CN109891946B

CN109891946B - Communication interface awakening method and device, and auxiliary awakening interface identification configuration method and device

Info

Publication number: CN109891946B
Application number: CN201780066417.XA
Authority: CN
Inventors: 程勇; 方平
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2016-11-10
Filing date: 2017-04-19
Publication date: 2021-06-22
Anticipated expiration: 2037-04-19
Also published as: CN109891946A; WO2018086311A1

Abstract

The method is applied to first equipment, wherein the first equipment is provided with a main communication interface and an auxiliary awakening interface corresponding to the main communication interface, the auxiliary awakening interface of the first equipment receives an awakening frame sent by second equipment, the distance between an identifier of the auxiliary awakening interface carried by the awakening frame and an identifier preset for the auxiliary awakening interface of the first equipment is calculated, and whether the main communication interface corresponding to the auxiliary awakening interface of the first equipment is awakened through the auxiliary awakening interface of the first equipment is determined according to whether the awakening frame meets a preset condition. Therefore, the distance between the two radio identifiers is compared, so that whether the awakening object corresponding to the received awakening frame is the awakening object per se can be judged, and the consumed power is low. The application also provides a wake-up method of the communication interface applied to the second device, an identification configuration method of the auxiliary wake-up interface and related wireless devices.

Description

Communication interface awakening method and device, and auxiliary awakening interface identification configuration method and device

The present application claims priority of chinese patent application entitled "a method of waking up a wireless device" filed by the chinese patent office on 10/11/2016 under the application number 201610990172.7, the entire contents of which are incorporated herein by reference; the present application also claims priority of chinese patent application entitled "wake-up method for communication interface, configuration method for auxiliary wake-up interface and apparatus" filed by chinese patent office on 6/4/2017 with application number 201710221944.5, which is incorporated herein by reference in its entirety.

Technical Field

The present invention relates to the field of wireless communications, and in particular, to a method and an apparatus for waking up a communication interface, and a method and an apparatus for configuring an identifier of an auxiliary wake-up interface.

Background

The IEEE 802.11 standard organization plans to make an Internet of things (IoT) standard based on Wi-Fi, and aims to popularize the Wi-Fi technology in the field of the Internet of things, including wearable electronic equipment and digital medical equipment. As a main power consumption module of the IoT device and the wearable electronic device, the existing Wi-Fi module has too large power consumption to be directly applied to the wearable electronic device. This is because IoT devices and wearable electronic devices, such as sports bracelets, smart watches, and digital medical devices, are generally small in size, and can be carried with limited size and capacity of a battery, while wearable electronic devices have a high endurance requirement for the battery. In order to apply the Wi-Fi technology to the field of internet of things and wearable electronic devices, it is necessary to improve and reduce power consumption of the Wi-Fi communication technology.

In Wi-Fi communication technology, a device (STA) may waste a large amount of power by idle listening (idle listening) to a channel. To reduce the energy waste caused by a device idling to listen to a channel, Wi-Fi technology introduces a sleep mechanism, i.e., the device's Wi-Fi module (Wi-Fi interface) goes to sleep and turns off the transceiver without data transmission. The conventional Wi-Fi sleep mechanism can reduce the power consumption of the Wi-Fi module. However, if a Wi-Fi module of a STA is in a sleep state, an Access Point (AP) cannot transmit data to the STA, and the AP needs to wait until the Wi-Fi module of the STA wakes up. This increases the communication delay and does not allow On-Demand (On-Demand) real-time data transmission. In order to reduce the communication delay caused by the conventional Wi-Fi sleep mechanism, the STA usually follows a certain sleep mode, and periodically wakes up to check whether the AP has data to transmit to the STA. Therefore, the sleep time proportion of the STA is reduced, and the energy consumption of the STA is increased.

In order to solve the above problems, the IEEE 802.11 standard organization has recently newly established a group, researches the ultra-low power consumption Wake-up Radio/Receiver (WUR) technology and formulates a WUR-based standard, and it is expected that the average power consumption of a Wi-Fi module On a device can be reduced by waking up the Radio/Receiver, and meanwhile, On-Demand (On-Demand) real-time data transmission can be realized.

A secondary wake-up radio/receiver (WUR) is an ultra-low power wireless interface added to a wireless device, coexisting with the wireless device's main communication module (e.g., Wi-Fi module). When no message needs to be received or transmitted, a master communication module (e.g., a Wi-Fi module) of the device enters deep sleep and turns on the WUR module for ultra-low power listening.

As shown in fig. 1, when a second wireless device (a waking device, e.g., an AP) has a message to transmit to a first wireless device (a awakened device, e.g., a STA), the second wireless device first sends a Wake-up Packet (WUP) to the WUR interface of the first wireless device. After receiving the wake-up frame, the auxiliary WUR module of the first wireless device checks the receiver address of the wake-up frame and confirms the correctness and the authenticity of the wake-up frame. If the target recipient address carried by the wake-up frame matches the address of the WUR of the first wireless device and the wake-up frame is correct and authentic, the WUR of the first wireless device sends a wake-up signal to the Wi-Fi module of the first wireless device to wake up the first wireless device host communication module (e.g., 802.11 module). After sending the wake-up signal, the WUR module of the first wireless device may enter a deep sleep state.

The average power consumption of the WUR module is very low due to the use of particularly simple circuit design and signal processing methods, e.g. when Duty-Cycling is used, the average power consumption of the WUR is about 100 μ W, roughly only 0.1% of the average power consumption of Wi-Fi. Compared with the method that a Wi-Fi module is directly started to monitor a channel, the WUR is adopted to remarkably reduce the average power consumption of the wireless equipment.

Disclosure of Invention

The application provides a communication interface awakening method which is used for reducing power consumption of an auxiliary awakening interface when awakening a main communication interface.

In order to achieve the above object, the present application provides the following technical solutions:

in one aspect, the present application provides a wake-up method for a communication interface, which is applied to a first device, where the first device has a main communication interface and an auxiliary wake-up interface corresponding to the main communication interface, and the method includes: the auxiliary wake-up interface of the first device receives a wake-up frame sent by a second device, the wake-up frame is used for waking up a main communication interface of a target device, the wake-up frame carries an identifier of a target auxiliary wake-up interface, and the target auxiliary wake-up interface is an auxiliary wake-up interface corresponding to the main communication interface of the target device to be woken up by the wake-up frame; the first equipment calculates the distance between the identifier of the auxiliary awakening interface carried by the awakening frame and the identifier preset for the auxiliary awakening interface of the first equipment; the first equipment determines whether to awaken a main communication interface corresponding to the auxiliary awakening interface of the first equipment through the auxiliary awakening interface of the first equipment or not according to whether the awakening frame meets a preset condition or not; wherein, whether the wakeup frame meets the preset condition comprises: whether a relationship between the distance calculated by the first device and a distance preset for the auxiliary wake-up interface of the first device satisfies a preset relationship.

In one possible design, the calculating, by the first device, a distance between an identifier of an auxiliary wake-up interface carried by the wake-up frame and an identifier preset for the auxiliary wake-up interface of the first device includes: and the first equipment calculates the Hamming distance between the identifier of the auxiliary awakening interface carried by the awakening frame and the identifier preset for the auxiliary awakening interface of the first equipment.

In a possible design, whether a relationship between the distance calculated by the first device and the distance preset for the auxiliary wake-up interface of the first device satisfies a preset relationship includes: whether a ratio between a distance calculated by the first device and a distance preset for the auxiliary wake-up interface of the first device satisfies a preset ratio relationship or not.

In a possible design, whether a relationship between the distance calculated by the first device and the distance preset for the auxiliary wake-up interface of the first device satisfies a preset relationship includes: whether the distance calculated by the first device is less than or equal to a distance preset for the auxiliary wake-up interface of the first device.

In one possible design, the determining, by the first device, whether to wake up, through the auxiliary wake-up interface of the first device, a main communication interface corresponding to the auxiliary wake-up interface of the first device according to whether the wake-up frame satisfies a preset condition includes: the first device determines to wake up a main communication interface corresponding to the auxiliary wake-up interface of the first device through the auxiliary wake-up interface of the first device when the wake-up frame meets a preset condition, where the wake-up frame meets the preset condition and includes: the calculated distance is less than or equal to a distance preset for an auxiliary wake-up interface of the first device.

In one possible design, the determining, by the first device, whether to wake up, through the auxiliary wake-up interface of the first device, a main communication interface corresponding to the auxiliary wake-up interface of the first device according to whether the wake-up frame satisfies a preset condition, further includes: the first device determines not to continue receiving the wakeup frame when the wakeup frame does not meet the preset condition, wherein the wakeup frame not meeting the preset condition includes: the calculated distance is greater than a distance preset for an auxiliary wake-up interface of the first device.

In one possible design, the method for waking up a communication interface further includes: checking whether the wake-up frame is real; if the wake-up frame is real, and whether the wake-up frame is really represented by whether the wake-up frame is sent by the second device associated with the first device, waking up a main communication interface corresponding to an auxiliary wake-up interface of the first device through the auxiliary wake-up interface of the first device.

In one possible design, the first device is a station device STA, the auxiliary wake-up interface is a wake-up radio WUR, the main communication interface is a Wi-Fi interface, and the second device is an access point device AP.

In another aspect, the present application provides a method for waking up a communication interface, which is applied to a second device, and the method includes: determining a primary communication interface to be woken up in a primary communication interface associated with a second device; generating a wake-up frame; the wake-up frame carries an identifier of a target receiver of the wake-up frame, and the distance between the identifier and the identifier of the auxiliary wake-up interface corresponding to the main communication interface to be woken up meets a preset distance condition; sending the wake-up frame to a secondary wake-up interface of a primary communication interface associated with the second device.

In a possible design, the obtaining manner of the identifier carried by the wakeup frame includes: and taking an identifier configured for an auxiliary awakening interface corresponding to the main communication interface to be awakened in advance as the target receiver identifier carried by the awakening frame.

In a possible design, the obtaining manner of the identifier carried by the wakeup frame includes: and randomly generating an identifier or selecting an identifier from a generated identifier list, and if the distance between the randomly generated or selected identifier and the identifier configured for the auxiliary wakeup interface in advance meets a preset distance condition, taking the randomly generated or selected identifier as the target receiver identifier carried by the wakeup frame.

In one possible design, before determining, in the primary communication interface associated with the second device, a primary communication interface to be woken up, the method further includes: determining the identifier and/or the error correction distance of an auxiliary awakening interface corresponding to the main communication interface to be awakened; encapsulating the identifier of the auxiliary awakening interface corresponding to the main communication interface to be awakened and/or the error correction distance in any one of the following frames, and sending the frame to the first device; wherein any of the frames comprises: a public action frame, a probe response frame, an association response frame, or a reassociation response frame.

In another aspect, the present application provides an identifier configuration method for an auxiliary wake-up interface, which is applied to a second device, and the method includes: determining an auxiliary wake-up interface identifier and an error correction distance for an auxiliary wake-up interface of the first device associated with the second device; wherein the error correction distance is used to represent the amount of errors in transmission of the identification of the auxiliary wake-up interface that can be corrected by the auxiliary wake-up interface; and sending the auxiliary awakening interface identification and the error correction distance to the first equipment.

In one possible design, a distance between the identifier of the secondary wake-up interface of the first device and the identifier of the secondary wake-up interface of another device associated with the second device is greater than 2 times an error correction distance, where the another device includes any device other than the first device associated with the second device.

In one possible design, the determining, for the secondary wake-up interface of the first device associated with the second device, the secondary wake-up interface identifier and the error correction distance includes: and obtaining the auxiliary awakening interface identification and the error correction distance of the first device associated with the second device from the server associated with the second device.

In one possible design, the determining, for the secondary wake-up interface of the first device associated with the second device, the secondary wake-up interface identifier and the error correction distance includes: and selecting an auxiliary awakening interface identifier from an auxiliary awakening interface identifier list stored in the second device as the identifier of the auxiliary awakening interface of the first device, and using the distance corresponding to the selected auxiliary awakening interface identifier as the error correction distance corresponding to the auxiliary awakening interface of the first device.

In one possible design, the determining, for the secondary wake-up interface of the first device associated with the second device, the secondary wake-up interface identifier and the error correction distance includes: when a first device is associated with a second device, generating an identifier of an auxiliary wake-up interface of the first device; calculating the distance between the generated identifier of the auxiliary awakening interface and the identifiers of the auxiliary awakening interfaces of the plurality of other devices associated with the second device, and determining the minimum distance in the plurality of distances; and determining an error correction distance corresponding to an auxiliary awakening interface of the first equipment according to the minimum distance.

In one possible design, the sending the assisted wake up interface identifier and the error correction distance to the first device includes: encapsulating the auxiliary awakening interface identifier and/or the error correction distance in any one of the following frames, and sending the frames to the first device; wherein any of the frames comprises: a public action frame, a probe response frame, an association response frame, or a reassociation response frame.

In another aspect, the present application provides an identifier configuration method for an auxiliary wake-up interface, which is applied to a first device, and the method includes: receiving an auxiliary awakening interface identifier and an error correction distance sent by second equipment; the auxiliary wake-up interface identifier is an identifier set for an auxiliary wake-up interface of the first device, and the error correction distance is used for indicating the error amount of the auxiliary wake-up interface identifier which can be corrected by the auxiliary wake-up interface in transmission; and setting the auxiliary awakening interface identifier of the first device as the received auxiliary awakening interface identifier, and setting the error correction distance corresponding to the auxiliary awakening interface of the first device as the received error correction distance.

In still another aspect, the present application provides a wireless device having a function of implementing the above-mentioned wake-up method for a communication interface applied to a first device. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions.

In still another aspect, the present application provides a wireless device having a function of implementing the above-mentioned wake-up method for a communication interface applied to a second device. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions.

In another aspect, the present application provides a wireless device having a function of implementing the identifier configuration method applied to the secondary wake-up interface on the second device. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions.

In another aspect, the present application provides a wireless device having a function of implementing the identifier configuration method applied to the auxiliary wake-up interface on the first device. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a diagram illustrating a Wi-Fi module of a second wireless device waking up a first wireless device via a WUR in the prior art;

FIG. 2 is a diagram illustrating an example format of a wakeup frame in the prior art;

fig. 3 is a flowchart of a wireless device wake-up according to an embodiment of the present invention;

fig. 4 is a block diagram of a wireless device provided by an embodiment of the present invention;

fig. 5 is a schematic diagram illustrating a relationship between a wake-up radio identifier and a distance parameter according to an embodiment of the present invention;

fig. 6 is a schematic diagram illustrating an AP sending a wake-up radio identifier and/or a distance parameter r to an STA through an association response frame according to an embodiment of the present invention;

fig. 7 is a schematic diagram illustrating a relationship between a wake-up radio identifier of a wireless device and a wake-up radio identifier in a wake-up frame according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a first wireless device according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a second wireless device according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items. The character "/" herein generally indicates that the former and latter associated objects are in an "or" relationship.

It should be understood that although the terms first, second, third, etc. may be used to describe various messages, requests, and terminals in embodiments of the present invention, these messages, requests, and terminals should not be limited by these terms. These terms are only used to distinguish messages, requests and terminals from one another. For example, a first terminal may also be referred to as a second terminal, and similarly, a second terminal may also be referred to as a first terminal, without departing from the scope of embodiments of the present invention.

The word "if" or "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.

To facilitate understanding of the present application, key terms that may be used in the technical solutions of the present application are first described, and are detailed in table 1 below.

TABLE 1

As shown in fig. 1, in order to reduce the power consumption of the host communication module, the wireless device is added with an ultra-low power consumption wireless interface (e.g., WUR module) which can wake up the host communication module in a deep sleep state after receiving a wake-up frame.

The wake-up frame is much simpler to receive and decode for a wireless device than a standard Wi-Fi frame. The wakeup frame is usually modulated by a modulation scheme that is easy for the receiving end to demodulate, for example, OOK (On-off keying) modulation. Taking OOK modulation as an example, the receiving end determines the information carried by the received signal according to the presence or absence of energy, for example, the presence of energy is "1" and the absence of energy is "0". For a standard Wi-Fi frame, operations such as BCC/LDPC and IFFT are required at a transmitting end, and complex signal processing operations such as FFT and BCC/LDPC decoding are required at a receiving end, which consume a large amount of power.

In order to reduce the WUR energy consumption and reduce the probability of the wakeup frame error, the wakeup frame should be as short as possible and the carried content should be as small as possible.

See fig. 2, which shows one possible structure of a wake-up frame. As shown in fig. 2, the Wake-up frame includes at least a Wake-up Preamble and a Receiver Address (RA). The Wake-up Preamble is used for symbol synchronization, AGC (Automatic Gain Control) setting, and the like. The Receiver Address (RA) may be used to identify the target receiver of the wake-up frame. The Receiver Address (RA) may include a Network identification (Network ID) and a wake radio identification (WUR ID). The receiving Address (Receive Address) may be a combination of a Network identification (Network ID) and a wake radio identification (WUR ID), or the receiving Address (Receive Address) may be a wake radio identification (WUR ID). The wake radio identification (WUR ID) is an identification of a target WUR, which may be selected and assigned by the AP. The Network identification (Network ID) may be information for identifying a Basic Service Set (BSS) and an AP to which the wake-up frame belongs, for example, a BSS color or BSSID, or a compressed BSSID, or a MAC address of a compressed AP. The Network identification (Network ID) may be part of the wake radio identification (WUR ID).

The wake-up frame may further include a Legacy 802.11Preamble (Legacy 802.11Preamble), and/or Control information (Control Info), and/or a Frame Check Sequence (FCS). The Legacy 802.11Preamble (Legacy 802.11Preamble) part can be used for backward compatibility, so that Legacy Wi-Fi equipment can determine that the current frame is a Wi-Fi frame, and select a corresponding channel listening decision threshold and backoff time. Because the WUR does not need to receive the legacy 802.11preamble, the wake-up frame may also be left without the legacy 802.11preamble for transmission efficiency reasons. The Control information (Control Info) may be used to indicate the frame type of the wake frame and other information, e.g., Control commands, as optional items. The Frame Check Sequence (FCS) may be used to help the receiver check the correctness and/or authenticity of the content of the received wake-up frame, i.e. to check the content of the received wake-up frame for errors during transmission, and/or to check the authenticity of the wake-up frame. For transmission efficiency, the wake-up frame may not include a frame check sequence.

As can be seen from the above, the wake-up frame can only be successfully sent to the wake-up radio to ensure that the wake-up radio wakes up the main communication module. However, there is a possibility that an error may occur in the transmission of the wake-up frame, and in order to improve the reliability of the transmission of the wake-up frame, the following two transmission modes of the wake-up frame are mainly used in the prior art.

One is to use Direct Sequence Spread Spectrum (DSSS) technology, which however requires the wake-up radio WUR to sample and quantize the received signal at a higher frequency when receiving the wake-up frame, and the sampling frequency is much higher than the data rate of the wake-up frame, and therefore, may significantly increase the power consumption of the wake-up radio WUR to receive and process the wake-up frame.

Secondly, channel coding (channel coding) techniques such as Binary Convolutional Coding (BCC) are used, and although this method can correct bit errors occurring during transmission of the wake-up frame, channel coding requires the wake-up radio WUR to perform a channel decoding operation when receiving the wake-up frame, and thus, power consumption for the wake-up radio WUR to receive and process the wake-up frame is also significantly increased.

In summary, bit errors may occur during transmission of the wake-up frame, and particularly if the wake-up radio identification (WUR ID) part is erroneous during transmission, it is easy to cause other devices to be woken up by mistake or to call a target device. Conventional transmission schemes using channel coding and using direct sequence spread spectrum significantly increase the power consumption of the wake-up radio WUR. The method mainly solves the problem of how to correct bit errors of a wake-up radio identity (WUR ID) in the transmission process without obviously increasing the power consumption of the WUR.

In this application, the AP obtains the wakeup radio identification (WUR ID) of one STA with which it is associated and determines the range parameter r. The distance parameter r may refer to the number of bit errors occurring in the transmission process of the wake-up radio identifier that can be corrected at most by the receiving end in the scheme provided in the embodiment of the present invention, and the distance parameter r may be used to help the STA to determine whether the target recipient of the received wake-up frame is the STA. And the AP sends the awakening radio identifier and the distance parameter r to the STA. And the AP sends a target first wireless interface identifier (used for indicating a target receiver of the wakeup frame) carried in the wakeup frame to the STA, and the distance between the target first wireless interface identifier and the wakeup radio identifier of the STA is less than or equal to the distance parameter r. When the STA receives a wakeup frame (WUP), if the distance between a target wakeup radio identifier carried in the wakeup frame and the wakeup radio identifier of the STA is smaller than or equal to a distance parameter r, the STA judges that the target receiver of the wakeup frame is the STA. Therefore, the STA can judge whether the wake-up object corresponding to the received wake-up frame is itself by comparing the distance between the two radio identifiers, and the consumed power is small.

In order to prevent the wakeup radio identifier of one STA in the same Basic Service Set (BSS) from being mistaken during transmission and becoming the wakeup radio identifier of another STA, thereby affecting the correctness of the error correction operation of the receiving end on the wakeup radio identifier, the AP needs to ensure that the distance between the wakeup radio identifiers of any two different STAs in the same Basic Service Set (BSS) is greater than or equal to (2r + 1).

Specifically, see fig. 3, which shows a flow of a wireless device wake-up method provided in the present application. As shown in FIG. 3, the process specifically includes the following steps S301 to S305.

S301: the AP obtains a wake radio identification (WUR ID) and a range parameter r for a STA.

In a specific example, the AP may obtain a wake radio identity (WUR ID) and a distance parameter r of the STA from a server, which may be a Wi-Fi Access Controller (Wi-Fi Access Controller). In another particular example, the AP determines a number of STAs with which the AP is most likely to associate. The AP selects a wakeup radio identification List (WUR ID List) from the stored 1 or more wakeup radio identification lists according to the number of STAs which are most likely to be associated with the AP; the AP may select a wakeup radio identification (WUR ID) from the selected wakeup radio identification List (WUR ID List) as a wakeup radio identification (WUR ID) of the STA; the AP may determine a distance parameter r from the selected wake radio identification (WUR ID). In yet another specific example, the AP may generate a wake-up radio identity (WUR ID) as the wake-up radio identity (WUR ID) of the STA, and determine the distance parameter r from the generated wake-up radio identity. For convenience of description, the distance parameter r may also be referred to as an error correction distance.

It should be noted that, in the above three specific examples, the distance parameter r may be used to help the STA determine a target recipient of a received wakeup frame. In addition, the AP needs to ensure that the distance between the STA's wake-up radio identity and the wake-up radio identities of other STAs within the same Basic Service Set (BSS) is greater than or equal to (2r + 1).

S302: the AP sends the wakeup radio identification (WUR ID) and the range parameter r to the STA.

Wherein the wake radio identification (WUR ID) and the distance parameter r may be transmitted together or separately.

S303: the STA receives the awakening radio identifier and the distance parameter r, and sets the awakening radio identifier and the distance parameter r of the STA as the received awakening radio identifier and the distance parameter r respectively.

It should be noted that the set wake-up radio identifier and the distance parameter r may be used for the comparison in step S305.

S304: the AP generates and sends a wakeup frame to the STA.

The wakeup frame carries a target wakeup radio identifier, and the target wakeup radio identifier needs to satisfy a condition that a distance from the wakeup radio identifier of the STA is less than or equal to the distance parameter r. It should be noted that the target wake-up radio identifier may also be referred to as an identifier of a target secondary wake-up interface, and the device that the wake-up frame wants to wake up may be referred to as a target device, and the wake-up frame is used to wake up a primary communication interface of the target device. The target device may be the STA or other STA connected to the AP.

The target assisted wake interface identification may include any one or a combination of WUR ID, WUR address, network identification. The network identifier may include a BSS color (basic service set color, or referred to as basic server identifier), or a BSSID, or a compressed MAC address of the AP.

S305: when an STA receives a wakeup frame (WUP), the STA calculates the distance between a target wakeup radio identifier carried in the received wakeup frame and a wakeup radio identifier of the STA; and comparing the calculated distance with the distance parameter r, and executing corresponding processing actions according to the calculated result.

Specifically, if the calculated distance is less than or equal to the distance parameter r, the STA determines that the target recipient of the wakeup frame is the STA, and the STA continues to receive and process the wakeup frame; and if the calculated distance is greater than the distance parameter r, the STA judges that the target receiver of the wake-up frame is not the STA, and the STA stops receiving and processing the wake-up frame.

The relationship between the calculated distance and the distance parameter r may be a magnitude relationship between the two, specifically, the magnitude relationship between the two may be determined using a difference value, and may also be determined using a ratio relationship. When the ratio relation is used for determination, a ratio threshold value is preset, for example, 1, if the ratio of the calculated distance to the distance parameter r is less than or equal to a preset ratio threshold value 1, the calculated distance is less than or equal to the distance parameter r, and conversely, if the ratio of the calculated distance to the distance parameter r is greater than the preset ratio threshold value 1, the calculated distance is greater than the distance parameter r.

It should be noted that the calculated distance may be a Hamming distance (Hamming distance), that is, the number of different bits at the position corresponding to the target first radio interface identifier in the wakeup frame and the first radio interface identifier of the first radio device. Comparing two values using Hamming distance (Hamming distance) may simplify the calculation. Alternatively, the Distance may be an Euclidean Distance (Euclidean Distance), for example, the Euclidean Distance between the target first wireless interface identifier and the first wireless interface identifier of the first wireless device may be calculated as two vectors. Alternatively, the Distance may be a Minkowski Distance (Minkowski Distance) or another mathematically defined Distance. Of course, the present application is not limited to the above three distance calculation methods, and may also be any other mathematical calculation method for calculating the difference between two character sequences.

The following describes the technical solution of the present application in detail, and first briefly describes an application scenario of the present application. The present application may be applied to, but is not limited to, Wi-Fi based internet of things (IoT) and wearable Wi-Fi networks. The wearable Wi-Fi network is a Wi-Fi network formed by a Mobile phone serving as a virtual access point (SoftAP, also called Mobile AP) and associated wearable equipment. The devices (STAs) in the above networks are powered by small capacity batteries, and the devices have low power consumption and long battery life requirements.

Referring to fig. 4, a block diagram of a wireless device provided by the present application is shown. The wireless device may act as a second wireless device (or referred to as a second device), such as an AP, or may act as a first wireless device (or referred to as a first device), such as a STA. As shown in fig. 4, module 100 is a wireless device, and thus module 100 may be referred to as wireless device 100. Wireless device 100 includes, but is not limited to, sub-modules 101, 102, 103, 104, and 105.

The sub-module 101 corresponds to a first transceiver of the wireless device 100, and is a specific implementation manner of a first wireless interface (which may be referred to as an auxiliary wake-up interface) of the wireless device 100, which may be provided by an auxiliary wake-up module (e.g., a WUR module), and may be configured to receive a wake-up frame (WUP) sent by other wireless devices and/or send a wake-up frame to other wireless devices, and send a wake-up signal to the sub-module 102, i.e., a second transceiver (a second wireless interface), after receiving the wake-up frame, so as to wake up the sub-module 102 (a second wireless interface).

The sub-module 102 corresponds to a second transceiver of the wireless device 100, i.e., a second wireless interface (which may be referred to as a primary communication interface), which may be provided by a primary communication module (e.g., an 802.11 module), which may be used to send wakeup frames and to send and receive other messages (e.g., Wi-Fi frames).

The sub-module 103 corresponds to a processor (which may be one or more) and may implement the selection or generation of the wake-up radio identity, and may also implement the configuration of the wake-up radio identity. The sub-module 104 corresponds to a memory (which may be one or more). The sub-module 103 and the sub-module 104 may be shared by a first transceiver (first wireless interface) and a second transceiver (second wireless interface).

The sub-module 105 corresponds to an antenna, and the first transceiver 101 and the second transceiver 102 may share the same antenna sub-module 105, so that the hardware cost of the device may be reduced and the implementation manner is simpler. Of course, the first transceiver 101 and the second transceiver 102 may also correspond to different antennas, especially when both operate on different frequency bands.

In a practical product, the wireless device 100 may be implemented by a system on chip (SoC) or by an integrated circuit or by a combination of two hardware modules. The wireless device 100 may perform the wireless device wake-up method provided herein via the first transceiver and the second transceiver.

It should be noted that, in the present application, the Wi-Fi interface is a wireless interface provided by the Wi-Fi module; the 802.11 interface and the Wi-Fi interface are the same and are wireless interfaces provided by the 802.11 module; Wi-Fi module and 802.11 module refer to the same; the WUR interface is a wireless interface provided by the WUR module; the WUR module and the auxiliary awakening module point to the same; the wake-up radio and the wake-up receiver are referred to the same.

The application scenario and the specific structure of the used device are introduced above, and the following describes the technical solution of the present application with two specific embodiments.

Example one

The structure of the wakeup frame (WUP) in this embodiment is shown in fig. 2, and the wakeup frame (WUP) includes at least a wakeup Preamble (Wake-up Preamble) and a receiver Address (Receive Address, RA). The receiver Address (Receive Address) may include a Network identification (Network ID) and a wake radio identification (WUR ID); alternatively, the receiver Address (Receive Address) may be a combination of a Network identification (Network ID) and a wake radio identification (WUR ID); alternatively, the receiver Address (Receive Address) may be a wake radio identity (WUR ID). The Network identification (Network ID) may be part of the wake radio identification (WUR ID). The receiver Address (Receive Address) or the wake radio identification (WUR ID) may be used to identify the target receiver of the wake frame. The wakeup frame (WUP) may further include a Legacy 802.11Preamble (Legacy 802.11Preamble), and/or Control information (Control Info), and/or a Frame Check Sequence (FCS), and/or authentication information (MIC).

In this embodiment, mainly considering the process of waking up the STA, the STA can correct at most r bit errors occurring during transmission of the wake-up radio identifier through the special structure of the wake-up radio identifier. It should be noted that, the distance between the target wake-up radio identifier filled in the wake-up frame sent by the AP to the STA and the wake-up radio identifier of the STA is zero, that is, the target wake-up radio identifier filled in the wake-up frame sent by the AP is the wake-up radio identifier of the target STA.

The AP assigns a Wake radio identification (WUR ID) to a STA's Wake radio (WUR) and determines the range parameter r, and the process by which the AP wakes up the STA can be shown as steps A1-A5.

Step A1: the AP obtains the STA's wake radio identification (WUR ID) and range parameter r.

In one example, the AP may obtain a wake radio identification (WUR ID) and a range parameter r of the STA from one server; the server may be a Wi-Fi Access Controller (Wi-Fi Access Controller).

In another example, the AP obtains the wakeup radio identification (WUR ID) and range parameter r of one STA from 1 or more wakeup radio identification lists (WUR ID lists) stored locally. Specifically, this example can be realized by the following steps a111 to a 114.

Step A111: the AP determines the number of STAs most likely to be associated. The AP may estimate the number of STAs most likely to be associated with the AP according to a specific application scenario, for example, in a wearable Wi-Fi network, the smartphone serves as a SoftAP, and the smartphone may estimate the number of STAs most likely to be associated with the smartphone, for example, the number of STAs most likely to be associated with the smartphone is 100 STAs at most.

Step A112: the AP selects a wake-up radio identification List (WURID List) from the stored 1 or more wake-up radio identification lists (WURID List) according to the determined number of most likely associated STAs. It will be appreciated that the number of wake-up radio identities (WUR IDs) listed in the selected wake-up radio identity List (WUR ID List) is greater than or equal to the number of most likely associated STAs determined by the AP.

Step A113: the AP selects a wakeup radio identification (WUR ID) from the selected wakeup radio identification List (WUR ID List) as a wakeup radio identification (WUR ID) of the STA.

Step A114: the AP determines the distance parameter r from the selected wakeup radio identification List (WURID List) and the selected wakeup radio identification (WURID). Wherein a distance between any two different wake-up radio identities (WURIDs) in the selected List of wake-up radio identities (WURIDs List) is greater than or equal to (2r + 1). Any one of the selected wake-up radio identities List (WURIDs) has a corresponding distance parameter r. It should be noted that, in this implementation manner, a plurality of wake-up radio identifier lists are stored in advance, one wake-up radio identifier list is selected from the plurality of wake-up radio identifier lists, and then one wake-up radio identifier is selected from the selected wake-up radio identifier list as the wake-up radio identifier that needs to be generated. Of course,

in both examples above, the wake-up radio identity and distance parameters are pre-generated and not generated online. However, in another example below, after a new STA connects to the AP, the AP generates the wake up radio id and the distance parameter for the new STA online. It should be noted that, the pre-generation method may also be a generation method in which the AP detects all connected STAs and generates the wake-up radio identifier and the distance parameter for each STA in the following manner.

In yet another example, the AP generates a wake radio identification (WUR ID) and calculates a distance parameter r. The specific implementation manner can be realized by the following steps a121 to a 125.

Step A121: the AP generates a wake-up radio identity (WUR ID), e.g., randomly generates a bit sequence of length N, or generates a bit sequence of length N according to a specific algorithm, e.g., a hash algorithm or a cipher algorithm.

Step A122: the AP calculates the distance between the generated wake-up radio identity and the wake-up radio identities of several other already associated STAs.

Step A123: determining a minimum distance of several distances, recording the generated wake-up radio identity and the minimum distance.

Step A124: the AP repeats the steps A121 to A123 for a total of K times, wherein K is more than or equal to 1, and K is 10 times.

Step A125: the AP selects the optimal one of the K generated awakening radio identifications as the awakening radio identification of the STA. Here, "optimal" means that the minimum distance between the wake-up radio identity and the wake-up radio identities of other already associated STAs is the largest of the K minimum distances corresponding to the K wake-up radio identities. For convenience of description, the minimum distance corresponding to the optimal wake-up radio identifier may be referred to as an optimal distance, denoted as d, and the determined distance parameter may be denoted as r. And the AP determines a distance parameter r according to the maximum minimum distance d.

It should be noted that the distance parameter r is a bit error number occurring in the transmission process of the wake-up radio identifier that can be corrected at most when the receiving end receives one wake-up frame in this embodiment, and the bit error number occurring in the transmission process may be embodied as: the receiving end receives the different bit quantity between the awakening radio identification in the awakening frame and the awakening radio identification of the receiving end.

However, in order to prevent the wakeup radio identifier of one STA in the same Basic Service Set (BSS) from being mistaken during transmission and becoming the wakeup radio identifier of another STA, thereby affecting the correctness of the error correction operation of the receiving end on the wakeup radio identifier, the AP needs to ensure that the distance between the wakeup radio identifiers of any two different STAs in the same Basic Service Set (BSS) is greater than or equal to (2r + 1). For ease of understanding, the relationship between the above parameters is described using fig. 5. See fig. 5, which shows a relationship schematic of a wake up wireless identity (WUR ID) and a distance parameter r. As shown in fig. 5, the length of the wake-up radio identifier is N-24 bits, the distance parameter r is 4, and the parameter d is 9. The distance parameters r1, r2 and r3 may be different. The circle centers of the circles in fig. 5 represent the STA's own wake-up radio id, the radii represent the number of bits that the STA can correct the wake-up radio id at most and the own wake-up radio id after receiving the wake-up frame, and d1, d2, and d3 are the distances between the wake-up radio ids of two STAs. If any two circles intersect, the wakeup radio identifier of one STA may fall within the two intersecting circles after it is mistaken during transmission and becomes the wakeup radio identifier of another STA, and then a situation may occur where two STAs are simultaneously woken up.

Thus, d is greater than or equal to 2r +1, that is, r is less than or equal to (d-1)/2. To obtain the maximum distance parameter r, then: r is (d-1)/2. It will be appreciated that r is an integer, and thus if d is an odd number, r is (d-1)/2; if d is an even number, r is (d/2-1)

Step A2: the AP sends the wakeup radio identification (WUR ID) and the distance parameter r to the STA through a Wi-Fi interface.

In one example, the AP may send the wake up radio identity (WUR ID) and/or the distance parameter r to the STA through a Public Action Frame (Public Action Frame) or a Probe Response Frame (Probe Response Frame) or an Association Response Frame (Association Response Frame) or a Reassociation Response Frame (Reassociation Response Frame), etc. A process in which the AP transmits a wakeup radio identification (WUR ID) and/or a distance parameter r to the STA through an Association Response Frame (Association Response Frame) is shown in fig. 6.

Specifically, the wakeup radio identifier (WUR ID) and/or the distance parameter r may be loaded as a new Information Element (IE) in the Public Action Frame (Public Action Frame) or Probe Response Frame (Probe Response Frame) or Association Response Frame (Association Response Frame) or Reassociation Response Frame (Reassociation Response Frame), etc.

In addition, to improve the security of the transmission, the wake radio identification (WUR ID) and/or the distance parameter r may be transmitted by encryption. In addition, the AP may transmit the wakeup radio identification (WUR ID) and the range parameter r to the STA together through one frame, and of course, the AP may transmit the wakeup radio identification (WUR ID) and the range parameter r to the STA through two frames, respectively.

Step A3: the STA receives the wake radio identification (WURID) and a distance parameter r through a Wi-Fi interface.

Wherein the STA receives a wake-on radio identification (WUR ID) and a distance parameter r sent by the AP through a Wi-Fi interface. The STA sets its own wake radio identity (WUR ID) and range parameter r to the received wake radio identity (WUR ID) and range parameter r. That is, the STA sets its own wake radio identity (WUR ID) as the received wake radio identity (WUR ID), and the STA sets its own distance parameter r as the received distance parameter r.

It should be noted that the above steps a 1-A3 are procedures in which the AP allocates a wakeup radio identity (WUR ID) to a wakeup radio (WUR) of a STA and determines the distance parameter r, and the following steps a4 and a5 are procedures in which the AP transmits a wakeup frame to the wakeup radio. However, before sending the wakeup frame to the STA, the process of allocating the wakeup radio identifier to the STA and determining the distance parameter r is not necessarily included, and it is only necessary to ensure that the wakeup radio identifier is allocated to the STA and the distance parameter r is determined before sending the wakeup frame.

Step A4: the AP generates and sends a wakeup frame to the STA.

When the AP generates a wakeup frame to be sent to the STA, the distance between a target wakeup radio identification (WURID) filled in the wakeup frame and a wakeup radio identification (WURID) of the STA is zero, namely the target wakeup radio identification (WURID) filled in the wakeup frame by the AP is the wakeup radio identification (WURID) of the STA. And the AP sends the wake-up frame to the STA.

Step A5: and the STA receives the wake-up frame through a WUR interface. When the STA receives a wakeup frame (WUP), the STA calculates a distance between a target wakeup radio identifier carried in the received wakeup frame and a wakeup radio identifier of the STA, and for convenience of description, the calculated distance may be referred to as a calculated distance.

It should be noted that the wake-up radio identifier of the STA is the wake-up radio identifier sent by the AP and received by the STA, as described in step 3 above. The calculated distance may be used to count the number of bits in the received wake-up frame that are different between the target wake-up radio identifier and the corresponding bit position of the STA wake-up radio identifier.

If the calculated distance is less than or equal to the distance parameter r, the STA can judge that the target receiver of the received wake-up frame is the STA, so that the STA continues to receive and process the wake-up frame and wakes up the main communication module of the STA at least according to the content of the wake-up frame; if the calculated distance is greater than the distance parameter r, the STA may determine that the target recipient of the received wake-up frame is not itself, and thus the STA stops receiving and processing the wake-up frame and does not wake up the main communication module (e.g., Wi-Fi module).

The STA wakes up a main communication module (such as a Wi-Fi module) of the STA at least according to the content of the wake-up frame, and specifically includes but is not limited to the following three ways.

First, the STA may wake up a primary communication module (e.g., a Wi-Fi module) of the STA according to the STA being a target recipient of the wake-up frame.

In a second manner, the STA may obtain a Frame Check Sequence (FCS) carried in the awake frame, generate a frame check sequence of the awake frame, and determine whether the obtained frame check sequence is the same as the generated frame check sequence, so as to determine whether the awake frame has an error during transmission; if no error occurs, the STA wakes up a main communication module (such as a Wi-Fi module) of the STA; if so, the STA stops receiving and processing the wake-up frame and does not wake up a main communication module (such as a Wi-Fi module).

In a third mode, the STA may determine whether the wakeup frame is real according to authentication information (MIC) carried by the wakeup frame, that is, whether the wakeup frame is sent by an AP associated with the STA; if true, the STA wakes up a main communication module (such as a Wi-Fi module) of the STA; if not, the STA stops receiving and processing the wake-up frame and does not wake up the main communication module (such as a Wi-Fi module).

It should be noted that the second and third manners are to check whether the wake-up frame is legal before waking up the main communication module. The second way is to check whether the wakeup frame is erroneous in the transmission process, and the third way is to check whether the AP sending the wakeup frame is an AP associated with the STA.

As can be seen from the above technical solutions, in the first embodiment of the present invention, the AP allocates the wakeup radio identifier (WUR ID) of the wakeup radio of the STA, so that the STA can correct at most r bit errors occurring during the transmission of the wakeup radio identifier. Compared with the mode of using channel coding to realize error correction and using direct sequence spread spectrum to improve the transmission of the wake-up frame in the prior art, the error correction method provided by the embodiment has lower power consumption of the WUR.

Example two

A Wake-up frame (WUP) structure according to a second embodiment of the present invention is shown in fig. 2, where the Wake-up frame (WUP) includes at least a Wake-up Preamble and a Receive Address (Receive Address). The Receive Address (Receive Address) may include a Network identification (Network ID) and a wake radio identification (WUR ID); alternatively, the receiving Address (Receive Address) may be a combination of a Network identification (Network ID) and a wake radio identification (WUR ID); alternatively, the receiving Address (Receive Address) may be a wake radio identity (WUR ID). The Network identification (Network ID) may be part of the wake radio identification (WUR ID). The Receive Address (Receive Address) or the wake radio identification (WUR ID) is used to identify the target recipient of the wake frame. The wakeup frame (WUP) may further include a Legacy 802.11Preamble (Legacy 802.11Preamble), and/or Control information (Control Info), and/or a Frame Check Sequence (FCS), and/or authentication information (MIC).

It should be noted that, compared to the first embodiment of the present invention, in the second embodiment of the present invention, mainly considering preventing an attacker from intercepting a target wake-up radio identifier in a wake-up frame, a target wake-up radio identifier (WUR ID) filled in the wake-up frame sent to the STA by the AP is randomly selected, and the distance between the target wake-up radio identifier (WUR ID) and the wake-up radio identifier of the target STA (i.e., the STA that wants to wake up) is less than or equal to the distance parameter r, and the target wake-up radio identifier (WUR ID) filled in the wake-up frame sent to the STA by the AP may be different from the wake-up radio identifier of the target STA. The second embodiment of the invention is suitable for scenes with smaller error probability of the awakening frame.

The AP assigns a Wake radio identification (WUR ID) to a STA's Wake radio (WUR) and determines the range parameter r, and the process by which the AP wakes up the STA can be shown as steps B1-B5 below.

Step B1: the AP obtains the STA's wake radio identification (WUR ID) and range parameter r.

In one example, the AP may obtain a wake radio identification (WUR ID) and a range parameter r of the STA from a server; the server may be a Wi-Fi Access Controller (Wi-Fi Access Controller). In another example, the AP obtains the wakeup radio identification (WUR ID) and range parameter r of one STA from 1 or more wakeup radio identification lists (WUR ID lists) stored locally. The specific implementation manner can be realized by referring to the steps A111-A114. In yet another example, the AP generates a wake-up radio identification (WUR ID) and calculates the distance parameter r. The specific implementation manner can be realized through the steps a121 to a 125.

Step B2: the AP sends the wakeup radio identification (WUR ID) and the distance parameter r to the STA through a Wi-Fi interface.

Step B3: the STA receives the wake radio identification (WURID) and a distance parameter r through a Wi-Fi interface.

It should be noted that, the descriptions of the steps B1 through B3 can be referred to the descriptions of the steps a1 through A3 in example 1, and are not repeated herein.

Step B4: the AP generates and sends a wakeup frame to the STA.

Unlike the first embodiment, when the AP generates the wake-up frame to be sent to the STA, the target wake-up radio identifier (WUR ID), i.e. the target recipient identifier, filled in the wake-up frame sent to the STA by the AP may be randomly generated or randomly selected, i.e. the target wake-up radio identifier (WUR ID) filled in the wake-up frame by the AP may be different from the wake-up radio identifier (WUR ID) of the target STA (STA that wants to wake up), but as shown in fig. 7, the distance between the target wake-up radio identifier (WUR ID) filled in the wake-up frame sent to the STA by the AP and the wake-up radio identifier of the target STA is required to satisfy a preset distance condition, such as being less than or equal to the distance parameter r of the target STA itself.

Step B5: and the STA receives the wake-up frame through a WUR interface. When the STA receives a wakeup frame (WUP), the STA calculates the distance between a target wakeup radio identifier carried in the received wakeup frame and a wakeup radio identifier of the STA; if the calculated distance is less than or equal to the distance parameter r, the STA may determine that the target receiver of the received wake-up frame is itself, so that the STA continues to receive and process the wake-up frame and wakes up a main communication module (such as a Wi-Fi module) of the STA according to the content of the wake-up frame; if the calculated distance is greater than the distance parameter r, the STA may determine that the target recipient of the received wake-up frame is not itself, and thus the STA stops receiving and processing the wake-up frame and does not wake up the main communication module (e.g., Wi-Fi module).

Comparing the second embodiment of the present invention with the first embodiment of the present invention, the difference between the two embodiments is: in the first embodiment of the present invention, the distance between the target wake-up radio identifier (WUR ID) filled in the wake-up frame sent to the STA by the AP and the wake-up radio identifier of the STA is zero, that is, the target wake-up radio identifier (WUR ID) filled in the wake-up frame sent to the STA by the AP is the wake-up radio identifier of the STA. In the second embodiment of the present invention, the distance between the target wake-up radio identifier (WUR ID) filled in the wake-up frame sent to the STA by the AP and the wake-up radio identifier of the STA is less than or equal to the distance parameter r, that is, the target wake-up radio identifier (WUR ID) filled in the wake-up frame sent to the STA by the AP is randomly selected and may not be the wake-up radio identifier of the STA.

In the embodiment of the invention, the target wake-up radio identifier (WUR ID) filled in the wake-up frame sent to the STA by the AP can be randomly selected, and the distance between the target wake-up radio identifier (WUR ID) filled in the wake-up frame sent to the STA by the AP and the wake-up radio identifier of the STA is less than or equal to the distance parameter r, so that the power consumption for waking up the STA can be reduced, the difficulty of intercepting the wake-up radio identifier of the STA by an attacker can be increased, and the safety of the system can be improved.

In the present application, determining, by a second wireless device (e.g., an AP), an identity of a first wireless interface of a first wireless device (e.g., a STA) and a range parameter r may enable the first wireless device to correct up to r bit errors that may occur during transmission by the identity of the first wireless interface. The proposed scheme is a low complexity error correction scheme without introducing additional communication overhead. In addition, the target wake radio identifier (WUR ID) filled by the AP in the wake frame transmitted to the STA may be randomly generated or randomly selected, and the distance between the target wake radio identifier (WUR ID) filled by the AP in the wake frame transmitted to the STA and the wake radio identifier of the STA is less than or equal to the distance parameter r, so that the difficulty of interception of the wake radio identifier of the STA by an attacker is increased, and the security of the system can be increased.

Referring to fig. 8, a schematic diagram of a first wireless device provided in the present application is shown, including: a bus, a secondary wake-up interface 801, a processor 802, and a memory 803. The auxiliary wake-up interface 801, the controller/processor 802 and the memory 803 are interconnected by a bus. Wherein:

the bus may include a path that transfers information between the various components of the first wireless device.

An auxiliary wake-up interface 801, configured to receive a wake-up frame, where the wake-up frame is used to wake up a main communication interface of a target device, and the wake-up frame carries an identifier of a target auxiliary wake-up interface, where the target auxiliary wake-up interface is an identifier of an auxiliary wake-up interface corresponding to the main communication interface of the target device to be woken up by the wake-up frame;

a processor 802, configured to calculate a distance between an identifier of an auxiliary wake-up interface carried in the wake-up frame and an identifier preset for the auxiliary wake-up interface of the wireless device;

the auxiliary wake-up interface 801 is further configured to determine whether to wake up a main communication interface corresponding to the auxiliary wake-up interface of the wireless device according to whether the wake-up frame meets a preset condition; wherein, whether the wakeup frame meets the preset condition comprises: whether a relationship between the distance calculated by the processor and a distance set in advance for the auxiliary wake-up interface of the wireless device satisfies a preset relationship.

The memory 803 stores a program for executing the present invention, and may store an operating system and other application programs.

In one example, whether a relationship between the calculated distance and a distance previously set for the secondary wake-up interface of the wireless device satisfies a preset relationship includes: whether a ratio between the calculated distance and a distance preset for the auxiliary wake-up interface of the wireless device satisfies a preset ratio relationship.

In one example, whether a relationship between the calculated distance and a distance previously set for the secondary wake-up interface of the wireless device satisfies a preset relationship includes: whether the calculated distance is less than or equal to a distance previously set for the secondary wake-up interface of the wireless device.

In one example, the determining, by the auxiliary wake-up interface 801, whether to wake up the primary communication interface corresponding to the auxiliary wake-up interface of the wireless device according to whether the wake-up frame satisfies a preset condition includes:

the auxiliary wake-up interface 801 is specifically configured to determine to wake up a main communication interface corresponding to the auxiliary wake-up interface of the wireless device when the wake-up frame meets a preset condition, where the wake-up frame meets the preset condition and includes: the calculated distance is less than or equal to a distance previously set for an auxiliary wake-up interface of the wireless device.

In an example, the determining, by the auxiliary wake-up interface 801, whether to wake up the primary communication interface corresponding to the auxiliary wake-up interface of the wireless device according to whether the wake-up frame satisfies a preset condition further includes:

the auxiliary wakeup interface 801 is specifically configured to determine not to continue receiving the wakeup frame when the wakeup frame does not satisfy the preset condition, where the wakeup frame not satisfying the preset condition includes: the calculated distance is greater than a distance previously set for an auxiliary wake-up interface of the wireless device.

In one example, the auxiliary wake-up interface 801 is further configured to check whether the wake-up frame is authentic; and if the wake-up frame is real, waking up a main communication interface corresponding to an auxiliary wake-up interface of the wireless equipment.

Referring to fig. 9, a schematic diagram of a second wireless device provided in the present application is shown, including: a bus, a processor 901, a communication interface 902, and a memory 903. The processor 901, the communication interface 902, and the memory 903 are connected to each other by a bus. Wherein:

the bus may include a path to transfer information between the various components of the second wireless device.

A processor 901 configured to determine, among primary communication interfaces associated with the wireless device, a primary communication interface to wake up; and generating a wake-up frame; the wake-up frame carries an identifier of a target receiver of the wake-up frame, and the distance between the identifier and the identifier of the auxiliary wake-up interface corresponding to the main communication interface to be woken up meets a preset distance condition;

a communication interface 902 for transmitting the wake-up frame to a secondary wake-up interface of a primary communication interface associated with the wireless device.

The memory 903 stores a program for executing the present invention, and may store an operating system and other application programs.

In an example, the processor 901 is further configured to use an identifier configured for an auxiliary wake-up interface corresponding to the main communication interface to be woken up in advance as the target recipient identifier carried in the wake-up frame.

In an example, the processor 901 is further configured to randomly generate an identifier or select an identifier from a generated identifier list, and if a distance between the randomly generated or selected identifier and an identifier configured for the auxiliary wakeup interface in advance meets a preset distance condition, use the randomly generated or selected identifier as the target recipient identifier carried by the wakeup frame.

The present application further provides a wireless device, which may be the second wireless device, and specifically includes: a processor and a communication interface.

A processor configured to determine an auxiliary wake-up interface identifier and an error correction distance for an auxiliary wake-up interface of a first device associated with the wireless device; wherein the error correction distance is used to represent the amount of errors in transmission of the identification of the auxiliary wake-up interface that can be corrected by the auxiliary wake-up interface;

and the communication interface is used for sending the auxiliary awakening interface identifier and the error correction distance to the first equipment.

In one example, a distance between an identification of the secondary wake-up interface of the first device and an identification of secondary wake-up interfaces of other devices associated with the wireless device, including any device other than the first device associated with the wireless device, is greater than 2 times an error correction distance.

In one example, the processor, when executing the step of determining the secondary wake-up interface identification and the error correction distance for the secondary wake-up interface of the first device associated with the wireless device, is specifically configured to obtain the secondary wake-up interface identification and the error correction distance for the first device associated with the wireless device from a server associated with the wireless device.

In an example, the processor, when executing the step of determining an auxiliary wake-up interface identifier and an error correction distance for an auxiliary wake-up interface of a first device associated with the wireless device, is specifically configured to select an auxiliary wake-up interface identifier from a list of auxiliary wake-up interface identifiers stored in the wireless device as an identifier of the auxiliary wake-up interface of the first device, and use a distance corresponding to the selected auxiliary wake-up interface identifier as an error correction distance corresponding to the auxiliary wake-up interface of the first device.

In an example, the processor, when executing the step of determining an auxiliary wake-up interface identifier and an error correction distance for an auxiliary wake-up interface of a first device associated with the wireless device, is specifically configured to generate an identifier of the auxiliary wake-up interface of the first device when the first device is associated with the wireless device; calculating the distance between the generated identifier of the auxiliary wake-up interface and identifiers of auxiliary wake-up interfaces of a plurality of other devices associated with the wireless device, and determining the minimum distance in the plurality of distances; and determining an error correction distance corresponding to an auxiliary wakeup interface of the first device according to the minimum distance.

The present application further provides a wireless device, which may be the first wireless device, and specifically includes a communication interface and a processor.

The communication interface is used for receiving the auxiliary awakening interface identifier and the error correction distance; the auxiliary wake-up interface identifier is an identifier set for an auxiliary wake-up interface of the wireless device, and the error correction distance is used to indicate an error amount occurring in transmission of the auxiliary wake-up interface identifier that can be corrected by the auxiliary wake-up interface. Wherein the communication interface may be an auxiliary wake-up interface.

And the processor is used for setting the auxiliary awakening interface identifier of the wireless equipment as the received auxiliary awakening interface identifier and setting the error correction distance corresponding to the auxiliary awakening interface of the wireless equipment as the received error correction distance.

The relevant parts among the method embodiments of the invention can be mutually referred; the apparatus provided in the respective apparatus embodiments is adapted to perform the method provided in the respective method embodiments, so that the respective apparatus embodiments may be understood with reference to the relevant parts in the relevant method embodiments. The names of the messages/frames, modules or units provided in the embodiments of the present invention are only examples, and other names may be used as long as the roles of the messages/frames, modules or units are the same. It will be understood by those skilled in the art that all or part of the steps in the method for implementing the above embodiments may be implemented by instructing the relevant hardware through a program, which may be stored in a storage medium readable by a device and includes all or part of the steps when executed, such as: FLASH, EEPROM, etc.

The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that different embodiments may be combined, and the above-mentioned embodiments are only examples of the present invention and are not intended to limit the scope of the present invention, and any combination, modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A wake-up method of a communication interface is applied to a first device, the first device has a main communication interface and an auxiliary wake-up interface corresponding to the main communication interface, and the method includes:

the auxiliary wake-up interface of the first device receives a wake-up frame sent by a second device, the wake-up frame is used for waking up a main communication interface of a target device, the wake-up frame carries an identifier of a target auxiliary wake-up interface, and the target auxiliary wake-up interface is an auxiliary wake-up interface corresponding to the main communication interface of the target device to be woken up by the wake-up frame;

the first device calculates the distance between the identifier of the auxiliary awakening interface carried by the awakening frame and the identifier preset for the auxiliary awakening interface of the first device, wherein the distance between the identifiers is the difference between the character sequences of the identifiers;

the first equipment determines whether to awaken a main communication interface corresponding to the auxiliary awakening interface of the first equipment through the auxiliary awakening interface of the first equipment or not according to whether the awakening frame meets a preset condition or not; wherein, whether the wakeup frame meets the preset condition comprises: whether a relationship between the distance calculated by the first device and a distance preset for the auxiliary wake-up interface of the first device satisfies a preset relationship.

2. The wake-up method of claim 1, wherein whether a relationship between the distance calculated by the first device and a distance preset for the auxiliary wake-up interface of the first device satisfies a preset relationship comprises: whether the distance calculated by the first device is less than or equal to a distance preset for the auxiliary wake-up interface of the first device.

3. The method according to claim 1 or 2, wherein the determining, by the first device, whether to wake up the main communication interface corresponding to the auxiliary wake-up interface of the first device through the auxiliary wake-up interface of the first device according to whether the wake-up frame satisfies a preset condition includes:

the first device determines to wake up a main communication interface corresponding to the auxiliary wake-up interface of the first device through the auxiliary wake-up interface of the first device when the wake-up frame meets a preset condition, where the wake-up frame meets the preset condition and includes: the calculated distance is less than or equal to a distance preset for an auxiliary wake-up interface of the first device.

4. The method of claim 3, further comprising:

checking whether the wake-up frame is real, wherein whether the wake-up frame is really represented by whether the wake-up frame is sent by the second device associated with the first device;

and if the wake-up frame is real, determining to wake up a main communication interface corresponding to the auxiliary wake-up interface of the first device through the auxiliary wake-up interface of the first device.

5. A wake-up method of a communication interface, applied to a second device, includes:

determining a primary communication interface to be woken up in a primary communication interface associated with a second device;

generating a wake-up frame; the wake-up frame carries an identifier of a target receiver of the wake-up frame, the distance between the identifier and an identifier of an auxiliary wake-up interface corresponding to the main communication interface to be woken up meets a preset distance condition, and the distance between the identifiers is the difference between character sequences of the identifiers;

and sending the wake-up frame to an auxiliary wake-up interface of a main communication interface associated with the second device, so that the first device wakes up the main communication interface corresponding to the auxiliary wake-up interface based on that the distance between the identifier in the wake-up frame and the identifier of the auxiliary wake-up interface corresponding to the main communication interface to be woken up meets a preset distance condition.

6. The method according to claim 5, wherein the obtaining of the identifier carried in the wakeup frame includes:

and taking an identifier configured for an auxiliary awakening interface corresponding to the main communication interface to be awakened in advance as the target receiver identifier carried by the awakening frame.

7. The method according to claim 5, wherein the obtaining of the identifier carried in the wakeup frame includes:

and randomly generating an identifier or selecting an identifier from a generated identifier list, and if the distance between the randomly generated or selected identifier and the identifier configured for the auxiliary wakeup interface in advance meets a preset distance condition, taking the randomly generated or selected identifier as the target receiver identifier carried by the wakeup frame.

8. The method of claim 5, wherein before determining the primary communication interface to be woken up in the primary communication interface associated with the second device, the method further comprises:

determining the identifier and/or the error correction distance of an auxiliary awakening interface corresponding to the main communication interface to be awakened;

encapsulating the identifier of the auxiliary awakening interface corresponding to the main communication interface to be awakened and/or the error correction distance in any one of the following frames, and sending the frame to the first device; wherein any of the frames comprises: a public action frame, a probe response frame, an association response frame, or a reassociation response frame.

9. An identification configuration method of an auxiliary wake-up interface is applied to a second device, and comprises the following steps:

determining an auxiliary wake-up interface identifier and an error correction distance for an auxiliary wake-up interface of the first device associated with the second device; wherein the error correction distance is used to represent the amount of errors in transmission of the identification of the auxiliary wake-up interface that can be corrected by the auxiliary wake-up interface;

sending the auxiliary wake-up interface identifier and the error correction distance to the first device, so that the first device determines whether a wake-up frame meets a preset condition according to the auxiliary wake-up interface identifier setting and the error correction distance to determine whether to wake up a main communication interface corresponding to the auxiliary wake-up interface, where the preset condition includes: and whether the distance calculated by the first device is smaller than or equal to the error correction distance or not is judged, and the calculated distance is the distance between the identifier of the auxiliary wakeup interface carried in the wakeup frame and the identifier of the auxiliary wakeup interface.

10. The method according to claim 9, wherein a distance between the identifier of the auxiliary wake-up interface of the first device and the identifier of the auxiliary wake-up interface of the other device associated with the second device is greater than 2 times the error correction distance, and the other device includes any device other than the first device associated with the second device.

11. The method according to claim 9, wherein the determining an assisted wake up interface identifier and an error correction distance for the assisted wake up interface of the first device associated with the second device comprises:

and obtaining the auxiliary awakening interface identification and the error correction distance of the first device associated with the second device from the server associated with the second device.

12. The method according to claim 9, wherein the determining an assisted wake up interface identifier and an error correction distance for the assisted wake up interface of the first device associated with the second device comprises:

and selecting an auxiliary awakening interface identifier from an auxiliary awakening interface identifier list stored in the second device as the identifier of the auxiliary awakening interface of the first device, and using the distance corresponding to the selected auxiliary awakening interface identifier as the error correction distance corresponding to the auxiliary awakening interface of the first device.

13. The method according to claim 9, wherein the determining an assisted wake up interface identifier and an error correction distance for the assisted wake up interface of the first device associated with the second device comprises:

when a first device is associated with a second device, generating an identifier of an auxiliary wake-up interface of the first device;

calculating the distance between the generated identifier of the auxiliary awakening interface and the identifiers of the auxiliary awakening interfaces of the plurality of other devices associated with the second device, and determining the minimum distance in the plurality of distances;

and determining an error correction distance corresponding to an auxiliary awakening interface of the first equipment according to the minimum distance.

14. The method according to claim 9, wherein the sending the identifier of the assisted wake up interface and the error correction distance to the first device comprises:

encapsulating the auxiliary awakening interface identifier and/or the error correction distance in any one of the following frames, and sending the frames to the first device; wherein any of the frames comprises: a public action frame, a probe response frame, an association response frame, or a reassociation response frame.

15. An identification configuration method of an auxiliary wake-up interface is applied to a first device, and comprises the following steps:

receiving an auxiliary awakening interface identifier and an error correction distance sent by second equipment; the auxiliary wake-up interface identifier is an identifier set for an auxiliary wake-up interface of the first device, and the error correction distance is used for indicating the error amount of the auxiliary wake-up interface identifier which can be corrected by the auxiliary wake-up interface in transmission;

setting the auxiliary awakening interface identifier of the first device as a received auxiliary awakening interface identifier, and setting the error correction distance corresponding to the auxiliary awakening interface of the first device as a received error correction distance, wherein the auxiliary awakening interface identifier and the error correction distance are used for the first device to judge whether an awakening frame meets a preset condition so as to determine whether to awaken a main communication interface corresponding to the auxiliary awakening interface, and the preset condition comprises: and whether the distance calculated by the first device is smaller than or equal to the error correction distance or not is judged, and the calculated distance is the distance between the identifier of the auxiliary wakeup interface carried in the wakeup frame and the identifier of the auxiliary wakeup interface.

16. A wireless device, comprising:

the target device comprises an auxiliary wake-up interface, an auxiliary wake-up interface and a target device, wherein the auxiliary wake-up interface is used for receiving a wake-up frame, the wake-up frame is used for waking up a main communication interface of a target device, the wake-up frame carries an identifier of the target auxiliary wake-up interface, and the target auxiliary wake-up interface is an auxiliary wake-up interface corresponding to the main communication interface of the target device to be woken up by the wake;

the processor is used for calculating the distance between the identifier of the auxiliary awakening interface carried by the awakening frame and the identifier preset for the auxiliary awakening interface of the wireless equipment, wherein the distance between the identifiers is the difference between the character sequences of the identifiers;

the auxiliary awakening interface is also used for determining whether to awaken a main communication interface corresponding to the auxiliary awakening interface of the wireless equipment or not according to whether the awakening frame meets a preset condition or not; wherein, whether the wakeup frame meets the preset condition comprises: whether a relationship between the distance calculated by the processor and a distance set in advance for the auxiliary wake-up interface of the wireless device satisfies a preset relationship.

17. The wireless device of claim 16, wherein whether a relationship between the calculated distance and a distance previously set for the secondary wake-up interface of the wireless device satisfies a preset relationship comprises: whether the calculated distance is less than or equal to a distance previously set for the secondary wake-up interface of the wireless device.

18. The wireless device according to claim 16 or 17, wherein the determining, by the auxiliary wake-up interface, whether to wake up the primary communication interface corresponding to the auxiliary wake-up interface of the wireless device according to whether the wake-up frame satisfies a preset condition includes:

the auxiliary wake-up interface is specifically configured to determine to wake up a main communication interface corresponding to the auxiliary wake-up interface of the wireless device when the wake-up frame meets a preset condition, where the wake-up frame meets the preset condition and includes: the calculated distance is less than or equal to a distance previously set for an auxiliary wake-up interface of the wireless device.

19. The wireless device of claim 18,

the auxiliary wake-up interface is further configured to check whether the wake-up frame is authentic, where the authenticity indicates whether the wake-up frame is sent by a second device associated with the wireless device; and if the wake-up frame is real, determining to wake up a main communication interface corresponding to the auxiliary wake-up interface of the wireless device through the auxiliary wake-up interface of the wireless device.

20. A wireless device, comprising:

a processor configured to determine, among primary communication interfaces associated with the wireless device, a primary communication interface to wake up; and generating a wake-up frame; the wake-up frame carries an identifier of a target receiver of the wake-up frame, the distance between the identifier and an identifier of an auxiliary wake-up interface corresponding to the main communication interface to be woken up meets a preset distance condition, and the distance between the identifiers is the difference between character sequences of the identifiers;

and the communication interface is used for sending the wake-up frame to an auxiliary wake-up interface of a main communication interface associated with the wireless equipment, so that the first equipment wakes up the main communication interface corresponding to the auxiliary wake-up interface according to the wake-up frame.

21. The wireless device of claim 20,

the processor is further configured to use an identifier configured for an auxiliary wakeup interface corresponding to the main communication interface to be wakened in advance as the target recipient identifier carried by the wakeup frame.

22. The wireless device of claim 20,

the processor is further configured to randomly generate an identifier or select an identifier from a generated identifier list, and if a distance between the randomly generated or selected identifier and an identifier configured for the auxiliary wakeup interface in advance meets a preset distance condition, use the randomly generated or selected identifier as the target receiver identifier carried by the wakeup frame.

23. The wireless device of claim 20,

the processor is further configured to determine an identifier and/or an error correction distance of an auxiliary wake-up interface corresponding to the main communication interface to be woken up; and packaging the identifier of the auxiliary awakening interface corresponding to the main communication interface to be awakened and/or the error correction distance in any one of the following frames, wherein any one of the frames comprises: a public action frame, a probe response frame, an association response frame, or a reassociation response frame;

the communication interface is further configured to send the frame to the first device.

24. A wireless device, comprising:

a communication interface, configured to send the auxiliary wake-up interface identifier and the error correction distance to the first device, so that the first device determines, according to the auxiliary wake-up interface identifier setting and the error correction distance, whether a wake-up frame meets a preset condition, to determine whether to wake up a main communication interface corresponding to the auxiliary wake-up interface, where the preset condition includes: and whether the distance calculated by the first device is smaller than or equal to the error correction distance or not is judged, and the calculated distance is the distance between the identifier of the auxiliary wakeup interface carried in the wakeup frame and the identifier of the auxiliary wakeup interface.

25. The wireless device of claim 24, wherein the distance between the identity of the secondary wake-up interface of the first device and the identity of the secondary wake-up interfaces of other devices associated with the wireless device, including any devices other than the first device associated with the wireless device, is greater than 2 times an error correction distance.

26. The wireless device of claim 24, wherein the processor determines an auxiliary wake-up interface identification and error correction distance for an auxiliary wake-up interface of a first device associated with the wireless device, comprising:

the processor is specifically configured to obtain, from a server associated with the wireless device, an auxiliary wake-up interface identifier and an error correction distance of a first device associated with the wireless device.

27. The wireless device of claim 24, wherein the processor determines an auxiliary wake-up interface identification and error correction distance for an auxiliary wake-up interface of a first device associated with the wireless device, comprising:

the processor is specifically configured to select an auxiliary wake-up interface identifier from an auxiliary wake-up interface identifier list stored in the wireless device, where the auxiliary wake-up interface identifier is used as an identifier of an auxiliary wake-up interface of the first device, and a distance corresponding to the selected auxiliary wake-up interface identifier is used as an error correction distance corresponding to the auxiliary wake-up interface of the first device.

28. The wireless device of claim 24, wherein the processor determines an auxiliary wake-up interface identification and error correction distance for an auxiliary wake-up interface of a first device associated with the wireless device, comprising:

the processor is specifically configured to generate an identifier of an auxiliary wake-up interface of a first device when the first device is associated with the wireless device; calculating the distance between the generated identifier of the auxiliary wake-up interface and identifiers of auxiliary wake-up interfaces of a plurality of other devices associated with the wireless device, and determining the minimum distance in the plurality of distances; and determining an error correction distance corresponding to an auxiliary wakeup interface of the first device according to the minimum distance.

29. The wireless device of claim 24,

the processor is further configured to encapsulate the auxiliary wake-up interface identifier and/or the error correction distance in any one of the following frames; wherein any of the frames comprises: a public action frame, a probe response frame, an association response frame, or a reassociation response frame;

the sending, by the communication interface, the auxiliary wake-up interface identifier and the error correction distance to the first device includes:

the communication interface is specifically configured to send the frame to the first device.

30. A wireless device, comprising:

the communication interface is used for receiving the auxiliary awakening interface identifier and the error correction distance; the auxiliary wake-up interface identifier is an identifier set for an auxiliary wake-up interface of the wireless device, and the error correction distance is used for indicating the error amount of the auxiliary wake-up interface identifier which can be corrected by the auxiliary wake-up interface in transmission;

a processor, configured to set an identifier of an auxiliary wake-up interface of the wireless device to a received identifier of the auxiliary wake-up interface, and set an error correction distance corresponding to the auxiliary wake-up interface of the wireless device to a received error correction distance, so that the wireless device determines, according to the identifier of the auxiliary wake-up interface and the error correction distance, whether a wake-up frame meets a preset condition, to determine whether to wake up a main communication interface corresponding to the auxiliary wake-up interface, where the preset condition includes: and whether the distance calculated by the wireless equipment is smaller than or equal to the error correction distance or not is judged, and the calculated distance is the distance between the identifier of the auxiliary awakening interface carried in the awakening frame and the identifier of the auxiliary awakening interface.