WO2018166076A1 - 一种接收唤醒帧的方法及设备 - Google Patents

一种接收唤醒帧的方法及设备 Download PDF

Info

Publication number
WO2018166076A1
WO2018166076A1 PCT/CN2017/087044 CN2017087044W WO2018166076A1 WO 2018166076 A1 WO2018166076 A1 WO 2018166076A1 CN 2017087044 W CN2017087044 W CN 2017087044W WO 2018166076 A1 WO2018166076 A1 WO 2018166076A1
Authority
WO
WIPO (PCT)
Prior art keywords
wake
preamble
frame
wakeup
wireless device
Prior art date
Application number
PCT/CN2017/087044
Other languages
English (en)
French (fr)
Inventor
程勇
方平
庞高昆
李小仙
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201780035240.7A priority Critical patent/CN109314946B/zh
Publication of WO2018166076A1 publication Critical patent/WO2018166076A1/zh

Links

Images

Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • 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 wireless communications technologies, and in particular, to a method and a device for receiving a wake-up frame.
  • WIFI WirelessFIdelity
  • the application scenarios for the WIFI technology are generally as follows: First, the WIFI access point (AP) provides a WIFI network in a certain coverage area, for example, a WIFI router; then, the WIFI workstation (Station, STA) is in the WIFI AP. Within the coverage area, access to WIFI networks, such as mobile phones and tablets.
  • AP WIFI access point
  • STA WIFI workstation
  • WIFI networks such as mobile phones and tablets.
  • a WIFI communication module is provided inside the AP and the STA that support the above WIFI function. Since the power consumption of the WIFI communication module is large, and the AP and the STA have the need to save power, the relevant technicians provide a new solution.
  • an auxiliary wake-up interface is respectively set in the AP and the STA to wake up the corresponding WIFI communication module.
  • the average power consumption of the auxiliary wake-up interface is about 100uw, which is only 0.1% of the average power consumption of the WIFI communication module.
  • the WIFI communication module of the AP and the STA enters a deep sleep state (in the deep sleep state, the transceiver of the WIFI communication module is turned off, and the WIFI communication module is The power consumption is close to zero), and the auxiliary wake-up interface enters the working state.
  • a party that actively initiates communication such as an AP, will first activate its own WIFI communication module, and then send a wake-up frame to the receiver's auxiliary wake-up interface, for example, STA. Auxiliary wake-up interface.
  • the auxiliary wake-up interface of the receiver After receiving the wake-up frame of the sender, the auxiliary wake-up interface of the receiver will wake up its own WIFI communication module, and both the sender and the receiver can perform normal communication.
  • the auxiliary wake-up interface of each wireless device (which may be an auxiliary wake-up interface of the AP or an auxiliary wake-up interface of the STA) may detect multiple Wake up the frame.
  • the wireless device For each detected wake-up frame, the wireless device performs the operations of: receiving the wake-up frame; decoding the wake-up frame to determine whether the wake-up call is sent to itself; if determining that the wake-up frame is sent to itself Wake up the WIFI communication module, otherwise, do nothing. It can be seen that in the prior art, the wireless device performs receiving and decoding operations on each detected wake-up frame, so that the power consumption of the wireless device is large.
  • the present application provides a method and apparatus for receiving a wake-up frame to reduce power consumption of a wireless device.
  • the first aspect provides a method for receiving a wake-up frame, including: when a first wake-up frame is detected, the first wireless device performs a related operation on the first wake-up preamble and the second wake-up preamble to obtain the first wake-up preamble and the a second wake-up preamble correlation value, where the first wake-up preamble is a wake-up preamble carried in the wake-up frame, and the second wake-up preamble is a wake-up preamble pre-configured by the auxiliary wake-up interface of the first wireless device;
  • the first wireless device is in the first wake-up front
  • the wake-up frame is received when a correlation value of the second wake-up preamble is greater than or equal to a preset value.
  • the first wireless device only receives the wake-up frame whose correlation value is greater than or equal to the preset value. Compared with the prior art, the first wireless device receives all the detected wake-up frames, thereby reducing the power consumption of the wireless device. .
  • the method further includes: the first wireless device stops receiving the wakeup when a correlation value of the first wakeup preamble and the second wakeup preamble is less than the preset value frame.
  • the correlation operation is an inner product operation
  • the correlation values of the first wakeup preamble and the second wakeup preamble are inner products of the first wakeup preamble and the second wakeup preamble. The result of the operation.
  • the auxiliary wake-up interface of the first wireless device is further configured with one or more third wake-up preambles, and the one or more third wake-up preambles are carried on the first wireless device. Sended in the wakeup frame.
  • the present application pre-sets two wake-up preambles for each wireless device, one for carrying and the other for receiving. Compared with the prior art, each wireless device needs to obtain the wake-up preamble of the target receiving device in the sending of the wake-up frame.
  • the method of the present application is easier to implement and has lower cost.
  • the first wireless device is a wireless fidelity access point
  • the second wake-up preamble is an uplink wake-up preamble
  • the third wake-up preamble is a downlink wake-up preamble
  • the first The wireless device is a wireless fidelity workstation
  • the second wake-up preamble is a downlink wake-up preamble
  • the third wake-up preamble is an uplink wake-up preamble.
  • the second aspect provides a method for sending a wake-up frame, including: acquiring, by a second wireless device, a first wake-up preamble; and generating, by the second wireless device, a wake-up frame, where the wake-up frame carries the first wake-up preamble; The second wireless device sends the wake-up frame.
  • the second wireless device acquires a first wake-up preamble, including: the second wireless device determines a target receiving device of the wake-up frame; and the second wireless device acquires the target receiving device The auxiliary wake-up interface pre-configured wake-up preamble; the second wireless device uses the wake-up preamble of the auxiliary wake-up interface pre-configured by the target receiving device as the first wake-up preamble.
  • the second wireless device acquires the first wake-up preamble, including: the second wireless device acquiring, by the second wireless device, the auxiliary wake-up interface pre-configured for carrying in the wake-up frame The preamble is awakened as the first wake-up preamble.
  • the secondary wake-up interface of the second wireless device is also pre-configured with a wake-up preamble for receiving the wake-up frame.
  • the second wireless device is a wireless fidelity access point, and the wake-up preamble pre-configured by the auxiliary wake-up interface of the second wireless device for carrying in the wake-up frame is a downlink wake-up preamble,
  • the wake-up preamble for receiving the wake-up frame pre-configured by the auxiliary wake-up interface of the second wireless device is an uplink wake-up preamble; or the second wireless device is a wireless fidelity workstation, and the auxiliary wake-up interface of the second wireless device is pre-
  • the wake-up preamble carried in the wake-up frame is configured as an uplink wake-up preamble, and the wake-up preamble for receiving the wake-up frame pre-configured by the auxiliary wake-up interface of the second wireless device is a downlink wake-up preamble.
  • the second wireless device acquires a first wake-up preamble, including: the second wireless device determines a target receiving device of the wake-up frame; and the second wireless device determines the target receiving device The target wireless group to which the target wireless group belongs; the second wireless device selects a calling preamble corresponding to the target wireless group from the wake-up preamble corresponding to each of the plurality of wireless groups as the first wake-up preamble.
  • any of the second aspect and the second aspect of the present application which may be designed as a transmitting side corresponding to the first aspect and any possible design of the first aspect, specific embodiments and advantageous effects, may be referred to the first aspect and Any of the possible designs of the first aspect.
  • a third aspect provides an apparatus for receiving a wake-up frame, including: a processor, configured to perform a related operation on a first wake-up preamble and a second wake-up preamble when the wake-up frame is detected, to obtain the first wake-up preamble and the a second wake-up preamble correlation value, where the first wake-up preamble is a wake-up preamble carried in the wake-up frame, and the second wake-up preamble is a wake-up preamble pre-configured by the auxiliary wake-up interface of the device that receives the wake-up frame; And a transceiver, configured to receive the wake-up frame when a correlation value of the first wake-up preamble and the second wake-up preamble is greater than or equal to a preset value.
  • the transceiver is further configured to stop receiving the wake-up frame when a correlation value of the first wake-up preamble and the second wake-up preamble is less than the preset value.
  • the correlation operation is an inner product operation
  • the correlation values of the first wakeup preamble and the second wakeup preamble are inner products of the first wakeup preamble and the second wakeup preamble. The result of the operation.
  • the auxiliary wake-up interface of the device receiving the wake-up frame is further configured with one or more third wake-up preambles, and the one or more third wake-up preambles are carried in the first wireless The wakeup frame sent by the device.
  • the device that receives the wake-up frame is a wireless fidelity access point
  • the second wake-up preamble is an uplink wake-up preamble
  • the third wake-up preamble is a downlink wake-up preamble
  • the receiving The device that wakes up the frame is a wireless fidelity workstation
  • the second wakeup preamble is a downlink wakeup preamble
  • the third wakeup preamble is an uplink wakeup preamble.
  • any of the third aspect and the third aspect of the present application which may be designed to correspond to the first aspect and any of the possible designs of the first aspect, the specific embodiments and the beneficial effects, see the first aspect and the first aspect. Any possible design.
  • the fourth aspect provides a device for sending a wake-up frame, including: a processor, configured to acquire a first wake-up preamble, generate a wake-up frame, where the wake-up frame carries the first wake-up preamble, and a transceiver for sending The wake-up frame.
  • the processor when acquiring the first wake-up preamble, is specifically configured to: determine a target receiving device of the wake-up frame; and acquire a wake-up preamble pre-configured by the auxiliary wake-up interface of the target receiving device; The wake-up preamble pre-configured by the auxiliary wake-up interface of the target receiving device is used as the first wake-up preamble.
  • the processor when acquiring the first wake-up preamble, is specifically configured to: acquire a wake-up preamble carried in the wake-up frame pre-configured by the auxiliary wake-up interface of the second wireless device, as The first wake-up preamble.
  • the secondary wake-up interface of the second wireless device is also pre-configured with a wake-up preamble for receiving the wake-up frame.
  • the device that sends the wake-up frame is a wireless fidelity access point
  • the wake-up preamble pre-configured by the auxiliary wake-up interface of the device that sends the wake-up frame is used to wake up in the wake-up frame.
  • the wake-up preamble for receiving the wake-up frame pre-configured by the auxiliary wake-up interface of the device that sends the wake-up frame is an uplink wake-up preamble; or the device that sends the wake-up frame is a wireless fidelity workstation, and the device that sends the wake-up frame
  • the wake-up preamble carried in the wake-up frame is configured as an uplink wake-up preamble, and the wake-up preamble for receiving the wake-up frame pre-configured by the auxiliary wake-up interface of the device that sends the wake-up frame is a downlink wake-up preamble.
  • the processor when acquiring the first wake-up preamble, is specifically configured to: determine a target receiving device of the wake-up frame; determine a target wireless group to which the target receiving device belongs; In the wake-up preamble corresponding to the wireless group, the calling preamble corresponding to the target radio group is selected as the first wake-up preamble.
  • any of the fourth aspect and the fourth aspect of the present application which may be designed to correspond to the second aspect and any possible design of the second aspect, the specific embodiments and the beneficial effects, see the second aspect and the second aspect. Any possible design.
  • a fifth aspect a processing system for waking up frames, comprising: the apparatus for receiving a wake-up frame in any of the possible aspects of the third aspect and the third aspect, and the fourth aspect and any possible design of the fourth aspect The device that sends the wake-up frame.
  • the device that sends the wake-up frame is a wireless fidelity access point
  • the device that receives the wake-up frame is a wireless fidelity workstation; or the device that sends the wake-up frame is a wireless fidelity workstation.
  • the device that receives the wake-up frame is a wireless fidelity access point.
  • a computer readable storage medium comprising instructions that, when executed on a computer, cause the computer to perform the method of any of the above-described first aspects and any one of the possible aspects of the first aspect.
  • a computer readable storage medium comprising instructions that, when executed on a computer, cause the computer to perform the method of any of the second aspect and the second aspect.
  • the first wireless device when the first wireless device receives the wake-up frame, the first wake-up preamble carried in the wake-up frame and the second wake-up preamble pre-configured by the auxiliary wake-up interface of the first wireless device are performed.
  • Related operations and when the correlation value of the two is less than the preset value, determining that the wake-up frame is independent of the first wireless device, that is, the wake-up frame is not sent to the first wireless device, at this time, A wireless device stops receiving the wake-up frame, and receives all the received wake-up frames with respect to the first wireless device in the prior art, which can save power consumption of the first wireless device.
  • FIG. 1 is a schematic structural diagram of a wireless device provided by the present application.
  • FIG. 2 is a schematic diagram of a BSS provided by the present application.
  • FIG. 3 is a schematic structural diagram of a wireless device provided by the present application.
  • FIG. 4 is a schematic flowchart of receiving a wake-up frame provided by the present application.
  • FIG. 5 is a schematic diagram of a wake-up preamble provided by the present application.
  • FIG. 6 is a schematic diagram of a BSS provided by the present application.
  • FIG. 7 is a schematic diagram of a BSS provided by the present application.
  • FIG. 8 is a schematic diagram of a BSS provided by the present application.
  • FIG. 9 is a schematic structural diagram of an apparatus for receiving a wake-up frame according to the present application.
  • FIG. 10 is a schematic structural diagram of a processing system for a wake-up frame provided by the present application.
  • BSS Basic Service Set
  • WLAN Wireless Fidelity
  • AP An access point that supports the 802.11 protocol. It is mainly used to provide a WIFI network in a certain coverage area, such as a WIFI router.
  • Workstation A workstation that supports the 802.11 protocol. It is mainly used to access WIFI networks in the coverage area of WIFI APs, such as mobile phones, tablets, sensor nodes, and wearable devices.
  • 802.11 protocol The standard established by the Institute of Electrical and Electronics Engineers (IEEE) for wireless local area networks.
  • FIG. 2 shows a possible BSS provided by the present application
  • the BSS 200 includes an AP 201 and a STA 202;
  • the AP 201 is configured to provide a WIFI network in a certain coverage area
  • the STA 202 is configured to access the WIFI network in the coverage area of the AP 201.
  • BSS 200 may include one or more APs 201 and one or more STAs 202.
  • the smart phone represents STA 22 in FIG. 2, and in the present application, STA 202 can be a smart phone, a portable computer, a sensor node, and a wearable smart device (such as a smart watch and a sports bracelet) and an implanted digital device. Smart devices such as medical sensors.
  • FIG. 3 is a schematic structural diagram of a wireless device.
  • the wireless device in FIG. 3 may be the AP 201 in FIG. 2 or the STA 202 in FIG. 2 .
  • the wireless device 300 includes, but is not limited to, a processor 301, a memory 302, a main communication interface 303, a Wake-up Radio (WUR) interface 304, and an antenna 305.
  • a processor 301 the wireless device 300 includes, but is not limited to, a processor 301, a memory 302, a main communication interface 303, a Wake-up Radio (WUR) interface 304, and an antenna 305.
  • WUR Wake-up Radio
  • the primary communication interface 303 is used to provide WIFI coverage within a certain range, and when the wireless device 300 is an STA, the primary communication interface 303 is used to access the WIFI within the coverage of the WIFI AP.
  • the internet When the wireless device 300 is an AP, the primary communication interface 303 is used to provide WIFI coverage within a certain range, and when the wireless device 300 is an STA, the primary communication interface 303 is used to access the WIFI within the coverage of the WIFI AP.
  • the internet The internet.
  • the auxiliary wake-up interface 304 is configured to receive a wake-up frame (WUP) and a wake-up main communication interface 303.
  • WUP wake-up frame
  • the main communication interface 303 is in a deep sleep state in which the transmitter of the main communication interface 303 is turned off and the power consumption is close to zero.
  • the primary wakeup interface 304 wakes up the primary communication interface 303.
  • the secondary wake-up interface 304 when the primary communication interface 303 is in a deep sleep state, the secondary wake-up interface 304 is in a listening state (also referred to as an active state) for listening to the wake-up frame.
  • the main communication interface 303 When the main communication interface 303 is in the awake state, the auxiliary wake-up interface 304 may be in a deep sleep state or may be in a listening state.
  • the secondary wake-up interface 304 employs a duty cycle (Duty-Cycling), ie, the auxiliary wake-up interface 304 is constantly switching between the active state and the sleep state, the secondary wake-up interface 304 may be listening when the primary communication interface 303 is in a deep sleep state.
  • the state (the working state in the duty cycle), or the auxiliary wake-up interface 304 may also be in a sleep state (sleep state in the duty cycle).
  • the main communication interface 303 and the auxiliary wake-up interface 304 may share an antenna 305, or the main communication interface 303 and the auxiliary wake-up interface 304 may respectively correspond to different antennas, especially when the main communication interface 303 and the auxiliary wake-up interface 304 operate differently.
  • the band is.
  • the wireless device 300 may be implemented by a system on a chip (SoC) or by an integrated circuit or by a combination of two hardware modules.
  • SoC system on a chip
  • the party actively initiating communication for example, the AP 201
  • the passive communication party for example, the STA 202
  • the STA 202 detects the wake-up.
  • Receiving the wake-up frame then decoding the wake-up frame, determining whether it is related to itself and the correctness and authenticity of the wake-up frame, if the wake-up frame is sent to the STA 202 itself, and the wake-up frame is correct and Really, wake up its own main communication interface, otherwise, do nothing.
  • a wake-up frame associated with a wireless device refers to a wake-up frame that may be sent to the wireless device, ie, the wireless device may be a target recipient of the wake-up frame, and a wake-up frame that is independent of a wireless device, A wake-up frame sent to other wireless devices other than the wireless device, ie, the wireless device is certainly not the intended recipient of the wake-up frame.
  • FIG. 4 is a flowchart of receiving a wake-up frame according to the present application.
  • the first wireless device in the process may be the AP 201 in FIG. 2
  • the second wireless device may be the STA 202 in FIG. 2, or the first wireless device may be used.
  • the second wireless device may be the AP 201 in FIG. 2, as shown in FIG. 4, including:
  • Step S41 The second wireless device sends a wake-up frame.
  • the wake-up frame is mainly composed of two parts, namely, a wake-up preamble and a medium access control (MAC) part.
  • the wake-up preamble is mainly used to help the wireless device that receives the wake-up frame, the detection of the wake-up frame, the symbol synchronization, and the AGC setting.
  • the wake-up preamble sequence may be a sequence consisting of “0” and “1”.
  • the wake-up preamble sequence can be by "- A sequence consisting of 1" and "1", for example, "-1, 1, -1, 1, -1, 1, -1, 1", or other sequences, for example, a Walsh sequence, a Golay sequence, and the like.
  • PN pseudo-noise
  • the MAC portion includes at least a Receiver Address (RA) of the wake-up frame, and the Receiver Address (RA) is used to identify a target recipient of the wake-up frame.
  • the Receiver Address (RA) may include Network ID information and/or WUR ID information of the target device; or the Receiver Address (RA) may be a Network ID and A combination of Wakeup Radio Identifier (WUR ID) of the target device; or the Receiver Address (RA) may be a Wakeup Radio Identifier (WUR ID) of the target device.
  • the wake-up radio identifier (WUR ID) of the target device may be selected and assigned by the AP or AC, or the wake-up radio identifier may be set when the device is shipped from the factory.
  • the network identifier may be used to identify information of a basic service set (BSS) to which the wake-up frame belongs and/or an associated AP, such as a BSS color or a BSSID.
  • the Network ID may be part of a Wakeup Radio Identifier (WUR ID) of the target device.
  • BSS basic service set
  • WUR ID Wakeup Radio Identifier
  • the wake-up frame may further include one or more of the following information: a legacy 802.11 Preamble, a Frame Type, a Transmit Address (TA), Control Info, Counter, Frame Authentication Information (such as MIC), and Frame Check Information (such as FCS).
  • the legacy 802.11 Preamble can be used for backward compatibility, so that the traditional Wi-Fi device can judge the current frame as a Wi-Fi frame, thereby selecting a corresponding channel listening decision threshold and backoff time.
  • the frame type information (Frame Type) may be used to indicate the type of the wake-up frame, for example, indicating a wake-up frame (WUP), or a wake-up frame indicating unicast, or a wake-up frame indicating broadcast.
  • the sender address may be sender related information, such as BSS color, or BSSID, or a MAC address, or part of a MAC address.
  • the control information can be used to indicate information such as control commands and link parameters.
  • the counter information (Counter) can be used to help the receiving end to implement the correctness check and/or authenticity authentication of the received wake-up frame.
  • the authentication information (MIC) can be used to help the receiving end authenticate the authenticity of the received wake-up frame.
  • FCS frame check sequence
  • the Wake-up Preamble may also be referred to as: Wake-up Preamble Sequence, Preamble Sequence, Preamble, Pilot Sequence ( Preamble Sequence), or Physical Preamble.
  • the wake-up preamble carried in the wake-up frame may be referred to as a first wake-up preamble, and the first wake-up preamble is only used to distinguish from other wake-up preambles, and is not used to indicate or imply relative Importance is not used to indicate or imply order.
  • Step S42 When the first wireless device detects the wake-up frame, perform a correlation operation on the first wake-up preamble and the second wake-up preamble to obtain correlation values of the first wake-up preamble and the second wake-up preamble, where
  • the second wakeup preamble is a wakeup preamble preconfigured by the auxiliary wakeup interface of the first wireless device;
  • the related operations may be, but are not limited to, an inner product operation, the first wake-up preamble and the second
  • the correlation value of the wakeup preamble may be, but is not limited to, an inner product operation result for the first wakeup preamble and the second wakeup preamble.
  • the related operations may also be other operations as needed.
  • the first wakeup preamble is “0, 1, 0, 1”
  • the second wakeup preamble is “1, 0, 1, 0”
  • the inner product operation result of the first wake-up preamble and the second wake-up preamble is zero (in this case, the first wake-up preamble and the second wake-up call)
  • the preamble is orthogonal).
  • Step S43 The first wireless device receives the wake-up frame when the correlation value of the first wake-up preamble and the second wake-up preamble is greater than or equal to a preset value.
  • Step S44 The first wireless device stops receiving the wake-up frame when the correlation value of the first wake-up preamble and the second wake-up preamble is less than the preset value.
  • the first wireless device when the first wireless device receives the wake-up frame, the first wake-up preamble carried in the wake-up frame and the second wake-up pre-configured by the auxiliary wake-up interface of the first wireless device are related, and When the correlation value of the two is less than the preset value, it may be determined that the wake-up frame is independent of the first wireless device, that is, the wake-up frame is not sent to the first wireless device, and at this time, the first wireless device stops. Receiving the wake-up frame, receiving all the received wake-up frames with respect to the first wireless device in the prior art, may save power consumption of the first wireless device.
  • a wake-up preamble is configured in advance for an auxiliary wake-up interface of a wireless device in a BSS, where the wireless device may be an AP or a STA; and an auxiliary wake-up interface of any two wireless devices
  • the wake-up preambles are different, and the difference is the correlation value between the wake-up preambles of the auxiliary wake-up interfaces of any two wireless devices, which is less than a preset value.
  • the wake-up preamble of the auxiliary wake-up interface of any two wireless devices within a BSS may be orthogonal, ie, the correlation value between the two is zero.
  • the second wireless device determines a target receiving device of the wake-up frame; the second wireless device acquires a wake-up preamble pre-configured by the auxiliary wake-up interface of the target receiving device; the second wireless device And the second wireless device generates a wake-up frame, where the wake-up frame carries the first wake-up preamble; the first The wireless device transmits the wake-up frame.
  • the first wake-up preamble carried in the wake-up frame and the second wake-up pre-configured by the auxiliary wake-up interface of the first wireless device are related to each other; if the correlation value of the two is greater than Equal to the preset value, receiving the wake-up frame, otherwise, stopping receiving the wake-up frame.
  • the process of the present application will be described in detail with the first wireless device as the STA and the second wireless device as the AP.
  • the first wireless device may also be an AP, and the second wireless device. It can also be a STA, and the process is similar to the above, and will not be described here.
  • the entire BSS includes one AP and multiple STAs.
  • the AP side stores the wake-up preamble of all STA-assisted wake-up interfaces that communicate with the STA.
  • the STA is referred to as the target STA, and the target STA is obtained first.
  • the wake-up preamble of the auxiliary wake-up interface hereinafter referred to as the first wake-up preamble; then, the first wake-up preamble is carried into the wake-up frame, and the wake-up frame is sent to the STA side.
  • a wake-up frame is detected for both the target STA and the non-target STA.
  • the first wake-up preamble carried in the wake-up frame is the wake-up preamble pre-configured by the auxiliary wake-up interface of the target STA, the inner product of the two is definitely greater than the preset value, so the target STA can receive the Wake up frame
  • the first wake-up preamble of the auxiliary wake-up interface of the target STA carried in the wake-up frame is not
  • the target STA is in the wake-up preamble of the first wake-up preamble carried in the wake-up frame and its own auxiliary wake-up interface.
  • the correlation value of the two must be less than the preset value. At this time, the non-target STA will stop receiving the wake-up frame.
  • the wireless devices in the BSS may be divided into different groups in advance, and the wake-up preambles of the auxiliary wake-up interfaces of the wireless devices in the same group are the same, and the wake-up preambles of the auxiliary wake-up interfaces of the wireless devices in different groups are different, so-called different It means that the correlation value between the wake-up preambles of any two groups is less than a preset value, for example, the wake-up preambles of any two groups are orthogonal to each other.
  • the second wireless device determines a target receiving device of the wake-up frame; the second wireless device determines a target wireless group to which the target receiving device belongs; and the second wireless device is in a wake-up preamble from multiple wireless groups Selecting a calling preamble of the target radio group as the first wakeup preamble; the second wireless device generates a wakeup frame, where the wakeup frame carries the first wakeup preamble; and the second wireless device sends the wakeup frame.
  • the first wireless device When detecting the wake-up frame, the first wireless device performs related operations on the first wake-up preamble carried in the wake-up frame and the second wake-up pre-configured by the first wireless device auxiliary wake-up interface, and if The correlation value is greater than or equal to the preset value, and the wake-up frame is received. Otherwise, the receiving of the wake-up frame is stopped, and the second wake-up pre-configured by the first wireless device auxiliary wake-up interface is the wireless of the first wireless device. The group wakes up the leader.
  • the wireless devices in the entire BSS are divided into three groups, namely, a first group, a second group, and a third group, the first group includes one or more APs, and the second group includes one. Or multiple STAs, the third group includes one or more STAs.
  • the AP of the first group determines the target STA, and then determines the wireless group to which the target STA belongs, that is, the second group; then the AP searches for the wake-up preamble of the second group in the wake-up preamble of the multiple radio groups;
  • the wake-up frame carries a second set of wake-up preambles, and the wake-up frame is sent.
  • the second group of wake-up preambles carried in the wake-up frame may be related to the wake-up preamble of the second group (ie, the wake-up preamble of the second group). It is found that the correlation value of the two is greater than the preset value, and the wake-up frame is received at this time.
  • the wake-up preamble of the second group carried in the wake-up frame may be related to its wake-up preamble (that is, the wake-up preamble of the third group). It is found that the correlation value of the two is less than the preset value, and the receiving of the wake-up frame is stopped.
  • the STAs in other groups except the group to which the target STA belongs can stop receiving the wake-up frame, thereby saving the power consumption of the STA.
  • each of the wireless devices in the BSS may be configured in advance with two wake-up preambles, respectively, a wake-up preamble carried in the wake-up frame and a wake-up preamble to receive the wake-up frame.
  • the specific process is as follows: the second wireless device acquires a wake-up preamble carried in the wake-up frame pre-configured by the auxiliary wake-up interface of the second wireless device; and the second wireless device pre-allies the auxiliary wake-up interface of the second wireless device Configuring a wakeup preamble to be carried in the awake frame as the first wakeup preamble; the second wireless device generates a wakeup frame, where the wakeup frame carries the first wakeup preamble; the second wireless device sends the Wake up the frame.
  • the first wireless device when detecting the wake-up frame, performs related operations on the first wake-up preamble carried in the wake-up frame and the second wake-up preamble for receiving the wake-up frame pre-configured by the auxiliary wake-up interface of the first wireless device. And if the correlation value of the two is greater than or equal to the preset value, the wake-up frame is received, otherwise, the wake-up frame is stopped.
  • the wakeup preamble carried in the wakeup frame is a downlink wakeup preamble
  • the wakeup preamble for receiving the wakeup frame is an uplink wakeup preamble
  • the wake-up preamble carried in the wake-up frame is an uplink wake-up preamble for receiving
  • the wake-up preamble of the wake-up frame is the downlink wake-up preamble.
  • the entire BSS includes one AP and two STAs, and the two STAs are the first STA and the second STA, respectively.
  • the auxiliary wake-up interface of the AP and the STA is configured with an uplink wake-up preamble and a downlink wake-up preamble.
  • the second STA may acquire an uplink preamble, generate a wake-up frame, where the wake-up frame carries an uplink preamble; and then send the wake-up frame.
  • the AP detects the wake-up frame
  • the uplink preamble carried in the wake-up frame and the uplink wake-up preamble pre-configured by the auxiliary wake-up interface are related to the uplink wake-up preamble, and the correlation value between the two will be greater than the preset value. Receiving the wake-up frame.
  • the uplink wake-up preamble carried in the wake-up frame and the downlink wake-up preamble pre-configured by the auxiliary wake-up interface are related, and the correlation value between the two is less than the preset. For the value, the second STA will stop receiving the wake-up frame.
  • the MAC portion of the wake-up frame is demodulated (refer to the MAC portion in FIG. 5), and the MAC portion is viewed. Whether the receiver address matches its own address, if it matches, it will wake up its own main communication interface, otherwise, no operation will be performed.
  • the MAC part in the wake-up frame will carry the receiving address of the auxiliary wake-up interface of the first STA (for example, the identification information of the auxiliary wake-up interface, or The identification information of the STA), therefore, the first STA will wake up the primary communication interface of the first STA after receiving the wake-up frame; and for the second STA, the receiver address carried by the MAC part of the wake-up frame and itself If the addresses do not match, the operation of waking up the main communication interface will not be performed.
  • the auxiliary wake-up interface of the first STA for example, the identification information of the auxiliary wake-up interface, or The identification information of the STA
  • the modulation coding mode of the wake-up preamble of the wake-up frame is relatively simple, for example, OOK modulation or BPSK modulation.
  • the MAC portion of the wake-up frame uses more complex channel coding, such as repeated coding and binary convolutional codes. Therefore, the MAC portion of the wake-up frame is processed to consume more power than the wake-up preamble portion of the wake-up frame.
  • a mobile phone or other intelligent terminal acts as a virtual access point (SoftAP, or mobile AP), providing a WIFI network.
  • SoftAP virtual access point
  • the wearable device acts as a STA and accesses the virtual access point.
  • the uplink wakeup preamble used by the adjacent BSS may be the same or different, and the downlink wakeup preamble may be the same or different.
  • the uplink wakeup preamble in the basic service set is the same as the uplink wakeup preamble in the basic service set 2, and the downlink wakeup preamble in the basic service set 1 is different from the downlink wakeup preamble in the basic service set 2;
  • the difference is that the two downlink wakeup preambles are orthogonal, or the cross correlation values of the two downlink wakeup preambles are smaller than the preset one threshold value.
  • the uplink wakeup preamble in the basic service set 1 is different from the uplink wakeup preamble in the basic service set 2, and the downlink wakeup preamble in the basic service set 1 is different from the downlink wakeup preamble in the basic service set 2;
  • the difference is that two uplink (or downlink) wake-up preambles are orthogonal, or that the cross-correlation values of two uplink (or downlink) wake-up preambles are smaller than the preset one threshold value V1.
  • an apparatus 900 for receiving a wake-up frame is also provided, which may include:
  • the processor 901 is configured to perform a correlation operation on the first wakeup preamble and the second wakeup preamble when the wakeup frame is detected, to obtain correlation values of the first wakeup preamble and the second wakeup preamble, where the first wakeup
  • the preamble is a wakeup preamble carried in the wakeup frame
  • the second wakeup preamble is a wakeup preamble preconfigured by the auxiliary wakeup interface of the device that receives the wakeup frame
  • the transceiver 902 is configured to receive the wake-up frame when a correlation value of the first wake-up preamble and the second wake-up preamble is greater than or equal to a preset value.
  • the transceiver 902 is further configured to stop receiving the wake-up frame when a correlation value of the first wake-up preamble and the second wake-up preamble is less than the preset value.
  • the correlation operation is an inner product operation
  • the correlation between the first wakeup preamble and the second wakeup preamble is an inner product operation result of the first wakeup preamble and the second wakeup preamble.
  • the auxiliary wake-up interface of the device that receives the wake-up frame is further configured with one or more third wake-up preambles, and the one or more third wake-up preambles are used for wake-up sent by the device that receives the wake-up frame. Carry in the frame.
  • the device that receives the wake-up frame is a wireless fidelity access point
  • the second wake-up preamble is an uplink wake-up preamble
  • the third wake-up preamble is a downlink wake-up preamble
  • the second wakeup preamble is a downlink wakeup preamble
  • the third wakeup preamble is an uplink wakeup preamble
  • an apparatus 900 for transmitting a wake-up frame including:
  • the processor 901 is configured to acquire a first wake-up preamble, and generate a wake-up frame, where the wake-up frame carries the first wake-up preamble;
  • the transceiver 902 is configured to send the wake-up frame.
  • the processor when acquiring the first wake-up preamble, is specifically configured to: determine a target receiving device of the wake-up frame; acquire a wake-up preamble pre-configured by the auxiliary wake-up interface of the target receiving device; The wake-up preamble of the auxiliary wake-up interface of the receiving device is pre-configured as the first wake-up preamble.
  • the processor when acquiring the first wake-up preamble, is specifically configured to: acquire, by using an auxiliary wake-up interface pre-configured by the auxiliary wake-up interface of the device that sends the wake-up frame, a wake-up preamble carried in the wake-up frame, as the foregoing A wake up lead.
  • the auxiliary wake-up interface of the device that transmits the wake-up frame is also pre-configured with a wake-up preamble for receiving the wake-up frame.
  • the device that sends the wake-up frame is a wireless fidelity access point
  • the wake-up preamble carried in the wake-up frame pre-configured by the auxiliary wake-up interface of the device that sends the wake-up frame is a downlink wake-up preamble
  • the wake-up preamble for receiving the wake-up frame pre-configured by the auxiliary wake-up interface of the device that sends the wake-up frame is the uplink wake-up preamble
  • the device that sends the wake-up frame is a wireless fidelity workstation
  • the wake-up preamble carried in the wake-up frame pre-configured by the auxiliary wake-up interface of the device that sends the wake-up frame is an uplink wake-up preamble, and the sending wake-up is performed.
  • the wake-up preamble of the device's auxiliary wake-up interface that is pre-configured for receiving the wake-up frame is the downlink wake-up preamble.
  • the processor when acquiring the first wake-up preamble, is specifically configured to: determine a target receiving device of the wake-up frame; determine a target wireless group to which the target receiving device belongs; and correspond to multiple wireless groups In the wake-up preamble, the calling preamble corresponding to the target radio group is selected as the first wake-up preamble.
  • a processing system 110 for waking up frames including a device 111 for transmitting a wake-up frame and a device 112 for receiving a wake-up frame, wherein the device 111 for transmitting the wake-up frame may specifically correspond to the above.
  • Second no The line device performs the method for the second wireless device to send the wake-up frame, and the device 112 that receives the wake-up frame may specifically correspond to the first wireless device, and perform the method for the first wireless device to receive the wake-up frame.
  • the device 111 that sends the wake-up frame may be an AP, and the device 112 that receives the wake-up frame may be a STA; or the device that sends the wake-up frame may be a STA, and the device that receives the wake-up frame may be an AP.
  • a computer readable storage medium comprising computer instructions which, when executed on a computer, cause the computer to perform the scheme of receiving a wake-up frame in any of the above embodiments.
  • a computer readable storage medium comprising computer instructions which, when executed by a computer, cause a computer to perform the scheme of transmitting a wake-up frame in any of the above embodiments.
  • the above embodiments it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • 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 invention are generated in whole or in part.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center by wire (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 such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a solid state disk (SSD)).
  • embodiments of the present application can be provided as a method, system, or computer program product.
  • the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment in combination of software and hardware.
  • the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

Landscapes

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

Abstract

一种接收唤醒帧的方法及设备，其中，该方法包括：第一无线设备在检测到唤醒帧时，对第一唤醒前导和第二唤醒前导进行相关操作，获得所述第一唤醒前导和所述第二唤醒前导的相关值，所述第一唤醒前导为所述唤醒帧中携带的唤醒前导，所述第二唤醒前导为所述第一无线设备的辅助唤醒接口预配置的唤醒前导；所述第一无线设备在所述第一唤醒前导和所述第二唤醒前导的相关值大于或等于预设值时，接收所述唤醒帧。采用本申请的方法及设备，可降低无线设备的功耗。

Description

一种接收唤醒帧的方法及设备
本申请要求在2017年3月13日提交中国专利局、申请号为201710146703.9、发明名称为《一种唤醒无线设备的方法和设备》的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及无线通信技术领域，尤其涉及一种接收唤醒帧的方法及设备。
背景技术
随着无线通信的发展，无线保真(WirelessFIdelity，WIFI)技术应运而生。目前，对于WIFI技术的应用场景一般如下：首先WIFI接入点(Access Point，AP)在一定覆盖区域内，提供WIFI网络，比如，WIFI路由器；然后，WIFI工作站(Station，STA)在WIFI AP的覆盖区域内，接入WIFI网络，比如，手机和平板电脑等终端。
在现有技术中，对于支持上述WIFI功能的AP和STA内部均设置有WIFI通信模块。由于WIFI通信模块的功耗较大，而AP和STA又有节省功耗的需求，因此，相关技术人员，提供了一种新的方案。在该方案中，如图1所示，在AP和STA内部各自设置一辅助唤醒接口，用于对对应的WIFI通信模块进行唤醒。其中，辅助唤醒接口的平均功耗大约为100uw，仅为WIFI通信模块平均功耗的0.1％。具体工作过程，如下：在AP和STA没有通信需求的情况下，AP和STA的WIFI通信模块进入深度休眠状态(在深度体眠状态下，WIFI通信模块的收发信机被关闭，WIFI通信模块的功耗接近为零)，辅助唤醒接口进入工作状态。仍可参照图1，当AP和STA需要进行通信时，主动发起通信的一方，比如AP，将首先激活自身的WIFI通信模块，然后，发送唤醒帧至接收方的辅助唤醒接口，比如，STA的辅助唤醒接口。而接收方的辅助唤醒接口在接收到发送方的唤醒帧后，将唤醒自身的WIFI通信模块，收发双方即可进行正常通信。具体的，在实际应用中，WIFI网络的空口中可能存在很多唤醒帧，每个无线设备的辅助唤醒接口(可以为AP的辅助唤醒接口，也可以为STA的辅助唤醒接口)可检测到多个唤醒帧。针对所检测到的每个唤醒帧，无线设备执行下述操作：接收所述唤醒帧；对所述唤醒帧进行解码，确定该唤醒唤是否为发送给自己的；如果确定唤醒帧为发送给自己的，则唤醒WIFI通信模块，否则，不执行任何操作。可见，在现有技术中，无线设备对所检测到的每个唤醒帧，均进行接收和解码操作，从而使得无线设备的功耗较大。
发明内容
本申请提供一种接收唤醒帧的方法及设备，以降低无线设备的功耗。
第一方面，提供一种接收唤醒帧的方法，包括：第一无线设备在检测到唤醒帧时，对第一唤醒前导和第二唤醒前导进行相关操作，获得所述第一唤醒前导和所述第二唤醒前导的相关值，所述第一唤醒前导为所述唤醒帧中携带的唤醒前导，所述第二唤醒前导为所述第一无线设备的辅助唤醒接口预配置的唤醒前导；所述第一无线设备在所述第一唤醒前导 和所述第二唤醒前导的相关值大于或等于预设值时，接收所述唤醒帧。
在本申请中，第一无线设备仅接收相关值大于等于预设值的唤醒帧，相对于现有技术中的，第一无线设备接收所检测到的所有唤醒帧，可降低无线设备的功耗。
在一种可能的设计中，所述方法还包括：所述第一无线设备在所述第一唤醒前导和所述第二唤醒前导的相关值小于所述预设值时，停止接收所述唤醒帧。
在一种可能的设计中，所述相关操作为内积运算，所述第一唤醒前导和所述第二唤醒前导的相关值为所述第一唤醒前导和所述第二唤醒前导的内积运算结果。
在一种可能的设计中，所述第一无线设备的辅助唤醒接口还配置有一个或多个第三唤醒前导，所述一个或多个第三唤醒前导用于携带在所述第一无线设备发送的唤醒帧中。
本申请通过为每个无线设备预设两个唤醒前导，一个用于携带，另一个用于接收。相对于现有技术每个无线设备在发送唤醒帧中，需首先获取目标接收设备的唤醒前导，本申请的方法，更易于实现，成本较低。
在一种可能的设计中，所述第一无线设备为无线保真接入点，所述第二唤醒前导为上行唤醒前导，所述第三唤醒前导为下行唤醒前导；或者，所述第一无线设备为无线保真工作站，所述第二唤醒前导为下行唤醒前导，所述第三唤醒前导为上行唤醒前导。
第二方面，提供一种发送唤醒帧的方法，包括：第二无线设备获取第一唤醒前导；所述第二无线设备生成唤醒帧，所述唤醒帧中携带有所述第一唤醒前导；所述第二无线设备发送所述唤醒帧。
在一种可能的设计中，所述第二无线设备获取第一唤醒前导，包括：所述第二无线设备确定所述唤醒帧的目标接收设备；所述第二无线设备获取所述目标接收设备的辅助唤醒接口预配置的唤醒前导；所述第二无线设备将所述目标接收设备的辅助唤醒接口预配置的唤醒前导，作为所述第一唤醒前导。
在一种可能的设计中，所述第二无线设备获取第一唤醒前导，包括：所述第二无线设备获取所述第二无线设备的辅助唤醒接口预配置的用于在唤醒帧中携带的唤醒前导，作为所述第一唤醒前导。
在一种可能的设计中，所述第二无线设备的辅助唤醒接口还预配置有用于接收唤醒帧的唤醒前导。
在一种可能的设计中，所述第二无线设备为无线保真接入点，所述第二无线设备的辅助唤醒接口预配置的用于在唤醒帧中携带的唤醒前导为下行唤醒前导，所述第二无线设备的辅助唤醒接口预配置的用于接收唤醒帧的唤醒前导为上行唤醒前导；或者所述第二无线设备为无线保真工作站，所述第二无线设备的辅助唤醒接口预配置的用于在唤醒帧中携带的唤醒前导为上行唤醒前导，所述第二无线设备的辅助唤醒接口预配置的用于接收唤醒帧的唤醒前导为下行唤醒前导。
在一种可能的设计中，所述第二无线设备获取第一唤醒前导，包括：所述第二无线设备确定所述唤醒帧的目标接收设备；所述第二无线设备确定所述目标接收设备所归属的目标无线组；所述第二无线设备从多个无线组分别对应的唤醒前导中，选择目标无线组对应的唤配前导，作为第一唤醒前导。
本申请第二方面以及第二方面任一种可能设计为与第一方面以及第一方面任一种可能设计相对应的发送侧的方法，具体的实施方式以及有益效果，可参见第一方面以及第一方面任一种可能的设计。
第三方面，提供一种接收唤醒帧的设备，包括：处理器，用于在检测到唤醒帧时，对第一唤醒前导和第二唤醒前导进行相关操作，获得所述第一唤醒前导和所述第二唤醒前导的相关值，所述第一唤醒前导为所述唤醒帧中携带的唤醒前导，所述第二唤醒前导为所述接收唤醒帧的设备的辅助唤醒接口预配置的唤醒前导；收发器，用于在所述第一唤醒前导和所述第二唤醒前导的相关值大于或等于预设值时，接收所述唤醒帧。
在一种可能的设计中，所述收发器，还用于：在所述第一唤醒前导和所述第二唤醒前导的相关值小于所述预设值时，停止接收所述唤醒帧。
在一种可能的设计中，所述相关操作为内积运算，所述第一唤醒前导和所述第二唤醒前导的相关值为所述第一唤醒前导和所述第二唤醒前导的内积运算结果。
在一种可能的设计中，所述接收唤醒帧的设备的辅助唤醒接口还配置有一个或多个第三唤醒前导，所述一个或多个第三唤醒前导用于携带在所述第一无线设备发送的唤醒帧中。
在一种可能的设计中，所述接收唤醒帧的设备为无线保真接入点，所述第二唤醒前导为上行唤醒前导，所述第三唤醒前导为下行唤醒前导；或者，所述接收唤醒帧的设备为无线保真工作站，所述第二唤醒前导为下行唤醒前导，所述第三唤醒前导为上行唤醒前导。
本申请第三方面以及第三方面任一种可能设计为与第一方面以及第一方面任一种可能设计相对应的设备，具体的实施方式以及有益效果，可参见第一方面以及第一方面任一种可能的设计。
第四方面，提供一种发送唤醒帧的设备，包括：处理器，用于获取第一唤醒前导，生成唤醒帧，所述唤醒帧中携带有所述第一唤醒前导；收发器，用于发送所述唤醒帧。
在一种可能的设计中，所述处理器在获取第一唤醒前导时，具体用于：确定所述唤醒帧的目标接收设备；获取所述目标接收设备的辅助唤醒接口预配置的唤醒前导；将所述目标接收设备的辅助唤醒接口预配置的唤醒前导，作为所述第一唤醒前导。
在一种可能的设计中，所述处理器在获取第一唤醒前导时，具体用于：获取所述第二无线设备的辅助唤醒接口预配置的用于在唤醒帧中携带的唤醒前导，作为所述第一唤醒前导。
在一种可能的设计中，所述第二无线设备的辅助唤醒接口还预配置有用于接收唤醒帧的唤醒前导。
在一种可能的设计中，所述发送唤醒帧的设备为无线保真接入点，所述发送唤醒帧的设备的辅助唤醒接口预配置的用于在唤醒帧中携带的唤醒前导为下行唤醒前导，所述发送唤醒帧的设备的辅助唤醒接口预配置的用于接收唤醒帧的唤醒前导为上行唤醒前导；或者所述发送唤醒帧的设备为无线保真工作站，所述发送唤醒帧的设备的辅助唤醒接口预配置的用于在唤醒帧中携带的唤醒前导为上行唤醒前导，所述发送唤醒帧的设备的辅助唤醒接口预配置的用于接收唤醒帧的唤醒前导为下行唤醒前导。
在一种可能的设计中，所述处理器在获取第一唤醒前导时，具体用于：确定所述唤醒帧的目标接收设备；确定所述目标接收设备所归属的目标无线组；从多个无线组分别对应的唤醒前导中，选择目标无线组对应的唤配前导，作为第一唤醒前导。
本申请第四方面以及第四方面任一种可能设计为与第二方面以及第二方面任一种可能设计相对应的设备，具体的实施方式以及有益效果，可参见第二方面以及第二方面任一种可能的设计。
第五方面，提供一种唤醒帧的处理系统，其特征在于，包括第三方面以及第三方面任一项可能设计中的接收唤醒帧的设备和第四方面以及第四方面任一项可能设计中的发送唤醒帧的设备。
在一种可能的设计中，所述发送唤醒帧的设备为无线保真接入点，所述接收唤醒帧的设备为无线保真工作站；或者，所述发送唤醒帧的设备为无线保真工作站，所述接收唤醒帧的设备为无线保真接入点。
第六方面，提供一种计算机可读存储介质，包括指令，当其在计算机上运行时，使得计算机执行上述第一方面以及第一方面任意一种可能设计中的方法。
第七方面，提供一种计算机可读存储介质，包括指令，当其在计算机上运行时，使得计算机执行第二方面以及第二方面任意一种可能设计中的方法。
由上可见，在本申请中，当第一无线设备接收唤醒帧时，将所述唤醒帧中携带的第一唤醒前导和所述第一无线设备的辅助唤醒接口预配置的第二唤醒前导进行相关操作，且当两者的相关值小于预设值时，可确定所述唤醒帧与第一无线设备是无关的，即所述唤醒帧并不是发送给第一无线设备的，此时，第一无线设备停止接收所述唤醒帧，相对于现有技术中的第一无线设备对所接收的所有唤醒帧均进行接收，可节省第一无线设备的功耗。
附图说明
图1为本申请提供的无线设备的一结构示意图；
图2为本申请提供的BSS的一示意图；
图3为本申请提供的无线设备的一结构示意图；
图4为本申请提供的接收唤醒帧的一流程示意图；
图5为本申请提供的唤醒前导的一示意图；
图6为本申请提供的BSS的一示意图；
图7为本申请提供的BSS的一示意图；
图8为本申请提供的BSS的一示意图；
图9为本申请提供的接收唤醒帧的设备的一结构示意图；
图10为本申请提供的唤醒帧的处理系统的一结构示意图。
具体实施方式
为了便于理解，示例的给出了与本申请相关概念的说明以供参考，如下所示：
基本服务集(Basic Service Set，BSS)：无线网络中的术语，用于描述在一个802.11协议中无线保真(Wireless Fideltiy，WLAN)中的一组相互通信的移动设备。
接入点(Access Point，AP)：支持802.11协议的接入点，主要用于在一定的覆盖区域内提供WIFI网络，比如WIFI路由器。
工作站(Station，STA)：支持802.11协议的工作站，主要用于在WIFI AP的覆盖区域内，接入WIFI网络，比如，手机、平板电脑、传感器节点以及可穿戴设备等终端。
802.11协议：国际电工电子工程学会(Institute of Electrical and Electronics Engineers,IEEE)为无线局域网络制定的标准。
下面结合附图，对本申请的技术方案进行介绍：
图2示出了本申请提供的一种可能的BSS，该BSS200包括AP201和STA202；
其中，AP201，用于在一定覆盖区域内提供WIFI网络；STA202，用于在AP201的覆盖区域内，接入WIFI网络。为了清楚起见，图2中仅示出了，一个AP和三个STA，而在本申请中，BSS200可包括一个或多个AP201以及一个或多个STA202。同样，为了清楚起见，图2中以智能手机代表STA22，在本申请中，STA202可为智能手机、便携式计算机、传感器节点以及可穿戴智能设备(比如智能手表以及运动手环)和植入式数字医疗传感器等智能设备。
图3示出了无线设备的一种结构示意图，图3中的无线设备可以为图2中的AP201，也可为图2中的STA202。如图3所示，该无线设备300包括但不限于处理器301、存储器302、主通信接口303、辅助唤醒(Wake-up Radio，WUR)接口304和天线305。
其中，当无线设备300为AP时，主通信接口303用于在一定范围内提供WIFI覆盖，而当无线设备300为STA时，主通信接口303用于在WIFI AP的覆盖范围内，接入WIFI网络。
辅助唤醒接口304，用于接收唤醒帧(Wakeup Packet,WUP)和唤醒主通信接口303。在本申请中，在常规状况下，主通信接口303处于深度体眠状态，在该状态下，主通信接口303的收发射机被关闭，功耗接近为零。而在无线设备300需要与外界进行通信时，由辅助唤醒接口304唤醒主通信接口303。
在本申请中，当主通信接口303处于深度体眠状态时，辅助唤醒接口304处于侦听状态(也称为工作状态)，用于侦听唤醒帧。而在主通信接口303处于唤醒状态时，辅助唤醒接口304可处于深度体眠状态，也可处于侦听状态。如果辅助唤醒接口304采用工作循环(Duty-Cycling)，即辅助唤醒接口304在工作状态和休眠状态之间不断切换，那么当主通信接口303处于深度体眠状态时，辅助唤醒接口304可能处于侦听状态(工作循环中的工作状态)，或者，辅助唤醒接口304也可能是处于休眠状态(工作循环中的休眠状态)。
在本申请中，主通信接口303与辅助唤醒接口304可共享一天线305，也可主通信接口303与辅助唤醒接口304各自对应不同的天线，尤其当主通信接口303与辅助唤醒接口304工作在不同的频段时。
在本申请中，无线设备300可以由一个片上系统(SoC)实现或者通过集成电路实现或者通过两个硬件模块联合实现。
在本申请中，如图2所示，当AP201要与STA202进行通信息，主动发起通信的一方，比如，AP201，需要首先发送唤醒帧，而被动通信的一方，比如，STA202，在检测到唤醒帧时，接收所述唤醒帧，然后对唤醒帧进行解码，判断是否与自身相关以及该唤醒帧的正确性和真实性，如果该唤醒帧是发送给STA202自己的，且该唤醒帧是正确且真实的，则唤醒自身的主通信接口，否则，不执行任何操作。
在本申请中，与一无线设备相关的唤醒帧，指可能发送至该无线设备的唤醒帧，即该无线设备可能是该唤醒帧的目标接收者，而与一无线设备无关的唤醒帧，指发送至除该无线设备外其它无线设备的唤醒帧，即该无线设备肯定不是该唤醒帧的目标接收者。
应当指出，本申请中涉及的多个，是指两个或两个以上。本申请描述的第一”、“第二”等词汇，仅用于区分描述，而不用于指示或暗示相对重要性，也不用于指示或暗示顺序。
图4为本申请提供的一种接收唤醒帧的流程，该流程中的第一无线设备可为图2中的AP201，第二无线设备可为图2中的STA202，或者，第一无线设备可为图2中的STA202， 第二无线设备可为图2中的AP201，如图4所示，包括：
步骤S41：第二无线设备发送唤醒帧。
在本申请中，如图5所示，所述唤醒帧主要由两部分组成，分别为唤醒前导(Wake-up Preamble)和介质访问控制(Medium Access Control，MAC)部分。所述唤醒前导主要用于帮助接收唤醒帧的无线设备，对唤醒帧的检测、符号同步以及AGC设置等，在采用OOK调制时，唤醒前导序列可以是由“0”和“1”组成的序列，例如，“1,0,1,0,1,0,1,0”，或者其它伪噪声序列(Pseudo-noise(PN)Sequence)；在采用BPSK调制时，唤醒前导序列可以是由“-1”和“1”组成的序列，例如，“-1,1,-1,1,-1,1,-1,1”，或者其它序列，例如，Walsh序列，Golay序列等。
所述MAC部分至少包括唤醒帧的接收者地址(Receive Address，RA)，所述接收者地址(RA)用于识别唤醒帧的目标接收者。所述接收者地址(RA)可以包括网络标识(Network ID)信息和/或目标设备的唤醒无线电标识(WUR ID)信息；或者所述接收者地址(RA)可以是网络标识(Network ID)和目标设备的唤醒无线电标识(WUR ID)的组合；或者所述接收者地址(RA)可以是目标设备的唤醒无线电标识(WUR ID)。所述目标设备的唤醒无线电标识(WUR ID)可以由AP或AC选择和分配，或者唤醒无线电标识可以在设备出厂时就设定好。所述网络标识(Network ID)可以用于识别所述唤醒帧所属的基本服务集(BSS)和/或关联的AP的信息，例如，BSS color或者BSSID。所述网络标识(Network ID)可以是所述目标设备的唤醒无线电标识(WUR ID)的一部分。
可选的，仍可参照图5，唤醒帧还可包括以下信息中的一个或多个：传统802.11前导(Legacy 802.11Preamble)、帧类型(Frame Type)、发送者地址(Transmit Address,TA)、控制信息(Control Info)、计数器信息(Counter)、帧认证信息(如MIC)和帧校验信息(如FCS)。其中，传统802.11前导(Legacy 802.11Preamble)可以用于后向兼容，使得传统Wi-Fi设备能据此判断当前帧为Wi-Fi帧，从而选择相应的信道侦听判决阈值和退避时间。所述帧类型信息(Frame Type)可以用于指示唤醒帧的类型，例如，指示唤醒帧(WUP)，或者指示单播的唤醒帧，或者指示广播的唤醒帧。所述发送者地址(TA)可以是发送者相关的信息，例如，BSS color，或者BSSID，或者MAC地址，或者MAC地址的一部分。所述控制信息(Control Info)可以用于指示控制命令和链路参数等信息。所述计数器信息(Counter)可以用于帮助接收端实现所收到唤醒帧的正确性校验和/或真实性认证。所述认证信息(MIC)可以用于帮助接收端认证所收到的唤醒帧的真实性。所述帧校验序列(FCS)可以用于帮助接收端校验所收到的唤醒帧的正确性。
需要指出，在本申请中，所述唤醒前导(Wake-up Preamble)还可称作：唤醒前导序列(Wake-up Preamble Sequence)，前导序列(Preamble Sequence)，前导(Preamble)，导频序列(Preamble Sequence)，或者物理导频(Physical Preamble)。
在本申请中，为了便于区分，将所述唤醒帧中携带的唤醒前导可称为第一唤醒前导，所述第一唤醒前导仅用于与其它唤醒前导相区分，而不用于指示或暗示相对重要性，也不用于指示或暗示顺序。
步骤S42：第一无线设备在检测到所述唤醒帧时，对第一唤醒前导和第二唤醒前导进行相关操作，获得所述第一唤醒前导和所述第二唤醒前导的相关值，所述第二唤醒前导为所述第一无线设备的辅助唤醒接口预配置的唤醒前导；
在本申请中，所述相关操作可以但不限于为内积运算，所述第一唤醒前导和所述第二 唤醒前导的相关值可以但不限于为所述第一唤醒前导和所述第二唤醒前导的内积运算结果。根据需要，所述相关操作还可以为其他运算方式。
示例的，第一唤醒前导为“0,1,0,1”，第二唤醒前导为“1,0,1,0”，那么第一唤醒前导和第二唤醒前导的内积运算过程可为“0*1+1*0+0*1+1*0＝0，第一唤醒前导和第二唤醒前导的内积运算结果为零(这种情况下称为第一唤醒前导和第二唤醒前导是正交的)。
步骤S43：第一无线设备在所述第一唤醒前导和所述第二唤醒前导的相关值大于或等于预设值时，接收所述唤醒帧。
步骤S44：所述第一无线设备在所述第一唤醒前导和所述第二唤醒前导的相关值小于所述预设值时，停止接收所述唤醒帧。
在本申请中，当第一无线设备接收唤醒帧时，将所述唤醒帧中携带的第一唤醒前导和所述第一无线设备的辅助唤醒接口预配置的第二唤醒前导进行相关操作，且当两者的相关值小于预设值时，可确定所述唤醒帧与第一无线设备是无关的，即所述唤醒帧并不是发送给第一无线设备的，此时，第一无线设备停止接收所述唤醒帧，相对于现有技术中的第一无线设备对所接收的所有唤醒帧均进行接收，可节省第一无线设备的功耗。
在本申请的一种实施方式中，预先为BSS内的无线设备的辅助唤醒接口配置唤醒前导，其中，所述无线设备可为AP，也可为STA；且任两个无线设备的辅助唤醒接口的唤醒前导为不同的，所述不同，是指任两个无线设备的辅助唤醒接口的唤醒前导之间的相关值，小于预设值。比如，一个BSS内的任两个无线设备的辅助唤醒接口的唤醒前导可为正交的，即两者之间的相关值为零。
具体的过程如下：所述第二无线设备确定所述唤醒帧的目标接收设备；所述第二无线设备获取所述目标接收设备的辅助唤醒接口预配置的唤醒前导；所述第二无线设备将所述目标接收设备的辅助唤醒接口预配置的唤醒前导，作为所述第一唤醒前导；所述第二无线设备生成唤醒帧，所述唤醒帧中携带有所述第一唤醒前导；所述第二无线设备发送所述唤醒帧。第一无线设备在检测到唤醒帧时，对所述唤醒帧中携带的第一唤醒前导和第一无线设备的辅助唤醒接口预配置的第二唤醒前导进行相关操作；如果两者的相关值大于等于预设值，接收所述唤醒帧，否则，停止接收所述唤醒帧。
在本申请中，将以第一无线设备为STA，第二无线设备为AP为例，详细说明本申请的过程；当然，在本申请中，第一无线设备也可为AP，第二无线设备也可为STA，过程与上述相似类，在此不再赘述。
示例的，如图6所示，整个BSS内，包括一个AP和多个STA。
其中，AP侧存储有与其通信的所有STA辅助唤醒接口的唤醒前导，在本申请中，当AP要与一STA进行通信时，为了方便描述，以下将该STA称为目标STA，首先获取目标STA的辅助唤醒接口的唤醒前导，以下称为第一唤醒前导；然后，将该第一唤醒前导携带到唤醒帧中，发送该唤醒帧至STA侧。
在本申请中，仍可参照图6，对于目标STA和非目标STA均检测到唤醒帧。针对目标STA，由于唤醒帧中携带的第一唤醒前导即为该目标STA的辅助唤醒接口所预配置的唤醒前导，那么两者的内积肯定大于预设值，因此，目标STA可接收到该唤醒帧；
而针对非目标STA，由于预配置的不同无线设备的辅助唤醒接口的唤醒前导之间为不同的，那么，由于唤醒帧中携带的为目标STA的辅助唤醒接口的第一唤醒前导，那么对于非目标STA，在对唤醒帧中携带的第一唤醒前导和自身的辅助唤醒接口的唤醒前导进行内 积操作时，两者的相关值势必是小于预设值的，此时对于非目标STA将停止接收唤醒帧。
可见，在本申请中，在BSS中，仅目标STA会接收该唤醒帧，对于非目标STA不会接收该唤醒帧，相对于现有技术中，BSS内的STA对所检测到的唤醒帧，均进行接收，采用申请的方法，可节省非目标STA的功耗。
在本申请中，可预先给BSS内的无线设备分为不同的组，同一组内无线设备的辅助唤醒接口的唤醒前导相同，而不同组内无线设备的辅助唤醒接口的唤醒前导不同，所谓不同，是指任两个组的唤醒前导之间的相关值小于预设值，比如，任两个组的唤醒前导彼此正交。
具体的过程，如下：第二无线设备确定所述唤醒帧的目标接收设备；第二无线设备确定所述目标接收设备所归属的目标无线组；第二无线设备从多个无线组的唤醒前导中，选择目标无线组的唤配前导，作为第一唤醒前导；第二无线设备生成唤醒帧，所述唤醒帧中携带有所述第一唤醒前导；第二无线设备发送所述唤醒帧。第一无线设备在检测到所述唤醒帧时，对所述唤醒帧中携带的第一唤醒前导和所述第一无线设备辅助唤醒接口预配置的第二唤醒前导进行相关操作，且如果两者的相关值大于等于预设值，接收所述唤醒帧，否则，停止接收所述唤醒帧，所述第一无线设备辅助唤醒接口预配置的第二唤醒前导为所述第一无线设备所归属无线组的唤醒前导。
示例的，如图7所示，将整个BSS内的无线设备分为三组，分别为第一组、第二组和第三组，第一组包括一个或多个AP，第二组包括一个或多个STA，第三组包括一个或多个STA。
在本申请中，以第一组的AP与第二组内的STA通信为例，详细说明本申请的过程：
首先第一组的AP，确定目标STA，然后确定目标STA的所归属的无线组，即第二组；然后AP在多个无线组的唤醒前导中，查找第二组的唤醒前导；最后，在唤醒帧中携带第二组的唤醒前导，发送所述唤醒帧。
针对第二组的所有STA，在检测至该唤醒帧时，可对该唤醒帧中携带的第二组的唤醒前导与自身的唤醒前导(也即第二组的唤醒前导)进行相关操作，可发现两者的相关值大于预设值，此时接收所述唤醒帧。针对第三组的所有STA，在检测到该唤醒帧时，可对该唤醒帧中携带的第二组的唤醒前导与自身的唤醒前导(也即第三组的唤醒前导)进行相关操作，可发现两者的相关值小于预设值，此时停止接收所述唤醒帧。
可见，采用本申请的方法，对于除目标STA所归属的组以外的其它组内的STA，均可停止接收唤醒帧，从而节省了STA的功耗。
在本申请中，可预先给BSS内的每个无线设备配置两个唤醒前导，分别为在唤醒帧中携带的唤醒前导和接收唤醒帧的唤醒前导。具体的过程如下：第二无线设备获取所述第二无线设备的辅助唤醒接口预配置的用于在唤醒帧中携带的唤醒前导；第二无线设备将所述第二无线设备的辅助唤醒接口预配置的用于在唤醒帧中携带的唤醒前导，作为所述第一唤醒前导；第二无线设备生成唤醒帧，所述唤醒帧中携带有所述第一唤醒前导；第二无线设备发送所述唤醒帧。第一无线设备在检测到所述唤醒帧时，对唤醒帧中携带的第一唤醒前导和所述第一无线设备的辅助唤醒接口预配置的用于接收唤醒帧的第二唤醒前导进行相关操作；且如果两者的相关值大于等于预设值，接收所述唤醒帧，否则，停止接收所述唤醒帧。
针对AP，用于在唤醒帧中携带的唤醒前导为下行唤醒前导，用于接收唤醒帧的唤醒前导为上行唤醒前导。针对STA，用于在唤醒帧中携带的唤醒前导为上行唤醒前导，用于接 收唤醒帧的唤醒前导为下行唤醒前导。
示例的，如图8所示，整个BSS内，包括一个AP和二个STA，二个STA分别为第一STA和第二STA。其中，预先给AP和STA的辅助唤醒接口配置有上行唤醒前导和下行唤醒前导。
在本申请中，当第一STA与AP通信时，第二STA可获取上行前导，生成唤醒帧，所述唤醒帧中携带有上行前导；然后发送所述唤醒帧。而在AP检测到该唤醒帧时，将对唤醒帧中携带的上行前导与自身辅助唤醒接口预配置的上行唤醒前导进行相关操作，可以看出两者的相关值将大于预设值，AP将接收所述唤醒帧。而对于第二STA，在检测到该唤醒帧时，将对唤醒帧中携带的上行唤醒前导和自身辅助唤醒接口预配置的下行唤醒前导进行相关操作，可以看出两者的相关值小于预设值，第二STA将停止接收唤醒帧。
在本申请中，在第一STA和第二STA接收到所述唤醒帧后，将对唤醒帧的MAC部分进行解调(可参照图5中的MAC部分)，查看所述所述MAC部分的接收者地址与自身的地址是否相匹配，如果相匹配，将唤醒自身的主通信接口，否则，不执行任何操作。在本申请中，由于第一AP与第一STA中进行通信，因此所述唤醒帧中的MAC部分将携带第一STA的辅助唤醒接口的接收地址(例如，该辅助唤醒接口的标识信息，或者该STA的标识信息)，因此，第一STA在接收到唤醒帧后，将唤醒第一STA的主通信接口；而对于第二STA，由于所述唤醒帧的MAC部分携带的接收者地址与自身地址不匹配，将不再执行唤醒主通信接口的操作。
需要说明的，在本申请中，所述唤醒帧的唤醒前导的调制编码方式较简单，比如，OOK调制或BPSK调制等。所述唤醒帧的MAC部分采用较复杂的信道编码，比如，重复编码以及二进制卷积码等。因此，对唤醒帧的MAC部分进行处理，其功耗要大于对唤醒帧的唤醒前导部分的处理。
在本申请中，通过对唤醒帧的唤醒前导部分进行处理，即可过滤大部的无关唤醒帧。相对于现有技术中的，每个无线设备，只有在接收唤醒帧后，对唤醒帧的MAC部分进行解码，获取接收者地址后，才能得知是否与自己相关的唤醒帧，采用本申请的方法，可节省无线设备的功耗。尤其对于基于WIFI的物联网和可穿戴式WIFI网络，在可穿戴式WIFI网络中手机或其它智能终端作为虚拟接入点(SoftAP，或mobile AP)，提供WIFI网络。可穿戴式设备作为STA，接入虚拟接入点。由于可穿戴设备中的STA是由小容量电池供电，对低功耗和长时间电池续般航有较高的需求。因此，将本申请的方法，应用于WIFI物联网和可穿戴式WIFI网络内，效果尤其明显。
应当指出，在本申请中，针对多个BSS的情况，相邻BSS(Overlapping Basic Service Set，OBSS)使用的上行唤醒前导可以相同，也可以不同，下行唤醒前导可以相同，也可以不同。比如，基本服务集一里的上行唤醒前导与基本服务集二里的上行唤醒前导是相同的，而基本服务集一里的下行唤醒前导与基本服务集二里的下行唤醒前导是不同的；所述不同是指两个下行唤醒前导是正交的，或者是指两个下行唤醒前导的互相关值小于所述预设的一个门限值。又例如，基本服务集一里的上行唤醒前导与基本服务集二里的上行唤醒前导是不同的，并且基本服务集一里的下行唤醒前导与基本服务集二里的下行唤醒前导也是不同的；所述不同是指两个上行(或者下行)唤醒前导是正交的，或者是指两个上行(或者下行)唤醒前导的互相关值小于所述预设的一个门限值V1。
在本申请中，如图9所示，还提供一种接收唤醒帧的设备900，可以包括：
处理器901，用于在检测到唤醒帧时，对第一唤醒前导和第二唤醒前导进行相关操作，获得所述第一唤醒前导和所述第二唤醒前导的相关值，所述第一唤醒前导为所述唤醒帧中携带的唤醒前导，所述第二唤醒前导为所述接收唤醒帧的设备的辅助唤醒接口预配置的唤醒前导；
收发器902，用于在所述第一唤醒前导和所述第二唤醒前导的相关值大于或等于预设值时，接收所述唤醒帧。
可选的，所述收发器902，还用于在所述第一唤醒前导和所述第二唤醒前导的相关值小于所述预设值时，停止接收所述唤醒帧。
具体的，所述相关操作为内积运算，所述第一唤醒前导和所述第二唤醒前导的相关值为所述第一唤醒前导和所述第二唤醒前导的内积运算结果。
可选的，所述接收唤醒帧的设备的辅助唤醒接口还配置有一个或多个第三唤醒前导，所述一个或多个第三唤醒前导用于在所述接收唤醒帧的设备发送的唤醒帧中携带。
可选的，所述接收唤醒帧的设备为无线保真接入点，所述第二唤醒前导为上行唤醒前导，所述第三唤醒前导为下行唤醒前导；或者，所述接收唤醒帧的设备为无线保真工作站，所述第二唤醒前导为下行唤醒前导，所述第三唤醒前导为上行唤醒前导。
关于上述接收唤醒帧的设备900对唤醒帧的具体处理过程，可参见上述关于第一设备接收唤醒帧的记载，在此不再赘述。
在本申请中，如图9所示，还提供一种发送唤醒帧的设备900，包括：
处理器901，用于获取第一唤醒前导，生成唤醒帧，所述唤醒帧中携带有所述第一唤醒前导；
收发器902，用于发送所述唤醒帧。
可选的，所述处理器在获取第一唤醒前导时，具体用于：确定所述唤醒帧的目标接收设备；获取所述目标接收设备的辅助唤醒接口预配置的唤醒前导；将所述目标接收设备的辅助唤醒接口预配置的唤醒前导，作为所述第一唤醒前导。
可选的，所述处理器在获取第一唤醒前导时，具体用于：获取所述发送唤醒帧的设备的辅助唤醒接口预配置的用于在唤醒帧中携带的唤醒前导，作为所述第一唤醒前导。所述发送唤醒帧的设备的辅助唤醒接口还预配置有用于接收唤醒帧的唤醒前导。
可选的，所述发送唤醒帧的设备为无线保真接入点，所述发送唤醒帧的设备的辅助唤醒接口预配置的用于在唤醒帧中携带的唤醒前导为下行唤醒前导，所述发送唤醒帧的设备的辅助唤醒接口预配置的用于接收唤醒帧的唤醒前导为上行唤醒前导；
可选的，所述发送唤醒帧的设备为无线保真工作站，所述发送唤醒帧的设备的辅助唤醒接口预配置的用于在唤醒帧中携带的唤醒前导为上行唤醒前导，所述发送唤醒帧的设备的辅助唤醒接口预配置的用于接收唤醒帧的唤醒前导为下行唤醒前导。
可选的，所述处理器在获取第一唤醒前导时，具体用于：确定所述唤醒帧的目标接收设备；确定所述目标接收设备所归属的目标无线组；从多个无线组所对应的的唤醒前导中，选择目标无线组所对应的唤配前导，作为第一唤醒前导。
关于上述发送唤醒帧的设备900对唤醒帧的具体处理过程，可参见上述关于第二设备发送唤醒帧的记载，在此不再赘述。
在本申请中，如图10所示，还提供一种唤醒帧的处理系统110，包括发送唤醒帧的设备111和接收唤醒帧的设备112，其中，发送唤醒帧的设备111可具体对应于上述第二无 线设备，执行上述第二无线设备发送唤醒帧的方法，接收唤醒帧的设备112可具体对应于上述第一无线设备，执行上述第一无线设备接收唤醒帧的方法。
应当指出，发送唤醒帧的设备111可为AP，接收唤醒帧的设备112可为STA；或者，所述发送唤醒帧的设备可为STA，接收唤醒帧的设备可为AP。
本申请中，还提供一种包括计算机指令的计算机可读存储介质，当计算机指令在计算机上运行时，使得计算机可以执行上述任一实施例中的接收唤醒帧的方案。
本申请中，还提供一种包括计算机指令的计算机可读存储介质，当计算机指令其在计算机上运行时，使得计算机可以执行上述任一实施例中的发送唤醒帧的方案。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本发明实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘Solid State Disk(SSD))等。
本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和 范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (26)

  1. 一种接收唤醒帧的方法，其特征在于，包括：
    第一无线设备在检测到唤醒帧时，对第一唤醒前导和第二唤醒前导进行相关操作，获得所述第一唤醒前导和所述第二唤醒前导的相关值，所述第一唤醒前导为所述唤醒帧中携带的唤醒前导，所述第二唤醒前导为所述第一无线设备的辅助唤醒接口预配置的唤醒前导；
    所述第一无线设备在所述第一唤醒前导和所述第二唤醒前导的相关值大于或等于预设值时，接收所述唤醒帧。
  2. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    所述第一无线设备在所述第一唤醒前导和所述第二唤醒前导的相关值小于所述预设值时，停止接收所述唤醒帧。
  3. 根据权利要求1或2所述的方法，其特征在于，所述相关操作为内积运算，所述第一唤醒前导和所述第二唤醒前导的相关值为所述第一唤醒前导和所述第二唤醒前导的内积运算结果。
  4. 根据权利要求1至3任一项所述的方法，其特征在于，所述第一无线设备的辅助唤醒接口还配置有一个或多个第三唤醒前导，所述一个或多个第三唤醒前导用于携带在所述第一无线设备发送的唤醒帧中。
  5. 根据权利要求4所述的方法，其特征在于，所述第一无线设备为无线保真接入点，所述第二唤醒前导为上行唤醒前导，所述第三唤醒前导为下行唤醒前导；
    或者，所述第一无线设备为无线保真工作站，所述第二唤醒前导为下行唤醒前导，所述第三唤醒前导为上行唤醒前导。
  6. 一种发送唤醒帧的方法，其特征在于，包括：
    第二无线设备获取第一唤醒前导；
    所述第二无线设备生成唤醒帧，所述唤醒帧中携带有所述第一唤醒前导；
    所述第二无线设备发送所述唤醒帧。
  7. 根据权利要求6所述的方法，其特征在于，所述第二无线设备获取第一唤醒前导，包括：
    所述第二无线设备确定所述唤醒帧的目标接收设备；
    所述第二无线设备获取所述目标接收设备的辅助唤醒接口预配置的唤醒前导；
    所述第二无线设备将所述目标接收设备的辅助唤醒接口预配置的唤醒前导，作为所述第一唤醒前导。
  8. 根据权利要求6所述的方法，其特征在于，所述第二无线设备获取第一唤醒前导，包括：
    所述第二无线设备获取所述第二无线设备的辅助唤醒接口预配置的用于在唤醒帧中携带的唤醒前导，作为所述第一唤醒前导。
  9. 根据权利要求8所述的方法，其特征在于，所述第二无线设备的辅助唤醒接口还预配置有用于接收唤醒帧的唤醒前导。
  10. 根据权利要求9所述的方法，其特征在于，所述第二无线设备为无线保真接入点，所述第二无线设备的辅助唤醒接口预配置的用于在唤醒帧中携带的唤醒前导为下行唤醒 前导，所述第二无线设备的辅助唤醒接口预配置的用于接收唤醒帧的唤醒前导为上行唤醒前导；或者
    所述第二无线设备为无线保真工作站，所述第二无线设备的辅助唤醒接口预配置的用于在唤醒帧中携带的唤醒前导为上行唤醒前导，所述第二无线设备的辅助唤醒接口预配置的用于接收唤醒帧的唤醒前导为下行唤醒前导。
  11. 根据权利要求6所述的方法，其特征在于，所述第二无线设备获取第一唤醒前导，包括：
    所述第二无线设备确定所述唤醒帧的目标接收设备；
    所述第二无线设备确定所述目标接收设备所归属的目标无线组；
    所述第二无线设备从多个无线组分别对应的唤醒前导中，选择目标无线组对应的唤配前导，作为第一唤醒前导。
  12. 一种接收唤醒帧的设备，其特征在于，包括：
    处理器，用于在检测到唤醒帧时，对第一唤醒前导和第二唤醒前导进行相关操作，获得所述第一唤醒前导和所述第二唤醒前导的相关值，所述第一唤醒前导为所述唤醒帧中携带的唤醒前导，所述第二唤醒前导为所述接收唤醒帧的设备的辅助唤醒接口预配置的唤醒前导；
    收发器，用于在所述第一唤醒前导和所述第二唤醒前导的相关值大于或等于预设值时，接收所述唤醒帧。
  13. 根据权利要求12所述的设备，其特征在于，所述收发器，还用于：在所述第一唤醒前导和所述第二唤醒前导的相关值小于所述预设值时，停止接收所述唤醒帧。
  14. 根据权利要求12或13所述的设备，其特征在于，所述相关操作为内积运算，所述第一唤醒前导和所述第二唤醒前导的相关值为所述第一唤醒前导和所述第二唤醒前导的内积运算结果。
  15. 根据权利要求12至14任一项所述的设备，其特征在于，所述接收唤醒帧的设备的辅助唤醒接口还配置有一个或多个第三唤醒前导，所述一个或多个第三唤醒前导用于携带在所述第一无线设备发送的唤醒帧中。
  16. 根据权利要求15所述的设备，其特征在于，所述接收唤醒帧的设备为无线保真接入点，所述第二唤醒前导为上行唤醒前导，所述第三唤醒前导为下行唤醒前导；
    或者，所述接收唤醒帧的设备为无线保真工作站，所述第二唤醒前导为下行唤醒前导，所述第三唤醒前导为上行唤醒前导。
  17. 一种发送唤醒帧的设备，其特征在于，包括：
    处理器，用于获取第一唤醒前导，生成唤醒帧，所述唤醒帧中携带有所述第一唤醒前导；
    收发器，用于发送所述唤醒帧。
  18. 根据权利要求17所述的设备，其特征在于，所述处理器在获取第一唤醒前导时，具体用于：
    确定所述唤醒帧的目标接收设备；
    获取所述目标接收设备的辅助唤醒接口预配置的唤醒前导；
    将所述目标接收设备的辅助唤醒接口预配置的唤醒前导，作为所述第一唤醒前导。
  19. 根据权利要求17所述的设备，其特征在于，所述处理器在获取第一唤醒前导时， 具体用于：
    获取所述第二无线设备的辅助唤醒接口预配置的用于在唤醒帧中携带的唤醒前导，作为所述第一唤醒前导。
  20. 根据权利要求19所述的设备，其特征在于，所述第二无线设备的辅助唤醒接口还预配置有用于接收唤醒帧的唤醒前导。
  21. 根据权利要求20所述的设备，其特征在于，所述发送唤醒帧的设备为无线保真接入点，所述发送唤醒帧的设备的辅助唤醒接口预配置的用于在唤醒帧中携带的唤醒前导为下行唤醒前导，所述发送唤醒帧的设备的辅助唤醒接口预配置的用于接收唤醒帧的唤醒前导为上行唤醒前导；或者
    所述发送唤醒帧的设备为无线保真工作站，所述发送唤醒帧的设备的辅助唤醒接口预配置的用于在唤醒帧中携带的唤醒前导为上行唤醒前导，所述发送唤醒帧的设备的辅助唤醒接口预配置的用于接收唤醒帧的唤醒前导为下行唤醒前导。
  22. 根据权利要求17所述的设备，其特征在于，所述处理器在获取第一唤醒前导时，具体用于：
    确定所述唤醒帧的目标接收设备；
    确定所述目标接收设备所归属的目标无线组；
    从多个无线组分别对应的唤醒前导中，选择目标无线组对应的唤配前导，作为第一唤醒前导。
  23. 一种唤醒帧的处理系统，其特征在于，包括如权利要求12至16任一项所述的接收唤醒帧的设备和如权利要求17至22任一项所述的发送唤醒帧的设备。
  24. 根据权利要求23所述的系统，其特征在于，所述发送唤醒帧的设备为无线保真接入点，所述接收唤醒帧的设备为无线保真工作站；
    或者，所述发送唤醒帧的设备为无线保真工作站，所述接收唤醒帧的设备为无线保真接入点。
  25. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中包括指令，当所述指令在计算机上运行时，使得计算机执行如权利要求1至5任意一项所述的方法。
  26. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中包括指令，当所述指令在计算机上运行时，使得计算机执行如权利要求6至11任意一项所述的方法。
PCT/CN2017/087044 2017-03-13 2017-06-02 一种接收唤醒帧的方法及设备 WO2018166076A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201780035240.7A CN109314946B (zh) 2017-03-13 2017-06-02 一种接收唤醒帧的方法及设备

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710146703 2017-03-13
CN201710146703.9 2017-03-13

Publications (1)

Publication Number Publication Date
WO2018166076A1 true WO2018166076A1 (zh) 2018-09-20

Family

ID=63522683

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/087044 WO2018166076A1 (zh) 2017-03-13 2017-06-02 一种接收唤醒帧的方法及设备

Country Status (2)

Country Link
CN (1) CN109314946B (zh)
WO (1) WO2018166076A1 (zh)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101087220A (zh) * 2006-06-09 2007-12-12 中国科学院软件研究所 无线传感器网络mac层监听休眠方法
CN102685780A (zh) * 2012-05-16 2012-09-19 姚国良 一种无线传感器网络信道接入和批量数据传输方法
CN102685860A (zh) * 2012-05-04 2012-09-19 华为终端有限公司 数据发送、接收的方法与装置
US20160374019A1 (en) * 2015-06-22 2016-12-22 Intel Corporation Apparatus, system and method of communicating a wakeup packet

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7106814B2 (en) * 2003-04-30 2006-09-12 Motorola, Inc. Method and wireless device employing a preamble to initiate communications

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101087220A (zh) * 2006-06-09 2007-12-12 中国科学院软件研究所 无线传感器网络mac层监听休眠方法
CN102685860A (zh) * 2012-05-04 2012-09-19 华为终端有限公司 数据发送、接收的方法与装置
CN102685780A (zh) * 2012-05-16 2012-09-19 姚国良 一种无线传感器网络信道接入和批量数据传输方法
US20160374019A1 (en) * 2015-06-22 2016-12-22 Intel Corporation Apparatus, system and method of communicating a wakeup packet

Also Published As

Publication number Publication date
CN109314946B (zh) 2020-09-18
CN109314946A (zh) 2019-02-05

Similar Documents

Publication Publication Date Title
US11343766B2 (en) Method for indicating downlink service data and device
CN108738109B (zh) 一种站点唤醒方法及站点
US20200382624A1 (en) Information processing apparatus and information processing method
CN107889199B (zh) 一种状态转换方法及装置
EP3499977B1 (en) Method and device for sending and receiving wur frame
US8902803B2 (en) Systems and methods for reducing collisions after traffic indication map paging
US10667293B2 (en) Information processing device, information processing method, and program
WO2018076988A1 (zh) 唤醒方法和装置
JP2021502028A (ja) ２パートのウェイクアップ信号
JP2022550159A (ja) ウェイクアップ信号検出方法および装置
WO2019061115A1 (zh) 一种非授权频谱上的载波切换方法、基站及终端设备
WO2021102859A1 (zh) 同步信号块指示方法及通信装置
CN116548027A (zh) 无线通信的方法及设备
CN109891946B (zh) 通信接口的唤醒方法及设备、辅助唤醒接口的标识配置方法及设备
WO2018171576A1 (zh) 唤醒站点的方法和站点
EP3490310B1 (en) Method and device for transmitting data
WO2018233646A1 (zh) 唤醒方法、接入点和站点
WO2018166076A1 (zh) 一种接收唤醒帧的方法及设备
KR102358364B1 (ko) 무선 웨이크업 패킷을 송신 및 수신하는 방법 및 디바이스
WO2018171087A1 (zh) 无线唤醒的方法、控制设备和站点设备
WO2018171591A1 (zh) 一种用来唤醒设备的方法及装置
CN109565783B (zh) 一种发送唤醒帧的方法及设备
WO2023138510A1 (zh) 配置确定方法、装置、终端及网络侧设备
WO2023207990A1 (zh) 信号传输的方法和通信装置
CN114762393B (zh) 一种多连接设备的站点唤醒方法、装置及介质

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17901088

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17901088

Country of ref document: EP

Kind code of ref document: A1