WO2023014105A1 - 무선 통신 시스템에서 제어 신호를 모니터링하는 방법 및 장치 - Google Patents
무선 통신 시스템에서 제어 신호를 모니터링하는 방법 및 장치 Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
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- H—ELECTRICITY
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- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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- H04L5/0001—Arrangements for dividing the transmission path
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- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
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- H—ELECTRICITY
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- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
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- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
- H04L27/26025—Numerology, i.e. varying one or more of symbol duration, subcarrier spacing, Fourier transform size, sampling rate or down-clocking
Definitions
- the present invention relates to methods and apparatus used in wireless communication systems.
- a wireless communication system is widely deployed to provide various types of communication services such as voice and data.
- a wireless communication system is a multiple access system capable of supporting communication with multiple users by sharing available system resources (bandwidth, transmission power, etc.).
- Examples of the multiple access system include a code division multiple access (CDMA) system, a frequency division multiple access (FDMA) system, a time division multiple access (TDMA) system, an orthogonal frequency division multiple access (OFDMA) system, and a single carrier frequency (SC-FDMA) system.
- CDMA code division multiple access
- FDMA frequency division multiple access
- TDMA time division multiple access
- OFDMA orthogonal frequency division multiple access
- SC-FDMA single carrier frequency
- a technical problem to be achieved by the present invention is to provide a signal monitoring method and apparatus for efficiently monitoring a control signal in a wireless communication system.
- the technical problem of the present invention is not limited to the technical problem described above, and other technical problems can be inferred from the embodiments of the present invention.
- the present invention provides a signal monitoring method and apparatus in a wireless communication system.
- PDCCH physical downlink control channel
- an apparatus for performing the signal monitoring method, a processor, and a storage medium are provided.
- information related to the PDCCH monitoring capability is provided in relation to combinations of a plurality of X and Y, and (ii) establishment of a search space set comprises the plurality of X and Y combinations.
- the PDCCH is monitored by X and Y of a specific combination associated with the largest M and C of the at least two combinations, wherein M is (i) the serving cell and (ii) a maximum number of monitored PDCCH candidates in a group of X slots per combination of X and Y per serving cell, wherein C is (i) the serving cell and (ii) a maximum number of non-overlapped CCEs in a group of X slots per combination of X and Y. per combination of X and Y per serving cell).
- a plurality of serving cells for PDCCH monitoring are configured including the serving cell, the plurality of serving cells include the same X slots as the serving cell, and the plurality of serving cells Based on the number exceeding the maximum number of cells in which the UE can monitor PDCCH, the number of PDCCH candidates to be monitored in the X slots in the plurality of serving cells may be reset.
- a plurality of serving cells for PDCCH monitoring are configured including the serving cell, the plurality of serving cells include the same X slots as the serving cell, and the plurality of serving cells Based on the number exceeding the maximum number of cells in which the UE can monitor the PDCCH, the number of non-overlapped control channel elements (CCEs) to be monitored in the X slots in the plurality of serving cells is reset.
- CCEs control channel elements
- the devices may include at least a terminal, a network, and an autonomous vehicle capable of communicating with other autonomous vehicles other than the device.
- 1 illustrates the structure of a radio frame.
- 3 shows an example in which physical channels are mapped into slots.
- CDMA may be implemented with a radio technology such as Universal Terrestrial Radio Access (UTRA) or CDMA2000.
- TDMA may be implemented with a radio technology such as Global System for Mobile communications (GSM)/General Packet Radio Service (GPRS)/Enhanced Data Rates for GSM Evolution (EDGE).
- GSM Global System for Mobile communications
- GPRS General Packet Radio Service
- EDGE Enhanced Data Rates for GSM Evolution
- OFDMA may be implemented with radio technologies such as IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802-20, and Evolved UTRA (E-UTRA).
- UTRA is part of the Universal Mobile Telecommunications System (UMTS).
- 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) is a part of Evolved UMTS (E-UMTS) using E-UTRA
- LTE-A (Advanced) / LTE-A pro is an evolved version of 3GPP LTE.
- 3GPP NR New Radio or New Radio Access Technology
- 3GPP LTE/LTE-A/LTE-A pro is an evolved version of 3GPP LTE/LTE-A/LTE-A pro.
- LTE refers to technology after 3GPP TS 36.xxx Release 8.
- LTE technology after 3GPP TS 36.xxx Release 10 is referred to as LTE-A
- LTE technology after 3GPP TS 36.xxx Release 13 is referred to as LTE-A pro
- 3GPP NR refers to technology after TS 38.xxx Release 15.
- LTE/NR may be referred to as a 3GPP system.
- "xxx" means standard document detail number.
- LTE/NR may be collectively referred to as a 3GPP system.
- RRC Radio Resource Control
- 1 illustrates the structure of a radio frame used in NR.
- uplink (UL) and downlink (DL) transmissions are composed of frames.
- a radio frame has a length of 10 ms and is defined as two 5 ms half-frames (Half-Frame, HF).
- a half-frame is defined as five 1ms subframes (Subframes, SFs).
- a subframe is divided into one or more slots, and the number of slots in a subframe depends on Subcarrier Spacing (SCS).
- SCS Subcarrier Spacing
- Each slot includes 12 or 14 OFDM(A) symbols according to a cyclic prefix (CP). When a normal CP is used, each slot includes 14 symbols. When an extended CP is used, each slot includes 12 symbols.
- the symbol may include an OFDM symbol (or CP-OFDM symbol) and an SC-FDMA symbol (or DFT-s-OFDM symbol).
- Table 1 illustrates that when a normal CP is used, the number of symbols per slot, the number of slots per frame, and the number of slots per subframe vary according to the SCS.
- Table 2 illustrates that the number of symbols per slot, the number of slots per frame, and the number of slots per subframe vary according to the SCS when the extended CP is used.
- OFDM(A) numerology eg, SCS, CP length, etc.
- UE User Equipment
- OFDM(A) numerology e.g, SCS, CP length, etc.
- UE User Equipment
- intervals of time resources e.g., SFs, slots, or TTIs
- TUs Time Units
- NR supports multiple Orthogonal Frequency Division Multiplexing (OFDM) numerologies (eg, subcarrier spacing, SCS) to support various 5G services.
- OFDM Orthogonal Frequency Division Multiplexing
- SCS subcarrier spacing
- the NR frequency band is defined as two types of frequency ranges (FR) (FR1/FR2).
- FR1/FR2 may be configured as shown in Table 3 below.
- FR2 may mean millimeter wave (mmW).
- 2 illustrates the slot structure of an NR frame.
- a slot includes a plurality of symbols in the time domain. For example, in the case of a normal CP, one slot includes 14 symbols, and in the case of an extended CP, one slot includes 12 symbols.
- a carrier includes a plurality of subcarriers in the frequency domain.
- a resource block (RB) is defined as a plurality of (eg, 12) consecutive subcarriers in the frequency domain.
- a plurality of RB interlaces (briefly, interlaces) may be defined in the frequency domain.
- the interlace m ⁇ 0, 1, ..., M-1 ⁇ may consist of (common) RBs ⁇ m, M+m, 2M+m, 3M+m, ... ⁇ .
- M represents the number of interlaces.
- BWP Bandwidth Part
- RBs eg, physical RBs, PRBs
- a carrier may include up to N (eg, 5) BWPs.
- Data communication is performed through an activated BWP, and only one BWP can be activated for one UE within one cell/carrier.
- Each element in the resource grid is referred to as a resource element (RE), and one modulation symbol may be mapped.
- RE resource element
- a terminal receives information from a base station through downlink (DL), and the terminal transmits information to the base station through uplink (UL).
- Information transmitted and received between the base station and the terminal includes data and various control information, and there are various physical channels/signals according to the type/use of the information transmitted and received by them.
- a physical channel corresponds to a set of resource elements (REs) carrying information derived from higher layers.
- a physical signal corresponds to a set of resource elements (REs) used by the physical layer (PHY), but does not carry information derived from higher layers.
- the upper layer includes a medium access control (MAC) layer, a radio link control (RLC) layer, a packet data convergence protocol (PDCP) layer, a radio resource control (RRC) layer, and the like.
- MAC medium access control
- RLC radio link control
- PDCP packet data convergence protocol
- RRC radio resource control
- the DL physical channels include a physical broadcast channel (PBCH), a physical downlink shared channel (PDSCH), and a physical downlink control channel (PDCCH).
- the DL physical signal includes a DL RS (Reference Signal), PSS (Primary Synchronization Signal), and SSS (Secondary Synchronization Signal).
- DL RS includes DM-RS (Demodulation RS), PT-RS (Phase-tracking RS), and CSI-RS (Channel-state information RS).
- UL physical channels include a Physical Random Access Channel (PRACH), a Physical Uplink Shared Channel (PUSCH), and a Physical Uplink Control Channel (PUCCH).
- UL physical signals include UL RS.
- UL RS includes DM-RS, PT-RS, and SRS (Sounding RS).
- 3 shows an example in which physical channels are mapped into slots.
- a DL control channel, DL or UL data, and a UL control channel may all be included in one slot.
- the first N symbols in a slot may be used to transmit a DL control channel (hereinafter, a DL control region), and the last M symbols in a slot may be used to transmit a UL control channel (hereinafter, a UL control region).
- N and M are each an integer greater than or equal to 0.
- a resource area (hereinafter referred to as a data area) between the DL control area and the UL control area may be used for DL data transmission or UL data transmission.
- a time gap for DL-to-UL or UL-to-DL switching may exist between the control region and the data region.
- PDCCH may be transmitted in the DL control region
- PDSCH may be transmitted in the DL data region.
- the base station may be, for example, gNodeB.
- PDSCH carries downlink data (eg, DL-shared channel transport block, DL-SCH TB). After the TB is coded with a codeword (CodeWord, CW), it is transmitted through scrambling and modulation processes.
- CW includes one or more code blocks (Code Blocks, CBs). One or more CBs may be grouped into one CBG (CB group).
- CB group CB group
- PDSCH can carry up to two CWs. Scrambling and modulation are performed for each CW, and modulation symbols generated from each CW are mapped to one or more layers. Each layer is mapped to a resource along with DMRS through precoding, and transmitted through a corresponding antenna port.
- PDSCH is dynamically scheduled by PDCCH (dynamic scheduling) or semi-static based on higher layer (eg, RRC) signaling (and/or Layer 1 (L1) signaling (eg, PDCCH)) It can be scheduled (Configured Scheduling, CS). Accordingly, PDCCH is accompanied by PDSCH transmission in dynamic scheduling, but PDCCH is not accompanied by PDSCH transmission in CS.
- CS includes semi-persistent scheduling (SPS).
- PDCCH carries Downlink Control Information (DCI).
- DCI Downlink Control Information
- PCCCH ie, DCI
- PCCCH includes transmission format and resource allocation of DL-SCH, frequency/time resource allocation information for UL-SCH (shared channel), paging information for PCH (paging channel), DL-SCH System information on PDSCH, frequency/time resource allocation information for higher layer control messages such as random access response (RAR) transmitted on PDSCH, transmission power control command, information on activation/cancellation of SPS/CS (Configured Scheduling), etc.
- RAR random access response
- SPS/CS Configured Scheduling
- Table 4 illustrates DCI formats transmitted through PDCCH.
- DCI format 0_0 is used to schedule TB-based (or TB-level) PUSCH
- DCI format 0_1 is TB-based (or TB-level) PUSCH or CBG (Code Block Group)-based (or CBG-level) PUSCH can be used to schedule
- DCI format 1_0 is used to schedule TB-based (or TB-level) PDSCH
- DCI format 1_1 is used to schedule TB-based (or TB-level) PDSCH or CBG-based (or CBG-level) PDSCH.
- Yes DL grant DCI).
- DCI format 0_0/0_1 may be referred to as UL grant DCI or UL scheduling information
- DCI format 1_0/1_1 may be referred to as DL grant DCI or UL scheduling information
- DCI format 2_0 is used to deliver dynamic slot format information (eg, dynamic SFI) to the UE
- DCI format 2_1 is used to deliver downlink pre-emption information to the UE.
- DCI format 2_0 and/or DCI format 2_1 may be delivered to terminals within a corresponding group through a group common PDCCH, which is a PDCCH delivered to terminals defined as one group.
- the PDCCH/DCI includes a cyclic redundancy check (CRC), and the CRC is masked/scrambled with various identifiers (eg, Radio Network Temporary Identifier, RNTI) according to the owner or usage of the PDCCH. For example, if the PDCCH is for a specific UE, the CRC is masked with C-RNTI (Cell-RNTI). If the PDCCH is for paging, the CRC is masked with Paging-RNTI (P-RNTI). If the PDCCH is related to system information (eg, System Information Block, SIB), the CRC is masked with System Information RNTI (SI-RNTI). If the PDCCH is for a random access response, the CRC is masked with RA-RNTI (Random Access-RNTI).
- CRC cyclic redundancy check
- RNTI Radio Network Temporary Identifier
- Table 5 illustrates the use and transmission channel of PDCCH according to RNTI.
- the transport channel represents a transport channel related to data carried by the PDSCH/PUSCH scheduled by the PDCCH.
- the modulation method of the PDCCH is fixed (e.g., Quadrature Phase Shift Keying, QPSK), and one PDCCH is composed of 1, 2, 4, 8, or 16 Control Channel Elements (CCEs) according to the Aggregation Level (AL).
- CCEs Control Channel Elements
- A Aggregation Level
- One CCE is composed of 6 REGs (Resource Element Groups).
- One REG is defined as one OFDMA symbol and one (P)RB.
- CORESET Control Resource Set
- CORESET corresponds to a set of physical resources/parameters used to carry PDCCH/DCI within BWP.
- CORESET contains a set of REGs with a given numonology (eg, SCS, CP length, etc.).
- CORESET may be configured through system information (eg, MIB) or UE-specific upper layer (eg, RRC) signaling. Examples of parameters/information used to set CORESET are as follows.
- One or more CORESETs are set for one terminal, and a plurality of CORESETs may overlap in the time/frequency domain.
- controlResourceSetId Indicates identification information (ID) of CORESET.
- duration Indicates time domain resources of CORESET. Indicates the number of consecutive OFDMA symbols constituting CORESET. For example, duration has a value of 1 to 3.
- - cce-REG-MappingType Indicates the CCE-to-REG mapping type. Interleaved and non-interleaved types are supported.
- precoder granularity Indicates precoder granularity in the frequency domain.
- TCI-StateID Transmission Configuration Indication
- TCI-state Transmission Configuration Indication
- QCL Quasi-Co-Location
- - pdcch-DMRS-ScramblingID Indicates information used to initialize the PDCCH DMRS scrambling sequence.
- the UE may monitor (eg, blind decoding) a set of PDCCH candidates in CORESET.
- the PDCCH candidate indicates CCE(s) monitored by the UE for PDCCH reception/detection.
- PDCCH monitoring may be performed in one or more CORESETs on active DL BWPs on each activated cell for which PDCCH monitoring is configured.
- a set of PDCCH candidates monitored by the terminal is defined as a PDCCH search space (Search Space, SS) set.
- the SS set may be a Common Search Space (CSS) set or a UE-specific Search Space (USS) set.
- Table 6 illustrates the PDCCH search space.
- the SS set may be configured through system information (eg, MIB) or UE-specific upper layer (eg, RRC) signaling.
- SS sets of S eg, 10
- RRC UE-specific upper layer
- SS sets of S eg, 10
- the following parameters/information may be provided for each SS set.
- Each SS set is associated with one CORESET, and each CORESET configuration may be associated with one or more SS sets.
- - searchSpaceId Indicates the ID of the SS set.
- controlResourceSetId Indicates CORESET associated with the SS set.
- -monitoringSlotPeriodicityAndOffset Indicates a PDCCH monitoring period interval (slot unit) and a PDCCH monitoring interval offset (slot unit).
- - monitoringSymbolsWithinSlot Indicates the first OFDMA symbol (s) for PDCCH monitoring within a slot in which PDCCH monitoring is configured. It is indicated through a bitmap, and each bit corresponds to each OFDMA symbol in the slot. The MSB of the bitmap corresponds to the first OFDM symbol in the slot. OFDMA symbol(s) corresponding to bit(s) having a bit value of 1 corresponds to the first symbol(s) of CORESET in a slot.
- - searchSpaceType Indicates whether the SS type is CSS or USS.
- - DCI format Indicates the DCI format of the PDCCH candidate.
- the UE can monitor PDCCH candidates in one or more SS sets within a slot.
- An opportunity eg, time / frequency resource
- PDCCH (monitoring) opportunity is defined as a PDCCH (monitoring) opportunity.
- PDCCH (monitoring) opportunities may be configured within a slot.
- the NR system supports a number of new monology (or subcarrier spacing, SCS) to support various 5G services. For example, when the SCS is 15 kHz, it supports a wide area in traditional cellular bands, and when the SCS is 30 kHz/60 kHz, dense-urban, lower latency And a wider carrier bandwidth is supported, and when the SCS is 60 kHz or higher, a band of 24.25 GHz or higher is supported.
- NR frequency bands up to Release 16 are defined as frequency ranges of two types (FR1 and FR2), and may be configured as shown in Table 3. In addition, discussions are underway to support future NR systems in a frequency band defined in FR1/FR2 or higher (eg, 52.6 GHz to 71 GHz).
- a frequency band higher than the FR1 and FR2 bands (e.g., 52.6 GHz to 114.25 GHz band, particularly 52.6 GHz to 71 GHz) may be referred to as FR2-2.
- Waveforms, SCS, CP length, timing, etc. defined for FR1 and FR2 in the existing NR system may not be applied to FR2-2.
- SCS For NR operation in the FR2-2 band, SCS of 120kHz, 480kHz, and 960kHz are used.
- the length of an OFDM symbol is shorter than that of 120 kHz.
- an OFDM symbol of 480 kHz is 1/4 times as long as an OFDM symbol of 120 kHz
- an OFDM symbol of 960 kHz is 1/8 times as long as an OFDM symbol of 120 kHz.
- the UE may have a burden such as power consumption. Accordingly, when 480 kHz and/or 960 kHz SCS is configured, multi-slot PDCCH monitoring may be introduced.
- Multi-slot PDCCH monitoring refers to an operation of performing PDCCH monitoring by determining blind decoding (BD)/control channel element (CCE) limits on a plurality of consecutive slots as a reference and/or unit.
- BD/CCE limits are determined in units of one slot
- BD/CCE limits are determined in units of spans confined to one slot.
- a span may mean a PDCCH monitoring unit composed of consecutive symbols.
- the BD restriction is "Maximum number of monitored PDCCH candidates for a DL BWP with SCS configuration for a single serving cell" in the 3GPP standard
- the CCE restriction is "Maximum number of non-overlapped CCEs for a DL BWP with SCS configuration for a DL BWP with SCS configuration in the 3GPP standard. a single serving cell".
- a span is defined as consecutive PDCCH monitoring occasions (MOs).
- a span can be in the form of a series of symbols within a slot.
- a slot-group is composed of a plurality of contiguous slots of a specific number (which can be expressed as X).
- BD/CCE restrictions may be defined in units of another specific number (which may be expressed as Y) of a plurality of contiguous slots (or symbols) within one slot-group.
- X 4
- Y 2
- X 4
- Y 2
- Y 2
- X 8
- the above two examples are one of the application methods being discussed in the 3GPP RAN1 WG, and may have the advantage that the slot-group of 480 kHz and/or 960 kHz is equal to the slot length of the 120 kHz SCS.
- the number of slots or symbols constituting Y may be changed through higher layer signaling such as RRC or may be changed through UE capability signaling, and the location of Y in X may be similar. method can be changed.
- a UE (eg, UE) supporting carrier aggregation is the number of DL cells capable of performing BD/CCE (specifically, In the following technology, it is indicated as N_cap) can be reported to the network (eg, gNB) with pdcch-BlindDetectionCA, etc., and also the number of DL serving cells from the network (specifically , or , which is indicated as N_dl in the following description) can be set.
- the network eg, gNB
- pdcch-BlindDetectionCA pdcch-BlindDetectionCA
- the The UE includes in UE-NR-Capability an indication for a maximum number of PDCCH candidates and for a maximum number of non-overlapped CCEs the UE can monitor per slot when the UE is configured for carrier aggregation operation over more than 4 cells.
- the UE determines a capability to monitor a maximum number of PDCCH candidates and a maximum number of non-overlapped CCEs per slot that corresponds to downlink cells, where - is +R if the UE does not provide pdcch-BlindDetectionCA where + is the number of configured downlink serving cells -otherwise, is the value of pdcch-BlindDetectionCA
- Table 8 is an excerpt from section 10.1 of 3GPP 38.214, which expresses an example of BD/CCE restatement. Table 8 is for per-slot PDCCH monitoring, BD and CCE restrictions (i.e., and ) is reset in units of slots using N_cap and N_dl. Meanwhile, per-span PDCCH monitoring is also described in the same section.
- a plurality of cells for which multi-slot monitoring is set are CA
- X and/or Y of each cell are set differently, ambiguity may occur when BD/CCE limits are reset.
- X 4
- X 8
- the 3rd to 6th slots in X are set, if the BD/CCE limit is reset in a situation where N_cap ⁇ N_dl, an ambiguous situation may occur as to which slot period should be the reference.
- variable Mslot in the above formula is a variable for single-slot PDCCH monitoring changed to suit multi-slot PDCCH monitoring.
- BD restriction ie, Maximum number of monitored PDCCH candidates per multi-slot for a DL BWP with SCS configuration ⁇ for a serving cell
- J denotes a set of SCS settings ⁇ for all cells included in CA.
- BD/CCE resetting may be required when N_cap ⁇ N_dl in a CA situation of a plurality of cells including a cell configured for multi-slot PDCCH monitoring (e.g., a cell configured for 480 kHz and/or 960 kHz SCS).
- the reference period of BD/CCE resetting may vary according to the position and size of X and/or Y for configuring multi-slot PDCCH monitoring.
- Y of a cell for which single-slot monitoring is configured may also be interpreted as 1 slot.
- BD/CCE resetting can be performed using Equations 3 and 4.
- the cells may have different numerologies or SCSs.
- the reference period of resetting may be a slot-group.
- the terminal may compare N_cap and N_dl in units of X slots, which are slot-groups, and reset BD/CCE if N_cap ⁇ N_dl.
- the UE can reset BD/CCE using Equations 3 and 4 .
- the reference period of resetting may be Y slots or symbols.
- a reference period for resetting BD/CCE may need to be applied differently using Equations 3 and 4.
- the cells may have different numonologies.
- a plurality of cells may have the same numonology.
- the reference interval for BD/CCE resetting can be set in three ways.
- a reset reference interval may be set based on the largest Y among Ys set in all cells included in CA. That is, if "Union of PDCCH monitoring occasion on all serving cells" is included in the largest Y, the largest Y may be set as a reference interval for resetting, and BD/CCE may be reset.
- the size of Y_upper can be set to a value smaller than or equal to X.
- the starting point of Y_upper may be determined as a symbol including the first PDCCH MO for all cells.
- a specific number e.g., X/2
- X/2 the number of consecutive symbols from the determined start symbol may be set as a reference interval for BD/CCE resetting.
- slot-groups that is, X slots may be set as a reference period for BD/CCE resetting .
- the UE may set a reference SCS and use a slot corresponding to the reference SCS as a reference interval for BD/CCE resetting.
- the reference SCS may be one of SCSs configured in a cell included in CA.
- the reference SCS may be the smallest SCS among configured SCSs.
- the reference SCS may be an SCS that is not configured in cells configured in the UE.
- 120 kHz may be a mandatory SCS, and 480 kHz and 960 kHz may be optional SCSs.
- 'mandatory a' means that the terminal necessarily supports a, and 'optional a' means that the terminal may or may not support a.
- the 120 kHz SCS may be determined as the reference SCS.
- Information on the reference SCS may be set to the UE through signaling such as RRC.
- the reference SCS may be determined as a combination of SCSs of cells included in CA or may be predefined.
- 120 kHz may be used as a reference SCS in the FR2-2 band.
- 120 kHz may be determined as a reference SCS.
- consecutive X slots for a specific cell included in CA may be determined as a reference interval for BD/CCE resetting.
- the specific cell may be determined as a cell having the lowest cell index or the highest cell index among cells having the same numerology.
- a specific cell may be configured/instructed by the base station using a parameter such as RRC. More restrictively (or specifically), a specific cell may be determined as a cell having the lowest cell index or the highest cell index among cells having the same numerology and/or the same X and/or the same Y.
- the cells may have different numonologies. Alternatively, a plurality of cells may have the same numonology.
- the terminal may perform BD/CCE reset using Equations 3 and 4 in the set reference interval. Or even if slot-groups are not aligned, "Union of PDCCH monitoring occasion on all serving cells" of all cells included in CA (similar to method 1.2-1-(1) or 1.2-2-(2) above) When is included in the largest Y or Y_upper, the terminal may set the largest Y or Y_upper as a reference interval for BD/CCE resetting.
- Equations 3 and 4 may be applied to multi-slot or multi-symbol spans.
- X means the minimum distance between the spans
- Y means the maximum size of the spans.
- the above-described process of comparing N_cap and N_dl based on X slots and determining if BD/CCE reset is necessary and methods of setting a reset reference period are based on a span consisting of a plurality of slots or symbols can be applied as
- Y may mean a plurality of consecutive slots or a plurality of consecutive symbols.
- the UE determines the slot length of the reference SCS as a specific time interval to reset BD/CCE or calculate BD/CCE limits.
- one slot of 120 kHz may be set as a reference interval (specific time interval) of BD/CCE resetting for 480 kHz or 960 kHz.
- a method of checking the BD/CCE restriction is proposed. If the slot-groups of all cells included in CA are aligned (or if other time references such as the largest Ys or Y_uppers of cells are aligned), the UE performs BD/CCE within a specific aligned time interval. Limits are determined and checked. However, when all cells do not include the aligned specific time intervals, the BD/CCE restrictions may be determined or the BD/CCE restrictions may be checked only for some cells including the aligned specific time intervals.
- slot-groups of cell #1 and cell #2 may be aligned, and slot-groups of cell #3 and cell #4 may be aligned.
- the slot length of the aligned slot-groups of cell #1 and cell #2 is called slot-group 1
- the slot length of the aligned slot-groups of cell #3 and cell #4 is called slot group 2. If slot-group 1 and slot group 2 are not aligned, cells corresponding to slot-group 1 and cells corresponding to slot-group 2 are regarded as individual new monology, and BD/CCE limits are determined separately or BD/CCE CCE limits may be checked.
- the BD/CCE limit is calculated in common for the three cells.
- the BD/CCE limit is calculated separately from the other 3 cells.
- BD/CCE resetting and/or BD/CCE limit calculation may be performed separately.
- setting (or BD/CCE resetting and/or BD/CCE limit calculation may be separately performed according to the reported combination of X and/or Y.
- the network and/or the base station configure the PDCCH so that the corresponding UE does not exceed the BD/CCE limit through search space configuration. Overbooking is allowed for USS allocated to a primary cell or a primary secondary cell. The UE does not perform BD exceeding the BD/CCE limit or does not perform CCE through dropping.
- the USS Dropping may be performed based on a new slot-group period aligned with a slot of a cell for single-slot PDCCH monitoring. USS dropping may also be performed based on an unsorted, initially configured slot-group. In addition, among newly configured slot-groups, that is, newly configured X slots, a portion that is not aligned with an existing slot-group may be dropped with the highest priority during USS dropping.
- X slots and Y slots (or symbols) for configuring multi-slot PDCCH monitoring may be determined through configuration and/or report of a network or UE. More specifically, the UE may be configured with X and/or Y values through signaling such as RRC. The UE may inform the network of (operable or) preferred X and Y through a capability report prior to receiving signaling such as RRC. At this time, the values of X and/or Y that are set or reported may be the respective positions and sizes.
- the UE may perform a multi-slot PDCCH monitoring operation assuming a preset default X and/or default Y.
- the corresponding default X and default Y values may be determined in units of slots.
- X and Y values can be defined as a plurality of different values.
- the default X and Y values used by the UE may be defined as the maximum value among a plurality of X values in the case of X and the minimum value among a plurality of Y values in the case of Y.
- the default X and Y values may be defined as a combination of a maximum X value and a minimum Y value that can be combined (on the corresponding X value and UE capability).
- the default X and Y values may be defined as a combination of a minimum Y value and a maximum X value that can be combined (on the corresponding Y value and UE capability).
- the default X may be defined as the minimum value among a plurality of X values
- the default Y value may be defined as the minimum value among a plurality of Y values.
- the default X and Y values may be defined as a combination of a minimum X value and a minimum Y value that can be combined (on the corresponding X value and UE capability).
- the default X and Y values may be defined as a combination of a minimum Y value and a minimum X value that can be combined (on the corresponding Y value and UE capability).
- the terminal may set X to align with the slot boundary of the 120 kHz SCS (or reference SCS).
- the terminal may set X to align with the slot boundary of 120 kHz (or standard SCS).
- the UE may differently determine the location of X within a frame or half frame. For example, the default X must align with the slot boundary of the 120 kHz SCS. At this time, the slot index of the 120 kHz SCS aligned within one frame may vary depending on the index of the successfully received SSB.
- the slot containing the corresponding CORESET#0 can be determined as the starting point of X and/or Y. can Alternatively, even if the position of X is the same, the position of Y in the X slot may be different according to the SSB index.
- a multiplexing pattern between SSB and CORESET and (ii) a slot index including a Type0-PDCCH common search space (CSS) set to be monitored by the SSB index (if the multiplexing pattern is 1, n 0 or If the multiplexing pattern is 2/3, n c ) may be determined.
- Table 9 is an excerpt from Section 13 of the conventional 3GPP TS 38.213 document, and is a set of Type0-PDCCH common search space (CSS) to be monitored by (i) multiplexing pattern between SSB and CORESET and (ii) SSB index It shows an example in which the slot index including is determined.
- slot index n 0 to monitor the Type0-PDCCH CSS set according to SSB index i is can be determined by Accordingly, n 0 slots defined for each SSB index i may be determined as a starting point of X for each SSB index i. Alternatively, X may be aligned with a slot boundary of a specific reference SCS (eg, 120 kHz), and n 0 slots defined for each SSB index i may be determined as a starting point of Y for each SSB index i.
- a specific reference SCS eg, 120 kHz
- a CCE index may be determined as shown in Table 10 in relation to PDCCH monitoring in units of slots.
- Table 10 is part of the prior 3GPP TS 38.213 document.
- slot-group units value can be calculated.
- CCE index calculation can be performed in units of slot-groups. Specifically Is is changed to Is can be defined as
- a hashing operation for calculating the CCE index may be performed in units of 4 slots (ie, the same for 4 consecutive slots) using .
- X means the number of consecutive slots formed by the slot-group or the (minimum) distance/separation section of spans in which the PDCCH MO exists.
- X is a value that can be predefined according to SCS or set by higher layer signaling such as RRC. X may be reported by the terminal as a UE capability.
- multi-slot PDCCH monitoring is performed in units of slot-groups (composed of consecutive X slots) and units of Y slots in the slot-group, or when PDCCH MO exists only in Y slots, X or Y slots in the field or or or
- the CCE index may be determined by matching the values equally.
- multi-slot PDCCH monitoring is performed in units of a predefined (X, Y) span (or a span in which X and/or Y are changed in units of slots) and Y slots (or symbols), or Y If the PDCCH MO exists only in slots (or symbols), in X or Y slots (or symbols) or or The CCE index may be determined by matching the values equally.
- BD/CCE handling related to multi-slot PDCCH monitoring operation in high frequency bands e.g., 52.6 GHz and higher frequency bands
- high SCS e.g., 480 kHz, 960 kHz
- slot-group can be made in units.
- PDCCH-related procedures such as SS set configuration, SS allocation, PDCCH overbooking, and SS set dropping may be performed in slot-group units.
- the number of slots forming a slot-group is defined as X.
- PDCCH monitoring may be performed only within Y slots.
- PDCCH MOs may be configured (or located) only in Y slots for a specific SS set.
- the specific SS set may mean, for example, Type 1 CSS with dedicated RRC configuration and/or type 3 CSS and/or UE specific SS, but is not limited thereto.
- the (X, Y) combination may be a different value according to the SCS of the channel (e.g., PDCCH) including the PDCCH.
- the SCS of the channel e.g., PDCCH
- [Table 11] exemplifies (X, Y) combinations for each SCS.
- X, Y Mandatory (X, Y) and/or optional (X, Y) are instructed and/or configured by the base station (e.g., gNB) to the terminal (e.g., UE).
- the UE may perform multi-slot PDCCH monitoring according to the configured (X, Y).
- the terminal reports a preferred (or supportable / capable) combination (or multiple combinations) among possible (X, Y) combinations to the base station, and the following 1.5-1-(1), 1.5-1-( One of the methods of 2) may be used to determine the (X, Y) combination in which multi-slot PDCCH monitoring operates.
- the UE is explicitly instructed and/or set to one of supportable (X, Y) combinations (or supportable X values) through signaling such as RRC from the base station.
- the terminal is instructed and / or set the MO location through SS set setting, etc., instead of explicit signaling for a separate (X, Y) combination (or X value) from the base station.
- the terminal may assume and/or infer (X, Y) configured by the base station through SS set configuration, etc., and perform multi-slot PDCCH monitoring according to the result of the assumption and/or inference.
- supportable (X, Y) combinations may be different depending on the capabilities of each UE.
- the terminal reports that a specific (X, Y) combination is possible to the base station through UE capability signaling.
- the (X, Y) combination reported by the terminal to the base station is expressed as (Xu, Yu).
- the combination of (X, Y) set to the terminal based on the (Xu, Yu) combinations reported by the base station is expressed as (Xg, Yg).
- a combination of criteria (X, Y) for setting the SS set of the base station may be expressed as (Xg, Yg).
- a combination of (X, Y) expected to operate assuming that the terminal is operated through SS set configuration may be expressed as (Xg, Yg).
- the terminal can expect the value of Xg to be equal to or greater than Xu and/or the value of Yg to be equal to or less than Yu.
- the minimum unit of some or all of the parameters (e.g., periodicity and/or offset and/or duration) for the SS set is greater than Xu (or Xg), or the periodicity and/or offset value is Xu (or Xg) to be set as a multiple, the terminal can expect.
- Xg, Yg) set by the base station Xg is not limited to one of Xu, and Yg is not limited to one of Yu.
- the base station configures the SS set so that the combination of (8, 1) is derived by the terminal.
- the terminal may operate in anticipation that the SS set corresponding to (8, 1) is set (or the MO is located according to the combination of (8, 1)).
- the terminal may report to the base station that a plurality of (X, Y) combinations are available for a specific serving cell (or DL BWP or SCS). For example, the terminal may report (Xu_1, Yu_1) and (Xu_2, Yu_2) to the base station.
- the terminal sets the base station (or the terminal actually (X, Y) combinations to be applied for monitoring can be estimated.
- the terminal may report a selective combination among the (X, Y) combinations of Table 11. If the SS set configuration received by the UE does not match the reported (X, Y) combination, the UE may operate assuming that the base station has configured an essential combination.
- the UE reports a selective combination (4, 1) for a specific cell (or DL BWP) of 960 kHz SCS. If the SS set setting period received by the UE does not match (4, 1), the UE determines (8, 1), which is an essential combination, as the (X, Y) combination to be applied to a specific cell (or DL BWP) and perform PDCCH monitoring.
- the terminal when the set MO pattern does not match the combination (4, 1), the terminal performs PDCCH monitoring based on the combination (8, 1). Accordingly, the terminal may perform PDCCH monitoring based on a slot-group composed of 8 slots.
- the terminal reports a specific combination (s) from supportable (X, Y) combinations to the base station (eg, it may be some of the combinations of Table 11)
- the SS set setting corresponds to (X, Y) If it matches the combination, the PDCCH monitoring operation may be performed assuming that the corresponding (X, Y) combination is a combination set by the base station.
- the terminal reports to the base station a specific (X, Y) combination (s) selected from supportable (X, Y) combinations.
- the reported combination may be some of the combinations in Table 11.
- the terminal sets the specific (X, Y) to the base station configured (X, Y) ) combination and perform PDCCH monitoring operation.
- the terminal reports essential combinations (X_1, Y_1) and optional combinations (X_2, Y_2) among the combinations of Table 11 to the base station.
- the UE may perform PDCCH monitoring by assuming a combination matching the SS set configuration (or MO pattern) among the two combinations as a combination configured by the base station.
- the terminal reports only selected combinations (X_2, Y_2) from among the combinations of Table 11 to the base station.
- the UE may perform PDCCH monitoring assuming that the combination that matches the SS set configuration (or MO pattern) among the reported combination and the combination essential for the corresponding SCS is a combination configured by the base station.
- the terminal assumes the combination (max(Xu_1, Xu_2, ..., Xu_C), min(Yu_1, Yu_2, ..., Yu_C)) as the (X, Y) combination set by the base station and can operate.
- the terminal when the terminal reports two combinations (8, 1) and (4, 1) for 960 kHz, and determines a suitable (X, Y) combination through the MO pattern and / or SS set setting, If (8, 1) and (4, 1) do not violate the parameters of the MO pattern and / or SS set setting, the terminal selects (8, 1) from the two reported combinations (X, Y ) can be assumed and operated in combination.
- Xg may be determined as the maximum value among reported Xu (that is, max(Xu_1, Xu_2, ..., Xu_C)), and Y may be determined as the minimum Y that can be combined with the corresponding Xg.
- a series of operations e.g. PDCCH-related procedures such as SS allocation, PDCCH overbooking, and SS (set) dropping
- PDCCH-related procedures such as SS allocation, PDCCH overbooking, and SS (set) dropping
- the terminal can operate assuming that max(Xu_1, Xu_2, ..., Xu_C) is X set by the base station, and Y that can be coupled to the corresponding X is Y set by the base station .
- the terminal sets (Xu_k, Yu_k) to (Xu_k, Yu_k) set by the base station ( It can be assumed and operated as a combination of X, Y). If there is one combination having Xu_k among the C combinations, the terminal determines the combination to be used as (Xu_k, Yu_k). If there are two or more Ys corresponding to one Xu_k, the terminal can estimate and/or determine the (X, Y) combination set by the base station using the smallest Y among the Ys.
- max(8, 4) (8,1) corresponding to 8, which is the result value of can be a (X, Y) combination assumed by the terminal.
- the terminal assumes the X value defined by the largest number of BC/CCEs among Xu_1, Xu_2, and Xu_3 as X set by the base station, If there is one Y combined with X, it can be assumed to be Y set by the base station.
- the terminal may assume the (X, Y) combination set by the base station using the minimum value of Y and the hypothesized X among the plurality of Ys, and the combination
- a series of operations e.g. PDCCH-related procedures such as SS allocation, PDCCH overbooking, and SS (set) dropping
- PDCCH-related procedures such as SS allocation, PDCCH overbooking, and SS (set) dropping
- the terminal may perform a monitoring operation assuming that max(Xu_1, Xu_2, ..., Xu_C) is X set by the base station. That is, the terminal may perform monitoring by estimating only X set by the base station.
- Y may be Y combined with the corresponding X among (X, Y) reported by the terminal, or Y combined with the corresponding X among the (X, Y) supportable for the SCS, Among the essential (X, Y) for, it may be Y combined with the corresponding X. For example, if only the combination of Table 11 is defined, Y can always be assumed to be 1 regardless of SCS and X.
- the UE may perform a series of operations (e.g.
- PDCCH-related procedures such as SS allocation, PDCCH overbooking, and SS (set) dropping) based on the determined and/or estimated (X, Y) combination.
- a base station in the present invention may be a concept including a relay node as well as a base station.
- the operation of the base station in the present invention may be performed by a base station or may be performed by a relay node.
- FIG. 6 is a flowchart of a method for transmitting and receiving a signal according to an embodiment of the present invention.
- an embodiment of the present invention may be performed by a UE, setting a combination of X and Y for monitoring a PDCCH in a serving cell (S601), a combination of X and Y on a serving cell It may be configured to include monitoring the PDCCH based on (S603).
- one or more of the operations described in Section 1 may be additionally performed.
- X represents the number of consecutive slots included in the slot-group as described above. Referring to FIG. 5, slot-groups are continuously repeated without overlapping. Y represents the number of consecutive slots within one slot-group. Since the slot-groups repeat consecutively without overlapping, the Y slots also repeat at the same location within the X slots.
- the UE may set default X and default Y to monitor the PDCCH. In other words, if information related to the PDCCH monitoring capability for the serving cell is not provided, the UE may set default X and default Y to monitor the PDCCH.
- the default X 4 for 480 kHz SCS
- 4 is the maximum value of Xs that can be used in 480 kHz SCS
- 1 may be because it is the smallest value among Ys that can be used in 480 kHz SCS.
- X is the maximum value that can be used in the specific SCS
- Y is the minimum value that can be used in the specific SCS.
- a combination consisting of may be used. Since the methods of the present specification relate to a high frequency band in which a high SCS of 480 kHz or more can be used, the threshold value may be 480 kHz.
- the terminal may report a plurality of combinations of X and Y to the base station as a terminal capability, and may use one of the plurality of combinations according to the configuration of the search space set. If the setting of the search space set corresponds to a plurality of D combinations equal to or smaller than C among the C combinations, the terminal selects one of the D combinations through one of the three methods in 1.5-2. and monitor the PDCCH.
- Section 1.3 Since the operation of Section 1.3 can be performed when information related to the PDCCH monitoring capability for the serving cell is not provided, and the operation of Section 1.5 can be performed when information related to the PDCCH monitoring capability for the serving cell is provided, they are compatible and can be combined. Those skilled in the art can easily know that these are possible embodiments.
- the UE may monitor the PDCCH by selecting an X value in which the largest number of BD/CCEs is defined among D combinations.
- Y is set to a specific value combined with the selected X.
- the BD number is the maximum number of PDCCH candidates monitored in the serving cell
- the CCE number is the maximum number of non-overlapping CCEs in the serving cell.
- the BD/CCE limit can be defined in units of a plurality of slots
- the number of BD/CCEs can be defined in units of combinations of X and Y.
- the number of BD/CCEs is defined for the value of X (in a group of X slots)
- the number of BDs is monitored within a group of X slots per serving cell and combination of X and Y.
- the UE selects X associated with the largest number of BD/CCEs among a plurality of D combinations corresponding to the search space set configuration. Y is selected as Y belonging to the same combination as the corresponding X.
- the terminal may monitor the PDCCH by a specific combination of X and Y related to the largest M and C of at least two combinations.
- M means the number of BDs
- C means the number of CCEs.
- the number of BD/CCEs may be reset. For example, referring to 1.2-1, when a plurality of serving cells configured in the terminal have the same position and size of X, BD/CCE resetting is performed in units of X slots.
- Sections 1.1 and 1.2 are for determining the number of blind decoding and the number of CCEs, so those skilled in the art can easily recognize that they can be combined with other embodiments.
- the number of monitored PDCCH candidates is reset when BD is reset, based on the number of serving cells exceeding the number of cells in which the UE can perform PDCCH monitoring, PDCCH in units of X slots for a plurality of serving cells The number of candidates is reset.
- the number of non-overlapping CCEs is reset when the CCE is reset, based on the number of serving cells exceeding the number of cells in which the UE can perform PDCCH monitoring, X slots unit for the plurality of serving cells.
- the number of non-overlapping CCEs is reset to .
- the default X and/or specific X are for one serving cell, and the default X and/or Alternatively, one serving cell in which a specific X is set and a plurality of CA-cached serving cells may be configured together.
- the operation of 1.2-1 may be performed.
- a plurality of serving cells for PDCCH monitoring are set including a serving cell in which default X and/or specific X are set, and the plurality of serving cells use the same X slots as the serving cell in which default X and/or specific X are set. If included, the number of PDCCH candidates to be monitored in the X slots in the plurality of serving cells may be reset based on the number of serving cells exceeding the maximum number of cells in which the UE can monitor the PDCCH.
- a plurality of serving cells for PDCCH monitoring are set including a serving cell in which default X and/or specific X are set, and the plurality of serving cells include the same X slots as the serving cell in which default X and/or specific X are set.
- the number of CCEs that do not overlap in the X slots of the plurality of serving cells may be reset based on the number of serving cells exceeding the maximum number of cells in which the UE can monitor the PDCCH.
- Section 1.4 Since the operation of Section 1.4 is for determining a hashing function for PDCCH monitoring after the combination of X and Y is determined, those skilled in the art can easily recognize that it can be combined with other embodiments.
- FIG. 7 illustrates a communication system 1 applied to the present invention.
- a communication system 1 applied to the present invention includes a wireless device, a base station and a network.
- the wireless device means a device that performs communication using a radio access technology (eg, 5G New RAT (NR), Long Term Evolution (LTE)), and may be referred to as a communication/wireless/5G device.
- a radio access technology eg, 5G New RAT (NR), Long Term Evolution (LTE)
- wireless devices include robots 100a, vehicles 100b-1 and 100b-2, XR (eXtended Reality) devices 100c, hand-held devices 100d, and home appliances 100e. ), an Internet of Thing (IoT) device 100f, and an AI device/server 400.
- IoT Internet of Thing
- the vehicle may include a vehicle equipped with a wireless communication function, an autonomous vehicle, a vehicle capable of performing inter-vehicle communication, and the like.
- the vehicle may include an Unmanned Aerial Vehicle (UAV) (eg, a drone).
- UAV Unmanned Aerial Vehicle
- XR devices include Augmented Reality (AR)/Virtual Reality (VR)/Mixed Reality (MR) devices, Head-Mounted Devices (HMDs), Head-Up Displays (HUDs) installed in vehicles, televisions, smartphones, It may be implemented in the form of a computer, wearable device, home appliance, digital signage, vehicle, robot, and the like.
- a portable device may include a smart phone, a smart pad, a wearable device (eg, a smart watch, a smart glass), a computer (eg, a laptop computer, etc.), and the like.
- Home appliances may include a TV, a refrigerator, a washing machine, and the like.
- IoT devices may include sensors, smart meters, and the like.
- a base station and a network may also be implemented as a wireless device, and a specific wireless device 200a may operate as a base station/network node to other wireless devices.
- the wireless devices 100a to 100f may be connected to the network 300 through the base station 200 .
- AI Artificial Intelligence
- the network 300 may be configured using a 3G network, a 4G (eg LTE) network, or a 5G (eg NR) network.
- the wireless devices 100a to 100f may communicate with each other through the base station 200/network 300, but may also communicate directly (eg, sidelink communication) without going through the base station/network.
- the vehicles 100b-1 and 100b-2 may perform direct communication (eg, vehicle to vehicle (V2V)/vehicle to everything (V2X) communication).
- IoT devices eg, sensors
- IoT devices may directly communicate with other IoT devices (eg, sensors) or other wireless devices 100a to 100f.
- Wireless communication/connection 150a, 150b, and 150c may be performed between the wireless devices 100a to 100f/base station 200 and the base station 200/base station 200.
- wireless communication/connection refers to various wireless connections such as uplink/downlink communication 150a, sidelink communication 150b (or D2D communication), and inter-base station communication 150c (e.g. relay, Integrated Access Backhaul (IAB)).
- IAB Integrated Access Backhaul
- Wireless communication/connection (150a, 150b, 150c) allows wireless devices and base stations/wireless devices, and base stations and base stations to transmit/receive radio signals to/from each other.
- the wireless communication/connection 150a, 150b, and 150c may transmit/receive signals through various physical channels.
- various signal processing processes eg, channel encoding/decoding, modulation/demodulation, resource mapping/demapping, etc.
- resource allocation processes etc.
- FIG 8 illustrates a wireless device that can be applied to the present invention.
- the first wireless device 100 and the second wireless device 200 may transmit and receive radio signals through various radio access technologies (eg, LTE, NR).
- ⁇ the first wireless device 100, the second wireless device 200 ⁇ is the ⁇ wireless device 100x, the base station 200 ⁇ of FIG. 7 and/or the ⁇ wireless device 100x, the wireless device 100x.
- ⁇ can correspond.
- the first wireless device 100 includes one or more processors 102 and one or more memories 104, and may additionally include one or more transceivers 106 and/or one or more antennas 108.
- the processor 102 controls the memory 104 and/or the transceiver 106 and may be configured to implement the descriptions, functions, procedures, suggestions, methods and/or flowcharts of operations disclosed herein.
- the processor 102 may process information in the memory 104 to generate first information/signal, and transmit a radio signal including the first information/signal through the transceiver 106.
- the processor 102 may receive a radio signal including the second information/signal through the transceiver 106, and then store information obtained from signal processing of the second information/signal in the memory 104.
- the memory 104 may be connected to the processor 102 and may store various information related to the operation of the processor 102 .
- memory 104 may perform some or all of the processes controlled by processor 102, or instructions for performing the descriptions, functions, procedures, suggestions, methods, and/or flowcharts of operations disclosed herein. It may store software codes including them.
- the processor 102 and memory 104 may be part of a communication modem/circuit/chip designed to implement a wireless communication technology (eg, LTE, NR).
- the transceiver 106 may be coupled to the processor 102 and may transmit and/or receive wireless signals via one or more antennas 108 .
- the transceiver 106 may include a transmitter and/or a receiver.
- the transceiver 106 may be used interchangeably with a radio frequency (RF) unit.
- a wireless device may mean a communication modem/circuit/chip.
- the second wireless device 200 includes one or more processors 202, one or more memories 204, and may further include one or more transceivers 206 and/or one or more antennas 208.
- Processor 202 controls memory 204 and/or transceiver 206 and may be configured to implement the descriptions, functions, procedures, suggestions, methods, and/or flowcharts of operations disclosed herein.
- the processor 202 may process information in the memory 204 to generate third information/signal, and transmit a radio signal including the third information/signal through the transceiver 206.
- the processor 202 may receive a radio signal including the fourth information/signal through the transceiver 206 and store information obtained from signal processing of the fourth information/signal in the memory 204 .
- the memory 204 may be connected to the processor 202 and may store various information related to the operation of the processor 202 .
- memory 204 may perform some or all of the processes controlled by processor 202, or instructions for performing the descriptions, functions, procedures, suggestions, methods, and/or flowcharts of operations disclosed herein. It may store software codes including them.
- the processor 202 and memory 204 may be part of a communication modem/circuit/chip designed to implement a wireless communication technology (eg, LTE, NR).
- the transceiver 206 may be coupled to the processor 202 and may transmit and/or receive wireless signals via one or more antennas 208 .
- the transceiver 206 may include a transmitter and/or a receiver.
- the transceiver 206 may be used interchangeably with an RF unit.
- a wireless device may mean a communication modem/circuit/chip.
- one or more protocol layers may be implemented by one or more processors 102, 202.
- one or more processors 102, 202 may implement one or more layers (eg, functional layers such as PHY, MAC, RLC, PDCP, RRC, SDAP).
- One or more processors 102, 202 may generate one or more Protocol Data Units (PDUs) and/or one or more Service Data Units (SDUs) in accordance with the descriptions, functions, procedures, proposals, methods and/or operational flow charts disclosed herein.
- PDUs Protocol Data Units
- SDUs Service Data Units
- processors 102, 202 may generate messages, control information, data or information according to the descriptions, functions, procedures, proposals, methods and/or operational flow diagrams disclosed herein.
- One or more processors 102, 202 generate PDUs, SDUs, messages, control information, data or signals (e.g., baseband signals) containing information according to the functions, procedures, proposals and/or methods disclosed herein , can be provided to one or more transceivers 106, 206.
- One or more processors 102, 202 may receive signals (eg, baseband signals) from one or more transceivers 106, 206, and descriptions, functions, procedures, proposals, methods, and/or flowcharts of operations disclosed herein PDUs, SDUs, messages, control information, data or information can be obtained according to these.
- signals eg, baseband signals
- One or more processors 102, 202 may be referred to as a controller, microcontroller, microprocessor or microcomputer.
- One or more processors 102, 202 may be implemented by hardware, firmware, software, or a combination thereof.
- ASICs Application Specific Integrated Circuits
- DSPs Digital Signal Processors
- DSPDs Digital Signal Processing Devices
- PLDs Programmable Logic Devices
- FPGAs Field Programmable Gate Arrays
- firmware or software may be implemented using firmware or software, and the firmware or software may be implemented to include modules, procedures, functions, and the like.
- Firmware or software configured to perform the descriptions, functions, procedures, suggestions, methods and/or operational flow diagrams disclosed herein may be included in one or more processors 102, 202 or stored in one or more memories 104, 204 and It can be driven by the above processors 102 and 202.
- the descriptions, functions, procedures, suggestions, methods and/or operational flow charts disclosed in this document may be implemented using firmware or software in the form of codes, instructions and/or sets of instructions.
- One or more memories 104, 204 may be coupled with one or more processors 102, 202 and may store various types of data, signals, messages, information, programs, codes, instructions and/or instructions.
- One or more memories 104, 204 may be comprised of ROM, RAM, EPROM, flash memory, hard drives, registers, cache memory, computer readable storage media, and/or combinations thereof.
- One or more memories 104, 204 may be located internally and/or external to one or more processors 102, 202. Additionally, one or more memories 104, 204 may be coupled to one or more processors 102, 202 through various technologies, such as wired or wireless connections.
- One or more transceivers 106, 206 may transmit user data, control information, radio signals/channels, etc., as referred to in the methods and/or operational flow charts herein, to one or more other devices.
- One or more transceivers 106, 206 may receive user data, control information, radio signals/channels, etc. referred to in descriptions, functions, procedures, proposals, methods and/or operational flow charts, etc. disclosed herein from one or more other devices. there is.
- one or more transceivers 106 and 206 may be connected to one or more processors 102 and 202 and transmit and receive wireless signals.
- one or more processors 102, 202 may control one or more transceivers 106, 206 to transmit user data, control information, or radio signals to one or more other devices. Additionally, one or more processors 102, 202 may control one or more transceivers 106, 206 to receive user data, control information, or radio signals from one or more other devices. In addition, one or more transceivers 106, 206 may be coupled with one or more antennas 108, 208, and one or more transceivers 106, 206 via one or more antennas 108, 208, as described herein, function. , procedures, proposals, methods and / or operation flowcharts, etc. can be set to transmit and receive user data, control information, radio signals / channels, etc.
- one or more antennas may be a plurality of physical antennas or a plurality of logical antennas (eg, antenna ports).
- One or more transceivers (106, 206) convert the received radio signals/channels from RF band signals in order to process the received user data, control information, radio signals/channels, etc. using one or more processors (102, 202). It can be converted into a baseband signal.
- One or more transceivers 106 and 206 may convert user data, control information, and radio signals/channels processed by one or more processors 102 and 202 from baseband signals to RF band signals.
- one or more of the transceivers 106, 206 may include (analog) oscillators and/or filters.
- a wireless device may be implemented in various forms according to use-case/service (see FIG. 7).
- wireless devices 100 and 200 correspond to the wireless devices 100 and 200 of FIG. 8, and include various elements, components, units/units, and/or modules. ) can be configured.
- the wireless devices 100 and 200 may include a communication unit 110 , a control unit 120 , a memory unit 130 and an additional element 140 .
- the communication unit may include communication circuitry 112 and transceiver(s) 114 .
- communication circuitry 112 may include one or more processors 102, 202 of FIG. 8 and/or one or more memories 104, 204.
- transceiver(s) 114 may include one or more transceivers 106, 206 of FIG. 8 and/or one or more antennas 108, 208.
- the control unit 120 is electrically connected to the communication unit 110, the memory unit 130, and the additional element 140 and controls overall operations of the wireless device. For example, the control unit 120 may control electrical/mechanical operations of the wireless device based on programs/codes/commands/information stored in the memory unit 130. In addition, the control unit 120 transmits the information stored in the memory unit 130 to the outside (eg, another communication device) through the communication unit 110 through a wireless/wired interface, or transmits the information stored in the memory unit 130 to the outside (eg, another communication device) through the communication unit 110. Information received through a wireless/wired interface from other communication devices) may be stored in the memory unit 130 .
- the additional element 140 may be configured in various ways according to the type of wireless device.
- the additional element 140 may include at least one of a power unit/battery, an I/O unit, a driving unit, and a computing unit.
- wireless devices include robots (Fig. 7, 100a), vehicles (Fig. 7, 100b-1, 100b-2), XR devices (Fig. 7, 100c), mobile devices (Fig. 7, 100d), home appliances. (FIG. 7, 100e), IoT device (FIG. 7, 100f), digital broadcasting terminal, hologram device, public safety device, MTC device, medical device, fintech device (or financial device), security device, climate/environmental device, It may be implemented in the form of an AI server/device (Fig. 7, 400), a base station (Fig. 7, 200), a network node, or the like. Wireless devices can be mobile or used in a fixed location depending on the use-case/service.
- various elements, components, units/units, and/or modules in the wireless devices 100 and 200 may all be interconnected through a wired interface, or at least some of them may be wirelessly connected through the communication unit 110.
- the control unit 120 and the communication unit 110 are connected by wire, and the control unit 120 and the first units (eg, 130 and 140) are connected through the communication unit 110.
- the control unit 120 and the first units eg, 130 and 140
- each element, component, unit/unit, and/or module within the wireless device 100, 200 may further include one or more elements.
- the control unit 120 may be composed of one or more processor sets.
- the controller 120 may include a set of a communication control processor, an application processor, an electronic control unit (ECU), a graphic processing processor, a memory control processor, and the like.
- the memory unit 130 may include random access memory (RAM), dynamic RAM (DRAM), read only memory (ROM), flash memory, volatile memory, and non-volatile memory. volatile memory) and/or a combination thereof.
- Vehicles or autonomous vehicles may be implemented as mobile robots, vehicles, trains, manned/unmanned aerial vehicles (AVs), ships, and the like.
- AVs manned/unmanned aerial vehicles
- a vehicle or autonomous vehicle 100 includes an antenna unit 108, a communication unit 110, a control unit 120, a driving unit 140a, a power supply unit 140b, a sensor unit 140c, and an autonomous driving unit.
- a portion 140d may be included.
- the antenna unit 108 may be configured as part of the communication unit 110 .
- Blocks 110/130/140a to 140d respectively correspond to blocks 110/130/140 of FIG. 9 .
- the communication unit 110 may transmit/receive signals (eg, data, control signals, etc.) with external devices such as other vehicles, base stations (e.g. base stations, roadside base stations, etc.), servers, and the like.
- the controller 120 may perform various operations by controlling elements of the vehicle or autonomous vehicle 100 .
- the controller 120 may include an Electronic Control Unit (ECU).
- the driving unit 140a may drive the vehicle or autonomous vehicle 100 on the ground.
- the driving unit 140a may include an engine, a motor, a power train, a wheel, a brake, a steering device, and the like.
- the power supply unit 140b supplies power to the vehicle or autonomous vehicle 100, and may include a wired/wireless charging circuit, a battery, and the like.
- the sensor unit 140c may obtain vehicle conditions, surrounding environment information, and user information.
- the sensor unit 140c includes an inertial measurement unit (IMU) sensor, a collision sensor, a wheel sensor, a speed sensor, an inclination sensor, a weight detection sensor, a heading sensor, a position module, and a vehicle forward.
- IMU inertial measurement unit
- /Can include a reverse sensor, battery sensor, fuel sensor, tire sensor, steering sensor, temperature sensor, humidity sensor, ultrasonic sensor, illuminance sensor, pedal position sensor, and the like.
- the autonomous driving unit 140d includes a technology for maintaining a driving lane, a technology for automatically adjusting speed such as adaptive cruise control, a technology for automatically driving along a predetermined route, and a technology for automatically setting a route when a destination is set and driving. technology can be implemented.
- the communication unit 110 may receive map data, traffic information data, and the like from an external server.
- the autonomous driving unit 140d may generate an autonomous driving route and a driving plan based on the acquired data.
- the controller 120 may control the driving unit 140a so that the vehicle or autonomous vehicle 100 moves along the autonomous driving path according to the driving plan (eg, speed/direction adjustment).
- the communicator 110 may non-/periodically obtain the latest traffic information data from an external server and obtain surrounding traffic information data from surrounding vehicles.
- the sensor unit 140c may acquire vehicle state and surrounding environment information.
- the autonomous driving unit 140d may update an autonomous driving route and a driving plan based on newly acquired data/information.
- the communication unit 110 may transmit information about a vehicle location, an autonomous driving route, a driving plan, and the like to an external server.
- the external server may predict traffic information data in advance using AI technology based on information collected from the vehicle or self-driving vehicles, and may provide the predicted traffic information data to the vehicle or self-driving vehicles.
- the present invention can be applied to various wireless communication systems.
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Abstract
Description
If a UE indicates in UE-NR-Capability a carrier aggregation capability larger than 4 serving cells and the UE is not provided monitoringCapabilityConfig for any downlink cell or if the UE is provided monitoringCapabilityConfig = r15monitoringcapability for all downlink cells where the UE monitors PDCCH, the UE includes in UE-NR-Capability an indication for a maximum number of PDCCH candidates and for a maximum number of non-overlapped CCEs the UE can monitor per slot when the UE is configured for carrier aggregation operation over more than 4 cells. When a UE is not configured for NR-DC operation, the UE determines a capability to monitor a maximum number of PDCCH candidates and a maximum number of non-overlapped CCEs per slot that corresponds to downlink cells, where - is +R· if the UE does not provide pdcch-BlindDetectionCA where + is the number of configured downlink serving cells - otherwise, is the value of pdcch-BlindDetectionCA |
If a UE - is configured with + downlink cells for which the UE is not provided monitoringCapabilityConfig, or is provided monitoringCapabilityConfig-r16 = r15monitoringcapability but not provided coresetPoolIndex, - with associated PDCCH candidates monitored in the active DL BWPs of the scheduling cell(s) using SCS configuration μ, where , and - a DL BWP of an activated cell is the active DL BWP of the activated cell, and a DL BWP of a deactivated cell is the DL BWP with index provided by firstActiveDownlinkBWP-Id for the deactivated cell, the UE is not required to monitor more than PDCCH candidates or more than non-overlapped CCEs per slot on the active DL BWP(s) of scheduling cell(s) from the downlink cells. is replaced by if a UE is configured with downlink cells for which the UE is provided both monitoringCapabilityConfig-r16 = r15monitoringcapability and monitoringCapabilityConfig-r16 = r16monitoringcapability. |
Supported combinations of (X,Y) A UE capable of multi-slot monitoring mandatorily supports For SCS 480 kHz: (X,Y) = (4,1) For SCS 960 kHz: (X,Y) = (8,1) A UE capable of multi-slot monitoring optionally supports For SCS 480 kHz: (X,Y) = (4,2), [(2,1)] For SCS 960 kHz: (X,Y) = (8,4), (4,2), (4,1) |
Claims (20)
- 무선 통신 시스템에서 단말이 제어 신호를 모니터링하는 방법에 있어서,서빙 셀에서 PDCCH (physical downlink control channel)를 모니터링하기 위한 X 및 Y의 조합을 설정하되, 상기 X는 슬롯-그룹에 포함되는 연속된 슬롯들의 수이고, 상기 슬롯-그룹은 중첩되지 않고 연속하여 반복되며, 상기 Y는 X 슬롯들 내에서 연속된 슬롯들의 수인, 단계; 및상기 서빙 셀 상에서 상기 X 및 Y의 조합에 기반하여 상기 PDCCH를 모니터링하는 단계; 를 포함하며,상기 서빙 셀에 대한 PDCCH 모니터링 능력과 관련된 정보가 제공되지 않음 및 (ii) 상기 서빙 셀에 480 kHz SCS (subcarrier spacing)가 설정됨에 기반하여, X=4 및 Y=1인 조합이 사용되고,상기 서빙 셀에 대한 PDCCH 모니터링 능력과 관련된 정보가 제공되지 않음 및 (ii) 상기 서빙 셀에 960 kHz SCS가 설정됨에 기반하여, X=8 및 Y=1인 조합이 사용되는,신호 모니터링 방법.
- 제1항에 있어서,상기 서빙 셀에 대한 PDCCH 모니터링 능력과 관련된 정보가 제공되지 않음 및 (ii) 상기 서빙 셀에 임계값 이상의 특정 SCS가 설정됨에 기반하여, X는 상기 특정 SCS에서 사용될 수 있는 최대값으로, Y는 상기 특정 SCS에서 사용될 수 있는 최소값으로 구성된 조합이 사용되는,신호 모니터링 방법.
- 제1항에 있어서,상기 PDCCH 모니터링 능력과 관련된 정보가 복수의 X 및 Y의 조합들과 관련하여 제공됨 및 (ii) 탐색 공간 세트(search space set)의 설정이 상기 복수의 X 및 Y의 조합들 중 적어도 두 개의 조합과 관련됨에 기반하여, 상기 적어도 두 개의 조합들 중, 가장 큰 M 및 C와 관련된 특정 조합의 X 및 Y에 의해 상기 PDCCH가 모니터링되며,상기 M은 (i) 서빙 셀과 (ii) X 및 Y의 조합 당 X 슬롯들의 그룹 내에서 모니터링되는 PDCCH 후보들의 최대 수 (a maximum number of monitored PDCCH candidates in a group of X slots per combination of X and Y per serving cell)이며,상기 C는 (i) 서빙 셀과 (ii) X 및 Y의 조합 당 X 슬롯들의 그룹 내에서 중첩되지 않는 CCE (control channel element)들의 최대 수 (a maximum number of non-overlapped CCEs in a group of X slots per combination of X and Y per serving cell)인,신호 모니터링 방법.
- 제1항에 있어서,상기 서빙 셀을 포함하여 PDCCH 모니터링을 위한 복수의 서빙 셀들이 설정되고, 상기 복수의 서빙 셀들은 상기 서빙 셀과 동일한 상기 X 슬롯들을 포함하며,상기 복수의 서빙 셀들의 수가 상기 단말이 PDCCH를 모니터링할 수 있는 셀들의 최대 개수를 초과함에 기반하여, 상기 복수의 서빙 셀들 내의 상기 X 슬롯들 내에서 모니터링될 PDCCH 후보들의 수가 재설정되는,신호 모니터링 방법.
- 제1항에 있어서,상기 서빙 셀을 포함하여 PDCCH 모니터링을 위한 복수의 서빙 셀들이 설정되고, 상기 복수의 서빙 셀들은 상기 서빙 셀과 동일한 상기 X 슬롯들을 포함하며,상기 복수의 서빙 셀들의 수가 상기 단말이 PDCCH를 모니터링할 수 있는 셀들의 최대 개수를 초과함에 기반하여, 상기 복수의 서빙 셀들 내의 상기 X 슬롯들 내에서 모니터링될 중첩되지 않는 CCE (non-overlapped control channel element)의 수가 재설정되는,신호 모니터링 방법.
- 무선 통신 시스템에서 제어 신호를 모니터링하기 위한 단말에 있어서,적어도 하나의 트랜시버;적어도 하나의 프로세서; 및상기 적어도 하나의 프로세서에 동작 가능하도록 연결되고, 실행될 경우 상기 적어도 하나의 프로세서가 특정 동작을 수행하도록 하는 명령들(instructions)을 저장하는 적어도 하나의 메모리; 를 포함하고,상기 특정 동작은,서빙 셀에서 PDCCH (physical downlink control channel)를 모니터링하기 위한 X 및 Y의 조합을 설정하되, 상기 X는 슬롯-그룹에 포함되는 연속된 슬롯들의 수이고, 상기 슬롯-그룹은 중첩되지 않고 연속하여 반복되며, 상기 Y는 X 슬롯들 내에서 연속된 슬롯들의 수인, 단계; 및상기 서빙 셀 상에서 상기 X 및 Y의 조합에 기반하여 상기 PDCCH를 모니터링하는 단계; 를 포함하며,상기 서빙 셀에 대한 PDCCH 모니터링 능력과 관련된 정보가 제공되지 않음 및 (ii) 상기 서빙 셀에 480 kHz SCS (subcarrier spacing)가 설정됨에 기반하여, X=4 및 Y=1인 조합이 사용되고,상기 서빙 셀에 대한 PDCCH 모니터링 능력과 관련된 정보가 제공되지 않음 및 (ii) 상기 서빙 셀에 960 kHz SCS가 설정됨에 기반하여, X=8 및 Y=1인 조합이 사용되는,단말.
- 제6항에 있어서,상기 서빙 셀에 대한 PDCCH 모니터링 능력과 관련된 정보가 제공되지 않음 및 (ii) 상기 서빙 셀에 임계값 이상의 특정 SCS가 설정됨에 기반하여, X는 상기 특정 SCS에서 사용될 수 있는 최대값으로, Y는 상기 특정 SCS에서 사용될 수 있는 최소값으로 구성된 조합이 사용되는,단말.
- 제6항에 있어서,상기 PDCCH 모니터링 능력과 관련된 정보가 복수의 X 및 Y의 조합들과 관련하여 제공됨 및 (ii) 탐색 공간 세트(search space set)의 설정이 상기 복수의 X 및 Y의 조합들 중 적어도 두 개의 조합과 관련됨에 기반하여, 상기 적어도 두 개의 조합들 중, 가장 큰 M 및 C와 관련된 특정 조합의 X 및 Y에 의해 상기 PDCCH가 모니터링되며,상기 M은 (i) 서빙 셀과 (ii) X 및 Y의 조합 당 X 슬롯들의 그룹 내에서 모니터링되는 PDCCH 후보들의 최대 수 (a maximum number of monitored PDCCH candidates in a group of X slots per combination of X and Y per serving cell)이며,상기 C는 (i) 서빙 셀과 (ii) X 및 Y의 조합 당 X 슬롯들의 그룹 내에서 중첩되지 않는 CCE (control channel element)들의 최대 수 (a maximum number of non-overlapped CCEs in a group of X slots per combination of X and Y per serving cell)인,단말.
- 제6항에 있어서,상기 서빙 셀을 포함하여 PDCCH 모니터링을 위한 복수의 서빙 셀들이 설정되고, 상기 복수의 서빙 셀들은 상기 서빙 셀과 동일한 상기 X 슬롯들을 포함하며,상기 복수의 서빙 셀들의 수가 상기 단말이 PDCCH를 모니터링할 수 있는 셀들의 최대 개수를 초과함에 기반하여, 상기 복수의 서빙 셀들 내의 상기 X 슬롯들 내에서 모니터링될 PDCCH 후보들의 수가 재설정되는,단말.
- 제6항에 있어서,상기 서빙 셀을 포함하여 PDCCH 모니터링을 위한 복수의 서빙 셀들이 설정되고, 상기 복수의 서빙 셀들은 상기 서빙 셀과 동일한 상기 X 슬롯들을 포함하며,상기 복수의 서빙 셀들의 수가 상기 단말이 PDCCH를 모니터링할 수 있는 셀들의 최대 개수를 초과함에 기반하여, 상기 복수의 서빙 셀들 내의 상기 X 슬롯들 내에서 모니터링될 중첩되지 않는 CCE (non-overlapped control channel element)의 수가 재설정되는,단말.
- 단말을 위한 장치에 있어서,적어도 하나의 프로세서; 및상기 적어도 하나의 프로세서와 동작 가능하게 연결되고, 실행될 때, 상기 적어도 하나의 프로세서가 동작을 수행하도록 하는 적어도 하나의 컴퓨터 메모리를 포함하며, 상기 동작은:서빙 셀에서 PDCCH (physical downlink control channel)를 모니터링하기 위한 X 및 Y의 조합을 설정하되, 상기 X는 슬롯-그룹에 포함되는 연속된 슬롯들의 수이고, 상기 슬롯-그룹은 중첩되지 않고 연속하여 반복되며, 상기 Y는 X 슬롯들 내에서 연속된 슬롯들의 수인, 단계; 및상기 서빙 셀 상에서 상기 X 및 Y의 조합에 기반하여 상기 PDCCH를 모니터링하는 단계; 를 포함하며,상기 서빙 셀에 대한 PDCCH 모니터링 능력과 관련된 정보가 제공되지 않음 및 (ii) 상기 서빙 셀에 480 kHz SCS (subcarrier spacing)가 설정됨에 기반하여, X=4 및 Y=1인 조합이 사용되고,상기 서빙 셀에 대한 PDCCH 모니터링 능력과 관련된 정보가 제공되지 않음 및 (ii) 상기 서빙 셀에 960 kHz SCS가 설정됨에 기반하여, X=8 및 Y=1인 조합이 사용되는,장치.
- 제11항에 있어서,상기 서빙 셀에 대한 PDCCH 모니터링 능력과 관련된 정보가 제공되지 않음 및 (ii) 상기 서빙 셀에 임계값 이상의 특정 SCS가 설정됨에 기반하여, X는 상기 특정 SCS에서 사용될 수 있는 최대값으로, Y는 상기 특정 SCS에서 사용될 수 있는 최소값으로 구성된 조합이 사용되는,장치.
- 제11항에 있어서,상기 PDCCH 모니터링 능력과 관련된 정보가 복수의 X 및 Y의 조합들과 관련하여 제공됨 및 (ii) 탐색 공간 세트(search space set)의 설정이 상기 복수의 X 및 Y의 조합들 중 적어도 두 개의 조합과 관련됨에 기반하여, 상기 적어도 두 개의 조합들 중, 가장 큰 M 및 C와 관련된 특정 조합의 X 및 Y에 의해 상기 PDCCH가 모니터링되며,상기 M은 (i) 서빙 셀과 (ii) X 및 Y의 조합 당 X 슬롯들의 그룹 내에서 모니터링되는 PDCCH 후보들의 최대 수 (a maximum number of monitored PDCCH candidates in a group of X slots per combination of X and Y per serving cell)이며,상기 C는 (i) 서빙 셀과 (ii) X 및 Y의 조합 당 X 슬롯들의 그룹 내에서 중첩되지 않는 CCE (control channel element)들의 최대 수 (a maximum number of non-overlapped CCEs in a group of X slots per combination of X and Y per serving cell)인,장치.
- 제11항에 있어서,상기 서빙 셀을 포함하여 PDCCH 모니터링을 위한 복수의 서빙 셀들이 설정되고, 상기 복수의 서빙 셀들은 상기 서빙 셀과 동일한 상기 X 슬롯들을 포함하며,상기 복수의 서빙 셀들의 수가 상기 단말이 PDCCH를 모니터링할 수 있는 셀들의 최대 개수를 초과함에 기반하여, 상기 복수의 서빙 셀들 내의 상기 X 슬롯들 내에서 모니터링될 PDCCH 후보들의 수가 재설정되는,장치.
- 제11항에 있어서,상기 서빙 셀을 포함하여 PDCCH 모니터링을 위한 복수의 서빙 셀들이 설정되고, 상기 복수의 서빙 셀들은 상기 서빙 셀과 동일한 상기 X 슬롯들을 포함하며,상기 복수의 서빙 셀들의 수가 상기 단말이 PDCCH를 모니터링할 수 있는 셀들의 최대 개수를 초과함에 기반하여, 상기 복수의 서빙 셀들 내의 상기 X 슬롯들 내에서 모니터링될 중첩되지 않는 CCE (non-overlapped control channel element)의 수가 재설정되는,장치.
- 적어도 하나의 프로세서가 동작을 수행하도록 하는 적어도 하나의 컴퓨터 프로그램을 포함하는 컴퓨터 판독가능한 비휘발성 저장 매체로서, 상기 동작은:서빙 셀에서 PDCCH (physical downlink control channel)를 모니터링하기 위한 X 및 Y의 조합을 설정하되, 상기 X는 슬롯-그룹에 포함되는 연속된 슬롯들의 수이고, 상기 슬롯-그룹은 중첩되지 않고 연속하여 반복되며, 상기 Y는 X 슬롯들 내에서 연속된 슬롯들의 수인, 단계; 및상기 서빙 셀 상에서 상기 X 및 Y의 조합에 기반하여 상기 PDCCH를 모니터링하는 단계; 를 포함하며,상기 서빙 셀에 대한 PDCCH 모니터링 능력과 관련된 정보가 제공되지 않음 및 (ii) 상기 서빙 셀에 480 kHz SCS (subcarrier spacing)가 설정됨에 기반하여, X=4 및 Y=1인 조합이 사용되고,상기 서빙 셀에 대한 PDCCH 모니터링 능력과 관련된 정보가 제공되지 않음 및 (ii) 상기 서빙 셀에 960 kHz SCS가 설정됨에 기반하여, X=8 및 Y=1인 조합이 사용되는,저장 매체.
- 제16항에 있어서,상기 서빙 셀에 대한 PDCCH 모니터링 능력과 관련된 정보가 제공되지 않음 및 (ii) 상기 서빙 셀에 임계값 이상의 특정 SCS가 설정됨에 기반하여, X는 상기 특정 SCS에서 사용될 수 있는 최대값으로, Y는 상기 특정 SCS에서 사용될 수 있는 최소값으로 구성된 조합이 사용되는,저장 매체.
- 제16항에 있어서,상기 PDCCH 모니터링 능력과 관련된 정보가 복수의 X 및 Y의 조합들과 관련하여 제공됨 및 (ii) 탐색 공간 세트(search space set)의 설정이 상기 복수의 X 및 Y의 조합들 중 적어도 두 개의 조합과 관련됨에 기반하여, 상기 적어도 두 개의 조합들 중, 가장 큰 M 및 C와 관련된 특정 조합의 X 및 Y에 의해 상기 PDCCH가 모니터링되며,상기 M은 (i) 서빙 셀과 (ii) X 및 Y의 조합 당 X 슬롯들의 그룹 내에서 모니터링되는 PDCCH 후보들의 최대 수 (a maximum number of monitored PDCCH candidates in a group of X slots per combination of X and Y per serving cell)이며,상기 C는 (i) 서빙 셀과 (ii) X 및 Y의 조합 당 X 슬롯들의 그룹 내에서 중첩되지 않는 CCE (control channel element)들의 최대 수 (a maximum number of non-overlapped CCEs in a group of X slots per combination of X and Y per serving cell)인,저장 매체.
- 제16항에 있어서,상기 서빙 셀을 포함하여 PDCCH 모니터링을 위한 복수의 서빙 셀들이 설정되고, 상기 복수의 서빙 셀들은 상기 서빙 셀과 동일한 상기 X 슬롯들을 포함하며,상기 복수의 서빙 셀들의 수가 상기 단말이 PDCCH를 모니터링할 수 있는 셀들의 최대 개수를 초과함에 기반하여, 상기 복수의 서빙 셀들 내의 상기 X 슬롯들 내에서 모니터링될 PDCCH 후보들의 수가 재설정되는,저장 매체.
- 제16항에 있어서,상기 서빙 셀을 포함하여 PDCCH 모니터링을 위한 복수의 서빙 셀들이 설정되고, 상기 복수의 서빙 셀들은 상기 서빙 셀과 동일한 상기 X 슬롯들을 포함하며,상기 복수의 서빙 셀들의 수가 상기 단말이 PDCCH를 모니터링할 수 있는 셀들의 최대 개수를 초과함에 기반하여, 상기 복수의 서빙 셀들 내의 상기 X 슬롯들 내에서 모니터링될 중첩되지 않는 CCE (non-overlapped control channel element)의 수가 재설정되는,저장 매체.
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