CN103024757B - LMU systems of selection and device - Google Patents

LMU systems of selection and device Download PDF

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Publication number
CN103024757B
CN103024757B CN201110284182.6A CN201110284182A CN103024757B CN 103024757 B CN103024757 B CN 103024757B CN 201110284182 A CN201110284182 A CN 201110284182A CN 103024757 B CN103024757 B CN 103024757B
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lmu
base station
serving
smlc
information
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CN103024757A (en
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黄莹
奚进
祝建建
吴蕴璐
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ZTE Corp
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ZTE Corp
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Abstract

The invention discloses LMU systems of selection and device, LMU systems of selection include:E SMLC receive the LMU auxiliary informations that sided access network element is sent;E SMLC select the LMU for participating in UE this positioning action to gather according to LMU auxiliary informations.It can solve the problem that E SMLC just know that service UE base station and cell ID using the present invention, not can know that UE Position Approximate, the problem of being measured with the LMU for selecting neighbouring UE.

Description

LMU systems of selection and device
Technical field
The present invention relates to the communications field, in particular to LMU systems of selection and device.
Background technology
UTDOA (Uplink Time Difference Of Arrival, up-link timesharing is reached) is one kind with evolution Serving mobile centre based on, (eNB-assisted, E-SMLC (the Enhanced Serving Mobile supplemented by base station Location Centre, the serving mobile centre of evolution) Based) localization method.In UTDOA systems, LMU (Location Measurement Unit, location measurement unit) measurement operation is performed, E-SMLC obtains progress location Calculation after measurement result and obtained To UE (User Equipment, user equipment) positional information.
Specifically, E-SMLC is received after Location Request, request serving BS is UE configuration SRS (Sounding Reference Signal, sounding reference signal) parameter, serving BS by the SRS configuration parameters with informing E- after the completion of postponing SMLC.SRS configuration parameters are sent to multiple different LMU by E-SMLC again, and the SRS that multiple LMU are sent according to E-SMLC, which is configured, to join Number receives the uplink SRS reference signal that UE is sent simultaneously, and receiving time information is sent into E-SMLC, and E-SMLC is according to difference LMU receives the SRS time differences to UE progress location Calculations.
By LPPa, (LTE Positioning Protocol Annex, long evolving system is fixed between base station and E-SMLC Position Additional Agreement) communicated, LMU and E-SMLC passes through LMUp (Location Measuring Unit Protocol, position Measuring unit agreement) communicated.LMU has two types:Independent LMU entities (Stand-alone) or integrated LMU (integrated is integrated in base station).Normally, Stand-alone LMU and base station are co-located (that is, both common antenna). Integrated LMU shares radio-cell and antenna with base station.LMU is probably independent logical ne or base is connected or be integrated in base station Stand.In transparent (transparent) framework, between Stand-alone LMU and integrated LMU and E-SMLC LMUp agreements are all set up by SLm interfaces;And in mixing (hybrid) framework, between Stand-alone LMU and E-SMLC LMUp agreements set up by SLm interfaces, the LMUp agreements between integrated LMU and E-SMLC are built by LPPa interfaces It is vertical.In UTDOA methods, LPPa agreements can be used for transferring auxiliary data, can be used for the base of integrated LMU under hybrid frameworks Stand and transmit measurement result to E-SMLC;LMUp agreements are used for LMU and transmit measurement result to E-SMLC, it can also be used to which transmitting LMU has Close information (for example, link monitoring).
Fig. 1 describes the framework of UTDOA alignment systems, in UTDOA systems, for same Location Request, multiple LMU Measurement operation is performed simultaneously and measurement result is sent to E-SMLC, and E-SMLC obtains progress location Calculation after measurement result and obtained UE positional information.LMU can be divided into independent LMU and integrated LMU two types.Independent LMU may be and integrated with base station shared antenna LMU is integrated in base station.(Mobility Management Entity, mobile management is real by SLs interfaces and MME by E-SMLC Body) connect, MME is connected by S1 interfaces with base station, then the LPPa protocol messages interacted between E-SMLC and base station are connected by the SLs Connect and S1 connections transmission.Integrated LMU can set up LPPa with E-SMLC and be connected or SLm connections, and independent LMU can be built with E-SMLC Vertical SLm connections, the then LMUp protocol messages interacted between E-SMLC and LMU can be transmitted by SLm connections or LPPa connections.
In summary, E-SMLC needs to know LMU geographical topology information, such as geographical location information, affiliated base station Or affiliated cell information, could be the LMU set that UE selections participate in this positioning action.Because E-SMLC is positioning service Device, the geographical location information that may do not have base station, if therefore E-SMLC just know that service UE base station and cell ID, not UE Position Approximate is can know that, to select neighbouring UE LMU to measure.
Service UE base station and cell ID is just known that for E-SMLC in correlation technique, UE big position approximate is not can know that Put, the problem of being measured with the LMU for selecting neighbouring UE not yet proposes effective solution at present.
The content of the invention
It is a primary object of the present invention to provide LMU systems of selection and device, just known that with least solving above-mentioned E-SMLC UE base station and cell ID is serviced, UE Position Approximate is not can know that, with asking that the LMU for selecting neighbouring UE is measured Topic.
According to an aspect of the invention, there is provided a kind of LMU systems of selection, including:The serving mobile centre E- of evolution SMLC receives the LMU auxiliary informations that sided access network element is sent;The E-SMLC participates in user according to LMU auxiliary informations selection The LMU set of this positioning action of equipment UE.
It is preferred that, the E-SMLC is received after the LMU auxiliary informations that sided access network element is sent, in addition to:The LMU is auxiliary When supplementary information changes, the E-SMLC receives the LMU auxiliary informations after changing, and is aided according to the LMU after the change Information selects the LMU set.
It is preferred that, when the sided access network element includes serving BS, the LMU auxiliary informations include:The serving BS On LMU information and service location information of cell;Or LMU information on the serving BS, the serving BS is adjacent LMU information and service location information of cell on base station.
It is preferred that, the serving cell positional information includes:The global position system GPS position letter of the serving cell Breath.
It is preferred that, the LMU information on the serving BS includes:The Base Station Identification eNB ID of the serving BS;It is described The ECGI of serving cell;The LMU ID of LMU on the serving BS;LMU information on the adjacent base station includes:The phase The eNB ID of adjacent base station;The LMU ID of LMU on the adjacent base station.
It is preferred that, when the LMU auxiliary informations include the LMU information on the adjacent base station of the serving BS, the E- SMLC is received before the LMU auxiliary informations that the serving BS is sent, in addition to:The adjacent base station will by X2 interface message LMU information on the adjacent base station is sent to the serving BS;Wherein, the X2 interface message include it is following at least it One:X2 sets up request message, X2 and sets up response message and newly-increased X2 interface message.
It is preferred that, the LMU information on the adjacent base station is sent to described by the adjacent base station by X2 interface message After serving BS, in addition to:If the LMU information on the adjacent base station changes, the adjacent base station passes through X2 interface LMU information on the adjacent base station after renewal is informed the serving BS by message;Wherein, the X2 interface message includes It is at least one following:Base station configuration updating information and newly-increased X2 interface message.
It is preferred that, the E-SMLC receives the LMU auxiliary informations that the serving BS is sent, including:The E-SMLC to The serving BS sends information request message;The E-SMLC receives the info response message that the serving BS is returned, its In, it is the SRS parameters and the LMU auxiliary informations that the UE is configured that the serving BS is carried in described information response message.
It is preferred that, the E-SMLC receives the LMU auxiliary informations that sided access network element is sent, including:The E-SMLC is received The LMU auxiliary informations on the base station that base station is sent, wherein, the base station includes the serving BS and the serving BS Adjacent base station;Or the E-SMLC receives the LMU auxiliary informations of itself that LMU is sent.
It is preferred that, the E-SMLC is received after the LMU auxiliary informations that sided access network element is sent, and the E-SMLC is according to institute Before the LMU set for stating this positioning action that the selection of LMU auxiliary informations participates in UE, in addition to:The E-SMLC receives service The eNB ID lists of the adjacent base station for the serving BS that base station is sent;The E-SMLC is selected according to the LMU auxiliary informations The LMU set for this positioning action for participating in UE is selected, including:The E-SMLC is according to LMU auxiliary informations and described adjacent The eNB ID lists of base station select the LMU set.
It is preferred that, the E-SMLC receives the LMU auxiliary informations on the base station that base station is sent, including:The E- SMLC receives the LMU auxiliary informations on the base station that the base station is sent by LPPa interface messages;Wherein, the LPPa connects Mouth message includes at least one following:LPPa sets up request message and newly-increased LPPa interface messages.
It is preferred that, the LMU auxiliary informations on the base station include:The eNB ID of the base station;The base station and ownership institute State the geographical location information of the cell of base station;Belong to the ECGI of the cell of the base station;The LMU ID of LMU on the base station.
It is preferred that, the geographical location information of the cell of the base station includes GPS position information.
It is preferred that, the E-SMLC receives the LMU auxiliary informations of itself that the LMU is sent, including:The LMU passes through The LMU auxiliary informations of its own are sent to the E-SMLC by SLm interface messages;Wherein, the SLm interface messages include following At least one:SLm sets up request message and newly-increased SLm interface messages.
It is preferred that, the LMU auxiliary informations of itself that the LMU is sent, including:The LMU ID of the LMU;The LMU's LMU geographical location information;The eNB ID of the LMU own base stations;The ECGI of the LMU affiliated subdistricts.
It is preferred that, the LMU geographical location information includes GPS position information.
It is preferred that, the LMU auxiliary informations on the base station are sent to after the E-SMLC by the base station, in addition to: When LMU auxiliary informations on the base station change, the base station is by LPPa interface messages by the base station after renewal On LMU auxiliary informations inform the E-SMLC;Wherein, the LPPa interface messages include at least one following:LPPa is set up Request message and newly-increased LPPa interface messages;Or the LMU auxiliary informations of its own are sent to the E-SMLC by the LMU Afterwards, in addition to:When the LMU itself LMU auxiliary informations change, after the LMU will be updated by SLm interface messages The LMU itself LMU auxiliary informations inform the E-SMLC;Wherein, the SLm interface messages include it is following at least it One:SLm sets up request message and newly-increased SLm interface messages.
It is preferred that, the E-SMLC receives the eNB ID row of the adjacent base station for the serving BS that serving BS is sent Table, including:The E-SMLC sends information request message to the serving BS;The E-SMLC receives the serving BS and led to Cross the eNB ID lists of the adjacent base station of the serving BS of info response message transmission.
According to another aspect of the present invention there is provided a kind of LMU selection devices, it is arranged in E-SMLC, including:First Receiving module, the LMU auxiliary informations for receiving sided access network element transmission;First choice module, for being aided according to the LMU Information selection participates in the LMU set of this positioning action of user equipment (UE).
According to another aspect of the present invention there is provided a kind of LMU selection devices, the Service Mobile Location of evolution is arranged on In the E-SMLC of center, including:Second receiving module, the LMU auxiliary informations for receiving sided access network element transmission, wherein, receive Entering side network element includes base station and/or LMU, and base station includes the adjacent base station of serving BS and serving BS;3rd receiving module, is used In sending after location service request message, the Base Station Identification eNB ID of the adjacent base station for the serving BS that serving BS is sent are received List;Second selecting module, for participating in using according to the eNB ID lists of the LMU auxiliary informations and adjacent base station selection The LMU set of this positioning action of family equipment UE.
In embodiments of the present invention, the LMU auxiliary informations selection that E-SMLC is sent according to sided access network element participates in UE sheet The LMU set of secondary positioning action, i.e. make use of the LMU auxiliary informations of extraneous sided access network element transmission, auxiliary E-SMLC selections LMU, can be measured in subsequent applications using the LMU in the LMU set of selection, rather than arbitrarily select LMU, using this The LMU of inventive method selection, more adjacent to UE, can more accurately carry out UE positioning measurement relative to other LMU.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this hair Bright schematic description and description is used to explain the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the UTDOA system architecture schematic diagrams according to correlation technique;
Fig. 2 is the process chart of LMU systems of selection according to embodiments of the present invention;
Fig. 3 is the handling process that E-SMLC according to embodiments of the present invention receives the LMU auxiliary informations that serving BS is sent Figure;
Fig. 4 is the general flow chart of the LMU systems of selection of embodiment one according to embodiments of the present invention;
Fig. 5 be embodiment two according to embodiments of the present invention LMU auxiliary informations in include adjacent base station on LMU auxiliary The flow chart of the LMU systems of selection of information;
Fig. 6 is that the LMU auxiliary informations of embodiment three according to embodiments of the present invention include LMU auxiliary letter on adjacent base station The flow chart of the LMU systems of selection of breath;
Fig. 7 is the renewal that LMU auxiliary informations change on the adjacent base station of example IV according to embodiments of the present invention Flow chart;
Fig. 8 is the handling process that E-SMLC according to embodiments of the present invention receives the LMU auxiliary informations of itself that LMU is sent Figure;
Fig. 9 is the general flow chart of the LMU systems of selection of embodiment five according to embodiments of the present invention;
Figure 10 is that the E-SMLC of embodiment six according to embodiments of the present invention receives the processing of LMU auxiliary informations from base station Flow chart;
Figure 11 is the more new technological process that LMU auxiliary informations change on the base station of embodiment seven according to embodiments of the present invention Figure;
Figure 12 is that the E-SMLC of embodiment eight according to embodiments of the present invention receives the processing of LMU auxiliary informations at LMU Flow chart;
Figure 13 is the LMU of the embodiment nine according to embodiments of the present invention renewal that changes of itself LMU auxiliary information Flow chart;
Figure 14 is the structured flowchart of the first LMU selection device according to embodiments of the present invention;
Figure 15 is the structured flowchart of second of LMU selection device according to embodiments of the present invention;
Figure 16 is the structured flowchart of the third LMU selection device according to embodiments of the present invention.
Embodiment
Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that not conflicting In the case of, the feature in embodiment and embodiment in the application can be mutually combined.
Mentioned in correlation technique, E-SMLC needs to know LMU geographical topology information, for example geographical location information, affiliated Base station or affiliated cell information, could be UE selection participate in this positioning action LMU set.Because E-SMLC is positioning Server, the geographical location information that may do not have base station, if therefore E-SMLC just know that service UE base station and cell ID, UE Position Approximate is not can know that, to select neighbouring UE LMU to measure.
In order to solve the above technical problems, the embodiments of the invention provide a kind of LMU systems of selection, its handling process such as Fig. 2 It is shown, including:
Step S202, E-SMLC receives the LMU auxiliary informations that sided access network element is sent;
Step S204, E-SMLC selects the LMU for participating in UE this positioning action to gather according to above-mentioned LMU auxiliary informations.
In embodiments of the present invention, the LMU auxiliary informations selection that E-SMLC is sent according to sided access network element participates in UE sheet The LMU set of secondary positioning action, i.e. make use of the LMU auxiliary informations of extraneous sided access network element transmission, auxiliary E-SMLC selections LMU, can be measured in subsequent applications using the LMU in the LMU set of selection, rather than arbitrarily select LMU, using this The LMU of inventive method selection, more adjacent to UE, can more accurately carry out UE positioning measurement relative to other LMU.
During implementation, flow as shown in Figure 2, step S202 is after implementation, and LMU auxiliary informations may change with the time Become, now, E-SMLC receives the LMU auxiliary informations after changing, and reselects LMU collection according to the LMU auxiliary informations after change Close, thus ensure selection LMU set in LMU optimality.
In a preferred embodiment, sided access network element can be base station or LMU, can also be other access sides Network element, as long as it can provide specific LMU auxiliary informations.When sided access network element is base station, the base station includes UE's Serving BS, includes the adjacent base station of the serving BS, and all types of base stations may provide LMU auxiliary letters for E-SMLC Cease different there is provided the base station of LMU auxiliary informations, the LMU auxiliary informations provided are also different.For example, in a preferred implementation , may in example, it may be possible to provide LMU auxiliary informations to E-SMLC by serving BS, and in another preferred embodiment It is that serving BS and its adjacent base station provide LMU auxiliary informations to E-SMLC, in other preferred embodiments, can also be LMU itself provides E-SMLC the LMU auxiliary informations of itself.
In the first preferred embodiment mentioned above, sided access network element can select serving BS, now access side The LMU auxiliary informations that network element is provided include:LMU information and service location information of cell on serving BS;Or, serving BS On LMU information, the LMU information on the adjacent base station of serving BS and service location information of cell.Wherein, serving cell position Information includes:GPS (Global Positioning Systems, global positioning system) positional information of serving cell.
Now the particular content of each information is illustrated.
LMU information on serving BS can include:The Base Station Identification (eNB ID) of serving BS;The whole world of serving cell Unique cell ID (ECGI);The LMU ID of LMU on serving BS.E-SMLC selects to participate in UE sheet according to above- mentioned information The LMU of secondary positioning action.
And it is corresponding, the LMU information on adjacent base station can include:The eNB ID of adjacent base station;On adjacent base station LMU LMU ID.
It is previously mentioned, LMU auxiliary informations can include the LMU information on the adjacent base station of serving BS, during implementation, E- SMLC is received before the LMU auxiliary informations that serving BS is sent, and serving BS first obtains the LMU information on its adjacent base station, obtains Take mode as follows:
LMU information (for example, LMU ID) on adjacent base station is sent to service base by adjacent base station by X2 interface message Stand;
Wherein, X2 interface message includes at least one following:X2 sets up request message, X2 and sets up response message and newly-increased X2 interface message.
LMU information on adjacent base station is sent to after serving BS by adjacent base station by X2 interface message, if adjacent LMU information on base station changes, and adjacent base station needs to believe the LMU on the adjacent base station after renewal by X2 interface message Breath informs serving BS;Wherein, X2 interface message includes at least one following:Base station configuration updating information and newly-increased X2 interface disappear Breath.Serving BS is updated according to the fresh information of reception to LMU auxiliary informations, and sends it to E-SMLC.
During implementation, mentioned in step S202, E-SMLC receives profit in the LMU auxiliary informations that serving BS is sent, this step The transmission of LMU auxiliary informations is carried out with info response message between the two, its handling process as shown in figure 3, including:
Step S302, serving BS receive the information request message that E-SMLC is sent;
At the end of step S304, serving BS are UE configuration SRS parameters, to E-SMLC return information response messages, wherein, SRS parameters and LMU auxiliary informations are carried in info response message.
Change for an angle, Fig. 3 handling process can also be handled as follows:
E-SMLC sends information request message to serving BS;
E-SMLC receives the info response message that serving BS is returned, wherein, serving BS is carried in info response message The SRS parameters and LMU auxiliary informations configured for UE.
Now LMU systems of selection provided in an embodiment of the present invention are illustrated with four specific embodiments, in embodiment one Into example IV, sided access network element is serving BS.
Embodiment one
Fig. 4 describes the overall procedure of the first LMU system of selection of the present embodiment offer.
Step S402, E-SMLC receives what is positioned after the LCS agreement location service request messages of MME transmissions to needs TargetUE serving BS sends information request message, to ask serving BS as target UE configuration SRS parameters.
Step S404, serving BS are that target UE are configured after SRS parameters, send info response message to E-SMLC, should It is the SRS parameters and LMU auxiliary informations that target UE are configured that message, which includes serving BS,.
Step S403, E-SMLC selects the LMU for participating in this positioning action to gather according to LMU auxiliary informations.Then E- SMLC carries out measurement of correlation and follow-up positioning flow with the LMU Signalling exchanges of selection to configure LMU.
Embodiment two
The present embodiment be LMU auxiliary informations in not include adjacent base station on LMU auxiliary informations situation.Fig. 5 is this implementation The schematic flow sheet of example.
Step S502, MME sends LCS agreement location service request messages to E-SMLC.
The Location Request is likely to be what is initiated by UE, or (such as urgent call) initiated by MME itself, or by third party What entity was initiated.
Step S504, E-SMLC sends information request message to the serving BS for the target UE for needing to position, to ask Serving BS is that target UE configure SRS parameters and transmit auxiliary information.
Step S506, serving BS are that UE is configured after SRS parameters, send info response message to E-SMLC, the message package Include SRS configurations and the LMU auxiliary informations of the UE.
LMU auxiliary informations are LMU auxiliary informations and serving cell geographical location information on serving BS in the present embodiment.Its LMU auxiliary informations include the LMU of LMU on the eNB ID of serving BS, the ECGI of serving cell, serving BS on middle serving BS ID。
Step S508, E-SMLC is received after info response message, and the LMU near multiple UE is selected according to LMU auxiliary informations The UE is measured.
Step S510, E-SMLC performs follow-up positioning flow to complete positioning action.
Configure SRS to receive UE SRS information and carry out measurement of correlation, LMU specifically, E-SMLC is the LMU selected Measurement result is reported into E-SMLC, E-SMLC is calculated measurement result with positioning UE, then E-SMLC is by positioning result It is sent to MME.
The present embodiment provides a kind of method that side assisted Selection LMU is accessed in UTDOA systems, using this method so that access The LMU set that side network element can aid in E-SMLC to select participates in this positioning action, and enables E-SMLC to select suitable interface Transmit the LMUp protocol messages between E-SMLC and LMU.
Embodiment three
The present embodiment is that LMU auxiliary informations include the situation of LMU auxiliary informations on adjacent base station.Fig. 6 is the present embodiment Schematic flow sheet.
Step S602, adjacent base station send X2 to serving BS and set up request message, to ask to set up X2 connections.The message In comprising adjacent base station be connected LMU ID.
Step S604, serving BS send X2 to adjacent base station and set up response message, and the message package is connected containing serving BS LMUID.
Step S606, MME sends LCS agreement location service request messages to E-SMLC.
The Location Request is likely to be what is initiated by UE, or (such as urgent call) initiated by MME itself, or by third party What entity was initiated.
Step S608, E-SMLC sends information request message to the serving BS for the target UE for needing to position, to ask Serving BS is that target UE configure SRS parameters and transmit auxiliary information.
Step S610, serving BS are that UE is configured after SRS parameters, send info response message to E-SMLC, the message package Include SRS configurations and the LMU auxiliary informations of the UE.
In the present embodiment LMU auxiliary informations be LMU auxiliary informations on serving BS, on adjacent base station LMU auxiliary informations and Serving cell geographical location information.LMU auxiliary informations include the eNB ID of serving BS wherein on serving BS, serving cell LMU LMU ID on ECGI, serving BS;LMU auxiliary informations include on adjacent base station:ENB ID of adjacent base station and this is adjacent LMU LMU ID on base station.
Step S612, E-SMLC is received after info response message, and the LMU near multiple UE is selected according to LMU auxiliary informations The UE is measured.
Step S614, E-SMLC performs follow-up positioning flow to complete positioning action.Specifically, E-SMLC has been selected LMU configures SRS to receive UE SRS information and carry out measurement of correlation, and measurement result is reported E-SMLC, E-SMLC couples by LMU Measurement result is calculated with positioning UE, and then positioning result is sent to MME by E-SMLC.
The present embodiment provides a kind of method that side assisted Selection LMU is accessed in UTDOA systems, using this method so that access The LMU set that side network element can aid in E-SMLC to select participates in this positioning action, and enables E-SMLC to select suitable interface Transmit the LMUp protocol messages between E-SMLC and LMU.
Example IV
The present embodiment is that LMU auxiliary informations are included on adjacent base station in the case of LMU auxiliary informations, on adjacent base station The more new technological process that LMU auxiliary informations change.Fig. 7 is the schematic flow sheet of the present embodiment.
Step S702, adjacent base station send X2 to serving BS and set up request message, to ask to set up X2 connections.The message In comprising adjacent base station be connected LMU ID.
Step S704, serving BS send X2 to adjacent base station and set up response message, and the message package is connected containing serving BS LMUID.
LMU auxiliary informations change on step S706, adjacent base station, and such as LMU ID change.
Step S708, adjacent base station send base station configuration updating information to serving BS, and the LMU updated is included in the message ID。
Step S710, serving BS are received after base station configuration updating information, preserve and update the LMU auxiliary of the adjacent base station Information.
It is previously mentioned, sided access network element can be base station or LMU, and therefore, E-SMLC receives sided access network element hair The LMU auxiliary informations sent, can be the LMU auxiliary informations on the base station of E-SMLC receptions base station transmission, wherein, base station includes The adjacent base station of serving BS and serving BS;Can also be that E-SMLC receives the LMU auxiliary informations of itself that LMU is sent.Connect Enter side NE type difference, the connected interfaces of E-SMLC, the related protocol applied are different.
When carrying out LMU selections, except LMU auxiliary informations, other relevant informations can also be added and considered, example Such as, E-SMLC can also receive the eNB ID lists of its adjacent base station of serving BS transmission, and then E-SMLC is aided according to LMU The combination selection LMU set of both eNB ID lists of information and its adjacent base station.
Situation A, E-SMLC receives the LMU auxiliary informations on the base station that base station is sent, and its idiographic flow is as follows:
It is connected Step 1: setting up LPPa with E-SMLC after electricity on base station;
Step 2: request message or newly-increased message are set up by the LMU on base station in base station by LPPa interface messages, LPPa Auxiliary information is sent to E-SMLC.
Wherein, the LMU auxiliary informations on base station include:The eNB ID of base station;The geography of the cell of base station and home base station Positional information;The ECGI of the cell of home base station;The LMU ID of LMU on base station.It is mentioned that base station and home base station The geographical location information of cell includes GPS position information.
LMU auxiliary informations on base station are sent to after E-SMLC by base station, if the LMU auxiliary informations on base station change Become, then base station by LPPa interface messages, LPPa connection new informations or newly-increased LPPa interface messages by the base station after renewal On LMU auxiliary informations inform E-SMLC.E-SMLC can be according to the LMU auxiliary informations selection LMU set after renewal in follow-up.
During implementation, it is previously mentioned, E-SMLC is received in the LMU auxiliary informations of itself that LMU is sent, this step and be make use of two The transmission of LMU auxiliary informations, its handling process are carried out with info response message for information request message between person as shown in figure 8, bag Include:
SLm is set up after the upper electricity of step S802, LMU with E-SMLC to be connected;
Step S804, LMU sets up request message or newly-increased message by the LMU of its own by SLm interface messages, SLm Auxiliary information is sent to E-SMLC.
Change for an angle, Fig. 3 handling process can also be handled as follows:
E-SMLC receives the LMU auxiliary informations of itself that LMU is sent by SLm interface messages;
Wherein, SLm interface messages include at least one following:SLm sets up request message and newly-increased SLm interface messages.
Wherein, the LMU auxiliary informations of itself that LMU is sent can include:LMU LMU ID;LMU LMU geographical position Information;The eNB ID of LMU own base stations;The ECGI of LMU affiliated subdistricts.It is preferred that, LMU geographical location information can include GPS Positional information.
During implementation, the LMU auxiliary informations of its own are sent to after E-SMLC by LMU, LMU itself LMU auxiliary informations It may change, when it changes, LMU can set up request message or newly-increased by SLm interface messages, SLm LMU after renewal itself LMU auxiliary informations are informed E-SMLC by message.E-SMLC can be according to the LMU after renewal in follow-up Auxiliary information selection LMU set.
It is previously mentioned, E-SMLC receives its adjacent base station that serving BS is sent in addition to LMU auxiliary informations are received, also ENBID lists, its handling process is as follows, including:
Step 1: serving BS receives the information request message that E-SMLC is sent;
Step 2: serving BS is that serving BS leads at the end of UE configures SRS parameters by RRC connections reconfiguration message Cross info response message and the eNB ID lists of the adjacent base station of serving BS are sent to E-SMLC.
Now LMU systems of selection provided in an embodiment of the present invention are illustrated with five specific embodiments, in embodiment five In, sided access network element be base station or LMU, in embodiment six into embodiment seven, sided access network element is base station, embodiment eight to In embodiment nine, sided access network element is LMU.
Embodiment five
Fig. 9 describes the overall procedure of second of LMU system of selection of the present embodiment offer.
Step S902, E-SMLC receives LMU auxiliary informations.E-SMLC can receive LMU auxiliary informations from base station, also may be used To receive LMU auxiliary informations at LMU.
Step S904, E-SMLC receives what is positioned after the LCS agreement location service request messages of MME transmissions to needs TargetUE serving BS sends information request message, to ask serving BS as target UE configuration SRS parameters.
Step S906, serving BS are that target UE are configured after SRS parameters, send info response message to E-SMLC, should Message includes the eNB ID lists of the adjacent base station of the SRS parameters that serving BS is target UE configurations and serving BS.
Step S908, E-SMLC participates in this positional operand according to LMU auxiliary informations and adjacent base station eNB ID lists selection The LMU set of work.Then E-SMLC carries out measurement of correlation and follow-up positioning flow with the LMU Signalling exchanges of selection to configure LMU.
Embodiment six
The present embodiment is the situation that E-SMLC receives LMU auxiliary informations from base station.Figure 10 is the stream of the present embodiment method Journey schematic diagram.
Step S1002, serving BS send LPPa to E-SMLC and set up request message, to ask to set up LPPa connections.
LMU auxiliary informations on base station comprising serving BS in the message, wherein LMU auxiliary informations include on base station: ENBID, base station and the geographical location information for the cell for belonging to the base station, belong to the ECGI of the cell of the base station, LMU ID.
Step S1004, E-SMLC sets up response message to confirm that LPPa connections are set up to serving BS transmission LPPa.
Step S1006, adjacent base station send LPPa to E-SMLC and set up request message, to ask to set up LPPa connections.
LMU auxiliary informations on base station comprising adjacent base station in the message, wherein LMU auxiliary informations include on base station: ENBID, base station and the geographical location information for the cell for belonging to the base station, belong to the ECGI of the cell of the base station, LMU ID.
Step S1008, E-SMLC sets up response message to confirm that LPPa connections are set up to adjacent base station transmission LPPa.
Step S1010, MME sends LCS agreement location service request messages to E-SMLC.The Location Request be likely to be by What UE was initiated, or (such as urgent call) initiated by MME itself, or initiated by third party entity.
Step S1012, E-SMLC sends information request message to the serving BS for the target UE for needing to position, to ask Ask serving BS to configure SRS parameters for target UE and transmit auxiliary information.
Step S1014, serving BS are that UE is configured after SRS parameters, send info response message to E-SMLC, the message package Include the SRS configurations and the eNB ID lists of all or part of adjacent base stations of the UE.
Step S1016, E-SMLC is received after info response message, according to LMU auxiliary informations and the eNB ID of adjacent base station List selects the LMU near multiple UE to measure the UE.
Step S1018, E-SMLC performs follow-up positioning flow to complete positioning action.
Configure SRS to receive UE SRS information and carry out measurement of correlation, LMU specifically, E-SMLC is the LMU selected Measurement result is reported into E-SMLC, E-SMLC is calculated measurement result with positioning UE, then E-SMLC is by positioning result It is sent to MME.
The present embodiment provides a kind of method that side assisted Selection LMU is accessed in UTDOA systems, using this method so that access Side network element can aid in E-SMLC to select LMU set to participate in this positioning action, and enable E-SMLC to select suitable interface to pass Pass the LMUp protocol messages between E-SMLC and LMU.
Embodiment seven
The present embodiment be E-SMLC from base station receive LMU auxiliary informations in the case of, on the base station LMU auxiliary informations send out The raw more new technological process changed.Figure 11 is the schematic flow sheet of the present embodiment.
Step S1102, base station send LPPa to E-SMLC and set up request message, to ask to set up LPPa connections.
LMU auxiliary informations on base station comprising the base station in the message, wherein LMU auxiliary informations include on base station:eNB ID, base station and the geographical location information for the cell for belonging to the base station, belong to the ECGI of the cell of the base station, LMU ID.
Step S1104, E-SMLC sets up response message to confirm that LPPa connections are set up to serving BS transmission LPPa.
LMU auxiliary informations change on step S1106, the base station, and such as LMU ID change.
Step S1108, base station send LPPa connection new informations to E-SMLC, on the base station comprising renewal in the message LMU auxiliary informations, including LMU ID.
Step S1110, E-SMLC is received after LPPa connection new informations, preserves and update the LMU auxiliary informations of the base station.
Embodiment eight
The present embodiment is the situation that E-SMLC receives LMU auxiliary informations at LMU.Figure 12 is the flow of the present embodiment method Schematic diagram.
Step S1202, LMU1 sends SLm to E-SMLC and sets up request message, to ask to set up SLm connections.
Itself LMU auxiliary information of the LMU is included in the message, wherein itself LMU auxiliary information includes:LMU ID, LMU Geographical location information, the eNB ID of the LMU own base stations, the eCGI of the LMU affiliated subdistricts.
Step S1204, E-SMLC sets up response message to confirm that SLm connections are set up to LMU1 transmissions SLm.
Step S1206, LMU2 sends SLm to E-SMLC and sets up request message, to ask to set up SLm connections.In the message Itself LMU auxiliary information comprising the LMU, wherein itself LMU auxiliary information include:LMU ID, LMU geographical location information, should The eNB ID of LMU own base stations, the eCGI of the LMU affiliated subdistricts;
Step S1208, E-SMLC sets up response message to confirm that SLm connections are set up to LMU2 transmissions SLm.
Step S1210, MME sends LCS agreement location service request messages to E-SMLC.The Location Request be likely to be by What UE was initiated, or (such as urgent call) initiated by MME itself, or initiated by third party entity.
Step S1212, E-SMLC sends information request message to the serving BS for the target UE for needing to position, to ask Ask serving BS to configure SRS parameters for target UE and transmit auxiliary information.
Step S1214, serving BS are that UE is configured after SRS parameters, send info response message to E-SMLC, the message package Include the SRS configurations and the eNB ID lists of all or part of adjacent base stations of the UE.
Step S1216, E-SMLC is received after info response message, according to LMU auxiliary informations and the eNB ID of adjacent base station List selects the LMU near multiple UE to measure the UE.
Step S1218, E-SMLC performs follow-up positioning flow to complete positioning action.Specifically, E-SMLC is to have selected LMU configure SRS to receive UE SRS information and carry out measurement of correlation, measurement result is reported E-SMLC, E-SMLC by LMU Measurement result is calculated with positioning UE, then positioning result is sent to MME by E-SMLC.
The present embodiment provides a kind of method that side assisted Selection LMU is accessed in UTDOA systems, using this method so that access Side network element can aid in E-SMLC to select LMU set to participate in this positioning action, and enable E-SMLC to select suitable interface to pass Pass the LMUp protocol messages between E-SMLC and LMU.
Embodiment nine
The present embodiment is itself LMU auxiliary information of the LMU in the case that E-SMLC receives LMU auxiliary informations at LMU The more new technological process changed.Figure 13 is the schematic flow sheet of the present embodiment.
Step S1302, LMU sends SLm to E-SMLC and sets up request message, to ask to set up SLm connections.
Itself LMU auxiliary information of the LMU is included in the message, wherein itself LMU auxiliary information includes:LMU ID, LMU Geographical location information, the eNB ID of the LMU own base stations, the eCGI of the LMU affiliated subdistricts.
Step S1304, E-SMLC sets up response message to confirm that SLm connections are set up to LMU transmissions SLm.
Step S1306, itself LMU auxiliary information of the LMU change, and such as LMU ID change.
Step S1308, LMU sends SLm connection new informations to E-SMLC, and LMU renewals itself is included in the message LMU auxiliary informations, including LMU ID.
Step S1310, E-SMLC is received after SLm connection new informations, preserves and update itself LMU auxiliary letters of the LMU Breath.
Based on same inventive concept, the embodiment of the present invention additionally provides another LMU system of selection, and its handling process is such as Under:
Step A, E-SMLC receives the LMU auxiliary informations that serving BS is sent;
Step B, E-SMLC selects the LMU for participating in UE this positioning action to gather according to LMU auxiliary informations.
Based on same inventive concept, the embodiment of the present invention additionally provides another LMU system of selection, and its handling process is such as Under:
Step A, E-SMLC receives the LMU auxiliary informations that sided access network element is sent;
Step B, E-SMLC receives the eNB ID lists of the adjacent base station for the serving BS that serving BS is sent;
Step C, E-SMLC selects to participate in UE this positioning according to the eNB ID lists of LMU auxiliary informations and adjacent base station The LMU set of operation.
Based on same inventive concept, the embodiment of the present invention additionally provides a kind of LMU selection devices, is arranged in E-SMLC, Its structured flowchart is as shown in figure 14, including:
First receiving module 1401, the LMU auxiliary informations for receiving sided access network element transmission;
First choice module 1402, is coupled with the first receiving module 1401, for participating in UE according to the selection of LMU auxiliary informations This positioning action LMU set.
In a preferred embodiment, when LMU auxiliary informations change, the first receiving module 1401 is additionally operable to reception and changed LMU auxiliary informations after change;
First choice module 1402 is additionally operable to participate in UE this positioning action according to the LMU auxiliary informations selection after change LMU set.
In a preferred embodiment, LMU selection devices are additionally operable to send information request message to serving BS, and utilize First receiving module 1401 receives the info response message that serving BS is returned, wherein, service base is carried in info response message Stand as the SRS parameters and LMU auxiliary informations of UE configurations.
In a preferred embodiment, the LMU that the first receiving module 1401 is additionally operable to receive on the base station that base station is sent is auxiliary Supplementary information, wherein, base station includes the adjacent base station of serving BS and serving BS;Or the LMU of itself that reception LMU is sent is auxiliary Supplementary information.
In a preferred embodiment, the first receiving module 1401 is additionally operable to receive the serving BS that serving BS is sent The eNB ID lists of adjacent base station;First choice module 1402 is additionally operable to the eNB ID according to LMU auxiliary informations and adjacent base station List selection LMU set.
In a preferred embodiment, the first receiving module 1401 be additionally operable to receive base station sent by LPPa interface messages Base station on LMU auxiliary informations;Wherein, LPPa interface messages include at least one following:LPPa set up request message and Newly-increased LPPa interface messages.
In a preferred embodiment, the first receiving module 1401 is additionally operable to receive what LMU was sent by SLm interface messages The LMU auxiliary informations of itself;Wherein, SLm interface messages include at least one following:SLm sets up request message and newly-increased SLm Interface message.
When LMU auxiliary informations on base station change, base station is by LPPa interface messages by the base station after renewal LMU auxiliary informations inform LMU selection devices;Wherein, LPPa interface messages include at least one following:LPPa sets up request message And newly-increased LPPa interface messages;Or
When LMU itself LMU auxiliary informations change, LMU is by SLm interface messages by the LMU's after renewal itself LMU auxiliary informations inform LMU selection devices;Wherein, SLm interface messages include at least one following:SLm set up request message with And newly-increased SLm interface messages.
Based on same inventive concept, the embodiment of the present invention additionally provides another LMU selection device, is arranged on E-SMLC In, its structured flowchart is as shown in figure 15, including:
Second receiving module 1501, the LMU auxiliary informations for receiving sided access network element transmission, wherein, receive into side net Member includes base station and/or LMU, and base station includes the adjacent base station of serving BS and serving BS;
3rd receiving module 1502, for sending after location service request message, receives the service base that serving BS is sent The Base Station Identification eNB ID lists for the adjacent base station stood;
Second selecting module 1503, is coupled with the second receiving module 1601, the 3rd receiving module 1602, for basis respectively The eNB ID lists selection of LMU auxiliary informations and adjacent base station participates in the LMU set of UE this positioning action.
Based on same inventive concept, the embodiment of the present invention additionally provides another LMU selection device, is arranged on E-SMLC In, its structured flowchart is as shown in figure 16, including:
4th receiving module 1601, the LMU auxiliary informations for receiving serving BS transmission;
3rd selecting module 1602, is coupled with the 4th receiving module 1601, for participating in UE according to the selection of LMU auxiliary informations This positioning action LMU set.
As can be seen from the above description, the present invention realizes following technique effect:
In embodiments of the present invention, the LMU auxiliary informations selection that E-SMLC is sent according to sided access network element participates in UE sheet The LMU set of secondary positioning action, i.e. make use of the LMU auxiliary informations of extraneous sided access network element transmission, auxiliary E-SMLC selections LMU, can be measured in subsequent applications using the LMU in the LMU set of selection, rather than arbitrarily select LMU, using this The LMU of inventive method selection, more adjacent to UE, can more accurately carry out UE positioning measurement relative to other LMU.
Obviously, those skilled in the art should be understood that above-mentioned each module of the invention or each step can be with general Computing device realize that they can be concentrated on single computing device, or be distributed in multiple computing devices and constituted Network on, alternatively, the program code that they can be can perform with computing device be realized, it is thus possible to they are stored Performed in the storage device by computing device, and in some cases, can be shown to be performed different from order herein The step of going out or describe, they are either fabricated to each integrated circuit modules respectively or by multiple modules in them or Step is fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hardware and software combination.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies Change, equivalent substitution, improvement etc., should be included in the scope of the protection.

Claims (19)

1. a kind of location measurement unit LMU systems of selection, it is characterised in that including:
The Serving Mobile Location Center E-SMLC of evolution receives the LMU auxiliary informations that sided access network element is sent;
The E-SMLC selects the LMU for participating in this positioning action of user equipment (UE) to gather according to the LMU auxiliary informations, its In, when the sided access network element includes serving BS, the LMU auxiliary informations include:LMU information on the serving BS and Serving cell positional information;Or, the LMU letters in the LMU information, the adjacent base station of the serving BS on the serving BS Breath and service location information of cell.
2. according to the method described in claim 1, it is characterised in that the LMU that the E-SMLC receives sided access network element transmission is auxiliary After supplementary information, in addition to:When the LMU auxiliary informations change, the E-SMLC receives the LMU auxiliary letters after changing Breath, and select the LMU to gather according to the LMU auxiliary informations after the change.
3. according to the method described in claim 1, it is characterised in that the serving cell positional information includes:The service is small The global position system GPS positional information in area.
4. according to the method described in claim 1, it is characterised in that the LMU information on the serving BS includes:The service The Base Station Identification eNB ID of base station;The ECGI of the serving cell;The LMU ID of LMU on the serving BS;
LMU information on the adjacent base station includes:The eNB ID of the adjacent base station;The LMU of LMU on the adjacent base station ID。
5. according to the method described in claim 1, it is characterised in that the LMU auxiliary informations include the phase of the serving BS During LMU information in adjacent base station, the E-SMLC is received before the LMU auxiliary informations that the serving BS is sent, in addition to:
LMU information on the adjacent base station is sent to the serving BS by the adjacent base station by X2 interface message;
Wherein, the X2 interface message includes at least one following:X2 sets up request message, X2 and sets up response message and newly-increased X2 interface message.
6. method according to claim 5, it is characterised in that the adjacent base station will be described adjacent by X2 interface message LMU information on base station is sent to after the serving BS, in addition to:
If the LMU information on the adjacent base station changes, the adjacent base station is by X2 interface message by the institute after renewal The LMU information stated on adjacent base station informs the serving BS;
Wherein, the X2 interface message includes at least one following:Base station configuration updating information and newly-increased X2 interface message.
7. according to the method described in claim 1, it is characterised in that the E-SMLC receives the LMU that the serving BS is sent Auxiliary information, including:
The E-SMLC sends information request message to the serving BS;
The E-SMLC receives the info response message that the serving BS is returned, wherein, carried in described information response message The serving BS is the SRS parameters and the LMU auxiliary informations that the UE is configured.
8. method according to claim 1 or 2, it is characterised in that the E-SMLC receives the LMU that sided access network element is sent Auxiliary information, including:
The E-SMLC receives the LMU auxiliary informations on the base station that base station is sent, wherein, the base station includes the service Base station and the adjacent base station of the serving BS;Or
The E-SMLC receives the LMU auxiliary informations of itself that LMU is sent.
9. method according to claim 8, it is characterised in that the LMU that the E-SMLC receives sided access network element transmission is auxiliary After supplementary information, the E-SMLC selects the LMU for participating in UE this positioning action to gather it according to the LMU auxiliary informations Before, in addition to:
The E-SMLC receives the eNB ID lists of the adjacent base station for the serving BS that serving BS is sent;
The E-SMLC selects the LMU for participating in UE this positioning action to gather according to the LMU auxiliary informations, including:
The E-SMLC selects the LMU to gather according to the eNB ID lists of the LMU auxiliary informations and the adjacent base station.
10. the method described in claim 8, it is characterised in that the E-SMLC receives the LMU on the base station that base station is sent Auxiliary information, including:
The E-SMLC receives the LMU auxiliary informations on the base station that the base station is sent by LPPa interface messages;
Wherein, the LPPa interface messages include at least one following:LPPa sets up request message and newly-increased LPPa interfaces disappear Breath.
11. method according to claim 10, it is characterised in that the LMU auxiliary informations on the base station include:
The eNB ID of the base station;
The geographical location information of the cell of the base station and the ownership base station;
Belong to the ECGI of the cell of the base station;
The LMU ID of LMU on the base station.
12. method according to claim 11, it is characterised in that the geographical location information of the cell of the base station includes GPS position information.
13. method according to claim 8, it is characterised in that the E-SMLC receives itself of the LMU transmissions LMU auxiliary informations, including:
The E-SMLC receives the LMU auxiliary informations of itself that the LMU is sent by SLm interface messages;
Wherein, the SLm interface messages include at least one following:SLm sets up request message and newly-increased SLm interface messages.
14. method according to claim 13, it is characterised in that the LMU auxiliary informations of itself that the LMU is sent, bag Include:
The LMU ID of the LMU;
The LMU geographical location information of the LMU;
The eNB ID of the LMU own base stations;
The ECGI of the LMU affiliated subdistricts.
15. method according to claim 14, it is characterised in that the LMU geographical location information is believed including GPS location Breath.
16. method according to claim 8, it is characterised in that the base station send out the LMU auxiliary informations on the base station After giving the E-SMLC, in addition to:When LMU auxiliary informations on the base station change, the base station passes through LPPa LMU auxiliary informations on the base station after renewal are informed the E-SMLC by interface message;Wherein, the LPPa interface messages Including at least one following:LPPa sets up request message and newly-increased LPPa interface messages;Or
The LMU auxiliary informations of its own are sent to after the E-SMLC by the LMU, in addition to:The LMU LMU of itself When auxiliary information changes, the LMU is accused the LMU auxiliary informations of the LMU itself after renewal by SLm interface messages Know the E-SMLC;Wherein, the SLm interface messages include at least one following:SLm sets up request message and newly-increased SLm Interface message.
17. method according to claim 9, it is characterised in that the E-SMLC receives the clothes that serving BS is sent The eNB ID lists of the adjacent base station of business base station, including:
The E-SMLC sends information request message to the serving BS;
The E-SMLC receives the adjacent base station for the serving BS that the serving BS is sent by info response message ENB ID lists.
18. a kind of location measurement unit LMU selection devices, it is characterised in that be arranged on the Serving Mobile Location Center E- of evolution In SMLC, including:
First receiving module, the LMU auxiliary informations for receiving sided access network element transmission;
First choice module, the LMU of this positioning action for selecting participation user equipment (UE) according to the LMU auxiliary informations Set, wherein, when the sided access network element includes serving BS, the LMU auxiliary informations include:On the serving BS LMU information and service location information of cell;Or, LMU information, the adjacent base station of the serving BS on the serving BS On LMU information and service location information of cell.
19. a kind of location measurement unit LMU selection devices, it is characterised in that be arranged on the Serving Mobile Location Center E- of evolution In SMLC, including:
Second receiving module, the LMU auxiliary informations for receiving sided access network element transmission, wherein, receive includes base into side network element Stand and/or LMU, base station includes the adjacent base station of serving BS and serving BS;
3rd receiving module, for sending after location service request message, receives the adjacent of the serving BS that serving BS is sent The Base Station Identification eNB ID lists of base station;
Second selecting module, for participating in using according to the eNB ID lists of the LMU auxiliary informations and adjacent base station selection The LMU set of this positioning action of family equipment UE, wherein, when the sided access network element includes serving BS, the LMU auxiliary Information includes:LMU information and service location information of cell on the serving BS;Or, the LMU letters on the serving BS Breath, the LMU information on the adjacent base station of the serving BS and service location information of cell.
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