WO2018120661A1

WO2018120661A1 - Method and device for wireless communication

Info

Publication number: WO2018120661A1
Application number: PCT/CN2017/088070
Authority: WO
Inventors: 韩云博; 丁志明; 杨云松; 程勇; 李小仙
Original assignee: 华为技术有限公司
Priority date: 2016-12-28
Filing date: 2017-06-13
Publication date: 2018-07-05
Also published as: CN109644403A; CN109644403B

Abstract

The present application provides a method for wireless communication in a wireless network. The method is capable of sending multiple wake-up frames in a short time period, and reducing occupation of wireless channel resources. The method comprises: a first device sends a first message to a first interface of each of multiple second devices in a broadcast or multicast manner, the first message being used for indicating the second device that receives the first message to turn off a sleep mechanism of the first interface of the second device, and the sleep mechanism of the first interface of the second device comprising periodic open and close of the first interface of the second device; after the first device sends the first message, the first device sends a second message to the first interface of at least one of the multiple second devices, the second message being used for indicating the at least one second device to open a second interface of the at least one second device, so that the first device communicates with the at least one second device by means of the second interface of the at least one second device; after the first device sends the second message, the first device sends a third message to the first interface of each of the multiple second devices in a broadcast or multicast manner, the third message being used for indicating the second device that receives the third message to turn on the sleep mechanism of the first interface of the second device.

Description

Method and device for wireless communication

The present application claims priority to Chinese Patent Application No. 201611238376.1, entitled "Instruction Method and Apparatus for a WUR Message", filed on December 28, 2016, the entire contents of which is incorporated herein by reference. In the application.

Technical field

The present application relates to the field of communications and, more particularly, to a method and apparatus for wireless communication.

Background technique

With the evolution of the Wireless Local Area Network (WLAN) standard, in a Wireless Fidelity (Wi-Fi) network, when a terminal does not receive or send a message, a large part of the energy is wasted in the listening channel. In the wireless signal, the terminal uses Low Power Wake Up Radio (LP-WUR) (hereinafter referred to as WUR) instead of the wireless transceiver to listen to the channel when the medium is idle, so the terminal in addition to the wireless transceiver, Equipped with WUR. When the wireless transceiver of the terminal enters deep sleep, the low-power WUR of the terminal can wake up and start working. When the AP needs to communicate with the terminal equipped with the WUR and the wireless transceiver, the AP sends a WUR message to the WUR of the terminal, such as a Wake Up Packet (WUP), and the WUR of the terminal correctly receives the WUP sent to itself and wakes up the terminal. The wireless transceiver, then the terminal's WUR can go to sleep, and the AP communicates with the terminal's awake wireless transceiver. After the terminal's wireless transceiver communicates with the AP, it will go to sleep. At the same time, the terminal's WUR wakes up and starts to listen to whether there is a WUP sent to itself, so as to wake up the terminal's wireless transceiver again.

To further reduce power consumption, WUR introduces a sleep mechanism, which means that the WUR is periodically turned on (wake up) or turned off. When the WUR adopts the sleep mechanism, the WUP sent by the access point can be received only when the WUR is enabled. If the access point needs to wake up multiple terminals in a short period of time, that is, it needs to send multiple WUPs in a short time, and the WUR opening time of multiple terminals is short, the access point may not be able to be in a WUR open time (WUR After a plurality of WUPs are sent in a wake-up window, the access point needs to wait until the next WUR open time to continue sending the unsent WUP, which causes a long time to wake up multiple terminals; or the access point is in a short time A large amount of WUR information that needs to be sent when waking up multiple terminals will occupy too much resources of the wireless channel.

Therefore, how to enable an access point to send multiple wake-up frames in a short time and reduce the occupation of wireless channel resources is an urgent problem to be solved.

Summary of the invention

The embodiment of the present application provides a method and an apparatus for wireless communication, and provides a method for waking up a device.

Embodiments provided herein include any of the following:

A method of communication for a first device, the method comprising:

The first device sends a first message to the first interface of the multiple second devices, where the first interface of the multiple second devices is closed, so that the first interface of the multiple second devices is received After the first message, the first interface is awake;

The first message is a broadcast or multicast message;

Transmitting, by the first device, a second message to a first interface of the first part of the second device, a second interface for waking up the first portion of the second device, so that the first device communicates with the second interface of the first portion of the second device that is awake;

The first device sends a third message to the first interface of the multiple second devices, where the dormancy mechanism of the first interface of the multiple second devices is started, and the first of the multiple second devices The interface will periodically sleep to save energy;

The third message is a broadcast or multicast message.

By turning off the sleep mechanism of all associated terminals WUR, the AP can have sufficient time to wake up the wireless transceivers of multiple terminals, and then turn on the sleep mechanism of all associated terminals WUR to save energy.

2. The method as described in 1:

The first device periodically sends a fourth message to the first interface of the multiple second devices, and the carried indication information indicates that the first device hopes that the dormancy mechanism of the first interface of the multiple second devices remains open. Or off; so that the first interface of the second device that does not receive the first message or the third message is in the correct sleep mechanism.

If a terminal WUR does not receive the first message but receives the fourth message after the first message and before the third message, the sleep mechanism of the terminal WUR may be closed according to the indication in the fourth message to receive the second message. If the terminal does not receive the third message, the sleep mechanism of the terminal WUR can be enabled by the indication in the subsequent fourth message to save the WUR energy consumption.

3. The method as described in 1 or 2:

If the first device and the second device do not need to maintain clock synchronization, the first device continuously sends a plurality of the first messages to the first interface of the multiple second devices, at least continuing the a sleep period of the first interface of the second device, and the interval between the two adjacent first messages is smaller than the length of the awake period of the first interface of the second device.

In the asynchronous mode, one of the feature points of the embodiment of the present application ensures that the terminal WUR can receive the first message.

4. The method as described in 1 or 2:

If the first device and the second device need to maintain clock synchronization, the first device sends the first message in an awake window of the first interface of the plurality of second devices.

In the synchronous mode, one of the feature points of the embodiment of the present application only needs to send a first message.

5. A method of communication for a second device, the method comprising:

The first interface of the second device receives the first message sent by the first device, and is used to disable the sleep mechanism of the first interface of the second device, so that the first interface of the second device receives the first message After the first interface is awake;

The first message is a broadcast or multicast message;

The first interface of the second device receives the second message sent by the first device, and is used to wake up the second interface of the second device, so as to pass the awakened second interface with the first device. Communicate

The first interface of the second device receives a third message sent by the first device, and is used to enable a sleep mechanism of the first interface of the second device, where the first interface of the second device periodically sleeps To save energy;

The third message is a broadcast or multicast message.

6. The method as described in 5:

The first interface of the second device periodically receives the fourth message sent by the first device, and the carried indication information indicates that the first device wants the sleep mechanism of the first interface of the second device to remain on or off. So that the first interface of the second device that did not receive the first message or the third message is in the correct sleep mechanism.

If a terminal WUR does not receive the first message but receives the fourth message after the first message and before the third message, the sleep mechanism of the terminal WUR may be closed according to the indication in the fourth message to receive the second message. If the terminal WUR does not receive the third message, the sleep mechanism of the terminal WUR can be enabled by the indication in the subsequent fourth message to save the WUR energy consumption.

7. A first device, the first device comprising:

a first interface, configured to send a first message to the first interface of the multiple second devices, to disable the sleep mechanism of the first interface of the multiple second devices, so that the first interface of the multiple second devices After the first message is received, the first interface of the plurality of second devices is awake; the first message is a broadcast or multicast message;

The first interface is further configured to send a second message to the first interface of the first part of the second device to wake up the second interface of the first part of the second device;

The first interface is further configured to send a third message to the first interface of the multiple second devices, to enable a sleep mechanism of the first interface of the multiple second devices, where the multiple The first interface of the device will periodically sleep to save energy; the third message is a broadcast or multicast message;

a second interface, configured to communicate, by the first device, with the second interface of the first part of the second device that is awake;

a processor, configured to generate the first message, the second message, and the third message, and generate and parse a message that communicates with the second interface of the second device; Said method;

a memory for storing program code and instructions;

An antenna for transmitting and receiving messages from a wireless medium;

8. The first device as described in 7:

The first interface is further configured to send, by the first device, a fourth message, where the indication information that is instructed by the first device is that the sleep mechanism of the first interface of the multiple second devices is kept on or off; The first interface of the second device that does not receive the first message or the third message is in a correct sleep mechanism;

The processor is further configured to generate the fourth message;

9. The first device as described in 7 or 8:

If the first device and the second device do not need to maintain clock synchronization, the first interface is further used by the first device to continuously send the plurality of the first interfaces to the first interfaces of the multiple second devices. The message continues for at least one sleep period of the first interface of the second device, and the interval between the two adjacent first messages is smaller than the length of the awake period of the first interface of the second device.

10. The first device as described in 7 or 8:

If the first device and the second device need to maintain clock synchronization, the first interface is further used to The first device sends the first message in an awake window of the first interface of the plurality of second devices.

11. A second device, the second device comprising:

a first interface, configured to receive, by the second device, the first message sent by the first device, to disable the dormancy mechanism of the first interface, so that the first interface keeps the first interface after receiving the first message Wake up; the first message is a broadcast or multicast message;

The first interface is further configured to receive, by the second device, a second message sent by the first device, to wake up the second interface, to perform, by using the second interface that is awake with the first device. Communication

The first interface is further configured to receive, by the second device, a third message sent by the first device, to enable a sleep mechanism of the first interface, where the first interface periodically sleeps to save Energy consumption; the third message is a broadcast or multicast message;

The second interface is configured to communicate with the first device after waking up;

a processor, configured to parse the first message, the second message, and the third message, and generate and parse the message that the second interface communicates with the first device; and is further configured to perform any of the foregoing rights 5-6 Method described

a memory for storing program code and instructions;

An antenna for transmitting and receiving messages from a wireless medium.

12. The second device as recited in 11:

The first interface is further configured to receive, by the second device, a fourth message, where the indication information that is instructing, by the first device, that the dormancy mechanism of the first interface is kept on or off, so that the The first message, or the first interface of the third message, is in a correct sleep mechanism;

The processor is further configured to parse the fourth message.

DRAWINGS

1 is a schematic diagram of a communication system of a method and apparatus for wireless communication in accordance with the present application.

2 is a schematic flow chart of a method of wireless communication in accordance with the present application.

3 is a schematic diagram of a sleep mechanism of a first interface in accordance with the present application.

4 is a schematic diagram of transmitting a first message in accordance with the present application.

FIG. 5 is a schematic diagram of transmitting a first message in accordance with the present application.

6 is a schematic diagram of transmitting a first message in accordance with the present application.

7 is a structural block diagram of a WUR message according to the present application.

Figure 8 is a block diagram showing the structure of a first message in accordance with the present application.

9 is a schematic block diagram of a first device in accordance with the present application.

Figure 10 is a schematic block diagram of a first device in accordance with the present application.

Figure 11 is a schematic block diagram of a second device in accordance with the present application.

detailed description

The technical solutions in the present application will be described below with reference to the accompanying drawings.

1 is a schematic diagram of a communication system using a method and apparatus for wireless communication of the present application. As shown in FIG. 1, the communication system 100 includes a network device 102, which may include multiple antennas, such as

antennas

104, 106, 108, 110, 112, and 114. Additionally, network device 102 may additionally include a transmitter chain and a receiver chain, as will be understood by those of ordinary skill in the art, which may include multiple components related to signal transmission and reception (eg, processor, modulator, multiplexer) , demodulator, demultiplexer or antenna, etc.).

Network device 102 can communicate with a plurality of terminal devices, such as terminal device 116 and terminal device 122. However, it will be appreciated that network device 102 can communicate with any number of target terminal devices similar to terminal device 116 or 122.

As shown in FIG. 1, terminal device 116 is in communication with

antennas

112 and 114, wherein

antennas

112 and 114 transmit information to terminal device 116 over forward link 118 and receive information from terminal device 116 over reverse link 120. In addition, terminal device 122 is in communication with

antennas

104 and 106, wherein

antennas

104 and 106 transmit information to terminal device 122 over forward link 124 and receive information from terminal device 122 over reverse link 126.

For example, in a Frequency Division Duplex (FDD) system, for example, forward link 118 can use a different frequency band than reverse link 120, and forward link 124 can be used differently than reverse link 126. Frequency band.

As another example, in a Time Division Duplex (TDD) system and a Full Duplex (FD) system, the forward link 118 and the reverse link 120 can use a common frequency band, the forward link 124 and Reverse link 126 can use a common frequency band.

Each antenna (or set of antennas consisting of multiple antennas) and/or regions designed for communication is referred to as a sector of network device 102. For example, the antenna group can be designed to communicate with terminal devices in sectors of the network device 102 coverage area. In the process in which network device 102 communicates with terminal devices 116 and 122 via

forward links

118 and 124, respectively, the transmit antenna of network device 102 may utilize beamforming to improve the signal to noise ratio of

forward links

118 and 124. In addition, when the network device 102 uses beamforming to transmit signals to the randomly dispersed terminal devices 116 and 122 in the relevant coverage area, the network device 102 uses a single antenna to transmit signals to all of its terminal devices. Mobile devices are subject to less interference.

At a given time, network device 102, terminal device 116, or terminal device 122 may be a wireless communication transmitting device and/or a wireless communication receiving device. When transmitting data, the wireless communication transmitting device can encode the data for transmission. In particular, the wireless communication transmitting device may acquire (eg, generate, receive from other communication devices, or store in memory, etc.) a certain number of target data bits to be transmitted to the wireless communication receiving device over the channel. Such data bits may be included in a transport block (or multiple transport blocks) of data that may be segmented to produce multiple code blocks.

In addition, the communication system 100 may be a public land mobile network (PLMN) network or other network. FIG. 1 is only a simplified schematic diagram of an example, and the network may also include other network devices, which are not shown in FIG. .

Optionally, in the embodiment of the present application, the network device may be a device that communicates with the terminal device, for example, a base station or a base station controller. Each network device can provide communication coverage for a specific geographic area, and can communicate with terminal devices (eg, UEs) located within the coverage area (cell), the network device can support different standard communication protocols, or can support different Communication mode. For example, the network device may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, or may be a base station (NodeB, NB) in a WCDMA system, or may be an evolved base station in an LTE system (Evolutional Node B, An eNB or an eNodeB), or a wireless controller in a Cloud Radio Access Network (CRAN), or the network device may be a network device in a future 5G network, such as a gNB or a small station or a micro station. A transmission reception point (TRP) may also be a relay station, an access point, or a network device in a publicly evolved Public Land Mobile Network (PLMN).

Optionally, in the embodiment of the present application, the terminal device may refer to an access terminal, a user equipment (User Equipment, UE), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile terminal, and a user. Terminal, terminal, wireless communication device, user agent or user device. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication. Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in the Internet of Things, virtual reality devices, terminal devices in future 5G networks, or future evolved public land mobile networks Terminal equipment in the (Public Land Mobile Network, PLMN).

The method and device for wireless communication provided by the embodiments of the present application may be applied to a terminal device, where the terminal device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory (also referred to as main memory). The operating system may be any one or more computer operating systems that implement business processing through a process, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a Windows operating system. The application layer includes applications such as a browser, an address book, word processing software, and instant messaging software.

Furthermore, various aspects or features of the present application can be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. The term "article of manufacture" as used in this application encompasses a computer program accessible from any computer-readable device, carrier, or media. For example, the computer readable medium may include, but is not limited to, a magnetic storage device (eg, a hard disk, a floppy disk, or a magnetic tape, etc.), such as a compact disc (CD), a digital versatile disc (Digital Versatile Disc, DVD). Etc.), smart cards and flash memory devices (eg, Erasable Programmable Read-Only Memory (EPROM), cards, sticks or key drivers, etc.). Additionally, various storage media described herein can represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" may include, but is not limited to, a variety of media capable of storing, containing, and/or carrying instructions and/or data.

It should be understood that the first device in this application may be a network device, and the second device may be a terminal device.

For a better understanding of the present application, the present application will be described below with reference to FIGS. 2-11, with the same or similar system as the system shown in FIG.

2 is a schematic flow diagram of a method 200 of wireless communication in accordance with the present application. As shown in FIG. 2, the method 200 includes the following.

S210, the first device sends a first message to the first interface of each of the plurality of second devices, where the first message is used to indicate that the second device that receives the first message closes the second device The sleep mechanism of the first interface, the sleep mechanism of the first interface of the second device includes the periodic opening and closing of the first interface of the second device, where the first message is a broadcast message or a multicast message.

The second device includes a wireless transceiver and a Low Power Wake Up Radio (LP-WUR) (hereinafter referred to as WUR), and the low power wakeup receiver performs the first interface with the first device. Communication. The sleep mechanism of the first interface of the second device is that the WUR is periodically turned on or off. That is, the sleep mechanism of the first interface of the second device includes the first interface of the second device being periodically turned on and off.

For example, the sleep mechanism of the WUR of the second device is 100 ms, that is, a sleep period is 100 ms, wherein 30 ms is a WUR wake-up period, during which the WUR can listen to the channel to receive the WUR signal, remaining in a sleep cycle. The 70ms is the WUR sleep cycle, during which the WUR transitions from wake-up to sleep to save energy. As shown in FIG. 3, FIG. 3 is a schematic diagram of a sleep cycle of the second device. The sleep cycle includes an awake window and a sleep window. The WUR wake-up window refers to which 30 ms the WUR stays awake during the 100 ms period to receive the WUR. Signal; WUR wake-up window length refers to the length of time WUR wakes up in each sleep cycle, such as 30ms; WUR sleep window refers to which 70ms WUR enters sleep during this 100ms period.

It should be understood that the sleep period of the second device, the length of the wake-up window and the length of the sleep window are merely examples. In practical applications, the sleep period of the second device, the length of the wake-up window, and the length of the sleep window. There may be different values, which are not limited in this application.

Optionally, the first device is a wireless communication device having the capability of transmitting a message of a low power wake-up receiver, the second device being a wireless communication device having the capability of receiving a message of a low power wake-up receiver.

Optionally, the first interface is configured to receive a message of the low power wakeup receiver.

Optionally, the first device and the multiple second devices are in an asynchronous working mode, where the first interface of the multiple second devices and the clock of the first device do not need to be synchronized, the first The device sends the first message to the first interface of each of the plurality of second devices in a broadcast or multicast manner, including:

The first device continuously sends a plurality of the first messages to the first interface of the multiple second devices in the first time period.

The interval at which the first device sends the two adjacent first messages is less than or equal to a continuous open period of the first interface of the second device in each of the second devices in a sleep period, the first The duration of a period of time is greater than or equal to the duration of one of the sleep periods of the one of the second devices of each of the second devices.

Specifically, the asynchronous working mode is that the first interface of the multiple second devices and the clock of the first device do not need to be synchronized, that is, the first device only knows that the WUR of the second device periodically wakes up or Closed, but the first device does not know at which point the WUR of the second device wakes up or shuts down. The first device, in order to ensure that the second device receives the first message in a dormant mechanism, the first device continuously sends the first message to the interfaces of the multiple second devices in the first time period. a message, wherein the interval between two adjacent first messages is less than or equal to that the first device continuously sends a plurality of the first messages to the first interface of the multiple second devices in the first time period, where The duration of the first period of time is greater than or equal to the duration of one of the sleep periods of the one of the second devices of each of the second devices.

It should be understood that the sending, by the first device, the plurality of the first message to the first interface of the multiple second devices in the first time period means that the first device is less than or equal to the first time in the first time period. The second device of the second device sends a plurality of the first messages to the first interface of the second device for a continuous open period of the first interface in a sleep period.

It should also be understood that if the first interface of the second device receives the first message while its sleep mechanism is already in the off state, the first interface of the second device continues to maintain the shutdown of the sleep mechanism.

For example, the length of the sleep mechanism of the second device 1 is 100 ms, wherein the length of the wake window is 30 ms, the wake window is continuous in the sleep mechanism, there is no interval, the length of the sleep window is 70 ms; the sleep mechanism of the second device 2 The length of the wakeup window is 20ms, wherein the wakeup window is continuous in the sleep mechanism, there is no interval, the length of the sleep window is 80ms; the length of the sleep mechanism of the second device 3 is 110ms, wherein the wakeup window is The length is 40 ms, the awake window is continuous in the sleep mechanism, there is no interval, and the length of the sleep window is 70 ms. When the first device sends the first message to the second device 1, the second device 2, and the second device 3 When,

The interval at which the first device sends the first message is less than or equal to 20 ms, and the time period during which the first device sends the first message is greater than or equal to 110 ms.

For another example, if the length of the wake-up window of the sleep mechanism of the second device 1 is 30 ms, the wake-up window is further divided into a first wake-up window and a second wake-up window, and the first wake-up window and the second wake-up window are respectively 20 ms. And 10 ms, as shown in FIG. 4, the first wake-up window and the second wake-up window are spaced apart by the sleep window. When the first device sends the first message to the second device 1, the second device 2, and the second device 3, the interval at which the first device sends the first message is less than or equal to 20 ms, and the first device sends the The time period of the first message is greater than or equal to 110 ms.

For another example, if the length of the wake-up window of the sleep mechanism of the second device 1 is 30 ms, but the wake-up window is further divided into a first wake-up window and a second wake-up window, the first wake-up window and the second wake-up window are respectively 15 ms. And 15ms. When the first device sends the first message to the second device 1, the second device 2, and the second device 3, the interval at which the first device sends the first message is less than or equal to 15 ms, and the first device sends the The time period of the first message is greater than or equal to 110 ms.

Optionally, the first device and the plurality of second devices are in a synchronous working mode, where the first interface of the plurality of second devices is synchronized with a clock of the first device, where the first device is Transmitting or multicasting the first message to the first interface of each of the plurality of second devices, including: broadcasting or multicasting during an on period of the first interface of the plurality of second devices The manner of transmitting the first message to the plurality of second devices.

Specifically, the synchronous working mode is that the first interface of the multiple second devices is synchronized with the clock of the first device, and the first device needs to send a message to maintain synchronization with the terminal WUR (such as a WUR beacon), that is, The first device not only knows that the WUR of the second device is periodically awake or closed, but also the first device can accurately know at which time the WUR of the second device wakes up or shuts down. The first device may send the first message to the second device within the wakeup window of the WUR of the corresponding second device.

For example, in FIG. 5, the first device sends the first message to the second device 1, the second device 2, and the second device 3 in a wake-up window thereof to broadcast or multicast.

Optionally, the first device sends the first message to the multiple second devices in a broadcast or multicast manner during the opening period of the first interface of the multiple second devices, including: when the multiple When the opening periods of the first interfaces of the second devices in the two devices overlap, the overlapping periods of the opening periods of the first interfaces of the second devices in the plurality of second devices are broadcasted or multicasted to each other. The part of the second device sends the first message.

Specifically, if the opening time periods of the waking windows of the plurality of second devices coincide, the first device may broadcast or multicast the plurality of second devices during an overlapping period of the waking windows of the plurality of second devices. The first message is sent to the second device, as shown in FIG. 6, the second device 1, the second device 2, and the third device 3 are aligned (or have overlapping areas), The first device may only send one first message.

Optionally, the first message may at least carry a broadcast identifier or a multicast identifier of a basic service set (BSS) where the first device is located, such as a broadcast WUR identifier of the BSS where the first device is located, and all The first interface of the second device associated with the device may identify the WUR identifier; or the multicast identifier, such as the multicast WUR identifier, may be identified by the first interface of the second device associated with the first device; the first message is at least The identifier of the first interface of the first device that can be carried in full or truncated, such as the WUR identifier of the first device, or the BSS color (for roughly distinguishing the wireless Fidelity (Wi-Fi) network, which can be used as an access The truncated mark of the point).

Alternatively, the truncated broadcast identifier or the truncated transmission identifier may be used, and the first interface for the one or more second devices identifies the first message. Keeping the first message as short as possible can reduce the excessive radio channel resources occupied by continuously transmitting a plurality of first messages.

Optionally, the first message is a WUR message. As shown in FIG. 7, the frame structure of the WUR message can be divided into a preamble and a payload, wherein the pilot bandwidth is greater than the payload bandwidth. The preamble is an 802.11 preamble, that is, a pilot sequence that can be understood by a conventional 802.11 device, and is transmitted over a bandwidth of 20 MHz or 20 MHz integer multiples (such as 40 MHz, 80 MHz, or 160 MHz), so that the conventional 802.11 device can determine the current message according to the actual (actually For WUR messages) is a Wi-Fi message for compatibility with legacy 802.11 devices. The traditional 802.11 device that hears the 802.11 pilot can obtain the time when the WUR message occupies the channel according to the information in the 802.11 preamble (such as the Length domain information), and does not attempt to access the channel during this time to avoid interfering with the WUR message in the transmission. The length field information is 12 bits, indicating the number of bytes that need to be transmitted in the message data part. In FIG. 7, the pilot part only shows the length field, and it should be understood that the length field belongs to a subset of the pilot, and the pilot also includes other Subdomains.

In other words, based on the information indicated by the Length field and the transmission rate of the 802.11 pilot, the remaining time required to transmit the message can be calculated. The payload is a Payload portion of the WUR message, and uses a modulation method with low demodulation complexity, such as OOK modulation, ie Binary Amplitude Shift Keying (2BASK), and uses narrowband transmission, such as 1 MHz channel, 2 MHz channel, 5 MHz. Channels, etc. (traditional 802.11 minimum channel bandwidth is 20MHz), which allows the receiver to further reduce power consumption. The Payload of the WUR message includes the Wake-Up Preamble and the Medium Access Control (MAC) part, wherein the former functions similarly to the traditional 802.11 pilot and can be used for WUR to identify the WUR signal; the latter and the MAC portion of the Wi-Fi message. Similarly, it may further include a MAC Header, a Frame Body, and a Frame Check Sequence (FCS). Here, the MAC Header carries at least the identifier of the second device; the Frame Body can carry some indications, control information, and the like; the FCS belongs to the verification information, and is used to determine whether the message receives an error.

Optionally, the present application provides a frame structure of a first payload portion of a possible first message, as shown in FIG. The first payload of the first message may include at least a Type Domain, a Receive Address (RA), and a Frame Check Sequence (FCS); optionally, a Transmit Address, TA). The Type field is a frame control field of the WUR message, and is used to indicate the frame type and function. The frame type of the first message may be indicated by using a 1-bit indicator bit in the Type field. When the bit is 1, it indicates that the first message is a DC off message, and is used to disable the sleep mechanism of the first interface of the second device. The RA field is a receiving address of the first message to help the first interface of the second device identify that the first message is sent to itself. The FCS is frame check, and the first interface for the second device determines that the first message is correctly received. The TA field is a sending address of the first message, and the sending address may use a first interface identifier of the first device that is completely or truncated, such as a BSS color (truncated identifier), to roughly distinguish different Wi-Fi networks. The advantage of using BSS color is that the occupied bit indication bit is less than the full transmit address. The disadvantage is that it is possible to use a duplicate BSS color with a neighboring Wi-Fi network.

S220. The second device receives, by using the first interface, a first message sent by the first device, where the first message is used to instruct the second device to disable the dormancy mechanism of the first interface.

S230. The second device turns off the sleep mechanism of the first interface according to the first message.

After receiving the first message, the WUR of the second device turns off the sleep mechanism of the first interface, that is, the first interface is always on, and is used to receive the second message.

S240. The first device sends a first interface to at least one of the plurality of second devices (at least one of which may be one or more, when at least two devices need to be awake, at least two) Send a second message, the The second message is used to instruct the at least one second device to enable the second interface of the at least one second device, so that the first device communicates with the at least one second device by using the second interface of the at least one second device.

Optionally, the second message is a wake-up frame (WUP Up Packet, WUP) of the low-power wake-up receiver.

Optionally, the second interface is configured to receive a message of the wireless transceiver

Since the first interface of the second device associated with the first device has been kept open, it can be ensured that the first interface of the one or more second devices is in the awake state when the first device sends the second message.

If the second interface of the at least one second device is not successfully awake, because the first interface sleep mechanism of the second device is closed, the first device resends the WUP to the first interface of the second device with sufficient time. To wake up the second interface of the second device, without first discovering that the second interface of the second device is not successfully awake when the first device of the second device is fast or has entered the sleep window, then the second device needs to wait until the second device The wake-up frame can be resent after the first interface wakes up next time, reducing the wake-up delay (at least the wake-up delay of about one sleep cycle can be reduced).

Optionally, the first device sends a second message to the first interface of the one or more second devices for waking up the wireless transceiver of the one or more second devices. If the second message is used to wake up the wireless transceivers of the plurality of second devices, the second message may include a multicast address of the plurality of second devices.

Optionally, the first device sends multiple (greater than one) second messages to the first interface of the one or more second devices for waking up the wireless transceiver of the one or more second devices. The receiving party of the multiple second messages may be completely different, for example, the first device sends multiple WUPs to the first interfaces of the multiple second devices, such as the terminal WUR1, the terminal WUR2, ..., the terminal WURI, etc., to It is expected that the wireless transceivers of the plurality of second devices are respectively awake in a short time; or the receiving parties of the plurality of second messages may be the same, for example, the first device is continuous to the first interface of the specific second device Sending two or three WUPs to increase the probability that the first interface of the second device receives the wake-up frame; or the receiving portions of the plurality of second messages are the same.

S250. The second device receives the second message sent by the first device by using the first interface, where the second message is used to instruct the second device to enable the second interface.

After receiving the second message sent by the first device by the first interface, the second device wakes up the wireless transceiver of the second device.

S260. The second device starts the second interface according to the second message, where the second interface is used for wireless communication between the first device and the second device.

The second interface is configured to perform Wi-Fi wireless communication between the first device and the plurality of second devices.

Optionally, the first receiver of the second device sends a trigger signal to the second transceiver of the second device for waking up the second transceiver that the second device is in hibernation. After waking up the second transceiver of the second device, the first receiver of the second device can go to sleep. It should be noted that the trigger signal belongs to the signal inside the second device, and is neither a WUR signal nor a Wi-Fi signal.

Optionally, the first device communicates with a second interface of the second device. The communication performed here is a planned data transmission after the first device wakes up the second interface of the second device. After the data transmission is completed, the second interface of the second device enters sleep, and the first interface of the second device will remain awake while maintaining the closed state of the first interface sleep mechanism of the second device.

Optionally, after the second device starts the second interface, the second interface sends the confirmation information of the second message to the first device.

S270, the first device sends a third message to the first interface of each of the plurality of second devices, where the third message is used to indicate that the second device that receives the third message starts the second Sleeping of the first interface of the device Mechanism, the third message is a broadcast message or a multicast message.

Optionally, after the first device receives the acknowledgement message of the second message that is sent by the second device by using the second interface, the first device broadcasts or multicasts to the multiple The first interface of each of the second devices transmits the third message.

Specifically, when the second interface of the second device is successfully awake, the second device sends an acknowledgement message to the first device by using the second interface, and after receiving the acknowledgement information, the first device learns the first The second interface of the second device has been successfully woken up. The first device may perform Wi-Fi communication with the second device through the second interface, where the first device sends the first interface of each of the plurality of second devices in a broadcast or multicast manner. Third message.

It should be understood that the third message is used to indicate that the second device that receives the third message starts the sleep mechanism of the first interface of the second device, and the frame structure of the third message and the first message may be similar. The frame type of the third message may be indicated by a 1-bit indicator bit in the Type field. When the bit is 0, the first message is a DC on message, and the dormancy mechanism of the first interface of the second device is enabled.

Optionally, the first message and the third message may be distinguished by using a bit indicator bit. If the indicator bit indicates “1”, it is a first message, and is used to disable the first interface of the second device. The sleep mechanism is indicated as a third message when the "0" is indicated, and is used to enable the sleep mechanism of the first interface of the second device.

Optionally, after the Wi-Fi communication is completed by the second interface of the second device, the first device may broadcast or multicast to each of the plurality of second devices in a broadcast or multicast manner. The first interface of the second device sends a third message.

S280. The second device receives the third message sent by the first device by using the first interface, where the third message is used to indicate that the second device starts the sleep mechanism of the first interface.

S290. The second device starts the sleep mechanism of the first interface according to the third message.

The second device receives the third message, and starts the sleep mechanism of the first interface, which can reduce energy consumption.

Optionally, after the first device sends the first message to the first interface of each of the plurality of second devices, and after the first device sends the first message to each of the plurality of second devices Before the first interface of the second device sends the third message, the first device sends a fourth message to the first interface of each of the plurality of second devices in a broadcast manner, where the fourth message is used by the first interface. The second device that receives the fourth message is configured to disable the sleep mechanism of the first interface of the second device, where the fourth message is a beacon message.

Specifically, the first device sends the first message to the first interface of each of the plurality of second devices, and the first device to each of the plurality of second devices Before the first interface of the second device sends the third message, the first device sends a fourth message to all associated second devices, where the fourth message carries a Duty Cycle Off (DC Off) indication, and is used to notify all The sleep mechanism of the first interface of the second device associated with the first device remains off, that is, the first interface remains open. If the sleep mechanism of the first interface of the second device that receives the fourth message is already in the off state, then the shutdown is continued.

If the first interface of the second device does not receive the foregoing first message, and the sleep mechanism of the first interface is still in the open state, the second message sent by the first device may not be received; The fourth message is sent before the second message (such as the second message sent to the first interface of the second device), and the first interface of the second device successfully receives the fourth message, even if the second device An interface does not close its sleep mechanism through the first message, and can also close its sleep mechanism through the fourth message, keep the first interface continuously turned on, and then can receive the second message.

Optionally, the fourth message is a WUR broadcast message.

Optionally, the fourth message is a periodically sent message.

Specifically, if the fourth message is a periodically sent message, the timing of the fourth message may be related to the timing of the first message, or the second message, or the third message. The fourth message carries a Duty Cycle On or a Duty Cycle Off indication. When the first device sends the fourth message, it is expected that the sleep mechanism of the first interface of the second device is turned off, and may be indicated as a Duty Cycle Off; when the first device sends In the fourth message, if the sleep mechanism of the first interface of the second device is turned on, it may be indicated as Duty Cycle On. Here, Duty Cycle Off and Duty Cycle On can use a total of 1 bit indication bit indication.

Optionally, the fourth message is a beacon frame of the low power wakeup receiver.

For example, the fourth message is a WUR beacon. The fourth message can be used, for example, that the fourth message is a WUR beacon. The fourth message can be used to maintain a heartbeat connection between the first device and the second device, such as the second device receiving the message knowing that it is still within the coverage of the first device. The fourth message is further configured to carry synchronization information, where the first interface of the first device and the second device maintain synchronization.

It should be understood that the beacon frame of the low-power wake-up receiver is only used as an example and does not constitute any limitation. The message for maintaining the heartbeat connection of the first device and the second device may also be called an indication message or other. .

Optionally, after the first device sends the third message to the first interface of the multiple second devices, the first device sends a fifth message to the first interface of the multiple second devices in a broadcast manner. The fifth message is used to indicate that the second device that receives the fifth message starts the sleep mechanism of the first interface of the second device, where the fifth message is a beacon message.

Specifically, after the first device sends the third message to the first interface of the multiple second devices, the first device sends a fifth message to the first interface of the multiple second devices in a broadcast manner. The fifth message carries a Duty Cycle On (DC On) indication, and is used to notify that the sleep mechanism of the first interface of all the second devices associated with the first device remains on.

If the first interface of the second device does not receive the foregoing third message, and the sleep mechanism of the first interface is still in the closed state, the first interface of the second device can start the sleep mechanism by using the fifth message to save energy. .

By carrying the Duty Cycle On or Duty Cycle Off indication in the message such as the WUR beacon, the terminal WUR that does not hear the DC On message or the DC Off message can enable or disable the sleep mechanism of the WUR beacon, thereby avoiding waste of WUR energy consumption or making the terminal WUR can continuously receive WUR messages.

Therefore, in the present application, the first device turns off the sleep mechanism of the second device associated with the first device by sending a broadcast or multicast message (such as a DC Off message), so that the first device has sufficient time to wake up one or more a wireless transceiver of the second device; the first device then sends a broadcast or multicast message (such as a DC On message) to enable the sleep mechanism of the second device associated with the first device to save energy by indicating the above WUR message The method, whether in the synchronous mode or the asynchronous mode, can successfully send multiple WUR messages in a short time in a short time while successfully waking up the wireless transceiver of the second device, and ensure that the wake-up terminal wirelessly transmits and receives If the required delay is small, the excessive occupation of the wireless channel resources is minimized.

FIG. 9 is a schematic block diagram of a first device 300 in accordance with the present application. As shown in FIG. 9, the first device 300 includes:

The wireless transceiver 310 is configured to send, by the first device, a first message to the first interface of each of the plurality of second devices in a broadcast or multicast manner, where the first message is used to indicate that the first message is received. The second device of the second device closes the sleep mechanism of the first interface of the second device, and the sleep mechanism of the first interface of the second device includes the second device The first interface is periodically turned on and off;

The wireless transceiver 310 is further configured to: after the first device sends the first message, the first device sends a second message to the first interface of the at least one of the plurality of second devices, where the The second message is used to instruct the at least one second device to enable the second interface of the at least one second device, so that the first device communicates with the at least one second device by using the second interface of the at least one second device;

The wireless transceiver 310 is further configured to: after the first device sends the second message, the first device broadcasts or multicasts to the first interface of each of the plurality of second devices Sending a third message, where the third message is used to indicate that the second device that receives the third message starts the sleep mechanism of the first interface of the second device;

The processor 320 is configured to generate at least one of the first message, the second message, and the third message. The processor can be one or more.

The processor 320 can implement generation and parsing of Wi-Fi messages and WUR messages. Specifically, the Wi-Fi message includes communication performed by the first device and the second device; the WUR message includes the first message, the second message, the third message, and the fourth message.

The memory 330 is configured to store a program, the program including code, and transmitting the stored program code to the processor 320.

The first interface 350 sends the WUR message through the first interface 350.

The second interface 360, the first device sends a Wi-Fi message through the second interface 360.

The first device 300 also includes an antenna 370.

Optionally, the first device may further include a low power wakeup receiver 340, as shown in FIG. When the first device includes the low power wakeup receiver 340, the low power wakeup receiver 340 is used by the first device to broadcast or multicast to each of the plurality of second devices An interface sends a first message, where the first message is used to indicate that the second device that receives the first message closes the sleep mechanism of the first interface of the second device, and the dormancy mechanism of the first interface of the second device includes the The first interface of the second device is periodically turned on and off;

The low-power wake-up receiver 340 is further configured to: after the first device sends the first message, the first device sends a second message to the first interface of the at least one of the plurality of second devices The second message is used to instruct the at least one second device to enable the second interface of the at least one second device, so that the first device passes the second interface of the at least one second device and the at least one second device Communication

The low-power wake-up receiver 340 is further configured to: after the first device sends the second message, the first device broadcasts or multicasts to each of the plurality of second devices The first interface sends a third message, where the third message is used to indicate that the second device that receives the third message starts the sleep mechanism of the first interface of the second device.

It should be understood that when the first device can send the first message, the second message, and the third message by using a wireless transceiver, the first device may also send the first message by using the low power wakeup receiver, The second message and the third message. When the first device sends the first message, the second message, and the third message by using a wireless transceiver, the first device may not include the low power wakeup receiver; when the first device does not consider energy saving The first device may not include the low power wakeup receiver.

Alternatively, the processor 320 and the memory 330 can be shared by the low power wakeup receiver 340 and the wireless transceiver 310. The first interface 350 and the second interface 360 can share the same antenna sub-module 370, mainly for the purpose of reducing the hardware cost of the device. The first interface 350 and the second interface 360 may also correspond to different antennas, particularly when the two are operating in different frequency bands, such as the 2.4 GHz band and the 5 GHz band.

Optionally, the wireless transceiver 310, the low power wakeup receiver 340, the processor 320, and the memory 330 are used to perform various operations of the method 200 of a wireless communication of the present application. Let me repeat.

FIG. 11 is a schematic block diagram of a second device 400 in accordance with the present application. As shown in FIG. 11, the second device 400 includes:

The low-power wake-up receiver 410 is configured to receive, by the second device, the first message sent by the first device by using the first interface 450, where the first message is used to indicate that the second device turns off the sleep of the first interface 450 a mechanism, the sleep mechanism is periodically turned on and off by the first interface 450 of the second device;

The low power wakeup receiver 410 is further configured to: close the sleep mechanism of the first interface 450 according to the first message;

The low-power wake-up receiver 410 is further configured to: receive, by using the first interface 450, a second message that is sent by the first device, where the second message is used to instruct the second device to enable the second interface 460;

The wireless transceiver 420 is configured to enable the second interface 460 according to the second message, where the second interface 460 is used for performing wireless communication between the first device and the second device;

The low-power wake-up receiver 410 is further configured to: receive, by using the first interface 450, a third message that is sent by the first device, where the third message is used to instruct the second device to enable the first interface 450 Dormant mechanism

The low power wakeup receiver 410 is further configured to: start the sleep mechanism of the first interface 450 according to the third message.

The processor 430 can implement generation and parsing of Wi-Fi messages and WUR messages. Specifically, the Wi-Fi message includes communication performed by the first device and the second device; the WUR message includes the first message, the second message, the third message, and the fourth message.

The memory 440 is configured to store a program, and the program includes a code.

The low power wakeup receiver 410 is configured to receive a WUR signal (eg, receive a payload portion of the WUR message) through the first interface 450, and convert the WUR signal into a sequence that the processor 430 can parse, such as noise reduction, amplification, Demodulation, etc.

The wireless transceiver 420 is configured to receive a Wi-Fi signal through the second interface 460, and convert the Wi-Fi signal into a sequence that the processor 430 can parse, such as amplifying the signal, noise reduction, demodulation, etc.; The second interface 440 transmits a Wi-Fi signal and converts the Wi-Fi message generated by the processor 430 into a Wi-Fi message that can be transmitted to the medium through the second interface 460, such as an amplified signal, modulation, and the like.

The second device also includes an antenna 470.

Alternatively, the processor 430 and the memory 440 can be shared by the low power wakeup receiver 410 and the wireless transceiver 420. The first interface 450 and the second interface 460 can share the same antenna sub-module 470, mainly for the purpose of reducing the hardware cost of the device. The first interface 450 and the second interface 460 may also correspond to different antennas, particularly when the two are operating in different frequency bands, such as the 2.4 GHz band and the 5 GHz band.

Optionally, the low power wakeup receiver 410, the wireless transceiver 420, the processor 430, the memory 440, the first interface 450, and the second interface 460 are configured to perform a wireless communication of the present application. The operations of the method 200 are not described herein for the sake of brevity.

It should be understood that, in the present application, the processor may be a central processing unit (CPU), and the processor may also be other general purpose processors, digital signal processors (DSPs), and application specific integrated circuits (ASICs). ), off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, Establish hardware components, etc. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

The memory can include read only memory and random access memory and provides instructions and data to the processor 430. A portion of the memory may also include a non-volatile random access memory. For example, the memory 440 can also store information of the device type.

The transceiver can be used to implement signal transmission and reception functions, such as frequency modulation and demodulation functions or up-conversion and down-conversion functions.

In an implementation process, at least one step of the above method may be performed by an integrated logic circuit of hardware in the processor, or the integrated logic circuit may perform the at least one step driven by an instruction in a software form. Thus, the first device or the second device can be a chip or chipset. The steps of the method disclosed in connection with the present application may be directly embodied by hardware processor execution or by a combination of hardware and software modules in a processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with the hardware thereof. To avoid repetition, it will not be described in detail here.

It should be understood that, in the various embodiments of the present application, the size of the sequence numbers of the foregoing processes does not mean the order of execution sequence, and the order of execution of each process should be determined by its function and internal logic, and should not be applied to the embodiment of the present application. The implementation process constitutes any limitation.

Those of ordinary skill in the art will appreciate that the modules and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present application.

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the module described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the modules is only a logical function division. In actual implementation, there may be another division manner, for example, multiple modules or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or module, and may be electrical, mechanical or otherwise.

The modules described as separate components may or may not be physically separated. The components displayed as modules may or may not be physical modules, that is, may be located in one place, or may be distributed to multiple network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional module in each embodiment of the present application may be integrated into one processing module, or each module may exist physically separately, or two or more modules may be integrated into one module.

The functions, if implemented in the form of software functional modules and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application, which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including Several instructions to make a computer device (can It is a personal computer, server, or network device, etc.) that performs all or part of the steps of the methods described in various embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with the present application are generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center via wired (eg, coaxial cable, fiber optic, digital subscriber line) or wireless (eg, infrared, wireless, microwave, etc.). The computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media. The usable medium may be a magnetic medium, such as a floppy disk, a hard disk, a magnetic tape, an optical medium, or a semiconductor medium such as a Solid State Disk (SSD).

The relevant parts of the method embodiments of the present application may be referred to each other; the apparatus provided in each device embodiment is used to execute 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 structure diagrams given in the various device embodiments of the present application show only a simplified design of the corresponding device. In practical applications, the device may include any number of wireless transceivers, low power wake-up receivers, processors, memories, antennas, etc., to implement the functions or operations performed by the device in the embodiments of the present application. All devices that can implement the present application are within the scope of the present application.

The foregoing is only a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present application. It is covered by the scope of protection of this application. Therefore, the scope of protection of the present application should be determined by the scope of the claims.

Claims

A method for performing wireless communication in a wireless network, the wireless network includes a first device and a plurality of second devices associated with the first device, and the method includes:

The first device sends a first message to the first interface of each of the plurality of second devices, where the first message is used to indicate that the second device that receives the first message closes the second device The dormancy mechanism of the first interface, the dormancy mechanism of the first interface of the second device includes that the first interface of the second device is periodically turned on and off, and the first message is a broadcast message or a multicast message.

After the first device sends the first message, the first device sends a second message to a first interface of at least one of the plurality of second devices, where the second message is used for Instructing the at least one second device to enable the second interface of the at least one second device, such that the first device communicates with the at least one second device through the second interface of the at least one second device ;

After the first device sends the second message, the first device sends a third message to a first interface of each of the plurality of second devices, where the third message is used And indicating, by the second device that receives the third message, a sleep mechanism of the first interface of the second device, where the third message is a broadcast message or a multicast message.
The method according to claim 1, wherein the first device and the plurality of second devices are in an asynchronous working mode, and the asynchronous working mode is a first interface and a plurality of the second devices. The first device sends a first message to the first interface of each of the plurality of second devices, including:

The first device continuously sends a plurality of the first messages to the first interface of the multiple second devices in a first time period,

The interval at which the first device sends two adjacent first messages is less than or equal to a continuous opening of the first interface in any one of the second devices in the second device. The duration of the first period of time is greater than or equal to the duration of one of the sleep periods of the one of the second devices of each of the second devices.
The method according to claim 1, wherein the first device and the plurality of second devices are in a synchronous working mode, and the synchronous working mode is a first interface and a plurality of the second devices The first device sends a first message to the first interface of each of the plurality of second devices, including:

Transmitting, by the first interface of the plurality of second devices, the first message to a first interface of the plurality of second devices.
The method according to claim 3, wherein the first device sends the first message to the plurality of second devices during an open period of the first interface of the plurality of second devices, including :

When an open period of the first interface of the second device of the plurality of second devices overlaps, an overlap period of the open period of the first interface of the second device of the plurality of second devices The first interface of the part of the second device sends the first message.
The method according to any one of claims 1 to 4, wherein after the first device sends the second message, the first device is in the plurality of second devices The first interface of each second device sends a third message, including:

Receiving, by the first device, each second device of the at least one second device by using the second interface After the acknowledgement message of the second message is sent, the third message is sent to the first interface of each of the plurality of second devices.
The method according to any one of claims 1 to 5, wherein the method further comprises:

After the first device sends the first message to a first interface of each of the plurality of second devices and to the first device to each of the plurality of second devices Before the first interface of the second device sends the third message, the first interface of each of the plurality of second devices of the first device sends a fourth message, where the fourth message is a broadcast message or a multicast message, the fourth message is used to indicate that the second device that receives the fourth message closes the sleep mechanism of the first interface of the second device, where the fourth message is Beacon message.
The method according to any one of claims 1 to 6, wherein the method further comprises:

After the first device sends the third message to the first interface of the multiple second devices, the first device sends a fifth message to the first interface of the multiple second devices, where The fifth message is used to indicate that the second device that receives the fifth message starts the sleep mechanism of the first interface of the second device, where the fifth message is a beacon message.
The method according to any one of claims 1 to 7, wherein the fourth message and/or the fifth message are periodically transmitted messages.
A method according to any one of claims 1 to 8, wherein

The first device is a wireless communication device having the capability of transmitting a message of a low power wakeup receiver;

The second device is a wireless communication device having the capability of receiving a low power consumption wake-up receiver message;

The second message is a wake-up frame sent to the low-power wake-up receiver.
The method according to any one of claims 6 to 9, wherein the fourth message and/or the fifth message is a beacon frame of a low power wakeup receiver.
The method according to any one of claims 1 to 10, wherein the first device has at least a second interface, and the first device sends the first one by using a second interface of the first device. a message, a second message, and a third message, and communicate with the second interface of the at least one second device through a second interface of the first device.
The method according to any one of claims 1 to 10, wherein the first device has a first interface and a second interface, and the first device is specifically sent by the first interface of the first device Decoding the first message, the second message, and the third message, and communicating with the second interface of the at least one second device by using the second interface of the first device.
The method according to any one of claims 1 to 12, wherein the first interface is a communication interface provided by a low power wakeup receiver, and the second interface is a communication interface provided by a wireless transceiver.
A method for performing wireless communication in a wireless network, wherein the wireless network includes a first device and a plurality of second devices associated with the first device, including:

Receiving, by the first device, the first message sent by the first device by using the first interface, where the first message is used to indicate that the second device disables a sleep mechanism of the first interface, where the dormancy mechanism is The first interface of the second device is periodically turned on and off;

Deactivating a sleep mechanism of the first interface according to the first message;

Receiving, by the first interface, the second message sent by the first device, where the second message is used to instruct the second device to enable the second interface;

Translating, according to the second message, the second interface, where the second interface is configured to perform wireless communication with the first device after being turned on;

Receiving, by the first interface, a third message sent by the first device, where the third message is used to indicate that the second device starts a sleep mechanism of the first interface;

And according to the third message, the sleep mechanism of the first interface is started.
The method of claim 14, wherein the method further comprises:

After receiving the first message and before receiving the third message, receiving, by the first interface, a fourth message sent by the first device, where the fourth message is used to indicate the second message The device turns off the sleep mechanism of the first interface, where the fourth message is a beacon message.
The method according to claim 14 or 15, wherein the method further comprises:

After receiving the third message, receiving, by the first interface, a fifth message sent by the first device, where the fifth message is used to instruct the second device to enable the dormancy mechanism of the first interface Wherein the fifth message is a beacon message.
The method according to claim 15 or 16, wherein the fourth message and/or the fifth message are periodically transmitted messages.
The method according to any one of claims 14 to 17, wherein the method further comprises:

After the second device starts the second interface, the second interface sends the confirmation information of the second message to the first device.
A method according to any one of claims 14 to 18, wherein

The first device is a wireless communication device that wakes up the message capability of the receiver with low power consumption;

The second device is a wireless communication device having the capability of receiving a low power consumption wake-up receiver message;

The second message is a wake-up frame of the low power wake-up receiver.
The method according to any one of claims 15 to 19, wherein the fourth message and/or the fifth message is a beacon frame of a low power wakeup receiver.
The method according to any one of claims 14 to 20, wherein the first interface is a communication interface provided by a low power wakeup receiver, and the second interface is a communication interface provided by a wireless transceiver.
A first device for performing wireless communication in a wireless network, the wireless network includes a first device and a plurality of second devices associated with the first device, and the method includes:

a processor, configured to generate a first message, where the first message is used to indicate that a second device that receives the first message closes a sleep mechanism of a first interface of the second device, where The first interface of the second device is periodically turned on and off, and the first message is a broadcast message or a multicast message.

a wireless transceiver, configured to send the first message to a first interface of each of the plurality of second devices;

The processor is further configured to generate a second message;

The wireless transceiver is further configured to: after sending the first message, send the second message to a first interface of at least one of the plurality of second devices, where the second message is used by Instructing the at least one second device to enable the second interface of the at least one second device, such that the first device passes the second interface of the at least one second device and the at least one second device Communication

The processor is further configured to generate a third message, where the third message is used to indicate that the second device that receives the third message starts a sleep mechanism of the first interface of the second device, and the third The message is broadcast message or multicast interest;

The wireless transceiver is further configured to send the third message to a first interface of each of the plurality of second devices after sending the second message.
The first device according to claim 22, wherein the first device and the plurality of second devices are in an asynchronous working mode, and the asynchronous working mode is a first interface of the plurality of second devices And the first message is sent to the first interface of each of the plurality of second devices, specifically:

The wireless transceiver is configured to continuously send a plurality of the first messages to a first interface of the plurality of second devices during a first time period,

The interval at which the wireless transceiver sends two adjacent first messages is less than or equal to a continuous opening of the first interface in any one of the second devices in each of the second devices. The duration of the first period of time is greater than or equal to the duration of one of the sleep periods of the one of the second devices of each of the second devices.
The first device according to claim 22, wherein the first device and the plurality of second devices are in a synchronous working mode, and the synchronous working mode is a first interface of the plurality of second devices And being synchronized with the clock of the first device, where the wireless transceiver is configured to send the first message to the first interface of each of the plurality of second devices, specifically:

The wireless transceiver is configured to send the first message to a first interface of the multiple second devices during an open period of the first interface of the multiple second devices.
The first device according to claim 24, wherein the wireless transceiver is configured to send to the first interface of the plurality of second devices during an on period of the first interface of the plurality of second devices The first message is specifically:

When the opening period of the first interface of the second device of the plurality of second devices overlaps, the wireless transceiver is configured to open the first interface of the second device of the plurality of second devices And transmitting, by the first interface of the part of the second device, the first message.
The first device according to any one of claims 22 to 25, wherein the wireless transceiver is configured to send a second to each of the plurality of second devices after transmitting the second message The first interface of the device sends a third message, which is specifically:

The wireless transceiver is configured to, after transmitting the second message, and at the wireless transceiver, receive the second second of the at least one second device that is sent by the second interface After the acknowledgement message of the message, the third message is sent to the first interface of each of the plurality of second devices.
The first device according to any one of claims 22 to 26, wherein the processor is further configured to generate a fourth message, the wireless transceiver is further configured to:

After transmitting the first message to a first interface of each of the plurality of second devices and transmitting to the first interface of each of the plurality of second devices Before the third message, the fourth message is sent to the first interface of each of the plurality of second devices in a broadcast manner, where the fourth message is used to indicate that the fourth message is received. The second device turns off the sleep mechanism of the first interface of the second device, where the fourth message is a beacon message.
The first device according to any one of claims 22 to 27, wherein the processor is further configured to generate a fifth message, the wireless transceiver is further configured to:

After the third message is sent to the first interface of the multiple second devices, the fifth message is sent to the first interface of the multiple second devices in a broadcast manner, where the fifth message is used to indicate The second device that receives the fifth message starts a sleep mechanism of the first interface of the second device, where the fifth message is a beacon message.
The first device according to claim 27 or 28, wherein the fourth message and/or the fifth message are further used to indicate that each of the second devices is in a communication range of the first device within.
The first device according to any one of claims 25 to 29, wherein the fourth message and/or the fifth message is a periodically transmitted message.
A first device according to any one of claims 22 to 30, wherein

The first device is a wireless communication device having the capability of transmitting a message of a low power wakeup receiver;

The second message is a wake-up frame sent to the low-power wake-up receiver.
The first device according to any one of claims 27 to 31, wherein the fourth message and/or the fifth message is a beacon frame of a low power wakeup receiver.
The first device according to any one of claims 22 to 32, wherein the first interface is a low power wakeup receiver, and the second interface is a wireless transceiver.
A second device for performing wireless communication in a wireless network, wherein the wireless network includes a first device and a plurality of second devices associated with the first device, including:

a first interface, configured to receive a first message sent by the first device, where the first message is used to indicate that the second device disables a sleep mechanism of the first interface, and the dormant mechanism is the second The first interface of the device is periodically turned on and off;

a processor, configured to shut down a sleep mechanism of the first interface according to the first message;

The first interface is further configured to: after receiving the first message, receive a second message sent by the first device, where the second message is used to instruct the second device to enable the second interface;

The processor is further configured to: open the second interface according to the second message, where the second interface is configured to perform wireless communication with the first device after being turned on;

The first interface is further configured to: after receiving the second message, receive a third message sent by the first device, where the third message is used to instruct the second device to enable the first interface Dormant mechanism

The processor is further configured to: start a sleep mechanism of the first interface according to the third message.
The second device according to claim 34, wherein the first interface is further configured to:

After receiving the first message and before receiving the third message, receiving a fourth message sent by the first device, where the fourth message is used to instruct the second device to close the first A sleep mechanism of the interface, wherein the fourth message is a beacon message.
The second device according to claim 34 or 35, wherein the first interface is further configured to:

After receiving the third message, receiving, by using the first interface, the fifth message sent by the first device, where the fifth message is used to instruct the second device to enable the dormancy mechanism of the first interface, where The fifth message is a beacon message.
The second device according to claim 35 or 36, wherein the fourth message and/or the fifth message are further used to indicate that the second device is within the communication range of the first device .
The second device according to any one of claims 35 to 37, wherein the fourth message and/or the fifth message is a periodically transmitted message.
A second device according to any one of claims 34 to 38, wherein the second interface Also used for:

After being turned on, the confirmation information of the second message is sent to the first device.
A second device according to any one of claims 34 to 39, wherein

The second device is a wireless communication device having the capability of receiving a low power consumption wake-up receiver message;

The second message is a wake-up frame of the low power wake-up receiver.
The second device according to any one of claims 35 to 40, wherein the fourth message and/or the fifth message is a beacon frame of a low power wakeup receiver.
The second device according to any one of claims 34 to 41, wherein the first interface is a communication interface provided by a low power wakeup receiver, and the second interface is a communication provided by a wireless transceiver interface.