Method and device for configuring window-based reference signal occasion

Abstract

Provided are a method by which a first device performs wireless communication and a device supporting same. The method may comprise the steps of: acquiring information related to a first reference signal occasion; detecting at least one event within a first window related to the first reference signal occasion; and on the basis of the detection of the at least one event within the first window, determining that a reference signal is received on the first reference signal occasion.

Description

Method and device for setting up Windows-based reference signal occupancy

[0001] The present disclosure relates to a wireless communication system.

[0002] 5G NR is a successor technology to LTE (long term evolution) and is a new clean-slate type mobile communication system with characteristics such as high performance, low latency, and high availability. 5G NR can utilize all available spectrum resources, ranging from low frequency bands below 1 GHz to mid-frequency bands from 1 GHz to 10 GHz, and high frequency (millimeter wave) bands above 24 GHz.

[0003] The 6G (wireless communication) system aims for (i) very high data rates per device, (ii) a very large number of connected devices, (iii) global connectivity, (iv) very low latency, (v) reduced energy consumption of battery-free IoT (internet of things) devices, (vi) ultra-reliable connectivity, and (vii) connected intelligence with machine learning capabilities. The vision of the 6G system can be in four aspects, such as intelligent connectivity, deep connectivity, holographic connectivity, and ubiquitous connectivity, and the 6G system can satisfy requirements such as those shown in Table 1 below. For example, Table 1 can represent an example of the requirements for a 6G system.

[0004] Per device peak data rate 1 Tbps E2E latency 1 ms Maximum spectral efficiency 100 bps / Hz Mobility support up to 1000 km / hr Satellite integration Fully AI Fully Autonomous vehicle Fully XR Fully Haptic communication Fully

[0005] In one embodiment, a method is provided in which a first device performs wireless communication. The method may include: acquiring information related to a first reference signal occasion; detecting at least one event within a first window related to the first reference signal occasion; and determining that a reference signal has been received on the first reference signal occasion based on the detection of the at least one event within the first window.

[0006] In one embodiment, a first device configured to perform wireless communication is provided. The first device may include at least one transceiver; at least one processor; and at least one memory connected to the at least one processor and storing instructions. For example, based on the instructions executed by the at least one processor, the first device may: acquire information related to a first reference signal occasion; perform detection of at least one event within a first window related to the first reference signal occasion; and determine that a reference signal has been received on the first reference signal occasion based on the detection of the at least one event within the first window.

[0007] In one embodiment, a processing device configured to control a first device is provided. The processing device comprises at least one processor; and at least one memory connected to the at least one processor and storing instructions, wherein the instructions, based on execution by the at least one processor, cause the first device to: acquire information related to a first reference signal occasion; perform detection of at least one event within a first window related to the first reference signal occasion; and determine that a reference signal has been received on the first reference signal occasion based on the detection of the at least one event within the first window.

[0008] In one embodiment, a non-transient computer-readable storage medium is provided for recording instructions. When the instructions are executed, the first device may: acquire information related to a first reference signal occasion; perform detection of at least one event within a first window related to the first reference signal occasion; and determine that a reference signal has been received on the first reference signal occasion based on the detection of the at least one event within the first window.

[0009] FIG. 1 illustrates a communication procedure between devices according to one embodiment of the present disclosure.

[0010] FIG. 2 shows a radio protocol architecture according to one embodiment of the present disclosure.

[0011] Figure 3 illustrates a REG structure.

[0012] Figure 4 illustrates a non-interleaved CCE-REG mapping type.

[0013] Figure 5 illustrates an interleaved CCE-REG mapping type.

[0014] Figure 6 shows a communication structure that can be provided in a 6G system.

[0015] Figure 7 shows the operation procedure of a base station supporting NES technology.

[0016] Figure 8 shows on-demand SIB1 transmission.

[0017] Figure 9 shows an example illustrating the extent to which the power consumption of a terminal is affected according to the period of an always-on signal.

[0018] FIG. 10 illustrates a method for a terminal to assume / determine Cond-RS reception on a specific RS occupancy based on an event on a Cond-window, according to one embodiment of the present disclosure.

[0019] FIGS. 11a and 11b illustrate an example of a case in which, according to one embodiment of the present disclosure, a single RS occupation is related to a plurality of Cond-windows, and the assumption of a terminal's Cond-RS is performed on the RS occupation according to an event occurring on each Cond-window.

[0020] FIG. 12 illustrates an example of a case in which, according to one embodiment of the present disclosure, a Cond-window is related to a plurality of RS occupations, and the assumption of the terminal's Cond-RS is performed on each RS occupation according to an event occurring on one Cond-window.

[0021] FIG. 13 illustrates an example in which a terminal performs an operation related to Cond-RS according to one embodiment of the present disclosure.

[0022] FIG. 14 illustrates an example of a base station performing an operation related to Cond-RS according to one embodiment of the present disclosure.

[0023] FIG. 15 illustrates a method in which a first device performs wireless communication according to one embodiment of the present disclosure.

[0024] FIG. 16 illustrates a method in which a second device performs wireless communication according to one embodiment of the present disclosure.

[0025] FIG. 17 shows an example of an encoding structure according to one embodiment of the present disclosure.

[0026] FIG. 18 shows an example of a CCE-set being configured according to one embodiment of the present disclosure.

[0027] FIG. 19 shows an example of a CCE-set setting according to one embodiment of the present disclosure.

[0028] FIG. 20 illustrates an example of a method for configuring an input bit sequence according to one embodiment of the present disclosure.

[0029] FIG. 21 illustrates an example of a process in which encoding based on the configuration of a CCE-set and coded bit mapping based on the configuration of a CCE-set are performed according to one embodiment of the present disclosure.

[0030] FIG. 22 illustrates an example in which a terminal performs an operation related to a CCE-set according to one embodiment of the present disclosure.

[0031] FIG. 23 illustrates an example in which a base station performs an operation related to a CCE-set according to one embodiment of the present disclosure.

[0032] FIG. 24 shows a communication system (1) according to one embodiment of the present disclosure.

[0033] FIG. 25 shows a wireless device according to one embodiment of the present disclosure.

[0034] FIG. 26 shows a signal processing circuit for a transmission signal according to one embodiment of the present disclosure.

[0035] FIG. 27 shows a wireless device according to one embodiment of the present disclosure.

[0036] FIG. 28 shows a portable device according to one embodiment of the present disclosure.

[0037] In the present disclosure, "A or B" may mean "only A," "only B," or "both A and B." Alternatively, in the present disclosure, "A or B" may be interpreted as "A and / or B." For example, in the present disclosure, "A, B or C" may mean "only A," "only B," "only C," or "any combination of A, B and C."

[0038] A slash ( / ) or a comma used in the present disclosure may mean "and / or." For example, "A / B" may mean "A and / or B." Accordingly, "A / B" may mean "only A," "only B," or "both A and B." For example, "A, B, C" may mean "A, B or C."

[0039] In the present disclosure, "at least one of A and B" may mean "only A," "only B," or "both A and B." Additionally, in the present disclosure, the expressions "at least one of A or B" or "at least one of A and / or B" may be interpreted as synonymous with "at least one of A and B."

[0040] Additionally, in the present disclosure, "at least one of A, B and C" may mean "only A," "only B," "only C," or "any combination of A, B and C." Additionally, "at least one of A, B or C" or "at least one of A, B and / or C" may mean "at least one of A, B and C."

[0041] Additionally, parentheses used in the present disclosure may mean "for example." Specifically, when indicated as "control information (PDCCH)," "PDCCH" may be proposed as an example of "control information." In other words, the "control information" of the present disclosure is not limited to "PDCCH," and "PDCCH" may be proposed as an example of "control information." Furthermore, even when indicated as "control information (i.e., PDCCH)," "PDCCH" may be proposed as an example of "control information."

[0042] In the following explanation, 'when, if, in case of' can be replaced with 'based on'.

[0043] Technical features described individually within one drawing in this disclosure may be implemented individually or simultaneously.

[0044] In the present disclosure, a higher layer parameter may be a parameter that is set for the terminal, pre-set, or pre-defined. For example, a base station or a network may transmit the higher layer parameter to the terminal. For example, the higher layer parameter may be transmitted via radio resource control (RRC) signaling or medium access control (MAC) signaling.

[0045] In the present disclosure, "configured or defined" may be interpreted as being configured or pre-configured to a device through pre-defined signaling (e.g., SIB, MAC, RRC) from a base station or network. In the present disclosure, "configured or defined" may be interpreted as being pre-configured to a device. In the present disclosure, "configured or defined" may be interpreted as being configured or pre-configured to a device through pre-defined signaling (e.g., MAC, RRC, SCI (sidelink control information), device-to-device signaled control information, etc.) from another device. In the present disclosure, "configured or defined" may be interpreted as being pre-configured to a device.

[0046] In the present disclosure, user equipment (UE) may refer to a device, a portable device, a wireless device, etc. In the present disclosure, a base station (BS) may refer to a radio access network (RAN) node, a non-terrestrial network (NTN) cell / node, a transmission reception point (TRP), a network, an integrated access and backhaul (IAB) node, a device, a portable device, a wireless device, etc.

[0047] The technology proposed in this disclosure can be used in various wireless communication systems such as CDMA (code division multiple access), FDMA (frequency division multiple access), TDMA (time division multiple access), OFDMA (orthogonal frequency division multiple access), and SC-FDMA (single carrier frequency division multiple access). CDMA can be implemented with wireless technologies such as UTRA (universal terrestrial radio access) or CDMA2000. TDMA can be implemented with wireless technologies such as GSM (global system for mobile communications) / GPRS (general packet radio service) / EDGE (enhanced data rates for GSM evolution). OFDMA can be implemented with wireless technologies such as IEEE (institute of electrical and electronics engineers) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802-20, E-UTRA (evolved UTRA), LTE (long term evolution), and 5G NR.

[0048] The technology proposed in this disclosure can be implemented as 6G wireless technology and can be applied to various 6G systems. For example, 6G systems may have key factors such as eMBB (enhanced mobile broadband), URLLC (ultra-reliable low latency communications), mMTC (massive machine-type communication), AI (artificial intelligence) integrated communication, tactile internet, high throughput, high network capacity, high energy efficiency, low backhaul and access network congestion, and enhanced data security.

[0049] FIG. 1 illustrates a communication procedure between devices according to one embodiment of the present disclosure. The embodiment of FIG. 1 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, suggestions, methods, and / or operations of the embodiments may be omitted.

[0050] Referring to FIG. 1, in step S101, the first device (100) and the second device (200) can perform synchronization. For example, the first device (100) may be a terminal and / or at least one of the devices proposed in the present disclosure. For example, the second device (200) may be a base station, a network, a RAN node, an NTN node / cell, a TRP, a terminal and / or at least one of the devices proposed in the present disclosure. For example, the first device (100) may perform an initial cell search operation. For example, the first device (100) may detect at least one synchronization signal transmitted according to a rule predefined by the second device (200). Here, for example, the synchronization signal may include a plurality of synchronization signals (e.g., a primary synchronization signal, a secondary synchronization signal, etc.) classified according to structure or use. Through this, the first device (100) can identify the boundaries of the frame, subframe, time unit, slot, and / or symbol of the second device (200), and the first device (100) can obtain information about the second device (200) (e.g., cell identifier).

[0051] In step S103, the first device (100) can obtain system information transmitted by the second device (200). For example, the system information may include information related to the attributes, characteristics, and / or capabilities of the second device (200) that are necessary to connect to the second device (200) and use the service. For example, the system information may be classified according to content (e.g., whether it is essential for connection), transmission structure (e.g., the channel used, whether it is provided on-demand), etc. For example, the system information may be classified into a master information block (MIB) and a system information block (SIB). For example, if necessary, the first device (100) may transmit a signal requesting the system information prior to receiving the system information. For example, the request and provision of the system information may be performed after a random access procedure described later.

[0052] In step S105, the first device (100) and the second device (200) can perform a random access procedure. For example, the first device (100) can transmit and / or receive at least one message for the random access procedure (e.g., random access preamble, random access response message, etc.) based on information related to the random access channel of the second device (200) obtained through system information (e.g., channel location, channel structure, structure of a supported preamble, etc.). For example, the first device (100) may transmit a preamble (e.g., Msg1) through a random access channel, and the first device (100) may receive a random access response message (e.g., Msg2). The first device (100) may transmit a message (e.g., Msg3) containing information (e.g., identification information) related to the first device (100) to the second device (200) using scheduling information included in the random access response message, and the first device (100) may receive a message (e.g., Msg4) for contention resolution and / or connection establishment. For example, Msg1 and Msg3 may be transmitted and received as a single message (e.g., MsgA), and / or Msg2 and Msg4 may be transmitted and received as a single message (e.g., MsgB).

[0053] In step S107, the first device (100) and the second device (200) can perform signaling of control information. Here, for example, the control information may be defined in various layers, such as a layer that controls the connection (e.g., a radio resource control (RRC) layer), a layer that handles mapping between a logical channel and a transmission channel (e.g., a media access control (MAC) layer), and a layer that handles a physical channel (e.g., a physical (PHY) layer). For example, the first device (100) and the second device (200) may perform at least one of signaling to establish a connection, signaling to determine settings related to communication, and / or signaling to indicate allocated resources. For example, the control information may be signaled / transmitted through a control channel. For example, the control information and / or the control channel may be used to schedule at least one of data, a data channel (e.g., a shared channel), and / or control information on the data channel.

[0054] In step S109, the first device (100) and the second device (200) may transmit and / or receive data. For example, the first device (100) and the second device (200) may process data based on signaling of control information and transmit and / or receive data. For example, when transmitting data, the first device (100) or the second device (200) may perform at least one of channel encoding, rate matching, scrambling, constellation mapping, layer mapping, waveform modulation, antenna mapping, and / or resource mapping on the information bits. For example, when receiving data, the first device (100) or the second device (200) may perform at least one of signal extraction from resources, antenna-specific waveform demodulation, signal placement considering layer mapping, constellation demapping, descrambling, and / or channel decoding.

[0055] For example, the layers of the radio interface protocol between the first device (100) and the second device (200) can be classified into L1 (layer 1), L2 (layer 2), L3 (layer 3), etc. For example, the physical layer belonging to layer 1 can provide an information transfer service using a physical channel, and the radio resource control (RRC) layer located at layer 3 can perform the role of controlling radio resources between the first device (100) and the second device (200). To this end, for example, the RRC layer can exchange RRC messages between the first device (100) and the second device (200).

[0056] FIG. 2 illustrates a radio protocol architecture according to one embodiment of the present disclosure. The embodiment of FIG. 2 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, proposals, methods, and / or operations of said embodiment may be omitted. For example, FIG. 2(a) may represent a radio protocol stack in the user plane for uplink communication or downlink communication, and FIG. 2(b) may represent a radio protocol stack in the control plane for uplink communication or downlink communication. For example, FIG. 2(c) may represent a radio protocol stack in the user plane for device-to-device communication, and FIG. 2(d) may represent a radio protocol stack in the control plane for device-to-device communication.

[0057] For example, the physical layer can provide information transmission services to upper layers using a physical channel. For example, the physical layer can be connected to the upper layer, the MAC (medium access control) layer, through a transport channel. For example, data can be transmitted between the MAC layer and the physical layer through a transport channel. For example, transport channels can be classified according to how and with what characteristics data is transmitted through a wireless interface. For example, data can be transmitted through a physical channel between different physical layers (e.g., between the physical layers of a first device and a second device). For example, the physical channel can be modulated using the OFDM (orthogonal frequency division multiplexing) method, and time and frequency can be utilized as wireless resources.

[0058] For example, the MAC layer can provide services to the upper layer, the RLC (radio link control) layer, through logical channels. For example, the MAC layer can provide mapping functions from multiple logical channels to multiple transmission channels. For example, the MAC layer can provide logical channel multiplexing functions through mapping from multiple logical channels to a single transmission channel. For example, the MAC sublayer can provide data transmission services over logical channels.

[0059] For example, the RLC layer can perform concatenation, segmentation, and reassembly of RLC service data units (SDUs). For example, to guarantee various quality of service (QoS) required by a radio bearer (RB), the RLC layer can provide three modes of operation: transparent mode (TM), unacknowledged mode (UM), and acknowledged mode (AM). For example, AM RLC can provide error correction through automatic repeat requests (ARQ).

[0060] For example, the RRC (radio resource control) layer may be defined only in the control plane. For example, the RRC layer may be responsible for controlling logical channels, transmission channels, and physical channels in relation to the configuration, reconfiguration, and release of radio bearers. For example, RB may refer to a logical path provided by the first layer (e.g., physical layer) and the second layer (e.g., MAC layer, RLC layer, PDCP (packet data convergence protocol) layer, SDAP (service data adaptation protocol) layer, etc.) for data transfer between a first device and a second device.

[0061] For example, the functions of the PDCP layer in the user plane may include the delivery of user data, header compression, and ciphering. For example, the functions of the PDCP layer in the control plane may include the delivery of control plane data and encryption / integrity protection.

[0062] For example, the establishment of an RB can mean the process of defining the characteristics of the wireless protocol layer and channel to provide specific services, and setting each specific parameter and method of operation. For example, an RB can be divided into two types: an SRB (signaling radio bearer) and a DRB (data radio bearer). For example, an SRB can be used as a channel to transmit RRC messages in the control plane, and a DRB can be used as a channel to transmit user data in the user plane.

[0063] For example, a downlink transmission channel may include at least one of a broadcast channel (BCH) that transmits system information and / or a shared channel (SCH) that transmits user traffic or control messages. For example, traffic or control messages for a downlink multicast or broadcast service may be transmitted via a downlink SCH or via a separate multicast channel (MCH). Meanwhile, an uplink transmission channel may include at least one of a random access channel (RACH) that transmits initial control messages and / or a shared channel (SCH) that transmits user traffic or control messages. For example, a logical channel located above the transmission channel and mapped to the transmission channel may include at least one of a broadcast control channel (BCCH), a paging control channel (PCCH), a common control channel (CCCH), a multicast control channel (MCCH), and / or a multicast traffic channel (MTCH).

[0064] Hereinafter, a PDCCH used in a 5G NR mobile communication system is described as a specific example of signaling of control information (S107 in FIG. 1) transmitted by a base station (200 in FIG. 1) and received by a terminal (100 in FIG. 1) at the layer processing the physical channel.

[0065] The PDCCH carries Downlink Control Information (DCI). For example, the PCCCH (e.g., DCI) carries the transmission format and resource allocation of the DL-SCH, frequency / time resource allocation information for the UL-SCH (shared channel), paging information for the PCH (paging channel), system information on the DL-SCH, frequency / time resource allocation information for higher-layer control messages such as Random Access Responses (RAR) transmitted on the PDSCH, transmission power control commands, and information regarding the activation / deactivation of SPS / CS (Configured Scheduling). Various DCI formats are provided depending on the information within the DCI.

[0066] The following Table 2 shows examples of DCI formats transmitted via PDCCH.

[0067] DCI Format Purpose 0_0 PUSCH Scheduling in a Single Cell 0_1 Scheduling of one or more PUSCHs in a single cell, or instruction of downlink feedback information (CG-DFI) for configured grant PUSCH 1_0 PDSCH Scheduling in a Single Cell 1_1 Triggering of PDSCH scheduling in a single cell and / or one-shot HARQ-ACK codebook feedback 2_0 Notifying multiple UEs of slot format, available RB set, COT duration, and search space set group switching 2_1 Notifying multiple UEs of PRB and OFDM symbols that the UE may assume are not intended for transmission 2_2 Transmission of TPC commands for PUCCH and PUSCH 2_3 Transmission of multiple TPC commands for SRS transmissions by one or more UEs

[0068] DCI format 0_0 is used to schedule TB-based (or, TB-level) PUSCH, and DCI format 0_1 ​​may be used to schedule TB-based (or, TB-level) PUSCH or CBG (Code Block Group)-based (or, CBG-level) PUSCH. DCI format 1_0 is used to schedule TB-based (or, TB-level) PDSCH, and DCI format 1_1 may be used to schedule TB-based (or, TB-level) PDSCH or CBG-based (or, CBG-level) PDSCH (e.g., DL Grant DCI). DCI format 0_0 / 0_1 is referred to as UL Grant DCI or UL scheduling information, and 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 transmit dynamic slot format information (e.g., dynamic SFI) to terminals, and DCI format 2_1 is used to transmit downlink pre-Emption information to terminals. DCI format 2_0 and / or DCI format 2_1 may be transmitted to terminals within a group through a group common PDCCH, which is a PDCCH transmitted to terminals defined as a group.

[0069] PDCCH / DCI includes a cyclic redundancy check (CRC), and the CRC is masked / scrambled with various identifiers (e.g., Radio Network Temporary Identifier, RNTI) depending on the owner or use of the PDCCH. For example, if the PDCCH is for a specific terminal, the CRC is masked with C-RNTI (Cell-RNTI). If the PDCCH is for paging, the CRC is masked with P-RNTI (Paging-RNTI). If the PDCCH is for system information (e.g., System Information Block, SIB), the CRC is masked with SI-RNTI (System Information RNTI). If the PDCCH is for random access acknowledgments, the CRC is masked with RA-RNTI (Random Access-RNTI).

[0070] Table 3 below illustrates the uses and transmission channels of the PDCCH according to RNTI. The transmission channel indicates the transmission channel associated with the data carried by the PDSCH / PUSCH scheduled by the PDCCH.

[0071] RNTI Purpose Transmission Channel P-RNTI: Notification of paging and system information changes PCH SI-RNTI: Broadcast of system information DL-SCH RA-RNTI: Random access response DL-SCHT: Temporary C-RNTI: Resolve contention (if no valid C-RNTI is available) DL-SCHT: Temporary C-RNTI IM-sg3 Transmission UL-SCHC-RNTI, MCS (Modulation and Coding Scheme)-C-RNTI: Dynamic schedule-based unicast transmission UL-SCHC-RNTI: Dynamic schedule-based unicast transmission DL-SCHM: CS-C-RNTI: Dynamic schedule-based unicast transmission DL-SCHC-RNT: IP-DCCH-based random access triggering N / ACS (Configued Scheduling)-RNTI: Configured schedule-based unicast transmission (enable, re-enable, and retransmit) DL-SCH, UL-SCH CS-RNTI: Configured schedule-based unicast transmission (disable) N / ATPC (Transmit Power Control)-PUCCH-RNT: IP-DCCH power Control N / ATPC-PUSCH-RNTIPUSCH Power Control N / ATPC-SRS-RNTISRS Trigger and Power Control N / AINT(Interruption)-RNTIDL Preemption Indication N / ASFI(Slot Format Indication)-RNTI Slot Format Indication for Corresponding Cell N / ASP(Semi-persistent)-CSI(Channel State Information)-Enable RNTIPUSCH-based Semi-persistent CSI Reporting N / A

[0072] The modulation scheme of the PDCCH is fixed (e.g., Quadrature Phase Shift Keying, QPSK), and a single PDCCH consists of 1, 2, 4, 8, or 16 Control Channel Elements (CCEs) depending on the Aggregation Level (AL). A single CCE consists of 6 Resource Element Groups (REGs). A single REG is defined by one OFDMA symbol and one (P)RB.

[0073] FIG. 3 illustrates a REG structure. An embodiment of FIG. 3 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, suggestions, methods, and / or operations of said embodiment may be omitted.

[0074] Referring to FIG. 3, D represents a resource element (RE) to which DCI is mapped, and R represents an RE to which DMRS is mapped. DMRS is mapped to the 1st, 5th, and 9th REs in the frequency domain direction within a single symbol.

[0075] Meanwhile, the PDCCH is transmitted via the CORESET (Control Resource Set). The CORESET corresponds to a set of physical resources / parameters used to carry the PDCCH / DCI within the BWP. For example, the CORESET includes a set of REGs with a given neuromonology (e.g., SCS, CP length, etc.). The CORESET can be configured via system information (e.g., MIB) or terminal-specific (UE-specific) upper-layer signaling (e.g., RRC). Examples of parameters / information used to configure the CORESET are as follows. One or more CORESETs are configured for a single terminal, and multiple CORESETs may overlap in the time / frequency domain.

[0076] - controlResourceSetId: Represents the identification information (ID) of the CORESET.

[0077] - frequencyDomainResources: Represents the frequency domain resources of the CORESET. It is indicated by a bitmap, where each bit corresponds to an RB group (e.g., 6 consecutive RBs). For example, the Most Significant Bit (MSB) of the bitmap corresponds to the first RB group within the BWP. The RB group corresponding to the bit with a value of 1 is allocated as the frequency domain resource of the CORESET.

[0078] - duration: Represents the time domain resource of the CORESET. It indicates the number of consecutive OFDMA symbols that make up the CORESET. For example, duration has a value of 1 to 3.

[0079] - cce-REG-MappingType: Indicates the CCE-to-REG mapping type. Interleaved and non-interleaved types are supported.

[0080] - precoderGranularity: Represents the precoder granularity in the frequency domain.

[0081] - tci-StatesPDCCH: Represents information (e.g., TCI-StateID) indicating the Transmission Configuration Indication (TCI) state for the PDCCH. The TCI state is used to provide the Quasi-Co-Location (QCL) relationship between the DL RS(s) within the RS set (TCI-state) and the PDCCH DMRS port.

[0082] - tci-PresentInDCI: Indicates whether the TCI field within the DCI is included.

[0083] - pdcch-DMRS-ScramblingID: Represents the information used to initialize the PDCCH DMRS scrambling sequence.

[0084] Meanwhile, REGs within a CORESET are numbered based on a time-first mapping manner. For example, REGs are numbered sequentially starting from 0, beginning with the first OFDM symbol in the lowest-numbered resource block within the CORESET.

[0085] The mapping type from CCE to REG is set to one of the following: a non-interleaved CCE-REG mapping type or an interleaved CCE-REG mapping type.

[0086] FIG. 4 illustrates a non-interleaved CCE-REG mapping type. The embodiment of FIG. 4 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, suggestions, methods, and / or operations of said embodiment may be omitted.

[0087] Referring to FIG. 4, for a non-interleaved CCE-REG mapping type (or localized mapping type), the six REGs for a given CCE form a single REG bundle, and all REGs for a given CCE are consecutive. A single REG bundle corresponds to a single CCE.

[0088] FIG. 5 illustrates an interleaved CCE-REG mapping type. The embodiment of FIG. 5 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, suggestions, methods, and / or operations of the embodiments may be omitted.

[0089] Referring to FIG. 5, for an interleaved CCE-REG mapping type (or a distributed mapping type), 2, 3, or 6 REGs for a given CCE form a single REG bundle, and the REG bundle is interleaved within a CORESET. A REG bundle within a CORESET consisting of 1 OFDM symbol or 2 OFDM symbols consists of 2 or 6 REGs, and a REG bundle within a CORESET consisting of 3 OFDM symbols consists of 3 or 6 REGs. The size of the REG bundle is set per CORESET.

[0090] Meanwhile, to receive a PDCCH, the terminal may monitor a set of PDCCH candidates in a CORESET (e.g., blind decoding). A PDCCH candidate represents a CCE(s) that the terminal monitors for receiving / detecting a PDCCH. PDCCH monitoring may be performed in one or more CORESETs on an active DL BWP on each active cell where PDCCH monitoring is configured. The set of PDCCH candidates monitored by the terminal is defined as a set of PDCCH Search Spaces (SS). The SS set may be a set of Common Search Spaces (CSS) or a set of UE-specific Search Spaces (USS).

[0091] The following Table 4 illustrates the PDCCH search space.

[0092] Search Space Type RNTI Usage Examples Type 0-PDCCH SI-RNTI on the primary cell: Broadcast of System Information Type 0A-PDCCH SI-RNTI on the primary cell: Broadcast of System Information Type 1-PDCCH RA-RNTI or TC-RNTI on the primary cell: Msg2 and Msg4 in the RACH procedure Type 2-PDCCH P-RNTI on the primary cell: Paging: System Information Change Notification Type 3-PDCCH Common INT-RNTI, SFI-RNTI, TPC-PUSCH-RNTI, TPC-PUCCH-RNTI, TPC-SRS-RNTI, C-RNTI, MCS-C-RNTI, or CS-RNTI Group Signaling: UE Specific UE Specific C-RNTI, MCS-C-RNTI, or CS-RNTI Signaling (e.g., PDSCH / PUSCH)

[0093] SS sets can be configured via system information (e.g., MIB) or terminal-specific (UE-specific) upper layer (e.g., RRC) signaling. Each DL BWP in a serving cell may have up to S (e.g., 10) SS sets configured. For example, 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.

[0094] - searchSpaceId: Represents the ID of the SS set.

[0095] - controlResourceSetId: Represents the CORESET associated with the SS set.

[0096] - monitoringSlotPeriodicityAndOffset: Represents the PDCCH monitoring period interval (in slots) and the PDCCH monitoring interval offset (in slots).

[0097] - monitoringSymbolsWithinSlot: Represents the first OFDMA symbol(s) for PDCCH monitoring within the slot where PDCCH monitoring is configured. It is indicated by a bitmap, where each bit corresponds to each OFDMA symbol within the slot. The MSB of the bitmap corresponds to the first OFDMA symbol within the slot. The OFDMA symbol(s) corresponding to bit(s) with a bit value of 1 correspond to the first symbol(s) of the CORESET within the slot.

[0098] - nrofCandidates: AL={1, 2, 4, 8, 16} represents the number of star PDCCH candidates (e.g., one of 0, 1, 2, 3, 4, 5, 6, 8).

[0099] - searchSpaceType: Indicates whether the SS type is CSS or USS.

[0100] - DCI Format: Indicates the DCI format of the PDCCH candidate.

[0101] Based on the CORESET / SS set configuration, the terminal can monitor PDCCH candidates from one or more SS sets within the slot. An occasion (e.g., time / frequency resources) when PDCCH candidates must be monitored is defined as a PDCCH (monitoring) opportunity. One or more PDCCH (monitoring) opportunities may be configured within the slot.

[0102] FIG. 6 illustrates a communication structure that can be provided in a 6G system. An embodiment of FIG. 6 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, suggestions, methods, and / or operations of said embodiment may be omitted.

[0103] As core implementation technologies for 6G systems, technologies such as artificial intelligence (AI), THz (Terahertz) communication, optical wireless technology, free space optical transmission (FSO) backhaul networks, large-scale MIMO (multiple input multiple output) technology, blockchain, 3D networking, quantum communication, unmanned aerial vehicles, cell-free communication, wireless information and energy transfer (WIET), integration of sensing and communication, integration of access backhaul networks, holographic beamforming, big data analysis, and large intelligent surface (LIS) can be adopted.

[0104] - Artificial Intelligence: Introducing AI into communications can streamline and enhance real-time data transmission. AI can determine how complex target tasks are performed using numerous analyses. For example, AI can increase efficiency and reduce processing latency. Time-consuming tasks such as handover, network selection, and resource scheduling can be performed instantly using AI. AI can also play a significant role in M2M, machine-to-human, and human-to-machine communication. Furthermore, AI can enable rapid communication in Brain-Computer Interfaces (BCI). AI-based communication systems can be supported by metamaterials, intelligent structures, intelligent networks, intelligent devices, intelligent cognitive radios, self-sustaining wireless networks, and machine learning.

[0105] - THz Communication: Data transmission rates can be increased by expanding bandwidth. This can be achieved by using sub-THz communication with wide bandwidth and applying advanced large-scale MIMO technology. THz waves, also known as sub-millimeter radiation, generally refer to a frequency band between 0.1 THz and 10 THz with corresponding wavelengths ranging from 0.03 mm to 3 mm. The 100 GHz-300 GHz band range (Sub-THz band) is considered the primary portion of the THz band for cellular communication. Adding the Sub-THz band to the mmWave band increases 6G cellular communication capacity. Among the defined THz bands, the 300 GHz-3 THz band is located in the far-infrared (IR) frequency band. Although the 300 GHz-3 THz band is part of the optical band, it lies at the boundary of the optical band and immediately following the RF band. Therefore, this 300 GHz-3 THz band exhibits similarities to RF. Key characteristics of THz communication include (i) widely available bandwidth to support very high data transmission rates, and (ii) high path loss occurring at high frequencies (highly directional antennas are indispensable). The narrow beam width generated by highly directional antennas reduces interference. The small wavelength of THz signals allows a much larger number of antenna elements to be integrated into devices and BSs operating in this band. This enables the use of advanced adaptive array technologies that can overcome range limitations.

[0106] - Large-scale MIMO technology

[0107] - Hologram beamforming (HBF)

[0108] - Optical wireless technology

[0109] - Free Space Optical Transmission Backhaul Network (FSO backhaul network)

[0110] - Quantum communication

[0111] - Cell-free communication

[0112] - Integration of wireless information and power transmission

[0113] - Integration of wireless communication and sensing

[0114] - Integrated access and backhaul network

[0115] - Big data analysis

[0116] - Reconfigurable intelligent metasurface

[0117] - Metaverse

[0118] - blockchain

[0119] - Advanced Air Mobility (AAM): AAM can be a broad concept encompassing Urban Air Mobility (UAM), Regional Air Mobility (RAM), and Uncrewed Aerial Systems (UAS). For example, AAM may include UAM, RAM, UAS, and UAVs (uncrewed aerial vehicles).

[0120] - Autonomous driving (self-driving): V2X (vehicle to everything), a core element of building autonomous driving infrastructure, refers to technologies that enable vehicles to communicate and share with various elements on the road to perform autonomous driving, such as wireless communication between vehicles (vehicle to vehicle, V2V) and between vehicles and infrastructure (vehicle to infrastructure, V2I).

[0121] - Non-terrestrial Network (NTN): An NTN may refer to a network or network segment that utilizes RF (radio frequency) resources mounted on a satellite (or UAS platform). The use of NTN services may be considered to secure wider coverage or to provide wireless communication services in locations where the installation of wireless communication base stations is difficult.

[0122] - Integrated Sensing and Communication (ISAC): Integrated Sensing and Communication (ISAC) is a wireless sensing technology that utilizes radio frequencies to determine the instantaneous linear velocity, angle, and distance (range) of objects, thereby obtaining information about the characteristics of the environment and / or objects within that environment. Since radio frequency sensing capabilities do not require connecting to objects via devices within a network, they can provide services for determining object locations without the need for devices. The ability to obtain range, velocity, and angle information from radio frequency signals can provide a wide range of new functions, such as various object detection and recognition (e.g., vehicles, humans, animals, UAVs), as well as high-precision localization, tracking, and activity recognition. Wireless sensing services can provide information to various industries (e.g., unmanned aerial vehicles, smart homes, V2X, factories, railways, public safety, etc.) that enable applications such as intruder detection, assisted vehicle steering and navigation, trajectory tracking, collision avoidance, traffic management, and health and traffic management. In some cases, wireless sensing may use non-3GPP type sensors (e.g., radar, cameras) to further support 3GPP-based sensing. For example, the operation of a wireless sensing service (e.g., sensing operation) may rely on the transmission, reflection, and scattering processing of wireless sensing signals. Therefore, wireless sensing can provide an opportunity to enhance existing communication systems from communication networks into wireless communication and sensing networks.

[0123] - Reconfigurable Intelligent Surface (RIS): An RIS can be used to manipulate and enhance signal propagation in a wireless communication environment. For example, an RIS can be composed of many small antennas or metasurfaces arranged on a surface, each of which can actively control the phase, amplitude, polarization, etc., of the reflected signal. For instance, an RIS can improve signal reception by controlling the path, phase, and / or strength of the propagating signal. For instance, power consumption can be very low because power is consumed only for controlling the phase and amplitude of the small antennas. For instance, since an RIS can be reconfigured to suit various environments, it can meet diverse communication requirements and operate effectively in dynamic network environments.

[0124] The following describes NES (network energy saving) technology.

[0125] Energy conservation in base stations is considered important in wireless communication systems, including 3GPP, as it can contribute to building eco-friendly networks by reducing carbon emissions and lowering the operational expenditure (OPEX) of telecommunications operators. In particular, as the introduction of 5G communication requires high transmission rates, base stations must be equipped with a larger number of antennas and provide services through wider bandwidths and frequency bands. Accordingly, 5G systems are adopting various technologies to reduce energy consumption under the name of Network Energy Savings (NES), and the standardization of related technologies is expected to continue.

[0126] With the application of NES technology, the base station can perform operations such as controlling on / off for a certain duration in the time axis, controlling transmit / receive resources for UE-common or UE-specific signals / channels, changing the amount of resources in the frequency axis, controlling transmission power, or turning on / off antenna ports, TRPs (transmission-reception points), etc. in the spatial domain.

[0127] FIG. 7 illustrates the operation procedure of a base station supporting NES technology. The embodiment of FIG. 7 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, proposals, methods, and / or operations of the embodiments may be omitted.

[0128] Referring to FIG. 7, the base station identifies the NES solution(s) to be applied. The NES solution(s) may be related to the control of signal transmission and reception (e.g., on / off), beam operation, handover procedures, channel measurement and reporting, etc. Which NES solution(s) to apply may be adaptively selected based on the current situation (e.g., cell load level, characteristics of connected terminals, etc.) or may be predefined. The base station that has identified the NES solution(s) performs signaling for the NES. The specific signaling procedure may vary depending on the identified NES solution(s). For example, the base station may transmit common information regarding the NES solution(s), transmit configuration information necessary for NES operation to at least one terminal, or transmit control information regarding the progress of the NES operation to at least one terminal. Additionally, the base station may receive capability information related to the NES from at least one terminal. Subsequently, the base station performs operations for the NES. At this time, the base station may perform operations for the NES based on the signaling performed earlier. For example, depending on system information, configuration information, and control information transmitted through signaling, the base station can turn the transmission and reception of specific signals on / off, turn elements of the spatial domain on / off, or adjust resources for the transmission and reception of measurement signals. NES technology can be performed through a procedure such as that shown in Fig. 7. Examples of NES solutions that can be performed by a procedure such as that shown in Fig. 7 are as follows.

[0129] - Intra-system energy saving solution: A RAN node may request a neighboring RAN node to switch at least one SSB beam into its inactive cell, or perform paging using a limited set of beams to an inactive terminal (e.g., a stationary terminal).

[0130] - Inter-system energy saving solution: An NG-RAN node owning a capacity booster cell can autonomously switch the cell to an inactive state.

[0131] - SSB-less SCell solution: If no SSB or SMTC (SSB-based RRM measurement timing configuration) settings are provided for the SCell, the terminal can obtain timing reference and AGC sources from other serving cells. In FR1 or FR2, the base station can set up intra-band CA or inter-band CA that includes an SSB-less SCell, in which case SSB / SIB transmission can be triggered by the terminal's WUS (wake-up signal). Accordingly, as the period of common channels / signals such as SSB increases, the base station can remain in a sleep state for a longer period of time.

[0132] - Cell DTX / DRX Solution: To reduce the downlink transmit / uplink receive activity time of a base station, periodic cell DTX / DRX patterns (e.g., active and inactive periods) may be set commonly for terminals within a cell having the corresponding feature. Here, the cell DTX pattern and the cell DRX pattern may be set and activated separately, and up to two cell DTX / DRX patterns may be set per MAC entity. When cell DTX is set and activated, at least one of monitoring SPS opportunities or PDCCH monitoring may be suspended during the cell DTX inactive period. When cell DRX is set and activated, at least one of transmitting from CG resources or SR transmitting may be suspended during the cell DRX inactive period. Cell DTX / DRX may be enabled / disabled via RRC signaling or L1 group common signaling.

[0133] - Parameters such as active duration and cycle may be set for the cell DTX / DRX. The active duration is the period during which the terminal waits to transmit an SR or CG after receiving a PDCCH or SPS opportunity, and the cycle specifies the periodic repetition of the active duration and the inactive duration. When both the cell DTX and cell DRX are set, parameters such as the active duration and cycle are common. For example, if the base station recognizes an emergency call or public safety-related service (e.g., MPS or MCS), the network may release or disable the cell DTX / DRX settings so as not to affect the service. Additionally, at least some overlap is required between the active duration of the terminal's connected mode DRX and the active duration of the cell DTX / DRX. For example, the period of the terminal's connected mode DRX may be a multiple of the cell DTX / DRX period, or vice versa.

[0134] - Conditional Handover (CHO) Solution: A CHO procedure, performed in such a way that the execution of a handover is determined by the terminal, is used while NES technology is applied (e.g., when a cell enables or disables Cell DTX / DRX). In this case, the terminal may use an NES-specific CHO event to execute a CHO for a candidate cell, and as an additional triggering condition for this, the reception of a DCI that enables CHO condition(s) set as an NES event indication may be applied.

[0135] - Spatial and power domain adaptation solution: To support the gNB for transceiver muting and / or transmission power adaptation, the terminal may be configured to report multiple CSI entries in the CSI report based on multiple sub-configurations. Each sub-configuration corresponds to a spatial domain adaptation pattern (e.g., a subset of available spatial elements) and / or a data channel (e.g., PDSCH) and a power offset between CSI and RS. Depending on the application of the spatial and power domain adaptation solution, CSI configuration, measurement, and / or reporting behavior may be affected.

[0136] Meanwhile, the following enhancement techniques are being considered in 3GPP NR Rel-19.

[0137] (1) On-demand SSB

[0138] For example, a method to reduce energy consumption can be discussed in which a base station transmits an SSB to a specific cell through an on-demand SSB process, and does not transmit an SSB to that cell when the on-demand SSB process is not present. In existing NR systems, it was difficult to reduce energy consumption even when the base station had no data to receive or send, as SSBs had to be transmitted periodically at all times for purposes such as time / frequency synchronization or RRM measurement. Considering this, the base station can reduce energy consumption by refraining from transmitting SSBs and only performing transmissions when the on-demand SSB process is involved. The on-demand SSB process can be triggered through one of the following methods.

[0139] 1) The terminal requests the base station's SSB transmission by transmitting an uplink signal / channel (e.g., PRACH, PUCCH, PUSCH, SRS, etc. in an NR system).

[0140] 2) Request SSB transmission from Base Station (or TRP) #1 to Base Station (or TRP) #2 via an interface between base stations (e.g., Xn interface in NR systems) or backhaul signaling, etc.

[0141] 3) Signaling whether an SSB is transmitted for the corresponding Scell ​​through Scell ​​activation / deactivation signaling

[0142] Considering coexistence with existing NR terminals, the Rel-19 is limited to on-demand SSB operation for connected mode terminals and SCells, but in future release or next-generation communication systems, on-demand SSB operation (for SSB transmission on PCells) may be defined considering inactive or idle mode terminals or initial connection terminals. In addition, carrier aggregation (CA) including the SCell may be applied to both intra-band CA and inter-band CA, and the SSB on the SCell transmitted through the on-demand SSB process may be utilized for at least time / frequency synchronization, L1 / L3 measurement, and SCell activation.

[0143] (2) On-demand SIB1 transmission

[0144] For example, a method to reduce energy consumption can be discussed in which a base station transmits a SIB1 for a specific cell through an on-demand SIB1 process, and does not transmit a SIB1 for that cell when there is no on-demand SIB1 process. In existing NR systems, it was difficult to reduce energy consumption even when the base station had no data to receive or send, because it was always necessary to periodically provide a SIB1 containing system information and random access information for terminals in initial access or idle mode to access a cell. Considering this, the base station can reduce energy consumption by not performing SIB1 transmission and only performing SIB1 transmission when an on-demand SIB1 process is involved. The base station's SIB1 transmission can be triggered by the terminal transmitting an uplink signal / channel (e.g., PRACH in NR systems).

[0145] FIG. 8 illustrates on-demand SIB1 transmission. An embodiment of FIG. 8 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, suggestions, methods, and / or operations of said embodiment may be omitted.

[0146] Referring to FIG. 8(a), a terminal that receives an SSB (and / or other downlink signal / channel) in cell #1 and recognizes that SIB1 is not being transmitted on cell #1 can trigger the transmission of SIB1 by transmitting a signal requesting SIB1 based on information provided by the SSB (and / or other downlink signal / channel) and / or predetermined information (in this embodiment, for convenience, the signal is referred to as WUS, wake-up signal). A base station that receives the WUS can transmit a specific DL signal / channel on cell #1 in response thereto, or transmit SIB1 on cell #1 (or without transmitting the DL signal / channel).

[0147] Referring to FIG. 8(b), a terminal that receives an SSB (and / or other downlink signal / channel such as SIB1) in cell #1 and realizes that SIB1 is not being transmitted on cell #2 may attempt to camp-on through cell #2. The terminal may trigger the transmission of SIB1 to cell #2 by transmitting a signal (e.g., WUS) requesting SIB1 on cell #1 based on information provided in the received SSB (and / or other downlink signal / channel such as SIB1) and / or predetermined information. A base station that receives the WUS may transmit a specific DL signal / channel (on cell #1 or cell #2) in response, or transmit SIB1 to cell #2 on cell #1 or cell #2 (or without transmitting the DL signal / channel).

[0148] Referring to FIG. 8(c), a terminal that receives an SSB (and / or other downlink signal / channel such as SIB1) in cell #1 and realizes that SIB1 is not being transmitted on cell #2 may attempt to camp-on through cell #2. The terminal may trigger the transmission of SIB1 to cell #2 by transmitting a signal (e.g., WUS) requesting SIB1 on cell #2 based on information provided in the received SSB (and / or other downlink signal / channel such as SIB1) and / or predetermined information. A base station that receives the WUS may transmit a specific DL signal / channel (on cell #1 or cell #2) in response, or transmit SIB1 to cell #2 on cell #1 or cell #2 (or without transmitting the DL signal / channel).

[0149] For example, as in FIG. 8 (b) or (c), when multiple cells are involved for on-demand SIB1 operation, Cell #1 and Cell #2 can be defined as follows.

[0150] - Cell A (e.g., Cell #1): A cell that periodically transmits at least its own SIB1.

[0151] - NES cell (e.g., Cell #2): A cell capable of performing SIB1 transmission in response to the UE's UL WUS.

[0152] For example, Cell A may refer to a cell where SIB1 information for that cell is periodically transmitted over that cell, and may also be expressed as Cell #1 or an anchor cell. Additionally, an NES cell may refer to a cell where SIB1 is provided in response to the uplink WUS from the terminal, and may also be expressed as Cell #2 or a non-anchor cell.

[0153] A method by which a terminal discovers a cell and knows that the cell is an NES cell (requiring on-demand SIB1 operation) may be at least one of the following methods or a combination thereof.

[0154] - The terminal can recognize that it is an NES cell through SIB and / or WUS configuration information (provided by Cell A).

[0155] - The terminal can recognize that it is an NES cell through information such as the center frequency of the PBCH / MIB / SSB (received from the NES cell).

[0156] - The terminal can recognize that it is an NES cell through DCI information (received from the NES cell). The terminal can receive the corresponding DCI in the CORESET / search space configured in the PBCH / MIB / SSB (received from the NES cell). Additionally, a separate RNTI value for the corresponding DCI can be pre-configured / defined.

[0157] - If the terminal attempts to receive SIB1 of the cell but fails to receive SIB1 for a certain period of time or longer, the terminal can recognize that it is an NES cell.

[0158] Meanwhile, the terminal may receive a configuration for an uplink WUS requesting SIB1 for an NES cell through at least one of the following methods or a combination thereof.

[0159] - RRC messages transmitted from Cell A (e.g., SIB1 or other system information block, RRC release message)

[0160] - DCI transmitted over Cell A or NES cell

[0161] - msg2 / msg4 (via 4-stage random access procedure) or msgB (via 2-stage random access procedure) transmitted from Cell A

[0162] - Center frequency of PBCH / MIB / SSB transmitted over NES cell

[0163] - Information pre-defined / pre-configured in the specification

[0164] (3) Adaptation of common signal / channel transmissions

[0165] For example, methods to reduce energy consumption by controlling common signal / channel transmissions such as SSB, PRACH, and paging can be discussed. For instance, while completely turning off the SSB can significantly reduce the energy consumption of the base station, the absence of an SSB that performs functions such as time / frequency synchronization or RRM measurement may result in unstable operation for the corresponding cell from the terminal's perspective. Considering this, energy saving effects for the base station can be achieved by changing the transmission patterns of the SSB (e.g., transmission period, period per SSB candidate index(s), SSB candidate index(s) transmitted within a single transmission period, transmission power, etc.) depending on the situation.

[0166] In the case of PRACH resources, in the case of contention-based random access, energy consumption can increase because the base station always attempts to receive from the configured PRACH resources since it is unknown when the terminal will transmit PRACH. Considering this, the energy of the base station can be saved by applying methods to adjust the amount of PRACH resources (e.g., adjusting the cycle of PRACH resources, pre-configuring PRACH resource set #1 and set #2 and adjusting the amount of resources through instructions such as turning on only one set or turning on both sets, or providing the corresponding amount of PRACH resources for each SSB index uniformly or non-uniformly).

[0167] In the case of paging, conventionally, paging frames (PF) and / or paging occasions (PO) were distributed along the time axis within a DRX cycle (or paging cycle), and terminals attempted to receive paging at specific PF / POs derived from their ID-based formulas. From the base station's perspective, if paging was to be transmitted to multiple terminals simultaneously, it was necessary to transmit paging while frequently breaking the data. To reduce the resulting energy consumption of the base station, it is possible to consider placing the PF and / or PO for paging reception as close to the time axis as possible, or placing them using different frequency axis resources within the same timeframe.

[0168] Meanwhile, among the signals transmitted by base stations, static or semi-static signals (e.g., always-on signals) can be provided for various purposes such as cell search, measurement, synchronization, and T / F tracking of terminals. While these signals are necessary to reliably provide basic operations required by terminals, they can be burdensome in terms of resource overhead and energy consumption because periodic transmission by the base station is required. In 5G NR, by providing mechanisms that minimize the transmission of Reference Signals (RS) other than some SSBs, the burden caused by always-on signals has been reduced compared to 4G LTE base stations that must always transmit CRSs. Additionally, an on-demand SSB method has been introduced, supporting a method in which the period of always-on SSBs is set long, and additional SSB transmissions are performed temporarily only in necessary sections.

[0169] Meanwhile, in next-generation wireless communication systems including 6G, the design of operations and devices from the perspectives of Network Energy Saving (NES) and UE Power Saving (UPS) is receiving significant attention for sustainable development. In particular, from an NES perspective, technological directions aimed at reducing the number of always-on signals that base stations must transmit are receiving considerable attention. For example, methods to increase the transmission cycle of always-on signals for synchronization purposes, such as the SSB in 5G NR, may be considered. However, if the cycle of always-on signals is extended, it can have a negative impact on various terminal operations performed based on those signals. For instance, the larger the interval between a specific signal / channel that a terminal expects to receive and the preceding always-on signal, the higher the terminal's power consumption may become, which can be disadvantageous from a UPS perspective.

[0170] FIG. 9 illustrates an example showing the extent to which the power consumption of a terminal is affected according to the period of an always-on signal. The embodiment of FIG. 9 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, proposals, methods, and / or operations of the embodiments may be omitted.

[0171] Referring to FIG. 9, the period of the always-on signal in FIG. 9 (a) is T1, and the period of the always-on signal in FIG. 9 (b) is T2, illustrating the relationship 2*T1=T2. For example, in FIG. 9 (a), when a terminal wants to receive a specific DL channel (902), it can utilize an adjacent always-on signal (901), and the period during which additional power consumption occurs to maintain time / frequency synchronization, etc., can be relatively short with a length of G1. On the other hand, in FIG. 9 (b), when a terminal wants to receive a specific DL channel (904), it can utilize an adjacent always-on signal (903), and for this, a relatively long time G2 occurs.

[0172] For example, as mentioned above, one method to reduce losses in terms of power consumption of the terminal may be to position the target signal / channel being transmitted to and received by the terminal adjacent to the always-on signal. However, considering that there are multiple terminals transmitting and receiving within a single cell and that the target signals / channels expected by each terminal may vary, this solution can cause problems such as generating high congestion near the always-on signal, thereby increasing the probability of collisions between signals / channels. As another solution, one might consider enhancing the terminal's UPS effect by setting / indicating a dedicated always-on signal for each of the signals / channels expected to be transmitted or received by the terminal. However, this increases the transmission of necessary always-on signals, resulting in adverse effects from an NES perspective.

[0173] In summary, in conventional technology, it may be difficult for a terminal to efficiently determine in advance whether reception of a specific signal, channel, or reference signal is necessary. Consequently, the terminal may be required to perform reception standby or monitoring even when reception is not actually required, which can lead to increased power consumption. Alternatively, for example, if the transmission cycle of an always-on signal is extended, the time interval between the specific signal or channel the terminal expects to receive and the always-on signal may increase; consequently, the terminal may need to maintain time / frequency synchronization, beam alignment, and / or a reception readiness state for a longer period, which can be disadvantageous in terms of power efficiency. Furthermore, for example, since it may be difficult for the terminal to clearly determine whether reception of a reference signal at a specific reference signal occasion is actually necessary or valid, unnecessary reception of the reference signal may occur, or the probability of failure to receive the required reference signal may increase, which can be disadvantageous in terms of both power efficiency and reception reliability.

[0174] In order to solve the above-mentioned problem, the present disclosure proposes a method for a terminal to expect additional RS reception in addition to an always-on signal, and operations of a device supporting this. The proposals of the present disclosure may be used by combining one or more of the elements described therein.

[0175] The method proposed in the present disclosure supports a method for a terminal to assume reception of a specific RS (e.g., a conditional reference signal (hereinafter "Cond-RS")) on a specific radio resource area (hereinafter "RS occasion"). To this end, the terminal may receive configuration information related to the reception of the Cond-RS from a base station, and the configuration information may include information on the RS occasion and a conditional window (hereinafter "Cond-window"). In this case, for example, the RS occasion may refer to a periodic radio resource area where the terminal can expect reception of the Cond-RS according to a specific condition, and the Cond-window may refer to a radio resource area where one of the specific conditions under which the terminal can expect reception of the Cond-RS is determined. In this case, for example, one RS occasion may be determined to be related to at least one Cond-window.

[0176] For example, the above specific condition may include the case where the terminal detects at least one event for a single Cond-window. For example, when such a specific condition is satisfied, the terminal can expect to receive an actual Cond-RS on the RS occupation(s) associated with the said Cond-window.

[0177] For example, if a terminal does not satisfy any specific conditions, such as failing to detect an event on all Cond-windows related to a single RS occupancy, or failing to receive a separate setting / instruction to expect reception of Cond-RS on the RS occupancy, the terminal may determine that it cannot expect reception of Cond-RS on the RS occupancy.

[0178] For example, the above event may include cases where the detection of a specific DCI scrambling by a specific RNTI on a specific search space is successful.

[0179] FIG. 10 illustrates a method in which a terminal assumes / determines Cond-RS reception on a specific RS occupancy based on an event on a Cond-window, according to one embodiment of the present disclosure. The embodiment of FIG. 10 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, suggestions, methods, and / or operations of said embodiments may be omitted.

[0180] Referring to FIG. 10 (a), a specific RS occupation (1002) is shown in relation to a specific Cond-window (1001). In this case, for example, if no event occurs on the Cond-window (1001), the terminal cannot expect to receive Cond-RS on the RS occupation (1002).

[0181] Additionally, referring to FIG. 10(b), a case is shown in which a specific RS occupancy (1011) is associated with a specific Cond-window (1012). In this case, for example, if the terminal succeeds in detecting an event (1013) expected by the terminal on the Cond-window (1012), the terminal can expect to receive Cond-RS on the RS occupancy (1011). For example, the embodiment of FIG. 10 is an example to show the principle of operation of the method proposed in this disclosure, and it will be understood by those skilled in the art that the proposed method is not limited to the embodiment of FIG. 10.

[0182] For example, an RS occupation may be configured to have a periodic position, and to this end, information such as the size of the RS occupation (e.g., number of symbols), the period (e.g., number of subframes or slots), the reference timing at which the period begins (e.g., the starting boundary of SFN#0), and the starting offset (e.g., number of slots / symbols) may be configured.

[0183] For example, the Cond-window can be configured to have a periodic position, and to this end, information such as the size of the Cond-window (e.g., number of symbols), the period (e.g., number of subframes or slots), the reference timing at which the period begins (e.g., the starting boundary of SFN#0), and the starting offset (e.g., number of slots / symbols) can be configured.

[0184] For example, the RS location can be determined as a position relative to the Cond-window. Or, for example, conversely, the position of the Cond-window can be determined as a position relative to the RS location.

[0185] The method for determining the relationship between the RS occupation and the Cond-window proposed in this disclosure is as follows. Meanwhile, in this disclosure, the statement that a relationship is formed between the RS occupation and the Cond-window may mean that when an event satisfying a condition occurs on the Cond-window, a relationship is established in which the terminal can expect to receive the Cond-RS on the RS occupation that is related thereto.

[0186] [Proposal #1] Method to establish a relationship between a single RS occupation and one or more Cond-window(s)

[0187] For example, a single RS location may be associated with one or more Cond-window(s). In this case, for example, if an event satisfying the conditions for the assumption of Cond-RS reception occurs on at least one Cond-window among the Cond-window(s associated with a single RS location), the terminal may determine that it can assume the reception of Cond-RS on the corresponding RS location. For example, if no event satisfying the conditions for the assumption of Cond-RS reception occurs on any of the Cond-window(s associated with the RS location), the terminal may determine that it cannot expect the reception of Cond-RS on the RS location unless other conditions are satisfied.

[0188] FIGS. 11a and 11b illustrate an example of a case in which, according to an embodiment of the present disclosure, a single RS occupation is related to a plurality of Cond-windows, and the assumption of a terminal's Cond-RS on the RS occupation is performed according to an event occurring on each Cond-window. The embodiment of FIG. 11 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, proposals, methods, and / or operations of the embodiments may be omitted.

[0189] Referring to FIG. 11a (a), the RS occupancy (1103) is associated with two Cond-windows (1101 and 1102). For example, FIG. 11 (a) shows a case where no event occurs on any of the associated Cond-windows, and the terminal cannot assume reception of Cond-RS on the RS occupancy (1103). Referring to FIG. 11a (b), the RS occupancy (1113) is associated with two Cond-windows (1111 and 1112), and referring to FIG. 11b (a), the RS occupancy (1123) is associated with two Cond-windows (1121 and 1122). In this case, for example, FIG. 11a(b) and FIG. 11b(a) show a case where an event occurs on one of the two Cond-widows, and accordingly, the terminal can expect to receive Cond-RS on RS occlusion (1113) and RS occlusion (1123). Referring to FIG. 11b(b), RS occlusion (1133) is related to two Cond-windows (1131 and 1132). In this case, for example, FIG. 11b(b) shows a case where an event occurs on all Cond-widows, and accordingly, the terminal can expect to receive Cond-RS on RS occlusion (1133). The embodiments of FIG. 11a and FIG. 11b are examples to show the principle of operation of the method proposed in this disclosure, and those skilled in the art will understand that the proposed method is not limited to the examples of FIG. 11a and FIG. 11b.

[0190] For example, when multiple Cond-windows are related to a single RS occupation, the Cond-windows can be configured so that they do not overlap in the time domain. This can provide a structure that is advantageous when you want to configure discontinuous Cond-windows or when you want to differentiate the actions accompanying the occurrence of events in each Cond-window.

[0191] For example, when multiple Cond-windows are related to a single RS occupation, it can be configured so that the Cond-windows overlap in the time domain. This can be useful when you want to independently control the expected intervals for each event by setting events differently for each Cond-window (e.g., applying different RNTIs or search spaces that generate events in each Cond-window).

[0192] [Proposal #2] Method for establishing a relationship between a single Cond-window and one or more RS occupation(s).

[0193] For example, a single Cond-window may be associated with one RS occupancy(s). In this case, for example, if an event occurs on a Cond-window associated with multiple RS occupancy(s), the terminal may determine that reception of Cond-RS can be assumed on all or some of the RS occupancy(s) associated with said Cond-window. For example, if no event occurs on said Cond-window, the terminal may determine that reception of Cond-RS cannot be expected on all RS occupancy(s) associated with it unless other conditions are satisfied.

[0194] FIG. 12 illustrates an example of a case in which, according to one embodiment of the present disclosure, a Cond-window is related to a plurality of RS occupations, and the assumption of the terminal's Cond-RS on each RS occupation is performed according to an event occurring on one Cond-window. The embodiment of FIG. 12 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, proposals, methods, and / or operations of the embodiments may be omitted.

[0195] Referring to FIG. 12(a), the Cond-window (1201) is associated with two RS occupations (1202 and 1203). For example, FIG. 12(a) shows a case where, if no event occurs on the Cond-window, the terminal cannot assume reception of Cond-RS on RS occupation (1202) and RS occupation (1203). Referring to FIG. 12(b), the Cond-window (1211) is associated with two RS occupations (1212 and 1213). For example, FIG. 12(b) shows a case where, if an event occurs on the Cond-window, the terminal can assume reception of Cond-RS on RS occupation (1212) and RS occupation (1213), which are associated with both.

[0196] For example, when multiple RS applications are related within a single Cond-window, the related multiple RS applications may be provided in a form where repetition in the time domain is configured within the configuration of a single RS application. This can provide the benefit of relatively simplifying transmit / receive operations and signaling overhead by providing instruction information that takes this into account during the RS application configuration phase, especially when burst RS transmission is required for a specific purpose.

[0197] For example, when multiple RS applications are related within a single Cond-window, the related multiple RS applications may be provided in the form of a set of independent RS application configurations. This can have advantages in terms of a flexible structure for flexibly utilizing multiple RS applications in situations where individual RS applications are in operation, by grouping RS applications configured for different purposes according to specific purposes or temporary needs.

[0198] [Proposal #3] How to determine the relationship between RS occupation and Cond-window

[0199] In the method proposed in this disclosure, one or more of the following methods may be used in combination as a specific manner in which the relationship between the RS occupation and the Cond-window is formed.

[0200] (Method #1) A method in which related RS occupations and Cond-windows are configured as pairs

[0201] For example, the configuration for a single RS location may include information regarding the related Cond-windows. For instance, if multiple Cond-windows are related to a single RS location, the configuration may include information regarding all related Cond-windows. For instance, RRC parameters that provide configuration information for an RS location may be configured to include information regarding Cond-windows as sub-information. For instance, this may be information expressed directly, such as the relative position and size of the Cond-window in the time domain, or it may be an index for information about the Cond-windows provided separately.

[0202] For example, the configuration for the above RS location may include time-domain location information for the RS location and the associated Cond-window(s). For example, specifically, the time-domain location information for the RS location may be configured with information including a period and an offset, and the time-domain location of the Cond-window may be determined as a relative position to the RS location. Specifically, for example, the following structures may be used.

[0203] (Method #1-1) For example, the starting position of a Cond-window can be set as the first symbol following the last symbol of the RS occupation. In this case, for example, the length of the Cond-window may be determined by including a parameter explicitly set for this purpose in the configuration information, by implicitly calculating it based on other parameters, and / or by conventions defined in the standard. For example, if multiple Cond-windows are related to a single RS occupation, a structure in which Cond-windows are arranged sequentially may be used, that is, a method in which the starting position of the first Cond-window is determined based on the RS occupation, and the starting positions of subsequent Cond-windows are determined based on the end time of the immediately preceding Cond-window.

[0204] (Method #1-2) For example, the starting position of the Cond-window can be set to a symbol that starts after a gap of a certain size from the last symbol (or, first symbol) of the RS occupation. In this case, for example, the size of the gap can be determined by including a parameter explicitly set for this purpose in the configuration information, or by implicitly calculating it based on other parameters, and / or by a convention set in the standard. Additionally, for example, the length of the Cond-window can be determined by including a parameter explicitly set for this purpose in the configuration information, or by implicitly calculating it based on other parameters, and / or by a convention set in the standard. For example, if multiple Cond-windows are related to a single RS occupation, the size of the gap applied to each Cond-window can be set / instructed / agreed upon differently.

[0205] (Method #1-3) For example, the starting position of the Cond-window may be set to the last symbol of the RS occupation (or, the symbol starting a certain size gap before the first symbol). In this case, for example, the size of the gap may be determined by including a parameter explicitly set for this purpose in the configuration information, or by implicitly calculating it based on other parameters, and / or by a convention set in the standard. Additionally, for example, the length of the Cond-window may be determined by including a parameter explicitly set for this purpose in the configuration information, or by implicitly calculating it based on other parameters, and / or by a convention set in the standard. For example, if multiple Cond-windows are related to a single RS occupation, the size of the gap applied to each Cond-window may be set / instructed / agreed to be different.

[0206] For example, the method proposed in this disclosure may be a method in which information regarding RS occupation(s) related thereto is included in the configuration for a single Cond-window, in the opposite structure. For example, the RRC parameter, which provides configuration information for a Cond-window, may be configured to include information regarding RS occupations as sub-information. This information may be directly expressed, including the relative position and size of the RS occupations in the time domain, or it may be an index for information regarding RS occupations provided separately.

[0207] For example, the configuration for the above Cond-window may include time-domain location information for the Cond-window and its related RS occupation(s). For example, specifically, the time-domain location information for the Cond-window may be configured with information including period, offset, and length, and the time-domain location of the RS occupation may be determined as a relative position with respect to the Cond-window. Specifically, for example, the following structures may be used.

[0208] (Method #1-4) For example, the location of the symbol where an RS occupancy ends can be set to the first symbol prior to the first symbol of the Cond-window. In this case, for example, configuration information including the symbol length of the RS occupancy may be determined by including parameters explicitly set for this purpose in the configuration information, or by implicitly calculating it based on other parameters, and / or by conventions defined in the standard. For example, if multiple RS occupations are related to a single Cond-window, the RS occupations may be arranged sequentially. For example, a method may be used in which, after the location of the RS occupancy closest to the Cond-window is determined, the location of the ending symbol of the preceding RS occupations is determined based on the location of the starting symbol of the immediately preceding RS occupancy. In this case, for example, a gap may be formed between the RS occupations, and its size may be set / indicated / agreed upon.

[0209] (Method #1-5) For example, the location of the symbol where the RS occupation starts (or ends) can be set to a symbol that starts a certain size gap before the symbol where the Cond-window starts. In this case, for example, the size of the gap can be determined by including a parameter explicitly set for this purpose in the configuration information, or by implicitly calculating it based on other parameters, and / or by a convention set in the standard. Additionally, for example, the configuration information including the length of the RS occupation symbol can be determined by including a parameter explicitly set for this purpose in the configuration information, or by implicitly calculating it based on other parameters, and / or by a convention set in the standard. For example, if multiple RS occupations are related to a single Cond-window, the size of the gap applied to each RS occupation can be set / instructed / agreed upon differently.

[0210] (Method #1-6) For example, the location of the symbol where the RS occupation starts (or ends) can be set to a symbol that starts after a certain gap from the symbol where the Cond-window starts. In this case, for example, the size of the gap can be determined by including a parameter explicitly set for this purpose in the configuration information, or by implicitly calculating it based on other parameters, and / or by a convention set in the standard. Additionally, for example, the configuration information including the length of the RS occupation symbol can be determined by including a parameter explicitly set for this purpose in the configuration information, or by implicitly calculating it based on other parameters, and / or by a convention set in the standard. For example, if multiple RS occupations are related to a single Cond-window, the size of the gap applied to each RS occupation can be set / instructed / agreed upon differently.

[0211] For example, the method(s) proposed in the above-described Method #1 are configured in units of related RS locations and Cond-windows, and signaling overhead for location configuration can be saved because the location of the Cond-window can be determined relatively to the RS location (or vice versa). Additionally, benefits can be provided in terms of simplifying the operation of the base station and the terminal, for example, because no separate rule is required to determine paired RS locations and Cond-windows.

[0212] In addition, for example, the method(s) proposed in the above-described method #1 can provide a device that allows the base station to control the temporal arrangement between the related RS occupation and the Cond-window when a method for adjusting the size of the gap is used, particularly as in method #1-2 and example method #1-4, thereby providing the base station with degrees of freedom to configure the intended operation.

[0213] (Method #2) A method in which related RS occupations and Cond-windows are each configured individually, and the relationship is determined based on conditions.

[0214] For example, information regarding RS locations and Cond-windows can be configured through separate configuration information, and a relationship can be established between the RS location and the Cond-window when specific conditions are met. For instance, configuration information regarding RS locations and Cond-windows can be provided through separate RRC parameters. In this case, for instance, the information provided through the configuration information for RS locations may be information about candidates that could become RS locations, and each candidate can be configured to function as an actual RS location when a related Cond-window exists. Alternatively, for instance, the information provided through the configuration information for Cond-windows may be information about candidate locations that could become Cond-windows, and each candidate can be configured to function as an actual Cond-window when a related RS location exists.

[0215] For example, specific conditions determining the relationship between the above RS occupation and the Cond-window may be set so that a method based on relative positions determined in the time domain is used. Specifically, for example, the following structures may be used.

[0216] (Method #2-1) For example, an RS occupancy that is related to a specific Cond-window can be determined as the RS occupancy closest to the starting point of the Cond-window among the RS occupations preceding that Cond-window.

[0217] (Method #2-2) For example, an RS occupancy that is related to a specific Cond-window may be defined as the closest RS occupancy among those preceding a position that is a certain size gap ahead of the starting point of the Cond-window. In this case, for example, the size of the gap may be determined by including a parameter explicitly set for this purpose in the configuration information, or by implicitly calculating it based on other parameters, and / or by a convention set in the standard.

[0218] (Method #2-3) For example, an RS occupation associated with a specific Cond-window may be defined as all RS occupations among those preceding the Cond-window that are located within a certain time domain from the starting position of the Cond-window. In this case, for example, the size of the certain time domain may be determined by including a parameter explicitly set for this purpose in the configuration information, or by implicitly calculating it based on other parameters, and / or by a convention defined in the standard.

[0219] (Method #2-4) For example, RS occupations related to a specific Cond-window may be defined as all RS occupations located within a certain time domain based on a position that is a certain gap ahead of the starting point of the Cond-window among the RS occupations preceding the said Cond-window. In this case, for example, the size of the gap may be determined by a parameter explicitly set for this purpose being included in the configuration information, or by being implicitly calculated by other parameters, and / or by a convention set in the standard. Additionally, for example, the size of the certain time domain may be determined by a parameter explicitly set for this purpose being included in the configuration information, or by being implicitly calculated by other parameters, and / or by a convention set in the standard.

[0220] (Method #2-1a) For example, an RS occupancy that is related to a specific Cond-window can be defined as the RS occupancy closest to the start (or end) time of the Cond-window among the RS occupies after the start (or end) time of the Cond-window.

[0221] (Method #2-2a) For example, an RS occupancy that is related to a specific Cond-window may be determined as the nearest RS occupancy among subsequent RS occupancy located at a position that is a certain size gap away from the start (or end) point of the said Cond-window. In this case, for example, the size of the gap may be determined by including a parameter explicitly set for this purpose in the configuration information, or by implicitly calculating it based on other parameters, and / or by a convention set in the standard.

[0222] (Method #2-3a) RS occupations associated with a specific Cond-window may be defined as all RS occupations located within a certain time region from the start (or end) position of the Cond-window among the RS occupations after the start (or end) time of the said Cond-window. In this case, for example, the size of the certain time region may be determined by including a parameter explicitly set for this purpose in the configuration information, or by implicitly calculating it based on other parameters, and / or by a convention defined in the standard.

[0223] (Method #2-4a) For example, RS occupations associated with a specific Cond-window may be defined as all RS occupations located within a certain time domain based on a position that is separated from the start (or end) time of the Cond-window by a certain size gap. In this case, for example, the size of the gap may be determined by a parameter explicitly set for this purpose being included in the configuration information, or by being implicitly calculated by other parameters, and / or by a convention set in the standard. Additionally, for example, the size of the certain time domain may be determined by a parameter explicitly set for this purpose being included in the configuration information, or by being implicitly calculated by other parameters, and / or by a convention set in the standard.

[0224] For example, the method proposed in this disclosure can also be used as a method for determining Cond-window(s) that form a relationship based on a specific RS occupation, with the opposite operation.

[0225] (Method #2-5) For example, the Cond-window associated with a specific RS occupation can be determined as the Cond-window closest to the RS occupation's timeline among the Cond-windows following the RS occupation.

[0226] (Method #2-6) For example, a Cond-window related to a specific RS occupation may be defined as the nearest Cond-window among subsequent Cond-windows, based on a position located at a certain size gap from the point in time of the RS occupation. In this case, for example, the size of the gap may be determined by including a parameter explicitly set for this purpose in the configuration information, or by implicitly calculating it based on other parameters, and / or by a convention set in the standard.

[0227] (Method #2-7) For example, a Cond-window associated with a specific RS occupation may be defined as all Cond-window(s) among the Cond-windows following that RS occupation that are located within a certain time domain from the point in time of the RS occupation. In this case, for example, the size of the certain time domain may be determined by including a parameter explicitly set for this purpose in the configuration information, or by implicitly calculating it based on other parameters, and / or by a convention defined in the standard.

[0228] (Method #2-8) For example, a Cond-window associated with a specific RS occupation may be defined as all Cond-window(s) located within a certain time domain relative to a position that is separated from the point in time of the RS occupation by a certain size gap among the Cond-windows that follow the RS occupation. In this case, for example, the size of the gap may be determined by a parameter explicitly set for this purpose being included in the configuration information, or by being implicitly calculated by other parameters, and / or by a convention set in the standard. Additionally, for example, the size of the certain time domain may be determined by a parameter explicitly set for this purpose being included in the configuration information, or by being implicitly calculated by other parameters, and / or by a convention set in the standard.

[0229] (Method #2-5a) For example, the Cond-window associated with a specific RS occupation can be determined as the Cond-window closest to the RS occupation from the time point of the RS occupation among the Cond-windows preceding that RS occupation.

[0230] (Method #2-6a) For example, a Cond-window related to a specific RS occupation may be defined as the closest Cond-window among those preceding a position that is a certain size gap ahead of the point in time of the RS occupation. In this case, for example, the size of the gap may be determined by including a parameter explicitly set for this purpose in the configuration information, or by implicitly calculating it based on other parameters, and / or by a convention set in the standard.

[0231] (Method #2-7a) For example, a Cond-window associated with a specific RS occupation may be defined as all Cond-window(s) prior to that RS occupation that are located within a certain time domain from the point in time of the RS occupation. In this case, for example, the size of the certain time domain may be determined by including a parameter explicitly set for this purpose in the configuration information, or by implicitly calculating it based on other parameters, and / or by a convention defined in the standard.

[0232] (Method #2-8a) For example, a Cond-window associated with a specific RS occupation may be defined as all Cond-window(s) located within a certain time domain relative to a position that is a certain gap ahead of the RS occupation among the preceding Cond-windows. In this case, for example, the size of the gap may be determined by a parameter explicitly set for this purpose being included in the configuration information, or by being implicitly calculated by other parameters, and / or by a convention set in the standard. Additionally, for example, the size of the certain time domain may be determined by a parameter explicitly set for this purpose being included in the configuration information, or by being implicitly calculated by other parameters, and / or by a convention set in the standard.

[0233] For example, the method proposed in the above-described Method #2 provides a structure that allows the configuration of RS locations and Cond-windows to be performed individually, thereby providing degrees of freedom to the base station in that each location suitable for the RS location and Cond-window can be determined individually. Furthermore, for example, if there are multiple configurations for RS locations and / or multiple configurations for Cond-windows, benefits in terms of signaling overhead can also be expected, as there is no need for information to be provided redundantly when different RS locations (or Cond-windows) share a Cond-window (or RS location).

[0234] (Method #3) A method in which configuration information of RS occupancy and / or configuration information of Cond-window includes information defining the object of the relationship.

[0235] For example, in Method #3, configuration information for RS occupations and Cond-windows may be provided individually as in Method #2 above, and cases where multiple RS occupations are configured and multiple Cond-windows are configured may be considered.

[0236] For example, the configuration of each RS occupation may include information for distinguishing RS occupations (hereinafter referred to as RSO-ID). For example, if an RSO-ID is included in the configuration information of an RS occupation, the configuration information of a Cond-window may include information(s) of RSO-IDs that can form a relationship. For example, when a terminal receiving configuration information based thereon determines an RS occupation that can form a relationship with a specific Cond-window, it may decide to consider only the RS occupation(s) corresponding to the RSO-ID included in the configuration information of the said Cond-window, and to assume that RS occupations that do not match cannot form a relationship.

[0237] Alternatively, for example, a Cond-window may include information for distinguishing Cond-windows (hereinafter referred to as CW-ID). For example, if a CW-ID is included in the Cond-window configuration information, the configuration information of an RS occupation may include information(s) regarding CW-IDs that can form a relationship. For example, when a terminal receiving configuration information based thereon determines a Cond-window that can form a relationship with a specific RS occupation, it may decide to consider only the Cond-window(s) corresponding to the CW-ID included in the configuration information of the RS occupation, and to assume that other Cond-windows cannot form a relationship.

[0238] For example, the RSO-ID may be information of an index assigned to an RS occupancy, or the RSO-ID may be information of a type assigned to an RS occupancy. For example, the CW-ID may be information of an index assigned to a Cond-window, or the CW-ID may be information of a type assigned to a Cond-window.

[0239] For example, the method proposed in Method #3 can be used in combination with other methods. For example, Method #3 can be used in combination with Method #2, in which case the RS occupation and Cond-window can be determined such that among the combinations of RS occupation and Cond-window that can be related according to the conditions of Method #3, the combination of RS occupation and Cond-window that are related to each other is determined based on the relative position determined in the time domain according to Method #2.

[0240] For example, the method proposed in Method 3 can provide an advantage in that it provides a device that can distinguish the type of event for which actual Cond-RS transmission can be expected on a specific RS occupancy, thereby enabling the base station to distinguish the purpose of each RS occupancy and control whether actual Cond-RS transmission is received.

[0241] [Proposal #4] Search space generating events on the Cond-window and RNTI conditions

[0242] In the method proposed in the present disclosure, events expected on the Cond-window may be achieved by using one or more of the following methods in combination.

[0243] (Method #1) A method in which one or more expected events are used on the Cond-window

[0244] For example, when the method proposed in this disclosure is used, there may be one or more conditions for generating an event on a single Cond-window. Specifically, for example, if the event is the detection of a specific DCI format in which the CRC is scrambled with a specific RNTI in a specific search space, one or more search spaces, RNTIs, and / or DCI formats of the target may be expected. For example, the above event may include search spaces, RNTI and / or DCI formats that the terminal can expect to receive in an IDLE / INACTIVE state, and specific examples may include P-RNTI and DCI formats that can be expected to be received in a search space for paging purposes, RA-RNTI and DCI formats that can be expected to be received in a search space for RACH purposes, and / or SI-RNTI and DCI formats that can be expected in a search space for SIB reception purposes.

[0245] For example, if there are multiple such events, the types of the events may follow criteria agreed upon by the standard, or may be set / instructed through higher layer signal information (e.g., SIB or dedicated RRC) provided by the base station.

[0246] For example, the method proposed in Method #1 above may provide an advantageous effect in terms of expanding the range of benefits provided by the proposal of the present disclosure by allowing the application of the proposal of the present disclosure to various events. In addition, for example, there may be an advantage in that overhead caused by the transmission and reception of the Cond-RS can be saved by allowing the transmission and reception of the Cond-RS to be shared when multiple events occur simultaneously by sharing the same RS occupancy for different events occurring on a single Cond-window.

[0247] (Method #2) A method to support different expected events on each Cond-window

[0248] For example, when the method proposed in this disclosure is used, if a plurality of Cond-windows are configured, the conditions for generating events on each Cond-window may differ. For example, the Cond-window corresponding to events related to paging and the Cond-window corresponding to events related to RACH may be determined to be different from each other.

[0249] For example, the method proposed in Method #2 above may be advantageous for the purpose of adjusting the actual Cond-RS transmission and reception situation on the RS occupation to suit each event by setting Cond-windows of different periods / lengths when the characteristics of each event are different. In addition, for example, when different Cond-windows share the same RS occupation, it may be useful in terms of providing a mechanism that can adjust the conditions under which an event occurs for each event while maintaining the benefits of Cond-RS overhead saving provided in Method #1 above.

[0250] (Method #3) A method to support related RS occupations differently depending on different events expected on a single Cond-window

[0251] For example, when the method proposed in this disclosure is used, if multiple RS applications can be related to a single Cond-window, the configuration of RS applications that can expect to receive RS can be determined to be different depending on the event occurring on the Cond-window. In this case, for example, a structure may be used in which all or part of the RS applications related to one event become a subset of the RS applications related to another event. For example, the RS applications corresponding to events related to paging and the RS applications corresponding to events related to RACH can be determined to be different from each other.

[0252] For example, the method proposed in Method #3 above may be advantageous for the purpose of adjusting the actual transmission and reception situation of the Cond-RS to each event by setting up RS occupations configured with different locations and / or Cond-RS when the characteristics of each event differ. For example, it may be useful when the requirements for the gap between the occurrence of an event and the location of the RS occupation differ for each event, or when the required density of the Cond-RS differs for each event, it may be advantageous for the purpose of appropriately adjusting the transmission and reception overhead of the Cond-RS by providing a high-density Cond-RS only under the conditions of a specific event.

[0253] [Proposal #5] Configuration of Cond-RS

[0254] When the method proposed in this disclosure is used, the Cond-RS transmitted and received over the RS occupancy can be configured to transmit and receive signals agreed upon between the base station and the terminal. In this case, for example, the signal used as Cond-RS may be configured to follow rules agreed upon by a standard, or to follow information contained in a higher layer signal (e.g., SIB or dedicated RRC) configured by the base station and signaling to the terminal. Specifically, for example, a form combining one or more of the following methods may be used for the signal used as Cond-RS.

[0255] (Method #1) A Cond-RS that can be expected to be received on an RS occupancy may be configured to use a signal based on an SSB that is periodically transmitted and received by the cell or carrier. Here, for example, SSB is a term referring to a unit of a set of synchronization signals in which PSS, SSS, and PBCH are transmitted, and refers to a signal transmitted periodically for the purpose of cell search or synchronization, and may be a concept corresponding to SSB based on the 5G NR standard. For example, when a next-generation wireless communication system such as 6G is used, the SSB in the proposal of this disclosure may be a concept that includes some of PSS, SSS, and PBCH. For example, the use of a signal based on an SSB may mean that it has the same form as the periodically transmitted SSB, and if such a structure has a structure in which the period of the SSB is adjusted for purposes such as NES, a form may be used in which the locations of the SSBs that are not transmitted within the interval where some SSBs are not transmitted for the purpose of NES are utilized as RS occupancy. Alternatively, for example, the use of a signal based on an SSB may mean that a modified form of the periodically transmitted SSB may be used, which may be used in a form that includes or removes differentiated information for the purpose of preventing the Cond-RS, whose transmission status is determined by an event on the RS occupation, from being detected by a terminal attempting a cell search, or to indicate that it is not a periodic SSB transmission even if detected.

[0256] (Method #2) The Cond-RS that can be expected to be received on the RS occupancy may be configured to use a signal set for a purpose separate from the SSB. In this case, for example, the signal set for a separate purpose may refer to a signal different from the SSB described in the previous example, and for example, an RS for tracking purposes (e.g., TRS) may be used. This may be intended to provide a structure useful for managing resource overhead by relatively reducing the time / frequency resources occupied by the structure of the SSB-based signal, or conversely, to provide a structure advantageous for providing improved performance in terms of time / frequency tracking by increasing them.

[0257] [Proposal #6] Handling the Invalidation of Specific RS Occupations

[0258] When the method proposed in the present disclosure is used, some of the periodically set RS occupations that meet specific conditions may be determined so that transmission and reception of Cond-RS cannot always be expected. Specifically, for example, the specific conditions may include cases adjacent to the transmission of another specific periodic RS, and for RS occupations where such specific conditions are satisfied, the base station may not transmit Cond-RS even if an event occurs on the Cond-window associated with it, and the terminal may be determined not to expect reception of Cond-RS in response to the event.

[0259] Specifically, for example, the specific periodic RS mentioned above may be a synchronization signal that is periodically transmitted and received, and may be a signal corresponding to an SSB based on 5G NR. For example, in next-generation wireless communication systems such as 6G, this may be a signal that performs the same or similar role as an SSB in 5G NR, and may be a signal that has the characteristics of an always-on signal that is always expected to be transmitted and received, and can be used for purposes such as synchronization and / or cell search.

[0260] In a specific structure to which the method proposed in this disclosure can be applied, it can be determined that transmission and reception of Cond-RS according to an event are not expected in RS occupations located within the interval of T1ms (or N1 slots / symbols) preceding the point in time when a specific periodic signal is transmitted or received, and T2ms0 (or N2 slots / symbols) following. This can provide an advantageous effect in that, when there exists a time / frequency interval in which the terminal expects the transmission of other RS ​​signals to be received and used in addition to Cond-RS, the base station prevents the transmission of Cond-RS, thereby reducing resource overhead caused by RS transmission.

[0261] [Proposal #7] Method to support expecting Cond-RS transmission and reception on a specific RS occupation regardless of whether an event occurs

[0262] When the method proposed in this disclosure is used, for RS occupation(s) that satisfy a specific condition, it can be determined that transmission and reception of Cond-RS can be expected even if no event occurs on the related Cond-window. Specifically, for example, the specific condition may be a case where transmission and reception of Cond-RS are instructed to be enabled / activated / triggered through separate signaling. For example, the separate signaling above may be a PDCCH that can be transmitted and received on a search space monitored by an idle / inactive terminal, and specifically, may include activation / trigger instruction information of the Cond-RS through a DCI transmitted and received on a search space monitored during a paging procedure (e.g., a paging search space or a PEI search space), or may include activation / trigger instruction information of the Cond-RS through a DCI transmitted and received on a search space monitored for scheduling system information.

[0263] For example, if the indicated information is activation information, the base station may transmit Cond-RS at specific agreed RS occupations on an agreed or set interval based on the activation time, and the terminal may be configured to expect reception of Cond-RS. In this case, for example, the specific agreed RS occupations may be all RS occupations configured for the terminal, or may correspond to some of the RS occupations configured for the terminal. For example, the agreed or set interval may be configured to be maintained for a predetermined length and / or the end time may be determined based on the time when a separate deactivation signaling is transmitted or received. Or, for example, if the indicated information is trigger information, the trigger may be configured to expect transmission or reception of Cond-RS on RS occupations corresponding to the signaling indicated. This can be used as a useful device to support cases where a base station wishes to schedule the transmission and reception of Cond-RS on a configured RS occupancy regardless of whether an event has occurred. For example, when RS transmission for a connected terminal takes place on an RS occupancy, it can be advantageous in improving the utilization of given resources by allowing idle / inactive terminals to use it. Furthermore, it can be useful in terms of achieving higher performance in operations such as channel estimation or tracking by providing, for instance, the opportunity to use RS with guaranteed transmission and reception from the terminal's perspective.

[0264] [Proposal #8] A method in which a single RS occupation is composed of a set of sub-RS occupations

[0265] When the method proposed in the present disclosure is used, one RS occupation may be composed of a set of multiple sub-RS occupations. In this case, for example, each one sub-RS occupation may be configured to have a spatial relation with one RS. For example, when N synchronization signals (e.g., SSBs) are operated within a cell or carrier, the number of sub-RS occupations may be configured to be N, and each sub-RS occupation may be configured to have a spatial relation by corresponding one-to-one with the N synchronization signals.

[0266] For example, when the method proposed in this disclosure is used, if a terminal detects a specific event, the terminal may be configured to expect reception of a Cond-RS on a sub-RS occupancy having a spatial relation to a beam index agreed upon / set for the signal / channel where the event occurred, and may be configured not to expect reception of other sub-RS occupancy on an RS occupancy including the said sub-RS occupancy unless there are other conditions. This may be configured to apply only to specific event(s) among the total events expected by the terminal. For example, in the case of a PDCCH that the terminal expects to receive during a RACH procedure, the spatial relation may be determined based on the beam index corresponding to the Msg1 (or MsgA) transmitted by the terminal, and the base station may be configured to transmit only the Cond-RS useful for reception corresponding to this, thereby providing an advantageous effect in that it can prevent the occurrence of unnecessary resource overhead.

[0267] For example, when the method proposed in this disclosure is used, if a terminal detects a specific event, the terminal may be configured to expect reception of Cond-RS in all sub-RS occupations on an RS occupation that includes a sub-RS occupation having a spatial relation to the beam index agreed upon / set for the signal / channel where the event occurred. This may be configured to apply only to specific event(s) among the total events expected by the terminal. For example, in cases where the base station does not know information regarding a spatial relation advantageous to any terminal, such as in paging, it may be configured to transmit Cond-RS related to various spatial relations, which may serve as an advantageous device for providing Cond-RS for all beam directions.

[0268] [Proposal #9] A method that supports signaling to notify of event occurrence in advance

[0269] When the method proposed in this disclosure is used, a method in which an early-indication signaling indicating whether an event has occurred on the Cond-window may be used prior to the Cond-window and the RS occupies associated therewith may be used together. For example, the early-indication signaling may be a signaling for paging indication purposes, such as LP-WUS or PEI introduced in 5G NR. For example, if a terminal succeeds in receiving the early-indication signaling, the terminal may expect to receive Cond-RS on the RS occupies associated with the Cond-window where the indicated event occurs, only if the terminal has been indicated by the early-indication signaling that an event will occur. For example, if a terminal successfully receives an early-indication signaling but the signaling does not indicate the occurrence of an event, the terminal may be configured not to expect the reception of the corresponding Cond-RS. This can be useful in that if the terminal knows in advance whether a specific event will occur, it can definitively know the occurrence of the Cond-RS corresponding to that event, thereby enabling it to take actions that are advantageous for operations related to that event.

[0270] [Proposal #10] Structure where Cond-window is not set

[0271] The method proposed in this disclosure may be applied in situations where a Cond-window is not set. Specifically, for example, this can be considered equivalent to the implicit operation constituting the method in the proposal and method of this disclosure described above, where the starting point of the Cond-window is determined as a position relative to the RS occupation and the ending point is determined as a position relative to the next RS occasion.

[0272] For example, as one example in which the operation of the method and apparatus proposed in this disclosure can be specifically applied, a paging reception procedure of a terminal may be considered. For example, if the terminal succeeds in detecting a paging DCI on a specific Paging Occasion (PO), and the said PO is located in a specific Cond-window, the terminal may assume that a Cond-RS has been transmitted on an RS occupation(s) associated with the said Cond-window. For example, when a base station transmits a paging DCI to a PO(s) located within a specific Cond-window, the base station may decide to transmit a Cond-RS together on an RS occupation(s) associated with the said Cond-window. Specifically, for example, the Cond-RS used in this case may be an SSB or a TRS (Tracking Reference Signal).

[0273] Alternatively, for example, as one example to which the operation of the method and apparatus proposed in this disclosure can be specifically applied, a RAR reception procedure of a terminal may be considered. For example, if the terminal succeeds in detecting a DCI for the purpose of RAR reception on a specific RAR window, and the reception of said DCI occurs within a specific Cond-window, the terminal may assume that a Cond-RS has been transmitted on an RS occupation(s) associated with said Cond-window. For example, if a base station transmits a DCI for the purpose of RAR within a specific Cond-window, the base station may determine to transmit a Cond-RS together on an RS occupation(s) associated with said Cond-window. Specifically, for example, the Cond-RS used in this case may be an SSB or a TRS (Tracking Reference Signal).

[0274] Alternatively, for example, as one example to which the operation of the method and apparatus proposed in this disclosure can be specifically applied, a procedure for receiving an SIB by a terminal may be considered. For example, if the terminal succeeds in detecting a DCI for the purpose of receiving an SIB, and the reception of the said DCI occurs within a specific Cond-window, the terminal may assume that a Cond-RS has been transmitted on an RS occupation(s) associated with said Cond-window. For example, if a base station transmits a DCI for the purpose of SIB scheduling within a specific Cond-window, the base station may determine to transmit a Cond-RS together on an RS occupation(s) associated with said Cond-window. Specifically, for example, the Cond-RS used in this case may be an SSB or a TRS (Tracking Reference Signal).

[0275] Alternatively, for example, as one example to which the operation of the method and apparatus proposed in this disclosure can be specifically applied, a procedure for receiving Paging Early Indication (PEI) by a terminal may be considered. For example, if the terminal succeeds in detecting a DCI for PEI purposes, and the reception of said DCI occurs within a specific Cond-window, the terminal may assume that a Cond-RS has been transmitted on an RS occupation(s) associated with said Cond-window. For example, if a base station transmits a DCI for PEI purposes within a specific Cond-window, the base station may determine to transmit a Cond-RS together on an RS occupation(s) associated with said Cond-window. Specifically, for example, the Cond-RS used in this case may be an SSB or a Tracking Reference Signal (TRS).

[0276] Alternatively, for example, as one of the examples to which the operation of the method and apparatus proposed in this disclosure can be specifically applied, a procedure for receiving an LP-WUS of a terminal may be considered. For example, if the terminal succeeds in detecting an LP-WUS, and the reception of the LP-WUS occurs within a specific Cond-window, the terminal may assume that a Cond-RS has been transmitted on an RS occupation(s) associated with the said Cond-window. For example, if a base station transmits an LP-WUS within a specific Cond-window, the base station may determine to transmit a Cond-RS together with it on an RS occupation(s) associated with the said Cond-window. Specifically, for example, the Cond-RS used in this case may be a synchronization signal (e.g., LP-SS) provided in consideration of the LP-WUS reception method and the apparatus supporting it.

[0277] Alternatively, for example, as one of the examples to which the operation of the method and apparatus proposed in this disclosure may be specifically applied, a transmission and reception procedure in which monitoring of a PO indicated by a PEI (or LP-WUS) is determined may be considered. For example, if a terminal succeeds in receiving a PEI (or LP-WUS) and is instructed to monitor a specific PO through it, and if said PO is located in a specific Cond-window, the terminal may assume that a Cond-RS will be transmitted on an RS occupation(s) associated with said Cond-window. In this case, for example, even if the terminal fails to detect a paging DCI on the specific PO to be monitored, the terminal may still be able to maintain the assumption of receiving a Cond-RS. For example, if a base station transmits a PEI (or LP-WUS) containing information instructing the performance of monitoring for a specific PO, and the PO is located on a specific Cond-window, the base station may determine to transmit a Cond-RS together on the RS occupancy(s) associated with the Cond-window. Specifically, for example, the Cond-RS used in this case may be an SSB or a TRS (Tracking Reference Signal).

[0278] Alternatively, for example, as one of the examples to which the operation of the method and apparatus proposed in this disclosure can be specifically applied, a situation may be considered in which one or more of a paging DCI, a DCI for RAR reception, and a DCI for SIB reception occur on a single Cond-window. For example, if a terminal succeeds in detecting one or more of a paging DCI, a DCI for RAR reception, and a DCI for SIB reception on a specific Cond-window, the terminal may assume the reception of a Cond-RS on an RS occupation(s) associated with that Cond-window. For example, when a base station transmits one or more of a paging DCI, a DCI for RAR reception, and a DCI for SIB reception on a specific Cond-window, it may determine to transmit a Cond-RS together on an RS occupation(s) associated with that Cond-window. Specifically, for example, the Cond-RS used at this time may be an SSB or a TRS (Tracking Reference Signal).

[0279] Meanwhile, when the methods proposed in this disclosure are applied to a wireless communication system in which transmission and reception between a base station and a terminal are controlled by an upper node (e.g., a base station), such as 6G, examples of procedures and operations for the terminal and the base station to perform the proposed methods may be as follows. In the following description, the entity controlling transmission and reception between two nodes is described using the term "base station," but those skilled in the art will understand that the operations described in the following embodiments may be applied even if the entity is not a base station, that is, if one node performs the role of controlling transmission and reception between two nodes.

[0280] FIG. 13 illustrates an example in which a terminal performs an operation related to Cond-RS according to one embodiment of the present disclosure. The embodiment of FIG. 13 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, proposals, methods, and / or operations of the embodiments may be omitted.

[0281] Referring to FIG. 13, in step S1301, the terminal may receive information from the base station for receiving Cond-RS. For example, the information may include information regarding RS occupancy, Cond-window, and Cond-RS. For example, the information may be received via a higher layer signal, such as SIB or dedicated RRC signaling transmitted by the base station. In step S1302, the terminal may perform an operation to receive Cond-RS on an RS occupancy determined based on the received information. For example, the terminal may perform operations such as time / frequency tracking or measurement operations based on the received information. In step S1303, the terminal may monitor whether an event has occurred on the Cond-window. At this time, for example, the Cond-window of step S1303 can be determined as a location that forms a relationship with the Cond-window of step S1302. For example, if the Cond-window occurs after the RS occupation that forms a relationship, the terminal can utilize the result of receiving the Cond-RS in step S1302 for the event monitoring operation of step S1303. In step S1304, the terminal can determine whether an event has been detected based on the monitoring result performed in step S1303. For example, if the terminal succeeds in detecting an event (step S1305), the terminal can utilize and maintain the Cond-RS received in step S1302 for transmission and reception operations.

[0282] For example, Figure 13 shows an example of the sequence in which step S1303 is performed after step S1302 is performed, but if the occurrence of a specific Cond-window precedes the occurrence of a related RS occupation, step S1303 may be performed before step S1302.

[0283] For example, the method described in FIG. 13 may be performed by the first device (100) of FIG. 25. For example, one or more processors (102) of the first device (100) of FIG. 25 may be configured to perform the operation according to FIG. 13. Additionally, for example, one or more memories (104) of the first device (100) may store instructions for performing the method in the example of FIG. 13 or in the various proposals of the present disclosure described above when executed by one or more processors (102).

[0284] FIG. 14 illustrates an example of a base station performing an operation related to Cond-RS according to one embodiment of the present disclosure. The embodiment of FIG. 14 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, proposals, methods, and / or operations of said embodiments may be omitted.

[0285] Referring to FIG. 14, in step S1401, the base station may determine the configuration related to the Cond-RS. In step S1402, the base station may transmit information related to the Cond-RS determined in step S1401 to the terminal. At this time, for example, the information may include information regarding the RS occupancy, the Cond-window, and the Cond-RS. For example, the information may be transmitted by the base station via a higher layer signal, such as an SIB or dedicated RRC signaling.

[0286] In step S1403, if the base station intends to generate an event for a condition to transmit Cond-RS on a specific Cond-window (e.g., to perform transmission of a specific signal / channel), it may transmit Cond-RS on an RS occupation associated with the said Cond-window. In step S1404, the base station may generate an event on a Cond-window associated with the RS occupation where the Cond-RS was transmitted.

[0287] For example, Figure 14 shows an example of the sequence in which step S1404 is performed after step S1403 is performed, but if the occurrence of a specific Cond-window precedes the occurrence of a related RS occupation, step S1404 may be performed before step S1403.

[0288] For example, the method described in FIG. 14 may be performed by the second device (200) of FIG. 25. For example, one or more processors (202) of the second device (200) of FIG. 25 may be configured to perform the operation according to FIG. 14. Additionally, for example, one or more memories (204) of the second device (200) may store instructions for performing the method in the example of FIG. 14 or in the various proposals of the aforementioned disclosure when executed by one or more processors (202).

[0289] FIG. 15 illustrates a method in which a first device performs wireless communication according to one embodiment of the present disclosure. The embodiment of FIG. 15 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, suggestions, methods, and / or operations of the embodiments may be omitted.

[0290] Referring to FIG. 15, in step S1510, the first device can obtain information related to a first reference signal occasion. In step S1520, the first device can perform detection of at least one event within a first window related to the first reference signal occasion. In step S1530, the first device can determine that a reference signal has been received on the first reference signal occasion based on the detection of the at least one event within the first window.

[0291] For example, (i) one or more windows are set up in relation to the first reference signal occupation, and (ii) based on the detection of at least one event within the first window among the one or more windows, it may be determined that the reference signal has been received on the first reference signal occupation.

[0292] For example, (i) one or more reference signal occupations including the first reference signal occupation are set in relation to the first window, and (ii) based on the detection of at least one event within the first window, it may be determined that a reference signal has been received for each of the one or more reference signal occupations.

[0293] For example, the start of the first window may be set to at least one of (i) the first symbol after the last symbol associated with the first reference signal occlusion, (ii) the first symbol after the gap interval from the last symbol associated with the first reference signal occlusion, or (iii) the symbol before the gap interval from the last symbol associated with the first reference signal occlusion.

[0294] For example, the end of the first reference signal occupation may be set to at least one of (i) the first symbol prior to the start symbol of the first window, (ii) the symbol prior to the gap interval from the start symbol of the first window, or (iii) the first symbol after the gap interval from the start symbol of the first window.

[0295] For example, the first reference signal occupation may be at least one of the following among one or more reference signal occupations associated with the first window: (i) the reference signal occupation closest to the start of the first window, (ii) the reference signal occupation closest to the gap interval set before the start of the first window, (iii) the reference signal occupation included within the time interval before the start of the first window, or (iv) the reference signal occupation included within the time interval before the gap interval set before the start of the first window.

[0296] For example, the first window may be at least one of the following among one or more windows associated with the first reference signal occupation: (i) the window closest to the first reference signal occupation, (ii) the window closest to the gap interval set after the first reference signal occupation, (iii) the window included within the time interval after the first reference signal occupation, or (iv) the window included within the time interval after the gap interval set after the first reference signal occupation.

[0297] Additionally, for example, the first device may obtain information related to the first window. For example, the first reference signal occupation related to the first window may be determined based on whether identifier information related to the first reference signal occupation among one or more reference signal occupations matches identifier information related to the reference signal occupation included in the information related to the first window.

[0298] Additionally, for example, the first device may obtain information related to the first window. For example, the first window related to the first reference signal occupation may be determined based on whether identifier information related to the first window among one or more windows matches identifier information related to a window included in information related to the first reference signal.

[0299] For example, based on the fact that the first reference signal location is located within a threshold time interval set based on the reception time of a periodic reference signal, it may be determined that the reception of the reference signal on the first reference signal location is invalid.

[0300] For example, based on the fact that the first reference signal occupation includes a plurality of sub-reference signal occupations, it may be determined that the reference signal is received on the first sub-reference signal occupation that has a spatial relation with a beam index set for a signal or channel associated with the detection of at least one event among the plurality of sub-reference signal occupations.

[0301] For example, the detection of at least one event may be at least one of (i) detection of downlink control information (DCI) related to P-RNTI (Paging-Radio Network Temporary Identifier) ​​in a search space related to paging, (ii) detection of DCI related to RA-RNTI (Random Access-Radio Network Temporary Identifier) ​​in a search space related to random access, or (iii) detection of DCI related to SI-RNTI (System Information-Radio Network Temporary Identifier) ​​in a search space related to system information reception.

[0302] For example, based on one or more windows being set up in relation to the first reference signal occupation, the type of event expected to be detected on the first window among the one or more windows and the type of event expected to be detected on the second window may be different.

[0303] The proposed method above may be applied to a device according to various embodiments of the present disclosure. First, a processor (102) of a first device (100) may control a transceiver (106) to obtain information related to a first reference signal occasion. Then, the processor (102) of the first device (100) may perform detection of at least one event within a first window related to the first reference signal occasion. Then, the processor (102) of the first device (100) may determine that a reference signal has been received on the first reference signal occasion based on the detection of the at least one event within the first window.

[0304] According to one embodiment of the present disclosure, a first device configured to perform wireless communication may be provided. For example, the first device may include at least one transceiver; at least one processor; and at least one memory connected to the at least one processor and storing instructions. For example, based on the instructions executed by the at least one processor, the first device may: acquire information related to a first reference signal occasion; perform detection of at least one event within a first window related to the first reference signal occasion; and determine that a reference signal has been received on the first reference signal occasion based on the detection of the at least one event within the first window.

[0305] According to one embodiment of the present disclosure, a processing device configured to control a first device may be provided. For example, the processing device may include at least one processor; and at least one memory connected to the at least one processor and storing instructions. For example, based on the instructions executed by the at least one processor, the first device may: acquire information related to a first reference signal occasion; perform detection of at least one event within a first window related to the first reference signal occasion; and determine that a reference signal has been received on the first reference signal occasion based on the detection of the at least one event within the first window.

[0306] According to one embodiment of the present disclosure, a non-transient computer-readable storage medium recording instructions may be provided. For example, when the instructions are executed, the first device may: acquire information related to a first reference signal occasion; perform detection of at least one event within a first window related to the first reference signal occasion; and determine that a reference signal has been received on the first reference signal occasion based on the detection of the at least one event within the first window.

[0307] FIG. 16 illustrates a method in which a second device performs wireless communication according to one embodiment of the present disclosure. The embodiment of FIG. 16 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, suggestions, methods, and / or operations of the embodiments may be omitted.

[0308] Referring to FIG. 16, at step S1610, the second device may transmit information related to a first reference signal occasion to the first device. At step S1620, the second device may transmit information related to a first window to the first device. At step S1630, the second device may transmit a reference signal on the first reference signal occasion to the first device. For example, based on the detection by the first device of at least one event within the first window related to the first reference signal occasion, the reception of the reference signal on the first reference signal occasion may be determined to be valid.

[0309] The proposed method above may be applied to a device according to various embodiments of the present disclosure. First, the processor (202) of the second device (200) may control the transceiver (206) to transmit information related to a first reference signal occasion to the first device. Then, the processor (202) of the second device (200) may control the transceiver (206) to transmit information related to a first window to the first device. Then, the processor (202) of the second device (200) may control the transceiver (206) to transmit a reference signal on the first reference signal occasion to the first device. For example, based on the detection of at least one event within the first window related to the first reference signal occasion by the first device, the reception of the reference signal on the first reference signal occasion may be determined to be valid.

[0310] According to one embodiment of the present disclosure, a second device configured to perform wireless communication may be provided. For example, the second device may include at least one transceiver; at least one processor; and at least one memory connected to the at least one processor and storing instructions. For example, based on the instructions executed by the at least one processor, the second device may cause: to transmit information related to a first reference signal occasion to the first device; to transmit information related to a first window to the first device; and to transmit a reference signal on the first reference signal occasion to the first device. For example, based on the detection by the first device of at least one event within the first window related to the first reference signal occasion, the reception of the reference signal on the first reference signal occasion may be determined to be valid.

[0311] According to one embodiment of the present disclosure, a processing device configured to control a second device may be provided. For example, the processing device may include at least one processor; and at least one memory connected to the at least one processor and storing instructions. For example, based on the instructions executed by the at least one processor, the second device may cause: to transmit information related to a first reference signal occasion to the first device; to transmit information related to a first window to the first device; and to transmit a reference signal on the first reference signal occasion to the first device. For example, based on the detection by the first device of at least one event within the first window related to the first reference signal occasion, the reception of the reference signal on the first reference signal occasion may be determined to be valid.

[0312] According to one embodiment of the present disclosure, a non-transient computer-readable storage medium recording instructions may be provided. For example, when the instructions are executed, the second device may cause the first device to transmit information related to a first reference signal occasion; the first device to transmit information related to a first window; and the first device to transmit a reference signal on the first reference signal occasion. For example, based on the detection by the first device of at least one event within the first window related to the first reference signal occasion, the reception of the reference signal on the first reference signal occasion may be determined to be valid.

[0313] According to various embodiments of the present disclosure, even if the period of the always-on signal is set long, the terminal can provide the transmission and reception of the RS required for a specific transmission and reception operation at a location adjacent to the time of occurrence of the transmission and reception, thereby providing an advantageous effect in that it can guarantee the base station's NES gain and simultaneously guarantee the terminal's UPS gain. Furthermore, for example, since the transmitted and received Cond-RS may be assumed to be transmitted and received only when necessary, it can provide an advantageous effect in that it can prevent unnecessary energy consumption and resource overhead waste of the base station. Additionally, for example, by providing a device that allows one or more events to share the same RS occupancy, the amount of Cond-RS generated can be relatively reduced even if multiple different events occur, thereby providing an advantageous effect in terms of the base station's NES gain and resource overhead saving.

[0314] Furthermore, according to the proposal of the present disclosure, the terminal can more clearly determine the validity of receiving a specific reference signal based on the relationship between the reference signal occasion and the conditional window and whether an event occurs within the conditional window, thereby enabling the terminal to more accurately distinguish between the reference signal that it actually needs to utilize and the reference signal that it does not. Additionally, according to the proposal of the present disclosure, the terminal can not perform subsequent reception processing, channel estimation, beam management, and / or reception preparation operations for invalid reference signals, or can perform them in a limited manner, thereby reducing the complexity of reception processing and unnecessary internal computational load of the terminal. Furthermore, according to the proposal of the present disclosure, the terminal can more precisely determine whether a reference signal received at a specific reference signal occasion is actually a valid reference signal for the terminal's own operation, thereby enabling it to perform subsequent operations based on unnecessary reference signals or, conversely, mitigate the failure to receive necessary reference signals. In addition, according to the proposal of the present disclosure, the terminal can more clearly recognize the timing of operations related to receiving a reference signal based on a specific window and a specific event, and thus can more efficiently control the timing of reception preparation, reception activation, and / or related RF operations.

[0315] Meanwhile, channel coding involves encoding a signal at the transmitting end and decoding the original signal from the converted signal at the receiving end so that error detection and error correction can be performed at the receiving end during transmission and reception over the channel. Polar code is one of the channel coding techniques and was first introduced and used in the 5G NR standard for the transmission and reception of the UL / DL control channel.

[0316] The design of next-generation wireless communication systems considers objectives such as achieving higher KPIs than current levels, like higher data rates and lower latency, as well as supporting new use cases. In particular, for 6G, which has recently begun to be discussed, requirements for peak data rate, reliability, and latency are expected to be set higher than those for 5G, and new use cases such as ISAC, AI, and communications are also being considered. To satisfy these new requirements and use cases, channel coding techniques also need to evolve.

[0317] A DL control channel is used by a base station to provide the terminal with scheduling information or additional instruction information for UL / DL traffic channels. Generally, the DL control channel pre-configures the types of resources (e.g., search space) and information (e.g., DCI format) that the base station can transmit to the terminal, and the terminal can determine whether the DL control channel is actually transmitted only through a Blind Decoding (BD) process. Additionally, since dynamic scheduling for the transmission and reception of DL control channels, e.g., PDCCH, generally does not precede, the configuration of each DL control channel may include one or more resource type candidates (e.g., PDCCH candidates) to ensure the base station's scheduling freedom, taking into account the terminal's wireless channel environment and the availability of wireless resources. When operating multiple resource type candidates (e.g., PDCCH candidates), it is expected to have a favorable effect in resolving the problem of conflicts in adaptive transmission and reception and scheduling with other signals / channels that are suited to the wireless channel environment of the terminal, but it may result in disadvantages in terms of the complexity and power consumption of the terminal in that more BD operations may be required of the terminal. Therefore, in next-generation wireless communication systems such as 6G, it is necessary to consider the design of an efficient DL control channel to reduce the complexity and power consumption of the terminal.

[0318] In 5G NR, PDCCH candidates consist of 1, 2, 4, 8, or 16 Control Channel Elements (CCEs) depending on the Aggregation Level (AL). Each CCE consists of 6 Resource Element Groups (REGs). In the transmission and reception of PDCCH candidates, the mapping of coded bits is determined through the process of determining the mother code size, which considers the number of available RE resources on the PDCCH candidate, and rate matching. Different PDCCH candidates have different combinations of CCEs, and if the AL is different, the mapped coded bits differ due to differences in the mother code size of the polar code. Therefore, when a PDCCH is transmitted with a specific AL applied, the terminal can only decode it if it uses the same AL, that is, if it uses all the CCEs used. This can act as a factor that hinders the freedom of implementation of the terminal.

[0319] For example, in a wireless communication system that supports various use cases, support for various UE capabilities may be considered depending on the conditions required by each use case. The capability regarding the available bandwidth (BW) of a terminal is one of the factors that must be considered based on the UE capability; in the case of terminals designed for low capability, there are instances where only a narrow bandwidth is supported compared to general terminals. In the case of DL control channels, particularly for channels monitored by multiple terminals in common, such as the Common Search Space (CSS), these limitations on bandwidth capability can cause problems. If the goal is to operate a DL control channel that satisfies energy and latency requirements while meeting the service requirements of general terminals, the configured bandwidth needs to be sufficiently large. Conversely, if the goal is to support terminals with low bandwidth capability, constraints may arise on the bandwidth configured for the DL control channel. In most existing wireless communication systems, such as 5G NR, methods are used to solve this problem by operating a DL control channel based on the lowest BW capability or by operating multiple DL control channels to support different BW capabilities. However, this approach can result in reduced gain for terminals with high BW capabilities or increased network overhead.

[0320] In this disclosure, to overcome the problems and limitations of the aforementioned prior art, a configuration unit of a DL control channel and a coded bit mapping method that provide advantageous effects for transmission and reception are proposed, and a method and device for operating a base station and a terminal for this purpose are proposed.

[0321] Hereinafter, the main concepts of the proposed methods are explained based on polar codes, but those skilled in the art will understand that they are also applicable to other channel coding techniques having a structure in which information is decoded sequentially during the decoding process, such as sequential decoding or successive cancellation decoding.

[0322] In the following disclosure, unless otherwise stated, the main concepts of the proposed methods are described based on SC or SCL decoding. However, the proposed methods are not limited thereto and will be understood by those skilled in the art that they are applicable to other decoding methods where decoding of specific / partial information, such as SC or SCL decoding, can be performed relatively quickly compared to other information.

[0323] FIG. 17 illustrates an example of an encoding structure according to one embodiment of the present disclosure. The embodiment of FIG. 17 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, proposals, methods, and / or operations of the embodiments may be omitted.

[0324] Referring to FIG. 17, 1701 in FIG. 17 represents an information bit sequence of size K, and if the transmission and reception includes a CRC, it can be set as a sequence including a CRC. 1702 in FIG. 17 represents an info-bit allocation process that receives an information bit sequence of length K as input, determines the positions of the information bit and the frozen bit on a sequence of length N, maps the information bit and the frozen bit, and outputs this as an output sequence (1703 in FIG. 17). The output sequence 1703 in FIG. 17 (hereinafter referred to as the encoder input sequence), which is the output sequence produced during the info-bit allocation process, performs the polar encoding process of 1704 in FIG. 17. In the polar encoding process, operations are performed between the input encoder input sequence and an NxN polar encoding matrix, and as a result, a coded bit sequence of length N (1705 in FIG. 17) is output. Subsequently, if necessary, the output coded bit sequence can be rearranged by undergoing a process such as sub-block interleaving (1706 in FIG. 17), which may be intended to create an array of coded bit sequences that is advantageous for rate matching.If the sub-block interleaving process is included, an interleaved coded bit sequence of length N is generated as the output and passed to the next step; if omitted, the coded bit sequence generated in the previous step is used as the input to the next step. Afterwards, in 1708 of FIG. 17, a rate matching operation is performed to convert the input coded bit sequence of length N into the required length, and as a result, a rate-matched coded bit sequence of length E is output.

[0325] The present disclosure proposes a method for configuring a CCE-set with a set of one or more CCEs, a method for performing mapping of coded bits based on the CCE-set, and an apparatus supporting these methods as follows.

[0326] For example, the term CCE as used in this disclosure refers to one of the units of radio resources (e.g., time / frequency domain resources) used as a standard when operating the DL control channel of the physical layer in a wireless communication system. A CCE has a resource size in the time domain (e.g., number of OFDM symbols) and a resource size in the frequency domain (e.g., number of subcarriers / PRBs), and the size in each domain may be agreed upon in advance between the transmitting and receiving ends or set by a single transmitting and receiving entity (e.g., base station). Here, it is assumed that the total number of REs constituting the CCE is always maintained. For example, in 5G NR, a structure of REG is defined having one OFDM symbol and one PRB size, and a CCE is defined as a unit composed of a set of six REGs. The configuration of the CCE involves defining 1 OFDM symbol, 2 OFDM symbols, and 3 OFDM symbols in the time domain, and the CCE resources are configured with sizes of 6 PRB, 3 PRB, and 2 PRB, respectively, in the frequency domain. Although the present disclosure describes methods and apparatus proposed as standards representing the terms and structures of CCE used in 5G NR, the proposed methods are not limited to such terms and structures, and those skilled in the art will understand that the concept of the proposed methods and apparatus is maintained even when the terms of CCE are applied to radio resource units of other terms / structures constituting a DL control channel. For example, the proposed methods may also be applied when a CCE-set is defined as a set of one or more REGs.

[0327] For example, the term CCE-set used in this disclosure refers to one of the units of radio resources (e.g., time / frequency domain resources) used as a standard when operating a DL control channel of the physical layer in a wireless communication system. Characteristically, a CCE-set has a structure composed of one or more CCEs, and its size and location are determined by the number of CCEs constituting the CCE-set and the form in which they are combined, which may be agreed upon in advance between the transmitting and receiving ends or set by a single transmitting and receiving entity (e.g., a base station). Although this disclosure describes the proposed methods using the term CCE-set, the proposed methods are not limited to the terminology, and those skilled in the art will understand that the concept of the proposed methods and devices is maintained even when the term CCE-set is applied to radio resource units of other terms / structures constituting the DL control channel.

[0328] [Method #1] Method of configuring a CCE-set and operation of a device supporting it

[0329] 1. Basic structure of a CCE-set

[0330] The CCE-set proposed in this disclosure consists of a set of one or more CCE(s), and PDCCH transmission in the search space to which the CCE-set applies is performed in a structure in which one or more CCE-sets are combined. The configuration of the CCE-set may be optional, and if the CCE-set is configured, the base station may provide all or part of the information related to the configuration of the CCE-set to the terminal, and / or all or part of the information may be operated in a pre-agreed form (e.g., definition by a standard). In this case, the base station and the terminal perform PDCCH transmission and reception based on the configuration information of the CCE-set. If the CCE-set is not configured, the base station may explicitly notify the terminal that the CCE-set is not configured (e.g., non-application of the CCE-set or a CCE-set composed of a single CCE), or the case where separate CCE-set configuration information is not implicitly provided may be defined as the case where the CCE-set is not configured. At this time, the base station and the terminal may be configured to perform transmission and reception of a PDCCH that is not based on a CCE-set, for example, transmission and reception of a PDCCH based on a CCE structure (or, a structure of a CCE-set composed of a single CCE).

[0331] For example, let N1 be the number of CCEs constituting a specific CCE-set. The size of N1 may be determined based on a method combining one or more of the following option(s). If multiple specific options are supported and selectable, the method for determining the size of N1 may be determined based on pre-agreed rules and / or settings / instructions by the base station.

[0332] (Option #1-1-1) N1 may be set to a fixed value, or a value defined by a standard may be used. In this case, N1 has an integer value greater than or equal to 1. If a separate setting / instruction method for setting N1 other than a fixed value is supported, it may be determined that N1 is used when there is no such separate setting / instruction. For example, in the case of a PDCCH that monitors a terminal in an idle / inactive state before receiving a separate setting from the base station (e.g., SIB1 scheduling PDCCH), it may be determined that the N1 value defined by a standard is used. The method of the option proposed in this disclosure has an advantageous form in that it can implicitly determine the number of CCEs constituting the CCE-set without generating separate signaling overhead. Furthermore, it provides an advantageous effect for operating a CCE-set-based method even in situations where separate transmission and reception for setting / instructing N1 is restricted.

[0333] (Option #1-1-2) The size of N1 may be determined based on the payload size of the DCI transmitted and received according to the structure of the corresponding CCE-set. Specifically, a method may be applied where a larger N1 is determined as the DCI payload size increases, and conversely, a smaller N1 value is determined for a smaller DCI payload size. For example, based on a reference value D, N1 may be determined as N2 if the DCI payload is greater than or equal to D (or greater), and N1 may be determined as N3 if it is smaller than D (or less than or equal to D), provided that the relationship N2 > N3 is satisfied (e.g., N2 = 2 * N3). There may be one or more reference values ​​D, and if there are multiple D values, the size of N1 may be determined based on the smallest D value that the DCI payload exceeds. The reference value D may be a value that is pre-agreed upon in a standard form, or a value that is explicitly or implicitly set / instructed by the base station. The actual size of N1, determined based on a reference value (N2 and N3 in the above example), may be a value that is pre-agreed upon in a standard form or explicitly or implicitly set / instructed by the base station. Alternatively, for example, the size of N1 may be determined based on a function that takes the DCI payload size P as an argument. Specifically, for example, it may be determined to follow a rule such as N1 = f(P / X) for any number X, where f() can be defined as a rounding-up or rounding operation for the argument. The above X may be a value that is pre-agreed upon in a standard form or explicitly or implicitly set / instructed by the base station. In the case of PDCCH transmission, when the same number of CCEs is used, the code rate is determined according to the DCI payload size, which affects transmission and reception performance.Therefore, when a CCE-set is used as the basic unit of a PDCCH transmission, the transmit and receive performance of the basic unit transmission is determined by the DCI payload; thus, a method for determining N1 based on the DCI payload size, as in the proposed option method, provides an advantageous effect in guaranteeing a certain level of transmit and receive performance for the basic unit transmission.

[0334] (Option #1-1-3) The size of N1 may be determined based on the minimum Aggregation Level (AL) set / instructed for the search space to which the corresponding CCE-set structure applies. In this case, the AL refers to the total number of CCEs used for a single PDCCH transmission. For example, the base station sets / instructs the terminal to use the values ​​of A1 and A2 as the applicable AL for a specific search space, and A1 <A2의 관계인 경우, 해당 검색 공간(search space)에 적용되는 CCE-set에는 A1개의 CCE가 구성되도록 정할 수 있다. 이때 AL이 A1크기인 적어도 하나의 PDCCH 후보(candidate)는 하나의 CCE-set으로 구성될 수 있으며, AL이 A2크기인 적어도 하나의 PDCCH 후보(candidate)는 복수의 CCE-set의 조합으로 구성될 수 있다. 해당 옵션에서 제안하는 방법은 CCE-set이 PDCCH 전송의 기본 단위로 사용될 때, CCE-set이 적용된 검색 공간(search space) 상에서 가장 낮은 AL을 갖는 PDCCH 후보(candidate)의 디코딩(decoding) 성능을 보장하는데 유리한 효과를 제공한다.

[0335] (Option #1-1-4) The size of N1 may be determined by a value separately set or instructed by the base station. The base station may determine an appropriate CCE-set size by considering the terminal's capability, channel environment, and the size of the information to be transmitted or received, and explicitly set or instruct this to the terminal. The method proposed in Option #1-1-4 may be set to have a higher priority than other methods for determining N1. For example, if the size of N1 is not separately set or instructed by the base station, the size of N1 is implicitly determined based on other methods (e.g., Option #1-1-1, Option #1-1-2, or Option #1-1-3); however, if the base station explicitly sets or instructs the size of N1 as in the method proposed in Option #1-1-4, the size of N1 may be determined to follow the said set or instructed value. The method proposed in this option has an advantageous effect in supporting the configuration of an optimized CCE-set suitable for the situation, as it provides a mechanism that allows the base station to determine the appropriate size of the CCE-set by considering various situations.

[0336] For example, the basic structure of the CCE-set proposed in this disclosure can be described as an operation based on REGs. Specifically, for example, a CCE-set may be composed of one or more REGs, and the PDCCH transmission of the search space to which the CCE-set applies is performed in a structure in which one or more CCE-sets are combined. In this case, the number of REGs constituting the CCE-set may vary according to a standard agreement or a setting / instruction by a base station. Specific methods for determining the number of REGs constituting the CCE-set may include using a fixed number of REGs similar to Option #1-1-1, calculating the number of REGs based on the DCI payload similar to Option #1-1-2, determining the number of REGs by considering the minimum AL similar to Option #1-1-3, or determining the number of REGs by an explicit setting / instruction by a base station as in Option #1-1-4.

[0337] FIG. 18 illustrates an example in which a CCE-set is configured according to one embodiment of the present disclosure. The embodiment of FIG. 18 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, suggestions, methods, and / or operations of the embodiments may be omitted.

[0338] Referring to FIG. 18, each block of the form 1801 in FIG. 18 shows an example of a REG, and 1802 in FIG. 18 shows an example of a CCE composed of 6 REGs. 1803 in FIG. 18 shows an example of a case where a CCE-set consists of 1 CCE (or consists of 6 REGs). 1804 in FIG. 18 shows an example of a case where a CCE-set consists of 2 CCEs (or consists of 12 REGs).

[0339] For example, the basic structure of the CCE-set proposed in this disclosure may vary in applicability and detailed operation depending on the capability of the terminal. For example, the capability of the terminal may include the applicability of the structure of the CCE-set; if the terminal lacks the capability for the CCE-set, it may be determined not to perform CCE-set-based PDCCH transmission and reception, or to expect only the application of a CCE-set composed of a single CCE. Alternatively, for example, the capability of the terminal may include a capability for the maximum size of the number of CCEs constituting the CCE-set, and the terminal may be determined to expect that the CCE-set will be composed of a number of CCEs smaller than or equal to its capability. To perform operations based on the capability of the terminal, the terminal may be determined to report information regarding its capability to an upper node (e.g., a base station). Based on information reported by the terminal, the parent node can determine the structure and size of the CCE-set that can be configured for the terminal.

[0340] For example, to apply the basic structure of the CCE-set proposed in this disclosure, an upper node (e.g., a base station) may set or instruct the terminal to relevant information. For example, the relevant information may include whether the CCE-set is applied or, if the CCE-set is applied, the structure in which the CCE-set is configured (e.g., the number of CCEs). Methods by which the upper node sets or instructs the terminal to the above information may include higher layer signals such as SIB or dedicated RRC, or methods through MAC or DCI.

[0341] For example, the basic structure of the CCE-set proposed in this disclosure may be applied semi-statically and maintained until the information is terminated or reset after being set, or the application status or form of application may be determined through separate activation / deactivation instructions after being set, or it may be determined to be applied only during the interval / time corresponding to the instruction through dynamic instructions.

[0342] 2. Method of selecting CCEs that constitute the CCE-set

[0343] The method of configuring a CCE-set proposed in the present disclosure may include a method of selecting a CCE from among a plurality of candidate CCEs to configure the CCE-set.

[0344] For example, CCE(s) belonging to a CCE-set can be selected based on a non-interleaved method. This means that when a specific CCE-set is composed of multiple CCEs, it consists of CCEs with consecutive sequences. When a non-interleaved method is used, if the index of the CCE is determined according to the sequence in the time / frequency domain, the CCE-set can be composed of consecutive resources in the time / frequency domain. This has the advantage of providing a structure that is advantageous for improving transmission and reception performance by selecting a CCE-set that is favorable for PDCCH transmission when the base station has prior information about the wireless resource environment (e.g., CSI information in the frequency domain). In addition, the non-interleaved method has the advantage of reducing signaling overhead compared to the interleaved method described later.

[0345] Alternatively, for example, the CCE(s) belonging to a CCE-set may be selected based on an interleaved method. This means a configuration in which, when a specific CCE-set is composed of multiple CCEs, non-consecutive sequences may be included among the CCEs. Such non-interleaved or interleaved configurations of a CCE-set may be determined by units of subsets of CCEs constituting the CCE-set (hereinafter referred to as CCE bundles). Specifically, for example, if a CCE-set consists of N CCEs, the N CCEs may be grouped into M CCE bundles, and each CCE bundle may contain N / M CCEs. If N / M is not an integer, the number of CCEs included in each CCE bundle can be determined as an integer value based on N / M, and in this case, different numbers of CCEs can be mapped to each CCE bundle constituting a specific CCE-set. Each CCE bundle consists of CCEs with consecutive sequence numbers, and when a CCE-set is configured based on an interleaved method, the sequence numbers of CCEs between CCE bundles may be discontinuous. When an interleaved method is used, if the index of a CCE is determined according to its sequence in the time / frequency domain, the CCE-set can provide a structure in which resources are distributed in the time / frequency domain. This is advantageous for obtaining diversity gain effects by utilizing distributed resources when a base station lacks prior information about the wireless resource environment or when it is difficult to utilize such information.

[0346] For example, in a wireless communication system where a CCE-set structure is used, either an interleaved-based CCE selection method or a non-interleaved-based CCE selection method may be selected and used, or both methods may be used. In the case of a wireless communication system where both methods are used, the application of one of the two methods is determined according to agreed criteria, and transmission and reception of the PDCCH based on the determined method may be performed. For example, it may be determined that the base station selects the appropriate method and sets / instructs the terminal to do so.

[0347] FIG. 19 illustrates an example of a CCE-set setting according to one embodiment of the present disclosure. The embodiment of FIG. 19 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, suggestions, methods, and / or operations of the embodiments may be omitted.

[0348] Figure 19(a) shows an example of a structure in which CCEs are selected sequentially using a non-interleaved method. In the example of the figure, the CCEs selected for the composition of the CCE-set (1901 in Figure 19(a)) have sequential CCE indices, and a total of 4 CCEs are selected to form a CCE-set (1902 in Figure 19(a)) using a non-interleaved method. If the concept of a CCE bundle is used, the CCE bundle in Figure 19(a) consists of 4 CCEs, and 1902 in Figure 19(a) corresponds to this.

[0349] FIG. 19(b) shows an example of a structure where the interleaved method is applied, and the CCEs are selected to include a discontinuous structure. In FIG. 19(b), the CCEs selected for the composition of the CCE-set (1903 in FIG. 19(b)) have some sequential CCE indices, but there are also intervals of non-sequential CCE indices, and a total of four CCEs are selected to form an interleaved CCE-set (1905 in FIG. 19(b)). If the concept of a CCE bundle is used, each CCE bundle in FIG. 19(b) consists of two CCEs, and within each CCE bundle, the CCEs have sequential CCE indices (1904 in FIG. 19(b)).

[0350] For example, the applicability and detailed operation of the method for selecting a CCE from a plurality of candidate CCEs to configure the CCE-set proposed in this disclosure may vary depending on the capability of the terminal. For example, the capability of the terminal may include whether it supports a method of selecting a CCE based on an interleaved method; a terminal having such capability may support both interleaved and non-interleaved methods, while a terminal not having such capability may be configured to support only the interleaved method.

[0351] For example, to configure the CCE-set proposed in this disclosure, an upper node (e.g., a base station) may set / instruct relevant information to a terminal in order to apply a method of selecting a CCE from a plurality of candidate CCEs. For example, the relevant information may include information setting / instructing one of an interleaved method and a non-interleaved method. Additionally, if a non-interleaved method is explicitly or implicitly set / instructed, information required for the non-interleaved method, such as the size of the CCE bundle and / or the pattern in which the CCE bundle (or CCE) is interleaved, may be included in the information being set / instructed. Methods by which the upper node sets / instructs the terminal the above information may include higher layer signals such as SIB or dedicated RRC, or methods through MAC or DCI.

[0352] For example, the method of selecting a CCE from among a plurality of candidate CCEs to configure the CCE-set proposed in the present disclosure may be applied semi-statically so that it is maintained and applied until the information is terminated or reset after being set, or the application status or form of application may be determined through a separate activation / deactivation instruction after being set, or it may be determined to be applied only during the interval / time corresponding to the instruction through a dynamic instruction.

[0353] 3. Index and Configuration Unit of CCE-set

[0354] For example, the structure of a CCE-set advantageous for transmission and reception (e.g., including the number of CCEs constituting the CCE-set and the method by which CCEs are selected) may vary and be variable depending on various conditions, such as wireless channel conditions, the type and size of transmitted and received information, and / or the status of the transmitting and receiving ends. Considering this, a method may be used to determine the unit in which the CCE-set structure is configured and to apply different CCE-set structures according to each unit. The unit in which the CCE-set structure is configured may be used by considering one or more combinations of the following option(s).

[0355] (Option #1-2-1) The structure of a CCE-set can be configured in units of a CORESET. Specifically, for example, if the structure of a CCE-set can be applied to a specific CORESET, the configuration information for that CORESET may be configured to include information for configuring the structure of the CCE-set. This means that different CCE-set structures can be configured for different CORESETs. In the above description, a CORESET refers to a unit in which some parameters for transmission and reception within a wireless resource are configured / instructed / agreed upon to transmit / receive a DL control channel based on the NR standard, and the transmitting and receiving end can perform / expect actual PDCCH transmission and reception based on the configuration information of the CORESET. However, the term CORESET is not limited to the definition of the term and existing NR, and may also be applied to units having the same or similar functions, namely, configuration units for setting up wireless resource areas and related parameters that are set / instructed / agreed upon for the purpose of transmitting / receiving DL control channels, as long as the technical concept of the present disclosure is maintained. For example, when a unit of configuration information is defined in which the structure of CCE is defined, the method of Option #1-2-1 may be applied to said unit of configuration information.

[0356] For example, when Option #1-2-1 is used, configuration information for the CCE-set structure is provided on a CORESET basis, but whether the configured CCE-set structure is applied can be determined on a search space or PDCCH basis. For example, the configuration information of a search space reflecting a CORESET containing the configuration information for the CCE-set structure may include information for setting whether the CCE-set is applied (e.g., whether it is enabled). Alternatively, for example, multiple CCE-set structures are configured for a single CORESET, and the configuration information of a search space reflecting the CORESET may include information for selecting one of the multiple CCE-set structures (e.g., ID information). Alternatively, for example, as one method of implicitly determining whether the CCE-set structure is applied, it can be set so that the CCE-set structure is not applied to CSS (or the default / common CCE-set structure is applied), while the CCE-set structure is applied to USS. This can be advantageous for allowing common decoding by deciding not to reflect the CCE-set structure in the case of common channels, taking into account different UE capabilities.

[0357] For example, when the structure of a CCE-set is set in units of CORESET as in Option #1-2-1, different search spaces that share the same CCE-set structure can share the same CCE-set structure, which provides a structure advantageous for reducing the complexity of the terminal's BD.

[0358] (Option #1-2-2) The structure of a CCE-set can be configured in units of a search space. Specifically, for example, when the structure of a CCE-set is applied to a specific search space, the configuration information for that search space may be configured to include information for configuring the structure of the CCE-set. This means that the structure and application status of the CCE-set may be configured differently between different search spaces that share the same CORESET configuration. In the above description, a search space refers to a unit in which parameters such as CORESET ID, period, position of symbols within a slot, and AL are configured to transmit and receive a DL control channel based on the NR standard, and the terminal searches for the transmission of an actual PDCCH. The transmitting and receiving end can perform / expect the transmission and reception of an actual PDCCH based on the configuration information of the search space. However, the term "search space" is not limited to the definition of the term and existing NR, and may also be applied to units having the same or similar functions, namely, constituent units for setting parameters such as the structure, period, position of symbols within a slot, and AL of wireless resources that are set / instructed / agreed upon for the purpose of transmitting / receiving DL control channels, as long as the spirit of the invention is maintained.

[0359] For example, the method proposed in Option #1-2-2 can be applied as a unit of a set of search spaces. For instance, the structure of a CCE-set can be configured as a unit of a set of search spaces (e.g., a search space set). This is because search spaces with similar purposes and requirements may have identical or similar suitable CCE-set structures; considering this, configuring a common CCE-set can provide an advantageous effect in reducing unnecessary signaling overhead.

[0360] For example, when the structure of a CCE-set is set in units of search spaces as in Option #1-2-2, it provides an advantageous structure in that the characteristics of the DL control channels transmitted and received through each search space, such as DCI payloads, configured ALs, and / or the structure of the CCE-set suitable for the purpose can be individually configured.

[0361] (Option #1-2-3) The structure of a CCE-set can be configured based on ALs. Specifically, for example, if multiple ALs are configured within a single search space, the structure or application of the CCE-set can be configured, directed, or agreed upon for each AL or as a set of ALs. For instance, based on a specific AL, the structure of the CCE-set applied when the value is below that level may differ from the structure applied when the value exceeds it.

[0362] For example, the method of Option #1-2-3 can also be applied as a method of setting the structure of the CCE-set based on PDCCH candidates. This means that among multiple PDCCH candidates set within a specific search space, the structure of the CCE-set can be applied differently based on the PDCCH candidate.

[0363] For example, when the structure of the CCE-set is configured based on AL or PDCCH candidates as in Option #1-2-3, it has an advantage in that, considering the impact of the CCE-set structure on decoding performance, it can provide a structure favorable for optimizing decoding performance for different ALs.

[0364] For example, options for determining the unit in which the structure of the proposed CCE-set is configured may be used in combination of one or more methods. For instance, a CCE-set is configured with a CORESET as the unit, and simultaneously, one or more CCE-sets may be configured within a single CORESET; furthermore, the CCE-set actually applied may be determined based on a search space or AL.

[0365] For example, if multiple CCE-sets are configured on a resource area set for the purpose of transmitting and receiving a DL control channel, an index may be assigned and used to distinguish each CCE-set. The index of a CCE-set may be determined and used based on a CORESET, based on each search space (or search space set), or determined and used within each PDCCH candidate.

[0366] For example, the method of determining the unit for configuring the CCE-set proposed in this disclosure may vary in applicability and detailed operation depending on the capability of the terminal. For example, the capability of the terminal may include the capability for all or part of the proposed options.

[0367] For example, based on the method proposed in this disclosure, a method and unit for a higher node (e.g., a base station) to set / instruct configuration information of a CCE-set to a terminal may be determined. For example, if the structure of a CCE-set is determined by a CORESET, the configuration information of the CCE-set may be provided by being included in the information for setting the CORESET; if the structure of a CCE-set is determined by a search space (or search space set), the configuration information of the CCE-set may be provided by being included in the information for setting the search space (or search space set); and / or if the structure of a CCE-set is determined by an AL, the configuration information of the CCE-set may be provided by being included in the configuration information for the AL among the configuration information of each search space. The method for the higher node to set / instruct the terminal regarding the above information may include a higher layer signal such as SIB or dedicated RRC, or a method through MAC or DCI.

[0368] [Method #2] Method of encoding and coded bit mapping based on the configuration of a CCE-set and operation of a device supporting the same

[0369] The present disclosure proposes a method in which encoding is performed based on the structure of a CCE-set, and the encoded coded bit mapping is mapped to each CCE-set(s).

[0370] 1. Encoding based on the configuration of the CCE-set

[0371] The method proposed in this disclosure considers a structure in which the total coded bit length is N1, and the total coded bit consists of M sub-coded bits of size N2. In this case, the relationship N1 = M * N2 holds. As a kernel matrix of a polar code When sizes are used, the sizes of N1 and N2 have the condition of being powers of p. For example, a size of 2x2 When used as a kernel matrix, N1 and N2 can be determined from powers of 2, and the operation of the proposed method and device is explained based on this in the following description.

[0372] For example, the encoding process considered in the proposal of the present disclosure is as follows. When a polar encoding matrix of size N1xN1 is used and the size of the information to be transmitted and received is K bits (e.g., including the CRC length if necessary), the information of size K bits is mapped to an input bit sequence of length N1, and encoding is performed through operations using the input bit sequence and the polar encoding matrix. At this time, some of the K bits may be repeated and mapped on the input bit sequence. The input bit sequence of length N1 is sequentially divided into M sub-input bit sequences of length N2 according to the decoding order (e.g., the order in which decoding is performed based on SC / SCL decoding). At this time, a structure is used in which all K bits of information are mapped once onto a sub-input bit sequence composed of the fastest N2 indices in index order within the input bit sequence (e.g., in reverse order of decoding order when considering SC / SCL decoding), and K' bit information, which is part of the K bit information, is mapped at least once onto the remaining N1-N2 length sub-input bit sequence. This means that all / part of the K' bit information can be mapped two or more times onto the N1-N2 length sub-input bit sequence.

[0373] For example, as one of the specific methods for implementing the encoding process described above, the following process may be performed. For example, the encoding process below is one of the examples to explain the operation of the proposed method, and as long as the technical concept of the encoding process described above is maintained, the method proposed in this disclosure may be applied and used even if other encoding methods are used.

[0374] (Step 1) Within an input bit sequence of length N1, the earliest sub-input bit sequence of length N2, in index order (e.g., in reverse order of decoding when considering SC / SCL decoding), can be configured so that all K bits of information are mapped to information bits. In this case, the criterion for mapping information is the position of the bit with higher priority; for example, based on the reliability order, the position of the K bit selected first (e.g., having high reliability) is selected as the position of the information bit.

[0375] (Step 2) When the number of sub-input bit sequences for which the positions of information bits have been determined up to the previous step is set to M1, information bit mapping is performed on the M1 sub-input bit sequences of length N2 that are the next in line in index order within the input bit sequence of length N1. In the sub-input bit sequence of length M1*N2, it can be determined that K' bits, which are part of the K bits of information, are mapped as information bits. The part of the K' bits can be determined from the information placed in the lowest K' positions among the positions selected as information bits up to the previous step, in order of lowest priority, for example, in order of lowest reliability order. At this time, the criterion for mapping information is that the position of the bit with higher priority on the sub-input bit sequence of length M1*N2 considered at that stage, for example, based on the reliability order, the position of the K' bit selected first (e.g., having high reliability) is selected as the position of the information bit, and the remainder is selected as the frozen bit. The size of the K' bit is determined based on a pre-agreed rule and / or the settings / instructions of the upper node.

[0376] (Step 3) After the operation of Step 2 above is completed, if the number of sub-input bit sequences in which the positions of information bits are determined is M, polar encoding is performed using an input bit sequence of length N1. If the number is less than M, return to Step 2 described above.

[0377] For example, based on the encoding process described above, the size of N2 can be determined based on the configuration information of the CCE-set. Specifically, for example, the size of N2 can be determined based on the number of coded bits that can be mapped within a single CCE-set. For example, it can be determined based on the number of REs available for coded bit mapping purposes and the modulation order used for transmission and reception, and specifically, the number of available REs is N RE When a CCE-set is used with modulation order m, the size of N2 is N RE It can be determined as the smallest power of 2 greater than *m. This can be expressed as a formula as follows.

[0378]

[0379] For example, the above formula shows an example in the form of a formula where the N2 value is determined based on the configuration information of the CCE-set. In the above formula, min(a, b) refers to a function that results in the smaller value between a and b, and represents the length of the largest mother code size that can be selected when the corresponding encoding is performed. In the example above, QPSK modulation, i.e., the case where m=2, was considered. In the above formula, the size of N2' may be calculated in the same form as the formula, or it may be expressed in a form determined by the number of CCEs constituting the CCE-set as an argument.

[0380] For example, based on the encoding process described above, the size of N1 may be determined by a combination of one or more of the following option(s). When one or more methods are used, an operation may be included in which the larger or smaller value among the values ​​calculated using each option is selected, for example.

[0381] (Option #2-1-1) The size of N1 can be determined based on the size K of the information to be transmitted or received. This can be a method of selecting the largest mother code size that does not generate a repetition structure of the coded bits when encoding information of size K using a polar code. If the size of N1 calculated based on this option exceeds the maximum mother code size supported for transmission and reception, the size of N1 is set to the maximum mother code size. This offers an advantageous effect in that it does not generate separate signaling overhead for setting / instructing N1, and also provides an advantageous effect in that it provides the same standard for N1 even if different settings / instructions or capabilities exist when terminals monitoring the same search space are present.

[0382] (Option #2-1-2) The size of N1 may be determined based on the size of the maximum AL applied in the search space where the CCE-set is used. For example, if the largest AL set in a specific search space is L, the size of N1 may be determined based on the number of REs available for coded bit mapping across all L CCEs and the modulation order. If the size of N1 calculated based on this option exceeds the maximum mother code size supported for transmission and reception, the size of N1 is set to the maximum mother code size. This provides an advantageous effect in that it does not generate separate signaling overhead for setting / indicating N1, and also has an advantageous effect in that it supports the generation of coded bits optimized to the maximum AL of the target terminal.

[0383] (Option #2-1-3) The size of N1 may be determined by a value directly set or instructed by the upper node (e.g., base station). This has an advantageous effect in that it guarantees the scheduling flexibility of the upper node, thereby providing a mechanism for the upper node to control transmission and reception performance and the efficiency of wireless resource utilization.

[0384] FIG. 20 illustrates an example of a method for configuring an input bit sequence according to one embodiment of the present disclosure. The embodiment of FIG. 20 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, suggestions, methods, and / or operations of the embodiments may be omitted.

[0385] Referring to FIG. 20, an input bit sequence of length N1 is composed of four sub-input bit sequences, each having a length of N2. In this case, the fastest sub-input bit sequence (22001 in FIG. 20) contains all information bits (2002 in FIG. 20), and some of the information bits are repeated in the remaining sub-input bit sequences to perform mapping (2003 in FIG. 20).

[0386] For example, the applicability and detailed operation of the encoding method based on the configuration of the CCE-set proposed in this disclosure may vary depending on the capability of the terminal. For example, the capability of the terminal may include capability for all or part of the proposed options.

[0387] For example, to support the method proposed in this disclosure, the upper node may set / instruct the terminal to the information described above, which may include a higher layer signal such as SIB or dedicated RRC, or a method through MAC or DCI.

[0388] 2. Coded bit mapping based on the configuration of the CCE-set

[0389] The present disclosure proposes a coded bit mapping method based on the configuration of a CCE-set when an encoding process based on the configuration of the CCE-set described above is used. The following description of the method is based on a method of mapping an input bit sequence of length N1 to a coded bit of length N1 generated by performing polar encoding; in this case, if the coded bit is required or if agreed upon / set / instructed, it may be the result of applying interleaving (or sub-block interleaving) after encoding.

[0390] For example, in the method proposed in the present disclosure, a coded bit of length N1 is divided into M sub-coded bits, wherein each sub-coded bit is set to have a constant length of N2 (= N1 / M). In this case, the coded bits constituting each sub-coded bit are selected as consecutive indices on the index of the coded bit of length N1.

[0391] For example, the configured M sub-coded bits are mapped to M CCE-sets in a 1:1 correspondence. In this case, if the number of coded bits mappable to a single CCE-set is not N2, each sub-coded bit is mapped to a CCE-set after undergoing a rate matching process. Specifically, for example, if the number of coded bits mappable to a CCE-set is N3 and the condition N2 > N3 occurs, a puncturing operation is applied to ensure that only a portion of the sub-coded bits are mapped to the CCE-set, and conversely, N2 <N3의 조건이 발생되는 경우 반복(repetition)의 동작이 적용되어 서브-코딩된 비트(sub-coded bit)의 일부가 CCE-set 상에 반복되어 매핑(mapping)되도록 정할 수 있다. 레이트 매칭(Rate matching)이 적용되어 펑처링(puncturing) 또는 반복(repetition)이 적용되는 경우, 코딩된 비트(coded bit)의 인덱스에 따라 순차적으로 매핑(mapping) 여부가 결정되도록 정할 수 있으며, 이는 각 서브-코딩된 비트(sub-coded bit) 별로 원형 버퍼(circular buffer)가 적용되는 구조로 볼 수 있다.

[0392] For example, the rule for M sub-coded bits to correspond to M CCE-sets can be determined based on the indices of the sub-coded bits and the indices of the CCE-sets. For example, the indices of the sub-coded bits can be determined in ascending order by selecting the coded bits on a coded bit of length N1, for example, the sub-coded bit containing the coded bit with the smallest index has the smallest index (e.g., 0). The indices of the CCE-sets can be determined to follow the CCE-set index determination rule proposed in [Method #1] above.

[0393] For example, the method proposed in this disclosure can be applied even when the number of sub-coded bits and the number of CCE-sets targeted for coded bit mapping are different.

[0394] For example, if M1 sub-coded bits are mapped to M2 CCE-sets and M1 <M2인 경우, 모든 서브-코딩된 비트(sub-coded bit)는 최소한 하나의 CCE-set에 대응되며, 이때 전체 / 일부 서브-코딩된 비트(sub-coded bit)는 복수의 CCE-set에 대응되어 반복적으로 매핑(mapping)되도록 정할 수 있다. 예를 들어, 2*M1=M2의 관계가 성립될 때 서브-코딩된 비트(sub-coded bit)와 CCE-set은 1:2의 대응 관계를 가지며 하나의 서브-코딩된 비트(sub-coded bit)가 두 개의 CCE-set에 반복되어 매핑(mapping)됨을 의미할 수 있다. M1개의 서브-코딩된 비트(sub-coded bit)가 M2개의 CCE-set에 대응되는 규칙은 서브-코딩된 비트(sub-coded bit)의 인덱스와 CCE-set의 인덱스에 기반하도록 정할 수 있다.

[0395] For example, if M1 sub-coded bits are mapped to M2 CCE-sets and M1 > M2, M2 of the M1 sub-coded bits can be selected to correspond to each CCE-set. For example, when the relationship M1 = 2 * M2 holds, M2 sub-coded bits are selected according to the rule, and the selected sub-coded bits can be mapped to the CCE-sets in a 1:1 correspondence. Information for selecting the M2 sub-coded bits to be mapped from the M1 sub-coded bits can be configured by the base station and provided to the terminal. For example, the provided information may be a sub-coded bit index or information for calculating it. For example, the above information may be information regarding one of the sub-coded bit indices included in M2. Subsequently, the remaining M2-1 sub-coded bit indices may be determined sequentially from the provided indices (or, if necessary, by applying a round-robin rule) or determined as indices of sub-coded bits selected by applying a hashing function based on the provided indices. Subsequently, the rule for determining the selected M2 sub-coded bits to correspond to M2 CCE-sets may be determined based on the indices of the sub-coded bits and the indices of the CCE-sets.

[0396] FIG. 21 illustrates an example of a process in which encoding based on the configuration of a CCE-set and coded bit mapping based on the configuration of a CCE-set are performed according to one embodiment of the present disclosure. The embodiment of FIG. 21 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, proposals, methods, and / or operations of the embodiments may be omitted.

[0397] Referring to FIG. 21, 2101 in FIG. 21 is a step in which an input bit sequence is constructed prior to encoding. Considering the structure of the CCE-set, the entire information is mapped in units of blocks of size N2, and some information is repeated. The generated input bit sequence undergoes the polar encoding step of 2102 in FIG. 21, through which the coded bit of 2103 in FIG. 21 is generated. In the polar encoding step, the structural characteristics of the polar code are applied, and all information is reflected in each coded bit of size N2. The generated coded bit undergoes the rate matching step of 2104 in FIG. 21, and is adjusted to a length suitable for the number of available REs and the modulation order. At this time, rate matching is performed independently for each sub-coded bit of length N2, and as a result, a rate-matched coded bit (2105 in FIG. 21) is generated. The generated rate-matched coded bits are subjected to a modulation process (2106 in FIG. 21). The modulated symbols are subjected to CCE-set mapping of 2107 in FIG. 21 on a block-by-block basis.

[0398] For example, the method by which a coded bit mapping based on the configuration of the CCE-set proposed in this disclosure is determined may vary in applicability and detailed operation depending on the capability of the terminal. For example, the capability of the terminal may include the capability regarding the applicability of the proposed method.

[0399] For example, to support the method proposed in this disclosure, the upper node may set / instruct the terminal to the information described above, which may include a higher layer signal such as SIB or dedicated RRC, or a method through MAC or DCI.

[0400] Meanwhile, when the methods proposed in this disclosure are applied to a wireless communication system in which transmission and reception between a base station and a terminal are controlled by an upper node (e.g., a base station), such as 6G, examples of procedures and operations for the terminal and the base station to perform the proposed methods may be as follows. In the following description, the entity controlling transmission and reception between two nodes is described using the term "base station," but those skilled in the art will understand that the operations described in the following embodiments may be applied even if the entity is not a base station, that is, if one node performs the role of controlling transmission and reception between two nodes.

[0401] FIG. 22 illustrates an example in which a terminal performs an operation related to a CCE-set according to one embodiment of the present disclosure. The embodiment of FIG. 22 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, suggestions, methods, and / or operations of the embodiments may be omitted.

[0402] Referring to FIG. 22, in step S2201, the terminal may receive information from the base station for receiving a DL control channel. At this time, the information may include information regarding the configuration of the CCE-set and the coded bit mapping based thereon. For example, the information may be provided to the terminal via SIB or dedicated RRC signaling and a higher layer signal. For example, if a dynamic instruction for the DL control channel reception method is applied, the information may be provided to the terminal based on a dynamic information instruction method, such as MAC CE or DCI. In step S2202, after receiving the information, the terminal may determine the structure in which a PDCCH candidate is configured in the search space according to the information regarding the configured / instructed DL control channel, and apply it. In step S2203, the terminal can perform a blind decoding operation on PDCCH candidates in the search space based on this. In step S2204, if the terminal succeeds in decoding the PDCCH, the terminal can obtain information received through the PDCCH.

[0403] For example, the method described in FIG. 22 may be performed by the first device (100) of FIG. 25. For example, one or more processors (102) of the first device (100) of FIG. 25 may be configured to perform the operation according to FIG. 22. Additionally, for example, one or more memories (104) of the first device (100) may store instructions for performing the method in the example of FIG. 22 or in the various proposals of the aforementioned disclosure when executed by one or more processors (102).

[0404] FIG. 23 illustrates an example in which a base station performs an operation related to a CCE-set according to one embodiment of the present disclosure. The embodiment of FIG. 23 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, proposals, methods, and / or operations of the embodiments may be omitted.

[0405] Referring to FIG. 23, in step S2301, the base station may set information related to the DL control channel to be applied to the terminal. At this time, the information may include information regarding the configuration of the CCE-set and the coded bit mapping based thereon. In step S2302, the base station may transmit information related to the DL control channel set through the above process to the terminal. For example, the information may be provided to the terminal via SIB or dedicated RRC signaling and a higher layer signal. For example, if dynamic instructions regarding the DL control channel reception method are applied, the information may be provided to the terminal by being indicated based on a dynamic information instruction method, such as MAC CE or DCI. In step S2303, the base station may subsequently perform an encoding process for PDCCH transmission if necessary, and the encoding may be performed based on information related to the DL control channel, including the structure of the CCE-set and the coded bit mapping method. In step S2304, the base station can transmit the PDCCH generated through the above process to the terminal through a designated search space.

[0406] For example, the method described in FIG. 23 may be performed by the second device (200) of FIG. 25. For example, one or more processors (202) of the second device (200) of FIG. 25 may be configured to perform the operation according to FIG. 23. Additionally, for example, one or more memories (204) of the second device (200) may store instructions for performing the method in the example of FIG. 23 or in the various proposals of the aforementioned disclosure when executed by one or more processors (202).

[0407] The method proposed in this disclosure defines a CCE-set, which is a unit element constituting a PDCCH candidate, and provides a structure in which each CCE-set has the characteristic of being able to decode independently (e.g., self-decodable). Through this, the terminal can gain an advantage in terms of decoding performance or power saving efficiency. In addition, when signaling of the same (or partially shared) DL control information is required for terminals with different capabilities, e.g., bandwidth capability, it can provide an advantage in terms of providing a structure that enables the transmission and reception of the intended information through a single DL control channel.

[0408] Various embodiments of the present disclosure may be combined with one another.

[0409] The following describes an apparatus to which various embodiments of the present disclosure may be applied.

[0410] Although not limited to, the various descriptions, functions, procedures, proposals, methods, and / or flowcharts of operation disclosed in this document may be applied to various fields requiring wireless communication / connection (e.g., 5G, 6G) between devices.

[0411] Examples are provided in more detail below with reference to the drawings. In the following drawings and descriptions, the same reference numerals may represent the same or corresponding hardware blocks, software blocks, or function blocks unless otherwise described.

[0412] FIG. 24 shows a communication system (1) according to one embodiment of the present disclosure. The embodiment of FIG. 24 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, suggestions, methods and / or operations of the embodiments may be omitted.

[0413] Referring to FIG. 24, a communication system (1) to which various embodiments of the present disclosure are applied includes a wireless device, a base station, and a network. Here, the wireless device refers to a device that performs communication using wireless access technology (e.g., 6G, 5G NR (New RAT), LTE (Long Term Evolution)) and may be referred to as a communication / wireless / 5G / 6G device. Although not limited thereto, the wireless device may include a robot (100a), a vehicle (100b-1, 100b-2), an XR (eXtended Reality) device (100c), a hand-held device (100d), a home appliance (100e), an IoT (Internet of Thing) device (100f), and an AI device / server (400). For example, the vehicle may include a vehicle equipped with a wireless communication function, an autonomous vehicle, a vehicle capable of performing inter-vehicle communication, etc. Here, the vehicle may include an Unmanned Aerial Vehicle (UAV) (e.g., a drone) and / or an Aerial Vehicle (AV) (e.g., Advanced Air Mobility). The XR device includes an Augmented Reality (AR) / Virtual Reality (VR) / Mixed Reality (MR) device and may be implemented in the form of a Head-Mounted Device (HMD), a Head-Up Display (HUD) equipped in a vehicle, a television, a smartphone, a computer, a wearable device, a home appliance, digital signage, a vehicle, a robot, etc. The portable device may include a smartphone, a smartpad, a wearable device (e.g., a smartwatch, smart glasses), a computer (e.g., a laptop, etc.). The home appliance may include a TV, a refrigerator, a washing machine, etc. The IoT device may include a sensor, a smart meter, etc. For example, a base station and a network may be implemented as a wireless device, and a specific wireless device (200a) may operate as a base station / network node to other wireless devices.

[0414] Here, the wireless communication technology implemented in the wireless devices (100a to 100f) of this specification may include LTE, NR, and 6G, as well as Narrowband Internet of Things for low-power communication. For example, NB-IoT technology may be an example of LPWAN (Low Power Wide Area Network) technology and may be implemented according to standards such as LTE Cat NB1 and / or LTE Cat NB2, but is not limited to the names mentioned above. Additionally, or generally, the wireless communication technology implemented in the wireless devices (100a to 100f) of this specification may perform communication based on LTE-M technology. For example, LTE-M technology may be an example of LPWAN technology and may be referred to by various names such as eMTC (enhanced Machine Type Communication). For example, LTE-M technology may be implemented in at least one of various standards such as 1) LTE CAT 0, 2) LTE Cat M1, 3) LTE Cat M2, 4) LTE non-BL (non-Bandwidth Limited), 5) LTE-MTC, 6) LTE Machine Type Communication, and / or 7) LTE M, and is not limited to the names mentioned above. Additionally or generally, wireless communication technology implemented in the wireless devices (100a to 100f) of this specification may include at least one of ZigBee, Bluetooth, and Low Power Wide Area Network (LPWAN) for low-power communication, and is not limited to the names mentioned above. As an example, ZigBee technology can create personal area networks (PANs) related to small / low-power digital communication based on various standards such as IEEE 802.15.4, and may be referred to by various names.

[0415] Wireless devices (100a to 100f) can be connected to a network (300) through a base station (200). Artificial Intelligence (AI) technology may be applied to the wireless devices (100a to 100f), and the wireless devices (100a to 100f) can be connected to an AI server (400) through the network (300). The network (300) can be configured using a 3G network, a 4G (e.g., LTE) network, a 5G (e.g., NR) network, or a 6G network. The wireless devices (100a to 100f) may communicate with each other through the base station (200) / network (300), but they may also communicate directly (e.g., sidelink communication) without going through the base station / network. For example, vehicles (100b-1, 100b-2) can communicate directly (e.g., V2V (Vehicle to Vehicle) / V2X (Vehicle to everything) communication). Also, IoT devices (e.g., sensors) can communicate directly with other IoT devices (e.g., sensors) or other wireless devices (100a to 100f).

[0416] Wireless communication / connection (150a, 150b, 150c) can be established between wireless devices (100a~100f) / base station (200) and base station (200) / base station (200). Here, wireless communication / connection can be achieved through uplink / downlink communication (150a) and sidelink communication (150b) (or D2D communication), and inter-base station communication (150c) (e.g., relay, IAB (Integrated Access Backhaul) and various wireless access technologies (e.g., 6G or 5G NR). Through wireless communication / connection (150a, 150b, 150c), wireless devices and base stations / wireless devices, and base stations and base stations can transmit / receive wireless signals to / from each other. For example, wireless communication / connection (150a, 150b, 150c) can transmit / receive signals through various physical channels. To this end, based on various proposals of the present disclosure, at least some of the following may be performed: various configuration information setting processes for transmitting / receiving wireless signals, various signal processing processes (e.g., channel encoding / decoding, modulation / demodulation, resource mapping / demapping, etc.), resource allocation processes, etc.

[0417] FIG. 25 shows a wireless device according to one embodiment of the present disclosure. The embodiment of FIG. 25 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, suggestions, methods and / or operations of the embodiments may be omitted.

[0418] Referring to FIG. 25, the first wireless device (100) and the second wireless device (200) can transmit and receive wireless signals through various wireless access technologies (e.g., LTE, LTE-A, LTE-A pro, NR, 5G, 5G-A, 6G). Here, {the first wireless device (100), the second wireless device (200)} may correspond to {wireless device (100x), base station (200)} and / or {wireless device (100x), wireless device (100x)} of FIG. 24.

[0419] 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 transceivers (106) and may be configured to implement the descriptions, functions, procedures, proposals, methods and / or sequences of operation disclosed in this document. For example, the processor (102) may process information within the memory (104) to generate a first information / signal and then transmit a wireless signal containing the first information / signal through the transceiver (106). Additionally, the processor (102) may receive a wireless signal containing a second information / signal through the transceiver (106) and then store information obtained from the 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). For example, the memory (104) may store software code containing instructions for performing some or all of the processes controlled by the processor (102) or for performing the descriptions, functions, procedures, proposals, methods, and / or operation sequence diagrams disclosed in this document. Here, the processor (102) and the memory (104) may be part of a communication modem / circuit / chip designed to implement wireless communication technology (e.g., LTE, NR). The transceiver (106) may be connected to the processor (102) and may transmit and / or receive wireless signals through one or more antennas (108). The transceiver (106) may include a transmitter and / or receiver. The transceiver (106) may be combined with an RF (Radio Frequency) unit. In the present disclosure, a wireless device may refer to a communication modem / circuit / chip.

[0420] The second wireless device (200) includes one or more processors (202) and one or more memories (204), and may additionally include one or more transceivers (206) and / or one or more antennas (208). The processor (202) controls the memory (204) and / or transceivers (206) and may be configured to implement the descriptions, functions, procedures, proposals, methods and / or sequences of operation disclosed in this document. For example, the processor (202) may process information within the memory (204) to generate a third information / signal and then transmit a wireless signal containing the third information / signal through the transceiver (206). Additionally, the processor (202) may receive a wireless signal containing a fourth information / signal through the transceiver (206) and then store information obtained from the signal processing of the fourth information / signal in the memory (204). Memory (204) may be connected to the processor (202) and may store various information related to the operation of the processor (202). For example, memory (204) may store software code containing instructions for performing some or all of the processes controlled by the processor (202) or for performing the descriptions, functions, procedures, proposals, methods, and / or flowcharts of operation disclosed in this document. Here, the processor (202) and memory (204) may be part of a communication modem / circuit / chip designed to implement wireless communication technology (e.g., LTE, NR). A transceiver (206) may be connected to the processor (202) and may transmit and / or receive wireless signals through one or more antennas (208). The transceiver (206) may include a transmitter and / or receiver. The transceiver (206) may be interchangeable with an RF unit. In this disclosure, a wireless device may refer to a communication modem / circuit / chip.

[0421] Hereinafter, hardware elements of the wireless device (100, 200) will be described in more detail. Although not limited thereto, one or more protocol layers may be implemented by one or more processors (102, 202). For example, one or more processors (102, 202) may implement one or more layers (e.g., 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 Service Data Units (SDUs) according to the descriptions, functions, procedures, proposals, methods, and / or flowcharts of operation disclosed in this document. One or more processors (102, 202) may generate messages, control information, data, or information according to the descriptions, functions, procedures, proposals, methods, and / or flowcharts of operation disclosed in this document. One or more processors (102, 202) may generate a signal (e.g., baseband signal) containing a PDU, SDU, message, control information, data, or information according to the functions, procedures, proposals, and / or methods disclosed in this document and provide it to one or more transceivers (106, 206). One or more processors (102, 202) may receive a signal (e.g., baseband signal) from one or more transceivers (106, 206) and may obtain a PDU, SDU, message, control information, data, or information according to the descriptions, functions, procedures, proposals, methods, and / or flowcharts disclosed in this document.

[0422] 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. For example, one or more Application Specific Integrated Circuits (ASICs), one or more Digital Signal Processors (DSPs), one or more Digital Signal Processing Devices (DSPDs), one or more Programmable Logic Devices (PLDs), or one or more Field Programmable Gate Arrays (FPGAs) may be included in one or more processors (102, 202). The descriptions, functions, procedures, proposals, methods, and / or flowcharts disclosed in this document may be implemented using firmware or software, and the firmware or software may be implemented to include modules, procedures, functions, etc. Firmware or software configured to perform the descriptions, functions, procedures, proposals, methods, and / or operation sequences disclosed in this document may be contained in one or more processors (102, 202) or stored in one or more memories (104, 204) and driven by one or more processors (102, 202). The descriptions, functions, procedures, proposals, methods, and / or operation sequences disclosed in this document may be implemented using firmware or software in the form of code, instructions, and / or sets of instructions.

[0423] One or more memories (104, 204) may be connected to one or more processors (102, 202) and may store various forms of data, signals, messages, information, programs, codes, instructions, and / or commands. One or more memories (104, 204) may be composed of ROM, RAM, EPROM, flash memory, hard drive, registers, cache memory, computer read storage media, and / or combinations thereof. One or more memories (104, 204) may be located inside and / or outside of one or more processors (102, 202). Additionally, one or more memories (104, 204) may be connected to one or more processors (102, 202) through various technologies such as wired or wireless connections.

[0424] One or more transceivers (106, 206) may transmit user data, control information, wireless signals / channels, etc., as mentioned in the methods and / or operation flowcharts, etc., of this document to one or more other devices. One or more transceivers (106, 206) may receive user data, control information, wireless signals / channels, etc., as mentioned in the descriptions, functions, procedures, proposals, methods and / or operation flowcharts, etc., disclosed in this document from one or more other devices. For example, one or more transceivers (106, 206) may be connected to one or more processors (102, 202) and may transmit and receive wireless signals. For example, one or more processors (102, 202) may control one or more transceivers (106, 206) to transmit user data, control information, or wireless 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 wireless signals from one or more other devices. Additionally, one or more transceivers (106, 206) may be connected to one or more antennas (108, 208), and one or more transceivers (106, 206) may be configured to transmit and receive user data, control information, wireless signals / channels, etc., as described in the descriptions, functions, procedures, proposals, methods, and / or flowcharts of operation disclosed in this document through one or more antennas (108, 208). In this document, one or more antennas may be multiple physical antennas or multiple logical antennas (e.g., antenna ports). One or more transceivers (106, 206) can convert the received wireless signal / channel, etc. from an RF band signal to a baseband signal in order to process the received user data, control information, wireless signal / channel, etc. using one or more processors (102, 202).One or more transceivers (106, 206) can convert user data, control information, wireless signals / channels, etc. processed using one or more processors (102, 202) from baseband signals to RF band signals. To this end, one or more transceivers (106, 206) may include (analog) oscillators and / or filters.

[0425] FIG. 26 illustrates a signal processing circuit for a transmission signal according to one embodiment of the present disclosure. The embodiment of FIG. 26 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, suggestions, methods, and / or operations of the embodiments may be omitted.

[0426] Referring to FIG. 26, the signal processing circuit (1000) may include a scrambler (1010), a modulator (1020), a layer mapper (1030), a precoder (1040), a resource mapper (1050), and a signal generator (1060). Although not limited thereto, the operation / function of FIG. 26 may be performed in the processor (102, 202) and / or transceiver (106, 206) of FIG. 25. The hardware elements of FIG. 26 may be implemented in the processor (102, 202) and / or transceiver (106, 206) of FIG. 25. For example, blocks 1010 through 1060 may be implemented in the processor (102, 202) of FIG. 25. Additionally, blocks 1010 to 1050 may be implemented in the processor (102, 202) of FIG. 25, and block 1060 may be implemented in the transceiver (106, 206) of FIG. 25.

[0427] The codeword can be converted into a wireless signal through the signal processing circuit (1000) of FIG. 26. Here, the codeword is an encoded bit sequence of an information block. The information block may include a transmission block (e.g., UL-SCH transmission block, DL-SCH transmission block). The wireless signal can be transmitted through various physical channels (e.g., PUSCH, PDSCH).

[0428] Specifically, a codeword can be converted into a scrambled bit sequence by a scrambler (1010). The scrambled sequence used for scrambling is generated based on an initialization value, which may include ID information of a wireless device, etc. The scrambled bit sequence can be modulated into a modulation symbol sequence by a modulator (1020). The modulation method may include pi / 2-BPSK (pi / 2-Binary Phase Shift Keying), m-PSK (m-Phase Shift Keying), m-QAM (m-Quadrature Amplitude Modulation), etc. The complex modulation symbol sequence can be mapped to one or more transmission layers by a layer mapper (1030). The modulation symbols of each transmission layer can be mapped to the corresponding antenna port(s) by a precoder (1040) (precoding). The output z of the precoder (1040) can be obtained by multiplying the output y of the layer mapper (1030) by an N*M precoding matrix W. Here, N is the number of antenna ports and M is the number of transmission layers. Here, the precoder (1040) can perform precoding after performing transform precoding (e.g., DFT transform) on the complex modulation symbols. Additionally, the precoder (1040) can perform precoding without performing transform precoding.

[0429] A resource mapper (1050) can map the modulation symbols of each antenna port to a time-frequency resource. The time-frequency resource may include multiple symbols (e.g., CP-OFDMA symbols, DFT-s-OFDMA symbols) in the time domain and multiple subcarriers in the frequency domain. A signal generator (1060) generates a radio signal from the mapped modulation symbols, and the generated radio signal can be transmitted to another device through each antenna. To this end, the signal generator (1060) may include an Inverse Fast Fourier Transform (IFFT) module, a Cyclic Prefix (CP) inserter, a Digital-to-Analog Converter (DAC), a frequency uplink converter, etc.

[0430] The signal processing process for a received signal in a wireless device can be configured as the inverse of the signal processing process (1010–1060) of FIG. 26. For example, a wireless device (e.g., 100, 200 in FIG. 25) can receive a wireless signal from the outside through an antenna port / transceiver. The received wireless signal can be converted into a baseband signal through a signal restorer. To this end, the signal restorer may include a frequency downlink converter, an analog-to-digital converter (ADC), a CP remover, and a Fast Fourier Transform (FFT) module. Subsequently, the baseband signal can be restored into a codeword through a resource de-mapper process, a postcoding process, a demodulation process, and a de-scrambling process. The codeword can be restored into the original information block through decoding. Accordingly, a signal processing circuit (not shown) for a received signal may include a signal restorer, a resource de-mapper, a postcoder, a demodulator, a de-scrambler, and a decoder.

[0431] FIG. 27 illustrates a wireless device according to one embodiment of the present disclosure. The wireless device may be implemented in various forms depending on the use-example / service (see FIG. 24). The embodiment of FIG. 27 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, proposals, methods, and / or operations of the embodiments may be omitted.

[0432] Referring to FIG. 27, the wireless device (100, 200) corresponds to the wireless device (100, 200) of FIG. 25 and may be composed of various elements, components, units / parts, and / or modules. For example, the wireless device (100, 200) may include a communication unit (110), a control unit (120), a memory unit (130), and additional elements (140). The communication unit may include a communication circuit (112) and transceiver(s) (114). For example, the communication circuit (112) may include one or more processors (102, 202) and / or one or more memories (104, 204) of FIG. 25. For example, the transceiver(s) (114) may include one or more transceivers (106, 206) and / or one or more antennas (108, 208) of FIG. 25. The control unit (120) is electrically connected to the communication unit (110), the memory unit (130), and additional elements (140) and controls the general operation of the wireless device. For example, the control unit (120) may control the electrical / mechanical operation of the wireless device based on a program / code / command / information stored in the memory unit (130). Additionally, the control unit (120) may transmit information stored in the memory unit (130) to an external (e.g., another communication device) via a wireless / wired interface through the communication unit (110), or store information received from an external (e.g., another communication device) via a wireless / wired interface through the communication unit (110) in the memory unit (130).

[0433] The additional element (140) can be configured in various ways depending on the type of wireless device. For example, the additional element (140) may include at least one of a power unit / battery, an input / output unit (I / O unit), a driving unit, and a computing unit. Although not limited thereto, the wireless device may be implemented in the form of a robot (Fig. 24, 100a), a vehicle (Fig. 24, 100b-1, 100b-2), an XR device (Fig. 24, 100c), a portable device (Fig. 24, 100d), a home appliance (Fig. 24, 100e), an IoT device (Fig. 24, 100f), a digital broadcasting terminal, a hologram device, a public safety device, an MTC device, a medical device, a fintech device (or financial device), a security device, a climate / environment device, an AI server / device (Fig. 24, 400), a base station (Fig. 24, 200), a network node, etc. Wireless devices can be used in a movable or fixed location depending on the use—e.g., service.

[0434] In FIG. 27, various elements, components, units / parts, and / or modules within the wireless device (100, 200) may be entirely interconnected via a wired interface, or at least partially connected via a communication unit (110). For example, within the wireless device (100, 200), the control unit (120) and the communication unit (110) may be connected via a wire, and the control unit (120) and the first unit (e.g., 130, 140) may be connected wirelessly via the communication unit (110). Additionally, each element, component, unit / part, and / or module within the wireless device (100, 200) may include one or more additional elements. For example, the control unit (120) may be composed of one or more sets of processors. For example, the control unit (120) may be composed of a set of a communication control processor, an application processor, an Electronic Control Unit (ECU), a graphics processing processor, a memory control processor, etc. As another example, the memory unit (130) may be composed of RAM (Random Access Memory), DRAM (Dynamic RAM), ROM (Read Only Memory), flash memory, volatile memory, non-volatile memory and / or a combination thereof.

[0435] Hereinafter, an implementation example of FIG. 27 will be described in more detail with reference to the drawings.

[0436] FIG. 28 illustrates a portable device according to one embodiment of the present disclosure. The portable device may include a smartphone, a smartpad, a wearable device (e.g., a smartwatch, smart glasses), a portable computer (e.g., a laptop, etc.). The portable device may be referred to as a Mobile Station (MS), a User Terminal (UT), a Mobile Subscriber Station (MSS), a Subscriber Station (SS), an Advanced Mobile Station (AMS), or a Wireless Terminal (WT). The embodiment of FIG. 28 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, proposals, methods, and / or operations of the embodiments may be omitted.

[0437] Referring to FIG. 28, the portable device (100) may include an antenna unit (108), a communication unit (110), a control unit (120), a memory unit (130), a power supply unit (140a), an interface unit (140b), and an input / output unit (140c). The antenna unit (108) may be configured as part of the communication unit (110). Blocks 110 to 130 / 140a to 140c each correspond to blocks 110 to 130 / 140 of FIG. 27.

[0438] The communication unit (110) can transmit and receive signals (e.g., data, control signals, etc.) with other wireless devices and base stations. The control unit (120) can control the components of the portable device (100) to perform various operations. The control unit (120) may include an AP (Application Processor). The memory unit (130) can store data / parameters / programs / code / commands required for the operation of the portable device (100). Additionally, the memory unit (130) can store input / output data / information, etc. The power supply unit (140a) supplies power to the portable device (100) and may include wired / wireless charging circuits, batteries, etc. The interface unit (140b) can support the connection between the portable device (100) and other external devices. The interface unit (140b) may include various ports (e.g., audio input / output ports, video input / output ports) for connection with external devices. The input / output unit (140c) can receive or output video information / signals, audio information / signals, data, and / or information input from a user. The input / output unit (140c) may include a camera, a microphone, a user input unit, a display unit (140d), a speaker and / or a haptic module, etc.

[0439] For example, in the case of data communication, the input / output unit (140c) acquires information / signals (e.g., touch, text, voice, image, video) input from the user, and the acquired information / signals can be stored in the memory unit (130). The communication unit (110) converts the information / signals stored in the memory into wireless signals and can directly transmit the converted wireless signals to another wireless device or to a base station. Additionally, the communication unit (110) can receive wireless signals from another wireless device or base station and then restore the received wireless signals to their original information / signals. The restored information / signals can be stored in the memory unit (130) and then output in various forms (e.g., text, voice, image, video, haptic) through the input / output unit (140c).

[0440] The claims described in this specification may be combined in various ways. For example, the technical features of the method claims in this specification may be combined to be implemented as a device, and the technical features of the device claims in this specification may be combined to be implemented as a method. Furthermore, the technical features of the method claims and the technical features of the device claims in this specification may be combined to be implemented as a device, and the technical features of the method claims and the technical features of the device claims in this specification may be combined to be implemented as a method.

Claims

1. Regarding the method, A first device acquires information related to a first reference signal occasion; The first device performs the detection of at least one event within a first window associated with the first reference signal occupation; and A method comprising the step of the first device determining that a reference signal has been received on the first reference signal occupation based on the detection of at least one event within the first window.

2. In Paragraph 1, (i) one or more windows are set up in relation to the first reference signal occupation, and (ii) the reference signal is determined to have been received on the first reference signal occupation based on the detection of at least one event within the first window among the one or more windows.

3. In Paragraph 1, (i) one or more reference signal occupations including the first reference signal occupation are set in relation to the first window, and (ii) a reference signal is determined to have been received for each of the one or more reference signal occupations based on the detection of at least one event within the first window.

4. In Paragraph 1, A method in which the start of the first window is set to at least one of (i) the first symbol after the last symbol associated with the first reference signal occupation, (ii) the first symbol after the gap interval from the last symbol associated with the first reference signal occupation, or (iii) the symbol before the gap interval from the last symbol associated with the first reference signal occupation.

5. In Paragraph 1, A method in which the termination of the first reference signal occupation is set to at least one of (i) the first symbol prior to the start symbol of the first window, (ii) the symbol prior to the gap interval from the start symbol of the first window, or (iii) the first symbol after the gap interval from the start symbol of the first window.

6. In Paragraph 1, A method wherein the first reference signal occupation is at least one of the following among one or more reference signal occupations associated with the first window: (i) the reference signal occupation closest to the start of the first window, (ii) the reference signal occupation closest to the gap interval set prior to the start of the first window, (iii) the reference signal occupation included within the time interval prior to the start of the first window, or (iv) the reference signal occupation included within the time interval prior to the gap interval set prior to the start of the first window.

7. In Paragraph 1, A method wherein the first window is at least one of one or more windows associated with the first reference signal occupation, of (i) the window closest to the first reference signal occupation, (ii) the window closest to the gap interval set after the first reference signal occupation, (iii) a window included within the time interval after the first reference signal occupation, or (iv) a window included within the time interval after the gap interval set after the first reference signal occupation.

8. In Paragraph 1, The above-described first device further includes the step of acquiring information related to the first window; wherein A method in which the first reference signal occupation associated with the first window is determined based on the fact that identifier information associated with the first reference signal occupation among one or more reference signal occupations matches identifier information associated with the reference signal occupation included in the information associated with the first window.

9. In Paragraph 1, The above-described first device further includes the step of acquiring information related to the first window; wherein A method in which the first window associated with the first reference signal occupation is determined based on the fact that identifier information associated with the first window among one or more windows matches identifier information associated with the window included in the information associated with the first reference signal.

10. In Paragraph 1, A method in which the reception of the reference signal on the first reference signal occupancy is determined to be invalid based on the fact that the first reference signal occupancy is located within a threshold time interval set based on the reception time of the periodic reference signal.

11. In Paragraph 1, A method in which, based on the first reference signal occupation comprising a plurality of sub-reference signal occupations, the reference signal is determined to be received on a first sub-reference signal occupation having a spatial relation with a beam index set for a signal or channel associated with the detection of at least one event among the plurality of sub-reference signal occupations.

12. In Paragraph 1, A method wherein the detection of at least one event is at least one of (i) detection of downlink control information (DCI) related to a Paging-Radio Network Temporary Identifier (P-RNTI) in a search space related to paging, (ii) detection of a DCI related to a Random Access-Radio Network Temporary Identifier (RA-RNTI) in a search space related to random access, or (iii) detection of a DCI related to a System Information-Radio Network Temporary Identifier (SI-RNTI) in a search space related to receiving system information.

13. In Paragraph 1, A method based on one or more windows being set up in relation to the first reference signal occupation, wherein the type of event expected to be detected on the first window among the one or more windows and the type of event expected to be detected on the second window are different.

14. In the first device, At least one transmitter / receiver; At least one processor; and The first device comprises at least one memory connected to the at least one processor and storing instructions, wherein the instructions are executed by the at least one processor: To obtain information related to the first reference signal occasion; To perform detection of at least one event within a first window associated with the first reference signal occupation; and A first device that determines that a reference signal has been received on the first reference signal occupation based on the detection of at least one event within the first window.

15. In a processing device configured to control a first device, At least one processor; and The first device comprises at least one memory connected to the at least one processor and storing instructions, wherein the instructions are executed by the at least one processor: To obtain information related to the first reference signal occasion; To perform detection of at least one event within a first window associated with the first reference signal occupation; and A processing device that determines that a reference signal has been received on the first reference signal occupation based on the detection of at least one event within the first window.

16. A non-transient computer-readable storage medium that records instructions, When executed, the above instructions cause the first device: To obtain information related to the first reference signal occasion; To perform detection of at least one event within a first window associated with the first reference signal occupation; and A non-transient computer-readable storage medium that determines that a reference signal has been received on the first reference signal occupation based on the detection of at least one event within the first window.

17. Regarding the method, A step in which the second device transmits information related to a first reference signal occasion to the first device; The step of the second device transmitting information related to the first window to the first device; and The second device transmits a reference signal to the first device on the first reference signal occupation; comprising, A method in which the reception of the reference signal on the first reference signal occupation is determined to be valid based on the detection of at least one event within the first window associated with the first reference signal occupation by the first device.

18. In the second device, At least one transmitter / receiver; At least one processor; and The second device comprises at least one memory connected to the at least one processor and storing instructions, wherein the instructions are executed by the at least one processor: To cause the first device to transmit information related to the first reference signal occasion; The first device is made to transmit information related to the first window; and The first device is made to transmit a reference signal on the first reference signal occupation, A second device that determines that the reception of the reference signal on the first reference signal occupation is valid based on the detection of at least one event within the first window associated with the first reference signal occupation by the first device.

19. In a processing device configured to control a second device, At least one processor; and The second device comprises at least one memory connected to the at least one processor and storing instructions, wherein the instructions are executed by the at least one processor: To cause the first device to transmit information related to the first reference signal occasion; The first device is made to transmit information related to the first window; and The first device is made to transmit a reference signal on the first reference signal occupation, A processing device that determines that the reception of the reference signal on the first reference signal occupation is valid based on the detection of at least one event within the first window associated with the first reference signal occupation by the first device.

20. A non-transient computer-readable storage medium that records instructions, When executed, the above commands cause the second device: To cause the first device to transmit information related to the first reference signal occasion; The first device is made to transmit information related to the first window; and The first device is made to transmit a reference signal on the first reference signal occupation, A non-transient computer-readable storage medium in which the reception of the reference signal on the first reference signal occupation is determined to be valid based on the detection of at least one event within the first window associated with the first reference signal occupation by the first device.

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