WO2024031441A1 - Rapport d'évanouissement profond pour positionnement - Google Patents

Rapport d'évanouissement profond pour positionnement Download PDF

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Publication number
WO2024031441A1
WO2024031441A1 PCT/CN2022/111475 CN2022111475W WO2024031441A1 WO 2024031441 A1 WO2024031441 A1 WO 2024031441A1 CN 2022111475 W CN2022111475 W CN 2022111475W WO 2024031441 A1 WO2024031441 A1 WO 2024031441A1
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WIPO (PCT)
Prior art keywords
deep fading
resources
report
resource
measurement
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PCT/CN2022/111475
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English (en)
Inventor
Tao Tao
Ryan Keating
Hyun-Su Cha
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Nokia Shanghai Bell Co., Ltd.
Nokia Solutions And Networks Oy
Nokia Technologies Oy
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Application filed by Nokia Shanghai Bell Co., Ltd., Nokia Solutions And Networks Oy, Nokia Technologies Oy filed Critical Nokia Shanghai Bell Co., Ltd.
Priority to PCT/CN2022/111475 priority Critical patent/WO2024031441A1/fr
Publication of WO2024031441A1 publication Critical patent/WO2024031441A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H04W64/006—Locating users or terminals or network equipment for network management purposes, e.g. mobility management with additional information processing, e.g. for direction or speed determination
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices

Definitions

  • Embodiments of the present disclosure generally relate to the field of telecommunication and, in particular, to devices, methods, apparatuses and computer readable storage media of reporting for use with positioning.
  • Positioning is an important aspect in wireless communications, especially, for New Radio (NR) .
  • Positioning enhancement includes positioning support for Reduced Capability (RedCap) user equipment (UEs) which are provided with reduced bandwidths and reduced complexity.
  • RedCap Reduced Capability
  • UEs user equipment
  • To provide the positioning support for RedCap UEs positioning performance of the RedCap UEs may be evaluated, and positioning enhancements may be identified based on the evaluation to facilitate addressing limitations associated with RedCap UEs.
  • Various positioning approaches based on all radio access technology (RAT) may be considered for the positioning performance evaluation, and the following bandwidth may be considered, including 20MHz (5MHz optional) in frequency range 1 (FR1) and 100 MHz in frequency range 2 (FR2) .
  • RAT radio access technology
  • the positioning performance may be worse in a narrow band system due to a low sampling rate.
  • Frequency hopping (or bandwidth stitching) techniques may be used to overcome such performance degradation. For example, with the frequency hopping, a plurality of narrow-band channels may be stitched to achieve a wideband channel.
  • a first device comprising at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the first device at least to perform: performing a deep fading measurement on a resource of a plurality of resources for measurement of a reference signal for positioning, two resources of the plurality of resources being partially overlapped; and transmitting, to a second device, based on at least the deep fading measurement, a deep fading report associated with the plurality of resources.
  • a second device comprises at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the second device at least to perform: receiving, from a first device, a deep fading report associated with a plurality of resources for measurement of a reference signal for positioning, the deep fading report generated based on at least a deep fading measurement on a resource of the plurality of resources, two resources of the plurality of resources being partially overlapped; and determining, based on at least the deep fading report, a configuration for the plurality of resources.
  • a method implemented at a first device comprises performing a deep fading measurement on a resource of a plurality of resources for measurement of a reference signal for positioning, two resources of the plurality of resources being partially overlapped; and transmitting, to a second device, based on at least the deep fading measurement, a deep fading report associated with the plurality of resources.
  • a method implemented at a second device comprises receiving, from a first device, a deep fading report associated with a plurality of resources for measurement of a reference signal for positioning, the deep fading report generated based on at least a deep fading measurement on a resource of the plurality of resources, two resources of the plurality of resources being partially overlapped; and determining, based on at least the deep fading report, a configuration for the plurality of resources.
  • an apparatus comprising means for performing the method according to the above third or fourth aspect.
  • a non-transitory computer readable medium comprising program instructions for causing an apparatus to perform at least the method according to any one of the above third or fourth aspect.
  • FIG. 1 illustrates an example environment in which example embodiments of the present disclosure may be implemented
  • FIG. 2 illustrates an example process of bandwidth stitching with phase alignment of reference signals (RSs) according to some example embodiments of the present disclosure
  • FIG. 3 illustrates a signaling diagram of the deep fading measurement and report according to some example embodiments of the present disclosure
  • FIG. 4 illustrates an example process for downlink (DL) positioning according to some example embodiments of the present disclosure
  • FIG. 5 illustrates a flowchart of an example method of a deep fading report for positioning in accordance with some example embodiments of the present disclosure
  • FIG. 6 illustrates a flowchart of an example method of a deep fading report for positioning in accordance with some other example embodiments of the present disclosure
  • FIG. 7 illustrates a simplified block diagram of an apparatus that is suitable for implementing example embodiments of the present disclosure.
  • FIG. 8 illustrates a block diagram of an example computer readable medium in accordance with some example embodiments of the present disclosure.
  • references in the present disclosure to “one embodiment, ” “an embodiment, ” “an example embodiment, ” and the like indicate that the embodiment described may include a particular feature, structure, or characteristic, but it is not necessary that every embodiment includes the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to affect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
  • first and second etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and similarly, a second element could be termed a first element, without departing from the scope of example embodiments.
  • the term “and/or” includes any and all combinations of one or more of the listed terms.
  • performing a step “in response to A” does not indicate that the step is performed immediately after “A” occurs and one or more intervening steps may be included.
  • circuitry may refer to one or more or all of the following:
  • any portions of hardware processor (s) with software including digital signal processor (s) , software, and memory (ies) that work together to cause an apparatus, such as a mobile phone or server, to perform various functions
  • software including digital signal processor (s) , software, and memory (ies) that work together to cause an apparatus, such as a mobile phone or server, to perform various functions
  • circuitry also covers an implementation of merely a hardware circuit or processor (or multiple processors) or portion of a hardware circuit or processor and its (or their) accompanying software and/or firmware.
  • circuitry also covers, for example and if applicable to the particular claim element, a baseband integrated circuit or processor integrated circuit for a mobile device or a similar integrated circuit in server, a cellular network device, or other computing or network device.
  • the term “communication network” refers to a network following any suitable communication standards, such as New Radio (NR) , Long Term Evolution (LTE) , LTE-Advanced (LTE-A) , Wideband Code Division Multiple Access (WCDMA) , High-Speed Packet Access (HSPA) , Narrow Band Internet of Things (NB-IoT) and so on.
  • NR New Radio
  • LTE Long Term Evolution
  • LTE-A LTE-Advanced
  • WCDMA Wideband Code Division Multiple Access
  • HSPA High-Speed Packet Access
  • NB-IoT Narrow Band Internet of Things
  • the communications between a terminal device and a network device in the communication network may be performed according to any suitable communication protocols, including, but not limited to, cellular communication protocols such as the first generation (1G) , the second generation (2G) , 2.5G, 2.75G, the third generation (3G) , the fourth generation (4G) , 4.5G, the fifth generation (5G) cellular communication protocols, wireless local network communication protocols such as Institute for Electrical and Electronics Engineers (IEEE) 802.11 and the like, and/or any other protocols either currently known or to be developed in the future.
  • cellular communication protocols such as the first generation (1G) , the second generation (2G) , 2.5G, 2.75G, the third generation (3G) , the fourth generation (4G) , 4.5G, the fifth generation (5G) cellular communication protocols, wireless local network communication protocols such as Institute for Electrical and Electronics Engineers (IEEE) 802.11 and the like, and/or any other protocols either currently known or to be developed in the future.
  • IEEE Institute for Electrical and Electronics Engineers 802.
  • the term “base station” or (BS) refers to a device in a communication network via which a terminal device accesses the network and receives services therefrom.
  • the base station may include a transmission/reception point (TRP) , an access point (AP) , a node B (NodeB or NB) , an evolved NodeB (eNodeB or eNB) , a NR NB (also referred to as a gNB) , a Remote Radio Unit (RRU) , a radio header (RH) , a remote radio head (RRH) , a relay, a low power node such as a femto node, a pico node, an access point, and so forth, depending on the applied terminology and technology.
  • TRP transmission/reception point
  • AP access point
  • NodeB or NB node B
  • eNodeB or eNB evolved NodeB
  • NR NB also referred to as a gNB
  • terminal device refers to any end device that may be capable of wireless communication.
  • a terminal device may also be referred to as a communication device, user equipment (UE) , a Subscriber Station (SS) , a Portable Subscriber Station, a Mobile Station (MS) , or an Access Terminal (AT) .
  • UE user equipment
  • SS Subscriber Station
  • MS Mobile Station
  • AT Access Terminal
  • the terminal device may include, but not limited to, a mobile phone, a cellular phone, a smart phone, voice over IP (VoIP) phones, wireless local loop phones, a tablet, a wearable terminal device, a personal digital assistant (PDA) , portable computers, desktop computer, image capture terminal devices such as digital cameras, gaming terminal devices, music storage and playback appliances, vehicle-mounted wireless terminal devices, wireless endpoints, mobile stations, laptop-embedded equipment (LEE) , laptop-mounted equipment (LME) , USB dongles, smart devices, wireless customer-premises equipment (CPE) , an Internet of Things (IoT) device, a watch or other wearable, a head-mounted display (HMD) , a vehicle, a drone, a medical device and applications (e.g., remote surgery) , an industrial device and applications (e.g., a robot and/or other wireless devices operating in an industrial and/or an automated processing chain contexts) , a consumer electronics device, a device operating on commercial and/
  • the terminal device may be a Reduced Capability (RedCap) device.
  • RedCap Reduced Capability
  • the terms “terminal device” , “communication device” , “terminal” , “user equipment” and “UE” may be used interchangeably.
  • the term “location device” refers to a device that provides positioning-related services to a terminal device.
  • the location management service may include location update and tracking and other positioning-related service of the terminal device.
  • An example of the location device is a location management function (LMF) . It could also be referred to as positioning engine.
  • the location device may be implemented by a device physically separate from or integrated into a base station (e.g., a location device may be at least partially implemented as a network function of a core network, and/or the like) .
  • the term “location device” may also be referred to as a location server.
  • the term “reference signal” refers to a signal transmitted from a base station to a terminal device (DL) or from a terminal device to a base station (UL) for the positioning purpose.
  • a location of the terminal device can be determined using various positioning techniques such as Downlink Time Difference of Arrival (DL-TDOA) , Uplink Time Difference of Arrival (UL-TDOA) , Downlink Angle of Departure (DL-AoD) , Uplink Angle of Arrival (UL-AoA) , Multi-cell Round Trip Time (Multi-RTT) , RF fingerprinting, database matching, and the like.
  • various artificial intelligence based position algorithms can be used based on RS measurements.
  • RedCap UEs may support NR positioning functionality to achieve positioning enhancement.
  • RedCap UEs are designed for lower power consumption and lower complexity. To reduce complexity, RedCap UEs may be provided with a reduced number of receive radio frequency (RF) chains. In some cases, RedCap UEs may be equipped with only a single antenna. Furthermore, the RedCap UEs may be provided with reduced bandwidths. In Rel-17, the maximum bandwidth of the RedCap UEs is 20 MHz for FR1, and it may be 5 MHz in Release 18 (Rel-18) .
  • the positioning performance may be evaluated in various positioning procedures such as all RAT-based positioning approaches for 20MHz (5MHz optional) in FR1 and 100 MHz in FR2.
  • FR1 and FR2 refers to two frequency ranges where FR1 covers 450 MHz to 6 GHz (also called Sub6G) and FR2 covers 20 GHz to 52 GHz (also called mmWave) .
  • the evaluation of the positioning performance may be performed based on the positioning related measurements performed by the RedCap UEs. However, there are no core and performance requirements for the measurements of RedCap UEs and no evaluation to identify how the reduced capabilities of RedCap UEs may impact the eventual positioning accuracy.
  • the positioning performance of RedCap UEs may be degraded due to reduced bandwidths.
  • frequency hopping (FH) and bandwidth (BW) stitching may be used to improve the positioning performance in a narrow band system.
  • FH frequency hopping
  • BW bandwidth
  • a plurality of channel observations may be processed at a receiver, thereby improving the positioning accuracy and performance.
  • the FH and BW stitching techniques may be applied for RedCap UEs with limited transmission bandwidths to perform multiple channel measurements over a larger bandwidth. By the bandwidth stitching, multiple channel observations may be obtained with the frequency hopping measurements and then processed at the receiver side.
  • Suitable FH techniques for transmission of uplink (UL) reference signals such as sounding reference signals (SRSs) and downlink (DL) positioning reference signals (PRSs) may enhance timing-based estimates of DL-TDOA, UL-TDOA, and Multi-RTT positioning approaches for the RedCap UEs.
  • PRS hopping may allow sharing of PRSs across enhance mobile broadband (eMBB) UEs and Redcap UEs.
  • Inter-slot and intra-slot repetitions of a DL PRS resource may be needed the purpose of enabling receive PRS hopping in both FR1 and FR2.
  • a UE may need to have some overlapped subcarriers between each frequency hop in order to perform phase alignment between the hops. Without this phase alignment, the UE may be unable to successfully combine BWs of the hops into a wideband to take advantage of the overall total BWs aggregated from BWs of a plurality of hops.
  • the number of overlapped resources may be smaller such that the UE may still have more non-overlapped BWs of the hop in the frequency domain.
  • Example embodiments of the present disclosure propose an adaptive frequency hopping and bandwidth stitching scheme for both DL and UL positioning in consideration of deep fading.
  • This scheme introduces a deep fading report as assisted information in positioning of a device.
  • the deep fading report may include any type of report that indicates the performance of bandwidth stitching operation and/or the like.
  • the deep fading report may be determined based on a deep fading measurement of a resource of a plurality of resources. These resources may be configured for measurement of a RS (also referred to as RS measurement) , and two resources of the resources may be partially overlapped.
  • RS also referred to as RS measurement
  • the resources may be overlapped in a frequency domain.
  • some subcarriers of the plurality of resources may be the same.
  • the term “subcarrier” refers to a frequency unit such as subband, band, carrier, tone, and/or the like.
  • the resources may comprise one or more DL RS resources, one or more hops in DL RS frequency hopping, one or more chunks or groups of RBs or resource elements (REs) in DL RS stitching, and/or the like.
  • a chunk or a group of RBs or REs may comprise a group of RBs or REs that are located continuously or situated adjacently in the frequency domain.
  • configurations for frequency hopping and BW stitching may be adapted according to radio environments or channel conditions for the positioning. Accordingly, it may be decided by a network whether and/or how RS configurations are adjusted by measuring and reporting deep fading at RBs (overlapped REs or RBs between hops) for RS phase alignment, thereby improving efficiency of frequency hopping and BW stitching and thus improving positioning accuracy and performance.
  • FIG. 1 illustrates an example environment 100 in which example embodiments of the present disclosure may be implemented.
  • the environment 100 which may be a part of a communication network, includes a terminal device 110, a terminal device 112, a serving base station 120 and a neighboring base station 122.
  • the serving base station 120 serves an area (also referred to as a cell) 124 and is serving the terminal devices 110 and 112 in the area 124.
  • the neighboring base station 122 may be near the serving base station 120 and serve an area 126 adjacent to the area 124 of the serving base station 120.
  • the environment 100 further includes a location device 130 that provides positioning-related services to the terminal devices 110 and 112.
  • the location device 130 may track a location of the terminal device 110 or 112, identify a movement state (for example, slow movement or fast movement) of the terminal device 110 or 112, and/or the like.
  • the location device 130 may determine the location of the terminal device 110 or 112 based on the positioning-related measurements from the serving base station 120 and the neighboring base station 122 for the terminal device 110.
  • the environment 100 may comprise any suitable number of terminal devices, base stations, and location devices adapted for implementing example embodiments of the present disclosure.
  • the location device 130 is shown to be physically separate from the base stations 120 and 122 only for the purpose of illustration.
  • the location device 130 may be implemented by a physical or virtual device.
  • the location device 130 may be implemented as a hardware, firmware, and/or algorithm-based software component within any of the network nodes (such as the terminal device 110, the base station 120 or 122, and/or the like) to which the relevant information or measurements are made available.
  • the location device 130 may be physically integrated into or implemented as a part of the base station 120 or 122.
  • the location device 130 may be at least partially implemented as a network function of a core network, and/or the like.
  • the terminal device 110 may communicate with the base stations 120 and 122 or with the location device 130 directly or via the base station 120 or 122.
  • the terminal device 110 may communicate with the terminal device 112 directly or via the base stations 120 and 122.
  • the location device 130 may communicate with either one or both of the base stations 120 and 122 over wireless and/or wired means.
  • Communications in the environment 100 may utilize any suitable wireless communication technology, including, but not limited to: Code Division Multiple Access (CDMA) , Frequency Division Multiple Access (FDMA) , Time Division Multiple Access (TDMA) , Frequency Division Duplex (FDD) , Time Division Duplex (TDD) , Multiple-Input Multiple-Output (MIMO) , Orthogonal Frequency Division Multiple (OFDM) , Discrete Fourier Transform spread OFDM (DFT-s-OFDM) and/or any other technologies currently known or to be developed in the future.
  • CDMA Code Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • MIMO Multiple-Input Multiple-Output
  • OFDM Orthogonal Frequency Division Multiple
  • DFT-s-OFDM Discrete Fourier Transform spread OFDM
  • the terminal device 110 may periodically transmit a reference signal (RS) such as a sounding reference signal (SRS) or a UL positioning reference signal (PRS) .
  • RS reference signal
  • the serving base station 120 and the neighboring base station 122 may detect the RS and report the RS measurements to the location device 130.
  • the terminal device 110 may detect a RS such as a DL PRS from the base station 120 and the base station 122 and report the corresponding measurements to the location device 130.
  • the location device 130 may determine a location of the terminal device 110 based on a positioning technique such as DL-TDOA, UL-TDOA, DL-AoD, UL-AoA, Multi-RTT, and/or the like.
  • frequency hopping (and bandwidth stitching) is used for RS transmission to improve positioning performance of the terminal devices 110 and 112.
  • a plurality of resources may be configured for RS measurement where two resources of the plurality of resources are partially overlapped. With the overlapped part of the resources, phase alignment may be performed for the RS.
  • An example process of RS frequency hopping and bandwidth stitching will be discussed below with reference to FIG. 2.
  • FIG. 2 shows an example process 200 of bandwidth stitching with RS phase alignment according to some example embodiments of the present disclosure.
  • a plurality of resources 205-1, 205-2, 205-3, ..., 205-N is configured for an UL SRS or a DL PRS in frequency hopping where N represents any suitable integer greater than 3.
  • Each of the resources 205-1, 205-2, 205-3, ..., 205-N may comprise a plurality of RBs or REs.
  • the resources 205-1, 205-2, 205-3, ...205-N are individually or collectively referred to as a resource 205.
  • the resources 205-1, 205-2, 205-3, ..., 205-N are partially overlapped in the frequency domain and separate in the time domain.
  • a part 210 (for example, including a plurality of subcarriers) of the resource 205-1 is overlapped with a part 215 of the resource 205-2 in the frequency domain, but separate from the part 215 of the resource 205-2 by a switching delay 220 from the resource 205-1 to the resource 205-2.
  • phase alignment 230 may be performed for the measurement results of RSs. With this phase alignment, the BWs of a plurality of hops may be aggregated into a wideband to improve the positioning performance.
  • the resource 205 is shown in FIG. 2 to comprise RBs or REs of one hop for UL or DL RSs only for the purpose of illustration, without suggesting any limitation.
  • the resource 205 may comprise more than one hop in UL or DL RS frequency hopping, one or more chunks or groups of overlapped RBs or REs in a RS stitching region, or one or more configured RS resources with frequency hopping and bandwidth stitching.
  • the resource 205 may comprise one or more UL or DL beams.
  • the beam information may be indicated by quasi-co-located (QCL) information.
  • the terminal device 110 or 112, or the base station 120 or 122 may perform a deep fading measurement on a resource of the plurality of resources 205-1, 205-2, 205-3, ..., 205-N. Based on the measurement, a deep fading report associated with the plurality of resources 205-1, 205-2, 205-3, ..., 205-N may be transmitted to the location device 130 to adjust configurations of RS frequency hopping. In some example embodiments, the deep fading measurement and report may be implemented between the two terminal devices 110 and 112 for sidelink positioning or ranging.
  • the frequency selective effect due to multi-path fading may be mitigated in RS frequency hopping and bandwidth stitching, thereby improving the positioning accuracy and performance of the terminal device 110 or 112.
  • Example embodiments of the deep fading measurement and report will be discussed below with reference to FIGS. 3 and 4.
  • FIG. 3 shows a signaling diagram 300 of the deep fading measurement and report according to some example embodiments of the present disclosure.
  • the diagram 300 will be discussed with reference to FIGS. 1 and 2.
  • a first device 310 (such as the terminal device 110 in the case of DL positioning or the base station 120 or 122 in the case of UL positioning) performs (315) a deep fading measurement on a resource (for example, the resource 205-1) of the plurality of resources 205-1...205-N.
  • the deep fading measurement may be performed on RBs or REs for phase alignment (also referred to as phase alignment RBs or REs) in the part 210 of the resource 205-1.
  • the deep fading measurement may be performed on a plurality of parts of the resource 205-1 where each part may comprise a portion or chunk of phase alignment RBs. In the case that there is more than one chunk of phase alignment RBs, the deep fading measurement may be performed at each chunk. It may be also possible that the deep fading measurement is performed on any other parts of a resource 205.
  • the deep fading measurement may be implemented in any suitable way.
  • the deep fading measurement may be implemented based on channel estimation on any part of the resource 205.
  • a deep fading metric may be determined. For example, in the example embodiments where a plurality parts of the resource 205-1 is used for the deep fading measurement, the channel estimation may be performed on the individual parts to obtain a plurality of deep fading metrics.
  • the deep fading metric may be determined by quantization.
  • the threshold (s) may be determined by the first device 310 itself, for example, as a capability of the first device 310.
  • the threshold (s) may be configured by the network.
  • a second device 320 (such as the location device 130 in FIG. 1) may configure at least one threshold for the channel estimation and transmit an indication of the at least one threshold to the first device 310, for example, via LTE positioning protocol (LPP) or NR positioning protocol a (NRPPa) .
  • LTE positioning protocol LTE positioning protocol
  • NRPPa NR positioning protocol a
  • the first device 310 transmits (325) , to the second device 320, a deep fading report associated with the plurality of resources 205-1...205-N.
  • the deep fading report may indicate one or more deep fading metrics on one or more parts of the resource 205 (for example, the resource 205-1) .
  • the deep fading report may be generated by the first device 310 for a third device (not shown) , such as the base station 120, from which the RS is received on the resource 205.
  • the diagram 300 may be used for DL positioning.
  • the first device 310 may be implemented by the terminal device 110 as shown in FIG. 1.
  • the first device 310 may determine a deep fading report for each device. For example, in case of the DL positioning where the first device 310 is implemented by the terminal device 110, the first device 310 may determine or generate a deep fading report for the base stations 120 and 122 and other base stations (such as gNB or TRP) if needed.
  • the deep fading report may be determined for a device from which RSs are received with less or lower power.
  • the deep fading measurement and report may be performed for the third device if the received power of the RS from the third device is below a threshold.
  • the received power of the RS may include Reference Signal Receiving Power (RSRP) , Synchronization Signal Reference Signal Received Power (SS-RSRP) , and/or any other suitable measure based on other suitable criterion.
  • RSRP Reference Signal Receiving Power
  • SS-RSRP Synchronization Signal Reference Signal Received Power
  • the threshold for the RS received power may be determined by the first device 310 itself or configured over the network, for example, by the second device 320.
  • the threshold may be dynamically adjusted based on the channel estimation results for a plurality of devices involved in the positioning.
  • the first device 310 may measure the received power of a plurality of RSs from the devices and determine a lower power value or even the minimum power value therefrom e.g., by sorting or otherwise comparing the received power values.
  • the threshold may be dynamically changed to a smaller or lesser one of the sorted or compared power values.
  • the deep fading measurement and further the reporting may be performed if there is a higher risk of deep fading when the RS received power is degraded.
  • the power consumption of the first device 310 may be further reduced, and the positioning efficiency may be further improved.
  • the deep fading report may be generated for each part (for example, per chunk) if the deep fading measurement is performed on different parts of the resource 205, for example, where each part includes a chunk of phase alignment RBs.
  • the resource 205 may be associated with or comprise a beam. Accordingly, the deep fading measurement may be performed for the beam, and the deep fading report may be generated for the beam, or per receiving (Rx) beamforming. Alternatively, or in addition, the report may be generated per transmitting (Tx) beamforming.
  • the deep fading report may be generated by combining the deep fading measurement results across a plurality of measurement occasions.
  • the resource 205 may comprise RS resources on a plurality of hops.
  • the deep fading measurement may be performed for each hop and thus performed many times on the RS resources of the plurality of hops.
  • the deep fading report may be then determined based on the plurality of deep fading measurement results. Any suitable combination of the deep fading measurement results may be used or applied for generating the deep fading report, and the scope of the present disclosure will not be limited in this regard.
  • the deep fading report may be used to indicate the deep fading environment in the positioning.
  • the deep fading report may indicate whether there is deep fading or not, for example, using a one-bit indicator or other related information.
  • the report may indicate a plurality of levels of deep fading using a plurality of bits.
  • the plurality of levels of deep fading may be associated with a plurality of overlapping levels of the plurality of resources.
  • each level of the deep fading may be associated with an overlapping level (for example, overlapped subcarriers of 1 MHz, 2 MHz, 3 MHz, and the like) .
  • the deep fading report may comprise a valid time to indicate when the report is valid.
  • the valid time may be determined based on channel fluctuation on the resource 205.
  • the first device 310 may predict the channel coherency by considering the channel fluctuation depending on time and thus determine a time duration when the deep fading occurs. Thereby, the first device 310 may determine the valid time when the current deep fading report is valid.
  • the deep fading measurement and reporting may be performed by the first device 310 based on any combination of suitable triggering rules.
  • the first device 310 may receive (330) , from the second device 320, an indication of one or more configurations for the deep fading measurement and report.
  • the second device 320 may configure the first device 310 to perform the deep fading measurement.
  • the first device 310 may receive, from the second device 320, an indication of one or more parts of the resource 205 for the deep fading measurement and/or an indication for triggering the deep fading measurement.
  • Such indications may be transmitted via the LPP and NRPPa protocols or any other protocols.
  • the second device 320 may configure the first device 310 to provide the deep fading report.
  • the first device 310 may receive from the second device 320 an indication of a resource for transmitting the deep fading report and/or an indication for triggering the transmission of the deep fading report.
  • the first device 310 may send the deep fading report to the second device 320.
  • the first device 310 may autonomously perform the deep fading measurement and reporting. For example, if the first device 310 senses the channel quality degradation or some other indication of such degradation, the first device 310 may initiate the deep fading measurement and further report the deep fading measurement. The report may be transmitted to the second device 320 as a part of positioning measurement report.
  • the second device 320 determines (340) a configuration for the plurality of resources 205-1...205-N.
  • the configuration may comprise the number of overlapped subcarriers of two resources of the plurality of resources 205-1...205-N, and/or the number of frequency hops of the plurality of resources 205-1...205-N.
  • the network may adjust or assign RS resources based on the deep fading report. For example, the number of phase alignment RBs may be increased, maintained, or decreased. By increasing the number of phase alignment RBs, more hops may be required to achieve the same BW as the first device 310 may receive less non-overlapped RBs in each hop. Accordingly, the number of RS hops may be increased, maintained, or decreased.
  • the second device 320 may transmit an indication of the updated configuration to the first device 310.
  • the first device 310 may be implemented by the base station 120 or 122, and the second device 320 may be implemented by the location device 130.
  • the second device 320 may transmit an indication of the configuration to the first device 310.
  • the first device 310 may use the configuration for further communications and processing.
  • the first device 310 may determine a configuration of RS frequency hopping (and bandwidth switching) for communication with other devices, by considering the configuration indicated by the second device 320.
  • the configuration of the RS resources may be determined by the second device 320 by taking the plurality of base stations into account.
  • the adjustment of the RS transmitting (Tx) resources may be decided based on a plurality of deep fading reports from the plurality of base stations to meet expectations of the plurality of base stations.
  • the RS hopping pattern may be determined to have larger or even largest overlapped RBs.
  • the configuration of the RS resources may be determined by the second device 320 by considering any other suitable factors.
  • a moving speed of the first device 310 may be considered in the adjustment of the configuration, which may be represented by Doppler shift or Doppler spread.
  • the configuration may be determined by considering a capability of the first device 310 to switch between different hops in the RS frequency hopping.
  • the diagram 300 may be applied in both DL and UL positioning.
  • the terminal device 110 (such as a UE) may act as a transmitter of RSs for positioning across multiple carriers.
  • the base station 120 or 122 may act as the first device 310 and use UL measurements to determine a deep fading report.
  • the location device 130 may act as the second device 320 and receive the deep fading report from the base station 120 or 122.
  • the terminal device 110 may act as the first device 310 and use DL measurements, for example, based on Channel State Information Reference Signal (CSI-RS) , to determine the deep fading report.
  • CSI-RS Channel State Information Reference Signal
  • the serving base station 120 may act as the second device 320 and receive the deep fading report from the terminal device 110.
  • the serving base station 120 may use the deep fading report to determine the overlapped RBs and/or REs for the RS transmissions of the terminal device 110 and configure the terminal device 110 appropriately.
  • This RS may be configured over radio resource control (RRC) signaling.
  • RRC radio resource control
  • the procedure may optionally be transparent to the location device 130.
  • the RS Rx resources and Tx resources may be different.
  • transmitted RSs may occupy a full bandwidth
  • the received RSs may be associated with a narrow band for frequency hopping and BW stitching.
  • the second device 320 may adjust the RS Rx resources (for Rx stitching) based on the deep fading report, and then signal the updated configuration to the first device 310.
  • the diagram 300 may also be applied in sidelink positioning.
  • a RS may be received by a UE from one or more other UEs. Accordingly, the deep fading report may be reported from the UE to other UEs. Other UEs may adjust the RS resources for further communications.
  • FIG. 4 shows an example process 400 for DL positioning according to some example embodiments of the present disclosure.
  • the first device 310 is implemented by a UE 405, and the second device 320 is implemented by an LMF 410.
  • the DL RS is transmitted by TRPs or gNBs 415 to the UE 405.
  • the RS resources may comprise a plurality of RBs where some RBs are overlapped and used for RS phase alignment.
  • the LMF 410 may transmit (420) a configuration for the deep fading measurement and report to the UE 405.
  • the UE 405 may perform (425) a deep fading measurement at phase alignment RBs of the plurality of RBs for RS.
  • the UE 405 may prepare (430) a deep fading report and then send (435) the report to the LMF 410 via LPP.
  • the LMF 410 may determine (440) a new configuration of RS Tx resources (also referred to as a RS Tx configuration) based on the deep fading report.
  • the LMF 410 may transmit (445) the updated RS Tx configuration to the UE 405 and also transmit (450) the updated PRS configuration to the TRPs or gNBs 415 for further RS communications between the UE 405 and the TRPs or gNBs 415.
  • FIG. 5 shows a flowchart of an example method 500 of a deep fading report for positioning in accordance with some example embodiments of the present disclosure.
  • the method 500 may be implemented at the first device 310 as shown in FIG. 3.
  • the method 500 will be described from the perspective of the first device 310 with reference to FIGS. 2 and 3.
  • the first device 310 performs a deep fading measurement on a resource of a plurality of resources 205-1...205-N for measurement of a RS for positioning.
  • Two resources of the plurality of resources partially overlaps.
  • a resource of the plurality of resources may comprise a plurality of RBs or REs.
  • the resources may be overlapped in the frequency domain, but not in the time domain.
  • the resources may comprise resources in any suitable granularity, for example, including one or more configured RS resources, one or more hops in RS frequency hopping, and/or one or more chunks of RBs or REs in the RS stitching.
  • the first device 310 transmits, to the second device 320, a deep fading report associated with the plurality of resources.
  • the first device 310 may receive, from the second device 320, an indication of a configuration for the plurality of resources.
  • the configuration may comprise at least one of: the number of overlapped subcarriers of two resources of the plurality of resources, or the number of frequency hops of the plurality of the resources.
  • the first device 310 may be implemented by the base station 120 or 122, and the second device 320 may be implemented by the location device 130.
  • the first device 310 may receive an indication of the configuration for UL RS resources from the second device 320 and accordingly determine its own configuration for the UL RS resources of the terminal device 110 or 112.
  • the first device 310 may be implemented by the terminal device 110 and the second device 320 may be implemented by the base station 120 or 122.
  • the first device 310 may receive an indication of the DL RS configurations from the second device 120 or 122.
  • the first device 310 may receive, from the second device 320, at least one of: an indication of a part of the resource of the plurality of resources, the deep fading measurement being performed on at least the part of the resource of the plurality of resources, an indication for triggering the performing of the deep fading measurement, an indication of a resource for transmitting the deep fading report, or an indication for triggering the transmission of the deep fading report. Based on such indications, the first device 310 may determine when and where to perform the deep fading measurement and reporting.
  • the deep fading measurement may be performed based on channel estimation on the resource of the plurality of resources.
  • the first device 310 may perform channel estimation on the resource of the plurality of resources and then determine a deep fading metric (referred to as a first deep fading metric) based on the channel estimation.
  • the deep fading report may indicate the first deep fading metric.
  • the first device 310 may determine at least an amplitude of a channel on the resource of the plurality of resources to perform the channel estimation. Then, the first device 310 may
  • the first device 310 may receive an indication of the at least one threshold from the second device 320.
  • the at least one threshold may be predetermined or predefined, or determined by the first device 310 itself.
  • the deep fading measurement may be performed on a plurality of parts of a resource of the plurality of resources.
  • the first device 310 may determine the first deep fading metric on a part (referred to as a first part) of the resource of the plurality of resources, and determine a further deep fading metric (referred to as a second deep fading metric) on a further part (referred to as a second part) of the resource.
  • the deep fading report may further indicate the second deep fading metric.
  • the first device 310 may determine a valid time of the deep fading report and include the valid time in the report.
  • the valid time may be determined based on channel fluctuation on the resource of the plurality of resources.
  • the deep fading report may be generated for the third device from which the RS is received in the resource of the plurality of resources.
  • the first device 310 for example, a UE
  • the first device 310 may generate a deep fading report per device (or per gNB or TRP) .
  • the first device 310 may perform the deep fading measurement for a device that has a received power of the RS below a threshold. For example, if the first device 310 determines that a received power of the RS on a resource is below a threshold, the first device 310 may perform the deep fading measurement on the resource.
  • the RS resource may comprise or be associated with a beam.
  • the first device 310 may generate the deep fading report for beam or per beam or per beamforming.
  • the deep fading report may indicate a plurality of levels of deep fading.
  • the plurality of levels of deep fading may be associated with a plurality of overlapping levels of the plurality of resources.
  • the first device 310 may transmit the deep fading report as a part of positioning measurement report.
  • the deep fading report may be transmitted by the first device 310 to the second device 320 via LPP or NRPPa.
  • FIG. 6 shows a flowchart of an example method 600 of a deep fading report for positioning in accordance with some example embodiments of the present disclosure.
  • the method 600 may be implemented at the second device 320 as shown in FIG. 3.
  • the method 600 will be described from the perspective of the second device 320 with reference to FIGS. 2 and 3.
  • the second device 320 receives, from the first device 310, a deep fading report associated with a plurality of resources 205-1...205-N for measurement of a RS for positioning.
  • the deep fading report is generated based on at least a deep fading measurement on a resource of the plurality of resources where two resources of the plurality of resources partially overlaps.
  • a resource of the plurality of resources may comprise a plurality of RBs or REs.
  • the second device 320 determines a configuration for the plurality of resources.
  • the configuration may comprise at least one of the number of overlapped subcarriers of two resources of the plurality of resources, or the number of frequency hops of the plurality of resources.
  • the second device 320 may transmit an indication of the configuration to the first device 310.
  • the second device 320 may transmit the indication of the configuration to the third device from which the RS is transmitted on the resource of the plurality of resources.
  • the first device 310 is implemented by the terminal device 110, and the second device 320 is implemented by the location device 130.
  • the first device 310 may receive DL RSs from the base station 120 or 122.
  • the second device 320 may transmit an indication of the configuration to the base station 120 or 122 as a suggestion to the DL RS configuration. Further, the base station 120 or 122 may make their own decisions on whether to use the indicated configuration or not.
  • the second device 320 may receive a plurality of deep fading reports and determine the RS configuration based on the plurality of deep fading reports.
  • the second device 3320 may receive, from a further device (referred to as a fourth device) , a further deep fading report associated with the plurality of resources, and determine the configuration for the plurality of resources is determined further based on the further deep fading report.
  • the second device 320 may receive a plurality of deep fading reports associated with the RS resources and determine the RS configuration by taking all the deep fading reports into account.
  • the second device 320 may configure when and where to perform the deep fading measurements and/or reporting. For example, the second device 320 may transmit, to the first device 310, at least one of: an indication of a part of the resource of the plurality of resources, the deep fading measurement being performed on at least the part of the resource of the plurality of resources, an indication for triggering performing of the deep fading measurement, an indication of a resource for transmitting the deep fading report, or an indication for triggering a transmission of the deep fading report.
  • the second device 320 may determine the configuration of the plurality of resources further based on at least one of: a moving speed of the first device, or a capability of the first device to switch between the plurality of resources.
  • the deep fading report may comprise a valid time of the deep fading report.
  • the deep fading report may be generated for the third device (for example, per transmitter) , from which the RS is received by the first device 310 from the third device on the resource of the plurality of resources.
  • the resource of the plurality of resources may be associated with a beam.
  • the deep fading report may be generated for the beam, or per beamforming.
  • the deep fading report may indicate a plurality of levels of deep fading.
  • the plurality of levels of deep fading may be associated with a plurality of overlapping levels of the plurality of resources.
  • the second device 320 may receive, from the first device 310, the deep fading report as a part of positioning measurement report.
  • the deep fading report may be received from the first device 310 via LPP or NRPPa.
  • the deep fading report may indicate a first deep fading metric determined based on comparison of an amplitude of a channel on the resource of the plurality of resources with the at least one threshold.
  • the second device 320 may transmit an indication of at least one threshold to the first device 310.
  • an apparatus capable of performing the method 500 may comprise means for performing the respective steps of the method 500.
  • the means may be implemented in any suitable form.
  • the means may be implemented in a circuitry or software module.
  • the apparatus comprises means for performing a deep fading measurement on a resource of a plurality of resources for measurement of a reference signal for positioning, two resources of the plurality of resources being partially overlapped; and means for transmitting, to a second device, based on at least the deep fading measurement, a deep fading report associated with the plurality of resources.
  • a resource of the plurality of resources comprises a plurality of resource blocks or resource elements.
  • the apparatus further comprises: means for in response to transmitting the deep fading report, receiving, from the second device, an indication of a configuration for the plurality of resources.
  • the configuration comprises at least one of: the number of overlapped subcarriers of two resources of the plurality of resources, or the number of frequency hops of the plurality of the resources.
  • the apparatus further comprises: means for receiving, from the second device, at least one of: an indication of a part of the resource of the plurality of resources, the deep fading measurement being performed on at least the part of the resource of the plurality of resources, an indication for triggering the performing of the deep fading measurement, an indication of a resource for transmitting the deep fading report, or an indication for triggering the transmission of the deep fading report.
  • the means for performing the deep fading measurement comprises: means for performing channel estimation on the resource of the plurality of resources; and means for determining a first deep fading metric based on the channel estimation, the deep fading report indicating the first deep fading metric.
  • the means for performing the channel estimation on the resource of the plurality of resources comprises: means for determining at least an amplitude of a channel on the resource of the plurality of resources; and the means for determining the first deep fading metric based on the channel estimation comprises: means for determining the first deep fading metric based on comparison of the amplitude with at least one threshold.
  • the apparatus further comprises: means for receiving an indication of the at least one threshold from the second device.
  • the first deep fading metric may be determined on a first part of the resource of the plurality of resources.
  • the apparatus may further comprise: means for determining a second deep fading metric on a different second part of the resource of the plurality of resources, the deep fading report further indicating the second deep fading metric.
  • the apparatus further comprises: means for determining channel fluctuation on the resource of the plurality of resources; and means for determining a valid time of the deep fading report based on the channel fluctuation, the deep fading report comprising the valid time.
  • the apparatus further comprises: means for receiving, from a third device, the reference signal on the resource of the plurality of resources, the deep fading report being generated for the third device.
  • the means for performing the deep fading measurement comprises: means for determining that a received power of the reference signal is below a threshold; and means for in response to determining that the received power of the reference signal is below the threshold, performing the deep fading measurement.
  • the resource of the plurality of resources is associated with a beam
  • the deep fading report is generated for the beam.
  • the deep fading report indicates a plurality of levels of deep fading.
  • the plurality of levels of deep fading are associated with a plurality of overlapping levels of the plurality of resources.
  • the means for transmitting the deep fading report comprises: means for transmitting, to the second device, the deep fading report as a part of positioning measurement report.
  • the means for transmitting the deep fading report comprises: means for transmitting, to the second device, the deep fading report via long term evolution positioning protocol or new radio positioning protocol a.
  • an apparatus capable of performing the method 600 may comprise means for performing the respective steps of the method 600.
  • the means may be implemented in any suitable form.
  • the means may be implemented in a circuitry or software module.
  • the apparatus comprises: means for receiving, from a first device, a deep fading report associated with a plurality of resources for measurement of a reference signal for positioning, the deep fading report generated based on at least a deep fading measurement on a resource of the plurality of resources, two resources of the plurality of resources being partially overlapped; and means for determining, based on at least the deep fading report, a configuration for the plurality of resources.
  • a resource of the plurality of resources comprises a plurality of resource blocks or resource elements.
  • the apparatus further comprises: means for transmitting, to the first device, an indication of the configuration.
  • the apparatus further comprises: means for transmitting the indication of the configuration to a third device, the reference signal being transmitted by the third device on the resource of the plurality of resources.
  • the configuration comprises at least one of: the number of overlapped subcarriers of two resources of the plurality of resources, or the number of frequency hops of the plurality of resources.
  • the apparatus further comprises: means for receiving, from a fourth device, a further deep fading report associated with the plurality of resources, the configuration for the plurality of resources being determined further based on the further deep fading report.
  • the apparatus further comprises: means for transmitting, to the first device, at least one of: an indication of a part of the resource of the plurality of resources, the deep fading measurement being performed on at least the part of the resource of the plurality of resources, an indication for triggering performing of the deep fading measurement, an indication of a resource for transmitting the deep fading report, or an indication for triggering a transmission of the deep fading report.
  • the configuration of the plurality of resources is determined further based on at least one of: a moving speed of the first device, or a capability of the first device to switch between the plurality of resources.
  • the deep fading report comprises a valid time of the deep fading report.
  • the deep fading report is generated for a third device, the reference signal being received by the first device from the third device on the resource of the plurality of resources.
  • the resource of the plurality of resources is associated with a beam
  • the deep fading report is generated for the beam.
  • the deep fading report indicates a plurality of levels of deep fading.
  • the plurality of levels of deep fading are associated with a plurality of overlapping levels of the plurality of resources.
  • the means for receiving the deep fading report comprises: means for receiving, from the first device, the deep fading report as a part of positioning measurement report.
  • the means for receiving the deep fading report comprises: means for receiving, from the first device, the deep fading report via long term evolution positioning protocol or new radio positioning protocol a.
  • the apparatus further comprises: means for transmitting an indication of at least one threshold to the first device, the deep fading report indicating a first deep fading metric, the first deep fading metric being determined based on comparison of an amplitude of a channel on the resource of the plurality of resources with the at least one threshold.
  • FIG. 7 is a simplified block diagram of a device 700 that is suitable for implementing example embodiments of the present disclosure.
  • the device 700 may be provided to implement the communication device, for example the first device 310 or the second device 320 as shown in FIG. 3.
  • the device 700 includes one or more processors 710, one or more memories 720 coupled to the processor 710, and one or more communication modules 740 coupled to the processor 710.
  • the communication module 740 is for bidirectional communications.
  • the communication module 740 has at least one antenna to facilitate communication.
  • the communication interface may represent any interface that is necessary for communication with other network elements.
  • the processor 710 may be of any type suitable to the local technical network and may include one or more of the following: general purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs) and processors based on multicore processor architecture, as non-limiting examples.
  • the device 700 may have multiple processors, such as an application specific integrated circuit chip that is slaved in time to a clock which synchronizes the main processor.
  • the memory 720 may include one or more non-volatile memories and one or more volatile memories.
  • the non-volatile memories include, but are not limited to, a Read Only Memory (ROM) 724, an electrically programmable read only memory (EPROM) , a flash memory, a hard disk, a compact disc (CD) , a digital video disk (DVD) , and other magnetic storage and/or optical storage.
  • the volatile memories include, but are not limited to, a random access memory (RAM) 722 and other volatile memories that will not last in the power-down duration.
  • a computer program 730 includes computer executable instructions that are executed by the associated processor 710.
  • the program 730 may be stored in the memory, e.g., ROM 724.
  • the processor 710 may perform any suitable actions and processing by loading the program 730 into the RAM 722.
  • the example embodiments of the present disclosure may be implemented by means of the program 730 so that the device 700 may perform any process of the disclosure as discussed with reference to FIGS. 1 to 6.
  • the example embodiments of the present disclosure may also be implemented by hardware or by a combination of software and hardware.
  • the program 730 may be tangibly contained in a computer readable medium which may be included in the device 700 (such as in the memory 720) or other storage devices that are accessible by the device 700.
  • the device 700 may load the program 730 from the computer readable medium to the RAM 722 for execution.
  • the computer readable medium may include any types of tangible non-volatile storage, such as ROM, EPROM, a flash memory, a hard disk, CD, DVD, and the like.
  • FIG. 8 shows an example of the computer readable medium 800 in form of CD or DVD.
  • the computer readable medium 1200 has the program 730 stored thereon.
  • various embodiments of the present disclosure may be implemented in hardware or special purpose circuits, software, logic or any combination thereof. Some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software which may be executed by a controller, microprocessor or other computing device. While various aspects of embodiments of the present disclosure are illustrated and described as block diagrams, flowcharts, or using some other pictorial representations, it is to be understood that the block, apparatus, system, technique or method described herein may be implemented in, as non-limiting examples, hardware, software, firmware, special purpose circuits or logic, general purpose hardware or controller or other computing devices, or some combination thereof.
  • the present disclosure also provides at least one computer program product tangibly stored on a non-transitory computer readable storage medium.
  • the computer program product includes computer-executable instructions, such as those included in program modules, being executed in a device on a target real or virtual processor, to carry out the methods 800 to 1000 as described above with reference to FIGS. 1-10.
  • program modules include routines, programs, libraries, objects, classes, components, data structures, or the like that perform particular tasks or implement particular abstract data types.
  • the functionality of the program modules may be combined or split between program modules as desired in various embodiments.
  • Machine-executable instructions for program modules may be executed within a local or distributed device. In a distributed device, program modules may be located in both local and remote storage media.
  • Program code for carrying out methods of the present disclosure may be written in any combination of one or more programming languages. These program codes may be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the program codes, when executed by the processor or controller, cause the functions/operations specified in the flowcharts and/or block diagrams to be implemented.
  • the program code may execute entirely on a machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.
  • the computer program code or related data may be carried by any suitable carrier to enable the device, apparatus or processor to perform various processes and operations as described above.
  • Examples of the carrier include a signal, computer readable medium, and the like.
  • the computer readable medium may be a computer readable signal medium or a computer readable storage medium.
  • a computer readable medium may include but not limited to an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of the computer readable storage medium would include an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM) , a read-only memory (ROM) , an erasable programmable read-only memory (EPROM or Flash memory) , an optical fiber, a portable compact disc read-only memory (CD-ROM) , an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

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Abstract

Des modes de réalisation de la présente divulgation concernent des dispositifs, des procédés, des appareils et des supports de stockage lisibles par ordinateur d'un rapport d'évanouissement profond pour le positionnement. Un premier dispositif effectue une mesure d'évanouissement profond sur une ressource d'une pluralité de ressources pour la mesure d'un signal de référence (RS) pour le positionnement. Deux ressources de la pluralité de ressources se chevauchent partiellement. Le premier dispositif transmet, à un second dispositif, sur la base au moins de la mesure d'évanouissement profond, un rapport d'évanouissement profond associé à la pluralité de ressources.
PCT/CN2022/111475 2022-08-10 2022-08-10 Rapport d'évanouissement profond pour positionnement WO2024031441A1 (fr)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140098691A1 (en) * 2012-10-01 2014-04-10 Telefonaktiebolaget L M Ericsson (Publ) Methods for performing parallel uplink wireless signal measurements
CN104205696A (zh) * 2012-03-19 2014-12-10 高通股份有限公司 用于协作多点传输方案的信道状态信息参考信号配置和报告
US20220109466A1 (en) * 2020-10-06 2022-04-07 Qualcomm Incorporated Determination of capability of user equipment to measure a downlink positioning reference signal across a plurality of frequency hops
CN114830755A (zh) * 2019-12-16 2022-07-29 高通股份有限公司 无线网络中用于定位的prs拼接的信令细节

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104205696A (zh) * 2012-03-19 2014-12-10 高通股份有限公司 用于协作多点传输方案的信道状态信息参考信号配置和报告
US20140098691A1 (en) * 2012-10-01 2014-04-10 Telefonaktiebolaget L M Ericsson (Publ) Methods for performing parallel uplink wireless signal measurements
CN114830755A (zh) * 2019-12-16 2022-07-29 高通股份有限公司 无线网络中用于定位的prs拼接的信令细节
US20220109466A1 (en) * 2020-10-06 2022-04-07 Qualcomm Incorporated Determination of capability of user equipment to measure a downlink positioning reference signal across a plurality of frequency hops

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