Method and apparatus for positioning reference signal muting for user equipment positioning in full duplex systems

Abstract

Muting configuration for downlink positioning reference signals (PRS) is based on the type of slot in which the PRS is transmitted. If the PRS is transmitted in a full duplex slot, such as an in-band full duplex slot, the slot type muting configuration muting the PRS. If the PRS is transmitted in a sub-band full duplex slot, the PRS can be muted depending on whether the base station is capable of self-interference cancellation. The slot type muting configuration does not mute PRS transmissions in a half duplex slot. The slot type muting configuration can be dynamic and can be provided to user equipment in lower layer signaling to improve latency. The slot type muting configuration can be combined with other types of muting configurations, such as inter-instance muting, intra-instance muting, and intra-slot muting (e.g., using a logical function to combine the configurations).

Description

[0001] Cross-references to related applications

[0002] This application claims the rights and priorities of U.S. Provisional Application No. 63 / 076,845, filed September 10, 2020, entitled “METHODS AND APPARATUS FOR POSITIONING REFERENCE SIGNAL MUTING FOR USER EQUIPMENT POSITIONING IN FULL DUPLEX SYSTEMS,” filed August 26, 2021, entitled “METHODS AND APPARATUS FOR POSITIONING REFERENCE SIGNAL MUTING FOR USER EQUIPMENT POSITIONING IN FULL DUPLEX SYSTEMS,” which have been assigned to the assignee of this application and are incorporated herein by reference in their entirety. Technical Field

[0003] The subject matter disclosed herein relates to locating user equipment using received positioning reference signals, and more specifically to antenna adaptation of user equipment based on the configuration of positioning reference signals. Background Technology

[0004] Location information for user equipment (UE) in cellular phones can be useful or necessary for many applications, including emergency calls, navigation, direction finding, asset tracking, and internet services. The UE's location can be estimated based on information collected from various systems. In cellular networks implemented using 4G (also known as fourth-generation) Long Term Evolution (LTE) radio access or 5G (also known as fifth-generation) "New Radio" (NR), for example, base stations can transmit downlink reference signals for positioning, such as Positioning Reference Signals (PRS). Auxiliary data is transmitted to the UE to assist in acquiring and measuring the signals, and in some implementations, is used to calculate the location estimate from the measurements. The UE can acquire PRS transmitted from different base stations and perform positioning measurements, such as Reference Signal Time Difference (RSTD), Reference Signal Received Power (RSRP), and Receive-Transmit (RX-TX) time difference measurements, which can be used in various positioning methods such as Time Difference of Arrival (TDOA), Angle of Departure (AOD), and Multi-Cell Round-Trip Time (RTT). The UE can use various positioning methods to calculate an estimate of its own location, or it can transmit the positioning measurements to a network entity (e.g., a location server) that can calculate the UE's location based on the positioning measurements. Efficiency needs to be improved, for example, in terms of power consumption and complexity. Summary of the Invention

[0005] The silence configuration for the downlink Positioning Reference Signal (PRS) is based on the slot type in which the PRS is transmitted. If the PRS is transmitted in a full-duplex slot (such as an in-band full-duplex slot), the slot type silence configuration silences the PRS. If the PRS is transmitted in a sub-band full-duplex slot, the PRS may be silenced depending on whether the base station is capable of self-interference cancellation. The slot type silence configuration does not silence the PRS transmitted in half-duplex slots. The slot type silence configuration can be dynamic and can be provided to the User Equipment (UE) in lower-layer signaling to improve latency. The slot type silence configuration can be combined with other types of silence configurations such as inter-instance silence, intra-instance silence, and intra-slot silence (e.g., using logical functions to combine these configurations).

[0006] In one implementation, a method for supporting UE positioning, performed by a base station serving a user equipment (UE) in a wireless network, includes: receiving a schedule of positioning reference signals (PRS) to be transmitted in a plurality of time slots, wherein the plurality of time slots have time slot types including full-duplex time slots in which downlink transmission and uplink reception occur simultaneously and half-duplex time slots in which downlink transmission and uplink reception do not occur simultaneously; obtaining a silent configuration for the PRS in the plurality of time slots, wherein the silent configuration is at least partially based on the time slot type; and transmitting the silent configuration to the UE.

[0007] In one implementation, a base station configured to support the positioning of a user equipment (UE) in a wireless network includes: an external interface configured to communicate with an entity in the wireless network; at least one memory; and at least one processor coupled to the external interface and the memory, wherein the at least one processor is configured to: receive a schedule of Positioning Reference Signals (PRS) to be transmitted in a plurality of time slots, wherein the plurality of time slots have time slot types including full-duplex time slots in which downlink transmission and uplink reception occur simultaneously and half-duplex time slots in which downlink transmission and uplink reception do not occur simultaneously; obtain a silent configuration for the PRS in the plurality of time slots, wherein the silent configuration is at least partially based on the time slot type; and transmit the silent configuration to the UE.

[0008] In one implementation, a base station configured to support the positioning of a user equipment (UE) in a wireless network includes: components for receiving a scheduling of positioning reference signals (PRS) to be transmitted in multiple time slots, wherein the multiple time slots have time slot types including full-duplex time slots in which downlink transmission and uplink reception occur simultaneously and half-duplex time slots in which downlink transmission and uplink reception do not occur simultaneously; components for obtaining a silent configuration for the PRS in the multiple time slots, wherein the silent configuration is at least partially based on the time slot type; and components for transmitting the silent configuration to the UE.

[0009] In one implementation, a non-transitory storage medium includes program code stored thereon, operable to configure at least one processor in a base station to support the location of a user equipment (UE) in a wireless network. The program code includes instructions for: receiving a schedule of location reference signals (PRS) to be transmitted in multiple time slots, wherein the multiple time slots have time slot types including full-duplex time slots where downlink transmission and uplink reception occur simultaneously and half-duplex time slots where downlink transmission and uplink reception do not occur simultaneously; obtaining a silent configuration for the PRS in the multiple time slots, wherein the silent configuration is at least partially based on the time slot type; and transmitting the silent configuration to the UE.

[0010] In one implementation, a method for supporting the location of a user equipment (UE) in a wireless network, performed by a location server, includes: generating a schedule for location reference signals (PRS) to be transmitted by a base station in multiple time slots, wherein the multiple time slots have time slot types including full-duplex time slots in which downlink transmission and uplink reception occur simultaneously and half-duplex time slots in which downlink transmission and uplink reception do not occur simultaneously; generating a silent configuration for the PRS in the multiple time slots for the base station, wherein the silent configuration is at least partially based on the time slot type; transmitting the silent configuration to the base station; and transmitting the silent configuration to the UE.

[0011] In one implementation, a location server configured to support the positioning of a user equipment (UE) in a wireless network includes: an external interface configured to communicate with an entity in the wireless network; at least one memory; and at least one processor coupled to the external interface and the memory, wherein the at least one processor is configured to: generate a schedule for a location reference signal (PRS) to be transmitted by a base station in a plurality of time slots, wherein the plurality of time slots have time slot types including full-duplex time slots in which downlink transmission and uplink reception occur simultaneously and half-duplex time slots in which downlink transmission and uplink reception do not occur simultaneously; generate a silent configuration for the PRS in the plurality of time slots for the base station, wherein the silent configuration is at least partially based on the time slot type; transmit the silent configuration to the base station; and transmit the silent configuration to the UE.

[0012] In one implementation, a location server configured to support the positioning of a user equipment (UE) in a wireless network includes: components for generating a scheduling of positioning reference signals (PRS) to be transmitted by a base station in multiple time slots, wherein the multiple time slots have time slot types including full-duplex time slots in which downlink transmission and uplink reception occur simultaneously and half-duplex time slots in which downlink transmission and uplink reception do not occur simultaneously; components for generating a silent configuration for the PRS in the multiple time slots for the base station, wherein the silent configuration is at least partially based on the time slot type; components for transmitting the silent configuration to the base station; and components for transmitting the silent configuration to the UE.

[0013] In one implementation, a non-transitory storage medium includes program code stored thereon, operable to configure at least one processor in a location server to support the location of a user equipment (UE) in a wireless network. The program code includes instructions for: generating a schedule of Location Reference Signals (PRS) to be transmitted by a base station in multiple time slots, wherein the multiple time slots have time slot types including full-duplex time slots where downlink transmission and uplink reception occur simultaneously and half-duplex time slots where downlink transmission and uplink reception do not occur simultaneously; generating a silent configuration for the PRS in the multiple time slots for the base station, wherein the silent configuration is at least partially based on the time slot type; transmitting the silent configuration to the base station; and transmitting the silent configuration to the UE.

[0014] In one implementation, a method for supporting UE positioning, performed by a user equipment (UE) in a wireless network, includes: receiving a schedule for a positioning reference signal (PRS) to be transmitted by a base station in a plurality of time slots, wherein the plurality of time slots have time slot types including full-duplex time slots in which downlink transmission and uplink reception by the base station occur simultaneously and half-duplex time slots in which downlink transmission and uplink reception by the base station do not occur simultaneously; receiving a silent configuration for the PRS in the plurality of time slots, wherein the silent configuration is at least partially based on the time slot type; and receiving the PRS from the base station using the silent configuration.

[0015] In one implementation, a UE configured to support the location of a user equipment (UE) in a wireless network includes: a radio transceiver configured to wirelessly communicate with entities in the wireless network; at least one memory; and at least one processor coupled to the radio transceiver and the memory, wherein the at least one processor is configured to: receive a schedule of location reference signals (PRS) to be transmitted by a base station in a plurality of time slots, wherein the plurality of time slots have time slot types including full-duplex time slots in which downlink transmission and uplink reception by the base station occur simultaneously and half-duplex time slots in which downlink transmission and uplink reception by the base station do not occur simultaneously; receive a silent configuration for the PRS in the plurality of time slots, wherein the silent configuration is at least partially based on the time slot type; and receive the PRS from the base station using the silent configuration.

[0016] In one implementation, a user equipment (UE) in a wireless network is configured to support UE positioning, comprising: means for receiving a scheduling of positioning reference signals (PRS) to be transmitted by a base station in a plurality of time slots, wherein the plurality of time slots have time slot types including full-duplex time slots in which downlink transmission and uplink reception by the base station occur simultaneously and half-duplex time slots in which downlink transmission and uplink reception by the base station do not occur simultaneously; means for receiving a silent configuration for the PRS in the plurality of time slots, wherein the silent configuration is at least partially based on the time slot type; and means for receiving the PRS from the base station using the silent configuration.

[0017] In one implementation, a non-transitory storage medium includes program code stored thereon, operable to configure at least one processor in a user equipment (UE) for supporting UE positioning in a wireless network. The program code includes instructions for: receiving a schedule for a positioning reference signal (PRS) to be transmitted by a base station in multiple time slots, wherein the multiple time slots have time slot types including full-duplex time slots where downlink transmission and uplink reception by the base station occur simultaneously, and half-duplex time slots where downlink transmission and uplink reception by the base station do not occur simultaneously; receiving a silent configuration for the PRS in the multiple time slots, wherein the silent configuration is at least partially based on the time slot type; and using the silent configuration to receive the PRS from the base station.

[0018] Based on the accompanying drawings and detailed description, other objects and advantages associated with the aspects disclosed herein will be apparent to those skilled in the art. Attached Figure Description

[0019] The accompanying drawings are provided to help describe various aspects of this disclosure, and are provided for illustrative purposes only and not to limit them.

[0020] Figure 1A An exemplary wireless communication system according to various aspects of this disclosure is illustrated.

[0021] Figure 1B The diagram shows the architecture of an NG-RAN node, which includes a gNB central unit, gNB distributed units, and gNB remote units.

[0022] Figure 2A and 2B An example wireless network architecture according to various aspects of this disclosure is illustrated.

[0023] Figure 3 The diagram illustrates a block diagram of a base station and a user equipment (UE) design, which can be... Figure 1A One of the base stations and one of the UEs.

[0024] Figure 4 The structure of an exemplary subframe sequence of a Positioning Reference Signal (PRS) is shown.

[0025] Figure 5 The illustration shows a UE capable of receiving auxiliary data including PRS silent configuration based on time slot type.

[0026] Figure 6 An example of a base station capable of providing auxiliary data including PRS silent configuration based on time slot type is shown.

[0027] Figure 7A server capable of providing auxiliary data, including PRS silent configuration based on time slot type, is shown.

[0028] Figure 8 The diagram illustrates various possible modes of DL PRS resources within a time slot.

[0029] Figure 9 This illustration shows an example of an instance of a PRS resource set.

[0030] Figure 10 Another example of an instance of a PRS resource set is illustrated.

[0031] Figure 11 The illustration shows an example of silent PRS configuration between instances.

[0032] Figure 12 The illustration shows an example of a silent PRS configuration within an instance.

[0033] Figure 13 The diagram illustrates two instances of a PRS resource set with inter-instance PRS silent configuration and intra-instance PRS silent configuration.

[0034] Figure 14A and Figure 14B The illustration shows an example of in-band full-duplex (IBFD) communication, in which the same frequency resources are used to simultaneously transmit and receive downlink and uplink signals.

[0035] Figure 15 The illustration shows an example of subband full-duplex (SBFD) communication that uses different frequency resources to simultaneously transmit and receive downlink and uplink signals.

[0036] Figure 16 The diagram illustrates half-duplex communication in which downlink and uplink signals are sent and received at different times.

[0037] Figure 17 The illustration shows an environment including multiple base stations and UEs, where the base stations are subject to self-interference when operating in full-duplex mode.

[0038] Figure 18 The illustration shows an environment including multiple base stations and UEs, where the UEs are subject to self-interference when operating in full-duplex mode.

[0039] Figure 19A The diagram illustrates a base station communicating with multiple UEs.

[0040] Figure 19B The diagram illustrates the data from half-duplex and full-duplex time slots. Figure 19A Examples of uplink and downlink signals transmitted between the base station and the UE.

[0041] Figure 19CThe diagram illustrates the data from half-duplex and full-duplex time slots. Figure 19A Examples of DL PRS and uplink signals transmitted between the base station and the UE.

[0042] Figure 20 The illustration shows two instances of a PRS resource set with slot-type PRS silent configuration, inter-instance PRS silent configuration, and intra-instance PRS silent configuration.

[0043] Figure 21 The illustration shows an example of PRS silence within a time slot.

[0044] Figure 22 The illustration shows another example of PRS silence within a time slot.

[0045] Figure 23 The diagram illustrates two instances of a PRS resource set with slot-type PRS silent configuration, inter-slot PRS silent configuration, inter-instance PRS silent configuration, and intra-instance PRS silent configuration.

[0046] Figure 24 This diagram illustrates the message flow used for positioning of UEs that support PRS silence using slot type.

[0047] Figure 25 A flowchart is shown of an exemplary method performed by a base station to support the location of a UE in a wireless network.

[0048] Figure 26 A flowchart illustrating an exemplary method performed by a location server to support the location of a UE in a wireless network is shown.

[0049] Figure 27 A flowchart is shown of an exemplary method executed by the UE to support the location of the UE in a wireless network. Detailed Implementation

[0050] Various aspects of this disclosure are provided in the following description of various examples provided for illustrative purposes and in the accompanying drawings. Alternative aspects may be conceived without departing from the scope of this disclosure. Furthermore, well-known elements of this disclosure will not be described in detail or will be omitted so as not to obscure further relevant details of this disclosure.

[0051] The terms “exemplary” and / or “example” are used herein to mean “serving as an example, instance, or illustration.” Any aspect described herein as “exemplary” and / or “example” is not necessarily to be construed as preferred or advantageous over other aspects. Similarly, the term “aspects of this disclosure” does not require that all aspects of this disclosure include the features, advantages, or modes of operation discussed.

[0052] Those skilled in the art will understand that any of a variety of different technologies and processes can be used to represent the information and signals described below. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout this specification can be represented by voltage, current, electromagnetic waves, magnetic fields or particles, light fields or particles, or any combination thereof, depending in part on the specific application, in part on the required design, and in part on the corresponding technology, etc.

[0053] Furthermore, many aspects are described according to a sequence of actions to be performed by elements of, for example, a computing device. It should be understood that the various actions described herein can be performed by specific circuitry (e.g., an application-specific integrated circuit (ASIC)), by program instructions executable by one or more processors, or by a combination of both. Additionally, the sequences of actions described herein can be considered entirely embodied in any form of non-transitory computer-readable storage medium storing a corresponding set of computer instructions that, when executed, can cause or instruct the associated processor of the device to perform the functions described herein. Therefore, various aspects of this disclosure can be embodied in many different forms, all of which are contemplated to be within the scope of the claimed subject matter. Furthermore, for each aspect described herein, the corresponding form of any such aspect can be described in this application as, for example, "logic" "configured" to perform the described actions.

[0054] As used herein, unless otherwise stated, the terms “User Equipment” (UE) and “Base Station” are not intended to be specifically or otherwise limited to any particular Radio Access Technology (RAT). Generally, a UE can be any wireless communication device used by a user to communicate over a wireless communication network (e.g., mobile phone, router, tablet computer, laptop computer, tracking device, wearable device (e.g., smartwatch, glasses, augmented reality (AR) / virtual reality (VR) headset, etc.), vehicle (e.g., car, motorcycle, bicycle, etc.), Internet of Things (IoT) device, etc.). A UE can be mobile or may (e.g., at certain times) be stationary and can communicate with a Radio Access Network (RAN). As used herein, the term “UE” can be interchangeably referred to as “Access Terminal” or “AT”, “Client Equipment”, “Wireless Equipment”, “Subscriber Equipment”, “Subscriber Terminal”, “Subscriber Station”, “User Terminal” or “UT”, “Mobile Terminal”, “Mobile Station”, “Mobile Equipment”, or variations thereof. Generally, a UE can communicate with a core network via the RAN, and through the core network, a UE can connect to external networks such as the Internet and to other UEs. Of course, other connection mechanisms to the core network and / or the Internet are also possible for the UE, such as via wired access networks, wireless local area network (WLAN) networks (e.g., based on IEEE 802.11, etc.), etc.

[0055] A base station, transmission point, or transmit / receive point (TRP) can operate according to one of several RATs communicating with the UE, depending on the network in which it is deployed, and the base station may alternatively be referred to as an access point (AP), network node, Node B, evolved Node B (eNB), New Radio (NR) Node B (also referred to as gNB or gNodeB), etc. Additionally, in some systems, the base station may provide purely edge node signaling functions, while in others, it may provide additional control and / or network management functions. The communication link through which the UE transmits signals to the base station is referred to as an uplink (UL) channel (e.g., reverse traffic channel, reverse control channel, access channel, etc.). The communication link through which the base station transmits signals to the UE is referred to as a downlink (DL) or forward link channel (e.g., paging channel, control channel, broadcast channel, forward traffic channel, etc.). As used herein, the term traffic channel (TCH) may refer to either the UL / reverse or DL / forward traffic channel.

[0056] The term "base station" can refer to a single physical transmission point or multiple physical transmission points that may or may not be co-located. For example, when the term "base station" refers to a single physical transmission point, the physical transmission point can be the antenna of a base station corresponding to a cell of the base station. When the term "base station" refers to multiple co-located physical transmission points, the physical transmission point can be the antenna array of the base station (e.g., an antenna array as in a multiple-input multiple-output (MIMO) system or where the base station employs beamforming). When the term "base station" refers to multiple non-co-located physical transmission points, the physical transmission points can be a distributed antenna system (DAS) (a network of spatially separated antennas connected to a common source via a transmission medium) or a remote radio head (RRH) (a remote base station connected to a serving base station). Alternatively, non-co-located physical transmission points can be the serving base station from which the UE receives measurement reports and neighboring base stations where the UE is measuring its reference radio frequency (RF) signal.

[0057] To support UE positioning, two main categories of positioning solutions are defined: control plane and user plane. Control plane (CP) positioning allows positioning-related signaling and support to be carried over existing network (and UE) interfaces using existing protocols dedicated to signaling transmission. User plane (UP) positioning allows positioning-related and support signaling to be carried as part of other data using protocols such as Internet Protocol (IP), Transmission Control Protocol (TCP), and User Datagram Protocol (UDP).

[0058] The 3rd Generation Partnership Project (3GPP) has defined control plane positioning solutions for UEs using radio access based on Global System for Mobile Communications (GSM) (2G), Universal Mobile Telecommunications System (UMTS) (3G), LTE (4G), and New Radio (NR) for 5G. These solutions are defined in 3GPP Technical Specifications (TS) 23.271 and 23.273 (common parts), 43.059 (GSM access), 25.305 (UMTS access), 36.305 (LTE access), and 38.305 (NR access). The Open Mobility Alliance (OMA) has similarly defined an up-plane positioning solution called Secure Subscriber Plane Positioning (SUPL), which can be used to locate UEs accessing any of the many radio interfaces that support IP packet access, such as Universal Packet Radio Service (GPRS) using GSM, GPRS using UMTS, or IP access using LTE or NR.

[0059] Both CP and UP positioning solutions can use a location server to support positioning. The location server can be part of or accessible from the UE's serving or home network, or simply accessible via the Internet or local intranet. If positioning of the UE is required, the location server can initiate a session with the UE (e.g., a location session or SUPL session) and coordinate the determination of the UE's location measurements and estimated location. During the location session, the location server can request positioning capabilities from the UE (or the UE can provide them to the location server without request), can provide auxiliary data to the UE (e.g., if requested by the UE or without request), and can request from the UE location estimates or measurements for various positioning techniques (e.g., for Global Navigation Satellite System (GNSS), Time Difference of Arrival (TDOA), Angle of Departure (AOD), Round Trip Time (RTT), and Multi-Cell RTT (Multi-RTT), and / or Enhanced Cell ID (ECID) positioning methods). The UE can use auxiliary data to acquire and measure GNSS and / or reference signals such as positioning reference signals (PRS) (e.g., by providing information such as frequency, expected time of arrival, signal coding, and expected characteristics of the signal Doppler).

[0060] In UE-based operating modes, the UE may also or alternatively use auxiliary data to help determine the location estimate from the obtained location measurements (e.g., if the auxiliary data provides satellite ephemeris data in the case of GNSS positioning, or provides base station location and other base station characteristics such as PRS timing in the case of terrestrial positioning such as TDOA, AOD, multi-RTT, etc).

[0061] In UE-assisted operation mode, the UE can return location measurements to the location server, which can determine the UE's estimated location based on these measurements and possibly other known or configured data (e.g., satellite ephemeris data for GNSS location, or base station location and possible PRS timing base station characteristics in the case of terrestrial positioning such as TDOA, AOD, multi-RTT, etc.).

[0062] In another standalone operating mode, the UE can perform location-related measurements without any positioning assistance data from the location server, and can further calculate the location or changes in location without any positioning assistance data from the location server. Positioning methods that can be used in standalone mode include GPS and GNSS (e.g., if the UE obtains satellite orbit data from data broadcast by the GPS and GNSS satellites themselves) and sensors.

[0063] In the case of 3GPP CP positioning, the location server can be an Enhanced Serving Mobile Location Center (E-SMLC) for LTE access, a Standalone SMLC (SAS) for UMTS access, a Serving Mobile Location Center (SMLC) for GSM access, or a Location Management Function (LMF) for 5G NR access. In the case of OMASUPL positioning, the location server can be a SUPL Positioning Platform (SLP), which can act as any of the following: (i) a Home SLP (H-SLP), if in or associated with the UE's home network, or if a permanent subscription for location services is provided to the UE; (ii) a Discovery SLP (D-SLP), if in or associated with another (non-home) network, or if not associated with any network; (iii) an Emergency SLP (E-SLP), if it supports positioning for emergency calls initiated by the UE; or (iv) an Access SLP (V-SLP), if in or associated with the UE's serving network or current local area.

[0064] During a location session, the location server and the UE can exchange messages defined according to several location protocols to coordinate the determination of estimated location. Possible location protocols may include, for example, the LTE Location Protocol (LPP) defined by 3GPP in 3GPP TS 36.355 and the LPP Extensions (LPPe) protocols defined by OMA in OMATS OMA-TS-LPPe-V1_0, OMA-TS-LPPe-V1_1, and OMA-TS-LPPe-V2_0. LPP and LPPe protocols can be used in combination, where an LPP message contains an embedded LPPe message. The combined LPP and LPPe protocols can be referred to as LPP / LPPe. LPP and LPP / LPPe can be used to help support 3GPP control plane solutions for LTE or NR access, in which case LPP or LPP / LPPe messages are exchanged between the UE and the E-SMLC or between the UE and the LMF. LPP or LPPe messages can be exchanged between the UE and the E-SMLC via the Serving Mobility Management Entity (MME) and the serving eNodeB for the UE. LPP or LPP / LPPe messages can also be exchanged between the UE and the LMF via the Serving Access and Mobility Management Function (AMF) for the UE and the Serving NR Node B (gNB). LPP and LPP / LPPe can also be used to help support OMA SUPL solutions for many types of radio access (such as LTE, NR, and WiFi) that support IP messaging, where LPP or LPP / LPPe messages are exchanged between the SUPL-enabled terminal (SET) (SET is the term for a UE with SUPL) and the SLP, and can be transmitted within SUPL messages such as SUPL POS or SUPL POS INIT messages.

[0065] Location servers and base stations (e.g., eNodeBs for LTE access) can exchange messages to enable the location server to (i) obtain location measurements of a specific UE from the base station, or (ii) obtain location information unrelated to a specific UE from the base station, such as the location coordinates of the base station's antennas, the cells supported by the base station (e.g., cell identity), parameters for cell timing of the base station, and / or parameters of signals transmitted by the base station (such as PRS signals). In the case of LTE access, the LPP A (LPPa) protocol can be used to transmit such messages between the base station acting as an eNodeB and the location server acting as an E-SMLC. In the case of NR access, the NRPPA protocol can be used to transmit such messages between the base station acting as a gNodeB and the location server acting as an LMF. Note that the terms "parameters" and "information element" (IE) are synonymous and can be used interchangeably herein.

[0066] During positioning using signaling in LTE and 5G NR, the UE typically acquires a dedicated positioning reference signal (e.g., PRS) transmitted by the base station, which is used to generate desired measurements for the supported positioning technologies. The Positioning Reference Signal (PRS) is defined for 5G NR positioning to enable the UE to detect and measure more neighboring base stations or transmit-receive points (TRPs). Multiple configurations are supported to enable various deployments (indoor, outdoor, sub-6, millimeter wave (mmW)). Beam scanning is also additionally supported for PRS beaming operation. Table 1 below shows the 3GPP version numbers (e.g., version 16 or version 15) that define the specific reference signals used for various UE measurements and accompanying positioning technologies.

[0067]

[0068]

[0069] Table 1

[0070] In 5G NR, base stations (i.e., gNBs) can transmit PRS resources using beamforming. In other words, gNBs can use beamforming to transmit PRS resources in specific directions. A PRS resource set is a collection of PRS resources used for the transmission of PRS signals. PRS resources can be repeated within a single instance of a PRS resource set. When transmitting PRS resources, base stations can operate in both frequency division duplex (FDD) and time division duplex modes, for example, transmitting PRS resources on multiple symbols and carrier frequencies to prevent overlap. Generally, PRS resources are transmitted at constant power, but PRS resources can also be transmitted at zero power (i.e., silent) to prevent overlap with other cells. Silence of periodically scheduled PRS resource transmission can be useful when PRS signals from different cells overlap by occurring at the same or nearly the same time. In this case, PRS signals from some cells can be silenced, while PRS signals from other cells are transmitted (e.g., at constant power). Silent configuration includes silencing all PRS resources within a selected PRS resource set instance (sometimes referred to as inter-instance silent) or selectively repeating silent of PRS resources within a PRS resource set instance (sometimes referred to as intra-instance silent). Auxiliary data, including PRS configuration information and silent information, can be provided to the UE to assist in measuring PRS resources.

[0071] Base stations can use full-duplex communication to transmit downlink signals and receive uplink signals. For example, a base station can use full-duplex communication, where DL (Deep Link) and UL (Ultra-Low Link) resources share the same time and frequency resources. For instance, the base station transmits and receives on the same time and frequency resources (called in-band full-duplex), or DL ​​and UL resources are transmitted at the same time but on different frequency resources (sub-band full-duplex). The base station can also transmit DL resources and receive UL resources on different times and different frequency resources (half-duplex). Therefore, DL PRS can be scheduled to be transmitted by the base station in full-duplex or half-duplex time slots. However, DL PRS resources transmitted in full-duplex time slots (especially in-band full-duplex) may cause self-interference with UL signal reception.

[0072] Therefore, as described herein, silencing configurations can be used to silence PRS resources based on the time slot type in which the PRS resources are scheduled. For example, PRS resources can be silenced in an in-band full-duplex time slot, where DL transmission and UL reception occur simultaneously at the same frequency resources. If the PRS resources are scheduled in a sub-band full-duplex time slot, the PRS resources can be silenced depending on the base station's capabilities; for example, if the base station cannot perform self-interference cancellation on UL signals received simultaneously with the transmission of the PRS resources, the PRS resources can be silenced.

[0073] Silent configuration can be provided to the UE using lower-layer signaling. For example, the current silent configuration can be provided in a higher-layer message, such as using an LPP auxiliary data message. In some implementations, silent configuration can be provided at a lower layer to achieve low-latency configuration.

[0074] Slot-based PRS silencing can be combined with other types of silencing configurations, such as inter-instance silencing or intra-instance silencing. For example, logical functions (such as AND logical functions) can be used to combine silencing configurations. In some implementations, other types of silencing, such as intra-slot silencing, can be used additionally or alternatively, where selected symbols of the PRS resource can be silenced.

[0075] Figure 1A An exemplary wireless communication network 100 is illustrated. The wireless communication system 100 (also referred to as a wireless wide area network (WWAN)) may include various network nodes, including base stations and UEs. Base station 102 (sometimes referred to as TRP 102) may include macro cell base stations (high-power cellular base stations) and / or small cell base stations (low-power cellular base stations). In one aspect, a macro cell base station may include an eNB in ​​which the wireless communication system 100 corresponds to an LTE network, or a gNB in ​​which the wireless communication system 100 corresponds to a 5G network, or a combination thereof, and a small cell base station may include femtocells, picocells, microcells, etc.

[0076] Base stations 102 can collectively form a RAN and interface with a core network 170 (e.g., an evolved packet core (EPC) or next-generation core (NGC)) via backhaul link 122, and interface with one or more location servers 172 via the core network 170. Among other functions, base stations 102 can also perform functions related to one or more of the following: transmitting user data, radio channel encryption and decryption, integrity protection, header compression, mobility control functions (e.g., handover, dual connectivity), inter-cell interference coordination, connection establishment and release, load balancing, distribution of non-access stratum (NAS) messages, NAS node selection, synchronization, RAN sharing, multimedia broadcast multicast service (MBMS), user and device tracking, RAN information management (RIM), paging, location, and delivery of warning messages. Base stations 102 can communicate with each other directly or indirectly (e.g., via EPC / NGC) via backhaul link 134, which can be wired or wireless.

[0077] Base station 102 can wirelessly communicate with UE 104. Each base station 102 can provide communication coverage for a corresponding geographic coverage area 110. In one aspect, base station 102 can support one or more cells in each coverage area 110. A “cell” is a logical communication entity used to communicate with a base station (e.g., on certain frequency resources referred to as carrier frequency, component carrier, carrier, frequency band, etc.) and can be associated with an identifier (e.g., Physical Cell Identifier (PCID), Virtual Cell Identifier (VCID)) used to distinguish cells operating via the same or different carrier frequencies. In some cases, different cells can be configured according to different protocol types (e.g., Machine Type Communication (MTC), Narrowband IoT (NB-IoT), Enhanced Mobile Broadband (eMBB), or others), which can provide access for different types of UEs. In some cases, the term “cell” can also refer to a geographic coverage area (e.g., a sector) of a base station, as long as the carrier frequency can be detected and used for communication within certain portions of the geographic coverage area 110.

[0078] While the geographic coverage areas 110 of adjacent macro cell base stations 102 may partially overlap (e.g., in handover areas), some geographic coverage areas 110 may substantially overlap with larger geographic coverage areas 110. For example, a small cell base station 102' may have a coverage area 110' substantially the same as the coverage areas 110 of one or more macro cell base stations 102. A network that includes both small and macro cell base stations can be referred to as a heterogeneous network. A heterogeneous network may also include home eNBs (HeNBs) that can provide service to restricted groups referred to as Closed Subscriber Groups (CSGs).

[0079] The communication link 120 between base station 102 and UE 104 may include UL (also known as reverse link) transmission from UE 104 to base station 102 and / or downlink (DL) (also known as forward link) transmission from base station 102 to UE 104. The communication link 120 may use MIMO antenna technologies, including spatial multiplexing, beamforming, and / or transmit diversity. The communication link 120 may use one or more carrier frequencies. Carrier allocation relative to DL and UL may be asymmetric (e.g., more or fewer carriers may be allocated to DL than to UL).

[0080] The wireless communication system 100 may also include a wireless local area network (WLAN) access point (AP) 150, which communicates with a WLAN station (STA) 152 in unlicensed spectrum (e.g., 5 GHz) via a communication link 154. When communicating in unlicensed spectrum, the WLAN STA 152 and / or the WLAN AP 150 may perform a free channel assessment (CCA) before communication to determine whether the channel is available.

[0081] Small cell base station 102' can operate in licensed and / or unlicensed spectrum. When operating in unlicensed spectrum, small cell base station 102' can employ LTE or 5G technology and use the same 5GHz unlicensed spectrum as WLAN AP 150. Using LTE / 5G in unlicensed spectrum can enhance the coverage of the access network and / or increase its capacity. LTE in unlicensed spectrum can be referred to as unlicensed LTE (LTE-U), licensed assisted access (LAA), or MulteFire.

[0082] The wireless communication system 100 may also include a millimeter-wave (mmW) base station 180, which can operate at mmW and / or near-mmW frequencies to communicate with the UE 182. Extremely high frequency (EHF) is a portion of the electromagnetic spectrum that contains radio frequency (RF). EHF frequencies range from 30 GHz to 300 GHz, with wavelengths from 1 mm to 10 mm. Radio waves in this band can be referred to as millimeter waves. Near-mmW extends down to frequencies of 3 GHz and wavelengths of 100 mm. Ultra-high frequency (SHF) bands extend between 3 GHz and 30 GHz and are also referred to as centimeter waves. Communication using mmW / near-mmW radio bands has high path loss and relatively short range. The mmW base station 180 and the UE 182 can utilize beamforming (transmit and / or receive) on the mmW communication link 184 to compensate for the extremely high path loss and short range. Furthermore, it should be understood that in alternative configurations, one or more base stations 102 may also transmit using mmW or near-mmW frequencies with beamforming. Therefore, it should be understood that the foregoing illustrations are merely examples and should not be construed as limiting the aspects disclosed herein.

[0083] Transmit beamforming is a technique that focuses an RF signal in a specific direction. Traditionally, when a network node (e.g., a base station) broadcasts an RF signal, it broadcasts the signal in all directions (omnidirectional). Using transmit beamforming, the network node determines where a given target device (e.g., a UE) is located (relative to the transmitting network node) and projects a stronger downlink RF signal in that specific direction, thus providing the receiving device with a faster (in terms of data rate) and stronger RF signal. To change the directivity of the RF signal during transmission, the network node can control the phase and relative amplitude of the RF signal at each of one or more transmitters broadcasting the RF signal. For example, the network node can use an antenna array (called a "phased array" or "antenna array") that creates an RF beam that can be "manipulated" to point in different directions without actually moving the antennas. Specifically, RF currents from the transmitters are fed to the individual antennas with the correct phase relationship, such that radio waves from the individual antennas are added together to increase radiation in the desired direction while canceling out radiation in unwanted directions.

[0084] In receive beamforming, a receiver uses a receive beam to amplify an RF signal detected on a given channel. For example, the receiver may increase the gain setting and / or adjust the phase setting of the antenna array in a specific direction to amplify (e.g., increase the gain level) the RF signal received from that direction. Therefore, when a receiver is considered to be beamforming in a certain direction, it means that the beam gain in that direction is high relative to the beam gain along other directions, or that the beam gain in that direction is the highest relative to all other receive beams available to the receiver in that direction. This results in a stronger received signal strength (e.g., reference signal received power (RSRP), reference signal received quality (RSRQ), signal-to-interference-noise ratio (SINR), etc.) of the RF signal received from that direction.

[0085] In 5G, the spectrum in which radio nodes (e.g., base stations 102 / 180, UE 104 / 182) operate is divided into multiple frequency ranges: FR1 (from 450 to 6000 MHz), FR2 (from 24250 to 52600 MHz), FR3 (above 52600 MHz), and FR4 (between FR1 and FR2). In multi-carrier systems such as 5G, one of the carrier frequencies is called the “primary carrier” or “anchor carrier” or “primary serving cell” or “PCell,” while the remaining carrier frequencies are called “secondary carriers” or “secondary serving cells” or “SCell.” In carrier aggregation, the anchor carrier is the carrier operating on the primary frequency (e.g., FR1) used by UE 104 / 182 and the cell in which UE 104 / 182 performs the initial radio resource control (RRC) connection establishment procedure or initiates the RRC connection re-establishment procedure. The primary carrier carries all common and UE-specific control channels. A secondary carrier is a carrier operating on a second frequency (e.g., FR2). Once an RRC connection is established between UE 104 and the anchor carrier, the secondary carrier can be configured and used to provide additional radio resources. The secondary carrier may contain only the necessary signaling information, and since the primary uplink and downlink carriers are typically UE-specific, UE-specific signals may not be present in the secondary carrier. This means that different UEs 104 / 182 within a cell can have different downlink primary carriers. The same applies to the uplink primary carrier. The network can change the primary carrier of any UE 104 / 182 at any time. This is done, for example, to balance the load on different carriers. Because a “serving cell” (whether PCell or SCell) corresponds to the carrier frequency / component carrier on which a base station communicates, the terms “cell,” “serving cell,” “component carrier,” and “carrier frequency” are used interchangeably.

[0086] For example, still refer to Figure 1A One of the frequencies used by the macro cell base station 102 can be an anchor carrier (or "PCell"), and other frequencies used by the macro cell base station 102 and / or the mmW base station 180 can be secondary carriers ("SCell"). Simultaneous transmission and / or reception on multiple carriers allows the UE 104 / 182 to significantly increase its data transmission and / or reception rates. For example, compared to the data rate achieved by a single 20MHz carrier, the aggregation of two 20MHz carriers in a multi-carrier system theoretically results in a doubling of the data rate (i.e., 40MHz).

[0087] The wireless communication system 100 may also include one or more UEs, such as UE 186, indirectly connected to one or more communication networks via one or more device-to-device (D2D) peer-to-peer (P2P) links. Figure 1AIn the example, UE 186 has a D2D P2P link 192 with one of UEs 104 connected to one of base stations 102 (e.g., UE 186 can indirectly obtain cellular connectivity through this link), and a D2D P2P link 194 with a WLAN STA 152 connected to a WLAN AP 150 (UE 186 can indirectly obtain WLAN-based internet connectivity through this link). In the example, D2D P2P links 192 and 194 can be connected via any known D2D RAT (such as LTE Direct (LTE-D), WiFi Direct (WiFi-D), Bluetooth). (etc.) to support.

[0088] The wireless communication system 100 may also include a UE 104, which can communicate with the macro cell base station 102 on the communication link 120 and / or with the mmW base station 180 on the mmW communication link 184. For example, the macro cell base station 102 may support PCells and one or more SCells for the UE 104, and the mmW base station 180 may support one or more SCells for the UE 104.

[0089] Figure 1B It shows that it can be used Figure 1A An architectural diagram of NG-RAN node 190 within NG-RAN, for example, as a standalone entity or as part of another gNB. Depending on one implementation, NG-RAN node 190 could be gNB 102. For example, Figure 1B The architecture shown can be applied to Figure 1A Any gNB 102.

[0090] As shown in the figure, gNB 102 may include a gNB Central Unit (gNB-CU) 192, a gNB Distributed Unit (gNB-DU) 194, and a gNB Remote Unit (gNB-RU) 196, which may be physically located within gNB 102 or physically separated. gNB-CU 192 is a logical or physical node that hosts support for and controls the operation of one or more gNB-DUs and / or gNB-RUs using the gNB 102 on the NR Uu air interface. gNB-CU 192 terminates the F1 interface connected to the gNB-DU and, in some implementations, terminates the F1 interface connected to the gNB-RU. As shown in the figure, gNB-CU 192 can communicate with the AMF via the NG interface. gNB-CU 192 can also communicate with one or more other gNB 102s via the Xn interface. gNB-DU 194 is a logical or physical node that hosts support for the Radio Link Control (RLC), Medium Access Control (MAC), and Physical (PHY) protocol layers used on the NR Uu air interface of gNB102, and its operation is partially controlled by gNB-CU 192. gNB-DU terminates the F1 interface connected to gNB-CU 192 and can also terminate the lower-layer split-point interface Fx of gNB-RU. gNB-RU 196 can be split based on lower-layer functions and is a logical or physical node that hosts support for lower-layer functions such as the PHY and Radio Frequency (RF) protocol layers used on the NR Uu air interface of gNB 102, the operation of which is partially controlled by gNB-CU 192 and / or gNB-DU 194. gNB-RU 196 terminates the Fx interface connected to gNB-DU 194 and, in some implementations, can terminate the F1 interface connected to gNB-CU 192.

[0091] gNB-CU 192 requests positioning measurements (e.g., E-CID) from gNB-DU 194 and / or gNB-RU 196. gNB-DU 194 and / or gNB-RU 196 can report the measurement results back to gNB-CU 192. gNB-DU 194 or gNB-RU 196 may include positioning measurement functionality. It should be understood that individual measurement nodes are not excluded.

[0092] Additionally, such as Figure 1BAs shown, gNB 102 may include a transmit point (TP) 111 and a receive point (RP) 113, which are combined to form a transmit-receive point (TRP) 112, and may be physically or logically located within gNB 102. gNB-CU 192 may be configured to communicate with TP 111 and RP 113, for example, via an F1 interface. Therefore, gNB-CU 192 controls one or more TP 111 and RP 113 that can be accessed from gNB-CU 192 via the F1 interface.

[0093] In some embodiments, NG-RAN node 190 (or gNB 102) may include Figure 1B A subset of the elements shown. For example, NG-RAN node 190 may include gNB-CU 192, but may not include gNB-DU 194 and one or more of gNB-RU 196, RP 113, or TP 111. Alternatively, NG-RAN node 190 may include gNB-DU 194 and one or more of RP 113 or TP 111, but may not include gNB-RU 196. Furthermore, Figure 1B The components shown can be logically separated but physically co-located, or they can be physically partially or completely separated. For example, one or more of gNB-DU 194 and / or gNB-RU196, RP 113, or TP 111 can be physically separated from or physically coupled to gNB-CU 192. In the case of physical separation, the F1 or Fx interface can define signaling on the physical link or connection between the two separated components. In some implementations, gNB-CU 192 can be split into a control plane portion (referred to as CU-CP or gNB-CU-CP) and a user plane portion (referred to as CU-UP or gNB-CU-UP). In this case, both gNB-CU-CP and gNB-CU-UP can interact with gNB-DU 194 and / or gNB-RU 196 to support NR Uu air interface signaling for the control plane and user plane, respectively. However, only gNB-CU-CP can interact with TP 111 and RP 113 to support and control location-related communications.

[0094] The protocol layering between gNB-CU 192 and TP 111 and RP 113 can be based on F1 C as defined in 3GPP TS 38.470, which uses the top-level F1 Application Protocol (F1AP) specified in 3GPP TS 38.473. New location-supporting messages can be added directly to F1AP, or they can be introduced into a new location-specific protocol that uses F1AP for transmission.

[0095] The positioning process of gNB-CU 192 can include all positioning-related procedures on the NG, Xn, and NR-Uu interfaces. For example, the positioning process between AMF and NG-RAN node 190 can use NGAP. The positioning process between NG-RAN node 190 and other NG-RAN nodes (such as gNB 102) can use XnAP or protocols above XnAP, such as the Extended NR Positioning Protocol A (NRPPa) defined in 3GPP TS 38.455. The positioning process between NG-RAN node 190 and UE 104 can use RRC and / or LPP.

[0096] Location-related messages can be carried within a transparent F1AP message transmission container. For example, the transmission of NGAP location reporting control and NAS transmission messages can be carried within UL / DL NGAP message transmissions. The transmission of location-related XnAP messages can be carried within UL / DL XnAP message transmissions. The transmission of location-related RRC (LPP) messages can be carried within UL / DL RRC (LPP) message transmissions.

[0097] Figure 2A An example wireless network architecture 200 is illustrated. For example, NGC 210 (also referred to as "5GC") can be functionally considered as control plane function 214 (e.g., UE registration, authentication, network access, gateway selection, etc.) and user plane function 212 (e.g., UE gateway function, access to data networks, IP routing, etc.), which work together to form the core network. User plane interface (NG-U) 213 and control plane interface (NG-C) 215 connect gNB 222 to NGC 210, and specifically to control plane function 214 and user plane function 212. In another configuration, eNB 224 can also connect to NGC 210 via NG-C 215 to control plane function 214 and NG-U 213 to user plane function 212. Furthermore, eNB 224 can communicate directly with gNB 222 via backhaul connection 223. In some configurations, the new RAN 220 may have only one or more gNB 222s, while other configurations include one or more of both eNB 224 and gNB 222. Either gNB 222 or eNB 224 can be used with UE 204 (e.g., Figure 1AThe UE 204 can communicate with any of the UEs described herein. Another optional aspect may include one or more location servers 230a, 230b (sometimes collectively referred to as location server 230) (which may correspond to location server 172), which can communicate with control plane function 214 and user plane function 212 respectively in NGC 210 to provide location assistance to UE 204. Location server 230 may be implemented as multiple separate servers (e.g., physically separate servers, different software modules on a single server, different software modules distributed across multiple physical servers, etc.), or alternatively, each may correspond to a single server. Location server 230 may be configured to support one or more location services for UE 204, which UE 204 may connect to via the core network, NGC 210, and / or via the Internet (not shown). Furthermore, location server 230 may be integrated into a component of the core network, or alternatively, may be located outside the core network, for example, in a new RAN 220.

[0098] Figure 2B Another example wireless network architecture 250 is illustrated. For example, NGC 260 (also known as "5GC") can be functionally viewed as a control plane network comprised of Access and Mobility Management Function (AMF) 264, User Plane Function (UPF) 262, Session Management Function (SMF) 266, SLP 268, and LMF 270 operating in concert to form the core network (i.e., NGC 260). User plane interface 263 and control plane interface 265 connect ng-eNB 224 to NGC 260, specifically to UPF 262 and AMF 264, respectively. In an additional configuration, gNB 222 can also connect to NGC 260 via control plane interface 265 to AMF 264 and user plane interface 263 to UPF 262. Furthermore, eNB 224 can communicate directly with gNB 222 via backhaul connection 223, with or without a direct gNB connection to NGC 260. In some configurations, the new RAN 220 may have only one or more gNB 222s, while other configurations include one or more of both ng-eNB 224 and gNB 222. The gNB 222 or eNB 224 can be used with UE 204 (e.g., Figure 1A The base station of the new RAN 220 communicates with the AMF 264 via the N2 interface and with the UPF 262 via the N3 interface.

[0099] The AMF's functions include registration management, connection management, reachability management, mobility management, lawful interception, transmission of Session Management (SM) messages between UE 204 and SMF 266, transparent proxy service for routing SM messages, access authentication and access authorization, transmission of Short Message Service (SMS) messages between UE 204 and the Short Message Service Function (SMSF) (not shown), and Security Anchor Functionality (SEAF). The AMF also interacts with the Authentication Server Function (AUSF) (not shown) and UE 204, and receives the intermediate key established as a result of the UE 204 authentication process. In the case of UMTS (Universal Mobile Telecommunications System) Subscriber Identity Module (USIM)-based authentication, the AMF retrieves security materials from the AMF. The AMF's functions also include Security Context Management (SCM). The SCM receives keys from the SEAF for deriving access network-specific keys. The AMF's functions also include location service management for regulatory services, transmission of location service messages between UE 204 and Location Management Function (LMF) 270 (which may correspond to Location Server 172) and between the new RAN 220 and LMF 270, Evolved Packet System (EPS) bearer identifier allocation for interconnection with EPS, and UE 204 mobility event notification. Additionally, the AMF supports functions for accessing networks outside of the 3GPP (3rd Generation Partnership Project) network.

[0100] The functions of the UPF include serving as an anchor point for intra / inter-RAT mobility (if applicable), as an external Protocol Data Unit (PDU) session point for interconnection with a data network (not shown), providing packet routing and forwarding, packet inspection, user plane policy rule enforcement (e.g., gating, redirection, traffic guidance), lawful eavesdropping (user plane collection), traffic usage reporting, user plane Quality of Service (QoS) processing (e.g., UL / DL rate enforcement, reflected QoS marking in DL), UL traffic verification (SDF to QoS stream mapping), transport-level packet marking in UL and DL, DL packet buffering and DL data notification triggering, and sending and forwarding one or more "end markers" to the source RAN node.

[0101] The functions of SMF 266 include session management, UE Internet Protocol (IP) address allocation and management, selection and control of user plane functions, configuration of service orientation at the UPF to route services to appropriate destinations, control of policy enforcement and QoS, and downlink data notification. The interface through which SMF 266 communicates with AMF 264 is called the N11 interface.

[0102] Another optional aspect may include an LMF 270, which can communicate with the NGC 260 to provide location assistance to the UE 204. The LMF 270 can be implemented as multiple separate servers (e.g., physically separate servers, different software modules on a single server, different software modules distributed across multiple physical servers, etc.), or alternatively, each can correspond to a single server. The LMF 270 can be configured to support one or more location services for the UE 204, which can connect to the LMF 270 via the core network, the NGC 260, and / or via the Internet (not shown).

[0103] Figure 3 A block diagram of a design 300 for a base station 102 and a UE 104 is shown. The base station and the UE can be... Figure 1A One of the base stations and one of the UEs. The base station 102 may be equipped with T antennas 334a to 334t, and the UE 104 may be equipped with R antennas 352a to 352r, wherein typically T≥1 and R≥1.

[0104] At base station 102, transmitting processor 320 can receive data from data source 312 for one or more UEs, select one or more modulation and coding schemes (MCS) for each UE based at least in part on channel quality indicators (CQI) received from the UE, process (e.g., code and modulate) the data for each UE based at least in part on the selected MCS(s) for the UE, and provide data symbols for all UEs. Transmitting processor 320 can also process system information (e.g., for semi-static resource partitioning information (SRPI), etc.) and control information (e.g., CQI requests, authorizations, upper-layer signaling, etc.), and provide overhead symbols and control symbols. Transmitting processor 320 can also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS)) and synchronization signals (e.g., primary synchronization signal (PSS) and secondary synchronization signal (SSS)). If applicable, the transmit (TX) multiple-input multiple-output (MIMO) processor 330 can perform spatial processing (e.g., precoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols, and can provide T output symbol streams to T modulators (MODs) 332a to 332t. Each modulator 332 can process its own output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each modulator 332 can further process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a downlink signal. The T downlink signals from modulators 332a to 332t can be transmitted separately via T antennas 334a to 334t. Position coding can be used to generate synchronization signals to convey additional information, according to various aspects described in more detail below.

[0105] At UE 104, antennas 352a to 352r can receive downlink signals from base station 102 and / or other base stations, and can provide the received signals to demodulators 354a to 354r respectively. Each demodulator 354 can adjust (e.g., filter, amplify, downconvert, and digitize) the received signal to obtain an input sample. Each demodulator 354 can further process the input sample (e.g., for OFDM, etc.) to obtain the received symbols. MIMO detector 356 can obtain the received symbols from all R demodulators 354a to 354r, perform MIMO detection on the received symbols (if applicable), and provide the detected symbols. Receiver processor 358 can process (e.g., demodulate and decode) the detected symbols, provide the decoded data for UE 104 to data sink 360, and provide the decoded control information and system information to controller / processor 380. The channel processor can determine the Received Reference Signal Power (RSRP), Received Signal Strength Indicator (RSSI), Received Reference Signal Quality (RSRQ), Channel Quality Indicator (CQI), etc. In some respects, one or more components of UE 104 may be included in the housing.

[0106] On the uplink, at UE 104, the transmitting processor 364 can receive and process data from data source 362 and control information from controller / processor 380 (e.g., for reports including RSRP, RSSI, RSRQ, CQI, etc.). The transmitting processor 364 can also generate reference symbols for one or more reference signals. Symbols from the transmitting processor 364 can be pre-encoded (if applicable) by TX MIMO processor 366, further processed by modulators 354a to 354r (e.g., for DFT-s-OFDM, CP-OFDM, etc.), and transmitted to base station 102. At base station 102, uplink signals from UE 104 and other UEs can be received by antenna 334, processed by demodulator 332, detected by MIMO detector 336 (if applicable), and further processed by receiving processor 338 to obtain decoded data and control information transmitted by UE 104. The receiver processor 338 can provide decoded data to the data sink 339 and decoded control information to the controller / processor 340. The base station 102 may include a communication unit 344 and communicates with the location server 172 via the communication unit 344. The location server 172 may include a communication unit 394, a controller / processor 390, and a memory 392.

[0107] The controller / processor 340 of base station 102, the controller / processor 380 of UE 104, the controller / processor 390 of location server 172 and / or Figure 3Any and more other components may perform one or more techniques associated with broadcast positioning assistance data, as described in more detail elsewhere herein, in a differential manner. For example, the controller / processor 340 of base station 102, the controller / processor 390 of location server 172, the controller / processor 380 of UE 104, and / or Figure 3 Any (or multiple) other components can perform or direct, for example Figure 25 , Figure 26 and Figure 27 The execution of processes 2500, 2600, and / or other processes described herein. Memory 342, 382, ​​and 392 may store data and program code for base station 102, UE 104, and location server 172, respectively. In some aspects, memory 342 and / or memory 382 and / or memory 392 may include a non-transitory computer-readable medium storing one or more instructions for wireless communication. For example, when run by one or more processors of base station 102, location server 172, and / or UE 104, these one or more instructions may execute or direct, for example... Figure 25 , Figure 26 and Figure 27 The operation of processes 2500, 2600, and 2700 and / or other processes as described herein. Scheduler 346 may schedule the UE for data transmission on the downlink and / or uplink.

[0108] As mentioned above, providing Figure 3 As an example. Other examples can be related to... Figure 3 The descriptions differ.

[0109] Figure 4 The structure of an exemplary subframe sequence 400 with a Positioning Reference Signal (PRS) timing according to various aspects of this disclosure is shown. Subframe sequence 400 can be adapted for broadcasting PRS signals from a base station (e.g., any base station described herein) or other network nodes. Subframe sequence 400 can be used in LTE systems, and the same or similar subframe sequences can be used in other communication technologies / protocols (such as 5G and NR). Figure 4 In this model, time is represented horizontally (e.g., on the X-axis), increasing from left to right, while frequency is represented vertically (e.g., on the Y-axis), increasing (or decreasing) from bottom to top. Figure 4 As shown, downlink and uplink radio frames 410 can each have a duration of 10 milliseconds (ms). For downlink frequency division duplex (FDD) mode, in the example shown, radio frames 410 are organized into ten subframes 412, each with a duration of 1 ms. Each subframe 412 includes two time slots 414, each with a duration of, for example, 0.5 ms.

[0110] In the frequency domain, the available bandwidth can be divided into evenly spaced orthogonal subcarriers 416 (also called “tones” or “bins”). For example, for a regular-length cyclic prefix (CP) using, for example, a 15 kHz interval, the subcarriers 416 can be grouped into groups of twelve (12) subcarriers. A resource (represented as a block of subframe 412) having one OFDM symbol length in the time domain and one subcarrier in the frequency domain is called a resource element (RE). Each group of 12 subcarriers 416 and 14 OFDM symbols is called a resource block (RB), and in the example above, the number of subcarriers in a resource block can be written as For a given channel bandwidth, the number of available resource blocks on each channel 422, also known as the transmit bandwidth configuration 422, is indicated as follows: For example, for a 3MHz channel bandwidth in the example above, the number of available resource blocks on each channel 422 is determined by... Given. Note that the frequency components of a resource block (e.g., 12 subcarriers) are called a physical resource block (PRB).

[0111] Base stations can be based on and Figure 4 The frame configuration shown herein is similar or identical to the frame configuration used to transmit radio frames (e.g., radio frame 410) or other physical layer signaling sequences that support a PRS signal (i.e., downlink (DL) PRS), which can be measured and used for UE (e.g., any of the UEs described herein) location estimation. Other types of wireless nodes in the wireless communication network (e.g., distributed antenna systems (DAS), remote radio heads (RRH), UEs, APs, etc.) can also be configured to transmit to interact with... Figure 4 The PRS signal is configured in a manner similar to (or identical to) that described in the document.

[0112] A set of resource elements used for the transmission of PRS signals is called a “PRS resource”. The set of resource elements can span multiple PRBs in the frequency domain and N (e.g., one or more) consecutive symbols within time slot 414 in the time domain. For example, a cross-shading resource element in time slot 414 can be an example of two PRS resources. A “PRS resource set” is a set of PRS resources used for the transmission of PRS signals, where each PRS resource has a PRS resource identifier (ID). Furthermore, PRS resources in a PRS resource set are associated with the same transmit-receive point (TRP). The PRS resource ID in the PRS resource set is associated with a single beam transmitted from a single TRP (where a TRP can transmit one or more beams). Note that this has no effect on whether the UE knows the TRP and beam from which it transmits signals.

[0113] PRS can be transmitted in dedicated positioning subframes grouped as positioning opportunities. A PRS opportunity is an instance of a periodically repeating time window (e.g., multiple consecutive time slots) in which PRS is expected to be transmitted. Each periodically repeating time window may include a set of one or more consecutive PRS opportunities. Each PRS opportunity may include a number N. PRS The continuous positioning subframes. The PRS positioning timing for cells supported by the base station can occur periodically at intervals, the interval being a number T. PRS The millisecond or subframe representation. As an example. Figure 4 The diagram illustrates the periodicity of positioning opportunities, where N... PRS It equals 4418, and T PRS Greater than or equal to 20420. In some respects, T can be measured according to the number of subframes between the start of consecutive positioning events. PRS Multiple PRS events can be associated with the same PRS resource configuration; in this case, each such event is referred to as a "PRS resource event," etc.

[0114] PRS can be transmitted at constant power. It can also be transmitted at zero power (i.e., silent). Silencing periodically scheduled PRS transmissions can be useful when PRS signals from different cells overlap by occurring at the same or nearly the same time. In this case, PRS signals from some cells can be silenced, while PRS signals from other cells are transmitted (e.g., at constant power). Silencing can assist the UE in signal acquisition and Time of Arrival (TOA) and Reference Signal Time Difference (RSTD) measurements of unsilenced PRS signals (by avoiding interference from silenced PRS signals). Silencing can be considered as the non-transmission of PRS for a given positioning time for a specific cell. A silence pattern (also known as a silence sequence) can be signaled to the UE using a bit string (e.g., using the LTE Positioning Protocol (LPP)). For example, in the bit string signaling the silence pattern, if the bit at azimuth j is set to "0", the UE can infer that the PRS was silenced at the j-th positioning time.

[0115] To further improve the audibility of the PRS, the positioning subframe can be a low-interference subframe transmitted in the absence of a user data channel. As a result, in an ideal synchronization network, the PRS may be interfered with by PRS from other cells with the same PRS pattern index (i.e., the same frequency offset), rather than by interference from data transmission. The frequency offset can be defined as a function of the PRS ID used for the cell or other transmitting point (TP) (denoted as...). If no PRSID is assigned, it is defined as a function of the Physical Cell Identifier (PCI) (represented as...). This results in an effective frequency reuse factor of six (6).

[0116] To further improve the audibility of the PRS (e.g., when PRS bandwidth is limited, such as only six resource blocks corresponding to a 1.4 MHz bandwidth), the frequency band used for consecutive PRS positioning opportunities (or consecutive PRS subframes) can be changed in a known and predictable manner via frequency hopping. Additionally, a cell supported by a base station can support more than one PRS configuration, where each PRS configuration may include different frequency shifts (vshifts), different carrier frequencies, different bandwidths, different code sequences, and / or have a specific number of subframes (N) for each positioning opportunity. PRS ) and specific period (T) PRS Different PRS timing sequences. In some implementations, one or more of the PRS configurations supported in the cell can be used for directional PRS, and can then have additional different characteristics, such as different transmission directions, different horizontal angle ranges, and / or different vertical angle ranges.

[0117] As described above, the PRS configuration, including PRS transmission / silent scheduling, is signaled to the UE to enable the UE to perform PRS positioning measurements. The UE is not expected to blindly perform PRS configuration detection.

[0118] Similar to the DL PRS transmitted by the base station discussed above, the UE can transmit UL PRS for positioning. UL PRS can be, for example, a sounding reference signal (SRS) for positioning.

[0119] Using DL PRS received from the base station or SL signaling received from other UEs, and / or UL PRS transmitted to the base station or SL to other UEs, a UE can perform various positioning measurements, such as Reference Signal Time Difference (RSTD) measurement for Time Difference of Arrival (TDOA) positioning techniques, Reference Signal Received Power (RSRP) measurement for TDOA, Angle of Departure and Round-Trip Time (RTT), or Multi-Cell RTT (Multi-RTT) positioning techniques, and Time Difference between Signal Reception and Transmission (Rx-Tx) for Multi-RTT positioning techniques. Positioning techniques using reference signals include downlink-based positioning, uplink-based positioning, and combined downlink and uplink-based positioning. For example, downlink-based positioning includes methods such as DL-TDOA and DL-AOD. Uplink-based positioning includes methods such as UL-TDOA and UL-AOA. Downlink and uplink-based positioning includes methods such as RTT (Multi-RTT) with one or more neighboring base stations. Other positioning methods exist, including those that do not rely on PRS. For example, Enhanced Cell ID (E-CID) is based on Radio Resource Management (RRM) measurements.

[0120] Figure 5The illustration shows a UE 500 as an example of UE 104, capable of receiving auxiliary data including a time-slot-type PRS silent configuration and performing positioning measurements using DL PRS. UE 500 includes a computing platform comprising at least one processor 510, a memory 511 including software (SW) 512, one or more sensors 513, a transceiver interface 514 for a transceiver 515, a user interface 516, a satellite positioning system (SPS) receiver 517, a camera 518, and a positioning engine (PE) 519. At least one processor 510, memory 511, sensor(s) 513, transceiver interface 514, user interface 516, SPS receiver 517, camera 518, and positioning engine 519 can be communicatively coupled to each other via a bus 520 (which can be configured, for example, for optical and / or electrical communication). One or more of the illustrated devices (e.g., camera 518, SPS receiver 517, and / or one or more of sensor(s) 513, etc.) may be omitted from UE 500. At least one processor 510 may include one or more smart hardware devices, such as a central processing unit (CPU), microcontroller, application-specific integrated circuit (ASIC), etc. At least one processor 510 may include multiple processors, including an application processor 530, a digital signal processor (DSP) 531, a modem processor 532, a video processor 533, and / or a sensor processor 534. At least one processor 510 may also include a positioning engine 519, or the positioning engine 519 may be considered separate from at least one processor 510. One or more of the processors 530-534 may include multiple devices (e.g., multiple processors). For example, the sensor processor 534 may include processors for radar, ultrasonic, and / or lidar, etc. The modem processor 532 may support dual SIM / dual connectivity (or even more SIMs). For example, the SIM (Subscriber Identification Module) may be used by an original equipment manufacturer (OEM), while another SIM may be used by the end user of the UE 500 for connectivity. Memory 511 is a non-transitory storage medium that may include random access memory (RAM), flash memory, optical disc storage, and / or read-only memory (ROM), etc. Memory 511 stores software 512, which may be processor-readable and processor-executable software code containing instructions configured to, when executed, cause at least one processor 510 to be programmed as a special-purpose computer processor to perform the various functions described herein. Alternatively, software 512 may not be directly executed by at least one processor 510, but may be configured, for example, when compiled and executed, to cause at least one processor 510 to perform the various functions described herein as a special-purpose computer.This description may refer only to at least one processor 510 performing the function, but it includes other implementations, such as at least one processor 510 running software and / or firmware. This description may also refer to at least one processor 510 performing the function as one or more of processors 530-534 performing the function. This description may also refer to UE 500 performing the function as one or more suitable components of UE 500 performing the function. In addition to and / or replacing memory 511, at least one processor 510 may include memory with stored instructions. The functionality of at least one processor 510 will be discussed more fully below.

[0121] Figure 5 The configuration of the UE 500 shown is an example of the invention as described in the claims and is not limiting; other configurations may be used. For example, an example configuration of the UE includes at least one processor 530-534 of a processor 510, a memory 511, and one or more of a wireless transceiver 540. Other example configurations include at least one processor 530-534 of a processor 510, a memory 511, a wireless transceiver 540, and one or more of sensors 513, a user interface 516, an SPS receiver 517, a camera 518, a PE 519, and / or one or more of a wired transceiver 550.

[0122] UE 500 may include a modem processor 532 capable of performing baseband processing on signals received and down-converted by transceiver 515 and / or SPS receiver 517. The modem processor 532 may perform baseband processing on signals to be up-converted for transmission by transceiver 515. Alternatively, baseband processing may be performed by application processor 530 and / or DSP 531. However, other configurations may be used to perform baseband processing.

[0123] UE 500 may include one or more sensors 513, which may include one or more sensors of various types, such as one or more inertial sensors, one or more barometric pressure sensors, one or more magnetometers, one or more environmental sensors, one or more optical sensors, one or more weight sensors, and / or one or more radio frequency (RF) sensors. An inertial measurement unit (IMU) may include, for example, one or more accelerometers (e.g., collectively responding to acceleration of UE 500 in three dimensions) and / or one or more gyroscopes capable of detecting motion, including rotation of UE 500. The sensors 513 may include one or more magnetometers to determine orientation (e.g., relative to magnetic north and / or true north), which may be used for any of a variety of purposes, such as supporting one or more compass applications. One or more environmental sensors may include, for example, one or more temperature sensors, one or more barometric pressure sensors, one or more ambient light sensors, one or more camera imagers, and / or one or more microphones. Multiple sensors 513 can generate analog and / or digital signals, the indications of which can be stored in memory 511 and processed by DSP 531 and / or application processor 530 to support one or more applications (such as applications for positioning and / or navigation operations).

[0124] Multiple sensors 513 can be used for relative position measurement, relative position determination, motion determination, etc. Information detected by the multiple sensors 513 can be used for motion detection, relative displacement, dead reckoning, sensor-based position determination, and / or sensor-assisted position determination. The multiple sensors 513 can be used to determine whether the UE 500 is stationary or moving (including rotating) and / or whether to report certain useful information about the UE 500's mobility to the location server 172. For example, based on information obtained / measured by the multiple sensors, the UE 500 can notify / report to the location server 172 that the UE 500 has detected movement or that the UE 500 has moved, and report relative displacement / distance (e.g., via dead reckoning, or sensor-based position determination, or sensor-assisted position determination enabled by the multiple sensors 513). In another example, for relative positioning information, sensors / IMUs can be used to determine the angle and / or orientation of other devices relative to the UE 500, etc.

[0125] The IMU can be configured to provide measurements of the direction and / or velocity of motion of the UE 500, which can be used for relative position determination. For example, one or more accelerometers and / or one or more gyroscopes of the IMU can detect the linear acceleration and rotational velocity of the UE 500, respectively. The linear acceleration and rotational velocity measurements of the UE 500 can be integrated over time to determine the instantaneous direction of motion and displacement of the UE 500. The instantaneous direction and displacement of motion can be integrated to track the position of the UE 500. For example, a reference position of the UE 500 can be determined for a given moment, for example using an SPS receiver 517 (and / or some other component), and measurements from the accelerometer(s) and gyroscope(s) after that moment can be used for dead reckoning to determine the current position of the UE 500 based on its motion (direction and distance) relative to the reference position.

[0126] Multiple magnetometers can determine the magnetic field strength in different directions, and this magnetic field strength can be used to determine the orientation of the UE 500. For example, this orientation can be used to provide a digital compass for the UE 500. The magnetometers can be two-dimensional magnetometers configured to detect and provide indications of magnetic field strength in two orthogonal dimensions. Alternatively, the magnetometers can be three-dimensional magnetometers configured to detect and provide indications of magnetic field strength in three orthogonal dimensions. The magnetometers can provide components for sensing magnetic fields and, for example, providing magnetic field indications to at least one processor 510.

[0127] Multiple barometric pressure sensors can determine barometric pressure, which can be used to determine the elevation or current floor level in the building of the UE 500. For example, differential pressure readings can be used to detect when the UE 500 has changed its floor level and the number of floors that have changed. Multiple barometric pressure sensors can provide components for sensing barometric pressure and, for example, providing barometric pressure indication to at least one processor 510.

[0128] Transceiver 515 may include a wireless transceiver 540 and a wired transceiver 550, configured to communicate with other devices via wireless and wired connections, respectively. For example, wireless transceiver 540 may include a transmitter 542 and a receiver 544 coupled to one or more antennas 546 for transmitting (e.g., on one or more uplink channels and / or one or more sidelink channels) and / or receiving (e.g., on one or more downlink channels and / or one or more sidelink channels) wireless signals 548, and for converting signals from wireless signals 548 to wired (e.g., electrical and / or optical) signals, and vice versa. Therefore, transmitter 542 may include multiple transmitters, which may be discrete components or combined / integrated components, and / or receiver 544 may include multiple receivers, which may be discrete components or combined / integrated components. The wireless transceiver 540 can be configured to support technologies such as 5G New Radio (NR), GSM (Global System for Mobile Communications), UMTS (Universal Mobile Telecommunications System), AMPS (Advanced Mobile Telephone System), CDMA (Code Division Multiple Access), WCDMA (Wideband CDMA), LTE (Long Term Evolution), LTE Direct (LTE-D), 6GPP LTE-V2X (PC5), IEEE 802.11 (including IEEE 802.11p), WiFi, WiFi Direct (WiFi-D), and Bluetooth. Various radio access technologies (RATs) such as Zigbee are used to communicate signals (e.g., with TRPs and / or one or more other devices). The new radio can use millimeter-wave frequencies and / or sub-6 GHz frequencies. Wired transceiver 550 may include transmitter 552 and receiver 554 configured for wired communication, for example, with a network. Transmitter 552 may include multiple transmitters, which may be discrete components or combined / integrated components, and / or receiver 554 may include multiple receivers, which may be discrete components or combined / integrated components. Wired transceiver 550 may be configured for, for example, optical and / or electrical communication. Transceiver 515 may be communicatively coupled to transceiver interface 514, for example, via optical and / or electrical connections. Transceiver interface 514 may be at least partially integrated with transceiver 515.

[0129] Antenna 546 may include an antenna array capable of receiving beamforming, for example by amplifying (e.g., increasing the gain level) RF signals received from a particular direction by increasing the gain setting and / or adjusting the phase setting of the antenna array in that direction. Antenna 546 may also include multiple antenna panels, each capable of beamforming. Antenna 546 is adaptive, for example, selecting one or more antennas for controlling the reception of beams transmitted from a base station. For example, a reduced number of beams or a single beam may be selected for receiving a wide-angle beam, for example, to reduce power consumption, while an increased number of antennas in the antenna array may be selected when the transmitted beam is relatively narrow.

[0130] User interface 516 may include one or more devices such as, for example, a speaker, microphone, display device, vibration device, keyboard, touchscreen, etc. User interface 516 may include more than one of these devices. User interface 516 may be configured to enable a user to interact with one or more applications hosted by UE 500. For example, user interface 516 may store indications of analog and / or digital signals in memory 511 for processing by DSP 531 and / or application processor 530 in response to actions from the user. Similarly, applications hosted on UE 500 may store indications of analog and / or digital signals in memory 511 to present output signals to the user. User interface 516 may include audio input / output (I / O) devices, including, for example, speakers, microphones, digital-to-analog circuitry, analog-to-digital circuitry, amplifiers, and / or gain control circuitry (including more than one of these devices). Other configurations of the audio I / O devices may be used. Furthermore, or alternatively, the user interface 516 may include one or more touch sensors that respond to touch and / or pressure, for example, on the keyboard and / or touchscreen of the user interface 516.

[0131] SPS receiver 517 (e.g., a Global Positioning System (GPS) receiver) is capable of receiving and acquiring SPS signal 560 via SPS antenna 562. Antenna 562 is configured to convert the wireless signal 560 into a wired signal (e.g., an electrical or optical signal) and may be integrated with antenna 546. SPS receiver 517 may be configured to process the acquired SPS signal 560, in whole or in part, to estimate the location of UE 500. For example, SPS receiver 517 may be configured to determine the location of UE 500 by using trilateration of SPS signal 560. Application processor 530, memory 511, DSP 531, PE 519, and / or one or more additional dedicated processors (not shown) may be used, together with SPS receiver 517, to process the acquired SPS signal, in whole or in part, and / or calculate the estimated location of UE 500. Memory 511 may store indications (e.g., measurements) of SPS signal 560 and / or other signals (e.g., signals acquired from wireless transceiver 540) used to perform positioning operations. Application processor 530, DSP 531, PE 519 and / or one or more additional dedicated processors and / or memory 511 can provide or support a location engine for processing measurements to estimate the position of UE 500.

[0132] UE 500 may include a camera 518 for capturing still or moving images. Camera 518 may include, for example, an imaging sensor (e.g., a charge-coupled device or a CMOS imager), a lens, analog-to-digital circuitry, a frame buffer, etc. Additional processing, conditioning, encoding, and / or compression of the signals representing the captured images may be performed by application processor 530 and / or DSP 531. And or alternatively, video processor 533 may perform conditioning, encoding, compression, and / or manipulation of the signals representing the captured images. Video processor 533 may decode / decompress stored image data for presentation on a display device (not shown), such as user interface 516.

[0133] The positioning engine (PE) 519 can be configured to determine the location of the UE 500, the motion of the UE 500, and / or the relative location and / or time of the UE 500. For example, the PE 519 can communicate with the SPS receiver 517 and / or include some or all of the SPS receiver 217 and the wireless transceiver 540. The PE 519 can suitably work in conjunction with at least one processor 510 and memory 511 to perform at least a portion of one or more positioning methods, although the description herein may refer only to the PE 519 being configured to perform or perform according to the positioning method(s). The PE 519 can also, or alternatively, be configured to perform trilateration using ground-based signals (e.g., at least some signals 548), assist in acquiring and using the SPS signal 560, or both, to determine the location of the UE 500. PE 519 can be configured to determine the location of UE 500 using one or more other technologies (e.g., relying on the UE's self-reported location (e.g., part of the UE's positioning beacon)), and can use a combination of technologies (e.g., SPS and terrestrial positioning signals) to determine the location of UE 500. PE 519 may include (multiple) sensors 513 (e.g., (multiple) gyroscopes, (multiple) accelerometers, (multiple) magnetometers, etc.) that can sense the orientation and / or motion of UE 500, and provide indications of at least one processor 510 (e.g., application processor 530 and / or DSP 531) that can be configured to determine the motion of UE 500 (e.g., velocity vector and / or acceleration vector). PE 519 can be configured to provide indications of uncertainties and / or errors in the determined positioning and / or motion.

[0134] Memory 511 may store software 512 containing executable program code or software instructions that, when executed by at least one processor 510, cause the at least one processor 510 to operate as a dedicated computer programmed to perform the functions disclosed herein. As shown, memory 511 may include one or more components or modules that may be implemented by at least one processor 510 to perform the functions disclosed herein. While such components or modules are shown as software 512 executable by at least one processor 510 in memory 511, it should be understood that such components or modules may be stored in another computer-readable medium or may be dedicated hardware in or outside of at least one processor 510. Multiple software modules and data tables may reside in memory 511 and be utilized by at least one processor 510 to manage both the communications and functions described herein. It should be understood that the organization of the contents of memory 511 as shown is merely exemplary, and therefore, the functionality of modules and / or data structures may be combined, separated, and / or structured in different ways depending on the implementation.

[0135] For example, memory 511 may include a positioning session module 572, which, when implemented by one or more processors 510, configures the one or more processors 510 to participate in a positioning session for the UE. For example, the one or more processors 510 may be configured to participate in the positioning session by providing positioning capabilities to a location server via transceiver 515. The one or more processors 510 may be configured to receive positioning assistance data, including PRS scheduling and DL PRS silent configuration, from a location server and / or serving base station via transceiver 515, such as radio transceiver 540. The one or more processors 510 may be configured to receive PRS beams based on silent scheduling and, for example, use transceiver 515 to perform positioning measurements. The one or more processors 510 may also be configured to estimate a location using positioning measurements and base station location information received in the assistance data for UE-based positioning, or to provide measurement information reports via transceiver 515 to network nodes such as a location server for UE-assisted positioning.

[0136] Figure 6 An example of a TRP 600 is shown, capable of providing auxiliary data including PRS silent configuration based on time slot type for base stations 102 and 180. The TRP 600 includes a computing platform comprising at least one processor 610, a memory 611 including software (SW) 612, and a transceiver 615. The at least one processor 610, memory 611, and transceiver 615 can be communicatively coupled to each other via a bus 620 (which can be configured, for example, for optical and / or electrical communication). One or more of the devices shown (e.g., wireless interfaces) may be omitted from the TRP 600. The at least one processor 610 may include one or more intelligent hardware devices, such as a central processing unit (CPU), microcontroller, application-specific integrated circuit (ASIC), etc. The at least one processor 610 may include multiple processors (e.g., including similar...). Figure 5(The application processor, DSP, modem processor, video processor, and / or sensor processor shown herein). Memory 611 is a non-transitory storage medium that may include random access memory (RAM), flash memory, optical disc storage, and / or read-only memory (ROM), etc. Memory 611 stores software 612, which may be processor-readable and processor-executable software code containing instructions configured to, when executed, cause at least one processor 610 to be programmed as a dedicated computer processor to perform the various functions described herein. Alternatively, software 612 may not be directly executed by at least one processor 610, but may be configured, for example, to cause at least one processor 610 to perform the various functions described herein as a dedicated computer when compiled and executed. This description may refer only to at least one processor 610 performing functions, but this includes other implementations, such as at least one processor 610 running software and / or firmware. This description may simply refer to at least one processor 610 performing functions as one or more processors included in at least one processor 610 performing functions. This description may refer to the TRP 600 performing the function as a shorthand for one or more suitable components of the TRP 600 (and therefore one of the base stations 102, 180) performing the function. In addition to and / or replacing the memory 611, at least one processor 610 may include a memory with stored instructions. The functionality of at least one processor 610 will be discussed more fully below.

[0137] Transceiver 615 may include a wireless transceiver 640 and a wired transceiver 650, configured to communicate with other devices via wireless and wired connections, respectively. For example, wireless transceiver 640 may include a transmitter 642 and a receiver 644 coupled to one or more antennas 646 for transmitting (e.g., on one or more uplink channels and / or one or more downlink channels) and / or receiving (e.g., on one or more downlink channels and / or one or more uplink channels) wireless signals 648, and for converting signals from wireless signals 648 to wired (e.g., electrical and / or optical) signals, and vice versa. Antenna 646 is one or more antenna arrays capable of beamforming and transmitting beams (including PRS beams with beamwidths in a specific direction). Transmitter 642 may include multiple transmitters, which may be discrete components or combined / integrated components, and / or receiver 644 may include multiple receivers, which may be discrete components or combined / integrated components. The wireless transceiver 640 can be configured to support technologies such as 5G New Radio (NR), GSM (Global System for Mobile Communications), UMTS (Universal Mobile Telecommunications System), AMPS (Advanced Mobile Telephone System), CDMA (Code Division Multiple Access), WCDMA (Wideband CDMA), LTE (Long Term Evolution), LTE Direct (LTE-D), 6GPP LTE-V2X (PC5), IEEE 802.11 (including IEEE 802.11p), WiFi, WiFi Direct (WiFi-D), and Bluetooth. Various radio access technologies (RATs) such as Zigbee are used to communicate signals (e.g., with UE 500, one or more other UEs, and / or one or more other devices). Wired transceiver 650 may include transmitter 652 and receiver 654, configured for wired communication, for example, with a network, to send and receive communications to and from location server 172. Transmitter 652 may include multiple transmitters, which may be discrete components or combined / integrated components, and / or receiver 654 may include multiple receivers, which may be discrete components or combined / integrated components. Wired transceiver 650 may be configured for, for example, optical and / or electrical communication.

[0138] Figure 6The configuration of TRP 600 shown is an example of the invention as described in the claims and is not limiting, and other configurations may be used. For example, the description herein discusses TRP 600 being configured to perform or perform several functions, but one or more of these functions may be performed by location server 172 and / or UE 500 (i.e., location server 172 and / or UE 500 may be configured to perform one or more of these functions).

[0139] Memory 611 may store software 612 containing executable program code or software instructions that, when executed by at least one processor 610, cause that at least one processor 610 to operate as a dedicated computer programmed to perform the functions disclosed herein. As shown, memory 611 may include one or more components or modules that may be implemented by at least one processor 610 to perform the functions disclosed herein. While such components or modules are shown as software 612 executable by at least one processor 610 in memory 611, it should be understood that such components or modules may be stored in another computer-readable medium or may be dedicated hardware in or outside of at least one processor 610. Multiple software modules and data tables may reside in memory 611 and be utilized by at least one processor 610 to manage both the communications and functions described herein. It should be understood that the organization of the contents of memory 611 as shown is merely exemplary, and therefore, the functionality of modules and / or data structures may be combined, separated, and / or structured in different ways depending on the implementation.

[0140] For example, memory 611 may include a positioning session module 672, which, when implemented by at least one processor 610, configures at least one processor 610 to participate in the UE's positioning session. For example, one or more processors 610 may be configured to provide PRS beam configuration information to a location server, transmit PRS beams according to the PRS beam configuration via transceiver 615, and receive PRS scheduling and silence configuration from the location server. One or more processors 610 may also be configured to receive and transmit one or more messages between the UE and the location server according to LPP, including requesting capability; providing capability; requesting priority; providing priority; requesting auxiliary data; providing auxiliary data; requesting location information; providing location information; aborting; and errors.

[0141] For example, memory 611 may include a silencing module 674, which, when implemented by one or more processors 610, configures the processors 610 to obtain a PRS silencing configuration based on the time slot type in which the PRS is transmitted, for example, by generating a PRS silencing configuration or receiving a PRS silencing configuration from a location server. The PRS silencing configuration may be based at least in part on the base station's ability to perform self-interference cancellation. In some implementations, one or more processors 610 may be configured to transmit an indication to the location server of the ability to perform self-interference cancellation. One or more processors 610 may also be configured to obtain intra-time slot silencing configurations, inter-instance silencing configurations, and intra-instance silencing configurations, or combinations thereof, and combine two or more silencing configurations. One or more processors 610 may also be configured to provide the silencing configuration, such as a time slot type-based PRS silencing configuration, to the UE and / or to the location server, for example, using lower-layer communications.

[0142] Figure 7 A server 700 is shown, which is an example of a location server 172 such as LMF 270, capable of providing auxiliary data including PRS silent configuration based on time slot type. Server 700 includes a computing platform comprising at least one processor 710, a memory 711 including software (SW) 712, and a transceiver 715. The at least one processor 710, memory 711, and transceiver 715 can be communicatively coupled to each other via a bus 720 (which can be configured, for example, for optical and / or electrical communication). One or more of the devices shown (e.g., wireless interfaces) may be omitted from server 700. The at least one processor 710 may include one or more intelligent hardware devices, such as a central processing unit (CPU), microcontroller, application-specific integrated circuit (ASIC), etc. The at least one processor 710 may include multiple processors (e.g., including similar...). Figure 5(At least one of the application processor, DSP, modem processor, video processor, and / or sensor processor shown). Memory 711 is a non-transitory storage medium that may include random access memory (RAM), flash memory, optical disc storage, and / or read-only memory (ROM), etc. Memory 711 stores software 712, which may be processor-readable and processor-executable software code containing instructions configured to, when executed, cause at least one processor 710 to be programmed as a dedicated computer processor to perform the various functions described herein. Alternatively, software 712 may not be directly executed by at least one processor 710, but may be configured, for example, when compiled and executed, to cause at least one processor 710 to perform the various functions described herein as a dedicated computer. This description may refer only to at least one processor 710 performing functions, but this includes other implementations, such as at least one processor 710 running software and / or firmware. This description may refer simply to at least one processor 710 performing functions as one or more processors included in at least one processor 710 performing functions. This description may refer to server 700 performing functions as one or more suitable components of server 700 performing functions. In addition to and / or replacing memory 711, at least one processor 710 may include memory with stored instructions. The functionality of at least one processor 710 will be discussed more fully below.

[0143] Transceiver 715 may include a wireless transceiver 740 and a wired transceiver 750, configured to communicate with other devices via wireless and wired connections, respectively. For example, wireless transceiver 740 may include a transmitter 742 and a receiver 744 coupled to one or more antennas 746 for transmitting (e.g., on one or more downlink channels) and / or receiving (e.g., on one or more uplink channels) wireless signals 748, and for converting signals from wireless signals 748 to wired (e.g., electrical and / or optical) signals, and vice versa. Therefore, transmitter 742 may include multiple transmitters, which may be discrete components or combined / integrated components, and / or receiver 744 may include multiple receivers, which may be discrete components or combined / integrated components. The wireless transceiver 740 can be configured to support technologies such as 5G New Radio (NR), GSM (Global System for Mobile Communications), UMTS (Universal Mobile Telecommunications System), AMPS (Advanced Mobile Telephone System), CDMA (Code Division Multiple Access), WCDMA (Wideband CDMA), LTE (Long Term Evolution), LTE Direct (LTE-D), 6GPP LTE-V2X (PC5), IEEE 802.11 (including IEEE 802.11p), WiFi, WiFi Direct (WiFi-D), and Bluetooth. Various radio access technologies (RATs) such as Zigbee are used to communicate signals (e.g., with UE500, one or more other UEs, and / or one or more other devices). Wired transceiver 750 may include transmitter 752 and receiver 754, configured for wired communication, for example, with a network, to send and receive communications to and from TRP 600. Transmitter 752 may include multiple transmitters, which may be discrete components or combined / integrated components, and / or receiver 754 may include multiple receivers, which may be discrete components or combined / integrated components. Wired transceiver 750 may be configured for, for example, optical and / or electrical communication.

[0144] Figure 7 The configuration of server 700 shown is an example of the invention as described in the claims and is not limiting; other configurations may be used. For example, wireless transceiver 740 may be omitted. Moreover, or alternatively, the description herein discusses server 700 being configured to perform or perform several functions, but one or more of these functions may be performed by TRP 600 and / or UE 500 (i.e., TRP 600 and / or UE 500 may be configured to perform one or more of these functions).

[0145] Memory 711 may store software 712 containing executable program code or software instructions that, when executed by at least one processor 710, cause the at least one processor 710 to operate as a dedicated computer programmed to perform the functions disclosed herein. As shown, memory 711 may include one or more components or modules that may be implemented by at least one processor 710 to perform the functions disclosed herein. While such components or modules are shown as software 712 executable by at least one processor 710 in memory 711, it should be understood that such components or modules may be stored in another computer-readable medium or may be dedicated hardware in or outside of at least one processor 710. Multiple software modules and data tables may reside in memory 711 and be utilized by at least one processor 710 to manage both the communications and functions described herein. It should be understood that the organization of the contents of memory 711 as shown is merely exemplary, and therefore, the functionality of modules and / or data structures may be combined, separated, and / or structured in different ways depending on the implementation.

[0146] For example, memory 711 may include a positioning session module 772, which, when implemented by at least one processor 710, configures at least one processor 710 to participate in a positioning session of the UE. For example, one or more processors 710 may be configured to receive PRS beam configuration information from a base station and generate auxiliary data for positioning the UE, including PRS scheduling and silent configuration, and, for example, provide the PRS scheduling and silent configuration to the base station and the UE in the auxiliary data. One or more processors 710 may also be configured to receive and transmit one or more messages from and to the UE according to LPP, including requesting capability; providing capability; requesting priority; providing priority; requesting auxiliary data; providing auxiliary data; requesting location information; providing location information; aborting; and errors.

[0147] For example, memory 711 may include a silencing module 774, which, when implemented by one or more processors 710, configures the one or more processors 710 to generate or receive a PRS silencing configuration based on the time slot type in which the PRS transmission is performed, the PRS silencing configuration being at least partially based on the base station's ability to perform self-interference cancellation, and the one or more processors 710 may be configured to receive the PRS silencing configuration from the base station. The one or more processors 710 may also be configured to generate or receive intra-slot silencing configurations, inter-instance silencing configurations, and intra-instance silencing configurations, or combinations thereof, and to combine two or more silencing configurations. The one or more processors 710 may also be configured to provide the silencing configuration (e.g., time slot type-based PRS silencing configuration) to the base station and UE, for example, using lower-layer communication.

[0148] TRP 102 can be configured, for example, by instructions received from location server 172 and / or by software, to transmit downlink positioning reference signals (DL-PRS) according to a schedule. According to this schedule, TRP 102 can transmit DL-PRS signals intermittently, for example, periodically at consistent intervals from the initial transmission. TRP 102 can be configured to transmit one or more PRS resource sets. Each resource set includes multiple resources, each resource being a beam transmitted by TRP 102, and each resource is configured with a time slot offset, a symbol offset within the time slot, and the number of consecutive symbols that the resource may occupy. Each PRS resource is associated with an antenna port or beam, transmits DL-PRS signals, and can be repeatedly transmitted across time slots; each transmission is called a repetition, such that there can be multiple repetitions within a resource. Each PRS resource set is associated with a period. Each time all repetitions of all PRS resources in a PRS resource set are configured to be transmitted is called an "instance". Therefore, an "instance" of a PRS resource set is a specified number of repetitions for each resource and a specified number of resources in the resource set, such that the instance is complete once the specified number of repetitions have been sent for each of the specified number of resources. An instance can also be referred to as an "opportunity".

[0149] Figure 8 The diagram illustrates various possible modes of DL PRS resources within a time slot. For example, it shows how PRS resources are scheduled based on when and which resource element is detected (modulated) for transmitting the PRS signal, and the subcarrier. Figure 8 In the transmission schedule shown, columns represent different symbols, rows represent different subcarriers, and black boxes indicate probe resource elements (symbol-subcarrier combinations) used for the TRP. Unprobeged resource elements (not in black boxes) can be probed by one or more other TRPs. For example, as... Figure 8 As shown, within a time slot, DL PRS resources can span 2, 4, 6, or 12 consecutive symbols, with a full-frequency domain interleaved pattern known as a "comb". DL PRS resources can be configured in any higher-level configuration of DL or frequency layer (FL) symbols within a time slot, with a constant energy per resource element (EPRE) for all REs of a given DL PRS resource. Table 2 illustrates various possible patterns of symbols and combs, which... Figure 8 It is shown intuitively in the image.

[0150]

[0151] Table 2

[0152] A collection of PRS resources across a TRP is called a PRS resource set. Each PRS resource in a PRS resource set has the same period and can be 2μ{4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 640, 1280, 2560, 5120, 10240} time slots, where μ = 0, 1, 2, 3. PRS resources in a PRS resource set typically have a common silent mode configuration and the same repetition factor across time slots, such as the repetition value of time slots {1, 2, 4, 6, 8, 16, 32}.

[0153] A set of PRS resource sets spanning one or more TRPs constitutes a location frequency layer. Each PRS resource set within a location frequency layer has the same subcarrier spacing and cyclic prefix. All parameter sets for PRS support the Physical Data Sharing Channel (PDSCH). Each PRS resource set within a location frequency layer also has the same point-A (e.g., common reference point) and takes the absolute radio channel number (ARFCN-ValueNR). PRS resource sets within a location frequency layer have the same DL PRS bandwidth values ​​(e.g., granularity of 4 PRBs, minimum of 24 PRBs, maximum of 272 PRBs), the same starting PRB and center frequency, and the same comb size values.

[0154] Each TRP can have a maximum of 2 PRS resource sets, and each frequency layer can have a maximum of 3 TRPs. Version 16 defines up to 4 positioning frequency layers.

[0155] DL PRS resources can be repeated multiple times within a single instance of a PRS resource set. For example, the number of repetitions can be defined by the PRS-ResourceRepetionFactor information element (IE) and can have values ​​of 1, 2, 4, 6, 8, 16, or 32. Additionally, DL PRS resource repetitions can be offset in time slots between two repeated instances of DL PRS resources with the same PRS resource ID within a single instance of the DL PRS resource set. The offset between DL PRS resource repetitions can be defined by the PRS-ResourceTimeGap and can have values ​​of 1, 2, 4, 8, 16, or 32. The duration spanned by a DL PRS resource set containing DL PRS resources should not exceed the PRS period. DL PRS resource repetitions can be used for Rx beam scans across repetitions, as well as for combined gains to extend coverage. Furthermore, DL resource repetitions can be used, for example, for intra-instance silencing as described below.

[0156] For example, Figure 9The illustration shows an example instance of PRS resource set 900 and a portion of another instance. PRS resource set 900 is shown with four PRS resources R1, R2, R3, and R4, repeated four times with a time interval of one time slot. As shown, in each instance, each resource is repeated four times; for example, resource R1 is repeated four times, and they are separated by one time slot from time slot n to time slot n+3.

[0157] Figure 10 The illustration shows another example instance of PRS resource set 1000, as well as a portion of another instance. PRS resource set 1000 is shown using four PRS resources R1, R2, R3, and R4, repeated 4 times with a time interval of 4 slots. Similar to... Figure 9 As shown in the figure, each resource has four repetitions in each instance, but for PRS resource set 1000, each repetition of the resource is separated by 4 time slots. For example, resource R1 has four repetitions separated by 4 time slots, such as at time slots n, n+4, n+8, and n+12.

[0158] A PRS silent configuration, such as a PRS silent configuration (also known as a PRS silent mode), is a time-based scheduling of when to silence transmission schedules and when not to silence transmission schedules. PRS resources can be silenced, for example, by shutting down (or transmitting at zero power) periodically scheduled PRS transmissions. This can be used to prevent interference, such as interference typically caused by PRS signals from different TRPs overlapping at the same or nearly the same time. A PRS silent configuration can be represented by a bitmap (i.e., a bit string) indicating when a PRS is silenced and when it is not, and therefore the terms bitmap and silent configuration are used interchangeably herein. For example, a bit value "1" can indicate a non-silenced PRS signal transmission, and a bit value "0" can indicate a silenced PRS signal transmission. For example, the bitmap size can be between 2, 4, 8, 16, and 32 bits. Typically, inter-instance silencing and intra-instance silencing are supported.

[0159] Silent configuration can be inter-instance, in which case each bit in the bitmap indicates whether to silence all PRS duplicates of all PRS resources in all instances of the corresponding configurable number of instances. Therefore, when a bit in the bitmap is set to indicate silent, all DL-PRS resources within the DL-PRS resource set instance are silenced.

[0160] Silent configuration can be intra-instance, in which case each bit in the bitmap indicates whether to silent the corresponding PRS duplicates of all PRS resources within the instance. Therefore, each bit in the bitmap corresponds to a single duplicate index for each DL-PRS resource within the DL-PRS resource set instance, and when a bit in the bitmap is set to indicate silent, the duplicates of the indicated DL-PRS resource within the DL-PRS resource set instance are silent. For example, the length of the intra-instance silent bitmap is equal to the DL-PRS-ResourceRepetitionFactor.

[0161] Therefore, for the example of inter-instance silence for a bitmap of 1010, the transmissions of instances 0 and 2 are not silenced, while the transmissions of instances 1 and 3 are silenced. For the same bitmap of 1010 but with intra-instance silence, the 0th and 2nd repeated transmissions within each instance are not silenced, and the 1st and 3rd repeated transmissions within each instance are silenced.

[0162] For example, Figure 11 The illustration shows an example of an inter-instance PRS silencing configuration 1100 for a scenario where four TRPs transmit a PRS with comb-2, two symbols repeated per PRS resource, and two repetitions per instance. As shown, there are four TRPs (TRP1, TRP2, TRP3, TRP4). Each TRP transmits a PRS with comb-2 / 2 symbols repeated twice in consecutive time slots. Comb-K indicates that in each symbol, the scheduled transmission is transmitted for each TRP on every Kth subcarrier, where each TRP uses a different subcarrier for transmission in each symbol. Therefore, different TRPs are frequency-division multiplexed to use different subcarriers to transmit PRS signals, making the PRS signals from simultaneously transmitted different TRPs frequency-orthogonal to help prevent collisions between PRS signals. Furthermore, TRPs can switch subcarriers for different symbols in the repetition (called interleaving) to help fill holes in the frequency domain, thereby helping to eliminate aliases in the time domain. As shown in the figure, TRP1 and TRP2 are represented by black and non-black squares respectively in the first row 1102, while TRP3 and TRP4 are represented by black and non-black squares respectively in the second row 1104. In this example, the two repetitions of each instance are transmitted in consecutive time slots (time slot 0 and time slot 1).

[0163] exist Figure 11In the illustrated inter-instance PRS silencing configuration, each TRP is configured with a 2-bit bitmap, where each bit corresponds to each of the two instances, such as the first instance and the second instance. If the bit value is "1", the TRP is sent in that instance; if the bit value is "0", the TRP silences all duplicate PRS resources in that particular instance. In this example, TRP1 and TRP2 pairs shown in line 1102 have a bitmap silencing configuration of "10", while TRP3 and TRP4 pairs shown in line 1104 have a bitmap silencing configuration of "01". In the illustrated inter-instance silencing, for a DL-PRS resource set instance indicated by the bitmap to be silenced, all duplicate DL-PRS resources within the DL-PRS resource set instance are silenced.

[0164] As can be seen, in the inter-instance PRS silence configuration 1100, UE 104 will need to receive two instances (the first instance and the second instance) in order to obtain PRS from all four TRPs. This is because, in the first instance, when TRP3 and TRP4 are silenced, TRP1 and TRP2 will send PRS in two repetitions (slot 0 and slot 1), while in the second instance, when TRP1 and TRP2 are silenced, only TRP3 and TRP4 will send PRS in two repetitions (slot 0 and slot 1).

[0165] Figure 12 Similar to Figure 11 However, the diagram shows a silent PRS configuration of 1200 within the instance. Therefore, in Figure 12 The diagram illustrates four TRP transmissions with a comb-2 configuration, two symbols repeated for each PRS resource, and two repetitions per instance. Figure 12 In the PRS silencing configuration shown in the instance, each TRP is configured with a 4-bit bitmap, with each bit corresponding to each of the two repetitions in a single instance. If the bit value is "1", the TRP is sent in that repetition index; if the bit value is "0", the TRP is silencing the PRS in that repetition index. In this example, TRP1 and TRP2 pairs shown in line 1202 have a bitmap silencing configuration of "1010", while TRP3 and TRP4 pairs shown in line 1204 have a bitmap silencing configuration of "0101".

[0166] In the illustrated instance-based silence configuration, for example, each repetition of the PRS in slots 0 and 1 is individually indicated by a bitmap to be silenced. Therefore, as shown, the PRS signals from TRP1 and TRP2 are not silenced during the first repetition (slot 0) of the first instance, but are silenced during the second repetition (slot 1) of the first instance. Conversely, the PRS signals from TRP3 and TRP4 are silenced during the first repetition (slot 0) of the first instance, and are not silenced during the second repetition (slot 1) of the first instance. The second instance follows a similar scheduling as the first instance. Therefore, UE 104 can measure the PRS signals from all four TRPs in a single time instance.

[0167] Therefore, as from Figure 11 and Figure 12 It can be seen that by utilizing in-instance silence (such as...) Figure 12 As shown), within a single instance, each TRP is configured with repeating PRS, some of which are silenced according to a silence bitmap of up to 32 bits, since an instance has a repeat length of up to 32. Conversely, for inter-instance silence (such as...), Figure 11 As shown), within an instance, all PRS from a TRP are either silenced or not silenced, and a bitmap (up to 32 bits) is used to control silencing across instances. Therefore, UE104 may not receive PRS from one or more TRPs in a single instance, but will receive PRS from TRPs in subsequent instances.

[0168] In some implementations, inter-instance silencing and intra-instance silencing can be used together. For example, if a DL-PRS silencing mode is provided for both, inter-instance silencing and intra-instance silencing can be combined using logical operations such as logical AND operations, and thus, DL-PRS resources are sent when both inter-instance silencing and intra-instance silencing have a bit value of "1", otherwise they are silenced.

[0169] For example, Figure 13 The diagram illustrates two instances of PRS resource set 1300, which includes four PRS resources R1, R2, R3, and R4, with time intervals of 2 repetitions and 4 time slots. Each of the two repetitions of each resource in each instance is separated by 4 time slots. For example, in the two instances (e.g., instance 0 and instance 1), the two repetitions of resource R1 are separated by 4 time slots, such as at time slots n and n+4.

[0170] An inter-instance bitmap is provided, where each TRP sending PRS resources is configured with a 2-bit bitmap (e.g., "10"). Each bit corresponds to each of the two instances, such as instance 0 and instance 1. If the bit value is "1", all PRS resources are sent in that instance; if the bit value is "0", no PRS resources are sent in that particular instance. Additionally, an intra-instance bitmap is provided, where each TRP sending PRS resources is configured with a 4-bit bitmap (e.g., "1010"). Each bit corresponds to a repeating index within a single instance. If the bit value is "1", all PRS resources in that repeating index are sent; if the bit value is "0", no PRS resources are sent in that particular repeating index.

[0171] As shown in the figure, silent bitmaps between instances and silent bitmaps within instances can be logically combined. Figure 13 As an example, a logical AND function is used to combine the inter-instance silence bitmap and the intra-instance silence bitmap. For instance, if both the inter-instance silence and intra-instance silence bit values ​​are "1", the PRS resource is sent; otherwise, the PRS resource is silenced. Using the logical AND function, the resulting PRS silence bitmap produces a 4-bit bitmap (e.g., "1000"). If needed, other logical functions such as OR, XOR, NAND, NOR, and XNOR can be used to combine the inter-instance silence bitmap and the intra-instance silence bitmap.

[0172] Figure 1A The entities in the illustrated wireless communication system 100 are capable of full-duplex communication. For example, base station 102 may be able to transmit DL signals to one or more UEs while simultaneously receiving UL transmissions from one or more UEs, which may be the same UE or different UEs. Various forms of full-duplex communication are possible, including in-band full-duplex communication, where DL and UL signals are transmitted and received using the same time and frequency resources, and sub-band full-duplex communication, where DL and UL signals are transmitted and received using the same time resources but different frequency resources. Sub-band full-duplex communication is considered full-duplex because, although operating in the time-division duplex (TDD) spectrum, where UL and DL are typically TDD, UL and DL may occur simultaneously in sub-band full-duplex communication. On the other hand, half-duplex communication refers to DL and UL signals being transmitted and received using different time resources.

[0173] For example, Figure 14A and Figure 14B The illustration shows an example of in-band full-duplex (IBFD) communication, where the same frequency resources are used to simultaneously transmit and receive DL and UL signals. For example, Figure 14A IBDD communication 1400 is shown, in which DL signal 1402 and UL signal 1404 are transmitted and received on completely overlapping time and frequency resources. Figure 14B Another example of IBFD communication 1450 is shown, in which DL signal 1452 and UL signal 1454 are transmitted and received on partially overlapping time and frequency resources.

[0174] For example, Figure 15 The illustration depicts another example of full-duplex communication in the form of Subband Full-Duplex (SBFD) communication 1500, sometimes referred to as flexible duplex. As shown, SBFD communication 1500 includes DL signal 1502 and UL signal 1504 transmitted and received simultaneously but in different frequency domains. For example, a guard band 1506 may exist between the separate frequency resources of the DL signal 1502 and the UL signal 1504.

[0175] Figure 16 With Figure 14A , Figure 14B and Figure 15 The illustration shows a contrast between full-duplex communication and half-duplex communication 1600. For example... Figure 16 As shown, half-duplex communication 1600 includes DL signal 1602 and UL signal 1604 transmitted and received at different times, for example, the DL and UL signals do not overlap in the time domain.

[0176] One challenge in achieving full-duplex communication is self-interference. For example, when an entity operates in full-duplex mode, signals transmitted by that entity may interfere with signals received simultaneously.

[0177] Figure 17 An environment 1700 is illustrated as an example, comprising two base stations 102A and 102B communicating with two UEs 104A and 104B. Figure 17 In this diagram, base station 102A operates in full-duplex mode, while base station 102B and UEs 104A and 104B operate in half-duplex mode. Therefore, base station 102A is shown operating in full-duplex mode by simultaneously transmitting DL signal 1702 and receiving UL signal 1722. Base station 102B, operating in half-duplex mode, is shown transmitting DL signal 1712, which may cause interference with base station 102A and UE 104A (shown by dashed lines 1713 and 1715). UEs 104A and UE 104B may operate in half-duplex mode; for example, UE 104A receives DL signal 1702 from base station 102A, and UE 104B transmits UL signal 1722 received by base station 102A. The transmission of UL signal 1722 may cause interference with UE 104A and base station 102B (shown by dashed lines 1723 and 1725).

[0178] As shown by dashed line 1703, because the base station operates in full-duplex mode and transmits and receives signals simultaneously, the transmission of DL signal 1702 by base station 102A may cause self-interference with the reception of UL signal 1722.

[0179] Figure 18 An example illustration is provided for another environment 1800, comprising two base stations 102A and 102B communicating with two UEs 104A and 104B. Figure 18 In this configuration, base stations 102A and 102B operate in full-duplex mode, as do UEs 104A and UE 104B. Therefore, base station 102A is shown communicating with UE 104A, where DL signal 1802 and UL signal 1822 are simultaneously transmitted and received. Similarly, base station 102B is shown communicating with UE 104B, where DL signal 1832 and UL signal 1842 are simultaneously transmitted and received. Figure 18 Interference at base station 102A and UE 104A from base station 102B is shown (shown by dashed lines 1833 and 1835), and interference at base station 102A and UE 104A from UE 104B is shown (shown by dashed lines 1843 and 1845). Additionally, as shown by dashed line 1823, because UE 104A operates in full-duplex mode and transmits and receives signals simultaneously, the transmission of DL signal 1822 by base station 104A may cause self-interference with the reception of UL signal 1802. Self-interference can similarly occur in each of base station 102A, base station 102B, and UE 104B.

[0180] Figure 19A A base station 102 is illustrated as an example communicating with multiple UEs (UE1, UE2, UE3) similar to UE 104. Base station 102 operates across time slots and within time slots in flexible DL / UL operation (e.g., subband full-duplex mode), while UEs UE1, UE2, and UE3 use half-duplex operation. Figure 19B Several time slots, 1902, 1904, 1906, and 1908, are shown as examples during which time slots, Figure 19A The base station 102 shown in the figure utilizes UE1, UE2 and UE3 to transmit DL signals, receive UL signals and transmit both DL signals and receive UL signals.

[0181] As shown in the first time slot 1902, base station 102 can send DL data 1912 to UE1, and UEs UE1, UE2 and UE3 can send UL SRS signal 1914 to base station 102. UL SRS signal 1914 and DL data 1912 do not overlap in time, and therefore, time slot 1902 can be referred to as a half-duplex time slot.

[0182] On the other hand, in time slot 1904, the base station transmits DL data 1922 to UE 1 and DL data 1924 to UE 2 in a separate frequency band, and simultaneously receives UL signal 1926 from UE 3 in a different frequency band (e.g., Physical Uplink Shared Channel (PUSCH)). There is a guard band 1928 between DL data 1922, 1924 and UL signal 1926. Therefore, time slot 1904 is a sub-band full-duplex time slot.

[0183] In time slot 1906, base station 102 similarly transmits DL data 1932 to UE 1, and simultaneously receives UL signal 1934 (e.g., PUSCH) from UE 3 in the overlapping frequency band. Therefore, time slot 1906 is an in-band full-duplex time slot.

[0184] In time slot 1908, base station 102 receives UL signal 1942 from UE3 and does not transmit DL data. Therefore, time slot 1908 is a half-duplex time slot.

[0185] If base station 102 operates in full-duplex mode, DL PRS transmission may cause self-interference in UL reception. For example, for some UE positioning technologies, such as positioning using round-trip time (RTT), both DL and UL positioning reference signals can be measured. Additionally, in some aspects, DL PRS transmission can be transmitted simultaneously with UL reception at a full-duplex base station (i.e., on the same time slot and symbol).

[0186] To mitigate the impact of self-interference from DL PRS transmissions during full-duplex operation, the base station's silence mode can be based, at least in part, on the time slot type in which the PRS resources are transmitted, for example, whether there is a UL transmission scheduled in the same time slot and the same symbol when the PRS resources are transmitted. For instance, using time slot type-based PRS silence, if the time slot type is in-band full-duplex, for example, where DL transmission and UL reception occur simultaneously using the same frequency resources, the silence configuration can silence the PRS in the in-band full-duplex time slots to prevent self-interference with UL reception caused by DL PRS transmissions.

[0187] If the time slot type is sub-band full-duplex, for example, DL transmission and UL reception occur simultaneously but using different frequency resources, the silence configuration can be based on the ability of base station 102 to perform interference cancellation on the UL signal received simultaneously with the PRS transmission. For example, in some implementations, the self-interference cancellation capability of base station 102 can be provided by base station 102 to location server 172. For example, if the guard band between the UL signal and / or DL ​​PRS is sufficient, and base station 102 can perform self-interference cancellation, the silence configuration may not silence the PRS transmission in the sub-band full-duplex time slot. However, if base station 102 cannot perform self-interference cancellation, the silence configuration may silence the PRS transmission in the sub-band full-duplex time slot so as not to interfere with the received UL signal. As is known in the art, self-interference cancellation can, for example, eliminate the transmitted signal at the receiver by creating an accurate model of the signal and using it to generate a signal that leaves only the desired UL signal when combined with the received signal (including the UL signal and interference from the DL PRS transmission).

[0188] If the time slot in which DL PRS is sent is not a full-duplex time slot, for example, a half-duplex time slot, then the silence configuration needs to silence DL PRS to avoid self-interference. However, DL PRS can be silenced in other ways, such as inter-instance silence or intra-instance silence.

[0189] Figure 19C Illustrated with examples Figure 19B Similarly, the elements marked in the similar locations are the same, but it is further shown that base station 102 transmits DL PRS1915, 1925 and 1935 in time slots 1902 and 1904 respectively. Figure 19C The PRS silent configuration based on time slot type is further illustrated.

[0190] Figure 19C The diagram illustrates bitmaps for PRS resources 1915, 1925, and 1935 based on the time slot type in which the PRS resource is transmitted. For example, time slot 1902 is a half-duplex time slot type, and therefore, the bit value of PRS resource 1915 in time slot 1902 is "1", indicating that PRS resource 1915 can be transmitted because PRS resource 1915 will not cause self-interference to the reception of UL signal 1914. However, it should be understood that PRS resource 1915 can still be silenced, for example, based on inter-instance silence or intra-instance silence.

[0191] Time slot 1904 is a sub-band full-duplex time slot type because DL signals 1922, 1924 and PRS resource 1925 are transmitted simultaneously with the reception of UL signal 1926, but using different frequency resources. Depending on the self-interference cancellation capability of base station 102, DL signals 1925 can generate self-interference with UL signal 1926. Therefore, as shown, the bit value of PRS resource 1925 in time slot 1904 is either "0" or "1". For example, if base station 102 cannot perform self-interference cancellation, the bit value is "0", indicating that PRS source 1925 is silenced. If base station 102 can perform self-interference cancellation, the bit value can be "1", indicating that PRS source 1925 is not silenced. However, it should be understood that even if base station 102 can perform self-interference cancellation, PRS resource 1925 can still be silenced, for example, based on inter-instance silence or intra-instance silence.

[0192] Time slot 1906 is an in-band full-duplex time slot type; therefore, PRS resource 1935 can cause self-interference with UL signal 1934. Therefore, the bit value for PRS resource 1935 in time slot 1906 is "0", indicating that PRS resource 1935 is muted.

[0193] In some implementations, slot-type silence can be used in conjunction with one or more of inter-instance silence and intra-instance silence. For example, a slot-type silence configuration can use logical operations such as logical AND operations in combination with one or both of the inter-instance silence and intra-instance silence configurations. For instance, if the slot type is half-duplex, the slot-type silence bit is "1", indicating that PRS silence is determined by one or more of the inter-instance silence and intra-instance silence configurations. On the other hand, if the slot type is full-duplex and the slot-type silence bit is "0", then PRS transmission is silenced.

[0194] For example, Figure 20 The diagram illustrates two instances of PRS resource set 2000, which includes four PRS resources R1, R2, R3, and R4, with a time interval of 2 repetitions and 4 time slots. Each of the two repetitions of each resource in each instance is separated by 4 time slots. For example, in the two instances (e.g., instance 0 and instance 1), the two repetitions of resource R1 are separated by 4 time slots, such as at time slots n and n+4.

[0195] As shown in the figure, similar to Figure 13A bitmap between instances is provided, where each TRP sending PRS resources is configured with a 2-bit bitmap (e.g., "10"). Each bit corresponds to each of the two instances, such as instance 0 and instance 1. If the bit value is "1", all PRS resources are sent in that instance; if the bit value is "0", no PRS resources are sent in that particular instance. Additionally, a bitmap within instances is provided, where each TRP sending PRS resources is configured with a 4-bit bitmap (e.g., "1010"). Each bit corresponds to a repeating index within a single instance. If the bit value is "1", all PRS resources in that repeating index are sent; if the bit value is "0", no PRS resources are sent in that particular repeating index.

[0196] Additionally, a slot-type silence bitmap is provided, wherein each slot for transmitting PRS resources is configured with a 16-bit bitmap (e.g., "1010101010101010"). Each bit corresponds to a separate slot. If the value of the bit is "1", the PRS resources in the corresponding slot can be transmitted, and if the value of the bit is "0", the PRS resources in the corresponding slot are silenced.

[0197] As shown in the figure, the slot-type silent bitmap can be logically combined with one or both of the inter-instance silent bitmap and the intra-instance silent bitmap. Figure 20 As an example, a logical AND function is used to combine the slot-type silence bitmap, the inter-instance silence bitmap, and the intra-instance silence bitmap. For instance, if the slot-type silence, inter-instance silence, and intra-instance silence bit values ​​are all "1", the PRS resource is sent; otherwise, the PRS resource is silenced. Using the logical AND function, the resulting PRS silence bitmap produces a 16-bit bitmap (e.g., "1010000000000000"). If needed, other logical functions such as OR, XOR, NAND, NOR, and XNOR can be used to combine the slot-type silence with one or more of the inter-instance silence bitmaps and intra-instance silence bitmaps.

[0198] The slot-type silent mode can be dynamically configured. For example, in a full-duplex system, there are flexible DL and UL operations in time, such as across slots and within slots, and across UEs, such as... Figure 19A , Figure 19B and Figure 19C As shown in the diagram. In other words, the time slot type can be quickly changed between half-duplex and full-duplex based on UL permission and DL PRS scheduling. However, traditionally, the silent mode of the base station is configured through higher layers, such as via LPP or RRC messaging, which can introduce large signaling delays.

[0199] Therefore, to achieve low-latency configuration of slot-type silent mode, a lower-layer trigger can be used to dynamically indicate the bitmap of slot-type silent. For example, a Media Access Control-Control Element (MAC-CE) or Downlink Control Information (DCI) trigger can be used. For instance, due to the dynamic temporal configuration of half-duplex and full-duplex slots (e.g., across and within slots), slot-type silent can be configured using lower-layer triggers (such as MAC-CE and DCI triggers) if the DLR PRS is similarly triggered. Slot-based PRS silent configuration using lower-layer triggers enables rapid silent changes, achieving a low-latency system similar to lower-layer triggered PRS resources.

[0200] Therefore, for example, location server 172 can be configured to implement slot-type silence, for example, based on the type triggered by the location signal. For example, location server 172 can be configured to cause base station 102 to perform slot-type silence only when MAC-CE-based DL PRS triggering and / or DCI-based DL PRS triggering is used (e.g., only sending slot-type silence configuration to base station 102). Location server 172 can determine that MAC-CE-based DL PRS and / or DCI-based DL PRS has been triggered (e.g., triggered by serving base station 102) and respond by enabling slot-type silence, for example by sending slot-type silence configuration to base station 102, or by sending an instruction to base station 102 (e.g., in MAC-CE or DCI communication) to use slot-type silence configuration (e.g., previously sent to or generated by base station 102). This on-demand triggering of slot-type silence helps ensure high-quality performance because slot-type silence can be changed quickly (silent to non-silent and vice versa), making it a low-latency technique. DL PRS based on MAC-CE and DCI is also a low-latency technique.

[0201] In addition to slot-type silence, intra-slot silence can be used. For example, the silence configuration can vary across different slots and / or resources. In one example, the silence configuration can be intra-slot, in which case each bit in the bitmap indicates whether to silence one or more repeating corresponding symbols or symbol sets for one or more PRS resources. Different slots can have different intra-slot silence configurations.

[0202] For example, Figure 21 The illustration shows the intra-slot PRS silence for a scenario used in Comb-2 transmission, with six symbols repeated each time, two repetitions per instance, and a 3-bit silence bitmap. Figure 21A transmission schedule 2100 for two time slots is shown, which is part of a larger transmission schedule for transmitting signals including positioning signals. Here, the transmission schedule indicates that a portion of the positioning signals from the two TRPs (TRP1 and TRP2) is carried by symbols 3-8 in each of the first time slot 2101 and the second time slot 2102. A silence configuration 2120 is represented by bitmap portions 2121 and 2122 of time slots 2101 and 2102, respectively. Each bit of the bitmap representing the silence configuration 2120 corresponds to a corresponding segment of the respective time slot 2101 or 2102. In this example, each segment is of equal size and corresponds to an intra-slot symbol group, each symbol indicating all resource elements to be probed for the transmission schedule on the corresponding symbol set. Different intra-slot groups can be identical (i.e., intra-slot repetitions with the same probe resource element pattern) or different (i.e., different resource element patterns on the symbols used, even if these symbols probe all the same subcarriers). In this example, the number of in-slot groups G equals N / K, where N is the length of the PRS resource in terms of the number of symbols in the slot (here, six symbols), K is the comb type (i.e., the number of combs), and the number of slot segments M equals G (M = G). Therefore, as shown in the figure, with a PRS resource length of 6 symbols and a comb type of 2, there are three in-slot groups (G = 3), each with two bits, and each bitmap portion has three bits (M = 3). Each in-slot group has one bit, meaning that each segment corresponding to a bit in the bitmap also corresponds to one in-slot group.

[0203] Silent configuration 2120 is an example in terms of bit-to-symbol mapping and the bit pattern shown, and other examples can be used. For example, in another implementation, silent configuration 2130 can be used, where each time slot segment corresponds to bits in bitmap portions 2131, 2132 representing silent configuration 2130. Each time slot segment corresponds to a single symbol in the corresponding time slots 2101, 2102 (instead of groups of symbols within a time slot as in silent configuration 2120). In this example, the number of time slot segments M is greater than the number of groups within a time slot G (M>G) and equal to N, which is the length of the PRS in terms of the number of symbols in the time slot. Therefore, bitmap portions 2131, 2132 each have N bits, where N is the length of the PRS in terms of the number of symbols in the time slot.

[0204] As another example, the silent configuration within a time slot can vary across different time slots and / or resources.

[0205] For example, Figure 22The diagram illustrates an intra-slot silent configuration (which may be referred to as an intra-resource silent configuration) that can have different silent configurations for different time slots and / or resources. The transport schedule 2200 has a comb-2 configuration, with two symbols per group per time slot, but four symbols per repetition, and eight repetitions per instance. As shown, the silent configuration 2220 is represented by bitmap portions 2211, 2212, and 2218 of the shown time slots, namely, the first time slot 2201, the second time slot 2202, and the eighth time slot 2208. Bitmap portion 2211 is different from bitmap portions 2212 and 2218, which are identical. In this example, each repetition has four bits, each instance repeats eight times, and the bitmap has 32 bits. Intra-slot silent configurations may differ for different resources. For example, one silent configuration may be applied to one or more resources, while another silent configuration may be applied to one or more other resources, even within the same time slot. For example, silent configuration 2220 can be applied to resources from TRP1 and TRP2, or it can be applied to resources from TRP1, and another silent configuration 2230 can be applied to resources from TRP2. Figure 22 The configuration shown is just an example, and other silent configurations with different silent configurations for different time slots can be used.

[0206] Bitmaps used for intra-slot silence configurations can contain more bits than bitmaps used for other silence configuration types (e.g., inter-instance silence, intra-instance silence, and slot-type silence). For example, for intra-slot silence where each segment corresponds to a group of symbols within the slot (i.e., indicating that all subcarriers should be probed), B bits are used, where B = N / K, where N is the length of the PRS in terms of the number of symbols in the slot, and K is the comb type (i.e., the number of combs). For intra-slot silence where each segment corresponds to a symbol, N bits are used for each slot silence configuration, where N is the length of the PRS in terms of the number of symbols in the slot.

[0207] In some implementations, slot-type silence can be used in conjunction with intra-slot silence, as well as with one or more of inter-instance silence and intra-instance silence. For example, slot-type silence configurations can be combined with intra-slot silence configurations, and can be further combined with one or both of inter-instance silence and intra-instance silence configurations using logical operations (such as logical AND operations).

[0208] For example, Figure 23The diagram illustrates two instances of PRS resource set 2300, which includes four PRS resources R1, R2, R3, and R4, with a time interval of 2 repetitions and 4 time slots. Each of the two repetitions of each resource in each instance is separated by 4 time slots. For example, in the two instances (e.g., instance 0 and instance 1), the two repetitions of resource R1 are separated by 4 time slots, such as at time slots n and n+4. Figure 23 Similar to the discussion above Figure 20 However, the first repetition of the extended fourth resource R4 is further shown, and three intra-slot groups with intra-slot silence applied are shown, here groups 2311, 2312, and 2313. It should be understood that, for simplicity, the first repetition of the fourth resource R4 is used to illustrate intra-slot silence, and intra-slot silence can be similarly applied to each resource slot.

[0209] For example, logical functions such as AND operations can be used to combine slot-type silence with one or more of the following: slot-type silence, intra-slot silence, inter-instance silence, and intra-instance silence. Other logical functions, such as OR, XOR, NAND, NOR, and XNOR, can be used if needed to combine slot-type silence with one or more of the following: slot-type silence, intra-slot silence, inter-instance silence bitmap, and intra-instance silence bitmap.

[0210] Figure 24 This is a message flow 2400 illustrating the message passing between location server 172, base station 102A and base station 102B, and UE 104 as discussed herein, for supporting UE location using PRS silence (including slot-type PRS silence). For example, location server 172 could be an LMF 270, and base stations 102A and 102B could be gNBs. Although two base stations are shown, it should be understood that additional (or fewer) base stations can be used. It should be understood that messages related to supporting UE location using PRS silence (including slot-type silence) are shown, but additional messages including traditional LPP messages can be used in message flow 2400.

[0211] At phase 1, base stations 102A and 102B can provide PRS configuration information to location server 172. The PRS configuration information may include information related to PRS resources (PRS beams) and may also include the base station's self-interference cancellation capability.

[0212] At phase 2, location server 172 can generate PRS scheduling and auxiliary data for UE 104 positioning based on PRS configurations including silent configurations received from base stations 102A and 102B. For example, location server 172 can generate inter-instance silent and / or intra-instance silent configurations.

[0213] At phase 3, location server 172 can transmit PRS schedules to base stations 102A and 102B. The PRS schedule includes PRSs to be transmitted in multiple time slots. These time slots can be full-duplex time slots where downlink transmission and uplink reception occur simultaneously, or half-duplex time slots where downlink transmission and uplink reception do not occur simultaneously.

[0214] At phase 4, location server 172 may transmit auxiliary data to UE 104, for example, in an LPP auxiliary data message. The auxiliary data may include PRS configuration information, including multiple silence configurations such as inter-instance silence and / or intra-instance silence configurations. The auxiliary data may also include the locations of base stations 102A and 102B, for example, for use in UE-based positioning procedures.

[0215] At phase 5, base station 102A can obtain a silent configuration based at least in part on the slot type of the slot in which the DL PRS is scheduled. For example, the slot type silent configuration can be based on the slot type in which the DL PRS is to be transmitted, such as... Figures 14A-20 As discussed in [the document]. For example, the time slot type can be determined based on UL permission and DL PRS scheduling. For instance, a time slot type silence configuration for DL ​​PRS transmitted in half-duplex time slots can allow PRS transmission, while DL PRS transmitted in in-band full-duplex time slots is silenced, and DL PRS transmitted in sub-band full-duplex time slots can be transmitted if base station 102A can self-cancel interference, and silenced if base station 102A cannot self-cancel interference. Base station 102A can also obtain information about [the following]. Figures 21-23 The discussed time slot silence configuration. In some implementations, the silence configuration (e.g., time slot type silence or time slot type silence and time slot silence) can be determined by base station 102A, or obtained from location server 172, for example by providing location server 172 with silence-related configuration information such as UL authorization and DL PRS scheduling, and location server 172 can determine the time slot type silence or time slot silence configuration, which is provided to base station 102A, for example, using lower-layer signaling, and can be provided to UE 104 using lower-layer signaling.

[0216] At phase 6, base station 102A can send the silence configuration information determined in phase 5 to UE 104 and location server 172. Lower-layer signaling (e.g., MAC-CE and / or DCI triggering) can be used to send the silence configuration information.

[0217] At stage 7, location server 172 may request location information from UE 104, for example, in an LPP request location information message.

[0218] At phase 8, base stations 102A and 102B transmit DL PRS in multiple time slots consistent with the PRS configuration, including the silent configuration determined at phases 2 and 5. In some implementations, DL PRS is transmitted based on a combination of PRS silent configurations (e.g., determined using a logical function such as an AND function).

[0219] At stage 9, UE 104 uses the DL PRS received at stage 8 to perform location measurements. For example, the location measurements could be AOD (Aspect-Oriented Distance) or Rx-Tx time difference measurements for RTT-based positioning, or RSTD (Responsive Time Difference) measurements for TDOA-based positioning. In some implementations, UE 104 can transmit UL SRS (Universal Variable Time Difference) measurements of Rx-Tx time difference for base stations 102A and 102B for RTT-based positioning. In some implementations, UE 104 can further use the location measurements and the locations of base stations 102A and 102B received in the auxiliary data of stage 3 to determine a location estimate (e.g., during UE-based positioning).

[0220] At phase 10, UE 104 may transmit location measurements and / or determined location estimates to the location server in the LPP Location Information Message.

[0221] At stage 11, location server 172 can determine or verify the location of UE 104 based on the location information received in the message at stage 10.

[0222] Figure 25 It shows a method for using, in a manner consistent with the disclosed implementation, by, such as Figure 1A and Figure 6 The flowchart illustrates an exemplary process 2500 performed by the base station of base station 102 or base station 600 to support the location of user equipment (UE) in a wireless network.

[0223] At box 2502, the base station receives a schedule for a Positioning Reference Signal (PRS) to be transmitted in multiple time slots, wherein the multiple time slots have time slot types including full-duplex time slots in which downlink transmission and uplink reception occur simultaneously, and half-duplex time slots in which downlink transmission and uplink reception do not occur simultaneously, for example as... Figure 24 As shown at stage 3. The components for scheduling the reception of Position Reference Signals (PRS) to be transmitted in multiple time slots may include a transceiver 615 and one or more processors 610 having dedicated hardware or executable code or software instructions 612 in implementation memory 611. These components include... Figure 6The positioning session module 672 in the base station 600 shown has multiple time slots having time slot types including full-duplex time slots in which downlink transmission and uplink reception occur simultaneously, and half-duplex time slots in which downlink transmission and uplink reception do not occur simultaneously.

[0224] At 2504, the base station obtains a silent configuration for the PRS in multiple time slots, wherein the silent configuration is at least partially based on the time slot type, such as... Figure 24 As shown in stage 5. For example, a silent configuration can be received from a location server, such as... Figure 24 This is discussed in stage 5. In another example, the silent configuration is generated by the base station, and, for example, the base station can transmit the silent configuration to the location server, such as... Figure 24 The components discussed in phases 5 and 6. The components for obtaining a silent configuration for PRS in multiple time slots may include a transceiver 615 and one or more processors 610 having executable code or software instructions 612 in dedicated hardware or implementation memory 611, such as... Figure 6 The base station 600 shown has a silence module 674, wherein the silence configuration is at least partially based on the time slot type.

[0225] At box 2506, the base station transmits a silent configuration to the UE, for example, such as... Figure 24 As shown in stage 5. For example, silent configuration can be transmitted to the UE in a Media Access Control-Control Element (MAC-CE) or Downlink Control Information (DCI). Components for transmitting silent configuration to the UE may include a transceiver 615 and one or more processors 610 having executable code or software instructions 612 in dedicated hardware or implementation memory 611, such as... Figure 6 The silent module 674 in the base station 600 shown.

[0226] In one implementation, the full-duplex time slot can be an in-band full-duplex time slot, in which downlink transmission and uplink reception occur simultaneously and have the same frequency resources. The silence configuration silences the PRS in the in-band full-duplex time slot, for example... Figure 19C As shown in the image.

[0227] In one implementation, the full-duplex time slot can be a sub-band full-duplex time slot, in which downlink transmission and uplink reception occur simultaneously but on different frequency resources. The silent configuration for the PRS in the sub-band full-duplex time slot is based on the base station's ability to perform interference cancellation on uplink signals received simultaneously with the PRS transmission, for example... Figure 19CAs shown. For example, when the base station is unable to perform self-interference cancellation on uplink signals received simultaneously with the PRS transmission, the silence configuration silences the PRS in the subband full-duplex time slot. In some implementations, the base station transmits an indication to the location server of its ability to perform self-interference cancellation on uplink signals received simultaneously with the PRS transmission, for example, as... Figure 25 As shown in stage 1.

[0228] In one implementation, the silent configuration for PRS is at least partially based on the slot type by a slot type silent configuration indicating whether PRS is silent in each slot based on the slot type, and also based on a UE of at least one of inter-instance silent configuration, intra-instance silent configuration, or a combination thereof, for example, such as Figure 24 and Figure 20 and Figure 23 This is discussed in section 5. For example, the silent configuration for PRS can be a logical combination of at least one of slot-type silent configuration and inter-instance silent configuration, intra-instance silent configuration, or a combination thereof, such as... Figure 24 and Figure 20 and Figure 23 The five stages discussed here.

[0229] In one implementation, the silence configuration for the PRS is at least partially based on the time slot type by using a time slot type silence configuration for each time slot based on an indication of whether the PRS silence is based on the time slot type. The base station can also obtain an intra-time slot silence configuration indicating whether to silence each of multiple PRS resource segments within a time slot, wherein the silence configuration for the PRS is also based on an intra-time slot configuration, for example, such as... Figure 24 and Figure 23 The components discussed in stage 5. The components used to obtain the in-slot silence configuration indicating whether to silence each of the multiple time-slot PRS resource segments may include a transceiver 615 and one or more processors 610 having executable code or software instructions 612 in dedicated hardware or implementation memory 611, such as... Figure 6 The silent module 674 in the base station 600 shown.

[0230] In one implementation, the base station can also transmit PRS to the UE in multiple time slots, for example, Figure 24 The components discussed in stage 8. Components for transmitting PRS to the UE in multiple time slots may include a transceiver 615 and one or more processors 610 having executable code or software instructions 612 in dedicated hardware or implementation memory 611, such as... Figure 6 The positioning session module 672 in the base station 600 shown.

[0231] Figure 26It shows a method for using, in a manner consistent with the disclosed implementation, by, such as Figure 1A and Figure 7 The flowchart illustrates an exemplary process 2600 performed by the base station of location server 172 or location server 700 to support the location of user equipment (UE) in a wireless network.

[0232] At box 2602, the location server generates a schedule of Location Reference Signals (PRS) to be transmitted by the base station in multiple time slots, wherein the multiple time slots have time slot types including full-duplex time slots in which downlink transmission and uplink reception occur simultaneously, and half-duplex time slots in which downlink transmission and uplink reception do not occur simultaneously, for example as... Figure 24 As shown at stage 2. The components used to generate a scheduling mechanism for a Positioning Reference Signal (PRS) to be transmitted by the base station in multiple time slots may include a transceiver 715 and one or more processors 710 having executable code or software instructions 712 in dedicated hardware or implementation memory 711. These components include... Figure 7 The location session module 772 in the location server 700 shown has multiple time slots with time slot types including full-duplex time slots in which downlink transmission and uplink reception occur simultaneously, and half-duplex time slots in which downlink transmission and uplink reception do not occur simultaneously.

[0233] At 2604, the location server generates a silent configuration for the PRS in multiple time slots for the base station, wherein the silent configuration is at least partially based on the time slot type, such as... Figure 24 As discussed in stage 5. For example, a silent configuration for PRS based at least in part on the time slot type can be generated in response to determining that a Media Access Control-Control Element (MAC-CE) or Downlink Control Information (DCI) PRS trigger is in use. Components for generating silent configurations for PRS in multiple time slots for a base station may include a transceiver 715 and one or more processors 710 having executable code or software instructions 712 in dedicated hardware or implementation memory 711, such as Figure 7 The location server 700 shown has a silent module 774, where the silent configuration is at least partially based on the time slot type.

[0234] At box 2606, the location server transmits the silent configuration to the base station, for example, as follows: Figure 24 As discussed in stage 5. Components for transmitting silent configuration to the base station may include a transceiver 715 and one or more processors 710 having executable code or software instructions 712 in dedicated hardware or implementation memory 711, such as... Figure 7 The silent module 774 in the location server 700 shown.

[0235] At box 2608, the location server transmits the silent configuration to the UE, for example, as follows: Figure 24 The components discussed in phases 5 and 6. The components used to transmit silent configuration to the UE may include a transceiver 715 and one or more processors 710 having dedicated hardware or executable code or software instructions 712 in implementation memory 711, such as... Figure 7 The silent module 774 in the location server 700 shown.

[0236] In one implementation, the full-duplex time slot can be an in-band full-duplex time slot, in which downlink transmission and uplink reception occur simultaneously and have the same frequency resources. The silence configuration silences the PRS in the in-band full-duplex time slot, for example... Figure 19C As shown in the image.

[0237] In one implementation, the full-duplex time slot can be a sub-band full-duplex time slot, in which downlink transmission and uplink reception occur simultaneously but on different frequency resources. The silent configuration for the PRS in the sub-band full-duplex time slot is based on the base station's ability to perform interference cancellation on uplink signals received simultaneously with the PRS transmission, for example... Figure 19C As shown. For example, when the base station is unable to perform interference cancellation on uplink signals received simultaneously with the PRS transmission, the silence configuration silences the PRS in the subband full-duplex time slot. In one implementation, for example, the location server receives an indication of the base station's ability to perform self-interference cancellation on uplink signals received simultaneously with the PRS transmission, for example, as... Figure 24 As discussed in Phase 1, components for receiving an indication of a base station's ability to perform self-interference cancellation on uplink signals received simultaneously with the transmission of PRS may include a transceiver 715 and one or more processors 710 having dedicated hardware or executable code or software instructions 712 in memory 711. These components include... Figure 7 The silent module 774 in the location server 700 shown.

[0238] In one implementation, the silent configuration for PRS is at least partially based on the slot type by a slot type silent configuration indicating whether PRS is silent in each slot based on the slot type, and also based on a UE of at least one of inter-instance silent configuration, intra-instance silent configuration, or a combination thereof, for example, such as Figure 24 and Figure 20 and Figure 23 This is discussed in section 5. For example, the silent configuration for PRS can be a logical combination of at least one of slot-type silent configuration and inter-instance silent configuration, intra-instance silent configuration, or a combination thereof, such as... Figure 24 and Figure 20and Figure 23 The five stages discussed here.

[0239] In one implementation, the silent configuration for PRS is at least partially based on the time slot type by using a time slot type silent configuration for each time slot based on an indication of whether PRS silence is based on the time slot type. The location server can also generate an intra-time slot silent configuration indicating whether to silence each of multiple PRS resource segments within a time slot, wherein the silent configuration for PRS is also based on an intra-time slot configuration, for example, such as... Figure 24 and Figure 23 The components discussed in stage 5. The components used to generate an in-slot silence configuration indicating whether to silence each of the multiple time-slot PRS resource segments may include a transceiver 715 and one or more processors 710 having executable code or software instructions 712 in dedicated hardware or implementation memory 711, such as... Figure 7 The silent module 774 in the location server 700 shown.

[0240] Figure 27 It shows a method for using, in a manner consistent with the disclosed implementation, by, such as Figure 1A and Figure 5 The flowchart shows an exemplary process 2700 performed by the UE 104 or UE 500 to support the location of a user equipment (UE) in a wireless network.

[0241] At box 2702, the UE can receive a schedule of Positioning Reference Signals (PRS) to be transmitted by the base station in multiple time slots, wherein the multiple time slots have time slot types including full-duplex time slots in which downlink transmission and uplink reception by the base station occur simultaneously, and half-duplex time slots in which downlink transmission and uplink reception by the base station do not occur simultaneously, for example, as Figure 24 The components discussed in phase 4. The scheduling components for receiving Positioning Reference Signals (PRS) to be transmitted by the base station in multiple time slots may include a transceiver 515 and one or more processors 510 having dedicated hardware or executable code or software instructions 512 in implementation memory 511. These components include... Figure 5 The positioning session module 572 in the UE 500 shown has multiple time slots having time slot types including full-duplex time slots in which downlink transmission and uplink reception by the base station occur simultaneously, and half-duplex time slots in which downlink transmission and uplink reception by the base station do not occur simultaneously.

[0242] At 2704, the UE receives a silent configuration for the PRS in multiple time slots, wherein the silent configuration is at least partially based on the time slot type, such as... Figure 24As discussed in stage 6. For example, the silent configuration may be received from the base station in the Media Access Control-Control Element (MAC-CE) or Downlink Control Information (DCI). Components for receiving silent configurations for PRS in multiple time slots may include a transceiver 515 and one or more processors 510 having executable code or software instructions 512 in dedicated hardware or implementation memory 511, such as... Figure 5 The positioning session module 572 in the UE 500 shown has a silent configuration that is at least partially based on the slot type.

[0243] At box 2706, the UE receives PRS from the base station using a silent configuration, for example, as follows: Figure 24 The components discussed in stages 8 and 9. The components for receiving PRS from a slave station using a silent configuration may include a transceiver 515 and one or more processors 510 having dedicated hardware or executable code or software instructions 512 in implementation memory 511, such as... Figure 5 The location session module 572 in the UE 500 shown.

[0244] In one implementation, the full-duplex time slot can be an in-band full-duplex time slot, in which downlink transmission and uplink reception by the base station occur simultaneously and have the same frequency resources. The silence configuration silences the PRS in the in-band full-duplex time slot, for example... Figure 19C As shown in the image.

[0245] In one implementation, the full-duplex time slot can be a sub-band full-duplex time slot, in which downlink transmission and uplink reception by the base station occur simultaneously but on different frequency resources. The silent configuration for the PRS in the sub-band full-duplex time slot is based on the base station's ability to perform interference cancellation on uplink signals received simultaneously with the PRS transmission, for example... Figure 19C As shown. For example, when the base station is unable to cancel the interference of uplink signals received simultaneously with the transmission of PRS, the silence configuration silences the PRS in the subband full-duplex time slot.

[0246] In one implementation, the silent configuration for PRS is at least partially based on the slot type by a slot type silent configuration indicating whether PRS is silent in each slot based on the slot type, and also based on a UE of at least one of inter-instance silent configuration, intra-instance silent configuration, or a combination thereof, for example, such as Figure 24 and Figure 20 and Figure 23 The silent configuration for PRS is a logical combination of at least one of slot-type silent configuration and inter-instance silent configuration, intra-instance silent configuration, or a combination thereof, such as... Figure 24 and Figure 20 and Figure 23 The five stages discussed here.

[0247] In one implementation, the silent configuration for PRS is at least partially based on the slot type, which indicates whether PRS silence is configured based on the slot type in each slot, and on the UE indicating whether silent configuration is configured within each slot of the PRS resource segment in multiple slots, for example, Figure 24 and Figure 23 The five stages discussed here.

[0248] Throughout this specification, references to “an example,” “example,” “some examples,” or “exemplary implementation” mean that a particular feature, structure, or characteristic described in conjunction with a feature and / or example may be included in at least one feature and / or example of the claimed subject matter. Therefore, the phrases “in an example,” “example,” “in some examples,” or “in some implementations,” or other similar phrases appearing throughout this specification, or in different places, do not necessarily refer to the same feature, example, and / or limitation. Furthermore, a particular feature, structure, or characteristic may be combined in one or more examples and / or features.

[0249] Certain portions of the detailed description included herein are presented in accordance with an algorithmic or symbolic representation of the operation of binary digital signals stored in the memory of a particular device or dedicated computing device or platform. In the context of this particular specification, the terms "particular device," etc., include a general-purpose computer that, once programmed, performs specific operations according to instructions from program software. Algorithm descriptions or symbolic representations are technical examples used by those skilled in the art of signal processing or related fields to convey the essence of their work to others skilled in the art. An algorithm herein is generally considered to be a self-consistent sequence of operations or similar signal processing that leads to a desired result. In this context, the operation or processing involves physical manipulation of physical quantities. Typically, though not always, these quantities may take the form of electrical or magnetic signals that can be stored, transmitted, combined, compared, or otherwise controlled. For general reasons, it has sometimes proven convenient to refer to such signals as bits, data, values, elements, symbols, characters, terms, numbers, numerals, etc. However, it should be understood that all such terms, or similar terms, will be associated with appropriate physical quantities and are merely convenient notations. Unless otherwise specified, as is apparent from the discussion herein, it should be understood that throughout this specification, the use of terms such as “processing,” “calculating,” “determining,” etc., refers to the actions or processes of a particular device, such as a dedicated computer, a dedicated computing device, or a similar dedicated electronic computing device. Therefore, in the context of this specification, a dedicated computer or similar dedicated electronic computing device is capable of controlling or transforming signals, which are generally represented as physical electronic or magnetic quantities within the memory, registers, or other information storage devices, transmitting devices, or display devices of the dedicated computer or similar dedicated electronic computing device.

[0250] In the foregoing detailed description, numerous specific details have been set forth to provide a thorough understanding of the claimed subject matter. However, those skilled in the art will understand that the claimed subject matter can be practiced without these specific details. In other instances, methods and apparatus known to those skilled in the art have not been described in detail to avoid obscuring the claimed subject matter.

[0251] The terms “and,” “or,” and “and / or” as used herein can have a variety of meanings, which are expected to depend at least in part on the context in which they are used. Typically, when used with a list of related terms (such as A, B, or C), “or” is intended to mean A, B, and C in an inclusive sense, and A, B, or C in an exclusive sense. Additionally, the term “one or more” as used herein can be used to describe any feature, structure, or property in the singular, or can be used to describe multiple or certain other combinations of features, structures, or properties. However, it should be noted that this is merely an illustrative example, and the claimed subject matter is not limited to this example.

[0252] While features currently considered exemplary have been shown and described, those skilled in the art will understand that various other modifications and equivalents may be made without departing from the claimed subject matter. Furthermore, numerous modifications may be made to suit specific circumstances and the viewpoint of the claimed subject matter without departing from the central concepts described herein.

[0253] Given that the described embodiments may include different combinations of features, the following numbered clauses describe implementation examples:

[0254] Clause 1. A method for supporting the location of a user equipment (UE) served by a base station in a wireless network, the method comprising: receiving a schedule of location reference signals (PRS) to be transmitted in a plurality of time slots, wherein the plurality of time slots have time slot types including full-duplex time slots in which downlink transmission and uplink reception occur simultaneously and half-duplex time slots in which downlink transmission and uplink reception do not occur simultaneously; obtaining a silent configuration for the PRS in the plurality of time slots, wherein the silent configuration is at least partially based on the time slot type; and transmitting the silent configuration to the UE.

[0255] Clause 2. The method according to Clause 1, wherein the full-duplex time slot includes an in-band full-duplex time slot in which downlink transmission and uplink reception occur simultaneously and have the same frequency resources, wherein the silence configuration silences the PRS in the in-band full-duplex time slot.

[0256] Clause 3. The method according to any one of Clauses 1-2, wherein the full-duplex time slot includes a sub-band full-duplex time slot, in which downlink transmission and uplink reception occur simultaneously but on different frequency resources, wherein the silent configuration for the PRS in the sub-band full-duplex time slot is based on the base station’s ability to perform self-interference cancellation on uplink signals received simultaneously with the transmission of the PRS.

[0257] Clause 4. The method of Clause 3, wherein when the base station is unable to perform self-interference cancellation on uplink signals received simultaneously with the transmission of PRS, the silence configuration silences the PRS in the subband full-duplex time slot.

[0258] Clause 5. The method according to any one of Clauses 3-4, wherein the base station transmits to the location server an indication of the base station's ability to perform self-interference cancellation on uplink signals received simultaneously with the transmission of the PRS.

[0259] Clause 6. The method of any one of Clauses 1-5, wherein a silent configuration is received from a location server.

[0260] Clause 7. The method according to any one of Clauses 1-5, wherein the silent configuration is generated by the base station.

[0261] Clause 8. The method pursuant to Clause 7 also includes transmitting a silent configuration to a location server.

[0262] Clause 9. The method of any one of Clauses 1-8, wherein the silent configuration for PRS is based at least in part on slot type based on slot type silent configuration indicating whether PRS is silent in each slot based on slot type, and also on at least one of inter-instance silent configuration, intra-instance silent configuration, or a combination thereof.

[0263] Clause 10. The method according to Clause 9, wherein the silent configuration for PRS is a logical combination of at least one of slot-type silent configuration and inter-instance silent configuration, intra-instance silent configuration, or a combination thereof.

[0264] Clause 11. The method according to any one of Clauses 1-11, wherein the silent configuration for PRS is at least partially based on the slot type by a slot type silent configuration for PRS silence in each slot based on an indication of whether the silent configuration is based on the slot type, the method further comprising: obtaining an intra-slot silent configuration indicating whether the silent configuration is based on each of the PRS resource segments in a plurality of slots; and wherein the silent configuration for PRS is also based on the intra-slot silent configuration.

[0265] Clause 12. The method according to any one of Clauses 1-11, wherein transmitting silent configuration to the UE includes transmitting silent configuration to the UE in a Media Access Control-Control Element (MAC-CE) or Downlink Control Information (DCI).

[0266] Clause 13. The method pursuant to any one of Clauses 1-12 further includes transmitting the PRS to the UE in multiple time slots.

[0267] Clause 14. A base station configured to support location of a user equipment (UE) in a wireless network, comprising: an external interface configured to communicate with an entity in the wireless network; at least one memory; and at least one processor coupled to the external interface and the at least one memory, wherein the at least one processor is configured to: receive a schedule of location reference signals (PRS) to be transmitted in a plurality of time slots, wherein the plurality of time slots have time slot types including full-duplex time slots in which downlink transmission and uplink reception occur simultaneously and half-duplex time slots in which downlink transmission and uplink reception do not occur simultaneously; obtain a silent configuration for the PRS in the plurality of time slots, wherein the silent configuration is at least partially based on the time slot type; and transmit the silent configuration to the UE.

[0268] Clause 15. A base station pursuant to Clause 14, wherein the full-duplex time slot includes an in-band full-duplex time slot in which downlink transmission and uplink reception occur simultaneously and have the same frequency resources, wherein the silence configuration silences the PRS in the in-band full-duplex time slot.

[0269] Clause 16. A base station pursuant to any one of Clauses 14-15, wherein a full-duplex time slot includes a sub-band full-duplex time slot, in which downlink transmission and uplink reception occur simultaneously but on different frequency resources, wherein the silent configuration for the PRS in the sub-band full-duplex time slot is based on the base station’s ability to perform self-interference cancellation on uplink signals received simultaneously with the transmission of the PRS.

[0270] Clause 17. Base station according to Clause 16, wherein when the base station is unable to perform self-interference cancellation on uplink signals received simultaneously with the transmission of PRS, the silence configuration silences the PRS in the subband full-duplex time slot.

[0271] Clause 18. A base station pursuant to any one of Clauses 16-17, wherein at least one processor is further configured to transmit to a location server an indication of the base station's ability to perform self-interference cancellation on uplink signals received simultaneously with the transmission of the PRS.

[0272] Clause 19. A base station pursuant to any of Clauses 14-18, wherein a silent configuration is received from a location server.

[0273] Clause 20. A base station pursuant to any of Clauses 14-18, wherein the silent configuration is generated by the base station.

[0274] Clause 21. The base station pursuant to Clause 20, wherein at least one processor is further configured to transmit silent configuration to a location server.

[0275] Clause 22. A base station pursuant to any one of Clauses 14-21, wherein the silent configuration for PRS is based at least in part on the slot type by a slot type silent configuration indicating whether PRS is silent in each slot based on the slot type, and also on at least one of inter-instance silent configuration, intra-instance silent configuration, or a combination thereof.

[0276] Clause 23. Base station pursuant to Clause 22, wherein the silent configuration for PRS is a logical combination of at least one of slot-type silent configuration and inter-instance silent configuration, intra-instance silent configuration, or a combination thereof.

[0277] Clause 24. A base station pursuant to any one of Clauses 14-23, wherein the silent configuration for PRS is at least partially based on the slot type by a slot type silent configuration for PRS silence in each slot based on an indication of whether the silent configuration is based on the slot type, wherein at least one processor is further configured to: obtain an intra-slot silent configuration indicating whether the silent configuration is based on each of the PRS resource segments in the plurality of slots; and wherein the silent configuration for PRS is also based on the intra-slot silent configuration.

[0278] Clause 25. A base station pursuant to any one of Clauses 14-24, wherein at least one processor is configured to transmit silent configuration to the UE in a Media Access Control-Control Element (MAC-CE) or Downlink Control Information (DCI).

[0279] Clause 26. A base station pursuant to any one of Clauses 14-25, wherein at least one processor is further configured to transmit PRS to the UE in multiple time slots.

[0280] Clause 27. A base station service configured to support the location of a user equipment (UE) in a wireless network, comprising: means for receiving a scheduling of a location reference signal (PRS) to be transmitted in a plurality of time slots, wherein the plurality of time slots have time slot types including full-duplex time slots in which downlink transmission and uplink reception occur simultaneously and half-duplex time slots in which downlink transmission and uplink reception do not occur simultaneously; means for obtaining a silent configuration for the PRS in the plurality of time slots, wherein the silent configuration is at least partially based on the time slot type; and means for transmitting the silent configuration to the UE.

[0281] Clause 28. A base station pursuant to Clause 27, wherein a full-duplex time slot includes an in-band full-duplex time slot in which downlink transmission and uplink reception occur simultaneously and have the same frequency resources, wherein a silence configuration silences the PRS in the in-band full-duplex time slot.

[0282] Clause 29. A base station pursuant to any one of Clauses 27-28, wherein a full-duplex time slot includes a sub-band full-duplex time slot in which downlink transmission and uplink reception occur simultaneously but on different frequency resources, wherein the silent configuration for the PRS in the sub-band full-duplex time slot is based on the base station’s ability to perform self-interference cancellation on uplink signals received simultaneously with the transmission of the PRS.

[0283] Clause 30. Base station pursuant to Clause 29, wherein when the base station is unable to perform self-interference cancellation on uplink signals received simultaneously with the transmission of PRS, the silence configuration silences the PRS in the subband full-duplex time slot.

[0284] Clause 31. A base station pursuant to any one of Clauses 29-30, wherein the base station transmits to a location server an indication of the base station's ability to perform self-interference cancellation on uplink signals received simultaneously with the transmission of the PRS.

[0285] Clause 32. A base station pursuant to any of Clauses 27-31, wherein a silent configuration is received from a location server.

[0286] Clause 33. A base station pursuant to any of Clauses 27-31, wherein the silent configuration is generated by the base station.

[0287] Clause 34. The base station pursuant to Clause 33 also includes components for transmitting silent configuration to a location server.

[0288] Clause 35. A base station pursuant to any one of Clauses 27-34, wherein the silent configuration for PRS is based at least in part on the slot type by a slot type silent configuration indicating whether PRS is silent in each slot based on the slot type, and also on at least one of inter-instance silent configuration, intra-instance silent configuration, or a combination thereof.

[0289] Clause 36. A base station pursuant to Clause 35, wherein the silent configuration for PRS is a logical combination of at least one of slot-type silent configuration and inter-instance silent configuration, intra-instance silent configuration, or a combination thereof.

[0290] Clause 37. A base station pursuant to any one of Clauses 27-37, wherein the silent configuration for PRS is at least partially based on a slot type by a slot type silent configuration indicating whether the PRS is silent in each slot, further comprising: a component for obtaining an intra-slot silent configuration indicating whether the PRS resource segment in a plurality of slots is silent; and wherein the silent configuration for PRS is also based on the intra-slot silent configuration.

[0291] Clause 38. A base station pursuant to any of Clauses 27-37, wherein the component for transmitting silent configuration to the UE transmits silent configuration to the UE in a Media Access Control-Control Element (MAC-CE) or Downlink Control Information (DCI).

[0292] Clause 39. A base station pursuant to any one of Clauses 27-38 further includes components for transmitting PRS to the UE in multiple time slots.

[0293] Clause 40. A non-transitory storage medium including program code stored thereon, the program code being operable to configure at least one processor in a base station for supporting the location of a user equipment (UE) in a wireless network, the program code including instructions for: receiving a schedule of location reference signals (PRS) to be transmitted in a plurality of time slots, wherein the plurality of time slots have time slot types including full-duplex time slots in which downlink transmission and uplink reception occur simultaneously and half-duplex time slots in which downlink transmission and uplink reception do not occur simultaneously; obtaining a silent configuration for the PRS in the plurality of time slots, wherein the silent configuration is at least partially based on the time slot type; and transmitting the silent configuration to the UE.

[0294] Clause 41. A non-transitory storage medium pursuant to Clause 40, wherein a full-duplex time slot includes an in-band full-duplex time slot in which downlink transmission and uplink reception occur simultaneously and have the same frequency resources, wherein a silence configuration silences the PRS in the in-band full-duplex time slot.

[0295] Clause 42. A non-transitory storage medium pursuant to any of Clauses 40-41, wherein a full-duplex time slot includes a sub-band full-duplex time slot in which downlink transmission and uplink reception occur simultaneously but on different frequency resources, wherein the silent configuration for the PRS in the sub-band full-duplex time slot is based on the base station’s ability to perform self-interference cancellation on uplink signals received simultaneously with the transmission of the PRS.

[0296] Clause 43. A non-transitory storage medium pursuant to Clause 42, wherein when the base station is unable to perform self-interference cancellation on uplink signals received simultaneously with the transmission of PRS, the silence configuration silences the PRS in the subband full-duplex time slot.

[0297] Clause 44. A non-transitory storage medium pursuant to any of Clauses 42-43, wherein the program code further includes instructions for transmitting to a location server an indication of the base station's ability to perform self-interference cancellation on uplink signals received simultaneously with the transmission of the PRS.

[0298] Clause 45. A non-transitory storage medium pursuant to any of Clauses 40-44, wherein silent configuration is received from a location server.

[0299] Clause 46. A non-transitory storage medium pursuant to any of Clauses 40-44, wherein the silent configuration is generated by the base station.

[0300] Clause 47. A non-transitory storage medium pursuant to Clause 46, wherein the program code also includes instructions to transmit silent configuration to a location server.

[0301] Clause 48. A non-transitory storage medium pursuant to any of Clauses 40-47, wherein the silent configuration for PRS is based at least in part on the slot type by a slot type silent configuration indicating whether PRS is silent in each slot based on the slot type, and also on at least one of inter-instance silent configuration, intra-instance silent configuration, or a combination thereof.

[0302] Clause 49. The non-transitory storage medium pursuant to Clause 48, wherein the silent configuration for PRS is a logical combination of at least one of slot-type silent configuration and inter-instance silent configuration, intra-instance silent configuration, or a combination thereof.

[0303] Clause 50. A non-transitory storage medium pursuant to any one of Clauses 40-49, wherein the silent configuration for the PRS is at least partially based on the slot type by means of a slot type silent configuration for the PRS in each slot based on an indication of whether the PRS is silent based on the slot type, wherein the program code further includes instructions for: obtaining an intra-slot silent configuration indicating whether the PRS is silent for each of the PRS resource segments in the plurality of slots; and wherein the silent configuration for the PRS is also based on the intra-slot silent configuration.

[0304] Clause 51. A non-transitory storage medium pursuant to any of Clauses 40-49, wherein the program code further includes instructions for transmitting silent configuration to the UE in a Media Access Control-Control Element (MAC-CE) or Downlink Control Information (DCI).

[0305] Clause 52. A non-transitory storage medium pursuant to any of Clauses 40-51, wherein the program code further includes instructions for transmitting PRS to the UE in multiple time slots.

[0306] Clause 53. A method for supporting the location of a user equipment (UE) in a wireless network, performed by a location server, the method comprising: generating a schedule of location reference signals (PRS) to be transmitted by a base station in a plurality of time slots, wherein the plurality of time slots have time slot types including full-duplex time slots in which downlink transmission and uplink reception occur simultaneously and half-duplex time slots in which downlink transmission and uplink reception do not occur simultaneously; generating a silent configuration for the PRS in the plurality of time slots for the base station, wherein the silent configuration is at least partially based on the time slot type; transmitting the silent configuration to the base station; and transmitting the silent configuration to the UE.

[0307] Clause 54. The method according to Clause 53, wherein the full-duplex time slot includes an in-band full-duplex time slot in which downlink transmission and uplink reception occur simultaneously and have the same frequency resources, wherein the silence configuration silences the PRS in the in-band full-duplex time slot.

[0308] Clause 55. The method according to any one of Clauses 53-54, wherein the full-duplex time slot includes a sub-band full-duplex time slot, in which downlink transmission and uplink reception occur simultaneously but on different frequency resources, wherein the silent configuration for the PRS in the sub-band full-duplex time slot is based on the base station’s ability to perform self-interference cancellation on uplink signals received simultaneously with the transmission of the PRS.

[0309] Clause 56. The method according to Clause 55, wherein when the base station is unable to perform self-interference cancellation on uplink signals received simultaneously with the transmission of PRS, the silence configuration silences the PRS in the subband full-duplex time slot.

[0310] Clause 57. The method pursuant to any one of Clauses 55-56 further includes an indication of the receiving base station's ability to perform self-interference cancellation on uplink signals received simultaneously with the transmission of the PRS.

[0311] Clause 58. The method of any one of Clauses 53-57, wherein the silent configuration for PRS is based at least in part on slot type based on slot type silent configuration indicating whether PRS is silent in each slot based on slot type, and also on at least one of inter-instance silent configuration, intra-instance silent configuration, or a combination thereof.

[0312] Clause 59. The method according to Clause 58, wherein the silent configuration for PRS is a logical combination of at least one of slot-type silent configuration and inter-instance silent configuration, intra-instance silent configuration, or a combination thereof.

[0313] Clause 60. The method of any one of Clauses 53-59, wherein the silent configuration for PRS is at least partially based on the slot type by means of a slot type silent configuration for PRS silence in each slot based on an indication of whether the silent configuration is based on the slot type, the method further comprising: generating an intra-slot silent configuration indicating whether the silent configuration is for each of the PRS resource segments in a plurality of slots; and wherein the silent configuration for PRS is also based on the intra-slot silent configuration.

[0314] Clause 61. The method of any one of Clauses 53-60, wherein generating the silent configuration for PRS based at least in part on the slot type is in response to determining that a Media Access Control-Control Element (MAC-CE) or Downlink Control Information (DCI) PRS trigger is in use.

[0315] Clause 62. A location server configured to support location of a user equipment (UE) in a wireless network, comprising: an external interface configured to communicate with an entity in the wireless network; at least one memory; and at least one processor coupled to the external interface and the at least one memory, wherein the at least one processor is configured to: generate a schedule for location reference signals (PRS) to be transmitted by a base station in a plurality of time slots, wherein the plurality of time slots have time slot types including full-duplex time slots in which downlink transmission and uplink reception occur simultaneously and half-duplex time slots in which downlink transmission and uplink reception do not occur simultaneously; generate a silent configuration for the PRS in the plurality of time slots for the base station, wherein the silent configuration is at least partially based on the time slot type; transmit the silent configuration to the base station; and transmit the silent configuration to the UE.

[0316] Clause 63. A location server pursuant to Clause 62, wherein a full-duplex time slot includes an in-band full-duplex time slot in which downlink transmission and uplink reception occur simultaneously and have the same frequency resources, wherein a silence configuration silences the PRS in the in-band full-duplex time slot.

[0317] Clause 64. A location server pursuant to any of Clauses 62-63, wherein a full-duplex time slot includes a sub-band full-duplex time slot in which downlink transmission and uplink reception occur simultaneously but on different frequency resources, wherein the silent configuration for the PRS in the sub-band full-duplex time slot is based on the base station’s ability to perform self-interference cancellation on uplink signals received simultaneously with the transmission of the PRS.

[0318] Clause 65. Location server pursuant to Clause 64, wherein when the base station is unable to perform self-interference cancellation on uplink signals received simultaneously with the transmission of PRS, the silence configuration silences the PRS in the subband full-duplex time slot.

[0319] Clause 66. A location server pursuant to any of Clauses 64-65, wherein at least one processor is further configured to receive an indication of the base station’s ability to perform self-interference cancellation on uplink signals received simultaneously with the transmission of PRS.

[0320] Clause 67. A location server pursuant to any one of Clauses 62-66, wherein the silent configuration for PRS is based at least in part on the slot type by a slot type silent configuration indicating whether PRS is silent in each slot based on the slot type, and also on at least one of inter-instance silent configuration, intra-instance silent configuration, or a combination thereof.

[0321] Clause 68. Location server pursuant to Clause 67, wherein the silent configuration for PRS is a logical combination of at least one of slot-type silent configuration and inter-instance silent configuration, intra-instance silent configuration, or a combination thereof.

[0322] Clause 69. A location server pursuant to any one of Clauses 62-68, wherein the silent configuration for PRS is at least partially based on the time slot type by means of a time slot type silent configuration for PRS silence in each time slot based on an indication of whether the time slot type is used, wherein at least one processor is further configured to: generate an intra-time slot silent configuration indicating whether each of the PRS resource segments in a plurality of time slots is silent; and wherein the silent configuration for PRS is also based on the intra-time slot silent configuration.

[0323] Clause 70. The method of any one of Clauses 62-69, wherein at least one processor is configured to generate a silent configuration for PRS in response to determining that a Media Access Control-Control Element (MAC-CE) or Downlink Control Information (DCI) PRS trigger is in use and is based at least in part on the slot type.

[0324] Clause 71. A location server configured to support the positioning of a user equipment (UE) in a wireless network, comprising: means for generating a schedule of positioning reference signals (PRS) to be transmitted by a base station in a plurality of time slots, wherein the plurality of time slots have time slot types including full-duplex time slots in which downlink transmission and uplink reception occur simultaneously and half-duplex time slots in which downlink transmission and uplink reception do not occur simultaneously; means for generating a silent configuration for the PRS in the plurality of time slots for the base station, wherein the silent configuration is at least partially based on the time slot type; means for transmitting the silent configuration to the base station; and means for transmitting the silent configuration to the UE.

[0325] Clause 72. A location server pursuant to Clause 71, wherein a full-duplex time slot includes an in-band full-duplex time slot in which downlink transmission and uplink reception occur simultaneously and have the same frequency resources, wherein a silence configuration silences the PRS in the in-band full-duplex time slot.

[0326] Clause 73. A location server pursuant to any of Clauses 71-72, wherein a full-duplex time slot includes a sub-band full-duplex time slot in which downlink transmission and uplink reception occur simultaneously but on different frequency resources, wherein the silent configuration for the PRS in the sub-band full-duplex time slot is based on the base station’s ability to perform self-interference cancellation on uplink signals received simultaneously with the transmission of the PRS.

[0327] Clause 74. Location server pursuant to Clause 73, wherein when the base station is unable to perform self-interference cancellation on uplink signals received simultaneously with the transmission of PRS, the silence configuration silences the PRS in the subband full-duplex time slot.

[0328] Clause 75. The location server pursuant to any of Clauses 73-74 further includes a component for receiving an indication of the base station's ability to perform self-interference cancellation on uplink signals received simultaneously with the transmission of the PRS.

[0329] Clause 76. A location server pursuant to any one of Clauses 71-75, wherein the silent configuration for PRS is based at least in part on the slot type by a slot type silent configuration indicating whether PRS is silent in each slot based on the slot type, and also on at least one of inter-instance silent configuration, intra-instance silent configuration, or a combination thereof.

[0330] Clause 77. Location server pursuant to Clause 76, wherein the silent configuration for PRS is a logical combination of at least one of slot-type silent configuration and inter-instance silent configuration, intra-instance silent configuration, or a combination thereof.

[0331] Clause 78. A location server pursuant to any one of Clauses 71-77, wherein the silent configuration for PRS is at least partially based on a time slot type by means of a time slot type silent configuration indicating whether the PRS is silent in each time slot, further comprising: a component for generating an in-time slot silent configuration indicating whether the PRS is silent in each of a plurality of time slot resource segments; and wherein the silent configuration for PRS is also based on the in-time slot silent configuration.

[0332] Clause 79. A location server pursuant to any one of Clauses 71-78, wherein the component for generating a silent configuration for a PRS based at least in part on the time slot type generates a silent configuration in response to determining that a Media Access Control-Control Element (MAC-CE) or Downlink Control Information (DCI) PRS trigger is in use.

[0333] Clause 80. A non-transitory storage medium including program code stored thereon, the program code being operable to configure at least one processor in a location server for supporting the location of a user equipment (UE) in a wireless network, the program code including instructions for: generating a schedule of location reference signals (PRS) to be transmitted by a base station in a plurality of time slots, wherein the plurality of time slots have time slot types including full-duplex time slots in which downlink transmission and uplink reception occur simultaneously and half-duplex time slots in which downlink transmission and uplink reception do not occur simultaneously; generating a silent configuration for the PRS in the plurality of time slots for the base station, wherein the silent configuration is at least partially based on the time slot type; transmitting the silent configuration to the base station; and transmitting the silent configuration to the UE.

[0334] Clause 81. A non-transitory storage medium pursuant to Clause 80, wherein a full-duplex time slot includes an in-band full-duplex time slot in which downlink transmission and uplink reception occur simultaneously and have the same frequency resources, wherein a silence configuration silences the PRS in the in-band full-duplex time slot.

[0335] Clause 82. A non-transitory storage medium pursuant to any of Clauses 80-81, wherein a full-duplex time slot includes a sub-band full-duplex time slot in which downlink transmission and uplink reception occur simultaneously but on different frequency resources, wherein the silent configuration for the PRS in the sub-band full-duplex time slot is based on the base station’s ability to perform self-interference cancellation on uplink signals received simultaneously with the transmission of the PRS.

[0336] Clause 83. A non-transitory storage medium pursuant to Clause 82, wherein when the base station is unable to perform self-interference cancellation on uplink signals received simultaneously with the transmission of PRS, the silence configuration silences the PRS in the subband full-duplex time slot.

[0337] Clause 84. A non-transitory storage medium pursuant to any of Clauses 82-83, wherein the program code further includes instructions for: indicating the ability of a receiving base station to perform self-interference cancellation on uplink signals received simultaneously with the transmission of PRS.

[0338] Clause 85. A non-transitory storage medium pursuant to any of Clauses 80-84, wherein the silent configuration for PRS is based at least in part on the slot type by a slot type silent configuration indicating whether PRS is silent in each slot based on the slot type, and also on at least one of inter-instance silent configuration, intra-instance silent configuration, or a combination thereof.

[0339] Clause 86. The non-transitory storage medium pursuant to Clause 85, wherein the silent configuration for PRS is a logical combination of at least one of slot-type silent configuration and inter-instance silent configuration, intra-instance silent configuration, or a combination thereof.

[0340] Clause 87. A non-transitory storage medium pursuant to any of Clauses 80-86, wherein the silent configuration for the PRS is at least partially based on the slot type by means of a slot type silent configuration for the PRS in each slot based on an indication of whether the silent configuration is based on the slot type, wherein the program code further includes instructions for: generating an intra-slot silent configuration indicating whether the silent configuration is based on each of the PRS resource segments in the plurality of slots; and wherein the silent configuration for the PRS is also based on the intra-slot silent configuration.

[0341] Clause 88. A non-transitory storage medium pursuant to any of Clauses 80-87, wherein the program code includes instructions for generating a silent configuration for the PRS in response to determining a Media Access Control-Control Element (MAC-CE) or Downlink Control Information (DCI) PRS trigger that is in use and is at least partially based on the slot type.

[0342] Clause 89. A method for supporting UE positioning, performed by a user equipment (UE) in a wireless network, the method comprising: receiving a schedule of positioning reference signals (PRS) to be transmitted by a base station in a plurality of time slots, wherein the plurality of time slots have time slot types including full-duplex time slots in which downlink transmission and uplink reception by the base station occur simultaneously and half-duplex time slots in which downlink transmission and uplink reception by the base station do not occur simultaneously; receiving a silent configuration for the PRS in the plurality of time slots, wherein the silent configuration is at least partially based on the time slot type; and receiving the PRS from the base station using the silent configuration.

[0343] Clause 90. The method according to Clause 89, wherein the full-duplex time slot includes an in-band full-duplex time slot in which downlink transmission and uplink reception by the base station occur simultaneously and have the same frequency resources, wherein the silence configuration silences the PRS in the in-band full-duplex time slot.

[0344] Clause 91. The method according to any one of Clauses 89-90, wherein the full-duplex time slot includes a sub-band full-duplex time slot, in which downlink transmission and uplink reception by the base station occur simultaneously but on different frequency resources, wherein the silent configuration for the PRS in the sub-band full-duplex time slot is based on the base station's ability to perform self-interference cancellation on uplink signals received simultaneously with the transmission of the PRS.

[0345] Clause 92. The method according to Clause 91, wherein when the base station is unable to perform self-interference cancellation on uplink signals received simultaneously with the transmission of PRS, the silence configuration silences the PRS in the subband full-duplex time slot.

[0346] Clause 93. The method of any one of Clauses 89-92, wherein the silent configuration for PRS is based at least in part on slot type based on slot type silent configuration indicating whether PRS is silent in each slot based on slot type, and also on at least one of inter-instance silent configuration, intra-instance silent configuration, or a combination thereof.

[0347] Clause 94. The method according to Clause 93, wherein the silent configuration for PRS is a logical combination of at least one of slot-type silent configuration and inter-instance silent configuration, intra-instance silent configuration, or a combination thereof.

[0348] Clause 95. The method of any one of Clauses 89-94, wherein the silent configuration for PRS is at least partially based on the slot type by a slot type silent configuration indicating whether the PRS is silent in each slot based on the slot type, and a slot-in-slot silent configuration indicating whether the PRS is silent in each of the multiple slot resource segments.

[0349] Clause 96. The method according to any one of Clauses 89-95, wherein receiving silent configuration from the base station includes receiving silent configuration from the base station in a Medium Access Control-Control Element (MAC-CE) or Downlink Control Information (DCI).

[0350] Clause 97. A UE configured to support location of a user equipment (UE) in a wireless network, comprising: a radio transceiver configured to wirelessly communicate with an entity in the wireless network; at least one memory; and at least one processor coupled to the radio transceiver and the at least one memory, wherein the at least one processor is configured to: receive a schedule of location reference signals (PRS) to be transmitted in a plurality of time slots, wherein the plurality of time slots have time slot types including full-duplex time slots in which downlink transmission and uplink reception by a base station occur simultaneously and half-duplex time slots in which downlink transmission and uplink reception by a base station do not occur simultaneously; receive a silent configuration for the PRS in the plurality of time slots, wherein the silent configuration is at least partially based on the time slot type; and receive the PRS from a base station using the silent configuration.

[0351] Clause 98. The UE pursuant to Clause 97, wherein the full-duplex time slot includes an in-band full-duplex time slot in which downlink transmission and uplink reception by the base station occur simultaneously and have the same frequency resources, wherein the silence configuration silences the PRS in the in-band full-duplex time slot.

[0352] Clause 99. A UE pursuant to any of Clauses 97-98, wherein a full-duplex time slot includes a sub-band full-duplex time slot in which downlink transmission and uplink reception by the base station occur simultaneously but on different frequency resources, wherein the silent configuration for the PRS in the sub-band full-duplex time slot is based on the base station’s ability to perform self-interference cancellation on uplink signals received simultaneously with the transmission of the PRS.

[0353] Clause 100. According to Clause 99, for a UE, when the base station is unable to perform self-interference cancellation on an uplink signal received simultaneously with the transmission of PRS, the silence configuration silences the PRS in the subband full-duplex time slot.

[0354] Clause 101. A UE pursuant to any of Clauses 97-100, wherein the silent configuration for PRS is based at least in part on slot type based on slot type silent configuration indicating whether PRS is silent in each slot based on slot type, and also on at least one of inter-instance silent configuration, intra-instance silent configuration, or a combination thereof.

[0355] Clause 102. The UE pursuant to Clause 101, wherein the silent configuration for PRS is a logical combination of at least one of slot-type silent configuration and inter-instance silent configuration, intra-instance silent configuration, or a combination thereof.

[0356] Clause 103. A UE pursuant to any of Clauses 97-102, wherein the silent configuration for PRS is at least partially based on the slot type by a slot type silent configuration indicating whether the PRS is silent in each slot based on the slot type, and an intra-slot silent configuration indicating whether the PRS resource segment is silent in a plurality of slots.

[0357] Clause 104. A UE pursuant to any of Clauses 97-103, wherein at least one processor is configured to receive silent configuration from a base station in a Media Access Control-Control Element (MAC-CE) or Downlink Control Information (DCI).

[0358] Clause 105. A user equipment (UE) in a wireless network configured to support UE positioning, comprising: means for receiving a scheduling of positioning reference signals (PRS) to be transmitted by a base station in a plurality of time slots, wherein the plurality of time slots have time slot types including full-duplex time slots in which downlink transmission and uplink reception by the base station occur simultaneously and half-duplex time slots in which downlink transmission and uplink reception by the base station do not occur simultaneously; means for receiving a silent configuration for the PRS in the plurality of time slots, wherein the silent configuration is at least partially based on the time slot type; and means for receiving the PRS from the base station using the silent configuration.

[0359] Clause 106. The UE pursuant to Clause 105, wherein the full-duplex time slot includes an in-band full-duplex time slot in which downlink transmission and uplink reception by the base station occur simultaneously and have the same frequency resources, wherein the silence configuration silences the PRS in the in-band full-duplex time slot.

[0360] Clause 107. A UE pursuant to any of Clauses 105-106, wherein a full-duplex time slot includes a sub-band full-duplex time slot in which downlink transmission and uplink reception by the base station occur simultaneously but on different frequency resources, wherein the silent configuration for the PRS in the sub-band full-duplex time slot is based on the base station’s ability to perform self-interference cancellation on uplink signals received simultaneously with the transmission of the PRS.

[0361] Clause 108. The UE pursuant to Clause 107, wherein when the base station is unable to perform self-interference cancellation on uplink signals received simultaneously with the transmission of PRS, the silence configuration silences the PRS in the subband full-duplex time slot.

[0362] Clause 109. A UE pursuant to any of Clauses 105-108, wherein the silent configuration for PRS is based at least in part on slot type based on slot type silent configuration indicating whether PRS is silent in each slot based on slot type, and also on at least one of inter-instance silent configuration, intra-instance silent configuration, or a combination thereof.

[0363] Clause 110. The UE pursuant to Clause 109, wherein the silent configuration for PRS is a logical combination of at least one of slot-type silent configuration and inter-instance silent configuration, intra-instance silent configuration, or a combination thereof.

[0364] Clause 111. A UE pursuant to any of Clauses 105-110, wherein the silent configuration for PRS is at least partially based on the slot type by a slot type silent configuration indicating whether the PRS is silent in each slot based on the slot type, and an intra-slot silent configuration indicating whether the PRS resource segment is silent in a plurality of slots.

[0365] Clause 112. A UE pursuant to any of Clauses 105-111, wherein the component for receiving silent configuration receives silent configuration from the base station in a Media Access Control-Control Element (MAC-CE) or Downlink Control Information (DCI).

[0366] Clause 113. A non-transitory storage medium including program code stored thereon, the program code being operable to configure at least one processor in a user equipment (UE) for supporting location of the UE in a wireless network, the program code including instructions for: receiving a schedule of location reference signals (PRS) to be transmitted by a base station in a plurality of time slots, wherein the plurality of time slots have time slot types including full-duplex time slots in which downlink transmission and uplink reception by the base station occur simultaneously and half-duplex time slots in which downlink transmission and uplink reception by the base station do not occur simultaneously; receiving a silent configuration for the PRS in the plurality of time slots, wherein the silent configuration is at least partially based on the time slot type; and receiving the PRS from the base station using the silent configuration.

[0367] Clause 114. The non-transitory storage medium pursuant to Clause 113, wherein the full-duplex time slot includes an in-band full-duplex time slot in which downlink transmission and uplink reception by the base station occur simultaneously and have the same frequency resources, wherein the silence configuration silences the PRS in the in-band full-duplex time slot.

[0368] Clause 115. A non-transitory storage medium pursuant to any of Clauses 113-114, wherein a full-duplex time slot includes a sub-band full-duplex time slot in which downlink transmission and uplink reception by the base station occur simultaneously but on different frequency resources, wherein the silent configuration for the PRS in the sub-band full-duplex time slot is based on the base station’s ability to perform self-interference cancellation on uplink signals received simultaneously with the transmission of the PRS.

[0369] Clause 116. A non-transitory storage medium pursuant to Clause 115, wherein when the base station is unable to perform self-interference cancellation on uplink signals received simultaneously with the transmission of PRS, the silence configuration silences the PRS in the subband full-duplex time slot.

[0370] Clause 117. A non-transitory storage medium pursuant to any of Clauses 113-116, wherein the silent configuration for PRS is based at least in part on the slot type by a slot type silent configuration indicating whether the PRS in each slot is silent based on the slot type, and also on at least one of inter-instance silent configuration, intra-instance silent configuration, or a combination thereof.

[0371] Clause 118. The non-transitory storage medium pursuant to Clause 117, wherein the silent configuration for PRS is a logical combination of at least one of slot-type silent configuration and inter-instance silent configuration, intra-instance silent configuration, or a combination thereof.

[0372] Clause 119. A non-transitory storage medium pursuant to any of Clauses 113-118, wherein the silent configuration for PRS is at least partially based on the slot type by a slot type silent configuration indicating whether the PRS is silent in each slot based on the slot type, and a slot-in-slot silent configuration indicating whether the PRS is silent in each of the multiple slot resource segments.

[0373] Clause 120. A non-transitory storage medium pursuant to any of Clauses 113-119, wherein the program code includes instructions for receiving silent configuration from a base station in a Media Access Control-Control Element (MAC-CE) or Downlink Control Information (DCI).

[0374] Therefore, the subject matter to be protected is not limited to the specific examples disclosed, but may also include all aspects falling within the scope of the appended claims and their equivalents.

Claims

1. A method for supporting the location of a user equipment (UE) performed by a network node serving a wireless network, the method comprising: The scheduling of receiving a Positioning Reference Signal (PRS) to be transmitted in multiple time slots, wherein the multiple time slots have time slot types including full-duplex time slots in which downlink transmission and uplink reception occur simultaneously and half-duplex time slots in which downlink transmission and uplink reception do not occur simultaneously; Obtain a silent configuration for the PRS in the plurality of time slots, wherein the silent configuration is at least partially based on the time slot type; and The silent configuration is transmitted to the UE.

2. The method according to claim 1, wherein, The full-duplex time slot includes an in-band full-duplex time slot, in which the downlink transmission and the uplink reception occur simultaneously and have the same frequency resources, wherein the silence configuration silences the PRS in the in-band full-duplex time slot.

3. The method according to claim 1, wherein, The full-duplex time slot includes a sub-band full-duplex time slot, in which the downlink transmission and the uplink reception occur simultaneously but on different frequency resources, wherein the silence configuration for the PRS in the sub-band full-duplex time slot is based on the network node’s ability to perform self-interference cancellation on uplink signals received simultaneously with the transmission of the PRS.

4. The method according to claim 3, wherein, When the network node is unable to perform self-interference cancellation on the uplink signal received simultaneously with the transmission of the PRS, the silence configuration silences the PRS in the sub-band full-duplex time slot.

5. The method according to claim 3, wherein, The network node transmits to the location server an indication of its ability to perform self-interference cancellation on uplink signals received simultaneously with the transmission of the PRS.

6. The method according to claim 1, wherein, Receive the silent configuration from the location server.

7. The method according to claim 1, wherein, The silent configuration is generated by the network node.

8. The method according to claim 1, wherein, The silent configuration for the PRS is based at least in part on the slot type by a slot type silent configuration indicating whether the PRS in each slot is silent based on the slot type, and also on at least one of inter-instance silent configuration, intra-instance silent configuration, or a combination thereof.

9. The method according to claim 8, wherein, The silent configuration used for the PRS is a logical combination of at least one of the slot type silent configuration, the inter-instance silent configuration, the intra-instance silent configuration, or a combination thereof.

10. The method according to claim 1, wherein, The silence configuration for the PRS is at least partially based on the time slot type by a time slot type silence configuration for the PRS in each time slot based on an indication of whether the time slot type is used to silence the PRS, and the method further includes: Obtain an indication of whether to perform in-slot silent configuration for each of the multiple time slots of the PRS resource segment; and The silent configuration used for the PRS is also based on the intra-slot silent configuration.

11. The method according to claim 1, wherein, Transmitting the silent configuration to the UE includes transmitting the silent configuration to the UE in the Medium Access Control-Control Element (MAC-CE) or Downlink Control Information (DCI).

12. A network node configured to support the location of a user equipment (UE) in a wireless network, comprising: An external interface configured to communicate with entities in the wireless network; At least one memory; At least one processor coupled to the external interface and the at least one memory, wherein the at least one processor is configured to: The scheduling of receiving a Positioning Reference Signal (PRS) to be transmitted in multiple time slots, wherein the multiple time slots have time slot types including full-duplex time slots in which downlink transmission and uplink reception occur simultaneously and half-duplex time slots in which downlink transmission and uplink reception do not occur simultaneously; Obtain a silent configuration for the PRS in the plurality of time slots, wherein the silent configuration is at least partially based on the time slot type; and The silent configuration is transmitted to the UE.

13. The network node according to claim 12, wherein, The full-duplex time slot includes an in-band full-duplex time slot, in which the downlink transmission and the uplink reception occur simultaneously and have the same frequency resources, wherein the silence configuration silences the PRS in the in-band full-duplex time slot.

14. The network node according to claim 12, wherein, The full-duplex time slot includes a sub-band full-duplex time slot, in which the downlink transmission and the uplink reception occur simultaneously but on different frequency resources, wherein the silence configuration for the PRS in the sub-band full-duplex time slot is based on the network node’s ability to perform self-interference cancellation on uplink signals received simultaneously with the transmission of the PRS.

15. The network node according to claim 14, wherein, When the network node is unable to perform self-interference cancellation on the uplink signal received simultaneously with the transmission of the PRS, the silence configuration silences the PRS in the sub-band full-duplex time slot.

16. The network node according to claim 14, wherein, The at least one processor is also configured to transmit to the location server an indication of the network node's ability to perform self-interference cancellation on uplink signals received simultaneously with the transmission of the PRS.

17. The network node according to claim 12, wherein, Receive the silent configuration from the location server.

18. The network node according to claim 12, wherein, The silent configuration is generated by the network node.

19. The network node according to claim 12, wherein, The silent configuration for the PRS is based at least in part on the slot type by a slot type silent configuration indicating whether the PRS in each slot is silent based on the slot type, and also on at least one of inter-instance silent configuration, intra-instance silent configuration, or a combination thereof.

20. The network node according to claim 19, wherein, The silent configuration used for the PRS is a logical combination of at least one of the slot type silent configuration, the inter-instance silent configuration, the intra-instance silent configuration, or a combination thereof.

21. The network node according to claim 12, wherein, The silence configuration for the PRS is at least partially based on the time slot type by a time slot type silence configuration based on an indication of whether the PRS is silenced in each time slot based on the time slot type, wherein the at least one processor is further configured to: Obtain an indication of whether to perform in-slot silent configuration for each of the multiple time slots of the PRS resource segment; and The silent configuration used for the PRS is also based on the intra-slot silent configuration.

22. The network node according to claim 12, wherein, The at least one processor is configured to transmit the silent configuration to the UE in the Media Access Control-Control Element (MAC-CE) or Downlink Control Information (DCI).

23. A method performed by a location server for supporting the location of a user equipment (UE) in a wireless network, the method comprising: The scheduling of generating a Positioning Reference Signal (PRS) to be transmitted by network nodes in multiple time slots, wherein the multiple time slots have time slot types including full-duplex time slots in which downlink transmission and uplink reception occur simultaneously and half-duplex time slots in which downlink transmission and uplink reception do not occur simultaneously; Generate a silent configuration for the network node for the PRS in the plurality of time slots, wherein the silent configuration is at least partially based on the time slot type; Transmit the silent configuration to the network node; and The silent configuration is transmitted to the UE.

24. The method according to claim 23, wherein, The full-duplex time slot includes an in-band full-duplex time slot, in which the downlink transmission and the uplink reception occur simultaneously and have the same frequency resources, wherein the silence configuration silences the PRS in the in-band full-duplex time slot.

25. The method according to claim 23, wherein, The full-duplex time slot includes a sub-band full-duplex time slot, in which the downlink transmission and the uplink reception occur simultaneously but on different frequency resources, wherein the silence configuration for the PRS in the sub-band full-duplex time slot is based on the network node’s ability to perform self-interference cancellation on uplink signals received simultaneously with the transmission of the PRS.

26. The method according to claim 23, wherein, The silent configuration for the PRS is based at least in part on the slot type by a slot type silent configuration indicating whether the PRS in each slot is silent based on the slot type, and also on at least one of inter-instance silent configuration, intra-instance silent configuration, or a combination thereof.

27. The method according to claim 26, wherein, The silent configuration used for the PRS is a logical combination of at least one of the slot type silent configuration, the inter-instance silent configuration, the intra-instance silent configuration, or a combination thereof.

28. The method according to claim 23, wherein, The silence configuration for the PRS is at least partially based on the time slot type by a time slot type silence configuration for the PRS in each time slot based on an indication of whether the time slot type is used to silence the PRS, and the method further includes: Generate an indication of whether to perform in-slot silent configuration for each of the PRS resource segments within multiple time slots; and The silent configuration used for the PRS is also based on the intra-slot silent configuration.

29. The method according to claim 23, wherein, The silent configuration for the PRS, generated at least in part based on the time slot type, is triggered in response to determining that the Media Access Control-Control Element (MAC-CE) or Downlink Control Information (DCIPRS) is in use.

30. A method for supporting UE positioning, performed by a user equipment (UE) in a wireless network, the method comprising: The scheduling of receiving Positioning Reference Signals (PRS) to be transmitted by network nodes in multiple time slots, wherein the multiple time slots have time slot types including full-duplex time slots in which downlink transmission and uplink reception by the network nodes occur simultaneously and half-duplex time slots in which downlink transmission and uplink reception by the network nodes do not occur simultaneously. Receive a silent configuration for the PRS in the plurality of time slots, wherein the silent configuration is at least partially based on the time slot type; and The PRS is received from the network node using the silent configuration.

31. The method according to claim 30, wherein, The full-duplex time slot includes an in-band full-duplex time slot, in which the downlink transmission and uplink reception performed by the network node occur simultaneously and have the same frequency resources, wherein the silence configuration silences the PRS in the in-band full-duplex time slot.

32. The method according to claim 30, wherein, The full-duplex time slot includes a sub-band full-duplex time slot, in which the downlink transmission and uplink reception performed by the network node occur simultaneously but on different frequency resources, wherein the silence configuration for the PRS in the sub-band full-duplex time slot is based on the network node's ability to perform self-interference cancellation on uplink signals received simultaneously with the transmission of the PRS.

33. The method according to claim 30, wherein, The silent configuration for the PRS is based at least in part on the slot type by a slot type silent configuration indicating whether the PRS in each slot is silent based on the slot type, and also on at least one of inter-instance silent configuration, intra-instance silent configuration, or a combination thereof.

34. The method according to claim 30, wherein, The silence configuration for the PRS is at least partially based on the slot type by a slot type silence configuration indicating whether the PRS is silenced in each slot based on the slot type, and the slot-in-slot silence configuration indicates whether each of the PRS resource segments in the plurality of slots is silenced.

35. The method according to claim 30, wherein, Receiving the silent configuration includes receiving the silent configuration from the network node in the Media Access Control-Control Element (MAC-CE) or Downlink Control Information (DCI).

36. A network node configured to support the location of a user equipment (UE) in a wireless network, the network node including components for performing the method according to any one of claims 1 to 11.

37. A non-transitory storage medium having program code stored thereon, wherein, The program code can be executed by one or more processors in a network node to cause the processors to perform the method according to any one of claims 1 to 11.

38. A location server configured to support the location of a user equipment (UE) in a wireless network, comprising: An external interface configured to communicate with entities in the wireless network; At least one memory; At least one processor coupled to the external interface and the at least one memory, wherein the at least one processor is configured to perform the method according to any one of claims 23 to 29.

39. A location server configured to support the location of a user equipment (UE) in a wireless network, the location server including components for performing the method according to any one of claims 23 to 29.

40. A non-transitory storage medium having program code stored thereon, wherein, The program code may be executed by one or more processors in the location server to cause the processors to perform the method according to any one of claims 23 to 29.

41. A user equipment (UE) configured to support location of the UE in a wireless network, comprising: A wireless transceiver configured to communicate wirelessly with entities in the wireless network; At least one memory; At least one processor coupled to the wireless transceiver and the at least one memory, wherein the at least one processor is configured to perform the method according to any one of claims 30 to 35.

42. A user equipment (UE) configured to support location of the UE in a wireless network, the UE including components for performing the method according to any one of claims 30 to 35.

43. A non-transitory storage medium having program code stored thereon, wherein, The program code may be executed by one or more processors in a user equipment (UE) to cause the processors to perform the method according to any one of claims 30 to 35.

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