WO2020104071A1 - Détermination de position - Google Patents

Détermination de position

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Publication number
WO2020104071A1
WO2020104071A1 PCT/EP2019/053223 EP2019053223W WO2020104071A1 WO 2020104071 A1 WO2020104071 A1 WO 2020104071A1 EP 2019053223 W EP2019053223 W EP 2019053223W WO 2020104071 A1 WO2020104071 A1 WO 2020104071A1
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WO
WIPO (PCT)
Prior art keywords
data
sets
measurement data
position determination
identity data
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2019/053223
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English (en)
Inventor
Diomidis Michalopoulos
Eva PEREZ
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Technologies Oy
Original Assignee
Nokia Technologies Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nokia Technologies Oy filed Critical Nokia Technologies Oy
Publication of WO2020104071A1 publication Critical patent/WO2020104071A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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

  • Example embodiments relate to position determination, for example apparatuses and methods for determining the geographic position of user equipment.
  • Determining the position of a target device is useful for various applications. For example, it may enable services such as locating the origin of an emergency telephone call, locating lost or stolen devices, targeted advertising, location-based billing and so on.
  • GNSS Global Navigation Satellite System
  • radio technologies e.g. Long Term Evolution (LTE) networks, Wi-Fi networks, terrestrial beacons and/or the user of inertial measurement units (IMUs) may be used for indoor positioning.
  • LTE Long Term Evolution
  • IMUs inertial measurement units
  • an apparatus comprising: means for receiving, from a target device, a set of measurement data associated with each of a plurality of respective spatially-separate transmitters and/or receivers, the sets of measurement data being collectively usable for position determination; means for receiving a set of identity data for each transmitter and/or receiver; means for filtering the sets of measurement data to exclude one or more of the sets based on filter data indicating one or more impermissible combinations of different identity data sets; and means for performing position determination of the target device based on the filtered sets of measurement data.
  • the filter data may be pre-determined based on the spatial relationship between the plurality of transmitters associated with the respective identity data sets.
  • Each set of measurement data and identity data may be derived from each of a plurality of positioning reference signals received by the target device from the transmitters and/or receivers and wherein the identity data represents at least a cell identifier associated with the respective transmitter and/or receiver.
  • Each identity data set may further comprise one or more beam identifiers, each identifying a beam of a plurality of beams formed by the respective transmitter, from which the positioning reference signal was received, and wherein the means for filtering is configured to filter based on filter data indicating one or more impermissible combinations of different cell and beam identifiers.
  • the filter data may be further pre-determined based on the spatial relationship between beams associated with the respective identity data sets.
  • Each set of measurement data may comprise reference signal time difference (RSTD) data measured by the target device based the respective positioning reference signal.
  • RSTD reference signal time difference
  • the means for performing position determination may be configured to use an observed time difference of arrival (OTDOA) method using two or more sets of RSTD data.
  • OTDA observed time difference of arrival
  • the measurement data may be received using an established radio network positioning protocol, e.g. LPP.
  • the apparatus may comprise a location measurement function of a radio access network.
  • an apparatus comprising: means for transmitting to an apparatus according to any preceding definition a set of measurement data and set of identity data derived from each of a plurality of positioning reference signals received from respective spatially-separate transmitters, the set of measurement data being usable for position determination and the set of identity data representing a cell identifier associated with the respective transmitter and a beam identifier identifying a beam of a plurality of beams formed by the respective transmitter, from which the positioning reference signal was received.
  • a method comprising: receiving, from a target device, a set of measurement data associated with each of a plurality of respective spatially-separate transmitters and/or receivers, the sets of measurement data being collectively usable for position determination; receiving a set of identity data for each transmitter and/or receiver; filtering the sets of measurement data to exclude one or more of the sets based on filter data indicating one or more impermissible combinations of different identity data sets; and performing position determination of the target device based on the filtered sets of measurement data.
  • the filter data may be pre-determined based on the spatial relationship between the plurality of transmitters associated with the respective identity data sets.
  • Each set of measurement data and identity data may be derived from each of a plurality of positioning reference signals received by the target device from the transmitters and/or receivers and wherein the identity data represents at least a cell identifier associated with the respective transmitter and/or receiver.
  • Each identity data set may further comprise one or more beam identifiers, each identifying a beam of a plurality of beams formed by the respective transmitter, from which the positioning reference signal was received, and wherein the filtering is based on filter data indicating one or more impermissible combinations of different cell and beam identifiers.
  • the filter data may be further pre-determined based on the spatial relationship between beams associated with the respective identity data sets.
  • Each set of measurement data may comprise reference signal time difference (RSTD) data measured by the target device based the respective positioning reference signal.
  • RSTD reference signal time difference
  • Position determination may be performed using an observed time difference of arrival (OTDOA) method using two or more sets of RSTD data.
  • OTDOA observed time difference of arrival
  • the measurement data may be received using an established radio network positioning protocol, e.g. LPP.
  • LPP radio network positioning protocol
  • the method may be performed at a location measurement function of a radio access network.
  • a method comprising: transmitting to an apparatus of any of preceding apparatus definition a set of measurement data and set of identity data derived from each of a plurality of positioning reference signals received from respective spatially-separate transmitters, the set of measurement data being usable for position determination and the set of identity data representing a cell identifier associated with the respective transmitter and a beam identifier identifying a beam of a plurality of beams formed by the respective transmitter, from which the positioning reference signal was received.
  • an apparatus comprising at least one processor, at least one memory directly connected to the at least one processor, the at least one memoiy including computer program code, and the at least one processor, with the at least one memory and the computer program code being arranged to perform the method of any preceding method definition.
  • a computer program product comprising a set of instructions which, when executed on an apparatus, is configured to cause the apparatus to carry out the method of any preceding method definition.
  • a non-transitoiy computer readable medium comprising program instructions stored thereon for performing a method, comprising: receiving, from a target device, a set of measurement data and set of identity data, both derived from each of a plurality of positioning reference signals received by the target device from respective spatially-separate transmitters, the sets of measurement data being collectively usable for position determination and each set of identity data for each transmitter representing at least a cell identifier associated with the respective transmitter; filtering the sets of measurement data to exclude one or more of the sets based on filter data indicating one or more impermissible
  • an apparatus comprising: at least one processor; and at least one memory including computer program code which, when executed by the at least one processor, causes the apparatus: to receive, from a target device, a set of measurement data and set of identity data, both derived from each of a plurality of positioning reference signals received by the target device from respective spatially-separate transmitters, the sets of measurement data being collectively usable for position determination and each set of identity data for each transmitter representing at least a cell identifier associated with the respective transmitter; to filter the sets of measurement data to exclude one or more of the sets based on filter data indicating one or more impermissible combinations of different identity data sets; and to perform position determination of the target device based on the filtered sets of measurement data.
  • a non-transitoiy computer readable medium comprising program instructions stored thereon for performing a method, comprising: transmitting, to an apparatus of any above apparatus definition, a set of measurement data and set of identity data derived from each of a plurality of positioning reference signals received from respective spatially-separate transmitters, the set of measurement data being usable for position determination and the set of identity data representing a cell identifier associated with the respective transmitter and a beam identifier identifying a beam of a plurality of beams formed by the respective transmitter, from which the positioning reference signal was received.
  • an apparatus comprising: at least one processor; and at least one memory including computer program code which, when executed by the at least one processor, causes the apparatus: to transmit to an apparatus of any above apparatus definition a set of measurement data and set of identity data derived from each of a plurality of positioning reference signals received from respective spatially-separate transmitters, the set of measurement data being usable for position determination and the set of identity data representing a cell identifier associated with the respective transmitter and a beam identifier identifying a beam of a plurality of beams formed by the respective transmitter, from which the positioning reference signal was received.
  • an apparatus comprising:
  • a method comprising: receiving, from a target device, a set of measurement data and set of identity data, both derived from each of a plurality of positioning reference signals received by the target device from respective spatially-separate transmitters, the sets of measurement data being collectively usable for position determination and each set of identity data for each transmitter representing at least a cell identifier associated with the respective transmitter; filtering the sets of measurement data to exclude one or more of the sets based on filter data indicating one or more impermissible combinations of different identity data sets; and performing position determination of the target device based on the filtered sets of measurement data.
  • FIG. 1 is a schematic plan view of part of a cellular communications network
  • FIG. 2 is a schematic plan view of the FIG. 1 network part, showing beams of respective transceivers;
  • FIG. 3 is a schematic block diagram of functional modules of a location management function module of the FIG. 1 and FIG. 2 network, according to example embodiments;
  • FIG. 4 is an example of filter data for use in the FIG. 3 location management function, according to example embodiments;
  • FIG. 5 is a flow diagram showing processing operations that may be performed according to example embodiments
  • FIG. 6 is a schematic block diagram of a next-generation radio access network implementation according to example embodiments.
  • FIG. 7 is a block diagram of an apparatus according to an example embodiment
  • FIG. 8 shows a non-transitory media according to an example embodiment
  • FIG. 9 is a schematic representation of an Observed Time Difference of Arrival positioning technique.
  • Example embodiments relate to positioning systems and methods.
  • Example embodiments relate to determining the geographic position of a target device, for example a mobile communications terminal, referred to hereafter as user equipment (UE), by means of signals received from spatially-separate transmitters.
  • UE user equipment
  • the transmitters may be base stations (eNBs) of a radio access network (RAN) or any other form of spatially-separated transmitter that transmits reference signals which can be used, at least in part, to estimate position.
  • eNBs base stations
  • RAN radio access network
  • Any form of user equipment capable of receiving data over a network from spatially-separate transmitters may be used, and may include smartphones, tablet computers, laptops, personal computers and so on.
  • Embodiments involve using so-called Observed Time Difference of Arrival (OTDOA) techniques to determine the location of one or more UEs.
  • OTDOA Observed Time Difference of Arrival
  • embodiments are applicable to any positioning technique that collective uses measured signals derived from geospatially separated transmitters of known location.
  • FIG. 1 shows part 10 of a cellular communications network comprising a plurality of access points (APS 1 - 4) which may be base stations 12, 14, 16, 18.
  • Each base station 12, 14, 16, 18 serves one or more distinct geographic areas or cells.
  • each base station 12, 14, 16, 18 serves three zones, all or some of which may be shown.
  • a first base station 12 serves at least a first cell 20 having cell index (1,1) and a second cell 22 having cell index (1, 2).
  • a second base station 14, serves at least a third cell 24 having cell index (2, 1).
  • a third base station 16 serves at least a fourth cell 26 having cell index (3, 1), a fifth cell 28 having cell index (3, 2) and a seventh cell 31 having a cell index (3,3).
  • a fourth base station 18 serves at least a sixth cell 30 having cell index (4, 3). It will be appreciated that only some cells of an overall cellular space are shown. By serve, it is meant that the base station 12, 14, 16, 18 may transmit and receive radio signals within their respective cells and potentially beyond, albeit at lower power. For example, position reference signals from a base station 12, 14, 16, 18 may be received by user equipment outside of a cell served by a particular base station.
  • the base stations 12, 14, 16, 18 may be of any suitable type, and may comprise one or more antennas.
  • one or more of the base stations 12, 14, 16, 18 may comprise so-called conventional base stations (NodeBs, or NBs) enhanced base stations (eNBs) or next generation base stations (gNBs).
  • Next generation base stations (gNBs) may be appropriate for so-called fifth generation (5G) radio systems, their equivalents and possibly beyond into future generation radio systems.
  • Such gNBs may comprise antenna arrays formed of a plurality of antenna elements, or sub-arrays, which may be configured to perform so-called beamforming.
  • Each antenna element may be connected to an individual transmitter/receiver channel. The more elements that are arrayed, the narrower the beam and higher the gain at the beak of the beam, generally speaking.
  • the signal transmitted or received from some angles will add in-phase as the channels are combined, whereas signals from other angles will subtract and thereby cancel each other (constructive or destructive interference).
  • massive multiple input multiple output is sometimes used to reflect the idea that such base stations may transmit and receive to multiple users at the same time, i.e. multi-user MIMO.
  • each of the base stations 12, 14, 16, 18 is connected to a
  • the AMF 36 is part of the 3GPP 5G architecture and has the main tasks of registration management, connection management, reachability management, mobility management and various functions relating to security and access management and authorization. Other technologies may have equivalent functions, and the provision of an LMF 38 is not in itself essential to the example embodiments.
  • the LMF 38 is part of the network that determines the location of user equipment.
  • a user equipment 32 is shown within the fifth cell 28.
  • the user equipment 32 is one of potentially many hundreds or more within the shown portion 10 of the FIG. 1 cellular network.
  • a terrain obstacle 34 is also shown, for reasons that will follow.
  • the LMF 38 may be used to determine in which cell the user equipment 32 is located and may also be used to determine when the user equipment is approaching the edge of the current cell, e.g. for handover purposes. Other example uses of location knowledge include locating the origin of an emergency telephone call, locating lost or stolen devices, targeted advertising, location-based billing and so on.
  • the LMF 38 may be called a serving mobile location server (SMLC) but it should be appreciated that any suitable node or module for determining location may be used.
  • the LMF 38 may use the LTE Positioning Protocol (LPP) as the point-to- point channel between the LMF 38 and the user equipment 32.
  • LTP LTE Positioning Protocol
  • Observed Time Difference of Arrival (OTDOA) techniques may make use of positioning reference signals (PRS) that are transmitted by the base stations 12, 14, 16, 18.
  • PRS positioning reference signals
  • the LMF 38 may request through the LPP layer OTDOA measurements from the user equipment 32.
  • the user equipment 32 may transmit back over the LPP layer measurements derived from the various PRSs, the measurements representing the measured time difference of arrival (DOA) between the user equipment and two or more of the base stations 12, 14, 16, 18.
  • DOA measured time difference of arrival
  • the line which corresponds to constant time difference, and equivalently, constant distance to two or more transmission points is a hyperbola, where the focal points coincide with the location of the respective transmission points, as shown in FIG. 9 for the case with two transmission points 142, 144 and their respective hyperbolas 146,
  • FIG. 1 the FIG. 1 part 10 of the cellular communications network 10 is shown again but this time with different transmit (and receive) beams, produced by MIMO antenna arrays at the respective base stations 12, 14, 16, 18, in certain ones of the cells, particularly the second, third, fifth, sixth and seventh cells 22, 24, 28, 30, 31. Certain reference numerals shown in FIG. 1 have been removed for clarity. Beams within a given cell 22, 24, 28, 30, 31 are indexed with # numbers, which may be referred to as the beam identifier or index.
  • the user equipment 32 is located in the serving area of the third base station 16, specifically within the fifth cell 28 having index (3, 2), and in this case is served by the beam with beam identifier #7.
  • the user equipment 32 may receive a PRS from the fourth base station 18, particularly from the beam with beam identifier #7.
  • the user equipment 32 may detect another PRS from the second base station 14, specifically from the beam with beam identifier #5, although might disregard this PRS because of the blockage due to the terrain obstacle 34 degrading the signal strength. Instead, the user equipment 32 may receive another PRS from the first base station 12, particularly from the beam with the beam identifier #8.
  • the reference signal time difference (RSTD) derived from each PRS may then be transmitted to the LMF 38 for position resolution. Depending on how the base stations 12, 16, 18 are spatially arranged, this may not present the optimal or most accurate position measurement.
  • Example embodiments may operate such that certain combinations of cell identifiers, or even combinations of cells and beam identifiers, are excluded from measurement to avoid possible inaccuracies.
  • the user equipment 32 is not surrounded by the base stations 12, 16, 18 for which the strongest PRS signals are received; rather, the user equipment has a similar view angle to these base stations.
  • intersection point of the resulting hyperbolas is a surface area rather than a point.
  • the size of the intersection area depends on the relative position of the user equipment 32 to the base stations used in OTDOA. This is compared with the case where the base stations for which PRS signals are used surround the user equipment, at least more uniformly or with a wider view angle.
  • example embodiments provide in the LMF 38 functional modules comprised of a filter 40, filter data 42 and a position determination module 44.
  • the position determination module 44 may comprise any algorithm or processing technique capable of determining position based on two or more reference signals from spatially geographically-separated transmission points. OTDOA is one such example, as may be performed in accordance with the 3GPP TS 25.305 reference incorporated above.
  • the filter 40 may comprise any processing module that is configured to exclude measurements received from the user equipment 32, for example one or more measurements of a set of RSTD measurements. The RSTD measurements may be received over an LPP layer 50.
  • the filter data 42 is a set of data defining what combinations of different cell identifiers, or even combinations of different cell-beam identifiers, are excluded from
  • the filter data 42 may comprise a look-up table (LUT) with predetermined excluded combinations, based on the relative geospatial positions of the different base stations 12, 14, 16, 18.
  • the filter data 42 may be refreshed or updated periodically, for example due to re-positioning of one or more base station positions, the addition of one or more new base stations or other access points or other factors which may reflect the quality of position determination.
  • the filter data 42 may merely comprise a list of excluded combinations.
  • the filter data 42 may comprise Boolean expressions.
  • the filter data 42 may comprise ranges of identifiers. Alternatively, the filter data 42 may comprise data indicating allowed (rather than excluded) combinations, but the filtering effect will be nonetheless the same in that only allowed combinations will be used for position determination by the position determination module 44.
  • FIG. 4 is a schematic view of an example set of filter data 42, comprising two example exclusion rules.
  • the number of exclusion rules may be much larger.
  • a first exclusion rule 52 may prevent a combination of positional
  • a different exclusion rule 54 may prevent a combination of positional measurements being used from beam identifier 7 of the first cell 20, together with beam identifier 7 of the fifth cell 28, together with beam identifier 8 of the seventh cell 31.
  • a range of beam identifiers may be given, e.g. beam identifiers 5 to 8 of the first cell 20.
  • the filter data 42 may refer to combinations relating to any two different cell identifiers. Furthermore, the filter data 42 may specify that, in a given scenario, e.g. the exclusion rule 54 is applied, the particular positioning measurement to drop and the particular positioning measurement to replace it with.
  • the filter data 42 may exclude cell combinations corresponding to base stations 12, 14, 16, 18 substantially in line with one another. Additional examples may include positive filtering, whereby permitted cell combinations are given rather than excluded cell combinations. Regarding FIG. 4, this would include the following combinations:
  • Additional examples may include a filtering rule that defines a standard deviation of the orientation angles of the cells, e.g. using information about one or more of the orientation angles of the cells and the beam configurations etc.
  • the exclusion rule 54 may result in the filter 40 filtering out the positional measurement (OTDOA measurement) derived from the PRS of the first base station 12, beam identifier 8 and instead using the positional measurement derived from the PRS of the second base station 14, beam identifier 5. This is so, even if the received power level from this beam is lower than that of the first base station 12, beam identifier 8, e.g. due to the terrain obstacle 34. It may be found that the different geospatial arrangement of the three beams used as a result of the filtering gives improved accuracy.
  • Example embodiments may implement the above LMF functions using signalling conveyed to the LMF 38 and processing performed at the LMF.
  • the beam identifier corresponding to the measured PRS may provide at least some information from which filtering may be performed.
  • additional signalling including the beam identifier may be transmitted to the LMF 38 with the cell identifier.
  • This signalling may use the LPP protocol and/ possibly the New Radio Positioning Protocol A (NRPPa).
  • NRPPa New Radio Positioning Protocol A
  • Additional processing at the LMF 38 may comprise the above described filtering on the basis of cell identifiers and beam identifiers of the PRS signals involved. For example, given knowledge of the configurations of the base stations 12, 14, 16, 18, specific beam and cell identifier combinations may be excluded based on their geospatial geometry.
  • FIG. 5 is a flow diagram showing example processing operations that may be performed at the LMF 38 in accordance with example embodiments, whether by means of hardware, software or a combination thereof. Additional or less operations may be performed in some embodiments.
  • a first operation 5.1 may comprise receiving, from a target device, a set of measurement data and set of identity data.
  • both sets may be derived from each of a plurality of PRSs received by the target device from respective spatially- separate transmitters.
  • the sets of measurement data maybe collectively usable for position determination and each set of identity data for each transmitter may representing at least a cell identifier associated with the respective transmitter.
  • a second operation 5.2 may comprise filtering the sets of measurement data to exclude one or more of the sets based on filtering data indicating one or more impermissible combinations of different identity data sets.
  • a third operation 5,3 may comprise performing position determination of the target device based on the filtered sets of measurement data.
  • each identity data set may further comprise one or more beam identifiers associated with one or more of the cell identifiers, each identifying a beam of a plurality of beams formed by the respective transmitter, from which the positioning reference signal was received, and wherein the filtering is based on filtering data indicating one or more impermissible combinations of different cell and beam identifiers.
  • Each set of measurement data may comprise reference signal time difference (RSTD) data measured by the target device based the respective positioning reference signal. The position determination is performed using an OTDOA method using two or more sets of RSTD data, although other methods may be used. For completeness, FIG.
  • the architecture comprises a next generation radio access network (RAN) 62 comprising a plurality of next-generation eNodeBs, or gNBs 64, 66.
  • RAN next generation radio access network
  • An AMF 68 and LMF are also provided, as well as an enhanced serving mobile location centre (E- SMLC) 74 and secure user plane location platform (SLP) 46.
  • E- SMLC enhanced serving mobile location centre
  • SLP secure user plane location platform
  • the AMF 68 receives a request for some location service associated with a particular target user equipment 60.
  • the AMF 68 then sends a location services request to an LMF 70 which processes the location services request which may include transferring assistance data to the target user equipment 60 to assist with positioning of said target.
  • the LMF 70 then returns the result of the location service back to the AMF 68, for example an estimate of the position of the user equipment 60.
  • the dashed line 72 indicates that additional information may be transmitted by the user equipment 60 over the LPP layer, including beam identifiers corresponding to each PRS measurement, i.e. an identifier of the beam of a particular cell identifier. Processing is performed in the LMF 70 to filter out impermissible combinations as described above.
  • the additional beam information may be transmitted to the LMF 70 by modification of the parameters defined for OTDOA-SignalMeasurementlnformation in
  • NeighbourMeasurementList SEQUENCE (SIZE (1..24) ) OF
  • AdditionalPathList-rl4 SEQUENCE (SIZE (1.. maxPaths-rl 4 ) ) OF AdditionalPath-rl 4
  • MotionTimeSource-rl5 :: SEQUENCE ⁇
  • the position determination does not have to be performed at the LMF 70 in other example embodiments.
  • the NG-RAN 62 may perform at least some of the position determination functions, if not all.
  • the concepts and principles outlined above may be applied to Uplink-Time Difference of Arrival (UTDOA) technology.
  • the measurement data signals correspond to received Sounding Reference Signals (SRS), or similar, as sent from the target device and received at spatially-separated receiver nodes.
  • the receiver nodes may also be transmitter nodes, but this is not necessarily the case as sometimes the receiver nodes are dedicated to receiving.
  • the received SRSs are collectively usable at some part of the network to estimate position and, dependent on the identities associated with the receiver nodes, filtering may be performed.
  • the identity data may be indicative of the receiver (not strictly a “cell ID” in the traditional sense, but the intended meaning is clear) and, in some embodiments, beam identifiers corresponding to the beams through which the SRSs were received at each receiver.
  • FIG. 7 shows an apparatus according to example embodiment.
  • the apparatus may be configured to perform the operations described herein, for example operations described with reference to FIG. 5.
  • the apparatus may comprise at least one processor 100 and at least one memoiy 120 directly or closely connected to the processor.
  • the memory 120 includes at least one random access memoiy (RAM) 120b and at least one read-only memory (ROM) 120a.
  • Computer program code (software) 125 is stored in the ROM 120b.
  • the apparatus may be connected to a receiver path of a base station in order to obtain LPP layer signals, among others.
  • the apparatus may be connected with a user interface UI for instructing the apparatus and/or for outputting results.
  • the instructions may be input e.g. from a batch file, and the output may be stored in a non-volatile memory.
  • the at least one processor 100, with the at least one memory 120 and the computer program code 125 are arranged to cause the apparatus to at least perform at least the method according to FIG. 5 or any variation thereof as disclosed herein.
  • Fig. 8 shows a non-transitory media 130 according to some embodiments.
  • the non- transitory media 130 is a computer readable storage medium. It may be e.g. a CD, a DVD, a USB stick, a blue ray disk, etc.
  • the non-transitory media 130 stores computer program code, causing an apparatus to perform the method of FIG. 5, or any variation thereof as disclosed herein, when executed by a processor such as processor 100 of FIG. 7-
  • Names of network elements, protocols, and methods are based on current standards. In other versions or other technologies, the names of these network elements and/or protocols and/or methods may be different, as long as they provide a corresponding functionality.
  • embodiments maybe deployed in 2G/3G/4G/5G networks and further generations of 3GPP but also in non-3GPP radio networks such as WiFi.
  • a base station may be a BTS, a NodeB, an eNodeB, a gNodeb, a WiFi access point etc.
  • a memory may be volatile or non-volatile. It may be e.g. a RAM, a sram, a flash memory, a FPGA block ram, a DCD, a CD, a USB stick, and a blue ray disk.
  • each of the entities described in the present description may be based on a different hardware, or some or all of the entities may be based on the same hardware. It does not necessarily mean that they are based on different software. That is, each of the entities described in the present description may be based on different software, or some or all of the entities may be based on the same software.
  • Each of the entities described in the present description may be embodied in the cloud.
  • Implementations of any of the above described blocks, apparatuses, systems, techniques or methods include, as non-limiting examples, implementations as hardware, software, firmware, special purpose circuits or logic, general purpose hardware or controller or other computing devices, or some combination thereof. Some embodiments may be implemented in the cloud.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

L'invention concerne un appareil, un procédé et un programme informatique. L'appareil peut comprendre des moyens pour recevoir, en provenance d'un dispositif cible, un ensemble de données de mesure associées à chacun d'une pluralité d'émetteurs et/ou de récepteurs spatialement séparés, les ensembles de données de mesure étant collectivement utilisables pour une détermination de position. L'appareil peut également comprendre des moyens pour recevoir un ensemble de données d'identité pour chaque émetteur et/ou récepteur. L'appareil peut également comprendre des moyens pour filtrer les ensembles de données de mesure afin d'exclure un ou plusieurs des ensembles sur la base de données de filtre indiquant une ou plusieurs combinaisons inacceptables de différents ensembles de données d'identité. L'appareil peut également comprendre des moyens pour effectuer une détermination de position du dispositif cible sur la base des ensembles filtrés de données de mesure.
PCT/EP2019/053223 2018-11-22 2019-02-11 Détermination de position Ceased WO2020104071A1 (fr)

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Cited By (3)

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Publication number Priority date Publication date Assignee Title
CN113452631A (zh) * 2021-06-04 2021-09-28 广东省大湾区集成电路与系统应用研究院 空间内目标判定方法、装置、计算机设备和存储介质
US11792606B2 (en) 2018-06-25 2023-10-17 Nokia Technologies Oy Position determination
CN117545066A (zh) * 2022-08-02 2024-02-09 维沃移动通信有限公司 定位处理方法、装置及终端

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