WO2018145363A1 - Procédé et dispositif servant à mettre en marche un dispositif - Google Patents

Procédé et dispositif servant à mettre en marche un dispositif Download PDF

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Publication number
WO2018145363A1
WO2018145363A1 PCT/CN2017/081855 CN2017081855W WO2018145363A1 WO 2018145363 A1 WO2018145363 A1 WO 2018145363A1 CN 2017081855 W CN2017081855 W CN 2017081855W WO 2018145363 A1 WO2018145363 A1 WO 2018145363A1
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WIPO (PCT)
Prior art keywords
wake
frame
interface
auxiliary
awake
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PCT/CN2017/081855
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English (en)
Chinese (zh)
Inventor
程勇
方平
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华为技术有限公司
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Priority to CN201780074314.8A priority Critical patent/CN110036670B/zh
Publication of WO2018145363A1 publication Critical patent/WO2018145363A1/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, and in particular, to a method and device for waking up a device.
  • Wi-Fi Wireless Fidelity
  • IoT Internet of Things
  • Wi-Fi technology introduces a dormancy mechanism, that is, the Wi-Fi module goes to sleep without data transmission (ie, closes the transmitter).
  • the traditional Wi-Fi sleep mechanism can reduce the power consumption of Wi-Fi.
  • the access point cannot send a message to the device. The access point needs to wait until the device wakes up to send a message to the device, which increases the communication delay and does not achieve on-demand (on- Demand real-time data transmission.
  • the device In order to reduce the communication delay caused by the traditional Wi-Fi sleep mechanism, the device usually follows a certain sleep mode, periodically wakes up to check whether the access point has data to be transmitted to the device, and reduces the sleep time ratio of the device. The energy consumption of the equipment.
  • an ultra-low power Wake-up Radio/Receiver (WUR) module that is, an auxiliary wake-up module
  • the auxiliary wake-up module coexists with the device's primary communication module (eg, 802.11 module).
  • the main communication interface of the device's main communication module enters deep sleep, and the auxiliary wake-up interface of the auxiliary wake-up module is turned on for ultra-low power listening.
  • the wake-up device's auxiliary wake-up interface enables the duty cycle, periodically "wake-sleep", as shown in Figure 1.
  • the wake-up device and the wake-up device do not maintain time synchronization.
  • the wake-up device In the asynchronous mode, the wake-up device cannot accurately know the wake-up window of the wake-up interface of the wake-up device, and cannot ensure that many wake-up devices are awake efficiently, and the air interface of the wake-up device is inefficient.
  • the embodiment of the present application provides a method for waking up a device, which is used to ensure that the awake device can effectively wake up multiple awake devices in the asynchronous mode, which can improve the efficiency of waking up multiple awake devices and further reduce the awake device. Power consumption.
  • a first aspect of the embodiments of the present application provides a method for waking up a device, comprising: waking up a device to determine a wake-up time displacement of at least one awake device, the awake device being a device to be awake by the awake device, each of The wake-up device and the wake-up device each have at least one primary communication interface and at least one secondary wake-up interface; each of each The wake-up time of the wake-up device is shifted to a difference between the first time and the second time respectively associated with each of the devices to be woken, and the second time is that the wake-up device sends the wake-up device to the at least one device that is awake a moment at which the last one of the at least two trigger messages triggers the message, and the first time associated with each of the awake devices is a time at which the awake device is to send a wake-up frame to the at least one awake device;
  • the wake-up device generates the at least two trigger messages, where each trigger message is used to indicate that the wake-up device will send a
  • the awakened device determines, according to the trigger message and the wake-up time displacement, the time that the wake-up interface of the wake-up device receives the wake-up frame according to the trigger message and the wake-up time shift, so that the auxiliary wake-up interface of the wake-up device is in as much sleep as possible.
  • the state and avoiding the auxiliary wake-up interface missing the wake-up frame improves the efficiency of waking up multiple wake-up devices in asynchronous mode and further reducing the power consumption of the wake-up device.
  • the wake-up device includes at least a first device and a second device with different wake-up time shifts.
  • the embodiment of the present application increases the situation that the wake-up time of the two wake-up devices is different, which increases the achievability and integrity of the embodiment of the present application.
  • the device that is to be awake includes at least a first device and a second device that have the same wake-up time displacement belonging to the same multicast group.
  • the embodiment of the present application increases the case where the wake-up time shifts of the two wake-up devices are the same, which increases the achievability and integrity of the embodiment of the present application.
  • the wake-up device determines that the wake-up time of the at least one wake-up device is: the wake-up device is the wake-up device Each wake-up device associated with is assigned a wake-up time shift.
  • the embodiment of the present application provides a specific manner for the wake-up device to determine the wake-up time displacement of the wake-up device, which increases the achievability and operability of the embodiment of the present application.
  • the determining, by the wake-up device, the wake-up time of the at least one awake device includes: the wake-up device calculates according to the preset information. A wake-up time shift is obtained for each of the wake-up devices associated with the wake-up device.
  • the embodiment of the present application provides a specific manner for the wake-up device to determine the wake-up time displacement of the wake-up device, which increases the achievability and operability of the embodiment of the present application.
  • the sending, by the waking device, the at least two trigger messages to the auxiliary wake-up interface of the at least one awake device includes: The wake-up device sends N trigger messages to the auxiliary wake-up interface of the at least one wake-up device within a preset duration T, where the preset duration T is a period of a duty cycle of the auxiliary wake-up interface of the at least one wake-up device
  • the N is an integer greater than or equal to 2, and satisfies N greater than or equal to T/W, the W being the wake window length of the duty cycle of the auxiliary wake-up interface of the at least one wake-up device.
  • the embodiment of the present application provides a specific condition for the wake-up device to send a trigger message, so that the embodiment of the present application is more complete in steps.
  • the method further includes: the wake-up device according to the The second time instant and the wake-up time shift determine a first time instant associated with each of the wake-up devices.
  • the embodiment of the present application adds a process for the wake-up device to determine the time at which the trigger message is sent, and the implementation manner of the embodiment of the present application is added.
  • the wake-up device generates the at least two trigger messages, where each trigger message is used to indicate the wake-up device
  • the sending of the wake-up frame includes: the wake-up device generates a broadcast trigger message including at least the wake-up preamble and the frame type information, where the number of the broadcast trigger messages is at least two, and each of the broadcast trigger messages is used to indicate the The wake-up device will send a wake-up frame; the wake-up device transmits the wake-up frame to an auxiliary wake-up interface of the wake-up device associated with the first time instant at a first time associated with each of the wake-up devices,
  • the wake-up frame is configured to indicate that the wake-up device respectively associated with the first moment wakes up the main communication interface of the wake-up device, including: the wake-up device is at a first moment related to each of the wake-up devices Sending the wake-up frame to an auxiliary wake-up interface of the wake-up device that is respectively associated with
  • Wakeup frame to indicate that the wake-up time associated with the first device to wake the device wakes up the primary communication interface.
  • the embodiment of the present application provides a process for the wake-up device to send a wake-up frame when the trigger message is a broadcast trigger message, and the implementation manner of the embodiment of the present application is added.
  • the wake-up device generates the at least two trigger messages, where each trigger message is used to indicate the wake-up device
  • the sending of the wake-up frame includes: the wake-up device generates a multicast trigger message including at least the wake-up preamble, the frame type information, and the multicast address information, where the number of the multicast trigger messages is at least two, each of the groups
  • the broadcast trigger message is used to indicate that the wake-up device will send the wake-up frame;
  • the wake-up device sends a wake-up device related to the first moment respectively at a first moment related to each of the wake-up devices
  • the auxiliary wake-up interface sends the wake-up frame, where the wake-up frame is used to indicate that the wake-up device associated with the first moment wakes up the main communication interface of the wake-up device, including: the wake-up device is in the The first moment related to the awakened device sends the wake-up frame to the auxiliary wake-up interface of the wake
  • a second aspect of the embodiments of the present application provides a method for waking up a device, including: acquiring, by a wake-up device, a wake-up time displacement of the wake-up device, where the wake-up device is a device that wakes up a device to wake up, the wake-up device And the wake-up device has at least one main communication interface and at least one auxiliary wake-up interface; the wake-up time displacement of the wake-up device is a difference between the first time and the second time, and the second time is the wake-up device a moment when the last one of the at least two trigger messages is sent to the awakened device, the first time being a time when the wake-up device is to send a wake-up frame to the awakened device; the wake-up device Receiving at least two trigger messages sent by the wake-up device, where each trigger message is used to indicate that the wake-up device will send a wake-up frame; and the wake-up device according to the at least two trigger messages and the wake-up time Determin
  • the wake-up device acquires the time of receiving the wake-up frame by the auxiliary wake-up interface of the wake-up device in the asynchronous mode, so that the auxiliary wake-up interface of the wake-up device is in a sleep state as much as possible and avoids the auxiliary wake-up interface from being missed.
  • Wake-up frames improve the efficiency of waking up multiple wake-up devices in asynchronous mode and further reduce the power consumption of the wake-up device.
  • the wake-up device acquires a wake-up time shift of the wake-up device, where the wake-up device receives its associated The wake-up time shift of the wake-up device sent by the wake-up device.
  • the embodiment of the present application provides a process for the wake-up device to receive the determined wake-up time displacement from the wake-up device, which increases the achievability and operability of the embodiment of the present application.
  • the wake-up device acquires a wake-up time displacement of the wake-up device, including: the wake-up device according to a preset
  • the information calculation results in a wake-up time shift of the awakened device.
  • the embodiment of the present application provides a process for the wake-up device to calculate the wake-up time displacement of the wake-up device according to the preset information, which increases the achievability and operability of the embodiment of the present application.
  • the wake-up device receives at least two trigger messages sent by the wake-up device, where each trigger message is used to Instructing the wake-up device to send the wake-up frame includes: the wake-up device receiving at least two broadcast trigger messages sent by the wake-up device, where each broadcast trigger message includes at least wake-up preamble and frame type information, where each a broadcast trigger message is used to indicate that the wake-up device will send a wake-up frame; the wake-up device receives the wake-up frame sent by the wake-up device, and the wake-up frame is used to instruct the wake-up device to wake up the
  • the main communication interface of the wake-up device includes: the wake-up device receives a unicast wake-up frame or a multicast wake-up frame sent by the wake-up device, and the unicast wake-up frame or the multicast wake-up frame is used to wake up the wake-up The primary communication interface of the device.
  • the device that is to be awake receives at least two trigger messages sent by the wake-up device, where each trigger message is used.
  • Instructing the wake-up device to send the wake-up frame includes: the wake-up device receiving at least two multicast trigger messages sent by the wake-up device, where each multicast trigger message includes at least a wake-up preamble, a frame type information, and a group Number information, the multicast trigger message is used to indicate that the wake-up device will send a wake-up frame; the wake-up device receives the wake-up frame sent by the wake-up device, and the wake-up frame is used to wake up the
  • the main communication interface of the awake device includes: the awake device receives a unicast wake-up frame or a multicast wake-up frame sent by the wake-up device, and the unicast wake-up frame or the multicast wake-up frame is used to wake up the Wake up the device's main communication interface.
  • the device that is to be awake determines the device to be woken according to the at least two trigger messages and the wake-up time displacement.
  • the working state of the auxiliary wake-up interface includes: determining, by the wake-up device, a sleep duration of the auxiliary wake-up interface of the wake-up device according to the at least two trigger messages and the wake-up time shift; the wake-up device according to the sleep The duration determines the turn-on time of the auxiliary wake-up interface.
  • the embodiment of the present application provides a specific process for determining, by the awake device, the working state of the auxiliary awake interface of the awake device, which increases the achievability and operability of the embodiment of the present application.
  • the device that is to be awake determines the primary communication interface and/or the auxiliary wake-up interface of the wake-up device according to the wake-up frame.
  • the working state includes: the wake-up device wakes up the main communication interface of the wake-up device according to the wake-up frame, and adjusts the auxiliary wake-up interface of the wake-up device to be in an off state; or the wake-up device according to the The wake-up frame wakes up the main communication interface of the wake-up device, and keeps the auxiliary wake-up interface of the wake-up device in an on state; or the wake-up device keeps the main communication of the wake-up device according to the wake-up frame
  • the module is in an on state, and adjusting the auxiliary wakeup interface of the waked device is in an off state; or the wakeup device keeps the main communication module of the awakened device in a closed state according to the wakeup frame, and adjusting the The auxiliary wake-up interface of the wake-
  • the wake-up device after the wake-up device receives the wake-up frame sent by the wake-up device, the wake-up device is configured according to the Before the wake-up frame determines the working state of the main communication interface and/or the auxiliary wake-up interface of the wake-up device, the method further includes: the wake-up device determines that the wake-up frame is authentic, and the true refers to The wake-up frame is sent by the wake-up device associated with the wake-up device to the wake-up device.
  • the embodiment of the present application provides a process for confirming a wake-up frame by a wake-up device, so that the application is more complete in steps.
  • a third aspect of the embodiments of the present application provides an apparatus, including: an auxiliary wake-up interface, a main communication interface, a processor, a memory, and an antenna module connected through a bus;
  • the auxiliary wake-up interface is configured to receive the wake-up frame and the a trigger message;
  • the main communication interface is configured to send the wake-up frame and the trigger message, and receive a wake-up signal sent by the auxiliary wake-up interface;
  • the processor is configured to execute an instruction for generating a wake-up frame and a trigger message;
  • the memory And an instruction for storing the wake-up frame and the trigger message;
  • the antenna module is configured to receive the wake-up frame and the trigger message, or send the wake-up frame and the trigger message.
  • the auxiliary wake-up interface is a communication interface provided by the auxiliary wake-up module, and the auxiliary wake-up interface is at least one.
  • the main communication interface is a communication interface provided by the main communication module, and the main communication interface is at least one.
  • the processor is specifically configured to invoke the memory storage instruction, by using the auxiliary wake-up interface and the Main communication interface execution The method described in each of the above aspects.
  • a fourth aspect of the present application provides a computer readable storage medium having instructions stored therein that, when executed on a computer, cause the computer to perform the methods described in the above aspects.
  • a fifth aspect of the present application provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the methods described in the various aspects above.
  • the waking device determines a wake-up time displacement of the at least one awake device, where the awake device is a device that the awake device is to wake up, and each of the awake devices has at least one master a communication interface and at least one auxiliary wake-up interface; the wake-up time displacement of each of the wake-up devices is a difference between a first time and a second time respectively associated with each of the wake-up devices, the and each of the The first time that the wake-up device is respectively associated is a time when the wake-up device is to send a wake-up frame to the at least one wake-up device, and the second time is that the wake-up device sends at least the wake-up device to the at least one wake-up device a time at which the last one of the two trigger messages triggers the message; the wake-up device generates the at least two trigger messages, the each trigger message is used to indicate that the wake-up device will send a wake-up frame; Sending, by the auxiliary wake-
  • FIG. 1 is a schematic diagram of a duty cycle of an auxiliary wake-up interface in the present application
  • FIG. 2 is a schematic diagram of a network architecture of the present application.
  • FIG. 3 is a schematic diagram of an embodiment of a method for waking up a device according to an embodiment of the present application
  • FIG. 4 is a schematic diagram of a specific application scenario of a method for waking up a device according to an embodiment of the present disclosure
  • FIG. 5 is a schematic structural diagram of a frame format of a broadcast trigger message according to an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a frame format of a unicast wake-up frame according to an embodiment of the present application
  • FIG. 7 is a schematic structural diagram of a frame format of a multicast wake-up frame according to an embodiment of the present application.
  • FIG. 8 is a schematic diagram of another embodiment of a method for waking up a device according to an embodiment of the present application.
  • FIG. 9 is a schematic diagram of another specific application scenario of a method for waking up a device according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of a frame format of a multicast trigger message according to an embodiment of the present application.
  • Figure 11a is a schematic diagram of an embodiment of a device in an embodiment of the present application.
  • Figure 11b is a schematic diagram of another embodiment of the device in the embodiment of the present application.
  • FIG. 12 is a schematic diagram of another embodiment of a device in an embodiment of the present application.
  • the embodiment of the present application provides a method for waking up a device, which is used to ensure that the awake device can effectively wake up multiple awake devices in the asynchronous mode, improve the air interface efficiency of waking up multiple devices, and further reduce the work of the awake device. Consumption.
  • the main communication module provides a main communication interface
  • the auxiliary wake-up module provides an auxiliary wake-up interface.
  • the first device wake-up device
  • the second device wake-up device
  • the first device first sends a wake-up packet (WUP) to the secondary wake-up interface of the second device.
  • WUP wake-up packet
  • the secondary wake-up interface of the second device checks the receiving address (Receive Address, RA) of the wake-up frame and confirms the correctness and authenticity of the wake-up frame.
  • the secondary wake-up interface of the second device sends a wake-up signal to the primary communication interface of the second device, Wake up the primary communication interface of the second device.
  • the trigger message sent by the awake device may be a broadcast trigger message or a multicast trigger message.
  • the embodiment of the present application One embodiment of a method of waking up a device includes:
  • the wake-up device determines a wake-up time shift of the at least one wake-up device.
  • the wake-up device determines a wake-up time shift of the at least one wake-up device, the wake-up device is a device to be woken up by the wake-up device, each wake-up device and the wake-up device having at least one primary communication interface and at least one auxiliary wake-up interface.
  • the wake-up time of each awake device is the difference between the first moment and the second moment respectively associated with each awake device, and the first moment associated with each awake device is a wake-up device.
  • the moment when the wake-up frame is to be sent to the at least one awake device, the second time is the time at which the wake-up device sends the last one of the at least two broadcast trigger messages to the at least one awake device.
  • the wake-up device can determine the wake-up time displacement of the wake-up device in multiple manners.
  • Mode 1 After the wake-up device acquires the specific number of the wake-up devices or the wake-up device is in the association process, each wake-up device is assigned a wake-up time shift. It may be randomly assigned or allocated according to preset rules.
  • Mode 2 The wake-up device calculates the wake-up time displacement of each wake-up device according to the preset information.
  • the preset information is information common to the wake-up device and the wake-up device.
  • the preset information may be a Media Access Control Address (MAC Address), and the MAC address is 48 bits; the preset information may also be an Association Identifier (AID), and the length is 16 bits.
  • MAC Address Media Access Control Address
  • AID Association Identifier
  • the number of the devices to be awakened may be one, or two, three, four or five, and may be other devices that are awakened, which is not limited herein.
  • the wake-up time shift of each wake-up device may be the same or different, and multiple wake-up devices with the same wake-up time shift may form a multicast group (Group -cast group).
  • the wake-up time shift of each wake-up device may be the same or different.
  • the awake device includes the awake device 1 to the awake device 5, that is, the awake device includes the first device to the fifth device.
  • the device to be awakened includes a first device to a fifth device, and the wake-up time displacement of the fourth device is the same as the wake-up time of the fifth device, and the wake-up time displacement of the first device is different from the wake-up time of the second device.
  • the wake-up time shift of the device is different from the wake-up time shift of the third device.
  • the wake-up device acquires a wake-up time displacement of the wake-up device.
  • the wake-up device acquires the wake-up time displacement of the wake-up device, which is the device that the wake-up device is about to wake up, the wake-up device having at least one primary communication interface and at least one auxiliary wake-up interface.
  • the wake-up time of the wake-up device is the difference between the first time and the second time.
  • the first time is the time when the wake-up device will send the wake-up frame to the wake-up device
  • the second time is the wake-up device is awakened. The moment when the device sends the last one of the at least two broadcast trigger messages.
  • the wake-up device can determine the wake-up time displacement of the wake-up device in multiple ways.
  • Mode 1 The wake-up device receives the allocated wake-up time shift sent by the wake-up device;
  • Mode 2 The wake-up device calculates the wake-up according to the preset information.
  • the wake-up time of the device is shifted.
  • the preset information is information shared by the wake-up device and the wake-up device.
  • the preset information may be a MAC Address, and the MAC address is 48 bits; the preset information may also be an associated identifier. A length of 16 bits, or a partial associated identifier, a length of 9 bits, or a hashed partial associated identifier.
  • the first device to the fifth device respectively acquire respective wake-up time shifts, and the first device to the fifth device each have at least one main communication interface and at least one auxiliary wake-up interface.
  • the first time of the first device is different from the first time of the second device, and the first time of the fourth device is the same as the first time of the fifth device, and there are multiple combinations and combinations according to the actual situation, which is not limited herein.
  • the wake-up device generates at least two broadcast trigger messages.
  • the wake-up device generates at least two broadcast trigger messages, each of which is used to indicate that the wake-up device will send the wake-up frame.
  • the broadcast trigger message is an auxiliary wake-up interface frame
  • the receiving object is an auxiliary wake-up interface of the wake-up device.
  • Each broadcast trigger message includes at least a wakeup preamble and a frame type information.
  • the wakeup preamble may further include a Start Frame Delimiter (SFD).
  • SFD Start Frame Delimiter
  • the frame type information may be part of a wakeup preamble, ie the wakeup preamble may further include frame type information.
  • the frame format of the broadcast trigger message may further include a legacy 802.11 preamble, an index information, a broadcast address, a Transmit address, and a basic service set information.
  • a basic service set information One or more of (Basic Service Set information, BSS Info), counter information (Counter), Frame Integrity Code (MIC), and Frame Check Sequence (FCS).
  • the basic service set information may be a basic service with the wake-up device and the wake-up device.
  • the information related to the set identifier may be, for example, a Basic Service Set Identifier (BSSID) having a length of 48 bits; or a hashed Basic Service Set Identifier (Hashed BSSID).
  • the length may be 16 bits; or the basic service set color (BSS color) may be 6 bits in length; or may be the media access control address (MAC Address) of the wake-up device. ) or a hashed media access address (Hashed Media Access Control Address, Hased MAC Address) or a partial media access control address (Partial Media Access Control Address, Partial MAC Address).
  • the purpose of hashing the media access address may be to shorten the MAC address and reduce the number of transmitted bits, for example, 16 bits from 48 bits; or to hide the real MAC address, for security and privacy reasons .
  • the frame format of the broadcast trigger message is as shown in FIG. 5.
  • the broadcast address may include basic service set information, that is, the basic service set information may be part of the broadcast address.
  • the frame format of the broadcast trigger message includes a Transmit Address
  • the transmission address may include basic service set information, that is, the basic service set information may be part of the transmission address.
  • the broadcast trigger message includes frame authentication information (MIC)
  • the broadcast trigger message also includes counter information (Counter)
  • the frame authentication information is generated according to the content of the broadcast trigger message, the counter information, and the key;
  • the authentication information is used to help the receiving device to authenticate the authenticity of the broadcast trigger message, and can prevent the attacker from sending a fake broadcast trigger message to interfere with the asynchronous wake-up operation of the wake-up device.
  • the frame format of the broadcast trigger message includes frame check information
  • the frame check information may be used to help the receiving device verify the correctness of the received broadcast trigger message.
  • the wake-up device sends at least two broadcast trigger messages to the auxiliary wake-up interface of the at least one wake-up device.
  • the wake-up device transmits the generated at least two broadcast trigger messages to the auxiliary wake-up interface of the at least one wake-up device.
  • the wake-up device does not know the location of the wake-up window of the wake-up interface of each wake-up device.
  • the wake-up device needs to send at least two broadcast trigger messages, and it is expected that at least one of the broadcast trigger messages will be received by the wake-up device's auxiliary wake-up interface.
  • each broadcast trigger message is used to indicate that the wake-up device needs to wake up at least one wake-up device, that is, the wake-up device sends a wake-up frame to at least one of the wake-up devices
  • the wake-up frame may be a unicast wake-up frame or a multicast wake-up. frame.
  • the wake-up frame is a unicast wake-up frame
  • the unicast wake-up frame can wake up a wake-up device
  • the wake-up frame is a multicast wake-up frame
  • the multicast wake-up frame can wake up multiple wake-up devices belonging to the same multicast group.
  • the times at which the plurality of awakened devices that receive the multicast wake-up frame expect to receive the wake-up frame are the same.
  • the wake-up device needs to send a series of broadcast trigger messages in time T, which is the duty-cycling of the wake-up device's auxiliary wake-up interface.
  • T is the duty-cycling of the wake-up device's auxiliary wake-up interface.
  • the period is that the number of broadcast trigger messages included in the series of broadcast trigger messages is N, and N is greater than or equal to T/W, and N is an integer greater than or equal to 2.
  • W is the length of the wake-up window of the work cycle of the wake-up device's auxiliary wake-up interface. If the lengths of the wake-up windows of a plurality of different wake-up devices are different, then W is the smallest wake-up window in the wake-up window of all the wake-up devices.
  • the wake-up device in this embodiment includes a first device to a fifth device, where W is the length of the smallest wake-up window in the wake-up window of the first device to the wake-up window of the fifth device.
  • T is the maximum period of the duty cycle of the auxiliary wake-up interface of the first device to the work cycle of the auxiliary wake-up interface of the fifth device.
  • the wake-up device receives at least two broadcast trigger messages sent by the wake-up device.
  • the wake-up device receives at least two broadcast trigger messages sent by the wake-up device, and each broadcast trigger message is used to indicate that the wake-up device will send the wake-up frame.
  • the wake-up device receives the broadcast trigger message sent by the wake-up device through the auxiliary wake-up interface provided by the auxiliary wake-up module.
  • the awakened device determines, according to at least the frame type information (Frame Type) in the received message, whether the received message is a broadcast trigger message.
  • the operations that the wake-up device needs to perform may include:
  • the wake-up device may determine whether the basic service set information carried in the broadcast trigger message matches the basic service set where the wake-up device is located; if not, the device wakes up The device ignores the broadcast trigger message, for example, the wake-up device stops receiving and processing the broadcast trigger message. If it matches, perform other processing steps.
  • the basic service set information carried in the broadcast trigger message may be part of a broadcast address or a broadcast address or as part of a send address.
  • the awake device may authenticate the authenticity of the received broadcast trigger message according to the frame authentication information, that is, whether the broadcast trigger message is from a legally associated wake-up device.
  • the wake-up device may determine, according to the frame check information, whether the received broadcast trigger message is correct, that is, check whether the broadcast trigger message is in error during transmission.
  • the awakened device determines an working state of the auxiliary wake-up interface of the wake-up device according to the at least two broadcast trigger messages and the wake-up time shift.
  • the wake-up device determines the working state of the auxiliary wake-up interface of the wake-up device according to the received at least two broadcast trigger messages and the wake-up time shift.
  • the The wake-up device may determine the working state of the auxiliary wake-up interface of the wake-up device based at least on the content of the received broadcast trigger message.
  • the awake device includes a first device to a fifth device. Determining, by the first device, the sleep duration of the auxiliary wake-up interface of the first device according to the content of the received broadcast trigger message and the wake-up time displacement; the first device causes the auxiliary wake-up interface of the first device to enter the sleep at least according to the sleep duration 1 State, and wake up the auxiliary wake-up interface to wait for the wake-up frame after the sleep duration ends, and the wake-up frame may be a unicast wake-up frame or a multicast wake-up frame. If the at least two broadcast trigger messages include index information, the awake device acquires index information from at least two broadcast trigger messages, the index information indicating the number K of broadcast trigger messages to be transmitted remaining.
  • the first device needs to obtain the minimum time interval M between the two adjacent broadcast trigger messages sent by the wake-up device.
  • the minimum time interval M can be determined by the wake-up device and sent to the first device.
  • the steps performed by the second device to the fifth device are the same as those performed by the first device, and are not described herein again.
  • the device can determine that the sleep duration of the auxiliary wake-up interface is S, and S is the wake-up time shift of the wake-up device.
  • the method of determining the sleep duration of the wake-up interface of the wake-up device can also be used to determine the time at which the wake-up interface of the wake-up device desires to receive the wake-up frame.
  • the sleep duration of the auxiliary wake-up interface is the time at which the auxiliary wake-up interface expects to receive the wake-up frame.
  • the wake-up device generates at least one wake-up frame.
  • the wake-up device generates at least one wake-up frame, and the at least one wake-up frame is used to wake up the primary communication interface of the at least one wake-up device, and the wake-up frame may be a unicast wake-up frame or a multicast wake-up frame.
  • the frame format of the unicast wake-up frame may be as shown in FIG. 6, and the unicast wake-up frame includes at least a wake-up preamble and a frame type information (Frame Type). ) and Receive Address (Receive Address).
  • the wakeup preamble may further include a Start Frame Delimiter (SFD).
  • SFD Start Frame Delimiter
  • the frame type information may be part of a wakeup preamble, ie the wakeup preamble may further include frame type information.
  • the Receive Address is a unicast address, and the unicast address may be information related to the identifier of the wake-up device's auxiliary wake-up interface, for example, Wake-up Radio/Receiver Identifier (WUR ID). Wake-up Radio/Receiver Address (WUR Address); or information related to media access control of the device being woken up, for example, MAC Address, Hashed MAC Address, or Partial MAC Address.
  • WUR ID Wake-up Radio/Receiver Identifier
  • WUR Address Wake-up Radio/Receiver Address
  • MAC Address MAC Address
  • Hashed MAC Address Hashed MAC Address
  • Partial MAC Address Partial MAC Address
  • the unicast wakeup frame may further include a legacy 802.11 Preamble, a Transmit Address, a Basic Service Set information (BSS Info), a Control Info, and a counter information. Counter), one or more of Frame Integrity Code (MIC) and Frame Check Sequence (FCS).
  • the basic service set information (BSS Info) may be information related to the identifier of the basic service set where the wake-up device and the wake-up device are located, for example, may be a BSSID or a Hashed BSSID, or may be a BSS color, or may be a wake-up device.
  • MAC Address or Hashed MAC Address may be information related to the identifier of the basic service set where the wake-up device and the wake-up device are located, for example, may be a BSSID or a Hashed BSSID, or may be a BSS color, or may be a wake-up device.
  • the frame format of the multicast wake-up frame may be as shown in FIG. 7.
  • the multicast wake-up frame includes at least a wake-up preamble and a frame type information (Frame Type). ) and the multicast address (Group-cast Address).
  • the wakeup preamble may further include frame starter information.
  • the frame type information may be part of a wakeup preamble, ie the wakeup preamble may further include frame type information.
  • the multicast address may be a group ID information, or the multicast address may include group number information.
  • the multicast address may also be a combination of multiple unicast addresses, that is, the multicast address may include multiple unicast addresses, and the unicast address may be information related to the identifier of the auxiliary wake-up interface of the wake-up device. For example, WUR ID, WUR Address; or information related to the MAC address of the target device being woken up, for example, MAC Address, Hashed MAC Address, or Partial MAC Address.
  • the multicast wake-up frame may further include a legacy 802.11 Preamble, a Transmit Address, a BSS Info, a Control Info, a Counter, and a frame authentication information.
  • a legacy 802.11 Preamble a Transmit Address
  • BSS Info a BSS Info
  • Control Info a Control Info
  • Counter a frame authentication information
  • FCS Frame Check Information
  • the basic service set information (BSS Info) may be information related to the identifier of the basic service set where the wake-up device and the wake-up device are located, for example, may be a BSSID or a Hashed BSSID, or may be a BSS color, or may be a wake-up device.
  • MAC Address or Hashed MAC Address If the wake-up device wakes up two or more wake-up devices using multicast mode, the wake-up device needs to group the wake-up devices in advance and divide the associated wake-up devices into multiple multicast groups.
  • the wake-up device determines a time at which the wake-up frame is sent according to the wake-up time shift.
  • the wake-up device determines a first time to transmit a wake-up frame associated with each of the devices being woken up based on the determined wake-up time shift and the second time of each of the wake-up devices.
  • the wake-up frame can be sent.
  • the moment when the wake-up frame is sent is the time at which the wake-up device expects to be able to send the wake-up frame.
  • the exact moment when the wake-up device sends the wake-up frame is random, and the randomness is caused by the wake-up device competing for the channel.
  • the exact moment at which the wake-up device actually sends the wake-up frame is the time at which the wake-up frame is expected to be transmitted, or later than the time at which the wake-up frame is expected to be transmitted (ie, the time to contend for the channel is increased).
  • the wake-up time shift is determined based on the time at which the desired wake-up device sends the wake-up frame.
  • step 308 is after step 306, before step 309, there is no necessary sequence between step 308 and step 307.
  • Step 308 may be performed before step 307, or after step 307, or step 308 and step 307, which are not limited herein.
  • the wake-up device sends a wake-up frame to the auxiliary wake-up interface of the associated wake-up device at a first moment related to each wake-up device.
  • the wake-up device sends a wake-up frame to the auxiliary wake-up interface of each of the wake-up devices associated with the first moment at a first moment associated with each of the wake-up devices, the wake-up frame being used to indicate that the wake-up device associated with the first moment wakes up Main communication interface.
  • the waking device may send a unicast wake-up frame to the awake device according to the determined moment of sending the wake-up frame, and sequentially wake up the plurality of awake devices, as shown in FIG. 4 .
  • the wake-up device can also send a multicast wake-up frame to wake up the plurality of wake-up devices.
  • the fourth device and the fifth device have the same unicast wakeup time offset and can form a multicast group.
  • the multicast wake-up frame may carry the identification information of the auxiliary wake-up interface of two or more wake-up devices; or, if two or more wake-up devices are used as a multicast group, the multicast wake-up frame It can carry the identification information of the multicast group (that is, the Group ID).
  • the wake-up device may only send a unicast wake-up frame; or, the wake-up device may first send a unicast wake-up frame and then send a multicast wake-up frame; or, the wake-up device may first send a multicast wake-up frame, and then send a unicast wake-up frame, specifically No restrictions are imposed.
  • the unicast wake-up frame is different from the receiving device of the multicast wake-up frame.
  • the device that is woken up receives the wake-up frame sent by the wake-up device.
  • the wake-up device receives a wake-up frame sent by the wake-up device, and the wake-up frame is used to wake up the main communication interface of the wake-up device.
  • the wake-up device Since the exact moment when the wake-up device sends the wake-up frame is random (randomness is due to the contention channel), it may take some time for the wake-up device to wait for a period of time to receive the wake-up frame after waking up. Further, in order to prevent the wake-up device from missing the wake-up frame, the wake-up device's auxiliary wake-up interface needs to wake up a certain time in advance to wait for the wake-up frame to be received.
  • the wake-up time of the wake-up device of the wake-up device and the time to wait for receiving the wake-up frame may be determined by a specific device internal implementation, which may not be limited herein.
  • the wake-up device receives the wake-up frame through the auxiliary wake-up interface, and the wake-up frame may be a unicast wake-up frame. Or multicast wake-up frame. If the wakeup frame is a unicast wakeup frame, the awake device needs to check whether the received address carried in the unicast wakeup frame matches the identifier of the local auxiliary wakeup interface; if not, the awake device can ignore the unicast wakeup A frame, for example, the first device (or one or more of the second device to the fifth device) stops receiving and processing the unicast wake frame.
  • the device to be awakened needs to determine whether the multicast address carried in the multicast wake-up frame matches the identifier of the local multicast group, or the wake-up device needs to determine the carried in the multicast wake-up frame. Whether the multicast address includes the identification information of the local auxiliary wake-up interface; if the identifier information of the local auxiliary wake-up interface is not matched or not included, the wake-up device may ignore the multicast wake-up frame, for example, stop receiving and processing the multicast. Wake up the frame.
  • the operation that the wake-up device may perform may further include:
  • the wake-up device may determine whether the basic service set information carried in the wake-up frame matches the basic service set where the wake-up device is located; if not, the wake-up device will The wake-up frame is ignored, for example, the wake-up device stops receiving and processing the wake-up frame.
  • the basic service set information carried in the wake-up frame may be part of the receiving address or the multicast address or as part of the sending address.
  • the wake-up device may authenticate the authenticity of the received wake-up frame according to at least the frame authentication information, that is, whether the wake-up frame is from a legally associated wake-up device.
  • the wake-up device may determine, according to the frame check information, whether the received wake-up frame is correct, that is, check whether the wake-up frame is in error during transmission.
  • the awakened device determines, according to the wake-up frame, an active state of the wake-up device's primary communication interface and/or the auxiliary wake-up interface.
  • the wake-up device determines the operational status of the wake-up device's primary communication interface and/or the auxiliary wake-up interface based on the wake-up frame.
  • the wake-up device After the wake-up device receives a real and correct unicast wake-up frame or multicast wake-up frame associated with itself, the wake-up device determines the local primary communication interface and/or according to at least the content of the received wake-up frame. Or the working state of the auxiliary wake-up interface.
  • the specific determination method is as follows:
  • the wake-up device wakes up the main communication interface of the wake-up device according to the wake-up frame, and adjusts the auxiliary wake-up interface of the wake-up device to be in an off state; or, the wake-up device wakes up the main communication interface of the wake-up device according to the wake-up frame, and keeps the wake-up device
  • the auxiliary wake-up interface is in an on state; or, the wake-up device keeps the main communication module of the wake-up device in an on state according to the wake-up frame, and adjusts the auxiliary wake-up interface of the wake-up device to be in an off state or the wake-up device remains according to the wake-up frame.
  • the main communication module of the wake-up device is turned off, and the auxiliary wake-up interface of the wake-up device is adjusted to be in an off state.
  • the wake-up device determines, according to the broadcast trigger message and the wake-up time displacement, the time that the wake-up interface of the wake-up device receives the wake-up frame, so that the auxiliary wake-up interface of the wake-up device is as much as possible.
  • the state and avoiding the auxiliary wake-up interface missing the wake-up frame improves the air interface efficiency when waking up multiple devices in asynchronous mode and further reduces the power consumption of the wake-up device.
  • another embodiment of the method for waking up the device in the embodiment of the present application includes:
  • the wake-up device determines a wake-up time shift of the at least one wake-up device.
  • the wake-up device determines the wake-up time displacement of the wake-up device according to the multicast group to which the wake-up device belongs, and the wake-up device is a device that the wake-up device is to wake up, and each wake-up device and the wake-up device have at least one primary communication interface and at least An auxiliary wakeup interface.
  • the wake-up time of each awake device is the difference between the first moment and the second moment respectively associated with each awake device, and the first moment associated with each awake device is a wake-up device.
  • the moment when the wake-up frame is to be sent to the at least one awake device, and the second time is the moment when the wake-up device sends the last one of the at least two multicast trigger messages to the at least one awake device.
  • the wake-up device can determine the wake-up time displacement of the wake-up device in multiple ways.
  • Mode 1 After the wake-up device obtains the multicast group to which each wake-up device belongs, or in the association process, allocates each multicast group associated with it.
  • a multicast wake-up time shift can be randomly assigned or allocated according to preset rules.
  • Mode 2 The wake-up device calculates the multicast wake-up time displacement of each multicast group according to the preset information.
  • the preset information is The information shared by the wake-up device and the wake-up device, for example, the preset information may be a Group Identifier (Group ID) or a Hashed Group Identifier (Hashed Group ID).
  • each multicast group there are at least one multicast group, and the number of devices to be woken up in each multicast group is at least two, three, four, or five, and other numbers of devices that are woken up. , specifically here is not limited.
  • the unicast wakeup time of each wake-up device in the multicast group is the same, and the multicast wake-up time of different multicast groups is different.
  • the multicast group includes the device 1 to be woken up to be awakened by the device 5, that is, is awakened.
  • the device includes first to fifth devices.
  • one multicast group of the awakened device includes the first device to the fifth device, and the unicast wake time shift of the first device to the fifth device is the same.
  • the wake-up device acquires a wake-up time shift of the wake-up device.
  • the wake-up device acquires the wake-up time displacement of the wake-up device, which is the device that the wake-up device is about to wake up, the wake-up device having at least one primary communication interface and at least one auxiliary wake-up interface.
  • the wake-up time of the wake-up device is the difference between the first time and the second time
  • the first time is a time when the wake-up device sends a wake-up frame to the multicast group to which the device to be awakened belongs
  • the second time is The moment when the wake-up device sends the last multicast trigger message in at least two multicast trigger messages to the multicast group to which the wake-up device belongs.
  • the wake-up device can determine the wake-up time displacement of the wake-up device in multiple manners.
  • Mode 1 The wake-up device receives the allocated multicast wake-up time offset sent by the wake-up device;
  • Mode 2 The wake-up device calculates according to the preset information.
  • the multicast wake-up time of the wake-up device is shifted.
  • the preset information is information common to the wake-up device and the wake-up device.
  • the preset information may be a Group Identifier (Group ID) or a hashed group. Hashed Group Identifier (Hashed Group ID).
  • the first device to the fifth device respectively acquire respective wake-up time shifts, and the first device to the fifth device each have at least one main communication interface and at least one auxiliary wake-up interface.
  • First moment of the first device The first moments to the fifth device are the same, that is, the times at which the first device to the fifth device in the same multicast group expect to receive the wake-up frame are the same.
  • the wake-up device generates at least two multicast trigger messages.
  • the wake-up device generates at least two multicast trigger messages, and each multicast trigger message is used to indicate that the wake-up device will send the wake-up frame.
  • the multicast trigger message is an auxiliary wake-up interface frame, and the receiving object is an auxiliary wake-up interface of the wake-up device.
  • Each multicast trigger message includes at least a wake-up preamble, a frame type information, and a group-cast address.
  • the wakeup preamble may further include a Start Frame Delimiter (SFD).
  • SFD Start Frame Delimiter
  • the frame type information may be part of a wakeup preamble, ie the wakeup preamble may further include frame type information.
  • the multicast address information (Group-cast address) can be a multicast address, that is, the address information of a multicast group; or the identification information of a multicast group, for example, a multicast group number (Group ID); or multiple assistants.
  • the combination of the wake-up interface address may include multiple auxiliary wake-up interface addresses, and the auxiliary wake-up interface address may be Wake-up Radio/Receiver Identifier (WUR ID) or related to the device being woken up.
  • WUR ID Wake-up Radio/Receiver Identifier
  • Identification information such as MAC Address, or Hashed MAC Address.
  • the frame format of the multicast trigger message may further include a legacy 802.11 preamble, an index information, a Transmit Address, and a basic service set information.
  • a basic service set information One or more of BSS Info), Counter Information, Message Integrity Code (MIC), and Frame Check Sequence (FCS).
  • the basic service set information may be information related to the identifier of the basic service set where the wake-up device and the wake-up device are located, for example, may be a Basic Service Set Identifier (BSSID) or a basic service set of the hash.
  • BSSID Basic Service Set Identifier
  • the identifier (Hashed Basic Service Set Identifier, Hashed BSSID), or the Basic Service Set color (BSS color), or may also be the MAC Address, Hashed MAC Address, or Partial MAC Address of the wake-up device.
  • the frame format of the multicast trigger message is as shown in FIG.
  • a group-cast address may include basic service set information, that is, the basic service set information may be part of a multicast address.
  • the frame format of the multicast trigger message includes frame authentication information (MIC)
  • the multicast trigger message also includes counter information (Counter)
  • the frame authentication information is generated according to the content of the multicast trigger message, the counter information, and the key.
  • the frame authentication information is used to help the receiving device to authenticate the authenticity of the multicast trigger message, and can prevent the attacker from sending a fake multicast trigger message to interfere with the asynchronous wake-up operation of the wake-up device.
  • the frame format of the multicast trigger message includes frame check information
  • the frame check information may be used to help the receiving device verify the correctness of the received multicast trigger message.
  • the wake-up device sends at least two multicast trigger messages to the auxiliary wake-up interface of the at least one wake-up device.
  • the wake-up device sends the generated at least two multicast trigger messages to the auxiliary wake-up interface of the at least one wake-up device.
  • the wake-up device does not know the location of the wake-up window of the wake-up interface of each wake-up device.
  • the wake-up device needs to send at least two multicast trigger messages, and it is expected that at least one of the multicast trigger messages will be received by the wake-up device of the wake-up device.
  • the wake-up device needs to send a series of multicast trigger messages in time T, and the time T is the duty cycle of the wake-up device's auxiliary wake-up interface (duty-cycling) Period, the number of multicast trigger messages included in the series of multicast trigger messages is N, and is full
  • the foot N is greater than or equal to T/W, and N is an integer greater than or equal to 2.
  • W is the length of the wake-up window of the work cycle of the wake-up device's auxiliary wake-up interface. If the lengths of the wake-up windows of a plurality of different wake-up devices are different, then W is the smallest wake-up window in the wake-up window of all the wake-up devices.
  • the awake device in this embodiment includes a first device to a fifth device, where W is the length of the smallest awake window in the awake window of the first device to the awake window of the fifth device.
  • T is the maximum period of the duty cycle of the auxiliary wake-up interface of the first device to the work cycle of the auxiliary wake-up interface of the fifth device.
  • the wake-up device receives at least two multicast trigger messages sent by the wake-up device.
  • the wake-up device receives at least two multicast trigger messages sent by the wake-up device, and each multicast trigger message is used to indicate that the wake-up device will send the wake-up frame.
  • the wake-up device receives the multicast trigger message sent by the wake-up device through the auxiliary wake-up interface provided by the auxiliary wake-up module.
  • the awakened device determines, according to at least the frame type information (Frame Type) in the received message, whether the received message is a multicast trigger message.
  • the operations that the wake-up device needs to perform may include:
  • the awake device can determine whether the basic service set information carried in the multicast trigger message matches the basic service set where the awake device is located; if not, The awakened device ignores the multicast trigger message, for example, the wake-up device stops receiving and processing the multicast trigger message. If it matches, perform other processing steps.
  • the basic service set information carried in the multicast trigger message may be part of the multicast address or part of the sending address.
  • the awake device can authenticate the authenticity of the received multicast trigger message according to the frame authentication information, that is, whether the multicast trigger message is from a legal association. Wake up the device.
  • the wake-up device may determine, according to the frame check information, whether the received multicast trigger message is correct, that is, check the multicast trigger message during the transmission process. Is it wrong?
  • the awakened device determines an working state of the auxiliary wake-up interface of the wake-up device according to the at least two multicast trigger messages and the wake-up time offset.
  • the wake-up device determines the working state of the auxiliary wake-up interface of the wake-up device according to the received at least two multicast trigger messages and the wake-up time offset.
  • the awakened device may determine the working state of the auxiliary wake-up interface of the wake-up device based at least on the content of the received multicast trigger message.
  • the awakened device includes at least a first device to a second device.
  • the awake device includes a first device to a fifth device. Determining, by the first device, the sleep duration of the auxiliary wake-up interface of the first device according to the content of the received multicast trigger message and the wake-up time displacement; the first device first enters the auxiliary wake-up interface of the first device according to the sleep duration 1
  • the sleep state, and wake up the wake-up interface waiting for the wake-up frame after the sleep duration ends, the wake-up frame may be a unicast wake-up frame or a multicast wake-up frame. If at least two multicast trigger messages include index information, the awake device obtains from at least two multicast trigger messages. Information indicating that the number K of multicast trigger messages to be sent remains.
  • the first device needs to obtain the minimum time interval M between the two adjacent multicast trigger messages sent by the wake-up device.
  • the minimum time interval M can be determined by the wake-up device and sent to the first device. .
  • the steps performed by the second device to the fifth device are the same as those performed by the first device, and are not described herein again. If at least two multicast trigger messages do not include index information, the awake device may determine that the sleep duration of the auxiliary wake-up interface is S, and S is the wake-up time shift of the wake-up device.
  • the method of determining the sleep duration of the wake-up interface of the wake-up device can also be used to determine the time at which the wake-up interface of the wake-up device desires to receive the wake-up frame.
  • the sleep duration of the auxiliary wake-up interface is the time at which the auxiliary wake-up interface expects to receive the wake-up frame.
  • the wake-up device generates at least one wake-up frame.
  • the wake-up device generates at least one wake-up frame, and the at least one wake-up frame is used to wake up the primary communication interface of the at least one wake-up device, and the wake-up frame may be a multicast wake-up frame. If the wake-up device wakes up multiple wake-up devices using multicast mode, the wake-up device needs to group the wake-up devices in advance.
  • the frame format of the unicast wake-up frame may be as shown in FIG. 6, and the unicast wake-up frame includes at least a wake-up preamble and a frame type information (Frame Type). ) and Receive Address (Receive Address).
  • the wakeup preamble may further include a Start Frame Delimiter (SFD).
  • SFD Start Frame Delimiter
  • the frame type information may be part of a wakeup preamble, ie the wakeup preamble may further include frame type information.
  • the Receive Address is a unicast address
  • the unicast address may be information related to the identifier of the wake-up device's auxiliary wake-up interface, for example, WUR ID, or WUR Address; or media access with the device being woken up.
  • Control related information such as MAC Address, Hashed MAC Address, or Partial MAC Address.
  • the unicast wakeup frame may further include a legacy 802.11 Preamble, a Transmit Address, a Basic Service Set information (BSS Info), a Control Info, and a counter information. Counter), one or more of Frame Integrity Code (MIC) and Frame Check Sequence (FCS).
  • the basic service set information (BSS Info) may be information related to the identifier of the basic service set where the wake-up device and the wake-up device are located, for example, may be a BSSID or a Hashed BSSID, or may be a BSS color, or may be a wake-up device.
  • MAC Address or Hashed MAC Address may be information related to the identifier of the basic service set where the wake-up device and the wake-up device are located, for example, may be a BSSID or a Hashed BSSID, or may be a BSS color, or may be a wake-up device.
  • the frame format of the multicast wake-up frame may be as shown in FIG. 7.
  • the multicast wake-up frame includes at least a wake-up preamble and a frame type information (Frame Type). ) and the multicast address (Group-cast Address).
  • the wakeup preamble may further include frame starter information.
  • the frame type information may be part of a wakeup preamble, ie the wakeup preamble may further include frame type information.
  • the multicast address may be a group ID information, or the multicast address may include group number information.
  • the multicast address may also be a combination of multiple unicast addresses, that is, the multicast address may include multiple unicast addresses, and the unicast address may be information related to the identifier of the auxiliary wake-up interface of the wake-up device. For example, WUR ID, WUR Address; or information related to the MAC address of the target wake-up device, for example, MAC Address or Hashed MAC Address or Partial MAC Address.
  • the multicast wake-up frame may further include a legacy 802.11 Preamble, a Transmit Address, a BSS Info, a Control Info, a Counter, and a frame authentication information.
  • a legacy 802.11 Preamble a Transmit Address
  • BSS Info a BSS Info
  • Control Info a Control Info
  • Counter a Counter
  • FCS Frame Check Information
  • the basic service set information (BSS Info) may be information related to the identifier of the basic service set where the wake-up device and the wake-up device are located, for example, may be a BSSID or a Hashed BSSID, or may be a BSS color, or may be a wake-up device.
  • MAC Address or Hashed MAC Address MAC Address or Hashed MAC Address.
  • the multicast address of the multicast wake-up frame may include basic service set information (BSS Info), that is, the basic service set information may be part of the multicast address.
  • BSS Info basic service set information
  • the transmission address may include basic service set information (BSS Info), that is, the basic service set information may be part of the transmission address.
  • BSS Info basic service set information
  • the multicast wake-up frame also includes counter information (Counter), and the frame authentication information is generated according to the content, counter information, and key of the multicast wake-up frame; frame authentication The information is used to help the receiving device authenticate the authenticity of the multicast wake-up frame, and can prevent the attacker from sending a fake multicast wake-up frame to interfere with the wake-up operation.
  • Counter information Counter information
  • the frame check information may be used to help the receiving device verify the correctness of the received multicast wake-up frame.
  • the wake-up device determines a time at which the wake-up frame is sent according to the wake-up time shift.
  • the wake-up device determines, according to at least the wake-up time displacement determined by each wake-up device and the second moment, a first moment of sending a wake-up frame associated with each of the devices being woken, the first of the wake-up devices in the same multicast group The same moment.
  • the wake-up frame can be sent.
  • the moment when the wake-up frame is sent is the time at which the wake-up device expects to be able to send the wake-up frame.
  • the exact moment when the wake-up device sends the wake-up frame is random, and the randomness is caused by the wake-up device competing for the channel.
  • the exact moment at which the wake-up device actually sends the wake-up frame is the time at which the wake-up frame is expected to be transmitted, or later than the time at which the wake-up frame is expected to be transmitted (ie, the time to contend for the channel is increased).
  • the wake-up time shift is determined based on the time at which the desired wake-up device sends the wake-up frame.
  • step 8008 after step 808, after step 809, there is no necessary sequence between step 808 and step 807.
  • Step 808 may be performed before step 807, or after step 807, or step 808 and step 807, which are not limited herein.
  • the wake-up device sends a wake-up frame to the auxiliary wake-up interface of the associated wake-up device at a first moment related to each wake-up device.
  • the wake-up device respectively sends a wake-up frame to the auxiliary wake-up interface of each of the wake-up devices associated with the first moment at a first moment associated with each of the wake-up devices, the wake-up frame being used to indicate that the wake-up device associated with the first moment wakes up the master Communication Interface.
  • the waking device may send multiple unicast wake-up frames or one multicast wake-up frame to the awake device according to the determined time of sending the wake-up frame, and simultaneously wake up at least two awake devices, as shown in FIG. 9.
  • the first device to the fifth device have the same unicast wakeup time displacement, and can form a multicast group.
  • the multicast wake-up frame may carry the identification information of the auxiliary wake-up interface of each wake-up device in the multicast group; or the multicast wake-up frame may carry the identification information of the multicast group of the wake-up device (ie, Group ID) .
  • the awake device may send only the unicast wakeup frame; or the awake device may send only the multicast wakeup frame; or the awake device may send the unicast wakeup frame and the multicast wakeup frame at the same time, which is not limited herein.
  • the device that is woken up receives the wake-up frame sent by the wake-up device.
  • the wake-up device receives a wake-up frame sent by the wake-up device, and the wake-up frame is used to wake up the main communication interface of the wake-up device.
  • the wake-up device Since the exact moment when the wake-up device sends the wake-up frame is random (randomness is due to the contention channel), it may take some time for the wake-up device to wait for a period of time to receive the wake-up frame after waking up. Further, in order to prevent the wake-up device from missing the wake-up frame, the wake-up device's auxiliary wake-up interface needs to wake up a certain time in advance to wait for the wake-up frame to be received.
  • the wake-up time of the wake-up device of the wake-up device and the time to wait for receiving the wake-up frame may be determined by a specific device internal implementation, which may not be limited herein.
  • the awakened device determines, according to the wake-up frame, an active state of the wake-up device's primary communication interface and/or the auxiliary wake-up interface.
  • the wake-up device determines the operational status of the wake-up device's primary communication interface and/or the auxiliary wake-up interface based on the wake-up frame.
  • steps 810 and 811 are similar to the steps 310 and 311, and details are not described herein.
  • the wake-up device determines, according to the multicast trigger message and the wake-up time displacement, the time that the wake-up interface of the wake-up device receives the wake-up frame, so that the auxiliary wake-up interface is in a sleep state as much as possible and avoids
  • the auxiliary wake-up interface misses the wake-up frame, which improves the air interface efficiency when waking up multiple devices in asynchronous mode and further reduces the power consumption of the device being woken up.
  • an embodiment of the device in the embodiment of the present application includes:
  • FIG. 11a is a schematic structural diagram of a device according to an embodiment of the present application, and FIG. 11a is referred to.
  • Fig. 11a shows a possible structural diagram of the apparatus involved in the above embodiment.
  • the device 1100 includes a processing unit 1102 and a communication unit 1103.
  • the processing unit 1102 is configured to perform control management on the actions of the device.
  • the processing unit 1102 is configured to support the device to perform step 301, step 303, step 306 to step 308, and step 311 in FIG. 3, and/or for the description herein. Other processes of technology.
  • the communication unit 1103 is configured to support communication between the device and other network entities, and performs step 302, step 304 to step 305, and step 309 to step 310 in FIG.
  • the device may also include a storage unit 1101 for storing program code and data of the device.
  • the processing unit 1102 may be a processor or a controller, and may be, for example, a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), and an application-specific integrated circuit (Application-Specific). Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic device, transistor logic device, hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure.
  • the processor can also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.
  • the communication unit 1103 can be a communication interface, a transceiver, a transceiver circuit, etc., wherein the communication interface is a collective name and can include one or more interfaces, such as an auxiliary wake-up interface and a main communication interface.
  • the storage unit 1101 may be a memory.
  • the processing unit 1102 is a processor
  • the communication unit 1103 is a communication interface
  • the storage unit 1101 is a memory
  • the device involved in the embodiment of the present application may be the device shown in FIG. 11b.
  • the device 1110 includes a processor 1112, a communication interface 1113, and a memory 1111.
  • the device 1110 may further include a bus 1114.
  • the communication interface 1113, the processor 1112, and the memory 1111 may be connected to each other through a bus 1114; the bus 1114 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA). Bus, etc.
  • PCI Peripheral Component Interconnect
  • EISA Extended Industry Standard Architecture
  • the bus 1114 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 11b, but it does not mean that there is only one bus or one type of bus.
  • the device structure shown in FIG. 11a or FIG. 11b may also be a structure of a device part module.
  • the device 1200 includes an auxiliary wake-up interface 1201, a main communication interface 1202, a processor 1203, and a memory 1204 connected through a bus 1206.
  • the auxiliary wake-up interface 1201 is configured to receive the wake-up frame and the trigger message;
  • the main communication interface 1202 is configured to send the wake-up frame and the trigger message, and receive the wake-up signal sent by the auxiliary wake-up interface;
  • the processor 1203 is configured to execute the generated wake-up frame and An instruction to trigger a message;
  • the memory 1204 is configured to store an instruction to generate a wake-up frame and a trigger message;
  • the antenna module 1205 is configured to receive the wake-up frame and the trigger message, or send the wake-up frame and the trigger message.
  • the bus 1206 can be divided into an address bus, a data bus, a control bus, etc. As shown in FIG. 12, the auxiliary wake-up interface 1201, the main communication interface 1202, the processor 1203, the memory 1204, and the antenna module 1205 are connected by the bus 1206 and executed by the above method. Related steps in the example.
  • the auxiliary wake-up interface is a communication interface provided by the auxiliary wake-up module, and the auxiliary wake-up interface is at least one.
  • the main communication interface is a communication interface provided by the main communication module, and the main communication interface is at least one.
  • the processor is specifically configured to invoke a memory storage instruction, and perform the method steps as described in FIG. 3 or FIG. 8 through the auxiliary wake-up interface and the main communication interface.
  • 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 computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transmission to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.).
  • wire eg, coaxial cable, fiber optic, Digital Subscriber Line (DSL)
  • wireless eg, infrared, wireless, microwave, etc.
  • the computer readable storage medium can be any available media that can be stored by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a Solid State Disk (SSD)) or the like.
  • 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, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • 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 units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in the embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • a computer readable storage medium A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

Abstract

Les modes de réalisation de la présente invention concernent un procédé et un dispositif servant à mettre en marche un dispositif, utilisés afin de garantir qu'un dispositif de mise en marche met en marche efficacement une pluralité de dispositifs à mettre en marche dans un mode asynchrone, ce qui permet d'améliorer l'efficacité d'interface radio lorsqu'une pluralité de dispositifs sont mis en marche. Le procédé de mise en marche d'un dispositif selon les modes de réalisation de la présente invention comprend les étapes suivantes : un dispositif de mise en marche détermine le décalage temporel de mise en marche d'au moins un dispositif à mettre en marche ; le dispositif de mise en marche génère au moins deux messages de déclenchement ; le dispositif de mise en marche envoie lesdits messages de déclenchement à une interface de mise en marche auxiliaire du ou des dispositifs à mettre en marche ; le dispositif de mise en marche génère au moins une trame de mise en marche ; et le dispositif de mise en marche, à un premier instant associé à chaque dispositif à mettre en marche, envoie la trame de mise en marche à l'interface de mise en marche auxiliaire des dispositifs à mettre en marche qui sont associés au premier instant, respectivement, la trame de mise en marche étant utilisée pour indiquer au dispositif à mettre en marche qui est associé au premier temps, de mettre en marche une interface de communication principale de ce dernier. Les modes de réalisation de la présente invention concernent également un dispositif.
PCT/CN2017/081855 2017-02-08 2017-04-25 Procédé et dispositif servant à mettre en marche un dispositif WO2018145363A1 (fr)

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