Terminal and communication method

Abstract

The terminal comprises: a control unit, which determines a notification indicating whether to monitor a paging opportunity and a position and a number of synchronization signals on wireless resources for receiving the notification; and a receiving unit, which receives the synchronization signal and the notification according to the determined position and number, and determines whether to monitor the paging opportunity according to the notification.

Description

Technical Field

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

[0002] In the successor system of LTE (Long Term Evolution), namely NR (New Radio) (also called "5G"), technologies that meet the requirements such as large-capacity systems, high data transmission speeds, low latency, simultaneous connection of multiple terminals, low costs, and power saving are studied (for example, non-patent document 1).

[0003] In NR version 17, the use of a higher frequency band than in previous versions (e.g., non-patent document 2) is studied. For example, applicable parameter sets including subcarrier spacing, channel bandwidth, etc., the design of the physical layer, and failures assumed in actual wireless communications in the frequency band of 52.6 GHz to 71 GHz are studied.

[0004] Prior art literature

[0005] Non-patent literature

[0006] Non-patent document 1: 3GPP TS 38.300 V16.2.0 (2020-07)

[0007] Non-patent document 2: 3GPP TS 38.306 V16.1.0 (2020-07) Summary of the invention

[0008] Problem that the invention aims to solve

[0009] In NR version 17, the enhancement of power consumption reduction is studied. For example, as a power reduction in idle or inactive state, it is studied to notify whether it is necessary to monitor the PDCCH (Physical Downlink Control Channel) before the paging occasion (PO). However, the location of configuring this notification on the radio resources has not yet been determined.

[0010] The present invention has been made in view of the above circumstances, and in a wireless communication system, it is possible to determine the allocation of a notification indicating whether to monitor a paging occasion on wireless resources.

[0011] Means used to solve problems

[0012] According to the disclosed technology, a terminal is provided, which comprises: a control unit, which determines a notification indicating whether to monitor a paging opportunity and a position and a number of synchronization signals used to receive the notification on wireless resources; and a receiving unit, which receives the synchronization signal and the notification according to the determined position and number, and decides whether to monitor the paging opportunity according to the notification.

[0013] Effects of the Invention

[0014] According to the disclosed technology, in a wireless communication system, it is possible to determine the allocation of a notification indicating whether to monitor a paging occasion on wireless resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a diagram showing a configuration example of a wireless communication system in an embodiment of the present invention.

[0016] Figure 2 is a diagram showing an example (1) of paging early notification.

[0017] Figure 3 is a diagram showing example (2) of paging early notification.

[0018] Figure 4 is a diagram showing example (3) of paging early notification.

[0019] Figure 5 is a diagram showing example (4) of paging early notification.

[0020] Figure 6 This is a diagram showing an example (1) of paging early notification in the embodiment of the present invention.

[0021] Figure 7 This is a diagram showing example (2) of paging early notification in the embodiment of the present invention.

[0022] Figure 8 This is a diagram showing example (3) of paging early notification in the embodiment of the present invention.

[0023] Fig. 9 This is a diagram showing example (4) of paging early notification in the embodiment of the present invention.

[0024] Fig.10 This is a diagram for explaining a configuration example (1) of a paging early notification in an embodiment of the present invention.

[0025] Fig.11 This is a flowchart for explaining the processing related to the paging early notification in the embodiment of the present invention.

[0026] Fig.12This is a diagram for explaining a configuration example (2) of the early notification of paging in an embodiment of the present invention.

[0027] Fig.13 This is a diagram for explaining a configuration example (3) of the early notification of paging in an embodiment of the present invention.

[0028] Fig.14 This is a diagram for explaining a configuration example (4) of the early notification of paging in an embodiment of the present invention.

[0029] Fig.15 This is a diagram for explaining a configuration example (5) of the early notification of paging in an embodiment of the present invention.

[0030] Fig.16 This is a diagram for explaining an operation example (1) of early paging notification in an embodiment of the present invention.

[0031] Fig.17 This is a diagram for explaining an operation example (2) of early paging notification in an embodiment of the present invention.

[0032] Fig.18 This is a diagram for explaining the operation example (3) of the early notification of paging in the embodiment of the present invention.

[0033] Fig.19 This is a diagram for explaining the action example (4) of the early notification of paging in the embodiment of the present invention.

[0034] Fig. 20 It is a diagram showing an example of the functional configuration of the base station 10 in the embodiment of the present invention.

[0035] Fig.21 This is a diagram showing an example of the functional configuration of the terminal 20 in the embodiment of the present invention.

[0036] Fig. 22 This is a diagram showing an example of the hardware configuration of the base station 10 or the terminal 20 in the embodiment of the present invention. DETAILED DESCRIPTION

[0037] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In addition, the embodiment described below is only an example, and the embodiment to which the present invention is applied is not limited to the following embodiment.

[0038] The wireless communication system of the embodiment of the present invention may appropriately use existing technologies when operating. The existing technologies are, for example, existing LTE, but are not limited to existing LTE. In addition, unless otherwise specified, the term "LTE" used in this specification has a broad meaning including LTE-Advanced and subsequent methods (e.g., NR) of LTE-Advanced.

[0039] In addition, 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) used in existing LTE are used. This is for the sake of convenience of explanation, and the same signals, functions, etc. as them may also be referred to by other names. In addition, the above terms in NR correspond to NR-SS, NR-PSS, NR-SSS, NR-PBCH, NR-PRACH, etc. However, even signals used in NR are not necessarily explicitly stated as "NR-".

[0040] Furthermore, in the embodiments of the present invention, the duplexing method may be a TDD (Time Division Duplex) method, an FDD (Frequency Division Duplex) method, or other methods (for example, Flexible Duplex, etc.).

[0041] In the embodiment of the present invention, “configuring” wireless parameters and the like may be pre-configuring predetermined values, or may be configuring wireless parameters notified from the base station 10 or the terminal 20 .

[0042] Figure 1 1 is a diagram showing a configuration example of a wireless communication system in an embodiment of the present invention. Figure 1 As shown, the wireless communication system in the embodiment of the present invention includes a base station 10 and a terminal 20 . Figure 1 In the figure, one base station 10 and one terminal 20 are respectively shown, but this is only an example, and there may be a plurality of each.

[0043] The base station 10 is a communication device that provides more than one cell and performs wireless communication with the terminal 20. The physical resources of the wireless signal are defined by the time domain and the frequency domain. The time domain can be defined by the number of OFDM (Orthogonal Frequency Division Multiplexing) symbols, and the frequency domain can be defined by the number of subcarriers or resource blocks. The base station 10 sends a synchronization signal and system information to the terminal 20. Synchronization signals are, for example, NR-PSS and NR-SSS. System information is sent, for example, through NR-PBCH, also known as broadcast information. The synchronization signal and system information can be referred to as SSB (SS / PBCHblock: SS / PBCH block). As Figure 1 As shown, the base station 10 sends a control signal or data to the terminal 20 via DL (Downlink), and receives a control signal or data from the terminal 20 via UL (Uplink). Both the base station 10 and the terminal 20 can perform beamforming to send and receive signals. In addition, both the base station 10 and the terminal 20 can apply MIMO (Multiple Input Multiple Output)-based communications to DL or UL. In addition, both the base station 10 and the terminal 20 can communicate via a secondary cell (SCell: Secondary Cell:) and a primary cell (PCell: Primary Cell) based on CA (Carrier Aggregation). In addition, the terminal 20 can communicate via the primary cell of the base station 10 based on DC (Dual Connectivity) and the primary and secondary cell group cells (PSCell: Primary Secondary cell group Cell) of other base stations 10.

[0044] The terminal 20 is a communication device having a wireless communication function, such as a smart phone, a mobile phone, a tablet computer, a wearable terminal, or an M2M (Machine-to-Machine) communication module. Figure 1 As shown, the terminal 20 receives a control signal or data from the base station 10 via DL and sends a control signal or data to the base station 10 via UL, thereby utilizing various communication services provided by the wireless communication system. In addition, the terminal 20 receives various reference signals sent from the base station 10 and performs measurement of propagation path quality based on the reception result of the reference signal.

[0045] Among them, in NR version 17, the case of enhancing power consumption reduction while taking into account the system performance is studied. For example, the study is to minimize the impact on system overhead while notifying the terminal 20 in idle mode or inactive mode of information indicating the transmission timing of TRS (Tracking reference signal) or CSI-RS (Channel state information reference signal) that can be used in connected mode.

[0046] Furthermore, for example, as a power reduction in an idle state or an inactive state, a case of notifying whether it is necessary to monitor a PDCCH (Physical Downlink Control Channel) at a paging occasion (PO) before the paging occasion (PO) is studied.

[0047] Figure 2 is a diagram showing an example (1) of paging early notification. Figure 2 As shown in FIG. 1 , as an enhancement of paging, there is a method of performing early paging indication before PO. The early paging indication notifies whether it is necessary to wake up and monitor the PDCCH in the next PO. Figure 2 As shown, paging early notification is performed based on DCI (Downlink Control Information), RS (Reference signal) or sequence. Hereinafter, "paging early notification" is also described as "early notification".

[0048] Figure 3 2 is a diagram showing an example (2) of early notification of paging. In the idle / inactive mode of NR, multiple SSBs are received for synchronization. The reception quality of multiple terminals 20 belonging to the same cell is different. Therefore, the number of SSBs required for synchronization in each terminal 20 is different. Figure 3 The SSB surrounded by the solid line shows the SSB actually received until synchronization, and the SSB surrounded by the dotted line shows the SSB that has been synchronized and is not used in synchronization. Figure 3 As shown, when the measurement result is good, that is, the reception quality is good, the terminal 20 completes synchronization by receiving one SSB. On the other hand, when the measurement result is poor, that is, the reception quality is poor, synchronization is completed by receiving two or three SSBs.

[0049] Figure 4 3 is a diagram showing an example (3) of paging early notification. It is assumed that the location where the early notification is configured on the wireless resource is SSB and around PO. On the other hand, as described above, the required SSB is unknown so far. If the required number of SSBs is not determined, the location of the early notification cannot be determined. In addition, for example, Figure 4 As shown, compared with the case where the early notification and the SSB are close, power consumption caused by the transfer occurs when the early notification and the SSB are separated in the time domain.

[0050] Figure 5 is a diagram showing an example (4) of paging early notification. Figure 5 As shown, it is necessary to consider the number of SSBs required, etc. to determine the configuration and number of SSBs and early notifications.

[0051] Thus, the terminal 20 can determine the position of the earlier notification according to the position of the SSB and monitor it. For example, the offset from the SSB can be specified or notified. Figure 6 1 is a diagram showing an example (1) of early notification of paging in an embodiment of the present invention. Figure 6 As shown, the offset t from SSB in the time direction can be specified or notified. s,offset .like Figure 6 As shown, early notification can be configured before SSB, and early notification can also be configured after SSB.

[0052] Figure 7 2 is a diagram showing an example (2) of early notification of paging in an embodiment of the present invention. Figure 7 As shown, the frequency offset f from SSB can be specified or notified. s,offset Furthermore, both the offset in the frequency direction and the offset in the time direction can be specified or notified.

[0053] In addition, the terminal 20 can determine the location of the earlier notification based on the location of the PO and monitor it. For example, the offset from the PO can be specified or notified. Figure 8 3 is a diagram showing an example (3) of early notification of paging in an embodiment of the present invention. Figure 8 As shown, the time offset t from PO can be specified or notified. s,offset .like Figure 8 As shown, early notification can be configured before PO.

[0054] Fig. 9 4 is a diagram showing an example (4) of early notification of paging in an embodiment of the present invention. Fig. 9As shown, the frequency offset f from PO can be specified or notified. s,offset In addition, both the offset in the frequency direction and the offset in the time direction may be specified or notified.

[0055] Fig.10 This is a diagram for illustrating a configuration example (1) of an early notification of paging in an embodiment of the present invention. When monitoring early notifications around PO / SSB, the SSB used in the terminal 20 can be appropriately determined based on a predetermined benchmark. As a benchmark, parameters such as RSRP (Reference Signal Received Power), SINR (Signal to Noise Interference Ratio), RSSI (Received Signal Strength Indicator), and RSRQ (Reference Signal Received Quality) can be used. The network side can indicate in advance to the terminal 20 a threshold for determining the number of SSBs based on the above parameters, or the terminal 20 can autonomously determine the SSB based on the threshold.

[0056] like Fig.10 As shown, the early notification can also be configured in a one-to-one manner immediately after each SSB used in synchronization. In the case of a good measurement environment, the terminal 20 can complete synchronization through one SSB and receive the early notification, skipping the subsequent SSB and the early notification. In addition, in the case of a poor measurement environment, the terminal 20 can complete synchronization and receive the early notification through three SSBs. In addition, when the early notification is configured in a one-to-one manner immediately after each SSB, each early notification can be configured according to the offset between the PO.

[0057] As described above, by deciding the SSB to be used, unnecessary SSB and early notification can be skipped, and power consumption caused by transfer or reception can be reduced.

[0058] Fig.11 This is a flowchart for explaining the processing related to the early notification of paging in the embodiment of the present invention. In step S1, the terminal 20 determines whether the reception quality of the SSB is good. If it is determined that the reception quality of the SSB is good according to the above-mentioned criteria, the process proceeds to step S2 ("Yes" of S1), and if it is determined that the reception quality of the SSB is not good, the process proceeds to step S3 ("No" of S1).

[0059] In step S2, the terminal 20 receives the immediately following early notification and proceeds to step S4. On the other hand, in step S3, the terminal 20 skips the immediately following early notification, receives the next SSB and proceeds to step S1. In step S4, the terminal 20 skips the subsequent SSB and early notification.

[0060] Fig.12 This is a diagram for explaining a configuration example (2) of a paging early notification in an embodiment of the present invention. Fig.12 In the example of receiving an early notification by receiving an SSB once, an example of receiving an early notification by receiving an SSB twice, and an example of receiving an early notification by receiving an SSB three times are shown in the order of good measurement results. In the case of receiving an SSB once, the following two SSBs and the early notification are skipped. In the case of receiving an SSB twice, the following one SSB and the early notification are skipped.

[0061] In addition, Fig.12 In the example, each early notification can be configured according to the offset from the PO. In addition, the configuration and number of SSBs and early notifications to be used can be set arbitrarily, and the setting can be indicated from the network or determined by UE installation.

[0062] In addition, if Fig.12 As shown, the early notification may be arranged immediately after all SSBs used for synchronization, or each early notification may be arranged according to an offset from the SSB serving as a reference.

[0063] Fig.13 3 is a diagram for explaining a configuration example (3) of the early notification of paging in an embodiment of the present invention. Fig.13 As shown, the early notification is fixedly configured in a certain time slot based on PO, and the terminal 20 can decide the number of SSBs to be used in consideration of the reception quality. Fig.13 In the example of receiving an early notification by receiving an SSB once, an example of receiving an early notification by receiving an SSB twice, and an example of receiving an early notification by receiving an SSB three times are shown in the order of good measurement results. In the case of receiving an SSB once, the following two SSBs and the early notification are skipped. In the case of receiving an SSB twice, the remaining one SSB and the early notification are skipped.

[0064] In addition, the configuration and number of SSB and early notification to be used can be set arbitrarily, and the setting can be indicated from the network or determined by UE installation.

[0065] Fig.14This is a diagram for explaining the configuration example (4) of the early notification of paging in the embodiment of the present invention. Information related to the configuration of the early notification can be notified to the terminal 20 or can be predetermined. Figure 6 , Figure 7 , Figure 8 as well as Fig. 9 The offset described in the above notifies the terminal 20 of information related to the configuration of the early notification. Fig.14 As shown, it is possible to notify or predetermine the situation where an early notification is configured around the x-th SSB before the PO. Fig.14 This is an example of x=2, and x may be notified or specified in advance.

[0066] In addition, if Fig.14 As shown, the case where an early notification is configured around the SSB of SSB index #y can be notified or pre-specified. Y is notified or pre-specified. In addition, x and y can be combined to notify information related to the configuration of the early notification. For example, the terminal 20 can be notified that an early notification is configured around the SSB index #1 of SSBx=2, which can also be pre-specified.

[0067] Fig.15 1 is a diagram for explaining a configuration example (5) of the early notification of paging in an embodiment of the present invention. Fig.15 As shown, the subgroups used for paging can be used to determine the configuration and number of SSB / early notifications in the paging cycle. The terminal 20 is classified into multiple subgroups according to grouping information. The grouping information is notified through the SIB or specified in advance, so it can be a known value on the terminal 20 side.

[0068] exist Fig.15 In the example shown, the terminal 20 belonging to the group information 1 receives one SSB and receives the early notification, the terminal 20 belonging to the group information 2 receives two SSBs and receives the early notification, and the terminal 20 belonging to the group information 3 receives three SSBs and receives the early notification. Fig.15 As shown, early notification can be configured immediately after the SSB of synchronization completion.

[0069] Fig.16 1 is a diagram for explaining an operation example (1) of early paging notification in an embodiment of the present invention. The terminal 20 can use the information in the paging cycle to determine the configuration and number of SSBs and / or early notifications in the next paging cycle. Fig.16 As shown, the terminal 20 can use information such as measurement results, early notification or grouping information in the paging cycle to determine the number of SSBs in the next paging cycle to be 1, 2 or 3 to receive the early notification.

[0070] As described above, by utilizing the information in the paging cycle, the configuration and number of SSBs and / or early notifications in the next paging cycle are determined, so that the network side does not need to send unnecessary SSBs and early notifications, thereby reducing resources. In addition, the configuration and number of appropriate SSBs and early notifications can be notified to each terminal 20, so that the power consumption caused by transfer or reception can be reduced in each terminal 20.

[0071] Fig.17 FIG. 2 is a diagram for explaining an operation example (2) of early paging notification in an embodiment of the present invention. Fig.17 As shown, the terminal 20 can determine the configuration and number of SSBs and / or early notifications in the next paging cycle according to the result of the serving cell RRM (Radio resource management) measurement in the paging cycle. For example, when the result of the serving cell RRM measurement in the paging cycle is good, the terminal 20 can decide to receive an early notification for receiving one SSB in the next paging cycle, and when the result of the serving cell RRM measurement in the next paging cycle is not good, the terminal 20 can decide to receive an early notification for receiving three SSBs.

[0072] The configuration and number of SSB and early notification used in the next paging cycle can be set arbitrarily and determined according to UE installation or network instructions. In addition, the signal for performing serving cell RRM measurement is arbitrary, for example, it can be SSB, TRS, CSI-RS, etc. In addition, the type of early notification can be arbitrary.

[0073] Fig.18 FIG. 3 is a diagram for explaining an operation example (3) of early paging notification in an embodiment of the present invention. Fig.18 As shown, the terminal 20 can use the information contained in the early notification in the paging cycle to determine the configuration and number of SSBs and / or early notifications in the next paging cycle. For example, the DCI-based early notification can include indication information related to the configuration and number of SSBs and / or early notifications in the next paging cycle.

[0074] The configuration and number of SSBs and early notifications used in the next paging cycle can be set arbitrarily and are determined based on UE installation or network instructions.

[0075] Fig.19 FIG. 4 is a diagram for explaining an operation example (4) of early paging notification in an embodiment of the present invention. Fig.19As shown, the terminal 20 can make use of the grouping related to the paging in the paging cycle to determine the configuration and number of SSBs and / or early notifications in the next paging cycle. For example, the grouping information can be associated with the configuration and number of SSBs and / or early notifications in the next paging cycle. The terminal 20 can determine the configuration and number of SSBs and / or early notifications in the next paging cycle based on the grouping information.

[0076] The configuration and quantity of SSB and early notifications used in the next paging cycle can be set arbitrarily and determined based on UE installation or network instructions.

[0077] Through the above-mentioned embodiment, the terminal 20 can determine the configuration and quantity of the SSB and early notification required for receiving the early notification of paging according to a set or predetermined benchmark. In addition, the terminal 20 can determine the configuration and quantity of the SSB and early notification required for receiving the early notification in the next paging cycle according to the information in the paging cycle.

[0078] That is, in the wireless communication system, it is possible to determine the allocation of the notification indicating whether to monitor the paging occasion on the wireless resources.

[0079] (Device Structure)

[0080] Next, the functional configuration examples of the base station 10 and the terminal 20 that implement the above-described processing and operation are described. The base station 10 and the terminal 20 include functions for implementing the above-described embodiments. However, the base station 10 and the terminal 20 may each include only a part of the functions of the embodiments.

[0081] <Base station 10>

[0082] Fig. 20 FIG. 1 is a diagram showing an example of a functional configuration of a base station 10 in an embodiment of the present invention. Fig. 20 As shown, the base station 10 includes a transmission unit 110 , a reception unit 120 , a setting unit 130 , and a control unit 140 . Fig. 20 The functional configuration shown is only an example, and any functional division and functional unit name may be used as long as the operation according to the embodiment of the present invention can be performed.

[0083] The transmitting unit 110 includes a function of generating a signal to be sent to the terminal 20 side and wirelessly transmitting the signal. In addition, the transmitting unit 110 sends network node messages to other network nodes. The receiving unit 120 includes a function of receiving various signals sent from the terminal 20 and obtaining, for example, higher layer information from the received signals. In addition, the transmitting unit 110 has a function of sending NR-PSS, NR-SSS, NR-PBCH, DL / UL control signals, etc. to the terminal 20. In addition, the receiving unit 120 receives network node messages from other network nodes.

[0084] The setting unit 130 stores preset setting information and various setting information transmitted to the terminal 20. The content of the setting information is, for example, information related to paging setting.

[0085] As described in the embodiment, the control unit 140 performs control related to paging setting. Functional units related to signal transmission in the control unit 140 may be included in the transmission unit 110, and functional units related to signal reception in the control unit 140 may be included in the reception unit 120.

[0086] <Terminal 20>

[0087] Fig.21 FIG. 2 is a diagram showing an example of a functional configuration of the terminal 20 in the embodiment of the present invention. Fig.21 As shown, the terminal 20 includes a transmitting unit 210 , a receiving unit 220 , a setting unit 230 , and a control unit 240 . Fig.21 The functional configuration shown is only an example, and any functional division and functional unit name may be used as long as the operation according to the embodiment of the present invention can be performed.

[0088] The transmitting unit 210 generates a transmission signal according to the transmission data, and transmits the transmission signal wirelessly. The receiving unit 220 receives various signals wirelessly, and obtains a higher layer signal from the received physical layer signal. In addition, the receiving unit 220 has a function of receiving NR-PSS, NR-SSS, NR-PBCH, DL / UL / SL control signals, etc. transmitted from the base station 10. In addition, for example, the transmitting unit 210 transmits PSCCH (Physical Sidelink Control Channel), PSSCH (Physical Sidelink Shared Channel), PSDCH (Physical Sidelink Discovery Channel), PSBCH (Physical Sidelink Broadcast Channel), etc. to other terminals 20 as D2D communication, and the receiving unit 220 receives PSCCH, PSSCH, PSDCH or PSBCH, etc. from other terminals 20.

[0089] The setting unit 230 stores various setting information received by the receiving unit 220 from the base station 10. In addition, the setting unit 230 also stores setting information set in advance. The content of the setting information is, for example, information related to paging setting.

[0090] As described in the embodiment, the control unit 240 performs control related to paging setting. The functional unit related to signal transmission in the control unit 240 may be included in the transmission unit 210, and the functional unit related to signal reception in the control unit 240 may be included in the reception unit 220.

[0091] (Hardware Structure)

[0092] The block diagram used in the description of the above embodiment ( Fig. 20 and Fig.21 ) shows blocks in units of functions. These functional blocks (structural parts) are implemented by any combination of at least one of hardware and software. In addition, there is no particular limitation on the implementation method of each functional block. That is, each functional block can be implemented using a device that is physically or logically combined, or two or more physically or logically separated devices can be directly or indirectly connected (for example, using wires, wirelessly, etc.) and implemented using these multiple devices. The functional block can also be implemented by combining software with the above-mentioned one device or the above-mentioned multiple devices.

[0093] Functionally, it includes judging, deciding, determining, calculating, calculating, processing, deriving, investigating, searching, confirming, receiving, sending, outputting, accessing, solving, selecting, selecting, establishing, comparing, assuming, expecting, regarding, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc., but is not limited to these. For example, the functional block (structural part) that enables the sending function is called a transmitting unit or a transmitter. In short, as mentioned above, there is no particular limitation on the implementation method.

[0094] For example, the base station 10 , the terminal 20 , and the like in one embodiment of the present disclosure may function as a computer that performs processing of the wireless communication method of the present disclosure. Fig. 22 1 is a diagram showing an example of a hardware configuration of a base station 10 and a terminal 20 according to an embodiment of the present disclosure. The base station 10 and the terminal 20 may be configured as a computer device that physically includes 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, and the like.

[0095] In the following description, the word "device" may be replaced by "circuit", "equipment (device)", "unit (unit)", etc. The hardware structure of the base station 10 and the terminal 20 may be configured to include one or more devices shown in the drawings, or may be configured to exclude some devices.

[0096] Each function in the base station 10 and the terminal 20 is implemented by the following method: predetermined software (program) is read into hardware such as the processor 1001 and the storage device 1002, so that the processor 1001 performs calculations and controls the communication of the communication device 1004 or controls at least one of the reading and writing of data in the storage device 1002 and the auxiliary storage device 1003.

[0097] The processor 1001 controls the entire computer by, for example, running an operating system. The processor 1001 may also be composed of a central processing unit (CPU) including an interface with peripheral devices, a control device, a computing device, registers, etc. For example, the control unit 140, the control unit 240, etc. described above may also be implemented by the processor 1001.

[0098] In addition, the processor 1001 reads a program (program code), a software module, or data from at least one of the auxiliary storage device 1003 and the communication device 1004 to the storage device 1002, and performs various processes accordingly. As a program, a program that causes the computer to execute at least a part of the actions described in the above-mentioned embodiments is used. For example, Fig. 20 The control unit 140 of the base station 10 shown may also be implemented by a control program stored in the storage device 1002 and operated by the processor 1001. In addition, for example, Fig.21 The control unit 240 of the terminal 20 shown can also be implemented by a control program stored in the storage device 1002 and operated by the processor 1001. Regarding the above-mentioned various processes, although it is described that the above-mentioned various processes are performed by one processor 1001, the above-mentioned various processes can also be performed simultaneously or sequentially by more than two processors 1001. The processor 1001 can also be installed by more than one chip. In addition, the program can also be sent from the network via a telecommunication line.

[0099] The storage device 1002 is a computer-readable recording medium, and may be composed of at least one of a ROM (Read Only Memory), an EPROM (Erasable Programmable ROM), an EEPROM (Electrically Erasable Programmable ROM), a RAM (Random Access Memory), etc. The storage device 1002 may also be referred to as a register, a cache, a main memory (main storage device), etc. The storage device 1002 can store executable programs (program codes), software modules, etc. for implementing the communication method involved in one embodiment of the present disclosure.

[0100] The auxiliary storage device 1003 is a computer-readable recording medium, and may be composed of at least one of an optical disk such as a CD-ROM (CompactDisc ROM), a hard disk drive, a floppy disk, a magneto-optical disk (e.g., a compressed 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. The above-mentioned storage medium may be, for example, other appropriate media such as a database, a server, etc. that includes at least one of the storage device 1002 and the auxiliary storage device 1003.

[0101] The communication device 1004 is hardware (transceiver device) for communicating between computers via at least one of a wired network and a wireless network, and may be referred to as a network device, a network controller, a network card, a communication module, etc. For example, in order to realize at least one of frequency division duplex (FDD: Frequency Division Duplex) and time division duplex (TDD: Time Division Duplex), the communication device 1004 may also be configured to include a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc. For example, a transceiver antenna, an amplifier, a transceiver, a transmission path interface, etc. may also be realized by the communication device 1004. The transceiver may be installed physically or logically separately in the transmitting unit and the receiving unit.

[0102] The input device 1005 is an input device that receives input from the outside (e.g., a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.). The output device 1006 is an output device that implements output to the outside (e.g., a display, a speaker, an LED light, etc.). In addition, the input device 1005 and the output device 1006 may also be integrally formed (e.g., a touch panel).

[0103] In addition, the processor 1001 and the storage device 1002 and other devices are connected via a bus 1007 for communicating information. The bus 1007 may be configured using a single bus or may be configured using different buses for each device.

[0104] In addition, the base station 10 and the 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 may implement a part or all of each functional block by using the hardware. For example, the processor 1001 may also be installed using at least one of these hardware.

[0105] (Summary of Implementation Methods)

[0106] As described above, according to an embodiment of the present invention, a terminal is provided, which comprises: a control unit, which determines a notification indicating whether to monitor a paging opportunity and a position and a number of synchronization signals for receiving the notification on wireless resources; and a receiving unit, which receives the synchronization signal and the notification according to the determined position and number, and decides whether to monitor the paging opportunity according to the notification.

[0107] Through the above structure, the terminal 20 can determine the configuration and number of SSBs and early notifications required for receiving early notifications of paging according to a set or predetermined benchmark. In addition, the terminal 20 can determine the configuration and number of SSBs and early notifications required for receiving early notifications in the next paging cycle based on information in the paging cycle. That is, in the wireless communication system, it is possible to determine the configuration of notifications indicating whether to monitor paging opportunities on wireless resources.

[0108] The control unit can determine the position of the notification on the wireless resource based on the offset based on the synchronization signal or the paging opportunity. Through this structure, the terminal 20 can determine the configuration and number of SSBs and early notifications required for receiving early notifications of paging based on a set or predetermined benchmark.

[0109] The control unit can determine the location and quantity of the synchronization signal and the notification on the wireless resource according to the reception quality of the synchronization signal. Through this structure, the terminal 20 can appropriately determine the configuration and quantity of the SSB and early notification required for receiving the early notification of the paging according to the communication environment.

[0110] The control unit may determine that the notification is located around the synchronization signal of the number set before the paging opportunity in the time domain, or determine that the notification is located around the synchronization signal corresponding to the index of the synchronization signal. Through this structure, the terminal 20 can determine the configuration and number of SSBs and early notifications required for receiving early notifications of paging based on a set or predetermined benchmark.

[0111] The control unit can determine the location and quantity of the synchronization signal and the notification on the wireless resource in the next paging cycle of the paging cycle based on the information obtained in a certain paging cycle. Through this structure, the terminal 20 can efficiently determine the configuration and quantity of the SSB and early notification required for receiving the early notification of paging based on the information of the previous paging cycle.

[0112] In addition, according to an embodiment of the present invention, a communication method is provided, wherein the communication method is performed by a terminal to perform the following steps: a control step to determine a notification indicating whether to monitor a paging opportunity and a position and a number of synchronization signals used to receive the notification on wireless resources; and a receiving step to receive the synchronization signal and the notification according to the determined position and number, and decide whether to monitor the paging opportunity according to the notification.

[0113] Through the above structure, the terminal 20 can determine the configuration and number of SSBs and early notifications required for receiving early notifications of paging according to a set or predetermined benchmark. In addition, the terminal 20 can determine the configuration and number of SSBs and early notifications required for receiving early notifications in the next paging cycle based on information in the paging cycle. That is, in the wireless communication system, it is possible to determine the configuration of notifications indicating whether to monitor paging opportunities on wireless resources.

[0114] (Supplementary Implementation Methods)

[0115] The above describes the embodiments of the present invention, but the disclosed invention is not limited to such embodiments, and a person skilled in the art should understand various variations, modifications, substitutions, replacements, etc. In order to facilitate the understanding of the invention, specific numerical examples are used for description, but unless otherwise specified, these numerical values ​​are only examples, and any appropriate value may also be used. The distinction between the items in the above description is not essential to the present invention, and the items recorded in more than two items may be used in combination as needed, or the items recorded in a certain item may be applied to the items recorded in other items (as long as there is no contradiction). The boundaries of the functional units or processing units in the functional block diagram do not necessarily correspond to the boundaries of the physical components. The actions of multiple functional units may be physically performed by one component, or the actions of one functional unit may be physically performed by multiple components. With respect to the processing procedures described in the embodiments, the order of processing may be swapped if there is no contradiction. In order to facilitate the description of the processing, the base station 10 and the terminal 20 are described using functional block diagrams, but such devices may also be implemented in hardware, software, or a combination thereof. The software that operates through the processor of the base station 10 according to the embodiment of the present invention and the software that operates through the processor of the terminal 20 according to the embodiment of the present invention may also be stored in random access memory (RAM), flash memory, read-only memory (ROM), EPROM, EEPROM, registers, hard disk (HDD), removable disk, CD-ROM, database, server and any other appropriate storage medium.

[0116] In addition, the notification of information is not limited to the form / implementation method described in the present disclosure, and other methods may also be used. For example, the notification of information may be implemented through physical layer signaling (e.g., DCI (Downlink Control Information), UCI (Uplink Control Information)), high-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 a combination thereof. In addition, RRC signaling may also be referred to as an RRC message, for example, an RRC Connection Setup message, an RRC Connection Reconfiguration message, etc.

[0117] Each form / implementation described in the present disclosure may also be applied to at least one of 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 (registered trademark), GSM (registered trademark), CDMA2000, UMB (Ultra Mobile Broadband), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, UWB (Ultra-WideBand), Bluetooth (registered trademark), systems using other appropriate systems, and next-generation systems extended therefrom. In addition, a combination of a plurality of systems (for example, a combination of at least one of LTE and LTE-A with 5G, etc.) may be applied.

[0118] The processing procedures, timings, flows, etc. of each form / implementation described in this specification may be changed in order without contradiction. For example, for the method described in this disclosure, the elements of various steps are presented in an illustrative order, but are not limited to the specific order presented.

[0119] In this specification, a specific action performed by the base station 10 is sometimes performed by its upper node according to the situation. In a network composed of one or more network nodes having the base station 10, various actions performed to communicate with the terminal 20 can be performed by at least one of the base station 10 and other network nodes other than the base station 10 (for example, MME or S-GW, etc., but not limited to these). In the above, the case where the other network node other than the base station 10 is one is illustrated, but the other network node may also be a combination of multiple other network nodes (for example, MME and S-GW).

[0120] The information or signals described in the present disclosure can be output from a higher layer (or a lower layer) to a lower layer (or a higher layer), and can also be input or output via a plurality of network nodes.

[0121] The input or output information can be stored in a specific location (e.g., memory) or managed using a management table. The input or output information can be rewritten, updated, or appended. The output information can also be deleted. The input information can also be sent to other devices.

[0122] The determination in the present disclosure may be performed by a value represented by 1 bit (0 or 1), by a Boolean value (Boolean: true or false), or by comparison of numerical values ​​(for example, comparison with a predetermined value).

[0123] Software, whether referred to as software, firmware, middleware, microcode, hardware description language, or by other names, shall be interpreted broadly to refer to commands, sets of commands, codes, code segments, program codes, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, functions, etc.

[0124] In addition, software, commands, information, etc. may be sent and received via a transmission medium. For example, when software is sent from a web page, server, or other remote source using at least one of wired technology (coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), etc.) and wireless technology (infrared, microwave, etc.), at least one of these wired technology and wireless technology is included in the definition of transmission medium.

[0125] The information, signals, etc. described in the present disclosure may also be represented by any of a variety of different technologies. For example, data, commands, instructions, information, signals, bits, symbols, chips, etc. that may be involved in the above description as a whole may be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any combination thereof.

[0126] In addition, the terms described in the present disclosure and the terms required for understanding the present disclosure may be replaced with terms having the same or similar meanings. For example, at least one of a channel and a symbol may also be a signal (signaling). In addition, a signal may also be a message. In addition, a component carrier (CC) may be referred to as a carrier frequency, a cell, a frequency carrier, etc.

[0127] The terms "system" and "network" used in this disclosure may be used interchangeably.

[0128] In addition, the information, parameters, etc. described in the present disclosure may be represented by absolute values, relative values ​​to predetermined values, or other corresponding information. For example, wireless resources may also be indicated by indexes.

[0129] The names used for the above parameters are not limiting in any way. Furthermore, the formulas etc. using these parameters may sometimes differ from those explicitly stated in this disclosure. Various channels (e.g., PUCCH, PDCCH, etc.) and information elements may be identified by appropriate names, and therefore the various names assigned to these various channels and information elements are not limiting in any way.

[0130] In the present disclosure, the terms "base station (BS)," "wireless base station", "base station device", "fixed station", "NodeB", "eNodeB (eNB)", "gNodeB (gNB)", "access point", "transmission point", "reception point", "transmission / reception point", "cell", "sector", "cell group", "carrier", "component carrier" and the like are used interchangeably. Base stations are sometimes referred to as macrocells, small cells, femtocells, picocells, etc.

[0131] A base station can accommodate one or more (for example, three) cells. When a base station accommodates multiple cells, the overall coverage area of ​​the base station can be divided into multiple smaller areas, and each smaller area can also provide communication services through a base station subsystem (for example, a small base station for indoor use (RRH: Remote Radio Head)). Terms such as "cell" or "sector" refer to a part or the entirety of the coverage area of ​​at least one of a base station and a base station subsystem that provide communication services within the coverage area.

[0132] In the present disclosure, terms such as “mobile station (MS)”, “user terminal (user terminal)”, “user equipment (UE)”, and “terminal” may be used interchangeably.

[0133] For mobile stations, those skilled in the art sometimes also use the following terms: 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 appropriate terms.

[0134] At least one of the base station and the mobile station may also be referred to as a transmitting device, a receiving device, a communication device, etc. In addition, at least one of the base station and the mobile station may be a device mounted on a mobile body, the mobile body itself, etc. The mobile body may be a means of transportation (e.g., a car, an airplane, etc.), a mobile body that moves in an unmanned manner (e.g., a drone, an autonomous vehicle, etc.), or a robot (manned or unmanned). In addition, at least one of the base station and the mobile station also includes 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.

[0135] In addition, the base station in the present disclosure may also be replaced by a user terminal. For example, with respect to a structure in which the communication between a base station and a user terminal is replaced by the communication between multiple terminals 20 (for example, it may also be referred to as D2D (Device-to-Device), V2X (Vehicle-to-Everything, etc.), the various forms / implementations of the present disclosure may also be applied. In this case, it may also be configured that the terminal 20 has the functions possessed by the above-mentioned base station 10. In addition, terms such as "uplink" and "downlink" may also be replaced by terms corresponding to communication between terminals (for example, "side"). For example, an uplink channel, a downlink channel, etc. may also be replaced by a side channel.

[0136] Likewise, the user terminal in the present disclosure may be replaced by a base station. In this case, the base station may have the functions of the user terminal described above.

[0137] The terms "determining" and "determining" used in the present disclosure sometimes also include situations of various actions. "Judgment" and "determination" may, for example, include situations where matters that have been judged, calculated, calculated, processed, derived, investigated, searched (for example, searched in a table, database or other data structure), confirmed (ascertaining) are considered to be "judged" or "determined". In addition, "judgment" and "determination" may include situations where matters that have been received (for example, receiving information), transmitted (for example, transmitting information), input, output, accessed (for example, accessed data in memory) are considered to be "judged" or "determined". In addition, "judgment" and "determination" may include situations where matters that have been resolved (resolving), selected (selecting), chosen (choosing), established (establishing), compared (comparing), etc. are considered to be "judged" or "determined". That is, "judgment" and "decision" can include "judgment" and "decision" of any action. In addition, "judgment (decision)" can be replaced by "assuming (assuming)", "expecting (expecting)", "considering (considering)".

[0138] The terms "connected", "coupled" or all variations of these terms are intended to indicate any direct or indirect connection or combination between two or more elements, and may include the situation where there is one or more intermediate elements between two elements that are "connected" or "coupled" to each other. The combination or connection between elements may be a physical combination or connection, a logical combination or connection, or a combination of these. For example, "access" may be used to replace "connection". In the context of the present disclosure, for two elements, it may be considered that they are "connected" or "coupled" to each other by using at least one of one or more wires, cables, and printed electrical connections, and as some non-limiting and non-inclusive examples, by using electromagnetic energy such as electromagnetic energy with wavelengths in the wireless frequency domain, microwave region, and light (including both visible and invisible) region.

[0139] The reference signal may be referred to as RS (Reference Signal) for short, or may be referred to as a pilot signal according to the applied standard.

[0140] The phrase "according to" used in the present disclosure does not mean "only according to" unless otherwise expressly stated. In other words, the phrase "according to" means both "only according to" and "at least according to".

[0141] Any reference to an element using the terms "first", "second", etc. used in this disclosure does not necessarily limit the number and order of these elements. These terms are used in this disclosure as a simple method to distinguish between two or more elements. Therefore, a reference to a first and a second element does not mean that only two elements can be used here or that the first element must precede the second element in any form.

[0142] The "unit" in each of the above-mentioned device structures can be replaced by a "section", "circuit", "device" or the like.

[0143] When the terms "include," "including," and variations thereof are used in the present disclosure, these terms are intended to be inclusive, as is the term "comprising." Furthermore, the term "or" used in the present disclosure does not mean an exclusive or.

[0144] A radio frame may be composed of one or more frames in the time domain. One or more frames in the time domain may also be referred to as subframes. A subframe may also be composed of one or more time slots in the time domain. A subframe may be a fixed time length (e.g., 1 ms) that is independent of a parameter set (numerology).

[0145] A parameter set may also be a communication parameter applied to at least one of the transmission and reception of a certain signal or channel. The parameter set may, for example, represent at least one of a subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, wireless frame structure, specific filtering processing performed by a transceiver in the frequency domain, specific windowing processing performed by a transceiver in the time domain, and the like.

[0146] A time slot may be composed of one or more symbols (OFDM (Orthogonal Frequency Division Multiplexing) symbols, SC-FDMA (Single Carrier Frequency Division Multiple Access) symbols, etc.) in the time domain. A time slot may be a time unit based on a parameter set.

[0147] A time slot may also include multiple mini-slots. Each mini-slot may be composed of one or more symbols in the time domain. In addition, a mini-slot may also be referred to as a sub-slot. A mini-slot may also be composed of fewer symbols than a time slot. A PDSCH (or PUSCH) transmitted in a time unit larger than a mini-slot may also be referred to as a PDSCH (or PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using a mini-slot may also be referred to as a PDSCH (or PUSCH) mapping type B.

[0148] Radio frames, subframes, time slots, mini-time slots, and symbols all represent time units for transmitting signals. Radio frames, subframes, time slots, mini-time slots, and symbols may also be referred to by other corresponding names.

[0149] For example, 1 subframe may also be referred to as a transmission time interval (TTI), multiple consecutive subframes may also be referred to as a TTI, and 1 time slot or 1 mini time slot may also be referred to as a TTI. That is, at least one of the subframe and the TTI may be a subframe (1ms) in the existing LTE, or a period shorter than 1ms (for example, 1-13 symbols), or a period longer than 1ms. In addition, the unit representing the TTI may not be a subframe, but may be referred to as a time slot, a mini time slot, or the like.

[0150] Here, TTI refers to, for example, the minimum time unit for scheduling in wireless communication. For example, in the LTE system, the base station schedules each terminal 20 to allocate wireless resources (frequency domain width, transmission power, etc. that can be used in each terminal 20) in units of TTI. In addition, the definition of TTI is not limited to this.

[0151] TTI can be a transmission time unit of data packets (transport blocks), code blocks, code words, etc. after channel coding, or a processing unit for scheduling, link adaptation, etc. In addition, when a TTI is assigned, the time interval (for example, the number of symbols) to which a transport block, code block, code word, etc. is actually mapped can also be shorter than the TTI.

[0152] In addition, when 1 time slot or 1 mini time slot is called TTI, more than one TTI (i.e., more than one time slot or more than one mini time slot) can also constitute the minimum time unit of scheduling. In addition, the number of time slots (mini time slots) constituting the minimum time unit of scheduling can also be controlled.

[0153] A TTI having a time length of 1 ms may be referred to as a normal TTI (TTI in LTE Rel.8-12), a normal TTI, a long TTI, a normal subframe, a normal subframe, a long subframe, a time slot, etc. A TTI shorter than a normal TTI may be referred to as a shortened TTI, a short TTI, a partial TTI (partial or fractional TTI), a shortened subframe, a short subframe, a mini time slot, a sub time slot, a time slot, etc.

[0154] In addition, long TTI (e.g., normal TTI, subframe, etc.) can be replaced by TTI with a time length exceeding 1ms, and short TTI (e.g., shortened TTI, etc.) can also be replaced by TTI with a TTI length smaller than that of long TTI and greater than 1ms.

[0155] A resource block (RB) is a resource allocation unit in the time domain and the frequency domain. In the frequency domain, it may also include one or more consecutive subcarriers. The number of subcarriers included in an RB may be the same regardless of the parameter set, for example, it may be 12. The number of subcarriers included in an RB may be determined based on the parameter set.

[0156] In addition, the time domain of an RB may include one or more symbols, and may be of the length of 1 slot, 1 mini slot, 1 subframe, or 1 TTI. 1 TTI, 1 subframe, etc. may also be composed of one or more resource blocks.

[0157] In addition, one or more RBs may also be referred to as a physical resource block (PRB: Physical RB), a sub-carrier group (SCG: Sub-Carrier Group), a resource element group (REG: Resource Element Group), a PRB pair, an RB pair, etc.

[0158] In addition, a resource block may be composed of one or more resource elements (REs). For example, 1 RE may be a radio resource region of 1 subcarrier and 1 symbol.

[0159] A bandwidth part (BWP) (also called partial bandwidth, etc.) may also represent a subset of continuous common RBs (common resource blocks) for a parameter set in a certain carrier. Here, common RBs may also be identified by the index of the RB based on the common reference point of the carrier. PRBs may also be defined by a BWP and numbered within the BWP.

[0160] The BWP may include a BWP for UL (UL BWP) and a BWP for DL ​​(DL BWP). For a UE, one or more BWPs may be configured within one carrier.

[0161] At least one of the configured BWPs may be activated, and the UE may not assume that it transmits or receives predetermined signals / channels other than the activated BWP. In addition, "cell", "carrier", etc. in the present disclosure may also be replaced by "BWP".

[0162] The above structures of radio frames, subframes, time slots, mini-time slots, and symbols are only examples. For example, the number of subframes included in a radio frame, the number of time slots in each subframe or radio frame, the number of mini-time slots included in a time slot, the number of symbols and RBs included in a time slot or mini-time slot, the number of subcarriers included in an RB, the number of symbols in a TTI, the symbol length, the cyclic prefix (CP: Cyclic Prefix) length, and the like can be variously changed.

[0163] In the present disclosure, when an article is added by translation, such as a, an, and the in English, for example, the present disclosure also includes the case where the noun following the article is in plural form.

[0164] In the present disclosure, the phrase "A and B are different" may also mean "A and B are different from each other". In addition, the phrase may also mean "A and B are different from C, respectively". The phrases such as "separate" and "combine" may also be interpreted as "different".

[0165] Each form / implementation described in the present disclosure may be used alone or in combination, and may be switched according to execution. In addition, notification of scheduled information is not limited to being performed explicitly (e.g., notification of "yes X"), but may also be performed implicitly (e.g., not notifying the scheduled information).

[0166] In addition, the early notification in the present disclosure is an example of a notification indicating whether to monitor the paging occasion.

[0167] The present disclosure is described in detail above, but it should be clear to those skilled in the art that the present disclosure is not limited to the embodiments described in the present disclosure. The present disclosure can be implemented as a modification and variation without departing from the subject matter and scope of the present disclosure as determined by the claims. Therefore, the purpose of the description of the present disclosure is to illustrate and not to have any limiting meaning on the present disclosure.

[0168] Description of labels:

[0169] 10 Base Station

[0170] 110 Sending Department

[0171] 120 Receiving Department

[0172] 130 Setting Department

[0173] 140 Control Department

[0174] 20 Terminal

[0175] 210 Sending Department

[0176] 220 Receiving Department

[0177] 230 Setting Department

[0178] 240 Control Department

[0179] 1001 Processor

[0180] 1002 Storage Device

[0181] 1003 Auxiliary storage device

[0182] 1004 Communication device

[0183] 1005 Input Device

[0184] 1006 Output Device

Claims

1. A terminal, wherein: The terminal has: a receiving unit that receives from a base station information indicating a position of an early notification on a radio resource and indicating an offset in a time direction based on a paging opportunity, and information indicating a position of the early notification on a radio resource and indicating an offset in a frequency direction based on an SS / PBCH block (SSB), the early notification indicating whether to monitor the paging opportunity; as well as a control unit that determines a position of the early notification on a wireless resource based on the offset in the time direction and the offset in the frequency direction, The receiving unit receives the early notification from the base station based on the determined position, The control unit determines whether to monitor the paging opportunity based on the received early notification.

2. A communication system, comprising a terminal and a base station, wherein: The terminal has: a receiving unit receiving, from the base station, information indicating a position of an early notification on a radio resource and showing an offset in a time direction based on a paging opportunity, and information indicating a position of the early notification on a radio resource and showing an offset in a frequency direction based on an SS / PBCH block (SSB), the early notification indicating whether to monitor the paging opportunity; as well as a control unit that determines a position of the early notification on a wireless resource based on the offset in the time direction and the offset in the frequency direction, The receiving unit receives the early notification from the base station based on the determined position, The control unit determines whether to monitor the paging opportunity based on the received early notification, The base station has: a sending unit configured to send information indicating the offset in the time direction and information indicating the offset in the frequency direction to the terminal; as well as a control unit that determines a position of the early notification on a wireless resource based on the offset in the time direction and the offset in the frequency direction, The transmitting unit transmits the early notification to the terminal based on the determined position.

3. A communication method, wherein: The terminal performs the following steps: receiving from a base station information indicating a position of an early notification on a radio resource and indicating an offset in a time direction based on a paging opportunity, and information indicating a position of the early notification on a radio resource and indicating an offset in a frequency direction based on an SS / PBCH block (SSB), the early notification indicating whether to monitor the paging opportunity; Determining a position of the early notification on a radio resource according to the offset in the time direction and the offset in the frequency direction; receiving the early notification from the base station based on the determined location; as well as According to the received early notification, it is determined whether to monitor the paging occasion.

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