CN117641597A - Method and apparatus for signal configuration and measurement - Google Patents
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Abstract
The application provides a method and a device for signal configuration and measurement, wherein a method performed by a second User Equipment (UE) in a communication system is disclosed, comprising: receiving configuration information about a resource; a first signal is measured based on configuration information about the resources, the first signal being a signal or signal resource or set of signal resources for positioning.
Description
Technical Field
The present disclosure relates to wireless communication technology, and more particularly, to methods and apparatus for configuration and measurement of 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 configuration or measurement.
According to an aspect of the present application, there is provided a method performed by a second user equipment, UE, in a communication system, comprising: receiving configuration information about a resource; a first signal is measured based on configuration information about the resources, the first signal being a signal or signal resource or set of signal resources for positioning.
According to embodiments of the present application, the second UE receives configuration information on resources from a network node or the second UE receives configuration information on resources from a first UE.
According to the embodiment of the application, the user equipment receives the configuration information about the resource through physical layer signaling or higher layer signaling.
According to an embodiment of the present application, the configuration information about the resource includes at least one of: the method comprises the steps of identifying an ID of a first signal, repeating an index ID of the first signal, an ID of a UE, a UE group ID, a mapping mode of the first signal in a time domain and/or a frequency domain, a starting point of the first signal, duration of the first signal, period of the first signal, bandwidth of the first signal, priority of the first signal and timer time of the first signal.
According to an embodiment of the present application, the timer time of the first signal comprises at least one of: an initial value D and a step size s, wherein D, s is a parameter value reported by the UE and/or a parameter value configured by the network node and/or a preconfigured parameter value, D, s is a real number greater than 0.
According to an embodiment of the present application, the priority of the first signal is a parameter value reported by the user equipment UE, and/or a parameter value configured by the network node and/or a pre-configured parameter value and/or a default parameter value.
According to an embodiment of the present application, the mapping manner received by the second UE is different from the mapping manners received by other UEs of the same UE group to which the second UE belongs; and/or the mapping manner received by the second UE is different from the mapping manner received by the UE adjacent to the second UE.
According to an embodiment of the present application, the configuration information about the resource includes: a specific resource pool configured by a network node or a first UE or a resource pool shared with other signals/channels, within which specific resource pool or the shared resource pool resources are reserved for transmission of the first signal.
According to the embodiment of the application, frequency domain resources are reserved for the transmission of the first signal by using continuous N sub-channels as granularity in a frequency domain, time domain resources are reserved for the transmission of the first signal by using continuous or discontinuous T time slots as granularity in a time domain, wherein N, T is a parameter value reported by user equipment UE and/or a parameter value configured by a network node and/or a pre-configured parameter value, and N, T is a real number greater than or equal to 1.
According to the embodiment of the application, when the resources are reserved for the transmission of the first signal in the shared resource pool, the time-frequency resources allocated for the shared channel and/or the control channel are occupied, and the time-frequency resources allocated for the Automatic Gain Control (AGC) and/or the guard interval (GP) are not occupied.
According to an embodiment of the present application, further comprising: receiving configuration information of a first unit for measuring the first signal, wherein the first unit is one of: a measurement interval for the first signal measurement, or a processing window for the first signal, or a time domain unit for the first signal measurement, or a duration L starting from a starting position S of a resource for transmission of the first signal, or M of the first signals starting from the starting position S of the resource for transmission of the first signal.
According to an embodiment of the present application, the configuration information about the first unit includes at least one of: a period of the first unit, a starting position S of the first unit, a duration L of the first unit, and a bandwidth B of the first unit, wherein the starting position S is a time slot and/or a subframe and/or a system frame in which the UE starts measuring the first signal, wherein the duration L is a time length in which the UE starts measuring the first signal from the starting position S, wherein the first signals of the M number are M number of the first signals that are continuous or discontinuous in time domain, wherein at least one of the bandwidth B, the starting position S, the duration L, and the number M is a parameter value reported by the user equipment UE and/or a parameter value configured by the network node and/or a preconfigured parameter value, wherein B, S, L, M is a real number greater than 0.
According to an embodiment of the present application, the first unit is configured and/or activated based on a request of the network device or the second UE, and measuring the first signal based on the configuration information about the resource comprises: the first signal is measured within the first cell.
According to an embodiment of the present application, the second UE sends a request for configuring and/or activating the first element to a first UE, wherein the first element is configured and/or activated by the first UE or sends a request for configuring and/or activating the first element to a network node by the first UE, the first element is configured and/or activated for the second UE or the second UE sends a request for configuring and/or activating the first element to a further UE belonging to the same UE group as the second UE, wherein the request is forwarded by the further UE to a first UE, the first element is configured and/or activated by the first UE or sends a request for configuring and/or activating the first element to a network node by the first UE, the first element is configured and/or activated for the second UE, or the second UE sends a request for configuring and/or activating the first element to a first UE, or the second UE sends information about the first element and/or the first element is configured and/or activated by the first UE belonging to the same network node.
According to an embodiment of the present application, each first unit has a corresponding identification ID, and the first units are activated or deactivated by the ID.
According to an embodiment of the present application, the first unit for measuring the first signal is configured and/or activated when a result of interception of resources for transmission of said first signal within the first unit satisfies a first condition.
According to an embodiment of the present application, the first condition is: the first UE monitors that the number of resources used for the transmission of the first signal is larger than a first threshold value; and/or the first UE perceives that the duration of the resource for transmission of the first signal is greater than a second threshold value.
According to an embodiment of the present application, the first condition includes at least one of:
in the case that the first UE receives the request of the second UE to configure and/or activate the first unit, the number of resources for transmission of the first signal, which are detected by the first UE, is greater than a third threshold value or a duration is greater than a fourth threshold value, wherein the first unit is configured and/or activated by a network node or the first UE;
in the case where the second UE listens to but does not reserve resources for transmission of the first signal and the second UE informs the first UE of the number or duration of resources for transmission of the first signal being greater than a fifth threshold or duration being greater than a sixth threshold, wherein the first unit is configured and/or activated by the network or the first UE;
In the case where the second UE listens to but does not reserve resources for transmission of the first signal, the number of resources for transmission of the first signal that the second UE listens to is greater than a seventh threshold or a duration is greater than an eighth threshold, wherein the first element is configured and/or activated by the second UE requesting network equipment or first UE; or alternatively
In case the first UE listens to the resources for transmission of one or more of said first signals or the first UE requests the network to configure said first signals, the number of resources for transmission of said first signals selectable among the resources suggested by the first UE among the other UEs belonging to the same UE group as said second UE is greater than a ninth threshold or a duration greater than a tenth threshold, wherein said first unit is configured and/or activated by the network device or said first UE or said other UEs.
According to an embodiment of the present application, the granularity of the number of resources used for transmission of the first signal may be the number of signal resources or resource sets or the number of time slots in which signal resources or resource sets may be transmitted.
According to an embodiment of the present application, at least one of the first threshold value, the second threshold value, the third threshold value, the fourth threshold value, the fifth threshold value, the sixth threshold value, the seventh threshold value, the eighth threshold value, the ninth threshold value, and the tenth threshold value is a parameter value reported by the user equipment UE and/or a parameter value configured by the network node and/or a preconfigured parameter value.
According to an embodiment of the present application, the first signal within the first unit is a high priority and/or is not colliding or overlapping with other signals or channels and is not muted.
According to an embodiment of the present application, the starting position of the first unit for measuring the first signal is equal to the starting position of the nearest next signal configured and/or activated by the network device for the second UE.
According to an embodiment of the present application, the second UE measures the first signal in a configured and/or activated first unit, and the first UE reserves resources for transmission of the first signal in the configured and/or activated first unit.
According to an embodiment of the present application, the resources for transmission of the first signal are reserved based on the first UE listening in a resource pool or being randomly selected, the first signal being sent by the first UE on the reserved resources or the first signal being activated by the first UE.
According to an embodiment of the present application, the second UE listens in the resource pool but does not reserve resources, and the second UE informs the first UE to choose at least a part of the resources for transmission of the first signal among the proposed resources.
According to embodiments of the present application, resources for transmission of the first signal of other UEs belonging to the same UE group as the second UE are reserved by the first UE, or the result of interception by the first UE in a resource pool or suggested resources are sent to the other UEs by the first UE.
According to an embodiment of the present application, the proposed resources may be represented using a bitmap.
According to embodiments of the present application, the first unit is an activated first unit, or a first unit that the second UE requests network and/or first UE activation.
According to an embodiment of the present application, the available time-frequency resources may be unoccupied time-frequency resources and/or occupied time-frequency resources but occupying a signal or channel with a lower priority than the current first signal.
According to another aspect of the present application, there is provided a method performed by a first user equipment, UE, in a communication system, comprising: acquiring configuration information about resources; and transmitting configuration information about the resources to the second UE, wherein the configuration information is used for measuring a first signal, and the first signal is a signal or a signal resource set used for positioning.
According to an embodiment of the present application, the configuration information about the resource includes at least one of: the method comprises the steps of identifying an ID of a first signal, repeating an index ID of the first signal, an ID of a UE, a UE group ID, a mapping mode of the first signal in a time domain and/or a frequency domain, a starting point of the first signal, duration of the first signal, period of the first signal, bandwidth of the first signal, priority of the first signal and timer time of the first signal.
According to another aspect of the present application, 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 the methods of embodiments of the present application.
By the method and the device for signal configuration and measurement, the signals can be configured and measured quickly and effectively.
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, as understood by those skilled in the art, a network "configuring" a resource may mean that the UE may directly use the resource after the network is configured; the network "pre-configured" resources may mean that after the network is pre-configured, the UE may still need to request activation of the resources before the resources can be used. The meaning of "configure" and "pre-configure" in the present disclosure is not limited to the above-described meaning.
In this application, unless explicitly defined otherwise, the term "greater than" may be replaced with "greater than or equal to" and the term "less than" may be replaced with "less than or equal to" and vice versa.
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.
Specifically, in the present invention, a method and apparatus for signal configuration and measurement are provided. In one embodiment of the invention, the method and apparatus are disclosed for determining SL PRS and/or SL PRS resources and/or time-frequency resources of a set of SL PRS resources, performing measurements of SL PRS. In the present embodiment, 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), and the like.
In the present invention, unless otherwise defined or contradicted by context, a first UE may refer to a SL initiator UE, a second UE may refer to a SL responder UE and/or a SL responder UE group, a first resource may refer to a SL PRS resource and/or a set of SL PRS resources, and the first resource may be used for signals for positioning represented, e.g., SL PRS, and the network may refer to a base station and/or an LMF and/or other functional entity in the network and/or other network devices.
The method for the second UE to obtain configuration parameters of the network and/or the first UE configured or preconfigured first resources may comprise a combination of one or more of the following:
The second UE obtains configuration parameters of one or more first resources configured or preconfigured by receiving SCI sent by the first UE, and the manner can enable the SL UE to quickly obtain the configuration parameters of the first resources, so that the configuration of the first resources can be changed in real time;
the second UE obtains configuration parameters of one or more first resources configured or preconfigured by receiving DCI, so that the UE in the coverage area of the base station can quickly obtain the configuration parameters of the first resources, and the configuration of the first resources can be changed in real time conveniently;
the second UE obtains configuration parameters of one or more first resources configured or preconfigured by receiving the MAC CE, and the mode is more suitable for the UE to obtain partial changes of the configuration parameters of the first resources possibly occurring within a period of time; compared to RRC messages, MAC
The CE can flexibly and rapidly indicate the configuration parameters of the first resources and reduce single first resources
System processing time delay when parameter indication is configured;
the second UE obtains configuration parameters of one or more first resources configured or preconfigured by receiving RRC, and the method is more suitable for the UE to obtain the configuration parameters of the first resources which are not changed frequently within a period of time, so that uncertainty and processing time delay caused by multiple dynamic instructions are reduced;
The second UE obtains configuration parameters of the configured or preconfigured one or more first resources by receiving higher layer signaling, for example, the higher layer signaling may be LPP (LTE PositioningProtocol ) and/or NRPPa (NR Positioning Protocol A, NR positioning protocol a), which is more suitable for the case that the LMF requests the UE or the base station to configure the first resources;
o the configuration parameters of the first resource include at least one of the following: the identification ID of the first resource, the repetition index ID of the first resource, the ID of the UE (e.g., where the UE may be one or more of a first UE, a second UE A, or a second UE B), the UE group ID (e.g., where the UE group may be a group including one or more of a first UE, a second UE A, or a second UE B), the mapping manner of the first resource (e.g., the mapping manner may be a mapping manner of the first resource in the time domain and/or the frequency domain, which may be expressed as a comb size), the starting point of the first resource, the duration of the first resource, the period of the first resource, the bandwidth of the first resource, the priority of the first resource, the timer time (timer) of the first resource;
o, the initial value of the timer time (timer) of the first resource is D ms, the timer time (timer) of the first resource is configured as the effective time of the first resource, and the initial value D ms of the timer time gradually decreases by a step length s ms until the initial value D ms is 0. Wherein, D, s is a parameter value reported by the UE according to its own processing capability and/or a parameter value configured by the base station and/or a parameter value preconfigured by the UE, and D, s is a real number greater than 0. Alternatively, s may be equal to the duration of one slot or preconfigured to 1 ms. If the timer time is 0 and the corresponding transmission resource is not allocated to the first resource which is currently configured, discarding the first resource which is currently configured, so as to avoid the measurement of the expired first resource by the UE;
The priority of the first resource may be a parameter value reported by the UE according to its own processing capability and/or a parameter value configured by the base station and/or a parameter value preconfigured and/or a default parameter value received by the UE.
The network may configure a different first resource mapping scheme (comb size) for neighboring second UEs and/or for different UEs within the same second UE group. The adjacent second UE and/or different UEs within the same second UE group are not expected to be configured with the first resources having the same resource mapping scheme (comb size) to avoid collision or overlap of the first resources between the adjacent second UE and/or different UEs within the same second UE group.
The UE may use a particular or dedicated or designated resource pool configured by the network or the first UE or a resource pool shared with other sidelink signals/channels for transmission and measurement of the SL PRS, and the method of reserving one or more first resources by the UE in the particular resource pool and/or in the shared resource pool may comprise a combination of one or more of the following:
in order to ensure the accuracy of SL PRS measurement, in the frequency domain, the UE reserves frequency domain resources for transmission with granularity of first resources in a frequency domain with N continuous subchannels or subcarriers, i.e., a subchannel group or subcarrier group, and the mapping manner of the first resources is mapped in a frequency domain using a comb-like interval (comb). In the time domain, the UE reserves time domain resources for the transmission of the first resources with granularity by using T time slots or symbols which are continuous or discontinuous in the time domain, namely a time slot group or a symbol group;
o when the UE reserves transmission resources for the first resource in the shared resource pool, the first resource can only occupy the time-frequency resources allocated for the PSSCH, cannot occupy the automatic gain control (Automatic Gain Control, AGC) and/or Guard Period (GP), and the time-frequency resources of the PSCCH to avoid collision with the SCI;
when the UE reserves transmission resources for the first resources in the shared resource pool, the first resources can occupy time-frequency resources allocated for PSSCH and/or PSCCH and cannot occupy time-frequency resources where AGC and/or GP are located so as to avoid influence on other signals/channels;
and N, T is a parameter value and/or a preconfigured parameter value which are/is configured by the base station and received by the UE according to the parameter value reported by the UE and/or the self processing capability. Wherein N, T is a real number of 1 or more. The value of N should be less than or equal to the bandwidth of the resource pool configured by the network or the first UE;
o said other side-stream signals/channels comprise at least one of: the system comprises a physical sidelink control channel PSCCH, a physical sidelink data 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.
The network and/or the first UE may configure and/or pre-configure one or more first units for the second UE and/or the second UE group for performing measurements of SL PRS. The configuration information of the first unit may include at least one of: the period of the first unit, the starting position of the first unit, the duration (length) of the first unit, the bandwidth B of the first unit. Optionally, the bandwidth B of the first unit is less than or equal to the bandwidth of the configured resource pool. The first unit may be a measurement interval for the measurement of the first resource, or a processing window for the first resource, or a time domain unit for the measurement of the first resource, or a duration L starting from a start point S of a transmission resource of the first resource, or M (pre) configured or measured first resources starting from a start point S of a transmission resource of the first resource. The starting point S is a time slot/subframe and/or a system frame in which the UE starts to measure the first resource, and the duration (length) L specifies a duration in which the UE starts to measure the first resource from the starting point S. The M (pre) configured or measured first resources starting from the start point S of the transmission resource may be M first resources that are contiguous in the time domain or M first resources that are non-contiguous in the time domain, not containing muted SL PRS resources or resource sets. The bandwidth B, the starting point S, and the duration (length) L, M first resources 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 B, S, L, M is a real number greater than 0.
After the network and/or the first UE configures and/or pre-configures the first resources for the second UE, the second UE performs sidelink positioning reference signal measurement in the configured and/or activated first unit. The method of configuring and/or activating the first unit may comprise a combination of one or more of the following:
requesting the base station to configure and/or activate the first unit for the first resource measurement by the LMF through the NRPPa message, the second UE measuring only the first resource within the activated first unit; the location measurement initiated by the LMF is beneficial to the network to acquire the position information of the UE in real time, and provides network service for the user according to the position of the user;
requesting the configuration and/or activation of the first unit for the first resource measurement from the base station by the second UE and/or the second UE group through the higher layer parameters or uplink control information UCI or UL MAC CE, and/or requesting the configuration and/or activation of the first unit for the first resource measurement from the first UE through the SCI, the second UE and/or the second UE group measuring only the first resources within the activated first unit;
■ Optionally, the second UE may request, through the SCI, to the first UE to configure and/or activate the first unit for SL PRS resource measurement, and the first UE may configure and/or activate the first unit for SL PRS resource measurement for the second UE, or request the base station to configure and/or activate the first unit for SL PRS resource measurement for the second UE, and the second UE obtains the positioning measurement result and/or the location information of the second UE by measuring the SL PRS resource in the configured and/or activated first unit. For example, a second UE outside the base station coverage may request a first element for SL PRS resource measurements from a first UE within the base station coverage via SCI, the first UE within the base station coverage may configure and/or activate, and/or request the base station to configure and/or activate the first element for SL PRS resource measurements for the second UE outside the base station coverage;
■ Optionally, in the case that the first UE is a SL initiator UE that is in the coverage of the base station, the second UE a is a SL initiator UE that is outside the coverage of the base station, and the second UE B is a SL responder UE and/or a SL responder UE group that is outside the coverage of the base station, the second UE B may request, through SCI, to the second UE a first element for configuring and/or activating SL PRS resource measurement, after receiving the request for the first element, the second UE a forwards the request to the first UE, and the first UE may configure and/or activate, and/or request the base station to configure and/or activate the first element for SL PRS resource measurement for the second UE B; the second UE B may also request the first UE for the first unit for SL PRS resource measurement directly through the SCI, where the first UE may configure and/or activate, and/or request the base station to configure and/or activate the first unit for SL PRS resource measurement for the second UE B, and after receiving the configuration information of the first unit, the second UE B may send the configuration information of the first unit to the second UE a through the SCI. For example, a second UE B outside the base station coverage may send a request for a first element through the SCI to a second UE a outside the base station coverage, the second UE a forwarding this request to the first UE within the base station coverage, the first UE may configure and/or activate, and/or request the base station to configure and/or activate the first element for SL PRS resource measurements for the second UE B; the second UE B outside the coverage area of the base station may also directly request the first UE for the first unit for SL PRS resource measurement, where the first UE may configure and/or activate, and/or request the base station to configure and/or activate the first unit for SL PRS resource measurement for the second UE B, where the second UE B may send the configuration information of the first unit to the second UE a through the SCI after receiving the configuration information of the first unit;
The base station or the UE (pre) configures first units for SL PRS resource measurement through high-layer signaling or RRC signaling, each first unit corresponds to one ID, and the UE or the LMF can activate one or more first units through the DCI or SCI or MAC CE or RRC or high-layer signaling through the associated ID to perform SL PRS measurement; the UE or LMF may also deactivate one or more first units by associating an ID to release transmission resources. The default state of the first unit is an activated or deactivated state;
■ Optionally, the second UE may request configuration and/or activation of the first element for SL PRS resource measurement from the first UE through SCI, the first UE or the network may configure and/or activate for the second UE and/or activate one or more (pre) configured first elements for SL PRS resource measurement of the second UE through association ID through DCI or SCI or MAC CE or RRC or higher layer signaling;
if the first UE reserves one or more available time-frequency resources for the first resource transmission by listening or randomly selecting in a resource pool (e.g., a specific resource pool and/or a shared resource pool), the network or the first UE configures and/or activates the first unit if the first condition is satisfied;
■ Optionally, the first condition is that the first UE listens in a resource pool (for example, a specific resource pool and/or a shared resource pool) that the number of transmission resources of the first resource is greater than a corresponding preset threshold value or the duration is greater than a corresponding preset threshold value, and the network or the first UE configures and/or activates a first unit for measurement of the first resource of the second UE;
■ Optionally, the first condition is that the second UE requests the first UE to configure and/or activate the first unit, after the first UE receives the request for configuring and/or activating the first unit, when the first UE listens that the number of transmission resources of the first resource in a resource pool (for example, a specific resource pool and/or a shared resource pool) is greater than a corresponding preset threshold value or duration is greater than a corresponding preset threshold value, the network or the first UE configures and/or activates the first unit for measurement of the first resource of the second UE;
■ Optionally, the first condition is that the second UE listens in a resource pool (for example, a specific resource pool and/or a shared resource pool) but does not reserve the transmission resources of the first resource, the second UE informs the first UE of the number or duration of the transmission resources of the first resource that can be transmitted, and when the number or duration of the transmission resources of the first resource is greater than a corresponding preset threshold value or duration is greater than a corresponding preset threshold value, the network or the first UE configures and/or activates the first unit for measurement of the first resource of the second UE;
■ Optionally, the first condition is that the second UE listens in a resource pool (for example, a specific resource pool and/or a shared resource pool) but does not reserve transmission resources of the first resource, when the number of the transmission resources of the first resource, which the second UE listens to, is greater than a corresponding preset threshold value or the duration is greater than a corresponding preset threshold value, the second UE requests to activate the first unit, and the network or the first UE configures and/or activates the first unit for measurement of the first resource of the second UE;
■ Optionally, in the case that the first UE is a SL initiator UE in the coverage of the base station, the second UE a is a SL initiator UE outside the coverage of the base station, and the second UE B is a SL responder UE and/or a SL responder UE group outside the coverage of the base station, if the first UE listens to one or more transmission resources in a resource pool (for example, a specific resource pool and/or a shared resource pool), or the first UE requests that the network configure the first resource, the first condition is that the number of transmission resources of the first resource that the second UE a can select in the transmission resources suggested by the first UE is greater than a corresponding preset threshold value or the duration is greater than a corresponding preset threshold value, the network or the first UE or the second UE a configures and/or activates the first unit for measurement of the first resource of the second UE B;
■ Optionally, the granularity of the number of transmission resources of the first resource may be the number of slpr resources or resource sets or the number of timeslots in which SL PRS resources or resource sets may be transmitted;
■ The preset threshold value is a parameter value and/or a preset parameter value which are/is configured by a base station and received by the UE according to a parameter value reported by the UE and/or the processing capability of the UE.
Optionally, the first resource in the first unit is a first resource with high priority and/or not colliding or overlapping with other signals or channels and not muted;
the starting position of the first unit for SL PRS resource measurement is equal to the starting position of the nearest next SL PRS configured and/or activated by the network for the UE.
The first UE may reserve one or more available time-frequency resources for transmission of the first resource by listening or randomly selecting in a resource pool (e.g., a particular resource pool and/or a shared resource pool). If the second UE and/or the second UE group performs the measurement of the first resources in the configured and/or activated first unit, the method for the first UE to reserve the transmission resources of the one or more first resources in the configured and/or activated first unit may include one or more of the following:
After the network or the first UE configures or activates one or more first units, the first UE detects by being in a resource pool (e.g., a particular resource pool and/or a shared resource pool)
Reservation of one or more first resources by SCI in an audible or random selective manner
The method comprises the steps that a first UE sends configured or preconfigured SL PRS or activates configured or preconfigured first resources on reserved transmission resources, and a second UE obtains measurement results and/or position information by measuring the first resources transmitted in a first unit so as to reduce resource overhead of positioning reference signals;
after the network or the first UE configures or activates one or more first units, the second UE listens to but does not reserve available time-frequency resources, the second UE informs the first UE of selecting all or part of transmission resources from the suggested transmission resources of the first resources in a mode of SCI or higher layer signaling or auxiliary information for sending the configured or preconfigured SL PRS or activating the configured or preconfigured first resources, and the second UE acquires a measurement result and/or position information by measuring the first resources transmitted in the first units, so that the transmission efficiency of the first UE is improved while the cost of positioning reference signal resources is reduced;
o in case the first UE is a SL initiator UE in the coverage of the base station, the second UE a is a SL initiator UE outside the coverage of the base station, the second UE B is a SL responder UE and/or a SL responder UE group outside the coverage of the base station, after the network or the first UE or the second UE a configures or activates one or more first units, the first UE reserves transmission resources of the first resources for the second UE a in a resource pool (e.g. a specific resource pool and/or a shared resource pool) by means of SCI or higher layer signaling or assistance information or sends a result of interception in the resource pool (e.g. a specific resource pool and/or a shared resource pool) or suggested transmission resources of the first resources for sending configured or preconfigured SL PRS or activating configured or preconfigured first resources, and the second UE B obtains measurement results and/or location information by measuring the first resources transmitted in the first units;
o, the transmission resource of the proposed first resource may notify the first UE or the network or the second UE a by using a bitmap (bitmap), that is, the time slot or symbol that can be transmitted indicates 1, and the time slot or symbol that cannot be transmitted indicates 0, or vice versa;
the first unit may be an activated first unit, i.e. a first unit activated by the network and/or the first UE, or a first unit activated by the second UE and/or the second UE group requesting the network and/or the first UE;
The available time-frequency resources may be unoccupied time-frequency resources and/or occupied time-frequency resources but occupying signals or channels with a lower priority than the current first resource.
In another embodiment, in order to further reduce the positioning error caused by the single-side unidirectional positioning measurement, a single-side bidirectional positioning (RTT) method and/or a double-side bidirectional positioning (double-side RTT) method may be used to further improve the positioning accuracy.
The configuration method of the first resource for implementing the unilateral bilateral positioning and/or bilateral positioning method may include one or more of the following:
and o, taking a time unit of receiving the first resource by the second UE as a starting point, and configuring and/or activating the first resource for the second UE by the network or the first UE or the second UE in a time unit with the duration Rp1, and/or sending the first resource by the second UE.
o taking the time unit of the first resource received by the second UE as a starting point, and in the time unit with the duration of Rp2, configuring and/or activating the first resource for the second UE by the network or the first UE or the second UE, and/or executing the transmission of the first resource by the second UE. When the first UE receives the first resource sent by the second UE, the first UE takes the time unit of the first UE receiving the first resource sent by the second UE as a starting point, and the network or the first UE or the second UE configures and/or activates the first resource for the first UE in the time unit with the duration Rp3, and-
Or the first UE transmits the first resource, the method is more suitable for position measurement executed by using a bilateral bidirectional positioning method, and clock synchronization errors of a receiving end can be further reduced on the basis of the unilateral bidirectional positioning measurement method.
optionally, the second UE configures and/or activates and/or transmits the first resource twice at a time interval of less than or no more than Rp4 time units
And the Rp1, rp2, rp3 and Rp4 are real numbers larger than 0 according to parameter values reported by the user equipment UE and/or parameter values configured by the base station and/or parameter values preconfigured received by the UE. Alternatively, rp1, rp2, rp3 may be equal values of the same parameter. Alternatively, rp1, rp2, rp3, rp4 may be equal values of the same parameter.
optionally, the network may configure the same first resource mapping manner (comb size) for the first UE and the second UE implementing the single-sided bi-directional positioning and/or the double-sided bi-directional positioning method.
The network may be a base station and/or an LMF.
The method for measuring the first resource for implementing the unilateral bilateral positioning and/or bilateral positioning method may include one or more of the following:
o takes a time unit of the first UE sending the first resource as a starting point, the first resource in the Lr1 time length or duration may be used for unilateral bidirectional positioning measurement, and/or the first resource in the Lr2 time length or duration may be used for bilateral bidirectional positioning measurement.
When the first UE and/or the second UE reserve one or more available time-frequency resources for the first resource transmission by listening or randomly selecting in a resource pool (e.g., a specific resource pool and/or a shared resource pool), if a time unit of the first UE sending the first resource is taken as a starting point, the first UE and/or the second UE cannot reserve the transmission resources larger than Oc1 first resources within an Lr1 time length or duration, and/or the first UE and/or the second UE cannot reserve the transmission resources larger than Oc2 first resources within an Lr2 time length or duration, only unilateral unidirectional positioning measurement is performed and the measurement result is reported, or the measurement result is directly discarded. The unilateral unidirectional positioning measurement may comprise at least one of: RSTD (Reference Signal Time Difference) measurement, RSRP
(Reference Signal Received Power) measurement, RSRPP (Reference SignalReceived Path Power) measurement, RTOA (Relative Time of Arrival) measurement, AOA (Azimuth of Arrival) measurement, ZOA (Zenith of Arrival) measurement, AOD (Angle Of Departure) measurement.
And o, the Lr1, lr2, oc1 and Oc2 are real numbers which are larger than 0 according to 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.
optionally, the TypeD Quasi co-location (QCL) relationship of the network or the first UE or the second UE within the Lr1 and/or Lr2 time length is not changed.
optionally, when the first UE and/or the second UE send the first resource twice or more, the first UE and/or the second UE send the first resource by using the same beam, and/or the TypeD quasi-co-located QCL relationship of the first resource sent twice or more is not changed, which is more suitable for bilateral bidirectional positioning measurement.
Fig. 4 is a flow chart of a method according to an embodiment of the present disclosure. In accordance with an embodiment of the present disclosure, the user equipment may receive configuration information about resources at step S401. In step S402, the user equipment may measure a first signal based on configuration information about resources, the first signal being a signal or a signal resource or a set of signal resources for positioning.
Claims (15)
1. A method performed by a second user equipment, UE, in a communication system, comprising:
receiving configuration information about a resource;
a first signal is measured based on configuration information about the resources, the first signal being a signal or signal resource or set of signal resources for positioning.
2. The method of claim 1, wherein the second UE receives configuration information on resources from a network node, or
Wherein the second UE receives configuration information about resources from the first UE.
3. The method of claim 1 or 2, wherein the configuration information about resources comprises at least one of: the method comprises the steps of identifying an ID of a first signal, repeating an index ID of the first signal, an ID of a UE, a UE group ID, a mapping mode of the first signal in a time domain and/or a frequency domain, a starting point of the first signal, duration of the first signal, period of the first signal, bandwidth of the first signal, priority of the first signal and timer time of the first signal.
4. The method of claim 3, wherein the mapping manner received by the second UE is different from the mapping manners received by other UEs of the same UE group to which the second UE belongs; and/or
The mapping mode received by the second UE is different from the mapping mode received by the UE adjacent to the second UE.
5. The method of claim 1, wherein the configuration information about resources comprises: a particular resource pool configured by the network node or the first UE or a resource pool shared with other signals/channels,
wherein resources are reserved for transmission of the first signal within the particular resource pool or the shared resource pool.
6. The method of claim 5, wherein frequency domain resources are reserved for transmission of the first signal in a frequency domain with a granularity of N consecutive subchannels,
wherein time domain resources are reserved for the transmission of the first signal in the time domain with T time slots which are continuous or discontinuous as granularity,
wherein N, T is a parameter value reported by the UE and/or a parameter value configured by the network node and/or a preconfigured parameter value, wherein N, T is a real number greater than or equal to 1.
7. The method of claim 1, further comprising:
configuration information of a first unit for measuring the first signal is received,
wherein the first unit is one of: a measurement interval for the first signal measurement, or a processing window for the first signal, or a time domain unit for the first signal measurement, or a duration L starting from a starting position S of a resource for transmission of the first signal, or M of the first signals starting from the starting position S of the resource for transmission of the first signal.
8. The method of claim 7, wherein the first unit is configured and/or activated based on a request of a network device or the second UE,
Measuring the first signal based on configuration information about the resource includes: the first signal is measured within the first cell.
9. The method of claim 8, wherein,
the second UE sends a request to a first UE for configuring and/or activating the first unit, wherein the first unit is configured and/or activated by the first UE or the first unit is configured and/or activated by the first UE for the second UE, or the first unit is configured and/or activated by the first UE to a network node
The second UE sends a request for configuring and/or activating the first unit to other UEs belonging to the same UE group as the second UE, wherein the request is forwarded by the other UEs to the first UE, the first unit is configured and/or activated by the first UE, or the first unit is configured and/or activated for the second UE, or the first unit is configured and/or activated by the first UE to the network node
The second UE sends a request to a first UE for configuring and/or activating the first unit, and the second UE sends information about the activated first unit to other UEs belonging to the same UE group as the second UE, wherein the first unit is configured and/or activated by the first UE or sends a request to a network node for configuring and/or activating the first unit by the first UE, which is configured and/or activated for the second UE.
10. The method of claim 1, wherein the first unit for measuring the first signal is configured and/or activated when a result of listening within the first unit to resources for transmission of the first signal satisfies a first condition.
11. The method of claim 10, wherein the first condition is: the first UE monitors that the number of resources used for the transmission of the first signal is larger than a first threshold value; and/or
The first UE listens for a duration of a resource for transmission of the first signal greater than a second threshold value.
12. The method of claim 10, wherein the first condition comprises at least one of:
in the case that the first UE receives the request of the second UE to configure and/or activate the first unit, the number of resources for transmission of the first signal, which are detected by the first UE, is greater than a third threshold value or a duration is greater than a fourth threshold value, wherein the first unit is configured and/or activated by a network node or the first UE;
in the case where the second UE listens to but does not reserve resources for transmission of the first signal and the second UE informs the first UE of the number or duration of resources for transmission of the first signal being greater than a fifth threshold or duration being greater than a sixth threshold, wherein the first unit is configured and/or activated by the network or the first UE;
In the case where the second UE listens to but does not reserve resources for transmission of the first signal, the number of resources for transmission of the first signal that the second UE listens to is greater than a seventh threshold or a duration is greater than an eighth threshold, wherein the first element is configured and/or activated by the second UE requesting network equipment or first UE; or alternatively
In case the first UE listens to the resources for transmission of one or more of said first signals or the first UE requests the network to configure said first signals, the number of resources for transmission of said first signals selectable among the resources suggested by the first UE among the other UEs belonging to the same UE group as said second UE is greater than a ninth threshold or a duration greater than a tenth threshold, wherein said first unit is configured and/or activated by the network device or said first UE or said other UEs.
13. The method of claim 10, wherein resources for transmission of the first signal are reserved based on listening or randomly selecting by the first UE in a resource pool, the first signal being sent by the first UE on reserved resources, or the first signal being activated by the first UE.
14. The method of claim 10, wherein the second UE listens in a pool of resources but does not reserve resources, the second UE informing a first UE to select at least a portion of resources for transmission of the first signal among the proposed resources.
15. The method of claim 10, wherein resources for transmission of the first signal by other UEs belonging to the same UE group as the second UE are reserved by the first UE, or a result of interception by the first UE in a resource pool or suggested resources are sent by the first UE to the other UEs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/KR2023/012401 WO2024043662A1 (en) | 2022-08-25 | 2023-08-22 | Method and device for signal configuration and measurement |
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| CN2022110286531 | 2022-08-25 | ||
| CN202211028653 | 2022-08-25 |
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