WO2015154406A1

WO2015154406A1 - Monitoring information sending method and apparatus, and monitoring method and apparatus

Info

Publication number: WO2015154406A1
Application number: PCT/CN2014/088581
Authority: WO
Inventors: 朱进国; 梁爽; 卢飞
Original assignee: 中兴通讯股份有限公司
Priority date: 2014-04-11
Filing date: 2014-10-14
Publication date: 2015-10-15
Also published as: CN104980951A

Abstract

Disclosed are a monitoring information sending method and apparatus, and a monitoring method and apparatus. The monitoring information sending method comprises: in response to a monitoring request of a monitoring terminal, specifying information about a PLMN monitored by the monitoring terminal; and sending the specified information about the PLMN and information about a monitored target to the monitoring terminal. By means of the present invention, a PLMN monitored by a monitoring terminal is specified, so that monitoring on all PLMNs can be avoided; and information about a monitored target is sent, so that monitoring on an expired monitored target can be avoided.

Description

Method, device and monitoring method and device for transmitting monitoring information

Technical field

The present invention relates to the field of communications, and in particular to a method, device, and monitoring method and apparatus for transmitting interception information.

Background technique

Terminals in the vicinity use direct device-to-device (D2D) communication to bring many benefits to the terminal, such as higher speed, lower latency, and lower power consumption. At the same time, the wireless resource efficiency of the operator is greatly improved, and the D2D Relay mode is advantageous for the operator to improve the wireless coverage. For applications, the use of proximity information in the D2D communication process can lead to more attractive new services. The Public Safety system can also use D2D technology to enable communication between terminals without wireless coverage.

FIG. 1 is a schematic diagram of a D2D architecture related to 3GPP according to the related art. As shown in FIG. 1, the functions of the key network elements are as follows.

Terminal: also called User Equipment (UE), which supports the interface PC5 between the terminal and the terminal to send and receive signals. At the same time, in the case of coverage, it supports accessing the base station through the radio and accessing the core through the S1 interface. The network communicates with the short-range communication server through the user plane interface PC3.

The base station is also called an eNodeB (Evolved NodeB, an evolved NodeB) in the evolved system, and provides radio resources for the access of the terminal, and communicates with the core network through the S1 interface.

Core network: including mobile management unit and gateway. The mobile management unit is a control plane entity responsible for temporarily storing user data, and is responsible for authentication, mobility management, and subscription checking. The gateway is a user plane entity, which is responsible for allocating an IP address to the terminal and forwarding the uplink and downlink data packets of the terminal. And billing and so on.

A short-range communication server, which is located outside the core network, and the terminal communicates with the server through the user plane interface PC3. The main functions of the server include D2D service authorization, allocation of temporary identification code (code) for terminal application, terminal broadcast, assistance in D2D discovery, and billing. The authorization information comes from the home subscription server.

The home subscription server is located in the home network. The main function is to provide subscription information and authentication information for users and applications.

The operator allocates a unique application identifier to the application on the terminal. For example, the identifier includes the PLMN information and the application identifier information. The PLMN includes the country code and the network number. The application identifier information uniquely identifies an application, and may also uniquely identify a type of application. Such as hotels, restaurants, etc. In the case of coverage, if the terminal D2D needs to use the carrier's frequency band resources, it needs to obtain authorization from the operator and the operator can control and charge. In this case, the terminal generally does not allow direct broadcast of its own application identifier, but needs to The proximity server acquires a temporary identification code uniquely corresponding to the application identifier, and then broadcasts the code.

The D2D discovery of the two terminals includes two processes: UE A broadcast, UE B listen. If the code A monitored by UE B already knows, terminal B finds that terminal A is nearby. If the terminal B does not recognize the monitored codeA, there is still a process of matching to the network, so as to know the application identifier of the UE A corresponding to the code A, so that the terminal A is found nearby. The description of these three processes is shown in Figures 2, 3 and 4, respectively.

2 is a schematic diagram of a broadcast request process according to the related art. As shown in FIG. 2, the broadcast request process includes steps S202 to S216.

In step S202, the terminal A obtains an application identifier from the operator, and the application identifier is only allowed to be used by the UE A.

Step S204, if the terminal A wants to broadcast itself by using the wireless resource of the operator, so that other terminals can discover themselves, establish a connection with the network, and send a broadcast request message to the proximity server, where the request includes an application identifier that is desired to be broadcast, Endpoint identification and indication of announcing. Terminal A generates the identity of the proximity server through the PLMN identity that it belongs to, and obtains the IP address of the home server through the DNS lookup. The terminal identifier is IMSI or MSISDN.

Step S206: After receiving the broadcast request, the proximity server requests the home server to send a subscription request with the user identifier if there is no user context.

Step S208, the home server returns the subscription information of the terminal in the subscription response.

Step S210: According to the contract information belonging to the proximity server, determine that the terminal is allowed to perform the D2D service, and the user does sign the application identifier, the user context is created, and a temporary identifier code A and corresponding are assigned to the application identifier sent by the user. Validity period. If it is considered that the terminal A may roam to the visited network, the home proximity server also needs to notify the temporary identification code A to the proximity server of the visited place.

Step S212, the proximity server returns the assigned temporary identifier code A and the corresponding validity period to the UE A.

In step S214, the terminal A acquires radio resources. The radio resource corresponding to each PLMN that allows D2D broadcast may be configured for the terminal A in two ways, such that when the UE is in no coverage, or the base station When the method is indicated, the D2D radio resource matching the currently registered PLMN can be found; the second method is that the base station allocates the available D2D radio resource to the terminal A.

Step S216, the terminal A broadcasts the obtained code A on the acquired radio resource. In order to improve efficiency, the terminal A sets a timer, and periodically broadcasts during the validity period indicated in step S210.

After the validity period expires, the temporary identification code A is invalidated, and the terminal A must re-initiate the process of broadcasting the request, and re-acquire the temporary identification code A and the validity period. After the user moves out of the currently registered PLMN, the Code A immediately becomes invalid, and the terminal also needs to re-initiate the broadcast request process.

FIG. 3 is a schematic diagram of a listening request process according to the related art. As shown in FIG. 3, the listening request process includes steps S302 to S316.

In step S302, the terminal B obtains the application identifier of the terminal A from the operator or a third party.

Step S304: If the terminal B wants to discover the terminal A, the terminal B establishes a connection with the network, and sends a monitoring request to the proximity server, where the request includes the terminal A application identifier and the terminal B terminal identifier that are to be discovered. The terminal B generates the identity of the proximity server through the PLMN identity that it belongs to, and obtains the IP address of the home server by the DNS lookup. The terminal identifier is IMSI or MSISDN.

Step S306, after receiving the discovery request, the proximity server requests the home server to send a subscription request with the user identifier if there is no user context.

Step S308, the home server returns the subscription information of the terminal in the subscription response.

Step S310: Create a user context according to the fact that the subscription information belongs to the proximity server and determines that the terminal is allowed to perform the D2D service.

In step S312, the home proximity server finds the corresponding temporary identifier code A according to the terminal A application identifier, and sets the validity code of the identifier code A to the terminal B. If terminal A and terminal B are not in the same carrier, the home proximity server of terminal B finds the home proximity server of terminal A according to the terminal A application identifier that is brought up, and obtains code A by query.

In step S314, the terminal B acquires a radio resource. The terminal B configures the radio resource corresponding to each PLMN that the D2D monitors, and the terminal can listen to all the radio resources within the valid value indicated by step S312.

Step S316, when the terminal B listens to the code A, the terminal A is successfully found to be in the adjacent area.

After the validity period expires, the temporary identification code A is invalidated, and the terminal B must re-initiate the process of listening for the request to acquire the new temporary identification code A and the validity period.

If the terminal A brings a type of application in step S304, step S312 may return a mask. In this case, if the code monitored in step S316 matches the template, such as the first few bits of the code and the If the template is completely matched, the terminal B needs to initiate a matching process to learn the application identifier corresponding to the code.

4 is a schematic diagram of a matching request process according to the related art. As shown in FIG. 4, the matching request process includes steps S402 to S412.

In step S402, the terminal B listens to the code A, and the code A matches the mask, but the terminal B does not recognize the code A.

Step S404, the terminal B establishes a connection with the network, and sends a matching request to the home proximity server, where the request includes the found code A and the terminal B terminal identifier. The terminal B generates the identity of the proximity server through the PLMN identity that it belongs to, and obtains the IP address of the home server by the DNS lookup. The terminal identifier is IMSI or MSISDN.

Step S406: After receiving the discovery request, the proximity server requests the home server to send a subscription request with the user identifier if there is no user context.

Step S408, the home server returns the subscription information of the terminal in the subscription response.

Step S410, determining that the terminal is allowed to perform D2D service according to the subscription information belonging to the proximity server. The belonging close-range server acquires the terminal A application identifier according to the code A that is brought up. If the terminal A and the terminal B are not in the same carrier, the home proximity server finds the home proximity server of the terminal A according to the code A of the terminal A that is brought up, and obtains the application layer identifier.

Step S412, the home proximity server sets the validity period of the code, and then returns the terminal A application identifier and the validity period to the UE B, so that the UE B successfully discovers that the terminal A is in the adjacent area. Within this validity period, both the codeA and the terminal A application identifiers match.

As shown in step S314, when the terminal is listening, it needs to monitor the radio resources corresponding to all allowed PLMNs. One problem with this scheme is that it is not optimized because the destination terminal broadcasts only in one PLMN without listening to all allowed PLMNs. Another problem is that after the broadcast terminal moves out of the currently registered PLMN, if it is a malicious terminal, does not re-acquire the code to the network, and still broadcasts the original code, it can still be monitored and matched successfully, causing the operator to lose control. .

In view of the above problems in the related art, an effective solution has not yet been proposed.

Summary of the invention

The invention provides a method, a device and a monitoring method and a device for transmitting interception information, so as to at least solve the problem of the security of the monitoring process and the waste of the monitoring resources in the related art.

According to an embodiment of the present invention, a method for transmitting interception information is provided, including: responding to a monitoring request of a monitoring terminal, specifying public land mobile network PLMN information monitored by the monitoring terminal; and transmitting the PLMN to the monitoring terminal Information and monitoring target information.

The PLMN information includes: a PLMN currently registered by the broadcast terminal corresponding to the application identifier that requests the interception; and/or an equivalent PLMN of the currently registered PLMN.

The monitoring target information includes: a ProSe temporary identifier and/or a ProSe temporary identifier template.

Specifying the PLMN information monitored by the monitoring terminal includes: initiating a listening request to the target proximity server in the PLMN specified by the application identifier that is requested to be intercepted, and acquiring the PLMN information.

Specifying the PLMN information monitored by the monitoring terminal includes: initiating a listening request to the target proximity server in the PLMN that allows the listening terminal to listen, and acquiring the PLMN information.

Obtaining the PLMN information and the interception target information by the target proximity server includes: searching a context of the broadcast terminal; acquiring a PLMN currently registered by the broadcast terminal from a context of the broadcast terminal; and/or acquiring a location An equivalent PLMN of the currently registered PLMN; a ProSe temporary identifier or a ProSe temporary identification template of the interception target.

According to another embodiment of the present invention, a device for transmitting interception information is provided, including: a specifying module, configured to respond to a listening request of the monitoring terminal, and specify a public land mobile network PLMN information monitored by the monitoring terminal; and a sending module, It is arranged to send the PLMN information and the monitoring target information to the monitoring terminal.

The specifying module includes: a first acquiring unit, configured to initiate a listening request to the target proximity server in the PLMN specified by the application identifier that is requested to be intercepted, and acquire the PLMN information.

The specifying module includes: a second acquiring unit, configured to initiate a listening request to the target short-range server in the PLMN that allows the listening terminal to listen, and acquire the PLMN information.

The specifying module includes: a searching unit configured to search for a context of the broadcast terminal; and a third obtaining unit configured to acquire, from a context of the broadcast terminal, a PLMN currently registered by the broadcast terminal; and/or a fourth acquiring a unit, configured to acquire an equivalent PLMN of the currently registered PLMN, and a fifth obtaining unit configured to acquire a ProSe temporary identifier or a ProSe temporary identifier template of the interception target.

According to still another embodiment of the present invention, a proximity server is provided, comprising: any of the above devices.

According to still another embodiment of the present invention, a monitoring method is provided, including: transmitting a monitoring request to a proximity server; receiving public land mobile network PLMN information and monitoring target information specified by a proximity server; and specifying the PLMN information The interception target information is monitored in the PLMN.

The PLMN information includes: a PLMN currently registered by the broadcast terminal; and/or an equivalent PLMN of the currently registered PLMN.

The monitoring target information includes: a ProSe temporary identifier or a ProSe temporary identifier template.

According to still another embodiment of the present invention, a monitoring apparatus is provided, including: a sending module configured to send a listening request to a proximity server; and a receiving module configured to receive PLMN information of a public land mobile network designated by the proximity server and Listening to the target information; the listening module is configured to listen to the interception target information in the PLMN specified by the PLMN information.

According to still another embodiment of the present invention, a terminal is provided, comprising: any of the above-mentioned monitoring devices.

In the embodiment of the present invention, in response to the monitoring request of the monitoring terminal, the PLMN information monitored by the monitoring terminal is specified, the designated PLMN information and the monitoring target information are sent to the monitoring terminal, and the PLMN that listens to the monitoring terminal is designated, so that all PLMNs can be avoided. Listening; sending interception target information can avoid listening to expired listening targets.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a schematic diagram of a D2D architecture related to 3GPP according to the related art;

2 is a schematic diagram of a broadcast request process according to the related art;

3 is a schematic diagram of a listening request process according to the related art;

4 is a schematic diagram of a matching request process according to the related art;

FIG. 5 is a flowchart of a method for transmitting interception information according to an embodiment of the present invention; FIG.

FIG. 6 is a structural block diagram of a device for transmitting interception information according to an embodiment of the present invention; FIG.

7 is a flowchart of a listening method according to an embodiment of the present invention;

FIG. 8 is a structural block diagram of a listening device according to an embodiment of the present invention; FIG.

9 is a flowchart of a preferred terminal B listening for a single terminal listening request process according to an embodiment of the present invention;

10 is a flowchart of a preferred listener request process for a terminal B to listen to a group of terminals corresponding to a type of application according to an embodiment of the present invention;

11 is a flow chart of a method for obtaining a peer PLMN of terminal A by a home proximity server of terminal A according to an embodiment of the present invention.

detailed description

The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

In the following embodiments, the terminal may be a mobile terminal (eg, a mobile phone, a tablet, etc.), or may be another type of terminal. The operating system running on the terminal is also various types of systems, for example, the currently widely used Android system, or the Windows operating system, the iOS system, etc., but is not limited thereto. The device/close server can be a server, various gateways, or other types of devices.

The terminal or proximity server can include a storage medium, and program units stored in the storage medium can be used to perform the methods described in the following embodiments. The terminal or device may also include a processor that is configurable to execute the program elements described above. It is to be expected that the methods or apparatus described below can be implemented by program units.

According to an embodiment of the present invention, a method for transmitting interception information is provided.

FIG. 5 is a flowchart of a method for transmitting interception information according to an embodiment of the present invention. As shown in FIG. 5, the method includes steps S502 to S504.

Step S502, responding to the monitoring request of the monitoring terminal, specifying the PLMN information monitored by the monitoring terminal.

Step S504, transmitting PLMN information and monitoring target information to the monitoring terminal.

In an embodiment of the present invention, the specified PLMN information may include: a PLMN currently registered by the broadcast terminal corresponding to the application identifier that requests the interception; and/or an equivalent PLMN of the PLMN currently registered by the broadcast terminal.

In an embodiment of the present invention, the monitoring target information may include: a ProSe temporary identifier and/or a ProSe temporary identifier template corresponding to the application identifier that requests the interception.

In an embodiment of the present invention, the PLMN information that is monitored by the monitoring terminal is specified, and the target proximity server in the specified PLMN of the application identifier that is requested to be monitored may initiate a listening request to obtain the PLMN information. In the embodiment of the present invention, the application identifier that requests the interception may specify the PLMN. In this case, the interception request may be initiated to the target proximity server in the designated PLMN, and the PLMN information monitored by the designated interception terminal is obtained.

In another embodiment of the present invention, the PLMN information that is monitored by the intercepting terminal is specified, and the monitoring request may be initiated to the target short-range server in the PLMN that is allowed to be monitored by the listening terminal to obtain the PLMN information. In the embodiment of the present invention, a PLMN (which can be used as a list) that allows the listening terminal to listen to can be set. In this case, a listening request can be initiated to the target short-range server in the PLMN, and the PLMN information monitored by the designated listening terminal can be obtained. .

In a preferred embodiment of the present invention, the target proximity server obtains the PLMN information and the monitoring target information, and may search for the context of the broadcast terminal, obtain the PLMN currently registered by the broadcast terminal from the context of the broadcast terminal, and obtain the currently registered PLMN. The equivalent PLMN obtains the ProSe temporary identifier or the ProSe temporary identification template of the interception target.

According to an embodiment of the present invention, a device for transmitting interception information is provided. It is anticipated that the device can be implemented by a computer program unit.

FIG. 6 is a structural block diagram of a device for transmitting monitoring information according to an embodiment of the present invention. As shown in FIG. 6, the device may include: a specifying module 10 and a sending module 20, wherein the specifying module 10 is configured to respond to the monitoring of the monitoring terminal. The request specifies the PLMN information monitored by the monitoring terminal; the sending module 20 is connected to the specifying module 10 and configured to send the PLMN information and the monitoring target information to the monitoring terminal.

In the embodiment of the present invention, the specifying module 10 specifies the PLMN information monitored by the monitoring terminal in response to the monitoring request of the monitoring terminal, and the sending module 20 sends the specified PLMN information and the monitoring target information to the monitoring terminal. The PLMN that listens to the listening terminal can be configured to avoid listening to all PLMNs; sending the monitoring target information can avoid monitoring the expired listening target.

In an embodiment of the present invention, the PLMN information that is monitored by the designated listening terminal includes: a PLMN currently registered by the broadcast terminal corresponding to the application identifier that requests the interception; and/or an equivalent PLMN of the currently registered PLMN.

In an embodiment of the present invention, the monitoring target information includes: a ProSe temporary identifier and/or a ProSe temporary identifier template corresponding to the application identifier that requests the interception.

In an embodiment of the present invention, the specifying module 10 may include: a first acquiring unit, configured to initiate a listening request to the target proximity server in the PLMN specified by the application identifier that is requested to be monitored, and acquire the PLMN that the specified listening terminal listens to. information.

In an embodiment of the present invention, the specifying module 10 may include: a second acquiring unit, configured to initiate a listening request to the target short-range server in the PLMN that allows the listening terminal to listen, and obtain PLMN information that is monitored by the designated listening terminal.

In a preferred embodiment of the present invention, the specifying module 10 may include: a searching unit configured to search for a context of the broadcast terminal; and a third obtaining unit configured to acquire, from a context of the broadcast terminal, a PLMN currently registered by the broadcast terminal; a fourth obtaining unit, configured to obtain the equivalent of the currently registered PLMN The PLMN is configured to acquire a ProSe temporary identifier or a ProSe temporary identifier template of the interception target.

According to an embodiment of the present invention, a proximity server is provided, including: any of the foregoing apparatus for transmitting interception information according to an embodiment of the present invention. The device can implement the foregoing method for transmitting the interception information in the embodiment of the present invention.

In a preferred embodiment of the present invention, the apparatus for transmitting the monitoring information may be implemented by a computer program unit, and the short-range server may include a storage medium and a processor, where the computer program unit may be stored in the storage medium, and the processor may be Specify the above computer program unit stored in the storage medium.

According to an embodiment of the present invention, a monitoring method is provided.

FIG. 7 is a flowchart of a listening method according to an embodiment of the present invention. As shown in FIG. 7, the method includes steps S702 to S706.

Step S702, sending a monitoring request to the proximity server.

Step S704, receiving PLMN information and interception target information specified by the proximity server.

Step S706, the interception target information is monitored in the PLMN specified by the PLMN information.

In the embodiment of the present invention, the monitoring request is sent to the short-distance server, and the PLMN and the monitoring target information specified by the short-distance server are received, so that all PLMNs can be prevented from being monitored, and the monitoring of expired or other situations can be avoided.

In an embodiment of the present invention, the foregoing PLMN information may include: a PLMN currently registered by the broadcast terminal; and/or an equivalent PLMN of the currently registered PLMN.

In an embodiment of the present invention, the monitoring target information includes: a ProSe temporary identifier or a ProSe temporary identifier template corresponding to the application identifier that requests the interception.

According to an embodiment of the invention, a listening device is provided. It is to be expected that the monitoring device can be implemented by a computer program unit, and those skilled in the art can predict how to prepare a corresponding computer program according to the flow of the above monitoring method.

FIG. 8 is a structural block diagram of a monitoring apparatus according to an embodiment of the present invention. As shown in FIG. 8, the apparatus may include: a sending module 30, a receiving module 40, and a listening module 50. The sending module 30 is configured to send a monitoring request to the proximity server; the receiving module 40 is connected to the sending module 30, and is configured to receive the proximity server finger. The monitoring PLMN information and the monitoring target information are set; the monitoring module 50 is connected to the receiving module 40, and is configured to listen to the monitoring target information in the PLMN specified by the PLMN information.

In an embodiment of the embodiment of the present invention, the PLMN information may include: a PLMN currently registered by the broadcast terminal; and/or an equivalent PLMN of the currently registered PLMN.

In an embodiment of the present invention, the foregoing monitoring target information may include: a ProSe temporary identifier or a ProSe temporary identifier template.

According to an embodiment of the present invention, a terminal is further provided, and the terminal may include any monitoring device according to the foregoing embodiment of the present invention.

In an embodiment of the embodiment of the present invention, the monitoring device may be implemented by a computer program unit, and the terminal may include a storage medium and a processor, where the computer program unit may be stored in a storage medium, and the processor may specify storage in the storage medium. The above computer program unit.

The embodiments of the present invention are described below in conjunction with the preferred embodiments.

FIG. 9 is a flowchart of a preferred monitoring process of the terminal B listening to a single terminal according to an embodiment of the present invention. As shown in FIG. 9, the process includes steps S902 to S916.

Step S902, the terminal B acquires the application identifier of the terminal A from the operator or a third party.

In step S904, if the terminal B wants to discover the terminal A, the terminal establishes a connection with the network, and sends a monitoring request to the proximity server, where the request includes the terminal A application identifier and the terminal B terminal identifier that are to be discovered. The terminal B generates the identity of the proximity server through the PLMN identity that it belongs to, and obtains the IP address of the home server by the DNS lookup. The terminal identifier is IMSI or MSISDN.

Step S906: After receiving the discovery request, the proximity server requests the home server to send a subscription request with the user identifier if there is no user context.

Step S908, the home server returns the subscription information of the terminal in the subscription response, which includes all PLMN lists that the terminal B is allowed to listen to.

Step S910: Create a user context according to the fact that the subscription information belongs to the proximity server and determines that the terminal is allowed to perform the D2D service.

Step S912: The home proximity server finds the context of the corresponding terminal A according to the terminal A application identifier that is brought up. In this context, the PLMN information currently registered by the user and the temporary identification code A and the validity period are stored. If terminal A and terminal B are not in the same carrier, the home proximity server of terminal B finds the home proximity server of terminal A according to the terminal A application identifier that is brought up, and obtains code A by query. If the PLMN registered by the terminal A has an equivalent PLMN list, the equivalent PLMN list is returned. The proximity service server determines whether the PLMN registered by the terminal A is allowed to be monitored by the terminal B, and if it is not allowed, directly returns a failure. If permitted, the PLMN information registered by the terminal A, the identification code A, and an expiration date are sent to the terminal B together. If the PLMN registered by the terminal A has an equivalent PLMN list, it is sent to the terminal B together.

See Figure 11 for the way in which the home proximity server of terminal A obtains the equivalent PLMN list.

In step S914, the terminal B performs monitoring only on the radio resource corresponding to the PLMN registered by the terminal A.

In step S916, when the terminal B listens to the code A, the terminal A is successfully found to be in the adjacent area.

FIG. 10 is a flowchart of a preferred monitoring process of a terminal B listening to a group of terminals corresponding to a type of application according to an embodiment of the present invention. As shown in FIG. 10, the process includes step S102, step S1020.

In step S1002, the terminal B acquires the destination application identifier from the operator or a third party.

In step S1004, the terminal B establishes a connection with the network, and sends a monitoring request to the proximity server, where the request includes the destination application identifier and the terminal B terminal identifier that are to be discovered. The terminal B generates the identity of the proximity server through the PLMN identity that it belongs to, and obtains the IP address of the home server by the DNS lookup. The terminal identifier is IMSI or MSISDN.

Step S1006: After receiving the discovery request, the proximity server requests the home server to send a subscription request with the user identifier if there is no user context.

Step S1008: The home proximity server returns the subscription information of the terminal in the subscription response, and includes all PLMN lists that the terminal B is allowed to listen to.

Step S1010: Create a user context according to the fact that the subscription information belongs to the proximity server and determines that the terminal is allowed to perform the D2D service.

Step S1012: If the destination application identifier specifies the PLMN, the home proximity server determines whether the PLMN is allowed to be monitored by the terminal B. If not, the direct return fails, and if allowed, to the PLMN. The server initiates a listening request message with a destination application identifier and a terminal B terminal identifier; if the destination application identifier does not specify a PLMN, the home proximity server initiates a listening request message to the short-distance servers of the PLMNs according to the allowed PLMN list in the subscription. With the destination application identifier and the terminal B terminal identifier.

Step S1014: If the destination short-distance server has a user registration related to the application, the destination proximity server returns a template corresponding to the application identifier and a corresponding validity period, and the registered PLMN information is not related to the application. If the user registers, it will return empty. If the registered PLMN has an equivalent PLMN list, it is returned together.

See Figure 11 for the manner in which these collocated servers obtain an equivalent list of PLMNs.

In step S1016, the home proximity server combines the information that returns non-empty, and returns a list to the terminal B in the interception request response, and each item included in the list includes at least PLMN information, a template, and an expiration date. It can also contain a list of equivalent PLMNs.

In step S1018, the terminal B monitors only on the radio resource corresponding to the PLMN specified by the home proximity server. If the equivalent PLMN is included, the monitoring can also be performed on the radio resource corresponding to the equivalent PLMN.

In step S1020, the terminal B listens to a code in the radio resource corresponding to the PLMN, and needs to match the template corresponding to the PLMN. If successful, the subsequent matching process is continued, and if it fails, it is directly discarded.

According to the above preferred embodiment, the home short-distance service server returns the specified PLMN information, and the terminal only listens in the radio resources configured by the PLMN. The PLMN is the PLMN registered by the broadcast terminal, and the listening terminal only needs to listen on the radio resource corresponding to the PLMN, and does not need to listen on the radio resources corresponding to all allowed PLMNs; secondly, if the terminal is a malicious terminal, when the registration is removed When the network is not applying for a new code, the original code is still broadcast in the new PLMN. At this time, the listening terminal is not notified, and only listens to the old PLMN, thereby preventing the broadcast information of the malicious terminal from being accepted.

11 is a flowchart of a method for obtaining a peer PLMN of terminal A by a home proximity server of terminal A according to an embodiment of the present invention. As shown in FIG. 11, the method includes steps S1102 to S1120.

In step S1102, the terminal A obtains an application identifier from the operator, and the application identifier is only allowed to be used by the UE A.

Step S1104: If the terminal A wants to broadcast itself by using the wireless resource of the operator, so that other people can discover themselves, the terminal establishes a connection with the network, and sends a broadcast request message to the proximity server, where the request includes the application identifier that is desired to be broadcast, Endpoint identification and indication of announcing. Terminal A through itself The belonging PLMN identifier generates an identifier of the proximity server and obtains the IP address of the home server by the DNS lookup. The terminal identifier is IMSI or MSISDN.

Step S1106: After receiving the broadcast request, the proximity server requests the home server to send a subscription request with the user identifier if there is no user context.

Step S1108: The home server returns the subscription information of the terminal in the subscription response.

In step S1110, according to the contract information belonging to the proximity server, the server is allowed to perform the D2D service, and the user does sign the application identifier, the user context is created, and a temporary identifier code A and corresponding are assigned to the application identifier sent by the user. Validity period. If it is considered that the terminal A may roam to the visited network, the home proximity server also needs to notify the short-distance server of the visited location to the short-distance server, that is, steps 706-707. This embodiment is directed to the case of roaming to a visited network. At this time, the HSS will also return the visited network information where the UE is located.

In step S1112, the home proximity server finds the visited proximity server according to the visited network information provided by the HSS, and sends a broadcast authentication request to the terminal, which carries the identifier of the terminal A.

Step S1114: After the proximity server authenticates the terminal A, the broadcast authentication response is returned to the home proximity server, where the equivalent PLMN list of the terminal A is carried.

In step S1116, the proximity server returns the assigned temporary identifier code A and the corresponding validity period to the UE A, and the equivalent PLMN list of the terminal A.

In step S1118, the terminal A acquires radio resources. The radio resource corresponding to each PLMN that allows D2D broadcast can be configured in the first manner in the manner of the terminal A, so that when the UE is in no coverage, or when the base station indicates that the method is used, the PLMN can be found and currently registered. Matching D2D radio resources; mode 2 is that the base station allocates available D2D radio resources to terminal A.

In step S1120, the terminal A broadcasts the obtained code A on the acquired radio resource. In order to improve efficiency, the terminal A sets a timer and periodically broadcasts during the validity period indicated by step 205.

After the validity period expires, the temporary identification code A is invalidated, and the terminal A can re-initiate the process of broadcasting the request, and re-acquire the temporary identification code A and the validity period. After the user moves out of the currently registered PLMN, the Code A becomes invalid, and the terminal can re-initiate the process of broadcasting the request.

From the above description, it can be seen that the embodiment of the present invention achieves the following technical effects: the belonging short-distance service server returns the specified PLMN information, and the terminal only listens in the radio resource configured by the PLMN. The PLMN is the PLMN registered by the broadcast terminal, and the listening terminal only needs to listen on the radio resource corresponding to the PLMN, and does not need to listen on the radio resources corresponding to all allowed PLMNs; secondly, if the terminal is a malicious terminal, when the registration is removed When the network is not applying for a new code, the original code is still broadcast in the new PLMN. At this time, the listening terminal is not notified, and only listens to the old PLMN, thereby preventing the broadcast information of the malicious terminal from being accepted.

It will be apparent to those skilled in the art that the various modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Industrial applicability

As described above, the method, device, and monitoring method and apparatus for transmitting interception information provided by the embodiments of the present invention have the following beneficial effects: avoiding listening to all PLMNs; sending interception target information can avoid expired Listen to the target for monitoring.

Claims

A method for transmitting monitoring information includes:

Responding to the monitoring request of the monitoring terminal, specifying the public land mobile network PLMN information monitored by the monitoring terminal;

Transmitting the PLMN information and the monitoring target information to the monitoring terminal.
The method of claim 1 wherein said PLMN information comprises:

The application requesting the interception identifies the PLMN currently registered by the corresponding broadcast terminal; and/or

The equivalent PLMN of the currently registered PLMN.
The method according to claim 1, wherein the interception target information comprises: a ProSe temporary identifier and/or a ProSe temporary identifier template.
The method of claim 1, wherein the specifying the PLMN information monitored by the listening terminal comprises:

The target proximity server in the specified PLMN is requested to initiate a listening request to obtain the PLMN information.
The method of claim 1, wherein the specifying the PLMN information monitored by the listening terminal comprises:

And acquiring a monitoring request to the target proximity server in the PLMN that allows the listening terminal to listen, and acquiring the PLMN information.
The method according to claim 4 or 5, wherein the acquiring the PLMN information and the monitoring target information by the target proximity server comprises:

Finding the context of the broadcast terminal;

Acquiring the PLMN currently registered by the broadcast terminal from the context of the broadcast terminal; and/or

Obtaining an equivalent PLMN of the currently registered PLMN;

Obtain a ProSe temporary identifier or a ProSe temporary identification template of the interception target.
A device for transmitting monitoring information, comprising:

a specifying module, configured to respond to the monitoring request of the monitoring terminal, and specify the public land mobile network PLMN information monitored by the monitoring terminal;

And a sending module, configured to send the PLMN information and the monitoring target information to the monitoring terminal.
The apparatus of claim 7, wherein the PLMN information comprises:

The application requesting the interception identifies the PLMN currently registered by the corresponding broadcast terminal; and/or

The equivalent PLMN of the currently registered PLMN.
The apparatus according to claim 7, wherein the interception target information comprises: a ProSe temporary identifier and/or a ProSe temporary identifier template.
The apparatus of claim 7, wherein the specifying module comprises:

The first obtaining unit is configured to initiate a listening request to the target proximity server in the PLMN specified by the application identifier that is requested to be monitored, and acquire the PLMN information.
The apparatus of claim 7, wherein the specifying module comprises:

The second obtaining unit is configured to initiate a listening request to the target short-range server in the PLMN that allows the listening terminal to listen, and acquire the PLMN information.
The apparatus according to claim 10 or 11, wherein said specifying module comprises:

a search unit configured to find a context of the broadcast terminal;

a third obtaining unit, configured to acquire, from a context of the broadcast terminal, a PLMN currently registered by the broadcast terminal; and/or

a fourth obtaining unit, configured to acquire an equivalent PLMN of the currently registered PLMN;

The fifth obtaining unit is configured to acquire a ProSe temporary identifier or a ProSe temporary identifier template of the monitoring target.
A proximity server comprising: the apparatus of any one of claims 7 to 12.
A monitoring method, including:

Sending a listening request to a proximity server;

Receiving public land mobile network PLMN information and interception target information specified by the proximity server;

The interception target information is listened to in the PLMN specified by the PLMN information.
The listening method according to claim 14, wherein the PLMN information comprises:

The PLMN currently registered by the broadcast terminal; and/or

The equivalent PLMN of the currently registered PLMN.
The listening method according to claim 14, wherein the monitoring target information comprises: a ProSe temporary identifier or a ProSe temporary identifier template.
A monitoring device comprising:

a sending module, configured to send a listening request to the proximity server;

a receiving module, configured to receive public land mobile network PLMN information and interception target information specified by the proximity server;

And a monitoring module configured to listen to the interception target information in a PLMN specified by the PLMN information.
The listening device of claim 17, wherein the PLMN information comprises:

The PLMN currently registered by the broadcast terminal; and/or

The equivalent PLMN of the currently registered PLMN.
The monitoring device according to claim 17, wherein the monitoring target information comprises: a ProSe temporary identifier or a ProSe temporary identification template.
A terminal comprising: the device of any one of claims 17 to 19.