Depth fading reporting for positioning

Abstract

The embodiment of the invention relates to deep fading reporting equipment, method and device for positioning and a computer readable storage medium. A first device performs a deep fading measurement on a resource of a plurality of resources for measuring a reference signal (RS) for positioning. Two resources of the plurality of resources partially overlap. The first device sends a deep fading report associated with the plurality of resources to the second device based at least on the deep fading measurements.

Description

Technical Field

[0001] Embodiments of the present disclosure relate generally to the field of telecommunications, and more particularly to devices, methods, apparatuses, and computer-readable storage media for reporting used with positioning. Background Art

[0002] Positioning is an important aspect in wireless communications, especially for New Radio (NR). Positioning enhancements include positioning support for Reduced Capability (RedCap) User Equipment (UE), which is provided with reduced bandwidth and reduced complexity. In order to provide positioning support for RedCap UE, the positioning performance of the RedCap UE can be evaluated, and positioning enhancements can be identified based on the evaluation to facilitate addressing the limitations associated with the RedCap UE. Various positioning methods based on all radio access technologies (RATs) can be considered for positioning performance evaluation, and the following bandwidths can be considered, including 20 MHz (5 MHz optional) in frequency range 1 (FR1) and 100 MHz in frequency range 2 (FR2).

[0003] Due to the low sampling rate, the positioning performance may be worse in narrowband systems. Frequency hopping (or bandwidth splicing) technology can be used to overcome such performance degradation. For example, using frequency hopping, multiple narrowband channels can be spliced ​​to achieve a wideband channel. Summary of the invention

[0004] In a first aspect, a first device is provided. The first device includes: at least one processor; and at least one memory storing instructions, which, when executed by the at least one processor, cause the first device to at least perform: performing deep fade measurement on a resource among multiple resources for measuring a reference signal for positioning, two resources among the multiple resources partially overlapping; and sending a deep fade report associated with the multiple resources to a second device based at least on the deep fade measurement.

[0005] In a second aspect, a second device is provided. The second device includes: at least one processor; and at least one memory storing instructions, which when executed by the at least one processor, cause the second device to at least perform: receiving from a first device a deep fade report associated with a plurality of resources for measuring a reference signal for positioning, the deep fade report being generated based at least on a deep fade measurement on a resource in the plurality of resources, two of the plurality of resources partially overlapping; and determining a configuration for the plurality of resources based at least on the deep fade report.

[0006] In a third aspect, a method implemented at a first device is provided. The method includes: performing deep fade measurements on a resource of a plurality of resources for measuring a reference signal for positioning, two of the plurality of resources partially overlapping; and sending a deep fade report associated with the plurality of resources to a second device based at least on the deep fade measurements.

[0007] In a fourth aspect, a method implemented at a second device is provided. The method includes receiving from a first device a deep fade report associated with a plurality of resources for measuring a reference signal for positioning, the deep fade report being generated based at least on a deep fade measurement on a resource in the plurality of resources, two of the plurality of resources partially overlapping; and determining a configuration for the plurality of resources based at least on the deep fade report.

[0008] In a fifth aspect, a device is provided, the device comprising components for executing the method according to the third or fourth aspect above.

[0009] In a sixth aspect, a non-transitory computer-readable medium is provided, comprising program instructions for causing an apparatus to at least execute the method of any one of the third aspect or the fourth aspect.

[0010] It should be understood that the invention summary is not intended to identify the key or essential features of the embodiments of the present disclosure, nor is it intended to be used to limit the scope of the present disclosure. Other features of the present disclosure will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Some example embodiments will now be described with reference to the accompanying drawings, in which:

[0012] Figure 1 shows an example environment in which example embodiments of the present disclosure may be implemented;

[0013] Figure 2 An example process of bandwidth stitching with phase alignment of a reference signal (RS) according to some example embodiments of the present disclosure is shown;

[0014] Figure 3 A signaling diagram illustrating deep fade measurement and reporting according to some example embodiments of the present disclosure;

[0015] Figure 4 An example process for downlink (DL) positioning according to some example embodiments of the present disclosure is shown;

[0016] Figure 5 A flowchart illustrating an example method for deep fade reporting for positioning according to some example embodiments of the present disclosure;

[0017] Figure 6A flowchart illustrating an example method for deep fade reporting for positioning according to some other example embodiments of the present disclosure;

[0018] Figure 7 shows a simplified block diagram of an apparatus suitable for implementing an example embodiment of the present disclosure; and

[0019] Figure 8 A block diagram of an example computer-readable medium is shown according to some example embodiments of the present disclosure.

[0020] Throughout the drawings, the same or similar reference numerals refer to the same or similar elements. DETAILED DESCRIPTION

[0021] The principles of the present disclosure will now be described with reference to some example embodiments. It should be understood that these embodiments are described only for illustrative purposes, and help those skilled in the art to understand and implement the present disclosure, without implying any limitation on the scope of the present disclosure. The disclosure described herein can be implemented in various ways different from the ways described below.

[0022] In the following description and claims, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.

[0023] References in this disclosure to "one embodiment," "an embodiment," "an example embodiment," etc. indicate that the described embodiment may include a particular feature, structure, or characteristic, but not necessarily every embodiment includes the particular feature, structure, or characteristic. Moreover, such phrases do not necessarily refer to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in conjunction with an embodiment, it is considered that it is within the knowledge of those skilled in the art to affect such feature, structure, or characteristic in conjunction with other embodiments, whether or not explicitly described.

[0024] It should be understood that although the terms "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 element. For example, without departing from the scope of the exemplary embodiments, the first element may be referred to as the second element, and similarly, the second element may be referred to as the first element. As used herein, the term "and / or" includes any and all combinations of one or more of the listed terms.

[0025] The terms used herein are only used for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments. As used herein, the singular forms "a", "an", and "the" are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms "comprise", "including", "having", "having", "including" and / or "comprising" when used herein specify the presence of the described features, elements and / or components, etc., but do not exclude the presence or addition of one or more other features, elements, components and / or combinations thereof.

[0026] As used herein, “at least one of: ” and “at least one of ” and similar expressions mean at least any one of the elements, or at least any two or more of the elements, or at least all of the elements, where the list of two or more elements is connected by “and” or “or”.

[0027] As used herein, unless explicitly stated, performing a step “in response to A” does not indicate that the step is performed immediately after “A” occurs, but may include one or more intermediate steps.

[0028] The terms used herein are only used for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments. As used herein, the singular forms "a", "an", and "the" are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms "comprise", "including", "having", "having", "including" and / or "comprising" when used herein specify the presence of the described features, elements and / or components, etc., but do not exclude the presence or addition of one or more other features, elements, components and / or combinations thereof.

[0029] As used in this application, the term "circuitry" may refer to one or more or all of the following: (a) hardware circuit implementation only (such as implementation in analog and / or digital circuits only) and (b) a combination of hardware circuitry and software, such as (where applicable): (i) a combination of analog circuit(s) and / or digital hardware circuit(s) and software / firmware, and (ii) any portion of hardware processor(s) with software (including digital signal processor(s), software and memory(s) that work together to enable a device (such as a mobile phone or server) to perform various functions), and (c) hardware circuit(s) and / or processor(s), such as microprocessor(s) or portion(s) of microprocessor(s), which requires software (e.g., firmware) for operation, but the software may not be present when not required for operation.

[0030] This definition of circuitry applies to all uses of the term in this application, including in any claims. As another example, as used in this application, the term circuitry also covers an implementation of only a hardware circuit or processor (or multiple processors) or a portion of a hardware circuit or processor and its (or their) accompanying software and / or firmware. For example, if applicable to the particular claim element, the term circuitry also covers a baseband integrated circuit or processor integrated circuit for a mobile device, or a similar integrated circuit in a server, cellular network device, or other computing or network device.

[0031] As used herein, the term "communication network" refers to a network that complies with any suitable communication standard, such as New Radio (NR), Long Term Evolution (LTE), Advanced LTE (LTE-A), Wideband Code Division Multiple Access (WCDMA), High Speed ​​Packet Access (HSPA), Narrowband Internet of Things (NB-IoT), etc. In addition, the communication between the terminal device and the network device in the communication network can be performed according to any suitable generation of communication protocol, including but not limited to cellular communication protocols, such as first generation (1G), second generation (2G), 2.5G, 2.75G, third generation (3G), fourth generation (4G), 4.5G, fifth generation (5G) cellular communication protocols, wireless local area network communication protocols, such as Institute of Electrical and Electronics Engineers (IEEE) 802.11, etc., and / or any other protocol currently known or developed in the future. The embodiments of the present disclosure can be applied to various communication systems. In view of the rapid development of communication, there will certainly be communication technologies and systems of future types that can embody the present disclosure. It can be understood that the scope of the present disclosure should not be limited to the aforementioned system.

[0032] As used herein, 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. Depending on the terminology and technology applied, a base station may include a transmit / receive point (TRP), an access point (AP), a Node B (NodeB or NB), an evolved NodeB (eNodeB or eNB), a NR NB (also known as a gNB), a remote radio unit (RRU), a radio head (RH), a remote radio head (RRH), a repeater, a low power node (such as a femto node, a pico node, an access point, etc.).

[0033] The term "terminal device" refers to any terminal device capable of wireless communication. As an example and not limitation, the terminal device may also be referred to as a communication device, a user equipment (UE), a subscriber station (SS), a portable subscriber station, a mobile station (MS) or an access terminal (AT). The terminal device may include, but is not limited to, a mobile phone, a cellular phone, a smart phone, a voice over IP (VoIP) phone, a wireless local loop phone, a tablet computer, a wearable terminal device, a personal digital assistant (PDA), a portable computer, a desktop computer, an image capture terminal device such as a digital camera, a game terminal device, a music storage and playback facility, a vehicle-mounted wireless terminal device, a wireless endpoint, a mobile station, a laptop embedded device (LEE), a laptop mounted device (LME), a USB dongle, a smart device, a wireless customer premises equipment (CPE), an Internet of Things (IoT) device, a watch or other wearable device, a head mounted display (HMD), a vehicle, a drone, medical equipment and applications (e.g., remote surgery), industrial equipment and applications (e.g., robots and / or other wireless devices operating in industrial and / or automated processing chain environments), consumer electronic devices, equipment operating on commercial and / or industrial wireless networks, etc. In some example embodiments, the terminal device may be a reduced capability (RedCap) device.In the following description, the terms "terminal device", "communication device", "terminal", "user equipment" and "UE" may be used interchangeably.

[0034] As used herein, the term "location device" refers to a device that provides positioning-related services to a terminal device. Location management services may include location updates and tracking and other positioning-related services for terminal devices. An example of a location device is a location management function (LMF). It may also be referred to as a positioning engine. The location device may be implemented by a device that is physically separated from a base station or integrated into a base station (e.g., the location device may be at least partially implemented as a network function of a core network, and / or the like). In the following description, the term "location device" may also be referred to as a location server.

[0035] As used herein, the term "reference signal" refers to a signal sent from a base station to a terminal device (DL) or from a terminal device to a base station (UL) for positioning purposes. Based on the measurement of the reference signal (also referred to as RS measurement), the position 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 fingerprint identification, database matching, etc. In addition, various artificial intelligence-based positioning algorithms can be used based on RS measurements.

[0036] NR positioning was introduced in Release 16 (Rel-16) with a positioning accuracy of approximately less than 3m, and will be further enhanced in Release 17 (Rel-17) with a target accuracy of approximately less than 30cm. RedCap UE can support NR positioning functionality to achieve positioning enhancement. RedCap UE is designed for lower power consumption and lower complexity. To reduce complexity, RedCap UE may be provided with a reduced number of receive radio frequency (RF) chains. In some cases, RedCap UE may be equipped with only a single antenna. In addition, RedCap UE may be provided with a reduced bandwidth. In Rel-17, the maximum bandwidth of RedCap UE for FR1 is 20MHz, and in Release 18 (Rel-18) it may be 5MHz.

[0037] For positioning enhancement for RedCap UEs, positioning performance may be evaluated in various positioning processes, such as for all RAT-based positioning methods for 20 MHz in FR1 (5 MHz optional) and 100 MHz in FR2. FR1 and FR2 refer to two frequency ranges, where FR1 covers 450 MHz to 6 GHz (also known as Sub6G) and FR2 covers 20 GHz to 52 GHz (also known as mmWave). The evaluation of positioning performance may be performed based on positioning-related measurements performed by RedCap UEs. However, there are no core and performance requirements for measurements for RedCap UEs, and no evaluation is performed to identify how the reduced capabilities of RedCap UEs may affect the final positioning accuracy.

[0038] Due to the reduced bandwidth, the positioning performance of RedCap UE may be degraded. As mentioned above, frequency hopping (FH) and bandwidth (BW) splicing can be used to improve positioning performance in narrowband systems. With FH, multiple channel observations can be processed at the receiver, thereby improving positioning accuracy and performance.

[0039] FH and BW splicing techniques can be applied to RedCap UEs with limited transmission bandwidth to perform multi-channel measurements over a larger bandwidth. With bandwidth splicing, multi-channel observations can be acquired using frequency hopping measurements and then processed at the receiver side. Suitable FH techniques for transmitting uplink (UL) reference signals (such as sounding reference signals (SRS)) and downlink (DL) positioning reference signals (PRS) can enhance timing-based estimates for DL-TDOA, UL-TDOA, and Multi-RTT positioning methods for RedCap UEs. In addition, PRS hopping can allow PRS to be shared across enhanced mobile broadband (eMBB) UEs and Redcap UEs.

[0040] Inter-slot repetition and intra-slot repetition of DL PRS resources may be required to enable the purpose of receive PRS hopping in both FR1 and FR2. In FH and BW splicing for DL ​​PRS, the UE may need to have some overlapping subcarriers between each frequency hop to perform phase alignment between hops. Without such phase alignment, the UE may not be able to successfully combine the BW of each hop into a wideband to utilize the total BW aggregated from the BW of multiple hops. The number of overlapping resources can be smaller so that the UE can still have more non-overlapping BW for hops in the frequency domain.

[0041] In a radio communication environment, there is a multipath phenomenon, which may cause a radio signal to reach a receiving antenna through two or more paths. Multipath propagation may lead to frequency selection effects. If deep fading occurs at overlapping resources (e.g., subcarriers), the phase alignment operation may become invalid, which may have an impact on bandwidth splicing performance.

[0042] The example embodiments of the present disclosure propose an adaptive frequency hopping and bandwidth splicing scheme for both DL and UL positioning taking into account deep fading. The scheme introduces deep fading reports as auxiliary information in the positioning of the device. The deep fading report may include any type of report indicating the performance of the bandwidth splicing operation and / or the like. In some examples, the deep fading report may be determined based on deep fading measurements of resources in multiple resources. These resources may be configured for RS measurements (also referred to as RS measurements), and two of the resources may partially overlap.

[0043] In some example embodiments, resources may overlap in the frequency domain. For example, some subcarriers in multiple resources may be the same. In the context of the present disclosure, the term "subcarrier" refers to a frequency unit, such as a subband, a frequency band, a carrier, a tone, and / or the like. As an example, in the case of DL positioning, a resource may include one or more DL RS resources, one or more hops in DL RS frequency hopping, one or more blocks or groups of RBs or resource elements (REs) in DL RS splicing, and / or the like. A block or group of RBs or REs may include a group of RBs or REs that are continuously positioned or adjacently positioned in the frequency domain.

[0044] Based on the deep fade report, the configuration for frequency hopping and BW splicing can be adapted according to the radio environment or channel conditions used for positioning. Therefore, by measuring and reporting the deep fade at the RB (overlapping REs or RBs between hops) for RS phase alignment, the network can decide whether and / or how to adjust the RS configuration to improve the efficiency of frequency hopping and BW splicing, and thus improve positioning accuracy and performance.

[0045] Figure 1An example environment 100 is shown in which example embodiments of the present disclosure may be implemented.

[0046] Environment 100 may be part of a communication network, including terminal device 110, terminal device 112, serving base station 120, and neighboring base station 122. Serving base station 120 serves an area (also referred to as a cell) 124 and is serving terminal devices 110 and terminal devices 112 in area 124. Neighboring base station 122 may be close to serving base station 120 and serves area 126, which is adjacent to area 124 of serving base station 120.

[0047] Environment 100 also includes a location device 130 that provides positioning-related services to terminal device 110 and terminal device 112. For example, location device 130 may track the location of terminal device 110 or terminal device 112, identify the movement state of terminal device 110 or terminal device 112 (e.g., slow movement or fast movement), etc. In some example embodiments, location device 130 may determine the location of terminal device 110 or 112 based on positioning-related measurements for terminal device 110 from serving base station 120 and neighboring base station 122.

[0048] It should be understood that Figure 1 The number of terminal devices, base stations, and location devices shown in FIG. 1 is for illustration purposes only and does not imply any limitation. Environment 100 may include any suitable number of terminal devices, base stations, and location devices suitable for implementing the example embodiments of the present disclosure.

[0049] It should also be understood that location device 130 is shown as being physically separate from base station 120 and base station 122 for purposes of illustration only. Location device 130 may be implemented by a physical device or a virtual device. Location device 130 may be implemented as a hardware, firmware, and / or algorithm-based software component within any network node (such as terminal device 110, base station 120 or base station 122, and / or the like) where relevant information or measurements are available. In some example embodiments, location device 130 may be physically integrated into or implemented as part of base station 120 or base station 122. In some examples, location device 130 may be implemented at least in part as a network function of a core network and / or the like.

[0050] Terminal device 110 may communicate with base station 120 and base station 122, or with location device 130 directly or via base station 120 or base station 122. Terminal device 110 may communicate with terminal device 112 directly or via base station 120 and base station 122. Location device 130 may communicate with one or both of base station 120 and base station 122 wirelessly and / or by wire. Communications in environment 100 may use 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 access (OFDM), discrete Fourier transform spread OFDM (DFT-s-OFDM), and / or any other technology currently known or developed in the future.

[0051] In the positioning of the terminal device 110, 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). 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. In addition, the terminal device 110 may detect RSs such as DLPRS from the base station 120 and the base station 122, and report corresponding measurements to the location device 130. Based on these measurements, the location device 130 may determine the location of the terminal device 110 based on positioning technologies such as DL-TDOA, UL-TDOA, DL-AoD, UL-AoA, Multi-RTT and / or the like.

[0052] In environment 100, frequency hopping (and bandwidth splicing) is used for RS transmission to improve the positioning performance of terminal device 110 and terminal device 112. In RS frequency hopping and BW splicing, multiple resources can be configured for RS measurement, where two of the multiple resources partially overlap. Using the overlapping portion of the resources, phase alignment can be performed for the RS. An example process of RS frequency hopping and bandwidth splicing will be described below with reference to Figure 2 was discussed.

[0053] Figure 2 An example process 200 of bandwidth splicing with RS phase alignment is shown according to some example embodiments of the present disclosure.

[0054] In process 200, a plurality of resources 205-1, 205-2, 205-3, ..., 205-N are configured for UL SRS or DL ​​PRS in frequency hopping, where N represents any suitable integer greater than 3. Each of resources 205-1, 205-2, 205-3, ..., 205-N may include a plurality of RBs or REs. For the purpose of discussion, resources 205-1, 205-2, 205-3, ..., 205-N are individually or collectively referred to as resources 205.

[0055] Resources 205-1, 205-2, 205-3, ..., 205-N partially overlap in the frequency domain and are separated in the time domain. Figure 2 As shown, a portion 210 of resource 205-1 (e.g., including multiple subcarriers) overlaps with a portion 215 of resource 205-2 in the frequency domain, but due to a switching delay 220 from resource 205-1 to resource 205-2, the portion 210 is separated from the portion 215 of resource 205-2. During the overlapping RBs or REs of resources 205-1 and 205-2, phase alignment 230 can be performed for the measurement results of the RS. With this phase alignment, the BW of multiple hops can be aggregated into a wideband to improve positioning performance.

[0056] It should be understood that Figure 2 The resources 205 shown in the figure include RBs or REs for one hop of UL or DL ​​RS, which is for illustration purposes only and does not imply any limitation. In some example embodiments, the resources 205 may include more than one hop in UL or DL ​​RS frequency modulation, one or more blocks or groups of overlapping RBs or REs in the RS splicing region, or RS resources with one or more configurations of frequency hopping and bandwidth splicing. In some example embodiments, the resources 205 may include one or more UL or DL ​​beams. The beam information may be indicated by quasi-co-located (QCL) information.

[0057] In some example embodiments, terminal device 110 or terminal device 112 or base station 120 or base station 122 may perform deep fade measurements on resources in multiple resources 205-1, 205-2, 205-3, ..., 205-N. Based on the measurements, deep fade reports associated with multiple resources 205-1, 205-2, 205-3, 205-N may be sent to location device 130 to adjust the configuration of RS frequency hopping. In some example embodiments, deep fade measurements and reports may be implemented between two terminal devices 110 and 112 for sidelink positioning or ranging.

[0058] In this way, the frequency selection effect caused by multipath fading can be alleviated in RS frequency hopping and bandwidth splicing, thereby improving the positioning accuracy and performance of terminal device 110 or terminal device 112.

[0059] Example embodiments of deep fade measurement and reporting are described below with reference to Figure 3 and Figure 4 was discussed.

[0060] Figure 3 A signaling diagram 300 for deep fade measurement and reporting according to some example embodiments of the present disclosure is shown. For discussion purposes, reference will be made to Figure 1 and Figure 2 Discuss diagram 300.

[0061] In diagram 300, a first device 310 (such as a terminal device 110 in the case of DL positioning or a base station 120 or base station 122 in the case of UL positioning) performs (315) deep fade measurements on a resource (e.g., resource 205-1) in a plurality of resources 205-1, ..., 205-N. As an example, the deep fade measurements may be performed on RBs or REs for phase alignment (also referred to as phase-aligned RBs or REs) in portion 210 of resource 205-1. As another example, the deep fade measurements may be performed on multiple portions of resource 205-1, each of which may include a portion or block of phase-aligned RBs. In the presence of more than one block of phase-aligned RBs, the deep fade measurements may be performed at each block. The deep fade measurements may also be performed on any other portion of resource 205.

[0062] The deep fade measurement may be implemented in any suitable manner. In some example embodiments, the deep fade measurement may be implemented based on channel estimation on any portion of the resource 205. Based on the channel estimation, a deep fade metric may be determined. For example, in an example embodiment where multiple portions of the resource 205-1 are used for deep fade measurement, channel estimation may be performed on a single portion to obtain multiple deep fade metrics.

[0063] The deep fade metric may be determined by quantization. For example, in channel estimation, the amplitude of at least the channel on resource 205 may be determined and compared to one or more thresholds. In some example embodiments, the threshold(s) may be determined by the first device 310 itself, for example, as a capability of the first device 310. In some other example embodiments, the threshold(s) may be configured by the network. For example, the second device 320 (such as Figure 1 The location device 130 in the embodiment may configure at least one threshold for channel estimation and send an indication of the at least one threshold to the first device 310, for example via the LTE Positioning Protocol (LPP) or the NR Positioning Protocol a (NRPPa).

[0064] like Figure 3As shown, based on the deep fade measurements, the first device 310 sends 325 deep fade reports associated with the plurality of resources 205-1 ... 205-N to the second device 320. The deep fade reports may indicate one or more deep fade metrics on one or more portions of the resources 205 (eg, resource 205-1).

[0065] In some example embodiments, the deep fade 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. In this case, the first device 310 may be generated by, for example, the base station 120. Figure 1 The terminal device 110 shown is implemented. In the case where multiple other devices are involved in the positioning session, the first device 310 can determine a deep fade report for each device. For example, in the case of DL positioning of the first device 310 implemented by the terminal device 110, if necessary, the first device 310 can determine or generate a deep fade report for the base station 120 and the base station 122 and other base stations (such as gNB or TRP).

[0066] In some example embodiments, a deep fade report may be determined for a device from which an RS is received with less or lower power. For example, if the received power of the RS from a third device is below a threshold, a deep fade measurement and reporting may be performed for the third device. The received power of the RS may include a reference signal received power (RSRP), a synchronization signal reference signal received power (SS-RSRP), and / or any other suitable measurement based on other suitable criteria.

[0067] The threshold for RS received power may be determined by the first device 310 itself, or configured on the network, such as by the second device 320. In some example embodiments, the threshold may be dynamically adjusted based on the channel estimation results of multiple devices involved in positioning. For example, the first device 310 may measure multiple RS received powers from these devices and determine a lower power value or even a minimum power value therefrom, such as by sorting or otherwise comparing the received power values. In this case, the threshold may be dynamically changed to a smaller or lesser one of the sorted or compared power values.

[0068] In this way, when RS reception power is degraded, if there is a high risk of deep fading, deep fading measurement and further reporting can be performed. Thus, the power consumption of the first device 310 can be further reduced, and the positioning efficiency can be further improved.

[0069] In some example embodiments, if deep fade measurements are performed on different portions of resource 205, e.g., where each portion includes a block of phase-aligned RBs, a deep fade report may be generated for each portion (e.g., each block). Alternatively or additionally, resource 205 may be associated with or include a beam. Thus, deep fade measurements may be performed for a beam, and a deep fade report may be generated for a beam or per receive (Rx) beamforming. Alternatively or additionally, a report may be generated for each transmit (Tx) beamforming.

[0070] In some example embodiments, the deep fade report may be generated by combining deep fade measurements across multiple measurement opportunities. For example, the resources 205 may include RS resources over multiple hops. The deep fade measurement may be performed for each hop and thus performed multiple times over the RS resources of multiple hops. The deep fade report may then be determined based on the multiple deep fade measurements. Any suitable combination of deep fade measurements may be used or applied to generate a deep fade report, and the scope of the present disclosure is not limited thereto.

[0071] A deep fade report may be used to indicate a deep fade environment in positioning. In some example embodiments, a deep fade report may indicate whether a deep fade exists, for example using a one-bit indicator or other related information. As another example, the report may use multiple bits to indicate multiple deep fade levels. Multiple deep fade levels may be associated with multiple overlapping levels of multiple resources. For example, each level of deep fade may be associated with an overlapping level (e.g., overlapping subcarriers of 1 MHz, 2 MHz, 3 MHz, and / or the like).

[0072] In some example embodiments, the deep fade report may include a validity time indicating when the report is valid. The validity time may be determined based on channel fluctuations on the resource 205. For example, the first device 310 may predict channel coherence by taking into account time-dependent channel fluctuations and thus determine the duration of the deep fade occurrence. Thus, the first device 310 may determine the validity time for which the current deep fade report is valid.

[0073] The deep fade measurement and reporting may be performed by the first device 310 based on any combination of suitable triggering rules. In some example embodiments, Figure 3As shown, the first device 310 may receive (330) an indication of one or more configurations for deep fade measurement and reporting from the second device 320. For example, the second device 320 may configure the first device 310 to perform deep fade measurement. Thus, the first device 310 may receive an indication of one or more portions of the resources 205 for deep fade measurement and / or an indication for triggering deep fade measurement from the second device 320. Such indications may be sent via the LPP and NRPPa protocols or any other protocol.

[0074] Alternatively or additionally, the second device 320 may configure the first device 310 to provide a deep fade report. For example, the first device 310 may receive an indication of resources for sending a deep fade report and / or an indication for triggering transmission of a deep fade report from the second device 320. In response, the first device 310 may send a deep fade report to the second device 320.

[0075] In some example embodiments, the first device 310 may autonomously perform deep fade measurements and reports. For example, if the first device 310 senses channel quality degradation or some other indication of such degradation, the first device 310 may initiate a deep fade measurement and further report the deep fade measurement. The report may be sent to the second device 320 as part of a positioning measurement report.

[0076] After the second device 320 receives (335) the deep fade report from the first device 310, the second device 320 determines (340) a configuration for the plurality of resources 205-1 ... 205-N. The configuration may include a number of overlapping subcarriers of two resources in the plurality of resources 205-1 ... 205-N and / or a number of frequency hopping of the plurality of resources 205-1 ... 205-N.

[0077] In this way, the network can adjust or assign RS resources based on the deep fading report. For example, the number of phase-aligned RBs can be increased, maintained, or reduced. By increasing the number of phase-aligned RBs, more hops may be required to achieve the same BW because the first device 310 can receive fewer non-overlapping RBs in each hop. Therefore, the number of RS hops can be increased, maintained, or reduced.

[0078] After the second device 320 adjusts the configuration of the RS resources, the second device 320 may send an indication of the updated configuration to the first device 310. For example, in the case of UL positioning, the first device 310 may be implemented by the base station 120 or the base station 122, and the second device 320 may be implemented by the location device 130. In this example, the second device 320 may send an indication of the configuration to the first device 310. The first device 310 may use the configuration for further communication and processing. Alternatively or additionally, the first device 310 may determine the configuration of RS frequency hopping (and bandwidth switching) for communication with other devices by considering the configuration indicated by the second device 320.

[0079] In some example embodiments, if multiple base stations such as gNBs or TRPs are involved in UL positioning, the configuration of RS resources may be determined by the second device 320 by considering the multiple base stations. For example, the adjustment of RS transmit (Tx) resources may be determined based on multiple deep fade reports from multiple base stations to meet the expectations of the multiple base stations. As an example, if some devices expect a small number of overlapping RBs, but some devices expect a large number of overlapping RBs, the RS hopping pattern may be determined to have a larger or even maximum overlapping RBs.

[0080] In addition to the deep fade report, the configuration of the RS resources can be determined by the second device 320 by considering any other suitable factors. For example, the moving speed of the first device 310 can be considered in the adjustment of the configuration, which can be represented by Doppler shift or Doppler spread. Alternatively or additionally, the configuration can be determined by considering the ability of the first device 310 to switch between different jumps in RS frequency hopping.

[0081] Diagram 300 can be applied to DL and UL positioning. As an example, in the case of UL positioning, the terminal device 110 (such as a UE) may act as a transmitter of an RS for positioning across multiple carriers. In this example, the base station 120 or the base station 122 may act as the first device 310 and use UL measurements to determine deep fade reports. The location device 130 may act as the second device 320 and receive deep fade reports from the base station 120 or the base station 122. In the case of DL positioning, the terminal device 110 may act as the first device 310 and use DL measurements to determine deep fade reports, for example, based on a channel state information reference signal (CSI-RS). The serving base station 120 may act as the second device 320 and receive deep fade reports from the terminal device 110. The serving base station 120 may use the deep fade reports to determine overlapping RBs and / or REs for RS transmission of the terminal device 110, and configure the terminal device 110 appropriately. The RS may be configured on radio resource control (RRC) signaling. In this case, the process may optionally be transparent to the location device 130.

[0082] In some example embodiments, the RS Rx resources and Tx resources may be different. For example, the transmitted RS may occupy the full bandwidth, while the received RS may be associated with a narrowband for frequency hopping and BW splicing. In this example, the second device 320 may adjust the RS Rx resources (for Rx splicing) based on the deep fade report, and then signal the updated configuration to the first device 310.

[0083] Diagram 300 can also be applied to sidelink positioning. In this use case, RS can be received by the UE from one or more other UEs. Therefore, deep fading reports can be reported from the UE to other UEs. Other UEs can adjust RS resources for further communication.

[0084] Figure 4 An example process 400 for DL ​​positioning is shown according to some example embodiments of the present disclosure.

[0085] In this example, the first device 310 is implemented by the UE 405, and the second device 320 is implemented by the LMF 410. The DL RS is transmitted by the TRP or the gNB 415 to the UE 405. The RS resource may include a plurality of RBs, some of which overlap and are used for RS phase alignment.

[0086] like Figure 4 As shown, in process 400, LMF 410 may send (420) a configuration for deep fade measurement and reporting to UE 405. UE 405 may perform (425) deep fade measurement at a phase-aligned RB among a plurality of RBs for RS. UE 405 may prepare (430) a deep fade report and then send (435) the report to LMF 410 via LPP. LMF 410 may determine (440) a new configuration of RS Tx resources (also referred to as RS Tx configuration) based on the deep fade report. LMF 410 may send (445) the updated RS Tx configuration to UE 405 and also send (450) the updated PRS configuration to TRP or gNB 415 for further RS ​​communication between UE 405 and TRP or gNB 415.

[0087] Figure 5 1 is a flow chart showing an example method 500 for deep fade reporting for positioning according to some example embodiments of the present disclosure. The method 500 may be implemented in a Figure 3 The first device 310 is shown as being implemented. For the purpose of discussion, reference will be made to Figure 2 and Figure 3 The method 500 is described from the perspective of the first device 310 .

[0088] At block 505, the first device 310 performs deep fading measurements on resources in a plurality of resources 205-1 ... 205-N for measuring RS for positioning. Two resources in the plurality of resources partially overlap. A resource in the plurality of resources may include a plurality of RBs or REs. In some example embodiments, the resources may overlap in the frequency domain but not in the time domain. The resources may include resources of any suitable granularity, for example, one or more configured RS resources, one or more hops in RS frequency hopping, and / or one or more blocks of RBs or REs in RS splicing.

[0089] At block 510, based at least on the deep fade measurement, first device 310 sends a deep fade report associated with the plurality of resources to second device 320. In some example embodiments, in response to sending the deep fade report, first device 310 may receive an indication of a configuration for the plurality of resources from second device 320. The configuration may include at least one of: a number of overlapping subcarriers for two resources of the plurality of resources, and a number of frequency hopping for the plurality of resources.

[0090] As an example, in the case of UL positioning, the first device 310 may be implemented by the base station 120 or the base station 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 the UL RS resources from the second device 320, and determine its own configuration of the UL RS resources for the terminal device 110 or the terminal device 112 accordingly.

[0091] As another example, in the case of DL positioning, 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 the base station 122. In this example, after the first device 310 sends a deep fade report to the second device 120 or 122, the first device 310 may receive an indication of the DL RS configuration from the second device 120 or 122.

[0092] In some example embodiments, the first device 310 may receive at least one of the following from the second device 320: an indication of a portion of resources in the plurality of resources on which deep fade measurements are performed; an indication for triggering the performance of deep fade measurements; an indication of resources for sending deep fade reports; and an indication for triggering the sending of deep fade reports. Based on such indications, the first device 310 may determine when and where to perform deep fade measurements and reports.

[0093] In some example embodiments, a deep fade measurement may be performed based on a channel estimate on a resource in the plurality of resources. For example, the first device 310 may perform a channel estimate on a resource in the plurality of resources and then determine a deep fade metric (referred to as a first deep fade metric) based on the channel estimate. The deep fade report may indicate the first deep fade metric.

[0094] In some example embodiments, to determine the first deep fade metric, the first device 310 may at least determine the amplitude of a channel on a resource in the plurality of resources to perform channel estimation. The first device 310 may then determine the first deep fade metric based on a comparison of the amplitude with at least one threshold. In some example embodiments, the first device 310 may receive an indication of the at least one threshold from the second device 320. Alternatively or additionally, the at least one threshold may be predetermined or predefined, or determined by the first device 310 itself.

[0095] In some example embodiments, deep fade measurements may be performed on multiple portions of a resource in the multiple resources. For example, the first device 310 may determine a first deep fade metric on a portion of the resources in the multiple resources (referred to as the first portion), and determine another deep fade metric (referred to as the second deep fade metric) on another portion of the resources (referred to as the second portion). In this example, the deep fade report may also indicate the second deep fade metric.

[0096] In some example embodiments, the first device 310 may determine a validity time for the deep fade report and include the validity time in the report.The validity time may be determined based on channel fluctuations on a resource of the plurality of resources.

[0097] In some example embodiments, a deep fade report may be generated for a third device from which the RS is received from a resource in the plurality of resources. In an example embodiment in which a first device 310 (e.g., a UE) receives a plurality of RSs from a plurality of devices (e.g., a gNB or a TRP), the first device 310 may generate a deep fade report for each device (or each gNB or TRP).

[0098] In some example embodiments, in the case where first device 310 receives multiple RSs from multiple devices, first device 310 may perform deep fade measurement for devices having RS reception power below a threshold. For example, if first device 310 determines that the RS reception power on a resource is below a threshold, first device 310 may perform deep fade measurement on the resource.

[0099] In some example embodiments, the RS resource may include or be associated with a beam. In these example embodiments, the first device 310 may generate a deep fade report for a beam or for each beam or for each beamforming.

[0100] In some example embodiments, the deep fade report may indicate a plurality of deep fade levels. The plurality of deep fade levels may be associated with a plurality of overlap levels of the plurality of resources.

[0101] In some example embodiments, the first device 310 may send a deep fade report as part of a positioning measurement report. The deep fade report may be sent by the first device 310 to the second device 320 via LPP or NRPPa.

[0102] Figure 6 A flowchart of an example method 600 for deep fade reporting for positioning according to some example embodiments of the present disclosure is shown. The method 600 may be implemented in a Figure 3 The second device 320 is shown as being implemented. For the purpose of discussion, reference will be made to Figure 2 and Figure 3 The method 600 is described from the perspective of the second device 320 .

[0103] At block 605, second device 320 receives from first device 310 a deep fade report associated with a plurality of resources 205-1 ... 205-N for measuring RSs for positioning. The deep fade report is generated based at least on deep fade measurements on resources in the plurality of resources, two of which partially overlap. In some example embodiments, a resource in the plurality of resources may include a plurality of RBs or REs.

[0104] At block 610, based at least on the deep fade report, the second device 320 determines a configuration for the plurality of resources. The configuration may include at least one of: a number of overlapping subcarriers for two resources of the plurality of resources, and a number of frequency hopping for the plurality of resources.

[0105] In some example embodiments, the second device 320 may send an indication of the configuration to the first device 310 .

[0106] In some example embodiments, the second device 320 may send an indication of the configuration to the third device, the RS being sent from the third device on a resource in the plurality of resources. For example, in the case of DL positioning, 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 the DL RS from the base station 120 or the base station 122. In this example, after the second device 320 determines the configuration for the plurality of RS resources based at least on the deep fading report, the second device 320 may send an indication of the configuration to the base station 120 or the base station 122 as a suggestion for the DL RS configuration. In addition, the base station 120 or the base station 122 may make their own decision as to whether to use the indicated configuration.

[0107] In some example embodiments, the second device 320 may receive multiple deep fade reports and determine the RS configuration based on the multiple deep fade reports. For example, the second device 3320 may receive another deep fade report associated with the multiple resources from another device (referred to as a fourth device), and determine that the configuration for the multiple resources is further determined based on the other deep fade report. As an example, in the case of UL positioning involving multiple base stations, the second device 320 may receive multiple deep fade reports associated with RS resources and determine the RS configuration by considering all deep fade reports.

[0108] In some example embodiments, the second device 320 may configure when and where the deep fade measurement and / or reporting is performed. For example, the second device 320 may send to the first device 310 at least one of: an indication of a portion of the resources in the plurality of resources, at least a portion of the resources in the plurality of resources on which the deep fade measurement is performed, an indication for triggering the performance of the deep fade measurement, an indication of the resources for sending the deep fade report, and an indication for triggering the sending of the deep fade report.

[0109] In some example embodiments, in addition to the received deep fade report, the second device 320 may determine the configuration of the plurality of resources based on at least one of: a moving speed of the first device, and a capability of the first device to switch between the plurality of resources.

[0110] In some example embodiments, the deep fade report may include a validity time of the deep fade report.In some example embodiments, the deep fade report may be generated for a third device (eg, each transmitter) from which the RS is received by the first device 310 on a resource of the plurality of resources.

[0111] In some example embodiments, a resource of the plurality of resources may be associated with a beam. In these example embodiments, a deep fade report may be generated for a beam or per beamforming.

[0112] In some example embodiments, the deep fade report may indicate a plurality of deep fade levels. The plurality of deep fade levels may be associated with a plurality of overlap levels of the plurality of resources.

[0113] In some example embodiments, the second device 320 may receive a deep fade report as part of a positioning measurement report from the first device 310. In some example embodiments, the deep fade report may be received from the first device 310 via LPP or NRPPa.

[0114] In some example embodiments, the deep fade report may indicate a first deep fade metric determined based on a comparison of an amplitude of a channel on a resource in the plurality of resources with at least one threshold. In these example embodiments, second device 320 may send an indication of the at least one threshold to first device 310.

[0115] Reference above Figures 1 to 4 All operations and features described are equally applicable to methods 500 and 600 and have similar effects. For the purpose of simplicity, details will be omitted.

[0116] In some example embodiments, a device capable of performing method 500 (e.g., Figure 3 The first device 310 shown in FIG. 5 may include components for performing the corresponding steps of the method 500. The components may be implemented in any suitable form. For example, the components may be implemented in a circuit or a software module.

[0117] In some example embodiments, the apparatus includes: means for performing deep fade measurements on resources among a plurality of resources for measuring a reference signal for positioning, two of the plurality of resources partially overlapping; and means for sending a deep fade report associated with the plurality of resources to a second device based at least on the deep fade measurements.

[0118] In some example embodiments, a resource of the plurality of resources comprises a plurality of resource blocks or resource elements.

[0119] In some example embodiments, the apparatus further comprises means for receiving, in response to sending the deep fade report, an indication of a configuration for the plurality of resources from the second device.

[0120] In some example embodiments, the configuration includes at least one of: a number of overlapping subcarriers of two resources of the plurality of resources, and a number of frequency hopping of the plurality of resources.

[0121] In some example embodiments, the apparatus further comprises means for receiving, from a second device, at least one of: an indication of a portion of resources among a plurality of resources on which deep fade measurements are performed; an indication for triggering performance of deep fade measurements; an indication of resources for sending deep fade reports; and an indication for triggering sending of deep fade reports.

[0122] In some example embodiments, means for performing deep fade measurements includes means for performing channel estimation on a resource of the plurality of resources; and means for determining a first deep fade metric based on the channel estimation, the deep fade report indicating the first deep fade metric.

[0123] In some example embodiments, the means for performing channel estimation on a resource in the plurality of resources includes means for determining at least an amplitude of a channel on a resource in the plurality of resources; and the means for determining a first deep fade metric based on the channel estimate includes means for determining the first deep fade metric based on a comparison of the amplitude to at least one threshold.

[0124] In some example embodiments, the apparatus further comprises means for receiving an indication of the at least one threshold from the second device.

[0125] In some example embodiments, the first deep fade metric may be determined over a first portion of a resource in the plurality of resources. The apparatus may further include means for determining a second deep fade metric over a second, different portion of the resource in the plurality of resources, the deep fade report further indicating the second deep fade metric.

[0126] In some example embodiments, the apparatus further comprises: means for determining a channel fluctuation on the resource of the plurality of resources; and means for determining a valid time of the deep fade report based on the channel fluctuation, the deep fade report comprising the valid time.

[0127] In some example embodiments, the apparatus further comprises means for receiving a reference signal from a third device on a resource of the plurality of resources, the deep fade report being generated for the third device.

[0128] In some example embodiments, means for performing deep fade measurements includes means for determining that a received power of a reference signal is below a threshold; and means for performing deep fade measurements in response to determining that the received power of the reference signal is below the threshold.

[0129] In some example embodiments, a resource of the plurality of resources is associated with a beam and a deep fade report is generated for the beam.

[0130] In some example embodiments, the deep fade report indicates a plurality of deep fade levels.

[0131] In some example embodiments, a plurality of deep fade levels are associated with a plurality of overlapping levels of a plurality of resources.

[0132] In some example embodiments, means for sending the deep fade report includes means for sending the deep fade report as part of the positioning measurement report to the second device.

[0133] In some example embodiments, means for sending the deep fade report comprises means for sending the deep fade report to the second device via the Long Term Evolution Positioning Protocol or the New Radio Positioning Protocol a.

[0134] In some example embodiments, an apparatus capable of performing method 600 (e.g., Figure 3 The second device 320 shown in FIG. 6 may include components for executing the corresponding steps of method 600. The components may be implemented in any suitable form. For example, the components may be implemented in a circuit or a software module.

[0135] In some example embodiments, an apparatus includes: means for receiving, from a first device, a deep fade report associated with a plurality of resources for measuring a reference signal for positioning, the deep fade report being generated based at least on a deep fade measurement on a resource in the plurality of resources, two of the plurality of resources partially overlapping; and means for determining a configuration for the plurality of resources based at least on the deep fade report.

[0136] In some example embodiments, a resource of the plurality of resources comprises a plurality of resource blocks or resource elements.

[0137] In some example embodiments, the apparatus further comprises means for sending an indication of the configuration to the first device.

[0138] In some example embodiments, the apparatus further comprises means for sending an indication of the configuration to a third device, the reference signal being sent by the third device on a resource of the plurality of resources.

[0139] In some example embodiments, the configuration includes at least one of: a number of overlapping subcarriers of two resources of the plurality of resources, and a number of frequency hopping of the plurality of resources.

[0140] In some example embodiments, the apparatus further comprises means for receiving, from a fourth device, another deep fade report associated with the plurality of resources, the configuration of the plurality of resources being determined further based on the another deep fade report.

[0141] In some example embodiments, the apparatus further comprises: means for sending to the first device at least one of: an indication of a portion of resources among a plurality of resources on which a deep fade measurement is performed; an indication for triggering performance of a deep fade measurement; an indication of resources for sending a deep fade report; and an indication for triggering sending of a deep fade report.

[0142] In some example embodiments, the configuration of the plurality of resources is further determined based on at least one of: a moving speed of the first device, and a capability of the first device to switch between the plurality of resources.

[0143] In some example embodiments, the deep fade report includes a validity time of the deep fade report.

[0144] In some example embodiments, the deep fade report is generated for a third device and the reference signal is received by the first device from the third device on a resource of the plurality of resources.

[0145] In some example embodiments, a resource of the plurality of resources is associated with a beam and a deep fade report is generated for the beam.

[0146] In some example embodiments, the deep fade report indicates a plurality of deep fade levels.

[0147] In some example embodiments, a plurality of deep fade levels are associated with a plurality of overlapping levels of a plurality of resources.

[0148] In some example embodiments, means for receiving a deep fade report comprises means for receiving the deep fade report as part of a positioning measurement report from the first device.

[0149] In some example embodiments, means for receiving the deep fade report comprises means for receiving the deep fade report from the first device via the Long Term Evolution Positioning Protocol or the New Radio Positioning Protocol a.

[0150] In some example embodiments, the apparatus further comprises means for sending an indication of at least one threshold to the first device, the deep fade report indicating a first deep fade metric, the first deep fade metric determined based on a comparison of an amplitude of a channel on a resource of the plurality of resources with the at least one threshold.

[0151] Figure 7 700 is a simplified block diagram of a device 700 suitable for implementing an example embodiment of the present disclosure. The device 700 may be provided to implement a communication device, such as Figure 3The first device 310 or the second device 320 shown in FIG. As shown in the figure, 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.

[0152] The communication module 740 is used for two-way communication. The communication module 740 has at least one antenna to facilitate communication. The communication interface may represent any interface required to communicate with other network elements.

[0153] As non-limiting examples, processor 710 may be of any type suitable for a local technology network, and may include one or more of the following: a general purpose computer, a special purpose computer, a microprocessor, a digital signal processor (DSP), and a processor based on a multi-core processor architecture. Device 700 may have multiple processors, such as application specific integrated circuit chips that are time slaved to a clock that synchronizes a main processor.

[0154] The memory 720 may include one or more non-volatile memories and one or more volatile memories. Examples of non-volatile memories include, but are not limited to, read-only memory (ROM) 724, electrically programmable read-only memory (EPROM), flash memory, hard disk, compact disk (CD), digital video disk (DVD), and other magnetic storage and / or optical storage. Examples of volatile memories include, but are not limited to, random access memory (RAM) 722 and other volatile memories that do not persist during the duration of a power outage.

[0155] The computer program 730 includes computer executable instructions that are executed by the associated processor 710. The program 730 may be stored in a memory, such as ROM 724. The processor 710 may perform any suitable actions and processes by loading the program 730 into the RAM 722.

[0156] The exemplary embodiments of the present disclosure may be implemented by a program 730 so that the device 700 may execute the Figures 1 to 6 Any process of the present disclosure discussed. The exemplary embodiments of the present disclosure may also be implemented by hardware or by a combination of software and hardware.

[0157] In some example embodiments, the program 730 may be tangibly embodied in a computer-readable medium that may be included in the device 700 (such as in the memory 720) or in other storage devices 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 type of tangible non-volatile memory, such as ROM, EPROM, flash memory, hard disk, CD, DVD, etc. Figure 8An example of computer readable medium 800 in the form of a CD or DVD is shown. Computer readable medium 1200 has program 730 stored thereon.

[0158] Generally, various embodiments of the present disclosure may be implemented in hardware or dedicated circuits, software, logic, or any combination thereof. Some aspects may be implemented in hardware, and other aspects may be implemented in firmware or software, which may be executed by a controller, microprocessor, or other computing device. Although various aspects of the embodiments of the present disclosure are shown and described as block diagrams, flow charts, or using some other graphical representations, it should be understood that, as non-limiting examples, the blocks, devices, systems, techniques, or methods described herein may be implemented in hardware, software, firmware, dedicated circuits or logic, general hardware or controllers or other computing devices, or some combination thereof.

[0159] 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 instructions included in program modules, executed in a device on a target real or virtual processor to perform the above referenced Figure 1 to 1 0 described methods 800 to 1000. Typically, program modules include routines, programs, libraries, objects, classes, components, data structures, etc. that perform specific tasks or implement specific abstract data types. The functions of program modules can be combined or split between program modules as needed in various embodiments. Machine executable instructions for program modules can be executed in local or distributed devices. In distributed devices, program modules can be located in local and remote storage media.

[0160] The program code for executing the method of the present disclosure can be written in any combination of one or more programming languages. These program codes can be provided to a processor or controller of a general-purpose computer, a special-purpose computer or other programmable data processing device so that the program code enables the functions / operations specified in the flow chart and / or block diagram to be implemented when executed by the processor or controller. The program code can be executed entirely on the machine, partially on the machine, as an independent software package, partially on the machine and partially on a remote machine or entirely on a remote machine or server.

[0161] In the context of the present disclosure, computer program codes or related data may be carried by any suitable carrier to enable a device, apparatus or processor to perform various processes and operations as described above. Examples of carriers include signals, computer readable media, etc.

[0162] The computer readable medium may be a computer readable signal medium or a computer readable storage medium. The computer readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared or semiconductor system, device or apparatus, or any suitable combination of the foregoing. More specific examples of computer readable storage media would include an electrical connection with one or more wires, a portable computer disk, 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 disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0163] In addition, although the operations are depicted in a particular order, this should not be understood as requiring to perform such operations in the particular order shown or in the order of sequence, or to perform all the operations shown to achieve the desired result. In some cases, multitasking and parallel processing may be advantageous. Similarly, although several specific implementation details are included in the above discussion, these should not be interpreted as limitations on the scope of the present disclosure, but should be interpreted as descriptions of features that may be specific to a particular embodiment. Certain features described in the context of a separate embodiment may also be implemented in combination in a single embodiment. On the contrary, the various features described in the context of a single embodiment may also be implemented in multiple embodiments individually or in any suitable sub-combination.

[0164] Although the disclosure has been described in language specific to structural features and / or methodological acts, it should be understood that the disclosure defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.

Claims

1. A first device, comprising: at least one processor; as well as at least one memory storing instructions, which, when executed by the at least one processor, cause the first device to at least execute: performing deep fading measurement on a resource of a plurality of resources for measuring a reference signal for positioning, two resources of the plurality of resources partially overlapping; as well as Based at least on the deep fade measurements, a deep fade report associated with the plurality of resources is sent to a second device. 2 . The first device of claim 1 , wherein a resource in the plurality of resources comprises a plurality of resource blocks or resource elements.

3. The first device according to claim 1 or 2, wherein the first device is further configured to execute: In response to sending the deep fade report, receiving an indication of a configuration for the plurality of resources from the second device.

4. The first device according to claim 3, wherein the configuration comprises at least one of the following: the number of overlapping subcarriers of two resources of the plurality of resources, and The frequency hopping number of the plurality of resources.

5. The first device according to any one of claims 1 to 4, wherein the first device is further configured to perform: Receiving from the second device at least one of the following: an indication of a portion of the resources of the plurality of resources, the deep fade measurements being performed on at least the portion of the resources of the plurality of resources, an indication for triggering said performing of said deep fade measurement, an indication of resources used to send the deep fade report, and An indication of triggering the sending of the deep fade report.

6. The first device according to any one of claims 1 to 5, wherein performing the deep fade measurement comprises: performing channel estimation on the resource of the plurality of resources; as well as determining a first deep fade metric based on the channel estimate, Wherein the deep fade report indicates the first deep fade metric.

7. The first device according to claim 6, wherein Performing the channel estimation on the resource of the plurality of resources comprises: determining at least a magnitude of a channel on the resource of the plurality of resources; and Determining the first deep fade metric based on the channel estimate comprises: The first deep fade metric is determined based on a comparison of the amplitude to at least one threshold value.

8. The first device of claim 7, wherein the first device is further configured to perform: An indication of the at least one threshold is received from the second device.

9. The first device according to any one of claims 6 to 8, wherein the first deep fade metric is determined on a first portion of the resources in the plurality of resources, and the first device further comprises: determining a second deep fade metric over a second, different portion of said resources in said plurality of resources, Wherein the deep fade report further indicates the second deep fade metric.

10. The first device according to any one of claims 1 to 9, wherein the first device is further configured to perform: determining a channel fluctuation on the resource among the plurality of resources; and determining a validity period of the deep fade report based on the channel fluctuation, The deep fade report includes the validity time.

11. The first device according to any one of claims 1 to 10, wherein the first device is further configured to perform: receiving the reference signal from a third device on the resource of the plurality of resources, The deep fade report is generated for the third device.

12. The first device of claim 11, wherein performing the deep fade measurement comprises: Determining that a received power of the reference signal is lower than a threshold; as well as In response to determining that the received power of the reference signal is below the threshold, the deep fade measurement is performed.

13. The first device according to any one of claims 1 to 12, wherein the resource of the plurality of resources is associated with a beam and the deep fade report is generated for the beam.

14. The first device according to any one of claims 1 to 13, wherein the deep fade report indicates a plurality of deep fade levels.

15. The first device of claim 14, wherein the plurality of deep fade levels are associated with a plurality of overlapping levels of the plurality of resources.

16. The first device according to any one of claims 1 to 15, wherein sending the deep fade report comprises: The deep fade report is sent to the second device as part of a positioning measurement report.

17. The first device according to any one of claims 1 to 16, wherein sending the deep fade report comprises: The deep fade report is sent to the second device via the Long Term Evolution Positioning Protocol or the New Radio Positioning Protocol a.

18. A second device, comprising: at least one processor; as well as at least one memory storing instructions, wherein when the instructions are executed by the at least one processor, the second device at least executes: receiving, from a first device, a deep fade report associated with a plurality of resources for measuring a reference signal for positioning, the deep fade report being generated based at least on deep fade measurements on resources of the plurality of resources, two resources of the plurality of resources partially overlapping; as well as A configuration for the plurality of resources is determined based at least on the deep fade report. The second device of claim 18 , wherein a resource of the plurality of resources comprises a plurality of resource blocks or resource elements.

20. The second device according to claim 18 or 19, wherein the second device is further configured to perform: An indication of the configuration is sent to the first device.

21. The second device according to claim 18 or 19, wherein the second device is further configured to perform: The indication of the configuration is sent to a third device, the reference signal being sent by the third device on the resource of the plurality of resources.

22. The second device according to claim 20 or 21, wherein the configuration comprises at least one of the following: the number of overlapping subcarriers of two resources of the plurality of resources, and The number of hopping frequencies of the multiple resources.

23. The second device according to any one of claims 18 to 22, wherein the second device is further configured to perform: receiving another deep fade report associated with the plurality of resources from a fourth device, Wherein the configuration for the plurality of resources is further determined based on the another deep fade report.

24. The second device according to any one of claims 18 to 23, wherein the second device is further configured to perform: Sending at least one of the following to the first device: an indication of a portion of the resources of the plurality of resources, the deep fade measurements being performed on at least the portion of the resources of the plurality of resources, an indication for triggering the execution of the deep fade measurement, an indication of resources used to send the deep fade report, and An indication for triggering the sending of the deep fade report.

25. The second device according to any one of claims 18 to 24, wherein the configuration of the plurality of resources is further determined based on at least one of the following: the moving speed of the first device, and The capability of the first device to switch between the plurality of resources.

26. The second device according to any one of claims 18 to 25, wherein the deep fade report comprises a validity time of the deep fade report.

27. The second device according to any one of claims 18 to 26, wherein the deep fade 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.

28. The second device according to any one of claims 18 to 27, wherein the resource of the plurality of resources is associated with a beam and the deep fade report is generated for the beam.

29. The second device according to any one of claims 18 to 28, wherein the deep fade report indicates a plurality of deep fade levels.

30. The second device of claim 29, wherein the plurality of deep fade levels are associated with a plurality of overlapping levels of the plurality of resources.

31. The second device of any one of claims 18 to 30, wherein receiving the deep fade report comprises: The deep fade report is received from the first device as part of a positioning measurement report.

32. The second device of any one of claims 18 to 31, wherein receiving the deep fade report comprises: The deep fade report is received from the first device via the Long Term Evolution Positioning Protocol or the New Radio Positioning Protocol a.

33. The second device according to any one of claims 1 to 32, wherein the second device is further configured to perform: sending an indication of at least one threshold to the first device; Wherein the deep fade report indicates a first deep fade metric, the first deep fade metric determined based on a comparison of a magnitude of a channel on the resource of the plurality of resources with the at least one threshold.

34. A method comprising: At the first device, performing deep fading measurement on a resource of a plurality of resources for measuring a reference signal for positioning, two resources of the plurality of resources partially overlapping; as well as Based at least on the deep fade measurements, a deep fade report associated with the plurality of resources is sent to a second device.

35. The method of claim 34, wherein a resource of the plurality of resources comprises a plurality of resource blocks or resource elements.

36. The method according to claim 34 or 35, further comprising: In response to sending the deep fade report, receiving an indication of a configuration for the plurality of resources from the second device.

37. The method of claim 36, wherein the configuration comprises at least one of: the number of overlapping subcarriers of two resources of the plurality of resources, and The frequency hopping number of the plurality of resources.

38. The method according to any one of claims 34 to 37, further comprising: Receiving from the second device at least one of the following: an indication of a portion of the resources of the plurality of resources, the deep fade measurements being performed on at least the portion of the resources of the plurality of resources, an indication for triggering said performing of said deep fade measurement, an indication of resources used to send the deep fade report, and An indication of triggering the sending of the deep fade report.

39. The method of any one of claims 34 to 38, wherein performing the deep fade measurements comprises: performing channel estimation on the resource of the plurality of resources; as well as determining a first deep fade metric based on the channel estimate, Wherein the deep fade report indicates the first deep fade metric.

40. The method of claim 39, wherein Performing the channel estimation on the resource of the plurality of resources comprises: determining a magnitude of a channel on the resource of the plurality of resources; and Determining the first deep fade metric based on the channel estimate comprises: The first deep fade metric is determined based on a comparison of the amplitude to at least one threshold value.

41. The method of claim 40, further comprising: An indication of the at least one threshold is received from the second device.

42. The method of any one of claims 39 to 41, wherein the first deep fade metric is determined over a first portion of the resources in the plurality of resources, and the method further comprises: determining a second deep fade metric over a second, different portion of said resources in said plurality of resources, Wherein the deep fade report further indicates the second deep fade metric.

43. The method according to any one of claims 34 to 42, further comprising: determining a channel fluctuation on the resource among the plurality of resources; as well as determining a validity period of the deep fade report based on the channel fluctuation, The deep fade report includes the validity time.

44. The method according to any one of claims 34 to 43, further comprising: receiving the reference signal from a third device on the resource of the plurality of resources, The deep fade report is generated for the third device.

45. The method of claim 44, wherein performing the deep fade measurements comprises: Determining that a received power of the reference signal is lower than a threshold; as well as In response to determining that the received power of the reference signal is below the threshold, the deep fade measurement is performed.

46. ​​The method of any one of claims 34 to 45, wherein the resource of the plurality of resources is associated with a beam and the deep fade report is generated for the beam.

47. A method according to any one of claims 34 to 46, wherein the deep fade report indicates a plurality of deep fade levels.

48. The method of claim 47, wherein the plurality of deep fade levels are associated with a plurality of overlap levels of the plurality of resources.

49. The method of any one of claims 34 to 48, wherein sending the deep fade report comprises: The deep fade report is sent to the second device as part of a positioning measurement report.

50. The method of any one of claims 34 to 49, wherein sending the deep fade report comprises: The deep fade report is sent to the second device via the Long Term Evolution Positioning Protocol or the New Radio Positioning Protocol a.

51. A method comprising: At the second device, receiving, from a first device, a deep fade report associated with a plurality of resources for measuring a reference signal for positioning, the deep fade report being generated based at least on deep fade measurements on resources of the plurality of resources, two resources of the plurality of resources partially overlapping; as well as A configuration for the plurality of resources is determined based at least on the deep fade report.

52. The method of claim 51, wherein the resource of the plurality of resources comprises a plurality of resource blocks or resource elements.

53. The method according to claim 51 or 52, further comprising: An indication of the configuration is sent to the first device.

54. The method according to claim 51 or 52, further comprising: The indication of the configuration is sent to a third device, the reference signal being sent by the third device on the resource of the plurality of resources.

55. The method of claim 53 or 54, wherein the configuration comprises at least one of: the number of overlapping subcarriers of two resources of the plurality of resources, and The number of hopping frequencies of the multiple resources.

56. The method according to any one of claims 51 to 55, further comprising: receiving another deep fade report associated with the plurality of resources from a fourth device, Wherein the configuration for the plurality of resources is further determined based on the another deep fade report.

57. The method according to any one of claims 51 to 56, further comprising: Sending at least one of the following to the first device: an indication of a portion of the resources of the plurality of resources, the deep fade measurements being performed on at least the portion of the resources of the plurality of resources, an indication for triggering the execution of the deep fade measurement, an indication of resources used to send the deep fade report, and An indication for triggering the sending of the deep fade report.

58. The method of any one of claims 51 to 57, wherein the configuration of the plurality of resources is further determined based on at least one of: the moving speed of the first device, and The capability of the first device to switch between the plurality of resources.

59. The method of any one of claims 51 to 58, wherein the deep fade report comprises a validity time of the deep fade report.

60. The method of any one of claims 51 to 59, wherein the deep fade 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.

61. The method of any one of claims 51 to 60, wherein the resource of the plurality of resources is associated with a beam and the deep fade report is generated for the beam.

62. The method of any one of claims 51 to 61, wherein the deep fade report indicates a plurality of deep fade levels.

63. The method of claim 63, wherein the plurality of deep fade levels are associated with a plurality of overlap levels of the plurality of resources.

64. The method of any one of claims 51 to 63, wherein receiving the deep fade report comprises: The deep fade report is received from the first device as part of a positioning measurement report.

65. The method of any one of claims 51 to 64, wherein receiving the deep fade report comprises: The deep fade report is received from the first device via the Long Term Evolution Positioning Protocol or the New Radio Positioning Protocol a.

66. The method according to any one of claims 51 to 65, further comprising: sending an indication of at least one threshold to the first device; Wherein the deep fade report indicates a first deep fade metric, the first deep fade metric determined based on a comparison of a magnitude of a channel on the resource of the plurality of resources with the at least one threshold.

67. An apparatus comprising: means for performing deep fade measurements on a resource of a plurality of resources for measuring a reference signal for positioning, two resources of the plurality of resources partially overlapping; as well as Means for transmitting, to a second device, a deep fade report associated with the plurality of resources based at least on the deep fade measurement.

68. An apparatus comprising: means for receiving, from a first device, a deep fade report associated with a plurality of resources for measuring a reference signal for positioning, the deep fade report being generated based at least on deep fade measurements on resources of the plurality of resources, two of the plurality of resources partially overlapping; as well as Means for determining a configuration for the plurality of resources based at least on the deep fade report.

69. A computer readable medium comprising instructions stored thereon, the instructions being configured to cause an apparatus to at least perform the method of any one of claims 34 to 50 or 51 to 66.

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