Bandwidth fractional configuration for communication of multiple reference signals for positioning

Abstract

In one aspect, a UE and a BS communicate data traffic according to a first bandwidth part (BWP) configuration. The BS sends an indication of a second BWP configuration including a bandwidth different from the first BWP configuration to the UE in association with communication of a plurality of reference signals (e.g., PRS, SRS-P, etc.) used for positioning. During the duration of the communication of the plurality of reference signals used for positioning, the UE and the BS communicate at least the plurality of reference signals used for positioning according to the second BWP configuration.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This patent application claims the priority of Indian Patent Application No. 202041032932 filed on July 31, 2020, assigned to the assignee and titled “BANDWIDTH PARTCONFIGURATION FOR COMMUNICATION OF MULTIPLE REFERENCE SIGNALS FOR POSITIONING” and is expressly incorporated herein by reference in its entirety. Technical Field

[0003] Aspects of the present disclosure relate generally to wireless communications, and more particularly to bandwidth part (BWP) configuration for communication of multiple reference signals for positioning. Background Art

[0004] Wireless communication systems have evolved over several generations, including first generation analog wireless telephone service (1G), second generation (2G) digital wireless telephone service (including transitional 2.5G networks), third generation (3G) high speed data, Internet-enabled wireless services, and fourth generation (4G) services (e.g., LTE or WiMax). There are many different types of wireless communication systems in use today, including cellular and personal communications service (PCS) systems. Examples of known cellular systems include the cellular analog Advanced Mobile Phone System (AMPS), and digital cellular systems based on code division multiple access (CDMA), frequency division multiple access (FDMA), time division multiple access (TDMA), global system for mobile access (GSM) variants of TDMA, and the like.

[0005] The fifth-generation (5G) wireless standard, known as New Radio (NR), enables higher data speeds, a greater number of connections, and better coverage, among other improvements. According to the Next Generation Mobile Networks Alliance, the 5G standard is designed to provide data rates of tens of megabits per second to each of tens of thousands of users and 1 gigabit per second to dozens of employees on an office floor. To support large wireless sensor deployments, hundreds of thousands of simultaneous connections should be supported. As a result, the spectral efficiency of 5G mobile communications should be significantly improved compared to the current 4G standard. In addition, signaling efficiency should be improved and latency should be significantly reduced compared to the current standard. Summary of the invention

[0006] A brief summary of the invention related to one or more aspects disclosed herein is given below. Therefore, the following summary of the invention should not be considered as an exhaustive overview related to all conceived aspects, nor should it be considered as identifying important or key elements related to all conceived aspects or outlining the scope associated with any particular aspect. Therefore, the sole purpose of the following summary of the invention is to present certain concepts related to one or more aspects related to the mechanisms disclosed herein in a simplified form before the detailed embodiments given below.

[0007] In one aspect, a method of operating a user equipment (UE) includes: transmitting data services with a base station according to a first bandwidth part (BWP) configuration; receiving an indication of a second BWP configuration including a bandwidth different from the first BWP configuration in association with communication of multiple reference signals for positioning from the base station; and transmitting at least multiple reference signals for positioning according to the second BWP configuration for a duration of the communication of the multiple reference signals for positioning.

[0008] In some aspects, the plurality of reference signals includes a positioning reference signal (PRS) and a sounding reference signal for positioning (SRS-P).

[0009] In some aspects, the indication includes a displayed indication of the second BWP configuration.

[0010] In some aspects, the indication is received via radio resource control (RRC) signaling, a medium access control (MAC) control element (CE), or a downlink control information (DCI) communication.

[0011] In some aspects, the indication comprises an implicit indication of the second BWP configuration.

[0012] In some aspects, the implicit indication is based on a positioning reference signal (PRS) configuration, a sounding reference signal for positioning (SRS-P) configuration, or a combination thereof.

[0013] In some aspects, the implicit indication is based on configuring one or more time slots in which PRS and / or SRS-P or both are configured.

[0014] In some aspects, the method includes performing measurements on at least one of a plurality of reference signals used for positioning without a measurement gap.

[0015] In some aspects, transmitting according to the second BWP configuration includes performing measurements of a positioning reference signal (PRS), and the UE stops processing of one or more downlink channels during the measurement of the PRS.

[0016] In some aspects, the method includes transmitting data traffic separated from the plurality of reference signals used for positioning with the base station between two reference signals of the plurality of reference signals used for positioning according to the first BWP configuration or the second BWP configuration.

[0017] In some aspects, the data traffic includes downlink data traffic, and the downlink data traffic is time division multiplexed (TDMed) with at least one downlink reference signal for positioning of a plurality of reference signals for positioning.

[0018] In some aspects, the plurality of reference signals used for positioning are transmitted across a plurality of positioning frequency layers, and the second BWP configuration includes one or more parameters that match a particular one of the plurality of positioning frequency layers.

[0019] In some aspects, the multiple reference signals used for positioning are associated with round trip time (RTT) measurements, multiple RTT measurements, single RTT measurements, differential RTT measurements, downlink angle of departure (AoD) measurements, uplink angle of arrival (AoA) measurements, or a combination thereof.

[0020] In some aspects, the method includes resuming communication of data traffic with the base station according to the first BWP configuration after communication of the plurality of reference signals.

[0021] In some aspects, the bandwidth associated with the second BWP configuration is greater than the bandwidth associated with the first BWP configuration.

[0022] In some aspects, communicating according to the first BWP configuration and communicating according to the second BWP configuration occur while the UE is in a radio resource control (RRC) inactive state.

[0023] In some aspects, communicating according to the first BWP configuration and communicating according to the second BWP configuration occur while the UE is in a radio resource control (RRC) connected state.

[0024] In some aspects, the first BWP configuration is associated with a narrower bandwidth than the second BWP configuration.

[0025] In one aspect, a method of operating a base station includes: transmitting data services with a user equipment (UE) according to a first bandwidth part (BWP) configuration; sending an indication of a second BWP configuration including a bandwidth different from the first BWP configuration to the UE in association with communication of multiple reference signals for positioning; and transmitting multiple reference signals at least for positioning according to the second BWP configuration for the duration of the communication of the multiple reference signals for positioning.

[0026] In some aspects, the plurality of reference signals includes a positioning reference signal (PRS) and a sounding reference signal for positioning (SRS-P).

[0027] In some aspects, the indication includes a displayed indication of the second BWP configuration.

[0028] In some aspects, the explicit indication is received via radio resource control (RRC) signaling, medium access control (MAC) control element (CE), or downlink control information (DCI) communication.

[0029] In some aspects, the indication comprises an implicit indication of the second BWP configuration.

[0030] In some aspects, the implicit indication is based on a positioning reference signal (PRS) configuration, a sounding reference signal for positioning (SRS-P) configuration, or a combination thereof.

[0031] In some aspects, the implicit indication is based on configuring one or more time slots in which PRS and / or SRS-P or both are configured.

[0032] In some aspects, the method includes transmitting, with the UE, data traffic separate from the plurality of reference signals used for positioning between two reference signals of the plurality of reference signals used for positioning according to the first BWP configuration or the second BWP configuration.

[0033] In some aspects, the data traffic includes downlink data traffic, and the downlink data traffic is time division multiplexed (TDMed) with at least one downlink reference signal for positioning of a plurality of reference signals for positioning.

[0034] In some aspects, the plurality of reference signals used for positioning are transmitted across a plurality of positioning frequency layers, and the second BWP configuration includes one or more parameters that match a particular one of the plurality of positioning frequency layers.

[0035] In some aspects, the multiple reference signals used for positioning are associated with round trip time (RTT) measurements, multiple RTT measurements, single RTT measurements, differential RTT measurements, downlink angle of departure (AoD) measurements, uplink angle of arrival (AoA) measurements, or a combination thereof.

[0036] In some aspects, the method includes resuming communication of data traffic with the UE according to the first BWP configuration after communication of the plurality of reference signals.

[0037] In some aspects, the bandwidth associated with the second BWP configuration is greater than the bandwidth associated with the first BWP configuration.

[0038] In some aspects, communicating according to the first BWP configuration and communicating according to the second BWP configuration occur while the UE is in a radio resource control (RRC) inactive state.

[0039] In some aspects, communicating according to the first BWP configuration and communicating according to the second BWP configuration occur while the UE is in a radio resource control (RRC) connected state.

[0040] In some aspects, the first BWP configuration is associated with a narrower bandwidth than the second BWP configuration.

[0041] In one aspect, a user equipment (UE) includes: a memory; at least one transceiver; and at least one processor, the at least one processor being communicatively coupled to the memory and the at least one transceiver, the at least one processor being configured to: transmit data services with a base station according to a first bandwidth part (BWP) configuration via the at least one transceiver; receive, from the base station, via the at least one transceiver, an indication of a second BWP configuration including a bandwidth different from the first BWP configuration in association with communication of multiple reference signals for positioning; and transmit, via the at least one transceiver, multiple reference signals for positioning according to the second BWP configuration for a duration of the communication of the multiple reference signals for positioning.

[0042] In some aspects, the plurality of reference signals includes a positioning reference signal (PRS) and a sounding reference signal for positioning (SRS-P).

[0043] In some aspects, the indication includes a displayed indication of the second BWP configuration.

[0044] In some aspects, the indication is received via radio resource control (RRC) signaling, a medium access control (MAC) control element (CE), or a downlink control information (DCI) communication.

[0045] In some aspects, the indication comprises an implicit indication of the second BWP configuration.

[0046] In some aspects, the implicit indication is based on a positioning reference signal (PRS) configuration, a sounding reference signal for positioning (SRS-P) configuration, or a combination thereof.

[0047] In some aspects, the implicit indication is based on configuring one or more time slots in which PRS and / or SRS-P or both are configured.

[0048] In some aspects, the at least one processor is further configured to perform measurements on at least one of the plurality of reference signals used for positioning without a measurement gap.

[0049] In some aspects, transmitting according to the second BWP configuration includes performing measurements of a positioning reference signal (PRS), and the UE stops processing of one or more downlink channels during the measurement of the PRS.

[0050] In some aspects, at least one processor is further configured to: transmit data traffic separated from multiple reference signals used for positioning to the base station between two reference signals of the multiple reference signals used for positioning via at least one transceiver according to the first BWP configuration or the second BWP configuration.

[0051] In some aspects, the data traffic includes downlink data traffic, and the downlink data traffic is time division multiplexed (TDMed) with at least one downlink reference signal for positioning of a plurality of reference signals for positioning.

[0052] In some aspects, the plurality of reference signals used for positioning are transmitted across a plurality of positioning frequency layers, and the second BWP configuration includes one or more parameters that match a particular one of the plurality of positioning frequency layers.

[0053] In some aspects, the multiple reference signals used for positioning are associated with round trip time (RTT) measurements, multiple RTT measurements, single RTT measurements, differential RTT measurements, downlink angle of departure (AoD) measurements, uplink angle of arrival (AoA) measurements, or a combination thereof.

[0054] In some aspects, at least one processor is further configured to, after communication of the plurality of reference signals, resume communication of data traffic with the base station according to the first BWP configuration.

[0055] In some aspects, the bandwidth associated with the second BWP configuration is greater than the bandwidth associated with the first BWP configuration.

[0056] In some aspects, communicating according to the first BWP configuration and communicating according to the second BWP configuration occur while the UE is in a radio resource control (RRC) inactive state.

[0057] In some aspects, communicating according to the first BWP configuration and communicating according to the second BWP configuration occur while the UE is in a radio resource control (RRC) connected state.

[0058] In some aspects, the first BWP configuration is associated with a narrower bandwidth than the second BWP configuration.

[0059] In one aspect, a base station includes: a memory; at least one transceiver; and at least one processor, the at least one processor being communicatively coupled to the memory and the at least one transceiver, the at least one processor being configured to: transmit data services to a user equipment (UE) via the at least one transceiver according to a first bandwidth part (BWP) configuration; send an indication of a second BWP configuration including a bandwidth different from the first BWP configuration to the UE in association with communication of multiple reference signals for positioning via the at least one transceiver; and transmit, via the at least one transceiver, multiple reference signals for positioning according to the second BWP configuration for a duration of the communication of the multiple reference signals for positioning.

[0060] In some aspects, the plurality of reference signals includes a positioning reference signal (PRS) and a sounding reference signal for positioning (SRS-P).

[0061] In some aspects, the indication includes a displayed indication of the second BWP configuration.

[0062] In some aspects, the explicit indication is received via radio resource control (RRC) signaling, medium access control (MAC) control element (CE), or downlink control information (DCI) communication.

[0063] In some aspects, the indication comprises an implicit indication of the second BWP configuration.

[0064] In some aspects, the implicit indication is based on a positioning reference signal (PRS) configuration, a sounding reference signal for positioning (SRS-P) configuration, or a combination thereof.

[0065] In some aspects, the implicit indication is based on configuring one or more time slots in which PRS and / or SRS-P or both are configured.

[0066] In some aspects, at least one processor is further configured to: transmit, via at least one transceiver, data traffic separated from multiple reference signals used for positioning to the UE between two reference signals of the multiple reference signals used for positioning according to the first BWP configuration or the second BWP configuration.

[0067] In some aspects, the data traffic includes downlink data traffic, and the downlink data traffic is time division multiplexed (TDMed) with at least one downlink reference signal for positioning of a plurality of reference signals for positioning.

[0068] In some aspects, the plurality of reference signals used for positioning are transmitted across a plurality of positioning frequency layers, and the second BWP configuration includes one or more parameters that match a particular one of the plurality of positioning frequency layers.

[0069] In some aspects, the multiple reference signals used for positioning are associated with round trip time (RTT) measurements, multiple RTT measurements, single RTT measurements, differential RTT measurements, downlink angle of departure (AoD) measurements, uplink angle of arrival (AoA) measurements, or a combination thereof.

[0070] In some aspects, the at least one processor is further configured to, after communication of the plurality of reference signals, resume communication of data traffic with the UE according to the first BWP configuration.

[0071] In some aspects, the bandwidth associated with the second BWP configuration is greater than the bandwidth associated with the first BWP configuration.

[0072] In some aspects, communicating according to the first BWP configuration and communicating according to the second BWP configuration occur while the UE is in a radio resource control (RRC) inactive state.

[0073] In some aspects, communicating according to the first BWP configuration and communicating according to the second BWP configuration occur while the UE is in a radio resource control (RRC) connected state.

[0074] In some aspects, the first BWP configuration is associated with a narrower bandwidth than the second BWP configuration.

[0075] In one aspect, a user equipment (UE) includes: a component for communicating data services with a base station according to a first bandwidth part (BWP) configuration; a component for receiving an indication of a second BWP configuration including a bandwidth different from the first BWP configuration in association with communication of multiple reference signals for positioning from the base station; and a component for transmitting at least multiple reference signals for positioning according to the second BWP configuration for a duration of the communication of the multiple reference signals for positioning.

[0076] In some aspects, the plurality of reference signals includes a positioning reference signal (PRS) and a sounding reference signal for positioning (SRS-P).

[0077] In some aspects, the indication includes a displayed indication of the second BWP configuration.

[0078] In some aspects, the indication is received via radio resource control (RRC) signaling, a medium access control (MAC) control element (CE), or a downlink control information (DCI) communication.

[0079] In some aspects, the indication comprises an implicit indication of the second BWP configuration.

[0080] In some aspects, the implicit indication is based on a positioning reference signal (PRS) configuration, a sounding reference signal for positioning (SRS-P) configuration, or a combination thereof.

[0081] In some aspects, the implicit indication is based on configuring one or more time slots in which PRS and / or SRS-P or both are configured.

[0082] In some aspects, the method includes means for performing measurements on at least one of a plurality of reference signals used for positioning without a measurement gap.

[0083] In some aspects, transmitting according to the second BWP configuration includes performing measurements of a positioning reference signal (PRS), and the UE stops processing of one or more downlink channels during the measurement of the PRS.

[0084] In some aspects, the method includes means for communicating data traffic separated from the plurality of reference signals used for positioning with a base station between two reference signals of the plurality of reference signals used for positioning according to the first BWP configuration or the second BWP configuration.

[0085] In some aspects, the data traffic includes downlink data traffic, and the downlink data traffic is time division multiplexed (TDMed) with at least one downlink reference signal for positioning of a plurality of reference signals for positioning.

[0086] In some aspects, the plurality of reference signals used for positioning are transmitted across a plurality of positioning frequency layers, and the second BWP configuration includes one or more parameters that match a particular one of the plurality of positioning frequency layers.

[0087] In some aspects, the multiple reference signals used for positioning are associated with round trip time (RTT) measurements, multiple RTT measurements, single RTT measurements, differential RTT measurements, downlink angle of departure (AoD) measurements, uplink angle of arrival (AoA) measurements, or a combination thereof.

[0088] In some aspects, the method includes means for resuming communication of data traffic with the base station according to the first BWP configuration following communication of the plurality of reference signals.

[0089] In some aspects, the bandwidth associated with the second BWP configuration is greater than the bandwidth associated with the first BWP configuration.

[0090] In some aspects, communicating according to the first BWP configuration and communicating according to the second BWP configuration occur while the UE is in a radio resource control (RRC) inactive state.

[0091] In some aspects, communicating according to the first BWP configuration and communicating according to the second BWP configuration occur while the UE is in a radio resource control (RRC) connected state.

[0092] In some aspects, the first BWP configuration is associated with a narrower bandwidth than the second BWP configuration.

[0093] In one aspect, a base station includes: a component for transmitting data services with a user equipment (UE) according to a first bandwidth part (BWP) configuration; a component for sending an indication of a second BWP configuration including a bandwidth different from the first BWP configuration to the UE in association with communication of multiple reference signals for positioning; and a component for transmitting at least multiple reference signals for positioning according to the second BWP configuration during the duration of the communication of the multiple reference signals for positioning.

[0094] In some aspects, the plurality of reference signals includes a positioning reference signal (PRS) and a sounding reference signal for positioning (SRS-P).

[0095] In some aspects, the indication includes a displayed indication of the second BWP configuration.

[0096] In some aspects, the explicit indication is received via radio resource control (RRC) signaling, medium access control (MAC) control element (CE), or downlink control information (DCI) communication.

[0097] In some aspects, the indication comprises an implicit indication of the second BWP configuration.

[0098] In some aspects, the implicit indication is based on a positioning reference signal (PRS) configuration, a sounding reference signal for positioning (SRS-P) configuration, or a combination thereof.

[0099] In some aspects, the implicit indication is based on configuring one or more time slots in which PRS and / or SRS-P or both are configured.

[0100] In some aspects, the method includes means for communicating, with the UE, data traffic separated from the plurality of reference signals used for positioning between two of the plurality of reference signals used for positioning according to the first BWP configuration or the second BWP configuration.

[0101] In some aspects, the data traffic includes downlink data traffic, and the downlink data traffic is time division multiplexed (TDMed) with at least one downlink reference signal for positioning of a plurality of reference signals for positioning.

[0102] In some aspects, the plurality of reference signals used for positioning are transmitted across a plurality of positioning frequency layers, and the second BWP configuration includes one or more parameters that match a particular one of the plurality of positioning frequency layers.

[0103] In some aspects, the multiple reference signals used for positioning are associated with round trip time (RTT) measurements, multiple RTT measurements, single RTT measurements, differential RTT measurements, downlink angle of departure (AoD) measurements, uplink angle of arrival (AoA) measurements, or a combination thereof.

[0104] In some aspects, the method includes means for resuming communication of data traffic with the UE according to the first BWP configuration following communication of the plurality of reference signals.

[0105] In some aspects, the bandwidth associated with the second BWP configuration is greater than the bandwidth associated with the first BWP configuration.

[0106] In some aspects, communicating according to the first BWP configuration and communicating according to the second BWP configuration occur while the UE is in a radio resource control (RRC) inactive state.

[0107] In some aspects, communicating according to the first BWP configuration and communicating according to the second BWP configuration occur while the UE is in a radio resource control (RRC) connected state.

[0108] In some aspects, the first BWP configuration is associated with a narrower bandwidth than the second BWP configuration.

[0109] In one aspect, a non-transitory computer-readable medium storing computer-executable instructions, which, when executed by a user equipment (UE), cause the UE to: communicate data traffic with a base station according to a first bandwidth part (BWP) configuration; receive from the base station an indication of a second BWP configuration including a bandwidth different from the first BWP configuration in association with communication of multiple reference signals for positioning; and transmit, for a duration of the communication of the multiple reference signals for positioning, multiple reference signals for positioning according to the second BWP configuration.

[0110] In some aspects, the plurality of reference signals includes a positioning reference signal (PRS) and a sounding reference signal for positioning (SRS-P).

[0111] In some aspects, the indication includes a displayed indication of the second BWP configuration.

[0112] In some aspects, the indication is received via radio resource control (RRC) signaling, a medium access control (MAC) control element (CE), or a downlink control information (DCI) communication.

[0113] In some aspects, the indication comprises an implicit indication of the second BWP configuration.

[0114] In some aspects, the implicit indication is based on a positioning reference signal (PRS) configuration, a sounding reference signal for positioning (SRS-P) configuration, or a combination thereof.

[0115] In some aspects, the implicit indication is based on configuring one or more time slots in which PRS and / or SRS-P or both are configured.

[0116] In some aspects, the instructions further cause the UE to: perform measurements on at least one of the plurality of reference signals used for positioning without the measurement gap.

[0117] In some aspects, transmitting according to the second BWP configuration includes performing measurements of a positioning reference signal (PRS), and the UE stops processing of one or more downlink channels during the measurement of the PRS.

[0118] In some aspects, the instructions further cause the UE to: transmit, with the base station, data traffic separated from the multiple reference signals used for positioning between two reference signals of the multiple reference signals used for positioning according to the first BWP configuration or the second BWP configuration.

[0119] In some aspects, the data traffic includes downlink data traffic, and the downlink data traffic is time division multiplexed (TDMed) with at least one downlink reference signal for positioning of a plurality of reference signals for positioning.

[0120] In some aspects, the plurality of reference signals used for positioning are transmitted across a plurality of positioning frequency layers, and the second BWP configuration includes one or more parameters that match a particular one of the plurality of positioning frequency layers.

[0121] In some aspects, the multiple reference signals used for positioning are associated with round trip time (RTT) measurements, multiple RTT measurements, single RTT measurements, differential RTT measurements, downlink angle of departure (AoD) measurements, uplink angle of arrival (AoA) measurements, or a combination thereof.

[0122] In some aspects, the instructions further cause the UE to: resume communication of data traffic with the base station according to the first BWP configuration after communication of the plurality of reference signals.

[0123] In some aspects, the bandwidth associated with the second BWP configuration is greater than the bandwidth associated with the first BWP configuration.

[0124] In some aspects, communicating according to the first BWP configuration and communicating according to the second BWP configuration occur while the UE is in a radio resource control (RRC) inactive state.

[0125] In some aspects, communicating according to the first BWP configuration and communicating according to the second BWP configuration occur while the UE is in a radio resource control (RRC) connected state.

[0126] In some aspects, the first BWP configuration is associated with a narrower bandwidth than the second BWP configuration.

[0127] In one aspect, a non-transitory computer-readable medium storing computer-executable instructions, which, when executed by a base station, cause the base station to: transmit data traffic with a user equipment (UE) according to a first bandwidth part (BWP) configuration; send an indication of a second BWP configuration including a bandwidth different from the first BWP configuration to the UE in association with communication of multiple reference signals for positioning; and transmit multiple reference signals for at least positioning according to the second BWP configuration for a duration of the communication of the multiple reference signals for positioning.

[0128] In some aspects, the plurality of reference signals includes a positioning reference signal (PRS) and a sounding reference signal for positioning (SRS-P).

[0129] In some aspects, the indication includes a displayed indication of the second BWP configuration.

[0130] In some aspects, the explicit indication is received via radio resource control (RRC) signaling, medium access control (MAC) control element (CE), or downlink control information (DCI) communication.

[0131] In some aspects, the indication comprises an implicit indication of the second BWP configuration.

[0132] In some aspects, the implicit indication is based on a positioning reference signal (PRS) configuration, a sounding reference signal for positioning (SRS-P) configuration, or a combination thereof.

[0133] In some aspects, the implicit indication is based on configuring one or more time slots in which PRS and / or SRS-P or both are configured.

[0134] In some aspects, the instructions further cause the base station to: transmit, with the UE, data traffic separated from the multiple reference signals used for positioning between two reference signals of the multiple reference signals used for positioning according to the first BWP configuration or the second BWP configuration.

[0135] In some aspects, the data traffic includes downlink data traffic, and the downlink data traffic is time division multiplexed (TDMed) with at least one downlink reference signal for positioning of a plurality of reference signals for positioning.

[0136] In some aspects, the plurality of reference signals used for positioning are transmitted across a plurality of positioning frequency layers, and the second BWP configuration includes one or more parameters that match a particular one of the plurality of positioning frequency layers.

[0137] In some aspects, the multiple reference signals used for positioning are associated with round trip time (RTT) measurements, multiple RTT measurements, single RTT measurements, differential RTT measurements, downlink angle of departure (AoD) measurements, uplink angle of arrival (AoA) measurements, or a combination thereof.

[0138] In some aspects, the instructions further cause the base station to: after the communication of the plurality of reference signals, resume communication of data traffic with the UE according to the first BWP configuration.

[0139] In some aspects, the bandwidth associated with the second BWP configuration is greater than the bandwidth associated with the first BWP configuration.

[0140] In some aspects, communicating according to the first BWP configuration and communicating according to the second BWP configuration occur while the UE is in a radio resource control (RRC) inactive state.

[0141] In some aspects, communicating according to the first BWP configuration and communicating according to the second BWP configuration occur while the UE is in a radio resource control (RRC) connected state.

[0142] In some aspects, the first BWP configuration is associated with a narrower bandwidth than the second BWP configuration.

[0143] Other objects and advantages associated with the various aspects disclosed herein will be apparent to those skilled in the art based on the drawings and detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0144] The accompanying drawings are presented to aid in describing various aspects of the disclosure and are provided solely for illustration of these aspects and not limitation thereof.

[0145] Figure 1

[0013] An example wireless communication system in accordance with various aspects is shown.

[0146] Figure 2A and Figure 2B Example wireless network architectures in accordance with various aspects are shown.

[0147] FIG. 3A to FIG. 3C is a simplified block diagram of several sample aspects of components that may be employed in a wireless communication node and configured to support communications as taught herein.

[0148] Figure 4A and Figure 4B is a diagram illustrating an example of a frame structure and channels within the frame structure according to aspects of the present disclosure.

[0149] Figure 5 Exemplary PRS configurations for cells supported by a wireless node are shown.

[0150] Figure 6 An exemplary wireless communication system in accordance with various aspects of the present disclosure is shown.

[0151] Figure 7 An exemplary wireless communication system in accordance with various aspects of the present disclosure is shown.

[0152] Fig. 8A is a graph illustrating RF channel response at a receiver over time in accordance with aspects of the present disclosure.

[0153] Figure 8B is a diagram showing this separation of clusters in AoD.

[0154] Fig. 9 A bandwidth part (BWP) reconfiguration scheme according to one aspect of the present disclosure is shown.

[0155] Fig.10 An exemplary process of wireless communication according to aspects of the present disclosure is shown.

[0156] Fig.11 An exemplary process of wireless communication according to aspects of the present disclosure is shown.

[0157] Fig.12 They are shown according to Figure 10 to Figure 11 An exemplary implementation of the BWP reconfiguration scheme of the process.

[0158] Fig.13 They are shown according to Figure 10 to Figure 11 Another exemplary implementation of the BWP reconfiguration scheme of the process. DETAILED DESCRIPTION

[0159] Various aspects of the present disclosure are provided in the following description and related drawings, which relate to various examples provided for illustrative purposes. Alternative aspects may be designed without departing from the scope of the present disclosure. In addition, well-known elements of the present disclosure may not be described in detail or may be omitted to avoid confusing the relevant details of the present disclosure.

[0160] The words "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. Likewise, the term "aspects of the disclosure" does not require that all aspects of the disclosure include the discussed feature, advantage, or mode of operation.

[0161] Those skilled in the art will appreciate that any of a variety of different technologies and techniques may 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 the following specification may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof, depending in part on the specific application, in part on the desired design, in part on the corresponding technology, etc.

[0162] In addition, many aspects are described in terms of a sequence of actions to be performed by, for example, elements of a computing device. It should be understood that the various actions described herein may be performed by a specific circuit (e.g., an application specific integrated circuit (ASIC)), by program instructions executed by one or more processors, or by a combination of the two. In addition, the sequence of actions described herein may be considered to be fully embodied in any form of non-transitory computer-readable storage medium, in which a corresponding set of computer instructions is stored, which, when executed, will cause or instruct the associated processor of the device to perform the functions described herein. Therefore, various aspects of the present disclosure may be embodied in a variety of different forms, all of which are considered to be within the scope of the claimed subject matter. In addition, for each aspect described herein, the corresponding form of any such aspect may be described as, for example, "logic configured to perform the action."

[0163] As used herein, unless otherwise noted, the terms "user equipment" (UE) and "base station" are not intended to be specific or otherwise limited to any specific radio access technology (RAT). In general, a UE may be any wireless communication device (e.g., a mobile phone, a router, a tablet, a laptop, a tracking device, a wearable device (e.g., a smart watch, glasses, augmented reality (AR) / virtual reality (VR) headsets, etc.), a vehicle (e.g., a car, a motorcycle, a bicycle, etc.), an Internet of Things (IoT) device, etc.) used by a user to communicate over a wireless communication network. A UE may be mobile or may be fixed (e.g., at certain times) and may communicate with a radio access network (RAN). As used herein, the term "UE" may be interchangeably referred to as an "access terminal" or "AT", "client device", "wireless device", "subscriber equipment", "subscriber terminal", "subscriber station", "user terminal" or UT, "mobile terminal", "mobile station" or variants thereof. Typically, a UE may communicate with a core network via a RAN, and through the core network, the UE may be connected to external networks such as the Internet and to other UEs. Of course, other mechanisms for the UE to connect to the core network and / or the Internet are also possible, such as through a wired access network, a wireless local area network (WLAN) network (eg, based on IEEE 802.11, etc.), and so on.

[0164] A base station may operate according to one of several RATs for communicating with a UE, depending on the network in which it is deployed, and may alternatively be referred to as an access point (AP), a network node, a NodeB, an evolved NodeB (eNB), a new radio (NR) NodeB (also referred to as a gNB or gNodeB), etc. In addition, in some systems, a base station may provide pure edge node signaling functions, while in other systems, a base station may provide additional control and / or network management functions. In some systems, a base station may correspond to a customer premises equipment (CPE) or a roadside unit (RSU). In some designs, a base station may correspond to a high-power UE (e.g., a vehicle UE or VUE) that may provide limited specific infrastructure functions. The communication link through which a UE may send a signal to a base station is referred to as an uplink (UL) channel (e.g., a reverse traffic channel, a reverse control channel, an access channel, etc.). The communication link through which a base station may send a signal to a UE is referred to as a downlink (DL) or forward link channel (e.g., a paging channel, a control channel, a broadcast channel, a forward traffic channel, etc.). As used herein, the term traffic channel (TCH) may refer to a UL / reverse or DL / forward traffic channel.

[0165] The term "base station" may refer to a single physical transmit-receive point (TRP) or to multiple physical TRPs that may or may not be co-located. For example, where the term "base station" refers to a single physical TRP, the physical TRP may be an antenna of the base station corresponding to the cell of the base station. Where the term "base station" refers to multiple co-located physical TRPs, the physical TRP may be an array of antennas of the base station (e.g., as in a multiple-input multiple-output (MIMO) system, or where the base station employs beamforming). Where the term "base station" refers to multiple non-co-located physical TRPs, the physical TRP may 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, the non-co-located physical TRP may be a serving base station that is receiving measurement reports from a UE and a neighboring base station whose reference RF signal is being measured by the UE. Because, as used herein, a TRP is a point at which a base station transmits and receives wireless signals, references to transmissions from a base station or receptions at a base station will be understood to refer to a specific TRP of a base station.

[0166] An "RF signal" includes an electromagnetic wave of a given frequency that transmits information through the space between a transmitter and a receiver. As used herein, a transmitter may transmit a single "RF signal" or multiple "RF signals" to a receiver. However, due to the propagation characteristics of RF signals through multipath channels, a receiver may receive multiple "RF signals" corresponding to each transmitted RF signal. The same transmitted RF signal on different paths between a transmitter and a receiver may be referred to as a "multipath" RF signal.

[0167] According to various aspects, Figure 1 An exemplary wireless communication system 100 is shown. The wireless communication system 100 (which may also be referred to as a wireless wide area network (WWAN)) may include various base stations 102 and various UEs 104. The base stations 102 may include macrocell base stations (high-power cellular base stations) and / or small cell base stations (low-power cellular base stations). In one aspect, the macrocell 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 an NR network, or a combination of both, and the small cell base station may include a femtocell, a picocell, a microcell, etc.

[0168] The base stations 102 may collectively form a RAN and interface with a core network 170 (e.g., an evolved packet core (EPC) or a next generation core (NGC)) via a backhaul link 122, and through the core network 170 to one or more location servers 172. The base stations 102 may perform, among other functions, functions related to one or more of: transmission of 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), subscriber and device tracking, RAN information management (RIM), paging, positioning, and delivery of warning messages. The base stations 102 may communicate with each other directly or indirectly (e.g., via the EPC / NGC) over a backhaul link 134, which may be wired or wireless.

[0169] Base station 102 can communicate wirelessly with UE 104. Each of base stations 102 can provide communication coverage for a corresponding geographic coverage area 110. In one aspect, base station 102 in each coverage area 110 can support one or more cells. A "cell" is a logical communication entity used to communicate with a base station (e.g., on a certain frequency resource, referred to as a carrier frequency, component carrier, carrier, frequency band, etc.), and can be associated with an identifier (e.g., a physical cell identifier (PCI), a virtual cell identifier (VCI)) for distinguishing 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 other) that can provide access to different types of UEs. Because a cell is supported by a specific base station, the term "cell" can refer to one or both of the logical communication entity and the base station that supports it, depending on the context. In some cases, as long as the carrier frequency can be detected and used for communication within some parts of the geographic coverage area 110, the term "cell" can also refer to the geographic coverage area (e.g., sector) of the base station.

[0170] Although the geographic coverage areas 110 of adjacent macrocell base stations 102 may partially overlap (e.g., in a handoff region), some geographic coverage areas 110 may be substantially overlapped by different geographic coverage areas 110. For example, a small cell base station 102' may have a coverage area 110' that substantially overlaps with the coverage areas 110 of one or more macrocell base stations 102. A network that includes both small cell base stations and macrocell base stations may be referred to as a heterogeneous network. A heterogeneous network may also include a Home eNB (HeNB), which may provide services to a restricted group referred to as a Closed Subscriber Group (CSG).

[0171] The communication link 120 between the base station 102 and the UE 104 may include UL (also referred to as a reverse link) transmissions from the UE 104 to the base station 102 and / or downlink (DL) (also referred to as a forward link) transmissions from the base station 102 to the UE 104. The communication link 120 may use MIMO antenna techniques including spatial multiplexing, beamforming, and / or transmit diversity. The communication link 120 may be over one or more carrier frequencies. The allocation of carriers may be asymmetric with respect to DL and UL (e.g., more or fewer carriers may be allocated for DL ​​compared to UL).

[0172] The wireless communication system 100 may also include a wireless local area network (WLAN) access point (AP) 150 that communicates with a WLAN station (STA) 152 via a communication link 154 in an unlicensed spectrum (e.g., 5 GHz). When communicating in the unlicensed spectrum, the WLAN STA 152 and / or the WLAN AP 150 may perform a clear channel assessment (CCA) or listen before talk (LBT) to determine whether the channel is available before communicating.

[0173] The small cell base station 102' can operate in licensed and / or unlicensed spectrum. When operating in the unlicensed spectrum, the small cell base station 102' can adopt LTE or NR technology and use the same 5GHz unlicensed spectrum used by the WLAN AP 150. The small cell 102' adopting LTE / 5G in the unlicensed spectrum can improve the coverage of the access network and / or increase its capacity. NR in the unlicensed spectrum can be referred to as NR-U. LTE in the unlicensed spectrum can be referred to as LTE-U, License Assisted Access (LAA) or MulteFire.

[0174] The wireless communication system 100 may also include a millimeter wave (mmW) base station 180, which can communicate with UE 182 at millimeter wave frequencies and / or near millimeter wave frequencies. Extremely high frequency (EHF) is part of RF in the electromagnetic spectrum. EHF ranges from 30GHz to 300GHz, with wavelengths between 1 mm and 10 mm. Radio waves in this band may be referred to as millimeter waves. Near mmW may extend down to 3GHz frequencies with a wavelength of 100 mm. The super high frequency (SHF) band extends between 3GHz and 30GHz, also known as centimeter waves. Communications using mmW / near mmW radio frequency bands have higher path losses and relatively short distances. The mmW base station 180 and UE 182 can utilize beamforming (transmitting and / or receiving) on ​​the mmW communication link 184 to compensate for the extremely high path losses and short distances. In addition, it should be understood that in an alternative configuration, one or more base stations 102 may also use mmW or near mmW and beamforming to transmit. Therefore, it should be understood that the foregoing diagrams are merely examples, and should not be construed as limiting the various aspects disclosed herein.

[0175] Transmit beamforming is a technique for focusing 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). With transmit beamforming, the network node determines the location of a given target device (e.g., a UE) (relative to the transmitting network node) and projects a stronger downlink RF signal in that specific direction, thereby providing a faster (in terms of data rate) and stronger RF signal to the receiving device. In order to change the directionality of the RF signal when transmitting, the network node can control the phase and relative amplitude of the RF signal at each of the one or more transmitters that broadcast the RF signal. For example, the network node can use an array of antennas (referred to as a "phased array" or "antenna array") that produces a beam of RF waves that can be "steered" to point in different directions without actually moving the antenna. Specifically, the RF current from the transmitter is fed to each antenna in the correct phase relationship, so that the radio waves from the separate antennas are added together in the desired direction to increase the radiation, while canceling out in the undesired direction to suppress the radiation.

[0176] The transmit beams can be quasi-co-located, which means that they appear to the receiver (UE) to have the same parameters, regardless of whether the transmit antennas of the network nodes themselves are physically co-located. In NR, there are four types of quasi-co-location (QCL) relationships. Specifically, a given type of QCL relationship means that certain parameters about the second reference RF signal on the second beam can be derived from information about the source reference RF signal on the source beam. Therefore, if the source reference RF signal is QCL type A, the receiver can use the source reference RF signal to estimate the Doppler shift, Doppler spread, average delay and delay spread of the second reference RF signal sent on the same channel. If the source reference RF signal is QCL type B, the receiver can use the source reference RF signal to estimate the Doppler shift and Doppler spread of the second reference RF signal sent on the same channel. If the source reference RF signal is QCL type C, the receiver can use the source reference RF signal to estimate the Doppler shift and average delay of the second reference RF signal sent on the same channel. If the source reference RF signal is QCL type D, the receiver can use the source reference RF signal to estimate the spatial reception parameters of the second reference RF signal sent on the same channel.

[0177] In receive beamforming, the receiver uses receive beams to amplify RF signals 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 particular direction to amplify the RF signals received from that direction (e.g., increase its gain level). Therefore, when it is said that the receiver beamforms 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 compared to the beam gain in that direction of all other receive beams available to the receiver. This results in the RF signal received from that direction having a stronger received signal strength (e.g., reference signal received power (RSRP), reference signal received quality (RSRQ), signal to interference plus noise ratio (SINR), etc.).

[0178] The receive beams may be spatially correlated. The spatial relationship means that the parameters of the transmit beam for the second reference signal may be derived from information about the receive beam for the first reference signal. For example, the UE may use a particular receive beam to receive a reference downlink reference signal (e.g., a synchronization signal block (SSB)) from a base station. The UE may then form a transmit beam for transmitting an uplink reference signal (e.g., a sounding reference signal (SRS)) to the base station based on the parameters of the receive beam.

[0179] Note that a "downlink" beam can be a transmit beam or a receive beam, depending on the entity that forms it. For example, if the base station is forming a downlink beam to send a reference signal to the UE, the downlink beam is a transmit beam. However, if the UE is forming a downlink beam, it is a receive beam used to receive downlink reference signals. Similarly, an "uplink" beam can be a transmit beam or a receive beam, depending on the entity that forms it. For example, if the base station is forming an uplink beam, it is an uplink receive beam, and if the UE is forming an uplink beam, it is an uplink transmit beam.

[0180] In 5G, the spectrum in which wireless nodes (e.g., base stations 102 / 180, UEs 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 a multi-carrier system such as 5G, one of the carrier frequencies is called a "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 "Scells". In carrier aggregation, the anchor carrier is a carrier operating on the primary frequency (e.g., FR1) used by the UE 104 / 182 and the cell in which the UE 104 / 182 performs an initial radio resource control (RRC) connection establishment procedure or initiates an RRC connection reestablishment procedure. The primary carrier carries all common and UE-specific control channels and can be a carrier in a licensed frequency (however, this is not always the case). A secondary carrier is a carrier operating on a second frequency (e.g., FR2) that can be configured once an RRC connection is established between the UE 104 and the anchor carrier, and can be used to provide additional radio resources. In some cases, the secondary carrier can be a carrier in an unlicensed frequency. The secondary carrier may contain only necessary signaling information and signals, for example, since both the primary uplink and downlink carriers are typically UE-specific, there may be no UE-specific signaling information and signals in the secondary carrier. This means that different UEs 104 / 182 in a cell can have different downlink primary carriers. The same is true for the uplink primary carrier. The network is able to change the primary carrier of any UE 104 / 182 at any time. For example, this is done to balance the load on different carriers. Because a "serving cell" (whether a PCell or an SCell) corresponds to a carrier frequency / component carrier on which a certain base station is communicating, the terms "cell", "serving cell", "component carrier", "carrier frequency", etc. can be used interchangeably.

[0181] For example, still referring to Figure 1 , one of the frequencies utilized by the macrocell base station 102 may be an anchor carrier (or "PCell"), while the other frequencies utilized by the macrocell base station 102 and / or the mmW base station 180 may be secondary carriers ("Scell"). Simultaneous transmission and / or reception of multiple carriers enables the UE 104 / 182 to significantly increase its data transmission and / or reception rate. For example, two 20 MHz aggregated carriers in a multi-carrier system will theoretically result in a two-fold increase in data rate (i.e., 40 MHz) compared to the rate achieved by a single 20 MHz carrier.

[0182] The wireless communication system 100 may also include one or more UEs, such as UE 190, that are indirectly connected to one or more communication networks via one or more device-to-device (D2D) peer-to-peer (P2P) links. Figure 1 In the example of FIG. 1 , UE 190 has a D2D P2P link 192, where one of UEs 104 is connected to one of base stations 102 (e.g., through which UE 190 can indirectly obtain cellular connectivity), and has a D2D P2P link 194, where WLAN STA 152 is connected to WLAN AP 150 (through which UE 190 can indirectly obtain WLAN-based Internet connectivity). In the example, D2D P2P links 192 and 194 can be supported by any well-known D2D RAT, such as LTE Direct (LTE-D), WiFi Direct (WiFi-D), wait.

[0183] The wireless communication system 100 may also include a UE 164, which may communicate with the macrocell base station 102 via a communication link 120, and / or communicate with the mmW base station 180 via a mmW communication link 184. For example, the macrocell base station 102 may support a PCell and one or more SCells for the UE 164, and the mmW base station 180 may support one or more SCells for the UE 164.

[0184] According to various aspects, Figure 2A An exemplary wireless network structure 200 is shown. For example, NGC 210 (also referred to as "5GC") can be functionally viewed as a control plane function 214 (e.g., UE registration, authentication, network access, gateway selection, etc.) and a user plane function 212 (e.g., UE gateway function, access to data networks, IP routing, etc.), which can operate in conjunction to form a core network. A user plane interface (NG-U) 213 and a control plane interface (NG-C) 215 connect the gNB 222 to the NGC 210, specifically to the control plane function 214 and the user plane function 212. In another configuration, the eNB 224 can also be connected to the NGC 210 via the NG-C 215 to the control plane function 214 and the NG-U 213 to the user plane function 212. In addition, the eNB 224 can communicate directly with the gNB 222 via the backhaul connection 223. In some configurations, the new RAN 220 may have only one or more gNBs 222, while other configurations include one or more of both eNBs 224 and gNBs 222. Either the gNB 222 or the eNB 224 may communicate with the UE 204 (e.g., Figure 1204). Another optional aspect may include a location server 230 that may communicate with the NGC 210 to provide location assistance for the UE 204. The 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, may each correspond to a single server. The location server 230 may be configured to support one or more location services for the UE 204, which may be connected to the location server 230 via the core network, the NGC 210, and / or via the Internet (not shown). In addition, the location server 230 may be integrated into a component of the core network, or alternatively may be external to the core network.

[0185] According to various aspects, Figure 2B Another exemplary wireless network structure 250 is shown. For example, the NGC 260 (also referred to as "5GC") can be functionally viewed as a control plane function provided by an access and mobility management function (AMF) / user plane function (UPF) 264 and a user plane function provided by a session management function (SMF) 262, which can operate in conjunction to form a core network (i.e., NGC 260). The user plane interface 263 and the control plane interface 265 connect the eNB 224 to the NGC 260, and specifically to the SMF 262 and the AMF / UPF 264, respectively. In another configuration, the gNB 222 can also be connected to the NGC 260 via a control plane interface 265 to the AMF / UPF 264 and a user plane interface 263 to the SMF 262. In addition, the eNB 224 can communicate directly with the gNB 222 via a backhaul connection 223 with or without gNB direct connectivity to the NGC 260. In some configurations, the new RAN 220 may have only one or more gNBs 222, while other configurations include one or more of both eNBs 224 and gNBs 222. Either the gNB 222 or the eNB 224 may communicate with the UE 204 (e.g., Figure 1 The base station of the new RAN 220 communicates with the AMF side of the AMF / UPF 264 through the N2 interface, and communicates with the UPF side of the AMF / UPF 264 through the N3 interface.

[0186] The functions of AMF include registration management, connection management, reachability management, mobility management, lawful interception, transmission of session management (SM) messages between UE 204 and SMF 262, transparent proxy service for routing SM messages, access authentication and access authorization, transmission of short message service (SMS) messages between UE 204 and short message service function (SMSF) (not shown), and security anchor function (SEAF). AMF also interacts with authentication server function (AUSF) (not shown) and UE 204, and receives intermediate keys established as a result of the UE 204 authentication process. In the case of authentication based on UMTS (Universal Mobile Telecommunications System) User Identity Module (USIM), AMF retrieves security materials from AUSF. The functions of AMF also include security context management (SCM). SCM receives keys from SEAF, which uses the keys to derive access network-specific keys. The functions of AMF also include location service management for regulatory services, transmission of location service messages between UE 204 and location management function (LMF) 270 and between new RAN 220 and LMF 270, allocation of evolved packet system (EPS) bearer identifiers for interworking with EPS, and notification of mobility events of UE 204. In addition, AMF also supports functions for non-3GPP access networks.

[0187] The functions of the UPF include: acting as an anchor point for intra-RAT / inter-RAT mobility (when applicable), acting as an external protocol data unit (PDU) session point for interconnection with the data network (not shown), providing packet routing and forwarding, packet inspection, user plane policy rule enforcement (e.g., gating, redirection, traffic manipulation), lawful interception (user plane collection), traffic usage reporting, user plane quality of service (QoS) processing (e.g., UL / DL rate enforcement, reflective QoS marking in DL), UL service verification (service data flow (SDF) to QoS flow mapping), transport level packet marking in UL and DL, DL packet buffering and DL data notification triggering, and sending and forwarding of one or more "end markers" to the source RAN node.

[0188] The functions of SMF 262 include session management, UE Internet Protocol (IP) address allocation and management, selection and control of user plane functions, configuring service manipulation at UPF to route services to the correct destination, controlling partial policy enforcement and QoS, and downlink data notification. The interface through which SMF 262 communicates with the AMF side of AMF / UPF 264 is called the N11 interface.

[0189] Another optional aspect may include LMF 270, which may communicate with NGC 260 to provide location assistance for UE 204. LMF 270 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. LMF 270 may be configured to support one or more location services for UE 204, which may be connected to LMF 270 via a core network, NGC 260, and / or via the Internet (not shown).

[0190] Figure 3A , Figure 3B and Figure 3C Several sample components (represented by corresponding boxes) are shown that can be incorporated into UE 302 (which can correspond to any UE described herein), base station 304 (which can correspond to any base station described herein), and network entity 306 (which can correspond to or embody any network function described herein, including location server 230 and LMF 270) to support file transfer operations as taught herein. It should be understood that these components can be implemented in different types of devices in different specific implementations (e.g., in an ASIC, in a system on a chip (SoC), etc.). The components shown can also be incorporated into other devices in the communication system. For example, other devices in the system may include components similar to those described to provide similar functions. In addition, a given device may include one or more of the components. For example, a device may include multiple transceiver components that enable the device to operate on multiple carriers and / or communicate via different technologies.

[0191] UE 302 and base station 304 each include a wireless wide area network (WWAN) transceiver 310 and 350, respectively, which is configured to communicate via one or more wireless communication networks (not shown) such as NR network, LTE network, GSM network, etc. WWAN transceivers 310 and 350 can be connected to one or more antennas 316 and 356, respectively, for communicating with other network nodes such as other UEs, access points, base stations (e.g., eNB, gNB), etc. via at least one designated RAT (e.g., NR, LTE, GSM, etc.) over a wireless communication medium of interest (e.g., some set of time / frequency resources in a specific spectrum). WWAN transceivers 310 and 350 can be configured differently for sending and encoding signals 318 and 358 (e.g., messages, indications, information, etc.), respectively, according to the designated RAT, and conversely, receiving and decoding signals 318 and 358 (e.g., messages, indications, information, pilots, etc.), respectively. Specifically, transceivers 310 and 350 include one or more transmitters 314 and 354, respectively, for transmitting and encoding signals 318 and 358, respectively, and one or more receivers 312 and 352, respectively, for receiving and decoding signals 318 and 358, respectively.

[0192] UE 302 and base station 304 also include, at least in some cases, wireless local area network (WLAN) transceivers 320 and 360, respectively. WWAN transceivers 320 and 360 can be connected to one or more antennas 326 and 366, respectively, for communicating via at least one designated RAT (e.g., WiFi, LTE-D, The WWAN transceivers 320 and 360 may be configured differently to transmit and encode signals 328 and 368 (e.g., messages, indications, information, etc.) according to a specified RAT, and conversely, to receive and decode signals 328 and 368 (e.g., messages, indications, information, pilots, etc.). Specifically, the transceivers 320 and 360 include one or more transmitters 324 and 364, respectively, for transmitting and encoding signals 328 and 368, respectively, and one or more receivers 322 and 362, respectively, for receiving and decoding signals 328 and 368, respectively.

[0193] The transceiver circuitry including the transmitter and the receiver may include an integrated device (e.g., transmitter circuitry and receiver circuitry embodied as a single communication device) in some implementations, may include separate transmitter devices and separate receiver devices in some implementations, or may be embodied in other ways in other implementations. In one aspect, the transmitter may include or be coupled to multiple antennas (e.g., antennas 316, 336, and 376), such as an antenna array, which allows the corresponding device to perform transmit "beamforming", as described herein. Similarly, the receiver may include or be coupled to multiple antennas (e.g., antennas 316, 336, and 376), such as an antenna array, which allows the corresponding device to perform receive beamforming, as described herein. In one aspect, the transmitter and receiver may share the same multiple antennas (e.g., antennas 316, 336, and 376) so that the corresponding device can only receive or transmit at a given time, rather than both at the same time. The wireless communication device of apparatus 302 and / or 304 (eg, one or both of transceivers 310 and 320 and / or 350 and 360 ) may also include a network listening module (NLM) or the like for performing various measurements.

[0194] Devices 302 and 304 also include, at least in some cases, satellite positioning system (SPS) receivers 330 and 370. SPS receivers 330 and 370 may be connected to one or more antennas 336 and 376, respectively, for receiving SPS signals 338 and 378, respectively, such as global positioning system (GPS) signals, global navigation satellite system (GLONASS) signals, Galileo signals, BeiDou signals, Indian regional navigation satellite system (NAVIC), Quasi-Zenith Satellite System (QZSS), etc. SPS receivers 330 and 370 may include any suitable hardware and / or software for receiving and processing SPS signals 338 and 378, respectively. SPS receivers 330 and 370 request information and operations from other systems as appropriate, and use measurements obtained by any suitable SPS algorithm to perform calculations necessary to determine the location of devices 302 and 304.

[0195] The base station 304 and the network entity 306 each include at least one network interface 380 and 390 for communicating with other network entities. For example, the network interfaces 380 and 390 (e.g., one or more network access ports) can be configured to communicate with one or more network entities via a wired or wireless backhaul connection. In some aspects, the network interfaces 380 and 390 can be implemented as transceivers configured to support wired or wireless signal communication. Such communication can involve, for example, sending and receiving: messages, parameters, or other types of information.

[0196] Apparatuses 302, 304, and 306 also include other components that may be used in conjunction with the operations disclosed herein. UE 302 includes a processor circuit that implements a processing system 332 for providing functions associated with, for example, false base station (FBS) detection as disclosed herein, and for providing other processing functions. Base station 304 includes a processing system 384 for providing functions associated with, for example, FBS detection as disclosed herein, and for providing other processing functions. Network entity 306 includes a processing system 394 for providing functions associated with, for example, FBS detection as disclosed herein, and for providing other processing functions. In one aspect, processing systems 332, 384, and 394 may include, for example, one or more general purpose processors, multi-core processors, ASICs, digital signal processors (DSPs), field programmable gate arrays (FPGAs), or other programmable logic devices or processing circuits.

[0197] The apparatuses 302, 304, and 306 include memory circuitry that implements memory components 340, 386, and 396, respectively (e.g., each including a memory device), for maintaining information (e.g., information indicating reserved resources, thresholds, parameters, etc.). In some cases, the apparatuses 302, 304, and 306 may include BWP configuration modules 342 and 388, respectively. The BWP configuration modules 342 and 388 may be hardware circuitry that is part of or coupled to the processing systems 332, 384, and 394, respectively, which, when executed, causes the apparatuses 302, 304, and 306 to perform the functions described herein. Alternatively, the BWP configuration modules 342 and 388 may be memory modules (e.g., memory devices) stored in the memory components 340, 386, and 396, respectively. Figure 3A -C), which, when executed by processing systems 332, 384 and 394, causes devices 302, 304 and 306 to perform the functions described herein.

[0198] UE 302 may include one or more sensors 344 coupled to processing system 332 to provide movement and / or orientation information independent of motion data derived from signals received from WWAN transceiver 310, WLAN transceiver 320, and / or GPS receiver 330. As an example, sensor 344 may include an accelerometer (e.g., a microelectromechanical system (MEMS) device), a gyroscope, a geomagnetic sensor (e.g., a compass), an altimeter (e.g., a barometric altimeter), and / or any other type of motion detection sensor. In addition, sensor 344 may include multiple different types of devices and combine their outputs to provide motion information. For example, sensor 344 may use a combination of a multi-axis accelerometer and an orientation sensor to provide the ability to calculate positioning in a 2D and / or 3D coordinate system.

[0199] In addition, UE 302 includes a user interface 346 for providing indications to the user (e.g., auditory and / or visual indications) and / or for receiving user input (e.g., when the user actuates a sensing device such as a keyboard, touch screen, microphone, etc.). Although not shown, apparatuses 304 and 306 may also include a user interface.

[0200] Referring to the processing system 384 in more detail, in the downlink, IP packets from the network entity 306 may be provided to the processing system 384. The processing system 384 may implement the functions of the RRC layer, the Packet Data Convergence Protocol (PDCP) layer, the Radio Link Control (RLC) layer, and the Medium Access Control (MAC) layer. The processing system 384 can provide the following functions: RRC layer functions associated with broadcasting of system information (e.g., master information block (MIB), system information block (SIB)), RRC connection control (e.g., RRC connection paging, RRC connection establishment, RRC connection modification, and RRC connection release), inter-RAT mobility, and measurement configuration for UE measurement reporting; PDCP layer functions associated with header compression / decompression, security (encryption, decryption, integrity protection, integrity verification), and handover support functions; RLC layer functions associated with transmission of upper layer packet data units (PDUs), error correction through ARQ, concatenation, segmentation and reassembly of RLC service data units (SDUs), re-segmentation of RLC data PDUs, and reordering of RLC data PDUs; and MAC layer functions associated with mapping between logical channels and transport channels, scheduling information reporting, error correction, priority handling, and logical channel prioritization.

[0201] The transmitter 354 and the receiver 352 may implement layer 1 functions associated with various signal processing functions. Layer 1, including the physical (PHY) layer, may include error detection on the transmission channel, forward error correction (FEC) encoding / decoding of the transmission channel, interleaving, rate matching, mapping to physical channels, modulation / demodulation of physical channels, and MIMO antenna processing. The transmitter 354 processes the mapping to the signal constellation based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)). The coded and modulated symbols may then be split into parallel streams. Each stream may then be mapped to an orthogonal frequency division multiplexing (OFDM) subcarrier, multiplexed with a reference signal (e.g., pilot) in the time and / or frequency domain, and then combined together using an inverse fast Fourier transform (IFFT) to produce a physical channel carrying a time domain OFDM symbol stream. The OFDM stream is spatially precoded to produce multiple spatial streams. The channel estimate from the channel estimator may be used to determine the coding and modulation schemes, as well as for spatial processing. The channel estimate may be derived from a reference signal and / or channel condition feedback sent by the UE 302. Each spatial stream may then be provided to one or more different antennas 356. The transmitter 354 may modulate an RF carrier with a corresponding spatial stream for transmission.

[0202] At the UE 302, the receiver 312 receives the signal through its corresponding antenna 316. The receiver 312 recovers the information modulated onto the RF carrier and provides the information to the processing system 332. The transmitter 314 and the receiver 312 implement layer 1 functions associated with various signal processing functions. The receiver 312 can perform spatial processing on the information to recover any spatial stream destined for the UE 302. If multiple spatial streams are destined for the UE 302, they can be combined into a single OFDM symbol stream by the receiver 312. The receiver 312 then converts the OFDM symbol stream from the time domain to the frequency domain using a fast Fourier transform (FFT). The frequency domain signal includes a separate OFDM symbol stream for each subcarrier of the OFDM signal. By determining the most likely signal constellation point sent by the base station 304, the symbols on each subcarrier and the reference signal can be recovered and demodulated. These soft decisions can be based on channel estimates calculated by the channel estimator. The soft decisions are then decoded and deinterleaved to recover the data and control signals originally sent by the base station 304 on the physical channel. The data and control signals are then provided to the processing system 332, which implements the layer 3 and layer 2 functions.

[0203] In the UL, the processing system 332 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover IP packets from the core network. The processing system 332 is also responsible for error detection.

[0204] Similar to the functions described in conjunction with the DL transmission of the base station 304, the processing system 332 provides the following functions: RRC layer functions associated with system information (e.g., MIB, SIB) acquisition, RRC connection and measurement reporting; PDCP layer functions associated with header compression / decompression and security (encryption, decryption, integrity protection, integrity verification); RLC layer functions associated with transmission of upper layer PDUs, error correction through ARQ, concatenation, segmentation and reassembly of RLC SDUs, resegmentation of RLC data PDUs, and reordering of RLC data PDUs; and MAC layer functions associated with mapping between logical channels and transport channels, multiplexing of MAC SDUs into transport blocks (TBs), demultiplexing of MAC SDUs from TBs, scheduling information reporting, error correction through HARQ, priority processing, and logical channel prioritization.

[0205] Channel estimates derived by the channel estimator from a reference signal or feedback sent by the base station 304 may be used by the transmitter 314 to select appropriate coding and modulation schemes and to facilitate spatial processing. The spatial streams generated by the transmitter 314 may be provided to different antennas 316. The transmitter 314 may modulate an RF carrier with a corresponding spatial stream for transmission.

[0206] UL transmissions are processed at the base station 304 in a manner similar to that described in conjunction with the receiver functionality at the UE 302. The receiver 352 receives the signal through its respective antenna 356. The receiver 352 recovers the information modulated onto the RF carrier and provides the information to the processing system 384.

[0207] In the UL, the processing system 384 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover IP packets from the UE 302. The IP packets from the processing system 384 may be provided to the core network. The processing system 384 is also responsible for error detection.

[0208] For convenience, devices 302, 304 and / or 306 are Figure 3A -C is shown as including various components that can be configured according to various examples described herein. However, it should be understood that the blocks shown may have different functions in different designs.

[0209] The various components of devices 302, 304, and 306 may communicate with one another via data buses 334, 382, ​​and 392, respectively. Figure 3A-C components can be implemented in various ways. In some specific implementations, Figure 3A -C components may be implemented in one or more circuits, such as one or more processors and / or one or more ASICs (which may include one or more processors). Here, each circuit may use and / or combine at least one memory component to store information or executable code used by the circuit to provide the function. For example, some or all of the functions represented by blocks 310 to 346 may be implemented by the processor and memory components of UE 302 (e.g., by executing appropriate codes and / or by appropriate configuration of processor components). Similarly, some or all of the functions represented by blocks 350 to 388 may be implemented by the processor and memory components of base station 304 (e.g., by executing appropriate codes and / or by appropriate configuration of processor components). In addition, some or all of the functions represented by blocks 390 to 396 may be implemented by the processor and memory components of network entity 306 (e.g., by executing appropriate codes and / or by appropriate configuration of processor components). For simplicity, various operations, actions and / or functions are described herein as being performed by "UE", "by base station", "by positioning entity", etc. However, as will be appreciated, such operations, actions and / or functions may actually be performed by a specific component or combination of components of the UE, base station, positioning entity, etc., such as processing systems 332, 384, 394, transceivers 310, 320, 350 and 360, memory components 340, 386 and 396, BWP configuration modules 342 and 388, etc.

[0210] Figure 4A is a diagram 400 illustrating an example of a DL frame structure in accordance with aspects of the present disclosure. Figure 4B is a diagram 430 illustrating an example of channels within a DL frame structure in accordance with aspects of the present disclosure. Other wireless communication technologies may have different frame structures and / or different channels.

[0211] LTE, and in some cases NR, use OFDM on the downlink and single carrier frequency division multiplexing (SC-FDM) on the uplink. However, unlike LTE, NR can also choose to use OFDM on the uplink. OFDM and SC-FDM divide the system bandwidth into multiple (K) orthogonal subcarriers, which are also commonly called tones, bins, etc. Each subcarrier can be modulated with data. In general, modulation symbols are sent in the frequency domain using OFDM and in the time domain using SC-FDM. The spacing between adjacent subcarriers can be fixed, and the total number of subcarriers (K) can depend on the system bandwidth. For example, the spacing of the subcarriers can be 15kHz, and the minimum resource allocation (resource block) can be 12 subcarriers (or 180kHz). Therefore, for system bandwidths of 1.25, 2.5, 5, 10, or 20 megahertz (MHz), the nominal FFT size can be equal to 128, 256, 512, 1024, or 2048, respectively. The system bandwidth can also be divided into subbands. For example, one subband may cover 1.08 MHz (eg, 6 resource blocks), and there may be 1, 2, 4, 8, or 16 subbands for system bandwidths of 1.25, 2.5, 5, 10, or 20 MHz, respectively.

[0212] LTE supports a single parameter set (subcarrier spacing, symbol length, etc.). In contrast, NR can support multiple parameter sets, for example, 15kHz, 30kHz, 60kHz, 120kHz, and 204kHz or larger subcarrier spacing may be available. Table 1 provided below lists some of the different parameters used for different NR parameter sets.

[0213]

[0214] Table 1

[0215] exist Figure 4A and Figure 4B In the example of , a 15kHz parameter set is used. Therefore, in the time domain, a frame (e.g. 10ms) is divided into 10 equally sized subframes, each of which is 1 millisecond and each of which includes a time slot. Figure 4A and Figure 4B In a 3D image, time (eg, on the X-axis) is represented horizontally, where time increases from left to right, and frequency (eg, on the Y-axis) is represented vertically, where frequency increases (or decreases) from bottom to top.

[0216] A resource grid may be used to represent a time slot, each of which includes one or more time-concurrent resource blocks (RBs) (also called physical RBs (PRBs)) in the frequency domain. A resource grid is further divided into a number of resource elements (REs). An RE may correspond to one symbol length in the time domain and one subcarrier in the frequency domain. Figure 4A and Figure 4B In the parameter set of , for a normal cyclic prefix, an RB can contain 12 consecutive subcarriers in the frequency domain and 7 consecutive symbols in the time domain (for DL, OFDM symbols; for UL, SC-FDMA symbols), for a total of 84 REs. For an extended cyclic prefix, an RB can contain 12 consecutive subcarriers in the frequency domain and 6 consecutive symbols in the time domain, for a total of 72 REs. The number of bits carried by each RE depends on the modulation scheme.

[0217] like Figure 4A As shown, some REs carry DL reference (pilot) signals (DL-RS) for channel estimation at the UE. DL-RS may include a demodulation reference signal (DMRS) and a channel state information reference signal (CSI-RS), and their exemplary locations are Figure 4A Marked with "R".

[0218] Figure 4B Examples of various channels within a DL subframe of a frame are shown. The physical downlink control channel (PDCCH) carries DL control information (DCI) within one or more control channel elements (CCEs), each CCE comprising nine RE groups (REGs), each REG comprising four consecutive REs in an OFDM symbol. The DCI carries information about UL resource allocations (persistent and non-persistent) and a description of the DL data sent to the UE. Multiple (e.g., up to 8) DCIs can be configured in the PDCCH, and these DCIs can have one of a variety of formats. For example, there are different DCI formats for UL scheduling, non-MIMO DL scheduling, MIMO DL scheduling, and UL power control.

[0219] The UE uses the primary synchronization signal (PSS) to determine the subframe / symbol timing and physical layer identification. The UE uses the secondary synchronization signal (SSS) to determine the physical layer cell identification group number and the radio frame timing. Based on the physical layer identification and the physical layer cell identification group number, the UE can determine the PCI. Based on the PCI, the UE can determine the location of the above-mentioned DL-RS. The physical broadcast channel (PBCH) carrying the MIB can be logically grouped with the PSS and SSS to form an SSB (also called SS / PBCH). The MIB provides a number of RBs in the DL system bandwidth and system frame number (SFN). The physical downlink shared channel (PDSCH) carries user data, broadcast system information (such as system information blocks (SIBs)) that is not sent through the PBCH, and paging messages.

[0220] In some cases, Figure 4A The DL RS shown may be a Positioning Reference Signal (PRS). Figure 5An exemplary PRS configuration 500 for a cell supported by a wireless node, such as base station 102, is shown. Figure 5 It shows how the PRS positioning opportunity is determined by the system frame number (SFN), the cell-specific subframe offset (Δ PRS )552 and PRS period (T PRS ) 520. Typically, the cell-specific PRS subframe configuration is determined by a “PRS configuration index” contained in the observed time difference of arrival (OTDOA) assistance data. PRS Definition. PRS period (T PRS )520 and cell-specific subframe offset (Δ PRS ) is based on PRS configuration index I PRS The definition is shown in Table 2 below.

[0221]

[0222]

[0223] Table 2

[0224] The PRS configuration is defined with reference to the SFN of the cell that transmits the PRS. PRS The first subframe of the downlink subframe, the PRS instance may satisfy:

[0225]

[0226] Among them, n f is SFN, 0≤n f ≤1023, n s Because f The timeslot number within the defined radio frame, 0 ≤ n s ≤19, T PRS is the PRS period 520, and Δ PRS It is the cell-specific subframe offset 552.

[0227] like Figure 5 As shown, the cell-specific subframe offset Δ PRS 552 may be defined based on the number of subframes transmitted starting from system frame number 0 (time slot "number 0", denoted as time slot 550) to the start of the first (subsequent) PRS positioning opportunity. Figure 5 In the example of FIG. 5 , the number of consecutive positioning subframes (N) in each consecutive PRS positioning opportunity 518a, 518b, and 518c is PRS ) is equal to 4. That is, each shaded block representing the PRS positioning opportunities 518a, 518b, and 518c represents four subframes.

[0228] In some aspects, when a UE receives a PRS configuration index I in OTDOA assistance data for a particular cell, PRS When the UE can use Table 2 to determine the PRS period T PRS 520 and PRS subframe offset Δ PRS . The UE may then determine the radio frame, subframe, and time slot when scheduling PRS in the cell (e.g., by using equation (1)). The OTDOA assistance data may be determined, for example, by a location server (e.g., location server 230, LMF 270) and include assistance data for a reference cell and a plurality of neighboring cells supported by each base station.

[0229] Typically, the PRS timings from all cells in the network using the same frequency are aligned in time and may have a fixed known time offset (e.g., cell-specific subframe offset 552) relative to other cells in the network using different frequencies. In a SFN synchronous network, all wireless nodes (e.g., base stations 102) may be aligned on both frame boundaries and system frame numbers. Thus, in a SFN synchronous network, all cells supported by each wireless node may use the same PRS configuration index for any particular PRS transmission frequency. On the other hand, in a SFN asynchronous network, each wireless node may be aligned on frame boundaries but not on system frame numbers. Thus, in a SFN asynchronous network, the PRS configuration index for each cell may be individually configured by the network so that the PRS timings are aligned in time.

[0230] If the UE can obtain the cell timing (e.g., SFN) of at least one cell (e.g., a reference cell or a serving cell), the UE can determine the timing of the PRS opportunities of the reference cell and neighboring cells for OTDOA positioning. The UE can then derive the timing of other cells based on the assumption that, for example, PRS opportunities from different cells overlap.

[0231] A set of resource elements used to transmit PRS is called a "PRS resource". A set of resource elements can span multiple PRBs in the frequency domain, and "N" (e.g., 1 or more) consecutive symbols 460 within a time slot 430 in the time domain. In a given OFDM symbol 460, one PRS resource occupies consecutive PRBs. A PRS resource is described by at least the following parameters: a PRS resource identifier (ID), a sequence ID, a comb size N, a resource element offset in the frequency domain, a starting time slot and a starting symbol, the number of symbols per PRS resource (i.e., PRS resource duration), and QCL information (e.g., QCL with other DL reference signals). In some designs, one antenna port is supported. The comb size indicates the number of subcarriers in each symbol carrying PRS. For example, a comb size of comb-4 means that every four subcarriers of a given symbol carry PRS.

[0232] A "PRS resource set" is a group of PRS resources used to transmit a PRS signal, where each PRS resource has a PRS resource ID. In addition, the PRS resources in the 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 sent from a single TRP (wherein the TRP can send one or more beams). That is, each PRS resource in the PRS resource set can be sent on a different beam, so the "PRS resource" can also be referred to as a "beam". Note that this has no effect on whether the UE knows the TRP and the beam on which the PRS is sent. A "PRS opportunity" is an instance of a periodically repeating time window (e.g., a set of one or more consecutive time slots) in which the PRS is expected to be sent. A PRS opportunity may also be referred to as a "PRS positioning opportunity", "positioning opportunity" or simply "opportunity".

[0233] It should be noted that the terms "positioning reference signal" and "PRS" may sometimes refer to specific reference signals used for positioning in LTE and NR systems. However, as used herein, unless otherwise indicated, the terms "positioning reference signal" and "PRS" refer to any type of reference signal that can be used for positioning, such as but not limited to PRS signals in LTE or NR, navigation reference signals (NRS) in 5G, transmitter reference signals (TRS), cell-specific reference signals (CRS), channel state information reference signals (CSI-RS), primary synchronization signals (PSS), secondary synchronization signals (SSS), SSB, etc.

[0234] SRS is an uplink-only signal sent by the UE to help the base station obtain channel state information (CSI) for each user. Channel state information describes how the RF signal propagates from the UE to the base station and represents the combined effects of scattering, fading, and power attenuation with distance. The system uses SRS for resource scheduling, link adaptation, massive MIMO, beam management, etc.

[0235] Some improvements to the previous definition of SRS are proposed for SRS for positioning (SRS-P), such as a new staggered pattern within SRS resources, a new comb type for SRS, a new sequence for SRS, a larger number of SRS resource sets per component carrier, and a larger number of SRS resources per component carrier. In addition, the parameters "SpatialRelationInfo" and "PathLossReference" will be configured based on DL RS from neighboring TRPs. In addition, one SRS resource can be sent outside the active bandwidth part (BWP), and one SRS resource can span multiple component carriers. Finally, the UE can perform UL-AoA transmission with multiple SRS resources through the same transmit beam. All of these are additional features of the current SRS framework, which is configured through RRC high-level signaling (and may be triggered or enabled through MAC control element (CE) or downlink control information (DCI)).

[0236] As mentioned above, SRS in NR is a UE-specifically configured reference signal sent by the UE for sounding the uplink radio channel. Similar to CSI-RS, this sounding provides various levels of knowledge of the radio channel characteristics. At one extreme, SRS can be used at the gNB simply to obtain signal strength measurements, for example, for UL beam management purposes. At the other extreme, SRS can be used at the gNB to obtain detailed amplitude and phase estimates as a function of frequency, time, and space. In NR, channel sounding with SRS supports a more diverse set of use cases compared to LTE (e.g., downlink CSI acquisition for reciprocal gNB transmit beamforming (downlink MIMO); uplink CSI acquisition for link adaptation and codebook / non-codebook based precoding for uplink MIMO, uplink beam management, etc.).

[0237] SRS can be configured using various options. The time / frequency mapping of SRS resources is defined by the following characteristics.

[0238] Duration N symb SRS - The duration of the SRS resource can be 1, 2 or 4 consecutive OFDM symbols within a time slot, while LTE only allows one OFDM symbol per time slot.

[0239] Starting symbol position l 0 -The starting symbol of the SRS resource can be located anywhere within the last 6 OFDM symbols of a slot, provided that the resource does not cross the end of the slot boundary.

[0240] Repetition factor R - For SRS resources configured with frequency hopping, repetition allows the same set of subcarriers to be sent in R consecutive OFDM symbols before the next hop occurs (as used herein, "hopping" specifically refers to frequency hopping). For example, the value of R is 1, 2, 4, where R ≤ N symb SRS .

[0241] Transmission comb spacing K TC and comb offset k TC - SRS resources can occupy resource elements (REs) in a frequency domain comb structure, where the comb spacing is 2 or 4 REs, as in LTE. This structure allows frequency domain multiplexing of different SRS resources for the same or different users on different combs, where different combs are offset from each other by an integer number of REs. The comb offset is defined relative to the PRB boundary and can range from 0, 1, ..., K TC -1 RE. Therefore, for the comb spacing K TC = 2, if necessary, there are 2 different combs available for multiplexing, and for the comb spacing K TC =4, there are 4 different combs available.

[0242] • Periodicity and slot offset in case of periodic / semi-persistent SRS.

[0243] · The detection bandwidth within the bandwidth section.

[0244] For low latency positioning, the gNB may trigger UL SRS-P via DCI (e.g., the transmitted SRS-P may include repetitions or beam scanning to enable several gNBs to receive the SRS-P). Alternatively, the gNB may send information about aperiodic PRS transmissions to the UE (e.g., the configuration may include information about PRSs from multiple gNBs to enable the UE to perform timing calculations for positioning (UE-based) or for reporting (UE-assisted). Although various aspects of the present disclosure relate to DL PRS-based positioning procedures, some or all of these aspects may also be applied to UL SRS-P-based positioning procedures.

[0245] Note that the terms "sounding reference signal", "SRS" and "SRS-P" may sometimes refer to a specific reference signal used for positioning in an LTE or NR system. However, as used herein, unless otherwise indicated, the terms "sounding reference signal", "SRS" and "SRS-P" refer to any type of reference signal that can be used for positioning, such as but not limited to SRS signals in LTE or NR, navigation reference signals (NRS) in 5G, transmitter reference signals (TRS), random access channel (RACH) signals used for positioning (e.g., RACH preambles, such as Msg-1 in a 4-step RACH process or Msg-A in a 2-step RACH process), etc.

[0246] 3GPP Release 16 introduces various NR positioning aspects aimed at improving the position accuracy of positioning schemes involving measurements associated with one or more UL or DL ​​PRS (e.g., higher bandwidth (BW), FR2 beam scanning, angle-based measurements such as angle of arrival (AoA) and angle of departure (AoD) measurements, multi-cell round trip time (RTT) measurements, etc.). If latency reduction is a priority, UE-based positioning techniques are typically used (e.g., DL-only techniques without UL position measurement reports). However, if latency is less of a concern, UE-assisted positioning techniques may be used, whereby UE-measured data is reported to a network entity (e.g., location server 230, LMF 270, etc.). By implementing LMF in the RAN, UE-assisted positioning techniques associated with latency may be reduced to some extent.

[0247] Layer 3 (L3) signaling (e.g., RRC or Position Positioning Protocol (LPP)) is typically used to transmit reports that include location-based data associated with UE-assisted positioning techniques. L3 signaling is associated with relatively high latency (e.g., above 100ms) compared to Layer 1 (L1 or PHY layer) signaling or Layer 2 (L2 or MAC layer) signaling. In some cases, lower latency (e.g., less than 100ms, less than 10ms, etc.) between the UE and the RAN may be desired for location-based reporting. In such cases, L3 signaling may not be able to achieve these lower latency levels. L3 signaling for positioning measurements may include any combination of the following:

[0248] One or more TOA, TDOA, RSRP or Rx-Tx measurements,

[0249] One or more AoA / AoD (e.g. currently only gNB->LMF is allowed to report DL AoA and UL AoD) measurements,

[0250] One or more multipath reporting measurements, e.g., per-path ToA, RSRP, AoA / AoD (e.g., currently only per-path ToB in LTE is allowed)

[0251] One or more motion states (e.g., walking, driving, etc.) and trajectories (e.g., currently for a UE), and / or

[0252] One or more report quality indicators.

[0253] Recently, L1 and L2 signaling has been contemplated for use in association with PRS-based reporting. For example, L1 and L2 signaling is currently used in some systems to transmit CSI reports (e.g., reports of channel quality indication (CQI), precoding matrix indicator (PMI), layer indicator (Li), L1-RSRP, etc.). The CSI report may include a set of fields in a predefined order (e.g., defined by the relevant standard). A single UL transmission (e.g., on PUSCH or PUCCH) may include multiple reports, referred to herein as "sub-reports", arranged according to a predefined priority (e.g., defined by the relevant standard). In some designs, the predefined order may be based on the associated sub-report periodicity (e.g., aperiodic / semi-persistent / periodic (A / SP / P) on PUSCH / PUCCH), measurement type (e.g., whether it is L1-RSRP), serving cell index (e.g., carrier aggregation (CA) case), and reportconfigID. For 2-part CSI reporting, part 1 of all reports are grouped together, part 2 is grouped separately, and each group is encoded separately (e.g., the payload size of part 1 is fixed based on configuration parameters, while the size of part 2 is variable and depends on the configuration parameters and the related part 1 content). The number of coded bits / symbols to be output after coding and rate matching is calculated based on the number of input bits and the beta factor according to the relevant standard. A relationship (e.g., time offset) is defined between the measured RS instances and the corresponding reports. In some designs, CSI-like reporting based on PRS measurement data using L1 and L2 signaling can be implemented.

[0254] Figure 6 An exemplary wireless communication system 600 is shown in accordance with various aspects of the present disclosure. Figure 6 In the example, it can correspond to the article about Figure 1A UE 604 of any of the described UEs (e.g., UE 104, UE 182, UE 190, etc.) is attempting to compute an estimate of its location, or assist another entity (e.g., a base station or core network component, another UE, a location server, a third party application, etc.) in computing an estimate of its location. The UE 604 may communicate wirelessly with a plurality of base stations 602a-d (collectively, base stations 602) using RF signals and standardized protocols for RF signal modulation and information packet exchange, which may correspond to Figure 1 By extracting different types of information from the exchanged RF signals and utilizing the layout of the wireless communication system 600 (i.e., base station locations, geometry, etc.), the UE 604 can determine its position in a predefined reference coordinate system, or assist in determining its position. In one aspect, the UE 604 can use a two-dimensional coordinate system to specify its position; however, the aspects disclosed herein are not limited thereto and may also be adapted to use a three-dimensional coordinate system to determine positioning if additional dimensions are required. In addition, although Figure 6 One UE 604 and four base stations 602 are shown, but as will be understood, there may be more UEs 604 and more or fewer base stations 602.

[0255] To support positioning estimation, the base station 602 may be configured to broadcast reference RF signals (e.g., positioning reference signals (PRS), cell-specific reference signals (CRS), channel state information reference signals (CSI-RS), synchronization signals, etc.) to UEs 604 in its coverage area to enable the UEs 604 to measure reference RF signal timing differences (e.g., OTDOA or RSTD) between pairs of network nodes and / or identify beams that best excite the LOS or shortest radio path between the UE 604 and the transmitting base station 602. Identifying LOS / shortest path beams is of interest not only because these beams can then be used for OTDOA measurements between a pair of base stations 602, but also because identifying these beams can directly provide some positioning information based on the beam direction. In addition, these beams can then be used for other positioning estimation methods that require accurate ToA, such as methods based on round-trip time estimation.

[0256] As used herein, a "network node" may be a base station 602, a cell of a base station 602, a remote radio head, a base station 602 antenna (where the location of the base station 602 antenna is different from the location of the base station 602 itself), or any other network entity capable of sending a reference signal. In addition, as used herein, a "node" may refer to a network node or a UE.

[0257] A location server (e.g., location server 230) may send assistance data to UE 604, the assistance data including identification of one or more neighboring cells of base station 602 and configuration information of reference RF signals transmitted by each neighboring cell. Alternatively, the assistance data may originate directly from base station 602 itself (e.g., in a periodically broadcast overhead message, etc.). Alternatively, UE 604 may detect neighboring cells of base station 602 itself without using assistance data. UE 604 (e.g., based in part on the assistance data, if provided) may measure and (optionally) report OTDOA from various network nodes and / or RSTD between reference RF signals received from paired network nodes. Using these measurements and the known location of the measured network node (i.e., the base station 602 or antenna that sent the reference RF signal measured by UE 604), UE 604 or a location server may determine the distance between UE 604 and the measured network node, and thereby calculate the location of UE 604.

[0258] The term "position estimate" is used herein to refer to an estimate of the location of a UE 604, which may be geographic (e.g., may include latitude, longitude, and possibly altitude) or urban (e.g., may include a street address, a building name, or a precise point or area within or near a building or street address, such as a specific entrance to a building, a specific room or suite in a building, or a landmark such as a city square). A position estimate may also be referred to as a "position," "fix," "position fix," "position fix," "position fix," position estimate, "fixed estimate," or other terms. The means of obtaining a position estimate are often referred to as "positioning," "position determination," or "position fix." A specific solution for obtaining a position estimate may be referred to as a "positioning solution." A specific method for obtaining a position estimate as part of a positioning solution may be referred to as a "positioning method" or "positioning method."

[0259] The term "base station" may refer to a single physical transmission point or to multiple physical transmission points that may or may not be co-located. For example, where the term "base station" refers to a single physical transmission point, the physical transmission point may be an antenna of a base station (e.g., base station 602) corresponding to a cell of the base station. Where the term "base station" refers to multiple co-located physical transmission points, the physical transmission point may be an array of antennas of the base station (e.g., as in a MIMO system, or where the base station employs beamforming). Where the term "base station" refers to multiple non-co-located physical transmission points, the physical transmission point may 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, the non-co-located physical transmission points may be a serving base station that is receiving measurement reports from a UE (e.g., UE 604) and a neighboring base station whose reference RF signal is being measured by the UE. Thus, Figure 6 An aspect is shown in which base stations 602a and 602b form a DAS / RRH 620. For example, base station 602a can be a serving base station for UE 604, while base station 602b can be a neighboring base station for UE 604. Thus, base station 602b can be an RRH for base station 602a. Base stations 602a and 602b can communicate with each other via a wired or wireless link 622.

[0260] In order to accurately determine the positioning of UE 604 using OTDOA and / or RSTD between RF signals received from paired network nodes, UE 604 needs to measure a reference RF signal received on a LOS path (or the shortest NLOS path if the LOS path is not available) between UE 604 and a network node (e.g., base station 602, antenna). However, RF signals propagate not only through the LOS / shortest path between the transmitter and the receiver, but also through many other paths as the RF signal propagates from the transmitter and is reflected by other objects such as mountains, buildings, water, etc. on the way to the receiver. Therefore, Figure 6 Multiple LOS paths 610 and multiple NLOS paths 612 between base station 602 and UE 604 are shown. Specifically, Figure 6 Base station 602a is shown transmitting on LOS path 610a and NLOS path 612a, base station 602b is shown transmitting on LOS path 610b and two NLOS paths 612b, base station 602c is shown transmitting on LOS path 610c and NLOS path 612c, and base station 602d is shown transmitting on two NLOS paths 612d. Figure 6As shown, each NLOS path 612 is reflected by some object 630 (e.g., a building). As will be appreciated, each LOS path 610 and NLOS path 612 transmitted by the base station 602 may be transmitted by a different antenna of the base station 602 (e.g., as in a MIMO system), or may be transmitted by the same antenna of the base station 602 (thereby illustrating the propagation of the RF signal). In addition, as used herein, the term "LOS path" refers to the shortest path between a transmitter and a receiver, which may not be the actual LOS path, but rather the shortest NLOS path.

[0261] In one aspect, one or more of the base stations 602 may be configured to transmit RF signals using beamforming. In this case, some available beams may focus transmitted RF signals along the LOS path 610 (e.g., these beams produce the highest antenna gain along the LOS path), while other available beams may focus transmitted RF signals along the NLOS path 612. A beam that has high gain along a certain path and therefore focuses the RF signal along that path may still have some RF signal propagating along other paths; the strength of the RF signal naturally depends on the beam gain along those other paths. "RF signals" include electromagnetic waves that transmit information through the space between a transmitter and a receiver. As used herein, a transmitter may send a single "RF signal" or multiple "RF signals" to a receiver. However, as further described below, due to the propagation characteristics of RF signals through multipath channels, a receiver may receive multiple RF signals corresponding to each transmitted RF signal.

[0262] In the case where the base station 602 uses beamforming to transmit RF signals, the beam of interest for data communication between the base station 602 and the UE 604 will be the beam carrying the RF signal that reaches the UE 604 with the highest signal strength (as indicated by the received signal received power (RSRP) or SINR in the presence of a directional interfering signal), while the beam of interest for positioning estimation will be the beam carrying the RF signal that excites the shortest path or LOS path (e.g., LOS path 610). In some frequency bands and for commonly used antenna systems, these beams will be the same beam. However, in other frequency bands, such as mmW, where a large number of antenna elements can often be used to create narrow transmit beams, they may not be the same beam. As described below with reference to Figure 7 As described, in some cases, the signal strength of the RF signal on the LOS path 610 may be weaker (eg, due to obstacles) than the signal strength of the RF signal on the NLOS path 612 where the RF signal arrives later due to propagation delays.

[0263] Figure 7An exemplary wireless communication system 700 is shown in accordance with various aspects of the present disclosure. Figure 7 In the example, you can Figure 6 UE 704 of UE 604 in FIG. 6 is attempting to calculate an estimate of its location, or assisting another entity (e.g., a base station or core network component, another UE, a location server, a third party application, etc.) to calculate an estimate of its location. UE 704 can communicate wirelessly with base station 702 using RF signals and standardized protocols for modulation of the RF signals and exchange of information packets, which can correspond to Figure 6 One of the base stations 602 in.

[0264] like Figure 7 As shown, base station 702 utilizes beamforming to transmit multiple beams 711-715 of RF signals. Each beam 711-715 may be formed and transmitted by an antenna array of base station 702. Figure 7 Base station 702 is shown transmitting five beams 711-715, but it is understood that there may be more or less than five beams, beam shapes such as peak gain, width, and sidelobe gain may differ between the transmitted beams, and some beams may be transmitted by different base stations.

[0265] In order to distinguish an RF signal associated with one beam from an RF signal associated with another beam, a beam index may be assigned to each of the plurality of beams 711-715. In addition, an RF signal associated with a particular beam in the plurality of beams 711-715 may carry a beam index indicator. The beam index may also be derived from the transmission time (e.g., frame, time slot, and / or OFDM symbol number) of the RF signal. The beam index indicator may be, for example, a three-bit field for uniquely distinguishing up to eight beams. If two different RF signals with different beam indices are received, this would indicate that the RF signals are sent using different beams. If two different RF signals share a common beam index, this would indicate that different RFs are sent using the same beam. Another way to describe sending two RF signals using the same beam is that the antenna port used to send the first RF signal is spatially quasi-co-located with one or more antenna ports used to send the second RF signal.

[0266] exist Figure 7 In the example of FIG. 7 , UE 704 receives NLOS data stream 723 of the RF signal transmitted on beam 713 and LOS data stream 724 of the RF signal transmitted on beam 714. Figure 7NLOS data stream 723 and LOS data stream 724 are shown as single lines (dashed and solid, respectively), but it is understood that due to, for example, the propagation characteristics of RF signals through multipath channels, NLOS data stream 723 and LOS data stream 724 may each include multiple rays (i.e., "clusters") when arriving at UE 704. For example, when electromagnetic waves reflect from multiple surfaces of an object, and the reflections arrive at a receiver (e.g., UE 704) from approximately the same angle (each reflection propagating a few wavelengths (e.g., centimeters) more or less than the other reflections), RF signal clusters are formed. A "cluster" of received RF signals generally corresponds to a single transmitted RF signal.

[0267] exist Figure 7 In the example of FIG. 7 , the NLOS data stream 723 is not initially directed to the UE 704, although as will be appreciated, it may be directed to the UE, such as Figure 6 723. However, it is reflected by reflector 740 (e.g., a building) and reaches UE 704 without obstacles, so it may still be a relatively strong RF signal. In contrast, LOS data stream 724 is directed toward UE 704, but passes through obstacle 730 (e.g., vegetation, buildings, hills, disruptive environment such as clouds or smoke, etc.), which may significantly degrade the RF signal. As will be appreciated, although LOS data stream 724 is weaker than NLOS data stream 723, LOS data stream 724 will reach UE 704 before NLOS data stream 723 because it follows a shorter path from base station 702 to UE 704.

[0268] As described above, the beam of interest for data communication between a base station (e.g., base station 702) and a UE (e.g., UE 704) is a beam that carries an RF signal that reaches the UE with the highest signal strength (e.g., the highest RSRP or SINR), while the beam of interest for positioning estimation is a beam that carries an RF signal that excites the LOS path and has the highest gain along the LOS path among all other beams (e.g., beam 714). That is, even if beam 713 (NLOS beam) excites the LOS path weakly (even if not focused along the LOS path due to the propagation characteristics of the RF signal), the weak signal (if any) of the LOS path of beam 713 may not be reliably detected (compared to the signal from beam 714), resulting in a larger error when performing positioning measurements.

[0269] Although the beam of interest for data communication and the beam of interest for positioning estimation may be the same beam for some frequency bands, they may not be the same beam for other frequency bands, such as mmW. Figure 7, where UE 704 is engaged in a data communication session with base station 702 (e.g., where base station 702 is a serving base station for UE 704), rather than simply attempting to measure a reference RF signal transmitted by base station 702, the beam of interest for the data communication session may be beam 713 because it carries an unobstructed NLOS data stream 723. However, the beam of interest for positioning estimation would be beam 714 because it carries the strongest LOS data stream 724 despite being obstructed.

[0270] Fig. 8A 8 is a graph 800A showing RF channel response at a receiver (e.g., UE 704) over time in accordance with aspects of the present disclosure. Fig. 8A In the channel shown, the receiver receives a first cluster of two RF signals on the channel taps at time T1, a second cluster of five RF signals on the channel taps at time T2, a third cluster of five RF signals on the channel taps at time T3, and a fourth cluster of four RF signals on the channel taps at time T4. Fig. 8A In the example of , because the first cluster of RF signals at time T1 arrives first, it is assumed to be a LOS data stream (i.e., a data stream that arrives via LOS or the shortest path) and may correspond to LOS data stream 724. The third cluster at time T3 consists of the strongest RF signal and may correspond to NLOS data stream 723. From the transmitter side, each cluster of received RF signals may include RF signal portions transmitted at different angles, so each cluster may be said to have a different angle of departure (AoD) from the transmitter. Figure 8B FIG. 800B is a diagram illustrating this separation of clusters in the AoD. The RF signal transmitted in the AoD range 802a may correspond to Fig. 8A The RF signal transmitted in the AoD range 802b may correspond to a cluster (e.g., “cluster 1”) in the AoD range 802b. Fig. 8A different clusters (e.g., “Cluster 3”). Note that although Figure 8B The AoD ranges of the two clusters depicted in are spatially isolated, but even if the clusters are separated in time, the AoD ranges of some clusters may partially overlap. This may occur, for example, when two separate buildings at the same AoD as the transmitter reflect the signal to the receiver. Note that although Fig. 8A Clusters of two to five channel taps (or "peaks") are shown, but it will be understood that clusters may have more or less than the number of channel taps shown.

[0271] RAN1 NR may define UE measurements on DL reference signals applicable to NR positioning (e.g., for serving cell, reference cell and / or neighbor cells), including DL reference signal time difference (RSTD) measurement for NR positioning, DL-RSRP measurement for NR positioning, and UE Rx Tx (e.g., hardware group delay from signal reception at the UE receiver to response signal transmission at the UE transmitter, e.g., time difference measurements such as RTT for NR positioning).

[0272] RAN1 NR may define gNB measurements based on UL reference signals suitable for NR positioning, such as relative UL time of arrival (RTOA) for NR positioning, UL AoA measurements for NR positioning (e.g., including azimuth and zenith angle), UL RSRP measurements for NR positioning, and gNB Rx Tx (e.g., hardware group delay from signal reception at the gNB receiver to response signal transmission at the gNB transmitter, e.g., time difference measurements such as RTT for NR positioning).

[0273] Various positioning measurements (or measurement combinations) involve the communication of multiple reference signals for positioning in a relatively narrow time window. Examples of such positioning measurements include multi-RTT, differential RTT, single RTT plus DL AoD, single RTT plus UL AOA, etc. It is also possible that two unrelated reference signals for positioning are scheduled together in such a narrow time window.

[0274] The bandwidth part (BWP) configuration for data traffic (e.g., 20 MHz) is typically narrower (and consumes less power) than the BWP configuration for communication of positioning reference signals (e.g., 100 MHz) (such as PRS and SRS). In general, if the active BWP for data traffic is narrower than the bandwidth required to transmit DL PRS or UL SRS-P, the gNB may separately configure additional bandwidth for transmission of DL PRS and UL SRS-P, such as Fig. 9 shown.

[0275] Fig. 9 A bandwidth part (BWP) reconfiguration scheme 900 is shown according to one aspect of the present disclosure.

[0276] refer to Fig. 9At 902, the UE is configured with an active BWP (e.g., 20 MHz) for communication of DL and / or UL data traffic. At 904, the UE re-tunes to the BWP for positioning (e.g., 100 MHz) in order to measure the DL PRS at 906 (e.g., which may include multiple synchronized PRS transmission instances from multiple cells). The PRS measurement at 906 is implemented during a measurement gap (e.g., in 3GPP Release 16, DL PRS must be received in a measurement gap, although in 3GPP Release 17, if the bandwidth of the active BWP is the same as the bandwidth of the PRS, a so-called "gap-free" measurement can be performed). After measuring the DL PRS, at 908, the UE re-tunes to the active BWP (e.g., 20 MHz).

[0277] At 910, the UE is also configured with an active BWP (e.g., 20 MHz) for communication of DL and / or UL data traffic. At 912, the UE performs a BWP switch to a BWP for positioning (e.g., 100 MHz) in order to send a UL SRS-P at 914 (e.g., which can be measured at multiple cells). After sending the UL SRS-P, at 916, the UE performs another BWP switch back to the active BWP (e.g., 20 MHz). At 918, the UE is also configured with an active BWP (e.g., 20 MHz) for communication of DL and / or UL data traffic.

[0278] refer to Fig. 9 , during a measurement gap, the UE may need to re-tune but the active RRC configuration is not modified. For a BWP handover, the UE may need to re-tune but also modify the active RRC configuration. The processing performed for a BWP handover is a superset of the processing performed to start a measurement gap mode. Fig. 9 As shown in 904, 908, 912 and 916, BWP switching takes more time than retuning.

[0279] The UE does not always simply stay in the positioning BWP (e.g., 100 MHz), as this would significantly increase power consumption at the UE (e.g., this is why the UE only briefly transitions to the positioning BWP in bursts). Fig. 9The retuning and BWP switching shown in consumes considerable time, which is inefficient, particularly when the DL PRS and UL SRS-P are close in time (e.g., as is common for certain measurement procedures as described above). Accordingly, one or more aspects of the present disclosure relate to BWP configuration for communication of multiple reference signals for positioning. These aspects may provide various technical advantages, including less retuning time, which improves efficiency. In some designs, such aspects may be particularly advantageous when applied with respect to reference signals for positioning that are close in time (e.g., PRS followed by SRS-P), so that the increase in efficiency will not result in a significant increase in power consumption at the UE.

[0280] Fig.10 An exemplary process 1000 for wireless communication in accordance with aspects of the present disclosure is shown. In one aspect, process 1000 may be performed by any of the UEs described above, such as UE 302.

[0281] At 1010, UE 302 (eg, WWAN transceiver 310, WLAN transceiver 320, etc.) communicates (eg, receives and / or sends) data traffic with a base station (eg, BS 304) according to a first BWP configuration (eg, 20 MHz).

[0282] At 1020, the UE 302 (e.g., receiver 312, receiver 322, etc.) receives an indication of a second BWP configuration (e.g., 100 MHz) including a bandwidth different from the first BWP configuration in association with communication of a plurality of reference signals for positioning from a base station. In some designs, the second BWP configuration includes a bandwidth (e.g., 100 MHz) that is larger (or wider) than the bandwidth (e.g., 20 MHz) associated with the first BWP configuration. However, in other designs, the second BWP configuration includes a bandwidth that is smaller (or narrower) than the bandwidth (e.g., 20 MHz) associated with the first BWP configuration. As will be described in more detail below, in some designs, the indication is an explicit indication of the second BWP configuration, while in other designs, the indication is an implicit indication from which the UE 302 infers the second BWP configuration.

[0283] At 1030, the UE 302 (e.g., the WWAN transceiver 310, the WLAN transceiver 320, etc.) transmits at least a plurality of reference signals for positioning according to the second BWP configuration for a duration of the communication of the plurality of reference signals for positioning. In some designs, the communication at 1030 may include intervening data traffic between two reference signals for positioning according to the first BWP configuration or the second BWP configuration. In one example, the communication at 1030 may begin after the UE 302 performs a BWP switch from the first BWP configuration to the second BWP configuration.

[0284] Fig.11 An exemplary process 1100 for wireless communication in accordance with aspects of the present disclosure is shown. In one aspect, process 1100 may be performed by any of the BSs described above, such as BS 304.

[0285] At 1110, the BS 304 (eg, WWAN transceiver 350, WLAN transceiver 360, etc.) communicates (eg, receives and / or sends) data traffic with a UE (eg, UE 302) according to a first BWP configuration (eg, 20 MHz).

[0286] At 1120, the BS 304 (e.g., transmitter 354, transmitter 364, etc.) sends an indication of a second BWP configuration (e.g., 100 MHz) including a bandwidth different from the first BWP configuration to the UE in association with communication of a plurality of reference signals for positioning. In some designs, the second BWP configuration includes a bandwidth (e.g., 100 MHz) that is larger (or wider) than the bandwidth (e.g., 20 MHz) associated with the first BWP configuration. However, in other designs, the second BWP configuration includes a bandwidth that is smaller (or narrower) than the bandwidth (e.g., 20 MHz) associated with the first BWP configuration. As will be described in more detail below, in some designs, the indication is an explicit indication of the second BWP configuration, while in other designs, the indication is an implicit indication from which the UE 302 infers the second BWP configuration.

[0287] At 1130, BS 304 (e.g., WWAN transceiver 350, WLAN transceiver 360, etc.) transmits at least a plurality of reference signals for positioning according to the second BWP configuration for the duration of the communication of the plurality of reference signals for positioning. In some designs, the communication at 1130 may include inserting data traffic between two reference signals for positioning according to the first BWP configuration or the second BWP configuration.

[0288] refer to Figure 10 to Figure 11In some designs, the multiple reference signals include a PRS and an SRS-P. For example, the multiple reference signals may include a PRS followed by an SRS-P (eg, for RTT measurement, etc.).

[0289] refer to Figure 10 to Figure 11 In some designs, the indication may include a displayed indication of the second BWP configuration. For example, the UE may store multiple different BWP configurations in memory, and the explicit indication may include an index (or reference) to one of the BWP configurations stored as the second BWP configuration during the positioning session. In some designs, the UE may perform a positioning session across multiple positioning frequency layers. In this case, the transition to the second BWP configuration may be implemented for all or less than all positioning frequency layers.

[0290] refer to Figure 10 to Figure 11 , in some designs, the indication may include an implicit indication of the second BWP configuration (e.g., UE-derived or automatic BWP switching). For example, the gNB may enable implicit indication of BWP transitions as an advanced feature, after which the UE may derive other parameters from the PRS configuration, the SRS configuration, or a combination thereof. In this case, the gNB's indication of the PRS / SRS configuration is an implicit indication that triggers the transition to the second BWP configuration. As an example, the UE may derive the bandwidth of the second BWP configuration as the maximum bandwidth between the active BWP (e.g., 20 MHz) and the positioning BWP (e.g., 100 MHz). In some designs, if PRS / SRS hopping is implemented, the total bandwidth of the second BWP configuration may correspond to the combined bandwidth across the hops (e.g., the bandwidth of each hop plus any intermediate bandwidths). In some designs, the duration of the second BWP configuration may be determined at the UE as the time from the first Tx Rx instance (e.g., PRS) to the last Tx Rx instance (e.g., SRS-P) plus some margin (e.g., which may be preconfigured).

[0291] refer to Figure 10 to Figure 11 In some designs, the indication is received via lower layer (e.g., L1 or L2) signaling (such as medium access control (MAC) control element (CE), downlink control information (DCI) communication, or L1 / L2 RRC signaling). In some designs, the gNB or LMF may first enable the RRC configuration Figure 10 to Figure 11 The enhanced BWP switching feature is then used to trigger a specific BWP switching instance using the L1 / L2 indication as described above.

[0292] refer to Figure 10 to Figure 11In some designs, at 1030, the UE may perform measurements on at least one of the plurality of reference signals used for positioning (e.g., DL PRS) without measurement gaps. In other designs at 1030, the UE performs measurements on the DL PRS while stopping processing of one or more downlink channels during the measurement of the PRS. In other words, if gapless measurement is not allowed or is not practical for a particular scenario, the UE simulates a measurement gap configuration.

[0293] refer to Figure 10 to Figure 11 In some designs, the UE and the BS may also transmit data services separated from the multiple reference signals used for positioning to the base station between two reference signals in the multiple reference signals used for positioning according to the first BWP configuration or the second BWP configuration, which will be described below with respect to Figure 12 to Figure 13 Discussed in more detail. For example, the data traffic may be associated with another physical channel (e.g., PDCCH CORESET), and may include transmissions of PDSCH, TRS, phase tracking reference signal (PTRS), CSI-RS, UL channel configuration, etc. In some designs, the data traffic may be associated with a specific direction (e.g., only UL data traffic, or only DL data traffic). In examples where the data traffic includes DL data traffic, the DL data traffic may be time division multiplexed (TDMed) with at least one of the two reference signals used for positioning (e.g., DL PRS) for DL ​​reference signal used for positioning. In conventional systems, it is not possible to time division multiplex the DL PRS with the data traffic because the DL PRS is transmitted during measurement gaps where other data traffic is not allowed (e.g., even if the PRS does not occupy all symbols during the measurement gap, any unused symbols cannot be reused for data traffic in such conventional systems).

[0294] refer to Figure 10 to Figure 11 In some designs as described above, multiple reference signals for positioning may be transmitted across multiple positioning frequency layers. In this case, the second BWP configuration may include one or more parameters that match a specific one of the multiple positioning frequency layers.

[0295] refer to Figure 10 to Figure 11 In some designs, multiple reference signals used for positioning are associated with RTT measurement, multi-RTT measurement, single RTT measurement, differential RTT measurement, downlink AoD measurement, uplink AoA measurement, or a combination thereof (e.g., single RTT plus DL AoD, single RTT plus UL AoA, etc.).

[0296] refer to Figure 10 to Figure 11In some designs, although not explicitly shown, the UE may resume communication of data services with the base station according to the first BWP configuration (eg, via BWP switching from 100 MHz back to 20 MHz) after transmitting multiple reference signals at 1030-1130.

[0297] Fig.12 They are shown according to Figure 10 to Figure 11 A BWP reconfiguration scheme 1200 is an exemplary implementation of the processes 1000 - 1100 .

[0298] refer to Fig.12 At 1202, the UE is configured with an active BWP (eg, 20 MHz) for communication of DL and / or UL data traffic. Fig. 9 As shown, only retuning is performed, and at 1204, the UE performs a BWP switch to the BWP used for positioning (e.g., 100 MHz) in order to measure the DL PRS at 1206 (e.g., which may include multiple synchronized PRS transmission instances from multiple cells). At 1208, instead of performing another BWP switch back to the active BWP (e.g., 20 MHz), the UE instead transmits data traffic (e.g., DL and / or UL data traffic) over the BWP used for positioning (e.g., 100 MHz). At 1210, the UE sends a UL SRS-P (e.g., which may be measured at multiple cells). After sending the UL SRS-P, at 1212, the UE performs another BWP switch back to the active BWP (e.g., 20 MHz). At 1214, the UE is also configured with an active BWP (e.g., 20 MHz) for communication of DL and / or UL data traffic. Fig.12 In this aspect, the retuning delay at 904 and 908 is eliminated, resulting in improved communication efficiency while also limiting the impact on power consumption at the UE because the duration of 1208 (or the time interval between DL PRS 1206 and UL SRS-P 1210) is kept small (e.g., below a time threshold).

[0299] Fig.13 They are shown according to Figure 10 to Figure 11 Another exemplary implementation of the processes 1000 - 1100 is a BWP reconfiguration scheme 1300 .

[0300] refer to Fig.13 At 1302, the UE is configured with an active BWP (eg, 20 MHz) for communication of DL and / or UL data traffic. Fig. 9Only retuning is shown to be performed, and at 1304, the UE performs a BWP switch to the BWP used for positioning (e.g., 100 MHz) in order to measure DL PRS (e.g., which may include multiple synchronized PRS transmission instances from multiple cells) at 1306. At 1308, instead of performing another BWP switch back to the active BWP (e.g., 20 MHz), the UE instead transmits data traffic (e.g., DL and / or UL data traffic) over a portion 1308 (e.g., 20 MHz) of the BWP used for positioning (e.g., 100 MHz), while the other BWP portions 1310-1312 remain unused. Fig.13 , portion 1308 corresponds to the same bandwidth as the active BWP 1302, although this is not explicitly required (e.g., any subset of the BWP used for positioning could theoretically be used for "intervening" data traffic at 1308). At 1314, the UE sends an UL SRS-P (e.g., which may be measured at multiple cells). After sending the UL SRS-P, at 1316, the UE performs another BWP switch back to the active BWP (e.g., 20 MHz). At 1318, the UE is also configured with an active BWP (e.g., 20 MHz) for communication of DL and / or UL data traffic. Fig.13 In this aspect, the retuning delay at 904 and 908 is eliminated, resulting in improved communication efficiency while also limiting the impact on power consumption at the UE because the duration of 1310 (or the time interval between the DL PRS 1306 and the UL SRS-P 1314) is kept small (e.g., below a time threshold).

[0301] refer to Figure 10 to Figure 11 In some designs, communication according to the first BWP configuration and communication according to the second BWP configuration occur when the UE is in an RRC inactive state. In other designs, communication according to the first BWP configuration and communication according to the second BWP configuration occur when the UE is in an RRC connected state. In some designs, the first BWP configuration and the second BWP configuration may be received at the corresponding UE when in an RRC connected state, and then triggered or activated (e.g., via DCI, MAC-CE, etc.) when the UE is in an RRC inactive state. In some designs, the first BWP configuration may be a default BWP configuration, and the second BWP configuration may be converted to have a wider bandwidth to support broadband positioning (e.g., 100 MHz). Therefore, the first BWP configuration may be associated with a narrower bandwidth (e.g., 20 MHz, etc.) than the second BWP configuration (e.g., 100 MHz, etc.).

[0302] It can be seen in the above detailed description that different features are combined together in the examples. This disclosure should not be understood as an intention that the example clauses have more features than those explicitly mentioned in each clause. On the contrary, various aspects of the present disclosure may include less than all the features of the disclosed individual example clauses. Therefore, the following clauses should be deemed to be included in the specification, where each clause itself can be used as a separate example. Although each dependent clause can be referenced in a clause to a specific combination with one of the other clauses, the aspects of the dependent clause are not limited to the specific combination. It should be understood that other example clauses may also include combinations of various aspects of the dependent clauses with the subject matter of any other dependent clause or independent clause, or any combination of features with other dependent and independent clauses. Various aspects disclosed herein explicitly include these combinations, unless it is clearly expressed or can be easily inferred that a specific combination is not intended (for example, contradictory aspects, such as defining an element as both an insulator and a conductor at the same time). In addition, even if the clause is not directly dependent on the independent clause, various aspects of the clause may be included in any other independent clause.

[0303] Specific implementation examples are described in the following numbered clauses:

[0304] Clause 1. A method of operating a user equipment (UE), comprising: transmitting data services with a base station according to a first bandwidth part (BWP) configuration; receiving from the base station an indication of a second BWP configuration including a bandwidth different from the first BWP configuration in association with communication of multiple reference signals for positioning; and transmitting at least multiple reference signals for positioning according to the second BWP configuration for the duration of the communication of the multiple reference signals for positioning.

[0305] Clause 2. The method of clause 1, wherein the plurality of reference signals comprises a positioning reference signal (PRS) and a sounding reference signal for positioning (SRS-P).

[0306] Clause 3. A method as described in any of clauses 1 to 2, wherein the indication comprises an explicit indication of the second BWP configuration.

[0307] Clause 4. A method according to any of clauses 1 to 3, wherein the indication is received via radio resource control (RRC) signaling, medium access control (MAC) control element (CE), or downlink control information (DCI) communication.

[0308] Clause 5. A method as described in any of clauses 1 to 4, wherein the indication comprises an implicit indication of the second BWP configuration.

[0309] Clause 6. The method of clause 5, wherein the implicit indication is based on a positioning reference signal (PRS) configuration, a sounding reference signal for positioning (SRS-P) configuration, or a combination thereof.

[0310] Clause 7. The method of clause 6, wherein the implicit indication is based on configuring one or more time slots of the PRS and / or SRS-P or both.

[0311] Clause 8. The method of any of clauses 1 to 7, further comprising: performing measurements on at least one of the plurality of reference signals used for positioning without a measurement gap.

[0312] Clause 9. A method according to any of clauses 1 to 8, wherein transmitting according to the second BWP configuration comprises performing measurements on a positioning reference signal (PRS), and wherein the UE stops processing of one or more downlink channels during the measurement of the PRS.

[0313] Clause 10. The method according to any one of clauses 1 to 9 further comprises: transmitting data traffic separated from the multiple reference signals used for positioning to the base station between two reference signals among the multiple reference signals used for positioning according to the first BWP configuration or the second BWP configuration.

[0314] Clause 11. The method of clause 10, wherein the data traffic comprises downlink data traffic, and wherein the downlink data traffic is time division multiplexed (TDMed) with at least one downlink reference signal for positioning of a plurality of reference signals for positioning.

[0315] Clause 12. The method of any of clauses 1 to 11, wherein the plurality of reference signals used for positioning are transmitted across a plurality of positioning frequency layers, and wherein the second BWP configuration comprises one or more parameters that match a particular one of the plurality of positioning frequency layers.

[0316] Clause 13. A method according to any one of clauses 1 to 12, wherein the multiple reference signals used for positioning are associated with round-trip time (RTT) measurement, multi-RTT measurement, single RTT measurement, differential RTT measurement, downlink angle of departure (AoD) measurement, uplink angle of arrival (AoA) measurement, or a combination thereof.

[0317] Clause 14. The method of any of clauses 1 to 13, further comprising: after the communication of the plurality of reference signals, resuming communication of data traffic with the base station according to the first BWP configuration.

[0318] Clause 15. The method of any of clauses 1 to 14, wherein a bandwidth associated with the second BWP configuration is greater than a bandwidth associated with the first BWP configuration.

[0319] Clause 16. A method as described in any of clauses 1 to 15, wherein the communicating according to the first BWP configuration and the communicating according to the second BWP configuration occur when the UE is in a radio resource control (RRC) inactive state.

[0320] Clause 17. A method as described in any of clauses 1 to 16, wherein the communication according to the first BWP configuration and the communication according to the second BWP configuration occur when the UE is in a radio resource control (RRC) connected state.

[0321] Clause 18. The method of any of clauses 1 to 17, wherein the first BWP configuration is associated with a narrower bandwidth than the second BWP configuration.

[0322] Clause 19. A method of operating a base station comprises: transmitting a data service with a user equipment (UE) according to a first bandwidth part (BWP) configuration; sending an indication of a second BWP configuration including a bandwidth different from the first BWP configuration to the UE in association with communication of multiple reference signals for positioning; and transmitting at least multiple reference signals for positioning according to the second BWP configuration during the duration of the communication of the multiple reference signals for positioning.

[0323] Clause 20. The method of clause 19, wherein the plurality of reference signals comprises a positioning reference signal (PRS) and a sounding reference signal for positioning (SRS-P).

[0324] Clause 21. The method of any of clauses 19 to 20, wherein the indication comprises an explicit indication of the second BWP configuration.

[0325] Clause 22. The method of clause 21, wherein the display indication is received via radio resource control (RRC) signaling, a medium access control (MAC) control element (CE), or a downlink control information (DCI) communication.

[0326] Clause 23. The method of any of clauses 19 to 22, wherein the indication comprises an implicit indication of the second BWP configuration.

[0327] Clause 24. The method of clause 23, wherein the implicit indication is based on a positioning reference signal (PRS) configuration, a sounding reference signal for positioning (SRS-P) configuration, or a combination thereof.

[0328] Clause 25. The method of clause 24, wherein the implicit indication is based on configuring one or more time slots of the PRS and / or SRS-P or both.

[0329] Clause 26. The method according to any one of clauses 19 to 25, further comprising: transmitting data traffic separated from the multiple reference signals used for positioning to the UE between two reference signals in the multiple reference signals used for positioning according to the first BWP configuration or the second BWP configuration.

[0330] Clause 27. The method of clause 26, wherein the data traffic comprises downlink data traffic, and wherein the downlink data traffic is time division multiplexed (TDMed) with at least one downlink reference signal for positioning of the plurality of reference signals for positioning.

[0331] Clause 28. The method of any of clauses 19 to 27, wherein the plurality of reference signals used for positioning are transmitted across a plurality of positioning frequency layers, and wherein the second BWP configuration comprises one or more parameters matched to a particular one of the plurality of positioning frequency layers.

[0332] Clause 29. A method according to any one of clauses 19 to 28, wherein the multiple reference signals used for positioning are associated with round-trip time (RTT) measurement, multi-RTT measurement, single RTT measurement, differential RTT measurement, downlink angle of departure (AoD) measurement, uplink angle of arrival (AoA) measurement, or a combination thereof.

[0333] Clause 30. A method as described in any of clauses 19 to 29, further comprising: after the communication of the plurality of reference signals, resuming communication of data traffic with the UE in accordance with the first BWP configuration.

[0334] Clause 31. The method of any of clauses 19 to 30, wherein a bandwidth associated with the second BWP configuration is greater than a bandwidth associated with the first BWP configuration.

[0335] Clause 32. A method as set forth in any of clauses 19 to 31, wherein communicating according to the first BWP configuration and communicating according to the second BWP configuration occur when the UE is in a radio resource control (RRC) inactive state.

[0336] Clause 33. A method as set forth in any of clauses 19 to 32, wherein the communicating according to the first BWP configuration and the communicating according to the second BWP configuration occur while the UE is in a Radio Resource Control (RRC) connected state.

[0337] Clause 34. The method of any of clauses 19 to 33, wherein the first BWP configuration is associated with a narrower bandwidth than the second BWP configuration.

[0338] Clause 35. A user equipment (UE) comprising: a memory; at least one transceiver; and at least one processor, the at least one processor being communicatively coupled to the memory and the at least one transceiver, the at least one processor being configured to: transmit data services with a base station via the at least one transceiver according to a first bandwidth part (BWP) configuration; receive, via the at least one transceiver, from the base station an indication of a second BWP configuration including a bandwidth different from the first BWP configuration in association with communication of multiple reference signals for positioning; and transmit, via the at least one transceiver, multiple reference signals for positioning according to the second BWP configuration for the duration of the communication of the multiple reference signals for positioning.

[0339] Clause 36. The UE of clause 35, wherein the plurality of reference signals comprises a positioning reference signal (PRS) and a sounding reference signal for positioning (SRS-P).

[0340] Clause 37. A UE as set forth in any of clauses 35 to 36, wherein the indication comprises an explicit indication of the second BWP configuration.

[0341] Clause 38. A UE as described in any of clauses 35 to 37, wherein the indication is received via radio resource control (RRC) signaling, medium access control (MAC) control element (CE) or downlink control information (DCI) communication.

[0342] Clause 39. A UE as set forth in any of clauses 35 to 38, wherein the indication comprises an implicit indication of the second BWP configuration.

[0343] Clause 40. The UE of clause 39, wherein the implicit indication is based on a positioning reference signal (PRS) configuration, a sounding reference signal for positioning (SRS-P) configuration, or a combination thereof.

[0344] Clause 41. A UE as described in clause 40, wherein the implicit indication is based on configuring one or more time slots of PRS and / or SRS-P or both.

[0345] Clause 42. The UE of any of clauses 35 to 41, wherein the at least one processor is further configured to: perform measurements on at least one of the plurality of reference signals used for positioning without a measurement gap.

[0346] Clause 43. A UE according to any of clauses 35 to 42, wherein transmitting according to the second BWP configuration comprises performing measurements on a positioning reference signal (PRS), and wherein the UE stops processing of one or more downlink channels during the measurement of the PRS.

[0347] Clause 44. A UE according to any one of clauses 35 to 43, wherein at least one processor is further configured to: transmit, via at least one transceiver, data services separated from the multiple reference signals used for positioning to a base station between two reference signals among the multiple reference signals used for positioning according to the first BWP configuration or the second BWP configuration.

[0348] Clause 45. The UE of clause 44, wherein the data traffic comprises downlink data traffic, and wherein the downlink data traffic is time division multiplexed (TDMed) with at least one downlink reference signal for positioning of the plurality of reference signals for positioning.

[0349] Clause 46. A UE as described in any of clauses 35 to 45, wherein the plurality of reference signals used for positioning are transmitted across a plurality of positioning frequency layers, and wherein the second BWP configuration comprises one or more parameters matched to a particular one of the plurality of positioning frequency layers.

[0350] Clause 47. A UE according to any one of clauses 35 to 46, wherein the multiple reference signals used for positioning are associated with round-trip time (RTT) measurement, multi-RTT measurement, single RTT measurement, differential RTT measurement, downlink angle of departure (AoD) measurement, uplink angle of arrival (AoA) measurement, or a combination thereof.

[0351] Clause 48. A UE as set forth in any of clauses 35 to 47, wherein the at least one processor is further configured to: after the communication of the plurality of reference signals, resume communication of data traffic with the base station in accordance with the first BWP configuration.

[0352] Clause 49. A UE as set forth in any of clauses 35 to 48, wherein a bandwidth associated with the second BWP configuration is greater than a bandwidth associated with the first BWP configuration.

[0353] Clause 50. A UE as set out in any of clauses 35 to 49, wherein the communicating according to the first BWP configuration and the communicating according to the second BWP configuration occur when the UE is in a radio resource control (RRC) inactive state.

[0354] Clause 51. A UE as set forth in any of clauses 35 to 50, wherein communications according to the first BWP configuration and communications according to the second BWP configuration occur while the UE is in a Radio Resource Control (RRC) connected state.

[0355] Clause 52. A UE as set forth in any of clauses 35 to 51, wherein the first BWP configuration is associated with a narrower bandwidth than the second BWP configuration.

[0356] Clause 53. A base station comprising: a memory; at least one transceiver; and at least one processor, the at least one processor being communicatively coupled to the memory and the at least one transceiver, the at least one processor being configured to: transmit data services to a user equipment (UE) via the at least one transceiver according to a first bandwidth part (BWP) configuration; send an indication of a second BWP configuration including a bandwidth different from the first BWP configuration to the UE in association with communication of multiple reference signals for positioning via the at least one transceiver; and transmit at least multiple reference signals for positioning according to the second BWP configuration during the duration of the communication of the multiple reference signals for positioning via the at least one transceiver.

[0357] Clause 54. The base station of clause 53, wherein the plurality of reference signals comprises a positioning reference signal (PRS) and a sounding reference signal for positioning (SRS-P).

[0358] Clause 55. The base station of any of clauses 53 to 54, wherein the indication comprises a displayed indication of the second BWP configuration.

[0359] Clause 56. The base station of clause 55, wherein the display indication is received via radio resource control (RRC) signaling, a medium access control (MAC) control element (CE), or a downlink control information (DCI) communication.

[0360] Clause 57. A base station as described in any of clauses 53 to 56, wherein the indication comprises an implicit indication of the second BWP configuration.

[0361] Clause 58. The base station of clause 57, wherein the implicit indication is based on a positioning reference signal (PRS) configuration, a sounding reference signal for positioning (SRS-P) configuration, or a combination thereof.

[0362] Clause 59. The base station of clause 58, wherein the implicit indication is based on configuring one or more time slots of the PRS and / or SRS-P or both.

[0363] Clause 60. A base station according to any one of clauses 53 to 59, wherein at least one processor is further configured to: transmit, via at least one transceiver, data services separated from the multiple reference signals used for positioning to the UE between two reference signals among the multiple reference signals used for positioning according to the first BWP configuration or the second BWP configuration.

[0364] Clause 61. The base station of clause 60, wherein the data traffic comprises downlink data traffic, and wherein the downlink data traffic is time division multiplexed (TDMed) with at least one downlink reference signal for positioning of the plurality of reference signals for positioning.

[0365] Clause 62. A base station as described in any of clauses 53 to 61, wherein the plurality of reference signals used for positioning are transmitted across a plurality of positioning frequency layers, and wherein the second BWP configuration comprises one or more parameters matched to a particular one of the plurality of positioning frequency layers.

[0366] Clause 63. A base station according to any one of clauses 53 to 62, wherein the multiple reference signals used for positioning are associated with round-trip time (RTT) measurement, multi-RTT measurement, single RTT measurement, differential RTT measurement, downlink angle of departure (AoD) measurement, uplink angle of arrival (AoA) measurement, or a combination thereof.

[0367] Clause 64. The base station of any of clauses 53 to 63, wherein the at least one processor is further configured to: after the communication of the plurality of reference signals, resume communication of data traffic with the UE in accordance with the first BWP configuration.

[0368] Clause 65. The base station of any of clauses 53 to 64, wherein a bandwidth associated with the second BWP configuration is greater than a bandwidth associated with the first BWP configuration.

[0369] Clause 66. A base station as set forth in any of clauses 53 to 65, wherein the communicating according to the first BWP configuration and the communicating according to the second BWP configuration occur when the UE is in a radio resource control (RRC) inactive state.

[0370] Clause 67. A base station as set forth in any of clauses 53 to 66, wherein communications according to the first BWP configuration and communications according to the second BWP configuration occur when the UE is in a Radio Resource Control (RRC) connected state.

[0371] Clause 68. A base station as described in any of clauses 53 to 67, wherein the first BWP configuration is associated with a narrower bandwidth than the second BWP configuration.

[0372] Clause 69. A user equipment (UE) comprising: components for communicating data services with a base station according to a first bandwidth part (BWP) configuration; components for receiving, from the base station in association with communication of multiple reference signals for positioning, an indication of a second BWP configuration including a bandwidth different from the first BWP configuration; and components for transmitting, during the duration of the communication of the multiple reference signals for positioning, multiple reference signals for positioning according to the second BWP configuration.

[0373] Clause 70. The UE of clause 69, wherein the plurality of reference signals comprises a positioning reference signal (PRS) and a sounding reference signal for positioning (SRS-P).

[0374] Clause 71. A UE as set forth in any of clauses 69 to 70, wherein the indication comprises an explicit indication of the second BWP configuration.

[0375] Clause 72. A UE as described in any of clauses 69 to 71, wherein the indication is received via radio resource control (RRC) signaling, medium access control (MAC) control element (CE) or downlink control information (DCI) communication.

[0376] Clause 73. A UE as set forth in any of clauses 69 to 72, wherein the indication comprises an implicit indication of the second BWP configuration.

[0377] Clause 74. The UE of clause 73, wherein the implicit indication is based on a positioning reference signal (PRS) configuration, a sounding reference signal for positioning (SRS-P) configuration, or a combination thereof.

[0378] Clause 75. A UE as described in clause 74, wherein the implicit indication is based on configuring one or more time slots of PRS and / or SRS-P or both.

[0379] Clause 76. A UE as described in any of clauses 69 to 75, further comprising: means for performing measurements on at least one of the plurality of reference signals used for positioning without a measurement gap.

[0380] Clause 77. A UE according to any of clauses 69 to 76, wherein transmitting according to the second BWP configuration comprises performing measurements on a positioning reference signal (PRS), and wherein the UE stops processing of one or more downlink channels during the measurement of the PRS.

[0381] Clause 78. A UE according to any one of clauses 69 to 77, further comprising: a component for transmitting data traffic separated from the multiple reference signals used for positioning to the base station between two reference signals of the multiple reference signals used for positioning according to the first BWP configuration or the second BWP configuration.

[0382] Clause 79. A UE as described in clause 78, wherein the data traffic includes downlink data traffic, and wherein the downlink data traffic is time division multiplexed (TDMed) with at least one downlink reference signal for positioning among the plurality of reference signals for positioning.

[0383] Clause 80. A UE as described in any of clauses 69 to 79, wherein the plurality of reference signals used for positioning are transmitted across a plurality of positioning frequency layers, and wherein the second BWP configuration comprises one or more parameters matched to a particular one of the plurality of positioning frequency layers.

[0384] Clause 81. A UE according to any one of clauses 69 to 80, wherein the multiple reference signals used for positioning are associated with round-trip time (RTT) measurement, multi-RTT measurement, single RTT measurement, differential RTT measurement, downlink angle of departure (AoD) measurement, uplink angle of arrival (AoA) measurement, or a combination thereof.

[0385] Clause 82. A UE as described in any of clauses 69 to 81, further comprising means for resuming communication of data traffic with the base station according to the first BWP configuration after communication of the plurality of reference signals.

[0386] Clause 83. A UE as set forth in any of clauses 69 to 82, wherein a bandwidth associated with the second BWP configuration is greater than a bandwidth associated with the first BWP configuration.

[0387] Clause 84. A UE as set forth in any of clauses 69 to 83, wherein communications according to the first BWP configuration and communications according to the second BWP configuration occur when the UE is in a radio resource control (RRC) inactive state.

[0388] Clause 85. A UE as set forth in any of clauses 69 to 84, wherein communications according to the first BWP configuration and communications according to the second BWP configuration occur while the UE is in a Radio Resource Control (RRC) connected state.

[0389] Clause 86. A UE as set forth in any of clauses 69 to 85, wherein the first BWP configuration is associated with a narrower bandwidth than the second BWP configuration.

[0390] Clause 87. A base station comprising: components for communicating data services with a user equipment (UE) according to a first bandwidth part (BWP) configuration; components for sending an indication of a second BWP configuration including a bandwidth different from the first BWP configuration to the UE in association with communication of multiple reference signals for positioning; and components for transmitting at least multiple reference signals for positioning according to the second BWP configuration for the duration of the communication of the multiple reference signals for positioning.

[0391] Clause 88. The base station of clause 87, wherein the plurality of reference signals comprises a positioning reference signal (PRS) and a sounding reference signal for positioning (SRS-P).

[0392] Clause 89. A base station as described in any of clauses 87 to 88, wherein the indication comprises a displayed indication of the second BWP configuration.

[0393] Clause 90. The base station of clause 89, wherein the display indication is received via radio resource control (RRC) signaling, medium access control (MAC) control element (CE), or downlink control information (DCI) communication.

[0394] Clause 91. A base station as described in any of clauses 87 to 90, wherein the indication comprises an implicit indication of the second BWP configuration.

[0395] Clause 92. The base station of clause 91, wherein the implicit indication is based on a positioning reference signal (PRS) configuration, a sounding reference signal for positioning (SRS-P) configuration, or a combination thereof.

[0396] Clause 93. The base station of clause 92, wherein the implicit indication is based on configuring one or more time slots of the PRS and / or SRS-P or both.

[0397] Clause 94. A base station according to any of clauses 87 to 93, further comprising: means for transmitting data traffic separated from the multiple reference signals used for positioning to the UE between two reference signals of the multiple reference signals used for positioning according to the first BWP configuration or the second BWP configuration.

[0398] Clause 95. A base station according to clause 94, wherein the data traffic includes downlink data traffic, and wherein the downlink data traffic is time division multiplexed (TDMed) with at least one downlink reference signal for positioning among a plurality of reference signals for positioning.

[0399] Clause 96. A base station as described in any of clauses 87 to 95, wherein the plurality of reference signals used for positioning are transmitted across a plurality of positioning frequency layers, and wherein the second BWP configuration comprises one or more parameters matched to a particular one of the plurality of positioning frequency layers.

[0400] Clause 97. A base station according to any one of clauses 87 to 96, wherein the multiple reference signals used for positioning are associated with round-trip time (RTT) measurement, multi-RTT measurement, single RTT measurement, differential RTT measurement, downlink angle of departure (AoD) measurement, uplink angle of arrival (AoA) measurement, or a combination thereof.

[0401] Clause 98. A base station as described in any of clauses 87 to 97, further comprising: means for resuming communication of data traffic with the UE according to the first BWP configuration after communication of the plurality of reference signals.

[0402] Clause 99. The base station of any of clauses 87 to 98, wherein a bandwidth associated with the second BWP configuration is greater than a bandwidth associated with the first BWP configuration.

[0403] Clause 100. A base station as set forth in any of clauses 87 to 99, wherein the communicating according to the first BWP configuration and the communicating according to the second BWP configuration occur when the UE is in a radio resource control (RRC) inactive state.

[0404] Clause 101. A base station as set forth in any of clauses 87 to 100, wherein communications according to the first BWP configuration and communications according to the second BWP configuration occur when the UE is in a Radio Resource Control (RRC) connected state.

[0405] Clause 102. The base station of any of clauses 87 to 101, wherein the first BWP configuration is associated with a narrower bandwidth than the second BWP configuration.

[0406] Clause 103. A non-transitory computer-readable medium storing computer-executable instructions which, when executed by a user equipment (UE), cause the UE to: transmit data services with a base station according to a first bandwidth part (BWP) configuration; receive from the base station an indication of a second BWP configuration including a bandwidth different from the first BWP configuration in association with communication of multiple reference signals for positioning; and transmit at least multiple reference signals for positioning according to the second BWP configuration for the duration of the communication of the multiple reference signals for positioning.

[0407] Clause 104. The non-transitory computer-readable medium of clause 103, wherein the plurality of reference signals comprises a positioning reference signal (PRS) and a sounding reference signal for positioning (SRS-P).

[0408] Clause 105. The non-transitory computer-readable medium of any of Clauses 103 to 104, wherein the indication comprises an explicit indication of the second BWP configuration.

[0409] Clause 106. The non-transitory computer-readable medium of any one of clauses 103 to 105, wherein the indication is received via radio resource control (RRC) signaling, a medium access control (MAC) control element (CE), or a downlink control information (DCI) communication.

[0410] Clause 107. The non-transitory computer-readable medium of any of clauses 103 to 106, wherein the indication comprises an implicit indication of the second BWP configuration.

[0411] Clause 108. The non-transitory computer-readable medium of clause 107, wherein the implicit indication is based on a positioning reference signal (PRS) configuration, a sounding reference signal for positioning (SRS-P) configuration, or a combination thereof.

[0412] Clause 109. The non-transitory computer-readable medium of clause 108, wherein the implicit indication is based on configuring one or more time slots of the PRS and / or SRS-P or both.

[0413] Clause 110. The non-transitory computer-readable medium of any of clauses 103 to 109, wherein the instructions further cause the UE to: perform measurements on at least one of the plurality of reference signals used for positioning without a measurement gap.

[0414] Clause 111. A non-transitory computer-readable medium as described in any of clauses 103 to 110, wherein transmitting according to the second BWP configuration includes performing measurements on a positioning reference signal (PRS), and wherein the UE stops processing one or more downlink channels during the measurement of the PRS.

[0415] Clause 112. A non-transitory computer-readable medium according to any one of clauses 103 to 111, wherein the instructions further cause the UE to: transmit data services separated from the multiple reference signals used for positioning to the base station between two reference signals among the multiple reference signals used for positioning according to the first BWP configuration or the second BWP configuration.

[0416] Clause 113. A non-transitory computer-readable medium as described in clause 112, wherein the data traffic includes downlink data traffic, and wherein the downlink data traffic is time division multiplexed (TDMed) with at least one downlink reference signal for positioning of a plurality of reference signals for positioning.

[0417] Clause 114. The non-transitory computer-readable medium of any one of clauses 103 to 113, wherein the plurality of reference signals for positioning are transmitted across a plurality of positioning frequency layers, and wherein the second BWP configuration comprises one or more parameters that match a particular one of the plurality of positioning frequency layers.

[0418] Clause 115. A non-transitory computer-readable medium as described in any of clauses 103 to 114, wherein the multiple reference signals used for positioning are associated with round-trip time (RTT) measurements, multi-RTT measurements, single RTT measurements, differential RTT measurements, downlink angle of departure (AoD) measurements, uplink angle of arrival (AoA) measurements, or a combination thereof.

[0419] Clause 116. The non-transitory computer-readable medium of any of clauses 103 to 115, wherein the instructions further cause the UE to: after the communication of the plurality of reference signals, resume communication of data traffic with the base station according to the first BWP configuration.

[0420] Clause 117. The non-transitory computer-readable medium of any of clauses 103 to 116, wherein a bandwidth associated with the second BWP configuration is greater than a bandwidth associated with the first BWP configuration.

[0421] Clause 118. The non-transitory computer-readable medium of any of clauses 103 to 117, wherein the communicating according to the first BWP configuration and the communicating according to the second BWP configuration occur when the UE is in a radio resource control (RRC) inactive state.

[0422] Clause 119. The non-transitory computer-readable medium of any of clauses 103 to 118, wherein the communications according to the first BWP configuration and the communications according to the second BWP configuration occur while the UE is in a radio resource control (RRC) connected state.

[0423] Clause 120. The non-transitory computer-readable medium of any of clauses 103 to 119, wherein the first BWP configuration is associated with a narrower bandwidth than the second BWP configuration.

[0424] Clause 121. A non-transitory computer-readable medium storing computer-executable instructions which, when executed by a base station, cause the base station to: transmit data services to a user equipment (UE) according to a first bandwidth part (BWP) configuration; send to the UE an indication of a second BWP configuration including a bandwidth different from the first BWP configuration in association with communication of multiple reference signals for positioning; and transmit at least multiple reference signals for positioning according to the second BWP configuration for the duration of the communication of the multiple reference signals for positioning.

[0425] Clause 122. The non-transitory computer-readable medium of clause 121, wherein the plurality of reference signals comprises a positioning reference signal (PRS) and a sounding reference signal for positioning (SRS-P).

[0426] Clause 123. The non-transitory computer-readable medium of any of Clauses 121 to 122, wherein the indication comprises an explicit indication of the second BWP configuration.

[0427] Clause 124. The non-transitory computer-readable medium of clause 123, wherein the display indication is received via radio resource control (RRC) signaling, a medium access control (MAC) control element (CE), or a downlink control information (DCI) communication.

[0428] Clause 125. The non-transitory computer-readable medium of any of clauses 121 to 124, wherein the indication comprises an implicit indication of the second BWP configuration.

[0429] Clause 126. The non-transitory computer-readable medium of clause 125, wherein the implicit indication is based on a positioning reference signal (PRS) configuration, a sounding reference signal for positioning (SRS-P) configuration, or a combination thereof.

[0430] Clause 127. The non-transitory computer-readable medium of clause 126, wherein the implicit indication is based on configuring one or more time slots of the PRS and / or SRS-P or both.

[0431] Clause 128. A non-transitory computer-readable medium according to any one of clauses 121 to 127, wherein the instructions further cause the base station to: transmit data services separated from the multiple reference signals used for positioning to the UE between two reference signals among the multiple reference signals used for positioning according to the first BWP configuration or the second BWP configuration.

[0432] Clause 129. A non-transitory computer-readable medium as described in clause 128, wherein the data traffic includes downlink data traffic, and wherein the downlink data traffic is time division multiplexed (TDMed) with at least one downlink reference signal for positioning among a plurality of reference signals for positioning.

[0433] Clause 130. The non-transitory computer-readable medium of any one of clauses 121 to 129, wherein the plurality of reference signals for positioning are transmitted across a plurality of positioning frequency layers, and wherein the second BWP configuration comprises one or more parameters that match a particular one of the plurality of positioning frequency layers.

[0434] Clause 131. A non-transitory computer-readable medium as described in any of clauses 121 to 130, wherein multiple reference signals used for positioning are associated with round-trip time (RTT) measurements, multi-RTT measurements, single RTT measurements, differential RTT measurements, downlink angle of departure (AoD) measurements, uplink angle of arrival (AoA) measurements, or a combination thereof.

[0435] Clause 132. The non-transitory computer-readable medium of any of clauses 121 to 131, wherein the instructions further cause the base station to: after the communication of the plurality of reference signals, resume communication of data traffic with the UE according to the first BWP configuration.

[0436] Clause 133. The non-transitory computer-readable medium of any one of clauses 121 to 132, wherein a bandwidth associated with the second BWP configuration is greater than a bandwidth associated with the first BWP configuration.

[0437] Clause 134. The non-transitory computer-readable medium of any of clauses 121 to 133, wherein the communicating according to the first BWP configuration and the communicating according to the second BWP configuration occur when the UE is in a radio resource control (RRC) inactive state.

[0438] Clause 135. The non-transitory computer-readable medium of any of clauses 121 to 134, wherein the communications according to the first BWP configuration and the communications according to the second BWP configuration occur while the UE is in a radio resource control (RRC) connected state.

[0439] Clause 136. The non-transitory computer-readable medium of any of clauses 121 to 135, wherein the first BWP configuration is associated with a narrower bandwidth than the second BWP configuration.

[0440] Those skilled in the art will appreciate that any of a variety of different technologies and techniques may be used to represent information and signals. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the above specification may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0441] In addition, it will be appreciated by those skilled in the art that various illustrative logic blocks, modules, circuits and algorithmic steps described in conjunction with various aspects disclosed herein can be implemented as electronic hardware, computer software or a combination of the two. In order to clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits and steps have been described above generally according to their functions. Whether such functions are implemented as hardware or software depends on specific applications and on the design constraints imposed by the overall system. Technicians can implement the functions in different ways for each specific application, but such specific implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.

[0442] The various illustrative logical blocks, modules, and circuits described in conjunction with the various aspects disclosed herein may be implemented or executed with a general purpose processor, a DSP, an ASIC, an FPGA, or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but alternatively, the processor may be any conventional processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a plurality of microprocessors, a combination of one or more microprocessors with a DSP core, or any other such configuration.

[0443] The methods, sequences and / or algorithms described in conjunction with the various aspects disclosed herein may be directly embodied in hardware, software modules executed by a processor, or a combination of the two. The software module may reside in a random access memory (RAM), a flash memory, a read-only memory (ROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM), a register, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to a processor so that the processor can read information from the storage medium and write information to the storage medium. Alternatively, the storage medium may be integrated with the processor. The processor and the storage medium may reside in an ASIC. The ASIC may reside in a user terminal (e.g., UE). Alternatively, the processor and the storage medium may reside in a user terminal as discrete components.

[0444] In one or more exemplary aspects, the functions described can be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the functions can be stored on a computer-readable medium or sent via a computer-readable medium as instructions or codes. Computer-readable media include computer storage media and communication media, which include any media that are conducive to transferring a computer program from one place to another. Storage media can be any available media that can be accessed by a computer. By way of example and not limitation, such computer-readable media may include RAM, ROM, EEPROM, CD-ROM, or other optical disk storage devices, disk storage devices, or other magnetic storage devices, or may be used to carry or store the required program code in the form of instructions or data structures and any other media that can be accessed by a computer. In addition, any connection is appropriately referred to as a computer-readable medium. For example, if the software is sent from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technology (such as infrared, radio, and microwave), coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technology (such as infrared, radio, and microwave) may be included in the definition of the medium. Disks and optical disks, as used herein, include compact disks (CDs), laser disks, optical disks, digital versatile disks (DVDs), floppy disks, and Blu-ray disks, where disks typically reproduce data magnetically, while optical disks reproduce data optically using lasers. Combinations of the above should also be included within the scope of computer-readable media.

[0445] Although the foregoing disclosure shows the exemplary aspects of the present disclosure, it should be noted that various changes and modifications may be made herein without departing from the scope of the present disclosure as defined by the appended claims. The functions, steps and / or actions of the method claims according to the various aspects of the present disclosure described herein do not need to be performed in any particular order. In addition, although the elements of the present disclosure may be described or claimed in the singular, the plural form may also be envisioned unless the limitation to the singular form is explicitly stated.

Claims

1. A method of operating a user equipment (UE), comprising: transmitting data services with a base station according to a first bandwidth part (BWP) configuration; receiving, from the base station in association with communication of a plurality of reference signals for positioning, an indication of a second BWP configuration including a bandwidth different from the first BWP configuration; as well as During the duration of the communication of the plurality of reference signals for positioning, at least the plurality of reference signals for positioning are transmitted according to the second BWP configuration. 2 . The method according to claim 1 , wherein the plurality of reference signals include a positioning reference signal (PRS) and a sounding reference signal for positioning (SRS-P). 3 . The method of claim 1 , wherein the indication comprises an explicit indication of the second BWP configuration.

4. The method of claim 1, wherein the indication is received via radio resource control (RRC) signaling, medium access control (MAC) control element (CE), or downlink control information (DCI) communication. The method of claim 1 , wherein the indication comprises an implicit indication of the second BWP configuration.

6. The method of claim 5, wherein the implicit indication is based on a positioning reference signal (PRS) configuration, a sounding reference signal for positioning (SRS-P) configuration, or a combination thereof.

7. The method of claim 6, wherein the implicit indication is based on one or more time slots in which PRS, SRS-P, or both are configured.

8. The method according to claim 1, further comprising: Measurement is performed on at least one of the plurality of reference signals used for positioning without a measurement gap.

9. The method according to claim 1, wherein transmitting according to the second BWP configuration comprises performing measurements on a positioning reference signal (PRS), and The UE stops processing one or more downlink channels during the measurement of the PRS.

10. The method according to claim 1, further comprising: According to the first BWP configuration or the second BWP configuration, data traffic separated from the multiple reference signals used for positioning is transmitted to the base station between two reference signals among the multiple reference signals used for positioning.

11. The method according to claim 10, wherein the data service comprises downlink data service, and The downlink data service is time division multiplexed (TDMed) with at least one downlink reference signal used for positioning among the multiple reference signals used for positioning.

12. The method according to claim 1, wherein the plurality of reference signals used for positioning are transmitted across a plurality of positioning frequency layers, and The second BWP configuration includes one or more parameters matching a specific one of the multiple positioning frequency layers.

13. The method of claim 1, wherein the multiple reference signals used for positioning are associated with round trip time (RTT) measurement, multiple RTT measurement, single RTT measurement, differential RTT measurement, downlink angle of departure (AoD) measurement, uplink angle of arrival (AoA) measurement, or a combination thereof.

14. The method according to claim 1, further comprising: After the communication of the plurality of reference signals, the communication of the data service with the base station is resumed according to the first BWP configuration.

15. The method of claim 1, wherein a bandwidth associated with the second BWP configuration is greater than a bandwidth associated with the first BWP configuration.

16. The method of claim 1, wherein communicating according to the first BWP configuration and communicating according to the second BWP configuration occur when the UE is in a radio resource control (RRC) inactive state.

17. The method of claim 1, wherein the communication according to the first BWP configuration and the communication according to the second BWP configuration occur when the UE is in a radio resource control (RRC) connected state.

18. The method of claim 1, wherein the first BWP configuration is associated with a narrower bandwidth than the second BWP configuration.

19. A user equipment UE, comprising: Memory; at least one transceiver; as well as at least one processor, the at least one processor being communicatively coupled to the memory and the at least one transceiver, the at least one processor being configured to: communicating data traffic with a base station via the at least one transceiver according to a first bandwidth part (BWP) configuration; receiving, via the at least one transceiver, from the base station an indication of a second BWP configuration including a bandwidth different from the first BWP configuration in association with communication of a plurality of reference signals for positioning; as well as At least the plurality of reference signals for positioning are transmitted according to the second BWP configuration via the at least one transceiver for a duration of communication of the plurality of reference signals for positioning.

20. The UE of claim 19, wherein the plurality of reference signals include a positioning reference signal (PRS) and a sounding reference signal for positioning (SRS-P).

21. The UE of claim 19, wherein the indication comprises an explicit indication of the second BWP configuration.

22. The UE of claim 19, wherein the indication is received via radio resource control (RRC) signaling, medium access control (MAC) control element (CE), or downlink control information (DCI) communication.

23. The UE of claim 19, wherein the indication comprises an implicit indication of the second BWP configuration.

24. The UE of claim 23, wherein the implicit indication is based on a positioning reference signal (PRS) configuration, a sounding reference signal for positioning (SRS-P) configuration, or a combination thereof.

25. The UE of claim 24, wherein the implicit indication is based on one or more time slots in which PRS and / or SRS-P or both are configured.

26. The UE of claim 19, wherein the at least one processor is further configured to: Measurement is performed on at least one of the plurality of reference signals used for positioning without a measurement gap.

27. The UE according to claim 19, wherein transmitting according to the second BWP configuration comprises performing measurements on a positioning reference signal (PRS), and The UE stops processing one or more downlink channels during the measurement of the PRS.

28. The UE of claim 19, wherein the at least one processor is further configured to: Data traffic separated from the plurality of reference signals used for positioning is transmitted to the base station between two reference signals among the plurality of reference signals used for positioning via the at least one transceiver according to the first BWP configuration or the second BWP configuration.

29. The UE according to claim 28, wherein the data service comprises downlink data service, and The downlink data service is time division multiplexed (TDMed) with at least one downlink reference signal used for positioning among the multiple reference signals used for positioning.

30. The UE according to claim 19, wherein the plurality of reference signals used for positioning are transmitted across a plurality of positioning frequency layers, and The second BWP configuration includes one or more parameters matching a specific one of the multiple positioning frequency layers.

Images