CN109246589B - Method and equipment for realizing positioning service of remote halo terminal - Google Patents

Method and equipment for realizing positioning service of remote halo terminal Download PDF

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Publication number
CN109246589B
CN109246589B CN201710448891.0A CN201710448891A CN109246589B CN 109246589 B CN109246589 B CN 109246589B CN 201710448891 A CN201710448891 A CN 201710448891A CN 109246589 B CN109246589 B CN 109246589B
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terminal
server information
positioning server
information
positioning
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CN109246589A (en
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胡培成
李晓华
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Potevio Information Technology Co Ltd
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Potevio Information Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/023—Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/04—Registration at HLR or HSS [Home Subscriber Server]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/06—Registration at serving network Location Register, VLR or user mobility server
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/08—Trunked mobile radio systems

Abstract

The invention provides a method and a device for realizing the positioning service of a remote halo terminal, wherein the method comprises the following steps: and confirming that the terminal is in a remote halo state and is in initial registration, and sending positioning server information to the enhanced mobile management entity at the visit place so that the enhanced mobile management entity at the visit place triggers an updating process of a default bearer of the terminal and adds filter information containing the positioning server information in the default bearer of the terminal so as to match uplink and downlink positioning data of the terminal. The invention enables the home cluster control function entity H-TCF to send the positioning server information to the visit enhanced mobile management entity V-eMME in the initial registration process of the roaming place through the telecine terminal, and the filter information containing the positioning server information is added in the default load of the trigger terminal, thereby realizing the positioning service when the telecine terminal roams.

Description

Method and equipment for realizing positioning service of remote halo terminal
Technical Field
The invention relates to the technical field of communication, in particular to a method and equipment for realizing a positioning service of a remote halo terminal.
Background
The trunking communication system is a special wireless communication system which is developed for meeting the demand of industry user command and scheduling and is applied to a specific industry. The cluster communication system has wide application markets in the fields of government departments, public safety, emergency communication, electric power, civil aviation, petroleum, ports and the like. The B-trunC broadband trunking communication system takes TD-LTE as a core technology, combines the characteristics of high rate and large bandwidth of the TD-LTE with the characteristics of resource sharing, quick call establishment, command scheduling and the like in the digital trunking technology, and is a communication system capable of providing high-speed data transmission.
The remote halo revival is a basic service in a cluster system, wherein the remote halo means that the system issues a remote halo command by using an air interface, and a terminal enters a remote halo state after receiving the remote halo command. After the terminal is stunned, the terminal cannot apply for or receive any other services except for the services of attachment, registration, authentication, revival/remoting, positioning and the like. After the terminal is stunned, only the reactivation operation executed by the dispatching station with the authority is accepted, and the terminal can be restored to the normal working state after the reactivation is successful.
Fig. 1 is a schematic flow chart of performing a remote halo operation on a terminal according to the prior art, and as shown in fig. 1, the specific steps are as follows:
1. a dispatching Desk (DC) sends SIP (message) information to a home cluster control function entity (H-TCF) (the dispatching Desk (DC)), and initiates a stunning/stunning operation to specified User Equipment (UE), wherein ptt-Extension header carries an operation identifier pttstun and a user number UDN;
2. H-TCF (DC) sends SIP (message) message to H-TCF (UE) of UE through number analysis, and initiates the operation of telepronation/telephorization to the appointed UE, wherein ptt-Extension header carries operation identification pttstun and user number UDN in the message;
3. H-TCF (UE) sends a remote Stun resurrection Request Terminal-Stun/Kill/Revive-Request message to an enhanced home subscriber server eHSS, wherein the message carries a user UDN and a remote Stun resurrection Type Stun KillRevive-Type remote Stun;
4. after receiving the request of the remote stun and remote resurrection, the eHSS checks whether a user matched with the user UDN exists, and if not, an error is returned; if the Answer exists, the eHSS sets the corresponding user state as 'telepronation', and returns a Terminal-Stun/Kill/Revive-Answer response message to the H-TCF (UE);
5. H-TCF (UE) changes the state of the UE, sets the state of the UE to be an intermediate state of corresponding operation (the telecoverage is in progress), and returns a SIP (200OK) response to the H-TCF (DC);
6. H-TCF (DC) returns a SIP (200OK) response to DC;
7. if the H-TCF judges the remote halo/remote kill operation and the UE is in the registration state, the H-TCF sends an SIP (message) message to the G-TCF of the group to which the UE belongs, wherein the message carries a cluster service identifier pttderegGC and the number num and the group number GDN of the group to which the UE belongs under the G-TCF, and indicates to perform position deregistration;
8. G-TCF returns SIP (200OK), indicates that receives the message of location deregistration;
9. H-TCF (UE) sends SIP (MESSAGE) message to the V-TCF where the UE is located currently, and starts the remote halo operation to the specified UE, wherein ptt-Extension header carries operation identification pttstun/pttkill and user number UDN in the message;
10. the V-TCF sends an SIP (200OK) response to the H-TCF to indicate that the vignetting request is received;
11. the V-TCF sends NAS information KILL/STUN/REVIVE REQUEST to the UE through V-eNME, and the information carries STUN Type telephotography;
12. the UE executes the remote halo operation and returns NAS to the eNME/V-TCF: a KILL/STUN/REVIVE ANSWER message carrying a Result value;
13. the V-TCF sends SIP (MESSAGE) information to the H-TCF of the user, reports the telecine result, and ptt-Extension header carries an operation identifier pttstunresult and an operation result SKRResult (0: success; 1: failure);
14. after the H-TCF receives the report of the telephotone elimination result, the state of the UE is set to be the final state of the corresponding operation, SIP (200OK) information is returned to the V-TCF, and the report of the telephotone elimination result is indicated to be received;
15. the V-eGME sends a Bearer resource command message to a visited serving gateway (V-SGW), the Bearer resource command message carries filter information, and the filter comprises an IP address and a port number of a GIS server;
16. the V-SGW sends a Bearer Resource Command message to a home packet data network gateway (H-PGW), triggers the H-PGW to initiate a Bearer update flow of default Bearer, and increases filter information containing an IP address and a port number of a GIS server.
After the terminal is stunned, the terminal follows the communication protocol, only the uplink and downlink data in the filter list allowing access can use the default bearer, and other data packets are discarded. So that the terminal can only perform positioning after being stunned.
Fig. 2 is a schematic flow chart of a terminal registering at a visited place in the prior art, and as shown in fig. 2, the specific steps are as follows:
1. user Equipment (UE) sends a TRUNK REGISTER REQUEST message to a visited place cluster control function entity (V-TCF)/a visited place enhanced mobile management entity (V-eMMC), wherein the message carries fields of a sounding REGISTER Type, a Terminal Version, a Terminal Type and the like;
2. the V-TCF/V-eMMC sends SIP (Register) request registration to a home location cluster control function entity (H-TCF), and a message header carries information such as UDN, V-TCF domain name, and sounding Register Type of UE;
3. if the trunk Register Type indicates initial registration, the H-TCF initiates a cluster registration request message to an enhanced home subscriber server (eHSS), carries domain name cells of UDN and V-TCF, and indicates whether subscription data of the UE exists in the TCF;
4. and after receiving the request, the eHSS checks the subscription data. If the user exists, recording the registration state of the user and returning a cluster registration response message. If the request message indicates that the H-TCF does not have the subscription data of the UE, carrying user service subscription information in a response message;
5. after H-TCF judges that the cluster registration is successful, returning SIP (200OK) information to V-TCF/V-eNME of the visited place to indicate that the cluster registration is successful, and carrying UDN, User name, emergency call number, period registration time, network capability and the like;
6. the V-TCF/V-eMMC of the visited place replies a TRUNKING REGISTER ACCEPT message to the UE, wherein the message content comprises the cluster capacity of the network side, an emergency number, the periodic registration time and the like;
7. the UE replies a TRUNK REGISTER COMPLETE message to inform the completion of the cluster registration;
8. and the H-TCF obtains the corresponding G-TCF domain name through number analysis according to the group information of the user. The H-TCF sends a request message for updating the position information of the group members to the G-TCF, and the request message carries a V-TCF domain name of a user, a GDN list to which the UE belongs, UEtrunk Capability, Audio Codec Capability, Video Codec Capability and terminalVersion;
9. G-TCF records the V-TCF domain name information of the group member, and returns the position information response message of the group member;
10. the H-TCF sends a UE position deletion request message to the previous V-TCF/V-eGME, and the UE position deletion request message carries UDN information of the UE;
11. the former V-TCF/V-eMMC deletes all locally stored UE information and returns a position deletion response message;
12. when the H-TCF judges that the registration type is initial registration, the user group information of the UE needs to be updated in a full coverage mode, and a group information updating MESSAGE MESSAGE is sent to the V-TCF;
13. the V-TCF returns 200OK to indicate that the MESSAGE is successfully sent;
14. the V-TCF sends a GROUP INFORMATION UPDATE COMMAND message to the UE, wherein the GROUP INFORMATION UPDATE COMMAND message carries the GROUP attribute;
15. UE UPDATEs GROUP data, and returns GROUP INFORMATION UPDATE RESPONSE to V-TCF, and the UPDATE result is carried;
16. the V-TCF sends a group information updating result to the H-TCF to report a MESSAGE MESSAGE, and the group information updating result carries the updating result;
17. the H-TCF returns 200 OK.
As shown in fig. 2, after the remote halo terminal in the prior art restarts the power-on operation at the visited place during roaming, the following technical defects exist: because a new default bearer is established between the roaming of the telephotography terminal and the H-PGW of the visited place, the telephotography terminal can not report the positioning information through the new default bearer, and the telephotography terminal can not carry out the positioning service during roaming.
Disclosure of Invention
Aiming at the defect that the positioning service cannot be carried out after the remote halo terminal roams in the prior art, the invention provides a method and equipment for realizing the positioning service of the remote halo terminal.
One aspect of the present invention provides a method for implementing a positioning service of a remote halo terminal, including: and confirming that the terminal is in a remote halo state and is in initial registration, and sending positioning server information to the enhanced mobile management entity at the visit place so that the enhanced mobile management entity at the visit place triggers an updating process of a default bearer of the terminal and adds filter information containing the positioning server information in the default bearer of the terminal so as to match uplink and downlink positioning data of the terminal.
Wherein the step of sending the location server information to the visitor enhanced mobility management entity further comprises: returning a successful response message carrying the positioning server information to a visited place cluster control function entity so that the visited place cluster control function entity sends the positioning server information to the visited place enhanced mobile management entity; and the positioning server information comprises the IP address and the port number of the home GIS server of the terminal.
Another aspect of the present invention provides a method for implementing a positioning service of a remote halo terminal, including: receiving positioning server information of a terminal sent by a home location cluster control function entity, wherein the terminal is in a remote halo state and is in initial registration; and according to the positioning server information, by triggering an updating process of a default bearer of the terminal, adding filter information containing the positioning server information in the default bearer so as to match the uplink and downlink positioning data of the terminal.
Wherein, the step of receiving the location server information of the terminal sent by the home cluster control function entity further comprises: receiving the positioning server information sent from the home location cluster control function entity through a visited location cluster control function entity, wherein the home location cluster control function entity returns a successful response message to the visited location cluster control function entity, and the successful response message carries the positioning server information; and the positioning server information comprises the IP address and the port number of the home GIS server of the terminal.
Wherein, the step of adding filter information containing the positioning server information in the default bearer to match the uplink and downlink positioning data of the terminal by triggering an update process of the default bearer of the terminal according to the positioning server information further comprises: and sending a bearer resource command message carrying the filter information to a visited place service gateway, so that the visited place service gateway sends the bearer resource command message to a visited place packet data network gateway to trigger an updating process of the default bearer, and filter information containing the IP address and the port number of the home GIS server of the terminal is added in the default bearer.
The method further comprises the following steps: confirming that a plurality of special bearers need to be deactivated, and sending a bearer deleting command message to a visited place service gateway so that the visited place service gateway sends the bearer deleting command message to a visited place packet data network gateway to trigger a deactivation process of the special bearers; wherein the delete bearer command message contains information of the plurality of dedicated bearers that need to be deactivated.
Yet another aspect of the present invention provides a home cluster control function entity, including: and the sending module is used for confirming that the terminal is in a remote halo state and is in initial registration, and sending positioning server information to the enhanced mobile management entity at the visit place so that the enhanced mobile management entity at the visit place triggers an updating process of default bearing of the terminal, and filter information containing the positioning server information is added in the default bearing of the terminal so as to match uplink and downlink positioning data of the terminal.
Another aspect of the present invention provides an apparatus for implementing a positioning service of a remote halo terminal, including: at least one processor; and at least one memory communicatively coupled to the processor, wherein: the memory stores program instructions executable by the processor, and the processor calls the program instructions to execute a method for realizing the telecine terminal positioning service, such as: and confirming that the terminal is in a remote halo state and is in initial registration, and sending positioning server information to the enhanced mobile management entity at the visit place so that the enhanced mobile management entity at the visit place triggers an updating process of a default bearer of the terminal and adds filter information containing the positioning server information in the default bearer of the terminal so as to match uplink and downlink positioning data of the terminal.
Yet another aspect of the present invention provides a visitor enhanced mobile management entity, including: the system comprises a receiving module, a sending module and a receiving module, wherein the receiving module is used for receiving the positioning server information of a terminal sent by a home location cluster control function entity, and the terminal is in a remote halo state and is initially registered; and the triggering module is used for increasing filter information containing the positioning server information in the default bearer to match the uplink and downlink positioning data of the terminal by triggering the updating process of the default bearer of the terminal according to the positioning server information.
Another aspect of the present invention provides an apparatus for implementing a positioning service of a remote halo terminal, including: at least one processor; and at least one memory communicatively coupled to the processor, wherein: the memory stores program instructions executable by the processor, and the processor calls the program instructions to execute a method for realizing the telecine terminal positioning service, such as: receiving positioning server information of a terminal sent by a home location cluster control function entity, wherein the terminal is in a remote halo state and is in initial registration; and according to the positioning server information, by triggering an updating process of a default bearer of the terminal, adding filter information containing the positioning server information in the default bearer so as to match the uplink and downlink positioning data of the terminal.
The method and the equipment for realizing the positioning service of the telecommand terminal provided by the invention have the advantages that the home cluster control function entity H-TCF sends the positioning server information to the visit enhanced mobile management entity V-eMMC E in the initial registration process of the telecommand terminal in the roaming place, and the filter information containing the positioning server information is added in the default load of the trigger terminal, so that the positioning service of the telecommand terminal in the roaming process is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic flow chart of a prior art for performing a remote halo operation on a terminal;
fig. 2 is a schematic flow chart of a terminal registering at a visited place according to the prior art;
fig. 3 is a schematic flowchart of a method for implementing a positioning service of a remote halo terminal according to an embodiment of the present invention;
fig. 4 is a schematic flowchart of a process of triggering default bearer update in a method for implementing a positioning service of a remote halo terminal according to an embodiment of the present invention;
fig. 5 is a schematic flowchart of a process of registering a remote halo terminal at a visited place in a method for implementing a positioning service of the remote halo terminal according to an embodiment of the present invention;
fig. 6 is a schematic flowchart of performing a remote halo operation on a terminal in a method for implementing a location service of a remote halo terminal according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of an apparatus for implementing a positioning service of a remote halo terminal according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of an enhanced mobility management entity for visited sites according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of an apparatus for implementing a positioning service of a remote halo terminal according to another embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments, but not all embodiments, of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a method for realizing the positioning service of a remote halo terminal, which comprises the following steps: and confirming that the terminal is in a remote halo state and is in initial registration, and sending positioning server information to the enhanced mobile management entity at the visit place so that the enhanced mobile management entity at the visit place triggers an updating process of a default bearer of the terminal and adds filter information containing the positioning server information in the default bearer of the terminal so as to match uplink and downlink positioning data of the terminal.
The terminal ue (user equipment) is also called user equipment, and the user equipment is accessed to the base station through a wireless air interface and is accessed to the core network.
Wherein the vignetting is a basic service in the trunking communication system. And the dispatching station (DC) triggers the cluster core network to send an air interface message to carry out remote halo reviving operation on the appointed UE by sending an instruction to the cluster core network. After the terminal is stunned, the terminal cannot apply for or receive any other services except for the services of attachment, registration, authentication, revival/remoting, positioning and the like. After the UE is stunned, only the reactivation operation executed by the scheduling station with the authority is accepted, and the terminal can be restored to a normal working state after the reactivation is successful.
Wherein, enhanced Mobility Management entity emme (evolved Mobility Management entity): the method is to enhance cluster functions on the basis of MME defined by 3GPP standards, including cluster NAS signaling and security thereof, xGW selection, cluster bearer management, mobility management of cluster services, access control and session management. The V-eMME is a visited enhanced mobility management entity.
The default bearer is one of EPS bearers, and the EPS bearer refers to a QoS transmission guarantee for providing a certain characteristic between the UE and a PDN (public data network), and is divided into a default bearer and a dedicated bearer. The default bearer is a user bearer of data and signaling meeting default QoS, and when the default bearer can understand that the UE is attached to a network, the default bearer is established along with the establishment of a PDN link and is destroyed along with the removal of the PDN link, so that a permanent online IP transmission service is provided for the user; the dedicated bearer is established on the basis of the PDN link establishment in order to provide certain QoS transmission requirements (the default bearer cannot be met). The QoS requirements of the dedicated bearer are typically higher than the QoS requirements of the default bearer.
Wherein, the updating process of the default bearer can modify the default bearer of the UE, and filter information is added to the default bearer; when the UE carries out uplink data, the UE can use the default bearer only when the uplink data of the filter information list allowed to be accessed is carried, and other data can be discarded; when data is downlink data, the data can be normally sent when the IP header information of the downlink data packet belongs to the filter information list allowing access, otherwise, the data is discarded. Since the filter information includes the positioning server information, the UE can perform uplink positioning data.
The cluster control function entity TCF is responsible for dispatching management of cluster service, and has the main functions of supporting multimedia cluster service dispatching including voice, video and data, authentication and authorization of the cluster service, registration and cancellation, establishment and release of cluster call, speaking right management, and cluster group information subscription and update; the V-TCF is a visited place cluster control function entity, and the H-TCF is a home place cluster control function entity.
In the method provided in this embodiment, specifically, after the UE is telephonically located at the home location, if the telephonically located UE roams, after the UE restarts the power-on operation at a visited location different from the home location, initial cluster registration needs to be performed at the visited location. The H-TCF may determine a state of the UE, and if it is determined that the UE is in a halo state and is initially registered, the H-TCF needs to send location server information to the V-eMME. Wherein the H-TCF can sense that the UE is stunned through an interface between the TCFs.
After receiving the positioning server information sent by the H-TCF, the V-eMMC can trigger the updating process of the default bearer of the UE to modify the data in the default bearer; adding filter information to the default bearer, wherein the filter information comprises positioning server information. After the default bearer is updated, the positioning service after UE telecopic can be realized.
After the filter information is added in the default bearer of the UE, the V-eGME rejects a special bearer establishment request initiated by the UE/network according to the vignetting identification; the halo UE follows the 23.401 protocol, only the uplink data in the filter list allowed to access can use the default bearer, and other packets are discarded. Because the filter information contains the positioning server information, and the positioning server information belongs to the list range of the filter, the positioning data uplink by the telephotographic UE can be routed normally, so that the telephotographic terminal can perform positioning service after roaming.
In the method for realizing the positioning service of the telephotography terminal provided by the embodiment of the invention, the home cluster control function entity H-TCF sends the positioning server information to the visit enhanced mobile management entity V-eMMC E in the initial registration process of the telephotography terminal at the roaming place, and the filter information containing the positioning server information is added in the default load of the trigger terminal, thereby realizing the positioning service when the telephotography terminal roams.
In another embodiment provided by the present invention, the step of sending the location server information to the visitor enhanced mobility management entity further comprises: returning a successful response message carrying the positioning server information to a visited place cluster control function entity so that the visited place cluster control function entity sends the positioning server information to the visited place enhanced mobile management entity; and the positioning server information comprises the IP address and the port number of the home GIS server of the terminal.
The Geographic position System GIS (Geographic Information System/Geo-Information System) is a specific spatial Information System, and is used to collect Geographic distribution data, and display Information such as objects and object attributes to be displayed on a map, so as to achieve the purpose of Information visualization.
When the H-TCF judges that the cluster registration is successful, firstly, a successful response message, such as an SIP (200OK) message, is returned to the V-TCF to indicate that the cluster registration is successful; the SIP message carries the conventional information such as UDN, User name, emergency call number, period registration time and network capability; if the UE is judged to be in the vignetting state and is initially registered, the IP address and the port number information of the GIS server are required to be carried in an SIP (200OK) message so as to realize the positioning service of the vignetting UE at the visit place.
And after receiving the positioning server information, the V-TCF sends the positioning server information to the V-eGME. In order to implement the positioning service when the vignetting UE roams, a GIS server IP address and a port number need to be added to a TCF interface in the registration process. Table 1 shows an interface between an H-TCF and a V-TCF modified for a registration response extension parameter provided in an embodiment of the present invention. The method comprises the following specific steps:
200OK message-successful response to registration request
The direction is as follows: H-TCF- > V-TCF
Description of the function: H-TCF issuing response of successful registration
Whether to expand: is that the header field extension is optional
Table 1 registration response extension parameter
Figure BDA0001321947880000121
Figure BDA0001321947880000131
Extended by an inter-TCF 200OK message (successful response to registration request): and the H-TCF judges that the terminal is in a remote halo state, when sending a 200OK message to the V-TCF, the H-TCF adds GIS server address and port number information in the interface message, and triggers the V-MME to send a Bearer Resource Command message to the V-SGW, thereby supporting the positioning during roaming.
Fig. 3 is a schematic flowchart of a method for implementing a positioning service of a remote halo terminal according to an embodiment of the present invention, where as shown in fig. 3, the method includes: 301, receiving location server information of a terminal sent by a home location cluster control function entity, wherein the terminal is in a vignetting state and is in initial registration; 302, according to the positioning server information, by triggering an update flow of a default bearer of the terminal, adding filter information including the positioning server information in the default bearer to match the uplink and downlink positioning data of the terminal.
In step 301, after the UE is telecommanded at the home location, if the telecommand UE roams, after the UE restarts the power-on operation at a visited location different from the home location, initial cluster registration needs to be performed at the visited location. The H-TCF can judge the state of the UE, and if the UE is judged to be in the vignetting state and is initially registered, the V-eGME can receive the positioning server information sent by the H-TCF. Wherein the H-TCF can sense that the UE is stunned through an interface between the TCFs.
In step 302, after receiving the location server information sent by the H-TCF, the V-eMME may trigger an update procedure of a default bearer of the UE to modify data in the default bearer; adding filter information to the default bearer, wherein the filter information comprises positioning server information. After the default bearer is updated, the halo UE can transmit the positioning data through the default bearer.
After the filter information is added in the default bearer of the UE, the V-eGME rejects a special bearer establishment request initiated by the UE/network according to the vignetting identification; the halo UE follows the 23.401 protocol, only the uplink data in the filter list allowed to access can use the default bearer, and other packets are discarded. Because the filter information contains the positioning server information, and the positioning server information belongs to the list range of the filter, the positioning data uplink by the telephotographic UE can be routed normally, so that the telephotographic terminal can perform positioning service after roaming.
In the method for realizing the positioning service of the telephotography terminal provided by the embodiment of the invention, the home cluster control function entity H-TCF sends the positioning server information to the visit enhanced mobile management entity V-eMMC E in the initial registration process of the telephotography terminal at the roaming place, and the filter information containing the positioning server information is added in the default load of the trigger terminal, thereby realizing the positioning service when the telephotography terminal roams.
In another embodiment provided by the present invention, the step of receiving the location server information of the terminal sent by the home cluster control function entity further includes: receiving the positioning server information sent from the home location cluster control function entity through a visited location cluster control function entity, wherein the home location cluster control function entity returns a successful response message to the visited location cluster control function entity, and the successful response message carries the positioning server information; and the positioning server information comprises the IP address and the port number of the home GIS server of the terminal.
When the H-TCF judges that the cluster registration is successful, firstly, a successful response message, such as an SIP (200OK) message, is returned to the V-TCF to indicate that the cluster registration is successful; the SIP message carries the conventional information such as UDN, User name, emergency call number, period registration time and network capability; if the UE is judged to be in the vignetting state and is initially registered, the IP address and the port number information of the GIS server are required to be carried in an SIP (200OK) message so as to realize the positioning service of the vignetting UE at the visit place. And after receiving the positioning server information, the V-TCF sends the positioning server information to the V-eGME. By adding the IP address and the port number of the GIS server of the home location of the UE in the filter information, the UE can bear uplink positioning data by default.
In another embodiment provided by the present invention, the step of adding filter information including the location server information to the default bearer to match the uplink and downlink location data of the terminal by triggering an update procedure of the default bearer of the terminal according to the location server information further includes: and sending a bearer resource command message carrying the filter information to a visited place service gateway, so that the visited place service gateway sends the bearer resource command message to a visited place packet data network gateway to trigger an updating process of the default bearer, and filter information containing the IP address and the port number of the home GIS server of the terminal is added in the default bearer.
The serving gateway sgw (serving gateway) is an important network element in the EPC of the mobile communication network. The EPC network is actually an evolved version of the PS domain of the original 3G core network, and the function and role of the SGW are equivalent to those of the user plane of the SGSN network element of the original 3G core network, i.e. in the new EPC network, the control plane function and the media plane function are separated more thoroughly. Wherein, the V-SGW is a visited place service gateway.
The packet data network gateway pgw (pdn gateway) is used as a bearer for the user data service and the VoLTE service, is responsible for the IP address assignment of the user, routing and forwarding of data packets, and charging of services related to the user, and can provide a function of locating a session with an external packet data network. In the LTE network, the UE establishes a Default Bearer (Default Bearer) with the PGW and allocates an IP address to the UE while attaching, thereby providing the UE with a "permanent online" functional characteristic. The PGW is also responsible for allocating an IP address for the accessed UE, and after that, the transmission of the data packet is performed under the IP address, and the address type allocated by the PGW includes IPV4, IP V6 or IPV4+ IPV 6. And the visited packet data network gateway V-PGW is the packet data network gateway of the visited place of the UE in roaming.
Fig. 4 is a schematic flow diagram illustrating a process of triggering a default Bearer update in a method for implementing a positioning service of a telephonic UE according to an embodiment of the present invention, as shown in fig. 4, in step 401, a Bearer Resource Command message is sent by a V-eMME to a V-SGW, where the message carries filter information of a default Bearer, and the filter information includes an IP address and a port number of a GIS server to which a telephonic UE belongs.
In step 402, the V-SGW sends a Bearer Resource Command message to the V-PGW, where the message also carries filter information of a default Bearer, and the filter information includes an IP address and a port number of a GIS server in the home of the telephotographic UE.
In step 403, the V-PGW triggers an update procedure of a default Bearer of the telephotonic UE according to the received Bearer Resource Command message, and adds filter information including an IP address and a port number of the GIS server to which the UE belongs to the default Bearer.
After adding the filter information, the V-PGW matches the received uplink data packet: if the uplink data packet belongs to the list range of the filter (filter), allowing the data packet to be normally routed; if the uplink data packet does not belong to the list range of the filter, discarding the data packet; when data is downlink, the data can be normally sent when IP header information of a downlink data packet belongs to a filter information list allowing access, otherwise, the data is discarded, and thus, positioning service after the UE roaming is realized.
In another embodiment provided by the present invention, the method further comprises: confirming that a plurality of special bearers need to be deactivated, and sending a bearer deleting command message to a visited place service gateway so that the visited place service gateway sends the bearer deleting command message to a visited place packet data network gateway to trigger a deactivation process of the special bearers; wherein the delete bearer command message contains information of the plurality of dedicated bearers that need to be deactivated.
According to the existing standard, after the UE is stunned, the UE or the dedicated bearer initiated by the network needs to be deactivated or deleted. The modification of the default Bearer filter and the deletion of the proprietary Bearer are triggered by sending a Bearer Resource Command message to the SGW, typically by means of the eMME; however, when there are multiple dedicated bearers that need to be deactivated or deleted, the eMME needs to send multiple Bearer Resource Command messages, and the system efficiency is low. In view of the above drawbacks, the embodiment of the present invention optimizes a deactivation process in which multiple dedicated bearers exist, specifically as follows:
and if the V-eMME judges that one or more special bearers are required to be deleted or deactivated, sending a Delete Bearer Command message to the V-SGW, wherein the message comprises information of the plurality of special bearers required to be deactivated, and the information of the plurality of special bearers can be contained in the Delete Bearer Command message in a list form.
And after receiving the Delete BearerCommand message, the V-SGW sends the Delete BearerCommand message to the V-PGW.
After receiving the Delete Bearer Command message, the V-PGW may trigger the deletion or deactivation process of the multiple dedicated bearers, so that the deletion process of the multiple dedicated bearers may be implemented through one Delete Bearer Command message.
It should be noted that the above deactivation procedure for multiple dedicated bearers is not limited to the initial registration of the telephotonic UE at the visited place, but may also be applied to, for example, a telephotonic process of the UE and other procedures that require deletion or deactivation of the dedicated bearers.
Fig. 5 is a schematic flow chart of registration of a remote halo terminal at a visited place in the method for implementing a positioning service of the remote halo terminal according to the embodiment of the present invention, and as shown in fig. 5, the specific steps are as follows:
1. UE sends TRUNK REGISTER REQUEST message to V-TCF/V-eMMC of visit place, the message carries fields such as trunk REGISTER Type, Terminal Version, Terminal Type, etc.;
2. the visited place V-TCF/V-eMMC sends SIP (Register) request registration to the home place H-TCF, and the message header carries information such as UDN, visited place V-TCF domain name, and tracking Register Type of the UE;
3. if the trunk Register Type indicates initial registration, the H-TCF initiates a cluster registration request message to the eHSS, carries the UDN and the visited V-TCF domain name cell, and indicates whether subscription data of the UE exists in the TCF;
4. and after receiving the request, the eHSS checks the subscription data. If the user exists, recording the registration state of the user and returning a cluster registration response message. If the request message indicates that the H-TCF does not have the subscription data of the UE, carrying user service subscription information in a response message;
5. after H-TCF judges that the cluster registration is successful, returning SIP (200OK) information to V-TCF/V-eNME of the visited place to indicate that the cluster registration is successful, and carrying UDN, User name, emergency call number, period registration time, network capability and the like; in addition, the H-TCF judges the state of the UE again, if the UE is in a vignetting state and is in initial registration, GIS Server IP address and port number information need to be carried in an SIP (200OK) message;
6. the visited place V-TCF/V-eMMC replies a TRUNK REGISTER ACCEPT message to the UE, wherein the message content comprises the network side cluster capability, the emergency number, the periodic registration time and the like:
7. the UE replies to a trunk REGISTER COMPLETE message informing of the completion of the cluster registration.
8. The V-eMMC judges that the UE state is in a remote halo state, and then sends a Bearer Resource Command message to the V-SGW, wherein the message carries information of a filter of a default Bearer, and the filter comprises an IP address and a port number of a GIS (geographic information system) server of the UE home location;
9. the V-SGW sends a Bearer Resource Command message to the V-PGW, triggers the PGW to trigger a Bearer update flow of default Bearer, and increases filter information containing an IP address and a port number of a GIS server;
10. the V-eMMC judges that if a special bearer needs to be deleted, a Delete BearerCommand message is sent to the V-SGW, and the message contains bearer list information needing to be deleted;
11. the V-SGW sends a Delete Bearer Command message to the V-PGW to trigger the PGW to initiate a plurality of special Bearer deletion processes;
12. and the H-TCF obtains the corresponding G-TCF domain name through number analysis according to the group information of the user. The H-TCF sends a request message for updating the position information of the group members to the G-TCF, and the request message carries a V-TCF domain name of a user, a GDN list to which the UE belongs, UEtrunk Capability, Audio Codec Capability, Video Codec Capability and terminalVersion;
13. G-TCF records the V-TCF domain name information of the group member, and returns the position information response message of the group member;
14. the H-TCF sends a UE position deletion request message to the previous V-TCF/V-eGME, and the UE position deletion request message carries UDN information of the UE;
15. the former V-TCF/V-eMMC deletes all locally stored UE information and returns a position deletion response message;
16. when the H-TCF judges that the registration type is initial registration, the user group information of the UE needs to be updated in a full coverage mode, and a group information updating MESSAGE MESSAGE is sent to the V-TCF;
17. the V-TCF returns 200OK to indicate that the MESSAGE is successfully sent;
18. the V-TCF sends a GROUP INFORMATION UPDATE COMMAND message to the UE, wherein the GROUP INFORMATION UPDATE COMMAND message carries the GROUP attribute;
19. UE UPDATEs GROUP data, and returns GROUP INFORMATION UPDATE RESPONSE to V-TCF, and the UPDATE result is carried;
20. the V-TCF sends a group information updating result to the H-TCF to report a MESSAGE MESSAGE, and the group information updating result carries the updating result;
21. the H-TCF returns 200 OK.
Fig. 6 is a schematic flow chart of performing a telecine operation on a terminal in a method for implementing a positioning service of a telecine terminal according to an embodiment of the present invention, and as shown in fig. 6, the following two steps are added to an existing process of telecine:
17. the V-eMMC judges that a special Bearer needs to be deactivated, and sends a Delete Bearer Command message to the V-SGW, wherein the message carries the information of the special Bearer list needing to be deleted;
18. and the V-SGW sends a Delete Bearer Command message to the V-PGW, wherein the message carries the information of the special Bearer list needing to be deleted, and triggers the PGW to initiate a special Bearer deactivation process.
The embodiment of the present invention further provides a home cluster control function entity, including: and the sending module is used for confirming that the terminal is in the vignetting state and is in initial registration, and sending the positioning server information to the visit place enhanced mobile management entity so that the visit place enhanced mobile management entity can increase the filter information containing the positioning server information in the default bearer of the terminal to support the positioning service of the vignetting terminal by triggering the updating process of the default bearer of the terminal.
Specifically, after the UE is telephonically located at the home location, if the telephonically located UE roams, after the UE is powered on again at a visited location different from the home location, initial cluster registration needs to be performed at the visited location. The sending module may determine a state of the UE, and if it is determined that the UE is in a halo state and is initially registered, the sending module needs to send the location server information to the V-eMME me. Wherein the H-TCF can sense that the UE is stunned through an interface between the TCFs.
After receiving the positioning server information sent by the sending module, the V-eGME can trigger the updating process of the default bearer of the UE to modify the data in the default bearer; adding filter information to the default bearer, wherein the filter information comprises positioning server information. After the default bearer is updated, the halo UE can transmit the positioning data through the default bearer.
After the filter information is added in the default bearer of the UE, the V-eGME rejects a special bearer establishment request initiated by the UE/network according to the vignetting identification; the halo UE follows the 23.401 protocol, only the uplink data in the filter list allowed to access can use the default bearer, and other packets are discarded. Because the filter information contains the positioning server information, and the positioning server information belongs to the list range of the filter, the positioning data uplink by the telephotographic UE can be routed normally, so that the telephotographic terminal can perform positioning service after roaming.
The home location cluster control function entity provided by the embodiment of the invention sends the positioning server information to the visit location enhanced mobile management entity V-eMME through the initial registration process of the telecine terminal in the roaming place, and triggers the filter information containing the positioning server information to be added in the default bearer of the terminal, thereby realizing the positioning service when the telecine terminal roams.
Fig. 7 is a schematic structural diagram of an apparatus for implementing a positioning service of a remote halo terminal according to an embodiment of the present invention, and as shown in fig. 7, the apparatus includes: at least one processor 701; and at least one memory 702 communicatively coupled to the processor 701, wherein: the memory 702 stores program instructions executable by the processor 701, and the processor 701 invokes the program instructions to perform the method for implementing a remote halo terminal location service provided in the foregoing embodiments, for example, the method includes: and confirming that the terminal is in a remote halo state and is in initial registration, and sending positioning server information to the enhanced mobile management entity at the visit place so that the enhanced mobile management entity at the visit place triggers an updating process of a default bearer of the terminal and adds filter information containing the positioning server information in the default bearer of the terminal so as to match uplink and downlink positioning data of the terminal.
Fig. 8 is a schematic structural diagram of an enhanced mobility management entity at a visited place according to an embodiment of the present invention, as shown in fig. 8, including: a receiving module 801, configured to receive location server information of a terminal sent by a home trunking control function entity, where the terminal is in a halo state and is initially registered; a triggering module 802, configured to, according to the location server information, trigger an update procedure of a default bearer of the terminal, and add filter information including the location server information to the default bearer to match the uplink and downlink location data of the terminal.
Specifically, after the UE is telephonically located at the home location, if the telephonically located UE roams, after the UE is powered on again at a visited location different from the home location, initial cluster registration needs to be performed at the visited location. The H-TCF may determine the state of the UE, and if it is determined that the UE is in the halo state and is initially registered, the receiving module 801 may receive the location server information sent by the H-TCF. Wherein the H-TCF can sense that the UE is stunned through an interface between the TCFs.
After receiving the positioning server information sent by the H-TCF, the receiving module 801 may trigger the triggering module 802 to trigger an update procedure of a default bearer of the UE, so as to modify data in the default bearer; adding filter information to the default bearer, wherein the filter information comprises positioning server information. After the default bearer is updated, the halo UE can transmit its positioning data through the default bearer.
After the filter information is added in the default bearer of the UE, the V-eGME rejects a special bearer establishment request initiated by the UE/network according to the vignetting identification; the halo UE follows the 23.401 protocol, only the uplink data in the filter list allowed to access can use the default bearer, and other packets are discarded. Because the filter information contains the positioning server information, and the positioning server information belongs to the list range of the filter, the positioning data uplink by the telephotographic UE can be routed normally, so that the telephotographic terminal can perform positioning service after roaming.
The visit place enhanced mobile management entity provided by the embodiment of the invention receives the positioning server information sent by the attribution place cluster control function entity in the initial registration process of the roaming place through the telecine terminal, and triggers the filter information containing the positioning server information to be added in the default load of the terminal, thereby realizing the positioning service when the telecine terminal roams.
Fig. 9 is a schematic structural diagram of an apparatus for implementing a positioning service of a remote halo terminal according to another embodiment of the present invention, as shown in fig. 9, the apparatus includes: at least one processor 901; and at least one memory 902 communicatively coupled to the processor 901, wherein: the memory 902 stores program instructions executable by the processor 901, and the processor 901 calls the program instructions to be able to execute the method for implementing a remote halo terminal location service provided by the foregoing embodiments, for example, including: receiving positioning server information of a terminal sent by a home location cluster control function entity, wherein the terminal is in a remote halo state and is in initial registration; and according to the positioning server information, by triggering an updating process of a default bearer of the terminal, adding filter information containing the positioning server information in the default bearer so as to match the uplink and downlink positioning data of the terminal.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (8)

1. A method for realizing the location service of a remote halo terminal is characterized by comprising the following steps:
confirming that a terminal is in a remote halo state and is initially registered, and sending positioning server information to a visit place enhanced mobile management entity so that the visit place enhanced mobile management entity increases filter information containing the positioning server information in a default bearer of the terminal to match uplink and downlink positioning data of the terminal by triggering an updating process of the default bearer of the terminal;
wherein the step of sending the location server information to the visitor enhanced mobility management entity further comprises:
returning a successful response message carrying the positioning server information to a visited place cluster control function entity so that the visited place cluster control function entity sends the positioning server information to the visited place enhanced mobile management entity;
and the positioning server information comprises the IP address and the port number of the home GIS server of the terminal.
2. A method for realizing the location service of a remote halo terminal is characterized by comprising the following steps:
receiving positioning server information of a terminal sent by a home location cluster control function entity, wherein the terminal is in a remote halo state and is in initial registration;
according to the positioning server information, by triggering an updating process of a default bearer of the terminal, adding filter information containing the positioning server information in the default bearer to match positioning data of an uplink and a downlink of the terminal;
wherein, the step of receiving the location server information of the terminal sent by the home cluster control function entity further comprises:
receiving the positioning server information sent from the home location cluster control function entity through a visited location cluster control function entity, wherein the home location cluster control function entity returns a successful response message to the visited location cluster control function entity, and the successful response message carries the positioning server information;
and the positioning server information comprises the IP address and the port number of the home GIS server of the terminal.
3. The method according to claim 2, wherein the step of adding filter information containing the positioning server information to the default bearer to match the uplink and downlink positioning data of the terminal by triggering an update procedure of the default bearer of the terminal according to the positioning server information further comprises:
and sending a bearer resource command message carrying the filter information to a visited place service gateway, so that the visited place service gateway sends the bearer resource command message to a visited place packet data network gateway to trigger an updating process of the default bearer, and filter information containing the IP address and the port number of the home GIS server of the terminal is added in the default bearer.
4. The method of claim 2, further comprising:
confirming that a plurality of special bearers need to be deactivated, and sending a bearer deleting command message to a visited place service gateway so that the visited place service gateway sends the bearer deleting command message to a visited place packet data network gateway to trigger a deactivation process of the special bearers;
wherein the delete bearer command message contains information of the plurality of dedicated bearers that need to be deactivated.
5. A home cluster control function entity, comprising:
a sending module, configured to determine that a terminal is in a halo state and is in initial registration, and send location server information to a visited enhanced mobility management entity, so that the visited enhanced mobility management entity increases filter information including the location server information in a default bearer of the terminal to match uplink and downlink location data of the terminal by triggering an update procedure of the default bearer of the terminal;
wherein the step of sending the location server information to the visitor enhanced mobility management entity further comprises:
returning a successful response message carrying the positioning server information to a visited place cluster control function entity so that the visited place cluster control function entity sends the positioning server information to the visited place enhanced mobile management entity;
and the positioning server information comprises the IP address and the port number of the home GIS server of the terminal.
6. An apparatus for implementing a location service of a remote halo terminal, comprising:
at least one processor; and
at least one memory communicatively coupled to the processor, wherein:
the memory stores program instructions executable by the processor, the processor invoking the program instructions to perform the method of claim 1.
7. A visitor-location enhanced mobility management entity, comprising:
the system comprises a receiving module, a sending module and a receiving module, wherein the receiving module is used for receiving the positioning server information of a terminal sent by a home location cluster control function entity, and the terminal is in a remote halo state and is initially registered;
the triggering module is used for increasing filter information containing the positioning server information in a default bearer to match the uplink and downlink positioning data of the terminal by triggering the updating process of the default bearer of the terminal according to the positioning server information;
wherein, the step of receiving the location server information of the terminal sent by the home cluster control function entity further comprises:
receiving the positioning server information sent from the home location cluster control function entity through a visited location cluster control function entity, wherein the home location cluster control function entity returns a successful response message to the visited location cluster control function entity, and the successful response message carries the positioning server information;
and the positioning server information comprises the IP address and the port number of the home GIS server of the terminal.
8. An apparatus for implementing a location service of a remote halo terminal, comprising:
at least one processor; and
at least one memory communicatively coupled to the processor, wherein:
the memory stores program instructions executable by the processor, the processor invoking the program instructions to perform the method of any of claims 2 to 4.
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