CN101990177B

CN101990177B - Method and device for processing location service in mobile communication system

Info

Publication number: CN101990177B
Application number: CN200910161864.0A
Authority: CN
Inventors: 王英杰; 张永生
Original assignee: NTT Docomo Inc
Current assignee: NTT Docomo Inc
Priority date: 2009-08-05
Filing date: 2009-08-05
Publication date: 2015-04-15
Anticipated expiration: 2029-08-05
Also published as: CN101990177A; JP5578981B2; JP2011035911A

Abstract

The invention discloses a method and device for processing a location service in a mobile communication system. The method comprises the steps of: after a location service request is initiated, switching from an initial base station into a first home base station HeNB by UE (User Equipment); and after receiving a switching success message, confirming a location service continuity strategy by an MME (Mobile Management Entity) according to user subscription information and/or a location mapping relation of the first HeNB, and replying the location service response to an initiator of the location service request according to the location service continuity strategy. According to the method and device, requirements of the user for the location service and the configuration of different scenes of the HeNB are fully considered, thus the location service can be flexibly processed during the switching.

Description

A kind of processing method of location service in mobile communication system and device

Technical field

The present invention relates to mobile communication technology field, espespecially a kind of mobile communication system such as evolved packet system (EPS, Evolved Packet System) in, as subscriber equipment (UE, User Equipment) need to be switched to Home eNodeB (HeNB, Home evolved NodeB) time, the processing method of location service and device.

Background technology

Evolved packet system (EPS, Evolved Packet System) is the network architecture based on Long Term Evolution (LTE, Long Term Evolution) system of 3GPP exploitation.The EPS framework relevant to location service as shown in Figure 1, comprise evolved universal terrestrial radio access network (E-UTRAN, Evolved-Universal Terrestrial Radio Access Network) and evolution block core net (EPC, Evolved Packet Core).

As shown in Figure 1, the EPC relevant to location service comprises Mobility Management Entity (MME, Mobility Management Entity), evolution Serving Mobile Location Center (E-SMLC, Evolved-Serving Mobile Location Center), GMLC (GMLC, Gateway Mobile Location Center), gateway (SGW, Serving Gateway), packet data gateway (PGW, Packet Data Network Gateway) and home signature user server (HSS, Home Subscriber Server).

Wherein, MME is the chain of command network entity of EPS, primary responsibility subscriber equipment (UE, the Lawful Interception of the process of mobile management UserEquipment), session management, Non-Access Stratum signaling and safety encipher function, signaling, the selection function of PGW/SGW/MME, alarm information transmission, select suitable base station (eNB for alarm information, Evolved NodeB) or Home eNodeB (HeNB, HomeEvolved NodeB) etc.MME connects eNB/HeNB by S1-MME interface.

E-SMLC is the centre of location calculating UE position and issue auxiliary data, and primary responsibility and UE and/or eNB complete location Calculation alternately, issue auxiliary data to UE, performs location overall coordination, scheduling location resource requirement etc.E-SMLC connects MME by SLs interface.

GMLC is the authentication registration of the gateway between location service client and mobile network, primary responsibility location service, sends Location Request to MME, receives final positioning result, communicate etc. between multiple GMLC from MME.GMLC connects MME by SLg interface.

SGW is user's torus network entity of EPS, it is the mobility anchor point switched between eNB/HeNB, also be the mobility anchor point switched between 3GPP system, for perform the route of grouping and forwarding capability, the Lawful Interception in user face, idle condition UE downlink data buffer memory, roaming time local route data the function such as up-downgoing charging.SGW connects eNB/HeNB by S1-U interface.

PGW is the gateway that EPS network is connected with packet data network, the function such as thresholding control, UE IP address assignment, Lawful Interception of primary responsibility up-downgoing data flow.

HSS, for preserving the subscription data of user, comprises the address etc. of MME and PGW of user ID, phone number, various signing service quality (QoS, Quality of Service) parameter, service-user.

Further, E-UTRAN comprises eNB, HeNB and UE tri-kinds of network entities, is mainly used in user face in air interface between base station and UE and chain of command protocol processes and data transmission.Wherein, eNB provides wide area to cover on a large scale; HeNB provides the degree of depth to cover among a small circle, for reducing the leak of room area and hot spot region quorum sensing inhibitor, improves communication quality and the Consumer's Experience in these regions.In practical application, HeNB by broadband access technology if asymmetric digital subscriber line (ADSL, AsymmetricDigital Subscriber Line) or intelligent acess are to the core net of operator.

Based on the EPS shown in Fig. 1, in prior art, the flow process of location service process as shown in Figure 2, mainly comprises: location service request (process 21), location Calculation (process 22) and location service reply (process 23).

In process 21, the initiation of location service request has various ways.Particularly, as shown in step 21a, request can be initiated by UE and obtains self-position for user; Or, as shown in step 21b, initiate to be used for other location service clients by GMLC and obtain UE position; Or, as shown in step 21c, initiate to be used for network side by MME and obtain UE position.

In process 22, location Calculation comprises: in step 221, MME sends Location Request to E-SMLC; In step 222, E-SMLC and eNB or UE completes location Calculation alternately; In step 223, E-SMLC sends location and is returned to MME.Particularly, shown in step 222a is that E-SMLC and eNB completes location Calculation alternately, and shown in step 222b is that E-SMLC and UE completes location Calculation alternately.

It is corresponding that location service in process 23 is replied with the location service request in process 21.Such as, and step 21a accordingly, sends location service be returned to UE (step 23a) by MME.Similarly, corresponding with step 21b, in step 23b, MME sends location service and is returned to GMLC; Or corresponding with step 21c, in step 23c, MME sends the MME that location service is returned to the request of initiation.

It is pointed out that in the processing procedure of location service, UE may switch between two adjacent eNB.Such as, in step 222a, E-SMLC and eNB positions in the process of calculating alternately, switches if UE there occurs between base station, and the localization method so based on base station will be interrupted, and at this moment needs the continuity problem processing location service.Wherein, the continuity process of location service refers to the process when UE switches for location service.

Particularly, the flow process of location service continuity process as shown in Figure 3, comprising:

A step 301:E-SMLC and eNB starts location Calculation alternately.

Step 302:UE requires to be switched to the 2nd eNB from an eNB.

It should be noted that, initiating to switch the location algorithm of a front eNB time-out based on base station, and an eNB stops the location algorithm based on base station after handover success.

Step 303:MME upgrades to E-SMLC notify status after confirming handover success, namely there occurs the switching from an eNB to the 2nd eNB.

Step 304:E-SMLC sends new Location Request to MME, comprises UE mark and E-UTRAN parameter etc.

Step 305:MME sends positioning reporting to the 2nd eNB and controls, and comprises E-UTRAN parameter etc.

Step 306: the 2nd eNB sends positioning reporting to MME, this positioning reporting comprises the Cell Global Identification (CGI, Cell Global Identity) of the 2nd eNB and the measurement result etc. of the 2nd eNB.

Step 307:MME sends location to E-SMLC and replys, and comprises UE mark, the CGI of the 2nd eNB and the measurement result etc. of the 2nd eNB.

Can find out, if there is the situation that UE switches between eNB in the process providing location service, prior art positions after handover success for new eNB (eNB after namely switching).Similarly, UE is switched to another HeNB from a HeNB, or when being switched to HeNB from eNB, prior art also adopts above-mentioned location service treatment method.But this processing method is comparatively single, do not consider the deployment feature of eNB and HeNB.Under normal circumstances, the region that an eNB will cover in a big way, may be provided with coverage in this region and this eNB exists one or more overlapping HeNB.Or, also can be overlapping to some extent in coverage between multiple HeNB.Therefore, location service treatment method more is flexibly needed, so that the problem that the switching tackling UE brings to location service.

Summary of the invention

In view of this, main purpose of the present invention is the processing method and the device that provide a kind of location service in mobile communication system, the sweetly disposition location service when UE is switched to HeNB.

For achieving the above object, technical scheme of the present invention is specifically achieved in that

A processing method for location service in mobile communication system, comprising:

After location service request is initiated, user equipment (UE) is switched to First Family base station HeNB from initial base station;

After receiving handover success notice, Mobility Management Entity MME is according to the position mapping relations of user subscription information and/or a HeNB, determine location service continuity strategy, and according to this location service continuity strategy, location service is replied the initiator feeding back to location service request;

Wherein, described location service continuity strategy comprises primary importance business continuity policy or second place business continuity policy, described primary importance business continuity policy is that MME does not upgrade to evolution Serving Mobile Location Center E-SMLC notify status, described second place business continuity policy is that MME upgrades to E-SMLC notify status, and the position mapping relations of a described HeNB are sent to E-SMLC.

The method comprises further:

One or more HeNB, when to described MME registration, reports the neighbor base station information detected to this MME;

Described MME is that one or more HeNB described sets up corresponding position mapping relations.

The corresponding relation of position mapping relations record the one between HeNB and neighbor base station of a described HeNB, described neighbor base station is one or more base station eNB or other HeNB with a described HeNB with overlapping coverage.

The position mapping relations of a described HeNB record signal strength signal intensity and the mode of operation of other HeNB each in the signal strength signal intensity of each eNB in the mode of operation of a HeNB, neighbor base station, neighbor base station further.

Described MME comprises according to the position mapping relations determination location service continuity strategy of user subscription information and/or a HeNB:

Described MME obtains the location service priority information of this UE;

If this UE is low priority user, then MME performs described primary importance business continuity policy; If this UE is high priority user, then MME performs described second place business continuity policy.

The location service priority information that described MME obtains this UE comprises: the location service priority information obtaining described UE from user subscription information; Wherein, described user subscription information is stored in MME or home signature user server HSS, or obtains from location service request.

Described MME determines the deployment region type of a HeNB according to the position mapping relations of a HeNB; If a HeNB is deployed in first kind region, then MME performs described primary importance business continuity policy; If a HeNB is deployed in Second Type region, then MME performs described second place business continuity policy.

According to the position mapping relations of a HeNB, described MME determines that the deployment region type of a HeNB comprises:

MME judges whether other HeNB recorded in the position mapping relations of a HeNB exceed predetermined number, if exceeded, determine that a HeNB is deployed in the public first kind region of HeNB, otherwise determine that this HeNB is deployed in the privately owned Second Type region of HeNB.

MME obtains the location service priority information of this UE, and determines the deployment region type of a HeNB according to the position mapping relations of a HeNB;

If this UE is low priority user and a HeNB is deployed in first kind region, then MME performs described primary importance business continuity policy; Otherwise MME performs described second place business continuity policy.

Described MME performs described primary importance business continuity policy and comprises: MME does not upgrade to E-SMLC notify status after receiving handover success notice, and the positioning result for initial base station that E-SMLC replys is responded as location service, reply to the initiator of described location service request.

Described MME performs described second place business continuity policy and comprises:

MME upgrades to E-SMLC notify status, and the position map information recorded in the position mapping relations of a described HeNB is sent to described E-SMLC, the first location Calculation is carried out by described E-SMLC, and the first location Calculation result for a HeNB of being replied by E-SMLC is as primary importance service response, replies to the initiator of described location service request.

Described MME performs described second place business continuity policy and comprises further:

After MME receives the Location Request of E-SMLC transmission, send positioning reporting to a HeNB to control, to obtain the positioning reporting that a HeNB provides, and send to described E-SMLC to carry out the second location Calculation this positioning reporting, again using described second location Calculation result as second place service response, reply to the initiator of described location service request.

Described location service request is initiated by UE, or is initiated by GMLC GMLC, or is initiated by MME.

Described initial base station is base station eNB or the 2nd HeNB.

A processing unit for location service in mobile communication system, comprising:

Location service interactive module, for when user equipment (UE) is switched to First Family base station HeNB from initial base station, receives handover success notice; Wherein, switch in described in after location service request is initiated and occur;

Location service control module, for receive handover success notice in described location service interactive module after, according to the position mapping relations of user subscription information and/or a HeNB, determines location service continuity strategy; Wherein, described location service continuity strategy comprises primary importance business continuity policy or second place business continuity policy, described primary importance business continuity policy is that MME does not upgrade to evolution Serving Mobile Location Center E-SMLC notify status, described second place business continuity policy is that MME upgrades to E-SMLC notify status, and the position mapping relations of a described HeNB are sent to E-SMLC;

Described location service interactive module is further used for according to described location service continuity strategy, location service response is replied to the initiator of location service request.

This device comprises further:

Position maps sets up module, for receiving the neighbor base station information that one or more HeNB reports when registering, and is that one or more HeNB described sets up corresponding position mapping relations;

Wherein, described neighbor base station is one or more base station eNB or other HeNB with described HeNB with overlapping coverage.

Described location service control module is used for:

Obtain the location service priority information of this UE and judge; If this UE is low priority user, then notify that location service interactive module performs described primary importance business continuity policy; If this UE is high priority user, then notify that location service interactive module performs described second place business continuity policy.

Described location service control module is used for:

The deployment region type of a HeNB is determined according to the position mapping relations of a HeNB; If a HeNB is deployed in first kind region, then notify that location service interactive module performs described primary importance business continuity policy; If a HeNB is deployed in Second Type region, then notify that location service interactive module performs described second place business continuity policy.

Described location service control module is used for:

Obtain the location service priority information of this UE, and determine the deployment region type of a HeNB according to the position mapping relations of a HeNB;

If this UE is low priority user and a HeNB is deployed in first kind region, then notify that location service interactive module performs described primary importance business continuity policy; Otherwise notice location service interactive module performs described second place business continuity policy.

Described location service interactive module is used for:

After the notice receiving the described primary importance business continuity policy of execution that location service control module sends, do not upgrade to E-SMLC notify status;

The positioning result for initial base station that E-SMLC replys is responded as location service, replies to the initiator of described location service request.

Described location service interactive module is used for:

After the notice receiving the described second place business continuity policy of execution that location service control module sends, upgrade to E-SMLC notify status;

The position map information recorded in the position mapping relations of a described HeNB is sent to described E-SMLC, carries out the first location Calculation by described E-SMLC;

The first location Calculation result for a HeNB of being replied by E-SMLC, as primary importance service response, replies to the initiator of described location service request.

Described location service interactive module is used for:

After the Location Request receiving E-SMLC transmission, send positioning reporting to a HeNB and control, to obtain the positioning reporting that a HeNB provides;

Described E-SMLC is sent to carry out the second location Calculation this positioning reporting;

Using described second location Calculation result as second place service response, reply to the initiator of described location service request.

As seen from the above technical solution, the processing method of location service in mobile communication system provided by the invention and device, optimized by signaling process and utilize the equipment in EPC, realize the continuity of the flexible control position business when UE is switched to HeNB, make operator can according to user to the needs of location service with dispose the different scenes of HeNB, sweetly disposition location service.

Further, for public HeNB close quarters, the embodiment of the present invention avoids the location service signaling consumption repeatedly switching and bring, and saves public Radio Resource and operation cost, does not provide frequently regional location among a small circle to upgrade to location service low priority user; For private HeNB cell region, the location service that the embodiment of the present invention provides positioning precision to do one's best to the user having this HeNB, shortens the response time of location service, adds the value that user disposes privately owned HeNB.

Accompanying drawing explanation

Fig. 1 is the configuration diagram of evolved packet system (EPS) relevant to location service in prior art;

Fig. 2 is the schematic flow sheet of location service process in prior art;

Fig. 3 is the schematic flow sheet of location service continuity process in prior art;

Fig. 4 is the schematic flow sheet of location service treatment method in one embodiment of the invention;

Fig. 5 is the schematic flow sheet of location service treatment method in another embodiment of the present invention;

Fig. 6 is the schematic flow sheet of location service treatment method in further embodiment of this invention;

Fig. 7 is the schematic flow sheet setting up position mapping relations in one embodiment of the invention;

Fig. 8 is the schematic flow sheet determining location service continuity strategy in one embodiment of the invention;

Fig. 9 is the schematic flow sheet determining location service continuity strategy in another embodiment of the present invention;

Figure 10 is the schematic flow sheet determining location service continuity strategy in further embodiment of this invention;

Figure 11 is the structural representation of location service processing unit in one embodiment of the invention;

Figure 12 is the structural representation of evolution Serving Mobile Location Center (E-SMLC) in one embodiment of the invention;

Figure 13 is the structural representation of Home eNodeB (HeNB) in one embodiment of the invention.

Embodiment

For making object of the present invention, technical scheme and advantage clearly understand, to develop simultaneously embodiment referring to accompanying drawing, the present invention is described in more detail.

In LTE system, operator or manager by HeNB dense deployment in market, gymnasium, the public place such as school and hotel, as the public resource used to the user entering these places, above-mentioned HeNB is public HeNB.Generally, the mode of operation of HeNB can be configured to open mode (Open Mode) or mixed mode (Hybrid Mode), and the user entered under two kinds of patterns in the coverage of the HeNB of dense deployment can be switched to HeNB.Just, in a hybrid mode, that network needs differentiation access HeNB is closed user group (CSG, Closed Subscriber Group) user is also non-CSG user, controls to carry out necessary QoS.

Under normal circumstances, each HeNB covers region more among a small circle, and multiple HeNB of dense deployment cover a public domain, and overlap with the region in a big way that one or more eNB covers.After user enters public HeNB close quarters, wherein certain HeNB may be linked into after the multiple HeNB of switching, or after passing through whole public domain, be switched to certain eNB of overlapped coverage.In these cases, on the one hand, operator or manager wish to avoid repeatedly switching the location service continuity signaling consumption brought, and save public Radio Resource and operation cost; On the other hand, can it be not necessary for the low user of some location service priority provides frequently regional location among a small circle to upgrade.

Further, in practical application, HeNB also can be deployed in private home by user, as the not common resource used to domestic consumer.Now, HeNB is typically configured to closed mode (Closed Mode), and the user only belonging to some specific CSG could access this HeNB.Usually, each HeNB covers region more among a small circle, may overlap with the comparatively large coverage region of one or more eNB.After user enters private HeNB cell region, generally can be switched to this HeNB by the eNB of overlap, and the frequent switching from this HeNB to other base stations generally can not occur.In this case, on the one hand, wishing to obtain when being switched to this HeNB as the possessory user of HeNB the location service that positioning precision does one's best, shortening the response time of location service; On the other hand, operator wishes that the signaling consumption with increasing improves user satisfaction, and adding users disposes the value of privately owned HeNB.

For meeting the demand, embodiments providing a kind of processing method and device of location service in mobile communication system, when UE being switched to a HeNB, signaling process being optimized, utilize the continuity of the flexible control position of the equipment in EPC business.Wherein, describedly UE is switched to a HeNB and is switched to this HeNB from an eNB, or be switched to this HeNB from another HeNB.

Fig. 4 illustrates the flow process of location service treatment method in one embodiment of the invention, comprises the following steps:

Step 401: the neighbor base station information detected is reported MME by one or more HeNB is that described one or more HeNB sets up position mapping relations by MME.

Wherein, the neighbor base station information that HeNB reports comprises the information of other HeNB that this HeNB can detect and one or more eNB.Generally, they, therefore, it is possible to detected by this HeNB, can be referred to as the neighbor base station of this HeNB by these other HeNB and one or more eNB and the overlay area reporting this HeNB of neighbor base station information to have overlap; Position mapping relations refer to each HeNB and the position corresponding relation of contiguous eNB with other contiguous HeNB.

Step 402:MME, according to user subscription information and/or described position mapping relations, determines location service continuity strategy.

Wherein, user subscription information comprises UE user ID and location service customized information; Location service continuity strategy comprises MME and does not upgrade (hereinafter referred to as primary importance business continuity policy) to E-SMLC notify status, or MME sends to E-SMLC (hereinafter referred to as second place business continuity policy) in the position mapping relations of the HeNB be switched to by UE while the renewal of E-SMLC notify status.The specific implementation of this step is see the flow process of Fig. 8-10.

Step 403: according to the situation receiving state updating, E-SMLC performs and location service continuity strategy processes accordingly.

Such as, do not upgrade to E-SMLC notify status if location service continuity strategy is MME, then the process of E-SMLC is not trigger position business continuance process; If location service continuity strategy sends position mapping relations while being notify status renewal, then the process of E-SMLC is utilize the position mapping relations received to position calculating, and trigger position business continuance process simultaneously.

Wherein, the process of location service continuity can with reference to the flow process of prior art, the flow process of step 304-307 in such as Fig. 3, and the base station after just switching not is the 2nd eNB shown in Fig. 3, but a HeNB.

Fig. 5 illustrates the flow process of location service treatment method in another embodiment of the present invention, comprises the following steps:

Step 501 a: HeNB reports the neighbor base station information detected to MME.

Step 502:MME is that a described HeNB sets up position mapping relations.

Step 503:UE is to MME launch position service request.Here, also can be GMLC or MME launch position service request.It should be noted that, that now this UE accesses is an eNB or the 2nd HeNB.

Step 504:MME initiates Location Request to E-SMLC.

The described eNB of the current access of step 505:E-SMLC and UE or the 2nd HeNB is mutual, performs positioning flow.

Step 506:UE is switched to a described HeNB from described eNB or the 2nd HeNB, and before namely switching, that UE access is an eNB or the 2nd HeNB, and after switching, that access is a HeNB.

Before initiation switches, the location algorithm that described eNB or the 2nd HeNB will suspend based on base station; After handover success, described eNB or the 2nd HeNB stops the location algorithm based on base station.

Step 507:MME, according to the position mapping relations of user subscription information and/or a described HeNB, determines to perform primary importance business continuity policy.

Here, if user enters the public domain of HeNB dense deployment, the switching of UE between multiple HeNB may be there is after this step, then repeat the process being similar to step 506-507.Such as: UE is switched to the 3rd HeNB from a HeNB again, then MME is further according to information such as the position mapping relations of the 3rd HeNB, determines location service continuity strategy.After UE no longer switches, MME is according to the location service continuity strategy execution corresponding operating finally determined.

Step 508:E-SMLC sends location to MME and replys.Here, the time sending location reply, according to the requirement of location service, may be reply immediately or periodically reply.

Step 509:MME sends location service to UE and replys.Here, corresponding with step 503, also may be that MME sends location service reply to GMLC or MME.

Fig. 6 illustrates the flow process of location service treatment method in further embodiment of this invention, comprises the following steps:

Step 601 a: HeNB reports the neighbor base station information detected to MME.

Step 602:MME is that a described HeNB sets up position mapping relations.

Step 603:UE is to MME launch position service request.Here, also can be that GMLC or MME initiates described location service request.

Step 604:MME initiates Location Request to E-SMLC.

The eNB of the current access of step 605:E-SMLC and UE or the 2nd HeNB is mutual, performs positioning flow.

Step 606:UE is switched to a HeNB from described eNB or the 2nd HeNB.Described eNB or the 2nd HeNB suspends the location algorithm based on base station before initiating switching, and after handover success, stop the location algorithm based on base station.

Step 607:MME, according to the position mapping relations of user subscription information and/or a described HeNB, determines to perform second place business continuity policy.In this case, a HeNB is generally the privately owned HeNB that user disposes within the family.

Step 608:MME sends state updating to E-SMLC, and notice E-SMLC there occurs the switching from described eNB or the 2nd HeNB to a described HeNB.The step 303 of this step and prior art is similar.

Step 609:MME sends position map information to E-SMLC.Here, position map information is that MME obtains in the position mapping relations of a described HeNB foundation from step 602.

Step 610:E-SMLC carries out the first location Calculation based on the position map information of the described HeNB that step 609 provides.

Wherein, the position map information that step 609 provides comprises the signal of the signal of one or more eNB that a HeNB detects and other HeNB one or more except a HeNB.One HeNB can detect the signal of these base stations, and illustrate that a HeNB is within the coverage of these eNB and HeNB, a HeNB is overlapping to some extent with the coverage of these eNB and HeNB in other words.

For the signal of other HeNB and/or eNB that a HeNB detects, can also executive signal intensity judge further, if signal strength signal intensity is greater than certain threshold value, can determine that other corresponding HeNB and/or eNB are the neighbor base station of a HeNB, the scope of location Calculation can be reduced like this, improve the precision that E-SMLC positions calculating.

Based on prior art, E-SMLC can utilize position map information, calculates the position of a HeNB.This result of calculation possibility precision is not high, belongs to the location Calculation of doing one's best, referred to herein as the first location Calculation.

Step 611:E-SMLC sends the first location response to MME, comprises the result of the first location Calculation.

Step 612:MME sends primary importance service response to UE, comprises the information of the first location response.Here, corresponding with step 603, also may be that MME sends primary importance service response to GMLC or MME.

Step 613:E-SMLC sends Location Request to MME, comprises the mark and E-UTRAN parameter etc. of UE.The step 304 of this step and prior art is similar.

Step 614:MME sends positioning reporting to a HeNB and controls, and comprises the information such as E-UTRAN parameter.

Step 615 a: HeNB sends positioning reporting to MME, comprises the mark of a HeNB and the measurement result etc. of a HeNB.

Step 616:MME sends location response to E-SMLC, comprises the information such as the mark of UE, the mark of a HeNB and the measurement result of a HeNB.

The information that step 617:E-SMLC provides based on step 616 carries out the second location Calculation, calculates the position of a HeNB, and returns the second location response to MME.

Compared with the first location Calculation, the second location Calculation of this step controls owing to there being positioning reporting, and is the instant measurement result utilizing HeNB, and positioning precision is compared the first location Calculation and may be increased.

Step 618:MME sends second place service response to UE, comprises the information of the second location response.Here, corresponding with step 603, also may be that MME sends second place service response to GMLC or MME.

It should be noted that, above-mentioned steps 613-618 reference be the flow process of location service continuity process in prior art.

Can find out, the flow process that the embodiment of the present invention provides can before the second place service response of prior art, and first reply primary importance service response to UE, thus shorten the response time of location service, adding users disposes the value of privately owned HeNB.

Fig. 7 illustrates in one embodiment of the invention the idiographic flow setting up position mapping relations, comprises the following steps:

Step 701: a HeNB startup power on self detection, carries out the preliminary preparations such as frequency scanning is tuning.

Step 702: this HeNB performs and finds network operation, carries out security negotiation with MME, the SCTP (SCTP, Stream Control TransmissionProtocol) setting up escape way and transport layer connects.

Step 703: this HeNB sends HeNB login request message to MME, comprises this HeNB identifies, this HeNB detects one or more eNB and the required parameter of the information of other HeNB, the pattern of this HeNB and other register flow path within the message.

Particularly, the information of described one or more eNB and other HeNB comprises: the reference signal of CGI and eNB of eNB is to the mark of the signal strength signal intensity of this HeNB, other HeNB and reference signal to the signal strength signal intensity of this HeNB.

After step 704:MME receives HeNB login request message, setting up with HeNB is the position mapping relations form of index.

By this related table, establish the eNB of this HeNB and overlapping covering and the corresponding relation around between other HeNB.It is pointed out that this related table may be used for MME and determines location service continuity strategy, and provide position map information for E-SMLC location Calculation.

Shown in table one is a kind of possible form of this related table, the position mapping relations of each table entries record HeNB, and in such as table entries 1, record is the position mapping relations of HeNB1.Can find out, and the base station of HeNB1 vicinity comprises 1 eNB and 3 other HeNB, is CGI1, HeNB2-4 respectively.Further, this related table can record the various information needed of the neighbor base station of certain HeNB, and the reference signal of such as contiguous eNB is to the signal strength signal intensity of this HeNB, and/or other reference signals of being close to HeNB are to the signal strength signal intensity of this HeNB and mode of operation etc.

Table one

It should be noted that, MME is that the position mapping relations that HeNB sets up can adopt form, or can express other forms of these position mapping relations.

Step 705: this HeNB registers by rear, MME sends HeNB registration reply message to this HeNB, represents that the business that this HeNB can use EPC to provide is connected with network.

Can find out, the present embodiment is optimized existing register command flow process, completes while HeNB registers and can set up position mapping relations as this HeNB.Each HeNB in LTE system can according to above-mentioned flow process in the position mapping relations that MME sets up and this HeNB is corresponding.

As shown in Figure 8, determine in one embodiment of the invention that the flow process of location service continuity strategy comprises the following steps:

Step 801:MME checks the user subscription information of UE, judges whether this UE user is location service high priority user.

It should be noted that, obtain in the location service customized information that described location service priority can comprise from user subscription information.Wherein, user subscription information is kept in MME or HSS, or is carried in location service request message.

Step 802: if it is determined that the location service priority of UE user is high, so MME determines to perform second place business continuity policy.

Step 803: if it is determined that the location service priority of UE user is low, so MME determines to perform primary importance business continuity policy.

As shown in Figure 9, determine in another embodiment of the present invention that the flow process of location service continuity strategy comprises the following steps:

Step 901:MME checks the position mapping relations of a HeNB (HeNB after namely switching), judge the deployment region type of a HeNB, such as judge whether this deployment region type is public HeNB close quarters or judge whether a HeNB belongs to public HeNB close quarters.

Particularly, judge that the method whether a HeNB belongs to public HeNB close quarters can be: judge in the mapping relations of position whether to comprise other HeNB of at least N number of opening or closed mode in the HeNB table entries that is index; If comprised, judge that a HeNB belongs to public HeNB close quarters, otherwise a HeNB does not belong to public HeNB close quarters.Described N carries out arranging and adjusting according to the deployment scenario of HeNB, can get the arbitrary integer being more than or equal to 1.Such as, for the situation of N=2, when comprising 2 other HeNB in the table entries that a HeNB is corresponding, just can judge that a HeNB belongs to public HeNB close quarters.

Further, when judging whether a HeNB belongs to public HeNB close quarters, can by signal strength signal intensity determination neighbor base station, to improve the accuracy that MME determines location service continuity strategy, in such as table one, the reference signal of CGI1 is greater than prearranged signal strength threshold to the signal strength signal intensity 1 of HeNB1, CGI1 can be defined as the neighbor base station of HeNB1.That is, using the option of signal strength signal intensity as region residing for judgement the one HeNB.

Step 902 a: if it is determined that HeNB belongs to public HeNB close quarters, so MME determines to perform primary importance business continuity policy.

Step 903 a: if it is determined that HeNB does not belong to public HeNB close quarters (being such as private HeNB cell region), so MME determines to perform second place business continuity policy.

As shown in Figure 10, determine in further embodiment of this invention that the flow process of location service continuity strategy comprises the following steps:

Step 1001:MME checks the user subscription information of UE, judges whether this UE user is location service high priority user.If it is determined that the location service priority of this UE user is low, then perform step 1002; Otherwise, judge that the location service priority of UE user is as height, perform step 1003.

Step 1002:MME continues the position mapping relations of inspection the one HeNB, and judges whether a HeNB belongs to public HeNB close quarters.If it is determined that a HeNB does not belong to public HeNB close quarters, then perform step 1003; Otherwise, judge that a HeNB belongs to public HeNB close quarters, perform step 1004.

Step 1003:MME determines to perform second place business continuity policy.

Step 1004:MME determines to perform primary importance business continuity policy.

Based on the processing method of location service in above-described mobile communication system (such as EPS), the embodiment of the present invention also accordingly provides the processing unit of location service in mobile communication system.

Figure 11 is the processing unit of location service in one embodiment of the invention, and this device is arranged in mobile communication system (such as EPS), comprising:

Location service interactive module, for when user equipment (UE) is switched to First Family base station HeNB from initial base station, receives handover success notice; Wherein, location service request was initiated before described switching occurs;

Location service control module, for receive handover success notice in described location service interactive module after, according to the position mapping relations of user subscription information and/or a HeNB, determines location service continuity strategy;

During embody rule, the processing unit of this location service can be arranged in MME, or accomplished by carrying out function upgrading to MME.

This device comprises further:

Wherein, described neighbor base station is one or more base station eNB or other HeNB with described HeNB with overlapping coverage.Particularly, position map the function setting up module in realization can the flow process of reference diagram 7.

Described location service control module is used for:

Obtain the location service priority information of this UE and judge; If this UE is low priority user, then notify that location service interactive module performs primary importance business continuity policy; If this UE is high priority user, then notify that location service interactive module performs second place business continuity policy.It should be noted that, the specific implementation of this part function of location service control module can the flow process of reference diagram 8.

Described location service control module is used for:

The deployment region type of a HeNB is determined according to the position mapping relations of a HeNB; If a HeNB is deployed in first kind region, then notify that location service interactive module performs primary importance business continuity policy; If a HeNB is deployed in Second Type region, then notify that location service interactive module performs second place business continuity policy.Specific implementation can the flow process of reference diagram 9, repeats no more herein.

During practical application, first kind region can be public HeNB close quarters, and Second Type region can be private HeNB cell region.

Described location service control module is used for:

If this UE is low priority user and a HeNB is deployed in first kind region, then notify that location service interactive module performs primary importance business continuity policy; Otherwise notice location service interactive module performs second place business continuity policy.Specific implementation can with reference to the flow process of Figure 10.

Described location service interactive module is used for:

After the notice receiving the execution primary importance business continuity policy that location service control module sends, do not upgrade to evolution Serving Mobile Location Center E-SMLC notify status;

The positioning result for initial base station that E-SMLC replys is responded as location service, replies to the initiator of described location service request.Specific implementation can the flow process of reference diagram 5.

Described location service interactive module is used for:

After the notice receiving the execution second place business continuity policy that location service control module sends, upgrade to E-SMLC notify status;

The first location Calculation result for a HeNB of being replied by E-SMLC, as primary importance service response, replies to the initiator of described location service request.Specific implementation can the flow process of reference diagram 6.

Described location service interactive module is used for:

Above-mentioned location service interactive module can be for supporting the communication interface that other equipment in MME and mobile communication system are mutual, for the treatment of interface operations such as S1-MME, SLs.

Figure 12 is the evolution Serving Mobile Location Center (E-SMLC) of supporting location business in one embodiment of the invention, comprising:

Positioning interaction module, for the state updating that receiving mobility management entity MME sends, and the position mapping relations of HeNB after receiving the switching that MME provides;

Location Calculation module, for carrying out the first location Calculation according to the position mapping relations of HeNB after described switching;

Described positioning interaction module is further used for, and is sending Location Request forward direction MME reply for the first location Calculation result switching rear HeNB.

Described positioning interaction module is further used for: send Location Request for the state updating received to MME, receives the positioning reporting that MME provides, and replys the second location Calculation result;

Described location Calculation module is further used for, and carries out described second location Calculation according to this positioning reporting.

Figure 13 is the Home eNodeB (HeNB) of supporting location business in one embodiment of the invention, comprising:

Detection module, for detect and this HeNB has one or more base station eNB or other HeNB of overlapping coverage, obtains the neighbor base station information of this HeNB;

Communication module, for when registering this HeNB to Mobility Management Entity MME, reports described neighbor base station information.

Can find out, HeNB, E-SMLC and MME co-ordination, make operator can according to user to the needs of location service with dispose the different scenes of HeNB, sweetly disposition location service.

The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. a processing method for location service in mobile communication system, is characterized in that, comprising:

After receiving handover success notice, Mobility Management Entity MME is according to the position mapping relations of user subscription information and/or a HeNB, determine location service continuity strategy, and location service response is replied to the initiator of location service request according to this location service continuity strategy;

2. method according to claim 1, is characterized in that, comprises further:

3. method according to claim 1 and 2, it is characterized in that, the corresponding relation of position mapping relations record the one between HeNB and neighbor base station of a described HeNB, described neighbor base station is one or more base station eNB and/or one or more other HeNB with a described HeNB with overlapping coverage.

4. method according to claim 3, it is characterized in that, the position mapping relations of a described HeNB record signal strength signal intensity and the mode of operation of other HeNB each in the signal strength signal intensity of each eNB in the mode of operation of a HeNB, neighbor base station, neighbor base station further.

5. method according to claim 1, is characterized in that, described MME comprises according to the position mapping relations determination location service continuity strategy of user subscription information and/or a HeNB:

Described MME obtains the location service priority information of this UE;

6. method according to claim 5, is characterized in that, the location service priority information that described MME obtains this UE comprises: the location service priority information obtaining described UE from user subscription information; Wherein, described user subscription information is stored in MME or home signature user server HSS, or obtains from location service request.

7. method according to claim 2, is characterized in that, described MME comprises according to the position mapping relations determination location service continuity strategy of user subscription information and/or a HeNB:

8. method according to claim 7, is characterized in that, according to the position mapping relations of a HeNB, described MME determines that the deployment region type of a HeNB comprises:

9. method according to claim 2, is characterized in that, described MME comprises according to the position mapping relations determination location service continuity strategy of user subscription information and/or a HeNB:

10. the method according to any one of claim 5-9, it is characterized in that, described MME performs described primary importance business continuity policy and comprises: MME does not upgrade to E-SMLC notify status after receiving handover success notice, and the positioning result for initial base station that E-SMLC replys is responded as location service, reply to the initiator of described location service request.

11. methods according to any one of claim 5-9, it is characterized in that, described MME performs described second place business continuity policy and comprises:

12. methods according to claim 11, is characterized in that, described MME performs described second place business continuity policy and comprises further:

13. methods according to claim 1, is characterized in that, described location service request is initiated by UE, or are initiated by GMLC GMLC, or initiated by MME.

14. methods according to claim 1, is characterized in that, described initial base station is base station eNB or the 2nd HeNB.

The processing unit of 15. 1 kinds of location service in mobile communication systems, is characterized in that, comprising:

16. devices according to claim 15, is characterized in that, comprise further:

17. devices according to claim 15, is characterized in that, described location service control module is used for:

18. devices according to claim 16, is characterized in that, described location service control module is used for:

19. devices according to claim 16, is characterized in that, described location service control module is used for:

20. devices according to any one of claim 15-19, it is characterized in that, described location service interactive module is used for:

21. devices according to any one of claim 15-19, it is characterized in that, described location service interactive module is used for:

22. devices according to claim 21, is characterized in that, described location service interactive module is used for: