A kind of system and method for locating realized
Technical field
The present invention relates to positioning field, be meant a kind of system and method for locating realized especially.
Background technology
Navigation system (LCS, Location System) is meant can obtain system specific, the movable object more specific location information.At present, in mobile communication system, obtain the positional information of target UE (UE) by location technology, as cell ID, latitude and longitude information etc.Under the support of Electronic Map Information System (GIS) and location-based content information system, the positional information of object UE can be offered object UE, be used for object UE user's self poisoning; Also can offer communication network itself, be used for the subregion and charge or Operation and Maintenance; Also can offer client's application end that other requests obtain the object UE positional information, promptly LCS client (LCS Client) as mechanism and individual, is used for value-added service.
In the mobile communications network of identical standard, object UE can realize roaming between each navigation system of mobile communications network.
Fig. 1 is a networking schematic diagram of realizing the location in the third generation (3G) mobile communications network, as shown in Figure 1, LCS client 101 is to request ground GMLC (RGMLC, RequestedGateway Mobile Location Center) 102 Location Requests that send object UE 108, after RGMLC 102 receives Location Request, identify according to object UE, find the ownership place GMLC (HGMLC of object UE 108, Home Gateway Mobile Location Center) home subscriber server (HSS of 103 regions, Home Subscriber Server)/Home Location Register (HLR, Home Location Register) 104, and carry out alternately with HSS/HLR 104, obtain object UE 108 current location messages, RGMLC 102 is according to object UE 108 current location messages then, find the location GMLC (VGMLC of object UE 108, Visited Gateway Mobile Location Center) HSS/HLR 106 of 105 regions, and carry out alternately with HSS/HLR 106, obtain and object UE 108 current-position related information, thereby obtain the more specific location information of object UE 108.VGMLC 105 and HSS/HLR 106 belong in the Public Land Mobile Network network (PLMN, Public Land Mobile Network) 107 at the current place of object UE.RGMLC 102, RGMLC 103, VGMLC 105 place mobile communications networks are all based on same standard.
Fig. 2 is a networking schematic diagram of realizing the location in the 3G2 mobile communications network, as shown in Figure 2, LCS client 101 is to request ground mobile positioning center (RMPC, Requested Mobile PositionCenter) 201 Location Requests that send object UE, after RMPC 201 receives Location Request, identify according to object UE, find the ownership place mobile positioning center (HMPC of object UE, Home MobilePosition Center) HLR 203 of 202 regions, and carry out alternately with HLR 203, obtain the current location message of object UE, RMPC 201 is according to the current location message of object UE then, find the location mobile positioning center (VMPC of object UE, Visited Mobile PositionCenter) HLR 205 of 204 regions, and carry out obtaining and the object UE current-position related information alternately, thereby obtain the more specific location information of object UE with HLR 205.
By above description as seen, GMLC or MPC not only need to link to each other with the communication equipments such as HSS/HLR of this locality, also need to link to each other with other communication equipments such as HSS/HLR, make the complicated network structure, cause the maintenance of mobile communications network and the very difficulty of upgrading are increased the cost of safeguarding and upgrading mobile communications network.
In addition, because GMLC or MPC must link to each other with communication equipment non-indigenous with local, can't realize the roaming between each navigation system in the mobile communications network of various criterion by prior art at all, for example, object UE can't realize roaming between each navigation system in the above 3G mobile communications network and the 3G2 mobile communications network.
Summary of the invention
In view of this, one object of the present invention is to provide a kind of system of locating of realizing, simplifies structure of mobile communication network.Another object of the present invention is to provide a kind of method of locating of realizing, make that the location relevant information only needs transmit by each centre of location.
In order to achieve the above object, the invention provides a kind of system of locating of realizing, this system comprises: the more than one centre of location and one or more communication equipment with address resolution function, the centre of location with its under one or more communication equipments in the mobile communications network link to each other, each centre of location links to each other.
The present invention also provides a kind of method of locating of realizing, the method includes the steps of:
A, the request ground centre of location are received Location Request, find the location centre of location at the current place of object UE;
B, the request ground centre of location send Location Request to the described location centre of location, obtain the positional information of object UE.
The request ground centre of location by with self under communication equipment mutual in the mobile communications network, find the location centre of location at the current place of object UE under among the performing step A.
Communication equipment in the described request ground centre of location and self the affiliated mobile communications network comprises alternately: request ground centre of location communication equipment in the mobile communications network under self provides the object UE sign, communication equipment identifies according to object UE, and the address information of the location centre of location at the current place of object UE is provided to the request ground centre of location;
The request ground centre of location finds the location centre of location at the current place of object UE according to described address information.
Before the address information of the described location centre of location that the current place of object UE is provided to the request ground centre of location, further comprise: described communication equipment and other communication equipments carry out obtaining the address information of the location centre of location at the current place of object UE alternately.
The positional information of obtaining object UE described in the step B comprises: after the location centre of location is received Location Request, carry out alternately with the communication equipment of mobile communications network under it, obtain and calculate the required related data of object UE positional information.
Described obtaining calculated before the required related data of object UE positional information, further comprises: the location centre of location is carried out with the request ground centre of location alternately.
Described steps A further comprises: the ownership place centre of location that finds object UE.
Described step B further comprises: the request ground centre of location sends Location Request to the described ownership place centre of location.
Further comprise after the described step B: the request ground centre of location provides described object UE positional information to LCS client.
The scheme that proposes according to the present invention, the centre of location that will have an address resolution function with its under the communication equipment of mobile communications network link to each other, then each centre of location is linked to each other in twos, can realize location to object UE, simplify structure of mobile communication network greatly, reduced the cost of maintenance and upgrading mobile communications network; When object UE roved different navigation system, the relevant information that object UE is positioned only needed transmit by each centre of location, and need not to transmit between other communication equipments in mobile communications network.
Because the connection link between each centre of location and the specific implementation of mobile communications network are irrelevant, therefore, each navigation system no longer is necessary for the navigation system in the identical standard mobile communications network, only need in mobile communications network, to increase the centre of location on the application layer, in the time of can realizing easily that object UE roves in the various criterion mobile communications network each navigation system, to the location that object UE is carried out, need not existing mobile communications network is improved.
Description of drawings
Fig. 1 is a networking schematic diagram of realizing the location in the 3G mobile communications network;
Fig. 2 is a networking schematic diagram of realizing the location in the 3G2 mobile communications network;
Fig. 3 is for realizing the networking schematic diagram of location among the present invention;
Fig. 4 is for realizing the flow chart of location among the present invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
Among the present invention, the centre of location has address resolution function, with the centre of location with its under the communication equipment of mobile communications network link to each other, then each centre of location is linked to each other in twos, location can be realized, and the roaming of object UE between different navigation systems can be realized object UE.The memory address tabulation makes the centre of location to find the purpose centre of location according to address list in the centre of location, thereby realizes the address resolution function of the centre of location.The centre of location described in the present invention can be functional entity newly-increased in the mobile communications network, also can be the upgrading of positioning equipments such as existing GMLC, MPC.
Fig. 3 is for realizing the networking schematic diagram of location among the present invention, as shown in Figure 3, at object UE 108, if the ownership place centre of location of object UE 108, the location centre of location, and the request ground centre of location of receiving localizing objects UE request is the different centre of location, each centre of location is connected in twos: the ownership place centre of location 303 links to each other with the location centre of location 305, the ownership place centre of location 303 links to each other with the request ground centre of location 301, the location centre of location 305 links to each other with the request ground centre of location 301, the centre of location with its under the communication equipment of mobile communications network be connected to: the request ground centre of location 301 with its under the communication equipment 302 of mobile communications network link to each other, the ownership place centre of location 303 with its under the communication equipment 304 of mobile communications network link to each other, the location centre of location 305 with its under the communication equipment 306 of mobile communications network link to each other.Connected mode between each centre of location can adopt the connected mode of the existing centre of location, and the connected mode between the communication equipment of the centre of location and its affiliated mobile communications network also can adopt the connected mode of the existing centre of location and communication equipment.Above-described communication equipment can be one of them in mobile switching centre (MSC), HLR, HSS, Service Control Point, the privacy archives register equipment such as (PPR), also can be a plurality of combination arbitrarily.
According to above-described networking mode, network between request ground, ownership place and the location connects only needs a link, can realize the roaming of object UE 108 between different navigation systems, and each navigation system no longer is necessary for the navigation system in the identical standard mobile communications network, has simplified structure of mobile communication network greatly.
Fig. 4 as shown in Figure 4, realizes that the process of localizing objects UE may further comprise the steps for realizing the flow chart of location among the present invention:
Step 401~step 402: after the request ground centre of location is received the Location Request of LCS client to object UE, carry out alternately with the communication equipment in the mobile communications network under it, find the ownership place centre of location of object UE and the location centre of location at current place.Described communication equipment belongs to same mobile communications network with the request ground centre of location, and links to each other with the request ground centre of location.
Communication equipment in the request ground centre of location and its affiliated mobile communications network carries out mutual process and can be: request ground centre of location communication equipment in the mobile communications network under it provides the object UE sign, communication equipment identifies according to object UE, the address information of the location centre of location at the ownership place centre of location of object UE and current place is provided to the request ground centre of location, the request ground centre of location finds the ownership place centre of location and the location centre of location according to the address information that self address stored tabulation and the request ground centre of location provide.If communication equipment can't provide the address information of the location centre of location at the ownership place centre of location of object UE and current place to the request ground centre of location, then can further carry out alternately with other communication equipments, obtain the address information of the ownership place centre of location and the location centre of location, offer the request ground centre of location then.
Step 403~step 405: the request ground centre of location sends Location Request to the ownership place centre of location and the location centre of location, after the ownership place centre of location and the location centre of location are received Location Request, separately with affiliated mobile communications network in communication equipment carry out alternately, between the ownership place centre of location and the location centre of location, also can carry out mutual between the ownership place centre of location or the location centre of location and the request ground centre of location, calculate the required related data of object UE positional information thereby obtain, as ephemeris in the satellite fix etc., finally obtain the detail location information of object UE, the detail location information of object UE is provided to LCS client by the request ground centre of location at last.
Because identical to the concrete position fixing process and the prior art of object UE, therefore, the process of localizing objects UE does not elaborate at this.
In addition, the request ground centre of location also can only be searched the location centre of location at the current place of object UE, then subsequent processes is: the request ground centre of location sends Location Request to the location centre of location, after the location centre of location is received Location Request, carry out alternately with the communication equipment in the mobile communications network under it, the location centre of location also can be carried out alternately with the request ground centre of location or the ownership place centre of location, thereby obtains the required related data of localizing objects UE.
The above-described request ground centre of location, the ownership place centre of location can be the different centres of location with the location centre of location, can wherein both or three be the same centre of location also.
In a word, the above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.