WO2018086311A1

WO2018086311A1 - Method and device for waking up communication interface, identifier configuration method for auxiliary wake-up interface, and device

Info

Publication number: WO2018086311A1
Application number: PCT/CN2017/081013
Authority: WO
Inventors: 程勇; 方平
Original assignee: 华为技术有限公司
Priority date: 2016-11-10
Filing date: 2017-04-19
Publication date: 2018-05-17
Also published as: CN109891946B; CN109891946A

Abstract

Provided in the present application is a method for waking up a communication interface. The method is applied on a first device, and a primary communication interface and an auxiliary wake-up interface corresponding to the primary communication interface are disposed on the first device. In the method, the auxiliary wake-up interface of the first device receives a wake-up frame transmitted by a second device, calculates a distance between an identifier of the auxiliary wake-up interface carried by the wake-up frame and a preset identifier of the auxiliary wake-up interface of the first device, and according to whether the wake-up frame meets the preset condition, determines whether the primary communication interface corresponding to the auxiliary wake-up interface of the first device is woken up via the auxiliary wake-up interface of the first device. The present application, by comparing a distance between two radio identifiers, enables a device to determine whether a wake-up object corresponding to the received wake-up frame is the device itself, reducing power consumption. Also provided in the present application are a method for waking up a communication interface applied on a second device, an identifier configuration method for an auxiliary wake-up interface, and a related wireless device.

Description

Wake-up method and device for communication interface, identification configuration method and device for auxiliary wake-up interface

The present application claims priority to Chinese Patent Application No. 201610990172.7, filed on Nov. 10, 2016, the entire disclosure of which is incorporated herein by reference. The present application also claims the priority of the Chinese patent application filed on April 6, 2017 by the Chinese Patent Office, the application number is 201710221944.5, and the invention name is "the wake-up method of the communication interface, the configuration method and equipment for the auxiliary wake-up interface". The entire contents are incorporated herein by reference.

Technical field

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

Background technique

The IEEE 802.11 standards organization plans to develop a Wi-Fi-based Internet of Things (IoT) standard that aims to promote Wi-Fi technology to the Internet of Things, including wearable electronic devices and digital medical devices. As the main power consumption module of IoT devices and wearable electronic devices, existing Wi-Fi modules consume too much power and cannot be directly applied to wearable electronic devices. 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 the capacity and capacity of portable batteries are limited, while wearable electronic devices are compatible with batteries. The life time requirement is relatively high. In order to apply Wi-Fi technology to the Internet of Things and wearable electronic devices, it is necessary to improve and reduce the power consumption of Wi-Fi communication technology.

In Wi-Fi communication technology, a device (STA) idle listening channel wastes a lot of power. In order to reduce the energy waste caused by the idle listening channel of the device, Wi-Fi technology introduces a dormancy mechanism, that is, the Wi-Fi module (Wi-Fi interface) of the device goes to sleep without data transmission and turns off the receiving transmitter. The traditional Wi-Fi sleep mechanism can reduce the power consumption of the Wi-Fi module. However, if one STA's Wi-Fi module is in a dormant state, the access point (AP) cannot send data to the STA, and the AP needs to wait until the STA's Wi-Fi module wakes up. This will increase the communication delay and will not enable on-demand real-time data transmission. In order to reduce the communication delay caused by the traditional 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. This reduces the sleep time ratio of the STA and increases the energy consumption of the STA.

In order to solve the above problems, the IEEE 802.11 standards organization recently established a new group to study ultra-low power Wake-up Radio/Receiver (WUR) technology and develop WUR-based standards, expecting to wake up the radio. The /receiver reduces the average power consumption of the Wi-Fi module on the device while enabling on-demand real-time data transmission.

Auxiliary Wake-up Radio/Receiver (WUR) is an ultra-low-power wireless interface added to wireless devices that coexists with the wireless device's primary communication module (eg, Wi-Fi module). When there is no message to receive or transmit, the device's main communication module (for example, Wi-Fi module) 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 wake-up device, for example, an AP) has a message that needs to be transmitted to the first wireless device When the device is awakened (for example, 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 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 true, the WUR of the first wireless device sends a wake-up signal to the first A Wi-Fi module of the wireless device to wake up the first wireless device master communication module (eg, an 802.11 module). After the wake-up signal is sent, the WUR module of the first wireless device can enter a deep sleep state.

Due to the extremely simple circuit design and signal processing method, the average power consumption of the WUR module is very low. For example, when using duty cycle (Duty-Cycling), the average power consumption of WUR is about 100μW, which is probably only Wi-Fi average power. It costs 0.1%. Compared with directly turning on the Wi-Fi module listening channel, using WUR can significantly reduce the average power consumption of wireless devices.

Summary of the invention

The present application provides a wake-up method for a communication interface to reduce power consumption of the auxiliary wake-up interface when waking up the main communication interface.

To achieve the above object, the technical solution provided by the present application is as follows:

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 the second device, where the wake-up frame is used to wake up a main communication interface of the target device, where the wake-up frame carries an identifier of the target auxiliary wake-up interface, and the target assists wake-up The 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 an identifier of the auxiliary wake-up interface carried by the wake-up frame and is auxiliary for the first device in advance Awakening a distance between the identifiers set by the interface; determining, by the first device, whether to wake up the auxiliary device of the first device by using the auxiliary wake-up interface of the first device according to whether the wake-up frame meets a preset condition Awakening the primary communication interface corresponding to the interface; wherein, whether the wake-up frame meets the preset condition comprises: calculating the distance calculated by the first device To advance the first wake-up auxiliary device interface settings relationship between the distance meets a predetermined relationship.

In a possible design, the first device calculates a distance between the auxiliary wake-up interface identifier carried by the wake-up frame and an identifier set in advance for the auxiliary wake-up interface of the first device, including: the first device Calculating a Hamming distance between the auxiliary wake-up interface identifier carried by the wake-up frame and an identifier previously set for the auxiliary wake-up interface of the first device.

In a possible design, whether the relationship between the distance calculated by the first device and the distance set in advance for the auxiliary wake-up interface of the first device satisfies a preset relationship, including: the first device Whether the ratio between the calculated distance and the distance previously set for the auxiliary wake-up interface of the first device satisfies a preset ratio relationship.

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

In a possible design, the first device determines whether to pass according to whether the wake-up frame meets a preset condition. The waking up the primary communication interface corresponding to the auxiliary wake-up interface of the first device, the first device, if the wake-up frame meets a preset condition, Determining, by the auxiliary wake-up interface of the first device, the main communication interface corresponding to the auxiliary wake-up interface of the first device, where the wake-up frame satisfies a preset condition, the: the calculated distance is less than Or equal to the distance previously set for the auxiliary wake-up interface of the first device.

In a possible design, the first device determines, according to whether the wake-up frame meets a preset condition, whether to wake up the auxiliary wake-up interface of the first device by using the auxiliary wake-up interface of the first device The primary communication interface further includes: the first device determines not to continue to receive the wake-up frame if the wake-up frame does not meet the preset condition, where the wake-up frame does not satisfy the preset The condition includes that the calculated distance is greater than a distance previously set for the auxiliary wake-up interface of the first device.

In a possible design, the method for waking up the communication interface further includes: verifying whether the wake-up frame is true; if the wake-up frame is true, whether the true representation indicates whether the wake-up frame is the first And sending, by the second device associated with the device, the primary communication interface corresponding to the auxiliary wake-up interface of the first device by using the auxiliary wake-up interface of the first device.

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

In a further aspect, the present application provides a method for waking up a communication interface, which is applied to a second device, the method comprising: determining, in a primary communication interface associated with the second device, a primary communication interface to be woken; generating a wake-up frame; The wake-up frame carries the identifier of the 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 awakened satisfies a preset distance condition; The auxiliary wake-up interface of the primary communication interface associated with the second device sends the wake-up frame.

In a possible design, the identifier of the wake-up frame is obtained by using the identifier configured in advance for the auxiliary wake-up interface corresponding to the main communication interface to be awakened as the target receiving carried by the wake-up frame. Identification.

In a possible design, the manner in which the identifier carried by the wake-up frame is obtained includes: randomly generating an identifier or selecting an identifier from the generated identifier list, if the randomly generated or selected identifier is in advance for the auxiliary The distance between the identifiers of the awake interface configuration meets a preset distance condition, and the randomly generated or selected identifier is used as the target receiver identifier carried by the wake-up frame.

In a possible design, before determining the primary communication interface to be awake in the primary communication interface associated with the second device, the method further includes: determining an identifier of the auxiliary wake-up interface corresponding to the primary communication interface to be awake And/or an error correction distance; encapsulating the identifier of the auxiliary wake-up interface corresponding to the main communication interface to be woken up and/or the error correction distance in any one of the following frames, and transmitting the identifier to the first device A frame; any one of the frames includes: a common action frame, a probe response frame, an association response frame, or a reassociation response frame.

In a further aspect, the present application provides an identifier configuration method for an auxiliary wake-up interface, which is applied to a second device, the method comprising: determining an auxiliary wake-up interface identifier for an auxiliary wake-up interface of a first device associated with the second device And an error correction distance; wherein the error correction distance is used to indicate that the auxiliary wakeup interface that can be corrected by the auxiliary wakeup interface identifies an error amount that occurs in the transmission; and the auxiliary wakeup interface identifier is sent to the first device and the Correction distance.

In one possible design, the 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, the other device Any device other than the first device associated with the second device is included.

In a possible design, the auxiliary wake-up interface of the first device associated with the second device determines the auxiliary wake-up interface identifier and the error correction distance, including: obtaining from a server associated with the second device Auxiliary wake-up interface identification and error correction distance of the first device associated with the second device.

In a possible design, the auxiliary wake-up interface of the first device associated with the second device determines the auxiliary wake-up interface identifier and the error correction distance, including: from the auxiliary wake-up interface identifier list stored by the second device And selecting an auxiliary wake-up interface identifier as an identifier of the auxiliary wake-up interface of the first device, and using 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 a possible design, the auxiliary wake-up interface of the first device associated with the second device determines the auxiliary wake-up interface identifier and the error correction distance, including: when the first device associates the second device, Generating an identifier of the auxiliary wake-up interface of the first device; calculating a distance between the identifier of the generated auxiliary wake-up interface and the identifier of the auxiliary wake-up interface of several other devices associated with the second device, and determining a minimum distance among the plurality of distances; Determining, according to the minimum distance, an error correction distance corresponding to the auxiliary wake-up interface of the first device.

In a possible design, the sending the auxiliary wakeup interface identifier and the error correction distance to the first device includes: packaging the auxiliary wakeup interface identifier and/or the error correction distance in any of the following In one frame, the frame is sent to the first device; any one of the frames includes: a common action frame, a probe response frame, an association response frame, or a re-association 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, where the method includes: receiving an auxiliary wake-up interface identifier and an error correction distance sent by the second device; wherein the auxiliary wake-up interface identifier is An identifier of the auxiliary wake-up interface setting of the first device, where the error correction distance is used to indicate that the auxiliary wake-up interface that can be corrected by the auxiliary wake-up interface identifies an error amount that occurs in the transmission; and the auxiliary assistance of the first device is awakened The interface identifier is set to the received auxiliary wakeup interface identifier, and the error correction distance corresponding to the auxiliary wakeup interface of the first device is set to the received error correction distance.

In still another aspect, the present application provides a wireless device having a function of implementing a wake-up method of a communication interface of the above-described application on a first device. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

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

In still another aspect, the present application provides a wireless device having a function of implementing an identification configuration method of an auxiliary wake-up interface of the above-mentioned application on a second device. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In still another aspect, the present application provides a wireless device having a function of implementing an identification configuration method of an auxiliary wake-up interface of the above-mentioned application on a first device. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings to be used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. For ordinary technicians, other drawings can be obtained based on these drawings without paying for creative labor.

1 is a schematic diagram of a Wi-Fi module for a second wireless device to wake up a first wireless device through a WUR in the prior art;

2 is a diagram showing an example of a format of a wake-up frame in the prior art;

FIG. 3 is a flowchart of a wakeup of a wireless device according to an embodiment of the present invention;

4 is a structural diagram of a wireless device according to an embodiment of the present invention;

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

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

FIG. 7 is a schematic diagram of 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 disclosure;

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 are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The terms used in the embodiments of the present invention are for the purpose of describing particular embodiments only and are not intended to limit the invention. The singular forms "a", "the" and "the" 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 "/" in this article generally indicates that the contextual object is 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 the embodiments of the present invention, these messages, requests, and terminals should not be limited to these terms. These terms are only used to distinguish messages, requests, and terminals from one another. For example, a first terminal may also be referred to as a second terminal without departing from the scope of the embodiments of the present invention. Similarly, the second terminal may also be referred to as a first terminal.

Depending on the context, the words "if" or "if" as used herein may be interpreted as "when" or "when" or "in response to determining" or "in response to detecting." Similarly, depending on the context, the phrase "if determined" or "if detected (conditions or events stated)" may be interpreted as "when determined" or "in response to determination" or "when detected (stated condition or event) "Time" or "in response to a test (condition or event stated)".

In order to facilitate the understanding of the present application, the key terms that may be used in the technical solution of the present application are first described, as shown in Table 1 below.

Table 1

As shown in Figure 1, in order to reduce the power consumption of the main communication module, the wireless device adds an ultra-low-power wireless interface (such as a WUR module), which can wake up the main communication in deep sleep state after receiving the wake-up frame. Module.

For wireless devices, the reception and decoding of wake-up frames is much simpler than standard Wi-Fi frames. The wake-up frame usually adopts a modulation method that is easy to receive at the receiving end, such as OOK (On-Off Keying) modulation. Taking OOK modulation as an example, the receiving end judges the information carried by the receiving signal by the presence or absence of energy, for example, the energy is “1” and the no energy is “0”. For standard Wi-Fi frames, BCC/LDPC and IFFT operations are required at the transmitting end, and corresponding signal processing operations such as FFT and BCC/LDPC decoding are required at the receiving end, and these operations consume a large amount of power.

In order to reduce the WUR energy consumption and reduce the probability of waking up frame errors, the wake-up frame should be as short as possible, and the content should be kept as little as possible.

See Figure 2, which shows one possible structure for a wake-up frame. As shown in FIG. 2, the wake-up frame includes at least a wake-up preamble and a receiver address (Receive Address, RA). Among them, Wake-up Preamble is used for symbol synchronization and AGC (Automatic Gain Control) setting. Receiving The Receive Address (RA) can be used to identify the target recipient of the wake-up frame. The Receive Address (RA) may include a Network ID and a WUR ID. The Receive Address may be a combination of a Network ID and a Wakeup ID (WUR ID), or the Receive Address may be a Wakeup Radio Identifier (WUR ID). The Wakeup Radio Identifier (WUR ID) is the identity of the target WUR and can be selected and assigned by the AP. The network ID may be used to identify information of a basic service set (BSS) and an AP to which the wake-up frame belongs, for example, a BSS color or a BSSID, or a compressed BSSID, or a compressed AP's MAC address. The Network ID may be part of the Wakeup Radio Identifier (WUR ID).

The wake-up frame may further include a legacy 802.11 preamble (Legacy 802.11 Preamble), and/or control information (Control Info), and/or a frame check sequence (FCS). The legacy 802.11 Preamble portion can be used for backward compatibility, so that the traditional Wi-Fi device can determine that the current frame is a Wi-Fi frame, thereby selecting a corresponding channel listening decision threshold and backoff time. Because the WUR does not need to receive the preamble of the traditional 802.11, for the sake of transmission efficiency, the wake-up frame can also be without the predecessor of the traditional 802.11. The Control Info may be used to indicate the frame type and other information of the wake-up frame, for example, a control command, which is optional. The frame check sequence (FCS) can be used to help the receiver verify the correctness and/or authenticity of the content of the received wake-up frame, that is, check whether the content of the received wake-up frame is in the process of transmission. An error occurs, and/or the authenticity of the wake-up frame is checked. The wakeup frame may also not include a frame check sequence for transmission efficiency considerations.

It can be seen from the above that 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, the wake-up frame may be in error during transmission. In order to improve the reliability of the wake-up frame transmission, the following two types of wake-up frame transmission methods are mainly used in the prior art.

One is to use Direct Sequence Spread Spectrum (DSSS) technology, however, this technique 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 wake-up. The data rate of the frame, therefore, may significantly increase the power consumption of the wake-up radio WUR to receive and process the wake-up frame.

Second, the use of channel coding techniques, such as binary convolutional codes (BCC), although this method can correct bit errors that occur during transmission of wake-up frames, but channel coding requires wake-up radio WURs when receiving wake-up frames. The channel decoding operation is performed, and therefore, the power consumption of the wake-up radio WUR to receive and process the wake-up frame is also significantly increased.

In summary, the wake-up frame will have a bit error during transmission, especially if the wake-up radio identification (WUR ID) part has an error during transmission, which may cause a false wake-up of other devices or wake up the target device. Conventional use of channel coding and transmission using direct sequence spread spectrum can significantly increase the power consumption of the wake-up radio WUR. This application mainly solves how to correct the bit error of the WUR ID during transmission without significantly increasing the power consumption of the WUR.

In the present application, the AP obtains the wake-up radio identity (WUR ID) of one of its associated STAs and determines the distance parameter r. The distance parameter r may refer to the number of bit errors that occur in the transmission process of the wake-up radio identifier that can be corrected by the receiving end in the solution provided by the embodiment of the present invention, and the distance parameter r may be used to help the STA determine the received value. Whether the target recipient of the incoming wake-up frame is the STA. Sending, by the AP, the wake-up radio identifier and the distance parameter The number r is given to the STA. a target first radio interface identifier carried in the wake-up frame sent by the AP to the STA (for indicating a target receiver of the wake-up frame), and the target first radio interface identifier and the wake-up radio identifier of the STA The distance is less than or equal to the distance parameter r. When the STA is receiving a wake-up frame (WUP), if the distance between the target wake-up radio identifier carried in the wake-up frame and the wake-up radio identifier of the STA is less than or equal to the distance parameter r, the STA determines that the The target recipient of the wake-up frame is the STA. It can be seen that, by comparing the distance between the two radio identifiers, the STA can determine whether the wake-up object corresponding to the received wake-up frame is itself, and the power consumption is small.

In order to prevent the wake-up radio identifier of one STA in the same basic service set (BSS) from being erroneous during transmission, it becomes the wake-up radio identifier of another STA, thereby affecting the correctness of the error correction operation of the wake-up radio identifier by the receiving end. The AP needs to ensure that the distance between the wake-up radio identifiers of any two different STAs in the same basic service set (BSS) is greater than or equal to (2r+1).

Specifically, FIG. 3 shows a flow of a wireless device wake-up method provided by the present application. As shown in FIG. 3, the process specifically includes the following steps S301-305.

S301: The AP obtains a wake-up radio identifier (WUR ID) of the STA and a distance parameter r.

Wherein, in a specific example, the AP may obtain the wake-up radio identifier (WUR ID) and the distance parameter r of the STA from a server, where the server may be a Wi-Fi access controller (Wi-Fi Access) Controller). In another specific example, the AP determines the number of STAs that the AP is most likely to associate with. Determining, by the AP, a wake-up radio identifier list (WUR ID List) from the stored one or more wake-up radio identifier lists according to the number of STAs that the AP is most likely to associate; the AP may select the wake-up radio from the Selecting a Wakeup Radio Identifier (WUR ID) as the Wakeup Radio Identifier (WUR ID) of the STA in the WUR ID List; the AP may determine the distance parameter r according to the selected Wakeup Radio Identifier (WUR ID) . In yet another specific example, the AP may generate a Wakeup Radio Identifier (WUR ID) as the Wakeup Radio Identifier (WUR ID) of the STA, and determine a distance parameter r based on the generated Wakeup Radio Identifier. Here, for convenience of explanation, 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 the target recipient of the received wake-up frame. In addition, the AP needs to ensure that the distance between the wake-up radio identifier of the STA and the wake-up radio identifier of other STAs in the same basic service set (BSS) is greater than or equal to (2r+1).

S302: The AP sends the wake-up radio identifier (WUR ID) and the distance parameter r to the STA.

The wake-up radio identifier (WUR ID) and the distance parameter r may be sent together or separately.

S303: The STA receives the wake-up radio identifier and the distance parameter r, and sets its own wake-up radio identifier and the distance parameter r to the received wake-up 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 comparison in step S305.

S304: The AP generates and sends a wake-up frame to the STA.

The wake-up frame carries the target wake-up radio identifier, and the target wake-up radio identifier needs to meet the condition that the distance from the wake-up 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 the target assisted wake-up interface. The device that wakes up the frame to wake up may be referred to as a target device, and the wake-up frame is used to wake up the primary communication interface of the target device. The target device may be the STA, It may also be other STAs connected to the AP.

The target assisted wakeup interface identifier may include a combination of any one or more of a WUR ID, a WUR address, and a network identifier. The network identifier may include a BSS color (a basic service set color, or a basic server identifier), or a BSSID, or a compressed BSSID, or a compressed AP's MAC address.

S305: When the STA receives a wake-up frame (WUP), the STA calculates a distance between the target wake-up radio identifier carried in the received wake-up frame and the wake-up radio identifier of the STA, and compares the calculated distance with the distance parameter r. The relationship, and according to the results of the calculation, the corresponding processing action is performed.

Specifically, if the calculated distance is less than or equal to the distance parameter r, the STA determines that the target receiver of the wake-up frame is the STA, and the STA continues to receive and process the wake-up frame; The calculated distance is greater than the distance parameter r, and the STA determines that the target recipient 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 relationship of the magnitudes of the two. Specifically, the magnitude relationship between the two may be determined using a difference value or may be determined using a ratio relationship. When the ratio relationship is determined, the ratio threshold is set to 1, for example, if the ratio of the calculated distance to the distance parameter r is less than or equal to the preset ratio threshold 1, it indicates that the calculated distance is less than or equal to the distance parameter r, and conversely, if calculated If the ratio of the distance to the distance parameter r is greater than the preset ratio threshold 1, it means that the calculated distance is greater than the distance parameter r.

It should be noted that the calculated distance may be a Hamming distance, that is, the target first wireless interface identifier in the wake-up frame is different from the first wireless interface identifier of the first wireless device. The number of bits. Using Hamming distance to compare two values simplifies the calculation. Alternatively, the distance may also be an Euclidean Distance, for example, the target first wireless interface identifier and the first wireless interface identifier of the first wireless device may be treated as two vectors to calculate between them. Euclidean distance. Alternatively, the distance may be other mathematically defined distances such as Minkowski Distance. Of course, the present application is not limited to the above three distance calculation methods, and may be any other mathematical calculation method for calculating the difference between two character sequences.

The technical solutions of the present application are described in detail below. First, the application scenario of the present application is briefly described. The present application can be applied to, but not limited to, Wi-Fi based Internet of Things (IoT) and wearable Wi-Fi networks. The wearable Wi-Fi network refers to a mobile phone as a Wi-Fi network composed of a virtual access point (SoftAP, also referred to as a Mobile AP) and an associated wearable device. The devices (STA) in the above network are powered by small-capacity batteries, and the devices have low power consumption and long battery life requirements.

Referring to Figure 4, a block diagram of a wireless device provided by the present application is shown. The wireless device can be a second wireless device (or a second device) such as an AP, or can be a first wireless device (or 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 the first transceiver of the wireless device 100 and is a specific implementation of the 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 (eg, a WUR module) Can be used to receive wake-up frames (WUPs) sent by other wireless devices and/or to send wake-up frames to other wireless devices. And after receiving the wake-up frame, send a wake-up signal to the sub-module 102, that is, the second transceiver (the second wireless interface), to wake up the sub-module 102 (the second wireless interface).

The sub-module 102 corresponds to a second transceiver of the wireless device 100, ie a second wireless interface (which may be referred to as a primary communication interface), which may be provided by a primary communication module (eg, an 802.11 module), and may be used to transmit wake-up frames and transmit sums. Receive other messages (for example, Wi-Fi frames).

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

The sub-module 105 corresponds to the antenna, and the first transceiver 101 and the second transceiver 102 can share the same antenna sub-module 105, which can reduce the hardware cost of the device and is simple to implement. Of course, the first transceiver 101 and the second transceiver 102 can also correspond to different antennas, especially when the two work in different frequency bands.

In an actual product, the wireless device 100 may be implemented by a system on a chip (SoC) or by an integrated circuit or by two hardware modules. The wireless device 100 can perform the wireless device wake-up method provided by the present application by using 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 refer to the same, and are all wireless interfaces provided by the 802.11 module; the Wi-Fi module The same as the 802.11 module; the WUR interface is the wireless interface provided by the WUR module; the WUR module and the auxiliary wake-up module refer to the same; the wake-up radio and the wake-up receiver refer to the same.

The application scenario of the present application and the specific structure of the device used are described. The following describes the technical solutions of the present application by using two specific embodiments.

Embodiment 1

The structure of the wake-up frame (WUP) in this embodiment is as shown in FIG. 2. The wake-up frame (WUP) includes at least a wake-up preamble and a receiver address (Receive Address, RA). The Receive Address may include a Network ID and a Wakeup ID (WUR ID); or the Receive Address may be a Network ID and a Wakeup Radio Identity ( A combination of WUR IDs; or, the Receive Address may be a Wakeup Radio Identifier (WUR ID). The Network ID may be part of the Wakeup Radio Identifier (WUR ID). The Receive Address or the Wakeup Radio Identifier (WUR ID) may be used to identify a target recipient of the wake-up frame. The wake-up frame (WUP) may further include a legacy 802.11 preamble, and/or control information, and/or a frame check sequence (FCS), and/or authentication information (MIC).

In this embodiment, in the process of mainly waking up the STA, the STA may correct the maximum r bit errors that occur during the transmission of the wake-up radio identifier by waking up the special structure of the 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 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 identification of the target STA.

The AP assigns a Wakeup Radio Identifier (WUR ID) to the STA's Wake-up Radio (WUR) and determines the distance parameter r, and the AP wakes up the STA as shown in steps A1 to A5 below.

Step A1: The AP obtains the wake-up radio identifier (WUR ID) of the STA and the distance parameter r.

In one example, the AP may obtain the Wakeup Radio Identifier (WUR ID) and the distance parameter r of the STA from one server; the server may be a Wi-Fi Access Controller.

In another example, the AP obtains a Wakeup Radio Identifier (WUR ID) and a distance parameter r of one STA from one or more WUR ID Lists stored locally. Specifically, this example can be implemented by the following steps A111 to A114.

Step A111: The AP determines the number of STAs that may be associated most. The AP may estimate the number of STAs that the AP may be associated with according to a specific application scenario. For example, in a wearable Wi-Fi network, a smart phone functions as a SoftAP, and the smart phone may estimate the number of STAs that the smartphone may be associated with at most. For example, up to 100 STAs.

Step A112: The AP selects a WUR ID List from the stored one or more WUR ID Lists according to the determined maximum number of possible associated STAs. It can be understood that the number of Wakeup IDs (WUR IDs) listed in the selected WUR ID List is greater than or equal to the number of STAs that the AP determines to be the most likely to be associated.

Step A113: The AP selects a wake-up radio identifier from the selected WUR ID List as the wake-up radio identifier (WUR ID) of the STA.

Step A114: The AP determines the distance parameter r according to the selected WUR ID List and the selected Wakeup Radio Identifier (WUR ID). The distance between any two different wake-up radio identifiers (WUR IDs) in the selected WUR ID List is greater than or equal to (2r+1). Any one of the selected wake-up radio identifiers (WUR IDs) has a corresponding distance parameter r. It should be noted that, in this implementation manner, multiple wake-up radio identifier lists are pre-stored, a wake-up radio identifier list is selected from multiple wake-up radio identifier lists, and a wake-up radio is selected from the selected wake-up radio identifier list. The identity is the wake-up radio identity that needs to be generated. of course,

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

In yet another example, the AP generates a wake-up radio identifier (WUR ID) and calculates a distance parameter r. The specific implementation manner can be implemented by the following steps A121 to A125.

Step A121: The AP generates a wake-up radio identifier (WUR ID), for example, randomly generates a bit sequence of length N, or generates a bit sequence of length N according to a specific algorithm, for example, a hash algorithm or an encryption algorithm.

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

Step A123: determining a minimum distance among the plurality of distances, recording the generated wake-up radio identifier and the minimum distance.

Step A124: The AP repeats the above steps A121 to A123 for a total of K times, K≥1, for example, K=10 times.

Step A125: The AP selects the best one of the K wake-up radio identifiers generated K times as the wake-up radio identifier of the STA. Here, "optimal" means that the minimum distance of the wake-up radio identifier from the wake-up radio identifiers of other already associated STAs is the largest among the K minimum distances corresponding to the K wake-up radio identifiers. 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 shall be denoted as r. The AP determines the distance parameter r based on the maximum minimum distance d.

It should be noted that the distance parameter r is the number of bit errors that the wake-up radio identifier can correct at the receiving end when the receiving end receives a wake-up frame, and the number of bit errors that occur during the transmission may be It is embodied as: the number of different bits between the wake-up radio identifier in the wake-up frame received by the receiving end and the wake-up radio identifier of the receiving end itself.

However, in order to prevent the wake-up radio identifier of one STA in the same basic service set (BSS) from being erroneous during transmission, it becomes a wake-up radio identifier of another STA, thereby affecting the error correction operation of the receiving end for the wake-up radio identifier. Correctly, the AP needs to ensure that the distance between the wake-up radio identifiers of any two different STAs within the same basic service set (BSS) is greater than or equal to (2r+1). For ease of understanding, the relationship between the above parameters will be described using FIG. See Figure 5, which shows a relationship between the wake-up wireless identity (WUR ID) and the 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. Among them, the distance parameters r1, r2 and r3 may also be different. The center of each circle in FIG. 5 represents the wake-up radio identifier of the STA itself, and each radius represents the number of different bits of the wake-up radio identifier that can be corrected by the STA after receiving the wake-up frame and its own wake-up radio identifier, and d1, d2, and d3 are two. The distance between the STA's wake-up radio identifiers. If any two circles intersect, the wake-up radio identifier of one STA may become in the two intersecting circles after an error occurs during transmission and becomes the wake-up radio identifier of another STA. Simultaneously wake up two STAs.

Therefore, d is greater than or equal to 2r+1, that is, r is less than or equal to (d-1)/2. In order to obtain the maximum distance parameter r, then: r = (d-1)/2. It can be understood that r is an integer, so 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 Identifier (WUR ID) and the distance parameter r to the STA through a Wi-Fi interface.

In an example, the AP may send the wakeup through a Public Action Frame or a Probe Response Frame or an Association Response Frame or a Reassociation Response Frame. A radio identifier (WUR ID) and/or the distance parameter r is given to the STA. The process of the AP sending the Wakeup Radio Identifier (WUR ID) and/or the distance parameter r to the STA through the Association Response Frame is as shown in FIG. 6 .

Specifically, the wake-up radio identifier (WUR ID) and/or the distance parameter r may be loaded as a new information element (IE) in the public action frame or probe response frame (Probe Response Frame). ) or an Association Response Frame (Reassociation Response Frame) or the like.

In addition, in order to improve the security of the transmission, the wake-up radio identifier (WUR ID) and/or the distance parameter r may be transmitted by encryption. In addition, the AP may send the wake-up radio identifier (WUR ID) to the STA together with the distance parameter r through one frame, and the AP may also use the wake-up radio identifier (WUR ID) through two frames. And the distance parameter r is sent to the STA respectively.

Step A3: The STA receives the Wakeup Radio Identifier (WUR ID) and the distance parameter r through a Wi-Fi interface.

The STA receives the Wakeup Radio Identifier (WUR ID) and the distance parameter r sent by the AP through a Wi-Fi interface. The STA sets its own wake-up radio identification (WUR ID) and distance parameter r to the received wake-up radio identification (WUR ID) and distance parameter r. That is, the STA sets its own wake-up radio identifier (WUR ID) to the received wake-up radio identifier (WUR ID), and the STA sets its own distance parameter r to the received distance parameter r.

It should be noted that the above steps A1 to A3 are processes in which the AP allocates a wake-up radio identifier (WUR ID) to a STA's wake-up radio (WUR) and determine a distance parameter r. The following steps A4 and A5 are that the AP sends a wake-up frame to the wake-up radio. the process of. However, before sending the wake-up frame to the STA, it does not necessarily include the process of allocating the wake-up radio identifier and determining the distance parameter r to the STA, and only needs to ensure that the STA is assigned the wake-up radio identifier and the distance is determined before the wake-up frame is sent. The parameter r can be.

Step A4: The AP generates and sends a wake-up frame to the STA.

When the AP generates a wake-up frame sent to the STA, the distance between the target wake-up radio identifier (WUR ID) filled in the wake-up frame and the wake-up radio identifier (WUR ID) of the STA is zero, that is, The target wake-up radio identifier (WUR ID) filled in by the AP in the wake-up frame is the wake-up radio identifier (WUR ID) of the STA. The AP sends the wake-up frame to the STA.

Step A5: The STA receives the wake-up frame through a WUR interface. When the STA receives a wake-up frame (WUP), the STA calculates a distance between the target wake-up radio identifier carried in the received wake-up frame and the wake-up radio identifier of the STA, which may be used for convenience of description. The calculated distance is called the 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 received by the STA, as described in step 3 above. The calculation distance may be used to count the number of different bits of the target wake-up radio identifier carried in the received wake-up frame and the corresponding bit position of the wake-up 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 recipient of the received wake-up frame is itself, so that the STA continues to receive and process the wake-up frame, and at least according to the content of the wake-up frame Wake up the main communication module of the STA; 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, so that the STA stops receiving and processing the wake-up frame, and does not wake up Main communication module (such as Wi-Fi module).

The STA waking up the main communication module (such as a Wi-Fi module) of the STA according to the content of the wake-up frame, including but not limited to the following three manners.

In a first mode, the STA may wake up the STA's main communication module (such as a Wi-Fi module) according to the STA being the target receiver of the wake-up frame.

In a second manner, the STA may obtain a frame check sequence (FCS) carried in the wake-up frame, generate a frame check sequence of the wake-up frame, and determine the obtained frame check sequence and the generated frame check. Whether the sequence is the same to determine whether the wake-up frame is erroneous during transmission; if there is no error, the STA wakes up the STA's main communication module (such as a Wi-Fi module); if an error occurs, the STA stops receiving And processing the wake-up frame without waking up the main communication module (such as a Wi-Fi module).

In a third mode, the STA may determine, according to the authentication information (MIC) carried in the wake-up frame, whether the wake-up frame is true, that is, whether the wake-up frame is sent by an AP associated with the STA; if true, the STA The STA wakes up the STA's main communication module (such as a Wi-Fi module); if not, the STA stops receiving and processing the wake-up frame without waking up the main communication module (such as a Wi-Fi module).

It should be noted that the foregoing second mode and the third mode are for verifying whether the wake-up frame is legal before waking up the main communication module. The second way is to check whether the wake-up frame is in error during transmission. The third way is to check whether the AP that sends the wake-up frame is the AP associated with the STA.

As can be seen from the above technical solution, in the first embodiment of the present invention, the wake-up radio identifier (WUR ID) of the wake-up radio of the STA is allocated by the AP, and the STA can be enabled to correct the maximum r bit errors that occur when the wake-up radio identifier is transmitted. Compared with the prior art, the use of channel coding for error correction and the use of direct sequence spread spectrum to improve the wake-up frame transmission, the error correction method provided by this embodiment, the power consumption of the WUR is low.

Embodiment 2

The wake-up frame (WUP) structure involved in the second embodiment of the present invention is as shown in FIG. 2. The wake-up frame (WUP) includes at least a wake-up preamble and a receive address. The receive address may include a network ID and a wake-up radio identifier (WUR ID); or the receive address may be a network ID and a wake-up radio identifier (WUR ID) A combination of; or the Receive Address may be a Wakeup Radio Identifier (WUR ID). The Network ID may be part of the Wakeup Radio Identifier (WUR ID). The Receive Address or the Wakeup Radio Identifier (WUR ID) is used to identify a target recipient of the wake-up frame. The wake-up frame (WUP) may further include a legacy 802.11 preamble, and/or control information, and/or a frame check sequence (FCS), and/or authentication information (MIC).

It should be noted that, in the second embodiment of the present invention, in the second embodiment of the present invention, the main purpose is to prevent the attacker from intercepting the target wake-up radio identifier in the wake-up frame, and the target wake-up radio filled in the wake-up frame sent by the AP to the STA. The identifier (WUR ID) 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 (ie, the STA that wants to wake up) is less than or equal to the distance parameter r, and the AP is at The target wake-up radio identifier (WUR ID) filled in the wake-up frame sent to the STA may be different from the wake-up radio identifier of the target STA. The second embodiment of the present invention is applicable to a scenario in which the wake-up frame error probability is relatively small.

The AP assigns a Wakeup Radio Identifier (WUR ID) to the STA's Wake-up Radio (WUR) and determines the distance parameter r, and the AP wakes up the STA as shown in the following steps B1 to B5.

Step B1: The AP obtains the wake-up radio identifier (WUR ID) of the STA and the distance parameter r.

In one example, the AP may obtain the Wakeup Radio Identifier (WUR ID) of the STA from a server. And a distance parameter r; the server may be a Wi-Fi Access Controller. In another example, the AP obtains a Wakeup Radio Identifier (WUR ID) and a distance parameter r of one STA from one or more WUR ID Lists stored locally. For the specific implementation, refer to the foregoing steps A111 to A114. In yet another example, the AP generates a wake-up radio identifier (WUR ID) and calculates a distance parameter r. The specific implementation manner can be implemented by the above steps A121 to A125.

Step B2: The AP sends the Wakeup Radio Identifier (WUR ID) and the distance parameter r to the STA through a Wi-Fi interface.

Step B3: The STA receives the Wakeup Radio Identifier (WUR ID) and the distance parameter r through a Wi-Fi interface.

It should be noted that the description of the above steps B1 to B3 can be referred to the description of steps A1 to A3 of Embodiment 1, and details are not described herein.

Step B4: The AP generates and sends a wake-up frame to the STA.

Different from the first embodiment, in this embodiment, when the AP generates a wake-up frame sent to the STA, the target wake-up radio identifier (WUR ID), which is filled in the wake-up frame sent by the AP to the STA, is the target receiver. The identifier may be randomly generated or randomly selected, that is, the target wake-up radio identifier (WUR ID) filled in by the AP in the wake-up frame may be different from the wake-up radio identifier (WUR ID) of the target STA (the STA that wants to wake up) However, as shown in FIG. 7, the distance between the target wake-up radio identifier (WUR ID) filled in by the AP in the wake-up frame sent to the STA and the wake-up radio identifier of the target STA is to satisfy a preset distance condition, such as less than or equal to The distance parameter r of the target STA itself.

Step B5: The STA receives the wake-up frame through a WUR interface. When the STA receives a wake-up frame (WUP), the STA calculates a distance between the target wake-up radio identifier carried in the received wake-up frame and the wake-up 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 recipient of the received wake-up frame is itself, so that the STA continues to receive and process the wake-up frame, and wakes up the STA's master according to the content of the wake-up frame. a communication module (such as a Wi-Fi module); 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, so that the STA stops receiving and processing the wake-up frame, Wake up the main communication module (such as Wi-Fi module).

The second embodiment of the present invention is different from the first embodiment of the present invention. The difference between the two embodiments is that the target wake-up radio identifier (WUR ID) is filled in the wake-up frame sent by the AP to the STA in the first embodiment of the present invention. The distance from the wake-up radio identifier of the STA is zero, that is, the target wake-up radio identifier (WUR ID) filled in by the AP in the wake-up frame sent to the STA 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 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 AP sends to the AP. The target wake-up radio identifier (WUR ID) filled in the STA's wake-up frame is randomly selected and may not be the wake-up radio identifier of the STA.

In the embodiment of the present invention, the target wake-up radio identifier (WUR ID) filled in the wake-up frame sent by the AP to the STA may be randomly selected, and the target wake-up radio identifier (WUR ID) filled in by the AP in the wake-up frame sent to the STA The distance from the STA's wake-up radio identifier is less than or equal to the distance parameter r, which not only reduces wake-up The power consumption used by the STA can also increase the difficulty of the STA's wake-up radio identifier being intercepted by the attacker, thereby improving the security of the system.

In the present application, determining, by the second wireless device (such as an AP), the identifier of the first wireless interface of the first wireless device (such as a STA) and the distance parameter r, may enable the first wireless device to correct the first wireless interface. Identifies up to r bit errors that occur during transmission. The proposed scheme is a low complexity error correction scheme without introducing additional communication overhead. In addition, the target wake-up radio identifier (WUR ID) filled in the wake-up frame sent by the AP to the STA may be randomly generated or randomly selected, and the target wake-up radio identifier (WUR ID) filled in by the AP in the wake-up frame sent to the STA. The distance from the wake-up radio identifier of the STA is less than or equal to the distance parameter r, which increases the difficulty of the wake-up radio identifier of the STA being intercepted by the attacker, and may increase the security of the system.

FIG. 8 is a schematic structural diagram of a first wireless device provided by the present application, including: a bus, an auxiliary 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 connected to each other through a bus. among them:

The bus can include a path for communicating information between various components of the first wireless device.

The auxiliary wake-up interface 801 is configured to receive a wake-up frame, where the wake-up frame is used to wake up a primary communication interface of the target device, where the wake-up frame carries an identifier of the target auxiliary wake-up interface, where the target auxiliary wake-up interface is required for the wake-up frame An identifier of the auxiliary wake-up interface corresponding to the main communication interface of the target device that is awake;

The processor 802 is configured to calculate a distance between an identifier of the auxiliary wake-up interface carried by the wake-up frame and an identifier set in advance 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 the primary communication interface corresponding to the auxiliary wake-up interface of the wireless device according to whether the wake-up frame meets a preset condition, where the wake-up frame meets a preset condition, Whether the relationship between the distance calculated by the processor and the distance previously set for the auxiliary wake-up interface of the wireless device satisfies a preset relationship.

The program for executing the technical solution of the present application is stored in the memory 803, and an operating system and other applications can also be saved.

In one example, whether the relationship between the calculated distance and the distance set in advance for the auxiliary wake-up interface of the wireless device satisfies a preset relationship, including: the calculated distance and the foregoing Whether the ratio between the distances set by the auxiliary wake-up interface of the wireless device satisfies a preset ratio relationship.

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

In an example, the auxiliary wake-up interface 801 determines 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 meets a preset condition, including:

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

In an example, the auxiliary wake-up interface 801 determines 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 meets a preset condition, and further includes:

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

In an 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 true, wake up the primary communication interface corresponding to the auxiliary wake-up interface of the wireless device.

FIG. 9 is a schematic structural diagram of a second wireless device provided by the present application, 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 through a bus. among them:

The bus can include a path for communicating information between various components of the second wireless device.

The processor 901 is configured to determine, in a primary communication interface associated with the wireless device, a primary communication interface to be woken; and generate a wake-up frame; wherein the wake-up frame carries an identifier of a target recipient of the wake-up frame, And determining, by the identifier, a distance between the identifier of the auxiliary wake-up interface corresponding to the main communication interface to be woken to meet a preset distance condition;

The communication interface 902 is configured to send the wake-up frame to an auxiliary wake-up interface of a primary communication interface associated with the wireless device.

The program for executing the technical solution of the present application is stored in the memory 903, and an operating system and other applications can also be saved.

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

In an example, the processor 901 is further configured to randomly generate an identifier or select an identifier from the generated identifier list, between the randomly generated or selected identifier and the identifier configured in advance for the auxiliary wakeup interface. If the distance meets the preset distance condition, the randomly generated or selected identifier is used as the target receiver identifier carried by the wake-up frame.

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

a processor, configured to determine an auxiliary wakeup interface identifier and an error correction distance for an auxiliary wakeup interface of the first device associated with the wireless device; wherein the error correction distance is used to indicate an auxiliary wakeup that the auxiliary wakeup interface can correct The interface identifies the amount of errors that occur during transmission;

And a communication interface, configured to send the auxiliary wakeup interface identifier and the error correction distance to the first device.

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

In one example, the processor is configured to associate with the wireless device when performing the step of determining an auxiliary wake-up interface identification and error correction distance for the auxiliary wake-up interface of the first device associated with the wireless device Server, Obtaining an auxiliary wakeup interface identification and error correction distance of the first device associated with the wireless device.

In one example, the processor, when performing the step of determining an auxiliary wake-up interface identification and error correction distance for the auxiliary wake-up interface of the first device associated with the wireless device, specifically for assisting wake-up from wireless device storage In the interface identifier list, an auxiliary wake-up interface identifier is selected as an identifier of the 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 corresponding to the auxiliary wake-up interface of the first device. distance.

In one example, the processor is configured to associate the first wake-up interface identification and the error correction distance with an auxiliary wake-up interface of the first device associated with the wireless device, specifically for associating the first device with the And generating, by the wireless device, an identifier of the auxiliary wake-up interface of the first device; calculating a distance between the identifier of the generated auxiliary wake-up interface and the identifier of the auxiliary wake-up interface of several other devices associated with the wireless device, and determining in a plurality of distances a minimum distance; and determining an error correction distance corresponding to the auxiliary wake-up interface of the first device according to the minimum distance.

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

a communication interface, configured to receive an auxiliary wakeup interface identifier and an error correction distance; wherein the auxiliary wakeup interface identifier is an identifier set for the auxiliary wakeup interface of the wireless device, and the error correction distance is used to indicate that the auxiliary wakeup interface can be corrected The auxiliary wake-up interface identifies the amount of errors that occur in the transmission. The communication interface may be an auxiliary wake-up interface.

And a processor, configured to set the auxiliary wake-up interface identifier of the wireless device to the received auxiliary wake-up interface identifier, and set an error correction distance corresponding to the auxiliary wake-up interface of the wireless device to the received error correction distance.

The related parts of the method embodiments of the present invention may be referred to each other; the apparatus provided in each device embodiment is used to perform the method provided by the corresponding method embodiment, so each device embodiment may refer to related methods in the related method embodiments. Partial understanding. The names of the messages/frames, modules, or units provided in the various embodiments of the present invention are merely examples, and other names may be used as long as the functions of the messages/frames, modules, or units are the same. A person skilled in the art can understand that all or part of the steps of implementing the above embodiments can be completed by a program to instruct related hardware, and the program can be stored in a readable storage medium of a device, when the program is executed. Including all or part of the above steps, the storage medium, such as: FLASH, EEPROM, and the like.

The specific embodiments described above further explain the objects, technical solutions and beneficial effects of the present invention. It should be understood that different embodiments may be combined, and the above is only the specific embodiment of the present invention. It is not intended to limit the scope of the invention, and any combination, modification, equivalent substitution, modification, etc., which are within the spirit and scope of the invention, are intended to be included within the scope of the invention.

Claims

A method for waking up 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 the second device, where the wake-up frame is used to wake up a primary communication interface of the target device, where the wake-up frame carries an identifier of the target auxiliary wake-up interface, the target The 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 a distance between an identifier of the auxiliary wake-up interface carried by the wake-up frame and an identifier set in advance for the auxiliary wake-up interface of the first device;

Determining, by the first device, whether the wake-up frame meets a preset condition, and whether the primary communication interface corresponding to the auxiliary wake-up interface of the first device is awake by the auxiliary wake-up interface of the first device; Whether the wake-up frame satisfies the preset condition includes whether a relationship between the distance calculated by the first device and a distance set in advance by the auxiliary wake-up interface of the first device satisfies a preset relationship.
The method for waking up a communication interface according to claim 1, wherein a relationship between a distance calculated by the first device and a distance set in advance for the auxiliary wake-up interface of the first device satisfies The relationship includes: whether the distance calculated by the first device is less than or equal to a distance set in advance for the auxiliary wake-up interface of the first device.
The awake method of the communication interface according to claim 1 or 2, wherein the first device determines whether to wake up by the auxiliary wakeup interface of the first device according to whether the wakeup frame satisfies a preset condition. The primary communication interface corresponding to the auxiliary wake-up interface of the first device includes:

Determining, by the first device, that the wake-up frame meets a preset condition, by using the auxiliary wake-up interface of the first device to wake up a primary communication interface corresponding to the auxiliary wake-up interface of the first device, where And the waking frame satisfies the preset condition that the calculated distance is less than or equal to a distance set in advance for the auxiliary wake-up interface of the first device.
The method for waking up a communication interface according to claim 3, further comprising:

Checking whether the wake-up frame is true, whether the true representation indicates whether the wake-up frame is sent by the second device associated with the first device;

And if the wake-up frame is true, determining to wake up the primary communication interface corresponding to the auxiliary wake-up interface of the first device by using the auxiliary wake-up interface of the first device.
A method for waking up a communication interface, which is characterized in that it is applied to a second device, and the method includes:

Determining, in a primary communication interface associated with the second device, a primary communication interface to be woken up;

Generating a wake-up frame; wherein the wake-up frame carries an identifier of a target receiver of the wake-up frame, and a distance between the identifier and an identifier of the auxiliary wake-up interface corresponding to the main communication interface to be woken up satisfies a preset distance condition;

The wake-up frame is transmitted to an auxiliary wake-up interface of a primary communication interface associated with the second device.
The awake method of the communication interface according to claim 5, wherein the obtaining manner of the identifier carried by the awake frame comprises:

The identifier configured in advance for the auxiliary wake-up interface corresponding to the main communication interface to be woken up is used as the target receiver identifier carried in the wake-up frame.
The awake method of the communication interface according to claim 5, wherein the obtaining manner of the identifier carried by the awake frame comprises:

Randomly generating an identifier or selecting an identifier from the generated identifier list, and if the distance between the randomly generated or selected identifier and the identifier configured in advance for the auxiliary wake-up interface satisfies a preset distance condition, the The randomly generated or selected identifier is used as the target recipient identifier carried by the wake-up frame.
The awake method of the communication interface according to claim 5, further comprising: before determining the main communication interface to be awake in the main communication interface associated with the second device, further comprising:

Determining an identifier and/or an error correction distance of the auxiliary wake-up interface corresponding to the main communication interface to be woken up;

Encapsulating the identifier of the auxiliary wake-up interface corresponding to the main communication interface to be awake and/or the error correction distance in any one of the following frames, and sending the frame to the first device; any one of the frames Including: public action frame, probe response frame, association response frame or reassociation response frame.
An identification configuration method for an auxiliary wake-up interface is characterized in that it 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 indicate that the auxiliary wake-up interface identifier that can be corrected by the auxiliary wake-up interface is transmitted The amount of error that occurs in ;

Sending the auxiliary wakeup interface identifier and the error correction distance to the first device.
The method for configuring an auxiliary wake-up interface according to claim 9, wherein a distance between an identifier of the auxiliary wake-up interface of the first device and an identifier of the auxiliary wake-up interface of another device associated with the second device is More than 2 times the error correction distance, the other device includes any device other than the first device associated with the second device.
The method for configuring an auxiliary wake-up interface according to claim 9, wherein the auxiliary wake-up interface of the first device associated with the second device determines the auxiliary wake-up interface identifier and the error correction distance, including:

And obtaining, by the server associated with the second device, an auxiliary wake-up interface identifier and an error correction distance of the first device associated with the second device.
The method for configuring an auxiliary wake-up interface according to claim 9, wherein the auxiliary wake-up interface of the first device associated with the second device determines the auxiliary wake-up interface identifier and the error correction distance, including:

Selecting, from the auxiliary wakeup interface identifier list stored by the second device, an auxiliary wakeup interface identifier as an identifier of the auxiliary wakeup interface of the first device, and using a distance corresponding to the selected auxiliary wakeup interface identifier as the first device The auxiliary wake-up interface corresponds to the error correction distance.
The method for configuring an auxiliary wake-up interface according to claim 9, wherein the auxiliary wake-up interface of the first device associated with the second device determines the auxiliary wake-up interface identifier and the error correction distance, including:

When the first device is associated with the second device, generating an identifier of the auxiliary wakeup interface of the first device;

Calculating a distance between the identifier of the generated auxiliary wake-up interface and the identifier of the auxiliary wake-up interface of several other devices associated with the second device, and determining a minimum distance among the plurality of distances;

Determining, according to the minimum distance, an error correction distance corresponding to the auxiliary wake-up interface of the first device.
The method for configuring an auxiliary wake-up interface according to claim 9, wherein the sending the auxiliary wake-up interface identifier and the error correction distance to the first device comprises:

Encapsulating the auxiliary wake-up interface identifier and/or the error correction distance in any one of the following frames, and sending the frame to the first device; where any one of the frames includes: a common action frame, a probe response frame, Associate response frames or re-association response frames.
An identification configuration method for an auxiliary wake-up interface is characterized in that it is applied to a first device, and the method includes:

Receiving an auxiliary wake-up interface identifier and an error correction distance sent by the second device, where the auxiliary wake-up interface identifier is an identifier set for the auxiliary wake-up interface of the first device, where the error correction distance is used to indicate that the auxiliary wake-up interface can be corrected The auxiliary wake-up interface identifies the amount of errors that occur during transmission;

And setting an auxiliary wake-up interface identifier of the first device to the received auxiliary wake-up interface identifier, and setting an error correction distance corresponding to the auxiliary wake-up interface of the first device to the received error correction distance.
A wireless device, comprising:

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

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

The auxiliary wake-up interface is further configured to determine 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 meets a preset condition, where the wake-up frame meets a preset condition, including: Whether the relationship between the distance calculated by the processor and the distance set in advance for the auxiliary wake-up interface of the wireless device satisfies a preset relationship.
The wireless device according to claim 16, wherein whether the relationship between the calculated distance and a distance set in advance for the auxiliary wake-up interface of the wireless device satisfies a preset relationship comprises: Whether the calculated distance is less than or equal to the distance previously set for the auxiliary wake-up interface of the wireless device.
The wireless device according to claim 16 or 17, wherein the auxiliary wake-up interface determines 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 meets a preset condition, including :

The auxiliary wake-up interface is specifically configured to: when the wake-up frame meets a preset condition, determine to wake up a primary communication interface corresponding to the auxiliary wake-up interface of the wireless device, where the wake-up frame meets a preset condition The method includes: the calculated distance is less than or equal to a distance previously set for the auxiliary wake-up interface of the wireless device.
The wireless device of claim 18, wherein

The auxiliary wake-up interface is further configured to check whether the wake-up frame is true, and whether the true representation indicates whether the wake-up frame is sent by the second device associated with the first device; Determining that the wake-up frame is true, determining to wake up the primary communication interface corresponding to the auxiliary wake-up interface of the first device by using the auxiliary wake-up interface of the first device.
A wireless device, comprising:

a processor, configured to determine, in a primary communication interface associated with the wireless device, a primary communication interface to be woken; and generate a wake-up frame; wherein the wake-up frame carries an identifier of a target recipient of the wake-up frame, Determining, by the identifier, a distance between the identifier of the auxiliary wake-up interface corresponding to the main communication interface to be woken up, satisfying a preset distance condition;

And a communication interface for transmitting the wake-up frame to an auxiliary wake-up interface of a primary communication interface associated with the wireless device.
The wireless device of claim 20, wherein

The processor is further configured to use an identifier configured in advance for the auxiliary wake-up interface corresponding to the main communication interface to be awakened as the target receiver identifier carried by the wake-up frame.
The wireless device of claim 20, wherein

The processor is further configured to randomly generate an identifier or select an identifier from the generated identifier list, and if the distance between the randomly generated or selected identifier and the identifier configured in advance for the auxiliary wakeup interface satisfies a preset The distance condition is used to use the randomly generated or selected identifier as the target recipient identifier carried by the wake-up frame.
The wireless device of claim 20, wherein

The processor is further configured to determine an identifier and/or an error correction distance of the auxiliary wake-up interface corresponding to the main communication interface to be woken; and an identifier of the auxiliary wake-up interface corresponding to the main communication interface to be woken up and/ Or the error correction distance is encapsulated in any one of the following frames, where any one of the frames includes: a common action frame, a probe response frame, an association response frame, or a re-association response frame;

The communication interface is further configured to send the frame to the first device.
A wireless device, comprising:

a processor, configured to determine an auxiliary wakeup interface identifier and an error correction distance for an auxiliary wakeup interface of the first device associated with the wireless device; wherein the error correction distance is used to indicate an auxiliary wakeup that the auxiliary wakeup interface can correct The interface identifies the amount of errors that occur during transmission;

And a communication interface, configured to send the auxiliary wakeup interface identifier and the error correction distance to the first device.
The wireless device according to claim 24, wherein the 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 wireless device is greater than 2 times Distance, the other device includes any device other than the first device associated with the wireless device.
The wireless device according to claim 24, wherein the processor is an auxiliary wake-up interface of the first device associated with the wireless device, and determines an auxiliary wake-up interface identifier and an error correction distance, including:

The processor is specifically configured to obtain, from a server associated with the wireless device, an auxiliary wakeup interface identifier and an error correction distance of the first device associated with the wireless device.
The wireless device according to claim 24, wherein the processor is an auxiliary wake-up interface of the first device associated with the wireless device, and determines an auxiliary wake-up interface identifier and an error correction distance, including:

The processor is specifically configured to: select an auxiliary wake-up interface identifier from the auxiliary wake-up interface identifier list stored by the wireless device, and use an identifier of the auxiliary wake-up interface of the first device, and corresponding to the selected auxiliary wake-up interface identifier. The distance is an error correction distance corresponding to the auxiliary wake-up interface of the first device.
The wireless device according to claim 24, wherein the processor is an auxiliary wake-up interface of the first device associated with the wireless device, and determines an auxiliary wake-up interface identifier and an error correction distance, including:

The processor is configured to: when the first device associates the wireless device, generate an identifier of the auxiliary wake-up interface of the first device; calculate an identifier of the generated auxiliary wake-up interface and assist with a plurality of other devices associated with the wireless device Wake up the distance between the identifiers of the interfaces and determine the minimum distance among several distances; and determine according to the minimum distance The error correction distance corresponding to the auxiliary wake-up interface of the first device.
The wireless device of claim 24, wherein

The processor is further configured to encapsulate the auxiliary wakeup interface identifier and/or the error correction distance in any one of the following frames: any one of the frames includes: a common action frame, a probe response frame, and an association response frame. Or re-associate the response frame;

Sending, by the communication interface, the auxiliary wakeup interface identifier and the error correction distance to the first device, including:

The communication interface is specifically configured to send the frame to the first device.
A wireless device, comprising:

a communication interface, configured to receive an auxiliary wakeup interface identifier and an error correction distance; wherein the auxiliary wakeup interface identifier is an identifier set for the auxiliary wakeup interface of the wireless device, and the error correction distance is used to indicate that the auxiliary wakeup interface can be corrected The auxiliary wake-up interface identifies the amount of errors that occur during transmission;

And a processor, configured to set the auxiliary wake-up interface identifier of the wireless device to the received auxiliary wake-up interface identifier, and set an error correction distance corresponding to the auxiliary wake-up interface of the wireless device to the received error correction distance.