CN108377539A

CN108377539A - Data transmission method and device

Info

Publication number: CN108377539A
Application number: CN201611063187.5A
Authority: CN
Inventors: 于健; 李云波
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2016-11-28
Filing date: 2016-11-28
Publication date: 2018-08-07
Also published as: WO2018095197A1

Abstract

A kind of data transmission method of offer of the embodiment of the present invention and device, this method sends wake request to first network equipment by second network equipment and indicates information, to ask first network equipment to send wake request information to the WUR of the third network equipment, so that the WUP of the third network equipment is waken up its MR, realizes the data transmission of second network equipment and the third network equipment.To which the third network equipment reduces power consumption without frequently intercepting beacon (Beacon) frame.Second network equipment wakes up the third network equipment in time in the state of third network equipment long-time suspend mode by first network equipment, reduces the time delay waited for caused by third network equipment suspend mode.

Description

Data transmission method and device

Technical Field

The present invention relates to communications technologies, and in particular, to a data transmission method and apparatus.

Background

In a Wireless Fidelity (WiFi) network, a significant portion of the network equipment is wasted on channel listening when there is no received signal.

In the prior art, a Wake Up Receiver (WUR) and a master transceiver (Main Radio) are provided in a network device, where the power consumption of the WUR is much lower than that of the MR, which is about 1% of the MR. When there is no received signal, the MR enters a sleep state and the WUR is in an active state. When two network devices performing pairing need to perform data transmission, the two network devices performing pairing are as follows: station 1(Station 1, abbreviated as STA1) and Station 2(Station 2, abbreviated as STA2), wherein STA1 sends a wakeup data packet (WUP) to the WUR of STA2, wherein the WUP carries a wakeup frame so that the WUR of STA2 wakes up its MR, thereby implementing data transmission of STA1 and STA 2.

However, when the STA1 does not have the capability of transmitting WUPs, the MR of the STA2 cannot be woken up, and thus, the two network devices that are paired cannot perform data transmission.

Disclosure of Invention

Embodiments of the present invention provide a data transmission method and apparatus, so as to solve a problem in the prior art that when a certain network device does not have a capability of sending a WUP, two network devices cannot perform data transmission.

In one aspect, an embodiment of the present invention provides a data transmission method, an application scenario of which at least includes three network devices, where a first network device may communicate with a second network device and a third network, the first network device has a condition of sending a WUP to the third network device, the second network device and the third network device are paired network devices, the second network device and the third network device intend to perform data transmission, and the second network device does not have the condition of sending the WUP. The method comprises the following steps: the second network equipment sends awakening request indication information to the first network equipment; after receiving the wake-up request indication information sent by the second network device, the first network device sends wake-up request information to the WUR of the third network device, and the WUR of the third network device wakes up the MR of the third network device. Namely: the second network equipment without the WUP condition sends awakening request information to the WUR of the third network equipment through the first network equipment with the WUP condition, so that the MR of the third network equipment is awakened, and the second network equipment and the third network equipment perform data transmission.

In another aspect, an embodiment of the present invention provides a data transmission method, including:

the second network equipment sends awakening request indication information to the first network equipment, indicates the first network equipment to send awakening request information to the WUR of the third network equipment, and the first network equipment sends awakening request information to the WUR of the third network equipment to request the WUR of the third network equipment to awaken the MR of the third network equipment. After the MR of the third network device is woken up, the second network device confirms that the MR of the third network device is woken up by receiving the wake-up confirmation frame. Namely: the second network equipment without the WUP condition sends awakening request information to the WUR of the third network equipment through the first network equipment with the WUP condition, so that the MR of the third network equipment is awakened, and the second network equipment and the third network equipment perform data transmission.

the first network device sends the wakeup request information to the WUR of the third network device to request the WUR of the third network device to wake up the MR of the third network device. The WUR of the third network device wakes up its own MR. Namely: the second network equipment without the WUP condition sends awakening request information to the WUR of the third network equipment through the first network equipment with the WUP condition, so that the MR of the third network equipment is awakened, and the second network equipment and the third network equipment perform data transmission.

In another aspect, an embodiment of the present invention provides a data transmission apparatus, which is deployed in a first network device, and includes a receiving module and a sending module, wherein,

the second network equipment sends awakening request indication information to a receiving module of the first network equipment; after the receiving module of the first network device receives the wake-up request indication information sent by the second network device, the sending module of the first network device sends the wake-up request information to the WUR of the third network device, and the WUR of the third network device wakes up the MR of the third network device. Namely: the second network equipment without the WUP condition sends awakening request information to the WUR of the third network equipment through the first network equipment with the WUP condition, so that the MR of the third network equipment is awakened, and the second network equipment and the third network equipment perform data transmission.

In another aspect, an embodiment of the present invention provides a data transmission apparatus, where the apparatus is deployed in a second network device, and the apparatus includes: the device comprises a sending module and a receiving module, wherein the sending module of the second network equipment sends awakening request indication information to the first network equipment to indicate the first network equipment to send awakening request information to the WUR of the third network equipment, and the first network equipment sends awakening request information to the WUR of the third network equipment to request the WUR of the third network equipment to awaken the MR of the third network equipment. After the MR of the third network device is woken up, the receiving module of the second network device confirms that the MR of the third network device is woken up by receiving the wake-up confirmation frame. Namely: the second network equipment without the WUP condition sends awakening request information to the WUR of the third network equipment through the first network equipment with the WUP condition, so that the MR of the third network equipment is awakened, and the second network equipment and the third network equipment perform data transmission.

In another aspect, an embodiment of the present invention provides a data transmission apparatus, where the apparatus is deployed in a third network device, and the apparatus includes a WUR and a MR, and includes:

In another aspect, an embodiment of the present invention provides a data transmission apparatus, which is disposed in a first network device, and includes a receiver and a transmitter, wherein,

the second network equipment sends awakening request indication information to a receiver of the first network equipment; after the receiver of the first network device receives the wake-up request indication information sent by the second network device, the transmitter of the first network device sends the wake-up request information to the WUR of the third network device, and the WUR of the third network device wakes up its MR. Namely: the second network equipment without the WUP condition sends awakening request information to the WUR of the third network equipment through the first network equipment with the WUP condition, so that the MR of the third network equipment is awakened, and the second network equipment and the third network equipment perform data transmission.

In another aspect, an embodiment of the present invention provides a data transmission apparatus, where the apparatus is deployed in a second network device, and the apparatus includes: the device comprises a transmitter and a receiver, wherein the transmitter of the second network equipment transmits awakening request indication information to the first network equipment to indicate the first network equipment to transmit awakening request information to the WUR of the third network equipment, and the first network equipment transmits awakening request information to the WUR of the third network equipment to request the WUR of the third network equipment to awaken the MR of the third network equipment. After the MR of the third network device is woken up, the receiver of the second network device confirms that the MR of the third network device has been woken up by receiving the wake-up confirmation frame. Namely: the second network equipment without the WUP condition sends awakening request information to the WUR of the third network equipment through the first network equipment with the WUP condition, so that the MR of the third network equipment is awakened, and the second network equipment and the third network equipment perform data transmission.

Drawings

FIG. 1 is a schematic diagram of a scenario of an embodiment of the present invention;

FIG. 2 is a diagram illustrating a data transmission method according to an embodiment of the present invention;

FIG. 3 is a diagram illustrating a frame format of WUH frames according to an embodiment of the present invention;

FIG. 4 is a diagram illustrating a data transmission method according to an embodiment of the present invention;

FIG. 5 is a diagram illustrating a data transmission method according to an embodiment of the present invention;

FIG. 6 is a diagram illustrating a data transmission method according to an embodiment of the present invention;

FIG. 7 is a diagram illustrating a data transmission method according to another embodiment of the present invention;

FIG. 8 is a diagram illustrating a data transmission method according to another embodiment of the present invention;

FIG. 9 is a diagram showing a frame structure of HE-A-control according to the embodiment of the present invention;

FIG. 10 is a diagram illustrating a data transmission method according to another embodiment of the present invention;

FIG. 11 is a schematic diagram of TDLS transmission according to an embodiment of the present invention;

fig. 12 is a diagram of a possible frame structure of a WUP in accordance with an embodiment of the present invention;

fig. 13 is a diagram illustrating STA1 and STA2 negotiating the WUR open window time with each other in accordance with an embodiment of the present invention;

FIG. 14 is a schematic diagram of another exemplary embodiment of the present invention;

fig. 15 is a diagram illustrating a data transmission method according to another embodiment of the invention.

FIG. 16 is a schematic structural diagram of a data transmission apparatus according to an embodiment of the present invention;

fig. 17 is a schematic structural diagram of a data transmission device according to another embodiment of the present invention;

FIG. 18 is a schematic structural diagram of a data transmission apparatus according to yet another embodiment of the present invention;

FIG. 19 is a schematic structural diagram of a data transmission apparatus according to an embodiment of the present invention;

FIG. 20 is a schematic structural diagram of a data transmission apparatus according to another embodiment of the present invention;

fig. 21 is a schematic structural diagram of a data transmission device according to yet another embodiment of the present invention.

Detailed Description

The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The technical solution of the present invention will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.

Fig. 1 is a schematic view of a scenario according to an embodiment of the present invention, as shown in fig. 1, the scenario includes three network devices, where a first network device may communicate with a second network device and a third network, the first network device has a condition of sending a WUP to the third network device, 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 of sending the WUP. Optionally, the first network device is further conditioned to send a WUP to the second network device.

In fig. 1 and the following embodiments, the first network device is an AP, the second network device is STA1, and the third network device is STA2, where STA1 and STA2 are paired STAs in a plurality of STAs associated with the AP.

Fig. 2 is a schematic diagram of a data transmission method according to an embodiment of the present invention, as shown in fig. 2, the method of the embodiment is as follows:

s201: STA1 sends a wake request indication message to the AP.

The wakeup request indication information indicates that wakeup request information is to be transmitted to the WUR of STA 2.

One possible implementation manner is as follows:

STA1 sends Wake Up Help (WUH for short) frame to AP, WUH frame is used to instruct AP to send WUP to WUR of STA2, wherein WUP includes Wake frame to make WUR of STA2 Wake Up MR of STA 2.

Fig. 3 is a schematic diagram of a possible frame format of a WUH frame, where fig. 3 is a frame format diagram of a WUH frame in an embodiment of the present invention, and a WUH frame includes a frame type indicator, a sending address, a destination address, a frame check sequence, and the like. Wherein the frame type indication indicates that the frame is an WUH frame. The transmission address is used to indicate the STA that transmits the frame, in this embodiment, STA1, and the destination address is used to indicate the destination STA that needs the AP to help wake up, in this embodiment, STA 2. The sending address and the destination address may be Association ID of the STA or Media Access Control (MAC) address of the STA, which is not limited in the embodiments of the present invention.

After receiving the WUH frame transmitted by the STA1, the AP performs S203.

S203: the AP sends a wake request message to the WUR of STA 2.

In one possible implementation, the AP sends a WUP to the WUR of STA2, and after the WUR of STA2 receives the WUP, wakes up its MR.

S205: STA1 receives the wakeup confirm frame.

Wherein the wakeup confirm frame is used to indicate that the MR of STA2 is awake. The wakeup confirm frame may be an Acknowledge frame (ACK), a wakeup Poll frame (PS-Poll), or other frames capable of indicating that the MR has woken up, which is not limited in the embodiments of the present invention.

The manner in which STA1 receives the wakeup confirm frame includes, but is not limited to, the following several possible implementations:

one possible implementation is shown in fig. 4:

s2051 a: STA2 sends a wakeup confirm frame to the AP.

Unnecessary retransmissions of WUPs by the AP are avoided by sending a wakeup confirm frame to the AP to let the AP know that the MR of STA2 is awake.

S2052 a: the AP sends a wakeup confirm frame to STA 1.

Another possible implementation is shown in fig. 5:

s205 b: STA2 sends a wakeup confirm frame to STA 1.

Yet another possible implementation is shown in fig. 6:

s205 c: STA2 sends a multiuser wakeup confirm frame.

Wherein the multiuser wake-up acknowledgement frame may be a broadcast frame. The multi-user wakeup confirm frame contains the identification of AP and STA1, and informs both AP and STA1 that it has woken up the MR of STA2 via a MAC frame. Therefore, the overhead caused by the physical layer preamble and the MAC frame header is reduced.

In a possible implementation shown in fig. 5 or fig. 6, STA2 needs to know the identification information of STA1 in order to send a wakeup confirm frame to STA 1; the identification information of STA1 may be address information or other information capable of identifying STA 1.

Alternatively, STA2 may learn from the WUP that the AP sends to STA2, including but not limited to the following:

in one possible implementation manner, the WUP carries identification information of the STA1, for example, the WUP carries a source address, which is an address of the STA 1. One possible implementation of WUP is shown in fig. 12, where fig. 12 is a schematic diagram of a possible frame structure of WUP. The WUP structure comprises one or more of a frame type Indication, a Source Address (SA for short) and a Behavior Indication (Action/Behavior Indication).

Wherein the frame type indication is used for indicating the type of the frame and the purpose thereof, and for indicating the MR which helps one STA in a DLS/TDLS pair to wake up the other STA. The source address indicates the requesting sender of the WUP, which is the AP and the requesting sender is STA1, and thus the source address is the address of STA 1. STA2 determines from the source address that the sender of the request is STA 1. The behavior indication is used to indicate the behavior of STA2 after MR wake-up. For example: STA2 may be instructed to reply to the wakeup confirm frame immediately after waking up. It may also instruct STA2 to wait to receive Beacon after waking up. May also instruct STA2 to wake up and send a wake up indication to STA 1. Other customized behaviors may also be performed after STA2 is instructed to wake up, and embodiments of the present invention are not limited in this respect.

In another possible implementation, unlike the previous possible implementation, the WUP does not carry a source address, STA2 knows the frame according to the frame type indication in the WUP to indicate that it helps one STA in the DLS/TDLS pair to wake up the MR of another STA, and STA2 knows in advance the identification information of another STA (i.e., STA1) with which the DLS/TDLS pair is performed.

S207: STA1 performs data transmission with STA 2.

In this embodiment, STA1 sends wake-up request indication information to AP to request AP to send wake-up request information to WUR of STA2, so that WUP of STA2 wakes up MR of STA2, and data transmission between STA1 and STA2 is realized. Thus, the STA2 need not listen frequently for Beacon (Beacon) frames, reducing power consumption. STA1 wakes up STA2 in time by the AP in the state where STA2 has been sleeping for a long time, reducing the delay caused by waiting for STA2 to sleep.

In the embodiment shown in fig. 2, if the MR that wakes up the STA2 fails, one possible implementation is: STA1 then retransmits WUH to the AP requesting the AP to resend the WUP to the WUR of STA2 to wake up the MR of STA 2. Another possible implementation: STA1 enters a sleep state and after the MR of STA2 wakes up, it sends a wake request message to the WUR of STA1 via the AP to wake up the MR of STA 1.

The way in which the STA1 determines that the MR failed to wake up the STA2 includes, but is not limited to, the following: one possible implementation: the AP does not receive the wakeup confirm frame transmitted by the STA2 within the preset time period, and transmits wakeup failure indication information to the STA1, so that the STA1 determines that the MR of the wakeup STA2 fails. Another possible implementation: STA1 does not receive the wakeup confirm frame sent by AP or STA2 within a preset time, and determines that the MR to wake up STA2 fails.

Fig. 7 is a schematic diagram of a data transmission method according to another embodiment of the present invention, as shown in fig. 7, the method of 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, a control frame, and the like.

The MAC frame includes wakeup request indication information for instructing the AP to transmit WUP to the WUR of STA2 to wake up the MR of STA2 and information to be forwarded to STA 2.

For example: STA1 transmits a MAC frame to the AP that contains some or all of the data STA1 wants to transmit to STA 2. STA1 wakes up the MR of STA2 by setting the destination address of the MAC frame to STA2 to instruct the AP to send a WUP to the WUR of STA 2.

Alternatively, if the STA1 instructs the AP to send an acknowledgement frame after receiving the MAC frame, the AP performs S703.

S703: the AP sends an acknowledgement frame to STA 1.

The acknowledgement frame is used to indicate that the AP has correctly received the MAC frame sent by STA 1.

S705: the AP sends WUPs to the WURs of STA 2.

The execution sequence of steps S703 and S705 is not limited.

S707: after the WUR of STA2 receives the WUP, it wakes up the MR of STA 2.

After waking up the MR of the STA2, S709 is performed.

S709: STA2 sends a wakeup confirm frame to the AP.

The wakeup confirm frame is used to indicate that the MR of STA2 is awake.

S711: the AP sends to STA2 information in the MAC frame that needs to be forwarded to STA 2.

S713: STA2 sends an acknowledgement frame to the AP.

The acknowledgement frame is used to indicate that STA2 has correctly received the information that needs to be forwarded to STA2 in the MAC frame sent by the AP.

If the AP has forwarded all the information that needs to be forwarded to STA2 in the MAC frame received from STA1 to STA2, S715 is performed.

S715: the AP transmits data transmission completion indication information to the STA 2.

The data transmission completion indication information is used to indicate that the data transmission from the AP to the STA2 has been completed.

S717: the AP or STA2 sends a wakeup confirm frame to STA 1.

Wherein the wakeup confirm frame is used to indicate that the MR of STA2 is awake.

S719: STA1 and STA2 perform data transmission.

In this embodiment, STA1 sends a MAC frame to the AP, where the MAC frame carries wake-up request indication information to request the AP to send a WUP to the WUR of STA2, so that the WUP of STA2 wakes up the MR of STA2, and thus, STA2 does not need to frequently listen to a Beacon (Beacon) frame, thereby reducing power consumption. STA1 wakes up STA2 in time by the AP in the state where STA2 has been sleeping for a long time, reducing the delay caused by waiting for STA2 to sleep.

In the embodiment shown in fig. 7, if the MR that wakes up the STA2 fails, one possible implementation is: STA1 then retransmits the MAC frame to the AP requesting the AP to resend the WUP to the WUR of STA2 to wake up STA 2. Another possible implementation: STA1 enters sleep state and wakes up STA1 through the AP after MR wake-up of STA 2.

For the way that the STA1 determines that the MR that wakes up the STA2 fails, reference may be made to the detailed description of the foregoing embodiments, which are not repeated herein.

Fig. 8 is a schematic diagram of a data transmission method according to another embodiment of the present invention, as shown in fig. 8, the method of the present 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, a control frame, and the like. For example: a release TDLS frame (TDLS tar down frame) or a TDLS per traffic indication frame (TDLS peer traffic indication frame). The former is used for link of STA1 and STA2 to remove TDLS; the latter is for STA1 to report its own need for transmission traffic to STA 2.

The MAC frame includes wakeup request indication information and information to be forwarded to STA2, where the wakeup request indication information is used to indicate the AP to send a WUP to the WUR of STA2, and the WUP carries the information to be forwarded to STA2 in the MAC frame. Namely: the AP may carry information in the MAC that needs to be forwarded to STA2 via the WUP sent to STA 2's WUR.

Alternatively, if the STA1 instructs the AP to transmit an acknowledgement frame after receiving the MAC frame, the AP performs S803.

S803: the AP sends an acknowledgement frame to STA 1.

S805: the AP sends WUPs to the WURs of STA 2.

The WUP carries information in the MAC frame that needs to be forwarded to STA 2.

Here, the execution order of the steps of S803 and S805 is not limited.

In this embodiment, a MAC frame is sent to the AP by the STA1, the MAC frame includes wakeup request indication information and information to be forwarded to the STA2, the wakeup request indication information is used to indicate the AP to send a WUP to the WUR of the STA2, and the WUP carries information to be forwarded to the STA2 in the MAC frame, the AP sends a WUP to the WUR of the STA2, and the WUP carries information to be forwarded to the STA2 in the MAC frame, so that the AP forwards data of the STA1 to the STA2 by the WUP without waking up the MR of the STA 2.

Optionally, in the embodiment shown in fig. 8, the WUR of STA2 receives the information that needs to be forwarded to STA2 in the MAC frame sent by STA1 and included in the WUP, and may actively wake up the MR of STA2 and send a wake-up confirmation frame to STA1, so that STA1 and STA2 perform data transmission. The wake-up request indication information may be carried in a MAC frame header of a corresponding MAC frame, for example, by a High Throughput Control (HTC), the Control ID in a High efficiency aggregated Control (HE-a-Control) variant represents the indication information, the frame structure of the HE-a-Control is shown in fig. 9, and the Control information carries a destination address to indicate a destination STA that the STA desires to wake up, such as the STA2 in the above process. Since the corresponding MAC frame already carries the sending address, the HTC does not need to add the sending address.

Fig. 10 is a schematic diagram of a data transmission method according to another embodiment of the present invention, as shown in fig. 10, the method of the present embodiment is as follows:

s1001: STA1 sends an aggregate frame to the AP.

Wherein the aggregate frame comprises: the first type frame comprises awakening request indication information, and the second type frame comprises information which needs to be forwarded to third network equipment. The first type frame may be an WUH frame to instruct the AP to send WUPs to the WURs of STA2 to wake up the MR of STA 2. The second type frame may be any one of a data frame, a management frame, a control frame, or the like.

Alternatively, if the STA1 instructs the AP to transmit an acknowledgement frame after receiving the MAC frame, the AP performs S1003.

S1003: the AP sends an acknowledgement frame to STA 1.

The acknowledgement frame is a Block Acknowledgement (BA), and the acknowledgement frame is used to indicate that the AP has correctly received the aggregation frame sent by the STA 1.

S1005: the AP sends WUPs to the WURs of STA 2.

The execution order of steps S1003 and S1005 is not limited.

S1007～S1009。

For detailed descriptions of S1007 to S1019, reference is made to S707 to S719, which are not described herein again.

In this embodiment, an aggregation frame is sent to the AP by the STA1, where the aggregation frame includes a first type frame and a second type frame, where the first type frame includes wakeup request indication information, the second type frame includes information that needs to be forwarded to the STA2, and the AP is instructed by the wakeup request indication information to send a WUP to the WUR of the STA2, so as to wake up the MR of the STA 2. Thus, the STA2 need not listen frequently for Beacon (Beacon) frames, reducing power consumption. STA1 wakes up STA2 in time by the AP in the state where STA2 has been sleeping for a long time, reducing the delay caused by waiting for STA2 to sleep.

In the embodiment shown in fig. 10, if the AP receives only the first type frame, and fails to receive the second type frame or only successfully receives the partial information in the second type frame, STA1 sends the unsuccessfully received second type frame or the partial information of the second type frame to STA2 after STA1 determines that the MR of STA2 has woken up.

When an AP establishes a Basic Service Set (BSS), it determines a channel as a main channel, and when the AP performs data transmission with STAs, the AP communicates with the main channel or a wider channel including the main channel. In a Direct Link Setup (TDLS) scenario, TDLS provides a mechanism to enable two paired STAs to perform Off-Channel TDLS transmission, that is, select a non-primary Channel as a temporary primary Channel for TDLS transmission, and perform data transmission, as shown in fig. 11, where fig. 11 is a TDLS transmission diagram in the embodiment of the present invention.

When two paired STAs (e.g., STA1 and STA2) perform out-of-channel TDLS transmission, then out of control of the AP. The switch states and the channel on which it is located for the WURs of STA1 and STA2 may also be out of control of the AP. In this scenario, based on the above embodiments, when STA1 requests the AP to wake up STA2, it needs to send the frequency Band (Band) or Channel (Channel) where the WUR of STA2 is located to the AP. The AP transmits WUPs to the WUR of STA2 in the frequency band or channel in which the WUR of STA2 is located. After STA2 wakes up the MR, STA2 may send a wake-up confirm frame over the primary channel or the temporary primary channel, where, in one possible scenario, STA2 switches to the primary channel and sends a wake-up confirm frame to the AP; another possible scenario is where STA2 transmits a wakeup confirm frame on the temporary channel with STA1, the AP switches to the temporary primary channel for STA2 and STA1, and receives the wakeup confirm frame transmitted by STA 2. STA2 may send a wakeup confirm frame through the main channel or the temporary main channel, where, in one possible case, STA2 switches to the main channel and sends the wakeup confirm frame to the AP, the AP sends the wakeup confirm frame to STA1 on the main channel, and STA1 switches to the main channel and receives the wakeup confirm frame; another possible scenario is where STA2 transmits a wakeup confirm frame on the temporary channel with STA1 and STA1 receives the wakeup confirm frame transmitted by STA2 on the temporary primary channel.

When STA1 does not know the on state of the WUR and MR of STA2, but the AP knows the on state of the WUR and MR of STA2, after the AP receives WUH frames transmitted by STA1, the process proceeds according to the following several cases:

one of the situations is: if the MR of STA2 is in the on state, the AP sends a wake up confirm frame directly to STA1, which informs that the MR of STA2 has woken up.

In another case: if the MR of STA2 is in the off state and the WUR is in the on state, the steps of the above embodiments are performed.

In yet another case: if both the MR and WUR of STA2 are in the off state, the AP sends a wake-up failure indication to STA 1. STA1 is optionally informed that the MR and/or WUR of STA2 is at an open window time, so that STA1 transmits WUH frames to the AP at a point in time within the open window.

In this embodiment, when the AP knows the on states of the WUR and MR of the STA2, the AP may directly feed back a wakeup confirm frame or a wakeup failure indication to the STA1, thereby avoiding unnecessary wakeup steps, reducing time delay, and saving power consumption.

In the above embodiments, STA1 may determine that the WUR of STA2 is in the on state before sending WUH or other MR to the AP requesting the AP to help wake STA 2.

STA1 knows the on state of STA 2's WUR including but not limited to the following several possible implementations:

one possible implementation manner is as follows: STA1 and STA2 negotiate the WUR open window time with each other, 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, and the WUR open window time for the proposed STA2 is set to the first window interval.

Among them, STA1 may send a request frame to establish the WUR open window time directly to STA 2. Alternatively, STA1 may first send a request frame to the AP to establish the WUR open window time, which the AP forwards to STA 2. The embodiments of the present invention are not limited thereto.

S1303: STA2 sends a response frame to STA1 for the WUR open window time.

Wherein the response frame is used to indicate whether STA2 agrees to set the first window interval to the WUR open window time of STA 2. And if not, carrying a second window interval in the response frame. A first window interval for suggesting WUR on window time for STA2 is set to a second window interval.

Among them, STA2 may send a response frame of WUR open window time directly to STA 1. Or may be sent to the AP first and forward the response frame to STA1 through the AP.

If the response frame includes the second window interval, step S1305 is further included.

S1305: STA1 sends a WUR open window time confirmation frame to STA2, feeding back whether the WUR open window time was eventually established successfully.

Another possible implementation:

STA1 and STA2 inform each other of their WUR open window times.

Such as: STA1 sends the WUR open window time of STA1 directly to STA 2. Alternatively, STA1 sends STA1 WUR open window time to the AP, which forwards STA1 WUR open window time to STA 2.

STA2 sends the WUR open window time of STA2 directly to STA 1. Alternatively, STA2 sends STA2 WUR open window time to the AP, which forwards STA2 WUR open window time to STA 1.

Another possible implementation manner is as follows:

the AP allocates the same WUR open window time to STA1 and STA2, and STA1 can know the WUR open window time of STA2 according to its SUR open window.

In this embodiment, STA1 knows the WUR open window time of STA2 in advance, and determines whether to request the AP to wake up the MR of STA2 according to the WUR open window time, so that the WUR of STA2 does not need to be always on, but only needs to be on within the WUR open window time, thereby further saving power consumption.

In the above embodiments, after STA1 transmits WUH to the AP, STA1 optionally enters a sleep state, and the AP transmits WUP to STA1 to wake up the MR of STA1 before receiving the wake-up confirm frame transmitted by STA2 or the AP. Thus, power consumption is further saved.

If the AP does not wake up the MR of STA2, one possible implementation: the AP sends a WUP to STA1, which carries a wake-up failure indication indicating that the MR of STA2 is not awake. Another possible implementation: the AP sends a WUP to STA1, the WUP to wake up the MR of STA1, and the AP sends a wake-up failure indication to the MR of STA1 indicating that the MR of STA2 is not awake.

Fig. 14 is a schematic view of another scenario according to an embodiment of the present invention, in which a first network device is taken as a relay device, a second network device is taken as an AP, and an STA3 of a third network device is taken as an example. Fig. 15 is a diagram illustrating a data transmission method according to another embodiment of the invention.

S1501: the AP transmits wakeup request indication information to the relay device.

The wakeup request indication information is used to instruct the relay device to send wakeup request information to the WUR of the STA 3.

S1502: the relay device sends wake-up request information to the STA 3.

Wherein the wake request information is used to request to wake up the MR of the STA 3.

S1503: STA3 wakes up its MR.

S1504: the AP receives the wakeup confirm frame.

Wherein the wakeup confirm frame is used to indicate that the MR of STA3 is awake. The wakeup confirm frame may be an Acknowledge frame (ACK), a wakeup Poll frame (PS-Poll), or other frames capable of indicating that the MR has woken up, which is not limited in the embodiments of the present invention.

The manner in which the AP receives the wakeup confirm frame includes, but is not limited to, the following possible implementations:

one possible implementation manner is as follows:

s15051 a: the STA3 sends a wakeup confirm frame to the relay device.

By sending a wakeup confirm frame to the relay device so that the relay device knows that the MR of the STA3 is awake, unnecessary retransmission of wakeup request information by the relay device is avoided.

S15052 a: the relay device sends a wakeup confirm frame to the AP.

Another possible implementation:

s1505 b: STA3 sends a wakeup confirm frame to the AP.

Yet another possible implementation:

s1505 c: STA3 sends a multiuser wakeup confirm frame.

Wherein the multiuser wake-up acknowledgement frame may be a broadcast frame. The multi-user wakeup confirm frame contains the identities of the AP and the relay device, and informs the AP and the relay device that the MR of the STA3 has been woken up through one MAC frame. Therefore, the overhead caused by the physical layer preamble and the MAC frame header is reduced.

S1505: the AP communicates with STA 3.

Where AP and STA3 communications may be forwarded through the relay device.

In this embodiment, the AP sends the wake-up request indication information to the relay device to request the relay device to send the wake-up request information to the WUR of STA3, so that the WUP of STA3 wakes up the MR of STA3, thereby realizing data transmission between the AP and STA 3. Thus, the STA3 need not listen frequently for Beacon (Beacon) frames, reducing power consumption. The AP wakes up STA3 in time through the relay device in the state where STA3 sleeps for a long time, reducing the time delay caused by waiting for STA3 to sleep.

In the embodiment shown in fig. 15, if the MR that wakes up the STA3 fails, one possible implementation is: the AP retransmits the wake-up request indication information to the relay device to request the relay device to retransmit the wake-up request information to the WUR of the STA3 to wake up the MR of the STA 3. Another possible implementation: the AP communicates with other STAs.

The way in which the AP determines that the MR that wakes up the STA3 fails includes, but is not limited to, the following: one possible implementation: the relay device does not receive the wakeup confirm frame sent by the STA3 within the preset time period, and sends wakeup failure indication information to the AP, so that the AP determines that the MR which wakes up the STA3 fails. Another possible implementation: if the AP does not receive the wakeup confirm frame sent by the relay device or the STA3 within the preset time, it is determined that the MR waking up the STA3 fails.

Fig. 16 is a schematic structural diagram of a data transmission apparatus according to an embodiment of the present invention, where the apparatus of this embodiment is deployed in a first network device, and the apparatus of this embodiment includes: the network device comprises a receiving module 1601 and a sending module 1602, where the receiving module 1601 is configured to receive wake-up request indication information sent by a second network device, where the wake-up request indication information is used to indicate that wake-up request information is sent to a wake-up receiver WUR of a third network device; the sending module 1602 is configured to send the wake-up request information to the WUR of the third network device, where the wake-up request information is used to request to wake up the master transceiver MR of the third network device.

In the above embodiment, the receiving module 1601 is further configured to receive a wake-up ack frame sent by the third network device, where the wake-up ack frame is used to indicate that the MR of the third network device has been woken up.

In the above embodiment, the sending module 1602 is further configured to send the wake-up acknowledgement frame to the second network device.

In the above embodiment, the receiving module 1601 is further configured to receive a multi-user wake-up ack frame sent by the third network device, where the multi-user wake-up ack frame is used to indicate that the MR of the third network device has been woken up, and the multi-user wake-up ack frame includes an identifier of the first network device and an identifier of the second network device.

In the above embodiment, the sending module 1602 is further configured to send a wake-up request message to the wake-up receiver WUR of the second network device, where the wake-up request message is used to request to wake up the master transceiver MR of the second network device.

In the above embodiment, the sending module 1602 is further configured to send wakeup failure indication information to the second network device if the receiving module does not receive a wakeup confirm frame within a preset time period, where the wakeup failure indication information is used to indicate that the MR of the third network device is not woken up.

In the above embodiment, 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 wakeup request information to the WUR of the third network device.

In the above embodiment, the wake-up request indication information is carried in a MAC frame, where the MAC frame includes the wake-up request indication information and information that needs to be forwarded to a third network device;

the wakeup 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.

In the above embodiment, the wakeup request indication information is carried in an aggregation frame sent by the second network device, where the aggregation frame includes a first type frame and a second type frame, and the first type frame includes the wakeup request indication information; the second type frame comprises information which needs to be forwarded to the third network equipment;

the wake-up request message includes the message to be forwarded to the third network device.

In the above embodiment, the receiving module 1601 is further configured to receive a frequency band or a channel where the WUR of the third network device is located, where the frequency band or the channel is sent by the second network device;

the sending module 1602 is further configured to send the wake-up request message to the WUR of the third network device through the frequency band or channel where the WUR is located.

In the above embodiment, the sending module 1602 is further configured to send, to the second network device, the time of the WUR open window of the third network device.

The apparatus embodiment shown in fig. 16 may be correspondingly used to perform the steps performed by the first network device in the foregoing method embodiments, and the implementation principle and the technical effect are similar, which are not described herein again.

Fig. 17 is a schematic structural diagram of a data transmission apparatus according to another embodiment of the present invention, and the apparatus according to this embodiment includes a sending module 1701 and a receiving module 1702, where the sending module 1701 is configured to send wake-up request indication information to a first network device, the wake-up request indication information is used to indicate that wake-up request information is sent to a wake-up receiver WUR of a third network device, and the wake-up request information is used to request to wake up a host transceiver MR of the third network device; the receiving module 1702 is configured to receive a wake up confirmation frame, where the wake up confirmation frame is used to indicate that the MR of the third network device has been woken up.

In the above embodiment, the receiving module 1702 is specifically configured to receive a wakeup confirm frame sent by a first network device;

or,

the receiving module 1702 is specifically configured to receive a wake-up acknowledgement frame sent by a third network device.

In the above embodiment, the transmitting module 1701 is further configured to transmit, to the first network device, a frequency band or a channel in which the WUR of the third network device is located.

In the foregoing embodiment, the receiving module 1702 is specifically configured to receive a multi-user wake-up ack frame sent by the third network device, where the multi-user wake-up ack frame is used to indicate that an MR of the third network device has been woken up, and the multi-user wake-up ack frame includes an identifier of the third network device and an identifier of the first network device.

In the above embodiment, the receiving module 1702 is further configured to receive wake request information sent by the first network device, where the wake request information is used to request to wake up an MR of the second network device.

In the above embodiment, the wake-up request indication information is carried in a MAC frame, where the MAC frame includes the wake-up request indication information and information that the first network device needs to forward to the third network device.

In the above embodiment, the wakeup request indication information is carried in an aggregate frame, where the aggregate frame includes a first type frame and a second type frame, and the first type frame includes the wakeup request indication information; the second type frame includes information that the first network device needs to forward to the third network device.

In the above embodiment, the receiving module 1702 is further configured to receive wake-up failure indication information sent by the first network device, where the wake-up failure indication information is used to indicate that the MR of the third network device is not woken up.

In the above embodiment, 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 wakeup request information to the WUR of the third network device.

In the above embodiment, the method further includes: processing block 1703 the processing block is further configured to determine a WUR open window time for a third network device.

In the above embodiment, the processing module is further configured to obtain a WUR open window time of the third network device.

In the foregoing embodiment, the processing module 1703 controls the receiving module to specifically receive the WUR open window time of the third network device sent by the first network device.

In the foregoing embodiment, the processing module 1703 is specifically configured to negotiate a time of a WUR open window of a third network device with the third network device.

The apparatus embodiment shown in fig. 17 may be correspondingly used to perform the steps performed by the second network device in the foregoing method embodiments, and the implementation principle and the technical effect are similar, and 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 invention, the apparatus of this embodiment is deployed in a third device, and the apparatus of this embodiment includes a receiving module 1801 and a processing module 1802, where the receiving module 1801 is configured to receive wake-up request information sent by a first network device, the wake-up request information is generated after the first network device receives wake-up request indication information sent by a second network device, the wake-up request indication information is used to indicate the first network device to send wake-up request information to a wake-up receiver WUR of the third network device, and the wake-up request information is used to request to wake up a master transceiver MR of the third network device; the processing module 1802 is for a third network device to wake up the MR.

In the above embodiment, the method further includes:

the sending module 1803 is configured to send a wakeup confirm frame to the first network device or the second network device, where the wakeup confirm frame is used to indicate that the MR of the third network device is already woken up.

In the above embodiments, the processing module 1802 is further configured to negotiate a WUR open window time for a third network device with the second network device.

The apparatus embodiment shown in fig. 18 may be correspondingly used to perform the steps executed by the third network device in the foregoing method embodiments, and the implementation principle and the technical effect are similar, and are not described herein again.

Fig. 19 is a schematic structural diagram of a data transmission apparatus according to an embodiment of the present invention, where the apparatus of this embodiment is deployed in a first network device, and the apparatus of this embodiment includes: a receiver 1901 and a transmitter 1902, where the receiver 1901 is configured to receive wake-up request indication information sent by the second network device, and the wake-up request indication information is used to indicate that wake-up request information is sent to a wake-up receiver WUR of a third network device; the transmitter 1902 is configured to transmit wake-up request information to the WUR of the third network device, the wake-up request information being used to request to wake up the master transceiver MR of the third network device.

In the above embodiment, the receiver 1901 is further configured to receive a wake-up acknowledgement frame sent by the third network device, where the wake-up acknowledgement frame is used to indicate that the MR of the third network device has been woken up.

In the above embodiment, the transmitter 1902 is further configured to transmit a wake-up acknowledgement frame to the second network device.

In the above embodiment, the receiver 1901 is further configured to receive a multiple user wakeup acknowledgement frame sent by the third network device, where the multiple user wakeup acknowledgement frame is used to indicate that the MR of the third network device has been woken up, and the multiple user wakeup acknowledgement frame includes the identifier of the first network device and the identifier of the second network device.

In the above embodiment, the transmitter 1902 is further configured to transmit wake-up request information to the wake-up receiver WUR of the second network device, the wake-up request information being used to request to wake up the master transceiver MR of the second network device.

In the above embodiment, the transmitter 1902 is further configured to send wakeup failure indication information to the second network device if the receiver does not receive the wakeup confirm frame within the preset time period, where the wakeup failure indication information is used to indicate that the MR of the third network device is not woken up.

In the above embodiment, 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 wakeup request information to the WUR of the third network device.

In the above embodiment, the wake-up request indication information is carried in a MAC frame, where the MAC frame includes the wake-up request indication information and information that needs to be forwarded to the third network device;

the transmitter 1902 transmits wake-up request information to the WUR of the third network device, including information to be forwarded to the third network device.

In the above embodiment, the wakeup request indication information is carried in an aggregation frame sent by the second network device, where the aggregation frame includes a first type frame and a second type frame, and the first type frame includes the wakeup request indication information; the second type frame contains information to be forwarded to the third network device;

the wake-up request message includes information to be forwarded to the third network device.

In the above embodiment, the receiver 1901 is further configured to receive a frequency band or a channel where the WUR of the third network device is sent by the second network device;

the transmitter 1902 is also configured to transmit wake-up request information to a WUR of a third network device over a frequency band or channel in which the WUR is located.

In the above embodiments, the transmitter 1902 is further configured to transmit to the second network device a time of a WUR open window of the third network device.

The apparatus embodiment shown in fig. 19 may be correspondingly used to perform the steps performed by the first network device in the foregoing method embodiments, and the implementation principle and the technical effect are similar, which are not described herein again.

Fig. 20 is a schematic structural diagram of a data transmission apparatus according to another embodiment of the present invention, and the apparatus according to this embodiment includes a transmitter 2001 and a receiver 2002, where the transmitter 2001 is configured to transmit wake-up request indication information to a first network device, the wake-up request indication information is configured to indicate that wake-up request information is transmitted to a wake-up receiver WUR of a third network device, and the wake-up request information is configured to request to wake up a master transceiver MR of the third network device; the receiver 2002 is configured to receive a wake-up confirm frame, which indicates that the MR of the third network device has been woken up.

In the above embodiment, the receiver 2002 is specifically configured to receive a wake-up acknowledgement frame sent by a first network device;

or,

the receiver 2002 is specifically configured to receive a wake-up acknowledgement frame sent by a third network device.

In the above embodiments, the transmitter 2001 is also used to transmit, to the first network device, the frequency band or channel in which the WUR of the third network device is located.

In the foregoing embodiment, the receiver 2002 is specifically configured to receive a multiple user wakeup acknowledgement frame sent by the third network device, where the multiple user wakeup acknowledgement frame is used to indicate that the MR of the third network device is woken up, and the multiple user wakeup acknowledgement frame includes an identifier of the third network device and an identifier of the first network device.

In the above embodiment, the receiver 2002 is further configured to receive wake-up request information sent by the first network device, where the wake-up request information is used to request to wake up the MR of the second network device.

In the above embodiment, the receiver 2002 is further configured to receive 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 woken up.

In the above embodiments, the transmitter 2001 is further configured to transmit a retransmission request to the first network device, the retransmission request being used to request the first network device to transmit wake-up request information to the WUR of the third network device.

In the above embodiment, the method further includes: the processor 2003 is also configured to determine a WUR open window time for a third network device.

In the above embodiment, the processor 2003 is further configured to obtain a WUR open window time for the third network device.

In the above embodiments, 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.

In the above embodiment, the processor is specifically configured to negotiate a time for a WUR open window of the third network device with the third network device.

The apparatus embodiment shown in fig. 20 may be correspondingly used to perform the steps performed by the second network device in the foregoing method embodiments, and the implementation principle and the technical effect are similar, and are not described herein again.

Fig. 21 is a schematic structural diagram of a data transmission apparatus according to another embodiment of the present invention, where the apparatus of this embodiment is deployed in a third network device, and the apparatus of this embodiment includes: WUR2101 and MR2102

The WUR2101 is used for receiving wake-up request information sent by a first network device, the wake-up request information is generated after the first network device receives wake-up request indication information sent by a second network device, the wake-up request indication information is used for indicating the first network device to send wake-up request information to the WUR2101, and the wake-up request information is used for requesting to wake up the MR 2102;

WUR2101 is used to wake MR 2102.

In the above embodiment, the MR2102 is configured to send a wake up confirm frame to the first network device or the second network device, where the wake up confirm frame is used to indicate that the MR2102 of the third network device has been woken up.

In the above embodiment, the method further includes:

processor 2103 is configured to control MR2102 to negotiate WUR2101 open window time for the third network device with the second network device.

The apparatus embodiment shown in fig. 21 may be correspondingly used to perform the steps executed by the third network device in the foregoing method embodiments, and the implementation principle and the technical effect are similar, which are not described herein again.

Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method of data transmission, comprising:

the method comprises the steps that a first network device receives awakening request indication information sent by a second network device, wherein the awakening request indication information is used for indicating that awakening request information is sent to an awakening receiver WUR of a third network device;

and the first network equipment sends the awakening request information to the WUR of the third network equipment, wherein the awakening request information is used for requesting to awaken the main transceiver MR of the third network equipment.

2. The method of claim 1, wherein after the first network device sends the wake request message to the WUR of the third network device, further comprising:

and the first network device receives a wakeup acknowledgement frame sent by the third network device, wherein the wakeup acknowledgement frame is used for indicating that the MR of the third network device is already woken up.

3. The method of claim 2, wherein after the first network device receives the wake-up acknowledgement frame sent by the third network device, further comprising:

and the first network equipment sends the awakening confirmation frame to the second network equipment.

4. The method of claim 1, wherein after the first network device sends the wake request message to the WUR of the third network device, further comprising:

the first network device receives 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 an identifier of the first network device and an identifier of the second network device.

5. The method of claim 3, wherein before the first network device sends the wakeup confirm frame to the second network device, further comprising:

the first network device sends awakening request information to an awakening receiver WUR of the second network device, wherein the awakening request information is used for requesting to awaken a main transceiver MR of the second network device.

6. A method of data transmission, comprising:

the method comprises the steps that a second network device sends awakening request indication information to a first network device, wherein the awakening request indication information is used for indicating that awakening request information is sent to an awakening receiver WUR of a third network device, and the awakening request information is used for requesting to awaken a main transceiver MR of the third network device;

the second network device receives a wakeup confirm frame, where the wakeup confirm frame is used to indicate that the MR of the third network device has been woken up.

7. The method of claim 6, wherein the second network device receiving a wake-up acknowledgement frame comprises:

the second network equipment receives the awakening confirmation frame sent by the first network equipment;

or,

and the second network equipment receives the awakening confirmation frame sent by the third network equipment.

8. The method of claim 6 or 7, further comprising:

and the second network equipment sends the frequency band or channel where the WUR of the third network equipment is located to the first network equipment.

9. The method of claim 6, wherein the second network device receiving a wake-up acknowledgement frame comprises:

the second network device receives 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 an identifier of the third network device and an identifier of the first network device.

10. The method according to any of claims 6-9, wherein before the second network device receives the wakeup confirm frame, further comprising:

the WUR of the second network device receives awakening request information sent by the first network device, wherein the awakening request information is used for requesting to awaken the MR of the second network device.

11. The method according to any of claims 6-10, wherein the wake-up request indication information is carried in a medium access control, MAC, frame, and the MAC frame contains the wake-up request indication information and information that the first network device needs to forward to a third network device.

12. The method according to any of claims 6-10, wherein the wake-up request indication information is carried in an aggregation frame, the aggregation frame comprising the first type frame and the second type frame, the first type frame comprising the wake-up request indication information; the second type frame includes information that the first network device needs to forward to the third network device.

13. The method according to any one of claims 6-12, further comprising:

and the second network equipment receives wakeup failure indication information sent by the first network equipment, wherein the wakeup failure indication information is used for indicating that the MR of the third network equipment is not woken up.

14. The method of claim 13, further comprising:

and the second network equipment sends a retransmission request to the first network equipment, wherein the retransmission request is used for requesting the first network equipment to send wakeup request information to the WUR of the third network equipment.

15. A method of data transmission, comprising:

the method comprises the steps that a third network device receives awakening request information sent by a first network device, wherein the awakening request information is generated after the first network device receives awakening request indication information sent by a second network device, the awakening request indication information is used for indicating the first network device to send the awakening request information to an awakening receiver WUR of the third network device, and the awakening request information is used for requesting to awaken a main transceiver MR of the third network device;

the third network device wakes up the MR.

16. The method of claim 15, wherein after the third network device wakes up the MR, further comprising:

the third network device sends a wakeup confirm frame to the first network device or the second network device, where the wakeup confirm frame is used to indicate that the MR of the third network device is woken up.

17. A data transmission apparatus, comprising:

the receiver is used for receiving awakening request indication information sent by the second network equipment, and the awakening request indication information is used for indicating that awakening request information is sent to an awakening receiver WUR of the third network equipment;

and the transmitter is used for transmitting the awakening request information to the WUR of the third network equipment, and the awakening request information is used for requesting to awaken the main transceiver MR of the third network equipment.

18. The apparatus of claim 17, wherein the receiver is further configured to receive a wake-up acknowledgement frame sent by the third network device, and wherein the wake-up acknowledgement frame indicates that the MR of the third network device is woken up.

19. The apparatus of claim 18, wherein the transmitter is further configured to transmit the wake-up confirm frame to the second network device.

20. The apparatus of claim 17, wherein the receiver is further configured to receive a multiuser wake-up acknowledgement frame sent by the third network device, wherein the multiuser wake-up acknowledgement frame is used to indicate that the MR of the third network device has been woken up, and wherein the multiuser wake-up acknowledgement frame includes the identity of the first network device and the identity of the second network device.

21. The apparatus of claim 19, wherein the transmitter is further configured to transmit a wake-up request message to a wake-up receiver WUR of the second network device, the wake-up request message requesting to wake up the master transceiver MR of the second network device.

22. A data transmission apparatus, comprising:

a transmitter, configured to send wake-up request indication information to a first network device, where the wake-up request indication information is used to indicate that wake-up request information is sent to a wake-up receiver WUR of a third network device, and the wake-up request information is used to request to wake up a master transceiver MR of the third network device;

a receiver configured to receive a wake-up acknowledgement frame indicating that the MR of the third network device has been woken up.

23. The apparatus of claim 22, wherein the receiver is further configured to receive the wake-up acknowledgement frame sent by the first network device;

or,

the receiver is further configured to receive the wake-up acknowledgement frame sent by the third network device.

24. The apparatus of claim 22 or 23, wherein the transmitter is further configured to transmit to the first network device a frequency band or channel in which the WUR of the third network device is located.

25. The apparatus of claim 22, wherein the receiver is specifically configured to receive a multiple user wakeup acknowledgement frame sent by the third network device, wherein the multiple user wakeup acknowledgement frame is used to indicate that the MR of the third network device is awake, and the multiple user wakeup acknowledgement frame includes an identifier of the third network device and an identifier of the first network device.

26. The apparatus according to any one of claims 22-25, wherein the receiver is specifically configured to receive a wake-up request message sent by the first network device, and the wake-up request message is used to request to wake up the MR of the second network device.

27. The apparatus of any of claims 22-26, wherein the wake-up request indication information is carried in a Medium Access Control (MAC) frame, and wherein the MAC frame comprises the wake-up request indication information and information that the first network device needs to forward to a third network device.

28. The apparatus according to any of claims 22-26, wherein the wake-up request indication information is carried in an aggregation frame, the aggregation frame comprising the first type frame and the second type frame, the first type frame comprising the wake-up request indication information; the second type frame includes information that the first network device needs to forward to the third network device.

29. The apparatus of any one of claims 22-28, wherein the receiver is further configured to receive wakeup failure indication information sent by the first network device, and the wakeup failure indication information is used to indicate that the MR of the third network device is not woken up.

30. The apparatus of claim 29, wherein the transmitter is further configured to send a retransmission request to the first network device requesting the first network device to send wake-up request information to the WUR of the third network device.

31. A data transmission apparatus, comprising:

the receiver WUR and the main transceiver MR are woken up,

the WUR is configured to receive wake-up request information sent by a first network device, where the wake-up request information is generated after the first network device receives wake-up request indication information sent by a second network device, the wake-up request indication information is used to indicate the first network device to send the wake-up request information to the WUR, and the wake-up request information is used to request to wake up the MR;

the WUR is used for waking up the MR.

32. The apparatus of claim 31, wherein the MR is configured to send a wake up confirm frame to the first network device or the second network device, wherein the wake up confirm frame indicates that the MR of the third network device has woken up.