WO2018133300A1

WO2018133300A1 - Method and device for establishing data communication

Info

Publication number: WO2018133300A1
Application number: PCT/CN2017/087952
Authority: WO
Inventors: 庞高昆; 方平
Original assignee: 华为技术有限公司
Priority date: 2017-01-19
Filing date: 2017-06-12
Publication date: 2018-07-26
Also published as: CN109891944B; CN109891944A

Abstract

Embodiments of the present invention relate to the technical field of communications, disclosed therein are a method and a device for establishing data communication, capable of solving the problem of the power consumption of a sender being too high in the process of establishing data communication. The method comprises: after a first device sending a first WUR message generated by the first device by means of a Wi-Fi interface of the first device in a working state, switching the state of the Wi-Fi interface of the first device from a working state to a non-working state or an intermittent working state; a second device receiving the first WUR message sent by the first device by means of a WUR interface of the second device in a working state, waking up a Wi-Fi interface of the second device, and sending a second WUR message generated by the second device to a WUR interface of the first device by means of the Wi-Fi interface of the second device; the first device receiving the second WUR message by means of the WUR interface of the first device, and waking up the Wi-Fi interface of the first device; then, the first device communicating with the Wi-Fi interface of the second device by means of the Wi-Fi interface of the first device. The embodiments of the present invention are suitable for establishing data communication.

Description

Method and device for establishing data communication

This application claims the priority of the Chinese Patent Application, filed on Jan. 19, 2017, filed Jan. In this application.

Technical field

The embodiments of the present invention relate to the field of communications technologies, and in particular, to a method and an apparatus for establishing data communications.

Background technique

At present, in order to implement data communication between the sender and the receiver, it is often necessary for the originator (ie, the sender) of the communication process to wake up the receiver by sending a wake-up packet, wherein the wake-up packet can Wake-Up Radio/Receiver (WUR) message sent to the sender. The access point (AP) supporting the 802.11 protocol is the sender, the station supporting the 802.11 protocol (Station, STA) is the receiver, and the STA is in the traditional wireless fidelity (Wi-Fi) interface. Based on the introduction of a WUR interface. In the STA, the Wi-Fi interface of the STA is usually in the sleep mode. Only the WUR interface of the STA receives the wake-up packet sent by the AP through the Wi-Fi interface of the AP itself, and the WUR interface of the STA sends the Wi-Fi interface to the STA. After the wake-up signal, the STA's Wi-Fi interface is activated and data communication with the AP is achieved.

However, although the above implementation process can effectively wake up the recipient's Wi-Fi interface, there is a problem that the wakeup of the receiver Wi-Fi interface takes a long time, for example, several milliseconds (ms) is required; The Wi-Fi interface of the receiver cannot immediately communicate with the AP after waking up. The Wi-Fi interface also takes a certain amount of time to set its own network allocation vector (NAV), or wait for the inquiry delay. The sender can send a Wi-Fi message to the sender after the time of (probe delay).

Since the receiver's Wi-Fi interface has a long period of time from the start of wake-up to normal operation, during this time, the sender's Wi-Fi interface has been in use, but has not been used. During this time, the sender's Wi-Fi interface needs to constantly check the Wi-Fi channel and wait for the receiver to send Wi-Fi messages. Therefore, the power consumption of the sender's Wi-Fi interface will increase, thereby increasing the sender. Power consumption.

Summary of the invention

Embodiments of the present invention provide a method and an apparatus for establishing data communication, which solve the problem that a sender consumes too much power in establishing a data communication process.

To achieve the above objective, the embodiment of the present invention adopts the following technical solutions:

In a first aspect, an embodiment of the present invention provides a method for establishing data communication. Specific method package After the first device generates the first WUR message, the first device sends a first WUR message carrying the reverse wakeup indication information to the WUR interface of the second device by using the Wi-Fi interface of the first device, and then the first device Switching the Wi-Fi interface status of the first device from the working state to the non-working state or the intermittent working state, and receiving the second device sends the second device through the Wi-Fi interface of the second device through the WUR interface of the first device WUR message. After the first device receives the second WUR message, the first device wakes up the Wi-Fi interface of the first device, and communicates with the Wi-Fi interface of the second device through the Wi-Fi interface of the first device. The first WUR message is used to instruct the second device to wake up the Wi-Fi interface of the second device, and send the second WUR message through the Wi-Fi interface of the second device; the reverse wake-up indication information is used to indicate that the second device passes The Wi-Fi interface of the second device sends a second WUR message, where the second WUR message is used to instruct the first device to wake up the Wi-Fi interface of the first device. Compared with the prior art, in the process of waking up the Wi-Fi interface of the receiver, in the case where the sender's Wi-Fi interface is always in the working state but has not been used, in the embodiment of the present invention, After the first device sends the first WUR message through the Wi-Fi interface of the first device, the state of the Wi-Fi interface of the first device is switched to a state with a low power consumption, for example, a non-working state or an intermittent state. Working state. In this way, before the Wi-Fi interface of the second device is woken up, the Wi-Fi interface of the first device does not increase the power consumption of the first device because it is always in the working state. In other words, in the embodiment of the present invention, after waking up the Wi-Fi interface of the second device, the Wi-Fi interface of the first device in the non-working state or the intermittent working state is reversely awake to save the saving. The purpose of the first device to consume power. Therefore, in the process of establishing data communication, the power consumption of the first device as the originating end of the communication process is reduced.

In a possible design, when the first device sends the first WUR message to the WUR interface of the second device through the Wi-Fi interface of the first device in the working state, the WUR interface of the second device wakes up first. a window, the first wake-up window includes a wake-up window of the WUR interface of the second device, a wake-up window of the Wi-Fi interface of the first device, and a wake-up window and the first device's Wi-Fi interface Any of the wake-up windows that overlap between a wake-up window of the WUR interface of the second device. Among them, the wake-up window is used to indicate the time when the interface is in working state. The WUR interface of the second device is in the working state when it needs to receive the first WUR message sent by the Wi-Fi interface of the first device, so that the first WUR message sent by the first device can be received by the WUR interface of the second device. So that the second device wakes up the Wi-Fi interface of the second device, thereby completing the process of subsequent reverse wake-up and communication using Wi-Fi messages.

In one possible design, the non-working state includes a standby state, a shallow sleep state, an idle state, a power saving state, and a sleep state. And any of the doze states. The various non-idle states exemplified above are only one possible example. In the embodiment of the present invention, the power consumption of the same interface in the non-working state or the intermittent working state in the same time period is less than the working state. The amount of electricity consumed.

In one possible design, the first WUR message carries time information. The time information is used to indicate when the second device sends the second WUR message to the first device. In this way, sufficient channel resources can be reserved for the second WUR message, and the second device sends the second WUR to the first device. Use.

In a possible design, the first device receives the second WUR message sent by the second device through the Wi-Fi interface of the second device by using the WUR interface of the first device, and may be implemented as: The second WUR message sent by the second device through the Wi-Fi interface of the second device is received by the WUR interface of the first device in the indicated time range. In this way, the first device can receive the second WUR message sent by the second device by using the reserved channel resource.

In one possible design, the first WUR message carries a wireless fidelity preamble Wi-Fi preamble. The length of the length field carried in the Wi-Fi preamble includes at least a total time required for the first device to send the first WUR message and the second device to send the second WUR message. By carrying the total time, the second device can be informed of the time when the Wi-Fi interface is placed in the working state, and the purpose of reserving the channel resources can also be achieved.

In a possible design, after the first device switches the Wi-Fi interface state of the first device from the working state to the non-working state or the intermittent working state, if the WUR interface of the first device is in a non-working state, intermittent The working state or the closed state, the first device switches the WUR interface state of the first device to the working state. After the first device adjusts the state of the Wi-Fi interface of the first device, in order to ensure that the first device can still receive the second WUR message sent by the second device, the WUR interface of the first device needs to be placed in an active state. Therefore, if the WUR interface of the first device is in an inactive state, an intermittent working state, or a closed state, the state of the WUR interface of the first device needs to be adjusted to ensure the reception of the second WUR message.

In a possible design, in order to improve the security of the data transmission, the first WUR message generated by the first device may also carry the first verification value. After the second device receives the first WUR message through the WUR interface of the second device, whether the first verification value meets the predefined data transmission condition, that is, whether the second device has the second verification value, may be determined by generating the second verification value. Determining the identity of the first WUR message sent by the first device, or whether the first device has the identity of sending the first WUR message to the second device, and if the first verification value matches the second verification value, it is considered to be authenticated. That is, the subsequent reverse wake-up operation can be continued between the first device and the second device.

In a second aspect, an embodiment of the present invention provides a method for establishing data communication. The method specifically includes: receiving, by the WUR interface of the second device, the second device, by using the WUR interface of the first device, the first WUR message carrying the reverse wakeup indication information, and according to the indication of the first WUR message Awakening the Wi-Fi interface of the second device, and generating a second WUR message for instructing the first device to wake up the Wi-Fi interface of the first device. After the second device sends the second WUR message to the WUR interface of the first device by using the Wi-Fi interface of the second device, and after the second device sends the second WUR message, the second device passes the Wi-Fi of the second device. The interface communicates with the Wi-Fi interface of the first device. Compared with the prior art, in the process of waking up the Wi-Fi interface of the receiver, in the case where the sender's Wi-Fi interface is always in the working state but has not been used, in the embodiment of the present invention, After receiving the first WUR message sent by the first device by using the WUR interface of the first device, the second device needs to wake up the Wi-Fi interface of the second device, and also provide the first device to wake up the first device Wi- The trigger message of the Fi interface, that is, the second device sends a second WUR message to the WUR interface of the first device by using the Wi-Fi interface of the second device. In this way, the first device receives the first After the second WUR message, the Wi-Fi interface of the first device can be directly awake. Therefore, the Wi-Fi interface of the first device is awakened after the Wi-Fi interface of the second device is woken up. Therefore, there is no prior art as the sender. In the process of waking up the Wi-Fi interface of the second device (as the receiver), the Wi-Fi interface continues to consume power due to the Wi-Fi interface, thereby solving the problem of the first device in the process of establishing data communication. The problem of excessive power.

In a possible design, when the second device receives the first WUR message sent by the first device through the Wi-Fi interface of the first device to the WUR interface of the second device, the second device passes the WUR interface of the second device, and the second device The WUR interface of the device is in the first wake-up window, and the first wake-up window includes a wake-up window of the WUR interface of the second device, a wake-up window of the WUR interface of the first device, and a WUR interface of the first device Wake up any of the awake windows that overlap between the window and a wake-up window of the WUR interface of the second device. Among them, the wake-up window is used to indicate the time when the interface is in working state. The WUR interface of the second device is in the working state when it needs to receive the first WUR message sent by the Wi-Fi interface of the first device, so that the first WUR message sent by the first device can be received by the WUR interface of the second device. So that the second device wakes up the Wi-Fi interface of the second device, thereby completing the process of subsequent reverse wake-up and communication using Wi-Fi messages.

In one possible design, the first WUR message carries time information. The second device sends the second WUR message to the WUR interface sent by the first device by using the Wi-Fi interface of the second device, which may be implemented as follows: the second device passes the Wi of the second device within the time range indicated by the time information. The -Fi interface sends a second WUR message to the WUR interface of the first device. In this way, the second device can send the second WUR message to the first device through the reserved channel resource.

In one possible design, the first WUR message carries a Wi-Fi preamble. The length of the length field carried in the Wi-Fi preamble includes at least a total time required for the first device to send the first WUR message and the second device to send the second WUR message. By carrying the total time, the second device can be informed of the time when the Wi-Fi interface is placed in the working state, and the purpose of reserving the channel resources can also be achieved.

In a possible design, when the second device sends the second WUR message to the WUR interface of the first device through the Wi-Fi interface of the second device, the WUR interface of the first device is in the second wake-up window, The wake-up window includes a wake-up window of the WUR interface of the first device, a wake-up window of the Wi-Fi interface of the second device, and a wake-up window of the WUR interface of the first device and Wi- of the second device. Any of the waking windows that overlap between a wake-up window of the Fi interface. Among them, the wake-up window is used to indicate the time when the interface is in working state. The WUR interface of the first device is in a working state when it needs to receive the second WUR message sent by the Wi-Fi interface of the second device. Therefore, it can be ensured that the second WUR message sent by the second device is received by the WUR interface of the first device. So that the first device wakes up the Wi-Fi interface of the first device, thereby completing the process of subsequently using the Wi-Fi message communication.

In a possible design, in order to improve the security of the data transmission, the first WUR message generated by the first device may also carry the first verification value. After the second device receives the first WUR message through the WUR interface of the second device, whether the first verification value meets the predefined data transmission condition, that is, whether the second device has the second verification value, may be determined by generating the second verification value. Analyze the first set The identity of the first WUR message to be sent, or whether the first device has the identity of sending the first WUR message to the second device. If the first verification value matches the second verification value, it is considered to be authenticated, that is, the first A subsequent reverse wakeup operation can continue between the device and the second device.

In a third aspect, an embodiment of the present invention provides an apparatus for establishing data communication, which is applied to a first device. The device may implement the functions implemented by the first device in any of the foregoing method embodiments, and the functions may be implemented by using hardware or by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above functions.

In one possible design, the apparatus includes a processor, a WUR interface, and a Wi-Fi interface, the processor being configured to support the apparatus to perform the corresponding functions of the various method embodiments described above. The WUR interface and Wi-Fi interface are used to support communication between the device and other devices. The apparatus can also include a memory for coupling with the processor that retains the program instructions and data necessary for the apparatus. The number of the processor, the WUR interface, the Wi-Fi interface, and the memory may each be one or more.

In a fourth aspect, an embodiment of the present invention provides an apparatus for establishing data communication, which is applied to a second device. The device can implement the functions implemented by the second device in any of the foregoing method embodiments, and the functions can be implemented by using hardware or by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above functions.

In a fifth aspect, an embodiment of the present invention provides a computer storage medium, configured to store computer software instructions used by the first device to implement the foregoing functions, and includes functions for performing the first device in any one of the foregoing method embodiments. The program designed.

In a sixth aspect, an embodiment of the present invention provides a computer storage medium, configured to store computer software instructions used by the second device to implement the foregoing functions, and includes functions for performing the second device in any one of the foregoing method embodiments. The program designed.

DRAWINGS

1 is a schematic structural diagram of a communication network system according to an embodiment of the present invention;

2 is a flowchart of a method for establishing data communication according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a process for initiating establishing data communication by a first device according to an embodiment of the present disclosure;

4 to FIG. 7 are flowcharts of another method for establishing data communication according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of a data structure according to an embodiment of the present disclosure;

FIG. 9 is a schematic structural diagram of an apparatus for establishing data communication according to an embodiment of the present invention;

FIG. 10 to FIG. 12 are diagrams showing another structure of an apparatus for establishing data communication according to an embodiment of the present invention. intention.

detailed description

The technical solutions in the embodiments of the present invention will be described below with reference to the accompanying drawings in the embodiments of the present invention. See Table 1 for the Chinese and English comparison of the technical terms involved in this article.

Table I

Embodiments of the present invention may be used in a communication network system in which at least The first device and the second device are included. The number of the second devices is at least one. For the first device, the first WUR message may be sent in the form of unicast, multicast, broadcast, etc., and then received by at least one second device.

FIG. 1 is a schematic structural diagram of a possible communication network system. A WUR interface and a Wi-Fi interface are provided in the first device and the second device, and data interaction can be performed between the WUR interface and the Wi-Fi interface in the same device; in the first device, the WUR interface and the Wi device The -Fi interface shares an antenna, and in the second device, the WUR interface and the antenna of the Wi-Fi interface are separately set. It should be noted that the interface and the antenna layout of the first device and the second device may be the same or different, and the Wi-Fi interface may also send and receive WUR messages. Therefore, in some application scenarios, Further saving the cost of the device, it is also possible to set the Wi-Fi interface only in the first device and/or the second device without separately setting the WUR interface. However, in the embodiment of the present invention, the power consumption of the WUR interface in the working state is lower than the power consumption of the Wi-Fi interface in the working state in the same time range. Therefore, in the embodiment of the present invention, In the applicable application scenario, at least the WUR interface and the Wi-Fi interface are set in the first device. In addition, the layout relationship between the antenna and the interface is also shared by the WUR interface of the same device and the antenna used by the Wi-Fi interface in consideration of cost saving, that is, the layout mode of the first device in the figure. For this layout, although the Wi-Fi interface usually transmits a wideband signal, and the WUR interface usually transmits a narrowband signal, considering the characteristics of the wideband signal, that is, in the case where some of the subcarriers are vacant, only the WUR signal corresponds. The signal is transmitted over a narrow band to enable transmission of narrowband signals. It should be noted that the narrowband signal transmitted through the WUR interface is much less difficult to operate in the receiving and decoding process than the wideband signal transmitted through the Wi-Fi interface.

In the embodiment of the present invention, the first device and the second device may be devices such as an AP and an STA. For example, the first device may be a wristband, and the second device may be a smart phone. For the case of the above example, the battery capacity of the first device is much smaller than the battery capacity of the second device. Therefore, the implementation of waking up the Wi-Fi interface of the second device in the background art often consumes a large amount of power of the first device. Therefore, in order to save the power of the first device, the embodiment of the present invention proposes a method for establishing a data communication.

An embodiment of the present invention provides a method for establishing data communication. As shown in FIG. 2, the method may be implemented by the first device and the second device, as shown in FIG.

Step 101: The first device generates a first WUR message.

The first WUR message is used to instruct the second device to wake up the Wi-Fi interface of the second device, and send the second WUR message through the Wi-Fi interface of the second device; the first WUR message carries the reverse wakeup indication information. The reverse wake-up indication information is used to instruct the second device to send a second WUR message by using the Wi-Fi interface of the second device, where the second WUR message is used to instruct the first device to wake up the Wi-Fi interface of the first device. In addition, the first WUR message may also carry a Wi-Fi preamble, and the length of the length field carried in the Wi-Fi preamble includes at least a total length required by the first device to send the first WUR message and the second device to send the second WUR message. For details, refer to the following description about FIG. 13; the first WUR message may further carry a first verification value, so as to authenticate the identity of the first device after the second device receives the first WUR message, to improve the Data between a device and a second device The security of the transmission process; the first WUR message may also carry time information, where the time information is used to indicate the time when the second device sends the second WUR message to the first device, so as to reserve channel resources for the first device and the first device. The second device is used for data communication.

It should be noted that the first WUR message may also carry other information, for example, the first WUR message may also carry the identifier of the first device; when the first device sends the first WUR message to the second device, A WUR message should also carry the identity of the second device, and the like. In the embodiment of the present invention, the content of the information carried in the first WUR message is not limited, and the foregoing example is only one possible example.

As shown in FIG. 3, the first device initiates a process of establishing data communication. After completing the channel competition, the first device generates a first WUR message, and sends a first WUR message to the WUR interface of the second device by using the Wi-Fi interface of the first device. After receiving the first WUR message through the WUR interface, the second device wakes up the Wi-Fi interface of the second device. It should be noted that, in order to reduce the power consumption of the second device, before the second device receives the first WUR message sent by the first device, the Wi-Fi interface of the second device is usually in an inactive state and intermittently working. Or the off state, therefore, in order to wake up the Wi-Fi interface of the second device, the first device needs to send the first WUR message. However, in some cases, the Wi-Fi interface of the second device may also be in a working state, and then the process of waking up the Wi-Fi interface by the second device may be omitted. After that, the Wi-Fi interface of the second device needs to wake up for a certain period of time, and also to ensure that the second device has sufficient resources to send the second WUR message to implement reverse wakeup, the second device also needs to contend for the channel, and is competing In the process of the channel, the second device also needs to perform some basic configuration work on the Wi-Fi interface of the second device, for example, the physical layer sets the network allocation vector, or waits for the inquiry delay time. The second WUR message is then generated by the second device and sent to the WUR interface of the first device through the Wi-Fi interface in which the second device is already in operation. After receiving the second WUR message on the WUR interface of the first device, the first device wakes up the Wi-Fi interface of the first device in the same manner as the second device. After the Wi-Fi interfaces of the first device and the second device are in an active state, the Wi-Fi message is transmitted between the first device and the second device. It should be noted that, in order to save energy consumption of the first device, after the first device sends the first WUR message through the Wi-Fi interface of the first device, the first device may perform the status of the Wi-Fi interface of the first device. The adjustment is to adjust the state of the Wi-Fi interface of the first device to the inactive state, the intermittent working state, or the shutdown state. If the WUR interface of the first device is in the closed state, the WUR interface of the first device needs to be enabled. To ensure subsequent reception of the second WUR message from the second device. When the second device sends the second WUR message, the second device sends the second WUR message before, after, and after the second device sends the second WUR message. In the case of a WUR interface of a device, it is only necessary to ensure that the first device can successfully receive the second WUR message.

Among them, the working state, the non-working state, the intermittent working state and the closed state belong to several possible states of the Wi-Fi interface and the WUR interface. In the embodiment of the present invention, there is no overlap between the foregoing states. For example, the state opposite to the intermittent working state is a continuous working state, but in the embodiment of the present invention, the working state includes a continuous working state. However, it does not mean the same meaning as the intermittent working state. For the WUR interface, the working WUR interface can be connected. The WUR message sent by other devices is received; for the Wi-Fi interface, the working Wi-Fi interface can receive Wi-Fi messages sent by other devices, and can also send Wi-Fi messages to other devices. It can be seen that the working state emphasizes that the interface can work at present; while the continuous working state describes the working trend of the interface in a period of time, that is, the working state is always working; similarly, the intermittent working state describes the time period, The working trend of the interface is in the working state immediately, but not in the working state. In the embodiment of the present invention, the state opposite to the working state is defined as the non-working state, and the closed state is not included in the non-working state. The non-operation state may include any one of a wait state, a shallow sleep state, an idle state, a power saving state, a sleep state, and a sleep state.

In addition, the first WUR message may also be used to indicate that the second device is at or after the second device's Wi-Fi interface is switched from the busy state to the idle state (or when there is data cached for the first device) Sending a second WUR message to the first device, where the second WUR message is used to instruct the first device to wake up the Wi-Fi interface of the first device. It should be noted that the first WUR message may further carry the first indication information, and the first indication information indicates, by the second device, when the Wi-Fi interface of the second device is switched from the busy state to the idle state. Or, when there is data for the first device, the second WUR message is sent to the first device, where the second WUR message is used to instruct the first device to wake up the Wi-Fi interface of the first device. In other words, the foregoing implementation step may be triggered not only by the first WUR message as a specially defined message, but also by the first indication information carried in the first WUR message.

Or the first WUR message may be used to indicate that the second device sends a second WUR message to the first device when the data is buffered for the first device, and the second WUR message is used to indicate that the first device wakes up. A device's Wi-Fi interface. Similarly, the first WUR message may further carry the second indication information, and the second indication information indicates, by the second indication information, that the second device sends the second WUR message to the first device when the data buffered by the first device is available. The second WUR message is used to instruct the first device to wake up the Wi-Fi interface of the first device. That is, the foregoing implementation step may be triggered not only by the first WUR message as a specially defined message, but also by the second indication information carried in the first WUR message.

Or the first WUR message may be used to indicate that the first device switches the Wi-Fi interface state of the first device from the working state to the inactive state or the intermittent working state, and/or the WUR interface of the first device is in the working state, The second device sends a second WUR message to the first device when the second device has the data cached by the first device, and the second WUR message is used to instruct the first device to wake up the Wi-Fi interface of the first device. Similarly, the first WUR message may further carry the third indication information, and the third indication information indicates that the first device switches the Wi-Fi interface state of the first device from the working state to the non-working state or the intermittent working state. And/or the WUR interface of the first device is in an active state, and when the second device has data cached by the first device, the second device sends a second WUR message to the first device, where the second WUR message is used to indicate The first device wakes up the Wi-Fi interface of the first device. That is, the foregoing implementation step may be triggered not only by the first WUR message as a specially defined message, but also by the third indication information carried in the first WUR message.

Or, the first device is in the WUR state or the WUR mode mode, and the second device sends the second WUR message to the first device when the second device has the data cached by the first device, and the second WUR The information is used to instruct the first device to wake up the Wi-Fi interface of the first device. The first device is in the WUR state or the WUR mode mode indicates that the WUR interface of the first device is in a working state. At this time, the WiFi interface of the first device is inactive. Status or intermittent working status.

In addition, the first WUR message may be further used to indicate that the second device is at or after the second device's Wi-Fi interface is switched from the busy state to the idle state (or when there is data cached by the first device or Afterwards, or when the first device is requested to cache data of the second device, the first Wi-Fi message is sent to the first device by using the Wi-Fi interface of the second device, where the first Wi-Fi message is sent. The Wi-Fi interface for indicating the second device can communicate with the Wi-Fi interface of the first device at this time.

It should be noted that the first WUR message may further carry the fourth indication information, and the fourth indication information indicates, by the second device, when the Wi-Fi interface of the second device is switched from the busy state to the idle state. The second WUR message is used to instruct the first device to wake up the Wi-Fi interface of the first device, when the data is cached for the first device. In other words, the foregoing implementation step may be triggered not only by the first WUR message as a specially defined message, but also by the fourth indication information carried in the first WUR message.

Or the first WUR message may be further used to indicate that the first device has cache data for the second device, and when the second device needs the cached data of the first device to the second device, The second device sends a first WiFi message to the first device by using the Wi-Fi interface of the second device, where the first WiFi message is used to indicate that the Wi-Fi interface of the second device can be connected to the Wi-Fi interface of the first device. Communication.

It should be noted that the first WUR message may further carry the fifth indication information, and the fifth indication information indicates that the first device has the cached data for the second device, and when the second device requests the first device, When the cached data is sent to the second device or after, or when the second device needs the cached data of the first device to the second device, the second device passes the Wi-Fi interface of the second device And sending, by the first device, a second Wi-Fi message, where the second Wi-Fi message is used to indicate that the Wi-Fi interface of the second device can communicate with the Wi-Fi interface of the first device. In other words, the foregoing implementation step may be triggered not only by the first WUR message as a specially defined message, but also by the fifth indication information carried in the first WUR message.

Or the first WUR message may be further configured to: when the second device has the data cached by the first device, send a third Wi-Fi message to the first device by using the Wi-Fi interface of the second device, The third Wi-Fi message is used to instruct the second device to send, to the first device, data that is cached by the second device to the first device.

It should be noted that the first WUR message may further carry the sixth indication information, and when the sixth indication information indicates that there is data for the first device, or after, the Wi-Fi interface of the second device is used. Sending a fourth WiFi message to the first device, where the fourth Wi-Fi message is used to instruct the second device to send, to the first device, data that is cached by the second device to the first device. In other words, the foregoing implementation step may be triggered by the first WUR message as a specially defined message, or may be triggered by the sixth indication information carried in the first WUR message.

Or the first WUR message may be further used to indicate that the first device has cache data for the second device, and when the second device needs the cached data of the first device to the second device, the first The second device sends a fifth Wi-Fi message to the first device, where the fifth Wi-Fi message is used to indicate that the second device requests the cached data of the first device to the second device.

It should be noted that the first WUR message may further carry the seventh indication information, and the seventh indication information indicates that the first device has the cached data for the second device, and when the second device needs the first When the device sends the data to the second device, the second device sends a sixth Wi-Fi message to the first device, where the sixth Wi-Fi message is used to indicate that the second device requests the first device to The cached data of the two devices. In other words, the foregoing implementation step can be triggered not only by the first WUR message as a specially defined message but also by the seventh indication information carried in the first WUR message.

The types of information that may be carried in the first WUR message are not limited in the embodiment of the present invention, and are not limited to the foregoing reverse wakeup indication information and the first to seventh indication information, and the foregoing various types of indication information are only used as a possible example. . Similarly, the first WUR message itself may trigger the corresponding implementation process by the identity of the specially defined message without carrying the reverse wakeup indication information and the first to seventh indication information. In the embodiment of the present invention, the functions of the first to seventh indication information are similar to the functions of the reverse wake-up indication information, and are used to instruct the second device to complete the corresponding operation on the indication information carried in the received first WUR message. .

It should be noted that the foregoing first WUR message, the reverse wakeup indication information, and the first to seventh indication information may be used only by the second device to execute the corresponding process after receiving the first WUR message. In other words, the first WUR message, the reverse wakeup indication information, and the first to seventh indication information itself may not have the function of instructing the second device to implement the corresponding function, but may be implemented as a possible function. After the second device receives the first WUR message, the reverse wake-up indication information, and the first to seventh indication information, the second device identifies the received message and selectively performs or does not execute. The corresponding operation.

For example, the first device sends a first WUR message by using the Wi-Fi interface of the first device, where the first WUR message is used to enable the second device that receives the reverse wakeup indication information to send the second device through the Wi-Fi interface of the second device. a second WUR message, the second device receives the first WUR message through the WUR interface of the second device, and sends a second WUR message according to the first WUR message;

Or the first device sends the first WUR message through the Wi-Fi interface of the first device, and carries the reverse wakeup indication information, where the reverse wakeup indication information is used to enable the second device that receives the reverse wakeup indication information to pass The Wi-Fi interface of the second device sends a second WUR message, and the second device receives the reverse wake-up indication information, and sends a second WUR through the Wi-Fi interface of the second device according to the reverse wake-up indication information carried Message.

Step 102: The first device sends a first WUR message to the WUR interface of the second device by using the Wi-Fi interface of the first device in the working state.

Considering that the process of establishing data communication is initiated by the first device, and the solution for establishing data communication mentioned in the background art is that the first device is in a waiting state after transmitting the WUR message, therefore, in order to clarify the present invention In the embodiment, the state of the Wi-Fi interface of the first device is adjusted to solve the problem that the first device consumes too much power in the background. In the embodiment of the present invention, the first WUR message may be used by the first device. Wi-Fi interface to send.

It should be noted that, when the first device sends the first WUR message to the WUR interface of the second device by using the Wi-Fi interface of the first device, the second device can successfully receive the first through the WUR interface of the second device. WUR message, therefore, the WUR interface of the second device is in the first awake window. The first wake-up window includes a wake-up window of the WUR interface of the second device, a wake-up window of the Wi-Fi interface of the first device, and a wake-up window and a Wi-Fi interface of the first device. Any of the wake-up windows overlapped between a wake-up window of the WUR interface of the second device, wherein the wake-up window is used to indicate when the interface is in a working state. This means that you need to ensure that the WUR interface of the second device is working. In addition, the first wake-up windows of the above several examples may be the same or different time periods, which are not limited herein.

Step 103: After transmitting the first WUR message, the first device switches the Wi-Fi interface state of the first device from the working state to the non-working state or the intermittent working state.

Referring to the above description of various interface states, it can be known that, during the same time, the power consumption of the Wi-Fi interface of the first device in the working state is greater than the power consumption in the non-operating state or the intermittent working state. It should be noted that the intermittent working state may include a periodic working state or a non-periodic working state. The setting of the period is not limited in the embodiment of the present invention.

After the first device sends the first WUR message, in order to save the power consumption of the first device, the Wi-Fi interface state of the first device needs to be switched. It should be noted that although the Wi-Fi interface of the first device can be powered off, the wake-up process of the Wi-Fi interface takes a period of time, in order to reduce the data between the first device and the second device. In the embodiment of the present invention, the adjusted Wi-Fi interface state is mainly in a state that is easily awakened in a short time, similar to the standby state of the computer, although there is a small amount of power consumption, But it can save a lot of time when waking up. At the same time, in order to ensure that the first device can also receive the second WUR message sent by the second device, it is necessary to ensure that the WUR interface of the first device is in an active state.

It should be noted that when the Wi-Fi interface of the first device is in a non-working state or an intermittent working state, the Wi-Fi interface of the first device cannot receive the message sent by the other device, and the first device cannot The other message is sent again through the Wi-Fi interface of the first device.

Step 104: The second device receives the first WUR message sent by the first device by using the WUR interface of the first device by using the WUR interface of the second device.

To ensure that the second device can receive the first WUR message through the WUR interface of the second device, when the second device receives the first WUR message sent by the first device by using the WUR interface of the second device, the WUR interface of the second device Need to be in the first wake up window. The first wake-up window includes a wake-up window of the WUR interface of the second device, a wake-up window of the WUR interface of the first device, and a wake-up window of the WUR interface of the first device and the WUR of the second device. Any of the awake windows that overlap between an awake window of the interface, wherein the awake window is used to indicate when the interface is active.

It should be noted that the first awake windows of the above several examples may be the same or different time segments, which are not limited herein.

Step 105: The second device wakes up the Wi-Fi interface of the second device according to the indication of the first WUR message, and generates a second WUR message.

The second WUR message is used to instruct the first device to wake up the Wi-Fi interface of the first device.

Step 106: The second device sends a second WUR message to the WUR interface of the first device by using the Wi-Fi interface of the second device.

It should be noted that, when the second device receives the first WUR message, the Wi-Fi interface of the second device may be in the working state, and the Wi-Fi interface of the second device is already occupied, that is, the Wi of the second device. The -Fi interface is currently busy. At this time, the second device cannot send the second WUR message to the WUR interface of the first device through the Wi-Fi interface of the second device. Then, the second device may be when the Wi-Fi interface of the second device is switched from the busy state to the idle state, or after switching to the idle state, or when the data cached for the first device exists in the second device or after The second device sends a second WUR message to the WUR interface of the first device through the Wi-Fi interface of the second device.

To ensure that the first device can receive the second WUR message sent by the second device by using the WUR interface of the first device, the second device sends the second WUR to the WUR interface of the first device by using the Wi-Fi interface of the second device. In the message, the WUR interface of the first device is in the second wake-up window. The second wake-up window includes a wake-up window of the WUR interface of the first device, a wake-up window of the Wi-Fi interface of the second device, and a wake-up window and a second device of the WUR interface of the first device. Any of the wake-up windows that overlap between a wake-up window of the Wi-Fi interface, where the wake-up window is used to indicate when the interface is active.

Step 107: The first device receives, by using the WUR interface of the first device, a second WUR message sent by the second device by using the Wi-Fi interface of the second device.

Step 108: After the first device receives the second WUR message, the first device wakes up the Wi-Fi interface of the first device.

Step 109: Communicate with a Wi-Fi interface of the second device through a Wi-Fi interface of the first device.

In the embodiment of the present invention, the foregoing communication may include: after the second device sends the second WUR message, the second device sends the Wi-Fi message to the first device by using the Wi-Fi interface of the second device, and is performed by the first device. The device receives the Wi-Fi message sent by the second device by using the Wi-Fi interface of the first device;

Or after the first device wakes up the Wi-Fi interface of the first device, the first device sends a Wi-Fi message to the second device through the Wi-Fi interface of the first device, and the second device passes the second device. The Wi-Fi interface receives the Wi-Fi message sent by the first device.

It should be noted that after the Wi-Fi interfaces of the first device and the second device are both awake, step 109 may be performed. Since the data communication between the first device and the second device has been established at this time, the Wi-Fi message can also be sent to the other party through the respective Wi-Fi interfaces by the first device and the second device, respectively. The manner, timing, and the like for transmitting the Wi-Fi message between the first device and the second device are not limited in the embodiment of the present invention.

Compared with the prior art, in the process of waking up the Wi-Fi interface of the receiver, in the case where the sender's Wi-Fi interface is always in the working state but has not been used, in the embodiment of the present invention, After the first device sends the first WUR message through the Wi-Fi interface of the first device, the state of the Wi-Fi interface of the first device is switched to a state with a low power consumption, for example, a non-working state or an intermittent state. Working state. In this way, before the Wi-Fi interface of the second device is woken up, the Wi-Fi interface of the first device does not increase the power consumption of the first device because it is always in the working state. In other words, in the embodiment of the present invention, after waking up the Wi-Fi interface of the second device, the Wi-Fi interface of the first device in the non-working state or the intermittent working state is reversely awake to save the saving. The purpose of the first device to consume power. Therefore, in the process of establishing data communication, the power consumption of the first device as the originating end of the communication process is reduced.

For the second device, after receiving the first WUR message sent by the first device, the second device not only needs to wake up the Wi-Fi interface of the second device, but also provides a trigger for the first device to wake up the first device Wi- The trigger message of the Fi interface, that is, the second device sends a second WUR message to the WUR interface of the first device by using the Wi-Fi interface of the second device. In this way, after receiving the second WUR message, the first device can directly wake up the Wi-Fi interface of the first device. Therefore, the Wi-Fi interface of the first device is awakened after the Wi-Fi interface of the second device is woken up. Therefore, there is no prior art as the sender. A device that continuously consumes power due to the Wi-Fi interface being in a working state during the process of waking up the Wi-Fi interface of the second device as the receiver, thereby solving the power consumption of the first device during the establishment of the data communication process Too high a problem.

For the case where the first WUR message carries the time information, the time information may be used to indicate the time when the second device sends the second WUR message to the first device. Therefore, on the basis of the implementation shown in FIG. 2, an implementation as shown in FIG. 4 can also be implemented. Step 106: The second device sends the second WUR message to the WUR interface of the first device by using the Wi-Fi interface of the second device, which may be specifically implemented as step 201. In step 107, the first device passes the WUR interface of the first device. The receiving the second WUR message sent by the second device by using the Wi-Fi interface of the second device may be specifically implemented as step 202:

Step 201: The second device sends a second WUR message to the WUR interface of the first device by using the Wi-Fi interface of the second device in the time range indicated by the time information.

Step 202: The first device receives, by using the WUR interface of the first device, the second WUR message sent by the second device by using the Wi-Fi interface of the second device.

The time information may be a period of time for the first device to receive the second WUR message. For example, the first device estimates that the first WUR message is sent to the WUR interface of the second device, and the second device successfully wakes up. The total time of the Wi-Fi interface of the two devices, and then the time range formed by the two time points respectively determined before and after the total time is determined as the time range indicated by the time information, and then the channel resources are reserved to ensure the first The device can successfully receive the second WUR message through the WUR interface of the first device. It should be noted that the time range formed by the time points before and after the total time determined separately may be equal to or longer than the duration of the total time. Of course, in order to ensure that the second WUR message is successfully received, the first device also needs to ensure that the WUR interface of the first device is in the working state within the time range indicated by the time information.

In this way, since the first device sends the first WUR message, the time for receiving the second WUR message is reserved, and the second device sends the second WUR message to the first device within the time range. In other words, the first device can reserve sufficient channel resources for receiving the second WUR message, thereby improving the probability of successfully establishing data communication between the first device and the second device.

Whether the first device or the second device receives the WUR message from the other party after the WUR interface performs data interaction with the Wi-Fi interface that is in the same device to wake up Wi-Fi interface of the same device.

For the first device, based on the implementation shown in FIG. 2 or FIG. 4, FIG. 2 as an example, it can also be implemented as shown in FIG. 5. After the first device receives the second WUR message, the first device wakes up the Wi-Fi interface of the first device, which may be specifically implemented as step 301:

Step 301: After the first device receives the second WUR message through the WUR interface of the first device, the WUR interface of the first device sends a wake-up message to the Wi-Fi interface of the first device to wake up the Wi-Fi interface of the first device. .

The Wi-Fi interface of the first device is in an active state, an intermittent working state, or a non-working state after waking up.

For the second device, based on the implementation shown in any one of FIG. 2, FIG. 4, and FIG. 5, FIG. 2 can also be implemented as an implementation manner as shown in FIG. 6. In step 105, the second device wakes up the Wi-Fi interface of the second device according to the indication of the first WUR message, and generates a second WUR message, which may be specifically implemented as step 302 and step 303:

Step 302: After the second device receives the first WUR message through the WUR interface of the second device, the WUR interface of the second device sends a wakeup message to the Wi-Fi interface of the second device to wake up the Wi-Fi interface of the second device. .

The Wi-Fi interface of the second device is in a working state, an intermittent working state, or a non-working state after the wakeup.

Step 303: The second device generates a second WUR message.

It should be noted that the Wi-Fi interface in the working state can directly receive and send Wi-Fi messages; the Wi-Fi interface in the intermittent working state can only perform Wi-Fi messages when the Wi-Fi interface is working. The receiving and transmitting; the non-working Wi-Fi interface can enter the working state in a short time when the transmitting and receiving functions need to be implemented, or only support one function of sending and receiving. Compared to the working state, the Wi-Fi interface in the non-working state or the intermittent working state consumes less power.

Corresponding to the above implementation, for the first device, if the first device receives the Wi-Fi message sent by the second device by using the Wi-Fi interface of the first device, the specific device may be specifically implemented as:

If the Wi-Fi interface of the first device is in an active state, an intermittent working state, or an inactive state, the first device receives the Wi-Fi message sent by the Wi-Fi interface of the second device by using the Wi-Fi interface of the first device. .

If the first device sends a Wi-Fi message to the second device by using the Wi-Fi interface of the first device, the first device may be specifically implemented as:

If the Wi-Fi interface of the first device is in an active state, an intermittent working state, or an inactive state, the first device sends a Wi-Fi message to the Wi-Fi interface of the second device through the Wi-Fi interface of the first device.

Corresponding to the above implementation, for the second device, after the second device sends the second WUR message through the Wi-Fi interface of the second device, the second device sends the second device through the Wi-Fi interface of the second device to the first device. Sending a Wi-Fi message can be implemented as:

After the second device sends the second WUR message through the Wi-Fi interface of the second device, if the Wi-Fi interface of the second device is in an active state, an intermittent working state, or a non-working state, the second device passes the second device. The Wi-Fi interface receives the Wi-Fi message sent by the first device through the Wi-Fi interface of the first device.

The second device receives the Wi-Fi message sent by the first device through the Wi-Fi interface of the first device by using the Wi-Fi interface of the second device, which may be specifically implemented as:

If the Wi-Fi interface of the second device is in an active state, an intermittent working state, or a non-working state, the second device sends a Wi-Fi message to the Wi-Fi interface of the first device through the Wi-Fi interface of the second device.

In addition, the first device sends a first WUR message through the WUR interface of the first device, and may not have any second device feedback, or may cause the first device to fail to send the first WUR message due to various willing reasons. issue. In this case, according to the implementation manner of the foregoing solution, although the Wi-Fi interface of the first device has been adjusted, the power consumption of the first device can be reduced, but the WUR interface of the first device still consumes power due to being in the working state. In order to reduce the power consumption caused by the WUR interface of the first device being in the first state working state for a long time, and the WUR interface of the first device does not receive any message during the period of time, an implementation manner of the embodiment of the present invention is provided. In the above case, the state of the WUR interface of the first device can also be adjusted. Therefore, on the basis of any of the implementations shown in FIG. 2, FIG. 4 to FIG. 6, FIG. 2 can also be implemented as an implementation as shown in FIG. The method further includes step 401:

Step 401: If the first device does not receive the second WUR message sent by the second device by using the Wi-Fi of the second device within the predetermined time, the WUR interface of the first device enters an intermittent working state or a non-working state.

It should be noted that the predetermined time can be preset by the user or the staff based on historical experience values. Moreover, in the setting process, the battery capacity of the first device may also be referred to. For example, for the first device with a small battery capacity, the predetermined time may be set to a shorter time. Similarly, for the battery capacity is larger. For the first device, the predetermined time can be set to a longer time. Regardless of the setting method, it is possible to support the first device to successfully send the first WUR message to the WUR interface of the second device, and the second device successfully generates the second WUR message, and the second device successfully generates the second WUR message. After the Wi-Fi interface of the second device is awake, the second WUR message is successfully sent to the WUR interface of the first device, or the first device successfully sends the first WUR message to the WUR interface of the second device, and After the second device's Wi-Fi interface is switched from the busy state to the idle state, the second device successfully generates a second WUR message, and successfully sends the second WUR message to the first device after waking up the Wi-Fi interface of the second device. The WUR interface of the device can be used. In this way, the power consumption generated by the WUR interface of the first device is further reduced, thereby further reducing the power consumption of the first device.

In an implementation manner of the embodiment of the present invention, when the power consumption of the Wi-Fi interface of the first device is reduced, in order to ensure that the WUR interface of the first device can still successfully receive the second WUR message from the second device, After the status switch of the Wi-Fi interface of the first device is completed, the WUR interface of the first device is in working state. Therefore, the first device will have the Wi-Fi interface status of the first device. After switching from the working state to the non-working state or the intermittent working state, the following can also be realized:

If the WUR interface of the first device is in an inactive state, an intermittent working state, or a closed state, the first device switches the WUR interface state of the first device to the working state.

Although the WUR interface of the first device is switched to the working state, the power consumption of the WUR interface is increased, but the power consumption of the WUR interface is still lower than the power consumption generated when the Wi-Fi interface of the first device is in the working state. . Therefore, even in this case, the power consumption of the first device can be reduced.

For the reverse wake-up operation, there is a possibility that the second device does not successfully send the second WUR message to the WUR interface of the first device for various reasons, or the WUR interface of the first device receives the first The second WUR message, but for a variety of reasons, the Wi-Fi interface of the second device is not successfully awake. Therefore, in an implementation manner of the embodiment of the present invention, if the Wi-Fi interface of the second device is within a specified time range The Wi-Fi message sent by the first device through the Wi-Fi interface of the first device has not been received. Then, in order to ensure successful establishment of the data communication, the second device may also be first through the Wi-Fi interface of the second device. The WUR interface of the device again sends a message for waking up the Wi-Fi interface of the first device, ie a third WUR message. Therefore, after the second device sends the second WUR message to the WUR interface of the first device by using the Wi-Fi interface of the second device, the following content can also be implemented:

If the Wi-Fi interface of the second device does not receive the Wi-Fi message sent by the first device through the Wi-Fi interface of the first device within the specified time range, the second device passes the Wi-Fi interface of the second device, Sending a third WUR message to the WUR interface of the first device.

The third WUR message is used to instruct the first device to wake up the Wi-Fi interface of the first device.

It should be noted that the specified time range may be pre-configured by the user or the staff according to the historical experience value, and the length of the specified time range may also be set to be larger or smaller according to the delay requirement of the Wi-Fi message to be transmitted. The scope is not limited here.

In this way, the probability of successful establishment of the data communication can be improved, and the second WUR message is not successfully sent, or the second WUR message does not successfully trigger the first device to wake up the Wi-Fi interface of the first device, so that the data communication is performed. The establishment failed.

For the first WUR message carrying the first verification value, the first verification value is used to verify the identity of the first device after the second device receives the first WUR message. After the second device passes the WUR interface of the second device, after receiving the first WUR message sent by the first device by using the WUR interface of the first device, the second device generates a second verification value; and the second device follows the first WUR message. Instructing to wake up the Wi-Fi interface of the second device and generate a second WUR message, which can be specifically implemented as:

If the second verification value is the same as the first verification value, the second device wakes up the Wi-Fi interface of the second device according to the indication of the first WUR message, and generates a second WUR message.

It should be noted that if the second verification value is different from the first verification value, the second device may be deemed to be incapable of establishing data communication with the first device, and the second device may directly discard the first WUR message.

In the embodiment of the present invention, the manner in which the first device generates the first verification value is the same as the manner in which the second device generates the second verification value. In addition, the parameters required by the first device to generate the first verification value may be carried by the first WUR message, so that the second device may also be based on the information carried in the first WUR message and the pre-agreed A rule that generates a verification value is generated to generate a second verification value.

In the embodiment of the present invention, the first verification value may be generated based on all or part of the content of the key shared by the first device and the second device, or based on all the keys shared by the first device and the second device, or Part of the content, and all or part of the content of the identification of the first device or the second device is generated. In the process of generating the first verification value, the hash value calculated by using the hash algorithm, or the partial information of the hash value, or the derivative value of the hash value may be used. The derived value is part or all of the parameters obtained by calculating the hash value at least once after the hash is calculated and the hash value is obtained.

The identifier may be an ID, an identifier of the first device, MAC address information, address information of the WUR interface of the first device, or other information used to indicate the identifier of the first device in the first WUR message, or may be Other information that can uniquely identify the identity of the first device, of course, may also be the above information of the second device. It should be noted that the identifier is not limited to the above content, and may also be an identifier of some hardware located in the first device or the second device.

It should be noted that the second verification value is the same as the first verification value in the calculation manner. Therefore, the calculation manner, the value type, and the like of the first verification value described above are also applicable to the second verification value. No longer.

In the embodiment of the present invention, the first verification value may be a variable parameter in addition to the above-mentioned immutable parameter. Among them, the variable parameter can be used to represent a parameter that changes with time, but is not limited to a parameter that changes with time. For example, when the first device establishes a secure connection with the second device, the value of the counter may be pre-agreed, wherein the value of the counter may be a high value of the TSF value or the TSF value, and at the same time, when the preset counter is used, It is also necessary to agree on the changing rules of the counter. For example, the preset change rule is set based on the period in which the Wi-Fi interface of the second device is woken up. For example, each wake-up period is 100 ms, and the value of the original counter needs to be +1 every 100 ms. Thereby the value of the counter is made variable.

In addition, the first verification value may also be a combination of a variable parameter and an immutable parameter, or a parameter obtained by calculating according to the two types of parameters. For example, the first verification value is based on at least a key shared by the first device and the second device, counter information, and parameters generated by the plaintext information in the transmitted message.

Therefore, the manner of generating the first verification value and the second verification value is not specifically limited in the embodiment of the present invention. The foregoing content is a possible example, and is not used as the first verification value and the second verification. The value is limited.

The first WUR message carries the first verification value, which can improve the security of the data transmission process. If the second device has the access right, the information in the first WUR message can be successfully obtained. It should be noted that, for the second device, even if the second device does not have the right to access the first WUR message, the second device may successfully obtain the parameter for calculating the second verification value.

In the embodiment of the present invention, the first to third WUR messages are mentioned. It should be noted that, for a WUR message, it may be a wake-up packet, that is, a message conforming to the characteristics of the WUR signal. For example, the format of the first to third WUR messages may be a frame structure as shown in FIG. 8. Of course, FIG. 8 is only a possible example, and the frame structure may also be other newly defined or modified. The message format is not limited here. As shown in FIG. 8, in the wireless fidelity preamble, L-STF, L-LTF, and L-SIG are included. In the prior art, the length field in the L-SIG generally indicates the length of the wake-up packet payload, and in the embodiment of the present invention, the length represented by the length field includes at least the wake-up packet payload and the second WUR. The total length of the message, so that sufficient channel resources can be reserved for the second WUR message for the second WUR message transmission.

In addition, for the method steps involved in the embodiment of the present invention, the reverse wakeup indication information carried in the first WUR message sent by the first device to the second device by using the WUR interface of the first device may be used as a trigger condition. It may also be pre-agreed by the first device and the second device. It should be noted that, in the case of a pre-agreed agreement, the pre-agreed refers to the timing of the execution of each of the above steps, and the specific implementation content. In other words, if the first device and the second device agree on the foregoing method steps, the first WUR message sent by the first device may not include the reverse wakeup indication information, and the second device receives the first WUR message. Then, according to the pre-agreed, the second WUR message is generated and the Wi-Fi interface of the second device is awake, and the second WUR message is fed back to the first device, and then the implementation process of the subsequent reverse wake-up is performed. Similarly, the case where the Wi-Fi interface of the second device is busy is also applicable.

The communication process pre-agreed by the first device and the second device may include the following contents:

Generating, by the first device, the first WUR message, and transmitting to the WUR interface of the second device by using the working Wi-Fi interface of the first device; after receiving the first WUR message by the WUR interface of the second device, the second The device wakes up the Wi-Fi interface of the second device (here, the Wi-Fi interface of the second device is in the off state as an example. Referring to the foregoing description, it can be known that the Wi-Fi interface of the second device can also be located. The non-working state, the working state, or the intermittent working state, or the Wi-Fi interface of the second device may also be in a busy state, and generate a second WUR message, and then through the Wi-Fi interface of the second device to the first device The WUR interface sends the WUR interface. In addition, after the first device sends the first WUR message through the Wi-Fi interface of the first device, the first device needs to switch the Wi-Fi interface state of the first device to the non-working state or the intermittent working state. (At this time, if the WUR interface of the first device is in the off state, the intermittent working state, or the non-working state, the first device needs to switch the WUR interface state of the first device to the working state to ensure that the WUR interface can be turned into a working state. Receiving, by the second device, the second WUR message sent by the second device; after the first device receives the second WUR message sent by the second device through the Wi-Fi interface of the second device by using the WUR interface of the first device, the first device The Wi-Fi interface of the first device is awake and communicates with the Wi-Fi interface of the second device through the Wi-Fi interface of the first device. It should be noted that the specific implementation manners of the foregoing steps that are related to or not involved are referred to the foregoing description, and are not described herein. For example, the process of sending a third WUR message, the generation and transmission of the first and second verification values, and the specific implementation process of the wake-up of the Wi-Fi interface.

Therefore, in the embodiment of the present invention, the reason for triggering the reverse wakeup process is not limited. For example, the reverse wakeup indication information may be used as a trigger condition, or the first device and the first device may be agreed by a pre-agreed manner. The interaction process between the two devices.

In the first device and the second device, respectively, devices for establishing data communication may be provided, and the device includes a hardware structure and/or a software module corresponding to each function in order to implement the above functions. Those skilled in the art will readily appreciate that the present invention can be combined with hardware or hardware and computer software in combination with the elements and algorithm steps of the various examples described in the embodiments disclosed herein. To achieve. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

The embodiment of the present invention may perform the division of the function modules on the devices located on the first device and the second device according to the foregoing method. For example, each function module may be divided according to each function, or two or more functions may be integrated. In a processing module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of the module in the embodiment of the present invention is schematic, and is only a logical function division, and the actual implementation may have another division manner.

As shown in FIG. 9, it is a possible structural diagram of a device for establishing data communication on the first device involved in the foregoing embodiment. The apparatus 10 for establishing data communication includes a generating module 11, a switching module 12, a waking module 13, a Wi-Fi interface 14, and a WUR interface 15. Wherein, the generating module 11 is configured to support the establishment of the data communication device 10 to perform step 101 in FIG. 2, FIG. 4 to FIG. 7; the switching module 12 is configured to support the establishment of the data communication device 10 to perform the operations in FIG. 2, FIG. 4 to FIG. Step 103, step 401 in FIG. 7; the device 10 for supporting the establishment of data communication by the wake-up module 13 performs the step 108 in FIG. 2, FIG. 4, FIG. 6, FIG. 7; the Wi-Fi interface 14 is used to support the establishment of data. The communicating device 10 performs steps 102 and 109 in FIG. 2, FIG. 4 to FIG. 7; the WUR interface 15 is used to support the device 10 for establishing data communication to perform step 107 in FIG. 2, FIG. 5 to FIG. 7, in FIG. Step 202. It should be noted that the generating module 11, the switching module 12, and the waking module 13 may be partially or completely integrated on the processing module 20, for example, by the processing module 20, including the generating module 11 and the switching module 12 ( Further, functions that can be implemented by the module including the wake-up module 13), and/or other processes for the techniques described herein may be included, and the wake-up module 13 may be integrated in the processing module 20 described above and/or In the WUR interface 15 (ie, the processing module 20 and the WUR interface 15 may have the ability to implement the functions of the wake-up module 13 alone or in combination); the Wi-Fi interface 14 and the WUR interface 15 may be deployed separately In addition, it can also be integrated on the communication module 21, and the communication module 21 implements functions that can be implemented by the Wi-Fi interface 14 and the WUR interface 15, and is also used to support the device 10 for establishing data communication and other devices such as the second device. Data interaction between them. Furthermore, a memory module 16 can also be provided in the device 10 for establishing data communication. The storage module 16 is configured to store program codes and data of the first device.

The processing module 20 can be implemented as a processor or a controller, such as a CPU, a general purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure. The processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like. The communication module 21 can be implemented as a transceiver, a transceiver circuit, a communication interface, or the like. The storage module 16 can be implemented as a memory.

If the processing module 20 is implemented as a processor, the communication module 21 is implemented as a Wi-Fi interface and a WUR interface, and the storage module 16 is implemented as a memory, as shown in FIG. 10, the apparatus 30 for establishing data communication may include: a processor 31, Wi -Fi interface 32, WUR interface 35, memory 33, and bus 34. The processor 31, the Wi-Fi interface 32, the WUR interface 35, and the memory 33 are connected to each other through a bus 34; the bus 34 can be So the PCI bus or EISA bus. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in FIG. 10, but it does not mean that there is only one bus or one type of bus.

The steps of a method or algorithm described in connection with the present disclosure may be implemented in a hardware, or may be implemented by a processor executing software instructions. The software instructions may be comprised of corresponding software modules that may be stored in RAM, flash memory, ROM, EPROM, EEPROM, registers, hard disk, removable hard drive, CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor to enable the processor to read information from, and write information to, the storage medium. Of course, the storage medium can also be an integral part of the processor. The processor and the storage medium may be deployed in the same device, or the processor and the storage medium may be deployed as separate components in different devices.

FIG. 11 is a schematic structural diagram of a device for establishing data communication on a second device involved in the foregoing embodiment. The apparatus 40 for establishing data communication includes a wake-up module 41, a generation module 42, a Wi-Fi interface 43, and a WUR interface 44. The device 40 for supporting the establishment of data communication performs the wake-up operation in step 105 in FIG. 2, FIG. 4, FIG. 5, FIG. 7, step 302 in FIG. 6, and the generating module 42 is configured to support the establishment of data. The communicating device 40 performs the generating operation in step 105 in FIG. 2, FIG. 4, FIG. 5, FIG. 7, step 303 in FIG. 6, and the Wi-Fi interface 43 is used to support the device 40 for establishing data communication to execute FIG. Steps 106 in FIG. 5 to FIG. 7, step 109 in FIG. 2, FIG. 4 to FIG. 7, step 201 in FIG. 4; the WUR interface 44 is used to support the device 40 for establishing data communication to perform FIG. 2, FIG. 4, and FIG. 5 to step 104 in FIG. It should be noted that the waking module 41 and the generating module 42 can be integrated on the processing module 50, for example, the processing module 50 can implement the functions that the waking module 41 and the generating module 42 can implement, and/or For other processes of the techniques described herein, the wake-up module 41 may be integrated in the processing module 50 described above and/or in the WUR interface 44 (ie, the processing module 50 or the WUR interface 44 may be separate or combined It has the ability to implement the functions of the wake-up module 41; the Wi-Fi interface 43 and the WUR interface 44 can be integrated on the communication module 51 in addition to being separately deployed, and the Wi-Fi interface 43 and the WUR are implemented by the communication module 51. The functions that interface 44 can implement are also used to support data interaction between device 40 that establishes data communication and other devices, such as the first device. Furthermore, a memory module 45 can also be provided in the device 40 for establishing data communication. The storage module 45 is configured to store program codes and data of the first device.

The processing module 50 can be implemented as a processor or a controller, such as a CPU, a general purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure. The processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like. The communication module 51 can be implemented as a transceiver, a transceiver circuit, a communication interface, or the like. The storage module 45 can be implemented as a memory.

If the processing module 50 is implemented as a processor, the communication module 51 is implemented as a Wi-Fi interface and a WUR interface, and the storage module 45 is implemented as a memory, as shown in FIG. 12, the apparatus 60 for establishing data communication may include: a processor 61, Wi -Fi interface 62, WUR interface 65, memory 63, and bus 64. The processor 61, the Wi-Fi interface 62, the WUR interface 65, and the memory 63 may be connected to each other through a bus 64; 64 can be a PCI bus or an EISA bus. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 12, but it does not mean that there is only one bus or one type of bus.

The apparatus provided by the embodiment of the present invention may be understood that the processor of the apparatus may execute a corresponding method (including controlling related hardware, such as a transceiver, by calling a program and/or an instruction and/or data in the memory. To perform related operations).

The related parts of the method embodiments of the present invention may be referred to each other; the apparatus provided in each device embodiment is used to perform the method provided by the corresponding method embodiment, so each device embodiment may refer to related methods in the related method embodiments. Partial understanding.

The device configuration diagrams given in the various device embodiments of the present invention show only a simplified design of the corresponding device. In practical applications, the apparatus may include any number of transceivers (which may include transmitters and receivers), processors, memories, etc., to implement the functions or operations performed by the apparatus in various embodiments of the present invention, and all The devices that can implement the present application are all within the scope of the present application.

Those skilled in the art should appreciate that in one or more of the above examples, the functions described in the embodiments of the present invention may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored in a computer readable medium or transmitted as one or more instructions or code on a computer readable medium. Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another. A storage medium may be any available media that can be accessed by a general purpose or special purpose computer.

The specific embodiments of the present invention have been described in detail with reference to the embodiments of the present invention. The scope of the invention is to be construed as being included in the scope of the embodiments of the invention.

Claims

A method of establishing data communication, the method comprising:

The first device generates a first wake-up radio/wake-up receiver WUR message;

The first device sends the first WUR message to a WUR interface of the second device by using a wireless fidelity Wi-Fi interface of the first device in an active state, where the first WUR message is used to indicate the first The second device wakes up the Wi-Fi interface of the second device, and sends a second WUR message by using the Wi-Fi interface of the second device; the first WUR message carries reverse wakeup indication information, the reverse The waking indication information is used to indicate that the second device sends the second WUR message by using the Wi-Fi interface of the second device, where the second WUR message is used to indicate that the first device wakes up the first device Wi-Fi interface;

After the first device sends the first WUR message, the first device switches the Wi-Fi interface state of the first device from the working state to a non-working state or a duty cycle working state;

Receiving, by the first device, the second WUR message sent by the second device by using the Wi-Fi interface of the second device by using the WUR interface of the first device;

After the first device receives the second WUR message, the first device wakes up the Wi-Fi interface of the first device, and passes the Wi-Fi interface of the first device with the second device. Wi-Fi interface communication.
The method according to claim 1, wherein when the first device transmits the first WUR message to a WUR interface of the second device through a Wi-Fi interface of the first device in an active state, The WUR interface of the second device is in a first wake-up window, the first wake-up window includes a wake-up window of the WUR interface of the second device, and a wake-up window of the first device's Wi-Fi interface Any one of a window, and a wake-up window overlapping between a wake-up window of the Wi-Fi interface of the first device and a wake-up window of the WUR interface of the second device, wherein waking up The window is used to indicate when the interface is working.
The method according to claim 1 or 2, wherein the non-working state comprises a standby state, a shallow sleep state, an idle state, and a power saving state. State, sleep state, and doze state.
The method according to any one of claims 1 to 3, wherein the first WUR message carries time information, and the time information is used to indicate that the second device sends the first device to the first device. The time of the second WUR message.
The method according to claim 4, wherein the first device receives, by the WUR interface of the first device, the first device, by using a Wi-Fi interface of the second device Two WUR messages, including:

Receiving, by the first device, the second WUR sent by the second device by using the Wi-Fi interface of the second device by using the WUR interface of the first device in the time range indicated by the time information Message.
The method according to any one of claims 1 to 5, wherein the first WUR message carries a wireless fidelity preamble Wi-Fi preamble, the length of the Wi-Fi preamble The length of time that the degree domain carries at least includes the total time required by the first device to send the first WUR message and the second device to send the second WUR message.
The method according to any one of claims 1 to 6, wherein the first device switches a Wi-Fi interface state of the first device from the working state to an inactive state or intermittent mode After the working state, the method further includes:

If the WUR interface of the first device is in the non-working state, the intermittent working state, or the closed state, the first device switches the WUR interface state of the first device to the working state.
A method of establishing data communication, the method comprising:

Receiving, by the second device, the wake-up radio/wake-up receiver WUR interface, the first device sends the first device to the WUR interface of the second device by using the wireless fidelity Wi-Fi interface of the first device a WUR message, the first WUR message is used to indicate that the second device wakes up the Wi-Fi interface of the second device, and sends a second WUR message by using the Wi-Fi interface of the second device; The WUR message carries the reverse wakeup indication information, where the reverse wakeup indication information is used to indicate that the second device sends the second WUR message by using the Wi-Fi interface of the second device, where the second WUR message The message is used to instruct the first device to wake up the Wi-Fi interface of the first device;

The second device wakes up the Wi-Fi interface of the second device according to the indication of the first WUR message, and generates and sends the second WUR message.

The sending, by the second device, the second WUR message includes: after the second device wakes up the Wi-Fi interface of the second device, the second device passes the Wi-Fi interface of the second device, Sending the second WUR message to the WUR interface of the first device;

After the second device sends the second WUR message, the second device communicates with the Wi-Fi interface of the first device by using a Wi-Fi interface of the second device.
The method according to claim 8, wherein the second device receives the WUR of the first device through the Wi-Fi interface of the first device to the second device through the WUR interface of the second device When the first WUR message is sent by the interface, the WUR interface of the second device is in a first wake-up window, and the first wake-up window includes a wake-up window of the WUR interface of the second device, the first a wake-up window of the WUR interface of the device, and any one of the wake-up windows overlapped between a wake-up window of the WUR interface of the first device and a wake-up window of the WUR interface of the second device , where the wake-up window is used to indicate when the interface is in working state.
The method of claim 8 or 9, wherein the first WUR message carries time information, and the second device passes the Wi-Fi interface of the second device to the first device. The sent WUR interface sends the second WUR message, specifically:

The second device sends the second WUR message to the WUR interface of the first device by using the Wi-Fi interface of the second device in the time range indicated by the time information.
The method according to any one of claims 8 to 10, wherein the first WUR message carries a wireless fidelity preamble Wi-Fi preamble, and the length of time length carried in the Wi-Fi preamble At least the total time required for the first device to send the first WUR message and the second device to send the second WUR message.
The method according to any one of claims 8 to 11, wherein the second device transmits the number to the WUR interface of the first device through a Wi-Fi interface of the second device In the case of the second WUR message, the WUR interface of the first device is in a second wake-up window, and the second wake-up window includes a wake-up window of the WUR interface of the first device, and Wi- of the second device. a wake-up window of the Fi interface, and any one of the wake-up windows overlapped between a wake-up window of the WUR interface of the first device and a wake-up window of the Wi-Fi interface of the second device , where the wake-up window is used to indicate when the interface is in working state.
An apparatus for establishing data communication, wherein the apparatus is applied to a first device, the apparatus comprising:

Generating a module, configured to generate a first wake-up radio/wake-up receiver WUR message;

a wireless fidelity Wi-Fi interface, configured to send the first WUR message generated by the generating module to a WUR interface of the second device by using a Wi-Fi interface of the first device in a working state, where the first The WUR message is used to indicate that the second device wakes up the Wi-Fi interface of the second device, and sends a second WUR message by using the Wi-Fi interface of the second device; the first WUR message carries a reverse The waking indication information, the reverse waking indication information is used to indicate that the second device sends the second WUR message to the WUR interface of the first device by using a Wi-Fi interface of the second device, where The second WUR message is used to instruct the first device to wake up the Wi-Fi interface of the first device;

a switching module, configured to switch a Wi-Fi interface state of the first device from the working state to an inactive state or intermittent after the first WUR message is sent by the Wi-Fi interface of the first device Duty cycle working state;

a WUR interface, configured to receive the second WUR message sent by the second device by using a Wi-Fi interface of the second device;

a wake-up module, configured to wake up the Wi-Fi interface of the first device after receiving the second WUR message by the WUR interface of the first device;

The Wi-Fi interface of the first device is further configured to communicate with the Wi-Fi interface of the second device after being awake.
The apparatus according to claim 13, wherein when the first device transmits the first WUR message to a WUR interface of the second device by using a Wi-Fi interface of the first device in an active state, The WUR interface of the second device is in a first wake-up window, the first wake-up window includes a wake-up window of the WUR interface of the second device, and a wake-up window of the first device's Wi-Fi interface Any one of a window, and a wake-up window overlapping between a wake-up window of the Wi-Fi interface of the first device and a wake-up window of the WUR interface of the second device, wherein waking up The window is used to indicate when the interface is working.
The apparatus according to claim 13 or 14, wherein the non-working state comprises a standby state, a shallow sleep state, an idle state, and a power saving state. State, sleep state, and doze state.
The device according to any one of claims 13 to 15, wherein the first WUR message carries time information, and the time information is used to indicate that the second device is to the first The time at which a device sends the second WUR message.
The device according to claim 16, wherein the WUR interface of the first device is configured to receive the second WUR message sent by the Wi-Fi interface of the second device, specifically:

The WUR interface of the first device is configured to receive, by the second device, the second WUR message sent by the second device by using the Wi-Fi interface of the second device, within a time range indicated by the time information.
The device according to any one of claims 13 to 17, wherein the first WUR message carries a wireless fidelity preamble Wi-Fi preamble, and the length of time in the length field in the Wi-Fi preamble At least the total time required for the first device to send the first WUR message and the second device to send the second WUR message.
The apparatus according to any one of claims 13 to 18, wherein the first device switches a Wi-Fi interface state of the first device from the working state to an inactive state or intermittent After the working state, the switching module is further configured to:

And if the WUR interface of the first device is in the non-working state, the intermittent working state, or the closed state, switching the WUR interface state of the first device to the working state.
An apparatus for establishing data communication, wherein the apparatus is applied to a second device, the apparatus comprising:

Wake-up radio/wake-up receiver WUR interface, configured to receive a first WUR message sent by the first device to the WUR interface of the second device by using the wireless fidelity Wi-Fi interface of the first device, the first WUR The message is used to indicate that the second device wakes up the Wi-Fi interface of the second device, and sends a second WUR message by using the Wi-Fi interface of the second device; the first WUR message carries a reverse wakeup Instructing information, the reverse wake-up indication information is used to indicate that the second device sends the second WUR message to the WUR interface of the first device by using a Wi-Fi interface of the second device, where the second device The WUR message is used to instruct the first device to wake up the Wi-Fi interface of the first device;

a wake-up module, configured to wake up the Wi-Fi interface of the second device according to the indication of the first WUR message received by the WUR interface of the second device;

a generating module, configured to generate the second WUR message according to the indication of the first WUR message;

The Wi-Fi interface is configured to send the second WUR message to the WUR interface of the first device, and is further configured to communicate with a Wi-Fi interface of the first device that is awake according to the second WUR message.
The device according to claim 20, wherein the second device receives the WUR of the first device through the Wi-Fi interface of the first device to the second device through the WUR interface of the second device When the first WUR message is sent by the interface, the WUR interface of the second device is in a first wake-up window, and the first wake-up window includes a wake-up window of the WUR interface of the second device, the first a wake-up window of the WUR interface of the device, and any one of the wake-up windows overlapped between a wake-up window of the WUR interface of the first device and a wake-up window of the WUR interface of the second device , where the wake-up window is used to indicate when the interface is in working state.
The device of claim 20 or 21, wherein the first WUR message carries time information, and the Wi-Fi interface of the second device is used to send the WUR interface to the first device. The second WUR message is specifically:

Within the time range indicated by the time information, through the Wi-Fi interface of the second device, The WUR interface of the first device sends the second WUR message.
The device according to any one of claims 20 to 22, wherein the first WUR message carries a wireless fidelity preamble Wi-Fi preamble, and the length of time length carried in the Wi-Fi preamble At least the total time required for the first device to send the first WUR message and the second device to send the second WUR message.
The apparatus according to any one of claims 20 to 23, wherein the second device transmits the first to a WUR interface of the first device via a Wi-Fi interface of the second device In the case of the second WUR message, the WUR interface of the first device is in a second wake-up window, and the second wake-up window includes a wake-up window of the WUR interface of the first device, and Wi- of the second device. a wake-up window of the Fi interface, and any one of the wake-up windows overlapped between a wake-up window of the WUR interface of the first device and a wake-up window of the Wi-Fi interface of the second device , where the wake-up window is used to indicate when the interface is in working state.
An apparatus for establishing data communication, wherein the apparatus is applied to a first device, the apparatus comprising:

a processor, configured to generate a first wake-up radio/wake-up receiver WUR message;

a wireless fidelity Wi-Fi interface, configured to send, by the Wi-Fi interface of the first device in an active state, the first WUR message generated by the processor to a WUR interface of the second device, where the first The WUR message is used to indicate that the second device wakes up the Wi-Fi interface of the second device, and sends a second WUR message by using the Wi-Fi interface of the second device; the first WUR message carries a reverse The waking indication information, the reverse waking indication information is used to indicate that the second device sends the second WUR message to the WUR interface of the first device by using a Wi-Fi interface of the second device, where The second WUR message is used to instruct the first device to wake up the Wi-Fi interface of the first device;

The processor is further configured to: after the first WUR message is sent by the Wi-Fi interface of the first device, switch the Wi-Fi interface state of the first device from the working state to the non-working State or duty cycle working state;

a WUR interface, configured to receive the second WUR message sent by the second device by using a Wi-Fi interface of the second device;

The WUR interface of the processor and/or the first device is further configured to wake up the Wi-Fi interface of the first device after receiving the second WUR message by the WUR interface of the first device;

The Wi-Fi interface of the first device is further configured to communicate with the Wi-Fi interface of the second device after being awake.
The apparatus according to claim 25, wherein when the first device transmits the first WUR message to a WUR interface of the second device through a Wi-Fi interface of the first device in an active state, The WUR interface of the second device is in a first wake-up window, the first wake-up window includes a wake-up window of the WUR interface of the second device, and a wake-up window of the first device's Wi-Fi interface Any one of a window, and a wake-up window overlapping between a wake-up window of the Wi-Fi interface of the first device and a wake-up window of the WUR interface of the second device, wherein waking up The window is used to indicate when the interface is working.
Device according to claim 25 or 26, wherein said non-working state package Including a standby state, a shallow sleep state, an idle state, a power saving state, a sleep state, and a doze state. Kind.
The device according to any one of claims 13 to 15, wherein the first WUR message carries time information, and the time information is used to indicate that the second device sends the first device to the first device. The time of the second WUR message.
The device according to claim 28, wherein the WUR interface of the first device is configured to receive the second WUR message sent by the Wi-Fi interface of the second device, specifically:

The WUR interface of the first device is configured to receive, by the second device, the second WUR message sent by the second device by using the Wi-Fi interface of the second device, within a time range indicated by the time information.
The device according to any one of claims 25 to 29, wherein the first WUR message carries a wireless fidelity preamble Wi-Fi preamble, and the length of time in the length field in the Wi-Fi preamble At least the total time required for the first device to send the first WUR message and the second device to send the second WUR message.
The apparatus according to any one of claims 25 to 30, wherein the first device switches a Wi-Fi interface state of the first device from the working state to an inactive state or intermittent After the working state, the processor is further configured to:

And if the WUR interface of the first device is in the non-working state, the intermittent working state, or the closed state, switching the WUR interface state of the first device to the working state.
An apparatus for establishing data communication, wherein the apparatus is applied to a second device, the apparatus comprising:

Wake-up radio/wake-up receiver WUR interface, configured to receive a first WUR message sent by the first device to the WUR interface of the second device by using the wireless fidelity Wi-Fi interface of the first device, the first WUR The message is used to indicate that the second device wakes up the Wi-Fi interface of the second device, and sends a second WUR message by using the Wi-Fi interface of the second device; the first WUR message carries a reverse wakeup Instructing information, the reverse wake-up indication information is used to indicate that the second device sends the second WUR message to the WUR interface of the first device by using a Wi-Fi interface of the second device, where the second device The WUR message is used to instruct the first device to wake up the Wi-Fi interface of the first device;

The WUR interface of the processor and/or the second device is configured to wake up the Wi-Fi interface of the second device according to the indication of the first WUR message received by the WUR interface of the second device;

The processor is further configured to generate the second WUR message according to the indication of the first WUR message;

a Wi-Fi interface, configured to send the second WUR message to the WUR interface of the first device, the Wi-Fi interface of the second device, and the second device to send the After the second WUR message, the Wi-Fi interface of the second device communicates with the Wi-Fi interface of the first device that is awake according to the second WUR message.
The device according to claim 32, wherein the second device receives the WUR of the first device through the Wi-Fi interface of the first device to the second device through the WUR interface of the second device When the first WUR message is sent by the interface, the WUR interface of the second device is in the first wake-up window, and the first wake-up window includes a wake-up window of the WUR interface of the second device. a wake-up window of the WUR interface of the first device, and a wake-up window overlapped between a wake-up window of the WUR interface of the first device and a wake-up window of the WUR interface of the second device Any one of them, where the wake-up window is used to indicate when the interface is in working state.
The device of claim 32 or 33, wherein the first WUR message carries time information, and the Wi-Fi interface of the second device is used to send the WUR interface to the first device. The second WUR message is specifically:

The Wi-Fi interface of the second device is configured to send the second WUR message to the WUR interface of the first device within a time range indicated by the time information.
The device according to any one of claims 32 to 34, wherein the first WUR message carries a wireless fidelity preamble Wi-Fi preamble, and the length of time in the length field in the Wi-Fi preamble At least the total time required for the first device to send the first WUR message and the second device to send the second WUR message.
The apparatus according to any one of claims 32 to 35, wherein the second device transmits the first to a WUR interface of the first device via a Wi-Fi interface of the second device In the case of the second WUR message, the WUR interface of the first device is in a second wake-up window, and the second wake-up window includes a wake-up window of the WUR interface of the first device, and Wi- of the second device. a wake-up window of the Fi interface, and any one of the wake-up windows overlapped between a wake-up window of the WUR interface of the first device and a wake-up window of the Wi-Fi interface of the second device , where the wake-up window is used to indicate when the interface is in working state.