CN102026266A - Method and system for collecting positioning auxiliary information - Google Patents
Method and system for collecting positioning auxiliary information Download PDFInfo
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- CN102026266A CN102026266A CN200910172961XA CN200910172961A CN102026266A CN 102026266 A CN102026266 A CN 102026266A CN 200910172961X A CN200910172961X A CN 200910172961XA CN 200910172961 A CN200910172961 A CN 200910172961A CN 102026266 A CN102026266 A CN 102026266A
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Abstract
The invention discloses a method and a system for collecting positioning auxiliary information. A serving base station collects the positioning auxiliary information through an interactive signaling message via an X2 interface, wherein the mutual signaling message can be an expanding X2 interface building request/response message, or an expanding base station configuration update message or a special positioning auxiliary message request/response message. The interactive signaling message carries an auxiliary message with a geographical position message to reliably collect the positioning auxiliary information. In the mode of auxiliary positioning by UE (User Equipment) or the mode of judgment positioning by UE, the invention can obtain the auxiliary messages of a candidate cell required to be measured by the UE, such as the geographical position message, the longitude message and the latitude message of the candidate cell. After collected by the servicing base station, the messages are reported to an E-SMLC (Serving Mobile Location Center) to realize OTDOA (Observed Time Difference Of Arrival) positioning judgment, thereby more precisely carrying out UE positioning.
Description
Technical field
The present invention relates to radio honeycomb communication system, relate in particular to Long Term Evolution (LTE) and Long Term Evolution and strengthen the method and system that are used for the positioning auxiliary information collection in (LTE-A) mobile communication system.
Background technology
LTE (Long Term Evolution, Long Term Evolution) network is by E-UTRAN (EvolvedUTRAN, the universal land radio access web of evolution) base station eNB (Evolved NodeB) and evolution packet switching center EPC (Evolved Packet Core) form, the network flattening.Wherein E-UTRAN comprises the set of the base station eNB that is connected by the S1 interface with EPC, can connect by X2 interface between the eNB, and described S1, X2 are logic interfacing.An EPC can manage one or more eNB, and a base station eNB also can be controlled by a plurality of EPC, and an eNB can manage one or more sub-districts.The LTE-A system is by the LTE system evolved, and the network architecture is consistent with LTE.There is Operational Management System (OAM) in the network architecture simultaneously, can operates and manage one or more network element.
Need a lot of work owing to set up and run a network, such as planning, configuration, optimization, calculating, adjustment, test, guard against false, minimizing failure, self-recovery or the like, this just makes operator that the needs that reduce operation cost and maintenance cost are arranged.On the other hand, the user also needs to simplify the use flow process, and such as family expenses node (Home NodeB) equipment, the user buys promptly wish it is a PnP device back home, and one powers on can obtain configuration operation automatically.Therefore, the trend of next generation mobile networks must be self-configuring, self-optimizing, adaptive network, and human factor is more and more littler to the influence of network, and this has just proposed the self-organizing network notion naturally, and self-organizing network comprises self-configuring and self-optimizing two aspects.In self-optimizing, comprise coverage optimization, mobility optimization, wherein relate to the detection that covers leak in the coverage optimization and cover inadequate detection, mobility optimization then needs the various handover event information that take place in the current area are collected and analyzed, and the location information of terminals when wherein taking place for incident plays an important role to the analysis of above optimization scene.
At present, can adopt mobile positioning technique to obtain location information of terminals in 3G network, widely used mobile positioning technique is current to mainly contain three kinds: based on network cell identification (CELL-ID) location technology, can be observed and reach agps system A-GPS (the AssistedGlobal Positioning System) location technology that time difference OTDOA (Observed Time Difference ofArrival) location technology, network are mixed with terminal.
■ CELL-ID location technology
Based on network CELL-ID location technology is the simplest a kind of location technology, is applicable to all cellular networks, and need not mobile phone and network are made amendment, and just can provide automatic positioning service to current mobile subscriber.This technology is according to the position of determining the user for the residing cellular cell ID of portable terminal number, so its positioning accuracy depends on the size of portable terminal cellular cell radius of living in fully, kilometer do not wait from hundreds of rice to tens.Compare with other technology, this technological investment is less, and the location response time is shorter, and generally in 3s, but its precision is minimum, and error is bigger.
■ OTDOA location technology
OTDOA (Observed Time Difference of Arrival, can be observed reach time difference) is a kind of locate mode that is applied to 3G network.This location technology is measured the due in (TOA, Time of Arrival) of the down-bound pilot frequency signal of different base station and is realized the location by portable terminal, its positioning accuracy is higher, and orientation range is about 100～200m.But the dependence to time reference is stronger, and the influence that disturbed by multipath is also bigger.OTDOA location response time ratio CELL-ID is slightly long, approximately wants 10s.This technology need not mobile phone is made amendment and only need be revised network, can directly provide service to existing user.
■ GPS location technology
A-GPS (Assisted Global Positioning System) is the global positioning system of network assistance, this method needs network and portable terminal can both receive GPS information, be a kind of technology that network base station information and GPS information position portable terminal that combines, can in 2G and 3G network, use.The advantage of this technology is mainly on its positioning accuracy, and in open space such as outdoor, its precision can reach 5～10m under the normal operation circumstances, can be rated as the highest a kind of location technology of present positioning accuracy.On the other hand, the supplementary of utilizing network to transmit can strengthen TTFF (Time To First Fix, primary positioning time), and its time of catching gps signal first reduces greatly, generally only need several seconds, and may need 2～3min unlike the capture time first of GPS.The A-GPS location response time is between 3～10s.
In above-mentioned OTDOA technology, in order to position to current UE, E-SMLC (e-Serving Mobile Location Center, Serving Mobile Location Center) needs to collect relevant auxiliary data, and auxiliary data may be sent to UE, auxiliary data comprises: need the PCI and the GCI of the candidate cell that UE measures, the fiducial time of the relative serving BS of candidate cell is poor, the address location information of candidate cell and/or serving BS.Wherein, specifically send which auxiliary data to UE, depend on the location of which kind of mode of employing, such as the location based on UE, that requires UE to obtain all data exactly, positions calculating by UE; Such as the auxiliary location of UE, only need comprise in the auxiliary data so needs the PCI and the GCI of the candidate cell that UE measures get final product, after UE reports E-SMLC with the information that measures, carries out the UE location Calculation by the auxiliary data that the E-SMLC combination was collected.
In network was realized, how serving BS obtained the relevant supplementary of peripheral base station, and make E-SMLC can make full use of supplementary and carry out terminal positioning, be the content that the present invention will solve.
Summary of the invention
Technical problem to be solved by this invention is, the method and system that provide a kind of positioning auxiliary information to collect make serving BS can obtain the relevant positioning auxiliary information of peripheral base station, so that the positioning auxiliary information that can make full use of is provided to terminal positioning.
In order to address the above problem, the present invention proposes the method that a kind of positioning auxiliary information is collected, wherein:
Positioning auxiliary information is collected by the mutual signaling message of the X2 interface between the base station in the base station, and described mutual signaling message is positioning auxiliary information request message/positioning auxiliary information response message;
When need carry out terminal positioning, determine candidate set, available cell global flag symbol comes unique indication candidate cell, sends the positioning auxiliary information request message that carries the serving BS positioning auxiliary information by X2 interface by the adjoining base station of the serving BS under the terminal to the candidate cell place;
Described adjoining base station returns the positioning auxiliary information response message that carries the adjoining base station positioning auxiliary information by X2 interface to described serving BS.
Further, described candidate set is to be determined by serving BS, or is notified to serving BS after being determined by Serving Mobile Location Center.
Further, described serving BS comprises in the positioning auxiliary information request message that described adjoining base station sends: the global flag symbol of the overall identification ID of serving BS, the candidate cell of acquisition request.
Further, described serving BS also comprises in the positioning auxiliary information request message that described adjoining base station sends: the geographical location information of serving BS, described geographical location information comprise longitude, the latitude information of serving BS.
Further, described adjoining base station comprises in the positioning auxiliary information response message that described serving BS returns: the overall identification ID of adjoining base station, the global flag symbol of the candidate cell of acquisition request and this candidate cell corresponding geographical location information, described geographical location information comprises longitude, the latitude information of candidate cell.
Further, described adjoining base station also comprises in the positioning auxiliary information response message that described serving BS returns: the geographical location information of adjoining base station, described geographical location information comprise longitude, the latitude information of adjoining base station.
Further, described adjoining base station also comprises in the positioning auxiliary information response message that described serving BS returns: the candidate cell of the acquisition request of adjoining base station is with respect to the time difference of serving BS.
Described method further comprises: when needs carried out terminal positioning, the serving BS under the terminal reported Serving Mobile Location Center with the positioning auxiliary information of collecting:
The positioning auxiliary information of being collected by the Serving Mobile Location Center utilization carries out terminal positioning in conjunction with the report measurement information of terminal; Perhaps,
By Serving Mobile Location Center the positioning auxiliary information of collecting is sent to terminal, carry out terminal positioning in conjunction with metrical information and positioning auxiliary information by terminal.
The system that the present invention also provides a kind of positioning auxiliary information to collect, described system comprises the serving BS of terminal, and with the adjoining base station of described serving BS adjacency;
Described serving BS and adjoining base station are collected positioning auxiliary information by the mutual signaling message of the X2 interface between the base station, and described mutual signaling message is positioning auxiliary information request message/positioning auxiliary information response message;
Described serving BS is used for when need carry out terminal positioning, and the adjoining base station at the candidate cell place in determined candidate set sends the positioning auxiliary information request message that carries the serving BS positioning auxiliary information by X2 interface;
Described adjoining base station is used for returning the positioning auxiliary information response message that carries the adjoining base station positioning auxiliary information to described serving BS by X2 interface.
Further, described candidate set is to be determined by serving BS, or is notified to serving BS after being determined by Serving Mobile Location Center.
Further, described serving BS comprises in the positioning auxiliary information request message that described adjoining base station sends: the global flag symbol of the overall identification ID of serving BS, the candidate cell of acquisition request; The geographical location information of serving BS, described geographical location information comprise longitude, the latitude information of serving BS.
Further, described adjoining base station comprises in the positioning auxiliary information response message that described serving BS returns:
The overall identification ID of adjoining base station, the global flag symbol of the candidate cell of acquisition request; And/or,
This candidate cell corresponding geographical location information, described geographical location information comprise longitude, the latitude information of candidate cell; And/or,
The geographical location information of adjoining base station, described geographical location information comprise longitude, the latitude information of base station; And/or,
The candidate cell of the acquisition request of adjoining base station is with respect to the time difference of serving BS.
The method that the present invention also provides another kind of positioning auxiliary information to collect, wherein:
Positioning auxiliary information is collected by the mutual signaling message of the X2 interface between the base station in the base station, and described mutual signaling message is that the X2 interface that expands is set up requests/response messages or base station configuration updating information;
When X2 interface was set up, first base station sent the X2 interface that has positioning auxiliary information to second base station and sets up request message, and described second base station is returned the X2 interface that has positioning auxiliary information to first base station and set up response message;
After first base station configuration information changed, first base station sent the base station configuration updating information that has positioning auxiliary information to second base station.
Further, the X2 interface of described expansion is set up the positioning auxiliary information that carries in requests/response messages or the base station configuration updating information and comprised: the geographical location information of the Serving cell that increases in the described service cell information in base station, described geographical location information comprise longitude, the latitude information of Serving cell.
Further, the X2 interface of described expansion is set up the positioning auxiliary information that carries in requests/response messages or the base station configuration updating information and further comprised: the geographical location information of the adjacent area that increases in the neighboring BS information of Serving cell under the base station, described geographical location information comprises longitude, the latitude information of adjacent area.
Further, the X2 interface of described expansion is set up the positioning auxiliary information that carries in requests/response messages or the base station configuration updating information and further comprised: base station geographic position information, described geographical location information comprise longitude, the latitude information of base station.
Described method further comprises: when needs carry out terminal positioning, first base station under the terminal or second base station are as serving BS, the positioning auxiliary information of collecting is reported Serving Mobile Location Center, and the positioning auxiliary information of being collected by the Serving Mobile Location Center utilization carries out terminal positioning in conjunction with the report measurement information of terminal; Perhaps the positioning auxiliary information of collecting is sent to terminal, carry out terminal positioning in conjunction with metrical information and positioning auxiliary information by terminal by Serving Mobile Location Center.
Described method further comprises: the described second base station X2 interface is set up failure, then to first base station return carry failure cause set up failure response message, the base station configuration updating information failure of first base station is handled in perhaps described second base station, then returns the renewal failure response message that carries failure cause to first base station.
The system that the present invention also provides a kind of positioning auxiliary information to collect, described system comprises first base station and second base station, positioning auxiliary information is collected by the mutual signaling message of the X2 interface between the base station in described first, second base station, and described mutual signaling message is that the X2 interface that expands is set up requests/response messages or base station configuration updating information;
Described first base station is used for when X2 interface is set up, and sends the X2 interface that has positioning auxiliary information to second base station and sets up request message; Described second base station is returned the X2 interface that has positioning auxiliary information to first base station and is set up response message;
Described first base station also is used for after first base station configuration information changes, and sends the base station configuration updating information that has positioning auxiliary information to second base station.
Further, the X2 interface of described expansion is set up the positioning auxiliary information that carries in requests/response messages or the base station configuration updating information and is comprised:
The geographical location information of the Serving cell that increases in the service cell information under the base station, described geographical location information comprises longitude, the latitude information of Serving cell; And/or
The geographical location information of the adjacent area that increases in the neighboring BS information of Serving cell under the base station, described geographical location information comprises longitude, the latitude information of adjacent area; And/or
Base station geographic position information, described geographical location information comprise longitude, the latitude information of base station.
The method and system that positioning auxiliary information of the present invention is collected, can be in the OTDOA location technology, position the collection of supplementary by the mutual signaling message of X2 interface utilization based on serving BS, described mutual signaling message, can be that the X2 interface that expands is set up requests/response messages, the perhaps base station configuration updating information of Kuo Chonging, it also can be special positioning auxiliary information requests/response messages, in above-mentioned mutual signaling message, carry the supplementary that has geographical location information, realize the reliable collection of positioning auxiliary information.The mode that no matter is the UE assist location also is based under the locate mode of UE judgement, all need to get access to the supplementary of the candidate cell that UE need measure, geographical location information such as candidate cell, such as longitude, latitude information, by reporting E-SMLC after the unified collection of serving BS, realize the judgement of OTDOA location, carry out the UE location more exactly.
Description of drawings
Fig. 1 is specific embodiment one a flow process schematic diagram;
Fig. 2 is specific embodiment two flow process schematic diagrames;
Fig. 3 is specific embodiment three schematic flow sheets;
Fig. 4 is supplementary request message structure figure;
Fig. 5 is a supplementary response message structure chart.
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.
Positioning auxiliary information gathering method of the present invention and system, can position the collection of supplementary by X2 interface, and report E-SMLC, estimate the position of terminal according to supplementary in conjunction with measurement report by E-SMLC/UE, can help solving problems such as coverage optimization, mobility optimization by location terminal.In the OTDOA technology, obtain longitude, the latitude information of the candidate cell and/or the serving BS of UE location survey by X 2 interface between base stations by serving BS, serving BS reported E-SMLC after collecting this information, E-SMLC can make full use of the supplementary of collecting, and carries out the UE location in conjunction with the report measurement information of UE; Perhaps E-SMLC can send to UE with the supplementary of collecting, and carries out the UE location by UE in conjunction with metrical information and supplementary.
The method that first kind of positioning auxiliary information of the present invention collected is as follows:
Positioning auxiliary information is collected by the mutual signaling message of the X2 interface between the base station in the base station, and described mutual signaling message is that the X2 interface that expands is set up requests/response messages or base station configuration updating information;
When X2 interface was set up, first base station sent the X2 interface that has positioning auxiliary information to second base station and sets up request message, and described second base station is returned the X2 interface that has positioning auxiliary information to first base station and set up response message;
After first base station configuration information changed, first base station sent the base station configuration updating information that has positioning auxiliary information to second base station.
The X2 interface of described expansion is set up the positioning auxiliary information that carries in requests/response messages or the base station configuration updating information and comprised: the geographical location information of the Serving cell that increases in the described service cell information in base station, described geographical location information comprise longitude, the latitude information of Serving cell.
The X2 interface of described expansion is set up the positioning auxiliary information that carries in requests/response messages or the base station configuration updating information and further comprised: the geographical location information of the adjacent area that increases in the neighboring BS information of Serving cell under the base station, described geographical location information comprises longitude, the latitude information of adjacent area.
The X2 interface of described expansion is set up the positioning auxiliary information that carries in requests/response messages or the base station configuration updating information and further comprised: base station geographic position information, described geographical location information comprise longitude, the latitude information of base station.
Described method further comprises: when needs carry out terminal positioning, first base station under the terminal or second base station are as serving BS, the positioning auxiliary information of collecting is reported Serving Mobile Location Center E-SMLC, utilize the positioning auxiliary information collected to carry out terminal positioning by Serving Mobile Location Center E-SMLC in conjunction with the report measurement information of terminal; Perhaps the positioning auxiliary information of collecting is sent to terminal, carry out terminal positioning in conjunction with metrical information and positioning auxiliary information by terminal by Serving Mobile Location Center E-SMLC.
Described method further comprises: the described second base station X2 interface is set up failure, then to first base station return carry failure cause set up failure response message, the base station configuration updating information failure of first base station is handled in perhaps described second base station, then returns the renewal failure response message that carries failure cause to first base station.
Based on first kind of locating information gathering method, the system that the present invention also provides a kind of positioning auxiliary information to collect, described system comprises first base station and second base station, positioning auxiliary information is collected by the mutual signaling message of the X2 interface between the base station in described first, second base station, and described mutual signaling message is that the X2 interface that expands is set up requests/response messages or base station configuration updating information;
Described first base station is used for when X2 interface is set up, and sends the X2 interface that has positioning auxiliary information to second base station and sets up request message; Described second base station is returned the X2 interface that has positioning auxiliary information to first base station and is set up response message;
Described first base station also is used for after first base station configuration information changes, and sends the base station configuration updating information that has positioning auxiliary information to second base station.
The X2 interface of described expansion is set up the positioning auxiliary information that carries in requests/response messages or the base station configuration updating information and is comprised:
The geographical location information of the Serving cell that increases in the service cell information under the base station, described geographical location information comprises longitude, the latitude information of Serving cell;
The geographical location information of the adjacent area that increases in the neighboring BS information of Serving cell under the base station, described geographical location information comprises longitude, the latitude information of adjacent area;
Base station geographic position information, described geographical location information comprise longitude, the latitude information of base station.
The method that second kind of positioning auxiliary information of the present invention collected is as follows:
Positioning auxiliary information is collected by the mutual signaling message of the X2 interface between the base station in the base station, and described mutual signaling message is positioning auxiliary information request message/positioning auxiliary information response message;
When need carry out terminal positioning, determine candidate set, available cell global flag symbol comes unique indication candidate cell, sends the positioning auxiliary information request message that carries the serving BS positioning auxiliary information by X2 interface by the adjoining base station of the serving BS under the terminal to the candidate cell place;
Described adjoining base station returns the positioning auxiliary information response message that carries the adjoining base station positioning auxiliary information by X2 interface to described serving BS.
Further, described candidate set is to be determined by serving BS, or is notified to serving BS after being determined by Serving Mobile Location Center.
Further, described serving BS comprises in the positioning auxiliary information request message that described adjoining base station sends: the global flag symbol of the overall identification ID of serving BS, the candidate cell of acquisition request;
Further, described serving BS also comprises in the positioning auxiliary information request message that described adjoining base station sends: the geographical location information of serving BS, described geographical location information comprises longitude, latitude information.
Further, described adjoining base station comprises in the positioning auxiliary information response message that described serving BS returns: the overall identification ID of adjoining base station, the global flag symbol of the candidate cell of acquisition request and this candidate cell corresponding geographical location information, described geographical location information comprises longitude, the latitude information of candidate cell.
Further, described adjoining base station also comprises in the positioning auxiliary information response message that described serving BS returns: the geographical location information of adjoining base station, described geographical location information comprise longitude, the latitude information of base station.
Further, described adjoining base station also comprises in the positioning auxiliary information response message that described serving BS returns: the candidate cell of the acquisition request of adjoining base station is with respect to the time difference of serving BS.
Described method further comprises: when needs carry out terminal positioning, serving BS under the terminal, the positioning auxiliary information of collecting is reported Serving Mobile Location Center E-SMLC, utilize the positioning auxiliary information collected to carry out terminal positioning by Serving Mobile Location Center E-SMLC in conjunction with the report measurement information of terminal; Perhaps the positioning auxiliary information of collecting is sent to terminal, carry out terminal positioning in conjunction with metrical information and positioning auxiliary information by terminal by Serving Mobile Location Center E-SMLC.
Described method further comprises, if described adjoining base station is handled described positioning auxiliary information request message failure, then sends supplementary and collects the response failed message to serving BS, and the portability failure cause.
Based on described second kind of positioning auxiliary information gathering method, the system that the present invention also provides a kind of positioning auxiliary information to collect, described system comprises the serving BS of terminal, and with the adjoining base station of described serving BS adjacency, described serving BS and adjoining base station are collected positioning auxiliary information by the mutual signaling message of the X2 interface between the base station, and described mutual signaling message is positioning auxiliary information request message/positioning auxiliary information response message;
Described serving BS is used for when need carry out terminal positioning, and the adjoining base station at the candidate cell place in determined candidate set sends the positioning auxiliary information request message that carries the serving BS positioning auxiliary information by X2 interface;
Described adjoining base station is used for returning the positioning auxiliary information response message that carries the adjoining base station positioning auxiliary information to described serving BS by X2 interface.
Further, described candidate set is to be determined by serving BS, or is notified to serving BS after being determined by Serving Mobile Location Center.
Further, described serving BS comprises in the positioning auxiliary information request message that described adjoining base station sends:
The global flag symbol of the overall identification ID of serving BS, the candidate cell of acquisition request;
The geographical location information of serving BS, described geographical location information comprises longitude, latitude information;
Further, described adjoining base station comprises in the positioning auxiliary information response message that described serving BS returns:
The overall identification ID of adjoining base station, the global flag symbol of the candidate cell of acquisition request and this candidate cell corresponding geographical location information, described geographical location information comprises longitude, the latitude information of candidate cell;
The geographical location information of adjoining base station, described geographical location information comprise longitude, the latitude information of base station.
The candidate cell of the acquisition request of adjoining base station is with respect to the time difference of serving BS.
The present invention positions the specific embodiment one that supplementary is collected in the LTE/LTE-A system, may further comprise the steps, as shown in Figure 1:
When step 11:eNB1 and eNB2 set up X2 interface, eNB1 sends X2 to eNB2 and sets up request message, the information that comprises all Serving cells under the eNB1 in this message increases the Serving cell geographical location information, such as longitude, the latitude information of this Serving cell in this service cell information; Further, also can expand the neighboring BS information of the affiliated Serving cell in base station, increase the geographical location information of adjacent area, such as longitude, latitude information; Further, also can comprise the geographical location information of base station, comprise longitude, the latitude information of base station, this information is passed to eNB2;
Step 12:eNB2 receives that X2 sets up request, if success sends X2 to eNB1 and sets up response message, comprise the information of all Serving cells under the eNB2 in this response message, in this service cell information, increase the Serving cell geographical location information, such as longitude, the latitude information of this Serving cell; Further, also can expand the neighboring BS information of the affiliated Serving cell in base station, increase the geographical location information of adjacent area, such as longitude, latitude information; Further, also can comprise the geographical location information of base station, comprise longitude, the latitude information of base station, this response message is passed to eNB1.If step 13 is then changeed in failure;
Step 13:eNB2 sends X2 and sets up failed message to eNB1, wherein carries failure cause.
The present invention positions the specific embodiment two that supplementary is collected in the LTE/LTE-A system, may further comprise the steps, as shown in Figure 2:
When the base station configuration information change takes place in step 21:eNB1, such as the information-change of Serving cell, the neighbor cell of information change of Serving cell, the MME POOL information-change under the base station etc., eNB1 sends base station configuration updating information to eNB2, the information that comprises all Serving cells under the eNB1 in this base station configuration updating information, in this service cell information, increase the Serving cell geographical location information, such as longitude, the latitude information of this Serving cell; Further, also can expand the neighboring BS information of the affiliated Serving cell in base station, increase the geographical location information of adjacent area, such as longitude, latitude information; Further, also can comprise the geographical location information of base station, comprise longitude, the latitude information of base station, this information is passed to eNB2;
After step 22:eNB2 receives base station configuration updating information,, then send the base station configuration updating acknowledge message to eNB1 if handle successfully, otherwise, step 23 changeed;
Step 23:eNB2 sends the base station configuration updating failed message to eNB1, wherein carries failure cause.
The present invention positions the specific embodiment three that supplementary is collected in the LTE/LTE-A system, may further comprise the steps, as shown in Figure 3:
Step 31:eNB1 is the serving BS at current UE place, and eNB1 recognizes the supplementary of the candidate set of the required collection of current base station, eNB1 sends the positioning auxiliary information request message for the eNB2 at candidate cell place, as shown in Figure 4, the Global ID that comprises the base station in this request message, the global flag symbol of the candidate cell of acquisition request, further, the geographical location information that also can comprise serving BS comprises longitude, the latitude information of serving BS.This positioning auxiliary information request message is passed to eNB2;
Step 32:eNB2 receives the positioning auxiliary information request message, if success, send the positioning auxiliary information response message to eNB1, as shown in Figure 5, the Global ID that comprises adjoining base station in this response message, the global flag symbol of the candidate cell of acquisition request and this candidate cell corresponding geographical location information, the longitude, the latitude information that comprise candidate cell, the geographical location information that also can comprise the base station, the longitude, the latitude information that comprise the base station, the candidate cell of acquisition request that also can comprise adjoining base station is with respect to time difference of serving BS.This positioning auxiliary information response message is passed to eNB1.If step 33 is then changeed in failure;
Step 33:eNB2 sends positioning auxiliary information response failed message to eNB1, wherein carries failure cause.
Positioning auxiliary information gathering method of the present invention and system, can position the collection of supplementary by X2 interface, during collection, can adopt the mode of prior collection between the base station, to transmit positioning auxiliary information, for example when X2 interface is set up or when base station configuration information is upgraded, also can when the needs terminal positioning, send special request by serving BS to candidate cell place adjoining base station and obtain corresponding positioning auxiliary information.After obtaining positioning auxiliary information, supplementary is reported E-SMLC, estimate the position of terminal according to supplementary in conjunction with measurement report by E-SMLC/UE, can help solving problems such as coverage optimization, mobility optimization by location to terminal.
The above is embodiments of the invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present invention.
Claims (20)
1. the method that positioning auxiliary information is collected is characterized in that,
Positioning auxiliary information is collected by the mutual signaling message of the X2 interface between the base station in the base station, and described mutual signaling message is positioning auxiliary information request message/positioning auxiliary information response message;
When need carry out terminal positioning, determine candidate set, available cell global flag symbol comes unique indication candidate cell, sends the positioning auxiliary information request message that carries the serving BS positioning auxiliary information by X2 interface by the adjoining base station of the serving BS under the terminal to the candidate cell place;
Described adjoining base station returns the positioning auxiliary information response message that carries the adjoining base station positioning auxiliary information by X2 interface to described serving BS.
2. the method for claim 1 is characterized in that,
Described candidate set is to be determined by serving BS, or is notified to serving BS after being determined by Serving Mobile Location Center.
3. the method for claim 1 is characterized in that,
Described serving BS comprises in the positioning auxiliary information request message that described adjoining base station sends: the global flag symbol of the overall identification ID of serving BS, the candidate cell of acquisition request.
4. method as claimed in claim 3 is characterized in that,
Described serving BS also comprises in the positioning auxiliary information request message that described adjoining base station sends: the geographical location information of serving BS, described geographical location information comprise longitude, the latitude information of serving BS.
5. the method for claim 1 is characterized in that,
Described adjoining base station comprises in the positioning auxiliary information response message that described serving BS returns: the overall identification ID of adjoining base station, the global flag symbol of the candidate cell of acquisition request and this candidate cell corresponding geographical location information, described geographical location information comprises longitude, the latitude information of candidate cell.
6. method as claimed in claim 5 is characterized in that,
Described adjoining base station also comprises in the positioning auxiliary information response message that described serving BS returns: the geographical location information of adjoining base station, described geographical location information comprise longitude, the latitude information of adjoining base station.
7. method as claimed in claim 6 is characterized in that,
Described adjoining base station also comprises in the positioning auxiliary information response message that described serving BS returns: the candidate cell of the acquisition request of adjoining base station is with respect to the time difference of serving BS.
8. as each described method in the claim 1 to 7, it is characterized in that,
Described method further comprises: when needs carried out terminal positioning, the serving BS under the terminal reported Serving Mobile Location Center with the positioning auxiliary information of collecting:
The positioning auxiliary information of being collected by the Serving Mobile Location Center utilization carries out terminal positioning in conjunction with the report measurement information of terminal; Perhaps,
By Serving Mobile Location Center the positioning auxiliary information of collecting is sent to terminal, carry out terminal positioning in conjunction with metrical information and positioning auxiliary information by terminal.
9. the system that collects of a positioning auxiliary information is characterized in that described system comprises the serving BS of terminal, and with the adjoining base station of described serving BS adjacency;
Described serving BS and adjoining base station are collected positioning auxiliary information by the mutual signaling message of the X2 interface between the base station, and described mutual signaling message is positioning auxiliary information request message/positioning auxiliary information response message;
Described serving BS is used for when need carry out terminal positioning, and the adjoining base station at the candidate cell place in determined candidate set sends the positioning auxiliary information request message that carries the serving BS positioning auxiliary information by X2 interface;
Described adjoining base station is used for returning the positioning auxiliary information response message that carries the adjoining base station positioning auxiliary information to described serving BS by X2 interface.
10. system as claimed in claim 9 is characterized in that,
Described candidate set is to be determined by serving BS, or is notified to serving BS after being determined by Serving Mobile Location Center.
11. system as claimed in claim 9 is characterized in that, described serving BS comprises in the positioning auxiliary information request message that described adjoining base station sends:
The global flag symbol of the overall identification ID of serving BS, the candidate cell of acquisition request;
The geographical location information of serving BS, described geographical location information comprise longitude, the latitude information of serving BS.
12. system as claimed in claim 11 is characterized in that, described adjoining base station comprises in the positioning auxiliary information response message that described serving BS returns:
The overall identification ID of adjoining base station, the global flag symbol of the candidate cell of acquisition request; And/or,
This candidate cell corresponding geographical location information, described geographical location information comprise longitude, the latitude information of candidate cell; And/or,
The geographical location information of adjoining base station, described geographical location information comprise longitude, the latitude information of base station; And/or,
The candidate cell of the acquisition request of adjoining base station is with respect to the time difference of serving BS.
13. the method that positioning auxiliary information is collected is characterized in that,
Positioning auxiliary information is collected by the mutual signaling message of the X2 interface between the base station in the base station, and described mutual signaling message is that the X2 interface that expands is set up requests/response messages or base station configuration updating information;
When X2 interface was set up, first base station sent the X2 interface that has positioning auxiliary information to second base station and sets up request message, and described second base station is returned the X2 interface that has positioning auxiliary information to first base station and set up response message;
After first base station configuration information changed, first base station sent the base station configuration updating information that has positioning auxiliary information to second base station.
14. method as claimed in claim 13 is characterized in that,
The X2 interface of described expansion is set up the positioning auxiliary information that carries in requests/response messages or the base station configuration updating information and comprised: the geographical location information of the Serving cell that increases in the described service cell information in base station, described geographical location information comprise longitude, the latitude information of Serving cell.
15. method as claimed in claim 14 is characterized in that,
The X2 interface of described expansion is set up the positioning auxiliary information that carries in requests/response messages or the base station configuration updating information and further comprised: the geographical location information of the adjacent area that increases in the neighboring BS information of Serving cell under the base station, described geographical location information comprises longitude, the latitude information of adjacent area.
16. method as claimed in claim 15 is characterized in that,
The X2 interface of described expansion is set up the positioning auxiliary information that carries in requests/response messages or the base station configuration updating information and further comprised: base station geographic position information, described geographical location information comprise longitude, the latitude information of base station.
17. as each described method in the claim 13 to 16, it is characterized in that,
Described method further comprises: when needs carry out terminal positioning, first base station under the terminal or second base station are as serving BS, the positioning auxiliary information of collecting is reported Serving Mobile Location Center, and the positioning auxiliary information of being collected by the Serving Mobile Location Center utilization carries out terminal positioning in conjunction with the report measurement information of terminal; Perhaps the positioning auxiliary information of collecting is sent to terminal, carry out terminal positioning in conjunction with metrical information and positioning auxiliary information by terminal by Serving Mobile Location Center.
18. as each described method in the claim 13 to 16, it is characterized in that,
Described method further comprises: the described second base station X2 interface is set up failure, then to first base station return carry failure cause set up failure response message, the base station configuration updating information failure of first base station is handled in perhaps described second base station, then returns the renewal failure response message that carries failure cause to first base station.
19. the system that positioning auxiliary information is collected is characterized in that,
Described system comprises first base station and second base station, positioning auxiliary information is collected by the mutual signaling message of the X2 interface between the base station in described first, second base station, and described mutual signaling message is that the X2 interface that expands is set up requests/response messages or base station configuration updating information;
Described first base station is used for when X2 interface is set up, and sends the X2 interface that has positioning auxiliary information to second base station and sets up request message; Described second base station is returned the X2 interface that has positioning auxiliary information to first base station and is set up response message;
Described first base station also is used for after first base station configuration information changes, and sends the base station configuration updating information that has positioning auxiliary information to second base station.
20. system as claimed in claim 19 is characterized in that,
The X2 interface of described expansion is set up the positioning auxiliary information that carries in requests/response messages or the base station configuration updating information and is comprised:
The geographical location information of the Serving cell that increases in the service cell information under the base station, described geographical location information comprises longitude, the latitude information of Serving cell; And/or
The geographical location information of the adjacent area that increases in the neighboring BS information of Serving cell under the base station, described geographical location information comprises longitude, the latitude information of adjacent area; And/or
Base station geographic position information, described geographical location information comprise longitude, the latitude information of base station.
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