WO2014019454A1 - 应用于多载波系统的终端定位 - Google Patents

应用于多载波系统的终端定位 Download PDF

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Publication number
WO2014019454A1
WO2014019454A1 PCT/CN2013/079529 CN2013079529W WO2014019454A1 WO 2014019454 A1 WO2014019454 A1 WO 2014019454A1 CN 2013079529 W CN2013079529 W CN 2013079529W WO 2014019454 A1 WO2014019454 A1 WO 2014019454A1
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Prior art keywords
target terminal
positioning
base station
signal transmission
transmission quality
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PCT/CN2013/079529
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English (en)
French (fr)
Inventor
全海洋
傅婧
梁靖
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电信科学技术研究院
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Publication of WO2014019454A1 publication Critical patent/WO2014019454A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Definitions

  • the present invention relates to the field of wireless communications, and in particular, to a terminal positioning method and apparatus applied to a multi-carrier system. Background of the invention
  • LTE-A LTE Evolution, LTE evolution, where LTE is Long Term Evolution
  • LTE-A systems require good compatibility with LTE systems.
  • CA Carrier Aggregation
  • the carrier aggregation technology refers to a mechanism in which a UE (User Equipment) can simultaneously aggregate multiple cells (cells), and multiple cells can simultaneously provide data transmission services for the UE.
  • the carriers corresponding to the respective cells may be continuous or discontinuous in the frequency domain.
  • the maximum bandwidth of each component carrier is 20 MHz, and the bandwidth between the member carriers may be the same or different. Summary of the invention
  • the embodiment of the present application provides a terminal positioning method and a device applied to a multi-carrier system.
  • the TA+AOA positioning method is used to achieve terminal position positioning and improve positioning accuracy.
  • the base station After receiving the request of the positioning server to locate the target terminal, the base station requests the target terminal to report the positioning related measurement result on the designated serving cell, where the base station performs the target terminal on the corresponding serving cell of the target terminal. Positioning related measurements;
  • the base station After receiving the positioning-related measurement result reported by the target terminal, the base station reports the positioning-related measurement result of the target terminal and the positioning-related measurement result measured by the target terminal to the positioning server, so that the The positioning server locates the target terminal according to the positioning related measurement result of the target terminal and the base station.
  • the positioning server requests the base station to locate the target terminal, to trigger the base station to request the target terminal to report the positioning related measurement result on the designated serving cell, and trigger the base station to locate the target terminal on the corresponding serving cell.
  • the positioning server Receiving, by the positioning server, a response returned by the base station, where the positioning related measurement result of >3 ⁇ 4 on the target terminal and the positioning related measurement result measured by the base station are carried; the positioning server according to the received positioning related measurement As a result, the target terminal is located.
  • the base station device provided by the embodiment of the present application includes a memory, and a reference command with the memory, a measurement start command, and a measurement report instruction, where
  • the measuring cell determining instruction is used to indicate that after receiving the request that the positioning server locates the target terminal, the serving cell that performs the positioning related measurement is specified;
  • the measurement start instruction is used to indicate that after receiving the request that the positioning server locates the target terminal, requesting the target terminal to report the positioning related measurement result on the designated serving cell, and the corresponding designation in the target terminal Locating and correlating the target terminal on the serving cell;
  • the measurement reporting instruction is configured to: after receiving the positioning related measurement result reported by the target terminal, report the positioning related measurement result of the target terminal and the positioning related measurement result measured by the base station to the target terminal.
  • the positioning server is configured to enable the positioning server to locate the target terminal according to the positioning related measurement result of the target terminal and the base station.
  • the positioning server provided by the embodiment of the present application includes a memory, and the memory instruction and the positioning processing instruction, wherein
  • the positioning request instruction is used to indicate that the requesting base station locates the target terminal, to trigger the base station to request the target terminal to report the positioning related measurement result in the designated serving cell, and trigger the base station to be in the corresponding designated serving cell pair.
  • the target terminal performs positioning related measurement
  • the positioning processing instruction is configured to receive a response returned by the base station, where the positioning related measurement result reported by the target terminal and the positioning related measurement result measured by the base station are carried, and according to the received positioning related measurement As a result, the target terminal is located.
  • the base station when the base station requests the target terminal to report the location-related measurement, the base station specifies the serving cell, and the target terminal is required to report the positioning-related measurement result of the designated serving cell, and the base station
  • the positioning related measurement is performed on the corresponding cell, so that the positioning related measurement is targeted, and a person skilled in the art can specify a cell for performing the positioning related measurement according to the positioning accuracy requirement, so that the above-mentioned Embodiments improve terminal positioning accuracy.
  • Figure 1 is a schematic diagram of the positioning principle of the TA+AOA positioning technology
  • FIG. 2 is a schematic diagram of a TA+AOA positioning process according to Embodiment 1 of the present application;
  • FIG. 3 is a schematic diagram of a TA+AOA positioning process according to Embodiment 2 of the present application.
  • FIG. 4 is a schematic diagram of a TA+AOA positioning process according to Embodiment 3 of the present application.
  • FIG. 5 is a schematic diagram of a TA+AOA positioning process according to Embodiment 4 of the present application.
  • FIG. 6 is a schematic diagram of a TA+AOA positioning process provided in Embodiment 5 of the present application.
  • FIG. 7 is a schematic structural diagram of a base station device according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a positioning server according to an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of another base station device according to an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of another positioning server according to an embodiment of the present application. Mode for carrying out the invention
  • the cell working in the terminal is divided into a primary cell PCell (Primary Cell) and a number of secondary cells SCell (Second Cell).
  • the primary cell undertakes most of the control and signaling operations, such as sending uplink feedback to the downlink data. , CQI (Channel Quality Indicator) reporting, uplink pilot transmission, etc.
  • the secondary cell is mainly used as a resource to undertake data transmission.
  • different uplinks may exist on different carriers because different carriers may have different propagation environments (for example, different frequencies, or the network side does not share the propagation environment). Therefore, the same terminal may have different uplink timing advances on different carriers. .
  • the network location-based terminal location location technology includes CELL-ID positioning technology and TA+AOA positioning technology.
  • the CELL-ID positioning method is based on the cell coverage-based positioning method, and uses the known serving cell geographic information to estimate the location of the target UE.
  • the serving cell information can be obtained by means of calling, paging, TA (Tracking Area) update, and the like.
  • the TA+AOA positioning method considers the timing advance (ie, TA, Timing Advance) and the direction of the incoming wave (ie, AOA, Angle of Arrival) based on the CELL-ID positioning method to achieve more accurate positioning.
  • the base station obtains the AOA of the UE transmitting signal through the smart antenna, and the UE is on the ray starting from the base station, and the angle of the ray rotating counterclockwise from the north direction is AOA.
  • the principle of the TA+AOA positioning technology is as follows: The TA can be obtained by reporting the time difference between the UE receiving and transmitting, and the time difference between the receiving and transmitting measured by the base station (the TA calculated by this method is called TA TYPE1). It can also be measured by the base station through a dedicated random access procedure (the TA calculated by this method is called TA TYPE2). The multiplied by the speed of light by 2 is the distance between the UE and the base station. As shown in Figure 1, the UE is on the circumference centered on the base station and the distance between the terminal and the base station. The angle information of the AOA can be obtained. The location of the terminal.
  • the location of the terminal is mainly related to the following steps:
  • the positioning server obtains the measurement capability of the terminal, determines the required measurement quantity, and requests the base station to start the relevant measurement.
  • the base station reports the relevant measurement result and location information to the positioning server, and the positioning server performs the following steps: Location calculation.
  • the terminal In TA typel, the terminal is required to provide a measurement result of the UE Rx-Tx time difference (ie, the time difference between UE reception and transmission).
  • the accuracy requirements of this measurement are shown in the 36.133 protocol: Table 1.
  • UE Rx-Tx time difference measurement accuracy requirements Paramet Unit Conditions (condition) er Downlin (single Accurac Bands Bands Bands Band 26 Bands Bands c parameter) k bit) y (fine 1, 4, 6, 2, 5, 7, 25 3, 8, 12, 9, 42,
  • Ts is the basic timing unit defined in TS 36.211 (Ts is the basic time unit defined in the TS 36.211 standard).
  • the condition is -119dBm/ 15kHz ... -5 OdBm/B Wchannei when the carrier frequency of the assigned E-UTRA channel bandwidth is within 865-894 MHz (when the carrier frequency allocated to the E-UTRA channel bandwidth is For conditions of 865-894 MHz, the condition is -119dBm/15kHz ... -50dBm/BW clmime i )
  • Table 1 shows the UE Rx-Tx time difference at the signal-to-noise ratio ( £s/Iot ) >-3dB Measurement accuracy requirements.
  • the measurement bandwidth is ⁇ 3MHz, the accuracy is ⁇ 20Ts; when the measurement bandwidth is ⁇ 5MHz, the measurement accuracy is ⁇ 10Ts.
  • the signal-to-noise ratio is lower than -3db, and there is no accuracy requirement, which means that in this case, the measurement accuracy will be poor, and it is likely to be less than ⁇ 20Ts.
  • the TA+AOA positioning method is applied only to the primary serving cell and is a single cell positioning method.
  • the positioning effect depends on the measurement effect of the cell. In fact, the measurement accuracy of TA and AOA will be affected by factors such as environment, signal strength, interference, etc.
  • the multipath effect may be different at different frequencies. In the case of poor signal quality, low signal-to-noise ratio, and small bandwidth, the accuracy of the measurement is not high.
  • the terminal can work in multiple cells at the same time, and can only perform TA+AOA positioning on the Pcell (Primary Cell). On the Pcell In the case where the channel quality is degraded, the accuracy of the measurement may deteriorate.
  • the embodiment of the present application provides a serving cell that performs TA+AOA according to the bandwidth of each serving cell of the terminal, and/or the signal receiving quality, in the multi-carrier aggregation scenario. Therefore, the method of positioning the terminal is used to improve measurement accuracy and positioning accuracy.
  • the base station after receiving the positioning request of the positioning server to the target terminal, the base station selects a cell suitable for performing location-related measurement in the serving cell of the target terminal, and then starts the terminal to perform positioning-related measurement in the cell, and The base station also performs positioning and correlation measurement on the target terminal in the corresponding cell. After receiving the measurement result reported by the target terminal, the base station sends the positioning related measurement result of the base station and the target terminal to the positioning server for terminal positioning.
  • the process can include:
  • Step 201 The UE initiates a positioning request to the mobility management entity (Mobility Management Entity, ⁇ ) through a Non-Access Stadium (NAS) message, and requests to obtain its own location information.
  • An optional implementation of this step is:
  • a location service client (Landstation Service Client, LCS client) initiates a location request to the MME to obtain location information of a certain UE.
  • Step 202 The MME initiates a location request to an Evolved Serving Mobile Location Center (E-SMLC).
  • E-SMLC Evolved Serving Mobile Location Center
  • Steps 203a to 203b The E-SMLC queries and acquires the positioning capability information of the UE.
  • Steps 204a to 204c The E-SMLC obtains the positioning related measurement result of the evolved Node B, that is, the base station (evolved NodeB, eNB) and the information of the serving cell.
  • the eNB After receiving the LPPa measurement request message sent by the E-SMLC (step 204a), the eNB obtains the information of the target UE, determines that it works on the multi-cell, and acquires the aggregated serving cell used by the target UE. Selecting a cell suitable for performing location-related measurement, and transmitting measurement configuration information to the UE by using a Radio Resource Control (RRC) measurement control message, where the cell selected by the eNB is indicated to start the UE in the cell.
  • RRC Radio Resource Control
  • the UE measures the UE Rx-Tx Time difference and the AOA (step 205a), and the UE performs the positioning-related measurement according to the indication of the eNB, and reports the measurement result to the eNB through the RRC measurement report (step 205c). ). And, the eNB itself also measures the UE Rx-Tx Time difference and AOA of the UE in the selected cell (step 205b).
  • the cell selected by the e NB may be a Pcell in the serving cell of the target UE, or may be an Scell.
  • the eNB may select the cell with the widest bandwidth among the serving cells of the target UE, and may also select the cell with the best signal transmission quality in the serving cell of the target UE (for example, the bandwidth of the aggregated carrier used by the UE is relatively wide, for example, In the case of 20 MHz, the cell with the best signal transmission quality among the serving cells with the widest bandwidth of the target UE can also be selected.
  • the signal transmission quality may be the reception quality of the measurement signal.
  • Signal transmission quality can be measured using Reference Signal Receiving Quality (RSRQ) or signal-to-noise ratio.
  • RSRQ Reference Signal Receiving Quality
  • the eNB may select a cell to perform positioning measurement according to the RSRQ or the signal to noise ratio of each serving cell that the UE has reported.
  • the eNB After receiving the RRC measurement report of the UE (step 205c), the eNB calculates according to the UE Rx-Tx Time difference measured by the UE in the selected cell and the UE Rx-Tx Time difference measured by the eNB in the selected cell.
  • Step 206 The E-SMLC calculates the location information of the UE according to the measurement result reported by the eNB and other aspects of the input.
  • the measurement result reported by the eNB to the E-SMLC includes the calculated TA TYPE1 and the AOA measured by the UE and the eNB on the selected cell.
  • the E-SMLC locates the UE according to the TA TYPE1 reported by the eNB and the AOA measured by the UE and the eNB.
  • Step 207 The E-SMLC sends the positioning result (location information) to the MME.
  • Step 208 The MME sends the positioning result (location information) to the UE or the LCS client.
  • the E-SMLC may carry indication information in the LPPa measurement request message sent to the eNB, to indicate that the eNB performs location-related measurement on the target UE in the cell with the best signal transmission quality.
  • the eNB selects a cell with the best signal transmission quality from the serving cell of the target UE, performs location-related measurement on the target UE on the cell, and starts the target UE to perform location-related measurement on the cell.
  • the base station selects the bandwidth with the widest bandwidth, and/or the cell with the best signal receiving quality, in each serving cell of the target terminal, and starts the target.
  • the terminal performs TA+AOA measurement in the cell
  • the base station also performs TA+AOA measurement in the corresponding cell, so that the positioning server performs terminal positioning according to the measurement result, thereby improving the accuracy of terminal positioning.
  • the base station after receiving the positioning request of the positioning server to the target terminal, the base station selects a plurality of cells suitable for performing positioning related measurement in the serving cell of the target terminal, and then starts the terminal to perform positioning related measurement in the multiple cells. And the base station also performs positioning and correlation measurement on the target terminal in the corresponding cell; after receiving the measurement result of the target terminal, the base station further selects a measurement result of the cell suitable for the positioning measurement, and then the base station and the target The measurement result of the terminal on the selected cell is sent to the positioning server for terminal location. As shown in FIG. 3, the process may include:
  • Step 301 The UE initiates a positioning request to the MME by using a NAS layer message, and requests to obtain its own location information.
  • An optional implementation of this step is:
  • An LCS client initiates a location request to the MME to request location information of a certain UE.
  • Step 302 The MME initiates a location request to the E-SMLC.
  • Steps 303a to 303b The E-SMLC queries and acquires the positioning capability information of the UE.
  • Steps 304a to 304c The E-SMLC acquires related measurement results of the eNB and information of the serving cell.
  • the eNB After receiving the LPPa measurement request message sent by the E-SMLC (step 304a), the eNB obtains the information of the target UE, determines that it works on the multi-cell, and acquires the aggregated serving cell used by the target UE. Selecting a plurality of cells suitable for performing location-related measurement, and transmitting measurement configuration information to the UE by using an RRC measurement control message, where the cell selected by the eNB is indicated, to enable the UE to measure the UE Rx-Tx Time difference on the cells. And the AOA (step 305a), the UE performs the positioning related measurement according to the indication of the eNB, and reports the measurement result to the eNB through the RRC measurement report (step 305c). And, the eNB itself also measures the UE Rx-Tx Time difference and AOA of the UE in the selected cell (step 305b).
  • e NB selected cell may be a serving cell of the UE in the target Pcell and Scell, or select multiple Scell.
  • the eNB may select the widest bandwidth in the serving cell of the target UE (in the case where there are multiple such cells) or a plurality of cells in the wider cell, and may also select the best signal transmission quality in the serving cell of the target UE.
  • the cell in the case where there are a plurality of such cells
  • the signal transmission quality may be the reception quality of the measurement signal.
  • Signal transmission quality can be measured using RSRQ or signal to noise ratio.
  • the eNB may be based on each serving cell that the UE has reported. RSRQ or signal to noise ratio to select the cell to perform the positioning measurement. For example, the eNB can learn the signal-to-noise ratio of each serving cell of the UE according to the indication information of whether the signal-to-noise ratio of each cell reported by the UE is greater than a preset threshold (for example, -3db), as the basis for the cell selection operation.
  • a preset threshold for example, -3db
  • the indication information may be 1101, indicating whether the signal to noise ratio of the corresponding cell is greater than a set threshold, that is, the signal to noise ratio of the cells 0, 1 and 3 is greater than a set threshold, and the signal to noise ratio of the cell 2 is less than Set the threshold.
  • the eNB After receiving the RRC measurement report of the UE (step 305c), the eNB further selects a measurement result of one cell according to the UE Rx-Tx Time difference measured by the UE in the selected cell and the measured by the eNB in the selected cell.
  • UE Rx-Tx Time difference calculated as TA TYPE 1.
  • the positioning of each cell may be reported by e NB correlation measurements from the UE select a cell suitable for positioning measurements to be reported.
  • the eNB may select the cell with the widest bandwidth, and may also select the cell with the best signal transmission quality, and may also select the cell with the best signal transmission quality among the cells with the widest bandwidth of the target UE.
  • Step 306 The E-SMLC calculates the location information of the UE according to the measurement result reported by the eNB and other aspects.
  • the measurement result reported by the eNB to the E-SMLC includes the calculated TA TYPE1 and the AOA measured by the UE and the eNB in the selected cell.
  • the E-SMLC locates the UE according to the TA TYPE1 reported by the eNB and the AOA measured by the UE and the eNB.
  • Step 307 The E-SMLC sends the positioning result (location information) to the MME.
  • Step 308 The MME sends the positioning result (location information) to the UE or the LCS client.
  • the eNB may carry indication information (herein referred to as first indication information) in the RRC measurement control message sent to the UE, to instruct the UE to report the measured information.
  • Signal transmission quality information of the cell The UE performs measurement of the signal transmission quality on the designated cell according to the indication information, such as measuring the RSRQ of the designated cell or measuring the signal to noise ratio of the designated cell.
  • the UE may send the signal transmission quality information of the specified cell to the eNB through the RRC measurement, as the basis for the eNB to select the serving cell to report the measurement result. For the measured signal transmission quality information and the positioning related measurement result, the UE may separately report to the eNB, or report the signal to the eNB separately.
  • the base station performs processing according to the content of the two measurement reports. Further, the UE may also indicate the measured cell in the RRC measurement report, for example, the corresponding reported measurement result carries the corresponding cell identifier to identify the measurement result of which cell.
  • the E-SMLC may carry indication information (herein referred to as second indication information) in the LPPa measurement request message sent to the eNB, to indicate that the base station performs location-related measurement of the cell with the best signal transmission quality. The result is sent to the E-SMLC.
  • second indication information indication information
  • the base station in the process of locating the target terminal, starts the target terminal to perform TA+AOA measurement in multiple cells, and further selects the widest bandwidth in the measurement result reported by the target terminal. And/or, the signal receiving the measurement result of the cell with the best quality, and reporting the selected measurement result and the measurement result of the base station on the corresponding cell to the positioning server, so that the positioning server performs terminal positioning according to the measurement result, Thereby improving the accuracy of terminal positioning.
  • the base station after receiving the positioning request of the positioning server to the target terminal, the base station selects a plurality of cells suitable for performing positioning related measurement in the serving cell of the target terminal, and then starts the terminal to perform positioning related measurement in the multiple cells. And the base station also performs positioning and correlation measurement on the target terminal in the corresponding cell; after receiving the measurement result of the target terminal, the base station sends the measurement result of the base station and the target terminal on the multiple cells to the positioning.
  • the server further selects a measurement result of a suitable cell by the positioning server to perform terminal positioning. As shown in FIG. 4, the process may include:
  • Steps 401 ⁇ 404c Basically the same as steps 301 ⁇ 304c in the flow shown in Figure 3, the differences are:
  • the eNB After receiving the RRC measurement report of the UE (step 405c), the eNB measures the location-related measurement result of the UE in the measurement report and the positioning related measurement result of the eNB itself in the corresponding cell, and measures the response message by using the LPPa. Send to E-SMLC.
  • the eNB may carry the indication information in the RRC measurement control message sent to the UE, to indicate that the UE reports the signal transmission quality information of the measured cell.
  • the UE measures the signal transmission quality of the corresponding cell according to the indication of the eNB, and sends the signal transmission quality information of the cells to the eNB (for example, may be sent to the eNB through an RRC measurement report or a new message).
  • the eNB carries the signal transmission quality information of the cells to the E-SMLC, and can also be sent to the E-SMLC through the newly added message, as the basis for the E-SMLC to select the serving cell for positioning calculation.
  • the UE may also indicate the measured cell in the RRC measurement report, for example, the corresponding measurement result carries the corresponding cell identifier to identify the measurement result of which cell.
  • Step 406 The E-SMLC calculates the location information of the UE according to the measurement result reported by the eNB and other aspects of the input.
  • the E-SMLC selects a measurement result of one cell, according to the UE Rx-Tx Time difference measured by the UE in the selected cell, and the measured by the eNB in the selected cell.
  • the UE Rx-Tx Time difference is calculated as TA TYPE1, and the UE is located according to the TA TYPE1 and the AOA measured by the UE and the eNB in the selected cell.
  • the E-SMLC can select the cell with the widest bandwidth among the cells; or select the signal transmission quality in the cells according to the signal transmission quality information of each cell reported by the eNB. Or the best cell; or, according to the signal transmission quality information of each cell reported by the eNB, the cell with the best signal transmission quality among the cells with the widest bandwidth among the cells is selected.
  • the E-SMLC performs positioning calculation according to the positioning related measurement result of the selected cell.
  • Step 407 The E-SMLC sends the positioning result (location information) to the MME.
  • Step 408 The MME sends the positioning result (location information) to the UE or the LCS client.
  • the base station starts the target terminal to perform TA+AOA measurement in multiple cells, and reports the measurement result of the multiple cells to the positioning server.
  • the positioning server selects the measurement result of the cell suitable for the positioning measurement, and performs terminal positioning, thereby improving the accuracy of the terminal positioning.
  • the base station after receiving the positioning request of the positioning server to the target terminal, the base station starts the positioning measurement in all the serving cells, and the base station also performs positioning and correlation measurement on the target terminal in the corresponding cell; After the measurement result of the target terminal is >3 ⁇ 4, the measurement result of the cell suitable for the positioning measurement is selected, and then the measurement result of the base station and the target terminal on the selected cell is sent to the positioning server for terminal positioning.
  • the process can include:
  • Steps 501 ⁇ 504c Basically the same as 301 ⁇ 304c in the flow shown in Figure 3, the difference is:
  • the eNB After receiving the LPPa measurement request message sent by the E-SMLC (step 504a), the eNB sends the measurement configuration information to the UE by using an RRC measurement control message, where the UE is indicated to perform positioning related measurement in all serving cells, or All serving cells of the UE are indicated to the UE to initiate measurement of the UE Rx-Tx Time difference and AOA on all of its serving cells (step 505a), and the eNB itself is also in all services of the UE The cell measures the UE Rx-Tx Time difference and AOA of the UE (step 505b).
  • the eNB After receiving the RRC measurement report of the UE (step 505c), the eNB selects a measurement result of one cell, according to the UE Rx-Tx Time difference measured by the UE in the selected cell, and the UE measured by the eNB in the selected cell. Rx-Tx Time difference, calculated as TA TYPE1.
  • the e NB may select a cell suitable for performing positioning measurement from the positioning related measurement results of each serving cell of the UE for reporting. Specifically, the eNB may select the cell with the widest bandwidth, and may also select the cell with the best signal transmission quality, and may also select the cell with the best signal transmission quality among the cells with the widest bandwidth of the target UE.
  • Step 506 The E-SMLC calculates the location information of the UE according to the measurement result reported by the eNB and other aspects.
  • the measurement result reported by the eNB to the E-SMLC includes the calculated TA TYPE1 and the AOA measured by the UE and the eNB on the selected cell.
  • the E-SMLC locates the UE according to the TA TYPE1 reported by the eNB and the AOA measured by the UE and the eNB.
  • Step 507 The E-SMLC sends the positioning result (location information) to the MME.
  • Step 508 The MME sends the positioning result (location information) to the UE or the LCS client.
  • the eNB may carry indication information (herein referred to as first indication information) in the RRC measurement control message sent to the UE, to instruct the UE to report the signal transmission quality information of the measured cell.
  • the UE performs measurement of the signal transmission quality on each cell according to the indication information, such as measuring the RSRQ of the designated cell or measuring the signal to noise ratio of the designated cell.
  • the UE may send the signal transmission quality information of each cell to the eNB through the RRC measurement report, and serve as a basis for the eNB to select the serving cell to report the measurement result.
  • the UE may separately report to the eNB. It can also be reported to the eNB together. Further, the UE may also indicate the measured cell in the RRC measurement report.
  • the E-SMLC may carry indication information (herein referred to as second indication information) in the LPPa measurement request message sent to the eNB, to indicate that the base station performs location-related measurement of the cell with the best signal transmission quality. The result is sent to the E-SMLC.
  • second indication information indication information
  • the base station may also start the terminal to perform positioning related measurement in some of the serving cells.
  • the terminal location process is basically the same as the process shown in Figure 5, and will not be described here.
  • the base station starts the target terminal to perform TA+AOA measurement in all the serving cells, and further selects the bandwidth in the measurement result reported by the target terminal. Width, and/or, the measurement result of the cell with the best signal reception quality, and the selected measurement result and the measurement result of the base station on the corresponding cell are reported to the positioning server, so that the positioning server performs terminal positioning according to the measurement result. , thereby improving the accuracy of terminal positioning.
  • the base station after receiving the positioning request of the positioning server to the target terminal, the base station starts the positioning measurement in all the serving cells, and the base station also performs positioning and correlation measurement on the target terminal in the corresponding cell; After the measurement result of the target terminal is >3 ⁇ 4, the measurement result of the base station and the target terminal on all serving cells is sent to the positioning server, and the positioning server selects the measurement result of the appropriate cell to perform terminal positioning.
  • the process can be as shown in Figure 6, including:
  • Steps 601 ⁇ 604c Basically the same as 501 ⁇ 504c in the flow shown in Figure 5, the difference is:
  • the eNB After receiving the RRC measurement report of the UE (step 605c), the eNB performs the positioning related measurement result of the UE in the measurement report and the eNB itself in the corresponding cell.
  • the positioning related measurement result is sent to the E-SMLC through the LPPa measurement response message.
  • the eNB may carry the indication information in the RRC measurement control message sent to the UE, to indicate that the UE reports the signal transmission quality information of the measured cell.
  • the UE measures the signal transmission quality of the corresponding cell according to the indication of the eNB, and sends the signal transmission quality information of the cells to the eNB through the RRC measurement report.
  • the eNB carries the signal transmission quality information of these cells to the E-SMLC by carrying the LPPa measurement response message. Further, the UE may also indicate the measured cell in the RRC measurement report.
  • Step 606 The E-SMLC calculates the location information of the UE according to the measurement result reported by the eNB and other aspects of the input.
  • the E-SMLC selects a measurement result of one cell, according to the UE Rx-Tx Time difference measured by the UE in the selected cell, and the measured by the eNB in the selected cell.
  • the UE Rx-Tx Time difference is calculated as TA TYPE1, and the UE is located according to the TA TYPE1 and the AOA measured by the UE and the eNB in the selected cell.
  • the E-SMLC can select the cell with the widest bandwidth in the serving cell of the UE; or, according to the signal transmission quality information of each cell reported by the eNB, select the cell with the best signal transmission quality in the serving cell of the UE; or According to the signal transmission quality information of each cell reported by the eNB, the cell with the best signal transmission quality among the cells with the widest bandwidth among the serving cells of the UE is selected.
  • the E-SMLC performs positioning calculation based on the positioning related measurement results of the selected cell.
  • Step 607 The E-SMLC sends the positioning result (location information) to the MME.
  • Step 608 The MME sends the positioning result (location information) to the UE or the LCS client.
  • the base station may also start the terminal to perform positioning related measurement in some of the serving cells.
  • its terminal The bit flow is basically the same as the process shown in FIG. 6, and details are not described herein again.
  • the base station starts the target terminal to perform the TA+AOA measurement in all the serving cells, and reports the measurement results of all the serving cells to the positioning server.
  • the positioning server selects the measurement result of the cell suitable for the positioning measurement, and performs terminal positioning, thereby improving the accuracy of the terminal positioning.
  • the terminal positioning can be implemented based on the same principle for TA TYPE2, and the positioning accuracy can be improved compared with the existing TA Type2 method.
  • the TA TYPE2 method it is possible to select a cell with a large uplink bandwidth and/or a high uplink signal to noise ratio to perform TA TYPE2 measurement to improve measurement accuracy and positioning accuracy.
  • an embodiment of the present invention further provides a base station device and a positioning server.
  • FIG. 7 is a schematic structural diagram of a base station device according to an embodiment of the present disclosure.
  • the base station device may include: a measurement cell determining module 701, a measurement starting module 702, and a measurement reporting module 703, where:
  • the measurement cell determining module 701 is configured to: after receiving the request that the positioning server locates the target terminal, specify a serving cell that performs positioning related measurement;
  • the measurement initiation module 702 is configured to: after receiving the request for the location server to locate the target terminal, request the target terminal to report the positioning related measurement result in the designated serving cell, and the corresponding serving cell pair in the target terminal The target terminal performs positioning related measurement;
  • the measuring upper module 703 is configured to: after receiving the positioning related measurement result of the target terminal, report the positioning related measurement result of the target terminal on the target terminal and the positioning related measurement result measured by the base station to the measurement result Locating the server such that the positioning server is based The positioning related measurement result of the target terminal and the base station locates the target terminal.
  • the measurement cell determining module 701 may specify one of the following serving cells of the target terminal as a serving cell for performing positioning related measurement:
  • the service cell with the best signal transmission quality is the service cell with the best signal transmission quality
  • the service cell with the best signal transmission quality in the widest bandwidth cell is the service cell with the best signal transmission quality in the widest bandwidth cell.
  • the request for positioning the target terminal by the positioning server carries the indication information, and is used to indicate that the base station performs positioning and related measurement on the target terminal in the serving cell with the best signal transmission quality.
  • the measurement initiation module 702 can request, according to the indication information, the target terminal to report the positioning related measurement result of the serving cell with the best signal transmission quality, and the signal transmission quality is best in the serving cell of the target terminal. The cell performs positioning related measurement on the target terminal.
  • the measurement cell determining module 701 may further specify the following cell of the target terminal as a serving cell for performing positioning related measurement: at least two serving cells having the widest bandwidth, or at least two services whose signal transmission quality is greater than a set threshold. Community.
  • the measurement reporting module 703 may select a serving cell with the best signal transmission quality according to the signal transmission quality of the at least two serving cells after receiving the positioning related measurement result reported by the target terminal, and select the target cell
  • the terminal and the base station report the positioning related measurement result of the selected serving cell with the best signal transmission quality to the positioning server; or, after receiving the positioning related measurement result reported by the target terminal, the target is The positioning related measurement result of the terminal and the base station in the at least two serving cells, and the signal transmission quality information of the at least two serving cells are reported to the positioning server.
  • the measurement cell determination module 701 can also specify all or part of the serving cells of the target terminal as cells for positioning related measurements.
  • the measurement upper module 703 can receive the After the positioning related measurement result reported by the target terminal, selecting a serving cell with the best signal transmission quality according to the signal transmission quality of all or part of the serving cells of the target terminal, and the target terminal and the base station are located at the target terminal Locating the location-related measurement result of the selected serving cell with the best signal transmission quality to the positioning server; or, after receiving the positioning related measurement result of the target terminal, the target terminal and the base station The positioning related measurement result of the all or part of the serving cell of the target terminal, and the signal transmission quality information of each serving cell of the target terminal are reported to the positioning server.
  • the request for positioning the target terminal by the positioning server carries the indication information, which is used to indicate the positioning related measurement result of the serving cell with the best signal transmission quality reported by the base station.
  • the measurement reporting module 703 can perform an operation of selecting a serving cell with the best signal transmission quality according to the signal transmission quality of the serving cell after receiving the positioning related measurement result reported by the target terminal according to the indication information.
  • the measurement initiation module 702 may send the indication information in the message requesting the target terminal to report the location-related measurement result of the specified serving cell, to indicate that the terminal reports the signal transmission quality information of the serving cell.
  • the measurement reporting module 703 performs an operation of selecting a serving cell in which the signal transmission quality is the best according to the signal transmission quality of the serving cell, the signal transmission quality information is a signal reported by the target terminal according to the indication information. Transfer quality information.
  • the measurement initiation module 702 may send the indication information in the message requesting the target terminal to report the location-related measurement result of the specified service cell, and is used to indicate the signal transmission quality information reported by the terminal to the serving cell.
  • the measurement reporting module 703 may report the serving cell signal transmission quality information to the positioning server after receiving the quality information of the serving cell signal reported by the target terminal according to the indication information.
  • the signal transmission quality information includes: RSRQ or/and a carrier signal to noise ratio.
  • the location server may include: a location requesting module 801 and a location processing module 802, where: the location requesting module 801 is configured to request the base station to locate the target terminal, to trigger the base station to request the target terminal to report the location correlation in the designated serving cell.
  • the positioning processing module 802 is configured to receive a response returned by the base station, where the positioning related measurement result reported by the target terminal is carried And performing positioning related measurement results measured by the base station, and positioning the target terminal according to the received positioning related measurement result.
  • the designated serving cell is one of the following serving cells of the target terminal: a service cell with the widest bandwidth;
  • the service cell with the best signal transmission quality is the service cell with the best signal transmission quality
  • the service cell with the best signal transmission quality in the widest bandwidth cell is the service cell with the best signal transmission quality in the widest bandwidth cell.
  • the location requesting module 801 carries the indication information in the request for the location of the target terminal, and is used to instruct the base station to perform location-related measurement on the target terminal in the service cell with the best signal transmission quality.
  • the designated serving cell is the following serving cell of the target terminal: at least two serving cells with the widest bandwidth, or at least two serving cells whose signal transmission quality is greater than a set threshold; a positioning-related measurement result carried in the response, a positioning-related measurement result of the target cell and the base station in a serving cell with the best signal transmission quality, or at least two services for the target terminal and the base station Positioning related measurement results of the cell.
  • the positioning processing module 802 is specifically configured to: if the positioning related measurement result carried in the response is a positioning related measurement result of the target terminal and the base station in the at least two serving cells, according to the at least The signal transmission quality of the two serving cells is selected, and the serving cell with the best signal transmission quality is selected, and the target terminal is selected according to the positioning related measurement result of the selected cell with the best signal transmission quality of the target terminal and the base station.
  • the designated cell is all or part of the serving cell of the target terminal; and the positioning related measurement result carried in the response is a serving cell with the best signal transmission quality of the target terminal and the base station.
  • Positioning related measurement results, or positioning related measurement results of the target terminal and the base station at all or part of the serving cell of the target terminal is specifically configured to: if the positioning related measurement result carried in the response is a positioning related measurement result of the target terminal and the base station in the all or part of the target cell of the target terminal, And selecting, according to the signal transmission quality of all or part of the serving cells of the target terminal, a serving cell in which the signal transmission quality is the best, according to the target terminal and the base station, the selected cell with the best signal transmission quality.
  • the positioning related measurement result locates the target terminal.
  • the present application can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is a better implementation. the way.
  • the technical solution of the present application which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium, including a plurality of instructions for causing a
  • the terminal device (which may be a mobile phone, a personal computer, a server, or a network device, etc.) performs the methods described in the various embodiments of the present application.
  • embodiments of the present application also provide a machine readable storage medium storing instructions for causing a machine to perform a terminal positioning method applied to a multi-carrier system as described herein.
  • a system or apparatus equipped with a storage medium on which software program code implementing the functions of any of the above-described embodiments is stored, and a computer (or CPU or MPU) of the system or apparatus may be stored Reading and executing the program code stored in the storage medium.
  • the program code itself read from the storage medium can implement the functions of any of the above embodiments, and thus the program code and the storage medium storing the program code. It forms part of this application.
  • Storage medium embodiments for providing program code include floppy disks, hard disks, magneto-optical disks, optical disks (such as CD-ROM, CD-R, CD-RW, DVD-ROM, DVD-RAM, DVD-RW, DVD+RW), Tape, non-volatile memory card and ROM.
  • the program code can be downloaded from the server computer by the communication network.
  • the program code read out from the storage medium is written into a memory set in an expansion board inserted into the computer or written in a memory set in an expansion unit connected to the computer, and then based on the program code.
  • the instructions cause the CPU or the like mounted on the expansion board or the expansion unit to perform part and all of the actual operations, thereby realizing the functions of any of the above embodiments.
  • FIG. 9 is a schematic structural diagram of another base station device according to an embodiment of the present application.
  • the base station device 90 can include a memory 901, and a processor 902 in communication with the memory 901, in which the measurement cell determination instruction 9011 and the measurement start instruction 9012 executable by the processor 902 are stored. And the measurement report instruction 9013.
  • the measurement cell determining instruction 9011 is configured to: after receiving the request for positioning the target terminal by the positioning server, specify a serving cell that performs positioning related measurement;
  • the measurement start command 9012 is configured to: after receiving the request that the positioning server locates the target terminal, request the target terminal to report the positioning related measurement result in the designated serving cell, and the corresponding serving cell pair in the target terminal The target terminal performs positioning related measurement;
  • the measurement reporting instruction 9013 is configured to indicate that the positioning related to the target terminal is received After the measurement result, the positioning related measurement result of the target terminal and the positioning related measurement result measured by the base station are reported to the positioning server, so that the positioning server according to the target terminal and the base station The positioning related measurement result locates the target terminal.
  • the measurement cell determining instruction 9011 may specify one of the following service cells of the target terminal as a serving cell for performing positioning related measurement:
  • the service cell with the best signal transmission quality is the service cell with the best signal transmission quality
  • the service cell with the best signal transmission quality in the widest bandwidth cell is the service cell with the best signal transmission quality in the widest bandwidth cell.
  • the request for positioning the target terminal by the positioning server carries the indication information, and is used to indicate that the base station performs positioning and related measurement on the target terminal in the serving cell with the best signal transmission quality.
  • the measurement start command 9012 may be configured to request the target terminal to report the positioning related measurement result of the serving cell with the best signal transmission quality, and the signal transmission quality in the serving cell of the target terminal. The best cell performs positioning related measurements on the target terminal.
  • the measurement cell determining instruction 9011 may also specify the following cell of the target terminal as a serving cell for performing positioning related measurement: at least two serving cells having the widest bandwidth, or at least two services whose signal transmission quality is greater than a set threshold Community.
  • the measurement reporting instruction 9013 may, after receiving the positioning related measurement result reported by the target terminal, indicate that the serving cell with the best signal transmission quality is selected according to the signal transmission quality of the at least two serving cells, And the target terminal and the base station report the positioning related measurement result of the selected serving cell with the best signal transmission quality to the positioning server; or, after receiving the positioning related measurement result of the target terminal, indicating And reporting the positioning related measurement result of the target terminal and the base station in the at least two serving cells, and the signal transmission quality information of the at least two serving cells to the positioning server.
  • the measurement cell determination command 9011 may also specify all or part of the serving cells of the target terminal as cells for positioning related measurements.
  • the measurement reporting instruction 9013 may, after receiving the positioning related measurement result of the target terminal, indicate the signal transmission quality of all or part of the serving cells of the target terminal, and select the signal transmission quality. a good serving cell, reporting, by the target terminal and the base station, the positioning related measurement result of the selected serving cell with the best signal transmission quality to the positioning server; or, receiving the target terminal, "3 ⁇ 4 After the positioning related measurement result, indicating a positioning related measurement result of the target terminal and the base station in the all or part of the serving cell of the target terminal, and signal transmission quality information of each serving cell of the target terminal Reported to the location server.
  • the request for positioning the target terminal by the positioning server carries the indication information, which is used to indicate the positioning related measurement result of the serving cell with the best signal transmission quality reported by the base station.
  • the measurement reporting instruction 9013 may, according to the indication information, after receiving the positioning related measurement result reported by the target terminal, instruct to perform an operation of selecting a serving cell in which the signal transmission quality is the best according to the signal transmission quality of the serving cell.
  • the measurement start command 9012 may indicate that the message requesting the target terminal to report the location-related measurement result of the specified serving cell carries the indication information for indicating the signal transmission quality information reported by the terminal to the serving cell.
  • the measurement reporting instruction 9013 when the operation of selecting the serving cell with the best signal transmission quality according to the signal transmission quality of the serving cell is performed according to the measurement reporting instruction 9013, the signal transmission quality information according to which is reported by the target terminal according to the indication information Signal transmission quality information.
  • the measurement start command 9012 may be configured to: in the message requesting the target terminal to report the location-related measurement result of the specified serving cell, carry the indication information, where the terminal transmits the signal transmission quality information of the serving cell.
  • measuring the reporting instruction 9013 may be configured to report the serving cell signal transmission quality information to the positioning server.
  • the signal transmission quality information includes: RSRQ or/and a carrier signal to noise ratio.
  • 10 is a schematic structural diagram of another positioning server according to an embodiment of the present disclosure.
  • the positioning server 100 may include a memory 1001 and a processor 1002 that communicates with the memory 1001.
  • a location request instruction 10011 and a location processing instruction 10012 executable by the processor are stored in the memory 1001, wherein:
  • the positioning request command 10011 is configured to instruct the requesting base station to locate the target terminal, to trigger the base station to request the target terminal to report the positioning related measurement result in the designated serving cell, and trigger the base station to target the target in the corresponding serving cell.
  • the terminal performs positioning related measurement;
  • a positioning processing instruction 10012 configured to receive a response returned by the base station, where the positioning related measurement result reported by the target terminal and the positioning related measurement result measured by the base station are carried, and the positioning related measurement according to the received location is indicated As a result, the target terminal is located.
  • the designated serving cell is one of the following serving cells of the target terminal: a service cell with the widest bandwidth;
  • the service cell with the best signal transmission quality is the service cell with the best signal transmission quality
  • the service cell with the best signal transmission quality in the widest bandwidth cell is the service cell with the best signal transmission quality in the widest bandwidth cell.
  • the request for positioning the target terminal carries the indication information, and is used to indicate that the base station performs positioning and related measurement on the target terminal in the serving cell with the best signal transmission quality.
  • the designated serving cell is the following serving cell of the target terminal: at least two serving cells with the widest bandwidth, or at least two serving cells whose signal transmission quality is greater than a set threshold; a positioning correlation measurement result carried in the response, a positioning correlation measurement result of the target cell and the base station in a serving cell with the best signal transmission quality Or, the positioning related measurement result of the target terminal and the base station in the at least two serving cells.
  • the positioning processing instruction 10012 is specifically configured to: if the positioning related measurement result carried in the response is a positioning related measurement result of the target terminal and the base station in the at least two serving cells, according to the a signal transmission quality of at least two serving cells, selecting a serving cell in which the signal transmission quality is the best, according to the positioning related measurement result of the target terminal and the base station in the selected cell with the best signal transmission quality to the target The terminal performs positioning.
  • the designated cell is all or part of the serving cell of the target terminal; and the positioning related measurement result carried in the response is a serving cell with the best signal transmission quality of the target terminal and the base station.
  • the positioning processing instruction 10012 is specifically configured to: if the positioning related measurement result carried in the response is a positioning related measurement result of the target terminal and the base station in the all or part of the target cell of the target terminal And selecting, according to the signal transmission quality of all or part of the serving cells of the target terminal, a serving cell in which the signal transmission quality is the best, and selecting the best signal transmission quality according to the target terminal and the base station.
  • the positioning related measurement result of the cell locates the target terminal.

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Abstract

基站接收到定位服务器对目标终端进行定位的请求后，请求所述目标终端上报在指定服务小区的定位相关测量结果，所述基站在所述目标终端的相应服务小区对所述目标终端进行定位相关测量；所述基站接收所述目标终端上上报的定位相关测量结果后，将所述目标终端上的定位相关测量结果与所述基站测量到的定位相关测量结果，上报给所述定位服务器，以使所述定位服务器根据所述目标终端和所述基站的定位相关测量结果对所述目标终端进行定位。

Description

应用于多载波系统的终端定位 本申请要求于 2012 年 8 月 3 日提交中国专利局、 申请号为 201210274886.X, 发明名称为"应用于多载波系统的终端定位方法及设 备"的中国专利申请的优先权， 其全部内容通过引用结合在本申请中。 技术领域
本发明涉及无线通信领域， 尤其涉及应用于多载波系统的终端定位 方法及设备。 发明背景
LTE-A( LTE Advanced, LTE的演进，其中 LTE为 Long Term Evolution 的英文筒称， 即长期演进）系统的峰值速率与 LTE系统相比有很大的提 高，要求达到下行 lGbps,上行 500Mbps。 同时， LTE-A系统要求和 LTE 系统有很好的兼容性。基于提高峰值速率、 与 LTE系统兼容以及充分利 用频谱资源的需要， LTE-A系统引入了载波聚合（Carrier Aggregation, CA )技术。
载波聚合技术是指在 UE ( User Equipment, 用户设备 )可以同时聚 合多个 cell (小区），多个 cell可以同时为 UE提供数据传输服务的机制。 在载波聚合的系统中， 各个 cell对应的载波在频域可以是连续或非连续 的， 为了与 LTE系统兼容， 每个成员载波的最大带宽为 20MHz, 各成 员载波间的带宽可以相同或不同。 发明内容
本申请实施例提供了一种应用于多载波系统的终端定位方法及设 备， 用以在多载波系统中， 采用 TA+AOA定位方法实现终端位置定位， 以及提高定位精度。
本申请实施例提供的一种应用于多载波系统的终端定位方法， 包 括：
基站接收到定位服务器对目标终端进行定位的请求后， 请求所述目 标终端上报在指定服务小区上的定位相关测量结果， 所述基站在所述目 标终端的相应服务小区上对所述目标终端进行定位相关测量；
所述基站接收所述目标终端上报的定位相关测量结果后， 将所述目 标终端上 "¾的定位相关测量结果与自己测量到的定位相关测量结果， 上 报给所述定位服务器， 以使所述定位服务器根据所述目标终端和所述基 站的定位相关测量结果对所述目标终端进行定位。
本申请实施例提供的另一种应用于多载波系统的终端定位方法， 包 括：
定位服务器请求基站对目标终端进行定位， 以触发所述基站请求所 述目标终端上报在指定服务小区上的定位相关测量结果， 以及触发所述 基站在相应服务小区上对所述目标终端进行定位相关测量；
所述定位服务器接收所述基站返回的响应， 其中携带有所述目标终 端上 >¾的定位相关测量结果与所述基站测量到的定位相关测量结果； 所述定位服务器根据接收到的定位相关测量结果对所述目标终端 进行定位。
本申请实施例提供的基站设备， 包括存储器， 以及与所述存储器通 定指令， 测量启动指令和测量上报指令， 其中
所述测量小区确定指令， 用于指示在接收到定位服务器对目标终端 进行定位的请求后， 指定进行定位相关测量的服务小区； 所述测量启动指令， 用于指示在接收到定位服务器对目标终端进行 定位的请求后， 请求所述目标终端上报在指定服务小区上的定位相关测 量结果， 以及在所述目标终端的相应的指定服务小区上对所述目标终端 进行定位相关测量；
所述测量上报指令， 用于指示在接收所述目标终端上报的定位相关 测量结果后， 将所述目标终端上 >¾的定位相关测量结果与所述基站测量 到的定位相关测量结果， 上报给所述定位服务器， 以使所述定位服务器 根据所述目标终端和所述基站的定位相关测量结果对所述目标终端进 行定位。
本申请实施例提供的定位服务器， 包括存储器， 以及与所述存储器 指令和定位处理指令， 其中
所述定位请求指令， 用于指示请求基站对目标终端进行定位， 以触 发所述基站请求所述目标终端上报在指定服务小区的定位相关测量结 果， 以及触发所述基站在相应的指定服务小区对所述目标终端进行定位 相关测量；
所述定位处理指令， 用于指示接收所述基站返回的响应， 其中携带 有所述目标终端上报的定位相关测量结果与所述基站测量到的定位相 关测量结果， 并根据接收到的定位相关测量结果对所述目标终端进行定 位。
本申请的上述实施例中， 针对多载波系统中支持载波聚合的终端， 基站在请求目标终端上报定位相关测量时， 指定服务小区， 要求目标终 端上报指定服务小区的定位相关测量结果， 并且该基站在相应小区上进 行定位相关测量， 从而使定位相关测量具有针对性， 本领域技术人员可 根据定位精度需要， 指定进行定位相关测量的小区， 从而可以利用上述 实施例提高终端定位精度。 附图简要说明
图 1为 TA+AOA定位技术的定位原理示意图；
图 2为本申请实施例一提供的 TA+AOA定位流程示意图；
图 3为本申请实施例二提供的 TA+AOA定位流程示意图；
图 4为本申请实施例三提供的 TA+AOA定位流程示意图；
图 5为本申请实施例四提供的 TA+AOA定位流程示意图；
图 6为本申请实施例五提供的 TA+AOA定位流程示意图；
图 7为本申请实施例提供的基站设备的结构示意图；
图 8为本申请实施例提供的定位服务器的结构示意图。
图 9为本申请实施例提供的另外一种基站设备的结构示意图。
图 10为本申请实施例提供的另外一种定位服务器的结构示意图。 实施本发明的方式
载波聚合下， 终端工作的小区分为一个主小区 PCell ( Primary Cell ) 和若干个辅小区 SCell ( Second Cell ) , 主小区承担了大部分控制和信令 的工作，如发送对下行数据的上行反馈、 CQI ( Channel Quality Indicator, 信道质量指示）上报、 上行导频传输等， 辅小区主要是作为资源， 承担 数据传输的功能。
在载波聚合场景中， 由于不同载波可能存在不同传播环境（例如， 不同的频率， 或网络侧不共址导致传播环境不同）， 因此同一个终端在 不同的载波上可能出现不同的上行定时提前量。
在载波聚合时， 也存在聚合的载波不共址的场景， 不同的载波上的 上行定时提前量不同。 如果不同的载波的信噪比不同或者测量带宽不 同， 对定位的测量精度也会有影响。
基于网络侧的终端位置定位技术包括 CELL— ID 定位技术和 TA+AOA定位技术。 CELL— ID定位方法是基于小区覆盖的定位方法， 采用已知的服务小区地理信息估计目标 UE的位置。 该服务小区信息可 以通过呼叫、寻呼、 TA( Tracking Area,跟踪区）更新等方式获得。 TA+AOA 定位方法在 CELL— ID 定位方法的基础上考虑了定时提前量（即 TA, Timing Advance ) 以及来波方向 （即 AOA, Angle of Arrival ) 的因素， 从而达到更精确的定位目的。
基站通过智能天线得到 UE发射信号的 AOA, UE处于以基站为起 点的射线上， 射线从正北方向逆时针旋转的角度为 AOA。 TA+AOA定 位技术的原理为： TA 的获得可以通过终端上报 UE接收和发送的时间 差， 加上基站测量到的接收和发送的时间差来计算（此方法计算得到的 TA称之为 TA TYPE1 ), 也可以通过专用随机接入过程由基站测量得到 (此方法计算得到的 TA称之为 TA TYPE2 )。 TA乘以光速除以 2, 表示 了 UE同基站之间的距离， 如图 1所示， UE就处于以基站为圓心、 终端 和基站距离为半径的圓周上， 根据 AOA的角度信息就可以获得终端的 位置。
使用 TA+AOA 方法进行终端定位主要涉及以下流程： 定位服务器 获得终端的测量能力， 并决定所需的测量量， 请求基站启动相关测量； 基站向定位服务器上报相关测量结果和位置信息， 定位服务器进行位置 计算。
在 TA typel中， 需要终端提供 UE Rx-Tx time difference (即 UE接 收和发送的时间差）的测量结果。该测量的精度要求如 36.133协议所示： 表 1、 UE Rx-Tx time difference测量精度要求 Paramet Unit Conditions (条件 ) er Downlin (单 Accurac Bands Bands Bands Band 26 Bands Bands c参数） k 位） y (精 1, 4, 6, 2, 5, 7, 25 3, 8, 12, 9, 42,
Bandwid 度） [Ts] 10, 11, 41 13, 14, 43 th 18, 19, 17, 20,
(下行 21, 23, 22 带宽） 24, 33,
[MHz] 34, 35,
36， 37,
38, 39,
40
Io Io Io Io Io Io
UE < 3 MHz Ts ±20 -121dB -119dB -117.5dB -118.5dB -118dB -120dB
RX-丄 X in/15kH m/15kH m/ 15kHz m/ 15kHz m/15kH m/15kH
> 5 MHz ±10
time z ... z ... z ... z ... differenc -50dBm -50dBm -50dBm/ -50dBm/ -50dBm -50dBm e for 1 1 BWchannel BWchannel 1 1
3
Es/Iot > BWchan BWchan BWchan BWchan
-3dB nel nel nel nel
Note 1 : Io is assumed to have constant EPRE across the bandwidth. (假定在全带宽上 Io具 有连续的 EPRE )
Note 2: Ts is the basic timing unit defined in TS 36.211 ( Ts是 TS 36.211标准中定义的基 本时间单位） .
Note 3: The condition is -119dBm/ 15kHz ... -5 OdBm/B Wchannei when the carrier frequency of the assigned E-UTRA channel bandwidth is within 865-894 MHz (当分配给 E-UTRA信道带宽的载波频率在 865-894 MHz内时， Conditions (条件） 为 -119dBm/15kHz ... -50dBm/BWclmimei ) 表 1给出了 UE Rx-Tx time difference在信噪比（ £s/Iot ) >-3dB时的 测量精度要求。当测量带宽≤3MHz时，精度为 ±20Ts; 当测量带宽≥5MHz 时， 测量精度为 ±10Ts。 信噪比低于 -3db, 没有进行精度要求， 意味着在 这种情况下， 测量精度会比较差， 很可能达不到 ±20Ts。
TA+AOA定位方法只应用于主服务小区， 是单小区的定位方法， 定 位的效果取决于该小区的测量效果。实际上 TA和 AOA的测量准确性会 受到环境， 信号强度， 干扰等因素的影响， 在不同的频率上多径效果可 能是不同的。 在信号质量差， 信噪比低以及小带宽的情况下， 测量的精 度也不高。 在引入多载波系统后， 终端可以同时工作在多小区下， 只能 在 Pcell ( Primary cell, 主小区）上进行 TA+AOA的定位。 在 Pcell上的 信道质量下降的情况下， 该测量的精度会变差。
针对上述 TA+AOA 定位技术存在的问题， 本申请实施例给出了多 载波聚合场景下， 根据终端的各服务小区的带宽， 和 /或， 信号接收质量 来选择执行 TA+AOA 的服务小区， 从而对终端进行定位的方法， 来提 升测量精度和定位精度。
下面以在支持多载波技术的 LTE-A Rel- 10系统中使用 TA TYPE 1进 行定位为例， 结合附图对本申请实施例进行详细描述。
实施例一
本实施例中， 基站在接收到定位服务器对目标终端的定位请求后， 在该目标终端的服务小区中选择一个适合进行定位相关测量的小区， 然 后启动终端在该小区进行定位相关测量， 并且该基站也在相应小区对该 目标终端进行定位相关测量； 基站接收到该目标终端上报的测量结果 后， 将该基站和该目标终端的定位相关测量结果发送给定位服务器进行 终端定位。
如图 2所示， 该流程可包括：
步骤 201： UE通过非接入层（ Non-Access Stadium, NAS )消息向移 动性管理实体 ( Mobility Management Entity , ΜΜΕ )发起定位请求， 请 求获取自身的位置信息。 本步骤的一种可选实现方案是： 某个定位服务 的客户端（ Location Services Client, LCS客户端 )向 MME发起定位请 求， 请求获取某个 UE的位置信息。
步骤 202: MME向演进服务移动定位中心（ Evolved Serving Mobile Location Center, E-SMLC )发起定位请求。
步骤 203a~203b: E-SMLC查询并获取 UE的定位能力信息。
步骤 204a~204c: E-SMLC 获取演进节点 B, 也即基站 （evolved NodeB, eNB ) 的定位相关测量结果以及服务小区的信息。 该过程中， eNB在接收到 E-SMLC发送的 LPPa测量请求消息后（步 骤 204a ), 获得该目标 UE的信息， 判断其工作在多小区上， 获取目标 UE 所使用的聚合的服务小区， 从中选择一个适合进行定位相关测量的 小区， 并通过无线资源控制 （Radio Resource Control, RRC ) 测量控制 消息将测量配置信息发送给该 UE, 其中指示出 eNB所选择的小区， 以 启动该 UE 在该小区上测量 UE 的信号接收和发送的定时偏差 （UE Rx-Tx Time difference )和 AOA (步骤 205a ) , UE根据 eNB的指示进行 定位相关测量， 并通过 RRC 测量报告将测量结果上报给 eNB (步骤 205c )。 并且， eNB自身也在所选择出的小区对该 UE的 UE Rx-Tx Time difference和 AOA进行测量（步骤 205b )。
具体实施时， eNB 所选择的小区可以是目标 UE 的服务小区中的 Pcell, 也可以是 Scell。 优选的， eNB可选择目标 UE的服务小区中带宽 最宽的小区， 也可选择目标 UE的服务小区中信号传输质量最好的小区 (比如在 UE使用的聚合载波的带宽都比较宽，例如均为 20MHz的情况 下 ),还可选择目标 UE的带宽最宽的服务小区中信号传输质量最好的小 区。
其中， 信号传输质量可以是测量信号的接收质量。 信号传输质量可 使用参考信号接收质量（ Reference Signal Receiving Quality, RSRQ )或 信噪比来衡量。 eNB可根据 UE已经上报的各个服务小区的 RSRQ或信 噪比来选择要执行定位测量的小区。
eNB在接收到 UE的 RRC测量报告后 （步骤 205c ), 根据 UE在选 择的小区所测量到的 UE Rx-Tx Time difference以及 eNB在选择的小区 所测量到的 UE Rx-Tx Time difference , 计算得到 TA TYPE 1。
步骤 206: E-SMLC根据 eNB上报的测量结果以及其它各方面输入， 计算出 UE的位置信息。 其中， eNB 上报给 E-SMLC 的测量结果中包括计算得到的 TA TYPE1 , 以及 UE和 eNB在所选择出的小区上测量到的 AOA。 E-SMLC 根据 eNB上报的 TA TYPEl , 以及 UE和 eNB测量到的 AOA对该 UE 进行定位。
步骤 207: E-SMLC将定位结果（位置信息）发给 MME。
步骤 208: MME将定位结果（位置信息）发给 UE或者 LCS客户 端。
进一步的， 步骤 204a中， E-SMLC可在发送给 eNB的 LPPa测量请 求消息中携带指示信息，以指示 eNB在信号传输质量最好的小区对目标 UE进行定位相关测量。 相应的， eNB从目标 UE的服务小区中选择信 号传输质量最好的小区， 并在该小区上对目标 UE进行定位相关测量， 并启动目标 UE在该小区上进行定位相关测量。
通过实施例一的上述流程可以看出， 在对目标终端进行定位的过程 中， 由于基站在目标终端的各服务小区中选择带宽最宽， 和 /或， 信号接 收质量最好的小区， 启动目标终端在该小区执行 TA+AOA测量， 并且 该基站也在相应小区执行 TA+AOA 测量， 以使定位服务器根据该测量 结果进行终端定位， 从而提高了终端定位的精度。
实施例二
本实施例中， 基站在接收到定位服务器对目标终端的定位请求后， 在该目标终端的服务小区中选择多个适合进行定位相关测量的小区， 然 后启动终端在该多个小区进行定位相关测量， 并且该基站也在相应小区 对该目标终端进行定位相关测量； 基站在接收到该目标终端上"¾的测量 结果后， 进一步从中选择适合定位测量的小区的测量结果， 然后将该基 站和目标终端在选择出的小区上的测量结果发送给定位服务器进行终 端定位。 如图 3所示， 该流程可包括：
步骤 301 : UE通过 NAS层消息向 MME发起定位请求， 请求获取 自身的位置信息。 本步骤的一种可选实现方案是： 某个 LCS 客户端向 MME发起定位请求， 请求获取某个 UE的位置信息。
步骤 302: MME向 E-SMLC发起定位请求。
步骤 303a~303b: E-SMLC查询并获取 UE的定位能力信息。
步骤 304a~304c: E-SMLC获取 eNB的相关测量结果以及服务小区 的信息。
该过程中， eNB在接收到 E-SMLC发送的 LPPa测量请求消息后（步 骤 304a ), 获得该目标 UE的信息， 判断其工作在多小区上， 获取目标 UE 所使用的聚合的服务小区， 从中选择适合进行定位相关测量的多个 小区， 并通过 RRC测量控制消息将测量配置信息发送给该 UE, 其中指 示出 eNB所选择的小区，以启动该 UE在这些小区上测量 UE Rx-Tx Time difference和 AOA(步骤 305a ), UE根据 eNB的指示进行定位相关测量， 并通过 RRC测量报告将测量结果上报给 eNB (步骤 305c )。 并且， eNB 自身也在所选择出的小区对该 UE的 UE Rx-Tx Time difference和 AOA 进行测量（步骤 305b )。
具体实施时， eNB 所选择的小区可以是目标 UE 的服务小区中的 Pcell和 Scell, 或选择多个 Scell。 优选的， eNB可选择目标 UE的服务 小区中带宽最宽 （在这样的小区有多个的情况下）或较宽的多个小区， 也可选择目标 UE的服务小区中信号传输质量最好的小区 （在这样的小 区有多个的情况下 ),也可选择目标 UE的服务小区中信号传输质量高于 设定门限值的服务小区 （在这样的小区有多个的情况下）。
其中， 信号传输质量可以是测量信号的接收质量。 信号传输质量可 使用 RSRQ或信噪比来衡量。 eNB可根据 UE已经上报的各个服务小区 的 RSRQ 或信噪比来选择要执行定位测量的小区。 比如， eNB 可根据 UE上报的各小区的信噪比是否大于预设门限（如 -3db )的指示信息， 获 知 UE的各服务小区的信噪比情况， 以作为小区选择操作的依据。例如， 该指示信息可以是 1101 , 表示对应小区的信噪比是否大于设定门限值， 即小区 0、 1和 3的信噪比大于设定门限值， 小区 2的信噪比小于设定 门限值。
eNB在接收到 UE的 RRC测量报告后（步骤 305c ), 进一步从中选 择一个小区的测量结果， 根据 UE在选择的小区所测量到的 UE Rx-Tx Time difference 以及 eNB 在选择的小区所测量到的 UE Rx-Tx Time difference , 计算得到 TA TYPE 1。
具体实施时， eNB可从 UE上报的各小区的定位相关测量结果中选 择适合进行定位测量的一个小区进行上报。 具体的， eNB可选择带宽最 宽的小区， 也可选择信号传输质量最好的小区， 还可选择目标 UE的带 宽最宽的小区中信号传输质量最好的小区。
步骤 306: E-SMLC根据 eNB上报的测量结果以及其它各方面输入， 计算出 UE的位置信息。
其中， eNB 上报给 E-SMLC 的测量结果中包括计算得到的 TA TYPE1 , 以及 UE和 eNB在所选择出的小区测量到的 AOA。 E-SMLC 根据 eNB上报的 TA TYPEl , 以及 UE和 eNB测量到的 AOA对该 UE 进行定位。
步骤 307: E-SMLC将定位结果（位置信息）发给 MME。
步骤 308: MME将定位结果（位置信息）发给 UE或者 LCS客户 端。
进一步的， 步骤 305a中， eNB可在发送给 UE的 RRC测量控制消 息中携带指示信息（此处称为第一指示信息）， 以指示 UE上报其所测量 的小区的信号传输质量信息。 UE根据该指示信息对指定小区进行信号 传输质量的测量， 比如测量指定小区的 RSRQ或者对指定小区的信噪比 进行测量。 UE可将指定小区的信号传输质量信息通过 RRC测量 告发 送给 eNB,作为 eNB选择服务小区进行测量结果上报的依据。对于测量 得到的信号传输质量信息以及定位相关测量结果， UE 可以分开上报给 eNB, 也可以一起上报给 eNB, 如果分开上报， 则由基站自行根据两种 测量报告的内容进行处理。 进一步的， UE还可在 RRC测量报告中指明 所测的小区， 比如， 对应上报的测量结果携带相应的小区标识， 以标识 出是哪个小区的测量结果。
进一步的， 步骤 304a中， E-SMLC可在发送给 eNB的 LPPa测量请 求消息中携带指示信息 （此处称为第二指示信息）， 以指示基站将信号 传输质量最好的小区的定位相关测量结果发送给 E-SMLC。
通过实施例二的上述流程可以看出， 在对目标终端进行定位的过程 中， 由于基站启动目标终端在多个小区执行 TA+AOA 测量， 并进一步 在目标终端上报的测量结果中选择带宽最宽， 和 /或， 信号接收质量最好 的小区的测量结果， 并将选择出的测量结果以及该基站在相应小区上的 测量结果上报给定位服务器， 以使定位服务器根据该测量结果进行终端 定位， 从而提高了终端定位的精度。
实施例三
本实施例中， 基站在接收到定位服务器对目标终端的定位请求后， 在该目标终端的服务小区中选择多个适合进行定位相关测量的小区， 然 后启动终端在该多个小区进行定位相关测量， 并且该基站也在相应小区 对该目标终端进行定位相关测量； 基站在接收到该目标终端上"¾的测量 结果后， 将该基站和目标终端在该多个小区上的测量结果发送给定位服 务器， 由定位服务器进一步选择合适的小区的测量结果进行终端定位。 如图 4所示， 该流程可包括：
步骤 401~404c: 与图 3所示流程中的步骤 301~304c基本相同， 不 同之处在于：
eNB在接收到 UE的 RRC测量报告后（步骤 405c ), 将该测量报告 中所携带的 UE在各小区的定位相关测量结果， 以及 eNB自身在相应小 区的定位相关测量结果， 通过 LPPa测量响应消息发送给 E-SMLC。
进一步的， eNB可在发送给 UE的 RRC测量控制消息中携带指示信 息，以指示 UE上报其所测量的小区的信号传输质量信息。 UE根据 eNB 的指示对相应小区的信号传输质量进行测量， 并将这些小区的信号传输 质量信息发送给 eNB (比如可通过 RRC 测量报告或新增消息发送给 eNB )。 eNB将这些小区的信号传输质量信息携带于 LPPa测量响应消息 发送给 E-SMLC , 也可通过新增加的消息发送给 E-SMLC , 以作为 E-SMLC选择服务小区进行定位计算的依据。
进一步的， UE还可在 RRC测量报告中指明所测的小区， 比如， 对应上 的测量结果携带相应的小区标识， 以标识出是哪个小区的测量 结果。
步骤 406: E-SMLC根据 eNB上报的测量结果以及其它各方面输入， 计算出 UE的位置信息。
该步骤中， E-SMLC接收到 eNB上报的测量结果后， 从中选择一个 小区的测量结果， 根据 UE在选择的小区所测量到的 UE Rx-Tx Time difference以及 eNB在选择的小区所测量到的 UE Rx-Tx Time difference, 计算得到 TA TYPE1 , 根据该 TA TYPE1 , 以及 UE和 eNB在选择的小 区所测量到的 AOA对该 UE进行定位。
优选的， E-SMLC可选择这些小区中带宽最宽的小区； 或者， 根据 eNB上报的各小区的信号传输质量信息， 选择这些小区中信号传输质量 最好的小区； 或者， 根据 eNB上报的各小区的信号传输质量信息， 选择 这些小区中带宽最宽的小区中信号传输质量最好的小区。 E-SMLC根据 选择出的小区的定位相关测量结果进行定位计算。
步骤 407: E-SMLC将定位结果（位置信息）发给 MME。
步骤 408: MME将定位结果（位置信息）发给 UE或者 LCS客户 端。
通过实施例三的上述流程可以看出， 在对目标终端进行定位的过程 中， 由于基站启动目标终端在多个小区执行 TA+AOA 测量， 并将多个 小区的测量结果上报给定位服务器， 使定位服务器从中选择适合定位测 量的小区的测量结果， 并进行终端定位， 从而提高了终端定位的精度。
实施例四
本实施例中， 基站在接收到定位服务器对目标终端的定位请求后， 启动终端在其所有服务小区进行定位相关测量， 并且该基站也在相应小 区对该目标终端进行定位相关测量； 基站在接收到该目标终端上>¾的测 量结果后， 从中选择适合定位测量的小区的测量结果， 然后将该基站和 目标终端在选择出的小区上的测量结果发送给定位服务器进行终端定 位。
如图 5所示， 该流程可包括：
步骤 501~504c: 与图 3所示流程中的 301~304c基本相同， 不同之 处在于：
eNB在接收到 E-SMLC发送的 LPPa测量请求消息后（步骤 504a ), 通过 RRC测量控制消息将测量配置信息发送给该 UE, 其中向 UE指示 出在其所有服务小区进行定位相关测量， 或者将该 UE的所有服务小区 指示给该 UE, 以启动该 UE在其所有服务小区上测量 UE Rx-Tx Time difference和 AOA (步骤 505a ), 并且 eNB 自身也在该 UE的所有服务 小区对该 UE的 UE Rx-Tx Time difference和 AOA进行测量（步骤 505b )。 eNB在接收到 UE的 RRC测量报告后（步骤 505c ), 从中选择一个 小区的测量结果， 根据 UE在选择的小区所测量到的 UE Rx-Tx Time difference以及 eNB在选择的小区所测量到的 UE Rx-Tx Time difference, 计算得到 TA TYPE1。
具体实施时， eNB可从 UE的各服务小区的定位相关测量结果中选 择适合进行定位测量的一个小区进行上报。 具体的， eNB可选择带宽最 宽的小区， 也可选择信号传输质量最好的小区， 还可选择目标 UE的带 宽最宽的小区中信号传输质量最好的小区。
步骤 506: E-SMLC根据 eNB上报的测量结果以及其它各方面输入， 计算出 UE的位置信息。
其中， eNB 上报给 E-SMLC 的测量结果中包括计算得到的 TA TYPE1 , 以及 UE和 eNB在所选择出的小区上测量到的 AOA。 E-SMLC 根据 eNB上报的 TA TYPE1 , 以及 UE和 eNB测量到的 AOA对该 UE 进行定位。
步骤 507: E-SMLC将定位结果（位置信息）发给 MME。
步骤 508: MME将定位结果（位置信息）发给 UE或者 LCS客户 端。
进一步的， 步骤 505a中， eNB可在发送给 UE的 RRC测量控制消 息中携带指示信息（此处称为第一指示信息 ), 以指示 UE上报其所测量 的小区的信号传输质量信息。 UE根据该指示信息对各小区进行信号传 输质量的测量， 比如测量指定小区的 RSRQ或者对指定小区的信噪比进 行测量。 UE可将各小区的信号传输质量信息通过 RRC测量报告发送给 eNB, 作为 eNB选择服务小区进行测量结果上报的依据。 对于测量得到 的信号传输质量信息以及定位相关测量结果， UE可以分开上报给 eNB, 也可以一起上报给 eNB。 进一步的， UE还可在 RRC测量报告中指明所 测的小区。
进一步的， 步骤 504a中， E-SMLC可在发送给 eNB的 LPPa测量请 求消息中携带指示信息 （此处称为第二指示信息）， 以指示基站将信号 传输质量最好的小区的定位相关测量结果发送给 E-SMLC。
当然， 基站在接收到定位服务器对目标终端的定位请求后， 也可以 启动终端在其部分服务小区进行定位相关测量。 这种情况下， 其终端定 位流程基本与图 5所示流程相同， 在此不再赘述。
通过实施例四的上述流程可以看出， 在对目标终端进行定位的过程 中， 由于基站启动目标终端在其所有服务小区执行 TA+AOA 测量， 并 进一步在目标终端上报的测量结果中选择带宽最宽， 和 /或， 信号接收质 量最好的小区的测量结果， 并将选择出的测量结果以及该基站在相应小 区上的测量结果上报给定位服务器， 以使定位服务器根据该测量结果进 行终端定位， 从而提高了终端定位的精度。
实施例五
本实施例中， 基站在接收到定位服务器对目标终端的定位请求后， 启动终端在其所有服务小区进行定位相关测量， 并且该基站也在相应小 区对该目标终端进行定位相关测量； 基站在接收到该目标终端上>¾的测 量结果后， 将该基站和目标终端在所有服务小区上的测量结果发送给定 位服务器， 由定位服务器选择合适的小区的测量结果进行终端定位。
其流程可如图 6所示， 包括：
步骤 601 ~604c： 与图 5所示流程中的 501 ~504c基本相同， 不同之 处在于：
eNB在接收到 UE的 RRC测量报告后（步骤 605c ), 将该测量报告 中所携带的 UE在各小区的定位相关测量结果以及 eNB自身在相应小区 的定位相关测量结果， 通过 LPPa测量响应消息发送给 E-SMLC。
进一步的， eNB可在发送给 UE的 RRC测量控制消息中携带指示信 息，以指示 UE上报其所测量的小区的信号传输质量信息。 UE根据 eNB 的指示对相应小区的信号传输质量进行测量， 并将这些小区的信号传输 质量信息通过 RRC测量报告发送给 eNB。 eNB将这些小区的信号传输 质量信息携带于 LPPa测量响应消息发送给 E-SMLC。 进一步的， UE 还可在 RRC测量报告中指明所测的小区。
步骤 606: E-SMLC根据 eNB上报的测量结果以及其它各方面输入， 计算出 UE的位置信息。
该步骤中， E-SMLC接收到 eNB上报的测量结果后， 从中选择一个 小区的测量结果， 根据 UE在选择的小区所测量到的 UE Rx-Tx Time difference以及 eNB在选择的小区所测量到的 UE Rx-Tx Time difference, 计算得到 TA TYPE1 , 根据该 TA TYPE1 , 以及 UE和 eNB在选择的小 区所测量到的 AOA对该 UE进行定位。
优选的， E-SMLC可选择该 UE的服务小区中带宽最宽的小区； 或 者， 根据 eNB上报的各小区的信号传输质量信息， 选择该 UE的服务小 区中信号传输质量最好的小区； 或者，根据 eNB上报的各小区的信号传 输质量信息， 选择该 UE的服务小区中带宽最宽的小区中信号传输质量 最好的小区。 E-SMLC根据选择出的小区的定位相关测量结果进行定位 计算。
步骤 607: E-SMLC将定位结果（位置信息）发给 MME。
步骤 608: MME将定位结果（位置信息）发给 UE或者 LCS客户 端。
当然， 基站在接收到定位服务器对目标终端的定位请求后， 也可以 启动终端在其部分服务小区进行定位相关测量。 这种情况下， 其终端定 位流程基本与图 6所示流程相同， 在此不再赘述。
通过实施例五的上述流程可以看出， 在对目标终端进行定位的过程 中， 由于基站启动目标终端在所有服务小区执行 TA+AOA测量， 并将 所有服务小区的测量结果上报给定位服务器， 使定位服务器从中选择适 合定位测量的小区的测量结果， 并进行终端定位， 从而提高了终端定位 的精度。
需要说明的是， 以上各实施例虽然是以使用 TA TYPE1进行定位为 例描述的， 但是针对 TA TYPE2也可基于相同的原理实现终端定位， 并 与现有 TA Type2方法相比可提高定位精度。 在使用 TA TYPE2方法时， 可以选择上行带宽大， 和 /或， 上行信噪比高的小区来执行 TA TYPE2测 量， 以提升测量精度和定位精度。
基于相同的技术构思， 本发明实施例还提供了一种基站设备和一种 定位服务器。
参见图 7, 为本申请实施例提供的基站设备的结构示意图， 该基站 设备可包括： 测量小区确定模块 701、 测量启动模块 702和测量上报模 块 703 , 其中：
测量小区确定模块 701 , 用于在接收到定位服务器对目标终端进行 定位的请求后， 指定进行定位相关测量的服务小区；
测量启动模块 702, 用于在接收到定位服务器对目标终端进行定位 的请求后， 请求所述目标终端上报在指定服务小区的定位相关测量结 果， 以及在所述目标终端的相应服务小区对所述目标终端进行定位相关 测量；
测量上 模块 703 , 用于在接收所述目标终端上 "¾的定位相关测量 结果后， 将所述目标终端上 >¾的定位相关测量结果与所述基站测量到的 定位相关测量结果， 上报给所述定位服务器， 以使所述定位服务器根据 所述目标终端和所述基站的定位相关测量结果对所述目标终端进行定 位。
其中， 测量小区确定模块 701可指定所述目标终端的以下服务小区 之一， 作为进行定位相关测量的服务小区：
带宽最宽的服务小区；
信号传输质量最好的服务小区；
带宽最宽的小区中信号传输质量最好的服务小区。
进一步的， 定位服务器对目标终端进行定位的请求中携带有指示信 息， 用于指示基站在信号传输质量最好的服务小区对所述目标终端进行 定位相关测量。 相应的， 测量启动模块 702可根据所述指示信息， 请求 所述目标终端上报在信号传输质量最好的服务小区的定位相关测量结 果， 以及在所述目标终端的服务小区中信号传输质量最好的小区对所述 目标终端进行定位相关测量。
测量小区确定模块 701还可指定所述目标终端的以下小区作为进行 定位相关测量的服务小区： 带宽最宽的至少 2个服务小区， 或者， 信号 传输质量大于设定门限值的至少 2个服务小区。 相应的， 测量上报模块 703 可在接收所述目标终端上报的定位相关测量结果后， 根据所述至少 2个服务小区的信号传输质量，选择其中信号传输质量最好的服务小区， 将所述目标终端和所述基站在所选择出的信号传输质量最好的服务小 区的定位相关测量结果上报给所述定位服务器； 或者， 在接收所述目标 终端上报的定位相关测量结果后， 将所述目标终端和所述基站在所述至 少 2个服务小区的定位相关测量结果， 以及所述至少 2个服务小区的信 号传输质量信息上报给所述定位服务器。
测量小区确定模块 701还可指定所述目标终端的所有或部分服务小 区作为定位相关测量的小区。 相应的， 测量上 模块 703可在接收所述 目标终端上报的定位相关测量结果后， 根据所述目标终端的所述所有或 部分服务小区的信号传输质量， 选择其中信号传输质量最好的服务小 区， 将所述目标终端和所述基站在所选择出的信号传输质量最好的服务 小区的定位相关测量结果上报给所述定位服务器； 或者， 在接收所述目 标终端上"¾的定位相关测量结果后， 将所述目标终端和所述基站在所述 目标终端的所述所有或部分服务小区的定位相关测量结果， 以及所述目 标终端的各服务小区的信号传输质量信息上报给所述定位服务器。
进一步的， 所述定位服务器对目标终端进行定位的请求中携带有指 示信息， 用于指示基站上报信号传输质量最好的服务小区的定位相关测 量结果。 相应的， 测量上报模块 703可根据指示信息， 在接收所述目标 终端上报的定位相关测量结果后， 执行根据服务小区的信号传输质量选 择其中信号传输质量最好的服务小区的操作。
进一步的， 测量启动模块 702可在请求所述目标终端上报在指定服 务小区的定位相关测量结果的消息中携带有指示信息， 用于指示终端上 报服务小区的信号传输质量信息。 相应的， 测量上报模块 703在执行根 据服务小区的信号传输质量选择其中信号传输质量最好的服务小区的 操作时， 所依据的信号传输质量信息为所述目标终端根据所述指示信息 上报的信号传输质量信息。
进一步的， 测量启动模块 702可在请求所述目标终端上报在指定服 务小区的定位相关测量结果的消息中携带指示信息， 用于指示终端上报 服务小区的信号传输质量信息。 相应的， 测量上报模块 703可在接收到 所述目标终端根据所述指示信息上报的服务小区信号传输质量信息后， 将所述服务小区信号传输质量信息上报给所述定位服务器。
具体的， 所述信号传输质量信息包括： RSRQ或 /和载波信噪比。 参见图 8, 为本申请实施例提供的定位服务器的结构示意图， 该定 位服务器可包括： 定位请求模块 801和定位处理模块 802, 其中： 定位请求模块 801 , 用于请求基站对目标终端进行定位， 以触发所 述基站请求所述目标终端上报在指定服务小区的定位相关测量结果， 以 及触发所述基站在相应服务小区对所述目标终端进行定位相关测量； 定位处理模块 802, 用于接收所述基站返回的响应， 其中携带有所 述目标终端上报的定位相关测量结果与所述基站测量到的定位相关测 量结果， 并根据接收到的定位相关测量结果对所述目标终端进行定位。
具体的， 所述指定服务小区为所述目标终端的以下服务小区之一： 带宽最宽的服务小区；
信号传输质量最好的服务小区；
带宽最宽的小区中信号传输质量最好的服务小区。
在上述情况下， 进一步的， 定位请求模块 801在对目标终端进行定 位的请求中携带指示信息， 用于指示基站在信号传输质量最好的服务小 区对所述目标终端进行定位相关测量。
具体的， 所述指定服务小区为所述目标终端的以下服务小区： 带宽 最宽的至少 2个服务小区， 或者， 信号传输质量大于设定门限值的至少 2 个服务小区； 并且， 所述响应中携带的定位相关测量结果， 为所述目 标终端和所述基站在信号传输质量最好的服务小区的定位相关测量结 果， 或者为所述目标终端和所述基站在所述至少 2个服务小区的定位相 关测量结果。 相应的， 定位处理模块 802具体用于： 若所述响应中携带 的定位相关测量结果为所述目标终端和所述基站在所述至少 2个服务小 区的定位相关测量结果，则根据所述至少 2个服务小区的信号传输质量， 选择其中信号传输质量最好的服务小区， 根据所述目标终端和所述基站 在选择出的信号传输质量最好的小区的定位相关测量结果对所述目标 终端进行定位。 具体的， 所述指定小区为所述目标终端的所有或部分服务小区； 并 且， 所述响应中携带的定位相关测量结果， 为所述目标终端和所述基站 在信号传输质量最好的服务小区的定位相关测量结果， 或者为所述目标 终端和所述基站在所述目标终端的所述所有或部分服务小区的定位相 关测量结果。 相应的， 定位处理模块 802具体用于： 若所述响应中携带 的定位相关测量结果为所述目标终端和所述基站在所述目标终端的所 述所有或部分 务小区的定位相关测量结果， 则 ^据所述目标终端的所 述所有或部分服务小区的信号传输质量选择其中信号传输质量最好的 服务小区， 根据所述目标终端和所述基站在选择出的信号传输质量最好 的小区的定位相关测量结果对所述目标终端进行定位。
通过以上的实施方式的描述， 本领域的技术人员可以清楚地了解到 本申请可借助软件加必需的通用硬件平台的方式来实现， 当然也可以通 过硬件， 但很多情况下前者是更佳的实施方式。 基于这样的理解， 本申 请的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产 品的形式体现出来， 该计算机软件产品存储在一个存储介质中， 包括若 干指令用以使得一台终端设备（可以是手机， 个人计算机， 服务器， 或 者网络设备等）执行本申请各个实施例所述的方法。
具体来说， 本申请实施例还提供了一种机器可读的存储介质， 存储 用于使一机器执行如本文所述的应用于多载波系统的终端定位方法的 指令。 具体地， 可以提供配有存储介质的系统或者装置， 在该存储介 质上存储着实现上述实施例中任一实施例的功能的软件程序代码， 且 使该系统或者装置的计算机（或 CPU或 MPU )读出并执行存储在存储 介质中的程序代码。
在这种情况下， 从存储介质读取的程序代码本身可实现上述实施例 中任何一项实施例的功能， 因此程序代码和存储程序代码的存储介质 构成了本申请的一部分。
用于提供程序代码的存储介质实施例包括软盘、 硬盘、 磁光盘、 光 盘 （ 如 CD-ROM 、 CD-R、 CD-RW、 DVD-ROM 、 DVD-RAM 、 DVD-RW、 DVD+RW ) 、 磁带、 非易失性存储卡和 ROM。 可选择地， 可以由通信网络从服务器计算机上下载程序代码。
此外， 应该清楚的是， 不仅可以通过执行计算机所读出的程序代 码， 而且可以通过基于程序代码的指令使计算机上操作的操作系统等 来完成部分或者全部的实际操作， 从而实现上述实施例中任意一项实 施例的功能。
此外， 可以理解的是， 将由存储介质读出的程序代码写到插入计算 机内的扩展板中所设置的存储器中或者写到与计算机相连接的扩展单 元中设置的存储器中， 随后基于程序代码的指令使安装在扩展板或者 扩展单元上的 CPU 等来执行部分和全部实际操作， 从而实现上述实施 例中任一实施例的功能。
例如，图 9为本申请实施例提供的另外一种基站设备的结构示意图。 如图 9所示， 该基站设备 90可包括存储器 901 , 以及与所述存储器 901 通信的处理器 902, 该存储器 901中存储可由所述处理器 902执行的测 量小区确定指令 9011、测量启动指令 9012和测量上报指令 9013。其中： 测量小区确定指令 9011 ,用于指示在接收到定位服务器对目标终端 进行定位的请求后， 指定进行定位相关测量的服务小区；
测量启动指令 9012,用于指示在接收到定位服务器对目标终端进行 定位的请求后， 请求所述目标终端上报在指定服务小区的定位相关测量 结果， 以及在所述目标终端的相应服务小区对所述目标终端进行定位相 关测量；
测量上报指令 9013 ,用于指示在接收所述目标终端上报的定位相关 测量结果后， 将所述目标终端上 "¾的定位相关测量结果与该基站测量到 的定位相关测量结果， 上报给所述定位服务器， 以使所述定位服务器根 据所述目标终端和所述基站的定位相关测量结果对所述目标终端进行 定位。
其中， 测量小区确定指令 9011 可指定所述目标终端的以下服务小 区之一， 作为进行定位相关测量的服务小区：
带宽最宽的服务小区；
信号传输质量最好的服务小区；
带宽最宽的小区中信号传输质量最好的服务小区。
进一步的， 定位服务器对目标终端进行定位的请求中携带有指示信 息， 用于指示基站在信号传输质量最好的服务小区对所述目标终端进行 定位相关测量。 相应的， 测量启动指令 9012 可 ^据所述指示信息， 指 示请求所述目标终端上报在信号传输质量最好的服务小区的定位相关 测量结果， 以及在所述目标终端的服务小区中信号传输质量最好的小区 对所述目标终端进行定位相关测量。
测量小区确定指令 9011 还可指定所述目标终端的以下小区作为进 行定位相关测量的服务小区： 带宽最宽的至少 2个服务小区， 或者， 信 号传输质量大于设定门限值的至少 2个服务小区。 相应的， 测量上报指 令 9013 可在接收所述目标终端上报的定位相关测量结果后， 指示根据 所述至少 2个服务小区的信号传输质量， 选择其中信号传输质量最好的 服务小区， 将所述目标终端和所述基站在所选择出的信号传输质量最好 的服务小区的定位相关测量结果上报给所述定位服务器； 或者， 在接收 所述目标终端上"¾的定位相关测量结果后， 指示将所述目标终端和所述 基站在所述至少 2个服务小区的定位相关测量结果， 以及所述至少 2个 服务小区的信号传输质量信息上报给所述定位服务器。 测量小区确定指令 9011 还可指定所述目标终端的所有或部分服务 小区作为定位相关测量的小区。 相应的， 测量上报指令 9013 可在接收 所述目标终端上"¾的定位相关测量结果后， 指示 ^据所述目标终端的所 述所有或部分服务小区的信号传输质量， 选择其中信号传输质量最好的 服务小区， 将所述目标终端和所述基站在所选择出的信号传输质量最好 的服务小区的定位相关测量结果上报给所述定位服务器； 或者， 在接收 所述目标终端上"¾的定位相关测量结果后， 指示将所述目标终端和所述 基站在所述目标终端的所述所有或部分服务小区的定位相关测量结果， 以及所述目标终端的各服务小区的信号传输质量信息上报给所述定位 服务器。
进一步的， 所述定位服务器对目标终端进行定位的请求中携带有指 示信息， 用于指示基站上报信号传输质量最好的服务小区的定位相关测 量结果。 相应的， 测量上报指令 9013 可根据指示信息， 在接收所述目 标终端上报的定位相关测量结果后， 指示执行根据服务小区的信号传输 质量选择其中信号传输质量最好的服务小区的操作。
进一步的， 测量启动指令 9012 可指示在请求所述目标终端上报在 指定服务小区的定位相关测量结果的消息中携带有指示信息， 用于指示 终端上报服务小区的信号传输质量信息。 相应的， 在根据测量上报指令 9013 执行根据服务小区的信号传输质量选择其中信号传输质量最好的 服务小区的操作时， 所依据的信号传输质量信息为所述目标终端根据所 述指示信息上报的信号传输质量信息。
进一步的， 测量启动指令 9012 可指示在请求所述目标终端上报在 指定服务小区的定位相关测量结果的消息中携带指示信息， 用于指示终 端上报服务小区的信号传输质量信息。 相应的， 在接收到所述目标终端 根据所述指示信息上报的服务小区信号传输质量信息后， 测量上报指令 9013可指示将所述服务小区信号传输质量信息上报给所述定位服务器。 具体的， 所述信号传输质量信息包括： RSRQ或 /和载波信噪比。 参见图 10,为本申请实施例提供的另外一种定位服务器的结构示意 图， 该定位服务器 100可包括存储器 1001 , 以及与该存储器 1001进行 通信的处理器 1002。 该存储器 1001 中存储可由所述处理器执行的定位 请求指令 10011和定位处理指令 10012, 其中：
定位请求指令 10011 , 用于指示请求基站对目标终端进行定位， 以 触发所述基站请求所述目标终端上报在指定服务小区的定位相关测量 结果， 以及触发所述基站在相应服务小区对所述目标终端进行定位相关 测量；
定位处理指令 10012, 用于指示接收所述基站返回的响应， 其中携 带有所述目标终端上报的定位相关测量结果与所述基站测量到的定位 相关测量结果， 并指示根据接收到的定位相关测量结果对所述目标终端 进行定位。
具体的， 所述指定服务小区为所述目标终端的以下服务小区之一： 带宽最宽的服务小区；
信号传输质量最好的服务小区；
带宽最宽的小区中信号传输质量最好的服务小区。
在上述情况下， 进一步的， 可根据定位请求指令 10011 , 在对目标 终端进行定位的请求中携带指示信息， 用于指示基站在信号传输质量最 好的服务小区对所述目标终端进行定位相关测量。
具体的， 所述指定服务小区为所述目标终端的以下服务小区： 带宽 最宽的至少 2个服务小区， 或者， 信号传输质量大于设定门限值的至少 2 个服务小区； 并且， 所述响应中携带的定位相关测量结果， 为所述目 标终端和所述基站在信号传输质量最好的服务小区的定位相关测量结 果， 或者为所述目标终端和所述基站在所述至少 2个服务小区的定位相 关测量结果。 相应的， 定位处理指令 10012具体用于指示： 若所述响应 中携带的定位相关测量结果为所述目标终端和所述基站在所述至少 2个 服务小区的定位相关测量结果， 则根据所述至少 2个服务小区的信号传 输质量， 选择其中信号传输质量最好的服务小区， 根据所述目标终端和 所述基站在选择出的信号传输质量最好的小区的定位相关测量结果对 所述目标终端进行定位。
具体的， 所述指定小区为所述目标终端的所有或部分服务小区； 并 且， 所述响应中携带的定位相关测量结果， 为所述目标终端和所述基站 在信号传输质量最好的服务小区的定位相关测量结果， 或者为所述目标 终端和所述基站在所述目标终端的所述所有或部分服务小区的定位相 关测量结果。 相应的， 定位处理指令 10012具体用于指示： 若所述响应 中携带的定位相关测量结果为所述目标终端和所述基站在所述目标终 端的所述所有或部分 务小区的定位相关测量结果， 则 ^据所述目标终 端的所述所有或部分服务小区的信号传输质量选择其中信号传输质量 最好的服务小区， 根据所述目标终端和所述基站在选择出的信号传输质 量最好的小区的定位相关测量结果对所述目标终端进行定位。
以上所述仅是本发明的优选实施方式， 应当指出， 对于本技术领域 的普通技术人员来说， 在不脱离本发明原理的前提下， 还可以做出若干 改进和润饰， 这些改进和润饰也应视本发明的保护范围。

Claims

权利要求书
1.一种应用于多载波系统的终端定位方法， 其特征在于， 该方法包 括：
基站接收到定位服务器对目标终端进行定位的请求后， 请求所述目 标终端上报在指定服务小区的定位相关测量结果， 所述基站在所述目标 终端的相应服务小区对所述目标终端进行定位相关测量；
所述基站接收所述目标终端上报的定位相关测量结果后， 将所述目 标终端上报的定位相关测量结果与所述基站测量到的定位相关测量结 果， 上报给所述定位服务器， 以使所述定位服务器根据所述目标终端和 所述基站的定位相关测量结果对所述目标终端进行定位。
2.如权利要求 1所述的方法， 其特征在于， 所述指定服务小区为所 述目标终端的以下服务小区之一：
带宽最宽的服务小区；
信号传输质量最好的服务小区；
带宽最宽的小区中信号传输质量最好的服务小区。
3.如权利要求 2所述的方法， 其特征在于， 所述定位服务器对目标 终端进行定位的请求中携带有指示信息， 用于指示基站在信号传输质量 最好的服务小区对所述目标终端进行定位相关测量；
所述基站根据所述指示信息， 请求所述目标终端上报在信号传输质 量最好的服务小区的定位相关测量结果， 以及在所述目标终端的服务小 区中信号传输质量最好的小区对所述目标终端进行定位相关测量。
4.如权利要求 1所述的方法， 其特征在于， 所述指定服务小区为所 述目标终端的以下服务小区： 带宽最宽的至少 2个服务小区， 或者， 信 号传输质量大于设定门限值的至少 2个服务小区； 所述基站接收所述目标终端上"¾的定位相关测量结果后， 将所述目 标终端上报的定位相关测量结果与所述基站测量到的定位相关测量结 果， 上报给所述定位服务器， 包括：
所述基站接收所述目标终端上报的定位相关测量结果后， 根据所述 至少 2个服务小区的信号传输质量， 选择其中信号传输质量最好的服务 小区， 将所述目标终端和所述基站在所选择出的信号传输质量最好的服 务小区的定位相关测量结果上报给所述定位服务器； 或者
所述基站接收所述目标终端上报的定位相关测量结果后， 将所述目 标终端和所述基站在所述至少 2个服务小区的定位相关测量结果， 以及 所述至少 2个服务小区的信号传输质量信息上报给所述定位服务器。
5.如权利要求 1所述的方法， 其特征在于， 所述指定小区为所述目 标终端的所有或部分服务小区；
所述基站接收所述目标终端上"¾的定位相关测量结果后， 将所述目 标终端上报的定位相关测量结果与所述基站测量到的定位相关测量结 果， 上报给所述定位服务器， 包括：
所述基站接收所述目标终端上报的定位相关测量结果后， 根据所述 目标终端的所述所有或部分服务小区的信号传输质量， 选择其中信号传 输质量最好的服务小区， 将所述目标终端和所述基站在所选择出的信号 传输质量最好的服务小区的定位相关测量结果上报给所述定位服务器； 或者
所述基站接收所述目标终端上"¾的定位相关测量结果后， 将所述目 标终端和所述基站在所述目标终端的所述所有或部分服务小区的定位 相关测量结果， 以及所述目标终端的各服务小区的信号传输质量信息上 报给所述定位服务器。
6.如权利要求 4或 5所述的方法， 其特征在于， 所述定位服务器对 目标终端进行定位的请求中携带有指示信息， 用于指示基站上报信号传 输质量最好的服务小区的定位相关测量结果；
所述基站根据指示信息， 在接收所述目标终端上报的定位相关测量 结果后， 根据所述目标终端在所述指定服务小区的信号传输质量， 选择 其中信号传输质量最好的服务小区， 将所述目标终端和所述基站在所选 择出的信号传输质量最好的服务小区的定位相关测量结果上报给所述 定位服务器。
7.如权利要求 4或 5所述的方法， 其特征在于， 所述基站在请求所 述目标终端上报在指定服务小区的定位相关测量结果的消息中携带有 指示信息， 用于指示终端上 服务小区的信号传输质量信息；
所述基站在执行根据服务小区的信号传输质量选择其中信号传输质 量最好的服务小区的操作时， 所依据的信号传输质量信息为所述目标终 端根据所述指示信息上报的信号传输质量信息。
8.如权利要求 4或 5所述的方法， 其特征在于， 所述基站在请求所 述目标终端上报在指定服务小区的定位相关测量结果的消息中携带有 指示信息， 用于指示终端上 服务小区的信号传输质量信息；
所述基站上报给所述定位服务器的服务小区信号传输质量信息， 是 所述目标终端根据所述指示信息上报给所述基站， 再由所述基站上报给 所述定位服务器的。
9.如权利要求 2、 4或 5所述的方法， 其特征在于， 所述信号传输质 量信息包括： 参考信号接收质量 RSRQ或 /和载波信噪比。
10.—种应用于多载波系统的终端定位方法， 其特征在于， 该方法包 括：
定位服务器请求基站对目标终端进行定位， 以触发所述基站请求所 述目标终端上报在指定服务小区的定位相关测量结果， 以及触发所述基 站在相应服务小区对所述目标终端进行定位相关测量； 所述定位服务器接收所述基站返回的响应， 其中携带有所述目标终 端上 >¾的定位相关测量结果与所述基站测量到的定位相关测量结果； 所述定位服务器根据接收到的定位相关测量结果对所述目标终端进 行定位。
11.如权利要求 10所述的方法， 其特征在于， 所述指定服务小区为 所述目标终端的以下服务小区之一：
带宽最宽的服务小区；
信号传输质量最好的服务小区；
带宽最宽的小区中信号传输质量最好的服务小区。
12.如权利要求 11 所述的方法， 其特征在于， 所述定位服务器对目 标终端进行定位的请求中携带有指示信息， 用于指示基站在信号传输质 量最好的服务小区对所述目标终端进行定位相关测量。
13.如权利要求 10所述的方法， 其特征在于， 所述指定服务小区为 所述目标终端的以下服务小区： 带宽最宽的至少 2个服务小区， 或者， 信号传输质量大于设定门限值的至少 2个服务小区；
所述响应中携带的定位相关测量结果， 为所述目标终端和所述基站 在信号传输质量最好的服务小区的定位相关测量结果， 或者为所述目标 终端和所述基站在所述至少 2个服务小区的定位相关测量结果；
若所述响应中携带的定位相关测量结果为所述目标终端和所述基站 在所述至少 2个服务小区的定位相关测量结果， 则所述定位服务器根据 接收到的定位相关测量结果对所述目标终端进行定位， 具体包括：
所述定位服务器根据所述至少 2个服务小区的信号传输质量， 选择 其中信号传输质量最好的服务小区， 根据所述目标终端和所述基站在选 择出的信号传输质量最好的小区的定位相关测量结果对所述目标终端 进行定位。
14.如权利要求 10所述的方法， 其特征在于， 所述指定小区为所述 目标终端的所有或部分服务小区；
所述响应中携带的定位相关测量结果， 为所述目标终端和所述基站 在信号传输质量最好的服务小区的定位相关测量结果， 或者为所述目标 终端和所述基站在所述目标终端的所述所有或部分服务小区上的定位 相关测量结果；
若所述响应中携带的定位相关测量结果为所述目标终端和所述基站 在所述目标终端的所述所有或部分服务小区上的定位相关测量结果， 则 所述定位服务器根据接收到的定位相关测量结果对所述目标终端进行 定位， 具体包括：
所述定位服务器根据所述目标终端的所述所有或部分服务小区的信 号传输质量选择其中信号传输质量最好的服务小区， 根据所述目标终端 和所述基站在选择出的信号传输质量最好的小区的定位相关测量结果 对所述目标终端进行定位。
15.—种基站设备， 其特征在于， 包括存储器， 以及与所述存储器通 定指令， 测量启动指令和测量上报指令，
所述测量小区确定指令， 用于指示在接收到定位服务器对目标终端 进行定位的请求后， 指定进行定位相关测量的服务小区；
所述测量启动指令， 用于指示在接收到定位服务器对目标终端进行 定位的请求后， 请求所述目标终端上报在指定服务小区的定位相关测量 结果， 以及在所述目标终端的相应的指定服务小区对所述目标终端进行 定位相关测量；
所述测量上报指令， 用于指示在接收所述目标终端上报的定位相关 测量结果后， 将所述目标终端上 >¾的定位相关测量结果与所述基站测量 到的定位相关测量结果， 上报给所述定位服务器， 以使所述定位服务器 根据所述目标终端和所述基站的定位相关测量结果对所述目标终端进 行定位。
16.如权利要求 15所述的基站设备， 其特征在于， 所述测量小区确 定指令具体用于指示， 指定所述目标终端的以下服务小区之一， 作为进 行定位相关测量的服务小区：
带宽最宽的服务小区；
信号传输质量最好的服务小区；
带宽最宽的小区中信号传输质量最好的服务小区。
17.如权利要求 16所述的基站设备， 其特征在于， 所述定位服务器 对目标终端进行定位的请求中携带有指示信息， 用于指示基站在信号传 输质量最好的服务小区对所述目标终端进行定位相关测量；
所述测量启动指令具体用于指示， 根据所述指示信息， 请求所述目 标终端上报在信号传输质量最好的服务小区的定位相关测量结果， 以及 在所述目标终端的服务小区中信号传输质量最好的小区对所述目标终 端进行定位相关测量。
18.如权利要求 15所述的基站设备， 其特征在于， 所述测量小区确 定指令具体用于指示， 指定所述目标终端的以下小区作为进行定位相关 测量的服务小区： 带宽最宽的至少 2个服务小区， 或者， 信号传输质量 大于设定门限值的至少 2个服务小区；
所述测量上报指令具体用于指示， 在接收所述目标终端上报的定位 相关测量结果后， 根据所述至少 2个服务小区的信号传输质量， 选择其 中信号传输质量最好的服务小区， 将所述目标终端和所述基站在所选择 出的信号传输质量最好的服务小区的定位相关测量结果上报给所述定 位服务器； 或者， 在接收所述目标终端上报的定位相关测量结果后， 将 所述目标终端和所述基站在所述至少 2 个服务小区的定位相关测量结 果， 以及所述至少 2个服务小区的信号传输质量信息上报给所述定位服 务器。
19.如权利要求 15所述的基站设备， 其特征在于， 根据所述测量小 区确定指令所指定的服务小区为所述目标终端的所有或部分服务小区； 所述测量上报指令具体用于指示， 在接收所述目标终端上报的定位 相关测量结果后， ^据所述目标终端的所述所有或部分 务小区的信号 传输质量， 选择其中信号传输质量最好的服务小区， 将所述目标终端和 所述基站在所选择出的信号传输质量最好的服务小区的定位相关测量 结果上报给所述定位服务器； 或者， 在接收所述目标终端上报的定位相 关测量结果后， 将所述目标终端和所述基站在所述目标终端的所述所有 或部分服务小区上的定位相关测量结果， 以及所述目标终端的各服务小 区的信号传输质量信息上报给所述定位服务器。
20.如权利要求 18或 19所述的基站设备， 其特征在于， 所述定位服 务器对目标终端进行定位的请求中携带有指示信息， 用于指示基站上才艮 信号传输质量最好的服务小区的定位相关测量结果；
测量上报指令具体用于指示， 根据指示信息， 在接收所述目标终端 上报的定位相关测量结果后， 根据所述指定服务小区的信号传输质量， 选择其中信号传输质量最好的服务小区， 将所述目标终端和所述基站在 所选择出的信号传输质量最好的服务小区的定位相关测量结果上报给 所述定位服务器。
21.如权利要求 18或 19所述的基站设备， 其特征在于， 所述测量启 动指令具体用于指示， 在请求所述目标终端上报在指定服务小区的定位 相关测量结果的消息中携带有指示信息， 用于指示所述目标终端上 4艮服 务小区的信号传输质量信息；
所述测量上报指令具体用于指示， 在根据服务小区的信号传输质量 选择其中信号传输质量最好的服务小区时， 所依据的信号传输质量信息 为所述目标终端根据所述指示信息上 >¾的信号传输质量信息。
22.如权利要求 18或 19所述的基站设备， 其特征在于， 所述测量启 动指令具体用于指示， 在请求所述目标终端上报在指定服务小区的定位 相关测量结果的消息中携带有指示信息， 用于指示终端上^艮服务 d、区的 信号传输质量信息；
所述测量上报指令具体用于指示， 在接收到所述目标终端根据所述 指示信息上报的指定服务小区信号传输质量信息后， 将所述指定服务小 区信号传输质量信息上报给所述定位服务器。
23.如权利要求 16、 18或 19所述的基站设备， 其特征在于， 所述信 号传输质量信息包括： 参考信号接收质量 RSRQ或 /和载波信噪比。
24.—种定位服务器， 其特征在于， 包括存储器， 以及与所述存储器 通信的处理器， 所述存储器存储可由所述处理器执行的定位请求指令， 以及定位处理指令， 其中
所述定位请求指令， 用于指示请求基站对目标终端进行定位， 以触 发所述基站请求所述目标终端上报在指定服务小区的定位相关测量结 果， 以及触发所述基站在相应的指定服务小区对所述目标终端进行定位 相关测量；
所述定位处理指令， 用于指示接收所述基站返回的响应， 其中携带 有所述目标终端上报的定位相关测量结果与所述基站测量到的定位相 关测量结果， 并根据接收到的定位相关测量结果对所述目标终端进行定 位。
25.如权利要求 24所述的定位服务器， 其特征在于， 所述指定服务 小区为所述目标终端的以下服务小区之一：
带宽最宽的服务小区；
信号传输质量最好的服务小区；
带宽最宽的小区中信号传输质量最好的服务小区。
26.如权利要求 25所述的定位服务器， 其特征在于， 所述定位请求 指令具体用于指示， 在对目标终端进行定位的请求中携带指示信息， 用 于指示基站在信号传输质量最好的服务小区对所述目标终端进行定位 相关测量。
27.如权利要求 24所述的定位服务器， 其特征在于， 所述指定服务 小区为所述目标终端的以下服务小区： 带宽最宽的至少 2个服务小区， 或者， 信号传输质量大于设定门限值的至少 2个服务小区；
所述响应中携带的定位相关测量结果， 为所述目标终端和所述基站 在信号传输质量最好的服务小区的定位相关测量结果， 或者为所述目标 终端和所述基站在所述至少 2个服务小区上的定位相关测量结果； 所述定位处理指令具体用于指示， 若所述响应中携带的定位相关测 量结果为所述目标终端和所述基站在所述至少 2个服务小区的定位相关 测量结果， 则根据所述至少 2个服务小区的信号传输质量， 选择其中信 号传输质量最好的服务小区， 根据所述目标终端和所述基站在选择出的 信号传输质量最好的小区的定位相关测量结果对所述目标终端进行定 位。
28.如权利要求 24所述的定位服务器， 其特征在于， 所述指定小区 为所述目标终端的所有或部分服务小区；
所述响应中携带的定位相关测量结果， 为所述目标终端和所述基站 在信号传输质量最好的服务小区的定位相关测量结果， 或者为所述目标 终端和所述基站在所述目标终端的所述所有或部分服务小区上的定位 相关测量结果；
所述定位处理指令具体用于指示， 若所述响应中携带的定位相关测 量结果为所述目标终端和所述基站在所述目标终端的所述所有或部分 服务小区的定位相关测量结果， 则根据所述目标终端的所述所有或部分 服务小区的信号传输质量选择其中信号传输质量最好的服务小区， 根据 所述目标终端和所述基站在选择出的信号传输质量最好的小区的定位 相关测量结果对所述目标终端进行定位。
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