CN117835299A

CN117835299A - Method and apparatus for measuring signals based on their priority

Info

Publication number: CN117835299A
Application number: CN202211194248.7A
Authority: CN
Inventors: 李芃茹; 熊琦; 周淼; 孙霏菲
Original assignee: Samsung Electronics Co Ltd
Current assignee: Samsung Electronics Co Ltd
Priority date: 2022-09-28
Filing date: 2022-09-28
Publication date: 2024-04-05
Also published as: WO2024071712A1

Abstract

The application provides a signal-based priority measurement signal method and device, wherein a method executed by first User Equipment (UE) in a communication system is disclosed, comprising the following steps: receiving configuration information about a first unit for measurement of a first signal; obtaining a priority relation between the first signal and the second signal and/or the channel, and/or obtaining a priority relation between the first signal of the second UE and the first signal of the third UE; and measuring a first signal within the first unit based on the determined priority relationship.

Description

Method and apparatus for measuring signals based on their priority

Technical Field

The present disclosure relates to wireless communication technology, and more particularly, to a method and apparatus for measuring signals based on priorities of the signals.

Background

In order to meet the increasing demand for wireless data communication services since the deployment of 4G communication systems, efforts have been made to develop improved 5G or quasi 5G communication systems. Therefore, a 5G or quasi 5G communication system is also referred to as a "super 4G network" or a "LTE-after-system".

The 5G communication system is implemented in a higher frequency (millimeter wave) band, for example, a 60GHz band, to achieve a higher data rate. In order to reduce propagation loss of radio waves and increase transmission distance, beamforming, massive Multiple Input Multiple Output (MIMO), full-dimensional MIMO (FD-MIMO), array antennas, analog beamforming, massive antenna techniques are discussed in 5G communication systems.

Further, in the 5G communication system, development of system network improvement is being performed based on advanced small cells, cloud Radio Access Networks (RANs), ultra dense networks, device-to-device (D2D) communication, wireless backhaul, mobile networks, cooperative communication, cooperative multipoint (CoMP), receiving-end interference cancellation, and the like.

In 5G systems, hybrid FSK and QAM modulation (FQAM) and Sliding Window Superposition Coding (SWSC) as Advanced Code Modulation (ACM), and Filter Bank Multicarrier (FBMC), non-orthogonal multiple access (NOMA) and Sparse Code Multiple Access (SCMA) as advanced access technologies have been developed.

Disclosure of Invention

There is a need in the art to provide a method and apparatus for signal-based priority measurement of signals.

According to an aspect of the present disclosure, there is provided a method performed by a first user equipment, UE, in a communication system, comprising: receiving configuration information about a first unit for measurement of a first signal; obtaining a priority relation between the first signal and the second signal and/or the channel, and/or obtaining a priority relation between the first signal of the second UE and the first signal of the third UE; and measuring a first signal within the first unit based on the determined priority relationship.

According to an embodiment of the present disclosure, obtaining a priority relationship of a first signal and a second signal and/or channel comprises: the first UE receives information about a value of a priority of the first signal and information about a value of a priority of the second signal and/or channel, and determines a priority relationship of the priority of the first signal and the second signal and/or channel based on the received information.

According to an embodiment of the present disclosure, the priority relation of the first signal and the second signal and/or the channel comprises: in case the first UE is able to process the first signal in parallel with the second signal and/or channel, the priority of the first signal is the same as the priority of the second signal and/or channel; or the priority relation of the first signal and the second signal and/or channel is determined based on the value of the priority of the preconfigured first signal and the value of the priority of the preconfigured second signal and/or channel; or the priority relation of the first signal and the second signal and/or channel is determined based on the received value of the priority of the first signal and the preconfigured value of the priority of the second signal and/or channel; or the priority relationship of the first signal and the second signal and/or channel is determined based on the first UE capability; or the priority relation of the first signal and the second signal and/or channel is based on the information of the UE capability and the received information about the priority.

According to an embodiment of the present disclosure, determining a priority relationship of a first signal and a second signal and/or channel comprises: the method comprises the steps that a first UE reports information about the use condition of a channel, and under the condition that the first UE receives a threshold value related to the use condition of the channel, the priority relation between the priority of a first signal and other signals and/or the priority relation of the channel are determined based on the information about the use condition of the channel and the threshold value related to the use condition of the channel; or in case the UE does not receive a threshold value associated with the usage of the channel, determining that the priority of the first signal is higher than the priority of the other signals and/or channels.

According to an embodiment of the present disclosure, determining a priority relationship of a first signal and a second signal and/or channel comprises: determining that the priority of the first signal is lower than the priority of the second signal and/or channel; or determining a priority relation between the first signal and the second signal and/or the channel based on the information of the threshold value related to the priority of the second signal and/or the channel and the value of the priority of the first signal under the condition that the threshold value related to the priority of the second signal and/or the channel is received; or in case no threshold value related to the priority of the second signal and/or channel is received, determining that the priority of the first signal is higher than the priority of the second signal and/or channel; or determining that the priority of the first signal is lower than the priority of the physical sidelink feedback channel PSFCH.

According to an embodiment of the present disclosure, the value of the priority of the first signal of the second UE and the value of the priority of the first signal of the third UE are configured based on the time order in which the requests sent by the second UE and the third UE to configure the first unit arrive at the network node; or the value of the priority of the first signal of the second UE and the value of the priority of the first signal of the third UE are configured based on the moving speeds of the second UE and the third UE; or the value of the priority of the first signal of the second UE and the value of the priority of the first signal of the third UE are configured based on the information of the timer times corresponding to the first signals of the second UE and the third UE.

According to an embodiment of the present disclosure, measuring a first signal within the first unit based on the determined priority relationship comprises: based on the determined priority relation, resources for transmitting the first signal are determined, and within the first unit, the determined resources are measured.

According to an embodiment of the present disclosure, determining resources for transmitting a first signal based on the determined priority relationship comprises: when the priority of the first signal of the second UE is higher than the priority of the first signal of the third UE and/or the priority of the second signal and/or the channel, resources reserved for the first signal of the third UE and/or the second signal and/or the channel are selected for the first signal of the second UE, and resource reselection of the selected resources is triggered; or when the priority of the first signal of the second UE is lower than the priority of the first signal of the third UE, and/or the priority of the second signal and/or channel, the resources reserved for the first signal of the second UE are selected for the first signal and/or the second signal and/or channel of the third UE, and the selected resource reselection is triggered.

According to an embodiment of the present disclosure, determining the resources of the first signal based on the determined priority relationship comprises: when the priority of the first signal is lower than the priority of the second signal and/or channel or physical sidelink feedback channel PSFCH, the resource reserved for the first signal is selected for the second signal and/or channel or PSFCH, and the resource reselection of the selected resource is triggered; or when the priority of the first signal is lower than the priority of all or part of the physical sidelink shared channel PSSCH, selecting resources reserved for the first signal for PSSCH, and triggering the resource reselection of the selected resources; or when the priority of the first signal is higher than the priority of all or part of the PSSCH, the resource reserved for all or part of the PSSCH is selected for the first signal, and resource reselection of the selected resource is triggered.

According to an embodiment of the present disclosure, in case one or more first signals overlap in time with a plurality of non-overlapping second signals and/or channels: when at least one of the one or more first signals has a priority higher than that of all the second signals and/or channels, resources reserved for the plurality of non-overlapping second signals and/or channels are selected for the one or more first signals, and resource reselection of the selected resources is triggered; or when the priority of at least one second signal and/or channel is higher than the priority of all first signals, resources reserved for one or more first signals are selected for a plurality of non-overlapping second signals and/or channels, and resource reselection of the selected resources is triggered.

According to embodiments of the present disclosure, in the event that one first signal overlaps in time with one or more non-overlapping second signals and/or channels: the resources reserved for one or more non-overlapping second signals and/or channels are selected for one first signal when the priority of the one first signal is higher than the priority of all second signals and/or channels, the resource reselection of the selected resources is triggered, and the resources reserved for one first signal are selected for one or more non-overlapping second signals and/or channels when the priority of at least one non-overlapping second signal and/or channel is higher than the priority of the one first signal.

According to an embodiment of the disclosure, the first signal is a signal or a signal resource or a set of signal resources for positioning, wherein the first unit comprises at least one of: a measurement interval for the first signal measurement; a processing window for the first signal measurement; a time domain unit for the first signal measurement; a duration L of starting from a starting position S of a resource for transmission of the first signal or a length of time domain resources occupied by M first signals starting from the starting position S of a resource for transmission of the first signal, wherein S, L, M is a real number greater than 0.

According to an embodiment of the present disclosure, further comprising: when the first signal of the second UE overlaps with the first signal or the second signal and/or the channel of the third UE in time domain and/or frequency domain resource: in case the priority of the first signal of the second UE is higher than the priority of the first signal of the second UE and/or the channel or the third UE, the first UE expects to receive the first signal of the second UE; or in case the priority of the first signal is lower than the priority of the second signal and/or channel, the first UE expects to receive the second signal and/or channel and/or discard all or part of the first signal; or in case the priority of the first signal of the second UE is lower than the priority of the first signal of the third UE, the first UE performs at least one of: the method comprises the steps that a first signal of a second UE is not expected to be received, all or part of the first signal of the second UE is discarded, the measurement duration of a first unit is prolonged, the first UE indicates the number of the discarded first signals of the second UE to the second UE, and the first UE indicates the identification and/or the time domain resource symbol index of the discarded first signals of the second UE to the second UE; or in the case that the first signal of the second UE and the first signal of the third UE have the same priority, the first signal of any one of the second UE and the third UE is reserved with resources, the reselection of the resources of the first signals of the rest of the UEs is triggered, or according to the timer time in the configuration information of the first signals of the second UE and the third UE, the first signal of the UE with the shortest timer time is reserved with resources, and the reselection of the resources of the rest of the UEs is triggered.

According to an embodiment of the present disclosure, when a ratio of a number of first signals of the discarded second UE to a number of first signals of the configured or preconfigured second UE is greater than a third threshold value, a length L of the measurement duration is extended, wherein the measured first signals do not contain the discarded first signals.

According to an embodiment of the present disclosure, further comprising: when the priority of the first signal of the second UE is lower than that of the first signal of the third UE, the first signal of the second UE on the overlapped time domain resource and/or the overlapped frequency domain resource is muted and/or deactivated by the second UE; the second UE configures or activates the same number of first signals as the discarded second UE indicated by the first UE or reserves the same number of resources as the discarded second UE indicated by the first UE.

According to an embodiment of the present disclosure, further comprising: the method comprises the steps that a first UE reports a measurement result of a first signal to a network node, wherein the measurement result is reported on a first physical sidelink shared channel PSSCH, a first physical uplink shared channel PUSCH, a first physical sidelink control channel PSCCH or a first physical uplink control channel PUCCH after a last time unit of a first unit; or reporting the measurement result through PSSCH or PUSCH or PSCCH or PUCCH before the end of the first unit from the (n+1) th time unit under the condition that the measurement of the first signal is completed by the previous N time units of the first unit; or under the condition that the first signal is measured in X first units, reporting the measurement result after the X first units, wherein X is an integer greater than or equal to 1, and the measurement result comprises the measurement results of the X first units; or after measuring the first signal by using the last time unit of the first unit, the first UE requests uplink transmission resources and reports the measurement result on the configured resources through PSSCH or PUSCH or PSCCH or PUCCH.

According to an embodiment of the present disclosure, the measurement results include at least one of: measuring the received signal strength of the path; measuring a downstream departure angle of the path; the time difference of the received signals of the measurement paths of the serving cell and the reference cell; the UE receives the transmission time difference.

According to an embodiment of the present disclosure, the priority of reporting the measurement result is the same as the highest priority among the priorities of the plurality of first signals measured in the P first units, P being an integer greater than 1, or the priority of reporting the measurement result is the same as the highest priority among the first signals in the last first unit performing the measurement in the case where the measurement result is measured based on the plurality of first units.

According to an aspect of the present disclosure, there is provided a user equipment, UE, in a wireless communication system, the UE comprising: a transceiver configured to receive a transmission signal; and a controller coupled with the transceiver and configured to control the UE to perform a method according to an embodiment of the present disclosure.

The method and the device for measuring the signals based on the priority of the signals can solve the conflict among the signals, reasonably allocate resources for the signals, or rapidly and accurately measure the signals.

Drawings

Fig. 1 illustrates an example wireless network in accordance with various embodiments of the present disclosure;

fig. 2a and 2b illustrate example wireless transmit and receive paths according to this disclosure;

fig. 3a shows an example user equipment UE according to the present disclosure;

fig. 3b illustrates an example base station according to this disclosure;

fig. 4 is a flow chart of a method according to an embodiment of the present disclosure.

Detailed Description

The following description with reference to the accompanying drawings is provided to facilitate a thorough understanding of the various embodiments of the present disclosure as defined by the claims and their equivalents. The description includes various specific details to facilitate understanding but should be considered exemplary only. Accordingly, one of ordinary skill in the art will recognize that various changes and modifications of the various embodiments described herein can be made without departing from the scope and spirit of the present disclosure. In addition, descriptions of well-known functions and constructions may be omitted for clarity and conciseness.

The terms and phrases used in the following specification and claims are not limited to their dictionary meanings, but are used only by the inventors to enable a clear and consistent understanding of the disclosure. Accordingly, it should be apparent to those skilled in the art that the following descriptions of the various embodiments of the present disclosure are provided for illustration only and not for the purpose of limiting the disclosure as defined by the appended claims and their equivalents.

It should be understood that the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to "a component surface" includes reference to one or more such surfaces.

The terms "comprises" or "comprising" may refer to the presence of a corresponding disclosed function, operation or component that may be used in various embodiments of the present disclosure, rather than to the presence of one or more additional functions, operations or features. Furthermore, the terms "comprises" or "comprising" may be interpreted as referring to certain features, numbers, steps, operations, constituent elements, components, or combinations thereof, but should not be interpreted as excluding the existence of one or more other features, numbers, steps, operations, constituent elements, components, or combinations thereof.

The term "or" as used in the various embodiments of the present disclosure includes any listed term and all combinations thereof. For example, "a or B" may include a, may include B, or may include both a and B.

Unless defined differently, all terms (including technical or scientific terms) used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains. The general terms as defined in the dictionary are to be construed to have meanings consistent with the context in the relevant technical field, and should not be interpreted in an idealized or overly formal manner unless expressly so defined in the present disclosure.

The technical solution of the embodiment of the application can be applied to various communication systems, for example: global system for mobile communications (global system for mobile communications, GSM), code division multiple access (code division multiple access, CDMA) system, wideband code division multiple access (wideband code division multiple access, WCDMA) system, general packet radio service (general packet radio service, GPRS), long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD), universal mobile telecommunications system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX) communication system, fifth generation (5th generation,5G) system, or New Radio (NR), and the like. In addition, the technical scheme of the embodiment of the application can be applied to future-oriented communication technologies, such as 6G and the like.

Fig. 1 illustrates an example wireless network 100 in accordance with various embodiments of the present disclosure. The embodiment of the wireless network 100 shown in fig. 1 is for illustration only. Other embodiments of the wireless network 100 can be used without departing from the scope of this disclosure.

The wireless network 100 includes a gndeb (gNB) 101, a gNB 102, and a gNB 103.gNB 101 communicates with gNB 102 and gNB 103. The gNB 101 is also in communication with at least one Internet Protocol (IP) network 130, such as the Internet, a private IP network, or other data network.

Other well-known terms, such as "base station" or "access point", can be used instead of "gnob" or "gNB", depending on the network type. For convenience, the terms "gNodeB" and "gNB" are used in this patent document to refer to the network infrastructure components that provide wireless access for remote terminals. Also, other well-known terms, such as "mobile station", "subscriber station", "remote terminal", "wireless terminal" or "user equipment", can be used instead of "user equipment" or "UE", depending on the type of network. For convenience, the terms "user equipment" and "UE" are used in this patent document to refer to a remote wireless device that wirelessly accesses the gNB, whether the UE is a mobile device (such as a mobile phone or smart phone) or a fixed device (such as a desktop computer or vending machine) as is commonly considered.

The gNB 102 provides wireless broadband access to the network 130 for a first plurality of User Equipment (UEs) within the coverage area 120 of the gNB 102. The first plurality of UEs includes: UE 111, which may be located in a Small Business (SB); UE 112, which may be located in enterprise (E); UE 113, may be located in a WiFi Hotspot (HS); UE 114, which may be located in a first home (R); UE 115, which may be located in a second home (R); UE 116 may be a mobile device (M) such as a cellular telephone, wireless laptop, wireless PDA, etc. The gNB 103 provides wireless broadband access to the network 130 for a second plurality of UEs within the coverage area 125 of the gNB 103. The second plurality of UEs includes UE 115 and UE 116. In some embodiments, one or more of the gNBs 101-103 are capable of communicating with each other and with UEs 111-116 using 5G, long Term Evolution (LTE), LTE-A, wiMAX, or other advanced wireless communication technology.

The dashed lines illustrate the approximate extent of coverage areas 120 and 125, which are shown as approximately circular for illustration and explanation purposes only. It should be clearly understood that coverage areas associated with the gnbs, such as coverage areas 120 and 125, can have other shapes, including irregular shapes, depending on the configuration of the gnbs and the variations in the radio environment associated with natural and man-made obstructions.

As described in more detail below, one or more of gNB 101, gNB 102, and gNB 103 includes a 2D antenna array as described in embodiments of the disclosure. In some embodiments, one or more of gNB 101, gNB 102, and gNB 103 support codebook designs and structures for systems with 2D antenna arrays.

Although fig. 1 shows one example of a wireless network 100, various changes can be made to fig. 1. For example, the wireless network 100 can include any number of gnbs and any number of UEs in any suitable arrangement. Also, the gNB 101 is capable of communicating directly with any number of UEs and providing those UEs with wireless broadband access to the network 130. Similarly, each gNB 102-103 is capable of communicating directly with the network 130 and providing direct wireless broadband access to the network 130 to the UE. Furthermore, the gnbs 101, 102, and/or 103 can provide access to other or additional external networks (such as external telephone networks or other types of data networks).

Fig. 2a and 2b illustrate example wireless transmit and receive paths according to this disclosure. In the following description, transmit path 200 can be described as implemented in a gNB (such as gNB 102), while receive path 250 can be described as implemented in a UE (such as UE 116). However, it should be understood that the receive path 250 can be implemented in the gNB and the transmit path 200 can be implemented in the UE. In some embodiments, receive path 250 is configured to support codebook designs and structures for systems with 2D antenna arrays as described in embodiments of the present disclosure.

The transmit path 200 includes a channel coding and modulation block 205, a serial-to-parallel (S-to-P) block 210, an inverse N-point fast fourier transform (IFFT) block 215, a parallel-to-serial (P-to-S) block 220, an add cyclic prefix block 225, and an up-converter (UC) 230. The receive path 250 includes a down-converter (DC) 255, a remove cyclic prefix block 260, a serial-to-parallel (S-to-P) block 265, an N-point Fast Fourier Transform (FFT) block 270, a parallel-to-serial (P-to-S) block 275, and a channel decoding and demodulation block 280.

In transmit path 200, a channel coding and modulation block 205 receives a set of information bits, applies coding, such as Low Density Parity Check (LDPC) coding, and modulates input bits, such as with Quadrature Phase Shift Keying (QPSK) or Quadrature Amplitude Modulation (QAM), to generate a sequence of frequency domain modulation symbols. A serial-to-parallel (S-to-P) block 210 converts (such as demultiplexes) the serial modulation symbols into parallel data to generate N parallel symbol streams, where N is the number of IFFT/FFT points used in the gNB 102 and UE 116. The N-point IFFT block 215 performs an IFFT operation on the N parallel symbol streams to generate a time-domain output signal. Parallel-to-serial block 220 converts (such as multiplexes) the parallel time-domain output symbols from N-point IFFT block 215 to generate a serial time-domain signal. The add cyclic prefix block 225 inserts a cyclic prefix into the time domain signal. Up-converter 230 modulates (such as up-converts) the output of add cyclic prefix block 225 to an RF frequency for transmission via a wireless channel. The signal can also be filtered at baseband before being converted to RF frequency.

The RF signal transmitted from the gNB 102 reaches the UE116 after passing through the wireless channel, and an operation inverse to that at the gNB 102 is performed at the UE 116. Down-converter 255 down-converts the received signal to baseband frequency and remove cyclic prefix block 260 removes the cyclic prefix to generate a serial time domain baseband signal. Serial-to-parallel block 265 converts the time-domain baseband signal to a parallel time-domain signal. The N-point FFT block 270 performs an FFT algorithm to generate N parallel frequency domain signals. Parallel-to-serial block 275 converts the parallel frequency domain signals into a sequence of modulated data symbols. The channel decoding and demodulation block 280 demodulates and decodes the modulation symbols to recover the original input data stream.

Each of the gnbs 101-103 may implement a transmit path 200 that is similar to transmitting to UEs 111-116 in the downlink and may implement a receive path 250 that is similar to receiving from UEs 111-116 in the uplink. Similarly, each of the UEs 111-116 may implement a transmit path 200 for transmitting to the gNBs 101-103 in the uplink and may implement a receive path 250 for receiving from the gNBs 101-103 in the downlink.

Each of the components in fig. 2a and 2b can be implemented using hardware alone, or using a combination of hardware and software/firmware. As a specific example, at least some of the components in fig. 2a and 2b may be implemented in software, while other components may be implemented by configurable hardware or a mixture of software and configurable hardware. For example, the FFT block 270 and IFFT block 215 may be implemented as configurable software algorithms, wherein the value of the point number N may be modified depending on the implementation.

Further, although described as using an FFT and an IFFT, this is illustrative only and should not be construed as limiting the scope of the present disclosure. Other types of transforms can be used, such as Discrete Fourier Transform (DFT) and Inverse Discrete Fourier Transform (IDFT) functions. It should be appreciated that for DFT and IDFT functions, the value of the variable N may be any integer (such as 1, 2, 3, 4, etc.), while for FFT and IFFT functions, the value of the variable N may be any integer that is a power of 2 (such as 1, 2, 4, 8, 16, etc.).

Although fig. 2a and 2b show examples of wireless transmission and reception paths, various changes may be made to fig. 2a and 2 b. For example, the various components in fig. 2a and 2b can be combined, further subdivided, or omitted, and additional components can be added according to particular needs. Also, fig. 2a and 2b are intended to illustrate examples of the types of transmit and receive paths that can be used in a wireless network. Any other suitable architecture can be used to support wireless communications in a wireless network.

Fig. 3a shows an example UE 116 according to this disclosure. The embodiment of UE 116 shown in fig. 3a is for illustration only, and UEs 111-115 of fig. 1 can have the same or similar configuration. However, the UE has a variety of configurations, and fig. 3a does not limit the scope of the present disclosure to any particular embodiment of the UE.

UE 116 includes an antenna 305, a Radio Frequency (RF) transceiver 310, transmit (TX) processing circuitry 315, a microphone 320, and Receive (RX) processing circuitry 325.UE 116 also includes speaker 330, processor/controller 340, input/output (I/O) interface 345, input device(s) 350, display 355, and memory 360. Memory 360 includes an Operating System (OS) 361 and one or more applications 362.

RF transceiver 310 receives an incoming RF signal from antenna 305 that is transmitted by the gNB of wireless network 100. The RF transceiver 310 down-converts the incoming RF signal to generate an Intermediate Frequency (IF) or baseband signal. The IF or baseband signal is sent to RX processing circuit 325, where RX processing circuit 325 generates a processed baseband signal by filtering, decoding, and/or digitizing the baseband or IF signal. The RX processing circuit 325 sends the processed baseband signals to a speaker 330 (such as for voice data) or to a processor/controller 340 (such as for web-browsing data) for further processing.

TX processing circuitry 315 receives analog or digital voice data from microphone 320 or other outgoing baseband data (such as network data, email, or interactive video game data) from processor/controller 340. TX processing circuitry 315 encodes, multiplexes, and/or digitizes the outgoing baseband data to generate a processed baseband or IF signal. RF transceiver 310 receives outgoing processed baseband or IF signals from TX processing circuitry 315 and up-converts the baseband or IF signals to RF signals for transmission via antenna 305.

Processor/controller 340 can include one or more processors or other processing devices and execute OS 361 stored in memory 360 to control the overall operation of UE 116. For example, processor/controller 340 may be capable of controlling the reception of forward channel signals and the transmission of reverse channel signals by RF transceiver 310, RX processing circuit 325, and TX processing circuit 315 in accordance with well-known principles. In some embodiments, processor/controller 340 includes at least one microprocessor or microcontroller.

Processor/controller 340 is also capable of executing other processes and programs resident in memory 360, such as operations for channel quality measurement and reporting for systems having 2D antenna arrays as described in embodiments of the present disclosure. Processor/controller 340 is capable of moving data into and out of memory 360 as needed to perform the process. In some embodiments, the processor/controller 340 is configured to execute the application 362 based on the OS 361 or in response to a signal received from the gNB or operator. The processor/controller 340 is also coupled to an I/O interface 345, where the I/O interface 345 provides the UE 116 with the ability to connect to other devices, such as laptop computers and handheld computers. I/O interface 345 is the communication path between these accessories and processor/controller 340.

The processor/controller 340 is also coupled to an input device(s) 350 and a display 355. An operator of UE 116 can input data into UE 116 using input device(s) 350. Display 355 may be a liquid crystal display or other display capable of presenting text and/or at least limited graphics (such as from a website). Memory 360 is coupled to processor/controller 340. A portion of memory 360 can include Random Access Memory (RAM) and another portion of memory 360 can include flash memory or other Read Only Memory (ROM).

Although fig. 3a shows one example of UE 116, various changes can be made to fig. 3 a. For example, the various components in FIG. 3a can be combined, further subdivided, or omitted, and additional components can be added according to particular needs. As a particular example, the processor/controller 340 can be divided into multiple processors, such as one or more Central Processing Units (CPUs) and one or more Graphics Processing Units (GPUs). Moreover, although fig. 3a shows the UE 116 configured as a mobile phone or smart phone, the UE can be configured to operate as other types of mobile or stationary devices.

Fig. 3b shows an example gNB 102 in accordance with the present disclosure. The embodiment of the gNB 102 shown in fig. 3b is for illustration only, and other gnbs of fig. 1 can have the same or similar configuration. However, the gNB has a variety of configurations, and fig. 3b does not limit the scope of the disclosure to any particular embodiment of the gNB. Note that gNB 101 and gNB 103 can include the same or similar structures as gNB 102.

As shown in fig. 3b, the gNB 102 includes a plurality of antennas 370a-370n, a plurality of RF transceivers 372a-372n, transmit (TX) processing circuitry 374, and Receive (RX) processing circuitry 376. In certain embodiments, one or more of the plurality of antennas 370a-370n comprises a 2D antenna array. The gNB 102 also includes a controller/processor 378, a memory 380, and a backhaul or network interface 382.

The RF transceivers 372a-372n receive incoming RF signals, such as signals transmitted by UEs or other gnbs, from antennas 370a-370 n. The RF transceivers 372a-372n down-convert the incoming RF signals to generate IF or baseband signals. The IF or baseband signal is sent to RX processing circuit 376, where RX processing circuit 376 generates a processed baseband signal by filtering, decoding, and/or digitizing the baseband or IF signal. The RX processing circuit 376 sends the processed baseband signals to a controller/processor 378 for further processing.

TX processing circuitry 374 receives analog or digital data (such as voice data, network data, email, or interactive video game data) from controller/processor 378. TX processing circuitry 374 encodes, multiplexes, and/or digitizes the outgoing baseband data to generate a processed baseband or IF signal. The RF transceivers 372a-372n receive the outgoing processed baseband or IF signals from the TX processing circuitry 374 and up-convert the baseband or IF signals to RF signals for transmission via the antennas 370a-370 n.

The controller/processor 378 can include one or more processors or other processing devices that control the overall operation of the gNB 102. For example, controller/processor 378 may be capable of controlling the reception of forward channel signals and the transmission of backward channel signals via RF transceivers 372a-372n, RX processing circuit 376, and TX processing circuit 374 in accordance with well-known principles. The controller/processor 378 is also capable of supporting additional functions, such as higher-level wireless communication functions. For example, the controller/processor 378 can perform a Blind Interference Sensing (BIS) process such as that performed by a BIS algorithm and decode the received signal from which the interference signal is subtracted. Controller/processor 378 may support any of a variety of other functions in gNB 102. In some embodiments, controller/processor 378 includes at least one microprocessor or microcontroller.

Controller/processor 378 is also capable of executing programs and other processes residing in memory 380, such as a basic OS. Controller/processor 378 is also capable of supporting channel quality measurements and reporting for systems having 2D antenna arrays as described in embodiments of the present disclosure. In some embodiments, the controller/processor 378 supports communication between entities such as web RTCs. Controller/processor 378 is capable of moving data into and out of memory 380 as needed to perform the process.

The controller/processor 378 is also coupled to a backhaul or network interface 382. The backhaul or network interface 382 allows the gNB 102 to communicate with other devices or systems through a backhaul connection or through a network. The backhaul or network interface 382 can support communication through any suitable wired or wireless connection(s). For example, when the gNB 102 is implemented as part of a cellular communication system (such as one supporting 5G or new radio access technologies or NR, LTE, or LTE-a), the backhaul or network interface 382 can allow the gNB 102 to communicate with other gnbs over wired or wireless backhaul connections. When the gNB 102 is implemented as an access point, the backhaul or network interface 382 can allow the gNB 102 to communicate with a larger network (such as the internet) through a wired or wireless local area network or through a wired or wireless connection. The backhaul or network interface 382 includes any suitable structure, such as an ethernet or RF transceiver, that supports communication over a wired or wireless connection.

A memory 380 is coupled to the controller/processor 378. A portion of memory 380 can include RAM and another portion of memory 380 can include flash memory or other ROM. In some embodiments, a plurality of instructions, such as BIS algorithms, are stored in memory. The plurality of instructions are configured to cause the controller/processor 378 to perform a BIS process and decode the received signal after subtracting the at least one interfering signal determined by the BIS algorithm.

As described in more detail below, the transmit and receive paths of the gNB102 (implemented using the RF transceivers 372a-372n, TX processing circuitry 374, and/or RX processing circuitry 376) support aggregated communications with FDD and TDD cells.

Although fig. 3b shows one example of the gNB102, various changes may be made to fig. 3 b. For example, the gNB102 can include any number of each of the components shown in FIG. 3 a. As a particular example, the access point can include a number of backhaul or network interfaces 382, and the controller/processor 378 can support routing functions to route data between different network addresses. As another particular example, while shown as including a single instance of TX processing circuitry 374 and a single instance of RX processing circuitry 376, the gNB102 can include multiple instances of each (such as one for each RF transceiver).

The time domain units (also referred to as time units) in this application may be: one OFDM symbol, one OFDM symbol group (composed of a plurality of OFDM symbols), one slot group (composed of a plurality of slots), one subframe group (composed of a plurality of subframes), one system frame group (composed of a plurality of system frames); but also absolute time units such as 1 millisecond, 1 second, etc. The time unit may also be a combination of granularity, e.g., N1 slots plus N2 OFDM symbols, N1 and N2 being positive integers.

The frequency domain unit (also referred to as frequency unit) in the present application may be: one subcarrier, one subcarrier group (consisting of a plurality of subcarriers), one Resource Block (RB), which may also be referred to as a physical resource block (physical resource block, PRB), one resource block group (consisting of a plurality of RBs), one band part (BWP), one band part group (consisting of a plurality of BWP), one band/carrier, one band group/carrier group; but also absolute frequency domain units such as 1 hz, 1 khz, etc. The frequency domain unit may also be a combination of granularity, e.g. M1 PRBs plus M2 subcarriers, M1 and M2 being positive integers.

In this application, reference to a "network" may refer to a base station and/or LMF, and reference to a "user" may refer to a user equipment UE.

In the application, the ordinal terms "first," "second," "third," etc., are used for descriptive clarity only and are not intended to limit the order of elements, components, assemblies, or steps, etc., i.e., described as first elements, components, and assemblies and second elements, components, or assemblies may also be expressed as second elements, components, and assemblies and first elements, components, or assemblies.

In the present application, the various embodiments disclosed are not limiting, and it is to be understood that any two or more of the embodiments and/or features of the embodiments disclosed herein may be combined in any manner without departing from the scope of the present disclosure.

Exemplary embodiments of the present disclosure are further described below with reference to the accompanying drawings.

The text and drawings are provided as examples only to assist the reader in understanding the present disclosure. They are not intended, nor should they be construed, to limit the scope of the present disclosure in any way. While certain embodiments and examples have been provided, it will be apparent to those of ordinary skill in the art from this disclosure that variations can be made to the embodiments and examples shown without departing from the scope of the disclosure.

The transmission link of the wireless communication system mainly includes: the downlink communication link from a 5G New Radio (NR) gNB to a User Equipment (UE), the uplink communication link from the UE to the network, and the Sidelink (SL) communication link from the UE to the UE may also be referred to as a bypass communication link, etc.

A node for positioning measurements in a wireless communication system, such as the current wireless communication system, comprises: the method comprises the steps of initiating a positioning request message and a UE for downlink positioning measurement, a positioning management entity (Location Management Function, LMF) for UE positioning and positioning auxiliary data Transmission, broadcasting the positioning auxiliary data and a gNB or a Transmitting and Receiving Point (TRP) for uplink positioning measurement, and the UE for lateral positioning measurement.

The side-uplink resource allocation scheme can be divided into two modes: one is that a base station allocates sidestream transmission resources for a terminal, namely a mode one; one is that the terminal autonomously selects the transmission resource, i.e. mode two. When the resource allocation is performed in the first usage mode, the base station may dynamically allocate transmission resources for the terminal through downlink control information DCI, or the base station may allocate semi-static transmission resources for the terminal, and allocate transmission resources for the signal used for positioning in a unlicensed (CG) resource allocation manner. When the second mode is used for resource allocation, the terminal selects time-frequency resources from a network configuration or (pre) configuration resource pool by interception or random selection for signal and/or channel transmission. When a user uses a side-link for wireless communication, how to locate is a problem to be solved. E.g. how to acquire transmission resources of reference signals for sidelink positioning. As another example, how to perform measurements of reference signals based on sidelink positioning. The signal used for positioning may be, for example, SL PRS (Positioning Reference Signal ), but the naming of the signal used for positioning is not limited in the present invention. In the following, SL PRS is taken as an example, but the present invention is not limited to the signal used for positioning.

It should be appreciated that in this disclosure, unless otherwise defined or contradicted by context, among the UEs described herein, a UE receiving SL PRS may be referred to as a "first UE", and one or more UEs listening to transmission resources and/or transmitting SL PRS may be referred to as a "second UE" or a "third UE".

Specifically, in the present invention, a method and apparatus for determining signal priority are provided. In an embodiment of the present invention, the signal may be a signal or a signal resource or a set of signal resources for positioning, where the signal for positioning may be, for example, SL PRS (Positioning Reference Signal ), but the naming of the signal for positioning is not limited in the present invention. In the following, SL PRS is taken as an example, but the present invention is not limited to the signal used for positioning. In an embodiment of the invention, a method of determining a priority relation of a SL PRS and other signals and/or channels, a method of determining a priority relation of a SL PRS and other SL PRS, a method of reserving one or more SL PRS time-frequency resources, a method of determining a UE behaviour in case of different SL PRS priorities, and a reporting of SL PRS measurements according to a priority criterion are disclosed. In the embodiment of the present invention, the exemplary description is made using SL PRS, but the described method may also be used for measurement of other signals, for example, synchronization signals and PBCH block SSB (Synchronization Signal and PBCH block), channel state information Reference Signal CSI-RS (Channel State Information-Reference Signal), etc.

The network and/or UE may configure and/or pre-configure one or more first units for other UEs and/or groups of UEs for performing measurements of SL PRS. The first unit may comprise a combination of one or more of the following:

measurement interval for SL PRS measurement;

process window for SL PRS measurements;

time domain unit for SL PRS measurement;

duration (length) L from start point S of transmission resource;

optionally, if the ratio of the number of dropped SL PRSs to the number of (pre) configured SL PRSs is greater than the sixth threshold value T5, the duration (length) L will be extended to C x L, as the priority of the SL PRSs is lower than the priority of other signals and/or channels. Wherein T5 and C are real numbers with T5=0.5 and T5 being a real number with T5=0.5, C being a real number with T1 and c=1/(1-T5), respectively, according to parameter values reported by the UE and/or parameter values configured by the base station and/or parameter values preconfigured received by the UE;

m (pre) configured or measured SL PRS resources starting from a start point S of a transmission resource, wherein the measured SL PRS resources do not contain SLPRS resources that were discarded due to a priority rule;

The starting point S is the first time slot index and/or subframe index and/or system frame index of the SL PRS which is measured by the UE, and the duration (length) L prescribes the number of time slots and/or subframes and/or the number of system frames and/or the time length of the SL PRS which is measured by the UE from the starting point S;

the M (pre) configured or measured SL PRS resources starting from the start point S of the transmission resource may be M SL PRS resources that are temporally consecutive or M SL PRS resources that are temporally discontinuous, not containing muted SL PRS resources or resource sets;

and the starting point S and the L, M SL PRS resources with the duration (length) are parameter values reported by the user equipment UE according to the self processing capacity and/or parameter values configured by the base station and/or parameter values preconfigured by the UE. Wherein S, L, M is a real number greater than 0.

The other signals and/or channels may comprise a combination of one or more of the following:

physical uplink control channel PUCCH;

physical uplink shared channel PUSCH;

physical downlink control channel PDCCH;

physical downlink shared channel PDSCH;

physical broadcast channel PBCH;

physical random access channel PRACH;

other side row signals and/or channels. The other sidestream signals and/or channels comprise at least one of: the system comprises a physical sidelink control channel PSCCH, a physical sidelink shared channel PSSCH, a physical sidelink feedback channel PSFCH, a physical sidelink broadcast channel PSBCH, a sidelink synchronizing signal S-SS, a sidelink channel state information reference signal SL CSI-RS and a sidelink phase tracking reference signal SL PT-RS.

By the method of the embodiment, reasonable signal resource allocation and rapid and accurate measurement of SL PRS can be realized.

If the UE performs SL PRS measurement in the shared resource pool and/or in the specific resource pool, optionally, if the UE performs SL PRS measurement in the shared resource pool and/or in the first unit configured in the specific resource pool, when reception of the SL PRS and reception or transmission of other signals/channels overlap in time, if the priority of the SL PRS is higher than the priority of other signals/channels, or the value of the priority of the SL PRS is smaller than the value of the priority of other signals/channels, the UE expects to receive the SL PRS; if the priority of the SL PRS is lower than the priority of the other signals/channels, or the value of the SL PRS priority is greater than the value of the priority of the other signals/channels, the UE expects to receive or transmit the other signals/channels; if the priority of the UE-specific SL PRS is higher than the priority of the SL PRS of the other UE or the value of the priority of the UE-specific SL PRS is smaller than the value of the priority of the SL PRS of the other UE, the UE expects to receive the SL PRS; if the priority of the UE-specific SL PRS is lower than that of the other UE or the value of the priority of the UE-specific SL PRS is greater than that of the other UE, the UE does not expect to receive the SL PRS. Resources for transmitting the SL PRS are determined based on a relationship of the determined priority of the SL PRS to priorities of other signals/channels and/or based on a relationship of the determined priority of the UE-specific SL PRS to priorities of the SL PRS of other UEs. Here, at least one of a transmitting end UE of SL PRS, a transmitting end UE of UE-specific SL PRS, a transmitting end UE of SL PRS of other UEs, or another transmitting end UE may transmit the SL PRS. The method of user prioritization of SL PRSs within a first unit may include a combination of one or more of:

The UE obtains or determines the values of priority of the SL PRS and other signals and/or channels by receiving SCI and/or DCI and/or MAC CE and/or RRC and/or higher layer signaling indications. If the value of the priority of the SL PRS is smaller than the value of the priority of the other signals and/or channels within the first unit, the priority of the SL PRS is higher than the priority of the other signals and/or channels; or if the value of the priority of the SL PRS is greater than the value of the priority of the other signals and/or channels, the priority of the SL PRS is lower than the priority of the other signals and/or channels; or if the value of the priority of the SL PRS is less than part or all of the priority value of a portion of the other signals and/or channels, the priority of the SL PRS is higher than part or all of the priority of a portion of the other signals and/or channels, and if the value of the priority of the SL PRS is greater than part or all of the priority value of another portion of the other signals and/or channels, the priority of the SL PRS is lower than part or all of the priority of another portion of the other signals and/or channels. Alternatively, the UE may indicate, through higher layer signaling, that if the value of the priority of the SL PRS is smaller than the value of the priority of all or part of the PSSCH, the priority of the SL PRS is higher than the priority of all or part of the PSSCH in the first unit; if the value of the priority of the SL PRS is greater than the value of the priority of all or a further portion of the PSSCH, the priority of the SL PRS is lower than the priority of all or a further portion of the PSSCH;

If the UE can process the SL PRS and other signals and/or channels in parallel, the SL PRS and other signals and/or channels have the same priority, i.e. the value of the priority of the SL PRS is equal to the value of the priority of the other signals and/or channels;

the UE's reporting capability to the network, whether or not to receive SL PRS and to receive or transmit other signals and/or channels on each frequency band or carrier within the first unit or on non-overlapping OFDM symbols of the UE. The capability and the priority options and/or states and/or values are in one-to-one correspondence, that is, each PRS processing capability has a unique corresponding priority option and/or state and/or value, the UE may report a plurality of or multiple PRS processing capabilities, and the UE determines one PRS processing capability and its corresponding priority option and/or state and/or value by receiving DCI or MAC CE or RRC message or higher layer signaling indication, and if the value of the priority of the SL PRS is smaller than the value of the priority of other signals and/or channels, the priority of the SL PRS is higher than the priority of the other signals and/or channels in the first unit; or if the value of the priority of the SL PRS is greater than the value of the priority of the other signals and/or channels, the priority of the SL PRS is lower than the priority of the other signals and/or channels; or if the value of the priority of the SL PRS is less than part or all of the priority value of a portion of the other signals and/or channels, the priority of the SL PRS is higher than part or all of the priority of a portion of the other signals and/or channels, and if the value of the priority of the SL PRS is greater than part or all of the priority value of another portion of the other signals and/or channels, the priority of the SL PRS is lower than part or all of the priority of another portion of the other signals and/or channels; or directly determines the priority of the SLPRS according to the determined priority options and/or states.

The UE reporting capability to the network, if the UE supports only one priority rule for receiving SL PRS and receiving or transmitting other signals and/or channels, the priority of SL PRS and other signals and/or channels may be implied (or inferred) by the UE capability. For example, the priority of the SL PRS is higher than the priority of other signals and/or channels, i.e., the value of the priority of the SL PRS is less than the value of the priority of other signals and/or channels; or the priority of the SL PRS is lower than the priority of the other signals and/or channels, i.e. the value of the priority of the SL PRS is greater than the value of the priority of the other signals and/or channels;

the priority relationship of the SL PRS and other signals and/or channels may be preconfigured. For example, the priority of the predefined SL PRS is higher than the priority of other signals and/or channels, i.e., the value of the priority of the slpr is less than the value of the priority of other signals and/or channels; or the priority of the predefined SL PRS is lower than the priority of the other signals and/or channels, i.e. the value of the priority of the SL PRS is greater than the value of the priority of the other signals and/or channels; or the priority of the SL PRS is predefined as one of the priorities of the PSSCH transmissions, i.e., if the priority of the SL PRS is higher than the priority of some or all of the PSSCHs, the value of the priority of the SL PRS is less than the value of the priority of some or all of the PSSCHs, and if the priority of the SL PRS is lower than the priority of some or all of the PSSCHs, the value of the priority of the SL PRS is greater than the value of the priority of some or all of the other PSSCHs;

The other UEs and/or networks configure the priority relation of the slplrs and other signals and/or channels according to the channel busy rate (channel busyratio, CBR) and/or channel occupancy (channel occupy ratio, CR) of the SL reported by the UEs. If a first threshold value T1 associated with CBR and/or a second threshold value T2 associated with CR is provided and CBR is greater than the first threshold value T1 and/or CR is greater than the second threshold value T2, the priority of SL PRS is lower than the priority of other signals and/or channels, i.e. the value of the priority of SL PRS is greater than the value of the priority of other signals and/or channels; if a first threshold value T1 associated with CBR and/or a second threshold value T2 associated with CR are provided and CBR is smaller than the first threshold value T1 and/or CR is smaller than the second threshold value T2, the priority of SL PRS is higher than the priority of other signals and/or channels, i.e. the value of the priority of slpr is smaller than the value of the priority of other signals and/or channels. If the first threshold value T1 associated with the CBR and/or the second fourth threshold value T2 associated with the CR is not provided/not configured/not present/not received, the priority of the SL PRS is higher than the priority of the other signals and/or channels, i.e. the value of the priority of the SL PRS is smaller than the value of the priority of the other signals and/or channels. And the T1 and the T2 are parameter values which are reported by the UE according to the processing capacity of the UE and/or parameter values which are received by the UE and configured by the base station and/or parameter values which are preconfigured. Wherein T1 and T2 are real numbers which are more than or equal to 0 and less than or equal to 1;

When performing SL PRS measurements within the first unit, according to UE capabilities and/or base station indications and/or UE hints (discovery) and/or pre-configured manners, the other signals and/or channels have a higher priority than the SL PRS resources, i.e. the value of the priority of the SL PRS is greater than the value of the priority of the other signals and/or channels;

if a third threshold value T3 associated with the priority of the other signals and/or channels is provided/configured/present, and if the value of the priority of the SL PRS is less than T3, the priority of the SL PRS is higher than the priority of the other signals and/or channels; if a third threshold value T3 associated with the priority of the other signals and/or channels is provided, and if the value of the priority of the SL PRS is greater than T3, the priority of the SL PRS is lower than the priority of the other signals and/or channels; if the third threshold value T3 associated with the priority of the other signals and/or channels is not provided/not configured/not present/not received, the priority of the SL PRS is higher than the priority of the other signals and/or channels, i.e. the value of the priority of the SL PRS is smaller than the value of the priority of the other signals and/or channels. And the T3 is a parameter value and/or a preconfigured parameter value which are configured by a base station and are received by the UE according to the parameter value reported by the UE and/or the self processing capacity. Wherein T3 is a real number equal to or greater than 0;

When performing SL PRS measurements in the first unit according to UE capabilities and/or base station indications and/or UE hints and/or preconfigured manners, the priority of the PSFCH is higher than the priority of the SL PRS resources, i.e. the value of the priority of the SL PRS is greater than the value of the priority of the PSFCH;

for the priority relation of SL PRS among multiple users, when the UE requests SL PRS measurement from other UEs and/or the network, optionally, when the UE requests configuration or activation of the first unit from other UEs and/or the network for SL PRS measurement, the network may configure, according to the sequence of UCI or MAC CE or RRC arrival of different UEs requesting configuration or activation of the first unit, a priority of UE-specific SL PRS for the UE, and configure, for the UE that requests configuration or activation of the first unit first, a priority of higher SL PRS, i.e. the smaller the SL PRS priority value of the UE that requests configuration or activation of the first unit is I, the higher the priority of the corresponding SL PRS, where I is a real number greater than or equal to 0. Indicating the priority of the SL PRS of the UE requesting the SL PRS measurement in the current network through DCI and/or MAC CE and/or RRC and/or higher layer signaling, and/or determining the priority of the SL PRS of the UE through SCI forwarding;

for the priority relation of the SL PRS among the plurality of users, the UE can periodically report the instantaneous moving speed to other UEs and/or networks through auxiliary information, and the other UEs and/or networks configure the priority of the UE-specific SL PRS for the UE according to the average moving speed in X ms reported by the UE. If the average moving speed is greater than 0 and less than a fourth threshold value V1, configuring the value of the priority of the UE-specific SL PRS as P1; if the average moving speed is greater than the fourth threshold value V1 and less than the fifth threshold value V2, configuring the value of the priority of the UE-specific SL PRS as P2; and so on. The higher the average moving speed of the UE within X ms, the higher the priority of its corresponding SL PRS. The X, P, P2, V1, V2 are parameter values reported by the UE according to its processing capability and/or parameter values configured by the base station and/or parameter values preconfigured by the UE. Wherein X, P, P2, V1, V2 are real numbers greater than or equal to 1, V2 is greater than V1, and P2 is less than P1. Indicating the priority of the SL PRS of the UE requesting the SL PRS measurement in the current network through DCI and/or MAC CE and/or RRC and/or higher layer signaling, and/or determining the priority of the SL PRS of the UE through SCI forwarding;

The UE receives configuration parameters of the configured SL PRS from the network, which may include a timer time of the SL PRS to define an effective time length of the slpr configuration. Other UEs and/or networks determine the priority of the SL PRS among different users according to the length of the timer time of the SL PRS, and the shorter the timer time of the SL PRS, the higher the priority of the SL PRS, and the smaller the value of the priority of the SL PRS. The network determines the priority of the SL PRS of the UE by DCI and/or MAC CE and/or RRC and/or higher layer signaling, indicating the priority of the SL PRS of the UE requesting the SL PRS measurements in the current network, and/or by SCI forwarding.

By the method of the present embodiment, transmission resources of signals can be determined or collision between signals can be avoided.

If the UE performs SL PRS measurements in the shared resource pool and/or in the specific resource pool, optionally, if the UE performs SL PRS measurements in the shared resource pool and/or in the first unit configured in the specific resource pool, one or more UEs may reserve one or more SL PRS time-frequency resources using SCI and/or MAC CE and/or RRC and/or higher layer signaling. The method of reserving one or more SL PRS time-frequency resources may include a combination of one or more of:

If the priority of the SL PRS has been determined, the high priority SL PRS may select/preempt time-frequency resources reserved for the low priority SL PRS and/or other signals/channels, triggering a resource reselection of the selected/preempted low priority SL PRS and/or other signals/channels;

if the priority of the SL PRS has been determined, other signals/channels of high priority may select/preempt the time-frequency resources reserved for the low priority SL PRS, triggering a resource reselection of the selected/preempted SL PRS with low priority;

optionally, if the priority of the SL PRS has been determined, the other signals and/or channels with high priority may select/preempt transmission resources reserved for low priority SL PRS resources for transmission of the other signals and/or channels to reduce the delay impact of SL PRS measurements on the other signals and/or channels;

optionally, if the SL PRS priority has been determined, the high priority PSFCH may select/preempt transmission resources reserved for the low priority SL PRS resources for ACK/NACK feedback, which is more important based on ACK/NACK feedback;

optionally, according to UE capability and/or base station indication, in the first unit for measuring SL PRS, if the priority of SL PRS is higher than the priority of all or part of PSSCH, SL PRS may select/preempt transmission resources reserved for all or part of PSSCH resources with low priority, triggering to perform resource reselection for the selected/preempted PSSCH with low priority; if the priority of SLPRS is lower than that of all or part of PSSCH, PSSCH can select/preempt transmission resource reserved for all or part of low priority SL PRS resource, and trigger to execute resource reselection for the selected/preempted low priority SL PRS;

If one or more SL PRSs and a plurality of non-overlapping (non-overlapping)) other signals and/or channels overlap in time, when at least one of the one or more SL PRSs has a priority that is higher than all other signals and/or channels, the one or more SL PRSs may select/preempt transmission resources reserved for the plurality of non-overlapping other signals and/or channels, triggering a resource reselection of the selected/preempted plurality of non-overlapping other signals and/or channels; if one or more SL PRSs and a plurality of non-overlapping other signals and/or channels overlap in time, when at least one other signal and/or channel of the plurality of non-overlapping other signals and/or channels has a priority higher than that of all SL PRSs, the plurality of non-overlapping other signals and/or channels may select/preempt transmission resources reserved for the SL PRS, triggering a resource reselection of the SL PRS;

if one SL PRS overlaps in time with one or more non-overlapping other signals and/or channels, when the SL PRS has a higher priority than all other signals and/or channels, the SL PRS may select/preempt transmission resources reserved for the one or more non-overlapping other signals and/or channels, triggering a resource reselection of the selected/preempted one or more non-overlapping other signals and/or channels; if one SL PRS and one or more non-overlapping other signals and/or channels overlap in time, when at least one other signal and/or channel of the plurality of non-overlapping other signals and/or channels has a higher priority than the SL PRS, the one or more non-overlapping other signals and/or channels may select/preempt transmission resources reserved for the SLPRS, triggering a resource reselection of the selected/preempted SL PRS;

Other UEs and/or networks reserve one or more SL PRS time-frequency resources based on the channel busy rate (channel busy ratio, CBR) and/or channel occupancy (channel occupy ratio, CR) reported by the UE. If the first threshold T1 associated with the CBR and/or the second threshold T2 associated with the CR are provided, and the CBR is greater than the first threshold T1 and/or the CR is greater than the second threshold T2, other signals/channels may select/preempt the time-frequency resources reserved for the SL PRS, triggering a resource reselection of the SL PRS; if a first threshold T1 associated with CBR and/or a second fourth threshold T2 associated with CR are provided and CBR is less than the first threshold T1 and/or CR is less than the second threshold T2, the SL PRS may select/preempt time-frequency resources reserved for other signals/channels and/or low priority SL PRSs, triggering a resource reselection for other signals/channels and/or low priority SL PRSs;

when the UE requests SL PRS measurements from other UEs and/or the network, optionally, when the UE requests configuration or activation of the first unit for SL PRS measurements from other UEs and/or the network, the network may reserve transmission resources of SL PRS for the UE according to the sequence of UCI or MAC CE or RRC arrival of different UEs requesting configuration or activation of the first unit. The SL PRS of the UE that first requested the SL PRS measurement may select/preempt transmission resources reserved for the SLPRS of the UE that later requested the SL PRS measurement, triggering a resource reselection of the SL PRS of the UE that later requested the SL PRS measurement. The scheme is beneficial to reducing the positioning time delay of the UE;

The UE can periodically report the instantaneous moving speed to other UEs and/or networks through the auxiliary information, and the other UEs and/or networks reserve the transmission resources of the SL PRS for the UE according to the average moving speed in X ms reported by the UE. The SL PRS of the UE with high average moving speed may select/preempt transmission resources reserved for the SL PRS of the UE with low average moving speed, triggering a resource reselection of the SL PRS of the UE with low average moving speed. The scheme is beneficial to quickly acquiring the position information of the high-speed mobile UE, and reduces the positioning time delay;

the configuration parameters of the SL PRS may include a timer time of the SL PRS that is used to define an effective time length of the SL PRS configuration. The UE reserves transmission resources of the SL PRS for the UE according to the length of the timer time of the SL PRS, the SL PRS with short timer time can select/preempt the reserved transmission resources of the SL PRS with long timer time, and the resource reselection of the SL PRS with long timer time is triggered.

Depending on the UE capabilities and/or base station indications, if the SL PRSs of two or more UEs have the same priority, the behavior of the UE may include a combination of one or more of the following:

the method is realized by the UE, SL PRS transmission resources are reserved for any UE, for example, transmission resources are reserved for SL PRS of one UE at random, and other UE is triggered to perform resource reselection;

According to the timer time (timer) of SLPRS indicated by SCI and/or DCI and/or MAC CE and/or RRC and/or higher layer signaling, by comparing the timer time of SL PRS of two or more UEs, reserving SL PRS transmission resources for users with shortest timer time, and triggering other UEs to reselect resources.

When the UE performs SL PRS measurements, optionally, when the UE performs SL PRS measurements within the first unit, the UE does not want to measure SL PRS configured for other UEs and/or groups of UEs, only UE-specific SL PRS resources are measured. If the SL PRSs of multiple UEs overlap in time and/or frequency domain resources, the behavior of the UEs may include a combination of one or more of the following:

on the time-frequency resource of the SL PRS where the time-domain and/or frequency-domain resource overlap occurs, the receiving end UE discards all or part of the overlapping SL PRS, and/or extends the measurement duration of the first unit, and/or the receiving end UE indicates to the transmitting end UE the number of discarded SL PRS through SCI, and/or the receiving end UE indicates to the transmitting end UE the Identity (ID) of the discarded SL PRS and/or the time-domain resource symbol index through SCI;

■ Optionally, the UE at the SL PRS transmitting end may mute and/or deactivate the SL PRS on the overlapping time domain and/or frequency domain resources when the priority of the SL PRS transmitted by the UE at the transmitting end is lower than the priority of the SL PRS of the other UE according to the detected priority of the SL PRS indicated by the SCI of the other UE;

■ Optionally, the SL PRS transmitting end UE receives the number of dropped SL PRSs indicated by the SL PRS receiving end UE through SCI, and configures or activates the same SL PRS resources as the number of dropped SL PRSs or reserves the same SL PRS transmission resources as the number of dropped SL PRSs on the basis of the current SL PRS transmission.

By the method of the embodiment, optimal resource allocation and signal scheduling can be realized, and collision between signals is avoided.

The manner in which the UE reports the SL PRS measurements includes a combination of one or more of the following:

the UE reports the measurement result of the SL PRS resource using the PSSCH or PUSCH or PSCCH or PUCCH transmitted first after the last time unit of the first unit for SL PRS resource measurement.

■ Optionally, after the last time unit of the first unit for SL PRS resource measurement, the receiving end UE (e.g., here may be a UE outside the coverage of the base station) sends a request to the transmitting end UE (e.g., here may be a UE within the coverage of the base station) to apply for an uplink transmission resource, and the transmitting end UE may forward the request to the base station to apply for an uplink transmission resource for the receiving end UE, or the receiving end UE sends a request to the base station to apply for an uplink transmission resource, and reports a measurement result of the SL PRS resource through the transmitted PUSCH.

■ Optionally, the receiving UE (e.g., here, a UE outside the coverage of the base station) reports the measurement result of the SL PRS resource to the transmitting UE (e.g., here, a UE within the coverage of the base station) through the PSSCH or PSCCH after the last time unit of the first unit for SL PRS resource measurement.

■ Optionally, after the last time unit of the first unit for SL PRS resource measurement, the receiving end UE directly reports the measurement result of the SL PRS resource to the base station through the PUCCH.

And according to the UE capability and/or the network indication, if the corresponding measurement process is completed in the first N time units of the first unit, PSSCH or PUSCH or PSCCH or PUCCH is sent before the end of the first unit from the (n+1) th time unit, and the measurement result of SL PRS resources is reported.

The UE uses the X first units to make measurements of the SL PRS resources and reports the measurement results of the SL PRS resources only after the X first units. The measurement result of the SL PRS resource may include measurement results of X first units or may be a mean or a maximum or a minimum of measurement results of X first units. And the X is a parameter value and/or a preconfigured parameter value which are configured by a base station and are received by the UE according to the parameter value reported by the UE and/or the self processing capacity. Wherein X is an integer of 1 or more;

Alternatively, the first unit may be an activated first unit.

The measurement results of the first unit for SL PRS resource measurements include a combination of at least one or more of:

the received signal strength of the measurement path is defined as including, but not limited to, the first arrival path, the line-of-sight path, and the strongest power path, and the received signal strength may be the average or peak of the received signal strength of all the arrival paths within a certain period of time.

The downstream departure angle of the measurement path is defined as including, but not limited to, the first arrival path, the line-of-sight path, and the paths received by different antenna connection points.

The time difference between the received signals of the serving cell and the reference cell measurement paths is defined as including, but not limited to, the first arrival path, the line-of-sight path, and the strongest power path.

The UE reception transmission time difference is defined as the UE uplink signal transmission time including, but not limited to, the first arrival path, the line-of-sight path, and the strongest power path, and the UE transmission time is defined as the UE uplink signal transmission time nearest to the UE reception time.

The method for determining the priority of the SL PRS measurement report may include one or more of the following:

the priority reported by the SL PRS measurement result is the same as the highest SL PRS resource in the priorities of the SLPRS resources measured in the P first units, i.e. the value of the priority reported by the SL PRS measurement result is equal to the value of the priority of the smallest SL PRS resource in the SLPRS resources measured in the P first units, where P is a parameter value reported by the user equipment UE according to its own processing capability and/or a parameter value configured by the base station and/or a preconfigured parameter value received by the UE and is an integer greater than 1.

If the SL PRS measurement result reported by the UE is measured based on the plurality of first units, the priority of reporting the SL PRS measurement result is the same as the priority of the highest SL PRS resource in the first unit that performs the SL PRS resource measurement, i.e., the value of the priority of reporting the SL PRS measurement result is equal to the value of the priority of the highest SL PRS resource in the first unit that performs the SL PRS resource measurement.

By the method of the embodiment, the measurement result can be rapidly and accurately reported.

Referring to fig. 4, a method in an embodiment according to the present disclosure is described.

In step S401, the first UE receives configuration information about a first unit for measurement of a first signal.

In step S402, the first UE obtains a priority relation of the first signal and the second signal and/or the channel, and/or obtains a priority relation of the first signal of the second UE and the first signal of the third UE.

In step S403, the first UE measures a first signal within the first unit based on the determined priority relationship.

Here, for example, the first signal may be SL PRS.

It will be appreciated by those skilled in the art that the various steps recited in the method embodiments of the present invention may be performed in an order different than shown, for example, in parallel or in reverse order. Furthermore, method embodiments of the present invention may also include additional steps and/or omit illustrated steps.

Those skilled in the art will appreciate that the above illustrative embodiments are described herein and are not intended to be limiting. It should be understood that any two or more of the embodiments disclosed herein may be combined in any combination. In addition, other embodiments may be utilized and other changes may be made without departing from the spirit and scope of the subject matter presented herein. It will be readily understood that the aspects of the present disclosure, as generally described herein, and illustrated in the figures, can be arranged, substituted, combined, separated, and designed in a wide variety of different configurations, all of which are contemplated herein.

Those of skill in the art will appreciate that the various illustrative logical blocks, modules, circuits, and steps described herein may be implemented as hardware, software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such design decisions should not be interpreted as causing a departure from the scope of the present application.

The various illustrative logical blocks, modules, and circuits described herein may be implemented or performed with a general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.

The steps of a method or algorithm described in connection with the disclosure herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an ASIC. The ASIC may reside in a user terminal. In the alternative, the processor and the storage medium may reside as discrete components in a user terminal.

In one or more exemplary designs, the functions described may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

Claims

1. A method performed by a first user equipment, UE, in a communication system, comprising:

receiving configuration information about a first unit for measurement of a first signal;

obtaining a priority relation between the first signal and the second signal and/or the channel, and/or obtaining a priority relation between the first signal of the second UE and the first signal of the third UE; and

a first signal is measured within the first unit based on the determined priority relationship.

2. The method of claim 1, wherein the priority relationship of the first signal to the second signal and/or channel comprises:

in case the first UE is able to process the first signal in parallel with the second signal and/or channel, the priority of the first signal is the same as the priority of the second signal and/or channel; or alternatively

The priority relationship of the first signal and the second signal and/or channel is determined based on the value of the priority of the preconfigured first signal and the value of the priority of the preconfigured second signal and/or channel; or alternatively

The priority relationship of the first signal and the second signal and/or channel is determined based on the received value of the priority of the first signal and the preconfigured value of the priority of the second signal and/or channel; or alternatively

The priority relationship of the first signal and the second signal and/or channel is determined based on the first UE capability; or alternatively

The priority relation of the first signal and the second signal and/or channel is based on information of UE capabilities and received information about priorities.

3. The method of claim 1, wherein determining a priority relationship of the first signal to the second signal and/or channel comprises:

the first UE reports information about channel usage,

determining a priority relation of the priority of the first signal and other signals and/or channels based on the information about the usage of the channels and the threshold value associated with the usage of the channels in case the first UE receives the threshold value associated with the usage of the channels; or alternatively

In the event that the UE does not receive a threshold value associated with the use of the channel, it is determined that the priority of the first signal is higher than the priority of the other signals and/or channels.

4. The method of claim 1, wherein determining a priority relationship of the first signal to the second signal and/or channel comprises:

determining that the priority of the first signal is lower than the priority of the second signal and/or channel; or alternatively

Determining a priority relation between a first signal and a second signal and/or a channel based on information of a threshold value related to the priority of the second signal and/or the channel and a value of the priority of the first signal under the condition that the threshold value related to the priority of the second signal and/or the channel is received; or alternatively

Determining that the priority of the first signal is higher than the priority of the second signal and/or channel in the case that a threshold value related to the priority of the second signal and/or channel is not received; or alternatively

The priority of the first signal is determined to be lower than the priority of the physical sidelink feedback channel PSFCH.

5. The method of claim 1, wherein the value of the priority of the first signal of the second UE and the value of the priority of the first signal of the third UE are configured based on a time order in which requests sent by the second UE and the third UE to configure the first unit arrive at the network node; or alternatively

The value of the priority of the first signal of the second UE and the value of the priority of the first signal of the third UE are configured based on the moving speeds of the second UE and the third UE; or alternatively

The value of the priority of the first signal of the second UE and the value of the priority of the first signal of the third UE are configured based on the information of the timer times corresponding to the first signals of the second UE and the third UE.

6. The method of any of claims 1-5, wherein measuring the first signal within the first unit based on the determined priority relationship comprises:

based on the determined priority relationship, determining resources for transmitting the first signal,

within the first unit, the determined resources are measured.

7. The method of claim 6, wherein determining resources for transmitting the first signal based on the determined priority relationship comprises:

when the priority of the first signal of the second UE is higher than the priority of the first signal of the third UE and/or the priority of the second signal and/or the channel, resources reserved for the first signal of the third UE and/or the second signal and/or the channel are selected for the first signal of the second UE, and resource reselection of the selected resources is triggered; or alternatively

When the priority of the first signal of the second UE is lower than the priority of the first signal of the third UE and/or the priority of the second signal and/or channel, the resources reserved for the first signal of the second UE are selected for the first signal and/or the second signal and/or channel of the third UE and the selected resource reselection is triggered.

8. The method of claim 6, wherein in the event that one or more first signals overlap in time with a plurality of non-overlapping second signals and/or channels:

when at least one of the one or more first signals has a priority higher than that of all the second signals and/or channels, resources reserved for the plurality of non-overlapping second signals and/or channels are selected for the one or more first signals, and resource reselection of the selected resources is triggered; or alternatively

When the priority of at least one second signal and/or channel is higher than the priority of all first signals, resources reserved for one or more first signals are selected for a plurality of non-overlapping second signals and/or channels, and resource reselection of the selected resources is triggered.

9. The method of claim 6, wherein in the event that a first signal overlaps in time with one or more non-overlapping second signals and/or channels:

when the priority of one first signal is higher than the priority of all second signals and/or channels, resources reserved for one or more non-overlapping second signals and/or channels are selected for one first signal, a resource reselection of the selected resources is triggered,

When at least one of the one or more non-overlapping second signals and/or channels has a higher priority than one of the first signals, resources reserved for one of the first signals are selected for the one or more non-overlapping second signals and/or channels and resource reselection of the selected resources is triggered.

10. The method of claim 1, wherein the first signal is a signal or signal resource or set of signal resources for positioning,

wherein the first unit comprises at least one of: a measurement interval for the first signal measurement; a processing window for the first signal measurement; a time domain unit for the first signal measurement; a duration L of starting from a starting position S of a resource for transmission of the first signal, or a length of time domain resources occupied by M first signals starting from the starting position S of a resource for transmission of the first signal,

wherein S, L, M is a real number greater than 0.

11. The method of claim 1, further comprising:

when the first signal of the second UE overlaps with the first signal or the second signal and/or the channel of the third UE in time domain and/or frequency domain resource:

In case the priority of the first signal of the second UE is higher than the priority of the first signal of the second UE and/or the channel or the third UE, the first UE expects to receive the first signal of the second UE; or alternatively

In case the priority of the first signal is lower than the priority of the second signal and/or channel, the first UE expects to receive the second signal and/or channel and/or discard all or part of the first signal; or alternatively

In the case where the priority of the first signal of the second UE is lower than the priority of the first signal of the third UE, the first UE performs at least one of: the method comprises the steps that a first signal of a second UE is not expected to be received, all or part of the first signal of the second UE is discarded, the measurement duration of a first unit is prolonged, the first UE indicates the number of the discarded first signals of the second UE to the second UE, and the first UE indicates the identification and/or the time domain resource symbol index of the discarded first signals of the second UE to the second UE; or alternatively

In the case that the first signal of the second UE has the same priority as the first signal of the third UE, the first signal of any one of the second UE and the third UE is reserved with resources, the reselection of the resources of the first signals of the remaining UEs is triggered, or according to the timer time in the configuration information of the first signals of the second UE and the third UE, the first signal of the UE with the shortest timer time is reserved with resources, and the reselection of the resources of the remaining UEs is triggered.

12. The method of claim 11, wherein the length L of the measurement duration is extended when a ratio of the number of first signals of the discarded second UE to the number of first signals of the configured or preconfigured second UE is greater than a third threshold value,

wherein the measured first signal does not contain the discarded first signal.

13. The method of claim 11, further comprising:

when the priority of the first signal of the second UE is lower than that of the first signal of the third UE, the first signal of the second UE on the overlapped time domain resource and/or the overlapped frequency domain resource is muted and/or deactivated by the second UE;

the second UE configures or activates the same number of first signals as the discarded second UE indicated by the first UE or reserves the same number of resources as the discarded second UE indicated by the first UE.

14. The method of claim 1, further comprising:

the first UE reports the measurement result of the first signal to the network node,

reporting the measurement result on a first physical sidelink shared channel PSSCH, a first physical uplink shared channel PUSCH, a first physical sidelink control channel PSCCH, or a first physical uplink control channel PUCCH after a last time unit of the first unit; or alternatively

Reporting the measurement result through PSSCH or PUSCH or PSCCH or PUCCH before the end of the first unit in the (n+1) th time unit under the condition that the measurement of the first signal is completed by the previous N time units of the first unit; or alternatively

Under the condition that the first signal is measured in X first units, reporting the measurement result after the X first units, wherein X is an integer greater than or equal to 1, and the measurement result comprises the measurement results of the X first units; or alternatively

After measuring the first signal using the last time unit of the first unit, the first UE requests uplink transmission resources and reports the measurement result on the configured resources through PSSCH or PUSCH or PSCCH or PUCCH.

15. The method of claim 14, wherein the measurement report has a priority that is the same as a highest priority among priorities of a plurality of first signals measured in P first units, P being an integer greater than 1, or

In the case that the measurement result is measured based on a plurality of first units, the priority of reporting the measurement result is the same as the highest priority in the first signal in the first unit that last performs the measurement.

16. A user equipment, UE, in a wireless communication system, the UE comprising:

a transceiver configured to receive a transmission signal; and

a controller coupled to the transceiver and configured to control the UE to perform the method of any of the preceding claims 1-15.