PRS report for distributed antenna systems
By receiving and reporting Positioning Reference Signal (PRS) configuration transmissions in wireless communication devices, the problem of reduced positioning accuracy caused by antenna configuration changes in distributed antenna systems is solved, achieving higher positioning accuracy and improved network performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-10-01
- Publication Date
- 2026-03-13
AI Technical Summary
In wireless communication networks, the positioning accuracy decreases and errors increase due to changes in antenna configuration in distributed antenna systems, especially in multi-antenna systems, where existing technologies struggle to effectively manage and reduce these errors.
By receiving Position Reference Signal (PRS) configuration transmissions in wireless communication devices, measuring based on antenna configuration, and sending PRS measurement reports to indicate antenna configuration changes, network entities can adjust and optimize antenna configurations based on these reports.
It improves positioning accuracy, reduces positioning errors, and enhances the performance of networks and devices, especially in distributed antenna systems, improving positioning accuracy and throughput.
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Figure CN116491175B_ABST
Abstract
Description
[0001] Cross-reference to related applications
[0002] This patent application claims priority to U.S. Patent Application No. 17 / 449,645 (2100171), filed September 30, 2021, entitled “PRS REPORTS WITH DISTRIBUTED ANTENNA SYSTEM,” and U.S. Provisional Patent Application No. 63 / 092,120 (2100171P1), filed October 15, 2020, entitled “PRS REPORTS WITH DISTRIBUTED ANTENNA SYSTEM,” the disclosures of which are hereby incorporated herein by reference in their entirety as fully set forth below and for all applicable purposes. Technical Field
[0003] This disclosure relates to various aspects of wireless communication systems, and more specifically, to the operation of Position Reference Signals (PRS). Specific embodiments of this technique discussed below can support and provide PRS reporting, as well as enhance the operation of distributed antenna systems. Background Technology
[0004] Wireless communication networks are widely deployed to provide various communication services such as voice, video, packet data, messaging, and broadcasting. These wireless networks can be multiple-access networks capable of supporting multiple users by sharing available network resources. Such networks can be multiple-access networks that support communication among multiple users by sharing available network resources.
[0005] A wireless communication network may include several components. These components may include wireless communication equipment, such as a base station (or Node B) that can support communication between several user equipments (UEs). UEs can communicate with the base station via downlink and uplink. The downlink (or forward link) refers to the communication link from the base station to the UE, and the uplink (or reverse link) refers to the communication link from the UE to the base station.
[0006] A base station can transmit data and control information to a UE on the downlink, or receive data and control messages from a UE on the uplink. On the downlink, transmissions from the base station may encounter interference from neighboring base stations or other radio frequency (RF) transmitters. On the uplink, transmissions from the UE may encounter interference from uplink transmissions from other UEs communicating with neighboring base stations or from other RF transmitters. This interference can degrade performance on both the downlink and uplink.
[0007] With the continued increase in demand for mobile broadband access, and with more user devices (UEs) accessing long-range wireless communication networks and more short-range wireless systems being deployed in communities, the likelihood of network interference and congestion is also increasing. Research and development are constantly driving the advancement of wireless technologies, not only to meet the growing demand for mobile broadband access but also to promote and enhance the user experience of mobile communications. Summary of the Invention
[0008] The following summarizes some aspects of this disclosure to provide a basic understanding of the techniques discussed. This invention is not a broad generalization of all features considered in this disclosure, nor is it intended to identify key or essential elements of all aspects of this disclosure, nor to define the scope of any or all aspects of this disclosure. Its sole purpose is to present some concepts of one or more aspects of this disclosure in an overview form as a prelude to the more specific embodiments presented later.
[0009] In one aspect of this disclosure, a method for wireless communication includes: receiving a Position Reference Signal (PRS) configuration transmission from a network entity by a wireless communication device; determining a PRS measurement report by the wireless communication device based on an antenna configuration; and transmitting the PRS measurement report by the wireless communication device, the PRS measurement report indicating the antenna configuration.
[0010] In another aspect of this disclosure, an apparatus includes at least one processor and a memory coupled to the at least one processor. The at least one processor is configured to: receive a Position Reference Signal (PRS) configuration transmission from a network entity; receive a PRS transmission from a wireless communication device based on the PRS configuration transmission; perform a measurement operation on the PRS transmission based on an antenna configuration; and transmit a PRS measurement report based on the measurement operation, the PRS measurement report indicating the antenna configuration.
[0011] In another aspect of this disclosure, a method for wireless communication includes: transmitting a Position Reference Signal (PRS) configuration transmission from a network entity to a wireless communication device; and receiving a PRS measurement report from the wireless communication device indicating a new antenna configuration of the wireless communication device.
[0012] In another aspect of this disclosure, an apparatus includes at least one processor and a memory coupled to the at least one processor. The at least one processor is configured to: transmit a Position Reference Signal (PRS) configuration transmission to a wireless communication device; and receive a PRS measurement report from the wireless communication device indicating a new antenna configuration of the wireless communication device.
[0013] The features and technical advantages of the examples according to this disclosure have been outlined rather broadly above to facilitate a better understanding of the following specific embodiments. Additional features and advantages will be described below. The disclosed concepts and specific examples can be readily used as the basis for modifying or designing other structures to achieve the same purpose as this disclosure. Such equivalent structures do not depart from the scope of the appended claims. The features of the concepts disclosed herein, their organization and operation, and associated advantages will be better understood from the following description when considered in conjunction with the accompanying drawings. Each drawing is provided for illustrative and descriptive purposes and not as a definition of limitation of the claims.
[0014] While aspects and implementations are described herein by way of example, those skilled in the art will understand that alternative implementations and use cases may arise in many different arrangements and scenarios. The innovations described herein can be implemented across many different platform types, devices, systems, shapes, sizes, and package arrangements. For example, aspects and / or the use of devices can be implemented via integrated chips and other non-modular components (e.g., end-user devices, vehicles, communication devices, computing devices, industrial machinery, retail / procurement devices, medical devices, AI-enabled devices, etc.). While some examples may or may not be specific to a particular use case or application, a variety of availability of the described innovations may emerge. Implementations can range from chip-level or modular components to non-modular, non-chip-level implementations, and even aggregated, distributed, or original equipment manufacturing (OEM) devices or systems incorporating one or more aspects of the innovation. In some practical settings, devices incorporating the aspects and features may also need to include additional components and features for implementing and practicing the claimed and described aspects. For example, the transmission and reception of wireless signals necessarily involve several components for analog and digital purposes (e.g., hardware components including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders / summers, etc.). It is intended that the innovations described herein can be implemented in a wide variety of devices, chip-level components, systems, distributed arrangements, end-user devices, etc., with different sizes, shapes, and constructions. Attached Figure Description
[0015] A further understanding of the nature and advantages of this disclosure can be achieved by referring to the following figures. In the figures, similar components or features may have the same reference numerals. Furthermore, various components of the same type can be distinguished by adding a dash after the reference numeral and a second numeral to differentiate similar components. If only the first reference numeral is used in the specification, the description applies to any of the similar components having that same first reference numeral, regardless of the second reference numeral.
[0016] Figure 1 It is a block diagram illustrating the details of an example wireless communication system according to one or more aspects.
[0017] Figure 2 This is a block diagram illustrating an example of a base station and user equipment (UE) based on one or more aspects.
[0018] Figure 3 This is a schematic diagram illustrating an example of information elements used for locating information.
[0019] Figure 4 This is a block diagram illustrating an example wireless communication system with antenna configuration indications reported via PRS based on support from one or more aspects.
[0020] Figure 5 This is a ladder diagram illustrating an example wireless communication system with antenna configuration indications reported via PRS based on support from one or more aspects.
[0021] Figure 5 This is a ladder diagram illustrating another example of a wireless communication system with antenna configuration indications reported via PRS based on support from one or more aspects.
[0022] Figure 6 This is a ladder diagram illustrating another example of a wireless communication system with antenna configuration indications reported via PRS based on support from one or more aspects.
[0023] Figure 7 This is a ladder diagram illustrating another example of a wireless communication system with antenna configuration indications reported via PRS based on support from one or more aspects.
[0024] Figure 8 This is a ladder diagram illustrating another example of a wireless communication system with antenna configuration indications reported via PRS based on support from one or more aspects.
[0025] Figure 9 This is a ladder diagram illustrating another example of a wireless communication system with antenna configuration indications reported via PRS based on support from one or more aspects.
[0026] Figure 10 This is a flowchart illustrating an example process of antenna configuration indication via PRS reporting based on support from one or more aspects.
[0027] Figure 11 This is a flowchart illustrating another example process of antenna configuration indication via PRS reporting based on support from one or more aspects.
[0028] Figure 12 This is a block diagram of an example UE, based on antenna configuration indications reported via PRS according to support from one or more aspects.
[0029] Figure 13 This is a block diagram of an example base station with antenna configuration indications reported via PRS based on support from one or more aspects.
[0030] Figure 14 and Figure 15 The diagram illustrates a block diagram of a clustered RAN type network.
[0031] The same reference numerals and labels in different figures represent the same elements. Detailed Implementation
[0032] The specific embodiments described below with reference to the accompanying drawings are intended as a description of various configurations and are not intended to limit the scope of this disclosure. Rather, the specific embodiments include specific details for providing a thorough understanding of the subject matter of the invention. It will be apparent to those skilled in the art that these specific details are not necessary in every case, and in some cases, well-known structures and components are shown in block diagram form for clarity.
[0033] This disclosure generally relates to providing or participating in permitted shared access between two or more wireless devices in one or more wireless communication systems (also referred to as wireless communication networks). In various implementations, these techniques and apparatuses can be used in wireless communication networks such as Code Division Multiple Access (CDMA) networks, Time Division Multiple Access (TDMA) networks, Frequency Division Multiple Access (FDMA) networks, Orthogonal FDMA (OFDMA) networks, Single Carrier FDMA (SC-FDMA) networks, LTE networks, GSM networks, fifth-generation (5G) or new radio (NR) networks (sometimes referred to as “5G NR” networks, systems, or devices), and other communication networks. As described herein, the terms “network” and “system” are used interchangeably.
[0034] For example, CDMA networks can implement radio technologies such as Universal Terrestrial Radio Access (UTRA) and CDMA2000. UTRA includes Wideband CDMA (W-CDMA) and Low Chip Rate (LCR). CDMA2000 covers the IS-2000, IS-95, and IS-856 standards.
[0035] For example, TDMA networks can implement radio technologies such as the Global System for Mobile Communications (GSM). The 3rd Generation Partnership Project (3GPP) defines the standard for the GSM EDGE (Enhanced Data Rate for GSM Evolution) Radio Access Network (RAN), also known as GERAN. GERAN, together with the network of joined base stations (e.g., Ater and Abis interfaces) and base station controllers (A interface, etc.), forms the radio component of GSM / EDGE. The radio access network represents a component of the GSM network through which telephone calls and packet data are routed from the Public Switched Telephone Network (PSTN) and the Internet to the user's handheld device (also known as the user terminal or user equipment (UE)) and from the user's handheld device to the PSTN and the Internet. A mobile phone operator's network may include one or more GERANs; in the case of UMTS / GSM networks, the GERAN may be coupled with the UTRAN. Furthermore, an operator's network may include one or more LTE networks, or one or more other networks. Different network types can use different radio access technologies (RATs) and RANs.
[0036] OFDMA networks can implement radio technologies such as Evolved UTRA (E-UTRA), IEEE 802.11, IEEE 802.16, IEEE 802.20, and Flash OFDM. UTRA, E-UTRA, and GSM are part of the Universal Mobile Telecommunications System (UMTS). In particular, Long Term Evolution (LTE) is a version of UMTS using E-UTRA. UTRA, E-UTRA, GSM, UMTS, and LTE are described in documents from an organization called the 3rd Generation Partnership Project (3GPP), and cdma2000 is described in documents from an organization called the 3rd Generation Partnership Project 2 (3GPP2). These different radio technologies and standards are either known or under development. For example, 3GPP is a collaboration between telecommunications association groups aimed at defining globally applicable third-generation (3G) mobile phone specifications. 3GPP LTE is a 3GPP project aimed at improving the UMTS mobile phone standard. 3GPP can define specifications for next-generation mobile networks, mobile systems, and mobile devices. This disclosure may describe certain aspects with reference to LTE, 4G, or 5G NR technologies; however, this specification is not intended to be limited to a particular technology or application, but one or more aspects described with reference to one technology may be understood to be applicable to another technology as well. Furthermore, one or more aspects of this disclosure may relate to shared access to radio spectrum between networks using different radio access technologies or radio air interfaces.
[0037] 5G networks envision diversity deployments, diversity spectrum, and diversity services and devices that can be achieved using a unified air interface based on OFDM. To achieve these goals, in addition to developing new radio technologies for 5G NR networks, further enhancements to LTE and LTE-A are also considered. 5G NR will be able to extend to provide coverage, (1) at ultra-high density (e.g., approximately 1 M nodes / km). 2 (1) Provides coverage for large-scale Internet of Things (IoT) with ultra-low complexity (e.g., approximately 10 s bits / second), ultra-low energy (e.g., battery life of approximately 10+ years), and capacity depth to reach challenging locations; (2) This coverage includes critical task control with robust security for sensitive personal, financial, or private information, ultra-high reliability (e.g., ~99.9999% reliability), ultra-low latency (e.g., ~1 millisecond (ms)), and users with wide mobility or no mobility; and (3) Provides coverage for large-scale Internet of Things (IoT) with ultra-low complexity (e.g., approximately 10 s bits / second), ultra-low energy (e.g., battery life of approximately 10+ years), and capacity depth to reach challenging locations; 2 This coverage is provided by extremely high data rates (e.g., several Gbps rates, 100+ Mbps user experience rates) and enhanced mobile broadband with advanced discovery and optimization deep awareness.
[0038] Devices, networks, and systems can be configured to communicate via one or more portions of the electromagnetic spectrum. The electromagnetic spectrum is typically subdivided into various categories, bands, channels, etc., based on frequency or wavelength. In 5G NR, two initial operating bands have been identified as frequency ranges designated FR1 (410MHz–7.125GHz) and FR2 (24.25GHz–52.6GHz). The frequencies between FR1 and FR2 are generally referred to as intermediate frequency (IF) frequencies. Although a portion of FR1 is greater than 6GHz, in various documents and articles, FR1 is often (interchangeably) referred to as the “sub-6GHz” band. Similar naming issues sometimes arise with FR2, although it differs from the Extremely High Frequency (EHF) band (30GHz–300GHz) recognized by the International Telecommunication Union (ITU) as a “millimeter wave” (mmWave) band; in documents and articles, FR2 is often (interchangeably) referred to as the “mmWave” band.
[0039] Considering the foregoing, unless otherwise specified, it should be understood that the use of terms such as "below 6 GHz" herein can broadly indicate a frequency that is less than 6 GHz, within FR1, or may include an intermediate frequency. Furthermore, unless otherwise specified, it should be understood that the use of terms such as "mmWave" herein can broadly indicate a frequency that may include an intermediate frequency, within FR2, or within the EHF band.
[0040] 5G NR devices, networks, and systems can be implemented using optimized OFDM-based waveform characteristics. These characteristics can include scalable parameter sets and transmission time intervals (TTIs); a common, flexible framework for efficiently multiplexing services and characteristics through dynamic, low-latency time-division duplex (TDD) or frequency-division duplex (FDD) designs; and advanced radio technologies such as massive MIMO, robust mmWave transport, advanced channel coding, and device-centric mobility. The scalability of parameter sets and subcarrier spacing in 5G NR effectively addresses the challenge of operating diverse services across diverse spectrum and deployments. For example, in various outdoor and macro coverage deployments using FDD or TDD implementations below 3 GHz, subcarrier spacing can occur at 15 kHz over bandwidths such as 1, 5, 10, and 20 MHz. For other various outdoor and small-cell coverage deployments using TDD above 3 GHz, subcarrier spacing can occur at 30 kHz over 80 / 100 MHz bandwidths. For various other indoor broadband implementations using TDD in the unlicensed portion of the 5 GHz band, subcarrier spacing can occur at 60 kHz over a 160 MHz bandwidth. Finally, for various deployments using mmWave components for transmission under TDD at 28 GHz, subcarrier spacing can occur at 120 kHz over a 500 MHz bandwidth.
[0041] 5G NR's scalable parameter set facilitates scalable TTIs for diverse latency and Quality of Service (QoS) requirements. For example, shorter TTIs can be used for low latency and high reliability, while longer TTIs can be used for higher spectral efficiency. Efficient multiplexing of long and short TTIs allows transmission to begin at symbol boundaries. 5G NR also envisions self-contained integrated subframe designs that contain uplink or downlink scheduling information, data, and acknowledgments within the same subframe. Self-contained integrated subframes support communication in unlicensed or contention-based shared spectrum, and adaptive uplink or downlink, which can be flexibly configured on a per-cell basis to dynamically switch between uplink and downlink to meet current service demands.
[0042] For clarity, certain aspects of the device and technology may be described below with reference to example 5G NR implementations or in a 5G-centric manner, and 5G terminology may be used as illustrative examples in the following description sections; however, this specification is not intended to be limited to 5G applications.
[0043] Furthermore, it should be understood that, in operation, wireless communication networks adapted according to the concepts herein can operate using any combination of licensed or unlicensed spectrum depending on load and availability. Therefore, it will be apparent to those skilled in the art that the systems, apparatuses, and methods described herein can be applied to other communication systems and applications beyond the specific examples provided.
[0044] While aspects and implementations have been described in this application by way of examples, those skilled in the art will understand that other implementations and use cases may arise in many different arrangements and scenarios. The novelty described herein can be implemented on many different platform types, devices, systems, shapes, sizes, and package arrangements. For example, implementations or uses may be implemented via integrated chip implementations or other devices based on non-modular components (e.g., end-user devices, vehicles, communication devices, computing devices, industrial devices, retail or purchasing devices, medical devices, artificial intelligence devices, etc.). While some examples may be specific to particular use cases or applications, a wide variety of applicability to the described innovations is also possible. The range of implementations can be from chip-level or modular components to non-modular, non-chip-level implementations, and further to aggregated, distributed, or original equipment manufacturer (OEM) devices or systems incorporating one or more of the described aspects. In some practical settings, devices incorporating the described aspects and features may also need to include additional components and features for implementing and practicing the claimed and described aspects. The innovative intent described herein can be practiced in a wide variety of implementations, including large or small devices, chip-level components, multi-component systems (e.g., radio frequency (RF) chains, communication interfaces, processors), distributed layouts, and end-user equipment of different sizes, shapes, and constructions.
[0045] Figure 1 This is a block diagram illustrating details of an example wireless communication system according to one or more aspects. The wireless communication system may include a wireless network 100. For example, wireless network 100 may include a 5G wireless network. As those skilled in the art will understand, Figure 1 The components appearing in this may have corresponding counterparts in other network arrangements, including, for example, cellular network arrangements and non-cellular network arrangements (e.g., device-to-device or peer-to-peer or ad hoc network arrangements, etc.).
[0046] Figure 1The illustrated wireless network 100 includes multiple base stations 105 and other network entities. A base station can be a station communicating with a UE, and may also be referred to as an evolved Node B (eNB), a next-generation eNB (gNB), an access point, etc. Each base station 105 can provide communication coverage for a specific geographic area. In 3GPP, the term "cell" can refer to this specific geographic coverage area served by a base station or base station subsystem serving a coverage area, depending on the context in which the term is used. In the implementation of the wireless network 100 herein, base stations 105 may be associated with the same operator or different operators (e.g., the wireless network 100 may include multiple operator wireless networks). Furthermore, in the implementation of the wireless network 100 herein, base stations 105 may use one or more frequencies (e.g., one or more bands of licensed spectrum, unlicensed spectrum, or combinations thereof) that are the same as those of neighboring cells to provide wireless communication. In some examples, a single base station 105 or UE 115 may be operated by more than one network operating entity. In some other examples, each base station 105 and UE 115 may be operated by a single network operating entity.
[0047] Base stations can provide communication coverage for macro cells, small cells (such as pico cells or femto cells), or other types of cells. Macro cells typically cover a relatively large geographic area (e.g., a radius of several kilometers) and allow unrestricted access for UEs with service subscriptions to network providers. Small cells, such as pico cells, typically cover a relatively small geographic area and allow unrestricted access for UEs with service subscriptions to network providers. Small cells, such as femto cells, also typically cover a relatively small geographic area (e.g., a home) and, in addition to unrestricted access, provide restricted access for UEs associated with the femto cell (e.g., UEs in a Closed Subscriber Group (CSG), UEs of users in a home, etc.). A base station used for a macro cell can be called a macro base station. A base station used for a small cell can be called a small cell base station, pico base station, femto base station, or home base station. Figure 1 In the example shown, base stations 105d and 105e are conventional macro base stations, while base stations 105a-105c are macro base stations enabled using one of three-dimensional (3D), full-dimensional (FD), or massive MIMO. Base stations 105a-105c leverage their higher-dimensional MIMO capabilities to increase coverage and capacity using 3D beamforming in both elevation and azimuth beamforming. Base station 105f is a small cell base station, which can be a home node or a portable access point. A base station can support one or more (e.g., two, three, four, etc.) cells.
[0048] Wireless network 100 can support synchronous or asynchronous operation. For synchronous operation, base stations can have similar frame timings, and transmissions from different base stations can be roughly aligned in time. For asynchronous operation, base stations can have different frame timings, and transmissions from different base stations can be misaligned in time. In some scenarios, the network can be enabled or configured to handle dynamic switching between synchronous and asynchronous operations.
[0049] UE 115 are distributed throughout the wireless network 100, and each UE can be stationary or mobile. It should be understood that although mobile devices are generally referred to as UEs in 3GPP standards and specifications, those skilled in the art may otherwise refer to such devices as mobile stations (MS), subscriber stations, mobile units, subscriber units, radio units, remote units, mobile devices, radio devices, wireless communication devices, remote devices, mobile subscriber stations, access terminals (AT), mobile terminals, radio terminals, remote terminals, handsets, terminals, user agents, mobile clients, clients, gaming devices, augmented reality devices, vehicle components, vehicle equipment, or vehicle modules, or some other suitable terminology. In this document, a “mobile” device or UE does not necessarily have mobility capabilities and may be stationary. Some non-limiting examples of mobile devices, such as implementations that may include one or more of UE 115, include mobile, cellular (cell) phones, smartphones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, laptop computers, personal computers (PCs), netbooks, smartbooks, tablets, and personal digital assistants (PDAs). Mobile devices can also be Internet of Things (IoT) or “Internet of Everything” (IoE) devices, such as automobiles or other vehicles, satellite radios, Global Navigation Satellite System (GNSS) equipment, logistics controllers, drones, multirotors, quadcopters, smart energy or security devices, solar panels or solar arrays, municipal lighting, water or other infrastructure; industrial automation and enterprise equipment; consumer and wearable devices (such as glasses, wearable cameras, smartwatches, health or fitness trackers), mammalian implantable devices, gesture tracking devices, medical devices, digital audio players (e.g., MP3 players), cameras, game consoles, etc.); and digital home or smart home devices (such as home audio, video, and multimedia devices), appliances, sensors, vending machines, smart lighting, home security systems, smart meters, etc. In one aspect, the UE can be a device that includes a Universal Integrated Circuit Card (UICC). In another aspect, the UE can be a device that does not include a UICC. In some aspects, a UE that does not include a UICC can also be referred to as an IoE device. Figure 1The UEs 115a-115d in the implementation shown in the figure are examples of mobile smartphone-type devices accessing the wireless network 100. The UE can also be a machine specifically configured for network communication, including machine-type communication (MTC), enhanced MTC (eMTC), narrowband Internet of Things (NB-IoT), etc. Figure 1 The UE 115e-115k illustrated is an example of various machines configured for accessing communications of the wireless network 100.
[0050] Mobile devices (such as UE 115) can communicate with any type of base station, whether macro base station, pico base station, femto base station, repeater, etc. Figure 1 In this context, a communication link (represented by a lightning bolt) indicates a wireless transmission between the UE and a serving base station (a base station designated to serve the UE on the downlink or uplink), or a desired transmission between base stations, and a backhaul transmission between base stations. In some scenarios, the UE may operate as a base station or other network node. Backhaul communication between base stations of the wireless network 100 can occur using wired or wireless communication links.
[0051] In operation at wireless network 100, base stations 105a-105c use 3D beamforming and coordinated spatial technologies (such as Coordinated Multipoint (CoMP) or multiple connections) to provide services to UEs 115a and 115b. Macro base station 105d performs backhaul communication with base stations 105a-105c and small cell base station 105f. Macro base station 105d also transmits multicast services subscribed to and received by UEs 115c and 115d. Such multicast services may include mobile TV or streaming video, or may include other services for providing community information, such as weather emergencies or alerts, such as Amber Alerts or Grey Alerts.
[0052] The wireless network 100 supports mission-critical communication with highly reliable and redundant links for mission-critical devices such as UE 115e as a drone. Redundant communication links with UE 115e include communication links from macro base stations 105d and 105e and small cell base station 105f. Other machine-type devices such as UE 115f (thermometer), UE 115g (smart meter), and UE 115h (wearable device) can communicate directly with base stations (such as cell base station 105f and macro base station 105e) via the wireless network 100, or in a multi-hop configuration by communicating with another user device relaying its information to the network. For example, UE 115f transmits temperature measurement information to smart meter UE 115g, which then reports it to the network via small cell base station 105f. Wireless network 100 can also provide additional network efficiency through dynamic, low-latency TDD or low-latency FDD communication, such as in vehicle-to-vehicle (V2V) mesh networks between UEs 115i-115k communicating with macro base station 105e.
[0053] Figure 2 This is a block diagram illustrating an example of a base station 105 and a UE 115 according to one or more aspects. The base station 105 and the UE 115 can be... Figure 1 Any one of the base stations and one of the UEs. For restricted association scenarios (as described above), base station 105 can be Figure 1 The small cell base station 105f is used, and UE 115 can be UE 115c or 115D operating within the service area of base station 105f. To access small cell base station 105, these UEs will be included in the list of accessible UEs for small cell base station 105f. Base station 105 can also be some other type of base station. For example... Figure 2 As shown, base station 105 may be equipped with antennas 234a to 234t, and UE 115 may be equipped with antennas 252a to 252r for facilitating wireless communication.
[0054] At base station 105, transmitting processor 220 can receive data from data source 212 and control information from controller 240 (such as a processor). The control information can be used for Physical Broadcast Channel (PBCH), Physical Control Format Indicator Channel (PCFICH), Physical Hybrid ARQ (Automatic Repeat Request) Indicator Channel (PHICH), Physical Downlink Control Channel (PDCCH), Enhanced Physical Downlink Control Channel (EPDCCH), MTC Physical Downlink Control Channel (MPDCCH), etc., and the data can be used for Physical Downlink Shared Channel (PDSCH), etc. Furthermore, transmitting processor 220 can process (e.g., encode and map symbol) the data and control information to obtain data symbols and control symbols respectively. Transmitting processor 220 can also generate reference symbols, such as reference symbols for primary synchronization signal (PSS) and secondary synchronization signal (SSS), as well as cell-specific reference signals. The transmit (TX) MIMO processor 230 can perform spatial processing (e.g., precoding) on data symbols, control symbols, or reference symbols (if applicable), and can provide an output symbol stream to modulators (MODs) 232a to 232t. For example, spatial processing performed on data symbols, control symbols, or reference symbols may include precoding. Each modulator 232 can process its corresponding output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each modulator 232 can additionally or alternatively process (e.g., convert to analog, amplify, filter, and upconvert) the output sample stream to obtain a downlink signal. The downlink signal from modulators 232a to 232t can be transmitted via antennas 234a to 234t, respectively.
[0055] At UE 115, antennas 252a to 252r can receive downlink signals from base station 105 and can respectively provide the received signals to demodulators 254a to 254r. Each demodulator 254 can adjust (e.g., filter, amplify, down-convert, and digitize) the corresponding received signal to obtain an input sample. Each demodulator 254 can also process the input sample (e.g., for OFDM, etc.) to obtain received symbols. MIMO detector 256 can obtain the received symbols from demodulators 254a to 254r, perform MIMO detection on the received symbols (if applicable), and provide the detected symbols. Receiver processor 258 can process (e.g., demodulate, deinterleave, and decode) the detected symbols, provide decoded data for UE 115 to data sink 260, and provide decoded control information to controller 280 (such as a processor).
[0056] On the uplink, at UE 115, the transmitting processor 264 can receive and process data from data source 262 (e.g., for the Physical Uplink Shared Channel (PUSCH)) and control information from controller 280 (e.g., for the Physical Uplink Control Channel (PUCCH)). Furthermore, the transmitting processor 264 can generate reference symbols for reference signals. Symbols from the transmitting processor 264 can be pre-encoded (if applicable) by the TX MIMO processor 266, further processed by modulators 254a to 254r (e.g., for SC-FDM, etc.), and transmitted to base station 105. At base station 105, the uplink signal from UE 115 can be received by antenna 234, processed by demodulator 232, detected by MIMO detector 236 (if applicable), and further processed by receiving processor 238 to obtain decoded data and control information transmitted by UE 115. The receiver processor 238 can provide the decoded data to the data sink 239 and the decoded control information to the controller 240.
[0057] Controllers 240 and 280 can respectively direct operations at base station 105 and UE 115. Controller 240 or other processors and modules at base station 105 or controller 280 or other processors and modules at UE 115 can execute or direct the execution of various processes used in the techniques described herein, such as executing or directing... Figure 10 and Figure 11 The execution illustrated herein, or other processes used in the techniques described herein. Memory 242 and 282 may store data and program code for base station 105 and UE 115, respectively. Scheduler 244 may schedule the UE for downlink or uplink data transmission.
[0058] In some cases, UE 115 and base station 105 may operate in a shared radio frequency spectrum band, which may include licensed or unlicensed (e.g., contention-based) frequency spectra. In the unlicensed frequency portion of the shared radio frequency spectrum band, UE 115 or base station 105 may conventionally perform a medium-sensing procedure to compete for access to that frequency spectrum. For example, UE 115 or base station 105 may perform a Listen-Before-Speak or Listen-Before-Transmit (LBT) procedure, such as Clean Channel Assessment (CCA), before communication to determine if a shared channel is available. In some implementations, CCA may include an energy detection procedure to determine if there is any other active transmission. For example, the device may infer that a change in the Received Signal Strength Indicator (RSSI) of a power meter indicates that the channel is occupied. Specifically, signal power concentrated in a specific bandwidth and exceeding a predetermined intrinsic noise level may indicate another radio transmitter. CCA may also include the detection of a specific sequence indicating channel usage. For example, another device may transmit a specific preamble before transmitting a data sequence. In some cases, the LBT process may include: the wireless node adjusting its own backoff window based on the amount of energy detected on the channel or on the acknowledgment / negative acknowledgment (ACK / NACK) feedback of packets it sends as a proxy for collisions.
[0059] Multi-antenna systems offer the advantage of better antenna gain. For example, using multiple antennas to perform time of arrival (TOA) measurements and / or angle measurements can enable improved beamforming.
[0060] For some UEs with distributed antennas / multiple antenna panels, combining signals from different antennas / panels may not provide a real-world performance advantage, or aligning the phase between different antennas / panels may be too complex.
[0061] Conversely, antenna diversity offers the ability to provide better performance. As examples of antenna diversity, multiple panels on a cellular phone provide it, and / or multiple panels on a larger device (such as a car with antennas on the front and rear bumpers). With a distributed antenna array, the device can switch beams across subarrays or panels for better measurements. Therefore, the device can reduce errors and improve performance by using information from one or more other devices (e.g., a network) to minimize errors (e.g., positioning estimation errors caused by calibration errors).
[0062] Calibration error can refer to uncertainties in the RF chain. Switching antenna panels can reduce or minimize measurement errors to the panel with the minimum calibration error. When a panel is switched, the physical location of the antenna used for receiving or transmitting the Position Reference Signal (PRS) changes. This position switch results in a change in TOA (Time of Arrival). To illustrate, the TOA differs for a specific PRS from the transmitting device due to varying physical distances, depending on whether the PRS is received using the first or second panel. Therefore, if this information is not provided to the network (e.g., location management functions), positioning accuracy will be reduced.
[0063] Therefore, the UE can switch antenna configurations, perform measurements using those configurations, and notify the network of this change. The UE can report antenna changes via a measurement report (referred to as a PRS report or PRS measurement report). The PRS report can include or correspond to positioning reports, such as Time Difference of Arrival (TDOA) measurement reports. The PRS report can be transmitted or be transmitted as part of downlink control information (DCI), uplink control information (UCI), sidelink control information (SCI), medium access control element (MAC CE), or LTE positioning protocol (LPP) transmissions. This reduces errors that would otherwise occur when the UE changes its antenna configuration.
[0064] Figure 3 The diagram illustrates an example of information elements and their sub-elements used in TDOA measurement reports. Figure 3 The diagram illustrates downlink TDOA signal measurement information elements and their measurement list information elements. Such information elements can be used to report positioning measurement information, which can be determined based on reference signals used for positioning, such as a positioning reference signal (PRS).
[0065] Figure 4 The figures illustrate an example of a wireless communication system 400 supporting enhanced PRS operation according to various aspects of this disclosure. In some examples, the wireless communication system 400 may implement aspects of the wireless communication system 100. For example, the wireless communication system 400 may include multiple wireless communication devices and optionally a network entity. Figure 4 In the example, the wireless communication system 400 includes a base station 105, a UE 115, and a network entity 405. Enhanced PRS operation can improve positioning accuracy, reduce positioning errors, and increase throughput. Therefore, network and device performance can be improved.
[0066] Wireless communication devices (such as base station 105 and UE 115) can be configured to communicate via one or more portions of the electromagnetic spectrum. The electromagnetic spectrum is typically subdivided into various categories, bands, channels, etc., based on frequency / wavelength. In 5G NR, two initial operating frequency bands are identified as frequency ranges designated FR1 (410MHz–7.125GHz) and FR2 (24.25GHz–52.6GHz). The frequencies between FR1 and FR2 are generally referred to as the mid-band frequencies. Although a portion of FR1 is greater than 6GHz, FR1 is often referred to (interchangeably) as the “below 6GHz” band in various documents and articles. Similar naming issues sometimes arise regarding FR2; although different from the Extremely High Frequency (EHF) band (30GHz–300GHz) recognized as the “mmWave” band by the International Telecommunication Union (ITU), FR2 is often referred to (interchangeably) as the “mmWave” band in documents and articles.
[0067] In light of the foregoing, unless otherwise specified, it should be understood that the use of terms such as "below 6 GHz" herein can broadly indicate frequencies less than 6 GHz, within FR1, or including intermediate frequency (IF) frequencies. Furthermore, unless otherwise specified, it should be understood that the use of terms such as "mmWave" herein can broadly indicate frequencies that can include IF, within FR2, or within the EHF band.
[0068] It should be noted that for some data channels, the SCS can be equal to 15, 30, 60, or 120 kHz. UE 115 and base station 105 can be configured to communicate via one or more component carriers (CCs), such as the representative first CC 481, second CC 482, third CC 483, and fourth CC 484. Although four CCs are shown, this is for illustrative purposes only, and more or fewer CCs may be used. One or more CCs can be used to transmit control channel transmissions, data channel transmissions, and / or sidelink channel transmissions.
[0069] Such transmissions may include the Physical Downlink Control Channel (PDCCH), Physical Downlink Shared Channel (PDSCH), Physical Uplink Control Channel (PUCCH), Physical Uplink Shared Channel (PUSCH), Physical Sidelink Control Channel (PSCCH), Physical Sidelink Shared Channel (PSSCH), or Physical Sidelink Feedback Channel (PSFCH). Such transmissions can be scheduled using aperiodic granting and / or periodic granting.
[0070] Each periodic license can have a corresponding configuration, such as configuration parameters / settings. The periodic license configuration can include the configured license (CG) configuration and settings. Additionally or alternatively, one or more periodic licenses (e.g., their CGs) can have or be assigned a CC ID, such as the expected CC ID.
[0071] Each CC can have a corresponding configuration, such as configuration parameters / settings. This configuration may include bandwidth, bandwidth portion, HARQ procedure, TCI status, RS, control channel resources, data channel resources, or a combination thereof. Additionally or alternatively, one or more CCs may have or be assigned a cell ID, a bandwidth portion (BWP) ID, or both. The cell ID may include a unique cell ID for the CC, a virtual cell ID, or a specific cell ID for a specific CC among multiple CCs. Additionally or alternatively, one or more CCs may have or be assigned a HARQ ID. Each CC may also have corresponding management functions, such as beam management, BWP handover functions, or both. In some implementations, two or more CCs are quasi-co-located, such that these CCs have the same beam and / or the same symbols.
[0072] In some implementations, control information can be transmitted via UE 115 and base station 105. For example, control information can be transmitted using MAC CE transmission, RRC transmission, DCI (downlink control information) transmission, UCI (uplink control information) transmission, SCI (sidelink control information) transmission, other transmissions, or combinations thereof.
[0073] UE 115 may include various components (e.g., architecture, hardware components) for performing one or more of the functions described herein. For example, these components may include processor 402, memory 404, transmitter 410, receiver 412, encoder 413, decoder 414, PRS manager 415, antenna manager 416, and antennas 252a-r. Processor 402 may be configured to execute instructions stored in memory 404 to perform the operations described herein. In some implementations, processor 402 includes or corresponds to controller / processor 280, and memory 404 includes or corresponds to memory 282. Memory 404 may also be configured to store PRS report data 406, measurement data 408, PRS setting data 442, antenna setting data 444, or combinations thereof, as further described herein.
[0074] PRS report data 406 includes or corresponds to data associated with or corresponding to feedback on the PRS transmission. For example, PRS report data 406 may indicate measurement information determined by performing measurements on the PRS transmission. PRS report data 406 may also include antenna configurations used by the device to receive and / or measure the PRS transmission.
[0075] Measurement data 408 includes or corresponds to data indicating or corresponding to positioning reference measurements. For example, measurement data 408 may include data indicating positioning-related measurements of a reference signal (such as PRS). Such positioning-related measurements may include timing-based measurements, such as time of arrival (TOA) or round-trip time (RTT).
[0076] PRS setup data 442 includes or corresponds to data associated with enhanced PRS operation. PRS setup data 442 may include PRS setup information for PRS transmission and PRS reporting. For example, PRS setup data 442 may have data indicating transmission resources used for reference signal transmission and report transmission. As another example, PRS setup data 442 may include data indicating report format and / or antenna configuration report type. For illustration, antenna configuration may be appended to or embedded in the report, and / or may be explicitly included in or indicated by the index.
[0077] Antenna setup data 444 includes or corresponds to data associated with antenna setup. Antenna setup data 444 may contain data indicating antenna configuration and / or antenna placement. For example, such data may indicate or include antenna location (e.g., antenna coordinates), antenna type (e.g., directional or omnidirectional antenna), antenna spacing, beamwidth, direction / angle, or combinations thereof. In some implementations, a particular antenna configuration may include, or be associated with, a single path or multiple paths.
[0078] Transmitter 410 is configured to transmit data to one or more other devices, and receiver 412 is configured to receive data from one or more other devices. For example, transmitter 410 may transmit data via a network (such as a wired network, a wireless network, or a combination thereof), and receiver 412 may receive data via a network (such as a wired network, a wireless network, or a combination thereof). For example, UE 115 may be configured to transmit or receive data via a direct device-to-device connection, a local area network (LAN), a wide area network (WAN), a modem-to-modem connection, the Internet, an intranet, an extranet, a cable transmission system, a cellular communication network, any combination thereof, or any other communication network now known or developed hereafter that allows two or more electronic devices to communicate therein. In some implementations, transmitter 410 and receiver 412 may be replaced by transceivers. Additionally or alternatively, transmitter 410, receiver 412, or both may include or correspond to references. Figure 2 One or more components of the described UE 115.
[0079] Encoder 413 and decoder 414 can be configured to encode and decode data for transmission. PRS manager 415 can be configured to determine and perform PRS operations. For example, PRS manager 415 is configured to determine one or more resources to be used for PRS transmission and PRS feedback, such as when and where to perform reference signal transmission and feedback transmission. As another example, PRS manager 415 is configured to perform measurement operations on PRS transmission. In some implementations, PRS manager 415 is configured to determine whether to perform one measurement operation or multiple measurement operations, such as first and second measurement operations. PRS manager 415 can be configured to include antenna configuration in PRS feedback (e.g., indicating antenna configuration in PRS reports).
[0080] Antenna manager 416 can be configured to determine and perform antenna configuration operations. For example, antenna manager 416 can be configured to determine whether to change the antenna configuration and, optionally, change the settings of the antenna configuration. Antenna manager 416 can also be configured for antenna configuration operations for locating (e.g., PRS) feedback transmissions.
[0081] Base station 105 includes a processor 430, a memory 432, a transmitter 434, a receiver 436, an encoder 437, a decoder 438, a PRS manager 439, an antenna manager 440, and antennas 234a-t. Processor 430 can be configured to execute instructions stored in memory 432 to perform the operations described herein. In some implementations, processor 430 includes or corresponds to controller / processor 240, and memory 432 includes or corresponds to memory 242. Memory 432 can be configured to store PRS report data 406, measurement data 408, PRS setting data 442, antenna setting data 444, or combinations thereof, similar to UE 115 and as further described herein.
[0082] Transmitter 434 is configured to transmit data to one or more other devices, and receiver 436 is configured to receive data from one or more other devices. For example, transmitter 434 may transmit data via a network (such as a wired network, a wireless network, or a combination thereof), and receiver 436 may receive data via a network (such as a wired network, a wireless network, or a combination thereof). For example, base station 105 may be configured to transmit and / or receive data via a direct device-to-device connection, a local area network (LAN), a wide area network (WAN), a modem-to-modem connection, the Internet, an intranet, an extranet, a cable transmission system, a cellular communication network, any combination of the foregoing, or any other communication network now known or developed hereafter that allows two or more electronic devices to communicate therein. In some implementations, transmitter 434 and receiver 436 may be replaced by transceivers. Additionally or alternatively, transmitter 434, receiver 436, or both may include or correspond to references. Figure 2 One or more components of the described base station 105.
[0083] Encoder 437 and decoder 438 may include the same functionality described with reference to encoder 413 and decoder 414, respectively. PRS manager 439 may include similar functionality as described with reference to PRS manager 415. Antenna manager 440 may include similar functionality as described with reference to antenna manager 416.
[0084] During operation of the wireless communication system 400, base station 105 and / or network entity 405 may determine that UE 115 has enhanced PRS feedback capability. For example, base station 105 may send message 448 including an enhanced PRS reporting indicator 490 (e.g., an antenna configuration reporting indicator). Indicator 490 may indicate enhanced PRS operation capability for PRS reporting or a specific type or mode of PRS operation. In some implementations, network entity (e.g., network entity 405) or base station 105 sends control information to instruct UE 115 to use enhanced PRS operation and / or a specific type of enhanced PRS feedback operation. For example, in some implementations, message 448 (or another message, such as configuration transmission 450) is sent by base station 105 or network entity 405. Configuration transmission 450 may include or indicate the use of enhanced PRS feedback operation, or adjust or implement settings for a specific type of enhanced PRS feedback operation. For example, configuration transmission 450 may include 442 (e.g., Figure 4 (as shown in the example), 444, or both.
[0085] During operation, the devices of the wireless communication system 400 perform enhanced PRS feedback operations. For example, the wireless communication devices (e.g., a base station and a UE) exchange transmissions via downlink or uplink channels, or the wireless communication devices (e.g., two UEs) exchange transmissions via sidelink channels. Figure 4 In the example, network entity 405 sends a PRS configuration message 452 to UE 115 and optionally to base station 105. The PRS configuration message 452 may include or instruct network entity 405 (e.g., its location management function (LMF)) to select specific resources for PRS transmission and another resource optionally for PRS reporting.
[0086] In other examples, network entity 405 (e.g., LMF) and base station 105 are co-located. In such an implementation, network entity 405 can generate PRS configuration message 452, and base station 105 sends PRS configuration message 452 to UE 115.
[0087] UE 115 can receive PRS configuration message 452 and can determine specific resources reserved by network entity 405 and / or base station 105. UE 115 can then monitor PRS transmissions (such as PRS transmission 454) based on the specific resources indicated by PRS configuration message 452. For example, base station 105 can send PRS transmission 452 to UE 115 and optionally to one or more other devices (such as other UEs).
[0088] Upon receiving PRS configuration message 452, UE 115 can determine whether to set or switch antenna configurations, such as beamwidth, subarray parameters, array parameters, and panel parameters. UE 115 can determine an antenna configuration that alters the signal path used by UE 115. UE 115 can determine to use such an antenna configuration in response to receiving the message or based on one or more UE determinations. UE 115 can also determine a new antenna configuration based on the message or based on one or more UE determinations. The new antenna configuration can be used for all transmissions, for reception of a specific type of transmission (e.g., a reference signal or PRS transmission), or only as a test configuration, such as for evaluating one or more reference signals. In some implementations, UE 115 determines to switch from a first antenna configuration to a second antenna configuration. Compared to the first antenna configuration, the second antenna configuration can be based on, or associated with, reduced group delay or reduced timing measurements.
[0089] UE 115 and base station 105 can determine resources for one or more PRS feedback transmissions based on PRS transmission 452 and optionally based on configuration information (such as PRS configuration data 442), which may be indicated by PRS configuration message 452. For example, UE 115 can receive PRS transmission 454 using a new antenna configuration and can determine resources for PRS feedback transmissions based on the resources indicated by PRS configuration message 452. Receiving PRS transmission 454 using an antenna configuration may include or correspond to receiving and measuring (e.g., directly) PRS transmission 452 using a delay (e.g., group delay) associated with the antenna configuration. UE 115 can then transmit one or more feedback transmissions in one or more of the determined resources. As another example, UE 115 can receive PRS transmission 454 using another antenna configuration and measure PRS transmission 452 based on the antenna configuration. For illustration, UE 115 may use delays associated with an antenna configuration (e.g., group delays) when generating or adjusting measurements performed with another antenna configuration, or otherwise take into account delays associated with an antenna configuration.
[0090] exist Figure 4 In the example shown, UE 115 responds to PRS transmission 454 by sending PRS report transmission 456. PRS report transmission 456 includes or indicates a new, set, or switched antenna configuration for UE 115. For example, PRS report transmission 456 may include changed antenna parameters, including explicit antenna configurations or indicating changed parameters or the complete configuration via indicators (e.g., antenna configuration or parameter index).
[0091] Additionally or alternatively, UE 115 may send another PRS report transmission. For example, UE 115 may send a second PRS report transmission that includes, or indicates, the antenna configuration of PRS report transmission 456 if the configuration has not changed. As another example, UE 115 may send a second PRS report transmission that includes, or indicates a new antenna configuration if another antenna change has been made, or indicates no antenna configuration if the antenna configuration has not changed. PRS report transmission 456 and the second PRS report transmission may be sent to network entity 405, base station 105, or both.
[0092] Network entity 405, base station 105, or both can determine the position of UE 115 based on the antenna configuration indicated by or included in the PRS report transmission 456. Base station 105 can then use the determined position (e.g., an updated or more precise position) to transmit and / or receive one or more other transmissions. Figure 4 In the example, base station 105 sends downlink transmission 458 to UE 115 based on or using determined location (e.g., location information). Downlink transmission 458 may include or correspond to PDSCH transmission or PDCCH transmission. Furthermore, downlink transmission 458 may include or correspond to higher-layer transmissions, such as MAC CE or RRC transmission.
[0093] Alternatively, the PRS manager 439 of network entity 405, base station 105, or both may determine positioning assistance information based on measurements and / or antenna configurations indicated or included in the PRS report transmission 456. In some such implementations, the positioning assistance information may include or correspond to group delay or timing measurements associated with the antenna configuration. The group delay associated with the antenna configuration may be used to offset the timing / PRS measurement indicated in the PRS report to generate a new measurement (e.g., a second measurement or an adjusted measurement), or it may be used to generate (e.g., an adjusted) ranging estimate.
[0094] In other implementations, additional transmissions can be sent based on the PRS report and the antenna configuration indicated therefrom. For example, uplink and / or sidelink transmissions can be transmitted based on antenna configuration or positioning information derived therefrom. Furthermore, although in Figure 4The example already illustrates uplink-based or UE-based operations, but in other implementations, or alternatives to uplink-based or UE-based operations, downlink or sidelink implementations may also be used. For illustration, a UE can send PRS transmissions and a base station can switch antenna configurations, perform PRS measurements, and send a PRS report indicating the switched antenna configuration. As another illustration, two UEs can each send and receive PRS transmissions or reports from each other. Figures 5 to 9 The middle figure shows an additional example of PRS feedback operation.
[0095] Therefore, UE 115 and base station 105 can more effectively perform PRS feedback operations to indicate antenna configuration in the PRS feedback. Figure 4 Enhanced PRS operation is described. Improvements can be achieved when operating with larger and / or more complex devices with multiple antennas. Performing enhanced PRS operation using antenna configuration information improves positioning accuracy and signal strength, thus enhancing UE and network performance by increasing throughput, reducing errors, and minimizing latency.
[0096] Figures 5 to 9 The diagram illustrates an example of a ladder diagram used for PRS operations based on several aspects. Figures 5 to 9 Examples include with Figure 1 , Figure 2 and Figure 4 The devices described herein (such as UE 115 and base station 105) are similar to those described herein. Figures 5 to 9 The devices (such as UE 115 and base station 105) may include, for example, Figure 2 and Figure 4 One or more of the components described herein. In such a diagram, these devices may utilize antennas 252a-r, transmitter 410, receiver 412, encoder 413 and / or decoder 414, or may utilize antennas 234a-t, transmitter 434, receiver 436, encoder 437 and / or decoder 438 for transmission and reception. (See reference) Figure 5 , Figure 5 It is based on ladder diagram 500 of PRS operation of co-located UE based on some aspects. Figure 5 In the example, the ladder diagram illustrates UE 115 and network entities (such as base station 105 co-located with LMF).
[0097] At point 510, base station 105 (such as a gNB) sends PRS configuration information to UE 115. For example, PRS manager 439 of base station 105 generates a PRS configuration message 452 including PRS configuration information (e.g., 442) and sends it to UE 115. The PRS configuration information (e.g., 442) may include information for the PRS transmission itself, information for the corresponding report, or both. This information may include settings, format, transmission resources, etc. The PRS configuration message may include or correspond to higher-layer messages, such as Layer 3 messages. For example, base station 105 generates an RRC message indicating or including PRS configuration information. In some implementations, the PRS configuration message is sent to multiple UEs. In other implementations, the PRS configuration message is a PDCCH transmission, such as DCI or MAC CE. Additionally or alternatively, the PRS configuration message may schedule multiple PRS transmissions and / or reports (e.g., periodic or semi-static), or schedule / trigger a single PRS transmission and report (e.g., non-periodic).
[0098] At 515, UE 115 may optionally determine the antenna configuration. For example, UE 115's antenna manager 416 determines to set or switch the antenna configuration in response to receiving a message from another device or based on UE determination. UE determination may include determination based on quality conditions, determination based on location, or a combination thereof.
[0099] At 520, UE 115 switches antenna configurations. For example, antenna manager 416 of UE 115 determines a new antenna configuration (e.g., 444) and switches from a first antenna configuration to a second (new) antenna configuration. In some implementations, an antenna configuration may include or be associated with multiple signal paths. For illustration, an antenna configuration may include or be configured with TOA measurements for multiple paths. Alternatively, an antenna configuration may include a single configuration and paths. Antenna configurations can be received or determined locally at the UE. For example, a test request from base station 105 may indicate a specific antenna configuration (e.g., a single path or multiple paths) for a specific PRS, as referenced. Figure 9 Further description. The new antenna configuration can be used for specific types of transmission, such as PRS-only transmission, or multiple types of transmission.
[0100] At point 525, base station 105 sends a PRS to UE 115. For example, base station 105's PRS manager 439 generates a PRS transmission 454 and sends it to UE 115 for measurement operations. In some implementations, the PRS is sent to multiple devices, such as multiple UEs. In other implementations, the PRS is sent to a single device. Alternatively, another positioning RS can be used for positioning measurement operations.
[0101] At 530, UE 115 performs PRS measurement operations based on the switched antenna configuration. For example, UE 115's PRS manager 415 uses the antenna configuration (e.g., 444) to process and measure PRS transmissions to generate measurement 408. UE 115 can use a single signal path or multiple signal paths to measure or evaluate PRS transmissions. Measuring or evaluating PRS transmissions across multiple signal paths can include multiple measurements to determine a single PRS transmission.
[0102] At 535, UE 115 sends a PRS report based on PRS measurement operations. For example, UE 115's PRS manager 415 generates a PRS report message 456 including an indication of antenna configuration and sends it to base station 105, such as the LMF of base station 105. A PRS report 406 can be generated and sent based on PRS configuration information. For example, the timing and structure of the PRS report can be determined based on the PRS configuration information. The PRS report message can include or correspond to higher-layer messages, such as Layer 3 messages. For example, UE 115 generates an LPP message including a PRS measurement report. In other implementations, the PRS report is a PUCCH transmission, such as uplink control information (UCI), PUSCH transmission, or MAC CE. Alternatively, for sidelink operations where UE 115 receives PRS from another UE, the PRS report can be an SCI or MAC CE.
[0103] In some implementations, UE 115 may additionally send PRS reports to one or more other devices (such as another UE, another device, or another base station). (See reference) Figures 7 to 9 The transmission of PRS reports to other devices is further described.
[0104] At 540, base station 105 may optionally determine location information based on PRS reports. For example, the PRS manager 439 of base station 105 (e.g., the LMF of base station 105) may determine the location of UE 115 based on PRS reports (including antenna configuration indicated therefrom) or location assistance information (such as information indirectly indicating location (e.g., TOA / RTT)).
[0105] At 545, base station 105 can send downlink transmissions based on the PRS report. For example, base station 105 (e.g., LMF of base station 105) can use the determined location of UE 115 (e.g., updated or more precise location) to send PDCCH or PDSCH transmissions (e.g., 458).
[0106] Therefore, in Figure 5In the example, the device performs UE-based PRS operations for a network with a co-located architecture. That is, the UE changes the antenna configuration and reports this antenna configuration to the network in the PRS report, where the network is a combined base station with LMF.
[0107] refer to Figure 6 , Figure 6 It is based on a ladder diagram 600 of network-based PRS operations. Figure 6 In the example, the ladder diagram illustrates the UE and network entities (such as base station 105). With Figure 5 Compared to the network configuration in the ladder diagram, Figure 6 The ladder diagram illustrates the PRS report generated by the network with antenna configuration information.
[0108] At 610, base station 105 (such as a gNB) sends PRS configuration information to UE 115. For example, PRS manager 439 of base station 105 generates a PRS configuration message 452 including PRS configuration information (e.g., 442) and sends it to UE 115. The PRS configuration information (e.g., 442) may include information for the PRS transmission itself, information for the corresponding report, or both. This information may include settings, format, transmission resources, etc. The PRS configuration message may include or correspond to higher-layer messages, such as Layer 3 messages. For example, base station 105 generates an RRC message indicating or including the PRS configuration information (e.g., 442). In some implementations, the PRS configuration message is sent to multiple UEs. In other implementations, the PRS configuration message is a PDCCH transmission, such as DCI or MAC CE. Additionally or alternatively, the PRS configuration message may schedule multiple PRS transmissions and / or reports (e.g., periodic or semi-static), or schedule / trigger a single PRS transmission and report (e.g., non-periodic).
[0109] At 615, base station 105 sets the antenna configuration. For example, antenna manager 440 of base station 105 determines a new antenna configuration (e.g., 444) and switches from a first antenna configuration to a second (new) antenna configuration. In some implementations, the antenna configuration may include or be associated with multiple paths. For illustration, the antenna configuration may include multiple signal paths. Alternatively, the antenna configuration may include a single signal path. The antenna configuration may be received or determined locally at base station 105. For example, base station 105 may make one or more quality-based determinations to determine whether to switch the antenna configuration. The new antenna configuration may be used for a specific type of transmission (such as PRS-only transmission) or multiple types of transmission.
[0110] Base station 105 may optionally determine to switch antenna configurations. For example, base station 105 (e.g., LMF of base station 105) may determine to switch antenna configurations in response to receiving a message from another device (e.g., UE) or based on network determination. Network determination may include determination based on quality conditions, determination based on location, or a combination thereof.
[0111] At position 620, UE 115 sends a PRS to base station 105. For example, UE 115's PRS manager 415 generates a PRS transmission 454 and sends it to base station 105 for measurement operations. In some implementations, the PRS is sent to multiple devices, such as multiple UEs and / or base stations. In other implementations, the PRS is sent to a single device. Alternatively, another positioning RS can be used for positioning measurement operations.
[0112] At 625, base station 105 performs a measurement operation on the PRS based on the switched antenna configuration. For example, the PRS manager 439 of base station 105 uses the antenna configuration (e.g., 444) to process and measure the PRS to generate measurement data 408. Base station 105 can use a single signal path or multiple signal paths to measure or evaluate the PRS. Measuring or evaluating PRS transmissions on multiple signal paths may include determining multiple measurements for a single PRS transmission.
[0113] At 630, base station 105 may optionally determine location information based on measurement operations. For example, base station 105 (e.g., LMF of base station 105) may determine the location of UE 115 based on antenna configuration.
[0114] At 635, base station 105 sends a PRS report based on PRS measurement operations. For example, the PRS manager 439 of base station 105 generates a PRS report message 456 including an indication of antenna configuration and sends it to UE 115. A PRS report 406 can be generated and sent based on PRS configuration information. For example, the timing and structure of the PRS report can be determined based on the PRS configuration information. The PRS report message can include or correspond to higher-layer messages, such as Layer 3 messages. For example, base station 105 generates an LPP message including a PRS measurement report. In other implementations, the PRS report is a PDCCH transmission, such as downlink control information (DCI), PDSCH transmission, or MAC CE.
[0115] In some implementations, base station 105 may additionally send PRS reports to one or more other devices (such as another UE, another device, or another base station). (See reference) Figures 7 to 9 The transmission of PRS reports to other devices is further described.
[0116] Alternatively or additionally, base station 105 may send location information to UE 115. Base station 105 may include the location information in a PRS report or in another message.
[0117] At 640, UE 115 can transmit uplink transmissions based on the PRS report. For example, UE 115 can use the antenna configuration in the PRS report to transmit PUCCH or PUSCH transmissions to base station 105 (e.g., 458). Additionally or alternatively, UE 115 can receive or determine the location of base station 105 (e.g., updated or more precise location) and can transmit PUCCH or PUSCH transmissions based on that location. For sidelink operation, UE 115 can transmit PSCCH or PSSCH transmissions based on the PRS report and / or the determined location, or location assistance information (such as information indirectly indicating location (e.g., TOA / RTT)).
[0118] Therefore, in Figure 6 In the example, the device performs network-based PRS operations for a network with a co-location architecture. That is, the network changes its antenna configuration and optionally reports this antenna configuration to the UE in the PRS report, where the network is a combined base station with LMF.
[0119] refer to Figure 7 , Figure 7 It is based on the ladder diagram 700 of UE-based PRS operation. Figure 6 In the example, the ladder diagram illustrates the UE and multiple network entities (such as base station 105 and LMF 705). Figure 5 Compared to the trapezoidal diagram, Figure 7 The ladder diagram illustrates a network architecture in which base station 105 and LMF 705 are separate and non-co-located.
[0120] At 710, LMF 705 sends PRS configuration information to UE 115. For example, LMF 705 generates a PRS configuration message 452 that includes PRS configuration information (e.g., 442) and sends it to UE 115. The PRS configuration information (e.g., 442) may include information for the PRS transmission itself, information for the corresponding report, or both. This information may include settings, format, transmission resources, etc. The PRS configuration message may include or correspond to higher-layer messages, such as Layer 3 messages. For example, base station 105 generates an RRC message that indicates or includes PRS configuration information. In some implementations, the PRS configuration message is sent to multiple UEs. In other implementations, the PRS configuration message is a PDCCH transmission, such as DCI or MAC CE. Additionally or alternatively, the PRS configuration message may schedule multiple PRS transmissions and / or reports (e.g., periodic or semi-static), or schedule / trigger a single PRS transmission and report (e.g., non-periodic).
[0121] Optionally, the LMF 705 can also provide power to one or more other devices (such as another UE) or base stations (such as... Figure 7 The base station 105 shown in the figure sends PRS configuration. Alternatively, in other implementations, the base station 105 may send PRS configuration information to the UE 115 and optionally to the LMF 705.
[0122] At 715, UE 115 sets the antenna configuration. For example, antenna manager 416 of UE 115 determines a new antenna configuration and switches from a first antenna configuration to a second (new) antenna configuration. In some implementations, the antenna configuration may include multiple signal paths. For illustration, an antenna configuration may include multiple signal paths. Alternatively, the antenna configuration may include a single configuration and signal paths. The antenna configuration can be received or determined locally at the UE. For example, a test request from base station 105 or LMF 705 may indicate a specific antenna configuration (e.g., a single path or multiple paths) for a specific PRS, as referenced. Figure 9 Further description.
[0123] At 720, base station 105 sends a PRS to UE 115. For example, base station 105's PRS manager 439 generates a PRS transmission 454 and sends it to UE 115 for measurement operations. In some implementations, the PRS is sent to multiple devices, such as multiple UEs. In other implementations, the PRS is sent to a single device. Alternatively, another positioning RS can be used for positioning measurement operations.
[0124] At 725, UE 115 performs a measurement operation on the PRS based on the switched antenna configuration. For example, UE 115's PRS manager 415 uses the antenna configuration (e.g., 444) to process and measure the PRS to generate measurement data 408. UE 115 can use a single signal path or multiple signal paths to measure or evaluate the PRS.
[0125] At 730, UE 115 sends a PRS report based on PRS measurement operations. For example, UE 115's PRS manager 415 generates a PRS report message 456 including an indication of antenna configuration and sends it to LMF 705. PRS report 406 can be generated and sent based on PRS configuration information. For example, the timing and structure of the PRS report can be determined based on the PRS configuration information. The PRS report message can include or correspond to higher-layer messages, such as Layer 3 messages. For example, base station 105 generates an LPP message including a PRS measurement report. In other implementations, the PRS report is a PUCCH transmission, such as Uplink Control Information (UCI), PUSCH transmission, or MAC CE. Additionally or alternatively, UE 115 sends a PRS report message to base station 105. Alternatively, for a sidelink operation where UE 115 receives a PRS from another UE, the PRS report can be an SCI or MAC CE.
[0126] At 735, LMF 705 may optionally determine location information based on the PRS report. For example, base station 105 (e.g., the LMF of base station 105) may determine the location of UE 115 based on the PRS report (including the antenna configuration indicated therefrom), or it may determine location assistance information.
[0127] At 740, LMF 705 transmits the determined location information based on the PRS report. For example, LMF 705 may transmit the location information or location assistance information of UE 115 to base station 105 based on the PRS report (including the antenna configuration indicated therefrom). Additionally or alternatively, LMF 705 may transmit the location information or location assistance information of UE 115 to UE 115.
[0128] At 745, base station 105 can transmit downlink transmissions based on PRS reports. For example, base station 105 can use the antenna configuration indicated by UE 115 to transmit PDCCH or PDSCH transmissions (e.g., 458). As another example, base station 105 can use the determined location (e.g., updated or more precise location) or location assistance information of UE 115 to transmit PDCCH or PDSCH transmissions.
[0129] Therefore, in Figure 7In the example, the device performs UE-based PRS operations based on a distributed network architecture. That is, the UE reports antenna configuration information to the LMF, which is separate from the base station, in the PRS report.
[0130] refer to Figure 8 , Figure 8 It is based on a ladder diagram 800 of network-based PRS operations. Figure 8 In the example, the ladder diagram illustrates the UE and network entities (such as base station 105 and LMF 805). With Figure 6 Compared to the network configuration in the ladder diagram, Figure 8 The ladder diagram illustrates the PRS report generated by the network, which contains antenna configuration information for a distributed network architecture.
[0131] At 810, LMF 805 sends PRS configuration information to UE 115. For example, PRS manager 439 of base station 105 generates a PRS configuration message 452 including PRS configuration information (e.g., 442) and sends it to UE 115. The PRS configuration information (e.g., 442) may include information for the PRS transmission itself, information for the corresponding report, or both. This information may include settings, format, transmission resources, etc. The PRS configuration message may include or correspond to higher-layer messages, such as Layer 3 messages. For example, base station 105 generates an RRC message indicating or including the PRS configuration information (e.g., 442). In some implementations, the PRS configuration message is sent to multiple UEs. In other implementations, the PRS configuration message is a PDCCH transmission, such as DCI or MAC CE. Additionally or alternatively, the PRS configuration message may schedule multiple PRS transmissions and / or reports (e.g., periodic or semi-static), or schedule / trigger a single PRS transmission and report (e.g., non-periodic).
[0132] Optionally, the LMF 805 also directs data to one or more other devices (such as another UE, for example, such as...). Figure 8 The UE 115 (or base station) shown in the diagram sends PRS configuration information. Alternatively, in other implementations, the base station 105 may send PRS configuration information to the UE 115 and optionally to the LMF 805.
[0133] At 815, base station 105 sets the antenna configuration. For example, antenna manager 440 of base station 105 determines a new antenna configuration and switches from a first antenna configuration to a second (new) antenna configuration. In some implementations, the antenna configuration may include multiple signal paths. For illustration, an antenna configuration may include multiple antenna / signal paths. Alternatively, the antenna configuration may include a single configuration and signal path. The antenna configuration can be received or determined locally at the UE. For example, a test request from LMF 805 may indicate a specific antenna configuration (e.g., a single path or multiple paths) for a specific PRS, as referenced. Figure 9 Further description.
[0134] Base station 105 may optionally determine the switching antenna configuration. For example, base station 105 may determine the switching antenna configuration in response to receiving a message from another device (e.g., LMF 805) or based on network / base station determination. Network / base station determination may include determination based on quality conditions, determination based on location, or a combination thereof.
[0135] At 820, UE 115 sends a PRS to base station 105. For example, UE 115's PRS manager 415 generates a PRS transmission 454 and sends it to base station 105 for measurement operations. In some implementations, the PRS is sent to multiple devices (such as multiple UEs and / or base stations). In other implementations, the PRS is sent to a single device. Alternatively, another RS can be used for location measurement operations.
[0136] At 825, base station 105 performs a measurement operation on the PRS based on the switched antenna configuration. For example, the PRS manager 439 of base station 105 uses the antenna configuration (e.g., 444) to process and measure the PRS to generate measurement data 408. Base station 105 can use a single signal path or multiple signal paths to measure or evaluate the PRS.
[0137] At 830, base station 105 sends a PRS report based on PRS measurement operations. For example, the PRS manager 439 of base station 105 generates and sends a PRS report message 456, including an indication of antenna configuration, to LMF 805 and optionally to UE 115. The PRS report 406, which generates and sends the PRS report message 456, can be based on PRS configuration information. For example, the timing and structure of the PRS report can be determined based on the PRS configuration information. The PRS report may include or correspond to higher-layer messages, such as Layer 3 messages. For example, base station 105 generates an LPP message that includes or indicates antenna configuration. In other implementations, the PRS report is a PDCCH transmission, such as downlink control information (DCI), PDSCH transmission, or MAC CE. In some implementations, base station 105 may additionally send the PRS report to one or more other devices, such as another UE, another device, or another base station.
[0138] At 835, LMF 805 may optionally determine location information based on the PRS report. For example, LMF 805 may determine the location of UE 115 based on the PRS report (including the antenna configuration indicated therefrom), or it may determine location assistance information.
[0139] At 840, LMF 805 can transmit the determined location information. For example, LMF 805 can transmit the location information or location assistance information of base station 105 to UE 115 based on the PRS report (including the antenna configuration indicated therefrom). Additionally or alternatively, LMF 805 can transmit the location information or location assistance information of base station 105 to base station 105.
[0140] At 845, UE 115 can transmit uplink transmissions based on the PRS report. For example, UE 115 can use the antenna configuration in the PRS report to transmit PUCCH or PUSCH transmissions to base station 105. Additionally or alternatively, UE 115 can receive or determine the location of base station 105 (e.g., an updated or more precise location) based on the PRS report and can transmit PUCCH or PUSCH transmissions based on that location (e.g., 458). For illustration, UE 115 can determine this location based on location assistance information received from LMF 805.
[0141] Therefore, in Figure 8 In the example, the device performs network-based PRS operations for a network with a distributed architecture. That is, the base station changes the antenna configuration and reports the antenna configuration to the network / LMF in the PRS report, where the base station and the network / LMF are separate entities.
[0142] refer to Figure 9 , Figure 9 It is based on a ladder diagram 900 of network-based PRS operations. Figure 9 In the example, the ladder diagram illustrates the UE and network entities (such as base station 105 and LMF 905). With Figure 5 Compared to the network configuration in the ladder diagram, Figure 9 The ladder diagram illustrates the PRS report generated by the UE, which has a similar structure to... Figure 7 Antenna configuration information for a distributed network architecture.
[0143] At 910, LMF 905 determines whether to test the additional antenna configuration of one or more wireless communication devices. For example, LMF 905 determines to test the additional antenna configuration used for UE 115.
[0144] At 915, LMF 905 sends a test configuration to UE 115. For example, LMF 905 determines that an additional antenna configuration (e.g., 444) for UE 115 needs to be tested and sends a test configuration message indicating the antenna configuration (e.g., one or more paths) to be tested.
[0145] At 920, UE 115 switches antenna configurations. For example, UE 115's antenna manager 416 determines a new antenna configuration based on a test configuration message and switches from the current antenna configuration to the indicated one. In some implementations, an antenna configuration may include multiple signal paths. For illustration, an antenna configuration may include multiple antenna / signal paths. Alternatively, an antenna configuration may include a single configuration and signal path.
[0146] At position 925, base station 105 sends a PRS to UE 115. For example, base station 105's PRS manager 439 generates a PRS transmission 454 and sends it to UE 115 for measurement operations. In some implementations, the PRS transmission is sent to multiple devices (such as multiple UEs and / or base stations). In other implementations, the PRS transmission is sent to a single device. Alternatively, another positioning RS can be used for positioning measurement operations.
[0147] At 930, UE 115 performs a measurement operation on the PRS based on the indicated antenna configuration. For example, UE 115's PRS manager 415 uses the antenna configuration (e.g., 444) indicated by the test configuration message to process and measure the PRS to generate measurement data 408. UE 115 can use a single signal path or multiple signal paths to measure or evaluate the PRS.
[0148] At 935, UE 115 sends a PRS report based on PRS measurement operations. For example, UE 115's PRS manager 415 generates and sends a PRS report message 456, including an indication of antenna configuration, to LMF 905 and optionally to base station 105. A PRS report 406, which generates and sends the PRS report message 456, can be based on PRS configuration information. For example, the timing and structure of the PRS report can be determined based on the PRS configuration information. The PRS report message may include or correspond to higher-layer messages, such as Layer 3 messages. For example, base station 105 generates an LPP message that includes or indicates antenna configuration. In other implementations, the PRS report is a PUCCH transmission, such as Uplink Control Information (UCI), PUSCH transmission, or MAC CE. Alternatively, for a sidelink operation where UE 115 receives a PRS from another UE, the PRS report may be an SCI or MAC CE. In some implementations, UE 115 may additionally send the PRS report to one or more other devices, such as another UE, another device, or another base station.
[0149] At 940, LMF 905 may optionally determine location information based on the PRS report. For example, LMF 905 may determine the location or location assistance information of UE 115 based on the PRS report (including the antenna configuration indicated therefrom).
[0150] At position 945, LMF 905 can transmit the determined location information. For example, LMF 905 can determine the location or location assistance information of base station 105 and / or UE 115 based on the PRS report (including the antenna configuration indicated therefrom) and transmit this location to base station 105. Alternatively or additionally, the location or location assistance information of base station 105 and / or UE 115 can be determined based on the PRS report (including the antenna configuration indicated therefrom) and transmitted to UE 115, such as... Figure 9 As shown by the dashed line in the image.
[0151] At 950, base station 105 can transmit downlink transmissions based on the PRS report. For example, base station 105 can use the antenna configuration in the PRS report to transmit PDCCH or PDSCH transmissions to UE 115 (e.g., 458). Additionally or alternatively, base station 105 can receive or determine the location of base station 105 (e.g., an updated or more precise location) based on the PRS report, and can transmit PDCCH or PDSCH transmissions based on that location.
[0152] Therefore, in Figure 9In the example, the device performs a test configuration operation in response to PRS antenna configuration feedback. That is, the network device can determine one or more antenna configurations that the device wants to test, and the network device (e.g., LMF) instructs the device to test (multiple) configurations during one or more subsequent PRS transmissions.
[0153] Alternatively or alternatively, in other implementations, it can be added, removed, or replaced. Figures 4 to 9 One or more operations. For example, in some implementations, Figure 5 and Figure 6 The example steps can be used together. For illustration, Figure 5 UE / uplink operation can be with Figure 6 Used together with network / downlink operations. As another example, Figure 7 and Figure 8 The example steps can be used together. For illustration, Figure 7 UE / uplink operation can be with Figure 8 It is used in conjunction with network / downlink operations. In some such implementations, round-trip time (RTT) can be used for location determination. As yet another example, Figure 9 Some of the steps in the process can be compared with Figures 4 to 8 Any of them can be used together. For illustration, except... Figures 4 to 8 In addition to positioning and determining operations, or to replace these operations, one can also use... Figure 9 Test configuration operations.
[0154] Figure 10 These are flowcharts illustrating example block diagrams performed by a wireless communication device (e.g., a UE or a base station) configured according to one aspect of this disclosure. These example block diagrams will also relate to, for example... Figure 12 The UE 115 shown in the figure is used for description. Figure 12 This is a block diagram illustrating a UE 115 configured according to one aspect of this disclosure. UE 115 includes, as follows: Figure 2 and / or Figure 4 The diagram illustrates the structure, hardware, and components of UE 115. For example, UE 115 includes a controller / processor 280 that operates to execute logical or computer instructions stored in memory 282, and components that control UE 115 to provide its features and functions. Under the control of the controller / processor 280, UE 115 transmits and receives signals via wireless radios 1201a-r and antennas 252a-r. Radios 1201a-r include various components and hardware, such as… Figure 2As shown for UE 115, it includes a modulator / demodulator 254a-r, a MIMO detector 256, a receiver processor 258, a transmitter processor 264, and a TX MIMO processor 266. Figure 12 As illustrated in the example, memory 282 stores PRS logic 1202, PRS report logic 1203, antenna configuration logic 1204, report configuration data 105, antenna configuration data 1206, and setting data 1207.
[0155] PRS logic 1202 may include or correspond to PRS managers 415, 439, and can be configured to... Figure 4 The PRS managers 415 and 439. For example, PRS logic 1202 can determine resources for PRS transmission and / or feedback, PRS feedback settings, perform PRS measurement operations, or combinations thereof.
[0156] PRS reporting logic 1203 may include or correspond to PRS managers 415, 439, and can be configured to... Figure 4 The PRS managers 415 and 439. For example, PRS reporting logic 1203 can generate and send a PRS report indicating the antenna configuration used to measure PRS transmission.
[0157] Antenna configuration logic 1204 may include or correspond to antenna managers 416, 440, and can be configured to perform actions such as those referenced from antenna managers 416, 440 and Figure 4 One or more operations as described. For example, antenna configuration logic 1204 can determine to use a new antenna configuration and switch the antenna configuration.
[0158] Report configuration data 1205 may include or correspond to PRS report data 406. Antenna configuration data 1206 may include or correspond to antenna setting data 444. Setting data 1207 may include or correspond to PRS setting data 442.
[0159] At box 1000, a wireless communication device (such as a UE or base station) receives a Position Reference Signal (PRS) configuration transmission from a network entity. For example, as a reference... Figures 4 to 9 As described above, UE 115 uses radio station 1201a-r and antenna 252a-r to receive PRS configuration transmission 452 from LMF 705, 805, and 905. The PRS configuration transmission may include or correspond to RRC transmission. The LMF may be separate from or co-located with the base station.
[0160] UE 115 can optionally configure the antenna configuration for PRS transmission. For example, as shown in Reference Figures 4 to 9As described, the antenna manager 416 of UE 115 sets a new antenna configuration or parameters for an upcoming PRS transmission scheduled by the PRS configuration transmission. For illustration, the antenna manager 416 of UE 115 can switch the antenna panel used for receiving and / or processing the PRS transmission (e.g., switching from a first panel to a second panel). The antenna manager 416 of UE 115 can determine this new configuration based on the UE's determination or based on a message received from another device (e.g., a test configuration message). The antenna configuration may include beamwidth parameters, subarray parameters, array parameters, panel parameters, or combinations thereof.
[0161] At box 1001, UE 115 can receive PRS transmissions from a second wireless communication device based on PRS configuration transmissions. For example, UE 115 uses radio station 1201a-r and antenna 252a-r to receive PRS transmission 454 from base station 105 based on transmission resources indicated by the PRS configuration transmissions, as referenced. Figures 4 to 9 As described, the PRS manager 415 and / or PRS logic 1202 of UE 115 can determine the transport resources indicated by the PRS configuration transport 452.
[0162] At box 1002, UE 115 determines the PRS measurement report based on the antenna configuration. For example, UE 115 performs measurement operations on PRS transmissions based on the antenna configuration. For illustration, see reference... Figures 4 to 9 As described, the PRS manager 415 and / or PRS logic 1202 of UE 115 use antenna configuration PRS logic 1302 to perform measurement operations on PRS transmission 454. In some aspects, UE 115 may perform tracking loop measurement operations on PRS transmissions. Determining the PRS measurement report based on antenna configuration may also include generating the PRS measurement report based on measurement operations (or multiple operations).
[0163] In some implementations, UE 115 may use a group delay associated with the antenna configuration to shift timing / PRS measurements to generate measurements of the antenna configuration during the reception of PRS transmission 454. These measurements may be included in or indicated by the PRS report in report transmission 456. Such measurements may enable the generation of more accurate ranging estimates by UE 115 or another device.
[0164] In other implementations, UE 115 may use a group delay associated with the antenna configuration after receiving PRS transmission 454. For example, after receiving PRS transmission 454 and / or measuring the PRS transmission with another antenna configuration, UE 115 may use the group delay associated with the antenna configuration to adjust the measurement or a ranging estimate determined based on the measurement. Therefore, in order to measure the PRS transmission based on the antenna configuration, UE 115 may use the antenna configuration to receive the PRS transmission and generate the measurement, or UE 115 may adjust the measurement associated with another antenna configuration based on the antenna configuration.
[0165] At box 1003, UE 115 sends a PRS measurement report indicating the antenna configuration. For example, as referenced... Figures 4 to 9 As described, UE 115 uses radios 1201a-r and antennas 252a-r to transmit a PRS measurement report 456 indicating or including antenna configuration (e.g., 444 / 1206). The PRS measurement report 456 may be generated by PRS reporting logic 1203 and / or PRS managers 415, 439. The PRS measurement report may include or correspond to LPP transmissions. Alternatively, the PRS measurement report may include or correspond to DCI, UCI, SCI, or MAC CE transmissions. The PRS measurement report may include or indicate antenna type information, antenna placement information, beamwidth information, or a combination thereof.
[0166] In other implementations, the wireless communication device (e.g., UE or base station) may perform additional blocks (or the wireless communication device may be configured to perform additional operations). For example, UE 115 may perform one or more of the operations described above. As another example, UE 115 may perform one or more aspects presented below.
[0167] In one or more aspects, the technology for supporting enhanced PRS feedback operation may include additional aspects, such as any single aspect or any combination of aspects described below or in conjunction with one or more other processes or devices described elsewhere herein. In one or more aspects, supporting enhanced PRS feedback operation may include an apparatus configured to: receive a Positioning Reference Signal (PRS) configuration transmission from a network entity; receive a PRS transmission from a second wireless communication device based on the PRS configuration transmission; perform a measurement operation on the PRS transmission based on an antenna configuration; and transmit a PRS measurement report based on the measurement operation, the PRS measurement report indicating the antenna configuration. Furthermore, the apparatus may perform or operate according to one or more aspects described below. In some implementations, the apparatus includes a wireless device, such as a UE. In some implementations, the apparatus may include at least one processor and memory coupled to the processor. The processor may be configured to perform the operations described herein with respect to the apparatus. In some other implementations, the apparatus may include a non-transitory computer-readable medium on which program code is recorded, and the program code may be executed by a computer to cause the computer to perform the operations described herein with reference to the apparatus. In some implementations, the apparatus may include one or more components configured to perform the operations described herein. In some implementations, a wireless communication method may include one or more operations described herein with reference to the apparatus.
[0168] In the first aspect, the UE generates a PRS measurement report based on measurement operations and antenna configuration.
[0169] In the second aspect, either alone or in combination with the first aspect, the UE receives communication from a second radio device, which is transmitted based on location information derived from a PRS measurement report.
[0170] In the third aspect, the UE sends the PRS measurement report to the network entity, either alone or in combination with one or more of the above aspects, and the UE further: receives a test request from the network entity in response to the PRS measurement report, the test request indicating a second antenna configuration; receives a second PRS transmission from a second wireless communication device based on the PRS configuration transmission; performs a second measurement operation on the second PRS transmission based on the second antenna configuration; and sends a second PRS measurement report based on the second measurement operation.
[0171] In the fourth aspect, either alone or in combination with one or more of the aspects mentioned above, the PRS configuration transmission is an RRC transmission, and wherein multiple PRS transmissions are scheduled by an RRC transmission.
[0172] In the fifth aspect, either alone or in combination with one or more of the above aspects, the wireless communication device is a UE, and wherein the second wireless communication device is a base station or another UE.
[0173] In the sixth aspect, either alone or in combination with one or more of the above aspects, the wireless communication device is a base station, and wherein the second wireless communication device is a UE.
[0174] In the seventh aspect, either alone or in combination with one or more of the aspects mentioned above, the network entity is the Location Management Function (LMF).
[0175] In the eighth aspect, either alone or in combination with one or more of the aspects mentioned above, the LMF is co-located with the base station.
[0176] In the ninth aspect, either alone or in combination with one or more of the aspects mentioned above, the PRS measurement report is a UCI transmission or an SCI transmission.
[0177] In the tenth aspect, either alone or in combination with one or more of the aspects mentioned above, the PRS measurement report is a DCI transmission.
[0178] In the eleventh aspect, either alone or in combination with one or more of the aspects mentioned above, the PRS measurement report is transmitted via MAC CE.
[0179] In the twelfth aspect, alone or in combination with one or more of the above aspects, the PRS measurement report is an LTE Location Protocol (LPP) message.
[0180] In the thirteenth aspect, either alone or in combination with one or more of the aspects described above, the UE may optionally maintain the antenna configuration; receive a second PRS transmission from the second wireless communication device based on the PRS configuration transmission; perform a second measurement operation on the second PRS transmission based on the antenna configuration; generate a second PRS measurement report indicating the antenna configuration; and send the second PRS measurement report based on the second measurement operation, the second PRS measurement report indicating the antenna configuration.
[0181] In the fourteenth aspect, either alone or in combination with one or more of the aspects mentioned above, the UE: optionally maintains the antenna configuration; receives a second PRS transmission from the second wireless communication device based on the PRS configuration transmission; performs a second measurement operation on the second PRS transmission based on the antenna configuration; generates a second PRS measurement report by refraining from including the antenna configuration; and sends the second PRS measurement report based on the second measurement operation, the second PRS measurement report not indicating the antenna configuration.
[0182] In the fifteenth aspect, performing a measurement operation on PRS transmission, either alone or in combination with one or more of the above aspects, includes performing a measurement on an antenna configuration.
[0183] In the sixteenth aspect, performing measurement operations on PRS transmission, either alone or in combination with one or more of the above aspects, includes performing multiple measurements on multiple signal paths of the antenna configuration, each measurement targeting a corresponding signal path.
[0184] In the seventeenth aspect, alone or in combination with one or more of the above aspects, the antenna configuration includes beamwidth parameters, subarray parameters, array parameters, panel parameters, or combinations thereof.
[0185] In the eighteenth aspect, either alone or in combination with one or more of the aspects mentioned above, the PRS measurement report (e.g., its antenna configuration information) includes antenna type information, antenna placement information, and beamwidth information.
[0186] In the nineteenth aspect, either alone or in combination with one or more of the aspects mentioned above, the PRS measurement report includes or corresponds to the UE capability report (e.g., the ProvideCapabilities message).
[0187] In the twentieth aspect, either alone or in combination with one or more of the foregoing aspects, the PRS measurement report includes or corresponds to a request location information message. Alternatively, the PRS measurement report includes or corresponds to a request assistance data message (e.g., a RequestAssistanceData message).
[0188] In aspect 21, either alone or in combination with one or more of the aspects mentioned above, the PRS measurement report includes or corresponds to a location information message (e.g., a ProvideLocationInformation message).
[0189] In aspect twenty-two, either alone or in combination with one or more of the aspects described above, the UE determines the antenna configuration and sets the antenna configuration for PRS transmission. The antenna configuration is used to receive PRS transmissions and generate PRS measurements; the PRS measurements are indicated by a PRS measurement report and are associated with the antenna configuration.
[0190] In the twenty-third aspect, performing a measurement operation on a PRS transmission based on an antenna configuration, either alone or in combination with one or more of the foregoing aspects, includes: generating a PRS measurement by a wireless communication device during the reception of a PRS transmission; and adjusting the PRS measurement by the wireless communication device based on a group delay associated with the antenna configuration to generate an offset PRS measurement, wherein the offset PRS measurement is indicated by a PRS measurement report.
[0191] In the twenty-fourth aspect, performing measurement operations on PRS transmission based on antenna configuration, either alone or in combination with one or more of the above aspects, includes: generating PRS measurements by a wireless communication device during the reception of PRS transmission; adjusting the PRS measurements by the wireless communication device based on a group delay associated with the antenna configuration to generate offset PRS measurements; and adjusting a ranging estimate by the wireless communication device based on the offset PRS measurements, wherein the ranging estimate is indicated by a PRS measurement report.
[0192] In aspect 25, either alone or in combination with one or more of the aspects mentioned above, the UE: receives a message indicating positioning assistance information, the positioning assistance information being determined based on a new antenna configuration indicated by a PRS measurement report; determines positioning information based on the positioning assistance information; and transmits communications based on the positioning information.
[0193] In the twenty-sixth aspect, either alone or in combination with one or more of the aspects mentioned above, the UE: transmits a second PRS transmission to a second wireless communication device; and receives a second PRS measurement report from the second wireless communication device in response to the second PRS transmission, the second PRS measurement report indicating a new antenna configuration of the second wireless communication device.
[0194] In the twenty-seventh aspect, either alone or in combination with one or more of the aspects described above, the UE: receives a second PRS transmission from a second wireless communication device based on a PRS configuration transmission; performs a measurement operation (e.g., a second measurement operation) on the second PRS transmission based on an antenna configuration; determines, based on the measurement operation, to use an antenna configuration; and avoids sending a second PRS measurement report based on the determination to continue using the antenna configuration (e.g., not changing the antenna configuration). In some aspects, the UE may generate and send a PRS report only if the antenna configuration has been changed.
[0195] Therefore, wireless communication devices can perform enhanced PRS feedback operations. By performing enhanced PRS feedback operations, throughput and reliability can be increased, and such operations can enable enhancements in positioning estimation operations and / or for advanced wireless devices (e.g., devices with distributed antennas).
[0196] Figure 11 This is a flowchart illustrating example blocks performed by a wireless communication device (e.g., a UE or network entity (such as a base station or LMF)) configured according to one aspect of this disclosure. Further details will also be provided regarding... Figure 13 The example box is described using the base station 105 shown in the figure. Figure 13 This is a block diagram illustrating a base station 105 configured according to one aspect of the present disclosure. Base station 105 includes, as shown below... Figure 2 and / or Figure 4 The base station 105 illustrates the structure, hardware, and components. For example, base station 105 includes a controller / processor 280 that operates to execute logical or computer instructions stored in memory 282, and controls the components that provide the features and functions of base station 105. Under the control of the controller / processor 280, base station 105 transmits and receives signals via radio station 1301a-t and antenna 234a-t. Radio station 1301a-t includes various components and hardware, such as… Figure 2 As illustrated in the diagram for base station 105, it includes a modulator / demodulator 232a-r, a MIMO detector 236, a receiver processor 238, a transmitter processor 220, and a TX MIMO processor 230. Figure 13 As illustrated in the example, memory 282 stores PRS logic 1302, PRS report logic 1303, antenna configuration logic 1304, report configuration data 1305, antenna configuration data 1306, and setting data 1307.
[0197] PRS logic 1302 may include or correspond to PRS managers 415, 439, and can be configured to... Figure 4 The PRS managers 415 and 439. For example, PRS logic 1302 can determine resources for PRS transmission and / or feedback, PRS feedback settings, perform PRS measurement operations, or combinations thereof.
[0198] PRS reporting logic 1303 may include or correspond to PRS managers 415, 439, and can be configured to... Figure 4 The PRS managers 415 and 439. For example, PRS reporting logic 1303 can generate and send PRS reports that indicate the antenna configuration used to measure PRS transmission.
[0199] Antenna configuration logic 1304 may include or correspond to antenna managers 416, 440, and can be configured to perform actions such as those referenced to antenna managers 416, 440. Figure 4 One or more operations as described. For example, antenna configuration logic 1304 can determine to use a new antenna configuration and switch the antenna configuration.
[0200] Report configuration data 1305 may include or correspond to PRS report data 406. Antenna configuration data 1306 may include or correspond to antenna setting data 444. Setting data 1307 may include or correspond to PRS setting data 442.
[0201] At box 1100, a wireless communication device (such as base station 105, LMF 705-905, or UE 115) sends a Position Reference Signal (PRS) configuration transmission to the wireless communication device. For example, as a reference... Figures 4 to 9 As described, base station 105 uses radio 1301a-t and antenna 234a-t to send PRS configuration transmission 452 to UE 115. The PRS manager 440 and / or PRS logic 1302 of base station 105 can generate PRS configuration transmission 452. Alternatively, the LMF of base station 105 can generate PRS configuration transmission 452. PRS configuration transmission may include or correspond to PSCCH transmission and / or PSSCH transmission from another UE.
[0202] At box 1101, base station 105 receives a PRS measurement report indicating a new antenna configuration for the wireless communication device. For example, as referenced... Figures 4 to 9 As described, base station 105 uses radio 1301a-t and antenna 234a-t to receive a PRS measurement report 456 from UE 115 indicating a new antenna configuration (e.g., 444 / 1306) for UE 115. For illustration, the PRS manager 440 and / or PRS logic 1302 of base station 105 can determine the antenna configuration based on an indicator (e.g., an antenna configuration index) or based on the configuration or antenna parameters included in the PRS measurement report. The antenna configuration may include beamwidth parameters, subarray parameters, array parameters, panel parameters, or combinations thereof. The PRS measurement report may include or indicate antenna type information, antenna placement information, and beamwidth information.
[0203] PRS measurement reports may include or correspond to UE capability reports, requests for auxiliary data messages, or messages providing location information. Additionally or alternatively, PRS measurement reports may include or correspond to DCI, UCI, SCI, or MAC CE.
[0204] In other implementations, network entities (e.g., base station 105 or LMF 705-905) may perform additional boxes (or network entities may be configured to perform additional operations). For example, base station 105 may perform one or more of the operations described above. As another example, base station 105 may perform one or more aspects presented below.
[0205] In one or more aspects, the technology for supporting enhanced PRS feedback operation may include additional aspects, such as any single aspect or any combination of aspects described below, or in conjunction with one or more other processes or devices described elsewhere herein. In one or more aspects, supporting enhanced PRS feedback operation may include an apparatus configured to transmit a Positioning Reference Signal (PRS) configuration transmission to a wireless communication device; and to receive a PRS measurement report from the wireless communication device indicating a new antenna configuration of the wireless communication device. Furthermore, the apparatus may perform or operate according to one or more aspects described below. In some implementations, the apparatus includes a wireless device, such as a base station. In some implementations, the apparatus may include at least one processor and memory coupled to the processor. The processor may be configured to perform the operations described herein with respect to the apparatus. In some other implementations, the apparatus may include a non-transitory computer-readable medium on which program code is recorded, and the program code may be executed by a computer to cause the computer to perform the operations described herein with reference to the apparatus. In some implementations, the apparatus may include one or more components configured to perform the operations described herein. In some implementations, a wireless communication method may include one or more operations described herein with reference to the apparatus.
[0206] In the first aspect, a network entity (e.g., a base station or LMF) determines location assistance information for a wireless communication device based on a new antenna configuration indicated by a PRS measurement report; and sends a message indicating the location assistance information to a second wireless communication device.
[0207] In the second aspect, either alone or in combination with the first aspect, the positioning assistance information indicates the location (e.g., coordinates) of the wireless communication device, the timing delay associated with the wireless communication device, which antenna panel is more accurate, which antenna panel has a smaller calibration error, or a combination thereof.
[0208] In the third aspect, either alone or in combination with one or more of the aspects mentioned above, the network entity: determines the second antenna configuration of the wireless communication device based on the PRS measurement report; sends a test request in response to the PRS measurement report, the test request indicating the second antenna configuration of the wireless communication device; and receives a second PRS measurement report based on the second antenna configuration.
[0209] In the fourth aspect, either alone or in combination with one or more of the aspects mentioned above, the network entity sends PRS transmissions to the wireless communication device based on the PRS configuration transmission.
[0210] In the fifth aspect, either alone or in combination with one or more of the aspects mentioned above, the network entity sends communications to wireless devices based on location information derived from PRS measurement reports.
[0211] In the sixth aspect, either alone or in combination with one or more of the aspects mentioned above, the PRS configuration transmission is an RRC transmission, and wherein multiple PRS transmissions are scheduled by an RRC transmission.
[0212] In the seventh aspect, either alone or in combination with one or more of the aspects mentioned above, the network entity is a base station, and the wireless communication device is a UE.
[0213] In the eighth aspect, either alone or in combination with one or more of the aspects mentioned above, the network entity is the Location Management Function (LMF).
[0214] In the ninth aspect, the LMF is co-located with the base station, either alone or in combination with one or more of the aspects mentioned above.
[0215] In the tenth aspect, either alone or in combination with one or more of the aspects mentioned above, the PRS measurement report is a UCI transmission or an SCI transmission.
[0216] In the eleventh aspect, either alone or in combination with one or more of the aspects mentioned above, the PRS measurement report is a DCI transmission.
[0217] In the twelfth aspect, either alone or in combination with one or more of the aspects mentioned above, the PRS measurement report is transmitted via MAC CE.
[0218] In the thirteenth aspect, either alone or in combination with one or more of the aspects mentioned above, the PRS measurement report is an LTE Location Protocol (LPP) message.
[0219] In the fourteenth aspect, either alone or in combination with one or more of the aspects mentioned above, the network entity: transmits a second PRS transmission based on the PRS configuration transmission; and receives a second PRS measurement report in response to the second PRS transmission, the second PRS measurement report indicating the antenna configuration.
[0220] In the fifteenth aspect, either alone or in combination with one or more of the aspects mentioned above, the network entity: transmits a second PRS transmission based on the PRS configuration transmission; and receives a second PRS measurement report in response to the second PRS transmission, the second PRS measurement report not indicating antenna configuration.
[0221] In the sixteenth aspect, either alone or in combination with one or more of the aspects mentioned above, the network entity: receives a second PRS transmission from a wireless communication device; performs a second measurement operation on the second PRS transmission; and sends a second PRS measurement report based on the second measurement operation, the second PRS measurement report indicating a new antenna configuration for the network entity.
[0222] In the seventeenth aspect, either alone or in combination with one or more of the aspects mentioned above, the network entity determines a new antenna configuration.
[0223] In the eighteenth aspect, performing a second measurement operation on the second PRS transmission, either alone or in combination with one or more of the above aspects, includes performing a measurement on an antenna configuration.
[0224] In the nineteenth aspect, performing a second measurement operation on the second PRS transmission, either alone or in combination with one or more of the above aspects, includes performing multiple measurements on multiple signal paths of the new antenna configuration, each measurement targeting a corresponding signal path.
[0225] In the twentieth aspect, either alone or in combination with one or more of the foregoing aspects, the antenna configuration includes beamwidth parameters, subarray parameters, array parameters, panel parameters, or combinations thereof.
[0226] In aspect 21, either alone or in combination with one or more of the aspects mentioned above, the PRS measurement report includes antenna type information, antenna placement information, and beamwidth information.
[0227] In aspect 22, either alone or in combination with one or more of the aspects mentioned above, the PRS measurement report includes or corresponds to the UE capability report.
[0228] In aspect 23, either alone or in combination with one or more of the aspects mentioned above, the PRS measurement report includes or corresponds to a request for auxiliary data message.
[0229] In aspect 24, either alone or in combination with one or more of the aspects mentioned above, the PRS measurement report includes or corresponds to a message providing location information.
[0230] Therefore, wireless communication devices can perform enhanced PRS feedback operations. By performing enhanced PRS feedback operations, throughput and reliability can be increased, and such operations can enable enhancements in location estimation operations and / or for advanced wireless devices (e.g., devices with distributed antennas).
[0231] Figure 14 and Figure 15The diagram illustrates a block diagram of a de-aggregated RAN type network. The aspects described herein can be used with traditional RANs or with de-aggregated RANs (also known as open RANs). In traditional RANs, the core, baseband unit, and radio head end (RH) are designed as integrated software / hardware. In de-aggregated RANs, the RAN architecture is flexible, and various parts or components of the RAN can be included in different devices, in different locations, and / or virtualized, such as... Figure 14 Schematic diagram 1400 and Figure 15 As illustrated in schematic diagram 1500. For example, different layers can be separated between components of the de-aggregated RAN (e.g., CU, DU, and RU). Examples of such separation between layers could include separating layers between RAN components after a PDCP layer, after a lower MAC layer, after a higher physical layer, and / or after a lower physical layer, such as... Figure 14 The choices are 2, 6, 7, and 8. Figure 15 As shown in option 6.
[0232] In a specific de-aggregated RAN architecture, a central unit (CU) may be associated (e.g., for control) with multiple distributed units (DUs) and (e.g., for control) with multiple radio units (also called remote radio units, RUs). CUs may include higher layers, such as RRC and PDCP layers, logic, and control operations. DUs may include lower layers, such as RLC, MAC, and upper physical layers, logic, and control operations. RUs may include other lower layers, such as physical layers, logic, and control operations. For illustration, a DU may handle layer 2 (e.g., MAC) functions, and one or more CUs may control beam and panel (e.g., RU) selection.
[0233] Those skilled in the art will understand that information and signals can be represented using any of a variety of different techniques and methods. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the description above can be represented by voltage, current, electromagnetic waves, magnetic fields or particles, light fields or particles, or any combination thereof.
[0234] The article about Figures 1 to 13 The components, functional blocks, and modules described include examples of processors, electronic devices, hardware devices, electronic components, logic circuits, memory, software code, firmware code, etc., or any combination thereof. Furthermore, the features discussed herein can be implemented via dedicated processor circuitry, via executable instructions, or a combination thereof.
[0235] Those skilled in the art will also understand that the various illustrative logic blocks, modules, circuits, and algorithm steps described herein can be implemented as electronic hardware, computer software, or a combination of both. To clearly illustrate this interchangeability between hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally according to their functionality. Whether this functionality is implemented as hardware or software depends on the specific application and the design constraints imposed on the system as a whole. A skilled craftsman may implement the described functionality in different ways for each specific application, but such implementation decisions should not be construed as departing from the scope of this disclosure. A skilled craftsman will also readily recognize that the order or combination of components, methods, or interactions described herein is merely illustrative, and that components, methods, or interactions of various aspects of this disclosure can be combined or performed in ways other than those illustrated and described herein.
[0236] The various illustrative logics, logic blocks, modules, circuits, and algorithmic processes described in conjunction with the embodiments disclosed herein can be implemented as electronic hardware, computer software, or a combination of both. The interchangeability of hardware and software has been generally described in terms of functionality and illustrated in the various illustrative components, blocks, modules, circuits, and processes described above. Whether this functionality is implemented in hardware or software depends on the specific application and the design constraints imposed on the entire system.
[0237] Hardware and data processing devices that implement or perform the various illustrative logic, logic blocks, modules, and circuits described in conjunction with the aspects disclosed herein can be implemented using general-purpose single-chip or multi-chip processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic, discrete hardware components, or any combination designed to perform the functions described herein. A general-purpose processor can be a microprocessor or any conventional processor, controller, microcontroller, or state machine. In some implementations, the processor can also be implemented as a combination of computing devices, such as a DSP and a microprocessor, multiple microprocessors, a combination of one or more microprocessors combined with a DSP core, or any other such configuration. In some implementations, specific processing and methods can be performed by circuitry specific to a given function.
[0238] In one or more aspects, the described functions can be implemented in hardware, digital electronic circuits, computer software, firmware, including the structures disclosed in this specification and their structural equivalents, or any combination thereof. Embodiments of the subject matter described in this specification can also be implemented as one or more computer programs, i.e., modules of one or more computer program instructions encoded on a computer storage medium for execution by a data processing apparatus or for controlling the operation of a data processing device.
[0239] If implemented in software, the functionality can be stored as one or more instructions or code on a computer-readable medium or transmitted as one or more instructions or code. Processing of the methods or algorithms disclosed herein can be implemented in a processor-executable software module that can reside on a computer-readable medium. Computer-readable media include computer storage media and communication media, with communication media including any medium that allows a computer program to be transferred from one place to another. Storage media can be any available medium that is accessible to a computer. By way of example and not limitation, such computer-readable media can include random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), CD-ROM or other optical disc storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store desired program code in the form of instructions or data structures and that is accessible to a computer. Furthermore, any connection can be properly referred to as a computer-readable medium. Disks and optical discs as used herein include optical discs (CDs), laser discs, optical disks, digital versatile discs (DVDs), floppy disks, and Blu-ray discs, where disks typically reproduce data magnetically, while optical discs reproduce data optically via laser. Combinations of the above should also be included within the scope of computer-readable media. Furthermore, the operation of a method or algorithm may reside as one or any combination or set of code and instructions on a machine-readable and computer-readable medium, which may be incorporated into a computer program product.
[0240] Various modifications to the embodiments described in this disclosure will be apparent to those skilled in the art, and the general principles defined herein can be applied to some other embodiments without departing from the spirit or scope of this disclosure. Therefore, the claims are not intended to be limited to the embodiments shown herein, but are to be given the widest scope consistent with this disclosure, the principles disclosed herein, and the novel features thereof.
[0241] In addition, those skilled in the art will readily understand that the terms “upper” and “lower” are sometimes used to describe the figures and to indicate the relative positioning on a properly oriented page corresponding to the orientation of the figures, but may not reflect the correct orientation of any device as it is realized.
[0242] Some features described in this specification within the context of a single implementation may also be implemented in combination within a single implementation. Conversely, various features described in the context of a single implementation may also be implemented separately in multiple implementations or in any applicable sub-combinations. Furthermore, although features may be described above as functioning in certain combinations, or even as features originally claimed, in some cases one or more features from the claimed combination may be separated from that combination, and the claimed combination may point to a sub-combination or a variation of the sub-combination.
[0243] Similarly, although operations are depicted in a specific order in the accompanying drawings, this should not be construed as requiring that such operations be performed in the specific order shown or in a sequential order, or requiring that all shown operations be performed to obtain the desired result. Furthermore, the drawings may schematically depict another example process in the form of a flowchart. However, other operations not depicted may be incorporated into the schematically shown example process. For example, one or more additional operations may be performed before, after, simultaneously with, or between any of the shown operations. In some cases, multitasking and parallel processing may be advantageous. Furthermore, the separation of various system components in the above implementations should not be construed as requiring such separation in all implementations, and it should be understood that the described program components and systems can generally be integrated together in a single software product or packaged into multiple software products. Additionally, other implementations are also within the scope of the following claims. In some cases, the actions described in the claims can be performed in a different order and the desired result can still be achieved.
[0244] As used herein and included in the claims, the term "or," when used in a list of two or more items, means that any one of the listed items may be used alone, or any combination of two or more of the listed items may be used. For example, if a composition is described as containing component A, B, or C, the composition may contain only A; only B; only C; a combination of A and B; a combination of A and C; a combination of B and C; or a combination of A, B, and C. Furthermore, as used herein and included in the claims, "or" as used in a list of items beginning with "at least one" indicates a disjoint list, such that a list such as "at least one of A, B, or C" means A or B or C or AB or AC or BC or ABC (i.e., A and B and C) or any combination thereof. As understood by one of ordinary skill in the art, the term "substantially" is defined as being substantially, but not necessarily entirely, the specified item (and includes the specified item; for example, substantially 90 degrees includes 90 degrees, and substantially parallel includes parallel). In any disclosed implementation, the term “substantially” may be replaced with “within [percentage] of the specified object”, where the percentage includes 0.1, 1, 5, or 10%.
[0245] The foregoing description of this disclosure is provided to enable any person skilled in the art to make or use this disclosure. Various modifications to this disclosure will be apparent to those skilled in the art, and the general principles defined herein can be applied to other variations without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not intended to be limited to the examples and designs described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A method for wireless communication, comprising: The location reference signal (PRS) is received from the network entity by the wireless communication device for configuration transmission. Switch the antenna configuration of the wireless communication device; The wireless communication device uses the switched antenna configuration to receive PRS transmissions from the second wireless communication device based on the PRS configuration transmission. The wireless communication device performs measurement operations on the PRS transmission based on the switched antenna configuration; The wireless communication device determines a PRS measurement report, including an indication of the switched antenna configuration, based on the antenna configuration. as well as The PRS measurement report is sent by the wireless communication device, and the PRS measurement report includes an indication of the switched antenna configuration.
2. The method according to claim 1, further comprising: The wireless communication device receives a message indicating positioning assistance information from the second wireless communication device and based on the transmission of a PRS measurement report including an indication of the switched antenna configuration. The positioning assistance information indicates the location of the wireless communication device, the timing delay associated with the wireless communication device, which antenna panel is more accurate, which antenna panel has a smaller calibration error, or a combination thereof.
3. The method according to claim 1, further comprising: The wireless communication device performs multiple measurement operations on the PRS transmission received from the second wireless communication device based on multiple antenna configurations including the antenna configuration, each antenna configuration corresponding to the antenna configuration of the antenna panel of the wireless communication device; The wireless communication device generates multiple PRS measurement reports, including the PRS measurement report, based on the measurement operation and the multiple antenna configuration; as well as The wireless communication device transmits a plurality of PRS measurement reports, including the PRS measurement report, which indicate the antenna configuration.
4. The method according to claim 1, wherein, The PRS measurement report is sent to the network entity and also includes: The wireless communication device receives a request from the network entity in response to the PRS measurement report, the request indicating the second antenna configuration; The wireless communication device performs a measurement operation on the second PRS signal based on the second antenna configuration; and The wireless communication device sends a second PRS measurement report based on the measurement operation.
5. The method according to claim 1, wherein, The wireless communication device is a UE or a base station.
6. The method according to claim 1, wherein, The PRS measurement report is a UCI transmission, a Side Link Control Information (SCI) transmission, a Downlink Control Information (DCI) transmission, a Medium Access Control (MAC) Control Element (CE) transmission, or a Long Term Evolution (LTE) Positioning Protocol (LPP) message.
7. The method according to claim 1, further comprising: Switch the antenna configuration of the wireless communication device from the switched antenna configuration to the second switched antenna configuration; The wireless communication device performs a measurement operation on the second PRS transmission based on the antenna configuration; The wireless communication device generates a second PRS measurement report, which indicates the second antenna configuration in the second PRS measurement report; as well as The wireless communication device sends a second PRS measurement report.
8. The method according to claim 1, further comprising: The wireless communication device receives a second PRS transmission from the second wireless communication device based on the PRS configuration transmission; The wireless communication device performs a measurement operation on the second PRS transmission based on the switched antenna configuration; The wireless communication device generates a second PRS measurement report; as well as The wireless communication device sends a second PRS measurement report based on the measurement operation, the second PRS measurement report not indicating the antenna configuration.
9. The method according to claim 1, further comprising: The wireless communication device performs a measurement operation on the PRS transmission received from the second wireless communication device by measuring the antenna configuration based on the antenna configuration.
10. The method according to claim 1, further comprising: The wireless communication device performs a measurement operation on the PRS transmission received from the second wireless communication device by performing multiple measurements on multiple signal paths of the antenna configuration based on the antenna configuration, with each measurement targeting a corresponding signal path among the multiple signal paths.
11. An apparatus configured for wireless communication, the apparatus comprising: Memory, which stores code that the processor can read; as well as At least one processor is communicatively coupled to the memory, the at least one memory being configured such that the device: Receive Position Reference Signal (PRS) configuration transmission from network entities; Using the switched antenna configuration, transmit based on the PRS configuration and receive PRS transmissions from the wireless communication device; Based on the switched antenna configuration, a measurement operation is performed on the PRS transmission; Based on the measurement operation, a PRS measurement report is determined, including an indication of the switched antenna configuration; as well as Send a PRS measurement report, which indicates the antenna configuration after the switch.
12. The apparatus according to claim 11, wherein, The antenna configuration includes beamwidth parameters, subarray parameters, array parameters, panel parameters, or combinations thereof.
13. The apparatus according to claim 11, wherein, The PRS measurement report includes antenna type information, antenna placement information, and beamwidth information.
14. The apparatus according to claim 11, wherein, The PRS measurement report includes or corresponds to a UE capability report, a request for location information message, or a provision of location information message.
15. The apparatus according to claim 11, wherein, The PRS measurement report is determined based on the group delay associated with the switched antenna configuration.
16. The apparatus according to claim 11, wherein, The at least one processor is further configured to: The ranging estimate is determined based on the group delay associated with the antenna configuration, wherein the PRS measurement report indicates the ranging estimate.
17. The apparatus according to claim 11, wherein, The at least one processor is further configured to: Receive a first message indicating positioning assistance information, the positioning assistance information being determined based on the switched antenna configuration indicated by the PRS measurement report; The positioning information is determined based on the aforementioned positioning assistance information; as well as The second message is sent based on the location information.
18. A method for wireless communication, comprising: The network entity sends the Position Reference Signal (PRS) configuration transmission to the wireless communication device. as well as When the wireless communication device performs a PRS measurement using a new antenna configuration, the network entity receives a PRS measurement report from the wireless communication device, which indicates the new antenna configuration of the wireless communication device.
19. The method of claim 18, further comprising: The network entity determines the positioning assistance information of the wireless communication device based on the new antenna configuration indicated by the PRS measurement report; as well as The network entity sends a message to the second wireless communication device indicating the positioning assistance information, which indicates the location of the wireless communication device, the timing delay associated with the wireless communication device, which antenna panel is more accurate, which antenna panel has a smaller calibration error, or a combination thereof.
20. The method according to claim 18, wherein, The network entity is a base station, and the wireless communication device is a UE.
21. The method according to claim 18, wherein, The network entity is the Location Management Function (LMF).
22. An apparatus configured for wireless communication, the apparatus comprising: Memory, which stores code that the processor can read; as well as At least one processor is communicatively coupled to the memory, the at least one memory being configured such that the device: Send Position Reference Signal (PRS) configuration transmission to wireless communication devices; as well as When the wireless communication device performs a PRS measurement using a new antenna configuration, a PRS measurement report is received from the wireless communication device, the PRS measurement report indicating the new antenna configuration of the wireless communication device.
23. The apparatus according to claim 22, wherein, The at least one processor is further configured to: Receive multiple second PRS measurement reports; and Multiple hypothesis determinations are performed based on the PRS measurement report and the plurality of second PRS measurement reports to select a second antenna configuration for the wireless communication device based on the results of multiple hypothesis tests determined by the plurality of hypothesis determinations. as well as The second antenna configuration is sent to the wireless communication device.
24. A method for wireless communication, comprising: The location reference signal (PRS) is received from the network entity by the wireless communication device for configuration transmission. The wireless communication device switches its antenna configuration from a first antenna configuration to a second antenna configuration. The wireless communication device uses the second antenna configuration to receive PRS transmissions from the second wireless communication device based on the PRS configuration transmission. The wireless communication device performs a measurement operation on the PRS transmission based on the second antenna configuration; The wireless communication device generates a PRS measurement report based on the measurement operation performed using the second antenna configuration; as well as The PRS measurement report is sent by the wireless communication device, and the PRS measurement report indicates the third antenna configuration but not the second antenna configuration.
25. A method for wireless communication, comprising: The network entity sends the Position Reference Signal (PRS) configuration transmission to the wireless communication device. The network entity receives a PRS measurement report from the wireless communication device indicating a new antenna configuration for the wireless communication device. The network entity determines positioning assistance information for the wireless communication device based on the new antenna configuration; as well as The network entity sends a message to the second wireless communication device indicating location assistance information, which indicates the location of the wireless communication device, the timing delay associated with the wireless communication device, which antenna panel is more accurate, which antenna panel has a smaller calibration error, or a combination thereof.
Citation Information
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Method of positioning for 5g systems
CN108702726A