Terminals and base stations

Abstract

This terminal comprises a reception section which receives, from a base station, configuration information of reference signals transmitted by a plurality of carriers, and a control section which assumes that the timing for performing phase measurement for positioning differs among the plurality of carriers.

Description

Technical Field

[0001] The present invention relates to a terminal and a base station in a wireless communication system.

Background Art

[0002] In 3GPP (3rd Generation Partnership Project), in order to achieve further increase in system capacity, further increase in data transmission speed, further reduction in latency in the radio section, etc., a wireless communication method called 5G or NR (New Radio) (hereinafter, this wireless communication method is referred to as "NR") is being studied. In 5G, in order to meet the requirement of achieving a throughput of 10 Gbps or more and reducing the latency in the radio section to 1 ms or less, various wireless technologies and network architectures are being studied.

[0003] In addition, the study of NR Positioning that performs positioning using a reference signal or the like is underway. Further, as an extension of the function of general-purpose NR Positioning, the study of Carrier Phase Measurement (CPM), which is a high-precision positioning method using carrier phase adopted in GNSS or the like, is underway.

Prior Art Documents

Non-Patent Documents

[0004]

Non-Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In carrier phase measurement, one method for performing Ambiguity Resolution (AR) to determine the wavenumber is to use multiple carriers with different wavelengths (frequencies). In AR, the terminal measures the phase of each carrier.

[0006] However, when using multiple carrier waves with different wavelengths (frequencies), transmission timing errors caused by the transmitting antenna connector may prevent the phase of each carrier wave from being properly measured at the measurement point (terminal).

[0007] The present invention has been made in view of the above points, and aims to provide a technique for reducing the effects of transmission timing errors when multiple carriers with different wavelengths are used in carrier phase measurement. [Means for solving the problem]

[0008] According to the disclosed technology, a receiving unit receives setting information of a reference signal transmitted by multiple carriers from a base station, Among the aforementioned multiple carriers, Due to a transmission timing error on the sending side, A control unit that assumes that the timing of phase measurement for positioning will differ, A terminal equipped with, The receiving unit performs phase measurements using the reference signal at different timings for the multiple carriers, based on the phase measurement timing offset that compensates for the transmission timing error. A device will be provided. [Effects of the Invention]

[0009] The disclosed technology provides a technique for mitigating the effects of transmission timing errors when using multiple carriers with different wavelengths in carrier phase measurement. [Brief explanation of the drawing]

[0010] [Figure 1] This figure illustrates a wireless communication system in an embodiment of the present invention. [Figure 2] This figure illustrates a wireless communication system in an embodiment of the present invention. [Figure 3]It is a diagram showing a configuration in which there are a plurality of base stations. [Figure 4] It is a diagram for explaining carrier phase measurement (CPM). [Figure 5] It is a diagram for explaining carrier phase measurement (CPM). [Figure 6] It is a diagram for explaining an example of AR. [Figure 7] It is a diagram for explaining an example of AR. [Figure 8] It is a diagram for explaining a problem. [Figure 9] It is a diagram for explaining a problem. [Figure 10] It is a diagram for explaining a basic operation example. [Figure 11] It is a diagram for explaining an operation example of the first embodiment. [Figure 12] It is a diagram for explaining an operation example of the second embodiment. [Figure 13] It is a diagram showing an example of the functional configuration of the base station 10 and the LMF 30 in an embodiment of the present invention. [Figure 14] It is a diagram showing an example of the functional configuration of the terminal 20 in an embodiment of the present invention. [Figure 15] It is a diagram showing an example of the hardware configuration of the base station 10 or the terminal 20 or the LMF 30 in an embodiment of the present invention. [Figure 16] [[ID=**39**]]It is a diagram showing an example of a vehicle. **[Embodiments for Carrying Out the Invention]**

[0011] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the embodiments described below are examples, and the embodiments to which the present invention is applied are not limited to the following embodiments.

[0012] (System Configuration) Note: In the above translation, for item , the original text "車両の一例を示す図である。" is translated as "It is a diagram showing an example of a vehicle." to make it more in line with English expression habits.FIG. 1 is a diagram for explaining a wireless communication system according to an embodiment of the present invention. As shown in FIG. 1, the wireless communication system according to the embodiment of the present invention includes a base station 10 and a terminal 20. Further, the core network is provided with an LMF 30 and is communicable with the base station 10. Note that the LMF 30 may communicate with the base station 10 via an AMF. The LMF 30 is an example of a network device.

[0013] In FIG. 1, one base station 10 and one terminal 20 are shown, but this is an example, and there may be a plurality of each. For example, a plurality of base stations 10 that are the transmission sources of the DL-PRS (positioning reference signal) received by the terminal 20 may be provided. One or more or all of the plurality of base stations 10 may be airborne devices (e.g., satellites, HAPS).

[0014] The base station 10 is a communication device that provides one or more cells and performs wireless communication with the terminal 20. The physical resources of the wireless signal are defined in the time domain and the frequency domain. The time domain may be defined by the number of OFDM symbols, and the frequency domain may be defined by the number of subcarriers or the number of resource blocks. Also, the TTI (Transmission Time Interval) in the time domain may be a slot or a subframe. Note that a cell and a CC may be regarded as synonymous.

[0015] The base station 10 is capable of performing carrier aggregation in which a plurality of cells (a plurality of CCs (component carriers)) are bundled to communicate with the terminal 20. In carrier aggregation, one PCell (primary cell) and one or more SCells (secondary cells) are used.

[0016] Base station 10 transmits synchronization signals and system information to terminal 20. Synchronization signals are, for example, NR-PSS and NR-SSS. System information is transmitted, for example, via NR-PBCH or PDSCH, and is also called broadcast information. As shown in Figure 1, base station 10 transmits control signals or data to terminal 20 via DL (Downlink) and receives control signals or data from terminal 20 via UL (Uplink). Here, signals transmitted via control channels such as PUCCH and PDCCH are called control signals, and signals transmitted via shared channels such as PUSCH and PDSCH are called data, but this is just an example of terminology. In addition, UCI (Uplink Control Information) is transmitted via PUCCH or PUSCH.

[0017] Terminal 20 is a communication device equipped with wireless communication capabilities, such as a smartphone, mobile phone, tablet, wearable device, or M2M (Machine-to-Machine) communication module. As shown in Figure 1, Terminal 20 receives control signals or data from the base station 10 via DL and transmits control signals or data to the base station 10 via UL, thereby utilizing various communication services provided by the wireless communication system. Terminal 20 may also be referred to as UE and base station 10 as gNB. Terminal 20 also has a carrier phase positioning function.

[0018] Terminal 20 is capable of performing carrier aggregation, which involves bundling multiple cells (multiple CCs (component carriers)) together to communicate with base station 10. Carrier aggregation uses one PCell (primary cell) and one or more SCells (secondary cells). In addition, a PUCCH-SCell with a PUCCH may be used.

[0019] LMF30 is a function (device) responsible for communication control related to location information services as defined in 5GC. LMF30 may also be called a location management server, location management device, or network device. For example, LMF30 can receive measurement results (phase, received power, time difference, angle, etc.) of a reference signal from terminal 20 or base station 10 and calculate the location of terminal 20. In addition, LMF30 can provide setting information or control information related to positioning to terminal 20 and base station 10.

[0020] Figure 2 shows an example of a wireless communication system configuration when DC (Dual connectivity) is implemented. As shown in Figure 2, the system is equipped with a base station 10A which acts as the MN (Master Node) and a base station 10B which acts as the SN (Secondary Node). Base stations 10A and 10B are each connected to the core network 40. Terminal 20 can communicate with both base station 10A and base station 10B.

[0021] A cell group provided by base station 10A, which is the MN (Mobile Network Unit), is called an MCG (Master Cell Group), and a cell group provided by base station 10B, which is the SN (Mobile Network Unit), is called an SCG (Secondary Cell Group). In a data center, an MCG consists of one PCell and one or more SCells, and an SCG consists of one PSCell (Primary SCell) and one or more SCells.

[0022] The processing operations in this embodiment may be performed with the system configuration shown in Figure 1, the system configuration shown in Figure 2, or any other system configuration. Figure 3 shows an example in which terminal 20 performs positioning by receiving reference signals from multiple base stations 10A to 10C. Basically, the position of terminal 20 can be determined by determining the distance between terminal 20 and the multiple base stations.

[0023] The distance between terminal 20 and base station can be determined by the signal arrival time or by the wavenumber (wavenumber × wavelength) of the signal carrier. In this embodiment, as will be described later, the wavenumber of the carrier is used.

[0024] (Regarding the issues) The reference signal used for positioning will be called PRS. In this embodiment, terminal 20 performs Carrier Phase Measurement (CPM). As mentioned above, CPM is a high-precision positioning method that uses carrier phase, which is employed in GNSS and other systems.

[0025] Figure 4 shows an overview of CPM. Figure 4 shows an example where base station 10 is a satellite. As shown in Figure 4, CPM determines the position of a positioning point by using the carrier wave number and the received phase difference of the carrier wave (phase of the portion less than one wave) to determine the distance between the reference point and the positioning point. Specifically, the arrival distance L can be expressed as "Arrival distance (L) = Carrier wave wavelength (λ) × Wave number (N) + Shift due to received phase difference (Δλ)". The phase corresponding to Δλ can be determined by measuring the reference signal, but the wave number (N) cannot be determined by a single measurement (a measurement using one carrier wave). As shown in Figure 5, when using the L1 signal, there are approximately 500 candidates for N (wave number) in a width of 100m.

[0026] In CPM, the process of determining the wavenumber (N) is called Ambiguity Resolution (AR). In GNSS, it is common practice to use multiple satellites to calculate initial values ​​(i.e., use propagation time to narrow down the possible locations to some extent) before performing AR.

[0027] Several methods have been proposed for determining the wavenumber (N), but the following methods (1) and (2) are representative.

[0028] (1) Methods that utilize satellite movement Because GPS satellites constantly change their coordinates, the number of waves (N) is narrowed down by receiving the signal multiple times with a receiver. Figure 6 illustrates this method.

[0029] (2) A method that utilizes multiple carrier waves of different frequencies By utilizing the phases of carrier waves with different wavelengths (frequencies), the number of candidate points can be significantly reduced. For example, L1 signal (1575.42 MHz) and L2 signal (1227.60 MHz) can be used as carrier waves with different wavelengths. An image of this method is shown in Figure 7. The proposal in this embodiment targets the method of using multiple carrier waves of different frequencies as described in (2) above.

[0030] In NR, it is assumed that the PRS resources used in CPM's AR are configured on multiple component carriers (CCs). Note that component carriers can also be simply referred to as carriers.

[0031] As mentioned above, when performing CC multiplexing, a signal transmission timing error occurs due to the antenna connector on the transmitting side. Therefore, the existing specification TS38.104 specifies an allowable timing error (Time Alignment Error: TAE) for each CA pattern assuming MIMO CA. The specification is shown in Figure 8. TAE is the maximum value of the timing difference between two different signals.

[0032] When performing CPM AR using multiple carriers with different wavelengths, transmission timing errors between CCs may prevent the phase measurement (phase difference detection) of each carrier at the appropriate timing. For example, as shown in Figure 9, when CC#0 and CC#1 are used as multiple carriers with different wavelengths, transmission timing errors cause a shift in the timing at which the phase should be measured. If CC#0 and CC#1 are measured simultaneously without considering this shift, it will be impossible to obtain appropriate phase measurement results.

[0033] The following describes techniques to mitigate the impact of PRS transmission timing errors in CPM.

[0034] (Summary of the embodiment) The following describes the 0th to 3rd embodiments. The operational overview of the 0th to 3rd embodiments is as follows. In the following description, "network (NW)" may be replaced with "base station 10 (or LMF30)". Also, in the following description, "CC" may be replaced with "cell".

[0035] 0th Embodiment (High-Level Proposal): Terminal 20 is assumed to have carrier phase measurement (CPM) configured.

[0036] As a variation of the first embodiment, it may be assumed that terminal 20 is configured by the network to report carrier phase information (phase measurement results) as a DL-PRS measurement result.

[0037] First embodiment: When CPM is set, terminal 20 assumes a phase measurement timing for each PRS resource.

[0038] Second embodiment: Terminal 20 assumes that when CPM is set, assistance data (AD) related to the phase measurement timing is signaled (notified) from LMF30 to terminal 20.

[0039] Third embodiment: The LMF30 may use assistance information (AI) to notify the base station 10 of the phase measurement timing offset (PMTO).

[0040] The 0th to 3rd embodiments enable the application of carrier phase measurement even when transmission timings differ between PRS resources (e.g., during CA), thereby achieving high-precision positioning. Each embodiment will be described in detail below. The 0th to 3rd embodiments can be implemented in any combination.

[0041] (0th embodiment) In the first embodiment, it is assumed that terminal 20 is configured for carrier phase measurement (CPM). It may also be assumed that terminal 20 is configured by the network to report carrier phase information (phase measurement results) as a DL-PRS measurement result. A basic example of operation in the first embodiment will be explained with reference to Figure 10.

[0042] In S101, terminal 20 transmits capability information (UE capability) to base station 10. However, S101 may be omitted.

[0043] In S102, the base station 10 transmits configuration information regarding carrier phase measurement to the terminal 20, and the terminal 20 receives it. The configuration information includes, for example, PRS resource information and PMTO information, which will be described later.

[0044] For example, in S103, terminal 20 receives DL-PRS signals transmitted simultaneously using multiple CCs based on the DL-PRS configuration information, and measures the phase of each CC at terminal 20. Terminal 20 may perform positioning calculations using the measurement results, or it may report the measurement results to the network.

[0045] (First Embodiment) In the first embodiment, when CPM is set by the base station 10, terminal 20 assumes a phase measurement timing per PRS resource. For example, when terminal 20 performs CPM (including AR), it uses a phase measurement timing per PRS resource to measure the phase of each of the multiple carriers. Options 1 and 2 are described as more specific examples.

[0046] <First Embodiment: Option 1> Terminal 20 assumes that when performing AR on multiple PRS resources, the timing of phase measurement may differ for each PRS resource. Here, multiple PRS resources correspond to multiple carriers measured when terminal 20 performs CPM.

[0047] For example, when using PRS resource 1 and PRS resource 2, base station 10 transmits a PRS on carrier 1 using PRS resource 1, and another PRS on carrier 2 using PRS resource 2. Terminal 20 receives the PRS transmitted on each carrier and measures the phase of each carrier at different timings according to the PMTO described later.

[0048] Furthermore, the above-mentioned "multiple PRS resources" may be rephrased as "multiple PRS resource sets" or "multiple CCs."

[0049] For example, one PRS resource set may correspond to one carrier wave (which may also be called a CC), and that single PRS resource set may contain multiple PRS resources transmitted on that carrier wave (CC). For example, suppose PRS resource set 1 corresponds to carrier wave 1 and PRS resource set 2 corresponds to carrier wave 2, and terminal 20 is configured to use carrier wave 1 (or CC1) and carrier wave 2 (or CC2).

[0050] For example, the above configuration includes PRS resource A from PRS resource set 1 and PRS resource B from PRS resource set 2. Terminal 20 uses these resources to perform phase measurement using the PRS transmitted on carrier wave 1 and the PRS transmitted on carrier wave 2.

[0051] <First Embodiment: Option 1: Regarding PMTO> Regarding the timing for measuring the phase of each CC (or carrier wave), a phase measurement timing offset (PMTO) may be specified in the specifications. In that case, terminal 20 measures the phase of each CC based on the timing indicated by the PMTO specified in the specifications.

[0052] PMTO represents the timing difference (timing offset) between at least two CCs. PMTO may specify a timing offset between any two CCs, or it may specify a timing offset between the CCs constituting each CA (contiguous), inter-band CA (non-contiguous), and intra-band CA. Furthermore, the PMTO value may differ between FR1 and FR2.

[0053] Furthermore, PMTO may be notified (signaled) from base station 10 to terminal 20. The notification may be performed, for example, by RRC signaling. Regarding the method of PMTO notification, a PMTO corresponding to the index of a PRS resource already set up in terminal 20 (which may be a pair of two indices) may be notified, or the PMTO may be notified together with the CC index.

[0054] Alternatively, multiple PMTOs (candidate PMTOs to be actually used) may be notified from the base station 10 to the terminal 20 via RRC signaling, and the PMTO (index) to be actually used from among these multiple PMTOs may be instructed from the base station 10 to the terminal 20 via MAC CE or DCI.

[0055] Alternatively, terminal 20 may determine the PMTO. For example, terminal 20 measures the TAE (transmission timing error at base station 10) by measuring the difference in the reception timing of signals (e.g., reference signals) between the CCs whose PMTO is to be determined, and uses the measurement result as the PMTO. Alternatively, terminal 20 may report the PMTO obtained as a measurement result to base station 10 along with the combination of CC index (or BWP ID) of the two CCs that performed the measurement.

[0056] Furthermore, when terminal 20 receives a PMTO estimation instruction (TAE estimation instruction) from base station 10, it may estimate (determine) the PMTO itself and perform CPM using the determined value. If terminal 20 does not receive a PMTO estimation instruction (TAE estimation instruction) from base station 10, terminal 20 may use the aforementioned default value or the value set by base station 10.

[0057] <First Embodiment: Option 1: Operation Example> An example of operation will be explained with reference to Figure 10. In S102, terminal 20 receives configuration information from base station 10, including multiple PRM resources and PMTO for performing CPM.

[0058] In S104, the phase of each CC is measured using the setting information. For example, suppose that the PMTO between CC#0 and CC#1 is set (or specified or estimated) as shown in Figure 11. Terminal 20 measures the phase of CC#0 at the timing indicated by A, and measures the phase of CC#1 at the timing indicated by B, which is a PMTO later than the timing indicated by A. Terminal 20 performs positioning calculations itself using the measurement results. Alternatively, terminal 20 may report the measurement results to LMF30, and LMF30 may perform positioning calculations.

[0059] <First Embodiment: Option 2> Next, let's explain Option 2. In Option 2, it is assumed that when terminal 20 performs AR on multiple PRS resources, the timing of phase measurement is the same for each PRS resource. In Option 2, for example, it is assumed that base station 10 adjusts the transmission timing for each PRS resource in anticipation of transmission timing errors.

[0060] For example, when using PRS resource 1 and PRS resource 2, base station 10 transmits a PRS on carrier wave 1 using PRS resource 1, and another PRS on carrier wave 2 using PRS resource 2. Terminal 20 measures the PRS transmitted on each carrier wave at the same time and measures the phase of each carrier wave.

[0061] The phrase "multiple PRS resources" above may be replaced with "multiple PRS resource sets" or "multiple CCs."

[0062] For example, one PRS resource set may correspond to one carrier wave (which may also be called a CC), and that single PRS resource set may contain multiple PRS resources transmitted on that carrier wave (CC). For example, suppose PRS resource set 1 corresponds to carrier wave 1 and PRS resource set 2 corresponds to carrier wave 2, and terminal 20 is configured to use carrier wave 1 (or CC1) and carrier wave 2 (or CC2).

[0063] For example, the above configuration includes PRS resource A from PRS resource set 1 and PRS resource B from PRS resource set 2. Terminal 20 uses these resources to perform phase measurement using the PRS transmitted on carrier wave 1 and the PRS transmitted on carrier wave 2.

[0064] <Regarding the operation of Option 1 and Option 2> For example, terminal 20 may report capability information to base station 10 indicating that it supports option 1. Base station 10 may set the PMTO described in option 1 only for terminal 20 that transmitted the capability information.

[0065] Furthermore, it may be assumed that when configuring the CPM, terminal 20 receives information from base station 10 instructing it to perform operation under option 1, or information instructing it to perform operation under option 2. If operation under option 1 is set (instructed) by terminal 20, it will perform operation under option 1, and if operation under option 2 is set (instructed) by terminal 20, it will perform operation under option 2.

[0066] With the technology according to the first embodiment described above, the terminal 20 can perform measurements at an appropriate timing, taking into account transmission timing errors between PRS resources. Furthermore, since the terminal 20 can compensate for timing errors using parameters notified from the base station 10, more accurate positioning becomes possible.

[0067] (Second Embodiment) Next, a second embodiment will be described. In the second embodiment, it may be assumed that when CPM is set for terminal 20, assistance data (AD) related to the phase measurement timing is notified (signaled) from LMF30 to terminal 20.

[0068] An example of operation in the second embodiment will be described with reference to Figure 12. In S201, CPM is configured from the base station 10 to the terminal 20. The configuration information here includes, for example, the PRS resources for each CC in the multiple CCs used by CPM.

[0069] In S202, assistance data (AD) is notified from LMF30 to terminal 20, for example, via LPP signaling.

[0070] The assistance data includes, for example, the PMTO described in Option 1 of the first embodiment. Upon receiving the PMTO, terminal 20 can perform phase measurement with compensation for transmission timing errors, as described in Option 1 of the first embodiment.

[0071] Furthermore, the assistance data may include a PMTO measurement request. Upon receiving this measurement request, terminal 20 estimates (determines) the PMTO as described above. Using the estimated PMTO, terminal 20 may perform a phase measurement that compensates for transmission timing errors, as described in Option 1 of the first embodiment. Terminal 20 may also report the estimated PMTO to base station 10 or LMF 30. Upon receiving the PMTO report, base station 10 can perform the operation described in Option 2 of the first embodiment.

[0072] Furthermore, the assistance data may include existing information supported by Rel-16 / 17 NR (e.g., PRS ID, Cell ID, expected RSTD, Positioning frequency layer, TRP location, beam info, etc.) (Non-Patent Literature 1).

[0073] According to the technology of the second embodiment described above, the terminal 20 or base station 10 can compensate for transmission timing errors between PRS resources using the notified parameters, thereby enabling more accurate positioning.

[0074] (Third embodiment) Next, a third embodiment will be described. The third embodiment may be implemented in combination with any of the embodiments from the 0th to the 2nd embodiment. In the third embodiment, the LMF30 may notify the base station 10 of the PMTO using assistance information (AI). NRPPa signaling may be used as the signaling here.

[0075] Upon receiving a PMTO notification, base station 10 can perform the operation described in Option 2 of the first embodiment. Alternatively, base station 10 may set (notify) the PMTO to terminal 20. This allows terminal 20 to perform the operation described in Option 1 of the first embodiment.

[0076] For example, the LMF30 may store the PMTO of each base station in advance and notify the corresponding base station 10 of this information. Alternatively, the LMF30 may store the PMTO received from the terminal 20 in response to the PMTO measurement instruction described in the second embodiment for each base station and notify the corresponding base station 10 of this information.

[0077] According to the technology of the third embodiment described above, the terminal 20 or base station 10 can compensate for transmission timing errors between PRS resources using the notified parameters, thereby enabling more accurate positioning.

[0078] (Other examples) The following describes examples that can be applied to any of the 0th to 3rd embodiments.

[0079] In this embodiment, DL-PRS is used as the reference signal for the DL used for positioning, but this is just an example, and a different DL reference signal (or synchronization signal) may be used instead of DL-PRS. Furthermore, the reference signal may be interpreted as a positioning signal, a reference signal, or the like.

[0080] Furthermore, "signaling" may be reinterpreted as "configure with RRC," "activate / deactivate / update with MAC-CE," or "indicate with DCI." "Ambiguity Resolution (AR)" may be reinterpreted as "Ambiguity estimation," "Ambiguity fixing," or similar terms.

[0081] Furthermore, "Carrier Phase Measurement (CPM)" may be rephrased as "Carrier Phase Positioning (CPP)," "Phase-based positioning," etc. "Phase Measurement Timing Offset (PMTO)" may be rephrased as "Measurement timing offset," "Phase offset," etc. "Assistance Data (AD)" and "Assistance Information (AI)" may be rephrased as "Assist Data (AD)" and "Assist Information (AI)," etc.

[0082] (Device configuration) Next, we will describe an example of the functional configuration of the base station 10 and terminal 20 that perform the processes and operations described above. The base station 10 and terminal 20 include the functions to implement all of the embodiments described above. However, the base station 10 and terminal 20 may each have only the functions of one of the embodiments.

[0083] <Base station 10> Figure 13 shows an example of the functional configuration of a base station 10. As shown in Figure 13, the base station 10 has a transmitting unit 110, a receiving unit 120, a setting unit 130, and a control unit 140. The functional configuration shown in Figure 13 is merely an example. The names of the functional categories and functional units can be anything as long as they can perform the operations according to the embodiment of the present invention. Also, the transmitting unit 110 and the receiving unit 120 may be collectively referred to as the communication unit.

[0084] The transmitting unit 110 includes the function of generating a signal to be transmitted to the terminal 20 and transmitting the signal wirelessly. The transmitting unit 110 can also transmit signals to network devices such as the LMF 30. The receiving unit 120 includes the function of receiving various signals transmitted from the terminal 20 and obtaining information from the received signals, for example, information from a higher layer. The receiving unit 120 can also receive signals from network devices such as the LMF 30. In addition, the transmitting unit 110 has the function of transmitting NR-PSS, NR-SSS, NR-PBCH, DL / UL control signals, DCI via PDCCH, data via PDSCH, etc. to the terminal 20.

[0085] The setting unit 130 stores pre-configured setting information and various setting information to be transmitted to the terminal 20 in a storage device provided by the setting unit 130, and reads it from the storage device as needed.

[0086] The control unit 140 schedules DL reception or UL transmission of terminal 20 via the transmission unit 110. The control unit 140 also includes a function for LBT (Low-Block Transmission). The functions related to signal transmission in the control unit 140 may be included in the transmission unit 110, and the functions related to signal reception in the control unit 140 may be included in the reception unit 120. The control unit 110 also uses PMTO (Performance-Propelled Timer) to adjust the transmission timing so that it is synchronized across multiple carriers. The transmission unit 110 may also be called the transmitter, and the reception unit 120 may be called the receiver.

[0087] Furthermore, the LMF30 may also have the configuration shown in Figure 13. When the configuration shown in Figure 13 is an LMF, the transmitting unit 110 transmits signals to other network devices (including base stations), and the receiving unit 120 receives signals from other network devices (including base stations).

[0088] <Terminal 20> Figure 14 shows an example of the functional configuration of terminal 20. As shown in Figure 14, terminal 20 has a transmitting unit 210, a receiving unit 220, a setting unit 230, and a control unit 240. The functional configuration shown in Figure 14 is merely an example. The names of the functional categories and functional units can be anything as long as they can perform the operations according to the embodiment of the present invention. The transmitting unit 210 and the receiving unit 220 may be collectively referred to as the communication unit.

[0089] The transmitting unit 210 creates a transmission signal from the transmission data and transmits the transmission signal wirelessly. The receiving unit 220 wirelessly receives various signals and acquires signals from higher layers from the received physical layer signals. The receiving unit 220 also has the function of receiving NR-PSS, NR-SSS, NR-PBCH, DL / UL / SL control signals, DCI via PDCCH, data via PDSCH, etc. transmitted from the base station 10. For example, the transmitting unit 210 may transmit PSCCH (Physical Sidelink Control Channel), PSSCH (Physical Sidelink Shared Channel), PSDCH (Physical Sidelink Discovery Channel), PSBCH (Physical Sidelink Broadcast Channel), etc. as D2D communication to another terminal 20, and the receiving unit 220 may receive PSCCH, PSSCH, PSDCH or PSBCH, etc. from the other terminal 20. The transmitting unit 210 also includes the antenna port described in this embodiment.

[0090] The setting unit 230 stores various setting information received from the base station 10 or other terminals by the receiving unit 220 in a storage device provided in the setting unit 230, and reads it from the storage device as needed. The setting unit 230 also stores pre-configured setting information.

[0091] The control unit 240 controls the terminal 20. The signal transmission functions of the control unit 240 may be included in the transmission unit 210, and the signal reception functions of the control unit 240 may be included in the reception unit 220. The transmission unit 210 may also be called the transmitter, and the reception unit 220 may be called the receiver. Phase measurement may be performed by either the reception unit 220 or the control unit 240.

[0092] <Note> The terminal 20 and base station 10 may be configured as, for example, the terminal and base station described in the following sections. (Additional note 1) A receiving unit that receives setting information for a reference signal transmitted by multiple carriers from a base station, A control unit that assumes that the timing of phase measurement for positioning differs among the multiple carriers, A terminal equipped with the following features. (Additional note 2) The receiving unit performs phase measurements using the reference signal at different timings for the multiple carriers, using a defined timing offset or a timing offset notified by the base station. The terminals listed in Appendix 1. (Additional note 3) The control unit estimates the timing offset between the multiple carriers and performs phase measurements on the multiple carriers at timings based on the estimated timing offset. The terminals listed in Appendix 1. (Additional note 4) A transmitting unit transmits capability information to the base station indicating that it has the ability to perform phase measurements at different timings among the multiple carriers. A terminal as described in any one of the appendices 1 to 3, further comprising the above. (Additional note 5) A transmitting unit that transmits setting information for a reference signal transmitted by multiple carriers to the terminal, A control unit adjusts the transmission timing so that the timing of reference signal transmission is synchronized among the multiple carriers. A base station equipped with the necessary equipment. (Additional note 6) A receiving unit that receives the timing offset used to adjust the transmission timing from the network device. A base station as described in Appendix 5, further comprising:

[0093] Any of the configurations described in the above sections provides techniques to mitigate the effects of transmission timing errors when using multiple carriers with different wavelengths in carrier phase measurement. Furthermore, according to appendices 2, 3, and 6, timing errors can be appropriately compensated for by using timing offsets. According to appendice 4, operation can be performed according to the capabilities of the terminal.

[0094] (Hardware configuration) The block diagrams (Figures 13 and 14) used in the description of the above embodiments show functional units. These functional blocks (components) are realized by any combination of at least one of hardware and software. Furthermore, the method of realizing each functional block is not particularly limited. That is, each functional block may be realized using one device that is physically or logically coupled, or it may be realized using two or more physically or logically separated devices that are directly or indirectly connected (for example, using wired or wireless connections). A functional block may be realized by combining the one or more devices with software.

[0095] Functions include, but are not limited to, judgment, decision, judgment, calculation, calculation, processing, derivation, investigation, exploration, confirmation, reception, transmission, output, access, resolution, selection, selection, establishment, comparison, assumption, expectation, assumption, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating (mapping), and assigning. For example, a functional block (configuration part) that enables transmission is called a transmitting unit or transmitter. As mentioned above, the method of implementation is not particularly limited.

[0096] For example, the base station 10, terminal 20, etc. in one embodiment of the present disclosure may function as a computer that processes the wireless communication method of the present disclosure. Figure 15 is a diagram showing an example of the hardware configuration of the base station 10, terminal 20 and LMF 30 according to one embodiment of the present disclosure. The base station 10 and terminal 20 described above may be physically configured as a computer device including a processor 1001, storage device 1002, auxiliary storage device 1003, communication device 1004, input device 1005, output device 1006, bus 1007, etc.

[0097] In the following explanation, the term "device" can be replaced with "circuit," "device," "unit," etc. The hardware configuration of the base station 10 and terminal 20 may include one or more of the devices shown in the figure, or it may be configured without some of the devices.

[0098] Each function in the base station 10 and terminal 20 is realized by loading predetermined software (programs) onto hardware such as the processor 1001 and storage device 1002, which allows the processor 1001 to perform calculations, control communication by the communication device 1004, and control at least one of the reading and writing of data in the storage device 1002 and auxiliary storage device 1003.

[0099] The processor 1001 controls the entire computer, for example, by running an operating system. The processor 1001 may consist of a central processing unit (CPU) that includes interfaces with peripheral devices, control devices, arithmetic units, registers, etc. For example, the control unit 140, control unit 240, etc., described above may be implemented by the processor 1001.

[0100] Furthermore, the processor 1001 reads programs (program code), software modules, or data from at least one of the auxiliary storage device 1003 and the communication device 1004 into the storage device 1002, and executes various processes accordingly. The program used is one that causes a computer to execute at least a part of the operations described in the above embodiment. For example, the control unit 140 of the base station 10 shown in Figure 13 may be implemented by a control program stored in the storage device 1002 and operated by the processor 1001. Also, for example, the control unit 240 of the terminal 20 shown in Figure 14 may be implemented by a control program stored in the storage device 1002 and operated by the processor 1001. Although the above-described processes have been explained as being executed by one processor 1001, they may be executed simultaneously or sequentially by two or more processors 1001. The processor 1001 may be implemented by one or more chips. The program may be transmitted from the network via a telecommunications line.

[0101] The storage device 1002 is a computer-readable recording medium and may consist of at least one of the following: ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electrically Erasable Programmable ROM), RAM (Random Access Memory), etc. The storage device 1002 may also be called a register, cache, main memory, etc. The storage device 1002 can store executable programs (program code), software modules, etc., for implementing a communication method according to one embodiment of this disclosure.

[0102] The auxiliary storage device 1003 is a computer-readable recording medium and may consist of at least one of the following: an optical disc such as a CD-ROM (Compact Disc ROM), a hard disk drive, a flexible disk, a magneto-optical disk (e.g., a compact disc, a digital multipurpose disc, a Blu-ray® disc), a smart card, flash memory (e.g., a card, a stick, a key drive), a floppy® disk, a magnetic strip, etc. The above-mentioned storage medium may also be a database, server, or other suitable medium that includes at least one of the storage device 1002 and the auxiliary storage device 1003.

[0103] The communication device 1004 is hardware (transmitting / receiving device) for communicating between computers via at least one of a wired network and a wireless network, and is also referred to as a network device, network controller, network card, communication module, etc. The communication device 1004 may be configured to include high-frequency switches, duplexers, filters, frequency synthesizers, etc., in order to implement at least one of frequency division duplex (FDD) and time division duplex (TDD). For example, the transmitting and receiving antennas, amplifier section, transmitting and receiving section, transmission path interface, etc., may be implemented by the communication device 1004. The transmitting and receiving section may be implemented in a physically or logically separated manner, with a transmitting section and a receiving section.

[0104] The input device 1005 is an input device that accepts input from an external source (e.g., a keyboard, mouse, microphone, switch, button, sensor, etc.). The output device 1006 is an output device that outputs to an external source (e.g., a display, speaker, LED lamp, etc.). The input device 1005 and the output device 1006 may be configured as an integrated unit (e.g., a touch panel).

[0105] Furthermore, each device, such as the processor 1001 and the storage device 1002, is connected by a bus 1007 for communicating information. The bus 1007 may be configured using a single bus, or different buses may be configured for each device.

[0106] Furthermore, the base station 10, terminal 20, and LMF 30 may be configured to include hardware such as a microprocessor, digital signal processor (DSP), application-specific integrated circuit (ASIC), programmable logic device (PLD), and field programmable gate array (FPGA), and some or all of each functional block may be realized by such hardware. For example, the processor 1001 may be implemented using at least one of these hardware components.

[0107] Furthermore, a terminal 20, a base station 10, or an LMF 30 may be provided in the vehicle 2001. Figure 16 shows an example of the configuration of the vehicle 2001. As shown in Figure 11, the vehicle 2001 includes a drive unit 2002, a steering unit 2003, an accelerator pedal 2004, a brake pedal 2005, a shift lever 2006, front wheels 2007, rear wheels 2008, an axle 2009, an electronic control unit 2010, various sensors 2021 to 2029, an information service unit 2012, and a communication module 2013. The terminal 20 or base station 10 described in each aspect / embodiment in this disclosure may be applied to a communication device mounted on the vehicle 2001, for example, to the communication module 2013.

[0108] The drive unit 2002 consists of, for example, an engine, a motor, or a hybrid of an engine and a motor. The steering unit 2003 includes at least a steering wheel (also called a handle) and is configured to steer at least one of the front wheels and the rear wheels based on the operation of the steering wheel, which is operated by the user.

[0109] The electronic control unit 2010 consists of a microprocessor 2031, memory (ROM, RAM) 2032, and communication ports (IO ports) 2033. Signals from various sensors 2021 to 2029 installed in the vehicle 2001 are input to the electronic control unit 2010. The electronic control unit 2010 may also be called an ECU (Electronic Control Unit).

[0110] Signals from various sensors 2021-2029 include current signals from current sensor 2021 which senses motor current, front and rear wheel rotation speed signals obtained by rotation speed sensor 2022, front and rear wheel air pressure signals obtained by air pressure sensor 2023, vehicle speed signals obtained by vehicle speed sensor 2024, acceleration signals obtained by acceleration sensor 2025, accelerator pedal depression signals obtained by accelerator pedal sensor 2029, brake pedal depression signals obtained by brake pedal sensor 2026, shift lever operation signals obtained by shift lever sensor 2027, and detection signals obtained by object detection sensor 2028 for detecting obstacles, vehicles, pedestrians, etc.

[0111] The Information Services Unit 2012 consists of various devices for providing (outputting) various types of information such as driving information, traffic information, and entertainment information, including a car navigation system, audio system, speakers, television, and radio, and one or more ECUs that control these devices. The Information Services Unit 2012 uses information acquired from external devices via a communication module 2013, etc., to provide various multimedia information and multimedia services to the occupants of the vehicle 2001. The Information Services Unit 2012 may include input devices that accept input from the outside (e.g., keyboard, mouse, microphone, switch, button, sensor, touch panel, etc.) and output devices that perform output to the outside (e.g., display, speaker, LED lamp, touch panel, etc.).

[0112] The driver assistance system unit 2030 consists of various devices that provide functions to prevent accidents or reduce the driver's workload, such as millimeter-wave radar, LiDAR (Light Detection and Ranging), cameras, positioning locators (e.g., GNSS), map information (e.g., high-definition (HD) maps, autonomous vehicle (AV) maps, etc.), gyro systems (e.g., IMU (Inertial Measurement Unit), INS (Inertial Navigation System), etc.), AI (Artificial Intelligence) chips, and AI processors, as well as one or more ECUs that control these devices. The driver assistance system unit 2030 also sends and receives various information via the communication module 2013 to realize driver assistance functions or autonomous driving functions.

[0113] The communication module 2013 can communicate with the microprocessor 2031 and components of the vehicle 2001 via its communication port. For example, the communication module 2013 sends and receives data via its communication port 2033 to the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, shift lever 2006, front wheels 2007, rear wheels 2008, axle 2009, the microprocessor 2031 and memory (ROM, RAM) 2032 in the electronic control unit 2010, and sensors 2021-29 provided in the vehicle 2001.

[0114] The communication module 2013 is a communication device that can be controlled by the microprocessor 2031 of the electronic control unit 2010 and can communicate with external devices. For example, it can send and receive various types of information to and from external devices via wireless communication. The communication module 2013 may be located either inside or outside the electronic control unit 2010. The external device may be, for example, a base station or a mobile station.

[0115] The communication module 2013 may transmit at least one of the following to an external device via wireless communication: signals from the various sensors 2021-2028 input to the electronic control unit 2010, information obtained based on said signals, and information based on input from an external source (user) obtained via the information service unit 2012. The electronic control unit 2010, the various sensors 2021-2028, the information service unit 2012, etc., may also be called input units that accept input. For example, the PUSCH transmitted by the communication module 2013 may include information based on the above input.

[0116] The communication module 2013 receives various information (traffic information, signal information, inter-vehicle information, etc.) transmitted from an external device and displays it on the information service unit 2012 provided in the vehicle 2001. The information service unit 2012 may also be called an output unit, which outputs information (for example, outputs information to devices such as displays and speakers based on the PDSCH (or data / information decoded from the PDSCH) received by the communication module 2013). The communication module 2013 also stores the various information received from the external device in memory 2032, which is available to the microprocessor 2031. Based on the information stored in memory 2032, the microprocessor 2031 may control the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, shift lever 2006, front wheels 2007, rear wheels 2008, axles 2009, sensors 2021-2029, etc., provided in the vehicle 2001.

[0117] (Supplement to the embodiment) While embodiments of the present invention have been described above, the disclosed invention is not limited to such embodiments, and those skilled in the art will understand various modifications, alterations, alternatives, substitutions, etc. Specific numerical examples have been used to facilitate understanding of the invention, but unless otherwise specified, these numerical values ​​are merely examples, and any appropriate values ​​may be used. The division of items in the above description is not essential to the present invention, and matters described in two or more items may be combined as needed, and matters described in one item may be applied to matters described in another item (as long as they do not contradict each other). The boundaries of functional units or processing units in the functional block diagram do not necessarily correspond to the boundaries of physical parts. The operation of multiple functional units may be physically performed by one part, or the operation of one functional unit may be physically performed by multiple parts. Regarding the processing procedures described in the embodiments, the order of processing may be changed as long as it does not contradict each other. For the convenience of explaining the processing, the base station 10 and terminal 20 have been described using functional block diagrams, but such devices may be implemented in hardware, software, or a combination thereof. The software operated by the processor of the base station 10 according to an embodiment of the present invention and the software operated by the processor of the terminal 20 according to an embodiment of the present invention may be stored in random access memory (RAM), flash memory, read-only memory (ROM), EPROM, EEPROM, registers, hard disk (HDD), removable disk, CD-ROM, database, server, or any other suitable storage medium.

[0118] Furthermore, the notification of information is not limited to the embodiments / models described herein and may be carried out by other methods. For example, the notification of information may be carried out by physical layer signaling (e.g., DCI (Downlink Control Information), UCI (Uplink Control Information)), upper layer signaling (e.g., RRC (Radio Resource Control) signaling, MAC (Medium Access Control) signaling), broadcast information (MIB (Master Information Block), SIB (System Information Block)), other signals, or combinations thereof. Also, RRC signaling may be called RRC messages, and may be, for example, RRC Connection Setup messages, RRC Connection Reconfiguration messages, etc.

[0119] Each aspect / embodiment described in this disclosure includes LTE (Long Term Evolution), LTE-A (LTE-Advanced), SUPER 3G, IMT-Advanced, 4G (4th generation mobile communication system), 5G (5th generation mobile communication system), 6th generation mobile communication system (6G), xth generation mobile communication system (xG) (xG (where x is, for example, an integer or decimal)), FRA (Future Radio Access), NR (new Radio), New radio access (NX), Future generation radio access (FX), W-CDMA (registered trademark), GSM (registered trademark), CDMA2000, UMB (Ultra Mobile Broadband), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), and IEEE This may apply to at least one system utilizing 802.20, UWB (Ultra-WideBand), Bluetooth®, or other appropriate systems, and to next-generation systems extended, modified, created, or defined based thereon. It may also apply to a combination of multiple systems (for example, a combination of at least one of LTE and LTE-A with 5G).

[0120] The processing procedures, sequences, flowcharts, etc., of each aspect / embodiment described herein may be reordered, provided they are consistent with each other. For example, the methods described herein present various step elements in an exemplary order and are not limited to that specific order.

[0121] In this specification, specific operations performed by the base station 10 may, in some cases, be performed by its upper node. In a network consisting of one or more network nodes having a base station 10, it is clear that various operations performed for communication with the terminal 20 can be performed by the base station 10 and at least one of the other network nodes (for example, an MME or S-GW, but not limited to these). Although the above example illustrates the case where there is one other network node besides the base station 10, the other network node may be a combination of multiple other network nodes (for example, an MME and an S-GW).

[0122] The information or signals described in this disclosure may be output from a higher layer (or lower layer) to a lower layer (or higher layer). They may also be input and output via multiple network nodes.

[0123] Input and output information may be stored in a specific location (e.g., memory) or managed using a management table. Input and output information may be overwritten, updated, or appended to. Output information may be deleted. Input information may be transmitted to other devices.

[0124] The determination in this disclosure may be made by a value represented by one bit (0 or 1), by a boolean value (true or false), or by a numerical comparison (for example, a comparison with a predetermined value).

[0125] Software should be broadly interpreted to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, functions, and so on, whether they are called software, firmware, middleware, microcode, hardware description languages, or by any other name.

[0126] Furthermore, software, instructions, information, etc., may be transmitted and received via a transmission medium. For example, if software is transmitted from a website, server, or other remote source using at least one of wired technology (such as coaxial cable, fiber optic cable, twisted pair, or digital subscriber line (DSL)) and wireless technology (such as infrared or microwave), then at least one of these wired and wireless technologies is included in the definition of a transmission medium.

[0127] The information, signals, etc. described in this disclosure may be represented using any of the various different techniques. For example, the data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description may be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, optical fields or photons, or any combination thereof.

[0128] In addition, terms used in this disclosure and terms necessary for understanding this disclosure may be replaced with terms having the same or similar meanings. For example, at least one of the channel and symbol may be a signal (signaling). Also, a signal may be a message. Furthermore, a component carrier (CC) may be called a carrier frequency, cell, frequency carrier, etc.

[0129] The terms “system” and “network” as used in this disclosure are interchangeable.

[0130] Furthermore, the information, parameters, etc., described in this disclosure may be expressed using absolute values, relative values ​​from a given value, or other corresponding information. For example, wireless resources may be indicated by an index.

[0131] The names used for the parameters described above are not restrictive in any way. Furthermore, the formulas and other expressions using these parameters may differ from those expressly disclosed in this disclosure. Various channels (e.g., PUCCH, PDCCH, etc.) and information elements can be identified by any suitable name, and therefore, the various names assigned to these various channels and information elements are not restrictive in any way.

[0132] In this disclosure, terms such as "Base Station (BS)", "wireless base station", "base station", "fixed station", "NodeB", "eNodeB (eNB)", "gNodeB (gNB)", "access point", "transmission point", "reception point", "transmission / reception point", "cell", "sector", "cell group", "carrier", and "component carrier" may be used interchangeably. Base stations may also be referred to by terms such as macrocell, small cell, femtocell, and picocell.

[0133] A base station can house one or more (e.g., three) cells. If a base station houses multiple cells, the entire coverage area of ​​the base station can be divided into several smaller areas, each of which may also be provided with communication services by a base station subsystem (e.g., a Remote Radio Head (RRH)). The terms “cell” or “sector” refer to part or all of the coverage area of ​​at least one of the base station and / or base station subsystems that provide communication services in that coverage.

[0134] In this disclosure, the transmission of information by a base station to a terminal may be interpreted as the base station instructing the terminal to perform information-based control or operation.

[0135] In this disclosure, terms such as "Mobile Station (MS)," "user terminal," "User Equipment (UE)," and "terminal" may be used interchangeably.

[0136] A mobile station may also be referred to by those skilled in the art as a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or several other appropriate terms.

[0137] At least one of the base station and the mobile station may be called a transmitting device, a receiving device, a communication device, etc. At least one of the base station and the mobile station may also be a device mounted on a mobile body, the mobile body itself, etc. The mobile body refers to a movable object, and its speed of movement is arbitrary. This also includes the case when the mobile body is stationary. The mobile body includes, but is not limited to, vehicles, transport vehicles, automobiles, motorcycles, bicycles, connected cars, excavators, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, handcarts, rickshaws, ships and other watercraft, airplanes, rockets, satellites, drones (registered trademark), multicopters, quadcopters, balloons, and items mounted on them. The mobile body may also be a mobile body that moves autonomously based on operation commands. It may be a vehicle (e.g., a car, an airplane, etc.), an unmanned mobile body (e.g., a drone, an autonomous vehicle, etc.), or a robot (manned or unmanned). Furthermore, at least one of the base station and the mobile station may include devices that do not necessarily move during communication operations. For example, at least one of the base station and the mobile station may be an IoT (Internet of Things) device such as a sensor.

[0138] Furthermore, the term "base station" in this disclosure may be interpreted as "terminal." For example, the various aspects / embodiments of this disclosure may be applied to a configuration in which communication between a base station and a terminal is replaced with communication between multiple terminals 20 (which may be called, for example, D2D (Device-to-Device), V2X (Vehicle-to-Everything)). In this case, the terminals 20 may have the functions that the base station 10 has. Also, terms such as "uplink" and "downlink" may be interpreted as terms corresponding to terminal-to-terminal communication (for example, "side"). For example, uplink channel, downlink channel, etc., may be interpreted as side channel.

[0139] Similarly, the term "terminal" in this disclosure may be replaced with "base station." In this case, the base station may be configured to have the same functions as the terminal described above.

[0140] As used in this disclosure, the terms “determining” and “determining” may encompass a wide variety of actions. “Determining” may include, for example, judging, calculating, computing, processing, deriving, investigating, looking up, searching, inquiry (e.g., searching in a table, database, or other data structure), and ascertaining. “Determining” may also include, for example, receiving (e.g., receiving information), transmitting (e.g., sending information), input, output, and accessing (e.g., accessing data in memory). Furthermore, "judgment" and "decision" can include considering something as having been "judged" or "decided" after resolving, selecting, choosing, establishing, comparing, etc. In other words, "judgment" and "decision" can include considering something as having been "judged" or "decided" after some action. Also, "judgment (decision)" can be reinterpreted as "assuming," "expecting," or "considering."

[0141] The terms “connected,” “coupled,” or any variation thereof, mean any direct or indirect connection or coupling between two or more elements, and may include the presence of one or more intermediate elements between two elements that are “connected” or “coupled” with each other. The coupling or connection between elements may be physical, logical, or a combination thereof. For example, “connection” may be reinterpreted as “access.” As used in this disclosure, two elements may be considered to be “connected” or “coupled” with each other using at least one of one or more wires, cables, and printed electrical connections, and, in some non-limiting and non-exclusive examples, electromagnetic energy having wavelengths in the radio frequency domain, microwave domain, and optical (both visible and invisible) domain.

[0142] The reference signal can also be abbreviated as RS (Reference Signal), and may be called a pilot depending on the applicable standard.

[0143] In this disclosure, the phrase "based on" does not mean "based solely on" unless otherwise specified. In other words, the phrase "based on" means both "based solely on" and "based at least on."

[0144] Any reference to elements using the designations “first,” “second,” etc., as used in this disclosure does not generally limit the quantity or order of those elements. These designations may be used in this disclosure as a convenient way to distinguish between two or more elements. Accordingly, references to the first and second elements do not imply that only two elements may be employed, or that the first element must precede the second element in any way.

[0145] In the configuration of each of the above devices, "means" may be replaced with "part," "circuit," "device," etc.

[0146] Where the terms “include,” “including,” and variations thereof are used in this disclosure, these terms are intended to be inclusive, as is the term “comprising.” Furthermore, the term “or” as used in this disclosure is not intended to mean exclusive OR.

[0147] A wireless frame may consist of one or more frames in the time domain. Each of these frames in the time domain may be called a subframe. A subframe may further consist of one or more slots in the time domain. A subframe may have a fixed time length (e.g., 1 ms) that is independent of numerology.

[0148] Numerical logic may be communication parameters applied to at least one of the transmission and reception of a signal or channel. Numerical logic may include, for example, at least one of the following: subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, radio frame configuration, specific filtering processes performed by the transceiver in the frequency domain, and specific windowing processes performed by the transceiver in the time domain.

[0149] A slot may consist of one or more symbols in the time domain (such as OFDM (Orthogonal Frequency Division Multiplexing) symbols, SC-FDMA (Single Carrier Frequency Division Multiple Access) symbols, etc.). A slot may also be a time unit based on neurology.

[0150] A slot may include multiple minislots. Each minislot may consist of one or more symbols in the time domain. Minislots may also be called subslots. Minislots may consist of fewer symbols than a slot. A PDSCH (or PUSCH) transmitted in a time unit larger than a minislot may be called PDSCH (or PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using a minislot may be called PDSCH (or PUSCH) mapping type B.

[0151] Wireless frames, subframes, slots, minislots, and symbols all represent units of time when transmitting a signal. Different names may be used for each of these terms.

[0152] For example, one subframe may be called a Transmission Time Interval (TTI), multiple consecutive subframes may be called a TTI, or one slot or one mini-slot may be called a TTI. In other words, at least one of a subframe and a TTI may be a subframe (1 ms) in existing LTE, a period shorter than 1 ms (e.g., 1-13 symbols), or a period longer than 1 ms. Note that the unit representing the TTI may be called a slot, mini-slot, etc., instead of a subframe. Also, one slot may be called a unit time. The unit time may differ from cell to cell depending on the neurology.

[0153] Here, TTI refers to, for example, the smallest unit of time for scheduling in wireless communication. For example, in an LTE system, the base station schedules each terminal 20 to allocate wireless resources (such as the frequency bandwidth and transmission power available to each terminal 20) in TTI units. However, the definition of TTI is not limited to this.

[0154] TTI may be a transmission time unit for channel-encoded data packets (transport blocks), code blocks, code words, etc., or it may be a processing unit for scheduling, link adaptation, etc. Given a TTI, the actual time interval (e.g., number of symbols) to which the transport block, code block, code word, etc. are mapped may be shorter than the given TTI.

[0155] Furthermore, if one slot or one mini-slot is referred to as TTI, then one or more TTIs (i.e., one or more slots or one or more mini-slots) may constitute the minimum time unit of scheduling. In addition, the number of slots (number of mini-slots) that constitute the minimum time unit of scheduling may be controlled.

[0156] A TTI with a time length of 1ms may also be called a normal TTI, long TTI, normal subframe, long subframe, slot, etc. A TTI shorter than a normal TTI may also be called a shortened TTI, short TTI, partial or fractional TTI, shortened subframe, short subframe, mini slot, sub slot, slot, etc.

[0157] Furthermore, long TTIs (e.g., normal TTIs, subframes, etc.) may be interpreted as TTIs with a time length exceeding 1 ms, and short TTIs (e.g., shortened TTIs, etc.) may be interpreted as TTIs with a TTI length less than that of a long TTI but 1 ms or more.

[0158] A resource block (RB) is a resource allocation unit in the time domain and frequency domain, and in the frequency domain, it may contain one or more consecutive subcarriers. The number of subcarriers in an RB may be the same regardless of the neurology, for example, 12. The number of subcarriers in an RB may be determined based on the neurology.

[0159] Furthermore, the time domain of RB may contain one or more symbols and may be the length of one slot, one minislot, one subframe, or one TTI. One TTI, one subframe, etc., may each consist of one or more resource blocks.

[0160] One or more RBs may also be called a Physical RB (PRB), Sub-Carrier Group (SCG), Resource Element Group (REG), PRB pair, RB pair, etc.

[0161] Furthermore, a resource block may consist of one or more resource elements (REs). For example, one RE may be a radio resource area comprising one subcarrier and one symbol.

[0162] A Bandwidth Part (BWP), also known as a partial bandwidth, may represent a subset of consecutive common resource blocks (RBs) for a particular neurology system in a given carrier. These common RBs may be identified by an index of the RBs relative to a common reference point of the carrier. A Bandwidth Part (PRB) may be defined and numbered within a given BWP.

[0163] A BWP may include BWPs for UL (UL BWP) and BWPs for DL ​​(DL BWP). One or more BWPs may be configured within a single carrier for a UE.

[0164] At least one of the configured BWPs may be active, and the UE does not need to assume that it will send or receive a given signal / channel outside of the active BWP. In this disclosure, terms such as "cell" and "carrier" may be read as "BWP".

[0165] The structures described above, such as wireless frames, subframes, slots, minislots, and symbols, are merely illustrative. For example, the number of subframes included in a wireless frame, the number of slots per subframe or wireless frame, the number of minislots included in a slot, the number of symbols and RBs included in a slot or minislot, the number of subcarriers included in an RB, and the number of symbols, symbol length, and cyclic prefix (CP) length within a TTI can be varied in various ways.

[0166] In this disclosure, if articles are added through translation, such as a, an, and the in English, this disclosure may include the fact that the noun following these articles is plural.

[0167] In this disclosure, the term "A and B are different" may mean "A and B are different from each other." The term may also mean "A and B are each different from C." Terms such as "separate" and "combine" may be interpreted similarly to "different."

[0168] Each aspect / embodiment described herein may be used individually, in combination, or switched between as needed during implementation. Furthermore, notification of specific information (e.g., notification that "X is") is not limited to explicit notification, but may also be implicit (e.g., by not providing such notification).

[0169] Although the present disclosure has been described in detail above, it will be clear to those skilled in the art that the present disclosure is not limited to the embodiments described herein. The present disclosure can be implemented in modified and altered forms without departing from the intent and scope of the present disclosure as defined by the claims. Therefore, the descriptions in the present disclosure are illustrative and not intended to be restrictive in any way. [Explanation of symbols]

[0170] 10 base station 110 Transmitter 120 Receiver 130 Setting section 140 Control Unit 20 devices 210 Transmitter 220 Receiver 230 Setting section 240 Control Unit 1001 Processor 1002 Storage device 1003 Auxiliary storage device 1004 Communication device 1005 Input device 1006 Output device 2001 Vehicle 2002 Drive Unit 2003 Steering Department 2004 Accelerator pedal 2005 Brake pedal 2006 Shift Lever 2007 Front Wheel 2008 Rear wheel 2009 Axle 2010 Electronic Control Unit 2012 Information Services Department 2013 Communication Module 2021 Current Sensor 2022 Rotation speed sensor 2023 Pneumatic Sensor 2024 Vehicle Speed ​​Sensor 2025 Accelerometer 2026 Brake Pedal Sensor 2027 Shift lever sensor 2028 Object Detection Sensor 2029 Accelerator pedal sensor 2030 Driver Support Systems Department 2031 Microprocessor 2032 memory (ROM, RAM) 2033 Communication port (I / O port)

Claims

1. A receiving unit that receives setting information for a reference signal transmitted by multiple carriers from a base station, A terminal comprising a control unit that assumes that the timing of phase measurement for positioning differs among the multiple carriers due to a transmission timing error on the transmitting side, The receiving unit performs phase measurements using the reference signal at different timings for the multiple carriers, based on the phase measurement timing offset that compensates for the transmission timing error. Terminal.

2. The receiving unit performs phase measurements on the multiple carriers at different timings using the reference signal, based on the defined phase measurement timing offset or the phase measurement timing offset notified by the base station. The terminal according to claim 1.

3. A transmitting unit transmits capability information to the base station indicating that it has the ability to perform phase measurements at different timings among the multiple carriers. The terminal according to claim 1, further comprising:

4. A transmitting unit that transmits setting information for a reference signal transmitted by multiple carriers to the terminal, A control unit adjusts the transmission timing based on a phase measurement timing offset that compensates for transmission timing errors so that the timing of reference signal transmission is synchronized among the multiple carriers. A base station equipped with the necessary equipment.

5. A receiving unit that receives the phase measurement timing offset used to adjust the transmission timing from the network device. The base station according to claim 4, further comprising:

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