WO2018113192A1 - Procédé de réveil de dispositif sans fil, dispositif d'envoi, et dispositif de réception - Google Patents

Procédé de réveil de dispositif sans fil, dispositif d'envoi, et dispositif de réception Download PDF

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Publication number
WO2018113192A1
WO2018113192A1 PCT/CN2017/086680 CN2017086680W WO2018113192A1 WO 2018113192 A1 WO2018113192 A1 WO 2018113192A1 CN 2017086680 W CN2017086680 W CN 2017086680W WO 2018113192 A1 WO2018113192 A1 WO 2018113192A1
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WIPO (PCT)
Prior art keywords
message
receiving device
wake
wireless interface
sending
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PCT/CN2017/086680
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English (en)
Chinese (zh)
Inventor
程勇
方平
杨云松
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华为技术有限公司
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Priority to CN201780065117.XA priority Critical patent/CN109845346B/zh
Publication of WO2018113192A1 publication Critical patent/WO2018113192A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a method, a transmitting device, and a receiving device for waking up a wireless device.
  • Wi-Fi Wireless Fidelity
  • IOT Internet of Things
  • Communication technology is applied to the Internet of Things, including wearable electronic devices and digital medical devices.
  • Wi-Fi modules consume too much power, and Wi-Fi modules cannot be directly applied to IOT devices and wearable electronic devices.
  • IOT devices and wearable electronic devices such as sports bracelets, smart watches, and digital medical sensors, are generally small in size, so the capacity and capacity of batteries that can be carried are limited, while IOT devices and wearables.
  • Electronic equipment requires a relatively high battery life. Therefore, in order to apply Wi-Fi communication technology to IOT devices and wearable electronic devices, it is very necessary to improve and reduce the power consumption of Wi-Fi communication technology.
  • a Wake-up Radio Or Receiver (WUR) module is introduced in the existing solution, that is, an auxiliary WUR module is added to the IOT device and the wearable electronic device, and the IOT device or the wearable electronic is used for convenience of description.
  • the device is described as an example of a wake-up device (also referred to as a receiving device in the present invention): the auxiliary WUR module of the wake-up device enables duty cycle (Duty-Cycling), that is, the auxiliary WUR module periodically "wakes-sleeps". As shown in FIG. 1A or FIG.
  • the auxiliary WUR module of the wake-up device enables periodic "wake-sleep" after the work cycle, and the auxiliary WUR module of the wake-up device wakes up periodically, waiting for receiving the wake-up device (in this paper)
  • the wake-up frame or other frame sent by the transmitting device is also called to wake up the wake-up device's wake-up frame or other frame to wake up the wake-up device's main communication module.
  • the auxiliary WUR module of the wake-up device is in an ultra-low power deep sleep state (power consumption close to zero) outside of the wake-up window.
  • the wake-up device can accurately know the wake-up window (Wake Window) of the auxiliary WUR module of the wake-up device, as shown in FIG. 1A, the wake-up device can be A wake-up frame (WUP) is sent to the wake-up window of the wake-up device to the wake-up device's auxiliary WUR module to instruct the wake-up device to wake up the wake-up device's main communication module (such as an 802.11 module).
  • WUP wake-up frame
  • the wake-up device and the wake-up device may not maintain time synchronization.
  • the wake-up device and the wake-up device do not maintain time synchronization (ie, in asynchronous mode)
  • the wake-up device cannot accurately know the wake-up window (Wake Window) of the WUR of the wake-up device, as shown in FIG. 1B, the wake-up device is once In the wake-up attempt, multiple wake-up frames need to be sent continuously. It is expected that at least one wake-up frame will fall in the wake-up window of the auxiliary WUR module of the wake-up device to wake up the main communication module of the wake-up device.
  • the time interval V at which the wake-up device sends two consecutive wake-up frames is less than or equal to the wake-up window length W of the auxiliary WUR module of the wake-up device.
  • the structure of each wake-up frame may be as shown in FIG. 6, and the length of each of the wake-up frames is long, so that the transmission time and/or occupied air time of each of the wake-up frames is long (for example, 1 millisecond).
  • the number of wake-up frames sent by the wake-up device is too large. Because each of the wake-up frames takes a long time for the air interface, the air interface time occupied by multiple wake-up frames during the wake-up operation is too long. This results in inefficient air ports and interference with other equipment.
  • the embodiment of the invention provides a method for waking up a wireless device, a sending device and a receiving device, which can reduce the occupation time of the message to the air interface during the wake-up operation, thereby improving the air interface efficiency and reducing interference to other devices.
  • the embodiments provided by the present invention can be applied in an asynchronous mode, that is, if the awake device and the awake device do not maintain time synchronization.
  • Both the wake-up device and the awakened device may be wireless devices.
  • a first aspect of the embodiments of the present invention provides a method for waking up a wireless device, which may include: waking up the device to acquire at least one first message, and the waking device sends the at least one first message to the auxiliary WUR interface of the at least one awake device, where The sending time of the at least one of the at least one first message is in a wake-up window of the first wireless interface of the device to be woken, the first message includes a wake-up preamble, and the first message is used to indicate that the wake-up device will send the first message. Sending a second message to the auxiliary WUR interface of the at least one awake device.
  • the waking device generates a second message, where the second message includes a wakeup preamble, and the second message further includes identification information or group information of the auxiliary WUR interface of the at least one awake device, and the second message is longer than the first message (eg, The second message has a longer transmission time than the first message and/or takes longer to occupy the air interface.
  • the wake-up device sends a second message to the auxiliary WUR interface of the at least one wake-up device, the second message being used to wake up the main communication interface of the at least one wake-up device.
  • the wake-up device first sends a first message (which may be referred to as a short wake-up frame, which is shorter than the length of the wake-up frame existing in the prior art, such as shown in FIG. 5) to the auxiliary WUR interface of the wake-up device, and then transmits.
  • the second message (which may be referred to as a long wake-up frame, the specific frame structure may be a frame structure of a wake-up frame existing in the prior art, as shown in FIG. 6) is provided to the auxiliary WUR interface of the device to be woken up, and is awakened by the second message. Wake up the device's main communication interface.
  • the embodiment of the present invention replaces a part of the second message by using the shorter first message.
  • the technical solution of the present invention can reduce the occupation time of the message to the air interface during the wake-up operation, thereby improving the air interface efficiency and reducing the other Interference caused by equipment.
  • the method further includes: the wake-up device determines the number of the first message to be sent.
  • the method may further include: determining, by the wake-up device, a period of the work cycle of the auxiliary WUR interface of the wake-up device (referred to as T) and a length of the wake-up window (denoted as W); or, waking up the device to receive The period T of the duty cycle of the auxiliary WUR interface sent by the auxiliary WUR interface of the wake-up device and the length W of the wake-up window. It can be seen that the wake-up device can obtain the cycle T of the working cycle of the auxiliary WUR interface of the wake-up device and the length W of the wake-up window in two ways, thereby enhancing the diversity and selectivity of the solution.
  • the method further includes: the wake-up device calculates a period T of the foregoing working cycle divided by The quotient of the length W of the awake window, that is, T/W, the wake-up device determines the number of the first message and the number of the second message according to the value of the T/W (for example, the number of the second message may be one) The total number of the first message and the second message is greater than or equal to the value of the T/W, so that the wake-up device can receive at least the wake-up in the length W of the awake window within one T time.
  • T/W the wake-up device calculates a period T of the foregoing working cycle divided by The quotient of the length W of the awake window, that is, T/W
  • the wake-up device determines the number of the first message and the number of the second message according to the value of the T/W (for example, the number of the second message may be one)
  • the total number of the first message and the second message is greater than or equal to the value of the
  • the waking device may send the number of the first message to the awake device, and further, may send the number of the second message to the awake device. It can be seen that the wake-up device sends the number of the first message to the wake-up device to provide a basis for the wake-up device to determine the sleep time of the auxiliary WUR interface.
  • the method may further include: the wake-up device acquires a minimum time interval between two adjacent first messages (referred to as T1); and the wake-up device sends the two adjacent first messages to the receiving device. The minimum time interval between. Similarly, the wake-up device acquires a minimum time interval between the adjacent first message and the second message (denoted as T2); the minimum time between the wake-up device sending the adjacent first message and the second message to the awakened device interval. Similarly, the wake-up device acquires a minimum time interval between two adjacent second messages (denoted as T3); and the wake-up device sends a minimum time interval between two adjacent second messages to the device being woken up.
  • T1 a minimum time interval between two adjacent first messages
  • T3 the wake-up device sends the two adjacent first messages to the receiving device.
  • T1, T2 and T3 are related to the length W of the above-mentioned wake-up window, for example, T1, T2 and T3 may both be W/2. It can be seen that the wake-up device sends T1, T2 and T3 to the wake-up device, so as to provide a basis for the wake-up device to determine the sleep time of the auxiliary WUR interface.
  • the method further includes: the wake-up device determines a sending mode of the first message and the second message, and the wake-up device needs to notify the wake-up device of a sending mode of sending the first message and the second message; the device that is woken up It is necessary to obtain a transmission mode in which the wake-up device transmits the first message and the second message.
  • transmission mode 1 the wake-up device may first send K first messages, and then send 1 second message, where K is a positive integer greater than or equal to 1.
  • the wake-up device needs to send the sending mode of the first message and the second message, and the parameter K to the wake-up device; the wake-up device needs to obtain the sending mode in which the wake-up device sends the first message and the second message, and the parameter K.
  • Transmit mode 2 The wake-up device can send one second message every time the M first messages are sent, repeat the transmission mode, and wake up the last wake-up message sent by the device to the second message.
  • the total number of the first message and the second message is required to be greater than or equal to T/W, and the time interval between the first first message and the last second message is less than or equal to T.
  • the waking device needs to send the sending mode of the first message and the second message, and the parameter M to the awake device; the awake device needs to obtain the sending mode of the waking device to send the first message and the second message, and the parameter M.
  • Transmission mode 3 The wake-up device may first send one second message, then send M first messages, and then send one second message, repeat the transmission mode, and wake up the device to send the wake-up message as the second message. .
  • the total number of the first message and the second message needs to be greater than or equal to T/W, and the time interval between the first second message and the last second message is less than or equal to T.
  • the waking device needs to send the sending mode of the first message and the second message, and the parameter M to the awake device; the awake device needs to obtain the sending mode of the waking device to send the first message and the second message, and the parameter M.
  • the transmission mode may be multiple, and is not limited to the above three transmission modes.
  • the combination manner has a common point: first sending the first message, and then sending the second message, the first message is used to indicate that the wakeup device is sending the first message. A second message will be sent to the device being woken up. It can be seen that the wake-up device informs the awakened device of the sending mode, which enriches the technical solution of the present application.
  • the first message may further include at least one of the following information: a traditional 802.11 preamble, a frame type, identification information of the awake device, identification information of the awake device, and group information of the awake device. , counter information, frame authentication information, and frame check information.
  • the second message may further include at least one of the following information: a legacy 802.11 preamble, a frame type, identification information of the awake device, counter information, frame authentication information, and frame check information.
  • a second aspect of the embodiments of the present invention provides a method for waking up a wireless device, which may include: the awake device receives a message through the auxiliary WUR interface of the awake device, and the message received by the awake device's auxiliary WUR interface includes the awake device. a first message of the at least one first message, wherein the first message includes a wake-up preamble, the first message is used to indicate to the device being woken that the wake-up device sends a second message to the wake-up device after sending the first message WUR interface. Thereafter, the awakened device determines an operating state of the auxiliary WUR interface according to the received first message, such as determining a sleep time, determining a wake-up time, and the like.
  • the awake device receives the second message sent by the awake device through the auxiliary WUR interface of the awake device, the second message may be generated by the awake device, the second message includes the wakeup preamble, and the second message further includes the auxiliary WUR of the awake device.
  • the identification information or the grouping information of the interface, the second message being longer than the first message (eg, the second message is longer than the transmission time of the first message and/or the time occupied by the air interface is longer).
  • the wake-up device determines whether to wake up the main communication interface of the wake-up device according to the second message.
  • the wake-up device first sends a first message (which may be referred to as a short wake-up frame, which is shorter than the length of the wake-up frame existing in the prior art, such as shown in FIG. 5) to the auxiliary WUR interface of the wake-up device, and then transmits.
  • the second message (which may be referred to as a long wake-up frame, the specific frame structure may be a frame structure of a wake-up frame existing in the prior art, as shown in FIG. 6) is provided to the auxiliary WUR interface of the device to be woken up, and is awakened by the second message. Wake up the device's main communication interface.
  • the embodiment of the present invention replaces a part of the second message by using the shorter first message.
  • the technical solution of the present invention can reduce the occupation time of the message to the air interface during the wake-up operation, thereby improving the air interface efficiency and reducing the other Interference caused by equipment.
  • the determining, by the wake-up device, whether the wake-up device wakes up the main communication interface according to the second message may be: the wake-up device determines whether the identifier information in the received second message is assisted by the wake-up device. The identification information of the WUR interface matches. If the device matches, the wake-up device determines that the working state of the main communication interface of the device to be awake needs to be awake.
  • the The working state of the main communication interface of the wake-up device is switched to the awake state; if the working state of the main communication interface of the awake device is currently awake, it may remain awake; if not, the device is awake Determining that the working state of the main communication interface of the device to be awakened may be a sleep state, that is, the working state of the main communication interface of the device to be awake does not need to be switched to the awake state (if the working state of the main communication interface of the device being awake is currently awake To the state, you can switch to the sleep state; if the working state of the main communication interface of the device being woken up is currently Hibernation, it can remain dormant).
  • the awake device determines whether the packet information in the received second message matches the packet information of the auxiliary WUR interface of the awake device. If the packet is matched, the awake device determines that the working state of the main communication interface of the awake device needs to be Wake up state; if not, the device being woken up determines the working state of the main communication interface of the device being woken up Is in a dormant state.
  • the packet information may also be a broadcast address or multicast address information.
  • the awakened device needs to check whether the identifier information carried in the received second message matches the identifier information of the auxiliary WUR interface of the wake-up device, or the wake-up device needs to detect whether the packet information carried in the received second message is Matching packet information of the awakened device: if the identification information or the packet information does not match, the awakened device ignores the received second message, that is, stops receiving and processing the received second message; if the identification information or the group information matches, The wake-up device can then choose to wake up the main communication interface of the wake-up device. It can be seen that two methods for determining the working state of the main communication interface of the awakened device are provided, thereby perfecting the technical solution of the present application.
  • the awake device may further include: the awake device authenticates the second message, and if the authentication passes, the trigger is The wake-up device determines whether to wake up the action of the master communication interface of the wake-up device according to the second message.
  • the wake-up device checks the second message, and if the check passes, triggers the wake-up device to determine whether to wake up the action of the main communication interface of the wake-up device according to the second message. It can be seen that in order to ensure the correctness and authenticity of the second message, the second message can be authenticated and verified to ensure correct and secure communication.
  • the method may further include: determining, by the wake-up device, a period of the work cycle of the auxiliary WUR interface of the wake-up device (referred to as T) and a length of the wake-up window (denoted as W); or, being awakened
  • T a period of the work cycle of the auxiliary WUR interface of the wake-up device
  • W a length of the wake-up window
  • the device receives the period T of the duty cycle of the auxiliary WUR interface of the wake-up device sent by the wake-up device and the length W of the wake-up window. It can be seen that the wake-up device can obtain the cycle T of the working cycle of the auxiliary WUR interface of the wake-up device and the length W of the wake-up window in two ways, thereby enhancing the diversity and selectivity of the solution.
  • the method may further include: the wake-up device calculates a value of the quotient of the period T of the working cycle divided by the length W of the awake window, that is, T/W, and the wake-up device according to the value of the T/W Determining the number of the first message and the number of the second message, wherein the total number of the first message and the second message is greater than or equal to the value of the quotient. Then, the waking device can send the number of the first message and the number of the second message to the awake device, that is, the awake device receives the number of the first message sent by the waking device and the number of the second message. It can be seen that the wake-up device sends the number of the first message and the number of the second message to the wake-up device, so as to provide a basis for the wake-up device to determine the sleep time of the auxiliary WUR interface.
  • the method may further include: acquiring, by the wake-up device, a minimum time interval between two adjacent first messages (referred to as T1), for example, the wake-up device sets two adjacent first ones. a minimum time interval between messages, or a minimum time interval between the two adjacent first messages sent by the wake-up device to receive the wake-up device; and/or, the wake-up device acquires the adjacent first message and the second message
  • T2 a minimum time interval between the adjacent first message and the second message
  • the wake-up device receives the adjacent first message sent by the wake-up device
  • T3 a minimum time interval between two adjacent second messages
  • the awakened device determines, according to the received first message, that the working state of the auxiliary WUR interface is: the wake-up device keeps the auxiliary WUR interface of the wake-up device after receiving the first message. a state, waiting to receive a message, the message waiting to be received may be the first message or the second message; or, the wake-up device determines, according to the content of the received first message, the sleep time of the auxiliary WUR interface of the wake-up device, the device being woken up According to the sleep time of the auxiliary WUR interface, the auxiliary WUR interface first enters the sleep state, and then wakes up after the sleep time ends to wait to receive the message, and the message waiting to be received may be the first message or the second message.
  • the awakened device determines the auxiliary WUR interface according to the first message.
  • the sleep time is a minimum time interval between the adjacent first message and the second message; if K is greater than 1, the wake-up device determines, according to the first message, that the sleep time of the auxiliary WUR interface is: two adjacent first messages. The minimum time interval between, and the smaller of the minimum time interval between the adjacent first message and the second message.
  • SWUP Short Wake-Up Packet
  • LWUP Long Wake-Up Packet
  • the sleep time of the auxiliary WUR interface can be: G 1 ; where G 1 is the minimum time interval between the wakeup device sending an adjacent SWUP and an LWUP. In this case, the wake-up device needs to obtain the minimum time interval G 1 between the adjacent one of the SWUP and one LWUP sent by the wake-up device. If K is greater than 1, the sleep time of the secondary WUR interface may be: the smaller of G 1 and G 2 ; wherein G 2 is the minimum time interval between the two SWUPs that the wake-up device sends.
  • the wake-up device needs to obtain the minimum time interval G 1 between the adjacent one SWUP and one LWUP sent by the wake-up device and the minimum time interval G 1 between the adjacent two SWUPs sent by the wake-up device. .
  • the awake device can determine whether the received first message is a SWUP based at least on the frame type. If the frame format of the SWUP includes frame check information, the awake device can determine whether the received SWUP is correct according to at least the frame check information.
  • the awakened device may detect whether the basic service set information carried in the received SWUP is the same as its own basic service set information; if not, the wake-up device ignores the received SWUP, that is, stop receiving or processing SWUP; if the same, the awake device determines the working state of the first wireless interface of the awake device according to at least the content of the received SWUP. If the frame format of the SWUP includes packet information, the awake device can detect whether the packet information carried in the received SWUP is the same as its own group information; if not, the awake device ignores the received SWUP, that is, stops receiving.
  • the SWUP will be processed; if the same, the awake device determines the working state of the first wireless interface of the receiving device based at least on the content of the received SWUP. It can be seen that two methods for determining the working state of the auxiliary WUR interface are provided, and the technical solution of the present application is improved.
  • the count field is used to count the first message received by the auxiliary WUR interface in the K first messages
  • the wake-up device receives the The first message determines that the working state of the auxiliary WUR interface may also be: if K is greater than 1, the awake device may be based on the count value of the count field in the first message, the number of the first message, and the adjacent two The minimum time interval between messages and the minimum time interval between adjacent first messages and second messages determine the sleep time of the secondary WUR interface.
  • the method further includes: the wake-up device determines a sending mode of the first message and the second message, and the wake-up device needs to notify the wake-up device of a sending mode of sending the first message and the second message; the device that is woken up It is necessary to obtain a transmission mode in which the wake-up device transmits the first message and the second message.
  • transmission mode 1 the wake-up device may first send K first messages, and then send 1 second message, where K is a positive integer greater than or equal to 1.
  • the wake-up device needs to send the sending mode of the first message and the second message, and the parameter K to the wake-up device; the wake-up device needs to obtain the sending mode in which the wake-up device sends the first message and the second message, and the parameter K.
  • Transmit mode 2 The wake-up device can send one second message every time the M first messages are sent, repeat the transmission mode, and the last message sent by the wake-up device is the second message.
  • the total number of the first message and the second message is required to be greater than or equal to T/W, and the time interval between the first first message and the last second message is less than or equal to T.
  • the waking device needs to send the sending mode of the first message and the second message, and the parameter M to the awake device; the awake device needs to obtain the sending mode of the waking device to send the first message and the second message, and the parameter M.
  • Transmission mode 3 The wake-up device may first send one second message, then send M first messages, and then send one second message, repeat the transmission mode, and the wake-up device finally sends the second message.
  • the total number of the first message and the second message needs to be greater than or equal to T/W, and the time interval between the first second message and the last second message is less than or equal to T.
  • the waking device needs to send the sending mode of the first message and the second message, and the parameter M to the awake device; the awake device needs to obtain the sending mode of the waking device to send the first message and the second message, and the parameter M.
  • the transmission mode may be multiple, and is not limited to the above three transmission modes.
  • the combination manner has a common point: first sending the first message, and then sending the second message, the first message is used to indicate that the wake-up device sends the second message to the wake-up device after sending the first message. It can be seen that the wake-up device informs the awakened device of the sending mode, which enriches the technical solution of the present application.
  • the first message may further include at least one of the following information: a traditional 802.11 preamble, a frame type, identification information of the awake device, identification information of the awake device, and group information of the awake device. , counter information, frame authentication information, and frame check information.
  • the second message may further include at least one of the following information: a legacy 802.11 preamble, a frame type, identification information of the awake device, counter information, frame authentication information, and frame check information.
  • a third aspect of the embodiments of the present invention provides a wake-up device, which can implement the functions of the method provided by the foregoing first aspect or any optional implementation of the first aspect, where the function can be implemented by software,
  • the software includes modules corresponding to the above functions, each of which is used to perform a corresponding function.
  • the fourth aspect of the embodiments of the present invention provides a wake-up device, which can implement the functions of the method provided by any of the foregoing second aspect or the optional implementation of the second aspect, where the function can be implemented by software.
  • the software includes modules corresponding to the above functions, and each module is used to perform corresponding functions.
  • a fifth aspect of the embodiments of the present invention provides a wake-up device, where the wake-up device may include: a memory, a processor And a communication module; the memory is configured to store the instruction; the processor is configured to invoke the memory stored instruction, and the method provided by the optional implementation of the first aspect or the first aspect, the communication module performs the receiving and transmitting of the message.
  • the communication module may include a main communication module and an auxiliary wake-up module, and the auxiliary wake-up module is configured to send the first message described in the foregoing first aspect or any optional implementation manner of the first aspect. And the second message.
  • a sixth aspect of the embodiments of the present invention provides a wake-up device, where the awake device may include: a memory, a processor, an auxiliary wake-up module, and a main communication module; a memory is configured to store an instruction; and a processor is configured to invoke a memory-stored instruction, Executing the method provided by the foregoing second aspect or any optional implementation manner of the second aspect, the processor may control the wakeup of the main communication module by using an auxiliary wakeup module, and the auxiliary wakeup module receives the second aspect or the second The first message and the second message described in any of the alternative implementations.
  • the auxiliary wake-up module includes a first wireless interface (which may be an auxiliary wake-up interface), and the primary communication module includes a second wireless interface (which may be a primary communication interface), and the first wireless interface and the second wireless interface are both For the communication interface.
  • a seventh aspect of the embodiments of the present invention provides a system for waking up a wireless device, where the system for waking up a wireless device includes: a wake-up device and a wake-up device; and the wake-up device is configured to perform any of the foregoing first aspect or the first aspect.
  • Implementation The method provided by the wake-up device is for performing the method provided by any of the alternative implementations of the second aspect or the second aspect above.
  • An eighth aspect of the embodiments of the present invention provides a computer program product comprising instructions, when executed on a computer, causing a computer to perform the above first aspect, any optional implementation of the first aspect, the second aspect or the The method of any of the alternative implementations of the two aspects.
  • a ninth aspect of the embodiments of the present invention further provides a computer readable storage medium for storing computer software instructions for the above-mentioned wake-up device, which is designed to perform the functions implemented by the wake-up device in the above embodiments. program.
  • a tenth aspect of the embodiments of the present invention further provides a computer readable storage medium for storing computer software instructions for use by the awake device, which includes functions for performing the implemented by the awake device in the foregoing embodiments. Designed program.
  • the sending device sends the first message to the first wireless interface of the receiving device, and then sends the second message to the first wireless interface of the receiving device, where the second message is used to indicate that the receiving device wakes up.
  • the second wireless interface of the receiving device Since the first message is shorter than the second message (eg, the first message is shorter than the second message and/or the occupied time is short), the technical solution of the present invention replaces a part of the second message by the first message, compared to The information in the existing solution is all the second message.
  • the technical solution of the present invention can reduce the occupation time of the message to the air interface during the wake-up operation, thereby improving the air interface efficiency and reducing the interference to other devices.
  • FIG. 1A is a schematic diagram of a wake-up operation in a synchronous mode in the prior art
  • FIG. 1B is a schematic diagram of a wake-up operation in an asynchronous mode in the prior art
  • FIG. 2 is a schematic diagram of a primary communication interface of a first wireless device waking up a second wireless device through an auxiliary WUR module;
  • FIG. 3 is a schematic diagram of a wake-up operation in an asynchronous mode according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of an embodiment of a method for waking up a wireless device according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of a SWUP according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of an LWUP according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic diagram of another embodiment of a method for waking up a wireless device according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of another SWUP according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic diagram of another embodiment of a method for waking up a wireless device according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of another SWUP according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of another SWUP according to an embodiment of the present disclosure.
  • FIG. 12 is a schematic diagram of an embodiment of a sending device according to an embodiment of the present invention.
  • FIG. 13 is a schematic diagram of another embodiment of a sending device according to an embodiment of the present invention.
  • FIG. 14 is a schematic diagram of another embodiment of a transmitting device according to an embodiment of the present invention.
  • FIG. 15 is a schematic diagram of an embodiment of a receiving device according to an embodiment of the present invention.
  • FIG. 16 is a schematic diagram of another embodiment of a receiving device according to an embodiment of the present invention.
  • FIG. 17 is a schematic diagram of an embodiment of a system for waking up a wireless device according to an embodiment of the present invention. .
  • the embodiment of the invention provides a method for waking up a wireless device, a sending device and a receiving device, which can reduce the occupation time of the message to the air interface during the wake-up operation, thereby improving the air interface efficiency and reducing interference to other devices.
  • Wi-Fi communication technology In order to apply Wi-Fi communication technology to IOT devices and wearable electronic devices, it is very necessary to improve and reduce the power consumption of Wi-Fi communication technology.
  • IOT devices such as stations (STAs)
  • STAs STAs idle listening channels waste a lot of power.
  • the Wi-Fi communication technology introduces a dormancy mechanism, that is, the Wi-Fi module in the STA enters sleep and turns off the receiving transmitter without data transmission, thereby causing the STA to sleep. status. But this will produce communication Delay, data cannot be transmitted in real time. Although it is possible to reduce the communication delay by setting the sleep mode, it increases the power consumption.
  • the Wi-Fi communication technology introduces an auxiliary WUR module, which is an ultra-low-power wireless module added to a wireless device (such as a STA), and a main communication module of the wireless device, such as a Wi-Fi module. presence.
  • a wireless device such as a STA
  • a main communication module of the wireless device such as a Wi-Fi module. presence.
  • the primary communication module of the wireless device enters deep sleep and turns on the auxiliary WUR module for ultra low power listening.
  • FIG. 2 is a schematic diagram of a primary communication interface of a first wireless device waking up a second wireless device through an auxiliary WUR module.
  • the first wireless device wake-up device
  • the second wireless device a wake-up device
  • the first wireless device first sends a wake-up packet (WUP) to the secondary WUR module of the second wireless device.
  • the secondary WUR module of the second wireless device checks the Receiver Address (RA) of the wake-up frame and determines the correctness and authenticity of the wake-up frame. If the RA of the wake-up frame matches the address of the secondary WUR module of the second wireless device, and the wake-up frame is correct and authentic, the secondary WUR module of the second wireless device sends a wake-up signal to the primary communication module of the second wireless device to Wake up the primary communication module of the second wireless device. Since the average power consumption of the auxiliary WUR module of the wake-up device is very low, the power consumption can be reduced. However, if the auxiliary WUR module of the wake-up device is always active, the auxiliary WUR module will also consume considerable power. Therefore, it is necessary to further reduce the power consumption of the auxiliary WUR module of the wake-up device.
  • RA Receiver Address
  • FIG. 3 is a schematic diagram of a wake-up operation in an asynchronous mode.
  • the wake-up device can send K SWUPs and 1 LWUP in a wake-up attempt, where K is a positive integer greater than or equal to 1.
  • the time interval between the wake-up devices transmitting adjacent SWUPs is V, and the time interval between adjacent SWUPs and LWUPs is also V.
  • the length of the wake-up window of the auxiliary WUR module of the wake-up device is W, and the period of the work cycle of the auxiliary WUR module of the wake-up device is T.
  • the one-wake attempt refers to waking up the device to wake up the wake-up device once.
  • the wake-up device sends in a wake-up attempt. 4 and SWUP and one LWUP. Specifically, the following steps are included: 1.
  • the wake-up device generates and sends a SWUP to the target wake-up device. Introducing SWUP, replacing a part of LWUP with SWUP, and instructing the wake-up device to send LWUP after SWUP through SWUP.
  • the SWUP includes at least a Wake-up Preamble.
  • the SWUP may further include network information of the wake-up device, such as a Basic Service Set Identifier (BSSID); the SWUP may further include identification information, counter information, and the like of the target wake-up device.
  • BSSID Basic Service Set Identifier
  • the target wake-up device receives the SWUP, and determines the working state of the WUR interface of the target wake-up device based at least on the content of the received SWUP.
  • the determining the working state of the WUR of the target awakened device may include determining a sleep time of the WUR interface.
  • the target wake-up device may keep its WUR interface active after receiving the SWUP (ie, the sleep time is 0), waiting to receive the message, the message may include SWUP and LWUP; or the target wake-up device receives the SWUP
  • the WUR interface can then be put into sleep state first, then wake up after the sleep time is over to wait to receive the message, which can include SWUP and LWUP.
  • SWUP is significantly shorter than LWUP (eg The SWUP has a shorter transmission time than the LWUP and/or takes up less time for the air interface, so as to reduce the occupied air interface time, thereby improving the air interface efficiency. 3.
  • the wake-up device generates and sends the LWUP to the target wake-up device.
  • the LWUP includes at least identification information or grouping information of the wake-up preamble and the target WUR.
  • the LWUP may further include network information of the wake-up device, such as a BSSID; the LWUP may further include wake-up device information, frame type information, and frame check information.
  • the target wake-up device receives the LWUP and determines the operational state of the target wake-up device based at least on the received LWUP. For example, the target-awaken device may choose to wake up its primary communication interface to communicate with the wake-up device.
  • the technical solutions of the present application may be, but are not limited to, the following scenarios: Wi-Fi-based Internet of Things and wearable Wi-Fi networks.
  • the wearable Wi-Fi network refers to a Wi-Fi network composed of a mobile phone or other mobile terminal as a software-enabled access point (SoftAP) and an associated wearable device.
  • SoftAP software-enabled access point
  • the devices in the Internet of Things and wearable Wi-Fi networks are powered by small capacity batteries, and the devices have low power consumption and long battery life requirements.
  • an embodiment of a method for waking up a wireless device according to an embodiment of the present invention includes:
  • the sending device sends at least one first message to the first wireless interface of the receiving device, where the first message includes a wake-up preamble;
  • the sending device acquires the first message, and the sending device sends the obtained first message to the first wireless interface of the receiving device.
  • the sending time of the at least one of the at least one first message is in a wake-up window of the first wireless interface of the receiving device, the first message includes a wake-up preamble, and the first message is used to indicate to the receiving device that the sending device is transmitting the first
  • the message is followed by a second message to the first wireless interface of the receiving device.
  • the first message may further include at least one of the following information: a traditional 802.11 preamble, a frame type, identification information of the transmitting device, identification information of the receiving device, grouping information of the receiving device, counter information, frame authentication information, and frame check. information.
  • the sending device in this embodiment may be a wake-up device, and the receiving device may be a wake-up device, and the number of the devices to be awake may be one or more, which is not limited herein.
  • the receiving device may have two wireless interfaces, namely a first wireless interface and a second wireless interface, wherein the first wireless interface may be an auxiliary wake-up interface (such as a WUR interface), and the second wireless device may be a primary communication interface (such as Wi -Fi interface).
  • the sending, by the sending device, the first message may be used in the following manner. Specifically, before the sending, by the sending device, the first message to the first wireless interface of the receiving device, the sending device further includes: sending, by the sending device, the first message; or sending The device receives a first message sent by the target device, where the target device is different from the sending device and the receiving device. It can be seen that the sending device acquires the first message in at least two ways, thereby increasing the diversity and selectivity of the solution.
  • the first message may be a SWUP
  • the second message may be an LWUP
  • the SWUP is used to indicate to the receiving device that the sending device sends the LWUP to the receiving device after sending the SWUP.
  • FIG. 5 it is a schematic diagram of a possible SWUP structure.
  • the SWUP includes at least a wake-up preamble.
  • the SWUP frame format may further include a legacy 802.11 Preamble, a Frame Type, and a basic service set information. (BSS Info), one or more of grouping information (Group ID) and frame check information of the receiving device, wherein the frame check information may be a Frame Check Sequence (FCS) and/or a message true Message Integrity Code (MIC).
  • FCS Frame Check Sequence
  • MIC message true Message Integrity Code
  • the grouping information of the receiving device may be a multicast group number or a multicast wake-up group to which the receiving device belongs.
  • the number, multicast group number and/or multicast wake-up group number can be assigned by an Access Point (AP) supporting the 802.11 protocol.
  • AP Access Point
  • multicast wake-up and packet information (such as a multicast wake-up group number) can be used when the transmitting device needs to wake up multiple receiving devices.
  • the receiving device determines, according to the first message, an working state of the first wireless interface of the receiving device.
  • the receiving device determines, according to the first message, that the working status of the first wireless interface of the receiving device is: the receiving device determines that the first wireless interface of the receiving device is in a awake state after receiving the first message; or The receiving device determines, according to the first message, a sleep time of the first wireless interface of the receiving device; the first wireless interface of the receiving device remains in a sleep state during the sleep time, and after the sleep time ends, maintaining the first wireless interface of the receiving device is Wake up.
  • the receiving device determines, according to the first message, the sleep of the first wireless interface of the receiving device.
  • the time may be: if K is equal to 1, the receiving device determines, according to the first message, that the sleep time of the first wireless interface is a minimum time interval between the adjacent first message and the second message; if K is greater than 1, the receiving device Determining, according to the first message, a sleep time of the first wireless interface of the receiving device is: a minimum time interval between two adjacent first messages, and a minimum time interval between the adjacent first message and the second message The smaller one.
  • the sleep time of the first wireless interface may be: G 1; Where G 1 is the minimum time interval between the sending of a neighboring SWUP and an LWUP by the transmitting device. In this case, the receiving device needs to obtain the minimum time interval G 1 between the adjacent one of the SWUP and one LWUP transmitted by the transmitting device. If K is greater than 1, the sleep time of the first wireless interface may be: the smaller of G 1 and G 2 ; wherein G 2 is the minimum time interval between the sending of the two adjacent SWUPs by the transmitting device. In this case, the receiving device needs to obtain the minimum time interval G 1 between the adjacent one SWUP and one LWUP transmitted by the transmitting device and the minimum time interval G 1 between the adjacent two SWUPs sent by the transmitting device.
  • the receiving device may determine, according to at least the frame type, whether the received first message is a SWUP.
  • the receiving device may determine whether the received SWUP is correct according to at least the frame check information.
  • the receiving device may detect whether the basic service set information carried in the received SWUP is the same as its own basic service set information; if not, the receiving device ignores the received SWUP. That is, the receiving and processing of the SWUP is stopped; if the same, the receiving device determines the working state of the first wireless interface of the receiving device based at least on the content of the received SWUP.
  • the receiving device may detect whether the packet information carried in the received SWUP is the same as its own group information; if not, the receiving device ignores the received SWUP, that is, stops receiving and processing. SWUP; if the same, the receiving device determines the working state of the first wireless interface of the receiving device according to at least the content of the received SWUP.
  • the packet information may be broadcast address information or multicast address information.
  • the sending device generates a second message.
  • the second message includes a wake-up preamble, and the second message further includes a label of the first wireless interface of the receiving device. Knowing information or grouping information, the second message is longer than the first message, for example, the second message is longer than the first message and/or takes up a long time.
  • the second message may further include at least one of the following information: a legacy 802.11 preamble, a frame type, identification information of the transmitting device, counter information, frame authentication information, and frame check information.
  • the second message may be an LWUP, and the LWUP is used to wake up the primary communication interface of the receiving device.
  • FIG. 6 it is a schematic diagram of a possible LWUP structure, where the LWUP includes at least a wake-up preamble and a receive address (Receive Address, RA).
  • the wake-up preamble is used to implement symbol synchronization and automatic gain control (AGC) settings.
  • AGC automatic gain control
  • the receiving address is used to identify the target recipient of the LWUP, the receiving address may include network identification information and the wake-up radio identification information of the receiving device; or the receiving address may be a combination of the network identifier and the wake-up radio identifier of the receiving device; or the receiving address may be receiving The wake-up radio identification of the device.
  • the wake-up radio identity of the receiving device can be selected and assigned by the AP.
  • the network identifier can be used to identify the basic service set information to which the LWUP belongs and the information of the associated AP.
  • the network identity may be part of the wake-up radio identity of the receiving device.
  • the LWUP may further include a legacy 802.11 preamble, and/or frame type information, and/or a Receive Address (RA) and/or a Transmit Address (TA), and/or control information (Control). Info), and/or Counter information, and/or Message Integrity Code (MIC), and/or FCS.
  • the traditional 802.11 preamble portion can be used for backward compatibility, so that the traditional Wi-Fi device can determine that the current frame is a Wi-Fi frame, thereby selecting a corresponding channel listening decision threshold and backoff time.
  • the frame type can be used to indicate the type of wake-up frame.
  • the sender address can be sender related information.
  • Control information can be used to indicate information such as control commands and link parameters.
  • the counter information can be used to help the receiving end to implement the correctness check and authenticity authentication of the received wake-up frame.
  • the authentication information can be used to help the receiving end to verify the authenticity of the received LWUP.
  • the frame check sequence can be used to help the receiving end verify the correctness of the received LWUP.
  • LWUP is significantly longer than SWUP (for example, LWUP has longer transmission time than SWUP and/or takes up longer air interface time).
  • the length of LWUP can be three times the length of SWUP, that is, the transmission duration of LWUP is the transmission of SWUP. 3 times the duration and/or the occupied air interface duration of the LWUP is 3 times the length of the occupied air interface of the SWUP.
  • the sending device sends a second message to the first wireless interface of the receiving device.
  • the receiving device receives the second message sent by the sending device by using the first wireless interface.
  • the first wireless interface can be an auxiliary wake-up interface of the receiving device.
  • the receiving device determines, according to the second message, an working state of the second wireless interface of the receiving device.
  • the receiving device determines, according to the second message, that the working status of the second wireless interface of the receiving device is: the receiving device determines whether the identifier information in the received second message is different from the identifier information of the first wireless interface of the receiving device. Matching, if matched, the receiving device determines that the working state of the second wireless interface of the receiving device is a wake-up state; if not, the receiving device determines that the working state of the second wireless interface of the receiving device is a sleep state. or,
  • the receiving device determines whether the packet information in the received second message matches the packet information of the first wireless interface of the receiving device, and if yes, the receiving device determines that the working state of the second wireless interface of the receiving device is the awake state; If there is no match, the receiving device determines that the working state of the second wireless interface of the receiving device is a sleep state.
  • the packet information may also be a broadcast address or a multicast address.
  • the receiving device determines, according to the second message, the working status of the second wireless interface of the receiving device, To include:
  • the receiving device authenticates the second message, and if the authentication passes, performs the step of determining, by the receiving device, the working state of the second wireless interface of the receiving device according to the second message.
  • the receiving device may further include:
  • the receiving device checks the second message, and if the check passes, performs the step of determining, by the receiving device, the working state of the second wireless interface of the receiving device according to the second message.
  • the awakened device needs to check whether the identifier information carried in the received LWUP matches the identifier information of the auxiliary wake-up interface of the wake-up device, or the wake-up device needs to detect whether the packet information carried in the received LWUP matches the wake-up device.
  • Grouping information If the identification information or the grouping information does not match, the awakened device ignores the received LWUP, that is, stops receiving and processing the received LWUP; if the identification information or the grouping information matches, the awakened device may need to further receive The LWUP to the frame performs frame correctness check and/or frame authenticity authentication.
  • the awake device determines the working state of the main communication interface of the awake device according to at least the content of the LWUP, that is, determines Wake up the main communication interface of the wake-up device.
  • the sending device sends the first message to the first wireless interface of the receiving device, and then sends the second message to the first wireless interface of the receiving device, and wakes up the second wireless interface of the receiving device by using the second message. Since the first message is shorter than the second message (eg, the first message is shorter than the second message and/or the occupied time is short), the technical solution of the present invention replaces a part of the second message by the first message, compared to The information in the existing solution is all the second message. Obviously, the technical solution of the present invention can reduce the occupation time of the message to the air interface during the wake-up operation, thereby improving the air interface efficiency and reducing the interference to other devices.
  • the method further includes:
  • the sending device acquires a cycle of the work cycle of the first wireless interface of the receiving device and a length of the wake-up window.
  • the sending device can obtain the period of the working cycle of the first wireless interface of the receiving device and the length of the wake-up window.
  • the wake-up device can obtain the cycle of the work cycle of the auxiliary wake-up interface of the wake-up device (referred to as T) and the length of the wake-up window in the following manner (remember For W), for example:
  • the wake-up device determines the period T of the duty cycle of the wake-up interface of the wake-up device and the length W of the wake-up window. It should be noted that the wake-up device may send the period T of the working cycle of the auxiliary wake-up interface and the length W of the wake-up window to the wake-up device.
  • the wake-up device determines the period T of the duty cycle of the auxiliary wake-up interface and the length W of the wake-up window, and transmits the period T of the work cycle of the auxiliary wake-up interface and the length W of the wake-up window to the wake-up device.
  • the method further includes:
  • the receiving device acquires a period of a work cycle of the first wireless interface of the receiving device and a length of the awake window.
  • the receiving device can preset the period of the working cycle of the first wireless interface of the receiving device and the length of the wake-up window, or the receiving device can receive the work of the first wireless interface of the receiving device sent by the transmitting device. The period of the loop and the length of the wakeup window.
  • the sending device may further determine the number of the first message and the number of the second message according to the period of the working cycle of the first wireless interface of the receiving device and the length of the awake window.
  • the method further includes:
  • the sending device determines the number of first messages to be sent
  • the sending device sends the number of the first message to the receiving device; wherein the total number of the first message and the second message is greater than or equal to the period of the working cycle divided by the quotient of the length of the awake window, ie T/W.
  • the number of the second message can be set to 1.
  • the number of the first message is set to 5
  • the number of the second message may be set to 1, which is not limited herein.
  • the sending device sends the number of the first message to the receiving device, so as to provide a basis for the receiving device to determine the sleep time of the first wireless interface.
  • the method further includes:
  • the receiving device receives the number of the first message sent by the sending device, and the total number of the first message and the second message is greater than or equal to the period of the working cycle divided by the quotient of the length of the awake window.
  • the method further includes:
  • the sending device acquires a minimum time interval between two adjacent first messages
  • the sending device sends a minimum time interval between two adjacent first messages to the receiving device.
  • the sending device acquires a minimum time interval between the adjacent first message and the second message
  • the sending device sends a minimum time interval between the adjacent first message and the second message to the receiving device.
  • the sending device obtains a minimum time interval between two adjacent second messages
  • the sending device sends a minimum time interval between two adjacent second messages to the receiving device.
  • the wake-up device may determine the minimum time interval (indicated as T1) between the two adjacent SWUPs according to at least the period T of the duty cycle of the auxiliary wake-up interface of the wake-up device and the length W of the wake-up window.
  • T1 the minimum time interval between the adjacent SWUP and LWUP
  • T3 the minimum time interval between adjacent two LWUPs
  • T1, T2, and T3 can all be W/2.
  • the method further includes:
  • the receiving device acquires a minimum time interval between two adjacent second messages.
  • the time interval (denoted as V) between the actual two adjacent wake-up frames (SWUP and LWUP) needs to be less than or equal to the length W of the wake-up window of the auxiliary wake-up interface, that is, V ⁇ W. Since the wake-up device needs to contend for the channel to send the wake-up frame, the time interval V between the actual adjacent two wake-up frames is a random amount, and the randomness of V is caused by the wake-up device competing channel.
  • the wake-up device can continuously transmit K SWUPs and 1 LWUP, where K is a positive integer greater than or equal to 1.
  • the method further includes:
  • the sending device determines a sending mode of the first message and the second message, where the sending mode includes periodic sending;
  • the transmitting device transmits the transmission mode to the receiving device.
  • the waking device needs to notify the awake device of the sending mode of sending the SWUP and the LWUP; the awake device needs to obtain the sending mode of the waking device sending the SWUP and the LWUP.
  • the method further includes:
  • the receiving device receives a sending mode of the first message and the second message sent by the sending device, and the sending mode includes periodically sending.
  • Wake-up device can send K SWUP first, then send 1 LWUP, where K is a positive integer greater than or equal to 1, and requires K+1 ⁇ T/W, the time between the first SWUP and LWUP The interval is less than or equal to T.
  • the wake-up device needs to send the transmission mode of SWUP and LWUP, and the parameter K to the wake-up device; the wake-up device needs to obtain the transmission mode of the wake-up device to send SWUP and LWUP, and the parameter K.
  • the wake-up device can send one LWUP every time it sends M SWUPs, repeat this transmission mode, and the wake-up message sent by the wake-up device is LWUP.
  • the total number of SWUPs and LWUPs needs to be greater than or equal to T/W, and the time interval between the first SWUP and the last LWUP is less than or equal to T.
  • the wake-up device needs to send the transmission mode of SWUP and LWUP, and the parameter M to the awakened device; the wake-up device needs to obtain the transmission mode of the wake-up device to send SWUP and LWUP, and the parameter M.
  • the wake-up device can send one LWUP first, then send M SWUPs, and then send one LWUP, repeat this transmission mode, and the wake-up message sent by the wake-up device is LWUP.
  • the total number of SWUPs and LWUPs needs to be greater than or equal to T/W, and the time interval between the first LWUP and the last LWUP is less than or equal to T.
  • the wake-up device needs to send the transmission mode of SWUP and LWUP, and the parameter M to the awakened device; the wake-up device needs to obtain the transmission mode of the wake-up device to send SWUP and LWUP, and the parameter M.
  • the combination of the sending of the SWUP and the LWUP may be various, that is, the transmission mode may be multiple.
  • the present application does not limit the foregoing three transmission modes, and other transmission modes may be used in the present application, which is not limited herein. And these combinations have one thing in common: first send SWUP, then send LWUP, SWUP is used to indicate that the wake-up device will send LWUP to the wake-up device after sending SWUP.
  • the wake-up device can send a SWUP and/or LWUP to the awakened device through its primary communication interface or its secondary communication interface.
  • the sending device is a wake-up device
  • the receiving device is a wake-up device
  • the first message is SWUP
  • the second message is LWUP
  • the first wireless interface is an auxiliary WUR interface
  • the second wireless interface is The main communication interface.
  • the method for waking up the wireless device in the embodiment of the present invention is described in the following embodiments. Referring to FIG. 7, another embodiment of the method for waking up the wireless device in the embodiment of the present invention includes:
  • the wake-up device generates a SWUP, where the SWUP includes a short WUR identifier of the wake-up preamble and the auxiliary WUR interface.
  • the SWUP frame format includes a short WUR identifier of the wake-up preamble and the auxiliary WUR interface
  • the wake-up device can determine whether it is the target of the received SWUP according to at least the short WUR identifier of the auxiliary WUR interface carried in the SWUP. Receiver.
  • the SWUP includes at least a short WUR ID (Short WUR ID) of the wake-up preamble and the auxiliary WUR interface.
  • the short WUR identifier of the auxiliary WUR interface is the short identifier information of the auxiliary WUR interface, which may be a short WUR address information, or may be a hash value of the WUR address, or may be a truncated value of the WUR address, or may be an AP.
  • a short WUR address or identification information is assigned, or may be a short identification information related to the device being awakened, or identification information of the auxiliary WUR interface, or address information of the auxiliary WUR interface.
  • the SWUP may further include one or more of a legacy 802.11 preamble, a frame type, basic service set information, and frame check information.
  • the wake-up device sends a SWUP to the auxiliary WUR interface of the at least one awake device, where the at least one awake device includes a target awake device;
  • the wake-up device after the wake-up device generates the SWUP, the wake-up device sends the SWUP to the auxiliary WUR interface of the at least one wake-up device.
  • the target wake-up device determines whether it is the target recipient of the SWUP according to the short WUR identifier of the auxiliary WUR interface in the SWUP, if yes, step 204 is performed, and if not, step 208 is performed;
  • the target awake device may check whether the short WUR identifier of the auxiliary WUR interface carried in the received SWUP matches the short WUR identifier of the auxiliary WUR interface of the target awake device. If the target matches, the target is awakened. The device determines that it is the target recipient of the SWUP, and then performs step 204; if not, step 208 is performed.
  • the target wake-up device determines, according to the SWUP, an working state of the auxiliary WUR interface of the target wake-up device;
  • the target wake-up device can keep its auxiliary WUR interface in an active state after receiving the SWUP, that is, wake up, waiting to receive a message, and the message waiting to be received may include SWUP or LWUP.
  • the target wake-up device determines the sleep time of the auxiliary WUR interface according to at least the content of the received SWUP, and the target wake-up device causes the auxiliary WUR interface to enter the sleep state at least according to the sleep time of the auxiliary WUR interface, and then enters the sleep state first, and then at the sleep time.
  • wait for the message to be received, and the message waiting to be received may include SWUP or LWUP.
  • the target wake-up device determines that the sleep time of the auxiliary WUR interface is at least according to the content of the received SWUP:
  • the sleep time of the auxiliary WUR interface may be: G 1 ; where G 1 is the wake-up device sends between an adjacent SWUP and an LWUP. Minimum time interval. In this case, the target wake-up device needs to obtain the minimum time interval G 1 between the adjacent one of the SWUP and one LWUP sent by the wake-up device.
  • the sleep time of the secondary WUR interface may be: the smaller of G 1 and G 2 ; where G 2 is the minimum time interval between the two SWUPs that the wake-up device sends. In this case, the target device wakes up between the minimum time required to obtain a wake-up device adjacent SWUP transmitted and a minimum time interval between LWUP as G 1 in two adjacent SWUP transmitting device and wake-up interval G 1 .
  • the target wake-up device can judge whether the received message is a SWUP based at least on the frame type.
  • the target wake-up device can determine whether the received SWUP is correct according to at least the frame check information.
  • the target wake-up device can detect whether the basic service set information carried in the received SWUP is the same as its own basic service set information; if not, the target is The wake-up device ignores the received SWUP, that is, stops receiving and processing the SWUP; if the same, the target-awaken device determines the working state of the auxiliary WUR interface of the target-awaken device based on at least the content of the received SWUP.
  • BSS Info basic service set information
  • the target wake-up device can detect whether the packet information carried in the received SWUP is the same as its own group information; if not, the target wake-up device ignores the received SWUP, that is, Stopping reception will process the SWUP; if the same, the target wake-up device determines the operating state of the first wireless interface of the receiving device based at least on the content of the received SWUP.
  • the packet information may be a broadcast address or a multicast address.
  • the wakeup device generates an LWUP.
  • the LWUP includes a wake-up preamble, and the LWUP further includes identification information or group information of the auxiliary WUR interface, and the LWUP is longer than the SWUP.
  • the identifier of the auxiliary WUR interface may be the same as the short WUR identifier of the auxiliary WUR interface, and the identifier of the auxiliary WUR interface may be an identifier information related to the wakeup device, or the auxiliary WUR interface. Address information.
  • the LWUP may further include at least one of the following information: a legacy 802.11 preamble, a frame type, identification information of the transmitting device, counter information, frame authentication information, and frame check information.
  • the wake-up device sends an LWUP to the auxiliary WUR interface of the target wake-up device.
  • the target wake-up device receives the LWUP sent by the wake-up device through the auxiliary WUR interface.
  • the target wake-up device determines, according to the LWUP, a working state of the main communication interface of the target wake-up device;
  • the target awake device needs to check whether the identifier information carried in the received LWUP matches the identifier information of the auxiliary WUR interface of the target awake device, or the target awake device needs to detect the group information carried in the received LWUP. Whether to match the packet information of the target wake-up device: if the identification information or the packet information does not match, the target wake-up device ignores the received LWUP, that is, stops receiving and processing the received LWUP; if the identification information or the group information matches, The target awakened device may need to further perform frame correctness check and/or frame authenticity authentication on the received LWUP.
  • the target wake-up device determines the working state of the main communication interface of the target wake-up device according to at least the content of the LWUP. That is, the main communication interface that wakes up the awakened device is determined.
  • the packet information may be a broadcast address or a multicast address.
  • the target wake-up device stops receiving and processing the SWUP.
  • the target wake-up device After the target wake-up device checks that the short WUR identifier of the auxiliary WUR interface carried in the received SWUP does not match the short WUR identifier of the auxiliary WUR interface of the target wake-up device, the target wake-up device determines that it is not For the target recipient of the SWUP, then the target wake-up device will ignore the received SWUP, ie the target wake-up device can stop receiving and processing the SWUP.
  • the waking device first sends the SWUP to the auxiliary WUR interface of the target awake device, and then sends the LWUP to the auxiliary WUR interface of the target awake device, and wakes up the main communication interface of the target awake device through the LWUP. Since the SWUP is shorter than the LWUP (such as the SWUP is shorter than the transmission time of the LWUP and/or the occupied air interface time is short), the technical solution of the present invention replaces a part of the LWUP by the SWUP, and the messages in the existing scheme are all LWUP, obviously, The technical solution of the invention can reduce the occupation time of the message to the air interface during the wake-up operation, thereby improving the air interface efficiency and reducing the interference to other devices.
  • the frame format of the SWUP in this embodiment includes not only the wake-up preamble but also the short WUR identifier of the auxiliary WUR interface. Since the number of the wake-up devices may be multiple, the wake-up device may be at least according to the wake-up device.
  • the short WUR flag of the auxiliary WUR interface in the transmitted SWUP determines whether it is the target receiver of the received SWUP, thereby enriching the technical solution of the present application.
  • the sending device is a wake-up device
  • the receiving device is a wake-up device
  • the first message is SWUP
  • the second message is LWUP
  • the first wireless interface is an auxiliary WUR interface
  • the second wireless interface is mainly
  • the communication interface is taken as an example.
  • the method for waking up the wireless device in the embodiment of the present invention is further described in the following embodiments. Referring to FIG. 9, another embodiment of the method for waking up the wireless device in the embodiment of the present invention includes:
  • the wake-up device generates a SWUP, where the SWUP includes a wake-up preamble and a count field.
  • the wake-up device generates a SWUP
  • the SWUP includes a wake-up preamble and a count field
  • the count field may be used to count the SWUP received by the auxiliary WUR interface of the wake-up device in the K SWUPs, where K is greater than or equal to 1.
  • the integer, count field may be used to help the wake-up device determine the sleep time of the wake-up device's auxiliary WUR interface
  • the SWUP is used to indicate to the wake-up device that the wake-up device will send the LWUP to the wake-up device's auxiliary WUR interface after sending the SWUP.
  • the SWUP may further include a traditional 802.11 preamble, a frame type, basic service set information, packet information of a wake-up device, frame authentication information, and frame check information. one or more.
  • the packet information of the awakened device may be a multicast group number or a multicast wake-up group number to which the wake-up device belongs, and the multicast group number and/or the multicast wake-up group number may be allocated by the AP. For example, when a wake-up device needs to wake up multiple wake-up devices, multicast wake-up and packet information (such as multicast wake-up group number) can be used.
  • the SWUP may further include one of a traditional 802.11 preamble, a frame type, a basic service set information, a short WUR identifier of the auxiliary WUR interface, and frame check information.
  • the short WUR identifier of the auxiliary WUR interface is the short identifier information of the auxiliary WUR interface, which may be a short WUR address information, or may be a hash value of the WUR address, or may be a truncated value of the WUR address, or may be an AP.
  • a short WUR address or identification information is allocated, or may be a short identification information related to the device being woken up, or may be identification information of the auxiliary WUR interface, or may be address information of the auxiliary WUR interface.
  • the number of the devices to be woken up in the embodiment may be one or plural, and is not limited herein.
  • the function of the counter field (counter information) in the SWUP and the counter information in the LWUP is different.
  • the count field in the SWUP is mainly used to help the wake-up device determine the sleep time of the auxiliary WUR interface of the wake-up device, and in the LWUP.
  • the counter information is mainly used to help the wake-up device determine the verification information and/or authentication information of the LWUP, and to prevent replay attacks.
  • the wake-up device sends a SWUP to the auxiliary WUR interface of the device to be woken up;
  • the wake-up device after the wake-up device generates the SWUP, the wake-up device sends the SWUP to the auxiliary WUR interface of the at least one wake-up device.
  • the device that is woken up determines the sleep time of the auxiliary WUR interface according to the count field in the SWUP.
  • the awake device determines the sleep time of the auxiliary WUR interface according to the count field in the SWUP.
  • the wake-up device determines that the sleep time of the auxiliary WUR interface is adjacent according to the count field in the SWUP.
  • the number, the minimum time interval between two adjacent SWUPs, and the minimum time interval between adjacent SWUPs and LWUPs determine the sleep time of the secondary WUR interface.
  • the sleep time of the auxiliary WUR interface of the wake-up device is calculated by the following formula:
  • S represents the sleep time of the auxiliary WUR interface
  • K represents the number of SWUPs
  • Counter represents the count value of the count field
  • G 1 represents the minimum time interval between two adjacent SWUPs
  • G 2 represents the adjacent SWUP and The minimum time interval between LWUPs.
  • the wake-up device sends one LWUP after every four SWUPs are sent.
  • the four SWUPs sent by the wake-up device are SWUP1, SWUP2, SWUP3, and SWUP4, and SWUP2 falls in the wake-up window of the auxiliary WUR interface of the wake-up device.
  • the device that is woken up determines the working state according to the sleep time of the auxiliary WUR interface.
  • the wake-up device may determine that the auxiliary WUR interface remains in the sleep state during the sleep time, and maintain the auxiliary WUR after the sleep time ends. The interface is awake.
  • the wakeup device generates an LWUP.
  • the LWUP includes a wake-up preamble, and the LWUP further includes identification information or group information of the auxiliary WUR interface, and the LWUP is longer than the SWUP (eg, the LWUP has a longer transmission time than the SWUP and/or takes longer to occupy the air interface).
  • the identifier of the auxiliary WUR interface may be the same as the short WUR identifier of the auxiliary WUR interface, and the identifier of the auxiliary WUR interface may be an identifier information related to the wakeup device, or the auxiliary WUR interface. Address information.
  • the LWUP is used to wake up the main communication interface of the device to be awakened.
  • a possible structure diagram of the LWUP can be seen in FIG. 6 , and details are not described herein again.
  • the wake-up device sends an LWUP to the auxiliary WUR interface of the device to be woken up;
  • the awake device receives the LWUP sent by the awake device through the auxiliary WUR interface.
  • the device that is woken up determines the working state of the auxiliary WUR interface of the device to be awakened according to the LWUP.
  • the awake device needs to check whether the identifier information carried in the received LWUP matches the identifier information of the auxiliary WUR interface of the target awake device, or the awake device needs to detect whether the packet information carried in the received LWUP matches.
  • Packet information of the target wake-up device If the identification information or the packet information does not match, the wake-up device ignores the received LWUP, that is, stops receiving and processing the received LWUP; if the identification information or the packet information matches, the wake-up device It may be necessary to further perform frame correctness check and/or frame authenticity authentication on the received LWUP.
  • the awake device determines the working state of the main communication interface of the awake device according to at least the content of the LWUP, that is, determines Wake up the main communication interface of the wake-up device.
  • the packet information may also be a broadcast address or a multicast address.
  • the waking device first sends the SWUP to the auxiliary WUR interface of the awake device, and then sends the LWUP to the auxiliary WUR interface of the awake device, and wakes up the main communication interface of the awake device through the LWUP. Since the SWUP is shorter than the LWUP (such as the SWUP is shorter than the transmission time of the LWUP and/or the occupied air interface time is short), the technical solution of the present invention replaces a part of the LWUP by the SWUP, and the messages in the existing scheme are all LWUP, obviously, The technical solution of the invention can reduce the occupation time of the message to the air interface during the wake-up operation, thereby improving the air interface efficiency and reducing the interference to other devices.
  • the frame format of the SWUP in this embodiment includes not only the wake-up preamble but also the count field, and the wake-up device can determine the sleep time of the auxiliary WUR interface of the wake-up device according to at least the count field, and the wake-up device can be in the LWUP. Allow the auxiliary WUR interface to sleep before coming to further reduce power consumption.
  • an embodiment of the sending device in the embodiment of the present invention includes:
  • the processing module 401 is configured to generate a first message.
  • the sending module 402 is configured to send, to the first wireless interface of the receiving device, the at least one first message, where the sending time of the at least one of the at least one first message is in a wake-up window of the first wireless interface of the receiving device, the first message Including a wakeup preamble, the first message is used to indicate to the receiving device that the sending device sends the second message to the first wireless interface of the receiving device after sending the first message;
  • the processing module 401 is further configured to generate a second message, where the second message includes a wake-up preamble, the second message further includes identifier information or group information of the first radio interface of the receiving device, where the second message is longer than the first message;
  • the sending module 402 is further configured to send a second message to the first wireless interface of the receiving device, where the second message is used to instruct the receiving device to wake up the second wireless interface of the receiving device.
  • the sending module 401 first sends a first message to the first wireless interface of the receiving device, and then sends a second message to the first wireless interface of the receiving device, and wakes up the second wireless interface of the receiving device by using the second message. Due to The first message is shorter than the second message (eg, the first message is shorter than the second message and/or the occupied time is short), so the technical solution of the present invention replaces a part of the second message by the first message, compared to the current message. The information in the solution is all the second message. Obviously, the technical solution of the present invention can reduce the occupation time of the message to the air interface during the wake-up operation, thereby improving the air interface efficiency and reducing the interference to other devices.
  • the processing module 401 is further configured to acquire a period of a working cycle of the first wireless interface of the receiving device and a length of the awake window.
  • the sending module 402 is further configured to send the number of the first message to the receiving device; the total number of the first message and the second message is greater than or equal to the period of the working cycle. The quotient to wake up the length of the window.
  • the processing module 401 is further configured to acquire a minimum time interval between two adjacent first messages, and the sending module 402 is further configured to send the adjacent two to the receiving device. a minimum time interval between the first messages; and/or, the processing module 401 is further configured to obtain a minimum time interval between the adjacent first message and the second message; the sending module 402 is further configured to receive the device Sending a minimum time interval between the adjacent first message and the second message; and/or, the processing module 401 is further configured to acquire a minimum time interval between the two adjacent second messages; the sending module 402, further A minimum time interval between sending two adjacent second messages to the receiving device.
  • the sending device sets a minimum time interval between two adjacent first messages, a minimum time interval between adjacent first messages and a second message, and two adjacent second messages.
  • the minimum time interval is sent to the receiving device to provide a basis for the receiving device to determine the sleep time of the first wireless interface.
  • the processing module 401 is further configured to determine a sending mode of the first message and the second message, where the sending mode includes periodic sending, and the sending module 402 is further configured to send the sending mode to Receiving device.
  • the sending device needs to notify the receiving device of the sending mode of the first message and the second message, and the receiving device needs to obtain the sending mode in which the sending device sends the first message and the second message, thereby further improving the technical solution of the present application.
  • the first message further includes at least one of the following information: a traditional 802.11 preamble, a frame type, identification information of the sending device, identification information of the receiving device, and a grouping of the receiving device.
  • Information, counter information, frame authentication information, and frame check information the second message further includes at least one of the following: a legacy 802.11 preamble, a frame type, identification information of the transmitting device, counter information, frame authentication information, and frame check.
  • Information; the first wireless interface is an auxiliary wake-up interface, and the second wireless interface is a primary communication interface.
  • the content of the first message and the second message is further enriched in the embodiment, and the first wireless interface and the second wireless interface are specifically described, thereby enriching the technical solution of the present application.
  • the transmitting device in the embodiment of the present invention is described above from the perspective of a modular functional entity. The following describes the transmitting device in the embodiment of the present invention from the perspective of hardware processing. Referring to FIG. 13, the transmitting device in the embodiment of the present invention is described.
  • the memory 501, the processor 502, and the communication module 503 are included.
  • the transmitting device may have more or less components than those shown in FIG. 13, may combine two or more components, or may have different component configurations or settings, and each component may include Hardware, software, or a combination of hardware and software implementations of one or more signal processing and/or application specific integrated circuits.
  • the memory 501 is configured to store an instruction
  • the processor 502 is configured to invoke an instruction stored in the memory 501 to perform the following operations:
  • the second message further includes identification information or group information of the first wireless interface of the receiving device, where the second message is longer than the first message;
  • the communication module 503 is configured to perform the following operations:
  • the first wireless interface of the receiving device Transmitting, by the first wireless interface of the receiving device, the at least one first message, the sending time of the at least one of the at least one first message being in a wake-up window of the first wireless interface of the receiving device, the first message comprising the wake-up preamble, the first The message is used to indicate to the receiving device that the sending device sends the second message to the first wireless interface of the receiving device after sending the first message;
  • the communication module 503 first sends a first message to the first wireless interface of the receiving device, and then sends a second message to the first wireless interface of the receiving device, and wakes up the second wireless interface of the receiving device by using the second message. Since the first message is shorter than the second message (eg, the first message is shorter than the second message and/or the occupied time is short), the technical solution of the present invention replaces a part of the second message by the first message, compared to The information in the existing solution is all the second message. Obviously, the technical solution of the present invention can reduce the time taken by the message to the air interface during the wake-up operation, thereby improving the air interface efficiency and reducing the interference to other devices.
  • the communication module 503 includes a main communication module 5031 and an auxiliary wake-up module 5032, and the auxiliary wake-up module 5031 is configured to send a first message and Second message.
  • the processor 502 is further configured to perform the following operations:
  • the communication module 503 is further configured to perform the following operations:
  • the number of first messages is sent to the receiving device, and the total number of the first message and the second message is greater than or equal to the period of the duty cycle divided by the quotient of the length of the awake window.
  • the processor 502 is further configured to perform the following operations:
  • the communication module 503 is further configured to perform the following operations:
  • the minimum time interval between two adjacent first messages is sent to the receiving device.
  • the processor 502 is further configured to perform the following operations:
  • the communication module 503 is further configured to perform the following operations:
  • the minimum time interval between the adjacent first message and the second message is sent to the receiving device.
  • the processor 502 is further configured to perform the following operations:
  • the communication module 503 is further configured to perform the following operations:
  • the minimum time interval between two adjacent second messages is sent to the receiving device.
  • the processor 502 is further configured to perform the following operations:
  • the communication module 503 is further configured to perform the following operations:
  • an embodiment of the receiving device in the embodiment of the present invention includes:
  • the receiving module 601 is configured to receive, by using the first wireless interface of the receiving device, a first message in the at least one first message sent by the sending device, where the first message includes a wake-up preamble, and the first message is used to indicate to the receiving device that the sending device is After sending the first message, the second message is sent to the first wireless interface of the receiving device;
  • the processing module 602 is configured to determine, according to the first message, an working state of the first wireless interface of the receiving device.
  • the receiving module 601 is further configured to receive, by using the first wireless interface of the receiving device, the second message sent by the sending device, where the second message includes a wake-up preamble, and the second message further includes identifier information or group information of the first wireless interface of the receiving device.
  • the second message is longer than the first message;
  • the processing module 602 is further configured to determine, according to the second message, an operating state of the second wireless interface of the receiving device.
  • the sending device sends the first message to the first wireless interface of the receiving device, and then sends the second message to the first wireless interface of the receiving device, and wakes up the second wireless interface of the receiving device by using the second message. Since the first message is shorter than the second message (eg, the first message is shorter than the second message and/or the occupied time is short), the technical solution of the present invention replaces a part of the second message by the first message, compared to The information in the existing solution is all the second message. Obviously, the technical solution of the present invention can reduce the occupation time of the message to the air interface during the wake-up operation, thereby improving the air interface efficiency and reducing the interference to other devices.
  • the foregoing processing module 602 is specifically configured to determine whether the identifier information in the received second message is different from the identifier information of the first wireless interface of the receiving device. Matching, if it is matched, determining that the working state of the second wireless interface of the receiving device is a wake-up state; if not, determining that the working state of the second wireless interface of the receiving device is a sleep state.
  • the embodiment provides a method for the receiving device to determine the working state of the second wireless interface of the receiving device, thereby improving the technical solution of the present application.
  • the foregoing processing module 602 is specifically configured to determine whether the group information in the received second message matches the group information of the first wireless interface of the receiving device, and if yes, determine The working state of the second wireless interface of the receiving device is a wake-up state; if not, determining that the working state of the second wireless interface of the receiving device is a sleep state.
  • the embodiment provides a method for the receiving device to determine the working state of the second wireless interface of the receiving device, thereby improving the technical solution of the present application.
  • the processing module 602 is further configured to perform authentication on the second message, and if the authentication is passed, determine, according to the second message, an operating state of the second wireless interface of the receiving device; or And the second message is used to check the working status of the second wireless interface of the receiving device according to the second message.
  • the processing module 602 is further configured to acquire a period of a working cycle of the first wireless interface of the receiving device and a length of the awake window.
  • the receiving module 601 is further configured to receive the number of the first message sent by the sending device.
  • the processing module 602 is further configured to determine, according to the number of the first message, a time for receiving the second message by using the first wireless interface of the receiving device.
  • the sending device sends the number of the first message to the receiving device, so as to provide a basis for the receiving device to determine the sleep time of the first wireless interface.
  • the processing module 602 is further configured to acquire a minimum time interval between two adjacent first messages; and/or obtain an adjacent first message and a second message. The minimum time interval between; and/or, the minimum time interval between two adjacent second messages.
  • the sending device may set a minimum time interval between two adjacent first messages, a minimum time interval between adjacent first messages and second messages, and two adjacent second messages.
  • the minimum time interval is sent to the receiving device to provide a basis for the receiving device to determine the sleep time of the first wireless interface.
  • the processing module 602 is specifically configured to: determine to keep the first wireless interface in a awake state after receiving the first message; or determine, according to the first message, the first wireless interface. During the sleep time, the first wireless interface of the receiving device remains in the sleep state during the sleep time, and after the sleep time ends, the first wireless interface of the receiving device is kept in the awake state.
  • the present embodiment provides two methods for determining the working state of the first wireless interface, thereby enriching the technical solution of the present application.
  • the processing module 602 is specifically configured to use If the K is equal to 1, determining, according to the first message, that the sleep time of the first wireless interface is a minimum time interval between the adjacent first message and the second message; if K is greater than 1, determining the first wireless interface according to the first message.
  • the sleep time is: the minimum time interval between two adjacent first messages, and the smaller of the minimum time intervals between adjacent first messages and second messages.
  • the first message includes a count field, and the count field is used to count the first message received by the first radio interface in the K first messages, and the processing module 602 is used by the processing module 602. If the K is greater than 1, the count value according to the count field in the first message, the number of the first message, the minimum time interval between two adjacent first messages, and the adjacent first message and the second The minimum time interval between messages determines the sleep time of the first wireless interface.
  • the sleep time of the first wireless interface of the receiving device is calculated by the following formula:
  • S represents the sleep time of the first wireless interface
  • K represents the number of first messages
  • Counter represents the count value of the count field
  • G 1 represents the minimum time interval between two adjacent first messages
  • G 2 represents A minimum time interval between the adjacent first message and the second message.
  • the receiving module 601 is further configured to receive the sending by the sending device.
  • the transmission mode of a message and a second message, the transmission mode includes periodic transmission.
  • the sending device needs to notify the receiving device of the sending mode of the first message and the second message, and the receiving device needs to obtain the sending mode in which the sending device sends the first message and the second message, thereby further improving the technical solution of the present application.
  • the first message further includes at least one of the following information: a traditional 802.11 preamble, a frame type, identification information of the sending device, identification information of the receiving device, and a grouping of the receiving device.
  • Information, counter information, frame authentication information, and frame check information the second message further includes at least one of the following: a legacy 802.11 preamble, a frame type, identification information of the transmitting device, counter information, frame authentication information, and frame check.
  • Information; the first wireless interface is an auxiliary wake-up interface, and the second wireless interface is a primary communication interface.
  • the content of the first message and the second message is further enriched in the embodiment, and the first wireless interface and the second wireless interface are specifically described, thereby enriching the technical solution of the present application.
  • the receiving device in the embodiment of the present invention is described above from the perspective of a modular functional entity.
  • the receiving device in the embodiment of the present invention is described below from the perspective of hardware processing. Referring to FIG. 16, the receiving device in the embodiment of the present invention is described.
  • the memory 701, the processor 702, the auxiliary wake-up module 703, and the main communication module 704 are included.
  • the receiving device may have more or less components than those shown in FIG. 16, may combine two or more components, or may have different component configurations or settings, and each component may include Hardware, software, or a combination of hardware and software implementations of one or more signal processing and/or application specific integrated circuits.
  • the memory 701 is configured to store an instruction
  • the processor 702 is configured to invoke an instruction stored in the memory 701 to perform the following operations:
  • the auxiliary wake-up module 703 is configured to perform the following operations:
  • the first wireless interface Receiving, by the first wireless interface, a first message in the at least one first message sent by the sending device, where the first message includes a wake-up preamble, the first message is used to indicate to the receiving device that the sending device sends the second message after sending the first message a first wireless interface of the message to the auxiliary wake-up module;
  • the second message further includes identification information or group information of the first wireless interface of the auxiliary wake-up module, where the second message is longer than the first message;
  • the sending device sends the first message to the first wireless interface of the receiving device, and then sends the second message to the first wireless interface of the receiving device, and wakes up the second wireless interface of the receiving device by using the second message. Since the first message is shorter than the second message (eg, the first message is shorter than the second message and/or the occupied time is short), the technical solution of the present invention replaces a part of the second message by the first message, compared to The information in the existing solution is all the second message. Obviously, the technical solution of the present invention can reduce the occupation time of the message to the air interface during the wake-up operation, thereby improving the air interface efficiency and reducing the interference to other devices.
  • the processor 702 is further configured to perform the following operations:
  • the processor 702 is further configured to perform the following operations:
  • the processor 702 is further configured to perform the following operations:
  • the second message is authenticated, and if the authentication is passed, the working state of the second wireless interface of the receiving device is determined according to the second message.
  • the processor 702 is further configured to perform the following operations:
  • the second message is verified. If the verification is passed, the working state of the second wireless interface of the receiving device is determined according to the second message.
  • the processor 702 is further configured to perform the following operations:
  • the period of the duty cycle of the first wireless interface of the auxiliary wake-up module 703 and the length of the wake-up window are obtained.
  • the auxiliary wake-up module 703 is further configured to perform the following operations:
  • the processor 702 is further configured to perform the following operations:
  • the time at which the second message is received by the first wireless interface of the auxiliary wake-up module 703 is determined according to the number of the first messages.
  • the processor 702 is further configured to perform the following operations:
  • the processor 702 is further configured to perform the following operations:
  • the processor 702 is further configured to perform the following operations:
  • the number of the first message is K
  • K is a positive integer greater than or equal to 1
  • the number of the second message is 1. If K is equal to 1, determining that the sleep time of the first wireless interface is adjacent according to the first message.
  • the processor 702 is further configured to perform the following operations:
  • the first message includes a count field, and the count field is used to count the first message received by the first radio interface in the K first messages. If K is greater than 1, the count value according to the count field in the first message, The number of messages, the minimum time interval between two adjacent first messages, and the minimum time interval between adjacent first messages and second messages determine the sleep time of the first wireless interface.
  • the auxiliary wake-up module 703 is further configured to perform the following operations:
  • an embodiment of the present invention further provides a system for waking up a wireless device, the system comprising: a transmitting device 801 and a receiving device 802;
  • the sending device 801 is configured to send, to the first wireless interface of the receiving device, the at least one first message, where the sending time of the at least one of the at least one first message is in a wake-up window of the first wireless interface of the receiving device, the first message
  • the first message is used to indicate to the receiving device that the sending device sends the second message to the first wireless interface of the receiving device after sending the first message, and generates a second message, where the second message includes the wake-up preamble, the second message.
  • the second message is longer than the first message; the second message is sent to the first wireless interface of the receiving device, and the second message is used to indicate that the receiving device wakes up the receiving device.
  • the second wireless interface is longer than the first message; the second message is sent to the first wireless interface of the receiving device, and the second message is used to indicate that the receiving device wakes up the receiving device.
  • the receiving device 1102 is configured to receive, by the first wireless interface of the receiving device, a first Western European love in the at least one first message sent by the sending device, where the first message includes a wake-up preamble, and the first message is used to indicate the sending device to the receiving device.
  • the second message is sent to the first wireless interface of the receiving device; determining, according to the first message, the working status of the first wireless interface of the receiving device; and receiving, by the first wireless interface of the receiving device, the sending
  • the second message includes a wakeup preamble, the second message further includes identifier information or packet information of the first radio interface of the receiving device, the second message is longer than the first message, and the second radio interface of the receiving device is determined according to the second message.
  • the sending device sends the first message to the first wireless interface of the receiving device, and then sends the second message to the first wireless interface of the receiving device, and wakes up the second wireless interface of the receiving device by using the second message. Since the first message is shorter than the second message (eg, the first message is shorter than the second message and/or the occupied time is short), the technical solution of the present invention replaces a part of the second message by the first message, compared to The information in the existing solution is all the second message. Obviously, the technical solution of the present invention can reduce the occupation time of the message to the air interface during the wake-up operation, thereby improving the air interface efficiency and reducing the interference to other devices.
  • the computer program product includes one or more computer instructions.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a storage medium or transferred from one storage medium to another.
  • the computer instructions can be routed from one website site, computer, server or data center to another website site by wire (eg, coaxial cable, twisted pair, fiber optic) or wireless (eg, infrared, wireless, microwave, etc.), Transfer from a computer, server, or data center.
  • the storage medium may be any medium that the computer can store or a data storage device that includes one or more media integrated servers, data centers, and the like.
  • the medium may be a magnetic medium, such as a floppy disk, a hard disk, a magnetic tape, an optical medium such as an optical disk, or a semiconductor medium such as a solid state disk (SSD).
  • SSD solid state disk
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division, and the actual implementation may have another division manner, such as multiple units or groups. Pieces can be combined or integrated into another system.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network devices. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present invention.
  • the related parts of the embodiments of the present invention may be referred to each other, including: the relevant parts of the method embodiments may be referred to each other; the apparatus provided by each device embodiment is used to execute the method provided by the corresponding method embodiment, so each device Embodiments can be understood with reference to relevant portions of the related method embodiments.
  • the device configuration diagrams given in the various device embodiments of the present invention show only a simplified design of the corresponding device.
  • the device may include any number of communication modules, processors, memories, etc., to implement the functions or operations performed by the device in the embodiments of the present invention, and all devices that can implement the present application are Within the scope of protection of the application.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephone Function (AREA)

Abstract

L'invention concerne un procédé de réveil de dispositif sans fil, un dispositif d'envoi, et un dispositif de réception. Le procédé décrit dans les modes de réalisation de la présente invention comprend les étapes suivantes : un dispositif d'envoi envoie au moins un premier message à une première interface sans fil d'un dispositif de réception, l'instant d'envoi d'un ou plusieurs du ou des premiers messages étant dans une fenêtre de réveil de la première interface sans fil du dispositif de réception, et le premier message contenant un préambule de réveil et étant utilisé pour indiquer, au dispositif de réception, que le dispositif d'envoi peut envoyer un second message à la première interface sans fil du dispositif de réception après l'envoi du premier message ; le dispositif d'envoi génère le second message ; le dispositif d'envoi envoie le second message à la première interface sans fil du dispositif de réception, le second message étant utilisé pour commander au dispositif de réception de réveiller une seconde interface sans fil du dispositif de réception.
PCT/CN2017/086680 2016-12-19 2017-05-31 Procédé de réveil de dispositif sans fil, dispositif d'envoi, et dispositif de réception WO2018113192A1 (fr)

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