CN117956573A

CN117956573A - Method and device used for positioning

Info

Publication number: CN117956573A
Application number: CN202211344907.0A
Authority: CN
Inventors: 刘瑾; 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2024-04-30
Also published as: WO2024093837A1

Abstract

The application discloses a method and a device used for positioning. The first node measuring a first channel busy ratio over a first set of reference signal resources within a first time window; determining whether to transmit a first positioning reference signal on a first time domain resource block; the first resource pool comprises Q reference signal resource sets, the number of resource elements occupied by any two reference signal resources in any one of the Q reference signal resource sets is equal, and the number of resource elements occupied by any one of the Q reference signal resource sets respectively belongs to two reference signal resources in the two reference signal resource sets is unequal; the first reference signal resource group belongs to one of the Q reference signal resource sets; the first channel busy ratio is used to determine whether to transmit the first positioning reference signal. The application aims at the characteristics of positioning reference signal resources, effectively solves congestion control of the positioning reference signals and improves positioning accuracy.

Description

Method and device used for positioning

Technical Field

The present application relates to a transmission method and apparatus in a wireless communication system, and more particularly, to a positioning-related scheme and apparatus in wireless communication.

Background

Positioning is an important application in the field of wireless communications; the V2X (Vehicle to everything, vehicle to the outside) or the industrial Internet of things and other new applications, the positioning precision or the positioning delay are required to be higher. In the 3GPP (3 rd Generation Partner Project, third generation partnership project) RAN (RadioAccess Network ) #94e conference, a subject of study on positioning enhancement is standing.

Disclosure of Invention

According to the work plan in NRRELEASE-18 (Rel-18), NRRel-18 requires enhanced Positioning techniques to support sidelink Positioning (Sidelink Positioning, SL Positioning), where the dominant sidelink Positioning techniques include SLRTT based techniques, SLAOA, SL TDOA and SLAOD, etc., and the implementation of these techniques all require reliance on measurements of SL PRS (Sidelink Positioning REFERENCE SIGNAL, sidelink Positioning reference signals). Since the UE (User Equipment) autonomously selects resources for transmission SLPRS, a conventional procedure for positioning or a location information feedback scheme needs to be further enhanced.

In view of the above, the present application discloses a positioning solution. It should be noted that, in the description of the present application, only a V2X scene is taken as a typical application scene or example; the application is also applicable to scenes other than V2X facing similar problems, such as Public security (Public Safety), industrial Internet of things and the like, and achieves technical effects similar to those in NRV2X scenes. Furthermore, although the motivation of the present application is directed to a scenario in which the sender of the wireless signal for positioning measurement is mobile, the present application is still applicable to a scenario in which the sender of the wireless signal for positioning measurement is fixed, such as RSU (Road Side Unit) or the like. The adoption of unified solutions for different scenarios also helps to reduce hardware complexity and cost. Embodiments in any one node of the application and features in embodiments may be applied to any other node without conflict. The embodiments of the application and the features of the embodiments may be combined with each other arbitrarily without conflict.

Reference may be made to 3GPP standards TS38.211, TS38.212, TS38.213, TS38.214, TS38.215, TS38.321, TS38.331, TS38.305, TS37.355 as needed to aid in the understanding of the application.

The application discloses a method used in a first node of wireless communication, which is characterized by comprising the following steps:

Measuring a first channel busy ratio (Channel Busy Ratio, CBR) over a first set of reference signal resources within a first time window;

Determining whether to transmit a first positioning reference signal on a first time domain resource block;

The first Resource pool comprises Q reference signal Resource sets, any one of the Q reference signal Resource sets comprises a plurality of reference signal resources, the number of Resource Elements (REs) occupied by any two of the Q reference signal Resource sets is equal, any one of the Q reference signal Resource sets respectively belongs to the number of REs occupied by two of the two reference signal Resource sets is different, and Q is a positive integer greater than 1; the first reference signal resource group comprises a plurality of reference signal resources, the first reference signal resource group belonging to one of the Q reference signal resource sets; the first channel busy ratio is used to determine whether to transmit the first positioning reference signal on the first time domain resource block; the first time domain resource block is used to determine the first time window.

As an embodiment, the problem to be solved by the present application is: in the mode that the UE autonomously selects SLPRS resources, when the resource pool used for transmitting SLPRS is too congested, the UE autonomously selects resources and then directly transmits SLPRS, which causes serious interference to other UEs.

As an embodiment, the problem to be solved by the present application is: in the mode that the UE autonomously selects the SL PRS resources, the SL PRS is transmitted in an excessively congested resource pool, resulting in SLPRS having poor reception effects and thus generating serious measurement errors.

As an embodiment, the problem to be solved by the present application is: since SLPRS occupied resources are discontinuous in the frequency domain, so that the frequency domain resources or time-frequency resources occupied by a plurality of SLPRS resources overlap with each other, the conventional CBR measurement and CR evaluation based on continuous resources cannot reflect SLPRS real congestion conditions.

As an embodiment, the method of the present application is: and establishing a relation between the resources occupied by SLPRS and the RSSI measurement.

As an embodiment, the method of the present application is: and establishing a relation between the reference signal resource set and the RE number occupied by the reference signal resource.

As an embodiment, the method of the present application is: and establishing a relation between the channel busy ratio measurement and the RE number occupied by the reference signal resource.

As an embodiment, the method of the present application is: and establishing a relation between the channel occupation ratio evaluation and the RE number occupied by the reference signal resource.

As one example, the method of the present application facilitates accurate congestion control.

As an example, the method of the present application facilitates efficient transmission of SLPRS.

As one embodiment, the method of the present application addresses achieving efficient SLPRS transmission in a mode where the UE autonomously selects SLPRS resources.

As an embodiment, the application aims at the characteristics of positioning reference signal resources, effectively solves the congestion of the positioning reference signal and improves the positioning accuracy.

According to one aspect of the present application, the above method is characterized in that the Q reference signal resource sets are respectively in one-to-one correspondence with Q levels; the Q grades respectively correspond to Q unequal positive integers; the Q levels are respectively used for determining the RE number occupied by any reference signal resource in the Q reference signal resource sets; the REs occupied by one of the reference signal resources in the set of reference signal resources corresponding to one of the lower levels is a subset of the REs occupied by one of the reference signal resources in the set of reference signal resources corresponding to one of the higher levels.

According to an aspect of the present application, the above method is characterized in that the reference signal resources in any one of the Q reference signal resource sets belong to at least one physical resource block (Physical Resource Block, PRB) in the frequency domain, and the reference signal resources in any one of the Q reference signal resource sets belong to an even number of consecutive multicarrier symbols in the time domain.

According to one aspect of the present application, the above method is characterized in that the first channel busy ratio is a ratio exceeding a first threshold among a plurality of Received Signal Strength Indicators (RSSIs) measured on the plurality of reference signal resources respectively comprised by the first reference signal resource group, and the RSSI measured on any one of the reference signal resources in the first reference signal resource group is a linear average of all received powers observed on all REs comprised by the reference signal resource.

According to one aspect of the present application, the method is characterized by comprising:

Evaluating the first channel occupancy in a second set of reference signal resources within a second time window;

Wherein the first time domain resource block is used to determine the second time window; the second reference signal resource group and the first reference signal resource group belong to the same reference signal resource set; the first channel busy ratio is used to determine the first maximum channel occupancy ratio; the first channel occupancy is not greater than the first maximum channel occupancy is used to determine whether to transmit the first positioning reference signal on the first time domain resource block.

transmitting the first positioning reference signal on the first time domain resource block;

wherein the first channel occupancy ratio is not greater than the first maximum channel occupancy ratio.

According to an aspect of the present application, the above method is characterized in that the first node is a user equipment.

According to an aspect of the present application, the above method is characterized in that the first node is a relay node.

According to one aspect of the present application, the above method is characterized in that the first node is a roadside unit.

The application discloses a method used in a second node of wireless communication, which is characterized by comprising the following steps:

Receiving a first positioning reference signal on a first time domain resource block;

The first resource pool comprises Q reference signal resource sets, any one of the Q reference signal resource sets comprises a plurality of reference signal resources, the RE numbers occupied by any two of the Q reference signal resource sets are equal, any one of the Q reference signal resource sets respectively belongs to the RE numbers occupied by two of the two reference signal resource sets, and Q is a positive integer greater than 1; the resources occupied by the first positioning reference signal include at least one reference signal resource in one of the Q reference signal resource sets; the first time domain resource block belongs to a time domain resource occupied by the first resource pool; the first positioning reference signal is used to generate first position information (Location Information).

According to an aspect of the present application, the above method is characterized in that the second node is a user equipment.

According to an aspect of the present application, the above method is characterized in that the second node is a relay node.

According to an aspect of the present application, the above method is characterized in that the second node is a roadside unit.

The application discloses a first node used for wireless communication, which is characterized by comprising the following components:

a first receiver measuring a first channel busy ratio over a first set of reference signal resources within a first time window;

A first processor determining whether to transmit a first positioning reference signal on a first time domain resource block;

the first resource pool comprises Q reference signal resource sets, any one of the Q reference signal resource sets comprises a plurality of reference signal resources, the RE numbers occupied by any two of the Q reference signal resource sets are equal, any one of the Q reference signal resource sets respectively belongs to the RE numbers occupied by two of the two reference signal resource sets, and Q is a positive integer greater than 1; the first reference signal resource group comprises a plurality of reference signal resources, the first reference signal resource group belonging to one of the Q reference signal resource sets; the first channel busy ratio is used to determine whether to transmit the first positioning reference signal on the first time domain resource block; the first time domain resource block is used to determine the first time window.

The present application discloses a second node used for wireless communication, which is characterized by comprising:

a second receiver that receives a first positioning reference signal on a first time domain resource block;

The first resource pool comprises Q reference signal resource sets, any one of the Q reference signal resource sets comprises a plurality of reference signal resources, the RE numbers occupied by any two of the Q reference signal resource sets are equal, any one of the Q reference signal resource sets respectively belongs to the RE numbers occupied by two of the two reference signal resource sets, and Q is a positive integer greater than 1; the resources occupied by the first positioning reference signal include at least one reference signal resource in one of the Q reference signal resource sets; the first time domain resource block belongs to a time domain resource occupied by the first resource pool; the first positioning reference signal is used to generate first position information.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings in which:

FIG. 1 illustrates a process flow diagram of a first node according to one embodiment of the application;

FIG. 2 shows a schematic diagram of a network architecture according to one embodiment of the application;

fig. 3 shows a schematic diagram of a radio protocol architecture of a user plane and a control plane according to an embodiment of the application;

FIG. 4 shows a schematic diagram of a first communication device and a second communication device according to one embodiment of the application;

FIG. 5 shows a block diagram of UE positioning according to one embodiment of the application;

fig. 6 shows a wireless signal transmission flow diagram according to one embodiment of the application;

FIG. 7 shows a schematic diagram of a relationship between Q sets of reference signal resources, according to one embodiment of the application;

FIG. 8 shows a schematic diagram of a relationship between Q sets of reference signal resources and Q levels, according to one embodiment of the application;

Fig. 9 shows a schematic diagram of a relationship between a first time domain resource block and a first time window and a second time window according to an embodiment of the present application;

FIG. 10 illustrates a flow chart of determining whether to transmit a first positioning reference signal on a first time domain resource according to one embodiment of the application;

FIG. 11 shows a block diagram of a processing arrangement for use in a first node according to an embodiment of the application;

Fig. 12 shows a block diagram of a processing arrangement for use in a second node according to an embodiment of the application.

Detailed Description

The technical scheme of the present application will be further described in detail with reference to the accompanying drawings, and it should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be arbitrarily combined with each other.

Example 1

Embodiment 1 illustrates a process flow diagram of a first node of one embodiment of the present application, as shown in fig. 1. In fig. 1, each block represents a step.

In embodiment 1, a first node in the present application firstly performs step 101 to measure a first channel busy ratio on a first reference signal resource group within a first time window; step 102 is executed again to determine whether to send the first positioning reference signal on the first time domain resource block; the first resource pool comprises Q reference signal resource sets, any one of the Q reference signal resource sets comprises a plurality of reference signal resources, the RE numbers occupied by any two of the Q reference signal resource sets are equal, any one of the Q reference signal resource sets respectively belongs to the RE numbers occupied by two of the two reference signal resource sets are different, and Q is a positive integer greater than 1; the first reference signal resource group comprises a plurality of reference signal resources, the first reference signal resource group belonging to one of the Q reference signal resource sets; the first channel busy ratio is used to determine whether to transmit the first positioning reference signal on the first time domain resource block; the first time domain resource block is used to determine the first time window.

As an embodiment, the first resource pool comprises a sidelink resource pool (SidelinkResource Pool).

As one embodiment, the first resource pool is used for sidelink transmission (SidelinkTransmission).

As one embodiment, the first resource pool is used for sidelink communications (Sidelink Communication).

As one embodiment, the first resource pool is used for sidelink positioning (SidelinkPositioning).

As one embodiment, the first resource pool is used for sidelink location reference signal (SidelinkPositioning REFERENCE SIGNAL, SLPRS) transmissions.

As one embodiment, the first resource pool is Dedicated (Dedicated) for SL PRS transmissions.

As an embodiment, the first resource pool is used for SLPRS and sidelink control information (Sidelink Control Information, SCI) transmissions.

As an embodiment, the first resource pool comprises a plurality of resource elements (Resource Elements, REs).

As an embodiment, any RE in the first resource pool occupies one multicarrier symbol in the time domain and one subcarrier (Subcarrier) in the frequency domain.

As an embodiment, the first resource pool comprises a plurality of time-frequency resource blocks.

As an embodiment, any one of the plurality of time-frequency resource blocks included in the first resource pool includes a plurality of REs.

As an embodiment, the first resource pool comprises a plurality of time domain resource blocks in the time domain.

As an embodiment, the first resource pool comprises a plurality of frequency domain resource blocks in the frequency domain.

As an embodiment, the time domain resource occupied by any one of the plurality of time-frequency resource blocks included in the first resource pool in the time domain is one of the plurality of time-domain resource blocks included in the time domain by the first resource pool.

As an embodiment, the time domain resources occupied by the plurality of time-frequency resource blocks included in the first resource pool in the time domain are the plurality of time domain resource blocks included in the first resource pool in the time domain, respectively.

As an embodiment, the frequency domain resource occupied by any one of the plurality of time-frequency resource blocks included in the first resource pool in the frequency domain is one of the plurality of frequency domain resource blocks included in the first resource pool in the frequency domain.

As an embodiment, the frequency domain resources occupied by the plurality of time-frequency resource blocks included in the first resource pool in the frequency domain are the plurality of frequency domain resource blocks included in the first resource pool in the frequency domain, respectively.

As an embodiment, the time domain resource occupied by any one of the plurality of time-frequency resource blocks included in the first resource pool in the time domain belongs to one time domain resource block in the first resource pool, and the frequency domain resource occupied by any one of the plurality of time-frequency resource blocks included in the first resource pool in the frequency domain belongs to one frequency domain resource block in the first resource pool.

As an embodiment, the plurality of time domain resource blocks included in the time domain by the first resource pool are a plurality of slots, respectively.

As an embodiment, the plurality of time domain resource blocks included in the time domain by the first resource pool are a plurality of multicarrier symbols, respectively.

As an embodiment, any one of the plurality of time domain resource blocks included in the time domain by the first resource pool belongs to one slot.

As an embodiment, any one of the plurality of time domain resource blocks included in the time domain by the first resource pool includes at least one multicarrier symbol.

As an embodiment, the plurality of frequency domain resource blocks comprised by the first resource pool in the frequency domain are a plurality of sub-channels (Subchannel), respectively.

As an embodiment, the plurality of frequency domain Resource Blocks included in the frequency domain by the first Resource pool are a plurality of Resource Blocks (RBs), respectively.

As an embodiment, the plurality of frequency domain resource blocks included in the frequency domain by the first resource pool are a plurality of physical resource blocks (Physical Resource Blocks, PRBs), respectively.

As an embodiment, any one of the plurality of frequency domain resource blocks included in the frequency domain by the first resource pool belongs to one sub-channel.

As an embodiment, any one of the plurality of frequency domain resource blocks included in the frequency domain by the first resource pool belongs to one RB.

As an embodiment, any one of the plurality of frequency domain resource blocks included in the frequency domain by the first resource pool belongs to one PRB.

As an embodiment, any one of the plurality of frequency domain resource blocks included in the frequency domain by the first resource pool includes at least one subcarrier.

As an embodiment, any one of the plurality of frequency domain resource blocks included in the frequency domain by the first resource pool includes at least one RB.

As an embodiment, any one of the plurality of frequency domain resource blocks included in the frequency domain by the first resource pool includes at least one PRB.

As an embodiment, the plurality of time domain resource blocks included in the time domain by the first resource pool are a plurality of time slots, and the plurality of frequency domain resource blocks included in the frequency domain by the first resource pool are a plurality of PRBs, respectively.

As an embodiment, the multi-carrier symbol is an OFDM (Orthogonal Frequency Division Multiplexing ) symbol.

As an embodiment, the multi-carrier symbol is an SC-FDMA (Single-carrier-frequency division multiple access) symbol.

As an embodiment, the multi-carrier symbol is a DFT-S-OFDM (Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing ) symbol.

As an embodiment, the multicarrier symbol is an IFDMA (INTERLEAVED FREQUENCY DIVISION MULTIPLEACCESS ) symbol.

As an embodiment, the first resource pool comprises Q reference signal resource sets, any one of the Q reference signal resource sets comprising a plurality of reference signal resources.

As one embodiment, any one of the plurality of reference signal resources included in any one of the Q sets of reference signal resources is used to transmit a sidelink reference signal (SIDELINKREFERENCE SIGNAL, SLRS).

As one embodiment, any one of the plurality of reference signal resources included in any one of the Q sets of reference signal resources is used to transmit a sidelink positioning reference signal (SidelinkPositioning REFERENCE SIGNAL, SL PRS).

As an embodiment, any one of the plurality of reference signal resources included in any one of the Q sets of reference signal resources is configured for transmission of a SL RS.

As an embodiment, any one of the plurality of reference signal resources included in any one of the Q sets of reference signal resources is configured for transmission of SL PRS.

As an embodiment, the SL RS includes a SL CSI-RS (CHANNEL STATE Informaiton REFERENCE SIGNAL, channel state information reference signal).

As an embodiment, the SLRS includes SLDMRS (Demodulation REFERENCE SIGNAL ).

As an embodiment, the SLDMRS includes a PSCCH (PHYSICAL SIDELINK Control Channel ) DMRS.

As an embodiment, the SLDMRS includes a PSSCH (PHYSICAL SIDELINK SHARED CHANNEL ) DMRS.

As one embodiment, the SLRS includes a S-PSS (SLPRIMARY SYNCHRONIZATION SIGNAL, sidelink primary synchronization signal).

As one embodiment, the SLRS includes S-SSS (SL Secondary Synchronization Signal, sidelink secondary synchronization signal).

As an embodiment, any one of the plurality of reference signal resources included in any one of the Q sets of reference signal resources includes a plurality of REs.

As an embodiment, the time-frequency resource occupied by any one of the plurality of reference signal resources included in any one of the Q sets of reference signal resources includes a plurality of REs.

As an embodiment, the first alternative reference signal resource is any one of the plurality of reference signal resources comprised by any one of the Q sets of reference signal resources.

As an embodiment, the first alternative reference signal resource comprises a time-frequency resource occupied by the first alternative reference signal resource.

As an embodiment, the first alternative reference signal resource includes a code domain resource corresponding to the first alternative reference signal resource.

As an embodiment, the first alternative reference signal resource includes a time-frequency resource occupied by the first alternative reference signal resource and a code domain resource corresponding to the first alternative reference signal resource.

As an embodiment, the code domain resource corresponding to the first alternative reference signal resource is a sequence adopted in the first alternative reference signal resource.

As an embodiment, the code domain resource corresponding to the first alternative reference signal resource is a sequence adopted by a reference signal transmitted on the first alternative reference signal resource.

As an embodiment, the time-frequency resource occupied by the first alternative reference signal resource includes a time-domain resource occupied by the first alternative reference signal resource in a time domain.

As an embodiment, the time-frequency resource occupied by the first alternative reference signal resource includes a frequency domain resource occupied by the first alternative reference signal resource in a frequency domain.

As an embodiment, the time-frequency resource occupied by the first alternative reference signal resource includes a time domain resource occupied by the first alternative reference signal resource in a time domain and a frequency domain resource occupied by the first alternative reference signal resource in a frequency domain.

As an embodiment, the time-frequency resource occupied by the first alternative reference signal resource belongs to the first resource pool.

As an embodiment, the time domain resource occupied by the first alternative reference signal resource in the time domain belongs to the first resource pool.

As an embodiment, the frequency domain resource occupied by the first alternative reference signal resource in the frequency domain belongs to the first resource pool.

As an embodiment, the time-frequency resource occupied by the first alternative reference signal resource comprises a plurality of REs.

As an embodiment, the time-frequency resource occupied by the first alternative reference signal resource includes the plurality of REs belonging to the first resource pool.

As an embodiment, the time-frequency resources occupied by the first alternative reference signal resource comprise at least one time-frequency resource block in the first resource pool.

As an embodiment, the time-frequency resources occupied by the first alternative reference signal resource belong to at least one time-frequency resource block in the first resource pool.

As an embodiment, the time domain resources occupied by the first alternative reference signal resource in the time domain include at least one time domain resource block in the first resource pool.

As an embodiment, the time domain resource occupied by the first alternative reference signal resource in the time domain belongs to at least one time domain resource block in the first resource pool.

As an embodiment, the frequency domain resources occupied by the first alternative reference signal resource in the frequency domain include at least one frequency domain resource block in the first resource pool.

As an embodiment, the frequency domain resource occupied by the first alternative reference signal resource in the frequency domain belongs to at least one frequency domain resource block in the first resource pool.

As an embodiment, the time domain resource occupied by the first alternative reference signal resource in the time domain includes a plurality of multicarrier symbols.

As an embodiment, the time domain resource occupied by the first alternative reference signal resource in the time domain includes at least one slot.

As an embodiment, the time domain resource occupied by the first alternative reference signal resource in the time domain belongs to one time slot.

As an embodiment, the time domain resource occupied by the first alternative reference signal resource in the time domain includes a plurality of multicarrier symbols in one slot.

As an embodiment, the frequency domain resource occupied by the first alternative reference signal resource in the frequency domain includes a plurality of subcarriers.

As an embodiment, the frequency domain resource occupied by the first alternative reference signal resource in the frequency domain includes at least one RB.

As an embodiment, the frequency domain resources occupied by the first alternative reference signal resources in the frequency domain include at least one PRB.

As an embodiment, the frequency domain resource occupied by the first alternative reference signal resource in the frequency domain includes at least one subshannel.

As an embodiment, the frequency domain resource occupied by the first alternative reference signal resource in the frequency domain belongs to one RB.

As an embodiment, the frequency domain resource occupied by the first alternative reference signal resource in the frequency domain belongs to one PRB.

As an embodiment, the frequency domain resource occupied by the first alternative reference signal resource in the frequency domain belongs to a subshannel.

As an embodiment, the frequency domain resource occupied by the first alternative reference signal resource in the frequency domain includes a plurality of subcarriers in one subshannel.

As an embodiment, the frequency domain resource occupied by the first alternative reference signal resource in the frequency domain includes a plurality of subcarriers in one PRB.

As an embodiment, the first resource pool comprises a first reference signal resource group comprising a plurality of reference signal resources.

As an embodiment, the first reference signal resource group belongs to one of the Q reference signal resource sets.

As an embodiment, one of the Q sets of reference signal resources includes the first set of reference signal resources.

As an embodiment, any one of the plurality of reference signal resources included in the first reference signal resource group belongs to one of the Q reference signal resource sets.

As an embodiment, one of the Q sets of reference signal resources includes any one of the plurality of reference signal resources included in the first reference signal resource group.

As an embodiment, any one of the plurality of reference signal resources included in the first reference signal resource group is one of the Q reference signal resource sets.

As an embodiment, the first set of alternative reference signal resources is one of the Q sets of reference signal resources.

As an embodiment, the first set of reference signal resources belongs to the first set of alternative reference signal resources.

As an embodiment, the first set of alternative reference signal resources comprises the first set of reference signal resources.

As an embodiment, the plurality of reference signal resources comprised by the first reference signal resource group all belong to the first set of alternative reference signal resources.

As an embodiment, any one of the plurality of reference signal resources included in the first reference signal resource group is one of the first set of alternative reference signal resources.

As an embodiment, the first Positioning reference signal is used for Positioning (Positioning).

As one embodiment, the first positioning reference signal is used for sidelink positioning (SidelinkPositioning).

As an embodiment, the first positioning reference signal is used to obtain a transmit-receive time difference (Rx-Tx TIME DIFFERENCE).

As an embodiment, the first positioning reference signal is used to obtain a sidelink transit time difference (Sidelink Rx-Tx TIME DIFFERENCE).

As an embodiment, the first positioning reference signal is used to obtain a UE transmit receive time difference (UE Rx-Tx TIME DIFFERENCE).

As an embodiment, the first positioning reference signal is used to obtain the reception timing of the first positioning reference signal.

As an embodiment, the first positioning reference signal is used by a receiver of the first positioning reference signal to obtain a reception timing of one subframe.

As an embodiment, the first positioning reference signal is used by a receiver of the first positioning reference signal to obtain a reception timing of one slot.

As one embodiment, the first positioning reference signal is used for positioning measurements (Positioning measurement).

As one embodiment, the first positioning reference signal is used for sidelink positioning measurements (Sidelinkpositioningmeasurement).

As an embodiment, the first positioning reference signal is used to obtain an AoA (Angle-of-Arrival).

As an embodiment, the first positioning reference signal is used to obtain RSRP (REFERENCE SIGNAL ReceivedPower ).

As an embodiment, the first positioning reference signal is used to derive RSRPP (REFERENCE SIGNAL RECEIVEDPATH Power, reference signal receive path Power).

As an embodiment, the first positioning reference signal is used to obtain RSTD (REFERENCE SIGNAL TIME DIFFERENCE ).

As an embodiment, the first positioning reference signal is used to derive RTOA (RELATIVE TIME ofArrival, relative arrival time).

As an embodiment, the first positioning reference signal is used to obtain SL-RTOA.

As an embodiment, the first positioning reference signal is used for RTT positioning.

As an embodiment, the first positioning reference signal is used for Single-side RTT positioning.

As an embodiment, the first positioning reference signal is used for Double-sided RTT positioning.

As an embodiment, the first positioning reference signal is used to derive first position information (Location Information).

As an embodiment, the first positioning reference signal is configured by an LMF (Location ManagementFunction ).

As an embodiment, the first positioning reference signal is gcb (g-Node-B) configured.

As an embodiment, the first positioning reference signal is configured by a Cell (Cell).

As an embodiment, the first positioning reference signal is configured by one UE.

As one embodiment, the first positioning reference signal comprises a sidelink reference signal (SIDELINKREFERENCE SIGNAL, SLRS).

As an embodiment, the first positioning reference signal comprises a sidelink positioning reference signal (Sidelink Positioning REFERENCE SIGNAL, SL PRS).

As an embodiment, the first positioning reference signal includes a Sounding reference signal (Sounding REFERENCE SIGNAL, SRS).

As one embodiment, the first positioning reference signal comprises a secondary link primary synchronization signal (SIDELINK PRIMARY Synchronization Signal, S-PSS).

As one embodiment, the first positioning reference signal comprises a sidelink secondary synchronization signal (Sidelink Secondary Synchronization Signal, S-SSS).

As an embodiment, the first positioning reference signal includes a physical sidelink broadcast channel demodulation reference signal (PHYSICAL SIDELINK Broadcast Channel Demodulation REFERENCE SIGNAL, PSBCH DMRS).

As an embodiment, the first positioning reference signal comprises a sidelink channel state Information-reference signal (SIDELINK CHANNEL STATE Information-REFERENCE SIGNAL, SL CSI-RS).

As an embodiment, the first positioning reference signal comprises a first sequence.

As an embodiment, a first sequence is used to generate the first positioning reference signal.

As an embodiment, the first Sequence is a Pseudo-Random Sequence (Pseudo-Random Sequence).

As an example, the first Sequence is a Low peak to average power ratio Sequence (Low-PAPR Sequence, low-Peak toAverage Power Ratio).

As an embodiment, the first sequence is a Gold sequence.

As one embodiment, the first sequence is an M sequence.

As an embodiment, the first sequence is a ZC (Zadeoff-Chu) sequence.

As an embodiment, the first sequence is sequentially subjected to sequence Generation (Sequence Generation), discrete fourier transform (Discrete Fourier Transform, DFT), modulation (Modulation) and Resource unit mapping (Resource ELEMENT MAPPING), and the first positioning reference signal is obtained after wideband symbol Generation (Generation).

As an embodiment, the first sequence is sequentially subjected to sequence generation, resource unit mapping and wideband symbol generation to obtain the first positioning reference signal.

As an embodiment, the time-frequency resource occupied by the first positioning reference signal includes a plurality of REs.

As an embodiment, the time-frequency resource occupied by the first positioning reference signal belongs to the first resource pool.

As an embodiment, the first positioning reference signal occupies at least one reference signal resource of the Q sets of reference signal resources.

As an embodiment, at least one reference signal resource of the Q sets of reference signal resources is used for transmitting the first positioning reference signal.

As an embodiment, the first positioning reference signal occupies one reference signal resource of the Q sets of reference signal resources.

As an embodiment, one reference signal resource of the Q sets of reference signal resources is used for transmitting the first positioning reference signal.

As an embodiment, the first reference signal resource is a resource occupied by the first positioning reference signal.

As an embodiment, the first positioning reference signal occupies a first reference signal resource.

As an embodiment, a first reference signal resource is used for transmitting the first positioning reference signal.

As an embodiment, a first reference signal resource is configured to the first positioning reference signal.

As an embodiment, the first reference signal resource comprises at least one reference signal resource.

As an embodiment, the first reference signal resource comprises a plurality of REs.

As an embodiment, any one of the at least one reference signal resource comprised by the first reference signal resource comprises a plurality of REs.

As an embodiment, the first reference signal resource comprises at least one reference signal resource of the Q sets of reference signal resources.

As an embodiment, the first reference signal resource is one of the Q sets of reference signal resources.

As an embodiment, the first reference signal resource comprises at least one reference signal resource of one of the Q sets of reference signal resources.

As an embodiment, the first reference signal resource and any reference signal resource in the first reference signal resource group belong to the same reference signal resource set of the Q reference signal resource sets.

As an embodiment, the at least one reference signal resource included in the first reference signal resource and any reference signal resource in the first reference signal resource group belong to the same reference signal resource set of Q reference signal resource sets.

As an embodiment, the first reference signal resource and any reference signal resource in the first reference signal resource group belong to the first set of alternative reference signal resources.

As an embodiment, the at least one reference signal resource comprised by the first reference signal resource and any reference signal resource in the first reference signal resource group belong to the first set of alternative reference signal resources.

As an embodiment, the first reference signal resource comprises at least one reference signal resource of the first set of alternative reference signal resources.

As an embodiment, any one of the at least one reference signal resource comprised by the first reference signal resource is one of the first set of alternative reference signal resources.

As an embodiment, the first reference signal resource is one of the first set of alternative reference signal resources.

As an embodiment, the first reference signal resource does not belong to the first reference signal resource group.

As an embodiment, the first reference signal resource group does not comprise the first reference signal resource.

As an embodiment, the first reference signal resource is different from any one of the first reference signal resource group.

As an embodiment, any one of the at least one reference signal resource included in the first reference signal resource is different from any one of the first reference signal resource group.

As an embodiment, the first reference signal resource belongs to the first reference signal resource group.

As an embodiment, the first reference signal resource group comprises the first reference signal resource.

As an embodiment, the first reference signal resource comprises at least one reference signal resource of the first reference signal resource group.

As an embodiment, any one of the at least one reference signal resource comprised by the first reference signal resource is one of the first reference signal resource group.

As an embodiment, the first reference signal resource is one reference signal resource of the first reference signal resource group.

As an embodiment, the first sequence is mapped onto the plurality of REs included in the time-frequency resource occupied by the first positioning reference signal.

As an embodiment, the first sequence is mapped onto the first reference signal resource.

As an embodiment, the first sequence is mapped onto the at least one reference signal resource comprised by the first reference signal resource.

As an embodiment, the first sequence is mapped onto a plurality of REs occupied by the first reference signal resource.

As one embodiment, the first location information is reported to an LMF (Location ManagementFunction ).

As an embodiment, the first location information is transmitted to a sender of the first location reference signal.

As an embodiment, the first location information is reported to an LMF via a sender of the first location reference signal.

As an embodiment, the first location information is transmitted to a first node in the present application.

As an embodiment, the first location information is reported to an LMF via the first node in the present application.

As an embodiment, the first location information is used to determine RTT (RoundTrip Time ).

As an embodiment, the first location information is used by an LMF to determine RTT.

As an embodiment, the first location information is used for positioning (positioning).

As one embodiment, the first location information is used for location-related measurements (Location relatedmeasurement).

As one embodiment, the first location information is used for sidelink location (Sidelinkpositioning).

As one embodiment, the first location information is used to determine a propagation delay (Propagation Delay).

As one embodiment, the first location information is used by the LMF to determine propagation delay.

As an embodiment, the first location information is used for RTT positioning.

As an embodiment, the first location information is used for Single-side RTT positioning.

As an embodiment, the first location information is used for Double-sided RTT positioning.

As an embodiment, the first location information is used for Multi-RTT (Multiple-RoundTrip Time) positioning.

As an embodiment, the first location information comprises a first transit time difference.

As an embodiment, measuring the first positioning reference signal results in the first time difference of reception.

As an embodiment, measuring the first positioning reference signal results in the first position information.

As an embodiment, the first time difference of reception is used to generate the first location information.

As one embodiment, the first location information includes a location-related measurement (Location relatedmeasurements).

As one embodiment, the first location information comprises a location estimate (Location estimate).

As an embodiment, the first location information comprises positioning assistance data (ASSISTANCE DATA).

As one embodiment, the first location information includes a time quality (TimingQuality).

As one embodiment, the first location information includes a receive beam index (RxBeamIndex).

As an embodiment, the first location information includes received power information.

As an embodiment, the first location information is used for Transfer (Transfer) NAS (Non-Access-Stratum) specific information.

As an embodiment, the first location information is used to transfer timing information of a clock.

As an embodiment, the received Power information includes RSRP (REFERENCE SIGNAL RECEIVED Power ) of the first positioning reference signal.

As an embodiment, the received power information includes RSRPP (REFERENCE SIGNAL RECEIVED PathPower ) of the first positioning reference signal.

As an embodiment, the received power information comprises RSRP result difference (RSRP-ResultDiff).

As one embodiment, the unit of the received power information is dBm (decibel milli).

As one embodiment, the unit of the received power information is dB (decibel).

As an embodiment, the first transit time difference comprises RSTD (REFERENCE SIGNAL TIME DIFFERENCE, reference signal time power).

As an embodiment, the first transit time difference comprises a sidelink transit time difference.

As an embodiment, the first transmit-receive time difference comprises a UE transmit-receive time difference.

As an embodiment, the first time difference of reception and transmission includes RxTxTimeDiff (time difference of reception and transmission).

As an embodiment, the first transmission/reception time difference includes SL-RxTxTimeDiff (sidelink reception transmission time difference).

As an embodiment, the first transit time difference comprises RTOA (RELATIVE TIME ofArrival, relative arrival time).

As an embodiment, the first transit time difference comprises SL-RTOA.

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture according to one embodiment of the application, as shown in fig. 2. Fig. 2 illustrates V2X communication architecture under 5G NR (New Radio), LTE (Long-Term Evolution) and LTE-a (Long-Term Evolution Advanced, enhanced Long-Term Evolution) system architecture. The 5G NR or LTE network architecture may be referred to as 5GS (5 GSystem)/EPS (Evolved PACKET SYSTEM) or some other suitable terminology.

The V2X communication architecture of embodiment 2 includes UE (User Equipment) 201, UE241, ng-RAN (next generation radio access network) 202,5GC (5G Core Network)/EPC (Evolved Packet Core, evolved packet core) 210, hss (Home Subscriber Server )/UDM (Unified DATA MANAGEMENT) 220, proSe function 250, and ProSe application server 230. The V2X communication architecture may be interconnected with other access networks, but these entities/interfaces are not shown for simplicity. As shown, the V2X communication architecture provides packet-switched services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this disclosure may be extended to networks providing circuit-switched services or other cellular networks. The NG-RAN includes NR node bs (gnbs) 203 and other gnbs 204. The gNB203 provides user and control plane protocol termination towards the UE 201. The gNB203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a transmitting receiving node (TRP), or some other suitable terminology. The gNB203 provides the UE201 with an access point to the 5GC/EPC210. Examples of UE201 include a cellular telephone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a Personal Digital Assistant (PDA), a satellite radio, a non-terrestrial base station communication, a satellite mobile communication, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, an drone, an aircraft, a narrowband internet of things device, a machine-type communication device, a land-based vehicle, an automobile, a wearable device, or any other similar functional device. Those of skill in the art may also refer to the UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology. gNB203 is connected to 5GC/EPC210 through an S1/NG interface. The 5GC/EPC210 includes MME (Mobility MANAGEMENT ENTITY )/AMF (Authentication MANAGEMENT FIELD, authentication management domain)/SMF (Session Management Function ) 211, other MME/AMF/SMF214, S-GW (SERVICE GATEWAY, serving Gateway)/UPF (UserPlaneFunction), 212, and P-GW (PACKET DATE Network Gateway)/UPF 213. The MME/AMF/SMF211 is a control node that handles signaling between the UE201 and the 5GC/EPC210. In general, the MME/AMF/SMF211 provides bearer and connection management. All user IP (Internet Protocal, internet protocol) packets are transported through the S-GW/UPF212, which S-GW/UPF212 itself is connected to the P-GW/UPF213. The P-GW provides UE IP address assignment as well as other functions. The P-GW/UPF213 is connected to the internet service 230. Internet services 230 include operator-corresponding internet protocol services, which may include, in particular, the internet, intranets, IMS (IP Multimedia Subsystem ) and packet-switched streaming services. The ProSe function 250 is a logic function for network related behavior required for a ProSe (Proximity-based Service); including DPF (Direct Provisioning Function, direct provision Function), direct Discovery name management Function (Direct Discovery NAME MANAGEMENT Function), EPC level Discovery ProSe Function (EPC-level Discovery ProSe Function), and the like. The ProSe application server 230 has the functions of storing EPC ProSe user identities, mapping between application layer user identities and EPC ProSe user identities, allocating ProSe-restricted code suffix pools, etc.

As an embodiment, the UE201 and the UE241 are connected through a PC5 reference point (REFERENCE POINT).

As an embodiment, the ProSe function 250 is connected to the UE201 and the UE241 through PC3 reference points, respectively.

As an embodiment, the ProSe function 250 is connected to the ProSe application server 230 via a PC2 reference point.

As an embodiment, the ProSe application server 230 is connected to the ProSe application of the UE201 and the ProSe application of the UE241 via PC1 reference points, respectively.

As an embodiment, the first node in the present application is the UE201, and the second node in the present application is the UE241.

As an embodiment, the first node in the present application is the UE241, and the second node in the present application is the UE201.

As an embodiment, the radio link between the UE201 and the UE241 corresponds to a sidelink (Sidelink, SL) in the present application.

As an embodiment, the radio link from the UE201 to the NR node B is an uplink.

As an embodiment, the radio link from the NR node B to the UE201 is a downlink.

As an embodiment, the UE201 supports SL transmission.

As an embodiment, the UE241 supports SL transmissions.

As an embodiment, the gNB203 is a macro cell (MarcoCellular) base station.

As one example, the gNB203 is a Micro Cell (Micro Cell) base station.

As an embodiment, the gNB203 is a pico cell (PicoCell) base station.

As an example, the gNB203 is a home base station (Femtocell).

As an embodiment, the gNB203 is a base station device supporting a large delay difference.

As an example, the gNB203 is an RSU (Road Side Unit).

As one embodiment, the gNB203 includes a satellite device.

Example 3

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture of a user plane and a control plane according to the application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane 350 and the control plane 300, fig. 3 shows the radio protocol architecture for the control plane 300 for a first node device (RSU in UE or V2X, in-vehicle device or in-vehicle communication module) and a second node device (gNB, RSU in UE or V2X, in-vehicle device or in-vehicle communication module), or between two UEs, in three layers: layer 1, layer 2 and layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY301. Layer 2 (L2 layer) 305 is above PHY301 and is responsible for the links between the first node device and the second node device and the two UEs through PHY301. The L2 layer 305 includes a MAC (MediumAccess Control ) sublayer 302, an RLC (Radio Link Control, radio link layer control protocol) sublayer 303, and a PDCP (PACKETDATA CONVERGENCE PROTOCOL ) sublayer 304, which terminate at the second node device. The PDCP sublayer 304 provides data ciphering and integrity protection, and the PDCP sublayer 304 also provides handover support for the first node device to the second node device. The RLC sublayer 303 provides segmentation and reassembly of data packets, retransmission of lost data packets by ARQ, and RLC sublayer 303 also provides duplicate data packet detection and protocol error detection. The MAC sublayer 302 provides mapping between logical and transport channels and multiplexing of logical channels. The MAC sublayer 302 is also responsible for allocating the various radio resources (e.g., resource blocks) in one cell among the first node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control ) sublayer 306 in layer 3 (L3 layer) in the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling between the second node device and the first node device. The radio protocol architecture of the user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer), and the radio protocol architecture for the first node device and the second node device in the user plane 350 is substantially the same for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355 as the corresponding layers and sublayers in the control plane 300, but the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead. Also included in the L2 layer 355 in the user plane 350 is an SDAP (Service DataAdaptation Protocol ) sublayer 356, the SDAP sublayer 356 being responsible for mapping between QoS flows and data radio bearers (DRBs, data Radio Bearer) to support diversity of traffic. Although not shown, the first node apparatus may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., remote UE, server, etc.).

As an embodiment, the radio protocol architecture in fig. 3 is applicable to the first node in the present application.

As an embodiment, the radio protocol architecture in fig. 3 is applicable to the second node in the present application.

As an embodiment, the first positioning reference signal in the present application is generated in the PHY301.

Example 4

Embodiment 4 shows a schematic diagram of a first communication device and a second communication device according to the application, as shown in fig. 4. Fig. 4 is a block diagram of a first communication device 410 and a second communication device 450 in communication with each other in an access network.

The first communication device 410 includes a controller/processor 475, a memory 476, a receive processor 470, a transmit processor 416, a multi-antenna receive processor 472, a multi-antenna transmit processor 471, a transmitter/receiver 418, and an antenna 420.

The second communication device 450 includes a controller/processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, a multi-antenna transmit processor 457, a multi-antenna receive processor 458, a transmitter/receiver 454, and an antenna 452.

In the transmission from the first communication device 410 to the second communication device 450, upper layer data packets from the core network are provided to a controller/processor 475 at the first communication device 410. The controller/processor 475 implements the functionality of the L2 layer. In the transmission from the first communication device 410 to the first communication device 450, a controller/processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the second communication device 450 based on various priority metrics. The controller/processor 475 is also responsible for retransmission of lost packets and signaling to the second communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., physical layer). Transmit processor 416 performs coding and interleaving to facilitate Forward Error Correction (FEC) at the second communication device 450, as well as mapping of signal clusters based on various modulation schemes, e.g., binary Phase Shift Keying (BPSK), quadrature Phase Shift Keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM). The multi-antenna transmit processor 471 digitally space-precodes the coded and modulated symbols, including codebook-based precoding and non-codebook-based precoding, and beamforming processing, to generate one or more spatial streams. A transmit processor 416 then maps each spatial stream to a subcarrier, multiplexes with reference signals (e.g., pilots) in the time and/or frequency domain, and then uses an Inverse Fast Fourier Transform (IFFT) to generate a physical channel carrying the time domain multicarrier symbol stream. The multi-antenna transmit processor 471 then performs transmit analog precoding/beamforming operations on the time domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multicarrier symbol stream provided by the multiple antenna transmit processor 471 to a radio frequency stream and then provides it to a different antenna 420.

In a transmission from the first communication device 410 to the second communication device 450, each receiver 454 receives a signal at the second communication device 450 through its respective antenna 452. Each receiver 454 recovers information modulated onto a radio frequency carrier and converts the radio frequency stream into a baseband multicarrier symbol stream that is provided to a receive processor 456. The receive processor 456 and the multi-antenna receive processor 458 implement various signal processing functions for the L1 layer. A multi-antenna receive processor 458 performs receive analog precoding/beamforming operations on the baseband multi-carrier symbol stream from the receiver 454. The receive processor 456 converts the baseband multicarrier symbol stream after receiving the analog precoding/beamforming operation from the time domain to the frequency domain using a Fast Fourier Transform (FFT). In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receive processor 456, wherein the reference signal is to be used for channel estimation, and the data signal is subjected to multi-antenna detection in the multi-antenna receive processor 458 to recover any spatial stream destined for the second communication device 450. The symbols on each spatial stream are demodulated and recovered in a receive processor 456 and soft decisions are generated. A receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals that were transmitted by the first communication device 410 on the physical channel. The upper layer data and control signals are then provided to the controller/processor 459. The controller/processor 459 implements the functions of the L2 layer. The controller/processor 459 may be associated with a memory 460 that stores program codes and data. Memory 460 may be referred to as a computer-readable medium. In the transmission from the first communication device 410 to the second communication device 450, the controller/processor 459 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover upper layer data packets from the core network. The upper layer packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing.

In the transmission from the second communication device 450 to the first communication device 410, a data source 467 is used at the second communication device 450 to provide upper layer data packets to a controller/processor 459. Data source 467 represents all protocol layers above the L2 layer. Similar to the transmit functions at the first communication device 410 described in the transmission from the first communication device 410 to the second communication device 450, the controller/processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocations, implementing L2 layer functions for the user and control planes. The controller/processor 459 is also responsible for retransmission of lost packets and signaling to the first communication device 410. The transmit processor 468 performs modulation mapping, channel coding, and digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming, with the multi-antenna transmit processor 457 performing digital multi-antenna spatial precoding, after which the transmit processor 468 modulates the resulting spatial stream into a multi-carrier/single-carrier symbol stream, which is analog precoded/beamformed in the multi-antenna transmit processor 457 before being provided to the different antennas 452 via the transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream and provides it to an antenna 452.

In the transmission from the second communication device 450 to the first communication device 410, the function at the first communication device 410 is similar to the receiving function at the second communication device 450 described in the transmission from the first communication device 410 to the second communication device 450. Each receiver 418 receives radio frequency signals through its corresponding antenna 420, converts the received radio frequency signals to baseband signals, and provides the baseband signals to a multi-antenna receive processor 472 and a receive processor 470. The receive processor 470 and the multi-antenna receive processor 472 collectively implement the functions of the L1 layer. The controller/processor 475 implements L2 layer functions. The controller/processor 475 may be associated with a memory 476 that stores program codes and data. Memory 476 may be referred to as a computer-readable medium. In the transmission from the second communication device 450 to the first communication device 410, a controller/processor 475 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover upper layer data packets from the UE 450. Upper layer packets from the controller/processor 475 may be provided to the core network.

As an embodiment, the second communication device 450 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The second communication device 450 means at least: measuring a first channel busy ratio over a first set of reference signal resources within a first time window; determining whether to transmit a first positioning reference signal on a first time domain resource block; the first resource pool comprises Q reference signal resource sets, any one of the Q reference signal resource sets comprises a plurality of reference signal resources, the RE numbers occupied by any two of the Q reference signal resource sets are equal, any one of the Q reference signal resource sets respectively belongs to the RE numbers occupied by two of the two reference signal resource sets are different, and Q is a positive integer greater than 1; the first reference signal resource group comprises a plurality of reference signal resources, the first reference signal resource group belonging to one of the Q reference signal resource sets; the first channel busy ratio is used to determine whether to transmit the first positioning reference signal on the first time domain resource block; the first time domain resource block is used to determine the first time window.

As an embodiment, the second communication device 450 includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: measuring a first channel busy ratio over a first set of reference signal resources within a first time window; determining whether to transmit a first positioning reference signal on a first time domain resource block; the first resource pool comprises Q reference signal resource sets, any one of the Q reference signal resource sets comprises a plurality of reference signal resources, the RE numbers occupied by any two of the Q reference signal resource sets are equal, any one of the Q reference signal resource sets respectively belongs to the RE numbers occupied by two of the two reference signal resource sets are different, and Q is a positive integer greater than 1; the first reference signal resource group comprises a plurality of reference signal resources, the first reference signal resource group belonging to one of the Q reference signal resource sets; the first channel busy ratio is used to determine whether to transmit the first positioning reference signal on the first time domain resource block; the first time domain resource block is used to determine the first time window.

As one embodiment, the first communication device 410 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The first communication device 410 means at least: receiving a first positioning reference signal on a first time domain resource block; the first resource pool comprises Q reference signal resource sets, any one of the Q reference signal resource sets comprises a plurality of reference signal resources, the RE numbers occupied by any two of the Q reference signal resource sets are equal, any one of the Q reference signal resource sets respectively belongs to the RE numbers occupied by two of the two reference signal resource sets are different, and Q is a positive integer greater than 1; the resources occupied by the first positioning reference signal include at least one reference signal resource in one of the Q reference signal resource sets; the first time domain resource block belongs to a time domain resource occupied by the first resource pool; the first positioning reference signal is used to generate first position information.

As one embodiment, the first communication device 410 includes: a memory storing a program of computer-readable instructions that, when executed by at least one processor, produce acts comprising: receiving a first positioning reference signal on a first time domain resource block; the first resource pool comprises Q reference signal resource sets, any one of the Q reference signal resource sets comprises a plurality of reference signal resources, the RE numbers occupied by any two of the Q reference signal resource sets are equal, any one of the Q reference signal resource sets respectively belongs to the RE numbers occupied by two of the two reference signal resource sets are different, and Q is a positive integer greater than 1; the resources occupied by the first positioning reference signal include at least one reference signal resource in one of the Q reference signal resource sets; the first time domain resource block belongs to a time domain resource occupied by the first resource pool; the first positioning reference signal is used to generate first position information.

As an embodiment, the second communication device 450 corresponds to the first node in the present application.

As an embodiment, the first communication device 410 corresponds to the second node in the present application.

As an embodiment, the second communication device 450 is a UE.

As an embodiment, the first communication device 410 is a UE.

As an embodiment, the second communication device 450 is an RSU.

As an embodiment, the first communication device 410 is an RSU.

As an example, at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460 is used in the present application to measure a first channel busy ratio on a first set of reference signal resources within a first time window.

As an example, at least one of the antenna 452, the receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, the memory 460 is used in the present application to evaluate the first channel occupancy in the second set of reference signal resources within the second time window.

As an example, at least one of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller/processor 459, the memory 460, the data source 467 is used in the present application to determine whether to send a first positioning reference signal on a first time domain resource block.

As an example, at least one of the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller/processor 459, the memory 460, the data source 467 is used in the present application to send a first positioning reference signal on a first time domain resource block.

As an example, at least one of the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475, the memory 476 is used in the present application to receive a first positioning reference signal on a first time domain resource block.

Example 5

Embodiment 5 illustrates a block diagram of UE positioning according to one embodiment of the application, as shown in fig. 5.

The UE501 communicates with the UE502 through a PC5 interface; UE502 communicates with ng-eNB503 or gNB504 over LTE (Long TermEvolution ) -Uu interface or NR (New Radio) -Uu New Radio interface; the NG-eNB503 and the gNB504 are sometimes referred to as base stations, and the NG-eNB503 and the gNB504 are also referred to as NG (Next Generation) -RAN (RadioAccess Network ). The NG-eNB503 and the gNB504 are connected to an AMF (Authentication MANAGEMENT FIELD, authentication management domain) 505 through NG (Next Generation) -C (Controlplane ), respectively; AMF505 is coupled to LMF (Location ManagementFunction ) 506 via an NL1 interface.

The AMF505 receives a location service request associated with a particular UE from another entity, such as GMLC (Gateway Mobile Location Centre, gateway mobile location center) or UE, or the AMF505 itself decides to initiate a location service associated with a particular UE; the AMF505 then sends a location services request to an LMF, such as the LMF506; this LMF then processes the location service request, including sending assistance data to the particular UE to assist UE-based or UE-assisted (UE-assisted) positioning, and including receiving location information (Location information) from UE reporting; this LMF then returns the results of the location services to the AMF505; if the location service is requested by another entity, AMF505 returns the results of the location service to that entity.

As one embodiment, the network device of the present application includes an LMF.

As one embodiment, the network device of the present application includes an NG-RAN and an LMF.

As one embodiment, the network device of the present application includes NG-RAN, AMF, and LMF.

Example 6

Embodiment 6 illustrates a wireless signal transmission flow diagram according to one embodiment of the application, as shown in fig. 6. In fig. 6, communication is performed between a first node U1 and a second node U2 via an air interface. In fig. 6, the steps in the dashed box F0 are optional.

For the first node U1, measuring a first channel busy ratio over a first set of reference signal resources within a first time window in step S11; evaluating the first channel occupancy in a second set of reference signal resources within a second time window in step S12; determining in step S13 whether a first positioning reference signal is transmitted on a first time domain resource block; a first positioning reference signal is transmitted on a first time domain resource block in step S14.

For the second node U2, a first positioning reference signal is received on the first time domain resource block in step S21.

In embodiment 6, the first time domain resource block is used by the first node U1 to determine the first time window and the second time window; the first resource pool comprises Q reference signal resource sets, any one of the Q reference signal resource sets comprises a plurality of reference signal resources, the RE numbers occupied by any two of the Q reference signal resource sets are equal, any one of the Q reference signal resource sets respectively belongs to the RE numbers occupied by two of the two reference signal resource sets are different, and Q is a positive integer greater than 1; the reference signal resource in any one of the Q reference signal resource sets belongs to at least one PRB in the frequency domain, and the reference signal resource in any one of the Q reference signal resource sets belongs to an even number of consecutive multicarrier symbols in the time domain; the Q reference signal resource sets are respectively in one-to-one correspondence with the Q grades; the Q grades respectively correspond to Q unequal positive integers; the RE number occupied by any one of the Q reference signal resource sets is related to the grade corresponding to the reference signal resource; the REs occupied by one of the sets of reference signal resources corresponding to a lower level is a subset of the REs occupied by one of the sets of reference signal resources corresponding to a higher level; the first reference signal resource group comprises a plurality of reference signal resources, the first reference signal resource group belonging to one of the Q reference signal resource sets; the first channel busy ratio is a ratio of more than a first threshold among the RSSIs measured on the plurality of reference signal resources included in the first reference signal resource group, respectively, and the RSSI measured on any one of the reference signal resources in the first reference signal resource group is a linear average of all the received powers observed on all REs included in the reference signal resource; the second reference signal resource group and the first reference signal resource group belong to the same reference signal resource set; the first channel busy ratio is used by the first node U1 to determine the first maximum channel occupancy ratio; whether the first channel occupancy is not greater than the first maximum channel occupancy is used by the first node U1 to determine whether to transmit the first positioning reference signal on the first time domain resource block; the first positioning reference signal is used by the second node U2 to generate first position information.

As an embodiment, the communication between the first node U1 and the second node U2 is performed through a PC5 interface.

As an example, the steps in block F0 of fig. 6 exist.

As an example, the steps in block F0 of fig. 6 are absent.

As an embodiment, when the first node U1 determines to transmit the first positioning reference signal on the first time domain resource block, the step in block F0 in fig. 6 exists.

As an embodiment, when the first node U1 determines that the first positioning reference signal is not transmitted on the first time domain resource block, the step in block F0 in fig. 6 does not exist.

As an example, the step in block F0 of fig. 6 exists when the first channel occupancy is not greater than the first maximum channel occupancy.

As an example, the step in block F0 of fig. 6 does not exist when the first channel occupancy ratio is greater than the first maximum channel occupancy ratio.

As an embodiment, the second node U2 sends the first location information to the first node U1.

As an embodiment, the second node U2 sends the first location information to the first node U1, and the first node U1 reports the first location information to the LMF.

As an embodiment, the second node U2 reports the first location information to the LMF.

Example 7

Embodiment 7 illustrates a schematic diagram of the relationship between Q sets of reference signal resources according to one embodiment of the application, as shown in fig. 7. In fig. 7, the Q reference signal resource sets include a reference signal resource set #1, a reference signal resource set #2, a reference signal resource set #3, a reference signal resource set #q; the square filled with the oblique square represents RE occupied by one reference signal resource in the reference signal resource set # 1; the diagonal filled squares represent REs occupied by one reference signal resource in the reference signal resource set # 2; square filled squares represent REs occupied by one reference signal resource in the reference signal resource set # 3; the square filled by the wave point represents RE occupied by one reference signal resource in the reference signal resource set #Q; the long rectangle labeled "AGC" represents the multicarrier symbols used for automatic gain control (Automatic Gain Control, AGC); the long rectangle labeled "GAP" represents the guard interval.

In embodiment 7, the first resource pool includes Q sets of reference signal resources including reference signal resource set #1, reference signal resource set #2, reference signal resource set #3, reference signal resource set #q; any one of the Q reference signal resource sets includes a plurality of reference signal resources; the number of REs occupied by any two reference signal resources included in any one of the Q reference signal resource sets is equal, any one of the Q reference signal resource sets respectively belongs to the number of REs occupied by two reference signal resources in the two reference signal resource sets, and Q is a positive integer greater than 1.

As an embodiment, the Q sets of reference signal resources each take Q given configurations.

As an embodiment, Q given configurations are used to configure the Q sets of reference signal resources, respectively.

As an embodiment, the Q given configurations are configured by a base station.

As an embodiment, the Q given configurations are configured by higher layers of the first node.

As an embodiment, the Q given configurations are predefined.

As one embodiment, the Q given configurations are preconfigured.

As an embodiment, the Q given configurations are configurable.

As an embodiment, the Q given configurations are indicated by a higher layer (HIGHERLAYER) signaling.

As an embodiment, the Q given configurations are indicated by one RRC (Radio Resource Control ) layer signaling.

As an embodiment, the Q given configurations are indicated by one RRC-IE (Radio Resource Control-Information Element ).

As an embodiment, the Q given configurations are indicated by one MAC (MultimediaAccess Control ) layer signaling.

As an embodiment, the Q given configurations are indicated by one MAC-CE (MultimediaAccess Control-Control Element).

As one embodiment, the Q given configurations are indicated by one PHY (PHYSICAL LAYER ) signaling.

As an embodiment, the Q given configurations are indicated by one downlink signaling.

As an embodiment, the Q given configurations are indicated by one sidelink signaling.

As an embodiment, the Q given configurations are indicated by one DCI (Downlink Control Information ).

As an embodiment, the Q given configurations are indicated by one SCI (Sidelink Control Information ).

As an embodiment, any given configuration of the Q given configurations includes at least one of a resource map (Pattern), a Comb Size (Comb Size), a number of symbols, a number of frequency domain resource blocks, a resource repetition factor, a transmission period, and a maximum transmission power value.

As an embodiment, any one of the Q sets of reference signal resources adopts one of the Q given configurations.

As an embodiment, any reference signal resource in any one of the Q sets of reference signal resources adopts a resource map comprised by a given one of the Q given configurations.

As an embodiment, any one of the Q sets of reference signal resources adopts a comb size comprised by a given one of the Q given configurations.

As an embodiment, any one of the Q sets of reference signal resources adopts a number of symbols comprised by a given one of the Q given configurations.

As an embodiment, any reference signal resource in any one of the Q reference signal resource sets adopts a frequency domain resource block number included in a given configuration of the Q given configurations.

As an embodiment, any one of the Q sets of reference signal resources adopts a resource repetition factor comprised by a given one of the Q given configurations.

As an embodiment, any one of the Q sets of reference signal resources adopts a transmission period comprised by a given one of the Q given configurations.

As an embodiment, any one of the Q sets of reference signal resources adopts a maximum transmit power value comprised by a given one of the Q given configurations.

As an embodiment, any two of the Q given configurations are different.

As one embodiment, the first given configuration and the second given configuration are any two of the Q given configurations.

As an embodiment, the first given configuration comprises a different resource profile than the second given configuration.

As an embodiment, the first given configuration comprises a comb size that is different from the comb size comprised by the second given configuration.

As an embodiment, the first given configuration comprises a different number of symbols than the second given configuration.

As an embodiment, the number of frequency domain resource blocks comprised by the first given configuration is different from the number of frequency domain resource blocks comprised by the second given configuration.

As an embodiment, the first given configuration comprises a different resource repetition factor than the second given configuration.

As an embodiment, the first given configuration comprises a different transmission period than the second given configuration.

As an embodiment, the first given configuration comprises a different maximum transmit power value than the second given configuration.

As one embodiment, the first set of given reference signal resources is any one of the Q sets of reference signal resources, the first set of given reference signal resources comprising a plurality of reference signal resources, any one of the first set of given reference signal resources adopting a first given configuration, the first given configuration being one of the Q given configurations.

As one example, the resource map includes a staggered map (Full-STAGGEREDPATTERN).

As one example, the resource map includes a semi-interlaced map (Partial-STAGGEREDPATTERN).

As one embodiment, the resource pattern comprises a non-interlaced pattern (Unstaggeredpattern).

As an embodiment, the comb size is a positive integer.

As an embodiment, the comb size is equal to K, which is a positive integer.

As an example, K is a positive integer in 2,4,6,12.

As an embodiment, the comb size is an interval in the frequency domain of REs occupied by any one of the Q reference signal resource sets.

As an embodiment, the comb size is the number of sub-carriers spaced between two adjacent REs occupied by any reference signal resource in the Q reference signal resource sets in the frequency domain.

As an embodiment, the comb size in the first given configuration is the number of sub-carriers spaced between two adjacent REs occupied by any one of the first given set of reference signal resources in the frequency domain.

As an embodiment, the number of symbols is a positive integer.

As an embodiment, the number of symbols is equal to L, where L is a positive integer.

As an example, L is a positive integer in 2,4,6,12.

As an embodiment, the number of symbols is the size of any reference signal resource in the Q reference signal resource sets in the time domain.

As one embodiment, the number of symbols is the number of multicarrier symbols occupied in the time domain by any one of the Q reference signal resource sets.

As an embodiment, the number of symbols in the first given configuration is the number of multicarrier symbols occupied in the time domain by any one of the first given set of reference signal resources.

As an embodiment, the number of frequency domain resource blocks is a positive integer.

As an embodiment, the number of the frequency domain resource blocks is equal to B, where B is a positive integer.

As an embodiment, the B is the number of PRBs.

As an example, B is a multiple of 4.

As an embodiment, the B is not less than 24.

As an example, B is not greater than 272.

As an embodiment, the number of frequency domain resource blocks is the number of frequency domain resource blocks occupied by any one reference signal resource in the Q reference signal resource sets in the frequency domain.

As an embodiment, the number of frequency domain resource blocks is a number of frequency domain resource blocks allocated to any one of the Q reference signal resource sets.

As an embodiment, the number of frequency domain resource blocks in the first given configuration is the number of frequency domain resource blocks occupied by any reference signal resource in the first given reference signal resource set in the frequency domain.

As an embodiment, the number of frequency domain resource blocks in the first given configuration is the number of frequency domain resource blocks allocated to any one of the Q reference signal resource sets.

As an embodiment, the resource repetition factor is a positive integer.

As an embodiment, the resource repetition factor is equal to T, which is a positive integer.

As an example, T is a positive integer in 1,2,4,6,8,16,32.

As an embodiment, the T is equal to 1, and any reference signal resource in the Q reference signal resource sets is not repeated.

As an embodiment, the resource repetition factor is a number of times any one of the Q sets of reference signal resources is repeated.

As an embodiment, the resource repetition factor is a number of times any one of the Q sets of reference signal resources is repeated in the time domain.

As an embodiment, the resource repetition factor is a number of repetitions of any of the Q sets of reference signal resources in the first resource pool.

As an embodiment, the resource repetition factor is a number of repetitions of any of the Q sets of reference signal resources in one time domain resource block.

As an embodiment, the resource repetition factor is a number of repetitions of any of the Q sets of reference signal resources in one slot.

As an embodiment, the resource repetition factor is a number of repetitions of any of the Q sets of reference signal resources within the first time window.

As an embodiment, the resource repetition factor in the first given configuration is the number of times any one of the first given set of reference signal resources is repeated.

As an embodiment, the transmission period includes S time domain resource blocks, and S is a positive integer.

As an embodiment, the transmission period includes S slots, S being a positive integer.

As an example, S is one of 2 ^μ × {4,5,8,10,16,20,32,40,64,80,160,320,640,1280,2560,5120,10240}, μ is one of 0,1,2, 3.

As an embodiment, the transmission period relates to a subcarrier spacing in the first resource pool.

As an embodiment, the transmission period relates to a subcarrier spacing of any one of the Q sets of reference signal resources.

As an embodiment μ depends on the subcarrier spacing of any of the Q sets of reference signal resources.

As an embodiment, the transmission period is a period of any one of the Q sets of reference signal resources.

As an embodiment, the transmission period in the first given configuration is a period of any one of the first given set of reference signal resources.

As an embodiment, the unit of the maximum transmission power value is dB (decibel).

As an embodiment, the unit of the maximum transmission power value is dBm (millidecibel).

As an embodiment, the unit of the maximum transmission power value is W (watts).

As an example, the unit of the maximum transmission power value is mW (milliwatt).

As an embodiment, the maximum transmission power value is a maximum transmission power value of a positioning reference signal transmitted on any one of the Q reference signal resource sets.

As an embodiment, the transmission power value of the positioning reference signal transmitted on any one of the Q reference signal resource sets is not greater than the maximum transmission power value.

As an embodiment, the maximum transmit power value in the first given configuration is a maximum transmit power value of a positioning reference signal transmitted on any one of the first set of reference signal resources.

As an embodiment, the resource patterns employed by any two reference signal resources in the first set of given reference signal resources are the same.

As an embodiment, the comb sizes adopted by any two reference signal resources in the first given set of reference signal resources are equal.

As an embodiment, any two reference signal resources in the first set of given reference signal resources employ the same comb size.

As an embodiment, the number of symbols employed by any two reference signal resources in the first set of given reference signal resources is the same.

As an embodiment, the number of frequency domain resource blocks adopted by any two reference signal resources in the first given reference signal resource set is the same.

As an embodiment, the resource repetition factor employed by any two reference signal resources in the first given set of reference signal resources is the same.

As an embodiment, the transmission period employed by any two reference signal resources in the first given set of reference signal resources is the same.

As an embodiment, the maximum transmit power employed by any two reference signal resources in the first given set of reference signal resources is the same.

As an embodiment, REs occupied by any one of the Q sets of reference signal resources is related to a corresponding one of the given configurations.

As an embodiment, REs occupied by any one of the Q sets of reference signal resources depends on a given configuration to which it corresponds.

As one embodiment, any given configuration of the Q given configurations is used to determine REs occupied by any reference signal resource of one of the Q reference signal resource sets.

As one embodiment, the first given configuration is used to determine REs occupied by any one of the first given set of reference signal resources.

As an embodiment, REs occupied by any one of the first set of reference signal resources is related to the first given configuration.

As an embodiment, REs occupied by any one of the first set of reference signal resources is dependent on the first given configuration.

As an embodiment, the number of REs occupied by any one of the Q sets of reference signal resources is related to a corresponding one of the given configurations.

As an embodiment, the number of REs occupied by any one of the Q sets of reference signal resources depends on the corresponding one of the given configurations.

As one embodiment, any given configuration of the Q given configurations is used to determine the number of REs occupied by any reference signal resource of one of the Q reference signal resource sets.

As one embodiment, the first given configuration is used to determine the number of REs occupied by any one of the first given set of reference signal resources.

As an embodiment, the number of REs occupied by any one of the first set of reference signal resources is related to the first given configuration.

As an embodiment, the number of REs occupied by any one of the first set of reference signal resources depends on the first given configuration.

As an embodiment, the number of REs occupied by any one of the first set of reference signal resources is related to the resource map comprised by the first given configuration.

As an embodiment, the number of REs occupied by any one of the first set of reference signal resources is related to the comb size comprised by the first given configuration.

As an embodiment, the number of REs occupied by any one of the first set of reference signal resources is related to the number of symbols comprised by the first given configuration.

As an embodiment, the number of REs occupied by any one of the first set of reference signal resources is related to the number of frequency domain resource blocks comprised by the first given configuration.

As an embodiment, the number of REs occupied by any one of the first set of reference signal resources is related to the resource repetition factor comprised by the first given configuration.

As an embodiment, the resource map comprised by the first given configuration is used to determine the number of REs occupied by any one of the reference signal resources in the first given set of reference signal resources.

As an embodiment, the comb size comprised by the first given configuration is used to determine the number of REs occupied by any one of the first given set of reference signal resources.

As an embodiment, the number of symbols comprised by the first given configuration is used to determine the number of REs occupied by any one of the first set of reference signal resources.

As an embodiment, the number of frequency domain resource blocks comprised by the first given configuration is used to determine the number of REs occupied by any one of the reference signal resources in the first given set of reference signal resources.

As one embodiment, the resource repetition factor included in the first given configuration is used to determine the number of REs occupied by any one of the first given set of reference signal resources.

As an embodiment, the first set of given reference signal resources comprises a first given reference signal resource and a second given reference signal resource, the first given reference signal resource adopting the first given configuration, the second given reference signal resource also adopting the first given configuration.

As an embodiment, the first set of given reference signal resources includes a first given reference signal resource and a second given reference signal resource, and the number of REs occupied by the first given reference signal resource is equal to the number of REs occupied by the second given reference signal resource.

As one embodiment, the first set of given reference signal resources includes a first given reference signal resource and a second given reference signal resource, the first given reference signal resource occupying a different REs than the second given reference signal resource.

As an embodiment, the first set of given reference signal resources comprises a first given reference signal resource and a second given reference signal resource, at least one RE of REs occupied by the first given reference signal resource being different from at least one RE of REs occupied by the second given reference signal resource.

As an embodiment, the first set of given reference signal resources includes a first given reference signal resource and a second given reference signal resource, the number of REs occupied by the first given reference signal resource is equal to the number of REs occupied by the second given reference signal resource, and the REs occupied by the first given reference signal resource is different from the REs occupied by the second given reference signal resource.

As an embodiment, the first set of given reference signal resources includes a first given reference signal resource and a second given reference signal resource, and the number of REs occupied by the first given reference signal resource in one time-frequency resource block of the first resource pool is equal to the number of REs occupied by the second given reference signal resource in one time-frequency resource block of the first resource pool.

As an embodiment, the first set of given reference signal resources includes a first given reference signal resource and a second given reference signal resource, the number of REs occupied by the first given reference signal resource in one time domain resource block of the first resource pool is equal to the number of REs occupied by the second given reference signal resource in one time domain resource block of the first resource pool.

As an embodiment, the first set of given reference signal resources includes a first given reference signal resource and a second given reference signal resource, and the number of REs occupied by the first given reference signal resource in one frequency domain resource block of the first resource pool is equal to the number of REs occupied by the second given reference signal resource in one frequency domain resource block of the first resource pool.

As an embodiment, the first set of given reference signal resources includes a first given reference signal resource and a second given reference signal resource, the number of REs occupied by the first given reference signal resource in at least one time-frequency resource block of the first resource pool is equal to the number of REs occupied by the second given reference signal resource in at least one time-frequency resource block of the first resource pool.

As an embodiment, the first set of given reference signal resources comprises a first given reference signal resource and a second given reference signal resource, the number of REs occupied by the first given reference signal resource in at least one time domain resource block of the first resource pool being equal to the number of REs occupied by the second given reference signal resource in at least one time domain resource block of the first resource pool.

As an embodiment, the first set of given reference signal resources comprises a first given reference signal resource and a second given reference signal resource, the number of REs occupied by the first given reference signal resource in at least one frequency domain resource block of the first resource pool being equal to the number of REs occupied by the second given reference signal resource in at least one frequency domain resource block of the first resource pool.

As an embodiment, the first set of given reference signal resources includes a first given reference signal resource and a second given reference signal resource, and the number of REs occupied by the first given reference signal resource in one slot is equal to the number of REs occupied by the second given reference signal resource in one slot.

As one embodiment, the Q sets of reference signal resources include a first set of given reference signal resources and a second set of given reference signal resources.

As an embodiment, the first set of given reference signal resources adopts a first given configuration and the second set of given reference signal resources adopts a second given configuration, the first given configuration and the second given configuration being two given configurations of the Q given configurations, respectively.

As one embodiment, the first given configuration is different from the second given configuration.

As one embodiment, the resource pattern in the first given configuration is different from the resource pattern in the second given configuration.

As one embodiment, the comb size in the first given configuration is not equal to the comb size in the second given configuration.

As an embodiment, the number of symbols in the first given configuration is not equal to the number of symbols in the second given configuration.

As an embodiment, the number of frequency domain resource blocks in the first given configuration is different from the number of frequency domain resource blocks in the second given configuration.

As an embodiment, all reference signal resources in the first given set of reference signal resources adopt the first given configuration.

As an embodiment, all reference signal resources in the second set of given reference signal resources adopt the second given configuration.

As an embodiment, the number of REs occupied by any one of the first set of reference signal resources is different from the number of REs occupied by the second set of reference signal resources.

As one embodiment, the first set of given reference signal resources comprises a third given reference signal resource and the second set of given reference signal resources comprises a fourth given reference signal resource.

As an embodiment, the third given reference signal resource is one of the first set of reference signal resources and the fourth given reference signal resource is one of the second set of reference signal resources.

As an embodiment, the third given reference signal resource is any one of the first set of reference signal resources and the fourth given reference signal resource is any one of the second set of reference signal resources.

As an embodiment, the number of REs occupied by the third given reference signal resource is different from the number of REs occupied by the fourth given reference signal resource.

As an embodiment, the number of REs occupied by the third given reference signal resource in one time-frequency resource block of the first resource pool is equal to the number of REs occupied by the fourth given reference signal resource in one time-frequency resource block of the first resource pool.

As an embodiment, the number of REs occupied by the third given reference signal resource in one time domain resource block of the first resource pool is equal to the number of REs occupied by the fourth given reference signal resource in one time domain resource block of the first resource pool.

As an embodiment, the number of REs occupied by the third given reference signal resource in one frequency domain resource block of the first resource pool is equal to the number of REs occupied by the fourth given reference signal resource in one frequency domain resource block of the first resource pool.

As an embodiment, the number of REs occupied by the third given reference signal resource in at least one time-frequency resource block of the first resource pool is equal to the number of REs occupied by the fourth given reference signal resource in at least one time-frequency resource block of the first resource pool.

As an embodiment, the number of REs occupied by the third given reference signal resource in at least one time domain resource block of the first resource pool is equal to the number of REs occupied by the fourth given reference signal resource in at least one time domain resource block of the first resource pool.

As an embodiment, the number of REs occupied by the third given reference signal resource in at least one frequency domain resource block of the first resource pool is equal to the number of REs occupied by the fourth given reference signal resource in at least one frequency domain resource block of the first resource pool.

As an embodiment, the number of REs occupied by the third given reference signal resource in one slot is equal to the number of REs occupied by the fourth given reference signal resource in one slot.

Example 8

Embodiment 8 illustrates a schematic diagram of the relationship between Q sets of reference signal resources and Q levels according to one embodiment of the application, as shown in fig. 8. In fig. 8, the Q reference signal resource sets include a reference signal resource set #1, a reference signal resource set #2, a reference signal resource set #3, a reference signal resource set #q; the Q ranks include rank #1, rank #2, rank #3, &..the rank # Q; the squares filled with "1" represent REs occupied by one reference signal resource in the reference signal resource set # 1; the squares filled with "2" represent REs occupied by one reference signal resource in the reference signal resource set # 2; the squares filled with "3" represent REs occupied by one reference signal resource in the reference signal resource set # 3; the squares filled with "Q" represent REs occupied by one reference signal resource in the reference signal resource set #q; the long rectangle labeled "AGC" represents the multicarrier symbol used for automatic gain control; the long rectangle labeled "GAP" represents the guard interval.

In embodiment 8, the Q reference signal resource sets are respectively in one-to-one correspondence with Q levels; the number of REs occupied by any one of the Q reference signal resource sets is related to the Q levels, respectively.

As an embodiment, the Q levels are Q non-equal non-negative integers, respectively.

As an embodiment, the Q levels are Q non-equal positive integers, respectively.

As one example, the Q classes are positive integers from 1 to Q, respectively.

As one example, the Q classes are integers from 0 to Q-1, respectively.

As one embodiment, the Q levels are inversely proportional to the Q positive integers corresponding thereto.

As one embodiment, the Q levels are inversely proportional to the Q non-negative integers corresponding thereto.

As an embodiment, the first given level and the second given level are any two levels of the Q levels, respectively, the first given level being equal to a first integer and the second given level being equal to a second integer.

As one embodiment, the first integer and the second integer are two non-negative integers of the Q non-negative integers, respectively.

As an embodiment, the first integer and the second integer are two positive integers of the Q positive integers, respectively.

As an embodiment, the first integer is smaller than the second integer, and the first given level is higher than the second given level.

As an embodiment, the first integer is greater than the second integer, and the first given level is lower than the second given level.

As an embodiment, the first integer is smaller than the second integer, and the first given level is higher than the second given level; or the first integer is greater than the second integer, the first given level being lower than the second given level.

As one embodiment, the first given level is higher than the second given level when the first integer is less than the second integer; the first given level is lower than the second given level when the first integer is greater than the second integer.

As one embodiment, the first given set of reference signal resources corresponds to a first given level, the first given set of reference signal resources being one of the Q sets of reference signal resources, the first given level being one of the Q levels.

As one embodiment, the first given set of reference signal resources corresponds to a first given level, the first given set of reference signal resources being any one of the Q sets of reference signal resources, the first given level being one of the Q levels.

As an embodiment, the number of REs occupied by any one of the first set of reference signal resources is related to the first given level.

As an embodiment, the number of REs occupied by the first given reference signal resource in one time-frequency resource block of the first resource pool is related to the first given level.

As an embodiment, the number of REs occupied by the first given reference signal resource in one time domain resource block of the first resource pool is related to the first given level.

As an embodiment, the number of REs occupied by the first given reference signal resource in one frequency domain resource block of the first resource pool is related to the first given level.

As an embodiment, the number of REs occupied by the first given reference signal resource in at least one time-frequency resource block of the first resource pool is related to the first given level.

As an embodiment, the number of REs occupied by the first given reference signal resource in at least one time domain resource block of the first resource pool is related to the first given level.

As an embodiment, the number of REs occupied by the first given reference signal resource in at least one frequency domain resource block of the first resource pool is related to the first given level.

As an embodiment, the number of REs occupied by the first given reference signal resource in one slot is related to the first given level.

As an embodiment, the first given level is used to determine the number of REs occupied by any one of the first set of reference signal resources.

As an embodiment, the first given level is used to determine the number of REs occupied by the first given reference signal resource in one time-frequency resource block of the first resource pool.

As an embodiment, the first given level is used to determine the number of REs occupied by the first given reference signal resource in one time domain resource block of the first resource pool.

As an embodiment, the first given level is used to determine the number of REs occupied by the first given reference signal resource in one frequency domain resource block of the first resource pool.

As an embodiment, the first given level is used to determine the number of REs occupied by the first given reference signal resource in at least one time-frequency resource block of the first resource pool.

As an embodiment, the first given level is used to determine the number of REs occupied by the first given reference signal resource in at least one time domain resource block of the first resource pool.

As an embodiment, the first given level is used to determine the number of REs occupied by the first given reference signal resource in at least one frequency domain resource block of the first resource pool.

As an embodiment, the first given level is used to determine the number of REs occupied by the first given reference signal resource in one slot.

As an embodiment, the Q levels are respectively in one-to-one correspondence with the Q given configurations.

As an embodiment, the Q given configurations are respectively associated with the Q levels.

As an embodiment, the Q levels are used to determine the Q given configurations, respectively.

As an embodiment, the first given level is any one of the Q levels, the first given level corresponding to the first given configuration, the first given level being used to determine the first given configuration from the Q given configurations.

As one embodiment, the reference signal resource set corresponding to a higher level in the Q reference signal resource sets

As an embodiment, the Q non-negative integers corresponding to the Q levels are inversely proportional to the number of REs occupied by any one reference signal resource in the Q reference signal resource sets.

As an embodiment, the Q positive integers corresponding to the Q levels are inversely proportional to the number of REs occupied by any one reference signal resource in the Q reference signal resource sets.

As an embodiment, the first set of given reference signal resources and the second set of given reference signal resources are any two of the Q sets of reference signal resources, respectively, the first set of given reference signal resources corresponding to a first given level and the second set of given reference signal resources corresponding to a second given level.

As one embodiment, the first given level and the second given level are two levels of the Q levels, respectively.

As an embodiment, the first given level is higher than the second given level, and the number of REs occupied by any one of the first set of reference signal resources is greater than the number of REs occupied by any one of the second set of reference signal resources.

As an embodiment, the first given level is lower than the second given level, and the number of REs occupied by any one of the first set of reference signal resources is smaller than the number of REs occupied by any one of the second set of reference signal resources.

As an embodiment, the first given level is higher than the second given level, and the number of REs occupied by any reference signal resource in the first given reference signal resource set is greater than the number of REs occupied by any reference signal resource in the second given reference signal resource set; or the first given level is lower than the second given level, and the number of REs occupied by any reference signal resource in the first given reference signal resource set is smaller than the number of REs occupied by any reference signal resource in the second given reference signal resource set.

As an embodiment, when the first given level is higher than the second given level, the number of REs occupied by any one of the first given set of reference signal resources is greater than the number of REs occupied by any one of the second given set of reference signal resources; when the first given level is lower than the second given level, any one of the first set of reference signal resources occupies fewer REs than any one of the second set of reference signal resources.

As an embodiment, the number of REs occupied by any reference signal resource in the first given reference signal resource set refers to the number of REs occupied by any reference signal resource in the first given reference signal resource set in one time-frequency resource block of the first resource pool.

As an embodiment, the number of REs occupied by any reference signal resource in the first given reference signal resource set refers to the number of REs occupied by any reference signal resource in the first given reference signal resource set in one time domain resource block of the first resource pool.

As an embodiment, the number of REs occupied by any reference signal resource in the first given reference signal resource set refers to the number of REs occupied by any reference signal resource in the first given reference signal resource set in one frequency domain resource block of the first resource pool.

As an embodiment, the number of REs occupied by any reference signal resource in the first given reference signal resource set refers to the number of REs occupied by any reference signal resource in the first given reference signal resource set in at least one time-frequency resource block of the first resource pool.

As an embodiment, the number of REs occupied by any reference signal resource in the first given reference signal resource set refers to the number of REs occupied by any reference signal resource in the first given reference signal resource set in at least one time domain resource block of the first resource pool.

As an embodiment, the number of REs occupied by any reference signal resource in the first given reference signal resource set refers to the number of REs occupied by any reference signal resource in the first given reference signal resource set in at least one frequency domain resource block of the first resource pool.

As an embodiment, the number of REs occupied by any reference signal resource in the first given reference signal resource set refers to the number of REs occupied by any reference signal resource in the first given reference signal resource set in one slot.

As an embodiment, the number of REs occupied by any reference signal resource in the second given reference signal resource set refers to the number of REs occupied by any reference signal resource in the second given reference signal resource set in one time-frequency resource block of the first resource pool.

As an embodiment, the number of REs occupied by any reference signal resource in the second given reference signal resource set refers to the number of REs occupied by any reference signal resource in the second given reference signal resource set in one time domain resource block of the first resource pool.

As an embodiment, the number of REs occupied by any reference signal resource in the second given reference signal resource set refers to the number of REs occupied by any reference signal resource in the second given reference signal resource set in one frequency domain resource block of the first resource pool.

As an embodiment, the number of REs occupied by any reference signal resource in the second given reference signal resource set refers to the number of REs occupied by any reference signal resource in the second given reference signal resource set in at least one time-frequency resource block of the first resource pool.

As an embodiment, the number of REs occupied by any reference signal resource in the second given reference signal resource set refers to the number of REs occupied by any reference signal resource in the second given reference signal resource set in at least one time domain resource block of the first resource pool.

As an embodiment, the number of REs occupied by any reference signal resource in the second given reference signal resource set refers to the number of REs occupied by any reference signal resource in the second given reference signal resource set in at least one frequency domain resource block of the first resource pool.

As an embodiment, the number of REs occupied by any reference signal resource in the second given reference signal resource set refers to the number of REs occupied by any reference signal resource in the second given reference signal resource set in one slot.

Example 9

Embodiment 9 illustrates a schematic diagram of a relationship between a first time domain resource block and a first time window and a second time window according to an embodiment of the present application, as shown in fig. 9. In fig. 9, a solid large box represents a first resource pool; the Q reference signal resource sets in the present application include a reference signal resource set #1, a reference signal resource set #2, &..the reference signal resource set #q; each diagonal filled rectangle represents one reference signal resource in the reference signal resource set #1, each diagonal filled rectangle represents one reference signal resource in the reference signal resource set #2, and each blank rectangle represents one reference signal resource in the reference signal resource set #q.

In embodiment 9, the first resource pool includes Q reference signal resource sets, any one of the Q reference signal resource sets including a plurality of reference signal resources, Q being a positive integer greater than 1; the first set of alternative reference signal resources is one of the Q sets of reference signal resources; the first reference signal resource group includes all reference signal resources of the first set of alternative reference signal resources within the first time window; a second set of reference signal resources includes all reference signal resources of the first set of alternative reference signal resources within the second time window; a first time domain resource block is used to determine the first time window and the second time window.

As an embodiment, the first resource pool comprises a second reference signal resource group comprising a plurality of reference signal resources.

As an embodiment, the second reference signal resource group and the first reference signal resource group belong to the same one of the Q reference signal resource sets.

As an embodiment, one of the Q sets of reference signal resources includes the first set of reference signal resources and the second set of reference signal resources.

As an embodiment, any one of the plurality of reference signal resources included in the second reference signal resource group belongs to one of the Q reference signal resource sets.

As an embodiment, the first reference signal resource group and the second reference signal resource group both belong to the first set of alternative reference signal resources.

As an embodiment, the first set of alternative reference signal resources comprises the first set of reference signal resources and the second set of reference signal resources.

As an embodiment, the plurality of reference signal resources comprised by the second reference signal resource group all belong to the first set of alternative reference signal resources.

As an embodiment, any one of the plurality of reference signal resources included in the second reference signal resource group is one of the first set of alternative reference signal resources.

As an embodiment, the first set of reference signal resources overlaps with the second set of reference signal resources.

As an embodiment, the first set of reference signal resources overlaps the second set of reference signal resources in the time domain.

As an embodiment, the first set of reference signal resources overlap the second set of reference signal resources in the frequency domain.

As an embodiment, the time-frequency resources occupied by the first reference signal resource group overlap with the time-frequency resources occupied by the second reference signal resource group.

As an embodiment, the second set of reference signal resources comprises the first set of reference signal resources.

As an embodiment, the first set of reference signal resources belongs to the second set of reference signal resources.

As an embodiment, any one of the first set of reference signal resources is one of the second set of reference signal resources.

As an embodiment, the first resource pool comprises the first time domain resource block in the time domain.

As an embodiment, the first time domain resource block is one of the plurality of time domain resource blocks included in the time domain by the first resource pool.

As an embodiment, the first time domain resource block comprises a plurality of multicarrier symbols.

As an embodiment, the first time domain resource block comprises at least one slot.

As an embodiment, the first time domain resource block belongs to one slot.

As an embodiment, the first time domain resource block is one slot.

As an embodiment, the first time domain resource block is a sidelink slot.

As an embodiment, the first time domain resource block is used for transmitting the first positioning reference signal.

As an embodiment, the first time domain resource block is configured to transmit the first positioning reference signal.

As an embodiment, the first time domain resource block is configured to the first positioning reference signal.

As an embodiment, the time domain resource occupied by the first reference signal resource in the time domain belongs to the first time domain resource block.

As an embodiment, the first time domain resource block includes a time domain resource occupied by the first reference signal resource in a time domain.

As an embodiment, the first time window comprises a plurality of time domain resource blocks.

As an embodiment, the first time window comprises a plurality of time domain resource blocks of the first resource pool in the time domain.

As an embodiment, the plurality of time domain resource blocks comprised by the first time window belong to the first resource pool.

As an embodiment, any one of the time domain resource blocks in the first time window is one of the plurality of time domain resource blocks included in the time domain by the first resource pool.

As an embodiment, the plurality of time domain resource blocks included in the first time window are a plurality of time slots, respectively.

As an embodiment, the first time window comprises a plurality of time slots.

As an embodiment, the length of the first time window is configured by a higher layer signaling.

As an embodiment, the length of the first time window is preconfigured.

As an embodiment, the length of the first time window is related to a subcarrier spacing in the first resource pool.

As an embodiment, the length of the first time window is related to a subcarrier spacing employed by the time-frequency resource blocks in the first resource pool.

As an embodiment, the first time window is a channel busy ratio (Channel Busy Ratio, CBR) measurement window.

As an embodiment, the first time window is a measurement window of a first channel busy ratio.

As an embodiment, the first time window is a measurement window of a second channel busy ratio.

As an embodiment, the first time window is a SL CBR measurement window.

As an embodiment, the first time window is a CBR measurement window of SL PRS.

As one embodiment, the first time window is a time window in which the first channel busy ratio measurement is performed.

As one embodiment, the first time window is a time window in which the second channel busy ratio measurement is performed.

As an embodiment, the first time window is a time window in which CBR measurements are performed.

As an embodiment, the first time window is a time window in which SL CBR measurements are performed.

As one embodiment, the first time window is a time window in which CBR measurements of SLPRS are performed.

As an embodiment, the first time window includes time domain resources occupied by the first reference signal resource group in a time domain.

As an embodiment, the time domain resource occupied by the first reference signal resource group in the time domain belongs to the first time window.

As an embodiment, the first time window includes time domain resources occupied in the time domain by any reference signal resource in the first reference signal resource group.

As an embodiment, the time domain resource occupied by any one reference signal resource in the first reference signal resource group in the time domain belongs to the first time window.

As an embodiment, the time domain resource occupied by any one reference signal resource in the first reference signal resource group in the time domain belongs to one time domain resource block in the plurality of time domain resource blocks included in the first time window.

As an embodiment, the time domain resource occupied by any one of the reference signal resources in the first reference signal resource group in the time domain is one of the plurality of time domain resource blocks included in the first time window.

As an embodiment, the first time window relates to the first time domain resource block.

As an embodiment, the first time domain resource block is used to determine the first time window.

As an embodiment, the start of the first time window is related to the first time domain resource block.

As an embodiment, the expiration of the first time window is related to the first time domain resource block.

As an embodiment, the first time domain resource block is used to determine the start of the first time window.

As an embodiment, the first time domain resource block is used to determine a cutoff of the first time window.

As an embodiment, the first time window includes a first time domain resource block of the plurality of time domain resource blocks that is advanced by a plurality of time domain resource blocks from the first time domain resource block.

As an embodiment, the first time window includes a last time domain resource block of the plurality of time domain resource blocks that is at least one time domain resource block earlier than the first time domain resource block.

As an embodiment, the last time domain resource block of the plurality of time domain resource blocks comprised by the first time window is one time domain resource block preceding the first time domain resource block.

As an embodiment, the last time domain resource block of the plurality of time domain resource blocks comprised by the first time window is a time domain resource block earlier than the first time domain resource block.

As an embodiment, the first time window includes a first time slot of the plurality of time slots being a plurality of time slots earlier than the first time domain resource block; the first time window includes a last slot of the plurality of slots that is one slot before the first time domain resource block.

As an embodiment, the first time domain resource block is used to determine a second time domain resource block, which is used to determine the first time window.

As an embodiment, the second time domain resource block comprises a plurality of multicarrier symbols.

As an embodiment, the second time domain resource block comprises one slot.

As an embodiment, the second time domain resource block belongs to one slot.

As an embodiment, the second time domain resource block is a slot.

As an embodiment, the second time domain resource block is a sidelink slot.

As an embodiment, the second time domain resource block is earlier than the first time domain resource block.

As an embodiment, the second time domain resource block precedes the first time domain resource block.

As one embodiment, the second time domain resource block is N0 time domain resource blocks earlier than the first time domain resource block, N0 being a positive integer.

As an embodiment, the second time domain resource block is N0 slots earlier than the first time domain resource block, N0 being a positive integer.

As an embodiment, the index of the second time domain resource block in the plurality of time domain resource blocks included in the first resource pool is equal to a difference value of the index of the first time domain resource block in the plurality of time domain resource blocks included in the first resource pool and the N0.

As one embodiment, the N0 time domain resource blocks are congestion control processing times.

As one embodiment, the N0 slots are congestion control processing times.

As an embodiment, the value of N0 is related to the subcarrier spacing in the first resource pool.

As an embodiment, the value of N0 is related to a subcarrier spacing adopted by the time-frequency resource block in the first resource pool.

As an embodiment, the first time window includes a first time domain resource block of the plurality of time domain resource blocks that is a time domain resource blocks earlier than the second time domain resource block by a time domain resource block, a being a positive integer.

As an embodiment, said a is a positive integer greater than 1.

As an embodiment, the first time window includes a last time domain resource block of the plurality of time domain resource blocks that is 1 time domain resource block earlier than the second time domain resource block.

As an embodiment, the first time window includes a first time slot of the plurality of time slots being a time slot earlier than the second time domain resource block by a time slot, a being a positive integer.

As an embodiment, the first time window comprises a last slot of the plurality of slots that is1 slot earlier than the second time domain resource block.

As an embodiment, the last slot of the plurality of slots comprised by the first time window is 1 slot before the second time domain resource block.

As an embodiment, the first time window is [ n-a, n-1], n is an index of the second time domain resource block in the plurality of time domain resource blocks included in the first resource pool, and a is a positive integer greater than 1.

As an embodiment, the length of the first time window is the a.

As an embodiment, said a is equal to 100.

As an embodiment, the a relates to a subcarrier spacing employed by a time-frequency resource block in the first resource pool.

As an embodiment, the length of the first time window is equal to 100.

As an embodiment, the length of the first time window is equal to 100×2 ^μ, μ relates to the subcarrier spacing in the first resource pool.

As an embodiment, the second time window comprises a plurality of time domain resource blocks.

As an embodiment, the second time window comprises a plurality of time domain resource blocks of the first resource pool in the time domain.

As an embodiment, the plurality of time domain resource blocks comprised by the second time window belong to the first resource pool.

As an embodiment, any one of the time domain resource blocks in the second time window is one of the plurality of time domain resource blocks included in the time domain by the first resource pool.

As an embodiment, the plurality of time domain resource blocks included in the second time window are a plurality of time slots, respectively.

As an embodiment, the second time window comprises a plurality of time slots.

As an embodiment, the length of the second time window is configured by a higher layer signaling.

As an embodiment, the length of the second time window is preconfigured.

As an embodiment, the length of the second time window is related to the subcarrier spacing in the first resource pool.

As an embodiment, the length of the second time window is related to a subcarrier spacing employed by the time-frequency resource blocks in the first resource pool.

As an embodiment, the second time window is a channel occupancy ratio (Channel Occupancy Ratio, CR) evaluation window.

As an embodiment, the second time window is an evaluation window of the first channel occupancy ratio.

As an embodiment, the second time window is an evaluation window of a second channel occupancy ratio.

As an embodiment, the second time window is a SL CR evaluation window.

As an embodiment, the second time window is a SLPRS CR evaluation window.

As an embodiment, the second time window is a time window in which the first channel occupancy evaluation is performed.

As an embodiment, the second time window is a time window in which the second channel occupancy evaluation is performed.

As an embodiment, the second time window is a time window in which CR evaluation is performed.

As an embodiment, the second time window is a time window in which SL CR evaluation is performed.

As one embodiment, the second time window is a time window in which the CR evaluation of SLPRS is performed.

As an embodiment, the second time window includes time domain resources occupied by the second reference signal resource group in the time domain.

As an embodiment, the time domain resource occupied by the second reference signal resource group in the time domain belongs to the second time window.

As an embodiment, the second time window includes time domain resources occupied in the time domain by any reference signal resource in the second reference signal resource group.

As an embodiment, the time domain resource occupied by any one reference signal resource in the second reference signal resource group in the time domain belongs to the second time window.

As an embodiment, the time domain resource occupied by any one reference signal resource in the second reference signal resource group in the time domain belongs to one time domain resource block in the plurality of time domain resource blocks included in the second time window.

As an embodiment, the time domain resource occupied by any one of the reference signal resources in the second reference signal resource group in the time domain is one of the plurality of time domain resource blocks included in the second time window.

As an embodiment, the second time window relates to the first time domain resource block.

As an embodiment, the first time domain resource block is used to determine the second time window.

As an embodiment, the first time domain resource block is used to determine the first time window and the second time window.

As an embodiment, the start of the second time window is related to the first time domain resource block.

As an embodiment, the expiration of the second time window is related to the first time domain resource block.

As an embodiment, the first time domain resource block is used to determine the start of the second time window.

As an embodiment, the first time domain resource block is used to determine a cutoff of the second time window.

As an embodiment, the second time window includes a first time domain resource block of the plurality of time domain resource blocks being advanced by a plurality of time domain resource blocks from the first time domain resource block.

As an embodiment, the second time window comprises a last time domain resource block of the plurality of time domain resource blocks being at least one time domain resource block later than the first time domain resource block.

As an embodiment, the last time domain resource block of the plurality of time domain resource blocks comprised by the first time window is at least one time domain resource block after the first time domain resource block.

As an embodiment, the last time domain resource block of the plurality of time domain resource blocks comprised by the first time window is a time domain resource block later than the first time domain resource block.

As an embodiment, the first time window includes a first time slot of the plurality of time slots being a plurality of time slots earlier than the first time domain resource block.

As an embodiment, the first time window includes a first time slot of the plurality of time slots that is a plurality of time slots later than the first time domain resource block.

As an embodiment, the first time domain resource block is used to determine a second time domain resource block, which is used to determine the second time window.

As an embodiment, the first time domain resource block is used to determine a second time domain resource block, which is used to determine the first time window and the second time window.

As an embodiment, the first time domain resource block of the plurality of time domain resource blocks included in the second time window is advanced by a time domain resource block than the second time domain resource block, the last time domain resource block of the plurality of time domain resource blocks included in the second time window is delayed by b time domain resource blocks than the second time domain resource block, a is a positive integer, and b is a non-negative integer.

As an embodiment, the first time slot of the plurality of time slots included in the second time window is a time slots earlier than the second time domain resource block, and the last time slot of the plurality of time slots included in the second time window is b time slots later than the second time domain resource block, a is a positive integer, and b is a non-negative integer.

As an embodiment, the second time window is [ n-a, n+b ], n is an index of the second time domain resource block in the plurality of time domain resource blocks included in the first resource pool, and a is a positive integer greater than 1.

As an embodiment, the length of the second time window is a+b+1.

As an embodiment, the length of the second time window is equal to 1000.

As an embodiment, the length of the second time window is equal to 1000×2 ^μ, μ relates to the subcarrier spacing in the first resource pool.

As an embodiment, b is equal to 0.

As an embodiment, b is a positive integer.

As an embodiment, the sum of a, b and 1 is equal to 1000.

As an embodiment, the sum of b and 1 is equal to 1000×2 ^μ, μ is related to the subcarrier spacing in the first resource pool.

As an embodiment, the second time window comprises the first time window.

As an embodiment, the second time window comprises the first time window and the second time sub-window.

As an embodiment, the second time sub-window comprises b+1 time domain resource blocks.

As an embodiment, the second time sub-window comprises b+1 time slots.

As an embodiment, the second time sub-window is [ n, n+b ], n being an index of the second target time domain resource block.

As an embodiment, the length of the first time window is equal to the sum of the length of the first time window and the length of the second time sub-window.

As an embodiment, b is equal to 0, and the length of the second time sub-window is 1.

Example 10

Embodiment 10 illustrates a flow chart of determining whether to transmit a first positioning reference signal on a first time domain resource according to one embodiment of the application, as shown in fig. 10.

In embodiment 10, a first channel busy ratio is measured in step S1001; determining a first maximum channel occupancy ratio in step S1002; evaluating the first channel duty cycle in step S1003; in step S1004, it is determined whether the first channel occupancy ratio is not greater than the first maximum channel occupancy ratio; when the first channel occupancy ratio is not greater than the first channel occupancy ratio, step S1005 is executed to send a first positioning reference signal on the first time domain resource block; when the first channel occupancy ratio is greater than the first channel occupancy ratio, step S1006 is performed to discard the transmission of the first positioning reference signal on the first time domain resource block; wherein the first information busy ratio is used to determine the first maximum channel occupancy ratio.

In embodiment 10, a first channel busy ratio is measured in step S1001; determining a first maximum channel occupancy ratio in step S1002; evaluating the first channel duty cycle in step S1003; in step S1004, it is determined whether the first channel occupancy ratio is not greater than the first maximum channel occupancy ratio; the first channel occupation ratio is not greater than the first channel occupation ratio, step S1005 is executed, and a first positioning reference signal is sent on a first time domain resource block; or the first channel occupancy ratio is greater than the first channel occupancy ratio, step S1006 is executed to discard sending the first positioning reference signal on the first time domain resource block; wherein the first information busy ratio is used to determine the first maximum channel occupancy ratio.

As an embodiment, the step S1001 includes measuring the first channel busy ratio within the first time window.

As an embodiment, the step S1001 includes measuring the first channel busy ratio over the first set of reference signal resources within the first time window.

As an embodiment, the step S1003 includes evaluating the first channel occupancy within the second time window.

As an embodiment, the step S1003 includes evaluating the first channel occupancy in the second set of reference signal resources within the second time window.

As an embodiment, the first channel busy ratio is one SL CBR.

As an embodiment, the first channel busy ratio is one SL-PRS CBR.

As an embodiment, the first channel busy ratio is a ratio of a plurality of rsis (RECEIVED SIGNAL STRENGTH Indicator) measured on the plurality of reference signal resources included in the first reference signal resource group, respectively, exceeding a first threshold.

For one embodiment, the definition of the first channel busy ratio is described in section 5.1.27 of 3gpp ts 38.215.

As an embodiment, the RSSI measured on any reference signal resource in the first set of reference signal resources is a linear average of all received powers observed over all REs comprised by the reference signal resource.

As one embodiment, any RSSI of the plurality of RSSIs comprises a SL RSSI.

As an embodiment, the unit of any RSSI in the plurality of RSSIs is dBm (millidecibel).

For one embodiment, the definition of any RSSI of the plurality of RSSIs is described in section 5.1.25 of 3gpp ts 38.215.

As an embodiment, the first threshold is configured.

As an embodiment, the first threshold is preconfigured.

As an embodiment, the first threshold is in mW (milliwatt).

As an embodiment, the unit of the first threshold is W (watts).

As one embodiment, the first threshold is in dBm (millidecibel).

As an embodiment, the first threshold is in dB (decibel).

As an embodiment, the plurality of reference signal resources included in the first reference signal resource group are M reference signal resources, M RSSIs are measured on the M reference signal resources in the first reference signal resource group, respectively, and any one of the M RSSIs is an RSSI of the plurality of RSSIs, and M is a positive integer greater than 1.

As one embodiment, the M RSSIs include any one of M1 RSSIs that is greater than the first threshold, and M1 is a non-negative integer.

As an embodiment, any one RSSI of M1 RSSIs included in the M RSSIs exceeds the first threshold, and M1 is a non-negative integer.

As an embodiment, the M RSSIs include only any RSSI of the M1 RSSIs exceeding the first threshold.

As one embodiment, any RSSI of M1 RSSIs of the M RSSIs exceeds the first threshold, any RSSI of the M RSSIs other than the M1 RSSIs does not exceed the first threshold, and M1 is a non-negative integer.

As one embodiment, any RSSI of M1 RSSIs of the M RSSIs is greater than the first threshold, any RSSI of the M RSSIs other than the M1 RSSIs is less than or equal to the first threshold, and M1 is a non-negative integer.

As one embodiment, the first channel busy ratio is equal to the ratio of M1 to M.

As one embodiment, the first channel busy ratio is a quotient of the M1 divided by the M.

As one embodiment, the first channel busy ratio is a proportion of the M RSSIs that exceeds the first threshold.

As one embodiment, the first channel busy ratio is a proportion of RSSI of the M RSSIs that exceeds the first threshold.

As one embodiment, the first channel busy ratio is a proportion of the M RSSIs measured within the first time window exceeding the first threshold.

As one embodiment, the first channel busy ratio is a proportion of reference signal resources for which the RSSI measured on the M reference signal resources exceeds the first threshold.

As an embodiment, any RSSI of the M1 RSSIs measured on M1 reference signal resources of the M reference signal resources, respectively, exceeds the first threshold.

As an embodiment, any RSSI of the M1 RSSIs measured on M1 reference signal resources of the M reference signal resources respectively exceeds the first threshold, and the RSSI measured on any reference signal resource of the M reference signal resources other than the M1 reference signal resources does not exceed the first threshold.

As an embodiment, the first channel busy ratio is a ratio of the M1 RSSIs to the M RSSIs.

As an embodiment, the first channel busy ratio is a ratio of the M1 reference signal resources to the M reference signal resources.

As an embodiment, the first channel busy ratio is a fraction.

As one example, the first channel busy ratio is a percentage.

As an embodiment, the first channel occupancy is a SL CR.

As an embodiment, the first channel occupancy is a SL-PRS CR.

As an embodiment, the first channel occupancy ratio is a ratio of a sum of a number of reference signal resources used for transmission in the first time window and a number of reference signal resources granted in the second time sub-window to all reference signal resources in the second time window.

As an embodiment, the first channel occupancy ratio is a ratio of a sum of a number of reference signal resources used for transmission in the first time window and a number of reference signal resources granted in the second time sub-window to a number of all reference signal resources configured in the second time window.

As an embodiment, the first channel occupancy ratio is a ratio of a sum of a number of reference signal resources used for transmission in the first time window and a number of reference signal resources granted in the second time sub-window to a number of all reference signal resources included in the second reference signal resource group in the second time window.

As an embodiment, the first channel occupancy ratio is a ratio of a sum of a number of frequency domain resource blocks occupied by reference signal resources used for transmission in the first time window and a number of frequency domain resource blocks occupied by reference signal resources granted in the second time sub-window to frequency domain resource blocks occupied by all reference signal resources in the second time window.

As an embodiment, the first channel occupancy ratio is a ratio of a sum of a number of frequency domain resource blocks occupied by reference signal resources used for transmission in the first time window and a number of frequency domain resource blocks occupied by reference signal resources granted in the second time sub-window to a number of frequency domain resource blocks occupied by all reference signal resources included in the second reference signal resource group in the second time window.

For an embodiment, the definition of the first channel occupancy ratio is described in section 5.1.26 of 3gpp ts 38.215.

As an embodiment, the first channel duty cycle is a fraction.

As an embodiment, the first channel duty cycle is one percentage.

As one embodiment, the maximum channel occupancy list includes a plurality of maximum channel occupancy ratios, which are respectively in one-to-one correspondence with a plurality of channel busy ratio ranges (ranges); the first maximum channel occupancy ratio is one of the plurality of maximum channel occupancy ratios.

As one embodiment, the first channel busy ratio is used to determine the first maximum channel occupancy ratio.

As one embodiment, the first channel busy ratio is used to determine the first maximum channel occupancy ratio from the plurality of maximum channel occupancy ratios included in the maximum channel occupancy ratio list.

As one embodiment, the first channel busy ratio belongs to one of the plurality of channel busy ratio ranges, and the one channel busy ratio range to which the first channel busy ratio belongs is used to determine the first maximum channel occupancy ratio from the plurality of maximum channel occupancy ratios included in the maximum channel occupancy list.

As one embodiment, the first channel occupancy ratio is not greater than the first maximum channel occupancy ratio.

As one embodiment, the first channel occupancy ratio is smaller than the first maximum channel occupancy ratio.

As an embodiment, the first channel occupancy ratio is equal to the first maximum channel occupancy ratio.

As one embodiment, the first channel occupancy ratio is greater than the first maximum channel occupancy ratio.

As one embodiment, the first channel occupancy is not greater than the first maximum channel occupancy, and the first positioning reference signal is transmitted on the first target time domain resource block.

As an embodiment, the first channel occupancy is greater than the first maximum channel occupancy, and the first positioning reference signal is relinquished from transmission on the first target time domain resource block.

As one embodiment, the first positioning reference signal is transmitted on the first target time domain resource block when the first channel occupancy is not greater than the first maximum channel occupancy.

Example 11

Embodiment 11 illustrates a block diagram of a processing device for use in a first node, as shown in fig. 11. In embodiment 11, the first node apparatus processing device 1100 is mainly composed of a first receiver 1101, a first processor 1102, and a first transmitter 1103.

As an example, the first receiver 1101 includes at least one of the antenna 452, the transmitter/receiver 454, the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, and the memory 460 of fig. 4 of the present application.

As one example, the first processor 1102 includes at least one of the multi-antenna receive processor 458, the receive processor 456, the controller/processor 459, and the memory 460 of fig. 4 of the present application.

As one example, the first transmitter 1103 includes at least one of the antenna 452, the transmitter/receiver 454, the multi-antenna transmitter processor 457, the transmit processor 468, the controller/processor 459, the memory 460, and the data source 467 of fig. 4 of the present application.

In embodiment 11, the first receiver 1101 measures a first channel busy ratio over a first set of reference signal resources within a first time window; the first processor 1102 determines whether to transmit a first positioning reference signal on a first time domain resource block; the first resource pool comprises Q reference signal resource sets, any one of the Q reference signal resource sets comprises a plurality of reference signal resources, the RE numbers occupied by any two of the Q reference signal resource sets are equal, any one of the Q reference signal resource sets respectively belongs to the RE numbers occupied by two of the two reference signal resource sets are different, and Q is a positive integer greater than 1; the first reference signal resource group comprises a plurality of reference signal resources, the first reference signal resource group belonging to one of the Q reference signal resource sets; the first channel busy ratio is used to determine whether to transmit the first positioning reference signal on the first time domain resource block; the first time domain resource block is used to determine the first time window.

As one embodiment, the Q reference signal resource sets are respectively in one-to-one correspondence with Q levels; the Q grades respectively correspond to Q unequal positive integers; the Q levels are respectively used for determining the RE number occupied by any reference signal resource in the Q reference signal resource sets; the REs occupied by one of the reference signal resources in the set of reference signal resources corresponding to one of the lower levels is a subset of the REs occupied by one of the reference signal resources in the set of reference signal resources corresponding to one of the higher levels.

As an embodiment, the reference signal resource in any one of the Q reference signal resource sets belongs to at least one PRB in the frequency domain, and the reference signal resource in any one of the Q reference signal resource sets belongs to an even number of consecutive multicarrier symbols in the time domain.

As an embodiment, the first channel busy ratio is a ratio of more than a first threshold among the RSSIs measured on the plurality of reference signal resources respectively included in the first reference signal resource group, and the RSSI measured on any one of the reference signal resources in the first reference signal resource group is a linear average of all the received powers observed on all REs included in the reference signal resource.

As an embodiment, the first processor 1102 evaluates a first channel occupancy in a second set of reference signal resources within a second time window; the first time domain resource block is used to determine the second time window; the second reference signal resource group and the first reference signal resource group belong to the same reference signal resource set; the first channel busy ratio is used to determine the first maximum channel occupancy ratio; the first channel occupancy is not greater than the first maximum channel occupancy is used to determine whether to transmit the first positioning reference signal on the first time domain resource block.

As an embodiment, the first transmitter 1103 sends the first positioning reference signal on the first time domain resource block; the first channel occupancy ratio is not greater than the first maximum channel occupancy ratio.

As an embodiment, the first node 1100 is a user equipment.

As an embodiment, the first node 1100 is a relay node.

As an embodiment, the first node 1100 is a roadside device.

Example 12

Embodiment 12 illustrates a block diagram of a processing device for use in a second node, as shown in fig. 12. In embodiment 12, the second node apparatus processing device 1200 is mainly composed of the second receiver 1201.

As an example, the second receiver 1201 includes at least one of the antenna 420, the transmitter/receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller/processor 475, and the memory 476 of fig. 4 of the present application.

In embodiment 12, the second receiver 1201 receives a first positioning reference signal on a first time domain resource block; the first resource pool comprises Q reference signal resource sets, any one of the Q reference signal resource sets comprises a plurality of reference signal resources, the RE numbers occupied by any two of the Q reference signal resource sets are equal, any one of the Q reference signal resource sets respectively belongs to the RE numbers occupied by two of the two reference signal resource sets are different, and Q is a positive integer greater than 1; the resources occupied by the first positioning reference signal include at least one reference signal resource in one of the Q reference signal resource sets; the first time domain resource block belongs to a time domain resource occupied by the first resource pool; the first positioning reference signal is used to generate first position information.

As an embodiment, the second node 1200 is a user equipment.

As an embodiment, the second node 1200 is a relay node.

As an embodiment, the second node 1200 is a roadside device.

Those of ordinary skill in the art will appreciate that all or a portion of the steps of the above-described methods may be implemented by a program that instructs associated hardware, and the program may be stored on a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment may be implemented in a hardware form or may be implemented in a software functional module form, and the present application is not limited to any specific combination of software and hardware. The first node device in the application comprises, but is not limited to, a mobile phone, a tablet computer, a notebook computer, an internet card, a low-power consumption device, an eMTC device, an NB-IoT device, a vehicle-mounted communication device, an aircraft, an airplane, an unmanned plane, a remote control airplane and other wireless communication devices. The second node device in the application comprises, but is not limited to, a mobile phone, a tablet computer, a notebook computer, an internet card, a low-power consumption device, an eMTC device, an NB-IoT device, a vehicle-mounted communication device, an aircraft, an airplane, an unmanned plane, a remote control airplane and other wireless communication devices. The user equipment or the UE or the terminal in the application comprises, but is not limited to, mobile phones, tablet computers, notebooks, network cards, low-power consumption equipment, eMTC equipment, NB-IoT equipment, vehicle-mounted communication equipment, aircrafts, planes, unmanned planes, remote control planes and other wireless communication equipment. The base station device or the base station or the network side device in the present application includes, but is not limited to, wireless communication devices such as macro cell base stations, micro cell base stations, home base stations, relay base stations, enbs, gnbs, transmission receiving nodes TRP, GNSS, relay satellites, satellite base stations, air base stations, and the like.

The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A first node for wireless communication, comprising:

2. The first node of claim 1, wherein the Q sets of reference signal resources are respectively in one-to-one correspondence with Q levels; the Q grades respectively correspond to Q unequal positive integers; the Q levels are respectively used for determining the RE number occupied by any reference signal resource in the Q reference signal resource sets; the REs occupied by one of the reference signal resources in the set of reference signal resources corresponding to one of the lower levels is a subset of the REs occupied by one of the reference signal resources in the set of reference signal resources corresponding to one of the higher levels.

3. The first node according to claim 1 or 2, wherein reference signal resources in any one of the Q sets of reference signal resources belong to at least one PRB in the frequency domain and reference signal resources in any one of the Q sets of reference signal resources belong to an even number of consecutive multicarrier symbols in the time domain.

4. A first node according to any of claims 1-3, characterized in that the first channel busy ratio is the ratio of the measured plurality of RSSIs, respectively, over the plurality of reference signal resources comprised by the first reference signal resource group exceeding a first threshold, the measured RSSI on any of the reference signal resources in the first reference signal resource group being the linear average of all received powers observed over all REs comprised by the reference signal resources.

5. The first node according to any of claims 1 to 4, comprising:

the first processor evaluating a first channel occupancy ratio in a second set of reference signal resources within a second time window;

6. The first node according to any of claims 1 to 5, comprising:

the first transmitter transmitting the first positioning reference signal on the first time domain resource block;

wherein the first channel occupancy ratio is not greater than the first channel occupancy ratio.

7. A second node for wireless communication, comprising:

8. A method in a first node for wireless communication, comprising:

measuring a first channel busy ratio over a first set of reference signal resources within a first time window;

9. The method of claim 8, wherein the Q sets of reference signal resources are respectively in one-to-one correspondence with Q levels; the Q grades respectively correspond to Q unequal positive integers; the Q levels are respectively used for determining the RE number occupied by any reference signal resource in the Q reference signal resource sets; the REs occupied by one of the reference signal resources in the set of reference signal resources corresponding to one of the lower levels is a subset of the REs occupied by one of the reference signal resources in the set of reference signal resources corresponding to one of the higher levels.

10. A method in a second node for wireless communication, comprising: