CN113132966A

CN113132966A - Intelligent terminal fast network access method

Info

Publication number: CN113132966A
Application number: CN201911391378.8A
Authority: CN
Inventors: 杨岭才; 尹承稷; 吴思运; 姜弘民; 孙洪; 艾水根
Original assignee: Tianyi Smart Family Technology Co Ltd
Current assignee: Tianyi Digital Life Technology Co Ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2021-07-16

Abstract

The invention provides an intelligent terminal fast network access method based on an IEEE802.11 protocol, which comprises the following steps: the method comprises the steps that an intelligent terminal packages terminal information in a Probe Request frame to be sent, wherein the terminal information at least comprises information indicating whether the intelligent terminal is a first distribution network or not; the home gateway determines whether the intelligent terminal is distributed with a network for the first time based on the terminal information encapsulated in the received Probe Request frame; in response to determining that the intelligent terminal is a first distribution network, sending a message indicating that a device which is not distributed with the network is found to a user to request the user to authorize the device to execute distribution of the network; in response to receiving the authorization of the user, the home gateway packages the distribution network information for the intelligent terminal to access the network into a Beacon frame and sends the Beacon frame to the intelligent terminal; and the intelligent terminal accesses the network based on the distribution network information encapsulated in the received Beacon frame.

Description

Intelligent terminal fast network access method

Technical Field

The invention relates to a mobile communication technology, in particular to an intelligent terminal fast access network method based on an IEEE802.11Wi-Fi standard protocol.

Background

In recent years, with the advance of national strategies such as broadband china and integration of three networks, the problem of network configuration (for short, "distribution network") of intelligent terminals has become a pain point for industry development in the process of exploring intelligent home services. The pursuit of the safety and the high efficiency of the distribution network has become the technical improvement requirement of the intelligent terminal network configuration.

The mainstream intelligent terminal network configuration technical scheme in the industry at present comprises SmartConfig (multicast/broadcast), soft AP and IEEE802.11 protocol extension scheme. Each of these three approaches has its drawbacks.

The SmartConfig (multicast/broadcast) scheme has low success rate and low speed due to the compatibility problem of the mobile phone and the router, the instability of UDP (user datagram protocol) and the serial characteristic of a distribution network.

The soft AP scheme requires a user to switch to an AP hotspot of the network access equipment and manually input an account password, so that the operation is complex and the speed is low.

The existing IEEE802.11 protocol extension scheme is actively initiated by AP equipment such as a router and the like, the distribution network information is directly added into a Probe request frame or a Beacon frame of WIFI, the transmission of the distribution network information is realized through intermediate equipment or direct broadcasting, an interaction process with the equipment is avoided, an equipment discovery process, a user authorization process and an encryption mode are lacked, and safety risks exist. Meanwhile, because no device to be configured finds the flow, the situation that the other devices are automatically configured with the network by mistake occurs. In addition, the distribution network is actively initiated by AP equipment such as a router and the like, and when the WIFI password is changed and other conditions occur, an automatic reconnection mechanism for changing the password after the equipment is disconnected does not exist.

Disclosure of Invention

This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

Aiming at the defects or improvement requirements in the prior art, in order to meet good user experience, enhance the safety of the distribution network process and improve the standardization degree of the scheme, the invention provides an intelligent terminal fast network access method based on an IEEE802.11Wi-Fi standard protocol Probe/Beacon frame.

In the connection process based on the Wi-Fi standard, the intelligent terminal equipment requests the distribution network through equipment Information packaged by a Vendor-Specific Information Element (VSIE) in a Probe Request frame. And the home gateway realizes equipment discovery by using the equipment information encapsulated by the VSIE in the received Probe request frame. After the user authorizes the network distribution, the gateway utilizes the Beacon frame, encapsulates the network distribution information through the VSIE and sends the network distribution information to the intelligent terminal, and therefore the device can be connected to the network quickly. Meanwhile, in the whole intelligent terminal fast connection network access flow, the intelligent device, the home gateway and the platform jointly generate an independent key through a PIN code or an ECDH key exchange algorithm to encrypt the distribution network information.

According to an aspect of the present invention, there is provided a method for a smart terminal to fast access a network based on an IEEE802.11 protocol, wherein the method includes:

the method comprises the steps that an intelligent terminal packages terminal information in a Probe Request frame to be sent, wherein the terminal information at least comprises information indicating whether the intelligent terminal is a first distribution network or not;

the home gateway determines whether the intelligent terminal is distributed with a network for the first time based on the terminal information encapsulated in the received Probe Request frame;

in response to determining that the intelligent terminal is a first distribution network, sending a message indicating that a device which is not distributed with the network is found to a user to request the user to authorize the device to execute distribution of the network;

in response to receiving the authorization of the user, the home gateway packages the distribution network information for the intelligent terminal to access the network into a Beacon frame and sends the Beacon frame to the intelligent terminal; and

and the intelligent terminal accesses the network based on the distribution network information encapsulated in the received Beacon frame.

According to one embodiment of the invention, the intelligent terminal encapsulates the terminal information in a Probe Request frame through a Vendor Specific Information Element (VSIE), and the home gateway encapsulates the distribution network information in a Beacon frame through the VSIE.

According to a further embodiment of the invention, the method further comprises:

the home gateway filters the received Probe Request frame according to the organization unique identifier OUI in the VSIE data; and

and the intelligent terminal filters the received Beacon frame according to the OUI in the VSIE data.

According to a further embodiment of the present invention, the terminal information further includes a MAC address of the intelligent terminal, and the Beacon frame sent by the home gateway to the intelligent terminal includes the MAC address of the intelligent terminal, and the intelligent terminal determines whether the Beacon frame is sent to itself according to the MAC address included in the Beacon frame.

According to a further embodiment of the present invention, the information in the VSIE is encapsulated in a "type-length-value" ternary data set, wherein the type indicates a category of the ternary data set, the category includes a command, a device ID, a BSSID, a MAC address, a key, a distribution network parameter, and data, and the length indicates a length of a value in the ternary data set, and the value is actual data.

According to a further embodiment of the invention, the values of type "data" are also represented in the form of a "type-length-value" ternary data set.

According to a further embodiment of the invention, the distribution network information comprises at least an SSID and a password of the network.

According to a further embodiment of the present invention, sending a message to a user indicating that a device not being configured with a network is found to request the user to authorize performing network distribution for the device further comprises:

the home gateway notifying a user of the discovery of a new device that is not configured for a network through an application on a user client, wherein the user client is a smart terminal that has been connected to the network;

receiving a user's reply as to whether authorization is granted or not in the application; and

the application program sends the reply to the home gateway.

According to another aspect of the present invention, there is provided a home networking system based on IEEE802.11 protocol, wherein the system includes:

a home gateway;

one or more networking terminals connected to the home gateway; and

one or more intelligent terminals in communication interaction with the home gateway via any one of the networking terminals, wherein:

the application program sends the reply to the home gateway. .

Compared with the existing network distribution method, the fast connection network access method of the invention at least has the following advantages:

(1) the intelligent terminal actively initiates a distribution network request to realize automatic discovery of the equipment to be distributed, so that a user can select to authorize the equipment to distribute the network.

(2) The equipment information is verified through the interaction process of the Probe Request frame and the Beacon frame, instead of simply broadcasting information through a Wi-Fi frame, and the accuracy and the safety of the equipment to be networked are guaranteed.

These and other features and advantages will become apparent upon reading the following detailed description and upon reference to the accompanying drawings. It is to be understood that both the foregoing general description and the following detailed description are explanatory only and are not restrictive of aspects as claimed.

Drawings

So that the manner in which the above recited features of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to embodiments, some of which are illustrated in the appended drawings. It is to be noted, however, that the appended drawings illustrate only some typical aspects of this invention and are therefore not to be considered limiting of its scope, for the description may admit to other equally effective aspects.

Fig. 1 is an exemplary block diagram of a home gateway networking system according to one embodiment of the invention.

Fig. 2 is an exemplary flowchart of a fast network access method of an intelligent terminal according to an embodiment of the present invention.

Detailed Description

The present invention will be described in detail below with reference to the attached drawings, and the features of the present invention will be further apparent from the following detailed description.

Fig. 1 is an exemplary block diagram of a home gateway networking system according to one embodiment of the invention. As shown in fig. 1, a home gateway networking system may include a home gateway (102), one or more networking terminals (108a, 108b), and one or more smart terminals (110a, 110b, 110c, 110 d).

The home gateway 102 is typically provided by a telecommunications operator for accessing home networking into the internet. The home gateway 102 may also communicate with a cloud-based smart home platform via the internet. In one example, home gateway 102 includes networking plug-in 104 and quick connect plug-in 106. Networking plug-in 104 and quick connect plug-in 106 may be implemented in software (e.g., as plug-ins running on home gateway 102) or in hardware (e.g., as separate or integrated hardware modules). The networking plug-in 104 and the fast connectivity plug-in 106 may communicate via an inter-process communication mechanism (IPC).

One or more networking terminals (108a, 108b) may be connected to the home gateway 102. The networking terminals (108a, 108b) may be networking devices such as wireless routers, APs, and the like. As an example of the present invention, a networking terminal supports the IEEE802.11Wi-Fi standard protocol. It will be understood by those skilled in the art that although the networking terminal and the home gateway are shown in fig. 1 as two distinct pieces of hardware, they may be integrated together. Furthermore, although networking terminal 108a and networking terminal 108b are shown in fig. 1 as being respectively directly connected to home gateway 102, those skilled in the art will appreciate that multiple networking terminals may be connected in a hierarchy, e.g., networking terminal 108b (e.g., an AP) may be connected to networking terminal 108a (e.g., a wireless router) rather than directly to home gateway 102. Each networking terminal may be connected with one or more intelligent terminals (110a, 110b, 110c, 110 d).

The intelligent terminals (110a, 110b, 110c, 110d) can find surrounding networking terminals through scanning. In this application, the term "smart terminal" may refer to any mobile computing device having wireless communication capabilities (e.g., supporting the ieee802.11wi-Fi standard protocol), and thus may also be used interchangeably with "smart terminal device", "mobile device", or "mobile terminal" in the context of the present invention. As an example, the smart terminal (110a, 110b, 110c, 110d) may be a smart phone, a tablet computer, a laptop computer, a smart speaker, a smart television, a smart camera or other smart appliance, etc. that supports IEEE802.11Wi-Fi standard protocols.

The home gateway networking system can be configured to realize the intelligent terminal fast access network method based on the IEEE802.11wi-Fi standard protocol Probe/Beacon frame.

The method can realize the automatic discovery of the distribution network of the intelligent terminal. When the intelligent terminal device scans the network, the Probe Request frame in the IEEE802.11Wi-Fi standard protocol is used to encrypt the device MAC, the terminal key interaction Information and other terminal Information, and then report the terminal Information to the surrounding networking terminals (for example, APs) through the VSIE (Vendor-Specific Information Element). After receiving the device information, the AP filters the frame according to whether the VSIE has an organization Unique Identifier (Organizationally Unique Identifier). And pushing the equipment information to the cloud/APP terminal, so that the automatic discovery of the equipment distribution network of the user terminal is realized.

After discovering the smart device, when the user determines that the smart device is allowed to access the network at the client, the user encrypts the distribution network Information such as SSID, PASSWORD, encryption mode, key exchange Information, etc. of WIFI through the Beacon frame of the AP and then sends the encrypted distribution network Information to the smart terminal device through the VSIE (Vendor-Specific Information Element). And the intelligent terminal equipment decrypts the encrypted distribution network information according to the encryption mode and the secret key exchange information issued by the AP contained in the VSIE, acquires the SSID and PASSWORD of the WIFI and is quickly connected to the network. The distribution network key is used as the distribution network key through a key generated by combining and encrypting an ECDH algorithm negotiation key or an intelligent device PIN code and an ECDH algorithm negotiation key.

The above-mentioned Probe/Beacon frame is a frame specified and used in the IEEE802.11Wi-Fi standard protocol. Beacon frames (i.e., Beacon frames) are a fairly important maintenance mechanism, primarily used to announce the presence of a certain network. The periodically transmitted beacons allow the mobile stations to learn of the presence of the network and thereby adjust the parameters necessary to join the network. In the basic network, the access point is responsible for sending Beacon frames, and the range of the Beacon frames is the basic service area. In a basic network, all communication must pass through the access point, so the stations cannot be too far apart, or else they cannot receive beacons.

The Probe frame is divided into a Probe Request frame (i.e., a Probe Request frame) and a Probe Response frame (i.e., a Probe Response frame). The mobile station will use the Probe Request frame to scan which 802.11 networks are currently in the area. If the network probed by the Probe Request frame is compatible with it, the network will reply with a Probe Response frame.

The VSIE (Vendor-Specific Information Element) is a commonly used Information encapsulation method in the Probe/Beacon frame, for example, the wireless multimedia (WMM) Information is the VSIE of the OUI from microsoft corporation, which can be used to represent the Information extended by a Specific Vendor. The constituent structure of the VSIE is as follows:

TABLE 1

The invention encapsulates the information required by the fast connection into VSIE by a Type-Length-Value ternary data group mode, completes the interaction between the equipment information and the distribution network information between the home gateway and the intelligent terminal equipment through the Probe/Beacon frame, and realizes the fast connection network of the intelligent terminal. The type indicates the category of the ternary data set, the category comprises a command, a device ID, a BSSID, a MAC address, a key, distribution network parameters and data, the length indicates the length of a value in the ternary data set, and the value is actual data. As an example, the Type used by the present invention is defined as follows:

TABLE 2

The original Data is also packaged in a Type-Length-Value form, and the used Data is as follows:

TABLE 3

Fig. 2 is an exemplary flowchart of a smart terminal fast attach method 200 according to an embodiment of the present invention.

The method 200 starts in step 202, and the intelligent terminal encapsulates the terminal information in a Probe Request frame for transmission. According to the IEEE802.11Wi-Fi standard, the smart terminal may actively send Probe Request frames to scan the surrounding networks. The terminal information may be encapsulated within the vsei and added to the transmitted Probe Request frame. The terminal information may include at least information indicating whether the smart device is a first distribution network and a MAC address of the smart device. For example, in the example Type definition given in table 2, Type 1 represents a command, and a value of 0 and a value of 1 may represent a first distribution network and a second distribution network, respectively. Therefore, whether the intelligent terminal is firstly distributed can be judged based on the value in the VSIE encapsulation information in the Probe Request frame from the intelligent terminal. In addition, optionally, the terminal information may further include an ECDH public key of the smart device and a smart device ID.

Table 4 gives an example of the first network distribution request VSIE data (the following data are in hexadecimal form):

TABLE 4

The above VSIE data follows the composition structure of the VSIE as given in table 1 and the Type definition in table 2. In table 4:

"DD" in the first byte is the elementID of VSIE, decimal 221;

"64" in the second byte is Length, which is decimal 100, indicating that the Length of the back is 100 bytes;

"00-11-22" in the third to fifth bytes is an OUI for identifying a vendor (such as telecommunications);

starting with the sixth byte is the Content part.

In table 4, "01" in row 1, column 6, "02" in row 1, column 9, "04" in row 2, column 12, and "05" in row 3, column 4 indicate Type. Line 1, column 6, "01", decimal 1, according to the definition of table 2, indicates Type as Command, followed by "01" to 1 byte in length, followed by "00" to 0, indicating the first distribution network request. Similarly, "02" in row 1, column 9 indicates a Type of DeviceID, 17 bytes in length; line 2, column 12, "04" indicates that Type is MAC, length is 6 bytes, and the value in the following 6 bytes is the MAC address of the smart device. Row 3, column 4 "05" indicates that Type is Key, length is 48 bytes, and the value in the following bytes is the Key exchange information.

In step 204, the home gateway determines whether the intelligent terminal is to be configured for the first time based on the terminal information encapsulated in the received Probe Request frame. The Probe Request frame sent by the intelligent terminal may be received by the surrounding networking terminals, and the networking terminals report the Probe Request frame to the home gateway. As an example, the fast-connect plug-in of the home gateway may enable the VSIE service to decapsulate the information encapsulated by the VSIE in the Probe Request frame, and determine whether the intelligent terminal is configured for the first time based on the specific data encapsulated in the VSIE.

Optionally, the home gateway's fast connect plug-in may listen to the VSIE with the vendor OUI in the Probe Request frame. When the fast-connect plug-in receives the Probe Request frame, the fast-connect plug-in may initiate a VSIE service to decapsulate the information encapsulated with the VSIE in the Probe Request frame and determine whether the OUI of a specific vendor is included therein, e.g., whether the OUI has a telecom OUI. The purpose of this filtering is to identify the correct VSIE information. It can be understood that the fast connection access network of the present invention needs to be implemented by relying on the relevant information encapsulated in the VSIE, and if the OUI indicates other vendors, the subsequent fast connection process cannot be executed continuously, so that no further resource consumption is needed to process.

If it is determined at step 204 that the intelligent terminal is the first time to distribute a network, the method proceeds to step 206 where a message is sent to the user indicating that a device that is not distributed to the network is found to request that the user authorize the distribution of the network for that device. For example, the home gateway may notify the user of finding a new device without network configuration through an APP (e.g., a telecom winglet manager APP) on the user client, ask the user whether to perform automatic network configuration on the new device, and the user may directly give an authorized reply in the APP. As an example, the user client may be at least one of smart terminals already connected to the network, such as a user's smart phone, tablet, smart tv, and so on.

In step 208, in response to receiving the authorization of the user, the home gateway sends the network distribution information for the intelligent terminal to access the network to the network distribution terminal. As one example, the distribution network information may include an SSID, a password, an encryption scheme, key exchange information, etc. of the Wi-Fi network. If the user is not authorized, the process ends.

Next, in step 210, the home gateway encapsulates the distribution network information in a Beacon frame and sends the Beacon frame to the intelligent terminal. Optionally, the distribution network information may be encrypted and then encapsulated into the Beacon frame. As mentioned earlier, the distribution network information is encapsulated in Beacon frames by the VSIE for transmission.

Table 5 gives an example of the response vsei data in Beacon (the following data are in hexadecimal):

	00	01	02	03	04	05	06	07	08	09	0A	0B	0C	0D	0E	0F
																	00	DD	72	00	11	22	01	01	80	04	06	04	8D	38	04	05	06
10	05	30	CB	2E	63	46	5A	6A	8F	E1	C2	3D	03	54	23	E2
																	20	FF	30	09	0A	0B	0C	0D	0E	0F	10	32	30	13	14	15	16
30	17	18	19	1A	1B	1C	1D	1E	1F	20	21	22	43	06	04	8D
																	40	38	36	FF	30	53	22	A2	6E	62	47	2A	65	8F	E1	C2	3D
50	33	2D	5E	42	53	C7	DA	4E	66	42	58	98	21	22	43	06
																	60	53	22	A2	6E	62	47	53	22	A2	6E	62	47	42	58	98	21
70	36	78	A8	53

TABLE 5

The above VSIE data also follows the composition structure of the VSIE as given in Table 1 and the Type definition in Table 2. In table 4:

"DD" in the first byte is the elementID of VSIE, decimal 221;

"72" in the second byte is Length, decimal 114, indicating that the Length of the following is 114 bytes;

"00-11-22" in the third through fifth bytes is an OUI for identifying a vendor (such as telecommunications), where it can be seen that the OUI is consistent with the OUI in the Probe Request;

starting with the sixth byte is the Content part.

In table 5, "01" in row 1, column 6, "04" in row 1, column 9, "05" in row 2, column 1, and "FF" in row 5, column 3 indicate Type. Line 1, column 6, "01", decimal 1, according to the definition in table 2, indicates Type as Command, followed by "01" as 1 byte in length, followed by "80" as 128, indicating the first distribution network reply. Similarly, "04" in line 1, column 9 indicates that Type is MAC, length 6 bytes, indicates MAC address of the smart terminal; "05" in row 2 and column 1 indicates that Type is Key, length is 48 bytes, and then the value in 6 bytes is Key information (used in case of encrypting distribution network information). The "FF" on line 5, column 3, i.e. 255 decimal, indicates that Type is Data, length is 48 bytes, and the value in the following bytes is distribution network information.

In step 212, the intelligent terminal accesses the network based on the distribution network information encapsulated in the received Beacon frame. As an example, the intelligent terminal filters the received Beacon frame according to the OUI in the VSIE data, and the intelligent terminal determines whether the Beacon frame is sent to itself according to the MAC address included in the Beacon frame. If yes, the intelligent terminal can obtain the distribution network information such as the SSID, the password and the encryption mode of the Wi-Fi network encapsulated in the VSIE, and then the distribution network information is used for accessing the Wi-Fi network.

Returning to step 204, if it is determined that the intelligent terminal is not the first distribution network, the method proceeds to step 214, where the intelligent terminal is reconnected to the network. As an example, reconnecting the smart terminal to the network may include notifying the smart terminal of an attempt to access the network with the original network information in the case where the smart terminal was once connected to the home gateway before confirming the smart terminal. And under the condition that the network password is modified, the home gateway can also send the new distribution network information to the intelligent terminal in the original mode, so that the intelligent terminal can be quickly reconnected to the network. Alternatively, a special reconnection networking operation may not be performed, and the first networking process described above may be performed again by the smart terminal, or networking may be performed in a conventional manner.

The method for the intelligent device to access the network quickly has the following advantages compared with the prior art:

(1) for the probe capability of the intelligent terminal without a distribution network, even if the equipment without the distribution network is not provided, the equipment can be detected and positioned;

(2) the capability of a user to sense the network is realized, the user automatically discovers the equipment, and the equipment can configure the access network without inputting an account number and a password for one-key authorization;

(3) scanning a Wi-Fi network through a Probe Request frame of an intelligent terminal, returning a Beacon frame by AP equipment such as a router and the like, finishing the interaction of information of the intelligent terminal equipment and distribution network information of the AP equipment such as the router and the like, and finishing the distribution network at the highest speed by only needing a small amount of message interaction;

(4) after the current Wi-Fi network access parameters are changed, the networked equipment automatically reconfigures the network capability without secondary operation;

(5) the intelligent terminal actively initiates a distribution network request to realize automatic discovery of the equipment to be distributed, so that a user can select to authorize the equipment to distribute the network;

(6) the equipment information is verified through the interaction process of the Probe Request frame and the Beacon frame, rather than through the Wi-Fi frame broadcast information, so that the accuracy and the safety of the equipment to be networked are guaranteed;

(7) and the equipment is supported to be disconnected from the network, the network is changed to be dense, and the network is automatically reconnected again, so that the stability of the network connection of the intelligent terminal is realized.

What has been described above includes examples of aspects of the claimed subject matter. It is, of course, not possible to describe every conceivable combination of components or methodologies for purposes of describing the claimed subject matter, but one of ordinary skill in the art may recognize that many further combinations and permutations of the claimed subject matter are possible. Accordingly, the disclosed subject matter is intended to embrace all such alterations, modifications and variations that fall within the spirit and scope of the appended claims.

Claims

1. A method for a smart terminal to access a network quickly based on an IEEE802.11 protocol is characterized by comprising the following steps:

2. The method of claim 1, wherein the smart terminal encapsulates the terminal information in a Probe Request frame through Vendor Specific Information Element (VSIE), and the home gateway encapsulates the distribution network information in a Beacon frame through VSIE.

3. The method of claim 2, wherein the method further comprises:

4. The method of claim 2, wherein the terminal information further includes a MAC address of the smart terminal, and the Beacon frame sent by the home gateway to the smart terminal includes the MAC address of the smart terminal, and the smart terminal determines whether the Beacon frame is sent to itself according to the MAC address included in the Beacon frame.

5. The method of claim 2, wherein the information in the VSIE is encapsulated in a type-length-value ternary data set, wherein a type indicates a category of the ternary data set, the category includes a command, a device ID, a BSSID, a MAC address, a key, distribution network parameters, and data, a length indicates a length of a value in the ternary data set, and the value is actual data.

6. The method of claim 5, wherein values of type "data" are also represented in a "type-length-value" ternary data set.

7. The method of claim 1, wherein the distribution network information comprises at least an SSID and a password of the network.

8. The method of claim 1, wherein sending a message to a user indicating that a device that is not configured for a network is found to request the user to authorize performing network distribution for the device further comprises:

the application program sends the reply to the home gateway.

9. A home networking system based on IEEE802.11 protocol, the system comprising:

a home gateway;

one or more networking terminals connected to the home gateway; and

10. The system of claim 9, wherein sending a message to a user indicating that a device that is not configured for a network is found to request that the user authorize performing network distribution for the device further comprises:

the application program sends the reply to the home gateway.