Method and apparatus for positioning assistance prioritization by method

Abstract

Methods and apparatus are provided for positioning assistance prioritization by a method. A user equipment (UE) configured for positioning determination receives positioning assistance data from a location server, the positioning assistance data being distinct from positioning methods and providing information related to prioritization of one or more of a frequency layer, a transmission point (TRP), a set of positioning reference signal (PRS) resources, and PRS resources, or a combination thereof. Positioning assistance data may be generated by the location server in response to the UE measurement capabilities. The UE determines a prioritization for PRS measurements based at least on one or more rankings of information in the positioning assistance data regarding a frequency layer, a TRP, a set of PRS resources or PRS resources, or a combination thereof, and a positioning method. A downlink PRS is measured by the UE based on the priority differentiation.

Description

[0001] This invention patent application is a divisional application of the invention patent application with international application number PCT / US2021 / 019652, international application date February 25, 2021, application number 202180031152.6 entering the Chinese national phase, and name “Method and device for positioning-assisted priority distinction by method”.

[0002] Priority claim under 35 U.S.C. § 119

[0003] This application claims the benefit of and priority under 35 U.S.C. §119 to U.S. Provisional Application No. 63 / 024,433, filed on May 13, 2020, entitled “METHODS AND APPARATUS FOR PER-METHOD POSITIONING ASSISTANCE PRIORITIZATION,” and U.S. Non-Provisional Application No. 17 / 184,393, filed on February 24, 2021, entitled “METHODS AND APPARATUS FOR PER-METHOD POSITIONING ASSISTANCE PRIORITIZATION,” both of which are assigned to the assignee of this application and are incorporated herein by reference in their entirety. Technical Field

[0004] Aspects of the present disclosure relate generally to positioning a user equipment (UE), and more particularly to positioning assistance data for positioning a UE, and to methods and apparatus for positioning assistance prioritization by method. Background Art

[0005] Wireless communication systems have evolved over several generations, including first generation analog wireless telephone service (1G), second generation (2G) digital wireless telephone service (including transitional 2.5G networks), third generation (3G) high-speed data wireless service with Internet capabilities, and fourth generation (4G) services (e.g., Long Term Evolution (LTE), WiMax). There are many different types of wireless communication systems in use today, including cellular and personal communications service (PCS) systems. Examples of known cellular systems include the cellular analog Advanced Mobile Phone System (AMPS), and digital cellular systems based on code division multiple access (CDMA), frequency division multiple access (FDMA), time division multiple access (TDMA), global system for mobile access (GSM) TDMA variants, and the like.

[0006] The fifth-generation (5G) mobile standard calls for higher data transmission speeds, a greater number of connections and better coverage, among other improvements. According to the Next Generation Mobile Networks Alliance, the 5G standard (also known as "New Radio" or "NR") is designed to provide data rates of tens of megabits per second to each of tens of thousands of users.

[0007] The UE may use the signals it receives from the base stations to determine or assist in determining a position estimate. To assist the UE in determining which signals to seek for positioning, the network may provide the UE with positioning assistance data, which contains information that will help detect and measure positioning reference signals from one or more base stations. Summary of the invention

[0008] A user equipment (UE) configured for positioning determination receives positioning assistance data from a location server, the positioning assistance data being specific to a positioning method and providing information related to prioritization of one or more of a frequency layer, a transmission point (TRP), a positioning reference signal (PRS) resource set, and a PRS resource, or a combination thereof. The positioning assistance data may be generated by the location server in response to UE measurement capabilities. The UE determines a prioritization for PRS measurement based on at least one or more rankings of information about frequency layers, TRPs, PRS resource sets or PRS resources, or a combination thereof, in the positioning assistance data and a positioning method. The UE measures a downlink PRS based on the prioritization.

[0009] In one implementation, a method for positioning determination for a user equipment (UE) in a wireless network performed by the UE includes: receiving positioning assistance data according to a positioning method, the positioning assistance data including information about one or more positioning reference signal (PRS) resource sets and one or more PRS resources; determining priority differentiation for PRS signals to be measured based at least on one or more priority rankings of information about PRS resource sets or PRS resources, or a combination thereof, in the positioning assistance data, or assigning equal priority to one or more of the PRS resource sets or PRS resources, or a combination thereof; and determining PRS measurements of the PRS signals based at least on the priority differentiation for the PRS signals; wherein a positioning lock for the UE is determined based on these PRS measurements.

[0010] In one implementation, a user equipment (UE) configured to support positioning determination in a wireless network includes: a wireless transceiver configured to communicate wirelessly in the wireless network; at least one memory; at least one processor coupled to the wireless transceiver and the at least one memory, wherein the at least one processor is configured to: receive positioning assistance data according to a positioning method, the positioning assistance data including information about one or more positioning reference signal (PRS) resource sets and one or more PRS resources; determine priority differentiation for PRS signals to be measured based on at least one or more priority rankings of information about PRS resource sets or PRS resources, or a combination thereof in the positioning assistance data, or assign equal priority to one or more of the PRS resource sets or PRS resources, or a combination thereof; and determine PRS measurements of the PRS signals based at least on the priority differentiation for the PRS signals; wherein a positioning lock for the UE is determined based on these PRS measurements.

[0011] In one implementation, a user equipment (UE) configured to support positioning determination in a wireless network includes: a device for receiving positioning assistance data according to a positioning method, the positioning assistance data including information about one or more positioning reference signal (PRS) resource sets and one or more PRS resources; a device for determining priority differentiation for PRS signals to be measured based at least on one or more priority rankings of information about PRS resource sets or PRS resources, or a combination thereof, in the positioning assistance data, or assigning equal priority to one or more of the PRS resource sets or PRS resources, or a combination thereof; and a device for determining PRS measurement of the PRS signals based at least on the priority differentiation for the PRS signals; wherein a positioning lock for the UE is determined based on these PRS measurements.

[0012] In one implementation, a non-transitory storage medium including program code stored thereon, the program code being operable to configure at least one processor in a user equipment (UE) in a wireless network, the UE being configured to support positioning determination of the UE, the non-transitory storage medium including: program code for receiving positioning assistance data according to a positioning method, the positioning assistance data including information about one or more positioning reference signal (PRS) resource sets and one or more PRS resources; program code for determining priority differentiation for PRS signals to be measured based at least on one or more priority rankings of information about PRS resource sets or PRS resources, or a combination thereof, in the positioning assistance data, or assigning equal priority to one or more of the PRS resource sets or PRS resources, or a combination thereof; and program code for determining PRS measurements of the PRS signals based at least on the priority differentiation for the PRS signals; wherein a positioning fix for the UE is determined based on these PRS measurements.

[0013] In one implementation, a method for positioning determination of a user equipment (UE) performed by a location server in a wireless network includes: receiving measurement capabilities per positioning method from the UE; generating positioning assistance data per positioning method, the positioning assistance data including information about positioning reference signal (PRS) resource sets and PRS resources, the information configured based on the measurement capabilities per positioning method to provide a priority order of PRS resource sets or PRS resources, or a combination thereof, to be measured by the UE, or indicating equal priority of PRS resource sets or PRS resources, or a combination thereof, to be measured by the UE; and transmitting the positioning assistance data per positioning method to the UE; wherein a positioning fix for the UE is determined based on these PRS measurements.

[0014] In one implementation, a location server configured to support positioning determination of a user equipment (UE) in a wireless network includes: an external interface configured to communicate with an entity in the wireless network; at least one memory; at least one processor coupled to the external interface and the at least one memory, wherein the at least one processor is configured to: receive measurement capabilities per positioning method from the UE; generate positioning assistance data per positioning method, the positioning assistance data including information about positioning reference signal (PRS) resource sets and PRS resources, the information configured based on the measurement capabilities per positioning method to provide a priority order of PRS resource sets or PRS resources, or a combination thereof, to be measured by the UE, or to indicate equal priority of PRS resource sets or PRS resources, or a combination thereof, to be measured by the UE; and transmit the positioning assistance data per positioning method to the UE; wherein a positioning fix for the UE is determined based on these PRS measurements.

[0015] In one implementation, a location server configured to support positioning determination of a user equipment (UE) in a wireless network includes: a device for receiving measurement capabilities according to a positioning method from the UE; a device for generating positioning assistance data according to the positioning method, the positioning assistance data including information about positioning reference signal (PRS) resource sets and PRS resources, the information being configured based on the measurement capabilities according to the positioning method to provide a priority order of PRS resource sets or PRS resources, or a combination thereof, to be measured by the UE, or indicating equal priority of PRS resource sets or PRS resources, or a combination thereof, to be measured by the UE; and a device for transmitting the positioning assistance data according to the positioning method to the UE; wherein a positioning fix for the UE is determined based on these PRS measurements.

[0016] In one implementation, a non-transitory storage medium including program code stored thereon, the program code being operable to configure at least one processor in a location server configured to support positioning determination of a user equipment (UE), the non-transitory storage medium including: program code for receiving measurement capabilities per positioning method from the UE; program code for generating positioning assistance data per positioning method, the positioning assistance data including information about positioning reference signal (PRS) resource sets and PRS resources, the information being configured based on the measurement capabilities per positioning method to provide a priority order of PRS resource sets or PRS resources, or a combination thereof, to be measured by the UE, or indicating equal priority of PRS resource sets or PRS resources, or a combination thereof, to be measured by the UE; and program code for transmitting the positioning assistance data per positioning method to the UE; wherein a positioning fix for the UE is determined based on these PRS measurements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are presented to aid in describing various aspects of the disclosure and are provided solely for the purpose of illustrating these aspects and not limiting thereof.

[0018] Figure 1

[0013] An exemplary wireless communication system in accordance with various aspects of the present disclosure is illustrated.

[0019] Figure 2A and 2B Example wireless network structures are illustrated in accordance with various aspects of the present disclosure.

[0020] Figure 3 The explanation can be Figure 1 A block diagram of a design of a base station and a user equipment (UE) in one of the base stations and one of the UEs.

[0021] Figure 4 is a diagram of the structure of an exemplary subframe sequence with positioning reference signal (PRS) positioning opportunities.

[0022] Figure 5A , 5B , 5C and 5D illustrate examples of frequency layers, TRPs, PRS resource sets, and levels of PRS resources, as well as their priority distinctions.

[0023] Figure 6 is a signaling flow illustrating various messages that may be sent between components of a wireless network during a positioning session, including prioritization of positioning assistance data by positioning method.

[0024] Figure 7 A flow chart of an exemplary method performed by a UE in a wireless network for position determination of the UE is shown.

[0025] Figure 8 A flow chart of an exemplary method performed by a location server in a wireless network for position determination of a UE is shown.

[0026] Fig. 9 is a schematic block diagram illustrating certain exemplary features of a UE capable of supporting positioning using prioritized positioning assistance data per positioning method.

[0027] Fig.10 is a schematic block diagram illustrating certain exemplary features of a location server that can support positioning of a UE using prioritized positioning assistance data per positioning method. DETAILED DESCRIPTION

[0028] Various aspects of the present disclosure are provided in the following description and related drawings for various examples provided for illustrative purposes. Alternative aspects may be designed without departing from the scope of the present disclosure. In addition, well-known elements in the present disclosure will not be described in detail or will be omitted to avoid obscuring the relevant details of the present disclosure.

[0029] The words "exemplary" and / or "example" are used herein to mean "serving as an example, instance, or illustration." Any aspect described herein as "exemplary" and / or "example" is not necessarily to be construed as preferred or superior to other aspects. Likewise, the term "aspects of the disclosure" does not require that all aspects of the disclosure include the discussed feature, advantage, or mode of operation.

[0030] Those skilled in the art will appreciate that the information and signals described below may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referred to throughout the following description may be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, optical fields or optical particles, or any combination thereof, depending in part on the specific application, in part on the desired design, in part on the corresponding technology, etc.

[0031] In addition, many aspects are described in the form of a sequence of actions performed by, for example, elements of a computing device. It will be appreciated that the various actions described herein can be performed by a dedicated circuit (e.g., an application specific integrated circuit (ASIC)), by program instructions being executed by one or more processors, or by a combination of the two. In addition, the sequence of actions described herein may be considered to be fully embodied in any form of non-transient computer-readable storage medium, which stores a corresponding set of computer instructions that, upon execution, will cause or instruct the associated processor of the device to perform the functionality described herein. Thus, various aspects of the present disclosure may be embodied in several different forms, all of which have been conceived to fall within the scope of the claimed subject matter. In addition, for each aspect described herein, the corresponding form of any such aspect may be described herein as, for example, "logic configured to perform the described actions."

[0032] As used herein, the terms "user equipment" (UE), "base station" and "transmission point (TRP)" are not intended to be dedicated to or otherwise limited to any particular radio access technology (RAT), unless otherwise specified. In general, a UE can be any wireless communication device (e.g., a mobile phone, a router, a tablet computer, a laptop computer, a tracking device, a wearable device (e.g., a smart watch, glasses, an augmented reality (AR) / virtual reality (VR) headset, etc.), a vehicle (e.g., a car, a motorcycle, a bicycle, etc.), an Internet of Things (IoT) device, etc.) used by a user to communicate on a wireless communication network. A UE can be mobile or can be stationary (e.g., at certain times) and can communicate with a radio access network (RAN). As used herein, the term "UE" can be interchangeably referred to as an "access terminal" or "AT", "client device", "wireless device", "subscriber equipment", "subscriber terminal", "subscriber station", "user terminal" or UT, "mobile terminal", "mobile station", or variations thereof. In general, a UE can communicate with a core network via a RAN, and through the core network, the UE can connect to external networks (such as the Internet) and other UEs. Of course, other mechanisms for connecting to the core network and / or the Internet are also possible for the UE, such as through a wired access network, a wireless local area network (WLAN) network (eg, based on IEEE 802.11, etc.), and the like.

[0033] A base station or transmission point (TRP) may operate according to one of several RATs when in communication with a UE, depending on the network in which it is deployed, and may be alternatively referred to as an access point (AP), a network node, a Node B, an evolved Node B (eNB), a new radio (NR) Node B (also referred to as a gNB or gNodeB), etc. In addition, in some systems, a base station may provide pure edge node signaling functions, while in other systems, a base station may provide additional control and / or network management functions. The communication link by which a UE can send signals to a base station is referred to as an uplink (UL) channel (e.g., a reverse traffic channel, a reverse control channel, an access channel, etc.). The communication link by which a base station can send signals to a UE is referred to as a downlink (DL) or forward link channel (e.g., a paging channel, a control channel, a broadcast channel, a forward traffic channel, etc.). As used herein, the term traffic channel (TCH) may refer to a UL / reverse or DL / forward traffic channel.

[0034] The term "base station" may refer to multiple physical transmission points where a single physical transmission point may or may not be co-located. For example, where the term "base station" refers to a single physical transmission point, the physical transmission point may be a base station antenna corresponding to a cell of the base station. Where the term "base station" refers to multiple co-located physical transmission points, the physical transmission points may be an antenna array of the base station (e.g., as in a multiple-input multiple-output (MIMO) system or where the base station employs beamforming). Where the term "base station" refers to multiple non-co-located physical transmission points, the physical transmission points may be a distributed antenna system (DAS) (a network of spatially separated antennas connected to a common source via a transmission medium) or a remote radio head (RRH) (a remote base station connected to a serving base station). Alternatively, the non-co-located physical transmission points may be a serving base station that receives measurement reports from a UE and a neighbor base station whose reference RF signal the UE is measuring.

[0035] Figure 1 An exemplary wireless communication system 100 is illustrated. The wireless communication system 100 (which may also be referred to as a wireless wide area network (WWAN)) may include various base stations 102 and various UEs 104. The base stations 102 may include macrocell base stations (high-power cellular base stations) and / or small cell base stations (low-power cellular base stations). In one aspect, the macrocell base stations may include eNBs (where the wireless communication system 100 corresponds to an LTE network), or gNBs (where the wireless communication system 100 corresponds to a 5G network), or a combination of both, and the small cell base stations may include femtocells, picocells, microcells, etc.

[0036] The base stations 102 or TRPs may collectively form a RAN and interface with a core network 170 (e.g., an evolved packet core (EPC) or a next generation core (NGC)) through a backhaul link 122, and interface to one or more location servers 172 through the core network 170. Among other functions, the base stations 102 may also perform functions related to one or more of delivery of user data, radio channel encryption and decryption, integrity protection, header compression, mobility control functions (e.g., handover, dual connectivity), inter-cell interference coordination, connection establishment and release, load balancing, distribution of non-access stratum (NAS) messages, NAS node selection, synchronization, RAN sharing, multimedia broadcast multicast service (MBMS), subscriber and equipment tracking, RAN information management (RIM), paging, positioning, and delivery of alert messages. The base stations 102 may communicate with each other directly or indirectly (e.g., through EPC / NGC) over a backhaul link 134, which may be wired or wireless.

[0037] Base stations 102 may communicate wirelessly with UEs 104. Each base station 102 may provide communication coverage for a respective geographic coverage area 110. In one aspect, one or more cells may be supported by a base station 102 in each coverage area 110. A "cell" is a logical communication entity used to communicate with a base station (e.g., on a certain frequency resource, which is referred to as a carrier frequency, component carrier, carrier, frequency band, etc.), and may be associated with an identifier (e.g., a physical cell identifier (PCID), a virtual cell identifier (VCID)) to distinguish cells operating via the same or different carrier frequencies. In some cases, different cells may be configured according to different protocol types (e.g., machine type communication (MTC), narrowband IoT (NB-IoT), enhanced mobile broadband (eMBB), or others) that may provide access to different types of UEs. In some cases, the term "cell" may also refer to a geographic coverage area (e.g., a sector) of a base station in the sense that a carrier frequency may be detected and used for communication within a portion of a geographic coverage area 110.

[0038] Although the geographic coverage areas 110 of adjacent macrocell base stations 102 may partially overlap (e.g., in a handoff region), some geographic coverage areas 110 may be substantially overlapped by a larger geographic coverage area 110. For example, a small cell base station 102' may have a coverage area 110' that substantially overlaps with the coverage areas 110 of one or more macrocell base stations 102. A network that includes both small cell and macrocell base stations may be referred to as a heterogeneous network. A heterogeneous network may also include a home eNB (HeNB), which may provide service to a restricted group referred to as a closed subscriber group (CSG).

[0039] The communication link 120 between the base station 102 and the UE 104 may include UL (also known as reverse link) transmissions from the UE 104 to the base station 102 and / or downlink (DL) (also known as forward link) transmissions from the base station 102 to the UE 104. The communication link 120 may use MIMO antenna technology, including spatial multiplexing, beamforming, and / or transmit diversity. The communication link 120 may be over one or more carrier frequencies. The allocation of carriers may be asymmetric with respect to DL and UL (e.g., more or fewer carriers may be allocated to DL than to UL).

[0040] The wireless communication system 100 may further include a wireless local area network (WLAN) access point (AP) 150 in communication with a WLAN station (STA) 152 via a communication link 154 in an unlicensed spectrum (e.g., 5 GHz). When communicating in the unlicensed spectrum, the WLAN STA 152 and / or the WLAN AP 150 may perform a clear channel assessment (CCA) to determine whether the channel is available before communicating.

[0041] The small cell base station 102' may operate in a licensed and / or unlicensed spectrum. When operating in an unlicensed spectrum, the small cell base station 102' may employ LTE or 5G technology and use the same 5 GHz unlicensed spectrum as used by the WLAN AP 150. The small cell base station 102' employing LTE / 5G in the unlicensed spectrum may boost coverage and / or increase capacity of the access network. LTE in the unlicensed spectrum may be referred to as LTE Unlicensed (LTE-U), Licensed Assisted Access (LAA), or MulteFire.

[0042] The wireless communication system 100 may further include a millimeter wave (mmW) base station 180, which can operate in mmW frequencies and / or near mmW frequencies to communicate with UE 182. Extremely high frequency (EHF) is part of RF in the electromagnetic spectrum. EHF has a range of 30 GHz to 300 GHz and a wavelength between 1 mm and 10 mm. The radio waves in this band may be referred to as millimeter waves. Near mmW can be extended downward to a 3 GHz frequency with a wavelength of 100 mm. The super high frequency (SHF) band extends between 3 GHz and 30 GHz, which is also referred to as centimeter waves. Communications using mmW / near mmW radio frequency bands have high path loss and relatively short range. The mmW base station 180 and the UE 182 can utilize beamforming (transmitting and / or receiving) on ​​the mmW communication link 184 to compensate for the extremely high path loss and short range. In addition, it will be appreciated that in an alternative configuration, one or more base stations 102 may also use mmW or near mmW and beamforming for transmission. Accordingly, it will be appreciated that the foregoing explanation is merely an example, and should not be construed as limiting the various aspects disclosed herein.

[0043] Transmit beamforming is a technique for focusing an RF signal in a specific direction. Conventionally, when a network node (e.g., a base station) broadcasts an RF signal, the network node broadcasts the signal in all directions (omnidirectionally). With transmit beamforming, the network node determines where a given target device (e.g., UE) is located (relative to the transmitting network node) and projects a stronger downlink RF signal in that specific direction, thereby providing a faster (in terms of data rate) and stronger RF signal to the receiving device. In order to change the directionality of the RF signal when transmitting, the network node can control the phase and relative amplitude of the RF signal at each of the one or more transmitters that are broadcasting the RF signal. For example, a network node can use an antenna array (referred to as a "phased array" or "antenna array") that generates a beam of RF waves, and the beam of the RF wave can be "guided" to point in different directions without actually moving the antennas. Specifically, the RF current from the transmitter is fed to the individual antennas in the correct phase relationship so that the radio waves from the separate antennas are added together in the desired direction to increase the radiation, and canceled in the undesired direction to suppress the radiation.

[0044] In receive beamforming, a receiver uses a receive beam to amplify an RF signal detected on a given channel. For example, a receiver may increase the gain setting of an antenna array and / or adjust the phase setting of an antenna array in a particular direction to amplify the RF signal received from that direction (e.g., increase its gain level). Thus, when a receiver is referred to as performing beamforming in a certain direction, it means that the beam gain in that direction is high relative to the beam gain along other directions, or the beam gain in that direction is the highest compared to the beam gain in that direction of all other receive beams available to the receiver. This results in a stronger received signal strength (e.g., reference signal received power (RSRP), reference signal received quality (RSRQ), signal to interference plus noise ratio (SINR), etc.) for the RF signal received from that direction.

[0045] In 5G, the spectrum in which wireless nodes (e.g., base stations 102 / 180, UEs 104 / 182) operate is divided into multiple frequency ranges: FR1 (from 450 to 6000 MHz), FR2 (from 24250 to 52600 MHz), FR3 (above 52600 MHz), and FR4 (between FR1 and FR2). In a multi-carrier system (such as 5G), one of the carrier frequencies is called the "primary carrier" or "anchor carrier" or "primary serving cell" or "PCell", and the remaining carrier frequencies are called "secondary carriers" or "secondary serving cells" or "SCells". In carrier aggregation, the anchor carrier is a carrier operating on the primary frequency (e.g., FR1) utilized by the UE 104 / 182 and on the cell in which the UE 104 / 182 performs an initial radio resource control (RRC) connection establishment procedure or initiates an RRC connection re-establishment procedure. The primary carrier carries all common and UE-specific control channels. A secondary carrier is a carrier operating on a second frequency (e.g., FR2) that can be configured once an RRC connection is established between the UE 104 and the anchor carrier, and can be used to provide additional radio resources. The secondary carrier may contain only necessary signaling information and signals, for example, signaling information and signals that vary from UE to UE may not be present in the secondary carrier, because both the primary uplink and downlink carriers are typically UE-specific. This means that different UEs 104 / 182 in a cell may have different downlink primary carriers. The same is true for the uplink primary carrier. The network is able to change the primary carrier of any UE 104 / 182 at any time. For example, this is done to balance the load on different carriers. Since a "serving cell" (whether PCell or SCell) corresponds to a carrier frequency / component carrier that a base station is using to communicate, the terms "cell", "serving cell", "component carrier", "carrier frequency", etc. can be used interchangeably.

[0046] For example, still referring to Figure 1 , one of the frequencies utilized by the macrocell base station 102 may be an anchor carrier (or "PCell"), and the other frequencies utilized by the macrocell base station 102 and / or the mmW base station 180 may be secondary carriers ("SCells"). Simultaneous transmission and / or reception of multiple carriers enables the UE 104 / 182 to significantly increase its data transmission and / or reception rate. For example, two 20 MHz aggregated carriers in a multi-carrier system would theoretically result in a two-fold increase in data rate (i.e., 40 MHz) compared to the data rate achieved by a single 20 MHz carrier.

[0047] The wireless communication system 100 may further include one or more UEs (such as UE 190) that are indirectly connected to one or more communication networks via one or more device-to-device (D2D) or peer-to-peer (P2P) links. Figure 1 In the example of FIG. 1 , UE 190 has a D2D P2P link 192 with a UE 104 connected to a base station 102 (e.g., UE 190 can indirectly obtain cellular connectivity therefrom), and a D2D P2P link 194 with a WLAN STA 152 connected to a WLAN AP 150 (UE 190 can indirectly obtain WLAN-based Internet connectivity therefrom). In an example, the D2D P2P links 192 and 194 can use any well-known D2D RAT (such as LTE Direct (LTE-D), WiFi Direct (WiFi-D), etc.) to support.

[0048] The wireless communication system 100 may further include a UE 104 that may communicate with the macrocell base station 102 over the communication link 120 and / or with the mmW base station 180 over the mmW communication link 184. For example, the macrocell base station 102 may support a PCell and one or more SCells for the UE 104, and the mmW base station 180 may support one or more SCells for the UE 104. In an aspect, the UE 104 may include a prioritization manager 166 that may enable the UE 104 to perform the UE operations described herein. Note that although in Figure 1 Only one UE is illustrated as having a prioritization manager 166, but Figure 1 Any UE in the may be configured to perform the UE operations described herein.

[0049] Figure 2AAn example wireless network structure 200 is illustrated. For example, NGC 210 (also referred to as "5GC") can be functionally viewed as control plane functions 214 (e.g., UE registration, authentication, network access, gateway selection, etc.) and user plane functions 212 (e.g., UE gateway functions, access to data networks, IP routing, etc.), which operate in coordination to form a core network. User plane interface (NG-U) 213 and control plane interface (NG-C) 215 connect gNB 222 to NGC 210, in particular to control plane functions 214 and user plane functions 212. In an additional configuration, eNB 224 can also be connected to NGC 210 via NG-C 215 to control plane functions 214 and NG-U 213 to user plane functions 212. In addition, eNB 224 can communicate directly with gNB 222 via backhaul connection 223. In some configurations, the new RAN 220 may have only one or more gNBs 222, while other configurations include one or more eNBs 224 and one or more gNBs 222. The gNB 222 or the eNB 224 may communicate with the UE 204 (e.g., Figure 1 204). Another optional aspect may include one or more location servers 230a, 230b (sometimes collectively referred to as location servers 230) (which may correspond to LMF 196), which may be in communication with control plane function 214 and user plane function 212 in NGC 210, respectively, to provide location assistance for UE 204. Location servers 230 may be implemented as multiple separate servers (e.g., physically separate servers, different software modules on a single server, different software modules spread across multiple physical servers, etc.), or alternatively may each correspond to a single server. Location servers 230 may be configured to support one or more location services for UE 204, which may be connected to location servers 230 via the core network, NGC 210, and / or via the Internet (not illustrated). In addition, location servers 230 may be integrated into a component of the core network, or alternatively may be external to the core network (e.g., in new RAN 220).

[0050] Figure 2BAnother example wireless network structure 250 is illustrated. For example, the NGC 260 (also referred to as "5GC") can be functionally viewed as a control plane function provided by an access and mobility management function (AMF) 264, a user plane function (UPF) 262, a session management function (SMF) 266, an SLP 268, and an LMF 270, which operate in coordination to form a core network (i.e., the NGC 260). The user plane interface 263 and the control plane interface 265 connect the ng-eNB 224 to the NGC 260, in particular to the UPF 262 and the AMF 264, respectively. In an additional configuration, the gNB 222 can also be connected to the NGC 260 via a control plane interface 265 to the AMF 264 and a user plane interface 263 to the UPF 262. In addition, the eNB 224 can communicate directly with the gNB 222 via a backhaul connection 223, whether or not there is gNB direct connectivity with the NGC 260. In some configurations, the new RAN 220 may have only one or more gNBs 222, while other configurations include one or more ng-eNBs 224 and one or more gNBs 222. The gNB 222 or the ng-eNB 224 may communicate with the UE 204 (e.g., Figure 1 The base station of the new RAN 220 communicates with the AMF 264 264 over the N2 interface and communicates with the UPF 262 over the N3 interface.

[0051] The functions of AMF include registration management, connection management, reachability management, mobility management, lawful interception, session management (SM) message delivery between UE204 and SMF 266, transparent proxy service for routing SM messages, access authentication and access authorization, short message service (SMS) message delivery between UE 204 and short message service function (SMSF) (not shown), and security anchor functionality (SEAF). AMF also interacts with authentication server function (AUSF) (not shown) and UE 204, and receives intermediate keys established as a result of the UE 204 authentication process. In the case of authentication based on UMTS (Universal Mobile Telecommunications System) Subscriber Identity Module (USIM), AMF retrieves security materials from AUSF. The functions of AMF also include security context management (SCM). SCM receives keys from SEAF, which are used by SCM to derive keys that vary from access network to access network. The functionality of the AMF also includes location service management for regulatory services, location service messaging between the UE 204 and the location management function (LMF) 270 (which may correspond to the LMF 196) and between the new RAN 220 and the LMF 270, allocation of an evolved packet system (EPS) bearer identifier for interworking with the EPS, and notification of mobility events for the UE 204. In addition, the AMF also supports the functionality of non-3rd Generation Partnership Project (3GPP) access networks.

[0052] The functions of the UPF include: acting as an anchor point for intra-RAT / inter-RAT mobility (when applicable), acting as an external protocol data unit (PDU) session point for interconnection to a data network (not shown), providing packet routing and forwarding, packet inspection, user plane policy rule enforcement (e.g., gating, redirection, traffic steering), lawful interception (user plane collection), traffic usage reporting, user plane quality of service (QoS) handling (e.g., UL / DL rate enforcement, reflective QoS marking in DL), UL traffic verification (mapping of service data flows (SDFs) to QoS flows), transport level packet marking in UL and DL, DL packet buffering and DL data notification triggering, and sending and forwarding one or more "end markers" to the source RAN node.

[0053] The functions of SMF 266 include session management, UE Internet Protocol (IP) address allocation and management, selection and control of user plane functions, configuration of traffic steering for routing traffic to the correct destination at UPF, control of part of policy implementation and QoS, and downlink data notification. The interface that SMF 266 uses to communicate with AMF 264 is called the N11 interface.

[0054] Another optional aspect may include LMF 270, which may be in communication with NGC 260 to provide location assistance for UE 204. LMF 270 may be implemented as multiple separate servers (e.g., physically separate servers, different software modules on a single server, different software modules spread across multiple physical servers, etc.), or alternatively may each correspond to a single server. LMF 270 may be configured to support one or more location services for UE 204, which may be connected to LMF 270 via a core network, NGC 260, and / or via the Internet (not illustrated).

[0055] Figure 3 A block diagram of a design 300 of a base station 102 and a UE 104 is shown, which may be Figure 1 One for each base station and one for each UE in the base station 102. The base station 102 may be equipped with T antennas 334a through 334t, and the UE 104 may be equipped with R antennas 352a through 352r, where in general T ≥ 1 and R ≥ 1.

[0056] At the base station 102, the transmit processor 320 may receive data for one or more UEs from the data source 312, select one or more modulation and coding schemes (MCS) for each UE based at least in part on a channel quality indicator (CQI) received from the UE, process (e.g., encode and modulate) the data for each UE based at least in part on the MCS selected for the UE, and provide data symbols for all UEs. The transmit processor 320 may also process system information (e.g., for semi-static resource partitioning information (SRPI), etc.) and control information (e.g., CQI requests, grants, upper layer signaling, etc.), and provide overhead symbols and control symbols. The transmit processor 320 may also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS)) and synchronization signals (e.g., primary synchronization signals (PSS) and secondary synchronization signals (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 330 may perform spatial processing (e.g., precoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols, where applicable, and may provide T output symbol streams to T modulators (MOD) 332a to 332t. Each modulator 332 may process a respective output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each modulator 332 may further process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a downlink signal. The T downlink signals from modulators 332a to 332t may be transmitted via T antennas 334a to 334t, respectively. According to various aspects described in more detail below, position coding may be used to generate synchronization signals to convey additional information.

[0057] At UE 104, antennas 352a to 352r may receive downlink signals from base station 102 and / or other base stations and may provide received signals to demodulators (DEMODs) 354a to 354r, respectively. Each demodulator 354 may condition (e.g., filter, amplify, downconvert, and digitize) the received signal to obtain input samples. Each demodulator 354 may further process the input samples (e.g., for OFDM, etc.) to obtain received symbols. A MIMO detector 356 may obtain received symbols from all R demodulators 354a to 354r, perform MIMO detection on the received symbols where applicable, and provide detected symbols. A receive processor 358 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for UE 104 to a data sink 360, and provide decoded control information and system information to a controller / processor 380. The channel processor may determine reference signal received power (RSRP), received signal strength indicator (RSSI), reference signal received quality (RSRQ), channel quality indicator (CQI), etc. In some aspects, one or more components of the UE 104 may be included in a housing.

[0058] On the uplink, at the UE 104, a transmit processor 364 may receive and process data from a data source 362 and control information from a controller / processor 380 (e.g., for reports including RSRP, RSSI, RSRQ, CQI, etc.). The transmit processor 364 may also generate reference symbols for one or more reference signals. The symbols from the transmit processor 364 may be precoded by a TX MIMO processor 366, if applicable, further processed by modulators 354a through 354r (e.g., for DFT-s-OFDM, CP-OFDM, etc.), and transmitted to the base station 102. At the base station 102, uplink signals from the UE 104 and other UEs may be received by the antenna 334, processed by the demodulator 332, detected by the MIMO detector 336, if applicable, and further processed by the receive processor 338 to obtain decoded data and control information sent by the UE 104. The receive processor 338 may provide decoded data to a data sink 339 and decoded control information to a controller / processor 340. The base station 102 may include a communication unit 344 and communicate with the location server 172 via the communication unit 344. The location server 172 130 may include a communication unit 394, a controller / processor 390, and a memory 392.

[0059] The controller / processor 340 of the base station 102, the controller / processor 380 of the UE 104, the controller / processor 380 of the location server 172, and / or Figure 3Any other component may perform one or more techniques associated with prioritization of positioning assistance data according to a positioning method, as described in more detail elsewhere herein. For example, the controller / processor 340 of the base station 102, the controller / processor 380 of the UE 104, the controller / processor 380 of the location server 172, and / or Figure 3 any other component may execute or direct, for example, Figure 7 procedure 700, Figure 8 procedure 800, and / or the operation of other procedures as described herein. The memories 342, 382, 392 may store data and program code for the base station 102, the UE 104, and the location server 172, respectively. In some aspects, the memories 342, the memory 382, and / or the memory 392 may include non-transitory computer-readable media storing one or more instructions for wireless communication. For example, when executed by one or more processors of the base station 102, the UE 104, and / or the location server 172, the one or more instructions may execute or direct, for example, Figure 7 procedure 700, Figure 8 procedure 800, and / or the operation of other procedures as described herein. The scheduler 346 may schedule the UE for data transmission on the downlink and / or uplink.

[0060] As indicated above, Figure 3 is provided as an example. Other examples may be different from the example described with respect to Figure 3 .

[0061] Figure 4 FIG. shows the structure of an exemplary subframe sequence 400 with positioning reference signal (PRS) positioning opportunities according to aspects of the present disclosure. The subframe sequence 400 may be applicable to the broadcast of PRS signals from a base station (e.g., any base station described herein) or other network nodes. The subframe sequence 400 may be used in an LTE system, and the same or similar subframe sequences may be used in other communication technologies / protocols (such as 5G and NR). In Figure 4 , time is represented horizontally (e.g., on the X-axis), where time increases from left to right, and frequency is represented vertically (e.g., on the Y-axis), where frequency increases (or decreases) from bottom to top. As Figure 4 shown, the downlink and uplink radio frames 410 may each have a duration of 10 milliseconds (ms). For the downlink frequency division duplex (FDD) mode, in the illustrated example, the radio frame 410 is organized into ten subframes 412 each having a duration of 1 ms. Each subframe 412 includes two time slots 414, each time slot having a duration of 0.5 ms, for example.

[0062] In the frequency domain, the available bandwidth may be divided into evenly spaced orthogonal subcarriers 416 (also referred to as "tones" or "bins"). For example, for a normal length cyclic prefix (CP) using, for example, 15 kHz spacing, the subcarriers 416 may be grouped into groups of twelve (12) subcarriers. A resource (represented as a block of subframes 412) of one OFDM symbol length in the time domain and one subcarrier in the frequency domain is referred to as a resource element (RE). Each grouping of 12 subcarriers 416 and 14 OFDM symbols is referred to as a resource block (RB), and in the above example, the number of subcarriers in a resource block may be written as For a given channel bandwidth, the number of available resource blocks on each channel 422 (which is also referred to as a transmission bandwidth configuration 422) is represented as For example, for the 3 MHz channel bandwidth in the above example, the number of available resource blocks on each channel 422 is given by Note that the frequency components of a resource block (eg, 12 subcarriers) are called physical resource blocks (PRBs).

[0063] The base station can Figure 4 , or other physical layer signaling sequences that can be measured and used for UE (e.g., any UE described herein) position estimation. Other types of wireless nodes in a wireless communication network (e.g., a distributed antenna system (DAS), a remote radio head (RRH), a UE, an AP, etc.) may also be configured to transmit signals that support a PRS signal (i.e., a downlink (DL) PRS) in a similar or identical frame configuration as shown in . Figure 4 The PRS signal may be configured in a manner similar to (or identical to) that described in .

[0064] A set of resource elements used to transmit a PRS signal is referred to as a "PRS resource". The set of resource elements can span multiple PRBs in the frequency domain and can span N (e.g., one or more) consecutive symbols within a time slot 414 in the time domain. For example, the cross-hatched resource elements in the time slot 414 can be examples of two PRS resources. A "PRS resource set" is a set of PRS resources used to transmit a PRS signal, where each PRS resource has a PRS resource identifier (ID). In addition, the PRS resources in the PRS resource set are associated with the same transmit receive point (TRP). The PRS resource ID in the PRS resource set is associated with a single beam transmitted from a single TRP (wherein a TRP can transmit one or more beams). Note that this does not have any implication as to whether the TRP and beam transmitting the signal are known to the UE.

[0065] PRS may be transmitted in special positioning subframes grouped into positioning opportunities. A PRS opportunity is an example of a periodically repeating time window (e.g., consecutive time slots) in which PRS is expected to be transmitted. Each periodically repeating time window may include a group of one or more consecutive PRS opportunities. Each PRS opportunity may include a number N PRS The PRS positioning opportunities for the cellular cells supported by the base station can be arranged at intervals (given by the number T PRS milliseconds or subframes) occurs periodically. As an example, Figure 4 Explains the periodicity of positioning opportunities, where N PRS is equal to 4(418), and T PRS is greater than or equal to 20 (420). In some aspects, T PRS It may be measured in terms of the number of subframes between the start of consecutive positioning opportunities.Multiple PRS opportunities may be associated with the same PRS resource configuration, in which case each such opportunity is referred to as a "PRS resource opportunity" or the like.

[0066] The PRS may be transmitted at a constant power. The PRS may also be transmitted at zero power (i.e., muted). When PRS signals between different cells overlap by appearing at the same time or nearly the same time, muting of regularly scheduled PRS transmissions may be useful. In this case, PRS signals from some cells may be muted, while PRS signals from other cells are transmitted (e.g., at a constant power). Silence may assist the UE in signal acquisition and time of arrival (TOA) and reference signal time difference (RSTD) measurements of PRS signals that are not muted (by avoiding interference from muted PRS signals). Silence may be considered as not transmitting PRS for a given positioning opportunity for a particular cell. A bit string may be used to signal a muting mode (also referred to as a muting sequence) to the UE (e.g., using the LTE Positioning Protocol (LPP)). For example, in a bit string signaled to indicate a muting mode, if the bit at position j is set to '0', the UE may infer that the PRS is muted for the jth positioning opportunity.

[0067] To further improve the audibility of the PRS, the positioning subframe may be a low-interference subframe transmitted without a user data channel. As a result, in an ideally synchronized network, the PRS may be interfered with by PRSs of other cells with the same PRS pattern index (i.e., with the same frequency shift), but not by data transmissions. The frequency shift may be defined as a function of the PRS ID for a cell or other transmission point (TP) (denoted by ) or, if no PRS ID is assigned, a function of the physical cell identifier (PCI) (denoted by ), which results in an effective frequency reuse factor of six (6).

[0068] Also to improve the audibility of the PRS (e.g., when the PRS bandwidth is limited, such as to have only 6 resource blocks corresponding to a 1.4 MHz bandwidth), the frequency band for consecutive PRS positioning occasions (or consecutive PRS subframes) may be changed via frequency hopping in a known and predictable manner. In addition, a cell supported by a base station may support more than one PRS configuration, where each PRS configuration may include a unique frequency shift (vshift), a unique carrier frequency, a unique bandwidth, a unique code sequence, and / or a PRS configuration having a specific number of subframes per positioning occasion (N). PRS ) and specific periodicity (T PRS In some implementations, one or more PRS configurations supported in a cell may be used for directional PRS and may then have additional unique properties (such as a unique transmission direction, a unique horizontal angle range, and / or a unique vertical angle range).

[0069] The PRS configuration as described above including the PRS transmission / muting schedule is signaled to the UE to enable the UE to perform PRS positioning measurements. It is not desirable for the UE to blindly perform detection of the PRS configuration.

[0070] Note that the terms "positioning reference signal" and "PRS" may sometimes refer to a specific reference signal used for positioning in an LTE / NR system. However, as used herein, unless otherwise indicated, the terms "positioning reference signal" and "PRS" may refer to any type of reference signal that can be used for positioning, such as but not limited to: PRS signals in LTE / NR, navigation reference signals (NRS), transmitter reference signals (TRS), cell-specific reference signals (CRS), channel state information reference signals (CSI-RS), primary synchronization signals (PSS), secondary synchronization signals (SSS), etc.

[0071] Similar to the DL PRS transmitted by the base station discussed above, the UE may transmit the UL PRS for positioning. The UL PRS may be, for example, a sounding reference signal (SRS) for positioning. Using the DL PRS received from the base station and / or the UL PRS transmitted to the base station, the UE may perform various RAT-related positioning measurements. For example, the LTE system uses the DL PRS for observed time difference of arrival (OTDOA) positioning measurements. On the other hand, the NR system may use the DL PRS for several different kinds of RAT-related positioning measurements (such as time difference of arrival (TDOA), angle of departure (AoD)), and may jointly use the DL PRS and the UL PRS to perform multi-cell positioning measurements (such as multi-cell round trip time (M-RTT)). Other types of RAT-related positioning measurements that may be used for positioning estimation for the UE include, for example, time of arrival (TOA), reference signal time difference (RSTD), reference signal received power (RSRP), time difference between reception and transmission of a signal (Rx-Tx), or angle of arrival (AoA). There are other positioning methods, including methods that do not rely on PRS. For example, enhanced cell ID (E-CID) is based on radio resource management (RRM) measurements.

[0072] Using UE-assisted positioning methods, the UE 104 can obtain location measurements and send these measurements to a location server (e.g., location server 230a, 230b, or LMF 270) for use in calculating a location estimate for the UE 104. For example, the location measurements can include one or more of TDOA, AOD, M-RTT, etc. Using UE-based positioning methods, the UE 104 can obtain location measurements (e.g., which can be the same or similar to the location measurements of the UE-assisted positioning method), and can calculate the location of the UE 104 (e.g., with the help of assistance data received from a location server (such as location server 230a, 230b, or LMF 270)). Using network-based positioning methods, one or more base stations 102 or APs can obtain location measurements (e.g., UL-TDOA, Rx-Tx measurements for signals transmitted by the UE 104) and / or can receive measurements obtained by the UE 104, and can send these measurements to a location server for use in calculating a location estimate for the UE 104. The base station 102 may provide information to the location server, which may include timing and configuration information for PRS transmissions and location coordinates. The location server may provide some or all of this information as positioning assistance data to the UE 104 to help detect and measure PRS signals from one or more base stations. The assistance data may further include the location of the base stations, which may be used by the UE 104 to calculate a positioning estimate in a UE-based positioning process.

[0073] The assistance data provided for the OTDOA positioning method in the LTE system can provide priority differentiation of measurements to be performed, for example, in the case where the UE cannot support all available neighboring cells included in the assistance data. For example, the positioning assistance data for LTE OTDOA may include the information element (IE) OTDOA-NeighbourCellInfoList (OTDOA-neighbor cellular cell information list). The IE OTDOA-NeighbourCellInfoList can be used by the location server to provide neighbor cellular cell information of the OTDOA assistance data. If the target device (i.e., the UE receiving the auxiliary data) is not capable of supporting additional neighbor cells (e.g., as indicated by the absence of IEadditionalNeighbourCellInfoList in OTDOA-ProvideCapabilities), the set of cells in the OTDOA-NeighbourCellInfoList may be grouped by frequency layer and in descending order of priority for measurements to be performed by the target device, where the first cell in the list is the highest priority for measurement and where the same E-UTRA Absolute Radio Frequency Channel Number (earfcn) does not appear in more than one instance of OTDOA-NeighbourFreqInfo.

[0074] If the target device is capable of supporting additional neighbor cells (e.g., as indicated by the presence of the IE additionalNeighbourCellInfoList in OTDOA-ProvideCapabilities), the list can contain all cells belonging to the same frequency layer (up to 3x24 cells) or cells from different frequency layers, where the first cell in the list remains the highest priority for measurement.

[0075] The prioritization of cells in the list for LTE OTDOA is left to the location server implementation. Additionally, the target device should provide available measurements in the same order as provided by the server.

[0076] As mentioned above, the NR system allows more types of positioning methods than LTE. Accordingly, for positioning in the NR system, the positioning assistance data provided to the target UE may include common PRS assistance data for RAT-related positioning, and PRS assistance data that varies with the positioning method and indexes the common PRS assistance data. For example, the common PRS assistance data for RAT-related positioning may be provided in IENR-DL-PRS-AssistanceData (NR-DL-PRS-Assistance Data), and the IE NR-DL-PRS-AssistanceData may be used by the location server to provide the target UE with DL-PRS assistance data that is common to all positioning methods. Table 1 illustrates a fragment of an abstract syntax notation 1 (ASN.1) showing the NR-DL-PRS-AssistanceData information element (IE).

[0077]

[0078]

[0079] Table 1

[0080] In NR-DL-PRS-AssistanceData, the nr-DL-PRS-Config field specifies the PRS configuration of the TRP. The nr-DL-PRS-ReferenceInfo field indicates the ID of the reference TRP. The nr-DL-PRS-ResourceID-List field specifies the nr-DL PRS resource ID, where if this field is used in a measurement report, only a single nr-DL-ResourceID is included.

[0081] In NR systems, in addition to common PRS assistance data (e.g., as described above), PRS assistance data that is specific to the positioning method and indexes the common PRS assistance data is also provided. Thus, for example, PRS assistance data dedicated to DL TDOA can be provided by the location server to the UE 104. The IE NR-DL-TDOA-ProvideAssistanceData can be used by the location server to provide assistance data to achieve UE-assisted and UE-based NR DL TDOA. It can also be used to provide error causes specific to NR DL TDOA positioning. Table 2 illustrates a fragment of the Abstract Syntax Notation 1 (ASN.1) showing the NR-DL-TDOA-ProvideAssistanceData IE.

[0082]

[0083] Table 2

[0084] In Table 2, for UE-based NR DL-TDOA, UEB exists conditionally, otherwise, that is, for UE-assisted NR DL-TDOA, UEB does not exist.

[0085] In another example, PRS assistance data specific to DL AoD may be provided by the location server to the UE 104. IE N R-DL-AoD-ProvideAssistanceData may be used by the location server to provide assistance data to enable UE-assisted and UE-based NR-DL-AoD. It may also be used to provide error causes specific to NR DL AoD positioning. Table 3 illustrates a fragment of an Abstract Syntax Notation 1 (ASN.1) showing the NR-DL-AoD-ProvideAssistanceData IE.

[0086]

[0087]

[0088] Table 3

[0089] In Table 3, for UE-based NR DL-AoD, UEB exists conditionally, otherwise, that is, for UE-assisted NR DL-AoD, UEB does not exist.

[0090] In another example, PRS assistance data specific to MRTT may be provided by the location server to the UE 104. IE N R-Multi-RTT-ProvideAssistanceData may be used by the location server to provide assistance data to enable UE-assisted NR Multi-RTT. It may also be used to provide error causes specific to NR Multi-RTT positioning. Table 4 illustrates a fragment of an Abstract Syntax Notation 1 (ASN.1) showing the NR-Multi-RTT-ProvideAssistanceData IE.

[0091]

[0092] Table 4

[0093] The IE NR-SelectedDL-PRS-IndexList in each positioning method-specific PRS assistance data shown in Tables 2, 3, and 4 may be used by the location server to provide the target UE 104 with the selected frequency layer index, TRP index, PRS resource set index, and resource index from the nr-DL-PRS-AssistanceDataList (e.g., NR-DL-PRS-AssistanceData from Table 1) of the common PRS assistance data. Conventionally, in situations where multiple positioning methods may be used, the NR-DL-PRS-ProvideAssistanceData may only be present in the assistance data for one positioning method. Table 5 illustrates a fragment of an Abstract Syntax Notation 1 (ASN.1) showing the NR-SelectedDL-PRS-IndexList IE.

[0094]

[0095]

[0096] Table 5

[0097] Thus, the IE SelectedDL-PRS-IndexList may configure frequency layers, TRPs, PRS resource sets, and PRS resources for the UE 104, e.g., as known in the art and described in 3GPP Technical Specification (TS) 38.214. For example, a frequency layer includes one or more PRS resource sets and may be defined by one or more of a subcarrier spacing of a DL PRS resource, a cyclic prefix of a DL PRS resource, and an absolute frequency of a reference resource block. The UE may be configured with an ID that is defined such that it is associated with multiple DL PRS resource sets from the same cell (TRP). A PRS resource set includes one or more DL PRS resources and may be defined by one or more of the following: an identity of the DL PRS resource set configuration, a DL PRS resource periodicity, how many times each DL-PRS resource is repeated for a single instance of a DL-PRS resource set, an offset in number of time slots between two repeated instances of a DL PRS resource with the same DL-PRS-ResourceID within a single instance of a DL PRS resource set, a muting pattern defined by a bitmap of time positions at which DL PRS resources are not expected to be transmitted for the DL PRS resource set, a time offset of SFN0 time slot 0 of the transmitting cell, a time slot offset relative to SFN0 time slot 0, a comb size of the DL PRS resource, a resource bandwidth defined by the number of resource blocks configured for PRS transmission, and a starting PRB index of the DL PRS resource relative to reference point A. PRS resources can be defined by one or more of the following: a resource list that determines the DL PRS resources included in a DL PRS resource set, a DL PRS resource configuration identity, a sequence ID used to initialize a pseudo-random generator for generating a DL PRS sequence for a given DL PRS resource, a starting resource element (RE) offset in frequency of the first codeword within the DL PRS resource, the starting time slot of the DL PRS resource, the starting codeword of the DL PRS resource within the starting time slot, the number of codewords of the DL PRS resource within the time slot, and any quasi-co-location information of the DL PRS resource with other reference signals.

[0098] During the positioning session, the UE 104 may provide its positioning capabilities to the location server. For example, the UE 104 may provide a shared DL PRS processing capability. For example, assuming the maximum DL PRS bandwidth in MHz supported and reported by the UE, the UE 104 may indicate the DL PRS symbol duration in ms that the UE can process per T ms. For example, for frequency range 1 (FR1) (410 MHz-7125 MHz), the UE may support durations of {5, 10, 20, 40, 50, 80, 100} symbols, and for frequency range 2 (FR2) (24250 MHz-52600 MHz), the UE may support durations of {50, 100, 200, 400} symbols. Assuming the maximum DL PRS bandwidth in MHz supported and reported by the UE, the UE 104 may indicate the DL PRS symbol duration in ms that the UE is capable of processing per T ms, in the form of T, which may be {8, 16, 20, 30, 40, 80, 160, 320, 640, 1280} ms, or in the form of N, which may be {0.125, 0.25, 0.5, 1, 2, 4, 8, 12, 16, 20, 25, 30, 35, 40, 45, 50} ms. It should be noted that the UE 104 is not expected to support a DL PRS bandwidth that exceeds the reported DL PRS bandwidth value. The UE DL PRS processing capability may be defined for a single positioning frequency layer. The UE DL PRS processing capability may be agnostic to the DL PRS comb factor configuration. The UE may indicate the maximum number of positioning frequency layers supported by the UE across all FR1 and FR2 bands, for example, as value = {1,2,3,4}. The above may be reported assuming that the configured measurement gaps and the maximum ratio of measurement gap length (MGL) / measurement gap repetition period (MGRP) do not exceed X%.

[0099] UE 104 may further provide its PRS resource capabilities per method to the location server. For example, UE 104 may provide the location server with its DL PRS resource capabilities for DL-TDOA. For example, UE 104 may indicate the maximum number of DL PRS resource sets per TRP per frequency layer, whose value = {1, 2}. UE 104 may indicate the maximum number of DL PRS resources per DL PRS resource set, whose value = {1, 4, 8, 16, 32, 64}. UE 104 may indicate the maximum number of DL PRS resources across all frequency layers, TRPs, and DL PRS resource sets, whose value = {64, 128, 192, 256, 512, 1024, 2048}. UE 104 may indicate the maximum number of TRPs across all positioning frequency layers per UE, whose value = [{16, 32, 64, 96, 128, 256} or {3, 12, 64, 256}]. UE 104 may indicate the maximum number of DL PRS resources per positioning frequency layer, whose value = {32, 64, 128, 256, 512, 1024]. UE 104 may indicate the maximum number of TRPs per frequency layer, whose value = {8, 16, 32, 64}. UE 104 may indicate the maximum number of DL PRS resources per TRP across all frequency layers, whose value is set to: {4, 8, 16, 32, 64, 128}.

[0100] UE 104 may provide the location server with its capabilities for DL ​​PRS resources for DL-AoD. For example, UE 104 may indicate the maximum number of DL PRS resource sets per TRP per frequency layer supported by the UE, with a value = {1, 2}. UE 104 may indicate the maximum number of DL PRS resources per DL PRS resource set, with a value = {4, 8, 16, 32, 64}. UE 104 may indicate the maximum number of DL PRS resources supported by the UE across all frequency layers, TRPs, and DL PRS resource sets, with a value = {64, 128, 192, 256, 512, 1024, 2048}. UE 104 may indicate the maximum number of TRPs per UE across all positioning frequency layers, with a value = [{16, 32, 64, 128, 256} or {3, 12, 64, 256}]. The UE 104 may indicate the maximum number of DL PRS resources per positioning frequency layer, whose value = {32, 64, 128, 256, 512, 1024}. The UE 104 may indicate the maximum number of DL PRS resources per TRP across all frequency layers, whose value is set to: {4, 8, 16, 32, 64, 128}.

[0101] UE 104 may provide the location server with its capabilities for DL ​​PRS resources for Multi-RTT. For example, UE 104 may indicate the maximum number of DL PRS resource sets per TRP per frequency layer, whose value = {1, 2}. UE 104 may indicate the maximum number of DL PRS resources per DL PRS resource set, whose value = {1, 4, 8, 16, 32, 64}. UE 104 may indicate the maximum number of DL PRS resources across all frequency layers, TRPs, and DL PRS resource sets, whose value = {64, 128, 192, 256, 512, 1024, 2048}. UE 104 may indicate the maximum number of TRPs per UE across all positioning frequency layers, whose value = [{16, 32, 64, 96, 128, 256} or {3, 12, 64, 256}]. UE 104 may indicate the maximum number of DL PRS resources per positioning frequency layer, with value = {32, 64, 128, 256, 512, 1024]. UE 104 may indicate the maximum number of DL PRS resources per TRP across all frequency layers, with value set to: {4, 8, 16, 32, 64, 128}. UE 104 may indicate the maximum number of TRPs per frequency layer, with value = {8, 16, 32, 64}. UE 104 may indicate the number of positioning layers supported by the UE, with value == {1, 2, 3, 4}.

[0102] In one implementation, the PRS assistance data may be defined to provide priority distinction of PRS signals to be measured by RAT-related positioning methods. For example, for each of the positioning methods TDOA, AoD, and M-RTT, in the corresponding positioning assistance data for each positioning method (e.g., NR-DL-TDOA-ProvideAssistanceData in Table 2, NR-DL-AoD-ProvideAssistanceData in Table 3, and NR-Multi-RTT-ProvideAssistanceData in Table 4, respectively), the selected PRS may be grouped into nr-SelectedDL-PRS-IndexList-r16 based on the priority distinction.

[0103] In one implementation, frequency layers may be prioritized within each NR-SelectedDL-PRS-PerFreq-r16 (NR-selected DL-PRS-per frequency-r16) of the NR-SelectedDL-PRS-IndexList-r16 shown in Table 5. Frequency layers may be prioritized, for example, by prioritizing one frequency layer over another or by assigning equal priority to each frequency layer. For example, in one option, the frequency layers may be grouped in descending order in which the target UE 104 will perform measurements for each corresponding positioning method (if the UE 104 reports the frequency layers by positioning method, otherwise it may span all positioning methods). The first frequency layer in the list may have the highest priority for measurement. In another option, all frequency layers may have equal priority. If the frequency layers have equal priority, the auxiliary data may indicate that equal priority will be assigned, or the equal priority for the frequency layers may be a fixed rule encoded in the UE 104. If the frequency layers have equal priority, the UE 104 may select one or more TRPs from each frequency layer to perform PRS measurements, and perform PRS measurements from each selected TRP in each frequency layer, for example in a round-robin algorithm, and then return to a frequency layer to perform additional PRS measurements from a different TRP. When the frequency layers have equal priority, the UE 104 may select the first frequency layer for PRS measurement based on the order provided in the assistance data or based on the frequency layer identifiers (e.g., the lowest identifier is first). Thus, the UE 104 performs PRS measurements from approximately an equal number of TRPs in each frequency layer.

[0104] In one implementation, TRPs may be prioritized within each NR-SelectedDL-PRS-PerFreq-r16 of NR-ProvideAssistanceData-r16 shown in Table 5. TRPs may be prioritized, for example, by prioritizing one TRP over another or by assigning equal priority to each TRP. For example, in one option, the TRPs may be grouped in descending order of the measurements performed by the target UE 104 for the corresponding positioning method, with the first TRP in the list having the highest priority for measurement. In another option, all TRPs may have equal priority. If the TRPs have equal priority, the assistance data may indicate that equal priority will be assigned, or the equal priority for the TRPs may be a fixed rule encoded in the UE 104. If the TRPs have equal priority, the UE 104 may select one or more PRS resource sets from each TRP to perform PRS measurements, and perform PRS measurements from each selected PRS resource set in each TRP, for example in a round-robin algorithm, and then return to a TRP to perform additional PRS measurements from a different PRS resource set. When the TRPs have equal priority, the UE 104 may select a TRP for PRS measurement based on an order provided in the assistance data or based on a TRP identifier (e.g., lowest identifier first). Thus, the UE 104 performs PRS measurements from approximately an equal number of PRS resource sets for each TRP.

[0105] In one implementation, within each DL-SelectedPRS-ResourceSetIndex-r16 of the NR-SelectedDL-PRS-PerFreq-r16 shown in Table 5, the PRS resource sets within the TRP may be prioritized. The PRS resource sets may be prioritized, for example, by prioritizing one PRS resource set over another PRS resource set or by assigning equal priority to each PRS resource set. For example, in one option, the PRS resource sets may be grouped in descending order in which the target UE 104 performs measurements for the corresponding TRP of the corresponding positioning method, with the first PRS resource set in the list being the highest priority for measurement. In another option, all PRS resource sets may have equal priority. If the PRS resource sets have equal priority, the assistance data may indicate that equal priority will be assigned, or the equal priority for the PRS resource sets may be a fixed rule encoded in the UE 104. If the PRS resource sets have equal priority, the UE 104 may select one or more PRS resources from each PRS resource set to perform PRS measurements, and may perform PRS measurements from each selected PRS resource in each PRS resource set, for example, in a round-robin algorithm, and then return to a PRS resource set to perform additional PRS measurements from different PRS resources. When the PRS resource sets have equal priority, the UE 104 may select a first PRS resource set for PRS measurement based on an order provided in the assistance data or based on a PRS resource set identifier (e.g., the lowest identifier is first). Thus, the UE 104 performs PRS measurements from approximately an equal number of PRS resources of each PRS resource set.

[0106] In one implementation, within each DL-SelectedPRS-ResourceSetIndex-r16 shown in Table 5, the PRS resources within the PRS resource set may be prioritized. The PRS resources may be prioritized, for example, by prioritizing one PRS resource over another or by assigning equal priority to each PRS resource. For example, in one option, the PRS resources may be grouped in descending order in which the target UE 104 performs measurements on the corresponding PRS resource set for the corresponding TRP of the corresponding positioning method, with the first PRS resource in the list being the highest priority for measurement. In another option, all PRS resources within the PRS set may have equal priority. If the PRS resources have equal priority, the assistance data may indicate that equal priority will be assigned, or the equal priority for the PRS resources may be a fixed rule encoded in the UE 104. When the PRS resources have equal priority, the UE 104 may select a first PRS resource for PRS measurement based on the frequency layer identifier (eg, lowest identifier first).

[0107] Thus, one or more of the frequency layer, TRP, PRS resource set, and PRS resource may be prioritized in the assistance data per positioning method. For example, the PRS resource set may be prioritized for positioning measurements without prioritizing the frequency layer, TRP, and PRS resource. In another example, the PRS resource and the PRS resource set may be prioritized for positioning measurements without prioritizing the frequency layer and TRP.

[0108] There may be different priority rules for different positioning methods. In other words, different positioning methods may have different sets of "frequency layer prioritization", or "TRP prioritization", or "PRS resource set prioritization", or "PRS resource prioritization", or any different combination thereof. For example, if there are more configured PRS resources than the maximum number reported by UE 104 in its capability report, UE 104 may receive all PRS resources and prioritize measurements of at least one PRS resource set from each TRP, and then return to one TRP for measurement, so that UE 104 can perform PRS measurements from approximately an equal number of TRPs per frequency layer.

[0109] As an example, if the UE measurement capability has a maximum number of PRS resource sets per TRP per frequency layer, and the configured PRS resource sets per TRP are greater than the reported capability, the UE 104 may prioritize the first PRS resource set listed in the information about the PRS resource sets. In other words, the assistance data from the location server may list the PRS resource sets in the order in which they are to be measured, and the UE 104 may give a higher priority for measurement to the first listed PRS resource set.

[0110] In another example, if the UE measurement capability has a maximum number of PRS resources per PRS resource set, and if the configured PRS resources per PRS resource set are greater than the reported capability, the UE 104 may prioritize the first PRS resource of the PRS resource set. In other words, the assistance data from the location server may list the PRS resources per PRS resource set in the order in which they are to be measured, and the UE 104 may give a higher priority for measurement to the first listed PRS resource.

[0111] In another example, if the UE measurement capability has a maximum number of PRS resources across all frequency layers, TRPs, and PRS resource sets, the UE 104 can prioritize based on frequency layer, then based on TRP, then based on PRS resource set, and then based on PRS resource, or the UE 104 can prioritize the PRS resource sets equally, for example, prioritizing at least one PRS resource set from each TRP and then selecting a second resource set for the same TRP.

[0112] In another example, if the UE measurement capability has a maximum number of TRPs per UE across all positioning frequency layers, the UE 104 may prioritize based on frequency layer and then based on TRP, such that the UE measures PRSs from all TRPs of the most important frequency layer first, and then measures PRSs from the second frequency layer. In other words, the UE 104 may prioritize the first frequency layer and all TRPs in the first frequency layer over the second frequency layer and all TRPs in the second frequency layer. In another option, the TRPs may have equal priority, and the UE 104 may measure PRSs from at least one TRP from each frequency layer, and then measure PRSs from the second TRP from each frequency layer, and so on. In this case, the UE processes approximately an equal number of TRPs per frequency layer.

[0113] In another example, if the UE measurement capability has a maximum number of PRS resources per positioning frequency layer, the UE 104 can prioritize based on TRP, then based on PRS resource set, then based on PRS resource. In other options, the UE 104 can prioritize at least one PRS resource set from each TRP, and then select a second PRS resource set for the same TRP.

[0114] For example, Figure 5A , 5B , 5C and 5D illustrate the hierarchy of frequency layers, TRPs, PRS resource sets, and PRS resources. For simplicity, only a single frequency layer (layer 1) is illustrated, but it should be appreciated that multiple frequency layers may exist. Under a single frequency layer (layer 1), two separate TRPs (TRP1, TRP2) are illustrated, but there may be additional (or fewer) TRPs. Under a first TRP (TRP1), four PRS resources are illustrated, of which two PRS resources (Res 1 and Res 2) are under a PRS resource set (set 1), and two PRS resources (Res 3 and Res 4) are under a separate PRS resource set (set 2). Similarly, under a second TRP (TRP 2), four PRS resources are illustrated, of which two PRS resources (Res 5 and Res 6) are under a PRS resource set (set 3), and two PRS resources (Res 7 and Res 8) are under another PRS resource set (set 4). It should be appreciated that there may be additional (or fewer) PRS resource sets within each TRP, and there may be additional (or fewer) PRS resources within each PRS resource set. Figure 5A , 5B Each of 5C and 5D illustrates a different prioritization of positioning measurements.

[0115] As an example, Figure 5A Prioritization 500 of PRS resource sets within a TRP according to a first option is illustrated, for example, where each PRS resource set may be grouped in descending order of measurements to be performed by a target UE 104 for a corresponding TRP for a particular positioning method. For example, in positioning assistance data for a particular positioning method, a PRS resource set for TRP 1 (set 2) may be listed before a PRS resource set for the same TRP 1 (set 1). Accordingly, the UE 104 will measure PRS signals from all PRS resources under the higher priority PRS resource set (set 2) and subsequently measure PRS from PRS resources under the lower priority PRS resource set (set 1). Figure 5AThe order of performing PRS measurements from PRS resources is illustrated with circles and numbers indicating the measurement order. Accordingly, based on the prioritization of the PRS resource sets, UE 104 will first perform PRS measurements from (1) PRS resources RES 3 and (2) RES 4 under set 2, and then perform PRS measurements from (3) PRS resources RES 1 and (4) RES 2.

[0116] Figure 5B Similar to Figure 5A , but illustrates prioritization 520 of PRS resource sets within a TRP according to a second option, for example, where each PRS resource set is given equal priority. For example, for a particular positioning method, the positioning assistance data may indicate that equal priority is given to PRS resource sets. Accordingly, the UE 104 may select one or more PRS resources from each PRS resource set to perform PRS measurements, and may perform PRS measurements from each selected PRS resource in each PRS resource set, and then return to a PRS resource set to perform additional PRS measurements from different PRS resources. The UE 104 may select which PRS resource set to process first, for example, based on an order provided in the assistance data. For example, circles and numbers are used to indicate the measurement order, Figure 5B It is explained that based on equal priority differentiation, UE 104 will first (1) perform PRS measurement from PRS resources (RES1) under a first PRS resource set (Set 1), then (2) perform second PRS measurement from a second PRS resource (RES3) under a different PRS resource set (Set 2), then return to the first PRS resource set (Set 1) to (3) perform PRS measurement from a third PRS resource (RES 2), and return to the second PRS resource set (Set 2) to (4) perform PRS measurement from a fourth PRS resource (RES 4).

[0117] As an example, Figure 5C Illustrated is prioritization 550 of TRPs within a frequency layer according to a second option (e.g., where each TRP is given equal priority) and prioritization of PRS resource sets within a TRP according to a first option (e.g., where each PRS resource set can be grouped in descending order of measurements to be performed by the target UE 104 for the corresponding TRP for a particular positioning method). Accordingly, where the TRPs have equal priority, the UE 104 will select a PRS resource set from each TRP to perform PRS measurements, and perform PRS measurements from each PRS resource set in each TRP, and then return to a TRP to perform additional PRS measurements from a different PRS resource set. Additionally, each PRS resource set can be grouped in descending order of measurements to be performed by the target UE 104 for the corresponding TRP for a particular positioning method. For example, circles and numbers are used to indicate the measurement order, Figure 5C Explaining the equal priority distinction based on TRPs and the higher priority given to PRS resource sets, it is possible to (1) perform positioning measurements using PRS resources (RES1) under a first PRS resource set (set 1) under a first TRP (TRP 1), followed by (2) performing positioning measurements using PRS resources (RES 5) under a second PRS resource set (set 3) under a different TRP (TRP 2), and then revisiting the first TRP (TRP 1) for additional PRS measurements. Due to the priority distinction for PRS resource sets, it is then possible to (3) perform PRS measurements using PRS resources (RES2) under the first PRS resource set (set 1), followed by (4) performing measurements using PRS resources (RES 6) under the second PRS resource set (set 3). This pattern is repeated using different PRS resource sets (set 2) under the first TRP (TRP 1) and PRS resource sets (set 4) under the second TRP (TRP 2) to perform positioning measurements (5), (6), (7) and (8) using corresponding PRS resources (RES 3), (RES 7), (RES 4) and (RES 8).

[0118] As an example, Figure 5D Another prioritization 570 of TRPs within a frequency layer according to a second option (e.g., where each TRP is given equal priority) and prioritization of PRS resource sets within a TRP according to the second option (e.g., where each PRS resource set is given equal priority) are illustrated. As discussed above, in the case where the TRPs have equal priority, the UE 104 will select a PRS resource set from each TRP to perform PRS measurement, and perform PRS measurement from each PRS resource set in each TRP, and then return to a TRP to perform additional PRS measurement from a different PRS resource set. Additionally, in the case where the PRS resource sets have equal priority, the UE 104 may select a PRS resource from each PRS resource set under each TRP to perform PRS measurement, and perform PRS measurement from each selected PRS resource in each PRS resource set, and then return to a PRS resource set to perform additional PRS measurement from a different PRS resource. For example, circles and numbers are used to indicate the measurement order, Figure 5DIllustrating equal prioritization based on prioritization of TRPs and PRS resource sets, PRS measurement (1) is performed using PRS resources (RES1) under a first PRS resource set (set 1) and a TRP (TRP 1), followed by PRS measurement (2) using PRS resources (RES 5) under a second PRS resource set (set 3) and a different TRP (TRP 2), followed by revisiting the first TRP (TRP 1). The UE 104 then performs positioning measurements (3) from PRS resources (RES 3) under the first TRP (TRP 1) but from a different PRS resource set (set 2), followed by PRS measurement (4) using PRS resources (RES 7) under a fourth PRS resource set (set 4) under the second TRP (TRP 2). This pattern repeatedly changes the TRP and PRS resource sets to use different PRS resources, thereby performing positioning measurements (5), (6), (7) and (8) using corresponding PRS resources (RES2), (RES 6), (RES 4) and (RES 8).

[0119] Figure 6 Shows that in the explanation positioning session, Figure 1 600 illustrates a signaling flow of various messages sent between components of the wireless communication system 100 depicted in FIG. 600, the positioning session including positioning assistance data prioritization by positioning method as discussed herein. Flowchart 600 illustrates a UE 104, two TRPs 102-1 and 102-2 (which may be collectively referred to as TRPs 102 and may be gNBs), and a location server 602 (which may be, for example, a location server 172, 230a, 230b, or LMF 270). It should be appreciated that although in Figure 6 A single location server 602 is illustrated in FIG. 6 , but multiple location servers or other entities may be used. Figure 6 For example, a first server may receive positioning capabilities and generate and provide assistance data in stages 1, 2, 3, and 4, while a different server or other entity may receive location information and determine the UE location in stages 11, 13, and 14. Although flowchart 600 is discussed with respect to 5G NR wireless access for ease of explanation, similar to Figure 6 The signaling flows involving other types of high frequency networks and base stations will also be readily apparent to one of ordinary skill in the art. In some embodiments, the UE 104 may be configured for UE-based positioning determination or UE-assisted positioning determination. Figure 6The implementation of several different positioning methods that can be used alone or in combination is illustrated. For example, one or more of the DL positioning methods TDOA and AoD can be implemented, or a combined UL and DL positioning method (such as M-RTT) can be implemented. In the signaling flow 600, it is assumed that the UE 104 and the location server 602 communicate using the LPP positioning protocol, although the use of NPP or a combination of LPP and NPP or other future protocols (such as NRPPa) is also possible. In addition, it should be appreciated that the UE 104 may not be transmitted. Figure 6 All the information explained in Figure 6 All messages transmitted between entities in a positioning session may not be shown.

[0120] In phase 1, the location server 602 sends a request positioning capability message to the UE 104, for example, to request the UE 104 for positioning capability.

[0121] In phase 2, UE 104 returns a Provide Positioning Capabilities message to location server 602 to provide the positioning capabilities of UE 104. For example, UE 104 may indicate its capabilities to perform different positioning measurements as well as its capabilities regarding, for example, the maximum number of frequency layers, the maximum number of TRPs, the maximum number of PRS resource sets, and the maximum number of PRS resources.

[0122] In stage 3, the location server 602 may generate positioning assistance data for the UE 104, for example, based at least in part on the positioning capabilities of the UE 104. For example, as discussed above, the positioning assistance data may prioritize one or more of the PRS resource sets and the PRS resources, which may differ based on the positioning method. In some implementations, the positioning assistance data may further prioritize one or more of the frequency layers and the TRP, which may differ based on the positioning method. For example, the positioning assistance data may provide information about the frequency layers, TRPs, PRS resource sets, and PRS resources, such as the measurement order or whether they have equal priority. The positioning assistance data is prioritized and in accordance with a RAT-dependent positioning method (such as TDOA, AoD, or M-RTT).

[0123] In phase 4, the location server 602 may send a provide assistance data message to the UE 104 to provide positioning assistance data to assist the UE 104 in acquiring and measuring the PRS signal, and optionally determining the position from the PRS measurement. The assistance data may include, for example, a common PRS assistance data set, and a separate PRS assistance data set per positioning method, which may index the common PRS assistance data.

[0124] In stage 5, the location server 602 may send a request location information message to the UE 104 to request the UE 104 to measure DL PRS transmissions by the TRP 102, for example, for DL ​​positioning methods such as TDOA or AoD, and in some cases, request the UE 104 to transmit UL PRS (e.g., SRS) for measurement by the TRP in a combined DL and UL positioning method such as M-RTT. The location server 602 may also indicate whether UE-based positioning is requested, whereby the UE 104 determines its own position, or UE-assisted positioning.

[0125] In stage 6, the UE 104 may determine the priority of the PRS signals to be measured based at least on one or more rankings of the information about the PRS resource set or PRS resource, or a combination thereof in the positioning assistance data. In some implementations, the UE 104 may determine the priority of the PRS signals to be measured based on one or more rankings of the information about the frequency layer, TRP, PRS resource set or PRS resource, or a combination thereof in the positioning assistance data.

[0126] In phase 7, TRP 102 transmits the PRS signal.

[0127] In stage 8, UE 104 determines PRS measurements for the PRS received from TRP 102 in stage 7 according to the prioritization for the PRS signals. UE 104 may measure TDOA and AoD, for example.

[0128] In stage 9, UE 104 may transmit a UL PRS signal (eg, SRS), for example, using a multi-RTT positioning method.

[0129] In stage 10, TRP 102 may capture the PRS transmitted by UE 104 in stage 9 and perform desired positioning measurements. Base station 102 may, for example, measure Rx-Tx, TOA, etc., which may be used in the M-RTT positioning method.

[0130] In stage 11, the TRP 102 may send a Provide Location Information message to the location server 602 and include the PRS measurements (and any other measurements) obtained in stage 9 (if performed). In some implementations, for example, where DL and UL based positioning methods are used, the base station may send a Provide Location Information message to the UE 104, as illustrated by the dashed line.

[0131] In stage 12, if UE 104-based positioning was requested in stage 5, UE 104 can determine its position based on the PRS measurements (and any other measurements) obtained in stage 8 and the assistance data received in stage 4, and the provide location information message from the base station in stage 11 (if used).

[0132] At stage 13 , UE 104 may send a Provide Location Information message to location server 602 , which may include the PRS measurements (and any other measurements) obtained at stage 8 and / or the UE location obtained at stage 12 .

[0133] At stage 14, the location server 602 determines the UE location based on any PRS measurements (and any other measurements) received at one or more of stage 13, stage 11, or a combination of stage 13 and stage 11, or may verify the UE location received at stage 13. Alternatively, other entities in the wireless network (e.g., another server) may also be used to determine the UE location based on any PRS measurements.

[0134] Figure 7 A flow chart of an exemplary method 700 performed by a UE in a wireless network for position determination of the UE, such as UE 104 in wireless communication system 100, is shown.

[0135] At block 702, the UE may receive positioning assistance data per positioning method, the positioning assistance data including information about one or more positioning reference signal (PRS) resource sets and one or more PRS resources, e.g., as in Figure 6 At block 704, the UE may determine a priority distinction for the PRS signals to be measured based at least on one or more priority rankings of information about PRS resource sets or PRS resources, or a combination thereof, in the positioning assistance data, or assign equal priority to one or more of the PRS resource sets or PRS resources, or a combination thereof, for example, as in Figure 6 At block 706, the UE may determine a PRS measurement for the PRS signal based at least on the priority differentiation for the PRS signal, for example, as in Figure 6 At block 708, a positioning fix for the UE is determined based on the PRS measurements, for example, as described in stages 7 and 8 of FIG. Figure 6 of stage 12 or 14 discussed above.

[0136] For example, in some implementations, the UE may report measurement information based on these PRS measurements to an entity in the wireless network, where a positioning fix for the UE may be determined by the entity in the wireless network, e.g., as in Figure 6as explained in phases 13 and 14. In some implementations, the positioning lock for the UE can be determined by the UE, e.g., as explained in Figure 6 phase 12.

[0137] In one implementation, the positioning assistance data follows radio access technology (RAT)-related positioning methods. For example, positioning assistance data by positioning method includes separate positioning assistance data for angle of departure (AOD), time difference of arrival (TDOA), and multi-cell round-trip time (M-RTT), e.g., as explained in Figure 6 phase 3.

[0138] In one implementation, positioning assistance data by positioning method can include an index to a common PRS assistance data set, e.g., as explained in Table 1-5.

[0139] In one implementation, for each positioning method, information on one or more PRS resource sets for a transmission point (TRP) in the positioning assistance data lists these PRS resource sets in the order of priority of measurements to be performed by the UE, e.g., as in Figure 6 phase 6 and Figure 5A and 5B as explained. Additionally, in some implementations, the positioning assistance data can further include information on one or more frequency layers and one or more TRPs, and for each positioning method, this information can further list these frequency layers in the order of priority of measurements to be performed by the UE, or list the TRPs within each frequency layer in the order of priority of measurements to be performed by the UE, or a combination thereof.

[0140] In one implementation, for each positioning method, information on one or more PRS resources of a PRS resource set in the positioning assistance data lists these PRS resource sets in the order of priority of measurements to be performed by the UE.

[0141] In one implementation, the positioning assistance data can further include information on one or more frequency layers and one or more transmission points (TRPs), and the UE can further report one or more measurement capabilities by positioning method to an entity in the radio network, e.g., as discussed in Figure 6 phase 2. The information on frequency layers, TRPs, PRS resource sets, and PRS resources in the positioning assistance data can be based on one or more measurement capabilities by positioning method, e.g., as in Figure 6As discussed in stage 3 of . In one example, one or more measurement capabilities of the positioning method indicate a maximum number of PRS resource sets per TRP per frequency layer, and wherein determining the prioritization for PRS measurement includes prioritizing the first PRS resource set listed in the information about the PRS resource set. In one example, one or more measurement capabilities of the positioning method indicate a maximum number of PRS resources per PRS resource set, and wherein determining the prioritization for PRS measurement includes prioritizing the first PRS resource listed in the information about the PRS resource. In one example, one or more measurement capabilities of the positioning method indicate a maximum number of PRS resources across all frequency layers, TRPs, and PRS resource sets, and wherein determining the prioritization for PRS measurement includes one of the following: prioritizing based on frequency layer, then based on TRP, then based on PRS resource set, then based on PRS resource; or prioritizing the first PRS resource set from each TRP, followed by the second PRS resource set from each TRP. In one example, one or more measurement capabilities of a positioning method indicate a maximum number of TRPs across all frequency layers, and wherein determining prioritization for PRS measurements includes: prioritizing a first frequency layer and all TRPs in the first frequency layer over a second frequency layer and all TRPs in the second frequency layer; or prioritizing a first TRP from each frequency layer, followed by a second TRP from each frequency layer. In one example, one or more measurement capabilities of a positioning method indicate a maximum number of PRS resources per frequency layer, and wherein determining prioritization for PRS measurements includes one of: prioritizing based on TRP, then based on a PRS resource set, then based on a PRS resource; or prioritizing a first PRS resource set from each TRP, followed by a second PRS resource set from each TRP.

[0142] Figure 8 A flow chart of an exemplary method 800 for position determination of a UE in a wireless network, performed by a location server in the wireless network, such as UE 104 and location server 172 in wireless communication system 100, is shown.

[0143] At block 802, the location server may receive measurement capabilities per positioning method from a UE, e.g., as in Figure 6 At block 804, positioning assistance data per positioning method is generated, the positioning assistance data including information about positioning reference signal (PRS) resource sets and PRS resources, the information being configured based on the measurement capability per positioning method to provide a priority order of PRS resource sets or PRS resources, or a combination thereof, to be measured by the UE, or indicating equal priority of PRS resource sets or PRS resources, or a combination thereof, to be measured by the UE, for example, as in Figure 6At block 806, positioning assistance data according to the positioning method is transmitted to the UE, for example, as in Figure 6 At block 808, a positioning fix for the UE is determined based on PRS measurements performed by the UE using the priority order, e.g., as in Figure 6 of stage 12 or 14 discussed above.

[0144] In some implementations, the location server may receive measurement information based on the PRS measurements from the UE, wherein a positioning fix for the UE is determined by the location server, for example, as in Figure 6 In some implementations, the positioning fix for the UE may be determined by the UE, for example, as in Figure 6 as discussed in Stage 12 of this document.

[0145] In one implementation, the positioning assistance data is in accordance with a radio access technology (RAT) related positioning method, for example, as in Figure 6 For example, the positioning assistance data by positioning method may be separate positioning assistance data for angle of departure (AOD), time difference of arrival (TDOA), and multi-cell round trip time (M-RTT), for example, as described in Figure 6 as discussed in Phase 3.

[0146] In one implementation, a common PRS assistance data set is transmitted to the UE, wherein the positioning assistance data according to the positioning method includes an index to the common PRS assistance data set, for example, as in Figure 6 Stages 3 and 4 are discussed above.

[0147] In one implementation, for each positioning method, the information about the PRS resource sets in the positioning assistance data lists the PRS resource sets in the order in which the UE will perform measurements, for example, as in Figure 6 Stage 6 and Figure 5A and 5B For example, in some implementations, the positioning assistance data may further include information about frequency layers and transmission points (TRPs), and for each positioning method, the information may further list the frequency layers in a priority order for measurements to be performed by the UE, or list the TRPs within each frequency layer in a priority order for measurements to be performed by the UE, or list a combination thereof.

[0148] In one implementation, for each positioning method, the information about PRS resources in the positioning assistance data lists these PRS resources in the order in which the UE will perform measurements, or these PRS resources have equal priority.

[0149] Fig. 91 and 10. A UE 900 (eg, which may be a UE 900) is shown that can support positioning using prioritized positioning assistance data per positioning method as discussed herein. Figure 1 900) is a schematic block diagram of certain exemplary features of a UE 104 shown in FIG. UE 900 may, for example, include one or more processors 902, memory 904, an external interface such as a wireless transceiver 910 (e.g., a wireless network interface), which may be operably coupled to a non-transitory computer-readable medium 920 and the memory 904 using one or more connections 906 (e.g., a bus, a line, an optical fiber, a link, etc.). UE 900 may further include additional items not shown, such as a user interface by which a user may interface with the UE, which may include, for example, a display, a keypad or other input device (such as a virtual keypad on a display), or a satellite positioning system receiver. In certain example implementations, all or a portion of UE 900 may take the form of a chipset or the like. Wireless transceiver 910 may, for example, include a transmitter 912 capable of transmitting one or more signals on one or more types of wireless communication networks, and a receiver 914 for receiving one or more signals transmitted on the one or more types of wireless communication networks.

[0150] In some embodiments, the UE 900 may include an antenna 911, which may be internal or external. The UE antenna 911 may be used to transmit and / or receive signals processed by the wireless transceiver 910. In some embodiments, the UE antenna 911 may be coupled to the wireless transceiver 910. In some embodiments, measurements of signals received (transmitted) by the UE 900 may be performed at the connection point of the UE antenna 911 and the wireless transceiver 910. For example, the measurement reference point for the received (transmitted) RF signal measurement may be the input (output) terminal of the receiver 914 (transmitter 912) and the output (input) terminal of the UE antenna 911. In a UE 900 having multiple UE antennas 911 or an antenna array, the antenna connector may be considered as a virtual point representing the aggregated output (input) of multiple UE antennas. The UE 900 may receive signals, such as DL PRS, and / or transmit UL PRS or SRS for positioning. Measurements of the signal may be processed by one or more processors 902, and the measurements of the signal may include one or more of: timing measurements (such as RSTD, UE Rx-Tx, TOA, TDOA, AoD, M-RTT, etc.), energy measurements (such as RSRP, quality metrics, speed and / or trajectory measurements), reference TRP, multipath information, line of sight (LOS) or non-line of sight (NLOS) factors, signal-to-interference-plus-noise ratio (SINR), and timestamp.

[0151] The one or more processors 902 may be implemented using a combination of hardware, firmware, and software. For example, the one or more processors 902 may be configured to perform the functions discussed herein by implementing one or more instructions or program codes 908 on a non-transitory computer-readable medium, such as the medium 920 and / or the memory 904. In some embodiments, the one or more processors 902 may represent one or more circuits that may be configured to perform at least a portion of a data signal computing procedure or process related to the operation of the UE 900.

[0152] The medium 920 and / or memory 904 may store instructions or program code 908 containing executable code or software instructions that, when executed by one or more processors 902, cause the one or more processors 902 to operate as a special-purpose computer programmed to perform the techniques disclosed herein. As illustrated in UE 900, the medium 920 and / or memory 904 may include one or more components or modules that may be implemented by one or more processors 902 to perform the methodologies described herein. Although each component or module is illustrated as software executable by one or more processors 902 in the medium 920, it should be understood that each component or module may be stored in the memory 904 or may be dedicated hardware in or outside of the one or more processors 902.

[0153] Several software modules and data tables may reside in the media 920 and / or memory 904 and be utilized by the one or more processors 902 to manage both the communications and functionality described herein. It should be appreciated that the organization of the contents of the media 920 and / or memory 904 as shown in the UE 900 is merely exemplary, and as such, the functionality of the various modules and / or data structures may be combined, separated, and / or configured in different ways depending on the implementation of the UE 900.

[0154] The medium 920 and / or memory 904 may include a capability module 922 that, when implemented by the one or more processors 902 , configures the one or more processors 902 to communicate per-positioning method measurement capabilities to a location server or other entity via the wireless transceiver 910 .

[0155] The medium 920 and / or the memory 904 may include an assistance data module 924, which when implemented by the one or more processors 902 configures the one or more processors 902 to receive positioning assistance data from, for example, a location server via the wireless transceiver 910. The positioning assistance data may include information about one or more frequency layers, one or more TRPs, one or more PRS resource sets, and one or more PRS resources, such as a priority order for measurements or an indication of equal priority. The assistance data may include common PRS assistance data for all positioning methods and assistance data specific to the positioning method, which may index the common PRS assistance data.

[0156] The medium 920 and / or the memory 904 may include a prioritization module 926, which when implemented by the one or more processors 902 configures the one or more processors 902 to prioritize, for example, PRS resource sets or PRS resources, or combinations thereof, for PRS measurements, based on information included in the positioning assistance and the positioning method to be performed, or based on information encoded in the medium 902 or the memory 904 indicating that equal priority is to be given to one or more of the PRS resource sets or PRS resources, or combinations thereof. The one or more processors 902 may be further configured to prioritize frequency layers or TRPs, or combinations thereof. For example, the prioritization may be indicated by listing the PRS resource sets or PRS resources in order of priority for measurement, or in some implementations listing the frequency layers or TRPs, or combinations thereof.

[0157] The medium 920 and / or the memory 904 may include a PRS measurement module 928, which, when implemented by the one or more processors 902, configures the one or more processors 902 to receive DL PRS signals from one or more TRPs via the wireless transceiver 910 and determine PRS measurements based at least on the prioritization of the PRS signals. For example, the one or more processors 902 may be configured to perform DL positioning measurements for one or more positioning methods based on the received DL PRS, perform UL positioning measurements for one or more positioning methods based on the received DL PRS, or perform DL and UL positioning measurements for one or more positioning methods based on the received DL PRS and the transmitted UL PRS. Multiple positioning measurements may be performed, for example, the same type of positioning measurements may be performed at different times and / or different types of positioning measurements may be performed at the same time or at different times. The positioning measurements may be used for one or more positioning methods, such as TDOA, AoD, multi-RTT, hybrid positioning methods, etc. As an example, one or more processors 902 may be configured for positioning measurements including one or more of: timing measurements (such as RSTD, UE Rx-Tx, TOA, etc.), energy measurements (such as RSRP), quality metrics, speed and / or trajectory measurements, reference TRP, multipath information, LOS / NLOS factors, SINR, and timestamps. In some implementations, one or more processors 902 may be further configured to estimate the positioning of UE 900 using the positioning measurements and the position of the base station (e.g., received in the assistance data) in a UE-based positioning process.

[0158] The medium 920 and / or the memory 904 may include a UL PRS transmission module 930 , which when implemented by the one or more processors 902 configures the one or more processors 902 to transmit a UL PRS or SRS for positioning via the wireless transceiver 910 .

[0159] The medium 920 and / or the memory 904 may include a positioning information receiving module 932, which, when implemented by one or more processors 902, configures the one or more processors 902 to receive positioning information related to measurements of the transmitted UL PRS or SRS for positioning from the TRP via the wireless transceiver 910.

[0160] The medium 920 and / or the memory 904 may include a positioning determination module 934, which, when implemented by one or more processors 902, configures the one or more processors 902 to determine a positioning estimate based on positioning measurements and positioning information received from the TRP (if any), and information provided in the auxiliary data (such as the location of the TRP).

[0161] The medium 920 and / or memory 904 may include a transmit reporting element module 936 that, when implemented by the one or more processors 902 , configures the one or more processors 902 to transmit the PRS measurements and / or the determined positioning estimate to a location server via the wireless transceiver 910 .

[0162] The methodologies described herein may be implemented by various means depending on the application. For example, these methodologies may be implemented in hardware, firmware, software, or any combination thereof. For hardware implementation, the one or more processors 902 may be implemented in one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), processors, controllers, microcontrollers, microprocessors, electronic devices, other electronic units designed to perform the functions described herein, or combinations thereof.

[0163] For firmware and / or software implementations, these methodologies can be implemented with modules (e.g., procedures, functions, etc.) that perform the functions described herein. Any machine-readable medium that tangibly embodies instructions can be used to implement the methodologies described herein. For example, software code can be stored in a non-transient computer-readable medium 920 or memory 904 connected to one or more processors 902 and executed by the one or more processors 902. The memory can be implemented within one or more processors or outside of one or more processors. As used herein, the term "memory" refers to any type of long-term, short-term, volatile, non-volatile, or other memory, and is not limited to any particular type of memory or number of memories, or the type of medium on which the memory is stored.

[0164] If implemented in firmware and / or software, the functionality may be stored as one or more instructions or program code 908 on a non-transitory computer-readable medium, such as the medium 920 and / or the memory 904. Examples include computer-readable media encoded with data structures and computer-readable media encoded with a computer program 908. For example, a non-transitory computer-readable medium including program code 908 stored thereon may include program code 908 to support positioning using prioritization of auxiliary data by method in a manner consistent with the disclosed embodiments. The non-transitory computer-readable medium 920 includes physical computer storage media. The storage media may be any available media that can be accessed by a computer. By way of example and not limitation, such non-transitory computer-readable media may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage, or other magnetic storage devices, or any other medium that can be used to store desired program code 908 in the form of instructions or data structures and can be accessed by a computer; as used herein, disk and disc include compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disk and Blu-ray disc, where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above should also be included within the scope of computer-readable media.

[0165] In addition to being stored on the computer-readable medium 920, instructions and / or data may also be provided as signals on a transmission medium included in the communication device. For example, the communication device may include a wireless transceiver 910 with signals indicating instructions and data. These instructions and data are configured to cause one or more processors to implement the functions outlined in the claims. That is, the communication device includes a transmission medium with signals indicating information for performing the disclosed functions.

[0166] The memory 904 may represent any data storage mechanism. The memory 904 may include, for example, a main memory and / or a secondary memory. The main memory may include, for example, a random access memory, a read-only memory, etc. Although illustrated as being separate from the one or more processors 902 in this example, it should be understood that all or part of the main memory may be located within or otherwise co-located / coupled with the one or more processors 902. The secondary memory may include, for example, a memory of the same or similar type as the main memory and / or one or more data storage devices or systems (such as, for example, a disk drive, an optical disk drive, a tape drive, a solid-state memory drive, etc.).

[0167] In some implementations, the secondary storage may be operatively received or otherwise configurable to be coupled to the non-transitory computer-readable medium 920. As such, in some example implementations, the methods and / or apparatus presented herein may take the form of all or a portion of a computer-readable medium 920 that may include computer-implementable code 908 stored thereon, which when executed by one or more processors 902 may be operatively implemented to perform all or a portion of the example operations as described herein. The computer-readable medium 920 may be part of the memory 904.

[0168] In one implementation, a UE, such as UE 900, may be configured to support positioning determination and may include means for receiving positioning assistance data per positioning method, the positioning assistance data including information about one or more positioning reference signal (PRS) resource sets and one or more PRS resources, which means may be, for example, a wireless transceiver 910 and one or more processors 902 having dedicated hardware or implementing executable code or software instructions in memory 904 and / or medium 920, such as an assistance data module 924. Means for determining a priority distinction for PRS signals to be measured based on at least one or more priority rankings of information about PRS resource sets or PRS resources, or a combination thereof, in the positioning assistance data, or assigning equal priority to one or more of the PRS resource sets or PRS resources, or a combination thereof, which means may be, for example, one or more processors 902 having dedicated hardware or implementing executable code or software instructions in memory 904 and / or medium 920, such as a priority distinction module 926. Means for determining PRS measurements of PRS signals based at least on prioritization of the PRS signals, which may be, for example, a wireless transceiver 910 and one or more processors 902 having dedicated hardware or implementing executable code or software instructions in memory 904 and / or media 920, such as a PRS measurement module 928. Means for reporting measurement information or positioning fix information based on PRS measurements to an entity in a wireless network, which may be, for example, a wireless transceiver 910 and one or more processors 902 having dedicated hardware or implementing executable code or software instructions in memory 904 and / or media 920, such as a transmission reporting module 936.

[0169] In one implementation, the positioning assistance data may further include information about one or more frequency layers and one or more transmission points (TRPs), and the UE may further include a device for reporting one or more measurement capabilities according to the positioning method to an entity in the wireless network, and the information about the frequency layer, TRP, PRS resource set and PRS resource in the positioning assistance data is configured based on one or more measurement capabilities according to the positioning method, and the device can be, for example, a wireless transceiver 910 and one or more processors 902 having dedicated hardware or implementing executable code or software instructions (such as a capability module 922) in the memory 904 and / or the medium 920.

[0170] Fig.10 A schematic block diagram illustrating certain exemplary features of a location server 1000 in a wireless network that can support positioning using prioritized positioning assistance data per positioning method as discussed herein is shown. The location server 1000 may be, for example, the location server 172, which may be, for example, Figure 1 , 2A and the location server 230a, 230b or LMF 270 in 2B. The location server 1000 may, for example, include one or more processors 1002, a memory 1004, and an external interface, the external interface may include an external interface 1010 for communication (e.g., a wired or wireless network interface to other network entities and / or a core network), which may be operably coupled to a non-transitory computer-readable medium 1020 and the memory 1004 using one or more connections 1006 (e.g., a bus, a line, an optical fiber, a link, etc.). In some implementations, the location server 1000 may further include additional items not shown, such as a user interface through which a user can interface with a network entity, the user interface may include, for example, a display, a keypad, or other input device (such as a virtual keypad on a display). In certain example implementations, all or a portion of the location server 1000 may take the form of a chipset, etc. The external interface 1010 may be a processor capable of connecting to other base stations (e.g., in a RAN) or network entities (such as Figure 1 A wired or wireless interface to the location server 172) shown in FIG.

[0171] The one or more processors 1002 may be implemented using a combination of hardware, firmware, and software. For example, the one or more processors 1002 may be configured to perform the functions discussed herein by implementing one or more instructions or program code 1008 on a non-transitory computer-readable medium, such as the medium 1020 and / or the memory 1004. In some embodiments, the one or more processors 1002 may represent one or more circuits that may be configured to perform at least a portion of a data signal computing procedure or process related to the operation of the location server 1000.

[0172] The medium 1020 and / or memory 1004 may store instructions or program code 1008 containing executable code or software instructions that, when executed by one or more processors 1002, cause the one or more processors 1002 to operate as a special-purpose computer programmed to perform the techniques disclosed herein. As illustrated in the location server 1000, the medium 1020 and / or memory 1004 may include one or more components or modules that may be implemented by one or more processors 1002 to perform the methodologies described herein. Although the components or modules are illustrated as software in the medium 1020 that may be executed by one or more processors 1002, it should be understood that the components or modules may be stored in the memory 1004 or may be special-purpose hardware in or outside of the one or more processors 1002.

[0173] Several software modules and data tables may reside in the medium 1020 and / or memory 1004 and be utilized by the one or more processors 1002 to manage both the communications and functionality described herein. It should be appreciated that the organization of the contents of the medium 1020 and / or memory 1004 as shown in the location server 1000 is merely exemplary, and as such, the functionality of the various modules and / or data structures may be combined, separated, and / or configured in different ways depending on the implementation of the location server 1000.

[0174] The medium 1020 and / or the memory 1004 may include a capability module 1022 , which when implemented by the one or more processors 1002 configures the one or more processors 1002 to receive the per-positioning method measurement capability of the UE via the external interface 1010 .

[0175] The medium 1020 and / or the memory 1004 may include an assistance data module 1024, which, when implemented by one or more processors 1002, configures the one or more processors 1002 to generate positioning assistance data at least in part based on the capabilities of the UE. The positioning assistance data may include information about one or more frequency layers, one or more TRPs, one or more PRS resource sets, and one or more PRS resources. The positioning assistance data may be based on the measurement capabilities per positioning method and may provide a prioritization order of the PRS resource sets or PRS resources, or a combination thereof, to be measured by the UE, or indicate an equal prioritization of the PRS resource sets or PRS resources, or a combination thereof, to be measured by the UE. In some implementations, a prioritization of the frequency layer or TRP, or a combination thereof, may additionally be provided. For example, the prioritization discrimination may be indicated by listing the PRS resource sets or PRS resources in the order of measurement priority, or in some implementations, listing the frequency layer or TRP, or a combination thereof. The assistance data may include common PRS assistance data for all positioning methods and assistance data specific to the positioning method, which may index the common PRS assistance data.

[0176] The medium 1020 and / or the memory 1004 may include a transmission AD module 1026, which, when implemented by one or more processors 1002, configures the one or more processors 1002 to transmit the positioning assistance data to the UE 104 via the external interface 1010.

[0177] The medium 1020 and / or the memory 1004 may include a position information receiving module 1028, which, when implemented by one or more processors 1002, configures the one or more processors 1002 to receive, via the external interface 1010, position information related to PRS measurements for DL PRS (measured using this prioritization order) and UL PRS or SRS (if used) for positioning, and / or positioning estimates determined by the UE, from the UE 104 and / or the TRP.

[0178] The medium 1020 and / or the memory 1004 may include a positioning determination module 1030, which, when implemented by one or more processors 1002, configures the one or more processors 1002 to determine a positioning estimate based on the positioning measurements and the position information (if any) received from the UE and the TRP.

[0179] The methodologies described herein may be implemented by various means depending on the application. For example, these methodologies may be implemented in hardware, firmware, software, or any combination thereof. For hardware implementation, the one or more processors 1002 may be implemented in one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), processors, controllers, microcontrollers, microprocessors, electronic devices, other electronic units designed to perform the functions described herein, or combinations thereof.

[0180] For firmware and / or software implementations, these methodologies can be implemented with modules (e.g., procedures, functions, etc.) that perform the functions described herein. Any machine-readable medium that tangibly embodies instructions can be used to implement the methodologies described herein. For example, software code can be stored in a non-transient computer-readable medium 1020 or memory 1004 connected to one or more processors 1002 and executed by the one or more processors 1002. The memory can be implemented within one or more processors or outside of one or more processors. As used herein, the term "memory" refers to any type of long-term, short-term, volatile, non-volatile, or other memory, and is not limited to any particular type of memory or number of memories, or the type of medium on which the memory is stored.

[0181] If implemented in firmware and / or software, the functionality may be stored as one or more instructions or program code 1008 on a non-transitory computer-readable medium, such as the medium 1020 and / or the memory 1004. Examples include computer-readable media encoded with data structures and computer-readable media encoded with a computer program 1008. For example, a non-transitory computer-readable medium including program code 1008 stored thereon may include program code 1008 to support positioning using prioritization of auxiliary data by method in a manner consistent with the disclosed embodiments. The non-transitory computer-readable medium 1020 includes physical computer storage media. The storage media may be any available media that can be accessed by a computer. By way of example and not limitation, such non-transitory computer-readable media may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage, or other magnetic storage devices, or any other medium that can be used to store desired program code 1008 in the form of instructions or data structures and can be accessed by a computer; as used herein, disk and disc include compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disk and Blu-ray disc, where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above should also be included within the scope of computer-readable media.

[0182] In addition to being stored on the computer-readable medium 1020, instructions and / or data may also be provided as signals on a transmission medium included in the communication device. For example, the communication device may include an external interface 1010 with signals indicating instructions and data. These instructions and data are configured to cause one or more processors to implement the functions outlined in the claims. That is, the communication device includes a transmission medium with signals indicating information for performing the disclosed functions.

[0183] The memory 1004 may represent any data storage mechanism. The memory 1004 may include, for example, a main memory and / or a secondary memory. The main memory may include, for example, a random access memory, a read-only memory, etc. Although illustrated as being separate from the one or more processors 1002 in this example, it should be understood that all or part of the main memory may be located within the one or more processors 1002 or otherwise co-located / coupled with the one or more processors 1002. The secondary memory may include, for example, a memory of the same or similar type as the main memory and / or one or more data storage devices or systems (such as, for example, a disk drive, an optical disk drive, a tape drive, a solid-state memory drive, etc.).

[0184] In some implementations, the secondary storage may be operatively received or otherwise configurable to be coupled to the non-transitory computer-readable medium 1020. As such, in some example implementations, the methods and / or apparatus presented herein may take the form of all or a portion of a computer-readable medium 1020 that may include computer-implementable code 1008 stored thereon, which when executed by one or more processors 1002 may be operatively implemented to perform all or a portion of the example operations as described herein. The computer-readable medium 1020 may be part of the memory 1004.

[0185] In one implementation, a location server, such as location server 1000, may be configured to support positioning determination of a user equipment (UE), and may include means for receiving per-positioning method measurement capabilities from the UE, which means may be, for example, an external interface 1010 and one or more processors 1002 having dedicated hardware or implementing executable code or software instructions in memory 1004 and / or medium 1020, such as capability module 1022. Means for generating per-positioning method positioning assistance data, the positioning assistance data including information about positioning reference signal (PRS) resource sets and PRS resources, the information configured based on the per-positioning method measurement capabilities to provide a priority order of PRS resource sets or PRS resources, or a combination thereof, to be measured by the UE, or indicating equal priority of PRS resource sets or PRS resources, or a combination thereof, to be measured by the UE, which means may be, for example, one or more processors 1002 having dedicated hardware or implementing executable code or software instructions in memory 1004 and / or medium 1020, such as assistance data module 1024. The device for transmitting positioning assistance data according to the positioning method to the UE can be, for example, an external interface 1010 and one or more processors 1002 having dedicated hardware or implementing executable code or software instructions in the memory 1004 and / or the medium 1020 (such as a transmitting AD module 1026). The device for receiving measurement information based on PRS measurement from the UE, wherein the positioning fix for the UE is determined by the location server, can be, for example, an external interface 1010 and one or more processors 1002 having dedicated hardware or implementing executable code or software instructions in the memory 1004 and / or the medium 1020 (such as a location information receiving module 1028 and a positioning determination module 1030).

[0186] Reference throughout this specification to "one example," "an example," "some examples," or "exemplary implementations" means that the particular features, structures, or characteristics described in conjunction with the features and / or examples may be included in at least one feature and / or example of the claimed subject matter. Thus, the phrases "in one example," "an example," "some examples," or "in some implementations," or other similar phrases, appearing throughout the specification, do not necessarily all refer to the same features, examples, and / or limitations. Furthermore, these particular features, structures, or characteristics may be combined in one or more examples and / or features.

[0187] Some parts of the detailed description included herein are presented in the form of algorithms or symbolic representations of operations on binary digital signals stored in the memory of a specific device or a dedicated computing device or platform. In the context of this specific specification, the term specific device, etc. includes a general-purpose computer that performs specific operations according to instructions from program software once programmed. Algorithmic descriptions or symbolic representations are examples of techniques used by ordinary technicians in signal processing or related fields to convey the essence of their work to other technicians in the field. The algorithm here is generally considered to be a self-consistent sequence of operations or similar signal processing that leads to a desired result. In this context, operations or processing involve physical manipulation of physical quantities. Typically, but not necessarily, such quantities can take the form of electrical or magnetic signals that can be stored, transferred, combined, compared or otherwise manipulated. Mainly for reasons of common use, it has proven to be convenient sometimes to refer to such signals as bits, data, values, elements, code elements, characters, items, numbers, numerical values, etc. However, it should be understood that all of these or similar terms are associated with appropriate physical quantities and are merely convenient labels. Unless specifically stated otherwise, as is apparent from the discussion herein, it should be appreciated that throughout this specification, discussions utilizing terms such as "processing," "computing," "calculating," "determining," etc. refer to actions or processes of a specific apparatus such as a special purpose computer, special purpose computing equipment, or similar special purpose electronic computing device. In the context of this specification, therefore, a special purpose computer or similar special purpose electronic computing device is capable of manipulating or transforming signals that are typically represented as physical electronic or magnetic quantities within a memory, register, or other information storage device, transmission device, or display device of the special purpose computer or similar special purpose electronic computing device.

[0188] In the above detailed description, numerous specific details are set forth to provide a thorough understanding of the claimed subject matter. However, those skilled in the art will appreciate that the claimed subject matter may be practiced without these specific details. In other instances, methods and devices known to those of ordinary skill in the art are not described in detail to avoid obscuring the claimed subject matter.

[0189] As used herein, the terms "and," "or," and "and / or" may include various meanings that are also intended to depend, at least in part, on the context in which such terms are used. In general, "or," if used in connection with a list, such as A, B, or C, is intended to mean A, B, and C (where used in an inclusive sense) as well as A, B, or C (where used in an exclusive sense). Additionally, the terms "one or more," as used herein, may be used to describe any feature, structure, or characteristic in the singular, or may be used to describe a plurality of features, structures, or characteristics, or some other combination thereof. It should be noted, however, that this is merely an illustrative example, and claimed subject matter is not limited to this example.

[0190] While what is presently considered to be example features has been illustrated and described, it will be appreciated by those skilled in the art that various other modifications may be made, and equivalents may be substituted, without departing from the claimed subject matter. Additionally, many modifications may be made to adapt a particular scenario to the teachings of the claimed subject matter without departing from the central concept described herein.

[0191] Various implementation examples are described in the following numbered clauses.

[0192] 1. A method for determining a position of a user equipment (UE) in a wireless network, comprising:

[0193] receiving positioning assistance data according to a positioning method, the positioning assistance data comprising information about one or more positioning reference signal (PRS) resource sets and one or more PRS resources;

[0194] Determining a priority distinction for the PRS signals to be measured based at least on one or more priority rankings of information about PRS resource sets or PRS resources, or a combination thereof, in the positioning assistance data, or assigning equal priority to one or more of the PRS resource sets or PRS resources, or a combination thereof; and

[0195] determining a PRS measurement for the PRS signal based at least on the prioritization of the PRS signal;

[0196] The positioning lock for the UE is determined based on the PRS measurement.

[0197] 2. The method of clause 1, further comprising: reporting measurement information based on the PRS measurement to an entity in the wireless network, wherein the positioning fix for the UE is determined by the entity in the wireless network.

[0198] 3. The method of clause 1, wherein a position fix for the UE is determined by the UE.

[0199] 4. A method as described in any of clauses 1-3, wherein the positioning assistance data is in accordance with a Radio Access Technology (RAT) related positioning method.

[0200] 5. A method as described in any of clauses 1-4, wherein the positioning assistance data per positioning method includes separate positioning assistance data for angle of departure (AOD), time difference of arrival (TDOA) and multi-cell round trip time (M-RTT).

[0201] 6. A method as described in any of clauses 1-5, wherein the positioning assistance data per positioning method comprises an index to a common PRS assistance data set.

[0202] 7. A method as described in any of clauses 1-6, wherein for each positioning method, the information on one or more PRS resource sets of a transmission point (TRP) in the positioning assistance data lists the PRS resource sets in a priority order for which measurements are to be performed by the UE.

[0203] 8. A method as described in clause 7, wherein the positioning assistance data further includes information about one or more frequency layers and one or more TRPs, and wherein for each positioning method, the information further lists the frequency layers in the order of priority in which measurements are to be performed by the UE, or lists the TRPs within each frequency layer in the order of priority in which measurements are to be performed by the UE, or lists a combination thereof.

[0204] 9. A method as described in any of clauses 1-8, wherein for each positioning method, the information on one or more PRS resources of the PRS resource set in the positioning assistance data lists the PRS resources in a priority order for which measurements are to be performed by the UE.

[0205] 10. A method as described in any of clauses 1 to 9, wherein the positioning assistance data further includes information about one or more frequency layers and one or more transmission points (TRPs), the method further comprising:

[0206] reporting one or more measurement capabilities per positioning method to an entity in the wireless network;

[0207] The information about frequency layers, TRPs, PRS resource sets and PRS resources in the positioning assistance data is configured based on one or more measurement capabilities of the positioning method.

[0208] 11. The method of clause 10, wherein one or more measurement capabilities of the positioning method indicate a maximum number of PRS resource sets per TRP per frequency layer, and wherein determining the priority for PRS measurements comprises prioritizing a first PRS resource set listed in the information about the PRS resource sets.

[0209] 12. The method of clause 10, wherein one or more measurement capabilities of the positioning method indicate a maximum number of PRS resources per PRS resource set, and wherein determining the prioritization for PRS measurements comprises prioritizing a first PRS resource listed in the information about the PRS resources.

[0210] 13. A method as described in clause 10, wherein one or more measurement capabilities of the positioning method indicate a maximum number of PRS resources across all frequency layers, TRPs, and PRS resource sets, and wherein determining prioritization for PRS measurements includes one of: prioritizing based on frequency layer, then based on TRP, then based on PRS resource set, then based on PRS resource; or prioritizing a first PRS resource set from each TRP, followed by a second PRS resource set from each TRP.

[0211] 14. A method as described in clause 10, wherein one or more measurement capabilities of the positioning method indicate a maximum number of TRPs across all frequency layers, and wherein determining priority for PRS measurements includes: prioritizing a first frequency layer and all TRPs in the first frequency layer over a second frequency layer and all TRPs in the second frequency layer; or prioritizing a first TRP from each frequency layer followed by a second TRP from each frequency layer.

[0212] 15. A method as described in clause 10, wherein one or more measurement capabilities of the positioning method indicate a maximum number of PRS resources per frequency layer, and wherein determining priority for PRS measurements includes one of the following: prioritizing based on TRP, then based on PRS resource set, and then based on PRS resource; or prioritizing a first PRS resource set from each TRP, followed by a second PRS resource set from each TRP.

[0213] 16. A user equipment (UE) configured to support positioning determination in a wireless network, comprising:

[0214] a wireless transceiver configured to communicate wirelessly in the wireless network;

[0215] at least one memory;

[0216] at least one processor coupled to the wireless transceiver and the at least one memory, wherein the at least one processor is configured to:

[0217] receiving positioning assistance data according to a positioning method, the positioning assistance data comprising information about one or more positioning reference signal (PRS) resource sets and one or more PRS resources;

[0218] Determining a priority distinction for the PRS signals to be measured based at least on one or more priority rankings of information about PRS resource sets or PRS resources, or a combination thereof, in the positioning assistance data, or assigning equal priority to one or more of the PRS resource sets or PRS resources, or a combination thereof; and

[0219] determining a PRS measurement for the PRS signal based at least on the prioritization of the PRS signal;

[0220] The positioning lock for the UE is determined based on the PRS measurement.

[0221] 17. The UE of clause 16, wherein the at least one processor is further configured to: report measurement information based on the PRS measurement to an entity in the wireless network, wherein a positioning fix for the UE is determined by the entity in the wireless network.

[0222] 18. A UE as described in clause 16, wherein a position fix for the UE is determined by the UE.

[0223] 19. A UE as claimed in any of clauses 16-18, wherein the positioning assistance data is in accordance with a Radio Access Technology (RAT) dependent positioning method.

[0224] 20. A UE as claimed in any of clauses 16-19, wherein the positioning assistance data per positioning method comprises separate positioning assistance data for angle of departure (AOD), time difference of arrival (TDOA) and multi-cell round trip time (M-RTT).

[0225] 21. A UE as claimed in any of clauses 16-20, wherein the per-positioning method positioning assistance data comprises an index to a common PRS assistance data set.

[0226] 22. A UE as claimed in any of clauses 16-21, wherein for each positioning method, the information on one or more PRS resource sets of a transmission point (TRP) in the positioning assistance data lists the PRS resource sets in a priority order for which measurements are to be performed by the UE.

[0227] 23. A UE as described in clause 22, wherein the positioning assistance data further includes information about one or more frequency layers and one or more TRPs, and wherein for each positioning method, the information further lists the frequency layers in the order of priority in which measurements are to be performed by the UE, or lists the TRPs within each frequency layer in the order of priority in which measurements are to be performed by the UE, or lists a combination thereof.

[0228] 24. A UE as claimed in any of clauses 16-23, wherein for each positioning method, the information on one or more PRS resources of a PRS resource set in the positioning assistance data lists the PRS resources in a priority order for which measurements are to be performed by the UE.

[0229] 25. A UE as claimed in any of clauses 16 to 24, wherein the positioning assistance data further comprises information about one or more frequency layers and one or more transmission points (TRPs), and wherein the at least one processor is further configured to:

[0230] reporting one or more measurement capabilities per positioning method to an entity in the wireless network;

[0231] The information about frequency layers, TRPs, PRS resource sets and PRS resources in the positioning assistance data is configured based on one or more measurement capabilities of the positioning method.

[0232] 26. A UE as described in clause 25, wherein one or more measurement capabilities of the positioning method indicate a maximum number of PRS resource sets per TRP per frequency layer, and wherein determining the priority differentiation for PRS measurements includes prioritizing a first PRS resource set listed in the information about the PRS resource sets.

[0233] 27. The UE of clause 25, wherein the one or more measurement capabilities per positioning method indicate a maximum number of PRS resources per PRS resource set, and wherein determining the prioritization for PRS measurement comprises prioritizing a first PRS resource listed in the information about the PRS resources.

[0234] 28. A UE as described in clause 25, wherein one or more measurement capabilities of the positioning method indicate a maximum number of PRS resources across all frequency layers, TRPs and PRS resource sets, and wherein determining prioritization for PRS measurements includes one of: prioritizing based on frequency layer, then based on TRP, then based on PRS resource set, then based on PRS resource; or prioritizing a first PRS resource set from each TRP, followed by a second PRS resource set from each TRP.

[0235] 29. A UE as described in clause 25, wherein one or more measurement capabilities of the positioning method indicate a maximum number of TRPs across all frequency layers, and wherein determining priority for PRS measurements includes: prioritizing a first frequency layer and all TRPs in the first frequency layer over a second frequency layer and all TRPs in the second frequency layer; or prioritizing a first TRP from each frequency layer followed by a second TRP from each frequency layer.

[0236] 30. A UE as described in clause 25, wherein one or more measurement capabilities of the positioning method indicate a maximum number of PRS resources per frequency layer, and wherein determining prioritization for PRS measurements includes one of: prioritizing based on TRP, then based on PRS resource set, then based on PRS resource; or prioritizing a first PRS resource set from each TRP, followed by a second PRS resource set from each TRP.

[0237] 31. A user equipment (UE) configured to support positioning determination in a wireless network, comprising:

[0238] means for receiving positioning assistance data per positioning method, the positioning assistance data comprising information about one or more positioning reference signal (PRS) resource sets and one or more PRS resources;

[0239] means for determining a prioritization for PRS signals to be measured based at least on one or more priority rankings of information about PRS resource sets or PRS resources, or a combination thereof, in the positioning assistance data, or assigning equal priority to one or more of the PRS resource sets or PRS resources, or a combination thereof; and

[0240] means for determining a PRS measurement for the PRS signal based at least on the prioritization for the PRS signal;

[0241] The positioning lock for the UE is determined based on the PRS measurement.

[0242] 32. The UE of clause 31, further comprising: means for reporting measurement information based on the PRS measurement to an entity in the wireless network, wherein a positioning fix for the UE is determined by the entity in the wireless network.

[0243] 33. The UE of clause 31, wherein a position fix for the UE is determined by the UE.

[0244] 34. A UE as described in any of clauses 31-33, wherein the positioning assistance data is in accordance with a Radio Access Technology (RAT) related positioning method.

[0245] 35. A UE as described in any of clauses 31-34, wherein the positioning assistance data per positioning method includes separate positioning assistance data for angle of departure (AOD), time difference of arrival (TDOA) and multi-cell round trip time (M-RTT).

[0246] 36. The UE of any of clauses 31-35, wherein the per-positioning method positioning assistance data comprises an index to a common PRS assistance data set.

[0247] 37. A UE as claimed in any of clauses 31-36, wherein for each positioning method, the information on one or more PRS resource sets of a transmission point (TRP) in the positioning assistance data lists the PRS resource sets in a priority order for which measurements are to be performed by the UE.

[0248] 38. A UE as described in clause 37, wherein the positioning assistance data further includes information about one or more frequency layers and one or more TRPs, and wherein for each positioning method, the information further lists the frequency layers in the order of priority in which measurements are to be performed by the UE, or lists the TRPs within each frequency layer in the order of priority in which measurements are to be performed by the UE, or lists a combination thereof.

[0249] 39. A UE as claimed in any of clauses 31-38, wherein for each positioning method, the information on one or more PRS resources of a PRS resource set in the positioning assistance data lists the PRS resources in a priority order for which measurements are to be performed by the UE.

[0250] 40. A UE as claimed in any of clauses 31 to 39, wherein the positioning assistance data further comprises information on one or more frequency layers and one or more transmission points (TRPs), the UE further comprising:

[0251] means for reporting one or more measurement capabilities per positioning method to an entity in the wireless network;

[0252] The information about frequency layers, TRPs, PRS resource sets and PRS resources in the positioning assistance data is configured based on one or more measurement capabilities of the positioning method.

[0253] 41. A UE as described in clause 40, wherein one or more measurement capabilities of the positioning method indicate a maximum number of PRS resource sets per TRP per frequency layer, and wherein determining the priority differentiation for PRS measurements includes prioritizing a first PRS resource set listed in the information about the PRS resource sets.

[0254] 42. The UE of clause 40, wherein the one or more measurement capabilities per positioning method indicate a maximum number of PRS resources per PRS resource set, and wherein determining the prioritization for PRS measurements comprises prioritizing a first PRS resource listed in the information about the PRS resources.

[0255] 43. A UE as described in clause 40, wherein one or more measurement capabilities of the positioning method indicate a maximum number of PRS resources across all frequency layers, TRPs and PRS resource sets, and wherein determining prioritization for PRS measurements includes one of: prioritizing based on frequency layer, then based on TRP, then based on PRS resource set, then based on PRS resource; or prioritizing a first PRS resource set from each TRP, followed by a second PRS resource set from each TRP.

[0256] 44. A UE as described in clause 40, wherein one or more measurement capabilities of the positioning method indicate a maximum number of TRPs across all frequency layers, and wherein determining priority for PRS measurements includes: prioritizing a first frequency layer and all TRPs in the first frequency layer over a second frequency layer and all TRPs in the second frequency layer; or prioritizing a first TRP from each frequency layer followed by a second TRP from each frequency layer.

[0257] 45. A UE as described in clause 40, wherein one or more measurement capabilities of the positioning method indicate a maximum number of PRS resources per frequency layer, and wherein determining prioritization for PRS measurements includes one of: prioritizing based on TRP, then based on PRS resource set, then based on PRS resource; or prioritizing a first PRS resource set from each TRP, followed by a second PRS resource set from each TRP.

[0258] 46. ​​A non-transitory storage medium comprising program code stored thereon, the program code being operable to configure at least one processor in a user equipment (UE) in a wireless network, the UE being configured to support positioning determination of the UE, the non-transitory storage medium comprising:

[0259] program code for receiving positioning assistance data per positioning method, the positioning assistance data comprising information regarding one or more positioning reference signal (PRS) resource sets and one or more PRS resources;

[0260] Program code for determining a priority distinction for PRS signals to be measured based at least on one or more priority rankings of information about PRS resource sets or PRS resources, or a combination thereof, in the positioning assistance data, or assigning equal priority to one or more of the PRS resource sets or PRS resources, or a combination thereof; and

[0261] program code for determining a PRS measurement for a PRS signal based at least on a prioritization of the PRS signal;

[0262] The positioning lock for the UE is determined based on the PRS measurement.

[0263] 47. The non-transitory storage medium of clause 46, further comprising: program code for reporting measurement information based on PRS measurements to an entity in the wireless network, wherein a positioning fix for the UE is determined by the entity in the wireless network.

[0264] 48. The non-transitory storage medium of clause 46, wherein the location fix for the UE is determined by the UE.

[0265] 49. The non-transitory storage medium of any of clauses 46-48, wherein the positioning assistance data is in accordance with a Radio Access Technology (RAT) dependent positioning method.

[0266] 50. The non-transitory storage medium of any of clauses 46-49, wherein the positioning assistance data per positioning method comprises separate positioning assistance data for angle of departure (AOD), time difference of arrival (TDOA), and multi-cell round trip time (M-RTT).

[0267] 51. The non-transitory storage medium of any of clauses 46-50, wherein the per-positioning method positioning assistance data comprises an index to a common PRS assistance data set.

[0268] 52. A non-transitory storage medium as described in any of clauses 46-51, wherein for each positioning method, the information about one or more PRS resource sets of a transmission point (TRP) in the positioning assistance data lists the PRS resource sets in a priority order for which measurements are to be performed by the UE.

[0269] 53. A non-volatile storage medium as described in clause 52, wherein the positioning assistance data further includes information about one or more frequency layers and one or more TRPs, and wherein for each positioning method, the information further lists the frequency layers in the order of priority in which measurements are to be performed by the UE, or lists the TRPs within each frequency layer in the order of priority in which measurements are to be performed by the UE, or lists a combination thereof.

[0270] 54. The non-transitory storage medium of any of clauses 46-53, wherein for each positioning method, the information on one or more PRS resources of the PRS resource set in the positioning assistance data lists the PRS resources in a priority order for which measurements are to be performed by the UE.

[0271] 55. The non-transitory storage medium of any of clauses 46-54, wherein the positioning assistance data further comprises information about one or more frequency layers and one or more transmission points (TRPs), the non-transitory storage medium further comprising:

[0272] program code for reporting one or more measurement capabilities per positioning method to an entity in the wireless network;

[0273] The information about frequency layers, TRPs, PRS resource sets and PRS resources in the positioning assistance data is configured based on one or more measurement capabilities of the positioning method.

[0274] 56. A non-transitory storage medium as described in clause 55, wherein one or more measurement capabilities of the positioning method indicate a maximum number of PRS resource sets per TRP per frequency layer, and wherein determining the priority for PRS measurements includes prioritizing a first PRS resource set listed in the information about the PRS resource sets.

[0275] 57. The non-transitory storage medium of clause 55, wherein one or more measurement capabilities of the positioning method indicate a maximum number of PRS resources per PRS resource set, and wherein determining the prioritization for PRS measurements comprises prioritizing a first PRS resource listed in the information about the PRS resources.

[0276] 58. A non-transitory storage medium as described in clause 55, wherein one or more measurement capabilities of the positioning method indicate a maximum number of PRS resources across all frequency layers, TRPs, and PRS resource sets, and wherein determining prioritization for PRS measurements includes one of: prioritizing based on frequency layer, then based on TRP, then based on PRS resource set, then based on PRS resource; or prioritizing a first PRS resource set from each TRP, followed by a second PRS resource set from each TRP.

[0277] 59. A non-transitory storage medium as described in clause 55, wherein one or more measurement capabilities of a positioning method indicate a maximum number of TRPs across all frequency layers, and wherein determining priority for PRS measurements includes: prioritizing a first frequency layer and all TRPs in the first frequency layer over a second frequency layer and all TRPs in the second frequency layer; or prioritizing a first TRP from each frequency layer followed by a second TRP from each frequency layer.

[0278] 60. A non-transitory storage medium as described in clause 55, wherein one or more measurement capabilities of a positioning method indicate a maximum number of PRS resources per frequency layer, and wherein determining prioritization for PRS measurements includes one of: prioritizing based on a TRP, then based on a PRS resource set, then based on a PRS resource; or prioritizing a first set of PRS resources from each TRP, followed by a second set of PRS resources from each TRP.

[0279] 61. A method for location determination of a user equipment (UE) in a wireless network, performed by a location server in the wireless network, comprising:

[0280] Receiving, from the UE, measurement capabilities according to a positioning method;

[0281] Generating positioning assistance data according to a positioning method, the positioning assistance data including information on positioning reference signal (PRS) resource sets and PRS resources, the information being configured based on the measurement capabilities according to the positioning method to provide a priority order of the PRS resource sets or PRS resources, or a combination thereof, to be measured by the UE, or indicating equal priorities of the PRS resource sets or PRS resources, or a combination thereof, to be measured by the UE; and

[0282] Transmitting the positioning assistance data according to the positioning method to the UE;

[0283] Wherein the location lock for the UE is determined based on PRS measurements performed by the UE using the priority order.

[0284] 62. The method according to clause 61, further comprising: receiving, from the UE, measurement information based on PRS measurements, wherein the location lock for the UE is determined by the location server.

[0285] 63. The method according to clause 61, wherein the location lock for the UE is determined by the UE.

[0286] 64. The method according to any one of clauses 61-63, wherein the positioning assistance data is according to a radio access technology (RAT)-related positioning method.

[0287] 65. The method according to any one of clauses 61-64, wherein the positioning assistance data according to the positioning method includes separate positioning assistance data for angle of departure (AOD), time difference of arrival (TDOA), and multi-cell round-trip time (M-RTT).

[0288] 66. The method according to any one of clauses 61-65, further comprising: transmitting a common PRS assistance data set, wherein the positioning assistance data according to the positioning method includes an index to the common PRS assistance data set.

[0289] 67. The method according to any one of clauses 61-66, wherein for each positioning method, the information on the PRS resource set in the positioning assistance data lists the PRS resource sets in the order of measurements to be performed by the UE.

[0290] 68. A method as described in clause 67, wherein the positioning assistance data further includes information about frequency layers and transmission points (TRPs), and wherein for each positioning method, the information further lists the frequency layers in the order of priority in which measurements are to be performed by the UE, or lists the TRPs within each frequency layer in the order of priority in which measurements are to be performed by the UE, or lists a combination thereof.

[0291] 69. A method as recited in any of clauses 61-68, wherein, for each positioning method, the information on PRS resources in the positioning assistance data lists the PRS resources in an order in which measurements are to be performed by the UE.

[0292] 70. A location server configured to support position determination of a user equipment (UE) in a wireless network comprising:

[0293] an external interface configured to communicate with an entity in the wireless network;

[0294] at least one memory;

[0295] at least one processor coupled to the external interface and the at least one memory, wherein the at least one processor is configured to:

[0296] receiving measurement capabilities according to positioning methods from the UE;

[0297] Generate positioning assistance data according to the positioning method, the positioning assistance data including information about positioning reference signal (PRS) resource sets and PRS resources, the information being configured based on measurement capabilities according to the positioning method to provide a priority order of PRS resource sets or PRS resources, or a combination thereof, to be measured by the UE, or to indicate the same priority of PRS resource sets or PRS resources, or a combination thereof, to be measured by the UE.

[0298] Equal priority; and

[0299] Transmitting positioning assistance data according to the positioning method to the UE;

[0300] Wherein a positioning fix for the UE is determined based on a PRS measurement performed by the UE using the priority order.

[0301] 71. The location server of clause 70, wherein the at least one processor is further configured to: receive measurement information based on PRS measurements from the UE, wherein a positioning fix for the UE is determined by the location server.

[0302] 72. The location server of clause 70, wherein the location fix for the UE is determined by the UE.

[0303] 73. A location server as described in any of clauses 70-72, wherein the positioning assistance data is in accordance with a Radio Access Technology (RAT) related positioning method.

[0304] 74. A location server as described in any of clauses 70-73, wherein the positioning assistance data per positioning method includes separate positioning assistance data for angle of departure (AOD), time difference of arrival (TDOA) and multi-cell round trip time (M-RTT).

[0305] 75. The location server of any of clauses 70-74, further comprising: transmitting a common PRS assistance data set, wherein the positioning assistance data per positioning method comprises a reference to the common PRS assistance data set.

[0306] 76. A location server as described in any of clauses 70-75, wherein, for each positioning method, the information on the PRS resource sets in the positioning assistance data lists the PRS resource sets in an order in which measurements are to be performed by the UE.

[0307] 77. A location server as described in clause 76, wherein the positioning assistance data further includes information about frequency layers and transmission points (TRPs), and wherein for each positioning method, the information further lists the frequency layers in the order of priority in which measurements are to be performed by the UE, or lists the TRPs within each frequency layer in the order of priority in which measurements are to be performed by the UE, or lists a combination thereof.

[0308] 78. A location server as described in any of clauses 70-77, wherein, for each positioning method, the information on PRS resources in the positioning assistance data lists the PRS resources in an order in which measurements are to be performed by the UE.

[0309] 79. A location server configured to support position determination of a user equipment (UE) in a wireless network comprising:

[0310] means for receiving per-positioning method measurement capabilities from the UE;

[0311] means for generating per-positioning method positioning assistance data, the positioning assistance data comprising information on positioning reference signal (PRS) resource sets and PRS resources, the information being configured based on per-positioning method measurement capabilities to provide a priority order of PRS resource sets or PRS resources, or a combination thereof, to be measured by a UE, or indicating equal priorities of PRS resource sets or PRS resources, or a combination thereof, to be measured by a UE; and

[0312] means for transmitting positioning assistance data according to a positioning method to the UE;

[0313] Wherein a positioning fix for the UE is determined based on a PRS measurement performed by the UE using the priority order.

[0314] 80. The location server of clause 79, further comprising: means for receiving measurement information based on PRS measurements from the UE, wherein a positioning fix for the UE is determined by the location server.

[0315] 81. The location server of clause 79, wherein the location fix for the UE is determined by the UE.

[0316] 82. A location server as described in any of clauses 79-81, wherein the positioning assistance data is in accordance with a Radio Access Technology (RAT) dependent positioning method.

[0317] 83. A location server as described in any of clauses 79-82, wherein the positioning assistance data per positioning method includes separate positioning assistance data for angle of departure (AOD), time difference of arrival (TDOA) and multi-cell round trip time (M-RTT).

[0318] 84. The location server of any of clauses 79-83, further comprising: transmitting a common PRS assistance data set, wherein the positioning assistance data per positioning method comprises a reference to the common PRS assistance data set.

[0319] 85. A location server as described in any of clauses 79-84, wherein, for each positioning method, the information on the PRS resource sets in the positioning assistance data lists the PRS resource sets in an order in which measurements are to be performed by the UE.

[0320] 86. A location server as described in clause 85, wherein the positioning assistance data further includes information about frequency layers and transmission points (TRPs), and wherein for each positioning method, the information further lists the frequency layers in the order of priority in which measurements are to be performed by the UE, or lists the TRPs within each frequency layer in the order of priority in which measurements are to be performed by the UE, or lists a combination thereof.

[0321] 87. A location server as described in any of clauses 79-86, wherein, for each positioning method, the information on PRS resources in the positioning assistance data lists the PRS resources in an order in which measurements are to be performed by the UE.

[0322] 88. A non-transitory storage medium comprising program code stored thereon, the program code being operable to configure at least one processor in a location server, the location server being configured to support positioning determination of a user equipment (UE), the non-transitory storage medium comprising:

[0323] program code for receiving per-positioning method measurement capabilities from the UE;

[0324] Program code for generating per-positioning method positioning assistance data, the positioning assistance data comprising information on positioning reference signal (PRS) resource sets and PRS resources, the information being configured based on per-positioning method measurement capabilities to provide a priority order of PRS resource sets or PRS resources, or a combination thereof, to be measured by a UE, or indicating equal priorities of PRS resource sets or PRS resources, or a combination thereof, to be measured by a UE; and

[0325] Program code for transmitting positioning assistance data according to a positioning method to the UE;

[0326] Wherein a positioning fix for the UE is determined based on a PRS measurement performed by the UE using the priority order.

[0327] 89. The non-transitory storage medium of clause 88, further comprising: program code for receiving measurement information based on PRS measurements from the UE, wherein a positioning fix for the UE is determined by the location server.

[0328] 90. The non-transitory storage medium of clause 88, wherein a location fix for the UE is determined by the UE.

[0329] 91. A non-transitory storage medium as described in any of clauses 88-90, wherein the positioning assistance data is in accordance with a radio access technology (RAT) related positioning method.

[0330] 92. A non-transitory storage medium as described in any of clauses 88-91, wherein the positioning assistance data per positioning method includes separate positioning assistance data for angle of departure (AOD), time difference of arrival (TDOA) and multi-cell round trip time (M-RTT).

[0331] 93. The non-transitory storage medium of any of clauses 88-92, further comprising: transmitting a common PRS assistance data set, wherein the positioning assistance data per positioning method comprises a reference to the common PRS assistance data set.

[0332] 94. The non-transitory storage medium of any of clauses 88-93, wherein, for each positioning method, the information about the PRS resource sets in the positioning assistance data lists the PRS resource sets in an order in which measurements are to be performed by the UE.

[0333] 95. A non-volatile storage medium as described in clause 94, wherein the positioning assistance data further includes information about frequency layers and transmission points (TRPs), wherein for each positioning method, the information further lists the frequency layers in a priority order for measurements to be performed by the UE, or lists the TRPs within each frequency layer in a priority order for measurements to be performed by the UE, or lists a combination thereof.

[0334] 96. The non-transitory storage medium of any of clauses 88-95, wherein, for each positioning method, the information on PRS resources in the positioning assistance data lists the PRS resources in an order in which measurements are to be performed by the UE.

[0335] Therefore, it is intended that the claimed subject matter not be limited to the particular examples disclosed, but that the claimed subject matter may also include all aspects falling within the scope of the appended claims and their equivalents.

Claims

1. A method for determining the position of a user equipment UE in a wireless network, include: Receiving positioning assistance data according to a positioning method, the positioning assistance data comprising information about one or more positioning reference signal PRS resource sets and one or more PRS resources; as well as determining a PRS measurement for the PRS signal based at least on a priority ranking for the PRS signal within each of at least one transmission point TRP, wherein the priority ranking for the PRS signal is based at least on an indication of the priority ranking for the PRS signal in the positioning assistance data, the indication indicating one or more priority rankings for information of the PRS resource set in the positioning assistance data; The positioning lock for the UE is determined based on the PRS measurement.

2. The method of claim 1, further comprising: include: Measurement information based on the PRS measurement is reported to an entity in the wireless network, wherein the positioning fix for the UE is determined by the entity in the wireless network.

3. The method of claim 1, wherein the positioning fix for the UE is determined by the UE. The method according to claim 1 , wherein the positioning assistance data is in accordance with a radio access technology (RAT)-related positioning method.

5. The method of claim 1, wherein the positioning assistance data according to the positioning method includes separate positioning assistance data for angle of departure AOD, time difference of arrival TDOA, and multi-cell round trip time M-RTT.

6. The method of claim 1, wherein the positioning assistance data per positioning method comprises an index to a common PRS assistance data set.

7. The method as claimed in claim 1, wherein for each positioning method, the information about the one or more PRS resource sets of a TRP in the at least one TRP in the positioning assistance data lists the PRS resource sets in a priority order of measurement to be performed by the UE.

8. A method as claimed in claim 7, wherein the positioning assistance data further includes information about one or more frequency layers and each of the at least one TRP, and wherein for each positioning method, the information further lists the frequency layers in the priority order of measurements to be performed by the UE, or lists each of the at least one TRP within each frequency layer in the priority order of measurements to be performed by the UE, or lists a combination thereof.

9. The method of claim 1, wherein for each positioning method, the information about the one or more PRS resources of a PRS resource set in the positioning assistance data lists the PRS resources in a priority order for which measurements are to be performed by the UE.

10. The method of claim 1, wherein the positioning assistance data further comprises information about one or more frequency layers and the at least one TRP, the method further comprising: include: reporting one or more measurement capabilities per positioning method to an entity in the wireless network; The information about the frequency layer, each of the at least one TRP, the PRS resource set and the PRS resource in the positioning assistance data is configured based on one or more measurement capabilities of the positioning method.

11. The method of claim 10, wherein the one or more measurement capabilities of the positioning method indicate a maximum number of PRS resource sets per TRP per frequency layer, and wherein determining a priority order for the PRS measurements comprises prioritizing a first PRS resource set listed in the information about the PRS resource sets.

12. The method of claim 10, wherein the one or more measurement capabilities per positioning method indicate a maximum number of PRS resources per PRS resource set, and wherein determining a priority ranking for the PRS measurements comprises prioritizing a first PRS resource listed in the information about the PRS resources.

13. The method of claim 10, wherein the one or more measurement capabilities per positioning method indicate a maximum number of PRS resources across all frequency layers, TRPs, and PRS resource sets, and wherein determining a priority order for the PRS measurements comprises one of: prioritizing based on frequency layer, then based on TRP, then based on PRS resource set, then based on PRS resource; or prioritizing a first PRS resource set from each TRP, followed by a second PRS resource set from each of the at least one TRP.

14. The method of claim 10, wherein the one or more measurement capabilities per positioning method indicate a maximum number of TRPs across all frequency layers, and wherein determining a priority ranking for the PRS measurements include: Prioritize a first frequency layer and all TRPs in the first frequency layer over a second frequency layer and all TRPs in the second frequency layer; Or prioritize the first TRP from each frequency layer, followed by the second TRP from each frequency layer.

15. The method of claim 10, wherein the one or more measurement capabilities of the positioning method indicate a maximum number of PRS resources per frequency layer, and wherein determining a priority order for the PRS measurements comprises one of: prioritizing based on a TRP, then based on a PRS resource set, then based on a PRS resource; or prioritizing a first PRS resource set from each of the at least one TRP, followed by a second PRS resource set from each TRP.

16. A user equipment UE configured to support positioning determination in a wireless network, include: a wireless transceiver configured to communicate wirelessly in the wireless network; at least one memory; as well as at least one processor coupled to the wireless transceiver and the at least one memory, wherein the at least one processor is configured to: Receiving positioning assistance data according to a positioning method, the positioning assistance data comprising information about one or more positioning reference signal PRS resource sets and one or more PRS resources; as well as determining a PRS measurement of a PRS signal based at least on a priority ranking for the PRS signal within each of at least one transmission point TRP, wherein the priority ranking for the PRS signal is based at least on an indication of the priority ranking for the PRS signal in the positioning assistance data, the indication indicating one or more priority rankings for information of the PRS resource set in the positioning assistance data; The positioning lock for the UE is determined based on the PRS measurement.

17. The UE of claim 16, wherein the at least one processor is further configured to: report measurement information based on the PRS measurement to an entity in the wireless network, wherein the positioning fix for the UE is determined by the entity in the wireless network.

18. The UE of claim 16, wherein the at least one processor is further configured to determine the positioning fix for the UE.

19. The UE according to claim 16, wherein the positioning assistance data is in accordance with a radio access technology (RAT)-related positioning method.

20. The UE of claim 16, wherein the positioning assistance data according to the positioning method comprises separate positioning assistance data for angle of departure AOD, time difference of arrival TDOA, and multi-cell round trip time M-RTT.

21. The UE of claim 16, wherein the positioning assistance data according to the positioning method comprises an index to a common PRS assistance data set.

22. The UE as claimed in claim 16, wherein for each positioning method, the information about the one or more PRS resource sets of a TRP in the at least one TRP in the positioning assistance data lists the PRS resource sets in a priority order of measurement to be performed by the UE.

23. The UE of claim 22, wherein the positioning assistance data further includes information about one or more frequency layers and each of the at least one TRP, and wherein for each positioning method, the information further lists the frequency layers in the order of priority for measurements to be performed by the UE, or lists the at least one TRP within each frequency layer in the order of priority for measurements to be performed by the UE, or lists a combination thereof.

24. The UE of claim 16, wherein for each positioning method, the information about the one or more PRS resources of a PRS resource set in the positioning assistance data lists the PRS resources in a priority order for which measurements are to be performed by the UE.

25. The UE of claim 16, wherein the positioning assistance data further comprises information about one or more frequency layers and the at least one TRP, and wherein the at least one processor is further configured to: reporting one or more measurement capabilities per positioning method to an entity in the wireless network; The information about the frequency layer, each of the at least one TRP, the PRS resource set and the PRS resource in the positioning assistance data is configured based on one or more measurement capabilities of the positioning method.

26. A UE as claimed in claim 25, wherein the one or more measurement capabilities according to the positioning method indicate a maximum number of PRS resource sets per TRP per frequency layer, and wherein in order to determine the priority order for the PRS measurements, the at least one processor is configured to prioritize the first PRS resource set listed in the information about the PRS resource set.

27. The UE of claim 25, wherein the one or more measurement capabilities per positioning method indicate a maximum number of PRS resources per PRS resource set, and wherein in order to determine a priority ranking for the PRS measurements, the at least one processor is configured to prioritize a first PRS resource listed in the information about the PRS resources.

28. The UE of claim 25, wherein the one or more measurement capabilities per positioning method indicate a maximum number of PRS resources across all frequency layers, TRPs, and PRS resource sets, and wherein to determine a priority order for the PRS measurements, the at least one processor is configured to: Prioritize based on frequency layer, then based on TRP, then based on PRS resource set, then based on PRS resource; or A first set of PRS resources from each TRP is prioritized, followed by a second set of PRS resources from each of the at least one TRP.

29. The UE of claim 25, wherein the one or more measurement capabilities per positioning method indicate a maximum number of TRPs across all frequency layers, and wherein to determine a priority order for the PRS measurements, the at least one processor is configured to: Prioritize a first frequency layer and all TRPs in the first frequency layer over a second frequency layer and all TRPs in the second frequency layer; or The first TRP from each frequency layer is prioritized, followed by the second TRP from each frequency layer.

30. The UE of claim 25, wherein the one or more measurement capabilities per positioning method indicate a maximum number of PRS resources per frequency layer, and wherein to determine a priority order for the PRS measurement, the at least one processor is configured to: Prioritize based on TRP, then based on PRS resource set, then based on PRS resource; or A first set of PRS resources from each of the at least one TRP is prioritized, followed by a second set of PRS resources from each TRP.

31. A user equipment UE configured to support positioning determination in a wireless network, include: An apparatus for receiving positioning assistance data according to a positioning method, the positioning assistance data comprising information about one or more positioning reference signal PRS resource sets and one or more PRS resources; as well as means for determining a PRS measurement of a PRS signal based at least on a priority ranking for the PRS signal within each of at least one transmission point (TRP), wherein the priority ranking for the PRS signal is based at least on an indication of the priority ranking for the PRS signal in the positioning assistance data, the indication indicating one or more priority rankings of information for the PRS resource set in the positioning assistance data; The positioning lock for the UE is determined based on the PRS measurement.

32. The UE according to claim 31, further include: Means for reporting measurement information based on the PRS measurement to an entity in the wireless network, wherein the positioning fix for the UE is determined by the entity in the wireless network.

33. The UE of claim 31 , further comprising means for determining the positioning fix for the UE.

34. The UE according to claim 31, wherein the positioning assistance data is in accordance with a radio access technology (RAT)-related positioning method.

35. The UE of claim 31, wherein the positioning assistance data according to the positioning method comprises separate positioning assistance data for angle of departure AOD, time difference of arrival TDOA, and multi-cell round trip time M-RTT.

36. The UE of claim 31, wherein the positioning assistance data per positioning method comprises an index to a common PRS assistance data set.

37. The UE as described in claim 31, wherein for each positioning method, the information about the one or more PRS resource sets of a TRP in the at least one TRP in the positioning assistance data lists the PRS resource sets in a priority order of measurement to be performed by the UE.

38. A UE as claimed in claim 37, wherein the positioning assistance data further includes information about one or more frequency layers and each of the at least one TRP, and wherein for each positioning method, the information further lists the frequency layers in the priority order of measurements to be performed by the UE, or lists each of the at least one TRP within each frequency layer in the priority order of measurements to be performed by the UE, or lists a combination thereof.

39. The UE of claim 31, wherein for each positioning method, the information about the one or more PRS resources of a PRS resource set in the positioning assistance data lists the PRS resources in a priority order for which measurements are to be performed by the UE.

40. The UE of claim 31, wherein the positioning assistance data further comprises information about one or more frequency layers and the at least one TRP, the UE further include: means for reporting one or more measurement capabilities per positioning method to an entity in the wireless network; The information about the frequency layer, each of the at least one TRP, the PRS resource set and the PRS resource in the positioning assistance data is configured based on one or more measurement capabilities of the positioning method.

41. A UE as claimed in claim 40, wherein the one or more measurement capabilities according to the positioning method indicate a maximum number of PRS resource sets per TRP per frequency layer, and wherein the device for determining the priority order for the PRS measurement is configured to prioritize the first PRS resource set listed in the information about the PRS resource set.

42. The UE of claim 40, wherein the one or more measurement capabilities per positioning method indicate a maximum number of PRS resources per PRS resource set, and wherein the means for determining a priority ranking for the PRS measurements comprises means for prioritizing a first PRS resource listed in the information about the PRS resources.

43. The UE of claim 40, wherein the one or more measurement capabilities per positioning method indicate a maximum number of PRS resources across all frequency layers, TRPs, and PRS resource sets, and wherein the means for determining a priority order for the PRS measurements is configured for one of: Prioritize based on frequency layer, then based on TRP, then based on PRS resource set, then based on PRS resource; or A first set of PRS resources from each TRP is prioritized, followed by a second set of PRS resources from each of the at least one TRP.

44. The UE of claim 40, wherein the one or more measurement capabilities per positioning method indicate a maximum number of TRPs across all frequency layers, and wherein the means for determining a priority ranking for the PRS measurements comprises means for: Prioritize a first frequency layer and all TRPs in the first frequency layer over a second frequency layer and all TRPs in the second frequency layer; or The first TRP from each frequency layer is prioritized, followed by the second TRP from each frequency layer.

45. The UE of claim 40, wherein the one or more measurement capabilities per positioning method indicate a maximum number of PRS resources per frequency layer, and wherein the means for determining a priority ranking for the PRS measurement is configured for one of: Prioritize based on TRP, then based on PRS resource set, then based on PRS resource; or A first set of PRS resources from each of the at least one TRP is prioritized, followed by a second set of PRS resources from each TRP.

46. ​​A non-transitory storage medium comprising program code stored thereon, the program code being operable to configure at least one processor in a user equipment (UE) in a wireless network, the UE being configured to support positioning determination of the UE, the non-transitory storage medium include: program code for receiving positioning assistance data according to a positioning method, the positioning assistance data comprising information about one or more positioning reference signal (PRS) resource sets and one or more PRS resources; as well as program code for determining a PRS measurement for a PRS signal based at least on a priority ranking for the PRS signal within each of at least one transmission point (TRP), wherein the priority ranking for the PRS signal is based at least on an indication of the priority ranking for the PRS signal in the positioning assistance data, the indication indicating one or more priority rankings for information of the PRS resource set in the positioning assistance data; The positioning lock for the UE is determined based on the PRS measurement.

47. The non-transitory storage medium of claim 46, further comprising: include: Program code for reporting measurement information based on the PRS measurement to an entity in the wireless network, wherein the positioning fix for the UE is determined by the entity in the wireless network.

48. The non-transitory storage medium of claim 46, further comprising program code for determining the positioning fix for the UE.

49. The non-transitory storage medium of claim 46, wherein the positioning assistance data is in accordance with a radio access technology (RAT)-related positioning method.

50. The non-transitory storage medium of claim 46, wherein the positioning assistance data according to the positioning method includes separate positioning assistance data for angle of departure AOD, time difference of arrival TDOA, and multi-cell round trip time M-RTT.

51. The non-transitory storage medium of claim 46, wherein the per-positioning method positioning assistance data comprises an index to a common PRS assistance data set.

52. A non-volatile storage medium as described in claim 46, wherein for each positioning method, the information about the one or more PRS resource sets of a TRP in the at least one TRP in the positioning assistance data lists the PRS resource sets in a priority order for measurements to be performed by the UE.

53. A non-volatile storage medium as described in claim 52, wherein the positioning assistance data further includes information about one or more frequency layers and each of the at least one TRP, and wherein for each positioning method, the information further lists the frequency layers in the priority order of measurements to be performed by the UE, or lists each of the at least one TRP within each frequency layer in the priority order of measurements to be performed by the UE, or lists a combination thereof.

54. The non-transitory storage medium of claim 46, wherein for each positioning method, the information about the one or more PRS resources of a PRS resource set in the positioning assistance data lists the PRS resources in a priority order for which measurements are to be performed by the UE.

55. The non-transitory storage medium of claim 46, wherein the positioning assistance data further comprises information about one or more frequency layers and the at least one TRP, the non-transitory storage medium further comprising: include: program code for reporting one or more measurement capabilities per positioning method to an entity in the wireless network; The information about the frequency layer, each of the at least one TRP, the PRS resource set and the PRS resource in the positioning assistance data is configured based on one or more measurement capabilities of the positioning method.

56. A non-transitory storage medium as described in claim 55, wherein the one or more measurement capabilities of the positioning method indicate a maximum number of PRS resource sets per TRP per frequency layer, and wherein the program code for determining the priority ranking for the PRS measurements includes program code for prioritizing the first PRS resource set listed in the information about the PRS resource sets.

57. A non-transitory storage medium as described in claim 55, wherein the one or more measurement capabilities of the positioning method indicate a maximum number of PRS resources per PRS resource set, and wherein the program code for determining the priority ranking for the PRS measurements includes program code for prioritizing a first PRS resource listed in the information about the PRS resources.

58. The non-transitory storage medium of claim 55, wherein the one or more measurement capabilities per positioning method indicate a maximum number of PRS resources across all frequency layers, TRPs, and PRS resource sets, and wherein the program code for determining a priority ranking for the PRS measurements comprises one of: Program code for prioritizing based on frequency layer, then based on TRP, then based on PRS resource set, then based on PRS resource; or Program code for prioritizing a first set of PRS resources from each TRP followed by a second set of PRS resources from each of the at least one TRP.

59. The non-transitory storage medium of claim 55, wherein the one or more measurement capabilities per positioning method indicate a maximum number of TRPs across all frequency layers, and wherein the program code for determining a priority ranking for the PRS measurements include: Program code for prioritizing a first frequency layer and all TRPs in the first frequency layer over a second frequency layer and all TRPs in the second frequency layer; or Program code for prioritizing a first TRP from each frequency layer, followed by a second TRP from each frequency layer.

60. The non-transitory storage medium of claim 55, wherein the one or more measurement capabilities per positioning method indicate a maximum number of PRS resources per frequency layer, and wherein the program code for determining a priority ranking for the PRS measurements comprises one of: Program code for prioritizing based on a TRP, then based on a PRS resource set, then based on a PRS resource; or Program code for prioritizing a first set of PRS resources from each of the at least one TRP, followed by a second set of PRS resources from each TRP.

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