WO2023065887A1 - Network access method and device - Google Patents

Abstract

The present application provides a network access method and device, wherein the method can be applied to distributed networking. In the method, when a first electronic device wants to join in current networking, the first electronic device may broadcast a device authentication request message in a broadcasting manner, and if a device in the current networking receives the broadcast message, a feedback message can be sent to the first electronic device, such that the first electronic device can complete device authentication with a network in the current networking, and thus joins in the current networking. Device authentication is performed in a broadcast manner, such that connection resources can be saved, and the condition of unsuccessful connection caused by excessive device connection is avoided. Moreover, power consumption caused by broadcasting is less, and power consumption can be reduced.

Description

A network access method and device

Cross References to Related Applications

This application claims the priority of the Chinese patent application with the application number 202111232794.0 and the application title "A Network Access Method and Device" submitted to the China Patent Office on October 22, 2021, the entire contents of which are incorporated in this application by reference.

technical field

The present application relates to the technical field of terminals, and in particular to a network access method and device.

Background technique

With the construction of intelligent ecology, distributed networking among electronic devices is required. Due to the limited short-distance communication capability of each electronic device, it is necessary to realize multi-hop discovery and heterogeneous networking through mixed capabilities such as Ethernet (ETH), wireless fidelity (Wi-Fi), and Bluetooth (BT) .

When different electronic devices are scanned and discovered, they can be connected through BT, ETH, etc., and then exchange authentication information to establish a trust relationship between devices to complete device authentication. That is to say, when an electronic device joins the network, it must pass the connection and then be authenticated to join the network. However, no matter which connection method is used, the number of devices that can be connected between electronic devices is relatively limited. Moreover, when the number of connected devices When the number increases, the power consumption of the electronic device will increase, which will significantly shorten the use time of the electronic device and cause poor user experience.

Contents of the invention

The present application provides a network access method and equipment, which are used to save connection resources and avoid connection failures caused by too many equipment connections.

In a first aspect, the present application provides a network access method, which includes: a first electronic device broadcasts a device authentication request message, and the device authentication request message is used to perform device authentication with at least one device in the first group network; then, the first electronic device An electronic device receives a feedback message sent by a second electronic device, the second electronic device is a device in the first network, and the feedback message is used to confirm that the first electronic device joins the first network.

Through the above technical solution, the electronic device can exchange authentication information with the electronic device in the network in the form of broadcast, so as to join the network, that is, there is no need to establish a connection with the electronic device in the network, and the broadcast method can save connection resources and avoid Too many devices are connected and the connection fails. In addition, broadcasting consumes less power than connections, which can reduce power consumption.

In a possible design, the device authentication request message includes a unique device identifier UDID of the first electronic device and a device public key of the first electronic device.

Through the above technical solution, the electronic device can broadcast its own UDID and device public key to the electronic devices in the network, so that the electronic devices in the network can feed back their own device information and those to join the network after receiving the broadcast message. The electronic devices exchange authentication information so as to complete device authentication and enable new electronic devices to join the networking.

In a possible design, the feedback message includes the UDID of the second electronic device and the device public key of the second electronic device.

Through the above technical solution, the electronic devices in the network can feed back their own device information to the broadcasting electronic devices, so that the authentication information can be exchanged to complete the device authentication, so that new electronic devices can join the network.

In a possible design, the method further includes: the first electronic device establishes a connection with the second electronic device; the first electronic device encrypts the data to be transmitted, and sends the encrypted data to the second electronic device .

Through the above technical solution, after the first electronic device joins the network, if data transmission is to be performed, it needs to establish a connection with the electronic device in the network, negotiate a data transmission channel, and then perform data transmission. Since device authentication is performed in a broadcast manner during device authentication, connection resources are saved, and when a device needs to connect to transmit data, the problem of device connection failure can be avoided.

In a possible design, the first electronic device encrypts the data to be transmitted, including: the first electronic device encrypts the random number assigned by the session with the device public key of the second electronic device to obtain a session-level secret key; An electronic device encrypts data to be transmitted using a session-level key.

Through the above technical solution, the electronic device uses the session-level key to encrypt the data to be transmitted, which can improve the security of data transmission.

In a possible design, the method further includes: when the first electronic device meets the preset condition, the first electronic device broadcasts a first message, the first message includes a Do Not Disturb logo, and the first message is used to communicate with other Electronic devices synchronize device information; the first electronic device receives N messages and replies with M messages, where M and N are both positive integers, and M<N.

It should be understood that the first message may be a heartbeat packet, that is, it is used to synchronize information with other devices so as to keep the devices online within the network.

Through the above technical solution, the electronic device can carry the Do Not Disturb sign in the broadcast, so that other devices can know the status information of the device. When the device is in the Do Not Disturb state, the frequency of replying messages can be reduced to reduce power consumption.

In a possible design, the preset conditions include at least one of the following conditions: the load is greater than the first set threshold; the screen is off; the power is less than the second set threshold; ready to exit the network; Switching of standby equipment.

Through the above technical solution, it is more friendly to busy, off-screen, low-battery, and disconnected devices, and can avoid frequent response wake-up processing tasks, resulting in the inability to sleep when it is desired to sleep, resulting in high power consumption.

In a possible design, the first network further includes a third electronic device, and the third electronic device is a central device of the first network. The method further includes: after the first electronic device joins the first network, the central device of the first network is the third electronic device.

Through the above technical solution, when a new electronic device joins the network, there is no need to re-elect the central node, so as to avoid frequently changing the management and control relationship in the network.

In a possible design, the method further includes: if the first electronic device withdraws from the first network after a preset period of time, the central device of the first network is the third electronic device.

Through the above technical solution, when an electronic device withdraws from the network, there is no need to re-elect the central node, and the management and control relationship in the network can be frequently changed. Compared with the prior art, as long as the number of electronic devices in the networking changes, re-election of the central node can reduce power consumption and avoid the problem of complex logic.

In a possible design, the first electronic device is located in the second network, and the method further includes: after the first electronic device joins the first network, among the devices included in the first network and the second network, Identify the new central device.

Through the above technical solution, when the subnets are merged, the central node can be re-elected in the merged new network, so as to control the electronic devices in the network according to the new management and control relationship.

In a possible design, determining a new central device among the devices included in the first network and the second network includes: according to the device type of the equipment included in the first network and the second network, and the communication of the device Capabilities and power capabilities of the devices to determine new central devices.

Through the above technical solution, the central node in the merged network can be determined according to the equipment type, communication capability and power supply capability of the electronic equipment, which can form a low-energy and high-efficiency distributed network under the control of the new central node.

In a possible design, a new central device is determined according to the device type, communication capability of the device, and power supply capability of the device included in the first network and the second network, including:

Determine each device included in the first network and the second network according to the device type, the communication capability of the device, and the power supply capability of the device included in the first network and the second network the score; use the device with the highest score as the new central device.

Through the above technical solution, the electronic devices in the network can be scored, and then the electronic device with the highest scoring value can be selected as the central node, thereby avoiding the problems of high power consumption and complex logic caused by frequent replacement of the central node.

In a second aspect, the present application provides an electronic device, which includes a transceiver; one or more processors; one or more memories; one or more sensors; ; wherein said one or more computer programs are stored in said one or more memories, said one or more computer programs comprising instructions, and when said instructions are called for execution by said one or more processors, The electronic device is made to execute the above-mentioned first aspect and the method of any possible design of the first aspect.

In the third aspect, the present application also provides an electronic device, the electronic device includes modules/units that execute the first aspect or any possible design method of the first aspect; these modules/units can be implemented by hardware, or can be The corresponding software implementation is executed by hardware.

In a fourth aspect, the present application also provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the instructions are run on an electronic device, the electronic device executes the first aspect and its The method of any possible design in the first aspect.

In the fifth aspect, the present application also provides a computer program product, which, when the computer program product is run on the electronic device, enables the electronic device to execute the first aspect of the embodiment of the present application and any possible design of the first aspect. method.

For the various aspects and possible technical effects of the above-mentioned second to fifth aspects, please refer to the above description of the technical effects that can be achieved by various possible solutions in the first aspect, and will not be repeated here.

Description of drawings

FIG. 1 is a schematic diagram of a network architecture of a distributed networking provided by an embodiment of the present application;

FIG. 2 is a schematic diagram of module division of a networking provided by an embodiment of the present application;

FIG. 3 is a schematic diagram of an application scenario provided by an embodiment of the present application;

FIG. 4 is a flow chart of a network access method provided by an embodiment of the present application;

FIG. 5 is a schematic diagram of a message format of an authentication request message provided by an embodiment of the present application;

FIG. 6 is a flow chart of a data transmission method provided by an embodiment of the present application;

FIG. 7 is a schematic diagram of a message of a heartbeat packet provided by an embodiment of the present application;

FIG. 8A is a schematic structural diagram of an extended broadcast provided by an embodiment of the present application;

FIG. 8B is a schematic diagram of a data structure of an extended broadcast payload provided by an embodiment of the present application;

FIG. 9A is a schematic diagram of node network access provided by an embodiment of the present application;

FIG. 9B is a schematic diagram of a node going out of the network provided by the embodiment of the present application;

FIG. 9C is a schematic diagram of subnet merging provided by the embodiment of the present application;

FIG. 9D is a schematic diagram of subnet splitting provided by an embodiment of the present application;

FIG. 9E is a schematic diagram of subnet splitting provided by the embodiment of the present application;

FIG. 10 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described in detail below with reference to the drawings in the following embodiments of the present application.

At present, the way for an electronic device to join a network is usually to establish a connection with a device in the network through a short-distance communication technology such as Bluetooth, and then complete device authentication and join the network. For example, if the network 1 includes mobile phones, routers, and laptops, if the Bluetooth speaker wants to join the network 1, the Bluetooth speaker can establish a Bluetooth connection with the mobile phone, exchange authentication information, and then join the network 1 . Due to the limited number of devices connected by the short-distance communication technology, if more devices want to join the network 1, the connection may fail. Moreover, the more the number of connections, the higher the power consumption of the device, making the user experience poor.

In view of this, the embodiment of the present application provides a network access method. In this method, the electronic device exchanges authentication information with the devices in the network by broadcasting, and then joins the network, that is, there is no need to establish a connection with the devices in the network. You can join the network. The broadcast method can save connection resources and avoid connection failures caused by too many devices. Moreover, broadcasting consumes less power than connection, which can reduce power consumption. For example, if the network 1 includes mobile phones, routers, and laptops, if the Bluetooth speaker wants to join the network 1, the Bluetooth speaker can broadcast device information through broadcasting. The devices in the network 1, such as The mobile phone can also broadcast device information, so that the mobile phone can receive the broadcast message from the Bluetooth speaker, and the Bluetooth speaker can also receive the broadcast message from the mobile phone, so that the mobile phone and the Bluetooth speaker can be searched and found separately. Then, the Bluetooth speaker can broadcast a device authentication request message, which can carry its own unique device identifier (unique device identifier, UDID) and public key. When the mobile phone receives the broadcast message, it can send its own UDID and device public key The key is fed back to the Bluetooth speaker, so that the Bluetooth speaker can complete the authentication request with the mobile phone, and the Bluetooth speaker can join the network where the current mobile phone is located.

In the following, part of the terms used in the embodiments of the present application will be explained first, so as to facilitate the understanding of those skilled in the art.

1) Bluetooth: A radio technology that supports short-distance communication between devices, enabling wireless information exchange between many devices including mobile phones, wireless headsets, laptops, and related peripherals. The use of "Bluetooth" technology can effectively simplify the communication between mobile communication terminal equipment, and can also successfully simplify the communication between equipment and the Internet, so that data transmission becomes faster and more efficient, and broadens the road for wireless communication.

2) Wireless fidelity point-to-point (wireless fidelity-peer to peer, Wi-Fi P2P): also known as wireless local area networks (wireless local area networks, WLAN) direct connection or Wi-Fi Direct, is one of the Wi-Fi protocol clusters , so that devices can easily connect to each other without intermediary wireless access points. Its uses range from web browsing to file transfers and communicating with multiple devices simultaneously, taking full advantage of the speed of Wi-Fi. Devices conforming to this standard can be easily interconnected even if they come from different manufacturers.

3) Heartbeat packet: a command word used to regularly notify the other party of its own status between two electronic devices, which is sent at a certain time interval, similar to heartbeat.

Hereinafter, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features.

It should be noted that the network access method in the embodiment of the present application is applicable to a distributed networking architecture. Moreover, the method can be applied between multiple different electronic devices. Exemplarily, the electronic device may be a mobile phone, a tablet computer, a wearable device (for example, a watch, a bracelet, a smart helmet, smart glasses, etc.), a vehicle device, an augmented reality (augmented reality, AR)/virtual reality (virtual reality, VR equipment, notebook computers, ultra-mobile personal computers (ultra-mobile personal computers, UMPCs), netbooks, personal digital assistants (personal digital assistants, PDAs), etc., are not limited in this embodiment of the present application. The electronic device involved in the embodiment of the present application may be a foldable electronic device, such as a foldable mobile phone, a foldable tablet computer, etc., which is not limited in the present application. Also, exemplary embodiments of electronic devices include, but are not limited to, carrying

Harmony

Or electronic equipment with other operating systems.

As shown in FIG. 1 , it is a schematic diagram of a network architecture of a distributed network. The schematic diagram shown in (a) in FIG. 1 is a schematic diagram of a star-shaped networking architecture. Among them, node A1 is the main node (or called: central node), and nodes B1, C1, D1, E1, F1, and G1 are sub-nodes. The schematic diagram shown in (b) in FIG. 1 is a schematic diagram of a tree networking. Among them, A2 is the master node, B2 and C2 are child nodes (also called: routing nodes), D2 and E2 are child nodes (or also called: leaf nodes) of B2, and F2 is a child node of C2.

It should be understood that FIG. 1 is only a schematic illustration, and the structure of the distributed networking may also be other structures, which are not limited in the present application.

FIG. 2 is a schematic diagram of module division of a networking provided by an embodiment of the present application. As shown in FIG. 2 , it may specifically include a business application program (application, APP) 21 , a networking service module 22 , a network hub module 23 , and a driver and chip interface module 24 . Among them, the networking service module 22 is used to provide networking scanning, querying and reporting of networking status, storage of related attributes and statuses of networking nodes and device peripherals, and control and distribution channels of central nodes. The network central module 23 is used to provide ad hoc network fusion between devices to form a hybrid heterogeneous network, and manage the network state machine and network records. The driver and chip interface module 24 is used for channel state management, detection, heartbeat, and link resource management.

The application scenario of this application is introduced below. As shown in FIG. 3 , it is a schematic diagram of an application scenario provided by the embodiment of the present application. Referring to FIG. 3 , the application scenario takes an electronic device in a household scenario as an example. Exemplarily, multiple electronic devices can be connected to the router, such as a user's mobile phone, Bluetooth headset, tablet computer, Bluetooth speaker, TV, soybean milk machine, range hood, and the like. Wherein, electronic devices located in different regions may also be connected to form a subnet under the distributed networking. For example, the TV, speakers, and water dispenser in the living room can be connected to form subnet 1, and the speakers in the dining room can be connected to the sweeping robot and laptop to form subnet 2.

In some embodiments, electronic devices can search and discover other electronic devices through Wi-Fi, Bluetooth, etc., and then exchange each other's UDID and device public key with the electronic devices discovered through broadcasting to complete device authentication Join the network. Compared with the way of joining the networking through BT or Wi-Fi and other connection methods, it can reduce power consumption. It should be noted that the present application is not limited to the broadcast form, for example, information may be exchanged with other electronic devices in the form of unicast, multicast, or broadcast.

When data needs to be transmitted between electronic devices, a data transmission channel can be established. Exemplarily, different electronic devices can be connected through Wi-Fi, wireless fidelity-peer to peer (Wi-Fi P2P) or Huawei magneto link (HML) etc. Establish a data transmission channel. Then, the data to be transmitted can be encrypted by the device key between different electronic devices, and then the data can be transmitted through the established data transmission channel. After receiving the encrypted data, the peer device can decrypt the encrypted data to complete the data transmission process.

The method in this embodiment of the present application will be introduced below by taking two electronic devices, such as a mobile phone and a tablet computer, as examples. As shown in Figure 4, it is a flow chart of a network access method provided by the embodiment of the present application. Referring to Figure 4, the method may include the following steps:

S401: The mobile phone broadcasts a device discovery request message.

Among them, the device discovery request message can carry the connection capability of the mobile phone (such as whether it supports 5G connection, Wi-Fi P2P connection, ETH connection, etc.), Bluetooth name, UDID of the mobile phone and other information.

In some embodiments, the device discovery request message may be a message broadcast by the mobile phone through BT or Wi-Fi. Exemplarily, when the mobile phone turns on BT, it can scan and find peripheral devices that have turned on BT, and display a list of connectable BT devices on the mobile phone. In another example, the mobile phone can discover other electronic devices under the same local area network as its own device through searching.

S402: The mobile phone receives the first feedback message sent by the tablet computer.

Since the device discovery request message is broadcast by the mobile phone, multiple electronic devices will receive the broadcast message. If the electronic device that receives the broadcast message finds that the information carried in the broadcast message match, then send the first feedback message to the mobile phone. Wherein, the first feedback message may carry device information of the own device, such as identification information of the tablet computer, capability information of the tablet computer, and the like. It should be noted that there may be at least one device for feeding back messages to the mobile phone, and this application only takes one, that is, a tablet computer as an example for illustration.

Optionally, before S401 is executed, the tablet computer can set its own device information, such as setting the Bluetooth name, account information, connection capability (whether it supports 5G connection, etc.), etc., and then the tablet computer can broadcast the set own device information, that is, Publish service information. When the tablet computer receives the device discovery request message, if the information broadcast by the mobile phone matches the device information it needs, for example, the mobile phone supports 5G capability, and the tablet computer needs a device that supports 5G capability, then the tablet computer can respond to the device discovery of the mobile phone The message is requested, and the first feedback message is replied to the mobile phone.

S403: The mobile phone broadcasts a device authentication request message.

Wherein, the device authentication request message may carry the device's UDID and device public key, that is, the mobile phone's UDID and the mobile device's public key. For example, the message format of the authentication request message broadcast by the mobile phone may refer to FIG. 5 , and the authentication data in FIG. 5 may include the UDID of the device and the public key of the device.

S404: The tablet computer sends the second feedback message to the mobile phone.

Wherein, the second feedback message may include the device UDID and the device public key of the tablet computer. In some embodiments, after the mobile phone broadcasts the device authentication request message, the tablet computer can receive the device authentication request message broadcast by the mobile phone, and then send its own device UDID and device public key to the mobile phone, so as to perform device authentication with the mobile phone and establish a device level trust relationship to join the networking.

In some embodiments, the mobile phone and the tablet computer can store the UDID and the device public key of the peer device respectively, so as to encrypt and decrypt the data to be transmitted later.

Through the above steps, the mobile phone can perform device authentication with the tablet computer through broadcasting, that is, the two electronic devices can exchange authentication information without connecting to complete the trust relationship between the devices. Since the power consumption required for establishing a connection is higher than the power consumption required for broadcasting, the method in this embodiment of the present application can reduce power consumption compared with the method of joining a networking through a connection. Moreover, as the number of device connections increases, the failure rate will also increase, and even the connection cannot be established. The broadcast method can save connection resources and avoid the rapid exhaustion of connection resources, resulting in the failure to connect.

Optionally, after S404, that is, after the devices join the networking, if the devices need to transmit data, it is necessary to establish a data transmission channel between the devices, and then transmit data through the established data transmission channel. Exemplarily, FIG. 6 is a flowchart of a data transmission method provided by an embodiment of the present application. Referring to Figure 6, the method may include the following steps:

S601: Establish a data transmission channel between the mobile phone and the tablet computer.

In some embodiments, a Wi-Fi P2P connection or a Wi-Fi connection or an HML connection can be established between the mobile phone and the tablet computer, that is, a Wi-Fi P2P data transmission channel or a Wi-Fi data transmission channel or an HML data transmission channel can be established.

It should be understood that when a data transmission channel is established between two devices, it needs to be determined that the two devices support data connection capabilities at the same time. For example, when a mobile phone establishes a Wi-Fi P2P connection with a tablet computer, both the mobile phone and the tablet computer need to support the Wi-Fi P2P connection capability, otherwise the Wi-Fi P2P data transmission channel cannot be established.

S602: Negotiate a data transmission protocol between the mobile phone and the tablet computer.

In some embodiments, after the data transmission channel is established between the mobile phone and the tablet computer, the data transmission protocol can be negotiated, such as negotiating the role of the device for data transmission, the frequency of data transmission (that is, using 5G/2.4G) and so on. Exemplarily, when both the mobile phone and the tablet computer support Wi-Fi P2P transmission, it can be negotiated which device is the group manager (group owner, GO) and which device is the group user (or called: general terminal) during the data transmission process. ) (group client, GC).

Optionally, after the mobile phone and the tablet computer have negotiated the data transmission protocol, the mobile phone may send a notification message to the tablet computer to notify the tablet computer that the data transmission channel has been established.

S603: The mobile phone encrypts the data to be transmitted, and sends the encrypted data to be transmitted to the tablet computer.

In some embodiments, the mobile phone can use the public key of the tablet computer saved by itself to encrypt the random number generated in this session to generate a session-level key, and then use the session-level key to encrypt the data to be transmitted, and finally use the session-level key to encrypt the data to be transmitted. The data to be transmitted encrypted by the level secret key is transmitted to the tablet computer.

S604: The tablet computer decrypts the received data.

In some embodiments, after the tablet computer receives the data sent by the mobile phone, it can use the device public key of its own device to decrypt the random number to obtain the random number, and then use the random number to decrypt the data to be transmitted to obtain the data sent by the mobile phone. The data.

Through the above steps, the mobile phone can encrypt the data to be transmitted, and then the peer device can use the stored device-level key to decrypt the encrypted data, which improves the security of data transmission.

Optionally, in order to maintain communication between electronic devices, heartbeat packets may be sent between two electronic devices to maintain a trust relationship. At present, under the distributed networking architecture, there are generally two ways to send heartbeat packets:

The first way: the child node requests to synchronize the information of the master node, that is, the child node sends a heartbeat packet to the master node.

The second way: the master node periodically sends synchronization information to the child nodes, that is, the master node sends heartbeat packets to the child nodes.

For the convenience of description, the way in which the master node sends synchronization information to the child nodes can be recorded as "push", that is, to push the synchronization information, and the way in which the child nodes request synchronization information from the master node can be recorded as "poll".

In this embodiment of the application, it may be determined whether to send a heartbeat packet, how long to send it, and how to send it in combination with device information, device status, and network topology. Exemplarily, as shown in FIG. 7 , it is a message schematic diagram of a heartbeat packet. Wherein, the synchronous information is the 21Byte synchronous data shown in the figure.

In some embodiments, the master node sends a heartbeat packet to the child node according to the topology result, taking the network topology shown in Figure 1 as an example, in the star network topology, the master node sends the heartbeat packet to the child node through push; In the shape network topology, the master node sends a heartbeat packet to the routing node through push, and the routing node then sends the heartbeat packet to the leaf node. As a possible implementation manner, the heartbeat packet may carry sequence seq identifier information, and when the child node finds that the seq identifiers of the received heartbeat packets are the same, redundant heartbeat packets may be discarded to avoid broadcast storms.

As another possible implementation manner, the Do Not Disturb identification information may be carried in the heartbeat packet. For example, when the identification information is 1, it means that the device is in the Do Not Disturb state; when the identification information is 0, it means that the device is in the non-Do Not Disturb state. Exemplarily, the device entering the Do Not Disturb state may include the following trigger conditions: Situation 1: The device is busy and the load is too high (for example, the load is above 70%); Situation 2: The screen is off; Situation 3: The power is low (such as, The power remaining is less than 30%); Situation 4: Ready to exit the network; Situation 5: If it is the master node, there is a switchover between the master and backup nodes. When at least one of the above situations occurs on the device, it can carry the Do Not Disturb logo in the heartbeat packet, and multicast the heartbeat packet to the devices in the network to inform the devices in the network that the frequency of replying messages may be reduced or not Reply message. When a device in the network receives the heartbeat packet, it can know that the device is in the Do Not Disturb state through the identification information carried in the heartbeat packet. When the device is in the Do Not Disturb state, if it receives n heartbeat packets, it can reply m (m<n) heartbeat packets by push, which reduces the frequency of responding to push requests and reduces power consumption. When the business needs it, the status information of the device is synchronized through poll to reduce power consumption.

It should be understood that the devices in the network can also periodically obtain the status information of the devices through polling. For example, the status information of other devices can be obtained every 1 minute to determine whether other devices are in the do-not-disturb state.

Correspondingly, the recovery of the device from the do-not-disturb state to the normal state may include the following trigger conditions: case 1: load reduction; case 2: screen bright state; case 3: power recovery; case 4: join the network. When at least one of the above situations occurs on the device, it can return to the normal state from the Do Not Disturb state. At this time, the Do Not Disturb identification information of the heartbeat packet can be modified to 0, and multicast to the network in the form of push other nodes, thus entering the normal state. Of course, after the device returns to the normal state from the Do Not Disturb state, if you need to synchronize the state information of the device, you can also obtain the state information of the device through poll.

In the embodiment of the present application, device information can be synchronized through a combination of push and poll, which can save more power consumption than the single method of push or poll in the prior art. Moreover, it is friendly to busy, off-screen, low-power, and off-network devices, and can avoid frequent response wake-up processing tasks, resulting in inability to sleep when you want to sleep, and the load is pulled up, causing high power consumption.

Optionally, when the heartbeat packet needs to carry more information, the extended broadcast of Bluetooth 5.0 can be used to broadcast the heartbeat packet, so that more device information can be synchronized to the peer device. As shown in FIG. 8A , it is a schematic structural diagram of an extended broadcast provided by the embodiment of the present application. In the schematic diagram shown in FIG. 8A , the header information (header) of the Bluetooth broadcast is at the lowest bit, occupying 16 bits, and the payload (Payload) is at the highest bit.

FIG. 8B is a schematic diagram of the data structure of the payload of the extended broadcast. Referring to FIG. 8B, it can include four parts: Extended Header Length, AdvMode, Extended Header, and AdvData. Among them, Extended Header Length is 6bit, AdvMode is 2bit, Extended Header is 0-63 bytes, and AdvData is 0-254 bytes.

Furthermore, in a distributed network, each node in the network can elect a central node as the highest-level node, and other nodes as child nodes. According to the current plan, when a node joins/exits the network, that is, when a new device connects to the network or a device exits the connection, the election of the central node must be re-elected, which will cause the device management and control relationship in the network to continue to occur Changes, resulting in high power consumption and complex logic problems.

Based on this, in some embodiments of the present application, the central node is not changed when the child node enters or exits the network, and re-election of the central node is avoided as much as possible, thereby avoiding frequent changes in the management and control relationship.

Exemplarily, as shown in FIG. 8A , it is assumed that the current networking is as shown in (a) in FIG. 9A , that is, the current networking is a networking formed by nodes B and C. Among them, node C is the central node, and node B is the child node of node C. At this time, if child node A, as a network access node, wants to join the current networking, it can send an authentication request message to node B, so as to complete the device authentication with node B and join the current networking. According to the current scheme, the central node is usually re-elected among node A, node B, and node C. However, in the embodiment of this application, when node A requests to join the network, the central node may not be changed. That is, after node A joins the current networking, the central node is still node C. For example, after sub-node A completes network access, refer to (b) in FIG. 9A .

For example, assuming that the current network is composed of mobile phones and routers, the router is the central node C, and the mobile phone is the access node B. At this time, the Bluetooth speaker as the network access node C wants to join the current network, then the Bluetooth speaker can Broadcast an authentication request message. After receiving the authentication request message, the mobile phone can exchange device information with the Bluetooth speaker to complete the device-level trust relationship and join the network. When the Bluetooth speaker joins the current network, the router is still the central node, and the Bluetooth speaker is controlled by the mobile phone.

As shown in Figure 9B, assume that the current network is shown in (a) in Figure 9B, the central node is node C, node A and node B are the child nodes under the current network, when child node A is the outgoing node After networking, the current networking can change, such as shown in (b) in Figure 9B, that is, the current networking can change from the networking of node A, node B and node C to the group consisting of node B and node C net.

In other embodiments, the central node can be re-elected. Exemplarily, the trigger conditions for central node re-election may include the following conditions:

1: re-election in the current network when power capacity <= 30%

2: Re-election of the central node when the subnet is merged

When the subnets under the distributed networking are merged, a new central node can be re-elected from the two central nodes of the two subnets as the new central node. Exemplarily, as shown in FIG. 9C , it is assumed that the subnet includes a subnet 1 and a subnet 2, the subnet 1 includes nodes C and B, and the subnet 2 includes nodes A and D. Among them, node C is the central node of subnet 1, and node D is the central node of subnet 2. If subnet 1 and subnet 2 are to be merged, node A can send an authentication request message to node B to join network 1 . At this time, a new central node can be re-elected from central node D and central node C, for example, the new central node is node C, and the merged network can be shown in (b) in FIG. 9C . Certainly, the central node of the merged network may also be elected from other nodes except the central node D and the central node C, which is not specifically limited.

As a possible implementation, you can choose a device with a fixed location, insensitive to power consumption, and relatively sufficient Read-Only Memory (ROM) and Random Access Memory (RAM) resources as the central node. Exemplarily, the device information can be scored, for example, the device information can be scored according to the device type, device communication capability, and power supply capability. Exemplarily, the scoring value of the device information=device type+communication capability+power supply capability. If the above parameters are exactly the same, the devices are sorted according to the network access time, and the device with the longest network access time is selected as the central node. Through the above formula, the score of the device can be calculated, and then the center node can be selected based on the score result of the device. For example, the device with the highest score can be selected as the new center node.

Wherein, the device type, the communication capability and the power supply capability of the device can refer to the following Table 1, Table 2, and Table 3 respectively.

Table 1

Equipment type	default value
mobile phone, tablet	500
car machine, big screen	500
Smart watch, speaker with screen	300
speakers, routing	300
Bracelets, sports watches	0
IOT lights, switches, sensors	0

It should be understood that the preset values shown in Table 1 are corresponding values under different device types. For example, when the device is a mobile phone, the value of the device type may be 500.

Table 2

Communication ability	default value
Wi-Fi: wide coverage, flexible access	300
Local Area Network LAN: High Bandwidth	300
Bluetooth Low Energy BLE: unlimited support for access	100
Classic Bluetooth BR: Point to Point	0

USB: point-to-point	0
other	0

It should be understood that the preset values shown in Table 2 are values corresponding to different communication capabilities. For example, when the communication capability of the device is Wi-Fi, the value of the communication capability may be 300.

table 3

power capacity	default value
Power supply: large screen, router, speaker, car machine, smart light, smart switch	500
Battery Powered: Cell Phones, Tablets	80, every 10% power-off reduces power consumption by 10
Battery Powered and Power Sensitive: Watches, Battery Powered Security Door Locks	20, every 10% power-off power consumption will be reduced by 10

It should be understood that the preset values shown in Table 3 are values corresponding to different power capabilities. For example, when the power capability of the device is powered by a battery, the value of the power capability may be 80.

It should be understood that the above table is only a schematic illustration, and the present application does not specifically limit the device type, device communication capability, power supply capability, and corresponding preset values. For example, in Table 2, the high-bandwidth communication capability is not limited to the local area network, and the devices powered by power in Table 3 may also be other devices.

As another possible implementation manner, in different scenarios, a device may have different priorities as a central node. For example, in the home scene, router > speaker > big screen > PC > mobile phone, that is, in the home scene, the preferred route is the central node; in the travel scene, car machine > PC > mobile phone > smart watch, that is, the car machine as the central node.

As shown in FIG. 9D , it is assumed that the current networking is a schematic networking diagram shown in (a) in FIG. 9D . When node A and node D want to quit the current network, they can split the subnet, that is, split the current network into subnet 1 composed of node B and node C and the subnet of node A and node D 2, as shown in (b) in Figure 9D, for example.

As a possible implementation, when the sub-network is split, the devices with a sharing relationship can go out of the network together. Exemplarily, as shown in FIG. 9E , it is assumed that the current networking is a schematic diagram shown in (a) in FIG. 9E . Among them, there is an association between node D and node C. For example, node D is a headset, node C is a mobile phone, and there is a sharing relationship between the mobile phone and the headset. When the subnet composed of node A and node D wants to be split from the current network , the devices with sharing relationship can be split together, for example, as shown in (b) in FIG. 9E , the split network can include networking 1 and networking 2. Wherein, network 1 includes node A, and network 2 includes node B, node C, and node D. It should be understood that the devices having a sharing relationship refer to at least two devices sharing the same Wi-Fi or the same Bluetooth.

In the above-mentioned embodiments provided in the present application, the method provided in the embodiments of the present application is introduced from the perspective of an electronic device serving as an execution subject. In order to implement the various functions in the method provided by the above embodiments of the present application, the electronic device may include a hardware structure and/or a software module, and implement the above various functions in the form of a hardware structure, a software module, or a hardware structure plus a software module. Whether one of the above-mentioned functions is executed in the form of a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraints of the technical solution.

As shown in FIG. 10 , some other embodiments of the present application disclose an electronic device. 10, the electronic device 1000 includes: a transceiver 1001, one or more processors 1002; one or more memory 1003; and one or more computer programs 1004 (not shown in the figure), each of the above The devices may be connected by one or more communication buses 1005 .

Wherein, one or more computer programs are stored in the memory 1003, and the one or more computer programs include instructions; the processor 1002 invokes the instructions stored in the memory 1003, so that the electronic device 1000 can perform the methods of the above-mentioned embodiments.

In this embodiment of the application, the processor 1002 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement Or execute the methods, steps and logic block diagrams disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the methods disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor. The software module may be located in the memory 1003, and the processor 1002 reads the program instructions in the memory 1003, and completes the steps of the above method in combination with its hardware.

In the embodiment of the present application, the memory 1003 may be a non-volatile memory, such as a hard disk (hard disk drive, HDD) or a solid-state drive (solid-state drive, SSD), etc., and may also be a volatile memory (volatile memory), For example RAM. The memory may also be, but is not limited to, any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. The memory in the embodiment of the present application may also be a circuit or any other device capable of implementing a storage function, and is used for storing instructions and/or data.

Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working process of the above-described devices and units can refer to the corresponding process in the foregoing method embodiments, and details are not repeated here.

Based on the above embodiments, the present application also provides a computer storage medium, where a computer program is stored, and when the computer program is executed by a computer, the computer executes the method provided by the above embodiments.

Embodiments of the present application further provide a computer program product, including instructions, which, when run on a computer, cause the computer to execute the method provided in the above embodiments.

Embodiments of the present application are described with reference to flowcharts and/or block diagrams of methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by instructions. These instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine such that execution of the instructions by the processor of the computer or other programmable data processing device produces a Means for the function specified in one or more steps of a flowchart and/or one or more blocks of a block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions The device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby The instructions provide steps for implementing the functions specified in the flow chart or blocks of the flowchart and/or the block or blocks of the block diagrams.

Claims (14)

1. A network access method, characterized in that, comprising:

   The first electronic device broadcasts a device authentication request message, and the device authentication request message is used to perform device authentication with at least one device in the first network;

   The first electronic device receives a feedback message sent by a second electronic device, the second electronic device is located in the first network, and the feedback message is used to confirm that the first electronic device joins the first network .
2. The method according to claim 1, wherein the device authentication request message includes a unique device identifier (UDID) of the first electronic device and a device public key of the first electronic device.
3. The method according to claim 1 or 2, wherein the feedback message includes the UDID of the second electronic device and the device public key of the second electronic device.
4. The method according to any one of claims 1-3, wherein the method further comprises:

   establishing a connection between the first electronic device and the second electronic device;

   The first electronic device encrypts the data to be transmitted, and sends the encrypted data to the second electronic device.
5. The method according to claim 4, wherein said first electronic device encrypts the data to be transmitted, comprising:

   The first electronic device uses the device public key of the second electronic device to encrypt the random number assigned by the session to obtain a session-level secret key;

   The first electronic device encrypts the data to be transmitted by using the session-level key.
6. The method according to any one of claims 1-5, wherein the method further comprises:

   When the first electronic device meets the preset condition, the first electronic device broadcasts a first message, the first message includes a Do Not Disturb logo, and the first message is used to synchronize device information with other electronic devices;

   The first electronic device receives N messages and replies with M messages, both of M and N are positive integers, and M<N.
7. The method according to claim 6, wherein the preset conditions include at least one of the following conditions:

   The load is greater than the first set threshold;

   screen off state;

   The power is less than the second set threshold;

   Prepare to exit the network;

   Switching between active equipment and standby equipment.
8. The method according to claim 1, wherein the first network further includes a third electronic device, and the third electronic device is a central device of the first network;

   The method also includes:

   After the first electronic device joins the first network, the central device of the first network is the third electronic device.
9. The method of claim 8, further comprising:

   If the first electronic device withdraws from the first network after a preset period of time, the central device of the first network is the third electronic device.
10. The method according to claim 1, wherein the first electronic device is located in the second network, and the method further comprises:

    After the first electronic device joins the first network, a new central device is determined among devices included in the first network and the second network.
11. The method according to claim 10, wherein determining a new central device among the devices included in the first network and the second network comprises:

    A new central device is determined according to the device types, communication capabilities of the devices, and power supply capabilities of the devices included in the first network and the second network.
12. The method according to claim 11, wherein a new central device is determined according to the device type, communication capability of the device, and power supply capability of the device included in the first network and the second network, include:

    Determine each device included in the first network and the second network according to the device type, the communication capability of the device, and the power supply capability of the device included in the first network and the second network score;

    The device with the highest score is used as the new central device.
13. An electronic device, characterized in that the electronic device comprises a transceiver; one or more processors; one or more memories; and one or more computer programs;

    wherein said one or more computer programs are stored in said one or more memories, said one or more computer programs comprising instructions which, when invoked by said one or more processors for execution, cause The electronic device executes the method according to any one of claims 1-12.
14. A computer-readable storage medium, wherein instructions are stored in the computer-readable storage medium, wherein when the instructions are run on an electronic device, the electronic device is made to execute any one of claims 1 to 12. the method described.

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