CN1303844C - Method for processing initial position information request of user equipment - Google Patents

Abstract

The invention discloses a method for processing a location information request initiated by a target user equipment. The method includes: a target UE requests location information from a CN, and the CN obtains a positioning result of the target UE; and the CN sends the target UE to a V-GMLC of the target UE positioning results. According to the present invention, when the target UE requests its own location information from the network including the LCS system, after the CN obtains the positioning result of the target UE from the RAN, it first provides the positioning result of the target UE to the V-GMLC. After the request is processed, the positioning result is provided to the target UE via the CN, so that the V-GMLC can obtain the processing information of the location information request initiated by the target UE, and then enable the V-GMLC to correct the MO-LR request initiated by the target UE. Billing.

Description

A method for processing a location information request initiated by a target user equipment

technical field

The present invention relates to network device positioning technology, in particular to a processing method for a target user equipment to initiate a location information request.

Background technique

The location service (LCS, Location Service) of the mobile communication network is to obtain the location information of the target user equipment (UE) through the positioning technology. The target UE refers to the equipment terminal positioned in the mobile communication network. Location information on local streets. The location information obtained by the mobile communication network can be provided to the target UE for its own positioning; it can also be provided to the communication network itself for sub-area billing or operation and maintenance; it can also be provided to other requests to obtain the location information of the target UE Client applications, such as institutions and individuals, are used for value-added services. Therefore, the location service has a wide range of functions in emergency rescue, vehicle navigation and intelligent transportation systems, work scheduling and team management, mobile yellow page query, and enhanced network performance. In the third generation partnership project (3GPP), the LCS specification and the functional mode, structure, state description and message flow of the entire location service are described.

Fig. 1 is a schematic diagram of a logical structure for realizing a location service. As shown in Fig. 1, a requester 101 requests the location information of a target UE 103 through a network 102 including an LCS system, and the network 102 including an LCS system performs legality authentication on the requester 101 , verify whether the target UE 103 allows its location information to the requesting end 101, if the requesting end 101 passes the legality authentication of the network 102 including the LCS system, then the network 102 including the LCS system accepts the requesting end 101 to the target UE 103. The location information request locates the target UE 103, and provides the location result of the target UE 103 to the requesting end 101; otherwise, the network 102 including the LCS system rejects the location information request initiated by the requesting end 101 to the target UE 103.

Functional logical entities capable of implementing location services in the LCS system include Gateway Mobile Location Center (GMLC), user data storage server (HLR/HSS), core network (CN) and radio access network (RAN). The GMLC may further include a requesting gateway mobile location center (R-GMLC, Requesting GMLC), a home gateway mobile location center (H-GMLC, Home GMLC) and a visited gateway mobile location center (V-GMLC, Visited GMLC). R-GMLC refers to the GMLC that receives the location information request from the requester to the target UE, H-GMLC refers to the GMLC to which the target UE belongs, and V-GMLC refers to the GMLC currently serving the target UE, that is, the location where the target UE is currently located. GMLC. R-GMLC, H-GMLC and V-GMLC can be the same physical entity, or different physical entities.

At present, the 3GPP specification defines the processing flow of Mobile Original Location Request (MO-LR, MobileOriginal Location Request). The MO-LR request means that the target UE requests its own location information from the LCS system. After positioning, the positioning result is returned to the target UE; further, the LCS system can provide the positioning result of the target UE to an external requesting end according to the requirements of the target UE. The requester here refers to a client such as an LCS client and an application client that can process the location information of the target UE, not a requester that requests the location information of the target UE in the usual sense.

Fig. 2 is the processing flowchart of MO-LR request in the prior art, as shown in Fig. 2, the processing procedure of MO-LR request comprises the following steps:

Step 201: The target UE sends a service request to the CN via the RAN, requesting to establish a wireless signaling connection with the network including the LCS system. At this time, the network including the LCS system may initiate an authentication and encryption process for the target UE. If the target UE passes the For the authentication of the LCS system network, continue to execute step 202; otherwise, reject the service request for the wireless signaling connection initiated by the target UE, and end the current processing flow of the MO-LR request.

Steps 202 to 204: The target UE sends a location service MO-LR request to the CN via the RAN, requesting the CN to locate the target UE. The location service MO-LR request may further carry information of the external requesting end, requiring the LCS system to obtain The location information of the target UE is provided to the corresponding requesting end. After the CN receives the location service MO-LR request, it can judge whether the target UE has signed the MO-LR service initiated by it according to the stored information. If the target UE has not signed the MO-LR service, the CN will return the error reason to the target UE value of the location service MO-LR request response, rejecting the MO-LR request initiated by the target UE. If the target UE subscribes to the MO-LR service, the CN sends to the RAN a request for locating the target UE carrying the identity of the target UE; the location service MO-LR request can further carry the GMLC address specified by the target UE, requiring the CN to specify The GMLC provides the positioning result of the target UE to the requesting end. If the target UE does not specify a GMLC, the CN can request a GMLC for the current MO-LR according to its stored GMLC address information, and provide the positioning result of the target UE to the requesting end through the GMLC. After receiving the request for locating the target UE, the RAN locates the target UE.

Step 205: After the RAN finishes locating the target UE, it returns the target UE location report to the CN. If the RAN successfully locates the target UE, that is, the location information of the target UE can be obtained, then the target UE location report contains the target UE location report. Location information, if the target UE requires the LCS system to provide the obtained target UE location information to the corresponding requesting end, after the CN receives the target UE location report, continue to perform steps 206 to 210; otherwise, the CN returns directly to the target UE through the RAN Location service MO-LR response carrying location information. If the RAN fails to locate the target UE, the location report of the target UE carries an error cause value, and the CN returns a location service MO-LR response carrying an error cause value to the target UE through the RAN.

Steps 206 to 207: the CN sends a target UE location report to the designated GMLC, and the target UE location report carries the identification of the requesting end and the location information of the target UE. After receiving the target UE location report, the GMLC sends the target UE location information to the corresponding requesting end according to the requesting end identifier.

Steps 208 to 209: After receiving the location information of the target UE, the requester judges whether the location information of the target UE can be processed, and if so, returns a response to the GMLC with a location information of the target UE carrying a successful identifier; The GMLC returns a target UE location information response carrying an error cause value. After receiving the target UE location information response, the GMLC returns the target UE location report response carrying the corresponding content to the CN according to the content carried in the target UE location information response, that is, if the GMLC receives the target UE location information response carrying a successful identifier , then return to the CN a target UE location report response carrying a success identifier; if the GMLC receives a target UE location information response carrying an error cause value, then return a target UE location report response carrying an error cause value to the CN.

Step 210: After the CN receives the target UE location report response, according to the content carried in the target UE location report response, it returns the location service MO-LR response carrying the corresponding content to the target UE. The target UE location report response, then return the location service MO-LR response carrying the location information to the target UE, and notify the target UE that the location information has been provided to the corresponding requesting end; if the CN receives the target UE location carrying the error cause value Report response, then return the location service MO-LR response carrying the location information to the target UE, and return the error cause value to the target UE, informing the target UE that the location information has been provided to the corresponding requesting end, but the corresponding requesting end cannot verify its location information is processed correctly. At this time, the CN may generate charging information for the MO-LR request initiated by the target UE this time.

It can be seen from the MO-LR request processing process defined by the above 3GPP specification that when the target UE requests its own location information from the network including the LCS system, the charging information is generated in the current CN of the target UE. However, in actual network operation, since the CN is a basic entity for bearer processing in the network and has a large number, it is not suitable to place a specific service charging point on the CN for execution, which will cause the processing of the CN It is too related to the business. When the business changes, such as the business is upgraded, the corresponding CN needs to be upgraded, and the number of CN nodes in the network is large, so that a certain business change will have an impact on the entire network. Conducive to business development and promotion.

Contents of the invention

In view of this, the purpose of the present invention is to provide a method for processing a location information request initiated by a target user equipment, so that the V-GMLC of the target UE can obtain the processing information of the location information request initiated by the user equipment, and then realize the processing of the location information request initiated by the user equipment. Correct billing of MO-LR requests.

In order to achieve the above object, the present invention provides a method for processing a location information request initiated by a target user equipment, the method comprising the following steps:

A. The target UE requests location information from the CN, and the CN obtains the positioning result of the target UE;

B. The CN sends the target UE positioning result to the V-GMLC of the target UE.

The step B includes: the CN sends the target UE positioning result to the V-GMLC according to the pre-stored V-GMLC address information.

After the step B, it further includes: the V-GMLC generates charging information of the target UE.

After the step B, it further includes: the V-GMLC returns a target UE positioning result response to the CN.

The step A further includes: the target UE provides the requester identification to the CN;

After the step A, further include:

A1. The CN provides the target UE positioning result to the requesting end corresponding to the requesting end identifier.

Said step A1 further comprises the following steps:

A11, the CN sends the target UE positioning result carrying the requesting end identifier to the V-GMLC;

A12. The V-GMLC receives the target UE positioning result, and sends the target UE positioning result to the requesting end according to the requesting end identifier.

After the V-GMLC in step A12 receives the positioning result of the target UE, it further includes the following steps:

A121, V-GMLC obtains the address information of the requesting end according to the requesting end identification, and judges whether it can directly access the requesting end, if yes, directly sends the target UE positioning result to the requesting end, otherwise, executes step A122;

A122. The V-GMLC searches for a GMLC that can directly access the requesting end according to the address information of the requesting end, and sends the target UE positioning result to the requesting end through the GMLC.

The step A further includes: the target UE provides CN with GMLC address information capable of accessing the requesting end.

Said step A1 further comprises the following steps:

A111, the CN sends the target UE positioning result carrying the requesting end identifier and GMLC address information to the V-GMLC;

A112. The V-GMLC receives the target UE positioning result, and sends the target UE positioning result carrying the requesting end identifier to the GMLC according to the GMLC address information;

A113. The GMLC receives the target UE positioning result, and sends the target UE positioning result to the requesting end according to the requesting end identifier.

After the V-GMLC directly sends the target UE positioning result to the requesting end in the step A121, the following steps are further included: the requesting end returns a target UE positioning result response to the V-GMLC, and the V-GMLC returns a target UE positioning result response to the CN.

After the step A113, the following steps are further included: the requester returns the target UE positioning result response to the GMLC, the GMLC returns the target UE positioning result response to the V-GMLC, and the V-GMLC returns the target UE positioning result response to the CN.

The CN is MSC, or MSC Server, or SGSN.

According to the present invention, the target UE requests its own location information from the network including the LCS system. After the CN obtains the positioning result of the target UE from the RAN, it provides the positioning result of the target UE to the V-GMLC. When the V-GMLC processes the positioning request After that, the positioning result is provided to the target UE via the CN, so that the V-GMLC can obtain the processing information of the location information request initiated by the target UE. Since the V-GMLC belongs to the service gateway of the location service, it can perform correct positioning for different location services. Approval, and then realize the correct charging of the MO-LR request initiated by the user equipment, which reduces the service correlation of the CN node, and is beneficial to the development and promotion of the location service.

Description of drawings

FIG. 1 is a schematic diagram of a logical structure for implementing a location service;

Fig. 2 is the processing flowchart of MO-LR request in the prior art;

Fig. 3 is the processing flowchart of MO-LR request among the present invention;

Fig. 4 is a schematic diagram of an embodiment of the present invention;

Fig. 5 is a schematic diagram of another embodiment of the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

In the present invention, the target UE requests its own location information from the network including the LCS system. After the CN obtains the positioning result of the target UE from the RAN, it first provides the positioning result of the target UE to the V-GMLC. After processing, the positioning result is provided to the target UE via the CN, so that the V-GMLC can obtain processing information of the location information request initiated by the target UE.

Fig. 3 is the processing flowchart of MO-LR request among the present invention, as shown in Fig. 3, the processing procedure of MO-LR request comprises the following steps:

Step 301: The target UE sends a service request to the CN via the RAN, requesting to establish a wireless signaling connection with the network including the LCS system. At this time, the network including the LCS system may initiate an authentication and encryption process for the target UE. If the target UE passes the For the authentication of the LCS system network, continue to execute step 302; otherwise, reject the service request for the wireless signaling connection initiated by the target UE, and end the current processing flow of the MO-LR request.

Steps 302 to 304: the target UE sends a location service MO-LR request to the CN via the RAN, requesting the CN to locate the target UE. After the CN receives the location service MO-LR request, it can judge whether the target UE has signed the MO-LR service initiated by it according to the stored information. If the target UE has not signed the MO-LR service, the CN will return the error reason to the target UE value of the location service MO-LR request response, rejecting the MO-LR request initiated by the target UE. If the target UE subscribes to the MO-LR service, the CN sends a request to locate the target UE to the RAN. After receiving the request for locating the target UE, the RAN locates the target UE.

Steps 305 to 306: After the RAN finishes locating the target UE, it returns a target UE location report to the CN. If the RAN successfully locates the target UE, that is, it can obtain the location information of the target UE, then the target UE location report carries Location information of the target UE; if the RAN fails to locate the target UE, the target UE location report carries an error cause value. After receiving the location report of the target UE, the CN sends MO-LR request positioning information to the V-GMLC, notifying the V-GMLC that the target UE initiated the MO-LR request.

In order to enable V-GMLC to carry out accurate charging according to the processing status of MO-LR request, after CN receives the target UE location report, it can send MO with corresponding content to V-GMLC according to the content carried in the target UE location report - LR requests location information, and notifies V-GMLC of the processing status of the MO-LR request initiated by the target UE, that is, if the CN receives a target UE location report carrying the location information of the target UE, it sends a message to the V-GMLC carrying a successful identifier or The MO-LR request positioning information of the target UE location information; if the CN receives the target UE location report carrying the error cause value, it sends the MO-LR request positioning information carrying the failure identifier to the V-GMLC, and further, the CN sends the target UE location report to the V-GMLC. The MO-LR request positioning information sent by the V-GMLC may also carry the type of the MO-LR request initiated by the target UE. In addition, when the CN receives the target UE location report carrying the error cause value, it can also directly execute step 308, return the location service MO-LR response carrying the error cause value to the target UE via the RAN, and end the current MO-LR request processing flow.

Since the corresponding relationship between CN and GMLC is configured during network planning, the address information of the GMLC connected to it has been pre-stored in the CN, and the GMLC connected to the CN where the target UE is currently located is the V-GMLC of the target UE. When the CN sends the MO-LR request location information to the V-GMLC, it can send the MO-LR request location information to the GMLC, that is, the V-GMLC of the target UE, according to the GMLC address information stored by the CN.

Step 307～Step 308: After V-GMLC receives the MO-LR request location information, V-GMLC generates corresponding bill records according to the received MO-LR request location information, and then returns MO-LR request location information to CN information response. At this time, after the CN receives the MO-LR request positioning information response, according to the content carried in the target UE location report returned by the RAN, the location service MO-LR response carrying the corresponding content is returned to the target UE via the RAN, that is, if the CN receives The target UE location report carrying the target UE location information returns to the target UE the location service MO-LR response carrying the target UE location information; if the CN receives the target UE location report carrying the error cause value, it returns to the target UE Return the location service MO-LR response carrying the error cause value. In addition, the MO-LR request positioning information response returned by the V-GMLC to the CN may further carry the processing status of the MO-LR request initiated by the UE. and return the location service MO-LR response to the target UE. The location service MO-LR request initiated by the target UE can further carry the external requester identifier, requiring the LCS system to pass the acquired location information of the target UE to the external requester. When the RAN successfully locates the target UE, the V-GMLC obtains After obtaining the location information of the target UE, the follow-up process is: V-GMLC obtains the address information of the requesting end according to the requesting end identification provided by the CN, and judges whether it can directly provide the location information of the target UE to the requesting end, and if so, directly sends the requesting end Send the location information of the target UE; otherwise, according to the address information of the requesting end, search for a GMLC that can directly access the requesting end, and then send the location information of the target UE to the requesting end through the GMLC.

In addition, the location service MO-LR request initiated by the target UE carries the external requester identifier and the specified GMLC address information that can access the requester, requiring the LCS system to provide the acquired target UE location information to the external requester through the specified requester. On the requesting side, when the RAN successfully locates the target UE, after the V-GMLC obtains the location information of the target UE, the subsequent process is: the V-GMLC sends a MO-LR location notification message to the GMLC according to the GMLC address information provided by the CN; Then the GMLC sends the location information of the target UE to the requesting end.

FIG. 4 is a schematic diagram of an embodiment of the present invention. As shown in FIG. 4, in this embodiment, the processing of the MO-LR request in the circuit domain that does not carry the external requester identifier includes the following steps:

Steps 401 to 403: The target UE sends a call management service request (CM ServiceRequest) to the RAN, requesting to establish a wireless signaling connection with the network. After receiving the CM Service Request, the RAN forwards the CM Service Request to the Mobile Switching Center (MSC)/Mobile Switching Center Server (MSC Server). After MSC/MSC Server receives the CM Service Request, it interacts with the target UE to complete the authentication and encryption of the target UE. If the target UE passes the authentication, the MSC/MSC Server notifies the target UE that it has accepted the call management service request initiated by it. Continue to execute step 404; otherwise, the MSC/MSC Server notifies the target UE to reject the call management service request initiated by it.

Steps 404 to 406: After the target UE is authenticated by the MSC/MSC Server, it sends a circuit domain location service MO-LR request (LCS CS_MO_LRInvoke) to the MSC/MSC Server, requesting the network including the LCS system to locate it. After receiving the LCS CS_MO_LR Invoke, MSC/MSC Server can judge whether the target UE has signed the MO-LR service initiated by it according to the stored information. If the target UE has not signed the MO-LR service, the MSC/MSC Server will return the carrying The circuit domain location service MO-LR response (LCSCS_MO_LR Result) with an error cause value rejects the MO-LR request initiated by the target UE. Otherwise, the MSC/MSCServer sends a Location Request to the RAN; after receiving the LocationRequest, the RAN locates the target UE.

Step 407: After the RAN finishes positioning the target UE, it returns to the MSC/MSC Server a target UE location report message (Location Report) carrying the target UE positioning result. After MSC/MSCServer receives the Location Report, it sends the target UE location report (MAP SubscriberLocation Report) carrying the target UE positioning result to the V-GMLC according to the V-GMLC address information stored by itself.

Steps 408 to 409: MSC/MSC Server sends to V-GMLC a MAP Subscriber Location Report carrying the positioning result of the target UE. Further, the MAP Subscriber Location Report may also carry the type of MO-LR request initiated by the target UE. After the V-GMLC generates the corresponding bill record according to the received MO-LR request location information, it returns the target UE location report response (MAP Subscriber LocationReport Ack) to the MSC/MSC Server.

Step 410: After receiving the MAP Subscriber Location Report Ack, the MSC/MSC Server returns a location service circuit domain MO-LR response (LCSCS-MO-LR Result) carrying location information to the target UE.

Step 411: Release the occupied LCS system resources, and end the current circuit domain MO-LR request processing flow.

FIG. 5 is a schematic diagram of another embodiment of the present invention. As shown in FIG. 5, in this embodiment, the processing of the packet domain MO-LR request carrying the external requester identification includes the following steps:

Steps 501 to 502: The target UE sends a service request message (CM Service Request) to the serving general packet radio service support node (SGSN), requesting to establish a wireless signaling connection with the network. After receiving the CM Service Request, the SGSN establishes a signaling connection in the packet domain with the target UE.

Steps 502 to 504: The target UE sends a packet domain location service MO-LR request message (LCS PS_MO_LR Invoke) to the SGSN, requesting the network including the LCS system to locate it. The LCS PS_MO_LR Invoke carries an external requester identifier and requests the SGSN Provide the location information of the target UE to a corresponding external requester. After receiving the LCS PS_MO_LR Invoke, the SGSN sends a Location Request to the RAN; after the RAN receives the Location Request, it locates the target UE.

Steps 505 to 506: After the RAN finishes locating the target UE, it returns to the SGSN a Location Report carrying the locating result of the target UE. If the RAN successfully locates the target UE, that is, the location information of the target UE can be obtained, the Location Report carries the location information of the target UE; if the RAN fails to locate the target UE, steps 507 to 510 are omitted. After receiving the Location Report, the SGSN sends the target UE location report (Subscriber Location Report) to the V-GMLC according to the V-GMLC address information stored by itself, carrying the target UE identification, target UE positioning result and external requester identification. It may further carry the type of the MO-LR request initiated by the target UE. After the V-GMLC receives the Subscriber LocationReport, the V-GMLC obtains the address information of the requester according to the identifier of the requester, and judges whether it can directly provide the location information of the target UE to the requester. Location Information of the information, step 507 can be omitted; otherwise, search for a GMLC that can directly access the requesting end, and then perform step 507.

Step 507-Step 508: V-GMLC sends MO-LR Location Inform carrying target UE location information and requester ID to the searched GMLC. After receiving the MO-LRLocation Inform, the GMLC sends the Location Information carrying the location information of the target UE to the requester according to the identifier of the requester.

Steps 509 to 510: After receiving the Location Information, the requester judges whether the location information of the target UE can be processed, and if so, returns a Location Information Ack carrying a successful identifier to the GMLC, otherwise returns a failure identifier to the GMLC LocationInformation Ack can further carry the corresponding error cause value. After receiving the LocationInformation Ack, the GMLC returns the MO-LR Location Inform Ack to the V-GMLC.

Step 511 to Step 512: After V-GMLC receives MO-LR Location Infom Ack, according to the content carried by MO-LR Location Inform Ack, that is, whether the requester can successfully process the location information of the target UE and the location information of the target UE, Generate the corresponding bill record, and then return the target UE location report response (Subscriber Location Report Ack) to the SGSN. After receiving the Subscriber Location Report Ack, the SGSN sends to the target UE a packet domain location service MO-LR response (LCS PS_MO_LRResult) carrying the result of processing the location information of the target UE by the requesting end.

In a word, the above descriptions are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention.

Claims (13)

1. A method for processing a location information request initiated by a target user equipment, characterized in that the method comprises the following steps: A. The target user equipment UE requests location information from the core network CN, and the CN obtains the positioning result of the target UE; B. The CN sends the target UE positioning result to the V-GMLC of the target UE. 2. The method of claim 1, wherein: The step B includes: the CN sends the target UE positioning result to the V-GMLC according to the pre-stored V-GMLC address information. 3. The method according to claim 1, further comprising: after step B, V-GMLC generates charging information of the target UE. 4. The method according to claim 1, further comprising: after step B, the V-GMLC returns a target UE positioning result response to the CN. 5. A method according to claim 1, 2, 3 or 4, characterized in that, The step A further includes: the target UE provides the requester identification to the CN; After the step A, further include: A1. The CN provides the target UE positioning result to the requesting end corresponding to the requesting end identifier. 6. The method according to claim 5, characterized in that said step A1 further comprises the following steps: A11, the CN sends the target UE positioning result carrying the requesting end identifier to the V-GMLC; A12. The V-GMLC receives the target UE positioning result, and sends the target UE positioning result to the requesting end according to the requesting end identifier. 7. The method according to claim 6, characterized in that, after the V-GMLC in step A12 receives the positioning result of the target UE, it further comprises the following steps: A121, V-GMLC obtains the address information of the requesting end according to the requesting end identification, and judges whether it can directly access the requesting end, if yes, directly sends the target UE positioning result to the requesting end, otherwise, executes step A122; A122. The V-GMLC searches for a gateway mobile location center GMLC that can directly access the requesting end according to the address information of the requesting end, and sends the positioning result of the target UE to the requesting end through the GMLC. 8. The method of claim 5, wherein: The step A further includes: the target UE provides CN with GMLC address information capable of accessing the requesting end. 9. The method according to claim 8, characterized in that said step A1 further comprises the following steps: A111, the CN sends the target UE positioning result carrying the requesting end identifier and GMLC address information to the V-GMLC; A112. The V-GMLC receives the target UE positioning result, and sends the target UE positioning result carrying the requesting end identifier to the GMLC according to the GMLC address information; A113. The GMLC receives the target UE positioning result, and sends the target UE positioning result to the requesting end according to the requesting end identifier. 10. The method according to claim 7, characterized in that, after the V-GMLC directly sends the target UE positioning result to the requesting end in the step A121, the following step is further included: the requesting end returns the target UE positioning result to the V-GMLC In response, the V-GMLC returns a target UE positioning result response to the CN. 11. The method according to claim 7, further comprising the following steps after step A122: the requester returns a target UE positioning result response to the GMLC, and the GMLC returns a target UE positioning result response to the V-GMLC, and V- The GMLC returns a target UE positioning result response to the CN. 12. The method according to claim 9, further comprising the following steps after step A113: the requester returns a target UE positioning result response to the GMLC, and the GMLC returns a target UE positioning result response to the V-GMLC, and V- The GMLC returns a target UE positioning result response to the CN. 13. The method according to claim 1, 2, 3 or 4, wherein the CN is a Mobile Switching Center MSC, or a Mobile Switching Center Server MSC Server, or a General Packet Radio Service Support Node SGSN.

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