CN115119136A - Positioning method, terminal and network side equipment - Google Patents

Positioning method, terminal and network side equipment Download PDF

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Publication number
CN115119136A
CN115119136A CN202110286726.6A CN202110286726A CN115119136A CN 115119136 A CN115119136 A CN 115119136A CN 202110286726 A CN202110286726 A CN 202110286726A CN 115119136 A CN115119136 A CN 115119136A
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Prior art keywords
information
reference signal
positioning reference
positioning
adjacent
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Inventor
庄子荀
王园园
司晔
邬华明
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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Priority to CN202110286726.6A priority Critical patent/CN115119136A/en
Priority to PCT/CN2022/080913 priority patent/WO2022194144A1/en
Publication of CN115119136A publication Critical patent/CN115119136A/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0617Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/08Testing, supervising or monitoring using real traffic
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/10Scheduling measurement reports ; Arrangements for measurement reports
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02Services making use of location information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02Services making use of location information
    • H04W4/025Services making use of location information using location based information parameters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W40/00Communication routing or communication path finding

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  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The application discloses a positioning method, a terminal and network side equipment, which belong to the technical field of wireless communication, and the positioning method of the embodiment of the application comprises the following steps: the terminal determines a target positioning reference signal; the terminal determines first measurement information of the target positioning reference signal and/or reports the first measurement information of the target positioning reference signal, wherein the first measurement information is used for determining terminal position information; wherein the target positioning reference signal is determined according to at least one of the following modes: pre-defining rules; first auxiliary information sent by a network side, wherein the first auxiliary information is used for configuring information related to positioning reference signal beams; the first request information is used for indicating a positioning reference signal or configuration update which the network side desires to report.

Description

Positioning method, terminal and network side equipment
Technical Field
The application belongs to the technical field of wireless communication, and particularly relates to a positioning method, a terminal and network side equipment.
Background
In the downlink angle Positioning method, a User Equipment (UE, also referred to as a terminal) measures Reference Signal Received Power (RSRP) based on a Positioning Reference Signal (PRS), and reports a measurement result of at most 8 RSRPs to a Local Management Function (LMF), so that the LMF can perform Positioning.
In the enhancement of the R17 downlink departure angle (AoD) method, in order to further improve AoD positioning accuracy, RSRP of some PRSs may be measured and/or reported to improve positioning accuracy. However, the UE does not know which PRSs' RSRPs are more favorable for improving positioning accuracy.
Disclosure of Invention
The embodiment of the application provides a positioning method, a terminal and a network side device, which can solve the problem of how to determine a positioning reference signal to be measured and/or reported by the terminal so as to improve positioning accuracy.
In a first aspect, a positioning method is provided, including:
the terminal determines a target positioning reference signal;
the terminal determines first measurement information of the target positioning reference signal and/or reports the first measurement information of the target positioning reference signal, wherein the first measurement information is used for determining terminal position information;
wherein the target positioning reference signal is determined according to at least one of the following modes:
pre-defining rules;
first auxiliary information sent by a network side, wherein the first auxiliary information is used for configuring information related to positioning reference signal beams;
the first request information is used for indicating a positioning reference signal or configuration update which the network side desires to report.
In a second aspect, a positioning method is provided, including:
the LMF sends at least one of the following to the terminal:
first assistance information for configuring positioning reference signal beam related information;
the first request information is used for indicating a positioning reference signal or configuration update which a network side desires to report;
and/or
The LMF receives first auxiliary information sent by a base station, wherein the first auxiliary information is used for configuring information related to positioning reference signal beams.
In a third aspect, a positioning method is provided, including:
the base station sends at least one of the following to the terminal:
first assistance information for configuring positioning reference signal beam related information;
the first request information is used for indicating a positioning reference signal or configuration update which is expected to be reported by a network side;
and/or the presence of a gas in the gas,
and the base station sends first auxiliary information to the LMF, wherein the first auxiliary information is used for configuring information related to positioning reference signal beams.
In a fourth aspect, there is provided a positioning apparatus comprising:
a determining module for determining a target positioning reference signal;
a processing module, configured to determine first measurement information of the target positioning reference signal and/or report the first measurement information of the target positioning reference signal;
wherein the target positioning reference signal is determined according to at least one of the following modes:
pre-defining rules;
first auxiliary information sent by a network side, wherein the first auxiliary information is used for configuring information related to positioning reference signal beams;
the first request information is used for indicating a positioning reference signal or configuration update which the network side desires to report.
In a fifth aspect, there is provided a positioning device comprising:
a first sending module, configured to send at least one of the following to a terminal:
first assistance information for configuring positioning reference signal beam related information;
the first request information is used for indicating a positioning reference signal or configuration update which a network side desires to report;
and/or
The LMF receives first auxiliary information sent by a base station, wherein the first auxiliary information is used for configuring information related to positioning reference signal beams.
In a sixth aspect, there is provided a positioning device comprising:
a first sending module, configured to send at least one of the following to a terminal:
first assistance information for configuring positioning reference signal beam related information;
the first request information is used for indicating a positioning reference signal or configuration update which a network side desires to report;
and/or
A second sending module, configured to send first assistance information to the LMF, where the first assistance information is used to configure information related to a positioning reference signal beam.
In a seventh aspect, a terminal is provided, the terminal comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method according to the first aspect.
In an eighth aspect, a terminal is provided, which includes a processor and a communication interface, wherein the processor is configured to determine a target positioning reference signal; determining first measurement information of the target positioning reference signal, and/or reporting the first measurement information of the target positioning reference signal, wherein the first measurement information is used for determining terminal position information;
wherein the target positioning reference signal is determined according to at least one of the following modes:
pre-defining rules;
first auxiliary information sent by a network side, wherein the first auxiliary information is used for configuring information related to a positioning reference signal beam;
the first request information is used for indicating a positioning reference signal or configuration update which the network side desires to report.
In a ninth aspect, a network side device is provided, which comprises a processor, a memory and a program or instructions stored on the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the method according to the second or third aspect.
A tenth aspect provides a network side device, including a processor and a communication interface, where the communication interface is configured to send at least one of the following to a terminal:
first assistance information for configuring positioning reference signal beam related information;
the first request information is used for indicating a positioning reference signal or configuration update which a network side desires to report;
and/or
Receiving first auxiliary information sent by a base station, wherein the first auxiliary information is used for configuring information related to positioning reference signal beams. In an eleventh aspect, a network side device is provided, which includes a processor and a communication interface, where the communication interface is configured to send, to a terminal, at least one of:
first assistance information for configuring positioning reference signal beam related information;
the first request information is used for indicating a positioning reference signal or configuration update which is expected to be reported by a network side;
and/or
First assistance information sent to an LMF, the first assistance information being used for configuring information related to a positioning reference signal beam.
In a twelfth 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 aspect, or implement the steps of the method according to the second aspect, or implement the steps of the method according to the third aspect.
In a thirteenth aspect, a chip is provided, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to execute a network-side device program or instructions to implement the method according to the first aspect, or to implement the method according to the second aspect, or to implement the method according to the third aspect.
In a fourteenth 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 a method as in the first aspect, or to implement a method as in the second aspect, or to implement a method as in the third aspect.
In the embodiment of the present application, the terminal is instructed to measure and/or report the first measurement information of which target positioning reference signals by using the predefined rule, the network side configuration and/or the network side request, which is more favorable for improving the positioning accuracy, so that the UE can determine the more optimal positioning reference signals and report the first measurement results of the positioning reference signals, thereby improving the accuracy of AOD.
Drawings
Fig. 1 is a block diagram of a wireless communication system to which embodiments of the present application are applicable;
fig. 2 is a schematic diagram of how to select a beam in the method of downlink AOD measurement;
FIG. 3 is a schematic diagram of a two-dimensional beam pattern of two beams;
FIG. 4 is a schematic diagram of a method of downstream AOD measurement;
fig. 5 is a schematic flowchart of a positioning method according to an embodiment of the present application;
fig. 6 is a schematic diagram illustrating a method for determining a positioning reference signal corresponding to a transmission beam adjacent to the first positioning reference signal transmission beam according to an embodiment of the present application;
fig. 7 is a schematic diagram illustrating a method for determining a positioning reference signal corresponding to a transmission beam adjacent to the first positioning reference signal transmission beam according to another embodiment of the present application;
fig. 8 is a schematic flowchart of a positioning method according to another embodiment of the present application;
FIG. 9 is a schematic flowchart illustrating a positioning method according to another embodiment of the present application;
FIG. 10 is a schematic diagram illustrating a method for determining a target positioning reference signal according to a predefined rule according to an embodiment of the present application;
fig. 11 is a schematic diagram of a method for determining a target positioning reference signal according to first request information sent by a network side according to an embodiment of the present application;
fig. 12 is a schematic diagram illustrating a method for reporting first measurement information of a PRS that is dynamically indicated to be adjacent or better by a network side according to an embodiment of the present application;
FIG. 13 is a schematic structural diagram of a positioning device according to an embodiment of the present application;
FIG. 14 is a schematic structural diagram of a positioning device according to another embodiment of the present application;
FIG. 15 is a schematic structural diagram of a positioning device according to yet another embodiment of the present application;
fig. 16 is a schematic structural diagram of a communication device according to an embodiment of the present application;
fig. 17 is a schematic diagram of a hardware structure of a terminal according to an embodiment of the present application;
fig. 18 is a schematic hardware structure diagram of a network device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described below clearly 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 that can be derived from the embodiments given herein by a person of ordinary skill in the art are intended to be within the scope of the present disclosure.
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 particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in other sequences than those illustrated or otherwise described herein, and that the terms "first" and "second" used herein generally refer to a class and do not limit the number of objects, for example, a first object can be one or more. In addition, "and/or" in the specification and the claims means at least one of connected objects, and a character "/" generally means that a preceding and succeeding related objects are 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 a New Radio (NR) system for purposes of example, and NR terminology is used in much of the description below, but the techniques may also be applied to applications other than NR system applications, such as generation 6 (6) th Generation, 6G) communication system.
Fig. 1 is a block diagram showing a wireless communication system to which an embodiment of the present application is applicable. The wireless communication system includes a terminal 11 and a network-side device 12. Wherein, the terminal 11 may also be called as a terminal Device or a User Equipment (UE), the terminal 11 may be a Mobile phone, a Tablet Computer (Tablet Computer), a Laptop Computer (Laptop Computer) or called as 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, and the Wearable Device includes: smart watches, bracelets, earphones, glasses, and the like. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 11. The network-side device 12 may be a Base Station or a core network, wherein the Base Station may be referred to as a node B, an enodeb, 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 home enodeb, a WLAN access Point, a WiFi node, a Transmit Receive Point (TRP), or some other suitable term 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 device may be a location management device, such as an LMF, E-SLMC, or the like.
The following describes in detail a positioning method, a terminal, and a network device provided in the embodiments of the present application with reference to the accompanying drawings through specific embodiments and application scenarios thereof.
The following first explains a communication noun related to the present application.
1.1 starting angle (AoD)
Referring to fig. 2, downlink AOD measurement selects a corresponding beam by measuring multiple RSRPs (i.e., energy in fig. 2) (which beam reports which beam (or reports identification information (transmission and reception beams)) when the measured energy is large).
1.2 Beam (Beam) identification information
The identification information of the beam is distinguished according to the identification information of the PRS, i.e., different PRS (PRS Resource Set ID and PRS Resource ID) are transmitted by different beams. The different PRSs include different Angle information (PRS Angle Item).
Referring to table 1, table 1 shows PRS beam information in an NR system.
TABLE 1
Figure BDA0002980769770000081
Referring to table 2, table 2 is a description of the number of resources of PRS of the PRS resource set.
TABLE 2
Figure BDA0002980769770000091
1.3 RSRP at UE side reports the following description of codes for reporting RSRP at UE side.
Figure BDA0002980769770000092
Figure BDA0002980769770000101
For UE-assisted (UE-assisted) positioning, plus additional measurement (additional measurement), the UE may report a total of 8 RSRPs. For UE-based positioning, UE implementation dependent.
1.4 method for AoD precision optimization according to beam pattern and RSRP
As shown in fig. 3, the thin and thick solid lines are two-dimensional beam patterns of beam1 and beam2, respectively, where the abscissa corresponds to the angle of the beam and the ordinate corresponds to the normalized beam response.
The UE receives m PRSs and obtains m RSRPs based on the measurement of the m PRSs, and if the UE selects n RSRPs from the m RSRPs to report, an n-dimensional vector [ RSP1 RSRP2 … … RSRPn ] can be formed based on the n RSRPs.
On the LMF side, knowing the beam pattern of the transmission beam corresponding to each PRS, if the angular granularity is 1, the beam response of the transmission beam of the PRS corresponding to the n RSRPs can be obtained over 360 angles, where the beam response vector is [ beam response1 beam response1 … … beam response ], and the euclidean distance is obtained for the two vectors (the RSRP vector and the corresponding beam vector reported by the UE), and the angle corresponding to the vector with the minimum euclidean distance is the AOD angle to be measured.
Referring to fig. 4, a specific procedure is shown, where the selected n RSRPs include the strongest PRS and neighboring PRS, the optimization accuracy is high. For example, when the actual AOD corresponds to a beam that is darkened in the figure, the measured RSRP of the PRS corresponding to the darkened beam is the strongest, and at this time, if the measured RSRP of the PRS corresponding to neighboring beams, such as beams on both sides of the darkened beam, are also reported, the AOD optimization accuracy is higher.
However, when the UE reports RSRP of PRS, it cannot be determined explicitly which PRS transmission beams are adjacent or better. When the reported PRS transmitting beam angles have large difference or do not include PRSs of adjacent beams, the optimization effect is obviously reduced when the LMF utilizes the RSRP to perform AOD optimization. In addition, the RSRP number reported by each Transmission and Reception Point (TRP) of each UE is uncertain, and may be 8 at most. When the reported RSRP comprises the RSRP of the adjacent beams, better AOD optimization performance can be achieved only by reporting a smaller number of RSRPs.
Referring to fig. 5, an embodiment of the present application provides a positioning method, including:
step 51: the terminal determines a target positioning reference signal;
in the embodiment of the present application, the number of the target positioning reference signals determined by the terminal may be one or more.
Step 52: the terminal determines first measurement information of the target positioning reference signal and/or reports the first measurement information of the target positioning reference signal, wherein the first measurement information is used for determining terminal position information;
wherein the target positioning reference signal is determined according to at least one of the following modes:
predefining rules;
first auxiliary information sent by a network side, wherein the first auxiliary information is used for configuring information related to positioning reference signal beams;
the first request information is used for indicating a positioning reference signal or configuration update which the network side desires to report.
In the embodiment of the application, the terminal is instructed to measure and/or report the first measurement information of which target positioning reference signals in a mode of at least one of predefined rules, network side configuration and network side request, so that the positioning accuracy can be improved, the UE can determine the better positioning reference signals, and measure and/or report the first measurement results of the positioning reference signals, so that the accuracy of AOD can be improved.
The following (a) explains the contents of the first measurement information.
In this embodiment of the application, optionally, the first measurement information includes at least one of:
1) RSRP information;
2) phase information;
3) first path RSRP information;
in the current protocol, RSRP is RSRP of PRS (average or weighted RSRP of multipath), RSRP information of a first path is RSRP of a first path measured by UE, and RSRP information of a reference path is RSRP of a certain reference path measured by UE, which are all measured based on path (path).
4) First path phase information;
5) reference path RSRP information;
6) reference radial phase information;
7) RSRP difference information from the reference path;
8) phase difference information from a reference path;
9) RSRP difference information with the first path;
10) phase difference information from the first path;
11) first precoding matrix information.
In this embodiment, optionally, the definition of the head path includes one of the following:
1) the first path is a first detected path obtained by measuring a PRS resource or an SRS resource, namely the path with the minimum distance between the time of receiving the path and the starting time of a subframe i, wherein the subframe i is a subframe of receiving the PRS resource or the SRS resource;
2) the first path is a path which measures a PRS resource or an SRS resource and is detected first, that is, the distance between the time when the path is received and the starting time of a symbol i is the smallest, wherein a subframe i is the symbol when the PRS resource or the SRS resource is received;
3) the first path is a path with the minimum time delay among a plurality of PRS resources or SRS resources, wherein the first detected path under each PRS resource or SRS resource is the path with the minimum distance between the time of receiving the path and the starting time of a subframe i, and the subframe i is the subframe of receiving the PRS resource or SRS resource, and the path with the minimum time delay among the first detected paths is the first path of the PRS resource or SRS resource;
4) the first path is used for measuring a plurality of PRS resources or SRS resources, the path with the smallest time delay in each first detected path, wherein the path with the smallest distance between the time of receiving the path and the starting time of a symbol i is the first path of the PRS resources or SRS resources, the symbol i is a subframe for receiving the PRS resources or SRS resources, and the path with the smallest time delay in each first detected path is the first path;
the definition of the primary path RSRP includes one of:
1) amplitude value of CIR response corresponding to first path
2) Received energy/power of channel corresponding to head path
3) A linear average of the power of resource elements of DL PRS reference signals carrying RSRP measurement configurations over the considered measurement frequency bandwidth over the primary path.
The definition of the head path phase comprises one of the following:
1) a phase value of the CIR response corresponding to the first path;
2) a linear average of the phase values of the resource elements of the DL PRS reference signals carrying RSRP measurement configurations over the head path within the considered measurement frequency bandwidth.
3) The phase value of the DL PRS reference signal carrying the RSRP measurement configuration on the head path of each resource element within the considered measurement frequency bandwidth.
The definition of the head path angle includes one of the following:
1) the angle of arrival/angle of departure of the primary path is at a horizontal and/or vertical angle with respect to a reference direction, wherein the reference direction may be the Global Correlation System (GCS) or the Local Correlation System (LCS);
the definition of the first path RSTD includes one of:
1) a downlink subframe relative time difference between a Transmission Point (TP) j and a reference TP i is defined as TSubframe Rxj-TSubframe Rxi, wherein the downlink subframe j and the downlink subframe i are respectively a subframe of a first path of a received positioning reference signal;
2) a downlink symbol relative time difference between a Transmission Point (TP) j and a reference TP i is defined as TSubframeRxj-TSubframeRxi, wherein the downlink symbol j and the downlink symbol i are respectively symbols of a first path of a received positioning reference signal;
the definition of the first path TOA includes one of:
1) a relative time difference of a start of a subframe i received by a Receiving Point (RP) j with respect to a reference time, wherein the subframe i is a subframe of a head path in which a positioning reference signal is received;
2) the relative time difference of the start of the symbol i received by the Reception Point (RP) j with respect to the reference time, where the symbol i is the symbol of the head path of the received positioning reference signal.
In this embodiment of the application, optionally, the first precoding matrix information is used to determine angle information, and includes at least one of:
index of precoding matrix with maximum RSRP;
the index of the precoding matrix with the maximum first path RSRP;
index of the bandwidth precoding matrix with maximum RSRP;
the index of the bandwidth pre-coding matrix with the maximum first path RSRP;
the index of the narrowband precoding matrix with the maximum RSRP;
the index of the narrowband precoding matrix with the maximum first path RSRP;
a precoding matrix index;
the RSRP corresponding to the precoding matrix index;
a first path RSRP corresponding to a precoding matrix index;
an adjacent precoding matrix index;
RSRP corresponding to adjacent precoding matrix indexes;
a first path RSRP corresponding to the adjacent precoding matrix indexes;
a wideband precoding matrix index;
the RSRP corresponding to the broadband precoding matrix index;
a first path RSRP corresponding to the broadband precoding matrix index;
an adjacent wideband precoding matrix index;
RSRP corresponding to the adjacent broadband precoding matrix indexes;
a first path RSRP corresponding to an adjacent broadband precoding matrix index;
a narrowband precoding matrix index;
the RSRP corresponding to the narrowband precoding matrix index;
a first path RSRP corresponding to the narrowband precoding matrix index;
an adjacent narrowband precoding matrix index;
RSRP corresponding to the adjacent narrowband precoding matrix indexes;
and the first path RSRP corresponding to the adjacent narrowband precoding matrix indexes.
The precoding matrices and the angle information are in one-to-one correspondence, and it can be understood that one precoding matrix corresponds to one angle, and by searching the precoding matrices, each precoding matrix and channel can calculate one RSRP (energy), or each precoding matrix and first path channel can calculate one first path RSRP (first path energy), the angle corresponding to the precoding matrix with the largest energy is an estimated angle of arrival, and the energy value and the index value of the adjacent precoding matrices contribute to further improving the positioning accuracy.
Optionally, the adjacent precoding matrix is indicated by at least one of the following manners:
1) indication by Precoding Matrix Indicator (PMI) index;
for example, the precoding matrix indexes are adjacent, and the three precoding matrices with precoding matrix indexes of 1,2, and 3 are adjacent precoding matrices.
2) The angle corresponding to the precoding matrix is used for indicating.
For example, the precoding matrices are adjacent to each other in terms of angles, and assuming that 360 precoding matrices are provided and the corresponding angles are 0,1,2 … …, 359, the precoding matrices with angles corresponding to 1,2,3 degrees are adjacent precoding matrices.
The first measurement information in the above embodiment is generally used for an AOD positioning method, but of course, the AOD positioning method may also be combined with other positioning methods, in this case, optionally, the first measurement information further includes at least one of the following:
1) reference Signal Time Difference (RSTD) information or RSTD Difference information of a first path;
the RSTD difference information may be RSTD with respect to PRS resource or RSTD difference information with respect to a reference path or other paths.
2) RSTD information or RSTD difference information of the reference path;
the RSTD difference information may be RSTD with respect to PRS resource, or difference information of RSTD with respect to the head path or other paths.
3) RSTD information or RSTD difference information of other paths (additional paths);
the RSTD difference information may be RSTD with respect to PRS resource or RSTD difference information with respect to the head path or the reference path.
4) Time of arrival (TOA) information or TOA difference information of the first path;
the TOA difference information may be TOA relative to PRS resource or TOA relative to a reference path or other paths.
5) TOA information or TOA difference information of the reference path;
the TOA difference information may be TOA with respect to PRS resource or TOA with respect to the head path or the reference path.
6) TOA information or TOA difference information of other paths;
the TOA difference information may be TOA relative to PRS resource or TOA relative to a reference path or other paths.
7) Receiving and sending time difference (Rx-Tx timing difference) information or Rx-Tx timing difference information of the head path;
the Rx-Tx timing difference information may be TOA relative to PRS resource, or the Rx-Tx timing difference information relative to a reference path or other paths.
8) Rx-Tx timing difference information or Rx-Tx timing difference information of the reference path;
the Rx-Tx timing difference information may be TOA relative to PRS resource, or the Rx-Tx timing difference information relative to the head path or other paths.
9) Rx-Tx timing difference information or Rx-Tx timing difference information of other paths;
the Rx-Tx timing difference information may be TOA relative to PRS resource, or Rx-Tx timing difference information relative to the head path or the reference path.
Wherein the other path is a path other than the first path or the reference path.
Next, the content of the first auxiliary information will be described.
In this embodiment of the present application, optionally, the first auxiliary information includes at least one of the following:
1) identifying information of a positioning reference signal resource; for example, the sending and receiving point id (trp id), resource set id (resource set id), resource id (resource id), etc. of the positioning reference signal resource.
2) A first list of positioning reference signal identification information, the first list of positioning reference signal identification information being identification information of positioning reference signals corresponding to beams adjacent to a positioning reference signal resource transmission beam;
in this embodiment, optionally, the first list of positioning reference signal identification information is configured based on each PRS resource, that is, one PRS resource corresponds to one first list of positioning reference signal identification information.
Optionally, the first list of the positioning reference signal identification information includes at least one of:
a) a first list of horizontal direction positioning reference signal identification information;
the horizontal direction positioning reference signal identification information first list is for indicating identification information of a PRS of which a horizontal direction transmission beam is adjacent to a transmission beam of the PRS.
b) A first list of vertical direction positioning reference signal identification information;
c) a first list of three-dimensional directional positioning reference signal identification information.
2) A second list of positioning reference signal identification information, the second list of positioning reference signal identification information being identification information of positioning reference signals adjacent to a transmission beam;
in this embodiment, optionally, the second list of positioning reference signal identification information is configured based on each PRS resource set, that is, one PRS resource set corresponds to one second list of positioning reference signal identification information.
The type of the second list of positioning reference signal identification information comprises at least one of:
a second list of horizontal direction positioning reference signal identification information; the second list of horizontal direction positioning reference signal identification information is for indicating identification information of a plurality of PRSs adjacent to the horizontal direction transmission beam.
A second list of vertical positioning reference signal identification information;
a second list of three-dimensional directional positioning reference signal identification information.
3) Positioning the sending beam angle information corresponding to the reference signal resource;
optionally, the information of the angle of the transmission beam includes at least one of:
a transmit beam horizontal angle;
transmitting a beam vertical angle;
angle error information;
angle confidence information;
and transmitting the beam width information.
4) Positioning the transmission beam index information corresponding to the reference signal resource;
optionally, the type of the transmission beam index information includes at least one of:
a) transmitting a beam index in a horizontal direction;
for example, if there are 8 beams in the horizontal direction, there are 8 horizontal direction transmission beam indexes, and PRSs with the same transmission beam horizontal angle correspond to the same horizontal direction transmission beam index.
b) Transmitting a beam index in a vertical direction;
for example, if there are 8 beams in the vertical direction, there are 8 vertical direction transmission beam indexes, and PRSs with the same vertical angle of the transmission beam correspond to the same vertical direction transmission beam index.
c) Transmitting a beam index in a three-dimensional direction;
for example, if there are 8 beams in each of the horizontal and vertical directions, one way is to use a set of horizontal-vertical transmission beam indices to represent the three-dimensional transmission beam indices, e.g., [2,3] representing the three-dimensional beams corresponding to the second beam angle in the horizontal direction and the third beam angle in the vertical direction; another way is to number the indices according to the number of three-dimensional beams, if there are 64 beams in total, then there are 64 three-dimensional beam indices.
5) Positioning the sending beam group information corresponding to the reference signal resource;
optionally, the information of the transmit beam group includes at least one of:
a) transmitting beam group identification information;
optionally, the type of the transmission beam group identification information includes at least one of:
transmitting beam group identification information in a horizontal direction;
transmitting beam group identification information in a vertical direction;
the beam group identification information is transmitted in the three-dimensional direction.
b) The number of beams in the beam group is transmitted.
Optionally, the sending beam group information further includes: and second positioning reference signal identification information configured by the network side and used for indicating a positioning reference signal corresponding to a central beam of one transmission beam group.
In this embodiment, one positioning reference signal resource may correspond to multiple transmit beam groups, for example, for a reference signal whose positioning reference signal resource ID is 3, its beam group information includes {1,2,3}, where the positioning reference signal resource ID corresponding to beam group 1 is {1,2,3}, the positioning reference signal resource ID corresponding to beam group 2 is {2,3,4}, and the positioning reference signal resource ID corresponding to beam group 3 is {3,4,5 };
in this embodiment of the application, when the network side configures the second positioning reference signal identification information, the central beam of the transmission beam group may be determined according to the second positioning reference signal identification information, for example, for the positioning reference signal resource3, when the network side configures the two positioning reference signal identification information of the beam group as 2, it is described that the beam group corresponding to the positioning reference signal resource3 at this time is 1, that is, the beam group of the positioning reference signal resource2 at the middle position, so as to determine the beam group corresponding to the positioning reference signal resource.
In this embodiment, when the network side does not configure the second positioning reference signal identification information, it may determine the beam group corresponding to the positioning reference signal resource according to the measured RSRP, for example, for the positioning reference signal resource3, when the measured RSRP of the positioning reference signal resource3 is the maximum, which means that the beam group of the positioning reference signal resource3 at the time is corresponding to 2, that is, the beam group of the positioning reference signal resource3 at the middle position.
Optionally, the indication manner of the sending beam group information includes at least one of the following:
a) a list mode indication; the transmission beam group representing the PRS as transmission beam group {1,2,3} includes transmission beam group 1, transmission beam group 2, and transmission beam group 3;
b) direct indications, e.g., indicating that the transmit beam groups of the PRS are group 1, group 2, group 3.
6) Positioning priority information corresponding to reference signal resources, wherein the priority comprises a measurement priority and/or a reporting priority;
7) transmit beam angle range (angle search window information);
8) the number of transmission beams to be measured and/or reported;
9) the number of adjacent transmit beams;
the adjacent transmission beams refer to a spatial relationship that the transmission beams of the positioning reference signal are adjacent in space, and may be adjacent in the horizontal direction, adjacent in the vertical direction, or adjacent in the three-dimensional direction.
In the embodiment of the present application, the number of adjacent transmission beams is less than 1.
10) Transmitting a type of beam, the type of beam comprising at least one of: a horizontal transmission beam, a vertical transmission beam, a three-dimensional transmission beam;
11) indication mode of adjacent wave beam;
optionally, the indication manner of the adjacent beam includes at least one of:
indicating by a positioning reference signal ID;
indicating by the transmission time sequence of the positioning reference signals;
indicating by a reception time sequence of the positioning reference signals;
indicating through a first list of positioning reference signal identification information;
indicating by a second list of positioning reference signal identification information;
indicating by transmitting beam angle information;
indicating by transmitting beam index information;
the indication is made by transmitting beam group information.
Optionally, the target positioning reference signal is a positioning reference signal in a second list of positioning reference signal identification information.
12) Base station side antenna information;
optionally, the base station side antenna information includes at least one of:
panel information;
antenna information within the panel;
antenna spacing within the panel;
terminal device angle information;
antenna virtualization information;
calibration information;
beam angle error information;
phase error information.
In this embodiment, optionally, the panel information includes at least one of the following: panel identification information; panel number information; panel position information.
Wherein, the panel identification information is:
1) the panel ID, such as 1 … M1, in which case the panel identification information can be used together with the reception beam identification information divided per panel to distinguish the reception beams.
2) The number of panels, in this case, the reception beam identification information divided by each UE, may be determined along with the number of identification information. If the ID is less than 8, the panel is considered as panel No. 1, if the ID is odd, for example, panel No. 1 if the ID is odd
The panel position information includes, but is not limited to, at least one of: arrangement information of the plurality of panels; panel spacing; the position of the panel relative to the local coordinate system or the global coordinate system of the terminal.
The antenna information within the panel includes, but is not limited to, at least one of: antenna identification information; information on the number of antennas; antenna position information; antenna polarization information.
The antenna location information includes, but is not limited to, at least one of: arrangement information of the plurality of antennas; the antenna spacing; an antenna aperture; the location of the antenna within the panel, etc.
The terminal device angle information includes: the angle information of the local coordinate system of the terminal, such as the transformation parameters of the local coordinate system and the global coordinate system of the terminal, at least includes the angles α (bearing angle), β (downtilt angle) and γ (inclination angle) of the local coordinate system of the terminal.
Optionally, the UE moves or turns over, so that the terminal device angle information may be reported in real time.
The antenna virtualization information includes, but is not limited to, at least one of: TXRU virtualization assumptions; channel state information-reference signal (CSI-RS) port mapping information; sounding Reference Signal (SRS) port mapping information; SRS-pos port mapping information; PRS port mapping information, etc.
The calibration information includes, but is not limited to, at least one of: whether the plurality of panels have calibrated group delay (groupdelay); whether beam angle deviation has been calibrated, etc. (since group delay or beam angle deviation may affect beam pattern or angle determination); timing error group (Timing error group) TEG information; the group delay calibration value for each TEG.
In the embodiment of the application, the terminal receives the base station side antenna information, can generate the corresponding precoding matrix pool according to the base station side antenna information, and can perform channel estimation or acquire calibration information more accurately.
13) Second precoding matrix information.
Optionally, the second precoding matrix information includes at least one of:
a narrowband precoding matrix pool;
a wideband precoding matrix pool;
oversampling parameters;
discrete Fourier Transform (DFT) coefficients.
In the embodiment of the present application, the terminal may directly obtain the precoding matrix pool according to the second precoding matrix information issued by the network side, or generate the corresponding precoding matrix pool according to the oversampling parameter and the DFT coefficient.
In the embodiment of the present application, the first auxiliary information may be configured under one or more frequency layers (frequency layers), TRPs, resource sets (resource sets), or resources (resources).
(III) the contents of the predefined rules are explained below.
In this embodiment of the application, optionally, the predefined rule includes at least one of:
the target positioning reference signal comprises a first positioning reference signal and a positioning reference signal corresponding to a transmission beam adjacent to the first positioning reference signal transmission beam;
the target positioning reference signal comprises a first positioning reference signal and a positioning reference signal belonging to the same resource set (resource set) or the same transmission beam group or the same priority as the first positioning reference signal, wherein the priority comprises a measurement priority and/or a reporting priority;
the target positioning reference signal comprises a positioning reference signal for which first measurement information is greater than first threshold information, wherein the first threshold information is predefined;
wherein the first positioning reference signal comprises at least one of:
positioning reference signals with the maximum RSRP;
a positioning reference signal with the maximum first path RSRP;
and the reference path RSRP is the maximum positioning reference signal.
Optionally, the number of the target positioning reference signals is determined according to at least one of the following:
1) determining the number of the transmission beams which need to be measured and/or reported and are indicated in the first auxiliary information or the first request information;
optionally, the number of measured and/or reported target positioning reference signals is the same as the number of transmission beams that need to be measured and/or reported and are indicated in the first auxiliary information or the first request information.
2) Determining according to the number of adjacent transmission beams indicated in the first assistance information or first request information;
optionally, the number of measured and/or reported target positioning reference signals is the number of adjacent transmission beams indicated in the first assistance information or the first request information plus 1.
3) Determining according to the number of beams in the transmission beam group indicated in the first assistance information or the first request information;
optionally, the number of measured and/or reported target positioning reference signals is the same as the number of beams in the sending beam group indicated in the first auxiliary information or the first request information.
4) Determining according to the type of the transmission beam indicated in the first auxiliary information or the first request information;
for example, the number is X (X is equal to 3 or more than 3) in the case of a horizontal beam or a vertical beam, and the number is Y (Y is equal to 5 or more than 5) in the case of a three-dimensional beam.
5) According to the number of predefined transmission beams;
optionally, the number of measured and/or reported target positioning reference signals is the same as the number of predefined transmission beams.
6) According to a predefined number of adjacent transmit beams.
Optionally, the number of measured and/or reported target positioning reference signals is the predefined number of adjacent transmission beams plus 1.
7) According to the specific number of positioning reference signals indicated in the first request information.
Optionally, the number of reported target positioning reference signals is the same as the specific positioning reference signal data.
Optionally, the positioning reference signal corresponding to the transmission beam adjacent to the first positioning reference signal transmission beam includes at least one of:
1) a positioning reference signal adjacent to the first positioning reference signal identification information (e.g., resourced id);
such as a positioning reference signal (M >0) that differs from a first positioning reference signal identifying information (e.g., resourced) by less than M.
As shown in fig. 6, for example, the transmission beams corresponding to [ PRS resource1, PRS resource2, PRS resource3, PRS resource4, PRS resource5, PRS resource6] are [ beam1, beam2, beam3, beam4, beam5, beam6], respectively, then the transmission beams adjacent to the PRS resource3 transmission beam are PRS resource2 and PRS resource 4.
2) A positioning reference signal adjacent to a transmission time of the first positioning reference signal;
for example, a positioning reference signal (M >0) whose transmission time with the first positioning reference signal is less than M.
As shown in fig. 7, for example, [ PRS resource2, PRS resource5, PRS resource1, PRS resource3, PRS resource6, PRS resource4] in transmission time ordering, then the positioning reference signals adjacent to the positioning reference signal corresponding to the transmission beam of PRS resource3 are the positioning reference signals corresponding to PRS resource1 and PRS resource 6.
3) A positioning reference signal adjacent to a reception time of the first positioning reference signal;
for example, a positioning reference signal with a reception time with the first positioning reference signal being less than N (N > 0).
4) A positioning reference signal adjacent to the transmission beam angle information of the first positioning reference signal;
for example, a positioning reference signal (L >0) having a difference in transmission beam angle information from the first positioning reference signal of less than L.
5) Positioning reference signals adjacent to beam index information of the first positioning reference signal;
6) a positioning reference signal identical to the transmission beam group information of the first positioning reference signal;
7) the positioning reference signal of the first positioning reference signal identifies a positioning reference signal in a first list of information.
Optionally, when the positioning reference signal corresponding to the transmission beam adjacent to the first positioning reference signal transmission beam is a positioning reference signal adjacent to the first positioning reference signal identification information, the identification information sequence of the positioning reference signal and the sequence of the transmission beam are configured to be the same or in one-to-one correspondence. For example, PRS resource1 corresponds to transmit beam1, PRS resource2 corresponds to transmit beam2, PRS resource3 corresponds to transmit beam3, and transmit beams 1,2, and 3 are adjacent, respectively;
optionally, when the positioning reference signal corresponding to the transmission beam adjacent to the first positioning reference signal transmission beam is at least one of the following, the transmission time sequence of the positioning reference signal is the same as or corresponds to the sequence of the transmission beam in one-to-one manner:
a positioning reference signal adjacent to a transmission time of the first positioning reference signal;
a positioning reference signal adjacent to a reception time of the first positioning reference signal.
For example, PRS resource1, PRS resource2, and PRS resource3 are transmitted sequentially, so that they correspond to transmission beams 1,2, and 3, respectively, and transmission beams 1,2, and 3 are adjacent to each other.
(IV) the contents of the first request information will be described below.
In this embodiment of the application, optionally, the first request information includes at least one of:
a transmit beam angle range;
second threshold information of the first measurement information;
specific positioning reference signal identification information;
a particular number of positioning reference signals;
transmit beam index information of a specific positioning reference signal;
transmit beam group information of a specific positioning reference signal;
priority information of a specific positioning reference signal, wherein the priority comprises a measurement and/or reporting priority;
the number of transmission beams to be measured and/or reported;
the number of adjacent transmit beams;
a type of transmit beam;
indication of adjacent beams.
In this embodiment of the present application, optionally, the number of the measured and/or reported target positioning reference signals is the same as the number of the specific positioning reference signals.
In this embodiment of the present application, optionally, the target positioning reference signal is determined by at least one of the following methods:
the target positioning reference signal is a positioning reference signal of which the transmitting beam angle information belongs to the transmitting beam angle range;
the target positioning reference signal is a positioning reference signal of which the first measurement information is greater than the second threshold information;
the target positioning reference signal is a positioning reference signal corresponding to specific positioning reference signal identification information;
the target positioning reference signal is a positioning reference signal with the same or adjacent transmitting beam index information of a specific positioning reference signal;
the target positioning reference signal is a positioning reference signal which is the same as a sending beam group of a specific positioning reference signal;
the target positioning reference signal is a positioning reference signal with the same transmission beam priority as a specific positioning reference signal.
In this embodiment, the update of the adjacent beam related configuration may also be dynamically indicated by the first request information.
In this embodiment of the application, optionally, the first request information is carried in at least one of the following messages:
LET location protocol (LPP) message RequestLocationInformation IE;
a media access control layer control element (MAC CE);
downlink Control Information (DCI);
NPRRa messages.
In this embodiment of the application, optionally, the positioning method further includes: the terminal receives first indication information issued by a network side, wherein the first indication information is used for indicating whether first measurement information of adjacent beams needs to be reported or not.
Optionally, the reporting of the first measurement information of the target positioning reference signal includes at least one of:
reporting first measurement information of a first positioning reference signal, and reporting first measurement information of a target positioning reference signal except the first positioning reference signal in an additional measurement;
reporting first measurement information of a first positioning reference signal and measurement reporting group information, wherein the measurement reporting group comprises identification information and first measurement information of a target positioning reference signal except the first positioning reference signal;
reporting first measurement information of a first positioning reference signal, and if the network side indicates that the first measurement information of adjacent beams needs to be reported, only reporting the first measurement information of a target positioning reference signal except the first positioning reference signal in an additional measurement;
reporting first measurement information of the first positioning reference signal and measurement reporting group information, wherein if the network side indicates that the first measurement information of the adjacent wave beam needs to be reported, the measurement reporting group comprises the first measurement information of the target positioning reference signal except the first positioning reference signal.
In this embodiment, optionally, the positioning method further includes: the terminal reports equipment capability information to a network side, wherein the capability information comprises at least one of the following:
whether measurement of a particular positioning reference signal is supported;
whether reporting of first measurement information of a specific positioning reference signal is supported;
whether the positioning reference signals corresponding to the adjacent transmitting beams are supported to be measured or not;
whether first measurement information of positioning reference signals corresponding to adjacent sending beams is supported to be reported or not;
whether the network side is supported to indicate the positioning reference signals corresponding to the specific and/or adjacent sending beams through the positioning reference signal identification information;
whether the network side is supported to indicate the positioning reference signals corresponding to the adjacent transmitting beams through the positioning reference signal transmitting time and/or receiving time;
whether the network side is supported to indicate the positioning reference signals corresponding to the specific and/or adjacent transmitting beams through the transmitting beam index information;
whether the network side is supported to indicate the positioning reference signals corresponding to specific and/or adjacent transmitting beams through the transmitting beam group information;
whether a network side is supported to indicate a positioning reference signal corresponding to a specific and/or adjacent sending beam through priority information or not, wherein the priority comprises a measurement and/or reporting priority;
means for indicating supported adjacent beams;
the number of adjacent beams that support measurement and/or reporting.
Whether antenna switching of positioning reference signals is supported;
the number of transmitting ports supporting antenna switching in positioning;
supporting the sending times of antenna switching in positioning;
and supporting the mapping mode of antenna switching in positioning.
Optionally, determining the target positioning reference signal includes: and if the number of the adjacent beams which are indicated to the terminal and need to be measured and/or reported is larger than the equipment capacity of the terminal, determining the measured and/or reported target positioning reference signal according to the priority information corresponding to the positioning reference signal resource.
In this embodiment, optionally, the positioning method further includes: the terminal receives second auxiliary information issued by a network side, and receives a positioning reference signal sent by the network side according to the second auxiliary information, wherein the second auxiliary information comprises at least one of the following information:
1) positioning a usage scenario (usage) of a reference signal;
the usage scenario is used for configuring a transmitting antenna port, a transmitting mode and/or a repeating mode of the corresponding positioning reference signal of the UE.
2) Positioning the number of sending ports corresponding to the reference signals;
3) the sending times corresponding to the positioning reference signals;
4) the corresponding relation between the number of sending ports of the positioning reference signal and the sending times;
5) a sending port and sending times of the positioning reference signals and a mapping mode of the positioning reference signals;
6) a configuration in which the positioning reference signal supports antenna switching;
7) the positioning reference signal supports a mapping mode of antenna switching.
The number of sending ports indicates the number of ports used for sending one positioning reference signal resource, the number of sending times indicates the number of positioning reference signal resources which can be sent at most at one positioning reference signal sending time, the sending is carried out on different symbols every time, and the sending ports used for sending each time cannot be completely the same.
Optionally, a guard interval Q symbol lengths need to be configured between two times of sending the positioning reference signal resources, where the positioning reference signal resources sent twice are transmitted in the same time slot, and Q is an integer greater than 0.
Optionally, the corresponding relationship between the number of transmission ports of the positioning reference signal and the number of transmission times, or the configuration that the positioning reference signal supports antenna switching includes: the number of the X sending ports and the number of the Y sending ports are respectively a positive integer which is more than or equal to 1. For example, 'tXrY' for XTYR, indicates that Y PRSs are transmitted on different symbols, each PRS being transmitted on X ports, and Y PRSs being transmitted on different ports.
Optionally, the sending port, the sending times, and the mapping manner of the positioning reference signal, or the mapping manner of the positioning reference signal supporting antenna switching includes at least one of the following:
m positioning reference signal resources in the same positioning reference signal resource set are mapped to each transmission;
mapping N positioning reference signal resources in the L positioning reference signal resource sets to each transmission;
b positioning reference signal resources in the same positioning reference signal resource set are repeatedly mapped to be sent for each time;
e positioning reference signal resources in D positioning reference signal resource sets in the C positioning reference signal resource sets are repeatedly mapped to be sent for each time;
the ports corresponding to the sending are different, and M, L, N, A, B, C, D and E are integers greater than 0.
Optionally, if the number of the positioning reference signal resources is equal to the number of sending times, each positioning reference signal resource corresponds to each sending;
if the number of the positioning reference signal resources is more than the sending times, the former Y positioning reference signal resources are sent for Y times, and the latter positioning reference signal resources are sent for Y times repeatedly every Y times;
and if the number of the positioning reference signal resources is less than the sending times, the sending times are the same as the number of the positioning reference signal resources.
In the embodiment of the application, if M positioning reference signal resources in the same positioning reference signal resource set are mapped to each transmission, the number of the positioning reference signal resources is M; if N positioning reference signal resources in the L positioning reference signal resource sets are mapped to each transmission, the number of the positioning reference signal resources is L x N; if B positioning reference signal resources of A positioning reference signal resources in the same positioning reference signal resource set are repeatedly mapped to each transmission, the number of the positioning reference signal resources is A × B; if E positioning reference signal resources of D positioning reference signal resources in the C positioning reference signal resource sets are repeatedly mapped to each transmission, the number of the positioning reference signal resources is C × D × E.
In this embodiment of the present application, optionally, the first measurement information of each target positioning reference signal corresponds to the same receiving beam, where the same receiving beam includes at least one of the following:
receiving a receiving beam corresponding to a Synchronization Signal Block (SSB);
receiving a receiving beam corresponding to a Physical Downlink Control Channel (PDCCH) or a Physical Downlink Shared Channel (PDSCH); for example, a receiving beam corresponding to the PDCCH/PDSCH is received last time;
receiving beams of reference signals with the maximum RSRP in all the target positioning reference signals;
receiving beams of reference signals with the maximum first path RSRP in all the target positioning reference signals;
a reception beam corresponding to a transmission beam for transmitting a channel Sounding Reference Signal (SRS); a reception beam corresponding to a transmission beam for which the SRS was transmitted last time, for example;
a reception beam corresponding to a transmission beam for transmitting a Physical Uplink Control Channel (PUCCH) or a Physical Uplink Shared Channel (PUSCH); for example, a reception beam corresponding to a transmission beam for transmitting the PUCCH or the PUSCH last time; .
In this embodiment, optionally, the reporting, by the terminal, of the receiving beam information corresponding to the first measurement information of each target positioning reference signal includes at least one of:
receiving a beam index;
terminal direction information;
terminal rotation information;
beam angle information is received.
Referring to fig. 8, an embodiment of the present application further provides a positioning method, including:
step 81: the LMF sends at least one of the following to the terminal:
first assistance information for configuring positioning reference signal beam related information;
the first request information is used for indicating a positioning reference signal or configuration update which a network side desires to report;
and/or
The LMF receives first auxiliary information sent by a base station, wherein the first auxiliary information is used for configuring information related to positioning reference signal beams.
In the embodiment of the application, through LMF configuration and/or a request, the terminal is instructed to measure and/or report the first measurement information of which target positioning reference signals are more favorable for improving the positioning accuracy, so that the UE can determine the better positioning reference signals and report the first measurement results of the positioning reference signals, and the AOD accuracy can be improved.
In this embodiment of the application, optionally, the first auxiliary information includes at least one of:
identifying information of a positioning reference signal resource;
a first list of positioning reference signal identification information, the first list of positioning reference signal identification information being identification information of positioning reference signals corresponding to beams adjacent to a positioning reference signal resource transmission beam;
a second list of positioning reference signal identification information, the second list of positioning reference signal identification information being identification information of positioning reference signals adjacent to a transmission beam;
positioning the sending beam angle information corresponding to the reference signal resource;
positioning the transmission beam index information corresponding to the reference signal resource;
positioning the sending beam group information corresponding to the reference signal resource;
positioning priority information corresponding to reference signal resources, wherein the priority comprises measurement and/or reporting priority;
a transmit beam angle range;
the number of transmission beams to be measured and/or reported;
the number of adjacent transmit beams;
transmitting a type of beam, the type of beam comprising at least one of: a horizontal transmission beam, a vertical transmission beam, a three-dimensional transmission beam;
indication mode of adjacent wave beam;
base station side antenna information;
second precoding matrix information.
The description of the first auxiliary information may refer to the description of the terminal side, and is not described one by one.
Optionally, the first request information includes at least one of:
a transmit beam angle range;
second threshold information of the first measurement information;
specific positioning reference signal identification information;
a particular number of positioning reference signals;
transmit beam index information of a specific positioning reference signal;
transmit beam group information of a specific positioning reference signal;
priority information of a specific positioning reference signal, wherein the priority comprises a measurement and/or reporting priority;
the number of transmission beams to be measured and/or reported;
the number of adjacent transmit beams;
a type of transmit beam;
adjacent beam indication.
Optionally, the first request information is carried in the following messages:
LPP message RequestLocationInformation IE;
NRPPa messages.
The description of the first request message may refer to the description of the terminal side, and is not described one by one.
In this embodiment of the application, optionally, the positioning method further includes: the network side equipment sends first indication information to a terminal, wherein the first indication information is used for indicating whether first measurement information of adjacent beams needs to be reported or not.
In this embodiment of the application, optionally, the positioning method further includes: the network side equipment sends second auxiliary information to the terminal, wherein the second auxiliary information comprises at least one of the following information:
positioning a use scene of a reference signal;
positioning the number of sending ports corresponding to the reference signals;
the sending times corresponding to the positioning reference signals;
the corresponding relation between the number of sending ports of the positioning reference signal and the number of sending times;
a sending port and sending times of the positioning reference signals and a mapping mode of the positioning reference signals;
a configuration in which the positioning reference signal supports antenna switching;
the positioning reference signal supports the mapping mode of antenna switching;
the number of sending ports indicates the number of ports used for sending one positioning reference signal resource, the number of sending times indicates the number of positioning reference signal resources which can be sent at most at one positioning reference signal sending time, the sending is carried out on different symbols every time, and the sending ports used for sending each time cannot be completely the same.
Optionally, a guard interval Q symbol lengths need to be configured between two times of sending the positioning reference signal resources, where the positioning reference signal resources sent twice are transmitted in the same time slot, and Q is an integer greater than 0.
In this embodiment of the application, optionally, the positioning method further includes: the LMF receives first measurement information of the target positioning reference signal reported by the terminal;
the first measurement information includes at least one of:
RSRP information;
phase information;
first path RSRP information;
first path phase information;
reference path RSRP information;
reference radial phase information;
RSRP difference information from the reference path;
phase difference information from a reference path;
RSRP difference information with the first path;
phase difference information from the first path;
first precoding matrix information.
Optionally, the first measurement information further includes at least one of:
RSTD information or RSTD difference information of the first path;
RSTD information or RSTD difference information of the reference path;
RSTD information or RSTD difference information of other paths;
TOA information or TOA difference information of the first path;
TOA information or TOA difference information of the reference path;
TOA information or TOA difference information of other paths;
Rx-Tx timing difference information or Rx-Tx timing difference information of head path receiving and sending time difference
The Rx-Tx timing difference information or Rx-Tx timing difference information of the reference path and the Rx-Tx timing difference information or Rx-Tx timing difference information of other paths;
wherein the other path is a path other than the head path or the reference path.
The description of the first measurement information may refer to the description of the terminal side, and is not described one by one.
Referring to fig. 9, an embodiment of the present application further provides a positioning method, including:
step 91: the base station sends at least one of the following to the terminal:
first assistance information for configuring positioning reference signal beam related information;
the first request information is used for indicating a positioning reference signal or configuration update which a network side desires to report;
and/or
And the base station sends first auxiliary information to the LMF, wherein the first auxiliary information is used for configuring information related to positioning reference signal beams.
In the embodiment of the application, through base station configuration and/or request, the terminal is instructed to measure and/or report the first measurement information of which target positioning reference signals are more favorable for improving the positioning accuracy, so that the UE can determine the better positioning reference signals and report the first measurement results of the positioning reference signals, and the AOD accuracy can be improved.
In this embodiment of the present application, optionally, the first auxiliary information includes at least one of the following:
identifying information of a positioning reference signal resource;
a first list of positioning reference signal identification information, the first list of positioning reference signal identification information being identification information of positioning reference signals corresponding to beams adjacent to a positioning reference signal resource transmission beam;
a second list of positioning reference signal identification information, the second list of positioning reference signal identification information being identification information of positioning reference signals adjacent to the transmission beam;
positioning the sending beam angle information corresponding to the reference signal resource;
positioning the transmission beam index information corresponding to the reference signal resource;
positioning the sending beam group information corresponding to the reference signal resource;
positioning priority information corresponding to reference signal resources, wherein the priority comprises a measurement priority and/or a reporting priority;
a transmit beam angle range;
the number of transmission beams to be measured and/or reported;
the number of adjacent transmit beams;
transmitting a type of beam, the type of beam comprising at least one of: a horizontal transmission beam, a vertical transmission beam, a three-dimensional transmission beam;
indication of adjacent beams;
base station side antenna information;
second precoding matrix information.
The description of the first auxiliary information may refer to the description of the terminal side, and is not described one by one.
Optionally, the first request information includes at least one of:
a transmit beam angle range;
second threshold information of the first measurement information;
specific positioning reference signal identification information;
a particular number of positioning reference signals;
transmit beam index information of a specific positioning reference signal;
transmit beam group information of a specific positioning reference signal;
priority information of a specific positioning reference signal, wherein the priority comprises a measurement and/or reporting priority;
the number of transmission beams to be measured and/or reported;
the number of adjacent transmit beams;
a type of transmit beam;
indication of adjacent beams.
Optionally, the first request information is carried in at least one of the following messages: an NRPPa message;
MAC CE;
DCI。
the description of the first request message may refer to the description of the terminal side, and is not described one by one. The following describes a positioning method according to an embodiment of the present application by way of example.
The first embodiment of the present application:
the first auxiliary information configured on the network side may be as follows:
Figure BDA0002980769770000351
Figure BDA0002980769770000361
or as follows:
Figure BDA0002980769770000362
Figure BDA0002980769770000371
the type of the first list of positioning reference signal identification information or the second list of positioning reference signal identification information comprises at least one of:
1) the horizontal direction positioning reference signal identification information list, such as { PRS resource ID1, PRS resource ID2, … … PRS resource IDn }, indicates the IDs of PRSs adjacent or superior to dl-PRS-sequence ID-r16 in the horizontal direction.
2) The vertical direction positioning reference signal identification information list, such as { PRS resource ID1, PRS resource ID2, … … PRS resource IDn }, indicates the IDs of PRSs that are adjacent or superior in the vertical direction to dl-PRS-sequence ID-r 16.
3) A three-dimensional direction positioning reference signal identification information list, such as { PRS resource ID1, PRS resource ID2, … … PRS resource IDn }, indicates the IDs of PRSs that are adjacent or superior in three-dimensional direction to dl-PRS-sequence ID-r 16.
The transmission beam index information includes at least one of:
1) the beam index is transmitted in the horizontal direction. If there are 8 beam angles in the horizontal direction, the beams are indexed in a certain order, for example, the beam index of the first beam in the horizontal direction is 1, the beam index of the second beam is 2, and the beam index of the eighth beam in … … is 8. If the beam index of the first positioning reference signal measured by the UE is 3, the PRS corresponding to two horizontal beam indexes (1 and 2) adjacent to 3 is an adjacent PRS in the horizontal direction or a better PRS.
2) The beam index is transmitted in the vertical direction. If there are 8 beam angles in the vertical direction, the beams are indexed in a certain order, for example, the beam index of the first beam in the vertical direction is 1, the beam index of the second beam is 2, and the beam index of the eighth beam is 8 in … …. If the beam index of the first positioning reference signal measured by the UE is 3, the PRS corresponding to two vertical beam indexes (1 and 2) adjacent to 3 is an adjacent PRS in the vertical direction or a better PRS.
3) The three-dimensional directions transmit the beam index. The first method is to transmit the beam index set in the horizontal direction-the vertical direction, and if there are 8 beam angles in the horizontal direction and 8 beam angles in the vertical direction, there are 64 three-dimensional beam angles. The beams are indexed in a certain order, for example, the beam index corresponding to the beam angle of the first beam in the vertical direction of the first beam angle in the horizontal direction is [1,1], [ the beam angle of the second beam in the vertical direction of the first beam angle in the horizontal direction is [1,2], the beam index of … … the beam index of the beam angle of the eighth beam in the vertical direction of the first beam angle in the horizontal direction is [1,8] … … the beam index of the beam of the fourth beam in the vertical direction of the fourth beam angle in the horizontal direction is [4,4] … … the beam index of the beam of the eighth beam in the vertical direction of the eighth beam angle in the horizontal direction is [8,8 ]. If the three-dimensional beam index of the first positioning reference signal measured by the UE is [3,4], the PRS corresponding to the four beam indexes ([2,4], [4,4], [3,2], [3,5]) adjacent to [3,4] is the adjacent PRS in the three-dimensional direction or the better PRS. The second method is to transmit beam indexes in three-dimensional directions, for example, 64 beams are numbered in a certain order, for example, the beam indexes are ordered from a small angle, and the beam indexes are transmitted in 64 three-dimensional directions, if the beam index of the first positioning reference signal measured by the UE is 12, then the PRS corresponding to two three-dimensional beam indexes (11 and 13) adjacent to 12 is the adjacent PRS in three-dimensional directions or the better PRS. The second embodiment of the application:
referring to fig. 10, in an embodiment, the target positioning reference signal is determined according to a predefined rule, which includes the following specific steps:
step 1: and carrying out terminal capability communication between the terminal and the LMF.
That is, the terminal reports the device capability information to the LMF, and the capability information may refer to the description in the above embodiments and is not described one by one.
Step 2: the terminal sends Request attribute data (auxiliary Request data) to the LMF;
and step 3: the LMF sends a Provide assistant data (auxiliary support data) to the terminal, wherein the Provide assistant data carries first auxiliary information;
and 4, step 4: a base station transmits a Positioning Reference Signal (PRS) to a terminal;
and 5: the terminal determines a target positioning reference signal according to a predefined rule, and determines and measures first measurement information of the target positioning reference signal.
Step 6: the LMF sends LPP Request Location Information (LTE positioning protocol Request position Information) to the terminal;
and 7: the terminal sends LPP provider Location Information (position Information provided by LTE positioning protocol) to the LMF, wherein the LPP provider Location Information carries first measurement Information of a target positioning reference signal.
And 8: and the LMF locates the terminal according to the received first measurement information of the target location reference signal.
Referring to fig. 11, in some embodiments, the method for determining the target-oriented reference signal according to the first request information sent by the network side includes the following specific steps:
step 1: and carrying out terminal capability communication between the terminal and the LMF.
That is, the terminal reports the device capability information to the LMF, and the capability information may refer to the description in the above embodiments and is not described one by one.
Step 2: the terminal sends Request attribute data (auxiliary Request data) to the LMF;
and step 3: the LMF sends a Provide assistant data (auxiliary support data) to the terminal, wherein the Provide assistant data carries first auxiliary information;
and 4, step 4: a base station transmits a Positioning Reference Signal (PRS) to a terminal;
and 5: the LMF sends LPP Request Location Information (LTE positioning protocol Request position Information) to the terminal, and the LPP Request Location Information carries first Request Information; the content of the first request message is described in the above embodiments, and is not described one by one.
Step 6: the terminal determines a target positioning reference signal according to the first request information, and determines and measures first measurement information of the target positioning reference signal.
And 7: the terminal sends LPP provider Location Information (position Information provided by LTE positioning protocol) to the LMF, wherein the LPP provider Location Information carries first measurement Information of the target positioning reference signal.
And step 8: and the LMF locates the terminal according to the received first measurement information of the target location reference signal.
Referring to fig. 12, in some embodiments, a network side dynamically indicates reporting of first measurement information of an adjacent or better PRS, which includes the following specific steps:
step 1: and carrying out terminal capability communication between the terminal and the LMF.
That is, the terminal reports the device capability information to the LMF, and the capability information may refer to the description in the above embodiments and is not described one by one.
And 2, step: the terminal sends Request attribute data (auxiliary Request data) to the LMF;
and step 3: the LMF sends a provider identifier data (auxiliary support data) to the terminal, wherein the provider identifier data carries first auxiliary information;
and 4, step 4: a base station transmits a Positioning Reference Signal (PRS) to a terminal;
and 5: the terminal determines a target positioning reference signal according to the first auxiliary information, and determines and measures first measurement information of the target positioning reference signal;
and 6: the terminal sends LPP provider Location Information (position Information provided by LTE positioning protocol) to the LMF, wherein the LPP provider Location Information carries first measurement Information of a target positioning reference signal.
And 7: the LMF determines first request information according to the received first measurement information;
and 8: a base station or an LMF sends first request information to a terminal;
and step 9: the terminal re-determines the target positioning reference signal according to the first request information, and determines and measures first measurement information of the target positioning reference signal;
step 10: and the terminal reports the first measurement information of the target positioning reference signal which is measured again to the LMF.
The third embodiment of the application:
in an embodiment of the present application, a reporting manner of the first measurement information of the target positioning reference signal includes at least one of the following manners:
mode 1: reporting first measurement information of a first positioning reference signal, and reporting first measurement information of a target positioning reference signal except the first positioning reference signal in an additional measurement element, for example, reporting first measurement information of an adjacent PRS.
The following bold part is first measurement information of the first positioning reference signal, and the horizontal line part is first measurement information of the target positioning reference signal other than the first positioning reference signal.
Figure BDA0002980769770000401
Figure BDA0002980769770000411
Mode 3: reporting first measurement information of the first positioning reference signal and measurement reporting group information, wherein the measurement reporting group includes identification information of a target positioning reference signal and the first measurement information except the first positioning reference signal, for example, the first measurement information of an adjacent PRS.
As follows:
Figure BDA0002980769770000412
Figure BDA0002980769770000421
Figure BDA0002980769770000431
mode 3: reporting first measurement information of the first positioning reference signal, and if the network side indicates that the first measurement information of the adjacent beams needs to be reported, only reporting the first measurement information of the target positioning reference signal except the first positioning reference signal in the additional measurement element.
As follows:
Figure BDA0002980769770000432
Figure BDA0002980769770000441
mode 4: reporting first measurement information of the first positioning reference signal and measurement reporting group information, wherein if the network side indicates that the first measurement information of the adjacent wave beam needs to be reported, the measurement reporting group comprises the first measurement information of the target positioning reference signal except the first positioning reference signal.
As follows:
Figure BDA0002980769770000442
Figure BDA0002980769770000451
the fourth embodiment of the application:
in the embodiment of the present application, measurement and reporting of adjacent precoding matrices are explained.
UE-based positioning:
1) the LMF or the base station is configured to a UE precoding matrix pool (comprising a broadband precoding matrix pool and/or a narrowband precoding matrix pool); and/or
2) The LMF or the base station configures parameters required for the UE to generate the precoding matrix pool, such as antenna panel configuration information (antenna panel spacing, number, oversampling factor, etc.);
3) the UE obtains a precoding matrix pool and angle information corresponding to each precoding matrix through at least one of the two modes; and the UE searches each pre-coding matrix in the pre-coding matrix pool according to the measured channel, and determines the angle corresponding to the pre-coding matrix with the maximum channel response as the measured AOD angle.
4) And the UE carries out position calculation according to the AOD angle.
5) Optionally, the UE reports the location information and the precoding matrix information (precoding matrix index and/or corresponding angle).
UE-assisted positioning:
1) the LMF or the base station is configured to a UE precoding matrix pool (comprising a broadband precoding matrix pool and/or a narrowband precoding matrix pool); and/or
2) The LMF or the base station configures parameters required for the UE to generate the precoding matrix pool, such as antenna panel configuration information (antenna panel spacing, number, oversampling factor, etc.);
3) the UE obtains the precoding matrix pool and the angle information corresponding to each precoding matrix through at least one of the two modes; and the UE searches each pre-coding matrix in the pre-coding matrix pool according to the measured channel, and determines the angle corresponding to the pre-coding matrix with the maximum channel response as the measured AOD angle.
4) The UE reports the first measurement information, which comprises at least one of the following:
determining a precoding matrix index that maximizes a channel response;
a channel response (RSRP) corresponding to the determined precoding matrix which maximizes the channel response;
a first path channel response (first path RSRP) corresponding to the determined precoding matrix which enables the channel response to be maximum;
a neighboring precoding matrix index;
channel responses (RSRP) corresponding to adjacent precoding matrices;
first path channel responses (first path RSRP) corresponding to adjacent precoding matrixes;
5) and the LMF calculates the AOD angle according to the first measurement information reported by the UE and performs position calculation.
The fifth embodiment of the application:
in the embodiment of the present application, the definition of the first path and the related measurement amount thereof will be described.
1. The definition of the head path includes one of:
1) the first path is a first detected path obtained by measuring a PRS resource or an SRS resource, namely the path with the minimum distance between the time of receiving the path and the starting time of a subframe i, wherein the subframe i is a subframe of receiving the PRS resource or the SRS resource;
2) the first path is a path which measures a PRS resource or an SRS resource and is detected first, that is, the distance between the time when the path is received and the starting time of a symbol i is the smallest, wherein a subframe i is the symbol when the PRS resource or the SRS resource is received;
3) the first path is a path with the minimum time delay among a plurality of PRS resources or SRS resources, wherein the first detected path under each PRS resource or SRS resource is the path with the minimum distance between the time of receiving the path and the starting time of a subframe i, and the subframe i is the subframe of receiving the PRS resource or SRS resource, and the path with the minimum time delay among the first detected paths is the first path of the PRS resource or SRS resource;
4) the first path is a path with the minimum time delay among a plurality of PRS resources or SRS resources, wherein the first detected path under each PRS resource or SRS resource is the path with the minimum distance between the time of receiving the path and the starting time of a symbol i, the symbol i is a subframe of receiving the PRS resource or SRS resource, and the path with the minimum time delay among the first detected paths is the first path of the PRS resource or SRS resource;
2. the definition of the primary path RSRP includes one of:
1) the amplitude value of the CIR response corresponding to the first path;
2) receiving energy/power of a channel corresponding to the first path;
3) a linear average of the power of resource elements of DL PRS reference signals carrying RSRP measurement configurations over the considered measurement frequency bandwidth over the primary path.
3. The definition of the head path phase comprises one of the following:
1) phase value of CIR response corresponding to head path
2) A linear average of the phase values of the resource elements of the DL PRS reference signals carrying RSRP measurement configurations over the head path within the considered measurement frequency bandwidth.
3) The phase value of the DL PRS reference signal carrying the RSRP measurement configuration on the head path of each resource element within the considered measurement frequency bandwidth.
4. The definition of the head path angle includes one of the following:
1) the angle of arrival/angle of departure of the primary path is at a horizontal and/or vertical angle with respect to a reference direction, wherein the reference direction may be the Global Correlation System (GCS) or the Local Correlation System (LCS);
5. the definition of the first path RSTD includes one of:
1) a downlink subframe relative time difference between a Transmission Point (TP) j and a reference TP i is defined as TSubframe Rxj-TSubframe Rxi, wherein the downlink subframe j and the downlink subframe i are respectively a subframe of a first path of a received positioning reference signal;
2) a downlink symbol relative time difference between a Transmission Point (TP) j and a reference TP i is defined as TSubframeRxj-TSubframeRxi, wherein the downlink symbol j and the downlink symbol i are respectively symbols of a first path of a received positioning reference signal;
6. the definition of the first path TOA includes one of:
1) a relative time difference of a start of a subframe i received by a Receiving Point (RP) j with respect to a reference time, wherein the subframe i is a subframe of a head path in which a positioning reference signal is received;
2) a relative time difference of the start of a symbol i received by a Reception Point (RP) j with respect to a reference time, where the symbol i is a symbol of a head path in which the positioning reference signal is received.
It should be noted that, in the positioning method provided in the embodiment of the present application, the execution main body may be a positioning apparatus, or a control module used for executing the positioning method in the positioning apparatus. In the embodiment of the present application, a positioning device executing a positioning method is taken as an example to describe the positioning device provided in the embodiment of the present application.
Referring to fig. 13, an embodiment of the present application further provides a positioning apparatus 130, including:
a determining module 131, configured to determine a target positioning reference signal;
a processing module 132, configured to determine first measurement information of the target positioning reference signal, and/or report the first measurement information of the target positioning reference signal;
wherein the target positioning reference signal is determined according to at least one of the following modes:
predefining rules;
first auxiliary information sent by a network side, wherein the first auxiliary information is used for configuring information related to positioning reference signal beams;
the first request information is used for indicating a positioning reference signal or configuration update which the network side desires to report.
Optionally, the first measurement information includes at least one of:
RSRP information;
phase information;
first path RSRP information;
first path phase information;
reference path RSRP information;
reference radial phase information;
RSRP difference information from the reference path;
phase difference information from a reference path;
RSRP difference information with the first path;
phase difference information from the first path;
first precoding matrix information.
Optionally, the first precoding matrix information is used to determine angle information, and includes at least one of:
index of precoding matrix with maximum RSRP;
the index of the precoding matrix with the maximum first path RSRP;
index of the bandwidth precoding matrix with maximum RSRP;
index of the bandwidth precoding matrix with the maximum first path RSRP;
the index of the narrowband precoding matrix with the maximum RSRP;
the index of the narrowband precoding matrix with the maximum first path RSRP;
a precoding matrix index;
the RSRP corresponding to the precoding matrix index;
a first path RSRP corresponding to a precoding matrix index;
an adjacent precoding matrix index;
RSRP corresponding to adjacent precoding matrix indexes;
a first path RSRP corresponding to the adjacent precoding matrix indexes;
a wideband precoding matrix index;
the RSRP corresponding to the broadband precoding matrix index;
a first path RSRP corresponding to the broadband precoding matrix index;
an adjacent wideband precoding matrix index;
RSRP corresponding to the adjacent broadband precoding matrix indexes;
a first path RSRP corresponding to an adjacent broadband precoding matrix index;
a narrowband precoding matrix index;
the RSRP corresponding to the narrowband precoding matrix index;
a first path RSRP corresponding to the narrowband precoding matrix index;
an adjacent narrowband precoding matrix index;
RSRP corresponding to the adjacent narrowband precoding matrix indexes;
and the first path RSRP corresponding to the adjacent narrowband precoding matrix indexes.
Optionally, the adjacent precoding matrix is indicated by at least one of the following manners:
indicated by a precoding matrix index;
the corresponding angle indication is given by the precoding matrix.
Optionally, the first measurement information further includes at least one of:
reference signal time difference RSTD information or RSTD difference information of a first path;
RSTD information or RSTD difference information of the reference path;
RSTD information or RSTD difference information of other paths;
TOA information or TOA difference information of the arrival time of the first path;
TOA information or TOA difference information of the reference path;
TOA information or TOA difference information of other paths;
receiving and sending time difference Rx-Tx timing difference information or Rx-Tx timing difference information of head path
Rx-Tx timing difference information or Rx-Tx timing difference information of reference path
Rx-Tx timing difference information or Rx-Tx timing difference information of other paths;
wherein the other path is a path other than the head path or the reference path.
Optionally, the first auxiliary information includes at least one of:
identifying information of a positioning reference signal resource;
a first list of positioning reference signal identification information, the first list of positioning reference signal identification information being identification information of positioning reference signals corresponding to beams adjacent to a positioning reference signal resource transmission beam;
a second list of positioning reference signal identification information, the second list of positioning reference signal identification information being identification information of positioning reference signals adjacent to the transmission beam;
positioning the sending beam angle information corresponding to the reference signal resource;
positioning the transmission beam index information corresponding to the reference signal resource;
positioning the sending beam group information corresponding to the reference signal resource;
positioning priority information corresponding to reference signal resources, wherein the priority comprises a measurement priority and/or a reporting priority;
a transmit beam angle range;
the number of transmission beams to be measured and/or reported;
the number of adjacent transmit beams;
transmitting a type of beam, the type of beam comprising at least one of: a horizontal transmission beam, a vertical transmission beam, a three-dimensional transmission beam;
indication of adjacent beams;
base station side antenna information;
second precoding matrix information.
Optionally, the base station side antenna information further includes at least one of the following:
panel information;
antenna information within the panel;
antenna spacing within the panel;
terminal device angle information;
antenna virtualization information;
calibration information;
beam angle error information;
phase error information.
Optionally, the second precoding matrix information includes at least one of:
a narrowband precoding matrix pool;
a wideband precoding matrix pool;
oversampling parameters;
and (4) DFT coefficients.
Optionally, the first list of the positioning reference signal identification information includes at least one of:
a first list of horizontal direction positioning reference signal identification information;
a first list of vertical positioning reference signal identification information;
a first list of three-dimensional directional positioning reference signal identification information.
The type of the second list of positioning reference signal identification information comprises at least one of:
a second list of horizontal direction positioning reference signal identification information;
a second list of vertical direction positioning reference signal identification information;
a second list of three-dimensional directional positioning reference signal identification information.
Optionally, the information of the angle of the transmission beam includes at least one of:
a transmit beam horizontal angle;
transmitting a beam vertical angle;
angle error information;
angle confidence information;
the beam width information is transmitted.
Optionally, the type of the transmission beam index information includes at least one of:
transmitting a beam index in a horizontal direction;
transmitting a beam index in a vertical direction;
the three-dimensional directions transmit beam indexes.
Optionally, the information of the transmit beam group includes at least one of:
transmitting beam group identification information;
the number of beams in the beam group is transmitted.
Optionally, the type of the transmission beam group identification information includes at least one of:
transmitting beam group identification information in a horizontal direction;
transmitting beam group identification information in a vertical direction;
the beam group identification information is transmitted in the three-dimensional direction.
Optionally, the sending beam group information further includes: and second positioning reference signal identification information configured by the network side and used for indicating a positioning reference signal corresponding to a central beam of one transmission beam group.
Optionally, the indication manner of the sending beam group information includes at least one of the following:
a list mode indication;
and (4) directly indicating.
Optionally, the indication manner of the adjacent beam includes at least one of:
indicating by a positioning reference signal ID;
indicating by the transmission time sequence of the positioning reference signals;
indicating by a reception time sequence of the positioning reference signals;
indicating by a first list of positioning reference signal identification information;
indicating by a second list of positioning reference signal identification information;
indicating by transmitting beam angle information;
indicating by transmitting beam index information;
the indication is made by transmitting beam group information.
Optionally, the target positioning reference signal is a positioning reference signal in a second list of the positioning reference signal identification information.
Optionally, the predefined rule includes at least one of:
the target positioning reference signal comprises a first positioning reference signal and a positioning reference signal corresponding to a transmission beam adjacent to the first positioning reference signal transmission beam;
the target positioning reference signal comprises a first positioning reference signal and a positioning reference signal belonging to the same resource set, the same sending beam group or the same priority as the first positioning reference signal, and the priority comprises a measurement priority and/or a reporting priority;
the target positioning reference signal comprises a positioning reference signal for which first measurement information is greater than first threshold information, wherein the first threshold information is predefined;
wherein the first positioning reference signal comprises at least one of:
positioning reference signals with the maximum RSRP;
a positioning reference signal with the maximum first path RSRP;
a positioning reference signal with the maximum reference path RSRP;
optionally, the number of the target positioning reference signals is determined according to at least one of the following:
determining the number of the transmission beams which need to be measured and/or reported and are indicated in the first auxiliary information or the first request information;
determining according to the number of adjacent transmission beams indicated in the first assistance information or first request information;
determining according to the number of beams in the transmission beam group indicated in the first assistance information or the first request information;
determining according to the type of the transmission beam indicated in the first auxiliary information or the first request information;
determining according to a specific number of positioning reference signals indicated in the first request information;
according to the number of predefined transmission beams;
according to a predefined number of adjacent transmit beams.
Optionally, the positioning reference signal corresponding to the transmission beam adjacent to the first positioning reference signal transmission beam includes at least one of:
a positioning reference signal adjacent to the first positioning reference signal identification information;
a positioning reference signal adjacent to a transmission time of the first positioning reference signal;
a positioning reference signal adjacent to a reception time of the first positioning reference signal;
a positioning reference signal adjacent to the transmission beam angle information of the first positioning reference signal;
positioning reference signals adjacent to beam index information of the first positioning reference signal;
a positioning reference signal identical to the transmission beam group information of the first positioning reference signal;
the positioning reference signal of the first positioning reference signal identifies a positioning reference signal in a first list of information.
Optionally, when the positioning reference signal corresponding to the transmission beam adjacent to the first positioning reference signal transmission beam is a positioning reference signal adjacent to the first positioning reference signal identification information, the identification information sequence of the positioning reference signal and the sequence of the transmission beam are configured to be the same or in one-to-one correspondence.
Optionally, when the positioning reference signal corresponding to the transmission beam adjacent to the first positioning reference signal transmission beam is at least one of the following, the transmission time sequence of the positioning reference signal is the same as or corresponds to the sequence of the transmission beam in one-to-one manner:
a positioning reference signal adjacent to a transmission time of the first positioning reference signal;
a positioning reference signal adjacent to a reception time of the first positioning reference signal.
Optionally, the first request information includes at least one of:
a transmit beam angle range;
second threshold information of the first measurement information;
specific positioning reference signal identification information;
a particular number of positioning reference signals;
transmit beam index information of a specific positioning reference signal;
transmit beam group information of a specific positioning reference signal;
priority information of a specific positioning reference signal, wherein the priority comprises a measurement and/or reporting priority;
the number of transmission beams to be measured and/or reported;
the number of adjacent transmit beams;
a type of transmit beam;
indication of adjacent beams.
Optionally, the number of the measured and/or reported target positioning reference signals is the same as the number of the specific positioning reference signals.
Optionally, the determining module 131 determines the target positioning reference signal by at least one of:
the target positioning reference signal is a positioning reference signal of which the transmitting beam angle information belongs to the transmitting beam angle range;
the target positioning reference signal is a positioning reference signal of which the first measurement information is greater than the second threshold information;
the target positioning reference signal is a positioning reference signal corresponding to specific positioning reference signal identification information;
the target positioning reference signal is a positioning reference signal with the same transmission beam index information of a specific positioning reference signal;
the target positioning reference signal is a positioning reference signal which is the same as a transmission beam group of a specific positioning reference signal;
the target positioning reference signal is a positioning reference signal with the same transmission beam priority as a specific positioning reference signal.
Optionally, the first request information is carried in at least one of the following messages:
LPP message RequestLocationInformation IE;
MAC CE;
DCI;
NPRRa messages.
Optionally, the positioning device 130 further includes:
a first receiving module, configured to receive first indication information issued by a network side, where the first indication information is used to indicate whether first measurement information of an adjacent beam needs to be reported.
Optionally, the reporting of the first measurement information of the target positioning reference signal includes at least one of:
reporting first measurement information of a first positioning reference signal, and reporting first measurement information of a target positioning reference signal except the first positioning reference signal in an additional measurement;
reporting first measurement information of a first positioning reference signal and measurement reporting group information, wherein the measurement reporting group comprises identification information and first measurement information of a target positioning reference signal except the first positioning reference signal;
reporting first measurement information of a first positioning reference signal, and if the network side indicates that the first measurement information of adjacent beams needs to be reported, only reporting the first measurement information of a target positioning reference signal except the first positioning reference signal in an additional measurement;
reporting first measurement information of the first positioning reference signal and measurement reporting group information, wherein if the network side indicates that the first measurement information of the adjacent wave beam needs to be reported, the measurement reporting group comprises the first measurement information of the target positioning reference signal except the first positioning reference signal.
Optionally, the positioning device 130 further includes:
a first reporting module, configured to report device capability information to a network side, where the capability information includes at least one of the following:
whether or not measurement of a specific positioning reference signal is supported;
whether reporting of first measurement information of a specific positioning reference signal is supported;
whether the positioning reference signals corresponding to the adjacent transmitting beams are supported to be measured or not;
whether first measurement information of positioning reference signals corresponding to adjacent sending beams is supported to be reported or not;
whether the network side is supported to indicate the positioning reference signals corresponding to the specific and/or adjacent sending beams through the positioning reference signal identification information;
whether the network side is supported to indicate the positioning reference signals corresponding to the adjacent transmitting beams through the positioning reference signal transmitting time and/or receiving time;
whether the network side is supported to indicate the positioning reference signals corresponding to the specific and/or adjacent transmitting beams through the transmitting beam index information;
whether the network side is supported to indicate the positioning reference signals corresponding to specific and/or adjacent transmitting beams through the transmitting beam group information;
whether a network side is supported to indicate a positioning reference signal corresponding to a specific and/or adjacent transmission beam through priority information is determined, wherein the priority comprises a measurement and/or reporting priority;
means for indicating supported adjacent beams;
the number of adjacent beams that support measurement and/or reporting.
Whether antenna switching of positioning reference signals is supported;
the number of transmitting ports supporting antenna switching in positioning;
supporting the sending times of antenna switching in positioning;
and supporting the mapping mode of antenna switching in positioning.
Optionally, determining the target positioning reference signal includes: and if the number of the adjacent beams which are indicated to the terminal and need to be measured and/or reported is larger than the equipment capacity of the terminal, determining the measured and/or reported target positioning reference signal according to the priority information corresponding to the positioning reference signal resource.
Optionally, the positioning device 130 further includes:
a second receiving module, configured to receive second auxiliary information sent by a network side, and receive, according to the second auxiliary information, a positioning reference signal sent by the network side, where the second auxiliary information includes at least one of the following:
positioning a use scene of a reference signal;
the corresponding relation between the number of sending ports of the positioning reference signal and the sending times;
a sending port and sending times of the positioning reference signals and a mapping mode of the positioning reference signals;
a configuration in which the positioning reference signal supports antenna switching;
a mapping mode that the positioning reference signal supports antenna switching;
the number of sending ports indicates the number of ports used for sending one positioning reference signal resource, the number of sending times indicates the number of positioning reference signal resources which can be sent at most at one positioning reference signal sending time, the sending is carried out on different symbols every time, and the sending ports used for sending each time cannot be completely the same.
Optionally, a guard interval Q symbol lengths need to be configured between two times of sending the positioning reference signal resources, where the positioning reference signal resources sent twice are transmitted in the same time slot, and Q is an integer greater than 0. Optionally, the corresponding relationship between the number of transmission ports of the positioning reference signal and the number of transmission times, or the configuration that the positioning reference signal supports antenna switching includes: x number of transmit ports and Y transmissions.
Optionally, the sending port, the sending times, and the mapping manner of the positioning reference signal, or the mapping manner of the positioning reference signal supporting antenna switching includes at least one of the following:
mapping M positioning reference signal resources in the same positioning reference signal resource set to each transmission;
mapping N positioning reference signal resources in the L positioning reference signal resource sets to each transmission;
b positioning reference signal resources of A positioning reference signal resources in the same positioning reference signal resource set are repeatedly mapped to be sent for each time;
e positioning reference signal resources in D positioning reference signal resource sets in the C positioning reference signal resource sets are repeatedly mapped to be sent for each time;
the ports corresponding to the sending are different, and M, L, N, A, B, C, D and E are integers greater than 0.
Alternatively to this, the first and second parts may,
if the number of the positioning reference signal resources is equal to the sending times, each positioning reference signal resource is corresponding to each sending;
if the number of the positioning reference signal resources is more than the sending times, the former Y positioning reference signal resources are sent for Y times, and the latter positioning reference signal resources are sent for Y times repeatedly every Y times;
and if the number of the positioning reference signal resources is less than the number of sending times, the number of sending times is the same as the number of the positioning reference signal resources.
Optionally, the first measurement information of each target positioning reference signal corresponds to the same receiving beam, where the same receiving beam includes at least one of:
receiving a receiving beam corresponding to the synchronous signal block SSB;
receiving a receiving beam corresponding to the PDCCH or the PDSCH;
receiving beams of reference signals with the maximum RSRP in all the target positioning reference signals;
receiving beams of reference signals with the maximum first path RSRP in all target positioning reference signals;
a reception beam corresponding to a transmission beam for transmitting a reference signal for channel sounding SRS;
a reception beam corresponding to a transmission beam for transmitting the PUCCH or the PUSCH.
Optionally, the positioning apparatus 130 further includes:
a second reporting module, configured to report receive beam information corresponding to the first measurement information of each target positioning reference signal, where the report includes at least one of the following:
receiving a beam index;
terminal direction information;
terminal rotation information;
beam angle information is received.
The positioning device in the embodiment of the present application may be a device, a device or an electronic device having an operating system, or may be a component, an integrated circuit, or a chip in a terminal. The device or the electronic equipment can be a mobile terminal or a non-mobile terminal. By way of example, the mobile terminal may include, but is not limited to, the above-listed type of terminal 11, and the non-mobile terminal may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine, a kiosk, or the like, and the embodiments of the present application are not limited in particular.
The positioning apparatus provided in the embodiment of the present application can implement each process implemented in the method embodiment of fig. 5, and achieve the same technical effect, and is not described here again to avoid repetition.
Referring to fig. 14, an embodiment of the present application further provides a positioning apparatus 140, including:
a first sending module 141, configured to send at least one of the following to the terminal:
first assistance information for configuring positioning reference signal beam related information;
the first request information is used for indicating a positioning reference signal or configuration update which is expected to be reported by a network side;
and/or
A receiving module 142, configured to receive first auxiliary information sent by a base station, where the first auxiliary information is used to configure information related to a positioning reference signal beam.
Optionally, the first auxiliary information includes at least one of:
identifying information of a positioning reference signal resource;
a first list of positioning reference signal identification information, the first list of positioning reference signal identification information being identification information of positioning reference signals corresponding to beams adjacent to a positioning reference signal resource transmission beam;
a second list of positioning reference signal identification information, the second list of positioning reference signal identification information being identification information of positioning reference signals adjacent to the transmission beam;
positioning the sending beam angle information corresponding to the reference signal resource;
positioning the transmission beam index information corresponding to the reference signal resource;
positioning the sending beam group information corresponding to the reference signal resource;
positioning priority information corresponding to reference signal resources, wherein the priority comprises a measurement priority and/or a reporting priority;
a transmit beam angle range;
the number of transmission beams to be measured and/or reported;
the number of adjacent transmit beams;
transmitting a type of beam, the type of beam comprising at least one of: a horizontal transmission beam, a vertical transmission beam, a three-dimensional transmission beam;
indication of adjacent beams;
base station side antenna information;
second precoding matrix information.
Optionally, the first request information includes at least one of:
a transmit beam angle range;
second threshold information of the first measurement information;
specific positioning reference signal identification information;
a particular number of positioning reference signals;
transmit beam index information of a specific positioning reference signal;
transmit beam group information of a specific positioning reference signal;
priority information of a specific positioning reference signal, wherein the priority comprises a measurement and/or reporting priority;
the number of transmission beams to be measured and/or reported;
the number of adjacent transmit beams;
a type of transmit beam;
adjacent beam indication.
Optionally, the first request information is carried in at least one of the following messages:
LPP message RequestLocationInformation IE;
NRPPa messages.
Optionally, the network side device further includes:
a second sending module, configured to send first indication information to the terminal, where the first indication information is used to indicate whether first measurement information of an adjacent beam needs to be reported.
Optionally, the network side device further includes:
a third sending module, configured to send second auxiliary information to the terminal, where the second auxiliary information includes at least one of:
positioning a use scene of a reference signal;
the corresponding relation between the number of sending ports of the positioning reference signal and the sending times;
a sending port and sending times of the positioning reference signals and a mapping mode of the positioning reference signals;
a configuration in which the positioning reference signal supports antenna switching;
the positioning reference signal supports the mapping mode of antenna switching;
the number of sending ports indicates the number of ports used for sending one positioning reference signal resource, the number of sending times indicates the number of positioning reference signal resources which can be sent at most at one positioning reference signal sending time, the sending is carried out on different symbols every time, and the sending ports used for sending each time cannot be completely the same.
Optionally, a guard interval Q symbol lengths need to be configured between two times of sending the positioning reference signal resources, where the positioning reference signal resources sent twice are transmitted in the same time slot, and Q is an integer greater than 0.
Optionally, the network side device further includes:
a receiving module, configured to receive first measurement information of the target positioning reference signal reported by the terminal;
the first measurement information includes at least one of:
RSRP information;
phase information;
first path RSRP information;
first path phase information;
reference path RSRP information;
reference radial phase information;
RSRP difference information from the reference path;
phase difference information from a reference path;
RSRP difference information with the first path;
phase difference information from the first path;
first precoding matrix information.
Optionally, the first measurement information further includes at least one of the following:
reference signal time difference RSTD information or RSTD difference information of a first path;
RSTD information or RSTD difference information of the reference path;
RSTD information or RSTD difference information of other paths;
TOA information or TOA difference information of the arrival time of the first path;
TOA information or TOA difference information of the reference path;
TOA information or TOA difference information of other paths;
receiving and sending time difference Rx-Tx timing difference information or Rx-Tx timing difference information of head path
The Rx-Tx timing difference information or Rx-Tx timing difference information of the reference path and the Rx-Tx timing difference information or Rx-Tx timing difference information of other paths;
wherein the other path is a path other than the head path or the reference path.
The positioning apparatus provided in the embodiment of the present application can implement each process implemented in the method embodiment of fig. 8, and achieve the same technical effect, and is not described here again to avoid repetition.
Referring to fig. 15, an embodiment of the present application further provides a positioning apparatus 150, including:
a first sending module 151, configured to send at least one of the following to the terminal:
first assistance information for configuring positioning reference signal beam related information;
the first request information is used for indicating a positioning reference signal or configuration update which a network side desires to report;
and/or
A second sending module 152, configured to send first assistance information to the LMF, where the first assistance information is used to configure information related to a positioning reference signal beam.
Optionally, the first auxiliary information includes at least one of:
identifying information of a positioning reference signal resource;
a first list of positioning reference signal identification information, the first list of positioning reference signal identification information being identification information of positioning reference signals corresponding to beams adjacent to a positioning reference signal resource transmission beam;
a second list of positioning reference signal identification information, the second list of positioning reference signal identification information being identification information of positioning reference signals adjacent to the transmission beam;
positioning the sending beam angle information corresponding to the reference signal resource;
positioning the transmission beam index information corresponding to the reference signal resource;
positioning the sending beam group information corresponding to the reference signal resource;
positioning priority information corresponding to reference signal resources, wherein the priority comprises a measurement priority and/or a reporting priority;
a transmit beam angle range;
the number of transmission beams to be measured and/or reported;
the number of adjacent transmit beams;
transmitting a type of beam, the type of beam comprising at least one of: a horizontal transmission beam, a vertical transmission beam, a three-dimensional transmission beam;
indication of adjacent beams;
base station side antenna information;
second precoding matrix information.
Optionally, the first request information includes at least one of:
a transmit beam angle range;
second threshold information of the first measurement information;
specific positioning reference signal identification information;
a particular number of positioning reference signals;
transmit beam index information of a specific positioning reference signal;
transmit beam group information of a specific positioning reference signal;
priority information of a specific positioning reference signal, wherein the priority comprises a measurement and/or reporting priority;
the number of transmission beams to be measured and/or reported;
the number of adjacent transmit beams;
a type of transmit beam;
indication of adjacent beams.
Optionally, the first request information is carried in at least one of the following messages:
an NPRRa message;
MAC CE;
DCI。
the positioning apparatus provided in the embodiment of the present application can implement each process implemented in the method embodiment of fig. 9, and achieve the same technical effect, and is not described here again to avoid repetition.
As shown in fig. 16, the embodiment of the present application further provides a communication device 160, which includes a processor 161, a memory 162, and a program or instruction stored in the memory 162 and executable on the processor 161, for example, when the communication device 160 is a terminal, the program or instruction is executed by the processor 161 to implement the processes of the embodiment of the positioning method executed by the terminal, and the same technical effect can be achieved. When the communication device 160 is an LMF, the program or instructions, when executed by the processor 161, implement the processes of the embodiments of the positioning method executed by the LMF and achieve the same technical effects. When the communication device 160 is a base station, the program or the instructions are executed by the processor 161 to implement the processes of the positioning method embodiment executed by the base station, and the same technical effects can be achieved.
The embodiment of the application also provides a terminal, which comprises a processor and a communication interface, wherein the processor is used for determining the target positioning reference signal; determining first measurement information of the target positioning reference signal, and/or reporting the first measurement information of the target positioning reference signal, wherein the first measurement information is used for determining terminal position information; wherein the target positioning reference signal is determined according to at least one of the following modes: pre-defining rules; first auxiliary information sent by a network side, wherein the first auxiliary information is used for configuring information related to positioning reference signal beams; the first request information is used for indicating a positioning reference signal or configuration update which the network side desires to report. The terminal embodiment corresponds to the terminal-side method embodiment, and all implementation processes and implementation manners of the method embodiment can be applied to the terminal embodiment and can achieve the same technical effect.
Specifically, fig. 17 is a schematic diagram of a hardware structure of a terminal for implementing the embodiment of the present application. The terminal 170 includes, but is not limited to: at least some of the radio frequency unit 171, the network module 172, the audio output unit 173, the input unit 174, the sensor 175, the display unit 176, the user input unit 177, the interface unit 178, the memory 179, and the processor 1710.
Those skilled in the art will appreciate that the terminal 170 may further include a power source (e.g., a battery) for supplying power to various components, and the power source may be logically connected to the processor 1710 via a power management system, so as to manage charging, discharging, and power consumption management functions via the power management system. The terminal structure shown in fig. 17 does not constitute a limitation of the terminal, and the terminal may include more or less components than those shown, or may combine some components, or may be arranged differently, and thus, the description thereof is omitted.
It should be understood that, in the embodiment of the present application, the input Unit 174 may include a Graphics Processing Unit (GPU) 1741 and a microphone 1742, and the Graphics processor 1741 processes image data of a still picture or a video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 176 may include a display panel 1761, and the display panel 1761 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 177 includes a touch panel 1771 and other input devices 1772. A touch panel 1771, also referred to as a touch screen. The touch panel 1771 may include two portions of a touch detection device and a touch controller. Other input devices 1772 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 further detail herein.
In this embodiment, the radio frequency unit 171 receives downlink data from a network side device and then processes the downlink data to the processor 1710; in addition, the uplink data is sent to the network side equipment. Generally, the radio frequency unit 171 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 179 may be used to store software programs or instructions as well as various data. The memory 179 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, etc.) required for at least one function, and the like. In addition, the Memory 179 may include a high-speed random access Memory, and may further include a nonvolatile Memory, wherein the nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (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 1710 may include one or more processing units; optionally, the processor 1710 may integrate an application processor, which mainly handles operating systems, user interfaces, and applications or instructions, and a modem processor, which mainly handles wireless communications, such as a baseband processor. It is to be appreciated that the modem processor described above may not be integrated into processor 1710.
The processor 1710 is configured to determine a target positioning reference signal; determining first measurement information of the target positioning reference signal, and/or reporting the first measurement information of the target positioning reference signal, wherein the first measurement information is used for determining terminal position information;
wherein the target positioning reference signal is determined according to at least one of the following modes:
pre-defining rules;
first auxiliary information sent by a network side, wherein the first auxiliary information is used for configuring information related to positioning reference signal beams;
the first request information is used for indicating a positioning reference signal or configuration update which the network side desires to report.
In the embodiment of the present application, the terminal is instructed to measure and/or report the first measurement information of which target positioning reference signals through the predefined rule, the network side configuration and/or the network side request, which is more favorable for improving the positioning accuracy, so that the UE can determine the better positioning reference signals and report the first measurement results of the positioning reference signals, thereby improving the accuracy of the AOD.
Optionally, the first measurement information includes at least one of:
RSRP information;
phase information;
first path RSRP information;
first path phase information;
reference path RSRP information;
reference radial phase information;
RSRP difference information from the reference path;
phase difference information from a reference path;
RSRP difference information with the first path;
phase difference information from the first path;
first precoding matrix information.
Optionally, the first precoding matrix information is used to determine angle information, and includes at least one of:
index of precoding matrix with maximum RSRP;
the index of the precoding matrix with the maximum first path RSRP;
index of the bandwidth precoding matrix with maximum RSRP;
index of the bandwidth precoding matrix with the maximum first path RSRP;
the index of the narrowband precoding matrix with the maximum RSRP;
the index of the narrowband precoding matrix with the maximum first path RSRP;
a precoding matrix index;
RSRP corresponding to the precoding matrix index;
a first path RSRP corresponding to a precoding matrix index;
an adjacent precoding matrix index;
RSRP corresponding to adjacent precoding matrix indexes;
a first path RSRP corresponding to an adjacent precoding matrix index;
a wideband precoding matrix index;
the RSRP corresponding to the broadband precoding matrix index;
a first path RSRP corresponding to the broadband precoding matrix index;
an adjacent wideband precoding matrix index;
RSRP corresponding to the adjacent broadband precoding matrix indexes;
a first path RSRP corresponding to an adjacent broadband precoding matrix index;
a narrowband precoding matrix index;
the RSRP corresponding to the narrowband precoding matrix index;
a first path RSRP corresponding to the narrowband precoding matrix index;
an adjacent narrowband precoding matrix index;
RSRP corresponding to the adjacent narrowband precoding matrix indexes;
and the first path RSRP corresponding to the adjacent narrowband precoding matrix indexes.
Optionally, the adjacent precoding matrix is indicated by at least one of the following manners:
indicated by a precoding matrix index;
the corresponding angle indication is given by the precoding matrix.
Optionally, the first measurement information further includes at least one of:
reference signal time difference RSTD information or RSTD difference information of a first path;
RSTD information or RSTD difference information of the reference path;
RSTD information or RSTD difference information of other paths;
TOA information or TOA difference information of the arrival time of the first path;
TOA information or TOA difference information of the reference path;
TOA information or TOA difference information of other paths;
Rx-Tx timing difference information or Rx-Tx timing difference information of head path receiving and sending time difference
The Rx-Tx timing difference information or Rx-Tx timing difference information of the reference path and the Rx-Tx timing difference information or the Rx-Tx timing difference information of other paths;
wherein the other path is a path other than the head path or the reference path.
Optionally, the first auxiliary information includes at least one of:
identifying information of a positioning reference signal resource;
a first list of positioning reference signal identification information, the first list of positioning reference signal identification information being identification information of positioning reference signals corresponding to beams adjacent to a positioning reference signal resource transmission beam;
a second list of positioning reference signal identification information, the second list of positioning reference signal identification information being identification information of positioning reference signals adjacent to a transmission beam;
positioning the sending beam angle information corresponding to the reference signal resource;
positioning the transmission beam index information corresponding to the reference signal resource;
positioning the sending beam group information corresponding to the reference signal resource;
positioning priority information corresponding to reference signal resources, wherein the priority comprises measurement and/or reporting priority;
a transmit beam angle range;
the number of transmission beams to be measured and/or reported;
the number of adjacent transmit beams;
transmitting a type of beam, the type of beam comprising at least one of: a horizontal transmission beam, a vertical transmission beam, a three-dimensional transmission beam;
indication of adjacent beams;
base station side antenna information;
second precoding matrix information.
Optionally, the base station side antenna information further includes at least one of the following:
panel information;
antenna information within the panel;
antenna spacing within the panel;
terminal device angle information;
antenna virtualization information;
calibration information;
beam angle error information;
phase error information.
Optionally, the second precoding matrix information includes at least one of:
a narrowband pre-coding matrix pool;
a wideband precoding matrix pool;
oversampling parameters;
the DFT coefficients.
Optionally, the type of the first list of the positioning reference signal identification information includes at least one of:
a first list of horizontal direction positioning reference signal identification information;
a first list of vertical direction positioning reference signal identification information;
a first list of three-dimensional direction positioning reference signal identification information;
the type of the second list of positioning reference signal identification information comprises at least one of:
a second list of horizontal direction positioning reference signal identification information;
a second list of vertical direction positioning reference signal identification information;
a second list of three-dimensional directional positioning reference signal identification information.
Optionally, the information of the angle of the transmission beam includes at least one of:
a transmit beam horizontal angle;
transmitting a beam vertical angle;
angle error information;
angle confidence information;
the beam width information is transmitted.
Optionally, the type of the transmission beam index information includes at least one of:
transmitting a beam index in a horizontal direction;
transmitting a beam index in a vertical direction;
the beam index is transmitted in three dimensions.
Optionally, the information of the transmit beam group includes at least one of:
transmitting beam group identification information;
the number of beams in the beam group is transmitted.
Optionally, the type of the transmission beam group identification information includes at least one of:
transmitting beam group identification information in a horizontal direction;
transmitting beam group identification information in a vertical direction;
the three-dimensional direction transmits beam group identification information.
Optionally, the sending beam group information further includes: and second positioning reference signal identification information configured by the network side and used for indicating a positioning reference signal corresponding to a central beam of one transmission beam group.
Optionally, the indication manner of the sending beam group information includes at least one of the following:
a list mode indication;
and (4) directly indicating.
Optionally, the indication manner of the adjacent beam includes at least one of the following:
indicating by a positioning reference signal ID;
indicating by the transmission time sequence of the positioning reference signals;
indicating by a reception time sequence of the positioning reference signals;
indicating by a first list of positioning reference signal identification information;
indicating by a second list of positioning reference signal identification information;
indicating by transmitting beam angle information;
indicating by transmitting beam index information;
the indication is made by transmitting beam group information.
Optionally, the target positioning reference signal is a positioning reference signal in a second list of the positioning reference signal identification information.
Optionally, the predefined rule includes at least one of:
the target positioning reference signal comprises a first positioning reference signal and a positioning reference signal corresponding to a transmission beam adjacent to the first positioning reference signal transmission beam;
the target positioning reference signal comprises a first positioning reference signal and a positioning reference signal belonging to the same resource set, the same sending beam group or the same priority as the first positioning reference signal, and the priority comprises a measurement priority and/or a reporting priority;
the target positioning reference signal comprises a positioning reference signal for which first measurement information is greater than first threshold information, wherein the first threshold information is predefined;
wherein the first positioning reference signal comprises at least one of:
positioning reference signals with the maximum RSRP;
a positioning reference signal with the maximum first path RSRP;
a positioning reference signal with the maximum reference path RSRP;
optionally, the number of the target positioning reference signals is determined according to at least one of the following:
determining the number of the transmission beams which need to be measured and/or reported according to the first auxiliary information or the first request information;
determining according to the number of adjacent transmission beams indicated in the first assistance information or first request information;
determining according to the number of beams in the transmission beam group indicated in the first assistance information or the first request information;
determining according to the type of the transmission beam indicated in the first auxiliary information or the first request information;
determining according to a specific number of positioning reference signals indicated in the first request information;
according to the number of predefined transmission beams;
according to a predefined number of adjacent transmit beams.
Optionally, the positioning reference signal corresponding to the transmission beam adjacent to the first positioning reference signal transmission beam includes at least one of:
a positioning reference signal adjacent to the first positioning reference signal identification information;
a positioning reference signal adjacent to a transmission time of the first positioning reference signal;
a positioning reference signal adjacent to a reception time of the first positioning reference signal;
a positioning reference signal adjacent to the transmission beam angle information of the first positioning reference signal;
positioning reference signals adjacent to beam index information of the first positioning reference signal;
a positioning reference signal identical to the transmission beam group information of the first positioning reference signal;
the positioning reference signal of the first positioning reference signal identifies a positioning reference signal in a first list of information.
Optionally, when the positioning reference signal corresponding to the transmission beam adjacent to the first positioning reference signal transmission beam is a positioning reference signal adjacent to the first positioning reference signal identification information, the identification information sequence of the positioning reference signal and the sequence of the transmission beam are configured to be the same or in one-to-one correspondence.
Optionally, when the positioning reference signal corresponding to the transmission beam adjacent to the first positioning reference signal transmission beam is at least one of the following, the transmission time sequence of the positioning reference signal is the same as or corresponds to the sequence of the transmission beam in one-to-one manner:
a positioning reference signal adjacent to a transmission time of the first positioning reference signal;
a positioning reference signal adjacent to a reception time of the first positioning reference signal.
Optionally, the first request information includes at least one of:
a transmit beam angle range;
second threshold information of the first measurement information;
specific positioning reference signal identification information;
a particular number of positioning reference signals;
transmitting beam index information of a specific positioning reference signal;
transmit beam group information of a specific positioning reference signal;
priority information of a specific positioning reference signal, wherein the priority comprises a measurement and/or reporting priority;
the number of transmission beams to be measured and/or reported;
the number of adjacent transmit beams;
a type of transmit beam;
indication of adjacent beams.
Optionally, the number of the measured and/or reported target positioning reference signals is the same as the number of the specific positioning reference signals.
Optionally, the processor 1710 is further configured to determine the target positioning reference signal by at least one of:
the target positioning reference signal is a positioning reference signal of which the transmitting beam angle information belongs to the transmitting beam angle range;
the target positioning reference signal is a positioning reference signal of which the first measurement information is greater than the second threshold information;
the target positioning reference signal is a positioning reference signal corresponding to specific positioning reference signal identification information;
the target positioning reference signal is a positioning reference signal with the same transmission beam index information of a specific positioning reference signal;
the target positioning reference signal is a positioning reference signal which is the same as a transmission beam group of a specific positioning reference signal;
the target positioning reference signal is a positioning reference signal with the same transmission beam priority as a specific positioning reference signal.
Optionally, the first request information is carried in at least one of the following messages:
LPP message RequestLocationInformation IE;
MAC CE;
DCI;
NPRRa messages.
Optionally, the radio frequency unit 171 is configured to receive first indication information issued by a network side, where the first indication information is used to indicate whether first measurement information of an adjacent beam needs to be reported.
Optionally, the reporting of the first measurement information of the target positioning reference signal includes at least one of:
reporting first measurement information of a first positioning reference signal, and reporting first measurement information of a target positioning reference signal except the first positioning reference signal in an additional measurement;
reporting first measurement information of a first positioning reference signal and measurement reporting group information, wherein the measurement reporting group comprises identification information and first measurement information of a target positioning reference signal except the first positioning reference signal;
reporting first measurement information of a first positioning reference signal, and if the network side indicates that the first measurement information of adjacent beams needs to be reported, only reporting the first measurement information of a target positioning reference signal except the first positioning reference signal in an additional measurement;
reporting first measurement information of the first positioning reference signal and measurement reporting group information, wherein if the network side indicates that the first measurement information of the adjacent wave beam needs to be reported, the measurement reporting group comprises the first measurement information of the target positioning reference signal except the first positioning reference signal.
Optionally, the radio frequency unit 171 is configured to report device capability information to a network side, where the capability information includes at least one of the following:
whether measurement of a particular positioning reference signal is supported;
whether reporting of first measurement information of a specific positioning reference signal is supported;
whether the positioning reference signals corresponding to the adjacent transmitting beams are supported to be measured or not;
whether reporting of first measurement information of positioning reference signals corresponding to adjacent transmission beams is supported;
whether the network side is supported to indicate the positioning reference signals corresponding to the specific and/or adjacent sending beams through the positioning reference signal identification information;
whether the network side is supported to indicate the positioning reference signals corresponding to the adjacent transmitting beams through the positioning reference signal transmitting time and/or receiving time;
whether the network side is supported to indicate the positioning reference signals corresponding to the specific and/or adjacent transmitting beams through the transmitting beam index information;
whether the network side is supported to indicate the positioning reference signals corresponding to specific and/or adjacent transmitting beams through the transmitting beam group information;
whether a network side is supported to indicate a positioning reference signal corresponding to a specific and/or adjacent transmission beam through priority information is determined, wherein the priority comprises a measurement and/or reporting priority;
means for indicating supported adjacent beams;
the number of adjacent beams that support measurement and/or reporting.
Whether antenna switching of positioning reference signals is supported;
the number of transmitting ports supporting antenna switching in positioning;
supporting the sending times of antenna switching in positioning;
and supporting a mapping mode of antenna switching in positioning.
Optionally, determining the target positioning reference signal includes: and if the number of the adjacent beams which are indicated to the terminal and need to be measured and/or reported is larger than the equipment capacity of the terminal, determining the measured and/or reported target positioning reference signal according to the priority information corresponding to the positioning reference signal resource.
Optionally, the radio frequency unit 171 is configured to receive second auxiliary information sent by a network side, and receive a positioning reference signal sent by the network side according to the second auxiliary information, where the second auxiliary information includes at least one of:
positioning a use scene of a reference signal;
the corresponding relation between the number of sending ports of the positioning reference signal and the sending times;
a sending port and sending times of the positioning reference signals and a mapping mode of the positioning reference signals;
a configuration in which the positioning reference signal supports antenna switching;
the positioning reference signal supports the mapping mode of antenna switching;
the number of sending ports indicates the number of ports used for sending one positioning reference signal resource, the number of sending times indicates the number of positioning reference signal resources which can be sent at most at one positioning reference signal sending opportunity, the sending ports used for sending each time cannot be completely the same, and the sending ports used for sending each time are sent on different symbols each time.
Optionally, a guard interval Q symbol lengths need to be configured between two times of sending the positioning reference signal resources, where the positioning reference signal resources sent twice are transmitted in the same time slot, and Q is an integer greater than 0.
Optionally, the corresponding relationship between the number of sending ports of the positioning reference signal and the number of sending times, or the configuration that the positioning reference signal supports antenna switching includes: x number of transmit ports and Y transmissions.
Optionally, the sending port, the sending times of the positioning reference signal, and the mapping manner of the positioning reference signal, or the mapping manner of the positioning reference signal supporting antenna switching includes at least one of the following:
mapping M positioning reference signal resources in the same positioning reference signal resource set to each transmission;
mapping N positioning reference signal resources in the L positioning reference signal resource sets to each transmission;
b positioning reference signal resources in the same positioning reference signal resource set are repeatedly mapped to be sent for each time;
e positioning reference signal resources in D positioning reference signal resource sets in the C positioning reference signal resource sets are repeatedly mapped to be sent for each time;
the ports corresponding to the sending are different, and M, L, N, A, B, C, D and E are integers greater than 0.
Optionally, if the number of the positioning reference signal resources is equal to the number of sending times, each positioning reference signal resource corresponds to each sending;
if the number of the positioning reference signal resources is more than the sending times, the former Y positioning reference signal resources are sent for Y times, and the latter positioning reference signal resources are sent for Y times repeatedly every Y times;
and if the number of the positioning reference signal resources is less than the sending times, the sending times are the same as the number of the positioning reference signal resources.
Optionally, the first measurement information of each target positioning reference signal corresponds to the same receiving beam, where the same receiving beam includes at least one of:
receiving a receiving beam corresponding to the synchronization signal block SSB;
receiving a receiving beam corresponding to the PDCCH or the PDSCH;
receiving beams of reference signals with the maximum RSRP in all the target positioning reference signals;
receiving beams of reference signals with the maximum first path RSRP in all target positioning reference signals;
a reception beam corresponding to a transmission beam for transmitting a reference signal for channel sounding SRS;
a reception beam corresponding to a transmission beam for transmitting the PUCCH or the PUSCH.
Optionally, the radio frequency unit 171 is further configured to report receiving beam information corresponding to the first measurement information of each target positioning reference signal, where the receiving beam information includes at least one of:
receiving a beam index;
terminal direction information;
terminal rotation information;
beam angle information is received.
An LMF is further provided in an embodiment of the present application, and includes a processor and a communication interface, where the communication interface is configured to send, to a terminal, at least one of: first assistance information for configuring positioning reference signal beam related information; the first request information is used for indicating a positioning reference signal or configuration update which is expected to be reported by a network side; and/or receiving first auxiliary information sent by a base station, wherein the first auxiliary information is used for configuring information related to positioning reference signal beams. The embodiment of the LMF corresponds to the embodiment of the positioning method performed by the LMF, and all implementation processes and implementation manners of the embodiment of the positioning method performed by the LMF are applicable to the embodiment of the LMF and can achieve the same technical effects.
An embodiment of the present application further provides a base station, including a processor and a communication interface, where the communication interface is configured to send at least one of the following to a terminal: first assistance information for configuring positioning reference signal beam related information; the first request information is used for indicating a positioning reference signal or configuration update which is expected to be reported by a network side; and/or first auxiliary information sent to the LMF, wherein the first auxiliary information is used for configuring information related to positioning reference signal beams. The embodiment of the base station corresponds to the embodiment of the positioning method performed by the base station, and all implementation processes and implementation manners of the embodiment of the positioning method performed by the base station can be applied to the embodiment of the base station, and the same technical effects can be achieved.
Specifically, the embodiment of the application further provides a network side device. As shown in fig. 18, the network device 180 includes: an antenna 181, a radio frequency device 182, and a baseband device 183. The antenna 181 is connected to a radio frequency device 182. In the uplink direction, the rf device 182 receives information via the antenna 181 and sends the received information to the baseband device 183 for processing. In the downlink direction, the baseband device 183 processes information to be transmitted and transmits the processed information to the rf device 182, and the rf device 182 processes the received information and transmits the processed information through the antenna 181.
The above band processing means may be located in the baseband apparatus 183, and the method performed by the network side device in the above embodiment may be implemented in the baseband apparatus 183, where the baseband apparatus 183 includes a processor 184 and a memory 185.
The baseband device 183 may comprise, for example, at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 18, wherein one of the chips, for example, the processor 184, is connected to the memory 185 to call up the program in the memory 185 to execute the network device operations shown in the above method embodiments.
The baseband device 183 may further include a network interface 186 for exchanging information with the radio frequency device 182, such as a Common Public Radio Interface (CPRI).
Specifically, the network side device according to the embodiment of the present invention further includes: the instructions or programs stored in the memory 185 and capable of being executed on the processor 184, and the processor 184 calls the instructions or programs in the memory 185 to execute the method executed by each module shown in fig. 9, and achieve the same technical effect, and are not described herein in detail to avoid repetition.
The 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 foregoing positioning method embodiment, 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 program or an instruction to implement each process of the foregoing positioning method embodiment, and can achieve the same technical effect, and for avoiding repetition, details are not repeated here.
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 computer 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 (54)

1. A method of positioning, comprising:
the terminal determines a target positioning reference signal;
the terminal determines first measurement information of the target positioning reference signal and/or reports the first measurement information of the target positioning reference signal, wherein the first measurement information is used for determining terminal position information;
wherein the target positioning reference signal is determined according to at least one of the following modes:
predefining rules;
first auxiliary information sent by a network side, wherein the first auxiliary information is used for configuring information related to positioning reference signal beams;
the first request information is used for indicating a positioning reference signal or configuration update which the network side desires to report.
2. The positioning method according to claim 1, wherein the first measurement information comprises at least one of:
reference Signal Received Power (RSRP) information;
phase information;
first path RSRP information;
first path phase information;
reference path RSRP information;
reference radial phase information;
RSRP difference information from the reference path;
phase difference information from a reference path;
RSRP difference information with the first path;
phase difference information from the first path;
first precoding matrix information.
3. The positioning method according to claim 2, wherein the first precoding matrix information is used for determining angle information, and comprises at least one of:
index of precoding matrix with maximum RSRP;
the index of the precoding matrix with the maximum first path RSRP;
index of the bandwidth precoding matrix with maximum RSRP;
index of the bandwidth precoding matrix with the maximum first path RSRP;
the index of the narrowband precoding matrix with the maximum RSRP;
the index of the narrowband precoding matrix with the maximum first path RSRP;
a precoding matrix index;
the RSRP corresponding to the precoding matrix index;
a first path RSRP corresponding to a precoding matrix index;
an adjacent precoding matrix index;
RSRP corresponding to adjacent precoding matrix indexes;
a first path RSRP corresponding to an adjacent precoding matrix index;
a wideband precoding matrix index;
the RSRP corresponding to the broadband precoding matrix index;
a first path RSRP corresponding to the broadband precoding matrix index;
an adjacent wideband precoding matrix index;
RSRP corresponding to the adjacent broadband precoding matrix indexes;
a first path RSRP corresponding to an adjacent broadband precoding matrix index;
a narrowband precoding matrix index;
the RSRP corresponding to the narrowband precoding matrix index;
a first path RSRP corresponding to the narrowband precoding matrix index;
an adjacent narrowband precoding matrix index;
RSRP corresponding to the adjacent narrowband precoding matrix indexes;
and the first path RSRP corresponding to the adjacent narrowband precoding matrix indexes.
4. The positioning method according to claim 3, wherein the neighboring precoding matrix is indicated by at least one of:
indicated by a precoding matrix index;
the angle corresponding to the precoding matrix is used for indicating.
5. The positioning method of claim 2, wherein the first measurement information further comprises at least one of:
reference signal time difference RSTD information or RSTD difference information of a first path;
RSTD information or RSTD difference information of the reference path;
RSTD information or RSTD difference information of other paths;
TOA information or TOA difference information of the arrival time of the first path;
TOA information or TOA difference information of the reference path;
TOA information or TOA difference information of other paths;
receiving and sending time difference Rx-Tx timing difference information or Rx-Tx timing difference information of head path
Rx-Tx timing difference information or Rx-Tx timing difference information of reference path
Rx-Tx timing difference information or Rx-Tx timing difference information of other paths;
wherein the other path is a path other than the first path or the reference path.
6. The positioning method according to claim 1, wherein the first assistance information comprises at least one of:
identifying information of a positioning reference signal resource;
a first list of positioning reference signal identification information, the first list of positioning reference signal identification information being identification information of positioning reference signals corresponding to beams adjacent to a positioning reference signal resource transmission beam;
a second list of positioning reference signal identification information, the second list of positioning reference signal identification information being identification information of positioning reference signals adjacent to a transmission beam;
positioning the sending beam angle information corresponding to the reference signal resource;
sending beam index information corresponding to the positioning reference signal resource;
positioning the sending beam group information corresponding to the reference signal resource;
positioning priority information corresponding to reference signal resources, wherein the priority comprises measurement and/or reporting priority;
a transmit beam angle range;
the number of transmission beams to be measured and/or reported;
the number of adjacent transmit beams;
transmitting a type of beam, the type of beam comprising at least one of: a horizontal transmission beam, a vertical transmission beam, a three-dimensional transmission beam;
indication of adjacent beams;
base station side antenna information;
second precoding matrix information.
7. The positioning method according to claim 6, wherein the base station side antenna information further comprises at least one of:
panel information;
antenna information within the panel;
antenna spacing within the panel;
terminal angle information;
antenna virtualization information;
calibration information;
beam angle error information;
phase error information.
8. The positioning method of claim 6, wherein the second precoding matrix information comprises at least one of:
a narrowband precoding matrix pool;
a wideband precoding matrix pool;
oversampling parameters;
discrete fourier transform DFT coefficients.
9. The positioning method according to claim 6,
the type of the first list of positioning reference signal identification information comprises at least one of:
a first list of horizontal direction positioning reference signal identification information;
a first list of vertical direction positioning reference signal identification information;
a first list of three-dimensional directional positioning reference signal identification information;
the type of the second list of positioning reference signal identification information comprises at least one of:
a second list of horizontal direction positioning reference signal identification information;
a second list of vertical direction positioning reference signal identification information;
a second list of three-dimensional directional positioning reference signal identification information.
10. The position determination method of claim 6, wherein the transmission beam angle information comprises at least one of:
a transmit beam horizontal angle;
transmitting a beam vertical angle;
angle error information;
angle confidence information;
the beam width information is transmitted.
11. The positioning method according to claim 6, wherein the type of the transmission beam index information comprises at least one of:
transmitting a beam index in a horizontal direction;
transmitting a beam index in a vertical direction;
the beam index is transmitted in three dimensions.
12. The position determination method of claim 6, wherein the transmission beam group information comprises at least one of:
transmitting beam group identification information;
the number of beams in the beam group is transmitted.
13. The positioning method of claim 12, wherein the type of the transmission beam group identification information comprises at least one of:
transmitting beam group identification information in a horizontal direction;
transmitting beam group identification information in a vertical direction;
the beam group identification information is transmitted in the three-dimensional direction.
14. The position determination method of claim 12, wherein the transmitting beam group information further comprises: and second positioning reference signal identification information configured by the network side and used for indicating a positioning reference signal corresponding to a central beam of one transmission beam group.
15. The position determination method of claim 12, wherein the indication manner of the transmission beam group information comprises at least one of:
a list mode indication;
and (4) directly indicating.
16. The method according to claim 6, wherein the indication manner of the adjacent beam comprises at least one of:
indicating by a positioning reference signal ID;
indicating by the transmission time sequence of the positioning reference signals;
indicating by a reception time sequence of the positioning reference signals;
indicating by a first list of positioning reference signal identification information;
indicating by a second list of positioning reference signal identification information;
indicating by transmitting beam angle information;
indicating by transmitting beam index information;
the indication is made by transmitting beam group information.
17. The method according to claim 16, wherein the target positioning reference signal is a positioning reference signal in a second list of positioning reference signal identification information.
18. The positioning method according to claim 1, wherein the predefined rule comprises at least one of:
the target positioning reference signal comprises a first positioning reference signal and a positioning reference signal corresponding to a transmission beam adjacent to the first positioning reference signal transmission beam;
the target positioning reference signal comprises a first positioning reference signal and a positioning reference signal belonging to the same resource set, the same sending beam group or the same priority as the first positioning reference signal, and the priority comprises a measurement priority and/or a reporting priority;
the target positioning reference signal comprises a positioning reference signal for which first measurement information is greater than first threshold information, wherein the first threshold information is predefined;
wherein the first positioning reference signal comprises at least one of:
positioning reference signals with the maximum RSRP;
a positioning reference signal with the maximum first path RSRP;
and the reference path RSRP is the maximum positioning reference signal.
19. The positioning method according to claim 1, wherein the number of target positioning reference signals is determined according to at least one of:
determining the number of the transmission beams which need to be measured and/or reported and are indicated in the first auxiliary information or the first request information;
determining according to the number of adjacent transmission beams indicated in the first assistance information or first request information;
determining according to the number of beams in the transmission beam group indicated in the first assistance information or the first request information;
determining according to the type of the transmission beam indicated in the first auxiliary information or the first request information;
determining according to a specific number of positioning reference signals indicated in the first request information;
according to the number of predefined transmission beams;
according to a predefined number of adjacent transmit beams.
20. The positioning method according to claim 18, wherein the positioning reference signals corresponding to the transmission beams adjacent to the first positioning reference signal transmission beam comprise at least one of:
a positioning reference signal adjacent to the first positioning reference signal identification information;
a positioning reference signal adjacent to a transmission time of the first positioning reference signal;
a positioning reference signal adjacent to a reception time of the first positioning reference signal;
positioning reference signals adjacent to the transmission beam angle information of the first positioning reference signal;
positioning reference signals adjacent to beam index information of the first positioning reference signal;
a positioning reference signal identical to the transmission beam group information of the first positioning reference signal;
the positioning reference signal of the first positioning reference signal identifies a positioning reference signal in a first list of information.
21. The method according to claim 20, wherein when the positioning reference signal corresponding to the transmission beam adjacent to the first positioning reference signal transmission beam is a positioning reference signal adjacent to the first positioning reference signal identification information, an identification information order of positioning reference signals and an order of transmission beams are configured to be the same or in one-to-one correspondence.
22. The method according to claim 20, wherein when the positioning reference signal corresponding to the transmission beam adjacent to the first positioning reference signal transmission beam is at least one of the following, the transmission time sequence of the positioning reference signal and the sequence of the transmission beam are the same or in one-to-one correspondence:
a positioning reference signal adjacent to a transmission time of the first positioning reference signal;
a positioning reference signal adjacent to a reception time of the first positioning reference signal.
23. The positioning method according to claim 1, wherein the first request information comprises at least one of:
a transmit beam angle range;
second threshold information of the first measurement information;
specific positioning reference signal identification information;
a particular number of positioning reference signals;
transmit beam index information of a specific positioning reference signal;
transmit beam group information of a specific positioning reference signal;
priority information of a specific positioning reference signal, wherein the priority comprises a measurement and/or reporting priority;
the number of transmission beams to be measured and/or reported;
a number of adjacent transmit beams;
a type of transmit beam;
indication of adjacent beams.
24. The method according to claim 23, wherein the target positioning reference signal is determined by at least one of:
the target positioning reference signal is a positioning reference signal of which the transmitting beam angle information belongs to the transmitting beam angle range;
the target positioning reference signal is a positioning reference signal of which the first measurement information is greater than the second threshold information;
the target positioning reference signal is a positioning reference signal corresponding to specific positioning reference signal identification information;
the target positioning reference signal is a positioning reference signal with the same or adjacent transmitting beam index information of a specific positioning reference signal;
the target positioning reference signal is a positioning reference signal which is the same as a transmission beam group of a specific positioning reference signal;
the target positioning reference signal is a positioning reference signal with the same transmission beam priority as a specific positioning reference signal.
25. The positioning method according to claim 1, wherein the first request information is carried in at least one of the following messages:
LET location protocol LPP message RequestLocationInformation IE;
an NR positioning protocol NRPPa message;
a media access control layer control unit MAC CE;
and downlink control information DCI.
26. The positioning method according to claim 1, further comprising:
the terminal receives first indication information issued by a network side, wherein the first indication information is used for indicating whether first measurement information of adjacent beams needs to be reported or not.
27. The method according to claim 1 or 26, wherein reporting the first measurement information of the target positioning reference signal comprises at least one of:
reporting first measurement information of the first positioning reference signal, and reporting the first measurement information of the target positioning reference signal except the first positioning reference signal in an additional measurement;
reporting first measurement information of a first positioning reference signal and measurement reporting group information, wherein the measurement reporting group comprises identification information and first measurement information of a target positioning reference signal except the first positioning reference signal;
reporting first measurement information of a first positioning reference signal, and if the network side indicates that the first measurement information of adjacent beams needs to be reported, only reporting the first measurement information of a target positioning reference signal except the first positioning reference signal in an additional measurement;
reporting first measurement information of the first positioning reference signal and measurement reporting group information, wherein if the network side indicates that the first measurement information of the adjacent wave beam needs to be reported, the measurement reporting group comprises the first measurement information of the target positioning reference signal except the first positioning reference signal.
28. The positioning method according to claim 1, further comprising:
the terminal reports equipment capability information to a network side, wherein the capability information comprises at least one of the following information:
whether measurement of a particular positioning reference signal is supported;
whether reporting of first measurement information of a specific positioning reference signal is supported;
whether the positioning reference signals corresponding to the adjacent transmitting beams are supported to be measured or not;
whether first measurement information of positioning reference signals corresponding to adjacent sending beams is supported to be reported or not;
whether the network side is supported to indicate the positioning reference signals corresponding to the specific and/or adjacent sending beams through the positioning reference signal identification information;
whether the network side is supported to indicate the positioning reference signals corresponding to the adjacent transmitting beams through the positioning reference signal transmitting time and/or receiving time;
whether the network side is supported to indicate the positioning reference signals corresponding to the specific and/or adjacent transmitting beams through the transmitting beam index information;
whether the network side is supported to indicate the positioning reference signals corresponding to specific and/or adjacent transmitting beams through transmitting beam group information or not;
whether a network side is supported to indicate a positioning reference signal corresponding to a specific and/or adjacent sending beam through priority information or not, wherein the priority comprises a measurement and/or reporting priority;
means for indicating supported adjacent beams;
the number of adjacent beams supporting measurement and/or reporting;
whether antenna switching of positioning reference signals is supported;
the number of transmitting ports supporting antenna switching in positioning;
supporting the sending times of antenna switching in positioning;
and supporting the mapping mode of antenna switching in positioning.
29. The positioning method of claim 28, wherein determining a target positioning reference signal comprises:
and if the number of the adjacent beams which are indicated to the terminal and need to be measured and/or reported is larger than the equipment capacity of the terminal, determining the measured and/or reported target positioning reference signal according to the priority information corresponding to the positioning reference signal resource.
30. The positioning method according to claim 1, further comprising:
the terminal receives second auxiliary information issued by a network side, and receives a positioning reference signal sent by the network side according to the second auxiliary information, wherein the second auxiliary information comprises at least one of the following information:
positioning a use scene of a reference signal;
positioning the number of sending ports corresponding to the reference signals;
the sending times corresponding to the positioning reference signals;
the corresponding relation between the number of sending ports of the positioning reference signal and the sending times;
a sending port and sending times of the positioning reference signals and a mapping mode of the positioning reference signals;
a configuration in which the positioning reference signal supports antenna switching;
the positioning reference signal supports a mapping mode of antenna switching.
31. The method of claim 30, wherein a guard interval of Q symbol lengths is required to be configured between two transmissions of the positioning reference signal resource, wherein the two transmissions of the positioning reference signal resource are transmitted in a same timeslot, and Q is an integer greater than 0.
32. The method according to claim 30, wherein the mapping relationship between the number of transmission ports of the positioning reference signal and the number of transmissions, or the configuration that the positioning reference signal supports antenna switching comprises: x number of transmit ports and Y transmissions.
33. The method according to claim 30, wherein the mapping manner of the transmission port, the transmission number and the positioning reference signal of the positioning reference signal, or the mapping manner of the positioning reference signal supporting antenna switching comprises at least one of:
mapping M positioning reference signal resources in the same positioning reference signal resource set to each transmission;
mapping N positioning reference signal resources in the L positioning reference signal resource sets to each transmission;
b positioning reference signal resources in the same positioning reference signal resource set are repeatedly mapped to be sent for each time;
e positioning reference signal resources in D positioning reference signal resources in the C positioning reference signal resource sets are repeatedly mapped to be sent for each time;
the ports corresponding to the sending are different, and M, L, N, A, B, C, D and E are integers greater than 0.
34. The positioning method according to claim 33,
if the number of the positioning reference signal resources is equal to the sending times, each positioning reference signal resource is corresponding to each sending;
if the number of the positioning reference signal resources is more than the sending times, the former Y positioning reference signal resources are sent for Y times, and the latter positioning reference signal resources are sent for Y times repeatedly every Y times;
and if the number of the positioning reference signal resources is less than the sending times, the sending times are the same as the number of the positioning reference signal resources.
35. The positioning method according to claim 1, wherein the first measurement information of each target positioning reference signal corresponds to a same receiving beam, and the same receiving beam comprises at least one of:
receiving a receiving beam corresponding to the synchronization signal block SSB;
receiving a receiving wave beam corresponding to a Physical Downlink Control Channel (PDCCH) or a Physical Downlink Shared Channel (PDSCH);
receiving beams of reference signals with the maximum RSRP in all the target positioning reference signals;
receiving beams of reference signals with the maximum first path RSRP in all the target positioning reference signals;
a reception beam corresponding to a transmission beam for transmitting a reference signal for channel sounding SRS;
and a reception beam corresponding to a transmission beam for transmitting a Physical Uplink Control Channel (PUCCH) or a Physical Uplink Shared Channel (PUSCH).
36. The positioning method according to claim 1, further comprising:
the terminal reports receiving beam information corresponding to the first measurement information of each target positioning reference signal, and the receiving beam information includes at least one of the following:
receiving a beam index;
terminal direction information;
terminal rotation information;
beam angle information is received.
37. A method of positioning, comprising:
the LMF sends at least one of the following to the terminal:
first assistance information for configuring positioning reference signal beam related information;
the first request information is used for indicating a positioning reference signal or configuration update which a network side desires to report;
and/or
The LMF receives first auxiliary information sent by a base station, wherein the first auxiliary information is used for configuring information related to positioning reference signal beams.
38. The positioning method according to claim 37, wherein the first assistance information comprises at least one of:
identifying information of a positioning reference signal resource;
a first list of positioning reference signal identification information, the first list of positioning reference signal identification information being identification information of positioning reference signals corresponding to beams adjacent to a positioning reference signal resource transmission beam;
a second list of positioning reference signal identification information, the second list of positioning reference signal identification information being identification information of positioning reference signals adjacent to the transmission beam;
positioning the sending beam angle information corresponding to the reference signal resource;
positioning the transmission beam index information corresponding to the reference signal resource;
positioning the sending beam group information corresponding to the reference signal resource;
positioning priority information corresponding to reference signal resources, wherein the priority comprises a measurement priority and/or a reporting priority;
a transmit beam angle range;
the number of transmission beams to be measured and/or reported;
a number of adjacent transmit beams;
transmitting a type of beam, the type of beam comprising at least one of: a horizontal transmission beam, a vertical transmission beam, a three-dimensional transmission beam;
indication of adjacent beams;
base station side antenna information;
second precoding matrix information.
39. The positioning method of claim 37, wherein the first request information comprises at least one of:
a transmit beam angle range;
second threshold information of the first measurement information;
specific positioning reference signal identification information;
a particular number of positioning reference signals;
transmit beam index information of a specific positioning reference signal;
transmit beam group information of a specific positioning reference signal;
priority information of a specific positioning reference signal, wherein the priority comprises a measurement and/or reporting priority;
the number of transmission beams to be measured and/or reported;
the number of adjacent transmit beams;
a type of transmit beam;
indication of adjacent beams.
40. The positioning method according to claim 37, wherein the first request information is carried in at least one of the following messages:
LPP message RequestLocationInformation IE;
NRPPa messages.
41. The method of claim 37, further comprising:
and the LMF sends first indication information to a terminal, wherein the first indication information is used for indicating whether first measurement information of adjacent beams needs to be reported or not.
42. The method of claim 37, further comprising:
the LMF sends second auxiliary information to the terminal, wherein the second auxiliary information comprises at least one of the following information:
positioning a use scene of a reference signal;
positioning the number of sending ports corresponding to the reference signals;
the sending times corresponding to the positioning reference signals;
the corresponding relation between the number of sending ports of the positioning reference signal and the sending times;
a sending port and sending times of the positioning reference signals and a mapping mode of the positioning reference signals;
a configuration in which the positioning reference signal supports antenna switching;
the positioning reference signal supports a mapping mode of antenna switching.
43. The method of claim 37, further comprising:
the LMF receives first measurement information of a target positioning reference signal reported by the terminal;
the first measurement information includes at least one of:
RSRP information;
phase information;
first path RSRP information;
first path phase information;
reference path RSRP information;
reference radial phase information;
RSRP difference information from the reference path;
phase difference information from a reference path;
RSRP difference information with the first path;
phase difference information from the first path;
first precoding matrix information.
44. The method according to claim 43, wherein the first measurement information further comprises at least one of:
reference signal time difference RSTD information or RSTD difference information of a first path;
RSTD information or RSTD difference information of the reference path;
RSTD information or RSTD difference information of other paths;
TOA information or TOA difference information of the first path;
TOA information or TOA difference information of the reference path;
TOA information or TOA difference information of other paths;
Rx-Tx timing difference information or Rx-Tx timing difference information of head path receiving and sending time difference
The Rx-Tx timing difference information or Rx-Tx timing difference information of the reference path and the Rx-Tx timing difference information or Rx-Tx timing difference information of other paths;
wherein the other path is a path other than the head path or the reference path.
45. A method of positioning, comprising:
the base station sends at least one of the following to the terminal:
first assistance information for configuring positioning reference signal beam related information;
the first request information is used for indicating a positioning reference signal or configuration update which is expected to be reported by a network side;
and/or the presence of a gas in the gas,
and the base station sends first auxiliary information to the LMF, wherein the first auxiliary information is used for configuring information related to positioning reference signal beams.
46. The method according to claim 45, wherein the first assistance information comprises at least one of:
identifying information of a positioning reference signal resource;
a first list of positioning reference signal identification information, the first list of positioning reference signal identification information being identification information of positioning reference signals corresponding to beams adjacent to a positioning reference signal resource transmission beam;
a second list of positioning reference signal identification information, the second list of positioning reference signal identification information being identification information of positioning reference signals adjacent to the transmission beam;
positioning the sending beam angle information corresponding to the reference signal resource;
sending beam index information corresponding to the positioning reference signal resource;
positioning the sending beam group information corresponding to the reference signal resource;
positioning priority information corresponding to reference signal resources, wherein the priority comprises measurement and/or reporting priority;
a transmit beam angle range;
the number of transmission beams to be measured and/or reported;
the number of adjacent transmit beams;
transmitting a type of beam, the type of beam comprising at least one of: a horizontal transmission beam, a vertical transmission beam, a three-dimensional transmission beam;
indication of adjacent beams;
base station side antenna information;
second precoding matrix information.
47. The method according to claim 45, wherein the first request message comprises at least one of:
a transmit beam angle range;
second threshold information of the first measurement information;
specific positioning reference signal identification information;
a particular number of positioning reference signals;
transmit beam index information of a specific positioning reference signal;
transmit beam group information of a specific positioning reference signal;
priority information of a specific positioning reference signal, wherein the priority comprises a measurement and/or reporting priority;
the number of transmission beams to be measured and/or reported;
the number of adjacent transmit beams;
a type of transmit beam;
indication of adjacent beams.
48. The positioning method according to claim 45, wherein the first request information is carried in at least one of the following messages:
an NPRRa message;
MAC CE;
DCI。
49. a positioning device, comprising:
a determining module for determining a target positioning reference signal;
a processing module, configured to determine first measurement information of the target positioning reference signal and/or report the first measurement information of the target positioning reference signal;
wherein the target positioning reference signal is determined according to at least one of the following modes:
pre-defining rules;
first auxiliary information sent by a network side, wherein the first auxiliary information is used for configuring information related to a positioning reference signal beam;
the first request information is used for indicating a positioning reference signal or configuration update which the network side desires to report.
50. A positioning device, comprising:
a first sending module, configured to send at least one of the following to a terminal:
first assistance information for configuring positioning reference signal beam related information;
the first request information is used for indicating a positioning reference signal or configuration update which a network side desires to report;
and/or
A receiving module, configured to receive first auxiliary information sent by a base station, where the first auxiliary information is used to configure information related to a positioning reference signal beam.
51. A positioning device, comprising:
a first sending module, configured to send at least one of the following to a terminal:
first assistance information for configuring positioning reference signal beam related information;
the first request information is used for indicating a positioning reference signal or configuration update which a network side desires to report;
and/or
A second sending module, configured to send first assistance information to the LMF, where the first assistance information is used to configure information related to a positioning reference signal beam.
52. A terminal comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, the program or instructions when executed by the processor implementing the steps of the positioning method according to any one of claims 1 to 36.
53. A network-side device comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, the program or instructions when executed by the processor implementing the steps of the positioning method according to any one of claims 37 to 44; alternatively, the program or instructions, when executed by the processor, implement the steps of the positioning method of any of claims 45 to 48.
54. A readable storage medium, characterized in that the readable storage medium stores thereon a program or instructions which, when executed by a processor, implements the positioning method according to any one of claims 1 to 36, or implements the steps of the positioning method according to any one of claims 37 to 44; or implementing the steps of the positioning method of any of claims 45 to 48.
CN202110286726.6A 2021-03-17 2021-03-17 Positioning method, terminal and network side equipment Pending CN115119136A (en)

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