Dynamic configuration of measurement parameters for sidelink positioning

Abstract

The embodiment of the invention relates to a device, a method and a computer readable storage medium for dynamic configuration of measurement parameters for sidelink positioning. In the method, a first device receives a plurality of measurement configurations for sidelink positioning from a second device. Further, if it is determined that a first trigger condition defined in the plurality of measurement configurations is satisfied, a first measurement configuration corresponding to the first trigger condition is determined from the plurality of measurement configurations. In this way, the proposed solution can advantageously increase the positioning accuracy.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to and the benefit of Indian Provisional Application No. 202341065018, filed on September 27, 2023, the contents of which are incorporated herein by reference in their entirety. Technical Field

[0003] Example embodiments of the present disclosure relate generally to the field of telecommunications, and more particularly, to methods, devices, apparatuses, and computer-readable storage media for dynamic configuration of measurement parameters for sidelink (SL) positioning. Background Art

[0004] Location awareness is a fundamental aspect of wireless communication networks and will enable countless location-enabled services in different applications. Location information can be obtained through various positioning technologies.

[0005] SL positioning is one of the positioning techniques, which is based on the transmission of SL positioning reference signals (SL-PRS) between anchor points and target user equipment (UE) to achieve positioning of the target UE within the precise delay and accuracy requirements of the corresponding SL positioning session. In the SL positioning scenario, the target UE can perform the SL positioning process, for example, by exchanging SL-PRS with one or more anchor UEs to determine its position. In some cases, the target UE can perform self-positioning based on PRS signals from neighboring anchor UEs to locate itself. Summary of the invention

[0006] In a first aspect of the present disclosure, 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: receive multiple measurement configurations for sidelink positioning from a second device; and if it is determined that a first trigger condition defined in the multiple measurement configurations is met, determine a first measurement configuration corresponding to the first trigger condition from the multiple measurement configurations.

[0007] In a second aspect of the present disclosure, 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: transmit multiple measurement configurations of measurement parameters for sidelink positioning to a first device; and receive an indication of a first measurement configuration from the first device, wherein the first measurement configuration is determined from multiple measurement configurations for sidelink positioning in response to a first trigger condition being satisfied, wherein the first trigger condition corresponds to the first measurement configuration and is defined in the multiple measurement configurations.

[0008] In a third aspect of the present disclosure, a third device is provided. The third device includes: at least one processor; and at least one memory storing instructions, which, when executed by the at least one processor, cause the third device to at least: receive an indication of a first measurement configuration from a second device, the first measurement configuration being determined from a plurality of measurement configurations for sidelink positioning of the first device in response to a first trigger condition being satisfied, wherein the first trigger condition corresponds to the first measurement configuration and is defined in the plurality of measurement configurations; and transmit information indicating whether the first measurement configuration is accepted for use to the second device.

[0009] In a fourth aspect of the present disclosure, a method is provided. The method includes: receiving a plurality of measurement configurations for sidelink positioning from a second device; and if it is determined that a first trigger condition defined in the plurality of measurement configurations is satisfied, determining a first measurement configuration corresponding to the first trigger condition from the plurality of measurement configurations.

[0010] In a fifth aspect of the present disclosure, a method is provided. The method includes: transmitting a plurality of measurement configurations of measurement parameters for sidelink positioning to a first device; and receiving an indication of a first measurement configuration from the first device, the first measurement configuration being determined from the plurality of measurement configurations for sidelink positioning in response to a first trigger condition being satisfied, wherein the first trigger condition corresponds to the first measurement configuration and is defined in the plurality of measurement configurations.

[0011] In a sixth aspect of the present disclosure, a method is provided. The method includes: receiving an indication of a first measurement configuration from a second device, the first measurement configuration being determined from a plurality of measurement configurations for sidelink positioning of the first device in response to a first trigger condition being satisfied, wherein the first trigger condition corresponds to the first measurement configuration and is defined in the plurality of measurement configurations; and transmitting information indicating whether the first measurement configuration is accepted for use to the second device.

[0012] In a seventh aspect of the present disclosure, a first device is provided. The first device includes: a component for receiving multiple measurement configurations for sidelink positioning from a second device; and a component for determining a first measurement configuration corresponding to the first trigger condition from the multiple measurement configurations if a first trigger condition defined in the multiple measurement configurations is determined to be satisfied.

[0013] In an eighth aspect of the present disclosure, a second device is provided. The second device includes: a component for transmitting a plurality of measurement configurations of measurement parameters for sidelink positioning to a first device; and a component for receiving an indication of a first measurement configuration from the first device, the first measurement configuration being determined from the plurality of measurement configurations for sidelink positioning in response to a first trigger condition being satisfied, wherein the first trigger condition corresponds to the first measurement configuration and is defined in the plurality of measurement configurations.

[0014] In a ninth aspect of the present disclosure, a third device is provided. The third device includes: a component for receiving an indication of a first measurement configuration from a second device, the first measurement configuration being determined from a plurality of measurement configurations for sidelink positioning of the first device in response to a first trigger condition being satisfied, wherein the first trigger condition corresponds to the first measurement configuration and is defined in the plurality of measurement configurations; and a component for transmitting information indicating whether the first measurement configuration is accepted for use to the second device.

[0015] In a tenth aspect of the present disclosure, a computer-readable medium is provided, wherein the computer-readable medium includes instructions stored thereon, and the instructions are used to cause a device to at least execute the method according to the fourth aspect.

[0016] In an eleventh aspect of the present disclosure, a computer-readable medium is provided, wherein the computer-readable medium includes instructions stored thereon, and the instructions are used to cause a device to at least execute the method according to the fifth aspect.

[0017] In a twelfth aspect of the present disclosure, a computer-readable medium is provided, wherein the computer-readable medium includes instructions stored thereon, and the instructions are used to cause a device to at least execute the method according to the sixth aspect.

[0018] It should be understood that the invention summary is not intended to identify the key features or essential features of the embodiments of the present disclosure, nor is it intended 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

[0019] Some example embodiments will now be described with reference to the accompanying drawings, in which:

[0020] Figure 1 An example communication environment is shown in which example embodiments of the present disclosure may be implemented;

[0021] Figure 2A is a schematic diagram showing a measurement gap pattern for radio resource management (RRM) measurement in the RRC_CONNECTED state;

[0022] Figure 2B An example SL positioning scenario is shown;

[0023] Figure 2C Another example SL positioning scenario is shown;

[0024] Figure 3 A signaling diagram illustrating configuration of measurement parameters for sidelink positioning according to some example embodiments of the present disclosure;

[0025] Figure 4is a schematic diagram showing the relationship between a positioning reference signal processing window (PPW) and a positioning reference signal processing window repetition period (PPWRP);

[0026] Figure 5 is a schematic diagram illustrating an example positioning reference signal (PRS) configuration for a stationary target UE;

[0027] Figure 6 is a schematic diagram illustrating an example PRS configuration for a fast moving target UE;

[0028] Figure 7 A signaling diagram illustrating dynamic configuration of measurement parameters for sidelink positioning according to some example embodiments of the present disclosure;

[0029] Figure 8 A flowchart showing a method implemented at a first device according to some example embodiments of the present disclosure is shown;

[0030] Fig. 9 A flowchart showing a method implemented at a second device according to some example embodiments of the present disclosure is shown;

[0031] Fig.10 A flowchart of a method implemented at a third device according to some example embodiments of the present disclosure is shown;

[0032] Fig.11 shows a simplified block diagram of a device suitable for implementing an example embodiment of the present disclosure; and

[0033] Fig.12 A block diagram of an example computer-readable medium is shown according to some example embodiments of the present disclosure.

[0034] Throughout the drawings, the same or similar reference numerals refer to the same or similar elements. DETAILED DESCRIPTION

[0035] 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 the purpose of illustration, 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. In addition to the embodiments described below, the embodiments described herein can be implemented in various ways.

[0036] 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.

[0037] 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 every embodiment necessarily includes the particular feature, structure, or characteristic. Furthermore, these phrases are not necessarily referring to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in conjunction with an embodiment, it is within the knowledge of those skilled in the art to affect such feature, structure, or characteristic in other embodiments, whether or not explicitly described.

[0038] It should be understood that, although the terms "first", "second", etc. can be used before nouns in this article 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 embodiment, the first element can be referred to as the second element, and similarly, the second element can be referred to as the first element. As used herein, the term "and / or" includes any and all combinations of one or more listed terms.

[0039] As used herein, “at least one of: ,” “at least one of ,” and similar descriptions (wherein a list of two or more elements is connected by “and” or “or”) mean at least any one element, or at least any two or more elements, or at least all elements.

[0040] As used herein, unless explicitly stated, performing a step “in response to A” does not mean performing the step immediately after “A” occurs, but may include one or more intermediate steps.

[0041] The terms used herein are used only to describe specific embodiments and are not intended to limit the example embodiments. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that when used herein, the terms "comprise", "comprising", "having", "having", "includes", and / or "including", 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.

[0042] As used in this application, the term "circuitry" may refer to one or more or all of the following:

[0043] (a) hardware circuit implementation only (such as implementation only in analog and / or digital circuitry); and

[0044] (b) a combination of hardware circuitry and software such as (where applicable):

[0045] (i) a combination of analog and / or digital hardware circuits and software / firmware; and

[0046] (ii) any portion of a hardware processor (including a digital signal processor) with software, software and memory that work together to enable a device (such as a mobile phone or server) to perform various functions; and

[0047] (c) Hardware circuits and / or processors, such as a microprocessor or portion of a microprocessor, that require software (eg, firmware) to operate, but which may not be present when the software is not required for operation.

[0048] This definition of circuitry applies to all uses of the term in this application, including in any claims. As a further example, as used in this application, the term circuitry also covers an implementation of only a hardware circuit, or a processor (or multiple processors), or a portion of a hardware circuit or processor and its (or their) accompanying software and / or firmware. The term circuitry also covers (e.g., if applicable to a particular claim element) 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.

[0049] 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 carried out according to any suitable generation communication protocol, including but not limited to the first generation (1G), second generation (2G), 2.5G, 2.75G, third generation (3G), fourth generation (4G), 4.5G, fifth generation (5G), sixth generation (6G) communication protocol 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 are of course communication technologies and systems of future types that can implement the present disclosure. The scope of the present disclosure should not be limited to the above-mentioned system.

[0050] As used herein, the term "network device" refers to the following node in a communication network, via which a terminal device accesses the network and receives services from the node. A network device may refer to a base station (BS) or an access point (AP), such as a Node B (NodeB or NB), an evolved NodeB (eNodeB or eNB), a NR NB (also referred to as a gNB), a remote radio unit (RRU), a radio head (RH), a remote radio head (RRH), a repeater, an integrated access and backhaul (IAB) node, a low-power node, such as a femto, a micro, a non-terrestrial network (NTN) or a non-terrestrial network device, such as a satellite network device, a low earth orbit (LEO) satellite and a geosynchronous orbit (GEO) satellite, an aircraft network device, etc., depending on the terminology and technology applied. In some example embodiments, a radio access network (RAN) split architecture includes a centralized unit (CU) and a distributed unit (DU) at an IAB donor node. The IAB node includes a mobile terminal (IAB-MT) portion that behaves like a user equipment (UE) to a parent node, and a distributed unit (DU) portion of the IAB node that behaves like a base station to a next-hop IAB node.

[0051] 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 equipment (LEE), a laptop mounted equipment (LME), a USB dongle, a smart device, a wireless user terminal 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 automatic processing chain environments), consumer electronic devices, equipment operating on commercial and / or industrial wireless networks, etc. The terminal device may also correspond to the mobile terminal (MT) part of an IAB node (eg, a relay node).In the following description, the terms "terminal device", "communication device", "terminal", "user device", "user equipment" and "UE" may be used interchangeably.

[0052] As used herein, the term "resource", "transmission resource", "resource block", "physical resource block" (PRB), "uplink resource" or "downlink resource" may refer to any resource used to perform communication (e.g., communication between a terminal device and a network device), such as a resource in the time domain, a resource in the frequency domain, a resource in the spatial domain, a resource in the code domain, or any other resource supporting communication. In the following, unless explicitly stated, resources in the frequency domain and the time domain will be used as examples of transmission resources for describing some example embodiments of the present disclosure. It should be noted that the example embodiments of the present disclosure are also applicable to other resources in other domains.

[0053] Figure 1 An example communication environment 100 in which example embodiments of the present disclosure may be implemented is shown. In the communication environment 100, there are multiple communication devices, for example, a first device 110, a second device 120, and a third device 130. Any two of these three devices may communicate with each other.

[0054] Sidelink (SL) positioning has been supported in New Radio (NR) systems. SL positioning is based on the transmission of Sidelink Positioning Reference Signals (SL PRS) by multiple anchor UEs. The SL-PRS will be received by the target UE, for example in the SL Time Difference of Arrival (TDOA) method. Alternatively, SL positioning is based on the exchange of SL PRS between the anchor UE and the target UE, for example in the SL Round Trip Time (RTT) method or in the multi-RTT method, so that the target UE positioning and / or target UE ranging relative to a reference UE (e.g., anchor UE) can be within the precise delay and accuracy requirements of the corresponding SL positioning.

[0055] As used herein, the term "target UE" refers to the UE to be positioned (in the context, using SL, i.e., PC5 interface). In other words, the target UE is the UE on which the positioning measurements discussed are performed. The term "anchor" or "anchor UE" refers to a UE that supports the positioning of the target UE, for example, by transmitting and / or receiving reference signals for positioning via the SL interface, providing positioning-related information, etc. The term "server UE" refers to a SL positioning server UE, which is a UE that provides method determination, auxiliary data distribution and / or position calculation functions for services based on side link positioning and ranging. In one example, a server UE may be a UE that provides a location server function in the absence of an LMF for side link positioning (i.e., when the target UE is not within coverage). The term "side link positioning" refers to a positioning UE that uses a reference signal transmitted on the SL (i.e., PC5 interface) to obtain an absolute position, a relative position, or ranging information. The term "ranging" refers to determining the distance and / or direction between a UE and another entity (e.g., an anchor UE). The term "Sidelink Positioning Reference Signal (SL PRS or SL-PRS)" refers to a reference signal transmitted on the SL for positioning purposes. Furthermore, the term "SL PRS (pre-) configuration" refers to the (pre-) configuration parameters of the SL PRS, such as the time-frequency resources including its bandwidth and periodicity (not excluding other parameters).

[0056] Hereinafter, for the purpose of illustration, some example embodiments are described in which the first device 110 operates as a target UE, the second device 120 operates as a server UE or a location management function (LMF) device, and the third device 130 operates as an anchor UE. However, it should be understood that the above examples are discussed only for the purpose of illustration and not limitation.

[0057] The communication in the communication environment 100 may be implemented according to any suitable communication protocol, including but not limited to cellular communication protocols of the first generation (1G), second generation (2G), third generation (3G), fourth generation (4G), fifth generation (5G), sixth generation (6G), etc., 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. In addition, the communication 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.

[0058] The present disclosure addresses open issues in sidelink (SL) positioning in 5G New Radio (NR), in particular reducing the adverse effects of mobility in SL positioning measurements.

[0059] Some existing solutions for SL positioning are targeted to support use cases such as vehicle-to-everything (V2X), public safety, commercial and industrial IoT (IIoT). Studies of scenarios and requirements for in-coverage, partial coverage and out-of-coverage NR positioning use cases for V2X and public safety use cases are already underway. In addition, ranging-based services and positioning accuracy requirements for IIoT use cases in out-of-coverage scenarios have been developed.

[0060] Performance requirements for different positioning service levels have been defined. Note that, along with horizontal and vertical accuracy requirements, requirements for positioning service availability and positioning service latency are particularly stringent for positioning service level 4 (99.9% availability and 15ms latency) and service level 6 (99.9% availability and 10ms latency). Examples of scenarios / use cases for positioning service level 4 and service level 6 include the following:

[0061] 1) V2X, Set-2 and Set-3 use cases: This corresponds to lane-level positioning requirement use cases such as vehicle platooning, cooperative lane merging, lane change warning, emergency brake warning, intersection movement assistance, etc., and to instrument positioning requirement use cases such as high-definition sensor sharing, vulnerable road user (VRU)-collision risk warning, cooperative maneuvering in emergency situations, real-time situational awareness and high-definition mapping, etc.

[0062] 2) IIoT: Future factory scenarios such as augmented reality in smart factories, mobile control panels with safety functions within smart factories (within hazardous areas of the factory), inbound logistics for manufacturing (for driving trajectories if there is further sensor support such as cameras, global navigation satellite systems (GNSS), inertial measurement units (IMUs) for indoor autonomous driving systems).

[0063] The following describes the UE measurement behavior when configured with Radio Resource Management (RRM) measurements. In cellular networks, RRM measurements are necessary to ensure that the UE remains connected to the best cell. Therefore, as a minimum, the UE will continuously need to measure the serving cell and look for other neighbors when on the serving carrier. However, in most cases, the UE must also search and measure cells on other carriers outside the serving cell.

[0064] This is done by the network configuring the UE with the carriers to measure and when to report the measurements taken to the network. The UE will perform those measurements and report them according to the network configuration, and the UE should follow the UE requirements, which are about how often and when the UE should measure and when to report those measurements.

[0065] For some carriers, these measurements may not be possible without a measurement gap (MG), where the UE temporarily stops using the current serving carrier(s), tunes to the carrier to be measured, and performs measurements on the configured carrier to be measured. Therefore, the UE cannot receive data on the serving cell / carrier during the configured measurement gap.

[0066] On some other carriers, the UE may perform measurements without gaps. However, in some cases, performing such measurements may result in some disruption to the serving carrier.

[0067] For robust network operation, the network needs to know which carriers the UE can measure without gaps and for which carriers the UE needs gaps to measure, as the network then needs to allocate gaps to the UE. Additionally, the network needs to know whether the UE causes an outage on the serving carrier during measurements without gaps.

[0068] In the existing design, it has been considered that: based on the received information as part of the on-demand PRS request from the UE, the measurement period of the UE in the radio resource control (RRC) inactive (INACTIVE) state is defined as the duration N i , defines the maximum duration, which the UE can assume on the corresponding frequency band or duration T i The maximum PRS bandwidth supported by the UE is used for buffering, and the duration N of the UE requesting to process the PRS is defined. i The required duration, assuming the maximum PRS bandwidth supported on the corresponding frequency band.

[0069] For SL positioning, a single component carrier is agreed to be supported, so the measurement requirements for gapless measurement apply. In one example, the SL PFL is not defined. The SL positioning RS is directly defined based on and contained within a single SL part bandwidth (BWP) and carrier. However, existing designs for gapless measurement have not considered dynamic configuration related to UE measurement behavior for sidelink positioning. Instead, existing designs have considered defining the number of PRS measurement samples based on the PRS bandwidth and the size of the difference between the SS-RSRP or PRS-RSRP of the serving cell and the PRS-RSRP of the neighboring cell. Similarly, the periodicity of the PRS reference signal time difference (RSTD) measurement in the positioning frequency layer fails to capture the dynamic behavior proposed by the SL UE.

[0070] When RRM measurements are configured and the UE requires measurement gaps, the UE measurement behavior in RRC_CONNECTED state is determined by a measurement gap pattern (MGP) with a measurement gap length (MGL) that repeats with the periodicity of a measurement gap repetition period (MGRP). Figure 2A As depicted in , RRM measurements requiring a measurement gap (MG) are only performed within the measurement gap. Figure 2A is a schematic diagram 200 showing a measurement gap pattern for RRM measurements in the RRC_CONNECTED state.

[0071] Considering the dynamic behavior of the sidelink UE performing SL positioning, both the anchor and target SL UEs can move from one SL coverage area to another. Figure 2B An example SL positioning scenario 201 is shown. Figure 2B In FIG. 1 , vehicle 210 may represent a target SL UE, and vehicles 220-1, 220-2, 220-3, 220-4, and 220-5 may represent a group of anchor SL UEs. Figure 2B As shown, since SL UE has limited SL coverage area compared to Uu coverage area, the measurement requirements for SL positioning need to be reconsidered. In addition, when performing positioning measurements, the reference position of the measurements tends to change due to SL UE mobility. Figure 2C Another example 202 of a SL positioning scenario is shown. Figure 2C As shown in , the combined measurements from both snapshot 1 and snapshot 2 may result in measurement errors. Figure 2C , vehicle 210 may represent a target SL UE, and vehicles 220 - 1 , 220 - 2 , and 220 - 3 may represent a group of anchor SL UEs.

[0072] The target UE may be configured to perform PRS measurements for positioning using one of the following methods according to the UE capabilities and LMF configuration:

[0073] 1) PRS measurement during measurement gaps: PRS measurement is performed during measurement gaps (which can also be periodic).

[0074] 2) PRS measurement without measurement gaps: PRS measurement is performed during the PRS processing window (it can also be periodic).

[0075] 3) On-demand PRS: The PRS transmission process can be initiated by the UE or LMF when needed. This process allows the LMF to control and decide whether to transmit PRS and change the characteristics of ongoing PRS transmission.

[0076] As an example, consider a target UE configured for PRS measurement without measurement gaps that performs PRS measurement every 200ms. If the target UE starts moving at high speed, the positioning measurement accuracy may degrade due to one of the following reasons:

[0077] 1) SL PRS measurement is done every 200ms, which means the position coordinates are updated every 200ms, and this may not be desirable in some use cases, which require accurate position updates very frequently. For example, in the case of V2X with autonomous driving, accurate position should be updated frequently to avoid any collision.

[0078] 2) In the case of SL PRS measurements, the anchor UE (which may be stationary or mobile) may be reselected very frequently due to the high speed of the target UE. This may lead to uncertainty in positioning measurements and / or frequent discarding of positioning measurements due to frequent anchor reselection.

[0079] If the measurement requirements are not addressed considering the dynamic behavior of SL UEs, it may lead to uncertainty in positioning measurements, degradation of measurement accuracy and / or measurement overhead.

[0080] In order to overcome the above problems, it is necessary to dynamically configure PRS measurements to improve positioning accuracy and reduce measurement errors or measurement overhead.

[0081] Several solutions are proposed herein to at least solve the above-mentioned problems. A method for configuring measurement parameters for sidelink positioning is proposed. In this method, one or more measurement parameters for sidelink positioning are dynamically modified at the target UE to perform sidelink positioning measurements. In some example embodiments, the measurement parameters may include a PRS processing window (PPW), that is, the duration of performing PRS measurements. Additionally or alternatively, the measurement parameters may include a PPW repetition period (PPWRP), that is, the time gap between consecutive PRS measurements containing PPW. In some further embodiments, the measurement parameters may include the minimum number of anchor UEs for PRS measurements. It should be understood that the examples of the above-mentioned measurement parameters are described for descriptive purposes only. The scope of the present disclosure is not limited in this respect.

[0082] By means of dynamic configuration of measurement parameters for sidelink positioning, the proposed solution may advantageously improve positioning accuracy and reduce measurement errors and / or measurement overhead.

[0083] Figure 3 A signaling diagram 300 is shown for configuration of measurement parameters for sidelink positioning according to some example embodiments of the present disclosure. For the purpose of discussion, reference will be made to Figure 1300 is discussed, for example, by using a first device 110, a second device 120, and a third device 130. In some example embodiments, the first device 110 may include a terminal device as a target device in a side link positioning procedure or session, and the second device 120 may include a terminal device or a network device (e.g., an LMF device) as a server in the side link positioning procedure or session. In addition, the third device 130 may include a terminal device as an anchor device in the side link positioning procedure or session.

[0084] In signaling diagram 300, second device 120 transmits (310) a plurality of measurement configurations of measurement parameters for sidelink positioning to first device 110. For example, each of the plurality of measurement configurations may include a trigger condition corresponding to at least one measurement parameter. Examples of measurement parameters include, but are not limited to, a positioning reference signal processing window (PPW), a positioning reference signal processing window repetition period (PPWRP), a minimum number of third devices 130 transmitting a sidelink reference signal for sidelink positioning, etc. By way of example and not limitation, the plurality of measurement configurations may be implemented as a table, etc.

[0085] The first device 110 receives (315) a plurality of measurement configurations from the second device 120. If it is determined that a first trigger condition defined in the plurality of measurement configurations is satisfied, the first device 110 determines (320) a first measurement configuration corresponding to the first trigger condition from the plurality of measurement configurations.

[0086] In some example embodiments, first device 110 may determine whether the first trigger condition is satisfied based on mobility information of first device 110. By way of example and not limitation, mobility information may include a speed of first device 110, a relative speed between first device 110 and third device 130 transmitting a sidelink reference signal for sidelink positioning, and the like.

[0087] Additionally or alternatively, the first device 110 may determine whether the first trigger condition is met based on the signal strength information of the received side link reference signal. In one example, the signal strength information may include the signal strength of each side link reference signal transmitted from the third device 130. In another example, the signal strength information may include a first number of third devices 130, each of which transmits a side link reference signal having a signal strength higher than a first threshold strength. In yet another example, the signal strength information may include a second number of third devices 130, each of which transmits a side link reference signal having a signal strength lower than a second threshold strength. It should be understood that the above examples are described for descriptive purposes only. The scope of the present disclosure is not limited in this respect.

[0088] It should be understood that the first device 110 can also determine whether the first trigger condition is met based on any other suitable information (e.g., importance information of the third device 130 that transmits the sidelink reference signal for sidelink positioning, etc.). The scope of the present disclosure is not limited in this regard. As an example and not a limitation, if it is determined that the measurement of the sidelink reference signal is performed for a set of third devices whose importance level exceeds the importance threshold, the first device 110 can determine that the first trigger condition is met.

[0089] The first device 110 may transmit (325) an indication of the first measurement configuration to the second device 120. By way of example and not limitation, the indication may include a trigger ID corresponding to the trigger condition, which will be described in detail below with reference to Table 1.

[0090] The second device 120 receives (330) an indication of the first measurement configuration from the first device 110. In addition, the second device 120 may determine whether the first device 110 can support the first measurement configuration based on data transmission requirements, anchor point reselection requirements, mobility requirements, signal strength requirements, anchor point importance requirements, etc. If it is determined that the first device 110 cannot support the first measurement configuration, the second device 120 may determine that the first measurement configuration is rejected for use. If it is determined that the first device 110 can support the first measurement configuration, the second device 120 may determine that the first measurement configuration is accepted for use.

[0091] The second device 120 may transmit (335) an indication of the first measurement configuration to the third device 130, and the third device 130 transmits a sidelink reference signal for sidelink positioning. The third device 130 receives (340) the indication of the first measurement configuration from the second device 120, and transmits information to the second device 120 indicating whether the first measurement configuration is accepted for use.

[0092] The second device 120 receives (350) information indicating whether the first measurement configuration is accepted for use from the third device 130. If the information indicates that the first measurement configuration is not accepted for use, the second device 120 may determine that the first measurement configuration is rejected for use. If the information indicates that the first measurement configuration is accepted for use, the second device 120 may determine that the first measurement configuration is accepted for use.

[0093] In some example embodiments, second device 120 may transmit first information indicating whether the first measurement configuration is accepted for use to first device 110. First device 110 may receive the first indication from second device 120. If it is determined that the first information indicates that the first measurement configuration is accepted for use, first device 110 may apply the first measurement configuration.

[0094] Alternatively, if it is determined that the first information indicates that the first measurement configuration is accepted for use, the first device 110 may transmit an indication of the first measurement configuration to the third device 130. After receiving the indication of the first measurement configuration, the third device 130 may transmit second information indicating whether the first measurement configuration is accepted for use to the first device 110. In addition, if it is determined that the first measurement configuration is accepted for use, the third device 130 may transmit a sidelink reference signal for sidelink positioning based on the first measurement configuration.

[0095] The first device 110 may receive the second information from the third device 130. If it is determined that the second information indicates that the first measurement configuration is accepted for use, the first device 110 may apply the first measurement configuration.

[0096] In view of the above, the proposed solution can advantageously dynamically configure measurement parameters for sidelink positioning, thereby improving positioning accuracy, and reducing or avoiding measurement errors and / or measurement overhead.

[0097] The following will refer to Figures 4 to 7 Describe in more detail Figure 3 The solution presented in . Figure 4 4 is a schematic diagram showing the relationship between PPW and PPWRP. Figure 4 As shown in , PPW represents the duration for which PRS measurement is performed, and PPWRP represents the time gap between consecutive PRS measurements including PPW.

[0098] The PPWRP values ​​and PPW values ​​for different trigger conditions can be pre-configured by the gNB / LMF. Several example trigger conditions for dynamic configuration of measurement parameters are shown in Table 1. It should be understood that the specific values ​​and trigger conditions listed in Table 1 are intended to be illustrative and not to limit the scope of the present disclosure.

[0099] Table 1 - Example of dynamic configuration of measurement parameters

[0100]

[0101]

[0102] In some example embodiments, if the speed of the mobile UE or the relative speed between the target UE and the anchor UE is lower than the speed threshold corresponding to trigger condition 1 in Table 1, the target UE, after receiving confirmation from the network, may apply the PPW / PPWRP value provided in Table 1 to the corresponding trigger condition 1. As an example, the speed threshold may be pre-configured by the gNB / LMF. Alternatively or additionally, if the speed of the mobile UE or the relative speed between the target UE and the anchor UE is higher than the speed threshold corresponding to trigger condition 2 in Table 1, the target UE, after receiving confirmation from the network, may apply the PPW / PPWRP value provided in Table 1 to the corresponding trigger condition 2.

[0103] In some example embodiments, if the measurement samples received from at least "n" anchor UEs in the PPW have good signal strength corresponding to the trigger conditions in Table 1, the target UE may dynamically reduce the PPW, for example based on a preconfigured value received from the gNB / LMF. Additionally or alternatively, the target UE may report a lower number of anchor UEs (above the signal strength threshold) and need not wait for measurement samples from the remaining anchor UEs. Thus, measurement and / or processing overhead at the target UE may be reduced or avoided.

[0104] In some further example embodiments, if the measurement samples received from at least "n" anchor UEs in the PPW have a signal strength corresponding to trigger condition 4 in Table 1 that is less than a threshold, i.e., the signal strength has degraded, the target UE may, for example, dynamically increase the PPW based on a preconfigured value received from the gNB / LMF. Additionally or alternatively, the target UE may report a greater number of anchor UEs so that a greater number of measurement samples may be received from other anchor UEs. Thus, in the case of weak PRS signal strength, measurement accuracy may be improved.

[0105] In addition, in the positioning of the target UE, a list of anchor UEs and the importance level (e.g., high, low) of each anchor UE may be provided to the target UE. In this case, the positioning support (i.e., SL PRS transmission) of the anchor UE with a higher importance level contributes more to the accuracy performance of the UE. If the target UE has performed measurements on the SLPRS transmitted from the anchor UE of high importance, which corresponds to trigger condition 5 in Table 1, the target UE may not wait for measurement samples from the remaining anchor UEs.

[0106] For ease of understanding, example behaviors of the target UE, the network (eg, the server UE or LMF) and the anchor UE / RSU according to some example embodiments of the present disclosure will be described respectively in conjunction with the above Table 1.

[0107] In the event that any trigger condition in Table 1 is met, the target UE may indicate to the network that the trigger condition is met and a trigger ID for modifying the PPW / PPWRP configuration as in Table 1. In addition, if confirmation is received from the network, the target UE may apply PPW / PPWRP for the corresponding trigger condition. In addition, if configured by the network, the target UE may indicate the updated PPW / PPWRP configuration to the roadside unit (RSU) and / or the anchor UE.

[0108] Upon receiving a request for configuring a dynamic PRS configuration and a trigger ID (according to the trigger conditions listed in Table 1) from the target UE, the network may confirm the UE by accepting the configuration. In addition, the network may indicate to the anchor UE about the updated PRS transmission configuration. Alternatively, the network may reject the dynamic configuration request from the target UE if the network cannot support the modification or if the network receives a rejection message from any anchor UE. The network may also notify the target UE of the rejection.

[0109] Upon receiving a request for configuring a dynamic PRS configuration from the network or target UE, the RSU or anchor UE may align PRS transmission based on the received PPW and PPWRP. Alternatively, the RSU or anchor UE may reject the received configuration and inform the network.

[0110] It should be understood that the solutions according to some exemplary embodiments of the present disclosure may also be applicable to traditional positioning, in which the anchor UE may be replaced by a transmission and reception point (TRP). The scope of the present disclosure is not limited in this respect.

[0111] Figure 5 5 is a schematic diagram 500 showing an example PRS configuration for a stationary target UE. Figure 5 In the example PRS configuration shown, the PPW is 10 ms and the PPWRP is 200 ms. Dynamic configuration may be applied by the target UE based on predefined triggering conditions of a table received from the network (such as LMF or server UE). Figure 6 6 is a schematic diagram 600 showing an example PRS configuration for a fast moving target UE. Figure 6 As shown, the PRS configuration can be modified dynamically.

[0112] Figure 7 A signaling diagram 700 is shown for dynamic configuration of measurement parameters for sidelink positioning according to some example embodiments of the present disclosure. Figure 7 In the example, the target UE 701 may be Figure 1 The network 702 may include a LMF or a server UE, and may be Figure 1 In addition, the anchor UE 703 may be Figure 1 An example implementation of the third device 130 in .

[0113] At 710, the network 702 may transmit a sidelink (SL) measurement configuration and a table for dynamic SL configuration to the target UE 701. At 712, the network 702 may also transmit the SL measurement configuration to the anchor UE 703. At 714, the target UE 701 may report PRS measurements to the network 702 based on the SL measurement configuration. At 716, the target UE 701 may detect whether the state of the target UE 701 is changed. If the state is changed, the target UE 701 may determine the dynamic SL configuration based on the configured table consisting of the trigger condition. At 718, the target UE 701 indicates to the network 702 the detected change in the state of the target UE 701 (including the trigger ID). At 720, the network 702 indicates to the anchor UE 703 a modification of the SL measurement configuration (e.g., PRS transmission configuration). At 722, the anchor UE 703 determines whether to accept or reject the request for SL measurement configuration modification. At 724 , the anchor UE 703 may indicate to the network 702 an acceptance or rejection of the request for SL measurement configuration modification.

[0114] At 726, the network 702 may also determine whether to accept or reject the request for SL measurement configuration modification. As an example, if the anchor UE 703 has rejected the SL configuration modification, or if there are constraints within the network 702 (such as strict data TX / RX requirements, anchor UE 703 reselection in progress, etc.), the network 702 may reject the request for SL measurement configuration modification. Otherwise, the network 702 may accept the request for SL measurement configuration modification.

[0115] At 728, the network 702 may indicate to the target UE 701 an acceptance or rejection of the request for SL measurement configuration modification. In some example embodiments, at 730, if the request for SL measurement configuration modification is accepted, the target UE 701 may indicate the updated SL configuration to the anchor UE 703 (if required by the network 702). At 732, the anchor UE 703 may determine whether to accept the request. At 734, the network 702 may indicate to the target UE 701 an acceptance or rejection of the request for SL measurement configuration modification. At 736, if the request is accepted by the network 702 and the anchor UE 703, the target UE 701 may apply the SE configuration with the corresponding trigger condition in the table. Alternatively, the target UE 701 may apply the SE configuration with the corresponding trigger condition in the table configured according to the network 702.

[0116] In view of the above, the proposed solution can advantageously dynamically configure measurement parameters for sidelink positioning, thereby improving positioning accuracy, and reducing or avoiding measurement errors and / or measurement overhead.

[0117] Figure 8 A flowchart of an example method 800 implemented at a first device according to some example embodiments of the present disclosure is shown. For the purpose of discussion, the method 800 will be described from Figure 1 The angle of the first device 110 is described.

[0118] At block 810 , the first device 110 receives a plurality of measurement configurations for sidelink positioning from a second device.

[0119] At block 820 , if it is determined that the first trigger condition defined in the plurality of measurement configurations is satisfied, the first device 110 determines a first measurement configuration corresponding to the first trigger condition from the plurality of measurement configurations.

[0120] In some example embodiments, method 800 further includes determining whether the first trigger condition is satisfied based on at least one of: mobility information of the first device, signal strength information of a received sidelink reference signal, or importance information of a third device transmitting a sidelink reference signal for sidelink positioning.

[0121] In some example embodiments, the mobility information includes at least one of: a speed of the first device, or a relative speed between the first device and a third device transmitting a sidelink reference signal for said sidelink positioning.

[0122] In some example embodiments, the signal strength information includes at least one of: a signal strength of each side link reference signal transmitted from a third device; a first number of third devices, each of the third devices transmitting a side link reference signal having a signal strength greater than a first threshold strength; or a second number of third devices, each of the third devices transmitting a side link reference signal having a signal strength less than a second threshold strength.

[0123] In some example embodiments, the method 800 further comprises determining that the first trigger condition is satisfied if it is determined that the measurement of the sidelink reference signal is performed for a set of third apparatuses whose importance level exceeds an importance threshold.

[0124] In some example embodiments, the method 800 further comprises transmitting an indication of the first measurement configuration to the second apparatus.

[0125] In some example embodiments, the method 800 further includes: receiving first information from the second device, the first information indicating whether the first measurement configuration is accepted for use; and applying the first measurement configuration if it is determined that the first information indicates that the first measurement configuration is accepted for use.

[0126] In some example embodiments, method 800 further includes: receiving first information from a second device, the first information indicating whether the first measurement configuration is accepted for use; if it is determined that the first information indicates that the first measurement configuration is accepted for use, transmitting an indication of the first measurement configuration to a third device, the third device transmitting a side link reference signal for side link positioning; receiving second information from the third device, the second information indicating whether the first measurement configuration is accepted for use; and if it is determined that the second information indicates that the first measurement configuration is accepted for use, applying the first measurement configuration.

[0127] In some example embodiments, each of the multiple measurement configurations includes a trigger condition corresponding to at least one of the following measurement parameters: a positioning reference signal processing window PPW, a positioning reference signal processing window repetition period PPWRP, or a minimum number of third devices transmitting a side link reference signal for side link positioning.

[0128] Alternatively, the first device includes a target terminal device, the second device includes a server terminal device or a location management function device, and the third device includes an anchor terminal device.

[0129] Fig. 9 A flowchart of an example method 900 implemented at a second device according to some example embodiments of the present disclosure is shown. For the purpose of discussion, the method 900 will be described from Figure 1 The angle of the second device 120 is described.

[0130] At block 910 , the second device 120 transmits a plurality of measurement configurations of measurement parameters for sidelink positioning to the first device.

[0131] At block 920, the second device 120 receives an indication of a first measurement configuration from the first device. The first measurement configuration is determined from a plurality of measurement configurations for sidelink positioning in response to a first trigger condition being satisfied. The first trigger condition corresponds to the first measurement configuration and is defined in the plurality of measurement configurations.

[0132] In some example embodiments, method 900 further includes: determining whether the first device can support the first measurement configuration based on at least one of the following: data transmission requirements, anchor point reselection requirements, mobility requirements, signal strength requirements, or anchor point importance requirements; and if it is determined that the first device cannot support the first measurement configuration, determining that the first measurement configuration is denied use.

[0133] In some example embodiments, method 900 further includes: transmitting an indication of the first measurement configuration to a third device, the third device transmitting a side link reference signal for side link positioning; and receiving information from the third device indicating whether the first measurement configuration is accepted for use; and if it is determined that the first measurement configuration is not accepted for use, determining that the first measurement configuration is rejected for use.

[0134] In some example embodiments, the method 900 further comprises: transmitting, to the first device, first information indicating whether the first measurement configuration is accepted for use.

[0135] In some example embodiments, each of the multiple measurement configurations includes a trigger condition corresponding to at least one of the following measurement parameters: a positioning reference signal processing window PPW, a positioning reference signal processing window repetition period PPWRP, or a minimum number of third devices transmitting a side link reference signal for side link positioning.

[0136] Alternatively, the first device includes a target terminal device, the second device includes a server terminal device or a location management function device, and the third device includes an anchor terminal device.

[0137] Fig.10 A flowchart of an example method 1000 implemented at a third device according to some example embodiments of the present disclosure is shown. For the purpose of discussion, the method 1000 will be described from Figure 1 The angle of the third device 130 is described.

[0138] At block 1010, the third device 130 receives an indication of a first measurement configuration from the second device. The first measurement configuration is determined from a plurality of measurement configurations for sidelink positioning of the first device in response to a first trigger condition being satisfied. The first trigger condition corresponds to the first measurement configuration and is defined in the plurality of measurement configurations.

[0139] At block 1020 , the third device 130 transmits information to the second device indicating whether the first measurement configuration is accepted for use.

[0140] In some example embodiments, the method 1000 further includes: receiving an indication of the first measurement configuration from the first device; and transmitting second information to the first device indicating whether the first measurement configuration is accepted for use.

[0141] In some example embodiments, each of the multiple measurement configurations includes a trigger condition corresponding to at least one of the following measurement parameters: a positioning reference signal processing window PPW, a positioning reference signal processing window repetition period PPWRP, or a minimum number of third devices transmitting a side link reference signal for side link positioning.

[0142] In some example embodiments, method 1000 further includes: if it is determined that the first measurement configuration is accepted for use, transmitting a sidelink reference signal for sidelink positioning based on the first measurement configuration.

[0143] Alternatively, the first device includes a target terminal device, the second device includes a server terminal device or a location management function device, and the third device includes an anchor terminal device.

[0144] Example devices, equipment, and media

[0145] In some example embodiments, a first device (eg, Figure 1 The first device 110 in the method 800 may include components for performing the corresponding operations of the method 800. The device may be implemented in any suitable form. For example, the device may be implemented in a circuit system or a software module. The first device may be implemented as Figure 1 The first device 110 or is included in Figure 1 In the first device 110.

[0146] In some example embodiments, the first device includes: a component for receiving a plurality of measurement configurations for side link positioning from a second device; and a component for determining a first measurement configuration corresponding to the first trigger condition from the plurality of measurement configurations if it is determined that a first trigger condition in the plurality of measurement configurations is met.

[0147] In some exemplary embodiments, the first device also includes: a component for determining whether the first trigger condition is met based on at least one of the following: mobility information of the first device, signal strength information of a received side link reference signal, or importance information of a third device transmitting a side link reference signal for side link positioning.

[0148] In some exemplary embodiments, the mobility information includes at least one of: a speed of the first device, or a relative speed between the first device and a third device transmitting a sidelink reference signal for sidelink positioning.

[0149] In some example embodiments, the signal strength information includes at least one of: a signal strength for each side link reference signal transmitted from a third device, a first number of third devices, each of the third devices transmitting a side link reference signal having a signal strength greater than a first threshold strength, or a second number of third devices, each of the third devices transmitting a side link reference signal having a signal strength less than a second threshold strength.

[0150] In some example embodiments, the first apparatus further comprises means for determining that the first trigger condition is satisfied if the measurement of the sidelink reference signal is performed for a set of third apparatuses that determine that the level of importance exceeds an importance threshold.

[0151] In some example embodiments, the first apparatus further comprises means for transmitting an indication of the first measurement configuration to the second apparatus.

[0152] In some example embodiments, the first device further comprises: means for receiving first information from the second device, the first information indicating whether the first measurement configuration is accepted for use; and means for applying the first measurement configuration if it is determined that the first information indicates that the first measurement configuration is accepted for use.

[0153] In some example embodiments, the first device further includes: a component for receiving first information from the second device, the first information indicating whether the first measurement configuration is accepted for use; a component for transmitting an indication of the first measurement configuration to a third device if it is determined that the first information indicates that the first measurement configuration is accepted for use, and the third device transmits a sidelink reference signal for sidelink positioning; a component for receiving second information from the third device, the second information indicating whether the first measurement configuration is accepted for use; and a component for applying the first measurement configuration if it is determined that the second information indicates that the first measurement configuration is accepted for use.

[0154] In some example embodiments, each of the multiple measurement configurations includes a trigger condition corresponding to at least one of the following measurement parameters: a positioning reference signal processing window PPW, a component for positioning a reference signal processing window repetition period PPWRP, or a minimum number of third devices transmitting a side link reference signal for side link positioning.

[0155] Alternatively, the first device includes a target terminal device, the second device includes a server terminal device or a location management function device, and the third device includes an anchor terminal device.

[0156] In some example embodiments, the first apparatus further comprises means for performing other operations in some example embodiments of the method 800 or the first apparatus 110. In some example embodiments, the apparatus comprises at least one processor; and at least one memory storing instructions which, when executed by the at least one processor, cause performance of the first apparatus.

[0157] In some example embodiments, a second device (eg, Figure 1 The second device 120 in the method 900 may include components for performing the corresponding operations of the method 900. The device may be implemented in any suitable form. For example, the device may be implemented in a circuit system or a software module. The second device may be implemented as Figure 1 The second device 120 or is included in Figure 1 In the second device 120.

[0158] In some example embodiments, the second device includes: a component for transmitting multiple measurement configurations of measurement parameters for side link positioning to the first device; and a component for receiving an indication of a first measurement configuration from the first device, wherein the first measurement configuration is determined from the multiple measurement configurations for side link positioning in response to a first trigger condition being satisfied, wherein the first trigger condition corresponds to the first measurement configuration and is defined in the multiple measurement configurations.

[0159] In some example embodiments, the second device further includes: a component for determining whether the first device can support the first measurement configuration based on at least one of the following: a data transmission requirement, an anchor point reselection requirement, a mobility requirement, a signal strength requirement, or an anchor point importance requirement; and a component for determining that the first measurement configuration is rejected for use if it is determined that the first device cannot support the first measurement configuration.

[0160] In some example embodiments, the second device further includes: a component for transmitting an indication of the first measurement configuration to a third device, the third device transmitting a sidelink reference signal for sidelink positioning; and a component for receiving information from the third device indicating whether the first measurement configuration is accepted for use; and a component for determining that the first measurement configuration is rejected for use if it is determined that the information indicates that the first measurement configuration is not accepted for use.

[0161] In some example embodiments, the second apparatus further comprises means for transmitting, to the first apparatus, first information indicating whether the first measurement configuration is accepted for use.

[0162] In some example embodiments, each of the multiple measurement configurations includes a trigger condition corresponding to at least one of the following measurement parameters: a positioning reference signal processing window PPW, a component for positioning a reference signal processing window repetition period PPWRP, or a minimum number of third devices transmitting a side link reference signal for side link positioning.

[0163] Alternatively, the first device includes a target terminal device, the second device includes a server terminal device or a location management function device, and the third device includes an anchor terminal device.

[0164] In some example embodiments, the second device further comprises means for performing other operations in some example embodiments of the method 900 or the second device 120. In some example embodiments, the device comprises at least one processor; and at least one memory storing instructions which, when executed by the at least one processor, cause performance of the second device.

[0165] In some example embodiments, a third device (eg, Figure 1 The third device 130 in the method 1000 may include components for performing the corresponding operations of the method 1000. The device may be implemented in any suitable form. For example, the device may be implemented in a circuit system or a software module. The third device may be implemented as Figure 1 The third device 130 or is included in Figure 1 In the third device 130.

[0166] In some example embodiments, the third device includes: a component for receiving an indication of a first measurement configuration from the second device, the first measurement configuration being determined from multiple measurement configurations for side link positioning of the first device in response to a first trigger condition being satisfied, wherein the first trigger condition corresponds to the first measurement configuration and is defined in the multiple measurement configurations; and a component for transmitting information to the second device indicating whether the first measurement configuration is accepted for use.

[0167] In some example embodiments, the third apparatus further comprises: means for receiving an indication of the first measurement configuration from the first apparatus; and means for transmitting, to the first apparatus, second information indicating whether the first measurement configuration is accepted for use.

[0168] In some example embodiments, each of the multiple measurement configurations includes a trigger condition corresponding to at least one of the following measurement parameters: a positioning reference signal processing window PPW, a component for positioning a reference signal processing window repetition period PPWRP, or a minimum number of third devices transmitting a side link reference signal for side link positioning.

[0169] In some example embodiments, the third apparatus further comprises means for transmitting a sidelink reference signal for sidelink positioning based on the first measurement configuration if it is determined that the first measurement configuration is accepted for use.

[0170] Alternatively, the first device includes a target terminal device, the second device includes a server terminal device or a location management function device, and the third device includes an anchor terminal device.

[0171] In some example embodiments, the third apparatus further comprises means or third apparatus 130 for performing other operations in some example embodiments of method 1000. In some example embodiments, the means comprises at least one processor and at least one memory storing instructions which, when executed by the at least one processor, cause execution of the third apparatus.

[0172] Fig.11 1 is a simplified block diagram of a device 1100 suitable for implementing an example embodiment of the present disclosure. The device 1100 may be provided to implement a communication device, such as Figure 1 1 . As shown, the device 1100 includes one or more processors 1110, one or more memories 1120 coupled to the processor 1110, and one or more communication modules 1140 coupled to the processor 1110.

[0173] The communication module 1140 is used for two-way communication. The communication module 1140 has one or more communication interfaces to facilitate communication with one or more other modules or devices. The communication interface may represent any interface necessary for communicating with other network elements. In some example embodiments, the communication module 1140 may include at least one antenna.

[0174] Processor 1110 may be of any type suitable for the 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, as non-limiting examples. Device 1100 may have multiple processors, such as application specific integrated circuit chips, which are time-slaved to a clock synchronized with a main processor.

[0175] The memory 1120 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) 1124, electrically programmable read-only memory (EPROM), flash memory, hard disk, compact disk (CD), digital video disk (DVD), optical disk, laser disk, and other magnetic storage and / or optical storage. Examples of volatile memories include, but are not limited to, random access memory (RAM) 1122 and other volatile memories that will not persist during a power outage.

[0176] The computer program 1130 includes computer executable instructions executed by the associated processor 1110. The instructions of the program 1130 may include instructions for performing the operations / actions of some example embodiments of the present disclosure. The program 1130 may be stored in a memory, such as ROM 1124. The processor 1110 may perform any suitable actions and processes by loading the program 1130 into the RAM 1122.

[0177] The exemplary embodiments of the present disclosure may be implemented by the program 1130 so that the device 1100 may execute the reference Figures 3 to 10 Any process of the present disclosure discussed. Example embodiments of the present disclosure may also be implemented by hardware or by a combination of software and hardware.

[0178] In some example embodiments, the program 1130 may be tangibly embodied in a computer-readable medium, which may be included in the device 1100 (such as in the memory 1120) or in other storage devices accessible by the device 1100. The device 1100 may load the program 1130 from the computer-readable medium to the RAM 1122 for execution. In some example embodiments, the computer-readable medium may include any type of non-transitory storage medium, such as ROM, EPROM, flash memory, hard disk, CD, DVD, etc. The term "non-transitory" as used herein is a limitation of the medium itself (i.e., tangible, not a signal), not a limitation on data storage persistence (e.g., RAM versus ROM).

[0179] Fig.12 An example of a computer readable medium 1200 is shown, which may be in the form of a CD, DVD, or other optical storage disk. The computer readable medium 1200 has a program 1130 stored thereon.

[0180] In general, 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 illustrated and described as block diagrams, flow charts, or illustrated and described using some other graphical representations, it should be understood that, as non-limiting examples, the boxes, 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.

[0181] Some example embodiments of the present disclosure also provide at least one computer program product tangibly stored on a computer-readable medium (such as, non-volatile computer-readable medium). The computer program product includes computer executable instructions, such as those computer executable instructions executed in a device on a target physical or virtual processor included in a program module, to perform any method as described above. Typically, a program module includes routines, programs, libraries, objects, classes, components, data structures, etc. that perform specific tasks or implement specific abstract data types. In various embodiments, the functions of the program modules can be combined or split between program modules as needed. Machine executable instructions for program modules can be executed in local or distributed devices. In distributed devices, program modules can be located in both local storage media and remote storage media.

[0182] The program code for executing the method of the present disclosure can be written in any combination of one or more programming languages. The program code can be provided to a processor or controller in a general-purpose computer, a special-purpose computer or other programmable data processing device, so that the program code, when executed by the processor or controller, enables the functions / operations specified in the flow chart and / or block diagram to be realized. 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 completely on a remote machine or server.

[0183] 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.

[0184] 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, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or equipment, or any suitable combination of the foregoing. More specific examples of computer readable storage media will 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.

[0185] In addition, although operations are depicted in a particular order, this should not be construed as requiring such operations to be performed in the particular order shown or in a sequential order, or performing all illustrated operations, to achieve the desired result. In some cases, multitasking and parallel processing can 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 rather as descriptions of features that may be specified in a particular embodiment. Unless expressly stated, certain features described in the context of a separate embodiment may also be implemented in combination in a single embodiment. On the contrary, unless expressly stated, 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.

[0186] Although the present disclosure has been described in language specific to structural features and / or methodological actions, it should be understood that the present disclosure defined in the appended claims is not necessarily limited to the specific features or actions described above. Instead, the specific features and actions described above are disclosed as example forms of implementing the claims.

Claims

1. A first device for communication, comprising: at least one processor; as well as at least one memory storing instructions that, when executed by the at least one processor, cause the first device to at least: receiving, from a second device, a plurality of measurement configurations for sidelink positioning; as well as If it is determined that a first trigger condition defined in the multiple measurement configurations is satisfied, a first measurement configuration corresponding to the first trigger condition is determined from the multiple measurement configurations.

2. The first device according to claim 1, wherein the first device is configured to: Determine whether the first trigger condition is met based on at least one of the following: mobility information of the first device, signal strength information of a received sidelink reference signal, or importance information of a third device transmitting the sidelink reference signal for the sidelink positioning.

3. The first device according to claim 2, wherein the mobility information comprises at least one of the following: the speed of the first device, or A relative speed between the first device and a third device transmitting a sidelink reference signal for the sidelink positioning.

4. The first device according to claim 2, wherein the signal strength information comprises at least one of the following: a signal strength of each sidelink reference signal transmitted from the third device, a first number of third devices, each of which transmits a sidelink reference signal having a signal strength higher than a first threshold strength; or A second number of third devices is as follows, each of which transmits a sidelink reference signal with a signal strength lower than a second threshold strength.

5. The first device according to claim 2, wherein the first device is configured to: If it is determined that the measurement of the sidelink reference signal is performed for a set of third devices whose importance levels exceed an importance threshold, it is determined that the first trigger condition is met.

6. The first device according to claim 1, wherein the first device is caused to: An indication of the first measurement configuration is transmitted to the second device.

7. The first device according to any one of claims 1 to 6, wherein the first device is configured to: receiving first information from the second device, the first information indicating whether the first measurement configuration is accepted for use; and If it is determined that the first information indicates that the first measurement configuration is accepted for use, the first measurement configuration is applied.

8. The first device according to any one of claims 1 to 6, wherein the first device is configured to: receiving first information from the second device, the first information indicating whether the first measurement configuration is accepted for use; If it is determined that the first information indicates that the first measurement configuration is accepted for use, transmitting an indication of the first measurement configuration to a third device, the third device transmitting a sidelink reference signal for the sidelink positioning; receiving second information from the third device, the second information indicating whether the first measurement configuration is accepted for use; as well as If it is determined that the second information indicates that the first measurement configuration is accepted for use, the first measurement configuration is applied.

9. The first apparatus according to any one of claims 1 to 6, wherein each of the plurality of measurement configurations comprises a trigger condition corresponding to at least one of the following measurement parameters: Positioning reference signal processing window, Positioning reference signal processing window repetition period, or A minimum number of third devices transmitting a sidelink reference signal for said sidelink positioning.

10. The first device according to any one of claims 1 to 6, wherein the first device comprises a target terminal device, the second device comprises a server terminal device or a location management function device, and the third device comprises an anchor terminal device.

11. A second device for communication, comprising: at least one processor; as well as at least one memory storing instructions that, when executed by the at least one processor, cause the second device to at least: transmitting a plurality of measurement configurations of measurement parameters for sidelink positioning to the first device; as well as An indication of a first measurement configuration is received from the first device, the first measurement configuration being determined from a plurality of measurement configurations for sidelink positioning in response to a first trigger condition being satisfied, wherein the first trigger condition corresponds to the first measurement configuration and is defined in the plurality of measurement configurations.

12. The second device according to claim 11, wherein the second device is caused to: determining whether the first device can support the first measurement configuration based on at least one of the following: data transmission requirement, anchor point reselection requirement, mobility requirement, signal strength requirement, and anchor point importance requirement; and If it is determined that the first device cannot support the first measurement configuration, it is determined that the first measurement configuration is rejected.

13. The second device according to claim 11, wherein the second device is caused to: transmitting an indication of the first measurement configuration to a third device, the third device transmitting a sidelink reference signal for sidelink positioning; as well as receiving, from the third device, information indicating whether the first measurement configuration is accepted for use; as well as If it is determined that the information indicates that the first measurement configuration is not accepted for use, it is determined that the first measurement configuration is rejected for use.

14. The second device according to claim 11, wherein the second device is caused to: First information indicating whether the first measurement configuration is accepted for use is transmitted to the first device.

15. The second apparatus according to any one of claims 11 to 14, wherein each of the plurality of measurement configurations comprises a trigger condition corresponding to at least one of the following measurement parameters: Positioning reference signal processing window, Positioning reference signal processing window repetition period, or A minimum number of third devices transmitting a sidelink reference signal for said sidelink positioning.

16. The second apparatus according to any one of claims 11 to 14, wherein the first apparatus comprises a target terminal device, the second apparatus comprises a server terminal device or a location management function device, and the third apparatus comprises an anchor terminal device.

17. A third device for communication, comprising: at least one processor; as well as at least one memory storing instructions that, when executed by the at least one processor, cause the third device to at least: receiving, from the second apparatus, an indication of a first measurement configuration, the first measurement configuration being determined from a plurality of measurement configurations for sidelink positioning of the first apparatus in response to a first trigger condition being satisfied, wherein the first trigger condition corresponds to the first measurement configuration and is defined in the plurality of measurement configurations; as well as Information indicating whether the first measurement configuration is accepted for use is transmitted to the second device.

18. The third device according to claim 17, wherein the third device is configured to: receiving an indication of the first measurement configuration from a first device; and Second information indicating whether the first measurement configuration is accepted for use is transmitted to the first device.

19. The third apparatus according to claim 17 or 18, wherein each of the plurality of measurement configurations comprises a trigger condition corresponding to at least one of the following measurement parameters: Positioning reference signal processing window, Positioning reference signal processing window repetition period, or A minimum number of third devices transmitting a sidelink reference signal for said sidelink positioning.

20. The third device according to claim 17 or 18, wherein the third device is configured to: If it is determined that the first measurement configuration is accepted for use, a sidelink reference signal for the sidelink positioning is transmitted based on the first measurement configuration.

21. The third apparatus according to claim 17 or 18, wherein the first apparatus comprises a target terminal device, the second apparatus comprises a server terminal device or a location management function device, and the third apparatus comprises an anchor terminal device.

22. A method for communication, comprising: receiving, from a second device, a plurality of measurement configurations for sidelink positioning; as well as If it is determined that a first trigger condition defined in the multiple measurement configurations is satisfied, a first measurement configuration corresponding to the first trigger condition is determined from the multiple measurement configurations.

23. A method for communication, comprising: transmitting a plurality of measurement configurations of measurement parameters for sidelink positioning to the first device; as well as An indication of a first measurement configuration is received from the first device, the first measurement configuration being determined from a plurality of measurement configurations for sidelink positioning in response to a first trigger condition being satisfied, wherein the first trigger condition corresponds to the first measurement configuration and is defined in the plurality of measurement configurations.

24. A method for communication, comprising: receiving, from the second apparatus, an indication of a first measurement configuration, the first measurement configuration being determined from a plurality of measurement configurations for sidelink positioning of the first apparatus in response to a first trigger condition being satisfied, wherein the first trigger condition corresponds to the first measurement configuration and is defined in the plurality of measurement configurations; as well as Information indicating whether the first measurement configuration is accepted for use is transmitted to the second device.

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