CN109314946B

CN109314946B - Method and equipment for receiving wake-up frame

Info

Publication number: CN109314946B
Application number: CN201780035240.7A
Authority: CN
Inventors: 程勇; 方平; 庞高昆; 李小仙
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-03-13
Filing date: 2017-06-02
Publication date: 2020-09-18
Anticipated expiration: 2037-06-02
Also published as: WO2018166076A1; CN109314946A

Abstract

A method and a device for receiving a wakeup frame are provided, wherein the method comprises the following steps: when a first wireless device detects a wakeup frame, performing a correlation operation on a first wakeup preamble and a second wakeup preamble to obtain a correlation value of the first wakeup preamble and the second wakeup preamble, where the first wakeup preamble is a wakeup preamble carried in the wakeup frame, and the second wakeup preamble is a wakeup preamble preconfigured by an auxiliary wakeup interface of the first wireless device; the first wireless device receives the wakeup frame when a correlation value of the first wakeup preamble and the second wakeup preamble is greater than or equal to a preset value. By adopting the method and the equipment, the power consumption of the wireless equipment can be reduced.

Description

Method and equipment for receiving wake-up frame

This application claims priority from a chinese patent application filed on 2017, 3, 13, under the name of 201710146703.9 entitled method and apparatus for waking up a wireless device, the entire contents of which are incorporated herein by reference.

Technical Field

The present application relates to the field of wireless communications technologies, and in particular, to a method and a device for receiving a wakeup frame.

Background

With the development of wireless communication, wireless fidelity (WIFI) technology has come to be developed. At present, the application scenarios for the WIFI technology are generally as follows: firstly, a WIFI Access Point (AP) provides a WIFI network, such as a WIFI router, in a certain coverage area; then, the WIFI workstation (STA) accesses a WIFI network, such as a mobile phone and a tablet computer, in the coverage area of the WIFI ap.

In the prior art, a WIFI communication module is provided inside both the AP and the STA that support the above WIFI function. Because the power consumption of the WIFI communication module is large, and the AP and the STA have the requirement of saving the power consumption, related technical personnel provide a new scheme. In this scheme, as shown in fig. 1, an auxiliary wakeup interface is respectively provided inside the AP and the STA, and is used for waking up the corresponding WIFI communication module. The average power consumption of the auxiliary wake-up interface is about 100uw and is only 0.1% of the average power consumption of the WIFI communication module. The specific working process is as follows: under the condition that the AP and the STA do not have communication requirements, the WIFI communication modules of the AP and the STA enter a deep sleep state (in the deep sleep state, a transceiver of the WIFI communication module is closed, the power consumption of the WIFI communication module is close to zero), and an auxiliary awakening interface enters a working state. Still referring to fig. 1, when the AP and the STA need to communicate, a party actively initiating communication, such as the AP, will first activate its WIFI communication module, and then send a wakeup frame to an auxiliary wakeup interface of a receiving party, such as an auxiliary wakeup interface of the STA. And after receiving the awakening frame of the sender, the auxiliary awakening interface of the receiver awakens the WIFI communication module of the receiver, and the transceiver and the receiver can carry out normal communication. Specifically, in practical applications, a plurality of wake-up frames may exist in an air interface of the WIFI network, and 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 the plurality of wake-up frames. For each wake-up frame detected, the wireless device performs the following: receiving the wake-up frame; decoding the awakening frame and determining whether the awakening frame is sent to the awakening frame; and if the awakening frame is determined to be sent to the WIFI communication module, awakening the WIFI communication module, and otherwise, not executing any operation. As can be seen, 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.

Disclosure of Invention

The application provides a method and equipment for receiving a wake-up frame, so as to reduce the power consumption of wireless equipment.

In a first aspect, a method for receiving a wakeup frame is provided, including: when a first wireless device detects a wakeup frame, performing a correlation operation on a first wakeup preamble and a second wakeup preamble to obtain a correlation value of the first wakeup preamble and the second wakeup preamble, where the first wakeup preamble is a wakeup preamble carried in the wakeup frame, and the second wakeup preamble is a wakeup preamble preconfigured by an auxiliary wakeup interface of the first wireless device; the first wireless device receives the wakeup frame when a correlation value of the first wakeup preamble and the second wakeup preamble is greater than or equal to a preset value.

In the application, the first wireless device only receives the wake-up frames with the correlation values greater than or equal to the preset value, and compared with the prior art in which the first wireless device receives all the detected wake-up frames, the power consumption of the wireless device can be reduced.

In one possible design, the method further includes: and the first wireless equipment stops receiving the awakening frame when the correlation value of the first awakening precursor and the second awakening precursor is smaller than the preset value.

In one possible design, the correlation operation is an inner product operation, and a correlation value of the first wake-up preamble and the second wake-up preamble is an inner product operation result of the first wake-up preamble and the second wake-up preamble.

In one possible design, the secondary 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 used to be carried in a wake-up frame sent by the first wireless device.

Two wake-up preambles are preset for each wireless device, one for carrying and the other for receiving. Compared with the prior art that each wireless device needs to acquire the awakening preamble of the target receiving device firstly in the process of sending the awakening frame, the method is easier to implement and lower in cost.

In one possible design, the first wireless device is a wifi access point, the second wake-up preamble is an uplink wake-up preamble, and the third wake-up preamble is a downlink wake-up preamble; or, the first wireless device is a wireless fidelity workstation, the second wake-up preamble is a downlink wake-up preamble, and the third wake-up preamble is an uplink wake-up preamble.

In a second aspect, a method for transmitting a wakeup frame is provided, including: the second wireless device obtaining a first wake-up preamble; the second wireless device generates a wake-up frame, wherein the wake-up frame carries the first wake-up preamble; the second wireless device sends the wakeup frame.

In one possible design, the second wireless device obtaining a first wake-up preamble, comprising: the second wireless device determining a target receiving device for the wake-up frame; the second wireless device acquires a wakeup preamble pre-configured by an auxiliary wakeup interface of the target receiving device; the second wireless device takes a wake-up preamble pre-configured by the auxiliary wake-up interface of the target receiving device as the first wake-up preamble.

In one possible design, the second wireless device obtaining a first wake-up preamble, comprising: the second wireless device obtains a wake-up preamble, which is pre-configured by an auxiliary wake-up interface of the second wireless device and is used for being carried in a wake-up frame, as the first wake-up preamble.

In one possible design, the secondary wake-up interface of the second wireless device is further preconfigured with a wake-up preamble for receiving a wake-up frame.

In one possible design, the second wireless device is a wifi access point, the wake-up preamble pre-configured by the auxiliary wake-up interface of the second wireless device for being carried in the wake-up frame is a downlink wake-up preamble, and the wake-up preamble pre-configured by the auxiliary wake-up interface of the second wireless device for receiving the wake-up frame is an uplink wake-up preamble; or the second wireless device is a wireless fidelity workstation, the wake-up preamble pre-configured by the auxiliary wake-up interface of the second wireless device and used for being carried in the wake-up frame is an uplink wake-up preamble, and the wake-up preamble pre-configured by the auxiliary wake-up interface of the second wireless device and used for receiving the wake-up frame is a downlink wake-up preamble.

In one possible design, the second wireless device obtaining a first wake-up preamble, comprising: the second wireless device determining a target receiving device for the wake-up frame; the second wireless device determines a target wireless group to which the target receiving device belongs; and the second wireless equipment selects the wake-up preamble corresponding to the target wireless group from the wake-up preambles corresponding to the plurality of wireless groups respectively as the first wake-up preamble.

Any of the second aspect and the second aspect of the present application may be designed as a method, a specific embodiment, and an advantageous effect of a transmitting side corresponding to any of the possible designs of the first aspect and the first aspect, refer to any of the possible designs of the first aspect and the first aspect.

In a third aspect, an apparatus for receiving a wake-up frame is provided, including: a processor, configured to perform a correlation operation on a first wake-up preamble and a second wake-up preamble when a wake-up frame is detected, to obtain a correlation value between the first wake-up preamble and the second wake-up preamble, 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 preconfigured by an auxiliary wake-up interface of the device that receives the wake-up frame; 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.

In one possible design, the transceiver is further configured to: and when the correlation value of the first wake-up preamble and the second wake-up preamble is smaller than the preset value, stopping receiving the wake-up frame.

In one possible design, the secondary wake-up interface of the device that receives the wake-up frame is further configured with one or more third wake-up preambles, where the one or more third wake-up preambles are used to be carried in the wake-up frame sent by the first wireless device.

In one possible design, the device receiving the wake-up frame is a wifi access point, the second wake-up preamble is an uplink wake-up preamble, and the third wake-up preamble is a downlink wake-up preamble; or, the device receiving the wake-up frame is a wireless fidelity workstation, the second wake-up preamble is a downlink wake-up preamble, and the third wake-up preamble is an uplink wake-up preamble.

Any of the third aspect and the third aspect of the present application may be designed as a device corresponding to any of the possible designs of the first aspect and the first aspect, and specific embodiments and advantages thereof may be seen from any of the possible designs of the first aspect and the first aspect.

In a fourth aspect, an apparatus for transmitting a wakeup frame is provided, including: the processor is used for acquiring a first wake-up preamble and generating a wake-up frame, wherein the wake-up frame carries the first wake-up preamble; a transceiver for transmitting the wakeup frame.

In one possible design, when obtaining the first wake-up preamble, the processor is specifically configured to: determining a target receiving device of the wake-up frame; acquiring a wakeup preamble preconfigured by an auxiliary wakeup interface of the target receiving equipment; and taking a wake-up preamble pre-configured by an auxiliary wake-up interface of the target receiving device as the first wake-up preamble.

In one possible design, when obtaining the first wake-up preamble, the processor is specifically configured to: and acquiring a wake-up preamble which is pre-configured by an auxiliary wake-up interface of the second wireless device and is used for being carried in a wake-up frame as the first wake-up preamble.

In a possible design, the device sending the wake-up frame is a wifi access point, the wake-up preamble pre-configured by the auxiliary wake-up interface of the device sending the wake-up frame for being carried in the wake-up frame is a downlink wake-up preamble, and the wake-up preamble pre-configured by the auxiliary wake-up interface of the device sending the wake-up frame for receiving the wake-up frame is an uplink wake-up preamble; or the device sending the wake-up frame is a wireless fidelity workstation, the wake-up preamble pre-configured by the auxiliary wake-up interface of the device sending the wake-up frame and used for being carried in the wake-up frame is an uplink wake-up preamble, and the wake-up preamble pre-configured by the auxiliary wake-up interface of the device sending the wake-up frame and used for receiving the wake-up frame is a downlink wake-up preamble.

In one possible design, when obtaining the first wake-up preamble, the processor is specifically configured to: determining a target receiving device of the wake-up frame; determining a target wireless group to which the target receiving equipment belongs; and selecting the awakening and matching preamble corresponding to the target wireless group from the awakening preambles corresponding to the wireless groups respectively as a first awakening preamble.

Any of the fourth aspect and the fourth aspect of the present application may be designed as a device, and specific embodiments and advantages thereof correspond to any of the possible designs of the second aspect and the second aspect, which can be seen from the second aspect and the second aspect.

In a fifth aspect, a system for processing a wake-up frame is provided, where the system includes a device in any one of the possible designs of the third aspect and the third aspect, and a device in any one of the possible designs of the fourth aspect and the fourth aspect, that sends a wake-up frame.

In one possible design, the device that sends the wakeup frame is a wifi access point, and the device that receives the wakeup frame is a wifi station; or, the device sending the wake-up frame is a wireless fidelity workstation, and the device receiving the wake-up frame is a wireless fidelity access point.

A sixth aspect provides a computer-readable storage medium comprising instructions which, when executed on a computer, cause the computer to perform the method of the first aspect as well as any one of the possible designs of the first aspect.

In a seventh aspect, a computer-readable storage medium is provided, comprising instructions which, when executed on a computer, cause the computer to perform the method of the second aspect as well as any one of the possible designs of the second aspect.

As can be seen from the above, in the present application, when a first wireless device receives a wakeup frame, a first wakeup preamble carried in the wakeup frame and a second wakeup preamble preconfigured by an auxiliary wakeup interface of the first wireless device are correlated, and when a correlation value between the first wakeup preamble and the second wakeup preamble is smaller than a preset value, it is determined that the wakeup frame is irrelevant to the first wireless device, that is, the wakeup frame is not sent to the first wireless device, at this time, the first wireless device stops receiving the wakeup frame, and compared with the prior art, the first wireless device receives all received wakeup frames, which can save power consumption of the first wireless device.

Drawings

Fig. 1 is a schematic structural diagram of a wireless device provided in the present application;

fig. 2 is a schematic diagram of a BSS provided in the present application;

FIG. 3 is a schematic diagram of a wireless device provided herein;

fig. 4 is a schematic flow chart of receiving a wakeup frame according to the present application;

fig. 5 is a schematic diagram of a wake-up preamble provided herein;

fig. 6 is a schematic diagram of a BSS provided in the present application;

fig. 7 is a schematic diagram of a BSS provided in the present application;

fig. 8 is a schematic diagram of a BSS provided in the present application;

fig. 9 is a schematic structural diagram of an apparatus for receiving a wake-up frame provided in the present application;

fig. 10 is a schematic structural diagram of a system for processing a wake-up frame according to the present application.

Detailed Description

For ease of understanding, the illustrations of the concepts related to the present application are given for reference as follows:

basic Service Set (BSS): the term Wireless network is used to describe a group of mobile devices that communicate with each other in a Wireless fidelity (WLAN) in an 802.11 protocol.

Access Point (Access Point, AP): an access point supporting an 802.11 protocol is mainly used for providing a WIFI network, such as a WIFI router, in a certain coverage area.

Workstation (Station, STA): the workstation supporting the 802.11 protocol is mainly used for accessing a WIFI network in a coverage area of a WIFI AP, for example, terminals such as a mobile phone, a tablet computer, a sensor node and wearable equipment.

802.11 protocol: the International Institute of Electrical and Electronic Engineers (IEEE) has established standards for wireless local area networks.

The technical scheme of the application is described in the following with reference to the attached drawings:

fig. 2 shows a possible BSS provided by the present application, where the BSS200 includes an AP201 and a STA 202;

the AP201 is configured to provide a WIFI network in a certain coverage area; the STA202 is configured to access the WIFI network in the coverage area of the AP 201. For clarity, only one AP and three STAs are shown in fig. 2, and in the present application, BSS200 may include one or more APs 201 and one or more STAs 202. Also, for clarity, STA22 is represented in fig. 2 as a smartphone, and in this application, STA202 may be a smartphone, a portable computer, a sensor node, and a smart device such as wearable smart devices (e.g., smartwatches and sports bracelets) and implantable digital medical sensors.

Fig. 3 shows a schematic structural diagram of a wireless device, where the wireless device in fig. 3 may be the AP201 in fig. 2, and may also be the STA202 in fig. 2. As shown in fig. 3, the wireless device 300 includes, but is not limited to, a processor 301, a memory 302, a host communication interface 303, a Wake-up Radio (WUR) interface 304, and an antenna 305.

When the wireless device 300 is an AP, the main communication interface 303 is configured to provide WIFI coverage within a certain range, and when the wireless device 300 is an STA, the main communication interface 303 is configured to access a WIFI network within a coverage range of the WIFI AP.

An auxiliary wake-up interface 304 for receiving a wake-up frame (WUP) and waking up the host communication interface 303. In this application, the primary communication interface 303 is in a deep sleep state during normal conditions, in which state the transceiver of the primary communication interface 303 is turned off and power consumption is close to zero. When the wireless device 300 needs to communicate with the outside world, the primary communication interface 303 is woken up by the secondary wake-up interface 304.

In this application, the secondary wake-up interface 304 is in a listening state (also referred to as an active state) for listening for wake-up frames when the primary communication interface 303 is in a deep sleep state. While the primary communication interface 303 is in the wake-up state, the secondary wake-up interface 304 may be in a deep sleep state or a listening state. If the secondary wake-up interface 304 employs Duty-Cycling, i.e. the secondary wake-up interface 304 is constantly switching between an active state and a dormant state, the secondary wake-up interface 304 may be in a listening state (active state in Duty cycle) when the primary communication interface 303 is in a deep sleep state, or the secondary wake-up interface 304 may also be in a dormant state (dormant state in Duty cycle).

In the present application, the main communication interface 303 and the auxiliary wake-up interface 304 may share one antenna 305, and the main communication interface 303 and the auxiliary wake-up interface 304 may also correspond to different antennas, especially when the main communication interface 303 and the auxiliary wake-up interface 304 operate in different frequency bands.

In the present application, the wireless device 300 may be implemented by one system on chip (SoC) or by an integrated circuit or by a combination of two hardware modules.

In the present application, as shown in fig. 2, when an AP201 wants to communicate with an STA202, a party that initiates communication actively, for example, the AP201, needs to send a wakeup frame first, and a party that communicates passively, for example, the STA202, receives the wakeup frame when detecting the wakeup frame, then decodes the wakeup frame, determines whether the wakeup frame is related to itself and the correctness and authenticity of the wakeup frame, if the wakeup frame is sent to the STA202 itself and the wakeup frame is correct and real, wakes up a main communication interface of itself, otherwise, does not perform any operation.

In this application, a wake-up frame associated with a wireless device refers to a wake-up frame that may be sent to the wireless device, i.e., the wireless device may be the intended recipient of the wake-up frame, while a wake-up frame that is not associated with a wireless device refers to a wake-up frame that is sent to a wireless device other than the wireless device, i.e., the wireless device must not be the intended recipient of the wake-up frame.

It should be noted that the plurality referred to in the present application means two or more. The terms first, second, etc. described herein are used for distinguishing between similar elements and not necessarily for describing a sequential or chronological order.

Fig. 4 is a flowchart of receiving a wake-up frame, where the first wireless device in the flowchart may be the AP201 in fig. 2, and the second wireless device may be the STA202 in fig. 2, or alternatively, the first wireless device may be the STA202 in fig. 2, and the second wireless device may be the AP201 in fig. 2, as shown in fig. 4, including:

step S41: the second wireless device transmits a wake-up frame.

In the present application, as shown in fig. 5, the Wake-up frame mainly includes two parts, namely a Wake-up Preamble (Wake-up Preamble) and a Medium Access Control (MAC) part. The wakeup preamble is mainly used to help a wireless device receiving the wakeup frame, detect the wakeup frame, synchronize symbols, set AGC, and the like, and when OOK modulation is adopted, the wakeup preamble Sequence may be a Sequence composed of "0" and "1", for example, "1, 0, 1, 0, 1, 0, 1, 0", or other Pseudo-noise (PN) Sequence; when BPSK modulation is used, the wake-up preamble sequence may be a sequence consisting of "-1" and "1", e.g., "-1, 1, -1, 1, -1, 1, -1, 1", or other sequences, e.g., Walsh sequences, Golay sequences, etc.

The MAC portion includes at least a Receiver Address (RA) of the wake-up frame, the Receiver Address (RA) identifying a target receiver of the wake-up frame. The Recipient Address (RA) may comprise network identification (NetworkID) information and/or wake radio identification (WUR ID) information of a target device; or the Recipient Address (RA) may be a combination of a Network identification (Network ID) and a wake radio identification (WUR ID) of the target device; or the Receiver Address (RA) may be a wake radio identification (WUR ID) of the target device. The wake radio identity (WURID) of the target device may be selected and assigned by the AP or AC, or the wake radio identity may be set at the factory of the device. The Network identification (Network ID) may be used to identify information of a Basic Service Set (BSS) and/or an associated AP to which the wake-up frame belongs, for example, a BSS color or a BSSID. The Network identification (Network ID) may be part of a wake radio identification (WUR ID) of the target device.

Optionally, still referring to fig. 5, the wake-up frame may further include one or more of the following information: legacy 802.11 Preamble (Legacy 802.11 Preamble), Frame Type (Frame Type), sender Address (TA), Control information (Control Info), Counter information (Counter), Frame authentication information (e.g., MIC), and Frame check information (e.g., FCS). The Legacy 802.11 Preamble (Legacy 802.11 Preamble) may be used for backward compatibility, so that the Legacy Wi-Fi device may determine that the current frame is a Wi-Fi frame based on the Legacy Preamble, 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, e.g., to indicate a wake-up Frame (WUP), or to indicate a unicast wake-up Frame, or to indicate a broadcast wake-up Frame. The sender address (TA) may be sender related information, e.g. BSS color, or BSSID, or MAC address, or part of MAC address. The Control information (Control Info) may be used to indicate information such as Control commands and link parameters. The Counter information (Counter) may be used to help the receiving end to implement correctness checking and/or authenticity verification of the received wake-up frame. The authentication information (MIC) may be used to help the receiving end authenticate the authenticity of the received wake-up frame. The Frame Check Sequence (FCS) may be used to help the receiving end check the correctness of the received wake-up frame.

Note that, in the present application, the Wake-up Preamble (Wake-up Preamble) may also be referred to as: wake-up Preamble Sequence, Preamble (Preamble), pilot Sequence, or Physical pilot (Physical Preamble).

In this application, for convenience of distinction, the wake-up preamble carried in the wake-up frame may be referred to as a first wake-up preamble, which is used only for distinction from other wake-up preambles, and is not used for indicating or implying relative importance, nor for indicating or implying order.

Step S42: when the first wireless device detects the wakeup frame, performing a correlation operation on a first wakeup preamble and a second wakeup preamble to obtain a correlation value of the first wakeup preamble and the second wakeup preamble, where the second wakeup preamble is a wakeup preamble preconfigured by an auxiliary wakeup interface of the first wireless device;

in this application, the correlation operation may be, but is not limited to, an inner product operation, and the correlation value of the first wake-up preamble and the second wake-up preamble may be, but is not limited to, an inner product operation result of the first wake-up preamble and the second wake-up preamble. The correlation operation may also be other operation modes as required.

For example, if the first wake-up preamble is "0, 1, 0, 1", and the second wake-up preamble is "1, 0, 1, 0", an inner product operation procedure of the first wake-up preamble and the second wake-up preamble may be "0 × 1+1 × 0+0 × 1+1 × 0 ═ 0", and an 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 preamble are orthogonal).

Step S43: and the first wireless equipment receives the awakening frame when the correlation value of the first awakening precursor and the second awakening precursor is greater than or equal to a preset value.

Step S44: and the first wireless equipment stops receiving the awakening frame when the correlation value of the first awakening precursor and the second awakening precursor is smaller than the preset value.

In this application, when a first wireless device receives a wakeup frame, a first wakeup preamble carried in the wakeup frame and a second wakeup preamble preconfigured by an auxiliary wakeup interface of the first wireless device are correlated, and when a correlation value between the first wakeup preamble and the second wakeup preamble is smaller than a preset value, it is determined that the wakeup frame is irrelevant to the first wireless device, that is, the wakeup frame is not sent to the first wireless device, at this time, the first wireless device stops receiving the wakeup frame, and compared with the prior art in which the first wireless device receives all received wakeup frames, power consumption of the first wireless device can be saved.

In an embodiment of the present application, 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 an STA; and the wake-up preambles of the auxiliary wake-up interfaces of any two wireless devices are different, wherein the difference means that the correlation value between the wake-up preambles of the auxiliary wake-up interfaces of any two wireless devices is smaller than a preset value. For example, the wake-up preambles of the secondary wake-up interfaces of any two wireless devices within a BSS may be orthogonal, i.e., the correlation value between the two is zero.

The specific process is as follows: the second wireless device determining a target receiving device for the wake-up frame; the second wireless device acquires a wakeup preamble pre-configured by an auxiliary wakeup interface of the target receiving device; the second wireless device takes a wake-up preamble pre-configured by an auxiliary wake-up interface of the target receiving device as the first wake-up preamble; the second wireless device generates a wake-up frame, wherein the wake-up frame carries the first wake-up preamble; the second wireless device sends the wakeup frame. When the first wireless equipment detects a wakeup frame, the first wireless equipment carries out related operation on a first wakeup preamble carried in the wakeup frame and a second wakeup preamble preconfigured by an auxiliary wakeup interface of the first wireless equipment; and if the correlation value of the two is greater than or equal to the preset value, receiving the awakening frame, otherwise, stopping receiving the awakening frame.

In the present application, the process of the present application will be described in detail by taking the first wireless device as an STA and the second wireless device as an AP as an example; of course, in this application, the first wireless device may also be an AP, and the second wireless device may also be an STA, and the process is similar to the above, and is not described herein again.

Illustratively, as shown in fig. 6, the entire BSS includes one AP and a plurality of STAs.

In the present application, when the AP is to communicate with an STA, for convenience of description, the STA is referred to as a target STA, and first acquires a wake-up preamble of an auxiliary wake-up interface of the target STA, which is hereinafter referred to as a first wake-up preamble; and then, carrying the first wake-up preamble into a wake-up frame, and sending the wake-up frame to the STA side.

In this application, still referring to fig. 6, a wake-up frame is detected for both target and non-target STAs. For the target STA, since the first wakeup preamble carried in the wakeup frame is the wakeup preamble preconfigured for the auxiliary wakeup interface of the target STA, the inner product of the first wakeup preamble and the second wakeup preamble is definitely greater than the preset value, and therefore, the target STA can receive the wakeup frame;

for the non-target STA, because the wake-up preambles of the auxiliary wake-up interfaces of different pre-configured wireless devices are different, then, because the first wake-up preamble of the auxiliary wake-up interface of the target STA is carried in the wake-up frame, for the non-target STA, when performing an inner product operation on the first wake-up preamble carried in the wake-up frame and the wake-up preamble of the auxiliary wake-up interface of the non-target STA, the correlation values of the first wake-up preamble and the wake-up preamble of the auxiliary wake-up interface of the non-target STA are necessarily smaller than a preset value, and at this time, the non.

It can be seen that, in the present application, in the BSS, only the target STA may receive the wakeup frame, and for the non-target STA, the STA may not receive the wakeup frame.

In this application, the wireless devices in the BSS may be pre-divided into different groups, where 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, where the difference indicates that the correlation value between the wake-up preambles of any two groups is smaller than the preset value, for example, the wake-up preambles of any two groups are orthogonal to each other.

The specific process comprises the following steps: the second wireless device determines a target receiving device of the wake-up frame; the second wireless equipment determines a target wireless group to which the target receiving equipment belongs; the second wireless equipment selects the awakening and matching preamble of the target wireless group from the awakening preambles of the plurality of wireless groups as a first awakening preamble; the second wireless equipment generates a wake-up frame, wherein the wake-up frame carries the first wake-up preamble; the second wireless device transmits the wakeup frame. When the first wireless device detects the wake-up frame, the first wireless device carries out related operation on a first wake-up preamble carried in the wake-up frame and a second wake-up preamble preconfigured by the first wireless device auxiliary wake-up interface, and if the related value of the first wake-up preamble and the second wake-up preamble is greater than or equal to a preset value, the wake-up frame is received, otherwise, the wake-up frame is stopped being received, and the second wake-up preamble preconfigured by the first wireless device auxiliary wake-up interface is the wake-up preamble of the wireless group to which the first wireless device belongs.

For example, as shown in fig. 7, the wireless devices in the entire BSS are divided into three groups, namely a first group including one or more APs, a second group including one or more STAs, and a third group including one or more STAs.

In this application, taking the AP in the first group to communicate with the STA in the second group as an example, the process of this application is described in detail:

firstly, determining a target STA by an AP of a first group, and then determining a wireless group to which the target STA belongs, namely a second group; then the AP searches the awakening precursor of the second group in the awakening precursors of the wireless groups; and finally, carrying a second group of awakening preambles in the awakening frame and sending the awakening frame.

For all STAs in the second group, when detecting the wakeup frame, the STA may perform a correlation operation on the wakeup preamble of the second group carried in the wakeup frame and the wakeup preamble of the STA (that is, the wakeup preamble of the second group), and may find that a correlation value between the wakeup preamble and the wakeup preamble is greater than a preset value, and then receive the wakeup frame. For all STAs in the third group, when detecting the wakeup frame, the STA may perform a correlation operation on the wakeup preamble of the second group and the wakeup preamble of the STA (that is, the wakeup preamble of the third group) carried in the wakeup frame, and when finding that a correlation value between the wakeup preamble and the wakeup preamble is smaller than a preset value, stop receiving the wakeup frame.

Therefore, by adopting the method, the STA in other groups except the group to which the target STA belongs can stop receiving the wake-up frame, so that the power consumption of the STA is saved.

In this application, each wireless device in the BSS may be configured with two wake-up preambles in advance, which are the wake-up preamble carried in the wake-up frame and the wake-up preamble for receiving the wake-up frame, respectively. The specific process is as follows: the method comprises the steps that a second wireless device acquires a wake-up preamble which is pre-configured by an auxiliary wake-up interface of the second wireless device and is used for being carried in a wake-up frame; the second wireless device takes a wake-up preamble which is pre-configured by an auxiliary wake-up interface of the second wireless device and is used for being carried in a wake-up frame as the first wake-up preamble; the second wireless equipment generates a wake-up frame, wherein the wake-up frame carries the first wake-up preamble; the second wireless device transmits the wakeup frame. When the first wireless device detects the wake-up frame, performing related operation on a first wake-up preamble carried in the wake-up frame and a second wake-up preamble which is preconfigured by an auxiliary wake-up interface of the first wireless device and used for receiving the wake-up frame; and if the correlation value of the two is larger than or equal to the preset value, receiving the awakening frame, otherwise, stopping receiving the awakening frame.

For the AP, the wake-up preamble carried in the wake-up frame is a downlink wake-up preamble, and the wake-up preamble used for receiving the wake-up frame is an uplink wake-up preamble. For the STA, the wakeup preamble carried in the wakeup frame is an uplink wakeup preamble, and the wakeup preamble used for receiving the wakeup frame is a downlink wakeup preamble.

For example, as shown in fig. 8, the entire BSS includes one AP and two STAs, which are the first STA and the second STA, respectively. Wherein, an uplink wakeup preamble and a downlink wakeup preamble are configured in advance for the auxiliary wakeup interfaces of the AP and the STA.

In the application, when a first STA communicates with an AP, a second STA can acquire an uplink preamble and generate a wakeup frame, wherein the wakeup frame carries the uplink preamble; the wake-up frame is then sent. And when the AP detects the awakening frame, the AP performs correlation operation on the uplink preamble carried in the awakening frame and the uplink awakening preamble pre-configured by the auxiliary awakening interface of the AP, so that the AP receives the awakening frame after the correlation value of the uplink preamble and the uplink wakeup preamble is greater than the preset value. And for the second STA, when the wake-up frame is detected, 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 of the second STA are subjected to correlation operation, and it can be seen that the correlation value of the uplink wake-up preamble and the downlink wake-up preamble is smaller than a preset value, the second STA stops receiving the wake-up frame.

In this application, after the first STA and the second STA receive the wakeup frame, the MAC portion of the wakeup frame is demodulated (see the MAC portion in fig. 5), whether the receiver address of the MAC portion matches the address of the first STA and the second STA is checked, if the receiver address of the MAC portion matches the address of the first STA and the address of the second STA, the main communication interface of the first STA is woken up, and otherwise, no operation is performed. In this application, since the first AP communicates with the first STA, the MAC portion in the wakeup frame carries a receiving address of the auxiliary wakeup interface of the first STA (for example, identification information of the auxiliary wakeup interface, or identification information of the STA), and thus, after receiving the wakeup frame, the first STA wakes up the main communication interface of the first STA; and for the second STA, the operation of waking up the main communication interface is not executed any more because the receiver address carried by the MAC part of the wake-up frame does not match with the self address.

It should be noted that, in the present application, a modulation and coding scheme 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 wakeup frame may employ more complex channel coding, such as repetition coding and binary convolutional coding. Therefore, the MAC portion of the wake-up frame is processed with a power consumption greater than that of the wake-up preamble portion of the wake-up frame.

In the present application, most of the extraneous wake-up frames can be filtered by processing the wake-up preamble of the wake-up frame. Compared with the prior art, each wireless device can know whether the wireless device is related to the awakening frame only after the MAC part of the awakening frame is decoded and the address of the receiver is acquired after the awakening frame is received. Especially for the internet of things and wearable WIFI networks based on WIFI, a WIFI network is provided in the wearable WIFI network by using a mobile phone or other intelligent terminals as virtual access points (SoftAP, or mobile AP). The wearable device is used as an STA and is accessed into the virtual access point. Since the STAs in wearable devices are powered by small capacity batteries, there is a high demand for low power consumption and long battery life. Therefore, the method is particularly obvious in effect when applied to the WIFI internet of things and the wearable WIFI network.

It should be noted that, in the present application, for the case of multiple BSSs, the uplink wake-up preambles used by adjacent BSSs (OBSSs) may be the same or different, and the downlink wake-up preambles may be the same or different. For example, the uplink wake-up preamble in bss one is the same as the uplink wake-up preamble in bss two, and the downlink wake-up preamble in bss one is different from the downlink wake-up preamble in bss two; the difference means that the two downlink wake-up preambles are orthogonal, or that the cross-correlation value of the two downlink wake-up preambles is smaller than a preset threshold value. For another example, the uplink wake-up preamble in bss one is different from the uplink wake-up preamble in bss two, and the downlink wake-up preamble in bss one is different from the downlink wake-up preamble in bss two; the difference means that the two uplink (or downlink) wake-up preambles are orthogonal, or that the cross-correlation value of the two uplink (or downlink) wake-up preambles is smaller than the preset threshold value V1.

In this application, as shown in fig. 9, there is also provided an apparatus 900 for receiving a wake-up frame, which may include:

a processor 901, configured to perform a correlation operation on a first wake-up preamble and a second wake-up preamble when a wake-up frame is detected, to obtain a correlation value of the first wake-up preamble and the second wake-up preamble, 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 preconfigured by an auxiliary wake-up interface of the device that receives the wake-up frame;

a transceiver 902, 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.

Optionally, the transceiver 902 is further configured to stop receiving the wake-up frame when a correlation value between the first wake-up preamble and the second wake-up preamble is smaller than the preset value.

Specifically, the correlation operation is an inner product operation, and a correlation value of the first wake-up preamble and the second wake-up preamble is an inner product operation result of the first wake-up preamble and the second wake-up preamble.

Optionally, 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, where the one or more third wake-up preambles are used to be carried in the wake-up frame sent by the device that receives the wake-up frame.

Optionally, the device receiving the wake-up frame is a wireless fidelity access point, the second wake-up preamble is an uplink wake-up preamble, and the third wake-up preamble is a downlink wake-up preamble; or, the device receiving the wake-up frame is a wireless fidelity workstation, the second wake-up preamble is a downlink wake-up preamble, and the third wake-up preamble is an uplink wake-up preamble.

For a specific process of the device 900 receiving the wake-up frame to the wake-up frame, reference may be made to the above description of the first device receiving the wake-up frame, which is not described herein again.

In this application, as shown in fig. 9, there is also provided an apparatus 900 for transmitting a wakeup frame, including:

a processor 901, configured to obtain a first wake-up preamble, and generate a wake-up frame, where the wake-up frame carries the first wake-up preamble;

a transceiver 902 for transmitting the wake-up frame.

Optionally, when acquiring the first wake-up preamble, the processor is specifically configured to: determining a target receiving device of the wake-up frame; acquiring a wakeup preamble preconfigured by an auxiliary wakeup interface of the target receiving equipment; and taking a wake-up preamble pre-configured by an auxiliary wake-up interface of the target receiving device as the first wake-up preamble.

Optionally, when acquiring the first wake-up preamble, the processor is specifically configured to: and acquiring a wake-up preamble which is pre-configured by an auxiliary wake-up interface of the device for sending the wake-up frame and is used for being carried in the wake-up frame, as the first wake-up preamble. The auxiliary wake-up interface of the device sending the wake-up frame is also preconfigured with a wake-up preamble for receiving the wake-up frame.

Optionally, the device sending 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 sending the wake-up frame and used for being carried in the wake-up frame is a downlink wake-up preamble, and the wake-up preamble pre-configured by the auxiliary wake-up interface of the device sending the wake-up frame and used for receiving the wake-up frame is an uplink wake-up preamble;

optionally, the device sending the wake-up frame is a wireless fidelity workstation, the wake-up preamble pre-configured by the auxiliary wake-up interface of the device sending the wake-up frame and used for being carried in the wake-up frame is an uplink wake-up preamble, and the wake-up preamble pre-configured by the auxiliary wake-up interface of the device sending the wake-up frame and used for receiving the wake-up frame is a downlink wake-up preamble.

Optionally, when acquiring the first wake-up preamble, the processor is specifically configured to: determining a target receiving device of the wake-up frame; determining a target wireless group to which the target receiving equipment belongs; a wake-up preamble corresponding to a target wireless section is selected from wake-up preambles corresponding to a plurality of wireless sections as a first wake-up preamble.

For a specific process of the device 900 sending the wake-up frame to the wake-up frame, reference may be made to the above description of sending the wake-up frame by the second device, which is not described herein again.

In this application, as shown in fig. 10, a system 110 for processing a wake-up frame is further provided, which includes a device 111 for sending a wake-up frame and a device 112 for receiving a wake-up frame, where the device 111 for sending a wake-up frame may specifically correspond to the second wireless device to perform a method for the second wireless device to send a wake-up frame, and the device 112 for receiving a wake-up frame may specifically correspond to the first wireless device to perform a method for the first wireless device to receive a wake-up frame.

Note that the device 111 that sends the wakeup frame may be an AP, and the device 112 that receives the wakeup frame may be a STA; alternatively, the device sending the wakeup frame may be an STA, and the device receiving the wakeup frame may be an AP.

There is also provided a computer readable storage medium including computer instructions, which when run on a computer, enable the computer to perform the scheme of receiving a wake-up frame in any of the above embodiments.

There is also provided a computer readable storage medium comprising computer instructions, which when run on a computer, enable the computer to perform the scheme of sending a wakeup frame in any of the above embodiments.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, 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. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may 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, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A method of receiving a wake-up frame, comprising:

when a first wireless device detects a wakeup frame, performing a correlation operation on a first wakeup preamble and a second wakeup preamble to obtain a correlation value of the first wakeup preamble and the second wakeup preamble, where the first wakeup preamble is a wakeup preamble carried in the wakeup frame, and the second wakeup preamble is a wakeup preamble preconfigured by an auxiliary wakeup interface of the first wireless device;

the first wireless device receives the wakeup frame when a correlation value of the first wakeup preamble and the second wakeup preamble is greater than or equal to a preset value.

2. The method of claim 1, further comprising:

and the first wireless equipment stops receiving the awakening frame when the correlation value of the first awakening precursor and the second awakening precursor is smaller than the preset value.

3. The method of claim 1 or 2, wherein the correlation operation is an inner product operation, and wherein a correlation value of the first wake-up preamble and the second wake-up preamble is an inner product operation result of the first wake-up preamble and the second wake-up preamble.

4. The method of claim 1 or 2, wherein the secondary wake-up interface of the first wireless device is further configured with one or more third wake-up preambles, and wherein the one or more third wake-up preambles are used to be carried in a wake-up frame transmitted by the first wireless device.

5. The method of claim 4, wherein the first wireless device is a wi-Fi access point, the second wake-up preamble is an uplink wake-up preamble, and the third wake-up preamble is a downlink wake-up preamble;

or, the first wireless device is a wireless fidelity workstation, the second wake-up preamble is a downlink wake-up preamble, and the third wake-up preamble is an uplink wake-up preamble.

6. A method of transmitting a wakeup frame, comprising:

the second wireless device obtaining a first wake-up preamble;

the second wireless device generates a wake-up frame, the wake-up frame carries the first wake-up preamble, the first wake-up preamble is used for performing a correlation operation with a second wake-up preamble, the second wake-up preamble is a wake-up preamble preconfigured by an auxiliary wake-up interface of the first wireless device, and when a correlation value of the correlation operation of the first wake-up preamble and the second wake-up preamble is greater than or equal to a preset value, the first wireless device receives the wake-up frame;

the second wireless device sends the wakeup frame.

7. The method of claim 6, wherein obtaining, by the second wireless device, the first wake-up preamble comprises:

the second wireless device determining a target receiving device for the wake-up frame;

the second wireless device acquires a wakeup preamble pre-configured by an auxiliary wakeup interface of the target receiving device;

the second wireless device takes a wake-up preamble pre-configured by the auxiliary wake-up interface of the target receiving device as the first wake-up preamble.

8. The method of claim 6, wherein obtaining, by the second wireless device, the first wake-up preamble comprises:

the second wireless device obtains a wake-up preamble, which is pre-configured by an auxiliary wake-up interface of the second wireless device and is used for being carried in a wake-up frame, as the first wake-up preamble.

9. The method of claim 8, wherein the secondary wake-up interface of the second wireless device is further preconfigured with a wake-up preamble for receiving a wake-up frame.

10. The method of claim 9, wherein the second wireless device is a wifi access point, the wake-up preamble pre-configured by the secondary wake-up interface of the second wireless device for being carried in the wake-up frame is a downlink wake-up preamble, and the wake-up preamble pre-configured by the secondary wake-up interface of the second wireless device for receiving the wake-up frame is an uplink wake-up preamble; or

The second wireless device is a wireless fidelity workstation, the wake-up preamble pre-configured by the auxiliary wake-up interface of the second wireless device and used for being carried in the wake-up frame is an uplink wake-up preamble, and the wake-up preamble pre-configured by the auxiliary wake-up interface of the second wireless device and used for receiving the wake-up frame is a downlink wake-up preamble.

11. The method of claim 6, wherein obtaining, by the second wireless device, the first wake-up preamble comprises:

the second wireless device determines a target wireless group to which the target receiving device belongs;

and the second wireless equipment selects the wake-up preamble corresponding to the target wireless group from the wake-up preambles corresponding to the plurality of wireless groups respectively as the first wake-up preamble.

12. An apparatus for receiving a wake-up frame, comprising:

a processor, configured to perform a correlation operation on a first wake-up preamble and a second wake-up preamble when a wake-up frame is detected, to obtain a correlation value between the first wake-up preamble and the second wake-up preamble, 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 preconfigured by an auxiliary wake-up interface of the device that receives the wake-up frame;

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.

13. The apparatus of claim 12, wherein the transceiver is further configured to: and when the correlation value of the first wake-up preamble and the second wake-up preamble is smaller than the preset value, stopping receiving the wake-up frame.

14. The apparatus of claim 12 or 13, wherein the correlation operation is an inner product operation, and wherein a correlation value of the first wake-up preamble and the second wake-up preamble is an inner product operation result of the first wake-up preamble and the second wake-up preamble.

15. The device according to claim 12 or 13, wherein the secondary 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 used to be carried in the wake-up frame sent by the first wireless device.

16. The device according to claim 15, wherein the device receiving the wake-up frame is a wifi access point, the second wake-up preamble is an uplink wake-up preamble, and the third wake-up preamble is a downlink wake-up preamble;

or, the device receiving the wake-up frame is a wireless fidelity workstation, the second wake-up preamble is a downlink wake-up preamble, and the third wake-up preamble is an uplink wake-up preamble.

17. An apparatus for transmitting a wakeup frame, comprising:

a processor, configured to obtain a first wake-up preamble, and generate a wake-up frame, where the wake-up frame carries the first wake-up preamble, where the first wake-up preamble is used to perform a correlation operation with a second wake-up preamble, and the second wake-up preamble is a wake-up preamble preconfigured for an auxiliary wake-up interface of a first wireless device, and when a correlation value of the correlation operation between the first wake-up preamble and the second wake-up preamble is greater than or equal to a preset value, the first wireless device receives the wake-up frame;

a transceiver for transmitting the wakeup frame.

18. The device according to claim 17, wherein the processor, when acquiring the first wake-up preamble, is specifically configured to:

determining a target receiving device of the wake-up frame;

acquiring a wakeup preamble preconfigured by an auxiliary wakeup interface of the target receiving equipment;

and taking a wake-up preamble pre-configured by an auxiliary wake-up interface of the target receiving device as the first wake-up preamble.

19. The device according to claim 17, wherein the processor, when acquiring the first wake-up preamble, is specifically configured to:

and acquiring a wake-up preamble which is pre-configured by an auxiliary wake-up interface of the second wireless device and is used for being carried in a wake-up frame as the first wake-up preamble.

20. The device of claim 19, wherein the secondary wake-up interface of the second wireless device is further preconfigured with a wake-up preamble for receiving a wake-up frame.

21. The device according to claim 20, wherein the device sending the wake-up frame is a wifi access point, the wake-up preamble pre-configured by the auxiliary wake-up interface of the device sending the wake-up frame for being carried in the wake-up frame is a downlink wake-up preamble, and the wake-up preamble pre-configured by the auxiliary wake-up interface of the device sending the wake-up frame for receiving the wake-up frame is an uplink wake-up preamble; or

The device for sending the wake-up frame is a wireless fidelity workstation, the wake-up preamble which is pre-configured by the auxiliary wake-up interface of the device for sending the wake-up frame and is used for being carried in the wake-up frame is an uplink wake-up preamble, and the wake-up preamble which is pre-configured by the auxiliary wake-up interface of the device for sending the wake-up frame and is used for receiving the wake-up frame is a downlink wake-up preamble.

22. The device according to claim 17, wherein the processor, when acquiring the first wake-up preamble, is specifically configured to:

determining a target receiving device of the wake-up frame;

determining a target wireless group to which the target receiving equipment belongs;

and selecting the awakening and matching preamble corresponding to the target wireless group from the awakening preambles corresponding to the wireless groups respectively as a first awakening preamble.

23. A system for handling wake-up frames, comprising a device for receiving wake-up frames according to any of claims 12 to 16 and a device for transmitting wake-up frames according to any of claims 17 to 22.

24. The system according to claim 23, wherein the device sending the wakeup frame is a wifi access point and the device receiving the wakeup frame is a wifi station;

or, the device sending the wake-up frame is a wireless fidelity workstation, and the device receiving the wake-up frame is a wireless fidelity access point.

25. A computer-readable storage medium comprising instructions which, when executed on a computer, cause the computer to perform the method of any one of claims 1 to 5.

26. A computer-readable storage medium comprising instructions which, when executed on a computer, cause the computer to perform the method of any one of claims 6 to 11.