Method and system for measuring location information in a wireless network

Abstract

A method and system for NLOS determination, providing an association between UL SRS resources and UE Tx TEG is disclosed. In addition, a system and method for improving positioning accuracy by mitigating NLOS errors and / or by performing two-stage beam scanning for DL-AoD is disclosed. In addition, a system and method for performing M-sample positioning measurements to improve delayed reporting in conjunction with positioning reporting is disclosed.

Description

[0001] This application claims priority to U.S. Provisional Application Serial No. 63 / 182,758 filed on April 30, 2021, U.S. Provisional Application Serial No. 63 / 225,870 filed on July 26, 2021, and U.S. Application Serial No. 17 / 709,394 filed on March 30, 2022, the disclosures of which are incorporated herein by reference in their entirety. Technical Field

[0002] The subject matter disclosed herein relates to wireless networks. More particularly, the subject matter disclosed herein relates to a system and method for improving the accuracy and latency of positioning in wireless networks. Background Art

[0003] New Radio (NR) positioning may be standardized in Release 16 (Rel-16) of the 3rd Generation Partnership Project (3GGP) to meet basic positioning requirements of regulators and cover some commercial situations. In Release 17 (Rel-17) of 3GGP, positioning requirements to be met may include general commercial use cases with sub-meter position accuracy of less than 1m, and Industrial Internet of Things (IIoT) use cases with position accuracy of less than 0.2m. The target latency requirement is less than 100ms. For some IIoT use cases, a latency of about 10ms is expected. Summary of the invention

[0004] An example embodiment provides a method for non-line-of-sight (NLOS) determination in a wireless network, the method may include: performing measurements for positioning at a user equipment (UE); determining at the UE an indication of whether the measurements for positioning are based on line-of-sight (LOS) conditions or NLOS conditions; and reporting the indication by the UE, wherein the indication may include a hard decision based on a binary value or a soft decision based on a probability that a detected path for positioning measurement is a LOS path or a NLOS path. In one embodiment, the UE may be configured to report the indication associated with the hard decision or the soft decision. In another embodiment, the method may also include: receiving at the UE an allocation of a UE / TRP timing window for the UE and a transmit / receive point (TRP) associated with the UE; performing at the UE a second measurement for positioning based on a first arrival path signal arriving at the UE during the UE / TRP timing window; and sending, by the UE, second measurement information for the second measurement for positioning based on the first arrival path signal. In yet another embodiment, the second measurement information may include a reference signal time difference (RSTD) measurement, a receive-transmit (Rx-Tx) time difference measurement, or a reference signal received power (RSRP) measurement. In yet another embodiment, the method may further include measuring, at the UE, additional one or more detected path signals that arrive at the UE during the UE / TRP timing window in addition to the first arriving path signal.

[0005] An example embodiment provides a method for providing an association between an uplink (UL) sounding reference signal (SRS) resource and a UE transmit (Tx) timing error group (Tx TEG) in a wireless network, the method may include: sending, by the UE in the wireless network, a first indication of a first capability of the UE to associate UL SRS resources with a Tx TEG of the UE; receiving, at the UE, a request for reporting association information of the SRS resource with the Tx TEG; and sending, by the UE, information associating the UL SRS with the Tx TEG via a physical uplink shared channel (PUSCH) of the wireless network. In one embodiment, the PUSCH and the SRS are in the same subframe, and the UE also provides information associating the UL SRS with the Tx TEG to the wireless network. In another embodiment, the method may also include: sending, by the UE, a second indication of a second capability of the UE to provide information associating a receive-transmit (Rx-Tx) time difference measurement with a receive and transmit timing error group (RxTx TEG).

[0006] An example embodiment provides a system in a wireless network, the system may include: a UE configured to send an indication of the UE's ability to associate a UL SRS resource of the wireless network with a TxTEG of the UE to the wireless network, the UE may also be configured to receive a request to report the Tx TEG from the wireless network, and send the association information of the UL SRS with the TxTEG to the wireless network via a PUSCH. In one embodiment, the PUSCH and the SRS are in the same subframe. In another embodiment, the TEG may also include information for the RxTx TEG to the UE.

[0007] An example embodiment provides a system in a wireless network, the system may include: a UE configured to provide an indication to the wireless network whether a measurement for positioning is based on a LOS or NLOS condition, wherein the indication may include a hard decision based on a binary value or a soft decision based on a probability that a detected path for the measurement for positioning is a LOS path or a NLOS path. In one embodiment, the UE may receive an allocation of a UE / TRP timing window for the UE and a TRP, and the UE may also be configured to perform a second measurement for positioning based on a first arrival path signal that arrives at the UE during the UE / TRP timing window, and send a report of the second measurement for positioning. In one embodiment, the report may include information of an RSTD measurement, an Rx-Tx time difference measurement, or an RSRP measurement. In another embodiment, the UE may also be configured to perform measurements for positioning based on additional one or more detected path signals that arrive at the UE during the UE / TRP timing window in addition to the first arrival path signal.

[0008] An example embodiment provides a method for measuring location information in a wireless network, the method may include: sending, by a UE, an indication that the UE is capable of performing positioning measurements using less than four measurement samples; receiving, at the UE, a request to perform one or more positioning measurements using less than four measurement samples or using four measurement samples; and sending, by the UE, a measurement report including the number of measurement samples used to perform positioning measurements. In one embodiment, the indication that the UE is capable of performing positioning measurements using four measurement samples or less than four samples may also be based on one or more reported UE capabilities. In another embodiment, the request to perform one or more positioning measurements may be used for downlink time difference of arrival (DL-TDOA) measurement, multi-cell round trip time (Multi-RTT) measurement, or downlink angle of departure (DL-AoD) measurement. In yet another embodiment, the measurement report may include RSTD measurement, UE Rx-Tx time difference measurement, or positioning reference signal-reference signal received power (PRS-RSRP) measurement. In yet another embodiment, the method may also include receiving, at the UE, a configuration grant (CG) type 1 message containing a configuration for measurement reporting.

[0009] An example embodiment provides a method for measuring location information in a wireless network, the method may include: receiving, by a UE, an indication that the wireless network may agree to positioning measurements based on four samples or fewer; performing positioning measurements by the UE using fewer than four measurement samples or using four measurement samples; and sending, by the UE, a measurement report including the number of measurement samples used for positioning measurements. In one embodiment, the indication that the UE is able to perform positioning measurements using four measurement samples or less than four samples may also be based on one or more reported UE capabilities. In another embodiment, the positioning measurements may be used for DL-TDOA measurements, Multi-RTT measurements, or DL-AoD measurements. In yet another embodiment, the measurement report may include RSTD measurements, UE Rx-Tx time difference measurements, or PRS-RSRP measurements. In yet another embodiment, the method may also include receiving, at the UE, a CG type 1 message containing a configuration for the measurement report.

[0010] An example embodiment provides a system in a wireless network, the system may include: a UE configured to send an indication to the wireless network that the UE is capable of performing measurements for positioning using less than four measurement samples, wherein the UE may be further configured to receive a request from the wireless network to perform measurements for positioning using less than four measurement samples or using four measurement samples, and to send a measurement report to the wireless network that may include the number of measurement samples used to perform measurements for positioning. In one embodiment, the request to perform measurements for positioning may be used for DL-TDOA measurements, Multi-RTT measurements, or DL-AoD measurements. In another embodiment, the measurements performed by the UE for positioning may include RSTD measurements, UE Rx-Tx time difference measurements, or PRS-RSRP measurements. In yet another embodiment, the UE may also be configured to receive a CG type 1 message containing a configuration for a report of measurements to be used by the UE for positioning.

[0011] An example embodiment provides a system in a wireless network, the system may include: a UE configured to send an indication to the wireless network that the UE is capable of performing measurements using less than four measurement samples, and the UE is further configured to determine a number of samples for positioning measurements to perform positioning measurements, and to send a measurement report including the number of samples for performing positioning measurements to the wireless network. In one embodiment, the positioning measurements are used for DL-TDOA measurements, Multi-RTT measurements, or DL-AoD measurements. In another embodiment, the positioning measurements performed by the UE may include RSTD measurements, UE Rx-Tx time difference measurements, or PRS-RSRP measurements. In yet another embodiment, the UE may also be configured to receive a CG Type 1 message including a configuration for a report to be used by the UE for positioning measurements.

[0012] An example embodiment provides a system in a wireless network, the system may include: a UE configured to receive a request from a wireless network to perform RSRP measurements on a first list of positioning reference signal (PRS) resources, wherein the first list of PRS resources belongs to two different lists of PRS resources from a TRP, wherein the first list of PRS resources may be different from the second list of PRS resources, and in response, perform RSRP measurements on the first list of PRS resources, and send the RSRP measurements on the first list of PRS resources to the wireless network. In one embodiment, the first list of PRS resources may include wide beam resources, and the second list of PRS resources may include narrow beam resources. In another embodiment, the first list of PRS resources may be quasi co-located (QCL) with the first list of PRS resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In the following sections, various aspects of the subject matter disclosed herein will be described with reference to exemplary embodiments shown in the accompanying drawings, in which:

[0014] Figure 1A shows a signal flow for a configured grant type 1, in which an uplink grant may be provided by a radio resource control (RRC) and stored as a configured uplink grant;

[0015] Figure 1B A signal flow for a configured grant type 2 is shown, in which an uplink grant may be provided by a physical downlink control channel (PDCCH) and stored or cleared as a configured uplink grant;

[0016] Figure 2 is a flow chart illustrating an example embodiment of a method of providing association between SRS and PUSCH for TEG transmissions according to the subject matter disclosed herein;

[0017] Figure 3 A wireless network configuration including multiple gNBs, multiple reflectors, and UEs is shown;

[0018] Figure 4 is a flow chart of an example embodiment of a method for a UE to report measurement positioning using a configured authorization according to the subject matter disclosed herein;

[0019] Figure 5 is a flow chart of an example embodiment of a method for a UE to perform measurements using a reduced number of samples according to the subject matter disclosed herein; and

[0020] Figure 6 An electronic device according to the subject matter disclosed herein is shown, which can be configured to reduce Rx / Tx timing errors, increase positioning accuracy by mitigating NLOS errors, perform two-stage beam scanning for DL-AoD, and / or perform M-sample measurements to improve delay reporting associated with location reporting. DETAILED DESCRIPTION

[0021] In the following detailed description, many specific details are set forth in order to provide a thorough understanding of the present disclosure. However, those skilled in the art will appreciate that the disclosed aspects may be practiced without these specific details. In other cases, well-known methods, processes, components, and circuits are not described in detail to avoid obscuring the subject matter disclosed herein.

[0022] References throughout this specification to "one embodiment" or "an embodiment" mean that the specific features, structures, or characteristics described in conjunction with the embodiment may be included in at least one embodiment disclosed herein. Therefore, the phrases "in one embodiment" or "in an embodiment" or "according to an embodiment" (or other phrases with similar meanings) that appear in various places throughout this specification may not necessarily all refer to the same embodiment. In addition, specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In this regard, as used herein, the word "exemplary" means "used as an example, instance, or illustration." Any embodiment described herein as "exemplary" should not be interpreted as necessarily being preferred or advantageous over other embodiments. In addition, specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In addition, depending on the context discussed herein, a singular term may include a corresponding plural form, and a plural term may include a corresponding singular form. Similarly, hyphenated terms (e.g., "two-dimensional", "predetermined", "pixel-specific", etc.) may sometimes be used interchangeably with corresponding non-hyphenated versions (e.g., "two-dimensional", "predetermined", "pixel-specific", etc.), and capitalized terms (e.g., "counter clock", "row select", "pixel output", etc.) may be used interchangeably with corresponding non-capitalized versions (e.g., "counter clock", "row select", "pixel output", etc.). Such sometimes interchangeable usage should not be considered inconsistent with each other.

[0023] In addition, depending on the context discussed herein, singular terms may include corresponding plural forms, and plural terms may include corresponding singular forms. It should also be noted that the various drawings (including component drawings) shown and discussed herein are for illustrative purposes only and are not drawn to scale. For example, the dimensions of some elements may be exaggerated relative to other elements for clarity. In addition, if deemed appropriate, reference numerals are repeated in the drawings to indicate corresponding and / or similar elements.

[0024] The terms used herein are only used for the purpose of describing some example embodiments and are not intended to limit the claimed subject matter. As used herein, unless the context clearly indicates otherwise, the singular forms "one", "an" and "the" are intended to also include plural forms. It will be further understood that when used in this specification, the term "includes" specifies the presence of features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof. As used herein, the terms "first", "second", etc. are used as labels for the nouns following them, and unless explicitly defined as such, do not imply any type of ordering (e.g., space, time, logic, etc.). In addition, the same figure numbers may be used across two or more figures to refer to parts, components, blocks, circuits, units or modules with the same or similar functions. However, this usage is only for the purpose of simplifying the description and facilitating discussion; this does not mean that the construction or architectural details of these components or units are the same in all embodiments, or that these commonly referenced parts / modules are the only way to implement some example embodiments disclosed herein.

[0025] It should be understood that when an element or layer is referred to as being on, "connected to" or "coupled to" another element or layer, it may be directly on, connected to or coupled to another element or layer, or there may be intermediate elements or layers. Conversely, when an element is referred to as being "directly on," "directly connected to" or "directly coupled to" another element or layer, there are no intermediate elements or layers. The same reference numerals always represent the same element. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0026] As used herein, the terms "first", "second", etc. are used as labels for the nouns that follow them, and do not imply any type of ordering (e.g., spatial, temporal, logical, etc.) unless explicitly defined as such. In addition, the same figure numerals may be used across two or more figures to refer to parts, components, blocks, circuits, units, or modules with the same or similar functions. However, this usage is only for simplicity of illustration and ease of discussion; it does not mean that the construction or architectural details of these components or units are the same in all embodiments, or that these commonly referenced parts / modules are the only way to implement some example embodiments disclosed herein.

[0027] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the subject matter belongs. It will be further understood that terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and will not be interpreted in an idealized or overly formal sense unless explicitly defined as such herein.

[0028] As used herein, the term "module" refers to any combination of software, firmware, and / or hardware configured to provide the functionality described herein in conjunction with the module. For example, software may be implemented as a software package, code, and / or instruction set or instructions, and the term "hardware" used in any embodiment described herein may include, for example, components, hardwired circuits, programmable circuits, state machine circuits, and / or firmware storing instructions executed by programmable circuits, either alone or in any combination. Modules may be implemented collectively or individually as circuits that form part of a larger system, such as, but not limited to, an integrated circuit (IC), a system on a chip (SoC), a component, etc.

[0029] To address the higher accuracy, lower latency positioning, and high integrity and reliability requirements arising from the new applications of Rel-17, the following work objectives can be set for Rel-17:

[0030]

[0031]

[0032] UE and gNB Rx / Tx timing errors for positioning

[0033] For user equipment (UE) and next generation Node B (gNB), most of the Rx / Tx timing delay can be pre-calibrated to support the transmission and reception of positioning reference signals. However, there may be residual Rx / Tx timing errors after pre-calibration. In addition, different Rx / Tx antenna panels and RF chains may have the same or different Rx / Tx timing errors. In order to capture the timing error, a timing error group (TEG) can be introduced. More specifically, the concepts of Rx / Tx timing error and timing error group can be formally defined as follows.

[0034] UE Tx “Timing Error Group” (UE TxTEG): A UE Tx TEG may be associated with the transmission of one or more uplink sounding reference signal (UL SRS) resources for positioning purposes and may have a T X Timing error.

[0035] TRP Tx "Timing Error Group" (TRP Tx TEG): A transmission point (TRP) Tx TEG may be associated with the transmission of one or more DL Positioning Reference Signal (PRS) resources and may have a Tx timing error within a certain margin.

[0036] UE Rx "Timing Error Group" (UE Rx TEG): A UE Rx TEG may be associated with one or more downlink (DL) measurements and may have an Rx timing error within a certain margin.

[0037] TRP Rx "Timing Error Group" (TRP Rx TEG): A TRP Rx TEG may be associated with one or more UL measurements and may have an Rx timing error within a margin.

[0038] Some embodiments disclosed herein may support the following related to TEG:

[0039]

[0040]

[0041]

[0042] Accuracy improvement of DL-AoD positioning

[0043] The measurement and reporting process of gNB and UE in Rel-16 Downlink Angle of Departure (DL-AoD) can be improved to obtain higher accuracy. Specifically, some embodiments disclosed herein can support the following DL-AoD positioning related content:

[0044] Supports DL-AoD angle calculation enhancements:

[0045]

[0046] The following enhancements are supported under UE capabilities for DL-AoD positioning methods for UE-B and UE-A:

[0047]

[0048] Configured authorization UL sends

[0049] For Rel-16 NR positioning, the positioning measurement reporting from the UE to the Location Management Function (LMF) can be transparent to the serving base station and the normal uplink access process of the UE sending a Scheduling Request (SR) for access to the channel can be used. This may result in significant delays.

[0050] Figure 1AA signal flow is shown for a configured grant type 1 in which an uplink grant may be provided by a radio resource control (RRC) and stored as a configured uplink grant. At 101, an RRC is sent from the gNB to the UE. At 102, the UE sends an UL data transmission to the gNB. At 103, the gNB provides HARC feedback. At 104, the gNB sends an RRC configuration failure to the UE.

[0051] Figure 1B A signal flow is shown for a configured grant type 2 in which an uplink grant may be provided by a physical downlink control channel (PDCCH) and stored or cleared as a configured uplink grant. At 111, an RRC is sent from the gNB to the UE. At 112, the gNB sends L1 signaling to the UE indicating activation or deactivation of the configured uplink grant. At 113, the UE sends UL data transmission to the gNB. At 114, the gNB provides HARC feedback. At 115, the gNB sends L1 signaling deactivation to the UE.

[0052] A scheduling request (SR) for a configured grant (CG) may not be sent before sending an uplink packet, which may tend to reduce overall latency. A configured grant may be configured with a ConfiguredGrantConfig element, as shown in the following example ConfiguredGrantConfig information element (IE).

[0053] ConfiguredGrantConfig Information Element

[0054]

[0055]

[0056]

[0057] In some embodiments of Rel-16, the UE (i.e., the target device) may use the IE NR-DL-TDOA-ProvideCapabilities to indicate that the UE supports the capability of NR DL-TDOA and provide the UE's NR DL-TDOA positioning capability to the location server. An example IE NR-DL-TDOA-ProvideCapabilities is shown below.

[0058]

[0059] For DL-TDOA, the UE may provide the Rx TEG associated with the RSTD measurement to the LMF for timing error mitigation. In some embodiments of Rel-16, the UE may use the IE NR-DL-TDOA-SignalMeasurementInformation to provide NR DL-TDOA measurements to the location server. An example IE NR-DL-TDOA-SignalMeasurementInformation is shown below. Similarly, the reported Rx TEG from the UE to the LMF may be included in the IE NR-DL-TDOA-SignalMeasurementInformation.

[0060]

[0061]

[0062] SRS Configuration

[0063] In some embodiments, IE SRS-Config may be used to configure the transmission of sounding reference signals. The configuration may define a list of SRS-Resources and a list of SRS-ResourceSets. Each resource set may define a set of SRS-Resources. The network may use the configured aperiodicSRS-ResourceTrigger (L1 DCI) to trigger the transmission of a set of SRS-Resources. IE SRS-Resources may define resources for Rel-16 positioning. An example IE SRS-Resources is shown below:

[0064] SRS-PosResource

[0065]

[0066]

[0067]

[0068]

[0069]

[0070]

[0071]

[0072] LPP and NRPPa News

[0073] The location server may provide assistance data to a target device in response to a request from the target device or in an unsolicited manner using a ProvideAssistanceData message body in a Long Term Evolution (LTE) Positioning Protocol (LPP) message. An example ProvideAssistanceData is shown below.

[0074]

[0075] The UE may provide positioning measurements or a location estimate to a location server using the ProvideLocationInformation message body in an LPP message. An example ProvideLocationInformation message body in an LPP message is shown below.

[0076]

[0077]

[0078] A Next Generation Radio Access Network (NG-RAN) node may send a Measurement Report message to report positioning measurements of a target UE. A description of different example fields of a Measurement Report message sent by a NG-RAN node is shown below.

[0079] Direction: NG-RAN node → LMF

[0080]

[0081]

[0082] The IE TRP Measurement Result may contain measurement results. A description of example fields of the IE TRP Measurement Result is shown below.

[0083]

[0084] Improved accuracy through Rx / Tx timing error mitigation

[0085] The subject matter disclosed herein provides a signaling configuration of a UE for implementing measurement reporting to provide accuracy improvement of timing-based and angle-based positioning.

[0086] Signaling design for Rx / Tx TEG

[0087] UE Tx TEG for UL-TDOA

[0088] For uplink technologies (e.g., UL-TDOA), the UE may indicate the TEG associated with the SRS signal. In one embodiment, the UE may report the capability to provide TEG using SRS by adding a reportTEG field in the existing NR-UL-ProvideCapabilities. The UE may then provide TEG using actual measurements.

[0089] Figure 2 is a flow chart illustrating an example embodiment of a method 200 for providing an association between SRS and PUSCH for TEG transmission according to the subject matter disclosed herein. At 201, the UE sends an NR-UL-ProvideCapabilities to the gNB indicating the TEG for which the UE is capable of reporting UL TDOA. At 202, the UE receives a request from the gNB to send an SRS for positioning. The SRS configuration may be the same configuration as some embodiments of Rel-16. The SRS may be periodic or aperiodic and triggered by RRC signaling or dynamic DCI signaling. For fully static mapping, the SRS configuration for NR may be provided in the SRS-PosResource RRC message (see SRS configuration above). The message contains the srs-PosResourceId IE. The UE may send an RRC message that uniquely connects the srs-PosResourceId to a given TEG. For dynamic mapping, the UE may indicate which TEG to use each time the UE sends an SRS.

[0090] At 203, the UE receives a PUSCH grant associated with SRS positioning from the gNB. The UE may indicate a TEG associated with SRS positioning. In one embodiment, the UE may send the TEG in a physical uplink shared channel (PUSCH) in the same subframe as the SRS used for positioning. If the SRS transmission is triggered by a higher layer, the association of the TEG with the SRS positioning is whether the UE receives a PUSCH grant in the same timeslot as the UE sends the SRS for positioning, in which case the UE sends the TEG in the PUSCH grant. Note that the PUSCH may send the TEG in an RRC message or a MAC CE message. Furthermore, the SRS and PUSCH transmissions do not necessarily have to be in the same subframe. The PUSCH may be sent using a fixed offset (in terms of timeslots) known to both the UE and the gNB. In this way, there may be an implicit link between the TEG and the SRS used for positioning. Alternatively, an explicit link may be used, but the explicit link may involve additional signaling (e.g., a new field in the DCI).

[0091] At 204, the UE sends an SRS for positioning in a manner similar to that used for Rel-16. At 205, the UE may report the TEG on the PUSCH resources associated with the SRS. The PUSCH may not only carry the TEG, but also, using the shared nature of the channel, may contain additional control, data, etc. The Tx TEG information may then be forwarded to the LMF.

[0092] In some embodiments of Rel-16 positioning, the UE may use the IE NR-UL-ProvideCapabilities to indicate the UE's ability to support UL-PRS and provide the UL-PRS capabilities of the target device to the location server. An example IE NR-UL-ProvideCapabilities that may be defined in some embodiments is as follows:

[0093]

[0094] New signaling may be used for UE reporting association information of UL SRS resources with Tx TEGs in UL-TDOA. The UE may send a message (e.g., RRC) in which the UE may indicate which SRS the TEG is linked to (e.g., by signaling a subframe / time slot in an RRC message). By having the UL SRS for positioning and the associated reported TEG in the same time slot, the reporting may be done in a simpler manner. In this way, the association may be implicit, less standard effort may be required to define new messages, and overhead may be reduced.

[0095] UE R for Multi-RTT X T X TEG

[0096] For multi-cell round trip time (Multi-RTT), information about TEG for both uplink and downlink may be involved. The NR-Multi-RTT-SignalMeasurementInformation IE may be used for this purpose. In addition, the capability to provide TEG shall be included. X -T X Time difference measurement, LMF obtains UE R X and T X The sum of the timing error levels can be critical.

[0097] The target device may use the IE NR-Multi-RTT-SignalMeasurementInformation to provide NRMulti-RTT measurements to the location server. The measurements may be provided as a list of TRPs, where the first TRP in the list may be used as a reference TRP. An example IE NR-Multi-RTT-SignalMeasurementInformation is shown below:

[0098]

[0099]

[0100] UE reporting for NLOS mitigation

[0101] There may be a reduction in positioning accuracy when a non-line-of-sight (NLOS) link may be present during the positioning estimation process. For the Industrial Factory Dense High (INF-DH) scenario, the sub-meter requirement for horizontal positioning accuracy may not be achieved in both the frequency range 1 (FR1) and frequency range 2 (FR2) bands due to the presence of the NLOS path. The received signal corresponding to the NLOS path has a delay offset when compared to the case of only the line-of-sight (LOS) path, which may be due to additional reflections and scattering and different angles of arrival or departure. Therefore, the identification and elimination of the NLOS path is beneficial to both time-based and angle-based positioning techniques.

[0102] In one embodiment, a method for NLOS mitigation in positioning may be to have the UE / TRP report with measurements whether or not based on LOS / NLOS conditions. The LMF may then take this information into account when performing positioning. This may be accomplished by having a LOS / NLOS indicator utilizing the measurement report.

[0103] In one embodiment, the reported LOS / NLOS indicator can be a hard decision (binary value) or a soft decision (actual value, such as the probability that the path is NLOS or LOS). Hard decision indicators rely on the performance of UE / TRP LOS / NLOS detection and may result in lower complexity at the LMF. However, soft decisions may provide higher accuracy for positioning performance.

[0104] For example, consider Figure 3 The DL-TDOA positioning shown shows a wireless network configuration 300 including multiple gNBs, multiple reflective objects (shown as buildings), and UEs. UE and gNB 1 The wireless path between UE and gNB is the LOS path. 2 -gNB 4 All other paths are NLOS paths.

[0105] If a hard decision indication is reported, the indication does not take into account the possibility of NLOS detection. Figure 3 As shown, some TRP-UE paths may be almost LOS (i.e., close to the UE or reflectors of the TRP), while other TRP-UE paths are very likely to be NLOS (i.e., far from the UE / TRP reflectors). Therefore, not all NLOS conditions are equal, and LMF may have an advantage in selecting reported measurements corresponding to better channel conditions. Therefore, if soft decision indications are reported, the reported RSTD measurements may be classified according to a specific metric at the location server. The location server may select some of the reported measurements that are more likely to be measurements of the LOS path, or assign different weights to all measurements according to the associated NLOS conditions used for the location calculation. In addition, the soft value LOS / NLOS indicator may be input into the optimization algorithm to improve the overall location accuracy.

[0106] In some embodiments, the configuration of the NLOS / LOS indicator as hard or soft may be done by the LMF. The configuration may be sent in an RRC message such as IE ProvideAssistanceData. And the NLOS / LOS indicator may be reported in an RRC message by the UE in IE ProvideLocationInformation and / or by the TRP in IE TRP Measurement Result in a MEASUREMENT REPORT message. A description of different example fields of a TRP measurement result is set forth above.

[0107] In some embodiments, the UE may use the higher layer parameters nr-DL-PRS-ExpectedRSTD (RSTD, R X -T XTime difference, reference signal received power (RSRP)) is configured with a measurement window in the time domain. Similar processing can be used for NLOS mitigation for positioning. Specifically, in one embodiment, the UE may be configured with a timing window for each TRP by the LMF for searching for a DL-PRS signal corresponding to the first arriving LOS path. The measurement window may correspond to the uncertainty range of the first arriving signal along the LOS path. The configuration of the search window may involve a priori rough knowledge of the UE position at the LMF. This may be similar to the configuration of nr-DL-PRS-ExpectedRSTD. In another embodiment, the timing window may be configured for both the UE and the TRP by the LMF for positioning measurements (UL RTOA, Rx-Tx time difference), and for both timing-based positioning methods and angle-based positioning methods. Given a timing window, the UE / TRP may perform positioning measurements based on the path arriving within the window.

[0108] In some embodiments, subject to the capabilities of the UE, the UE may be configured to measure and report timing and quality metrics for up to two additional detected paths that may be associated with each RSTD or UE Rx-Tx time difference. Additional path reporting may be beneficial for NLOS mitigation for both angle-based positioning methods and timing-based positioning methods. Specifically, when pattern matching methods may be used for DL-AoD, the information of additional paths may improve positioning accuracy by providing a higher dimensional UE RSRP measurement vector.

[0109] Two-stage beam scanning for DL-AOD

[0110] Another way to reduce delay and improve accuracy in DL-AoD may be to use two-stage beamforming for RSRP measurements. In the current specification, up to 2 DL-PRS resource sets per TRP are supported. In some ways, this may have been achieved by allowing one DLPRS resource set for narrow beams and one DLPRS resource set for wide beams to implement two-stage beam scanning. However, what is missing in the current specification is some association information between the DL-PRS resources within the two sets (e.g., DLPRS resources X and Y from set 2 are nested in DLPRS resource Z from set 1). The association information can be known only at the LMF. Therefore, one solution may be that the LMF may request the UE to measure a specific list of PRS resources, corresponding to the wide beam and narrow beam of the same TRP, respectively. Considering the fact that PRS resources belonging to the same PRS resource set have the same time-frequency domain configuration, when the TRP performs beam scanning, it may be desirable to configure a wide beam for one PRS resource set and a narrow beam for another different PRS resource set. Once the UE reports RSRP measurements, the LMF can determine the correlation between different PRS resources and improve the AoD measurement accuracy.

[0111] Another way to implement two-stage beamforming may be to introduce a new quasi co-location (QCL) relationship between PRS resources in two different PRS resource sets. The following protocols have been approved in 3GPP meeting RAN1#99, which are related to the QCL relationship between PRSs.

[0112]

[0113] Based on the Rel-16 positioning mechanism, some embodiments disclosed herein may include new signaling that enables the LMF to notify the UE that two-stage beamforming is applied. When using two-stage beamforming, if the UE measures a DL-PRS resource that is a QCL source for other PRS resources, the UE should also measure all other PRS resources that are QCL with the PRS resource. Specifically, some embodiments may include IE TwostageBeamforming in the following PRS configuration IE NR-DL-PRS-Info. The newly introduced IE can be used to indicate a new QCL relationship between PRS resources from the same TRP. The new QCL relationship can be defined as a QCL resource corresponding to a wide Tx beam and a PRS resource that is QCL with a resource corresponding to a narrow Tx beam. If IETwoStageBeamforming is set to false or missing, it means that two-stage beamforming may not be performed and the traditional QCL relationship is applied to the PRS resources.

[0114]

[0115]

[0116]

[0117] Two-stage beam scanning for DL-AoD may be provided by performing one or both of the following techniques. In one embodiment, the LMF may request the UE to perform RSRP measurements on a specific list of PRS resources belonging to different PRS resource sets from the same TRP. Optionally, a new QCL relationship (indicated by a new IE included in the existing IE PRS-QCL-Info) may be used, where in the new QCL relationship the UE measures the QCL source PRS resources in one PRS resource set for a wide beam and all corresponding PRS resources that QCL with the source PRS resources in another PRS resource set for a narrow beam.

[0118] Latency improvements for Rel-17NR positioning

[0119] Measurement report with configured authorization

[0120] In one embodiment, a configured grant (CG) may be used to report location measurements to eliminate delays associated with sending a scheduling request (SR). For example, for TDOA, the CG used to report RSTD may be configured with the same periodicity as the PRS and may be scheduled immediately after the PRS, taking into account any measurement processing delays. The UE may then use the CG to report RSTD. Similar reporting may be used for other technologies. Additionally, CG Type 1 may be selected, given that CG Type 1 may incur relatively less overhead because activation / deactivation may not require DCI. In one embodiment, the network may configure CG Type 1 for measurement reporting for Rel-17 positioning.

[0121] Figure 4 is a flow chart of an example embodiment of a method 400 for a UE to report measurement positioning using a configured grant according to the subject matter disclosed herein. At 401, the UE receives a CG configuration from a gNB by, for example, receiving a ConfiguredGrantConfig that can uniquely reference the CG. In one embodiment, if configuredGrantConfigIndex includes a specific predetermined value (e.g., 63), the UE can know that the CG is used to report location information. In another embodiment, configuredGrantConfigIndex can have any value, in which case the link between the CG and the location information report can be completed in the obtain measurement configuration process.

[0122] At 402, the UE may receive a configuration for specific measurements to be performed by the UE. Such a configuration message may include some or all of the following: the type of positioning to be performed (e.g., TDOA, DL-AOD, etc.); the type of measurement to be reported (e.g., RSTD, angle, RSRP, actual position, etc.); how the positioning may be completed (e.g., UE-assisted or UE-based); and the PRS index (or multiple indexes) that the UE may use to perform the measurement. In addition, if configuredGrantConfigIndex is any value other than a predetermined value, a CG index may be included. Otherwise, if the UE knows when a specific CG index is to be used, the CG index may be omitted from the configuration message.

[0123] The obtained measurement message may originate from the LMF or the gNB. The message may cause some information exchange between the gNB and the LMF. For example, the CG index may be determined by the gNB. If the LMF sends the configuration of the message, the LMF may receive the CG index from the gNB. Similarly, the CG periodicity may be associated with one or more PRS periodicities. Therefore, the gNB may obtain this information from the LMF.

[0124] In one embodiment, operations 401 and 402 may be combined into a single operation. In this case, the signaling that may be involved may be a message containing a CG configuration and a measurement configuration (e.g., CGConfigurationForPositioningReporting). An optional embodiment may include separating information from the gNB and information from the LMF. Another optional embodiment may include the following three messages. A ConfiguredGrantConfig message may be received from the gNB, and a measurement configuration message may be received from the LMF. A third message may be received from the gNB indicating a link between the configured grant and the measurement message from the LMF. This may be a message indicating the configured grant index (i) and the measurement configuration index (j). By receiving the third message, the UE knows that the UE will report measurements associated with j on the CG indexed by i.

[0125] At 403, the UE performs the measurements that have been indicated by the measurement configuration message. At 404, the UE uses the CG associated with the measurement configuration to report the measurements that can be used by the network.

[0126] M-Sample Measurement

[0127] The M-sample measurement may rely on having additional signaling to indicate the number of samples used for averaging or to report the number of samples used. Additionally, the following describes UE behavior operating with a variable number of samples. Figure 5 is a flow chart of an example embodiment of a method 500 for a UE to perform measurements using a reduced number of samples according to the subject matter disclosed herein.

[0128] At 501, the UE indicates the sampling capability of the UE by sending a message to the gNB. UEs operating under Rel-16 use a sample size of 4. Therefore, the use of a variable number of samples may be indicated by the UE's capabilities, which is new signaling and independent of the existing Rel-16 UE capabilities for positioning measurements. The new capability signaling may be optional and if no signaling is present, it means that the UE will use 4 samples for positioning measurements.

[0129] For DL-TDOA, the newly introduced UE capabilities may be included in the IE NR-DL-TDOA-MeasurementCapability that defines the DL-TDOA measurement capabilities of the UE. An example of new capability signaling may be the IE lessThan4SamplesforMeasurement that indicates whether the UE supports performing measurements with less than 4 samples for positioning. Another example of new capability signaling may be an IE that indicates the minimum number of samples that the UE can use for positioning measurements, i.e., an IE NumberofSamplesforMeasurement with an integer value ranging from {1, 2, 3, 4}. An example of IE NumberofSamplesforMeasurement is shown below.

[0130]

[0131]

[0132] For DL-AoD, the newly introduced UE capabilities may be included in the IE NR-DL-AoD-MeasurementCapability that defines the DL-AoD measurement capability. An example of the IE NR-DL-AoD-MeasurementCapability is shown below.

[0133]

[0134] For multiple RTTs, the newly introduced UE capabilities may be included in the IE NR-Multi-RTT-MeasurementCapability which defines the multiple RTT measurement capabilities. An example of the IE NR-Multi-RTT-MeasurementCapability is shown below.

[0135]

[0136] For the LTE positioning method OTDOA, UE capability signaling for the number of samples for RSTD measurement may be included in IEOTDOA-ProvideCapabilities.

[0137] At 502, the LMF may send a measurement request via the gNB. In one embodiment, the measurement request may be the same as the existing measurement request. In the current specification, the location measurement request may be included in the IE NR-DL-TDOA-RequestLocationInformation, IE NR-DL-AoD-RequestLocationInformation, IE NR-Multi-RTT-RequestLocationInformation for positioning methods DL-TDOA, DL-AoD, and multiple RTT, respectively. The location server may use these IEs to request NR location measurements from the target device. An example of detailed signaling is shown below:

[0138]

[0139]

[0140]

[0141]

[0142] At 503, the UE receives an indication of the number of samples to be used for measurement. The UE may be configured to use a predetermined number of samples via a new message via RRC signaling. The number of samples may be configured on a per-cell basis. In this case, the number of samples may be sent in IE SIBpos. IE SIBpos specified in TS38.331 is shown below as an example:

[0143]

[0144] The number of samples to use may be provided in a lookup table, wherein the lookup table includes conditions linked to the number of samples to use. For example, using the example of a SINR threshold, the lookup table may include the following information.

[0145] For PRS RSRP lower than X1, the UE uses 4 samples,

[0146] Otherwise, for PRS RSRP greater than X1 but less than X2, the UE uses 3 samples,

[0147] Otherwise, for PRS RSRP greater than X2 but less than X3, the UE uses 2 samples,

[0148] Otherwise, use a sample,

[0149] Among them, SINR threshold X1 <X2<X3。

[0150] Although described herein as depending on a single parameter, the lookup table may include other parameters, such as whether the UE experiences a possible LOS condition; the number of receive antennas, etc. The lookup table may be indicated by public or dedicated RRC signaling. Optionally, the lookup table may not be signaled in whole or in part, but may be linked to the capabilities of the UE. For example, if the UE indicates a specific capability X, this would mean that the UE uses a predetermined lookup table that is assigned the specific capability X.

[0151] At 504, the UE performs RSDT measurements for DL-TDOA, DL-AoD and Multi-RTT, UE ERx-Tx time difference measurements and PRS-RSRP measurements using the number of samples according to the configured sampling configuration. If the LMF provides a maximum number of samples for positioning measurements, the UE follows the LMF instructions and, if the UE supports fast measurements with a number of samples less than 4, performs measurements with a number of samples less than the maximum number provided by the LMF. Otherwise, the UE performs measurements using a number of samples based on the configuration for sampling and the current channel conditions. At 505, if the UE uses less than 4 samples for measurement, the UE reports the number of samples used in the measurement report.

[0152] That is, the UE indicates the number of samples used for measurement in the report. For implementations of timing-based methods including DL-TDOA, DL-AoD and multiple RTTs, the UE may indicate the number of samples used for positioning measurements in the measurement report. Specifically, for DL-TDOA positioning, a new IE nr-NumberofSamples may be included in the IE NR-DL-TDOA-SignalMeasurementInformation, as shown in the example in Table 1. For multiple RTTs, a new IE nr-NumberofSamples may be included in the IE NR-Multi-RTT-SignalMeasurementInformation, as shown in the example in Table 2. For DL-AoD, a new IE may be included in the IE NR-DL-AoD-SignalMeasurementInformation, as shown in the example in Table 3.

[0153] Indication signaling may be optional for UE measurement reporting, and if the indication is not indicated, the number of samples used for timing measurements is 4 by default based on conventional design. In addition, the number of samples indicated for each measurement may be used as a reliability criterion at the LMF to determine the quality of the reported measurement, i.e., the more samples used for a measurement, the more reliable the measurement result. Another option may be that the UE uses a binary flag to indicate whether the UE used less than 4 samples for the measurement. The corresponding IE may be LessThan4Samples with a value of true or false, corresponding to a number of samples less than 4 and equal to 4, respectively.

[0154] Table 1 IE indicating the number of samples of DL-TDOA

[0155]

[0156]

[0157] Table 2 IE indicating the number of samples of Multi-RTT

[0158]

[0159] Table 3 IE indicating the number of samples of DL-AOD

[0160]

[0161]

[0162] In one embodiment, the UE may indicate to the LMF in the measurement report the number of samples for the corresponding RSDT, UE Rx-Tx difference and PRS-RSRP measurements for the NR positioning methods DL-TDOA, multiple RTTs and DL-AOD.

[0163] The UE behavior of using a reduced number of samples (i.e., less than 4 samples) for measurement can be determined by the LMF request or by the UE implementation. If the UE itself determines the number of samples for measurement, the UE first meets the measurement accuracy requirement. Under the condition that the measurement accuracy has been met, the UE can use as few samples as possible for measurement.

[0164] If the LMF requests the UE to use a reduced number of samples for measurement due to latency requirements, the UE may choose to report only a value for which the number of samples is sufficient to meet the accuracy requirements. Alternatively, the UE may provide two reports at different times, a first report based on a limited number of samples (as indicated by the LMF) and a subsequent second report based on full accuracy (4 samples). Additionally, if the first report has sufficient accuracy, the UE may indicate sufficient accuracy when sending the first report (explicitly or implicitly) and may completely skip sending the second report together. Yet another alternative provides that the UE may strictly follow the LMF request and use the number of samples specified by the LMF for measurement. If the UE strictly follows the LMF request, the UE does not include the number of samples used for measurement in the report.

[0165] LMF signaling changes

[0166] New signaling may be used for the LMF. If the delay requirement is the highest priority, or the LMF / gNB detects that the channel conditions are good, the LMF may also request the UE to reduce the number of samples used for timing measurement to reduce delay. In this case, the UE may first report the capability to support a reduced number of samples (i.e., the number of samples used for measurement is less than 4). If the UE supports reducing the number of samples used for measurement, the LMF may notify the UE of the number of samples to be used for measurement based on the delay requirements and / or channel conditions. For this purpose, new signaling that may be included in the existing IE RequestLocationInformation may be introduced. For example, the new IE NumberofSamplesPerMeasurement may be included in the IE NR-DL-TDOA-RequestLocationInformation for the DL-TDOA method, as shown in the example in Table 4; or included in the IE NR-Multi-RTT-RequestLocationInformation for the multiple RTT method, as shown in the example in Table 5; or included in the IE NR-DL-AoD-RequestLocationInformation information for DL-AoD, as shown in the example in Table 6. If there is no IE for reduced number of samples, this means that the UE can decide the number of samples to use by itself, assuming that the requirement for reduced number of samples has been configured through RRC signaling.

[0167] Table 4 IEs with reduced number of samples requested by LMF for DL-TDOA

[0168]

[0169] Table 5 IEs for reducing the number of samples requested by LMF for multiple RTTs

[0170]

[0171]

[0172] Table 6 IEs for DL-AoD with reduced number of samples requested by LMF

[0173]

[0174] The LMF may inform the UE of the number of samples used for RSTD, UE Rx-Tx time difference and PRS-RSRP measurements in the IE RequestLocationInformation.

[0175] Figure 6 An electronic device 600 is shown that in one embodiment may be configured to reduce Rx / Tx timing errors as disclosed herein. In another embodiment, the electronic device 600 may be configured to increase positioning accuracy by mitigating NLOS errors as disclosed herein. In yet another embodiment, the electronic device 600 may be configured to perform two-stage beam scanning for DL-AoD as disclosed herein. In yet another embodiment, the electronic device 600 may be configured for M-sample measurements to improve delay reporting in conjunction with position reporting as disclosed herein.

[0176] The electronic device 600 and various system components of the electronic device 600 may be formed by one or more modules. The electronic device 600 may include a controller (or CPU) 610, an input / output device 620 (such as but not limited to a keypad, a keyboard, a display, a touch screen display), a 2D image sensor, a 3D image sensor, a memory 630, an interface 640, a GPU 650, an imaging processing unit 660, a neural processing unit 670, and a TOF processing unit 680 coupled to each other via a bus 690. In one embodiment, the 2D image sensor, the 3D image sensor, and / or the non-contact thermal sensor may be part of the imaging processing unit 660. The controller 610 may include, for example, at least one microprocessor, at least one digital signal processor, at least one microcontroller, etc. The memory 630 may be configured to store command codes to be used by the controller 610 and / or store user data.

[0177] The interface 640 may be configured to include a wireless interface configured to send or receive data to or from, for example, a wireless communication network using RF signals. The wireless interface 640 may include, for example, an antenna. The electronic system 600 can also be used in communication interface protocols of communication systems, such as but not limited to Code Division Multiple Access (CDMA), Global System for Mobile Communications (GSM), North American Digital Communications (NADC), Extended Time Division Multiple Access (E-TDMA), Wideband CDMA (WCDMA), CDMA2000, Wi-Fi, Urban Wi-Fi (Muni Wi-Fi), Bluetooth, Digital Enhanced Cordless Telecommunications (DECT), Wireless Universal Serial Bus (Wireless USB), Fast Low Latency Access Orthogonal Frequency Division Multiplexing with Seamless Switching (Flash-OFDM), IEEE802.20, General Packet Radio Service (GPRS), iBurst, Wireless Broadband (WiBro), WiMAX, Advanced WiMAX, Universal Mobile Telecommunications Service-Time Division Duplex (UMTS-TDD), High Speed ​​Packet Access (HSPA), Evolution Data Optimized (EVDO), Advanced Long Term Evolution (Advanced LTE), Multi-channel Multipoint Distribution Service (MMDS), fifth generation wireless (5G), sixth generation wireless (6G), etc.

[0178] The embodiments of the subject matter and operations described in this specification may be implemented in digital electronic circuits, or in computer software, firmware or hardware, including the structures disclosed in this specification and their structural equivalents, or a combination of one or more of the structures disclosed in this specification and their structural equivalents. The embodiments of the subject matter described in this specification may be implemented as one or more computer programs encoded on a computer storage medium (i.e., one or more modules of computer program instructions) for execution by a data processing device or for controlling the operation of a data processing device. Alternatively or additionally, program instructions may be encoded on an artificially generated propagation signal (e.g., a machine-generated electrical, optical or electromagnetic signal), wherein the artificially generated propagation signal is generated to encode information for transmission to a suitable receiver device for execution by a data processing device. The computer storage medium may be a computer-readable storage device, a computer-readable storage substrate, a random or serial access memory array or device, or a combination thereof, or may be included in a computer-readable storage device, a computer-readable storage substrate, a random or serial access memory array or device, or a combination thereof. In addition, although a computer storage medium is not a propagation signal, a computer storage medium may be a source or destination of computer program instructions encoded in an artificially generated propagation signal. The computer storage medium may also be, or be included in, one or more separate physical components or media (e.g., multiple CDs, disks, or other storage devices). In addition, the operations described in this specification may be implemented as operations performed by a data processing device on data stored on one or more computer-readable storage devices or received from other sources.

[0179] Although this specification may include many specific implementation details, these implementation details should not be interpreted as limitations on the scope of any claimed subject matter, but should be interpreted as descriptions of features specific to a particular embodiment. Specific features described in the context of a separate embodiment in this specification may also be implemented in combination in a single embodiment. On the contrary, the various features described in the context of a single embodiment may also be implemented in multiple embodiments individually or in any suitable sub-combination. In addition, although the features may be described above as acting in a particular combination and even initially claimed as such, one or more features from the claimed combination may be deleted from the combination in some cases, and the claimed combination may be directed to a sub-combination or a variant of the sub-combination.

[0180] Similarly, although operations are shown in a particular order in the accompanying drawings, this should not be understood as requiring that the operations be performed in the particular order shown or in a sequential order, or that all of the operations shown be performed, to achieve the desired results. In certain circumstances, multitasking and parallel processing may be advantageous. In addition, the separation of various system components in the above-described embodiments should not be understood as requiring such separation in all embodiments, and it should be understood that the described program components and systems can generally be integrated together in a single software product or packaged into multiple software products.

[0181] Thus, specific embodiments of the subject matter have been described herein. Other embodiments are within the scope of the following claims. In some cases, the actions set forth in the claims can be performed in a different order and still achieve the desired results. Additionally, the processes shown in the accompanying drawings do not necessarily require the particular order or sequential order shown to achieve the desired results. In certain embodiments, multitasking and parallel processing may be advantageous.

[0182] As those skilled in the art will recognize, the innovative concepts described herein are susceptible to modification and variation over a wide range of applications. Therefore, the scope of the claimed subject matter should not be limited to any specific exemplary teachings discussed above, but rather is defined by the appended claims.

Claims

1. A method for measuring location information in a wireless network, the method comprising: Sending, by the user equipment UE, to the base station, an indication that the UE can use less than four measurement samples for positioning measurement; receiving, at a UE from the base station, a request to perform one or more positioning measurements using less than four measurement samples or using four measurement samples, the request including an indication of a number of samples to be used, wherein the UE is configured to use a predetermined number of samples via the request; as well as A measurement report including the number of measurement samples used for positioning measurement is sent by the UE to the base station.

2. The method according to claim 1, wherein: The indication that the UE is capable of performing positioning measurements with four measurement samples or less than four samples is also based on one or more reported UE capabilities.

3. The method according to claim 1, wherein: The request to perform the one or more positioning measurements is for a downlink time difference of arrival (DL-TDOA) measurement, a multi-cell round trip time (multi-RTT) measurement or a downlink angle of departure (DL-AoD) measurement.

4. The method according to claim 1, wherein: The measurement report includes reference signal time difference RSTD measurement, UE reception-transmission Rx-Tx time difference measurement, or positioning reference signal-reference signal received power PRS-RSRP measurement.

5. The method according to claim 1, further comprising: A configuration authorization CG type 1 message containing the configuration of the measurement report is received at the UE.

6. A method for measuring location information in a wireless network, the method comprising: receiving, by the user equipment UE, an indication that the location management function LMF is capable of accepting positioning measurements based on four samples or less; performing, by the UE based on a request including an indication of the number of samples to be used, positioning measurements using less than four measurement samples or using four measurement samples, wherein the UE is configured to use a predetermined number of samples via the request; as well as A measurement report including the number of measurement samples used for performing positioning measurements is sent by the UE.

7. The method according to claim 6, wherein: The indication that the UE is capable of performing positioning measurements with four measurement samples or less than four samples is also based on one or more reported UE capabilities.

8. The method according to claim 6, wherein: Positioning measurements are used for downlink time difference of arrival (DL-TDOA) measurements, multi-cell round trip time (multi-RTT) measurements, or downlink angle of departure (DL-AoD) measurements.

9. The method according to claim 8, wherein: The measurement report includes reference signal time difference RSTD measurement, UE reception-transmission Rx-Tx time difference measurement, or positioning reference signal-reference signal received power PRS-RSRP measurement.

10. The method according to claim 6, further comprising: A configuration authorization CG type 1 message containing the configuration of the measurement report is received at the UE.

11. A system in a wireless network, the system comprising: A user equipment UE is configured to send an indication to a base station that the UE is capable of performing positioning measurements using less than four measurement samples, and the UE is further configured to receive a request from the base station to perform positioning measurements using less than four measurement samples or using four measurement samples, the request comprising an indication of the number of samples to be used, wherein the UE is configured to use a predetermined number of samples via the request, and to send a measurement report to the base station including the number of measurement samples used for performing positioning measurements.

12. The system of claim 11, wherein: The request for performing positioning measurement is used for downlink time difference of arrival DL-TDOA measurement, multi-cell round trip time multi-RTT measurement or downlink angle of departure DL-AoD measurement.

13. The system of claim 11, wherein: The positioning measurement performed by the UE includes reference signal time difference RSTD measurement, UE reception-transmission Rx-Tx time difference measurement, or positioning reference signal-reference signal received power RSRP measurement.

14. The system of claim 11, wherein: The UE is also configured to receive a configured authorization CG type 1 message, wherein the configured authorization CG type 1 message contains configuration for reporting used by the UE for positioning measurements.

Images