CN102348280B - Obtain method, system and the equipment of terminal positional information - Google Patents
Obtain method, system and the equipment of terminal positional information Download PDFInfo
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Abstract
The present invention relates to a kind of method, system and equipment that obtains terminal positional information, the method comprises: mobile management network element initiatively or the location information of cell of UE is provided to described location-based service network element according to the inquiry of location-based service network element; Described location-based service network element initiatively or the location information of cell of described UE is provided to IMS network element according to the inquiry of IMS network element. The present invention can make IMS network element in the situation that there is no navigation system, can obtain the location information of cell of terminal.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of method of obtaining terminal positional information,System, equipment (comprising mobile management network element and location-based service network element).
Background technology
IP Multimedia System (IMS, IPMultimediaSubsystem) is New Generation of Communication networkCore, its distinguishing feature is to have adopted Session initiation Protocol (SIP, SessionInitiationProtocol)System, communication is irrelevant with access, and possesses media service control function and separate with bearing capacity, exhalesCry with session and separate, application separates with service, business and network detach, and mobile network and internet industryBusiness fusion waits several functions.
There is the user terminal (UserEquipment, UE) of IMS ability, can be by multiple accessNetwork insertion is in IMS IP multimedia subsystem, IMS, as system Long Term Evolution (SAE, SystemArchitectureEvolution) network, WLAN (WirelessLAN, WLAN) etc.;
In IMS business, a lot of business position current with UE is relevant, such as: family's mobile fixed-lineMiddle charging is the public affairs that are equivalent to police office of distributing for UE in location difference, IMS urgent callSecure answer point (PublicSecurityAnswerPoint, PSAP) is also to have according to position is different altogetherDifference.
In GPRS (GPRS, GeneralPacketRadioService) network, systemOn Long Term Evolution (SAE, SystemArchitectureEvolution) network, it is IMS multimedia subsystemSystem provides a kind of subsystem of the UE of inquiry positional information, positioning service system (LocationService,LCS), can connect IMS operation layer and GPRS, SAE Access Layer, with the concrete position of positioning UEPut and report to IMS operation layer.
Fig. 1 is the Organization Chart that in prior art, UE is linked into IMS IP multimedia subsystem, IMS by SAE, figure2 are linked into IMS IP multimedia subsystem, IMS for describing UE in detail by SAE, and realize IMS urgent callOrganization Chart with terminal positioning. As shown in Figure 1, 2, comprising: SAE network portion, policy and charging control(PCC, PolicyChargingControl) partly, location-based service (LCS, LocationService)Part and IMS urgency traffic part.
Wherein, the network element of SAE network portion, in order to bearer management and the mobile management of bottom to be provided, wrapsDraw together: the wireless base station (eNodeB) of enhancing, Mobility Management Entity (MME, MobilityManagementEntiy) and user face data route processing be SAE gateway (SAEGW). Under eNodeB isThe control appliance of the main interface-free resources of the wireless access network of a generation, can provide higher up-downgoing speed,Lower transmission delay and more reliably wireless transmission. MME is in charge of and stores the context of UE(such as, UE/ ID, mobility management states, user security parameters etc.), for user assignment facesIn time, identifies, and in the time that UE quarters at this tracing area or this network, is responsible for this user to carry out authentication.SAE gateway (user plane functions entity) can be divided into gateway (S-GW, ServingGW) and divideGroup data network gateway (P-GW, PDNGW) two kinds. S-GW is SAE system and 3GPP systemBetween mobile anchor point and and evolution UTRAN (E-UTRAN) between mobile anchor point. P-GW isThe borde gateway of SAE and PDN, is responsible for the access of PDN, forwarding data etc. between SAE and PDNFunction.
The network element of LCS part comprises Serving Mobile Location Center (E-SMLC, the Enhanced of enhancingAnd Gateway Mobile Location Center (GMLC, GatewayMobileLocationCenter) SMLC).The physical bit that E-SMLC is responsible for accepting the measurement report of UE, issues positional parameter, calculating UE to UEPut etc. 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 control and to process the session of urgent call. Wherein, IMS is urgentCalling out part comprises: home subscriber server (HSS, HomeSubscriberServer), urgent callConversation control function (E-CSCF, EmergencyCallSessionControlFunction), position pleaseAsk function (LRF, LocationRequireFunction) and PSAP. The signing number of HSS leading subscriberAccording to, be positioned at home network. E-CSCF controls the core network element of emergent session process, is positioned at visit net. PSAPIn fact be exactly police station. LRF is a logical functional entity, for E-CSCF, PSAP etc. provide UEPositional information, LRF can independently dispose, and also may be included in other location server, as integratedIn GMLC.
IMS terminal is in making a call, and in session initiation message, the current place of carried terminal connectsThe location information of cell networking, i.e. the current CellID of carried terminal in INVITE, so that IMSOperation layer triggers the business relevant with position. Such as: in the charging of position sensing, the meeting of IMS operation layerAccording to the difference of the current position of terminal, adopt different charging policy; Or, promptly exhale at IMSIn crying, IMS operation layer is selected urgent call processing center according to the band of position of terminal.
But IMS terminal for many reasons, may provide wrong subdistrict position, thereby IMSApplication layer can not thoroughly believe the subdistrict position that IMS terminal provides. A kind of typical situation is in positionIn responsive charging: certain IMS terminal, in the A of community, is enjoyed lower speech rate, when moving to communityWhen A is outer, the community that IMS terminal is still used community A to report as it in the time making a call, deception netNetwork is to enjoy lower speech rate.
Thereby, when IMS operation layer is in the time receiving the session request that IMS terminal is initiated, essential having the abilityThe subdistrict position that checking IMS terminal provides is correct.
Current, IMS operation layer can inquire by location-based service (LocationService, LCS)The position at the current place of terminal. Taking IMS urgent call as example, Fig. 3 has described and has processed urgent callCheng Zhong, IMS network element is accessed network and is retrieved as the existing urgent call that realizes from SAE by LCS navigation systemFlow chart, as shown in Figure 3, mainly comprise the steps:
S301, UE is attached to SAE network, is assigned with IP address, and network is set up default bearing for it.Meanwhile, the address of MME is registered in HSS.
In this step, conventionally in the time that UE is initially attached to SAE network, UE need to provide that UE's is wirelessAccess capability (RATCapability), core net ability (CoreNetworkCapability). At coreIn heart net ability, include the LCS stationkeeping ability of UE, the LCS stationkeeping ability of UE specifically comprises: UEWhether support LCS location algorithm that LCS location, UE support etc.
In addition, it should be noted that, in the time that UE initially adheres to, if there is effective IMSI in UE,MME, by obtain the user data of UE from the HSS of home network, wherein may comprise determining of UECapability is described. But, the situation that does not have effective IMSI, nothing to block for UE, MME can notObtain the user data of UE from HSS. And, the ability configuring in the user data of UE, Ke NengyouThereby change and make stationkeeping ability in user data and the actual location energy of UE equipment in UE equipmentPower is inconsistent. Therefore, MME can not expect to obtain the location of UE accurately from the user data of UEAbility, and the stationkeeping ability that should report with UE is as the criterion.
S302, UE initiates urgent call, and urgent call is routed to E-CSCF.
S303, because urgent call need to be routed to suitable PSAP according to the positional information of UE,E-CSCF sends position enquiring request to LRF, the position of inquiry UE, and require LRF according to UEPosition distribute suitable PSAP. LRF receives after the position enquiring request of E-CSCF, requires GMLCThe positional information of UE is provided.
S304, the MME address that GMLC is UE service to HSS inquiry, it is UE that HSS returns currentThe MME address of service.
S305, GMLC obtains behind the MME address for UE service, and GMLC sends position to MMEPut request, require to return the stationkeeping ability data of UE, to obtain the stationkeeping ability of UE, such as UE instituteThe location algorithm of supporting etc. E-SMLC is given in request by MME.
S306, if there is no the stationkeeping ability data of UE on E-SMLC, or UE on E-SMLCData are marked as expired, need execution step: E-SMLC looks into eNodeB by MMEAsk the stationkeeping ability of UE. Obtaining after the stationkeeping ability of UE, E-SMLC is kept at this locality,Or the local data of preserving of renewal.
S307, E-SMLC returns to the stationkeeping ability of UE to GMLC through MME.
S308, GMLC has obtained after the stationkeeping ability of UE, according to the stationkeeping ability of UE, determines to adoptWith suitable algorithm, to E-SMLC launch position inquiry request. This position enquiring request is through MMEBe given to E-SMLC.
S309, E-SMLC receives after position enquiring, inquires about and obtain the position letter of UE to E-SMLCBreath.
In this step, if that LCS positioning service employing is network locate mode, E-SMLCTo the measurement report of RAN request UE, and by the calculating of measurement report being obtained to the position letter of UEBreath; Locate mode based on UE that what if LCS positioning service adopted is (as UE has GPS module,Can position oneself), E-SMLC sends position enquiring request to UE, directly obtains position from UEPut information; If what LCS positioning service adopted is the auxiliary locate mode of UE, E-SMLC is to UEWith RAN launch position inquiry request, obtain necessary supplemental characteristic from UE, and obtain survey from RANAmount report, according to the positional information of these data calculating UE.
S310, obtains at E-SMLC after the positional information of UE, and the positional information of UE is passed through to positionInquiry response sends to GMLC. This position enquiring response is transmitted to GMLC through MME.
By the position enquiring process of step 308～step 310, GMLC has obtained the positional information of UE.
S311, positional information is offered LRF by GMLC, and LRF rings to the inquiry of E-CSCF home positionShould, so that E-CSCF obtains the positional information of UE and the PSAP determining according to the positional information of UEAddress etc.
Step 311:E-CSCF has obtained behind the position of UE, suitable PSAP address, continues follow-upUrgent call processing procedure is set up emergent session link in the middle of UE and PSAP, carries out follow-uply promptly to exhaleThe control of crying.
The flow process of calling out from the existing realization shown in Fig. 3, IMS operation layer goes for the position of terminalPut information, need complete positioning service as the support of LCS, require base station(RNC/NodeB/eNodeB), mobile management network element (SGSN/MME), location-serverEtc. (SMLC/E-SMLC) comprehensive support, some locate mode also requires the support of terminal. And forSome IMS business, the demand of its position to terminal, only in the rank of subdistrict position. TerminalSubdistrict position, under normal circumstances, is present in the Mobility Management Entity of Access Network, is MME in SAEIn, but utilize LCS mechanism to obtain the location information of cell of terminal, need to start long locationFlow process, has increased time delay. In addition, not all network is all disposed LCS, in this case,The subdistrict position that IMS operation layer cannot provide terminal is verified.
Summary of the invention
The technical problem to be solved in the present invention be to provide a kind of method of obtaining terminal positional information, system,Mobile management network element and location-based service network element, so that IMS network element energy in the situation that there is no navigation systemEnough obtain the location information of cell of terminal.
For solving above technical problem, the invention provides a kind of method of obtaining terminal positional information, shouldMethod comprises:
IP Multimedia System (IMS) network element is to the subdistrict position of location-based service network element inquiry terminal (UE)Information;
Described location-based service network element is to the location information of cell of mobile management network element inquiry UE, described in moveMobility management network element returns to the location information of cell of UE to described location-based service network element;
The location information of cell of described UE is returned to described IMS network element by described location-based service network element.
For solving above technical problem, the present invention also provides one to obtain terminal positional information method, the partyMethod comprises:
Mobile management network element initiatively or carry to described location-based service network element according to the inquiry of location-based service network elementFor the location information of cell of UE;
Described location-based service network element initiatively or provide described UE according to the inquiry of IMS network element to IMS network elementLocation information of cell.
Further, the location information of cell of described UE is that wireless base system is measured described UE communityAfter change in location, active reporting is given described mobile management network element, or according to described mobile management networkThe inquiry of unit or subscription report described mobile management network element.
Further, described location-based service network element is Gateway Mobile Location Center (GMLC), or, positionPut request function (LRF) and Gateway Mobile Location Center (GMLC), wherein, described LRF and instituteState IMS network element mutual, described GMLC and described mobile management network element are mutual, described LRF and instituteState GMLC and send inquiry request and inquiry response by interface.
Further, described GMLC sends position location protocol (LPP) to described mobile management network elementThe request of LCS locating query or the subdistrict position inquiry request that can resolve of described mobile management network element to look intoAsk the subdistrict position of terminal.
Further, described IMS network element is Proxy Call Session Control Function (P-CSCF), promptly exhalesBe conversation control function (E-CSCF) or service call conversation control function (S-CSCF); Described movementProperty managed 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 of obtaining terminal positional information,Described system comprises:
Mobile management network element, for active reporting or whole to location-based service reported by network elements according to inquiry requestThe location information of cell of end (UE);
Described location-based service network element, for receiving the little of described UE that described mobile management network element providesZone position information, and active reporting or according to inquiry request to UE community described in IMS reported by network elementsPositional information.
Described IMS network element, for receiving the subdistrict position of the described UE that described location-based service network element providesInformation.
Further, the location information of cell of described UE is that wireless base system is measured the little of described terminalAfter zone position variation, active reporting is given described mobile management network element, or according to described mobile managementThe inquiry of network element or subscription report.
Further, described location-based service network element is Gateway Mobile Location Center (GMLC), or, positionPut request function (LRF) and Gateway Mobile Location Center (GMLC), wherein, described LRF and instituteState IMS network element mutual, described GMLC and described mobile management network element are mutual, described LRF and instituteState GMLC and send inquiry request and inquiry response by interface.
Further, described GMLC sends position location protocol (LPP) to described mobile management network elementThe request of LCS locating query or the subdistrict position inquiry request that can resolve of described mobile management network element to look intoAsk the subdistrict position of terminal.
Further, described IMS network element is Proxy Call Session Control Function (P-CSCF), promptly exhalesBe conversation control function (E-CSCF) or service call conversation control function (S-CSCF); Described movementProperty managed 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, described movementProperty managed network element for providing the location information of cell of terminal (UE) to location-based service network element, comprising:
After the subdistrict position of described UE changes, initiatively to described in described location-based service reported by network elementsThe location information of cell of UE; Or,
According to the inquiry request of described location-based service network element, report described UE to described location-based service network elementLocation information of cell.
For solving above technical problem, the present invention also provides a kind of location-based service network element, described position clothesBusiness network element, for the location information of cell of terminal (UE) is provided to IMS network element, comprising:
After the subdistrict position of described UE changes, initiatively to UE described in described IMS reported by network elementsLocation information of cell; Or,
According to the inquiry request of described IMS network element, report the little position of described UE to described IMS network elementPut information.
In the present invention, IMS network element obtains the little of terminal by location-based service network element from mobile management network elementZone position information, thus make IMS network element in the situation that there is no navigation system, can obtain the community of terminalPositional information.
Brief description of the drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms of the applicationPoint, schematic description and description of the present invention is used for explaining the present invention, does not form of the present inventionImproper restriction.
Fig. 1 is in prior art, and UE is linked into the Organization Chart of IMS system by SAE Access Network;
Fig. 2 is the Organization Chart that prior art is applied LCS location technology in SAE and IMS;
Fig. 3 is in prior art IMS urgent call, and E-CSCF obtains terminal by LCS location technologyThe schematic flow sheet of subdistrict position;
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 flow process of subdistrict position from accessing networkSchematic diagram;
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 the flow process that P-CSCF obtains subdistrict position from Access Network is shownIntention;
Fig. 8 is according to embodiments of the invention three, and Access Network initiatively changes the subdistrict position of UE to sendGive the schematic flow sheet of P-CSCF;
Fig. 9 is the schematic diagram that the present invention obtains terminal positional information method.
Detailed description of the invention
The main thought that the present invention obtains the method and system of terminal positional information is that IMS network element passes through positionService network element obtains the location information of cell of terminal from mobile management network element, thereby IMS network element is not being hadThere is the location information of cell that can obtain terminal in the situation of navigation system.
As shown in Figure 9, the present invention obtains terminal positional information method, and the method comprises:
Step 901, mobile management network element initiatively or according to the inquiry of location-based service network element to described positionService network element provides the location information of cell of UE;
Step 902, described location-based service network element initiatively or carry to IMS network element according to the inquiry of IMS network elementFor the location information of cell of described UE.
In the present invention, the location information of cell of described UE is that wireless base system is measured described UE communityAfter change in location, active reporting is given described mobile management network element, or according to described mobile management networkThe inquiry of unit or subscription report described mobile management network element.
Location-based service network element in the present invention can be Gateway Mobile Location Center (GMLC), or, personPosition requests function (LRF) and Gateway Mobile Location Center (GMLC), wherein, described LRFMutual with described IMS network element, described GMLC and described mobile management network element are mutual, described LRFSend inquiry request and inquiry response with described GMLC by interface.
The LCS that described GMLC sends position location protocol (LPP) to described mobile management network element is fixedThe subdistrict position inquiry request that position inquiry request or described mobile management network element can be resolved is with inquiry terminalSubdistrict position.
According to the different network architectures and business realizing, described IMS network element can be agent call session controlFunction processed (P-CSCF), emergency call session control function (E-CSCF) or service call session controlFunction (S-CSCF); Described mobile management network element can be GPRS serving GPRS support node (SGSN)Or Mobility Management Entity (MME).
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments. It should be noted that,In the situation of not conflicting, the feature in embodiment and embodiment in the application can combine mutually.
Embodiment mono-
Fig. 4 obtains location information of cell according to the P-CSCF of the embodiment of the present invention one by Access LayerConfiguration diagram, in this Organization Chart:
P-CSCF (Proxy Call Session Control Function, ProxyCallSessionControlFunction) realizesInterface function between E-CSCF and LRF, in order to realize P-CSCF from LRF inquiring position informationFunction. Between LRF and GMLC, being internal interface, is prior art. GMLC in this frameworkIn order to provide location information of cell to LRF, and obtain location information of cell from MME.
Based on the Organization Chart of Fig. 4, the flow process that P-CSCF obtains the location information of cell of UE from Access Layer is shownIntention, as shown in Figure 5, comprises the steps:
S501, P-CSCF receives session request;
For the location information of cell of verifying that UE provides, or UE does not provide community in session requestPositional information, this session may be a business that position is relevant, P-CSCF determines from LRF inquiry UELocation information of cell.
S502, P-CSCF, to LRF launch position inquiry request, inquires about the location information of cell of UE,Position enquiring request is transmitted to GMLC by LRF;
S503, GMLC is to MME (Mobility Management Entity, MobileManagementEntity)Send position enquiring request, if preserve the location information of cell of UE on MME, turn and carry out S505,Otherwise execution step S504, after the location information of cell of RAN querying node UE, then performs stepS505；
In practical application scene, LRF, as a logic function independently, may be integrated in GMLCUpper, what LRF carried out to GMLC is inner query logic.
In this step, GMLC can have two kinds of modes:
A) GMLC sends the LCS locating query request of a standard, i.e. Lpp (Location to MMEPositionProtocol, position location protocol) request, the subdistrict position of requesting query UE;
B) GMLC sends a direct subdistrict position inquiry request to MME, and this inquiry request is notA Lpp request, MME can resolve this request;
In this step, if:
What A) GMLC sent to MME is the LCS locating query request of a standard, i.e. Lpp request,What MME need to identify desired inquiry in Lpp request is the location information of cell of UE, thereby toGMLC returns to the location information of cell of the UE preserving on MME, or to RAN querying node/Subscribe to the location information of cell of UE.
What B) GMLC sent to MME is a direct subdistrict position inquiry request, is not oneLpp request, MME identifies this request, and returns to GMLC the UE preserving on MMELocation information of cell, 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,MME is to the location information of cell of RAN querying node UE. MME can obtain up-to-date UESubdistrict position time, a timer is set, after timer exceeds the time limit, can think current UESubdistrict position be not up-to-date, thereby need to be to the subdistrict position of RAN querying node UE.
If in the position enquiring request that GMLC sends to UE, require MME that UE is periodically providedLocation information of cell, MME subscribes to the location information of cell of UE to RAN node, works as RANNode detects when the location information of cell of UE changes, to the subdistrict position letter of MME notice UEBreath, MME further sends position updating record to GMLC, the up-to-date little position of notice UEPut information.
S505, MME returns to the location information of cell of UE to GMLC, GMLC JiangUE communityPositional information returns to LRF;
S506, LRF, to P-CSCF home position inquiry response, carries position, the current area letter of UEBreath;
S507, P-CSCF has obtained after the location information of cell of UE, carries out follow-up processing, continues meetingWords are processed. Such as: substitute the entrained location information of cell coming up of UE, hold according to location information of cellThe strategy that row is different etc.
Under normal circumstances, ask in the request of UE initiation periodic location update, service request, base station switchingAsk, when network handover request, RAN node can be included in the subdistrict position of UE in request message,Thereby MME can obtain the current up-to-date subdistrict position of UE. When UE is during at Idle state, MME obtainsThe location information of cell of UE, when normally UE initiates periodic location update, move out tracking areaRAN node report when UE launch position update request after domain list (TAList). In the time of Idle state,UE is in tracking zone list (TAList) when switching cell, and MME does not also know the new of current UESubdistrict position.
When UE is at connected state, initiate service request (such as to carry out IMS register caused service pleaseAsk) time, RAN node can carry up-to-date subdistrict position to MME, and thereafter, when UE is at TAListInterior when mobile, MME can not obtain the up-to-date subdistrict position of UE. When UE wants to send out at one's leisurePlay service request, first will be switched to connected state from Idle state.
The subdistrict position of the UE storing for fear of MME self is not up-to-date, and MME can be everyInferior all to the up-to-date subdistrict position of RAN querying node UE, or require RAN node UE'sAfter changing, subdistrict position reports to immediately MME. But MME inquires about RAN node at every turn,Or requiring RAN node to report immediately after the subdistrict position of UE changes, is sometimes unnecessary. OnePlanting improved method, is that MME arranges a timer, and within the scope of timer time, MME usesThe subdistrict position of the UE self preserving, when exceeding after this timer, MME can save to RANPoint is searched the subdistrict position of UE.
Embodiment bis-
Fig. 6 obtains location information of cell according to the P-CSCF of the embodiment of the present invention two by Access LayerConfiguration diagram, in this Organization Chart:
P-CSCF has served as LCS client (LCSClient), is connected with GMLC by Le interface,To realize from the cell information of GMLC inquiry UE. GMLC obtains location information of cell from MME.
Based on the Organization Chart shown in Fig. 6, P-CSCF obtains the stream of the location information of cell of UE from Access LayerJourney schematic diagram as shown in Figure 7, comprises the steps:
S701, P-CSCF receives session request, need to inquire about the location information of cell of UE;
S702, P-CSCF, to GMLC launch position inquiry request, inquires about the location information of cell of UE;
S703, in response to step S703, GMLC sends position enquiring request to MME, if MMEOn preserve the location information of cell of UE, MME performs step S705, returns to UE's to GMLCLocation information of cell, otherwise MME execution step S704, to the subdistrict position of RAN querying node UEAfter information, then perform step S705;
In like manner, the GMLC in this step can adopt the inquiry mode identical with embodiment mono-, correspondingGround, 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,MME is to the location information of cell of RAN querying node UE. If the position that GMLC sends to UEPut in inquiry request, require MME that the location information of cell of UE is periodically provided, MME toRAN node is subscribed to the location information of cell of UE, the subdistrict position letter of UE detected when RAN nodeWhen breath changes, to the location information of cell of MME notice UE, MME is further to GMLCSend position updating record, the up-to-date location information of cell of notice UE.
S705, MME returns to the location information of cell of UE to GMLC;
S706, GMLC, to P-CSCF home position inquiry response, carries the position, current area of UEInformation;
S707, P-CSCF has obtained after the location information of cell of UE, carries out follow-up processing, continues meetingWords are processed. Such as: substitute the entrained location information of cell coming up of UE, hold according to location information of cellThe strategy that row is different etc.
Embodiment tri-
In the present embodiment, on the basis of embodiment mono-, two, if P-CSCF always needs to knowThe current up-to-date subdistrict position of UE, can require RAN node in the time that the subdistrict position of UE changes,Report the subdistrict position of UE.
After the subdistrict position that Fig. 8 has described UE changes, RAN node reports the subdistrict position of UEFlow chart.
S801, RAN node detects that the subdistrict position of UE changes;
S802, 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 tetra-
Flow process described in embodiment mono-, two, three, can be applied to GERAN, UTRAN accessSituation, accordingly, SGSN replaces MME, and GGSN replaces PGW, and RNC/NodeB replaces eNodeB,Flow process stands good.
In above-mentioned some embodiment, the network element of IMS layer inquiry UE subdistrict position is P-CSCF, and this isBecause P-CSCF is normally positioned at visit net, under roaming condition, P-CSCF can find easilyTo the location-server that is positioned at visit net. The IMS network element of inquiry UE subdistrict position can be also E-CSCF,Because the processing of urgent call must be in visited place, thereby E-CSCF is arranged in visit net, also possess andThe similar characteristic of P-CSCF. In non-roaming situation, S-CSCF (service call conversation control function,ServingCallSessionControlFunction) also can obtain UE by the method for above-described embodimentLocation information of cell.
In addition, the GMLC described in above-mentioned some embodiment, can be also the net of realizing identity functionUnit's entity, this network element entity and MME communication, with the subdistrict position of inquiry UE, and are simulated GMLC'sExternal interface part, provides the location information of cell of UE to upper strata.
In order to realize above method, the present invention also provides a kind of system of obtaining terminal positional information, instituteThe system of stating comprises:
Mobile management network element, for active reporting or whole to location-based service reported by network elements according to inquiry requestThe location information of cell of end (UE);
Described location-based service network element, for receiving the little of described UE that described mobile management network element providesZone position information, and active reporting or according to inquiry request to UE community described in IMS reported by network elementsPositional information;
Described IMS network element, for receiving the subdistrict position of the described UE that described location-based service network element providesInformation.
The location information of cell of the said UE of the present invention is the community that wireless base system is measured described terminalAfter change in location, active reporting is given described mobile management network element, or according to described mobile management networkThe inquiry of unit or subscription report.
Described location-based service network element can be Gateway Mobile Location Center (GMLC), or, position requestsFunction (LRF) and Gateway Mobile Location Center (GMLC), wherein, described LRF and described IMSNetwork element is mutual, and described GMLC and described mobile management network element are mutual, described LRF and described GMLCSend inquiry request and inquiry response by interface.
The LCS that described GMLC sends position location protocol (LPP) to described mobile management network element is fixedThe subdistrict position inquiry request that position inquiry request or described mobile management network element can be resolved is with inquiry terminalSubdistrict position.
According to the different network architectures and business realizing, described IMS network element is agent call session control meritEnergy (P-CSCF), emergency call session control function (E-CSCF) or service call conversation control function(S-CSCF); Described mobile management network element is GPRS serving GPRS support node (SGSN) or mobileProperty management entity (MME).
In addition, the present invention also provides a kind of mobile management network element, described mobile management network element for toLocation-based service network element provides the location information of cell of terminal (UE), comprising:
After the subdistrict position of described UE changes, initiatively to described in described location-based service reported by network elementsThe location information of cell of UE; Or,
According to the inquiry request of described location-based service network element, report described UE to described location-based service network elementLocation information of cell.
Wherein, described location-based service network element is Gateway Mobile Location Center (GMLC), or position pleaseAsk function (LRF) and Gateway Mobile Location Center (GMLC); Described mobile management network element is GPRSServing GPRS support node (SGSN) or Mobility Management Entity (MME).
The present invention also provides a kind of location-based service network element, and described location-based service network element is used for to IMS network elementThe location information of cell that terminal (UE) is provided, comprising:
After the subdistrict position of described UE changes, initiatively to UE described in described IMS reported by network elementsLocation information of cell; Or,
According to the inquiry request of described IMS network element, report the little position of described UE to described IMS network elementPut information.
Described location-based service network element is Gateway Mobile Location Center (GMLC), or, position requests functionAnd Gateway Mobile Location Center (GMLC) (LRF); Described IMS network element is agent call session controlFunction processed (P-CSCF), emergency call session control function (E-CSCF) or service call session controlFunction (S-CSCF).
Obviously, it is apparent to those skilled in the art that above-mentioned of the present invention each module or each step canTo realize with general calculation element, they can concentrate on single calculation element, or distributeOn the network forming at multiple calculation elements, alternatively, they can use the executable journey of calculation elementOrder code is realized, thereby, they can be stored in storage device and be carried out by calculation element, andAnd in some cases, can carry out shown or described step with the order being different from herein, orThey are made into respectively to each integrated circuit modules, or the multiple modules in them or step are madeBecome single integrated circuit module to realize. Like this, the present invention is not restricted to any specific hardware and softwareIn conjunction with.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for thisThe technical staff in field, the present invention can have various modifications and variations. All in spirit of the present invention andWithin principle, any amendment of doing, be equal to replacement, improvement etc., all should be included in protection of the present inventionWithin scope.
Claims (13)
1. a method of obtaining terminal positional information, is characterized in that, the method comprises:
IP Multimedia System IMS network element is to the subdistrict position letter of location-based service network element inquiry terminal UEBreath;
Described location-based service network element is to the location information of cell of mobile management network element inquiry UE, described in moveMobility management network element returns to the location information of cell of UE to described location-based service network element;
The location information of cell of described UE is returned to described IMS network element by described location-based service network element;
Wherein, described location-based service network element is inquired about the location information of cell of UE to mobile management network element,The location information of cell that described mobile management network element returns to UE to described location-based service network element is specially:
A) described location-based service network element sends the location-based service LCS of a standard to mobile management network elementLocating query request, i.e. position location protocol LPP request, described mobile management network element identification LPPIn request, desired inquiry is the location information of cell of UE, returns in mobility to location-based service network elementThe location information of cell of the UE preserving on managed network element, or to RAN querying node/subscription UE'sLocation information of cell; Or
B) described location-based service network element sends a direct subdistrict position inquiry to mobile management network elementRequest, described mobile management network element is identified this request, returns in mobile management to location-based service network elementThe location information of cell of the UE preserving on network element, or to RAN querying node/subscription UE communityPositional information.
2. the method for claim 1, is characterized in that: the location information of cell of described UE isThe subdistrict position that wireless base system is measured described UE changes rear active reporting to described mobile management networkUnit, or report described mobile management network according to the inquiry of described mobile management network element or subscriptionUnit.
3. the method for claim 1, is characterized in that, described location-based service network element is gatewayMobile positioning center GMLC, or, position requests function LRF and Gateway Mobile Location Center GMLC;Described IMS network element is Proxy Call Session Control Function P-CSCF, emergency call session control functionE-CSCF or service call conversation control function S-CSCF; Described mobile management network element is GPRS clothesBusiness support node SGSN or Mobility Management Entity MME.
4. obtain a terminal positional information method, it is characterized in that, the method comprises:
Mobile management network element initiatively or according to the inquiry of location-based service network element to described location-based service network elementThe location information of cell of terminal UE is provided;
Described location-based service network element initiatively or according to the inquiry of IP Multimedia System IMS network element to IMSNetwork element provides the location information of cell of described UE;
Wherein, described mobile management network element according to the inquiry of location-based service network element to described location-based service netUnit provides the location information of cell of UE to be specially:
A) described location-based service network element sends the location-based service LCS of a standard to mobile management network elementLocating query request, i.e. position location protocol LPP request, described mobile management network element identification LPPIn request, desired inquiry is the location information of cell of UE, returns in mobility to location-based service network elementThe location information of cell of the UE preserving on managed network element, or to RAN querying node/subscription UE'sLocation information of cell; Or
B) described location-based service network element sends a direct subdistrict position inquiry to mobile management network elementRequest, described mobile management network element is identified this request, returns in mobile management to location-based service network elementThe location information of cell of the UE preserving on network element, or to RAN querying node/subscription UE communityPositional information.
5. method as claimed in claim 4, is characterized in that: the location information of cell of described UE isThe subdistrict position that wireless base system is measured described UE changes rear active reporting to described mobile management networkUnit, or report described mobile management network according to the inquiry of described mobile management network element or subscriptionUnit.
6. method as claimed in claim 4, is characterized in that, described location-based service network element is gatewayMobile positioning center GMLC, or, position requests function LRF and Gateway Mobile Location Center GMLC,Wherein, described LRF and described IMS network element are mutual, described GMLC and described mobile management network elementAlternately, described LRF and described GMLC send inquiry request and inquiry response by interface.
7. method as claimed in claim 4, is characterized in that: described IMS network element is agent callConversation control function P-CSCF, emergency call session control function E-CSCF or service call session controlFunction S-CSCF processed; Described mobile management network element is GPRS serving GPRS support node SGSN or movementProperty management entity MME.
8. a system of obtaining terminal positional information, is characterized in that, described system comprises:
Mobile management network element, for active reporting or whole to location-based service reported by network elements according to inquiry requestThe location information of cell of end UE;
Described location-based service network element, for receiving the little of described UE that described mobile management network element providesZone position information, and active reporting or according to inquiry request on IP Multimedia System IMS network elementReport the location information of cell of described UE;
Described IMS network element, for receiving the subdistrict position of the described UE that described location-based service network element providesInformation;
Wherein, described mobile management network element according to inquiry request to location-based service reported by network elements terminal UELocation information of cell be specially:
A) described location-based service network element sends the location-based service LCS of a standard to mobile management network elementLocating query request, i.e. position location protocol LPP request, described mobile management network element identification LPPIn request, desired inquiry is the location information of cell of UE, returns in mobility to location-based service network elementThe location information of cell of the UE preserving on managed network element, or to RAN querying node/subscription UE'sLocation information of cell; Or
B) described location-based service network element sends a direct subdistrict position inquiry to mobile management network elementRequest, described mobile management network element is identified this request, returns in mobile management to location-based service network elementThe location information of cell of the UE preserving on network element, or to RAN querying node/subscription UE communityPositional information.
9. system as claimed in claim 8, is characterized in that: the location information of cell of described UE isThe subdistrict position that wireless base system is measured described terminal changes rear active reporting to described mobile managementNetwork element, or report according to the inquiry of described mobile management network element or subscription.
10. system as claimed in claim 8, is characterized in that, described location-based service network element is gatewayMobile positioning center GMLC, or, position requests function LRF and Gateway Mobile Location Center GMLC,Wherein, described LRF and described IMS network element are mutual, described GMLC and described mobile management network elementAlternately, described LRF and described GMLC send inquiry request and inquiry response by interface.
11. systems as claimed in claim 8, is characterized in that: described IMS network element is agent callConversation control function P-CSCF, emergency call session control function E-CSCF or service call session controlFunction S-CSCF processed; Described mobile management network element is GPRS serving GPRS support node SGSN or movementProperty management entity MME.
12. 1 kinds of mobile management network elements, is characterized in that: described mobile management network element is used for to positionPutting service network element provides the location information of cell of terminal UE, comprising:
After the subdistrict position of described UE changes, initiatively to described in described location-based service reported by network elementsThe location information of cell of UE; Or,
According to the inquiry request of described location-based service network element, report described UE to described location-based service network elementLocation information of cell;
Wherein, according to the inquiry request of described location-based service network element, report institute to described location-based service network elementThe location information of cell of stating UE is specially:
A) described location-based service network element sends the location-based service LCS of a standard to mobile management network elementLocating query request, i.e. position location protocol LPP request, described mobile management network element identification LPPIn request, desired inquiry is the location information of cell of UE, returns in mobility to location-based service network elementThe location information of cell of the UE preserving on managed network element, or to RAN querying node/subscription UE'sLocation information of cell; Or
B) described location-based service network element sends a direct subdistrict position inquiry to mobile management network elementRequest, described mobile management network element is identified this request, returns in mobile management to location-based service network elementThe location information of cell of the UE preserving on network element, or to RAN querying node/subscription UE communityPositional information.
13. mobile management network elements as claimed in claim 12, is characterized in that: described position clothesBusiness network element is Gateway Mobile Location Center GMLC, or position requests function LRF and gateway move fixedPosition center GMLC; Described mobile management network element is GPRS serving GPRS support node SGSN or mobilityManagement entity MME.
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| CN107087255B (en) * | 2016-02-15 | 2020-01-14 | 中兴通讯股份有限公司 | Method for terminal position management and terminal mobility management and network node |
| WO2019232686A1 (en) * | 2018-06-05 | 2019-12-12 | Telefonaktiebolaget Lm Ericsson (Publ) | Providing user equipment (ue) location information to a ue monitoring node |
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