Terminal and communication method

Abstract

This terminal comprises: a reception unit that receives an LP-WUS (Low-Power Wake Up Signal) from a base station in an idle mode or an inactive mode; and a control unit that determines a PO (Paging occasion) in a PF (Paging frame) to be monitored, on the basis of an LO (LP-WUS occasion) with the received LP-WUS, an MO (LP-WUS monitoring occasion), and a bit block in the MO. The reception unit receives paging from the base station in the determined PO.

Description

Terminals and communication methods

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

[0002] The 3rd Generation Partnership Project (3GPP) is exploring wireless communication methods known as 5G or NR (New Radio) (hereinafter referred to as "NR") in order to achieve even greater system capacity, even faster data transmission speeds, and even lower latency in the wireless section. In order to meet the requirements of achieving a throughput of 10 Gbps or more while keeping the latency in the wireless section below 1 ms, various wireless technologies and network architectures are being considered (for example, Non-Patent Documents 1 and 2).

[0003] 3GPP TS 38.300 V18.4.0 (2024-12)3GPP TS 38.401 V18.4.0 (2024-12)3GPP TS 38.304 V18.4.0 (2024-12)3GPP TS 38.331 V18.4.0 (2024-12)

[0004] To further reduce the power consumption of conventional WUS (Wake Up Signals), a system called LP (Low Power)-WUS (Wake Up Signal) / WUR (Wake Up Receiver) is being considered. An LO (LP-WUS occasion) consists of multiple MOs (LP-WUS monitoring occasions). When an LP-WUS is received in a given MO, it is necessary to determine the associated PF (Paging Frame) and PO (Paging Occasion) and perform monitoring.

[0005] The present invention has been made in view of the above points, and aims to determine the time resources associated with LP (Low Power) - WUS (Wake Up Signal) in a wireless communication system.

[0006] According to the disclosed technology, a terminal is provided which includes a receiving unit that receives an LP-WUS (Low-Power Wake Up Signal) from a base station in idle mode or inactive mode, and a control unit that determines a PO (Paging occasion) in a Paging frame (PF) to be monitored based on the LO (LP-WUS occasion), MO (LP-WUS monitoring occasion) and bit blocks within MO received from the LP-WUS, and the receiving unit receives paging from the base station at the determined PO.

[0007] According to the disclosed technology, it is possible to determine the time resources associated with LP (Low Power) - WUS (Wake Up Signal) in a wireless communication system.

[0008] This is a diagram illustrating a wireless communication system in an embodiment of the present invention. This is a diagram illustrating a wireless communication system in an embodiment of the present invention. This is a sequence diagram illustrating an example of receiving a low-power signal. This is a diagram illustrating an example of receiving a low-power signal (1). This is a diagram illustrating an example of receiving a low-power signal (2). This is a diagram illustrating an example of receiving a low-power signal (3). This is a diagram illustrating an example of PEI in an embodiment of the present invention. This is a flowchart illustrating an example of monitoring in an embodiment of the present invention. This is a diagram illustrating an example of monitoring (1) in an embodiment of the present invention. This is a diagram illustrating an example of a monitoring signal (2) in an embodiment of the present invention. This is a diagram illustrating an example of the functional configuration of a base station 10 in an embodiment of the present invention. This is a diagram illustrating an example of the functional configuration of a terminal 20 in an embodiment of the present invention. This is a diagram illustrating an example of the hardware configuration of a base station 10 or terminal 20 in an embodiment of the present invention. This is a diagram illustrating an example of the configuration of a vehicle 2001 in an embodiment of the present invention.

[0009] Embodiments of the present invention will be described below with reference to the drawings. Note that the embodiments described below are examples, and the embodiments to which the present invention is applied are not limited to those described below.

[0010] In the operation of the wireless communication system according to the embodiments of the present invention, existing technologies may be used as appropriate. However, such existing technologies include, for example, existing LTE, but are not limited to existing LTE. Furthermore, the term "LTE" as used herein has a broad meaning that includes LTE-Advanced and LTE-Advanced and later technologies (e.g., NR), unless otherwise specified.

[0011] Furthermore, in the embodiments of the present invention described below, terms such as SS (Synchronization signal), PSS (Primary SS), SSS (Secondary SS), PBCH (Physical broadcast channel), PRACH (Physical random access channel), PDCCH (Physical Downlink Control Channel), PDSCH (Physical Downlink Shared Channel), PUCCH (Physical Uplink Control Channel), and PUSCH (Physical Uplink Shared Channel), which are used in existing LTE technologies, will be used. This is for convenience of description, and similar signals, functions, etc., may be called by other names. In NR, the above terms will be referred to as SS, PSS, SSS, PBCH, PRACH, etc., without any particular distinction from LTE.

[0012] Furthermore, in the embodiments of the present invention, the duplex system may be a TDD (Time Division Duplex) system, an FDD (Frequency Division Duplex) system, or any other system (for example, a Flexible Duplex).

[0013] Furthermore, in the embodiments of the present invention, "configuring" wireless parameters, etc., may mean that predetermined values ​​are pre-configured, or that wireless parameters notified from the base station 10 or terminal 20 are configured.

[0014] Figure 1 shows an example of the configuration of a wireless communication system in an embodiment of the present invention. The wireless communication system in the embodiment of the present invention includes a base station 10 and a terminal 20, as shown in Figure 1. Figure 1 shows one base station 10 and one terminal 20, but this is an example, and there may be multiple base stations 10 and terminals 20.

[0015] Base station 10 is a communication device that provides one or more cells and communicates wirelessly with terminal 20. The physical resources of the wireless signal are defined in the time domain and the frequency domain. The time domain may be defined by the number of OFDM (Orthogonal Frequency Division Multiplexing) symbols, and the frequency domain may be defined by the number of subcarriers or resource blocks. Base station 10 transmits synchronization signals and system information to terminal 20. Synchronization signals are, for example, PSS and SSS. System information is transmitted, for example, via PBCH and is also called broadcast information. Synchronization signals and system information may be called SSB (SS / PBCH block). As shown in Figure 1, base station 10 transmits control signals or data to terminal 20 via DL (Downlink) and receives control signals or data from terminal 20 via UL (Uplink). Both base station 10 and terminal 20 are capable of transmitting and receiving signals using beamforming. Furthermore, both base station 10 and terminal 20 are capable of applying MIMO (Multiple Input Multiple Output) communication to DL or UL. Furthermore, both the base station 10 and the terminal 20 may communicate via secondary cells (SCell) and primary cells (PCell) using Carrier Aggregation (CA). In addition, the terminal 20 may communicate via the primary cell of base station 10 and the primary secondary cell group cell (PSCell) of another base station 10 using Dual Connectivity (DC).

[0016] Terminal 20 is a communication device equipped with wireless communication capabilities, such as a smartphone, mobile phone, tablet, wearable device, or M2M (Machine-to-Machine) communication module. As shown in Figure 1, Terminal 20 receives control signals or data from the base station 10 via DL and transmits control signals or data to the base station 10 via UL, thereby utilizing various communication services provided by the wireless communication system. Terminal 20 also receives various reference signals transmitted from the base station 10 and performs propagation path quality measurement based on the reception results of said reference signals.

[0017] Figure 2 is a diagram illustrating a wireless communication system according to an embodiment of the present invention. Figure 2 shows an example configuration of a wireless communication system when DC (Dual connectivity) is performed. As shown in Figure 2, a base station 10A, which will be an MN (Master Node), and a base station 10B, which will be an SN (Secondary Node), are provided. Base stations 10A and 10B are each connected to the core network. Terminal 20 can communicate with both base station 10A and base station 10B.

[0018] A cell group provided by base station 10A, which is an MN (Mobile Network), is called an MCG (Master Cell Group), and a cell group provided by base station 10B, which is an SN (Mobile Network), is called an SCG (Secondary Cell Group). In a data center, an MCG consists of one PCell and one or more SCells, and an SCG consists of one PSCell (Primary SCG Cell) and one or more SCells.

[0019] The processing operations in this embodiment may be performed using the system configuration shown in Figure 1, the system configuration shown in Figure 2, or any other system configuration. In the following description, " / " means "and / or" unless otherwise specified, or unless it is clear from the context that it has a different meaning.

[0020] 3GPP (registered trademark) is considering a power-saving technology called "Low-Power Wake Up Signal and Receiver." The Low-Power Wake Up Signal is called LP-WUS or simply WUS, and the Low-Power Wake Up Receiver is called LP-WUR, WUR, or LR. As an alternative to the main radio (MR) used in normal data communication, the LR, a simpler circuit that operates with lower power consumption than the MR, is activated to introduce a state called Ultra-Deep Sleep. The LR may have a function that triggers either the power off of the MR or the power on of the MR when the LR receives an LP-WUS signal.

[0021] Furthermore, 3GPP Rel-19 considers the following: For example, it defines a Low Power-Synchronization Signal (LP-SS) with a specific period corresponding to the LP-WUR for serving cell synchronization and / or Radio Resource Management (RRM) in idle / inactive modes. The LP-SS is a signal based on an On-Off Keying (OOK) waveform with or without an overlaid Orthogonal Frequency Division Multiplexing (OFDM) sequence. It also defines further RRM relaxation in the terminal MR for both serving cell and adjacent cell measurements, including necessary conditions, and UE serving cell RRM measurements offloaded from the MR to the LP-WUR.

[0022] The purpose of the RRM procedure in idle / inactive mode is to ensure that the terminal is camp-on to the best cell.

[0023] In serving cell measurement (see Non-Patent Document 3 for reference), the terminal measures the SS-RSRP and SS-RSRQ levels of the serving cell, and evaluates the cell selection criterion of the serving cell at least once every M1×N1 DRX cycles. Here, the SMTC period (T SMTC ) > 20 ms and the DRX (Discontinuous Reception) cycle ≤ 0.64 seconds, then M1=2; otherwise, M1=1. In addition, N1=1 for FR1, and N1=3 to 12 for FR2.

[0024] Neighbor cell measurement (intra-frequency or inter-frequency cell reselection, see Section 5.2.4 of Non-Patent Document 3 for reference) only needs to be performed when the serving cell is not sufficiently strong, that is, when one of the following conditions is not met. ・Intra-frequency cell reselection criterion: Srxlev > S IntraSearchP and Squal > S IntraSearchQ ・Inter-frequency cell reselection criterion: Srxlev > S nonIntraSearchP and Squal > S nonIntraSearchQ

[0025] In addition, when the terminal is configured with a DRX_IDLE / eDRX_IDLE cycle, and the terminal evaluates that the serving cell does not satisfy the cell selection criterion in Nserv consecutive DRX / eDRX cycles, the terminal starts measurement of all neighbor cells indicated by the serving cell regardless of the measurement rule that currently restricts measurement activity. Here, the cell selection criterion S is Srxlev > 0 and Squal > 0 (see Section 5.2.3.2 of Non-Patent Document 3 for reference). Here, Srxlev and Squal are calculated as follows. ・Srxlev = Q rxlevmeas - (Q rxlevmin + Q rxlevminoffset ) - P compensation - Q offsettemp ・Squal = Q qualmeas - (Q qualmin + Q qualminoffset ) - Qoffset temp

[0026] For detection and synchronization using LP-WUR, initial synchronization and fine synchronization using SSB may be performed by MR. Initial synchronization may be replaced by coarse synchronization. Further synchronization using LP-SS and / or LP-WUS may be performed by detecting LP-SS and / or LP-WUS with LR. Hereinafter, LP-SS and / or LP-WUS will also be referred to as LP-SS / LP-WUS.

[0027] Figure 3 is a sequence diagram illustrating an example of receiving a low-power signal. In step S101, BS10 transmits a notification regarding LP-SS / LP-WUS to UE20. In step S102, UE20 sets LP-WUR based on the notification. In step S103, BS10 transmits LP-SS / LP-WUS to UE20. In step S104, UE20 detects or receives LP-SS / LP-WUS and performs synchronization, RRM measurement, or MR activation.

[0028] In idle / inactive mode, the UE performing LP-WUS monitoring can enter an ultra-deep sleep (UDS) state, which is an extremely low-power state.

[0029] Because UDS consumes very little power, UEs require a longer time to transition from UDS to a communicative state compared to legacy sleep states. The ramp-up time for UEs with UDSs and the ramp-up time for other legacy sleep states may be defined.

[0030] The period from the processing time of LP-WUS by LR until MR completes synchronization or resynchronization is considered an example of "wake-up delay." This period may also be referred to as the wake-up delay.

[0031] As another example of wake-up delay, some IoT devices have a wake-up delay longer than the I (IDLE mode)-DRX cycle length, e.g., longer than 1280 ms, for example 2000 ms.

[0032] In the RRC CONNECTED mode, the wake-up delay may be the minimum gap from the reception of an LP-WUS until the MR starts PDCCH monitoring. Also, in the RRC CONNECTED mode, the wake-up delay includes at least the processing time of the LP-WUS, the transition time for ramp-up of the MR, and the time required for time-frequency synchronization of the MR.

[0033] FIG. 4 is a diagram for explaining an example (1) of receiving a low-power signal. The wake-up delay may include the processing time of an LP-WUS, the transition time for ramp-up of the MR, and the time required for time-frequency synchronization of the MR.

[0034] Since the wake-up delay of a UDS is larger than that of a legacy sleep state, the time offset shown in FIG. 3 between a LO (LP-WUS Occasion), a MO (Monitoring Occasion) and a PO (Paging Occasion) may be set to be greater than or equal to the wake-up delay of the UE, to ensure that the UE can monitor the PO after receiving the LP-WUS. Note that the time offset may be a time interval from the start of the LO, or from the start of the LO and the MO, to the start of the PO, as shown in FIG. 3. It should be noted that a low-power wake-up signal occasion is an occasion for monitoring a low-power wake-up signal, and may be specified by at least a time domain interval. For example, LO may be an example of a low-power wake-up signal occasion.

[0035] However, as mentioned in the previous slide, since UEs have different wake-up delays, it is desirable to configure a plurality of time offsets that are compensated for each wake-up delay.

[0036] Regarding the method for configuring a time offset, the following Option 1 or Option 2 may be specified.

[0037] Option 1: The UE reports its capability related to wake-up delay to the network. The offset between LO and PO is configured by the network based on the reported capability related to wake-up delay. One or more values may be included in the capability related to wake-up delay. One or more values may be configurable for the offset between LO and PO. Option 1 can compensate for several wake-up delays of the UE. On the other hand, since all UEs report their capabilities related to wake-up delay, NW overhead and UE complexity become higher. Since the wake-up delay is not specified, the time offset may be too large (e.g., 2000 ms) for an excessively long wake-up delay of the UE.

[0038] Option 2: A single offset between LO and PO is configured by the network. In this specification, a single value is specified for wake-up delay, and UEs supporting the LP-WUS function shall support wake-up delay not exceeding this value. Option 2 reduces NW overhead and UE complexity because the time offset is determined without the UE reporting its capability related to wake-up delay. On the other hand, UEs cannot have various wake-up delays.

[0039] FIG. 5 is a diagram for explaining an example (2) of receiving a low-power signal. For example, as shown in FIG. 5, depending on the timing of paging arrival, there may occur a case where a paging message that can be received under Option 1 by a UE supporting a short wake-up delay (e.g., 30 ms) cannot be received under Option 2.

[0040] The I-DRX cycle is assumed to be 1280 ms, and the wake-up delay is assumed to be 400 ms or 800 ms. In this case, the delay may occur with a probability of 400 ms / 1280 ms or 800 ms / 1280 ms. Therefore, Option 2 is not well suited for UEs supporting a short wake-up delay (e.g., 30 ms).

[0041] Figure 6 illustrates an example (3) of receiving a low-power signal. As shown in Figure 6, a UE with an excessively long wake-up delay (e.g., 2000 ms) will not be able to receive paging messages at all POs during the Legacy I-DRX cycle. Furthermore, such a UE will not be able to receive paging messages at all POs during LP-WUS monitoring.

[0042] The following is being considered for LP-WUS or WUR.

[0043] An LP-WUS can be designed that is applicable to both IDLE and INACTIVE modes and CONNECTED mode. An OOK (OOK-1 and / or OOK-4) based LP-WUS can be defined that has OFDM sequences overlaid on OOK symbols. The LP-WUS design ensures that the same information is delivered for IDLE and INACTIVE operation regardless of the LP-WUR type, and the OFDM sequences can carry the information. Duty cycle monitoring of the LP-WUS may be supported at least.

[0044] In IDLE and INACTIVE modes, LP-WUS procedures and settings may be defined to indicate paging monitoring triggered by LP-WUS, including at least configuration, subgrouping, and entry or exit conditions for LP-WUS monitoring.

[0045] In IDLE and INACTIVE modes, a periodic LP-SS with Yms of the LP-WUR may be defined for serving cell synchronization and / or RRM. The LP-SS is based on OOK-1 and / or OOK-4 waveforms with or without an overlaid OFDM sequence. Further down-selection between those with and without the overlaid OFDM sequence may be performed. In the case of an LP-WUR capable of receiving an existing PSS / SSS, the existing PSS / SSS may be used for synchronization and RRM instead of the LP-SS. Y may be defined, and 320ms may be supported.

[0046] In IDLE and INACTIVE modes, further RRM relaxation of the UE MR for both serving cell and neighbor cell measurements, and UE serving cell RRM measurements offloaded from the MR to the LP-WUR, including necessary conditions, may be specified.

[0047] In CONNECTED mode, procedures may be defined to allow UE MR PDCCH monitoring triggered by LP-WUS, including procedures for activating and deactivating LP-WUS monitoring.

[0048] In CONNECTED mode, UE MR ultra-deep sleep is not considered, and UE RRM / RLM / BFD / CSI measurements may be performed by MR. The target coverage for LP-WUS and LP-SS may be the coverage of PUSCH in message 3. Optimization of the LP-WUS signal design for idle / inactive mode may take precedence over optimization for connected mode.

[0049] At least a frame-level offset may be provided for the offset value(s) between the LO and the reference PO / PF. The reference point (reference PO / PF) for the frame-level offset may be the start of the PF associated with the LO, or (if mapping of POs from multiple PFs to one LO is supported) the first PF of the PF. Other offset values ​​may be applied to determine the MO within the LO.

[0050] Regarding the offset value(s) between LO and reference PO / PF, the gNB may set one or two offset values, or it may set three offset values. If multiple offset values ​​are set and the gap between LO and the corresponding PO associated with the largest offset value is greater than or equal to the startup delay reported by the UE, the UE may monitor the LO associated with the smallest offset value that has a gap between LO and PO greater than or equal to the startup delay. All UEs that support LP-WUS for idle / inactive mode may support setting two (or three) offset values.

[0051] Regarding the mapping from LOs to POs from a network perspective, UEs corresponding to different POs may monitor the same LO. The maximum number of code points per LO / LP-WUS does not need to be increased. FFS conditions / limits may be specified for mapping multiple POs to a single LO. The maximum number of POs per LO may be down-selected between 2 and 4.

[0052] In NR, one PO is monitored per DRX cycle. In UE, the (i_s+1)th PO in PF is monitored. The SFN of PF is determined as follows:

[0053] PF = (SFN+PF_offset) mod T = (T div N) x (UE_ID mod N)

[0054] SFN: System frame number PF_offset: Offset used for PF determination T: Default value or UE-specific DRX cycle T = {36, 64, 128, 256} [radio frame], or eDRX = {256, 512, 1024} [radio frame] N: Total number of paging frames per T {T, T / 2, T / 4, T / 8, T / 16} UE_ID: 5G-S-TMSI mod 1024 or 5G-S-TMSI mod 4096 for eDRX

[0055] Index(i_s) indicates the index of the PO and is determined as follows:

[0056] i_s: floor(UE_ID / N) mod Ns Ns: number of POs per PF {1, 2, 4}

[0057] Figure 7 shows an example of a PEI in an embodiment of the present invention. As shown in Figure 7, for Paging Early Indication (PEI), UEs that monitor paging within the same PO are divided into subgroups. For each subgroup, there is a Paging Early Indication (PEI) to inform the UE whether it is necessary to further monitor the paging. If no PEI is received, the UE does not monitor the paging. There are two methods for subgrouping PEIs: UE-ID based subgrouping and CN control subgrouping.

[0058] The UE monitors one PEI opportunity per DRX cycle. The reference point for the time position of PEI-O for the UE's PO is provided by the pei-FrameOffset in SIB1.

[0059] pei-FrameOffset is the offset in frames from the start of the reference frame of a PEI-O (PEI occasion) to the start of the first paging frame associated with the PEI-O.

[0060] The maximum number of PFs associated with one PEI monitoring opportunity is two. If one PEI-O is associated with the POs of two PFs, then the two PFs are consecutive PFs. The first PF of the PFs associated with the PEI-O is given by (SFN for PFs) - floor(iPO / Ns) × T / N, where i ＰＯ =((UE_ID mod N)・N ｓ +i ｓ ) mod N ＰＯ ＰＥＩ That is the case.

[0061] The offset is the symbol level offset from the reference point to the start of the first PDCCH MO of this PEI-O, provided in SIB1 by firstPDCCH-MonitoringOccasionOfPEI-O.

[0062] The association between POs and LOs may be resolved. The frame index of the leading PF associated with one LO may be determined. The association between POs and MOs may be resolved. The POs associated with one LO may be determined. The MO index to be monitored within one LO may be determined.

[0063] An LO is an LP-WUS occasion, defined for LP-WUS monitoring. Each LO consists of multiple LP-WUS monitoring occasions (MOs).

[0064] PO stands for Paging Occasion. PF stands for Paging Frame.

[0065] In embodiments of the present invention, the index may start from 0 or from 1.

[0066] The following describes the details of operation 1) the association between LO and PO, and operation 2) the association between MO and PO.

[0067] Figure 8 is a flowchart showing an example of monitoring in an embodiment of the present invention. In step S101, the PO to be monitored is determined based on the LO and MO received from the LP-WUS. In step S102, the determined PO is monitored and paging is received.

[0068] The following describes the details of operation 1) the association between LO and PO.

[0069] A) One or more of the parameters 1)-4) shown below may be notified to the UE.

[0070] 1) The number of POs associated with one LO, e.g., po_NumPerLO. The number of POs associated with one LO is a factor of the total number of POs in the paging cycle, i.e., N × Ns. If the number of POs associated with one LO is greater than the number of POs per PF, the number of POs associated with one LO may be a multiple of Ns. The number of PFs associated with one LO is less than the maximum value N_PF_max, e.g., N_PF_max = 4. The number of PFs associated with one LO is an integer value, e.g., has possible values ​​of {1, 2, 3, 4}.

[0071] 2) The number of POs in a PF, e.g., po_NumPerPF. 3) The number of PFs associated with one LO, e.g., pf_NumPerLO. 4) The index of the PO associated with one LO that the UE monitors, e.g., i_POinLO.

[0072] B) The determination of the SFN of the first PF related to the LO may be carried out in part or all of the following manner: 1)-3)

[0073] 1) When one LO is associated with the PO of multiple PFs, the multiple PFs are consecutive PFs.

[0074] 2) The first PF among the PFs associated with a single LO may be determined by the paging and LO-related parameters. For example, the first PF among the PFs associated with a LO may be (SFN for PF) - floor (i_POinLO / Ns) × T / N, where T: DRX period of the UE, N: total number of paging frames in T, PF_offset: offset used for PF determination, Ns: number of paging opportunities, -SFN for PF: SFN of the PF of the UE, i_POinLO: index of the PO associated with a single LO monitored by the UE. To derive i_POinLO, refer to operation 2B described below.

[0075] 3) The UE may determine the associated LO based on the SFN of the first PF among the consecutive PFs and the offset between the LO and the SFN.

[0076] The following describes the details of operation 2) the association of MO and PO.

[0077] A) The LO payload may be designed as follows:

[0078] When an LO is associated with multiple POs, one or more of the following options regarding payload design may be applied: Option 1: One MO in the LO indicates code points for a subset of subgroups of one associated PO. Option 2: One MO in the LO indicates code points for all subgroups of one associated PO. Option 3: One MO in the LO indicates code points for all subgroups of one, more, or all associated POs of a single PF. Option 4: One MO in the LO indicates code points for all subgroups of all associated POs. Option 5: The above options can be configured by base station instruction.

[0079] For example, the number of MOs (X_MO) with different LP-WUS information for one beam of one LO may be determined by applying one or more of the following options: Option 1: X_MO = subset_NumPerPO × po_NumPerLO Option 2: X_MO = po_NumPerLO Option 3: X_MO = pf_NumPerLO Option 4: X_MO = 1 Note that subset_NumPerPO is the number of subsets of subgroups of one PO. X_MO is an integer such that X_MO ≥ 1. For other parameters, refer to the definition of operation 1).

[0080] When an LO is associated with a single PO, option 1, option 2, or option 3 above may be used.

[0081] The following variations may also be applied.

[0082] Variation 1: For options 2, 3, and 4, a subgroup of one PO may be divided into multiple subsets. The code point of each subset may be indicated by a bit block. In this case, the MO contains multiple bit blocks, each bit block associated with one subgroup subset of one PO. For option 2, there is a bit block of subset_NumPerPO bits in one MO. For option 3, there is a bit block of po_NumPerPF×subset_NumPerPO in one MO. For option 4, there is a bit block of po_NumPerLO×subset_NumPerPO in one MO. Note that the bit blocks in Variation 1 are used to indicate the code point of the LP-WUS information for a subset of a subgroup of one PO.

[0083] Variation 2: For options 3 and 4, all subgroups of a single PO are represented by bit blocks. In this case, the code point in the MO contains multiple bit blocks, each associated with all subgroups of a single PO. For option 4, there is a po_NumPerPF bit block in one MO. For option 5, there is a po_NumPerLO bit block in one MO. Note that the bit block in Variation 2 is used to represent the code point of the LP-WUS information for all subgroups of a single PO.

[0084] It is also possible to apply both Variation 1 and Variation 2.

[0085] B) The determination of the PO index within LO may be performed as follows:

[0086] The UE can determine its PO index having a LO (e.g., i_POinLO) through paging and LO-related parameters. i_POinLO = ((UE_ID mod N) * Ns + i_s) mod po_NumPerLO, where UE_ID is the UE ID and i_s is the PO index in the PF. Other parameters refer to the definitions of operations 1) and 2).

[0087] C) The relationship between MO and PO will be explained below.

[0088] The UE may determine the MO in the LO to be monitored using the parameters shown / derived as operation 1) and operation 2).

[0089] LO contains (N_SSB × X_MO × R) MOs. N_SSB is the number of SSBs actually transmitted. X_MO is the number of MOs with different LP-WUS information in one beam, and the values ​​of X_MO for different options are provided in Proposal 2A). R is the number of MO repetitions. R is an integer, R ≥ 1, and R = 1 if there are no repetitions.

[0090] The UE can identify the index of an MO (e.g., the xth MO) in X_MO using the parameters indicated / derived as operations 1) and 2). Option 1: x = i_POinLO × subset_NumPerPO + i_subset i_subset is the subset index of the UE's subgroups. The subset index of the UE's subgroups can be determined by the UE's subgroup ID and / or subgroup number. Option 2: x = i_POinLO Option 3: x = floor(i_POinLO / Ns), where Ns is the number of POs per PF. In option 3, one MO in LO represents the code point of all subgroups of all relevant POs in one PF. Option 4: x = 0 (the first MO in X_MO MOs)

[0091] The (F)th MO in the LO corresponding to the r-th iteration, the nth transmitted SSB, and the xth MO among the X_MO MOs may be determined as follows:

[0092] The (F)th MO may be determined by the mapping ordering of the MOs, taking into account different SSBs, different LP-WUS information, and repetitions.

[0093] For example, Alt. 1: (F)-th could be [X_MO×N_SSB×r+X_MO×n+x]th. First, locate the MOs of different LP-WUS information, and then, in the final iteration, locate the MOs of different beams.

[0094] For example, Alt. 2: (F)-th could be [X_MO×N_SSB×r+N_SSB×x+n]th. First, locate the MO of a different beam, and then, in the final iteration, locate the MO of a different LP-WUS information.

[0095] D) The association between the MO bit and PO may be determined as follows:

[0096] The UE identifies the bit block in the MO to be monitored using the parameters shown / derived as operations 1) and 2). For options 1 and 2 of operation 2A, there can only be one bit block in the MO. After identifying the MO in the LO as operation 2C), the code point of the MO is applied to the UE.

[0097] Variations that take into account repetition within the MO may be defined as follows: • Multiple bit blocks may exist within the MO, and these bit blocks contain the same information for repetition. • The number of repetitions within the MO (e.g., num_RepInMO) may be shown in the UE. • num_RepInMO is less than the maximum value max_RepInMO, for example max_RepInMO = 4. • num_RepInMO is an integer value that can take values ​​such as {1, 2, 3, 4}.

[0098] In options 3 and 4 of operation 2A, multiple bit blocks may exist within the MO. Each bit block corresponds to a code point of one PO. The UE may identify the bit block index in the MO and then apply the code point of the identified bit block for the UE. The MO contains a Y_Block bit block. For option 3: Y_Block = Ns (i.e., number of POs per PF). For option 4: Y_Block = Ns × pf_NumPerLO (i.e., number of POs per PF * number of PFs per LO).

[0099] The following variations may be defined for the repetitions within MO: Option 3: Y_Block = Ns × num_RepInMO (i.e., num_RepInMO is the number of repetitions within MO) Option 4: Y_Block = Ns × pf_NumPerLO × num_RepInMO.

[0100] The UE can identify the bit block index in MO (e.g., the yth bit block) by using what is shown / derived as operations 1) and 2). For option 3: y = i_s (i.e., the PO index in PF) For option 4: y = i_POinLO (i.e., the PO index in LO)

[0101] The following variations of repetition within MO may be defined:

[0102] Regarding option 3: Alt. 1: y = (i_s × num_RepInMO + r)th bit block, bit block of (i_s)PO with r-th repeat, r = 0, 1, . , num_RepInMO - 1. Alt. 2: y = (r × Ns + i_s)th bit block, bit block of (i_s)PO with r-th repeat, r = 0, 1, . , num_RepInMO - 1.

[0103] Option 4: y = i_POinLO Alt. 1: y = (i_POinLO × num_RepInMO + r)th bit block, bit block of i_POinLO-th PO with r-th repeat, r = 0, 1, . , num_RepInMO - 1. Alt. 2: y = (r × po_NumPerLO + i_POinLO)th bit block, bit block of (i_s)PO with r-th repeat, r = 0, 1, . , num_RepInMO - 1.

[0104] Encoding and rate matching may be performed as follows:

[0105] Alt. 1: Each bit block undergoes separate coding and rate matching. The bits of each bit block are derived using coding and rate matching. When an LP-WUS bit is detected, the UE first identifies the OOK waveform corresponding to the bit block. Then, it performs decoding and derate matching on the identified OOK waveform. It applies the code point indicated by the decoding bit and the derate matching bit.

[0106] Alt. 2: All bit blocks within the MO undergo joint coding and rate matching. Bits in all bit blocks are processed using coding and rate matching. When an LP-WUS bit is detected, the UE first performs decoding and rate matching on all bits in the MO, and then identifies the bit block from the decoded and rate-matched bits. The code point indicated by the bit block is applied.

[0107] Figure 9 shows an example of monitoring (1) in an embodiment of the present invention. As shown in Figure 9, associations between two offsets between LO and PO may be set in the UE. 1LO may be associated with 4PO in 2PF. Operation 2B) may determine the PO index associated with a certain LO based on parameters related to paging and LO (e.g., i_POinLO). Operation 1B) may determine the SFN of the first PF of the PF associated with that LO. The UE may monitor the 2nd PO in the 2nd PF. Note that Figure 9 is an example where 4PF are included in one paging cycle (N=4).

[0108] Figure 10 shows an example (2) of a monitoring signal in an embodiment of the present invention. As shown in Figure 10, 1LO (e.g., N_SSB = 4, MO repetitions = 2, X_MO = 2, Option 3: 1 MO in 1LO corresponds to PO(s) of 1 PF, operation 2C) may be set up with Alt. 1 MO mapping order assumed). Based on operation 2C), the UE monitors the MO in 1LO. Based on operation 2D), the UE monitors bit block #2 in 1MO.

[0109] UE may report the following capabilities: • The ability to indicate whether or not each of the above actions is supported. • The ability to indicate whether or not each of the above options is supported, or whether or not a combination of options is supported. • The ability to indicate whether or not each of the above alternatives (Alt) is supported, or whether or not a combination of options is supported.

[0110] A UE may report the above capabilities for each frequency. A UE may also report capabilities for each UE, each FR, each FR1, each FR2, each FR2-1, each FR2-2, each SCS, each band, each BC (Band Combination), each FC (Feature Set Combination), or each FSPC (Feature Set Per Component Carrier).

[0111] The UE may report the above capabilities for each cell. The UE may also report the capabilities for each UE, each cell, or each TDD and FDD.

[0112] Throughout the above operations, whether or not they apply, which operations apply, and / or which options or alternatives are used may be determined by the following:

[0113] - Set by higher-layer parameters. - Determined by relevant higher-layer parameters. - Notified by MAC-CE or DCI. - Determined based on UE capability. - Determined based on the description of the above operation. - Determined based on the conditions described in the above operation. - Determined by the settings of higher-layer parameters, MAC-CE, DCI and reported UE capability (combination of the above determinations).

[0114] Throughout the above process, multiple options and alternatives (Alt) can be combined into a single option or alternative.

[0115] UE can receive information from the network as follows. The network can be rephrased as BS or gNB.

[0116] - Information via upper-layer signaling (e.g., RRC messages, LPP (LTE Positioning Protocol) messages) - MAC-CE - MAC-CE with a new LCID in the subheader - Extending an existing MAC-CE (e.g., introducing a new octet). - DCI - DCI field: Existing DCI field or newly introduced DCI field - RNTI: DCI with CRC scrambled by existing RNTI or newly introduced RNTI - DCI format: Existing DCI format or newly introduced DCI format - Combinations of the above information

[0117] The UE can receive information from the network in the following periodic types: Opt1: Periodic Opt2: Semi-persistent (triggered by UE or gNB instruction) Opt3: Aperiodic (triggered by UE or gNB instruction)

[0118] The specified period may be any of the following, or it may be determined based on the specified parameters set by BS.

[0119] The prescribed period may be a period of a predetermined time width from a predetermined reference point. The prescribed reference point may be a reference time (SFN, slot number, symbol number) set from the time of transmission / reception of a predetermined DL / UL signal and / or from BS.

[0120] The units in the time direction may also be symbols, slots, wireless frames, system frames, sub-milliseconds, milliseconds, or seconds.

[0121] The predetermined time window is defined by parameters and / or specifications set by the BS and / or determined according to the UE capability, or it may be after a certain delay (application delay, processing delay).

[0122] The predetermined time window is defined by parameters and / or specifications set by BS, and / or determined according to UE capability, and / or varies depending on SCS, and / or varies depending on the UE's Timing Advanced value, and / or may be a time window from a reference point, or from a reference point and / or after a certain delay (application delay, processing delay).

[0123] UE may take a minimum value (using a smaller value) or a maximum value (using a larger value) from a predetermined value to determine a predetermined period. The predetermined value may be 1 symbol / 1 slot / 1 millisecond, or it may be a value determined below.

[0124] A value determined by parameters and / or specifications set by the BS and / or determined by the UE's capability and / or differing by the SCS.

[0125] The specified cell in BS may be any of the following: SpCell (Special Cell), PCell, PSCell during DC, active SCell, or a Cell that meets the specified conditions.

[0126] UE can be in any of the following states: idle, inactive, or RRCconnected, and different actions may be performed depending on the UE state.

[0127] A UE may correspond to and / or report predetermined functions / operations within a predetermined UE capability. The predetermined UE capability may be set at any of the following granularities: UE, FR1, FR2, FR2-1, FR2-2, SCS, band, band combination, feature combination and / or FSPC (Feature Set Per Component-carrier), cell, TDD, FDD unit.

[0128] The specified settings / notifications may be any of the following:

[0129] Configuration / notification may be performed via RRC, MAC-CE, or DCI, and a parameter list configured / notified via RRC, MAC-CE, or DCI may be associated with an identifier (index), and the identifier may be notified to the UE by another notification (MAC-CE, DCI), allowing the UE to determine which parameter lists are activated / applied / used (deactivated, not applied, used).

[0130] Identifiers may be implicitly associated by the order of the list set in the RRC, or they may be associated by explicitly assigning a number.

[0131] The UE may respond to any of the signals with a response signal (NACK, ACK, feedback, retransmission request).

[0132] UE may have multiple parameter lists set, modified, and released by RRC as "AddModlist" and / or "releaselist".

[0133] Settings / notifications may be made via SI / SIB RRC messages, or via individual UE RRC messages (e.g., RRCReconfiguration) for UEs that are connected via RRC.

[0134] Dedicated RRC configuration / RRC release / RRC setup may also be configured / notified.

[0135] The dedicated RRC configuration / RRC release / RRC setup for SS / PBCH / SIB1 / SIBX / one / multiple cells / bands / carriers may be configured / notified.

[0136] The SS / PBCH / SIB1 / SIBX / dedicated RRC configuration / RRC release / RRC setup of one or more cells / bands / carriers may be configured / notified.

[0137] The SS / PBCH / SIB1 / SIBX of one or more cells / bands / carriers may be configured / notified as a dedicated RRC configuration / RRC release / RRC setup.

[0138] The setting / notification may be a predetermined DCI format scrambled with X-RNTI, and X-RNTI may be NES-RNTI, SI-RNTI, or not limited to these, and may also be a new DCI format and / or RNTI.

[0139] For all parameters, the UE may perform default values / actions when not set / notified by the BS, and the default actions may be as follows:

[0140] - Do not perform any action - Repeat the previous action - Perform RRC Release / Perform RRC Re-establishment - Send a specified notification to BS - Send a specified notification to the upper layer of UE

[0141] The default value may be as follows:

[0142] - Always 0 / 1 - The value used immediately before - The value set / notified immediately before - A value (pre-)defined by the specifications - A parameter value from another setting / notification - A predetermined timer value

[0143] For all UE actions #A, the UE may perform a default action #B if an action #A could not be performed.

[0144] The choice of which of the above embodiments to use may be determined by upper-layer parameters, reported from terminal 20 to base station 10 as UE capability, specified by specifications, reported from terminal 20 to base station 10 as UE capability and also determined by upper-layer parameters, or notified by DCI. A base station WUS (Wake up signal) may be used for cell DTX in addition to cell DRX.

[0145] Furthermore, a UE capability indicating whether or not to support cell DTX and cell DRX may be defined. A UE capability indicating whether or not to support dynamic activation or deactivation of cell DTX and cell DRX may be defined. A UE capability indicating whether or not to support cell DTX and cell DRX accompanied by UE DRX or CDRX may be defined.

[0146] Note that Cell DTX / DRX may be replaced with Cell DTX and / or Cell DRX. Activate / Deactivate may be replaced with activate and / or deactivate, activate and / or deactivate, etc.

[0147] In the above-described embodiment, the UE can determine the PF and PO to monitor based on the LO, MO, and bit blocks within MO that receive the LP-WUS.

[0148] In other words, in a wireless communication system, it is possible to determine the time resources associated with LP (Low Power) - WUS (Wake Up Signal).

[0149] (Device Configuration) Next, an example of the functional configuration of the base station 10 and terminal 20 that perform the processes and operations described above will be explained. The base station 10 and terminal 20 include the functions to carry out the above-described embodiment. However, the base station 10 and terminal 20 may each be equipped with only some of the functions in the embodiment.

[0150] <Base Station 10> Figure 11 is a diagram showing an example of the functional configuration of a base station 10 in an embodiment of the present invention. As shown in Figure 11, the base station 10 has a transmitting unit 110, a receiving unit 120, a setting unit 130, and a control unit 140. The functional configuration shown in Figure 11 is merely an example. Any functional classification and functional unit names are acceptable as long as they can perform the operations according to the embodiment of the present invention.

[0151] The transmitting unit 110 includes the function of generating a signal to be transmitted to the terminal 20 and transmitting the signal wirelessly. The transmitting unit 110 also transmits setting information, instructions, and notifications related to the low-power wake-up signal to the terminal 20. The transmitting unit 110 also transmits notifications to the terminal regarding the switching of monitoring operations. The receiving unit 120 includes the function of receiving various signals transmitted from the terminal 20 and obtaining information from the received signals, for example, information from a higher layer. The transmitting unit 110 also has the function of transmitting PSS, SSS, PBCH, DL / UL control signals, etc. to the terminal 20. The receiving unit 120 also receives inter-network node messages from other network nodes.

[0152] The setting unit 130 stores pre-set setting information and various setting information to be transmitted to the terminal 20. The content of the setting information includes, for example, information related to measurements in low-power signals.

[0153] As described in the embodiment, the control unit 140 performs control related to setting, instructing, and notifying about low-power wake-up signals and the like. The signal transmission function unit of the control unit 140 may be included in the transmission unit 110, and the signal reception function unit of the control unit 140 may be included in the reception unit 120.

[0154] <Terminal 20> Figure 12 is a diagram showing an example of the functional configuration of terminal 20 in an embodiment of the present invention. As shown in Figure 12, terminal 20 has a transmitting unit 210, a receiving unit 220, a setting unit 230, and a control unit 240. The functional configuration shown in Figure 12 is merely an example. Any functional classification and functional unit names are acceptable as long as they can perform the operations according to the embodiment of the present invention. The transmitting unit 210 and the receiving unit 220 may be collectively referred to as the communication unit.

[0155] The transmitting unit 210 creates a transmission signal from the transmission data and transmits the transmission signal wirelessly. The transmitting unit 210 also transmits capability information related to the low-power wake-up signal to the base station 10. The receiving unit 220 wirelessly receives various signals and acquires signals from higher layers from the received physical layer signals. The receiving unit 220 also has the function of receiving PSS, SSS, PBCH, DL / UL / SL control signals, etc. transmitted from the base station 10. The receiving unit 220 also receives paging notification information, setting information, instructions, and notifications related to the low-power wake-up signal from the base station 10. For example, the receiving unit 220 receives the low-power wake-up signal from the base station 10. The setting unit 230 stores various setting information received from the base station 10 by the receiving unit 220. The setting unit 230 also stores pre-set setting information. The content of the setting information is, for example, information related to measurements in low-power signals.

[0156] As described in the embodiment, the control unit 240 performs control related to setting, instructing, and notifying of low-power wake-up signals. The signal transmission function unit of the control unit 240 may be included in the transmission unit 210, and the signal reception function unit of the control unit 240 may be included in the reception unit 220.

[0157] (Hardware Configuration) The block diagrams (Figures 11 and 12) used in the description of the above embodiments show functional units. These functional blocks (components) are realized by any combination of at least one of hardware and software. Furthermore, the method of realizing each functional block is not particularly limited. That is, each functional block may be realized using one device that is physically or logically coupled, or it may be realized using two or more physically or logically separated devices that are directly or indirectly connected (for example, using wired or wireless connections). A functional block may be realized by combining the one device or the multiple devices with software.

[0158] Functions include, but are not limited to, judgment, decision, judgment, calculation, calculation, processing, derivation, investigation, exploration, confirmation, reception, transmission, output, access, resolution, selection, selection, establishment, comparison, assumption, expectation, assumption, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating (mapping), and assigning. For example, a functional block (configuration part) that enables transmission is called a transmitting unit or transmitter. In all cases, as mentioned above, the method of implementation is not particularly limited.

[0159] For example, the base station 10, terminal 20, etc. in one embodiment of the present disclosure may function as a computer that processes the wireless communication method of the present disclosure. Figure 13 is a diagram showing an example of the hardware configuration of the base station 10 and terminal 20 according to one embodiment of the present disclosure. The above-mentioned base station 10 and terminal 20 may be physically configured as a computer device including a processor 1001, a storage device 1002, an auxiliary storage device 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, etc.

[0160] In the following explanation, the term "device" can be read as "circuit," "device," "unit," etc. The hardware configuration of the base station 10 and terminal 20 may include one or more of the devices shown in the figure, or it may be configured without some of the devices.

[0161] Each function in the base station 10 and terminal 20 is realized by loading predetermined software (programs) onto hardware such as the processor 1001 and storage device 1002, which allows the processor 1001 to perform calculations, control communication by the communication device 1004, and control at least one of data reading and writing in the storage device 1002 and auxiliary storage device 1003.

[0162] The processor 1001 controls the entire computer, for example, by running an operating system. The processor 1001 may consist of a central processing unit (CPU) that includes interfaces with peripheral devices, control devices, arithmetic units, registers, etc. For example, the control unit 140, control unit 240, etc., described above may be implemented by the processor 1001.

[0163] Furthermore, the processor 1001 reads programs (program code), software modules, or data from at least one of the auxiliary storage device 1003 and the communication device 1004 into the storage device 1002, and executes various processes accordingly. The program used is one that causes the computer to execute at least a part of the operations described in the above embodiment. For example, the control unit 140 of the base station 10 shown in Figure 11 may be implemented by a control program stored in the storage device 1002 and operated by the processor 1001. Also, for example, the control unit 240 of the terminal 20 shown in Figure 12 may be implemented by a control program stored in the storage device 1002 and operated by the processor 1001. Although the above-described processes have been explained as being executed by one processor 1001, they may be executed simultaneously or sequentially by two or more processors 1001. The processor 1001 may be implemented by one or more chips. The program may also be transmitted from the network via a telecommunications line.

[0164] The storage device 1002 is a computer-readable recording medium and may consist of at least one of the following: ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electrically Erasable Programmable ROM), RAM (Random Access Memory), etc. The storage device 1002 may also be called a register, cache, main memory, etc. The storage device 1002 can store executable programs (program code), software modules, etc., for implementing a communication method according to one embodiment of the present disclosure.

[0165] The auxiliary storage device 1003 is a computer-readable recording medium and may consist of at least one of the following: an optical disc such as a CD-ROM (Compact Disc ROM), a hard disk drive, a flexible disk, a magneto-optical disk (e.g., a compact disk, a digital multipurpose disk, a Blu-ray® disk), a smart card, flash memory (e.g., a card, a stick, a key drive), a floppy® disk, a magnetic strip, etc. The above-mentioned storage medium may also be a database, server, or other suitable medium that includes at least one of the storage device 1002 and the auxiliary storage device 1003.

[0166] The communication device 1004 is hardware (transmitting / receiving device) for communicating between computers via at least one of a wired network and a wireless network, and is also referred to as a network device, network controller, network card, communication module, etc. The communication device 1004 may be configured to include, for example, a high-frequency switch, duplexer, filter, frequency synthesizer, etc., in order to implement at least one of frequency division duplex (FDD) and time division duplex (TDD). For example, the transmitting and receiving antenna, amplifier section, transmitting and receiving section, transmission path interface, etc., may be implemented by the communication device 1004. The transmitting and receiving section may be implemented in a physically or logically separated manner, with a transmitting section and a receiving section.

[0167] The input device 1005 is an input device that accepts input from an external source (e.g., a keyboard, mouse, microphone, switch, button, sensor, etc.). The output device 1006 is an output device that outputs to an external source (e.g., a display, speaker, LED lamp, etc.). The input device 1005 and the output device 1006 may be configured as an integrated unit (e.g., a touch panel).

[0168] Furthermore, each device, such as the processor 1001 and the storage device 1002, is connected by a bus 1007 for communicating information. The bus 1007 may be configured using a single bus, or different buses may be configured for each device.

[0169] Furthermore, the base station 10 and terminal 20 may be configured to include hardware such as a microprocessor, a digital signal processor (DSP), an ASIC (Application Specific Integrated Circuit), a PLD (Programmable Logic Device), and an FPGA (Field Programmable Gate Array), and some or all of each functional block may be realized by such hardware. For example, the processor 1001 may be implemented using at least one of these hardware components.

[0170] Figure 14 shows an example of the configuration of vehicle 2001. As shown in Figure 14, 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 this disclosure may be applied to a communication device mounted on vehicle 2001, for example, to the communication module 2013.

[0171] The drive unit 2002 consists of, for example, an engine, a motor, or a hybrid of an engine and a motor. The steering unit 2003 includes at least a steering wheel (also called a handle) and is configured to steer at least one of the front wheels and the rear wheels based on the operation of the steering wheel, which is operated by the user.

[0172] The electronic control unit 2010 consists of a microprocessor 2031, memory (ROM, RAM) 2032, and communication ports (IO ports) 2033. Signals from various sensors 2021 to 2029 installed in the vehicle 2001 are input to the electronic control unit 2010. The electronic control unit 2010 may also be called an ECU (Electronic Control Unit).

[0173] Signals from various sensors 2021 to 2029 include current signals from current sensor 2021 for sensing motor current, front or rear wheel rotation speed signals acquired by rotation speed sensor 2022, front or rear wheel air pressure signals acquired by air pressure sensor 2023, vehicle speed signals acquired by vehicle speed sensor 2024, acceleration signals acquired by acceleration sensor 2025, accelerator pedal depression signals acquired by accelerator pedal sensor 2029, brake pedal depression signals acquired by brake pedal sensor 2026, shift lever operation signals acquired by shift lever sensor 2027, and detection signals acquired by object detection sensor 2028 for detecting obstacles, vehicles, pedestrians, etc.

[0174] The Information Service Unit 2012 consists of various devices for providing (outputting) various types of information such as driving information, traffic information, and entertainment information, including a car navigation system, audio system, speakers, television, and radio, and one or more ECUs that control these devices. The Information Service Unit 2012 uses information acquired from external devices via a communication module 2013, etc., to provide various multimedia information and multimedia services to the occupants of the vehicle 2001. The Information Service Unit 2012 may include input devices that accept input from the outside (e.g., keyboard, mouse, microphone, switch, button, sensor, touch panel, etc.) and output devices that perform output to the outside (e.g., display, speaker, LED lamp, touch panel, etc.).

[0175] The driver assistance system unit 2030 consists of various devices that provide functions to prevent accidents or reduce the driver's workload, such as millimeter-wave radar, LiDAR (Light Detection and Ranging), cameras, positioning locators (e.g., GNSS), map information (e.g., high-definition (HD) maps, autonomous vehicle (AV) maps), gyro systems (e.g., IMU (Inertial Measurement Unit), INS (Inertial Navigation System)), AI (Artificial Intelligence) chips, and AI processors, as well as one or more ECUs that control these devices. The driver assistance system unit 2030 also transmits and receives various information via the communication module 2013 to realize driver assistance functions or autonomous driving functions.

[0176] The communication module 2013 can communicate with the microprocessor 2031 and components of the vehicle 2001 via its communication port. For example, the communication module 2013 sends and receives data via the communication port 2033 between the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, shift lever 2006, front wheels 2007, rear wheels 2008, axle 2009, the microprocessor 2031 and memory (ROM, RAM) 2032 in the electronic control unit 2010, and sensors 2021-29 provided in the vehicle 2001.

[0177] The communication module 2013 is a communication device that can be controlled by the microprocessor 2031 of the electronic control unit 2010 and can communicate with external devices. For example, it can send and receive various types of information with external devices via wireless communication. The communication module 2013 may be located either inside or outside the electronic control unit 2010. The external device may be, for example, a base station or a mobile station.

[0178] The communication module 2013 may transmit at least one of the following to an external device via wireless communication: signals from the various sensors 2021-2028 input to the electronic control unit 2010, information obtained based on said signals, and information based on input from an external source (user) obtained via the information service unit 2012. The electronic control unit 2010, the various sensors 2021-2028, the information service unit 2012, etc., may also be called input units that accept input. For example, the PUSCH transmitted by the communication module 2013 may include the information based on the above input.

[0179] The communication module 2013 receives various information (traffic information, signal information, inter-vehicle information, etc.) transmitted from an external device and displays it on the information service unit 2012 provided in the vehicle 2001. The information service unit 2012 may also be called an output unit, which outputs information (for example, outputs information to devices such as displays and speakers based on the PDSCH (or data / information decoded from the PDSCH) received by the communication module 2013). The communication module 2013 also stores the various information received from the external device in 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 2021-2029, etc., provided in the vehicle 2001.

[0180] <Configuration relating to this embodiment> (1) A terminal comprising: a receiving unit that receives an LP-WUS (Low-Power Wake Up Signal) from a base station in idle mode or inactive mode; and a control unit that determines a PO (Paging occasion) in a Paging frame (PAF) to be monitored based on the LO (LP-WUS occasion), MO (LP-WUS monitoring occasion) and bit block in MO received from the LP-WUS, wherein the receiving unit is a terminal that receives paging from the base station at the determined PO. (2) The terminal according to paragraph 1, wherein the receiving unit receives a parameter from the base station indicating the number of POs associated with one LO. (3) The terminal according to paragraph 1, wherein when one LO is associated with multiple PFs, the control unit determines the first PF among the multiple PFs based on the number of POs associated with one LO. (Clause 4) The terminal according to Clause 1, wherein the control unit obtains the code points of the associated POs based on the MO within one of the LOs when one LO is associated with multiple POs. (Clause 5) The terminal according to Clause 1, wherein the control unit determines the PO index associated with one LO based on the number of POs associated with the LO. (Clause 6) A communication method in which a terminal performs the following steps: receiving an LP-WUS (Low-Power Wake Up Signal) from a base station in idle mode or inactive mode; determining a PO (Paging occasion) in a Paging frame (PAF) to be monitored based on the LO (LP-WUS occasion), MO (LP-WUS monitoring occasion) and bit block within MO that received the LP-WUS; and receiving paging from the base station at the determined PO.

[0181] In any of the above configurations, the time resources associated with the LP (Low Power) - WUS (Wake Up Signal) can be determined in the wireless communication system. Furthermore, according to paragraphs 2 to 5, the UE can determine the PF and PO to monitor based on the LO, MO, and bit blocks within MO that receive the LP - WUS.

[0182] (Supplement to Embodiments) Embodiments of the present invention have been described above, but the disclosed invention is not limited to such embodiments, and those skilled in the art will understand various modifications, alterations, alternatives, substitutions, etc. Specific numerical examples have been used to facilitate understanding of the invention, but unless otherwise specified, these numerical values ​​are merely examples, and any appropriate values ​​may be used. The division of items in the above description is not essential to the present invention, and matters described in two or more items may be combined as needed, and matters described in one item may be applied to matters described in another item (as long as they do not contradict each other). The boundaries of functional units or processing units in the functional block diagram do not necessarily correspond to the boundaries of physical parts. The operation of multiple functional units may be physically performed by one part, or the operation of one functional unit may be physically performed by multiple parts. The processing procedures described in the embodiments may be rearranged as long as they do not contradict each other. For the convenience of explaining the processing, the base station 10 and terminal 20 have been described using functional block diagrams, but such devices may be realized in hardware, software, or a combination thereof. The software operated by the processor of the base station 10 according to an embodiment of the present invention and the software operated by the processor of the terminal 20 according to an embodiment of the present invention may be stored in any suitable storage medium such as random access memory (RAM), flash memory, read-only memory (ROM), EPROM, EEPROM, register, hard disk (HDD), removable disk, CD-ROM, database, server, or other appropriate storage medium.

[0183] Furthermore, notification of information is not limited to the embodiments described herein and may be carried out by other means. For example, notification of information may be carried out by physical layer signaling (e.g., DCI (Downlink Control Information), UCI (Uplink Control Information)), upper layer signaling (e.g., RRC (Radio Resource Control) signaling, MAC (Medium Access Control) signaling), broadcast information (MIB (Master Information Block), SIB (System Information Block)), other signals, or combinations thereof. Also, RRC signaling may be called RRC messages, and may be, for example, RRC Connection Setup messages, RRC Connection Reconfiguration messages, etc.

[0184] Each aspect / embodiment described in this disclosure may be applied to at least one of the following systems: LTE (Long Term Evolution), LTE-A (LTE-Advanced), SUPER 3G, IMT-Advanced, 4G (4th generation mobile communication system), 5G (5th generation mobile communication system), FRA (Future Radio Access), NR (new Radio), W-CDMA®, GSM®, CDMA2000, UMB (Ultra Mobile Broadband), IEEE 802.11 (Wi-Fi®), IEEE 802.16 (WiMAX®), IEEE 802.20, UWB (Ultra-WideBand), Bluetooth®, and other appropriate systems, as well as next-generation systems extended based thereon. Furthermore, multiple systems may be applied in combination (for example, a combination of at least one of LTE and LTE-A with 5G).

[0185] The processing procedures, sequences, flowcharts, etc., of each aspect / embodiment described herein may be reordered, provided they are consistent with each other. For example, the methods described herein present various step elements in an exemplary order and are not limited to that specific order.

[0186] In this specification, specific operations performed by the base station 10 may, in some cases, be performed by its upper node. In a network consisting of one or more network nodes having a base station 10, it is clear that various operations performed for communication with the terminal 20 can be performed by the base station 10 and at least one of the other network nodes (for example, an MME or S-GW, but not limited to these). Although the above example illustrates the case where there is one other network node besides the base station 10, the other network node may be a combination of multiple other network nodes (for example, an MME and an S-GW).

[0187] The information or signals described in this disclosure may be output from a higher layer (or lower layer) to a lower layer (or higher layer). They may also be input and output via multiple network nodes.

[0188] Input and output information may be stored in a specific location (e.g., memory) or managed using a management table. Input and output information may be overwritten, updated, or appended to. Output information may be deleted. Input information may be transmitted to other devices.

[0189] The determination in this disclosure may be made by a value represented by one bit (0 or 1), by a Boolean value (true or false), or by a numerical comparison (for example, a comparison with a predetermined value).

[0190] Software should be broadly interpreted to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, functions, and so on, whether they are called software, firmware, middleware, microcode, hardware description languages, or by any other name.

[0191] Furthermore, software, instructions, information, etc., may be transmitted and received via a transmission medium. For example, if software is transmitted from a website, server, or other remote source using at least one of wired technology (such as coaxial cable, fiber optic cable, twisted pair, or digital subscriber line (DSL)) and wireless technology (such as infrared or microwave), then at least one of these wired and wireless technologies is included in the definition of a transmission medium.

[0192] The information, signals, etc. described in this disclosure may be represented using any of the various different techniques. For example, the data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description may be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, optical fields or photons, or any combination thereof.

[0193] In addition, terms used in this disclosure and terms necessary for understanding this disclosure may be replaced with terms having the same or similar meanings. For example, at least one of the channel and symbol may be a signal (signaling). Also, a signal may be a message. Furthermore, a component carrier (CC) may be called a carrier frequency, cell, frequency carrier, etc.

[0194] The terms “system” and “network” as used in this disclosure are interchangeable.

[0195] Furthermore, the information, parameters, etc., described in this disclosure may be expressed using absolute values, relative values ​​from a given value, or other corresponding information. For example, wireless resources may be indicated by an index.

[0196] The names used for the parameters described above are not restrictive in any way. Furthermore, the formulas and other expressions using these parameters may differ from those expressly disclosed in this disclosure. Various channels (e.g., PUCCH, PDCCH, etc.) and information elements can be identified by any suitable name, and therefore, the various names assigned to these various channels and information elements are not restrictive in any way.

[0197] In this disclosure, terms such as "Base Station (BS)", "wireless base station", "base station equipment", "fixed station", "NodeB", "eNodeB (eNB)", "gNodeB (gNB)", "access point", "transmission point", "reception point", "transmission / reception point", "cell", "sector", "cell group", "carrier", and "component carrier" may be used interchangeably. Base stations may also be referred to by terms such as macrocell, small cell, femtocell, and picocell.

[0198] A base station can accommodate one or more (e.g., three) cells. If a base station accommodates multiple cells, the entire coverage area of ​​the base station can be divided into multiple smaller areas, each of which may also be provided with communication services by a base station subsystem (e.g., a Remote Radio Head (RRH)). The terms “cell” or “sector” refer to part or all of the coverage area of ​​at least one of the base station and / or base station subsystems that provide communication services in that coverage.

[0199] In this disclosure, the transmission of information by a base station to a terminal may be interpreted as the base station instructing the terminal to perform control or operation based on the information.

[0200] In this disclosure, terms such as "Mobile Station (MS)," "user terminal," "User Equipment (UE)," and "terminal" may be used interchangeably.

[0201] A mobile station may also be referred to by those skilled in the art as a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or several other appropriate terms.

[0202] At least one of the base station and the mobile station may be called a transmitting device, a receiving device, a communication device, etc. At least one of the base station and the mobile station may also be a device mounted on a mobile body, the mobile body itself, etc. The mobile body refers to a movable object, and its speed of movement is arbitrary. This also includes the case when the mobile body is stationary. The mobile body includes, but is not limited to, vehicles, transport vehicles, automobiles, motorcycles, bicycles, connected cars, excavators, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, handcarts, rickshaws, ships and other watercraft, airplanes, rockets, satellites, drones (registered trademark), multicopters, quadcopters, balloons, and items mounted on them. The mobile body may also be a mobile body that moves autonomously based on operation commands. It may be a vehicle (e.g., a car, an airplane, etc.), an unmanned mobile body (e.g., a drone, an autonomous vehicle, etc.), or a robot (manned or unmanned). Furthermore, at least one of the base station and the mobile station may include devices that do not necessarily move during communication operations. For example, at least one of the base station and the mobile station may be an IoT (Internet of Things) device such as a sensor.

[0203] Furthermore, the term "base station" in this disclosure may be interpreted as "user terminal." For example, the various aspects / embodiments of this disclosure may be applied to a configuration in which communication between a base station and a user terminal is replaced with communication between multiple terminals 20 (which may be called, for example, D2D (Device-to-Device), V2X (Vehicle-to-Everything), etc.). In this case, the terminals 20 may have the functions that the base station 10 has. Also, terms such as "uplink" and "downlink" may be interpreted as terms corresponding to terminal-to-terminal communication (for example, "side"). For example, uplink channel, downlink channel, etc., may be interpreted as side channel.

[0204] Similarly, the term "user terminal" in this disclosure may be replaced with "base station." In this case, the base station may be configured to have the same functions as the user terminal described above.

[0205] As used in this disclosure, the terms “determining” and “determining” may encompass a wide variety of actions. “Determining” may include, for example, judging, calculating, computing, processing, deriving, investigating, looking up, searching, or inquiring (e.g., searching in a table, database, or other data structure), or ascertaining. “Determining” may also include receiving (e.g., receiving information), transmitting (e.g., sending information), inputting, outputting, or accessing (e.g., accessing data in memory). Furthermore, "judgment" and "decision" can include considering something as having been "judged" or "decided" after resolving, selecting, choosing, establishing, comparing, etc. In other words, "judgment" and "decision" can include considering something as having been "judged" or "decided" after some action. Also, "judgment (decision)" can be reinterpreted as "assuming," "expecting," or "considering."

[0206] The terms “connected,” “coupled,” or any variation thereof, mean any direct or indirect connection or coupling between two or more elements, and may include the presence of one or more intermediate elements between two elements that are “connected” or “coupled” with each other. The coupling or connection between elements may be physical, logical, or a combination thereof. For example, “connection” may be reinterpreted as “access.” As used in this disclosure, two elements may be considered to be “connected” or “coupled” with each other using at least one of one or more wires, cables, and printed electrical connections, and, in some non-limiting and non-exclusive examples, electromagnetic energy having wavelengths in the radio frequency domain, microwave domain, and optical (both visible and invisible) domain.

[0207] The reference signal can also be abbreviated as RS (Reference Signal), and may be called a pilot depending on the applicable standard.

[0208] In this disclosure, the phrase "based on" does not mean "based solely on" unless otherwise specified. In other words, the phrase "based on" means both "based solely on" and "based at least on."

[0209] Any reference to elements using the designations “first,” “second,” etc., as used in this disclosure does not generally limit the quantity or order of those elements. These designations may be used in this disclosure as a convenient way to distinguish between two or more elements. Accordingly, references to the first and second elements do not imply that only two elements may be employed, or that the first element must precede the second element in any way.

[0210] In the configuration of each of the above devices, "means" may be replaced with "part," "circuit," "device," etc.

[0211] Where the terms “include,” “including,” and variations thereof are used in this disclosure, these terms are intended to be inclusive, as is the term “comprising.” Furthermore, the term “or” as used in this disclosure is not intended to mean exclusive OR.

[0212] A wireless frame may consist of one or more frames in the time domain. Each of these frames in the time domain may be called a subframe. A subframe may further consist of one or more slots in the time domain. A subframe may have a fixed time length (e.g., 1 ms) that is independent of numerology.

[0213] Numerical logic may be communication parameters applied to at least one of the transmission and reception of a signal or channel. Numerical logic may include, for example, at least one of the following: subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, radio frame configuration, specific filtering processes performed by the transceiver in the frequency domain, and specific windowing processes performed by the transceiver in the time domain.

[0214] A slot may consist of one or more symbols in the time domain (such as OFDM (Orthogonal Frequency Division Multiplexing) symbols, SC-FDMA (Single Carrier Frequency Division Multiple Access) symbols, etc.). A slot may also be a time unit based on neurologic.

[0215] A slot may include multiple minislots. Each minislot may consist of one or more symbols in the time domain. Minislots may also be called subslots. Minislots may consist of fewer symbols than a slot. A PDSCH (or PUSCH) transmitted in a time unit larger than a minislot may be called a PDSCH (or PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using a minislot may be called a PDSCH (or PUSCH) mapping type B.

[0216] Wireless frames, subframes, slots, minislots, and symbols all represent units of time when transmitting a signal. Different names may be used for each of these terms.

[0217] 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. In other words, at least one of a subframe and a TTI may be a subframe in existing LTE (1 ms), a period shorter than 1 ms (e.g., 1-13 symbols), or a period longer than 1 ms. Note that the unit representing the TTI may be called a slot, minislot, etc., instead of a subframe.

[0218] Here, TTI refers to, for example, the smallest time unit for scheduling in wireless communication. For example, in an LTE system, the base station schedules each terminal 20 to allocate wireless resources (such as the frequency bandwidth and transmission power available to each terminal 20) in TTI units. However, the definition of TTI is not limited to this.

[0219] TTI may be a transmission time unit for channel-encoded data packets (transport blocks), code blocks, code words, etc., or it may be a processing unit for scheduling, link adaptation, etc. When a TTI is given, the actual time interval (e.g., number of symbols) in which the transport block, code block, code word, etc. are mapped may be shorter than the TTI.

[0220] Furthermore, if one slot or one mini-slot is referred to as a TTI, then one or more TTIs (i.e., one or more slots or one or more mini-slots) may constitute the minimum time unit for scheduling. In addition, the number of slots (number of mini-slots) that constitute this minimum time unit for scheduling may be controlled.

[0221] A TTI with a time length of 1 ms may be called a normal TTI, a long TTI, a normal subframe, a long subframe, a slot, etc. A TTI shorter than a normal TTI may be called a shortened TTI, a short TTI, a partial or fractional TTI, a shortened subframe, a short subframe, a mini slot, a sub slot, a slot, etc.

[0222] Furthermore, long TTIs (e.g., normal TTIs, subframes, etc.) may be interpreted as TTIs with a time length exceeding 1 ms, and short TTIs (e.g., shortened TTIs, etc.) may be interpreted as TTIs with a TTI length less than that of a long TTI but 1 ms or more.

[0223] A resource block (RB) is a resource allocation unit in the time domain and frequency domain, and in the frequency domain, it may contain one or more consecutive subcarriers. The number of subcarriers in an RB may be the same regardless of the neurology, for example, 12. The number of subcarriers in an RB may be determined based on the neurology.

[0224] Furthermore, the time domain of the RB may contain one or more symbols and may be the length of one slot, one minislot, one subframe, or one TTI. One TTI, one subframe, etc., may each consist of one or more resource blocks.

[0225] One or more RBs may also be called a Physical RB (PRB), Sub-Carrier Group (SCG), Resource Element Group (REG), PRB pair, RB pair, etc.

[0226] Furthermore, a resource block may consist of one or more resource elements (REs). For example, one RE may be a radio resource area comprising one subcarrier and one symbol.

[0227] A Bandwidth Part (BWP), also known as a partial bandwidth, may represent a subset of consecutive common resource blocks (RBs) for a particular neurology in a given carrier. These common RBs may be identified by an index of the RBs relative to a common reference point of the carrier. The PRBs may be defined and numbered within a given BWP.

[0228] A BWP may include a BWP for UL (UL BWP) and a BWP for DL ​​(DL BWP). One or more BWPs may be set within a single carrier for a UE.

[0229] At least one of the configured BWPs may be active, and the UE does not need to assume that it will transmit or receive a predetermined signal / channel outside of the active BWP. In this disclosure, terms such as "cell" and "carrier" may be read as "BWP".

[0230] The structures described above, such as wireless frames, subframes, slots, minislots, and symbols, are merely illustrative. For example, the number of subframes included in a wireless frame, the number of slots per subframe or wireless frame, the number of minislots included in a slot, the number of symbols and RBs included in a slot or minislot, the number of subcarriers included in an RB, and the number of symbols, symbol length, and cyclic prefix (CP) length within a TTI can be varied in various ways.

[0231] In this disclosure, if articles are added through translation, such as a, an, and the in English, this disclosure may include the fact that the noun following these articles is plural.

[0232] In this disclosure, the term "A and B are different" may mean "A and B are different from each other." The term may also mean "A and B are each different from C." Terms such as "separate" and "combine" may be interpreted similarly to "different."

[0233] Each aspect / embodiment described in this disclosure may be used individually, in combination, or switched between as needed during implementation. Furthermore, notification of specific information (e.g., notification that "X is") is not limited to explicit notification, but may also be implicit (e.g., by not providing such notification).

[0234] Although the present disclosure has been described in detail above, it will be clear to those skilled in the art that the present disclosure is not limited to the embodiments described herein. The present disclosure can be implemented in modified and altered forms without departing from the intent and scope of the present disclosure as defined by the claims. Therefore, the descriptions in the present disclosure are illustrative and not intended to be restrictive in any way.

[0235] This international patent application claims priority based on Japanese Patent Application No. 2025-054608, filed on 27 March 2025, and the entire contents of Japanese Patent Application No. 2025-054608 are incorporated herein by reference.

[0236] 10 Base station 110 Transmitting unit 120 Receiving unit 130 Setting unit 140 Control unit 20 Terminal 210 Transmitting unit 220 Receiving unit 230 Setting unit 240 Control unit 1001 Processor 1002 Storage device 1003 Auxiliary storage device 1004 Communication device 1005 Input device 1006 Output device 2001 Vehicle 2002 Drive unit 2003 Steering unit 2004 Accelerator pedal 2005 Brake pedal 2006 Shift lever 2007 Front wheel 2008 Rear wheel 2009 Axle 2010 Electronic control unit 2012 Information service unit 2013 Communication module 2021 Current sensor 2022 Rotation speed sensor 2023 Air pressure sensor 2024 Vehicle speed sensor 2025 Acceleration sensor 2026 Brake pedal sensor 2027 Shift lever sensor 2028 Object detection sensor 2029 Accelerator pedal sensor 2030 Driver assistance system unit 2031 Microprocessor 2032 Memory (ROM, RAM) 2033 Communication port (I / O port)

Claims

1. A terminal comprising: a receiving unit that receives an LP-WUS (Low-Power Wake Up Signal) from a base station in idle mode or inactive mode; and a control unit that determines a PO (Paging occasion) in a Paging frame (PF) to be monitored based on the LO (LP-WUS occasion), MO (LP-WUS monitoring occasion), and bit blocks within MO received from the LP-WUS, wherein the receiving unit receives paging from the base station at the determined PO.

2. The terminal according to claim 1, wherein the receiving unit receives a parameter indicating the number of POs associated with one LO from the base station.

3. The terminal according to claim 1, wherein, when one LO is associated with multiple PFs, the control unit determines the first PF among the multiple PFs based on the number of POs associated with one LO.

4. The terminal according to claim 1, wherein the control unit acquires the code points of the associated POs based on the MO within one of the LOs when one LO is associated with multiple POs.

5. The terminal according to claim 1, wherein the control unit determines the PO index associated with one of the LOs based on the number of POs associated with the LO.

6. A communication method in which a terminal performs the following steps: receiving an LP-WUS (Low-Power Wake Up Signal) from a base station in idle mode or inactive mode; determining a PO (Paging occasion) in a PF (Paging frame) to be monitored based on the LO (LP-WUS occasion), MO (LP-WUS monitoring occasion) and bit blocks within MO in which the LP-WUS was received; and receiving paging from the base station at the determined PO.

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