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CN114280535A - Method, apparatus, device and readable storage medium for positioning measurement - Google Patents

Method, apparatus, device and readable storage medium for positioning measurement Download PDF

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Publication number
CN114280535A
CN114280535A CN202011043864.3A CN202011043864A CN114280535A CN 114280535 A CN114280535 A CN 114280535A CN 202011043864 A CN202011043864 A CN 202011043864A CN 114280535 A CN114280535 A CN 114280535A
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China
Prior art keywords
rstd
antennas
antenna
measurement
trp
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CN202011043864.3A
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Chinese (zh)
Inventor
司晔
王园园
邬华明
庄子荀
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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Priority to CN202011043864.3A priority Critical patent/CN114280535A/en
Priority to PCT/CN2021/121372 priority patent/WO2022063319A1/en
Publication of CN114280535A publication Critical patent/CN114280535A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W64/00Locating users or terminals or network equipment for network management purposes, e.g. mobility management

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The application discloses a method, a device, equipment and a readable storage medium for positioning measurement, wherein the method comprises the following steps: measuring a first reference signal and reporting a measurement result, wherein the first reference signal is used for positioning the terminal; wherein the measurement results include one or more of: RSTD of different RX antennas; differential RSTD between different RX antennas; synchronization error between TRPs; RSTD of different TRPs. In the embodiment of the application, the TDOA positioning synchronization error can be eliminated, and the positioning precision can be effectively improved.

Description

Method, device and equipment for positioning measurement and readable storage medium
Technical Field
The present application belongs to the field of communications technologies, and in particular, to a method, an apparatus, a device, and a readable storage medium for positioning measurement.
Background
In the DL Time Difference of arrival (DL-TDOA) method for New Radio (NR), a terminal estimates a UE position by measuring a Reference Signal Time Difference (RSTD) performed by a Downlink positioning Reference Signal (DL PRS) from a plurality of Transmission/Reception points (TRPs). FIG. 1 is a diagram of the DL-TDOA location principle. The arrival Time (Time of arrival) of DL PRS from 3 TRPs is measured from the terminal respectively, and the downlink reference signal arrival Time difference (i.e. RSTD) of any 2 TRPs is obtained, and three TRPs can limit the terminal in a very small area and finally estimate the terminal position.
In consideration of the concept of a beam introduced in NR, a concept of a Positioning Reference Signal (PRS resource) is introduced in NR Positioning to represent the concept of a beam. When positioning, the network may configure multiple TRPs for the terminal, where 1 TRP has multiple PRS resource sets (resource sets), and 1 PRS resource set has multiple PRS resources. The terminal obtains a plurality of RSTDs by measuring 1 or a plurality of PRS resource pairs between the receiving and transmitting node pairs (TRP pairs), and then reports the RSTDs to the network equipment.
When the UE reports the RSTD, it selects one TRP as an RSTD reference TRP (reference TRP), and one PRS resource can be used as a reference resource (reference resource) under the reference TRP. In calculating RSTD, the time measurement of reference resource is used as the decrement. For each pair of TRP pair (e.g. a certain TRP and a reference TRP), the terminal reports a maximum of 4 RSTDs (corresponding to the RSTDs of 4 resources relative to reference resource under the TRP, respectively). In each RSTD, the UE additionally reports time measurements of at most 2 paths (additional paths), which is an additional supplement to the RSTD to assist the network device in more accurate positioning.
In TDOA-based positioning, it must be ensured that the individual TRPs participating in the positioning remain absolutely time-synchronized.
In the actual TDOA-based positioning, the Radio frame time of the PRS signal is caused by the Radio frequency hardware (e.g. time asynchronism generated by a local oscillator, or the cable length between a Remote Radio Unit (RRU) and a Baseband processing Unit (BBU))Incomplete synchronization) between TRPs participating in positioning, a synchronization error (TAE) may be generated in time. Especially for positioning based on different time difference of arrival of TRPs, the terminal calculates the RSTD between the TRPs, namely the RSTD calculates the synchronization error between the TRPsmeasure=RSTDtrue+ TAE, here RSTDtrueFor true position corresponding RSTD, RSTDmeasureThe corresponding RSTD is actually measured. Thus, synchronization errors can ultimately lead to a reduction in the accuracy of TDOA location measurements.
Disclosure of Invention
The embodiment of the application provides a method, a device and equipment for positioning measurement and a readable storage medium, and solves the problem of low TDOA positioning measurement precision.
In a first aspect, a method for positioning measurement is provided, which is applied to a terminal, and includes:
measuring a first reference signal and reporting a measurement result, wherein the first reference signal is used for positioning the terminal;
wherein the measurement results include one or more of: reference signal time differences RSTD of different receive RX antennas; differential RSTD between different RX antennas; transmitting a synchronization error between the reception points TRP; RSTD of different TRPs.
In a second aspect, a method for positioning measurement is provided, which is applied to a network side device, and includes:
receiving a measurement result reported by a terminal after measuring a first reference signal, wherein the first reference signal is used for positioning the terminal;
wherein the measurement results include one or more of: RSTD of different RX antennas; differential RSTD between different RX antennas; synchronization error between TRPs; RSTD of different TRPs.
In a third aspect, an apparatus for positioning measurement is provided, which is applied to a terminal, and includes:
the measurement module is used for measuring a first reference signal and reporting a measurement result, wherein the first reference signal is used for positioning the terminal;
wherein the measurement results include one or more of: RSTD of different RX antennas; differential RSTD between different RX antennas; synchronization error between TRPs; RSTD of different TRPs.
In a fourth aspect, an apparatus for positioning measurement is provided, which is applied to a network side device, and includes:
a fourth receiving module, configured to receive a measurement result reported by a terminal after measuring a first reference signal, where the first reference signal is used to locate the terminal;
wherein the measurement results include one or more of: RSTD of different RX antennas; differential RSTD between different RX antennas; synchronization error between TRPs; RSTD of different TRPs.
In a fifth aspect, a terminal is provided, including: a processor, a memory and a program stored on the memory and executable on the processor, which program, when executed by the processor, carries out the steps of the method according to the first aspect.
In a sixth aspect, a network-side device is provided, including: a processor, a memory and a program stored on the memory and executable on the processor, which program, when executed by the processor, carries out the steps of the method according to the second aspect.
In a seventh aspect, there is provided a readable storage medium on which a program or instructions are stored, which when executed by a processor, implement the steps of the method according to the first or second aspect.
In an eighth aspect, there is provided a readable storage medium on which a program or instructions are stored, which program or instructions, when executed by a processor, implement the steps of the method according to the first or second aspect.
In a ninth aspect, there is provided a program product stored on a non-volatile storage medium, the program product being executable by at least one processor to implement the steps of the method of the process as described in the first or second aspect.
In a tenth aspect, a chip is provided, the chip comprising a processor and a communication interface, the communication interface being coupled to the processor, the processor being configured to execute a program or instructions to implement the method of processing according to the first or second aspect.
In the embodiment of the present application, the measurement result of the first reference signal reported by the terminal includes a reference signal time difference RSTD of different RX antenna receiving antennas; differential RSTD between different RX antennas; transmitting a synchronization error between the reception points TRP; one or more items in RSTD of different TRPs can eliminate TDOA positioning synchronization error, and can effectively improve positioning accuracy.
Drawings
FIG. 1 is a DL-TDOA schematic;
FIG. 2 is a schematic diagram of RSTD reporting;
FIG. 3 is a schematic diagram of differential RSTD in an embodiment of the present application;
FIG. 4 is a block diagram of a wireless communication system to which embodiments of the present application are applicable;
FIG. 5 is a schematic diagram of a method of positioning measurement according to an embodiment of the present application;
FIG. 6 is a second schematic diagram of a positioning measurement method according to an embodiment of the present application;
fig. 7 is a schematic diagram illustrating RSTD reporting in an embodiment of the present application;
FIG. 8 is one of the schematic diagrams of an apparatus for positioning measurement of an embodiment of the present application;
FIG. 9 is a second schematic diagram of an apparatus for positioning measurement according to an embodiment of the present application;
fig. 10 is a schematic diagram of a terminal of an embodiment of the present application;
fig. 11 is a schematic diagram of a network-side device according to an embodiment of the present application.
Detailed Description
For the convenience of understanding the embodiment of the present application, the differential RSTD schematic diagram shown in fig. 3 is first introduced. In fig. 3, ToA1/2 is the time of arrival of the TRP1/2 transmitted signal measured by the receiving antenna RX1 of the UE; the RSTD 1' is a reference signal time difference RSTD between the TRP1 and the TRP2 measured by the receiving antenna RX1 of the UE. Similarly, RSTD 2' is the reference signal time difference RSTD between TRP1 and TRP2 measured by RX2 of the UE. Differential RSTD, RSTDDifferentialRX1 and RX for UE2, the time difference of the reference signals between the two. After subtraction, the inherent synchronization error between TRP1 and TRP2 can be eliminated.
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a sequential or chronological order. It should be understood that the data so used are interchangeable under appropriate circumstances such that embodiments of the application can be practiced in sequences other than those illustrated or described herein, and the terms "first" and "second" used herein generally do not denote any order, nor do they denote any order, for example, the first object may be one or more. In the specification and claims, "and" represents at least one of connected objects, and a character "/" generally indicates that a preceding and succeeding related object is in an "or" relationship.
It is noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE)/LTE Evolution (LTE-Advanced) systems, but may also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described techniques can be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. The following description describes, for purposes of example, a new air interface (New Radio, NR) system, and NR terminology is used in much of the description below, but these techniques may also be applied to applications other than NR systems, such as 6 th generation (6)thGeneration, 6G) communication system.
Fig. 4 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 41 and a network-side device 42. Wherein, the terminal 41 may also be called as a terminal Device or a User Equipment (UE), the terminal 41 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer) or a notebook Computer, a Personal Digital Assistant (PDA), a palmtop Computer, a netbook, a super-Mobile Personal Computer (UMPC), a Mobile Internet Device (MID), a Wearable Device (Wearable Device) or a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), and other terminal side devices, the Wearable Device includes: bracelets, earphones, glasses and the like. It should be noted that the specific type of the terminal 41 is not limited in the embodiments of the present application. The network-side device 42 may be a Base station or a core network, wherein the Base station may be referred to as a node B, an evolved node B, an access Point, a Base Transceiver Station (BTS), a radio Base station, a radio transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a WLAN access Point, a WiFi node, a Transmit Receive Point (TRP), or some other suitable terminology in the field, as long as the same technical effect is achieved, the Base station is not limited to a specific technical vocabulary, and it should be noted that in the embodiment of the present application, only the Base station in the NR system is taken as an example, but the specific type of the Base station is not limited. The core network node may be a location server, may be a location server (LMF, location management function) in NR, may also be a location server in LTE, and may also be a location server in other versions.
The method, apparatus, device and readable storage medium for positioning measurement provided by the embodiments of the present application are described in detail with reference to the accompanying drawings.
Referring to fig. 5, an embodiment of the present application provides a method for positioning measurement, where an execution subject of the method may be a terminal, and the method includes: step 501.
Step 501: measuring a first reference signal and reporting a measurement result;
it should be noted that the first Reference Signal is used for downlink positioning, such as PRS, Synchronization Signal Block (SSB), channel state information Reference Signal (CSI-RS), Tracking Reference Signal (TRS), or the like.
Wherein the measurement results include one or more of:
(1) reference Signal Time Difference (RSTD) for different RX antennas;
optionally, the RSTDs of the different RX antennas comprise one or more of: an RX antenna identity, optionally a reference RX antenna identity with other RX antenna identities; RSTD of each RX antenna.
(2) Differential RSTD between different RX antennas;
optionally, the differential RSTD between the different RX antennas comprises one or more of:
(i) a differential RSTD between the plurality of RX antennas and the reference RX antenna;
taking a certain RX antenna as an example, the differential RSTD corresponding to each RX antenna at least includes one of the following: an RX antenna identification; differential RSTD: the RX antenna measuring a difference of the measured RSTD and the reference RX antenna RSTD;
(ii) refer to the information of the RX antenna.
Further, the information of the reference RX antenna includes one or more of: RSTD with reference to RX antennas; a differential RSTD, e.g., set to 0, with reference to the RX antenna; the reference RX antenna identification, i.e. the differential RSTD, is calculated with the measurement result of a certain RX antenna as a reference, and is indicated by the network, agreed by the protocol, or selected by the terminal.
Alternatively, the network may indicate 1 or more RX antenna identifiers as the reference RX antenna, and the UE may indicate the 1 RX antenna identifier, or select one of the indicated multiple RX antenna identifiers according to the network, or select one RX antenna identifier as the reference RX antenna identifier for reporting by itself.
It should be noted that, the differential RSTD between the measurement and reporting RX antennas is the same as the trppair. Further, resource pair is the same for the same set of TRP pairs.
In the embodiment of the application, the UE reports the corresponding measurement result according to the differential RSTD mapping table agreed by the protocol.
(3) Synchronization error between Transmission Reception Points (TRPs);
optionally, the synchronization error between the TRPs comprises one or more of (i) - (vi):
(i) synchronizing error results;
(ii) a reference TRP ID;
wherein, the reference TRP ID may be indicated by the network, agreed by the protocol, or selected by the UE. Alternatively, the reference TRP ID corresponds to the RSTD reference TRP indicated by the network or selected by the UE.
(iii) Identification of synchronization error associations, including at least one of:
(a) the TRP identification information includes at least one of TRP ID (dl-PRS-ID-r16), Physical Cell Identity (PCI), NR Cell Global Identifier (NCGI), Absolute Radio Frequency Channel Number (ARFCN), and the like. Indicating that the synchronization error is a synchronization error of the TRP with a reference TRP.
(b) resource set ID and/or resource ID indicating one or more first reference signals resource and/or resource set associated with the synchronization error measurement.
(iv) The quality of the synchronization error includes at least one of: uncertainty estimated values, granularity of the uncertainty estimated values, and confidence degrees;
both the reference TRP and the other TRPs are included.
(v) Granularity of synchronization error;
for example, the granularity is Tc (the smallest time unit defined by NR), Ts (the most basic time unit of LTE). The granularity is the same as the granularity when the network indicates or the UE reports RSTD.
Optionally, the granularity of the UE reporting may be the same as the granularity in the synchronization error request, or larger/smaller than the granularity in the request.
(vi) The time stamp corresponding to the current synchronization error at least comprises one of the following: an SFN offset; slot offset; subframe offset; granularity of offset: such as one of Ts, Tc, slot (slot), subframe (subframe), millisecond (ms), nanosecond (ns), microsecond (us);
the TRP identifier corresponding to the Time stamp at least comprises one of the following identifiers: TRP ID, PCI, NCGI, ARFCN, etc., further, the time stamp may be based on the timing of the serving cell or reference TRP (network indicated or UE selected reference TRP), if so, the TRP identity may be default; UTC time.
Optionally, the synchronization error measurement result may further include an RX antenna identifier associated with the synchronization error measurement result, which indicates that the synchronization measurement result is measured by the RX antenna corresponding to the RX antenna identifier, and then calculated.
Optionally, the synchronization error measurement result may be carried in the report of the position estimation result.
In the embodiment of the application, the UE reports the corresponding measurement result according to the protocol agreed synchronous error measurement result mapping table.
Optionally, the UE reported synchronization error measurement result is only applicable to RSTDs of different TRPs of the UE based positioning mode (4).
In some embodiments, before step 501, a first request is received, where the first request instructs the terminal to report a measurement result of a first reference signal.
In some embodiments, the first request includes one or more of the following (1) - (9):
(1) RSTD measurement information requests for different RX antennas;
optionally, the RSTD measurement information request of the different RX antennas comprises one or more of: (a) the number of RSTDs corresponds to the number of RX antennas; (b) RX antenna Identification (ID), i.e. a request to report measurement results for a specific RX antenna.
(2) Differential RSTD measurement information request between different RX antennas;
optionally, the differential RSTD measurement information request between different RX antennas includes one or more of the following (a) - (g): (a) the number of differential RSTDs corresponds to the number of RX antennas; (b) the differential RSTD corresponds to a reference RX antenna and is used for reference when calculating the differential RSTD; (c) the granularity of the differential RSTD; (d) an RX antenna identifier for requesting to report the measurement result of a specific RX antenna; (e) a PRS identifier request indication instructing the terminal to report at least one of a TRP ID, a first reference signal resource set (resource set) ID, and a first reference signal resource (resource) ID associated with the measurement result when reporting each differential RSTD; (f) a plurality of TRP marks for indicating the difference RSTD between which TRPs are reported by the UE; (g) the quality of the differential RSTD.
(3) A synchronization error measurement information request between the TRPs; optionally, the synchronization error measurement information request between the TRPs includes one or more of the following (a) to (h):
(a) a synchronization error measurement request indication;
(b) and the plurality of TRP marks indicate which TRP synchronous errors are reported by the terminal. Optionally, the reference TRP indicates that a TRP corresponding to a certain TRP ID among the plurality of TRPs is a synchronization error reference TRP. The synchronization error is a measurement of the other TRPs relative to the reference TRP;
(c) the maximum number of the synchronization errors of each TRP indicates the maximum number of the measurement results of the synchronization errors reported by the UE in each group of TRP pair;
(d) reporting granularity of the synchronous error, and indicating the terminal to report the synchronous error according to the granularity;
(e) synchronous error measurement quality indication, when the indication terminal reports each synchronous error measurement result, the measurement quality of the synchronous error is reported at the same time;
(f) a first reference signal identifier request indication, which indicates that when the terminal reports each synchronization error measurement result, at least one of a TRP ID, a first reference signal resource set ID, and a first reference signal resource ID associated with the measurement result is determined;
(g) the method for reporting the synchronous error comprises the following steps of;
(i) reporting periodically;
if the reporting is periodic, the request for the synchronization error measurement information between the TRPs further comprises one or more of the following items: reporting times, interval of adjacent reporting signaling and resource allocation indication of the reporting signaling.
(ii) And (5) semi-continuously reporting.
If the reporting is semi-continuous reporting, the request for the synchronization error measurement information between the TRPs further comprises one or more of the following items: reporting times, interval of adjacent reporting signaling, resource allocation indication of the reporting signaling, and time offset of the reporting signaling and the request signaling.
(iii) And (6) reporting in an aperiodic way.
If the reporting is non-periodic, the request for the synchronization error measurement information between the TRPs further comprises one or more of the following items: reporting time offset between the signaling and the request signaling, and reporting resource allocation indication of the signaling.
(iv) And (6) reporting immediately.
If the reporting is immediate, the request for the synchronization error measurement information between the TRPs further comprises: and reporting the maximum feedback time between the signaling and the request signaling.
(vi) And triggering and reporting by an event, and reporting spontaneously after meeting the event condition. The event may be one of: the position of a certain TRP is located at the edge of a search window; and the synchronization error result calculated by the terminal is greater than the threshold.
(vii) And reporting together with the position estimate.
(h) Time stamp (time stamp) indication information of the synchronization error.
And the terminal reports (does not exceed) the latest synchronous error measurement result of the time stamp according to the time indicated by the time stamp.
(4) RSTD measurement information requests of different TRPs;
(5) location information request between RX antennas.
And (5) requesting the terminal to report the position information between the RX antennas.
(6) Antenna panel information request associated with RX antenna
(7) RX antenna associated receive beam information request
(8) A terminal device information request;
(9) reference Signal Received Power (RSRP) requests for different RX antennas.
Optionally, the signaling form of the first request may be: one or more combinations of LTE Positioning Protocol (LPP), Radio Resource Control (RRC), medium access Control element (MAC CE) and Downlink Control Information (DCI). Examples of combinations of signaling are: the network side equipment sends a first request through LPP or RRC, wherein the first request carries a request type, request content and requested time information (such as reporting offset in an aperiodic manner, a semi-continuous reporting period and the like); and then sending DCI or MAC CE to activate the UE to report a specific measurement result at a specific time (aperiodic or semi-persistent report).
In some embodiments, in the measurement results measured and/or reported by the multiple RX antennas, the multiple TRP pairs measured and/or reported by each RX antenna are the same.
The TRP pair can be a TRP pair of a certain TRP and a reference TRP, and can also be any 2 TRPs in a plurality of TRPs.
Further, for the same TRP pair, the first reference signal resources measured and/or reported by each RX antenna are the same. Further, the first pair of reference signal resources measured and/or reported by each RX antenna is the same for the same TRP pair.
Further, the time stamp corresponding to each RX antenna measurement result reported by the terminal is the same;
in some embodiments, in the measurement results measured and/or reported by the multiple RX antennas, the reference TRP of the RTSD of each RX antenna is the same; and/or in the measurement results measured and/or reported by a plurality of RX antennas, the RTSD reference resource of each RX antenna is the same; and/or in the measurement results measured and/or reported by the plurality of TRP pairs, the RTSD reference resource set of each RX antenna is the same; and/or in the measurement results measured and/or reported by the plurality of TRP pairs, the time stamp corresponding to each RX antenna measurement result is the same.
In some embodiments, the method further comprises: reporting one or more of the following (1) - (3) to a network side device:
(1) location information between RX antennas;
for example, absolute position information, relative distance information, etc. of the RX antenna in the terminal local coordinate system;
(2) device information antenna panel information of the terminal;
optionally, the antenna panel information at least includes one of the following:
(i) list of antenna panels (panel) with which the RX antennas are associated.
(ii) Identification of antenna panel (panel) with which the RX antenna is associated.
(iii) Spatial position information of the antenna panel.
Optionally, comprising: angle information of the antenna panel, and/or relative position information of the antenna panel. Such as relative position with respect to a (reference) antenna panel.
(iv) Terminal spatial angle information;
reporting angle information of a local reference coordinate system of the terminal in real time (such as angle adjustment of terminal equipment); the angle information includes at least one of: the transformation parameters of the terminal Local Coordinate System (LCS) and the Global Coordinate System (GCS) include at least the angles α (bearing angle), β (downtilt angle) and γ (tilt angle) of the terminal local coordinate system.
For example, the measurement information is reported simultaneously with the RX antenna.
(3) Beam information is received.
Optionally, the receive beam information includes one or more of the following:
(i) the angle of the RX beam;
the angle information of the RX beam may be relative to the terminal local coordinate system or relative to the RX antenna panel corresponding to the RX antenna. Optionally, the angle and granularity of the beam are included;
(iii) the width of the RX beam;
(iii) a list of RX beams;
(iv) identification of RX beams.
Optionally, the information may be reported in the terminal capability information.
In some embodiments, the method further comprises: receiving first information sent by a network side device, wherein the first information indicates the terminal to report one or more of the following (1) - (3):
(1) RSTD of a particular plurality of TRPs;
for example, the network indicates TRP ID.
(2) A measurement of a first resource of a particular TRP;
such as network indication TRP ID, resource set ID, resource ID.
(3) RSTD for a particular time stamp.
Alternatively, multiple TRPs may share the same time stamp; or a plurality of TRPs, each TRP indicating a respective time stamp.
Alternatively, the Time stamp may be a Coordinated Universal Time (UTC) Time.
Alternatively, the time stamp may include at least one of a System Frame Number (SFN) and a slot offset (slot offset) based on timing of a serving cell or a certain TRP (e.g., a reference TRP or TRP itself).
In some embodiments, the method further comprises: receiving second information sent by a network side device, wherein the second information indicates one or more of the following items: (1) a priority of the TRP; (2) priority of the PRS resource set; (3) a priority of the first resource; (4) priority of the reported measurement results.
For example, the network side device indicates the priority of TRP, PRS resource set, PRS resource, and further indicates the UE to measure and report at least measurement results above a certain priority.
In some embodiments, the method further comprises: reporting the terminal capability to network side equipment;
wherein the terminal capabilities include one or more of:
(1) whether multiple RX antenna independent measurements RSTD are supported;
further, reporting and indicating the number of RX antennas of the maximum independent measurement RSTD;
(2) whether RSTD of independent measurement of a plurality of RX antennas is reported is supported;
further, reporting the number of RX antennas to the maximum;
(3) whether reporting of differential RSTD among a plurality of RX antennas is supported;
further, the differential RSTD of at most how many RX antennas are supported to be reported is reported.
Further, report each RX antenna pair, and report the differential RSTD of how many resource (resource pair) at most.
Further, reporting each RX antenna pair, and reporting the differential RSTD of at most how many TRPs (or TRP pairs).
(4) Whether independent calculation and/or cancellation of synchronization errors between TRPs is supported.
Namely, the UE can solve the problem of synchronization error between TRPs without the network equipment sending a synchronization error indication. For example, the UE may measure the RSTD via multiple RX antennas and calculate and/or eliminate the synchronization error via a difference calculation.
Further, the synchronization error results of how many TRPs (or TRP pairs) are reported at most are reported.
Further, reporting the synchronization error result number of each most supported TRP (TRP pair).
Optionally, the number of synchronization error results supporting most resources (or resource pair) is reported.
Further, whether calculation and/or elimination of synchronization errors by means of multiple RX measurements is supported or not is also included.
Optionally, the number of the most supported RX antennas is reported.
In the embodiment of the present application, the RX antenna may also be expressed as: reference point (reference point), receive reference point (RX reference point), receive antenna reference point (RX antenna reference point), Individual receiver branch (inductive receiver branch), receiver branch (receiver branch), receive point (receiver point), one of the antenna panels (antenna panel).
In this embodiment, the network side device may include: a location server and/or a serving gbb.
Wherein, the signaling between the location server and the UE includes but is not limited to one or more of the following: LPP, NRPP, a combination of NRPPa and (signaling between gNB and UE), a combination of LPPa and (signaling between gNB and UE).
Wherein, the signaling between the gNB and the UE includes but is not limited to one or more of the following: radio Resource Control (RRC), medium access Control element (MAC CE), Downlink Control Information (DCI), message 1(Msg1), message 3(Msg3), broadcast signaling, Paging message (Paging), and Physical Uplink Control Channel (PUCCH).
In the embodiment of the application, the TDOA positioning synchronization error can be eliminated through the measurement result of the first reference signal reported by the terminal, and the positioning precision can be effectively improved.
Referring to fig. 6, an embodiment of the present application provides a method for positioning measurement, where an execution subject of the method may be a network side device, and the method includes: step 601.
Step 601: receiving a measurement result reported by a terminal after measuring a first reference signal, wherein the first reference signal is used for positioning the terminal;
wherein the measurement results include one or more of: (1) reference signal time differences RSTD for different RX antennas; (2) differential RSTD between different RX antennas; (3) synchronization error between TRPs; (4) RSTD of different TRPs (5) reference Signal received Power RSRP of different RX antennas
In some embodiments, the method further comprises: and sending a first request, wherein the first request indicates the terminal to report the measurement result after measuring the first reference signal.
In some implementations, the first request includes one or more of: (1) RSTD measurement information requests for different RX antennas; (2) differential RSTD measurement information request between different RX antennas; (3) a synchronization error measurement information request between the TRPs; (4) RSTD measurement information requests of different TRPs; (5) location information request between RX antennas; (6) reference signal received power, RSRP, requests for different RX antennas; (7) an antenna panel information request associated with an RX antenna; (8) a request for receive beam information associated with the RX antenna; (9) and requesting terminal equipment information.
Optionally, after the first reference signal measurement is performed, reporting an RSRP measurement result, where the RSRP measurement result includes at least one of the following:
(i) whether the downlink reference signals corresponding to the measurement results of the different RX antennas are received by the same RX beam.
(ii) And RX beam identifications corresponding to the measurement results of the different RX antennas.
In the embodiment of the application, the TDOA positioning synchronization error can be eliminated through the measurement result of the first reference signal reported by the terminal, and the positioning precision can be effectively improved.
Example 1:
this embodiment provides a plurality of reporting modes of differential RSTD.
Referring to fig. 7, a differential RSTD between a reference TRP and an adjacent TRP is taken as an example, and 2 RX antennas (a reference RX antenna (RX1), and other RX antennas (RX2)) are taken as an example.
The first method is as follows:
the difference RSTD reported by the UE by RX2 relative to RX1 at least comprises one of the following components:
(1) neighbor TRP measurements;
optionally, the neighbor TRP measurements comprise at least one of:
(i) reporting a difference RSTD of each resource (or resource pair) of RX2 and RX 1;
optionally, the RSTD for each resource is calculated with a reference resource before calculating the differential RSTD.
Such as the difference between RSTD and RX1 of RX2 adjacent to TRP resource #0 and reference TRP resource # 0; RX2 difference between RSTD and RX1 of adjacent TRP resource #1 and reference TRP resource # 0; RX2 difference between RSTD and RX1 of adjacent TRP resource #2 and reference TRP resource # 0.
Optionally, the measurement quality of the differential RSTD of each resource is reported.
(ii) At least reporting the measurement result of the additional path in each resource by one of RX1 and RX 2.
Optionally, additional path is calculated relative to RSTD for each resource (i.e., timing offset within resource).
(2) Reference TRP measurement:
optionally, referring to the TRP measurements, comprising at least one of:
(i) reporting at least one reference TRP measurement result of RX1 and RX 2;
(ii) timing offset of other resources relative to reference resource in reference TRP
(iii) In the TRP reference, each resource is added with a conditional path measurement result.
Optionally, the timing offset (timing offset) of the extra path (additional path) is relative to reference resource or the timing offset within resource.
The second method comprises the following steps:
the difference RSTD reported by the UE by RX2 relative to RX1 at least comprises one of the following components:
(1) neighbor TRP measurements;
optionally, the neighbor TRP measurements comprise at least one of:
(i) a differential RSTD between RX2 and RX1 resource X; optionally, resource X may be indicated by the network, agreed upon by the protocol, or selected by the terminal.
(ii) The difference between the RSTD of RX2 and RX1 and the difference between RSTD of resource X and resource X;
(iii) the measured quality of each differential RSTD;
(iv) at least reporting timing offset of the additional path in one of RX1 and RX 2.
Optionally, the timing offset of the additional path is relative to resource X or is within resource
(2) Reference TRP measurements;
optionally, the reference TRP measurement comprises at least one of:
(i) reporting at least one reference TRP measurement result of RX1 and RX 2;
(ii) referring to timing offsets of other resources relative to reference resource in the TRP;
(iii) referring to TRP, adding a conditional path measurement result under each resource;
optionally, the timing offset of the additional path is relative to reference resource or a timing offset within resource.
The third method comprises the following steps:
the UE reports the differential RSTD of RX2 relative to RX 1.
Optionally, at least one of:
(1) neighbor TRP measurements;
optionally, the neighbor TRP measurements comprise at least one of:
(i) a differential RSTD between RX2 and RX1 resource X; optionally, resource X may be indicated by the network, agreed upon by the protocol, or selected by the terminal
(ii) The measured quality of each differential RSTD;
(iii) reporting RX1 and RX2 at least one of timing offsets of other resources relative to resource X;
(iv) reporting timing offset of at least one of RX1 and RX2 and additional path;
optionally, the timing offset of the additional path is relative to resource X or the timing offset within resource;
(2) reference to a measurement of TRP;
optionally, the reference TRP measurement comprises at least one of:
(1) reporting at least one reference TRP measurement result of RX1 and RX 2;
(2) referring to timing offsets of other resources relative to reference resource in the TRP;
(3) referring to TRP, adding a conditional path measurement result under each resource;
optionally, the timing offset of the additional path is relative to reference resource or a timing offset within resource.
Example 2:
and reporting the mapping table by the UE when the difference RSTD and the synchronous error are reported.
(1) Differential RSTD mapping table
Table 1: differential RSTD reporting mapping for k being 0 (Differential RSTD reporting for k being 0)
Figure BDA0002707403450000171
Table 2: differential RSTD reporting mapping for k 1
Figure BDA0002707403450000172
When the UE reports the measurement result, the range of the differential RSTD is 0- [ 8191%]T△RSTDThe reported resolution step size (granularity) is 2k×T△RSTD,k=0,1…[5]Representing different levels of granularity.
The granularity of the differential RSTD is finer than the normal RSTD granularity, taking into account the distance between the UE RX antennas. Thus setting T△RSTD=Tc/2n,n=0,1…[5],T△RSTDIs smaller than or equal to TcThe unit of (c).
Diffstd is RSTD1 '-RSTD 1, where RSTD1 is the RSTD of the reference RX antenna, RSTD 1' is the RSTD of the RX antenna, and the difference is the differential RSTD.
And when reporting, the UE reports the numerical value and the granularity of the differential RSTD according to the table 1 and the table 2.
In tables 1 and 2, the differential RSTD is a positive value, the RSTD of the reference RX antenna is the smallest among the plurality of RX antennas, or the UE selects the RX antenna having the smallest RSTD as the reference RX antenna.
In another differential RSTD mapping table, as shown in table 3 and table 4, the differential RSTD result may be positive or negative, and DIFFRSTD is RSTD1 '-RSTD 1, where RSTD1 is the RSTD of the reference RX antenna, RSTD 1' is the RSTD of a certain RX antenna, and the difference is the differential RSTD. The RSTD of the reference RX antenna is not necessarily the smallest among the plurality of RX antennas.
Table 3: differential RSTD reporting mapping for k being 0 (Differential RSTD reporting for k being 0)
Figure BDA0002707403450000191
Table 4: differential RSTD reporting mapping for k 1
Figure BDA0002707403450000192
When the UE reports the measurement result, the range of the differential RSTD is-4096- [4096 [ -4096 ]]T△RSTD
(2) Tables of the mapping reported by the Timing Alignment Error (TAE) are shown in tables 5 and 6.
Table 5: synchronous error reporting mapping with k being 0 (TAE reporting for k being 0)
Figure BDA0002707403450000201
Table 6: synchronous error reporting mapping for k 1 (TAE reporting for k 1)
Figure BDA0002707403450000202
When the UE reports the measurement result, the range of the TAE measurement result is 0- [8191 [ ]]TTAEThe reported resolution step size (granularity) is 2 kXTTAE,k=0,1…[5]Representing different levels of granularity.
TTAE=Tc/2n,n=0,1…[5]。
When the measurement result is reported, the UE reports the value and granularity of the TAE according to tables 5 and 6.
Note that TAE is negative, indicating that the SFN deviation of TRP1 from the reference TRP is smaller than the true value; TAE is positive, indicating that the SFN deviation of TRP1 from the reference TRP is greater than the true value.
Referring to fig. 8, an embodiment of the present application provides a positioning measurement apparatus, which is applied to a terminal, where the apparatus 800 includes:
a measurement module 801, configured to measure a first reference signal and report a measurement result, where the first reference signal is used to locate the terminal;
wherein the measurement results include one or more of: RSTD of different receive RX antennas; differential RSTD between different RX antennas; synchronization error between TRPs; RSTD of different TRPs.
In an embodiment of the present application, the apparatus 800 further includes:
a first receiving module, configured to receive a first request, where the first request indicates the terminal to report a measurement result for measuring a first reference signal.
In an embodiment of the application, the first request comprises one or more of:
(1) RSTD measurement information requests for different RX antennas;
(2) differential RSTD measurement information request between different RX antennas;
(3) a synchronization error measurement information request between the TRPs;
(4) RSTD measurement information requests of different TRPs;
(5) location information request between RX antennas;
(6) an antenna panel information request associated with an RX antenna;
(7) a request for receive beam information associated with the RX antenna;
(8) a terminal device information request;
(9) reference signal received power, RSRP, requests for different RX antennas.
In an embodiment of the present application, the RSTD measurement information request of the different RX antennas includes one or more of the following:
(1) the number of RSTDs;
(2) RX antenna identification.
In an embodiment of the present application, the differential RSTD measurement information request between different RX antennas includes one or more of the following:
(1) a differential RSTD number;
(2) differential RSTD corresponds to a reference RX antenna;
(3) the granularity of the differential RSTD;
(4) an RX antenna identification;
(5) a first reference signal identification request indication;
(6) a plurality of TRP identifiers;
(7) the quality of the differential RSTD.
In an embodiment of the present application, the request for synchronization error measurement information between TRPs includes one or more of the following:
(1) a synchronization error measurement request indication;
(2) a plurality of TRP identifiers;
(3) maximum number of synchronization errors per TRP;
(4) reporting granularity of synchronous errors;
(5) a synchronization error measurement quality indication;
(6) a first reference signal identification request indication;
(7) a synchronous error reporting mode;
(8) time stamp indication information of the synchronization error.
In the embodiment of the present application, in the measurement results measured and/or reported by multiple RX antennas, multiple TRP pairs measured and/or reported by each RX antenna are the same.
In the embodiment of the present application, for the same TRP pair, the first reference signal resource pair measured and/or reported by each RX antenna is the same; for the same TRP pair, the first reference signal resource set pair measured and/or reported by each RX antenna is the same; and/or, the time stamp corresponding to each RX antenna measurement result is the same for the same TRP pair.
In the embodiment of the present application, in the measurement results obtained by measuring and/or reporting the plurality of TRP pairs, the reference TRP of the RTSD of each of the plurality of RX antennas is the same; and/or in the measurement results measured and/or reported by the plurality of TRP pairs, the RTSD reference resource of each RX antenna is the same; and/or in the measurement results measured and/or reported by the plurality of TRP pairs, the RTSD reference resource set of each RX antenna is the same; and/or in the measurement results measured and/or reported by the plurality of TRP pairs, the time stamp corresponding to each RX antenna measurement result is the same.
In an embodiment of the present application, the RSTD of the different RX antennas includes one or more of the following:
(1) an RX antenna identification;
(2) RSTD of each RX antenna.
In an embodiment of the present application, the differential RSTD between the different RX antennas includes one or more of the following:
(1) a differential RSTD between the plurality of RX antennas and the reference RX antenna;
(2) refer to the information of the RX antenna.
In an embodiment of the present application, the information of the reference RX antenna includes one or more of the following items:
(1) RSTD with reference to RX antennas;
(2) a differential RSTD for a reference RX antenna;
(3) reference is made to the RX antenna identification.
In an embodiment of the application, the synchronization error between the TRPs includes one or more of:
(1) synchronizing error results;
(2) a reference TRP ID;
(3) an identification of synchronization error associations;
(4) the quality of the synchronization error;
(5) granularity of synchronization error;
(6) time stamp corresponding to the current synchronization error.
In an embodiment of the present application, the apparatus 800 further includes:
the first sending module is configured to report one or more of the following items to the network side device: location information between RX antennas, device information of the terminal, antenna panel information, and reception beam information.
In an embodiment of the present application, the apparatus 800 further includes:
a second receiving module, configured to receive first information sent by a network side device, where the first information indicates that the terminal reports one or more of the following items:
(1) RSTD of a plurality of TRPs;
(2) a measurement result of a first reference signal resource of a specific TRP;
(3) RSTD for a particular time stamp.
In an embodiment of the present application, the apparatus 800 further includes:
a third receiving module, configured to receive second information sent by a network side device, where the second information indicates one or more of the following:
(1) a priority of the TRP;
(2) a priority of the first set of reference signal resources;
(3) a priority of the first reference signal resource;
(4) priority of the reported measurement results.
In an embodiment of the present application, the apparatus 800 further includes:
the second sending module is used for reporting the terminal capability to the network side equipment;
wherein the terminal capabilities include one or more of:
(1) whether multiple RX antenna independent measurements RSTD are supported;
(2) whether RSTD of independent measurement of a plurality of RX antennas is reported is supported;
(3) whether reporting of differential RSTD among a plurality of RX antennas is supported;
(4) whether independent calculation and/or cancellation of synchronization errors between TRPs is supported.
The device provided in the embodiment of the present application can implement each process implemented by the method embodiment shown in fig. 5, and achieve the same technical effect, and for avoiding repetition, details are not described here again.
Referring to fig. 9, an embodiment of the present application provides a positioning measurement apparatus, which is applied to a network side device, where the apparatus 900 includes:
a fourth receiving module 901, configured to receive a measurement result reported by a terminal after measuring a first reference signal, where the first reference signal is used to locate the terminal;
wherein the measurement results include one or more of: RSTD of different RX antennas; differential RSTD between different RX antennas; synchronization error between TRPs; RSTD of different TRPs.
In an embodiment of the present application, the apparatus 900 further includes:
a third sending module, configured to send a first request, where the first request indicates the terminal to report a measurement result of the first reference signal.
In an embodiment of the application, the first request comprises one or more of:
(1) RSTD measurement information requests for different RX antennas;
(2) differential RSTD measurement information request between different RX antennas;
(3) a synchronization error measurement information request between the TRPs;
(4) RSTD measurement information requests of different TRPs;
(5) location information request between RX antennas;
(6) an antenna panel information request associated with an RX antenna;
(7) a request for receive beam information associated with the RX antenna;
(8) and requesting terminal equipment information.
The device provided in the embodiment of the present application can implement each process implemented by the method embodiment shown in fig. 6, and achieve the same technical effect, and for avoiding repetition, details are not described here again.
Fig. 10 is a schematic hardware structure diagram of a terminal implementing the embodiment of the present application.
The terminal 1000 includes, but is not limited to: a radio frequency unit 1001, a network module 1002, an audio output unit 1003, an input unit 1004, a sensor 1005, a display unit 1006, a user input unit 1007, an interface unit 1008, a memory 1009, and a processor 1010.
Those skilled in the art will appreciate that terminal 1000 can also include a power supply (e.g., a battery) for powering the various components, which can be logically coupled to processor 1010 via a power management system to provide management of charging, discharging, and power consumption via the power management system. The terminal structure shown in fig. 10 does not constitute a limitation of the terminal, and the terminal may include more or less components than those shown, or combine some components, or have a different arrangement of components, and thus will not be described again.
It should be understood that in the embodiment of the present application, the input Unit 1004 may include a Graphics Processing Unit (GPU) 10041 and a microphone 10042, and the Graphics Processing Unit 10041 processes image data of still pictures or videos obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 1006 may include a display panel 10061, and the display panel 10061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1007 includes a touch panel 10071 and other input devices 10072. The touch panel 10071 is also referred to as a touch screen. The touch panel 10071 may include two parts, a touch detection device and a touch controller. Other input devices 10072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.
In this embodiment of the application, the radio frequency unit 1001 receives downlink data from a network side device and then processes the downlink data to the processor 1010; in addition, the uplink data is sent to the network side equipment. In general, radio frequency unit 1001 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
The memory 1009 may be used to store software programs or instructions and various data. The memory 1009 may mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area may store an operating system, an application program or instruction (such as a sound playing function, an image playing function, and the like) required for at least one function, and the like. Further, the Memory 1009 may include a high-speed random access Memory and may also include a nonvolatile Memory, where the nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable Programmable PROM (EPROM), an Electrically Erasable Programmable ROM (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.
Processor 1010 may include one or more processing units; alternatively, processor 1010 may integrate an application processor that handles primarily the operating system, user interface, and applications or instructions, etc., and a modem processor that handles primarily wireless communications, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into processor 1010.
The terminal provided in the embodiment of the present application can implement each process implemented by the method embodiment shown in fig. 5, and achieve the same technical effect, and for avoiding repetition, details are not described here again.
The embodiment of the application also provides network side equipment. As shown in fig. 11, the network-side device 1100 includes: antenna 1101, radio frequency device 1102, baseband device 1103. An antenna 1101 is connected to the radio frequency device 1102. In the uplink direction, the rf device 1102 receives information via the antenna 1101, and sends the received information to the baseband device 1103 for processing. In the downlink direction, the baseband device 1103 processes information to be transmitted and transmits the processed information to the rf device 1102, and the rf device 1102 processes the received information and transmits the processed information through the antenna 1101.
The above-mentioned band processing means may be located in the baseband apparatus 1103, and the method performed by the network side device in the above embodiment may be implemented in the baseband apparatus 1103, where the baseband apparatus 1103 includes a processor 1104 and a memory 1105.
The baseband apparatus 1103 may include at least one baseband board, for example, and a plurality of chips are disposed on the baseband board, as shown in fig. 11, where one chip, for example, the processor 1104, is connected to the memory 1105 and calls the program in the memory 1105 to perform the network device operations shown in the above method embodiments.
The baseband apparatus 1103 may further include a network interface 1106, such as a Common Public Radio Interface (CPRI), for exchanging information with the rf apparatus 1102.
Specifically, the network side device in the embodiment of the present application further includes: the instructions or programs stored in the memory 1105 and capable of being executed on the processor 1104, the processor 1104 invokes the instructions or programs in the memory 1105 to execute the methods executed by the modules shown in fig. 9, and achieve the same technical effects, which are not described herein for avoiding repetition.
Embodiments of the present application also provide a program product stored on a non-volatile storage medium for execution by at least one processor to implement the steps of a method of processing as described in fig. 5 or fig. 6.
An embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the method embodiment shown in fig. 5 or fig. 6, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
Wherein, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.
The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a network-side device program or an instruction, to implement each process of the method embodiment shown in fig. 2, and can achieve the same technical effect, and details are not repeated here to avoid repetition.
It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip or a system-on-chip, etc.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present application.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (25)

1. A method for positioning measurement is applied to a terminal, and is characterized by comprising the following steps:
measuring a first reference signal and reporting a measurement result, wherein the first reference signal is used for positioning the terminal;
wherein the measurement results include one or more of: reference signal time differences RSTD of different receive RX antennas; differential RSTD between different RX antennas; transmitting a synchronization error between the reception points TRP; RSTD of different TRPs.
2. The method of claim 1, further comprising:
and receiving a first request, wherein the first request indicates the terminal to report a measurement result of measuring a first reference signal.
3. The method of claim 2, wherein the first request comprises one or more of:
RSTD measurement information requests for different RX antennas;
differential RSTD measurement information request between different RX antennas;
a synchronization error measurement information request between the TRPs; RSTD measurement information requests of different TRPs;
location information request between RX antennas;
reference signal received power, RSRP, requests for different RX antennas;
an antenna panel information request associated with an RX antenna;
a request for receive beam information associated with the RX antenna;
and requesting terminal equipment information.
4. The method according to claim 3, wherein the RSTD measurement information request of different RX antennas comprises one or more of:
the number of RSTDs;
RX antenna identification.
5. The method according to claim 3, wherein the differential RSTD measurement information request between different RX antennas comprises one or more of:
a differential RSTD number;
differential RSTD corresponds to a reference RX antenna;
the granularity of the differential RSTD;
an RX antenna identification;
a first reference signal identification request indication;
a plurality of TRP identifiers;
the quality of the differential RSTD.
6. The method of claim 3, wherein the request for synchronization error measurement information between TRPs comprises one or more of:
a synchronization error measurement request indication;
a plurality of TRP identifiers;
maximum number of synchronization errors per TRP;
reporting granularity of synchronous errors;
a synchronization error measurement quality indication;
a first reference signal identification request indication;
a synchronous error reporting mode;
timestamp stamp indication information of the synchronization error.
7. The method of claim 1, wherein the plurality of TRP pairs measured and/or reported by each RX antenna are the same in measurement results measured and/or reported by a plurality of RX antennas.
8. The method according to claim 7, characterized in that the first reference signal resource pair measured and/or reported by each RX antenna is the same for the same TRP pair;
and/or the presence of a gas in the gas,
for the same TRP pair, the first reference signal resource set pair measured and/or reported by each RX antenna is the same;
and/or the presence of a gas in the gas,
for the same TRP pair, the time stamp corresponding to each RX antenna measurement is the same.
9. The method of claim 7, wherein in the measurement results of the plurality of TRP pairs, the reference TRP of the RTSD of each of the plurality of RX antennas is the same;
and/or the presence of a gas in the gas,
in the measurement results measured and/or reported by the plurality of TRP pairs, the RTSD reference resource of each RX antenna is the same;
and/or the presence of a gas in the gas,
in the measurement results measured and/or reported by the plurality of TRP pairs, the RTSD reference resource sets of each RX antenna are the same;
and/or the presence of a gas in the gas,
in the measurement results measured and/or reported by the plurality of TRP pairs, the time stamp corresponding to the measurement result of each RX antenna is the same.
10. The method according to claim 1, wherein the RSTD of the different RX antennas comprises one or more of:
an RX antenna identification;
RSTD of each RX antenna.
11. The method according to claim 1, wherein the differential RSTD between different RX antennas comprises one or more of:
a differential RSTD between the plurality of RX antennas and the reference RX antenna;
refer to the information of the RX antenna.
12. The method of claim 11, wherein the information of the reference RX antenna comprises one or more of:
RSTD with reference to RX antennas;
a differential RSTD for a reference RX antenna;
reference is made to the RX antenna identification.
13. The method of claim 1, wherein the synchronization error between the TRPs comprises one or more of:
synchronizing error results;
a reference TRP ID;
an identification of synchronization error associations;
the quality of the synchronization error;
granularity of synchronization error;
time stamp corresponding to the current synchronization error.
14. The method of claim 1, further comprising:
reporting one or more of the following items to network side equipment: location information between RX antennas, device information of the terminal, antenna panel information, and reception beam information.
15. The method of claim 1, further comprising:
receiving first information sent by a network side device, wherein the first information indicates the terminal to report one or more of the following items:
RSTD of a plurality of TRPs;
a measurement result of a first reference signal resource of a specific TRP;
RSTD for a particular time stamp.
16. The method of claim 1, further comprising:
receiving second information sent by a network side device, wherein the second information indicates one or more of the following items:
a priority of the TRP;
a priority of the first set of reference signal resources;
a priority of the first reference signal resource;
priority of the reported measurement results.
17. The method of claim 1, further comprising:
reporting the terminal capability to network side equipment;
wherein the terminal capabilities include one or more of:
whether multiple RX antenna independent measurements RSTD are supported;
whether RSTD of independent measurement of a plurality of RX antennas is reported is supported;
whether reporting of differential RSTD among a plurality of RX antennas is supported;
whether independent calculation and/or cancellation of synchronization errors between TRPs is supported.
18. A method for positioning measurement is applied to network side equipment, and is characterized by comprising the following steps:
receiving a measurement result reported by a terminal after measuring a first reference signal, wherein the first reference signal is used for positioning the terminal;
wherein the measurement results include one or more of: RSTD of different RX antennas; differential RSTD between different RX antennas; synchronization error between TRPs; RSTD of different TRPs.
19. The method of claim 18, further comprising:
and sending a first request, wherein the first request indicates the terminal to report the measurement result of the first reference signal.
20. The method of claim 18, wherein the first request comprises one or more of:
RSTD measurement information requests for different RX antennas;
differential RSTD measurement information request between different RX antennas;
a synchronization error measurement information request between the TRPs;
RSTD measurement information requests of different TRPs;
location information request between RX antennas;
reference signal received power requests for different RX antennas;
an antenna panel information request associated with an RX antenna;
a request for receive beam information associated with the RX antenna;
and requesting terminal equipment information.
21. A positioning measurement device applied to a terminal is characterized by comprising:
the measurement module is used for measuring a first reference signal and reporting a measurement result, wherein the first reference signal is used for positioning the terminal;
wherein the measurement results include one or more of: RSTD of different RX antennas; differential RSTD between different RX antennas; synchronization error between TRPs; RSTD of different TRPs.
22. A positioning measurement device is applied to a network side device, and is characterized by comprising:
a fourth receiving module, configured to receive a measurement result reported by a terminal after measuring a first reference signal, where the first reference signal is used to locate the terminal;
wherein the measurement results include one or more of: RSTD of different RX antennas; differential RSTD between different RX antennas; synchronization error between TRPs; RSTD of different TRPs.
23. A terminal, comprising: a processor, a memory and a program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the method of any one of claims 1 to 17.
24. A network-side device, comprising: processor, memory and program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the method according to any one of claims 18 to 20.
25. A readable storage medium, characterized in that it stores thereon a program or instructions which, when executed by a processor, implement the steps of the method according to any one of claims 1 to 20.
CN202011043864.3A 2020-09-28 2020-09-28 Method, apparatus, device and readable storage medium for positioning measurement Pending CN114280535A (en)

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