WO2018171591A1 - Procédé et appareil de réveil d'un dispositif - Google Patents

Procédé et appareil de réveil d'un dispositif Download PDF

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Publication number
WO2018171591A1
WO2018171591A1 PCT/CN2018/079671 CN2018079671W WO2018171591A1 WO 2018171591 A1 WO2018171591 A1 WO 2018171591A1 CN 2018079671 W CN2018079671 W CN 2018079671W WO 2018171591 A1 WO2018171591 A1 WO 2018171591A1
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WIPO (PCT)
Prior art keywords
wifi
message
wake
interface
information
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PCT/CN2018/079671
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English (en)
Chinese (zh)
Inventor
庞高昆
方平
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华为技术有限公司
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Priority to CN201880003101.0A priority Critical patent/CN109565751B/zh
Publication of WO2018171591A1 publication Critical patent/WO2018171591A1/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
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0235—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a power saving command
    • 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 and apparatus for waking up a device.
  • WiFi wireless fidelity
  • IoT Internet of Things
  • the basic feature of the standard is to enable low-power and long-distance communication for WiFi IoT devices (also known as WiFi IOT terminals).
  • WiFi IoT devices also known as WiFi IOT terminals
  • LP low power
  • WUR wake-up radio/receiver
  • a station (station, abbreviated as STA) supporting an 802.11 protocol introduces a WUR interface (that is, the LPWUR shown in FIG. 1) based on a conventional WiFi interface (also referred to as an 802.11 main radio, that is, an 802.11 main module). ).
  • the WiFi interface of the STA is usually in a dormant state (in this state, the WiFi interface cannot perform data communication), and only when receiving the wake-up signal from the WUR interface of the STA, it is activated, and then can be accessed with an access point.
  • AP access point supporting 802.11 protocol
  • the WUR interface of the STA is continuously in working state (in this state, the WUR interface can perform data communication), or intermittently in working state, when the WUR interface of the STA receives the wake-up message from the AP in the working state (for example, the wake-up packet ( Wake-up packet)), the WUR interface of the STA sends a wake-up signal to the WiFi interface of the STA to wake up the WiFi interface of the STA in the dormant state.
  • Embodiments of the present application provide a method and apparatus for waking up a device to further reduce power consumption of a terminal device on a terminal device configured with a WUR interface and a WiFi interface.
  • the WiFi interface may also be referred to as a WiFi module or an 802.11 main module or a main communication interface;
  • the WUR interface may also be referred to as a WUR module or a WUR or an auxiliary wake-up interface.
  • the present application provides any of the following 1-18 embodiments (the numbers of the embodiments provided in this section have no clear correspondence with the numbers of the embodiments provided in other parts of the present document, and only the convenience of the description in this part) .
  • a method for transmitting a WUR message and a WiFi message comprising: a first device generating a WUR beacon message; the first device transmitting the WUR beacon message to a second device by using a WUR interface of the first device a WUR interface of at least one device, the WUR interface of the second device is currently in a first wake-up window, the first wake-up window is a wake-up window of the WUR interface of the second device, or a wake-up window of the WUR interface of the first device, or a wake-up window of a wake-up window of the WUR interface of the first device and a wake-up window of the WUR interface of the second device; or Sending, by the first device, the WUR beacon message to the WUR interface of the at least one device, including the second device, by using the WiFi interface of the first device, where the WUR interface of the second device is currently in the second wake window
  • the second wake-up window is a wake-up window of the WUR interface of the second device, or a wake-
  • the foregoing method may enable the second device to obtain the detailed information of the first device by using the WiFi interface after the WUR beacon message is heard, and the process of actively scanning the discovery and obtaining the second device is omitted.
  • the second device can save more power, and additionally adds a way to passively discover the second device, which increases the flexibility of the product implementation.
  • the WUR beacon further carries the time information, where the time information is used to indicate the time when the first device sends the WiFi beacon, that is, the time information indicates the predetermined time, the first The device transmits the WiFi beacon at a predetermined time indicated by the time information.
  • the second device can listen to the WiFi beacon at the predetermined time, and further save the second device.
  • the WUR beacon message may further include: security indication information, where the security indication information is used to indicate that the first device supports security verification, and the WUR beacon may also carry at least The identifier information of the device that includes the second device is used to indicate that the device that includes the second device receives the WiFi beacon message sent by the first device.
  • the foregoing method may enable the second device to determine whether to wake up the WiFi interface and then listen to the WiFi beacon according to the requirement, so that the second device reduces the number of unnecessary wake-up of the WiFi interface, and further saves power.
  • the WUR beacon may further carry identification information of a device including at least a second device, where the at least the second device is included, as in any one of the embodiments 1 to 3.
  • the device receives the WiFi beacon message sent by the first device.
  • the above method may enable the designated second device to wake up to listen to the WiFi beacon message, and has a certain mandatory effect, instead of the second device listening to the WiFi beacon according to its own needs, which may be executed when the AP sends the update management information. Increased flexibility of the program.
  • the first device sends a WiFi beacon message through the WiFi interface of the first device at a predetermined time
  • the predetermined time may be: after sending the WUR beacon
  • the foregoing method discloses different predetermined times.
  • the first device sends the WiFi beacon at different times.
  • the second device may be considered, for example, the WiFi device wake-up time of the second device, and the maximum waiting time is waiting, on the one hand, considering The first device needs to perform a WiFi message, the execution complexity of the first device, and the like, which can increase the flexibility of the AP to perform WiFi beacon transmission.
  • the foregoing method can reduce the time that the first device uses the channel when the WUR message is sent, and saves the air interface overhead.
  • the WUR beacon further carries the time information, where the time information is used to indicate the time when the first device sends the WiFi beacon, that is, the time information, in any one of the embodiments 1 to 6. Instructing the predetermined time, the first device sends the WiFi beacon at a predetermined time indicated by the time information, the time information may be a target time TBTT for transmitting a WiFi beacon, or the time information may be a distance sending The time interval of the WiFi beacon, or the time information may be TSF time information, the TSF time information may take all or part of the information of the TSF time or the Timestamp, and the first device sends the WiFi beacon at the time indicated by the TSF time information.
  • the first device may determine, according to the TSF time information, a time for sending a WiFi beacon message, or the time information may be reset time information, indicating that the first device restarts time recording, where the WiFi beacon is The fixed time after the reset time is sent.
  • the above method can make the time information carried in the WUR beacon different, and use the different time information manner to indicate the time when the first device sends the WiFi beacon, and the first device can select according to the occupied space of the sent message. Which kind of time information method.
  • the WUR beacon further carries the time information, where the time information is used to indicate the time when the first device sends the WiFi beacon, that is, the time information, in any one of the embodiments 1 to 7. Instructing the predetermined time, the first device sends the WiFi beacon at a predetermined time indicated by the time information, and the time information is further used by a second device that establishes a connection with the first device to receive the WUR
  • the becon is synchronized with the first device according to the time information.
  • the first device uses a time information to indicate the time when the first device sends the WIFi beacon, and the time information may further synchronize the second device that receives the time information with the first device. I went to send two different time information.
  • a method for transmitting a WUR message and a WiFi message comprising: receiving, by the second device, a WUR beacon message sent by the first device by using a WUR interface of the second device, where the WUR interface of the second device is currently in the first state a window, the first wake-up window being a wake-up window of the WUR interface of the second device, or a wake-up window of the WUR interface of the first device, or the WUR of the first device a wake-up window in which a wake-up window of the interface overlaps with a wake-up window of the WUR interface of the second device; or the second device receives the WUR beacon message sent by the first device by using the WUR interface of the second device
  • the WUR interface of the second device is currently in a second wake-up window
  • the second wake-up window is a wake-up window of the WUR interface of the second device, or the WiFi interface of the first device a wake-up window, or a wake-up window in which a wake-up window of the
  • the second device sends the indication information according to the WiFi beacon, the second device wakes up the WiFi interface of the second device, and receives the first device by using the WiFi interface of the second device.
  • Sending a WiFi beacon message; or the WiFi beacon sending indication information is used to indicate that the WUR beacon message is received and the second device establishing a connection with the first device wakes up the WIFI interface of the second device to receive the a WiFi beacon message sent by the first device through the WiFi interface, after the second device receives the WUR beacon message sent by the first device by using the WUR interface of the second device, the second device sends an indication according to the WiFi beacon.
  • the second device wakes up the WiFi interface of the second device, and receives the first device by using the WiFi interface of the second device WiFi beacon message sent.
  • the foregoing method may enable the second device to obtain the detailed information of the first device by using the WiFi interface after the WUR beacon message is heard, and the process of actively scanning the discovery and obtaining the second device is omitted.
  • the second device can save more power, and additionally adds a way to passively discover the second device, which increases the flexibility of the product implementation.
  • the second device After the second device receives the WUR beacon message sent by the first device by using the WUR interface of the second device, the second device sends the indication information according to the WiFi beacon, the second device.
  • the device wakes up the WiFi interface of the second device, and the second device does not send or cancel the sending of the probe request message, and receives the WiFi beacon message sent by the first device by using the WiFi interface of the second device.
  • the foregoing method may enable the second device to reduce the sending of the probe request, or the other acquiring the information request message, so that the second device is more power-saving.
  • the WUR beacon further carries time information, where the time information is used to indicate a time when the first device sends a WiFi beacon, and the second device receives the time according to the time information.
  • the WiFi beacon sent by the first device may enable the first device to wake up its own WiFi interface before the first device sends the WiFi beacon according to the time information, and reduce unnecessary wake-up time of the WiFi interface of the second device.
  • the WUR beacon message may further carry: security indication information, where the security indication information is used to indicate that the first device supports security verification, If the second device supports security verification, the second device receives the WiFi beacon message sent by the first device.
  • security indication information is used to indicate that the first device supports security verification
  • the second device receives the WiFi beacon message sent by the first device.
  • the foregoing method may enable the second device to determine whether to wake up its own WiFi interface according to its specific needs, and further enable the second device to save power.
  • the WUR beacon can further carry the identification information of the device including the second device, the second device according to the identification information of the device Receiving a WiFi beacon message sent by the first device.
  • the foregoing method may enable the second device to wake up its own WiFi interface according to the indication of the first device, and provide a mandatory. Otherwise, the second device wakes up its own WiFi interface according to its own needs.
  • the second device receives the WiFi beacon message through the WiFi interface of the second device at a predetermined time, the predetermined time may be: after the WUR beacon is sent.
  • the fixed time or, the time agreed in advance, or the time after the end of the window, or the time the device needs to wait, or the time required for the device to wake up its main radio, or the agreed time, or, standard
  • the foregoing method discloses different predetermined times.
  • the first device sends a WiFi beacon at different times.
  • the second device may be considered, for example, the second device WiFi interface wake-up time, and the maximum waiting time waits. Considering that the first device needs to send a WiFi message, the execution complexity of the first device, etc., so that the AP can increase the flexibility of performing WiFi beacon transmission.
  • the WUR beacon further carries the time information, where the time information is used to indicate the time when the first device sends the WiFi beacon, that is, the time information, in any one of the embodiments 9 to 14. Instructing the predetermined time, the second device receiving the WiFi beacon at a predetermined time indicated by the time information, the time information may be a target time TBTT for transmitting a WiFi beacon, or the time information may be a distance sending WiFi beacon.
  • the time interval, or the time information may be TSF time information
  • the TSF time information may take all or part of the information of the TSF time or the Timestamp, and the second device may determine, according to the TSF time information, that the WiFi beacon message is received.
  • the time, or the time information may be that the reset time information indicates that the first device restarts recording, and the WiFi beacon is sent at a fixed time after the reset time.
  • the above method can make the time information carried in the WUR beacon different, and use the different time information manner to indicate the time when the first device sends the WiFi beacon, and the first device can select according to the occupied space of the sent message. Which kind of time information method.
  • the WUR beacon further carries the time information, where the time information is used to indicate the time when the first device sends the WiFi beacon, that is, the time information, in any one of the embodiments 9 to 15. Instructing the predetermined time, the second device sends the WiFi beacon at a predetermined time indicated by the time information, and the second device establishing a connection with the first device further receives the WUR becon according to the time
  • the information is synchronized with the first device.
  • the first device uses a time information to indicate the time when the first device sends the WIFi beacon, and the time information may further synchronize the second device that receives the time information with the first device. I went to send two different time information.
  • An apparatus comprising: a memory, a processor, a WUR interface, and a WiFi interface; the memory for storing instructions and data; the processor for invoking instructions stored by the memory, by the WUR and the The WiFi interface performs the method as described in any of embodiments 1-8.
  • This embodiment provides a specific device, which may be referred to as a first device, and may enable the second device to obtain detailed information of the first device after the WUR beacon message is heard by the second device (for example, Network management parameters, capability information, supported services, supported transmission rate information, security parameters, association condition information, etc., eliminating the need for the second device to actively scan and discover the first device and obtain detailed information of the first device.
  • the process enables the second device to be more power efficient, and additionally adds a way to passively discover the second device, which increases flexibility in product implementation.
  • An apparatus comprising: a memory, a processor, a WUR interface, and a WiFi interface; the memory for storing instructions and data; the processor for invoking instructions stored by the memory, by the WUR and the The WiFi interface performs the method as described in any of embodiments 9-16.
  • This embodiment provides a specific device, which may be referred to as a second device. After the second device hears the WUR beacon message, the second device may obtain detailed information of the first device through the WiFi interface, which saves the need for the second device. The second device actively scans the process of discovering the first device and acquiring the detailed information of the first device, so that the second device can save more power, and additionally adds a way of passively discovering the second device, and adds a product. Flexibility in implementation.
  • the present application provides any of the following 1-9 embodiments (the numbers of the embodiments provided in this section have no clear correspondence with the numbers of the embodiments provided in other parts of the present document, and only the convenience of the description in this part) .
  • a method for transmitting a WUR message and a WiFi message comprising: a first device generating a WUR wakeup message; the first device transmitting the WUR wakeup message to a second device by using a WiFi interface of the first device a WUR interface of at least one device, the WUR interface of the second device is currently in a second wake-up window, the second wake-up window is a wake-up window of the WUR interface of the second device, or a wake-up window of the WiFi interface of the first device, or a wake-up window of a wake-up window of the WiFi interface of the first device and a wake-up window of the WUR interface of the second device;
  • the WUR wakeup message carries broadcast wakeup indication information, the broadcast wakeup indication information indicates that the WUR wakeup message is a broadcast wakeup message, and the broadcasted wakeup message is used to wake up at least one device including the second device.
  • a WiFi interface after the first device sends the WUR wakeup message, the first device sends a WiFi multi
  • the WUR wake-up message carries the WiFi multicast message sending indication information, where the WiFi multicast message sending indication information indicates that the first device will send the WiFi through the WiFi interface of the first device. After the first device sends the WUR wakeup message, the first device sends a WiFi multicast message at a predetermined time; or the WiFi multicast message sending indication information is used to indicate that the WUR is received.
  • the second device that wakes up the message and establishes a connection with the first device or the second device that is in the same BSS basic service set as the first device wakes up the WIFI interface of the second device to receive the first device through
  • the WUR wakeup message carries the indication BSS parameter update indication information, which is used to indicate that the first device sends the updated BSS parameter, or indicates the BSS parameter of the first device in the network. An update has occurred, or an indication that the second device described in the network has updated the BSS parameters.
  • the WUR wakeup message carries the indication BSS parameter update indication information, and the first device sends the updated BSS parameter to the second device by using the WiFi interface.
  • the WUR wakeup message carries the first network identification information or the second network identification information, the first identification information of the first device or the second device of the first device, in any one of the embodiments 1 to 4.
  • the identification information is at least one of the working channels of the WiFi interface of the first device.
  • the WUR wakeup message carries the first network identifier information, where the first network identifier information is used to indicate that the first device belongs to The network information, or the WUR wakeup message further carries the second network identifier information, where the second network identifier information is used to indicate network information to which the first device belongs, and the second network identifier information is based on the The information generated by the network identifier information; the WUR wake-up message carries the first identifier information of the first device, and is used to identify the device identifier of the WUR beacon message, or the WUR wake-up message carries the first device.
  • the second identifier information of the first device is used to identify a device identifier for sending a WUR beacon message, and the second identifier information is based on the first identifier Information generated; the wake-up message WUR WiFi interface device of the first working channel, for the second device to obtain the first apparatus operating channel WiFi interface.
  • the radio wake-up indication information is the first identifier information or the second identifier information of the first device.
  • the broadcast wake-up indication information is that the first identifier information or the second identifier information of the first device is placed in an address field of the WUR wake-up message, indicating that the WUR wake-up message is broadcast. Wake up the message.
  • the WUR wakeup message carries the time information, where the time information is used to indicate the time when the first device sends the WiFi multicast message, that is, the time information indicates the predetermined time, as in the first embodiment.
  • the first device sends the WiFi multicast message at a predetermined time indicated by the time information.
  • the information carried in the WiFI multicast message; the BSS parameter, the information used by the WiFi interface communication, the information used by the WUR interface communication, the time information, the wake-up window information of the first device, and the WUR of the second device Wake up window information, network identification information, address information of the first device, heartbeat information, role information, SSID service set identification information, service information, time information of sending WiFi beacon messages, time information of sending WUR synchronization messages, sending WUR beacon Time information of the message, time information of the WUR discovery message, WUR message sending target message transmission time target time information, WUR beacon message target beacon transmission time sending target time information, Target Wake Time target wake time information, WiFi interface working channel information , WUR interface working channel, frequency information of sending WUR synchronization message, frequency information of sending WiFi beacon message, device capability information, supported transmission rate information, robust security network parameters of RSN, associated condition information, quality of service quality of service parameters, etc.
  • updated BSS parameters updated WiFi interface communication usage information, updated WUR interface communication usage information, updated time information, updated first device wake window information, updated second device WUR wakes up window information, updated network identification information, updated first device address information, updated heartbeat information, updated role information, updated SSID service set identification information, updated service information, updated WiFi beacon Time information of the message, updated time information of the sent WUR synchronization message, updated time information of the transmitted WUR beacon message, updated time information of the sent WUR discovery message, updated WUR message sending target message transmission time target time information, updated WUR beacon message target beacon transmission time transmission target time information, updated Target Wake Time target wake-up time information, updated WiFi interface working channel information, updated WUR interface working channel, updated frequency information of transmitted WUR synchronization message, updated How often to send WiFi beacon messages At least one of information, updated device capability information, updated supported transmission rate information, updated RSN robust security network parameters, updated associated condition information, updated quality of service quality of service parameters, and the like.
  • the present application provides any of the following 1-8 embodiments (the numbers of the embodiments provided in this section have no clear correspondence with the numbers of the embodiments provided in other parts herein, and only the convenience of the description in this part) .
  • a method for transmitting a WUR message and a WiFi message comprising: receiving, by the second device, a WUR wakeup message sent by the first device by using a WUR interface of the second device, where the WUR interface of the second device is currently in the second wake up a window, the second wake-up window is a wake-up window of the WUR interface of the second device, or a wake-up window of the WiFi interface of the first device, or the WiFi of the first device a wake-up window in which a wake-up window of the interface overlaps with a wake-up window of the WUR interface of the second device; the WUR wake-up message carries broadcast wake-up indication information, and the broadcast wake-up indication information indicates that the WUR wakes up
  • the message is a broadcast wake-up message; the broadcast wake-up message is used to wake up a WiFi interface of at least one device including the second device; the second device after receiving the WUR wake-up message, the second The device wakes up the WiFI interface of the second device, and receives the
  • the WUR wakeup message carries the WiFi multicast message sending indication information
  • the second device sends the indication information according to the WiFi multicast message in the WUR wakeup message
  • the second device wakes up the The WiFi interface of the two devices.
  • the WUR wakeup message carries the indication BSS parameter update indication information, and after the second device receives the WUR wakeup message, the second device wakes up the WiFI interface of the second device, Receiving, by the WiFi interface of the second device, the WiFi multicast message sent by the first device through the WiFi interface at a predetermined time.
  • the second device does not send or cancel the sending of the probe request message, or the second device does not send or cancel the sending of the information request message, and receives the information through the WiFi interface of the second device.
  • the WUR beacon further carries time information, where the time information is used to indicate a time when the first device sends a WiFi multicast message, and the second device receives the information according to the time information.
  • the WiFi multicast message sent by the first device.
  • the WUR wakeup message carries the first network identification information or the second network identification information, the first identification information of the first device or the second device of the first device, in any one of the embodiments 1 to 5. At least one of the identification information and the broadcast wake-up indication information.
  • the method includes: the second device, according to the first network identifier information or the second network identifier information, the first identifier information of the first device or the second device Determining, by the at least one of the identification information, the broadcast wakeup indication information, that the second device wakes up the WiFi interface of the second device.
  • the WUR wake-up message carries at least one of the working channels of the WiFi interface of the first device, and specifically includes: the second device according to the first a working channel of the WiFi interface of the device, the second device waking up the WiFi interface of the second device, and adjusting a working channel of the WiFI interface of the second device to be a working channel of the WiFi interface of the first device.
  • the second device receives the WiFI multicast message sent by the first device by using a WiFi interface, and the second device is configured according to the WiFi multicast message according to any one of Embodiments 1 to 7.
  • the present application provides any of the following 1-17 embodiments (the numbers of the embodiments provided in this section have no clear correspondence with the numbers of the embodiments provided in other parts of the present document, and only the convenience of the description in this part) .
  • a method for waking up a device comprising: a first device broadcasting a wake-up message through a WiFi interface of the first device to at least two devices in a same network as the first device, the first device For the access point AP or the group Owner (GO) in the network, the wakeup message includes broadcast wakeup indication information (or may be simply referred to as indication information), and the broadcast wakeup indication information is used to indicate The wake-up message is a broadcast wake-up message, and the wake-up message is used to indicate that the device that receives the wake-up message through the WUR interface wakes up its own WiFi interface, and the WUR interface of the at least two devices is in the at least two devices.
  • broadcast wakeup indication information or may be simply referred to as indication information
  • a working window of the WUR interface or the WUR interface of the at least two devices is in a working window of the WiFi interface of the first device, or the WUR interface of the at least two devices is in the at least two devices
  • An overlapping working window of the WUR interface and the WiFi interface of the first device, the working window refers to a time interval in which information can be transmitted and/or received; the first device is in advance
  • the first time through the WiFi interface device transmits a multicast message to the WiFi at least two devices.
  • the method provided in this embodiment adds a broadcast wakeup indication information to the wakeup message, and the device that receives the wakeup message can all wake up its own WiFi interface, because multiple devices can be awakened almost simultaneously, compared to a possible implementation manner.
  • the first device sequentially sends a wake-up message to multiple devices to wake up multiple devices, which causes some devices to be woken up first, and some devices are woken up, the WiFi interface of the device that is first awake.
  • the working time will be longer than the working time of the WiFi interface of the device that wakes up later, thereby increasing the power consumption of the device that is first awake, and can reduce the work of the WiFi interface of some devices (such as the aforementioned device that is first awake).
  • the duration of the device reduces the power consumption of these devices, so that the power consumption of the terminal device can be further reduced on the terminal device configured with the WUR interface and the WiFi interface, and the signaling generated by waking up multiple devices (ie, terminal devices) can be reduced. Overhead.
  • the wake-up message further includes other information, where the other information is at least one of the following information: first indication information, second indication information, network identifier information of the network, The device identification information of the first device, and the working channel used by the WiFi interface of the first device to send the WiFi multicast message; wherein the first indication information is used to indicate that the first device is to pass the The WiFi interface of the first device sends the WiFi multicast message, or the first indication information is used to indicate that the device that receives the wakeup message receives the first device sent by using the WiFi interface of the first device.
  • the second indication information is used to indicate that the first device is to send the updated BSS parameter, or the second indication information is used to indicate that the BSS parameter of the network is updated.
  • the second device may determine whether to wake up the WiFi interface according to other information in the wakeup message, and consider the requirement of the second device, which increases the flexibility of the second device to wake up the WiFi interface.
  • the other information includes at least the second indication information
  • the WiFi multicast message includes the updated BSS parameter.
  • the second device may update the BSS parameter according to the updated BSS parameter in the WiFi multicast message, so that the second device can better use the service provided by the BSS, and receive the message sent by the device in the BSS, and the first device. Synchronization, etc.
  • the broadcast wakeup indication information is device identification information of the first device, in any one of the embodiments 1 to 3.
  • a method for waking up a device comprising: receiving, by a WUR interface of the second device, a wake-up message broadcast by the first device through a WiFi interface of the first device, where the second device
  • the first device is in the same network, the first device is an access point AP or a group length GO in the network, and the wake-up message includes broadcast wake-up indication information, where the broadcast wake-up indication information is used to indicate
  • the wake-up message is a broadcast wake-up message
  • the WUR interface of the second device is in a working window of the WUR interface of the second device, or the WUR interface of the second device is in the WiFi interface of the first device a working window, or the WUR interface of the second device is in an overlapping working window of the WUR interface of the second device and the WiFi interface of the first device, where the working window refers to being capable of transmitting and/or receiving information Time interval
  • the second device wakes up the WiFi interface of the second device according to the broadcast wakeup indication information in the wakeup message
  • the method provided in this embodiment adds a broadcast wakeup indication information to the wakeup message, and the device that receives the wakeup message can all wake up its own WiFi interface, because multiple devices can be awakened almost simultaneously, compared to a possible implementation manner.
  • This possible implementation manner is: the first device sequentially sends a wake-up message to multiple devices to wake up multiple devices, which causes some devices to be woken up first, and some devices are woken up, the WiFi interface of the device that is first awake.
  • the working time will be longer than the working time of the WiFi interface of the device that wakes up later, thereby increasing the power consumption of the device that is first awake, and can reduce the work of the WiFi interface of some devices (such as the aforementioned device that is first awake).
  • the duration of the device reduces the power consumption of these devices, so that the power consumption of the terminal device can be further reduced on the terminal device configured with the WUR interface and the WiFi interface, and the signaling generated by waking up multiple devices (ie, terminal devices) can be reduced. Overhead.
  • the wake-up message further includes other information, where the other information is at least one of the following information: first indication information, second indication information, network identifier information of the network, The device identification information of the first device, where the WiFi interface of the first device sends the working channel used by the WiFi multicast message, where the first indication information is used to indicate that the first device will pass the The WiFi interface of the device sends the WiFi multicast message, or the first indication information is used to indicate that the device that receives the wakeup message receives the location that the first device sends through the WiFi interface of the first device.
  • first indication information is at least one of the following information: first indication information, second indication information, network identifier information of the network, The device identification information of the first device, where the WiFi interface of the first device sends the working channel used by the WiFi multicast message, where the first indication information is used to indicate that the first device will pass the The WiFi interface of the device sends the WiFi multicast message, or the first indication information is used to indicate that the device that receives the wakeup message receives the location that the
  • the second indication information is used to indicate that the first device is to send an updated BSS parameter, or the second indication information is used to indicate that a BSS parameter of the network is updated;
  • the second device wakes up the WiFi interface of the second device according to the broadcast wakeup indication information in the wakeup message, including: the second device according to the broadcast wakeup indication information in the wakeup message And the other information in the wakeup message wakes up the WiFi interface of the second device.
  • the second device determines whether to wake up the WiFi interface according to more conditions, and considers the requirement of the second device, which increases the flexibility of the second device to wake up the WiFi interface.
  • the other information includes at least the second indication information
  • the WiFi multicast message includes the updated BSS parameter.
  • the second device may update the BSS parameter according to the updated BSS parameter in the WiFi multicast message, so that the second device can better use the service provided by the BSS, and receive the message sent by the device in the BSS, and the first device. Synchronization, etc.
  • the broadcast wakeup indication information is device identification information of the first device, in any one of Embodiments 7 to 9.
  • the wake-up message further includes time indication information, the time indication information is used to indicate the predetermined time; and the second device passes the predetermined time Before the WiFi interface of the second device receives the WiFi multicast message sent by the first device by using the WiFi interface of the first device, the method further includes: the second device determining, according to the time indication information, scheduled time.
  • the other information includes at least a working channel used by the WiFi interface of the first device to send the WiFi multicast message, the method further comprising: the second device adjusting the second device The working channel of the WiFi interface transmits the working channel used by the WiFi multicast message to the WiFi interface of the first device.
  • the hardware or software includes one or more units corresponding to the functions described above.
  • the device may be the first device described herein, in which case the device has the function of implementing the method provided by any of the above embodiments 1 to 6. Further, the device may be present in the first device described herein in the form of a product of the chip, and the first device is controlled to implement the method provided in any one of the foregoing Embodiments 1 to 6.
  • the device may be a second device as described herein, in which case the device has the functionality to implement the method provided by any of the above embodiments 7 through 13. Further, the device may be present in the second device described herein in the form of a product of the chip, and the second device is controlled to implement the method provided in any of the above embodiments 7 to 13.
  • a communication device comprising: a memory, a processor, a WiFi interface, and a WUR interface, the memory for storing computer execution instructions, the processor and the memory being connected by a communication bus, and the processor executing the memory storage computer execution instructions to
  • the apparatus is caused to implement any of the methods provided in any of the embodiments 1 to 13.
  • the device may be the first device described herein, in which case the device has the function of implementing the method provided by any of the above embodiments 1 to 6. Further, the device may be present in the first device described herein in the form of a product of the chip, and the first device is controlled to implement the method provided in any one of the foregoing Embodiments 1 to 6.
  • the device may be a second device as described herein, in which case the device has the functionality to implement the method provided by any of the above embodiments 7 through 13. Further, the device may be present in the second device described herein in the form of a product of the chip, and the second device is controlled to implement the method provided in any of the above embodiments 7 to 13.
  • a computer readable storage medium comprising instructions which, when executed on a computer, cause the computer to perform any one of the methods provided in any one of embodiments 1 through 13.
  • a computer program product comprising instructions which, when run on a computer, cause the computer to perform any of the methods provided in any one of embodiments 1 through 13.
  • FIG. 1 is a schematic diagram of a WiFi interface of an AP wake-up STA in the prior art
  • FIG. 2 is a schematic diagram of a composition of a wake-up frame (or wake-up packet) according to an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of a wake-up window of an interface according to an embodiment of the present disclosure
  • FIG. 4 is a schematic structural diagram of a wireless device according to an embodiment of the present application.
  • FIG. 5 is an interaction flowchart of a method for waking up a device according to an embodiment of the present disclosure
  • FIG. 6 is an interaction flowchart of another method for waking up a device according to an embodiment of the present disclosure
  • FIG. 7 is an interaction flowchart of still another method for waking up a device according to an embodiment of the present disclosure
  • FIG. 8 is a schematic structural diagram of a communication apparatus according to an embodiment of the present application.
  • first, second, third, etc. may be used to describe various messages, requests, and terminals in the embodiments of the present application, these messages, requests, and terminals should not be limited to these terms. These terms are only used to distinguish messages, requests, and terminals from one another.
  • the first terminal may also be referred to as a second terminal without departing from the scope of the embodiments of the present application.
  • the second terminal may also be referred to as a first terminal.
  • the first device in the following may also be referred to as a second device, and the second device may also be referred to as a first device.
  • the words “if” or “if” as used herein may be interpreted as “when” or “when” or “in response to determining” or “in response to detecting.”
  • the phrase “if determined (condition or event of presentation)” or “if detected (condition or event of presentation)” can be interpreted as “when determined (condition or event of presentation)” or “ In response to determining (stated condition or event) or “when detecting (condition or event stated)” or “in response to detecting (condition or event stated)”.
  • the AP side logically includes a WiFi interface and a WUR interface.
  • the signal sent by the WiFi interface is often orthogonal frequency-division multiplexing (OFDM).
  • the wideband signal while the wake-up signal is a narrowband signal, can be used to transmit wake-up signals using an OFDM wideband transmitter (located within the WiFi interface) for cost reduction and simplified structural considerations.
  • a partial subcarrier of the OFDM signal is vacant and the signal is transmitted only on the narrowband corresponding to the wakeup signal, thereby generating a narrowband signal.
  • This is an example of generating a narrowband signal by using an OFDM wideband transmitter, so that the AP side includes only one module in FIG.
  • the WiFi interface and the WUR interface can also be implemented separately in the specific implementation of the AP side.
  • both the AP and the STA have only one antenna.
  • the WiFi interface and the WUR interface use the same frequency band carrier (for example, 2.4 GHz), and the same antenna can be shared to save cost and simplify the device structure.
  • the WiFi interface and the WUR interface use different frequency band carriers, the two should be configured with different antennas.
  • the WiFi interface uses the 5 GHz band
  • the WUR interface uses the 2.4 GHz band. In this case, the two should correspond to different antennas.
  • the STA uses the WUR interface to reduce power consumption.
  • the main reason is that the wake-up signal is transmitted through narrowband (the narrower the bandwidth used by the device to transmit the signal, the smaller the power consumption of the device), and the reception and translation of the wake-up signal.
  • the code is much simpler than the traditional 802.11 frame.
  • the wake-up signal is usually modulated by a receiver that is easy to receive, such as on-off keying (OOK) modulation. Taking OOK modulation as an example, the receiving end judges the information carried by the received signal by the presence or absence of energy of the received signal. For example, the energy is 1, the energy is 0, and 1 and 0 respectively represent a kind of information.
  • OOK on-off keying
  • the traditional 802.11 frame adopts OFDM, block check character (BCC) (also called XOR check), and low density parity check code (LDPC) on the transmitting end. And so on, the receiving end needs to perform fast Fourier transform (FFT), and uses forward error correction (FEC) decoding and other complex signal processing operations, which require costly operations. A lot of energy.
  • BCC block check character
  • LDPC low density parity check code
  • the traditional short training field (L-STF), the traditional long training field (L-LTF), and the legacy signal field (recorded as L-SIG)
  • L-STF traditional short training field
  • L-LTF traditional long training field
  • L-SIG legacy signal field
  • a conventional WiFi message also referred to as an 802.11 message
  • a conventional WiFi device eg, can be
  • the STA in the text can determine that the current packet is a WiFi data packet, thereby selecting a corresponding channel reception decision threshold.
  • the Payload portion of the wake-up packet uses an easy-to-demodulate modulation scheme, such as OOK modulation (for example, amplitude shift keying (ASK), for example), and the wake-up packet can be transmitted over a narrower bandwidth, for example, 2MHz channel, 4MHz channel, 5MHz channel, etc. (the minimum bandwidth required for traditional transmission of WiFi message channels is 20MHz), so that the energy consumption at the receiving end is smaller.
  • OOK modulation for example, amplitude shift keying (ASK), for example
  • ASK amplitude shift keying
  • the wake-up packet payload includes a wake-up preamble and a media access control (MAC) portion.
  • the former is similar to the short training field (STF) and the long training field (LTF) of the traditional WiFi frame, and is used for synchronization, automatic gain control (AGC) and channel estimation.
  • the latter is similar to the MAC part of the traditional WiFi frame, and further includes a MAC header, a frame body, and a frame check sequence (FCS).
  • the MAC part may use a repetition code, a spreading code, and Manchester. Code and other methods for simple channel coding to improve reliability.
  • the wakeup preamble may include a sequence of specific sequences.
  • the WUR interface of the STA may not receive the previous legacy preamble portion, but directly detects the specific sequence to identify the beginning of the wakeup packet.
  • the WUR interface of the STA receives the wake-up packet and detects its own identity (unicast/multicast/broadcast address) from the MAC portion of the wake-up packet, a wake-up signal is sent to the WiFi interface.
  • the wake-up packet can be without the traditional preamble, and the MAC part can also not use the channel coding.
  • the payload portion can also adopt other modulation methods that are easy to demodulate, such as frequency-shift keying (FSK).
  • FSK frequency-shift keying
  • the WiFi interface may be a wireless interface provided by a WiFi module, the WiFi interface may also be referred to as an 802.11 interface, a main communication interface, etc., and the WiFi module may also be referred to as an 802.11 main module.
  • the WUR interface can be a wireless interface provided by the WUR module, the WUR interface can also be referred to as an auxiliary wake-up interface, and the WUR module can also be referred to as an auxiliary wake-up module. WUR can wake up the radio or wake up the receiver.
  • the primary communication interface (such as the interface provided by the WiFi module) is relative to the auxiliary wake-up interface (such as the interface provided by the WUR module).
  • the awake device When the awake device (eg, may be the AP above) has data to send to the awake device (eg, may be the STA above), the awake device sends a wake-up frame within the awake window of the WUR interface of the awake device (For example, the wake-up signal, wake-up packet can be the above) to the WUR interface of the wake-up device, thereby waking up the main communication interface (for example, WiFi interface) of the wake-up device, and the wake-up main communication interface is in an active state.
  • the wakeup of the primary communication interface can be understood as the primary communication interface can receive messages and/or send messages. Taking the WiFi interface as an example, after the WiFi interface of the device is woken up, the device can receive the WiFi message and/or send the WiFi message.
  • the main communication interface Before the main communication interface is woken up, the main communication interface is in a sleep state. In this case, the device cannot receive a message through the main communication interface, nor can it send a message through the main communication interface.
  • the WiFi interface in the sleep state as an example, the device cannot receive the WiFi message through the WiFi interface, and cannot send the WiFi message through the WiFi interface.
  • the WUR interface is in a working state, indicating that the device can receive and/or send a WUR message through the WUR interface.
  • the fact that the WiFi interface is in working state means that the device can receive and/or send WiFi messages through the WiFi interface.
  • the working state of an interface can be called the interface is in the wake-up window, and the length of time that the interface is in the working state is the length of the wake-up window of the interface.
  • Wake up windows can also be called work windows.
  • the interface in the embodiment of the present application may also be referred to as a communication interface.
  • the wake-up window of the WUR interface refers to the time when the WUR interface of the device is in a working state
  • the wake-up window of the WiFi interface refers to the time when the WiFi interface of the device is in a working state.
  • the “waking window of the first device” may be the time when the WUR interface of the first device and/or the WiFi interface of the first device is in an active state.
  • the first device may send a WUR message to the second device through the WiFi interface (at this time, the WiFi interface is in the wake-up window) or the WUR interface (when the WUR interface is in the wake-up window) in the wake-up window of the first device.
  • the "waking up window of the second device" may be the time when the WUR interface of the second device is in the working state.
  • the first device may send a WUR message to the second device through the WiFi interface or the WUR interface of the first device in the wake-up window of the WUR interface of the second device.
  • the "waking window of the first device” and the “waking window of the second device” may also wake up the window for the group, the group means that the first device and the second device are included.
  • devices in the group can have a unified wake-up window.
  • the first device and the second device use the same group to wake up the window.
  • the group wake-up window is a wake-up window commonly used by devices in the network to which the first device belongs (the network may be a group consisting of a plurality of devices including the first device and the second device).
  • the group wake up window may be negotiated or predetermined by the first device with the second device.
  • the second device may be a device that receives the WUR message sent by the first device (specifically, may be a device that receives the first device in the wake-up window of the second device or sends a WUR message in the wake-up window or the group wake-up window of the first device) And, or a device that performs WUR communication with the first device, or a device that establishes a connection with the first device.
  • the awake window of the first device has a time of overlapping or partially overlapping or not overlapping at all with the awake window of the second device.
  • a wake-up window of the WiFi interface of the first device and a wake-up window of the WUR interface of the second device have overlapping or partially overlapping or not overlapping time at all.
  • a wake-up window of the WUR interface of the first device and a wake-up window of the WUR interface of the second device have overlapping or partially overlapping or not overlapping time at all.
  • the wake-up window of the first device is a wake-up window of the WiFi interface of the first device
  • the wake-up window of the second device is a wake-up window of the WUR interface of the second device. If the wake-up window of the WUR interface of the second device starts at A, the end time is B, and the wake-up duration is C, the start time of the wake-up window of the WiFi interface of the first device is D, and the end time is E. The duration of waking is F.
  • the wake-up window of the WUR interface of the second device and the WiFi interface of the first device does not overlap at all: the start time A of the WUR interface of the second device is after the end time E of the WiFi interface of the first device, or the second device The end time B of the WUR interface is before the WiFi interface start time D of the first device.
  • the WUR interface of the second device partially overlaps with the awake window of the WiFi interface of the first device: the start time A of the WUR interface of the second device is after the start time D of the WiFi interface of the first device and the WiFi of the first device Before the end time E of the interface, or the start time D of the WiFi interface of the first device is after the start time A of the WUR interface of the second device and before the end time B of the WUR interface of the second device.
  • the awake window of the interface can be continuous, that is, the interface is always working, or the interface is always working for a period of time.
  • WUR interface or WiFi interface is always working.
  • the interface is in working state and can also be described as the interface does not sleep.
  • the wakeup window of the interface can be intermittent, that is, the interface is sometimes in a working state and sometimes in a non-working state.
  • the WUR interface or the WiFi interface is sometimes in a working state and sometimes in a non-working state.
  • the awake window of the interface can be periodic, that is, the interface is periodically working.
  • the WUR interface or the WiFi interface is periodically working.
  • the awake window of the interface can be aperiodic, that is, the interface is non-periodic and in working state.
  • the WUR interface or the WiFi interface is in a non-periodic working state.
  • the WUR interface can enable duty-cycling, that is, the periodic, regular "wake-sleep" of the WUR interface.
  • the WUR interface wakes up periodically (that is, the WUR interface is in working state, can receive the wake-up signal, and the working state can also be called the receiving state, the active state, the awake state, and the transmitting state), and waits for receiving the wake-up signal.
  • the WUR interface is in the waking window, and the WUR interface is in a sleep state outside the waking window (that is, the WUR interface is in the non-receiving state, or inactive, and cannot receive the wake-up signal), which is an ultra-low
  • the deep sleep state of power consumption power consumption is close to zero), so enabling the duty cycle can significantly reduce the average power consumption of the WUR interface.
  • the WUR may be referred to as a wake-up radio or a wake-up receiver, and the communication interface provided by the WUR may be referred to as a WUR interface.
  • the WUR interface is uniformly described in the full text.
  • the WUR interface can also be directly used to refer to the wake-up radio or the wake-up receiver, which is uniformly described herein, and will not be described below.
  • WUR can sometimes be called LP-WUR.
  • the transmission may include: transmitting, or receiving, or transmitting and receiving.
  • the first device transmits the WUR message, and specifically includes: the first device sends the WUR message, or the first device receives the WUR message, or the first device sends the WUR message and receives the WUR message.
  • the first device transmits the WiFi message, which may include: the first device sends a WiFi message, or the first device receives the WiFi message, or the first device sends the WiFi message and receives the WiFi message.
  • the second device transmits the WUR message, and specifically includes: the second device receives the WUR message, or the second device sends the WUR message, or the second device receives the WUR message and sends the WUR message.
  • the second device transmits the WiFi message, which may include: the second device receives the WiFi message, or the second device sends the WiFi message, or the second device receives the WiFi message and sends the WiFi message.
  • the embodiment of the present application provides a wireless device 40, which can implement any method embodiment provided by the present application.
  • the wireless device 40 is a first device (ie, a wake-up device, such as an AP), it can implement the actions performed by the first device in the embodiment of the present application.
  • the wireless device 40 is a second device (ie, a wake-up device, such as a STA), it can implement the actions performed by the second device in the embodiment of the present application.
  • the specific structure of the wireless device 40 can be seen in FIG. 4.
  • the wireless device 40 includes, but is not limited to, an auxiliary wake-up interface 401, a main communication interface 402, a processor 403, a memory 404, and an antenna module 405.
  • the auxiliary wakeup interface 401 can be the WUR interface above, and the primary communication interface 402 can be the WiFi interface above.
  • the auxiliary wake-up interface 401 can be configured to receive a wake-up signal sent by other wireless devices and/or send a wake-up signal to other wireless devices, and send a wake-up signal to the main communication interface 402 after receiving the wake-up signal to wake up the main communication interface 402.
  • the primary communication interface 402 can be used to receive wake-up signals transmitted by the auxiliary wake-up interface 401 and to send and receive other messages, such as WiFi frames.
  • the processor 403 may have one or more for implementing the generation and setting of the aforementioned wake-up preamble, and the generation of the wake-up signal.
  • Memory 404 can have one or more.
  • auxiliary wakeup interface 401 and primary communication interface 402. may be shared by auxiliary wakeup interface 401 and primary communication interface 402.
  • the auxiliary wake-up interface 401 and the main communication interface 402 can share the same antenna module 105, mainly for reducing equipment hardware cost and implementing simple considerations.
  • the auxiliary wake-up interface 401 and the primary communication interface 402 may also correspond to different antenna modules, particularly when the two operate in different frequency bands.
  • the wireless device 40 can be implemented by a system-on-a-chip (SoC) or by an integrated circuit or by two hardware modules.
  • SoC system-on-a-chip
  • the wireless device 40 can perform any of the methods provided by the embodiments of the present application by using the auxiliary wake-up interface 401 and the main communication interface 402.
  • the method provided by the embodiments of the present application may be used for, but not limited to, the following scenarios: a WiFi-based IoT and a wearable WiFi network (ie, a mobile phone as a virtual access point and a WiFi network composed of associated wearable devices).
  • IoT devices and wearable WiFi network devices are devices that are powered by small-capacity batteries and have ultra-low power consumption and long-term endurance requirements.
  • the first embodiment of the present application is configured to enable the first device that sends the WUR discovery message to carry the WiFi sending indication information in the WUR discovery message, where the WiFi sending indication information is used to indicate that the first device is to send a WiFi discovery message, and the second device receives the WUR. After the message is found, it is determined that the first device is to send a WiFi discovery message according to the WiFi sending indication information, and then waits to receive the WiFi discovery message sent by the first device, instead of the second device actively sending a probe request message through the WiFi interface. Thereby reducing the number of messages sent by the WiFi interface and reducing the power consumption of the second device.
  • the WUR discovery message in the embodiment of the present application may also be referred to as a WUR beacon message (WUR beacon message), and the WiFi discovery message may also be referred to as a WiFi beacon message (WiFi beacon message).
  • Beacon messages are generally sent by broadcast.
  • the STA device that is not connected to the AP can find the appropriate AP hotspot through the WUR interface, and then connect to the AP.
  • the AP can obtain the AP information by receiving the WUR discovery message and establish a connection with the AP.
  • the purpose of the solution provided by the embodiment of the present application is to reduce the power consumption of the STA device.
  • the STA device that has established a connection with the AP or the STA device that is in the same basic service set (BSS) as the AP, needs to obtain updated management parameter information (update key, channel) sent by the AP.
  • the WUR interface receives the WUR discovery message and obtains the WiFi transmission indication information, the STA device can flexibly determine whether to wake up when it needs to listen to the WiFi discovery message sent by the AP.
  • Receiving a WiFi discovery message sent by the AP obtaining updated management parameter information, status information of the current AP, and the like from the WiFi discovery message.
  • the process of the STA device requesting the updated management parameter information and the status information of the current AP through the WiFi interface is omitted, and the power consumption of the STA device can be reduced.
  • the device that generates the WUR discovery message and sends the WUR discovery message is the first device
  • the device that receives the WUR discovery message is the second device.
  • the second device may be a device that does not establish a connection with the first device.
  • a device that has established a connection with the first device or a device that is in the same BSS as the first device
  • the device that knows the wake-up window of the first device exemplary, the device that has established a connection with the first device can know which waking window the first device sends the WUR discovery message, and the device that knows the awake window of the first device can be the device that establishes the connection with the first device.
  • the device may be other devices, which is not specifically limited in this embodiment.
  • the WUR discovery message in the embodiment of the present application may also be referred to as a WUR synchronization message or a WUR wakeup message, and these messages may all be WUR broadcast (or multicast, or unicast) messages (ie, broadcast (or multicast, or single).
  • the WUR message of the broadcast which may include the broadcast address of the broadcast (or multicast, or unicast) WUR message).
  • the WiFi discovery message in the embodiment of the present application may also be referred to as a WiFi data (data) message, and these messages may all be WiFi broadcast (or multicast, or unicast) messages (ie, broadcast (or multicast, or unicast).
  • a WiFi message which may include a broadcast (or multicast, or unicast) receiving address).
  • the WUR message, the WUR wakeup message, the WUR synchronization message, the WUR discovery message, the WUR broadcast (or multicast, or unicast) message are all messages conforming to the WUR signal characteristics (ie, the message that the WUR receiver can parse) ), it can also be a wake-up package.
  • the embodiment of the present application provides a method for waking up a device, as shown in FIG. 5 or FIG. 6.
  • the communication method includes:
  • the first device generates a WUR discovery message.
  • the WUR discovery message carries the WiFi sending indication information, where the WiFi sending indication information is used to indicate that the first device sends the WiFi discovery message through the WiFi interface of the first device, or the WiFi sending indication information is used to indicate that the WUR discovery message is received and the first The device that establishes the connection or the device in the same BSS as the first device wakes up the WiFi interface, and receives the WiFi discovery message sent by the first device through the WiFi interface.
  • the first device sends a WUR discovery message to the WUR interface of the at least one device including the second device by using the WUR interface or the WiFi interface of the first device.
  • the WUR interface of the second device When the first device sends the WUR discovery message through the WUR interface of the first device, the WUR interface of the second device is currently in the first wake-up window, and the first wake-up window is a wake-up window of the WUR interface of the second device.
  • the first wake-up window is a wake-up window of the WUR interface of the first device, or, the first wake-up window is a wake-up window of the WUR interface of the first device and a wake-up window of the WUR interface of the second device Wake up windows that overlap windows.
  • the WUR interface of the second device When the first device sends the WUR discovery message through the WiFi interface of the first device, the WUR interface of the second device is currently in the second wake-up window, and the second wake-up window is a wake-up window of the WUR interface of the second device, or
  • the second wake-up window is a wake-up window of the WiFi interface of the first device, or, the second wake-up window is a wake-up window of the WiFi interface of the first device and a wake-up window of the WUR interface of the second device Overlapping wake up windows.
  • the first device sends a WiFi discovery message at a predetermined time.
  • the second device receives the WUR discovery message sent by the first device.
  • step 503 and step 504 is in no particular order.
  • the second device wakes up the WiFi interface of the second device according to the WiFi sending indication information included in the WUR discovery message.
  • the second device receives the WiFi discovery message sent by the first device by using a WiFi interface of the second device at a predetermined time.
  • the WiFi sending indication information may also be referred to as a broadcast message sending indication information, where the broadcast message sending indication information is used to indicate that the WUR discovery message sent by the first device is a broadcast message.
  • the second The device wakes up the WiFi interface of the second device according to the broadcast message sending indication information included in the WUR discovery message.
  • the WiFi sending indication information may also be the wakeup indication information or the broadcast wakeup indication information, and the wakeup indication information is used by all the devices that receive the wakeup indication information to wake up the WiFi interface, and the broadcast wakeup indication information is used to receive all the devices of the broadcast wakeup indication information.
  • Wake up the WiFi interface all devices include at least a second device, all devices may be devices that establish a connection with the first device, or devices in the same BSS as the first device, or receive the first in the wake-up window of the WUR interface A device that sends a WUR discovery message to a device.
  • the wakeup indication information or the broadcast wakeup indication information may also be used to instruct the first device to send the WiFi discovery message through the WiFi interface of the first device.
  • the second device wakes up the WiFi interface of the second device according to the wakeup indication information or the broadcast wakeup indication information included in the WUR discovery message.
  • the second device does not send or cancel the sending of the probe request message after waking up the WiFi interface of the second device according to the WiFi sending indication information, and the second device waits to receive the WiFi discovery message sent by the first device.
  • the second device does not send or cancel the sending of the information request message after waking up the WiFi interface of the second device according to the WiFi sending indication information, and the second device waits to receive the WiFi discovery message sent by the first device, and the information request message is required by the second device.
  • the communication method includes:
  • the first device generates a WUR discovery message.
  • the first device sends a WUR discovery message to the WUR interface of the at least one device including the second device by using the WUR interface or the WiFi interface of the first device.
  • the WUR interface of the second device When the first device sends the WUR discovery message through the WUR interface of the first device, the WUR interface of the second device is currently in the first wake-up window, and the first wake-up window is a wake-up window of the WUR interface of the second device.
  • the first wake-up window is a wake-up window of the WUR interface of the first device, or, the first wake-up window is a wake-up window of the WUR interface of the first device and a wake-up window of the WUR interface of the second device Wake up windows that overlap windows.
  • the WUR interface of the second device When the first device sends the WUR discovery message through the WiFi interface of the first device, the WUR interface of the second device is currently in the second wake-up window, and the second wake-up window is a wake-up window of the WUR interface of the second device, or
  • the second wake-up window is a wake-up window of the WiFi interface of the first device, or, the second wake-up window is a wake-up window of the WiFi interface of the first device and a wake-up window of the WUR interface of the second device Overlapping wake up windows.
  • the first device sends a WiFi discovery message at a predetermined time after sending the WUR discovery message, where the predetermined time is a time for transmitting the WiFi discovery message determined by the first device and the second device according to the preset rule.
  • the second device receives the WUR discovery message sent by the first device.
  • the second device wakes up the WiFi interface of the second device according to the WUR discovery message.
  • the second device receives the WiFi discovery message sent by the first device by using a WiFi interface of the second device at a predetermined time after receiving the WUR discovery message.
  • the first device may be a network device.
  • the first device may be an AP, and the AP may be a base station, a relay, or the like.
  • the WUR discovery message may further include network information for other devices to establish a connection with the first device.
  • the second device may be a terminal, for example, the STA in the above, and the STA may specifically be a mobile phone, an electric meter, a water meter, or the like.
  • the first device and the second device may pre-determine a sending rule of the WiFi discovery message, or the first device may perform the WiFi discovery message sending rule fixedly, or the standard specifies that the first device performs the
  • the WiFi discovery message sending rule is as follows: The first device sends a WiFi discovery message at a predetermined time after transmitting the WUR discovery message.
  • the method shown in FIG. 6 differs from the method shown in FIG. 5 mainly in that the first device and the second device advance a predetermined rule, and the first device sends a WiFi discovery message at a predetermined time after transmitting the WUR discovery message, and does not need to be performed.
  • the first device adds the WiFi sending indication information to the WUR discovery message, that is, does not need to occupy the bit in the message to indicate the sending of the WiFi discovery message.
  • the probe request message is not sent or cancelled, and the second device waits to receive the WiFi discovery message sent by the first device.
  • the second device After the second device wakes up the WiFi interface of the second device, the second device waits to receive the WiFi discovery message sent by the first device, and the second device needs to obtain the information request message from the first device. A message sent to the first device when the information is needed.
  • the WUR discovery message may adopt a frame format as shown in FIG. 2, or may adopt a frame format of other newly defined action messages, or may be modified according to a frame format of an existing message.
  • the frame format is not specifically limited in this embodiment of the present application.
  • the second device after receiving the WiFi discovery message sent by the first device, the second device establishes a communication connection with the second device on the WiFi interface. It should be noted that the second device can receive the WiFi message even before the communication connection on the WiFi interface is established with the first device (for example, obtaining a WiFi message through the scan channel). After the second device establishes a communication connection on the WiFi interface with the first device, the WiFi message can be acquired more quickly and accurately (for example, the WiFi message can be obtained directly on the channel carrying the WiFi message without scanning all channels).
  • the second device may wake up the WiFi interface of the second device and wait to receive the WiFi discovery message sent by the first device before the predetermined time.
  • the WUR discovery message may further carry at least one of the following information.
  • security indication information security indication information is used to indicate whether the first device supports security verification. For example, if the value of the bit occupied by the security indication information is 1, the first device supports security verification. When the bit value is 0, the first device does not support security verification.
  • the first device When the first device supports security verification, when the second device establishes a secure connection with the first device, the first device and the second device need to perform an authentication process.
  • the first device does not support the security verification
  • the second device establishes a secure connection with the first device, the first device and the second device do not need to perform the verification process.
  • the second device may determine, according to the security indication information carried in the WUR discovery message, whether to receive the WiFi discovery message. If it is decided to receive the WiFi discovery message, the WiFi interface of the second device is awake, otherwise, the WiFi interface of the second device is not awake. Exemplarily, if the second device needs to perform security verification, and the security indication information in the WUR discovery message received by the second device is to support security authentication, or the second device does not need to perform security verification, the second device wakes up the second device. The WiFi interface receives the WiFi discovery message sent by the first device through the WiFi interface of the second device. Otherwise, the second device does not wake up the WiFi interface to receive the WiFi discovery message.
  • Network Identification Information 2 network identification information, and network identification information is used to indicate the network to which the first device belongs.
  • the network identification information may be a group ID.
  • the network identifier information may also be one of a BSS color and a service set identifier (SSID) information.
  • SSID service set identifier
  • the group or BSS may also be referred to as a WUR network.
  • the group or BSS may also be referred to as a WiFi network.
  • the WUR network can be identified by the ID or name of the WUR network
  • the WiFi network can be identified by the ID or name of the WiFi network.
  • the network identifier may be the first identifier or the second identifier in the following, and the related descriptions of the first identifier and the second identifier may be described in the corresponding portions in the following.
  • the second device may determine, according to the network identifier information carried in the WUR discovery message, whether to receive the WiFi discovery message. If it is decided to receive the WiFi discovery message, the WiFi interface of the second device is awake, otherwise, the WiFi interface of the second device is not awake.
  • the second device may determine whether to receive the WiFi discovery message by determining whether the network identification information in the WUR discovery message matches the required network identification information. For example, the second device may receive the WiFi discovery message when determining that the network identification information in the WUR discovery message matches the required network identification information; otherwise, the WiFi discovery message is not received.
  • the "required” described in the embodiments of the present application can also be described as "recorded”.
  • the network identifier information in the WUR discovery message received by the second device is an SSID. If the SSID required by the second device does not match the SSID in the WUR discovery message, the second device does not wake up the WiFi interface of the second device. Receiving the WiFi discovery message, if the packet is matched, the second device wakes up the WiFi interface of the second device, and receives the WiFi discovery message sent by the first device by using the WiFi interface of the second device.
  • the network identifier information in the WUR discovery message received by the second device is a WUR network identifier. If the WUR network identifier required by the second device does not match the WUR network identifier in the WUR discovery message, the second device does not wake up the second.
  • the WiFi interface of the device receives the WiFi discovery message. If the device matches, the second device wakes up the WiFi interface of the second device, and receives the WiFi discovery message sent by the first device through the WiFi interface of the second device.
  • the information 3, the service identification information, the service identification information is used to indicate the service supported by the first device, or the service supported by the network to which the first device belongs, and the service identification information may be a service name (service name), a service identifier (service ID) , service hash (service hash, value generated based on hashing of service information), and so on.
  • the second device may determine, according to the service identifier information carried in the WUR discovery message, whether to receive the WiFi discovery message. If it is decided to receive the WiFi discovery message, the WiFi interface of the second device is awake, otherwise, the WiFi interface of the second device is not awake.
  • the second device may determine whether to receive the WiFi discovery message by determining whether the service identification information carried in the WUR discovery message matches the required service identification information. For example, the second device may receive the WiFi discovery message when determining that the service identification information carried in the WUR discovery message matches the required service identification information; otherwise, the WiFi discovery message is not received.
  • the service identification information in the WUR discovery message received by the second device is the identification information of the service 1
  • the service required by the second device is the service 2 (that is, the service identification information required by the second device is the identification information of the service 2)
  • the second device determines that the service identifier information carried in the WUR discovery message does not match the required service identifier information, and the second device does not wake up the WiFi interface of the second device to receive the WiFi discovery message.
  • the information 4, the time information, the time information is used to indicate the time when the first device sends the WiFi discovery message, that is, the time information indicates the predetermined time, the first device sends the WiFi discovery message at the predetermined time, and the second device indicates the time indicated by the time information ( That is, the predetermined time) receiving a WiFi discovery message from the first device.
  • the time information may specifically be at least one of the following information:
  • the target time for sending a WiFi discovery message (for example, target beacon transmit time (TBTT)). For example, if a WiFi discovery message is sent at 20:00, the target time is 20:00.
  • TBTT target beacon transmit time
  • the second device receives the WiFi discovery message sent by the first device at the target time.
  • the interval between sending the WiFi discovery message (indicating that the first device sends a WiFi discovery message after waiting for the interval, and the interval time may also be referred to as an offset time).
  • the second device waits for an interval to receive the WiFi discovery message sent by the first device.
  • the interval time is an interval between a time point at which a certain message is sent and a time point at which the WiFi discovery message is sent, that is, the first device sends a WiFi discovery message after an interval time of sending a certain message.
  • the interval time may be a time interval between a time point when the WUR discovery message is sent and a time point when the WiFi discovery message is sent.
  • TSF time information can take all or part of the TSF time or timestamp (Timestamp) information
  • a device sends a WiFi discovery message at the time indicated by the TSF time information.
  • the first device uses the TSF time modulo operation. When the operation result is 0, the first device sends a WiFi discovery message at the TSF time. If the operation result is not 0, the first device does not send the WiFi discovery message at the TSF time.
  • the first device may determine, according to the TSF time information, a time when the WiFi discovery message is sent.
  • the second device receives the WiFi discovery message sent by the first device at the time indicated by the TSF time information, and the second device may determine, according to the TSF time information, the time when the first device sends the WiFi discovery message. Similarly, the second device uses the TSF time modulo operation. When the operation result is 0, the TSF time is the sending time of the first device to send the WiFi discovery message. If the operation result is not 0, the TSF time is not the first device. When the sending time of the WiFi discovery message is sent, the second device may determine the time at which the WiFi discovery message is received according to the TSF time information.
  • the reset time information indicates the time when the first device restarts recording, and the WiFi discovery message can be sent at the reset time (or a fixed time after the reset time).
  • the second device receives the WiFi discovery message sent by the first device at the reset time (or a fixed time after the reset time).
  • the predetermined time may be: a fixed time after the first device sends the WUR discovery message, or the first device and the second device agree in advance. Time, or the time required for the second device to wake up the WiFi interface, or, the time specified by the standard, or, a fixed time, or one of the times when the second device waits for a WiFi message (eg, WiFi discovery message) to time out kind.
  • a WiFi message eg, WiFi discovery message
  • the information of the first device is used to identify the device that sends the WUR discovery message.
  • the identifier of the first device may be: the ID of the first device, the MAC address of the first device, and the WUR interface address of the first device. Or a WUR ID of the first device, an association identifier (AID) (an identifier assigned by the first device to the second device), a traffic indication map (TIM), and the like.
  • AID association identifier
  • TIM traffic indication map
  • the identifier of the first device may be the third identifier or the fourth identifier in the following, and the related descriptions of the third identifier and the fourth identifier may be referred to the description of the corresponding part in the following.
  • the second device determines whether to receive the WiFi discovery message according to the identification information of the first device. If it is decided to receive the WiFi discovery message, the WiFi interface of the second device is awake, otherwise, the WiFi interface of the second device is not awake.
  • the second device may determine whether to receive the WiFi discovery message by determining whether the identifier information of the device in the WUR discovery message matches the identifier information of the first device. For example, the second device may receive the WiFi discovery message when determining that the identification information of the device in the WUR discovery message matches the identification information of the first device, otherwise, the WiFi discovery message is not received.
  • the second device does not wake up the WiFi interface.
  • the information of the device that receives the WiFi discovery message may be: the ID of the device, the MAC address of the device, the WUR interface address of the device, the AID, the TIM, and the broadcast address information.
  • the second device wakes up the WiFi interface of the second device and waits to receive the WiFi discovery message sent by the first device, if the second device receives the The WUR discovery message does not include the identification information of the second device, and the second device does not receive the WiFi discovery message sent by the first device.
  • the information about the WUR network where the first device is located is used by the second device to obtain more information about the WUR network where the first device is located. Because the first device and the second device are in the same network, the second device is based on the first device. The information of the WUR network sent by the device adjusts or records the network information of the second device.
  • the WUR network information includes at least: time information for synchronizing devices in the WUR network, wake-up window information of the WUR interface of the first device, and network identification information of the WUR network (for details, see above), the first device Address information, heartbeat information (that is, a signal periodically sent by the first device to identify that the first device is in a working state), role information of a role of the first device in the network, and service information that the WUR network can provide (for example, printing, surfing the Internet) At least one of the working channel information of the WUR interface of the first device, voice, video, etc.).
  • the second device adjusts the information of the device according to the received WUR discovery message sent by the first device, and the adjusting the information of the device includes: adjusting the time information to synchronize with the first device, and adjusting the wakeup window of the WUR interface of the second device to The waking window of the WUR interface of the device is the same, and the network identifier information recorded by the second device is adjusted to be the network identifier information of the WUR network carried in the WUR discovery message, and the working channel of the WUR interface of the second device is adjusted to be the WUR of the first device. At least one of an interface working channel and the like.
  • the second device determines that the first device is in the working state according to the heartbeat information, and the second device records the address information of the first device, the role information of the role of the first device in the WUR network, the service information that the WUR network can provide, and the like.
  • the second device may wake up the WiFi interface according to the foregoing information in the WUR discovery message, and may also wake up the WiFi interface according to the multiple information in the information in the WUR discovery message, which is not specifically limited in this embodiment of the present application. .
  • the WiFi discovery message may include information about the WiFi network where the first device is located, and the second device acquires more information about the WiFi network where the first device is located.
  • the WiFi network information includes at least: time information for synchronizing devices in the WiFi network, wake-up window information of the WiFi interface of the first device, network identification information of the WiFi network (for example, ID of the WiFi network, or WiFi network Name, or, BSS color, or group identification), address information of the first device, heartbeat information, role information of the role of the first device in the WiFi network, service information that the WiFi network can provide, WiFi channel working channel information, Capability information of the WiFi network, transmission rate information supported by the WiFi network, security of the WiFi network (for example, a robust security network (RSN) parameter, etc.).
  • RSSN robust security network
  • the second device adjusts the information of the device according to the received WiFi discovery message sent by the first device, and the information of the device is adjusted: the time information is adjusted to synchronize with the first device, and the WiFi interface of the second device is adjusted to wake up.
  • the window is consistent with the awake window of the WiFi interface of the first device, and the network identifier information recorded by the second device is adjusted to be the network identifier information of the WiFi network carried in the WiFi discovery message, and the working channel information of the WiFi interface of the second device is adjusted. At least one of a WiFi interface working channel of the first device, and the like.
  • the second device determines that the first device is in the working state according to the heartbeat information, the second device records the address information of the first device, the role information of the role of the first device in the WiFi network, the service information that the WiFi network can provide, and the capability of the WiFi network. Information, transmission rate information supported by the WiFi network, security parameters of the WiFi network, etc.
  • the second device synchronizes with the first device according to the received WiFi discovery message.
  • the second device may perform coarse synchronization with the first device according to the information in the WUR discovery message, and perform accurate with the first device according to the information in the WiFi discovery message. Synchronize).
  • the second device accepts (accept, or, adopts) the time information in the WiFi discovery message, and adjusts the time of the second device or the TSF time or TSF time according to the time information in the WiFi discovery message ( Time) or TSF time value.
  • the second device adjusts the wakeup window of the WUR interface of the second device according to the wakeup window information of the WUR interface of the first device included in the WUR discovery message, or the second device uses the wakeup window of the WUR of the first device, or The second device and the first device determine a new wake-up window.
  • the second device receives the WUR wakeup message sent by the first device in the adjusted wakeup window, and the WUR wakeup message is used to wake up the WiFi interface of the at least one device including the second device.
  • the at least one device including the second device receives the WUR wakeup message sent by the first device in the first awake window, and the WUR wakeup message is used to wake up the WiFi interface of the at least one device including the second device.
  • the first device may reduce the information carried in the WUR discovery message, for example, may not carry time information for synchronization. Since the second device can receive the WiFi discovery message, the WiFi discovery message can carry a lot of detailed network information.
  • the WiFi sending indication information may be carried in a control domain of a WUR discovery message, or a type field, or an address domain, or a preamble domain, or one or more of a signal (SIG) domain. In particular, it can be represented by 1 bit.
  • the second device After receiving the WUR discovery message, the second device obtains the WiFi transmission indication information according to one or more of the control domain, or the type domain, or the address domain, or the preamble domain, or the signal domain.
  • the second device if the WiFi transmission indication information is carried in the control domain (which may also be a type domain, or an address domain, or a preamble domain, or a signal domain), the second device according to the control domain of the received WUR discovery message ( It can also be a type field, or an address field, or a preamble field, or a signal field, to obtain a WiFi transmission indication information.
  • the control domain which may also be a type domain, or an address domain, or a preamble domain, or a signal domain
  • the second device according to the control domain of the received WUR discovery message ( It can also be a type field, or an address field, or a preamble field, or a signal field, to obtain a WiFi transmission indication information.
  • the second device may determine whether to wake up the WiFi interface according to the condition. For specific determination conditions, refer to the above.
  • the WiFi sending indication information may also be represented by a pre-defined WUR discovery message format, that is, an implicit representation manner, and does not need to occupy the bit in the WUR discovery message to indicate. This may be represented by the angle of rotation of the symbol in the WUR discovery message, or by a pre-specified symbol in the WUR discovery message, or by a pre-specified sequence in the WUR discovery message, or by a predetermined provision in the WUR discovery message.
  • the training sequence is represented, or, the WUR finds a different length in the message to represent, or, the WUR discovery message pre-specified ID information, or color information, or, up, or, down indication .
  • the second device After receiving the WUR discovery message, the second device obtains the WiFi transmission indication information according to the format of the predetermined message.
  • multiple APs send a WUR discovery message
  • the STA after receiving the WUR discovery message sent by multiple APs, the STA sends a probe request message to multiple APs on multiple channels, requesting the details of the AP. Information and waiting for different AP feedback response messages on multiple channels.
  • the second device receives the WiFi discovery message sent by the first device according to the WiFi sending indication information in the WUR discovery message, or the fixed time of the second device directly after receiving the WUR discovery message. That is, the predetermined time) to receive the WiFi discovery message sent by the first device, which can reduce the second device to send the probe request message, which is beneficial to the WiFi interface of the second device to save power.
  • the transmission of WiFi messages is reduced, the utilization of air interface resources is saved, and the utilization of wireless air interfaces is improved.
  • the embodiment of the present application further provides a method for waking up the device, and an explanation of the related content in the embodiment may be referred to above, and details are not described herein again.
  • the method includes:
  • the first device broadcasts the wakeup message to the at least two devices in the same network as the first device by using the WiFi interface of the first device.
  • the first device is an AP or a group owner (GO) in the network.
  • the at least two devices may be STAs.
  • the AP may be a base station, a relay, or the like.
  • the STA can be specifically a mobile phone, an electric meter, a water meter, or the like.
  • the network may be a network composed of a group of devices including the first device and the at least two devices, and the at least two devices may be group members. Specifically, when the first device and the at least two devices are in the same network, at least two devices establish a connection with the first device. "At least two devices are connected to the first device" may also be described as "the first device and at least two devices are in the same BSS".
  • the wake-up message includes broadcast wake-up indication information, the broadcast wake-up indication information is used to indicate that the wake-up message is a broadcast wake-up message, and the wake-up message is used to indicate that the device that receives the wake-up message through the WUR interface wakes up its own WiFi interface, and the WUR of at least two devices.
  • the interface is in the working window of the WUR interface of the at least two devices, or the WUR interface of the at least two devices is in the working window of the WiFi interface of the first device, or the WUR interface of at least two devices is in the at least two devices.
  • An overlapping working window of the WUR interface and the WiFi interface of the first device, the working window refers to a time interval in which information can be transmitted and/or received.
  • the wake-up message is used to wake up the WiFi interface of all devices that establish a connection with the first device, or may also be described as a wake-up message for waking up the WiFi interface of all devices in the same BSS with the first device.
  • the working windows of the WUR interfaces of at least two devices may be the same or different.
  • the WUR interface in the working window can only receive information.
  • the WUR interface in the working window can both send information and receive information.
  • the WiFi interface in the working window can receive information as well as send information.
  • the first device can also broadcast the wake-up message by using the WUR interface instead of using the WiFi interface to broadcast the wake-up message.
  • the WUR interface of at least two devices is in the working window of the WUR interface of at least two devices, or the WUR interface of at least two devices is in the working window of the WUR interface of the first device, or at least two devices
  • the WUR interface is an overlapping working window of the WUR interface of at least two devices and the WUR interface of the first device, and the working window refers to a time interval in which information can be transmitted and/or received.
  • the method may further include: the first device generates a wakeup message.
  • the broadcast wakeup indication information may be device identifier information of the first device.
  • a description of the device identification information of the first device can be found below.
  • the broadcast wakeup indication information may be located in an address field of the wakeup message.
  • the wakeup message may be indicated by the address field as a broadcast wakeup message.
  • the broadcast wakeup indication information is the device identifier information of the first device
  • the address field of the wakeup message is the device identifier information of the first device
  • the wakeup message is a broadcast wakeup message.
  • the broadcast wakeup indication information does not need to occupy additional resources in the wakeup message, and resources can be saved.
  • the first device sends a WiFi multicast message to the at least two devices by using a WiFi interface of the first device at a predetermined time.
  • the multicast message can be a broadcast message or a group message.
  • the WiFi multicast message may specifically be a data message, a management message, or a control message.
  • the predetermined time is a time that the first device and the at least two devices can determine.
  • the predetermined time may be a fixed time after the first device sends the wake-up message, or the time agreed by the first device and the second device in advance, or the time required for the second device to wake up the WiFi interface, or the time specified by the standard, or, At a fixed time, or one of the times when the second device waits for a WiFi message (eg, a WiFi multicast message) to time out.
  • a WiFi message eg, a WiFi multicast message
  • the predetermined time can also be indicated in the wake up message.
  • the wakeup message may further include time indication information for indicating the predetermined time.
  • the second device receives, by using the WUR interface of the second device, a wakeup message that is sent by the first device by using the WiFi interface of the first device.
  • the second device may be any one of the at least two devices, and the second device is in the same network as the first device.
  • step 702 and step 703 is in no particular order.
  • the second device wakes up the WiFi interface of the second device according to the broadcast wakeup indication information in the wakeup message.
  • the WiFi interface in the device is in a sleep state, and the WUR interface is periodically in the working window.
  • the WUR interface receives the wake-up message, it sends a wake-up signal to the WiFi interface, and the WiFi interface is woken up, so that it is in the working window.
  • step 704 when the second device determines that the wake-up message is a broadcast wake-up message according to the broadcast wake-up indication information, the second device wakes up the WiFi interface of the second device.
  • the second device receives, by using a WiFi interface of the second device, a WiFi multicast message sent by the first device by using a WiFi interface of the first device.
  • the method may further include: the second device determining the predetermined time according to the time indication information.
  • the first device When the first device is to broadcast a WiFi message to multiple devices, a possible implementation manner is as follows: the first device needs to send a wake-up message to multiple devices in turn to wake up multiple devices, which may cause some devices to be woken up first. After the device is woken up, the working time of the WiFi interface of the device that is first awake will be longer than the working time of the WiFi interface of the device that is awake later, thereby increasing the power consumption of the device that is first awake.
  • the method provided by the embodiment of the present application adds a broadcast wakeup indication information to the wakeup message, and the device that receives the wakeup message wakes up its own WiFi interface. Since multiple devices are awakened at the same time, the possible implementation manner is as described above. In comparison, it is possible to reduce the working hours of the WiFi interfaces of some devices (ie, the aforementioned devices that are awakened first), reduce the power consumption of these devices, and reduce the signaling overhead caused by waking up multiple devices.
  • the awake message further includes other information, where the other information is at least one of the following information: first indication information, second indication information, network identifier information of the network, and the first device.
  • Device identification information the working channel used by the WiFi interface of the first device to send the WiFi multicast message;
  • the first indication information is used to indicate that the first device sends the WiFi multicast message through the WiFi interface of the first device, or the first indication information is used to indicate that the wakeup is received.
  • the device of the message receives the WiFi multicast message sent by the first device by using the WiFi interface of the first device; the second indication information is used to indicate that the first device will send the updated BSS parameter, or The second indication information is used to indicate that the BSS parameter of the network is updated.
  • the step 704 may include: the second device waking up the WiFi interface of the second device according to the broadcast wakeup indication information in the wakeup message and other information in the wakeup message.
  • the network identification information may be a group identifier.
  • the network identification information may also be one of BSS color and SSID information.
  • the group or BSS may also be referred to as a WUR network.
  • the group or BSS may also be referred to as a WiFi network.
  • the WUR network can be identified by the ID or name of the WUR network
  • the WiFi network can be identified by the ID or name of the WiFi network.
  • the device identification information of the first device may be an ID of the first device, a MAC address of the first device, a WUR interface address of the first device, an AID, a TIM, and the like.
  • the network identifier information is a first identifier or a second identifier, where the second identifier is an identifier generated according to the first identifier, and the number of bits occupied by the second identifier is smaller than the number of bits occupied by the first identifier. .
  • the second identification may be generated based on part or all of the information of the first identification.
  • the first identifier is an SSID
  • the second identifier may be a partial value of the SSID, or a hash value that performs a hash operation based on the SSID. In this case, using the second identifier in the wake-up message can save transmission resources compared to using the first identifier.
  • the device identifier information of the first device is a third identifier or a fourth identifier, where the fourth identifier is an identifier generated according to the third identifier, and the number of bits occupied by the fourth identifier is smaller than the third identifier. The number of bits occupied.
  • the fourth identifier may be generated based on part or all of the information of the third identifier.
  • the third identifier is a MAC address
  • the fourth identifier may be a partial value of the MAC address, or a hash value of performing a hash operation based on the MAC address. . In this case, using the fourth identifier in the wake-up message can save transmission resources compared to using the third identifier.
  • the second device determines that the wakeup message is a broadcast wakeup message, if the other information includes at least the network identifier information of the network, if the network identifier information included in the wakeup message matches the network identifier information recorded by the second device, The second device and the device that sends the wake-up message are in the same network, and the second device wakes up the WiFi interface of the second device. Otherwise, the second device does not wake up the WiFi interface of the second device.
  • the second device determines that the wakeup message is a broadcast wakeup message, if the other information includes at least the device identifier information of the first device, if the device identifier information of the first device included in the wakeup message is sent and the second device records the transmission
  • the second device wakes up the WiFi interface of the second device, otherwise, the second device does not wake up the WiFi interface of the second device.
  • the device identification information recorded by the second device may be the identification information of the AP accessed by the second device.
  • the above exemplarily shows two ways of determining whether the second device wakes up the WiFi interface of the second device, and the second device can also determine whether to wake up the second according to the broadcast wakeup indication information and the plurality of other information.
  • the WiFi interface of the device is not described in the embodiment of the present application.
  • the other information includes at least a working channel used by the WiFi interface of the first device to send the WiFi multicast message
  • the method further includes: adjusting, by the second device, the WiFi of the second device The working channel of the interface sends the working channel used by the WiFi multicast message to the WiFi interface of the first device, so that the second device successfully receives the WiFi multicast message.
  • the other information includes at least the second indication information, where the WiFi multicast message includes the updated BSS parameter.
  • the second device updates the BSS parameter according to the updated BSS parameter included in the WiFi multicast message.
  • the second device may update the BSS parameters according to the updated BSS parameters in the WiFi multicast message, so that the second device can better use the service provided by the BSS, receive the message sent by the device in the BSS, synchronize with the first device, and the like.
  • the updated BSS parameters include at least one of the following information: updated time information for synchronization of devices within the BSS, updated WUR interface of the first device, and/or wake window information of the WiFi interface, updated The wake-up window information of the WUR interface and/or the WiFi interface of the second device, the network identification information of the updated BSS, the updated address information of the first device, the updated heartbeat information, and the role of the updated role of the first device in the BSS Information, updated service information that the BSS can provide, updated working channel information of the WiFi interface of the first device, updated working channel information of the WUR interface of the first device, updated capability information of the first device, updated
  • the BSS supports transmission rate information, updated BSS security (RSN, robust security network, robust security network) parameters, and the like.
  • the WiFi multicast message in the foregoing embodiment may carry at least one of the following information: at least one of a BSS parameter, a quality of service (QoS), an updated BSS parameter, and an updated QoS parameter. .
  • QoS quality of service
  • the second device receives the WiFi multicast message sent by the first device through the WiFi interface, and adjusts or records the corresponding BSS parameter of the second device according to the information carried in the WiFi multicast message (this part can be referred to above, and details are not described herein again. ), QoS, etc. at least one of them.
  • the names of some messages may be different between the above embodiments, the name of the message is only a reference to the object, and various names may be used to refer to the same object, so that the messages have the same or similar functions. , you can understand each other.
  • the communication device includes corresponding hardware structures and/or software modules for performing the respective functions in order to implement the above functions.
  • the present application can be implemented in a combination of hardware or hardware and computer software in combination with the elements and algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present application.
  • the embodiment of the present application may divide the function module into the communication device according to the foregoing method example.
  • each function module may be divided according to each function, or two or more functions may be integrated into one processing module.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of the module in the embodiment of the present application is schematic, and is only a logical function division, and the actual implementation may have another division manner.
  • FIG. 8 shows a possible structural diagram of the device involved in the above embodiment, and the device 80 may be the first device or the second device, see FIG.
  • the device 80 may include a processing unit 801, a WiFi unit 802, and a WUR unit 803, and may further include a storage unit 804.
  • the processing unit 801 is configured to perform control management on the action of the first device.
  • the processing unit 801 is configured to support the first device to perform steps 501-503 in FIG. 5, or in FIG. Steps 601-603, or steps 701-702 in FIG. 7, and/or actions performed by the first device in other processes described in the embodiments of the present application.
  • the WiFi unit 802 and the WUR unit 803 are configured to support communication of the first device with other network devices, for example, with the second device of FIG. 5, FIG. 6, or FIG.
  • the storage unit 804 is configured to store program codes and data of the first device.
  • the processing unit 801 is configured to perform control management on the action of the second device.
  • the processing unit 801 is configured to support the second device to perform steps 504-506 in FIG. 5, or in FIG. Steps 604-606, or steps 703-705 in FIG. 7, and/or actions performed by the second device in other processes described in the embodiments of the present application.
  • the WiFi unit 802 and the WUR unit 803 are configured to support the second device to communicate with other network devices, for example, with the first device of FIG. 5, FIG. 6, or FIG.
  • the storage unit 804 is configured to store program codes and data of the second device.
  • the processing unit 801 can be a processor or a controller
  • the WiFi unit 802 can be a main communication interface
  • the main communication interface is a WiFi interface
  • the WUR unit 803 can be an auxiliary wake-up interface
  • the auxiliary wake-up interface is a WUR interface.
  • Storage unit 804 can be a memory.
  • the processing unit 801 is a processor
  • the WiFi unit 802 is a main communication interface
  • the WUR unit 803 is an auxiliary wake-up interface
  • the storage unit 804 is a memory
  • the device involved in the embodiment of the present application may be the device shown in FIG.
  • the processor 403 is configured to perform control management on the action of the first device.
  • the processor 403 is configured to support the first device to perform steps 501-503 in FIG. 5, or Steps 601-603 in FIG. 6, or steps 701-702 in FIG. 7, and/or actions performed by the first device in other processes described in the embodiments of the present application.
  • the primary communication interface 402 and the secondary wakeup interface 401 are used to support communication of the first device with other network devices, for example, with the second device of FIG. 5, FIG. 6, or FIG.
  • the memory 404 is used to store program codes and data of the first device.
  • the processor 403 is configured to perform control management on the action of the second device.
  • the processor 403 is configured to support the second device to perform steps 504-506 in FIG. 5, or Steps 604-606 in FIG. 6, or steps 703-705 in FIG. 7, and/or actions performed by the second device in other processes described in the embodiments of the present application.
  • the primary communication interface 402 and the secondary wakeup interface 401 are configured to support communication of the second device with other network devices, for example, with the first device of FIG. 5, FIG. 6, or FIG.
  • the memory 404 is used to store program codes and data of the second device.
  • the processing unit or processor of the communication device involved herein wakes up the WiFi unit or the WiFi interface of the communication device according to the broadcast wakeup indication information in the wakeup message, which may be the processing unit or the processor of the communication device directly or indirectly (The WiFi unit or the WiFi interface of the communication device can be awake as if it were through the WUR unit or WUR interface of the communication device.
  • the embodiment of the present application also provides a computer readable storage medium, including instructions, when executed on a computer, causing the computer to perform any of the above methods.
  • the embodiment of the present application also provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform any of the above methods.
  • the above embodiments it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • a software program it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer program instructions When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present application are generated in whole or in part.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transmission to another website site, computer, server or data center via wired (eg coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device that includes one or more servers, data centers, etc. that can be integrated with the 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.
  • a magnetic medium eg, a floppy disk, a hard disk, a magnetic tape
  • an optical medium eg, a DVD
  • a semiconductor medium such as a solid state disk (SSD)
  • At least one means one or more, and "a plurality” means two or more.
  • At least one of the following or a similar expression thereof refers to any combination of these items, including any combination of a single item or a plurality of items.
  • at least one of "a, b, or c" may mean: a, b, c, ab ( That is, a and b), ac, bc, or abc, wherein a, b, and c may be single or plural.
  • the size of the serial numbers of the above processes does not mean the order of execution, and some or all of the steps may be performed in parallel or sequentially, and the execution order of each process shall be
  • the intrinsic logic is determined without any limitation on the implementation process of the embodiments of the present application.

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

Abstract

La présente invention concerne un procédé et un appareil de réveil d'un dispositif, destinés à être utilisés pour réduire davantage la consommation d'énergie d'un terminal doté d'une interface WUR et d'une interface Wi-Fi. Le procédé comprend les étapes suivantes : un premier dispositif diffuse, par l'intermédiaire de son interface Wi-Fi, un message de réveil destiné à deux dispositifs ou plus dans un réseau où se trouvent le premier dispositif et ces deux dispositifs ou plus, le premier dispositif étant un point d'accès (AP) dans le réseau ou un GO principal, le message de réveil incluant des informations d'indication de réveil par diffusion, les informations d'indication de réveil par diffusion servant à indiquer que le message de réveil est un message de réveil diffusé, et le message de réveil permettant de donner à un dispositif qui le reçoit par le biais de l'interface WUR l'ordre de réveiller l'interface Wi-Fi ; et le premier dispositif envoie un message de multidiffusion Wi-Fi aux deux dispositifs ou plus à un moment spécifié par l'intermédiaire de l'interface Wi-Fi du premier dispositif. Cette invention se rapporte au domaine technique des communications.
PCT/CN2018/079671 2017-03-20 2018-03-20 Procédé et appareil de réveil d'un dispositif WO2018171591A1 (fr)

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