CN102348280A - Terminal location information obtaining method, system and device - Google Patents
Terminal location information obtaining method, system and device Download PDFInfo
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Abstract
The invention relates to a terminal location information obtaining method, system and device. The method comprises the following steps of: providing district location information of UE (User Equipment) to a location-based service network element actively or according to a search of the location-based service network element by a mobile management network element; and providing the district location information of the UE to an IMS (IP Multimedia Subsystem) network element actively or according to the search of the IMS network element by the location-based service network element. According to the method provided by the invention, the district location information of the terminal can be obtained by the IMS network element without a positioning system.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of method, system, equipment (comprising mobile management network element and location-based service network element) that obtains terminal positional information.
Background technology
IP Multimedia System (IMS; IP Multimedia Subsystem) be the core of New Generation of Communication network; Its distinguishing feature is to have adopted Session initiation Protocol (SIP; Session Initiation Protocol) system, communication with insert irrelevantly, and possess multiple media business controlled function and separate with bearing capacity; Calling separates with session; Application separates with service, business and network detach, and multiple functions such as mobile network and internet integrated services.
User terminal (User Equipment with IMS ability; UE), can be linked in the IMS IP multimedia subsystem, IMS through multiple access network, as: the Long Term Evolution (SAE of system; System Architecture Evolution) network, WLAN (wireless local area network) (Wireless LAN, WLAN) etc.;
In the IMS business; The current position of a lot of professional and UE is relevant; Move such as: family that to charge in the fixed line be that (Public Security Answer Point also is according to the position difference and differentiated PSAP) to the public safety answering point that is equivalent to the police office location difference, that distribute for UE in the IMS urgent call.
At GPRS (GPRS; General Packet Radio Service) network, the Long Term Evolution (SAE of system; System Architecture Evolution) on the network; A kind of subsystem of the UE of inquiry positional information is provided for the IMS IP multimedia subsystem, IMS; Be positioning service system (Location Service; LCS), can connect IMS operation layer and GPRS, SAE Access Layer, with the particular location of positioning UE and report to the IMS operation layer.
Fig. 1 is linked into the Organization Chart of IMS IP multimedia subsystem, IMS for UE in the prior art through SAE, and Fig. 2 is linked into the IMS IP multimedia subsystem, IMS for describing UE in detail through SAE, and realizes the Organization Chart of IMS urgent call and terminal positioning.Like Fig. 1, shown in 2, comprising: SAE network portion, policy and charging control (PCC, Policy Charging Control) partly, location-based service (LCS, Location Service) part and IMS urgency traffic part.
Wherein, Bearer management and the mobile management of the network element of SAE network portion in order to bottom to be provided; Comprise: it is SAE gateway (SAE GW) that the wireless base station of enhancing (eNodeB), Mobility Management Entity (MME, Mobility Management Entiy) and user face data route are handled.ENodeB is the control appliance of the main interface-free resources of follow-on wireless access network, and higher up-downgoing speed can be provided, lower transmission delay and reliable more wireless transmission.MME be in charge of and store UE context (such as, UE/ user ID, mobility management states, user security parameters etc.), for the user distributes temporary mark, when UE quarters at this tracing area or this network, be responsible for this user is carried out authentication.SAE gateway (user plane functions entity) can be divided into two kinds of gateway (S-GW, Serving GW) and grouped data network gateways (P-GW, PDN GW).S-GW be between SAE system and 3GPP system mobile anchor point and and evolution UTRAN (E-UTRAN) between mobile anchor point.P-GW is the borde gateway of SAE and PDN, is responsible for the access of PDN, between SAE and PDN, transmits function such as data.
The network element of LCS part comprises enhanced service mobile positioning center (E-SMLC, Enhanced SMLC) and Gateway Mobile Location Center (GMLC, Gateway Mobile Location Center).E-SMLC is responsible for accepting the measurement report of UE, issues the physical location of positional parameter, calculating UE etc. to UE.GMLC is responsible for positional information being provided, obtaining the positional information of UE from bearing bed to operation layer.
The part of IMS urgency traffic is in order to the session of control and processing urgent call.Wherein, The IMS urgent call partly comprises: home subscriber server (HSS; Home Subscriber Server), emergency call session controlled function (E-CSCF; Emergency Call Session Control Function), position requests function (LRF, Location Require Function) and PSAP.The subscription data of HSS leading subscriber is positioned at home network.The core network element of E-CSCF control emergent session process is positioned at the visit net.In fact PSAP is exactly police station.LRF is a logical functional entity, and for E-CSCF, PSAP etc. provides the positional information of UE, LRF can independently dispose, and also possibly be included in other location server, as be integrated among the GMLC.
The IMS terminal when making a call, the location information of cell of the Access Network at the current place of carried terminal in session initiation message, i.e. the current Cell ID of carried terminal in INVITE is so that the IMS operation layer triggers the business relevant with the position.Such as: in the sensitive billing of position, the IMS operation layer can adopt different charging policy according to the difference of current position, terminal; Perhaps, in the IMS urgent call, the IMS operation layer is selected the urgent call processing center according to the band of position at terminal.
Yet the IMS terminal wrong subdistrict position may be provided, thereby the IMS application layer can not thoroughly believe the subdistrict position that the IMS terminal is provided for many reasons.A kind of typical situation is in the sensitive billing of position: certain IMS terminal is in the A of sub-district; Enjoy low speech rate; In the time of outside moving to sub-district A, the IMS terminal still uses sub-district A as its sub-district that reports when making a call, and the deception network is to enjoy low speech rate.
Thereby, when the IMS operation layer when receiving the conversation request that the IMS terminal is initiated, the subdistrict position that the checking IMS terminal of must having the ability is provided is correct.
Current, the IMS operation layer can (Location Service LCS) inquires the position at current place, terminal through location-based service.With the IMS urgent call is example, and Fig. 3 has described in handling emergency calling process, and the IMS network element is retrieved as the existing flow chart of realizing urgent call through the LCS navigation system from the SAE access network, as shown in Figure 3, mainly comprises the steps:
S301, UE are attached to the SAE network, are assigned with the IP address, and network is set up default bearing for it.Simultaneously, the address of MME is registered among the HSS.
In this step, when UE initially was attached to the SAE network, UE need provide wireless access capability (RAT Capability), the core net ability (Core Network Capability) of UE usually.The LCS stationkeeping ability that in the core net ability, includes UE, the LCS stationkeeping ability of UE specifically comprises: whether UE supports the LCS location algorithm that LCS locatees, UE supported etc.
In addition, need to prove that when UE initially adheres to, if there is effective IMSI in UE, then MME will obtain the user data of UE from the HSS of home network, the stationkeeping ability that wherein possibly comprise UE is described.But, not having effective IMSI, do not have the situation of blocking for UE, MME can not obtain the user data of UE from HSS.And, the ability that is disposed in the user data of UE, thus possibly make that the actual location ability of stationkeeping ability and UE equipment in the user data is inconsistent because UE equipment changes.Therefore, MME can not expect from the user data of UE, to obtain the stationkeeping ability of UE accurately, and should be as the criterion with the stationkeeping ability that UE reports.
S302, UE initiates urgent call, and urgent call is routed to E-CSCF.
S303, because urgent call need be routed to suitable PSAP according to the positional information of UE, E-CSCF sends the position enquiring request to LRF, the position of inquiry UE, and require LRF according to the suitable PSAP of the location assignment of UE.After LRF receives the position enquiring request of E-CSCF, require GMLC that the positional information of UE is provided.
S304, GMLC is to the MME address of HSS inquiry for the UE service, and HSS returns current MME address for the UE service.
After S305, GMLC obtained the MME address for the UE service, GMLC sent position requests to MME, required to return the stationkeeping ability data of UE, with the stationkeeping ability of acquisition UE, such as location algorithm that UE supported etc.MME is given to E-SMLC with request.
S306, if there are not the stationkeeping ability data of UE on the E-SMLC, perhaps the UE data on the E-SMLC are marked as expiredly, need execution in step: promptly E-SMLC is through the stationkeeping ability of MME to eNodeB inquiry UE.Behind the stationkeeping ability that has obtained UE, E-SMLC is kept at this locality with it, or upgrades local data of being preserved.
S307, E-SMLC sees through MME returns stationkeeping ability from UE to GMLC.
After S308, GMLC had obtained the stationkeeping ability of UE, according to the stationkeeping ability of UE, suitable algorithm was adopted in decision, initiates the position enquiring request to E-SMLC.This position enquiring request is given to E-SMLC through MME.
S309 is after E-SMLC receives position enquiring, to the positional information of E-SMLC inquiry and acquisition UE.
In this step, if the locate mode that is based on network that the LCS positioning service is adopted, then E-SMLC is to the measurement report of RAN request UE, and obtains the positional information of UE through the calculating to measurement report; If the locate mode that is based on UE (like UE the GPS module is arranged, can position oneself) that the LCS positioning service is adopted, then E-SMLC sends the position enquiring request to UE, directly obtains positional information from UE; If what the LCS positioning service was adopted is the auxiliary locate mode of UE, then E-SMLC initiates the position enquiring request to UE and RAN, obtains the necessary parameter data from UE, and obtains measurement report from RAN, according to the positional information of these data computation UE.
S310, obtain the positional information of UE at E-SMLC after, the positional information of UE is sent to GMLC through the position enquiring response.This position enquiring response is transmitted to GMLC through MME.
Through the position enquiring process of step 308～step 310, GMLC has obtained the positional information of UE.
S311, GMLC offers LRF with positional information, and LRF is to E-CSCF home position inquiry response, so that E-CSCF obtains the positional information of UE and according to the address of the PSAP that positional information determined of UE etc.
Step 311:E-CSCF continues follow-up urgent call processing procedure after having obtained the position of UE, suitable PSAP address, in the middle of UE and PSAP, sets up the emergent session link, carries out the control of follow-up urgent call.
Visible from the flow process that existing realization shown in Figure 3 is called out; The IMS operation layer goes for location information of terminals; Need complete positioning service such as the support of LCS; Promptly require comprehensive support of base station (RNC/NodeB/eNodeB), mobile management network element (SGSN/MME), location-server (SMLC/E-SMLC) etc., some locate mode also requires the support at terminal.And for some IMS was professional, it was to the demand of the position at terminal, only in the rank of subdistrict position.The subdistrict position at terminal under the normal condition, is present in the Mobility Management Entity of Access Network, is among the MME in SAE, yet utilizes LCS mechanism to obtain the location information of cell at terminal, needs to start long positioning flow, has increased time delay.In addition, not all network is all disposed LCS, and in this case, the IMS operation layer can't be verified the subdistrict position that the terminal provides.
Summary of the invention
The technical problem that the present invention will solve provides a kind of method, system, mobile management network element and location-based service network element that obtains terminal positional information, so that the IMS network element is at the location information of cell that does not have can obtain under the situation of navigation system the terminal.
For solving above technical problem, the invention provides a kind of method of obtaining terminal positional information, this method comprises:
IP Multimedia System (IMS) network element is to the location information of cell of location-based service network element inquiry terminal (UE);
Said location-based service network element is to the location information of cell of mobile management network element inquiry UE, and said mobile management network element returns the location information of cell of UE to said location-based service network element;
Said location-based service network element returns to said IMS network element with the location information of cell of said UE.
For solving above technical problem, the present invention also provides a kind of terminal positional information method of obtaining, and this method comprises:
Mobile management network element provides the location information of cell of UE initiatively or according to the inquiry of location-based service network element to said location-based service network element;
Said location-based service network element provides the location information of cell of said UE initiatively or according to the inquiry of IMS network element to the IMS network element.
Further; The location information of cell of said UE is that subdistrict position that wireless base system is measured said UE changes the back and initiatively reports said mobile management network element, or reports said mobile management network element according to the inquiry of said mobile management network element or subscription.
Further; Said location-based service network element is Gateway Mobile Location Center (GMLC); Or; Position requests function (LRF) and Gateway Mobile Location Center (GMLC); Wherein, Said LRF and said IMS network element are mutual, and said GMLC and said mobile management network element are mutual, and said LRF and said GMLC send query requests and inquiry response through interface.
Further, said GMLC sends the LCS locating query request of location positioning agreement (LPP) or subdistrict position query requests that said mobile management network element can the be resolved subdistrict position with inquiry terminal to said mobile management network element.
Further, said IMS network element is Proxy Call Session Control Function (P-CSCF), emergency call session controlled function (E-CSCF) or service call conversation control function (S-CSCF); Said mobile management network element is GPRS serving GPRS support node (SGSN) or Mobility Management Entity (MME).
For solving above technical problem, the present invention also provides a kind of system that obtains terminal positional information, and said system comprises:
Mobile management network element is used for initiatively reporting or according to the location information of cell of query requests to location-based service reported by network elements terminal (UE);
Said location-based service network element is used to receive the location information of cell of the said UE that said mobile management network element provides, and initiatively reports or according to the location information of cell of query requests to the said UE of IMS reported by network elements.
Said IMS network element is used to receive the location information of cell of the said UE that said location-based service network element provides.
Further, the location information of cell of said UE is that subdistrict position that wireless base system is measured said terminal changes the back and initiatively reports said mobile management network element, or report according to the inquiry of said mobile management network element or subscription.
Further; Said location-based service network element is Gateway Mobile Location Center (GMLC); Or; Position requests function (LRF) and Gateway Mobile Location Center (GMLC); Wherein, Said LRF and said IMS network element are mutual, and said GMLC and said mobile management network element are mutual, and said LRF and said GMLC send query requests and inquiry response through interface.
Further, said GMLC sends the LCS locating query request of location positioning agreement (LPP) or subdistrict position query requests that said mobile management network element can the be resolved subdistrict position with inquiry terminal to said mobile management network element.
Further, said IMS network element is Proxy Call Session Control Function (P-CSCF), emergency call session controlled function (E-CSCF) or service call conversation control function (S-CSCF); Said mobile management network element is GPRS serving GPRS support node (SGSN) or Mobility Management Entity (MME).
For solving above technical problem, the present invention also provides a kind of mobile management network element, and said mobile management network element is used for providing to the location-based service network element location information of cell of terminal (UE), comprising:
After the subdistrict position of said UE changed, active was to the location information of cell of the said UE of said location-based service reported by network elements; Or,
According to the query requests of said location-based service network element, report the location information of cell of said UE to said location-based service network element.
For solving above technical problem, the present invention also provides a kind of location-based service network element, and said location-based service network element is used for providing to the IMS network element location information of cell of terminal (UE), comprising:
After the subdistrict position of said UE changed, active was to the location information of cell of the said UE of said IMS reported by network elements; Or,
According to the query requests of said IMS network element, report the location information of cell of said UE to said IMS network element.
Among the present invention, the IMS network element obtains the location information of cell at terminal through the location-based service network element from mobile management network element, thereby makes the IMS network element at the location information of cell that does not have can obtain under the situation of navigation system the terminal.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.
Fig. 1 is in the prior art, and UE is linked into the Organization Chart of IMS system through the SAE Access Network;
Fig. 2 is prior art is used the LCS location technology in SAE and IMS a Organization Chart;
Fig. 3 is in the prior art IMS urgent call, and E-CSCF obtains the schematic flow sheet of the subdistrict position at terminal through the LCS location technology;
Fig. 4 is according to embodiments of the invention one, and P-CSCF obtains the Organization Chart of subdistrict position from Access Network;
Fig. 5 is according to embodiments of the invention one, and P-CSCF obtains the schematic flow sheet of subdistrict position from access network;
Fig. 6 is according to embodiments of the invention two, and P-CSCF obtains the Organization Chart of subdistrict position from Access Network;
Fig. 7 is according to embodiments of the invention two, and P-CSCF obtains the schematic flow sheet of subdistrict position from Access Network;
Fig. 8 is according to embodiments of the invention three, and Access Network initiatively changes the schematic flow sheet that sends to P-CSCF with the subdistrict position of UE;
Fig. 9 is the sketch map that the present invention obtains the terminal positional information method.
Embodiment
The main thought that the present invention obtains the method and system of terminal positional information is that the IMS network element obtains the location information of cell at terminal through the location-based service network element from mobile management network element, thereby makes the IMS network element at the location information of cell that does not have can obtain under the situation of navigation system the terminal.
As shown in Figure 9, the present invention obtains the terminal positional information method, and this method comprises:
Among the present invention; The location information of cell of said UE is that subdistrict position that wireless base system is measured said UE changes the back and initiatively reports said mobile management network element, or reports said mobile management network element according to the inquiry of said mobile management network element or subscription.
Location-based service network element among the present invention can be Gateway Mobile Location Center (GMLC); Or; The person is position requests function (LRF) and Gateway Mobile Location Center (GMLC); Wherein, Said LRF and said IMS network element are mutual; Said GMLC and said mobile management network element are mutual, and said LRF and said GMLC send query requests and inquiry response through interface.
Said GMLC sends the LCS locating query request of location positioning agreement (LPP) or subdistrict position query requests that said mobile management network element can the be resolved subdistrict position with inquiry terminal to said mobile management network element.
According to various network framework and business realizing, said IMS network element can be Proxy Call Session Control Function (P-CSCF), emergency call session controlled function (E-CSCF) or service call conversation control function (S-CSCF); Said mobile management network element can be GPRS serving GPRS support node (SGSN) or Mobility Management Entity (MME).
Hereinafter will with reference to the accompanying drawings and combine embodiment to describe the present invention in detail.Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.
Embodiment one
Fig. 4 is for obtaining the configuration diagram of location information of cell according to the P-CSCF of the embodiment of the invention one through Access Layer, in this Organization Chart:
P-CSCF (Proxy Call Session Control Function, Proxy Call Session Control Function) has realized the interface function between E-CSCF and the LRF, in order to realize the function of P-CSCF from LRF inquiring position information.Be internal interface between LRF and the GMLC, be prior art.GMLC in this framework is in order to providing location information of cell to LRF, and obtains location information of cell from MME.
Based on the Organization Chart of Fig. 4, P-CSCF obtains the schematic flow sheet of the location information of cell of UE from Access Layer, as shown in Figure 5, comprises the steps:
S501, P-CSCF receives conversation request;
For the location information of cell of verifying that UE provides, perhaps UE possibly be the relevant business in a position location information of cell, this session are provided in conversation request, and the P-CSCF decision is from the location information of cell of LRF inquiry UE.
S502, P-CSCF initiates the position enquiring request to LRF, the location information of cell of inquiry UE, LRF is transmitted to GMLC with the position enquiring request;
S503; GMLC is to MME (Mobility Management Entity; Mobile Management Entity) sends the position enquiring request; If preserve the location information of cell of UE on the MME; Then change and carry out S505; Otherwise execution in step S504, behind the location information of cell of RAN querying node UE, execution in step S505 again;
In the practical application scene, LRF possibly be integrated on the GMLC as a logic function independently, and what then LRF carried out to GMLC is inner query logic.
In this step, GMLC can have dual mode:
A) GMLC is to the LCS locating query request of a standard of MME transmission, and promptly Lpp (Location Position Protocol, location positioning agreement) asks, the subdistrict position of requesting query UE;
B) GMLC sends a direct subdistrict position query requests to MME, and this query requests is not a Lpp request, and MME can resolve and should ask;
In this step, if:
What A) GMLC sent to MME is the LCS locating query request of a standard; It is the Lpp request; What then MME need discern that institute in the Lpp request hopes to inquire about is the location information of cell of UE; Thereby the location information of cell of the UE that returns on MME to be preserved to GMLC, or to the location information of cell of RAN querying node/subscription UE.
What B) GMLC sent to MME is a direct subdistrict position query requests; It promptly not a Lpp request; Then MME identification should request, and the location information of cell of the UE that returns on MME to be preserved to GMLC, or to the location information of cell of RAN querying node/subscription UE.
S504, MME is to the location information of cell of RAN querying node/subscription UE;
If in step S503, MME thinks that this locality does not have the up-to-date location information of cell of UE, and then MME is to the location information of cell of RAN querying node UE.MME can be provided with a timer in the subdistrict position that obtains up-to-date UE, after timer exceeds the time limit, can think that the subdistrict position of current UE has not been up-to-date, thereby need be to the subdistrict position of RAN querying node UE.
If GMLC is in the position enquiring request that UE sends; Require MME that the location information of cell of UE periodically is provided; Then MME subscribes to the location information of cell of UE to the RAN node; Then when the RAN node detection when the location information of cell of UE changes; Location information of cell to MME notice UE; MME then further sends the position updating record to GMLC, the up-to-date location information of cell of notice UE.
S505, MME returns the location information of cell of UE to GMLC, and GMLC returns to LRF with the location information of cell of UE;
S506, LRF carry the current area positional information of UE to P-CSCF home position inquiry response;
After S507, P-CSCF have obtained the location information of cell of UE, carry out follow-up processing, continue session and handle.Such as: substitute the entrained location information of cell that comes up of UE, carry out different strategies etc. according to location information of cell.
Generally, when UE initiated periodic location update request, services request, base station handoff request, network handoff request, the RAN node can be included in the subdistrict position of UE in the request message, thereby MME can obtain the current up-to-date subdistrict position of UE.As UE during at Idle state, the location information of cell of the UE that MME obtained, RAN node report when normally UE initiates periodic location update, when moving out tracking zone list (TA List) back UE and initiating position updating request.When Idle state, UE is when tracking zone list (TA List) intra sub-district, and MME does not also know the new subdistrict position of current UE.
When UE at connected state, when initiating services request (registering caused services request such as carrying out IMS), the RAN node can carry up-to-date subdistrict position and give MME, and thereafter, when UE moved in TAList, MME can not obtain the up-to-date subdistrict position of UE.When UE wants to initiate services request at one's leisure, at first to switch to connected state from Idle state.
The subdistrict position of the UE that self is stored for fear of MME is not up-to-date, and MME can perhaps require the RAN node after the subdistrict position of UE changes, to report to MME immediately at every turn to the up-to-date subdistrict position of RAN querying node UE.But MME inquires about the RAN node at every turn, perhaps requires the RAN node after the subdistrict position of UE changes, to report immediately, sometimes is unnecessary.A kind of improved method is that MME is provided with a timer, and in the timer time scope, MME uses the subdistrict position of the UE that self preserves, and after exceeding this timer, MME can search the subdistrict position of UE to the RAN node.
Embodiment two
Fig. 6 is for obtaining the configuration diagram of location information of cell according to the P-CSCF of the embodiment of the invention two through Access Layer, in this Organization Chart:
P-CSCF has served as LCS client (LCS Client), is connected with GMLC through the Le interface, to realize from the cell information of GMLC inquiry UE.GMLC obtains location information of cell from MME.
Based on Organization Chart shown in Figure 6, P-CSCF obtain from Access Layer UE location information of cell schematic flow sheet as shown in Figure 7, comprise the steps:
S701, P-CSCF receives conversation request, needs the location information of cell of inquiry UE;
S702, P-CSCF initiates the position enquiring request to GMLC, the location information of cell of inquiry UE;
S703; In response to step S703; GMLC sends the position enquiring request to MME; If preserve the location information of cell of UE on the MME; MME execution in step S705 returns the location information of cell of UE to GMLC, otherwise MME execution in step S704; Behind the location information of cell of RAN querying node UE, execution in step S705 again;
In like manner, the GMLC in this step can adopt the inquiry mode identical with embodiment one, and correspondingly, MME adopts identical processing mode.
S704, MME is to the location information of cell of RAN querying node/subscription UE;
If in step S703, MME thinks that this locality does not have the up-to-date location information of cell of UE, and then MME is to the location information of cell of RAN querying node UE.If GMLC is in the position enquiring request that UE sends; Require MME that the location information of cell of UE periodically is provided; Then MME subscribes to the location information of cell of UE to the RAN node; Then when the RAN node detection when the location information of cell of UE changes; Location information of cell to MME notice UE; MME then further sends the position updating record to GMLC, the up-to-date location information of cell of notice UE.
S705, MME return the location information of cell of UE to GMLC;
S706, GMLC carry the current area positional information of UE to P-CSCF home position inquiry response;
After S707, P-CSCF have obtained the location information of cell of UE, carry out follow-up processing, continue session and handle.Such as: substitute the entrained location information of cell that comes up of UE, carry out different strategies etc. according to location information of cell.
Embodiment three
In the present embodiment, on the basis of embodiment one, two,, can require the RAN node when the subdistrict position of UE changes, report the subdistrict position of UE if P-CSCF always need know the current up-to-date subdistrict position of UE.
After the subdistrict position that Fig. 8 has described UE changed, the RAN node reported the flow chart of the subdistrict position of UE.
S801, the RAN node detection changes to the subdistrict position of UE;
S802, the RAN node is to the location information of cell of MME report UE;
S803, MME is to the location information of cell of GMLC report UE;
S804, GMLC is to the location information of cell of P-CSCF report UE.
Embodiment four
Embodiment one, two, the flow process described in three can be applied to GERAN, UTRAN inserts situation, and accordingly, SGSN replaces MME, and GGSN replaces PGW, and RNC/NodeB replaces eNodeB, and flow process stands good.
In above-mentioned some embodiment, the network element of IMS layer inquiry UE subdistrict position is P-CSCF, and this normally is positioned at the visit net because of P-CSCF, and under roaming condition, P-CSCF can search out the location-server that is positioned at the visit net easily.The IMS network element of inquiry UE subdistrict position also can be E-CSCF, because the processing of urgent call must be on visit ground, thereby E-CSCF is arranged in the visit net, also possesses the similar characteristic with P-CSCF.Under non-roaming situation, S-CSCF (service call conversation control function, Serving Call Session Control Function) also can use the method for the foregoing description to obtain the location information of cell of UE.
In addition, the GMLC described in above-mentioned some embodiment also can be a network element entity of realizing identity function, and this network element entity and MME communication be with the subdistrict position of inquiry UE, and simulates the external interface part of GMLC, and the location information of cell of UE is provided to the upper strata.
In order to realize above method, the present invention also provides a kind of system that obtains terminal positional information, and said system comprises:
Mobile management network element is used for initiatively reporting or according to the location information of cell of query requests to location-based service reported by network elements terminal (UE);
Said location-based service network element is used to receive the location information of cell of the said UE that said mobile management network element provides, and initiatively reports or according to the location information of cell of query requests to the said UE of IMS reported by network elements;
Said IMS network element is used to receive the location information of cell of the said UE that said location-based service network element provides.
The location information of cell of the said UE of the present invention is that subdistrict position that wireless base system is measured said terminal changes the back and initiatively reports said mobile management network element, or report according to the inquiry of said mobile management network element or subscription.
Said location-based service network element can be Gateway Mobile Location Center (GMLC); Or; Position requests function (LRF) and Gateway Mobile Location Center (GMLC); Wherein, Said LRF and said IMS network element are mutual; Said GMLC and said mobile management network element are mutual, and said LRF and said GMLC send query requests and inquiry response through interface.
Said GMLC sends the LCS locating query request of location positioning agreement (LPP) or subdistrict position query requests that said mobile management network element can the be resolved subdistrict position with inquiry terminal to said mobile management network element.
According to various network framework and business realizing, said IMS network element is Proxy Call Session Control Function (P-CSCF), emergency call session controlled function (E-CSCF) or service call conversation control function (S-CSCF); Said mobile management network element is GPRS serving GPRS support node (SGSN) or Mobility Management Entity (MME).
In addition, the present invention also provides a kind of mobile management network element, and said mobile management network element is used for providing to the location-based service network element location information of cell of terminal (UE), comprising:
After the subdistrict position of said UE changed, active was to the location information of cell of the said UE of said location-based service reported by network elements; Or,
According to the query requests of said location-based service network element, report the location information of cell of said UE to said location-based service network element.
Wherein, said location-based service network element is Gateway Mobile Location Center (GMLC), or, position requests function (LRF) and Gateway Mobile Location Center (GMLC); Said mobile management network element is GPRS serving GPRS support node (SGSN) or Mobility Management Entity (MME).
The present invention also provides a kind of location-based service network element, and said location-based service network element is used for providing to the IMS network element location information of cell of terminal (UE), comprising:
After the subdistrict position of said UE changed, active was to the location information of cell of the said UE of said IMS reported by network elements; Or,
According to the query requests of said IMS network element, report the location information of cell of said UE to said IMS network element.
Said location-based service network element is Gateway Mobile Location Center (GMLC), or, position requests function (LRF) and Gateway Mobile Location Center (GMLC); Said IMS network element is Proxy Call Session Control Function (P-CSCF), emergency call session controlled function (E-CSCF) or service call conversation control function (S-CSCF).
Obviously; Those skilled in the art should be understood that; Above-mentioned each module of the present invention or each step can realize with the general calculation device; They can concentrate on the single calculation element; Perhaps be distributed on the network that a plurality of calculation element forms; Alternatively; They can be realized with the executable program code of calculation element; Thereby; They can be stored in the storage device and carry out by calculation element; And in some cases; Can carry out step shown or that describe with the order that is different from here; Perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (17)
1. a method of obtaining terminal positional information is characterized in that, this method comprises:
IP Multimedia System (IMS) network element is to the location information of cell of location-based service network element inquiry terminal (UE);
Said location-based service network element is to the location information of cell of mobile management network element inquiry UE, and said mobile management network element returns the location information of cell of UE to said location-based service network element;
Said location-based service network element returns to said IMS network element with the location information of cell of said UE.
2. the method for claim 1; It is characterized in that: the location information of cell of said UE is that subdistrict position that wireless base system is measured said UE changes the back and initiatively reports said mobile management network element, or reports said mobile management network element according to the inquiry of said mobile management network element or subscription.
3. the method for claim 1 is characterized in that, said location-based service network element is Gateway Mobile Location Center (GMLC), or, position requests function (LRF) and Gateway Mobile Location Center (GMLC); Said IMS network element is Proxy Call Session Control Function (P-CSCF), emergency call session controlled function (E-CSCF) or service call conversation control function (S-CSCF); Said mobile management network element is GPRS serving GPRS support node (SGSN) or Mobility Management Entity (MME).
4. one kind is obtained the terminal positional information method, it is characterized in that, this method comprises:
Mobile management network element provides the location information of cell of UE initiatively or according to the inquiry of location-based service network element to said location-based service network element;
Said location-based service network element provides the location information of cell of said UE initiatively or according to the inquiry of IMS network element to the IMS network element.
5. method as claimed in claim 4; It is characterized in that: the location information of cell of said UE is that subdistrict position that wireless base system is measured said UE changes the back and initiatively reports said mobile management network element, or reports said mobile management network element according to the inquiry of said mobile management network element or subscription.
6. method as claimed in claim 4; It is characterized in that; Said location-based service network element is Gateway Mobile Location Center (GMLC); Or; Position requests function (LRF) and Gateway Mobile Location Center (GMLC), wherein, said LRF and said IMS network element are mutual; Said GMLC and said mobile management network element are mutual, and said LRF and said GMLC send query requests and inquiry response through interface.
7. method as claimed in claim 6 is characterized in that: said GMLC sends the LCS locating query request of location positioning agreement (LPP) or subdistrict position query requests that said mobile management network element can the be resolved subdistrict position with inquiry terminal to said mobile management network element.
8. method as claimed in claim 4 is characterized in that: said IMS network element is Proxy Call Session Control Function (P-CSCF), emergency call session controlled function (E-CSCF) or service call conversation control function (S-CSCF); Said mobile management network element is GPRS serving GPRS support node (SGSN) or Mobility Management Entity (MME).
9. a system that obtains terminal positional information is characterized in that, said system comprises:
Mobile management network element is used for initiatively reporting or according to the location information of cell of query requests to location-based service reported by network elements terminal (UE);
Said location-based service network element is used to receive the location information of cell of the said UE that said mobile management network element provides, and initiatively reports or according to the location information of cell of query requests to the said UE of IMS reported by network elements;
Said IMS network element is used to receive the location information of cell of the said UE that said location-based service network element provides.
10. system as claimed in claim 9; It is characterized in that: the location information of cell of said UE is that subdistrict position that wireless base system is measured said terminal changes the back and initiatively reports said mobile management network element, or report according to the inquiry of said mobile management network element or subscription.
11. system as claimed in claim 9; It is characterized in that; Said location-based service network element is Gateway Mobile Location Center (GMLC); Or; Position requests function (LRF) and Gateway Mobile Location Center (GMLC), wherein, said LRF and said IMS network element are mutual; Said GMLC and said mobile management network element are mutual, and said LRF and said GMLC send query requests and inquiry response through interface.
12. system as claimed in claim 11 is characterized in that: said GMLC sends the LCS locating query request of location positioning agreement (LPP) or subdistrict position query requests that said mobile management network element can the be resolved subdistrict position with inquiry terminal to said mobile management network element.
13. system as claimed in claim 9 is characterized in that: said IMS network element is Proxy Call Session Control Function (P-CSCF), emergency call session controlled function (E-CSCF) or service call conversation control function (S-CSCF); Said mobile management network element is GPRS serving GPRS support node (SGSN) or Mobility Management Entity (MME).
14. a mobile management network element is characterized in that: said mobile management network element is used for providing to the location-based service network element location information of cell of terminal (UE), comprising:
After the subdistrict position of said UE changed, active was to the location information of cell of the said UE of said location-based service reported by network elements; Or,
According to the query requests of said location-based service network element, report the location information of cell of said UE to said location-based service network element.
15. mobile management network element as claimed in claim 14 is characterized in that: said location-based service network element is Gateway Mobile Location Center (GMLC), or, position requests function (LRF) and Gateway Mobile Location Center (GMLC); Said mobile management network element is GPRS serving GPRS support node (SGSN) or Mobility Management Entity (MME).
16. a location-based service network element is characterized in that, said location-based service network element is used for providing to the IMS network element location information of cell of terminal (UE), comprising:
After the subdistrict position of said UE changed, active was to the location information of cell of the said UE of said IMS reported by network elements; Or,
According to the query requests of said IMS network element, report the location information of cell of said UE to said IMS network element.
17. location-based service network element as claimed in claim 16 is characterized in that: said location-based service network element is Gateway Mobile Location Center (GMLC), or, position requests function (LRF) and Gateway Mobile Location Center (GMLC); Said IMS network element is Proxy Call Session Control Function (P-CSCF), emergency call session controlled function (E-CSCF) or service call conversation control function (S-CSCF).
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