确认帧用于指示STA2的MR已唤醒。
S719：STA1和STA2进行数据传输。
本实施例，通过STA1向AP发送MAC帧，MAC帧中携带唤醒请求指示信息，以请求AP向STA2的WUR发送WUP，使STA2的WUP唤醒STA2的MR，从而，STA2无需频繁侦听信标(Beacon)帧，减小功耗。STA1在STA2长时间休眠的状态 下，通过AP及时唤醒STA2，减少了等待STA2休眠所造成的时延。
在图7所示实施例中若唤醒STA2的MR失败，一种可能的实现方式：STA1则向AP重传MAC帧，以请求AP重新向STA2的WUR发送WUP，以唤醒STA2。另一种可能的实现方式：STA1进入休眠状态，待STA2的MR唤醒之后，通过AP唤醒STA1。
其中，STA1确定唤醒STA2的MR失败的方式可参考前述实施例的详细描述，此处不再赘述。
图8为本申请又一个实施例数据传输方法的示意图，如图8所示，本实施例的方法如下：
S801：STA1向AP发送MAC帧。
其中，MAC帧可以为数据帧、管理帧或控制帧等中的任一种帧。例如：解除TDLS帧(TDLS tear down frame)或者TDLS对业务指示帧(TDLS peer traffic indication frame)。前者用于STA1同STA2解除TDLS的链路；后者用于STA1向STA2报告自己有传输业务的需求。
MAC帧中包含唤醒请求指示信息和需要转发给STA2的信息，唤醒请求指示信息用于指示AP向STA2的WUR发送WUP，并在WUP中携带上述MAC帧中需要转发给STA2的信息。即：AP可以通过向STA2的WUR发送的WUP携带MAC中需要转发给STA2的信息。
可选地，若STA1指示AP接收到MAC帧之后发送确认帧，则AP执行S803。
S803：AP向STA1发送确认帧。
确认帧用于指示AP已正确接收到STA1发送的MAC帧。
S805：AP向STA2的WUR发送WUP。
WUP中携带MAC帧中需要转发给STA2的信息。
其中，S803和S805的步骤执行顺序不做限制。
本实施例，通过STA1向AP发送MAC帧，MAC帧中包含唤醒请求指示信息和需要转发给STA2的信息，唤醒请求指示信息用于指示AP向STA2的WUR发送WUP，并在WUP中携带上述MAC帧中需要转发给STA2的信息，AP向STA2的WUR发送WUP，WUP中携带MAC帧中需要转发给STA2的信息，从而，使得AP通过WUP向STA2转发STA1的数据，无需唤醒STA2的MR。
可选地，在图8所示实施例中，STA2的WUR接收到WUP中包含STA1发送的MAC帧中需要转发给STA2的信息，可主动唤醒STA2的MR，并向STA1发送唤醒确认帧，以使STA1和STA2进行数据传输。唤醒请求指示信息可以承载在相应MAC帧的MAC帧头，比如通过高吞吐率控制(High Throughput Control，简称：HTC)进行携带，通过高效聚合控制(High Efficient Aggregated Control,简称：HE-A-control)变种中的控制ID表示指示信息，HE-A-control的帧结构如图9所示，通过在控制信息中携带目的地址指示其希望唤醒的目的STA，比如以上流程中的STA2。其中，由于相应MAC帧已经携带了发送地址，因此HTC中不需要再添加发送地址。
图10为本申请又一个实施例数据传输方法的示意图，如图10所示，本实施例的方法如下：
S1001：STA1向AP发送聚合帧。
其中，聚合帧包括：第一类型帧和第二类型帧，其中，第一类型帧中包含唤醒请求指示信息，第二类型帧中包含需要转发给第三网络设备的信息。第一类型帧可以为WUH帧，用于指示AP向STA2的WUR发送WUP，以唤醒STA2的MR。第二类型帧可以为数据帧、管理帧或控制帧等中的任一种帧。
可选地，若STA1指示AP接收到MAC帧之后发送确认帧，则AP执行S1003。
S1003：AP向STA1发送确认帧。
确认帧为块确认(Block Acknowledge，简称：BA)，确认帧用于指示AP已正确接收到STA1发送的聚合帧。
S1005：AP向STA2的WUR发送WUP。
其中，S1003和S1005的步骤执行顺序不做限制。
S1007～S1009。
S1007～S1019的详细描述参见S707～S719，此处不再赘述。
本实施例，通过STA1向AP发送聚合帧，聚合帧中包含第一类型帧和第二类型帧，其中，第一类型帧中包含唤醒请求指示信息，第二类型帧中包含需要转发给STA2的信息，通过唤醒请求指示信息指示AP向STA2的WUR发送WUP，以唤醒STA2的MR。从而，STA2无需频繁侦听信标(Beacon)帧，减小功耗。STA1在STA2长时间休眠的状态下，通过AP及时唤醒STA2，减少了等待STA2休眠所造成的时延。
在图10所示实施例中，若AP只收到第一类型帧，而没有成功接收第二类型帧或者只成功接收到第二类型帧中的部分信息，STA1在确定STA2的MR已唤醒后，STA1向STA2发送上述未成功接收的第二类型帧或者第二类型帧的部分信息。
AP在建立一个基本服务集合(Basic Service Set，简称：BSS)时，确定一个信道作为主信道，当AP同STA进行数据传输时，以主信道或者以包括主信道的更宽的信道进行通信。在通道直接链路建立(Tunneled Direct Link Setup，简称：TDLS)场景下，TDLS提供一种机制，使两个配对的STA进行脱离信道(Off-Channel)的TDLS传输，即选取一个非主信道作为TDLS传输的临时主信道，进行数据传输，如图11所示，图11为本申请TDLS传输示意图。
当两个配对的STA(如：STA1和STA2)进行脱离信道的TDLS传输时，则脱离AP的控制。对于STA1和STA2的WUR，其开关状态以及所处信道，也可能脱离AP的控制。在该场景下，在上述各实施例的基础上，当STA1请求AP唤醒STA2时，还需向AP发送STA2的WUR所处的频段(Band)或者信道(Channel)。AP在STA2的WUR所处的频段或者信道向STA2的WUR发送WUP。STA2唤醒MR之后，STA2可以通过主信道或者临时主信道发送唤醒确认帧，其中，一种可能的情况，STA2切换到主信道，向AP发送唤醒确认帧；另一种可能的情况，STA2在与STA1的临时信道上发送唤醒确认帧，AP切换到STA2和STA1的临时主信道，接收STA2发送的唤醒确认帧。STA2可以通过主信道或者临时主信道发送唤醒确认帧，其中，一种可能的情况，STA2切换到主信道，向AP发送唤醒确认帧，AP在主信道上向STA1发送唤醒确认帧，STA1切换到主信道上接收唤醒确认帧；另一种可能的情况，STA2在与STA1的临时信道上发送唤醒确认帧，STA1在临时主信道接收STA2发送的唤醒确认帧。
在STA1不知道STA2的WUR和MR的开启状态，而AP已知STA2的WUR和 MR的开启状态时，AP接收到STA1发送的WUH帧之后，根据以下几种情况进行处理：
一种情况：若STA2的MR处于开启状态，则AP直接向STA1发送唤醒确认帧，已告知STA2的MR已经唤醒。
另一种情况：若STA2的MR处于关闭状态，WUR处于开启状态，则执行上述各实施例的步骤。
再一种情况：若STA2的MR和WUR均处于关闭状态，则AP向STA1发送唤醒失败指示。可选地，将STA2的MR和/或WUR处于开启窗口时间告知STA1，以便STA1在开启窗口内的时间点向AP发送WUH帧。
本实施例，通过在AP已知STA2的WUR和MR的开启状态的情况下，可以直接向STA1反馈唤醒确认帧或者唤醒失败指示，从而，避免不必要的唤醒步骤，减少时延，节约功耗。
在上述各实施例中，STA1向AP发送WUH或者其他用于请求AP帮助唤醒STA2的MR之前，可以先确定STA2的WUR处于开启状态。
STA1获知STA2的WUR的开启状态包括但不限于以下几种可能的实现方式：
其中，一种可能的实现方式：STA1和STA2互相协商WUR的开启窗口时间，具体如图13所示：
S1301：STA1向STA2发送建立WUR开启窗口时间的请求帧。
该请求帧中包含第一窗口区间，用于建议STA2的WUR开启窗口时间设置为第一窗口区间。
其中，STA1可以直接向STA2发送建立WUR开启窗口时间的请求帧。也可以STA1先向AP发送建立WUR开启窗口时间的请求帧，由AP向STA2转发该请求帧。对此，本申请不作限制。
S1303：STA2向STA1发送WUR开启窗口时间的响应帧。
其中，该响应帧用于指示STA2是否同意将第一窗口区间设置为STA2的WUR开启窗口时间。若不同意，还在响应帧中携带第二窗口区间。第一窗口区间，用于建议STA2的WUR开启窗口时间设置为第二窗口区间。
其中，STA2可以直接向STA1发送WUR开启窗口时间的响应帧。也可以先发送给AP，通过AP向STA1转发该响应帧。
若响应帧中包含第二窗口区间，则还包括S1305。
S1305：STA1向STA2发送WUR开启窗口时间的确定帧，反馈最终是否成功建立WUR开启窗口时间。
另一种可能的实现方式：
STA1和STA2相互告知自己的WUR开启窗口时间。
如：STA1直接向STA2发送STA1的WUR开启窗口时间。或者，STA1向AP发送STA1的WUR开启窗口时间，AP向STA2转发STA1的WUR开启窗口时间。
STA2直接向STA1发送STA2的WUR开启窗口时间。或者，STA2向AP发送STA2的WUR开启窗口时间，AP向STA1转发STA2的WUR开启窗口时间。
再一种可能的实现方式：
AP向STA1和STA2分配相同的WUR开启窗口时间，STA1根据自身的SUR开启窗口即可获知STA2的WUR开启窗口时间。
本实施例，通过STA1预先获知STA2的WUR开启窗口时间，根据WUR开启窗口时间，确定是否请求AP唤醒STA2的MR，从而，STA2的WUR无需一直开启，只需在WUR开启窗口时间内开启，从而，进一步地节约功耗。
在上述各实施例中，STA1向AP发送WUH之后，可选地，STA1进入休眠状态，在接收STA2或者AP发送的唤醒确认帧之前，AP向STA1发送WUP，以唤醒STA1的MR。从而，进一步地节约功耗。
若AP未唤醒STA2的MR，一种可能的实现方式：AP向STA1发送WUP，WUP中携带唤醒失败指示，指示STA2的MR未唤醒。另一种可能的实现方式：AP向STA1发送WUP，WUP用于唤醒STA1的MR，AP向STA1的MR发送唤醒失败指示，指示STA2的MR未唤醒。
图14为本申请的另一种场景示意图，在该场景中，以第一网络设备为中继设备，第二网络设备为AP，第三网络设备的STA3为例进行示出。图15为本申请又一个实施例数据传输方法的示意图。
S1501：AP向中继设备发送唤醒请求指示信息。
其中，唤醒请求指示信息用于指示中继设备向STA3的WUR发送唤醒请求信息。
S1502：中继设备向STA3发送唤醒请求信息。
其中，唤醒请求信息用于请求唤醒STA3的MR。
S1503：STA3唤醒其MR。
S1504：AP接收唤醒确认帧。
其中，唤醒确认帧用于指示STA3的MR已唤醒。唤醒确认帧可以是确认帧(Acknowledge，简称：ACK)、唤醒轮询帧(Power Save Poll，简称：PS-poll)或其他能够指示MR已唤醒的帧，对此，本申请不做限制。
AP接收唤醒确认帧的方式包括但不限于以下几种可能的实现方式：
其中，一种可能的实现方式：
S15051a：STA3向中继设备发送唤醒确认帧。
通过向中继设备发送唤醒确认帧，以使中继设备获知STA3的MR已唤醒，避免中继设备进行非必要的重传唤醒请求信息。
S15052a：中继设备向AP发送唤醒确认帧。
另一种可能的实现方式：
S1505b：STA3向AP发送唤醒确认帧。
又一种可能的实现方式：
S1505c：STA3发送多用户唤醒确认帧。
其中，多用户唤醒确认帧可以是广播帧。多用户唤醒确认帧中包含AP和中继设备的标识，通过一个MAC帧，同时告知AP和中继设备已经唤醒STA3的MR。从而，减少物理层前导、MAC帧头带来的开销。
S1505：AP与STA3进行通信。
其中AP与STA3的通信可以通过中继设备进行转发。
本实施例，通过AP向中继设备发送唤醒请求指示信息，以请求中继设备向STA3的WUR发送唤醒请求信息，使STA3的WUP唤醒STA3的MR，实现AP与STA3的数据传输。从而，STA3无需频繁侦听信标(Beacon)帧，减小功耗。AP在STA3长时间休眠的状态下，通过中继设备及时唤醒STA3，减少了等待STA3休眠所造成的时延。
在图15所示实施例中，若唤醒STA3的MR失败，一种可能的实现方式：AP向中继设备重传唤醒请求指示信息，以请求中继设备向STA3的WUR重传唤醒请求信息，以唤醒STA3的MR。另一种可能的实现方式：AP与其他STA进行通信。
其中，AP确定唤醒STA3的MR失败的方式包括但不限于如下方式：一种可能的实现方式：中继设备在预设时间段内未收到STA3发送的唤醒确认帧，则向AP发送唤醒失败指示信息，从而，使得AP确定唤醒STA3的MR失败。另一种可能的实现方式：AP在预设时间内未收到中继设备或者STA3发送的唤醒确认帧，则确定唤醒STA3的MR失败。
图16为本申请一个实施例数据传输装置的结构示意图，本实施例的装置部署在第一网络设备中，本实施例的装置包括：接收模块1601和发送模块1602，其中，接收模块1601用于接收第二网络设备发送的唤醒请求指示信息，所述唤醒请求指示信息用于指示向第三网络设备的唤醒接收机WUR发送唤醒请求信息；发送模块1602用于向所述第三网络设备的WUR发送所述唤醒请求信息，所述唤醒请求信息用于请求唤醒所述第三网络设备的主收发机MR。
在上述实施例中，所述接收模块1601还用于接收所述第三网络设备发送的唤醒确认帧，所述唤醒确认帧用于指示所述第三网络设备的MR已被唤醒。
在上述实施例中，所述发送模块1602还用于向所述第二网络设备发送所述唤醒确认帧。
在上述实施例中，所述接收模块1601还用于接收所述第三网络设备发送的多用户唤醒确认帧，所述多用户唤醒确认帧用于指示所述第三网络设备的MR已被唤醒，所述多用户唤醒确认帧中包含所述第一网络设备的标识和所述第二网络设备的标识。
在上述实施例中，所述发送模块1602还用于向所述第二网络设备的唤醒接收机WUR发送唤醒请求信息，所述唤醒请求信息用于请求唤醒所述第二网络设备的主收发机MR。
在上述实施例中，所述发送模块1602还用于若所述接收模块在预设时间段内未收到唤醒确认帧，则向所述第二网络设备发送唤醒失败指示信息，所述唤醒失败指示信息用于指示所述第三网络设备的MR未被唤醒。
在上述实施例中，所述接收模块1601还用于接收所述第二网络设备发送的重传请求，所述重传请求用于请求向所述第三网络设备的WUR发送唤醒请求信息。
在上述实施例中，所述唤醒请求指示信息承载在媒体接入控制MAC帧，所述MAC帧中包含所述唤醒请求指示信息以及需要转发给第三网络设备的信息；
所述发送模块向所述第三网络设备的WUR发送的所述唤醒请求信息中包含所述需要转发给第三网络设备的信息。
在上述实施例中，所述唤醒请求指示信息承载在所述第二网络设备发送的聚合帧， 所述聚合帧中包含第一类型帧和第二类型帧，所述第一类型帧中包含所述唤醒请求指示信息；所述第二类型帧中包含需要转发给所述第三网络设备的信息；
所述唤醒请求信息中包含所述需要转发给所述第三网络设备的信息。
在上述实施例中，所述接收模块1601还用于接收所述第二网络设备发送的所述第三网络设备的WUR所处的频段或者信道；
所述发送模块1602还用于通过所述WUR所处的频段或者信道向所述第三网络设备的WUR发送所述唤醒请求信息。
在上述实施例中，所述发送模块1602还用于向所述第二网络设备发送所述第三网络设备的WUR开启窗口的时间。
图16所示装置实施例对应地可用于执行上述各方法实施例中第一网络设备执行的各步骤，其实现原理和技术效果类似，此处不再赘述。
图17为本申请另一实施例的数据传输装置的结构示意图，本实施例的装置包括发送模块1701和接收模块1702，其中，发送模块1701用于向第一网络设备发送唤醒请求指示信息，唤醒请求指示信息用于指示向第三网络设备的唤醒接收机WUR发送唤醒请求信息，唤醒请求信息用于请求唤醒第三网络设备的主收发机MR；接收模块1702用于接收唤醒确认帧，唤醒确认帧用于指示第三网络设备的MR已被唤醒。
在上述实施例中，接收模块1702具体用于接收第一网络设备发送的唤醒确认帧；
或者，
接收模块1702具体用于接收第三网络设备发送的唤醒确认帧。
在上述实施例中，发送模块1701还用于向第一网络设备发送第三网络设备的WUR所处的频段或者信道。
在上述实施例中，接收模块1702具体用于接收第三网络设备发送的多用户唤醒确认帧，多用户唤醒确认帧用于指示第三网络设备的MR已被唤醒，多用户唤醒确认帧中包含第三网络设备的标识和第一网络设备的标识。
在上述实施例中，接收模块1702还用于接收第一网络设备发送的唤醒请求信息，唤醒请求信息用于请求唤醒第二网络设备的MR。
在上述实施例中，唤醒请求指示信息承载在媒体接入控制MAC帧，MAC帧中包含唤醒请求指示信息以及需要第一网络设备转发给第三网络设备的信息。
在上述实施例中，唤醒请求指示信息承载在聚合帧，聚合帧中包含第一类型帧和第二类型帧，第一类型帧中包含唤醒请求指示信息；第二类型帧中包含需要第一网络设备转发给第三网络设备的信息。
在上述实施例中，接收模块1702还用于接收第一网络设备发送的唤醒失败指示信息，唤醒失败指示信息用于指示第三网络设备的MR未被唤醒。
在上述实施例中，发送模块1701还用于向第一网络设备发送重传请求，重传请求用于请求第一网络设备向第三网络设备的WUR发送唤醒请求信息。
在上述实施例中，还包括：处理模块1703处理模块还用于确定第三网络设备的WUR开启窗口时间。
在上述实施例中，处理模块还用于获取第三网络设备的WUR开启窗口时间。
在上述实施例中，处理模块1703控制接收模块具体用于接收第一网络设备发送的 第三网络设备的WUR开启窗口时间。
在上述实施例中，处理模块1703具体用于与第三网络设备协商第三网络设备的WUR开启窗口的时间。
图17所示装置实施例对应地可用于执行上述各方法实施例中第二网络设备执行的各步骤，其实现原理和技术效果类似，此处不再赘述。
图18为本申请再一个实施例的数据传输装置结构示意图，本实施例的装置部署在第三设备中，本实施例的装置包括接收模块1801和处理模块1802，其中，接收模块1801用于接收第一网络设备发送的唤醒请求信息，唤醒请求信息为第一网络设备接收到第二网络设备发送的唤醒请求指示信息之后生成的，唤醒请求指示信息用于指示第一网络设备向第三网络设备的唤醒接收机WUR发送唤醒请求信息，唤醒请求信息用于请求唤醒第三网络设备的主收发机MR；处理模块1802用于第三网络设备唤醒MR。
在上述实施例中，还包括：
发送模块1803用于向第一网络设备或者第二网络设备发送唤醒确认帧，唤醒确认帧用于指示第三网络设备的MR已被唤醒。
在上述实施例中，处理模块1802还用于与第二网络设备协商第三网络设备的WUR开启窗口时间。
图18所示装置实施例对应地可用于执行上述各方法实施例中第三网络设备执行的各步骤，其实现原理和技术效果类似，此处不再赘述。
图19为本申请一个实施例数据传输装置的结构示意图，本实施例的装置部署在第一网络设备中，本实施例的装置包括：接收器1901和发送器1902，其中，接收器1901用于接收第二网络设备发送的唤醒请求指示信息，唤醒请求指示信息用于指示向第三网络设备的唤醒接收机WUR发送唤醒请求信息；发送器1902用于向第三网络设备的WUR发送唤醒请求信息，唤醒请求信息用于请求唤醒第三网络设备的主收发机MR。
在上述实施例中，接收器1901还用于接收第三网络设备发送的唤醒确认帧，唤醒确认帧用于指示第三网络设备的MR已被唤醒。
在上述实施例中，发送器1902还用于向第二网络设备发送唤醒确认帧。
在上述实施例中，接收器1901还用于接收第三网络设备发送的多用户唤醒确认帧，多用户唤醒确认帧用于指示第三网络设备的MR已被唤醒，多用户唤醒确认帧中包含第一网络设备的标识和第二网络设备的标识。
在上述实施例中，发送器1902还用于向第二网络设备的唤醒接收机WUR发送唤醒请求信息，唤醒请求信息用于请求唤醒第二网络设备的主收发机MR。
在上述实施例中，发送器1902还用于若接收器在预设时间段内未收到唤醒确认帧，则向第二网络设备发送唤醒失败指示信息，唤醒失败指示信息用于指示第三网络设备的MR未被唤醒。
在上述实施例中，接收器1901还用于接收第二网络设备发送的重传请求，重传请求用于请求向第三网络设备的WUR发送唤醒请求信息。
在上述实施例中，唤醒请求指示信息承载在媒体接入控制MAC帧，MAC帧中包含唤醒请求指示信息以及需要转发给第三网络设备的信息；
发送器1902向第三网络设备的WUR发送的唤醒请求信息中包含需要转发给第三网络设备的信息。
在上述实施例中，唤醒请求指示信息承载在第二网络设备发送的聚合帧，聚合帧中包含第一类型帧和第二类型帧，第一类型帧中包含唤醒请求指示信息；第二类型帧中包含需要转发给第三网络设备的信息；
唤醒请求信息中包含需要转发给第三网络设备的信息。
在上述实施例中，接收器1901还用于接收第二网络设备发送的第三网络设备的WUR所处的频段或者信道；
发送器1902还用于通过WUR所处的频段或者信道向第三网络设备的WUR发送唤醒请求信息。
在上述实施例中，发送器1902还用于向第二网络设备发送第三网络设备的WUR开启窗口的时间。
图19所示装置实施例对应地可用于执行上述各方法实施例中第一网络设备执行的各步骤，其实现原理和技术效果类似，此处不再赘述。
图20为本申请另一实施例的数据传输装置的结构示意图，本实施例的装置包括发送器2001和接收器2002，其中，发送器2001用于向第一网络设备发送唤醒请求指示信息，唤醒请求指示信息用于指示向第三网络设备的唤醒接收机WUR发送唤醒请求信息，唤醒请求信息用于请求唤醒第三网络设备的主收发机MR；接收器2002用于接收唤醒确认帧，唤醒确认帧用于指示第三网络设备的MR已被唤醒。
在上述实施例中，接收器2002具体用于接收第一网络设备发送的唤醒确认帧；
或者，
接收器2002具体用于接收第三网络设备发送的唤醒确认帧。
在上述实施例中，发送器2001还用于向第一网络设备发送第三网络设备的WUR所处的频段或者信道。
在上述实施例中，接收器2002具体用于接收第三网络设备发送的多用户唤醒确认帧，多用户唤醒确认帧用于指示第三网络设备的MR已被唤醒，多用户唤醒确认帧中包含第三网络设备的标识和第一网络设备的标识。
在上述实施例中，接收器2002还用于接收第一网络设备发送的唤醒请求信息，唤醒请求信息用于请求唤醒第二网络设备的MR。
在上述实施例中，唤醒请求指示信息承载在媒体接入控制MAC帧，MAC帧中包含唤醒请求指示信息以及需要第一网络设备转发给第三网络设备的信息。
在上述实施例中，唤醒请求指示信息承载在聚合帧，聚合帧中包含第一类型帧和第二类型帧，第一类型帧中包含唤醒请求指示信息；第二类型帧中包含需要第一网络设备转发给第三网络设备的信息。
在上述实施例中，接收器2002还用于接收第一网络设备发送的唤醒失败指示信息，唤醒失败指示信息用于指示第三网络设备的MR未被唤醒。
在上述实施例中，发送器2001还用于向第一网络设备发送重传请求，重传请求用于请求第一网络设备向第三网络设备的WUR发送唤醒请求信息。
在上述实施例中，还包括：处理器2003处理器还用于确定第三网络设备的WUR 开启窗口时间。
在上述实施例中，处理器2003还用于获取第三网络设备的WUR开启窗口时间。
在上述实施例中，处理器2003控制接收器具体用于接收第一网络设备发送的第三网络设备的WUR开启窗口时间。
在上述实施例中，处理器具体用于与第三网络设备协商第三网络设备的WUR开启窗口的时间。
图20所示装置实施例对应地可用于执行上述各方法实施例中第二网络设备执行的各步骤，其实现原理和技术效果类似，此处不再赘述。
图21为本申请又一实施例的数据传输装置的结构示意图，本实施例的装置部署在第三网络设备中，本实施例的装置包括：WUR2101和MR2102
WUR2101用于接收第一网络设备发送的唤醒请求信息，唤醒请求信息为第一网络设备接收到第二网络设备发送的唤醒请求指示信息之后生成的，唤醒请求指示信息用于指示第一网络设备向WUR2101发送唤醒请求信息，唤醒请求信息用于请求唤醒MR2102；
WUR2101用于唤醒MR2102。
在上述实施例中，MR2102用于向第一网络设备或者第二网络设备发送唤醒确认帧，唤醒确认帧用于指示第三网络设备的MR2102已被唤醒。
在上述实施例中，还包括：
处理器2103用于控制MR2102与第二网络设备协商所述第三网络设备的WUR2101开启窗口时间。
图21所示装置实施例对应地可用于执行上述各方法实施例中第三网络设备执行的各步骤，其实现原理和技术效果类似，此处不再赘述。

Claims (32)

  1. 一种数据传输方法，其特征在于，包括：
    第一网络设备接收第二网络设备发送的唤醒请求指示信息，所述唤醒请求指示信息用于指示向第三网络设备的唤醒接收机WUR发送唤醒请求信息；
    所述第一网络设备向所述第三网络设备的WUR发送所述唤醒请求信息，所述唤醒请求信息用于请求唤醒所述第三网络设备的主收发机MR。
  2. 根据权利要求1所述的方法，其特征在于，所述第一网络设备向所述第三网络设备的WUR发送所述唤醒请求信息之后，还包括：
    所述第一网络设备接收所述第三网络设备发送的唤醒确认帧，所述唤醒确认帧用于指示所述第三网络设备的MR已被唤醒。
  3. 根据权利要求2所述的方法，其特征在于，所述第一网络设备接收所述第三网络设备发送的唤醒确认帧之后，还包括：
    所述第一网络设备向所述第二网络设备发送所述唤醒确认帧。
  4. 根据权利要求1所述的方法，其特征在于，所述第一网络设备向所述第三网络设备的WUR发送所述唤醒请求信息之后，还包括：
    所述第一网络设备接收所述第三网络设备发送的多用户唤醒确认帧，所述多用户唤醒确认帧用于指示所述第三网络设备的MR已被唤醒，所述多用户唤醒确认帧中包含所述第一网络设备的标识和所述第二网络设备的标识。
  5. 根据权利要求3所述的方法，其特征在于，所述第一网络设备向所述第二网络设备发送所述唤醒确认帧之前，还包括：
    所述第一网络设备向所述第二网络设备的唤醒接收机WUR发送唤醒请求信息，所述唤醒请求信息用于请求唤醒所述第二网络设备的主收发机MR。
  6. 一种数据传输方法，其特征在于，包括：
    第二网络设备向第一网络设备发送唤醒请求指示信息，所述唤醒请求指示信息用于指示向第三网络设备的唤醒接收机WUR发送唤醒请求信息，所述唤醒请求信息用于请求唤醒所述第三网络设备的主收发机MR；
    所述第二网络设备接收唤醒确认帧，所述唤醒确认帧用于指示所述第三网络设备的MR已被唤醒。
  7. 根据权利要求6所述的方法，其特征在于，所述第二网络设备接收唤醒确认帧，包括：
    所述第二网络设备接收所述第一网络设备发送的所述唤醒确认帧；
    或者，
    所述第二网络设备接收所述第三网络设备发送的所述唤醒确认帧。
  8. 根据权利要求6或7所述的方法，其特征在于，还包括：
    所述第二网络设备向所述第一网络设备发送所述第三网络设备的WUR所处的频段或者信道。
  9. 根据权利要求6所述的方法，其特征在于，所述第二网络设备接收唤醒确认帧，包括：
    所述第二网络设备接收所述第三网络设备发送的多用户唤醒确认帧，所述多用户 唤醒确认帧用于指示所述第三网络设备的MR已被唤醒，所述多用户唤醒确认帧中包含所述第三网络设备的标识和所述第一网络设备的标识。
  10. 根据权利6-9任一项所述的方法，其特征在于，所述第二网络设备接收唤醒确认帧之前，还包括：
    所述第二网络设备的WUR接收所述第一网络设备发送的唤醒请求信息，所述唤醒请求信息用于请求唤醒所述第二网络设备的MR。
  11. 根据权利要求6-10任一项所述的方法，其特征在于，所述唤醒请求指示信息承载在媒体接入控制MAC帧，所述MAC帧中包含所述唤醒请求指示信息以及需要所述第一网络设备转发给第三网络设备的信息。
  12. 根据权利要求6-10任一项所述的方法，其特征在于，所述唤醒请求指示信息承载在聚合帧，所述聚合帧中包含所述第一类型帧和第二类型帧，所述第一类型帧中包含所述唤醒请求指示信息；所述第二类型帧中包含需要所述第一网络设备转发给所述第三网络设备的信息。
  13. 根据权利要求6-12任一项所述的方法，其特征在于，还包括：
    所述第二网络设备接收所述第一网络设备发送的唤醒失败指示信息，所述唤醒失败指示信息用于指示所述第三网络设备的MR未被唤醒。
  14. 根据权利要求13所述的方法，其特征在于，还包括：
    所述第二网络设备向所述第一网络设备发送重传请求，所述重传请求用于请求所述第一网络设备向所述第三网络设备的WUR发送唤醒请求信息。
  15. 一种数据传输方法，其特征在于，包括：
    第三网络设备接收第一网络设备发送的唤醒请求信息，所述唤醒请求信息为所述第一网络设备接收到第二网络设备发送的唤醒请求指示信息之后生成的，所述唤醒请求指示信息用于指示所述第一网络设备向所述第三网络设备的唤醒接收机WUR发送所述唤醒请求信息，所述唤醒请求信息用于请求唤醒所述第三网络设备的主收发机MR；
    所述第三网络设备唤醒所述MR。
  16. 根据权利要求15所述的方法，其特征在于，所述第三网络设备唤醒所述MR之后，还包括：
    所述第三网络设备向第一网络设备或者所述第二网络设备发送唤醒确认帧，所述唤醒确认帧用于指示所述第三网络设备的MR已被唤醒。
  17. 一种数据传输装置，其特征在于，包括：
    接收器，用于接收第二网络设备发送的唤醒请求指示信息，所述唤醒请求指示信息用于指示向第三网络设备的唤醒接收机WUR发送唤醒请求信息；
    发送器，用于向所述第三网络设备的WUR发送所述唤醒请求信息，所述唤醒请求信息用于请求唤醒所述第三网络设备的主收发机MR。
  18. 根据权利要求17所述的装置，其特征在于，所述接收器还用于接收所述第三网络设备发送的唤醒确认帧，所述唤醒确认帧用于指示所述第三网络设备的MR已被唤醒。
  19. 根据权利要求18所述的装置，其特征在于，所述发送器还用于向所述第二网 络设备发送所述唤醒确认帧。
  20. 根据权利要求17所述的装置，其特征在于，所述接收器还用于接收所述第三网络设备发送的多用户唤醒确认帧，所述多用户唤醒确认帧用于指示所述第三网络设备的MR已被唤醒，所述多用户唤醒确认帧中包含所述第一网络设备的标识和所述第二网络设备的标识。
  21. 根据权利要求19所述的装置，其特征在于，所述发送器还用于向所述第二网络设备的唤醒接收机WUR发送唤醒请求信息，所述唤醒请求信息用于请求唤醒所述第二网络设备的主收发机MR。
  22. 一种数据传输装置，其特征在于，包括：
    发送器，用于向第一网络设备发送唤醒请求指示信息，所述唤醒请求指示信息用于指示向第三网络设备的唤醒接收机WUR发送唤醒请求信息，所述唤醒请求信息用于请求唤醒所述第三网络设备的主收发机MR；
    接收器，用于接收唤醒确认帧，所述唤醒确认帧用于指示所述第三网络设备的MR已被唤醒。
  23. 根据权利要求22所述的装置，其特征在于，所述接收器还用于接收所述第一网络设备发送的所述唤醒确认帧；
    或者，
    所述接收器还用于接收所述第三网络设备发送的所述唤醒确认帧。
  24. 根据权利要求22或23所述的装置，其特征在于，所述发送器还用于向所述第一网络设备发送所述第三网络设备的WUR所处的频段或者信道。
  25. 根据权利要求22所述的装置，其特征在于，所述接收器具体用于接收所述第三网络设备发送的多用户唤醒确认帧，所述多用户唤醒确认帧用于指示所述第三网络设备的MR已被唤醒，所述多用户唤醒确认帧中包含所述第三网络设备的标识和所述第一网络设备的标识。
  26. 根据权利22-25任一项所述的装置，其特征在于，所述接收器具体用于接收所述第一网络设备发送的唤醒请求信息，所述唤醒请求信息用于请求唤醒所述第二网络设备的MR。
  27. 根据权利要求22-26任一项所述的装置，其特征在于，所述唤醒请求指示信息承载在媒体接入控制MAC帧，所述MAC帧中包含所述唤醒请求指示信息以及需要所述第一网络设备转发给第三网络设备的信息。
  28. 根据权利要求22-26任一项所述的装置，其特征在于，所述唤醒请求指示信息承载在聚合帧，所述聚合帧中包含所述第一类型帧和第二类型帧，所述第一类型帧中包含所述唤醒请求指示信息；所述第二类型帧中包含需要所述第一网络设备转发给所述第三网络设备的信息。
  29. 根据权利要求22-28任一项所述的装置，其特征在于，所述接收器还用于接收所述第一网络设备发送的唤醒失败指示信息，所述唤醒失败指示信息用于指示所述第三网络设备的MR未被唤醒。
  30. 根据权利要求29所述的装置，其特征在于，所述发送器还用于向所述第一网络设备发送重传请求，所述重传请求用于请求所述第一网络设备向所述第三网络设备 的WUR发送唤醒请求信息。
  31. 一种数据传输装置，其特征在于，包括：
    唤醒接收机WUR和主收发机MR，
    所述WUR，用于接收第一网络设备发送的唤醒请求信息，所述唤醒请求信息为所述第一网络设备接收到第二网络设备发送的唤醒请求指示信息之后生成的，所述唤醒请求指示信息用于指示所述第一网络设备向所述WUR发送所述唤醒请求信息，所述唤醒请求信息用于请求唤醒所述MR；
    所述WUR，用于唤醒所述MR。
  32. 根据权利要求31所述的装置，其特征在于，所述MR用于向第一网络设备或者所述第二网络设备发送唤醒确认帧，所述唤醒确认帧用于指示所述第三网络设备的MR已被唤醒。
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