CN101895922A - Information acquisition method, system and device - Google Patents
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Abstract
The invention discloses an information acquisition method, an information acquisition system and an information acquisition device, which are used for making a network side acquire an auxiliary positioning measurement result which is reported by a terminal and is used for positioning the terminal. The information acquisition method provided by the invention comprises that: a base station transmits a triggering message which triggers the report of the auxiliary positioning measurement result to the terminal, wherein the auxiliary positioning measurement result is used for positioning the terminal, and the triggering message contains indication information which is used for indicating the terminal to perform auxiliary positioning measurement; and the base station acquires the auxiliary positioning measurement result which is measured by the terminal according to the indication information.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of information getting method, system and device.
Background technology
At universal mobile telecommunications system (UMTS, Universal Mobile TelecommunicationsSystem) in the system, prior art has proposed a kind of method that terminal (UE) is positioned, promptly adopt cell ID (Cell ID)+timing advance (TA, Timing Advance)+arrival bearing (AOA, Angle of Arrival) localization method, referring to Fig. 1, its principle comprises:
Base station (Node B) obtains the AOA that terminal UE transmits by smart antenna, and it is on the ray of starting point that UE is in the base station, and the angle that ray is rotated counterclockwise from direct north is AOA.
So-called timing advance (TA) is meant because transmission range causes propagation delay time, so UE need be in advance in timer clock transmission signal, and the time quantum that shifts to an earlier date so is a timing advance.
The timing advance that UE reports deducts the reception timing offset (RxTD) that the base station reports, and then multiply by the light velocity divided by 2, has just obtained the distance between UE and the Node B, and it is that the center of circle, this distance are on the circumference of radius that UE is in Node B.Wherein, to be that the base station is up-to-date receive the timing offset that subscriber signal measures to described RxTD, it is a relative value, this deviation is because last to after the TA adjustment, terminal still continues motion, adjusted the value of TA in the base station after, send data to terminal during, the timing offset that produces, promptly RxTD is the variable quantity of TA.
The locating module of network side in conjunction with the geographical location information of Cell ID locating information and Node B, just can be determined the position of UE according to the distance between UE and the Node B.
About the triggering of location survey with report mechanism to comprise:
Radio network controller (RNC) carries out the measurement of TA by measurement control messages (Measurement Control) triggering terminal of Radio Resource control (RRC) signaling.(System Frame Number SFN) reports the rrc layer of terminal to the physical layer of terminal with the measurement result of TA and time of measuring TA.The rrc layer of terminal is with this measurement result and pass through measurement report (Measurement Report) information reporting to network side corresponding SFN number.And RNC also requires NodeB that the AOA of terminal is measured, and preserves the AOA measurement result of Node B.Network side utilizes the arrival angle AOA of this terminal that terminal records measurement result and the network side of TA, determines the position of this terminal simultaneously in conjunction with the geographical position of sub-district.
In Long Term Evolution (LTE) system, still can continue to use with the similar localization method of above-mentioned localization method terminal is positioned, just the TA certainty of measurement of LTE system is different with the TA certainty of measurement of UMTS system, and does not support that also the measurement of TA reports at present.
Therefore, in the LTE system, prior art is support terminal reporting TA not also, network side can't obtain the measurement result of terminal to TA, therefore can't terminal be positioned according to the TA information of terminal to report, if terminal does not report TA information, will cause network side that deviation is appearred in the location of terminal, can't guarantee locating accuracy.
For other localization methods, observe poor (OTDOA) method as descending time of arrival (toa), if terminal can not report observed time difference, then network side can't position terminal at all.
Summary of the invention
The embodiment of the invention provides a kind of information getting method, system and device, with so that network side obtains the auxiliary positioning measurement result that this terminal is positioned of being used for of terminal to report.
A kind of information getting method that the embodiment of the invention provides comprises:
The base station sends to terminal and triggers the triggering message that auxiliary positioning measurement result reports, and described auxiliary positioning measurement result is used for this terminal is positioned, and contains in the described triggering message to be used to indicate described terminal to carry out the indication information that assist location is measured;
The base station obtains the auxiliary positioning measurement result that described terminal records according to described indication information.
A kind of communication system that the embodiment of the invention provides comprises:
The core net device is used for sending locating request message to the base station;
The base station, be used to receive described locating request message, and send to trigger the triggering message that auxiliary positioning measurement result reports to terminal according to described locating request message, described auxiliary positioning measurement result is used for this terminal is positioned, and contains in the described triggering message to be used to indicate described terminal to carry out the indication information that assist location is measured; Obtain the auxiliary positioning measurement result that described terminal records according to described indication information.
A kind of base station that the embodiment of the invention provides comprises:
Trigger element, be used for sending the triggering message that the triggering auxiliary positioning measurement result reports to terminal, described auxiliary positioning measurement result is used for this terminal is positioned, and contains in the described triggering message to be used to indicate described terminal to carry out the indication information that assist location is measured;
Acquiring unit is used to obtain the auxiliary positioning measurement result that described terminal records according to described indication information as a result.
The embodiment of the invention, send the triggering message that the triggering auxiliary positioning measurement result reports by the base station to terminal, described auxiliary positioning measurement result is used for this terminal is positioned, and contains in the described triggering message to be used to indicate described terminal to carry out the indication information that assist location is measured; The base station obtains the auxiliary positioning measurement result that described terminal records according to described indication information, thereby with so that network side obtains the auxiliary positioning measurement result that this terminal is positioned of being used for of terminal to report, and then make network side can realize location according to the auxiliary positioning measurement result of terminal to report to this terminal, improve the terminal positioning precision.
Description of drawings
The principle schematic that Fig. 1 positions UE for prior art;
The overall procedure schematic diagram of a kind of information getting method that Fig. 2 provides for the embodiment of the invention;
Positioning flow schematic diagram when the locating module that Fig. 3 provides for the embodiment of the invention is positioned at inside of base station;
Positioning flow schematic diagram when the locating module that Fig. 4 provides for the embodiment of the invention is positioned at the outside, base station;
The structural representation of the medium access control son head (MAC subheader) that Fig. 5 provides for the embodiment of the invention;
The structural representation of the medium access control element (MAC CE) that Fig. 6 provides for the embodiment of the invention;
The structural representation of the MAC CE that Fig. 7 provides for the embodiment of the invention;
The structural representation of the MAC CE that Fig. 8 provides for the embodiment of the invention;
The structural representation of the MAC CE that Fig. 9 provides for the embodiment of the invention;
The structural representation of a kind of communication system that Figure 10 provides for the embodiment of the invention;
The structural representation of a kind of base station that Figure 11 provides for the embodiment of the invention;
The structural representation of a kind of base station that Figure 12 provides for the embodiment of the invention.
Embodiment
The embodiment of the invention provides a kind of information getting method, system and device, in order in the LTE of LTE or evolution (LTE-A) system, makes network side obtain the auxiliary positioning measurement result that this terminal is positioned of being used for of terminal to report.
The described auxiliary positioning measurement result of the embodiment of the invention can be a TA information, perhaps TA information and SFN information, or the observed time difference in the OTDOA localization method etc. is used for parameter information that terminal is positioned.Wherein, described observed time difference is meant when UE receives a plurality of signal of base station simultaneously, the deviation of the time of the time of the base station signal incoming terminal that records and Serving cell signal incoming terminal.Observed time difference is generally used in the localization method of OTDOA.After the measurement result of terminal to report observed time difference, network side can send the deviation of the time of signal to terminal according to the base station, and the observed time difference of terminal to report comes terminal is positioned.
The embodiment of the invention is for the positioning function of network enabled, carries out the locate mode that assist location is measured to needing terminal, and a kind of triggering of measuring by medium access control (MAC) signaling and the mechanism that reports are provided.
The embodiment of the invention is an example with the localization method (being designated hereinafter simply as the localization method of Cell ID+TA+AOA) based on the cell ID (Cell ID), timing advance (TA) and the arrival bearing (AOA) that strengthen mainly, has provided by the MAC signaling to position the triggering of measurement of correlation and report mechanism.For other OTDOA localization methods for example, the technical scheme that the embodiment of the invention provides is suitable equally.
Below in conjunction with accompanying drawing the technical scheme that provides in the embodiment of the invention is described.
Referring to Fig. 2, a kind of information getting method that the embodiment of the invention provides totally comprises step:
S101, base station send to terminal and trigger the triggering message that auxiliary positioning measurement result reports, and this auxiliary positioning measurement result is used for this terminal is positioned, and contain in this triggering message to be used for the indication information that indicating terminal carries out the assist location measurement.
S102, base station obtain the auxiliary positioning measurement result of terminal to report, the auxiliary positioning measurement result that the indication information that contains in the triggering message that this auxiliary positioning measurement result triggering auxiliary positioning measurement result that to be terminal send according to the base station reports records.
The embodiment of the invention is that example describes with the localization method based on Cell ID+TA+AOA.
When core net sent locating request message to the base station after, the measurement of correlation of base station triggers location: carry out assist location by medium access control physical data unit (MAC PDU) triggering terminal and measure (, needing to measure TA) for Cell ID+TA+AOA localization method.And base station triggers self physical layer is measured (for Cell ID+TA+AOA localization method, needing to measure AOA) at this terminal assist location of being correlated with.Terminal is received after the MAC PDU that triggers the assist location measurement, carry out the measurement of TA parameter, the auxiliary positioning measurement result that obtains being correlated with, this measurement result can only comprise TA information, the also Measuring Time that can comprise TA information and measure this TA information, and issue the base station by up MAC PDU.The auxiliary positioning measurement result that the base station is relevant with the location with all sends to locating module, by locating module these auxiliary positioning measurement result is handled, and terminal is positioned, and obtains location information of terminals.
Wherein, locating module promptly positions the module of correlation computations, can be positioned at inside of base station, promptly finishes the location by the base station; Locating module also can be positioned at the outside, base station, promptly finish the location by another network entity beyond the base station, land radio access web (UTRAN) and the enhanced service mobile positioning center (E-SMLC) that interface (the being IUPC) interface of personal computer (PC) links to each other with the base station as by 3-G (Generation Three mobile communication system) (UMTS) are called for short the centre of location.
Referring to Fig. 3, when locating module was positioned at inside of base station, the flow process that network side obtains terminal positional information comprised:
Wherein, be used for to have multiple to the core net device of base station transmission locating request message, the reason that specifically depends on the triggered location request, for example, the Operation and Maintenance entity that can be operator's control sends locating request message to the base station, also can be that business provides service provider (SP) to send locating request message to the base station.
After step 2, base station receive locating request message,, send to trigger triggering message that auxiliary positioning measurement result reports to target terminal by MAC PDU according to the indication of locating request message.
The arrival bearing AOA of terminal is determined in step 3, base station.
Referring to Fig. 4, when locating module was positioned at the outside, base station, the flow process that network side obtains terminal positional information comprised:
After step 2, base station receive locating request message,, send to trigger triggering message that auxiliary positioning measurement result reports to target terminal by MAC PDU according to the indication of locating request message.
The arrival bearing AOA of terminal is determined in step 3, base station.
The auxiliary positioning measurement result that step 6, the centre of location record according to terminal, and the AOA of this terminal of recording of base station position this terminal, obtain positioning result, wherein contain location information of terminals.
In addition, the centre of location also can be arranged in core net, therefore the base station is with the auxiliary positioning measurement result of terminal to report, and the AOA of this terminal, send to the centre of location after, the auxiliary positioning measurement result that records according to terminal by the centre of location, and the AOA of this terminal of recording of base station, this terminal is positioned, obtain positioning result, and report core net by the base station after need not again positioning result to be fed back to the base station.
The auxiliary positioning measurement result of terminal to report in the embodiment of the invention can be result's (this result can only comprise TA information, also can both comprise TA information, comprises the time of measuring TA information again) that terminal single assist location is measured; Perhaps, also can be the repeatedly result's of assist location measurement mean value of terminal; Perhaps, also can be the repeatedly result of assist location measurement (this result can only comprise TA information, also can both comprise TA information, comprises the time of measuring TA information again) of terminal.
In the embodiment of the invention,, need the new descending MAC PDU form of definition for triggering terminal reports auxiliary positioning measurement result.Localization method with Cell ID+TA+AOA is an example below, and the format description of some MAC PDU that provide in the embodiment of the invention is provided.
Preferably, can adopt the form of the MAC controlPDU (a kind of MAC PDU) of the control information of carrying medium access control (MAC) layer, carry and be used for the indication information that indicating terminal carries out the assist location measurement, after making that terminal is carried out corresponding measurement according to this indication information, measurement result is reported the base station.
MAC control PDU in the LTE system comprises medium access control head (MACsubheadder) and medium access control element (MAC CE, MAC Control Element) two parts.
The indicating terminal that is used for that contains in the triggering message that the triggering auxiliary positioning measurement result reports carries out the indication information difference that assist location is measured, and then the definition of MAC control PDU form is also different, below divides multiple situation, provides different format descriptions.
The form of the MAC subheader of embodiment of the invention definition, as shown in Figure 5, wherein, R represents reserved bit; E represents extended bit, is used to indicate the follow-up MAC subheader that whether also has; LCID is Logic Channel Identifier (ID), the type that is used to indicate MAC CE; Oct 1 expression byte 1, each byte comprises 8 bits.
At the demand of the embodiment of the invention, can defining special LCID value, to indicate this be that a notice terminal is carried out TA information measurement and the MAC PDU that reports.Shown in following table 1, the LCID field implication of existing down link (DL) is further expanded, definition represents to notify terminal to carry out reporting of TA information when the value of LCID be " 11011 ".
| Index (Index) | LCID value (values) |
| 00000 | Common Control Channel (CCCH) |
| 00001-01010 | Logic Channel Identifier (Identity of the logical channel) |
| 01011-11010 | Keep (Reserved) |
| 11011 | The notice terminal is carried out TA information and is reported |
| 11100 | Terminal challenge solves sign (UE Contention Resolution Identity) |
| 11101 | Timing advance order (Timing Advance Command) |
| 11110 | Discontinuous reception order (DRX Command) |
| 11111 | Filling bit (Padding) |
Table 1
At this moment, for the form of MAC CE, can not make change.Because the MACsubheadder shown in the employing table 1 can notify one-shot measurement that UE carries out TA information and report, so do not need to define concrete MAC CE.MAC CE can be sky, promptly takies 0 bit (bit).
At this moment, similar with top situation 1, the form of the MAC subheader of definition still as shown in Figure 5, wherein, R represents reserved bit; E represents extended bit, is used to indicate the follow-up MACsubheader that whether also has; LCID is Logic Channel Identifier (ID), the type that is used to indicate MAC CE; Oct 1 expression byte 1, each byte comprises 8 bits.
At the demand of the embodiment of the invention, can defining special LCID value, to indicate this be that a notice terminal is carried out repeatedly TA and measured, and a plurality of TA information that will repeatedly record report the MAC PDU of base station.Shown in following table 2, existing DL LCID field implication is further expanded, definition is when the value of LCID is " 11011 ", a plurality of TA information that expression notice terminal to report repeatedly records, that is to say, terminal records a TA information at every turn, and terminal need take multiple measurements at different time, obtains a plurality of TA information.
| Index | LCID?values |
| 00000 | CCCH |
| 00001-01010 | Identity?of?the?logical?channel |
| 01011-11010 | Reserved |
| 11011 | The TA information that the notice terminal to report repeatedly records |
| 11100 | UE?Contention?Resolution?Identity |
| 11101 | Timing?Advance?Command |
| 11110 | DRX?Command |
| 11111 | Padding |
Table 2
In order to indicate UE to measure the number of times of TA, can use the reservation bit (Rbit) among the MAC subheader, can do definition shown in following table 3 to R bit:
| The coding of two R bit | Require UE to measure the number of times of TA |
| 00 | 1 |
| 01 | 2 |
| 10 | 3 |
| 11 | 4 |
Table 3
If do not utilize R bit indication UE to measure the number of times of TA, just need the definition MAC CE corresponding, specifically as shown in Figure 6, in MAC CE, adopt the some bits in 1 byte to indicate UE to measure the number of times (TA Num) of TA with MAC subheader, wherein, R represents reserved bit; Oct 1 expression byte 1 can be utilized low three bit indication TA Num in this byte 1, and the coding of TA Num is shown in following table 4:
| The coding of TA Num | Require UE to measure the number of times of TA |
| 000 | 1 |
| 001 | 2 |
| 010 | 3 |
| 011 | 4 |
| 100 | 5 |
| 101 | 6 |
| 110 | 7 |
| 111 | 8 |
Table 4
In like manner, for support terminal reports auxiliary positioning measurement result, also need to define new up MACcontrol PDU form.The difference of auxiliary positioning measurement result, the definition of then up MAC control PDU form are also different, below divide multiple situation, provide different format descriptions.
The TA informational needs uses 16 bits to represent, its unit is 1Ts, and 1Ts is 1/ (15000*2048) second, and Ts is the basic time unit in the LTE system.
At this moment, the form of the MAC subheader of definition still as shown in Figure 5, wherein, R represents reserved bit; E represents extended bit, is used to indicate the follow-up MAC subheader that whether also has; LCID is Logic Channel Identifier (ID), the type that is used to indicate MAC CE; Oct 1 expression byte 1, each byte comprises 8 bits.
At the demand of the embodiment of the invention, can defining special LCID value, to indicate this be that a terminal is carried out the MAC control PDU that TA+SFN information reports.Shown in following table 5, the LCID field implication of existing up link (UL) is further expanded, definition represents that UE reports TA information and SFN information when the value of LCID is " 11001 ".
| Index | ?LCID?values |
| 00000 | ?CCCH |
| 00001-01010 | ?Identity?of?the?logical?channel |
| 01011-11000 | ?Reserved |
| 11001 | UE reports TA+SFN |
| 11010 | Residual power reports (Power Headroom Report) |
| 11011 | Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (C-RNTI) |
| 11100 | The buffer memory of brachymemma (buffer) status report (Truncated BSR) |
| 11101 | Short buffer status report (Short BSR) |
| 11110 | Long buffer status report (Long BSR) |
| 11111 | Filling bit (Padding) |
Table 5
At this moment, for the form of MAC CE, adopt 4 bytes as MAC CE, be used to carry TA information and SFN information, as shown in Figure 7, wherein, R represents reserved bit; Oct 1 expression byte 1, Oct2 represents byte 2, Oct 3 expression bytes 3, Oct 4 expression bytes 4.The SFN informational needs takies 10bit, and therefore by back two bits among the Oct 1, and the 8 bits of Oct 2 carries; The TA informational needs takies 16bit, therefore carries by Oct 3 and Oct 4.
For example, a plurality of auxiliary positioning measurement result comprise a plurality of (TA+SFN) information, the TA information that promptly repeatedly records, and the SFN that at every turn measures TA information.
At this moment, the form of the MAC subheader of definition still as shown in Figure 5, wherein, R represents reserved bit; E represents extended bit, is used to indicate the follow-up MAC subheader that whether also has; LCID is Logic Channel Identifier (ID), the type that is used to indicate MAC CE; Oct 1 expression byte 1, each byte comprises 8 bits.
At the demand of the embodiment of the invention, can defining special LCID value, to indicate this be that a terminal is carried out the MAC control PDU that a plurality of (TA+SFN) information reports.Shown in following table 6, existing UL LCID field implication is further expanded, definition is when the value of LCID is " 11001 ", expression UE reports a plurality of TA information, and the time of measuring each TA information---SFN information.
| Index | LCID?values |
| 00000 | CCCH |
| 00001-01010 | Identity?of?the?logical?channel |
| 01011-11000 | Reserved |
| 11001 | UE reports a plurality of (TA+SFN) |
| 11010 | Power?Headroom?Report |
| 11011 | C-RNTI |
| 11100 | Truncated?BSR |
| 11101 | Short?BSR |
| 11110 | Long?BSR |
| 11111 | Padding |
Table 6
The number of the TA+SFN information that at every turn reports can adopt in advance the fixed number of times that consults with network side, and for example, agreement reports at every turn and all comprises n (TA+SFN) information in standard, and n is a natural number.
The number of the TA+SFN information that at every turn reports also can use the R bit among the MAC subheader to indicate, and the coding of R bit is shown in following table 7 at this moment:
| The coding of two R bit | Require UE to report the number of (TA+SFN) |
| 00 | 1 |
| 01 | 2 |
| 10 | 3 |
| 11 | 4 |
Table 7
At this moment, the design for the form of MAC CE can have multiple:
When known (TA+SFN) information report number the time, regulation (acquiescence) or indicate the number that reports of (TA+SFN) information by the R bit among the MAC subheader in the agreement for example, then need not in MAC CE, to indicate the number that reports of (TA+SFN) information, MAC CE only need indicate (TA+SFN) information that at every turn records to get final product, this moment MAC CE form as shown in Figure 8, wherein R represents to reserve bit; SFN represents System Frame Number, and each SFN takies 10bit; TA represents the TA information that UE reports, and each TA information takies 16bit.From byte 1, what per four continuous bytes were carried is (TA+SFN) information that once records.
The form of MAC CE shown in Fig. 8 can further be optimized, and for example, can further reduce the quantity of Rbit, to reduce the resource overhead that MAC CE need take.
When the number of unknown (TA+SFN), promptly do not give tacit consent to the number of (TA+SFN) that terminal need report at every turn, the number that does not perhaps have indicating terminal this time need not report in MAC subheader (TA+SFN), then need in MAC CE, indicate the number of (TA+SFN), so, the concrete form of MAC CE as shown in Figure 9, wherein, R represents to reserve bit; SFN represents System Frame Number, and each SFN takies 10bit; TA represents the TA information that UE reports, and each TA information takies 16bit; (TA+SFN) num represents the quantity of (TA+SFN) information of carrying in the MAC CE, and (TA+SFN) num takies 3bit, and (TA+SFN) coding of num is shown in following table 8:
| (TA+SFN) coding of num | The quantity of the TA+SFN that reports |
| 000 | 1 |
| 001 | 2 |
| 010 | 3 |
| 011 | 4 |
| 100 | 5 |
| 101 | 6 |
| 110 | 7 |
| 111 | 8 |
Table 8
In MAC CE shown in Figure 9, what (TA+SFN) num took is first byte, i.e. 3 R bit in the byte 1.Certainly, also can be difficult to adopt other designs, as increase new byte, to realize the indication of (TA+SFN) num.
After the base station has detected the AOA information of terminal, can be with its this AOA information, perhaps this AOA information and the Measuring Time information of measuring this AOA information send to locating module, and locating module is determined the position of UE according to the TA information of these information and terminal to report.
Similar assist location measurement triggering, and the technical scheme that reports mechanism also can adopt the embodiment of the invention to provide of measurement result, for example, in the localization method of OTDOA, measurement of correlation in the said process can be the measurement of terminal to observed time difference, the auxiliary positioning measurement result that reports can be observed time difference.
Referring to Figure 10, a kind of communication system that the embodiment of the invention provides comprises:
Core net device 11 is used for sending locating request message to base station 12.
Wherein, have at least a terminal 10 to link to each other with described base station 12.
Preferably, described base station 12 also is used for determining the arrival bearing AOA of described terminal 10; And the auxiliary positioning measurement result that reports according to described terminal 10, and the AOA of terminal 10, described terminal 10 is positioned, and positioning result (being the positional information of terminal 10) is reported described core net device 11, promptly report core net.Then described core net device 11 also is used to obtain the positioning result to terminal 1O that feed back base station 12.
Perhaps, the communication system that the embodiment of the invention provides also comprises: be positioned at base station 12 centre of location 13 in addition, this centre of location 13 can be arranged in core net device 11, also can be positioned at outside the core net device 11.
In the time of outside the centre of location 13 is positioned at core net device 11, described base station 12 also is used for determining the arrival bearing AOA of described terminal 10; And the auxiliary positioning measurement result that described terminal 10 is reported, and the AOA of described terminal 10, send to the centre of location 13; The positioning result to terminal 10 of the described centre of location 13 feedbacks is reported described core net device 11, promptly report core net.The centre of location 13 is used for the auxiliary positioning measurement result that records according to the terminal 10 that described base station 12 sends, and the AOA of terminal 10, described terminal 10 is positioned, and positioning result is fed back to described base station 12.
When the centre of location 13 was arranged in core net device 11, described base station 12 also was used for determining the arrival bearing AOA of described terminal 10; And the auxiliary positioning measurement result that described terminal 10 is reported, and the AOA of described terminal 10, send to the centre of location 13; The centre of location 13 is used for the auxiliary positioning measurement result that records according to the terminal 10 that described base station 12 sends, and the AOA of terminal 10, and described terminal 10 is positioned.
Preferably, referring to Figure 11, when being positioned by the 12 pairs of terminals 10 in base station, this base station 12 comprises:
Acquiring unit 122 as a result, are used to obtain the auxiliary positioning measurement result that described terminal 10 records.
Preferably, referring to Figure 12, when being positioned by 13 pairs of terminals 10 of the centre of location, and the centre of location 13 is when being arranged in core net, and base station 12 comprises:
Acquiring unit 122 as a result, are used to obtain the auxiliary positioning measurement result that described terminal 10 records.
Transmitting element 125 is used for auxiliary positioning measurement result that described terminal 10 is reported, and the AOA of described terminal 10, sends to the centre of location 13.
When being positioned by 13 pairs of terminals 10 of the centre of location, and the centre of location 13 is positioned at core net when outer, and base station 12 comprises:
Acquiring unit 122 as a result, are used to obtain the auxiliary positioning measurement result that described terminal 10 records.
Transmitting element 125 is used for auxiliary positioning measurement result that described terminal 10 is reported, and the AOA of described terminal 10, sends to the centre of location 13.
Preferably, described trigger element 121, by medium access control physical data unit MAC PDU, the triggering message that the triggering auxiliary positioning measurement result is reported sends to described terminal 10.
Preferably, described acquiring unit as a result 122 by medium access control physical data unit MACPDU, obtains the auxiliary positioning measurement result that described terminal 10 reports.
In sum, the technical scheme that the embodiment of the invention provides comprises: when needing terminal to measure auxiliary network to the parameter of terminal positioning, network side sends the measuring command of being correlated with to terminal by descending MAC PDU; Terminal is received the measurement of the laggard line correlation of measuring command and by up MAC PDU measurement result is reported network side; The locating module of network side positions terminal according to the measurement result of terminal to report and the measurement result of base station.Wherein, the measurement result of terminal to report can be TA, also can be TA+SFN, and the value of TA can be that the single measurement result also can be repeatedly the mean value of measurement result; Except reporting TA to measure, also can report the required measurement parameter of other localization methods, as the measuring amount in the OTDOA method " observed time difference " etc.For the measurement of network side,, can be that the single measurement result also can be repeatedly the mean value of measurement result as AOA.When locating module positions calculating, can adopt the single result to position, also positioning result repeatedly can be averaged as final positioning result.
By the technical scheme that the embodiment of the invention provides, make in the LTE system can support terminal assist location, make that the terminal auxiliary network location in the LTE system becomes possibility.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (22)
1. an information getting method is characterized in that, this method comprises:
The base station sends to terminal and triggers the triggering message that auxiliary positioning measurement result reports, and described auxiliary positioning measurement result is used for this terminal is positioned, and contains in the described triggering message to be used to indicate described terminal to carry out the indication information that assist location is measured;
The base station obtains the auxiliary positioning measurement result that described terminal records according to described indication information.
2. method according to claim 1 is characterized in that, described base station comprises to the step of the message that terminal transmission triggering auxiliary positioning measurement result reports:
The base station receives the locating request message that core net sends, and sends the triggering message that the triggering auxiliary positioning measurement result reports according to described locating request message to terminal.
3. method according to claim 1 is characterized in that, this method also comprises:
The arrival bearing AOA of described terminal is determined in the base station;
Described base station is according to the auxiliary positioning measurement result of described terminal to report, and described AOA, described terminal is positioned, and positioning result is reported core net.
4. method according to claim 1 is characterized in that, this method also comprises:
The arrival bearing AOA of described terminal is determined in the base station;
Described base station is with the auxiliary positioning measurement result of described terminal to report, and described AOA, sends to the centre of location;
The auxiliary positioning measurement result that the described centre of location records according to described terminal, and described AOA position described terminal.
5. method according to claim 4 is characterized in that, this method also comprises:
The described centre of location will feed back to described base station to the positioning result of described terminal;
Described base station reports core net with described positioning result.
6. according to the described method of the arbitrary claim of claim 1 to 5, it is characterized in that described triggering message sends to described terminal by medium access control physical data unit MAC PDU.
7. method according to claim 6 is characterized in that, described indication information comprises: indicating terminal carries out reporting of one or many auxiliary positioning measurement result;
Described indication information is by the Logic Channel Identifier LCID indication among of the medium access control among the described MAC PDU MACsubheadder.
8. method according to claim 7 is characterized in that, when described indication information comprise indicating terminal carry out repeatedly auxiliary positioning measurement result on give the correct time, described indication information also comprises: auxiliary positioning measurement result report number of times;
Described auxiliary positioning measurement result report number of times, by the indication of the reserved bit among the MACsubheadder among the described MAC PDU, perhaps, by the reserved bit indication of the medium access control element M AC CE among the described MAC PDU.
9. according to the described method of the arbitrary claim of claim 1 to 5, it is characterized in that the step that described base station obtains described auxiliary positioning measurement result comprises:
Described base station obtains described auxiliary positioning measurement result by medium access control physical data unit MAC PDU.
10. method according to claim 9 is characterized in that, described base station is by MAC PDU, and the step of obtaining described auxiliary positioning measurement result comprises:
The medium access control element M AC CE type among the described MAC PDU is determined by the Logic Channel Identifier LCID of of the medium access control among a MAC PDU MAC subheadder in described base station;
Described base station obtains the auxiliary positioning measurement result among this MAC CE according to the indication of described MAC CE type.
11. method according to claim 10 is characterized in that, described base station is according to the indication of described MACCE type, and the step of obtaining the auxiliary positioning measurement result among this MAC CE comprises:
Described base station is determined to contain the auxiliary positioning measurement result that terminal once records among the described MAC CE according to the indication of described MAC CE type, or a plurality of auxiliary positioning measurement result that repeatedly record;
Described base station obtains the number of auxiliary positioning measurement result, and obtains auxiliary positioning measurement result according to this number from described MAC CE.
12. method according to claim 11 is characterized in that, the step that described base station obtains the number of auxiliary positioning measurement result comprises:
Described base station obtains the number of auxiliary positioning measurement result from the reservation bit of described MAC subheadder or described MAC CE.
13. a communication system is characterized in that, this system comprises:
The core net device is used for sending locating request message to the base station;
The base station, be used to receive described locating request message, and send to trigger the triggering message that auxiliary positioning measurement result reports to terminal according to described locating request message, described auxiliary positioning measurement result is used for this terminal is positioned, and contains in the described triggering message to be used to indicate described terminal to carry out the indication information that assist location is measured; Obtain the auxiliary positioning measurement result that described terminal records according to described indication information.
14. system according to claim 13 is characterized in that, described base station also is used for determining the arrival bearing AOA of described terminal; And according to the auxiliary positioning measurement result of described terminal to report, and described AOA, described terminal is positioned, and positioning result is reported described core net device.
15. system according to claim 13 is characterized in that, described base station also is used for determining the arrival bearing AOA of described terminal; And with the auxiliary positioning measurement result of described terminal to report, and described AOA, send to the centre of location;
Described system also comprises:
The centre of location is used for the auxiliary positioning measurement result that records according to the terminal that described base station sends, and described AOA, and described terminal is positioned.
16. system according to claim 15 is characterized in that, the described centre of location also is used for the positioning result to described terminal is fed back to described base station;
Described base station also is used for the positioning result of described centre of location feedback is reported described core net device.
17. a base station is characterized in that, this base station comprises:
Trigger element, be used for sending the triggering message that the triggering auxiliary positioning measurement result reports to terminal, described auxiliary positioning measurement result is used for this terminal is positioned, and contains in the described triggering message to be used to indicate described terminal to carry out the indication information that assist location is measured;
Acquiring unit is used to obtain the auxiliary positioning measurement result that described terminal records according to described indication information as a result.
18. base station according to claim 17 is characterized in that, described base station also comprises:
The AOA determining unit is used for determining the arrival bearing AOA of described terminal;
Positioning unit is used for the auxiliary positioning measurement result according to described terminal to report, and described AOA, described terminal is positioned, and positioning result is reported core net.
19. base station according to claim 17 is characterized in that, described base station also comprises:
The AOA determining unit is used for determining the arrival bearing AOA of described terminal;
Transmitting element is used for the auxiliary positioning measurement result with described terminal to report, and described AOA, sends to the centre of location.
20. base station according to claim 19 is characterized in that, described base station also comprises:
Report the unit, be used for the auxiliary positioning measurement result that records according to described terminal of described centre of location feedback and described AOA are reported core net to the positioning result of this terminal.
21., it is characterized in that described trigger element by medium access control physical data unit MAC PDU, sends to described terminal with described triggering message according to the described base station of the arbitrary claim of claim 17 to 20.
22., it is characterized in that described acquiring unit as a result by medium access control physical data unit MAC PDU, obtains described auxiliary positioning measurement result according to the described base station of the arbitrary claim of claim 17 to 20.
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| CN200910085053.7A CN101895922B (en) | 2009-05-20 | 2009-05-20 | Information acquisition method, system and device |
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