Downlink Positioning Reference Signal Configuration and Processing in Full-Duplex Scenario

Abstract

Techniques for utilizing positioning reference signals (PRS) in full-duplex scenarios are provided. An example method for wireless communication by a user equipment (UE) includes: receiving a positioning reference signal in a time slot, wherein the positioning reference signal spans a first frequency bandwidth; transmitting a signal in a second frequency bandwidth during the time slot, wherein the second frequency bandwidth includes frequencies within the first frequency bandwidth; and processing the positioning reference signal received in the first frequency bandwidth excluding frequencies in the second frequency bandwidth.

Description

Technical Field

[0001] Aspects of the present disclosure relate to wireless communications, and more particularly to techniques for user equipment to utilize positioning reference signals with full-duplex operation. Background Art

[0002] Wireless communication systems are widely deployed to provide various telecommunication services, such as telephony, voice, video, data, messaging, broadcast, positioning, etc. These wireless communication systems may employ multiple access technologies capable of supporting communication with multiple users by sharing available system resources (e.g., frequency, transmit power, etc.). Examples of such multiple access systems include the 3rd Generation Partnership Project (3GPP) fifth generation new radio system (5G NR), long term evolution (LTE) system, advanced LTE (LTE-A) system, code division multiple access (CDMA) system, time division multiple access (TDMA) system, frequency division multiple access (FDMA) system, orthogonal frequency division multiple access (OFDMA) system, single carrier frequency division multiple access (SC-FDMA) system, and time division synchronous code division multiple access (TD-SCDMA) system, to name a few.

[0003] Obtaining the location or positioning of a mobile device that is accessing a wireless communication system may be useful for many applications, including, for example, emergency calls, personal navigation, asset tracking, friend or family member positioning, etc. Existing positioning methods include methods based on measuring wireless signals transmitted from various devices, including artificial satellites (SVs) and ground radio resources in wireless networks (such as base stations and access points). In methods based on ground radio sources, a mobile device can measure the timing of signals received from two or more base stations and determine the arrival time, arrival time difference, and / or reception time-transmission time difference. Combining these measurements with the known positions of the base stations and the known transmission times from each base station can use positioning methods such as arrival time observation difference (OTDOA) or enhanced cell ID (ECID) to achieve positioning of the mobile device.

[0004] To further aid in location determination (e.g., for OTDOA), positioning reference signals (PRS) may be sent by the base station to improve both measurement accuracy and the number of different base stations for which a mobile device can obtain timing measurements. Generally speaking, a base station and a mobile device may communicate using half-duplex operation, which sequentially utilizes either a downlink channel (e.g., for transmissions from a base station to a mobile device) or an uplink channel (e.g., for transmissions from a mobile device to a base station). However, emerging technologies will enable full-duplex operation, where a base station or a mobile device may communicate on both a downlink channel and an uplink channel simultaneously. Full-duplex operation may reduce the efficiency of the terrestrial positioning process. Summary of the invention

[0005] An example method for wireless communication by a user equipment (UE) according to the present disclosure includes: receiving a positioning reference signal in a time slot, wherein the positioning reference signal spans a first frequency bandwidth; sending a signal in a second frequency bandwidth during the time slot, wherein the second frequency bandwidth includes frequencies within the first frequency bandwidth; and processing the positioning reference signal received in the first frequency bandwidth excluding frequencies in the second frequency bandwidth.

[0006] Implementations of this method may include one or more of the following features. The time slot may be a symbol time slot. The positioning reference signal may be received from a first base station, and the signal sent in the second frequency bandwidth may be sent to the first base station. The positioning reference signal may be received from a first base station, and the signal sent in the second frequency bandwidth may be sent to a second base station. One or more radio resource control signals may be received to configure the first frequency bandwidth and the second frequency bandwidth. Processing the positioning reference signal may include comparing the positioning reference signal received in the first frequency bandwidth with a previous positioning reference signal received in a previous time slot. The duration of the time slot may be approximately between 1 millisecond and 6 milliseconds. The positioning reference signal may be one of a plurality of positioning reference signals received by the user equipment, such that each of the plurality of positioning reference signals has the same subcarrier spacing and cyclic prefix.

[0007] An example method for wireless communication by a user equipment (UE) according to the present disclosure includes: receiving a positioning reference signal in a downlink resource bandwidth portion; sending a signal in an uplink resource bandwidth portion, wherein the uplink resource bandwidth portion overlaps with at least a portion of the downlink resource bandwidth portion; and processing the positioning reference signal received in a portion of the downlink resource bandwidth portion that does not overlap with the uplink resource bandwidth portion.

[0008] Implementations of this method may include one or more of the following features. The positioning reference signal may be received from a first base station, and the signal in the uplink resource bandwidth portion may be sent to the first base station. The positioning reference signal may be received from a first base station, and the signal in the uplink resource bandwidth portion may be sent to a second base station. One or more radio resource control signals may be received to configure the downlink resource bandwidth portion and the uplink resource bandwidth portion. One or more downlink control information signals may be received to configure the downlink resource bandwidth portion and the uplink resource bandwidth portion. The positioning reference signal may be received in a first time slot, and processing the positioning reference signal may include comparing the positioning reference signal received in the first time slot with a previous positioning reference signal received in a previous time slot. The duration of the first time slot may be approximately between 1 millisecond and 6 milliseconds. The positioning reference signal may be one of a plurality of positioning reference signals received by the user equipment, such that each of the plurality of positioning reference signals has the same subcarrier spacing and cyclic prefix. The downlink resource bandwidth portion may include a mutually exclusive set of frequency resources.

[0009] An example method for wireless communication by a base station according to the present disclosure: configuring a first positioning frequency layer for full-duplex operation; configuring a second positioning frequency layer for half-duplex operation; providing the first positioning frequency layer to a first mobile device; and providing the second positioning frequency layer to a second mobile device.

[0010] Implementations of this method may include one or more of the following features. The first positioning frequency layer and the second positioning frequency layer may include one or more positioning reference signal resource sets, wherein each positioning reference signal resource set includes the same subcarrier spacing and cyclic prefix. Configuring the first positioning frequency layer for full-duplex operation may include configuring a time slot category field to indicate full-duplex operation. Configuring the second positioning frequency layer for half-duplex operation may include configuring a time slot category field to indicate half-duplex operation. Providing the first positioning frequency layer to the first mobile device and providing the second positioning frequency layer to the second mobile device may include sending one or more radio resource control signals to the first mobile device and the second mobile device.

[0011] An example apparatus for wireless communication according to the present disclosure includes: a memory; at least one transceiver; and at least one processor, the at least one processor being communicatively coupled to the memory and the at least one transceiver, such that the at least one transceiver is configured to: receive a positioning reference signal in a time slot, wherein the positioning reference signal spans a first frequency bandwidth, and transmit a signal in a second frequency bandwidth during the time slot, wherein the second frequency bandwidth includes frequencies within the first frequency bandwidth, and the at least one processor is configured to process the positioning reference signal received in the first frequency bandwidth excluding frequencies in the second frequency bandwidth.

[0012] An example apparatus for wireless communication according to the present disclosure includes: a memory; at least one transceiver; and at least one processor, the at least one processor being communicatively coupled to the memory and the at least one transceiver, so that the at least one transceiver is configured to: receive a positioning reference signal in a downlink resource bandwidth portion, and send a signal in an uplink resource bandwidth portion, wherein the uplink resource bandwidth portion overlaps with at least a portion of the downlink resource bandwidth portion, and the at least one processor is configured to process the positioning reference signal received in a portion of the downlink resource bandwidth portion that does not overlap with the uplink resource bandwidth portion.

[0013] An example apparatus for wireless communication according to the present disclosure includes: a memory; at least one transceiver; at least one processor, the at least one processor being operably coupled to the at least one transceiver and the memory and configured to: configure a first positioning frequency layer for full-duplex operation; configure a second positioning frequency layer for half-duplex operation; provide the first positioning frequency layer to a first mobile device; and provide the second positioning frequency layer to a second mobile device.

[0014] An example apparatus for wireless communication by a user equipment (UE) according to the present disclosure includes: a component for receiving a positioning reference signal in a time slot, wherein the positioning reference signal spans a first frequency bandwidth; a component for sending a signal in a second frequency bandwidth during the time slot, wherein the second frequency bandwidth includes frequencies within the first frequency bandwidth; and a component for processing the positioning reference signal received in the first frequency bandwidth excluding frequencies in the second frequency bandwidth.

[0015] An example apparatus for wireless communication by a user equipment (UE) according to the present disclosure includes: a component for receiving a positioning reference signal in a downlink resource bandwidth portion; a component for sending a signal in an uplink resource bandwidth portion, wherein the uplink resource bandwidth portion overlaps with at least a portion of the downlink resource bandwidth portion; and a component for processing a positioning reference signal received in a portion of the downlink resource bandwidth portion that does not overlap with the uplink resource bandwidth portion.

[0016] According to the present disclosure, an example apparatus for wireless communication by a base station includes: a component for configuring a first positioning frequency layer for full-duplex operation; a component for configuring a second positioning frequency layer for half-duplex operation; a component for providing the first positioning frequency layer to a first mobile device; and a component for providing the second positioning frequency layer to a second mobile device.

[0017] An example of a non-transitory processor-readable storage medium including processor-readable instructions configured to enable one or more processors in a user equipment (UE) to communicate wirelessly according to the present disclosure includes: code for receiving a positioning reference signal in a time slot, wherein the positioning reference signal spans a first frequency bandwidth; code for sending a signal in a second frequency bandwidth during the time slot, wherein the second frequency bandwidth includes frequencies within the first frequency bandwidth; and code for processing a positioning reference signal received in the first frequency bandwidth excluding frequencies in the second frequency bandwidth.

[0018] An example of a non-transitory processor-readable storage medium including processor-readable instructions configured to enable one or more processors in a user equipment (UE) to communicate wirelessly according to the present disclosure includes: code for receiving a positioning reference signal in a downlink resource bandwidth portion; code for sending a signal in an uplink resource bandwidth portion, wherein the uplink resource bandwidth portion overlaps with at least a portion of the downlink resource bandwidth portion; and code for processing a positioning reference signal received in a portion of the downlink resource bandwidth portion that does not overlap with the uplink resource bandwidth portion.

[0019] An example of a non-transitory processor-readable storage medium according to the present disclosure including processor-readable instructions configured to enable one or more processors in a user equipment (UE) to communicate wirelessly includes: code for configuring a first positioning frequency layer for full-duplex operation; code for configuring a second positioning frequency layer for half-duplex operation; code for providing the first positioning frequency layer to a first mobile device; and code for providing the second positioning frequency layer to a second mobile device.

[0020] The items and / or technologies described herein may provide one or more of the following capabilities and other capabilities not mentioned. The base station and the user equipment may be configured for full-duplex operation. The positioning frequency layer may include information categories designated for full-duplex operation or half-duplex operation. The spectrum may have a designated half-duplex area and a full-duplex area. Positioning reference signal (PRS) resources in the full-duplex area may be ignored by the user equipment configured for half-duplex operation. The user equipment configured for full-duplex operation may process the PRS resources in the downlink area of ​​the full-duplex area and ignore part of the PRS resources in the uplink area. In full-duplex operation within the frequency band, a portion of the downlink area may overlap with the uplink area. The full-duplex user equipment may ignore part of the PRS resources in the overlapping area. Other capabilities may be provided, and not every embodiment according to the present disclosure must provide any of the capabilities discussed, let alone all capabilities. In addition, the effects mentioned above may be implemented by components other than the components mentioned, and the items / techniques mentioned may not necessarily produce the effects mentioned. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a block diagram conceptually illustrating an example telecommunications system.

[0022] Figure 2 is a block diagram illustrating an example architecture of a distributed radio access network (RAN) in accordance with certain aspects of the present disclosure.

[0023] FIG. 3A to FIG. 3C Different full-duplex communication modes in a telecommunication system are shown.

[0024] Figure 4A and Figure 4B Examples of different types of full-duplex operation are shown.

[0025] Figure 5 Example spectrum is shown for a full-duplex base station and a half-duplex mobile device.

[0026] Figure 6 Example spectrum for a full-duplex base station and a full-duplex mobile device is shown.

[0027] Fig. 7A and Figure 7B An example downlink positioning reference signal resource set is shown.

[0028] Figure 8 Example subframe and slot formats for positioning reference signal (PRS) transmission are shown.

[0029] Fig. 9 An example spectrum for sub-band full-duplex positioning reference signal (PRS) transmission is shown.

[0030] Fig.10 An example spectrum for in-band full-duplex positioning reference signal (PRS) transmission is shown.

[0031] Fig.11 is a flow chart of an example method for configuring a network for half-duplex operation and full-duplex operation.

[0032] Fig.12 is a flow chart of an example method for processing positioning reference signals in a sub-band full-duplex scenario.

[0033] Fig.13 is a flow chart of an example method for processing positioning reference signals in an in-band full-duplex scenario.

[0034] Fig.14 A block diagram of an example of a computer system is shown.

[0035] Fig.15 is a block diagram of an example mobile device.

[0036] Fig.16 is a block diagram of an example base station. DETAILED DESCRIPTION

[0037] This article discusses techniques for utilizing positioning reference signals (PRS) in full-duplex scenarios. For example, a positioning frequency layer may include a set of PRS resource sets across one or more base stations. A positioning reference signal (PRS) frequency layer may include information categories designated for full-duplex operation or half-duplex operation. The network may configure a first positioning frequency layer for full-duplex operation and a second positioning frequency layer for half-duplex operation. In one example, PRS resources may span downlink regions and uplink regions in a full-duplex spectrum. Mobile devices that only have half-duplex operation capabilities may ignore spanning PRS resources. Mobile devices with full-duplex capabilities may receive and process portions spanning PRS in the downlink region and ignore portions spanning PRS in the uplink region. In one example, a downlink PRS may be within one or more downlink bandwidth portions in a sub-band full-duplex configuration, and a mobile device may process PRS resources within a downlink bandwidth portion. In an intra-band full-duplex configuration where the uplink frequency and the downlink frequency overlap, a mobile device may receive and process PRS resources in non-overlapping downlink bandwidth portions. In one example, a sidelink channel (eg, UE to UE) may be modified by a frequency layer to enable full-duplex and / or half-duplex operation. These techniques are examples only and are not exhaustive.

[0038] 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 functionality and arrangement of the elements discussed without departing from the scope of the disclosure. Various examples may omit, substitute, or add various processes or components as appropriate. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, and / or combined. Moreover, features described with respect to some examples may be combined in some other examples. For example, any number of aspects set forth herein may be used to implement an apparatus or practice a method. Additionally, the scope of the disclosure is intended to cover such apparatus or methods practiced using other structures, functionality, or structures and functionality that supplement or substitute for those of the various aspects of the disclosure set forth herein. It should be understood that any aspect of the disclosure disclosed herein may be embodied by one or more elements of the claims. The term " 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 more preferred or advantageous than other aspects.

[0039] The techniques described herein can be used in various wireless communication technologies such as 3GPP Fifth Generation New Radio (5G NR). 5G NR is an emerging wireless communication technology developed in conjunction with the 5G Technology Forum (5GTF). NR access (e.g., 5G NR) can support various wireless communication services such as enhanced mobile broadband (eMBB) targeted at broadband (e.g., 80 MHz or higher), millimeter wave (mmW) targeted at high carrier frequencies (e.g., 25 GHz or higher), massive machine type communication (mMTC) targeted at non-backward compatible MTC technologies, and / or mission critical targeted at ultra-reliable low latency communication (URLLC). These services can include latency and reliability requirements. These services can also have different transmission time intervals (TTIs) to meet the corresponding quality of service (QoS) requirements. Additionally, these services can coexist in the same subframe.

[0040] The techniques described herein can be used in 5G NR wireless networks and radio technologies as well as other wireless networks and radio technologies.

[0041] Refer to Figure 1, an example wireless communication network 100 is shown. The wireless communication network 100 may be a full-duplex NR system (e.g., a full-duplex 5G network). In one example, a mobile device (such as a user equipment (UE) 120a) has a BW component 160 that can be configured to adapt an operating bandwidth (BW) of the UE 120a. Similarly, a base station (BS) 110a may include a BW configuration component 170 that can configure a UE (such as UE 120a) to adapt an operating BW.

[0042] The wireless communication network 100 may include a number of base stations (BSs) 110 and other network entities. A BS may be a base station that communicates with a user equipment (UE). Each BS 110 may provide communication coverage for a specific geographic area. In 3GPP, the term " Community ” The term NR may refer to the coverage area of ​​a Node B (NB) and / or the NB subsystem serving the coverage area, depending on the context in which the term is used. " Community ” The terms BS, next generation Node B (gNB or gNodeB), access point (AP), distributed unit (DU), carrier, or transmit receive point (TRP) may be used interchangeably. In some examples, the cell may not necessarily be fixed, and the geographical area of ​​the cell may move according to the location of the mobile BS. In some examples, the BSs may be interconnected with each other and / or with one or more other BSs or network nodes (not shown) in the wireless communication network 100 through various types of backhaul interfaces such as direct physical connections, wireless connections, virtual networks, etc. using any suitable transport network.

[0043] 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. RAT can also be referred to as radio technology, air interface, etc. Frequency can also be referred to as carrier, subcarrier, frequency channel, multi-band (tone), sub-band, etc. Each frequency can support a single RAT in a given geographic area to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks can be deployed.

[0044] The BS may provide communication coverage for macro cells, micro cells, femto cells, and / or other types of cells. A macro cell may cover a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access to UEs with service subscriptions. A micro cell may cover a relatively small geographic area and may allow unrestricted access to UEs with service subscriptions. A femto cell may cover a relatively small geographic area (e.g., a home) and may allow unrestricted access to UEs associated with the femto cell (e.g., UEs in a closed subscriber group (CSG), UEs of home users, etc.). A BS for a macro cell may be referred to as a macro BS. A BS for a micro cell may be referred to as a micro BS. A BS for a femto cell may be referred to as a femto BS or a home BS. BSs 110a, 110b, and 110c may be macro BSs for macro cells 102a, 102b, and 102c, respectively. BS 110x may be a micro BS for a micro cell 102x. BSs 110y and 110z may be femto BSs for femto cells 102y and 102z, respectively. A BS may support one or more (eg, three) cells.

[0045] The wireless communication network 100 may also include a relay station. A relay station is a station that receives data and / or other information from an upstream station (e.g., a BS or a UE) and sends the data and / or other information to a downstream station (e.g., a UE or a BS). A relay station may also be a UE that relays transmissions for other UEs. A relay station 110r may communicate with a BS110a and a UE 120r to facilitate communication between the BS110a and the UE 120r. A relay station may also be referred to as a relay BS, a relay, etc.

[0046] The wireless communication network 100 may be a heterogeneous network including different types of BSs (e.g., macro BSs, pico BSs, femto BSs, relays, etc.). These different types of BSs may have different transmit power levels, different coverage areas, and different effects on interference in the wireless communication network 100. For example, a macro BS may have a high transmit power level (e.g., 20 watts), while a pico BS, a femto BS, and a relay may have a lower transmit power level (e.g., 1 watt).

[0047] The wireless communication network 100 may support synchronous or asynchronous operation. For synchronous operation, the BSs may have similar frame timings, and transmissions from different BSs may be approximately aligned in time. For asynchronous operation, the BSs may have different frame timings, and transmissions from different BSs may not be aligned in time. The techniques described herein may be used for both synchronous and asynchronous operation.

[0048] A network controller 130 may be coupled to a set of BSs and provide coordination and control for these BSs. The network controller 130 may communicate with the BSs 110 via a backhaul. The BSs 110 may also communicate with each other (eg, directly or indirectly) via a wireless or wired backhaul.

[0049] UEs 120 (e.g., 120a, 120b, 120x, 120y, etc.) may be dispersed throughout the wireless communication network 100, and each UE may be fixed or mobile. UEs may also be referred to as mobile devices, mobile stations, terminals, access terminals, subscriber units, stations, customer premises equipment (CPE), cellular phones, smart phones, personal digital assistants (PDAs), wireless modems, wireless communication devices, handheld devices, laptop computers, cordless phones, wireless local loop (WLL) stations, tablet computers, cameras, gaming devices, netbooks, smartbooks, ultrabooks, appliances, medical devices / medical equipment, biometric sensors / devices, wearable devices (such as smart watches, smart clothing, smart glasses, smart wristbands, smart jewelry (e.g., smart rings, smart bracelets, etc.)), entertainment devices (e.g., music devices, video devices, satellite radio, etc.), vehicle components or sensors, smart meters / sensors, industrial manufacturing equipment, global positioning system devices, or any other suitable device configured to communicate via wireless or wired media. Some UEs may be considered as machine type communication (MTC) devices or evolved MTC (eMTC) devices. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, location tags, etc. that can communicate with a BS, another device (e.g., a remote device), or some other entity. A wireless node may provide connectivity to or with a network (e.g., a wide area network such as the Internet or a cellular network) via a wired or wireless communication link. Some UEs may be considered as Internet of Things (IoT) devices, which may be narrowband IoT (NB-IoT) devices.

[0050] Some wireless networks (e.g., LTE) utilize 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, which are also commonly referred to as tones, frequency bins, etc. Each subcarrier can be modulated with data. In general, modulation symbols are sent in the frequency domain with OFDM and in the time domain with SC-FDM. The spacing between adjacent subcarriers can be fixed, and the total number of subcarriers (K) can depend on the system bandwidth. For example, the subcarrier spacing can be 15kHz, and the minimum resource allocation (referred to as " Resource Block ”(RB)) can be 12 subcarriers (or 180kHz). Therefore, for a system bandwidth of 1.25, 2.5, 5, 10, or 20 megahertz (MHz), the nominal fast Fourier transform (FFT) size can be equal to 128, 256, 512, 1024, or 2048, respectively. The system bandwidth can also be divided into subbands. For example, one subband can cover 1.08MHz (e.g., 6 RBs), and there may be 1, 2, 4, 8, or 16 subbands for a system bandwidth of 1.25, 2.5, 5, 10, or 20MHz, respectively. In LTE, the basic transmission time interval (TTI) or packet duration is a 1ms subframe. In NR, the subframe is still 1ms, but the basic TTI is called a time slot. A subframe contains a variable number of time slots (e.g., 1, 2, 4, 8, 16 …… timeslot), which depends on the subcarrier spacing. NR RB is 12 consecutive frequency subcarriers. NR can support a basic subcarrier spacing of 15KHz, and other subcarrier spacings can be defined relative to the basic subcarrier spacing, such as 30kHz, 60kHz, 120kHz, 240kHz, etc. The symbol and timeslot length scales with the subcarrier spacing. The CP length also depends on the subcarrier spacing. NR can support sending a positioning reference signal (PRS) in one or more timeslots as described herein.

[0051] NR can utilize OFDM with CP on both uplink and downlink and includes support for half-duplex operation using TDD. Beamforming can be supported and the beam direction can be dynamically configured. MIMO transmission with precoding can also be supported. In some examples, MIMO configuration in DL can support up to 8 transmit antennas, with multi-layer DL transmission with up to 8 streams and up to 2 streams per UE. In some examples, multi-layer transmission with up to 2 streams per UE can be supported. Up to 8 serving cells can support aggregation of multiple cells.

[0052] In some examples, access to the air interface can be scheduled. The scheduling entity (e.g., BS) allocates resources for communication among some or all devices and equipment within its service area or cell. The scheduling entity may be responsible for scheduling, assigning, reconfiguring, and releasing resources for one or more subordinate entities. That is, for scheduling communications, the subordinate entity utilizes the resources allocated by the scheduling entity. The base station is not the only entity that can act as a scheduling entity. In some examples, the UE may act as a scheduling entity, and resources for one or more subordinate entities (e.g., one or more other UEs) may be scheduled, and other UEs may use the resources scheduled by the UE for wireless communications. In some examples, the UE may act as a scheduling entity in a peer-to-peer (P2P) network and / or a mesh network. In the mesh network example, in addition to communicating with the scheduling entity, the UEs may also communicate directly with each other.

[0053] In some examples, two or more subordinate entities (e.g., UE) can communicate with each other using sidelink signals. Practical applications of such sidelink communications may include public safety, proximity services, UE to network relay, vehicle-to-vehicle (V2V) communications, Internet of Everything (IoE) communications, IoT communications, mission-critical mesh networks, and / or various other suitable applications. Typically, a sidelink signal may refer to a signal that is communicated from one subordinate entity (e.g., UE 1) to another subordinate entity (e.g., UE 2) without relaying the transmitted signal 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, a licensed spectrum (different from a wireless local area network that typically uses an unlicensed spectrum) may be used to communicate sidelink signals. In one example, a sidelink signal may be configured for full-duplex or half-duplex operation. A positioning frequency layer may be used to facilitate full-duplex and / or half-duplex UE-to-UE transmission for sidelink positioning applications.

[0054] exist Figure 1 In FIG. 1 , a solid line with double arrows indicates desired transmissions between a UE and a serving BS, which is a BS designated to serve the UE on the downlink and / or uplink. A thin dashed line with double arrows indicates transmissions between a potentially interfering UE and a BS.

[0055] refer to Figure 2 , showing (for example, in Figure 1 1 and 120 in a wireless communication network 100. The components including antenna 252, processors 266, 258, 264 and / or controller / processor 280 of UE 120 and / or antenna 234, processors 220, 230, 238 and / or controller / processor 240 of BS 110 can be used to perform various techniques and methods described herein.

[0056] At BS110, the transmit processor 220 may receive data from the data source 212 and control information from the controller / processor 240. For LTE systems, the control information may be used for a physical broadcast channel (PBCH), a physical control format indicator channel (PCFICH), a physical hybrid ARQ indicator channel (PHICH), a physical downlink control channel (PDCCH), a group common PDCCH (GCPDCCH), etc. The data may be used for a physical downlink shared channel (PDSCH), etc. The processor 220 may process the data and control information (e.g., encode and symbol map them) to obtain data symbols and control symbols, respectively. The transmit processor 220 may also generate reference symbols such as for a primary synchronization signal (PSS), a secondary synchronization signal (SSS), a cell-specific reference signal (CRS), and a positioning reference signal (PRS). For NR systems, control information may 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 5G NR systems may include PBCH, PDCCH and PDSCH. Physical signals may 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).

[0057] The transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on ​​data symbols, control symbols, and / or reference symbols (if applicable), and may provide an output symbol stream to modulators (MODs) 232a to 232t. Each modulator 232 may process a corresponding output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each modulator may further process the output sample stream (e.g., convert it to analog, amplify it, filter it, and up-convert it) to obtain a downlink signal. The downlink signals from modulators 232a to 232t may be transmitted via antennas 234a to 234t, respectively.

[0058] At the UE 120, antennas 252a through 252t may receive downlink signals from the BS 110 and may provide received signals to demodulators (DEMODs) in transceivers 254a through 254r, respectively. Each demodulator 254 may condition (e.g., filter, amplify, downconvert, and digitize) a corresponding received signal to obtain input samples. Each demodulator may further process the input samples (e.g., for OFDM, etc.) to obtain received symbols. A MIMO detector 256 may obtain received symbols from all demodulators 254a through 254r, perform MIMO detection on the received symbols (if applicable), and provide detected symbols. A receive processor 258 may process (e.g., demodulate, deinterleave, and decode) the detected symbols, provide decoded data for the UE 120 to a data sink 260, and provide decoded control information to a controller / processor 280.

[0059] On the uplink, at the UE 120, a transmit processor 264 may receive and process data from a data source 262 (e.g., for a physical uplink shared channel (PUSCH)) and control information from a controller / processor 280 (e.g., for a physical uplink control channel (PUCCH)). The transmit processor 264 may also generate reference symbols for reference signals (e.g., for a sounding reference signal (SRS)). The symbols from the transmit processor 264 may be precoded by a TX MIMO processor 266 (if applicable), further processed by a demodulator in the transceivers 254a through 254r (e.g., for SC-FDM, etc.), and transmitted to the base station 110. At the BS 110, the uplink signal from the UE 120 may be received by the antenna 234, processed by the modulator 232, detected by the MIMO detector 236 (if applicable), and further processed by the receive processor 238 to obtain decoded data and control information transmitted by the UE 120. The receive processor 238 may provide the decoded data to a data sink 239 and the decoded control information to the controller / processor 240 .

[0060] Controllers / processors 240 and 280 may direct the operation at BS 110 and UE 120, respectively. Controller / processor 240 and / or other processors and modules at BS 110 may perform or direct the execution of processes for the techniques described herein. Memories 242 and 282 may store data and program codes for BS 110 and UE 120, respectively. Scheduler 244 may schedule UEs to transmit data on the downlink and / or uplink.

[0061] 5G NR wireless networks are expected to provide ultra-high data rates and support a wide range of application scenarios. Wireless full-duplex (FD) communication is an emerging technology and can theoretically double the link capacity when compared to half-duplex (HD) communication. The main idea of ​​wireless full-duplex communication is to enable radio network nodes to transmit and receive simultaneously on the same frequency band in the same time slot and / or symbol slot. This is in contrast to conventional half-duplex operation in which transmission and reception are different in time or frequency. The wireless communication network 100 can support various FD communication modes.

[0062] refer to Figure 3A , further reference Figure 1 and Figure 2 , a diagram 300 of a full-duplex communication mode with a full-duplex base station and a half-duplex UE is shown. The diagram includes a FD BS 302, an HD BS 304, a first HD UE 306, and a second HD UE 308. The FD BS 302 may communicate with both HD UEs 306, 308 simultaneously in UL and DL using the same radio resources. For example, the FD BS 302 may communicate with the first HD UE 306 via a downlink 310 and communicate with the second HD UE 308 using an 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 HD BS 304 and interference 316 from the second HD UE 308.

[0063] refer to Figure 3B , a diagram 330 of another full-duplex communication mode with a full-duplex base station and a full-duplex UE is shown. Diagram 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 via UL 334 and DL 332 using the same radio resources. HD BS 304 is communicating with HD UE 308 via DL 338. While communicating, 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 sent from HD UE 308.

[0064] refer to Figure 3C, an illustration 350 of another full-duplex communication mode with a full-duplex UE. Illustration 350 includes a first HDBS 352, a second HD BS 354, a FD UE 336, and a HD UE 308. The FD UE 336 is configured to communicate with multiple transmit / receive points (e.g., multiple BSs) simultaneously in UL and DL using the same radio resources. For example, the FD UE 336 can communicate with the first HD BS 352 via the UL 334, and simultaneously communicate with the second HD BS 354 via the DL 356. The FDUE 336 may be susceptible to self-interference 336a from UL to DL operation. In one example, both UE1 336 and UE 2 308 can be configured as FD UEs and are capable of full-duplex communication via a device-to-device (D2D) sidelink (e.g., PC5).

[0065] In addition to supporting various FD communication modes (also referred to herein as deployments), wireless communication systems may 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 transmit and receive at the same time and on the same frequency resource. Figure 4A As shown in 410 of FIG. 4 , in one aspect, the DL and UL may completely share the same IBFD time / frequency resources (eg, there may be complete overlap of DL and UL configurations within the IBFD time / frequency resources). Figure 4A As shown in 420, in one aspect, the DL and UL may partially share the same IBFD time / frequency resources (eg, there may be a partial overlap of DL and UL configurations within the IBFD time / frequency resources).

[0066] Sub-band FDD (also known as flexible duplexing) is another type of FD operation where devices can transmit and receive at the same time but on different frequency resources. Figure 4B As shown in diagram 430, DL resources may be separated from UL resources in the frequency domain by a guard band 432. Since leakage is lower, this operation mode reduces the self-interference cancellation requirements on the FD device.

[0067] refer to Figure 5 , further reference Figures 1 to 4B , shows an example spectrum 500 for a full-duplex base station and a half-duplex mobile device. In some aspects, there can be flexible DL / UL operation in time (across and within time slots) and across multiple UEs. Figure 5An example usage of time / frequency resources is shown for a FD BS 502 (e.g., gNB) and multiple HD UEs (e.g., UE 1, UE 2, and UE 3). As shown in spectrum 500, there can be simultaneous PDSCH grants and PUSCH grants for the same subframe / time slot (for different UEs).

[0068] refer to Figure 6 , further reference Figures 1 to 5 , an example spectrum 600 for a full-duplex base station and a full-duplex mobile device is shown. Figure 6 Another example use of time / frequency resources for FD BS 602 and FD UE is shown. As shown in spectrum 600, Figure 5 Compared to the spectrum 500 in FIG. 5 , there may be simultaneous PDSCH grants and PUSCH grants for the same subframe / time slot for the same UE (eg, UE 2) and / or different UEs. For example, for a FD UE (eg, UE 2), there may be simultaneous UL grants and DL grants.

[0069] refer to Fig. 7A and Figure 7B , shows an exemplary DL-PRS resource set. In general, a DL-PRS resource set is a collection of PRS resources with the same periodicity, common muting pattern configuration, and the same repetition factor across time slots across base stations (e.g., TRPs). A first DL-PRS resource set 702 includes 4 resources and a repetition factor of 4, and a time slot equals 1 time slot. A second DL-PRS resource set 704 includes 4 resources and a repetition factor of 4, and a time slot equals 4 time slots. The repetition factor indicates the number of times each PRS resource is repeated in each single instance of a PRS resource set (e.g., values ​​1, 2, 4, 6, 8, 16, 32). The time slot represents the offset in time slots between two repeated instances of the same PRS resource ID corresponding to a DL PRS resource within a single instance of a DL PRS resource set (e.g., values ​​1, 2, 4, 8, 16, 32). The duration spanned by one DL-PRS resource set including repeated DL PRS resources does not exceed the PRS periodicity. The repetition of DL PRS resources enables receiver beam scanning across the repetitions, and combined RF gain to increase coverage. The repetition can also enable intra-instance muting.

[0070] refer to Figure 8 , shows an example subframe and time slot format for positioning reference signal transmission. The example subframe and time slot format includes Fig. 7A and Figure 7B The DL-PRS resources are concentrated in the depicted figure. Figure 8The subframe and slot formats in are examples and not limitations, and include a format 802 of comb 2 with 2 symbols, a format 804 of comb 4 with 4 symbols, a format 806 of comb 2 with 12 symbols, a format 808 of comb 4 with 12 symbols, a format 810 of comb 6 with 6 symbols, a format 812 of comb 12 with 12 symbols, a format 814 of comb 2 with 6 symbols, and a format 816 of comb 6 with 12 symbols. In general, a subframe may include 14 symbol periods with indices from 0 to 13. The subframe and slot formats may be used for a physical broadcast channel (PBCH). Typically, a base station may transmit PRS from antenna port 6 on one or more slots in each subframe configured for PRS transmission. A base station may avoid transmitting PRS on resource elements configured for PBCH, a primary synchronization signal (PSS), or a secondary synchronization signal (SSS), regardless of its antenna port. A cell may generate reference symbols for PRS based on a cell ID, a symbol period index, and a slot index. Typically, a UE may be able to distinguish PRSs from different cells.

[0071] The base station may send DL PRSs over a specific PRS bandwidth that may be configured by higher layers. The base station may send PRSs on subcarriers spaced across the PRS bandwidth. The base station may also send PRSs based on, for example, a PRS periodicity T. PRS , subframe offset △ PRS and PRS duration N PRS The PRS is sent with the parameters of the PRS. The PRS periodicity is the periodicity with which the PRS is sent. For example, the PRS periodicity may be 160ms, 320ms, 640ms, or 1280ms. The subframe offset indicates a specific subframe in which the PRS is sent. And the PRS duration indicates the number of consecutive subframes in which the PRS is sent in each period (PRS opportunity) of PRS transmission. The PRS duration may be, for example, 1ms, 2ms, 4ms, or 6ms.

[0072] The index I can be configured via PRS PRS To convey PRS periodicity TPRS and subframe offset △ PRS The PRS configuration index and PRS duration can be independently configured by the higher layer. PRS A set of consecutive subframes may be referred to as a PRS opportunity. Each PRS opportunity may be enabled or muted, for example, the UE may apply a muting bit to each cell. Cells that may be muted in the next PRS opportunity should not be measured. A PRS resource set is a set of PRS resources with the same periodicity, common muting pattern configuration, and the same repetition factor across time slots (e.g., 1, 2, 4, 6, 8, 16, 32 time slots) across base stations.

[0073] In one example, the positioning frequency layer can be a set of PRS resource sets across one or more base stations. The positioning frequency layer can have the same subcarrier spacing (SCS) and cyclic prefix (CP) type, the same point A, the same DL PRS bandwidth value, the same starting PRB, and the same comb size value. The parameter set (numerology) supporting PDSCH supports PRS.

[0074] refer to Fig. 9 , an example spectrum 900 for a sub-band full-duplex positioning reference signal (PRS) is shown. Spectrum 900 is an example use of time / frequency resources (such as full-duplex spectrum 500, full-duplex spectrum 600) of an FD UE with added PRS resources. 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 region and does not overlap with the uplink region (e.g., PUSCH). The second DL PRS transmission 904 and the third DL PRS transmission 906 overlap with the uplink region. In previous systems, when measurement gaps are not configured, the UE is only required to measure DL PRS within the active DL BWP and with the same parameter set as the active DL BWP. If measurement gaps are not provided to the UE, it is not expected that the UE processes DL PRS resources on the serving cell or non-serving cell on any symbol indicated as UL by the serving cell. Therefore, in current systems, the second DL PRS transmission 904 and the third DL PRS transmission 906 will not be processed by the UE and therefore they are wasted transmissions.The techniques provided herein overcome this limitation and enable the UE to process DL PRS resources in a full-duplex spectrum.

[0075] In one example, a BS 110 or other resource in a wireless communication network 100 may configure PRS resources based on whether a time slot is in a half-duplex (HD) region or in a full-duplex (FD) region. The positioning frequency layer may be extended by including a field or other information element (IE) to indicate information of the time slot category (HD or FD) in the definition of the positioning frequency layer. The positioning frequency layer may include a collection of PRS resource sets having the same kind of HD time slots or FD time slots across one or more base stations (e.g., TRPs). The network may configure PRS separately for FD operation and HD operation. For example, one positioning frequency layer may be configured for FD time slots, and another positioning frequency layer may be provided for HD time slots.

[0076] In another example, PRS resources may be configured across a wide bandwidth, and the PRS resources may span an HD region and an FD region. In this example, the UE may be configured to process DL PRS resources based on the capabilities of the UE. For example, the UE may report its capabilities as an HD UE (i.e., cannot transmit and receive at the same time) or an FD UE (i.e., can transmit and receive at the same time). The HD UE may be configured to skip DL PRS reception / processing that may occur during the UL region. For example, the HD UE may process the first DL PRS transmission 902, and skip the second DL PRS reception / processing and the third DL PRS reception / processing (i.e., based on the second DL PRS transmission 904 and the third DL PRS transmission 906). The FD UE may be configured to process a DL PRS transmission or a portion of a DL PRS transmission that does not conflict with a UL sub-band. For example, the FD UE may process the first DL PRS transmission 902, the second DL PRS transmission 904, and the third DL PRS transmission 906, excluding the first conflicting sub-band portion 904a and the second conflicting sub-band portion 906a. The processing of the second DL PRS transmission 904 and the third DL PRS transmission 906 will produce reasonable correlation peaks and achieve position estimation while excluding the corresponding conflicting sub-band portions 904a, 906a. In one example, the processed portions of the second DL PRS transmission 904 and the third DL PRS transmission 906 can be correlated with the first DL PRS transmission 902 to generate a correlation peak.

[0077] refer to Fig.10, an example spectrum 1000 for in-band full-duplex positioning reference signal (PRS) transmission is shown. In one example, to avoid bandwidth part (BWP) switching delays, DL PRS transmission can be configured and processed within an indicated resource bandwidth (BW) within an active BWP. An active DL BWP 1001 can span an 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 mutually exclusive set of frequency resources across the DL BWP 1001 (i.e., it is not continuous across the DL BWP 1001). The second resource BW 1004 includes frequencies outside the active UL BWP 1006. The resource BW 1002, the resource BW 1004 can be configured via radio resource control (RRC) signaling, and the indication of the resource BW can be dynamic (e.g., based on downlink control information (DCI)). The first resource BW 1002 includes a first DL PRS transmission 1012, and the second resource BW 1004 includes a second DL PRS transmission 1014. In current systems, if a PRS measurement gap is not provided, it is not expected that the UE measures a DL PRS that does not utilize the entire active DL BWP 1001. Therefore, current UEs can utilize the first DL PRS transmission 1012, but cannot utilize the second DL PRS transmission 1014.

[0078] In one example, the UE may be configured as an HD UE or a FD UE based on its capabilities. The HD UE may be configured to process the first DL PRS transmission 1012 and skip the second DL PRS reception / processing (i.e., PRS in the full-duplex region). The performance of the FD UE may differ based on the type of full-duplex operation. Fig.10 1006. Sub-band full duplex (SBFD) is shown where the resource BWs do not overlap. In SBFD operation, the FD UE can process the first DL PRS transmission 1012 and the second DL PRS transmission 1014 because the second DL PRS transmission 1014 does not overlap with the active UL BWP 1006. In intra-band full duplex (IBFD) operation, the active UL BWP 1006 can be extended to create a partial overlap between the UL resource BW and the DL resource BW. For example, the active UL BWP 1006 can be extended Fig.10The amount of expansion 1006a will result in an overlap region 1008 with the active UL BWP in the second DL PRS transmission 1014. The overlap region 1008 indicates the portion of the sub-band where the UL resources and the DL resources are colliding. In IBFD operation, the FD UE can be configured to process the portion of the DL PRS transmission that does not conflict with the active UL BWP. For example, the FD UE can be configured to process the portion of the second DL PRS transmission 1014 that is not within the overlap region 1008.

[0079] refer to Fig.11 , further reference Figures 1 to 10 , a method 1100 for configuring a network for half-duplex operation and full-duplex operation includes the stages shown. However, the method 1100 is only an example and not limiting. The method 1100 can be changed, for example, by adding, removing, rearranging, combining, performing stages simultaneously, and / or dividing a single stage into multiple stages.

[0080] At stage 1102, the method includes configuring a first positioning frequency layer for full-duplex operation. The base station 110 or other network server is a component for configuring the positioning frequency layer. The UE can be configured with one or more DL PRS positioning frequency layer configurations based on high-level parameters (e.g., DL-PRS-PositioningFrequencyLayer). The positioning frequency layer consists of one or more PRS resource sets and can be defined by the subcarrier spacing (SCS) for the DL PRS resources, the cyclic prefix (CP) for the DL PRS resources, and the absolute frequency of the reference resource block (PointA). The UE can also be configured with one or more DL PRS resource set configurations. Each DL PRS resource set can include an ID, a periodicity value, a repetition factor, a time slot offset, a silent pattern, a time slot offset value, a comb size, and the number of resource blocks configured for PRS transmission (see 3GPP TS 38.214 Version 16). The DL PRS positioning frequency layer configuration may be extended to include a slot class field to associate the frequency configuration with full duplex (FD) operation or half duplex (HD) operation. In one example, the positioning frequency layer may include information for FD D2D operation and HD D2D operation. At stage 1102, the slot class field may be updated to indicate that the first positioning frequency layer is configured for full duplex operation, and at stage 1104, the slot class field may be updated to indicate that the second positioning frequency layer is configured for half duplex operation.

[0081] At stage 1106, the method includes providing a first positioning frequency layer to a first mobile device. Base station 110 is a component for providing a positioning frequency layer. The first mobile device may be a UE configured for full-duplex operation. Base station 110 may be configured to provide a DL PRS resource set to the UE via a messaging protocol such as RRC. The first mobile device may utilize the DL PRS resource set to process a UE that may span (such as Fig. 9 and Fig.10 At stage 1108, the base station may provide a second positioning frequency layer to the mobile device configured for half-duplex operation. For example, the DL PRS resource set in the second positioning frequency layer may enable the HD UE to skip the reception / processing of the DL PRS, which may span (such as Fig. 9 and Fig.10 ) DL area and UL area depicted in .

[0082] refer to Fig.12 , further reference Fig. 9 , a method 1200 for processing a positioning reference signal in a sub-band full-duplex scenario includes the stages shown. However, the method 1200 is only an example and not limiting. The method 1200 can be changed, for example, by adding, removing, rearranging, combining, performing stages simultaneously, and / or splitting a single stage into multiple stages.

[0083] At stage 1202, the method includes receiving a positioning reference signal in a time slot, wherein the positioning reference signal spans a first frequency bandwidth. UE 120 is a component for receiving a positioning reference signal. UE 120 may be configured for full-duplex operation. Base station 110 is configured to send a PRS signal based on parameters determined in an advanced application and distributed via a signaling message such as RRC. In one example, the UE may be configured to send a PRS signal for a FD D2D positioning application. UE 120 is configured to receive and process PRS transmissions in the indicated time slot. As used herein, the term time slot may also include symbol time slots (such as defined in the NR specification). For example, UE 120 may receive a second DL PRS transmission 904 that spans a first frequency bandwidth and may include both a downlink region and an uplink region.

[0084] At stage 1204, the method includes sending a signal in a second frequency bandwidth during the time slot, wherein the second frequency bandwidth includes frequencies within the first frequency bandwidth. UE 120 is a component for sending a signal in a time slot. UE 120 can be configured as a FD UE capable of simultaneously sending and receiving signals. UE 120 can receive one or more control messages from a base station to configure the first frequency bandwidth and the second frequency bandwidth. In one example, the first bandwidth and the second bandwidth can be configured using radio resource control (RRC) signaling. Fig. 9 As depicted in , UE 120 may transmit UL data during a time slot or symbol slot in which a second DL PRS transmission 904 is being received (e.g., via PUSCH). The second DL PRS transmission 904 spans the DL region and the UL region of the spectrum 900. A sub-band portion 904a of the second DL PRS transmission 904 conflicts with the UL region. In one example, UE 120 may communicate with an FD base station so that a PRS signal may be received from the FD base station, and the UE may send a signal to the FD base station (e.g., Figure 3B In one example, UE 120 may be configured to communicate with multiple base stations such that PRS may be received from a first base station and transmissions from the UE may be uplinks to a second base station (e.g., Figure 3C ).

[0085] At stage 1206, the method includes processing a positioning reference signal received in the first frequency bandwidth excluding the frequency in the second frequency bandwidth. UE 120 is a component for processing PRS signals. For example, UE 120 is configured to process a second DL PRS transmission 904 that is not included in the sub-band portion 904a. While excluding the conflicting sub-band portion 904a, the processing of the second DL PRS transmission 904 will produce a reasonable correlation peak and achieve position estimation. In an example, the processed portion of the second DL PRS transmission 904 can be correlated with the first DL PRS transmission 902 to generate a correlation peak.

[0086] refer to Fig.13 , further reference Fig.10 , a method 1300 for processing a positioning reference signal in an intra-band full-duplex scenario includes the stages shown. However, the method 1300 is only an example and not limiting. The method 1300 can be changed, for example, by adding, removing, rearranging, combining, performing stages simultaneously, and / or dividing a single stage into multiple stages.

[0087] At stage 1302, the method includes receiving a positioning reference signal in a downlink resource bandwidth portion. UE 120 is a component for receiving a positioning reference signal. UE 120 may be configured for full-duplex operation. Base station 110 is configured to send a PRS signal based on parameters determined in an advanced application and distributed via a signaling message such as RRC. UE 120 is configured to receive and process PRS transmissions in a configured bandwidth portion (BWP). For example, UE 120 may be configured to receive configuration parameters for a first resource BW 1002 and a second resource BW 1004. Resource BW 1002, resource BW 1004 include a corresponding first DL PRS transmission 1012 and a second DL PRS transmission 1014.

[0088] At stage 1304, the method includes sending a signal in an uplink resource bandwidth portion, wherein the uplink resource bandwidth portion overlaps at least a portion of the downlink resource bandwidth portion. UE 120 is a component for sending a signal in an uplink resource bandwidth portion. UE 120 can be configured as a FDUE capable of simultaneously sending and receiving signals. For example, Fig.10 As depicted, UE 120 may simultaneously transmit UL data in extended UL BWP 1006a (e.g., via PUSCH) while receiving second resource BW 1004 including second DL PRS transmission 1014. In one example, UE 120 may communicate with an FD base station such that a PRS signal may be received from the FD base station, and the UE may transmit a signal to the FD base station (e.g., Figure 3B In one example, UE 120 may be configured to communicate with multiple base stations such that PRS may be received from a first base station and transmissions from the UE may be uplinks to a second base station (e.g., Figure 3C ).

[0089] At stage 1306, the method includes processing a positioning reference signal received in a portion of the downlink resource bandwidth portion that does not overlap with the uplink resource bandwidth portion. UE 120 is a component for processing PRS signals. In an example, the extended UL BWP 1006a overlaps with the second resource BW 1004. UE 120 is configured to process a second DL PRS transmission 1014 that is not included in the overlap region 1008. While excluding the overlap region 1008, the processing of the second DL PRS transmission 1014 will produce a reasonable correlation peak and achieve a position estimate. In an example, the processed portion of the second DL PRS transmission 1014 can be correlated with the first DL PRS transmission 1012 to generate a correlation peak.

[0090] like Fig.14The computer system shown may be incorporated as part of the previously described computerized devices such as BS 110, UE 120, and network controller 130. The computer system 1400 may be configured to perform the methods provided by various other embodiments as described herein, and / or may act as a network server, mobile device, and / or computer system. It should be noted that Fig.14 It is meant only to provide a generalized illustration of the various components, any or all of which may be utilized as appropriate. Fig.14 It is broadly shown how various system elements may be implemented in a relatively discrete or relatively more integrated manner.

[0091] Computer system 1400 is shown as including hardware elements that may be electrically coupled via bus 1405 (or may communicate in other ways, as appropriate). The hardware components may include: one or more processors 1410, which include but are not limited to one or more general-purpose processors and / or one or more special-purpose processors (such as digital signal processing chips, graphics acceleration processors, etc.); one or more input devices 1415, which may include but are not limited to a mouse, keyboard, etc.; and one or more output devices 1420, which may include but are not limited to a display device, a printer, etc.

[0092] The computer system 1400 may also include (and / or communicate with) one or more non-transitory storage devices 1425, which may include, but are not limited to, local 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 other storage devices. " RAM ” ) and / or read-only memory ( " ROM ” ) (may be programmable, flash-updatable), etc. Such storage devices may be configured to implement any appropriate data storage, including but not limited to various file systems, database structures, etc.

[0093] The computer system 1400 may also include a communication subsystem 1430, which may include but is not limited to a modem, a network card (wireless network card or wired network card), an infrared communication device, a wireless communication device, and / or a chipset (such as a processor). Device, 802.11 device, Wi-Fi device, WiMax device, cellular communication facilities, etc.) and the like. The communication subsystem 1430 can allow data to be exchanged with a network, other computer systems, and / or any other device described herein. In many embodiments, the computer system 1400 will further include a working memory 1435, which may include a RAM or ROM device as described above.

[0094] The computer system 1400 may also include software elements shown as being located within the working memory 1435, including an operating system 1440, device drivers, executable libraries, and / or other code, such as one or more application programs 1445, which may include computer programs provided by various embodiments, and / or may be designed to implement methods provided by other embodiments and / or configure systems provided by other embodiments as described herein. Merely by way of example, one or more programs described with respect to the methods discussed above may be implemented as code and / or instructions executable by a computer (and / or a processor within a computer); in one aspect, such code and / or instructions may then be used to configure and / or adjust a general purpose computer (or other device) to perform one or more operations according to the described methods.

[0095] A set of these instructions and / or codes may be stored on a computer-readable storage medium, such as the storage device 1425 described above. In some cases, the storage medium may be incorporated into a computer system (such as the system 1400). In other embodiments, the storage medium may be separate from the computer system (e.g., a removable medium such as an optical disk), and / or provided in an installation package so that the storage medium may be used to program, configure, and / or adjust a general-purpose computer having the instructions / code stored thereon. These instructions may take the form of executable code that may be executed by the computer system 1400, and / or may take the form of source code and / or installable code that then takes the form of executable code when compiled and / or installed on the computer system 1400 (e.g., using any of a variety of general-purpose compilers, installers, compression / decompression utilities, etc.).

[0096] It will be apparent to those skilled in the art that substantial changes may be made depending on specific requirements. For example, custom hardware may also be used, and / or specific elements may be implemented in hardware, software (including portable software, such as applets), or both. In addition, connections to other computing devices, such as network input / output devices, may be employed.

[0097] As mentioned above, in one aspect, some embodiments may employ a computer system (such as computer system 1400) to perform methods according to various embodiments of the invention. According to one set of embodiments, in response to processor 1410 executing one or more sequences of one or more instructions contained in working memory 1435 (which may be incorporated into operating system 1440 and / or other code such as application program 1445), computer system 1400 performs some or all of the procedures of such methods. Such instructions may be read into working memory 1435 from another computer-readable medium (such as one or more of storage devices 1425). By way of example only, execution of the sequences of instructions contained in working memory 1435 may cause processor 1410 to perform one or more procedures of the methods described herein.

[0098] As used herein " Machine readable medium ” and " Computer readable medium ” Refers to any medium that participates in providing data that causes a machine to operate in a particular manner. In an embodiment implemented using computer system 1400, various computer-readable media may be involved in providing instructions / codes for execution to processor 1410 and / or may be used to store and / or carry such instructions / codes (e.g., as signals). In many embodiments, computer-readable media are physical and / or tangible storage media. The medium may be in many forms, including (but not limited to) non-volatile media, volatile media, and transmission media. Non-volatile media may include, for example, optical disks and / or disks, such as storage devices 1425. Volatile media include, but are not limited to, dynamic memory (such as working memory 1435). Transmission media include, but are not limited to, coaxial cables, copper wires, and optical fibers (which include wires including bus 1405) and various components of communication subsystem 1430 (and / or the medium through which communication subsystem 1430 provides communication with other devices). Therefore, the transmission medium may also take the form of waves (including, but not limited to, radio waves, sound waves, and / or light waves, such as waves generated during radio wave and infrared data communications).

[0099] Common forms of physical and / or tangible computer readable media include, for example, a floppy disk, a diskette, a hard disk, magnetic tape, any other magnetic medium, a CD-ROM, any other optical medium, any other physical medium with a perforated pattern, a RAM, a PROM, an EPROM, a FLASH-EEPROM, any other memory chip or cartridge, a carrier wave as described below, or any other medium from which a computer can read instructions and / or code.

[0100] Various forms of computer-readable media may be involved in carrying one or more sequences of one or more instructions to processor 1410 for execution. By way of example only, the instructions may initially be carried on a magnetic disk and / or optical disk of a remote computer. The remote computer may load the instructions into its dynamic memory and issue the instructions as signals on a transmission medium to be received and / or executed by computer system 1400. These signals (which may be in the form of electromagnetic signals, acoustic signals, optical signals, etc.) are all examples of carrier waves on which instructions may be encoded according to various embodiments of the present invention.

[0101] The communication subsystem 1430 (and / or its components) will typically receive the signal, and the bus 1405 may then carry the signal (and / or the data, instructions, etc. carried by the signal) to the working memory 1435, from which the processor 1405 retrieves and executes the instructions. The instructions received by the working memory 1435 may optionally be stored on the storage device 1425 before or after execution by the processor 1410.

[0102] refer to Fig.15 , a schematic diagram of a mobile device 1500 according to an embodiment is shown. Figure 1 The UE 120 shown in FIG. 1 may include Fig.15 1500. In some embodiments, the mobile device 1500 may include a wireless transceiver 1521 that is capable of sending and receiving wireless signals 1523 over a wireless communication network via a wireless antenna 1522. The wireless transceiver 1521 may be connected to the bus 1501 by a wireless transceiver bus interface 1520. In some embodiments, the wireless transceiver bus interface 1520 may be at least partially integrated with the wireless transceiver 1521. Some embodiments may include multiple wireless transceivers 1521 and wireless antennas 1522 to communicate with each other in accordance with corresponding multiple wireless communication standards (such as, for example, versions of IEEE Standard 802.11, CDMA, WCDMA, LTE, UMTS, GSM, AMPS, Zigbee, and a 5G or NR radio interface defined by 3GPP) to transmit and / or receive signals in full-duplex mode or half-duplex mode. In a specific embodiment, the wireless transceiver 1521 can receive and acquire downlink signals including ground positioning signals (such as DL PRS). For example, the wireless transceiver 1521 can fully process the acquired ground positioning signals to detect the timing of the acquired ground positioning signals.

[0103] The mobile device 1500 may include an SPS receiver 1555 that is capable of receiving and acquiring SPS signals 1559 via an SPS antenna 1552 (which, in some embodiments, may be the same as antenna 1522). The SPS receiver 1555 may process the acquired SPS signals 1559 in whole or in part to estimate the location of the mobile device 1500. One or more general purpose processors 1511, memory 1540, one or more digital signal processors (DSPs) 1512, and / or a dedicated processor (not shown) may be utilized to process the acquired SPS signals in whole or in part and / or calculate the estimated location of the mobile device 1500 in conjunction with the SPS receiver 1555. Storage of SPS, TPS, or other signals (e.g., signals acquired from the wireless transceiver 1521) or storage of measurements of these signals for performing positioning operations may be performed in the memory 1540 or in registers (not shown). The general processor 1511, the memory 1540, the DSP 1512, and / or a dedicated processor may provide or support a positioning engine for processing measurements to estimate the location of the mobile device 1500. For example, the general processor 1511 or the DSP 1512 may process downlink signals acquired by the wireless transceiver 1521 to measure RSSI, RTT, AOA, TOA, RSTD, RSRQ, and / or RSRQ, for example.

[0104] Fig.15 1501. As also shown, the DSP 1512 and the general purpose processor 1511 may be connected to the memory 1540 via the bus 1501. A specific bus interface (not shown) may be integrated with the DSP 1512, the general purpose processor 1511, and the memory 1540. In various embodiments, the functions may be performed in response to the execution of one or more machine-readable instructions stored in the memory 1540 (such as, to name a few, RAM, ROM, FLASH, or disk drive) (such as on a computer-readable storage medium). The one or more instructions may be executed by the general purpose processor 1511, the special purpose processor, or the DSP 1512. The memory 1540 may include a non-transitory processor-readable memory and / or a computer-readable memory that stores software code (programming code, instructions, etc.) that can be executed by the processor 1511 and / or the DSP 1512 to perform the functions described herein.

[0105] Fig.151500 . It is also shown that the user interface 1535 may include any of several devices (such as, for example, a speaker, a microphone, a display device, a vibration device, a keyboard, a touch screen, to name a few). In a specific embodiment, the user interface 1535 may enable a user to interact with one or more applications hosted on the mobile device 1500. For example, the device of the user interface 1535 may store analog signals and / or digital signals on the memory 1540 to be further processed by the DSP 1512 or the general processor 1511 in response to an action from the user. Similarly, the application hosted on the mobile device 1500 may store analog signals or digital signals on the memory 1540 to present output signals to the user. The mobile device 1500 may optionally include a dedicated audio input / output (I / O) device 1570, which includes, for example, a dedicated speaker, a microphone, a digital-to-analog circuit, an analog-to-digital circuit, an amplifier, and / or a gain control. This is merely an example of how to implement audio I / O in a mobile device, and the subject matter claimed for protection is not limited in this regard. The mobile device 1500 may include a touch sensor 1562 in response to a touch or pressure on a keyboard or touch screen device.

[0106] The mobile device 1500 may include a dedicated camera device 1564 for capturing still or moving images. The camera device 1564 may include, for example, an imaging sensor (e.g., a charge coupled device or CMOS imager), a lens, analog-to-digital circuits, a frame buffer, to name a few. Additional processing, conditioning, encoding, and / or compression of signals representing the captured images may be performed at the general / application processor 1511 and / or the DSP 1512. A dedicated video processor 1562 may perform conditioning, encoding, compression, or manipulation of signals representing the captured images. The video processor 1568 may decode / decompress the stored image data for presentation on a display device (not shown) on the mobile device 1500.

[0107] The mobile device 1500 may also include sensors 1560 coupled to the bus 1501, which may include, for example, inertial sensors and environmental sensors. The inertial sensors of the sensors 1560 may include, for example, an accelerometer (e.g., responsive to the acceleration of the mobile device 1500 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 the mobile device 1500 may include, for example, a temperature sensor, an atmospheric pressure sensor, an ambient light sensor, a camera imager, a microphone, to name a few. The sensors 1560 may generate analog signals and / or digital signals, which may be stored in the memory 1540 and processed by the DSP 1512 or the general application processor 1511 to support one or more applications (such as, for example, applications for positioning operations or navigation operations).

[0108] The mobile device 1500 may include a dedicated modem processor 1566 that is capable of performing baseband processing of signals received and down-converted at the wireless transceiver 1521 or SPS receiver 1555. The modem processor 1566 may perform baseband processing of signals to be up-converted by the wireless transceiver 1521 for transmission. In alternative embodiments, instead of having a dedicated modem processor, baseband processing may be performed by a general purpose processor or DSP (e.g., general purpose / application processor 1511 or DSP 1512). These are merely examples of structures that may perform baseband processing, and claimed subject matter is not limited in this respect.

[0109] Also refer to Fig.16, an example of a TRP 1600 of BS110a-c includes a computing platform including a processor 1610, a memory 1611 including software (SW) 1612, a transceiver 1615, and (optionally) an SPS receiver 1617. The processor 1610, the memory 1611, the transceiver 1615, and the SPS receiver 1617 may be communicatively coupled to each other via a bus 1620 (which may be configured, for example, for optical and / or electrical communication). One or more of the devices shown (e.g., a wireless interface and / or an SPS receiver 1617) may be omitted from the TRP 1600. The SPS receiver 1617 may be configured similarly to the SPS receiver 1517 to be able to receive and acquire an SPS signal 1660 via an SPS antenna 1662. The processor 1610 may include one or more intelligent hardware devices, such as a central processing unit (CPU), a microcontroller, an application specific integrated circuit (ASIC), etc. The processor 1610 may include multiple processors (e.g., including a general / application processor, a DSP, a modem processor, a video processor, and / or a sensor processor). The memory 1611 is a non-transitory storage medium, which may include a random access memory (RAM), a flash memory, an optical disk memory, and / or a read-only memory (ROM), etc. The memory 1611 stores software 1612, which may be a processor-readable, processor-executable software code containing instructions, which are configured to cause the processor 1610 to perform various functions described herein when executed. Alternatively, the software 1612 may not be directly executable by the processor 1610, but may be configured to cause the processor 1610 to perform functions, for example, when compiled and executed. The specification may only mention that the processor 1610 performs functions, but this includes other embodiments, such as the processor 1610 executing software and / or firmware. The specification may refer to one or more execution functions in the processor contained in the processor 1610 as the processor 1610 performing functions. The description may refer to TRP 1600 performing a function as shorthand for one or more appropriate components of TRP 1600 (and thus one of BSs 110a-c) to perform that function. Processor 1610 may include a memory with stored instructions in addition to or in lieu of memory 1611. The functionality of processor 1610 is discussed more fully below.

[0110] The transceiver 1615 may include a wireless transceiver 1640 and a wired transceiver 1650 configured to communicate with other devices via wireless and wired connections, respectively. For example, the wireless transceiver 1640 may include a transmitter 1642 and a receiver 1644 coupled to one or more antennas 1646 for transmitting (e.g., on one or more uplink channels) and / or receiving (e.g., on one or more downlink channels) wireless signals 1648 and converting signals from the wireless signals 1648 to wired (e.g., electrical and / or optical) signals and from wired (e.g., electrical and / or optical) signals to the wireless signals 1648. Thus, the transmitter 1642 may include multiple transmitters that may be discrete components or combined / integrated components, and / or the receiver 1644 may include multiple receivers that may be discrete components or combined / integrated components. The wireless transceiver 1640 may be configured to transmit signals (e.g., to communicate with the UE 1500, one or more UEs, and / or one or more other devices) according to a plurality of radio access technologies (RATs), such as 5G New Radio (NR), GSM (Global System for Mobile Communications), UMTS (Universal Mobile Telecommunications System), AMPS (Advanced Mobile Phone 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 IEEE802.11p), WiFi, WiFi Direct (WiFi-D), Zigbee, etc. The wired transceiver 1650 may include a transmitter 1652 and a receiver 1654, which are configured for wired communication with the network controller 130, for example, to send communications to the network controller 130 and receive communications from the network controller. The transmitter 1652 may include multiple transmitters that may be discrete components or combined / integrated components, and / or the receiver 1654 may include multiple receivers that may be discrete components or combined / integrated components. The wired transceiver 1650 may be configured, for example, for optical communication and / or electrical communication.

[0111] Fig.16 The configuration of TRP 1600 shown in is an example and is not a limitation of the present invention, including the claims, and other configurations may be used. For example, the description herein discusses TRP 1600 being configured to perform several functions or TRP performing several functions, but one or more of these functions may be performed by computer 1400 and / or UE 1500 (i.e., UE 1500 may be configured to perform one or more of these functions).

[0112] The methods, systems, and devices discussed above are examples. Various configurations may omit, replace, or add various processes or components as appropriate. For example, in alternative configurations, the method may be performed in an order different from that described, and / or various stages may be added, omitted, and / or combined. In addition, features described with respect to certain configurations may be combined with various other configurations. Different aspects and elements of the configurations may be combined in a similar manner. Furthermore, technology is evolving, and therefore many of the elements are examples and do not limit the scope of the present disclosure or claims.

[0113] Specific details are given in the description to provide a thorough understanding of the example configurations including the embodiments. However, the configurations can be practiced without these specific details. For example, known circuits, processes, algorithms, structures, and techniques have been shown without unnecessary details to avoid obscure configurations. This description only provides example configurations and does not limit the scope, practicality, or configuration of the claims. On the contrary, the foregoing description of the configuration will provide a feasible description for implementing the described technology to those skilled in the art. Various changes may be made to the functions and arrangements of the elements without departing from the spirit or scope of the present disclosure.

[0114] In addition, the configuration can be described as a program depicted as a schematic flow chart or block diagram. Although each operation can be described as a sequential program, many operations can be performed in parallel or simultaneously. In addition, the order of operations can be rearranged. The process can have additional steps not included in the figure. In addition, the example of the method can be implemented by hardware, software, firmware, middleware, microcode, hardware description language, or any combination thereof. When implemented in software, firmware, middleware, or microcode, the program code or code segment for performing the necessary tasks can be stored in a non-temporary computer-readable medium such as a storage medium. The processor can perform the described tasks.

[0115] After describing several example configurations, various modifications, alternative configurations, and equivalents may be used without departing from the spirit of the present disclosure. For example, the above elements may be components of a larger system, in which other rules may take precedence over or otherwise modify the application of the present invention. In addition, several steps may be performed before, during, or after considering the above elements. Therefore, the above description does not limit the scope of the claims.

Claims

1. A method for wireless communication by a user equipment UE, comprising: receiving a positioning reference signal in a time slot, wherein the positioning reference signal spans a first frequency bandwidth; transmitting a signal in a second frequency bandwidth during the time slot, wherein the second frequency bandwidth includes frequencies within the first frequency bandwidth; and processing the positioning reference signal received in the first frequency bandwidth excluding the frequencies in the second frequency bandwidth.

2. The method according to claim 1, wherein, the positioning reference signal is received from a first base station, and the signal transmitted in the second frequency bandwidth is transmitted to the first base station.

3. The method according to claim 1, wherein, the positioning reference signal is received from a first base station, and the signal transmitted in the second frequency bandwidth is transmitted to a second base station.

4. The method according to claim 1, further comprising receiving one or more radio resource control signals to configure the first frequency bandwidth and the second frequency bandwidth.

5. The method according to claim 1, wherein, processing the positioning reference signal includes comparing the positioning reference signal received in the first frequency bandwidth with a previous positioning reference signal received in a previous time slot.

6. The method according to claim 1, wherein, the duration of the time slot is approximately between 1 millisecond and 6 milliseconds.

7. The method according to claim 1, wherein, the positioning reference signal is one of a plurality of positioning reference signals received by the user equipment, and each of the plurality of positioning reference signals has the same subcarrier spacing and cyclic prefix.

8. A method for wireless communication by a user equipment UE, comprising: receiving a positioning reference signal in a downlink resource bandwidth part; transmitting a signal in an uplink resource bandwidth part, wherein the uplink resource bandwidth part overlaps at least a part of the downlink resource bandwidth part; and processing the positioning reference signal received in a part of the downlink resource bandwidth part that does not overlap with the uplink resource bandwidth part.

9. The method according to claim 8, wherein, the positioning reference signal is received from a first base station, and the signal in the uplink resource bandwidth part is transmitted to the first base station.

10. The method according to claim 8, wherein, the positioning reference signal is received from a first base station, and the signal in the uplink resource bandwidth part is transmitted to a second base station.

11. The method according to claim 8, further comprising receiving one or more radio resource control signals to configure the downlink resource bandwidth part and the uplink resource bandwidth part.

12. The method according to claim 8, further comprising receiving one or more downlink control information signals to configure the downlink resource bandwidth part and the uplink resource bandwidth part.

13. The method according to claim 8, wherein, The positioning reference signal is received in a first time slot, and processing the positioning reference signal includes comparing the positioning reference signal received in the first time slot with a previous positioning reference signal received in a previous time slot.

14. The method according to claim 13, wherein, the duration of the first time slot is approximately between 1 millisecond and 6 milliseconds.

15. The method according to claim 8, wherein, the positioning reference signal is one of a plurality of positioning reference signals received by the user equipment, and each of the plurality of positioning reference signals has the same subcarrier spacing and cyclic prefix.

16. The method according to claim 8, wherein, the downlink resource bandwidth portion includes a mutually exclusive set of frequency resources.

17. An apparatus for wireless communication, comprising: a memory; at least one transceiver; and at least one processor communicatively coupled to the memory and the at least one transceiver, wherein: the at least one transceiver is configured to: receive a positioning reference signal in a time slot, wherein the positioning reference signal spans a first frequency bandwidth; and transmit a signal in a second frequency bandwidth during the time slot, wherein the second frequency bandwidth includes frequencies within the first frequency bandwidth; and the at least one processor is configured to process the positioning reference signal received in the first frequency bandwidth excluding the frequencies in the second frequency bandwidth.

18. The apparatus according to claim 17, wherein, the positioning reference signal is received from a first base station and the signal is transmitted to the first base station.

19. The apparatus according to claim 17, wherein, the positioning reference signal is received from a first base station and the signal is transmitted to a second base station.

20. The apparatus according to claim 17, wherein, the at least one transceiver is further configured to receive one or more radio resource control signals to configure the first frequency bandwidth and the second frequency bandwidth.

21. The apparatus according to claim 17, wherein, the at least one processor is configured to compare the positioning reference signal received in the first frequency bandwidth with a previous positioning reference signal received in a previous time slot.

22. The apparatus according to claim 17, wherein, the duration of the time slot is approximately between 1 millisecond and 6 milliseconds.

23. The apparatus according to claim 17, wherein, the positioning reference signal is one of a plurality of positioning reference signals received by the at least one transceiver, and each of the plurality of positioning reference signals has the same subcarrier spacing and cyclic prefix.

24. An apparatus for wireless communication, comprising: a memory; at least one transceiver; and at least one processor communicatively coupled to the memory and the at least one transceiver, wherein: the at least one transceiver is configured to: receive a positioning reference signal in a downlink resource bandwidth portion; and transmitting a signal in an uplink resource bandwidth portion, wherein the uplink resource bandwidth portion overlaps at least a portion of the downlink resource bandwidth portion; and The at least one processor is configured to process the positioning reference signal received in a portion of the downlink resource bandwidth portion that does not overlap with the uplink resource bandwidth portion.

25. The device according to claim 24, in, The positioning reference signal is received from a first base station and the signal is sent to the first base station.

26. The device according to claim 24, in, The positioning reference signal is received from a first base station and the signal is sent to a second base station.

27. The device according to claim 24, in, The at least one transceiver is further configured to receive one or more radio resource control signals to configure the downlink resource bandwidth portion and the uplink resource bandwidth portion.

28. The apparatus of claim 24, further comprising receiving one or more downlink control information signals to configure the downlink resource bandwidth portion and the uplink resource bandwidth portion.

29. The device according to claim 24, in, The positioning reference signal is received in a first time slot, and the at least one processor is configured to compare the positioning reference signal received in the first time slot with a previous positioning reference signal received in a previous time slot.

30. The device according to claim 29, in, The duration of the first time slot is approximately between 1 millisecond and 6 milliseconds.

31. The device according to claim 24, in, The positioning reference signal is one of a plurality of positioning reference signals received by the at least one transceiver, wherein each of the plurality of positioning reference signals has a same subcarrier spacing and cyclic prefix.

32. The device according to claim 24, in, The downlink resource bandwidth portion includes a mutually exclusive set of frequency resources.

33. An apparatus for wireless communication by a user equipment UE, include: means for receiving a positioning reference signal in a time slot, wherein the positioning reference signal spans a first frequency bandwidth; means for transmitting signals in a second frequency bandwidth during the time slot, wherein the second frequency bandwidth includes frequencies within the first frequency bandwidth; as well as Means for processing the positioning reference signal received in the first frequency bandwidth excluding the frequencies in the second frequency bandwidth.

34. An apparatus for wireless communication by a user equipment UE, include: means for receiving a positioning reference signal in a downlink resource bandwidth portion; means for transmitting a signal in an uplink resource bandwidth portion, wherein the uplink resource bandwidth portion overlaps at least a portion of the downlink resource bandwidth portion; as well as Means for processing the positioning reference signal received in a portion of the downlink resource bandwidth portion that does not overlap with the uplink resource bandwidth portion.

35. A non-transitory processor-readable storage medium comprising processor-readable instructions configured to cause one or more processors in a user equipment (UE) to communicate wirelessly, the processor-readable instructions include: code for receiving a positioning reference signal in a time slot, wherein the positioning reference signal spans a first frequency bandwidth; code for transmitting a signal in a second frequency bandwidth during the time slot, wherein the second frequency bandwidth includes frequencies within the first frequency bandwidth; and Code for processing the positioning reference signal received in the first frequency bandwidth excluding the frequencies in the second frequency bandwidth.

36. A non-transitory processor-readable storage medium comprising processor-readable instructions configured to cause one or more processors in a user equipment (UE) to communicate wirelessly, the processor-readable instructions include: code for receiving a positioning reference signal in a downlink resource bandwidth portion; code for transmitting a signal in an uplink resource bandwidth portion, wherein the uplink resource bandwidth portion overlaps at least a portion of the downlink resource bandwidth portion; as well as Code for processing the positioning reference signal received in a portion of the downlink resource bandwidth portion that does not overlap with the uplink resource bandwidth portion.

37. A computer program product comprising computer instructions which, when executed by a processor, cause the processor to perform the method of any one of claims 1 to 7.

38. A computer program product comprising computer instructions which, when executed by a processor, cause the processor to perform the method of any one of claims 8 to 16.

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