CN103916839B - The method and apparatus of issuing service information - Google Patents

Abstract

The invention provides a method and equipment for distributing service information. The first device acquires service information publishing capability indication information from the second device; the first device sends a registration service information request message to the second device, and the registration service information request message includes the service of the first device information, so that the second device registers and notifies the third device of the service information. By adopting the method and device for publishing service information provided by the present invention, the publishing of service information can be realized.

Description

Method and device for publishing service information

technical field

The present invention relates to mobile communication technology, in particular to a method and device for publishing service information.

Background technique

Wireless Fidelity (WiFi for short) technology has achieved rapid development due to its advantages of fast deployment, convenient use, and high transmission rate. Devices such as notebook computers, PDAs (Personal Digital Assistant, PDA for short) and mobile phones all support WiFi technology. WiFi technology is widely used in various industries. Access Points (AP for short) of WiFi networks are located in hotels, cafes, schools, hospitals and other places.

Currently, in a WiFi network, there is a situation where one AP is used to serve multiple devices. For example: a scanner is connected to an AP as a device, and the AP informs other devices in the WiFi network that this AP can provide scanning services; at the same time, multiple other devices such as printers can also be connected to the AP. In the above situation, because the AP needs to serve multiple devices, each device needs to perform processes such as discovery, authentication, and association with the AP, so that there is a connection and trust relationship between the device and the AP. In the existing association process, the device carries its own device type in the association request message and sends it to the AP, so as to register the device information in the AP, and then the AP publishes the device information to other devices.

In the process of realizing the present invention, the inventor found that the above-mentioned existing information release method can only realize the registration and release of device information, that is, only the names of printers, scanners, monitors and other devices can be registered and released. The information registered and released by the above-mentioned existing information publishing methods is limited and cannot meet more demands.

Contents of the invention

Embodiments of the present invention provide a method and device for distributing service information, which are used to solve the defects in the prior art and realize the dissemination of service information.

In the first aspect, a method for publishing service information is provided, including:

The first device acquires service information publishing capability indication information from the second device;

The first device sends a registration service information request message to the second device, and the registration service information request message includes the service information of the first device, so that the second device registers and notifies the third device The service information will be described.

In a first possible implementation manner, the service information includes:

Service name, and/or, service summary information, and/or, device name, and/or, device address information, and/or, service duration.

With reference to the first possible implementation of the first aspect, in a second possible implementation, the service information further includes:

Service release start time, and/or, service release end time, and/or, service release duration.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a third possible implementation manner, the acquisition by the first device of the service information publication capability indication information from the second device includes:

The first device receives the broadcast frame carrying the service information publishing capability indication information broadcast by the second device;

And/or, the first device sends a service information publishing capability query request frame to the second device and receives a service information publishing capability query response frame carrying the service information publishing capability indication information returned by the second device;

And/or, the first device sends a general query request frame to the second device and receives a general query response frame that carries the service information publishing capability indication information returned by the second device.

With reference to the first aspect or any one of the first to third possible implementations of the first aspect, in a fourth possible implementation, before the first device sends the registration service information request message to the second device ,Also includes:

The first device confirms with the second device the authority to publish service information.

With reference to the fourth possible implementation manner of the first aspect, in a fifth possible implementation manner, the confirming the right of publishing service information by the first device and the second device includes:

The first device sends to the second device authentication code information obtained through pre-authorization or through a cellular communication network, so that the second device confirms that the first device is capable of publishing service information according to the authentication code information permission.

With reference to the first aspect or any one of the first to fifth possible implementations of the first aspect, in a sixth possible implementation, the second device notifies the third device of the service Information includes:

The second device broadcasts a broadcast frame carrying the service information;

And/or, the second device receives a service information query request frame for subscribing to the service information from the third device and returns a service information query response frame carrying the service information;

And/or, the second device receives a general query request frame from the third device and returns a general query response frame carrying the service information;

And/or, the second device sends a message frame carrying the service information to the third device according to the received service information subscription request message from the third device for subscribing to the service information.

In the second aspect, a method for publishing service information is provided, including:

The second device sends service information publishing capability indication information to the first device;

The second device receives a registration service information request message from the first device, and the registration service information request message includes the service information of the first device;

The second device registers the service information of the first device;

The second device notifies the third device of the service information.

In a first possible implementation manner, the service information includes:

Service name, and/or, service summary information, and/or, device name, and/or, device address information, and/or, service duration.

With reference to the first possible implementation manner of the second aspect, in a second possible implementation manner, the service information further includes:

Service release start time, and/or, service release end time, and/or, service release duration.

With reference to the second aspect or the first or second possible implementation manner of the second aspect, in a third possible implementation manner, the sending of the service information publication capability indication information by the second device to the first device includes:

The second device broadcasts a broadcast frame carrying the service information publishing capability indication information;

And/or, the second device receives a service information publishing capability query request frame from the first device and returns a service information publishing capability query response frame carrying the service information publishing capability indication information;

And/or, the second device receives the general query request frame from the first device and returns a general query response frame carrying the service information publishing capability indication information.

With reference to the second aspect or any one of the first to third possible implementation manners of the second aspect, in a fourth possible implementation manner, the second device notifies the third device that the service information includes :

The second device broadcasts a broadcast frame carrying the service information;

And/or, the second device receives a service information query request frame for subscribing to the service information from the third device and returns a service information query response frame carrying the service information;

And/or, the second device receives a general query request frame from the third device and returns a general query response frame carrying the service information;

And/or, the second device sends a message frame carrying the service information to the third device according to the received service information subscription request message from the third device for subscribing to the service information.

With reference to the second aspect or any one of the first to four possible implementations of the second aspect, in a fifth possible implementation, the second device receives the registration service information request message from the first device Previously, also included:

The second device confirms with the first device the authority to publish service information.

With reference to the fifth possible implementation manner of the second aspect, in a sixth possible implementation manner, the second device confirming with the first device the right to publish service information includes:

The second device receives authentication code information obtained from the first device through pre-authorization or through a cellular communication network, and confirms that the first device has the authority to publish service information according to the authentication code information;

And/or, the second device adjusts the power so that the second device only covers a set area that is allowed to publish service information.

In a third aspect, a device is provided, the device is a first device, including:

a receiver, configured to acquire service information publishing capability indication information from the second device;

a sender, configured to send a registration service information request message to the second device, where the registration service information request message includes the service information of the first device, so that the second device registers and notifies the third device The service information will be described.

In a first possible implementation manner, the service information includes:

Service name, and/or, service summary information, and/or, device name, and/or, device address information, and/or, service duration.

With reference to the first possible implementation manner of the third aspect, in a second possible implementation manner, the service information further includes:

Service release start time, and/or, service release end time, and/or, service release duration.

In combination with the third aspect or the first or second possible implementation of the third aspect, in the third possible implementation,

The receiver is specifically configured to receive a broadcast frame carrying the service information publishing capability indication information broadcast by the second device;

And/or, the transmitter is further configured to send a service information publishing capability query request frame to the second device, and the receiver is specifically configured to receive the service information publishing capability indication information returned by the second device The service information release capability query response frame;

And/or, the transmitter is further configured to send a general query request frame to the second device, and the receiver is specifically configured to receive the general query that carries the service information publishing capability indication information returned by the second device Acknowledgment frame.

In combination with the third aspect or any one of the first to third possible implementation manners of the third aspect, in a fourth possible implementation manner,

The transmitter is further configured to confirm with the second device the authority to publish service information.

In combination with the fourth possible implementation of the third aspect, in the fifth possible implementation,

The transmitter is specifically configured to send to the second device authentication code information obtained through a pre-authorization method or through a cellular communication network, so that the second device confirms that the first device is capable of issuing Access to Service Information.

In a fourth aspect, a device is provided, the device is a second device, including:

a receiver, configured to receive a registration service information request message from the first device, where the registration service information request message includes service information of the first device;

a transmitter, configured to send service information publishing capability indication information to the first device and notify a third device of the service information;

A processor, configured to register the service information.

In a first possible implementation manner, the service information includes:

Service name, and/or, service summary information, and/or, device name, and/or, device address information, and/or, service duration.

With reference to the first possible implementation manner of the fourth aspect, in a second possible implementation manner, the service information further includes:

Service release start time, and/or, service release end time, and/or, service release duration.

With reference to the fourth aspect or the first or second possible implementation manner of the fourth aspect, in a third possible implementation manner, the transmitter is specifically configured to broadcast a broadcast frame carrying the service information publishing capability indication information;

And/or, the receiver is specifically configured to receive a service information publishing capability query request frame from the first device, and the transmitter is specifically configured to return information carrying the service information publishing capability indication to the first device The service information release capability query response frame;

And/or, the receiver is specifically configured to receive a general query request frame from the first device, and the transmitter is specifically configured to return the general query carrying the service information publishing capability indication information to the first device Acknowledgment frame.

In combination with the fourth aspect or any one of the first to third possible implementation manners of the fourth aspect, in the fourth possible implementation manner,

The transmitter is specifically configured to broadcast a broadcast frame carrying the service information;

And/or, the receiver is further configured to receive a service information query request frame for subscribing to the service information from the third device, and the transmitter is specifically configured to return a service information query response frame carrying the service information ;

And/or, the receiver is further configured to receive a general query request frame from the third device, and the transmitter is specifically configured to return a general query response frame carrying the service information;

And/or, the receiver is further configured to receive a service information subscription request message from the third device for subscribing to the service information, and the sender is specifically configured to send a message carrying the service information to the third device message frame.

In combination with the fourth aspect or any one of the first to four possible implementations of the fourth aspect, in a fifth possible implementation,

The receiver and the processor are further configured to confirm with the first device the authority to publish service information.

In combination with the fifth possible implementation of the fourth aspect, in the sixth possible implementation,

The receiver is specifically configured to receive authentication code information obtained from the first device in a pre-authorized manner or through a cellular communication network, and the processor is specifically configured to confirm that the first device has The authority to publish service information;

And/or, the processor is specifically configured to adjust the power of the second device, so that the second device only covers a set area that is allowed to publish service information.

It can be seen from the content of the above invention that the first device sends a registration service information request message to the second device, and the registration service information request message carries the service information of the first device, so that the second device registers the service information of the first device, And release the service information to the third device, so as to realize the release of the service information.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a flowchart of a method for publishing service information in Embodiment 1 of the present invention;

FIG. 2 is a flowchart of a method for publishing service information according to Embodiment 2 of the present invention;

FIG. 3 is a signaling flowchart of a method for publishing service information according to Embodiment 3 of the present invention;

FIG. 4 is a schematic diagram of an information element structure of service information release capability indication information according to Embodiment 3 of the present invention;

FIG. 5 is a schematic structural diagram of information elements related to service information in Embodiment 3 of the present invention;

FIG. 6 is a schematic diagram of a first structure of information elements related to registration service information responses according to Embodiment 3 of the present invention;

FIG. 7 is a schematic diagram of a second structure of information elements related to registration service information responses according to Embodiment 3 of the present invention;

8 is a schematic structural diagram of information elements related to service information notified to the first STA according to Embodiment 3 of the present invention;

FIG. 9 is a schematic structural diagram of a first device according to Embodiment 4 of the present invention;

FIG. 10 is a schematic structural diagram of a second device according to Embodiment 5 of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The method for publishing service information of the present invention is used for the first device to register the service information running on the first device with the second device, and the second device releases the service information running on the first device to the third device. For example, the first station (Station, STA for short) registers the service information of the STA with the AP, and the AP publishes the service information of the first STA to the second STA; another example, the first STA registers the service information of the first STA with the second STA information, the second STA publishes the service information of the first STA to the third STA; it may also include any other situation of registration between two devices. In each of the following embodiments of the present invention, the first device may be an STA, the second device may be an AP, and the third device may be another STA, but they are not limited to this situation.

FIG. 1 is a flowchart of a method for publishing service information according to Embodiment 1 of the present invention. As shown in Figure 1, the method includes the following processes.

Step 100: the first device acquires service information publishing capability indication information from the second device.

In this step, specifically, the service information publishing capability indication information is used to inform the device receiving the information that the device sending the information has the service information publishing capability.

In the embodiments of the present invention and the following embodiments, the service information of a device may include services provided by the device itself or user-related functions carried by the device. The services provided by the device itself, such as: printing function, fax function, etc.; the functions related to the user carried by the device, such as: user name, user ID information, or game information that the user is currently running, etc.

Step 101: the first device sends a registration service information request message to the second device.

In this step, the first device sends a registration service information request message to the second device, and the registration service information request message includes the service information of the first device. Specifically, the service information may include any one or a combination of several of the following information: service name, service summary information, device name, device address information, and service duration. On this basis, further, the The service information may also include any one or a combination of several of the following information: service release start time, service release end time, and service release duration. The first device sends a registration service information request message to the second device, so that the second device registers and notifies the third device of the service information. Specifically, the service information registered by the second device and notified to the third device includes the service information of the first device.

In Embodiment 1 of the present invention, the first device sends a registration service information request message to the second device, and the registration service information request message carries the service information of the first device, so that the second device registers the service information, and The service information is released to the third device, so as to realize the registration and release of the service information.

FIG. 2 is a flowchart of a method for publishing service information according to Embodiment 2 of the present invention. As shown in Figure 2, the method includes the following processes.

Step 200: the second device sends service information publishing capability indication information to the first device.

In this step, specifically, the service information publishing capability indication information is used to inform the device receiving the information that the device sending the information has the service information publishing capability.

Step 201: the second device receives a registration service information request message from the first device.

In this step, the second device receives a registration service information request message from the first device, and the registration service information request message includes the service information of the first device. Specifically, the service information may include any one or a combination of several of the following information: service name, service summary information, device name, device address information, and service duration. On this basis, further, the The service information may also include any one or a combination of several of the following information: service release start time, service release end time, and service release duration.

Step 202: The second device registers the service information.

In this step, specifically, the second device registers the service information, where the service information includes the service information of the first device.

Step 203: the second device notifies the third device of the service information.

In this step, specifically, the second device notifies the third device of the service information, where the service information includes the service information of the first device.

In Embodiment 2 of the present invention, the second device receives the registration service information request message sent by the first device, and the registration service information request message carries the service information of the first device, and the second device obtains and registers the first device according to the request message. Service information of a device, and release the service information to a third device, so as to realize the registration and release of service information.

FIG. 3 is a signaling flowchart of a method for publishing service information according to Embodiment 3 of the present invention. In this embodiment of the present invention, only the process in which the first STA registers service information with the AP, and then the AP notifies the second STA of the service information of the first STA is taken as an example, wherein the first STA corresponds to the above-mentioned Embodiment 1 and The first device in the second embodiment, the AP corresponds to the second device in the first and second embodiments of the present invention, and the second STA corresponds to the third device in the first and second embodiments of the present invention. As shown in Figure 3, the method includes the following processes.

Step 301: The AP sends service information publishing capability indication information to the first STA.

In this step, the AP sends the service information publishing capability indication information to the first STA, and accordingly, the first STA acquires the service information publishing capability indication information from the AP. Specifically, any one or a combination of several of the following two ways may be used to implement this step. Mode 1, the AP carries the service information publishing capability indication information into a broadcast frame, the AP broadcasts the broadcast frame carrying the service information publishing capability indication information, and the STA receives the broadcast carrying the service information publishing capability indication information broadcast by the AP frame, and obtain the service information publishing capability indication information from the broadcast frame. Wherein, the broadcast frame may be a beacon frame (beacon for short). In each embodiment of the present invention, the AP may periodically broadcast the broadcast frame carrying the service information publishing capability indication information, or broadcast the broadcast frame carrying the service information publishing capability indication information aperiodically. Method 2: The first STA sends a service information release capability query request frame to the AP, and the AP carries the service information release capability indication information into the service information release capability query response frame, and the AP returns to the first STA a frame carrying the service information release capability. The service information publishing capability query response frame of the capability indication information, the STA receives the service information publishing capability query response frame carrying the service information publishing capability indication information returned by the AP, and obtains the service information from the service information publishing capability query response frame Publish capability indication information. Specifically, the service information release capability query request frame may be a probe request frame (proberequest for short) or a generic advertisement service initial request frame (Generic Advertisement Service initial request, GAS initial request for short), and the service information release capability query response frame may be a probe request frame. Response frame (referred to as probe response) or generic advertisement service initial response frame (GenericAdvertisement Service initial response, referred to as GAS initialresponse). Method 3: The first STA sends a general query request frame to the AP, and the AP carries all kinds of information that can be returned to the first STA into a general query response frame and returns it to the first STA. The service information publishing capability indication information, that is, the AP returns to the first STA a general query response frame carrying the service information publishing capability indication information, and the STA receives the general query response frame carrying the service information publishing capability indication information returned by the AP , acquiring the service information publishing capability indication information from the general query response frame.

In this step, the service information release capability indication information may be implemented by using one or more bits, or may be implemented by using one information element. Take the implementation of information elements as an example. FIG. 4 is a schematic diagram of an information element structure of service information publishing capability indication information according to Embodiment 3 of the present invention. As shown in FIG. 4 , the information element may include: an information element identifier (identity, ID for short), an information element length, and a service information publishing capability indication (ServiceInfoCapa for short). Wherein, the ID of the information element is the ID number of the information element, which is uniformly numbered by the 802.11 standard, and uniquely identifies the information element in the standard. The information element length is the length of the information element, indicating the length of the information element except for the information element identifier and the information element length. In the information element in this embodiment of the present invention, the value of the length of the information element may be 1. The service information publishing capability indication is used to indicate whether the AP supports the capability of service registration. A specific implementation manner is that the above-mentioned information element identifier, information element length, and service information publishing capability indication all occupy one byte. When the byte indicated by the service information publishing capability is the first value, it means that the AP has the ability to support service registration; when the byte indicated by the service information publishing capability is other than the first value, it means that the AP does not support Ability to service registry. Another specific implementation manner is that the above-mentioned information element identifier and information element length each occupy one byte, and the service information publishing capability indication occupies one bit. When the bit indicated by the service information publishing capability is the first value, it means that the AP has the ability to support service registration; when the bit indicated by the service information publishing capability is the second value, it means that the AP does not have the ability to support service registration . For example, when the bit is 1, it indicates that the AP has the ability to support service registration; when the bit is 0, it indicates that the AP does not have the ability to support service registration. Only 1 bit in this byte is used to indicate the service information distribution capability indication, and the other 7 bits of this byte are reserved. In other implementation manners, the information element may also adopt other structures. Another specific implementation manner is that sending the information element indicates that the AP has the ability to support service registration, and not sending the information element indicates that the AP does not have the ability to support service registration. In each of the above specific implementation manners, the information element may be included in a broadcast frame, or in a service information publishing capability inquiry response frame, or in any other message frame.

Step 301 is an optional step in the embodiment of the present invention. If some APs in the WiFi system have the ability to register service information, while other APs do not have the ability to register service information, step 301 can be performed first, and through step 301, each STA is notified whether each AP has the ability to register service information. If all the APs in the WiFi system have the capability of registering service information, step 301 may not be performed, and subsequent steps may be directly performed. In other implementations, the AP name can also be used to reflect whether it has the ability to register service information, so that when each STA learns a certain AP name, it can know whether the AP has the ability to register service information, so there is no need to perform steps 301.

Step 302: The first STA confirms with the AP the authority to publish service information.

Step 302 is an optional step in the embodiment of the present invention. Because the process of registering service information in the embodiment of the present invention can be performed before the process of associating the existing first STA with the AP, or after the process of associating the existing first STA with the AP. The process of associating the first STA with the AP includes the authority confirmation process of publishing service information between the first STA and the AP. Therefore, for the implementation of the present invention after the existing process of associating the first STA with the AP In the case of the process of registering service information in the example, step 302 may not be performed, and subsequent steps may be directly performed. For the case where the process of registering service information of the embodiment of the present invention is performed before the process of associating the existing first STA with the AP, in order to improve security, step 302 can be performed first, and after the authorization of issuing service information is confirmed, then Follow the next steps. The purpose of the permission confirmation process for publishing service information is to prevent someone from continuously registering and broadcasting their own service information, resulting in waste of system resources and bringing false information to others. Therefore, a permission to publish service information is required The validation process provides service security. For the case where the process of registering service information in the embodiment of the present invention is performed before the existing process of associating the first STA with the AP, if the security requirements are not high, or if it is confirmed that the current WiFi system as a whole is safe, it may not Step 302 is executed, and subsequent steps are directly executed.

Specifically, the authority confirmation process for publishing service information in step 302 can be implemented in a variety of specific ways, and the following three ways are only described as examples. In practical applications, it is not limited to the following three ways. The specific implementation manners for realizing the authority confirmation of publishing service information can be adopted.

Mode 1, the first STA first obtains the authentication code information through the cellular communication network, the first STA sends the authentication code information obtained through the cellular communication network to the AP, and the AP confirms that the first STA is capable of publishing service information according to the authentication code information authority, that is, the first STA is safe. Specifically, the above-mentioned cellular communication network may be a commonly used mobile phone network, such as a Global System of Mobile communication (Global System of Mobile communication, GSM for short) network, a third-generation mobile communication technology (3rd-generation, 3G for short) network, etc., the first STA Apply for the service of registering service information to the operator of the above-mentioned cellular communication network in advance, obtain an authentication code information through the cellular communication network, when the first STA needs to register its own service information, the first STA sends its own authentication code information to the AP . In each embodiment of the present invention, the authentication code information can be sent in plain text, and the authentication code information is the authentication code itself, and the first STA directly sends the authentication code to the AP; the authentication code information can also be sent in cipher text, and the authentication The code information is a value after a preset operation is performed on the authentication code, for example, a hash operation is performed on the authentication code, the authentication code information is a hash value of the authentication code, and the first STA sends the hash value of the authentication code to the AP. For the authentication code information sent in clear text, the AP side pre-stores the above-mentioned authentication code indicating that service information registration is allowed. After receiving the authentication code sent by the first STA, combine the authentication code sent by the first STA with the pre-stored The authentication codes are checked, and when the authentication codes are consistent, the AP knows that the first STA is trustworthy, thereby confirming that the first STA is safe, that is, the first STA has the authority to publish service information. For the authentication code information sent in ciphertext, the above-mentioned authentication code indicating that service information registration is allowed can be stored in advance on the AP side. When the AP receives the value after the preset operation of the authentication code sent by the first STA, it performs the inverse operation of the preset operation on the value to obtain the authentication code sent by the first STA, and compares the authentication code sent by the first STA with the AP The pre-stored authentication codes are checked, and when the authentication codes are consistent, the AP knows that the first STA is trustworthy, thereby confirming that the first STA is safe, that is, the first STA has the authority to publish service information. Or, after the AP receives the value after the preset calculation of the authentication code sent by the first STA, it performs the preset calculation on the authentication code stored in the AP to obtain the value after the preset calculation of the authentication code stored in the AP. The value of the authentication code sent by the first STA after the preset calculation is checked with the value of the authentication code stored in advance by the AP after the preset calculation. When the above two values are consistent, the AP knows that the first STA is credible, and thus Confirm that the first STA is safe, that is, the first STA has the authority to publish service information.

The second way is to restrict specific areas through pre-authorization. For example, an AP is deployed in a cafe, and the AP only performs service registration for STAs in the cafe. The authentication code information can be provided to the person using the STA in the cafe through pre-authorization. For example, after a customer using an STA enters a cafe, a card printed with authentication code information is issued to the customer, and the customer uses the first STA to send the authentication code information obtained through pre-authorization to the AP, that is, the card is printed with the authentication code information. Authentication code information, the AP confirms that the first STA is safe according to the authentication code information. In each embodiment of the present invention, the authentication code information can be the authentication code itself, or a value obtained by performing a preset operation on the authentication code, and the corresponding verification method is as described in the above-mentioned method 1, and will not be repeated here. .

The third way is to restrict the specific area by adjusting the coverage of the AP, so that the AP only covers the set area where service information is allowed to be published. The set area where service information is allowed to be released is called a security area. By adjusting the power of the AP, the AP only covers the security area, so that only STAs in the security area can discover the AP and register with the AP. For example, an AP is deployed in a cafe, and the AP only performs service registration for STAs in the cafe. The power of the AP can be adjusted so that the AP only covers the area within the cafe. Therefore, only the STAs used by people entering the cafe can discover the AP, thus playing the role of authority confirmation for publishing service information.

Step 303: the first STA sends a registration service information request message to the AP.

In this step, the first STA sends a registration service information request message to the AP, and the registration service information request message includes the service information of the first STA, wherein the service information may include any of the following information Or a combination of several: service name, service summary information, device name, device address information, service duration, on this basis, further, the service information can also include any one or several of the following information A combination of: service release start time, service release end time, service release duration.

Specifically, the registration service information request message adopts an agreed frame structure. A communication interface can be pre-agreed between the first STA and the AP. For example, it is pre-agreed that the AP can accept a frame of registration service information at a certain time, and the first STA will carry the The frame of the service information of the first STA is sent to the AP, and the frame carrying the service information of the first STA is a registration service information request message. The registration service information request message may adopt an improved existing message, and add information elements related to service information to the existing message; or add a new message during the communication process, and the message includes information elements related to service information, This message is used as the registration service information request message.

A specific implementation manner of including information elements related to service information in the above message is introduced below. FIG. 5 is a schematic structural diagram of information elements related to service information according to Embodiment 3 of the present invention. This structure is only a specific implementation manner of the information element, and other specific implementation manners may also be used in practical applications. As shown in Figure 5, the information element includes: information element identifier, information element length, service release start time (referred to as StartTime), service release end time (abbreviated as EndTime), and service name (abbreviated as ServiceName). Among them, a specific implementation method is that the information element identifier and the length of the information element each occupy 1 byte, the service release start time and the service release end time each occupy 4 bytes, and the service name occupies n bytes, and the value of n can be Set flexibly according to the actual situation. Wherein, the service name may also be one or a combination of several of the following information: service summary information, device name, device address information, and service duration. The service release start time or the service release end time may also be the service release duration.

Specifically, the service name may be a specific name of the service, and may also be indication information of the name of the service, for example, a category or number corresponding to the service. Correspondingly, if the service name is the indication information of the name of the service, then in the AP and the second STA, the corresponding relationship between the specific name of the service and the indication information is preset, for example, the category is preset in the AP and the second STA Or the corresponding relationship between the number and the specific name of the service.

Service release requirements can be reflected through the service release start time and service release end time. Specifically, the service publishing start time and the service publishing end time constitute a time period, and the time period indicates the time of the service publishing, indicating that within this time period, the AP can publish the service information corresponding to the service name provided by the first STA . The time period composed of the service release start time and the service release end time can reflect whether the service is a newly registered service or an already registered service whose release time needs to be adjusted. For example, if the service name is the same as that registered by the AP, and the time period composed of the service publishing start time and the service publishing end time is a new time period, which has not been registered in the AP before, it means that this is a new time period. Newly registered service; if the service name is the same as that registered by the AP, and the service release start time is the same as the registered service release start time, and the service release end time is later than the registered service release end time, it means that this needs to be extended The registered service at the release time; if the service name is the same as that registered by the AP, and the service release start time is consistent with the registered service release start time, and the service release end time is earlier than the registered service release end time, it means this Is a registered service that needs to shorten the release time.

Specifically, the values of the service release start time and the service release end time are calculated after the clocks of the STA and the AP are synchronized. For example, the service publishing start time means telling the AP to start notifying the service information to the second STA after the time length indicated by the value of the service publishing start time, and then stop after passing the time length indicated by the value of the service publishing end time. Notify the service information to the second STA. The service publication end time can be calculated from the time indicated by the service publication start time, or can be calculated from the time when the registration service information request message is sent, as long as the AP and the first STA agree uniformly, it can be calculated according to the same calculation method. The present invention does not limit the manner in which the first STA and the AP synchronize, and any manner that can realize the synchronization between the STA and the AP is applicable. Wherein, a specific implementation manner is that the first STA wakes up to receive the broadcast frame broadcast by the AP, and the broadcast frame carries the time information of the AP, wherein the first STA may wake up periodically to receive the broadcast frame periodically broadcast by the AP. broadcast frame, the first STA can also wake up aperiodically to receive broadcast frames broadcast aperiodically by the AP, and each time the first STA receives the broadcast, it sets its own local time to be the same as the AP time, thereby realizing Time synchronization between the first STA and the AP. Wherein, the broadcast frame may be a beacon frame (beacon for short).

The above describes the implementation of including information elements related to the service information in the message. In other implementations, a special message may also be used to carry the service information. If a special message is used to carry service information, the message does not have to include the ID of the information element and the length of the information element shown in Figure 5, but a special message header structure is used to replace the ID of the information element and the length of the information element shown in Figure 5. length. After the message header structure, content such as service release start time, service release end time, and service name are included. Wherein, the service name may also be one or a combination of several of the following information: service summary information, device name, device address information, and service duration. The service release start time or the service release end time may also be the service release duration.

Step 304: The AP registers the service information of the first STA.

In this step, after receiving the registration service information request message sent by the first STA, the AP stores the service information in the message, thereby registering the service information of the first STA.

Step 305: The AP sends a registration service information response message to the first STA.

In this step, the AP sends a registration service information response message to the first STA, and the response message includes at least: the registration result, that is, the information indicating that the current registration is successful or the current registration fails, and further, the following information may also be included One or a combination of several: service name, service summary information, device name, device address information, service duration, service release start time, service release end time, and service release duration.

Specifically, the registration service information response message can adopt an improved existing message, and add information elements related to the registration service information response to the existing message; or add a new message during the communication process, and the message includes The related information elements of the information response, take this message as the registration service information response message.

A specific implementation manner of including information elements related to the registration service information response in the above message is introduced below. FIG. 6 is a schematic diagram of a first structure of information elements related to registration service information responses according to Embodiment 3 of the present invention. This structure is only a specific implementation manner of the information element, and other specific implementation manners may also be used in practical applications. As shown in Figure 6, the information element includes: information element identification (referred to as Elenment ID), information element length (abbreviated as Length), service publishing start time (referred to as StartTime), service publishing end time (referred to as EndTime), service name ( ServiceName for short) and registration result (Result for short). Among them, a specific implementation method is that the information element identifier and the length of the information element each occupy 1 byte, the service release start time and the service release end time each occupy 4 bytes, and the service name occupies n bytes, and the value of n can be It can be flexibly set according to the actual situation, and the registration result occupies 1 byte. One byte of the registration result carries information indicating whether the registration is successful or not, so that the first STA can know the execution result of the AP. Among the above information elements of the registration service information response message, the service release start time, service release end time and service name are all contents in the copy registration service information request message. Wherein, the service name may also be one or a combination of several of the following information: service summary information, device name, device address information, and service duration. The service release start time or the service release end time may also be the service release duration.

Another specific implementation manner of including information elements related to the registration service information response in the above message is introduced below. FIG. 7 is a schematic diagram of a second structure of information elements related to registration service information responses according to Embodiment 3 of the present invention. This structure is only a specific implementation manner of the information element, and other specific implementation manners may also be used in practical applications. As shown in FIG. 7 , the information element includes: an information element identifier (referred to as Elenment ID), an information element length (referred to as Length) and a registration result (referred to as Result). Wherein, a specific implementation manner is that the ID of the information element and the length of the information element each occupy 1 byte, and the registration result occupies 1 byte. One byte of the registration result carries information indicating whether the registration is successful or not, so that the first STA can know the execution result of the AP.

Step 305 is an optional step in the embodiment of the present invention. After the first STA sends a registration service information request message to the AP, it defaults that the AP registration is successful, so that step 305 does not need to be performed, and the AP does not need to return a registration service information response message to the first STA, and directly performs subsequent steps.

Step 306: The AP notifies the second STA of the service information of the first STA.

In this step, after registering the service information of the first STA, the AP notifies the second STA of the service information of the first STA. Specifically, an implementation manner in which the AP notifies the second STA of the service information of the first STA may adopt any one or a combination of several of the following three implementation manners. Mode 1: The AP broadcasts a broadcast frame carrying the service information of the first STA, and the second AP receives the broadcast frame carrying the service information of the first STA broadcast by the AP, and obtains the service information of the first STA from the broadcast frame. Wherein, the broadcast frame may be a beacon frame (beacon for short). In various embodiments of the present invention, the AP may periodically broadcast a broadcast frame carrying the service information of the first STA, and the second AP receives the broadcast frame carrying the service information of the first STA periodically broadcast by the AP, or the AP is not The broadcast frame carrying the service information of the first STA is broadcast periodically, and the second AP receives the broadcast frame carrying the service information of the first STA broadcast aperiodically by the AP. Mode 2: The second STA sends a service information query request frame for subscribing to the service information to the AP, and the AP receives the service information query request frame for subscribing to the service information from the second STA and returns the service information carrying the service information of the first STA. In the information query response frame, the second STA obtains the service information of the first STA from the service information query response frame. Specifically, the service information query request frame may be a probe request frame, and the service information query response frame may be a probe response frame. Mode 3: The second STA sends a general query request frame to the AP, and the AP receives the general query request frame from the second STA, and the AP carries all the information that can be returned to the second STA into the general query response frame and returns it to the second STA. STA, wherein the above various information may include the service information of the first STA, that is, the AP returns a general inquiry response frame carrying the service information to the second STA, and the second STA obtains the information of the first STA from the general inquiry response frame. service information. Way 4: The second STA subscribes to the AP in advance for service information, and the AP sends a message frame carrying the service information of the first STA to the second STA that pre-subscribes for the service information. Specifically, at any time, the second STA may send a service information subscription request message for subscribing to the service information to the AP. After the AP receives the service information subscription request message for subscribing the service information from the second STA, the AP After completing the registration of the service information of the first STA, the AP sends a message frame carrying the service information of the first STA to the second STA. The step of the second STA sending a service information subscription request message for subscribing to the service information to the AP may be performed at any time from step 301 to step 305, or may be performed before step 301 or between step 305 and step 306. The embodiments of the invention do not limit this.

In this step, the message used by the AP to inform the second STA of the service information of the first STA may adopt an improved existing message, and add information elements related to the service information of the first STA to the existing message; A new message may also be added during the communication process, the message includes information elements related to notifying the first STA of the service information, and this message is used as the message used by the AP to notify the second STA of the first STA's service information.

A specific implementation manner of including information elements related to the service information notified to the first STA in the above message is introduced below. FIG. 8 is a schematic structural diagram of information elements related to service information notified to a first STA according to Embodiment 3 of the present invention. This structure is only a specific implementation manner of the information element, and other specific implementation manners may also be used in practical applications. As shown in FIG. 8 , the information element includes: an information element identifier (referred to as Element ID), an information element length (referred to as Length), and a service name (referred to as ServiceName). Wherein, a specific implementation manner is that the ID of the information element and the length of the information element each occupy 1 byte, and the service name occupies n bytes, and the value of n can be flexibly set according to the actual situation. Wherein, the service name may also be one or a combination of several of the following information: service summary information, device name, device address information, and service duration.

The above describes the implementation manner of including information elements related to the service information notified to the first STA in the message. In other implementation manners, a special message may also be used to carry the service information of the first STA. If a special message is used to carry the service information of the first STA, the message does not need to include the information element identifier and the length of the information element shown in Figure 8, but a special message header structure is used instead of the information element identifier shown in Figure 8 and the length of the information element. After the message header structure, content such as the service name is included. Wherein, the service name may also be one or a combination of several of the following information: service summary information, device name, device address information, and service duration.

In Embodiment 3 of the present invention, the first STA sends a registration service information request message to the AP, and the registration service information request message carries the service information of the first STA, so that the AP registers the service information of the first STA to realize Registration of service information. Further, after the AP registers the service information of the first STA, it may also notify the second STA of the service information of the first STA, so as to implement publishing of the service information. Moreover, the above-mentioned process for the first STA to register service information with the AP can be performed before or after the association process, so it is not limited by the association operation. Correspondingly, before the first STA registers service information with the AP, the first STA can also The authority confirmation process of publishing service information is carried out between AP and AP, which ensures the security of the network.

FIG. 9 is a schematic structural diagram of a first device according to Embodiment 4 of the present invention. As shown in FIG. 9 , the first device at least includes: a transmitter 41 and a receiver 42 .

Wherein, the receiver 42 is configured to obtain service information publishing capability indication information from the second device.

The transmitter 41 is configured to send a registration service information request message to the second device, the registration service information request message including the service information of the first device, so that the second device registers and notifies the third device of all service information. Specifically, the service information registered by the second device and notified to the third device includes: service information of the first device.

On the basis of the above technical solution, specifically, the service information may include one or a combination of several of the following information: service name, service summary information, device name, device address information, and service duration. On this basis, further, the service information may also include one or a combination of several of the following information: service release start time, service release end time, and service release duration.

On the basis of the above technical solution, specifically, the receiver 42 may use any one or a combination of several of the following three ways to acquire the service information publishing capability indication information from the second device. Way 1, the receiver 42 is specifically configured to receive a broadcast frame broadcast by the second device that carries the service information publishing capability indication information. Wherein, the broadcast frame may be a beacon frame (beacon for short). In the second way, the transmitter 41 is further configured to send a service information release capability query request frame to the second device, and correspondingly, the receiver 42 is specifically configured to receive a message carrying the service information returned by the second device. The service information release capability query response frame of the release capability indication information. Specifically, the service information release capability query request frame may be a probe request frame or a general advertisement service initial request frame, and the service information release capability query response frame may be a probe response frame or a general advertisement service initial response frame. Mode 3, the transmitter 41 is further configured to send a general query request frame to the second device, and correspondingly, the receiver 42 is specifically configured to receive the service information publishing capability indication returned by the second device Generic query-response frame for information.

On the basis of the above technical solution, further, the sender 41 is further configured to confirm with the second device the authority to publish service information. Specifically, the transmitter 41 is specifically configured to send to the second device authentication code information obtained through a pre-authorization method or through a cellular communication network, so that the second device confirms that the second device according to the authentication code information A device has the authority to publish service information.

The first device in Embodiment 4 of the present invention can be used to execute the method for publishing service information described in Embodiment 1 of the present invention. For its specific implementation process and technical effects, reference can be made to Embodiment 1 of the present invention, which will not be repeated here.

FIG. 10 is a schematic structural diagram of a second device according to Embodiment 5 of the present invention. As shown in FIG. 10 , the second device at least includes: a receiver 51 , a processor 52 and a transmitter 53 .

Wherein, the receiver 51 is configured to receive a registration service information request message from the first device, and the registration service information request message includes the service information of the first device. Specifically, the receiver 51 may receive the service information registration request message from the first device after the sender 53 sends the service information publication capability indication information to the first device.

The processor 52 is used for registering the service information. Specifically, the service information registered by the processor 52 includes the service information of the first device.

The transmitter 53 is configured to send service information publishing capability indication information to the first device and notify the third device of the service information. Specifically, the service information notified by the transmitter 53 to the third device includes: the service information of the first device. The transmitter 53 may notify the third device of the service information of the first device after the processor 52 registers the service information of the first device.

On the basis of the above technical solution, specifically, the service information includes one or a combination of several of the following information: service name, service summary information, device name, device address information, and service duration. On this basis, further, the service information may also include one or a combination of several of the following information: service release start time, service release end time, and service release duration.

On the basis of the above technical solution, specifically, the transmitter 53 may adopt any one or a combination of several of the following three ways to notify the third device of the service information of the first device. Manner 1, the transmitter 53 is specifically configured to broadcast a broadcast frame carrying service information of the first device. Wherein, the broadcast frame may be a beacon frame (beacon for short). Mode 2, the receiver 51 is further configured to receive a service information query request frame for subscribing to the service information from the third device, and correspondingly, the transmitter 53 is specifically configured to return the message carrying the first device Service information inquiry response frame of service information. Specifically, the service information query request frame may be a probe request frame, and the service information query response frame may be a probe response frame. Mode 3, the receiver 51 is further configured to receive a general query request frame from the third device, and correspondingly, the transmitter 53 is specifically configured to return a general query response frame carrying service information of the first device . Mode 4, the receiver 51 is further configured to receive a service information subscription request message from the third device for subscribing to the service information, and the sender 53 is specifically configured to send a message carrying the service information to the third device. A message frame, where the service information carried in the message frame includes the service information of the first device. Wherein, the receiver 51 may receive a service information subscription request message for subscribing to the service information from the third device at any time.

On the basis of the above technical solution, specifically, the sender 53 may use any one or a combination of several of the following three ways to send the service information publishing capability indication information to the first device. Manner 1, the transmitter 53 is specifically configured to broadcast a broadcast frame carrying the service information publishing capability indication information. Wherein, the broadcast frame may be a beacon frame (beacon for short). Mode 2, the receiver 51 is specifically configured to receive a service information publishing capability query request frame from the first device, and correspondingly, the transmitter 53 is specifically configured to return a message carrying the service information to the first device. The service information release capability query response frame of the release capability indication information. Specifically, the service information release capability query request frame may be a probe request frame or a general advertisement service initial request frame, and the service information release capability query response frame may be a probe response frame or a general advertisement service initial response frame. Mode 3, the receiver 51 is specifically configured to receive a general query request frame from the first device, and correspondingly, the transmitter 53 is specifically configured to return the service information publishing capability indication to the first device Generic query-response frame for information.

On the basis of the above technical solution, further, the receiver 51 and the processor 52 are further configured to confirm with the first device the authority to publish service information. Specifically, the receiver 51 , the processor 52 and the first device may adopt any one or a combination of several of the following three ways to confirm the right to publish service information. Mode 1, the receiver 51 is specifically configured to receive the authentication code information obtained from the first device in a pre-authorized manner or through a cellular communication network, and the processor 52 is specifically configured to confirm the authentication code information according to the authentication code information. The above-mentioned first device has the authority to publish service information. In a second manner, the processor 52 is specifically configured to adjust the power of the second device, so that the second device only covers a set area that is allowed to publish service information.

The second device in Embodiment 5 of the present invention can be used to execute the method for distributing service information described in Embodiment 2 of the present invention. For its specific implementation process and technical effects, reference can be made to Embodiment 2 of the present invention, which will not be repeated here.

The above method or device in each embodiment of the present invention may be applicable to a WiFi network.

It should be noted that, for the foregoing method embodiments, for the sake of simple description, they are expressed as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described action sequence. Because of the present invention, certain steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification belong to preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

In the foregoing embodiments, the descriptions of each embodiment have their own emphases, and for parts not described in detail in a certain embodiment, reference may be made to relevant descriptions of other embodiments.

Those of ordinary skill in the art can understand that all or part of the steps for implementing the above method embodiments can be completed by program instructions and related hardware. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps including the above-mentioned method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. scope.

Claims (23)

1. A method for publishing service information, comprising: The first device acquires service information publishing capability indication information from the second device; The first device sends a registration service information request message to the second device, and the registration service information request message includes the service information of the first device, so that the second device registers and notifies the third device The service information described in the meeting; Wherein, the obtaining by the first device of the service information release capability indication information from the second device includes: The first device receives the broadcast frame carrying the service information publishing capability indication information broadcast by the second device. 2. The method according to claim 1, wherein the service information includes: Service name, and/or, service summary information, and/or, device name, and/or, device address information, and/or, service duration. 3. The method according to claim 2, wherein the service information further includes: Service release start time, and/or, service release end time, and/or, service release duration. 4. The method according to any one of claims 1 to 3, wherein before the first device sends the registration service information request message to the second device, it further includes: The first device confirms with the second device the authority to publish service information. 5. The method according to claim 4, wherein the confirming the authorization of publishing service information between the first device and the second device comprises: The first device sends to the second device authentication code information obtained through pre-authorization or through a cellular communication network, so that the second device confirms that the first device is capable of publishing service information according to the authentication code information permission. 6. The method according to any one of claims 1 to 3, wherein the notification of the service information by the second device to the third device comprises: The second device broadcasts a broadcast frame carrying the service information; And/or, the second device receives a service information query request frame for subscribing to the service information from the third device and returns a service information query response frame carrying the service information; And/or, the second device receives a general query request frame from the third device and returns a general query response frame carrying the service information; And/or, the second device sends a message frame carrying the service information to the third device according to the received service information subscription request message from the third device for subscribing to the service information. 7. A method for publishing service information, comprising: The second device sends service information publishing capability indication information to the first device; The second device receives a registration service information request message from the first device, and the registration service information request message includes the service information of the first device; The second device registers the service information of the first device; The second device notifies the third device of the service information; Wherein, the second device sending the service information release capability indication information to the first device includes: The second device broadcasts a broadcast frame carrying the service information publishing capability indication information. 8. The method according to claim 7, wherein the service information includes: Service name, and/or, service summary information, and/or, device name, and/or, device address information, and/or, service duration. 9. The method according to claim 8, wherein the service information further includes: Service release start time, and/or, service release end time, and/or, service release duration. 10. The method according to any one of claims 7 to 9, wherein the notification of the service information by the second device to the third device comprises: The second device broadcasts a broadcast frame carrying the service information; And/or, the second device receives a service information query request frame for subscribing to the service information from the third device and returns a service information query response frame carrying the service information; And/or, the second device receives a general query request frame from the third device and returns a general query response frame carrying the service information; And/or, the second device sends a message frame carrying the service information to the third device according to the received service information subscription request message from the third device for subscribing to the service information. 11. The method according to any one of claims 7 to 9, wherein before the second device receives the registration service information request message from the first device, further comprising: The second device confirms with the first device the authority to publish service information. 12. The method according to claim 11, wherein the confirming the authority of publishing service information between the second device and the first device comprises: The second device receives authentication code information obtained from the first device through pre-authorization or through a cellular communication network, and confirms that the first device has the authority to publish service information according to the authentication code information; And/or, the second device adjusts the power so that the second device only covers a set area that is allowed to publish service information. 13. A device for publishing service information, said device being a first device, characterized in that it comprises: a receiver, configured to acquire service information publishing capability indication information from the second device; a sender, configured to send a registration service information request message to the second device, where the registration service information request message includes the service information of the first device, so that the second device registers and notifies the third device The service information described in the meeting; Wherein, the receiver is specifically configured to receive a broadcast frame broadcast by the second device that carries the service information publishing capability indication information. 14. The device according to claim 13, wherein the service information includes: Service name, and/or, service summary information, and/or, device name, and/or, device address information, and/or, service duration. 15. The device according to claim 14, wherein the service information further includes: Service release start time, and/or, service release end time, and/or, service release duration. 16. Apparatus according to any one of claims 13 to 15, wherein The transmitter is further configured to confirm with the second device the authority to publish service information. 17. The apparatus of claim 16, wherein: The transmitter is specifically configured to send to the second device authentication code information obtained through a pre-authorization method or through a cellular communication network, so that the second device confirms that the first device is capable of issuing Access to Service Information. 18. A device for publishing service information, said device being a second device, characterized in that it comprises: a receiver, configured to receive a registration service information request message from the first device, where the registration service information request message includes service information of the first device; a transmitter, configured to send service information publishing capability indication information to the first device and notify a third device of the service information; a processor for registering the service information; Wherein, the transmitter is used to send the service information publishing capability indication information to the first device specifically: the transmitter is used to broadcast a broadcast frame carrying the service information publishing capability indication information. 19. The device according to claim 18, wherein the service information comprises: Service name, and/or, service summary information, and/or, device name, and/or, device address information, and/or, service duration. 20. The device according to claim 19, wherein the service information further includes: Service release start time, and/or, service release end time, and/or, service release duration. 21. Apparatus according to any one of claims 18 to 20, wherein The transmitter is specifically configured to broadcast a broadcast frame carrying the service information; And/or, the receiver is further configured to receive a service information query request frame for subscribing to the service information from the third device, and the transmitter is specifically configured to return a service information query response frame carrying the service information ; And/or, the receiver is further configured to receive a general query request frame from the third device, and the transmitter is specifically configured to return a general query response frame carrying the service information; And/or, the receiver is further configured to receive a service information subscription request message from the third device for subscribing to the service information, and the sender is specifically configured to send a message carrying the service information to the third device message frame. 22. Apparatus according to any one of claims 18 to 20, wherein The receiver and the processor are further configured to confirm with the first device the authority to publish service information. 23. The apparatus of claim 22, wherein: The receiver is specifically configured to receive authentication code information obtained from the first device in a pre-authorized manner or through a cellular communication network, and the processor is specifically configured to confirm that the first device has The authority to publish service information; And/or, the processor is specifically configured to adjust the power of the second device, so that the second device only covers a set area that is allowed to publish service information.