CN1798442B

CN1798442B - Method for displaying information of calling position

Info

Publication number: CN1798442B
Application number: CN 200410104106
Authority: CN
Inventors: 胡立新; 仵佩
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2004-12-29
Filing date: 2004-12-29
Publication date: 2013-10-09
Anticipated expiration: 2024-12-29
Also published as: CN1798442A

Abstract

The method discloses a method for displaying information of calling position, and includes following steps: the calling communication terminal initiates a call to the called communication terminal; after the MSC at calling party receives the request, the network side trigger the calling location display service to get the current location information about the calling communication terminal according to the cellular identify of the called communication terminal, and then sends the current location information about calling communication terminal to the called communication terminal to make display. The invention can be used in subscription calling location display service in calling communication terminal and in subscription calling location display service in called communication terminal.

Description

A kind of method of display of calling positional information

Technical field

The present invention relates to communication and location technology, refer to a kind of method of display of calling positional information especially.

Background technology

Location-based business (LBS, Location Base Service) is the class new business in the mobile communication, has a wide range of applications, and this class business comprises location and professional two basic conceptions.Wherein, the location refers to obtain the positional information of communication terminal, as information such as longitude, latitude, height, or residential quarter, communication terminal place, can not directly provide these positional informations to the user usually; The positional information that business refers to utilize the location to obtain provides corresponding service to the user, and for example, the current location of display communication terminal on electronic chart provides information such as near its position hotel's title, telephone number to the user, etc.After mobile communications network obtained the positional information of communication terminal, initiatively the positional information with communication terminal offered operation system; Or operation system is to the current location of mobile communications network inquiring communication terminal.Operation system can provide the difference service relevant with the position after obtaining the positional information of communication terminal, to realize value-added service.

Mobile communications network can obtain the position of communication terminal by multiple location technology, and for example, the current location of obtaining communication terminal namely by the sign of the current place of communication terminal Serving cell, is come in cell ID (Cell-ID) location.Mobile communications network and communication terminal also can utilize the radio signal of satellite in the global positioning system (GPS, Global Position System) to position.At present, the location technology of using in mobile communications network mainly contains: based on cell-of-origin (COO) technology of mobile communications network, based on the trilateration technique of the time of advent (TOA) or the time of advent poor (TDOA) principle, and based on assistant GPS (A-GPS) technology of interspace radio navigation system.

The safety rescue refers to by determining the current position of communication terminal, for the user provides pick-up operation under the state of emergency, cast anchor in unmanned area in the countryside, the party does not know its position getting lost, take place emergency to need medical first aid fremdly as automobile, etc.Safe rescue department can position the communication terminal that the user uses by mobile communications network, determines behind its current position the user to be imposed assistance.It is exactly the E911 of the U.S. that the typical case of emergency relief class uses.In 1996, FCC (FCC) requires mobile operator to provide emergency assistance services for the user, be the current location that mobile communications network provides the portable terminal that makes a call, in order to the user is in time rescued, this positioning service is called as E911.

US Patent No. 6,816,720, provide in the location information of mobile terminal (Call-basedProvisioning of Mobile Equipment Location Information) based on calling, mobile communications network detects number that communication terminal calls out when being predefined special number, voice exchange in the mobile communications network (voice switch) provides the current location information of communication terminal to service control server (SCS, Service Control Server).

According to above description as seen, the positional information of caller communication terminal can only be offered special-purpose server at present, and can not be directly the positional information of caller communication terminal be offered called communication terminal; And, the business that positional information is provided is caller communication terminal business of triggering, have only by calling out predefined special number, providing of ability trigger position information, like this, just need in mobile communications network, preestablish special called number, the positional information of caller communication terminal is provided to different called communication terminals if desired, a large amount of special called numbers just need be set, it is very complicated to make data arrange, in processing procedure, called number need be compared with a large amount of special called number of setting, it is very slow to make mobile communications network handle the speed of calling out, therefore, from realizing that angle is unpractical, also just can't make domestic consumer also can apply for related service.

Summary of the invention

In view of this, the object of the present invention is to provide a kind of method of display of calling positional information, make that the current location information of display of calling communication terminal is achieved on called communication terminal.

In order to achieve the above object, the invention provides a kind of method of display of calling positional information, the caller communication terminal makes a call to called communication terminal, and after originating MS C received call request, the method includes the steps of:

A, network-triggered caller location display business obtain the current location information of caller communication terminal;

B, network offer called communication terminal displays with the current location information of caller communication terminal.

Further comprise among described steps A or the step B:

The relevant information of a, network based current calling judges whether to provide to called communication terminal the current location information of caller communication terminal, if then finish the caller location display business; Otherwise, finish current flow process.

Described step a is: whether the user that network is judged the caller communication terminal signatory caller location display business, if then finish the caller location display business; Otherwise, finish current flow process.

Described step a is: whether the user that network is judged called communication terminal signatory caller location display business, if then finish the caller location display business; Otherwise, finish current flow process.

Described step a is: the user that network is judged the caller communication terminal whether signatory caller location forbids display business, if then finish current flow process; Otherwise, finish the caller location display business.

Described step a is: network based caller communication terminal number user calling judges whether to provide to called communication terminal the current location information of caller communication terminal, if then finish the caller location display business; Otherwise, finish current flow process.

This method further comprises: the user whether information of signatory caller location display business is stored among HLR or the SCP, further bag before judging described in the step a: network is obtained the whether information of signatory caller location display business of user to HLR or SCP.

Described judgement is by the SCP in the network, or HLR, or MSC one of them finish.

The current location information that obtains the caller communication terminal described in the steps A is by the SCP in the network, obtain HLR, or MSC one of them finish.

The caller location of network-triggered described in steps A display business is by the SCP in the network, or caller HLR, caller MSC, or called HLR, or called MS C finishes.

Positional information described in the steps A is: the positional information of Network Recognition form; Further comprise before the described step B: the Network Recognition format location information of network based storage and the corresponding relation between the text formatting positional information, determine the text formatting of the current position of caller communication terminal information; Positional information described in the step B is: the positional information of text formatting.

Described steps A is: the caller location display business is toggled to SCP, and SCP obtains caller communication terminal current location information; Described step B is: SCP offers called communication terminal displays by caller crosspoint and called crosspoint or called crosspoint with the current location information of caller communication terminal.

Obtain described in the steps A before the caller communication terminal current location information, further comprise: SCP judges whether signatory caller location display business of caller communication terminal user, if then obtain caller communication terminal current location information.

Described SCP obtains caller communication terminal current location information: SCP sends Location Request to positioning unit, and positioning unit returns caller communication terminal current location information to SCP.

The user of the caller communication terminal caller location display business of contracting, before described caller communication terminal makes a call to called communication terminal, further comprise: when the caller communication terminal carried out the position registration, HLR provided the SCP address of control caller location display business to crosspoint.

The user of the caller communication terminal caller location display business of contracting, SCP described in the steps A obtains before the caller communication terminal current location information, further comprise: SCP is according to caller communication terminal number user calling, judge the current caller location display business of whether contracting of caller communication terminal user, if then obtain caller communication terminal current location information.

Described caller communication terminal number user calling comprises access code and the called number for the current caller location display business of whether contracting of sign.

Positional information described in the steps A is: the positional information of Network Recognition form; Further comprise before the described step B: SCP determines the text formatting of the current position of caller communication terminal information according to the Network Recognition format location information of storage and the corresponding relation between the text formatting positional information; Positional information described in the step B is: the positional information of text formatting.

The positional information of described Network Recognition form is: by up and down coordinate and area identification left and right sides coordinates logo, the rectangular area.

Described steps A is: the crosspoint that starts obtains the current location information of caller communication terminal; Described step B is: network side offers called communication terminal displays with the current location information of caller communication terminal.

The user of the caller communication terminal caller location display business of contracting, before described caller communication terminal makes a call to called communication terminal, further comprise: when the caller communication terminal carries out the position registration, HLR provides caller communication terminal user the sign of signatory caller location display business to crosspoint, and crosspoint is stored this sign; Described steps A is: the crosspoint that starts triggers the caller location display business according to the sign of storing, and obtains the current location information of caller communication terminal.

The caller communication terminal current location information that the crosspoint that starts described in the steps A obtains is cell ID; Further comprise before the described step B: the crosspoint that starts is converted to the cell ID that obtains the positional information of text formatting; The current location information of the communication terminal of caller described in the step B is the text formatting positional information.

The user of the called communication terminal caller location display business of contracting, described steps A is: the crosspoint that starts obtains the current location information of caller communication terminal, and be sent to called HLR, called HLR judges according to the user signing contract information of storage whether the caller location display business that caller communication terminal user contracts is in state of activation, if, execution in step B then; Described step B is: called HLR offers called communication terminal displays by called crosspoint with the current location information of caller communication terminal.

Described steps A is: HLR is toggled to the crosspoint that starts with the caller location display business, and the crosspoint that starts obtains the current location information of caller communication terminal; Described step B is: the crosspoint that starts offers called communication terminal displays by called crosspoint with the current location information of caller communication terminal.

Positional information described in the steps A is: the positional information of Network Recognition form; Further comprise before the described step B: the crosspoint that starts is determined the text formatting of the current position of caller communication terminal information according to the Network Recognition format location information of storage and the corresponding relation between the text formatting positional information; Positional information described in the step B is: the positional information of text formatting.

Positional information described in the steps A is: the positional information of Network Recognition form; Described step B comprises: the crosspoint that starts provides the caller communication terminal current location information of Network Recognition form to called crosspoint, called crosspoint is according to the Network Recognition format location information of storage and the corresponding relation between the text formatting positional information, determine the text formatting of the current position of caller communication terminal information, offer called communication terminal displays then.

Positional information described in the steps A is: the positional information of Network Recognition form; Described step B comprises: the crosspoint that starts provides the caller communication terminal current location information of Network Recognition form to HLR, HLR is according to the Network Recognition format location information of storage and the corresponding relation between the text formatting positional information, determine the text formatting of the current position of caller communication terminal information, offer called communication terminal displays by called crosspoint then.

Described steps A is: called crosspoint triggers the caller location display business, obtains the current location information of caller communication terminal; Described step B is: called crosspoint offers called communication terminal displays with the current location information of caller communication terminal.

Further comprise before the described steps A: called communication terminal carries out the position registration, and HLR notifies the called communication terminal user of called crosspoint the caller location display business of contracting.

Further comprise before the described steps A: HLR is toggled to called crosspoint with the caller location display business.

Positional information described in the steps A is: the positional information of Network Recognition form; Further comprise before the described step B: called crosspoint is determined the text formatting of the current position of caller communication terminal information according to the Network Recognition format location information of storage and the corresponding relation between the text formatting positional information; Positional information described in the step B is: the positional information of text formatting.

Positional information described in the steps A is: the positional information of Network Recognition form; Further comprise before the described step B: called crosspoint provides the caller communication terminal current location information of Network Recognition form to HLR, HLR is according to the Network Recognition format location information of storage and the corresponding relation between the text formatting positional information, determine the text formatting of the current position of caller communication terminal information, offer called communication terminal then; Positional information described in the step B is: the positional information of text formatting.

The current location information that obtains the caller communication terminal described in the steps A is: the current location information that obtains the caller communication terminal according to the positional information of self storing.

The current location information that obtains the caller communication terminal described in the steps A is: send Location Request to positioning unit, positioning unit returns the current location information of caller communication terminal.

This method further comprises: called communication terminal displays caller communication terminal number.

According to the proposed method, the caller communication terminal makes a call to called communication terminal, after originating MS C receives call request, network-triggered caller location display business, obtain the current location information of caller communication terminal, the current location information with the caller communication terminal offers called communication terminal displays then.The signatory caller location display business of user that both can the caller communication terminal among the present invention, the signatory caller location display business of user that also can called communication terminal.The scheme that the present invention proposes both can realize based on intelligent network, also can realize based on existing mobile communication network, selected for the realization of caller location display business provides flexibly.

Description of drawings

Fig. 1 shows among the present invention the networking schematic diagram based on intelligent network;

Fig. 2 shows among the present invention based on the signatory caller location display business implementation procedure schematic diagram of the calling subscriber of intelligent network;

Fig. 3 shows among the present invention based on the signatory caller location display business implementation procedure schematic diagram of the called subscriber of intelligent network;

Fig. 4 shows among the present invention based on the signatory caller location display business implementation procedure schematic diagram of the calling subscriber of mobile communications network;

Fig. 5 shows among the present invention based on signatory caller location display business embodiment one schematic diagram of the called subscriber of mobile communications network;

Fig. 6 shows among the present invention based on signatory caller location display business embodiment two schematic diagrames of the called subscriber of mobile communications network;

Fig. 7 shows among the present invention based on signatory caller location display business embodiment three schematic diagrames of the called subscriber of mobile communications network;

Fig. 8 shows among the present invention based on signatory caller location display business embodiment four schematic diagrames of the called subscriber of mobile communications network;

Fig. 9 shows among the present invention based on signatory caller location display business embodiment five schematic diagrames of the called subscriber of mobile communications network;

Figure 10 shows division schematic diagram in zone among the present invention.

Embodiment

For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.

Among the present invention, behind the signatory caller location display business of the user of communication terminal, after the caller communication terminal makes a call to called communication terminal, network-triggered caller location display business, obtain the current location information of caller communication terminal, the current location information with the caller communication terminal offers on the called communication terminal displays then.The signatory caller location display business of the user of communication terminal both can be the signatory caller location display business of user of caller communication terminal, the signatory caller location display business of user that also can called communication terminal.The scheme that the present invention proposes both can realize based on intelligent network, also can realize based on existing mobile communication network.At first the specific implementation process of the present invention in intelligent network is described below.Above-described network refers to the all-network entity in the network except terminal.

Fig. 1 shows among the present invention the networking schematic diagram based on intelligent network, as shown in Figure 1, the functional entity of realizing the caller location display business based on intelligent network comprises: service control point (SCP, Service ControlPoint), mobile positioning center (MPC, Mobile Position Center), position determining entity (PDE, Position Determining Entity), attaching position register (HLR, Home Location Register) and (MSC of mobile switching centre, Mobile Switch Center)/Visited Location Registor (VLR, Visitor Location Register) etc.

Wherein, after SCP determines that user's caller location display business is in state of activation, send Location Request to MPC; After MPC receives Location Request, send Location Request to PDE; After PDE receives Location Request, with MSC, base station controller (BSC, Base Station Controller), communication terminal etc. carries out information interaction, various metrical informations and data are finished concrete location Calculation by specific algorithm, and report final positioning result to MPC; MPC is to SCP restoring to normal position result, and SCP offers terminal called by MSC with positioning result and shows.For making on the terminal called calling terminal current location information that shows text formatting, the positioning result that SCP can provide MPC carries out corresponding conversion, and then by MSC positioning result is offered terminal called and show.Respectively each functional entity is elaborated below.

PDE is the network element relevant with concrete location technology, in relevant location service, determines the current location information of communication terminal by PDE.Each PDE can support a kind of localization method, as enhancement mode forward link three limit positioning modes (AFLT) or enhancement mode observed time difference method localization methods such as (E-OTD).Each PDE serves specific overlay area, and may there be overlapped situation in the coverage of different PDE, even there is the PDE of identical localization method or the different localization methods of use may serve the zone that a certain MPC covers.PDE needs built-in GPS receiver for the monitor satellite signal, can be used for PDE self to the calculating of communication terminal current location on the one hand, the information that comprises ephemeris, calendar etc. of acquisition can be provided to communication terminal on the other hand, exactly self be positioned so that the communication terminal of assisting to have positioning function is faster.PDE links to each other with MPC, MSC by the Signaling System Number 7 net.PDE can carry out indirect information interaction with communication terminal, and the information interaction between PDE and BSC or the MSC be followed the IS801 agreement by BSC or MSC as intermediate transfer equipment.

MPC is the control and management center of positioning action handling process and the control and management center of positional information, specific as follows: as to be used for the communication terminal positional information and to obtain, transmit, the gateway function of storage and control, reception is from SCP, short message service center (SC), emergency services network entity (ESNE, EmergencyService Network Entity), urgency traffic message entity (ESME, Emergency ServiceMessage Entity) or location service (LCS, Location Service) Location Request of the application entity of client use location information such as (LCS Client), handle the back accordingly and send this Location Request to PDE, receive the positioning result that PDE provides then, and this positioning result is back to SCP, SC, application entities such as LCS client.MPC can support Signaling System Number 7 and transmission control protocol (TCP, Transfer Control Protocol)/Internet protocol (IP, Internet Protocol) two kinds of access waies, and has the protocol conversion function between Signaling System Number 7 and the IP, a MSC can only link to each other with a MPC, a MPC can link to each other with a plurality of MSC, and a PDE can only link to each other with a MPC.MPC can be undertaken alternately by Signaling System Number 7 net and HLR, with association attributeses such as the MSC that determines the current place of communication terminal and user rights, thereby selects corresponding PDE to position operation.MPC can store the relevant information of user's local internet registration management mechanism (LIR) pattern, carries out control and the management of personal secrets aspect for the user.MPC links to each other by Signaling System Number 7 net and PSTN (PSTN, Public Switched Telephone Network), SC, SCP, can provide the location service of different field to use.Some location services that MPC links to each other with PSTN can be provided with public safety, promptly special service is relevant are used, and lose alert service etc. as the stolen alert service of 911 business, vehicle, the children that introduce previously.MPC links to each other with SC can provide all places service application based on short message platform, as personnel tracking, asset management business etc.MPC links to each other with SCP can provide all places service application based on intelligent network platform, as location-based charging (LBC), location-based call route selecting (ERC) etc.MPC can be by TCP/IP and the various (ISP of ISP, Internet Service Provider) links to each other, and combine with network entities such as SC, SCP, can provide abundanter, business-like, based on the Internet, relevant with position information service, as location-based travel information service, the service of Yellow Page number, the service of restaurant, hotel, traffic-information service, shopping guide service etc.

LCS client and MPC carry out alternately, thereby in designated parameters, as measuring quality of location service parameter (PQoS) scope, obtain the network entity of one or more communication terminal current location informations, be mainly used in the management of data format processing, data representation and the user interface of positional information.Can support Signaling System Number 7 to be connected between LCS client and the MPC and be connected two kinds of connected modes with IP.Because SCP is the node of IN service, SC is the node of short message service, SCP and SC can be regarded as the LCS client of specific area from the angle of business.

In addition, in the networking schematic diagram shown in Fig. 1, the network entity that ESNE, ESME and public safety answering point (PSAP, Public Safety Answering Point) etc. belong to urgency traffic is not described out.ESNE is used for continuing and handling of urgent call phonological component, and ESME is used for route and the processing of the outer message of the band relevant with urgent call, and PSAP is used for urgency traffic urgent call is replied.

Fig. 2 shows among the present invention based on the signatory caller location display business implementation procedure schematic diagram of the calling subscriber of intelligent network, as shown in Figure 2, the user of the caller communication terminal caller location display business of contracting, and in the SCP of intelligent network registration caller location display business, may further comprise the steps based on the implementation procedure of intelligent network:

Step 201～step 203: communication terminal is started shooting or is moved to a new MSC, to the MSC initiation registration request at current place; After MSC receives the registration request, send the position register request that carries communication terminal sign and MSC sign to HLR; After HLR receives position register request, return the position register response that carries the trigger that comprises SCP address to MSC, the MSC storage comprises the trigger of SCP address.

Step 204～step 205: the caller communication terminal makes a call to called communication terminal, after originating MS C receives call request, the SCP of appointment sends analytical information message (ANLYZD) in the trigger, carry the mobile number book (MDN) of originating MS C sign, called communication terminal among this ANLYZD, etc.

After step 206～step 207:SCP receives ANLYZD, the caller location display business of determining called communication terminal user is in state of activation, send the Location Request that carries caller communication terminal sign to MPC then, request provides the current location information of caller communication terminal, after MPC receives Location Request, send the Location Request that carries caller communication terminal sign to PDE, after PDE receives Location Request, the caller communication terminal is positioned, obtain caller communication terminal current position information, the current location information of caller communication terminal is provided to MPC then, after MPC receives the current location information of caller communication terminal, transmit the current location information of caller communication terminal to SCP, after SCP receives the current location information of caller communication terminal, return analytical information response (anlyzd) to originating MS C, carry the service identification (DMH_SVCID) of caller location display business among this anlyzd, demonstration text (DISPLAYTEXT) parameter that comprises caller communication terminal current location information, etc.

Step 208: after originating MS C receives anlyzd, trigger the Location trigger, HLR to called communication terminal sends position requests (LOCREQ), carry called communication terminal sign, originating MS C sign, charging identifier, the current TRIGTYPE parameter that triggers the Location trigger of appointment among this LOCREQ, comprise the DISPLAYTEXT parameter of caller communication terminal current location information, etc.

Step 209: after called HLR is received LOCREQ, determine MSC and the VLR at this current place of called communication terminal according to called communication terminal sign, be called MS C and called VLR, send route requests (ROUTREQ) to called VLR then, carry the DISPLAYTEXT parameter that called communication terminal identifies, comprises caller communication terminal current location information among this ROUTREQ, etc.

Step 210: after called VLR receives ROUTREQ, send ROUTREQ to called MS C, carry the DISPLAYTEXT parameter that called communication terminal identifies, comprises caller communication terminal current location information among this ROUTREQ, etc.

Step 211: after called MS C receives ROUTREQ, storage caller communication terminal current location information, and to called VLR transmission route response (routreq), carry the roaming number parameters such as (TLDN) that promising called communication terminal distributes among this routreq.

Step 212～step 215: after called VLR receives routreq, send routreq to called HLR, carry the parameters such as TLDN of called communication terminal among this routreq; After called HLR is received routreq, send position response (locreq) to originating MS C, carry the parameters such as TLDN of called communication terminal among this locreq; After originating MS C receives locreq, set up calling with called MS C, called MS C initiates paging to called communication terminal, and provide the current location information of caller communication terminal to called communication terminal, this caller communication terminal current location information can during to called communication terminal ring, offer called communication terminal at called MS C.

In addition, in the processing procedure based on intelligent network, the signatory caller location display business of calling subscriber, the user of caller communication terminal can pass through service access code, make SCP determine whether the caller location display business is in state of activation, namely whether needs to provide to called communication terminal the current location information of caller communication terminal.For example, when the user of caller communication terminal made a call, if the number of calling out is called number, then SCP determined that the caller location display business is not in state of activation, does not remove to obtain the current location information of caller communication terminal; If the number of calling out is the combination of service access code and called number, then SCP determines that the caller location display business is in state of activation, obtains the current location information of caller communication terminal and offers called communication terminal.Again for example, arrange and identify the service access code that the caller location display business is in state of activation and is not in state of activation respectively, as arrange 9666 and be that the caller location display business activates access code, 9667 is caller location display business un-activation access code, when the user of caller communication terminal makes a call, if the number of calling out be 9666 with the combination of called number, then SCP determines that the caller location display business is in state of activation, obtains the current location information of caller communication terminal and offers called communication terminal; If the number of calling out be 9667 with the combination of called number, then SCP determines that the caller location display business is not in state of activation, does not remove to obtain the current location information of caller communication terminal.

Fig. 3 shows among the present invention based on the signatory caller location display business implementation procedure schematic diagram of the called subscriber of intelligent network, as shown in Figure 3, the user of the called communication terminal caller location display business of contracting, and in the SCP of intelligent network registration caller location display business, may further comprise the steps based on the implementation procedure of intelligent network:

Step 301～step 302: the caller communication terminal makes a call to called communication terminal, the originating MS C at the current place of caller communication terminal is according to the sign of terminal called, send LOCREQ to called HLR, carry originating MS C sign (MSCID) among this LOCREQ, the directory number of called communication terminal (DGTSDIAL), charging identifier (BILLID), the TRANSCAP parameter that shows each trigger type that originating MS C supports, specify current trigger type (TRIGTYPE) parameter that triggers Mobile Termination (Mobile_Termination) trigger, wireless intelligent network (the WIN that shows originating MS C, Wireless Intelligent Network) the WINCAP parameter of tenability, going back portability among this LOCREQ has location (Location) trigger, etc.

Step 303: after called HLR is received LOCREQ, C returns locreq to originating MS, carry among this locreq called communication terminal MDN, specify list of triggers (TRIGADDRLIST) parameter of senior termination (Advanced_Termination) trigger.

Step 304: after originating MS C receives locreq, trigger the Advanced_Termination trigger, the SCP of appointment sends ANLYZD in the Advanced_Termination trigger, carries MDN and the DGTSDIAL of originating MS C sign, called communication terminal among this ANLYZD, etc.

After step 305～step 306:SCP receives ANLYZD, the caller location display business of determining called communication terminal user is in state of activation, send the Location Request that carries caller communication terminal sign to MPC then, request provides the current location information of caller communication terminal, after MPC receives Location Request, send the Location Request that carries caller communication terminal sign to PDE, after PDE receives Location Request, the caller communication terminal is positioned, obtain caller communication terminal current position information, the current location information of caller communication terminal is provided to MPC then, after MPC receives the current location information of caller communication terminal, transmit the current location information of caller communication terminal to SCP, after SCP receives the current location information of caller communication terminal, C returns anlyzd to originating MS, carries the DMH_SVCID of caller location display business among this anlyzd, the DISPLAYTEXT parameter that comprises caller communication terminal current location information, etc.

Step 307: after originating MS C receives anlyzd, trigger the Location trigger, send LOCREQ to called HLR, carry called communication terminal sign, originating MS C sign, charging identifier, the current TRIGTYPE parameter that triggers the Location trigger of appointment among this LOCREQ, comprise the DISPLAYTEXT parameter of caller communication terminal current location information, etc.

Step 308: after called HLR is received LOCREQ, determine MSC and the VLR at this current place of called communication terminal according to called communication terminal sign, be called MS C and called VLR, send ROUTREQ to called VLR then, carry the DISPLAYTEXT parameter that called communication terminal identifies, comprises caller communication terminal current location information among this ROUTREQ, etc.

Step 309: after called VLR receives ROUTREQ, send ROUTREQ to called MS C, carry the DISPLAYTEXT parameter that called communication terminal identifies, comprises caller communication terminal current location information among this ROUTREQ, etc.

Step 310: after called MS C receives ROUTREQ, storage caller communication terminal current location information, and to called VLR transmission routreq, carry the parameters such as TLDN that promising called communication terminal distributes among this routreq.

Step 311～step 314: after called VLR receives routreq, send routreq to called HLR, carry the information such as TLDN of called communication terminal among this routreq; After called HLR is received routreq, send locreq to originating MS C, carry the parameters such as TLDN of called communication terminal among this locreq; After originating MS C receives locreq, set up calling with called MS C, called MS C initiates paging to called communication terminal, and provide the current location information of the caller communication terminal of storage to called communication terminal, this caller communication terminal current location information can during to called communication terminal ring, offer called communication terminal at called MS C.

In the implementation procedure of the signatory caller location display business of the above called subscriber, the caller location display business is triggered by originating MS C, also can be triggered by called MS C.

Below the specific implementation process of the present invention in mobile communications network is described.

Fig. 4 shows among the present invention based on the signatory caller location display business implementation procedure schematic diagram of the calling subscriber of mobile communications network, as shown in Figure 4, the user of the caller communication terminal caller location display business of contracting, and in HLR registration caller location display business, store the CAMEL-Subscription-Information of the caller location display business of caller communication terminal among the HLR, may further comprise the steps based on the implementation procedure of mobile communications network:

Step 401～step 403: communication terminal is started shooting or is moved to a new MSC, to the MSC initiation registration request at current place; After MSC receives the registration request, send the position register request that carries communication terminal sign and MSC sign to HLR; After HLR receives position register request, return the position register response that carries caller location display business signatory mark to MSC, MSC storage caller location display business signatory mark.

Step 404～step 406: the caller communication terminal makes a call to called communication terminal, after originating MS C receives call request, caller location display business signatory mark according to storage, can by the cell information of self storage, also can be by with positioning units such as MPC or PDE mutual, obtain the current location information of caller communication terminal, send LOCREQ to called HLR then, carry information such as caller communication terminal current location information, originating MS C sign, called communication terminal sign among this LOCREQ.

Step 407: after called HLR is received LOCREQ, determine MSC and the VLR at this current place of called communication terminal according to called communication terminal sign, be called MS C and called VLR, send ROUTREQ to called VLR then, carry information such as caller communication terminal current location information, called communication terminal sign among this ROUTREQ.

Step 408～step 410: after called VLR receives ROUTREQ, send ROUTREQ to called MS C, carry information such as caller communication terminal current location information, called communication terminal sign among this ROUTREQ; After called MS C received ROUTREQ, the current location information of storage caller communication terminal sent route response routreq to called VLR then, carries the information such as TLDN that promising called communication terminal distributes among this routreq; After called VLR receives routreq, send routreq to called HLR, carry the information such as TLDN of called communication terminal among this routreq.

Step 411～step 413: after called HLR is received routreq, send locreq to originating MS C, carry the information such as TLDN of called communication terminal among this locreq; After called HLR is received routreq, send locreq to originating MS C, carry the parameters such as TLDN of called communication terminal among this locreq; After originating MS C receives locreq, set up calling with called MS C, called MS C initiates paging to called communication terminal, and provide the current location information of the caller communication terminal of storage to called communication terminal, this caller communication terminal current location information can during to called communication terminal ring, offer called communication terminal at called MS C.

Fig. 5 shows among the present invention based on signatory caller location display business embodiment one schematic diagram of the called subscriber of mobile communications network, as shown in Figure 5, the user of the called communication terminal caller location display business of contracting, and in HLR registration caller location display business, store the CAMEL-Subscription-Information of the caller location display business of caller communication terminal among the HLR, may further comprise the steps based on the implementation procedure of mobile communications network:

Step 501～step 502: the caller communication terminal makes a call to called communication terminal, the originating MS C at the current place of caller communication terminal is according to the sign of terminal called, HLR to called communication terminal sends LOCREQ, carries information such as originating MS C sign, called communication terminal sign among this LOCREQ.

Step 503～step 505: after called HLR is received LOCREQ, called communication terminal CAMEL-Subscription-Information according to storage, determine the signatory caller location display business of user of called communication terminal, send the location indication to originating MS C then, notice originating MS C obtains the current location information of caller communication terminal; After originating MS C receives location indication, can by the cell information of self storage, also can by with positioning units such as MPC or PDE alternately, obtain the current location information of caller communication terminal, return to called HLR then.

Step 506: after called HLR is received caller communication terminal current location information, determine MSC and the VLR at this current place of called communication terminal according to called communication terminal sign, be called MS C and called VLR, send ROUTREQ to called VLR then, carry information such as caller communication terminal current location information, called communication terminal sign among this ROUTREQ.

Step 507～step 509: after called VLR receives ROUTREQ, send ROUTREQ to called MS C, carry information such as caller communication terminal current location information, called communication terminal sign among this ROUTREQ; After called MS C received ROUTREQ, the current location information of storage caller communication terminal sent route response routreq to called VLR then, carries the information such as TLDN that promising called communication terminal distributes among this routreq; After called VLR receives routreq, send routreq to called HLR, carry the information such as TLDN of called communication terminal among this routreq.

Step 510～step 512: after called HLR is received routreq, send locreq to originating MS C, carry the information such as TLDN of called communication terminal among this locreq; After called HLR is received routreq, send locreq to originating MS C, carry the parameters such as TLDN of called communication terminal among this locreq; After originating MS C receives locreq, set up calling with called MS C, called MS C initiates paging to called communication terminal, and provide the current location information of the caller communication terminal of storage to called communication terminal, this caller communication terminal current location information can during to called communication terminal ring, offer called communication terminal at called MS C.

Fig. 6 shows among the present invention based on signatory caller location display business embodiment two schematic diagrames of the called subscriber of mobile communications network, as shown in Figure 6, the user of the called communication terminal caller location display business of contracting, and in HLR registration caller location display business, store the CAMEL-Subscription-Information of the caller location display business of called communication terminal among the HLR, may further comprise the steps based on the implementation procedure of mobile communications network:

Step 601～step 602: the caller communication terminal makes a call to called communication terminal, the originating MS C at the current place of caller communication terminal is according to the sign of terminal called, HLR to called communication terminal sends LOCREQ, carries information such as originating MS C sign, called communication terminal sign among this LOCREQ.

Step 603: after called HLR is received LOCREQ, called communication terminal CAMEL-Subscription-Information according to storage, determine the signatory caller location display business of user of called communication terminal, and determine MSC and the VLR at this current place of called communication terminal according to called communication terminal sign, be called MS C and called VLR, send ROUTREQ to called VLR then, carry information such as called communication terminal sign among this ROUTREQ.

Step 604～step 606: after called VLR receives ROUTREQ, send ROUTREQ to called MS C, carry information such as called communication terminal sign among this ROUTREQ; After called MS C receives ROUTREQ, send route response routreq to called VLR, carry the information such as TLDN that promising called communication terminal distributes among this routreq; After called VLR receives routreq, send routreq to called HLR, carry the information such as TLDN of called communication terminal among this routreq.

Step 607: after called HLR is received routreq, send locreq to originating MS C, carry the parameter such as TLDN of called communication terminal among this locreq and be used to indicate the location indication that originating MS C obtains caller communication terminal current location information.

Step 608～step 610: after originating MS C receives locreq, can be by the cell information of self storing, also can be by with positioning units such as MPC or PDE mutual, obtain the current location information of caller communication terminal, set up with called MS C then and call out, the current location information of caller communication terminal is provided to called MS C, called MS C initiates paging to called communication terminal, and provide the current location information of caller communication terminal to called communication terminal, this caller communication terminal current location information can during to called communication terminal ring, offer called communication terminal at called MS C.

Fig. 7 shows among the present invention based on signatory caller location display business embodiment three schematic diagrames of the called subscriber of mobile communications network, the user of the called communication terminal caller location display business of contracting, and in HLR registration caller location display business, store the CAMEL-Subscription-Information of the caller location display business of called communication terminal among the HLR, may further comprise the steps based on the implementation procedure of mobile communications network:

Step 701～step 703: the caller communication terminal makes a call to called communication terminal, the originating MS C at the current place of caller communication terminal at first obtains the current location information of caller communication terminal, can by the cell information of self storage, also can be by with positioning units such as MPC or PDE mutual, obtain the current location information of caller communication terminal, then according to the sign of terminal called, HLR to called communication terminal sends LOCREQ, carries information such as caller communication terminal current location information, originating MS C sign, called communication terminal sign among this LOCREQ.

Step 704: called HLR is received the called communication terminal CAMEL-Subscription-Information according to storage, determine the signatory caller location display business of user of called communication terminal, and determine MSC and the VLR at this current place of called communication terminal according to called communication terminal sign, be called MS C and called VLR, send ROUTREQ to called VLR then, carry information such as caller communication terminal current location information, called communication terminal sign among this ROUTREQ.If the signatory caller location display business of the user of called communication terminal does not then carry the current location information of caller communication terminal in the ROUTREQ that called HLR sends to called VLR.

Step 705～step 707: after called VLR receives ROUTREQ, send ROUTREQ to called MS C, carry information such as caller communication terminal current location information, called communication terminal sign among this ROUTREQ; After called MS C received ROUTREQ, the current location information of storage caller communication terminal sent route response routreq to called VLR then, carries the information such as TLDN that promising called communication terminal distributes among this routreq; After called VLR receives routreq, send routreq to called HLR, carry the information such as TLDN of called communication terminal among this routreq.

Step 708～step 710: after called HLR is received routreq, send locreq to originating MS C, carry the information such as TLDN of called communication terminal among this locreq; After called HLR is received routreq, send locreq to originating MS C, carry the parameters such as TLDN of called communication terminal among this locreq; After originating MS C receives locreq, set up calling with called MS C, called MS C initiates paging to called communication terminal, and provide the current location information of the caller communication terminal of storage to called communication terminal, this caller communication terminal current location information can during to called communication terminal ring, offer called communication terminal at called MS C.

Fig. 8 shows among the present invention based on signatory caller location display business embodiment four schematic diagrames of the called subscriber of mobile communications network, the user of the called communication terminal caller location display business of contracting, and in HLR registration caller location display business, store the CAMEL-Subscription-Information of the caller location display business of called communication terminal among the HLR, may further comprise the steps based on the implementation procedure of mobile communications network:

Step 801～step 802: the caller communication terminal makes a call to called communication terminal, the originating MS C at the current place of caller communication terminal is according to the sign of terminal called, HLR to called communication terminal sends LOCREQ, carries information such as originating MS C sign, called communication terminal sign among this LOCREQ.

Step 803: after called HLR is received LOCREQ, called communication terminal CAMEL-Subscription-Information according to storage, determine the signatory caller location display business of user of called communication terminal, and determine MSC and the VLR at this current place of called communication terminal according to called communication terminal sign, be called MS C and called VLR, send ROUTREQ to called VLR then, carry among this ROUTREQ and be used to indicate called MS C and obtain information such as the location indication of caller communication terminal current location information, called communication terminal sign.

Step 804～step 807: after called VLR receives ROUTREQ, send ROUTREQ to called MS C, carry among this ROUTREQ and be used to indicate called MS C and obtain information such as the location indication of caller communication terminal current location information, called communication terminal sign; After called MS C receives ROUTREQ, can by the cell information of self storage, also can be by with positioning units such as MPC or PDE mutual, obtain and store the current location information of caller communication terminal, send route response routreq to called VLR then, carry the information such as TLDN that promising called communication terminal distributes among this routreq; After called VLR receives routreq, send routreq to called HLR, carry the information such as TLDN of called communication terminal among this routreq.

Step 808～step 810: after called HLR is received routreq, send locreq to originating MS C, carry the information such as TLDN of called communication terminal among this locreq; After called HLR is received routreq, send locreq to originating MS C, carry the parameters such as TLDN of called communication terminal among this locreq; After originating MS C receives locreq, set up calling with called MS C, called MS C initiates paging to called communication terminal, and provide the current location information of the caller communication terminal of storage to called communication terminal, this caller communication terminal current location information can during to called communication terminal ring, offer called communication terminal at called MS C.

Fig. 9 shows among the present invention based on signatory caller location display business embodiment five schematic diagrames of the called subscriber of mobile communications network, the user of the called communication terminal caller location display business of contracting, and in HLR registration caller location display business, store the CAMEL-Subscription-Information of the caller location display business of called communication terminal among the HLR, may further comprise the steps based on the implementation procedure of mobile communications network:

Step 901～step 902: the caller communication terminal makes a call to called communication terminal, the originating MS C at the current place of caller communication terminal is according to the sign of terminal called, HLR to called communication terminal sends LOCREQ, carries information such as originating MS C sign, called communication terminal sign among this LOCREQ.

Step 903～step 904: after called HLR is received LOCREQ, called communication terminal CAMEL-Subscription-Information according to storage, determine the signatory caller location display business of user of called communication terminal, mutual by with positioning units such as MPC or PDE, obtain the current location information of caller communication terminal, determine MSC and the VLR at this current place of called communication terminal then according to called communication terminal sign, be called MS C and called VLR, send ROUTREQ to called VLR then, carry caller communication terminal current location information among this ROUTREQ, information such as called communication terminal sign.

Step 905～step 907: after called VLR receives ROUTREQ, send ROUTREQ to called MS C, carry information such as caller communication terminal current location information, called communication terminal sign among this ROUTREQ; After called MS C received ROUTREQ, the current location information of storage caller communication terminal sent route response routreq to called VLR then, carries the information such as TLDN that promising called communication terminal distributes among this routreq; After called VLR receives routreq, send routreq to called HLR, carry the information such as TLDN of called communication terminal among this routreq.

Step 908～step 910: after called HLR is received routreq, send locreq to originating MS C, carry the information such as TLDN of called communication terminal among this locreq; After called HLR is received routreq, send locreq to originating MS C, carry the parameters such as TLDN of called communication terminal among this locreq; After originating MS C receives locreq, set up calling with called MS C, called MS C initiates paging to called communication terminal, and provide the current location information of the caller communication terminal of storage to called communication terminal, this caller communication terminal current location information can during to called communication terminal ring, offer called communication terminal at called MS C.

In addition, also can directly be obtained the current location information of caller communication terminal by called MS C, contracted behind the caller location display business as the user of the called communication terminal of called HLR notice called MS C, or called communication terminal carries out position when registration, the signatory caller location display business of the called communication terminal user of called HLR notice called MS C, called MS C is clearly known to be obtained caller communication terminal current location information, at this moment, called MS C identifies the current location information that obtains the caller communication terminal according to the caller communication terminal, and called MS C offers called communication terminal with the caller communication terminal current location information that obtains; Or called MS C sends the Location Request that carries caller communication terminal sign to MPC, after MPC receives Location Request, send the Location Request that carries caller communication terminal sign to PDE, after PDE receives Location Request, the caller communication terminal is positioned, obtain caller communication terminal current position information, the current location information of caller communication terminal is provided to MPC then, after MPC receives the current location information of caller communication terminal, to the current location information of called MS C forwarding caller communication terminal, called MS C offers called communication terminal with the caller communication terminal current location information that obtains.

During user's signing service of caller communication terminal, the caller location display business of can contracting, the caller location security service of also can contracting.When the user of caller communication terminal contracts the caller location security service, the caller location display business if the user of called communication terminal contracts, then network side can be handled according to the priority of business, when the caller location security service priority of contracting as caller communication terminal user is higher, then the network side refusal provides the current location information of caller communication terminal to called communication terminal, and for example, the caller location display business priority that called communication terminal user contracts is higher, and then network side provides the current location information of caller communication terminal to called communication terminal; Also can directly refuse to provide to called communication terminal the current location information of caller communication terminal.

Above-described mobile communications network can be global mobile communication (GSM) network, code division multiple access (CDMA) 2000 networks, CDMA1x network, Wideband Code Division Multiple Access (WCDMA) (WCDMA) network, GPRS (GPRS) network, etc.

The above caller communication terminal current location information is presented at before conversation on the called communication terminal, also can be presented at behind the end of conversation on the called communication terminal.The current location information of above-described caller communication terminal has called MS C to be sent to the base station sub-system (BSC) at the current place of called communication terminal, be sent to called communication terminal by BSC then, the current location information of caller communication terminal is carried in BSC and shows in (ExtendedDisplay) parameter by demonstration (Display) parameter or the expansion of forward dedicated signaling logic channel to the Alertwith Information Message message of called communication terminal transmission.

Because the positional information that network side obtains is the positional information form that network can be identified, be not easy to User Recognition, therefore, identify the current location information of caller communication terminal for the convenience of the user, caller communication terminal current location information need be converted into the positional information of text formatting.Because other network entities such as caller location acquiring unit such as SCP, MSC or HLR all can provide the current location information of caller communication terminal directly or indirectly to called communication terminal, like this, just need the corresponding relation between storage text formatting positional information and the corresponding network format location information in caller location acquiring unit or other network entities, make the user of called communication terminal can obtain the positional information of the text formatting being convenient to identify.Since the network entity that is equal to HLR also can to

When the positional information of Network Recognition is area identification, as cell ID, but the corresponding relation between setting area sign and the text formatting positional information, as shown in table 1, the area identification that storage arranges in caller location acquiring unit or other network entities and the corresponding relation between the text formatting positional information, caller location acquiring unit or other network entities are determined corresponding text formatting positional information according to area identification and the corresponding relation between the text formatting positional information and the area identification that obtains of storage.

Area identification	The text formatting positional information
		1	Snake mouth moon gulf, Nanshan District
2	Nanshan District's snake saliva bayhead
		3	Park, the four seas, Nanshan District
4	Near the Longhua Zhen government of Longgang District

Table one

If the positional information of Network Recognition is coordinate form, then adopt the mode of above-mentioned tables of data, it is excessive to produce data volume, the problem that search speed is slow.Among the present invention, to be divided into a plurality of rectangular areas corresponding to the region of a text formatting positional information, by up and down coordinate and each rectangular area of left and right sides coordinates logo, as shown in figure 10, like this, can then according to the corresponding relation between area identification in the table two and the text formatting positional information, determine corresponding text formatting positional information according to coordinate search to corresponding rectangular area.

Area identification	The text formatting positional information
		1	Snake mouth moon gulf, Nanshan District
2	Snake mouth moon gulf, Nanshan District
		3	Nanshan District's snake saliva bayhead
4	Nanshan District's snake saliva bayhead
		5	Nanshan District's snake saliva bayhead
6	Park, the four seas, Nanshan District
		7	Park, the four seas, Nanshan District
8	Park, the four seas, Nanshan District

Table two

For example, coordinate is (6.5,7.8), search for left coordinate less than 6.5, right coordinate greater than 6.5, down coordinate less than 7.8, go up coordinate greater than 7.8 area identification, Search Results is zone 3, according to the corresponding relation between area identification in the table two and the text formatting positional information, determine that the text formatting positional information corresponding with regional 3 is Nanshan District's snake saliva bayhead then.

Corresponding relation between above-described area identification and the text formatting positional information can be stored on the SCP, after SCP obtains caller communication terminal positional information by MPC, PDE, is converted to the text formatting positional information and offers called communication terminal; Also can be stored on the originating MS C, after originating MS C self obtains caller communication terminal positional information or obtains caller communication terminal positional information by MPC, PDE, be converted to the text formatting positional information, and offer called communication terminal by called VLR, the called MS C of called communication terminal; Also can be stored on the HLR of called communication terminal, originating MS C self offers HLR after obtaining caller communication terminal positional information or obtaining caller communication terminal positional information by MPC, PDE, be converted to the text formatting positional information by HLR, and offer called communication terminal by called VLR, the called MS C of called communication terminal; Also can be stored on the called MS C, after called MS C self obtains caller communication terminal positional information or obtains caller communication terminal positional information by MPC, PDE, be converted to the text formatting positional information and offer called communication terminal.In addition, the corresponding relation between area identification and the text formatting positional information also can be stored in the positioning units such as MPC, PDE, like this, can directly provide the positional information of text formatting to caller location acquiring units such as SCP, originating MS C.

In display of calling communication terminal current location information, further the display of calling communication terminal identifies, the display of calling communication terminal is designated existing known technology on called communication terminal, does not maintain close ties with realization of the present invention, does not repeat them here.

In a word, the above is preferred embodiment of the present invention only, is not for limiting protection scope of the present invention.

Claims

1. the method for a display of calling positional information, the caller communication terminal makes a call to called communication terminal, after originating MS C receives call request, it is characterized in that the method includes the steps of:

A, network-triggered caller location display business, SCP in the network, or called HLR, originating MS C or called MS C obtain the current location information of the text formatting of caller communication terminal according to the area identification of the area identification of storage and the corresponding relation between the text formatting positional information and the caller communication terminal that obtains;

B, when the current location information of the text formatting that is obtained the caller communication terminal by described SCP, network uses the demonstration text DISPLAYTEXT parameter of message related to calls, the demonstration Display parameter of the Alert withInformation Message message after perhaps calling out or expansion show Extended Display parameter, and the current location information of the text formatting of caller communication terminal is offered called communication terminal displays;

When the current location information of the text formatting that is obtained the caller communication terminal by called HLR, originating MS C or called MS C, Display parameter or the Extended Display parameter of the Alert with Information Message message after network use to be called out offer called communication terminal displays with the current location information of the text formatting of caller communication terminal.

2. method according to claim 1, it is characterized in that, when the current location information of the text formatting that is obtained the caller communication terminal by described SCP, called HLR, originating MS C or called MS C, further comprise in the steps A: the relevant information of a, network based current calling, judge whether to provide to called communication terminal the current location information of caller communication terminal, if then finish the caller location display business; Otherwise, finish current flow process.

3. method according to claim 2 is characterized in that, described step a is: whether the user that network is judged the caller communication terminal signatory caller location display business, if then finish the caller location display business; Otherwise, finish current flow process.

4. method according to claim 2 is characterized in that, described step a is: whether the user that network is judged called communication terminal signatory caller location display business, if then finish the caller location display business; Otherwise, finish current flow process.

5. method according to claim 2 is characterized in that, described step a is: the user that network is judged the caller communication terminal whether signatory caller location forbids display business, if then finish current flow process; Otherwise, finish the caller location display business.

6. method according to claim 2, it is characterized in that described step a is: network based caller communication terminal number user calling judges whether to provide to called communication terminal the current location information of caller communication terminal, if then finish the caller location display business; Otherwise, finish current flow process.

7. method according to claim 1 is characterized in that,

Described steps A is: the caller location display business is toggled to SCP, and SCP obtains the current location information of the text formatting of caller communication terminal according to the area identification of the area identification of storage and the corresponding relation between the text formatting positional information and the caller communication terminal that obtains;

Described step B is: SCP is by caller crosspoint and called crosspoint or called crosspoint, use the demonstration text DISPLAYTEXT parameter of message related to calls, the demonstration Display parameter of the Alert withInformation Message message after perhaps calling out or expansion show Extended Display parameter, and the current location information of the text formatting of caller communication terminal is offered called communication terminal displays.

8. method according to claim 7, it is characterized in that, obtain described in the steps A before the current location information of text formatting of caller communication terminal, further comprise: SCP judges whether signatory caller location display business of caller communication terminal user, if then obtain the current location information of the text formatting of caller communication terminal.

9. method according to claim 7, it is characterized in that, the user of the caller communication terminal caller location display business of contracting, before described caller communication terminal makes a call to called communication terminal, further comprise: when the caller communication terminal carried out the position registration, HLR provided the SCP address of control caller location display business to crosspoint.

10. according to claim 7,8 or 9 described methods, it is characterized in that, the user of the caller communication terminal caller location display business of contracting, SCP described in the steps A obtains before the current location information of text formatting of caller communication terminal, further comprise: SCP is according to caller communication terminal number user calling, judge the current whether signatory caller location display business of caller communication terminal user, if then obtain the current location information of the text formatting of caller communication terminal.

11. method according to claim 10 is characterized in that, described caller communication terminal number user calling comprises access code and the called number for the current caller location display business of whether contracting of sign.

12. method according to claim 1 is characterized in that,

In steps A, obtained the current location information of the text formatting of caller communication terminal by originating MS C.

13. method according to claim 12 is characterized in that, the user of the caller communication terminal caller location display business of contracting,

Before described caller communication terminal makes a call to called communication terminal, further comprise: when the caller communication terminal carries out the position registration, HLR provides caller communication terminal user the sign of signatory caller location display business to originating MS C, and originating MS C stores this sign;

In steps A, originating MS C triggers the caller location display business according to the sign of storage, obtains the current location information of the text formatting of caller communication terminal.

14. method according to claim 12 is characterized in that, the user of the called communication terminal caller location display business of contracting,

In steps A, originating MS C obtains the current location information of the text formatting of caller communication terminal, and be sent to called HLR, called HLR judges according to the user signing contract information of storage whether the caller location display business that caller communication terminal user contracts is in state of activation, if, execution in step B then;

Described step B is: called HLR is by called crosspoint, the demonstration Display parameter of the Alert withInformation Message message after use calling out or expansion show Extended Display parameter, and the current location information of the text formatting of caller communication terminal is offered called communication terminal displays.

15. method according to claim 1 is characterized in that, further comprises before the described steps A: called communication terminal carries out the position registration, the signatory caller location display business of the called communication terminal user of HLR notice called MS C.

16. method according to claim 1 is characterized in that, further comprise before the described steps A: HLR is toggled to called MS C with the caller location display business.