WO2018171049A1 - Procédé, appareil et dispositif de détermination de mécanisme de latence - Google Patents

Procédé, appareil et dispositif de détermination de mécanisme de latence Download PDF

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Publication number
WO2018171049A1
WO2018171049A1 PCT/CN2017/087246 CN2017087246W WO2018171049A1 WO 2018171049 A1 WO2018171049 A1 WO 2018171049A1 CN 2017087246 W CN2017087246 W CN 2017087246W WO 2018171049 A1 WO2018171049 A1 WO 2018171049A1
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Prior art keywords
message
domain
indication information
information
wur
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PCT/CN2017/087246
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English (en)
Chinese (zh)
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韩云博
丁志明
李小仙
杜振国
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华为技术有限公司
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Priority to CN201780049028.6A priority Critical patent/CN109565749B/zh
Publication of WO2018171049A1 publication Critical patent/WO2018171049A1/fr

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    • 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 communication technologies, and in particular, to a method, device, and device for determining a sleep mechanism.
  • WLAN Wireless Local Area Network
  • WUR Wake Up Radio
  • WUR wireless communication devices
  • Wi-Fi Wireless Fidelity
  • WUR can also introduce a sleep mechanism.
  • the WUR sleep mechanism means that the WUR is periodically turned on or off.
  • a WUR sleep cycle is 100ms, of which 30ms is used for the WUR wake-up listening channel to receive the WUR signal, and the WUR is put into sleep for the remaining 70ms to save energy.
  • the WUR wake-up window refers to the time period during which the WUR wakes up to listen to the channel to receive the WUR signal; the length of the WUR wake-up window refers to the length of time that the WUR wakes up in each sleep cycle, such as 30 ms; the WUR sleep window refers to the time period during which the WUR enters sleep.
  • the WUR wake-up cycle refers to the interval at which the WUR periodically wakes up, such as 100ms.
  • the present application provides a method, device and device for determining a dormancy mechanism, which can enable a wireless communication device in different networks to stagger the awake window for sending a wake-up message, so as to reduce the collision probability of sending wake-up messages between different networks.
  • the embodiment of the present application provides a method for determining a dormancy mechanism, where a first device generates a wakeup message, where the wakeup message includes a preamble, where the preamble includes first indication information, second indication information, and third indication information.
  • the first indication information includes a wakeup message indication
  • the second indication information is used to indicate that the first device belongs to the first network
  • the third indication information is used to indicate that the receiving device in the first network receives
  • the first sleep mechanism information used by the wake-up message
  • the first sleep mechanism information is used by the receiving device to determine a first wake-up window for receiving the wake-up message;
  • the first device sends the wake-up message, so that the second device in the second network sets the second dormant mechanism information for the device in the second network according to the preamble.
  • the first indication information, the second indication information, and the third indication information are set in the preamble of the wake-up message to indicate that the message is a wake-up message, a network identifier of a network where the sender is located, and a sleep of a network where the sender is located.
  • Mechanism information or the like such that the wireless communication device of the other network that receives the wake-up message can acquire the first wake-up window in the sleep mechanism information of the wake-up message sent in the first network, thereby waking up the second wake-up of the sending wake-up message of the respective network.
  • the window is staggered from the first awake window to reduce the probability of collisions between different networks sending wake-up messages.
  • the first dormancy mechanism information includes one or more of the following information:
  • the receiving device receives a start time of the wakeup window of the wakeup message.
  • the first dormancy mechanism information may be set in multiple implementation manners, so that the wireless communication device can obtain the wakeup window in the first dormancy mechanism in multiple manners, and the implementation method is flexible and changeable, and can be adapted to different Network needs.
  • the pilot includes an L-STF domain, an L-LTF domain, an L-SIG domain, and other functional domains, where the other functional domains are used to carry the first indication information, the first Two indication information and the third indication information.
  • the other functional domain is a SIG domain that is defined in the first protocol, and the length of the SIG domain is the length of one or two OFDM symbols.
  • the other functional domain is a newly defined SIG domain
  • the length of the newly defined SIG domain is the length of one OFDM symbol.
  • the wakeup message further includes a load
  • the bandwidth of the pilot is greater than a bandwidth of the load
  • the pilot is located before the load.
  • the wakeup message is a WUR message.
  • the overlapping time of the second awake window in the second sleep mechanism information and the first awake window is less than a preset threshold.
  • the collision probability of sending the awake message between different BSSs may be reduced, especially when the preset threshold is set sufficiently small, even It is possible to avoid conflicts when sending wake-up messages between different BSSs.
  • the embodiment of the present application provides a method for determining a dormancy mechanism, where the method includes:
  • the second device receives the wakeup message sent by the first device, where the first device belongs to the first network, the second device belongs to the second network, the wakeup message includes a preamble, and the first indication includes the first indication information, And the third indication information, the first indication information includes a wakeup message indication, the second indication information is used to indicate that the first device belongs to the first network, and the third indication information is used to indicate Receiving, by the receiving device in the first network, first dormancy mechanism information used by the wakeup message; the first dormancy mechanism information is used to determine that the receiving device receives the first wakeup window of the wakeup message;
  • the second device sets second sleep mechanism information for the device in the second network according to the pilot.
  • the first dormancy mechanism information includes one or more of the following information:
  • the receiving device receives a start time of the wakeup window of the wakeup message.
  • the pilot includes an L-STF domain, an L-LTF domain, an L-SIG domain, and other functions.
  • the other functional domain is configured to carry the first indication information, the second indication information, and the third indication information.
  • the other functional domain is a SIG domain that is defined in the first protocol, and the length of the SIG domain is the length of one or two OFDM symbols.
  • the other functional domain is a newly defined SIG domain
  • the length of the newly defined SIG domain is the length of one OFDM symbol.
  • the wakeup message further includes a load
  • the bandwidth of the pilot is greater than a bandwidth of the load
  • the pilot is located before the load.
  • the wakeup message is a WUR message.
  • the overlapping time of the second awake window in the second sleep mechanism information and the first awake window is less than a preset threshold.
  • the embodiment of the present application provides a device for determining a dormancy mechanism, where the device is a first device, including:
  • a generating module configured to generate a wake-up message, where the wake-up message includes a first guide, the first indication information, the second indication information, and the third indication information, where the first indication information includes a wake-up message indication, where The second indication information is used to indicate that the first device belongs to the first network, and the third indication information is used to indicate that the receiving device in the first network receives the first dormant mechanism information used by the wakeup message;
  • the first sleep mechanism information is used by the receiving device to determine to receive a first wakeup window of the wakeup message;
  • a sending module configured to send the wake-up message, so that the second device in the second network sets the second dormant mechanism information for the device in the second network according to the preamble.
  • the first dormancy mechanism information includes one or more of the following information:
  • the receiving device receives a start time of the wakeup window of the wakeup message.
  • the pilot includes an L-STF domain, an L-LTF domain, an L-SIG domain, and other functional domains, where the other functional domains are used to carry the first indication information, the first Two indication information and the third indication information.
  • the other functional domain is a SIG domain that is defined in the first protocol, and the length of the SIG domain is the length of one or two OFDM symbols.
  • the other functional domain is a newly defined SIG domain
  • the length of the newly defined SIG domain is the length of one OFDM symbol.
  • the embodiment of the present application provides a device for determining a dormancy mechanism, where the device is a second device, including:
  • a receiving module configured to receive a wakeup message sent by the first device, where the first device belongs to the first network, the second device belongs to the second network, the wakeup message includes a preamble, and the first indication information is included in the preamble
  • the second indication information includes a wakeup message indication, the second indication information is used to indicate that the first device belongs to the first network, and the third indication information is used by The first dormancy mechanism information used by the receiving device in the first network to receive the wakeup message; the first dormancy mechanism information is used to determine the receiving Receiving, by the device, a first waking window of the wakeup message;
  • a setting module configured to set second sleep mechanism information for the devices in the second network according to the pilot.
  • the first dormancy mechanism information includes one or more of the following information:
  • the receiving device receives a start time of the wakeup window of the wakeup message.
  • the pilot includes an L-STF domain, an L-LTF domain, an L-SIG domain, and other functional domains, where the other functional domains are used to carry the first indication information, the first Two indication information, and the third indication information.
  • the other functional domain is a SIG domain that is defined in the first protocol, and the length of the SIG domain is the length of one or two OFDM symbols.
  • the other functional domain is a newly defined SIG domain
  • the length of the newly defined SIG domain is the length of one OFDM symbol.
  • an embodiment of the present application provides an apparatus, including a processor and a memory.
  • the memory is for storing instructions for executing the memory stored instructions, and when the processor executes the instructions stored by the memory, the apparatus is configured to perform any of the implementations of the first aspect or the second aspect The method described in the example.
  • FIG. 1 is a schematic diagram of a WUR sleep mechanism in the prior art
  • FIG. 2 is a schematic diagram of a WUR wake-up window used by a wireless transceiver in a plurality of BSSs in the prior art
  • FIG. 3 is a schematic diagram of a communication scenario for reducing power consumption of a terminal according to an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of a format of a WUR message
  • FIG. 5 is a schematic diagram of a module of a wireless communication device provided by the present application.
  • FIG. 6 is a schematic diagram of an application scenario of a method for determining a sleep mechanism according to an embodiment of the present disclosure
  • FIG. 7 is a flowchart of a method for determining a sleep mechanism according to an embodiment of the present disclosure
  • FIG. 8 is a flowchart of a method for determining a sleep mechanism according to another embodiment of the present disclosure.
  • FIG. 9 is a block diagram of a determining apparatus for a sleep mechanism according to an embodiment of the present disclosure.
  • FIG. 10 is a block diagram of a determining apparatus for a sleep mechanism according to another embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of a device according to an embodiment of the present disclosure.
  • FIG. 12 is a schematic structural diagram of a wireless communication device according to an embodiment of the present disclosure.
  • Wi-Fi Wireless Fidelity
  • terminals such as workstations, STAs, and stations do not receive and receive messages (such as the No data phase). A large part of the energy is wasted in the listening channel when there is no reception signal.
  • IEEE Institute of Electrical and Electronic Engineers
  • LP-WUR Low Power Wake Up Radio
  • FIG. 3 is a schematic diagram of a communication scenario for reducing power consumption of a terminal according to an embodiment of the present disclosure.
  • the terminal is equipped with a WUR in addition to a wireless transceiver.
  • the AP includes at least a wireless transceiver; optionally, a WUR. When the wireless transceiver of the terminal enters deep sleep, the low-power WUR can wake up and start working.
  • the AP When the AP needs to communicate with the terminal equipped with the WUR and the wireless transceiver, the AP sends a WUR message to the WUR, such as a Wake Up Packet (WUP), and the WUR correctly receives the wireless transceiver that wakes up the terminal after sending the WUP to itself.
  • WUR can then go to sleep and the AP communicates with the awakened wireless transceiver.
  • the terminal's wireless transceiver After the terminal's wireless transceiver communicates with the AP, it will go to sleep.
  • the WUR wakes up and starts to listen to whether there is a WUP sent to itself to wake up the wireless transceiver again.
  • the wireless communication device may send a WUR message using different interfaces or modules.
  • the wireless communication device (such as an AP or a terminal) may use the wireless transceiver to send a WUR message.
  • WUR messages can also be sent via a separate WUR transmitter.
  • a wireless communication device transmits a WUR message using a wireless transceiver, the transmission capability of the WUR is not necessary. WUR is not required when the AP does not consider saving energy.
  • Wireless communication devices using WUR can reduce power consumption compared to directly using wireless transceivers, mainly because WUR messages are received and decoded much more than Wi-Fi messages (ie, traditional 802.11 messages, such as 802.11b/a/g/ac messages).
  • Wi-Fi messages ie, traditional 802.11 messages, such as 802.11b/a/g/ac messages.
  • Wi-Fi messages ie, traditional 802.11 messages, such as 802.11b/a/g/ac messages.
  • Wi-Fi messages ie, traditional 802.11 messages, such as 802.11b/a/g/ac messages.
  • Wi-Fi messages ie, traditional 802.11 messages, such as 802.11b/a/g/ac messages.
  • Wi-Fi messages ie, traditional 802.11 messages, such as 802.11b/a/g/ac messages.
  • Wi-Fi messages ie, traditional 802.11 messages, such as 802.11b/a/g/ac messages.
  • the receiving end determines whether or not the information carried by the signal is received by the presence or absence of energy. For example, when there is energy, the indication is 1 and when there is no energy, the indication is 0.
  • the Wi-Fi message uses both phase shift (Phase Shift Keying, PSK) modulation and Orthogonal Frequency Division Multiplexing (OFDM) modulation, and the receiver must perform reverse fast repetition.
  • Complex signal processing operations such as Inverse Fast Fourier Transform (IFFT), which consume a lot of energy.
  • IFFT Inverse Fast Fourier Transform
  • the frame structure of the WUR message may be divided into a preamble and a payload, where the pilot bandwidth is greater than the payload bandwidth.
  • the preamble is an 802.11 preamble, that is, a preamble sequence that can be parsed by a conventional 802.11 device, and is transmitted over a bandwidth of 20 MHz or 20 MHz integer multiples (such as 40 MHz, 80 MHz, or 160 MHz), so that the traditional 802.11 device can be determined according to the pilot sequence.
  • the current packet is a Wi-Fi message for compatibility with a legacy 802.11 device, and the payload of the Wi-Fi message is actually a WUR message.
  • the 802.11 pilot may include an L-STF (non-HT Short Training field), an L-LTF (non-HT Long Training field), and an L-SIG (non-HT SIGNAL field), where the L-STF may be used.
  • L-STF non-HT Short Training field
  • L-LTF non-HT Long Training field
  • L-SIG non-HT SIGNAL field
  • the L-LTF can be used for channel estimation at the receiving end, accurate frequency offset estimation, etc.
  • the L-SIG can be used to indicate the pilot transmission rate and Information such as the time occupied by the channel.
  • the traditional 802.11 device that receives the 802.11 pilot can obtain the time when the WUR message occupies the channel according to the information such as the Length field in the 802.11 pilot, and does not attempt to access the channel during this time to avoid interfering with the WUR message in the transmission.
  • the Length domain information is 12 bits, indicating the number of bytes that the message data portion needs to transmit.
  • the remaining time required to transmit the WUR message can be calculated.
  • the payload is a payload (Wyload) portion of the WUR message, and a modulation method with low complexity is used, such as OOK or Binary Amplitude Shift Keying (2ASK), and uses a 1 MHz channel, a 2 MHz channel, a 4 MHz channel, a 5 MHz channel, and the like. Narrowband transmission allows the receiver to further reduce power consumption.
  • the Payload of the WUR message includes the Wake-Up Preamble and the Medium Access Control (MAC) part.
  • the Wake-Up Preamble functions similarly to the traditional 802.11 pilot and can be used to identify the WUR signal by the WUR; the MAC part and the Wi-Fi message.
  • the MAC part is similar, and may include a MAC Header, a Frame Body, and a Frame Check Sequence (FCS).
  • the MAC Header carries at least the identifier of the receiving end; the Frame Body can carry some indications, control information, and the like; the FCS belongs to the check information. Used to determine if the message received an error.
  • the WUR can also introduce a sleep mechanism, and the sleep mechanism can refer to the content shown in FIG. 1 in the background art.
  • the sleep mechanism can refer to the content shown in FIG. 1 in the background art.
  • the conflict may be that the wireless communication device in the first BSS and the second BSS may not correctly demodulate the messages due to the simultaneous transmission of the WUR message, and the WUR message fails to be sent; or the wireless in the first BSS
  • the wireless communication device in the second BSS that hears the message needs to wait until the WUR message of the first BSS is sent to complete the channel to send the second BSS even if there is a message to be sent.
  • the message if the WUR wakeup window of the WUR in the second BSS has ended or is close to the end, the wireless communication device in the second BSS may have no chance or sufficient time to contend for the channel to send the message.
  • the WUR message may include at least a WUP wake-up frame and a WUR beacon frame, and the WUP wake-up frame may be used to wake up the wireless transceiver at the receiving end, and the WUR beacon frame may provide synchronization, maintain network connection, and the like;
  • WUP can be used to refer to WUR messages.
  • the broad sense of use that is, the WUP can refer to a WUR message.
  • awakening a wireless communication device as described in the present application refers to a wireless transceiver that wakes up the wireless communication device.
  • the method for determining the dormancy mechanism provided by the present application may be applied to a Wireless Local Area Network (WLAN).
  • WLAN may include one or more Basic Service Sets (BSSs), and a network in a basic service set.
  • BSSs Basic Service Sets
  • Nodes include APs and terminals.
  • Each basic service set may contain one AP and multiple terminals associated with the AP.
  • the AP can be an access point or a hotspot.
  • the AP is an access point for mobile users to enter the wired network. It is mainly deployed in the home, inside the building, and inside the campus. The typical coverage radius is tens of meters to hundreds of meters. Of course, it can also be deployed outdoors.
  • An AP is a bridge between the Internet and a wireless LAN. Its main function is to connect the various wireless network clients together and then connect the wireless network to the Internet.
  • the AP may be a terminal with a Wi-Fi chip or a network device.
  • the terminal may be a user equipment (UE), a mobile station (MS), a mobile terminal, a computer, a microcomputer, or the like, or may be a 5G terminal.
  • the terminal may be a mobile phone (or "cellular" phone), a mobile computer, a computer with a mobile terminal, a smart watch, etc., for example, the terminal may also be portable, pocket-sized, handheld, built-in or on-board Mobile devices that exchange voice and/or data with wireless access devices. This application is not limited thereto.
  • the terminal further includes a terminal with wired access with multiple bearer features.
  • the wireless communication device in the following description is simply referred to as a device.
  • the wireless communication device may further include a memory, a processor, and the like.
  • the terminal may include at least a first receiver (such as a WUR) and a second transceiver (such as a wireless transceiver);
  • the AP may include at least a second transceiver (such as Wireless transceiver), optionally, the AP may also include a first receiver (such as WUR).
  • the communication between the two wireless communication devices can be divided into the transmission of the WUR message and the transmission of the Wi-Fi message, wherein the two wireless communication devices respectively transmit the WUR message through the first interface (such as the WUR interface) through the second
  • the interface (such as a wireless transceiver interface) performs Wi-Fi message transmission, that is, the first interface is an interface for WUR message transmission; the second interface is an interface for Wi-Fi message transmission.
  • the first receiver and the second transceiver may be independent physical entities, such as two physically independent modules, or may be logical concepts, not physical entities, such as integrated in the same physical entity.
  • the first interface and the second interface may be logical concepts, ie not physical entities.
  • the first receiver may receive the WUR message through the first interface, and wake up the second transceiver of the wireless communication device, if the first receiver has the capability of sending a WUR message through the first interface, such as sending a wake-up frame (Wake Up Packet, WUP), the first receiver can be used to send a WUR message through the first interface.
  • the first receiver can also be referred to as a first transceiver.
  • the second transceiver is a wireless transceiver, ie a Wi-Fi module, or an 802.11 primary transceiver module, which can be used to receive or transmit Wi-Fi messages through the second interface.
  • the second transceiver does not necessarily need to have the capability of transmitting the WUR message through the first interface.
  • the second transceiver needs to have the capability of sending the WUR message through the first interface, which can be used to send the WUR message through the first interface. It should be noted that, for the AP, if the first receiver does not have the capability of transmitting the WUR message through the first interface, the AP may not include the first receiver.
  • the terminal includes a first receiver (such as WUR) and a second transceiver (such as a wireless transceiver), and the AP includes a second transceiver (such as a wireless transceiver) as an example, and assumes that:
  • the second transceiver is configured to send and receive Wi-Fi messages through the second interface, and send the WUR message through the first interface, where the second transceiver of the terminal is configured to send and receive Wi-Fi messages through the second interface, where the first receiver of the terminal is used to pass the first interface Receive WUR messages.
  • the description of the module and the interface related to the sending of the WUR message may be modified accordingly. One by one.
  • FIG. 6 is a schematic diagram of an application scenario of a method for determining a dormancy mechanism according to an embodiment of the present disclosure.
  • the scenario includes a first network 1 and a second network 2, where the first device 3 belongs to the first network 1, and the second device 4 belongs to the second network 2.
  • the first network may be the first BSS
  • the second network may be the second BSS
  • the first device may be the AP1
  • the second network may be the AP2
  • the AP1 is in the first BSS
  • the AP2 is in the second BSS
  • a BSS and a second BSS are mutually overlapping basic service sets (OBSS, and both AP1 and AP2 are within the signal coverage of the other party.
  • OBSS basic service sets
  • the WLAN system (Wi-Fi system) involves communication between the AP1 and the terminal WUR through the first interface, and the wireless transceiver of the AP1 and the wireless transceiver of the AP2 communicate through the second interface.
  • the communication between the AP1 and the terminal WUR may include: the wakeup message sent by the AP1 to the associated terminal WUR is used by the AP1 to wake up the wireless transceiver in the terminal, or carry beacon information, and the beacon information is some and the Wi -Fi network related information, such as time information and device capability information, are usually carried in beacon frames.
  • the communication from the AP1 to the AP2 may include: the AP2 receives the pilot part of the wakeup message sent by the AP1, to obtain the WUR sleep mechanism information in the BSS where the AP1 is located.
  • FIG. 7 is a flowchart of a method for determining a sleep mechanism according to an embodiment of the present disclosure. As shown in FIG. 7 , the method is based on the scenario shown in FIG. 6 , and the method includes the following steps:
  • Step 101 The first device generates a wakeup message.
  • the waking message includes a first indicator, the first indication information, the second indication information, and the third indication information, where the first indication information includes a wakeup message indication, and the second indication information is used to indicate that the first device belongs to the first network.
  • the third indication information is used to indicate that the receiving device in the first network receives the first sleep mechanism information used by the wake-up message; the first sleep mechanism information is used by the receiving device to determine the first wake-up window that receives the wake-up message.
  • the wake-up message is used to wake up all or part of other wireless communication devices in the first network.
  • the wakeup message indication may be displayed or implicit.
  • an identifier may be set in an indication bit of the wakeup message to indicate that the message is a wakeup message, for example,
  • the first indication information is a special FCS value, or the first indication information is one or more predefined bit value, which is used to indicate that the message is a wake-up message.
  • the preamble is an OFDM symbol, and the BPSK modulation mode is adopted.
  • the receiving device receives the OFDM symbol in the BPSK modulation mode, and there is no other conventional bandwidth (20 MHz).
  • the OFDM symbol is used, the message is a wake-up message by default.
  • the second indication information may be a network identifier of the first network.
  • the wake-up message may also be used to carry beacon information, which is information related to the first network, such as time information, device capabilities, and the like.
  • the wakeup message is a WUR message.
  • the first dormancy mechanism information includes one or more of the following: a wakeup period in which the receiving device receives the wakeup message; a length of the wakeup window in which the receiving device receives the wakeup message; and a start of the wakeup window in which the receiving device receives the wakeup message. time.
  • Step 102 The first device sends a wakeup message.
  • the first device may send a wake-up message to one or more wireless communication devices in the first network to wake up all or part of other wireless communication devices in the first network.
  • Step 103 The second device sets second sleep mechanism information according to the leader as a device in the second network.
  • the second device is a wireless communication device in the second network, and the second device may receive the leading part of the wakeup message sent by the first device in the first network, and determine according to the first indication information in the pilot.
  • the message is a wake-up message, and the message is determined not to be sent to the user according to the second indication information, and the first sleep mechanism information is obtained from the third indication information, and the wireless communication in the second network is performed according to the first sleep mechanism information.
  • the device sets the second sleep mechanism information.
  • the wake-up message sent by the first device in the first network may be used as the first wake-up message
  • the wake-up message sent by the second device in the second network may be used as the second wake-up message
  • the second sleep mechanism information is second.
  • the receiving device in the network receives the sleep mechanism information used by the second wake-up message
  • the second sleep mechanism information is used by the receiving device in the second network to determine a second wake-up window for receiving the second wake-up message.
  • the second dormancy mechanism information also includes one or more of the following information: the awake period in which the receiving device receives the second awake message in the second network; and the receiving device in the second network receives the awake window of the second awake message Length; the start time of the awake window in which the receiving device receives the second wake-up message in the second network.
  • the determining method of the dormant mechanism provided by the embodiment of the present application, the first indication information, the second indication information, and the third indication information are set in the preamble of the wakeup message, to indicate that the message is a wakeup message, a network identifier of a network where the sender is located, And the dormancy mechanism information of the network where the sending end is located, so that the wireless communication device of the other network that receives the wake-up message can obtain the first wake-up window in the dormant mechanism information of sending the wake-up message in the first network, thereby
  • the second wake-up window that sends the wake-up message is staggered from the first wake-up window to reduce the probability of collisions between different networks sending wake-up messages.
  • the overlapping time of the second awake window and the first awake window in the second sleep mechanism information is less than a preset threshold.
  • the preset threshold is a preset time threshold.
  • the preset threshold may be 1 ms, 2 ms, etc., and can be set by a person skilled in the art according to actual needs.
  • the overlapping time of the second awake window and the first awake window is less than a preset threshold, the collision probability of sending the awake message between different BSSs may be reduced.
  • the preset threshold is set enough, even different BSSs may be avoided. A conflict when sending a wakeup message.
  • the wake-up message may be a WUR message
  • the frame structure of the WUR message includes a preamble and a payload, where the preamble bandwidth is greater than the first payload bandwidth, and the preamble is located before the load.
  • the pilot includes an L-STF domain, an L-LTF domain, an L-SIG domain, and other functional domains. The other functional domains are used to carry the first indication information, the second indication information, and the third indication information.
  • the other functional domain is a SIG domain defined in the first protocol, and the length of the SIG domain is one or two OFDM symbols.
  • the first protocol includes different versions of the 802.11 protocol.
  • the length and content of other functional domains may be different.
  • the other functional domain is a newly defined SIG domain
  • the length of the newly defined SIG domain is the length of one OFDM symbol.
  • the SIG domain is usually used to carry some indication information, such as transmission rate, modulation mode, bandwidth, and whether the message is uplink or downlink. It should be noted that the SIG domain length, content, name, and the like may be different for different versions of the 802.11 protocol or different types of Wi-Fi messages.
  • the payload of the WUR message can be demodulated by the WUR, which is the same as the payload portion of the WUR message described above, for waking up the wireless transceiver of the wireless communication device, or carrying beacon information.
  • the SIG domain that is in the traditional 802.11 protocol may be used, and the first indication information, the second indication information, and the third indication information may be carried in the reserved bits of the defined SIG domain, or may be used in the SIG.
  • the indicator bits of the field are redefined.
  • Table 1 and Table 1a to Table 1e are respectively WUR message frame formats provided by an embodiment of the present application.
  • the SIG domain in the pilot is an HT-SIG domain, and the HT-SIG domain is defined in the 802.11n protocol.
  • the SIG domain can be identified and interpreted by 802.11 devices that support the 802.11n protocol.
  • the HT-SIG domain has a total of 48 bits (bits) of indication bits, and the transmission duration is 8 us.
  • the HT-SIG can be further divided into two parts, HT-SIG1 and HT-SIG2, each with an indication bit of 24 bits.
  • the HT-SIG1 indicator bit map is viewed from the Least Significant Bit (LSB) to the Most Significant Bit (MSB), and the B0 to B6 bits indicate the coding.
  • Modulation and Coding Scheme MCS
  • B7 bit indicates the message bandwidth
  • B8 to B23 bits are HT Length, indicating the remaining length of the message ( The unit is byte, that is, the length of the MAC part);
  • the HT-SIG2 indication bit diagram can indicate whether to use the STBC coding mode, whether to use a short GI (Guard Interval), whether to use FEC coding, and checksum.
  • the code Cyclic Redundancy Check, CRC, used to verify the HT-SIG domain), the tail padding (Tail Bits), etc., will not be repeated here.
  • the MCS occupies the 7bits indicator. Up to 128 preset values can be set. For example, the preset value is 0 to 127. Each preset value can have different meanings. Specifically, the preset values used in the 802.11n protocol are 0 to 76, and the preset values reserved are 77 to 127.
  • one of the preset values reserved by the MCS is used to indicate that the message is a WUR message using the frame structure. If the MCS preset value is 100, the B0 to B6 bits of the HT-SIG1 may be set to 1101101 to indicate this The message is a WUR message.
  • the 802.11ba device (the wireless communication device supporting the 802.11ba protocol) can identify the message as a WUR message by using the preset value of the MCS in the HT-SIG domain. In this case, we can redefine the HT- The preset value of all or part of the indicator bits other than the MCS and CRC in the SIG field is used to indicate some information useful to the 802.11ba device.
  • the B8 to B23 bits in the HT-SIG1 shown in Table 1c and the B0 to B9 bits in the HT-SIG2 shown in Table 1e can also be used as potential usable indication bits, and the meanings of the preset values are redefined. It should be noted that other indication bits other than MCS and CRC may also be used as potential available indication bits, which will not be repeated here.
  • the preset value meaning of the partial indicator bits of the HT-SIG field may be redefined, thereby indicating some information useful for the 802.11ba device, for example, Other preset values may be defined to indicate the network identifier of the BSS where the sender is located, the WUR sleep mechanism information of the BSS where the sender is located, and the network identifier of the receiver.
  • the network identifier of the BSS where the sender is located may be a complete or truncated network identifier, such as a BSS color, for roughly distinguishing different BSSs.
  • a BSS color for roughly distinguishing different BSSs.
  • the B8 to B13 bits in the HT-SIG1 are used.
  • a total of 6 bits is used to indicate the BSS color to save the indication bit;
  • the WUR sleep mechanism information may include the WUR sleep mechanism information of the BSS where the sender or the receiver is located, that is, the location of the WUR wakeup window.
  • the B14 to B16 bits in the HT-SIG1 indicate the WUR wake-up period
  • the B17-B20 bits in the HT-SIG1 indicate the length of the WUR wake-up window
  • the B21-B23 bits in the HT-SIG1 indicate the WUR wake-up window.
  • the starting position, the wireless communication device of the other BSS can obtain the WUR waking window of the BSS where the sender of the WUR message is located according to the above information, that is, the start time and the end time of the WUR periodic wakeup, wherein the network identifier of the receiving end can be complete or
  • the truncated network identifier such as a Partial Association Identifier (PAID), is a truncated network identification information that the AP assigns to the STA.
  • PAID Partial Association Identifier
  • a possible WUR sleep mechanism information indication method is as shown in Table 1c, using the B14 to B23 bits in the HT-SIG1 and the B0 bits in the HT-SIG2 to indicate the WUR sleep mechanism information, specifically, the WUR wake-up period. It can be indicated by using the B14 to B16 bits in the HT-SIG1 with a total of 3 bits indicating bits (up to 8 preset values).
  • Table 2a, Table 2b, and Table 2c respectively indicate the method for indicating the dormancy mechanism information provided by the embodiment of the present application.
  • the number of indication bits used to indicate the WUR wake-up period and the location in the SIG domain, and the specific setting manner of indicating the meaning of the bits may have various schemes, and details are not described herein again.
  • the WUR wake-up window length can be indicated by using the B17-B20 bits of the HT-SIG1 with a total of 4 bits indicating bits (up to 16 preset values).
  • the specific length of the WUR wake-up window may be directly indicated by the indication bits of the foregoing B17-B20; the reference amount may also be used to indirectly indicate the length of the WUR wake-up window; or, other manners may be used to indicate WUR wake-up The length of the window.
  • the advantage of the direct indication is that the length of the WUR wake-up window can be accurately indicated when there are more indicators.
  • the advantage of the indirect indication is that the length of the WUR wake-up window can be roughly indicated by fewer indicators.
  • the length of the WUR wake-up window is indicated by the ratio of the WUR wake-up window to the entire WUR wake-up period. For example, when the preset value of the indicator bit is set to 0000, the length of the WUR wake-up window is 1 of the WUR wake-up period. /16, assuming the WUR wake-up period is 100ms, the WUR wake-up window is 6.25ms (ie 100ms/16); when the preset value of the indicator bit is set to 0001, the length of the WUR wake-up window is 2/16 of the WUR wake-up period; When the preset value of the indicator bit is set to other values, the length of the WUR wakeup window can be deduced by analogy. It should be noted that the number of indication bits used to indicate the length of the WUR awake window and the location in the SIG domain, as well as the specific setting manner of indicating the meaning of the bits, may have various schemes, and details are not described herein again.
  • the starting position of the WUR awake window can be indicated by using the B21 to B23 bits in the HT-SIG1 and the Bbit bits in the HT-SIG2 with a total of 4 bits indicating bits (up to 16 preset values). Specifically, by using the foregoing 4bits indicator bit, the time deviation value between the start position of the WUR wakeup window and the end of last symbol of WUR message may be directly indicated, such as indicating the start of the WUR wakeup window. Before the end of the WUR message is 1.5ms; the reference position can also be used to indirectly determine the starting position of the WUR wakeup window; or, other ways can be used to indicate the starting position of the WUR wakeup window.
  • the reference position is used to indirectly determine the starting position of the WUR waking window
  • a possible implementation method is as shown in Table 2c, and the WUR message ending time and the WUR waking window are obtained by the WUR message ending time at the position of the WUR awake window.
  • the offset of the starting position which indirectly obtains the starting position of the WUR wakeup window.
  • the end time of the WUR message is indicated in the first 1/16 part of the current WUR awake window, assuming the WUR awake period is 100 ms, and the WUR awake window is 12.5 ms, the WUR awake window The starting position is between 0 and 0.7812 ms (12.5 ms*(1/16)) before the end of the WUR message; when the preset value of the indication bit is set to 0001, the end time of the WUR message is indicated in the current WUR wakeup window.
  • the WUR wake-up window starts at 0.7812 to 1.5624 ms before the end of the WUR message (12.5 ms*(1) /16), and between 12.5ms*(2/16)); when the preset value of the indicator bit is set to other values, the starting position of the WUR wakeup window can be deduced by analogy.
  • the number of indicator bits used to indicate the starting position of the WUR waking window and the location in the SIG domain, as well as the specific setting manner of indicating the meaning of the bit may have various schemes, and details are not described herein again.
  • Table 3a to Table 3e respectively provide the WUR message frame format provided by another embodiment of the present application.
  • the RL-SIG domain and the HE-SIG-A domain are added after the leading L-SIG domain, where The RL-SIG domain and the HE-SIG-A domain are newly defined SIG domains in the 802.11ax protocol, and can be identified and interpreted by 802.11 devices supporting the 802.11ax protocol.
  • the RL-SIG field is a repetition of the L-SIG domain to enhance the robustness of the L-SIG part of the signal, and the transmission duration is 4 us.
  • the HE-SIG-A domain has a total of 52 bits of indication bits, and the transmission duration is 8 us; as shown in Table 3a, the HE-SIG-A domain can be further divided into two parts: HE-SIG-A1 and HE-SIG-A2. Each has a 26bits indicator.
  • the HE-SIG-A1 indication bit of a single-user frame is seen from the least significant bit (LSB) to the highest indicator bit (MSB), where the B3 to B6 bits indicate the MCS.
  • Carrying information such as the transmission rate, the modulation mode, and the number of spatial streams used in the subsequent part of the message;
  • the B8 to B13 bits indicate the BSS color, indicating the truncated identifier of the different Wi-Fi network;
  • B14 is the reserved bit, has not been used; other indications
  • the meaning of the bits is not repeated here.
  • MCS occupies 4bits indicator, up to 16 preset values can be set (such as preset value 0 ⁇ 15, each preset) The value can have different meanings.
  • the default value of the single-user message MCS expected to be used in the 802.11ax protocol is 0 to 11.
  • the reserved default value is 12 to 15.
  • one of the preset values reserved by the MCS is used to indicate that the message is a WUR message of the frame structure shown in Table 3.
  • the MCS preset value is 15 (such as the B3 to B6 bits of the HE-SIG-A1). Indicator bit 1111).
  • the 802.11ba device can identify the message as a WUR message by the preset value of the MCS in the pilot HE-SIG-A domain. In this case, we can redefine all or part of the indication other than the MCS in the HE-SIG-A domain. Bit, used to indicate some useful information for 802.11ba devices.
  • the B14 bit in HE-SIG-A1 shown in Table 3c and the B7-B15 bits in HE-SIG-A2 shown in Table 3e can be used as potential usable indication bits. It should be noted that other indicator bits other than the MCS may also be used here as potentially usable indicator bits.
  • the existing HE-SIG-A domain partial indication bit may be utilized, and the domain is redefined.
  • Other partial indication bits are used to indicate some information useful to the 802.11ba device, which may include WUR sleep mechanism information for the BSS where the sender is located.
  • the WUR sleep mechanism information shown in Table 3 can be indicated by the B14 indicator bit of the HE-SIG-A1 in the HE-SIG-A domain and the B7-B15 indicator bits of the HE-SIG-A2; of course, other The indicator bits that can be used are indicated.
  • the indicator bits that can be used are indicated.
  • the other functional domain may also be a newly defined SIG domain, and the length of the newly defined SIG domain is the length of one OFDM symbol.
  • a SIG domain can be newly defined by a person in the art to carry the first indication information, the second indication information, and the third indication information.
  • the newly defined SIG domain does not need to be bound by the traditional protocol, and the indication bit can be arbitrarily set according to requirements. To indicate some information that is useful to the device.
  • FIG. 8 is a flowchart of a method for determining a sleep mechanism according to another embodiment of the present application. 8 can be combined with the WUR message of the foregoing multiple frame structures to describe the determining method of the dormancy mechanism provided by the embodiment of the present application. As shown in FIG. 8, the method includes the following steps:
  • Step 201 The second device receives, by using the second interface, a preamble of the WUR message of the frame structure sent by the first device of the first BSS.
  • the second device belongs to the second BSS.
  • the first device of the first BSS sends the WUR message of any frame structure described in the foregoing embodiment, and indicates the frame in other functional domains of the preamble (such as HT-SIG, or HE-SIG-A, or other SIG domain).
  • the BSS color and WUR sleep mechanism information is indicated by all or part of the remaining indication bits.
  • the pilot SIG domain may further indicate the WUR message receiving end identifier.
  • Step 202 The second device determines, according to the SIG domain in the preamble, that the message is a WUR message.
  • the foregoing SIG domain may be an HT-SIG domain; if the first preamble includes a HE-SIG-A domain, the foregoing SIG domain may be an HT-SIG-A domain;
  • the SIG domain may also be other SIG domains than the HT-SIG domain and the HE-SIG-A domain described above.
  • Step 203 The second device determines, according to the BSS color, that the sending end of the WUR message is a wireless communication device of another BSS, and obtains WUR sleep mechanism information of the first BSS according to the WUR sleep mechanism information.
  • the second device confirms the wakeup window of the WUR of the first BSS according to the WUR sleep mechanism information, such as the start time and end time of the WUR periodicity.
  • Step 204 The second device determines, according to the obtained BSS color, the WUR sleep mechanism information, and the like, the first BSS. Whether the WUR message sent by the wireless communication device may cause meaningful interference to the wireless communication device in the second BSS transmitting or receiving the WUR message.
  • the criterion that the second device determines that the WUR message sent by the wireless communication device in the first BSS may cause meaningful interference to the wireless communication device in the second BSS to send or receive the WUR message is: the second BSS
  • the time that the WUR wake-up window overlaps with the WUR wake-up window of the first BSS is not less than the first threshold, and the second device considers that the WUR wake-up window of the second BSS overlaps with the WUR wake-up window of the first BSS for too much time, so that the first BSS
  • the probability that the WUR message sent by the wireless communication device in the second wireless communication device interferes with the transmission or reception of the WUR message in the second BSS increases.
  • the first threshold is 50%, that is, if the WUR awake window of the second BSS overlaps with the WUR awake window of the first BSS by at least 50% of the time, the second device determines that the wireless communication device in the first BSS transmits
  • the WUR message may cause significant interference to the wireless communication device in the second BSS transmitting or receiving the WUR message.
  • the first threshold here can also be set to other values, the first threshold can be set higher, such as 70%, 80%, etc.; or, the first threshold can also be set lower, such as 20%, 30%, etc. . It should be noted that a higher first threshold indicates that the second BSS can withstand more interference from the first BSS; a lower first threshold indicates that the second BSS can withstand less interference from the first BSS.
  • the criterion that the second device determines that the WUR message sent by the wireless communication device in the first BSS may cause meaningful interference to the wireless communication device in the second BSS to generate or receive the WUR message is: the second device
  • the number of WUR messages received from the first BSS within the preset time is greater than a second threshold, ie, the WUR message strength from the first BSS.
  • the WUR message strength is the number of times the wireless communication device receives a WUR message from a certain BSS in a unit time.
  • the second device receives 50 times of the WUR message sent by the wireless communication device in the first BSS within 10 minutes, and if the second threshold is set to 20 times, the second device determines that the wireless communication device in the first BSS sends the message.
  • the WUR message may cause significant interference to the wireless communication device in the second BSS transmitting or receiving the WUR message.
  • the advantage of this criterion is that even if the WUR wake-up window of the second BSS overlaps with the WUR wake-up window of the first BSS, if the overlap time exceeds 70% or even more, the second device receives the first from the preset time.
  • the number of WUR messages of the BSS is small. For example, the second device receives 10 WUR messages from the first BSS within 10 minutes.
  • the WUR message sent by the wireless communication device of the first BSS is sent to the wireless communication device in the second BSS.
  • the interference generated by receiving WUR messages is very limited.
  • the second device receives WUR messages from a plurality of different BSSs within a preset time, the criterion can also help the second device to determine which BSS has a higher WUR message strength.
  • the second device of the second BSS (such as AP2) receives the WUR message from the first BSS 50 times in 10 minutes, and the WUR message from the third BSS 5 times, obviously visible, the WUR of the first BSS The message strength is higher than the WUR message strength of the third BSS.
  • Step 205 If the second device determines that the WUR message sent by the wireless communication device in the first BSS may cause meaningful interference to the wireless communication device in the second BSS to send or receive the WUR message, the second device adjusts the second BSS.
  • the WUR wake-up window is as staggered as possible with the WBS wake-up window of the first BSS.
  • the second device adjusts the WUR awake window of the second BSS to be as staggered as possible from the WUR awake window of the first BSS, which can reduce the probability of collision between neighboring BSS wireless communication devices due to the transmission of the WUR message. That is, the first wake-up message sent by the first device of the first BSS is reduced to interfere with the sending or receiving of the second wake-up message by the wireless communication device (including the second device) of the second BSS.
  • the second wake-up message is a WUR message sent by the second device of the second BSS, and may wake up the wireless transceiver of the other wireless communication device in the second BSS, or carry the beacon information.
  • the second device may randomly adjust the WUR wakeup window of the second BSS to another A time window that does not overlap or overlap as little as possible with the WUR wake-up window of the first BSS.
  • the second device determines that the WUR message sent by the wireless communication device in the first BSS may cause meaningful interference to the wireless communication device in the second BSS to send or receive the WUR message, and the BSS color of the second device is pre- If the value is less than (or greater than) the BSS color preset value of the first BSS, the second device adjusts the WUR wake-up window of the second BSS, and the WUR wake-up window of the first BSS is staggered as much as possible, thereby avoiding the first BSS
  • the wireless communication device also determines that the WUR message from the second BSS may cause significant interference to the wireless communication device in the first BSS transmitting or receiving the WUR message such that the wireless communication device of the first BSS is simultaneously with the wireless communication device of the second BSS Adjusting the WUR wake-up window of the respective BSS results in additional overhead.
  • the WUR message strength of the BSS with a higher WUR message strength can be preferentially avoided according to the WUR message strength of the different BSS. window.
  • FIG. 9 is a block diagram of a device for determining a sleep mechanism according to an embodiment of the present application.
  • the device is a first device, as shown in FIG. 9, the device includes a generating module 11 and a transmitting module 12.
  • the generating module 11 is configured to generate a wakeup message, where the wakeup message includes a first guide information, where the first indication information, the second indication information, and the third indication information, the first indication information includes a wakeup message indication, and the second indication information is used to indicate the first
  • the device belongs to the first network; the third indication information is used to indicate that the receiving device in the first network receives the first sleep mechanism information used by the wakeup message; and the first sleep mechanism information is used by the receiving device to determine the first wake window to receive the wakeup message.
  • the sending module 12 is configured to send a wake-up message, so that the second device in the second network sets the second dormant mechanism information according to the preamble to the device in the second network.
  • the first dormancy mechanism information includes one or more of the following: a wakeup period in which the receiving device receives the wakeup message; a length of the wakeup window in which the receiving device receives the wakeup message; and a start of the wakeup window in which the receiving device receives the wakeup message. time.
  • the pilot includes an L-STF domain, an L-LTF domain, an L-SIG domain, and other functional domains, where the other functional domains are used to carry the first indication information, the second indication information, and the third indication information.
  • the other functional domain is a SIG domain defined in the first protocol, and the length of the SIG domain is one or two OFDM symbols.
  • the other functional domain is a newly defined SIG domain
  • the length of the newly defined SIG domain is the length of one OFDM symbol.
  • the device in this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 7.
  • the implementation principle and technical effects are similar, and details are not described herein again.
  • FIG. 10 is a block diagram of a determining apparatus for a sleep mechanism according to another embodiment of the present application.
  • the device is a second device, as shown in FIG. 10, which includes a receiving module 21 and a setting module 22.
  • the receiving module 21 is configured to receive the awake message sent by the first device, where the first device belongs to the first network, the second device belongs to the second network, and the awake message includes a preamble, where the first indicator includes the first indication information, the second indication information, and the third Instructing information, the first indication information includes a wake-up message indication, the second indication information is used to indicate that the first device belongs to the first network, and the third indication information is used to indicate that the receiving device in the first network receives the first sleep used by the wake-up message.
  • Mechanism information the first sleep mechanism information is used to determine a first wake-up window that the receiving device receives the wake-up message.
  • the setting module 22 is configured to set the second sleep mechanism information for the device in the second network according to the pilot.
  • the first sleep mechanism information includes one or more of the following information:
  • the start time of the wake-up window that the receiving device receives the wake-up message is the start time of the wake-up window that the receiving device receives the wake-up message.
  • the pilot includes an L-STF domain, an L-LTF domain, an L-SIG domain, and other functional domains, where the other functional domains are used to carry the first indication information, the second indication information, and the third indication information.
  • the other functional domain is a SIG domain defined in the first protocol, and the length of the SIG domain is one or two OFDM symbols.
  • the other functional domain is a newly defined SIG domain
  • the length of the newly defined SIG domain is the length of one OFDM symbol.
  • the device in this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 7 and FIG. 8.
  • the implementation principle and technical effects are similar, and details are not described herein again.
  • FIG. 11 is a schematic structural diagram of a device according to an embodiment of the present disclosure.
  • the apparatus includes a processor 31 for storing instructions, a processor 31 for executing instructions stored by the memory 32, and a processor 31 for executing instructions stored by the memory 32, the apparatus for Any of the methods described in the above embodiments.
  • FIG. 12 is a schematic structural diagram of a wireless communication device according to an embodiment of the present invention, which may implement any method embodiment provided by the present application, and the first device or the second device in the foregoing method embodiment of the wireless communication device 1300.
  • the wireless communication device can include a processor 1301, a memory 1302, a first receiver 1303, a second transceiver 1304, an antenna 1305, a first interface 1306, and a second interface 1307. It should be noted that, if the first device does not have the capability of receiving the WUR message, or the first device uses the second transceiver to send the WUR message and the Wi-Fi message, the first receiver 1303 is not necessary for the first device.
  • the sub-module 1301 corresponds to a processor (may be one or more), and can implement the preamble of the WUR message frame structure and the generation and parsing of the payload in the embodiment.
  • Sub-module 1302 corresponds to a memory (which may be one or more) for storing program code and transmitting the stored program code to processor 1301.
  • the sub-module 1303 corresponds to the first receiver of the wireless communication device for receiving the WUR signal (such as the first payload) through the first interface 1306, and converting the WUR signal into a sequence that the processor 1301 can parse, such as noise reduction and amplification signals. , demodulation, etc.
  • Sub-module 1303 may be provided with the ability to transmit WUR signals over first interface 1306, depending on the capabilities of 1303.
  • the sub-module 1304 corresponds to the second transceiver of the wireless communication device for receiving a Wi-Fi signal (such as a preamble) through the second interface 1307, and converting the Wi-Fi signal into a sequence that the processor 1301 can parse, such as amplifying the signal, Denoising, demodulating, etc.; and, for transmitting a preamble through the second interface 1307, and converting the preamble sequence generated by the processor 1301 into a Wi-Fi signal that can be transmitted to the medium through the second interface 1307, such as amplifying the signal, Modulation, etc.
  • a Wi-Fi signal such as a preamble
  • the second transceiver 1304 also needs to have the ability to transmit the WUR signal through the first interface 1306.
  • the WUR signal sequence (eg, the first payload) generated by the processor 1301 is converted into a WUR signal, such as an amplified signal, modulation, etc., transmitted into the medium through the first interface 1306.
  • the first receiver 1303 sends a trigger signal to the dormant second transceiver 1304 to wake up the second transceiver 1304.
  • Sub-module 1305 corresponds to the antenna of the wireless communication device.
  • the sub-module 1306 corresponds to a first interface of the wireless communication device, and the wireless communication device transmits or receives a WUR signal through the first interface 1306.
  • the sub-module 1307 corresponds to a second interface of the wireless communication device, and the wireless communication device transmits or receives a Wi-Fi signal through the second interface 1307.
  • the processor 1301 and the memory 1302 can be shared by the first receiver 1303 and the second transceiver 1304. As shown in FIG. 12, the first interface 1306 and the second interface 1307 can share the same antenna sub-module 1305, which is mainly in consideration of reducing the hardware cost of the device.
  • the first interface 1303 and the second interface 1304 may also correspond to different antennas, particularly when the two are operating in different frequency bands, such as the 2.4 GHz band and the 5 GHz band.
  • the wireless communication device 1300 can be implemented by a System on a Chip (SoC) or an integrated circuit.
  • SoC System on a Chip

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Abstract

L'invention concerne un procédé, un appareil et un dispositif de détermination de mécanisme de latence. Le procédé comprend les étapes suivantes : un premier dispositif génère un message de réveil, le message de réveil comprenant un guide, le guide comprenant des premières informations d'indication, des secondes informations d'indication et des troisièmes informations d'indication, les premières informations d'indication comprenant une indication de message de réveil, les secondes informations d'indication sont utilisées pour indiquer que le premier dispositif appartient à un premier réseau, les troisièmes informations d'indication sont utilisées pour indiquer qu'un dispositif de réception dans le premier réseau reçoit des premières informations de mécanisme de latence utilisées par le message de réveil, et les premières informations de mécanisme de latence étant utilisées pour le dispositif de réception pour déterminer une première fenêtre de réveil afin de recevoir le message de réveil ; et le premier dispositif envoie le message de réveil, de telle sorte qu'un second dispositif dans un second réseau établit, selon le guide, des secondes informations de mécanisme de latence pour des dispositifs dans le second réseau, et ainsi des dispositifs de communication sans fil dans différents réseaux peuvent échelonner des fenêtres de réveil pour envoyer le message de réveil de façon à réduire la probabilité de conflit entre différents réseaux envoyant le message de réveil.
PCT/CN2017/087246 2017-03-21 2017-06-06 Procédé, appareil et dispositif de détermination de mécanisme de latence WO2018171049A1 (fr)

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