User equipment (UE) centric positioning techniques in 5g new radio with multiple bandwidth parts

Abstract

In the disclosed technology, a user equipment (UE) receiving location assistance data determines a preferred bandwidth part (BWP) with which reference signals from one or more base stations can be measured for position determination of the UE. The selection of the preferred BWP can be based on a determination of the frequency and bandwidth of the reference signals to be transmitted by the one or more base stations in a procedure at a positioning station. The preferred BWP can be one of a plurality of candidate BWPs that allows a required number of reference signal measurements to be made without requiring retuning of a transceiver of the UE.

Description

Background Technology

[0001] In fifth-generation (5G) new radio (NR) mobile communication networks, base stations can transmit reference signals that can be measured at the UE to determine the UE's location using any of a variety of network-based positioning methods. While these techniques may be similar to those used in Long Term Evolution (LTE) (or 4G) networks, 5G's ability to break down a carrier into bandwidth portions (BWPs) is different. Positioning in 5G NR can occur with multiple BWPs of different configurations, and the base station (NR Node B or "gNB") can switch BWPs via downlink control information (DCI) or radio resource control (RRC) during an ongoing positioning session. To measure reference signals across multiple BWPs, the UE may need to retune its transceiver to the target frequency for measurement, which can lead to latency and other inefficiencies. Summary of the Invention

[0002] According to this disclosure, an example method for determining a preferred bandwidth portion (BWP) for a positioning session at a mobile device includes determining the frequency and bandwidth of each of a plurality of reference signals to be transmitted by one or more base stations during the positioning session, based at least in part on auxiliary data received by the mobile device. The method also includes determining the frequency and bandwidth of each of the plurality of BWPs based at least in part on radio receiver configuration (RRC) information received by the mobile device. The method further includes determining a preferred BWP based at least in part on the frequency and bandwidth of the plurality of BWPs and the plurality of reference signals. The method also includes sending an indication of the preferred BWP to the serving base station.

[0003] According to this disclosure, an example method for configuring a transceiver of a mobile device for a positioning session includes determining, at least in part, the frequency and bandwidth of each of a plurality of reference signals to be transmitted by one or more base stations during the positioning session, based on auxiliary data received by the mobile device. The method further includes determining a minimum frequency (F) encapsulating the plurality of reference signals used for measurements during the positioning session. min ) and maximum frequency (F max The method also includes determining the receive bandwidth based at least in part on a determined minimum frequency and a determined maximum frequency. The method also includes tuning the transceiver of the mobile device from the active bandwidth portion (BWP) to the receive bandwidth used for locating the session.

[0004] According to this disclosure, an example mobile device includes a transceiver, a memory, and one or more processing units communicatively coupled to the transceiver and the memory. The one or more processing units are configured to determine, at least in part, the frequency and bandwidth of each of a plurality of reference signals to be transmitted by one or more base stations during a positioning session, based on auxiliary data received by the mobile device. The one or more processing units are also configured to determine, at least in part, the frequency and bandwidth of each of a plurality of bounding window configurations (BWPs) based on radio receiver configuration (RRC) information received by the mobile device, and to determine a preferred bandwidth portion (BWP) based at least in part on the frequency and bandwidth of the plurality of BWPs and the plurality of reference signals. The one or more processing units are further configured to transmit an indication of the preferred BWP to a serving base station via the transceiver.

[0005] According to this disclosure, another example mobile device includes: a transceiver, a memory, and one or more processing units communicatively coupled to the transceiver and the memory. The one or more processing units are configured to determine, at least in part, the frequency and bandwidth of each of a plurality of reference signals to be transmitted by one or more base stations during a positioning session, based on auxiliary data received by the mobile device. The one or more processing units are also configured to determine a minimum frequency (fmin) and a maximum frequency (fmax) of the plurality of reference signals encapsulated for measurements during the positioning session. The one or more processing units are further configured to determine a receive bandwidth based at least in part on the determined minimum frequency and the determined maximum frequency, and to tune the transceiver from the active bandwidth portion (BWP) to the receive bandwidth used for the positioning session.

[0006] These and other embodiments are described in detail below. Other embodiments, for example, are directed to systems, devices, and computer-readable media associated with the methods described herein. Among other advantages, the embodiments described herein can mitigate degradation in both inter-frequency and intra-frequency measurements, and also reduce latency for locating fixed cumulative measurements.

[0007] The nature and advantages of the embodiments of this disclosure can be better understood by referring to the following detailed description and accompanying drawings. Attached Figure Description

[0008] Figure 1 This is a simplified illustration of a positioning system according to an embodiment of the present disclosure.

[0009] Figure 2 This is a schematic diagram of a positioning system within a 5G NR wireless network according to an embodiment.

[0010] Figure 3 The diagram illustrates the 5G NR spectrum and BWP concept.

[0011] Figure 4This illustrates various aspects of an example 5G NR wireless network.

[0012] Figure 5 This illustrates a simplified information exchange between the UE and the base station.

[0013] Figure 6 Another illustration shows the 5G NR spectrum and BWP concept.

[0014] Figure 7 The procedure for determining the preferred BWP for the location session at the UE is shown.

[0015] Figure 8 This illustrates a simplified information exchange between the UE and multiple base stations.

[0016] Figure 9 The procedure for configuring a UE to postpone or delay radio frequency (RF) or device reconfiguration is shown.

[0017] Figure 10 This is a block diagram of an embodiment of a user equipment (UE) device.

[0018] Figure 11 This is a block diagram of an embodiment of a computer system (e.g., a server).

[0019] Figure 12 This is a block diagram of an embodiment of a base station.

[0020] According to certain exemplary embodiments, similar references and symbols in various figures indicate similar elements. Furthermore, multiple instances of an element can be indicated by adding a letter or hyphen after the first digit of the element and a second digit. For example, multiple instances of element 110 can be indicated as 110-1, 110-2, 110-3, etc., or as 110a, 110b, 110c, etc. When only the first digit is used to refer to such an element, any instance of that element should be understood (e.g., element 110 in the previous example would refer to elements 110-1, 110-2, and 110-3, or elements 110a, 110b, and 110c). Detailed Implementation

[0021] The following detailed description of the example implementation is with reference to the accompanying drawings. The same reference numerals in different drawings may identify the same or similar elements.

[0022] Several illustrative embodiments will now be described in conjunction with the accompanying drawings, which form part of this document. While specific embodiments in which one or more aspects of this disclosure may be implemented are described below, other embodiments may be used and various modifications may be made without departing from the scope of this disclosure.

[0023] As used herein, an "RF signal" includes electromagnetic waves that transmit information through space between a transmitter (or transmitting device) and a receiver (or receiving device). As used herein, a transmitter may send 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 the transmitter and receiver can be referred to as a "multipath" RF signal.

[0024] Figure 1 This is a simplified illustration of a positioning system 100 according to an embodiment, wherein the UE 105, location server (LS) 160, and / or other components of the positioning system 100 may use the techniques provided herein for determining and estimating the location of the UE 105. The techniques described herein may be implemented by one or more components of the positioning system 100. The positioning system 100 may include the UE 105, one or more satellites 110 for a Global Navigation Satellite System (GNSS) (e.g., Global Positioning System (GPS) (also known as a GNSS Space Vehicle (SV))), a base station 120, an access point (AP) 130, an LS 160, a network 170, and an external client 180.

[0025] It should be noted that, Figure 1 Only a general illustration of the various components is provided, where any or all of the components can be used as appropriate, and each component can be replicated as needed. Specifically, although only one UE 105 is shown, it is understood that many UEs (e.g., hundreds, thousands, millions, etc.) can utilize positioning system 100. Similarly, positioning system 100 may include more than Figure 1 The diagram shows a greater or lesser number of base stations 120 and / or access points 130. The connections between the various components in the illustrated connectivity positioning system 100 include data and signaling connections, which may include additional (intermediate) components, direct or indirect physical and / or wireless connections, and / or additional networks. Furthermore, depending on the desired functionality, components may be rearranged, combined, separated, replaced, and / or omitted. In some embodiments, for example, an external client 180 may connect directly to the LS 160. Those skilled in the art will recognize numerous modifications to the illustrated components.

[0026] Depending on the required functionality, network 170 may include any of a variety of wireless and / or wired networks. For example, network 170 may include any combination of public and / or private networks, local area networks (LANs) and / or wide area networks (WANs), etc. Furthermore, network 170 may utilize one or more wired and / or wireless communication technologies. For example, in some embodiments, network 170 may include cellular or other mobile networks, wireless local area networks (WLANs), wireless wide area networks (WWANs), and / or the Internet. Specific examples of network 170 include LTE wireless networks, 5G NR networks (also simply referred to as NR networks), Wi-Fi WLANs, and the Internet. LTE, 5G, and NR are wireless technologies defined or being defined by the 3rd Generation Partnership Project (3GPP). Network 170 may also include more than one network and / or more than one network type.

[0027] Base station 120 and access point (AP) 130 are communicatively coupled to network 170. In some embodiments, base station 120 may be owned, maintained, and / or operated by a cellular network provider and may employ any of the various wireless technologies described below. Depending on the technology of network 170, base station 120 may include a Node B, an evolved Node B (eNodeB or eNB), a basic transceiver station (BTS), a radio base station (RBS), an NR NodeB (gNB), a next-generation eNB (ng-eNB), etc. Base station 120, as a gNB or ng-eNB, may be part of a next-generation radio access network (NG-RAN), and in the case that network 170 is a 5G network, it may connect to a 5G core network (5G CN). For example, AP 130 may include a Wi-Fi AP or AP. Therefore, UE 105 can send and receive information with network-connected devices (e.g., LS 160) via base station 120 through access network 170 using the first communication link 133. Additionally or alternatively, because AP 130 can also be communicatively coupled to network 170, UE 105 can use the second communication link 135 to communicate with Internet-connected devices including LS 160.

[0028] LS 160 may include a server and / or other computing devices configured to determine the estimated location of UE 105 and / or provide data (e.g., “auxiliary data”) to UE 105 to facilitate location determination. According to some embodiments, LS 160 may include a Home Safe User Plane Location (SUPL) location platform (H-SLP) that can support SUPL User Plane (UP) location solutions defined by the Open Mobile Alliance (OMA) and can support location services for UE 105 based on subscription information of UE 105 stored in LS 160. In some embodiments, LS 160 may include a Discovery SLP (D-SLP) or an Emergency SLP (E-SLP). LS 160 may also include an Enhanced Serving Mobility Location Center (E-SMLC) that uses a Control Plane (CP) location solution for LTE radio access for UE 105 to support the location of UE 105. LS 160 may also include a Location Management Function (LMF), which supports the location of UE 105 using a Control Plane (CP) location solution for 5G or NR radio access for UE 105. In the CP location solution, signaling for controlling and managing the location of UE 105 can be exchanged between elements of network 170 and with UE 105 using existing network interfaces and protocols, and as signaling from the perspective of network 170. In the UP location solution, from the perspective of network 170, signaling for controlling and managing the location of UE 105 can be exchanged between LS 160 and UE 105 as data (e.g., data sent using Internet Protocol (IP) and / or Transmission Control Protocol (TCP)).

[0029] The estimated location of UE 105 can be used for various applications—for example, to assist a user of UE 105 in finding or navigating, or to assist another user (e.g., associated with an external client 180) in locating UE 105. "Location" is also referred to herein as "location estimate," "estimated location," "position," "location," "location estimate," "location fixed," "estimated location," "location fixed," or "fixed." The location of UE 105 can include the absolute location of UE 105 (e.g., longitude and latitude and possibly altitude) or the relative location of UE 105 (e.g., location expressed as a distance to north or south, east or west, and possibly higher or lower than some other known fixed location or some other location, such as the location of UE 105 at some known previous time). Location can also be specified as a geodetic location (such as longitude and latitude) or a municipal location (e.g., based on a street address or using other location-related names and labels). Location may also include indications of uncertainty or error, such as the expected horizontal and vertical distances of the location error, or an indication of the area or volume (e.g., circular or elliptical) in which the UE105 is expected to be located at a certain confidence level (e.g., 95% confidence level).

[0030] External client 180 may be a web server or remote application associated with UE 105 (e.g., accessible to users of UE 105), or it may be a server, application, or computer system that provides location services to one or more other users, including obtaining and providing the location of UE 105 (e.g., to enable services such as friend or relative searchers, asset tracking, or the location of children or pets). Additionally or alternatively, external client 180 may obtain and provide the location of UE 105 to emergency service providers, government agencies, etc.

[0031] As previously mentioned, this example positioning system 100 can be implemented using a wireless communication network, such as an LTE-based network or a 5G NR-based network. Figure 2 A schematic diagram of a 5G NR positioning system 200 is shown, illustrating an embodiment of a positioning system (e.g., positioning system 200) implementing 5G NR. The 5G NR positioning system 200 can be configured to use access nodes (e.g., gNB 210, ng-eNB 214, WLAN 216, which can correspond to...) Figure 1The 5G NR positioning system 200 uses base station 120 and access point 130, and (optionally) LMF 220 (which may correspond to LS 160) to implement one or more positioning methods to determine the location of UE 105. Here, the 5G NR positioning system 200 includes UE 105, and a 5G NR network comprising a next-generation (NG) radio access network (RAN) (NG-RAN) 235 and a 5G core network (5G CN) 240. The 5G network may also be referred to as an NR network; NG-RAN 235 may be referred to as 5G RAN or NR RAN; and 5G CN 240 may be referred to as the NG core network. Standardization of NG-RAN and 5G CN is underway in 3GPP. Therefore, NG-RAN 235 and 5G CN 240 may conform to current or future 5G-supported standards of 3GPP. The 5G NR positioning system 200 may also utilize information from GNSS satellites 110 from GNSS systems such as Global Positioning System (GPS) or similar systems. The additional components of the 5G NR positioning system 200 are described below. The 5G NR positioning system 200 may include additional or alternative components.

[0032] It should be noted that, Figure 2 Only a general description of the various components is provided, wherein any or all of the components may be used as appropriate, and each component may be copied or omitted as needed. Specifically, although only one UE 105 is shown, it will be understood that many UEs (e.g., hundreds, thousands, millions, etc.) may utilize the 5G NR positioning system 200. Similarly, the 5G NR positioning system 200 may include a larger (or smaller) number of GNSS satellites 110, gNB 210, ng-eNB 214, WLAN 216, Access and Mobility Function (AMF) 215, external clients 230, and / or other components. The connections shown to the various components in the 5G NR positioning system 200 include data and signaling connections, which may include additional (intermediate) components, direct or indirect physical and / or wireless connections, and / or additional networks. Furthermore, depending on the required functionality, components may be rearranged, combined, separated, replaced, and / or omitted.

[0033] UE 105 may include and / or be referred to as a device, mobile device, wireless device, mobile terminal, terminal, mobile station (MS), Secure User Plane Location (SUPL)-Enabled Terminal (SET), or some other name. Furthermore, UE 105 may correspond to a cellular phone, smartphone, laptop computer, tablet computer, personal data assistant (PDA), tracking device, navigation device, Internet of Things (IoT) device, or some other portable or mobile device. Typically, although not necessarily, UE 105 may support wireless communication using one or more Radio Access Technologies (RATs), such as Global System for Mobile Communications (GSM), Code Division Multiple Access (CDMA), Wideband CDMA (WCDMA), Long Term Evolution (LTE), High Speed ​​Packet Data (HRPD), and Institute of Electrical and Electronics Engineers (IEEE) 802.11. Bluetooth, WiMAX interoperability TM ), 5G NR (e.g., using NG-RAN 235 and 5G CN 240), etc. UE 105 can also support wireless communication using WLAN 216, which (like one or more RATs, and as previously mentioned) Figure 1 (As indicated) can connect to other networks (e.g., the Internet). Using one or more of these RATs allows UE 105 to communicate with external client 230 (e.g., via...). Figure 2 Components of the 5G CN 240 not shown in the diagram, or may communicate via a gateway mobile location center (GMLC) 225, and / or allow an external client 230 to receive location information about the UE 105 (e.g., via GMLC 225).

[0034] UE 105 may include a single entity or may include multiple entities, such as in a personal area network, where a user may employ audio, video, and / or data input / output devices, and / or body sensors, as well as separate wired or wireless modems. The estimation of the location of UE 105 may be referred to as location, location estimate, location fixed, fixed, positioning, location estimation, or location fixed, and may be geodetic, providing location coordinates (e.g., latitude and longitude) for UE 105, which may or may not include an altitude component (e.g., altitude above sea level, altitude above ground level, floor level, or basement level, or depth below ground level, floor level, or basement level). Alternatively, the location of UE 105 may be represented as a municipal location (e.g., as a postal address or designation of points or small areas within a building (e.g., a specific room or floor)). The location of UE 105 may also be represented as an area or volume (geographically or in municipal form) in which UE 105 is expected to be located with some probability or confidence level (e.g., 67%, 95%, etc.). The location of UE 105 can also be a relative location, which includes, for example, distance and direction defined relative to an origin at a known location, or relative X, Y (and Z) coordinates, which can be defined geographically, urbanly, or by a point, area, or volume indicated on a reference map, floor plan, or building plan. In the description contained herein, unless otherwise indicated, the use of the term location can include any of these variations. When calculating the location of the UE, local X, Y, and possibly Z coordinates are typically resolved, and then, if necessary, the local coordinates are converted to absolute coordinates (e.g., latitude, longitude, and altitude above or below mean sea level).

[0035] Figure 2 The base station in the NG-RAN 235 shown can correspond to Figure 1 Base station 120 in the NG-RAN 235. As described herein, a transmit-receive point (TRP) may include NR NodeBs (gNBs) 210-1 and 210-2 (collectively referred to herein as gNB 210) and / or the antennas of the gNBs, and / or other radio network nodes of the 5G NR positioning system 200 that provide network access to UE 105. A pair of gNBs 210 in the NG-RAN 235 may be interconnected – for example, as Figure 2 The connection is shown as either direct or indirect via another gNB 210. Access to the 5G network is provided to UE 105 via wireless communication between UE 105 and one or more gNBs 210, which can provide wireless communication access to the 5G CN 240 on behalf of UE 105 using 5G NR. 5G NR radio access can also be referred to as NR radio access or 5G radio access. Figure 2In this context, the serving gNB for UE 105 is assumed to be gNB 210-1, although if UE 105 moves to another location, other gNBs (e.g., gNB 210-2) may serve as serving gNBs or may serve as secondary gNBs to provide additional throughput and bandwidth to UE 105.

[0036] Figure 2 The base station in the NG-RAN 235 shown may also include or replace a next-generation evolved Node B, also referred to as ng-eNB 214. Ng-eNB 214 may be connected to one or more gNBs 210 in the NG-RAN 235 – for example, directly or indirectly via other gNBs 210 and / or other ng-eNBs. ng-eNB 214 may provide LTE radio access and / or evolved LTE (eLTE) radio access to UE 105. Figure 2 Some gNB 210s (e.g., gNB 210-2) and / or ng-eNB 214s can be configured as positioning-only beacons, which can transmit signals (e.g., positioning reference signal (PRS) signals) and / or broadcast auxiliary data to assist the positioning of UE 105, but may not receive signals from UE 105 or from other UEs. It should be noted that, although Figure 2 Only one ng-eNB 214 is shown, but some embodiments may include multiple ng-eNB 214s.

[0037] The 5G NR positioning system 200 may also include one or more WLANs 216, which can connect to non-3GPP interoperability functions (N3IWF) 250 in the 5G CN 240 (e.g., in the case of untrusted WLAN 216). For example, WLAN 216 may support IEEE 802.11 Wi-Fi access for UE 105 and may include one or more Wi-Fi access points (APs). Here, N3IWF 250 may connect to other elements in the 5G CN 240 (e.g., Access and Mobility Management Function (AMF) 215). In some embodiments, WLAN 216 may support another radio access technology (RAT) (e.g., Bluetooth). N3IWF 250 may support secure access for UE 105 to other elements in the 5G CN 240, and / or may support interoperability between WLAN 216 and one or more protocols used by UE 105 and one or more protocols used by other elements of the 5G CN 240 (e.g., AMF 215). For example, N3IWF 250 can support the establishment of an Internet Protocol Security (IPSec) tunnel with UE 105, the termination of the Internet Key Exchange (IKE) v2 / IPSec protocol with UE 105, the termination of the N2 and N3 interfaces to the 5G CN 240 for the control plane and user plane respectively, and the relay of uplink and downlink control plane non-access stratum (NAS) signaling between UE 105 and AMF 215 via the N1 interface. In some other embodiments, WLAN 216 can be directly connected to components in the 5G CN 240 (e.g., such as...). Figure 2 The dashed line indicates AMF 215), but not via N3IWF 250—for example, if WLAN 216 is a trusted WLAN of 5G CN 24. It should be noted that although... Figure 2 Only one WLAN 216 is shown, but some embodiments may include multiple WLAN 216.

[0038] The access node may include any of various network entities that enable communication between UE 105 and AMF 215. This may include gNB 210, ng-eNB 214, WLAN 216, and / or other types of cellular base stations. However, the access node providing the functionality described herein may additionally or alternatively include entities that enable communication between UE 105 and AMF 215. Figure 2 The entity communicating with any of the various RATs not shown in the document may include non-cellular technologies. Therefore, the term "access node" as used in the embodiments described below may include, but is not necessarily limited to, gNB 210, ng-eNB 214, or WLAN 216.

[0039] In some embodiments, the access node (e.g., gNB 210, ng-eNB 214, or WLAN 216 (alone or in combination with other components of the 5G NR positioning system 200)) can be configured to, in response to a request for location information of a plurality of RATs received from LMF 220, perform a measurement for one of the plurality of RATs (e.g., a measurement by UE 105) and / or obtain from UE 105 measurements transmitted to the access node using one or more of the plurality of RATs. As previously stated, although Figure 2 Access nodes (e.g., gNB 210, ng-eNB 214, and WLAN 216) configured to communicate according to 5G NR, LTE, and Wi-Fi communication protocols are shown. However, access nodes configured to communicate according to other communication protocols can be used, such as a node B using the WCDMA protocol for the Universal Mobile Telecommunications Service (UMTS) Terrestrial Radio Access Network (UTRAN), an eNB using the LTE protocol for the Evolved UTRAN (E-UTRAN), or an eNB using the Bluetooth protocol for WLAN. Beacon. For example, in a 4G Evolved Packet System (EPS) providing LTE radio access to UE 105, the RAN may include an E-UTRAN, which may include base stations including eNBs supporting LTE radio access. The core network for the EPS may include an Evolved Packet Core (EPC). The EPS may then include an E-UTRAN plus an EPC, where the E-UTRAN corresponds to... Figure 2 The NG-RAN 235 and EPC correspond to 5G CN 240. The methods and techniques described herein for UE 105 positioning using common or general positioning procedures can be applied to other such networks.

[0040] gNB 210 and ng-eNB 214 can communicate with AMF 215, which provides positioning functionality, and communicate with LMF 220. AMF 215 can support the mobility of UE 105, including cell changes and handovers from the access node of the first RAT (e.g., gNB 210, ng-eNB 214, or WLAN 216) to the access node of the second RAT (e.g., gNB 210, ng-eNB 214, or WLAN 216). AMF 215 can also participate in supporting signaling connections to UE 105 and may support data and voice bearers for UE 105. LMF 220 can support UE 105's positioning when UE 105 accesses NG-RAN 235 or WLAN 216, and can support positioning procedures and methods, including UE-assisted / UE-based and / or network-based procedures / methods (e.g., Assisted GNSS (A-GNSS), Observed Time Difference of Arrival (OTDOA), Real-Time Kinematics (RTK), Precise Point Positioning (PPP), Differential GNSS (DGNSS), Enhanced Cell Identifier (ECID), Angle of Arrival (AOA), Angle of Departure (AOD), WLAN positioning, and / or other positioning procedures and methods). LMF 220 can also handle UE 105's location service requests, such as those received from AMF 215 or GMLC 225. LMF 220 can connect to AMF 215 and / or GMLC 225. LMF 220 may be referred to by other names, such as Location Manager (LM), Location Function (LF), Commercial LMF (CLMF), or Value-Added LMF (VLMF). In some embodiments, nodes / systems implementing LMF 220 may additionally or alternatively implement other types of location support modules, such as Evolved Serving Mobility Location Center (E-SMLC) or Serving Location Protocol (SLP). It should be noted that in some embodiments, at least a portion of the positioning functionality (including UE location determination) may be performed at UE 105 (e.g., by processing downlink PRS (DL-PRS) signals transmitted by radio nodes such as gNB 210, ng-eNB 214, and / or WLAN 216, and / or using auxiliary data, for example, provided to UE 105 by LMF 220).

[0041] The Gateway Mobile Location Center (GMLC) 225 can support location requests from the UE 105 received from the external client 230, and can forward such location requests to the AMF 215 for forwarding to the LMF 220, or can forward the location requests directly to the LMF 220. A location response from the LMF 220 (e.g., containing a location estimate for the UE 105) can similarly be returned to the GMLC 225 directly or via the AMF 215, and the GMLC 225 can then return the location response (e.g., containing a location estimate) to the external client 230. Figure 2 The image shows the GMLC 225 connected to both the AMF 215 and LMF 220, although in some implementations the 5G CN 240 may support only one of these connections.

[0042] like Figure 2 As further illustrated, the LMF 220 can communicate with the gNB 210 and / or the ng-eNB 214 using the LPPa protocol. The LPPa protocol in NR can be the same as, similar to, or an extension of the LPPa protocol in LTE (related to the LTE Positioning Protocol (LPP)), wherein LPPa messages are transmitted via the AMF 215 between the gNB 210 and the LMF 220, and / or between the ng-eNB 214 and the LMF 220. Figure 2As further illustrated, LMF 220 and UE 105 can communicate using the LPP protocol. LMF 220 and UE 105 can also communicate using the LPP protocol, or alternatively, they can communicate using the LPP protocol. Here, LPP messages can be transmitted between UE 105 and LMF 220 via the service gNB 210-1 or service ng-eNB 214 of AMF 215 and UE 105. For example, LPP and / or LPP messages can be transmitted between LMF 220 and AMF 215 using service-based operations (e.g., based on Hypertext Transfer Protocol (HTTP)) and can be transmitted between AMF 215 and UE 105 using the 5G NAS protocol. The LPP and / or LPP protocol can support UE 105 positioning using UE-assisted and / or UE-based positioning methods (e.g., A-GNSS, RTK, OTDOA, and / or Enhanced Cell ID (ECID)). The LPPa protocol can be used to support the location of UE 105 using network-based location methods (such as ECID) (e.g., when used with measurements obtained from gNB 210 or ng-eNB 214) and / or can be used by LMF 220 to obtain location-related information from gNB 210 and / or ng-eNB 214 (e.g., defining parameters from DL-PRS transmissions from gNB 210 and / or ng-eNB 214).

[0043] When UE 105 accesses WLAN 216, LMF 220 can use LPPa and / or LPP to obtain the location of UE 105 in a manner similar to that described above when UE 105 accesses gNB 210 or ng-eNB 214. Therefore, LPPa messages can be transmitted between WLAN 216 and LMF 220 via AMF 215 and N3IWF 250 to support network-based positioning of UE 105 and / or to transmit other location information from WLAN 216 to LMF 220. Alternatively, LPPa messages can be transmitted between N3IWF 250 and LMF 220 via AMF 215 to support network-based positioning of UE 105 based on location-related information and / or location measurements transmitted from N3IWF 250 to LMF 220 using LPPa, which is known or accessible to N3IWF 250. Similarly, LPP and / or LPP messages can be transmitted between UE 105 and LMF 220 via AMF 215, N3IWF 250 and UE 105’s serving WLAN 216 to support UE-assisted or UE-based positioning of UE 105 by LMF 220.

[0044] In the case of the UE-assisted positioning method, UE 105 can obtain position measurements and send the measurements to LS (e.g., LMF 220) to calculate the position estimate of UE 105. Position measurements may include one or more of the following for one or more access points: Received Signal Strength Indication (RSSI), Round-Trip Time (RTT), Reference Received Power (RSRP), Reference Received Quality (RSRQ), Time of Arrival (TOA), Angle of Arrival (AOA), Differential AoA (DAOA), Angle of Departure (AOD), or Timing Advance (TA). Position measurements may also include or replace measurements from RAT-independent positioning methods, such as GNSS (e.g., GNSS pseudorange, GNSS code phase, and / or GNSS carrier phase of satellite 110), WLAN, etc. In the case of a UE-based positioning method, UE 105 can obtain location measurements (e.g., which may be the same as or similar to the location measurements in a UE-assisted positioning method), and can also calculate the location of UE 105 (e.g., by means of auxiliary data received from an LS such as LMF 220 or auxiliary data broadcast by gNB 210, ng-eNB 214, or WLAN 216). In the case of a network-based positioning method, one or more base stations (e.g., gNB 210 and / or ng-eNB 214), one or more APs (e.g., in WLAN 216), or N3IWF 250 can obtain location measurements of signals transmitted by UE 105 (e.g., measurements of RSSI, RTT, RSRP, RSRQ, AOA, or TOA), and / or in the case of N3IWF 250, can receive measurements obtained by UE 105 or by APs in WLAN 216, and can send these measurements to an LS (e.g., LMF 220) to calculate a location estimate for UE 105.

[0045] In the 5G NR positioning system 200, some location measurements (e.g., AOA, AOD, TOA) performed by the UE 105 can use RF reference signals received from base stations (e.g., gNB 210 and ng-eNB 214). Such signals may include PRS (as previously described), cell-specific reference signals (CRS), channel state information reference signals (CSI-RS), synchronization signals (e.g., synchronization signal blocks (SSBs)), etc. Furthermore, signals can be transmitted in a Tx beam (e.g., using beamforming techniques), which can affect angle measurements (e.g., AOD).

[0046] The information provided by gNB 210 and / or ng-eNB 214 to LMF 220 using the New Radio Positioning Protocol (NRPPa) may include timing and configuration information for PRS transmission, as well as location coordinates. LMF 220 may then provide some or all of this information as supplementary data in LPP messages to UE105 via NG-RAN 235 and 5G core network (CN) 240.

[0047] Depending on the required functionality, the LPP message sent from LMF 220 to UE 105 can instruct UE 105 to do any of a variety of things. For example, the LPP message may contain instructions for UE 105 to obtain measurements of GNSS (or A-GNSS), WLAN, OTDOA, and / or ECID (or some other positioning method). In the case of OTDOA, the LPP message may instruct UE 105 to obtain one or more measurements (e.g., Reference Signal Time Difference (RSTD) measurements) of PRS signals transmitted in a specific cell supported by a specific gNB 210 and / or ng-eNB 214 (or supported by some other type of base station such as eNB or Wi-Fi AP). RSTD measurements may include the time difference of arrival at UE 105 of a signal (e.g., a PRS signal) transmitted or broadcast by one gNB 210 and a similar signal transmitted by another gNB 210. UE 105 can send measurements back to LMF 220 via service gNB210-1 (or service ng-eNB 214) and AMF 215 in an LPP message (e.g., within a 5G NAS message).

[0048] As previously described, while communication system 200 is described in relation to 5G technology, communication system 200 can be implemented to support other communication technologies (e.g., GSM, WCDMA, LTE, etc.) used to support and interact with mobile devices such as UE 105 (e.g., to implement voice, data, location, and other functions). In some such embodiments, 5G core network (CN) 240 can be configured to control different air interfaces. For example, in some implementations, both NG-RAN 235 and 5G core network (CN) 240 can be replaced by other RANs and other core networks. For example, in EPS, NG-RAN 235 can be replaced by E-UTRAN containing eNB, and 5G CN 240 can be replaced by EPC containing a Mobility Management Entity (MME) replacing AMF 115, an E-SMLC replacing LMF 220, and a GMLC possibly similar to GMLC 225. In such EPS, the E-SMLC can use LPPa instead of NRPPa to send and receive location information from the eNB in ​​the E-UTRAN, and LPP can be used to support the positioning of UE 105. In these other embodiments, the general positioning procedures and methods for UE 105 can be supported in a manner similar to that described herein for 5G networks, except that the functions and procedures described herein for gNB 210, ng-eNB 214, AMF 215, and LMF 220 can be applied alternatively to other network elements, such as eNB, Wi-FiAP, MME, and E-SMLC, in some cases.

[0049] To support certain positioning methods (such as OTDOA and the transmission of PRS or other signals used in positioning in UE 105), base stations can be synchronized. In a synchronized network, the transmission timing of gNB 210s can be synchronized such that the transmission time of each gNB 210 is the same as that of every other gNB 210, achieving a high level of precision—e.g., 50 nanoseconds or less. Alternatively, gNB 210s can be synchronized at the radio frame or subframe level, such that each gNB 210 transmits radio frames or subframes for the same duration as every other gNB 210 (e.g., such that each gNB 210 starts and finishes transmitting radio frames or subframes at almost exactly the same time as every other gNB 210), but it is not necessary to maintain the same counter or numbering for the radio frames or subframes. For example, while one gNB 210 is transmitting a subframe or radio frame with a counter or number of zero (which may be the first radio frame or subframe in a sequence of periodically repeating radio frames or subframes), another gNB 210 may be transmitting a radio frame or subframe with a different number or counter (e.g., one, ten, one hundred, etc.).

[0050] Synchronization of transmission timing for the ng-eNB 214 in NG-RAN 235 can be supported in a manner similar to that of the gNBs 210, although the ng-eNB 214 may not always be synchronized with the gNB 210 because the ng-eNB 214 typically uses a different frequency than the gNB 210 (to avoid interference). Synchronization between the gNB 210 and the ng-eNB 214 can be achieved using a GPS or GNSS receiver in each gNB 210 and ng-eNB 214, or by other means (e.g., using the IEEE 1588 Precision Time Protocol).

[0051] Figure 3A diagram illustrating 5G NR spectrum and BWP concepts is shown. At a high level, NR defines a Frequency Range (FR). In various embodiments, two defined frequency ranges exist. FR1 is from 410MHz to 7.125GHz. FR2 is from 24.25GHz to 52.6GHz. The 3GPP standard defines an operating band 310 within each FR. The operating band 310 is a band associated with a set of radio frequency (RF) requirements. The bandwidth of different operating bands 310 can range from a few MHz to a few GHz. Operators are allocated different amounts of spectrum within the operating bands 310. 5G NR technology supports a channel bandwidth range from 5 to 400MHz, where channel bandwidth 312 refers to the bandwidth of the NR carrier. Base stations and UEs can support different channel bandwidths. Cell-specific bandwidth 314 can be matched with the carrier's channel bandwidth 312. In some cases, UE bandwidth 316 can be more restricted than cell-specific bandwidth 314. The UE can receive information about the cell's channel bandwidth 312 and the location and width of the BWP 318.

[0052] BWP 318 is a subset or part of the total carrier bandwidth 312. BWP 318 forms a contiguous set of Common Resource Blocks (CRBs) within the full carrier bandwidth 312. A UE can configure up to four downlink BWPs and up to four uplink BWPs for each serving cell. Due to UE battery consumption, on an active serving cell, only one downlink BWP and only one uplink BWP are active at any given time. The active BWP defines the UE's operating bandwidth within the cell's operating bandwidth. Inactive BWPs are deactivated and do not transmit or receive data. For Time Division Duplex (TDD), a pair of BWPs (the active UL BWP and the active DL BWP) have the same center frequency. When the desired BWP is inactive, the network can dynamically switch the UE to the desired BWP.

[0053] LTE's maximum carrier bandwidth is significantly smaller than NR's (20MHz vs 400MHz). If an NR UE scans the full carrier bandwidth (e.g., 400MHz), it may consume an undesirable amount of power. Furthermore, while NR supports multiple UE types and capabilities, not all devices can receive the full carrier bandwidth. With this in mind, the use of a BWP reduces UE power consumption for UEs capable of receiving the maximum carrier bandwidth. For example, a UE can be configured to use a BWP with a wider bandwidth during periods of heavy data transmission, while remaining on a BWP with a narrower bandwidth during periods of low data activity.

[0054] The UE receives the Physical Downlink Control Channel (PDCCH) and Physical Downlink Shared Channel (PDSCH) in the DL BWP according to the subcarrier spacing (SCS) and cyclic prefix (CP) length configured for the DL BWP. The UE transmits the Physical Uplink Control Channel (PUCCH) and Physical Uplink Shared Channel (PUSCH) in the UL BWP according to the SCS and CP length configured for the UL BWP. For each serving cell, the network configures at least one initial downlink BWP and one (if the serving cell is configured with an uplink) or two (if using a Supplementary Uplink (SUL)) initial uplink BWPs. Additionally, the network can configure additional uplink and downlink BWPs for the serving cell. For the primary cell (PCell), the initial BWP is the BWP used for initial access (i.e., for initial access), and the UE uses the initial BWP detected from system information until it receives UE configuration in the cell. For the secondary cell (SCell), the initial BWP is the BWP configured for the UE to operate first when the SCell is activated.

[0055] Before Radio Resource Control (RRC) connection establishment, the initial downlink (DL) and uplink (UL) BWPs are used at least for initial access. The initial BWP is indexed 0 and may be referred to as BWP#0. During initial access, the UE performs cell search based on the Synchronization Signal Block (SSB), which consists of the Primary Synchronization Signal (PSS), Secondary Synchronization Signal (SSS), and Physical Broadcast Channel (PBCH). To access the system, the UE reads System Information Block 1 (SIB1), which carries information to terminate the initial downlink (DL) / uplink (UL) BWP configuration. SIB1 can be transmitted on the PDSCH and can be scheduled by the downlink control information (DCI) on the PDCCH using the control resource set (CORESET#0) with index 0.

[0056] Before reading SIB1, the UE's initial DL BWP has the same frequency range and parameter set as CORESET#0. After reading SIB1, the UE follows the initial downlink (DL) / uplink (UL) BWP configuration in SIB1 and uses them to perform random access procedures to request the establishment of a radio communication channel (RCC) connection. The network should configure the frequency domain location and bandwidth of the initial DL BWP in SIB1 such that the initial DL BWP encompasses the entire CORESET#0 in the frequency domain.

[0057] The first activated DL and UL BWP can be configured for a special cell (SpCell) or a secondary cell (SCell). In the primary cell group (MCG), SpCell refers to the primary cell (PCell), in which the UE performs the connection establishment or re-establishment process.

[0058] The network can configure the UE using a BWP inactivity timer. This timer indicates that the UE has not scheduled transmission and reception for a period of time while the BWP is active. After the allocated time (e.g., 3 milliseconds to 2.56 seconds) expires, the UE can switch its active BWP to the default BWP to save power. The default BWP can be configured to save power.

[0059] The UE can be provided by the default DL BWP in the configured DL BWPs. If the network does not configure a default DL BWP, the default DL BWP is the initial DL BWP. The network configures a default downlink BWP-Id (defaultDownlinkBWP-Id), which is a BWP ID among the already configured downlink BWPs. The UE will switch to this default downlink BWP when a certain amount of inactivity occurs on the currently active downlink BWP. The amount of inactivity is controlled by the RRC using the timer field bwp-InactivityTimer, which ranges from 3ms to 2.56 seconds. After this timer expires, the UE falls back to the default downlink BWP (if configured). These fields are mandatory for the SCell when added. When configured, these fields contain the IDs of the downlink / uplink BWPs to be used when the SCell's Media Access Control (MAC) is activated.

[0060] The serving cell's BWP handover process is used to simultaneously activate an inactive BWP and deactivate an active BWP. In frequency domain duplex (FDD), downlink and uplink can handover BWPs independently, but for TDD, downlink and uplink should handover BWPs simultaneously.

[0061] In some embodiments, the network may use RRC (re)configuration to apply BWP handover. As part of the first activated BWP portion, the network includes a first activated downlink BWP-Id (firstActiveDownlinkBWP-Id) and / or a first activated uplink BWP-Id (firstActiveUplinkBWP-Id) for SpCell or SCell in the RRC (re)configuration. Upon receiving the RRC (re)configuration for firstActiveDownlinkBWP-Id and / or firstActiveUplinkBWP-Id for SpCell, the UE activates the downlink BWP and / or uplink BWP indicated by firstActiveDownlinkBWP-Id and / or firstActiveUplinkBWP-Id, respectively. For SCell, the UE does not immediately activate the downlink BWP and / or uplink BWP after receiving the Radio Resource Control (RRC) reconfiguration, but activates the corresponding BWP when the SCell is activated. If the network does not wish to perform a BWP handover, the network does not include the fields firstActiveDownlinkBWP-Id / firstActiveUplinkBWP-Id in the RRC (re)configuration. BWP handover can be controlled by the Physical Downlink Control Channel (PDCCH), which indicates downlink allocation or uplink grant.

[0062] The bandwidth portion indicator indicates the BWP on which the frequency resources provided by this DCI reside. If this field is configured, it can be 1 or 2 bits, depending on the number of uplink (UL) / downlink (DL) BWPs configured by the RRC (excluding the initial uplink (UL) / downlink (DL) BWPs). If the BWP indicator field in DCI format 0_1 ​​indicates that the ULBWP is different from the currently active UL BWP, the UE should set the active UL BWP to the UL BWP indicated by this field in DCI format 0_1. If the BWP indicator field in DCI format 1_1 indicates that the DL BWP is different from the currently active DL BWP, the UE should set the active DL BWP to the DL BWP indicated by this field in DCI format 1_1. If the UE does not support changes to the active BWP via DCI, the UE ignores the bit field bandwidth portion indicator.

[0063] The network can configure an inactivity timer (bwp-InactivityTimer) to switch the active downlink BWP after an inactivity period specified by the timer field bwp-InactivityTimer. The expiration of the inactivity timer associated with the cell switches the active BWP to the default BWP configured by the network (if configured). If no default downlink BWP is configured, the handover occurs to the initial downlink BWP. The value of bwp-InactivityTimer ranges from 3 ms to 2.56 seconds. When the network releases the timer configuration, the UE stops the timer without switching to the default BWP. Note that the inactivity timer is used to switch only the downlink BWP, not the uplink BWP.

[0064] As previously mentioned, the location of UE 105 can be determined using measurements of RF signals transmitted from multiple base stations by the UE via multiple BWPs. Figure 4 The document provides a basic description of how different base stations can be used.

[0065] Figure 4 Aspects of an example 5G NR wireless network 400 are illustrated. The wireless network 400 may include several base stations 410 (shown as base station 410a, base station 410b, base station 410c, and base station 410d). A base station is an entity that communicates with UE 105 and may also be referred to as a base station, NR base station, Node B, gNB, 5G Node B (NB), access point, Transmit / Receive Point (TRP), etc. Each base station can provide communication coverage for a specific geographic area. In 3GPP, depending on the context in which the term is used, the term "cell" may refer to the coverage area of ​​a base station (shown as 420a, 420b, 420c, and 420d) and / or the base stations serving that coverage area (shown as 410a, 410b, 410c, and 410d).

[0066] Base stations can provide communication coverage for macro cells, pico cells, femtocells, and / or other types of cells. Macro cells can cover a relatively large geographic area (e.g., a radius of several kilometers) and can allow unrestricted access for UEs with service subscriptions. Pico cells can cover a relatively small geographic area and can allow unrestricted access for UEs with service subscriptions. Femtocells can cover a relatively small geographic area (e.g., a home) and can allow restricted access for UEs associated with the femtocell (e.g., UEs in a Closed Subscriber Group (CSG)). A base station used for a macro cell can be referred to as a macro BS. A base station used for a pico cell can be referred to as a pico BS. A base station used for a femtocell can be referred to as a femtocell BS or a home BS. The terms “eNB,” “base station,” “BS,” “NR BS,” “gNB,” “TRP,” “AP,” “Node B,” “5G NB,” and “cell” are used interchangeably herein.

[0067] In some examples, the cell does not necessarily have to be stationary; the geographical area of ​​the cell can move depending on the location of the mobile base station. In some examples, the base stations can be interconnected and / or connected to one or more other base stations or network nodes (not shown) in the access network 400 via various types of backhaul interfaces (e.g., direct physical connection, virtual network, and / or similar methods using any suitable transport network).

[0068] At base station 120, the transmitting processor can receive data from one or more UEs 105 from a data source, select one or more modulation and decoding schemes (MCS) for each UE 105 based at least in part on the Channel Quality Indicator (CQI) received from the UE 105, process (e.g., encode and modulate) the data of each UE 105 based at least in part on the MCS selected for the UE 105, and provide data symbols for all UEs 105. The transmitting processor (not shown) can also process system information (e.g., for Semi-Static Resource Partitioning Information (SRPI), etc.) and control information (e.g., CQI requests, grants, upper-layer signaling, etc.), and provide overhead symbols and control symbols. The transmitting processor can also generate reference symbols for reference signals 430 (e.g., CRS) and synchronization signals (e.g., primary synchronization signal (PSS) and secondary synchronization signal (SSS)).

[0069] In a 5G NR system, the base station can transmit PSS and SSS at the center of the system bandwidth for each cell supported by the base station on the downlink. PSS and SSS can be used by the UE for cell search and acquisition. The base station can transmit CRS across the system bandwidth for each cell supported by the base station. CRS can be transmitted within certain symbol periods of each subframe and can be used by the UE to perform channel estimation, channel quality measurement, and / or other functions. The base station can also transmit the Physical Broadcast Channel (PBCH) in symbol periods 0 to 3 of slot 1 of certain radio frames. The PBCH can carry some system information. The base station can transmit other system information, such as System Information Blocks (SIBs), on the Physical Downlink Shared Channel (PDSCH) of certain subframes. The base station can transmit control information / data on the Physical Downlink Control Channel (PDCCH) during the first B symbol period of a subframe, where B can be configurable for each subframe. The base station can transmit traffic data and / or other data on the PDSCH during the remaining symbol periods of each subframe.

[0070] UE 105 can receive reference signal 430, displayed as reference signals 430a, 430b, and 430c, which are transmitted from base stations 410a, 410b, and 410c. For example... Figure 4 As depicted, UE 105 is situated at the boundaries of three distinct cells (specifically 420a, 420b, and 420c). As UE 105 moves, it can transition from one cell to another. The reference signal 430 for each cell 420a, 420b, and 420c can operate at different frequencies and bandwidths. As previously mentioned, UE 105 can use up to four specified BWP318s (such as...). Figure 3 The UE 105 operates using the BWP configuration shown in the diagram. For example, reference signals 430a and 430b can operate at frequencies within BWP#1 and reference signal 430c, and also at frequencies outside the spectrum of BWP#1 within BWP#2. To receive reference signal 430c from base station 410c, the transceiver of UE 105 may need to retune to BWP#2, which may occur during a Measurement Gaps (MG). An MG is the duration for which the UE suspends communication with the serving cell to measure inter-frequency neighbors or other RAT neighbors. MGs can be used if UE 105 is requested to perform measurements that cannot be completed while UE 105 is tuned to the current serving cell. MGs impact performance because they interrupt uplink and downlink data transmission. As previously mentioned, such interruptions result in unwanted latency in communication.

[0071] In the context of 5G NR, in addition to inter-frequency measurements, intra-frequency measurements may also be required using MG (Meaning Gauge). For example, within a specific frequency range (e.g., FR 1), UE 105 can be expected to use analog receiver beamforming. The UE beam can typically be pointed towards the serving cell, while neighbor cell measurements will require the beam to be pointed towards the neighbor cell. MG may be needed when the UE redirects its beam and temporarily suspends transmission / reception with the serving cell. UE 105 may also be configured with an active BWP (Broadcast Width Potential), which does not contain intra-frequency synchronization signal (SS) and physical broadcast channel (PBCH) blocks. In this case, UE 105 may need to retune its transceiver to receive intra-frequency SS / PBCH blocks. This scenario is similar to retuning for inter-frequency measurements.

[0072] According to the embodiments described herein, the UE can use auxiliary data and / or other information to determine the frequency domain location (frequency and bandwidth) of a reference signal measured within a frequency range, thereby determining a “preferred BWP” that minimizes the UE’s retuning, and indicating the preferred BWP to the base station. The base station and / or network can then determine whether to use the preferred BWP, if possible, for session positioning. Figure 5 An example illustrating how this happens is shown.

[0073] Figure 5 A simplified information exchange 500 between a UE 105 and a base station 505 (e.g., gNB 210) according to an embodiment is illustrated, which may occur at the beginning of a positioning session. At 510, the exchange 500 includes receiving location assistance data. The assistance data may be broadcast assistance data or dedicated assistance data. The assistance data may be received by the UE 105 (e.g., using... Figure 10 The processing unit 1010, memory 1060, wireless communication interface 1030, wireless antenna 1032, etc. shown are illustrated.

[0074] It should be noted that the terms “location assistance data,” “location-assisted data,” and “assistance data” (or “AD”) are used synonymously herein to refer to data that can be provided to the UE via broadcast (e.g., RRC from a base station) or through point-to-point components (e.g., from an LS) to assist the mobile device in obtaining location measurements (also known as positioning measurements) and / or calculating location estimates from positioning measurements. Therefore, assistance data can include location information of nearby base stations, scheduling of reference signals transmitted by base stations, etc. Thus, using assistance data, the UE can be able to determine details (e.g., scheduling, frequency, etc.) of reference signals transmitted by nearby base stations to further determine a preferred BWP that helps maximize the amount of received reference signal without requiring MG retuning. The determination of which base stations are nearby (e.g., within a threshold distance of the UE) can be based on, for example, the approximate location of the UE (e.g., based on information provided by the UE, the location / coverage area of ​​the serving base station, etc.), broadcast signals received from nearby base stations, or both.

[0075] As previously mentioned, auxiliary data can be provided via broadcast and / or point-to-point communication between the UE and the LS. In the case of 3GPP control plane locations, the LS can be an Enhanced Serving Mobile Location Center (E-SMLC) for LTE access, a Standalone SMLC (SAS) for Universal Mobile Telecommunications Service (UMTS) access, a Serving Mobile Location Center (SMLC) for GSM access, or a Location Management Function (LMF) for NR access. In the case of an OMA SUPL location, the LS can be a SUPL location platform (SLP) that can act as any of the following: (i) a home SLP (H-SLP) if it is in or associated with the UE’s home network, or if it provides the UE with a permanent subscription for location services; (ii) a discovery SLP (D-SLP) if it is in or associated with another (non-home) network, or if it is not associated with any network; (iii) an emergency SLP (E-SLP) if it supports the location of an emergency call initiated by the UE; or (iv) an access SLP (V-SLP) if it is in or associated with the serving network or the UE’s current local area.

[0076] The LS and base station 505 can exchange messages so that the LS (i) obtains location measurements of a specific UE from the base station 505, or (ii) obtains location information unrelated to a specific UE from the base station 505, such as the location coordinates of the antenna of the base station 505, the cells supported by the base station 505 (e.g., cell identity), the cell timing of the base station 505, and / or parameters of signals transmitted by the base station 505 (e.g., PRS signals). In the case of LTE access, the LPP A (LPPa) protocol defined in 3GPP TS 36.455 can be used to transmit such information between the base station 505 as an eNodeB and the LS as an E-SMLC.

[0077] At 520, process 500 may include using location-aided data to determine one or more cells within a threshold distance of the location of UE 105. Here, the location of UE 105 may be an approximate location of the UE determined by UE 105 and / or the network (before the location session). This may be based on previous location determination, the location of the serving base station (e.g., base station 505), or its coverage area, etc. The determination of nearby base stations (within the threshold distance) may be performed by UE 105, and for example, based on a comparison of the approximate location of UE 105 with a cellular coverage area map. For example, for such Figure 4 The UE 105 shown may have one or more nearby cells (within a threshold distance) including cells 420a, 420b, and 420c. While cell 420d is shown, it may not necessarily be within the threshold distance of the depicted UE 105. Therefore, determining whether a cell is within the threshold distance may include determining whether the UE 105 is within the coverage area of ​​base station 505. A cellular coverage map can inform the UE 105 of one or more cells within a threshold distance of the UE 105's location. According to some embodiments, the UE 105 (e.g., using...) Figure 10 The processing unit 1010, memory 1060, wireless communication interface 1030, wireless antenna 1032, etc. shown can use location-aided data to determine one or more cells within a threshold distance of the location of UE 105, as described above.

[0078] At 530, process 500 may include determining multiple reference signals associated with one or more cells. As described above, this may be based on auxiliary data received from base station 505 at action 510. That is, using broadcast and / or dedicated auxiliary data, UE 105 may determine which nearby cells will broadcast reference signals (which may be of different types, such as PRS, SSB, etc.) during the time period of reference signal measurement during the positioning session. According to some embodiments, UE 105 (e.g., using...) Figure 10The processing unit 1010, memory 1060, wireless communication interface 1030, wireless antenna 1032, etc. shown can determine multiple reference signals associated with one or more cells, as described above.

[0079] At 540, process 500 may include using radio receiver configuration information to determine the associated frequency and bandwidth of each of a plurality of reference signals associated with one or more cells. For example, an RRC may provide the frequency and bandwidth of each of the reference signals associated with one or more cells. For the example above, cells 420a, 420b, and 420c are determined to be within a threshold distance of UE 105. Therefore, UE 105 may use information from one or more RRC messages to determine the characteristics (e.g., frequency and bandwidth) of the reference signals for cells 420a, 420b, and 420c. According to some embodiments, UE 105 (e.g., using information such as...) Figure 10 The processing unit 1010, memory 1060, wireless communication interface 1030, wireless antenna 1032, etc. shown can use radio receiver configuration information to determine the associated frequency and bandwidth of each of a plurality of reference signals associated with one or more cells, as described above.

[0080] At 550, process 500 may include determining a preferred BWP among a plurality of BWPs based in part on determined frequencies and bandwidths of a plurality of reference signals, wherein the preferred BWP is one of the plurality of BWPs in which the majority of positioning measurements occur without retuning the transceiver of UE 105. Using these techniques, UE 105 may indicate the preferred BWP at the beginning of a positioning session. Once the positioning session ends, the BWP may be changed to the preferred BWP based on other considerations or the default BWP. For example, UE 105 (e.g., using...) Figure 10 The processing unit 1010, memory 1060, wireless communication interface 1030, wireless antenna 1032, etc. shown can determine the preferred BWP among a plurality of BWPs, partly based on the determined frequencies and bandwidths of a plurality of reference signals, as described above. In some embodiments, the preferred BWP is one of a plurality of BWPs, wherein the maximum number of measurements located in that one BWP can occur without retuning the transceiver of UE 105. As described above, this can lead to increased spectral efficiency and / or increased accuracy.

[0081] At 570, UE 105 can send the preferred BWP to base station 505. Furthermore, a new "Term" can be defined as a "Location Request," which specifies the reason for the BWP preference. The preferred BWP can be stored in the memory of base station 505.

[0082] Figure 6The diagram illustrates the 5G NR spectrum and BWP concept. Figure 6 A portion of the spectrum 600 with a total bandwidth of 1.2 GHz is shown. This portion of the spectrum 600 includes an absolute maximum radio frequency value 610 and an absolute minimum radio frequency value 620. 5G NR can currently support up to 16 consecutive and non-consecutive component carriers (CCs) and can aggregate new 5G frequency bands into a spectrum up to approximately 1 GHz. Dual connectivity allows the UE to simultaneously transmit and receive data from multiple CCs in two cell groups (i.e., the primary eNB and the secondary eNB). Figure 6 The first component carrier (CC0) and the second component carrier (CC1) are shown. Each component carrier has a bandwidth of 800 MHz.

[0083] The first component carrier (CC0) can be configured with four BWPs (BWP0 630, BWP1 632, BWP2 634, and BWP3 636). For example... Figure 6 As shown, the bandwidth of BWP3 636 overlaps entirely with the bandwidths of BWP0 630, BWP1 632, and BWP2 634. BWP0 partially overlaps with the bandwidth of BWP1. BWP1 632 partially overlaps with BWP2 634. BWP0 630 does not overlap with BWP2 634 at all. Therefore, if BWP2 634 is the active BWP for the UE, and the UE needs to transmit or receive signals in BWP0 630, the transceiver will need to be retuned. The first component carrier (CC0) also includes a synchronization signal block (SSB) 638. The synchronization signal (SS) and PBCH are included in the SSB. The SS includes the primary synchronization signal (PSS) and the secondary synchronization signal (SSS). The physical broadcast channel (PBCH) includes the demodulation reference signal (DRMS) and physical broadcast channel data.

[0084] The second component carrier (CC0) can be configured with four BWPs (BWP0 640, BWP1 642, BWP2 644, and BWP3 646). For example... Figure 6 As shown, the bandwidth of BWP3 646 overlaps entirely with the bandwidths of BWP0 640, BWP1 642, and BWP2 644. BWP0 640 partially overlaps with the bandwidth of BWP1 642. BWP0 640 partially overlaps with BWP2 644. BWP1 642 does not overlap with BWP2 644 at all. Therefore, if BWP1 642 is the active BWP for the UE, and the UE needs to transmit or receive signals in BWP2 644, the transceiver will need to be retuned. The first component carrier (CC0) also includes a synchronization signal block (SSB) 648.

[0085] Considering this example, the embodiments described herein for determining the preferred BWP can allow the UE to determine the preferred BWP based on a reference signal quantity that the UE can effectively measure, in the manner described above, without requiring retuning of the RF circuitry or the use of the MG. The UE can also provide an indication of the preferred BWP to the network, enabling the network to consider the preferred BWP when a specified BWP is used in a positioning session.

[0086] Figure 7 This is a flowchart of an example method 700 for determining a preferred BWP for a location session at a mobile device, according to an embodiment. The mobile device may correspond to a UE, as described above. Figure 1-6 The relevant embodiments are described. Method 700 is an embodiment that implies the above-described related Figure 3-6 The relevant description is for determining the preferred BWP technology. Furthermore, it can be considered as a method for implementation. Figure 5 The methods and processes are shown in the diagram. In some implementations, Figure 7 One or more blocks can be executed by UE 105, another device, or a group of devices that are separate from or include UE 105.

[0087] At block 710, method 700 includes determining the frequency and bandwidth of each of a plurality of reference signals to be transmitted by one or more base stations during a positioning session, based at least in part on auxiliary data received by the mobile device. As described above, the auxiliary data may provide the mobile device with information about the reference signals transmitted by one or more base stations corresponding to one or more nearby cells. This information may include, for example, information about the signal type, frequency, scheduling, etc., of the reference signals. The auxiliary data may be received from the LS, the serving base station of the mobile device, or both. Furthermore, the auxiliary data may include dedicated auxiliary data (specific to the mobile device), broadcast auxiliary data (sent to multiple devices), or both. The plurality of reference signals may include PRS, TRS, or SSB, or any combination thereof. Components for performing the function at block 710 may include, for example, Figure 10 The processing unit 1010, memory 1060, wireless communication interface 1030, wireless antenna 1032 and / or other components of the mobile device shown.

[0088] At block 720, method 700 includes determining the frequency and bandwidth of each of a plurality of BWPs based at least in part on RRC information received by the mobile device. Each reference signal may have a different frequency and bandwidth. The frequencies and bandwidths of some reference signals may not fall within the active BWP of the mobile device. Furthermore, different reference signals may fall within different BWPs. Components for performing the function at block 720 may include, for example, Figure 10The processing unit 1010, memory 1060, wireless communication interface 1030, wireless antenna 1032 and / or other components of the mobile device shown.

[0089] At block 730, method 700 includes determining a preferred BWP based at least in part on the frequency and bandwidth of multiple BWPs and multiple reference signals. Based on this information, the mobile device can identify which reference signals fall on which BWPs. As mentioned above, a larger number of measurements can lead to more accurate and / or more efficient positioning of the mobile device, and therefore, the preferred BWP can be determined based on this number. For example, the preferred BWP could be the BWP with the most measurements. As previously mentioned, keeping measurements within a BWP (e.g., the preferred BWP) can reduce the need for MGs, thereby improving the efficiency of the mobile device. Therefore, in method 700, the preferred BWP may include one of multiple BWPs, wherein the reference signal with the most reference signals among the multiple reference signals in that one BWP can be measured by the mobile device during the positioning session without retuning the mobile device's transceiver. In some embodiments, the preferred BWP is one of multiple BWPs in which most positioning measurements occur without retuning the transceiver of UE 105.

[0090] When determining the preferred BWP, additional or alternative factors can be considered. Power saving can be one such factor. For example, given a similar number of reference signals in each BWP, a mobile device may prefer a BWP with a narrower bandwidth to one with a wider bandwidth because less power is required to use a BWP with a narrower bandwidth. Self-interference can be another such factor. For example, due to self-interference, a mobile device may be less sensitive to reference signals at certain frequencies, resulting in poorer positioning measurements. This can be the case, for example, when a positioning session is conducted in E-ULTRA New Radio Dual Connectivity (ENDC) or Non-Standalone (NSA) mode. Therefore, the mobile device can select a preferred BWP to minimize these reference signals. Thus, according to some embodiments of method 700, determining the preferred BWP is at least partially further based on the determination of how self-interference at the mobile device affects one or more of the plurality of reference signals. Components for performing the function at block 730 may include, for example, Figure 10 The processing unit 1010, memory 1060, wireless communication interface 1030, wireless antenna 1032 and / or other components of the mobile device shown.

[0091] At block 740, method 700 may include sending an indication of a preferred BWP to the serving base station. As described above, the serving base station may consider a preferred BWP when configuring an active BWP for use in a location session for the mobile device. Components for performing the function of block 740 may include, for example, Figure 10 The processing unit 1010, memory 1060, wireless communication interface 1030, wireless antenna 1032 and / or other components of the mobile device shown.

[0092] Method 700 may include additional implementations, such as any single implementation or any combination of implementations described below, and / or implementations combined with one or more other processes described elsewhere herein.

[0093] After the preferred BWP is sent at block 740, the mobile device may perform additional operations related to the preferred BWP depending on the required functionality. According to some embodiments, for example, the mobile device may also request the transmission of on-demand reference signals via the preferred BWP. Therefore, according to some embodiments, method 700 may further include sending a request for reference signals to the serving base station or LS after sending an indication of the preferred BWP to the serving base station, wherein the reference signals are to be transmitted using the preferred BWP. Furthermore, regardless of whether the preferred BWP is selected as the designated BWP for reference signal measurements, the mobile device may perform measurements on at least a portion of a plurality of reference signals for positioning purposes. Therefore, according to some embodiments, method 700 may further include receiving at the mobile device an indication of a configuration of a designated BWP selected at least in part based on the indication of the preferred BWP after sending an indication of the preferred BWP to the serving base station, and using the designated BWP to measure at least a portion of the plurality of reference signals. That is, in some instances, the designated BWP may actually include the preferred BWP.

[0094] In various embodiments, multiple reference signals from one or more base stations may exceed a predetermined threshold of signal strength. Process 700 may include determining whether the multiple reference signals exceed a predetermined threshold level. If the multiple reference signals exceed the predetermined threshold level, process 700 may include determining the arrival geometry of each of the multiple reference signals originating from one or more base stations. Process 700 may include determining a preferred BWP among a plurality of BWPs based at least in part on the arrival geometry of the multiple reference signals. Process 700 may include determining geometry or geometry attenuation (GDOP) based at least in part on one or more base stations and corresponding beam identification signals (IDs). GDOP can be a term used in satellite navigation and geoengineering to specify error propagation as the mathematical effect of navigation satellite geometry on position measurement accuracy.

[0095] although Figure 7 An example block of process 700 is shown, but in some embodiments, process 700 may include... Figure 7The blocks described in the diagram are compared to additional blocks, fewer blocks, different blocks, or blocks with different arrangements. Alternatively or additionally, two or more blocks in process 700 can be executed in parallel.

[0096] The embodiments described above enable a mobile device (e.g., a UE) to indicate to the network a preferred BWP for a positioning session. However, ultimately, it may be up to the network to decide which BWP to use. According to alternative embodiments, the mobile device may be able to tune its transceiver to optimize reference signal measurements without (or regardless of) an active BWP configured by the network.

[0097] Figure 8 A simplified information exchange between a UE 105 and multiple base stations according to an embodiment is illustrated, which allows the UE to tune its transceiver in this manner. Depending on the required functionality, Figure 8 Some or all of the operations shown can be performed before or at the start of a location session. Figure 8 The diagram shows UE 105 and three base stations (805-1, 805-2, and 805-3; collectively referred to herein as base station 805). However, it is understood that any number of base stations can be used. Furthermore, although... Figure 8 The example provided illustrates UE 105 receiving auxiliary data from a base station, but the embodiment is not so limited. Alternatively or additionally, auxiliary data may be received from a single base station (e.g., the serving base station) and / or LS 160.

[0098] At 810, UE 105 receives auxiliary data from three base stations 805. Because this auxiliary data is received directly from base station 820, it may include broadcast auxiliary data indicating the timing, frequency, and / or other characteristics of multiple reference signals to be transmitted by base station 810. As described above, in an alternative embodiment, UE 105 may receive dedicated auxiliary data from the serving base station or LS. Using the information from the auxiliary data, UE 105 can determine the frequency and bandwidth of each reference signal. These frequencies may be stored in the memory of UE 105.

[0099] At 820, the processor of UE 105 can determine the maximum and minimum frequencies of multiple reference signals. In doing so, UE 105 can determine the receive bandwidth of the RF circuitry used to receive the multiple reference signals, either in full or at a threshold number (or percentage). These maximum and minimum frequencies and / or receive bandwidths can be stored in the memory of UE 105.

[0100] At 830, the processor of UE 105 can tune its transceiver to the receive bandwidth. This may involve tuning the transceiver away from the active BWP. In some embodiments, the receive bandwidth may be less than or equal to the carrier bandwidth that encapsulates all reference signal frequencies. Thus, during a positioning session, the transceiver may not need to retune to capture all (or at least a portion of) the multiple reference signals. UE 105 can configure or tune the RF and other hardware to tune the entire carrier BW (including all possible configured BWPs) or to an optimal BW less than or equal to the carrier BW but including all reference signals. This can be selectively done during an active positioning session to ensure that UE 105 does not need to retune, and therefore MG (Measuring Target) is not required to measure the reference signals.

[0101] Once the reference signal has been measured and / or the positioning session is complete, the UE 105 can fall back to the default mode, thereby retuning the receive RF circuitry to the active BWP.

[0102] In another implementation, the tuning is determined to be to the entire carrier BW or based on F. min and F max Determining the optimal BW can be based on the UE's current battery charging state, where if the device's battery status is above a certain threshold, the UE 105 can maintain the configuration across the entire carrier BW.

[0103] In one embodiment, this technique can be used to request a specific PRS, which is confined within a defined preferred BWP. This helps ensure that the UE 105 can accumulate a sufficient number of measurements for location determination, while also ensuring that the MG does not need to measure RS from different BWPs within the same frequency range.

[0104] Figure 9 The diagram illustrates the configuration of a transceiver for a mobile device (e.g., a UE) for processing a location session, according to an embodiment. In this embodiment, the mobile device is tuned to have a receive bandwidth sufficient to measure at least a portion of the spectrum of reference signals transmitted by one or more base stations. In some embodiments, Figure 9 One or more processing blocks can be executed by a mobile device, another device, or a group of devices that are separate from or include a mobile device. In some embodiments, a location session includes activating a location session.

[0105] At block 910, method 900 may include determining, at least in part, the frequency and bandwidth of each of a plurality of reference signals to be transmitted by one or more base stations during a positioning session, based on auxiliary data received by the mobile device. Similar to... Figure 10The function at block 710 may include auxiliary data such as dedicated auxiliary data, broadcast auxiliary data, or both. Furthermore, auxiliary data may be received from an LS, a serving base station, or both. The auxiliary data may indicate the frequency and bandwidth (and optional other characteristics) of multiple reference signals. The reference signals themselves may include PRS, TRS, or SSB, or any combination thereof. The components used to perform the function at block 910 may include, for example, Figure 10 The processing unit 1010, memory 1060, wireless communication interface 1030, wireless antenna 1032 and / or other components of the mobile device shown.

[0106] At block 920, method 900 may include determining a minimum frequency (Fmin) and a maximum frequency (Fmax) of a plurality of reference signals encapsulated for measurements during a positioning session. Depending on the characteristics of the reference signals, this may or may not conform to a specific BWP. Nevertheless, these frequencies may be used to define the receive bandwidth used during the positioning session. Components for performing the function at block 920 may include, for example, Figure 10 The processing unit 1010, memory 1060, wireless communication interface 1030, wireless antenna 1032 and / or other components of the mobile device shown.

[0107] At block 930, method 900 may include determining the receive bandwidth based at least in part on a determined minimum frequency and a determined maximum frequency. As mentioned above, the receive bandwidth is not necessarily associated with a specific BWP. However, it can be used by the mobile device to measure the entire or a threshold amount of a reference signal. In some embodiments, for example, the receive bandwidth may be less than or equal to the carrier bandwidth encapsulating multiple reference signals. Additional factors, such as battery power, accuracy requirements, etc., may be considered when determining the receive bandwidth. For example, a larger amount of available battery power may allow the mobile device to use the entire spectrum defined by the determined minimum frequency and the determined maximum frequency. Less available battery power may result in the use of a portion of the spectrum. Therefore, in an alternative embodiment of method 900, the receive bandwidth is further based at least in part on the mobile device's battery state of charge. For example, if the battery state of charge is above a threshold, the receive bandwidth may be determined to include the entire carrier bandwidth. Components for performing the function at block 930 may include, for example, Figure 10 The processing unit 1010, memory 1060, wireless communication interface 1030, wireless antenna 1032 and / or other components of the mobile device shown.

[0108] At block 940, the function includes tuning the mobile device's transceiver (e.g., the transceiver's RF circuitry) from the active BWP to the receive bandwidth used for the positioning session. Once the mobile device measures the reference signal, the transceiver's original tuning can be restored. Therefore, some embodiments of method 900 may also include tuning the mobile device's transceiver to the active bandwidth after the positioning session is completed. Components for performing the function at block 940 may include, for example, Figure 10 The processing unit 1010, memory 1060, wireless communication interface 1030, wireless antenna 1032 and / or other components of the mobile device shown.

[0109] Method 900 may include additional implementations, such as any single implementation or any combination of implementations described below, and / or implementations combined with one or more other processes described elsewhere herein.

[0110] although Figure 9 An example block of method 900 is shown, but in some implementations, method 900 may include... Figure 9 The blocks described herein may be compared to additional blocks, fewer blocks, different blocks, or blocks with different arrangements. Alternatively or additionally, two or more blocks of method 900 may be executed in parallel.

[0111] Figure 10 An embodiment of a mobile device 1000 is shown, which can perform the functions described above regarding mobile devices or UEs (e.g., with...). Figure 1-9 Used as described in the associated description. For example, mobile device 1000 can execute... Figure 7 and Figure 9 One or more of the functions of the methods shown. It should be noted that... Figure 10 This is intended only to provide a general overview of the various components, any or all of which may be used as appropriate. It may be noted that in some instances, Figure 10 The components shown can be located in a single physical device and / or distributed among various networked devices that can be placed in different physical locations. Furthermore, as previously stated, the functions of the UE described in the foregoing embodiments can be derived from… Figure 10 Performed by one or more hardware and / or software components shown in the diagram.

[0112] Mobile device 1000 is shown to include hardware elements electrically coupled (or otherwise communicable, as appropriate) via bus 1005. The hardware elements may include processing unit 1010, which may include, but is not limited to, one or more general-purpose processors, one or more special-purpose processors (e.g., digital signal processor (DSP) chips, graphics accelerator processors, application-specific integrated circuits (ASICs), etc.), and / or other processing structures or components. Figure 10As shown, depending on the required functionality, some embodiments may have a separate DSP 1020. Location determination and / or other determinations based on wireless communication may be provided in the processing unit 1010 and / or the wireless communication interface 1030 (discussed below). The mobile device 1000 may also include one or more input devices 1070, which may include, but are not limited to, a keyboard, touchscreen, touchpad, microphone, buttons, dial, switch, etc.; and one or more output devices 1015, which may include, but are not limited to, a display, light-emitting diodes (LEDs), speakers, etc.

[0113] Mobile device 1000 may also include wireless communication interface 1030, which may include, but is not limited to, modem, network card, infrared communication device, wireless communication device and / or chipset (e.g., The device 1000 can communicate with other devices described in the above embodiments, including IEEE 802.11 devices, IEEE 802.15.4 devices, Wi-Fi devices, WiMAX devices, WAN devices, and / or various cellular devices. The wireless communication interface 1030 can allow the transmission (e.g., sending and receiving) of data and signaling via, for example, an eNB, gNB, ng-eNB, access point, various base stations and / or other access node types, TRP and / or other network components, computer systems, and / or any other electronic device described herein. Communication can be performed via one or more wireless communication antennas 1032 that transmit and / or receive wireless signals 1034. According to some embodiments, the wireless communication antennas 1032 may include a plurality of discrete antennas, antenna arrays, or any combination thereof.

[0114] Depending on the required functionality, the wireless communication interface 1030 may include separate receivers and transmitters, or any combination of transceivers, transmitters, and / or receivers, to communicate with base stations (e.g., ng-eNBs and gNBs) and other terrestrial transceivers (e.g., wireless devices and access points). The mobile device 1000 may communicate with various data networks, which may include a variety of network types. For example, a wireless wide area network (WWAN) may be a CDMA network, a Time Division Multiple Access (TDMA) network, a Frequency Division Multiple Access (FDMA) network, an Orthogonal Frequency Division Multiple Access (OFDMA) network, a Single Carrier Frequency Division Multiple Access (SC-FDMA) network, a WiMax (IEEE 802.16) network, etc. A CDMA network may implement one or more RATs (e.g., Code Division Multiple Access (CDMA) 2000, WCDMA, etc.). CDMA 2000 includes the IS-95, IS-2000, and / or IS-856 standards. A TDMA network may implement GSM, Digital Advanced Mobile Phone Systems (D-AMPS), or some other RAT. OFDMA networks can employ LTE, LTE Advanced, 5G NR, 6G, etc. 5G NR, LTE, LTE Advanced, GSM, and WCDMA are all described in documents from 3GPP. Cdma2000 is described in documents from an alliance called "3rd Generation Partnership Project 2" (3GPP2). 3GPP and 3GPP2 documents are publicly available. WLAN can also be an IEEE 802.11x network, while Wireless Personal Area Networks (WPANs) can be Bluetooth networks, IEEE 802.15x, or some other type of network. The technologies described herein can also be used for any combination of WWAN, WLAN, and / or WPAN.

[0115] The mobile device 1000 may also include a sensor 1040. The sensor 1040 may include, but is not limited to, one or more inertial sensors and / or other sensors (e.g., accelerometers, gyroscopes, cameras, magnetometers, altimeters, microphones, proximity sensors, light sensors, barometers, etc.), as described herein, some of which may be used to obtain position-related measurements and / or other information.

[0116] Embodiments of the mobile device 1000 may also include a Global Navigation Satellite System (GNSS) receiver 1080, which is capable of receiving signals 1084 from one or more GNSS satellites using an antenna 1082 (which may be the same as antenna 1032). Positioning based on GNSS signal measurements can be utilized to supplement and / or incorporate the techniques described herein. The GNSS receiver 1080 can use conventional techniques to extract the location of the mobile device 1000 from GNSS satellites 110 of GNSS systems such as Global Positioning System (GPS), Galileo, Global Navigation Satellite System (GLONASS), Quasi-Zenith Satellite System (QZSS) over Japan, Indian Regional Navigation Satellite System (IRNSS) over India, BeiDou over China, etc. In addition, the GNSS receiver 1080 can be used with various augmentation systems (e.g., satellite-based augmentation systems (SBAS)) that can be associated with or otherwise enabled to be used with one or more global and / or regional navigation satellite systems, such as the Wide Area Augmentation System (WAAS), the European Geostationary Navigation Overlap Service (EGNOS), the Multifunctional Satellite Augmentation System (MSAS), and the Geographic Augmentation Navigation System (GAGAN).

[0117] The mobile device 1000 may also include and / or communicate with the memory 1060. The memory 1060 may include, but is not limited to, locally and / or network-accessible storage devices, disk drives, drive arrays, optical storage devices, solid-state storage devices (e.g., random access memory (RAM) and / or read-only memory (ROM)), which may be programmable, flash-updateable, etc. Such storage devices can be configured to implement any suitable data storage, including but not limited to various file systems, database structures, etc.

[0118] The memory 1060 of the mobile device 1000 may also include software elements ( Figure 10 (Not shown in the text) includes an operating system, device drivers, executable libraries, and / or other code (e.g., one or more applications), which may include computer programs provided by various embodiments, and / or may be designed to implement methods provided by other embodiments and / or configure systems provided by other embodiments, as described herein. By way of example only, one or more processes described with respect to the methods discussed above may be implemented as code and / or instructions in memory 1060, which may be executed by mobile device 1000 (and / or processing unit 1010 or DSP 1020 within mobile device 1000). In one aspect, this code and / or instructions may then be used to configure and / or adjust a general-purpose computer (or other device) to perform one or more operations according to the described methods.

[0119] Figure 11 An embodiment of computer system 1100 is shown, which can be utilized and / or incorporated into a communication system (e.g., Figure 1 One or more components of the Location Server (LS) 160, including various components of the 5G network (such as LMF 220, AMF215, etc.). Figure 11 Provides methods that can be performed in various other embodiments (e.g., with) Figure 1-8 A schematic diagram of an embodiment of a computer system 1100 (related to the method). It should be noted that... Figure 11 This is intended only to provide a general overview of the various components, any or all of which may be used as appropriate. Therefore, Figure 11 This roughly illustrates how the various system components are implemented in a relatively discrete or relatively more integrated manner. Furthermore, it can be noted that... Figure 11 The components shown can be located in a single device and / or distributed across a variety of networked devices that can be located in different physical or geographical locations.

[0120] Computer system 1100 is shown to include hardware elements electrically coupled (or otherwise communicable, as appropriate) via bus 1105. The hardware elements may include processing unit 1110, which may include, but is not limited to, one or more general-purpose processors, one or more special-purpose processors (e.g., digital signal processing chips, graphics accelerators, etc.), and / or other processing architectures, which may be configured to perform one or more of the methods described herein, including those with… Figure 11 The method described herein. The computer system 1100 may also include one or more input devices 1115, which may include, but are not limited to, a mouse, keyboard, camera, microphone, etc.; and one or more output devices 1120, which may include, but are not limited to, display devices, printers, etc.

[0121] Computer system 1100 may also include one or more non-transitory storage devices 1125 (and / or in communication with them), which may include, but are not limited to, locally and / or network-accessible storage devices, and / or may include, but are not limited to, disk drives, drive arrays, optical storage devices, solid-state storage devices (e.g., random access memory (RAM) and / or read-only memory (ROM)), which may be programmable, flash-updatable, etc. Such storage devices can be configured to implement any suitable data storage, including but not limited to various file systems, database structures, etc.

[0122] Computer system 1100 may also include a communication subsystem 1130, which may include support for wired communication technologies and / or wireless communication technologies (in some embodiments) managed and controlled by wireless communication interface 1133. Communication subsystem 1130 may include a modem, network interface card (wireless or wired), infrared communication device, wireless communication device, and / or chipset, etc. Communication subsystem 1130 may include one or more input and / or output communication interfaces (e.g., wireless communication interface 1133) to allow the exchange of data and signaling with networks, mobile devices, other computer systems, and / or any other electronic devices described herein. Note that the terms “mobile device” and “UE” are used interchangeably herein to refer to any mobile communication device, such as, but not limited to, mobile phones, smartphones, wearable devices, mobile computing devices (e.g., laptops, PDAs, tablets), embedded modems, and automotive and other vehicle computing devices.

[0123] In many embodiments, computer system 1100 will further include working memory 1135, which may include RAM and / or ROM devices. Software elements shown as residing within working memory 1135 may include operating system 1140, device drivers, executable libraries, and / or other code (e.g., application 1145), which may include computer programs provided by various embodiments and / or may be designed to implement methods provided by other embodiments and / or configure systems provided by other embodiments, as described herein. By way of example only, one or more processes described with respect to the methods discussed above, such as those concerning... Figure 11 The described method can be implemented as code and / or instructions stored (e.g., temporarily) in working memory 1135 and executable by a computer (and / or a processing unit within the computer, such as processing unit 1110); then, in one aspect, such code and / or instructions can be used to configure and / or adjust a general-purpose computer (or other device) to perform one or more operations according to the described method.

[0124] These instructions and / or code sets may be stored on a non-transitory computer-readable storage medium, such as the storage device 1125 described above. In some cases, the storage medium may be incorporated into a computer system (e.g., computer system 1100). In other embodiments, the storage medium may be separable from the computer system (e.g., a removable medium, such as an optical disc), and / or provided in an installation package, such that the storage medium can be used to program, configure, and / or adjust a general-purpose computer with the instructions / code stored thereon. These instructions may take the form of executable code (which can be executed by computer system 1100) and / or may take the form of source code and / or installable code (which, after being compiled and / or installed on computer system 1100 (e.g., using any of a variety of generally available compilers, installers, compression / decompression tools, etc.), then take the form of executable code).

[0125] Figure 12 An embodiment of base station 120 is shown, which can be as described above (e.g., with...). Figure 1-10 (Related) Utilization. It should be noted that... Figure 12 This is intended only to provide a general description of the various components, any or all of which may be used as appropriate. In some embodiments, base station 120 may correspond to a gNB, ng-eNB, and / or (more generally) TRP.

[0126] Base station 120 is shown to include hardware elements electrically coupled (or otherwise communicable) via bus 1205. The hardware elements may include processing unit 1210, which may include, but is not limited to, one or more general-purpose processors, one or more special-purpose processors (e.g., DSP chips, graphics accelerator processors, ASICs and / or the like), and / or other processing structures or components. Figure 12 As shown, depending on the required functionality, some embodiments may have a separate DSP 1220. According to some embodiments, location determination and / or other determinations based on wireless communication may be provided in the processing unit 1210 and / or the wireless communication interface 1230 (discussed below). The base station 120 may also include one or more input devices, which may include, but are not limited to, a keyboard, display, mouse, microphone, buttons, dial, switch, etc.; and one or more output devices, which may include, but are not limited to, a display, light-emitting diode (LED), speaker, etc.

[0127] Base station 120 may also include wireless communication interface 1230, which may include, but is not limited to, modem, network card, infrared communication device, wireless communication device and / or chipset (e.g., The device (such as IEEE 802.11 device, IEEE 802.15.4 device, Wi-Fi device, WiMAX device, cellular communication facility, etc.) enables base station 120 to communicate as described herein. Wireless communication interface 1230 allows data and signaling to be transmitted (e.g., sent and received) to UE, other base stations / TRPs (e.g., eNB, gNB, and ng-eNB) and / or other network components, computer systems, and / or any other electronic equipment described herein. This communication can be performed via one or more wireless communication antennas 1232 that transmit and / or receive wireless signals 1234.

[0128] Base station 120 may also include network interface 1280, which may include support for wired communication technologies. Network interface 1280 may include a modem, network interface card, chipset, etc. Network interface 1280 may include one or more input and / or output communication interfaces to allow data exchange with the networks, communication network servers, computer systems and / or any other electronic devices described herein.

[0129] In many embodiments, base station 120 may also include memory 1260. Memory 1260 may include, but is not limited to, locally and / or network-accessible storage devices, disk drives, drive arrays, optical storage devices, solid-state storage devices (e.g., RAM and / or ROM), which may be programmable, flash-updatable, etc. Such storage devices may be configured to implement any suitable data storage, including but not limited to various file systems, database structures, etc.

[0130] The memory 1260 of base station 120 may also include software elements ( Figure 12 (Not shown in the text) includes an operating system, device drivers, executable libraries, and / or other code (e.g., one or more applications). This may include computer programs provided by various embodiments, and / or may be designed to implement methods provided by other embodiments and / or configure systems provided by other embodiments, as described herein. By way of example only, one or more processes described with respect to the methods discussed above may be implemented as code and / or instructions in memory 1260 executable by base station 120 (and / or processing unit 1210 or DSP 1220 within base station 120). In one aspect, such code and / or instructions may be used to configure and / or adjust a general-purpose computer (or other device) to perform one or more operations according to the described methods.

[0131] It will be apparent to those skilled in the art that substantial variations can be made to suit specific requirements. For example, custom hardware and / or specific elements can be implemented in hardware, software (including portable software such as applets), or both. Furthermore, connectivity with other computing devices (e.g., network input / output devices) can be employed.

[0132] Referring to the accompanying drawings, components that may include memory may include non-transitory machine-readable media. As used herein, the terms "machine-readable media" and "computer-readable media" refer to any storage medium that participates in providing data that enables a machine to operate in a particular manner. In the embodiments provided above, various machine-readable media may relate to providing instructions / code to a processing unit and / or other devices for execution. Additionally or alternatively, machine-readable media may be used to store and / or carry such instructions / code. In many embodiments, computer-readable media are physical and / or tangible storage media. Such media can take many forms, including but not limited to non-volatile media, volatile media, etc. Common forms of computer-readable media include, for example, magnetic and / or optical media, any other physical media with a perforated pattern, RAM, programmable ROM (programmable read-only memory (PROM)), erasable PROM (EPROM), FLASH-EPROM, any other memory chip or cartridge, the carrier described below, or any other medium from which a computer can read instructions and / or code.

[0133] The methods, systems, and apparatuses discussed herein are examples. Various processes or components may be omitted, substituted, or added as appropriate in various embodiments. For example, features described with respect to certain embodiments may be combined in various other embodiments. Different aspects and elements of embodiments may be combined in a similar manner. The various components in the figures provided herein may be embodied in hardware and / or software. Furthermore, technology is constantly evolving, and therefore many elements are examples, which do not limit the scope of disclosure to these specific examples.

[0134] It has been proven convenient, sometimes, primarily for common reasons, to refer to these signals as bits, information, values, elements, symbols, characters, variables, terms, numbers, numerals, etc. However, it should be understood that all such terms, or similar terms, will be associated with appropriate physical quantities and are merely convenient labels. Unless otherwise specified, as is apparent from the above discussion, it should be understood that throughout this specification, discussions using terms such as “processing,” “calculating,” “operating,” “determining,” “identifying,” “ascertaining,” “associating,” “measuring,” and “executing” refer to the actions or processes of a specific device (such as a dedicated computer or similar dedicated electronic computing device). Therefore, in the context of this specification, a dedicated computer or similar dedicated electronic computing device is capable of manipulating or converting signals that are generally represented as physical electronic, electrical, or magnetic quantities within the memory, registers, or other information storage devices, transmitting devices, or display devices of the dedicated computer or similar dedicated electronic computing device.

[0135] The terms “and” and “or” as used herein can include a variety of meanings, which are also expected to depend at least in part on the context in which they are used. Generally, “or” when used in an associative list, such as A, B, or C, means A, B, and C (in the sense of inclusion) and A, B, or C (in the sense of exclusion). Furthermore, the term “one or more” as used herein can be used to describe any feature, structure, or property in the singular, or can be used to describe a combination of features, structures, or properties. However, it should be noted that this is merely an illustrative example, and the claimed subject matter is not limited to this example. Additionally, the term “at least one” when used in an associative list, such as A, B, or C, can be interpreted as meaning any combination of A, B, and / or C, such as A, AB, AA, AAB, AABBCCC, etc.

[0136] Specific details are provided in the description to offer a thorough understanding of the example configurations (including implementations). However, the configurations can be practiced without these specific details. For example, well-known circuits, processes, algorithms, structures, and techniques have been shown without unnecessary details to avoid obscuring the configurations. This description provides only example configurations and does not limit the scope, applicability, or configuration of the claims. Rather, the foregoing description of the configurations will provide those skilled in the art with an enabling description for implementing the described techniques. Various changes can be made to the function and arrangement of the elements without departing from the spirit or scope of this disclosure.

[0137] Additionally, the configuration can be described as a process, depicted as a flowchart or block diagram. While each operation can be described as a sequential process, many operations can be executed in parallel or concurrently. Furthermore, the order of operations can be rearranged. The process may have additional steps not included in the diagram. Furthermore, examples of this method can be implemented using hardware, software, firmware, middleware, microcode, hardware description languages, or any combination thereof. When implemented in software, firmware, middleware, or code, the program code or code segments used to perform the necessary tasks can be stored in a non-transitory computer-readable medium (e.g., storage medium). The processor can execute the described tasks.

[0138] Several example configurations have been described, and various modifications, alternative structures, and equivalents may be used without departing from the spirit of this disclosure. For example, the elements described above may be components of a larger system, where other rules may take precedence over or otherwise modify the application of this disclosure. Furthermore, multiple steps may be taken before, during, or after considering the elements described above.

[0139] In view of this description, embodiments may include different combinations of features. Examples of implementations are described in the following numbered clauses:

[0140] Clause 1: A method for determining a preferred bandwidth portion (BWP) for positioning a session at a mobile device, the method comprising:

[0141] The frequency and bandwidth of each of a plurality of reference signals to be transmitted by one or more base stations during the positioning session are determined, based at least in part on auxiliary data received by the mobile device.

[0142] The frequency and bandwidth of each of the plurality of BWPs are determined, at least in part, based on radio receiver configuration (RRC) information received by the mobile device.

[0143] The preferred BWP is determined at least in part based on the frequency and bandwidth of the plurality of BWPs and the plurality of reference signals; and

[0144] Send the preferred BWP instruction to the serving base station.

[0145] Clause 2: The method according to Clause 1, wherein the preferred BWP includes one of the plurality of BWPs, wherein in the one BWP, the most significant of the plurality of reference signals can be measured by the mobile device during the positioning session without retuning the transceiver of the mobile device.

[0146] Clause 3: The method described in Clause 1 further includes:

[0147] Determine the threshold level at which the plurality of reference signals exceed the signal strength; and

[0148] In response to determining that the plurality of reference signals exceed a threshold level of the signal strength, the arrival geometry of each of the plurality of reference signals originating from the one or more base stations is determined;

[0149] The preferred BWP among the plurality of BWPs is determined at least in part based on the arrival geometry of the plurality of reference signals.

[0150] Clause 4: The method according to any one of Clauses 1-3, wherein determining the preferred BWP is based at least in part on determining how self-interference at the mobile device can affect one or more of the plurality of reference signals.

[0151] Clause 5: The method described in Clause 4, wherein the location session is conducted in E-ULTRA New Radio Dual Connectivity (ENDC) or Non-Standalone (NSA) mode.

[0152] Clause 6: The method according to any one of Clauses 1-5, wherein the plurality of reference signals comprises:

[0153] Positioning Reference Signal (PRS),

[0154] Tracking Reference Signal (TRS), or

[0155] Synchronization Signal Block (SSB), or

[0156] Any combination of them.

[0157] Clause 7: The method according to any one of Clauses 1-6, wherein the auxiliary data is received from a location server (LS), the serving base station, or both.

[0158] Clause 8: The method according to any one of Clauses 1-7, wherein the auxiliary data includes dedicated auxiliary data, broadcast auxiliary data, or both.

[0159] Clause 9: The method according to any one of Clauses 1-8 further includes, after sending the instruction of the preferred BWP to the serving base station, sending a request for a reference signal to the serving base station or LS; wherein the reference signal is to be transmitted using the preferred BWP.

[0160] Clause 10: The method according to any one of Clauses 1-9 further includes, after sending the instruction of the preferred BWP to the serving base station:

[0161] Receive at the mobile device an instruction to configure a specified BWP selected at least in part based on the instruction of the preferred BWP; and

[0162] Use the specified BWP to measure at least a portion of a plurality of reference signals.

[0163] Clause 11: The method according to Clause 10, wherein the designated BWP includes the preferred BWP.

[0164] Clause 12: A method for configuring a transceiver of a mobile device for locating a session, the method comprising:

[0165] The frequency and bandwidth of each of a plurality of reference signals to be transmitted by one or more base stations during the positioning session are determined, based at least in part on auxiliary data received by the mobile device.

[0166] Determine the minimum frequency (F) of the multiple reference signals used for measurements during the positioning session. min ) and maximum frequency (F max );

[0167] The receive bandwidth is determined at least in part based on the determined minimum frequency and the determined maximum frequency; and

[0168] The transceiver of the mobile device is tuned from the active bandwidth portion (BWP) to the receive bandwidth used for the location session.

[0169] Clause 13: The method according to Clause 12, wherein the receiving bandwidth is less than or equal to the carrier bandwidth encapsulating the plurality of reference signals.

[0170] Clause 14: The method according to Clause 12 or Clause 13, wherein the location session includes activating the location session.

[0171] Clause 15: The method according to any one of Clauses 12-14 further includes retuning the transceiver of the mobile device to an active BWP after the location session is completed.

[0172] Clause 16: The method according to any one of Clauses 12-15, wherein the receiving bandwidth is further based at least in part on the battery charging state of the mobile device.

[0173] Clause 17: The method according to any one of Clauses 12 or 14-16, wherein if the battery state of charge is above a threshold, the receiving bandwidth is determined to include the entire carrier bandwidth.

[0174] Clause 18: The method according to any one of Clauses 12-17, wherein the plurality of reference signals comprises:

[0175] Positioning Reference Signal (PRS),

[0176] Tracking Reference Signal (TRS),

[0177] Synchronization Signal Block (SSB), or

[0178] Any combination of them.

[0179] Clause 19: The method according to any one of Clauses 12-18, wherein the auxiliary data is received from a location server (LS), a serving base station, or both.

[0180] Clause 20: The method according to any one of Clauses 12-19, wherein the auxiliary data includes dedicated auxiliary data, broadcast auxiliary data, or both.

[0181] Clause 21: The method according to any one of Clauses 12-20 further includes sending a request for a reference signal to be transmitted using the received bandwidth; wherein the request is sent from the mobile device to the serving base station or LS.

[0182] Clause 22: A mobile device comprising:

[0183] transceiver;

[0184] Memory; and

[0185] One or more processing units communicatively coupled to the transceiver and the memory, and configured to:

[0186] The frequency and bandwidth of each of a plurality of reference signals to be transmitted by one or more base stations during a positioning session are determined, based at least in part on auxiliary data received by the mobile device.

[0187] The frequency and bandwidth of each of the multiple bandwidth portions (BWPs) are determined, at least in part, based on radio receiver configuration (RRC) information received by the mobile device.

[0188] The preferred BWP is determined at least in part based on the frequency and bandwidth of the plurality of BWPs and the plurality of reference signals; and

[0189] The preferred BWP is sent to the serving base station via the transceiver.

[0190] Clause 23: The mobile device according to Clause 22, wherein, in order to determine the preferred BWP, the one or more processing units are configured to select the preferred BWP from the plurality of BWPs as the BWP having the most reference signal among the plurality of reference signals, wherein the most reference signal among the plurality of reference signals can be measured by the mobile device during the positioning session without retuning the transceiver of the mobile device.

[0191] Clause 24: The mobile device pursuant to Clause 22, wherein the one or more processing units are further configured to:

[0192] Determine the threshold level at which the plurality of reference signals exceed the signal strength; and

[0193] In response to determining that the plurality of reference signals exceed a threshold level of the signal strength, the arrival geometry of each of the plurality of reference signals originating from the one or more base stations is determined;

[0194] The one or more processing units are configured to further determine the preferred BWP among the plurality of BWPs based at least in part on the arrival geometry of the plurality of reference signals.

[0195] Clause 25: A mobile device according to any one of Clauses 22-24, wherein the one or more processing units are further configured to make the determination of the preferred BWP among the plurality of BWPs at least in part based on how self-interference at the mobile device can affect the determination of one or more of the plurality of reference signals.

[0196] Clause 26: The mobile device pursuant to Clause 25, wherein one or more processing units are configured to conduct location sessions in E-ULTRA New Radio Dual Connectivity (ENDC) or Non-Standalone (NSA) mode.

[0197] Clause 27: A mobile device pursuant to any one of Clauses 22-26, wherein the plurality of reference signals includes:

[0198] Positioning Reference Signal (PRS),

[0199] Tracking Reference Signal (TRS), or

[0200] Synchronization Signal Block (SSB), or

[0201] Any combination of them.

[0202] Clause 28: A mobile device pursuant to any one of Clauses 22-27, wherein the auxiliary data is received from a location server (LS), a serving base station, or both.

[0203] Clause 29: A mobile device pursuant to any one of Clauses 22-28, wherein the auxiliary data includes dedicated auxiliary data, broadcast auxiliary data, or both.

[0204] Clause 30: A mobile device pursuant to any one of Clauses 22-29, wherein the one or more processing units are further configured to, after sending an instruction for the preferred BWP to the serving base station, send a request for a reference signal via the transceiver to the serving base station or LS; wherein the reference signal is to be transmitted using the preferred BWP.

[0205] Clause 31: A mobile device pursuant to any one of Clauses 22-30, wherein the one or more processing units are further configured to, after sending the instruction of the preferred BWP to the serving base station:

[0206] The transceiver receives an indication of the configuration of a specified BWP selected at least in part based on the indication of the preferred BWP; and

[0207] Using the transceiver, at least a portion of a plurality of reference signals is measured using the specified BWP.

[0208] Clause 32: The mobile device of claim 31, wherein the designated BWP includes the preferred BWP.

[0209] Clause 33: A mobile device comprising:

[0210] transceiver;

[0211] Memory; and

[0212] One or more processing units communicatively coupled to the transceiver and the memory, and configured to:

[0213] The frequency and bandwidth of each of a plurality of reference signals to be transmitted by one or more base stations during a positioning session are determined, based at least in part on auxiliary data received by the mobile device.

[0214] Determine the minimum frequency (F) of the multiple reference signals used for measurements during the positioning session. min ) and maximum frequency (F max );

[0215] The receive bandwidth is determined at least in part based on the determined minimum frequency and the determined maximum frequency; and

[0216] The transceiver is tuned from the active bandwidth portion (BWP) for the receive bandwidth of the location session.

[0217] Clause 34: The mobile device according to Clause 33, wherein the receiving bandwidth is less than or equal to the carrier bandwidth encapsulating the plurality of reference signals.

[0218] Clause 35: A mobile device as described in Clause 33 or Clause 34, wherein the location session includes activating a location session.

[0219] Clause 36: A mobile device according to any one of Clauses 33-35, wherein the one or more processing units are further configured to retun the transceiver of the mobile device to an active BWP after the location session has concluded.

[0220] Clause 37: A mobile device according to any one of Clauses 33-36, wherein the one or more processing units are further configured to determine the receiving bandwidth based at least in part on the battery charging state of the mobile device.

[0221] Clause 38: A mobile device pursuant to any one of Clauses 33 or 35-37, wherein the one or more processing units are further configured to determine the receive bandwidth to include the entire carrier bandwidth if the battery state of charge is above a threshold.

[0222] Clause 39: A mobile device pursuant to any one of Clauses 33-38, wherein the plurality of reference signals includes:

[0223] Positioning Reference Signal (PRS),

[0224] Tracking Reference Signal (TRS), or

[0225] Synchronization Signal Block (SSB), or

[0226] Any combination of them.

[0227] Clause 40: A mobile device pursuant to any one of Clauses 33-39, wherein the auxiliary data is received from a location server (LS), a serving base station, or both.

[0228] Clause 41: A mobile device pursuant to any one of Clauses 33-40, wherein the auxiliary data includes dedicated auxiliary data, broadcast auxiliary data, or both.

[0229] Clause 42: A mobile device according to any one of Clauses 33-41, wherein the one or more processing units are further configured to send a request for a reference signal to be transmitted using the received bandwidth, wherein the request is sent from the mobile device to a serving base station or LS.

[0230] Clause 43: An apparatus for determining a preferred bandwidth portion (BWP) for a location session at a mobile device, said apparatus comprising:

[0231] A component for determining the frequency and bandwidth of each of a plurality of reference signals to be transmitted by one or more base stations during the positioning session, based at least in part on auxiliary data received by the mobile device.

[0232] Components for determining the frequency and bandwidth of each of a plurality of BWPs based at least in part on radio receiver configuration (RRC) information received by the mobile device;

[0233] For determining the preferred BWP component based at least in part on the frequency and bandwidth of the plurality of BWPs and the plurality of reference signals; and

[0234] Send the preferred BWP instruction to the serving base station.

[0235] Clause 44: The device according to Clause 43, wherein the preferred BWP includes one of the plurality of BWPs, wherein the most significant reference signal among the plurality of reference signals in that one BWP is capable of being measured by the mobile device during the positioning session without retuning the transceiver of the mobile device.

[0236] Clause 45: The device described in Clause 43 further includes:

[0237] A component for determining whether the plurality of reference signals exceed a threshold level of signal strength; and

[0238] A component for determining the arrival geometry of each of the plurality of reference signals originating from the one or more base stations in response to determining that the plurality of reference signals exceed a threshold level of the signal strength;

[0239] The preferred BWP among the plurality of BWPs is determined at least in part based on the arrival geometry of the plurality of reference signals.

[0240] Clause 46: The device according to any one of Clauses 43-45, wherein the determination of the preferred BWP is based at least in part on the determination of how self-interference at the mobile device can affect one or more of the plurality of reference signals.

[0241] Clause 47: The device described in Clause 46, wherein the positioning session is conducted in E-ULTRA New Radio Dual Connectivity (ENDC) or Non-Standalone (NSA) mode.

[0242] Clause 48: The device according to any one of Clauses 43-47, wherein said plurality of reference signals include:

[0243] Positioning Reference Signal (PRS),

[0244] Tracking Reference Signal (TRS), or

[0245] Synchronization Signal Block (SSB), or

[0246] Any combination of them.

[0247] Clause 49: The device pursuant to any one of Clauses 43-48, wherein the auxiliary data is received from a location server (LS), the serving base station, or both.

[0248] Clause 50: The device pursuant to any one of Clauses 43-49, wherein the auxiliary data includes dedicated auxiliary data, broadcast auxiliary data, or both.

[0249] Clause 51: The device according to any one of Clauses 43-50 further includes a component for sending a request for a reference signal to the serving base station or LS after sending the instruction of the preferred BWP to the serving base station; wherein the reference signal is to be sent using the preferred BWP.

[0250] Clause 52: A device for configuring a transceiver of a mobile device for locating a session, said device comprising:

[0251] A component for determining the frequency and bandwidth of each of a plurality of reference signals to be transmitted by one or more base stations during the positioning session, based at least in part on auxiliary data received by the mobile device.

[0252] The minimum frequency (F) of multiple reference signals used to determine the encapsulation for measurements during the positioning session. min ) and maximum frequency (F max ) components;

[0253] A component for determining the receive bandwidth based at least in part on the determined minimum frequency and the determined maximum frequency; and

[0254] A component for tuning the transceiver of the mobile device from the active bandwidth portion (BWP) to the receive bandwidth for the positioning session.

[0255] Clause 53: The device according to Clause 52, wherein the receiving bandwidth is less than or equal to the carrier bandwidth encapsulating the plurality of reference signals.

[0256] Clause 54: The device as described in Clause 52 or Clause 53, wherein the location session includes activating the location session.

[0257] Clause 55: The device according to any one of Clauses 52-54 further includes a component for retuning the transceiver of the mobile device to activate the BWP after the location session is completed.

[0258] Clause 56: The device according to any one of Clauses 52-55, wherein the receiving bandwidth is further based at least in part on the battery charging state of the mobile device.

[0259] Clause 57: A device pursuant to any one of Clauses 52 or 54-56, wherein if the battery state of charge is above a threshold, the receive bandwidth is determined to include the entire carrier bandwidth.

[0260] Clause 58: The device according to any one of Clauses 52-57, wherein the plurality of reference signals includes:

[0261] Positioning Reference Signal (PRS),

[0262] Tracking Reference Signal (TRS),

[0263] Synchronization Signal Block (SSB), or

[0264] Any combination of them.

[0265] Clause 59: The device pursuant to any one of Clauses 52-58, wherein the auxiliary data is received from a location server (LS), a serving base station, or both.

[0266] Clause 60: The device pursuant to any one of Clauses 52-59, wherein the auxiliary data includes dedicated auxiliary data, broadcast auxiliary data, or both.

[0267] Clause 61: The device according to any one of Clauses 52-60 further includes a component for sending a request for a reference signal to be transmitted using the received bandwidth; wherein the request is sent from the mobile device to the serving base station or LS.

[0268] Clause 62: A non-transitory computer-readable medium storing instructions for determining a preferred bandwidth portion (BWP) for locating a session at a mobile device, the instructions comprising code for:

[0269] The frequency and bandwidth of each of a plurality of reference signals to be transmitted by one or more base stations during the positioning session are determined, based at least in part on auxiliary data received by the mobile device.

[0270] The frequency and bandwidth of each of the plurality of BWPs are determined, at least in part, based on radio receiver configuration (RRC) information received by the mobile device.

[0271] The preferred BWP is determined at least in part based on the frequency and bandwidth of the plurality of BWPs and the plurality of reference signals; and

[0272] Send the preferred BWP instruction to the serving base station.

[0273] Clause 63: The non-transitory computer-readable medium according to Clause 62, wherein the preferred BWP comprises one of the plurality of BWPs, wherein in that one BWP, the most significant of the plurality of reference signals is capable of being measured by the mobile device during the positioning session without retuning the transceiver of the mobile device.

[0274] Clause 64: A non-transitory computer-readable medium as described in Clause 62, wherein said instructions further include code for:

[0275] Determine the threshold level at which the plurality of reference signals exceed the signal strength; and

[0276] In response to determining that the plurality of reference signals exceed a threshold level of the signal strength, the arrival geometry of each of the plurality of reference signals originating from the one or more base stations is determined;

[0277] The preferred BWP among the plurality of BWPs is determined at least in part based on the arrival geometry of the plurality of reference signals.

[0278] Clause 65: A non-transitory computer-readable medium according to any one of Clauses 62-64, wherein the determination of the preferred BWP is based at least in part on the determination of how self-interference at the mobile device can affect one or more of the plurality of reference signals.

[0279] Clause 66: Non-transitory computer-readable medium as described in Clause 65, wherein the location session is conducted in E-ULTRA New Radio Dual Connectivity (ENDC) or Non-Standalone (NSA) mode.

[0280] Clause 67: A non-transitory computer-readable medium according to any one of Clauses 62-66, wherein the plurality of reference signals comprises:

[0281] Positioning Reference Signal (PRS),

[0282] Tracking Reference Signal (TRS),

[0283] Synchronization Signal Block (SSB), or

[0284] Any combination of them.

[0285] Clause 68: A non-transitory computer-readable medium pursuant to any one of Clauses 62-67, wherein the auxiliary data is received from a location server (LS), the serving base station, or both.

[0286] Clause 69: A non-transitory computer-readable medium pursuant to any one of Clauses 62-68, wherein the auxiliary data includes dedicated auxiliary data, broadcast auxiliary data, or both.

[0287] Clause 70: A non-transitory computer-readable medium pursuant to any one of Clauses 62-69, wherein the instructions further include code for sending a request for a reference signal to the serving base station or LS after sending an instruction to the serving base station for the preferred BWP; wherein the reference signal is to be transmitted using the preferred BWP.

[0288] Clause 71: A non-transitory computer-readable medium storing instructions for configuring a transceiver of a mobile device for locating a session, the instructions including code for:

[0289] The frequency and bandwidth of each of a plurality of reference signals to be transmitted by one or more base stations during the positioning session are determined, based at least in part on auxiliary data received by the mobile device.

[0290] Determine the minimum frequency (F) of multiple reference signals used for measurement during the positioning session. min ) and maximum frequency (F max );

[0291] The receive bandwidth is determined at least in part based on the determined minimum frequency and the determined maximum frequency; and

[0292] The transceiver of the mobile device is tuned from the active bandwidth portion (BWP) to the receive bandwidth used for the location session.

[0293] Clause 72: The non-transitory computer-readable medium as described in Clause 71, wherein the receiving bandwidth is less than or equal to the carrier bandwidth encapsulating the plurality of reference signals.

[0294] Clause 73: A non-transitory computer-readable medium as described in Clause 71 or Clause 72, wherein the location session includes activating the location session.

[0295] Clause 74: A non-transitory computer-readable medium pursuant to any one of Clauses 71-73, wherein the instructions further include code for retuning the transceiver of the mobile device to activate the BWP after the location session has concluded.

[0296] Clause 75: A non-transitory computer-readable medium according to any one of Clauses 71-74, wherein the receiving bandwidth is also based at least in part on the battery state of the mobile device.

[0297] Clause 76: A non-transitory computer-readable medium pursuant to any one of Clauses 71 or 73-75, wherein the receive bandwidth is determined to include the entire carrier bandwidth if the battery state of charge is above a threshold.

[0298] Clause 77: A non-transitory computer-readable medium according to any one of Clauses 71-76, wherein said plurality of reference signals include:

[0299] Positioning Reference Signal (PRS),

[0300] Tracking Reference Signal (TRS), or

[0301] Synchronization Signal Block (SSB), or

[0302] Any combination of them.

[0303] Clause 78: A non-transitory computer-readable medium pursuant to any one of Clauses 71-77, wherein the auxiliary data is received from a location server (LS), a serving base station, or both.

[0304] Clause 79: A non-transitory computer-readable medium pursuant to any one of Clauses 71-78, wherein the ancillary data includes dedicated ancillary data, broadcast ancillary data, or both.

[0305] Clause 80: A non-transitory computer-readable medium pursuant to any one of Clauses 71-79, wherein the instructions further include code for sending a request to transmit a reference signal using the received bandwidth; wherein the request is sent from the mobile device to a serving base station or LS.

Claims

1. A method for determining a preferred bandwidth portion (BWP) for a location session at a mobile device, the method comprising: The frequency and bandwidth of each of a plurality of reference signals to be transmitted by one or more base stations during the positioning session are determined, based at least in part on auxiliary data received by the mobile device. The frequency and bandwidth of each of the plurality of BWPs are determined, at least in part, based on the radio receiver configuration RRC information received by the mobile device. Determine that the signal strength of each of the plurality of reference signals exceeds a threshold level for signal strength; In response to determining that the signal strength of each of the plurality of reference signals exceeds a threshold level of the signal strength, the arrival geometry of each of the plurality of reference signals originating from the one or more base stations is determined; The preferred BWP is determined at least in part based on the following: The frequency and bandwidth of the plurality of reference signals, The frequencies and bandwidths of the multiple BWPs, and Geometric accuracy attenuation of the arrival geometry for each of the plurality of reference signals; as well as Send the preferred BWP instruction to the serving base station.

2. The method of claim 1, wherein the preferred BWP comprises one of the plurality of BWPs, wherein in the one BWP, the most significant of the plurality of reference signals is measurable by the mobile device during the positioning session without retuning the transceiver of the mobile device.

3. The method of claim 1, wherein determining the preferred BWP is further based at least in part on determining how self-interference at the mobile device can affect one or more of the plurality of reference signals.

4. The method of claim 3, wherein the positioning session is performed in E-ULTRA New Radio Dual Connectivity (ENDC) or Non-Standalone (NSA) mode.

5. The method of claim 1, wherein the plurality of reference signals comprises: Positioning reference signal PRS, Tracking reference signal TRS, or Synchronization signal block SSB, or Any combination of them.

6. The method of claim 1, wherein the auxiliary data is received from a location server LS, the serving base station, or both.

7. The method of claim 1, wherein the auxiliary data includes dedicated auxiliary data, broadcast auxiliary data, or both.

8. The method of claim 1, further comprising, after sending the instruction of the preferred BWP to the serving base station, sending a request for a reference signal to the serving base station or LS; wherein the reference signal is to be transmitted using the preferred BWP.

9. The method of claim 1, further comprising, after sending the indication of the preferred BWP to the serving base station: Receive at the mobile device an instruction to configure a specified BWP selected at least in part based on the instruction of the preferred BWP; and The specified BWP is used to measure at least a portion of the plurality of reference signals.

10. The method of claim 9, wherein the designated BWP includes the preferred BWP.

11. A mobile device, comprising: transceiver; Memory; as well as One or more processing units communicatively coupled to the transceiver and the memory, and configured to: The frequency and bandwidth of each of a plurality of reference signals to be transmitted by one or more base stations during a positioning session are determined, based at least in part on auxiliary data received by the mobile device. The frequency and bandwidth of each of the multiple bandwidth portions (BWPs) are determined, at least in part based on the radio receiver configuration RRC information received by the mobile device. Determine that the signal strength of each of the plurality of reference signals exceeds a threshold level for signal strength; In response to determining that the signal strength of each of the plurality of reference signals exceeds a threshold level of the signal strength, the arrival geometry of each of the plurality of reference signals originating from the one or more base stations is determined; The preferred BWP is determined based on at least part of the following: The frequency and bandwidth of the plurality of reference signals, The frequencies and bandwidths of the multiple BWPs, and Geometric accuracy attenuation of the arrival geometry for each of the plurality of reference signals; as well as The preferred BWP is sent to the serving base station via the transceiver.

12. The mobile device according to claim 11, wherein, In order to determine the preferred BWP, the one or more processing units are configured to select the preferred BWP from the plurality of BWPs as the BWP having the most reference signals among the plurality of reference signals, wherein the most reference signals among the plurality of reference signals can be measured by the mobile device during the positioning session without retuning the transceiver of the mobile device.

13. The mobile device of claim 11, wherein the one or more processing units are configured to further determine the preferred BWP among the plurality of BWPs based at least in part on how self-interference at the mobile device can affect the determination of one or more of the plurality of reference signals.

14. The mobile device of claim 13, wherein the one or more processing units are configured to perform a location session in E-ULTRA New Radio Dual Connectivity (ENDC) or Non-Standalone (NSA) mode.

15. The mobile device of claim 11, wherein the plurality of reference signals comprises: Positioning reference signal PRS, Tracking reference signal TRS, or Synchronization signal block SSB, or Any combination of them.

16. The mobile device of claim 11, wherein the auxiliary data is received from a location server LS, a serving base station, or both.

17. The mobile device of claim 11, wherein the auxiliary data includes dedicated auxiliary data, broadcast auxiliary data, or both.

18. The mobile device of claim 11, wherein the one or more processing units are further configured to, after sending an indication of the preferred BWP to the serving base station, send a request for a reference signal via the transceiver to the serving base station or LS; wherein the reference signal is to be transmitted using the preferred BWP.

19. The mobile device of claim 11, wherein the one or more processing units are further configured to, after sending the indication of the preferred BWP to the serving base station: The transceiver receives an indication of the configuration of a specified BWP selected at least in part based on the indication of the preferred BWP; and Using the transceiver, at least a portion of the plurality of reference signals is measured using the designated BWP.

20. The mobile device of claim 19, wherein the designated BWP includes the preferred BWP.

21. A non-transitory computer-readable medium storing instructions for determining a preferred bandwidth portion (BWP) for locating a session at a mobile device, the instructions including code for performing the method according to any one of claims 1 to 10.

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