Accuracy of positioning technology in full duplex mode

Abstract

Techniques for utilizing positioning reference signals (PRS) in full duplex scenarios are provided. An example method of providing positioning information of a mobile device to a base station includes receiving, at the mobile device, a positioning request and an accuracy requirement from the base station, determining one or more positioning reference signal transmissions based on the accuracy requirement, obtaining positioning measurement information based on the one or more positioning reference signal transmissions, and providing the positioning measurement information to the base station.

Description

Technical Field

[0001] Various aspects of this disclosure relate to wireless communication, and more specifically, to techniques for user equipment to utilize positioning reference signals in full-duplex operation. Background Technology

[0002] Wireless communication systems are widely deployed to provide a variety of telecommunications services such as telephone, video, data, messaging, broadcasting, and location services. These wireless communication systems can employ multiple access technologies that enable communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access systems include the 3GPP 5G New Radio (5G NR), LTE systems, LTE-Advanced (LTE-A) systems, Code Division Multiple Access (CDMA) systems, Time Division Multiple Access (TDMA) systems, Frequency Division Multiple Access (FDMA) systems, Orthogonal Frequency Division Multiple Access (OFDMA) systems, Single Carrier Frequency Division Multiple Access (SC-FDMA) systems, and Time Division Synchronous Code Division Multiple Access (TD-SCDMA) systems, to name just a few.

[0003] Determining the location or position of a mobile device accessing a wireless communication system can be useful for many applications, including emergency calls, personal navigation, asset tracking, and locating friends or family. Existing positioning methods include those based on measuring radio signals transmitted from various devices, including satellite vehicles (SVs) and terrestrial wireless power sources (such as base stations and access points) in wireless networks. In terrestrial wireless power-based methods, the mobile device can measure the timing of signals received from two or more base stations and determine the time of arrival, time difference of arrival, and / or time-to-transmit time difference. By combining these measurements with the known locations of the base stations and the known transmission times from each base station, positioning methods such as Observed Time Difference of Arrival (OTDOA) or Enhanced Cell ID (ECID) can be used to determine the location of the mobile device.

[0004] To further aid in location determination (e.g., for OTDOA), a Positioning Reference Signal (PRS) can be transmitted by the base station to increase both measurement accuracy and the number of different base stations from which the mobile device can obtain timed measurements. Typically, base stations and mobile devices communicate using half-duplex operation, which sequentially utilizes either a downlink channel (e.g., for transmission from the base station to the mobile device) or an uplink channel (e.g., for transmission from the mobile device to the base station). However, emerging technologies will enable full-duplex operation, allowing either the base station or the mobile device to communicate simultaneously on both downlink and uplink channels. Full-duplex operation may reduce the efficiency of the terrestrial positioning process. Summary of the Invention

[0005] According to a publicly available example method for providing location information of a mobile device to a base station, the method includes receiving a location request and an accuracy requirement from the base station at the mobile device, determining one or more location reference signal transmissions based on the accuracy requirement, obtaining location measurement information based on the one or more location reference signal transmissions, and providing the location measurement information to the base station.

[0006] Implementations of this method may include one or more of the following features: One of the one or more positioning reference signal transmissions may be in a half-duplex time slot. One of the one or more positioning reference signal transmissions may be in a full-duplex time slot. Positioning measurement information may include reference signal time difference measurements. Positioning measurement information may include RSSI or RTT measurements. Downlink positioning measurements may be obtained by the mobile device concurrently with uplink transmissions from the mobile device. One or more symbols of the downlink positioning measurements may overlap with one or more symbols of the uplink transmissions. Time slot information may be provided to the base station based on the overlap between the one or more symbols of the downlink positioning measurements and the one or more symbols of the uplink transmissions. The time slot information may include a bitmap based on the one or more symbols in the overlap. The time slot information may include flag variables or single bits indicating the presence of overlap.

[0007] Examples of methods for providing location information of a mobile device to a server according to this disclosure include: determining location information of the mobile device, determining a duplex mode configuration associated with the location information, and providing the location information and an instruction on the duplex mode configuration to the server.

[0008] Implementations of this method may include one or more of the following features: Determining location information may include receiving location information from a mobile device via a wireless signal. Determining a duplex mode configuration may include receiving an indication of a duplex mode configuration from a mobile device via a wireless signal. The indication of the duplex mode configuration may include a beam identification value. The indication of the duplex mode configuration may include time slot information indicating that downlink location measurements are obtained by the mobile device concurrently with uplink transmissions from the mobile device. One or more symbols of the downlink location measurements may overlap with one or more symbols of the uplink transmissions. The time slot information may be based on the overlap between the one or more symbols of the downlink location measurements and the one or more symbols of the uplink transmissions. The time slot information may include a bitmap based on the one or more symbols in the overlap. The time slot information may include a flag variable or a single bit indicating the presence of overlap. Providing an indication of the duplex mode configuration may include indicating that the location information is obtained in a full-duplex time slot. Providing an indication of the duplex mode configuration may include indicating that the location information is obtained from a base station operating in split-panel mode.

[0009] An example of a method for providing a positioning reference signal silence pattern according to this disclosure includes determining a full-duplex scheme comprising a plurality of full-duplex time slots, determining a positioning reference signal silence pattern based at least in part on the plurality of full-duplex time slots, and providing the positioning reference signal silence pattern to a mobile device.

[0010] Implementations of this method may include one or more of the following features: A positioning reference signal silencing pattern may be configured to silence the positioning reference signal in multiple full-duplex time slots within a full-duplex scheme. A positioning reference signal silencing pattern may be configured to silence the positioning reference signal in one or more in-band full-duplex time slots within a full-duplex scheme, wherein these one or more in-band full-duplex time slots allow simultaneous uplink and downlink transmission without a guard band. A positioning reference signal silencing pattern may be configured to silence the positioning reference signal in one or more sub-band full-duplex time slots within a full-duplex scheme, wherein these one or more sub-band full-duplex time slots allow simultaneous uplink and downlink transmission without sufficient frequency separation to reduce self-interference on the mobile device. A positioning reference signal silencing pattern may exclude the positioning reference signal in one or more sub-band full-duplex time slots within a full-duplex scheme, wherein these one or more sub-band full-duplex time slots allow simultaneous uplink and downlink transmission without sufficient frequency separation to reduce self-interference on the mobile device.

[0011] An example apparatus according to this disclosure includes a memory, one or more transceivers, a processor communicatively coupled to the memory and one or more transceivers, configured to receive a positioning request and an accuracy requirement from a base station, determine one or more positioning reference signal transmissions based on the accuracy requirement, obtain positioning measurement information based on the one or more positioning reference signal transmissions, and provide the positioning measurement information to the base station.

[0012] Implementations of this device may include one or more of the following features: One of the one or more positioning reference signal transmissions may be in a half-duplex time slot. One of the one or more positioning reference signal transmissions may be in a full-duplex time slot. Positioning measurement information may include reference signal time difference measurements. Positioning measurement information may include RSSI or RTT measurements. Downlink positioning measurements may be obtained using one or more transceivers simultaneously with uplink transmissions of the same one or more transceivers. One or more symbols of the downlink positioning measurements may overlap with one or more symbols of the uplink transmission. Time slot information may be provided to the base station based on the overlap between the one or more symbols of the downlink positioning measurements and the one or more symbols of the uplink transmission. The time slot information may include a bitmap based on the one or more symbols in the overlap. The time slot information may include flag variables or single bits indicating the presence of overlap.

[0013] An example apparatus according to this disclosure includes a memory and a processor communicatively coupled to the memory and configured to determine location information of a mobile device, determine a duplex mode configuration associated with the location information, and provide the location information and an instruction on the duplex mode configuration to a server.

[0014] Implementations of this device may include one or more of the following features: Indication of duplex mode configuration may include a beam identification value. Indication of duplex mode configuration may include time slot information indicating downlink positioning measurements obtained by the mobile device concurrent with uplink transmission from the mobile device. One or more symbols of the downlink positioning measurements may overlap with one or more symbols of the uplink transmission. Time slot information may be based on the overlap between one or more symbols of the downlink positioning measurements and one or more symbols of the uplink transmission. Time slot information may include a bitmap based on the one or more symbols in the overlap. Time slot information may include a flag variable or a single bit indicating the presence of overlap. The processor may be configured to provide indication that the positioning information is obtained in a full-duplex time slot. The processor may be configured to provide indication that the positioning information is obtained from a base station operating in split-panel mode.

[0015] An example apparatus according to this disclosure includes a memory, a transceiver, and a processor communicatively coupled to the memory and the transceiver and configured to determine a full-duplex scheme including a plurality of full-duplex time slots, determine a positioning reference signal silence pattern based at least in part on the plurality of full-duplex time slots, and provide the positioning reference signal silence pattern to a mobile device.

[0016] Implementations of this device may include one or more of the following features: A positioning reference signal silencing pattern can be configured to silence the positioning reference signal in multiple full-duplex time slots within a full-duplex scheme. A positioning reference signal silencing pattern can be configured to silence the positioning reference signal in one or more in-band full-duplex time slots within a full-duplex scheme, wherein the one or more in-band full-duplex time slots allow simultaneous uplink and downlink transmission without a guard band. A positioning reference signal silencing pattern can be configured to silence the positioning reference signal in one or more sub-band full-duplex time slots within a full-duplex scheme, wherein the one or more sub-band full-duplex time slots allow simultaneous uplink and downlink transmission without sufficient frequency separation to reduce self-interference on the mobile device. A positioning reference signal silencing pattern can exclude the positioning reference signal in one or more sub-band full-duplex time slots within a full-duplex scheme, wherein the one or more sub-band full-duplex time slots allow simultaneous uplink and downlink transmission without sufficient frequency separation to reduce self-interference on the mobile device.

[0017] An example apparatus for providing positioning information of a mobile device to a base station according to the present disclosure includes components for receiving a positioning request and an accuracy requirement from the base station, components for determining one or more positioning reference signal transmissions based on the accuracy requirement, components for obtaining positioning measurement information based on the one or more positioning reference signal transmissions, and components for providing the positioning measurement information to the base station.

[0018] An example non-transitory processor-readable storage medium according to the present disclosure includes processor-readable instructions configured to enable one or more processors to provide location information of a mobile device to a base station, including code for receiving a location request and accuracy requirement from a base station, code for determining one or more location reference signal transmissions based on the accuracy requirement, code for obtaining location measurement information based on the one or more location reference signal transmissions, and code for providing the location measurement information to the base station.

[0019] An example apparatus for providing location information of a mobile device to a server according to the present disclosure includes components for determining location information of the mobile device, components for determining a duplex mode configuration associated with the location information, and components for providing the location information and an indication of the duplex mode configuration to the server.

[0020] An example non-transitory processor-readable storage medium according to the present disclosure includes processor-readable instructions configured to enable one or more processors to provide location information of a mobile device to a server, including code for determining location information of the mobile device, code for determining a duplex mode configuration associated with the location information, and code for providing the location information and an indication of the duplex mode configuration to the server.

[0021] An example apparatus for providing a positioning reference signal silence pattern according to the present disclosure includes components for determining a full-duplex scheme including a plurality of full-duplex time slots, components for determining a positioning reference signal silence configuration based at least in part on the plurality of full-duplex time slots, and components for providing the positioning reference signal silence configuration to a mobile device.

[0022] An example non-transitory processor-readable storage medium according to this disclosure includes processor-readable instructions configured to enable one or more processors to provide a positioning reference signal silence pattern, comprising code for determining a full-duplex scheme including a plurality of full-duplex time slots, code for determining a positioning reference signal silence configuration based at least in part on the plurality of full-duplex time slots, and code for providing the positioning reference signal silence configuration to a mobile device.

[0023] The items and / or technologies described herein may provide one or more of the following capabilities, as well as others not mentioned. Base stations and user equipment can be configured for full-duplex operation. The communication network may be based on a full-duplex scheme comprising frames with half-duplex and full-duplex time slots. Base stations may be configured to transmit downlink location reference signals (PRS) in both half-duplex and full-duplex time slots. The beamwidth of downlink PRS transmission may be increased due to the bifurcation of antenna elements between the transmit and receive chains in the base station. The accuracy of location estimation based on PRS transmission in full-duplex time slots may decrease due to the increased PRS beamwidth and self-interference on mobile devices. Downlink PRS transmission may be silenced in some full-duplex time slots. Half-duplex and full-duplex time slots may be associated with different accuracy requirements. The use of full-duplex time slots for positioning can be reported to a location server. The degree of overlap between downlink PRS transmissions received on mobile devices and active UL transmissions can be captured and reported. Other capabilities may be provided, and not all, of the discussed capabilities must be provided in every embodiment of this disclosure. Furthermore, it is possible that the aforementioned effects can also be achieved using components other than those described above, and the aforementioned projects / technologies may not necessarily produce the aforementioned effects. Attached Figure Description

[0024] Figure 1 It is a conceptual block diagram illustrating an example telecommunications system.

[0025] Figure 2 This is a block diagram illustrating an example architecture of a distributed radio access network (RAN) according to certain aspects of this disclosure.

[0026] Figures 3A to 3C Different full-duplex communication modes in a telecommunications system are shown.

[0027] Figure 4A and Figure 4B Examples of different types of full-duplex operation are shown.

[0028] Figure 5 Example spectrum for full-duplex base stations and half-duplex mobile devices is shown.

[0029] Figure 6 Example spectrum for full-duplex base stations and full-duplex mobile devices is shown.

[0030] Figure 7A and Figure 7B An example downlink positioning reference signal resource set is shown.

[0031] Figure 8 Example subframes and time slot formats for positioning reference signal (PRS) transmission are shown.

[0032] Figure 9 An example spectrum for sub-band full-duplex positioning reference signal (PRS) transmission is shown.

[0033] Figure 10 An example spectrum for full-duplex positioning reference signal (PRS) transmission is shown.

[0034] Figure 11A This is a diagram of example beamwidths associated with half-duplex and full-duplex Position Reference Signal (PRS) transmission.

[0035] Figure 11B This is an example location message stream between a base station and a mobile device.

[0036] Figure 12 This is a flowchart of an example method for providing a silent style of positioning reference signal.

[0037] Figure 13 This is a flowchart of an example method for silently locating reference signals based on full-duplex scheduling.

[0038] Figure 14 This is a flowchart of an example method for providing location information to a web server.

[0039] Figure 15A This is a flowchart of an example method for receiving location information from a mobile device.

[0040] Figure 15B This is a flowchart of an example method for providing location information to a base station.

[0041] Figure 16 A block diagram of an example computer system is shown.

[0042] Figure 17 This is a block diagram of an example mobile device.

[0043] Figure 18 This is a block diagram of an example base station. Detailed Implementation

[0044] This paper discusses techniques for utilizing Positioning Reference Signals (PRS) in full-duplex scenarios. 5G NR deployments may include frames with time slots configured for full-duplex operation. In full-duplex communication mode, the antenna system may configure some elements to transmit while others are configured to receive. The signal-to-noise ratio (SNR) of a station or mobile device operating in full-duplex mode may be reduced due to self-interference (e.g., transmitter leakage). PRS transmissions may occur during time slots configured for full-duplex operation. The beamwidth of PRS transmissions during full-duplex operation may increase based on the reduced number of antenna elements configured to transmit. The accuracy of positioning estimates based on PRS transmissions in full-duplex time slots may decrease. Self-interference on mobile devices may further reduce positioning estimates. In the example, PRS transmissions in full-duplex time slots can be explicit or implicitly silent. In another example, positioning accuracy requirements can be defined for PRS positioning estimates obtained from PRS transmissions in half-duplex and full-duplex time slots. Full-duplex time slots can be associated with reduced or non-existent accuracy requirements (i.e., accuracy requirements may not apply to full-duplex time slots). Mobile devices can be configured to provide indications about whether positioning measurements are obtained in half-duplex or full-duplex time slots. For full-duplex time slots, mobile devices can report whether PRS signals overlap with active uplink (UL) transmissions from the mobile device. These techniques are merely examples and are not exhaustive.

[0045] The following description provides examples and does not limit the scope, applicability, or examples set forth in the claims. Changes may be made to the function and arrangement of the elements discussed without departing from the scope of this disclosure. Various processes or components may be omitted, substituted, or added as needed in various examples. For example, the described methods may be performed in a different order than described, and individual steps may be added, omitted, or combined. Furthermore, features described with respect to some examples may be combined in some other examples. For example, an apparatus or method may be implemented using any number of aspects set forth herein. Moreover, the scope of this disclosure is intended to cover such apparatuses or methods that utilize other structures, functions, or structures and functions besides those set forth herein, or that utilize other structures, functions, or structures and functions different from those set forth herein. It should be understood that any aspect of this disclosure may be implemented by one or more elements of the claims. The word “exemplary” is used herein to mean “serving as an example, instance, or illustration.” Any aspect described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other aspects.

[0046] The technologies described in this article can be used in various wireless communication technologies, such as 3GPP 5th Generation New Radio (5G NR). 5G NR is an emerging wireless communication technology jointly developed with the 5G Technology Forum (5GTF). NR access (such as 5G NR) can support a variety of wireless communication services, such as enhanced mobile broadband (eMBB) for wide bandwidth (e.g., 80MHz or higher), millimeter wave (mmW) for high carrier frequencies (e.g., 25GHz or higher), massive machine-type communication (mMTC) for non-backward-compatible MTC technologies, and / or mission-critical ultra-reliable low-latency communication (URLLC). These services may include latency and reliability requirements. These services may also have different transmission time intervals (TTI) to meet corresponding quality of service (QoS) requirements. Furthermore, these services can coexist in the same subframe.

[0047] The technologies described in this article can be used in 5G NR wireless networks and radio technologies, as well as other wireless network and radio technologies.

[0048] refer to Figure 1 An example wireless communication network 100 is illustrated. Wireless communication network 100 may be a full-duplex NR system (e.g., a full-duplex 5G network). In the example, a mobile device such as user equipment (UE) 120a has a bandwidth (BW) component 160, which can be configured to adapt the operational BW of UE 120a. Similarly, base station (BS) 110a may include a BW configuration component 170, which can configure UEs such as UE 120a to adapt the operational BW.

[0049] Wireless communication network 100 may include a number of base stations (BS) 110 and other network entities. A BS may be a station communicating with a user equipment (UE). Each BS 110 may provide communication coverage for a specific geographic area. In 3GPP, depending on the context in which the term is used, the term "cell" may refer to the coverage area of ​​a Node B (NB) and / or the NB subsystem serving that coverage area. In NR systems, the terms "cell" and BS, next-generation Node B (gNB or gNodeB), access point (AP), distributed cell (DU), carrier, or transmit / receive point (TRP) are used interchangeably. In some examples, a cell may not necessarily be fixed, and the geographic area of ​​a cell may move depending on the location of a mobile BS. In some examples, BSs may use any suitable transport network to interconnect with each other and / or with one or more BSs or network nodes (not shown) within wireless communication network 100 via various types of backhaul interfaces (such as direct physical connections, wireless connections, virtual networks, etc.).

[0050] Typically, any number of wireless networks can be deployed in a given geographic area. Each wireless network can support a specific Radio Access Technology (RAT) and can operate on one or more frequencies. A RAT can also be referred to as a radio technology, air interface, etc. A frequency can also be referred to as a carrier, subcarrier, channel, tone, subband, etc. Each frequency can support a single RAT in a given geographic area to avoid interference between wireless networks using different RATs. In some cases, NR or 5G RAT networks can be deployed.

[0051] A BS can provide communication coverage for macro cells, pico cells, femto cells, and / or other types of cells. A macro cell can cover a relatively large geographic area (e.g., a radius of several kilometers) and can allow unrestricted access for UEs with service subscriptions. A pico cell can cover a relatively small geographic area and can allow unrestricted access for UEs with service subscriptions. A femto cell can cover a relatively small geographic area (e.g., a home) and can allow restricted access for UEs associated with the femto cell (e.g., UEs in a Closed Subscriber Group (CSG), UEs of users in a home, etc.). A BS used for a macro cell can be referred to as a macro BS. A BS used for a pico cell can be referred to as a pico BS. A BS used for a femto cell can be referred to as a femto BS or a home BS. BS 110a, 110b, and 110c can be macro BSs used for macro cells 102a, 102b, and 102c, respectively. BS 110x can be a pico BS used for pico cell 102x. BS 110y and 110z can be femtoBSs for femtocells 102y and 102z, respectively. A BS can support one or more (e.g., three) cells.

[0052] The wireless communication network 100 may also include a relay station. A relay station is a station that receives data and / or other information transmissions from an upstream station (e.g., a BS or UE) and transmits these transmissions to a downstream station (e.g., a UE or BS). A relay station may also be a UE relaying transmissions for other UEs. Relay station 110r can communicate with BS 110a and UE 120r to facilitate communication between BS 110a and UE 120r. A relay station may also be referred to as a relay BS, relay, etc.

[0053] The wireless communication network 100 can be a heterogeneous network including different types of base stations (BSs), such as macro BSs, pico BSs, femto BSs, relays, etc. These different types of BSs can have different transmit power levels, different coverage areas, and different effects on interference in the wireless communication network 100. For example, a macro BS can have a high transmit power level (e.g., 20 watts), while a pico BS, femto BS, and relay can have a lower transmit power level (e.g., 1 watt).

[0054] The wireless communication network 100 can support synchronous or asynchronous operation. For synchronous operation, the base stations (BSs) can have similar frame timings, and transmissions from different BSs can be approximately time-aligned. For asynchronous operation, the BSs can have different frame timings, and transmissions from different BSs can be time-disaligned. The techniques described herein can be used for both synchronous and asynchronous operation.

[0055] Network controller 130 can be coupled to a group of BSs and provide coordination and control for these BSs. Network controller 130 can communicate with BS 110 via backhaul. BS 110 can also communicate with each other (e.g., directly or indirectly) via wireless or wired backhaul.

[0056] UEs 120 (e.g., 120a, 120b, 120x, 120y, etc.) may be distributed throughout the wireless communication network 100, and each UE may be fixed or mobile. A UE may also be referred to as a mobile device, mobile station, terminal, access terminal, subscriber unit, station, customer premises equipment (CPE), cellular phone, smartphone, personal digital assistant (PDA), wireless modem, wireless communication device, handheld device, laptop computer, cordless phone, wireless local loop (WLL) station, tablet computer, camera, gaming device, netbook, smartbook, ultrabook, appliance, medical device or medical equipment, biometric sensor / device, wearable devices such as smartwatches, smart clothing, smart glasses, smart wristbands, smart jewelry (e.g., smart rings, smart bracelets, etc.), entertainment devices (e.g., music devices, video devices, satellite radios, etc.), vehicle components or sensors, smart meters / sensors, industrial manufacturing equipment, GPS devices, or any other suitable device configured to communicate via wireless or wired media. Some UEs can be considered Machine-Type Communication (MTC) devices or Evolved MTC (eMTC) devices. MTC and eMTC UEs include those capable of communicating with a BS, another device (e.g., a remote device), or other entities, such as robots, drones, remote devices, sensors, meters, monitors, location tags, etc. For example, a wireless node can provide connectivity to or to a network (e.g., a wide area network such as the Internet or cellular networks) via wired or wireless communication links. Some UEs can be considered Internet of Things (IoT) devices, which can be narrowband IoT (NB-IoT) devices.

[0057] Some wireless networks (e.g., LTE) use Orthogonal Frequency Division Multiplexing (OFDM) on the downlink and Single-Carrier Frequency Division Multiplexing (SC-FDM) on the uplink. OFDM and SC-FDM divide the system bandwidth into multiple (K) orthogonal subcarriers, often referred to as tones, frequency bands, etc. Each subcarrier can be modulated with data. Typically, modulation symbols are transmitted using OFDM in the frequency domain and SC-FDM in the time domain. The spacing between adjacent subcarriers can be fixed, and the total number of subcarriers (K) can depend on the system bandwidth. For example, the subcarrier spacing could be 15 kHz, and the minimum resource allocation (called a "resource block" (RB)) could be 12 subcarriers (or 180 kHz). Therefore, for system bandwidths of 1.25, 2.5, 5, 10, or 20 MHz, the nominal Fast Fourier Transform (FFT) size could be equal to 128, 256, 512, 1024, or 2048, respectively. The system bandwidth can also be divided into subbands. For example, a subband can cover 1.08 MHz (e.g., 6 RBs), and for system bandwidths of 1.25, 2.5, 5, 10, or 20 MHz, there can be 1, 2, 4, 8, or 16 subbands, respectively. In LTE, the basic transmission time interval (TTI) or packet duration is a 1 ms subframe. In NR, the subframe is still 1 ms, but the basic TTI is called a slot. A subframe contains a variable number of slots depending on the subcarrier spacing (e.g., 1, 2, 4, 8, 16, ... slots). NR RBs are 12 consecutive frequency subcarriers. NR can support a basic subcarrier spacing of 15 kHz and can define other subcarrier spacings relative to the basic subcarrier spacing, such as 30 kHz, 60 kHz, 120 kHz, 240 kHz, etc. The symbol and slot lengths are proportional to the subcarrier spacing. The CP length also depends on the subcarrier spacing. As described herein, NR can support the transmission of a Position Reference Signal (PRS) in one or more slots.

[0058] NR can use OFDM with CP on both uplink and downlink, and includes support for half-duplex operation using TDD. Beamforming can be supported and beam direction can be dynamically configured. MIMO transmission with precoding can also be supported. In some examples, MIMO configuration in DL can support eight transmit antennas for multi-layer DL transmission with up to eight streams and up to two streams per UE. In some examples, multi-layer transmission with up to two streams per UE can be supported. Aggregation of multiple cells with up to eight serving cells can be supported.

[0059] In some examples, access to the air interface can be scheduled. A scheduling entity (e.g., a BS) allocates resources for communication between some or all devices and equipment within its service area or cell. The scheduling entity can be responsible for scheduling, allocating, reconfiguring, and releasing resources for one or more subordinate entities. That is, for scheduled communication, the subordinate entity utilizes the resources allocated by the scheduling entity. A base station is not the only entity that can act as a scheduling entity. In some examples, a UE can act as a scheduling entity and can schedule resources for one or more subordinate entities (e.g., one or more other UEs), and other UEs can utilize the resources scheduled by that UE for wireless communication. In some examples, a UE can act as a scheduling entity in peer-to-peer (P2P) networks and / or mesh networks. In mesh network examples, in addition to communicating with a scheduling entity, UEs can also communicate directly with each other.

[0060] In some examples, two or more dependent entities (e.g., UEs) can communicate with each other using sidelink signals. Practical applications of such sidelink communication can include public safety, proximity services, UE-to-network relay, vehicle-to-vehicle (V2V) communication, Internet of Things (IoE) communication, IoT communication, mission-critical meshes, and / or various other suitable applications. Typically, a sidelink signal can refer to a signal that transmits communication from one dependent entity (e.g., UE1) to another dependent entity (e.g., UE2) without relaying the communication through a scheduling entity (e.g., UE or BS), even if the scheduling entity may be used for scheduling and / or control purposes. In some examples, licensed spectrum can be used to transmit sidelink signals (unlike wireless LANs that typically use unlicensed spectrum). In one example, a sidelink signal can be configured for full-duplex or half-duplex operation. The positioning frequency layer can be used to facilitate full-duplex and / or half-duplex UE-to-UE transmissions for sidelink positioning applications.

[0061] exist Figure 1 In the diagram, a solid line with a double arrowhead represents the desired transmission between the UE and the serving BS, which is the BS designated to serve the UE on the downlink and / or uplink. A thin dashed line with a double arrowhead represents potential interference transmission between the UE and the BS.

[0062] refer to Figure 2 This shows (for example, in) Figure 1 Example components of BS 110 and UE 120 in the wireless communication network 100. Components including antenna 252, processors 266, 258, 264 and / or controller / processor 280 of UE 120 and antenna 234, processors 220, 230, 238 and / or controller / processor 240 of BS 110 can be used to perform the various techniques and methods described herein.

[0063] At BS 110, the transmitting processor 220 can receive data from data source 212 and control information from controller / processor 240. For LTE systems, the control information can be used for the Physical Broadcast Channel (PBCH), Physical Control Format Indicator Channel (PCFICH), Physical Hybrid ARQ Indicator Channel (PHICH), Physical Downlink Control Channel (PDCCH), Group Common PDCCH (GC PDCCH), etc. Data can be used for the Physical Downlink Shared Channel (PDSCH), etc. The processor 220 can process (e.g., encode and symbol map) the data and control information to obtain data symbols and control symbols respectively. The transmitting processor 220 can also generate reference symbols, such as those for the Primary Synchronization Signal (PSS), Secondary Synchronization Signal (SSS), Cell-Specific Reference Signal (CRS), and Positioning Reference Signal (PRS). For NR systems, control information can include logical and transport channels, including Broadcast Control Channel (BCCH), Paging Control Channel (PCCH), Common Control Channel (CCCH), Dedicated Control Channel (DCCH), Dedicated Traffic Channel (DTCH), Broadcast Channel (BCH), Paging Channel (PCH), and Downlink Shared Channel (DL-SCH). Physical channels in a 5G NR system can include PBCH, PDCCH, and PDSCH. Physical signals can include Demodulation Reference Signal (DM-RS), Phase Tracking Reference Signal (PT-RS), Channel State Information Reference Signal (CSI-RS), Primary and Secondary Synchronization Signals (PSS / SSS), and Downlink PRS (DL PRS).

[0064] The transmit (TX) multiple-input multiple-output (MIMO) processor 230 can perform spatial processing (e.g., precoding, if applicable) on data symbols, control symbols, and / or reference symbols, and can provide output symbol streams to modulators (MODs) 232a-232t. Each modulator 232 can process its corresponding output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each modulator can further process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a downlink signal. The downlink signal from modulators 232a-232t can be transmitted via antennas 234a-234t, respectively.

[0065] At UE 120, antennas 252a-252r can receive downlink signals from BS 110 and can provide the received signals to demodulators (DEMODs) in transceivers 254a-254r respectively. Each demodulator 254 can adjust (e.g., filter, amplify, downconvert, and digitize) the corresponding received signal to obtain input samples. Each demodulator can further process the input samples (e.g., for OFDM, etc.) to obtain received symbols. MIMO detector 256 can obtain received symbols from all demodulators 254a-254r, perform MIMO detection on the received symbols (if applicable), and provide the detected symbols. Receiver processor 258 can process (e.g., demodulate, deinterleave, and decode) the detected symbols, provide data for decoding for UE 120 to data sink 260, and provide decoding control information to controller / processor 280.

[0066] On the uplink, at UE 120, the transmitting processor 264 can receive and process data from data source 262 (e.g., for the Physical Uplink Shared Channel (PUSCH)) and control information from controller / processor 280 (e.g., for the Physical Uplink Control Channel (PUCCH)). The transmitting processor 264 can also generate reference symbols for reference signals (e.g., for Sounding Reference Signals (SRS)). Symbols from the transmitting processor 264 can be pre-encoded by the TX MIMO processor 266 (if applicable), further processed by demodulators in transceivers 254a-254r (e.g., for SC-FDM, etc.), and transmitted to base station 110. At BS 110, uplink signals from UE 120 can be received by antenna 234, processed by modulator 232, detected by MIMO detector 236 (if applicable), and further processed by receiving processor 238 to obtain decoded data and control information transmitted by UE 120. The receiver processor 238 can provide the decoded data to the data sink 239 and the decoded control information to the controller / processor 240.

[0067] Controllers / processors 240 and 280 can respectively direct operations at BS 110 and UE 120. Controller / processor 240 and / or other processors and modules at BS 110 can execute or direct the operation of processing for the techniques described herein. Memory 242 and 282 can respectively store data and program code for BS 110 and UE 120. Scheduler 244 can schedule the UE for data transmission on downlink and / or uplink.

[0068] 5G NR wireless networks promise to provide ultra-high data rates and support a wide range of application scenarios. Wireless full-duplex (FD) communication is an emerging technology that, theoretically, can double link capacity compared to half-duplex (HD) communication. The main idea behind wireless full-duplex communication is to enable radio network nodes to simultaneously transmit and receive on the same frequency band within the same time slot. This contrasts with traditional half-duplex operation, where transmission and reception differ in time or frequency. Wireless communication network 100 can support various FD communication modes.

[0069] For further reference Figure 1 and Figure 2 In case of reference Figure 3A Illustration 300 shows a full-duplex communication mode with a full-duplex base station and a half-duplex UE. The illustration includes an FD BS 302, an HD BS 304, a first HD UE 306, and a second HD UE 308. The FD BS 302 can communicate simultaneously with both HD UEs 306 and 308 in both the UL and DL using the same radio resources. For example, the FD BS 302 can communicate with the first HD UE 306 via downlink 310 and with the second HD UE 308 via uplink 312. The FD BS 302 may be susceptible to self-interference 302a from its downlink to uplink operation and interference 312 from other gNBs such as the HD BS 304. The first HD UE 306 may be susceptible to interference 314 from the HDBS 304 and interference 316 from the second HD UE 308. Typically, self-interference 302a (or transmitter leakage) refers to the signal that leaks from the device transmitter to its own receiver.

[0070] refer to Figure 3B Illustration 330 illustrates another full-duplex communication mode with a full-duplex base station and a full-duplex UE. Illustration 330 includes FD BS 302, HD BS 304, FD UE 336, and HD UE 308. FD BS 302 and FD UE 336 are configured to communicate simultaneously using the same radio resources via UL 334 and DL 332. HD BS 304 communicates with HDUE 308 via DL 338. During communication, FD UE 336 may be susceptible to self-interference 336a and interference 338a from other gNBs such as HD BS 304. FD UE 336 may also be susceptible to interference transmitted from HD UE 308.

[0071] refer to Figure 3CFigure 350 illustrates another full-duplex communication mode for a full-duplex UE. Figure 350 includes a first HD BS 352, a second HD BS 354, an FD UE 336, and an HD UE 308. FD UE 336 is configured to communicate simultaneously with multiple transmit-receive points (e.g., multiple BSs) in the UL and DL using the same radio resources. For example, FD UE 336 can simultaneously communicate with the first HD BS 352 via UL 334 and with the second HD BS 354 via DL 356. FD UE 336 may be susceptible to self-interference 336a from UL to DL operation. In the example, both UE1 336 and UE2 308 can be configured as FD UEs and are capable of full-duplex communication via a device-to-device (D2D) side link (e.g., PC5).

[0072] In addition to supporting various FD communication modes (also referred to as deployments in this document), wireless communication systems can also support various types of FD operations. For example, in-band full-duplex (IBFD) is a type of FD operation in which a device can simultaneously transmit and receive on the same frequency resources. Figure 4A As shown in 410, in one respect, DL and UL can completely share the same IBFD time / frequency resources (e.g., DL and UL allocations within IBFD time / frequency resources can completely overlap). Figure 4A As shown in 420, in one respect, DL and UL can partially share the same IBFD time / frequency resources (e.g., the allocation of DL and UL within IBFD time / frequency resources can partially overlap).

[0073] Subband FDD (also known as flexible duplex) is another type of FD operation where devices can transmit and receive simultaneously on different frequency resources. (Reference) Figure 4B As shown in Figure 430, the DL resource can be separated from the UL resource in the frequency domain via a guard band 432. This operating mode reduces the self-interference cancellation requirements of the FD device due to lower leakage.

[0074] For further reference Figures 1 to 4B In case of reference Figure 5 Example spectrum 500 for full-duplex base stations and half-duplex mobile devices is shown. In some respects, flexible DL / UL operation can exist both temporally (across time slots and within time slots) and across multiple UEs. Figure 5 Example usage of time / frequency resources for FD BS 502 (e.g., gNB) and multiple HD UEs (e.g., UE1, UE2, and UE3) is shown. As shown in spectrum 500, simultaneous PDSCH and PUSCH authorizations can exist for the same subframe / slot (for different UEs).

[0075] For further reference Figures 1 to 5 In case of reference Figure 6 Example spectrum 600 for full-duplex base stations and full-duplex mobile devices is shown. Figure 6 Another example of the use of time / frequency resources for FD BS 602 and FD UE is shown. As shown in spectrum 600, with Figure 5 Compared to spectrum 500, simultaneous PDSCH and PUSCH grants can exist for the same UE (e.g., UE2) and / or different UEs in the same subframe / slot. For example, for an FD UE (e.g., UE2), simultaneous UL and DL grants can exist.

[0076] refer to Figure 7A and Figure 7B An exemplary DL-PRS resource set is illustrated. Typically, a DL-PRS resource set is a collection of PRS resources spanning a single base station (e.g., a TRP) that share the same period, a common quiescent pattern configuration, and the same repetition factor across time slots. A first DL-PRS resource set 702 comprises four resources with a repetition factor of 4 and a time slot equal to one time slot. A second DL-PRS resource set 704 comprises four resources with a repetition factor of 4 and a time slot equal to four time slots. The repetition factor indicates the number of times each PRS resource is repeated in each individual instance of the PRS resource set (e.g., a value of 1, 2, 4, 6, 8, 16, or 32). The time slot represents the time slot-based offset between two repeated instances of DL PRS resources corresponding to the same PRS resource ID within a single instance of the DL PRS resource set (e.g., a value of 1, 2, 4, 8, 16, or 32). The duration spanned by a DL PRS resource set containing repeated DL PRS resources does not exceed a PRS period. Repetition of DL PRS resources allows the receiver beam to sweep across the repeat and combines RF gain to increase coverage. Repetition can also achieve in-instance silence.

[0077] refer to Figure 8 This illustrates example subframes and time slot formats used for positioning reference signal transmission. The example subframes and time slot formats are included in... Figure 7A and Figure 7B The DL-PRS resource cluster is depicted in the text. Figure 8The subframe and time slot formats described are examples, not limitations, and include comb-2 802 with a 2-symbol format, comb-4 804 with a 4-symbol format, comb-2 806 with a 12-symbol format, comb-4 808 with a 12-symbol format, comb-6 810 with a 6-symbol format, comb-12 812 with a 12-symbol format, comb-2 814 with a 6-symbol format, and comb-6 816 with a 12-symbol format. Generally, a subframe can comprise 14 symbol periods, indexed from 0 to 13. The subframe and time slot formats can be used on the Physical Broadcast Channel (PBCH). Typically, a base station can transmit PRS from antenna port 6 on one or more time slots in each subframe configured for PRS transmission. The base station can avoid transmitting PRS on resource elements allocated to the PBCH, Primary Synchronization Signal (PSS), or Secondary Synchronization Signal (SSS), regardless of their antenna ports. Cells can generate reference symbols for PRS based on cell ID, symbol periodicity index, and time slot index. Typically, UEs can distinguish PRS from different cells.

[0078] The base station can transmit DL PRS on a specific PRS bandwidth that can be configured by a higher layer. The base station can also transmit PRS on subcarriers spaced across the PRS bandwidth. The base station can also base PRS on a PRS period T, etc. PRS Subframe offset Δ PRS and PRS duration N PRS The parameters are used to send the PRS. The PRS period is the period during which the PRS is sent. The PRS period can be, for example, 160, 320, 640, or 1280 ms. The subframe offset indicates the specific subframe from which the PRS is sent. The PRS duration indicates the number of consecutive subframes from which the PRS is sent in each PRS transmission period (PRS timing). The PRS duration can be, for example, 1, 2, 4, or 6 ms.

[0079] PRS period T PRS and subframe offset Δ PRS Index I can be configured via PRS PRS To transmit. The PRS configuration index and PRS duration can be configured independently by higher layers. A set of N that sends the PRS... PRS Consecutive subframes can be referred to as PRS opportunities. Each PRS opportunity can be enabled or silenced; for example, a UE can apply a silence bit to each cell. As will be discussed, silence patterns can be applied to PRS transmissions in full-duplex time slots. A PRS resource set is a collection of PRS resources across base stations that have the same period, a common silence pattern configuration, and the same repetition factor across time slots (e.g., 1, 2, 4, 6, 8, 16, 32 time slots).

[0080] In the example, the positioning frequency layer can be a collection of PRS resource sets spanning one or more base stations. Positioning frequency layers can have the same subcarrier spacing (SCS) and cyclic prefix (CP) type, the same A point, the same DL PRS bandwidth value, the same starting PRB, and the same comb size value. For the PRS, the parameter set supported by the PDSCH is supported.

[0081] refer to Figure 9 Example spectrum 900 for subband full-duplex positioning reference signal (PRS) is shown. Spectrum 900 is an example use of time / frequency resources for an FD UE, such as full-duplex spectrum 500, 600 where PRS resources are added. For example, spectrum 900 includes a first DL PRS transmission 902, a second DL PRS transmission 904, and a third DL PRS transmission 906. The first DL PRS transmission 902 occurs during the downlink area and does not overlap with the uplink area (e.g., PUSCH). The second DL PRS transmission 904 overlaps with the uplink area. The third DL PRS transmission 906 occurs in a full-duplex time slot but is not considered to overlap with the uplink area because it only occupies a portion of the DL bandwidth.

[0082] In the example, BS 110 or other resources in the wireless communication network 100 can be configured with PRS resources based on whether the time slot is in a half-duplex (HD) or full-duplex (FD) zone. The positioning frequency layer can be extended by including fields or other information elements (IEs) in the definition of the positioning frequency layer to indicate information about the time slot category (HD or FD). The positioning frequency layer can include a set of PRS resources of the same type (HD or FD) spanning one or more base stations (e.g., TRPs). The network can configure PRS separately for FD operation and HD operation. For example, one positioning frequency layer can be configured for FD time slots, and another positioning frequency layer can be provided for HD time slots.

[0083] PRS resources can be configured across wide bandwidths and can span both HD and FD zones. For example, a second DL PRS transmission 904 spans the DL and UL portions of a time slot. In another example, PRS resources can be configured in a smaller bandwidth, such as a third DL PRS transmission 906 separated from the UL portion by a guard band. In this example, an FD UE can be configured to process DL PRS transmissions or portions of DL PRS transmissions that do not conflict with the UL subband. For example, an FD UE can process a first DL PRS transmission 902, a second DL PRS transmission 904, and a third DL PRS transmission 906, excluding any conflicting subband portions (e.g., in the second DL PRS transmission 904). Processing the second DL PRS transmission 904 while excluding conflicting subband portions will produce reasonable correlation peaks and enable location estimation. In this example, the processed portion of the second DL PRS transmission 904 can be correlated with the first DL PRS transmission 902 to generate correlation peaks.

[0084] refer to Figure 10 An example spectrum 1000 for full-duplex Position Reference Signal (PRS) transmission is shown. In this example, to avoid bandwidth portion (BWP) handover delay, DL PRS transmissions can be configured and processed within an indicated resource bandwidth (BW) within the active BWP. The active DL BWP 1001 can span the active UL BWP 1006. A first resource BW 1002 and a second resource BW 1004 can be defined within the active DL BWP 1001. The second resource BW 1004 includes a disjoint set of frequency resources across the DL BWP 1001 (i.e., it is discontinuous throughout the DL BWP 1001). The second resource BW 1004 includes frequencies outside the active UL BWP 1006. Resources BW 1002 and 1004 can be configured via Radio Resource Control (RRC) signaling, and the indication of the resource BWs can be dynamic (e.g., based on downlink control information (DCI)). The first resource BW 1002 includes a first DL PRS transmission 1012, and a portion of the second resource BW 1004 includes a second DL PRS transmission 1008.

[0085] In the example, the UE can be configured based on its capabilities as an HD UE or an FD UE. An HD UE can be configured to handle the first DL PRS transmission 1012 and skip the second DL PRS reception / processing (i.e., PRS in full-duplex). The performance of an FD UE can vary depending on the type of full-duplex operation. In the example, Figure 10An example of duplex operation is shown, where an active UL BWP 1006 can create partial overlap between UL and DL resource BW. In the example, DL PRS transmissions can be configured to span the entire DL BWP 1001 and thus overlap with the UL BWP 1006. In another example, as... Figure 10 As depicted, the second DL PRS transmission 1008 is configured only within a portion of DL BWP 1001 and therefore does not overlap with UL BWP 1006. The remaining portion of the time slot occupied by the second DL PRS transmission 1008 can be used for PDSCH or other DL resources.

[0086] For further reference Figures 1 to 10 In case of reference Figure 11A The diagram illustrates example beamwidths associated with HD and FD PRS transmissions. A base station (BS) 1002 (such as BS 110a) includes multiple antenna structures 1112, each comprising one or more antenna panels 1114a-b, each containing multiple antenna elements. In HD operation, BS 1002 can utilize antenna panels 1114a-b exclusively for transmission or reception. Increasing the number of antenna elements used for PRS transmission allows for increased beamforming and a narrower beamwidth. Conversely, in FD operation, only a portion of the antenna elements in one or more of panels 1114a-b are used for transmission, while the remaining antenna elements are used for reception. This is often referred to as split-panel operation. As a result, BS 1102 will have constraints on degrees of freedom and reduced beamforming capabilities. The branching of antenna elements used for the transmit and receive chains during full-duplex operation also affects the beamforming capabilities of the mobile device.

[0087] In operation, when BS 1102 and UE 1104 are operating in HD mode, BS 1102 can generate a DL PRS transmission with a first beamwidth of 1106. UE 1104 is... Figure 1Example of UE 120. PRS measurement information (e.g., timing information) can be used to estimate the range 1110 between BS 1102 and UE 1104. The location of UE 1104 can be estimated within the intersection of the first beamwidth 1106 and the estimated range 1110. The corresponding angle of departure (AoD) and angle of arrival (AoA) measurements can also be based on the first beamwidth 1106. When BS 1102 is in FD mode, the DL PRS transmission can have a second beamwidth 1108 due to the reduction of transmit antenna elements in antenna panels 1114a-b. As depicted, the second beamwidth 1108 is wider than the first beamwidth 1106, and the corresponding location estimation of UE 1104 is less accurate. The wider beamwidth also affects the corresponding AoD and AoA measurements. Furthermore, self-interference on UE1104 caused by the simultaneous reception of DL PRS transmissions from a base station (e.g., BS 1102) and UL transmissions may further reduce the accuracy of the obtained location estimation. DL PRS transmissions in FD mode may negatively impact the accuracy of the location estimation for UE1104 and may therefore be insufficient for some location applications.

[0088] The inaccuracies associated with positioning estimation in FD time slots may be a combination of SNR issues based on a reduced number of transmit antennas (e.g., wider beamwidth) and self-interference on the receiving UE actively communicating via the UL BWP. Self-interference can be mitigated by a sufficient guard band between the DL BWP and the UL BWP. Therefore, positioning estimation based on transmissions in FD time slots with a large guard band can be more accurate than positioning generated in FD time slots with a smaller guard band.

[0089] In an embodiment, inaccuracies associated with FD PRS measurements can be mitigated by eliminating support for DL ​​PRS transmissions in FD time slots. In the example, a PRS silencing style can be configured to silence DL PRS transmissions in FD time slots. That is, referring to... Figure 9 The PRS resource set can include a silence style to silence the second DL PRS transmission 904 and the third DL PRS transmission 906 because they are in the FD timeslot. In another example, only DL PRS transmissions that overlap with the UL area in the FD timeslot can be silenced (e.g., only the second DL PRS transmission 904 is silenced). The silence style can also be configured to minimize the effects of self-interference on BS 1102 and UE 1104 caused by DL PRS transmissions.

[0090] In embodiments, reduced accuracy associated with positioning estimates obtained during the FD time slot can be considered and reported. For example, positioning accuracy requirements can be defined for each antenna configuration at BS 1102 and UE 1104, where AoA / AoD accuracy requirements will not apply to the FD time slot. In the example, the AoA / AoD accuracy requirements can differ for measurements obtained in the FD and HD time slots (e.g., with separate tables or accuracy parameters). UE 1104 and / or BS 1102 can report whether measurements were obtained using the FD time slot (or during other split antenna panel operations that may affect beamforming and corresponding positioning accuracy). Network server ( Figure 11A (Not shown in the image) The reported information can be used to determine whether the corresponding positioning estimate meets the required accuracy. For example, the E911 procedure can exclude positioning estimates based on such FD measurements.

[0091] In an embodiment, if the location estimation is based on measurements taken during the FD time slot, UE 1104 or BS 1102 can be configured to report whether DL PRS transmissions overlap with active UL transmissions from UE 1104. For example, refer to Figure 10 If a DL PRS transmission occupies the entire DL BWP 1001 while the UE is transmitting in the UL BWP 1006 simultaneously, the power of the DL PRS transmission will overlap with the UL transmission. In this case, the UE 1104 can be configured to generate a bitmap in the time domain with the same length as the DL PRS transmission, where each bit indicates whether there is overlap with the UL symbol. This bitmap can be included in a message reporting PRS measurements. In the example, the UE 1104 can report an overlap at a certain point during the DL PRS transmission using a flag (e.g., a bit) in the PRS measurement message. In the example, the DL PRS transmission can be included in a DL BWP separated from the UL BWP by a sufficient frequency gap (i.e., a guard band). The frequency gap can be sufficient to reduce the self-interference on the UE 1104 caused when the UE 1104 transmits while receiving the DL PRS transmission.

[0092] For further reference Figure 11A In case of reference Figure 11B This illustrates an example location message flow between base station 1102 and a mobile device (i.e., UE 1104). Base station 1102 may be configured to communicate with a network such as a 5G NR network ( Figure 11BThe gNB (not shown) communicates with a communication network. This communication network may include one or more servers, such as a Location Management Function (LMF) configured to communicate with BS 1102 and UE 1104. In the example, the LMF may communicate with BS 1102 using a new radio positioning protocol A (which may be referred to as NPPa or NRPPa) as defined in 3GPP Technical Specification (TS) 38.455. NRPPa may be the same as, similar to, or an extension of the LTE Positioning Protocol A (LPPa) as defined in 3GPP TS 36.455, where NRPPa messages are transmitted between BS 1102 and the LMF. In the example, the LMF and UE 1104 may communicate using the LTE Positioning Protocol (LPP) as defined in 3GPP TS 36.355. The LMF and UE 1104 may also, or alternatively, communicate using a new radio positioning protocol (which may be referred to as NPP or NRPP) that is the same as, similar to, or an extension of LPP. LPP and / or NPP messages can be transmitted between UE 1104 and LMF via serving BS 1102. For example, LPP and / or NPP messages can be transmitted between LMF and other network servers such as Access and Mobility Management Functions (AMF) using the 5G Location Services Application Protocol (LCS AP), and between AMF and UE 1104 using the 5G Non-Access Stratum (NAS) protocol. Other messages and protocols can also be used for communication between UE 1104, BS 1102, and / or the communication network.

[0093] LPP or NPP messages sent from the communication network to UE 1104 via BS 1102 can instruct UE 1104 to perform various actions according to desired functionality. For example, a location request message 1120 with accuracy requirements can instruct UE 1104 to obtain one or more measurement parameters (e.g., beam ID, beamwidth, average angle, RSTD, RSRP, RSRQ measurement, timeslot duplex configuration) of DL PRS transmitted in a specific cell supported by one or more base stations (e.g., BS 1102, BS110a-c, etc.). The location request message 1120 with accuracy requirements may or may not include an indication of accuracy requirements. In one example, due to the associated beamwidth and self-interference issues described previously, accuracy requirements may exclude the use of DL PRS in FD timeslots. In another example, accuracy requirements may allow the use of DL PRS in FD timeslots, provided that sufficient protection is provided to reduce inaccuracies due to self-interference. In the example, the location request message 1120 may not include an accuracy requirement (or an indication of minimum requirements) that would allow location estimation based on DL PRS measurements in the FD time slot.

[0094] At stage 1122, UE 1104 is configured to perform PRS measurements based on accuracy requirements (or not required). For example, a weather application may only require general location of the mobile device (e.g., low level of accuracy), and therefore a location estimate based on DL PRS measurements in FD time slots is sufficient. In another example, location-based service searches (i.e., finding nearby restaurants) may require a moderate level of accuracy, which can be met by a location estimate based on DL PRS measurements in FD time slots with a sufficiently large guard band (i.e., to reduce the effects of self-interference). Location-sensitive applications, such as emergency locations, may require high accuracy, and therefore exclude the use of DL PRS measurements in FD time slots. In such examples, UE 1104 may utilize DL PRS measurements in HD time slots (e.g., first DL PRS transmissions 902, 1012) or obtain estimated location via other terrestrial or satellite-based technologies. Other accuracy requirements can be defined. For example, FD and HD operations may have separate tables to define the required accuracy requirements for RSTD, OTDOA, AoA, and AoD.

[0095] UE 1104 can be configured to provide the PRS measurements obtained in phase 1122 back to the communication network via BS 1102 in PRS measurement message 1124. For example, UE 1104 can send the measurement parameters back to BS 1102 via wireless and / or wired communication (e.g., LPP or NPP messages (e.g., within a 5G NAS message)). In this example, BS 1102 can be configured to report to the LMF that the measurement was performed using FD or other split panel operations. In this example, UE 1104 can be configured to calculate a location estimate based on the PRS measurements and provide the estimated location in PRS measurement message 1124.

[0096] In the example, UE 1104 can be configured to provide optional timeslot information to inform the LMF PRS measurement that it is obtained from a DL PRS transmission that overlaps with an active UL transmission from UE 1104. In one example, the timeslot information can be a bitmap of the same length as the PRS in the time domain. Each bit can indicate whether it overlaps with a UL symbol. In another example, the timeslot information can be a single bit (or other flag variable) that typically indicates whether there is overlap. A single bit can be used to reduce signaling overhead. In yet another example, if the active UL transmission has sufficient frequency gaps (e.g., guard bands) with the DL PRS transmission, the timeslot information may not be included in the PRS measurement message 1124. Timeslot information can be useful in scenarios where BS 1102 is unaware whether UE 1104 is actually performing an active UL transmission (such as RACH or configured authorization).

[0097] For further reference Figures 1 to 11B In case of reference Figure 12 Method 1200 for providing a silent style of positioning reference signal includes the stages shown. However, method 1200 is merely an example and not a limitation. Method 1200 can be modified, for example, by adding, removing, rearranging, combining, performing simultaneously, and / or dividing a single stage into multiple stages. For example, stage 1206 is optional because a silent configuration may not be provided to the mobile device.

[0098] In stage 1202, the method includes determining a full-duplex scheme comprising multiple full-duplex time slots. BS1102 is a component for determining the full-duplex scheme. The communication network can be configured to include a full-duplex scheme comprising frames having time slots configured for simultaneous DL and UL operation. BS1102 can be configured to align transmit and receive chains based on a full-duplex time slot schedule based on the full-duplex scheme. Full-duplex time slots, such as... Figure 9 and Figure 10 The description includes the time periods during which BS 1102 can simultaneously transmit on DL resources and receive on UL resources.

[0099] In phase 1204, the method includes determining a location reference signal silence pattern based at least in part on full-duplex time slots. BS 1102 is the component used to determine the location reference signal silence pattern. The location frequency layer may include a set of PRS resource sets. Typically, a DL-PRS resource set is a set of PRS resources across a base station (e.g., TRP) that have the same period, a common silence pattern configuration, and the same repetition factor across time slots. BS 1102 or other network servers can be configured to align the silence pattern with the full-duplex time slots such that no DL PRS transmissions are sent during the scheduled full-duplex time slots. For example, the output power of DL PRS transmissions is significantly reduced during full-duplex time slots. Typically, silencing DL PRS transmissions provides the advantage of reducing self-interference on BS 1102 and can therefore contribute to the SNR of the received UL signal. In the example, full-duplex time slots including sufficient guard bands (e.g., sufficient to reduce self-interference) may not be silenced.

[0100] In stage 1206, the method optionally includes providing a positioning reference signal silence pattern to the mobile device. BS1102 is a component for providing the silence pattern. In the example, parameters in the PRS resource set (including the silence pattern) can be provided to UE 1104 via RRC signaling or other messaging protocols. UE 1104 can also receive a time slot schedule associated with a full-duplex scheme. In the example, UE 1104 can explicitly know the silence pattern based on the PRS resource information. In another example, UE 1104 can implicitly infer that DL PRS is silenced in a full-duplex time slot and that no UL PRS should be transmitted in a full-duplex time slot.

[0101] For further reference Figure 10 In case of reference Figure 13 The method 1300 for silently locating a reference signal based on full-duplex scheduling includes the stages shown. However, method 1300 is merely an example and not a limitation. Method 1300 can be modified, for example, by adding, removing, rearranging, combining, performing simultaneously, and / or dividing a single stage into multiple stages.

[0102] In phase 1302, the method includes determining a full-duplex schedule comprising multiple full-duplex time slots. UE 1104 is the component used to determine the full-duplex schedule. UE 1104 may receive time slot information associated with the full-duplex scheme from a base station (e.g., BS 1102) via RRC signaling or other messaging protocols. The time slot information may include indications of which time slots are configured for full-duplex operation.

[0103] In stage 1304, the method includes silencing a reference signal at least partially based on a full-duplex time slot. UE 1104 is the component for receiving silencing PRS transmissions. BS 1102 can be configured to provide DL PRS transmissions for half-duplex time slots (e.g., a first DL PRS transmission 902) and full-duplex time slots (e.g., a second DL PRS transmission 904 and a third DL PRS transmission 906). In the example, UE 1104 can silence (i.e., not attempt to receive) DL PRS transmissions in a full-duplex time slot (e.g., UE 1104 will not process the second DL PRS transmission 904 and the third DL PRS transmission 906). In the example, UE 1104 can be configured to silence only DL PRS transmissions that occur when UE 1104 itself transmits in a full-duplex time slot. That is, if UE 1104 does not transmit during a full-duplex time slot, UE 1104 can be configured to receive DL PRS transmissions in that time slot.

[0104] For further reference Figure 11B In case of reference Figure 14Method 1400 for providing location information to a web server includes the stages shown. However, method 1400 is merely an example and not a limitation. Method 1400 can be modified, for example, by adding, removing, rearranging, combining, performing simultaneously, and / or dividing a single stage into multiple stages.

[0105] In stage 1402, the method includes determining location information of the mobile device. BS 1102 is a component for determining the location information. BS 1102 can be configured to receive PRS measurement information via PRS measurement message 1124. PRS measurement message 1124 may include an indication of whether the PRS measurement was obtained in a full-duplex time slot or through other split-panel operations.

[0106] At stage 1404, the method includes determining a duplex mode configuration associated with the positioning information. BS1102 is a component for determining duplex mode operation. BS1102 can parse from or otherwise obtain data indicating that the PRS measurement was obtained in a full-duplex time slot from PRS measurement message 1124. For example, PRS measurement message 1124 may include beam ID and / or timing information associated with a half-duplex or full-duplex time slot. In an example, PRS measurement message 1124 may include optional time slot information indicating that the DL PRS measurement overlaps with a UL transmission. In an example, UE 1104 may be configured to generate a bitmap in the time domain with the same length as the DL PRS transmission, where each bit indicates whether there is overlap with a UL symbol. The bitmap may be included in PRS measurement message 1124. In another example, UE 1104 may report an overlap at a point during the DL PRS transmission using a flag (e.g., a bit) in PRS measurement message 1124.

[0107] In phase 1406, the method includes providing location information and an indication of duplex mode configuration to the server. BS1102 is a component for providing the location information and indication to the server. BS1102 can provide received PRS measurement information, along with additional fields, bits, or other information elements (IEs), to a networking server such as LMF or AMF. The additional IEs can be configured to indicate to the server that the PRS measurement information is based on DL PRS measurements obtained by UE 1104 in a full-duplex time slot. In the example, the PRS measurement information (including any time slot information) and the additional IEs can be included in an LPP or NPP message (e.g., within a 5G NAS message).

[0108] For further reference Figure 11B In case of reference Figure 15AMethod 1500 for receiving location information from a mobile device includes the stages shown. However, method 1500 is merely an example and not a limitation. Method 1500 can be modified, for example, by adding, removing, rearranging, combining, performing simultaneously, and / or dividing a single stage into multiple stages.

[0109] In stage 1502, the method includes providing a location request to the mobile device. BS 1102 is a component for providing the location request. BS 1102 can be configured to send an LPP or NPP message to UE 1104. For example, a location request message 1120 with accuracy requirements can instruct UE 1104 to obtain one or more measurement parameters (e.g., beam ID, beamwidth, average angle, RSTD, RSRP, RSRQ measurement, time slot duplex configuration) of DL PRS transmitted in a specific cell supported by one or more base stations (e.g., BS 1102, BS 110a-c, etc.). The location request message 1120 with accuracy requirements can include an indication of accuracy requirements. Accuracy requirements can allow or exclude the use of DL PRS in full-duplex time slots. In the example, accuracy requirements can allow the use of DL PRS in full-duplex time slots, provided that sufficient protection reduces inaccuracies due to self-interference.

[0110] In phase 1504, the method includes receiving location information and timeslot information from the mobile device. BS 1102 is the component for receiving the location information. UE 1104 can be configured to provide location information, such as PRS measurements, to BS 1102 in a PRS measurement message 1124. For example, UE 1104 can send measurement parameters to BS 1102 in an LPP or NPP message (e.g., within a 5G NAS message). In this example, UE 1104 can be configured to calculate a location estimate based on the PRS measurement, and the location information can be an estimated location calculated by the UE. If the PRS measurement is obtained from a DLPRS transmission that overlaps with an active UL transmission from UE 1104, UE 1104 can provide optional timeslot information. The timeslot information can be a bitmap of the same length as the PRS in the time domain, or a single bit (or other flag variable) indicating the existence of overlap.

[0111] For further reference Figure 11B In case of reference Figure 15B Method 1520 for providing location information to a base station includes the stages shown. However, method 1520 is merely an example and not a limitation. Method 1520 can be modified, for example, by adding, removing, rearranging, combining, performing simultaneously, and / or dividing a single stage into multiple stages. For example, stage 1530 is optional because time slot information may not be required if DL and UL transmissions do not overlap.

[0112] In phase 1522, the method includes receiving a location request and an accuracy requirement from a base station. UE 1104 is a component for receiving the location request. UE 1104 may receive a location request message 1120 with an accuracy requirement in an LPP and NPP message sent from BS 1102. In the example, the location request may include auxiliary data to enable UE 1104 to obtain one or more measurement parameters (e.g., beam ID, beamwidth, average angle, RSTD, RSRP, RSRQ measurement, timeslot duplex configuration) of DL PRS transmitted within a specific cell supported by one or more base stations (e.g., BS 1102, BS 110a-c, etc.). The accuracy requirement may be based on application requirements associated with the location request. For example, a high level of accuracy may be applied when a specific location is requested (e.g., within 200m), a medium level of accuracy may be applied when a general location is requested (e.g., within 1000m), and a low level of accuracy may be applied when a general location is requested (e.g., within 2000m). The accuracy requirement is merely an example and not a limitation, as the specific distance can vary depending on the capabilities of the communication network.

[0113] In stage 1524, the method includes determining one or more positioning reference signal transmissions based on accuracy requirements. UE1104 is a component used to determine the positioning reference signal transmissions. First DL PRS transmission 902, second DL PRS transmission 904, third DL PRS transmission 906, first DL PRS transmission 1012, and second DL PRS transmission 1008 are examples of positioning reference signal transmissions. High accuracy requirements may exclude the use of DL PRS transmissions in full-duplex time slots because precise location determination of UE1104 may not be possible due to the increased beamwidth and self-interference associated with full-duplex operation. Medium-level accuracy requirements may be based on DL PRS transmissions in full-duplex time slots, provided there is sufficient frequency spacing (e.g., guard band) between the DL and UL BWPs in the full-duplex time slot. Frequency separation can reduce self-interference and improve the accuracy of positioning estimation. Low-level accuracy requirements may be based on DL PRS transmissions in full-duplex time slots, regardless of the size of the guard band. For example, in-band full-duplex time slots may include overlapping DL and UL transmissions. UE 1104 can be configured to obtain positioning measurements using half-duplex or full-duplex time slots based on accuracy requirements. In the example, auxiliary data in the positioning request may include an indication of the time slots that UE 1104 will use to obtain positioning measurements.

[0114] In phase 1526, the method includes obtaining positioning measurement information based on the one or more positioning reference signals. UE 1104 is a component for obtaining the positioning measurement information. UE 1104 is configured to perform PRS measurements using the positioning reference time slot determined in phase 1524. Positioning measurements may include RSSI, RTT, AOA, AOD, TOA, RSTD, RSRQ, and / or RSRQ information based on signals from BS 1102 and neighboring stations.

[0115] In phase 1528, the method includes providing location measurement information to the base station. UE 1104 is a component for providing the location measurement information. UE 1104 can be configured to provide the PRS measurements obtained in phase 1526 back to the communication network via BS 1102 in PRS measurement message 1124. For example, UE 1104 can send measurement parameters in an LPP or NPP message (e.g., within a 5G NAS message). In an example, UE 1104 can be configured to report that the PRS measurements were obtained using full-duplex or other split-panel operations. In an example, UE 1104 can be configured to calculate a location estimate based on the PRS measurements and provide the estimated location in PRS measurement message 1124.

[0116] In phase 1530, the method may optionally include providing time slot information to the base station. UE 1104 is the component for providing the time slot information. UE 1104 may provide the time slot information in PRS measurement message 1124 to inform BS 1102 and the associated communication network that the PRS measurement is obtained from a DL PRS transmission that overlaps with an active UL transmission from UE 1104. The time slot information may be in the form of a bitmap of the same length as the PRS in the time domain. Each bit may indicate whether there is overlap with a UL symbol. The time slot information may be a single bit (or other flag variable) indicating whether there is overlap. A single bit can be used to reduce signaling overhead. If the active UL transmission has sufficient frequency gap (e.g., guard band) with the DL PRS transmission, the time slot information may not be included in PRS measurement message 1124.

[0117] like Figure 16 The computer system shown can be incorporated as part of the previously described computerized devices such as BS 110, 1102, UE 120, 1104, and network controller 130. Computer system 1600 can be configured to perform methods provided by various other embodiments as described herein and / or can be used as a networking server, mobile device, and / or computer system. It should be noted that... Figure 16 This is intended only to provide a general overview of the various components; any or all of these components may be used as appropriate. Therefore, Figure 16It extensively illustrates how individual system components can be implemented in a relatively separate or relatively more integrated manner.

[0118] Computer system 1600 is shown to include hardware elements that can be electrically coupled (or otherwise communicated, as appropriate) via bus 1605. The hardware elements may include: one or more processors 1610, including but not limited to one or more general-purpose processors and / or one or more special-purpose processors (such as digital signal processing chips, graphics accelerators, etc.); one or more input devices 1615, which may include but are not limited to mice, keyboards, etc.; and one or more output devices 1620, which may include but are not limited to display devices, printers, etc.

[0119] The computer system 1600 may also include (and / or communicate with) one or more non-transitory storage devices 1625, which may include, but are not limited to, locally and / or network-accessible storage devices, and / or may include, but are not limited to, disk drives, drive arrays, optical storage devices, solid-state storage devices (such as random access memory (RAM) and / or read-only memory (ROM)), which may be programmable, flash-updatable, etc. Such storage devices can be configured to implement any suitable data storage, including but not limited to various file systems, database structures, etc.

[0120] Computer system 1600 may also include communication subsystem 1630, which may include, but is not limited to, modems, network interface cards (wireless or wired), infrared communication devices, wireless communication devices and / or chipsets (such as... (802.11 devices, WiFi devices, WiMax devices, cellular communication facilities, etc.). The communication subsystem 1630 can allow the exchange of data with networks, other computer systems, and / or any other devices described herein. In many embodiments, the computer system 1600 will further include working memory 1635, which may include RAM or ROM devices as described above.

[0121] Computer system 1600 may also include software elements, shown as currently residing within working memory 1635, including operating system 1640, device drivers, executable libraries, and / or other code, such as one or more application programs 1645, as described herein, which may include computer programs provided by various embodiments and / or may be designed to implement methods and / or configure systems provided by other embodiments. By way of example only, one or more processes described with respect to the methods discussed above can be implemented as code and / or instructions executable by a computer (and / or a processor within a computer); thus, in one aspect, such code and / or instructions can be used to configure and / or adapt a general-purpose computer (or other device) to perform one or more operations according to the described methods.

[0122] These instructions and / or code sets may be stored on a computer-readable storage medium, such as the storage device 1625 described above. In some cases, the storage medium may be incorporated into a computer system, such as system 1600. In other embodiments, the storage medium may be separable from the computer system (e.g., a removable medium such as a compact optical disc), and / or provided in an installation package, such that the storage medium can be used to program, configure, and / or adapt to a general-purpose computer having instructions / code stored thereon. These instructions may take the form of executable code executable by computer system 1600 and / or may take the form of source code and / or installable code, which, when compiled and / or installed on computer system 1600 (e.g., using various generally available compilers, installers, compression / decompression utilities, etc.), takes the form of executable code.

[0123] It will be apparent to those skilled in the art that substantial changes can be made to suit specific requirements. For example, custom hardware may be used and / or specific elements may be implemented in hardware, software (including portable software such as applets), or both. Furthermore, connectivity to other computing devices, such as network input / output devices, may be employed.

[0124] As described above, in one aspect, some embodiments may employ a computer system (such as computer system 1600) to perform the methods according to various embodiments of the invention. According to one set of embodiments, some or all of these methods are executed by computer system 1600 in response to processor 1610 executing one or more sequences of one or more instructions contained in working memory 1635 (which may be incorporated into operating system 1640 and / or other code, such as application program 1645). Such instructions may be read into working memory 1635 from another computer-readable medium (such as one or more storage devices 1625). By way of example only, execution of the sequence of instructions contained in working memory 1635 may cause processor 1610 to perform one or more processes of the methods described herein.

[0125] As used herein, the terms “machine-readable medium” and “computer-readable medium” refer to any medium that participates in providing data that enables a machine to operate in a particular manner. In embodiments implemented using computer system 1600, various computer-readable media may participate in providing instructions / code to processor 1610 for execution and / or may be used to store and / or carry such instructions / code (e.g., as signals). In many embodiments, computer-readable media are physical and / or tangible storage media. Such media can take many forms, including but not limited to non-volatile media, volatile media, and transmission media. Non-volatile media include, for example, optical discs and / or magnetic disks, such as storage device 1625. Volatile media include, but are not limited to, dynamic memory, such as working memory 1635. Transmission media include, but are not limited to, coaxial cables, copper wires, and optical fibers, which include wires containing bus 1605 and various components of communication subsystem 1630 (and / or the medium through which communication subsystem 1630 provides communication with other devices). Thus, transmission media may also take the form of waves (including, but not limited to, radio waves, sound waves, and / or light waves, such as those generated during radio wave and infrared data communication).

[0126] Common forms of physical and / or tangible computer-readable media include, for example, floppy disks, flexible disks, hard disks, magnetic tapes or any other magnetic media, CD-ROMs, any other optical media, any other physical media with a perforated pattern, RAM, PROM, EPROM, FLASH-EPROM, any other memory chip or cartridge, carriers as described below, or any other media from which a computer can read instructions and / or code.

[0127] Various forms of computer-readable media can participate in carrying one or more sequences of one or more instructions to processor 1610 for execution. By way of example only, instructions may initially be carried on a disk and / or optical disk of a remote computer. The remote computer may load the instructions into its dynamic memory and transmit the instructions as signals on a transmission medium for reception and / or execution by computer system 1600. According to various embodiments of the invention, these signals, which may be in the form of electromagnetic signals, acoustic signals, optical signals, etc., are examples of carrier waves on which instructions can be encoded.

[0128] The communication subsystem 1630 (and / or its components) typically receives signals, and the bus 1605 can then carry the signals (and / or the data, instructions, etc. carried by the signals) to the working memory 1635, where the processor 1605 retrieves and executes instructions from the working memory 1635. Instructions received by the working memory 1635 may optionally be stored on the storage device 1625 before or after execution by the processor 1610.

[0129] refer to Figure 17 A schematic diagram of a mobile device 1700 according to an embodiment is shown. (As shown) Figure 1 The UE 120 shown in Figure 12 and the UE 1104 shown in Figure 11 may include Figure 17 The illustrated mobile device 1700 includes one or more features. In some embodiments, the mobile device 1700 may include a wireless transceiver 1721 capable of transmitting and receiving wireless signals 1723 via a wireless communication network through a wireless antenna 1722. The wireless transceiver 1721 and wireless antenna 1722 may include multiple transceivers and antennas and may be configured for full-duplex operation. The wireless transceiver 1721 may be connected to a bus 1701 via a wireless transceiver bus interface 1720. In some embodiments, the wireless transceiver bus interface 1720 may be at least partially integrated with the wireless transceiver 1721. Some embodiments may include multiple wireless transceivers 1721 and wireless antennas 1722 to implement various wireless communication standards (such as IEEE 802.11, CDMA, WCDMA, LTE, UMTS, GSM, AMPS, Zigbee, etc.). (For example, versions of 5G or NR radio interfaces defined by 3GPP, to name just a few examples) transmit and / or receive signals in full-duplex or half-duplex mode. In certain embodiments, the transceiver 1721 can receive and acquire downlink signals including terrestrial positioning signals such as DL PRS. For example, the transceiver 1721 can sufficiently process the acquired terrestrial positioning signals to enable the timing of the acquired terrestrial positioning signals to be detected.

[0130] Mobile device 1700 may include an SPS receiver 1755 capable of receiving and acquiring SPS signals 1759 via an SPS antenna 1752 (which may be the same as antenna 1722 in some embodiments). The SPS receiver 1755 may process the acquired SPS signals 1759, wholly or partially, to estimate the location of mobile device 1700. One or more general-purpose processors 1711, memory 1740, one or more digital signal processors (DSPs) 1712, and / or dedicated processors (not shown) may be used in conjunction with the SPS receiver 1755 to process the acquired SPS signals, wholly or partially, and / or calculate the estimated location of mobile device 1700. Storage of SPS, TPS, or other signals (e.g., signals acquired from wireless transceiver 1721) used to perform positioning operations, or storage of measurements of these signals, may be performed in memory 1740 or registers (not shown). The general-purpose processor 1711, memory 1740, DSP 1712, and / or dedicated processor may provide or support a location engine for processing measurements to estimate the location of mobile device 1700. For example, a general-purpose processor 1711 or a DSP 1712 can process downlink signals acquired by a wireless transceiver 1721 to measure, for example, RSSI, RTT, AOA, TOA, RSTD, RSRQ, and / or RSRQ.

[0131] Also Figure 17 As shown, the DSP 1712 and general-purpose processor 1711 can be connected to memory 1740 via bus 1701. Specific bus interfaces (not shown) may be integrated with the DSP 1712, general-purpose processor 1711, and memory 1740. In various embodiments, functionality may be executed in response to the execution of one or more machine-readable instructions stored in memory 1740 (such as on a computer-readable storage medium such as RAM, ROM, FLASH, or a disk drive, to name a few examples). One or more instructions may be executed by the general-purpose processor 1711, a dedicated processor, or the DSP 1712. Memory 1740 may include non-transitory processor-readable and / or computer-readable memory storing software code (programming code, instructions, etc.) that can be executed by the processor 1711 and / or the DSP 1712 to perform the functions described herein.

[0132] Also Figure 17As shown, and by way of a few examples only, user interface 1735 may include any of a number of devices such as a speaker, microphone, display device, vibration device, keyboard, touchscreen, etc. In a particular embodiment, user interface 1735 enables a user to interact with one or more applications hosted on mobile device 1700. For example, the device of user interface 1735 may store analog and / or digital signals on memory 1740 for further processing by DSP 1712 or general-purpose processor 1711 in response to actions from the user. Similarly, applications hosted on mobile device 1700 may store analog or digital signals on memory 1740 to present output signals to the user. Mobile device 1700 may optionally include dedicated audio input / output (I / O) device 1770, which includes, for example, dedicated speakers, microphones, digital-to-analog circuitry, analog-to-digital circuitry, amplifiers, and / or gain control. This is merely an example of how audio I / O can be implemented in a mobile device, and the claimed subject matter is not limited to this aspect. Mobile device 1700 may include touch sensor 1762 responsive to touch or pressure on a keyboard or touchscreen device.

[0133] Mobile device 1700 may include a dedicated camera device 1764 for capturing still or moving images. Camera device 1764 may include, for example, an imaging sensor (e.g., a charge-coupled device or a CMOS imager), lenses, analog-to-digital circuitry, frame buffers, and a few other examples. Additional processing, conditioning, encoding, and / or compression of the signal representing the captured image may be performed at a general-purpose / application processor 1711 and / or a DSP 1712. Dedicated video processor 1762 may perform conditioning, encoding, compression, or manipulation on the signal representing the captured image. Video processor 1768 may decode / decompress stored image data for presentation on a display device (not shown) on mobile device 1700.

[0134] Mobile device 1700 may also include sensors 1760 coupled to bus 1701, which may include, for example, inertial sensors and environmental sensors. The inertial sensors of sensor 1760 may include, for example, accelerometers (e.g., responding to acceleration of mobile device 1700 in three dimensions), one or more gyroscopes, or one or more magnetometers (e.g., to support one or more compass applications). The environmental sensors of mobile device 1700 may include, for example, temperature sensors, barometric pressure sensors, ambient light sensors, camera imagers, microphones, and a few other examples. Sensor 1760 may generate analog and / or digital signals, which may be stored in memory 1740 and processed by DPS 1712 or general-purpose application processor 1711 to support one or more applications, such as applications for pointing, positioning, or navigation operations.

[0135] Mobile device 1700 may include a dedicated modem processor 1766 capable of performing baseband processing on signals received and down-converted at wireless transceiver 1721 or SPS receiver 1755. Modem processor 1766 may also perform baseband processing on signals to be up-converted for transmission by wireless transceiver 1721. In alternative embodiments, baseband processing may be performed by a general-purpose processor or DSP (e.g., general-purpose / application processor 1711 or DSP 1712) instead of a dedicated modem processor. These are merely examples of structures capable of performing baseband processing, and the claimed subject matter is not limited thereto.

[0136] Also refer to Figure 18An example of the TRP 1800 of BS 110a-c includes a computing platform comprising a processor 1810, a memory 1811 including software (SW) 1812, a transceiver 1815, and (optionally) an SPS receiver 1817. The processor 1810, memory 1811, transceiver 1815, and SPS receiver 1817 can be communicatively coupled to each other via a bus 1820 (which can be configured, for example, for optical and / or electrical communication). One or more of the illustrated devices (e.g., a wireless interface and / or SPS receiver 1817) can be omitted from the TRP 1800. The SPS receiver 1817 can be configured similarly to the SPS receiver 1717 to receive and acquire SPS signals 1860 via an SPS antenna 1862. The processor 1810 may include one or more intelligent hardware devices, such as a central processing unit (CPU), a microcontroller, an application-specific integrated circuit (ASIC), etc. Processor 1810 may include multiple processors (e.g., general-purpose / application processors, DSPs, modem processors, video processors, and / or sensor processors, as shown in Figure 4). Memory 1811 is a non-transitory storage medium that may include random access memory (RAM), flash memory, disk storage, and / or read-only memory (ROM), etc. Memory 1811 stores software 1812, which may be processor-readable, processor-executable software code containing instructions configured to cause processor 1810 to perform the various functions described herein when executed. Alternatively, software 1812 may not be executed directly by processor 1810, but may be configured to cause processor 1810 to perform these functions, for example, when compiled and executed. This description may only relate to processor 1810 performing functions, but this includes other implementations such as processor 1810 performing software and / or firmware. This description may refer to the function performed by processor 1810 as an abbreviation of one or more processors included in processor 1810 performing the function. This description may be a shortened form of the description of the TRP 1800 performing the function, referred to as TRP 1800 (and therefore one of BS 110a-c). As an addition to and / or replacement of memory 1811, processor 1810 may include memory with store instructions. The functionality of processor 1810 will be discussed more fully below.

[0137] Transceiver 1815 may include a wireless transceiver 1840 and a wired transceiver 1850, which are configured to communicate with other devices via wireless and wired connections, respectively. For example, wireless transceiver 1840 may include a transmitter 1842 and a receiver 1844 coupled to one or more antennas 1846 for transmitting (e.g., on one or more uplink channels) and / or receiving (e.g., on one or more downlink channels) wireless signals 1848 and converting signals from wireless signals 1848 into wired (e.g., electrical and / or optical) signals and from wired (e.g., electrical and / or optical) signals into wireless signals 1848. Therefore, transmitter 1842 may include multiple transmitters, which may be discrete components or combined / integrated components, and / or receiver 1844 may include multiple receivers, which may be discrete components or combined / integrated components. The 1840 wireless transceiver can be configured to support various standards such as 5G New Radio (NR), GSM (Global System for Mobile Communications), UMTS (Universal Mobile Telecommunications System), AMPS (Advanced Mobile Telephone System), CDMA (Code Division Multiple Access), WCDMA (Wideband CDMA), LTE (Long Term Evolution), LTE Direct (LTE-D), 3GPP LTE-V2X (PC5), IEEE 802.11 (including IEEE 802.11p), WiFi, and WiFi Direct (WiFi-D). Various radio access technologies (RATs) such as Zigbee are used to transmit signals (e.g., with UE 1104, one or more other UEs, and / or one or more other devices). Wired transceiver 1850 may include transmitter 1852 and receiver 1854, configured for wired communication, for example, with network controller 130, to send and receive communications to, for example, network controller 130. Transmitter 1852 may include multiple transmitters, which may be discrete components or combined / integrated components, and / or receiver 1854 may include multiple receivers, which may be discrete components or combined / integrated components. Wired transceiver 1850 may be configured for, for example, optical and / or electrical communication.

[0138] Figure 18 The configuration of TRP 1800 shown is exemplary and not a limitation of the invention as claimed, and other configurations may be used. For example, the description herein discusses TRP 1800 being configured to perform several functions, but one or more of these functions may be performed by computer 1600 and / or UE 1104 (i.e., UE 1104 may be configured to perform one or more of these functions).

[0139] The methods, systems, and apparatus discussed above are examples. Various configurations may omit, substitute, or add various processes or components as needed. For example, in alternative configurations, the methods may be performed in a different order than described, and / or various stages may be added, omitted, and / or combined. Furthermore, features described with respect to certain configurations may be combined in various other configurations. Different aspects and elements of configurations may be combined in a similar manner. Moreover, technology is constantly evolving, and therefore many elements are examples and do not limit the scope of this disclosure or the claims.

[0140] Specific details are provided in the description to offer a thorough understanding of the example configurations, including implementations. However, the configurations can be practiced without these specific details. For example, well-known circuits, processes, algorithms, structures, and techniques have been shown without unnecessary detail to avoid obscuring the configurations. This description provides only example configurations and does not limit the scope, applicability, or configuration of the claims. Rather, the foregoing description of the configurations will provide those skilled in the art with a description of what can be achieved to implement the described techniques. Various changes can be made to the function and arrangement of the elements without departing from the spirit or scope of this disclosure.

[0141] Furthermore, the configuration can be described as a process depicted as a flowchart or block diagram. Although each operation can be described as a sequential process, many operations can be executed in parallel or simultaneously. Moreover, the order of operations can be rearranged. The process may have additional steps not included in the diagram. Furthermore, examples of the method can be implemented using hardware, software, firmware, middleware, microcode, hardware description languages, or any combination thereof. When implemented in software, firmware, middleware, or microcode, the program code or code segments that perform the necessary tasks can be stored in a non-transitory computer-readable medium such as a storage medium. The processor can execute the described tasks.

[0142] Several example configurations have been described, and various modifications, alternative constructions, and equivalents may be used without departing from the spirit of this disclosure. For example, the foregoing elements may be components of a larger system, where other rules may take precedence over or otherwise modify the application of the invention. Furthermore, numerous steps may be taken before, during, or after considering the foregoing elements. Therefore, the above description does not limit the scope of the claims.

[0143] Examples of implementation methods are described in the following numbered clauses:

[0144] 1. A method for providing location information of a mobile device to a base station, comprising:

[0145] The mobile device receives location requests and accuracy requirements from the base station.

[0146] One or more positioning reference signals are determined for transmission based on accuracy requirements;

[0147] Positioning measurement information is obtained based on the transmission of one or more positioning reference signals; and

[0148] The positioning measurement information is provided to the base station.

[0149] 2. The method according to Clause 1, wherein one of the one or more positioning reference signal transmissions is a half-duplex time slot.

[0150] 3. The method according to Clause 1, wherein one of the one or more positioning reference signal transmissions is a full-duplex time slot.

[0151] 4. The method according to Clause 1, wherein the positioning measurement information includes a reference signal time difference measurement.

[0152] 5. The method according to Clause 1, wherein the positioning measurement information includes RSSI or RTT measurements.

[0153] 6. The method according to Clause 1, wherein, while transmitting uplink data from the mobile device, downlink positioning measurements are obtained by the mobile device.

[0154] 7. The method according to Clause 6, wherein one or more symbols of the downlink positioning measurement overlap with one or more symbols of the uplink transmission.

[0155] 8. The method according to Clause 7 further includes: providing time slot information to the base station based on the overlap between the one or more symbols measured by downlink positioning and the one or more symbols transmitted by uplink.

[0156] 9. The method according to Clause 8, wherein the time slot information includes a bitmap based on the one or more symbols in the overlap.

[0157] 10. The method according to Clause 8, wherein the time slot information includes a flag variable or a single bit indicating the presence of overlap.

[0158] 11. A method for providing location information of a mobile device to a server, comprising:

[0159] Determine the location information of the mobile device;

[0160] Determine the duplex mode configuration associated with the location information; and

[0161] Provide the server with location information and instructions for configuring the duplex mode.

[0162] 12. The method according to Clause 11, wherein determining the location information includes receiving the location information from the mobile device via a wireless signal.

[0163] 13. The method according to Clause 11, wherein determining the duplex mode configuration includes receiving an indication of the duplex mode configuration from a mobile device via a wireless signal.

[0164] 14. The method according to Clause 13, wherein the indication of duplex mode configuration includes a beam identification value.

[0165] 15. The method according to Clause 13, wherein the indication for duplex mode configuration includes indicating that downlink positioning measurements are obtained by the mobile device for time slot information while transmitting uplink data from the mobile device.

[0166] 16. The method according to Clause 15, wherein one or more symbols of the downlink positioning measurement overlap with one or more symbols of the uplink transmission.

[0167] 17. The method according to Clause 16, wherein the time slot information is based on the overlap between the one or more symbols measured by downlink positioning and the one or more symbols transmitted by uplink.

[0168] 18. The method according to Clause 17, wherein the time slot information includes a bitmap based on the one or more symbols in the overlap.

[0169] 19. The method according to Clause 17, wherein the time slot information includes a flag variable or a single bit indicating the presence of overlap.

[0170] 20. The method according to Clause 11, wherein providing an indication of duplex mode configuration includes indicating that the positioning information is obtained in a full-duplex time slot.

[0171] 21. The method according to Clause 11, wherein providing an indication of duplex mode configuration includes indicating that the location information is obtained from a base station operating in split panel mode.

[0172] 22. A method for providing a positioning reference signal silence pattern, comprising:

[0173] Determine a full-duplex scheme that includes multiple full-duplex time slots;

[0174] The positioning reference signal silence pattern is determined at least in part based on the plurality of full-duplex time slots; and

[0175] Provide the positioning reference signal to the mobile device in a silent pattern.

[0176] 23. The method according to Clause 22, wherein the positioning reference signal silence pattern is configured as the positioning reference signal for the plurality of full-duplex time slots in a silence full-duplex scheme.

[0177] 24. The method according to Clause 22, wherein the positioning reference signal silence pattern is configured as a positioning reference signal in one or more in-band full-duplex time slots in a silence full-duplex scheme, wherein the one or more in-band full-duplex time slots allow simultaneous uplink and downlink transmissions without a guard band.

[0178] 25. The method according to Clause 22, wherein the positioning reference signal silence pattern is configured as a positioning reference signal in one or more sub-band full-duplex time slots in a silence full-duplex scheme, wherein the one or more sub-band full-duplex time slots allow simultaneous uplink and downlink transmissions in cases where frequency separation is insufficient to reduce self-interference on mobile devices.

[0179] 26. The method according to Clause 22, wherein the positioning reference signal silence pattern excludes the positioning reference signal in one or more sub-band full-duplex time slots in the full-duplex scheme, wherein the one or more sub-band full-duplex time slots allow simultaneous uplink and downlink transmission with frequency separation sufficient to reduce self-interference on mobile devices.

[0180] 27. An apparatus comprising:

[0181] Memory;

[0182] One or more transceivers;

[0183] The processor is communicatively coupled to memory and one or more transceivers and is configured to:

[0184] The location request and accuracy requirement are received from the base station via one or more transceivers;

[0185] Based on the accuracy requirements, one or more positioning reference signals are determined for transmission;

[0186] Positioning measurement information is obtained based on the transmission of one or more positioning reference signals; and

[0187] The positioning measurement information is provided to the base station.

[0188] 28. The apparatus according to Clause 27, wherein one of the one or more positioning reference signal transmissions is a half-duplex time slot.

[0189] 29. The apparatus according to Clause 27, wherein one of the one or more positioning reference signal transmissions is a full-duplex time slot.

[0190] 30. The apparatus according to Clause 27, wherein the positioning measurement information includes a reference signal time difference measurement.

[0191] 31. The apparatus according to Clause 27, wherein the positioning measurement information includes RSSI or RTT measurements.

[0192] 32. The apparatus according to Clause 27, wherein downlink positioning measurements are obtained using the one or more transceivers simultaneously with uplink transmission using the one or more transceivers.

[0193] 33. The apparatus according to clause 32, wherein one or more symbols of downlink positioning measurements overlap with one or more symbols of uplink transmissions.

[0194] 34. The apparatus according to Clause 33 further includes: providing time slot information to the base station based on the overlap between the one or more symbols measured by downlink positioning and the one or more symbols transmitted by uplink.

[0195] 35. The apparatus according to clause 34, wherein the time slot information includes a bitmap based on the one or more symbols in the overlap.

[0196] 36. The apparatus according to clause 34, wherein the time slot information includes a flag variable or a single bit indicating the presence of overlap.

[0197] 37. An apparatus comprising:

[0198] Memory;

[0199] The processor is communicatively coupled to the memory and configured as follows:

[0200] Determine the location information of the mobile device;

[0201] Determine the duplex mode configuration associated with the location information; and

[0202] Provide the server with the location information and instructions for configuring the duplex mode.

[0203] 38. The apparatus according to Clause 37, wherein the indication of the duplex mode configuration includes a beam identification value.

[0204] 39. The apparatus according to Clause 37, wherein the indication for duplex mode configuration includes indicating that downlink positioning measurements are obtained by the mobile device while transmitting uplink data from the mobile device.

[0205] 40. The apparatus according to clause 39, wherein one or more symbols of downlink positioning measurements overlap with one or more symbols of uplink transmissions.

[0206] 41. The apparatus according to clause 40, wherein the time slot information is based on the overlap of the one or more symbols measured by downlink positioning with the one or more symbols transmitted by uplink.

[0207] 42. The apparatus according to clause 41, wherein the time slot information includes a bitmap based on the one or more symbols in the overlap.

[0208] 43. The apparatus according to clause 41, wherein the time slot information includes a flag variable or a single bit indicating the presence of overlap.

[0209] 44. The apparatus according to Clause 37, wherein the processor is configured to provide an indication of whether the positioning information is obtained in a full-duplex time slot.

[0210] 45. The apparatus according to Clause 37, wherein the processor is configured to provide an indication that the location information is obtained from a base station operating in a split-panel mode.

[0211] 46. ​​An apparatus comprising:

[0212] Memory;

[0213] transceiver;

[0214] The processor is communicatively coupled to the memory and transceiver and is configured as follows:

[0215] Determine a full-duplex scheme that includes multiple full-duplex time slots;

[0216] The positioning reference signal silence pattern is determined at least in part based on these multiple full-duplex time slots; and

[0217] Provide the positioning reference signal to the mobile device in a silent pattern.

[0218] 47. The apparatus according to Clause 46, wherein the positioning reference signal silencing pattern is configured to silence the positioning reference signal in the plurality of full-duplex time slots in a full-duplex scheme.

[0219] 48. The apparatus according to Clause 46, wherein the positioning reference signal silence pattern is configured as a positioning reference signal in one or more in-band full-duplex time slots in a silence full-duplex scheme, wherein the one or more in-band full-duplex time slots allow simultaneous uplink and downlink transmissions without a guard band.

[0220] 49. The apparatus according to Clause 46, wherein the positioning reference signal silence pattern is configured as a positioning reference signal in one or more sub-band full-duplex time slots in a silence full-duplex scheme, wherein the one or more sub-band full-duplex time slots allow simultaneous uplink and downlink transmission in the presence of frequency separation that is insufficient to reduce self-interference on the mobile device.

[0221] 50. The apparatus according to Clause 46, wherein the positioning reference signal silence pattern excludes the positioning reference signal in one or more sub-band full-duplex time slots in a full-duplex scheme, wherein the one or more sub-band full-duplex time slots allow simultaneous uplink and downlink transmission with frequency separation sufficient to reduce self-interference on mobile devices.

[0222] 51. An apparatus for providing location information of a mobile device to a base station, comprising:

[0223] Components used to receive positioning requests and accuracy requirements from base stations;

[0224] A component used to determine the transmission of one or more positioning reference signals based on accuracy requirements;

[0225] Components for obtaining positioning measurement information based on the one or more positioning reference signals; and

[0226] Components used to provide positioning measurement information to base stations.

[0227] 52. A non-transitory processor-readable storage medium, comprising processor-readable instructions configured to cause one or more processors to provide location information of a mobile device to a base station, including:

[0228] Code used to receive location requests and accuracy requirements from the base station;

[0229] Code used to determine the transmission of one or more positioning reference signals based on accuracy requirements;

[0230] Code used to obtain positioning measurement information based on the one or more positioning reference signals; and

[0231] Code used to provide location measurement information to the base station.

[0232] 53. An apparatus for providing location information of a mobile device to a server, comprising:

[0233] Components used to determine the location information of mobile devices;

[0234] Components used to determine the duplex mode configuration associated with location information; and

[0235] A component used to provide the server with location information and instructions on duplex mode configuration.

[0236] 54. A non-transitory processor-readable storage medium, comprising processor-readable instructions configured to cause one or more processors to provide location information of a mobile device to a server, including:

[0237] Codes used to determine the location information of a mobile device;

[0238] Code used to determine the duplex mode configuration associated with location information; and

[0239] This code is used to provide the server with location information and instructions on duplex mode configuration.

[0240] 55. An apparatus for providing a positioning reference signal silence pattern, comprising:

[0241] Components used to determine a full-duplex scheme that includes multiple full-duplex time slots;

[0242] Components for determining the silent configuration of the positioning reference signal based at least in part on the plurality of full-duplex time slots; and

[0243] A component used to silently configure positioning reference signals for mobile devices.

[0244] 56. A non-transitory processor-readable storage medium, comprising processor-readable instructions configured to cause one or more processors to provide a positioning reference signal silence pattern, including:

[0245] Code used to determine a full-duplex scheme that includes multiple full-duplex time slots;

[0246] Code for determining the silent configuration of the positioning reference signal based at least in part on the plurality of full-duplex time slots; and

[0247] Code used for silent configuration of providing positioning reference signals to mobile devices.

Claims

1. A method for providing location information of a mobile device to a base station, comprising: The mobile device receives a location request and accuracy requirement from the base station. One or more positioning reference signal transmissions are determined based on the accuracy requirements, wherein one or more positioning reference signal transmissions is a half-duplex time slot or a full-duplex time slot, and the reduced accuracy requirements are associated with the full-duplex time slot. Positioning measurement information is obtained based on the transmission of one or more positioning reference signals; and The positioning measurement information is provided to the base station.

2. The method according to claim 1, wherein, The positioning measurement information includes reference signal time difference measurement.

3. The method according to claim 1, wherein, The positioning measurement information includes RSSI or RTT measurements.

4. The method according to claim 1, wherein, While transmitting uplink data from the mobile device, downlink positioning measurements are obtained by the mobile device.

5. The method according to claim 4, wherein, One or more symbols of the downlink positioning measurement overlap with one or more symbols of the uplink transmission.

6. The method of claim 5, further comprising: The time slot information is provided to the base station based on the overlap between the one or more symbols measured in the downlink positioning and the one or more symbols transmitted in the uplink.

7. The method according to claim 6, wherein, The time slot information includes a bitmap based on the one or more symbols in the overlap.

8. The method according to claim 6, wherein, The time slot information includes a flag variable or a single bit indicating the presence of the overlap.

9. An apparatus for providing location information of a mobile device to a base station, comprising: Memory; One or more transceivers; The processor is communicatively coupled to the memory and the one or more transceivers and is configured to: The system receives location requests and accuracy requirements from the base station via one or more transceivers. One or more positioning reference signal transmissions are determined based on the accuracy requirements, wherein one or more positioning reference signal transmissions is a half-duplex time slot or a full-duplex time slot, and the reduced accuracy requirements are associated with the full-duplex time slot. Positioning measurement information is obtained based on the transmission of one or more positioning reference signals; and The positioning measurement information is provided to the base station.

10. The apparatus according to claim 9, wherein, The positioning measurement information includes reference signal time difference measurement.

11. The apparatus according to claim 9, wherein, The positioning measurement information includes RSSI or RTT measurements.

12. The apparatus according to claim 9, wherein, Simultaneously with uplink transmission using the one or more transceivers, downlink positioning measurements are obtained using the one or more transceivers.

13. The apparatus according to claim 12, wherein, One or more symbols of the downlink positioning measurement overlap with one or more symbols of the uplink transmission.

14. The apparatus of claim 13, further comprising: The time slot information is provided to the base station based on the overlap between the one or more symbols measured in the downlink positioning and the one or more symbols transmitted in the uplink.

15. The apparatus according to claim 14, wherein, The time slot information includes a bitmap based on the one or more symbols in the overlap.

16. The apparatus according to claim 14, wherein, The time slot information includes a flag variable or a single bit indicating the presence of the overlap.

17. An apparatus for providing location information of a mobile device to a base station, comprising: Components for performing the method according to any one of claims 1-8.

18. A non-transitory processor-readable storage medium having stored processor-readable instructions thereon, which, when executed by one or more processors, cause the one or more processors to perform the method according to any one of claims 1-8.

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