Terminal and communication method

Abstract

This terminal comprises: a control unit that, when a timing at which a signal is received or transmitted overlaps with a period associated with measurement using a measurement signal, determines whether to receive or transmit the signal or to perform the measurement using the measurement signal; and a communication unit that receives or transmits, in accordance with the determination, the signal at the timing.

Description

Terminal and communication method

[0001] The present disclosure relates to a terminal and a communication method.

[0002] The 3rd Generation Partnership Project (3GPP (registered trademark)) is specifying the 5th generation mobile communication system (5G, also known as New Radio (NR) or Next Generation (NG)), and is also specifying the next generation, called Beyond 5G, 5G Evolution, or 6G.

[0003] For 5G, technologies that satisfy the requirements such as a large-capacity system, high-speed data transmission speed, low latency, simultaneous connection of a large number of terminals, low cost, and power saving are being considered (for example, Non-Patent Document 1).

[0004] The expansion of mobile communication systems as described above is expected to lead to the use and spread of extended reality (XR), such as virtual reality (VR), augmented reality (AR), and mixed reality (MR), which enable the combination of the real world and the virtual world (virtual content). 3GPP is currently discussing XR expansion in preparation for Release 19 (see, for example, Non-Patent Document 2).

[0005] In the context of XR extensions, for example, extensions regarding Measurement Gap (MG) and scheduling restrictions have been widely discussed.

[0006] For example, it may be within the scope of future standards to specify extensions to the scheduling restrictions for inter-frequency RRM measurements in FR1 and FR2 with measurement gaps and intra-frequency RRM measurements in FR2 without measurement gaps to reduce the impact on capacity and on individual terminals.

[0007] 3GPP TS 38.300 V17.6.0 (2023-09)“Moderator's summary for REL-19 RAN2 topic Enhancements for XR”, RP-232619, 3GPP TSG-RAN Meeting #101, 3GPP, September 2023

[0008] In current wireless communication systems, measurements using synchronization signal blocks (SSBs) (SSB-based measurements) are used.

[0009] For SSB measurements, a measurement timing configuration (SMTC: SSB-based Measurement Timing Configuration) is notified to a terminal, and the terminal performs measurements based on the signal to be measured in the configured SMTC window. Also, for SSB measurements, a measurement gap configuration can be notified to the terminal for switching the used frequency (RF: Radio Frequency), etc.

[0010] Due to the periodicity of XR traffic, if the SMTC window or measurement gap overlaps with the transmission and reception of signals related to XR traffic, the signals cannot be scheduled, which can lead to problems due to scheduling restrictions associated with measurements, such as capacity loss.

[0011] In addition, in current wireless communication systems, other measurements such as measurements using a Channel State Information Reference Signal (CSI-RS) (CSI-RS-based measurement) are also used, and the above-mentioned problems may also occur in various measurements. Furthermore, the above-mentioned problems may also occur in transmission and reception of signals other than signals related to XR traffic.

[0012] One aspect of the present disclosure provides a terminal and a communication method that can reduce the impact caused by scheduling restrictions on measurements.

[0013] A terminal according to one aspect of the present disclosure includes a control unit that determines whether to receive or transmit a signal or perform measurement using a measurement signal when the timing of receiving or transmitting the signal overlaps with a period associated with measurement using the measurement signal, and a communication unit that receives or transmits the signal at the timing in accordance with the determination.

[0014] 1 is a diagram illustrating an example of a wireless communication system according to an embodiment of the present disclosure. 2 is a diagram illustrating an example of a frequency range used in the wireless communication system according to an embodiment of the present disclosure. 3 is a diagram illustrating an example of the configuration of radio frames, subframes, and slots used in the wireless communication system according to an embodiment of the present disclosure. 4 is a diagram illustrating an example of prioritizing channel / signal transmission / reception over RRM measurement based on predefined conditions according to an embodiment of the present disclosure. 5 is a diagram illustrating an example of prioritizing channel / signal transmission / reception over RRM measurement based on a priority state value according to an embodiment of the present disclosure. 6 is a diagram illustrating an example of prioritizing RRM measurement over channel / signal transmission / reception based on a priority state value according to an embodiment of the present disclosure. 7 is a diagram illustrating an example of notification of skipping of measurement gap opportunities from a base station according to an embodiment of the present disclosure. 8 is a diagram illustrating an example of notification of skipping of measurement gap opportunities from a base station according to an embodiment of the present disclosure. 9 is a diagram illustrating an example of notification of skipping of measurement gap opportunities from a base station according to an embodiment of the present disclosure. 10 is a diagram illustrating an example of notification of skipping of measurement gap opportunities from a base station according to an embodiment of the present disclosure. 11 is a diagram illustrating an example of notification of skipping of measurement gap opportunities from a base station according to an embodiment of the present disclosure. 12 is a diagram illustrating an example of notification of skipping of measurement gap opportunities from a base station according to an embodiment of the present disclosure. 13 is a diagram illustrating an example of a request for skipping of a measurement gap from a terminal according to an embodiment of the present disclosure. FIG. 1 illustrates an example of a request to skip a measurement gap from a terminal according to an embodiment of the present disclosure. FIG. 2 illustrates an example of a request to skip a measurement gap from a terminal according to an embodiment of the present disclosure. FIG. 3 illustrates an example of a notification of skipping a measurement gap from a terminal according to an embodiment of the present disclosure. FIG. 4 illustrates an example of a request to skip an RRM measurement from a terminal according to an embodiment of the present disclosure. FIG. 5 illustrates an example of a request to skip an RRM measurement from a terminal according to an embodiment of the present disclosure. FIG. 6 illustrates an example of a request to skip an RRM measurement from a terminal according to an embodiment of the present disclosure. FIG. 7 illustrates an example of a notification of skipping an RRM measurement from a terminal according to an embodiment of the present disclosure. FIG. 8 illustrates an example of an operation of a terminal according to an embodiment of the present disclosure. FIG. 9 illustrates an example of an operation of a terminal according to an embodiment of the present disclosure. FIG. 10 illustrates an example of an operation of a terminal according to an embodiment of the present disclosure.1 is a diagram illustrating an example of the operation of a terminal according to an embodiment of the present disclosure; FIG. 2 is a block diagram illustrating an example of the configuration of a base station according to an embodiment of the present disclosure; FIG. 3 is a block diagram illustrating an example of the configuration of a terminal according to an embodiment of the present disclosure; FIG. 4 is a diagram illustrating an example of the hardware configuration of a base station and a terminal according to an embodiment of the present disclosure; and FIG. 5 is a diagram illustrating an example of the configuration of a vehicle according to an embodiment of the present disclosure.

[0015] Hereinafter, an embodiment according to one aspect of the present disclosure will be described with reference to the drawings.

[0016] 1 is a diagram illustrating an example of a wireless communication system 10 according to an embodiment of the present disclosure. The wireless communication system 10 is a wireless communication system conforming to 5G NR, and includes a Next Generation-Radio Access Network 20 (hereinafter, NG-RAN 20) and a terminal 200 (hereinafter, also referred to as UE (User Equipment) 200).

[0017] The wireless communication system 10 may be a wireless communication system conforming to a system called Beyond 5G, 5G Evolution, or 6G.

[0018] The NG-RAN 20 includes a base station 100A (hereinafter also referred to as gNB 100A) and a base station 100B (hereinafter also referred to as gNB 100B). When there is no need to distinguish between the gNB 100A, the gNB 100B, etc., they are collectively referred to as gNB or base station 100. Furthermore, the number of gNBs and UEs is not limited to the example shown in FIG. 1.

[0019] The NG-RAN 20 actually includes multiple NG-RAN nodes, specifically, gNBs (or ng-eNBs), and is connected to a 5G-compliant core network (5GC, not shown). The NG-RAN 20 and 5GC may simply be referred to as "networks." In the following, the term "gNB" may be replaced with "network (NW)."

[0020] As an example, the gNB 100A and the gNB 100B are base stations conforming to 5G, and perform 5G wireless communication with the UE 200. The gNB 100A, the gNB 100B, and the UE 200 may support MIMO (Multiple-Input Multiple-Output), which generates a more directional beam BM by controlling radio signals transmitted from multiple antenna elements, carrier aggregation (CA), which uses a bundle of multiple component carriers (CC), and dual connectivity (DC), which performs communication between the UE and each of two NG-RAN nodes.

[0021] The wireless communication system 10 may also support multiple frequency ranges (FR). Fig. 2 is a diagram showing an example of FRs used in the wireless communication system 10. As shown in Fig. 2, the wireless communication system 10 may support FR1 and FR2. The frequency bands of each FR are, for example, as follows: FR1: 410 MHz to 7.125 GHz FR2: 24.25 GHz to 52.6 GHz

[0022] FR1 may use a sub-carrier spacing (SCS) of 15 kHz, 30 kHz, or 60 kHz, and a bandwidth (BW) of 5 to 100 MHz. FR2 is a higher frequency than FR1, and may use an SCS of 60 kHz or 120 kHz (including 240 kHz), and a bandwidth (BW) of 50 to 400 MHz.

[0023] Note that SCS may be interpreted as numerology, which is defined in 3GPP TS 38.300 and corresponds to one subcarrier spacing in the frequency domain.

[0024] Furthermore, the wireless communication system 10 may support a frequency band higher than the FR2 frequency band. Specifically, the wireless communication system 10 may support a frequency band exceeding 52.6 GHz up to 114.25 GHz. For convenience, such a high frequency band may be referred to as "FR2x." When using a frequency band exceeding 52.6 GHz, CP-OFDM (Cyclic Prefix-Orthogonal Frequency Division Multiplexing) / DFT-S-OFDM (Discrete Fourier Transform-Spread-Orthogonal Frequency Division Multiplexing) with a larger SCS may be applied.

[0025] 3 is a diagram showing an example of the configuration of a radio frame (system frame), subframe, and slot used in the radio communication system 10. As shown in FIG. 3, one slot is composed of 14 symbols, and the larger (wider) the SCS, the shorter the symbol period (and slot period). However, the SCS is not limited to the interval (frequency) shown in FIG. 3. For example, 480 kHz, 960 kHz, etc. may be used as the SCS.

[0026] Furthermore, the number of symbols constituting one slot does not necessarily have to be 14 (for example, it may be 28 or 56 symbols, etc.) Furthermore, the number of slots per subframe may differ depending on the SCS.

[0027] 3 may be called a time domain, a symbol period, a symbol time, etc. The frequency direction may be called a frequency domain, a resource block, a subcarrier, a bandwidth part (BWP), etc.

[0028] The gNB100 transmits control information, setting information, etc. to the UE200 as a downlink (DL) signal.

[0029] Furthermore, for example, gNB100 receives control information, data signals, information regarding the processing capabilities of UE200 (terminal capabilities (information); for example, UE capability), etc. from UE200 as uplink (UL) signals.

[0030] Channels used for transmitting DL signals include, for example, data channels and control channels. For example, the data channel may include a physical downlink shared channel (PDSCH), and the control channel may include a physical downlink control channel (PDCCH). For example, the gNB 100 transmits control information to the UE 200 using the PDCCH, and transmits DL data signals using the PDSCH. Note that the PDSCH is an example of a downlink shared channel, and the PDCCH is an example of a downlink control channel. Note that the PDCCH may be interpreted as downlink control information (DCI), control information, etc. transmitted in the PDCCH.

[0031] The reference signal included in the DL signal may include, for example, at least one of a DMRS (Demodulation Reference Signal), a PTRS (Phase Tracking Reference Signal), a CSI-RS (Channel State Information - Reference Signal), an SRS (Sounding Reference Signal), and a PRS (Positioning Reference Signal) for position information. For example, reference signals such as the DMRS and PTRS are used to demodulate the DL data signal and are transmitted using the PDSCH.

[0032] The UE 200 is a communication device equipped with a wireless communication function, such as a smartphone, a mobile phone, a tablet, a wearable terminal, or an M2M (Machine-to-Machine) communication module.

[0033] UE200 receives control signals or data signals from gNB100 in DL and transmits control signals or data signals to gNB100 in UL, thereby utilizing various communication services provided by wireless communication system 10. UE200 also receives various reference signals transmitted from gNB100 and performs measurement of propagation path quality based on the reception results of the reference signals.

[0034] For example, UE200 receives control information, configuration information, etc. from gNB100 as a DL signal.

[0035] Also, for example, UE200 transmits control information, data signals, terminal capability information of UE200, etc. to gNB100 as UL signals.

[0036] Channels used for transmitting UL signals include, for example, data channels and control channels. For example, the data channel may include a Physical Uplink Shared Channel (PUSCH), and the control channel may include a Physical Uplink Control Channel (PUCCH). For example, the UE 200 transmits control information using the PUCCH and transmits UL data signals using the PUSCH. Note that the PUSCH is an example of an uplink shared channel, and the PUCCH is an example of an uplink control channel. Note that the PUSCH or the PUCCH may be interpreted as uplink control information (UCI), control information, etc. transmitted in the PUSCH or the PUCCH.

[0037] The reference signal included in the UL signal may include, for example, at least one of a DMRS, a PTRS, a CSI-RS, an SRSRS, and a PRS for location information. For example, the reference signal such as the DMRS or the PTRS is used for demodulating the UL data signal and is transmitted using the PUSCH.

[0038] <Current status of discussions on XR> XR presents attractive use cases for future wireless communication systems. However, XR also poses challenges that need to be considered and addressed. For example, in 3GPP, XR extensions are being discussed for Release 19 (see, for example, Non-Patent Document 2), and extensions related to measurement gaps and scheduling restrictions are being widely discussed.

[0039] <About SSB and SSB Measurement> Some signals and / or channels transmitted from a base station to a terminal are periodically transmitted. Examples of such signals and / or channels include synchronization signal blocks (SSBs).

[0040] The SSB is used by a terminal to measure, for example, received power (e.g., SS-RSRP (Synchronization Signal Reference Signal Received Power)) and received quality (e.g., SS-RSRQ (Synchronization Signal Reference Signal Received Quality)) (SSB measurement). This measurement is an example of RRM (Radio Resource Management) measurement.

[0041] For SSB measurements, a measurement timing configuration (SMTC) is notified to the terminal. The SMTC may include the length, period, timing offset, etc. of the SSB measurement period (which may also be called an SMTC window, measurement timing, etc.). The terminal performs measurements based on the signal to be measured within the configured SMTC window.

[0042] Furthermore, for SSB measurements, a measurement gap setting may be notified to the terminal due to switching of the used frequency (RF: Radio Frequency). A measurement gap is an extended period for measurements in which an additional period may be added before and after the SMTC window. The measurement gap setting may also include a length, a period, etc.

[0043] Examples of RRM measurements also include measurements based on CSI-RS (CSI-RS measurements).

[0044] In NR, the following RRM measurements are used, including SSB measurements and CSI-RS measurements, with or without measurement gaps: (1) Intra-frequency measurements (2) Inter-frequency measurements (3) Inter-frequency measurements (4)

[0045] The terminal can perform the above-mentioned RRM measurements and transmit / receive signals using at least one frequency band (carrier frequency) of the first frequency band (FR1) and the second frequency band (FR2).

[0046] <Scheduling Restrictions for RRM Measurements> Scheduling restrictions (terminal operation restrictions) for intra-frequency SSB measurements without measurement gaps, with NCSG (Network Configured Small Gap), and with measurement gaps are described in the current standard in the following sections: Intra-frequency SSB measurements without measurement gaps: TS 38.133 clause 9.2.5.3 (In short, scheduling restrictions are imposed on SSB symbols measured within an SMTC window or on all symbols within an SMTC window, if the conditions are met.) Intra-frequency SSB measurements with NCSG: TS 38.133 clause 9.2.5.3 Intra-frequency SSB measurements with measurement gaps: TS 38.133 clause 9.1.2

[0047] Regarding inter-frequency SSB measurements, the scheduling restrictions (terminal operation restrictions) for inter-frequency SSB measurements without measurement gaps, inter-frequency SSB measurements with NCSG, and inter-frequency SSB measurements with measurement gaps are described in the following sections of the current standard. Inter-frequency SSB measurements without measurement gaps: TS 38.133 clause 9.3.5.3 (briefly, scheduling restrictions are imposed on the SSB symbols measured within the SMTC window or on all symbols within the SMTC window, if the condition is met). Inter-frequency SSB measurements with NCSG: TS 38.133 clause 9.2.10.3 (briefly, scheduling restrictions are imposed on the union of SSB symbols measured within the SMTC window for all Measurement Occasions (MOs) or on the union of all symbols within the SMTC window for all MOs, if the condition is met). Inter-frequency SSB measurements with measurement gaps: TS 38.133 clause 9.1.2

[0048] Regarding intra-frequency CSI-RS measurements, the scheduling restrictions (terminal operation restrictions) for intra-frequency CSI-RS measurements without measurement gaps are described in the current standard in the following section: Intra-frequency CSI-RS measurements without measurement gaps: TS 38.133 clause 9.10.2.6 (in brief, scheduling restrictions are imposed on configured CSI-RS symbols if the conditions are met).

[0049] Regarding inter-frequency CSI-RS measurements, the scheduling restrictions (terminal operation restrictions) for inter-frequency CSI-RS measurements with measurement gaps are described in the following section of the current standard: Inter-frequency CSI-RS measurements with measurement gaps: TS 38.133 clause 9.1.2

[0050] Due to the periodicity of XR traffic, if the SMTC window or measurement gap overlaps with the transmission and reception of signals related to XR traffic, the signals cannot be scheduled, which can lead to problems due to scheduling restrictions associated with measurements, such as capacity loss.

[0051] Incidentally, the terminal may also perform measurements for radio link monitoring, measurements for L1-RSRP, measurements for beam obstruction detection, and the like.

[0052] The above-mentioned problems may occur in CSI-RS measurements and various other measurements including these measurements. The above-mentioned problems may also occur in transmission and reception of signals other than signals related to XR traffic.

[0053] Currently, extensions to scheduling constraints are being considered, but specific operations related to control to realize such extensions have not been fully considered.

[0054] Therefore, the following describes a proposal for reducing the influence caused by the scheduling restrictions on measurements (a proposal for relaxing the scheduling restrictions on measurements).

[0055] More specifically, this proposal includes the following Proposal 1 to Proposal 5. Proposal 1: Support for a terminal to prioritize channel / signal transmission / reception over RRM measurements based on one or more certain conditions Proposal 2: Support for a base station to notify to skip or disable measurement gaps Proposal 3: Support for a terminal to report a request / notify to skip or disable measurement gaps Proposal 4: Support for periodic / semi-persistent / non-periodic measurement gaps Proposal 5: Support for a base station to notify to skip or disable RRM measurements Proposal 6: Support for a terminal to report a request / notify to skip or disable RRM measurements

[0056] In the following, Proposals 1 to 3 are described assuming that the measurement gap is periodic. For example, the measurement gap (configuration) may be configured by an existing measurement gap configuration information element (e.g., MeasGapConfig IE), which is an RRC parameter, or a (new) information element similar to the existing information element. The period of the measurement gap may be configured in such an information element.

[0057] Proposal 1, Proposal 5, and Proposal 6 may be applicable to any measurements (e.g., RRM measurements), including intra-frequency SSB and / or CSI-RS measurements and / or inter-frequency SSB and / or CSI-RS measurements with and / or without measurement gaps, whereas Proposal 2, Proposal 3, and Proposal 4 are only applicable to intra-frequency SSB and / or CSI-RS measurements and / or inter-frequency SSB and / or CSI-RS measurements with measurement gaps.

[0058] The items explained in Proposals 1 to 6 may be combined as appropriate as long as no contradictions arise.

[0059] In this application, the notation " / " may mean "and / or" unless otherwise specified.

[0060] In addition, in this application, the expression "not receiving / transmitting" may be interpreted as "not assuming reception / transmission," "reception / transmission is disabled," "not performing reception / transmission," "restricting reception / transmission," "assuming reception / transmission is not possible," etc.

[0061] Furthermore, in this application, the expression "deactivate" may be interpreted as "disable", "turn off", "put into an inactive (or disabled) state (disabled state, off state)", etc., and "enable" may be interpreted as "enable", "turn on", "put into an active (or disabled) state (disabled state, off state)", etc.

[0062] In addition, in this application, the expression "notification" may be read as the expression "instruction."

[0063] In addition, in this application, signals such as SSB and CSI-RS used to measure received power, received quality, etc. may be referred to as measurement signals, measurement signals, etc.

[0064] In addition, in this application, "skipping or disabling" may be interpreted as "not performing measurements (e.g., RRM measurements) on" or "assuming that scheduling restrictions do not apply on" (do not assume that scheduling restrictions apply), etc.

[0065] <Proposal 1> The following describes support for a terminal to prioritize channel / signal transmission / reception over RRM measurements based on one or more conditions (Proposal 1). The process related to prioritizing channel / signal transmission / reception over RRM measurements and / or prioritizing either RRM measurements or channel / signal transmission / reception may be referred to as priority processing, etc.

[0066] One or more conditions for prioritizing transmission / reception of channels / signals over RRM measurements may be according to option 1 / 2 below.

[0067] [Option 1] One or more conditions may be predefined conditions. For example, a predefined rule as a predefined condition may define when and what signal / channel (transmission / reception) may take precedence over RRM measurement (with / without measurement gap). Such a condition / rule may be predefined in a standard. In option 1, terminal 200 may determine whether to receive / transmit DL / UL channels / signals or perform RRM measurement (e.g., in a measurement gap / SMTC window) based on the predefined condition.

[0068] As an example of option 1, if there is a DL / UL channel / signal received / transmitted on one or more CCs, and the DL / UL channel / signal overlaps with a measurement gap, or overlaps with an SMTC window (within which an SSB symbol is measured), or overlaps with a CSI-RS symbol measured for RRM measurement, and one or more of the following conditions A1 to A9 are satisfied, then terminal 200 receives / transmits the DL / UL channel / signal and does not perform RRM measurement (e.g., in the measurement gap / SMTC window). Condition A1: The DL / UL channel / signal is a specific channel / signal type (e.g., PDCCH / PDSCH / CSI-RS / PUCCH / PUSCH / SRS (Sounding Reference Signal) etc.). Condition A2: The DL / UL channel / signal is scheduled / triggered by DCI (or activated by DCI or configured by RRC) or scheduled / triggered by a specific DCI format. Condition A3: The DL / UL channel / signal has a low physical layer priority value ("0") / high physical layer priority value ("1") (introduced in Release 16). Condition A4: The DL / UL channel / signal is aperiodic / semi-persistent / periodic. Condition A5: The DL / UL channel / signal is for a specific service type (e.g., for XR / URLLC / eMBB, etc.). Condition A6: Communication is performed in a specific scenario (e.g., in TN / NTN / FR1 / FR2 / licensed band / unlicensed band / FDD / TDD, etc.). Condition A7: The RRM measurement involves a measurement gap or does not involve a measurement gap. Condition A8: The RRM measurement or measurement gap is for intra-frequency measurement or for inter-frequency measurement. Condition A9: The RRM measurement is based on SSB measurement or CSI-RS measurement.

[0069] Conversely, in other cases, terminal 200 performs RRM measurements (eg, in measurement gaps / SMTC windows) and does not receive / transmit DL / UL channels / signals.

[0070] 4 shows an example in which condition A5 of conditions A1 to A9 is satisfied. As shown in FIG. 4, when the PDSCH scheduled by the DCI is for URLLC / XR (URLLC / XR PDSCH) and condition A5 is specifically "the DL / UL channel / signal is for URLLC / XR," terminal 200 receives the URLLC / XR PDSCH and does not measure the SSB in the measurement gap / SMTC window.

[0071] [Variations of the Example of Option 1] The one or more CCs (or carriers) described above may be defined by a standard (e.g., Pcell (primary cell) / Pscell (primary secondary cell) / Scell ​​(secondary cell)), may be configured by RRC (e.g., a list of CCs may be configured, or priority handling may be enabled / disabled for each CC), or may be one or more CCs in a specific frequency range (e.g., FR1 / FR2).

[0072] [Option 2] One or more conditions may be based on a priority state value or a priority value. A priority state value or a priority value (hereinafter simply referred to as a priority state value) may be referred to as information or a value indicating a priority or a priority order, etc. In option 2, terminal 200 may determine whether to prioritize transmission / reception of DL / UL channels / signals or RRM measurements (e.g., in a measurement gap / SMTC window) based on the priority state values ​​of DL / UL channels / signals and / or RRM measurements (and / or measurement gaps).

[0073] As an example (Example 1) of Option 2, terminal 200 may determine whether to prioritize transmission / reception of DL / UL channels / signals or priority of RRM measurement based on priority state values ​​of DL / UL channels / signals and measurement gaps. More specifically, if there are DL / UL channels / signals received / transmitted on one or more CCs, the DL / UL channels / signals overlap with the measurement gap, and the priority state value of the DL / UL channels / signals is greater (or smaller) than the priority state value of the measurement gap, terminal 200 receives / transmits the DL / UL channels / signals and does not perform RRM measurement in the measurement gap; otherwise, terminal 200 performs or needs to perform RRM measurement in the measurement gap and does not receive / transmit DL / UL channels / signals.

[0074] As another example (Example 2) of Option 2, terminal 200 may determine whether to prioritize transmission / reception of DL / UL channels / signals or prioritize RRM measurement based on priority state values ​​of DL / UL channels / signals and RRM measurement. More specifically, if there are DL / UL channels / signals received / transmitted on one or more CCs, and the DL / UL channels / signals overlap with (SSB symbols measured within) the SMTC window or overlap with CSI-RS symbols measured for RRM measurement, and the priority state value of the DL / UL channels / signals is greater (or smaller) than the priority state value of the RRM measurement, terminal 200 receives / transmits the DL / UL channels / signals and does not perform RRM measurement; otherwise, terminal 200 performs or needs to perform RRM measurement and does not receive / transmit the DL / UL channels / signals.

[0075] 5 shows an example of determining whether to prioritize transmission / reception of DL / UL channels / signals or RRM measurement based on the priority state values ​​of DL / UL channels / signals and RRM measurement. As shown in FIG. 5, when the URLLC / XR PDSCH scheduled by the DCI has a priority state value of "0" (high priority state value) and the RRM measurement has a priority state value of "1" (low priority state value), terminal 200 receives the URLLC / XR PDSCH and does not measure the SSB in the measurement gap / SMTC window.

[0076] 6 shows another example of determining whether to prioritize transmission / reception of DL / UL channels / signals or RRM measurement based on the priority state values ​​of DL / UL channels / signals and RRM measurement. As shown in FIG. 6, when the URLLC / XR PDSCH scheduled by the DCI has a priority state value of "1" (low priority state value) and the RRM measurement has a priority state value of "0" (high priority state value), terminal 200 does not receive the URLLC / XR PDSCH and measures the SSB in the measurement gap / SMTC window.

[0077] Note that the priority status values ​​of DL / UL channels / signals and / or RRM measurements and / or measurement gaps may be determined by definition in the standard (e.g., priority status value X for a certain channel / signal), and / or may be determined by notification by base station 100 (e.g., RRC configuration / DCI notification / MAC CE notification), and / or may be determined by the capability (UE capability) of terminal 200. When the priority status values ​​are determined by definition in the standard, different priority status values ​​may be defined for different conditions such as conditions A1 / A2 / A3 / A4 / A5 proposed in the example of Option 1 above. For example, a priority status value may be defined for each condition.

[0078] [Variations of the Example of Option 2] For each of the above examples (Example 1 and Example 2), the one or more CCs (or carriers) may be defined by a standard (e.g., Pcell / Pscell / Scell), configured by RRC (e.g., a list of CCs may be configured, or priority handling may be enabled / disabled per CC), or may be one or more CCs in a specific frequency range (e.g., FR1 / FR2).

[0079] [Variation of Proposal 1] Whether priority processing is enabled may be defined by a standard (e.g., always enabled (in an enabled state)), may be set by RRC, or may be determined based on the capabilities of terminal 200.

[0080] Proposal 1 may be applied to intra-frequency SSB / CSI-RS measurements / inter-frequency SSB / CSI-RS measurements with measurement gaps, and / or intra-frequency SSB / CSI-RS measurements / inter-frequency SSB / CSI-RS measurements without measurement gaps.

[0081] In this application, a measurement gap, an SMTC window, an SSB symbol, a CSI-RS symbol, etc. may be referred to as a period or interval associated with a measurement.

[0082] <Operation Example> Next, an operation example of the terminal 200 will be described with reference to FIG.

[0083] In step S11, if the timing of receiving or transmitting a signal ( / channel) overlaps with the period associated with measurement using a measurement signal, the terminal 200 determines whether to receive or transmit the signal ( / channel) or perform measurement using the measurement signal.

[0084] In step S12, the terminal 200 receives or transmits a signal ( / channel) at the above timing in accordance with the determination in step S11.

[0085] The processing of steps S11 and S12 may be considered to correspond to prioritizing the transmission / reception of channels / signals over RRM measurements based on one or more certain conditions, as described above.

[0086] As described above, according to Proposal 1, it is possible to prioritize channel / signal transmission / reception over RRM measurements based on conditions, thereby reducing the impact of scheduling restrictions on measurements.

[0087] <Proposal 2> Proposal 2 describes support for notification by the base station to skip or disable measurement gaps.

[0088] The operation of the terminal 200 with respect to skipping or disabling measurement gaps may be based on notification by the base station 100 .

[0089] For example, if the terminal 200 is notified by the base station 100 to skip or disable a measurement gap opportunity, the terminal 200 may not perform RRM measurements (and / or Positioning Reference Signal (PRS) measurements) during the measurement gap opportunity, and may receive / transmit DL / UL channels / signals during the measurement gap opportunity.

[0090] Skipping or disabling of measurement gap opportunities may be signaled according to Alt 1 / 2 below.

[0091] [Alt 1] The skipping or disabling of measurement gap occasions may be notified by semi-static notification via RRC or SIB. For example, RRC may configure a measurement gap skipping pattern, or the SIB may notify the measurement gap skipping pattern. When multiple measurement gap configurations are configured, the measurement gap skipping pattern may be common to all of the multiple measurement gap configurations, or may be configured / notified for each measurement gap configuration. The semi-static notification via RRC or SIB may be referred to as information indicating that measurements will not be performed (during part of the periodic extended period for measurements), or the like. The terminal 200 may be notified of the skipping or disabling of measurement gap occasions by receiving the semi-static notification from the base station 100, and may determine measurement gap occasions to skip and / or not to skip based on the semi-static notification.

[0092] A measurement gap occasion configured / indicated as not skipped is not skipped, and terminal 200 is required to perform RRM measurements in the non-skipped measurement gap occasion, and scheduling restrictions defined in the current standard apply to the non-skipped measurement gap occasion. In a measurement gap occasion configured / indicated as skipped, terminal 200 may not perform RRM measurements and may receive / transmit DL / UL channels / signals.

[0093] 7 shows an example of notification of skipping of measurement gap opportunities based on Alt 1. As shown in FIG. 7 , when the measurement gap skip pattern set for the measurement gap configuration is "Not skip / enable," "Skip / disable," "Not skip / enable," or "Not skip / enable," among the measurement gap opportunities shown in the figure, the first measurement gap opportunity is set as not skipped (enabled), the second measurement gap opportunity is set as skipped (disabled), the third measurement gap opportunity is set as not skipped (enabled), and the fourth measurement gap opportunity is set as not skipped (enabled). Therefore, terminal 200 determines to skip the second measurement gap opportunity and may receive / transmit DL / UL channels / signals without performing RRM measurement in the second measurement gap.

[0094] [Alt 2] The skipping or disabling of measurement gap opportunities may be notified by dynamic notification using DCI or MAC CE. The dynamic notification using DCI or MAC CE may be referred to as information indicating that measurements will not be performed (during part of the periodic extended period for measurements), or the like. The terminal 200 may be notified of the skipping or disabling of measurement gap opportunities by receiving the dynamic notification from the base station 100, and may determine which measurement gap opportunities to skip and which measurement gap opportunities not to skip based on the dynamic notification. The dynamic notification using DCI or MAC CE may follow Alt 2-1 / 2-2 / 2-3 / 2-4 below.

[0095] Alt 2-1 DCI or MAC CE may indicate skipping of N consecutive measurement gap opportunities (N is an integer equal to or greater than 1).

[0096] As an example of Alt 2-1, the first measurement gap opportunity to be skipped may be the first measurement gap opportunity X symbols / slots after the last symbol / slot of the DCI for the notification (or the HARQ-ACK for the PDSCH corresponding to (or including) the MAC CE for the notification). In this way, terminal 200 may determine the first measurement gap opportunity to be skipped based on the DCI / MAC CE. The value of X may be defined by a standard, may be set by RRC, or may be notified by the DCI / MAC CE for the notification.

[0097] The value of N may also be defined by a standard (for example, N=1), may be set by the RRC, or may be notified by the DCI / MAC CE for notification.

[0098] Measurement gap occasions that are not included in the N consecutive measurement gap occasions are not skipped, and terminal 200 is required to perform RRM measurements in the non-skipped measurement gap occasions, and scheduling restrictions defined in the current standard apply to non-skipped measurement gap occasions. In the N consecutive measurement gap occasions, terminal 200 may receive / transmit DL / UL channels / signals without performing RRM measurements.

[0099] 8 shows an example of notification of skipping of measurement gap opportunities based on Alt 2-1, in which the DCI indicates that N consecutive measurement gap opportunities (N=2 in the example shown in FIG. 8) will be skipped. In this example, the first and second measurement gap opportunities shown in the figure are skipped. Therefore, terminal 200 may decide to skip the first and second measurement gap opportunities shown in the figure, and may receive / transmit DL / UL channels / signals without performing RRM measurements during these measurement gap opportunities.

[0100] The Alt 2-2 DCI or MAC CE may indicate skipping of measurement gap opportunities within a skipping window, which may also be referred to as a no-measurement period, a period during which measurements are not performed, etc.

[0101] As an example of Alt 2-2, the start of the skip window may be X symbols / slots after the last symbol / slot of the DCI for notification (or HARQ-ACK for the PDSCH corresponding to the MAC CE for notification). In this manner, terminal 200 may determine the start of the skip window based on the DCI / MAC CE. The value of X may be defined by a standard, may be set by RRC, or may be notified by the DCI / MAC CE for notification.

[0102] Furthermore, the length of the skip window may also be defined by a standard, may be set by the RRC, or may be notified by the DCI / MAC CE for notification.

[0103] Measurement gap occasions that are not included in the skip window are not skipped, and terminal 200 is required to perform RRM measurements during non-skipped measurement gap occasions, and scheduling restrictions defined in the current standard apply to non-skipped measurement gap occasions. During measurement gap occasions that are included in the skip window, terminal 200 may receive / transmit DL / UL channels / signals without performing RRM measurements.

[0104] 9 shows an example of a notification of skipping of measurement gap opportunities based on Alt 2-2, in which the DCI notifies that measurement gap opportunities included in the skip window will be skipped. In this example, the first and second measurement gap opportunities shown in the figure are skipped. Therefore, terminal 200 may decide to skip the first and second measurement gap opportunities shown in the figure, and may receive / transmit DL / UL channels / signals without performing RRM measurements during these measurement gap opportunities.

[0105] The Alt 2-3 DCI or MAC CE may indicate whether to skip or not skip each of N consecutive measurement gap opportunities (N is an integer equal to or greater than 1).

[0106] As an example of Alt 2-3, the DCI or MAC CE may signal (may include) a bitmap in which each bit indicates whether a corresponding measurement gap opportunity among the indicated N consecutive measurement gap opportunities is to be skipped or not. A bit value of "0" may indicate "not skipped," a bit value of "1" may indicate "skip," or a bit value of "1" may indicate "not skipped," and a bit value of "0" may indicate "skip." For measurement gap opportunities indicated as "skipped," the terminal 200 does not perform RRM measurements during the measurement gap opportunity, and scheduling restrictions defined in the current standard do not apply, and the terminal 200 may receive / transmit DL / UL channels / signals. On the other hand, for measurement gap opportunities indicated as "not skipped," the terminal 200 must perform RRM measurements during the measurement gap opportunity, and scheduling restrictions defined in the current standard apply during non-skipped measurement gap opportunities.

[0107] The first measurement gap opportunity among the N consecutive measurement gap opportunities may be determined to be the first measurement gap opportunity X symbols / slots after the last symbol / slot of the DCI for the notification (or the HARQ-ACK for the PDSCH corresponding to the MAC CE for the notification). In this way, terminal 200 may determine the first measurement gap opportunity to be skipped based on the DCI / MAC CE. The value of X may be defined by a standard, may be set by RRC, or may be notified by the DCI / MAC CE for the notification.

[0108] Furthermore, the value of N may also be defined by a standard, may be set by the RRC, or may be notified by the DCI / MAC CE for notification.

[0109] 10 shows an example of notification of skipping of measurement gap opportunities based on Alt 2-3, in which the DCI indicates a skip pattern for N consecutive measurement gap opportunities (N=4 in the example shown in FIG. 10) using a bitmap. In this example, the bitmap (skip pattern) is "0100" (0: not skipped, 1: skipped in this example), and the second measurement gap opportunity shown in the figure is skipped. Therefore, terminal 200 determines to skip the second measurement gap opportunity shown in the figure and may receive / transmit DL / UL channels / signals without performing RRM measurements during this measurement gap opportunity.

[0110] The Alt 2-4 DCI or MAC CE may indicate that the configured measurement gap will be disabled until the terminal 200 receives another DCI or MAC CE that enables the measurement gap. In other words, upon receiving a DCI or MAC CE that disables the measurement gap, the terminal 200 may continue the measurement gap disabled state until it receives another DCI or MAC CE that enables the measurement gap. The DCI or MAC CE that disables the measurement gap may be referred to as information indicating that measurements will be performed (in another part of the periodic extended period for measurements), etc.

[0111] As an example of Alt 2-4, when terminal 200 detects or receives a DCI or MAC CE from base station 100 indicating that measurement gaps will be disabled, terminal 200 may determine to disable measurement gap opportunities X symbols / slots after the last symbol / slot of the DCI (or HARQ-ACK for the PDSCH corresponding to the MAC CE). The value of X may be defined by a standard, configured by RRC, or indicated by the DCI / MAC CE.

[0112] When multiple measurement gaps or measurement gap configurations are configured, the DCI or MAC CE may indicate that all of the configured measurement gaps or measurement gap configurations are to be disabled, or may indicate that a certain measurement gap or measurement gap configuration among the configured measurement gaps or measurement gap configurations is to be disabled. For example, when the DCI or MAC CE indicates that a certain measurement gap or measurement gap configuration is to be disabled, the DCI or MAC CE may also indicate the corresponding measurement gap (configuration) ID (or index) or FR.

[0113] When the measurement gap is disabled and terminal 200 detects or receives, from base station 100, a (different) DCI or MAC CE indicating that the measurement gap is to be enabled, terminal 200 may determine to enable the measurement gap opportunity Y symbols / slots after the last symbol / slot of the (different) DCI for the notification (or HARQ-ACK for the PDSCH corresponding to the (different) MAC CE for the notification). The value of Y may be defined by a standard, may be configured by RRC, or may be indicated by the (different) DCI / MAC CE for the notification.

[0114] FIG. 11 shows an example of notification of skipping of measurement gap opportunities based on Alt 2-4, in which a DCI indicates that a measurement gap will be disabled, and then another DCI indicates that a measurement gap will be enabled. In this example, a DCI indicates that a measurement gap will be disabled before the first measurement gap opportunity shown in the figure. This causes subsequent measurement gap opportunities that satisfy the above-mentioned condition to be disabled / skipped. In this example, the first measurement gap opportunity is skipped until the third measurement gap opportunity before another DCI is received. After the third measurement gap opportunity, another DCI indicates that a measurement gap will be enabled. This prevents subsequent measurement gap opportunities from being enabled / skipped (until yet another DCI indicates that a measurement gap will be disabled). Therefore, terminal 200 may decide to skip the first to third measurement gap opportunities shown in the figure and may receive / transmit DL / UL channels / signals without performing RRM measurements during these measurement gap opportunities. On the other hand, terminal 200 decides not to skip the last measurement gap opportunity shown in the figure and needs to perform RRM measurements in this measurement gap opportunity, and in measurement gap opportunities that are not skipped, the scheduling restrictions defined in the current standard apply.

[0115] - Variations of Alt 2-1 / 2-2 / 2-3 / 2-4 Dynamic notification by DCI or MAC CE may be applied only to one or more specific measurement gap types (e.g., FR1 measurement gap or FR2 measurement gap, etc.) or only to per UE measurement gaps.

[0116] Also, when multiple measurement gap configurations are configured, the following options a / b may be adopted.

[0117] Option a: Dynamic notification by DCI or MAC CE may be notified for all of multiple measurement gap configurations, i.e., dynamic notification by DCI or MAC CE may be common notification for multiple measurement gap configurations.

[0118] Option b: Dynamic notification by DCI or MAC CE may be signaled for each measurement gap configuration, i.e., the target measurement gap configuration also needs to be signaled in the dynamic notification by DCI or MAC CE.

[0119] In this application, a measurement gap (opportunity) may also be referred to as an extended period or interval for measurement.

[0120] <Operation Example> Next, an operation example of the terminal 200 will be described with reference to FIG.

[0121] In step S21, terminal 200 receives first information regarding an extended period for measurement using a measurement signal from base station 100. For example, the first information may be an existing measurement gap configuration information element (e.g., MeasGapConfig IE), which is an RRC parameter, or a (new) information element similar to the existing information element.

[0122] In step S22, the terminal 200 periodically sets an extended period for measurement using the measurement signal based on the received first information.

[0123] In step S23, the terminal 200 receives second information indicating that the terminal 200 will not perform measurements during a portion of the periodic extended period from the base station 100. For example, the second information may be the semi-static notification described in Alt 1 / dynamic notification described in Alt 2.

[0124] In step S24, the terminal 200 performs reception or transmission of signals to or from the base station without performing measurements during a part of the periodic extended period based on the received second information.

[0125] As described above, according to Proposal 2, measurement gaps (opportunities) can be skipped or disabled based on semi-static / dynamic notification from the base station, thereby reducing the impact of scheduling restrictions on measurements.

[0126] <Proposal 3> Proposal 3 describes support for terminals to report requests / notifications to skip or disable measurement gaps.

[0127] Terminal 200 may report a request / notification to skip or disable measurement gaps to base station 100 via UCI / MAC CE on PUCCH / PUSCH. When reporting via PUCCH / PUSCH, PUCCH / PUSCH resources for terminal 200 to report a request / notification to skip or disable measurement gaps may be configured by RRC or may be indicated by scheduling DCI. The request / notification to skip or disable measurement gaps may be referred to as information indicating not to perform measurements (during part of the periodic extended period for measurements), or the like.

[0128] The reporting of the request / indication to skip or disable measurement gaps may be periodic, semi-persistent, aperiodic, and / or event-triggered. If such reporting is event-triggered, the event may be, for example, an event indicating a situation in which measurements do not need to be performed. For example, the event may be a predetermined number of measurement periods (e.g., SMTC windows) in which the measured reception quality of the measurement signal (e.g., SSB) falls within a predetermined range, or a predetermined number of consecutive measurement periods in which the measured reception quality of the measurement signal falls within a predetermined range.

[0129] The report content and reporting procedure may follow options 1 / 2 / 3 below.

[0130] [Option 1] The terminal 200 may report a request to trigger skipping or disabling of a measurement gap to the base station 100. After reporting this request to the base station 100, the terminal 200 may monitor / receive a notification from the base station 100 notifying the base station 100 of skipping or disabling the measurement gap (the notification may be sent from the base station 100). In option 1, how to skip a measurement gap may depend on the notification from the base station 100. That is, the base station 100 may notify the terminal 200 how to skip a measurement gap (the terminal 200 may be notified by the base station 100 how to skip a measurement gap).

[0131] The notification by the base station 100 of how to skip measurement gaps may follow the above-mentioned proposal 2 (including options, Alt 1 / 2 (Alt 2-1 to Alt 2-4)). That is, the operation of the terminal 200 when skipping measurement gap opportunities may follow the notification from the base station 100 as described in the above-mentioned proposal 2.

[0132] For example, as shown in Fig. 12, after the terminal 200 makes the request to the base station 100, the terminal 200 receives a notification from the base station 100 on how to skip the measurement gap. Then, the terminal 200 skips the measurement gap opportunity based on the notification from the base station 100.

[0133] [Option 2] The terminal 200 may report a request to skip or disable a measurement gap and information about requested / suggested skipping occasions (measurement gap occasions to skip) to the base station 100. In this case, the terminal 200 also requests / suggests the measurement gap occasions to skip.

[0134] In option 2, either a notification from base station 100 on how to skip the measurement gap or a confirmation from base station 100 confirming (accepting, approving) the request to skip or disable the measurement gap is required. In the former case, terminal 200 skips the measurement gap opportunity according to the notification from base station 100, and in the latter case, terminal 200 skips the measurement gap opportunity as requested / submitted by terminal 200. This will be described later with reference to Figures 13 and 14.

[0135] The content of the request by the terminal 200 may include one or more of the following options 2-a to 2-d.

[0136] Option 2-a: Skipping N consecutive measurement gap opportunities (N is an integer equal to or greater than 1). The first measurement gap opportunity to be skipped may be the first measurement gap opportunity X symbols / slots after the last symbol / slot of the request (e.g., PUCCH / PUSCH / MAC CE corresponding to the request). Terminal 200 may determine the first measurement gap opportunity to be skipped in this manner. The value of X may be defined by a standard, configured by RRC, or signaled by the request.

[0137] The value of N may also be defined by the standard (for example, N=1), may be set by the RRC, or may be notified by the request.

[0138] Option 2-b: Skip Measurement Gap Opportunities Within the Skip Window The start of the skip window may be X symbols / slots after the last symbol / slot of the request (e.g., the PUCCH / PUSCH / MAC CE corresponding to the request). Terminal 200 may determine the start of the skip window in this manner. The value of X may be defined by a standard, configured by RRC, or signaled by the request.

[0139] The length of the skip window may also be defined by the standard, set by the RRC, or notified by the request.

[0140] Option 2-c: Skip pattern for skipping or not skipping each of N consecutive measurement gap opportunities (N is an integer equal to or greater than 1). The request may signal (or include) a bitmap in which each bit indicates whether to skip or not skip a corresponding measurement gap opportunity among the signaled N consecutive measurement gap opportunities. A bit value of "0" may indicate "not skipping" and a bit value of "1" may indicate "skip." Alternatively, a bit value of "1" may indicate "not skipping" and a bit value of "0" may indicate "skip."

[0141] The first measurement gap opportunity of the N consecutive measurement gap opportunities may be the first measurement gap opportunity X symbols / slots after the last symbol / slot of the request (e.g., the PUCCH / PUSCH / MAC CE corresponding to the request). Terminal 200 may determine the first measurement gap opportunity to be skipped in this manner. The value of X may be defined by a standard, configured by RRC, or signaled by the request.

[0142] The value of N may also be defined by the standard, set by the RRC, or notified by the request.

[0143] Option 2-d: The terminal 200 may inform the UE 200 that the configured measurement gap will be disabled (remain disabled) until the terminal 200 transmits a request to enable the measurement gap. The request to enable the measurement gap may be referred to as information indicating that measurements will be performed (in another part of the extended period for measurements).

[0144] Terminal 200 may determine to disable measurement gap opportunities X symbols / slots after the request (e.g., PUCCH / PUSCH / MAC CE corresponding to the request). The value of X may be defined by a standard, configured by RRC, or signaled by the DCI / MAC CE for the signaling.

[0145] When measurement gaps are disabled and terminal 200 transmits a (separate) request to enable measurement gaps, terminal 200 may determine to enable measurement gap opportunities Y symbols / slots after the last symbol / slot of the (separate) request (e.g., PUCCH / PUSCH / MAC CE corresponding to the (separate) request), where the value of Y may be defined by a standard, configured by RRC, or signaled by the (separate) request.

[0146] Modifications of Options 2-a / 2-b / 2-c / 2-d The content of the request by the terminal 200 may be for one or more of the following Alt 1 to Alt 3.

[0147] The content of the request by the Alt 1 terminal 200 may be for all measurement gap configurations / types.

[0148] The content of the request by the Alt 2 terminal 200 may be for one or more specific measurement gap configurations, and one or more target measurement gap configurations may be included in the request.

[0149] Alt 3 The request by the terminal 200 may be for a specific measurement gap type (eg, per UE / FR measurement gap, FR1 / FR2 measurement gap, etc.).

[0150] After the terminal 200 reports a request to skip or disable a measurement gap (e.g., a request according to option 2-a / 2-b / 2-c / 2-d) to the base station 100, the operation of the terminal 200 may be according to option 2-1 / 2-2 below.

[0151] Option 2-1: The terminal 200 may be expected to monitor / receive a notification from the base station 100 notifying the terminal 200 to skip or disable measurement gaps (the notification is sent from the base station 100). In option 2-1, how to skip measurement gaps may depend on the notification from the base station 100. That is, the base station 100 may notify the terminal 200 how to skip measurement gaps (the terminal 200 may be notified by the base station 100 how to skip measurement gaps).

[0152] The notification by the base station 100 of how to skip measurement gaps may follow the above-mentioned proposal 2 (including options, Alt 1 / 2 (Alt 2-1 to Alt 2-4)). That is, the operation of the terminal 200 when skipping measurement gap opportunities may follow the notification from the base station 100 as described in the above-mentioned proposal 2.

[0153] 13 , the terminal 200 transmits the request and an indication of how to skip the measurement gap to the base station 100, and then receives a notification of how to skip the measurement gap from the base station 100. Then, the terminal 200 skips the measurement gap opportunity based on the notification from the base station 100.

[0154] Option 2-2: Terminal 200 may expect to monitor / receive a confirmation from base station 100 confirming (acknowledging) the request to skip or disable the measurement gap. If terminal 200 receives this confirmation (during the monitoring window), it may skip the measurement gap occasion as requested. On the other hand, if terminal 200 does not receive this confirmation (during the monitoring window), it cannot skip the measurement gap occasion as requested.

[0155] The monitoring window mentioned above may be determined as follows: The start of the monitoring window may be the first symbol / slot after K symbols / slots of the request, or the first PDCCH monitoring symbol / slot (for a particular search space type or for a particular DCI format) after the request. The length of the monitoring window may be defined by the standard, configured by RRC, or reported in the request.

[0156] For example, as shown in Figure 14, terminal 200 transmits the request and an indication of how to skip the measurement gap to base station 100, and then receives a confirmation from base station 100. Terminal 200 then skips the measurement gap opportunity as requested (indicated) (e.g., based on the requested (indicated) skip pattern).

[0157] As a variation of option 2-2, if the request by the terminal 200 is for multiple measurement gap configurations / types, the confirmation by the base station 100 may follow Alt 1 / 2 below.

[0158] Alt 1: A single confirmation only needs to be applied to requests for multiple measurement gap configurations / types.

[0159] Alt 2: The terminal 200 may expect (receive) confirmation for each measurement gap configuration / type.

[0160] [Option 3] Terminal 200 may report a notification to skip or disable a measurement gap opportunity to base station 100. In option 3, no notification from base station 100 on how to skip a measurement gap or confirmation from base station 100 to confirm (accept, approve) a request to skip or disable a measurement gap is required, and terminal 200 may skip a measurement gap opportunity as notified by terminal 200.

[0161] The content of the notification by the terminal 200 may include one or more of Option 2-a to Option 2-d (including variations) of the above-mentioned Proposal 3. Here, in Option 2-a to Option 2-d of the above-mentioned Proposal 3, "request" may be replaced with "notification."

[0162] The operation of the terminal 200 after reporting to the base station 100 a notification to skip or disable a measurement gap (e.g., a notification according to options 2-a / 2-b / 2-c / 2-d of Proposal 3 described above) may be as follows:

[0163] - For measurement gap occasions notified as "skipped / disabled", the terminal 200 does not perform RRM measurements during the measurement gap occasion and scheduling restrictions defined in the current standard do not apply (terminal 200 may receive / transmit DL / UL channels / signals).

[0164] For measurement gap occasions that are notified as "not skipped / enabled", the terminal 200 must perform RRM measurements during the measurement gap occasions, and for non-skipped measurement gap occasions the scheduling restrictions defined in the current standard apply.

[0165] For example, as shown in FIG. 15, after transmitting the notification to the base station 100, the terminal 200 skips the measurement gap opportunity as notified (e.g., based on the notified skip pattern) without receiving any notification or confirmation from the base station 100.

[0166] [Variations of Options 1 / 2 / 3] If multiple measurement gap configurations / types exist, the terminal 200 may report a request / instruction to the base station 100 without details regarding the measurement gap configuration / type for which the request / notification to skip or disable the measurement gap is intended (it may report a request / notification to the base station 100 to skip or disable the measurement gap for all of the multiple measurement gap configurations / types), or it may also report information to the base station 100 regarding the target measurement gap configuration or specific measurement gap type (e.g., per UE / FR, FR1 / FR2, etc.) that is intended to be skipped or disabled.

[0167] In this application, a measurement gap (opportunity) may also be referred to as an extended period or interval for measurement.

[0168] <Operation Example> Next, an operation example of the terminal 200 will be described with reference to FIG.

[0169] In step S31, terminal 200 receives first information regarding an extended period for measurement using a measurement signal from base station 100. For example, the first information may be an existing measurement gap configuration information element (e.g., MeasGapConfig IE), which is an RRC parameter, or a (new) information element similar to the existing information element.

[0170] In step S32, the terminal 200 periodically sets an extended period for measurement using the measurement signal based on the received first information.

[0171] In step S33, the terminal 200 transmits second information indicating that the measurement will not be performed to the base station 100. For example, the second information may be the request described in Option 1 / 2 / the notification described in Option 3.

[0172] In step S34, in response to the transmission of the second information in step S33, the terminal 200 does not perform measurements and performs signal reception or transmission with the base station during part of the periodic extended period.

[0173] Between steps S33 and S34, as described in option 1 / 2-1, the base station 100 may send to the terminal 200 a notification of how to skip the periodic extended period (information indicating that measurements will not be performed during part of the periodic extended period), or as described in option 2-2, the base station 100 may send to the terminal 200 a confirmation that measurements will not be performed during part of the periodic extended period, or as described in option 3, no communication may occur between the terminal 200 and the base station 100.

[0174] As described above, according to Proposal 3, measurement gaps (opportunities) can be skipped or disabled in response to a request / notification from the terminal, thereby reducing the impact of scheduling restrictions on measurements.

[0175] <Proposal 4> Proposal 4 describes support for periodic / semi-persistent / non-periodic measurement gaps.

[0176] In the above-mentioned proposals 1 to 3, the measurement gaps are described assuming that they are periodic. However, the measurement gaps are not limited to periodic measurement gaps. Specifically, the measurement gaps may include periodic measurement gaps, semi-persistent measurement gaps, and aperiodic measurement gaps.

[0177] Regarding periodic measurement gaps, once configured, the periodic measurement gaps may be always enabled (may be in an enabled state). In this case, the terminal 200 may receive RRC parameters for configuring periodic measurement gaps from the base station 100 and perform intra-frequency RRM measurements / inter-frequency RRM measurements at each configured measurement gap opportunity. The RRC parameters may be, for example, an information element in which a parameter indicating a measurement gap type, such as a periodic measurement gap, a semi-persistent measurement gap, or an aperiodic measurement gap, is added to an existing RRM measurement configuration information element (e.g., MeasGapConfig IE), or may be a (new) information element for periodic measurement gaps similar to the information element.

[0178] Regarding a semi-persistent measurement gap, the semi-persistent measurement gap may be activated / deactivated by an activation / deactivation DCI or MAC CE. Once the terminal 200 receives RRC parameters for configuring a semi-persistent measurement gap and detects or receives a DCI or MAC CE from the base station 100 for the configured measurement gap, activating the measurement gap (once the semi-persistent measurement gap is activated), the terminal 200 may perform intra-frequency / inter-frequency RRM measurements at each measurement gap opportunity (until detecting or receiving a DCI or MAC CE for deactivating the measurement gap). Also, once the semi-persistent measurement gap is activated, scheduling restrictions defined in previous standards may apply. On the other hand, once the terminal 200 detects or receives a DCI or MAC CE that deactivates the measurement gap (once the semi-persistent measurement gap is deactivated), the terminal 200 does not perform intra-frequency / inter-frequency RRM measurements at each measurement gap opportunity (until detecting or receiving a DCI or MAC CE that activates the measurement gap), and may receive / transmit DL / UL channels / signals. The above RRC parameter may be, for example, an information element obtained by adding a parameter indicating a measurement gap type, such as a periodic measurement gap, a semi-persistent measurement gap, or an aperiodic measurement gap, to an existing RRM measurement configuration information element (e.g., MeasGapConfig IE), or may be a (new) information element for a semi-persistent measurement gap similar to the information element.

[0179] Regarding aperiodic measurement gaps, the aperiodic measurement gaps may be activated by a DCI or a MAC CE. When the terminal 200 receives RRC parameters for configuring the aperiodic measurement gaps and detects or receives an activation DCI or MAC CE for activating the configured measurement gap from the base station 100 for the configured measurement gap (when the aperiodic measurement gap is activated), the terminal 200 may perform intra-frequency RRM measurements / inter-frequency RRM measurements at the notified measurement gap opportunity. The above RRC parameters may be, for example, an information element in which a parameter indicating a measurement gap type, such as a periodic measurement gap, a semi-persistent measurement gap, or an aperiodic measurement gap, is added to an existing RRM measurement configuration information element (e.g., MeasGapConfig IE), or may be a (new) information element for aperiodic measurement gaps similar to the information element.

[0180] <Example of Operation> Next, with reference to FIG. 23, an example of operation of terminal 200 regarding semi-persistent measurement gaps will be described.

[0181] In step S41, terminal 200 receives first information regarding an extended period for measurement using a measurement signal from base station 100. For example, the first information may be a measurement gap configuration information element (e.g., MeasGapConfig IE), which is an RRC parameter, or a (new) information element similar to the information element.

[0182] In step S42, the terminal 200 periodically sets an extended period for measurement using the measurement signal based on the received first information.

[0183] In step S43, the terminal 200 receives second information for activating the extended period from the base station 100. For example, the second information may be a DCI or MAC CE activating the measurement gap described for a semi-persistent measurement gap.

[0184] In step S44, the terminal 200 performs measurements and does not receive or transmit signals to or from the base station during the subsequent extended period.

[0185] Thereafter, when the terminal 200 receives third information for deactivating the extended period from the base station 100, the terminal 200 may perform signal reception or transmission without performing measurements during the extended period. For example, the third information may be DCI or MAC CE for deactivating the measurement gap described for the semi-persistent measurement gap.

[0186] Also, for periodic measurement gaps, steps S41 and S42 may be performed, and then steps S43 and S44 may not be performed, enabling the periodic extended period.

[0187] Also, for aperiodic measurement gaps, after steps S41 to S43 are performed, the terminal 200 performs measurements only in one extended period in step S44.

[0188] This proposal is also applicable to multiple measurement gaps (configurations), in which case a list of multiple measurement gaps (configurations) may be configured by the RRC.

[0189] As described above, according to Proposal 4, semi-persistent activation and deactivation of measurement gaps / non-periodic activation of measurement gaps can reduce the impact of scheduling restrictions on measurements.

[0190] <Proposal 5> Proposal 5 describes support for notification by a base station to skip or disable RRM measurements.

[0191] The operation of the terminal 200 with respect to skipping or disabling the RRM measurements may be based on notification by the base station 100 .

[0192] For example, if the terminal 200 is notified by the base station 100 to skip or disable an RRM measurement occasion (e.g., an SMTC window), the terminal 200 does not perform RRM measurements at the RRM measurement occasion, and conventional scheduling restrictions do not apply to the measured symbols or symbols within the SMTC window period. If the RRM measurement does not involve a measurement gap, the terminal 200 may receive DL channels / signals at the SSB / CSI-RS symbols measured (within the SMTC window) and may receive / transmit DL / UL channels / signals at all symbols within the SMTC window period.

[0193] Skipping or disabling RRM measurements may be according to option 1 / 2 below.

[0194] [Option 1] Skipping or disabling of RRM measurements may be notified / configured for each RRM measurement configuration. More specifically, skipping or disabling of RRM measurements may follow the following options 1-1 / 1-2.

[0195] Option 1-1: The skipping or disabling of RRM measurement occasions may be notified by semi-static notification via RRC or SIB. A semi-static RRM measurement skipping or disabling pattern may be configured by RRC for each RRM measurement configuration. The semi-static notification via RRC or SIB may be referred to as information indicating that measurements will not be performed (during a portion of a periodic period associated with the measurement), or the like. The terminal 200 may be notified of the skipping or disabling of RRM measurement occasions by receiving the semi-static notification from the base station 100, and may determine which RRM measurement occasions to skip and / or which RRM measurement occasions not to skip based on the semi-static notification.

[0196] Option 1-2: Skipping or disabling of RRM measurement occasions may be notified by dynamic notification. Dynamic notification (e.g., DCI or MAC CE) may notify skipping or disabling of RRM measurement for a certain RRM measurement configuration. In this case, the target RRM measurement configuration index (or ID) may be notified by DCI or MAC CE. Dynamic notification may be referred to as information indicating that measurements will not be performed (during a portion of the periodic period associated with the measurement). The terminal 200 may be notified of the skipping / disabling of RRM measurement occasions by receiving the dynamic notification from the base station 100, and may determine which RRM measurement occasions to skip and which not to skip based on the dynamic notification. The dynamic notification may follow the following options 1-2-1, 1-2-2, 1-2-3, and 1-2-4.

[0197] Option 1-2-1 As explained in Alt 2-1 of Proposal 2, the DCI or MAC CE may indicate the skipping of N consecutive RRM measurement occasions (N is an integer equal to or greater than 1).

[0198] As an example of option 1-2-1, the first RRM measurement occasion to be skipped may be the first RRM measurement occasion X symbols / slots after the last symbol / slot of the DCI for the notification (or the HARQ-ACK for the PDSCH corresponding to the MAC CE for the notification). In this manner, terminal 200 may determine the first RRM measurement occasion to be skipped based on the DCI / MAC CE. The value of X may be defined by a standard, may be set by RRC, or may be notified by the DCI / MAC CE for the notification.

[0199] The value of N may also be defined by a standard (for example, N=1), may be set by the RRC, or may be notified by the DCI / MAC CE for notification.

[0200] An RRM measurement occasion that is not included in the N consecutive RRM measurement occasions is not skipped, and the terminal 200 needs to perform RRM measurements in the non-skipped RRM measurement occasions, and the scheduling restrictions defined in the current standard apply to the non-skipped RRM measurement occasions. In the N consecutive RRM measurement occasions, the terminal 200 may not perform RRM measurements and may receive / transmit DL / UL channels / signals.

[0201] As described in Alt 2-2 of Option 1-2-2 of Proposal 2, the DCI or MAC CE may indicate skipping of RRM measurement occasions within a skip window. The skip window may also be referred to as a no-measurement period, a period during which measurements are not performed, etc.

[0202] As an example of option 1-2-2, the start of the skip window may be X symbols / slots after the last symbol / slot of the DCI for notification (or HARQ-ACK for the PDSCH corresponding to the MAC CE for notification). In this manner, terminal 200 may determine the start of the skip window based on the DCI / MAC CE. The value of X may be defined by a standard, may be set by RRC, or may be notified by the DCI / MAC CE for notification.

[0203] Furthermore, the length of the skip window may also be defined by a standard, may be set by the RRC, or may be notified by the DCI / MAC CE for notification.

[0204] The RRM measurement occasions not included in the skip window are not skipped, and the terminal 200 must perform RRM measurements in the non-skipped RRM measurement occasions, and the scheduling restrictions defined in the current standard apply to the non-skipped RRM measurement occasions. In the RRM measurement occasions included in the skip window, the terminal 200 may not perform RRM measurements and may receive / transmit DL / UL channels / signals.

[0205] Option 1-2-3 As described in Alt 2-3 of Proposal 2, the DCI or MAC CE may indicate whether to skip or not skip each of N consecutive RRM measurement occasions (N is an integer equal to or greater than 1).

[0206] As an example of Option 1-2-3, the DCI or MAC CE may signal (may include) a bitmap in which each bit indicates whether a corresponding RRM measurement occasion among the indicated N consecutive RRM measurement occasions is skipped or not. A bit value of "0" may indicate "not skipped" and a bit value of "1" may indicate "skip." Alternatively, a bit value of "1" may indicate "not skipped" and a bit value of "0" may indicate "skip." For an RRM measurement occasion indicated as "skipped," the terminal 200 does not perform RRM measurement during the RRM measurement occasion, and scheduling restrictions defined in the current standard are not applied, and the terminal 200 may receive / transmit DL / UL channels / signals. On the other hand, for an RRM measurement occasion indicated as "not skipped," the terminal 200 must perform RRM measurement during the RRM measurement occasion, and scheduling restrictions defined in the current standard are applied during non-skipped RRM measurement occasions.

[0207] The first RRM measurement occasion of the N consecutive RRM measurement occasions may be determined to be the first RRM measurement occasion X symbols / slots after the last symbol / slot of the DCI for the notification (or the HARQ-ACK for the PDSCH corresponding to the MAC CE for the notification). In this manner, terminal 200 may determine the first RRM measurement occasion to be skipped based on the DCI / MAC CE. The value of X may be defined by a standard, may be set by RRC, or may be notified by the DCI / MAC CE for the notification.

[0208] Furthermore, the value of N may also be defined by a standard, may be set by the RRC, or may be notified by the DCI / MAC CE for notification.

[0209] Option 1-2-4 As described in Alt 2-4 of Proposal 2, the DCI or MAC CE may indicate that the terminal 200 will disable the configured RRM measurements until it receives another DCI or MAC CE that enables the RRM measurements. In other words, when the terminal 200 receives a DCI or MAC CE that disables the RRM measurements, it may continue to disable the RRM measurements until it receives another DCI or MAC CE that enables the RRM measurements. The other DCI or MAC CE that enables the RRM measurements may be referred to as information indicating that the measurements will be performed (in (another) part of the periodic period associated with the measurements), or the like.

[0210] As an example of option 1-2-4, when terminal 200 detects or receives a DCI or MAC CE from base station 100 notifying that RRM measurements will be disabled, terminal 200 may determine to disable RRM measurements X symbols / slots after the last symbol / slot of the DCI for the notification (or a HARQ-ACK for a PDSCH corresponding to the MAC CE for the notification). The value of X may be defined by a standard, may be set by RRC, or may be notified by the DCI / MAC CE for the notification.

[0211] When RRM measurement is disabled and terminal 200 detects or receives, from base station 100, a (different) DCI or MAC CE notifying that RRM measurement is to be enabled, terminal 200 may determine to enable RRM measurement Y symbols / slots after the last symbol / slot of the (different) DCI for notification (or a HARQ-ACK for a PDSCH corresponding to the (different) MAC CE for notification). The value of Y may be defined by a standard, may be set by RRC, or may be notified by the (different) DCI / MAC CE for notification.

[0212] [Option 2] Skipping or disabling of RRM measurements may be notified / configured (commonly) for multiple RRM measurement configurations. More specifically, skipping / disabling of RRM measurements may follow the following Option 2-1 / 2-2.

[0213] Option 2-1: The skipping or disabling of RRM measurement occasions may be notified by semi-static notification via RRC or SIB. A semi-static RRM measurement skipping or disabling pattern may be configured by RRC. The semi-static notification via RRC or SIB may be referred to as information indicating that measurements will not be performed (during a portion of a periodic period associated with the measurement), or the like. The terminal 200 may be notified of the skipping or disabling of RRM measurement occasions by receiving the semi-static notification from the base station 100, and may determine which RRM measurement occasions to skip and / or which RRM measurement occasions not to skip based on the semi-static notification.

[0214] This RRM measurement skip or disabling pattern may be applied to one or more of the following Alt a to Alt g: Alt a: All configured RRM measurement configurations Alt b: Intra-frequency RRM measurements or inter-frequency RRM measurements Alt c: SSB-based RRM measurements or CSI-RS-based RRM measurements Alt d: RRM measurements with or without measurement gaps Alt e: Configured RRM measurement configuration for one or more certain cells (one or more certain cells may be configured by RRC or may be predefined by a standard (e.g., Pcell / Pscell / Scell, cells in FR1 / FR2, etc.)) Alt f: List of configured RRM measurement configurations Alt g: RRM measurement configuration for a specific purpose or an RRM measurement configuration with a specific priority value

[0215] Option 2-2: Skipping or disabling of RRM measurement occasions may be notified by dynamic notification. Dynamic notification (e.g., DCI or MAC CE) may notify skipping or disabling of RRM measurement for multiple RRM measurement configurations. Dynamic notification may be referred to as information indicating that measurements will not be performed (during a portion of the periodic period associated with the measurement). The terminal 200 may be notified of the skipping / disabling of RRM measurement occasions by receiving the dynamic notification from the base station 100, and may determine which RRM measurement occasions to skip and which RRM measurement occasions not to skip based on the dynamic notification. The dynamic notification may follow the following options 2-2-1, 2-2-2, 2-2-3, and 2-2-4.

[0216] Option 2-2-1 As explained in Alt 2-1 of Proposal 2, the DCI or MAC CE may indicate the skipping of N consecutive RRM measurement occasions (N is an integer equal to or greater than 1).

[0217] As an example of option 2-2-1, the first RRM measurement occasion to be skipped may be the first RRM measurement occasion X symbols / slots after the last symbol / slot of the DCI for the notification (or the HARQ-ACK for the PDSCH corresponding to the MAC CE for the notification). In this way, terminal 200 may determine the first RRM measurement occasion to be skipped based on the DCI / MAC CE. The value of X may be defined by a standard, may be set by RRC, or may be notified by the DCI / MAC CE for the notification.

[0218] The value of N may also be defined by a standard (for example, N=1), may be set by the RRC, or may be notified by the DCI / MAC CE for notification.

[0219] An RRM measurement occasion that is not included in the N consecutive RRM measurement occasions is not skipped, and the terminal 200 needs to perform RRM measurements in the non-skipped RRM measurement occasions, and the scheduling restrictions defined in the current standard apply to the non-skipped RRM measurement occasions. In the N consecutive RRM measurement occasions, the terminal 200 may not perform RRM measurements and may receive / transmit DL / UL channels / signals.

[0220] Option 2-2-2 As described in Alt 2-2 of Proposal 2, the DCI or MAC CE may indicate skipping of RRM measurement occasions within a skip window. The skip window may also be referred to as a no-measurement period, a period during which measurements are not performed, etc.

[0221] As an example of option 2-2-2, the start of the skip window may be X symbols / slots after the last symbol / slot of the DCI for notification (or HARQ-ACK for the PDSCH corresponding to the MAC CE for notification). In this manner, terminal 200 may determine the start of the skip window based on the DCI / MAC CE. The value of X may be defined by a standard, may be set by RRC, or may be notified by the DCI / MAC CE for notification.

[0222] Furthermore, the length of the skip window may also be defined by a standard, may be set by the RRC, or may be notified by the DCI / MAC CE for notification.

[0223] The RRM measurement occasions not included in the skip window are not skipped, and the terminal 200 must perform RRM measurements in the non-skipped RRM measurement occasions, and the scheduling restrictions defined in the current standard apply to the non-skipped RRM measurement occasions. In the RRM measurement occasions included in the skip window, the terminal 200 may not perform RRM measurements and may receive / transmit DL / UL channels / signals.

[0224] Option 2-2-3 As described in Alt 2-3 of Proposal 2, the DCI or MAC CE may indicate whether to skip or not skip each of N consecutive RRM measurement occasions (N is an integer equal to or greater than 1).

[0225] As an example of Option 2-2-3, the DCI or MAC CE may signal (may include) a bitmap in which each bit indicates whether a corresponding RRM measurement occasion among the indicated N consecutive RRM measurement occasions is skipped or not. A bit value of "0" may indicate "not skipped," and a bit value of "1" may indicate "skip," or a bit value of "1" may indicate "not skipped," and a bit value of "0" may indicate "skip." For an RRM measurement occasion indicated as "skipped," the terminal 200 does not perform RRM measurement during the RRM measurement occasion, and scheduling restrictions defined in the current standard are not applied, and the terminal 200 may receive / transmit DL / UL channels / signals. On the other hand, for an RRM measurement occasion indicated as "not skipped," the terminal 200 must perform RRM measurement during the RRM measurement occasion, and scheduling restrictions defined in the current standard are applied during non-skipped RRM measurement occasions.

[0226] The first RRM measurement occasion of the N consecutive RRM measurement occasions may be determined to be the first RRM measurement occasion X symbols / slots after the last symbol / slot of the DCI for the notification (or the HARQ-ACK for the PDSCH corresponding to the MAC CE for the notification). In this manner, terminal 200 may determine the first RRM measurement occasion to be skipped based on the DCI / MAC CE. The value of X may be defined by a standard, may be set by RRC, or may be notified by the DCI / MAC CE for the notification.

[0227] Furthermore, the value of N may also be defined by a standard, may be set by the RRC, or may be notified by the DCI / MAC CE for notification.

[0228] Option 2-2-4 As described in Alt 2-4 of Proposal 2, the DCI or MAC CE may notify that the configured RRM measurements are disabled until the terminal 200 receives another DCI or MAC CE that enables the RRM measurements. In other words, when the terminal 200 receives a DCI or MAC CE that disables the RRM measurements, the terminal 200 may continue the disabled RRM measurements until it receives another DCI or MAC CE that enables the RRM measurements.

[0229] As an example of option 2-2-4, when terminal 200 detects or receives a DCI or MAC CE from base station 100 notifying that RRM measurements will be disabled, terminal 200 may determine to disable RRM measurements X symbols / slots after the last symbol / slot of the DCI for the notification (or a HARQ-ACK for a PDSCH corresponding to the MAC CE for the notification). The value of X may be defined by a standard, may be set by RRC, or may be notified by the DCI / MAC CE for the notification.

[0230] When RRM measurement is disabled and terminal 200 detects or receives, from base station 100, a (different) DCI or MAC CE notifying that RRM measurement is to be enabled, terminal 200 may determine to enable RRM measurement Y symbols / slots after the last symbol / slot of the (different) DCI for notification (or a HARQ-ACK for a PDSCH corresponding to the (different) MAC CE for notification). The value of Y may be defined by a standard, may be set by RRC, or may be notified by the (different) DCI / MAC CE for notification.

[0231] The dynamic notification may apply to one or more of the following Alt h to Alt n: Alt h: all configured RRM measurement configurations Alt i: intra-frequency or inter-frequency RRM measurements Alt j: SSB-based or CSI-RS-based RRM measurements Alt k: RRM measurements with or without measurement gaps Alt l: configured RRM measurement configuration for one or more certain cells (one or more certain cells may be configured by RRC or may be predefined by the standard (e.g. Pcell / Pscell / Scell, cells in FR1 / FR2, etc.)) Alt m: list of configured RRM measurement configurations Alt n: RRM measurement configuration for a specific purpose or an RRM measurement configuration with a specific priority value

[0232] In this application, RRM measurement occasions, SMTC windows, SSB symbols, CSI-RS symbols, etc. may also be referred to as periods or intervals associated with measurements, periods or intervals for measurements, measurement periods or intervals, etc.

[0233] <Operation Example> Next, an operation example of the terminal 200 will be described with reference to FIG.

[0234] In step S51, the terminal 200 receives first information related to measurement using a measurement signal from the base station 100. For example, the first information may be an RRM measurement configuration information element (e.g., MeasConfig IE), which is an existing RRC parameter, or a (new) information element similar to the information element.

[0235] In step S52, the terminal 200 periodically sets a period associated with measurement using the measurement signal based on the received first information.

[0236] In step S53, terminal 200 receives second information indicating that measurement will not be performed during a portion of the periodic period from base station 100. For example, the second information may be the semi-static notification described in Option 1-1 / 2-1 / dynamic notification described in Option 1-2 / 2-2.

[0237] In step S54, the terminal 200 performs reception or transmission of signals to or from the base station without performing measurements during a part of the periodic period based on the received second information.

[0238] As described above, according to Proposal 5, RRM measurements (opportunities) can be skipped or disabled based on semi-static / dynamic notifications from the base station, thereby reducing the impact caused by scheduling restrictions on measurements.

[0239] <Proposal 6> Proposal 6 describes support for terminals to report requests / notifications to skip or disable RRM measurements.

[0240] The terminal 200 may report a request / notification to skip or disable RRM measurement to the base station 100 via UCI / MAC CE on the PUCCH / PUSCH. When reporting via the PUCCH / PUSCH, the PUCCH / PUSCH resource for the terminal 200 to report the request / notification to skip or disable RRM measurement may be configured by RRC or may be notified by scheduling DCI. The request / notification to skip or disable RRM measurement may be referred to as information indicating that measurement will not be performed (during a part of the periodic period associated with the measurement), or the like.

[0241] The reporting of the request / notification to skip or disable RRM measurements may be periodic, semi-persistent, aperiodic, and / or event-triggered. When such reporting is event-triggered, the event may be, for example, an event indicating a situation in which measurements do not need to be performed. For example, the event may be a predetermined number of measurement periods (e.g., SMTC windows) in which the measured reception quality of a measurement signal (e.g., SSB) falls within a predetermined range, or a predetermined number of consecutive measurement periods in which the measured reception quality of a measurement signal falls within a predetermined range.

[0242] The report content and reporting procedure may follow options 1 / 2 / 3 below.

[0243] [Option 1] The terminal 200 may report a request to trigger skipping or disabling of RRM measurement to the base station 100. After the terminal 200 reports this request to the base station 100, the terminal 200 may monitor / receive a notification from the base station 100 notifying the base station 100 of skipping or disabling the RRM measurement (the notification may be transmitted from the base station 100). In option 1, how to skip the RRM measurement may depend on the notification from the base station 100. That is, the base station 100 may notify the terminal 200 how to skip the RRM measurement (the terminal 200 may be notified by the base station 100 how to skip the RRM measurement).

[0244] The notification by the base station 100 of how to skip the RRM measurements may follow the above-mentioned Proposal 5. That is, the operation of the terminal 200 when skipping the RRM measurements may follow the notification from the base station 100 as explained in the above-mentioned Proposal 5.

[0245] 16 , after transmitting the request to the base station 100, the terminal 200 receives a notification on how to skip the RRM measurement. Then, the terminal 200 skips the RRM measurement opportunity based on the notification from the base station 100.

[0246] [Option 2] The terminal 200 may report a request to skip or disable RRM measurements and information on requested / offered skip opportunities (RRM measurement opportunities to skip) to the base station 100. In this case, the terminal 200 also requests / offers RRM measurement gap opportunities to skip.

[0247] In option 2, either a notification from the base station 100 on how to skip the RRM measurements or a confirmation from the base station 100 confirming (accepting, approving) the request to skip or disable the RRM measurements is required. In the former case, the terminal 200 skips the RRM measurement occasion according to the notification from the base station 100, and in the latter case, the terminal 200 skips the RRM measurement occasion as requested / submitted by the terminal 200. This will be described later with reference to Figures 17 and 18.

[0248] The content of the request by the terminal 200 may include one or more of the following options 2-a to 2-d.

[0249] Option 2-a: Skipping N consecutive RRM measurement occasions (N is an integer equal to or greater than 1). The first RRM measurement occasion to be skipped may be the first RRM measurement occasion X symbols / slots after the last symbol / slot of the request (e.g., PUCCH / PUSCH / MAC CE corresponding to the request). Terminal 200 may determine the first RRM measurement occasion to be skipped in this manner. The value of X may be defined by a standard, may be set by RRC, or may be notified by the request.

[0250] The value of N may also be defined by the standard (for example, N=1), may be set by the RRC, or may be notified by the request.

[0251] Option 2-b: Skipping RRM Measurement Occasions within the Skip Window The start of the skip window may be X symbols / slots after the last symbol / slot of the request (e.g., the PUCCH / PUSCH / MAC CE corresponding to the request). Terminal 200 may determine the start of the skip window in this manner. The value of X may be defined by a standard, configured by RRC, or signaled by the request.

[0252] The length of the skip window may also be defined by the standard, set by the RRC, or notified by the request.

[0253] Option 2-c: Skip pattern regarding whether to skip or not skip each of N consecutive RRM measurement occasions (N is an integer equal to or greater than 1). The request may signal (or include) a bitmap in which each bit indicates whether to skip or not skip a corresponding RRM measurement occasion among the signaled N consecutive RRM measurement occasions. A bit value of "0" may indicate "not skip (not skipped)" and a bit value of "1" may indicate "skip (skipped)", or alternatively, a bit value of "1" may indicate "not skip (not skipped)" and a bit value of "0" may indicate "skip (skipped)".

[0254] The first RRM measurement occasion of the N consecutive measurement gap occasions may be the first RRM measurement occasion X symbols / slots after the last symbol / slot of the request (e.g., the PUCCH / PUSCH / MAC CE corresponding to the request). Terminal 200 may determine the first RRM measurement occasion to be skipped in this manner. The value of X may be defined by a standard, configured by RRC, or signaled by the request.

[0255] The value of N may also be defined by the standard, set by the RRC, or notified by the request.

[0256] Option 2-d: The terminal 200 may notify that the configured RRM measurements are to be disabled (remain in a disabled state) until a request to enable the RRM measurements is transmitted. The request to enable the RRM measurements may be referred to as information indicating that the measurements will be performed (in (another) part of the periodic period associated with the measurements), or the like.

[0257] Terminal 200 may determine to disable RRM measurement occasions X symbols / slots after the request (e.g., PUCCH / PUSCH / MAC CE corresponding to the request). The value of X may be defined by a standard, may be configured by RRC, or may be notified by the DCI / MAC CE for the notification.

[0258] When RRM measurement is disabled and terminal 200 transmits a (separate) request to enable RRM measurement, terminal 200 may determine to enable RRM measurement occasions Y symbols / slots after the last symbol / slot of the (separate) request (e.g., PUCCH / PUSCH / MAC CE corresponding to the (separate) request). The value of Y may be defined by a standard, may be configured by RRC, or may be signaled by the (separate) request.

[0259] Modifications of Options 2-a / 2-b / 2-c / 2-d The content of the request by the terminal 200 may be for one or more of the following Alt 1 to Alt 3.

[0260] The content of the request by the Alt 1 terminal 200 may be for all RRM measurement configurations / types.

[0261] The content of the request by the Alt 2 terminal 200 may be for one or more specific RRM measurement configurations, and one or more target RRM measurement configurations may be included in the request.

[0262] ...Alt 3 The content of the request by the terminal 200 may be for a specific RRM measurement type (e.g., intra-frequency RRM measurement or inter-frequency RRM measurement, SSB-based RRM measurement or CSI-RS-based RRM measurement, RRM measurement with measurement gap or RRM measurement without measurement gap, RRM measurement in FR1 or RRM measurement in FR2, etc.).

[0263] After the terminal 200 reports a request to skip or disable RRM measurements (e.g., a request according to option 2-a / 2-b / 2-c / 2-d) to the base station 100, the operation of the terminal 200 may be according to option 2-1 / 2-2 below.

[0264] Option 2-1: The terminal 200 may be assumed to monitor / receive a notification from the base station 100 notifying the terminal 200 of skipping or disabling the RRM measurement (the notification is transmitted from the base station 100). In option 2-1, how to skip the RRM measurement may depend on the notification from the base station 100. That is, the base station 100 may notify the terminal 200 how to skip the RRM measurement (the terminal 200 may be notified by the base station 100 how to skip the RRM measurement).

[0265] The notification by the base station 100 of how to skip RRM measurements may follow the above-mentioned proposal 5. That is, the operation of the terminal 200 when skipping an RRM measurement occasion may follow the notification from the base station 100 as explained in the above-mentioned proposal 5.

[0266] 17 , after transmitting the request to the base station 100, the terminal 200 receives a notification of how to skip the RRM measurement from the base station 100. Then, the terminal 200 skips the RRM measurement opportunity based on the notification from the base station 100.

[0267] Option 2-2: The terminal 200 may expect to monitor / receive (i.e., receive from the base station 100) a confirmation confirming (accepting, approving) the request to skip or disable RRM measurements. If the terminal 200 receives this confirmation (in the monitoring window), it may skip the RRM measurement occasion as requested. On the other hand, if the terminal 200 does not receive this confirmation (in the monitoring window), it cannot skip the RRM measurement occasion as requested.

[0268] The monitoring window mentioned above may be determined as follows: The start of the monitoring window may be the first symbol / slot after K symbols / slots of the request, or the first PDCCH monitoring symbol / slot (for a particular search space type or for a particular DCI format) after the request. The length of the monitoring window may be defined by the standard, configured by RRC, or reported in the request.

[0269] For example, as shown in Figure 18, after the terminal 200 transmits the request to the base station 100, it receives a confirmation from the base station 100. Then, the terminal 200 skips the RRM measurement occasion as requested (proposed) (e.g., based on the requested (proposed) skip pattern).

[0270] As a variation of option 2-2, if the request by the terminal 200 is for multiple RRM measurement configurations / types, the confirmation by the base station 100 may be in accordance with Alt 1 / 2 below.

[0271] Alt 1: A single confirmation only needs to be applied to requests for multiple RRM measurement configurations / types.

[0272] Alt 2: The terminal 200 may expect (receive) confirmation for each RRM measurement configuration / type.

[0273] [Option 3] The terminal 200 may report a notification to skip or disable the RRM measurement occasion to the base station 100. In option 3, a notification from the base station 100 on how to skip the RRM measurement or a confirmation from the base station 100 to confirm (accept, approve) the request to skip or disable the RRM measurement is not required, and the terminal 200 may skip the RRM measurement occasion as notified by the terminal 200.

[0274] The content of the notification by the terminal 200 may include one or more of Options 2-a to 2-d (including variations) of the above-mentioned Proposal 6. Here, in Options 2-a to 2-d of the above-mentioned Proposal 6, "request" may be replaced with "notification."

[0275] The operation of the terminal 200 after reporting a notification to the base station 100 to skip or disable RRM measurements (e.g., a notification according to option 2-a / 2-b / 2-c / 2-d of Proposal 6 described above) may be as follows.

[0276] For RRM measurement occasions notified as "skipped / disabled", the terminal 200 does not perform RRM measurements at the RRM measurement occasion, and scheduling restrictions defined in the current standard do not apply to the measured symbol or to the symbols within the SMTC window period. If the RRM measurement does not involve a measurement gap, the terminal 200 may receive DL channels / signals at the SSB / CSI-RS symbol being measured (within the SMTC window) and may receive / transmit DL / UL channels / signals at all symbols within the SMTC window period.

[0277] For RRM measurement occasions notified as "not skipped / enabled", the terminal 200 must perform RRM measurements at that RRM measurement occasion, and for non-skipped RRM measurement occasions, the scheduling restrictions defined in the current standard apply.

[0278] For example, as shown in FIG. 19, after the terminal 200 transmits the notification to the base station 100, it skips the RRM measurement occasion as notified (e.g., based on the notified skip pattern) without receiving any notification or confirmation from the base station 100.

[0279] [Variations of Options 1 / 2 / 3] When multiple RRM measurement configurations / types exist, the terminal 200 may report a request / instruction to the base station 100 without details regarding the RRM measurement configuration / type that the request / notification to skip or disable RRM measurement is for (the terminal 200 may report a request / notification to skip or disable RRM measurement for all of the multiple RRM measurement configurations / types to the base station 100), or may also report information regarding the target RRM measurement configuration or specific RRM measurement type that is intended to be skipped or disabled (e.g., intra-frequency RRM measurement or inter-frequency RRM measurement, SSB-based RRM measurement or CSI-RS-based RRM measurement, RRM measurement with measurement gap or RRM measurement without measurement gap, RRM measurement in FR1 or RRM measurement in FR2, etc.) to the base station 100.

[0280] In this application, RRM measurement occasions, SMTC windows, SSB symbols, CSI-RS symbols, etc. may also be referred to as periods or intervals associated with measurements, periods or intervals for measurements, measurement periods or intervals, etc.

[0281] <Operation Example> Next, an operation example of the terminal 200 will be described with reference to FIG.

[0282] In step S61, the terminal 200 receives first information related to measurement using a measurement signal from the base station 100. For example, the first information may be an existing RRM measurement configuration information element (e.g., MeasConfig IE) that is an RRC parameter, or a (new) information element similar to the existing information element.

[0283] In step S62, the terminal 200 periodically sets a period associated with measurement using the measurement signal based on the received first information.

[0284] In step S63, the terminal 200 transmits second information indicating that the measurement will not be performed to the base station 100. For example, the second information may be the request described in Option 1 / 2 / the notification described in Option 3.

[0285] In step S64, in response to the transmission of the second information in step S63, the terminal 200 does not perform measurements and performs signal reception or transmission with the base station during part or another part of the periodic period.

[0286] Between steps S63 and S64, as described in option 1 / 2-1, the base station 100 may send to the terminal 200 a notification of how to skip the periodic period (information indicating that measurements will not be performed for part of the periodic period), or as described in option 2-2, the base station 100 may send to the terminal 200 a confirmation that measurements will not be performed for part of the periodic period, or as described in option 3, no communication may occur between the terminal 200 and the base station 100.

[0287] As described above, according to Proposal 6, RRM measurements (opportunities) can be skipped or disabled in response to a request / notification from the terminal, thereby reducing the impact caused by scheduling restrictions on measurements.

[0288] <UE capability> UE capability indicating the capabilities of a terminal may include the following information indicating the capabilities of the terminal. Terminal 200 may report the following information indicating the capabilities of the terminal to base station 100. Note that the information indicating the capabilities of the terminal may correspond to information defining the capabilities of the terminal.

[0289] Information defining whether the terminal supports prioritizing channel / signal transmission / reception over RRM measurements based on one or more specific conditions. Information defining whether the terminal supports skipping or disabling measurement gaps based on notification by the base station. Information defining whether the terminal supports reporting (periodically / semi-persistently / aperiodically / event-triggered) a request / notification to skip or disable measurement gaps (in PUCCH / PUSCH / MAC CE). Information defining whether the terminal supports periodic / semi-persistent / periodic measurement gaps. Information defining whether the terminal supports skipping or disabling RRM measurements based on notification by the base station. Information defining whether the terminal supports reporting (periodically / semi-persistently / aperiodically / event-triggered) a request / notification to skip or disable RRM measurements (in PUCCH / PUSCH / MAC CE). Information defining the minimum processing time for processing notifications / confirmations of skipped or disabled measurement gap opportunities / RRM measurement occasions (e.g., "X" in X symbols / slots, "K" in K symbols / slots, etc., as described above)

[0290] In the above, an example has been described in which notifications, requests (skip patterns, etc.) to skip or disable measurement gaps (opportunities) or RRM measurements (opportunities) are exchanged between base station 100 and terminal 200, but notifications, requests (skip patterns, etc.) to not skip or enable measurement gaps (opportunities) or RRM measurements (opportunities) may also be exchanged.

[0291] Next, the configurations of the base station 100 and the terminal 200 will be described. Note that the configurations of the base station 100 and the terminal 200 described below are examples of functions related to this embodiment. The base station 100 and the terminal 200 may have functions not shown. Furthermore, the functional divisions and / or names of the functional units are not limited as long as the functions perform the operations related to this embodiment.

[0292] <Configuration of Base Station> Fig. 26 is a block diagram showing an example of the configuration of base station 100 according to this embodiment. Base station 100 includes, for example, a transmitting unit 101, a receiving unit 102, and a control unit 103. Base station 100 communicates with terminal 200 (see Fig. 27) wirelessly.

[0293] The transmitter 101 transmits a downlink (DL) signal to the terminal 200. For example, under the control of the controller 103, the transmitter 101 transmits a DL signal (for example, the above-mentioned RRC, SIB, MAC CE, DCI, notification, confirmation, etc.).

[0294] The DL signal may include, for example, a downlink data signal and control information (e.g., Downlink Control Information (DCI)). The DL signal may also include information indicating scheduling related to signal transmission of terminal 200 (e.g., an UL grant). The DL signal may also include control information of higher layers (e.g., control information of Radio Resource Control (RRC)). The DL signal may also include a reference signal.

[0295] The channels used for transmitting DL signals include, for example, a downlink data channel and a downlink control channel. For example, the downlink data channel may include a PDSCH (Physical Downlink Shared Channel), and the downlink control channel may include a PDCCH (Physical Downlink Control Channel). For example, the base station 100 transmits downlink control information to the terminal 200 using the PDCCH and transmits downlink data signals using the PDSCH.

[0296] The reference signal included in the DL signal may include at least one of a demodulation reference signal (Demodulation Reference Signal (DMRS)), a Phase Tracking Reference Signal (PTRS), a Channel State Information-Reference Signal (CSI-RS), a Sounding Reference Signal (SRS), and a Positioning Reference Signal (PRS) for position information. For example, reference signals such as DMRS and PTRS are used for demodulating downlink data signals and are transmitted using the PDSCH.

[0297] The receiving unit 102 receives an uplink (UL) signal transmitted from the terminal 200. For example, the receiving unit 102 receives an UL signal (for example, the above-mentioned request, notification, etc.) under the control of the control unit 103.

[0298] The transmitting unit 101 and the receiving unit 102 may be collectively referred to as a communication unit.

[0299] The control unit 103 controls the communication operations of the base station 100 , including the transmission processing of the transmission unit 101 and the reception processing of the reception unit 102 .

[0300] For example, the control unit 103 acquires information such as data and control information from the upper layer and outputs it to the transmitting unit 101. The control unit 103 also outputs the data, control information, etc. received from the receiving unit 102 to the upper layer.

[0301] For example, the control unit 103 allocates resources (or channels) used for transmitting and receiving DL signals and / or resources used for transmitting and receiving UL signals based on signals (e.g., data and control information, etc.) received from the terminal 200 and / or data and control information, etc. acquired from a higher layer. Information on the allocated resources may be included in control information transmitted to the terminal 200.

[0302] 27 is a block diagram showing an example of the configuration of terminal 200 according to this embodiment. Terminal 200 includes, for example, a receiving unit 201, a transmitting unit 202, and a control unit 203. Terminal 200 communicates with base station 100, for example, wirelessly.

[0303] In relation to Proposal 1, for example, when the timing of receiving a signal overlaps with a period (measurement gap opportunity, SMTC window, etc.) associated with a measurement (SSB measurement, etc.) using a measurement signal (SSB, etc.), the receiving unit 201 may receive a signal from the base station 100 at the above timing in accordance with the judgment of the control unit 203.

[0304] In relation to Proposal 2, for example, the receiver 201 may receive, from the base station 100, first information (e.g., RRC) regarding an extended period (e.g., measurement gap opportunity) for measurements (e.g., SSB measurements) using measurement signals (e.g., SSB). For example, the receiver 201 may receive, from the base station 100, second information (e.g., RRC, SIB, MAC CE, DCI) indicating that measurements will not be performed during a portion of the periodic extended period. For example, after receiving the second information, the receiver 201 may receive, from the base station 100, information (e.g., MAC CE, DCI) indicating that measurements will be performed during another portion of the periodic extended period. The receiver 201 may receive a signal from the base station 100 during a portion of the periodic extended period.

[0305] In relation to Proposal 3, for example, the receiver 201 may receive, from the base station 100, first information (e.g., RRC) regarding an extended period (e.g., measurement gap opportunity) for measurements (e.g., SSB measurements) using measurement signals (e.g., SSB). For example, the receiver 201 may receive, from the base station 100, third information (e.g., RRC, SIB, MAC CE, DCI) indicating that measurements will not be performed during a portion of the periodic extended period after second information (e.g., request) is transmitted to the base station 100. For example, the second information (e.g., request) may indicate that measurements will not be performed during a portion or another portion of the periodic extended period, and the receiver 201 may receive, from the base station 100, fourth information (e.g., RRC, SIB, MAC CE, DCI) indicating that measurements will not be performed during a portion of the periodic extended period after the second information is transmitted to the base station 100. For example, the second information (a skip pattern, etc. and a request) may indicate that measurements will not be performed during a portion of the periodic extended period, and the receiving unit 201 may receive, after the second information is transmitted to the base station 100, fourth information (RRC, SIB, MAC CE, DCI, etc.) from the base station 100 indicating that measurements will not be performed during a portion of the periodic extended period. For example, the second information (a skip pattern, etc. and a request) may indicate that measurements will not be performed during a portion of the periodic extended period, and the receiving unit 201 may receive, after the second information is transmitted to the base station 100, fifth information (a confirmation, etc.) from the base station 100 confirming that measurements will not be performed during a portion of the periodic extended period. For example, the receiving unit 201 may receive a signal during a portion of the periodic extended period from the base station 100 based on the third information, the fourth information, the second information, and the fifth information. For example, the second information (notification of a skip pattern, etc.) may indicate that measurements will not be performed during part of the periodic extended period, and the receiving unit 201 may receive a signal from the base station 100 during part of the periodic extended period based on the second information.

[0306] In relation to Proposal 4, for example, the receiver 201 may receive, from the base station 100, first information (e.g., RRC) regarding an extended period (e.g., measurement gap opportunity) for measurements (e.g., SSB measurements) using measurement signals (e.g., SSB). For example, the receiver 201 may receive, from the base station 100, second information (e.g., MAC CE, DCI) indicating activation of the extended period. For example, the receiver 201 may not receive signals in the periodic extended period from the base station 100 based on the second information. For example, the receiver 201 may receive, from the base station 100, third information (e.g., MAC CE, DCI) indicating deactivation of the extended period. For example, the receiver 201 may receive signals in the periodic extended period from the base station 100 based on the third information. For example, the receiving unit 201 may receive fourth information (MAC CE, DCI, etc.) indicating activation of an extended period from the base station 100. For example, the receiving unit 201 may receive a signal in one extended period from the base station 100 based on the fourth information.

[0307] In relation to Proposal 5, for example, the receiver 201 may receive, from the base station 100, first information (such as an RRC) regarding measurements (such as SSB measurements) using measurement signals (such as an SSB). For example, the receiver 201 may receive, from the base station 100, second information (such as an RRC, SIB, MAC CE, or DCI) indicating that measurements will not be performed during a portion of a periodic period (such as an SMTC window) associated with the measurements. For example, after receiving the second information, the receiver 201 may receive, from the base station 100, information (such as a MAC CE or DCI) indicating that measurements will be performed during another portion of the periodic period. The receiver 201 may receive a signal from the base station 100 during a portion of the periodic period.

[0308] In relation to Proposal 6, for example, the receiver 201 may receive, from the base station 100, first information (e.g., RRC) regarding measurements (e.g., SSB measurements) using measurement signals (e.g., SSB). For example, after second information (e.g., a request) is transmitted to the base station 100, the receiver 201 may receive, from the base station 100, third information (e.g., RRC, SIB, MAC CE, DCI) indicating that measurements will not be performed during a portion of a periodic period (e.g., an SMTC window) associated with the measurements. For example, the second information (e.g., a request) may indicate that measurements will not be performed during a portion of the periodic period or another portion, and after the second information is transmitted to the base station 100, the receiver 201 may receive, from the base station 100, fourth information (e.g., RRC, SIB, MAC CE, DCI) indicating that measurements will not be performed during a portion of the periodic period. For example, the second information (a skip pattern or the like and a request) may indicate that measurement will not be performed during a portion of the periodic period, and the receiving unit 201 may receive, after the second information is transmitted to the base station 100, fourth information (RRC, SIB, MAC CE, DCI, or the like) from the base station 100 indicating that measurement will not be performed during a portion of the periodic period. For example, the second information (a skip pattern or the like and a request) may indicate that measurement will not be performed during a portion of the periodic period, and the receiving unit 201 may receive, after the second information is transmitted to the base station 100, fifth information (a confirmation, or the like) from the base station 100 confirming that measurement will not be performed during a portion of the periodic period. For example, the receiving unit 201 may receive a signal during a portion of the periodic period from the base station 100 based on the third information, the fourth information, the second information, and the fifth information. For example, the second information (a skip pattern or the like and a notification) may indicate that measurement will not be performed during a portion of the periodic period, and the receiving unit 201 may receive a signal during a portion of the periodic period from the base station 100 based on the second information.

[0309] The transmitting unit 202 transmits an UL signal to the base station 100. For example, under the control of the control unit 203, the transmitting unit 202 transmits an UL signal (for example, the above-mentioned request, notification, etc.).

[0310] In relation to Proposal 1, for example, when the timing of transmitting a signal overlaps with a period (measurement gap opportunity, SMTC window, etc.) associated with a measurement (SSB measurement, etc.) using a measurement signal (SSB, etc.), the transmitting unit 202 may transmit a signal to the base station 100 at the above timing in accordance with the judgment of the control unit 203.

[0311] In relation to Proposal 2, for example, the transmitter 202 may transmit a signal to the base station 100 during part of a periodic extended period (such as a measurement gap opportunity) for measurements (such as SSB measurements) using a measurement signal (such as SSB).

[0312] In relation to Proposal 3, for example, the transmitter 202 may transmit second information to the base station 100 indicating that measurements (such as SSB measurements) using measurement signals (such as SSB) will not be performed. For example, the transmitter 202 may transmit a signal to the base station 100 during a portion of a periodic extended period for measurements (such as a measurement gap opportunity) based on the third information, the fourth information, the second information, and the fifth information. The second information may indicate that measurements will not be performed during a portion of the periodic extended period, and the transmitter 202 may not transmit a signal to the base station 100 during a portion of the periodic extended period based on the second information.

[0313] In relation to Proposal 4, for example, the transmitter 202 may not transmit a signal to the base station 100 in a periodic extended period (e.g., measurement gap opportunity) for measurements (e.g., SSB measurements) using a measurement signal (e.g., SSB) based on the second information. For example, the transmitter 202 may transmit a signal to the base station 100 in a periodic extended period based on the third information. For example, the transmitter 202 may not transmit a signal to the base station 100 in one extended period based on the fourth information.

[0314] In relation to Proposal 5, for example, the transmitter 202 may transmit a signal to the base station 100 during a portion of a periodic period (such as an SMTC window) associated with measurements (such as SSB measurements) using a measurement signal (such as SSB).

[0315] In relation to Proposal 6, for example, the transmitter 202 may transmit second information to the base station 100 indicating that measurements (such as SSB measurements) using measurement signals (such as SSB) will not be performed. For example, the transmitter 202 may transmit a signal to the base station 100 during a portion of a periodic period (such as an SMTC window) associated with measurements (such as SSB measurements) using measurement signals (such as SSB) based on the third information, the fourth information, the second information, and the fifth information. The second information may indicate that measurements will not be performed during a portion of the periodic period, and the transmitter 202 may not transmit a signal to the base station 100 during a portion of the extended periodic period based on the second information.

[0316] The UL signal may include, for example, an uplink data signal and control information (e.g., UCI). For example, information related to the processing capability of the terminal 200 (e.g., UE capability) may be included. The UL signal may also include a reference signal.

[0317] Channels used for transmitting UL signals include, for example, an uplink data channel and an uplink control channel. For example, the uplink data channel includes a PUSCH (Physical Uplink Shared Channel), and the uplink control channel includes a PUCCH (Physical Uplink Control Channel). For example, terminal 200 transmits uplink control information to base station 100 using the PUCCH and transmits uplink data signals using the PUSCH.

[0318] The reference signals included in the UL signal may include, for example, at least one of DMRS, PTRS, CSI-RS, SRS, and PRS. For example, the reference signals such as DMRS and PTRS are used for demodulating the uplink data signal and are transmitted using an uplink channel (for example, PUSCH).

[0319] The receiving unit 201 and the transmitting unit 202 may be collectively referred to as a communication unit.

[0320] The control unit 203 controls the communication operations of the terminal 200 , including the reception processing in the receiving unit 201 and the transmission processing in the transmitting unit 202 .

[0321] For example, the control unit 203 acquires information such as data and control information from the upper layer and outputs it to the transmitting unit 202. Also, the control unit 203 outputs, for example, the data and control information received from the receiving unit 201 to the upper layer.

[0322] For example, the control unit 203 controls transmission of information to be fed back to the base station 100. The information to be fed back to the base station 100 may include, for example, HARQ-ACK, Channel State Information (CSI), or a Scheduling Request (SR). The information to be fed back to the base station 100 may be included in UCI.

[0323] In relation to Proposal 1, for example, the control unit 203 may determine whether to receive or transmit a signal or perform measurement using a measurement signal when the timing of receiving or transmitting a signal overlaps with a period (measurement gap opportunity, SMTC window, etc.) associated with measurement (e.g., SSB measurement) using a measurement signal (e.g., SSB). For example, the control unit 203 may make the above determination based on information indicating the priority of the signal and the period and / or measurement, predefined conditions, etc. For example, the control unit 203 may further make the above determination when the signal is received or transmitted in a specific cell (e.g., Pcell) or carrier (e.g., CC).

[0324] In relation to Proposal 2, for example, the control unit 203 may periodically set an extended period (such as a measurement gap opportunity) for measurements (such as SSB measurements) using a measurement signal (such as SSB) based on the first information. For example, the control unit 203 may determine a portion of the periodic extended period during which measurements are not performed based on the second information, or may not perform measurements during the determined portion of the periodic extended period.

[0325] In relation to Proposal 3, for example, the control unit 203 may periodically set an extended period (such as a measurement gap opportunity) for measurements (such as SSB measurements) using a measurement signal (such as SSB) based on the first information. For example, the control unit 203 may determine a portion of the periodic extended period during which no measurements are performed based on the second information, the third information, the fourth information, or the second and fifth information, or may not perform measurements during the determined portion of the periodic extended period.

[0326] In relation to Proposal 4, for example, the control unit 203 may periodically set an extended period (e.g., measurement gap opportunity) for measurements (e.g., SSB measurements) using measurement signals (e.g., SSB) based on the first information. For example, the control unit 203 may activate the periodic extended period based on the second information. For example, the control unit 203 may deactivate the periodic extended period based on the third information. For example, the control unit 203 may activate the extended period based on the fourth information.

[0327] In relation to Proposal 5, for example, the control unit 203 may periodically set a period (such as an SMTC window) associated with measurements (such as SSB measurements) using a measurement signal (such as SSB) based on the first information. For example, the control unit 203 may determine a portion of the periodic period during which measurements are not performed based on the second information, or may not perform measurements during the determined portion of the periodic period.

[0328] In relation to Proposal 6, for example, the control unit 203 may periodically set a period (such as an SMTC window) associated with measurements (such as SSB measurements) using a measurement signal (such as SSB) based on the first information. For example, the control unit 203 may determine a portion of the periodic period during which measurements are not performed based on the second information, the third information, the fourth information, or the second and fifth information, or may not perform measurements during the determined portion of the periodic period.

[0329] Note that the channel used for transmitting the DL signal and the channel used for transmitting the UL signal are not limited to the above-mentioned example. For example, the channel used for transmitting the DL signal and the channel used for transmitting the UL signal may include a Random Access Channel (RACH) and a Physical Broadcast Channel (PBCH). The RACH may be used to transmit Downlink Control Information (DCI) including a Random Access Radio Network Temporary Identifier (RA-RNTI), for example.

[0330] The above configuration can reduce the impact of scheduling restrictions on measurements.

[0331] <Summary of the embodiment> As described above, in relation to Proposal 1, according to one aspect of the present disclosure, there is provided a terminal including: a control unit that, when a timing for receiving or transmitting a signal overlaps with a period associated with a measurement using a measurement signal, determines whether to receive or transmit the signal or perform the measurement using the measurement signal; and a communication unit that receives or transmits the signal at the timing in accordance with the determination.

[0332] The above configuration allows signal reception or transmission to take priority over measurements, thereby reducing the impact of scheduling restrictions on measurements.

[0333] In one example, the control unit determines whether to receive or transmit the signal or perform a measurement using the measurement signal based on information indicating the priority of the signal and the period and / or the measurement.

[0334] With the above configuration, it is possible to control whether to receive or transmit a signal or to perform a measurement by using priority as a control criterion.

[0335] In one example, the control unit determines whether to receive or transmit the signal or perform measurement using the measurement signal based on a predefined condition.

[0336] With the above configuration, no signal is exchanged between the terminal and the base station, so signaling overhead can be reduced.

[0337] In one example, the signal is received or transmitted in a particular cell.

[0338] With the above configuration, by limiting the signals of interest to signals in a specific cell, it is possible to reduce signaling overhead and perform measurements more appropriately depending on the cell.

[0339] In one example, the signal is received or transmitted on a particular carrier.

[0340] With the above configuration, by limiting the target signals to signals on a specific carrier, it is possible to reduce signaling overhead and perform measurements more appropriately according to the carrier.

[0341] According to one aspect of the present disclosure, a communication method is provided in which, when a terminal receives or transmits a signal and a period associated with a measurement using a measurement signal overlap, the terminal determines whether to receive or transmit the signal or perform a measurement using the measurement signal, and receives or transmits the signal at the timing in accordance with the determination.

[0342] The above configuration allows signal reception or transmission to take priority over measurements, thereby reducing the impact of scheduling restrictions on measurements.

[0343] Also, in relation to Proposal 2, according to one aspect of the present disclosure, a terminal is provided that includes a communication unit that receives first information regarding an extended period for measurements using measurement signals from a base station, and a control unit that periodically sets an extended period for measurements using the measurement signals based on the first information, wherein the communication unit receives second information from the base station indicating that the measurement will not be performed during part of the periodic extended period, and based on the second information, the control unit does not perform the measurement during part of the periodic extended period, and the communication unit receives or transmits signals between the base station and the terminal.

[0344] With the above configuration, based on the second information from the base station, it is possible to perform signal reception or transmission without performing measurements during part of the periodic extended period, thereby reducing the impact caused by scheduling restrictions on measurements.

[0345] In one example, the periodic portion of the extended period is N consecutive extended periods (N is an integer equal to or greater than 1).

[0346] With the above configuration, it is possible to avoid performing measurements during periods when it is not appropriate to perform measurements or when measurements are not necessary.

[0347] In one example, a portion of the periodic extended period is the extended period included in a measurement non-performance period.

[0348] With the above configuration, it is possible to avoid performing measurements during periods when it is not appropriate to perform measurements or when measurements are not necessary.

[0349] In one example, the second information includes third information indicating whether the measurement is to be performed or not to be performed during each of the consecutive extended periods, and a portion of the periodic extended period is the extended period corresponding to the third information indicating that the measurement is not to be performed during the consecutive extended periods.

[0350] The above configuration makes it possible to avoid performing measurements during periods of diverse patterns.

[0351] In one example, after receiving the second information, the communication unit receives fourth information from the base station indicating that the measurement is to be performed during another part of the extended periodic period, the part of the extended period being the extended period after receiving the second information and before receiving the fourth information.

[0352] The above arrangement allows dynamic control over whether measurements are performed or whether signal reception or transmission is performed over an extended period of time.

[0353] According to one aspect of the present disclosure, a communication method is provided in which a terminal receives first information from a base station regarding an extended period for measurements using a measurement signal, periodically sets an extended period for measurements using the measurement signal based on the first information, receives second information from the base station indicating that the measurement will not be performed during a portion of the periodic extended period, and based on the second information, does not perform the measurement during a portion of the periodic extended period and receives or transmits signals between the base station and the terminal.

[0354] With the above configuration, based on the second information from the base station, it is possible to perform signal reception or transmission without performing measurements during part of the periodic extended period, thereby reducing the impact caused by scheduling restrictions on measurements.

[0355] Also, in relation to Proposal 3, according to one aspect of the present disclosure, a terminal is provided that includes a communication unit that receives first information regarding an extended period for measurements using measurement signals from a base station, and a control unit that periodically sets an extended period for measurements using the measurement signals based on the first information, wherein the communication unit transmits second information to the base station indicating that the measurement will not be performed, and in response to the transmission of the second information, the control unit does not perform the measurement during part of the periodic extended period, and the communication unit receives or transmits signals between the base station.

[0356] With the above configuration, in response to transmission of the second information to the base station, it is possible to perform signal reception or transmission without performing measurements during part of the periodic extended period, thereby reducing the impact caused by scheduling restrictions on measurements.

[0357] In one example, after transmitting the second information, the communication unit receives third information from the base station indicating that the measurement will not be performed during part of the extended period, and based on the third information, the control unit does not perform the measurement during part of the extended period, and the communication unit receives or transmits signals between the base station and the base station.

[0358] With the above configuration, by using the third information from the base station as a control criterion, it is possible to execute signal reception or transmission during a part of the periodically extended period.

[0359] In one example, the second information indicates that the measurement will not be performed during part or another part of the periodic extended period, and after transmitting the second information, the communication unit receives fourth information from the base station indicating that the measurement will not be performed during part of the periodic extended period, and based on the fourth information, the control unit does not perform the measurement during part of the periodic extended period, and the communication unit receives or transmits signals to or from the base station.

[0360] With the above configuration, by using the fourth information from the base station as a control criterion, it is possible to execute signal reception or transmission during a part of the periodically extended period.

[0361] In one example, the second information indicates that the measurement will not be performed during a portion of the extended period, and after transmitting the second information, the communication unit receives fifth information confirming that the measurement will not be performed during a portion of the extended period, and based on the second information and the fifth information, the control unit does not perform the measurement during a portion of the extended period, and the communication unit receives or transmits signals to or from the base station.

[0362] With the above configuration, it is possible to receive or transmit a signal during a part of the periodically extended period based on the second information transmitted from the terminal and the fifth information from the base station.

[0363] In one example, the second information indicates that the measurement will not be performed during a portion of the extended period, and based on the second information, during a portion of the extended period, the control unit does not perform the measurement and the communication unit receives or transmits signals to or from the base station.

[0364] With the above configuration, the terminal can receive or transmit signals during a part of the periodically extended period as desired based on the second information transmitted from the terminal.

[0365] According to one aspect of the present disclosure, a communication method is provided in which a terminal receives first information from a base station regarding an extended period for measurements using a measurement signal, periodically sets an extended period for measurements using the measurement signal based on the first information, transmits second information to the base station indicating that the measurements will not be performed, and, in response to the transmission of the second information, does not perform the measurements during part of the periodic extended period and receives or transmits signals between the terminal and the base station.

[0366] With the above configuration, in response to transmission of the second information to the base station, it is possible to perform signal reception or transmission without performing measurements during part of the periodic extended period, thereby reducing the impact caused by scheduling restrictions on measurements.

[0367] Also, in relation to Proposal 4, according to one aspect of the present disclosure, a terminal is provided, comprising: a communication unit that receives first information regarding an extended period for measurements using measurement signals from a base station; and a control unit that periodically sets an extended period for measurements using the measurement signals based on the first information, wherein the communication unit receives second information from the base station indicating that the extended period is to be activated, and during the periodic extended period based on the second information, the control unit performs the measurements, and the communication unit does not receive or transmit signals between the base station and the terminal.

[0368] The above arrangement allows for extended periods of non-activation during which signal reception or transmission can be performed, thereby reducing the impact of scheduling restrictions on measurements.

[0369] In one example, the communication unit receives third information from the base station indicating that the extended period is to be deactivated, and based on the third information, during the periodic extended period, the control unit does not perform the measurement, and the communication unit receives or transmits signals between the base station and the base station.

[0370] The above arrangement allows for extended periods of non-activation during which signal reception or transmission can be performed, thereby reducing the impact of scheduling restrictions on measurements.

[0371] According to one aspect of the present disclosure, a terminal is provided, comprising: a communication unit that receives first information from a base station regarding an extended period for measurements using a measurement signal; and a control unit that periodically sets an extended period for measurements using the measurement signal based on the first information, wherein the communication unit receives second information from the base station indicating that the extended period is to be activated, and during one of the extended periods based on the second information, the control unit performs the measurements, and the communication unit does not receive or transmit signals between the base station and the terminal.

[0372] The above arrangement allows for extended periods of non-activation during which signal reception or transmission can be performed, thereby reducing the impact of scheduling restrictions on measurements.

[0373] According to one aspect of the present disclosure, a communication method is provided in which a terminal receives first information from a base station regarding an extended period for measurements using a measurement signal, periodically sets an extended period for measurements using the measurement signal based on the first information, receives second information from the base station indicating that the extended period is to be activated, and performs the measurements during the periodic extended period based on the second information, and does not receive or transmit signals between the terminal and the base station.

[0374] The above arrangement allows for extended periods of non-activation during which signal reception or transmission can be performed, thereby reducing the impact of scheduling restrictions on measurements.

[0375] According to one aspect of the present disclosure, a communication method is provided in which a terminal receives first information from a base station regarding an extended period for measurements using a measurement signal, periodically sets an extended period for measurements using the measurement signal based on the first information, receives second information from the base station indicating that the extended period is to be activated, and performs the measurements during one of the extended periods based on the second information, and does not receive or transmit signals between the terminal and the base station.

[0376] The above arrangement allows for extended periods of non-activation during which signal reception or transmission can be performed, thereby reducing the impact of scheduling restrictions on measurements.

[0377] Also, in relation to Proposal 5, according to one aspect of the present disclosure, a terminal is provided that includes a communication unit that receives first information regarding measurements using measurement signals from a base station, and a control unit that periodically sets a period associated with measurements using the measurement signals based on the first information, wherein the communication unit receives second information from the base station indicating that the measurements will not be performed during part of the periodic period, and based on the second information, the control unit does not perform the measurements during part of the periodic period, and the communication unit receives or transmits signals between the base station and the terminal.

[0378] With the above configuration, based on the second information from the base station, it is possible to perform signal reception or transmission without performing measurements during part of the periodic period, thereby reducing the impact caused by scheduling restrictions on measurements.

[0379] In one example, the portion of the periodic period is N consecutive periods (N is an integer equal to or greater than 1).

[0380] With the above configuration, it is possible to avoid performing measurements during periods when it is not appropriate to perform measurements or when measurements are not necessary.

[0381] In one example, part of the periodic period is the period included in a measurement non-execution period.

[0382] With the above configuration, it is possible to avoid performing measurements during periods when it is not appropriate to perform measurements or when measurements are not necessary.

[0383] In one example, the second information includes third information indicating whether the measurement is to be performed or not to be performed during each of the consecutive periods, and part of the periodic period is the period among the consecutive periods that corresponds to the third information indicating that the measurement is not to be performed.

[0384] The above configuration makes it possible to avoid performing measurements during periods of diverse patterns.

[0385] In one example, after receiving the second information, the communication unit receives fourth information from the base station indicating that the measurement is to be performed during another part of the periodic period, the part of the periodic period being the period after receiving the second information and before receiving the fourth information.

[0386] With the above configuration, it is possible to dynamically control whether to perform measurements or receive or transmit signals during a period.

[0387] According to one aspect of the present disclosure, a communication method is provided in which a terminal receives first information regarding measurements using measurement signals from a base station, periodically sets a period associated with measurements using the measurement signals based on the first information, receives second information from the base station indicating that the measurements will not be performed during part of the periodic period, and based on the second information, does not perform the measurements during part of the periodic period and receives or transmits signals between the terminal and the base station.

[0388] With the above configuration, based on the second information from the base station, it is possible to perform signal reception or transmission without performing measurements during part of the periodic period, thereby reducing the impact caused by scheduling restrictions on measurements.

[0389] Also, in relation to Proposal 6, according to one aspect of the present disclosure, a terminal is provided that includes a communication unit that receives first information regarding measurements using measurement signals from a base station, and a control unit that periodically sets a period associated with measurements using the measurement signals based on the first information, wherein the communication unit transmits second information to the base station indicating that the measurement will not be performed, and in response to the transmission of the second information, during part of the periodic period, the control unit does not perform the measurement, and the communication unit receives or transmits signals between the base station.

[0390] With the above configuration, in response to transmission of second information to the base station, it is possible to perform signal reception or transmission without performing measurements during part of the periodic period, thereby reducing the impact caused by scheduling restrictions on measurements.

[0391] In one example, after transmitting the second information, the communication unit receives third information from the base station indicating that the measurement will not be performed during part of the periodic period, and based on the third information, the control unit does not perform the measurement during part of the periodic period, and the communication unit receives or transmits signals between the base station and the base station.

[0392] With the above configuration, by using the third information from the base station as a control criterion, it is possible to execute signal reception or transmission during a part of the periodic period.

[0393] In one example, the second information indicates that the measurement will not be performed during part or another part of the periodic period, and after transmitting the second information, the communication unit receives fourth information from the base station indicating that the measurement will not be performed during part of the periodic period, and based on the fourth information, during part of the periodic period, the control unit does not perform the measurement, and the communication unit receives or transmits signals between the base station.

[0394] With the above configuration, by using the fourth information from the base station as a control criterion, it is possible to execute signal reception or transmission during a part of the periodic period.

[0395] In one example, the second information indicates that the measurement will not be performed during a portion of the periodic period, and after transmitting the second information, the communication unit receives fifth information confirming that the measurement will not be performed during a portion of the periodic period, and based on the second information and the fifth information, the control unit does not perform the measurement during a portion of the periodic period, and the communication unit receives or transmits signals between the base station.

[0396] With the above configuration, it is possible to receive or transmit a signal during a part of a periodic period based on the second information transmitted from the terminal and the fifth information from the base station.

[0397] In one example, the second information indicates that the measurement will not be performed during a portion of the periodic period, and based on the second information, during the portion of the periodic period, the control unit does not perform the measurement, and the communication unit receives or transmits signals between the base station.

[0398] With the above configuration, the terminal can receive or transmit signals during a portion of the periodic period as desired based on the second information transmitted from the terminal.

[0399] According to one aspect of the present disclosure, there is provided a communication method in which a terminal receives, from a base station, first information related to measurements using measurement signals, periodically sets a period associated with measurements using the measurement signals based on the first information, transmits second information to the base station indicating that the measurements will not be performed, and, in response to the transmission of the second information, does not perform the measurements and performs signal reception or transmission with the base station during part of the periodic period.

[0400] With the above configuration, in response to transmission of second information to the base station, it is possible to perform signal reception or transmission without performing measurements during part of the periodic period, thereby reducing the impact caused by scheduling restrictions on measurements.

[0401] <Hardware Configuration, etc.> The block diagrams used to explain the above embodiments show functional blocks. These functional blocks (components) are realized by any combination of at least one of hardware and software. Furthermore, the method for realizing each functional block is not particularly limited. That is, each functional block may be realized using a single device that is physically or logically coupled, or may be realized using two or more physically or logically separated devices that are directly or indirectly connected (for example, using wires, wirelessly, etc.) and these multiple devices. The functional block may also be realized by combining software with the single device or the multiple devices.

[0402] Functions include, but are not limited to, judgment, determination, assessment, calculation, computation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, resolution, selection, selection, establishment, comparison, assumption, expectation, consideration, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, and assignment. For example, a functional block (component) that performs transmission is called a transmitting unit or transmitter. As mentioned above, there are no particular limitations on how these functions are implemented.

[0403] For example, a base station, a terminal, etc. according to an embodiment of the present disclosure may function as a computer that performs processing of the communication method of the present disclosure. Fig. 28 is a diagram illustrating an example of the hardware configuration of a base station and a terminal according to an embodiment of the present disclosure. The above-described base station 100 and terminal 200 may be physically configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, etc.

[0404] In the following description, the term "apparatus" can be interpreted as a circuit, a device, a unit, etc. The hardware configuration of base station 100 and terminal 200 may be configured to include one or more of the apparatuses shown in the drawings, or may be configured to exclude some of the apparatuses.

[0405] Each function in the base station 100 and the terminal 200 is realized by loading specified software (programs) onto hardware such as the processor 1001 and the memory 1002, causing the processor 1001 to perform calculations, control communication by the communication device 1004, and control at least one of reading and writing data in the memory 1002 and the storage 1003.

[0406] The processor 1001 controls the entire computer by running, for example, an operating system. The processor 1001 may be configured by a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic unit, a register, etc. For example, the above-mentioned control unit 103 and control unit 203 may be realized by the processor 1001.

[0407] The processor 1001 also reads programs (program codes), software modules, data, etc. from at least one of the storage 1003 and the communication device 1004 into the memory 1002 and executes various processes in accordance with these. The programs used are those that cause a computer to execute at least some of the operations described in the above-described embodiments. For example, the control unit 203 of the terminal 200 may be implemented by a control program stored in the memory 1002 and running on the processor 1001, and similar implementations may be made for other functional blocks. While the above-described various processes have been described as being executed by one processor 1001, they may also be executed simultaneously or sequentially by two or more processors 1001. The processor 1001 may be implemented by one or more chips. The programs may also be transmitted from a network via a telecommunications line.

[0408] The memory 1002 is a computer-readable recording medium and may be configured by, for example, at least one of a read-only memory (ROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM), a random access memory (RAM), etc. The memory 1002 may also be called a register, a cache, a main memory (primary storage device), etc. The memory 1002 can store executable programs (program codes), software modules, etc. for implementing a communication method according to an embodiment of the present disclosure.

[0409] Storage 1003 is a computer-readable recording medium, and may be composed of at least one of, for example, an optical disk such as a CD-ROM (Compact Disc ROM), a hard disk drive, a flexible disk, a magneto-optical disk (e.g., a compact disk, a digital versatile disk, a Blu-ray (registered trademark) disk), a smart card, a flash memory (e.g., a card, a stick, a key drive), a floppy (registered trademark) disk, a magnetic strip, etc. Storage 1003 may also be referred to as an auxiliary storage device. The above-mentioned storage medium may be, for example, a database, a server, or other appropriate medium including at least one of memory 1002 and storage 1003.

[0410] The communication device 1004 is hardware (transmission / reception device) for communicating between computers via at least one of a wired network and a wireless network, and is also referred to as, for example, a network device, a network controller, a network card, a communication module, etc. The communication device 1004 may be configured to include a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc. to realize at least one of frequency division duplex (FDD) and time division duplex (TDD). For example, the above-mentioned transmitter 101, receiver 102, receiver 201, transmitter 202, etc. may be realized by the communication device 1004.

[0411] The input device 1005 is an input device (e.g., a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.) that receives input from the outside. The output device 1006 is an output device (e.g., a display, a speaker, an LED lamp, etc.) that outputs to the outside. The input device 1005 and the output device 1006 may be integrated into one device (e.g., a touch panel).

[0412] Furthermore, each device, such as the processor 1001 and the memory 1002, is connected by a bus 1007 for communicating information. The bus 1007 may be configured using a single bus, or may be configured using different buses between each device.

[0413] Furthermore, base station 100 and terminal 200 may be configured to include hardware such as a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a programmable logic device (PLD), or a field programmable gate array (FPGA), and some or all of the functional blocks may be realized by the hardware. For example, processor 1001 may be implemented using at least one of these pieces of hardware.

[0414] (Supplementary Notes on the Embodiments) Although the embodiments of the present disclosure 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, and substitutions. While specific numerical examples have been used to facilitate understanding of the invention, 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 disclosure; matters described in two or more items may be used in combination as needed, and matters described in one item may apply to matters described in another item (unless inconsistent). Boundaries between functional units or processing units in functional block diagrams do not necessarily correspond to boundaries between physical components. The operations of multiple functional units may be performed by a single physical component, or the operations of a single functional unit may be performed by multiple physical components. The order of processing procedures described in the embodiments may be reversed as long as there is no contradiction. For convenience of processing description, base stations and terminals 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 a base station in accordance with an embodiment of the present disclosure, and the software operated by the processor of a terminal in accordance with an embodiment of the present disclosure may each be stored in random access memory (RAM), flash memory, read-only memory (ROM), EPROM, EEPROM, register, hard disk (HDD), removable disk, CD-ROM, database, server, or any other suitable storage medium.

[0415] <Notification of Information, Signaling> Notification of information is not limited to the embodiments described in the present disclosure and may be performed using other methods. For example, notification of information may be performed by physical layer signaling (e.g., Downlink Control Information (DCI) and Uplink Control Information (UCI)), higher layer signaling (e.g., Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, broadcast information (Master Information Block (MIB) and System Information Block (SIB))), other signals, or a combination thereof. Furthermore, RRC signaling may be referred to as an RRC message, and may be, for example, an RRC Connection Setup message, an RRC Connection Reconfiguration message, or the like.

[0416] <Applicable Systems> The embodiments described in the present disclosure are applicable to LTE (Long Term Evolution), LTE-Advanced (LTE-A), 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 (x is, for example, an integer or a 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)), IEEE 802.17 (WiMAX (registered trademark)), IEEE 802.19 (WiMAX (registered trademark)), IEEE 802.20 (WiMAX (registered trademark)), IEEE 802.21 (Wi-Fi (registered trademark)), IEEE 802.22 (WiMAX (registered trademark)), IEEE 802.23 (WiMAX (registered trademark)), IEEE 802.24 (WiMAX (registered trademark)), IEEE 802.25 (WiMAX (registered trademark)), IEEE 802.26 (WiMAX (registered trademark)), IEEE 802.27 (WiMAX (registered trademark)), IEEE 802.28 (WiMAX (registered trademark)), IEEE 802.29 (WiMAX (registered trademark)), IEEE 802.30 (WiMAX (registered trademark)), IEEE 802.31 (Wi-Fi (registered trademark)), IEEE 802.32 (WiMAX (registered trademark)), IEEE 802.33 (WiMAX (registered trademark)), IEEE 802.34 (WiMAX (registered trademark The present invention may be applied to at least one of systems using 802.20, UWB (Ultra-Wide Band), Bluetooth (registered trademark), or other suitable systems, and next-generation systems that are extended, modified, created, or defined based on these systems. The present invention may also be applied to a combination of multiple systems (e.g., a combination of LTE and / or LTE-A with 5G).

[0417] <Processing Procedures, etc.> The processing procedures, sequences, flowcharts, etc. of each aspect / embodiment described in this disclosure may be rearranged unless inconsistent. For example, the methods described in this disclosure present elements of various steps using an example order, and are not limited to the particular order presented.

[0418] <Operation of Base Station> In the present disclosure, specific operations described as being performed by a base station may also be performed by its upper node in some cases. In a network consisting of one or more network nodes having a base station, it is clear that various operations performed for communication with a terminal may be performed by at least one of the base station and another network node other than the base station (for example, an MME or an S-GW, etc., but are not limited to these). Although the above example illustrates a case where there is one other network node other than the base station, a combination of multiple other network nodes (for example, an MME and an S-GW) may also be used.

[0419] <Direction of Input / Output> Information, etc. (see <Information, Signal>) can be output from a higher layer (or a lower layer) to a lower layer (or a higher layer). It may also be input / output via multiple network nodes.

[0420] <Handling of Input / Output Information, etc.> Input / output information, etc. may be stored in a specific location (for example, memory) or may be managed using a management table. Input / output information, etc. may be overwritten, updated, or added. Output information, etc. may be deleted. Input information, etc. may be sent to another device.

[0421] <Determination method> The determination may be made based on a value represented by one bit (0 or 1), a Boolean value (true or false), or a comparison of numerical values ​​(e.g., comparison with a predetermined value).

[0422] <Variations of Aspects, etc.> Each aspect / embodiment described in the present disclosure may be used alone, in combination, or switched depending on the implementation. In addition, notification of predetermined information (e.g., notification that "X is true") is not limited to being done explicitly, but may be done implicitly (e.g., by not notifying the predetermined information).

[0423] Although the present disclosure has been described in detail above, it is 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 spirit and scope of the present disclosure as defined by the claims. Therefore, the description of the present disclosure is intended to be illustrative and does not have any limiting meaning on the present disclosure.

[0424] <Software> Software shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures, functions, etc., whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.

[0425] Software, instructions, information, etc. may also be transmitted or received over a transmission medium. For example, if software is transmitted from a website, server, or other remote source using wired technologies (such as coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL)), and / or wireless technologies (such as infrared, microwave), then these wired and / or wireless technologies are included within the definition of transmission media.

[0426] Information, Signals, etc., described in this disclosure may be represented using any of a variety of different technologies. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc., which may be referred to throughout the above description, may be represented by voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, optical fields or photons, or any combination thereof.

[0427] Note that terms described 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 a channel and a symbol may be a signal (signaling). Furthermore, a signal may be a message. Furthermore, a component carrier (CC) may be called a carrier frequency, a cell, a frequency carrier, etc.

[0428] <System, Network> As used in this disclosure, the terms "system" and "network" are used interchangeably.

[0429] <Parameter and Channel Names> Furthermore, the information, parameters, and the like described in the present disclosure may be expressed using absolute values, relative values ​​from a predetermined value, or other corresponding information. For example, a radio resource may be indicated by an index.

[0430] The names used for the above-described parameters are not intended to be limiting in any way. Furthermore, the mathematical expressions using these parameters may differ from those explicitly disclosed in this disclosure. The various channels (e.g., PUCCH, PDCCH, etc.) and information elements may be identified by any suitable names, and therefore the various names assigned to these various channels and information elements are not intended to be limiting in any way.

[0431] <Base Station> In the present disclosure, terms such as "base station (BS)," "radio 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. A base station may also be referred to by terms such as a macrocell, a small cell, a femtocell, and a picocell.

[0432] A base station can accommodate one or more (e.g., three) cells. When a base station accommodates multiple cells, the overall coverage area of ​​the base station can be partitioned into multiple smaller areas, and each smaller area can 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 the entire coverage area of ​​a base station and / or base station subsystem that provides communication services within that coverage area.

[0433] In the present disclosure, the base station transmitting information to a terminal may be interpreted as the base station instructing the terminal to control or operate based on the information.

[0434] Mobile Station In this disclosure, the terms "Mobile Station (MS)," "user terminal," "User Equipment (UE)," "terminal," and the like may be used interchangeably.

[0435] 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 some other suitable terminology.

[0436] <Base Station / Mobile Station> At least one of the base station and the mobile station may be referred to as a transmitting device, a receiving device, a communication device, etc. At least one of the base station and the mobile station may be a device mounted on a mobile object, the mobile object itself, etc. The mobile object refers to a movable object, and may move at any speed. Naturally, this also includes cases where the mobile object is stationary. Examples of the mobile object include, but are not limited to, vehicles, transport vehicles, automobiles, motorcycles, bicycles, connected cars, excavators, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, handcars, rickshaws, ships and other watercraft, airplanes, rockets, satellites, drones (registered trademark), multicopters, quadcopters, balloons, and objects mounted thereon. The mobile object may also be a mobile object that moves autonomously based on an operational command. It may be a vehicle (e.g., a car, an airplane, etc.), an unmanned mobile object (e.g., a drone, an autonomous vehicle, etc.), or a robot (manned or unmanned). At least one of the base station and the mobile station may be a device that does 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.

[0437] Furthermore, a base station in the present disclosure may be read as a terminal. For example, the embodiments of the present disclosure may be applied to a configuration in which communication between a base station and a terminal is replaced with communication between multiple terminals (which may be called, for example, D2D (Device-to-Device) or V2X (Vehicle-to-Everything)). In this case, the terminal may be configured to have the functions of the base station described above. Furthermore, terms such as "uplink" and "downlink" may be read as terms corresponding to communication between terminals (for example, "side"). For example, terms such as an uplink channel and a downlink channel may be read as a side channel.

[0438] Similarly, the term "terminal" in the present disclosure may be read as "base station." In this case, the base station may be configured to have the functions of the terminal described above.

[0439] Fig. 29 shows an example configuration of a vehicle 2001. As shown in Fig. 29, 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. Each aspect / embodiment described in the present disclosure may be applied to a communication device mounted on the vehicle 2001, and may be applied to the communication module 2013, for example.

[0440] The drive unit 2002 is configured, for example, by 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 operated by the user.

[0441] The electronic control unit 2010 is composed of a microprocessor 2031, a memory (ROM, RAM) 2032, and a communication port (IO port) 2033. Signals are input to the electronic control unit 2010 from various sensors 2021 to 2029 provided in the vehicle 2001. The electronic control unit 2010 may also be called an ECU (Electronic Control Unit).

[0442] The signals from the various sensors 2021 to 2029 include a current signal from a current sensor 2021 that senses the current of the motor, a rotation speed signal of the front and rear wheels obtained by a rotation speed sensor 2022, an air pressure signal of the front and rear wheels obtained by an air pressure sensor 2023, a vehicle speed signal obtained by a vehicle speed sensor 2024, an acceleration signal obtained by an acceleration sensor 2025, an accelerator pedal depression amount signal obtained by an accelerator pedal sensor 2029, a brake pedal depression amount signal obtained by a brake pedal sensor 2026, a shift lever operation signal obtained by a shift lever sensor 2027, and a detection signal for detecting obstacles, vehicles, pedestrians, etc. obtained by an object detection sensor 2028.

[0443] The information service unit 2012 is composed of various devices, such as a car navigation system, an audio system, speakers, a television, and a radio, for providing (outputting) various types of information, such as driving information, traffic information, and entertainment information, and one or more ECUs that control these devices. The information service unit 2012 provides various types of multimedia information and multimedia services to the occupants of the vehicle 2001 by using information acquired from external devices via the communication module 2013, etc.

[0444] The information service unit 2012 may include input devices (e.g., keyboards, mice, microphones, switches, buttons, sensors, touch panels, etc.) that accept input from the outside, and may also include output devices (e.g., displays, speakers, LED lamps, touch panels, etc.) that output to the outside.

[0445] The driving assistance system unit 2030 is composed of various devices that provide functions for preventing accidents and reducing the driving burden on the driver, such as millimeter-wave radar, LiDAR (Light Detection and Ranging), cameras, positioning locators (e.g., GNSS, etc.), 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. In addition, the driving assistance system unit 2030 transmits and receives various information via the communication module 2013 to realize the driving assistance function or the autonomous driving function.

[0446] The communication module 2013 can communicate with the microprocessor 2031 and components of the vehicle 2001 via the communication port. For example, the communication module 2013 transmits and receives data via the communication port 2033 to and from the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, shift lever 2006, front wheels 2007, rear wheels 2008, axle 2009, microprocessor 2031 and memory (ROM, RAM) 2032 in the electronic control unit 2010, and sensors 2021 to 2029, which are provided in the vehicle 2001.

[0447] 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 an external device. For example, it transmits and receives various information to and from the external device 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, a mobile station, or the like.

[0448] The communication module 2013 may transmit at least one of signals from the above-mentioned various sensors 2021 to 2029 input to the electronic control unit 2010, information obtained based on the signals, and information based on input from the outside (user) obtained via the information service unit 2012 to an external device via wireless communication. The electronic control unit 2010, the various sensors 2021 to 2029, the information service unit 2012, etc. may be referred to as input units that accept input. For example, the PUSCH transmitted by the communication module 2013 may include information based on the above-mentioned input.

[0449] The communication module 2013 receives various information (traffic information, traffic signal information, vehicle-to-vehicle information, etc.) transmitted from external devices and displays it on an information service unit 2012 provided in the vehicle 2001. The information service unit 2012 may be called an output unit that outputs information (for example, outputs information to a device such as a display or speaker 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 external devices in a memory 2032 that can be used by the microprocessor 2031. Based on the information stored in the 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 to 2029, and the like provided in the vehicle 2001.

[0450] <Meaning and Interpretation of Terms> As used in this disclosure, the terms "determining" and "determining" may encompass a wide variety of actions. "Determining" and "determining" may include, for example, judging, calculating, computing, processing, deriving, investigating, looking up, searching, inquiring (e.g., searching a table, database, or other data structure), ascertaining something that is considered to be a "judging" or "determining," and the like. "Determining" and "determining" may also include receiving (e.g., receiving information), transmitting (e.g., sending information), input, output, accessing (e.g., accessing data in memory), and the like that are considered to be a "judging" or "determining." Furthermore, "judgment" and "decision" can include regarding resolving, selecting, choosing, establishing, comparing, etc. as having been "judged" or "decided." In other words, "judgment" and "decision" can include regarding some action as having been "judged" or "decided." Furthermore, "judgment (decision)" can be interpreted as "assuming," "expecting," "considering," etc.

[0451] The terms "connected," "coupled," or any variation thereof, refer to 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" to each other. The coupling or connection between elements may be physical, logical, or a combination thereof. For example, "connected" may be read as "access." As used in this disclosure, two elements may be considered to be "connected" or "coupled" to each other using one or more wires, cables, and / or printed electrical connections, as well as electromagnetic energy having wavelengths in the radio frequency range, microwave range, and optical (both visible and invisible) range, as some non-limiting and non-exhaustive examples.

[0452] <Reference Signal> A reference signal can also be abbreviated as RS (Reference Signal), and may also be called a pilot depending on the applicable standard.

[0453] <Meaning of "based on"> As used in this disclosure, the phrase "based on" does not mean "based only on," unless expressly stated otherwise. In other words, the phrase "based on" means both "based only on" and "based at least on."

[0454] "First," "Second" Any reference to an element using a designation such as "first," "second," etc., 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 method of distinguishing between two or more elements. Thus, a reference to a first and a second element does not imply that only two elements may be employed or that the first element must precede the second element in some way.

[0455] <Means> The "means" in the configuration of each device above may be replaced with "section," "circuit," "device," etc.

[0456] Open Format: When the terms "include," "including," and variations thereof are used in this disclosure, these terms are intended to be inclusive, similar to the term "comprising." Furthermore, when the term "or" is used in this disclosure, it is not intended to be an exclusive or.

[0457] <Time Units such as TTI, Frequency Units such as RB, and Radio Frame Configuration> A radio frame may be composed of one or more frames in the time domain. Each of the one or more frames in the time domain may be called a subframe. A subframe may further be composed 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.

[0458] Numerology may be a communication parameter that applies to the transmission and / or reception of a signal or channel, and may indicate, for example, at least one of subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, radio frame structure, specific filtering operations performed by the transceiver in the frequency domain, and specific windowing operations performed by the transceiver in the time domain.

[0459] A slot may be composed of one or more symbols in the time domain (such as an Orthogonal Frequency Division Multiplexing (OFDM) symbol or a Single Carrier Frequency Division Multiple Access (SC-FDMA) symbol). A slot may be a time unit based on numerology.

[0460] A slot may include multiple minislots. Each minislot may consist of one or multiple symbols in the time domain. A minislot may also be called a subslot. A minislot 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.

[0461] The radio frame, subframe, slot, minislot, and symbol all represent time units for transmitting signals, and may be referred to by other names corresponding to the radio frame, subframe, slot, minislot, and symbol.

[0462] 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 minislot may be called a TTI. That is, at least one of the subframe and the TTI may be a subframe (1 ms) in existing LTE, a period shorter than 1 ms (for example, 1-13 symbols), or a period longer than 1 ms. Note that the unit representing the TTI may be called a slot, minislot, etc. instead of a subframe.

[0463] Here, TTI refers to, for example, the smallest time unit for scheduling in wireless communication. For example, in an LTE system, a base station performs scheduling to allocate radio resources (such as frequency bandwidth and transmission power that can be used by each user terminal) to each user terminal in TTI units. Note that the definition of TTI is not limited to this.

[0464] The TTI may be a transmission time unit for a channel-encoded data packet (transport block), a code block, a code word, etc., or may be a processing unit for scheduling, link adaptation, etc. When a TTI is given, the time interval (e.g., the number of symbols) to which a transport block, a code block, a code word, etc. is actually mapped may be shorter than the TTI.

[0465] When one slot or one minislot is called a TTI, one or more TTIs (i.e., one or more slots or one or more minislots) may be the minimum time unit for scheduling. Also, the number of slots (minislots) constituting the minimum time unit for scheduling may be controlled.

[0466] A TTI having a time length of 1 ms may be called a regular TTI (TTI in LTE Rel. 8-12), normal TTI, long TTI, regular subframe, normal subframe, long subframe, slot, etc. A TTI shorter than a regular TTI may be called a shortened TTI, short TTI, partial or fractional TTI, shortened subframe, short subframe, minislot, subslot, slot, etc.

[0467] In addition, a long TTI (e.g., a normal TTI, a subframe, etc.) may be interpreted as a TTI having a time length of more than 1 ms, and a short TTI (e.g., a shortened TTI, etc.) may be interpreted as a TTI having a TTI length shorter than the TTI length of a long TTI and greater than or equal to 1 ms.

[0468] A resource block (RB) is a resource allocation unit in the time domain and the frequency domain, and may include one or more consecutive subcarriers in the frequency domain. The number of subcarriers included in an RB may be the same regardless of numerology, for example, 12. The number of subcarriers included in an RB may be determined based on numerology.

[0469] The time domain of an RB may include one or more symbols and may have a length of one slot, one minislot, one subframe, or one TTI. One TTI, one subframe, etc. may each be composed of one or more resource blocks.

[0470] Note that one or more RBs may also be called a physical resource block (PRB), a sub-carrier group (SCG), a resource element group (REG), a PRB pair, an RB pair, etc.

[0471] Furthermore, a resource block may be composed of one or more resource elements (REs). For example, one RE may be a radio resource region of one subcarrier and one symbol.

[0472] A Bandwidth Part (BWP) (which may also be referred to as a fractional bandwidth) may represent a subset of contiguous common resource blocks (RBs) for a given numerology on a given carrier, where the common RBs may be identified by their index relative to a Common Reference Point of the carrier. PRBs may be defined in a BWP and numbered within the BWP.

[0473] The BWP may include a BWP for UL (UL BWP) and a BWP for DL ​​(DL BWP). One or more BWPs may be configured for a UE within one carrier.

[0474] At least one of the configured BWPs may be active, and the UE may not expect to transmit or receive a given signal / channel outside the active BWP. Note that the terms "cell," "carrier," etc. in this disclosure may be read as "BWP."

[0475] The above-described structures of radio frames, subframes, slots, minislots, symbols, etc. are merely examples, and various changes may be made to the number of subframes included in a radio frame, the number of slots per subframe or radio 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, the number of symbols in a TTI, the symbol length, the cyclic prefix (CP) length, etc.

[0476] <Maximum Transmit Power> The "maximum transmit power" in the present disclosure may refer to the maximum value of transmit power, the nominal UE maximum transmit power, or the rated UE maximum transmit power.

[0477] Articles In this disclosure, where articles are added by translation, such as a, an, and the in English, the disclosure may include that the nouns following these articles are in the plural form.

[0478] <"Different"> In the present disclosure, the term "A and B are different" may mean "A and B are different from each other." Note that the term may also mean "A and B are each different from C." Terms such as "separate" and "coupled" may also be interpreted in the same way as "different."

[0479] One aspect of the present disclosure is useful in wireless communication systems.

[0480] 10 Wireless communication system 20 NG-RAN 100 Base station (gNB) 200 Terminal (UE) 101, 202 Transmitter 102, 201 Receiver 103, 203 Controller

Claims

1. A terminal comprising: a control unit that determines whether to receive or transmit a signal or perform a measurement using a measurement signal when the timing of receiving or transmitting the signal overlaps with a period associated with a measurement using the measurement signal; and a communication unit that receives or transmits the signal at the timing in accordance with the determination.

2. The terminal according to claim 1, wherein the control unit determines whether to receive or transmit the signal or perform a measurement using the measurement signal based on information indicating the priority of the signal and the period and / or the measurement.

3. The terminal according to claim 1, wherein the control unit determines whether to receive or transmit the signal or to perform a measurement using the measurement signal based on a predefined condition.

4. The terminal according to claim 1, wherein the signal is received or transmitted in a particular cell.

5. The terminal according to claim 1, wherein the signal is received or transmitted on a particular carrier.

6. A communications method in which a terminal determines whether to receive or transmit a signal or perform a measurement using a measurement signal when the timing of receiving or transmitting the signal overlaps with a period associated with a measurement using the measurement signal, and receives or transmits the signal at the timing in accordance with the determination.

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