Positioning reference signal bandwidth adaptation for user equipment power savings

Abstract

Positioning reference signal bandwidth adaptation for user equipment power saving is provided. Techniques for reducing the bandwidth required to receive a reference signal with a user equipment (UE) are provided. An example method for positioning reference signal bandwidth adaptation includes determining a target accuracy, determining a positioning reference signal bandwidth based on the target accuracy, and transmitting a positioning reference signal based on the positioning reference signal bandwidth.

Description

[0001] This invention patent application is a divisional application of the invention patent application with international application number PCT / US2021 / 044102, international application date of August 1, 2021, application number 202180051547.2 that entered the Chinese national phase, and titled "Positioning reference signal bandwidth adaptation for power saving of user equipment". Technical Field

[0002] This application relates to methods and apparatus for positioning reference signal bandwidth adaptation and obtaining positioning measurements, and more particularly to positioning reference signal bandwidth adaptation for power saving of user equipment. Background Technology

[0003] Wireless communication systems have undergone several generations of development, including first-generation analog radiotelephone service (1G), second-generation (2G) digital radiotelephone service (including transitional 2.5G and 2.75G networks), third-generation (3G) high-speed data radio service with Internet capabilities, fourth-generation (4G) service (e.g., Long Term Evolution (LTE) or WiMax), and fifth-generation (5G) service (e.g., 5G New Radio (NR)). Currently, many different types of wireless communication systems are in use, including cellular and Personal Communication Services (PCS) systems. Known examples of cellular systems include cellular analog Advanced Mobile Phone Systems (AMPS), and digital cellular systems based on Code Division Multiple Access (CDMA), Frequency Division Multiple Access (FDMA), Time Division Multiple Access (TDMA), and GSM TDMA variants.

[0004] It is typically desired to know the location of a user equipment (UE) (e.g., a cellular phone), where the terms "location" and "positioning" are synonymous and can be used interchangeably herein. A Location Services (LCS) client may require knowledge of the UE's location and may communicate with a location center to request the UE's location. The location center and the UE may exchange messages appropriately to obtain a location estimate for the UE. The location center may then return this location estimate to the LCS client, for example, for use in one or more applications.

[0005] Obtaining the location of a mobile device accessing a wireless network can be useful for many applications, including emergency calls, personal navigation, asset tracking, and locating friends or family members. Existing positioning methods include those based on measuring radio signals transmitted from various devices, including satellites and terrestrial radio sources (such as base stations and access points) within the wireless network. Stations in the wireless network can be configured to transmit reference signals that enable mobile devices to perform positioning measurements. Improvements in positioning-related signaling can enhance the efficiency of mobile devices. Summary of the Invention

[0006] An example method for positioning reference signal bandwidth adaptation according to the present disclosure includes determining a target accuracy, determining a positioning reference signal bandwidth based on the target accuracy, and transmitting a positioning reference signal based on the positioning reference signal bandwidth.

[0007] Implementation of such methods may include one or more of the following features: The positioning reference signal bandwidth may be associated with a positioning frequency layer. Determining the target accuracy may include determining the quality of service used for positioning. Determining the target accuracy may include receiving the target accuracy from a network server. The method may include providing the user equipment with an indication of the positioning reference signal bandwidth. Providing the indication of the positioning reference signal bandwidth may include providing the indication in a downlink control information message or a media access control (MAC) control element (CE). Determining the positioning reference signal bandwidth may include obtaining the positioning reference signal bandwidth from a data structure.

[0008] An example method for measuring bandwidth using a positioning reference signal within a frequency layer, according to the present disclosure, includes determining a target accuracy, determining the positioning reference signal measurement bandwidth based on the target accuracy, and transmitting a signal indicating the positioning reference signal measurement bandwidth.

[0009] Implementation of such methods may include one or more of the following features: Determining the target accuracy may include determining the quality of service used for positioning. Determining the target accuracy may include receiving the target accuracy from a network server. Determining the target accuracy may include receiving the target accuracy from user equipment. The frequency layer may be associated with multiple positioning reference signal measurement bandwidths, and the signal indicating the positioning reference signal measurement bandwidth indicates one or more positioning reference signal measurement bandwidths. Transmitting the signal indicating the positioning reference signal measurement bandwidth may include providing an indication in a downlink control information message or a media access control (MAC) control element (CE). Transmitting the signal indicating the positioning reference signal measurement bandwidth may include providing an indication of a portion of the bandwidth. The method may include transmitting positioning reference signals in a bandwidth greater than the positioning reference signal measurement bandwidth. Positioning reference signals may be transmitted in a bandwidth equal to the positioning reference signal measurement bandwidth. Transmitting the signal indicating the positioning reference signal measurement bandwidth may include providing an indication of one of multiple pre-specified positioning reference signal measurement bandwidths. Transmitting the signal indicating the positioning reference signal measurement bandwidth may include providing an indication of the size of a variable positioning reference signal measurement bandwidth. Timing measurement quality and an indication of the current positioning reference signal measurement bandwidth may be received from the user equipment.

[0010] An example method for obtaining a positioning measurement according to the present disclosure includes receiving a signal indicating a positioning reference signal measurement bandwidth, receiving one or more positioning reference signals, and obtaining a positioning measurement for at least one of the one or more positioning reference signals based at least in part on the positioning reference signal measurement bandwidth.

[0011] Implementations of such methods may include one or more of the following features: Receiving a signal indicating the measurement bandwidth of the positioning reference signal may include receiving an indication in a downlink control information message or a media access control (MAC) control element (CE). Receiving a signal indicating the measurement bandwidth of the positioning reference signal may include receiving an indication of a bandwidth portion. The one or more positioning reference signals may have a bandwidth greater than the measurement bandwidth of the positioning reference signal. The one or more positioning reference signals may have a bandwidth equal to the measurement bandwidth of the positioning reference signal. Receiving a signal indicating the measurement bandwidth of the positioning reference signal may include receiving an indication of one of a plurality of pre-specified positioning reference signal measurement bandwidths. Receiving a signal indicating the measurement bandwidth of the positioning reference signal may include receiving an indication of the size of a variable positioning reference signal measurement bandwidth. The method may include transmitting timing measurement quality and an indication of the current positioning reference signal measurement bandwidth to a base station. The positioning reference signal measurement bandwidth and the one or more positioning reference signals may be associated with a frequency layer. A quality of service indication may be transmitted to the base station.

[0012] An example apparatus according to this disclosure includes: a memory, at least one transceiver, and at least one processor, the at least one processor being communicatively coupled to the memory and the at least one transceiver and configured to: determine a target accuracy, determine a positioning reference signal bandwidth based on the target accuracy, and transmit a positioning reference signal based on the positioning reference signal bandwidth.

[0013] Implementations of such devices may include one or more of the following features: The positioning reference signal bandwidth may be associated with a positioning frequency layer. The at least one processor may be further configured to determine the quality of service used for positioning. The at least one processor may be further configured to receive the target accuracy from a network server. The at least one processor may be further configured to provide an indication of the positioning reference signal bandwidth to the user equipment. The at least one processor may be further configured to provide the indication in a downlink control information message or a media access control (MAC) control element (CE). The at least one processor may be further configured to obtain the positioning reference signal bandwidth from a data structure.

[0014] An example apparatus according to the present disclosure includes: a memory, at least one transceiver, and at least one processor, the at least one processor being communicatively coupled to the memory and the at least one transceiver and configured to: determine a target accuracy, determine a positioning reference signal measurement bandwidth based on the target accuracy, and transmit a signal indicating the positioning reference signal measurement bandwidth.

[0015] Implementations of such devices may include one or more of the following features: The at least one processor may be further configured to determine the quality of service for positioning. The at least one processor may be further configured to receive the target accuracy from a network server. The at least one processor may be further configured to receive the target accuracy from user equipment. A frequency layer may be associated with multiple positioning reference signal measurement bandwidths, and the signal indicating the positioning reference signal measurement bandwidth may indicate one or more positioning reference signal measurement bandwidths. The at least one processor may be further configured to provide indication in a downlink control information message or a media access control (MAC) control element (CE). The at least one processor may be further configured to provide indication of a bandwidth portion. The at least one processor may be further configured to transmit positioning reference signals in a bandwidth greater than the positioning reference signal measurement bandwidth. The at least one processor may be further configured to transmit positioning reference signals in a bandwidth equal to the positioning reference signal measurement bandwidth. The at least one processor may be further configured to provide indication of one of multiple pre-specified positioning reference signal measurement bandwidths. The at least one processor may be further configured to provide indication of the size of a variable positioning reference signal measurement bandwidth. The at least one processor may be further configured to receive timing measurement quality and an indication of the current positioning reference signal measurement bandwidth from the user equipment.

[0016] An example apparatus according to this disclosure includes: a memory, at least one transceiver, and at least one processor, the at least one processor being communicatively coupled to the memory and the at least one transceiver and configured to: receive a signal indicating a positioning reference signal measurement bandwidth, receive one or more positioning reference signals, and obtain a positioning measurement for at least one of the one or more positioning reference signals based at least in part on the positioning reference signal measurement bandwidth.

[0017] Implementations of such devices may include one or more of the following features: The at least one processor may be further configured to receive an indication in a downlink control information message or a media access control (MAC) control element (CE). The at least one processor may be further configured to receive an indication of a bandwidth portion. The one or more positioning reference signals may have a bandwidth greater than the positioning reference signal measurement bandwidth. The one or more positioning reference signals may have a bandwidth equal to the positioning reference signal measurement bandwidth. The at least one processor may be further configured to receive an indication of one of a plurality of pre-specified positioning reference signal measurement bandwidths. The at least one processor may be further configured to receive an indication of the size of a variable positioning reference signal measurement bandwidth. The at least one processor may be further configured to transmit timing measurement quality and an indication of the current positioning reference signal measurement bandwidth to the base station. The positioning reference signal measurement bandwidth and the one or more positioning reference signals may be associated with a frequency layer. The at least one processor may be further configured to transmit a quality of service indication to the base station.

[0018] An example device for positioning reference signal bandwidth adaptation according to the present disclosure includes means for determining a target accuracy, means for determining a positioning reference signal bandwidth based on the target accuracy, and means for transmitting a positioning reference signal based on the positioning reference signal bandwidth.

[0019] An example apparatus according to the present disclosure for measuring bandwidth using a positioning reference signal within a frequency layer includes means for determining a target accuracy, means for determining the positioning reference signal measurement bandwidth based on the target accuracy, and means for transmitting a signal indicating the positioning reference signal measurement bandwidth.

[0020] An example apparatus for obtaining positioning measurements according to the present disclosure includes means for receiving a signal indicating a positioning reference signal measurement bandwidth, means for receiving one or more positioning reference signals, and means for obtaining a positioning measurement for at least one of the one or more positioning reference signals based at least in part on the positioning reference signal measurement bandwidth.

[0021] An example non-transient processor-readable storage medium according to the present disclosure includes processor-readable instructions configured to adapt one or more processors to a positioning reference signal bandwidth, including code for determining a target accuracy, code for determining the positioning reference signal bandwidth based on the target accuracy, and code for transmitting a positioning reference signal based on the positioning reference signal bandwidth.

[0022] An example non-transient processor-readable storage medium according to the present disclosure includes processor-readable instructions configured to cause one or more processors to measure bandwidth using a positioning reference signal within a frequency layer, including code for determining a target accuracy, code for determining the positioning reference signal measurement bandwidth based on the target accuracy, and code for transmitting a signal indicating the positioning reference signal measurement bandwidth.

[0023] An example non-transient processor-readable storage medium according to the present disclosure includes processor-readable instructions configured to enable one or more processors to obtain positioning measurements, including code for receiving a signal indicating a positioning reference signal measurement bandwidth, code for receiving one or more positioning reference signals, and code for obtaining positioning measurements for at least one of the one or more positioning reference signals based at least in part on the positioning reference signal measurement bandwidth.

[0024] The items and / or techniques described herein may provide one or more of the following capabilities, as well as others not mentioned. A frequency layer may be configured with one or more Positioning Reference Signal (PRS) bandwidths. These PRS bandwidths may be used to transmit PRS resources. The accuracy of positioning measurements may be proportional to these PRS bandwidths. These PRS bandwidths may be adapted based on positioning quality of service requirements. User equipment may be configured with PRS measurement bandwidths. These PRS measurement bandwidths may be adapted based on positioning quality of service requirements. Reduction in PRS bandwidth and / or PRS measurement bandwidth may reduce the power required by the receiver in the user equipment. This power reduction may increase the power efficiency of the user equipment. Other capabilities may be provided, and not every implementation according to this disclosure is required to provide any of the capabilities discussed, let alone all of them. Attached Figure Description

[0025] Figure 1 This is a simplified diagram of an example wireless communication system.

[0026] Figure 2 yes Figure 1 The diagram shows a block diagram of the components of an example user equipment.

[0027] Figure 3 yes Figure 1 The diagram shows a block diagram of the components of an example transmit / receive point.

[0028] Figure 4 yes Figure 1 The diagram shows the components of the example server.

[0029] Figure 5A and 5B The example downlink positioning reference signal resource set was explained.

[0030] Figure 6 This is an explanation of the example subframe format used for positioning reference signal transmission.

[0031] Figure 7 This is a diagram of an example frequency layer.

[0032] Figure 8A This is an example data structure used to relate the positioning reference signal bandwidth and service quality.

[0033] Figure 8B This is an explanation of the example positioning reference signal bandwidth and the positioning reference signal measurement bandwidth.

[0034] Figure 9 This is a diagram illustrating an example of a bandwidth adaptation for positioning reference signal measurements within the frequency layer.

[0035] Figure 10 This is an example diagram of a bandwidth adaptation for positioning reference signal measurements across different frequency layers.

[0036] Figure 11A This is a diagram illustrating several examples of the bandwidth measurement of discrete positioning reference signals within the frequency layer.

[0037] Figure 11B This is a diagram illustrating an example of measuring the bandwidth of a variable positioning reference signal within a frequency layer.

[0038] Figure 12 This is a process flow for an example method of adapting the bandwidth of a location reference signal based on the quality of location services.

[0039] Figure 13 This is a process flow of an example method for measuring bandwidth using a positioning reference signal within the frequency layer.

[0040] Figure 14 This is a process flow for an example method of obtaining positioning measurements within the measurement bandwidth of a positioning reference signal. Detailed Implementation

[0041] This paper discusses techniques for reducing the bandwidth required to receive reference signals from user equipment (UE). A base station can be configured to transmit reference signals, such as positioning reference signals (PRS), in one or more frequency bands. These bands can be in different frequency layers and may include different component carriers. The base station can be configured with one or more sets of PRS resources associated with the positioning frequency layer. The bandwidth of the PRS resources may vary in different positioning frequency layers. Typically, the accuracy of positioning measurements increases proportionally to the bandwidth of the PRS. The power required to receive the PRS may also increase with increasing bandwidth. In one example, the base station may select the frequency layer and the corresponding PRS bandwidth based on the UE's positioning accuracy requirements. The bandwidth of the PRS transmitted by one or more base stations and received by the UE may vary based on the accuracy required by the application. In another example, the UE may be configured to receive only the portion of the PRS with the PRS measurement bandwidth. The UE may include multiple different PRS measurement bandwidths, each achieving a different measurement accuracy. For example, a larger PRS measurement bandwidth provides more accurate measurements compared to a smaller PRS measurement bandwidth. The selection of the PRS measurement bandwidth may be based on application requirements and / or network signaling. Reducing the PRS bandwidth and PRS measurement bandwidth in the frequency layer reduces the power required for the UE to receive the PRS. This power reduction increases the UE's efficiency and extends its operating time on a single battery charge. These techniques and configurations are examples, and other techniques and configurations can be used.

[0042] Reference Figure 1Examples of communication system 100 include UE 105, radio access network (RAN) 135 (here, fifth-generation (5G) next-generation (NG) RAN (NG-RAN)), and 5G core network (5GC) 140. UE 105 can be, for example, an IoT device, a location tracker device, a cellular phone, or other device. The 5G network can also be referred to as a new radio (NR) network; NG-RAN 135 can be referred to as a 5G RAN or NR RAN; and 5GC 140 can be referred to as an NG core network (NGC). Standardization of NG-RAN and 5GC is underway within the 3rd Generation Partnership Project (3GPP). Accordingly, NG-RAN 135 and 5GC 140 can comply with current or future standards from 3GPP for 5G support. NG-RAN 135 can be another type of RAN, such as 3G RAN, 4G Long Term Evolution (LTE) RAN, etc. Communication system 100 may utilize information from constellation 185 of spacecraft (SVs) 190, 191, 192, 193 of a satellite positioning system (SPS) (e.g., a Global Navigation Satellite System (GNSS)), such as GPS, GLONASS, Galileo, or BeiDou, or some other local or regional SPS (such as the Indian Regional Navigation Satellite System (IRNSS), the European Geostationary Navigation Coverage Service (EGNOS), or the Wide Area Augmentation System (WAAS)). Additional components of communication system 100 are described below. Communication system 100 may include additional or replacement components.

[0043] like Figure 1 As shown, NG-RAN 135 includes NR B-nodes (gNB) 110a, 110b and a next-generation evolved B-node (ng-eNB) 114, and 5GC 140 includes Access and Mobility Management Functions (AMF) 115, Session Management Functions (SMF) 117, Location Management Functions (LMF) 120 and Gateway Mobility Location Center (GMLC) 125. gNBs 110a, 110b and ng-eNB 114 are communicatively coupled to each other, each configured to conduct bidirectional wireless communication with UE 105, and each communicatively coupled to and configured to conduct bidirectional communication with AMF 115. AMF 115, SMF 117, LMF 120 and GMLC 125 are communicatively coupled to each other, and the GMLC is communicatively coupled to an external client 130. SMF 117 can be used as the initial contact point for Service Control Functions (SCF) (not shown) to create, control and delete media sessions.

[0044] Figure 1A general explanation of each component is provided, wherein any or all of the components may be used appropriately, and each component may be repeated or omitted as needed. Specifically, although one UE 105 is explained, many UEs (e.g., hundreds, thousands, millions, etc.) may be used in communication system 100. Similarly, communication system 100 may include a larger (or smaller) number of SVs (i.e., more or fewer than the four SVs 190-193 shown), gNB 110a, 110b, ng-eNB 114, AMF 115, external client 130, and / or other components. The explained connections connecting the various components in communication 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, components may be rearranged, combined, separated, replaced, and / or omitted depending on the desired functionality.

[0045] Although Figure 1 While 5G-based networks have been described, similar network implementations and configurations can be used for other communication technologies, such as 3G, Long Term Evolution (LTE), etc. The implementations described herein (for 5G technologies and / or for one or more other communication technologies and / or protocols) can be used to transmit (or broadcast) directional synchronization signals, receive and measure directional signals at a UE (e.g., UE 105), and / or provide location assistance to UE 105 (via GMLC 125 or other location servers), and / or calculate the location of UE 105 at a location-capable device (such as UE 105, gNB 110a, 110b, or LMF 120) based on measurement parameters of such directional transmissions received at UE 105. Gateway Mobile Location Center (GMLC) 125, Location Management Function (LMF) 120, Access and Mobility Management Function (AMF) 115, SMF 117, ng-eNB (evolved B-node) 114, and gNB (g B-node) 110a, 110b are examples and may be replaced by or include various other location server functions and / or base station functions in various embodiments.

[0046] UE 105 may include and / or may be referred to as a device, mobile device, wireless device, mobile terminal, terminal, mobile station (MS), Secure User Plane Positioning Enabled (SUPL) terminal (SET), or some other name. Furthermore, UE 105 may correspond to a cellular phone, smartphone, laptop device, tablet device, PDA, tracking device, navigation device, Internet of Things (IoT) device, asset tracker, health monitor, security system, smart city sensor, smart meter, wearable tracker, or some other portable or mobile device. Typically, although not mandatory, UE 105 may support one or more Radio Access Technologies (RATs) such as Global System for Mobile Communications (GSM), Code Division Multiple Access (CDMA), Wideband CDMA (WCDMA), LTE, High Rate Packet Data (HRPD), IEEE 802.11 WiFi (also known as Wi-Fi). Wireless communication can be achieved using technologies such as Bit-Band (BT), WiMAX, and 5G New Radio (NR) (e.g., using NG-RAN 135 and 5GC 140). UE 105 can support wireless communication using a Wireless Local Area Network (WLAN), which can connect to other networks (e.g., the Internet) using, for example, digital subscriber line (DSL) or packet cable. Using one or more of these RATs allows UE 105 (e.g., via elements of 5GC 140) to... Figure 1 (not shown in the diagram) or possibly via GMLC 125, communicate with external client 130 and / or allow external client 130 (e.g., via GMLC 125) to receive location information about UE 105.

[0047] UE 105 may include a single entity or may include multiple entities, such as in a personal area network, where the user may employ audio, video, and / or data I / O (input / output) devices, and / or body sensors, as well as separate wired or wireless modems. An estimate of the location of UE 105 may be referred to as location, location estimation, location locking, lock, positioning, location estimation, or location locking, and may be geographic, providing location coordinates (e.g., latitude and longitude) of UE 105, which may or may not include an elevation component (e.g., height above sea level; height above ground level, floor level, or basement level, or depth below). Alternatively, the location of UE 105 may be expressed as a municipal location (e.g., expressed as a postal address or a designation of a point or smaller area within a building (such as a specific room or floor)). The location of UE 105 may be expressed as an area or volume (geographically or municipally defined) within which UE 105 is expected to be located with a certain probability or confidence level (e.g., 67%, 95%, etc.). The location of UE 105 can be expressed as a relative location, which includes, for example, distance and direction from a known location. A relative location can be expressed as relative coordinates (e.g., X, Y (and Z) coordinates) defined relative to an origin at a known location, which can be, for example, geographically, municipally, or with reference to a point, area, or volume indicated, for example, on a map, floor plan, or building plan. In the description contained herein, the use of the term "location" can include any of these variations unless otherwise indicated. When calculating the location of the UE, local x, y, and possibly z coordinates are typically solved, and then (if necessary) the local coordinates are converted to absolute coordinates (e.g., with respect to latitude, longitude, and elevation above or below mean sea level).

[0048] UE 105 can be configured to communicate with other entities using one or more of a variety of technologies. UE 105 can be configured to indirectly connect to one or more communication networks via one or more device-to-device (D2D) peer-to-peer (P2P) links. D2D P2P links can use any suitable D2D radio access technology (RAT) (such as LTE Direct (LTE-D), WiFi Direct (WiFi-D), etc.). Supported by (etc.). One or more UEs in a group of UEs utilizing D2D communication may be within the geographic coverage area of ​​a Transmit / Receive Point (TRP) (such as one or more of gNB 110a, 110b and / or ng-eNB 114). Other UEs in the group may be outside such geographic coverage areas or may be unable to receive transmissions from the base station for other reasons. A group of UEs communicating via D2D communication may utilize a one-to-many (1:M) system, where each UE may transmit to other UEs in the group. The TRP facilitates the scheduling of resources for D2D communication. In other cases, D2D communication may be performed between UEs without involving a TRP.

[0049] Figure 1 The base stations (BSs) in the NG-RAN 135 shown include NRB nodes (referred to as gNBs 110a and 110b). Each pair of gNBs 110a and 110b in the NG-RAN 135 can be interconnected via one or more other gNBs. Access to the 5G network is provided to UE 105 via wireless communication between UE 105 and one or more of the gNBs 110a and 110b. gNBs 110a and 110b can use 5G to provide wireless communication access to the 5GC 140 on behalf of UE 105. Figure 1 In this context, it is assumed that the serving gNB of UE 105 is gNB 110a, but another gNB (e.g., gNB 110b) may act as the serving gNB or as a secondary gNB to provide additional throughput and bandwidth to UE 105 if UE 105 moves to another location.

[0050] Figure 1 The base station (BS) in NG-RAN 135 shown may include ng-eNB 114 (also referred to as a next-generation evolved B node). ng-eNB 114 may be connected to one or more of gNBs 110a and 110b in NG-RAN 135 (possibly via one or more other gNBs and / or one or more other ng-eNBs). ng-eNB 114 may provide LTE radio access and / or evolved LTE (eLTE) radio access to UE 105. One or more of gNBs 110a, 110b and / or ng-eNB 114 may be configured to act as a location-only beacon, transmitting signals to aid in determining the location of UE 105, but may not be able to receive signals from UE 105 or other UEs.

[0051] A BS (e.g., gNB 110a, gNB 110b, and ng-eNB 114) may each include one or more TRPs. For example, each sector within a BS cell may include a TRP, but multiple TRPs may share one or more components (e.g., share a processor but have separate antennas). Communication system 100 may include macro TRPs, or communication system 100 may have different types of TRPs, such as macro, pico, and / or femto TRPs. Macro TRPs may cover a relatively large geographic area (e.g., a radius of several kilometers) and allow unrestricted access by terminals with service subscriptions. Pico TRPs may cover a relatively small geographic area (e.g., a pico cell) and allow unrestricted access by terminals with service subscriptions. Femto or home TRPs may cover a relatively small geographic area (e.g., a femto cell) and allow restricted access by terminals associated with that femto cell (e.g., a user's terminal in a residence).

[0052] As mentioned, although Figure 1 The diagram depicts nodes configured to communicate according to 5G communication protocols, but nodes configured to communicate according to other communication protocols (such as, for example, LTE or IEEE 802.11x protocols) can also be used. For example, in an evolved packet system (EPS) providing LTE radio access to UE 105, the RAN may include an evolved universal mobile telecommunications system (UMTS) terrestrial radio access network (E-UTRAN), which may include base stations containing evolved B-nodes (eNBs). The core network for the EPS may include an evolved packet core (EPC). The EPS may include the E-UTRAN plus the EPC, where the E-UTRAN corresponds to... Figure 1 NG-RAN 135 and EPC corresponds to Figure 1 5GC 140 in the middle.

[0053] gNB 110a, 110b, and ng-eNB 114 can communicate with AMF 115; for positioning functionality, AMF 115 communicates with LMF 120. AMF 115 supports the mobility of UE 105 (including cell changes and handover) and can participate in supporting signaling connections to UE 105 and possibly data and voice bearers for UE 105. LMF 120 can communicate directly with UE 105, for example, wirelessly. LMF 120 can support the positioning of UE 105 when UE 105 accesses NG-RAN 135 and can support various positioning protocols / methods, such as Auxiliary GNSS (A-GNSS), Observed Time Difference of Arrival (OTDOA), Real-Time Kinematics (RTK), Precise Point Positioning (PPP), Differential GNSS (DGNSS), Enhanced Cellular ID (E-CID), Angle of Arrival (AOA), Angle of Departure (AOD), and / or other positioning methods. LMF 120 can process location service requests for UE 105, for example, received from AMF 115 or GMLC 125. LMF 120 can connect to AMF 115 and / or GMLC 125. LMF 120 may be referred to by other names, such as Location Manager (LM), Location Function (LF), Commercial LMF (CLMF), or Value-Added LMF (VLMF). Nodes / systems implementing LMF 120 may additionally or alternatively implement other types of location support modules, such as Enhanced Serving Mobility Location Center (E-SMLC) or Secure User Plane Positioning (SUPL) Location Platform (SLP). At least some of the location functionality (including the derivation of the location of UE 105) can be performed at UE 105 (e.g., using signal measurements obtained by UE 105 against signals transmitted by radio nodes (such as gNB 110a, 110b, and / or ng-eNB 114), and / or auxiliary data provided to UE 105, for example, by LMF 120).

[0054] GMLC 125 can support location requests for UE 105 received from external client 130 and can forward such requests to AMF 115 for forwarding to LMF 120, or can forward them directly to LMF 120. A location response from LMF 120 (e.g., containing a location estimate for UE 105) can be returned to GMLC 125 directly or via AMF 115, and GMLC 125 can then return the location response (e.g., containing the location estimate) to external client 130. GMLC 125 is shown connected to both AMF 115 and LMF 120, but in some implementations, 5GC 140 may support only one of these connections.

[0055] like Figure 1 Further explanation is provided: the LMF 120 can use the new Radio Positioning Protocol A (which may be referred to as NPPa or NRPPa) to communicate with gNB 110a, 110b, and / or ng-eNB 114. This new Radio Positioning Protocol A is defined in 3GPP Technical Specification (TS) 38.455. NRPPa can be the same as, similar to, or an extension of the LTE Positioning Protocol A (LPPa) defined in 3GPP TS 36.455, where NRPPa messages are transmitted via AMF 115 between gNB 110a (or gNB 110b) and the LMF 120, and / or between ng-eNB 114 and the LMF 120. Figure 1 As further explained, LMF 120 and UE 105 can communicate using the LTE Location Protocol (LPP), which is defined in 3GPP TS 36.355. LMF 120 and UE 105 can also communicate using a new radio positioning protocol (which may be referred to as NPP or NRPP), which may be the same as, similar to, or an extension of LPP. Here, LPP and / or NPP messages can be transmitted between UE 105 and LMF 120 via AMF 115 and UE 105's serving gNB 110a, 110b, or serving ng-eNB 114. For example, LPP and / or NPP messages can be transmitted between LMF 120 and AMF 115 using the 5G Location Services Application Protocol (LCS AP), and between AMF 115 and UE 105 using the 5G Non-Access Stratum (NAS) protocol. The LPP and / or NPP protocols can be used to support the location of UE 105 using UE-assisted and / or UE-based location methods (such as A-GNSS, RTK, OTDOA, and / or E-CID). The NRPPa protocol can be used to support the location of UE 105 using network-based location methods (such as E-CID) (e.g., in conjunction with measurements obtained by gNB110a, 110b, or ng-eNB 114) and / or can be used by LMF 120 to obtain location-related information from gNB 110a, 110b, and / or ng-eNB 114, such as defining parameters for directional SS transmissions from gNB 110a, 110b, and / or ng-eNB 114.

[0056] Using a UE-assisted positioning method, UE 105 can obtain location measurements and send these measurements to a location server (e.g., LMF 120) for calculating a location estimate for UE 105. For example, location measurements may include one or more of the following: Received Signal Strength Indication (RSSI), Round-Trip Time (RTT), Reference Signal Time Difference (RSTD), Reference Signal Received Power (RSRP), and / or Reference Signal Received Quality (RSRQ) for gNB 110a, 110b, ng-eNB 114, and / or WLAN AP. Location measurements may additionally or alternatively include measurements of GNSS pseudorange, code phase, and / or carrier phase for SV 190-193.

[0057] Using a UE-based positioning method, UE 105 can obtain a location measurement (e.g., which may be the same as or similar to a location measurement for a UE-assisted positioning method) and can calculate the location of UE 105 (e.g., by means of auxiliary data received from a location server (such as LMF 120) or broadcast by gNB 110a, 110b, ng-eNB 114 or other base stations or APs).

[0058] Using a network-based positioning method, one or more base stations (e.g., gNB 110a, 110b, and / or ng-eNB 114) or APs can obtain location measurements (e.g., measurements of RSSI, RTT, RSRP, RSRQ, or Time of Arrival (TOA) of signals transmitted by UE 105) and / or can receive measurements obtained by UE 105. These base stations or APs can then transmit these measurements to a location server (e.g., LMF 120) for calculating a location estimate for UE 105.

[0059] The information provided to the LMF 120 by the gNB 110a, 110b and / or ng-eNB 114 using NRPPa may include timing and configuration information for directional SS transmissions, as well as location coordinates. The LMF 120 may provide some or all of this information as supplementary data to the UE 105 in LPP and / or NPP messages via NG-RAN 135 and 5GC 140.

[0060] The LPP or NPP message sent from LMF 120 to UE 105 may instruct UE 105 to perform any of a variety of tasks, depending on the desired functionality. For example, the LPP or NPP message may contain instructions for UE 105 to obtain measurements for GNSS (or A-GNSS), WLAN, E-CID, and / or OTDOA (or some other positioning method). In the case of E-CID, the LPP or NPP message may instruct UE 105 to obtain one or more measurement parameters (e.g., beam ID, beamwidth, average angle, RSRP, RSRQ measurements) of directional signals transmitted within a specific cell supported by one or more of gNB 110a, 110b, and / or ng-eNB 114 (or supported by some other type of base station (such as eNB or WiFi AP)). UE 105 can send these measurement parameters back to LMF 120 via service gNB110a (or service ng-eNB 114) and AMF 115 in an LPP or NPP message (e.g., within a 5G NAS message).

[0061] As mentioned, while a communication system 100 is described in relation to 5G technology, the communication system 100 can be implemented to support other communication technologies (such as GSM, WCDMA, LTE, etc.) used to support and interact with mobile devices (such as UE 105) (e.g., to enable voice, data, location, and other functionalities). In some such embodiments, the 5GC 140 can be configured to control different air interfaces. For example, non-3GPP interoperability functions (N3IWF) in the 5GC 150 can be used. Figure 1(Not shown) Connect 5GC 140 to a WLAN. For example, the WLAN may support IEEE 802.11 WiFi access for UE 105 and may include one or more WiFi APs. Here, N3IWF may connect to the WLAN and other components in 5GC 140, such as AMF 115. In some embodiments, both NG-RAN 135 and 5GC 140 may be replaced by one or more other RANs and one or more other core networks. For example, in EPS, NG-RAN 135 may be replaced by E-UTRAN containing eNBs, and 5GC 140 may be replaced by EPC containing a Mobility Management Entity (MME) instead of AMF 115, an E-SMLC instead of LMF 120, and a GMLC similar to GMLC 125. In such EPS, the E-SMLC may use LPPa instead of NRPPa to send location information to and receive location information from eNBs in the E-UTRAN, and may use LPP to support UE 105's positioning. In these other embodiments, the location of UE 105 using directional PRS can be supported in a manner similar to that described herein for 5G networks, the difference being that the functions and procedures described herein for gNB 110a, 110b, ng-eNB 114, AMF 115 and LMF120 can be applied alternatively to other network elements, such as eNB, WiFi AP, MME and E-SMLC, in some cases.

[0062] As mentioned, in some embodiments, positioning functionality can be achieved at least in part using directional SS beams transmitted by base stations (such as gNB 110a, 110b and / or ng-eNB 114) to determine the location of the UE (e.g., Figure 1 Within the range of UE 105. In some instances, the UE can use directional SS beams from multiple base stations (such as gNB 110a, 110b, ng-eNB 114, etc.) to calculate the UE's location.

[0063] Also refer to Figure 2UE 200 is an example of UE 105 and includes a computing platform containing processor 210, a memory 211 containing software (SW) 212, one or more sensors 213, a transceiver interface 214 for transceivers 215 (which include wireless transceivers 240 and / or wired transceivers 250), a user interface 216, a satellite positioning system (SPS) receiver 217, a camera 218, and a positioning (motion) device (PMD) 219. The processor 210, memory 211, sensors 213, transceiver interface 214, user interface 216, SPS receiver 217, camera 218, and positioning (motion) device (PMD) 219 can be communicatively coupled to each other via a bus 220 (which can be configured, for example, for optical and / or electrical communication). One or more of the devices shown can be omitted from UE 200 (e.g., camera 218, positioning (motion) device (PMD) 219, and / or one or more sensors 213, etc.). Processor 210 may include one or more smart hardware devices (e.g., central processing unit (CPU), microcontroller, application-specific integrated circuit (ASIC), etc.). Processor 210 may include multiple processors, including a general-purpose / application processor 230, a digital signal processor (DSP) 231, a modem processor 232, a video processor 233, and / or a sensor processor 234. One or more of processors 230-234 may include multiple devices (e.g., multiple processors). For example, sensor processor 234 may include processors for radar, ultrasonic, and / or lidar, etc. Modem processor 232 may support dual SIM / dual connectivity (or even more SIMs). For example, one SIM (subscriber identity module or subscriber identification module) may be used by the original equipment manufacturer (OEM), and another SIM may be used by the end user of UE 200 to obtain connectivity. Memory 211 is a non-transient storage medium, which may include random access memory (RAM), flash memory, disk storage, and / or read-only memory (ROM), etc. Memory 211 stores software 212, which may be processor-readable, processor-executable software code containing instructions configured to cause processor 210 to perform the various functions described herein when executed. Alternatively, software 212 may not be directly executable by processor 210, but may be configured (e.g., when compiled and executed) to cause processor 210 to perform various functions. This specification may refer to processor 210 performing functions, but this includes other implementations, such as processor 210 performing software and / or firmware implementations. This specification may refer to processor 210 performing functions as a shorthand for one or more of processors 230-234 performing that function. This specification may refer to UE 200 performing functions as a shorthand for one or more appropriate components of UE 200 performing that function.Processor 210 may include memory with stored instructions as a supplement to and / or replacement of memory 211. The functionality of processor 210 is discussed more fully below.

[0064] Figure 2 The configuration of UE 200 shown is exemplary and not intended to limit the scope of this disclosure (including the claims), and other configurations may be used. For example, an exemplary configuration of the UE includes one or more of processors 230-234 in processor 210, memory 211, and wireless transceiver 240. Other exemplary configurations include one or more of processors 230-234 in processor 210, memory 211, wireless transceiver 240, and one or more of the following: (a) sensors 213, user interface 216, SPS receiver 217, camera 218, PMD 219, and / or wired transceiver 250.

[0065] UE 200 may include a modem processor 232, which may be capable of performing baseband processing on signals received and downconverted by transceiver 215 and / or SPS receiver 217. Modem processor 232 may also perform baseband processing on signals to be upconverted for transmission by transceiver 215. Alternatively or alternatively, baseband processing may be performed by general-purpose processor 230 and / or DSP 231. However, other configurations may be used to perform baseband processing.

[0066] UE 200 may include sensors 213, which may include, for example, an inertial measurement unit (IMU) 270, one or more magnetometers 271, and / or one or more environmental sensors 272. IMU 270 may include one or more inertial sensors, such as one or more accelerometers 273 (e.g., those collectively responding to acceleration of UE 200 in three dimensions) and / or one or more gyroscopes 274. The magnetometers may provide measurements to determine orientation (e.g., relative to magnetic north and / or true north) that can be used for any of a variety of purposes (e.g., to support one or more compass applications). Environmental sensors 272 may include, for example, one or more temperature sensors, one or more barometric pressure sensors, one or more ambient light sensors, one or more camera imagers, and / or one or more microphones, etc. Sensors 213 may generate analog and / or digital signals, indications of which may be stored in memory 211 and processed by DSP 231 and / or general-purpose processor 230 to support one or more applications (such as, for example, applications involving positioning and / or navigation operations).

[0067] Sensors 213 can be used for relative position measurement, relative position determination, motion determination, etc. Information detected by sensors 213 can be used for motion detection, relative displacement, dead reckoning, sensor-based position determination, and / or sensor-assisted position determination. Sensors 213 can be used to determine whether the UE 200 is stationary or moving and / or whether to report certain useful information related to the mobility of the UE 200 to the LMF 120. For example, based on information obtained / measured by sensors 213, the UE 200 can notify / report to the LMF 120 that the UE 200 has detected movement or that the UE 200 has moved, and report relative displacement / distance (e.g., via dead reckoning implemented by sensors 213, or sensor-based position determination, or sensor-assisted position determination). In another example, for relative positioning information, sensors / IMUs can be used to determine the angle and / or orientation of another device relative to the UE 200, etc.

[0068] IMU 270 can be configured to provide measurements of the direction and / or velocity of motion of UE 200, which can be used for relative position determination. For example, one or more accelerometers 273 and / or one or more gyroscopes 274 of IMU 270 can detect the linear acceleration and rotational velocity of UE 200, respectively. The linear acceleration and rotational velocity measurements of UE 200 can be integrated over time to determine the instantaneous direction of motion and displacement of UE 200. The instantaneous direction of motion and displacement can be integrated to track the position of UE 200. For example, a reference position of UE 200 at a given moment can be determined, for example, using SPS receiver 217 (and / or by some other means), and measurements acquired from (the) accelerometers 273 and (the) gyroscopes 274 after that moment can be used for dead reckoning to determine the current position of UE 200 based on the movement (direction and distance) of UE 200 relative to that reference position.

[0069] Magnetometers 271 can determine the intensity of magnetic fields in different directions, which can be used to determine the orientation of the UE 200. For example, this orientation can be used to provide a digital compass for the UE 200. Magnetometers 271 may include a two-dimensional magnetometer configured to detect and provide an indication of magnetic field intensity in two orthogonal dimensions. Alternatively or alternatively, magnetometers 271 may include a three-dimensional magnetometer configured to detect and provide an indication of magnetic field intensity in three orthogonal dimensions. Magnetometers 271 may provide means for sensing magnetic fields and, for example, providing a magnetic field indication to processor 210.

[0070] Transceiver 215 may include a wireless transceiver 240 and a wired transceiver 250 configured to communicate with other devices via wireless and wired connections, respectively. For example, wireless transceiver 240 may include a transmitter 242 and a receiver 244 coupled to one or more antennas 246 for transmitting (e.g., on one or more uplink channels and / or one or more sidelink channels) and / or receiving (e.g., on one or more downlink channels and / or one or more sidelink channels) wireless signals 248 and converting signals from wireless signals 248 to wired (e.g., electrical and / or optical) signals and from wired (e.g., electrical and / or optical) signals to wireless signals 248. Thus, transmitter 242 may include multiple transmitters that may be discrete components or combined / integrated components, and / or receiver 244 may include multiple receivers that may be discrete components or combined / integrated components. The wireless transceiver 240 can be configured to transmit signals according to various Radio Access Technologies (RATs) (e.g., with TRP and / or one or more other devices), such as 5G New Radio (NR), GSM (Global System for Mobile Communications), UMTS (Universal Mobile Telecommunications System), AMPS (Advanced Mobile Telephone Systems), CDMA (Code Division Multiple Access), WCDMA (Wideband CDMA), LTE (Long Term Evolution), LTE Direct (LTE-D), 3GPP LTE-Vehicle-to-Everything (V2X), (PC5), V2C (Uu), IEEE 802.11 (including IEEE 802.11p), WiFi, and WiFi Direct (WiFi-D). Zigbee, etc. NR systems can be configured to operate on different frequency layers (such as FR1 (e.g., 410-7125MHz) and FR2 (e.g., 24.25-52.6GHz)) and can be extended to new frequency bands (such as sub-6GHz and / or 100GHz and higher frequency bands (e.g., FR2x, FR3, FR4)). Wired transceiver 250 may include transmitter 252 and receiver 254 configured for wired communication (e.g., with NG-RAN 135) to, for example, send and receive communication to and from gNB 110a. Transmitter 252 may include multiple transmitters, which may be discrete components or combined / integrated components, and / or receiver 254 may include multiple receivers, which may be discrete components or combined / integrated components. Wired transceiver 250 may be configured for, for example, optical and / or electrical communication. Transceiver 215 may be communicatively coupled to transceiver interface 214 (e.g., via optical and / or electrical connections). Transceiver interface 214 may be at least partially integrated with transceiver 215.

[0071] User interface 216 may include one or more of a number of devices, such as, for example, a speaker, a microphone, a display device, a vibration device, a keyboard, a touchscreen, etc. User interface 216 may include any device that includes more than one of these devices. User interface 216 may be configured to enable a user to interact with one or more applications stored in the main memory of UE 200. For example, user interface 216 may store indications of analog and / or digital signals in memory 211 in response to actions from the user, for processing by DSP 231 and / or general-purpose processor 230. Similarly, applications in the main memory of UE 200 may store indications of analog and / or digital signals in memory 211 to present output signals to the user. User interface 216 may include audio input / output (I / O) devices, including, for example, speakers, microphones, digital-to-analog circuitry systems, analog-to-digital circuitry systems, amplifiers, and / or gain control circuitry systems (any device including more than one of these devices). Other configurations of the audio I / O devices may be used. Alternatively, the user interface 216 may include one or more touch sensors that respond to touch and / or pressure on, for example, the keyboard and / or touchscreen of the user interface 216.

[0072] SPS receiver 217 (e.g., a Global Positioning System (GPS) receiver) can receive and acquire SPS signal 260 via SPS antenna 262. SPS antenna 262 is configured to convert the wireless SPS signal 260 into a wired signal (e.g., an electrical or optical signal) and can be integrated with antenna 246. SPS receiver 217 can be configured to process the acquired SPS signal 260 fully or partially to estimate the location of UE 200. For example, SPS receiver 217 can be configured to determine the location of UE 200 by performing trilateration using SPS signal 260. SPS receiver 217 can be combined with general-purpose processor 230, memory 211, DSP 231, and / or one or more dedicated processors (not shown) to process the acquired SPS signal fully or partially and / or calculate the estimated location of UE 200. Memory 211 may store indications (e.g., measurements) of SPS signal 260 and / or other signals (e.g., signals acquired from wireless transceiver 240) for use during positioning operations. General-purpose processor 230, DSP 231, and / or one or more dedicated processors, and / or memory 211 may provide or support a position engine for processing measurements to estimate the position of UE 200.

[0073] UE 200 may include a camera 218 for capturing still or moving images. Camera 218 may include, for example, an imaging sensor (e.g., a charge-coupled device or a CMOS imager), lenses, analog-to-digital circuitry, frame buffers, etc. Additional processing, conditioning, encoding, and / or compression of the signals representing the captured images may be performed by a general-purpose processor 230 and / or a DSP 231. Alternatively, a video processor 233 may perform conditioning, encoding, compression, and / or manipulation of the signals representing the captured images. The video processor 233 may decode / decompress stored image data for presentation on a display device (not shown), for example, a user interface 216.

[0074] A positioning (motion) device (PMD) 219 may be configured to determine the location and possible motion of the UE 200. For example, the PMD 219 may communicate with, and / or include some or all of, the SPS receiver 217. The PMD 219 may additionally or alternatively be configured to: perform trilateration using terrestrial signals (e.g., at least some radio signals 248), assist in acquiring and using SPS signals 260, or both, to determine the location of the UE 200. The PMD 219 may be configured to: determine the location of the UE 200 using one or more other techniques (e.g., those that rely on the UE's self-reported location (e.g., part of the UE's positioning beacon)), and may use a combination of techniques (e.g., SPS and terrestrial positioning signals) to determine the location of the UE 200. PMD 219 may include one or more sensors 213 (e.g., gyroscopes, accelerometers, magnetometers, etc.) that sense the orientation and / or motion of UE 200 and provide an indication of such orientation and / or motion. Processor 210 (e.g., general-purpose processor 230 and / or DSP 231) may be configured to use the indication to determine the motion of UE 200 (e.g., velocity vector and / or acceleration vector). PMD 219 may be configured to provide an indication of uncertainty and / or error in the determined positioning and / or motion.

[0075] Also refer to Figure 3Examples of TRP 300 for BS (e.g., gNB 110a, gNB 110b, ng-eNB 114) include a computing platform containing a processor 310, a memory 311 including software (SW) 312, a transceiver 315, and (optionally) an SPS receiver 317. The processor 310, memory 311, transceiver 315, and SPS receiver 317 are communicatively coupled to each other via a bus 320 (which may be configured for, for example, optical and / or electrical communication). One or more of the illustrated devices (e.g., a wireless interface and / or SPS receiver 317) may be omitted from the TRP 300. The SPS receiver 317 may be configured similarly to SPS receiver 217 to receive and acquire SPS signal 360 via SPS antenna 362. The processor 310 may include one or more intelligent hardware devices (e.g., a central processing unit (CPU), a microcontroller, an application-specific integrated circuit (ASIC), etc.). Processor 310 may include multiple processors (e.g., including such processors) Figure 2 (The general-purpose / application processor, DSP, modem processor, video processor, and / or sensor processor shown). Memory 311 is a non-transient storage medium, which may include random access memory (RAM), flash memory, disk storage, and / or read-only memory (ROM), etc. Memory 311 stores software 312, which may be processor-readable, processor-executable software code containing instructions configured to cause processor 310 to perform the various functions described herein when executed. Alternatively, software 312 may not be directly executable by processor 310, but may be configured (e.g., when compiled and executed) to cause processor 310 to perform various functions. This specification may refer to processor 310 performing functions, but this includes other implementations, such as processor 310 performing software and / or firmware implementations. This specification may refer to processor 310 performing functions as a shorthand for one or more processors included in processor 310 performing that function. This description may refer to the TRP 300 execution function as a shorthand for one or more appropriate components of the TRP 300 (and thus one of the gNB 110a, gNB 110b, ng-eNB 114) performing this function. The processor 310 may include memory with stored instructions as a supplement and / or replacement for memory 311. The functionality of the processor 310 is discussed more fully below.

[0076] Transceiver 315 may include a wireless transceiver 340 and a wired transceiver 350 configured to communicate with other devices via wireless and wired connections, respectively. For example, wireless transceiver 340 may include a transmitter 342 and a receiver 344 coupled to one or more antennas 346 for transmitting and / or receiving wireless signals 348 (e.g., on one or more uplink channels, downlink channels, and / or sidelink channels) and converting signals from wireless signals 348 to wired (e.g., electrical and / or optical) signals and from wired (e.g., electrical and / or optical) signals to wireless signals 348. Thus, transmitter 342 may include multiple transmitters that may be discrete components or combined / integrated components, and / or receiver 344 may include multiple receivers that may be discrete components or combined / integrated components. The wireless transceiver 340 can be configured to support various radio access technologies (RATs) such as 5G New Radio (NR), GSM (Global System for Mobile Communications), UMTS (Universal Mobile Telecommunications System), AMPS (Advanced Mobile Telephone System), CDMA (Code Division Multiple Access), WCDMA (Wideband CDMA), LTE (Long Term Evolution), LTE Direct (LTE-D), 3GPP LTE-V2X (PC5), IEEE 802.11 (including IEEE 802.11p), WiFi, and WiFi Direct (WiFi-D). The wired transceiver 350 may include a transmitter 352 and a receiver 354 configured to conduct wired communication (e.g., with network 140) to send and receive communications, for example, to LMF 120 or other network servers. The transmitter 352 may include multiple transmitters, which may be discrete components or combined / integrated components, and / or the receiver 354 may include multiple receivers, which may be discrete components or combined / integrated components. The wired transceiver 350 may be configured for, for example, optical communication and / or electrical communication.

[0077] Figure 3 The configuration of TRP 300 shown is exemplary and not intended to limit this disclosure (including the claims), and other configurations may be used. For example, the description herein discusses TRP 300 being configured to perform several functions or TRP 300 performing several functions, but one or more of these functions may be performed by LMF 120 and / or UE 200 (i.e., LMF 120 and / or UE 200 may be configured to perform one or more of these functions).

[0078] Also refer to Figure 4Example servers (such as LMF 120) include a computing platform containing processor 410, a memory 411 containing software (SW) 412, and a transceiver 415. Processor 410, memory 411, and transceiver 415 are communicatively coupled to each other via bus 420 (which may be configured for, for example, optical and / or electrical communication). One or more of the illustrated devices (e.g., a wireless interface) may be omitted from server 400. Processor 410 may include one or more intelligent hardware devices (e.g., a central processing unit (CPU), a microcontroller, an application-specific integrated circuit (ASIC), etc.). Processor 410 may include multiple processors (e.g., including such...). Figure 2 (The general-purpose / application processor, DSP, modem processor, video processor, and / or sensor processor shown). Memory 411 is a non-transient storage medium, which may include random access memory (RAM), flash memory, disk storage, and / or read-only memory (ROM), etc. Memory 411 stores software 412, which may be processor-readable, processor-executable software code containing instructions configured to cause processor 410 to perform the various functions described herein when executed. Alternatively, software 412 may not be directly executable by processor 410, but may be configured (e.g., when compiled and executed) to cause processor 410 to perform various functions. This specification may refer to processor 410 performing functions, but this includes other implementations, such as processor 410 performing software and / or firmware implementations. This specification may refer to processor 410 performing functions as a shorthand for one or more processors included in processor 410 performing that function. This description may refer to server 400 (or LMF 200) performing functions as a shorthand for one or more appropriate components of server 400 performing that function. Processor 410 may include memory with stored instructions as a supplement to and / or replacement of memory 411. The functionality of processor 410 is discussed more fully below.

[0079] Transceiver 415 may include a wireless transceiver 440 and a wired transceiver 450 configured to communicate with other devices via wireless and wired connections, respectively. For example, wireless transceiver 440 may include a transmitter 442 and a receiver 444 coupled to one or more antennas 446 for transmitting (e.g., on one or more downlink channels) and / or receiving (e.g., on one or more uplink channels) wireless signals 448 and converting signals from wireless signals 448 to wired (e.g., electrical and / or optical) signals and from wired (e.g., electrical and / or optical) signals to wireless signals 448. Thus, transmitter 442 may include multiple transmitters, which may be discrete components or combined / integrated components, and / or receiver 444 may include multiple receivers, which may be discrete components or combined / integrated components. The wireless transceiver 440 can be configured to support various radio access technologies (RATs) such as 5G New Radio (NR), GSM (Global System for Mobile Communications), UMTS (Universal Mobile Telecommunications System), AMPS (Advanced Mobile Telephone System), CDMA (Code Division Multiple Access), WCDMA (Wideband CDMA), LTE (Long Term Evolution), LTE Direct (LTE-D), 3GPP LTE-V2X (PC5), IEEE 802.11 (including IEEE 802.11p), WiFi, and WiFi Direct (WiFi-D). The wired transceiver 450 may include a transmitter 452 and a receiver 454 configured for wired communication (e.g., with UE 200, one or more other UEs, and / or one or more other devices) to transmit signals. The wired transceiver 450 may include a transmitter 452 and a receiver 454 configured for wired communication (e.g., with NG-RAN 135) to send and receive communications to, for example, TRP 300. The transmitter 452 may include multiple transmitters, which may be discrete components or combined / integrated components, and / or the receiver 454 may include multiple receivers, which may be discrete components or combined / integrated components. The wired transceiver 450 may be configured for, for example, optical communication and / or electrical communication.

[0080] Figure 4 The configuration of server 400 shown is exemplary and not intended to limit this disclosure (including the claims), and other configurations may be used. For example, wireless transceiver 440 may be omitted. Alternatively or additionally, the description herein discusses server 400 being configured to perform several functions, but one or more of these functions may be performed by TRP 300 and / or UE 200 (i.e., TRP 300 and / or UE 200 may be configured to perform one or more of these functions).

[0081] Reference Figure 5A and 5BThe diagram illustrates an example downlink PRS resource set. Generally, a PRS resource set is a collection of PRS resources spanning a single base station (e.g., TRP 300) that share the same periodicity, a common silent mode configuration, and the same cross-slot repetition factor. A first PRS resource set 502 comprises 4 resources and a repetition factor of 4, with a time slot equal to 1 time slot. A second PRS resource set 504 comprises 4 resources and a repetition factor of 4, with a time slot equal to 4 time slots. The repetition factor indicates the number of times each PRS resource is repeated in each individual instance of the PRS resource set (e.g., values ​​1, 2, 4, 6, 8, 16, 32). The time slot represents the offset in time slots between two repeating instances of PRS resources corresponding to the same PRS resource ID within a single instance of the PRS resource set (e.g., values ​​1, 2, 4, 8, 16, 32). The time duration spanned by a PRS resource set containing repeating PRS resources does not exceed the PRS periodicity. Repetition of PRS resources enables receiver beam sweeping across repetitions and combines RF gains to increase coverage. Repetition also allows for in-instance silence.

[0082] Reference Figure 6 This illustrates example subframes and time slot formats used for positioning reference signal transmission. The example subframes and time slot formats are included in... Figure 5A and 5B The PRS resource cluster described in the document. Figure 6 The subframe and time slot formats described are examples and not limitations, and include a comb-2 format 602 with 2 symbols, a comb-4 format 604 with 4 symbols, a comb-2 format 606 with 12 symbols, a comb-4 format 608 with 12 symbols, a comb-6 format 610 with 6 symbols, a comb-12 format 612 with 12 symbols, a comb-2 format 614 with 6 symbols, and a comb-6 format 616 with 12 symbols. Generally, a subframe may include 14 symbol periods with indices 0 to 13. The subframe and time slot formats can be used in the Physical Broadcast Channel (PBCH). Typically, a base station can transmit PRS from antenna port 6 on one or more time slots in each subframe configured for PRS transmission. The base station may avoid transmitting PRS on resource elements allocated to the PBCH, Primary Synchronization Signal (PSS), or Secondary Synchronization Signal (SSS), regardless of their antenna ports. Cellular units can generate reference symbols for PRS based on cell ID, symbol periodicity index, and time slot index. Generally, UEs can distinguish PRS from different cells.

[0083] A base station can transmit PRS on a specific PRS bandwidth, which can be configured by higher layers. The base station can also transmit PRS on subcarriers spaced across the PRS bandwidth. The base station can also transmit PRS based on parameters such as PRS periodicity (TPRS), subframe offset (PRS), and PRS duration (NPRS). PRS periodicity is the periodicity of PRS transmission. PRS periodicity can be, for example, 160, 320, 640, or 1280 ms. Subframe offset indicates the specific subframe in which PRS is transmitted. And PRS duration indicates the number of consecutive subframes in which PRS is transmitted within each PRS transmission cycle (PRS timing). PRS duration can be, for example, 1, 2, 4, or 6 ms.

[0084] The PRS periodicity (TPRS) and subframe offset (PRS) can be communicated via the PRS configuration index (IPRS). The PRS configuration index and PRS duration can be configured independently by higher layers. A set of consecutive NPRS subframes that transmit the PRS can be referred to as a PRS timing. Each PRS timing can be enabled or silenced; for example, a UE can apply a silence bit to each cell. A PRS resource set is a collection of PRS resources across base stations that share the same periodicity, a common silence mode configuration, and the same cross-slot repetition factor (e.g., 1, 2, 4, 6, 8, 16, 32 slots).

[0085] Generally speaking, Figure 5A and 5B The PRS resource described herein can be a set of resource elements used for PRS transmission. This set of resource elements can span multiple Physical Resource Blocks (PRBs) in the frequency domain and N (e.g., one or more) coherent symbols within a time slot in the time domain. In a given OFDM symbol, the PRS resource occupies a coherent PRB. A PRS resource is described by at least the following parameters: PRS resource identifier (ID), sequence ID, comb size N, resource element offset in the frequency domain, start time slot and start symbol, number of symbols per PRS resource (i.e., duration of the PRS resource), and QCL information (e.g., QCL with other DL reference signals). Currently, one antenna port is supported. The comb size indicates the number of subcarriers carrying the PRS in each symbol. For example, a comb size of comb-4 means that every fourth subcarrier of a given symbol carries the PRS.

[0086] A PRS resource set is a group of PRS resources used for PRS signal transmission, where each PRS resource has a PRS resource ID. Furthermore, PRS resources in a PRS resource set are associated with the same transmit / receive point (e.g., TRP 300). Each PRS resource in a PRS resource set has the same periodicity, a shared silence mode, and the same cross-slot repetition factor. A PRS resource set is identified by a PRS resource set ID and can be associated with a specific TRP (identified by a cell ID) transmitted by the antenna panel of a base station. The PRS resource ID in a PRS resource set can be associated with an omnidirectional signal and / or with a single beam (and / or beam ID) transmitted from a single base station (where a base station can transmit one or more beams). Each PRS resource in a PRS resource set can be transmitted on a different beam, and thus, a PRS resource (or simply a resource) can also be referred to as a beam. Note that this does not imply at all whether the UE is aware of the base station and beam transmitting the PRS.

[0087] Reference Figure 7 The diagram illustrates an example frequency layer 700. In one example, frequency layer 700, also referred to as the positioning frequency layer, can be a collection of PRS resource sets spanning one or more TRPs. Positioning frequency layers can have the same subcarrier spacing (SCS) and cyclic prefix (CP) type, the same point A, the same DL PRS bandwidth value, the same starting PRB, and the same comb size value. The set of parameters supported by PDSCH can be supported by the PRS. Each PRS resource set in frequency layer 700 is a collection of PRS resources spanning one TRP that have the same periodicity, a shared silent mode configuration, and the same cross-slot repetition factor.

[0088] Note that the terms Positioning Reference Signal and PRS are reference signals that can be used for positioning, such as, but not limited to: PRS signal, Navigation Reference Signal (NRS) in 5G, Downlink Positioning Reference Signal (DL-PRS), Uplink Positioning Reference Signal (UL-PRS), Tracking Reference Signal (TRS), Cell-Specific Reference Signal (CRS), Channel State Information Reference Signal (CSI-RS), Primary Synchronization Signal (PSS), Secondary Synchronization Signal (SSS), Detection Reference Signal (SRS), etc.

[0089] The ability of a UE to process PRS signals can vary based on its capabilities. However, in general, industry standards can be developed to establish shared PRS capabilities for all UEs in the network. For example, industry standards could require the duration of DL PRS symbols that a UE can process per T ms, in milliseconds (ms), assuming the UE supports and reports a maximum DL PRS bandwidth in MHz. As an example, and not a limitation, the maximum DL PRS bandwidth for the FR1 band could be 5, 10, 20, 40, 50, 80, or 100 MHz, while the maximum DL PRS bandwidth for the FR2 band could be 50, 100, 200, or 400 MHz. These standards can also indicate DL PRS buffering capabilities as Type 1 (i.e., sub-slot / symbol-level buffering) or Type 2 (i.e., slot-level buffering). Shared UE capabilities could indicate the duration of DL PRS symbols per T ms, in milliseconds (N), that a UE can process per T ms, assuming the UE supports and reports a maximum DL PRS bandwidth in MHz. Example T values ​​can include 8, 16, 20, 30, 40, 80, 160, 320, 640, 1280 ms, and example N values ​​can include 0.125, 0.25, 0.5, 1, 2, 4, 6, 8, 12, 16, 20, 25, 30, 32, 35, 40, 45, 50 ms. The UE can be configured to report a combination of (N, T) values ​​per frequency band, where N is the DL PRS symbol duration in ms per Tms for a given maximum bandwidth (B) supported by the UE in MHz. Generally, it may not be expected that the UE will support DL PRS bandwidth exceeding the reported DL PRS bandwidth value. UE DL PRS processing capability can be defined for a single positioning frequency layer 700. UE DL PRS processing capability depends on DL PRS comb factor configuration (such as in...). Figure 6 The number of DL PRS resources that a UE can process in a time slot at a given frequency level may be unknown. UE processing capability indicates the maximum number of DL PRS resources that a UE can process in a time slot at that frequency level. For example, for each SCS: 15kHz, 30kHz, 60kHz, the maximum number for the FR1 band could be 1, 2, 4, 6, 8, 12, 16, 24, 32, 48, 64, while for each SCS: 15kHz, 30kHz, 60kHz, 120kHz, the maximum number for the FR2 band could be 1, 2, 4, 6, 8, 12, 16, 24, 32, 48, 64.

[0090] UE 200 can be configured to operate in different use cases and / or applications that may require different accuracy requirements. For example, in regulatory use cases, target accuracy requirements (e.g., 3GPP Release 16) may include a horizontal positioning error of less than or equal to 50m for 80% of UEs, a vertical positioning error of less than 5m for 80% of UEs, and an end-to-end latency of less than 30 seconds (TTFF). Commercial use cases may require more precise positioning. As an example and not a limitation, RAT-related solutions may require a horizontal positioning error of less than 3m for 80% of UEs in indoor deployment scenarios, a vertical positioning error of less than 3m for 80% of UEs in outdoor deployment scenarios, a horizontal positioning error of less than 10m for 80% of UEs in outdoor deployment scenarios, and an end-to-end latency of less than 1 second. These accuracy requirements are examples and may vary based on industry standards and user equipment capabilities.

[0091] In operation, a mobile UE can switch between indoor and outdoor environments, and the target accuracy can depend on its use case. In one example, a mobile UE can be configured to support multiple use cases with different accuracy requirements at different times. For example, a smartphone can be used for navigation in an outdoor environment with a media positioning accuracy requirement of less than 5m, and then for indoor navigation with a higher accuracy requirement (e.g., less than 1m). Generally, PRS bandwidth is proportional to target positioning accuracy (i.e., the higher the PRS bandwidth, the higher the target accuracy).

[0092] In one example, the PRS bandwidth adaptation technique described herein can be used to select the appropriate frequency layer and corresponding PRS bandwidth based on use cases and UE operating scenarios. Reducing the PRS bandwidth can lead to reduced UE power consumption. In another example, the PRS adaptation technique can be used to change the UE's PRS measurement bandwidth. The PRS measurement bandwidth can be dynamically configured and can be smaller than the PRS bandwidth defined in the frequency layer. The UE can utilize the PRS measurement bandwidth based on target accuracy and / or measurement quality and achieve power savings based on the corresponding reduction in bandwidth.

[0093] refer to Figure 8AThis illustrates an example data structure 800 for associating location reference signal bandwidth and quality of service (PRS). Data structure 800 is an example and not a limitation, as other data structures, data fields, functions, and operations can be used to select PRS bandwidth based on accuracy requirements. In operation, a location frequency layer 700 can be configured with PRS bandwidth that is propagated to the PRS resource set and PRS resources within the frequency layer. Data structure 800 includes a frequency layer column 804 containing identifier values ​​for the four location frequency layers, and a corresponding PRS bandwidth 806 indicating the corresponding PRS bandwidth in the location frequency layer. The location frequency identifier values ​​and PRS bandwidth values ​​are examples. Other bandwidths and identities can be used. Data structure 800 includes a Quality of Service (QoS) accuracy requirement column 802 with example accuracy requirement levels (e.g., low, medium-low, medium-high, high). Accuracy requirements are examples to facilitate the description of the PRS bandwidth adaptation concept. In operation, accuracy requirements can be defined by distance (e.g., 3m, 5m, 10m, 50m, etc.). In one example, the precision requirement may correspond to an information element in the QoS object of the network specification (e.g., the TS 37.355 CommonIEsRequestLocationInformation field). Data structure 800 or an equivalent information element may persist in NG-RAN 135 (e.g., gNB 110a) and / or within network 140 (e.g., LMF 120).

[0094] Communication system 100 can be configured to utilize QoS to provide different priorities for applications, users, or data streams, or to enable performance levels for data streams. For example, different applications may require different target accuracies. Communication system 100 can be configured to allocate PRS bandwidth based on target accuracies. In one example, different PRS bandwidths may be associated with different positioning frequency layers. Different use cases with different target accuracies can utilize different PRS bandwidths. Services with higher target accuracies can request larger PRS bandwidth allocations. When a UE switches from a use case with higher target accuracies to a use case with lower target accuracies, communication system 100 can configure a PRS with a narrower bandwidth. The reduction in PRS bandwidth enables power savings because the receive chain on the UE may require less power to receive the narrow bandwidth. In one embodiment, the PRS bandwidth can be dynamically indicated to the UE 105 via PRS reconfiguration of the LMF 120 via LPP messages through the serving cell (e.g., gNB 110a), or via triggering of downlink control information (DCI) and / or media access control (MAC) control elements (CE), or other signaling (such as radio resource control (RRC) message reception).

[0095] Reference Figure 8BExplanation 850 illustrates example PRS bandwidth and PRS measurement bandwidth. Explanation 850 includes four example PRS bandwidths from a first positioning frequency layer 852, a second positioning frequency layer 856, a third positioning frequency layer 860, and a fourth positioning frequency layer 864. The PRS bandwidth in a frequency layer represents the bandwidth of the PRS indicated in data structure 800 and transmitted by TRP 300 or other stations. Explanation 850 also includes examples of PRS measurement bandwidth configured on UE 200. PRS measurement bandwidth includes a first PRS measurement bandwidth 854, a second PRS measurement bandwidth 858, a third PRS measurement bandwidth 862, and a fourth PRS measurement bandwidth 866. The sizes of the PRS bandwidth and PRS measurement bandwidth are examples, as other sizes may be used based on network accuracy requirements and UE capabilities. Current network specifications support up to four positioning frequency layers, each configured with a specific PRS bandwidth. Future specifications may enable additional positioning frequency layers and corresponding PRS bandwidths. In operation, the communication system 100 may activate the positioning frequency layer based on QoS and / or accuracy requirements, and the UE 200 may be configured to utilize the PRS measurement bandwidth corresponding to the PRS bandwidth. For example, a first PRS measurement bandwidth 854 may be used with a first positioning frequency layer 852, a second PRS measurement bandwidth 858 may be used with a second positioning frequency layer 856, a third PRS measurement bandwidth 862 may be used with a third positioning frequency layer 860, and a fourth PRS measurement bandwidth 866 may be used with a fourth positioning frequency layer 864.

[0096] Reference Figure 9Figure 900 illustrates an example adaptation of PRS measurement bandwidth within a frequency layer. In one embodiment, the communication system 100 may pre-configure a set of PRS measurement bandwidths for each frequency layer and may dynamically indicate to the UE 200 which PRS measurement to use. In one embodiment, different PRS measurement bandwidths on the UE 200 may be triggered by DCI and / or MAC CE messages. For example, referring to Figure 900, the TRP 300 may transmit PRS based on the PRS bandwidth in the first positioning frequency layer 902. The UE 200 may utilize a first PRS measurement bandwidth 904 to measure PRS. The first PRS measurement bandwidth 904 may have substantially the same bandwidth as the PRS bandwidth in the first positioning frequency layer 902. The network may detect changes in the state of the UE 200 (e.g., moving from indoors to outdoors) and determine that lower positioning accuracy requirements can be enabled. The network (e.g., gNB 110a) can provide low-level signaling 906 (such as DCI, MAC CE, RRC, or other signaling) configured to enable UE 200 to reduce the size of the PRS measurement bandwidth. For example, UE 200 may utilize a second PRS measurement bandwidth 908 that is smaller than the PRS bandwidth in the first positioning frequency layer 902. The reduction in PRS measurement bandwidth allows UE 200 to reduce the power of receiver 244, thus achieving power savings. Although the PRS bandwidth of the first positioning frequency layer 902 and the second PRS measurement bandwidth 908 are depicted as having the same lower boundary, the second PRS measurement bandwidth 908 may be located elsewhere within the PRS bandwidth of the first positioning frequency layer 902. In one example, the size of the PRS measurement bandwidth can be changed using a legacy bandwidth portion (BWP) based switch.

[0097] In one embodiment, UE 200 may be configured to report the PRS timing measurement quality and current PRS measurement bandwidth for the current positioning frequency layer. UE 200 may provide measurement quality for various combinations of positioning frequency PRS bandwidth and PRS measurement bandwidth. In one example, when the measurement quality is high, the network may be configured to instruct UE 200 to switch to a lower PRS measurement bandwidth to save power. UE 200 may be configured to use a lower PRS measurement bandwidth if the lower PRS measurement bandwidth is sufficient to meet accuracy requirements, or to increase the PRS measurement bandwidth if higher accuracy is required.

[0098] Reference Figure 10Figure 1000 illustrates an example adaptation of PRS measurement bandwidth across different frequency layers. Figure 1000 includes a first PRS bandwidth 1002 in a first positioning frequency layer and a second PRS bandwidth 1006 in a second frequency layer. UE 200 is configured with at least a first PRS measurement bandwidth 1004, which can be used in either the first or second frequency layer. In one embodiment, it is desirable for UE 200 to process one frequency layer at a time (e.g., to support legacy configurations), and UE 200 may need to switch PRS measurement bandwidths when switching frequency layers. In one example, when the PRS bandwidth is larger in the new frequency layer (e.g., the second PRS bandwidth 1006 is greater than the first PRS bandwidth 1002), UE 200 can be configured to maintain the PRS measurement bandwidth (e.g., the first PRS measurement bandwidth 1004) in the new frequency layer. That is, UE 200 can still meet the target measurement quality / accuracy based on a smaller PRS measurement bandwidth, even if the PRS bandwidth is larger in the new frequency layer. In another example, UE 200 can be configured to increase the PRS measurement bandwidth within a new and larger second PRS bandwidth. If the measurement quality in the frequency layer is low, UE 200 can be configured to switch the PRS measurement bandwidth to a larger, pre-configured PRS measurement bandwidth in the new frequency layer. The PRS measurement bandwidth switching can be triggered based on DCI, MAC CE, or other signaling provided by the network. In one example, UE 200 can be configured to switch the PRS measurement bandwidth based on a local application.

[0099] Reference Figure 11A Figure 1100 illustrates several examples of discrete PRS measurement bandwidths within a frequency layer. Figure 1100 includes a PRS bandwidth 1102 and four PRS measurement bandwidths in a first frequency layer, comprising a first PRS measurement bandwidth 1104, a second PRS measurement bandwidth 1106, a third PRS measurement bandwidth 1108, and a fourth PRS measurement bandwidth 1110. The number and size of PRS measurement bandwidths 1104, 1106, 1108, and 1110 are examples and not limitations, as various numbers and sizes can be used. PRS measurement bandwidths 1104, 1106, 1108, and 1110 may represent pre-specified PRS measurement bandwidths, which may be activated based on two bits in a low-level signaling message (e.g., DCI, MAC CE). Other signaling may also be used to activate the PRS measurement bandwidths. Industry standards define the number and size of PRS measurement bandwidths 1104, 1106, 1108, and 1110. In one example, the standard can implement four PRS measurement bandwidths, with sizes selected from 5, 10, 20, 40, 50, 80 and 100 MHz in the FR1 band and 50, 100, 200 and 400 MHz in the FR2 band.

[0100] Reference Figure 11BFigure 1150 illustrates an example of a variable PRS measurement bandwidth within a frequency layer. Figure 1150 includes a PRS bandwidth 1152 in the frequency layer, and a PRS measurement bandwidth comprising a first portion 1154 and a second portion 1156. The first portion 1154 may represent a minimum PRS measurement bandwidth configurable by the UE 200, while the second portion 1156 may represent a value of the PRS measurement bandwidth from the minimum to the maximum. In one example, the minimum value may be zero (i.e., the size of the first portion is zero). The maximum value may be frequency layer-based (i.e., the maximum value implements a PRS measurement bandwidth equal to the PRS bandwidth). In one embodiment, Figure 11A The PRS measurement bandwidths 1104, 1106, 1108, and 1110 are available as follows: Figure 11B This is achieved using the variable PRS measurement bandwidth described in [the document]. Part 2, 1156, can be configured for a range of sizes within the PRS bandwidth and is therefore not limited to [other aspects]. Figure 11A Four options are available. For example, the resolution of the potential range can be in increments of 0.2, 0.5, 1.0, 1.5, 5 MHz, and thus a larger number of potential PRS measurement bandwidths can be achieved. The quantization of the second part 1156 can be based on the information elements available for signaling (e.g., the number of bits) and the capabilities of the UE 200. In one example, the first part 1154 and the second part 1156 may not be contiguous within the PRS bandwidth 1152. For example, the first part 1154 may be located at the lower part of the PRS bandwidth 1152 and the second part 1156 may be located at the upper part of the PRS bandwidth 1152. Other variations and positions within the PRS bandwidth 1152 may also be used.

[0101] Reference Figure 12 And further refer to Figure 1-11B The method 1200 for location reference signal bandwidth adaptation based on location service quality includes the stages shown. However, method 1200 is exemplary and not limiting. Method 1200 can be modified, for example, by adding, removing, rearranging, combining, concurrently executing, and / or splitting a single stage into multiple stages.

[0102] In phase 1202, the method includes determining a target accuracy. TRP 300 is a means for determining the target accuracy. In one example, TRP 300 may receive the target accuracy from LMF 120 or UE 200. UE 200 may be configured to operate and switch between different use cases and / or applications that may require different accuracy requirements. The target accuracy may be based on QoS requirements. For example, in a regulatory use case, accuracy requirements might include a horizontal positioning error of less than or equal to 50 meters, while in a commercial use case, this might include a horizontal positioning error of less than 3 meters for indoor scenarios and less than 10 meters for outdoor scenarios. Other target accuracy values ​​may be available for other applications.

[0103] In stage 1204, the method includes determining the positioning reference signal bandwidth based on target accuracy. TRP 300 is an apparatus for determining the PRS bandwidth. In one example, LMF 120 may provide the PRS bandwidth to TRP 300. Referring to example data structure 800, the positioning frequency layer may be configured with PRS bandwidth, and each PRS resource (e.g., PRS beam) in the positioning frequency layer is transmitted with PRS bandwidth. The positioning frequency layer may be associated with QoS accuracy requirements. Accuracy requirements may be normalized to relative bins (such as those indicated in QoS accuracy requirements column 802), and TRP 300 may be configured to select the positioning frequency layer based on the QoS accuracy requirements. The selection of the positioning frequency layer determines the PRS bandwidth of the PRS resource. In one example, TRP 300 may be configured to signal to UE 200 that the selected positioning frequency layer has been indicated, and UE 200 may configure the PRS measurement bandwidth based on the selected positioning frequency layer. For example, referring to… Figure 8B TRP 300 can signal via DCI, MAC CE, RRC, LPP or other message transmissions that the third positioning frequency layer 860 with the third PRS bandwidth is active, and UE 200 can configure the third PRS measurement bandwidth 862. Other signaling can also be used to indicate the positioning frequency layer, and UE 200 can be configured to select the PRS measurement bandwidth based on the indicated positioning frequency layer.

[0104] In phase 1206, the method includes transmitting PRS based on PRS bandwidth. TRP 300 is an apparatus for transmitting PRS. TRP 300 transmits downlink PRS resources based on the positioning frequency layer selected in phase 1204. For example, refer to Figure 5A and 5B The TRP 300 can be configured to use PRS bandwidth to transmit a PRS resource set that includes multiple PRS resources.

[0105] Reference Figure 13 And further refer to Figure 1-11B The method 1300 for measuring bandwidth using a positioning reference signal within a frequency layer includes the stages shown. However, method 1300 is illustrative and not limiting. Method 1300 can be modified, for example, by adding, removing, rearranging, combining, concurrently executing, and / or splitting a single stage into multiple stages.

[0106] In phase 1302, the method includes determining a target accuracy. TRP 300 is a means for determining the target accuracy. In one example, TRP 300 may receive the target accuracy from LMF 120 or UE 200. UE 200 may be configured to operate and switch between different use cases and / or applications that may require different accuracy requirements. The target accuracy may be based on QoS requirements. For example, in a regulatory use case, accuracy requirements might include a horizontal positioning error of less than or equal to 50 meters, while in a commercial use case, this might include a horizontal positioning error of less than 3 meters for indoor scenarios and less than 10 meters for outdoor scenarios. Other target accuracy values ​​may be available for other applications.

[0107] In stage 1304, the method includes determining the positioning reference signal measurement bandwidth based on the target accuracy. TRP 300 is a means for determining the PRS measurement bandwidth. In one example, LMF 120 may provide the PRS measurement bandwidth to TRP 300. Referring to example data structure 800, the accuracy requirement may be normalized to a relative bin (such as indicated in the QoS accuracy requirement column 802), and TRP 300 may be configured to select the PRS bandwidth 806 based on the QoS accuracy requirement. In one example, the PRS measurement bandwidth may be based on PRS bandwidth 806. For example, a low to medium QoS accuracy requirement may correspond to a 50 MHz PRS measurement bandwidth. Other data structures may be used to correlate QoS accuracy requirements with PRS measurement bandwidth values. In one example, referring to… Figure 11A The UE 200 can be configured with multiple pre-specified PRS measurement bandwidths 1104, 1106, 1108, and 1110, and the TRP 300 can select one of the PRS measurement bandwidths based on the target accuracy. In another example, refer to... Figure 11B The UE 200 can be configured with a variable PRS measurement bandwidth, and the TRP 300 can provide an indication of the size of the variable PRS measurement bandwidth based on the target accuracy.

[0108] In stage 1306, the method includes transmitting a signal indicating the bandwidth of the positioning reference signal measurement. TRP 300 is a means for transmitting the signal indicating the bandwidth of the PRS measurement. (See reference...) Figure 9 In one example, TRP 300 can provide low-level signaling 906, such as DCI or MACCE, configured to switch UE 200 from a first PRS measurement bandwidth 904 to a second PRS measurement bandwidth 908. Other signaling (such as RRC or LPP) can also be used to indicate the PRS measurement bandwidth. In one example, refer to Figure 11A The signal indicating the PRS measurement bandwidth can indicate one of several pre-specified PRS measurement bandwidths 1104, 1106, 1108, and 1110. In another example, refer to... Figure 11BThe signal indicating the PRS measurement bandwidth can indicate the size of the variable PRS measurement bandwidth.

[0109] In stage 1308, the method may optionally include transmitting PRS based on PRS bandwidth. TRP 300 is an apparatus for transmitting PRS. TRP 300 can transmit downlink PRS resources based on the location frequency layer without considering the PRS measurement bandwidth. For example, refer to... Figure 9 and 10 The TRP 300 can be configured to transmit PRS resource sets based on different positioning frequency layers. The UE200 can be configured to adapt the PRS measurement bandwidth based on the new frequency layer, or maintain the existing PRS measurement bandwidth if the accuracy target is being achieved.

[0110] Reference Figure 14 And further refer to Figure 1-11B The method 1400 for obtaining positioning measurements within the positioning reference signal measurement bandwidth includes the stages shown. However, method 1400 is illustrative and not limiting. Method 1400 can be modified, for example, by adding, removing, rearranging, combining, concurrently executing, and / or splitting a single stage into multiple stages.

[0111] In stage 1402, the method includes receiving a signal indicating a positioning reference signal measurement bandwidth. UE 200 is an apparatus for receiving the signal indicating the PRS measurement bandwidth. Referring to example data structure 800, the accuracy requirement can be normalized to a relative bin (such as indicated in the QoS accuracy requirement column 802), and TRP 300 can be configured to select the PRS bandwidth 806 based on the QoS accuracy requirement. The current activity of UE 200 (e.g., regulatory, commercial, indoor, outdoor, application, etc.) can be used to determine the QoS accuracy requirement. In one example, the PRS measurement bandwidth may correspond to one of the PRS bandwidths in the frequency layer with the desired positioning QoS. In another example, the PRS measurement bandwidth may include a value different from the PRS bandwidth value in the frequency layer. (Refer to...) Figure 9 In one example, TRP 300 can provide low-level signaling 906, such as DCI or MAC CE, configured to switch UE 200 from a first PRS measurement bandwidth 904 to a second PRS measurement bandwidth 908. Other signaling, such as RRC or LPP, can also be used to indicate the PRS measurement bandwidth. (See reference...) Figure 11A The received signal can be configured to enable the UE 200 to utilize one of a plurality of pre-specified PRS measurement bandwidths 1104, 1106, 1108, and 1110. In another example, refer to... Figure 11B The received signal can be configured to enable the UE 200 to utilize the variable PRS measurement bandwidth.

[0112] In phase 1404, the method includes receiving one or more positioning reference signals (PRSs). UE 200 is an apparatus for receiving the one or more PRSs. TRP 300 can transmit downlink PRS resources based on the positioning frequency layer. For example, referring to... Figure 9 and 10 One or more TRPs can be configured to transmit PRS resource sets based on different positioning frequency layers. UE 200 can be configured to receive at least a portion of the transmitted PRS signal based on the PRS measurement bandwidth configured using the indication received in phase 1402. In one example, UE 200 can be configured to select the PRS measurement bandwidth based on an application running on UE 200 or other QoS requirements based on the state of UE 200.

[0113] In stage 1406, the method includes obtaining a positioning measurement for at least one of the one or more positioning reference signals, at least in part, based on the positioning reference signal measurement bandwidth. UE 200 is an apparatus for obtaining PRS measurements. In one example, UE 200 may be configured to obtain positioning measurements of one or more PRS transmitted from one or more TRPs, as Received Signal Strength Indication (RSSI), Round-Trip Time (RTT), Reference Signal Time Difference (RSTD), Reference Signal Received Power (RSRP), and / or Reference Signal Received Quality (RSRQ).

[0114] Other examples and implementations fall within the scope of this disclosure and the appended claims. For example, due to the nature of software and computers, the above-described functions can be implemented using software, hardware, firmware, hardwired, or any combination thereof executed by a processor. Features implementing the functions can also be physically located in various locations, including being distributed such that portions of the functions are implemented at different physical locations. For example, one or more functions or portions thereof that occur in the LMF 120 as discussed above can be performed outside the LMF 120 (such as by the TRP 300).

[0115] Unless otherwise stated, the interconnected or communicating components (functionally or otherwise) shown in the figures and / or discussed herein are communicatively coupled. That is, they may be connected directly or indirectly to enable communication between them.

[0116] As used herein, the singular forms of “a,” “some,” and “the” also include the plural forms, unless the context clearly indicates otherwise. For example, “processor” can include one or more processors. As used herein, the terms “comprising,” “having,” “including,” and / or “containing” indicate the presence of the described features, integers, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0117] As used herein, unless otherwise stated, a description of a function or operation “based on” an item or condition means that the function or operation is based on the described item or condition and may be based on one or more items and / or conditions other than the described item or condition.

[0118] Similarly, as used herein, the "or" (possibly followed by "at least one of" or "one or more of") used in item enumeration indicates a disjunctive enumeration such that an enumeration of, for example, "at least one of A, B, or C," or an enumeration of "one or more of A, B, or C," or an enumeration of "A or B or C" represents A or B or C or AB (A and B) or AC (A and C) or BC (B and C) or ABC (i.e., A and B and C), or a combination having more than one feature (e.g., AA, AAB, ABBC, etc.). Therefore, an item (e.g., a processor) being configured to perform a function with respect to at least one of A or B, or an item being configured to perform a function A or function B, means that the item can be configured to perform a function with respect to A, or can be configured to perform a function with respect to B, or can be configured to perform a function with respect to both A and B. For example, the phrase "the processor is configured to measure at least one of A or B" or "the processor is configured to measure A or measure B" means that the processor can be configured to measure A (and may or may not be configured to measure B), or can be configured to measure B (and may or may not be configured to measure A), or can be configured to measure both A and B (and may be configured to select which or both of A and B to measure). Similarly, a description of means for measuring at least one of A or B includes: means for measuring A (which may or may not measure B), or means for measuring B (and may or may not be configured to measure A), or means for measuring A and B (which may be able to select which or both of A and B to measure). As another example, a description of an item (e.g., a processor) being configured to perform at least one of function X or function Y indicates that the item can be configured to perform function X, or can be configured to perform function Y, or can be configured to perform both function X and function Y. For example, the phrase processor being configured to measure "at least one of X or Y" means that the processor can be configured to measure X (and may or may not be configured to measure Y), or can be configured to measure Y (and may or may not be configured to measure X), or can be configured to measure both X and Y (and can be configured to select which or both of X and Y to measure). Substantial variations can be made depending on specific requirements. For example, custom hardware can also be used, and / or specific elements can be implemented in the hardware, in software executed by the processor (including portable software such as applets), or in both. Furthermore, connectivity to other computing devices (such as network input / output devices) can be employed.

[0119] The systems and devices discussed above are examples. Various configurations may appropriately omit, substitute, or add various procedures or components. For example, features described with reference to certain configurations may be combined in various other configurations. Different aspects and elements of a configuration may be combined in a similar manner. Furthermore, technology evolves, and thus many elements are examples and do not limit the scope of this disclosure or the claims.

[0120] A wireless communication system is a system in which communication is transmitted wirelessly, that is, through the atmospheric space via electromagnetic waves and / or sound waves rather than through wires or other physical connections. A wireless communication network may not necessarily transmit all communications wirelessly, but may be configured to transmit at least some communications wirelessly. Furthermore, the term "wireless communication device" or similar terms do not require that the device's functionality be exclusively or uniformly primarily used for communication, or that the device is a mobile device, but rather indicate that the device includes wireless communication capabilities (one-way or two-way), for example, including at least one radio (each radio being part of a transmitter, receiver, or transceiver) for wireless communication.

[0121] Specific details are set forth in this specification to provide a thorough understanding of the example configurations (including implementations). However, these configurations may be practiced without these specific details. For example, well-known circuits, processes, algorithms, structures, and techniques have been shown without unnecessary detail to avoid obscuring these configurations. This description provides example configurations and does not limit the scope, applicability, or configuration of the claims. Rather, the preceding description of the configurations provides a description for implementing the techniques described. Various changes may be made to the function and arrangement of the elements without departing from the scope of this disclosure.

[0122] As used herein, the terms “processor-readable medium,” “machine-readable medium,” and “computer-readable medium” refer to any medium that participates in providing data that enables a machine to operate in a particular manner. Using a computing platform, various processor-readable media may involve providing instructions / code to (such as) processors for execution, and / or being used to store and / or carry such instructions / code (e.g., as signals). In many implementations, processor-readable media are physical and / or tangible storage media. Such media can take many forms, including but not limited to non-volatile and volatile media. Non-volatile media include, for example, optical discs and / or magnetic disks. Volatile media include, but are not limited to, dynamic memory.

[0123] A statement whose value exceeds (or is greater than or higher than) a first threshold is equivalent to a statement whose value meets or exceeds a second threshold slightly greater than the first threshold. For example, in the resolution of the computing system, the second threshold is one value higher than the first threshold. A statement whose value is less than the first threshold (or within or below the first threshold) is equivalent to a statement whose value is less than or equal to a second threshold slightly lower than the first threshold. For example, in the resolution of the computing system, the second threshold is one value lower than the first threshold.

[0124] Examples of implementations are described in the following numbered clauses.

[0125] 1. A method for locating reference signal bandwidth adaptation, comprising:

[0126] Determine the target accuracy;

[0127] The positioning reference signal bandwidth is determined based on the target accuracy; and

[0128] The positioning reference signal is transmitted based on the bandwidth of the positioning reference signal.

[0129] 2. The method as described in Clause 1, wherein the positioning reference signal bandwidth is associated with the positioning frequency layer.

[0130] 3. The method as described in Clause 1, wherein determining the target accuracy includes determining the quality of service used for positioning.

[0131] 4. The method as described in Clause 1, wherein determining the target accuracy includes receiving the target accuracy from a web server.

[0132] 5. The method as described in Clause 1, further comprising providing the user equipment with an indication of the bandwidth of the positioning reference signal.

[0133] 6. The method of Clause 1, wherein providing an indication of the bandwidth of the positioning reference signal includes providing the indication in a downlink control information message or a media access control (MAC) control element (CE).

[0134] 7. The method as described in Clause 1, wherein determining the positioning reference signal bandwidth includes obtaining the positioning reference signal bandwidth from a data structure.

[0135] 8. A method for measuring bandwidth using a positioning reference signal within a frequency layer, comprising:

[0136] Determine the target accuracy;

[0137] The positioning reference signal measurement bandwidth is determined based on the target accuracy; and

[0138] Transmit a signal indicating the measurement bandwidth of the positioning reference signal.

[0139] 9. The method as described in Clause 8, wherein determining the target accuracy includes determining the quality of service used for positioning.

[0140] 10. The method of Clause 8, wherein determining the target accuracy includes receiving the target accuracy from a web server.

[0141] 11. The method as described in Clause 8, wherein determining the target accuracy includes receiving the target accuracy from the user equipment.

[0142] 12. The method as described in Clause 8, wherein the frequency layer is associated with a plurality of positioning reference signal measurement bandwidths and the signal indicating the positioning reference signal measurement bandwidth indicates one or more positioning reference signal measurement bandwidths.

[0143] 13. The method as described in Clause 8, wherein the signal transmitting the positioning reference signal for measuring bandwidth includes providing an indication in a downlink control information message or a media access control (MAC) control element (CE).

[0144] 14. The method as described in Clause 8, wherein transmitting the signal indicating the positioning reference signal for measuring the bandwidth includes providing an indication of the bandwidth portion.

[0145] 15. The method of Clause 8, further comprising transmitting the positioning reference signal in a bandwidth greater than the positioning reference signal measurement bandwidth.

[0146] 16. The method of Clause 8, further comprising transmitting the positioning reference signal in a bandwidth equal to the measurement bandwidth of the positioning reference signal.

[0147] 17. The method of Clause 8, wherein transmitting a signal indicating the measurement bandwidth of a positioning reference signal includes providing an indication of one of a plurality of pre-specified positioning reference signal measurement bandwidths.

[0148] 18. The method of Clause 8, wherein transmitting the signal indicating the positioning reference signal measurement bandwidth includes providing an indication of the magnitude of the variable positioning reference signal measurement bandwidth.

[0149] 19. The method of Clause 8 further includes receiving from the user equipment a timing measurement quality and an indication of the current positioning reference signal measurement bandwidth.

[0150] 20. A method for obtaining positioning measurements, comprising:

[0151] Receives a signal indicating the positioning reference signal to measure the bandwidth;

[0152] Receive one or more positioning reference signals; and

[0153] Positioning measurements are obtained for at least one of the one or more positioning reference signals, at least in part, based on the measurement bandwidth of the positioning reference signal.

[0154] 21. The method of Clause 20, wherein receiving a signal indicating the positioning reference signal for measuring bandwidth includes receiving an indication in a downlink control information message or a media access control (MAC) control element (CE).

[0155] 22. The method of Clause 20, wherein receiving a signal indicating a positioning reference signal for measuring bandwidth includes receiving an indication of a portion of the bandwidth.

[0156] 23. The method of Clause 20, wherein the one or more positioning reference signals have a bandwidth greater than the measurement bandwidth of the positioning reference signal.

[0157] 24. The method of Clause 20, wherein the one or more positioning reference signals have a bandwidth equal to the measurement bandwidth of the positioning reference signal.

[0158] 25. The method of Clause 20, wherein receiving a signal indicating the measurement bandwidth of a positioning reference signal includes receiving an indication of one of a plurality of pre-specified positioning reference signal measurement bandwidths.

[0159] 26. The method of Clause 20, wherein receiving a signal indicating the measurement bandwidth of a positioning reference signal includes receiving an indication of the magnitude of the measurement bandwidth of a variable positioning reference signal.

[0160] 27. The method of Clause 20 further includes transmitting to the base station an indication of timing measurement quality and measurement bandwidth of the current positioning reference signal.

[0161] 28. The method as described in Clause 20, wherein the positioning reference signal measurement bandwidth and the one or more positioning reference signals are associated with a frequency layer.

[0162] 29. The method described in Clause 20 further includes transmitting a quality of service indication to the base station.

[0163] 30. An apparatus comprising:

[0164] Memory;

[0165] At least one transceiver;

[0166] At least one processor, communicatively coupled to the memory and the at least one transceiver, and configured to:

[0167] Determine the target accuracy;

[0168] The positioning reference signal bandwidth is determined based on the target accuracy; and

[0169] The positioning reference signal is transmitted based on the bandwidth of the positioning reference signal.

[0170] 31. The apparatus as described in Clause 30, wherein the positioning reference signal bandwidth is associated with a positioning frequency layer.

[0171] 32. The apparatus as described in Clause 30, wherein the at least one processor is further configured to determine the quality of service for positioning.

[0172] 33. The apparatus as described in Clause 30, wherein the at least one processor is further configured to receive the target precision from a network server.

[0173] 34. The apparatus of claim 30, wherein the at least one processor is further configured to provide an indication of the bandwidth of the positioning reference signal to the user equipment.

[0174] 35. The apparatus of claim 34, wherein the at least one processor is further configured to provide the indication in a downlink control information message or a media access control (MAC) control element (CE).

[0175] 36. The apparatus of claim 30, wherein the at least one processor is further configured to obtain the positioning reference signal bandwidth from a data structure.

[0176] 37. An apparatus comprising:

[0177] Memory;

[0178] At least one transceiver;

[0179] At least one processor, communicatively coupled to the memory and the at least one transceiver, and configured to:

[0180] Determine the target accuracy;

[0181] The positioning reference signal measurement bandwidth is determined based on the target accuracy; and

[0182] Transmit a signal indicating the bandwidth of the positioning reference signal measurement.

[0183] 38. The apparatus as described in Clause 37, wherein the at least one processor is further configured to determine the quality of service for positioning.

[0184] 39. The apparatus as described in Clause 37, wherein the at least one processor is further configured to receive the target precision from a network server.

[0185] 40. The apparatus as described in Clause 37, wherein the at least one processor is further configured to receive the target accuracy from the user equipment.

[0186] 41. The apparatus of Clause 37, wherein the frequency layer is associated with a plurality of positioning reference signal measurement bandwidths and the signal indicating the positioning reference signal measurement bandwidth indicates one or more positioning reference signal measurement bandwidths.

[0187] 42. The apparatus as described in Clause 37, wherein the at least one processor is further configured to provide indication in a downlink control information message or a media access control (MAC) control element (CE).

[0188] 43. The apparatus as described in Clause 37, wherein the at least one processor is further configured to provide an indication of a portion of the bandwidth.

[0189] 44. The apparatus of claim 37, wherein the at least one processor is further configured to transmit the positioning reference signal in a bandwidth greater than the positioning reference signal measurement bandwidth.

[0190] 45. The apparatus of claim 37, wherein the at least one processor is further configured to transmit the positioning reference signal in a bandwidth equal to the measurement bandwidth of the positioning reference signal.

[0191] 46. ​​The apparatus as described in Clause 37, wherein the at least one processor is further configured to provide an indication of one of a plurality of pre-specified positioning reference signal measurement bandwidths.

[0192] 47. The apparatus as described in Clause 37, wherein the at least one processor is further configured to provide an indication of the magnitude of the measurement bandwidth of the variable positioning reference signal.

[0193] 48. The apparatus as described in Clause 37, wherein the at least one processor is further configured to receive from the user equipment an indication of timing measurement quality and measurement bandwidth of the current positioning reference signal.

[0194] 49. An apparatus comprising:

[0195] Memory;

[0196] At least one transceiver;

[0197] At least one processor, communicatively coupled to the memory and the at least one transceiver, and configured to:

[0198] Receives a signal indicating the positioning reference signal to measure the bandwidth;

[0199] Receive one or more positioning reference signals; and

[0200] Positioning measurements are obtained for at least one of the one or more positioning reference signals, at least in part, based on the measurement bandwidth of the positioning reference signal.

[0201] 50. The apparatus of claim 49, wherein the at least one processor is further configured to receive an instruction in a downlink control information message or a media access control (MAC) control element (CE).

[0202] 51. The apparatus as described in Clause 49, wherein the at least one processor is further configured to receive an indication of a bandwidth portion.

[0203] 52. The apparatus of claim 49, wherein the one or more positioning reference signals have a bandwidth greater than the positioning reference signal measurement bandwidth.

[0204] 53. The apparatus as described in Clause 49, wherein the one or more positioning reference signals have a bandwidth equal to the measurement bandwidth of the positioning reference signal.

[0205] 54. The apparatus as described in Clause 49, wherein the at least one processor is further configured to receive an indication of one of a plurality of pre-specified positioning reference signal measurement bandwidths.

[0206] 55. The apparatus as described in Clause 49, wherein the at least one processor is further configured to receive an indication of the magnitude of the bandwidth of a variable positioning reference signal.

[0207] 56. The apparatus of claim 49, wherein the at least one processor is further configured to transmit to the base station an indication of timing measurement quality and measurement bandwidth of the current positioning reference signal.

[0208] 57. The apparatus as described in Clause 49, wherein the positioning reference signal measurement bandwidth and the one or more positioning reference signals are associated with a frequency layer.

[0209] 58. The apparatus as described in Clause 49, wherein the at least one processor is further configured to transmit a quality of service indication to a base station.

[0210] 59. A device for locating reference signal bandwidth adaptation, comprising:

[0211] A device used to determine the accuracy of a target;

[0212] A means for determining the bandwidth of a positioning reference signal based on the target accuracy; and

[0213] A device for transmitting a positioning reference signal based on the bandwidth of the positioning reference signal.

[0214] 60. An apparatus for measuring bandwidth using a positioning reference signal within a frequency layer, comprising:

[0215] A device used to determine the accuracy of a target;

[0216] A means for determining the measurement bandwidth of the positioning reference signal based on the target accuracy; and

[0217] A means for transmitting a signal indicating the measurement bandwidth of the positioning reference signal.

[0218] 61. A device for obtaining positioning measurements, comprising:

[0219] A device for receiving a signal indicating the bandwidth of a positioning reference signal;

[0220] A means for receiving one or more positioning reference signals; and

[0221] A means for obtaining a positioning measurement for at least one of the one or more positioning reference signals based at least in part on the measurement bandwidth of the positioning reference signal.

[0222] 62. An example non-transient processor-readable storage medium including processor-readable instructions configured to adapt one or more processors to a positioning reference signal bandwidth, comprising:

[0223] Code used to determine target precision;

[0224] Code for determining the positioning reference signal bandwidth based on the target accuracy; and

[0225] Code used to transmit positioning reference signals based on the bandwidth of the positioning reference signal.

[0226] 63. An example non-transient processor-readable storage medium including processor-readable instructions configured to cause one or more processors to measure bandwidth using a positioning reference signal within a frequency layer, comprising:

[0227] Code used to determine target precision;

[0228] Code for determining the measurement bandwidth of the positioning reference signal based on the target accuracy; and

[0229] Code used to transmit signals indicating the measurement bandwidth of the positioning reference signal.

[0230] 64. An example non-transient processor-readable storage medium including processor-readable instructions configured to cause one or more processors to obtain a location measurement, comprising:

[0231] Code used to receive signals indicating the positioning reference signal and measuring bandwidth;

[0232] Code for receiving one or more positioning reference signals; and

[0233] Code for obtaining positioning measurements for at least one of the one or more positioning reference signals based at least in part on the measurement bandwidth of the positioning reference signal.

Claims

1. A method for positioning reference signal bandwidth adaptation, comprising: Determine target accuracy; Determining a positioning reference signal bandwidth based on the target accuracy; as well as A positioning reference signal is transmitted based on the positioning reference signal bandwidth. 2 . The method of claim 1 , wherein the positioning reference signal bandwidth is associated with a positioning frequency layer.

3. The method of claim 1, wherein determining the target accuracy comprises determining a quality of service for positioning. The method of claim 1 , wherein determining the target accuracy comprises receiving the target accuracy from a network server.

5. The method of claim 1, further comprising providing an indication of the positioning reference signal bandwidth to a user equipment.

6. The method of claim 1, wherein providing an indication of the positioning reference signal bandwidth comprises providing the indication in a downlink control information message or a medium access control (MAC) control element (CE).

7. The method of claim 1, wherein determining the positioning reference signal bandwidth comprises obtaining the positioning reference signal bandwidth from a data structure.

8. A method for measuring bandwidth using a positioning reference signal within a frequency layer, comprising: Determine target accuracy; Determining the positioning reference signal measurement bandwidth based on the target accuracy; as well as A signal indicating the positioning reference signal measurement bandwidth is transmitted.

9. The method of claim 8, wherein determining the target accuracy comprises determining a quality of service for positioning.

10. The method of claim 8, wherein determining the target accuracy comprises receiving the target accuracy from a network server. The method of claim 8 , wherein determining the target accuracy comprises receiving the target accuracy from a user equipment. 12 . The method of claim 8 , wherein the frequency layer is associated with a plurality of positioning reference signal measurement bandwidths and the signal indicating the positioning reference signal measurement bandwidth indicates one or the plurality of positioning reference signal measurement bandwidths.

13. The method of claim 8, wherein transmitting a signal indicating the positioning reference signal measurement bandwidth comprises providing an indication in a downlink control information message or a media access control (MAC) control element (CE).

14. The method of claim 8, wherein transmitting a signal indicating the positioning reference signal measurement bandwidth comprises providing an indication of a bandwidth portion.

15. The method of claim 8, further comprising transmitting a positioning reference signal in a bandwidth greater than the positioning reference signal measurement bandwidth.

16. The method of claim 8, further comprising transmitting a positioning reference signal in a bandwidth equal to the positioning reference signal measurement bandwidth.

17. The method of claim 8, wherein transmitting the signal indicating the positioning reference signal measurement bandwidth comprises providing an indication of one of a plurality of pre-designated positioning reference signal measurement bandwidths.

18. The method of claim 8, wherein transmitting the signal indicative of the positioning reference signal measurement bandwidth comprises providing an indication of a size of a variable positioning reference signal measurement bandwidth.

19. The method of claim 8, further comprising receiving, from a user equipment, a timing measurement quality and an indication of a current positioning reference signal measurement bandwidth.

20. A method of obtaining a positioning measurement, comprising: receiving a signal indicating a positioning reference signal measurement bandwidth; receiving one or more positioning reference signals; as well as A positioning measurement is obtained for at least one positioning reference signal of the one or more positioning reference signals based at least in part on the positioning reference signal measurement bandwidth.

21. The method of claim 20, wherein receiving a signal indicating the positioning reference signal measurement bandwidth comprises receiving an indication in a downlink control information message or a media access control (MAC) control element (CE).

22. The method of claim 20, wherein receiving a signal indicating a bandwidth for measuring the positioning reference signal comprises receiving an indication of a bandwidth portion.

23. The method of claim 20, wherein the one or more positioning reference signals have a bandwidth greater than a measurement bandwidth of the positioning reference signal.

24. The method of claim 20, wherein the one or more positioning reference signals have a bandwidth equal to the positioning reference signal measurement bandwidth.

25. The method of claim 20, wherein receiving the signal indicating the positioning reference signal measurement bandwidth comprises receiving an indication of one of a plurality of pre-designated positioning reference signal measurement bandwidths.

26. The method of claim 20, wherein receiving the signal indicative of the positioning reference signal measurement bandwidth comprises receiving an indication of a size of a variable positioning reference signal measurement bandwidth.

27. The method of claim 20, further comprising transmitting the timing measurement quality and an indication of a current positioning reference signal measurement bandwidth to a base station.

28. The method of claim 20, wherein the positioning reference signal measurement bandwidth and the one or more positioning reference signals are associated with frequency layers.

29. The method of claim 20, further comprising transmitting a quality of service indication to a base station.

30. An apparatus comprising: Memory; at least one transceiver; at least one processor communicatively coupled to the memory and the at least one transceiver and configured to: Determine target accuracy; Determining a positioning reference signal bandwidth based on the target accuracy; and A positioning reference signal is transmitted based on the positioning reference signal bandwidth.

31. The apparatus of claim 30, wherein the positioning reference signal bandwidth is associated with a positioning frequency layer.

32. The apparatus of claim 30, wherein the at least one processor is further configured to determine a quality of service for positioning.

33. The apparatus of claim 30, wherein the at least one processor is further configured to receive the target accuracy from a network server.

34. The apparatus of claim 30, wherein the at least one processor is further configured to provide an indication of the positioning reference signal bandwidth to a user equipment.

35. The apparatus of claim 34, wherein the at least one processor is further configured to provide the indication in a downlink control information message or a medium access control (MAC) control element (CE).

36. The apparatus of claim 30, wherein the at least one processor is further configured to obtain the positioning reference signal bandwidth from a data structure.

37. An apparatus comprising: Memory; at least one transceiver; at least one processor communicatively coupled to the memory and the at least one transceiver and configured to: Determine target accuracy; Determining a positioning reference signal measurement bandwidth based on the target accuracy; as well as A signal indicating a positioning reference signal measurement bandwidth is transmitted.

38. The apparatus of claim 37, wherein the at least one processor is further configured to determine a quality of service for positioning.

39. The apparatus of claim 37, wherein the at least one processor is further configured to receive the target accuracy from a network server.

40. The apparatus of claim 37, wherein the at least one processor is further configured to receive the target accuracy from a user equipment.

41. The apparatus of claim 37, wherein a frequency layer is associated with a plurality of positioning reference signal measurement bandwidths and the signal indicating the positioning reference signal measurement bandwidth indicates one or the plurality of positioning reference signal measurement bandwidths.

42. The apparatus of claim 37, wherein the at least one processor is further configured to provide the indication in a downlink control information message or a medium access control (MAC) control element (CE).

43. The apparatus of claim 37, wherein the at least one processor is further configured to provide an indication of a bandwidth portion.

44. The apparatus of claim 37, wherein the at least one processor is further configured to transmit a positioning reference signal in a bandwidth greater than the positioning reference signal measurement bandwidth.

45. The apparatus of claim 37, wherein the at least one processor is further configured to transmit a positioning reference signal in a bandwidth equal to the positioning reference signal measurement bandwidth.

46. ​​The apparatus of claim 37, wherein the at least one processor is further configured to provide an indication of one of a plurality of pre-designated positioning reference signal measurement bandwidths.

47. The apparatus of claim 37, wherein the at least one processor is further configured to provide an indication of a size of a variable positioning reference signal measurement bandwidth.

48. The apparatus of claim 37, wherein the at least one processor is further configured to receive, from a user equipment, a timing measurement quality and an indication of a current positioning reference signal measurement bandwidth.

49. An apparatus comprising: Memory; at least one transceiver; at least one processor communicatively coupled to the memory and the at least one transceiver and configured to: receiving a signal indicating a positioning reference signal measurement bandwidth; receiving one or more positioning reference signals; as well as A positioning measurement is obtained for at least one positioning reference signal of the one or more positioning reference signals based at least in part on the positioning reference signal measurement bandwidth.

50. The apparatus of claim 49, wherein the at least one processor is further configured to receive the indication in a downlink control information message or a medium access control (MAC) control element (CE).

51. The apparatus of claim 49, wherein the at least one processor is further configured to receive an indication of a bandwidth portion.

52. The apparatus of claim 49, wherein the one or more positioning reference signals have a bandwidth greater than a measurement bandwidth of the positioning reference signal.

53. The apparatus of claim 49, wherein the one or more positioning reference signals have a bandwidth equal to the positioning reference signal measurement bandwidth.

54. The apparatus of claim 49, wherein the at least one processor is further configured to receive an indication of one of a plurality of pre-designated positioning reference signal measurement bandwidths.

55. The apparatus of claim 49, wherein the at least one processor is further configured to receive an indication of a size of a variable positioning reference signal measurement bandwidth.

56. The apparatus of claim 49, wherein the at least one processor is further configured to transmit the timing measurement quality and an indication of a current positioning reference signal measurement bandwidth to a base station.

57. The apparatus of claim 49, wherein the positioning reference signal measurement bandwidth and the one or more positioning reference signals are associated with frequency layers.

58. The apparatus of claim 49, wherein the at least one processor is further configured to transmit a quality of service indication to a base station.

59. A device for positioning reference signal bandwidth adaptation, comprising: Device for determining target accuracy; means for determining a positioning reference signal bandwidth based on the target accuracy; as well as Means for transmitting a positioning reference signal based on the positioning reference signal bandwidth.

60. An apparatus for measuring bandwidth using a positioning reference signal within a frequency layer, comprising: Device for determining target accuracy; means for determining a measurement bandwidth of the positioning reference signal based on the target accuracy; as well as Means for transmitting a signal indicative of a positioning reference signal measurement bandwidth.

61. An apparatus for obtaining a positioning measurement, comprising: means for receiving a signal indicating a positioning reference signal measurement bandwidth; means for receiving one or more positioning reference signals; as well as Means for obtaining positioning measurements for at least one of the one or more positioning reference signals based at least in part on the positioning reference signal measurement bandwidth.

62. A non-transitory processor-readable storage medium comprising processor-readable instructions configured to cause one or more processors to adapt a positioning reference signal bandwidth, comprising: Code for determining target accuracy; code for determining a positioning reference signal bandwidth based on the target accuracy; as well as Code for transmitting a positioning reference signal based on the positioning reference signal bandwidth.

63. A non-transitory processor-readable storage medium comprising processor-readable instructions, the processor-readable instructions configured to cause one or more processors to measure bandwidth using positioning reference signals within a frequency layer, comprising: Code for determining target accuracy; A code for determining a measurement bandwidth of the positioning reference signal based on the target accuracy; as well as A code for transmitting a signal indicating a positioning reference signal measurement bandwidth.

64. A non-transitory processor-readable storage medium comprising processor-readable instructions configured to cause one or more processors to obtain positioning measurements, comprising: code for receiving a signal indicating a positioning reference signal measurement bandwidth; code for receiving one or more positioning reference signals; as well as Code for obtaining a positioning measurement for at least one of the one or more positioning reference signals based at least in part on the positioning reference signal measurement bandwidth.

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