Terminal and communication method

Abstract

To provide a technique for performing an appropriate operation after a terminal requests on-demand SIB1.SOLUTION: A terminal includes: a transmission unit that transmits a wake-up signal as a request of SIB1 (System Information Block 1) to a base station; and a reception unit that, after receiving a response to the wake-up signal, starts monitoring of a control channel for the SIB1 after a period based on a processing delay of the response has lapsed.SELECTED DRAWING: Figure 2

Description

[Technical Field]

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

[0002] For NR (New Radio) (also known as "5G"), the successor system to LTE (Long Term Evolution), technologies that satisfy requirements such as a large-capacity system, high-speed data transmission speed, low latency, simultaneous connection of a large number of terminals, low cost, and low power consumption are being considered (for example, Non-Patent Document 1).

[0003] In addition, in 3GPP (registered trademark), network energy savings are becoming increasingly important in order to achieve environmental sustainability, carbon neutrality, SDGs (Sustainable Development Goals), reduced operating costs, etc., and methods for power savings are being considered. [Prior art documents] [Non-patent literature]

[0004] [Non-Patent Document 1] 3GPP TS 38.300 V18.5.0(2025-03) Summary of the Invention [Problem to be solved by the invention]

[0005] To achieve carbon neutrality and the SDGs, it is becoming increasingly important to reduce the power consumption of base stations, and the introduction of intermittent transmission and reception at base stations is being considered. It is expected that on-demand SIB1 will be used in cells that support the energy saving state (ES).

[0006] However, the timing at which the terminal starts monitoring the SIB1 PDCCH after transmitting the UL WUS (PRACH) used to request on-demand SIB1 and receiving the RAR is not specified. Furthermore, the process related to the balance with other processes is not specified. Therefore, the terminal may not be able to perform appropriate operations after requesting on-demand SIB1.

[0007] The present invention has been made in view of the above points, and has an object to provide a technique for a terminal to perform an appropriate operation after requesting an on-demand SIB1. [Means for solving the problem]

[0008] According to this embodiment, a transmitter that transmits a wake-up signal to a base station as a request for SIB1 (System Information Block 1); a receiving unit that, after receiving a response to the wake-up signal, starts monitoring a control channel for the SIB1 after a period based on a processing delay of the response has elapsed. [Effects of the Invention]

[0009] According to this embodiment, a technique is provided for a terminal to take appropriate action after requesting an on-demand SIB1. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a diagram illustrating an example of a wireless communication system according to an embodiment of the present invention. [Figure 2] FIG. 3 is a diagram for explaining an example of operation in the first embodiment. [Figure 3] FIG. 4 is a diagram for explaining a specific example of an operation in the first embodiment. [Figure 4] FIG. 2 is a diagram illustrating an example of a functional configuration of a base station according to the present embodiment. [Figure 5]FIG. 2 is a diagram illustrating an example of a functional configuration of a terminal according to the present embodiment. [Figure 6] FIG. 2 is a diagram illustrating an example of a hardware configuration of a base station or a terminal according to the present embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, the present embodiment (including the first, second, and third embodiments described later) will be described with reference to the drawings. Note that the embodiment described below is an example, and the embodiments to which the present invention is applied are not limited to the following embodiments.

[0012] In operation of the wireless communication system of the present embodiment, an existing technology may be used as appropriate. The existing technology is, for example, the existing LTE or the existing NR, but is not limited to the existing LTE or NR.

[0013] Furthermore, in the present embodiment described below, terms used in existing technologies, 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), are used. This is for convenience of description, and similar signals, functions, etc. may be referred to by other names. Furthermore, the above-mentioned 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 designated as "NR-".

[0014] Furthermore, in this embodiment, the duplex method may be a time division duplex (TDD) method, a frequency division duplex (FDD) method, or other methods (for example, flexible duplex, etc.).

[0015] Furthermore, in this embodiment, "configuring" radio parameters etc. may mean that predetermined values ​​are pre-configured, or that radio parameters notified from a base station or a terminal are set.

[0016] (System Configuration) Fig. 1 is a diagram for explaining a wireless communication system in this embodiment. As shown in Fig. 1, the wireless communication system in this embodiment includes a base station 10 and a terminal 20. Although Fig. 1 shows one base station 10 and one terminal 20, this is an example, and there may be a plurality of each.

[0017] The base station 10 is a communication device that provides one or more cells and performs wireless communication with the terminal 20. The physical resources of a wireless signal are defined in the time domain and the frequency domain, and the time domain may be defined by the number of Orthogonal Frequency Division Multiplexing (OFDM) symbols, and the frequency domain may be defined by the number of subcarriers or the number of resource blocks. Furthermore, a TTI (Transmission Time Interval) in the time domain may be a slot, or a TTI may be a subframe.

[0018] The base station 10 transmits a synchronization signal and system information to the terminal 20. The synchronization signal is, for example, NR-PSS and NR-SSS. The system information is transmitted, for example, via the NR-PBCH and is also referred to as notification information or broadcast information. The synchronization signal and system information may be referred to as an SSB (SS / PBCH block). As shown in FIG. 1 , the base station 10 transmits control signals or data to the terminal 20 via DL (Downlink) and receives control signals or data from the terminal 20 via UL (Uplink). Both the base station 10 and the terminal 20 are capable of transmitting and receiving signals by performing beamforming. Furthermore, both the base station 10 and the 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 a secondary cell (SCell) and a primary cell (PCell) using CA (Carrier Aggregation). Furthermore, the terminal 20 may perform communication via a primary cell of the base station 10 and a primary secondary cell group cell (PSCell: Primary SCG Cell) of another base station 10 using DC (Dual Connectivity).

[0019] The terminal 20 is a communication device equipped with a wireless communication function, such as a smartphone, a mobile phone, a tablet, a wearable terminal, or an M2M (Machine-to-Machine) communication module. As shown in FIG. 1, the 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. The terminal 20 also receives various reference signals transmitted from the base station 10 and measures the propagation path quality based on the reception results of the reference signals. The terminal 20 may be referred to as a UE 20, and the base station 10 may be referred to as a gNB 10.

[0020] (About the assignment) As mentioned above, in order to achieve carbon neutrality and the SDGs, it is becoming increasingly important to reduce the power consumption of base stations, and the introduction of intermittent transmission and reception at base stations is being considered. It is expected that on-demand SIB1 will be used in cells that support the energy saving state (ES).

[0021] Note that on-demand SIB1 is one of the Network Energy Saving (NES) functions being considered in 5G NR Release 18 / 19, and is an operation mode in which SIB1 (System Information Block Type 1) is not broadcast all the time, but is transmitted only when requested by the terminal 20. This enables a significant reduction in the transmission power and radio resources of the base station 10.

[0022] In 3GPP (registered trademark), it is agreed that the terminal 20 receives the OD-SIB1 PDCCH after successfully receiving the RAR for UL-WUS transmission, as follows: "After transmitting a UL-WUS, the UE is not required to monitor Type0-PDCCH occasion (for OD-SIB1) before the UE successfully received its RAR in response to the UL WUS."

[0023] An uplink wake-up signal (UL-WUS) is a signal transmitted from terminal 20 to base station 10 in order to wake up base station 10 in a sleep state, and PRACH, for example, can be used as the UL-WUS.

[0024] However, the timing at which terminal 20 starts monitoring the SIB1 PDCCH after transmitting a UL WUS (PRACH) to request on-demand SIB1 and receiving an RAR is not specified, nor is the balance with other processing specified.

[0025] (Outline of the embodiment) In order to solve the above problem, in this embodiment, the terminal 20 starts monitoring the PDCCH for OD-SIB1 after a predetermined period has elapsed, taking into consideration the RAR processing delay. Furthermore, the terminal 20 performs overlap handling between the reception / monitoring operation of "OD-SIB1 PDCCH, PDSCH, RAR PDCCH for UL WUS, and RAR PDSCH" and the transmission / reception operation of other signals / other channels. Note that the PDCCH is an example of a control channel, and the PDSCH is an example of a data channel. The technology according to this embodiment will be described in detail below.

[0026] In the following explanation, "," and "" are used as appropriate to clarify sentence groups and dependencies. Also, " / " means "or," or "and." For example, "A / B" means "A or B, or A and B." Also, "[" and "]" are used to clarify sentence groups and dependencies, and to indicate that the sentences enclosed in "[" and "]" do not have to be limited.

[0027] (Regarding existing SSB / always-on SSB) In this embodiment, the existing SSB / always-on SSB may be any of 1) to 5) shown below, or any combination thereof.

[0028] 1) SSB configured by RRC up to Rel-15 / Rel-18.

[0029] 2) SSB set in serving cell config common set in SIB1 / RRCReconfiguration.

[0030] 3) Cell-defining SSB or non-cell-defining SSB. For example, SSB configured as NCD-SSB in RRC falls into this category.

[0031] 4) SSB placed on the sync raster or SSB placed other than on the sync raster.

[0032] 5) Serving cell config under Scell ​​configuration.

[0033] (About On-demand SSB) In this embodiment, the on-demand SSB may be any of the following 1) to 13), or any combination thereof. For example, it may be an adaptation of an existing / new SSB, or it may be interpreted as an adaptation of an on-demand SSB.

[0034] 1) An SSB [notified in settings] that is different from the existing SSBs listed above.

[0035] 2) Triggering the SSB transmission itself (SSB transmission is turned on / off).

[0036] 3) Triggering "SSB transmission at a certain cycle X, SSB transmission at or above a certain cycle X or below a certain cycle X, or longer or shorter than a certain cycle X, SSB transmission with a cycle shorter than the SSB currently being transmitted, currently set, or most recently received by the UE, SSB transmission with a cycle longer than the SSB currently being transmitted, currently set, or most recently received by the UE, or maintaining SSB transmission at the current cycle." Changing the SSB cycle.

[0037] 4) Triggering the transmission / not transmitting of a certain SS burst (triggering SSB transmission at a certain opportunity). It is also possible to trigger the transmission / not transmitting of multiple SSB bursts, i.e., triggering SSB burst transmission at a certain opportunity.

[0038] 5) Triggering the transmission / not transmitting of an SS burst within a certain period (triggering SSB transmission at a certain opportunity). Triggering the transmission / not transmitting of multiple SSB bursts may also be possible.

[0039] 6) Triggering a certain number of SSB transmissions / fewer SSB transmissions / more SSB transmissions / maintaining the current SSB transmissions, i.e., turning on / off transmission of SSB burst opportunities within a certain period, i.e., changing the SSB position / index transmission number.

[0040] 7) Triggering the number of SSB transmissions in an SS burst / fewer SSB transmissions / more SSB transmissions / maintaining the current SSB transmissions, i.e., changing the SSB position / index transmission number.

[0041] 8) Triggering a certain SSB.

[0042] 9) Triggering an SSB with a different SSB index / position, i.e., changing the SSB position / index position.

[0043] 10) Triggering on a certain SSB within a certain SS burst.

[0044] 11) Triggering different SSBs at a certain SSB index / position within a certain SS burst.

[0045] 12) Triggering a transmit beam / SSB transmission that has a predetermined QCL relationship with some other RS.

[0046] 13) Triggering SSB transmissions with different SSB indices / positions and transmit beams / predetermined QCL relationships with some other RS ​​for each SSB.

[0047] Note that the on-demand SSB may be an on-demand SIB1, or may be a CORESET associated with a Type0-PDCCH CSS set [transmitted on-demand / triggered by the UE] [belonging to]. In this embodiment, "deactivation" may be replaced with any term indicating deactivation, or any term indicating update / adaptation / change.

[0048] (Notification of specified conditions being met or specified settings being set) In the description of this embodiment, there are cases where an operation when a predetermined condition is satisfied or when a predetermined setting is notified will be explained. Here, what is meant by "satisfying a predetermined condition or notifying a predetermined setting" will be explained. "Satisfying a predetermined condition or notifying a predetermined setting" may be any of 1)-10) shown below, or any combination thereof.

[0049] 1) When "Existing SSB / Always-on SSB" is set in the terminal 20 / When "Existing SSB / Always-on SSB" is transmitted from the base station 10 to the terminal 20.

[0050] 2) When the terminal 20 is configured / notified [semi-stati / by RRC, dynamically / by MAC CE / DCI] of resources where "On-demand SSB is transmitted / On-demand SSB can be transmitted."

[0051] 3) When terminal 20 receives existing SSB / Always-on SSB / On-demand SSB.

[0052] 4) If the terminal 20 is / is not configured as "TDD / FDD / SUL / Unlicensed / SL / mTRP / DC / FR2 / FR1".

[0053] 5) When the "transmission / setting / cell / frequency" of the on-demand SSB is a cell within the MCG / a cell within the SCG / a Pcell / a scell / a pscell / a PUCCH scell / a known cell / an unknown cell / satisfies the side condition / does not satisfy the side condition.

[0054] 6) When the transmission characteristics of on-demand SSB are predetermined characteristics, such as periodic / semi-persistence / aperiodic transmission, X number of SSB bursts transmitted, or when the period is less than or greater than X.

[0055] 7) When there is a specific relationship between On-demand SSB and "existing SSB / always-on SSB", for example This applies when the FR / same frequency / same BWP is used.

[0056] 8) When there is a predetermined relationship between the cell where "On-demand SSB is transmitted / On-demand SSB is configured / On-demand SSB is notified" and the (s)pcell. For example, this applies when they are the same cell / different cells. Also, this applies when they have different SCS / the same SCS / the same TA group / the same TA group / the same cell group / the different cell group / the same frequency range / the different frequency range / satisfy a predetermined relationship (e.g., conditions for SSB-leSS SCell) / other predetermined time-frequency related resources are the same / other predetermined time-frequency related resources are different.

[0057] 9) When the SCell is in a predetermined state where an on-demand SSB is transmitted, an on-demand SSB is configured, or an on-demand SSB is notified. Examples of predetermined states include SCell activated, SCell deactivated, SCell dormancy, SCell activation procedure in progress, SCell deactivation procedure in progress, etc. BWP activated or BWP deactivated.

[0058] 10) On-demand SSB is associated with a specific purpose / On-demand SSB is used for a specific purpose, such as scell activation / L1 measurement / L3 measurement / scell beam failure recovery / power control / for scell time synchronization / frequency synchronization / dormancy recovery for channel estimation (QCL) / know cell transition.

[0059] Note that for all of 1) to 10) above, the condition may be limited to the case where X [greater than / less than / equal to] predetermined conditions / predetermined settings are satisfied (X may be an RRC-configured value, a pre-defined value that differs depending on the SCS, or a value reported in the UE capability). For example, this may mean the case where X1 on-demand SSB settings are made under the same condition / setting, or the case where X2 different predetermined conditions described above are satisfied, or a combination thereof.

[0060] (Regarding the specified period) In the description of this embodiment, the term "predetermined period" may be used. Therefore, the term "predetermined period" will be explained. The "predetermined period" may be any of the following, or may be determined based on parameters set by the base station 10.

[0061] Reference points for a given period: 1) In the case of a UE trigger: The point after (e.g., immediately after) transmission of a UL signal that performs a "SIB1 trigger" / [then] the point after (e.g., immediately after) reception of a specified notification related to the "SIB1 trigger" notified from base station 10.

[0062] 2) In the case of a BS trigger: the time point after (for example, immediately after) receiving a "DL signal / notification / setting" that performs an "SSB trigger" transmitted from the base station 10.

[0063] 3) Common to UE trigger and BS trigger: "The point in time after the terminal 20 transmits a predetermined UL response (for example, immediately after transmission) in response to a notification from the base station 10 / The point in time of the reference time (SFN, slot number, symbol number) set by the base station 10."

[0064] Time width of a specified period: Set by the base station 10 / specified in the specifications / determined according to the capability of the terminal 20 [ / varies depending on the SCS], during a time window [from a reference point], or until a point after a certain delay (application delay, processing delay) [from a reference point].

[0065] The time width may be specified / set in any one of Submsec, Msec, sec, symbol, slot, subframe, and SFN.

[0066] (About On-demand SIB1 (OD-SIB1) [request / trigger]) In this embodiment, the on-demand SIB1 (OD-SIB1) [request / trigger] may be any of the following 1)-8), or any combination thereof. Furthermore, the following SIB1 may be interpreted as a predetermined SSB associated with the on-demand SIB1.

[0067] 1) [including / excluding predetermined parameters,] [after terminal 20 confirms that SIB1 has not been transmitted] terminal 20 triggers SIB1 transmission itself.

[0068] 2) The terminal 20 triggers the transmission of SIB1 [with / without predetermined parameters].

[0069] 3) The terminal 20 triggers SIB1 transmission at a certain period X / "SIB1 transmission at a period greater than, less than, longer than, or shorter than a certain period X" / "SIB1 transmission with a shorter period than the SIB1 currently being transmitted, configured, or most recently received by the UE" / "SIB1 transmission with a longer period than the SIB1 currently being transmitted, configured, or most recently received by the terminal 20" / "maintaining SIB1 transmission at the current period."

[0070] 4) The terminal 20 triggers SIB1 transmission of a certain time-domain behavior (aperiodic, semi-peristant, periodic).

[0071] 5) The terminal 20 triggers transmission on a certain SIB1 occasion [within a period] / triggers no transmission on a certain SIB1 occasion [within a period].

[0072] 6) Trigger "[specific] number of SIB1 transmissions / less number of SIB1 transmissions / more number of SIB1 transmissions / maintain current SIB1 transmissions."

[0073] 7) Triggering a SIB1 [associated with a different SSB index / position].

[0074] 8) Triggering SIB1 transmission that has a predetermined QCL relationship with the "applicable transmit beam / some other RS".

[0075] The following describes a first and a second embodiment as embodiments for solving the above-mentioned problems. The cases where "a predetermined condition is satisfied or a predetermined setting is notified" are as described above.

[0076] (First embodiment) First, the first embodiment will be described.

[0077] When "a specified condition is met or a specified setting is notified," the terminal 20 transmits an UL-WUS to the base station 10, receives a corresponding RAR from the base station, and then starts monitoring the PDCCH for OD-SIB1 after a period that takes into account the processing delay of the specified RAR has elapsed.

[0078] An example of operation in the first embodiment will be described with reference to Fig. 2. In S101 (step 101), the terminal 20 transmits a UL-WUS to the base station 10. In this embodiment, it is assumed that the UL-WUS is a PRACH.

[0079] In S102, the base station 10 transmits an RAR as a response to the terminal 20, and the terminal 20 receives the RAR.

[0080] In S103, when the terminal 20 determines that it is time to start monitoring the PDCCH for OD-SIB1, the terminal 20 starts monitoring the PDCCH for OD-SIB1.

[0081] <Regarding the period considering the processing delay of the specified RAR> The value of the period taking into consideration the processing delay of the predetermined RAR described above is, for example, "a value set from the base station 10 to the terminal 20 / a value defined in the specifications / a value determined according to the capability of the terminal 20." Furthermore, the value of the period taking into consideration the processing delay of the predetermined RAR may differ depending on the SCS used by the terminal 20 (and the base station 10) for communication. Furthermore, the value of the period taking into consideration the processing delay of the predetermined RAR may be defined / set using any of Submsec, Msec, sec, symbol, slot, subframe, and SFN.

[0082] Examples 1 to 5 of the period values ​​taking into consideration the processing delay of a predetermined RAR are shown below.

[0083] Example 1: 3N slot subframe,μ [+1]slot In Example 1 above, "3N slot subframe,μ " represents the time length of the number of slots for 3 subframes when the SCS is μ. "[+1] slot" is 3N slot subframe,μ This means that you may add one slot to the

[0084] Example 2: 0, 1 slot / symbol / ms, 3 ms Example 2 above means that the value of the period considering the processing delay of a given RAR is 0, 1 slot / symbol / ms, or 3 ms.

[0085] Example 3: "including any interruption due to uplink or downlink RF retuning time" Example 3 above means that the period considering the processing delay of a given RAR may include the time for temporary interruption of communication due to RF retuning on the uplink (UL) or downlink (DL).

[0086] Example 4: 「N_T,1 + 0.5msec / 0.75ms where N_T,1 is the PDSCH processing time for UE capability1 (or UE capability2) (when additional DM-RS is configured)」 Example 4 means that the value of the period considering the processing delay of a predetermined RAR is a value obtained by adding 0.5 msec or 0.75 ms to N_T,1. N_T,1 is the processing time (decoding time) of PDSCH by the terminal 20 according to the capability of the terminal 20. Note that 「when additional DM-RS is configured」 means that N_T,1 when additional DM-RS is set for the terminal 20 may be used.

[0087] Example 5: It may be possible to consider K_cell,offset provided by cellSpecific_Koffset or K_UE,offset provided by a MAC CE command.

[0088] <Regarding the reception timing of RAR> Regarding the reception timing of RAR corresponding to the start timing of the period of the processing delay of a predetermined RAR, it may be the 「timing of the PDCCH occasion for scheduling the RAR PDSCH / PDCCH reception timing」 or the RAR PDSCH reception timing. Also, when the terminal 20 receives a plurality of RARs, the reception timing of the RAR may be determined by 「the first / the last / the one with the highest received power / any of the terminal imprints」.

[0089] The RAR used for determining the monitoring start timing of the PDCCH for OD-SIB1 may be limited to the RAR corresponding to the occasions associated with the SSB that the terminal 20 refers to for UL WUS transmission, or the RAR that has been successfully received, or the RAR targeted at all SSBs / the RAR corresponding to the occasions associated with any SSB.

[0090] Specific examples 1 and 2 will be explained below.

[0091] <Example 1> Terminal 20 monitors the PDCCH for OD-SIB1 from the Type0-PDCCH common search space immediately after the PDSCH slot in which the RAR is transmitted. Terminal 20 may start counting the OD-SIB1 reception window from the Type0-PDCCH common search space immediately after the PDSCH slot in which the RAR is transmitted.

[0092] <Example 2> The terminal 20 receives the RAR from the 3Nth PDSCH slot in which the RAR was transmitted. slot subframe,μ Terminal 20 monitors the PDCCH for OD-SIB1 from the Type0-PDCCH common search space immediately after the [+1] slot. slot subframe,μ The count of the OD-SIB1 reception window may start from the Type0-PDCCH common search space immediately after the [+1] slot.

[0093] Fig. 3 shows specific example 2. As shown in Fig. 3, terminal 20 starts monitoring n slots after the PDSCH slot in which RAR is transmitted. After that, terminal 20 monitors the PDCCH for OD-SIB1 in "Type 0 PDCCH monitoring occasions for OD-SIB1" within the window of on-demand SIB1.

[0094] <Effects of the first embodiment> According to the first embodiment, the terminal 20 can determine the timing to start monitoring the SIB1 PDCCH after the UL WUS (PRACH) transmission.

[0095] (Second embodiment) Next, a second embodiment will be described. In the second embodiment, when "a predetermined condition is satisfied or a predetermined setting is notified," terminal 20 performs a predetermined handling operation in a predetermined overlap between "reception processing of PDSCH that transfers OD-SIB1 or PDCCH with SI-RNTI that schedules it" and "processing of transmission and reception of other signals or channels / other internal processing of UE."

[0096] <Other signals or channels> The above-mentioned "other signals / channels" are, for example, as follows for each of DL and UL.

[0097] DL: DCI / dynamic / RRC / MAC CE / semi-static, PDSCH / PDCCH / CSI-RS( / TRS) / PRS UL: DCI / dynamic / RRC / MAC CE / semi-static, PUSCH / PUCCH / PRACH / SRS The "other signals / channels" may be "DCI format, a RAR UL grant, fallbackRAR UL grant, successRAR, or higher layer signaling" that instructs the transmission and reception of the "signals / channels" in question, or may be any combination of all or some of the elements in "DCI format, a RAR UL grant, fallbackRAR UL grant, successRAR, and higher layer signaling."

[0098] In addition, the DCI in the "other signals / channels" may be limited to any of the following, or the "PDSCH / PUSCH" in the "other signals / channels" may be limited to those scheduled with any of the DCI below.

[0099] ·DCI whose RNTI is SI-RNTI / P-RNTI / PEI-RNTI / RA-RNTI / MsgB-RNTI / SFI-RNTI / INT-RNTI / TPC-PUSCHRNTI / TPC-PUCCH-RNTI / TPC-SRS-RNTI / C-RNTI / TC-RNTI.

[0100] DCI in which the RNTI is any combination of multiple of "SI-RNTI, P-RNTI / PEI-RNTI, RA-RNTI, MsgB-RNTI, SFI-RNTI, INT-RNTI, TPC-PUSCHRNTI, TPC-PUCCH-RNTI, TPC-SRS-RNTI, and C-RNTI / TC-RNTI."

[0101] DCI for any RNTI.

[0102] Furthermore, the DCI format for "other signals / channels" may be limited to 0_0 / 0_1 / 1_0 / 1_1 / 2_0 / 2_1 / 2_2 / 2_3, .. 2_X, or may be limited to any combination of "0_0, 0_1, 1_0, 1_1, 2_0, 2_1, 2_2, 2_3, .. and 2_X", or may be any format.

[0103] <Internal processing of terminal 20> The internal processing of the terminal 20 may be processing that is performed within a predetermined period from the time of "transmission / reception of other signals / channels."

[0104] <Regarding prescribed handling operations> The predetermined handling operation is, for example, any one of the following operations or a combination of any two or more of them.

[0105] The terminal 20 is not expected to receive / is expected to be able to receive "OD-SIB1 PDCCH, PDSCH, RAR PDCCH or RAR PDSCH for UL WUS".

[0106] Terminal 20 is not expected to transmit or receive the above-mentioned "other signals / channels" / is expected to be able to "receive / measure" the above-mentioned "other signals / channels" / will drop transmissions of the above-mentioned "other signals / channels".

[0107] As an example of a handling operation, when all or part of "the PDSCH that transmits OD-SIB1 or the PDCCH with SI-RNTI that schedules it" overlaps with "other signals or channels" in the time domain, the terminal 20 may "not receive / not decode / drop" the "other signals or channels." Furthermore, when all or part of "the PDSCH that transmits OD-SIB1 or the PDCCH with SI-RNTI that schedules it" overlaps with "other signals or channels" in the time domain, the terminal 20 may "not receive / decode / drop" the "other signals or channels."

[0108] <SIB1 Targeted in the Second Embodiment> The SIB1s targeted by the operations described so far in the second embodiment may be limited to [on-demand] SIB1s triggered / requested by the terminal 20 (for which a UL WUS has been sent), and the terminal 20 may assume reception of other on-demand SIB1s. Furthermore, the SIB1s targeted by the operations described so far in the second embodiment may be limited to on-demand SIB1s other than [on-demand] SIB1s triggered / requested by the terminal 20 (for which a UL WUS has been sent), and the terminal 20 may assume reception of other on-demand SIB1s.

[0109] Furthermore, the SIB1s targeted by the operations described so far in the second embodiment may be limited to [on-demand] SIB1s associated with the SSBs referenced by the terminal 20, and the terminal 20 may assume reception of other on-demand SIB1s. Furthermore, the SIB1s targeted by the operations described so far in the second embodiment may be limited to on-demand SIB1s other than [on-demand] SIB1s associated with the SSBs referenced by the terminal 20, and the terminal 20 may assume reception of other on-demand SIB1s.

[0110] <Selection of processing method> The base station 10 may configure the terminal 20 by RRC which of the multiple types of processing methods described in the second embodiment the terminal 20 is to execute (RRC-configured).

[0111] <Example of description of the operation of terminal 20> An example of an operation example in the second embodiment described in specifications or the like is, "The UE is not expected to receive CSI-RS and SIB1 message in the overlapping PRBs in the OFDM symbols where on-demand SIB1 is transmitted." When performing an operation according to this description, if terminal 20 detects that the on-demand SIB1 and the "CSI-RS and SIB1 message" overlap in time or frequency resources, it does not receive the "CSI-RS and SIB1 message."

[0112] <Regarding overlap at a given level> Furthermore, when "predetermined conditions are met or predetermined settings are notified," terminal 20 may perform predetermined handling operations only when "reception processing of PDSCH that transfers OD-SIB1 or PDCCH with SI-RNTI that schedules it" and "transmission and reception of other signals or channels" overlap at a predetermined level.

[0113] Furthermore, when "predetermined conditions are met or predetermined settings are notified," the terminal 20 may perform predetermined handling operations only if "reception processing of PDSCH that transfers OD-SIB1 or PDCCH with SI-RNTI that schedules it" and "transmission and reception of other signals or channels" do not overlap at a predetermined level.

[0114] For example, the terminal 20 (UE) may perform the following operations (1) to (3).

[0115] (1)On a frequency range 1 cell, the UE shall be able to decode a PDSCH scheduled with C-RNTI, MCS-C-RNTI, or CSRNTI and, during a process of P-RNTI triggered SI acquisition, another PDSCH scheduled with SI-RNTI that partially or fully overlap in time in non-overlapping PRBs, unless the PDSCH scheduled with C-RNTI, MCS-C-RNTI, or CSRNTI requires Capability 2 processing time according to clause 5.3 in which case the UE may skip decoding of the scheduled PDSCH with C-RNTI, MCS-C-RNTI, or CS-RNTI. In a cell in 1), the UE must be able to decode both a PDSCH scheduled with C-RNTI, MCS-C-RNTI, or CS-RNTI, and another PDSCH scheduled with SI-RNTI that partially or completely overlaps in time but does not have overlapping PRBs during the SI acquisition process triggered by P-RNTI. However, if the PDSCH scheduled with C-RNTI, MCS-C-RNTI, or CS-RNTI requires the processing time of Capability 2, the UE may skip decoding the PDSCH scheduled with C-RNTI, MCS-C-RNTI, or CS-RNTI.

[0116] (2) On a frequency range 2 cell, the UE is not expected to decode a PDSCH scheduled with C-RNTI, MCS-C-RNTI, or CSRNTI if in the same cell, during a process of P-RNTI triggered SI acquisition, another PDSCH scheduled with SI-RNTI partially or fully overlaps in time. (3)In a given scheduled cell, for any PDSCH corresponding to SI-RNTI, the UE is not expected to decode a re-transmission of an earlier PDSCH with a starting symbol less than N symbols after the last symbol of that PDSCH, where the value of N depends on the PDSCH subcarrier spacing configuration μ, with N=13 for μ=0, N=13 for μ=1, N=20 for μ=2, N=24 for μ=3, N=96 for μ=5, and N=192 for μ=6. (For any PDSCH corresponding to SI-RNTI in a particular scheduled cell, the UE is not expected to decode a retransmission of a previous PDSCH if that retransmission begins less than N symbols after the last symbol of that PDSCH, where the value of N depends on the PDSCH subcarrier spacing setting μ: N=13 for μ=0 and μ=1, N=20 for μ=2, N=24 for μ=3, N=96 for μ=5, and N=192 for μ=6.) The above is an explanation of (1) to (3).

[0117] The above PDSCH scheduled with SI-RNTI may be limited to [on-demand] SIB1s triggered / requested by terminal 20 (transmitting UL WUS), and terminal 20 may assume reception of other on-demand SIB1s. Furthermore, the above PDSCH scheduled with SI-RNTI may be limited to on-demand SIB1s other than [on-demand] SIB1s triggered / requested by terminal 20 (transmitting UL WUS), and terminal 20 may assume reception of other on-demand SIB1s.

[0118] Furthermore, the above PDSCH scheduled with SI-RNTI may be limited to [on-demand] SIB1 associated with the SSB referenced by the terminal 20, and the terminal 20 may assume reception of other on-demand SIB1. Furthermore, the above PDSCH scheduled with SI-RNTI may be limited to on-demand SIB1 other than [on-demand] SIB1 associated with the SSB referenced by the terminal 20, and the terminal 20 may assume reception of other on-demand SIB1.

[0119] The processing method that terminal 20 is to execute from the plurality of types of processing methods described above may be configured by base station 10 to terminal 20 by RRC (RRC-configured).

[0120] <Effects of the second embodiment> According to the second embodiment, the terminal 20 can appropriately handle overlapping of reception / monitoring operations related to the OD-SIB1 and transmission / reception operations of other signals / channels.

[0121] (Common to the first and second embodiments) The matters common to the first and second embodiments will be described.

[0122] <Regarding the specified period> The predetermined period may be any of the following, or may be determined based on a predetermined parameter set by the base station 10.

[0123] A period of a specified time span from a specified reference point The predetermined reference point may be the time of transmission / reception of a predetermined DL / UL signal, or may be a reference time (SFN, slot number, symbol number) set by the base station 10. The unit of time may be any of per symbol, per slot, per radio frame, per system frame, per subms, per ms, and per s.

[0124] The specified time interval is determined by parameters set by the base station 10 / pre-defined in the specifications / determined according to the capability of the terminal 20 [varies depending on the SCS] [varies depending on the Timing Advanced value of the terminal 20], and is a time interval during a time window [from the reference point] or after a certain delay (application delay, processing delay) [from the reference point].

[0125] The terminal 20 may determine the predetermined period by taking the min (using the smaller value) of a certain value (e.g., the above-mentioned predetermined time width) and a certain predetermined value, or may determine the predetermined period by taking the max (using the larger value) of a certain value (e.g., the above-mentioned predetermined time width) and a certain predetermined value. The certain predetermined value may be 1 symbol / 1 slot / 1 msec, or may be "a parameter set by the base station 10 / a value predefined in the specifications / a value determined according to the capability of the terminal 20 [ / a value that differs depending on the SCS]."

[0126] <Predetermined cell of base station 10> The predetermined cell of the base station 10 may be any of an SpCell, a Pcell, a PSCell in dual connectivity, an active scell, and a cell that satisfies a predetermined condition.

[0127] <Status of terminal 20> The terminal 20 may be in any of the idle state, the inactive state, and the RRC connected state, and different operations may be performed depending on the terminal state.

[0128] <UE capability of terminal 20> The terminal 20 may perform a predetermined function / operation in a predetermined UE capability, or may report the predetermined function / operation to the base station 10. The predetermined UE capability may be set in any of the following granularities (units): Examples of granularity: "UE, FR1, FR2, FR2-1, FR2-2, SCS, band, band combination, feature combination, per FSPC", "UE, per cell, per each TDD and FDD".

[0129] <Prescribed settings / notifications> The predetermined setting / notification may be any of the following.

[0130] The setting / notification may be performed by any of RRC, MAC CE, and DCI. An identifier (index) may be associated with the parameter list set / notified by any of RRC, MAC CE, and DCI, and the identifier may be notified to the terminal 20 by a separate notification (MAC CE, DCI), so that the terminal 20 may determine the parameter list to be activated / applied / used (or deactivated / not applied / not used).

[0131] The identifiers may be associated implicitly by the order of a list configured in the RRC, or may be associated by explicitly configuring a certain number.

[0132] The terminal 20 may respond to any of the signals with a response signal (NACK, ACK, feedback, retransmission request).

[0133] The terminal 20 may set, change, or release multiple parameter lists using "AddModlist" / "releaselist" via RRC.

[0134] The configuration / notification may be performed by an SI / SIB RRC message, or may be performed by a UE-specific RRC message (e.g., RRCReconfiguration) for terminal 20 during RRC connection. Examples of signals used for the configuration / notification are as follows: SS / PBCH / SIB1 / SIBX [of one or more cells / bands / carriers] / dedicated RRC configuration / RRC release / RRC setup [of one or more cells / bands / carriers].

[0135] Configuration / notification may be performed in a predetermined DCI format scrambling with X-RNTI, which may be, but is not limited to, NES-RNTI, SI-RNTI, or a new DCI format and / or RNTI.

[0136] Note that when symbols such as X, A, B, and C are used without any other specification, they may represent any integer [depending on the SCS], and the terminal 20 may report it by the UE capability, or it may be set by the RRC, or it may be pre-defined.

[0137] For all parameters, the terminal 20 may use default values / operate when they are not set / notified by the base station 10.

[0138] <Default behavior> The default behavior may be any of the following:

[0139] No action Repeat the previous action Perform RRC Release / RRC Re-establishment Send a predetermined notification to the base station 10 Sends a predetermined notification to the higher layer of the terminal 20 <default value> The default value may be any of the following.

[0140] · Always 0 / 1 · The value used immediately before · The value set / notified immediately before · The value (pre-)defined in the specification · The parameter value of another setting / notification · A predetermined timer value <Regarding UE operations> For all UE operations #A, the terminal 20 may perform a default operation #B when a certain operation #A cannot be performed.

[0141] <Regarding a predetermined criteria> That a predetermined reference signal satisfies a predetermined criteria may mean that any combination of the following values satisfies a predetermined condition.

[0142] · L3 / L1 RSRP / RSRQ / SINR · With / without L3 / L1 filter (Summary of the effects of the technology according to the embodiment) According to the technology of this embodiment, since the base station 10 and the terminal 20 have the same understanding of the procedures related to on-demand SIB1 after the on-demand SIB1 trigger / SIB1 transmission (e.g., SIB1 information acquisition, cell camp on determination (cell (re-)selection), initial access, acquisition of other SIs, paging monitoring, L3 measurements for idle mode mobility), they can appropriately execute those procedures to perform communication.

[0143] [[ID=D37]] (Device configuration) Next, a functional configuration example of the base station 10 and the terminal 20 that execute the processes and operations described so far will be described. The base station 10 and the terminal 20 include functions for implementing all the above-described embodiments. However, the base station 10 and the terminal 20 may each be provided with only some of the functions in all the embodiments.

[0144] <Base station 10> Fig. 4 is a diagram showing an example of the functional configuration of the base station 10 in this embodiment. As shown in Fig. 4, 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 Fig. 4 is merely an example. The names of the functional divisions and functional units may be any as long as they can perform the operations in this embodiment. The transmitting unit 110 and the receiving unit 120 may be collectively referred to as a communication unit.

[0145] The transmitter 110 has a function of generating a signal to be transmitted to the terminal 20 and transmitting the signal wirelessly. The receiver 120 has a function of receiving various signals transmitted from the terminal 20 and acquiring, for example, information of a higher layer from the received signal. The transmitter 110 also has a function of transmitting PSS, SSS, PBCH, DL / UL control signals, LP-WUS, etc. to the terminal 20. The receiver 120 also receives inter-network node messages from other network nodes.

[0146] The setting unit 130 stores preset setting information and various setting information to be transmitted to the terminal 20. The content of the setting information is, for example, information on the operations described in each embodiment.

[0147] The control unit 140 controls settings, instructions, and notifications related to the operations described in the embodiments. The functional unit related to signal transmission in the control unit 140 may be included in the transmitting unit 110, and the functional unit related to signal reception in the control unit 140 may be included in the receiving unit 120.

[0148] <Terminal 20> Fig. 5 is a diagram showing an example of the functional configuration of the terminal 20 in this embodiment. As shown in Fig. 5, the 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 Fig. 5 is merely an example. The names of the functional divisions and functional units may be any as long as they can execute the operations in this embodiment. The transmitting unit 210 and the receiving unit 220 may be collectively referred to as a communication unit.

[0149] The transmitter 210 creates a transmission signal from transmission data and transmits the transmission signal wirelessly. The transmitter 210 also transmits a UL-WUS to the base station 10. The receiver 220 receives various signals wirelessly and acquires higher layer signals from the received physical layer signals. The receiver 220 also has a function of receiving PSS, SSS, PBCH, DL / UL / SL control signals, LP-WUS, and the like transmitted from the base station 10. The setting unit 230 stores various setting information received by the receiver 220 from the base station 10. The setting unit 230 also stores setting information that is set in advance. The content of the setting information is, for example, information on the operations described in the embodiments.

[0150] As described in each embodiment, the control unit 240 controls settings, instructions, and notifications related to the operations described in the embodiments. A functional unit related to signal transmission in the control unit 240 may be included in the transmitting unit 210, and a functional unit related to signal reception in the control unit 240 may be included in the receiving unit 220.

[0151] (Hardware configuration) The block diagrams (FIGS. 4 and 5) used to explain the above embodiments show functional blocks. These functional blocks (components) are realized by hardware, software, or a combination of these. Furthermore, the method for realizing each functional block is not particularly limited. That is, each functional block may be realized by using a single device that is physically or logically coupled, or may be realized by using two or more physically or logically separated devices that are connected directly or indirectly (for example, by wire, wirelessly, etc.) and these multiple devices. The functional block may be realized by combining the single device or the multiple devices with software.

[0152] For example, a base station, a terminal, a network node, etc. according to an embodiment of the present disclosure may function as a computer that performs processing of the wireless communication method of the present disclosure. Fig. 6 is a diagram illustrating an example of the hardware configuration of a base station and a terminal according to an embodiment of the present disclosure. The above-described base station 10 and terminal 20 may be physically configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, etc.

[0153] In the present disclosure, the term "apparatus" may be interchangeable with any two terms selected from a set of terms such as circuit, device, unit, module, chip, means, etc. The hardware configurations of the base station 10 and the terminal 20 may be configured to include one or more of the devices shown in the drawings, or may be configured to exclude some of the devices.

[0154] Each function in the base station 10 and the terminal 20 is realized by loading predetermined software (programs) onto hardware such as the processor 1001, memory 1002, etc., so that the processor 1001 performs calculations, controls communication by the communication device 1004, and controls the reading, writing, or both reading and writing of data in the memory 1002 and storage 1003.

[0155] The processor 1001, for example, runs an operating system to control the entire computer. The processor 1001 may be configured as a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic unit, a register, etc. For example, a baseband signal processing unit, a call processing unit, etc. may be realized by the processor 1001. Although only one processor 1001 is shown in the figure, there may be multiple processors.

[0156] The processor 1001 also reads programs (program codes), software modules, data, etc. from the storage 1003, the communication device 1004, or both the storage 1003 and the communication device 1004 into the memory 1002, and executes various processes in accordance with the programs. The programs used are those that cause a computer to execute at least some of the operations described in the above-described embodiments. For example, the control unit 401 of the terminal 20 may be implemented by a control program stored in the memory 1002 and running on the processor 1001, and similar implementations may be made for other functional blocks. While the above-described various processes have been described as being executed by a single processor 1001, they may also be executed simultaneously or sequentially by two or more processors 1001. The processor 1001 may be implemented by one or more chips. The programs may be transmitted from a network via a telecommunications line, or may be provided to the computer via the communication device 1004, for example.

[0157] The present disclosure also provides a computer program product including a computer program, which may implement the steps of the methods described in the above embodiments when the computer program is executed by a computer (e.g., the processor 1001).

[0158] The memory 1002 is a computer-readable recording medium and may be configured, for example, as a read-only memory (ROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM), a random access memory (RAM), or a combination of at least two of these. The memory 1002 may also be called a register, a cache, a main memory (primary storage device), or the like. The memory 1002 can store executable programs (program codes), software modules, and the like for implementing a wireless communication method according to an embodiment of the present disclosure.

[0159] Storage 1003 is a computer-readable recording medium, and may be, for example, an optical disk such as a CD-ROM (Compact Disc ROM), a hard disk drive, a flexible disk, a magneto-optical disk (e.g., a compact disk, a digital versatile disk, a Blu-ray disc), a smart card, a flash memory (e.g., a card, a stick, a key drive), a floppy disk, a magnetic strip, or a combination of at least two of these. Storage 1003 may also be referred to as an auxiliary storage device. The above-mentioned storage medium may be, for example, memory 1002, storage 1003, or a database, server, or other appropriate medium including both memory 1002 and storage 1003.

[0160] The communication device 1004 is hardware (transmitting / receiving device) for communicating between computers via a wired network, a wireless network, or both wired and wireless networks, and is also referred to as, for example, a network device, a network controller, a network card, or a communication module. The communication device 1004 may be configured to include a high-frequency switch, a duplexer, a filter, a frequency synthesizer, or a combination of at least two of these. For example, a transmitting / receiving antenna, an amplifier unit, a transmitting / receiving unit, or a transmission path interface may be realized by the communication device 1004. The transmitting / receiving unit may be implemented as a transmitting unit and a receiving unit that are physically or logically separated.

[0161] The input device 1005 is an input device that accepts input from the outside (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, or a combination of at least two of these). The output device 1006 is an output device that outputs to the outside (for example, a display, a speaker, an LED lamp, or a combination of at least two of these). The input device 1005 and the output device 1006 may be integrated into one device (for example, a touch panel).

[0162] Furthermore, each device, such as the processor 1001 and the memory 1002, is connected by a bus 1007 for communicating information. The bus 1007 may be configured using a single bus, or may be configured using different buses between each device.

[0163] Furthermore, base station 10 and terminal 20 may be configured to include hardware such as a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a programmable logic device (PLD), a field programmable gate array (FPGA), a graphics processing unit (GPU), a neural processing unit (NPU), or a combination of at least two of these, and some or all of the functional blocks may be realized by the hardware. For example, processor 1001 may be implemented using at least one of these pieces of hardware.

[0164] <Additional notes> (Additional note 1) a transmitter that transmits a wake-up signal to a base station as a request for SIB1 (System Information Block 1); a receiving unit that starts monitoring a control channel for the SIB1 after a period based on a processing delay of the response has elapsed after receiving a response to the wake-up signal; A terminal comprising: (Additional note 2) The value of the period based on the processing delay is a value set from the base station to the terminal, a value specified in a specification, a value determined according to the capabilities of the terminal, or a value that differs depending on the SCS used by the terminal. A terminal as described in appendix 1. (Additional note 3) The response is a Random Access Response (RAR) transmitted from the base station on a Physical Data Shared Channel (PDSCH), or a Physical Downlink Control Channel (PDCCH) that schedules the PDSCH. A terminal as described in appendix 1. (Additional note 4) a transmitter that transmits a wake-up signal to a base station as a request for SIB1 (System Information Block 1); A receiving unit that receives the SIB1; a control unit that executes a predetermined handling operation when all or part of a data channel that transfers the SIB1 or a control channel that schedules the data channel overlaps with another signal or another channel; A terminal comprising: (Additional note 5) The control unit executes, as the predetermined handling operation, an operation of not transmitting or receiving the other signal or the other channel, or, as the predetermined handling operation, an operation of transmitting or receiving the other signal or the other channel. A terminal as described in Appendix 4. (Additional note 6) A communication method executed by a terminal, comprising: a transmitting step of transmitting a wake-up signal to a base station as a request for SIB1 (System Information Block 1); a receiving step of starting to monitor a control channel for the SIB1 after a period based on a processing delay of the response after receiving the response to the wake-up signal; A communication method comprising:

[0165] Any of the above configurations provides a technique for a terminal to perform appropriate operations after requesting an on-demand SIB1. According to supplementary clause 2, various values ​​can be used as the value of the period based on the processing delay. According to supplementary clause 3, the response for determining whether to start monitoring can be clarified. According to supplementary clause 5, the handling operation in the event of overlap can be clarified.

[0166] (Supplementary explanation of the embodiment) Although the present embodiment has been described above, the disclosed invention is not limited to such an embodiment, and those skilled in the art will understand various modifications, alterations, alternatives, and substitutions. While specific numerical examples have been used to facilitate understanding of the invention, unless otherwise specified, these numerical values ​​are merely examples, and any appropriate values ​​may be used. The division of items in the above description is not essential to the present invention; matters described in two or more items may be used in combination as needed, and matters described in one item may apply to matters described in another item (unless inconsistent). The boundaries between functional units or processing units in the functional block diagram do not necessarily correspond to the boundaries between physical components. The operations of multiple functional units may be performed by a single physical component, or the operations of a single functional unit may be performed by multiple physical components. The order of the processing steps described in the embodiments may be reversed as long as there is no contradiction. For convenience of processing description, the base station 10 and terminal 20 have been described using functional block diagrams. However, such devices may be implemented using hardware, software, or a combination thereof. The software operated by the processor of the base station 10 according to this embodiment and the software operated by the processor of the terminal 20 according to this embodiment may each be stored in random access memory (RAM), flash memory, read-only memory (ROM), EPROM, EEPROM, registers, hard disk (HDD), removable disk, CD-ROM, database, server or any other suitable storage medium.

[0167] The aspects / embodiments described in the present disclosure may be categorized as Long Term Evolution (LTE), LTE-Advanced (LTE-A), International Mobile Telecommunications-Advanced (IMT-Advanced), 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G-Advanced (5G-A), 6th generation mobile communication system (6G), xth generation mobile communication system (x is, for example, an integer or a decimal number)), Future Radio Access (FRA), New Radio (NR), New radio access (NX), Future generation radio access (FX), Open Radio Access Network (O-RAN), Wideband Code Division Multiple Access (W-CDMA) (registered trademark), Global System for Mobile communications (GSM) (registered trademark), CDMA2000, Ultra Mobile Broadband (UMB), Institute of Electrical and Electronics Engineers (IEEE) Engineers) 802.11, IEEE802.11x (where x is any character string such as b, a, g, n, ac, ax, be, or bn, and when x=n it is called Wi-Fi4, when x=ac it is called Wi-Fi5, when x=ax it is called Wi-Fi6 or Wi-Fi6E, when x=be it is Wi-Fi7, and when x=bn it is called Wi-Fi8, etc. Wi-Fi is a registered trademark.), IEEE802.16 (WiMAX (registered trademark), IEEE802.20, UWB (Ultra-Wide Band), Bluetooth (registered trademark), network virtualization technology (e.g., NFV (Network Function Virtualization), SFC (Service Function Chaining), SDN (Software Defined Networking)), or LPWA (Low Power Wide Area). Furthermore, each aspect / embodiment described in the present disclosure may be applied to a system based on a combination of at least two of these technologies. Furthermore, "based on" naturally refers not only to a system that uses the technology, but also to a system that uses an extension or modification of the technology.

[0168] In the present disclosure, any two terms selected from a set of terms such as "base station (BS)", "radio base station", "fixed station (fixed station)", "NodeB", "eNodeB (eNB)", "gNodeB (gNB)", "access point (AP)", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP)", "radio unit (RU)", "remote unit (RU)", "control unit (CU)", "distributed unit (DU)", "remote radio head (RRH)", "node", "gateway", "terrestrial base station", "stratospheric base station", "unmanned aerial vehicle", "high altitude platform station (HAPS)", "airborne platform", "panel", "cell", "radio access network (RAN)", and "network" may be used interchangeably.

[0169] Each cell accommodated by a base station may be referred to by terms such as a macro cell, a small cell, a femto cell, a pico cell, a serving cell, or a super cell. In the present disclosure, any two terms selected from a set of terms such as "cell," "sector," "cell group," "carrier," "component carrier," "cluster," "bandwidth part (BWP)," and "carrier bandwidth" may be used interchangeably.

[0170] In the present disclosure, any two terms selected from the set of terms such as "Mobile Station (MS)", "user terminal", "User Equipment (UE 20)", "Device", "Module" and "Terminal" may be used interchangeably.

[0171] A terminal may be referred to 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, router (e.g., home router, mobile router, etc.), TCU (Telematics Control Unit), or some other suitable terminology.

[0172] The base station and the terminal may each be composed of one or more devices. The devices constituting at least a portion of the base station and the terminal may be called a transmitting device, a receiving device, a communication device, etc. Note that the devices constituting at least a portion of the base station and the terminal may be, for example, an object itself, such as a vehicle, a transport vehicle, an automobile, a motorcycle, a bicycle, a connected car, an excavator, a bulldozer, a wheel loader, a dump truck, a forklift, a train, a bus, a handcar, a rickshaw, a ship and other watercraft, an airplane, a rocket, an unmanned aerial vehicle, a stratospheric base station (e.g., a High Altitude Platform Station (HAPS)), an artificial satellite (e.g., a Low Earth Orbit (LEO) satellite, a Medium Earth Orbit (MEO) satellite, a Geostationary Earth Orbit (GEO) satellite), a drone (registered trademark), a multicopter, a quadcopter, a balloon, or an Internet of Things (IoT) device (e.g., a smart meter, a sensor), or may include, but are not limited to, an object or device mounted on the object. Furthermore, the object may be a moving object (hereinafter referred to as a "moving object"; this does not exclude the case where the moving object is in a stationary state where it is not moving), or may be a fixedly positioned object (hereinafter referred to as a "non-moving object").

[0173] Furthermore, a base station in the present disclosure may be read as a terminal. For example, the aspects / embodiments of the present disclosure may be applied to a configuration in which communication between a base station and a terminal is replaced with communication between multiple terminals (which may be called, for example, D2D (Device-to-Device) or V2X (Vehicle-to-Everything)) or communication of a non-terrestrial network (NTN). In this case, the terminal 20 may be configured to have at least some of the functions of the base station 10 described above. Furthermore, terms such as "uplink" and "downlink" may be read as terms corresponding to communication between terminals (for example, "sidelink") or terms corresponding to NTN (for example, feeder link or service link). For example, an uplink channel or a downlink channel may be read as a sidelink channel.

[0174] The present disclosure is also applicable to cases where at least some of the devices constituting the base station and the terminal operate outside the earth (for example, in the atmosphere or outer space).

[0175] In addition, the term "terminal" in the present disclosure may be read as "base station." In this case, the base station 10 may be configured to have the functions of the terminal 20 described above.

[0176] The notification of information is not limited to the aspects / embodiments described in the present disclosure, and may be performed using other methods. For example, the notification of information may be performed by physical layer signaling (e.g., Downlink Control Information (DCI) and Uplink Control Information (UCI)), higher layer signaling (e.g., Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, broadcast information (Master Information Block (MIB) and System Information Block (SIB))), other signals, or a combination of at least two of these. Note that the physical layer signaling may be referred to as Layer 1 (L1) control information. The MAC signaling may be referred to as a MAC Control Element (CE) or a MAC Protocol Data Unit (PDU), for example. Furthermore, the RRC signaling may be referred to as an RRC message or an information element (IE) in the RRC message. The RRC message may be, for example, a message used for controlling an RRC connection (for example, setup, reconfiguration, establishment, reestablishment, release, or resume), mobility, a measurement report, or notification of a terminal's capabilities, or may be an information element within the message. Furthermore, notification of information may be explicit or implicit. Note that explicit notification of certain information means notification of the certain information itself, and implicit notification of certain information may mean notification of information other than the certain information, or may mean that the certain information is considered to have been notified when a certain condition is satisfied.Furthermore, notification of information may include not only notification between the same layers of different devices (e.g., between a lower layer or an upper layer of the base station 10 and the terminal 20) but also notification between different layers in the same or different devices (e.g., between a lower layer and an upper layer in the base station 10 or the terminal 20). Furthermore, notification of information from one device to another device may be performed via one or more devices. Regarding any information (e.g., a variable, a constant, a parameter, a setting) described in the present disclosure, even if not specifically stated in the above embodiments, information indicating / specifying (or related to) the any information (value) may be notified from any first device (e.g., a terminal / base station) to any second device (e.g., a base station / terminal).

[0177] The order of the procedures, sequences, flowcharts, etc. of each aspect / embodiment described in this disclosure may be changed unless it is consistent. For example, the methods described in this disclosure present elements of various steps using an example order, and are not limited to the particular order presented.

[0178] In the present disclosure, a specific operation described as being performed by a base station may be performed by its upper node or by some of its upper nodes (e.g., CU, RU, or DU, etc.) in some cases. It is clear that various operations performed for communication with a terminal in a RAN or core network may be performed by at least some of the base station and other network nodes other than the base station. The other network node may be one node or a combination of multiple nodes. The network node is, for example, a node provided in various core networks such as EPC (Evolved Packet Core) and 5GC (5G Core Network), and provides one or more network functions (NF: Network Functions), but is not limited to this.

[0179] Furthermore, in the present disclosure, the operation of "a terminal receives information from a base station" accompanies the operation of "the base station transmits the information to the terminal," "the base station generates the information," or both. Similarly, the operation of "a terminal transmits information to a base station" accompanies the operation of "the base station receives the information from the terminal." Furthermore, the operation of "the terminal is configured to ..." or "configure UE 20 to ..." may include the operation of "the base station transmits configuration information regarding the configuration of the terminal" and the operation of "the terminal configures a predetermined operation based on the configuration information."

[0180] Each aspect / embodiment described in the present disclosure may be used alone, in combination, or switched depending on the implementation.

[0181] The present disclosure has been described above, but it is for illustrative purposes only, and the present invention is not limited to the aspects / embodiments described in the present disclosure. The present disclosure can be implemented in modified and altered forms without departing from the spirit of the invention. The present disclosure and its modifications and alterations are included in the scope of the present invention and its equivalents.

[0182] As used in this disclosure, any reference to an element using a designation such as "first," "second," etc. does not generally limit the quantity or order of those elements. These designations may be used in this disclosure as a convenient method of distinguishing between two or more elements. Thus, a reference to a first and a second element does not imply that only two elements may be employed or that the first element must in some way precede the second element.

[0183] The radio resource may be defined by a combination of resource units in one or more domains, such as the time domain, the frequency domain, the spatial domain, the code domain, and the power domain.

[0184] For example, resources in the time domain may be defined by one or more time units. The one or more time units may include, but are not limited to, a radio frame, a subframe, a slot, a symbol, a transmission time interval (TTI), or a combination of at least two of these. The time unit may be a fixed-length time unit independent of numerology, a variable-length time unit dependent on numerology, or both. Examples of fixed-length time units include, but are not limited to, a subframe consisting of one or more slots and a radio frame including multiple subframes. Examples of variable-length time units include, but are not limited to, a symbol and a slot including a fixed number of symbols. A certain time unit may be divided into shorter time units. Examples of shorter time units include, but are not limited to, a minislot consisting of fewer symbols than the number of symbols constituting a slot. The above-described time units may include, for example, time units used as units for scheduling, link adaptation, etc. Furthermore, any time unit in the present disclosure may be read as another time unit.

[0185] Numerology is a parameter that defines the physical layer structure, and may be a parameter based on at least one of subcarrier spacing (SCS), symbol length, cyclic prefix length, and sampling time, for example.

[0186] Resources in the frequency domain may be defined, for example, by one or more frequency units. The one or more frequency units may include, for example, subcarriers, resource blocks (RBs), bandwidth parts (BWPs), carrier bandwidths, or a combination of at least two of these, but the terminology of the frequency units is not limited to these. The number of subcarriers included in a frequency unit may be a fixed number regardless of numerology, or may be a variable number that changes depending on numerology. For example, an RB is composed of a predetermined number of consecutive subcarriers in the frequency domain, and the number of subcarriers included in the RB may be the same regardless of numerology, for example, 12, but is not limited to this. A BWP may be composed of, for example, one or more consecutive RBs within a certain carrier bandwidth, but is not limited to this. One or more BWPs may be configured within one carrier for terminal 20, and at least one of the BWPs may be activated. Any frequency unit in the present disclosure may be interchangeable with another frequency unit.

[0187] Furthermore, resources in both the time domain and the frequency domain may be defined by one or more time / frequency units each consisting of a time unit and a frequency unit, such as, but not limited to, a resource element (RE) consisting of one symbol and one subcarrier, a resource element group (REG) consisting of a predetermined number of REs, or a control resource set (CORESET) consisting of a predetermined number of symbols and a predetermined number of RBs.

[0188] Furthermore, resources in the spatial domain may be defined, for example, by one or more spatial units, including, but not limited to, a beam, a layer of MIMO (Multi-Input Multi-Output), an antenna port, or a combination of at least two of these.

[0189] Furthermore, the resources in the code domain may be defined by one or more code units, such as, but not limited to, a cyclic shift (CS), an orthogonal cover code (OCC), or a combination thereof.

[0190] In this disclosure, where articles are added by translation, such as a, an, and the in English, the disclosure may include that the nouns following these articles are in the plural form.

[0191] The "means" in the configuration of each of the above devices may be replaced with "part," "circuit," "device," etc. [Explanation of symbols]

[0192] 10 base station 110 Transmitter 120 Receiver 130 Setting section 140 Control Unit 20 terminals 210 Transmitter 220 Receiving unit 230 Setting Section 240 Control Unit 1001 processor 1002 Storage device 1003 Auxiliary storage device 1004 Communication equipment 1005 Input Device 1006 Output Device

Claims

1. a transmitter that transmits a wake-up signal to a base station as a request for SIB1 (System Information Block 1); a receiving unit that starts monitoring a control channel for the SIB1 after a period based on a processing delay of the response has elapsed after receiving a response to the wake-up signal; A terminal comprising:

2. The value of the period based on the processing delay is a value set from the base station to the terminal, a value specified in a specification, a value determined according to the capabilities of the terminal, or a value that differs depending on the SCS used by the terminal. The terminal according to claim 1 .

3. The response is a Random Access Response (RAR) transmitted from the base station on a Physical Data Shared Channel (PDSCH), or a Physical Downlink Control Channel (PDCCH) that schedules the PDSCH. The terminal according to claim 1 .

4. a transmitter that transmits a wake-up signal to a base station as a request for SIB1 (System Information Block 1); A receiving unit that receives the SIB1; a control unit that executes a predetermined handling operation when all or part of a data channel that transfers the SIB1 or a control channel that schedules the data channel overlaps with another signal or another channel; A terminal comprising:

5. The control unit executes, as the predetermined handling operation, an operation of not transmitting or receiving the other signal or the other channel, or, as the predetermined handling operation, an operation of transmitting or receiving the other signal or the other channel. The terminal according to claim 4.

6. A communication method executed by a terminal, comprising: a transmitting step of transmitting a wake-up signal to a base station as a request for SIB1 (System Information Block 1); a receiving step of starting to monitor a control channel for the SIB1 after a period based on a processing delay of the response after receiving the response to the wake-up signal; A communication method comprising:

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