WO2008052396A1

WO2008052396A1 - An apparatus and method for realizing number portability and number mixture in local network

Info

Publication number: WO2008052396A1
Application number: PCT/CN2006/003671
Authority: WO
Inventors: Jianming LÜ; Wei Wang; Kun Zhu; Jianhong Mu; Minjie He; Yüna ZHU
Original assignee: Zte Corporation
Priority date: 2006-10-31
Filing date: 2006-12-29
Publication date: 2008-05-08

Abstract

An apparatus and method for realizing number portability and number mixture in the local network, it realizes number mixture and number 112323 portability between networks of different type in the local network. The apparatus includes signaling process module, data storage module, operation and maintenance module. The method for realizing number portability in local network includes: (1)receiving the request information of the local network user,(2)judging whether the request type is coincident with the network type to which user is attached, if it is coincident, transmitting the message to the home location register, and if it is not coincident, returning the network pass number,(3)the initiator of the request message accesses the gateway bureau to which user is attached according to the network pass number and completes the call procedure. The method for realizing number mixture in local network includes: (1)sending the route request to the gateway home location register,(2)the gateway home location register locates the home location register. This invention realizes the portability and mixture of all the users' numbers in local network, and simplifies the management of the numbers.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to communication network technologies, and more particularly to a numbering technique in a communication network. BACKGROUND OF THE INVENTION The local network of a fixed network operator has a PSTN (Public Telephone Switching Network) and a PHS (Personal Handyphone System) network, and has realized or partially realized network intelligent transformation. Some have merged PCS HLR (Personal Handheld Telephone System Home Location Register), user 3G license issuance, and CDMA (Code Division Multiple Access) network mergers, which make multiple networks exist on the local network, and number planning and management is very complicated. The MNP (Mobile Number Portability) function is defined in the 3GPP 23.066 protocol. The MNP mainly implements number portability between multiple operators of a mobile network, but cannot support number portability between multiple different types of networks on the local network. Existing devices that support mixed-numbering are mainly SHLR (Integrated Intelligent Home Location Register), which stores user data of all networks in a centralized manner and supports multiple signaling at the same time. When implementing number portability or hybrid numbering of different networks, SHLR must be upgraded and the network structure changed, such as the fixed network operator's local network, PSTN network and PHS network, fixed user data stored on SHLR, PHS User data is stored on the PHS-HLR. To use SHLR to support mixed number and number portability, SHLR must be upgraded to support the converged version, and all data on the PHS-HLR must be stored on the SHLR. Then, this requires changing the original network structure, which makes the network unstable and reliable. SUMMARY OF THE INVENTION The present invention is directed to providing a solution for number mixing and number portability between a plurality of different types of networks of a local network. In order to achieve the above object, the present invention includes: a device for implementing number portability and mixing and numbering in a local network, where the device is a gateway home location register, including a signaling processing module, used for signaling processing, by a signaling network, and local attribution. Location register and The network entity is connected; the data storage module is configured to store the number portability table and the configuration table; the operation and maintenance module is configured to be responsible for detecting and maintaining the system; wherein, the signaling processing module receives the user request information, and queries the data storage module by querying The number portability table or the configuration table finds the home location register to which the user belongs, and the operation and maintenance module detects and maintains the system; and the signaling processing module, the data storage module, and the operation and maintenance module communicate through the high speed Ethernet. The data storage module is a physical data module or a memory data module. The data stored in the number portability table of the data storage module includes: a user identifier, a user number, a global code number of the home location register, a signaling point code of the home location register, a network type of the home location register, and a corresponding network type. Cross the network number. The data stored in the configuration table of the data storage module includes: a user identifier prefix, a user number prefix, a global code address of the home location register, a network type of the home location register, and an over-network number of the corresponding network type. The local network implements the method of number portability, including:

(1) The gateway home location register receives the request message of the local network user via the signaling processing module;

(2) The gateway home location register determines whether the type of the request message is consistent with the network type to which the user belongs. If they are consistent, the message is forwarded to the home location register that the user actually belongs by querying the number portability table or the configuration table of the data storage module, and If the inconsistency, the network number is returned; (3) the originating end of the request message is connected to the gateway office to which the user belongs according to the network number, and the gateway office of the home network initiates a request to the gateway home location register to complete the service operation. The request information of the local network user includes a personal handy phone system mobile application part message, a mobile application part + message, an ISDN user part + message, a 3GPP mobile application part message, a CDMA mobile application part message. The local network implements a method for number mixing and numbering, including:

(1) The switch sends the user's request message to the gateway home location register; (2) The gateway home location register locates the home location register to which the user actually belongs according to the number portability information, and completes the mixing and numbering. The request is a location update request, a route request, a short message routing request, or a supplementary service registration request. Compared with the prior art, the present invention can realize the mixing and number porting of all user numbers of the local network, so that the number management is very simple, and the user can easily experience any kind of network service without changing the number. In the case of increasingly fierce competition in the communications industry, operators can effectively improve the competitiveness of operators by implementing this differentiated service. The invention does not need to change the original network element, and does not need to upgrade the original network device. Only the calling end or the gateway office routes the signaling to the GHLR for the number segment to which the mixed number and the carried number belong, and the cost of the function implementation. very low. It is very convenient to implement the number mixing and number portability of the 3G network in the future, and only needs the GHLR to support the 3GPP protocol routing request response message to return the network number, which will not waste the network resources. It is very convenient to implement the number mixing and number portability of the CDMA network in the future. Only the routing request response message of the GHLR supporting the IS41 protocol can return the network number, which will not waste the network resources. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram showing the composition of an internal module of GHLR. 2 is a schematic diagram of networking of GHLR. Figure 3 is a flow chart of the location update of a PCS user. Figure 4 is a flow chart of a PCS user initiating a routing query, the user is assigned to the PHS-HLR. Figure 5 is a flow chart of a PCS user initiating a route query, the user is not attributed to the PHS-HLR. 6 is a flow chart of a PSTN user initiating a query of a called party number. Figure 7 is a business process in which a PSTN user calls a local PHS user and the calling party is an ISUP+ query. BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below with reference to the accompanying drawings. Figure 1 is a block diagram of the internal modules of GHLR. As shown, the present invention adds one to the local network. GHLR (gate attribution location register) device, including: Signaling processing module: Responsible for processing No. 7 signaling, externally providing the No. 7 interface, and connecting with the local HLRs and other network entities via the No. 7 signaling network. Data storage module: Responsible for storing the number portability table and configuration table. Operation and maintenance module: Responsible for system monitoring and maintenance. Each module of the gateway home location register uses high-speed Ethernet to communicate and work together.

The data stored by GHLR includes: GHLR stores two tables, one for number portability table and one for configuration table. The data stored in the number portability table is as follows:

(1) user identification, LRN, PSID, IMSI, MDN, etc.;

(2) User number, ^ port DN, PSNUM, MSISDN (mobile station ISDN number), etc.;

(3) GT (global code) number belonging to the HLR;

(4) Signaling point code of the home HLR;

(5) The type of network belonging to the HLR;

(6) ^" should be the network type of the network number; the configuration table carries the following data:

(1) User identification prefix; (2) User number prefix; (3) GT address belonging to HLR

(4) Signaling point of the home HLR

(5) The type of network belonging to the HLR; (6) The network number corresponding to the network type. The data storage module may be a physical data storage or an in-memory data storage, and may be placed on the signal processing front-end machine or separately on the background data storage server.

The functions supported by GHLR are as follows: GHLR receives various signaling messages from the switch, such as PHS MAP message, MAP + message, ISUP + message, or future 3GPP MAP message (3GPP protocol), CDMA MAP message (IS41 protocol) If the GHLR determines that the message type is consistent with the user's network type, the message is forwarded to the user's home HLR. If the GHLR determines that the message type is inconsistent with the user's network type, the MGLR directly returns the network number. (1) SCCP (Signaling Connection Control Part) message redirection function

GHLR receives location update request from GIGW (gateway Internet gateway) /VLR (visit location register), GMSC (gate mobile service switching center) /VLR, supplementary service operation request, routing request message, short message routing request, and get message The destination address (user ID or user number) is replaced with the home HLR address of the user according to the number portability table. If the user data in the number portability table does not exist, the configuration table is retrieved, and the user's home HLR address is replaced according to the configuration table, and then The cancellation is forwarded to the home HLR where the real user is located.

(2) called number change query redirection function

After the PSTN number is carried, the gateway cannot determine which network the carrier belongs to and which HLR it belongs to, so it is necessary to initiate a query for the called number to the GHLR. When the GHLR judges that the user is on the SHLR, it forwards the calling and called number to the SHLR. If the user is in another PCS-HLR or a new 3G-HLR added later, GHLR returns the network number.

(3) ISUP + signaling forwarding function

GHLR receives the called number inquiry of ISUP +, and GHLR judges that the user is on SHLR, then forwards the called number to SHLR. The signaling supported by GHLR is as follows:

(1) SCCP interface GHLR is equivalent to one LSTP, supports SCCP No.7 signaling, and forwards SCCP messages. After GHLR connects to the PHS MAP of GIGW/VLR, it determines that the user's home HLR is consistent with the message type, then replaces the destination address and sets the SCCP message. Sent to the home HLR, the SCCP message carries the MAP (Mobile Application Part) information. Since the source address has not changed, the home HLR can directly return the message to the GIGW/VLR.

(2) ISUP (ISDN User Part) Interface The calling PSTN user calls directly to the SHLR for query, and does not need to be processed by GHLR. When a foreign or external network user initiates a call and routes to the gateway GW (gateway office), the GW initiates a called number inquiry, and the query request message is sent to the GHLR for processing, so the GHLR must support the ISUP+ interface.

The GHLR receives the called number inquiry message of the ISUP+ signaling, and the ISUP on the ingress side queries the configuration table or the number portability table according to the called number. If the called party is a PSTN user, the IAM message is forwarded to the SHLR. If the called party is not a PSTN user but a PHS number or a 3G network number, the network number is returned. (3) MAP + interface The calling PSTN user calls directly to the SHLR for query, and does not need to be processed by GHLR. When a foreign or external network user initiates a call and routes to the gateway GW, the GW initiates a called number inquiry, and the query request message is sent to the GHLR for processing, so the GHLR must support the MAP+ interface.

The GHLR receives the called number query message of the MAP+ signaling, determines that the user's home HLR is consistent with the message type, replaces the destination address, and sends the SCCP message to the home HLR, and the SCCP message carries the MAP+ information. The HLR can return the message directly to the GIGW/VLR. If the called party is not a PSTN user, but a PHS number or a 3G network number, GHLR supports the MAP + interface and returns the network number.

(4) The PHS MAP interface GHLR receives the routing request of the PHS MAP of the GIGW/VLR, and determines that the user's home HLR is inconsistent with the message type, and then returns the network number.

(5) 3GPP MAP interface After receiving the routing request of the 3GPP MAP of the GMSC, the GHLR determines that the user's home HLR is consistent with the message type, and returns the network number.

(6) IS41 protocol (CDMA MAP message) interface

After receiving the routing request of the IS41 protocol of the CDMA MSC VLR, the GHLR determines that the user belongs to the HLR and the message type is inconsistent, and returns the network number. How to use GHLR to implement number portability:

(2) The gateway home location register determines whether the type of the request message is consistent with the network type to which the user belongs. If they are consistent, the message is forwarded to the home location register actually registered by the user by querying the number portability table or the configuration table of the data storage module. ; If they are inconsistent, the network number is returned.

(3) The originating end of the request message is connected to the gateway office to which the user belongs according to the network number, and the gateway office of the home network initiates a request to the gateway home location register, and the gateway home location register determines the type of the request message and the network type to which the user belongs. Whether the results are consistent; the result is consistent, and then the message is forwarded to the home location register actually owned by the user by querying the number portability table or the configuration table of the data storage module to complete the service operation. Regardless of the number portability between different types of networks, or the number portability between different home location registers of the same network type, the number portability information is stored in the gateway home location register, and all the request messages from the switch to the home location register are sent to the gateway attribution. The location register determines the actual home location register of the user by the gateway home location register, thereby implementing the number portability service. When a user moves out of the original network to the current network, the calling side and the incoming side do not know. Therefore, when the user is called, the calling side and the incoming side will continue to initiate the called number change query request or the routing request according to the original process, and the request is sent to the GHLR, and the GHLR locates the user's home HLR. If the GHLR determines that the message type is consistent with the network type to which the user belongs, the message is forwarded to the user's home HLR. If the GHLR determines that the message type is inconsistent with the network type to which the user belongs, the network number is directly returned. The calling party or the inbound side connects to the gateway office of the user's home network, and then the gateway office of the home network initiates a routing request again to complete the call connection. Here, in addition to the routing request, it may be other service requests, such as a location update request, a short message routing request, or a supplementary service registration request. The method of using GHLR to achieve number mixing and numbering:

(1) The switch sends the user's request to the gateway home location register; the request is a location update request, a route request, a short message routing request, or a supplementary service registration request;

(2) The gateway home location register locates the home location register to which the user actually belongs according to the number portability information, and completes the mixing and numbering.

The GHLR obtains the HLR number or the HLR signaling point based on the user identity or the subscriber number is fully matched. For example, if there are multiple PCS-HLRs in the local network, no matter which HLR the user data is stored in, when the switch sends the routing request to the GHLR, the GHLR can locate the PCS-HLR to which the user belongs, thereby implementing number mixing and no user identification and The user number corresponds to a certain rule. Figure 2 is a networking diagram of GHLR. Each network switch is connected to the HLR. For example, the PSTN end office LS (fixed network end office) is connected to the SHLR, and the PCS-IGW is connected to the PCS-HLR. After the GHLR is added, each exchange adds a signaling link to the GHLR. , connected to the HLR via GHLR. At the same time, LS also needs to add a trunk connection to GHLR. Figure 3 illustrates a flow chart of the location update process for a PCS user, with PCS-IGW initiating a location update. Step 301 The VLR initiates a location update procedure of the PHS MAP signaling, and sends a location update request to the GHLR. Step 302: The GHLR receives the location update request of the VLR, finds the HLR GT to which the user belongs by querying the number portability table or the configuration table, and replaces the destination GT in the request message with the home HLR GT, and then forwards the location update request to the home HLR. . Step 303: The home HLR inserts the user data into the VLR according to the source GT in the request message. Step 304 The VLR returns an Insert User Data Response. Step gland 305 belongs to the HLR to return a position update response. Figure 4 illustrates a flow diagram of a PCS user initiating a routing request with a request message consistent with the home HLR network type. The PCS-IGW initiates a route query. Step 401: The GIGW initiates a route request process, and sends a route request message to the GHLR. Step 402: The GHLR receives the routing request message of the GIGW, and queries the number carrying table or The configuration table finds the network type of the user's home HLR. If the network category is a PCS network, the destination GT in the request message is replaced with the home HLR GT, and then the routing request is forwarded to the home PCS-HLR. Step 403: The home PCS-HLR sends a request for providing a roaming number to the VLR where the called user is located. Step 404: The VLR returns a roaming number response, carrying the roaming number of the called user. Step 405: The home HLR returns a route response. Figure 5 illustrates a flow chart in which a PCS user initiates a routing request that is inconsistent with the home HLR network type. Step 501: The GIGW initiates a routing request procedure to the GHLR. Step 502: The GHLR receives the routing request of the GIGW, and queries the number carrying table or the configuration table to find the network type of the user's home HLR. If the network category is not a PCS network, the GHLR uses the network number. Instead of a roaming number, it is returned to the route request response message. Step 503: The GIGW connects the call to the gateway office GMSC of the home network according to the network number. Step 3 504 The GMSC sends a routing request message of the 3GPP MAP protocol to the GHLR. Step 505: The GHLR forwards the routing request to the user according to the number portability table and the configuration table.

HLR. Figure 6 illustrates the flow chart of the ISST + called number query initiated by the PSTN user. When the called party is a PSTN user, the LS (Fixed End Office) / TS (Long Distance Office) / GW (Gateway Office) initiates an ISUP+ query, GHLR. The IAM message (initial address message) is received, and the signaling point OPC of the home HLR where the user is located is queried according to the called number, and then the IAM message is forwarded to the SHLR to which the user belongs. Step 601 The gateway office initiates the inquiry of the called number, the calling party is a logical number, and the called party is a logical number. The GHLR analysis receives the I AM message, and according to the called number, queries the signaling point OPC of the home HLR where the user is located, and then the GHLR forwards the IAM message to the SHLR to which the user belongs. Step 602: The SHLR returns a REL message (release message;). If the called party is an external network user or an alien user, the network number is returned, and the called party is a PSTN user, and the called physical number is returned. This process returns the called physical number. Step 603: The end office receives the REL pullback message sent by the SHLR, sends an RLC message to the SHLR (releases the link), and removes the trunk circuit connected to the SHLR. Step 604: The originating office sends an IAM message to the floor end according to the called physical number, where the calling number is a logical number, and the called number is a physical number. Step 605: The landing end office returns the ACM message to the originating office. Figure 7 illustrates the flow chart of the PSTN user calling the local PHS user. The caller is the ISUP+ query. The caller is the SHLR user, so the caller directly queries the SHLR. The called party returns the network number because it is not the user in the SHLR. Step 701: The originating office initiates an inquiry of the calling and called number, the calling party is a physical number, and the called party is a logical number. Because the calling party is a PSTN user, the calling party logical number needs to be queried, so the query is sent directly to the SMLR. Step 702 SHLR returns an ACM message containing the calling logical number. Step 703: The SHLR returns a REL message, and if the called party is a local PSTN user, returns the called physical number. If the called party is an NP user, and the user has NP to other local networks, the network number is returned, and if it is an off-site user, Then return to the original called number. This process returns the PHS over the network number. Step 704: The end office receives the REL pullback message sent by the SHLR, sends an RLC message to the SHLR, and removes the trunk circuit connected to the SHLR. Step 705: The originating office sends an IAM message to the GIGW of the PHS network according to the PHS over-network number returned by the REL, where the calling number is a logical number. Step·3⁄4 706 The GIGW initiates the called routing process and the message is passed to the GHLR. Step 707: The GHLR queries the number portability table or the configuration table. If it is determined that the home HLR network type is consistent with the request message, the home HLR address is obtained, the destination address is replaced, and the SRI message (send address information) is forwarded to the home HLR. Step 708 The home HLR initiates a PRN (Provide Roaming Number) operation. Step 709 returns the roaming number. Step 710: The home HLR returns a route response, directly to the GIGW, without going through the GHLR. Step 711: The GIGW continues to be called according to the roaming number.

Claims

The device for realizing number portability and mixed numbering in a local network, wherein: the device is a gateway home location register applied in a local network, including

a signaling processing module, configured for signaling processing, connected to other network entities via a signaling network and local home location registers;

a data storage module, configured to store a number portability table and a configuration table;

Operation and maintenance module, responsible for system detection and maintenance;

The signaling processing module receives the user request message, finds the home location register of the user by querying the number portability table or the configuration table of the data storage module, and detects and maintains the system by the operation and maintenance module; and the signaling processing module, The data storage module and the operation and maintenance module communicate through high-speed Ethernet. The apparatus for implementing number portability and mixing and numbering in a local network according to claim 1, wherein: the data storage module is a physical data module or a memory data module. The apparatus for implementing number portability and mixing and numbering in a local network according to claim 1 or 2, wherein: the data stored in the number portability table of the data storage module includes: a user identifier, a user number, and a home location register. The global code number, the signaling point code of the home location register, the network type of the home location register, and the network number of the corresponding network type. The device of claim 3, wherein the data stored in the configuration table of the data storage module includes: a user identifier prefix, a user number prefix, and a home location register. The global code address, the network type of the home location register, and the network number of the corresponding network type. The method for implementing number portability by the local network is characterized by:

(2) The gateway home location register determines whether the type of the request message is consistent with the network type to which the user belongs. If they are consistent, the message is forwarded to the home location register that the user actually belongs by querying the number portability table or the configuration table of the data storage module, and End; if not, Then return the network number;

(3) The originating end of the request message is connected to the gateway office to which the user belongs according to the network number, and the gateway office of the home network initiates a request to the gateway home location register to complete the service operation.

The method for implementing number portability in a local network according to claim 5, wherein: the request message of the local network user comprises a mobile application part message of a personal handy phone system, a mobile application part + message, and an ISDN user part + Message, 3GPP Mobile Application Part Message, CDMA Mobile Application Part Message.

7. The method for implementing number portability by a local network according to claim 5, wherein: the request is a location update request, a route request, a short message routing request, or a supplementary service registration request. 8. The local network implements a method for number mixing and numbering, which is characterized by:

(1) The switch sends the user's request message to the gateway home location register;

(2) The gateway home location register locates the home location register to which the user actually belongs according to the number portability information, and completes the mixed number registration.

9. The method for implementing number mixing and numbering in a local network according to claim 8, wherein: the request is a location update request, a routing request, a short message routing request, or a supplementary service registration request.