Low-power wake-up signal operation based on multi-cell and carrier

Abstract

An operating method of a first device (100) in a wireless communication system is presented. The method may comprise the steps of: receiving a low-power wake-up signal in a first low-power wake-up signal occasion related to a first cell and determined on the basis of a first paging occasion related to the first cell and a low-power wake-up signal occasion-paging occasion offset value related to the first cell, which are received from a first base station (300) providing the first cell; and monitoring, on the basis of the low-power wake-up signal, a paging message in a second paging occasion related to a second cell provided by a second base station (400).

Description

Multi-cell and carrier-based low-power weather signal operation

[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: 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 may represent an example of the requirements for a 6G system.

[0004] Maximum data rate per device 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 driving Fully XR Fully haptic communication Fully

[0005] According to one embodiment of the present disclosure, a method that can be performed by a first device may be provided. For example, the method may include: receiving a low-power wake-up signal opportunity-paging opportunity offset value associated with the first cell from a first base station providing a first cell; determining a first low-power wake-up signal opportunity associated with the first cell based on a first paging opportunity associated with the first cell and the low-power wake-up signal opportunity-paging opportunity offset value; receiving a low-power wake-up signal at the first low-power wake-up signal opportunity; and monitoring a paging message at a second paging opportunity associated with a second cell provided by a second base station based on the low-power wake-up signal.

[0006] According to one embodiment of the present disclosure, a first device 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 being executed by the at least one processor, the first device may: receive a low-power wake-up signal opportunity-paging opportunity offset value associated with the first cell from a first base station providing a first cell; determine a first low-power wake-up signal opportunity associated with the first cell based on a first paging opportunity associated with the first cell and the low-power wake-up signal opportunity-paging opportunity offset value; receive a low-power wake-up signal at the first low-power wake-up signal opportunity; and monitor a paging message at a second paging opportunity associated with a second cell provided by a second base station based on the low-power wake-up signal.

[0007] 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: receive a low-power wake-up signal opportunity-paging opportunity offset value associated with the first cell from a first base station providing a first cell; determine a first low-power wake-up signal opportunity associated with the first cell based on a first paging opportunity associated with the first cell and the low-power wake-up signal opportunity-paging opportunity offset value; receive a low-power wake-up signal at the first low-power wake-up signal opportunity; and monitor a paging message at a second paging opportunity associated with a second cell provided by a second base station based on the low-power wake-up signal.

[0008] According to one embodiment of the present disclosure, a non-transient computer-readable storage medium recording commands may be provided. For example, when executed, the commands may cause a first device to: receive a low-power wake-up signal opportunity-paging opportunity offset value associated with the first cell from a first base station providing a first cell; determine a first low-power wake-up signal opportunity associated with the first cell based on a first paging opportunity associated with the first cell and the low-power wake-up signal opportunity-paging opportunity offset value; receive a low-power wake-up signal at the first low-power wake-up signal opportunity; and monitor a paging message at a second paging opportunity associated with a second cell provided by a second base station based on the low-power wake-up signal.

[0009] According to one embodiment of the present disclosure, a method that can be performed by a second device may be provided. For example, the method comprises: transmitting to a first device a low-power wake-up signal opportunity-paging opportunity offset value associated with a first cell provided by a second device, wherein a first low-power wake-up signal opportunity associated with the first cell is determined based on a first paging opportunity associated with the first cell and the low-power wake-up signal opportunity-paging opportunity offset value; and transmitting to the first device a low-power wake-up signal at the first low-power wake-up signal opportunity, wherein a paging message may be monitored by the first device at a second paging opportunity associated with a second cell provided by a third device based on the low-power wake-up signal.

[0010] According to one embodiment of the present disclosure, a second device 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 being executed by the at least one processor, the second device may: transmit to the first device a low-power wake-up signal opportunity-paging opportunity offset value associated with a first cell provided by the second device, wherein a first low-power wake-up signal opportunity associated with the first cell is determined based on the first paging opportunity associated with the first cell and the low-power wake-up signal opportunity-paging opportunity offset value; and transmit to the first device a low-power wake-up signal at the first low-power wake-up signal opportunity, wherein, based on the low-power wake-up signal, a paging message may be monitored by the first device at a second paging opportunity associated with a second cell provided by a third device.

[0011] FIG. 1 illustrates a communication procedure between devices according to one embodiment of the present disclosure.

[0012] FIG. 2 shows a radio protocol architecture according to one embodiment of the present disclosure.

[0013] FIG. 3 shows the structure of a wireless frame according to one embodiment of the present disclosure.

[0014] FIG. 4 shows a slot structure of a frame according to one embodiment of the present disclosure.

[0015] FIG. 5 shows an example of a BWP according to one embodiment of the present disclosure.

[0016] FIG. 6 shows a communication structure that can be provided in a 6G system according to one embodiment of the present disclosure.

[0017] FIG. 7 illustrates an example of a communication scenario based on a 6G system according to an embodiment of the present disclosure.

[0018] FIG. 8 illustrates a procedure for transmitting system information for THz communication according to one embodiment of the present disclosure.

[0019] FIG. 9 shows a flowchart of the operation of a terminal performing one or more physical channels / signal transmissions to which the method proposed in the present disclosure can be applied, according to one embodiment of the present disclosure.

[0020] FIG. 10 shows a sequence of operations of a base station performing one or more physical channels / signal transmissions to which the method proposed in the present disclosure can be applied, according to one embodiment of the present disclosure.

[0021] FIG. 11 illustrates signaling between a base station and a terminal performing one or more physical channels / signal transmission and reception, to which the method proposed in the present disclosure can be applied, according to one embodiment of the present disclosure.

[0022] FIG. 12 illustrates a cross-cell low-power wake signal (e.g., LP-WUS) operation according to one embodiment of the present disclosure.

[0023] FIG. 13 illustrates a procedure of a method that can be performed by a first device according to one embodiment of the present disclosure.

[0024] FIG. 14 illustrates the procedure of a method that can be performed by a second device according to one embodiment of the present disclosure.

[0025] FIG. 15 shows a communication system (1) according to one embodiment of the present disclosure.

[0026] FIG. 16 shows a wireless device according to one embodiment of the present disclosure.

[0027] FIG. 17 shows a signal processing circuit for a transmission signal according to one embodiment of the present disclosure.

[0028] FIG. 18 shows a wireless device according to one embodiment of the present disclosure.

[0029] FIG. 19 shows a portable device according to one embodiment of the present disclosure.

[0030] 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."

[0031] 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."

[0032] 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."

[0033] 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."

[0034] 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 (for example, PDCCH)," "PDCCH" may be proposed as an example of "control information."

[0035] In the following explanation, 'when, if, in case of' can be replaced with 'based on'.

[0036] In the present disclosure, the device acquiring information may include the information being (pre)set to the device, the information being received by the device from another entity, and the device generating the information.

[0037] Technical features described individually within one drawing in this disclosure may be implemented individually or simultaneously.

[0038] 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.

[0039] In the present disclosure, "configured or defined" may be interpreted as being configured or pre-configured to a device through pre-defined signaling from a base station or network (e.g., SIB, MAC, RRC, DCI (downlink control information), etc.). In the present disclosure, "configured or defined" may be interpreted as being configured or pre-configured to a device through pre-defined signaling from another device (e.g., MAC, RRC, SCI (sidelink control information), control information signaled between devices, etc.). In the present disclosure, "configured or defined" may be interpreted as being pre-configured to a device.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] Referring to FIG. 1, in step S101, the first device and the second device can perform synchronization. For example, the first device may be a terminal and / or at least one of the devices proposed in the present disclosure. For example, the second device 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 may perform an initial cell search operation. For example, the first device may detect at least one synchronization signal transmitted according to a rule predefined by the second device. Here, for example, the synchronization signal may include a plurality of synchronization signals (e.g., primary synchronization signal, secondary synchronization signal, etc.) classified according to structure or use. Through this, the first device can identify the boundaries of the frame, subframe, time unit, slot, and / or symbol of the second device, and the first device can obtain information about the second device (e.g., cell identifier).

[0045] In step S103, the first device may obtain system information transmitted by the second device. For example, the system information may include information related to the attributes, characteristics, and / or capabilities of the second device that are necessary to connect to the second device 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 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.

[0046] In step S105, the first device and the second device may perform a random access procedure. For example, the first device may 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 obtained through system information (e.g., channel location, channel structure, structure of supported preamble, etc.). For example, the first device may transmit a preamble (e.g., Msg1) through the random access channel, and the first device may receive a random access response message (e.g., Msg2). The first device may transmit a message (e.g., Msg3) containing information related to the first device (e.g., identification information) to the second device using scheduling information included in the random access response message, and the first device may receive a message (e.g., Msg4) for contention resolution and / or connection establishment. For example, Msg1 and Msg3 can be transmitted and received as a single message (e.g., MsgA), and / or Msg2 and Msg4 can be transmitted and received as a single message (e.g., MsgB).

[0047] In step S107, the first device and the second device may perform signaling of control information. Here, for example, the control information may be defined in various layers, such as a layer controlling the connection (e.g., a radio resource control (RRC) layer), a layer handling mapping between a logical channel and a transmission channel (e.g., a media access control (MAC) layer), and a layer handling a physical channel (e.g., a physical (PHY) layer). For example, the first device and the second device 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.

[0048] In step S109, the first device and the second device may transmit and / or receive data. For example, the first device and the second device may process data based on signaling of control information and transmit and / or receive it. For example, when transmitting data, the first device or the second device 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 or the second device 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.

[0049] For example, the layers of the radio interface protocol between the first device and the second device 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 and the second device. To this end, for example, the RRC layer can exchange RRC messages between the first device and the second device.

[0050] 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. 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.

[0051] 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, for example, 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.

[0052] 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.

[0053] 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).

[0054] 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.

[0055] 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.

[0056] 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.

[0057] For example, a base station-to-terminal transmission (e.g., DL transmission) channel may include at least one of a broadcast channel (BCH) that transmits system information and / or a downlink 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 downlink 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).

[0058] FIG. 3 shows the structure of a wireless frame according to one embodiment of the present disclosure. The embodiment of FIG. 3 can be combined with various embodiments of the present disclosure.

[0059] Referring to FIG. 3, radio frames may be used, for example, in uplink transmission, base station-to-terminal transmission (e.g., DL transmission), and / or device-to-device transmission. For example, a radio frame may have a length of 10 ms and may be defined as two 5 ms half-frames (HF). For example, a half-frame may contain five 1 ms subframes (SF). For example, a subframe may be divided into one or more slots, and the number of slots within a subframe may be determined by subcarrier spacing (SCS). For example, each slot may contain 12 or 14 OFDM(A) symbols according to a cyclic prefix (CP).

[0060] For example, when normal CP is used, each slot may contain 14 symbols. For example, when extended CP is used, each slot may contain 12 symbols. Here, for example, the symbols may include OFDM symbols (or CP-OFDM symbols) and SC-FDMA (single carrier-FDMA) symbols (or DFT-s-OFDM (Discrete Fourier Transform-spread-OFDM) symbols).

[0061] Table 2 below shows the number of symbols per slot (N) according to the SCS setting (u) when Normal CP or Extended CP is used. slot symb ), number of slots per frame (N frame,u slot ) and the number of slots per subframe (N subframe,u slot ) exemplifies.

[0062] CP Type SCS (15*2 u )N slot symb N frame,u slot N subframe,u slot Normal CP 15kHz (u=0) 1410 130kHz (u=1) 1420 260kHz (u=2) 1440 4120kHz (u=3) 1480 8240kHz (u=4) 14160 16 Extended CP 60kHz (u=2) 1240 4

[0063] For example, OFDM(A) numerology (e.g., SCS, CP length, etc.) may be configured differently among multiple cells merged into a single terminal. Accordingly, the (absolute time) interval of a time resource (e.g., subframe, slot, or TTI (transmit time interval)) composed of the same number of symbols may be configured differently among the merged cells. For example, in the present disclosure, time resources such as subframes, slots, TTI, etc. may be referred to as time units.

[0064] For example, multiple numerologies or SCSs may be supported to support various services. For example, if the SCS is 15 kHz, a wide area in traditional cellular bands may be supported, and if the SCS is 30 kHz / 60 kHz, dense-urban, lower latency, and wider carrier bandwidth may be supported. For example, if the SCS is 60 kHz or higher, a bandwidth greater than 24.25 GHz may be supported to overcome phase noise.

[0065] FIG. 4 shows a slot structure of a frame according to one embodiment of the present disclosure. The embodiment of FIG. 4 can be combined with various embodiments of the present disclosure.

[0066] Referring to FIG. 4, for example, a slot may include multiple symbols in the time domain. For example, a carrier may include multiple subcarriers in the frequency domain. For example, a resource block (RB) may be defined as multiple consecutive subcarriers in the frequency domain. For example, a bandwidth part (BWP) may be defined as multiple consecutive (P)RBs ((physical) resource blocks) in the frequency domain and may correspond to a single numerology (e.g., SCS, CP length, etc.). For example, a carrier may include up to N BWPs (where N is a positive integer). For example, data communication may be performed through an active BWP. For example, each element may be referred to as a resource element (RE) in a resource grid and may be mapped to a single complex symbol.

[0067] For example, a BWP can be a continuous set of PRBs in a given numerology. For example, a PRB can be selected from a continuous subset of common resource blocks (CRBs) for a given numerology on a given carrier.

[0068] For example, the BWP may be at least one of an active BWP, an initial BWP, and / or a default BWP. For example, the terminal may not monitor downlink radio link quality on DL BWPs other than the active DL BWP on the PCell (primary cell). For example, the terminal may not receive PDCCH (physical downlink control channel), PDSCH (physical downlink shared channel), or CSI-RS (channel state information-reference signal) (except for RRM (radio resource management)) outside of the active DL BWP. For example, the terminal may not trigger CSI (channel state information) reporting for an inactive DL BWP. For example, the terminal may not transmit PUCCH (physical uplink control channel) or PUSCH (physical uplink shared channel) outside of the active UL (uplink) BWP. For example, for the downlink, the initial BWP can be given as a consecutive set of resource blocks (RBs) for the remaining minimum system information (RMSI) CORESET (control resource set) (set by the physical broadcast channel (PBCH)). For example, for the uplink, the initial BWP can be given by the system information block (SIB) for the random access procedure. For example, the default BWP can be set by the upper layer. For example, the initial value of the default BWP can be the initial DL BWP.For energy saving, if the terminal fails to detect DCI (downlink control information) for a certain period, the terminal can switch the active BWP of the terminal to the default BWP.

[0069] In the present disclosure, PSCCH may be replaced with a control channel, a physical control channel, a control channel associated with a sidelink, a physical control channel associated with a sidelink, a physical control channel between devices, etc. In the present disclosure, PSSCH may be replaced with a shared channel, a physical shared channel, a shared channel associated with a sidelink, a physical shared channel associated with a sidelink, a physical shared channel between devices, etc. For example, SL communication may be replaced with device-to-device communication. For example, in terms referring to various channels and / or signals associated with SL communication, the SL portion may be replaced with "between devices".

[0070] In the present disclosure, PUCCH may be replaced with a control channel, a physical control channel, a control channel associated with an uplink, a physical control channel associated with an uplink, a device-to-base station physical control channel, a terminal-to-base station physical control channel, etc. In the present disclosure, a terminal-to-base station physical sharing channel (e.g., PUSCH) may be replaced with a sharing channel, a physical sharing channel, a sharing channel associated with an uplink, a physical sharing channel associated with an uplink, a device-to-base station physical sharing channel, a terminal-to-base station physical sharing channel, etc. For example, UL communication may be replaced with terminal-to-base station communication or device-to-base station communication. For example, in terms referring to various channels and / or signals associated with UL communication, the UL portion may be replaced with "device-to-base station" or "terminal-to-base station".

[0071] In the present disclosure, a base station-to-terminal physical control channel (e.g., PDCCH) may be replaced with a control channel, a physical control channel, a control channel associated with a downlink, a physical control channel associated with a downlink, a base station-to-device physical control channel, a base station-to-terminal physical control channel, etc. In the present disclosure, a base station-to-terminal physical sharing channel (e.g., PDSCH) may be replaced with a sharing channel, a physical sharing channel, a sharing channel associated with a downlink, a physical sharing channel associated with a downlink, a base station-to-device physical sharing channel, a base station-to-terminal physical sharing channel, etc. For example, DL communication may be replaced with base station-to-device communication or base station-to-terminal communication. For example, in terms referring to various channels and / or signals associated with DL communication, the DL portion may be replaced with "base station-to-device" or "base station-to-terminal".

[0072] FIG. 5 illustrates an example of a BWP according to an embodiment of the present disclosure. The embodiment of FIG. 5 may be combined with various embodiments of the present disclosure. In the embodiment of FIG. 5, it is assumed that there are three BWPs.

[0073] Referring to FIG. 5, for example, a common resource block (CRB) may be a numbered carrier resource block from one end of the carrier band to the other, and a PRB may be a numbered resource block within each BWP. For example, point A may indicate a common reference point for the resource block grid.

[0074] For example, BWP is point A, offset from point A (N start BWP ) and bandwidth (N size BWPIt can be set by ). For example, point A may be an external reference point of the PRB of a carrier where the subcarrier 0 of all numerologies (e.g., all numerologies supported by the network in that carrier) are aligned. For example, offset may be the PRB interval between the lowest subcarrier in a given numerology and point A. For example, bandwidth may be the number of PRBs in a given numerology.

[0075] FIG. 6 illustrates a communication structure that can be provided in a 6G system according to one embodiment of the present disclosure. The embodiment of FIG. 6 can be combined with various embodiments of the present disclosure.

[0076] 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.

[0077] - 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.

[0078] - 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.

[0079] - Large-scale MIMO technology

[0080] - Hologram beamforming (HBF)

[0081] - Optical wireless technology

[0082] - Free Space Optical Transmission Backhaul Network (FSO backhaul network)

[0083] - Quantum communication

[0084] - Cell-free communication

[0085] - Integration of wireless information and power transmission

[0086] - Integration of wireless communication and sensing

[0087] - Integrated access and backhaul network

[0088] - Big data analysis

[0089] - Reconfigurable intelligent metasurface

[0090] - Metaverse

[0091] - blockchain

[0092] - 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).

[0093] - 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).

[0094] - 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.

[0095] - Integrated Sensing and Communication (ISAC): Wireless sensing is a technology that uses radio frequencies to determine the instantaneous linear velocity, angle, distance (range), etc., of an object, thereby obtaining information about the characteristics of the environment and / or objects within the environment.

[0096] - 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.

[0097] FIG. 7 illustrates an example of a communication scenario based on a 6G system according to an embodiment of the present disclosure. The embodiment of FIG. 7 can be combined with various embodiments of the present disclosure.

[0098] Referring to FIG. 7, NTN communication can be performed based on a satellite network, HIBS (high-altitude platform stations (HAPS) as international mobile telecommunications (IMT) base stations (BS)), and an aeronautical communication-capable terminal (e.g., AAM). For example, to improve coverage, devices such as a satellite network, HIBS, and an aeronautical communication-capable terminal (e.g., AAM) can act as relays. For example, an AAM can communicate with a base station, a satellite network, etc., and / or an AAM can communicate directly with a terminal, another AAM, etc.

[0099] Transmitting system information (e.g., MIB) in the THz frequency band can be inefficient because, in the case of high frequency bands, beam sweeping must be performed more frequently to cover the entire area of ​​the cell as the beam width becomes narrow. In particular, transmitting system information in this manner can be even more inefficient when there are not many users in the cell. Accordingly, a system information transmission procedure as shown in FIG. 8 below may be used.

[0100] FIG. 8 illustrates a procedure for transmitting system information for THz communication according to one embodiment of the present disclosure. The embodiment of FIG. 8 may be combined with various embodiments of the present disclosure.

[0101] The embodiment of FIG. 8 was created considering a THz situation, but it is also applicable in a 6G communication environment where THz is not applied. In addition, the procedure illustrated in FIG. 8 can be combined with various embodiments of the present disclosure described below. For example, the embodiments described below can be performed based on system information obtained by the procedure illustrated in FIG. 8.

[0102] Referring to FIG. 8, in step S801, the base station (80) can transmit system information of cell #1 through cell #2. For example, the base station (820) provides at least two cells, where cell #1 uses a THz frequency band and cell #2 uses a frequency band other than the THz frequency band. Here, the system information may include at least one of SFN, PDCCH configuration for SIB1, cell barring, cell re-selection, and subcarrier spacing generated at the higher layer, and at least one of SFN, half frame indicator, and SSB index generated at the physical layer. To this end, for example, cell #1 and cell #2 may have a secondary cell and primary cell relationship.

[0103] In step S803, the terminal (810) can obtain synchronization for cell #1. Synchronization can be obtained by detecting a synchronization signal. Generally, synchronization is obtained prior to receiving system information, but since the system information of cell #1 is received in cell #2, synchronization for cell #1 can be obtained after receiving system information. For example, the terminal (810) can obtain synchronization based on system information. However, unlike FIG. 8, according to another example, synchronization acquisition can be performed prior to step S801.

[0104] In step S805, the terminal (810) may transmit a signal to connect to cell #1. For example, the signal may include a random access preamble. The structure of the signal and the resource (e.g., channel) for transmitting the signal may be identified through system information. Subsequently, in step S807, the terminal (810) and the base station (820) may perform a connection procedure to cell #1 and perform communication. In this step, operations according to various embodiments described below may be performed.

[0105] The procedure described with reference to FIG. 8 may be performed when the terminal (801) first connects to cell #1 of the base station (820). Alternatively, a similar procedure may be performed when the terminal (801) handovers to cell #1 of the base station (820). However, in the case of a handover, the system information of cell #1 may be received from a cell of a different base station other than cell #2 of the base station (820).

[0106] The low-power wake-up signal / receiver is described below.

[0107] 5G systems have been designed and developed for both mobile telephony and vertical use cases. In 5G, in addition to latency, reliability, and availability, device energy efficiency can also be critical. Currently, 5G devices may need to be recharged on a weekly or daily basis, depending on an individual's usage time. Typically, 5G devices can consume tens of milliwatts in RRC idle / inactive states and hundreds of milliwatts when RRC connected. Designs that extend battery life can be essential for improving energy efficiency and enhancing the user experience.

[0108] Energy efficiency can be even more critical for devices without a continuous energy source, such as those using small rechargeable and single coin cell batteries. In vertical use cases, sensors and actuators can be widely used for monitoring, measurement, charging, etc. Generally, these batteries cannot be recharged and can be expected to last for at least several years, as described in the technical literature. Wearable devices may include smartwatches, rings, e-health devices, and medical monitoring devices. With typical battery capacities, it may be difficult to last up to 1 to 2 weeks as needed.

[0109] Power consumption may vary depending on the length of the configured weather period, such as the phasing cycle. To meet the battery life requirements mentioned above, a large value of extended discontinuous reception (e.g., eDRX) cycles is used, which is expected to result in longer latency; this may not be suitable for services requiring both long battery life and short latency. For example, in fire detection and extinguishing use cases, fire shutters must close and sprinklers activated by actuators must be activated within 1 to 2 seconds after a fire is detected by a sensor; however, long extended discontinuous reception (e.g., eDRX) cycles cannot meet the latency requirements, so extended discontinuous reception (e.g., eDRX) may not be suitable for use cases where latency is critical.

[0110] Currently, since the terminal must wake up periodically during discontinuous reception (e.g., DRX) cycles, power consumption during periods without signal or data traffic may account for the majority of power consumption. Power consumption could be drastically reduced if the terminal could wake up only when triggered, such as during paging. This can be achieved by using a separate receiver capable of triggering the main radio with a wake-up signal and monitoring the wake-up signal with ultra-low power consumption. The main radio operates for data transmission and reception and can be turned off or set to hibernation mode when not powered on.

[0111] The terms that may be used in this document are as follows.

[0112] - Main Radio (MR): A transmit / receive module operating for NR signals / channels, excluding signals / channels related to low-power weather.

[0113] - Low-power weather receiver (e.g., LP-WUR(LR)): A receiving module that operates to receive / process signals / channels related to low-power weather.

[0114] The following use cases can be considered for low-power weather signals / weather radios (e.g., LP-WUS / WUR):

[0115] - IoT use cases including industrial wireless sensors, controllers, actuators, etc.

[0116] - Examples of wearable devices such as smartwatches, rings, e-health related devices, and medical monitoring devices,

[0117] - eMBB examples including XR / smart glasses, smartphones, etc.

[0118] The following describes technology related to low-power weather signals / weather radios (e.g., LP-WUS / WUR).

[0119] The following investigations can be conducted regarding research on low-power weather signals and receivers for NR.

[0120] - Low-power weather signals and receivers including power saving effects, coverage, system overhead impact, network energy impact, and other related aspects

[0121] - Provision of analysis on receiver architecture, power consumption, noise levels, etc. for low-power weather receivers

[0122] - L1 design and procedure changes required to support low-power weather signal and link performance evaluation

[0123] - Changes to the upper-layer protocols required to support low-power weather signals

[0124] - Related upper-level influence

[0125] It was observed that in RRC idle / active mode, when sufficient relaxation is applied to the main radio (e.g., MR) RRM measurement, significant terminal power saving gains (up to 90% or more) can be obtained by triggering terminal main radio (e.g., MR) paging monitoring using a low-power wake signal / wake radio (e.g., LP-WUS / WUR) compared to the existing idle mode discontinuous reception (e.g., I-DRX) operation (with and without paging early indication (e.g., PEI). Additionally, compared to the existing extended discontinuous reception (e.g., extended DRX; eDRX) operation, if the low-power wake signal (e.g., LP-WUS) monitoring and the corresponding paging monitoring after the main radio (e.g., MR) wake are performed without restriction within the paging time window (e.g., PTW) of the existing extended discontinuous reception (e.g., eDRX), significant reduction in paging latency and moderate terminal power saving gains are observed.

[0126] In RRC connection mode, it was observed that, compared to existing terminal power saving techniques, moderate terminal power saving gains (up to 10% or more) with minimal capacity impact can be obtained by triggering monitoring of the terminal's main radio (e.g., MR) base station-to-terminal physical control channel (e.g., PDCCH) using low-power wake signal / wake radio (e.g., LP-WUS / WUR) in various types of XR traffic and system load scenarios. Additionally, it was observed that significant terminal power saving gains (up to 60% or more) and moderate UPT improvements (up to 10% or more) can be obtained for FTP and IM traffic when the terminal main radio (e.g., MR) is switched to a maximum sleep state during NR low-power wake signal (e.g., LP-WUS) monitoring. Furthermore, in recent research, the feasibility of providing cell RRM measurement offloading from the terminal's main radio (e.g., MR) to the low-power wake receiver (e.g., LP-WUR) has been verified through reasonable evaluation methodologies. In addition, several issues were identified at the upper level that could be further discussed at the WI stage.

[0127] Below, the paging procedure for idle / inactive states in 5G NR is described.

[0128] In 5G NR, if a terminal does not have data transmissions / receptions in progress, the terminal may enter RRC_IDLE or RRC_INACTIVE mode to save power. When base station-to-terminal data (e.g., DL data) for the terminal arrives at the network, the network may send a paging message at a paging occasion (PO) to trigger an RRC setup procedure, an RRC Connection Resume procedure, etc. A paging occasion (e.g., PO) is a set of monitoring times for a physical downlink control channel (e.g., PDCCH) and may consist of multiple time slots (e.g., subframes or OFDM symbols), and at a paging occasion (e.g., PO), base station-to-terminal control information (e.g., downlink control information; DCI) having a CRC scrambled with P-RNTI may be transmitted. For example, the following information may be transmitted by a base station-to-terminal control information (e.g., DCI) format (e.g., DCI format 1_0) having a CRC scrambled with P-RNTI:

[0129] - Short Messages Indicator according to Table 3

[0130] - Short messages according to Table 4. In Table 4, bit 1 is the most significant bit (MSB).

[0131] - Frequency Domain Resource Allocation

[0132] - Time domain resource allocation

[0133] - VRB-to-PRB mapping according to Table 5

[0134] - Modulation and coding methods

[0135] - Transport Block (TB) Scaling

[0136] - Tracking Reference Signal (TRS) Availability Indicator

[0137] - Reserved bits.

[0138] Bit Fields Short Message Indicator 00 Reserved 01 Only scheduling information for paging and TRS availability indicators are displayed in base station-to-terminal control information (e.g., DCI) if trs-ResourceSetConfig is configured 10 Only short messages and TRS availability indicators are displayed in base station-to-terminal control information (e.g., DCI) if trs-ResourceSetConfig is configured 11 Both scheduling information for paging, TRS availability indicators, and short messages are included in base station-to-terminal control information (e.g., DCI) if trs-ResourceSetConfig is configured

[0139] Bit short message 1systemInfoModification1 if set to: Indication of Broadcast Control Channel (BCCH) modifications other than SIB6, SIB7, and SIB8 2etwsAndCmasIndication1 if set to: Indication of Earthquake and Tsunami Warning System (ETWS) primary notifications and / or ETWS secondary notifications and / or Commercial Mobile Alert Service (CMAS) notifications 3stopPagingMonitoring this bit is available only when there is shared spectrum channel access and the RRC parameter nrofPDCCH-MonitoringOccasionPerSSB-InPO is present. 1 if set to: Indication that the terminal may stop monitoring base station-to-terminal physical control channel (e.g., PDCCH) time(s) for paging at this paging time as specified in the technical literature 4systemInfoModification-eDRX1 if set to: Indication of BCCH modifications other than SIB6, SIB7, and SIB8. This instruction may apply only to terminals using an extended discontinuous receive (e.g., eDRX) period longer than the broadcasting control channel (e.g., BCCH) correction period.5 - 8 It is not used in current technical literature and is ignored when received by the terminal.

[0140] Bit field mapped to index VRB-to-PRB mapping 0 Not interleaved 1 Interleaved

[0141] In the present disclosure, a base station-to-terminal physical control channel (e.g., PDCCH) carrying a base station-to-terminal control information (e.g., DCI) format having a CRC scrambled with P-RNTI is referred to as a paging base station-to-terminal physical control channel (e.g., PDCCH), and a base station-to-terminal physical shared channel (e.g., physical downlink shared channel; PDSCH) scheduled by the paging base station-to-terminal physical control channel (e.g., PDCCH) is referred to as a paging base station-to-terminal physical shared channel (e.g., PDSCH). A terminal can decode the paging base station-to-terminal physical shared channel (e.g., PDSCH) based on scheduling information (e.g., frequency domain resource allocation, modulation and coding scheme, etc.) within the paging base station-to-terminal physical control channel (e.g., PDCCH). A paging base station-to-terminal physical shared channel (e.g., PDSCH) carries paging messages, which are used for notification to one or more terminals and may include one or more terminal identifiers (IDs). For example, the paging message and / or fields within the paging message may include information related to a paging record list, lateNonCriticalExtension, nonCriticalExtension, paging group list, terminal identifier associated with the paging record, access type associated with the paging record, paging cause associated with the paging record, TMSI associated with the paging terminal identifier, RNTI associated with the paging terminal identifier, etc.

[0142] The following table provides examples of paging messages and descriptions of the fields within them.

[0143] Description of Paging Record Fields Access Type (accessType) Indicates whether the paging message was generated by a PDU session from a non-3GPP access. Paging Record List (pagingRecordList) If the network contains pagingRecordList-v1700, it contains the same number of entries and is listed in the same order as pagingRecordList (e.g., without suffixes). Paging Cause Indicates whether the paging message was generated by IMS Voice. If this field is present, it may mean that the paging entry is for IMS Voice. If the upper layer supports paging cause and this field is absent but pagingRecordList-v1700 exists, it may mean that the paging entry is for a service other than IMS Voice. Otherwise, the paging cause may not be determined.

[0144] For example, in multi-beam operations, the terminal may assume that the same paging message is repeated in all transmitted beams. The paging message may be the same for both radio access network (RAN) initiation paging and core network (CN) initiation paging.

[0145] A paging frame (PF) is a radio frame and may include one or more paging times (e.g., PO)(s) or a starting point of a paging time (e.g., PO).

[0146] For example, the terminal can monitor one paging time (e.g., PO) per discontinuous reception (e.g., DRX) cycle. The paging frame (e.g., PF) and paging time (e.g., PO) for paging can be determined by predefined formulas.

[0147] For example, in some implementations, the system frame number (SFN) for a paging frame (e.g., PF) may be determined by (SFN + PF_offset) mod T = (T div N) * (UE_ID mod N), and an index i_s indicating the index of a paging time (e.g., PO) may be determined by i_s = floor(UE_ID) mod Ns, where T is a terminal discontinuous reception (e.g., DRX) cycle and is determined by the minimum value of terminal-specific discontinuous reception (e.g., DRX) value(s) and / or default discontinuous reception (e.g., DRX) value broadcast as system information, N is the total number of paging frames in T, Ns is the number of paging times for a paging frame (e.g., PF), PF_offset is the offset used for determining the paging frame (e.g., PF), and UE_ID may be a value determined based on 5G-S-TMSI.

[0148] For example, parameters Ns regarding the number of paging times per paging frame, parameters nAndPagingFrameOffset used to derive the total number of paging frames in T, parameters nrofPDCCH-MonitoringOccasionsPerSSB-InPO regarding the number of base station-to-terminal physical control channel (e.g., PDCCH) monitoring times corresponding to SSBs in paging times, and the length of the default discontinuous reception (e.g., DRX) cycle may be signaled by SIB1, and the values ​​of N and PF_offset may be derived from the parameters nAndPagingFrameOffset.

[0149] For example, base station-to-terminal physical control channel (e.g., PDCCH) monitoring times for paging can be determined based on the parameter firstPDCCH-MonitoringOccasionOfPO, which indicates the first base station-to-terminal physical control channel (e.g., PDCCH) monitoring time for paging of each paging time (e.g., PO) of a paging frame (e.g., PF), and the parameter nrofPDCCH-MonitoringOccasionsPerSSB-InPO.

[0150] For example, the parameter firstPDCCH-MonitoringOccasionOfPO may be signaled by SIB1 for paging in the initial base station-to-terminal communication (e.g., DL link) part bandwidth (e.g., bandwidth part; BWP), and may be signaled by the corresponding part bandwidth (e.g., BWP) setting for paging in a base station-to-terminal part bandwidth (e.g., DL BWP) other than the initial base station-to-terminal communication (e.g., DL link) part bandwidth (e.g., BWP).

[0151] For example, to reduce power consumption, a terminal may use Paging Early Indication (e.g., PEI) in the RRC_IDLE and RRC_INACTIVE states. If a Paging Early Indication (e.g., PEI) setting is provided in the system information, a terminal in the RRC_IDLE or RRC_INACTIVE state that supports Paging Early Indication (e.g., PEI) may monitor Paging Early Indication (e.g., PEI) using the Paging Early Indication (e.g., PEI) parameters within the system information. The terminal monitors one Paging Early Indication (e.g., PEI) per discontinuous reception (e.g., DRX) cycle. A Paging Early Indication occurrence (e.g., PEI-occasion; PEI-O) is a set of base station-to-terminal physical control channel (e.g., PDCCH) monitoring occurrences and may consist of multiple time slots (e.g., subframes or OFDM symbols) in which the Paging Early Indication (e.g., PEI) can be sent.

[0152] For example, in multi-beam operations, the terminal may assume that the same paging early indication (e.g., PEI) is repeated in all transmitted beams. The time position of the paging early indication time (e.g., PEI-O) relative to the terminal's paging time (e.g., PO) may be determined by a reference point and an offset, said reference point being the start of a reference frame determined by a frame-level offset from the start of the first paging frame (e.g., PF)(s) associated with said paging early indication time (e.g., PEI-O), provided by pei-FrameOffset in SIB1, and said offset being a symbol-level offset from said reference point to the start of the first base station-to-terminal physical control channel (e.g., PDCCH) monitoring time of said paging early indication time (e.g., PEI-O), provided by firstPDCCH-MonitoringOccasionOfPEI-O in SIB1.

[0153] For example, if a single paging early indication time (e.g., PEI-O) is associated with the paging times (e.g., PO) of two paging frames (e.g., PF), said two paging frames (e.g., PF) may be consecutive paging frames (e.g., PF) calculated by the parameters PF_offset, T, Ns, and N. For more details regarding paging early indications (e.g., PEI), refer to the technical literature.

[0154] According to one embodiment of the present disclosure, a paging discontinuous reception (e.g., DRX) may be defined in which a terminal that is RRC_IDLE or RRC_INACTIVE is required to monitor paging channels for only one paging time (e.g., PO) per discontinuous reception (e.g., DRX) cycle. For example, the following paging discontinuous reception (e.g., DRX) cycles may be set by a network:

[0155] i) For core network initiated paging (CN-initiated paging), a default cycle is broadcast with system information, and

[0156] ii) For CN-initial paging, terminal-specific cycles can be established via non-access stratum (NAS) signaling, and

[0157] iii) For radio access network (RAN)-initiated paging, terminal-specific cycles can be established via RRC signaling.

[0158] For example, a terminal may use the shortest of the applicable discontinuous reception (e.g., DRX) cycles. For example, a terminal that is RRC_IDLE may use the shorter of the first two discontinuous reception (e.g., DRX) cycles among the three discontinuous reception (e.g., DRX) cycles, and a terminal that is RRC_INACTIVE may use the shortest of the three discontinuous reception (e.g., DRX) cycles.

[0159] The operation sequence of the terminal and the signaling operation between the base station and the terminal are described below.

[0160] FIG. 9 illustrates a flowchart of the operation of a terminal performing one or more physical channels / signal transmissions to which the method proposed in the present disclosure may be applied, according to one embodiment of the present disclosure. The embodiment of FIG. 9 may be combined with various embodiments of the present disclosure.

[0161] Referring to FIG. 9(a), a flowchart is shown of a terminal performing terminal-to-base station data transmission. For example, the terminal may receive terminal-to-base station data / channel related information. Subsequently, the terminal may receive base station-to-terminal control information for terminal-to-base station data transmission, or receive information for terminal-to-base station channel transmission. Subsequently, for example, the terminal may transmit terminal-to-base station data / channel.

[0162] At this point, for example, the terminal can check whether all the instructed data / channels have been transmitted, and if not all have been transmitted, it can perform terminal-to-base station data / channel transmission (again and / or additionally). If all have been transmitted, the above procedure may be terminated.

[0163] Referring to FIG. 9(b), a flowchart is shown of a terminal performing base station-to-terminal data reception. For example, the terminal may receive information related to base station-to-terminal data / channel. Subsequently, the terminal may receive base station-to-terminal control information for base station-to-terminal data reception, or receive information for base station-to-terminal channel reception. Subsequently, for example, the terminal may receive base station-to-terminal data / channel.

[0164] At this time, for example, the terminal can check whether all the instructed data / channels have been received, and if not all have been received, it can perform base station-to-terminal data / channel reception (again and / or additionally).

[0165] For example, if all the instructed data / channels have been received, the terminal can determine whether feedback transmission is necessary, and if feedback transmission is not necessary, the procedure can be terminated.

[0166] For example, if feedback transmission is required, the terminal may transmit feedback (e.g., HARQ-ACK transmission). Afterward, the above procedure may be terminated.

[0167] FIG. 9 is for convenience of explanation only and is not intended to limit the scope of the present disclosure. For example, the terminal-to-base station data / channel transmission and / or the base station-to-terminal data / channel transmission may include NR FR1, FR2, or FR2-2 transmission.

[0168] FIG. 10 illustrates a flowchart of the operation of a base station performing one or more physical channels / signal transmissions to which the method proposed in the present disclosure may be applied, according to one embodiment of the present disclosure. The embodiment of FIG. 10 may be combined with various embodiments of the present disclosure, and the description, function, procedure, proposal, method, and / or operation of said embodiment may be omitted.

[0169] Referring to FIG. 10(a), a flowchart is shown of a base station performing terminal-to-base station data reception. For example, the base station may transmit terminal-to-base station data / channel related information. Subsequently, the base station may transmit base station-to-terminal control information for terminal-to-base station data transmission, or transmit information for terminal-to-base station channel transmission. Subsequently, for example, the base station may receive terminal-to-base station data / channel.

[0170] At this point, for example, the base station may check whether all the designated data / channels have been received, and if not all have been received, it may perform terminal-to-base station data / channel reception (again and / or additionally). If all have been received, the above procedure may be terminated.

[0171] Referring to FIG. 10(b), a flowchart is shown of a base station performing base station-to-terminal data transmission. For example, the base station may transmit base station-to-terminal data / channel related information. Subsequently, the base station may transmit base station-to-terminal control information for receiving base station-to-terminal data, or transmit information for receiving the base station-to-terminal channel. Subsequently, for example, the base station may transmit base station-to-terminal data / channel.

[0172] At this time, for example, the base station can check whether all the designated data / channels have been transmitted, and if not all have been transmitted, it can perform base station-to-terminal data / channel transmission (again and / or additionally).

[0173] For example, if all the instructed data / channel has been transmitted, the base station can determine whether feedback reception is required, and if feedback reception is not required, the procedure can be terminated.

[0174] For example, if feedback reception is required, the base station may receive feedback (e.g., HARQ-ACK transmission). Afterward, the above procedure may be terminated.

[0175] FIG. 10 is for convenience of explanation only and does not limit the scope of the present disclosure. For example, the terminal-to-base station data / channel transmission and / or the base station-to-terminal data / channel transmission may include NR FR1, FR2, or FR2-2 transmission.

[0176] FIG. 11 illustrates signaling between a base station and a terminal performing one or more physical channels / signal transmission and reception, to which the method proposed in the present disclosure may be applied, according to one embodiment of the present disclosure. The embodiment of FIG. 11 may be combined with various embodiments of the present disclosure, and the description, function, procedure, proposal, method, and / or operation of said embodiment may be omitted.

[0177] Referring to FIG. 11 (a), the base station can transmit terminal-to-base station data / channel related information to the terminal. Subsequently, the base station can transmit base station-to-terminal control information for terminal-to-base station data transmission or information for terminal-to-base station channel transmission to the terminal. Subsequently, the terminal can transmit terminal-to-base station data / channel to the base station.

[0178] Referring to FIG. 11(b), the base station may transmit base station-to-terminal data / channel related information to the terminal. Subsequently, the base station may transmit base station-to-terminal control information for receiving base station-to-terminal data or information for receiving the base station-to-terminal channel to the terminal. Subsequently, the base station may transmit the base station-to-terminal data / channel to the terminal. Subsequently, (if configured to perform a feedback operation,) the terminal may transmit feedback (e.g., HARQ-ACK feedback) to the base station.

[0179] FIG. 11 is for convenience of explanation only and is not intended to limit the scope of the present disclosure. For example, the terminal-to-base station data / channel transmission and / or the base station-to-terminal data / channel transmission may include NR FR1, FR2, or FR2-2 transmission.

[0180] For example, in the present disclosure, transmitting or receiving a low-power wake-up signal time (e.g., LO) may mean transmitting or receiving a low-power wake-up signal (e.g., LP-WUS) during the low-power wake-up signal time (e.g., LO). For example, in the present disclosure, transmitting or receiving a low-power wake-up signal monitoring time (e.g., LMO) may mean transmitting or receiving a low-power wake-up signal (e.g., LP-WUS) during the low-power wake-up signal monitoring time (e.g., LMO). For example, in the present disclosure, transmitting or receiving a paging time (e.g., PO) may mean transmitting or receiving a paging message during the paging time (e.g., PO). For example, in the present disclosure, performing paging may mean receiving a paging message during the paging time (e.g., PO).

[0181] For example, in the present disclosure, code points can be mutually substituted / replaced with code point values.

[0182] The symbols / abbreviations / terms used in this disclosure are as follows.

[0183] ACS (Adjacent Channel Selectivity): Adjacent Channel Selectivity

[0184] ADC (Analog to Digital Converter): Analog-to-Digital Converter

[0185] ASCS (Adjacent Subcarrier Selectivity): Adjacent subcarrier selectivity

[0186] ASK (Amplitude Shift Keying): Amplitude Shift Keying

[0187] BB (Base Band): Fundamental band

[0188] BLER (Block Error Rate): Block Error Rate

[0189] BPF (Band Pass Filter): Base Pass Filter

[0190] BWP (Bandwidth part): Bandwidth part

[0191] CAP (Channel Access Procedure): Channel Access Procedure

[0192] CFO (Center frequency offset): Center frequency offset

[0193] CORESET(Control resource set): Control resource set

[0194] CRC (Cyclic redundancy check): Cyclic redundancy check

[0195] CP-OFDMA (Cyclic Prefix-Orthogonal Frequency-Division Multiple Access): Cyclic Prefix-Orthogonal Frequency-Division Multiple Access

[0196] CSI (Channel state information): Channel state information

[0197] DCI (Downlink Control Information): Base station-to-terminal control information

[0198] DCP(DCI with CRC scrambled by PS-RNTI): Base station-to-terminal control information scrambled by PS-RNTI

[0199] DRX (Discontinuous Reception): Discontinuous reception

[0200] DFT-S-OFDMA (Discrete Fourier Transform-Spread-Orthogonal Frequency-Division Multiple Access): Discrete Fourier Transform-Spread-Orthogonal Frequency-Division Multiple Access

[0201] eDRX (Extended DRX): Extended Discontinuous Receive

[0202] EPRE (Energy Per Resource Element): Energy per resource element

[0203] FAR (False Alarm Rate): False alarm rate

[0204] FCS (Frame Check Sequence): Frame Check Sequence

[0205] FSK (Frequency Shift Keying): Frequency Shift Keying

[0206] FLL (Frequency Locked Loop): Frequency Locked Loop

[0207] FFT (Fast Fourier Transform): Fast Fourier Transform

[0208] FR1(Frequency range 1): Frequency range 1

[0209] FR2 (Frequency range 2): Frequency range 2

[0210] ICS (In-channel Selectivity): In-channel selectivity

[0211] IF(Intermediate Frequency): Intermediate Frequency

[0212] LP-WUS (Low Power-Wake Up Signal): Low Power Wake Up Signal

[0213] LP-WUR (Low Power-Wake Up Receiver): Low-power weather receiver

[0214] LP-SS (Low Power-Synchronization Signal): Low-power synchronization signal

[0215] LNA (Low Noise Amplifier): Low-noise amplifier

[0216] LPF (Low Pass Filter): Low-pass filter

[0217] LR(LP-WUR): Low-power weather receiver

[0218] MDR (Miss Detection Rate): Miss Detection Rate

[0219] MC-ASK (Multiple Carrier-Amplitude Shift Keying): Multiple Carrier-Amplitude Shift Keying

[0220] MC-FSK (Multiple Carrier-Frequency Shift Keying): Multiple Carrier-Frequency Shift Keying

[0221] MR (Main Radio): Main Radio

[0222] NF (Noise Figure): Noise shape

[0223] OOK(On-Off keying): On / Off keying

[0224] OFDM (Orthogonal Frequency Division Multiplexing): Orthogonal Frequency Division Multiplexing

[0225] PDCCH (Physical Downlink Control Channel): Base station-to-terminal physical control channel

[0226] PUCCH (Physical Uplink Control Channel): Terminal-to-Base Station Physical Control Channel

[0227] PUSCH (Physical Uplink Shared Channel): Terminal-to-Base Station Physical Shared Channel

[0228] PDSCH (Physical Downlink Shared Channel): Base station-to-terminal physical shared channel

[0229] PRACH (Physical Random-Access Channel): Physical Random Access Channel

[0230] PEI (Paging Early Indication): Early Paging Indication

[0231] PO (Paging Occasion): Paging Occasion

[0232] PTW (Paging Time Window): Paging Time Window

[0233] PLL (Phase Locked Loop): Phase Locked Loop

[0234] PAPR (Peak to Average Power Ratio): Peak to Average Power Ratio

[0235] RRC (Radio Resource Control): Radio resource control

[0236] RRM (Radio Resource Management): Radio Resource Management

[0237] RLM (Radio Link Monitoring): Wireless connection monitoring

[0238] RS (Reference Signal): Reference signal

[0239] RSRP (Reference Signal Received Power): Reference signal received power

[0240] RSRQ (Reference Signal Received Quality): Reference signal reception quality

[0241] RTC (Real Time Clock): Real time clock

[0242] RF (Radio Frequency): Radio Frequency

[0243] SCS (Sub-carrier spacing): Subcarrier spacing

[0244] SSB (Synchronization Signal Block): Synchronization signal block

[0245] SSSG (Search Space Set Group): Search Space Set Group

[0246] SINR (Signal to Interference plus Noise Ratio): Signal-to-Interference Plus Noise Ratio

[0247] SNR (Signal to Noise Ratio): Signal-to-Noise Ratio

[0248] SC (Subcarrier): Subcarrier

[0249] TBS (Transport Block Size): Transport block size

[0250] TDRA (Time Domain Resource Allocation): Time Domain Resource Allocation

[0251] Ucell (Unlicensed cell): Unlicensed cell

[0252] UE (User Equipment): Terminal

[0253] XR (Extended reality): Extended reality

[0254] TAG (Timing advance group): Timing advance group

[0255] AmIoT (Ambient Internet of Things): Ambient Internet of Things

[0256] CW (Carrier Wave): Carrier wave

[0257] BSC (Backscattering): Backscattering

[0258] BSS (Backscattered signal): Backscattered signal

[0259] SIC (Self-Interference Cancellation): Self-interference cancellation

[0260] RFID (Radio Frequency Identifier): Radio Frequency Identifier

[0261] IN(Intermediate Node): Intermediate Node

[0262] SLIV (Starting and Length Indicator Value): A starting and length indicator value. As an indicator value for the starting symbol index and the number of symbols within a slot of a base station-to-terminal physical shared channel (e.g., PDSCH) and / or a terminal-to-base station physical shared channel (e.g., PUSCH), it can be set as a component of an entry constituting a time domain resource allocation (e.g., TDRA) field within a base station-to-terminal physical control channel (e.g., PDCCH) that schedules the said base station-to-terminal physical shared channel (e.g., PDSCH) and / or terminal-to-base station physical shared channel (e.g., PUSCH).

[0263] BWP (BandWidth Part): Part of the bandwidth. It may consist of consecutive resource blocks (RBs) on the frequency axis and may correspond to a single numerology (e.g., subcarrier interval, circular prefix (e.g., CP) length, slot / mini-slot duration). Additionally, multiple part bandwidths (e.g., BWPs) may be configured on a single carrier (the number of part bandwidths (e.g., BWPs) per carrier may also be limited), but the number of active part bandwidths (e.g., BWPs) may be limited to a portion (e.g., 1) per carrier.

[0264] CORESET(COntrol REsourse SET): A set of control resources. It refers to a time-frequency resource range in which a base station-to-terminal physical control channel (e.g., PDCCH) can be transmitted, and the number of control resource sets (e.g., CORESET) per partial carrier (e.g., BWP) may be limited.

[0265] REG(Resource element group): Resource element group

[0266] SFI (Slot Format Indicator): A slot format indicator. An indicator that indicates the symbol-level base station-to-terminal / terminal-to-base station direction within a specific slot(s), which can be transmitted via a common base station-to-terminal physical control channel (e.g., PDCCH) within the group.

[0267] COT (Channel occupancy time): Channel occupancy time

[0268] SPS (Semi-persistent scheduling): Semi-permanent scheduling

[0269] QCL (Quasi-Co-Location): Quasi-co-location. A quasi-co-location (e.g., QCL) relationship between two reference signals implies that quasi-co-location (e.g., QCL) parameters obtained from one reference signal, such as Doppler shift, Doppler spread, average delay, delay spread, and spatial Rx parameters, can be applied to another reference signal (or its antenna port(s)). For example, in an NR system, four quasi-co-location (e.g., QCL) types are defined as follows: 'typeA': {Doppler shift, Doppler spread, average delay, delay spread}, 'typeB': {Doppler shift, Doppler spread}, 'typeC': {Doppler shift, average delay}, 'typeD': {spatial Rx parameters}. For example, for a specific base station-to-terminal reference signal antenna port(s), a first base station-to-terminal reference signal (e.g., DL RS) may be set as a reference to a similar identical location (e.g., QCL) type X (X=A, B, C, or D), and additionally, a second base station-to-terminal reference signal (e.g., DL RS) may be set as a reference to a similar identical location (e.g., QCL) type Y (Y=A, B, C, or D, but X).

[0270] TCI (Transmission Configuration Indication): Transmission configuration indicator. A TCI state includes a pseudo-identical position (e.g., QCL) relationship between one or more base station-to-terminal reference signals (e.g., DL RS) with the decoding reference signal (e.g., DM-RS) port of a base station-to-terminal physical shared channel (e.g., PDSCH), the decoding reference signal (e.g., DM-RS) port of a base station-to-terminal physical control channel (e.g., PDCCH), or the channel state information reference signal (e.g., CSI-RS) port(s) of a channel state information reference signal (e.g., CSI-RS) resource. For transmission setting indicators among the fields in base station-to-terminal control information (e.g., DCI) that schedule a base station-to-terminal physical shared channel (e.g., PDSCH), the transmission setting indicator (e.g., TCI) state index corresponding to each code point constituting the field is activated by MAC CE, and the transmission setting indicator (e.g., TCI) state setting for each transmission setting indicator (e.g., TCI) state index can be set through RRC signaling. In an NR system, the transmission setting indicator (e.g., TCI) state is set between the base station-to-terminal reference signal (e.g., DL RS), but setting between the base station-to-terminal reference signal (e.g., DL RS) and the terminal-to-base station reference signal (e.g., UL RS), or between the terminal-to-base station reference signal (e.g., UL RS) and the terminal-to-base station reference signal (e.g., UL RS) may be allowed in the future. For example, examples of terminal-to-base station reference signals (e.g., UL RS) may include sounding reference signals (e.g., SRS), terminal-to-base station physical shared channel (e.g., PUSCH) decoding reference signals (e.g., DM-RS), terminal-to-base station physical control channel (e.g., PUCCH) decoding reference signals (e.g., DM-RS).

[0271] SRI (SRS resource indicator): A sounding reference signal (e.g., SRS) resource indicator. Among the fields in base station-to-terminal control information (e.g., DCI) that schedules a terminal-to-base station physical shared channel (e.g., PUSCH), one of the sounding reference signal (e.g., SRS) resource index values ​​set in the sounding reference signal (e.g., SRS) resource indicator may be indicated. When transmitting a terminal-to-base station physical shared channel (e.g., PUSCH), the terminal may transmit the terminal-to-base station physical shared channel (e.g., PUSCH) by utilizing the same spatial domain transmission filter used for reference signal transmission and reception associated with the corresponding sounding reference signal (e.g., SRS) resource. At this time, for each sounding reference signal (e.g., SRS) resource, the reference signal (e.g., RS) is set by RRC signaling through the SRS-SpatialRelationInfo parameter, and a synchronization signal / physical broadcasting channel (e.g., SS / PBCH) block, channel status reference signal (e.g., CSI-RS), or sounding reference signal (e.g., SRS) can be set as the reference signal (e.g., RS).

[0272] LO(LP-WUS occasion): Low-power weather signal opportunity. For example, it may consist of one or more LP-WUS monitoring opportunities.

[0273] LMO: LP-WUS Monitoring Opportunity

[0274] The present disclosure relates to a low-power wake-up signal (e.g., LP-WUS) information configuration and transmission method for selectively waking up terminals and groups of terminals for a specific purpose in a specific cell, carrier, or band when transmitting a low-power wake-up signal (e.g., LP-WUS). This may be intended to overcome the limitations of existing low-power wake-up signal (e.g., LP-WUS) systems that support only single-cell-based wake-up operations, maximize network efficiency, and optimize the power consumption of terminals.

[0275] Low-power wake signals (e.g., LP-WUS) based on existing technology are primarily focused on wake operations targeting only terminals within a specific cell in a single-cell environment, so the following technical limitations may exist in a broadband multi-cell environment.

[0276] Inefficient Terminal Waking: Existing low-power wake signals (e.g., LP-WUS) are limited to specific cells and cannot wake terminals in adjacent cells or other carriers / bands. Therefore, when a network needs to selectively wake terminals across multiple cells, specific carriers, or bands for specific services or applications, unnecessary terminal waking may occur, leading to inefficient resource utilization. For example, unnecessarily waking terminals that do not support a specific carrier for a service provided only by that carrier can lead to a waste of wireless resources as well as power from the terminals.

[0277] Difficulties in supporting wide-area services: Specific cell-unit low-power wake-up signaling (e.g., LP-WUS) methods can be inefficient in terms of resource utilization across the entire broadband network, considering the possibility of false alarms. It may be difficult to efficiently support service areas extended across broadband or services spanning multiple cells. This may necessitate designing low-power wake-up signals (e.g., LP-WUS) by utilizing carriers, partial bandwidth (e.g., BWP), and cells as wake-up domains.

[0278] Rigid Network Operation: Existing low-power wake signals (e.g., LP-WUS) require independent configuration and management for each cell, carrier, and band, making it difficult to respond flexibly to dynamic traffic pattern changes or various service requirements. This can increase the complexity of network operation management and hinder resource utilization efficiency. In particular, this rigidity can be even more pronounced in broadband environments where resource sharing and cooperation between cells and carriers are emphasized.

[0279] To solve these technical problems, the present disclosure proposes a broadband low-power wake-up signal (e.g., LP-WUS) transmission method in which a network selectively wakes up terminals of specific cells, carriers, or bands for specific purposes (e.g., providing specific services, traffic distribution, etc.).

[0280] Specifically, a method is proposed to instruct a terminal to connect to a specific resource (cell, carrier, etc.) intended by the network by including information such as a target cell identification, carrier frequency information, and band information in the message payload of a low-power wake signal (e.g., LP-WUS).

[0281] This minimizes unnecessary terminal waking, maximizes network resource utilization efficiency, and enables more efficient low-power waking signal (e.g., LP-WUS) operation in a broadband network environment.

[0282] The present disclosure proposes a method for transmitting an optional low-power wake-up signal (e.g., LP-WUS) in which a network wakes up a terminal for a specific purpose in a specific cell, carrier, or band.

[0283] Specifically, by including a cell identifier, carrier frequency, band information, etc., in a low-power wake-up signal (e.g., LP-WUS) message for the terminal to wake up (perform a wake-up operation), the terminal is instructed to attempt to connect to a specific resource, thereby minimizing unnecessary wake-ups and maximizing network resource utilization efficiency.

[0284] In the following disclosure, examples are provided based on an NR system to explain the principles of the disclosure, but the proposed methods are not limited to a specific transmission and reception form of NR unless otherwise stated.

[0285] In addition, the present disclosure below explains the principles of disclosure by providing examples based on the characteristics and structure of a terminal for discontinuous reception (e.g., DRX), but the proposed methods are not limited to supporting terminals for discontinuous reception (e.g., DRX) unless otherwise stated.

[0286] Therefore, it is obvious that the methods proposed in this disclosure can be applied to all wireless communication transmission and reception structures and services without further explanation, provided that the principles of the disclosure are not compromised.

[0287] In the following description, the distinction between each method or option is intended to clarify the explanation and is not to be interpreted restrictively as meaning that each must necessarily be implemented as an independent disclosure. For example, while the methods / options described below may each be implemented individually, they may also be implemented in a combined form in which at least some parts are combined, provided that they do not conflict with one another.

[0288] According to various embodiments of the present disclosure, the timing of reception of a low-power wake-up signal (e.g., LP-WUS) may be determined based on system information transmitted by a base station or separately described in each of the proposed methods below. For example, if the low-power wake-up signal (e.g., LP-WUS) can be received as 1-bit information in a single unit (e.g., 1 slot or 1 symbol) through on / off keying, the offset value and period on the system frame may simply be set. If, for reliability, decoded information is received through multiple on / off keyings or 2 or more bit information is received, the time interval during which the terminal receives the low-power wake-up signal (e.g., LP-WUS) and the terminal ID for the low-power wake-up signal receiver (e.g., LP-WUR) for verification after receiving the low-power wake-up signal (e.g., LP-WUS) may be determined based on this, similar to a paging early indication (e.g., PEI). For example, in this case, the terminal ID used for conventional paging reception may be reused.

[0289] According to one embodiment of the present disclosure, a method may be considered in which a terminal derives the reception location of a low-power wake-up signal (e.g., LP-WUS) through a terminal ID given to the terminal for receiving a low-power wake-up signal (e.g., LP-WUS). For example, the low-power wake-up signal (e.g., LP-WUS) is repeated at short intervals, and the base station may provide the terminal with the number of low-power wake-up signal (e.g., LP-WUS) subgroup parameters. This refers to the number of low-power wake-up signal monitoring periods (e.g., LP-WUS MO) required for one terminal subgroup, in other words, the low-power wake-up signal (e.g., LP-WUS) for one terminal subgroup may be repeated for each corresponding low-power wake-up signal monitoring period (e.g., LP-WUS MO).

[0290] For example, a terminal can distinguish the low-power wake-up signal monitoring time (e.g., LP-WUS MO) to be monitored among the monitoring times (e.g., MO) equal to the number of low-power wake-up signal (e.g., LP-WUS) subgroups through a terminal ID given to it. In addition, for example, if K (K>2) bits of information are received through the monitoring of the low-power wake-up signal (e.g., LP-WUS), the reception of the low-power wake-up signal (e.g., LP-WUS) can also be distinguished through the terminal ID.

[0291] The following is an example of base station and terminal operation using the proposed method. The embodiments described below are intended to specifically explain the technical concept of the disclosure, and the scope of the rights of the present disclosure should not be interpreted as being limited by the embodiments.

[0292] For example, a base station (e.g., gNB) may broadcast a system information block (e.g., SIB). The system information block (e.g., SIB) may include various configuration information for a terminal to receive and operate a low-power wake-up signal (e.g., LP-WUS). The low-power wake-up signal (e.g., LP-WUS) configuration information included in the system information block (e.g., SIB) may include the following.

[0293] - Enable / Disable Indicator for Low Power Wake Signal (e.g., LP-WUS): Can indicate whether the Low Power Wake Signal (e.g., LP-WUS) function is enabled.

[0294] - Time of occurrence of low-power wake signal (e.g., LP-WUS): Can be indicated as a time position relative to the paging opportunity / paging frame (e.g., PO / PF) corresponding to the low-power wake signal opportunity (e.g., LO).

[0295] - Low-power wake-up signal (e.g., LP-WUS) cycle: Can indicate the cycle that the terminal must monitor to receive a low-power wake-up signal (e.g., LP-WUS).

[0296] - Low-power wake-up signal (e.g., LP-WUS) resource allocation information: may indicate time and frequency resource information for which the low-power wake-up signal (e.g., LP-WUS) is transmitted. For example, the low-power wake-up signal (e.g., LP-WUS) payload size, time-frequency location, number of repeated transmissions, number of terminal subgroups, number of different information, etc. may be included here.

[0297] - Optional Wake-up Information: Additional information for the optional wake-up function proposed in this disclosure, which may include a list of cell identifiers (Cell IDs), carrier information, band information, partial band (e.g., BWP) information, etc. The information may be configured to be used when the terminal needs to wake up to a specific cell / carrier / band.

[0298] Subsequently, for example, the terminal may receive a system information block (e.g., SIB) from a base station and obtain a low-power wake-up signal (e.g., LP-WUS) setting by decoding the system information block (e.g., SIB). The terminal may store the obtained low-power wake-up signal (e.g., LP-WUS) setting and subsequently utilize it for a low-power wake-up signal (e.g., LP-WUS) reception operation.

[0299] Here, for example, the terminal may receive a low-power synchronization signal (e.g., LP-SS), which is a synchronization signal for a low-power wake-up signal (e.g., LP-WUS), based on the same cell settings as receiving the low-power wake-up signal (e.g., LP-WUS), depending on the settings of the base station or as needed.

[0300] Subsequently, for example, the terminal can periodically monitor a low-power wake-up signal (e.g., LP-WUS) based on a low-power wake-up signal (e.g., LP-WUS) setting obtained in a low-power state (e.g., idle mode or inactive mode). The terminal monitors the low-power wake-up signal (e.g., LP-WUS) search space according to the set low-power wake-up signal (e.g., LP-WUS) period and can check for the presence of the low-power wake-up signal (e.g., LP-WUS) signal. The low-power wake-up signal (e.g., LP-WUS) monitoring process is designed to minimize the power consumption of the terminal.

[0301] Subsequently, for example, a base station may transmit a low-power wake-up signal (e.g., LP-WUS) to wake a specific terminal or group of terminals to a specific cell, carrier, or band. The low-power wake-up signal (e.g., LP-WUS) may include identification information of the terminal (e.g., terminal ID, group ID), along with a cell identifier to be woken up, carrier information, band information, partial bandwidth (e.g., BWP) information, etc. For example, within the payload of the low-power wake-up signal (e.g., LP-WUS), the physical cell ID (e.g., PCI; physical cell ID) of a specific cell, carrier frequency information, specific band information, or a specific partial bandwidth (e.g., BWP) index, etc., may be explicitly indicated.

[0302] Subsequently, for example, the terminal may receive a low-power wake-up signal (e.g., LP-WUS) in a low-power wake-up signal (e.g., LP-WUS) search space and decode the received low-power wake-up signal (e.g., LP-WUS). By analyzing the decoded low-power wake-up signal (e.g., LP-WUS) payload, the terminal may determine whether it is a low-power wake-up signal (e.g., LP-WUS) intended to wake itself.

[0303] Subsequently, for example, the terminal can check the cell identifier, carrier information, band information, partial bandwidth (e.g., BWP) information, etc., included in the low-power wake signal (e.g., LP-WUS) payload. Based on the above information, the terminal can identify a specific cell, carrier, or band to which it needs to connect.

[0304] Subsequently, for example, the terminal may be awakened by a low-power wake-up signal (e.g., LP-WUS) and attempt to connect to a specific cell, carrier, or band specified in the low-power wake-up signal (e.g., LP-WUS) payload. For example, the terminal may complete network connection by acquiring a synchronization signal block (e.g., SSB) of the specified cell and performing a random access channel (e.g., RACH) procedure on that cell. If partial bandwidth (e.g., BWP) information is specified, the terminal may operate by switching to that partial bandwidth (e.g., BWP).

[0305] Subsequently, for example, the terminal can perform normal communication with a base station in a designated cell, carrier, or band. The communication includes data transmission and reception, exchange of control signals, etc., and the terminal can receive services from the network.

[0306] For example, the corresponding terminal groups can be subdivided in advance so that a code point corresponds to a specific terminal group range. For example, a terminal group consisting of one or more terminals receiving a low-power wake signal (e.g., LP-WUS) opportunity can be divided into 16 terminal subgroups, and each code point can correspond to one or more terminal subgroups.

[0307] In this disclosure, such terminal subgroups have been assumed for convenience, but the concept of this disclosure is not limited thereto. It is obvious that the proposal of this disclosure can be applied to terminal groups / subgroups configured arbitrarily, such as when a terminal group consisting of one or more terminals receiving a low-power wake-up signal (e.g., LP-WUS) opportunity is divided into 16 terminal subgroups, and these are further divided into terminal groups consisting of 4 terminal subgroups, so that a single low-power wake-up signal (e.g., LP-WUS) message indicates only code points corresponding to 4 terminal subgroups.

[0308] According to one embodiment of the present disclosure [Proposed Technology #1], a low-power wake signal (e.g., LP-WUS) structure including a cross-cell / carrier / partial bandwidth (e.g., BWP) indication may be provided.

[0309] The present disclosure relates to a payload structure and a method for processing the same for efficiently waking up a terminal in a multi-cell, carrier, or partial bandwidth (e.g., BWP; bandwidth part) environment by using a low-power waking signal (e.g., LP-WUS) in a wireless communication system.

[0310] For example, a low-power wake signal (e.g., LP-WUS) may include a subgroup indicator for indicating a terminal group and a target indicator for indicating a target cell / carrier / partial bandwidth (e.g., BWP). The subgroup indicator may require at least 5 bits to represent 33 code points, which can indicate up to 32 subgroups individually or all subgroups at once. The target indicator may consist of additional bits for indicating a target cell, carrier, or partial bandwidth (e.g., BWP).

[0311] In the present disclosure, two methods for determining the lengths of the subgroup field and the target indicator field are proposed. The first is a method in which the subgroup field is explicitly fixed to 5 bits and the target indicator field to 3 bits. The second is a method in which the lengths of each field are variably determined according to the number of terminal groups and targets set by the network.

[0312] For example, if the network is configured with only 8 subgroups, only 3 bits may be used for the subgroup field, and if only 4 target cells are indicated, only 2 bits may be used for the target indication field. Such variable configurations can be indicated / configured to the terminal through system information block (e.g., SIB) or radio resource control (e.g., RRC) signaling.

[0313] For example, the target instruction field can be configured in various ways.

[0314] Option 1: The type and index of the target can be indicated separately. For example, if the target indication field consists of 3 bits, the most significant bit can distinguish the type of target (cell / carrier / partial bandwidth (e.g., BWP)) and the lower 2 bits can indicate the index of the target. For example, if the target indication field consists of 4 bits, the type of target can be distinguished by the upper 2 bits and the index can be indicated by the lower 2 bits.

[0315] Option 2: A method in which a single index space is allocated to all targets. To this end, a list indicating the targets corresponding to the index space can be constructed through the base station's System Information Block (e.g., SIB) or other higher-layer signaling. Alternatively, for example, if the target indication field is 4 bits, 16 values ​​can be assigned to the cell, carrier, and partial bandwidth (e.g., BWP). Values ​​0-7 can be used as the cell index, values ​​8-11 as the carrier index, and values ​​12-15 as the partial bandwidth (e.g., BWP) index. This method can be efficient as it does not require a separate bit for distinguishing target types.

[0316] Option 3: This can be indicated by using a hierarchical structure. Targets in the upper layer can determine the target list in the lower layer. For example, a cell index can determine the carrier list, and the selected carrier can determine the partial bandwidth (e.g., BWP) list. In this case, the interpretation of the target indication field may depend on the previously selected target. Here, the target indication field can be constructed by concatenating fields indicating the index of each layer.

[0317] Option 4: The fourth method is to configure the target indication field as a bitmap. Each bit can indicate whether a specific target is active. For example, in a 4-bit field, the upper 2 bits can be used as a bitmap indicating the carrier, and the lower 2 bits can be used as a bitmap indicating the partial bandwidth (e.g., BWP). This method can be useful when multiple target indications are required.

[0318] Option 5: If the first bit is 0, it indicates a single target, and if it is 1, additional bits can be used to indicate multiple targets. This can be efficient in situations where only a single target indication is required in most cases. In this case, the remaining bits in the field can indicate the index of the list for a single target when indicating a single target, and the index of the list for multiple targets when indicating multiple targets. To this end, a list for a single target and a list for multiple targets can be configured for the terminal, respectively.

[0319] For target indication, the corresponding targets may need to be configured in advance. A cell transmitting a low-power wake-up signal (e.g., LP-WUS) may broadcast a list of neighboring cells, a list of supported carriers, and a list of partial bandwidth (e.g., BWP) configurations on a cell-by-cell basis via system information. Entries in each list are assigned a zero-based index, which can be referenced in the target indication field. If a terminal is in a radio resource control connection (e.g., RRC_CONNECTED) state, and different target lists are required per terminal or per terminal group, the network may configure a terminal-specific target list via radio resource control (e.g., RRC) signaling. In this case, the target list in the system information is ignored, and the list configured via radio resource control (e.g., RRC) may take precedence.

[0320] For Option 1, each list can be divided into a cell, a carrier, and a partial bandwidth (e.g., BWP) so that the target type and index can be indicated separately. For example, a cell list, a carrier list, and a partial bandwidth (e.g., BWP) list can each be configured separately.

[0321] For Option 2, an integrated target list including cells, carriers, and partial bandwidths (e.g., BWP) may be required to allocate a single index space to all targets. This list may be configured via system information blocks (e.g., SIBs) or other higher-level signaling.

[0322] For Option 3, to indicate targets by using a hierarchical structure, the target list of the upper layer can be configured to determine the target list of the lower layer. For example, a cell list can determine a carrier list, and a carrier list can determine a partial bandwidth (e.g., BWP) list.

[0323] For Option 4, to configure the target indication field as a bitmap, a list can be configured such that each bit indicates whether a specific target is active. For example, a carrier list and a partial bandwidth (e.g., BWP) list can be configured separately.

[0324] For option 5, a list for a single target and a list for multiple targets can be configured, respectively. The list can be configured such that if the first bit is 0, it indicates a single target, and if it is 1, additional bits can be used to indicate multiple targets.

[0325] Additionally, to reduce the size of the system information block (e.g., SIB), each cell, carrier, and partial bandwidth (e.g., BWP) can be included in a list by using a bitmap. For example, if the 2nd and 4th of the total 8 partial bandwidths (e.g., BWP) need to be specified, the list of target partial bandwidths (e.g., BWP) can be specified by using the bitmap 01010000. It can be configured such that if a specific bit is 1, the corresponding target is included in the list, and if it is 0, it is not included.

[0326] In the present disclosure, targets may include cells, carriers, and partial bandwidths (e.g., BWP), as well as transmission-reception points (e.g., TRPs), cell groups, and specific frequency resources (e.g., RB sets) that are smaller than the partial bandwidth (e.g., BWP). For example, a base station may transmit a low-power wake-up signal (e.g., LP-WUS) message along with a transmission-reception point (e.g., TRP) index, and a terminal receiving this message may assume the corresponding transmission-reception point (e.g., TRP) and receive a base station-to-terminal physical control channel (e.g., PDCCH). Such extensions allow for flexible adaptation to various network configurations and requirements, and the rights of the present disclosure may apply equally even when such various target indications are included.

[0327] The present disclosure may apply even if, in certain embodiments, the target indication supports only some of the cell, carrier, partial bandwidth (e.g., BWP), transmit / receive point (e.g., TRP), cell group, and frequency resource. For example, if the target indication supports only the cell indication, the target indication field may be configured to include only the cell index. The rights of the present disclosure may be retained even in cases where only specific target indications are supported.

[0328] Furthermore, the present disclosure may also apply even when the target indication is limited to including only a specific type of target. For example, if the target indication supports only a transmit / receive point (e.g., TRP) indication, the target indication field may be configured to include only a transmit / receive point (e.g., TRP) index. Even in cases where only a specific type of target indication is supported in this manner, the rights of the present disclosure may be equally guaranteed.

[0329] According to one embodiment of the present disclosure [Proposed Technology #1-1], a method for considering multiple monitoring opportunities (e.g., MO) may be provided.

[0330] In the present disclosure, by considering the limited number of bits of a low-power wake signal (e.g., LP-WUS) payload, a single monitoring opportunity (e.g., MO) method that transmits all information in a single low-power wake signal monitoring opportunity (e.g., LMO) as previously proposed, and a multiple monitoring opportunity (e.g., MO) method that divides and transmits information across multiple monitoring opportunities (e.g., MO) are proposed. For example, if 8 bits of transmission are possible in a single monitoring opportunity (e.g., MO), a 5-bit subgroup field and a 3-bit target instruction field can be configured in the single monitoring opportunity (e.g., MO) method, and in the multiple monitoring opportunity (e.g., MO) method, a 4-bit subgroup field and a 4-bit target instruction field can be transmitted in the first monitoring opportunity (e.g., MO), and 4-bit subgroup field information and a target instruction field for the remaining subgroup can be transmitted in the second monitoring opportunity (e.g., MO).

[0331] More specifically, in a single monitoring opportunity (e.g., MO) method, 32 subgroups use a 5-bit subgroup field, whereas in a multiple monitoring opportunity (e.g., MO) method, the 32 subgroups are divided into two groups of 16 subgroups each, and a subgroup field can be received from each of the two monitoring opportunities (e.g., MO), and in each monitoring opportunity (e.g., MO), a 4-bit subgroup field can be used to support 16 subgroups. In this case, the remaining bit space of each monitoring opportunity (e.g., MO) can be configured as a target indication field.

[0332] Alternatively, it may be possible to configure an A-bit subgroup field to support 32 terminal groups in the first monitoring opportunity (e.g., MO), and a B-bit target indication field in the second monitoring opportunity (e.g., MO).

[0333] A terminal receiving a low-power wake signal (e.g., LP-WUS) can monitor one or more monitoring opportunities (e.g., MO) according to a configured method and obtain subgroup information and target information from the received payload. If the terminal belongs to a designated subgroup, the terminal can monitor paging opportunities (e.g., PO) by switching to a corresponding cell, carrier, or partial bandwidth (e.g., BWP) according to the target information.

[0334] As explained above, the proposed technology can also be used in a method where different monitoring opportunities (e.g., MO) are allocated to each terminal group. In this case, since each group monitors only the monitoring opportunity (e.g., MO) allocated to it, the number of bits required for subgroup instruction in individual monitoring opportunities (e.g., MO) can be reduced. For example, if 32 subgroups are divided into two groups of 16 each and different monitoring opportunities (e.g., MO) are allocated to each group, the number of bits required for subgroup instruction can be reduced from 5 bits to 4 bits.

[0335] The low-power wake signal (e.g., LP-WUS) payload structure and processing method proposed in the present disclosure have the advantage of efficiently supporting cross-cell / carrier / partial bandwidth (e.g., BWP) operations within a limited number of bits and being able to flexibly respond to various network scenarios.

[0336] According to one embodiment of the present disclosure [Proposed Technology #2], a low-power wake signal opportunity (e.g., LO) / monitoring opportunity (e.g., MO) structure for a cross-cell low-power wake signal (e.g., LP-WUS) may be provided.

[0337] For example, instead of including target identifiers such as a cell in a low-power wake-up signal (e.g., LP-WUS) message, the cell transmitting the low-power wake-up signal (e.g., LP-WUS) may be instructed to use a low-power wake-up signal monitoring opportunity (e.g., LMO) that is different for each target. For example, a terminal may determine a target cell / carrier / partial bandwidth (e.g., BWP) based on the time-frequency resource location of the low-power wake-up signal monitoring opportunity (e.g., LMO) where the low-power wake-up signal (e.g., LP-WUS) indicated by the terminal's subgroup ID was transmitted. For example, within a single low-power wake-up signal opportunity (e.g., LO), each low-power wake-up signal monitoring opportunity (e.g., LMO) may be implicitly mapped to a range of a specific target cell, carrier, or partial bandwidth (e.g., BWP). Thus, the terminal may identify a target based on the time-frequency domain location of the monitoring opportunity (e.g., MO) where the low-power wake-up signal (e.g., LP-WUS) indicated by its subgroup ID was received.

[0338] Specifically, the allocation of monitoring opportunities (e.g., MO) within low-power weather signal opportunities (e.g., LO) can be implemented in the following ways.

[0339] Method #1

[0340] This is a method of sequentially assigning each monitoring opportunity (e.g., MO) to different targets in the time and / or frequency domain. For example, if there are N targets, a monitoring opportunity (e.g., MO) located in the k-th time-frequency resource can correspond to the k-th target. In other words, each monitoring opportunity (e.g., MO) can correspond to a single unique target defined by a combination of a specific cell, carrier, and partial bandwidth (e.g., BWP) range. For example, if there are N targets, the k-th monitoring opportunity (e.g., MO) can correspond one-to-one with the k-th target combination (cell / carrier / partial bandwidth (e.g., BWP) combination).

[0341] Method #2

[0342] Each target can be mapped to a group of monitoring opportunities (e.g., MOs) comprising one or more low-power weather signal monitoring opportunities (e.g., LMOs). Here, a target may refer to a single unique target defined by a combination of a specific cell, carrier, and partial bandwidth (e.g., BWP) range. Groups of monitoring opportunities (e.g., MOs) may be allocated sequentially or distributedly in time-frequency resources. When allocated sequentially, monitoring opportunities (e.g., MOs) for the same target may be allocated consecutively in the time domain or adjacently in the frequency domain. Alternatively, groups of monitoring opportunities (e.g., MOs) may be allocated time-first or frequency-first in time-frequency resources.

[0343] Below is a mapping method between the target and the low-power weather signal monitoring opportunity (e.g., LMO) using the above method.

[0344] For Target 1 (Cell Range 1):

[0345] Monitoring Opportunity (e.g., MO) Group #0: Monitoring Opportunity (e.g., MO) #0, #1, #2, #3;

[0346] 2 repeated transmissions and 4 consecutive monitoring opportunities for 2 terminal groups (e.g., MO)

[0347] For Target 2 (Cell Range 2, Carrier Range 2, Partial Bandwidth (e.g., BWP) Ranges 1-4):

[0348] Monitoring Opportunity (e.g., MO) Group #1: Monitoring Opportunity (e.g., MO) #4, #5;

[0349] Two consecutive monitoring opportunities for two different information transmissions (e.g., MO)

[0350] For Target 3 (Cell Range 2, Carrier Range 1, Partial Bandwidth (e.g., BWP) Range 2-3):

[0351] Monitoring Opportunities (e.g., MO) Group #2: Monitoring Opportunities (e.g., MO) #6, #7, #8

[0352] 3 monitoring opportunities for 3 repeated transmissions (e.g., MO)

[0353] As such, each target has its own unique monitoring opportunity (e.g., MO) group, and the number of monitoring opportunities (e.g., MO) within the group can be configured differently depending on repetitive transmission requirements, coverage conditions, beam sweeping needs, etc. The network can provide the terminal with monitoring opportunity (e.g., MO) group mapping information for each target through system information or radio resource control (e.g., RRC) signaling.

[0354] This monitoring opportunity (e.g., MO)-based target indication method can provide the following advantages. First, since a separate bit for target indication is unnecessary in the low-power wake signal (e.g., LP-WUS) payload, the payload can be used more efficiently. Second, since independent low-power wake signal (e.g., LP-WUS) transmission is possible for each target, different transmission parameters can be applied for each target. Third, if the terminal is interested only in a specific target, power consumption can be reduced because only the monitoring opportunity (e.g., MO) mapped to that target needs to be monitored.

[0355] Since independent low-power wake-up signal (e.g., LP-WUS) transmission is possible for each target, different transmission parameters can be applied to each target. For example, in the monitoring opportunity (e.g., MO) section of Cell A, 32 terminal subgroups may be divided into two low-power wake-up signal monitoring opportunities (e.g., LMO) of 16 each, and in the monitoring opportunity (e.g., MO) section of Cell B, 16 terminal subgroups may be divided into two low-power wake-up signal monitoring opportunities (e.g., LMO) of 8 each. For example, it can be designed to support a different number of terminal subgroups for each cell.

[0356] In addition, for example, the number of information transmitted to terminal groups monitoring the same low-power weather signal monitoring opportunity (e.g., LMO) can be configured differently per cell. For example, Cell A may be configured to transmit up to four different pieces of information to terminal groups monitoring the same low-power weather signal monitoring opportunities (e.g., LMO), while Cell B may be configured to transmit up to two different pieces of information to terminal groups monitoring the same low-power weather signal monitoring opportunities (e.g., LMO). This can have the effect of providing an optimized configuration according to the traffic characteristics or service requirements of each cell.

[0357] In terms of signal reliability, different number of repeated transmissions may be applied to each cell. If Cell A has a wide coverage area or poor channel conditions, four repeated transmissions may be configured, while if Cell B has a small coverage area or good channel conditions, only two repeated transmissions may be configured. Such differential repeated transmissions can enable optimal resource utilization tailored to the characteristics of each cell.

[0358] In addition, the low-power wake-up signal monitoring opportunity (e.g., LMO) of each cell can be configured in association with the synchronization signal block (e.g., SSB) beam of the corresponding cell. For example, if cell A uses four synchronization signal block (e.g., SSB) beams, a separate monitoring opportunity (e.g., MO) is allocated for each beam, and if cell B uses two synchronization signal block (e.g., SSB) beams, only two monitoring opportunities (e.g., MO) may be allocated. This enables beam-based low-power wake-up signal (e.g., LP-WUS) transmission optimized for each cell.

[0359] For example, the key to designing low-power weather signal opportunities (e.g., LO) / monitoring opportunities (e.g., MO) may be defining the mapping relationship between each monitoring opportunity (e.g., MO) and a target. According to one embodiment of the present disclosure, the following three mapping methods may be considered for this purpose. First, a method in which the mapping relationship is explicitly defined through system information. Second, a method in which the mapping is implicitly defined according to predefined rules. Third, a method in which the mapping is established per terminal or per terminal group through radio resource control (e.g., RRC) signaling.

[0360] In addition, the present disclosure proposes a hybrid method that combines a target indication based on a monitoring opportunity (e.g., MO) and a target indication based on a low-power wake signal (e.g., LP-WUS) payload. For example, the type of target (cell / carrier / partial bandwidth (e.g., BWP)) can be indicated through the location of a monitoring opportunity (e.g., MO), and a specific target within that type can be indicated through the low-power wake signal (e.g., LP-WUS) payload. This hybrid method has the advantage of enabling more precise target indication.

[0361] For example, when designing low-power wake signal opportunities (e.g., LOs), a network may need to consider the following points. First, the number of monitoring opportunities (e.g., MOs) allocated to each target can be determined by reflecting the importance or traffic load of the target. Second, the spacing between monitoring opportunities (e.g., MOs) may need to be set by considering the terminal's reception capability and power consumption. Third, in a multi-beam environment, since each monitoring opportunity (e.g., MO) may be associated with a specific beam, the beam configuration may also need to be considered.

[0362] The low-power wake signal opportunity (e.g., LO) / monitoring opportunity (e.g., MO) design technology proposed in the present disclosure can enable efficient cross-cell / carrier / partial bandwidth (e.g., BWP) operation without additional signaling overhead for target indication in a low-power wake signal (e.g., LP-WUS) system.

[0363] According to one embodiment of the present disclosure [Proposed Art #2-1], a beam relationship setting between a synchronization signal block (e.g., SSB) and a low-power wake signal (e.g., LP-WUS) can be provided in the operation of a cross-cell low-power wake signal (e.g., LP-WUS).

[0364] As previously explained, in a multi-beam environment, since each monitoring opportunity (e.g., MO) can be associated with a specific beam, beam configuration may also need to be considered. Given that the cell transmitting the low-power wake-up signal (e.g., LP-WUS) is a single cell, and considering a situation where this information wakes up terminals in different cells, it may be physically difficult for all beams of the source cell transmitting the low-power wake-up signal (e.g., LP-WUS) to have a valid association with all beams of the target cells in a multi-beam environment. In other words, each target may only have an association with some of the beams of the low-power wake-up signal (e.g., LP-WUS) cell. For example, to a terminal located in the direction of a specific beam of the source cell, the signal from some target cells may be blocked or received very weakly. Therefore, each target cell may need to be configured to have a valid association with only some of the beams of the source cell.

[0365] To establish such beam relationships, the present disclosure proposes the following methods.

[0366] Method #1

[0367] Quasi Co-Location (QCL) relationships are defined between each low-power wake signal (e.g., LP-WUS) beam of a source cell and the synchronization signal block (e.g., SSB) beam of target cells. These QCL relationships can be broadcast via system information, configured per terminal via radio resource control (e.g., RRC) signaling, or predefined. QCL information may include associations of physical layer parameters, such as spatial receiving parameters.

[0368] Method #2

[0369] QCL relationships can also be defined between each low-power synchronization signal (e.g., LP-SS) beam of a source cell and the synchronization signal block (e.g., SSB) beam of target cells. Alternatively, indirect QCL relationships can be defined by defining QCL relationships between each low-power synchronization signal (e.g., LP-SS) beam and each low-power wake-up signal (e.g., LP-WUS) beam, and by defining QCL relationships between each low-power wake-up signal (e.g., LP-WUS) beam and the synchronization signal block (e.g., SSB) beam of target cells. These QCL relationships can be broadcast via system information, configured per terminal via radio resource control (e.g., RRC) signaling, or predefined. QCL information may include associations of physical layer parameters, such as spatial reception parameters.

[0370] Method #3

[0371] A mapping relationship between low-power weather signal monitoring opportunities (e.g., LMOs) and beams can be explicitly defined. The network can provide a list of valid low-power weather signal monitoring opportunities (e.g., LMOs) for each target cell. For example, target cell A can be configured to use the source cell's low-power weather signal monitoring opportunity (e.g., LMO) indices {0, 1, 2}, and target cell B can be configured to use the low-power weather signal monitoring opportunity (e.g., LMO) indices {2, 3, 4}. This mapping can be determined by considering the geographical location and beam pattern of each cell.

[0372] Method #4

[0373] The association between a low-power wake-up signal (e.g., LP-WUS) beam and a target cell synchronization signal block (e.g., SSB) can be represented in the form of a bitmap. One bitmap is allocated for each low-power wake-up signal (e.g., LP-WUS) beam, and each bit of this bitmap can indicate whether it is associated with the corresponding target cell's synchronization signal block (e.g., SSB). This bitmap-based approach can enable flexible representation of association relationships.

[0374] For dynamic changes to beam relationships, the network can update beam associations based on periodic measurements or terminal feedback. For example, if terminals woken up by a specific low-power wake-up signal (e.g., LP-WUS) beam consistently report low RSRP in a specific target cell, the beam association may be removed or modified.

[0375] The beam relationship setting method proposed in the present disclosure enables efficient beam management in a cross-cell low-power wake-up signal (e.g., LP-WUS) system, which can improve the reliability and performance of the system. Since the terminal only needs to search for beams of the target cell's synchronization signal block (e.g., SSB) associated with the beam of the low-power wake-up signal monitoring opportunity (e.g., LMO) it has received, unnecessary beam searching can be reduced. This can significantly reduce the initial synchronization time and power consumption of the terminal.

[0376] According to one embodiment of the present disclosure [Proposed Technology #3], cross-cell low-power weather signal (e.g., LP-WUS) monitoring and weather procedures may be provided.

[0377] In this disclosure, monitoring and waking procedures for low-power wake signals (e.g., LP-WUS) in a cross-cell environment are defined. In particular, the procedures for operation in the radio resource control idle (e.g., RRC_IDLE) state and the radio resource control connected (e.g., RRC_CONNECTED) state are described by distinguishing between them.

[0378] Broadband Low Power Waking Signal (e.g., LP-WUS) Procedure in Radio Resource Control Connected (e.g., RRC_CONNECTED) State:

[0379] In the radio resource control connection (e.g., RRC_CONNECTED) state, the terminal is already connected to the network and can be connected to multiple component carriers (e.g., CC; Component Carrier) or cells through broadband technology such as carrier aggregation (e.g., CA) or duplex connection (e.g., DC).

[0380] First, by causing a low-power wake-up signal (e.g., LP-WUS) to be transmitted from the PCell, it may be considered to instruct the monitoring of the base station-to-terminal physical control channel (e.g., PDCCH) to the same serving cell or another component carrier (e.g., CC) / cell (SCell, SCG cell, etc.). For example, if the low-power wake-up signal (e.g., LP-WUS) instructs a transition to a specific cell or another component carrier (e.g., CC), the terminal may start monitoring the base station-to-terminal physical control channel (e.g., PDCCH) of the corresponding target component carrier (e.g., CC) / cell. Subsequently, communication (e.g., base station-to-terminal physical shared channel (e.g., PDSCH) / terminal-to-base station physical shared channel (e.g., PUSCH)) in that cell may be performed.

[0381] Broadband cross-cell low-power wake-up signal (e.g., LP-WUS) procedure in radio resource control idle (e.g., RRC_IDLE) state:

[0382] In the radio resource control idle state (e.g., RRC_IDLE), the terminal can process the cross-cell low-power wake-up signal (e.g., LP-WUS) through the following procedure. Consider a case where the terminal is camping on cell A and needs to switch to cell B. In this case, the low-power wake-up signal (e.g., LP-WUS) is transmitted from cell A, thereby enabling the terminal to receive service from cell B.

[0383] For example, the terminal can monitor a low-power wake-up signal (e.g., LP-WUS) in cell A. The low-power wake-up signal opportunity (e.g., LO) for monitoring the low-power wake-up signal (e.g., LP-WUS) can be determined in one of the following two ways.

[0384] (1) A separate low-power wake-up signal opportunity (e.g., LO) dedicated to cell B may be used, or (2) the low-power wake-up signal opportunity (e.g., LO) of cell A may be shared, and the cell identifier within the low-power wake-up signal (e.g., LP-WUS) payload may be used to distinguish (cases where service is received from cell B).

[0385] Here, for example, the low-power wake-up signal opportunity (e.g., LO) location is calculated based on the terminal ID and the system parameters of Cell A, but the actual paging opportunity (e.g., PO) may follow the settings of Cell B.

[0386] For example, if the terminal successfully receives a low-power wake-up signal (e.g., LP-WUS), it can check the target cell identification information included in the payload of the low-power wake-up signal (e.g., LP-WUS).

[0387] For example, the terminal can monitor paging opportunities (e.g., PO) to switch to the corresponding cell. In this case, two scenarios are possible:

[0388] (1) The terminal can monitor the paging opportunity (e.g., PO) of cell A and receive information on switching to cell B from there, or (2) the terminal can directly monitor the paging opportunity (e.g., PO) of cell B. After monitoring the paging opportunity (e.g., PO), the terminal can connect to cell B through a random access channel (e.g., RACH) procedure.

[0389] FIG. 12 illustrates a cross-cell low-power wake signal (e.g., LP-WUS) operation according to one embodiment of the present disclosure. The embodiment of FIG. 12 may be combined with various embodiments of the present disclosure, and the description, function, procedure, proposal, method, and / or operation of said embodiment may be omitted.

[0390] Referring to FIG. 12, time resources corresponding to a first cell and an adjacent second cell, respectively, are shown, in which the terminal is currently camping. According to one embodiment of the present disclosure, the terminal can determine a low-power wake-up signal opportunity (e.g., LO) defined in the first cell based on parameters provided in the first cell (e.g., low-power wake-up signal opportunity (e.g., LO)-paging opportunity (e.g., PO) offset) and a first paging opportunity (e.g., PO) defined in the first cell, and can perform monitoring of a low-power wake-up signal (e.g., LP-WUS) in the low-power wake-up signal opportunity (e.g., LO).

[0391] Here, for example, it is assumed that the terminal has received weather information for a subgroup associated with itself based on monitoring of a low-power weather signal (e.g., LP-WUS). Subsequently, the terminal may perform paging monitoring (or monitoring of paging messages) at a second paging opportunity defined in a second cell according to an embodiment of the present disclosure. Subsequently, the terminal may perform any connection procedure and / or communication operation in the second cell.

[0392] In the present disclosure, a recovery procedure is also defined for failure of monitoring a low-power wake-up signal (e.g., LP-WUS) or failure of receiving a paging opportunity (e.g., PO) / base station-to-terminal physical control channel (e.g., PDCCH). For example, alternative actions may be performed, such as retrying to receive a low-power wake-up signal (e.g., LP-WUS) a specified number of times, switching to a conventional periodic paging reception method if it fails, or continuing to maintain service in the existing cell.

[0393] Alternatively, for example, cases may also occur where monitoring of the low-power wake-up signal (e.g., LP-WUS) is successful, but reception of the target paging opportunity (e.g., PO) or base station-to-terminal physical control channel (e.g., PDCCH) fails, or where cell switching fails based on quality measurement results. For such cases, the following method is proposed. For example, if the switching fails during the process of switching to Cell B after receiving the low-power wake-up signal (e.g., LP-WUS) from Cell A;

[0394] Alternative (Alt)-1: The terminal can expect to receive a base station-to-terminal physical control channel (e.g., PDCCH) that connects to the main radio (e.g., MR) at cell A and performs cross-carrier scheduling to cell B.

[0395] Alternative-2: The terminal can connect to the main radio (e.g., MR) at cell B and expect to receive the base station-to-terminal physical control channel (e.g., PDCCH).

[0396] These cross-cell low-power wake-up signal (e.g., LP-WUS) procedures can contribute to network load balancing, ensuring service continuity, and improving the power efficiency of terminals.

[0397] According to one embodiment of the present disclosure [Proposed Technology #3-1], an operation procedure for each cross-cell low-power wake signal (e.g., LP-WUS) scenario may be provided.

[0398] In the present disclosure, an operation procedure is defined according to various combinations of a cell (source cell) transmitting a low-power wake-up signal (e.g., LP-WUS), the terminal's current camp-on cell, and a target cell.

[0399] Scenario 1: The cell transmitting the low-power wake-up signal (e.g., LP-WUS) is Cell A, and the terminal currently in Cell A is being serviced by Cell A

[0400] The terminal camps on cell A and monitors the low-power wake signal (e.g., LP-WUS) of the same cell; if the low-power wake signal (e.g., LP-WUS) of cell A indicates the same cell service, it monitors the direct paging opportunity (e.g., PO); cell switching is unnecessary and it operates identically to the existing legacy operation, and additional cell search or measurement by the terminal may be unnecessary.

[0401] Scenario 2: The cell transmitting the low-power wake-up signal (e.g., LP-WUS) is Cell A, and the terminal currently in Cell A is being serviced by Cell B.

[0402] The terminal camps on cell A and monitors the low-power wake-up signal (e.g., LP-WUS) of the same cell; if the low-power wake-up signal (e.g., LP-WUS) of cell A indicates service of cell B, the following two methods may be possible.

[0403] (1) The terminal monitors the paging opportunity (e.g., PO) of cell A and receives information about switching to cell B from there; obtains information related to cell B (e.g., system information, timing information) from the paging opportunity (e.g., PO) of cell A; switches to cell B based on the obtained information; and performs a random access channel (e.g., RACH) procedure in cell B.

[0404] (2) The terminal receives a low-power wake-up signal (e.g., LP-WUS) of cell A and directly monitors the paging opportunity (e.g., PO) of cell B, provided that the timing and resource information of the paging opportunity (e.g., PO) of cell B are pre-set; and can directly monitor the paging opportunity (e.g., PO) of cell B and perform random access channel (e.g., RACH) procedures.

[0405] Scenario 3: The cell transmitting the low-power wake-up signal (e.g., LP-WUS) is Cell A, and a terminal currently in Cell B is being serviced by Cell C

[0406] The terminal is camping on cell B but monitors the low-power wake-up signal (e.g., LP-WUS) of cell A; if the low-power wake-up signal (e.g., LP-WUS) of cell A indicates service of cell C, it performs cell reselection or handover to monitor the paging opportunity (e.g., PO) of cell C; after switching to cell C, it monitors the paging opportunity (e.g., PO); and after receiving the necessary service, it can return to cell B.

[0407] Scenario 4: The cell transmitting the low-power wake-up signal (e.g., LP-WUS) is Cell A, and the terminal currently in Cell B is being serviced by Cell B

[0408] The terminal is camping on cell B but monitors the low-power wake-up signal (e.g., LP-WUS) of cell A; when the low-power wake-up signal (e.g., LP-WUS) of cell A indicates service on cell B, it directly monitors the corresponding paging opportunity (e.g., PO) of cell B; and service on cell B can proceed while maintaining the existing camp-on state.

[0409] According to one embodiment of the present disclosure [Proposed Technology #4], a terminal capability report related to the operation described in the present disclosure may be provided.

[0410] For example, whether a main radio (e.g., MR) and a low-power radio (e.g., LR) can operate simultaneously can determine the feasibility of a broadband low-power wake-up signal (e.g., LP-WUS) operation, which efficiently wakes up a terminal in a multi-cell, carrier, or partial-bandwidth (e.g., BWP) environment by using a low-power wake-up signal (e.g., LP-WUS). Therefore, the usage range of the broadband low-power wake-up signal (e.g., LP-WUS) for each terminal may vary depending on the capabilities of the terminal. By taking these circumstances into account, a method for efficiently reporting the functions supported by the terminal is proposed.

[0411] Method #1: Reporting terminal capability to support low-power wake-up signals (e.g., LP-WUS) only within the same cell

[0412] If the terminal does not support simultaneous operation and switching of the main radio (e.g., MR) and low-power radio (e.g., LR) in another cell, the terminal may report that it supports low-power wake-up signals (e.g., LP-WUS) only within the same cell. This means that the terminal can process low-power wake-up signals (e.g., LP-WUS) only within the same cell, and may indicate that switching to another cell or simultaneous operation is not possible.

[0413] Method #2: Reporting terminal capability to support multi-cell operation by limiting to low-power radios (e.g., LR) in the same band as the currently active main radio (e.g., MR).

[0414] If the terminal supports multi-cell operation only for a low-power radio (e.g., LR) in the same frequency band as the currently active main radio (e.g., MR), the terminal may report this. This indicates that the terminal can support simultaneous operation of the main radio (e.g., MR) and the low-power radio (e.g., LR) within the same frequency band, and may mean that it does not support it in other frequency bands.

[0415] Method #3: Report terminal capability to support multi-cell operation with low-power radio (e.g., LR) even when on a different band from the currently active main radio (e.g., MR).

[0416] If the terminal supports multi-cell operation with a low-power radio (e.g., LR) in a different frequency band from the currently active main radio (e.g., MR), the terminal may report this. This may mean that the terminal can support simultaneous operation of the main radio (e.g., MR) and the low-power radio (e.g., LR) in different frequency bands.

[0417] Such terminal capability reporting can help the network accurately identify the functions of terminals and perform efficient resource allocation and scheduling. Furthermore, optimal network operation can be ensured based on the capabilities of the terminals. The rights of this disclosure may apply equally even when such various terminal capability reporting methods are included.

[0418] In a first aspect of the present disclosure, a method used by a terminal in a wireless communication system may be provided, comprising the step of performing an operation proposed in the present disclosure.

[0419] In a second aspect of the present disclosure, a terminal used in a wireless communication system may be provided, comprising: at least one processor; and at least one computer memory operably connected to the at least one processor and, when executed, causing the at least one processor to perform the operation proposed in the present disclosure.

[0420] In a third aspect of the present disclosure, a device for a terminal may be provided, comprising: at least one processor; and at least one computer memory operably connected to the at least one processor and, when executed, causes the at least one processor to perform the operation proposed in the present disclosure.

[0421] In a fourth aspect of the present disclosure, a computer-readable storage medium may be provided that includes at least one computer program that, when executed, causes at least one processor to perform the operation proposed in the present disclosure.

[0422] In a fifth aspect of the present disclosure, a method used by a base station in a wireless communication system may be provided, comprising the step of performing the operation proposed in the present disclosure.

[0423] In a sixth aspect of the present disclosure, a base station used in a wireless communication system may be provided, comprising: at least one processor; and at least one computer memory operably connected to the at least one processor and, when executed, causing the at least one processor to perform the operation proposed in the present disclosure.

[0424] Herein, the operations proposed in this disclosure may be described separately for convenience, but unless specifically stated otherwise, each operation may be combined with others.

[0425] A low-power wake-up signal (e.g., LP-WUS) is a low-power wake-up signal that allows the terminal to monitor paging at low power when it is in a state where it is not monitoring paging by default (idle state), and may include an instruction to perform paging after a specific time interval from the time it is received.

[0426] Low-power wake-up signals (e.g., LP-WUS) based on existing technology are primarily focused on wake-up operations targeting only terminals within a specific cell in a single-cell environment, and thus may have technical limitations in a broadband multi-cell environment.

[0427] In addition, existing low-power wake signals (e.g., LP-WUS) are limited to specific cells and cannot wake up terminals in adjacent cells or other carriers / bands, so when a network needs to selectively wake up terminals across multiple cells, specific carriers, or bands, unnecessary terminal waking may occur, leading to inefficiency in resource utilization.

[0428] Furthermore, according to existing technology, independent configuration and management are required for each cell, carrier, and band, making it difficult to flexibly respond to dynamic traffic pattern changes or various service requirements, and potentially increasing the complexity of network operation management.

[0429] According to one embodiment of the present disclosure, a terminal may receive a low-power wake-up signal (e.g., LP-WUS) from a first cell and receive a paging message from a second cell based on the low-power wake-up signal (e.g., LP-WUS). According to one embodiment of the present disclosure, a broadband low-power wake-up signal (e.g., LP-WUS) transmission method is proposed in which a network selectively wakes up terminals of a specific cell, carrier, or band for a specific purpose (e.g., providing a specific service, traffic distribution, etc.).

[0430] Specifically, for example, a method is proposed to instruct a terminal to connect to a specific resource (cell, carrier, etc.) intended by the network by including, in the message payload of a low-power wake-up signal (e.g., LP-WUS), information such as a target cell identification to be woken up, carrier frequency information, and band information. In addition, for example, by including a subgroup indicator for indicating a terminal group and a target indicator for indicating a target cell / carrier / BWP, cross-cell / carrier / BWP operation can be supported within a limited number of bits.

[0431] According to various embodiments of the present disclosure, unnecessary terminal waking is minimized, network resource utilization efficiency is maximized, and more efficient low-power waking signal (e.g., LP-WUS) operation in a broadband network environment can be enabled. Additionally, if a terminal is interested only in a specific target, power consumption can be reduced because the terminal only needs to monitor the monitoring opportunity (e.g., MO) mapped to that target, and different transmission parameters can be applied to each target because independent low-power waking signal (e.g., LP-WUS) transmission is possible for each target. Furthermore, since the terminal only needs to search for the synchronization signal block (e.g., SSB) beams of the target cell associated with the beam of the low-power waking signal monitoring opportunity (e.g., LMO) it has received, unnecessary beam searching can be reduced, which can significantly reduce the terminal's initial synchronization time and power consumption.

[0432] FIG. 13 illustrates a procedure of a method that can be performed by a first device according to one embodiment of the present disclosure. The embodiment of FIG. 13 may be combined with various embodiments of the present disclosure, and the description, function, procedure, proposal, method, and / or operation of said embodiment may be omitted.

[0433] Referring to FIG. 13, in step S1310, the first device may receive a low-power wake-up signal opportunity-paging opportunity offset value associated with the first cell from a first base station providing the first cell. In step S1320, the first device may determine a first low-power wake-up signal opportunity associated with the first cell based on a first paging opportunity associated with the first cell and the low-power wake-up signal opportunity-paging opportunity offset value. In step S1330, the first device may receive a low-power wake-up signal at the first low-power wake-up signal opportunity. In step S1340, the first device may monitor a paging message at a second paging opportunity associated with a second cell provided by a second base station based on the low-power wake-up signal.

[0434] For example, the paging message can be monitored based on the fact that the low-power wake signal includes a subgroup ID (identifier) ​​associated with the first device.

[0435] For example, additionally, the first device may perform an arbitrary connection procedure in the second cell.

[0436] For example, the first low-power wake signal opportunity may be a low-power wake signal opportunity dedicated to multi-cell operation.

[0437] For example, the low-power weather signal includes a cell identifier associated with the second cell, and the paging message can be monitored in the second paging opportunity based on the cell identifier.

[0438] For example, the first device performing the above method may be in a radio resource control idle state.

[0439] For example, additionally, the first device may report capability information related to multi-cell operation to the first base station.

[0440] For example, the paging message can be monitored in the second paging opportunity based on the location of the resource associated with the first low-power weather signal opportunity.

[0441] For example, the low-power weather signal is monitored in the first low-power weather signal monitoring opportunity within the first low-power weather signal opportunity, and the location of the resource associated with the first low-power weather signal opportunity may be the location of the resource associated with the first low-power weather signal monitoring opportunity.

[0442] For example, the first beams associated with the low-power weather signals of the first cell and the beams associated with the synchronization signal blocks of the second cell may have a quasi-co-location (QCL) relationship.

[0443] For example, additionally, the first device may receive bitmap information from the first base station regarding whether there is an association between the first beams associated with the low-power weather signals of the first cell and the beams associated with the synchronization signal blocks of the second cell.

[0444] For example, the first beams associated with the low-power synchronization signals of the first cell and the beams associated with the synchronization signal blocks of the second cell may have a QCL relationship.

[0445] The above-described embodiment may be applied to various devices described below. First, the processor (102) of the first device (100) may control the transceiver (106) to receive a low-power wake-up signal opportunity-paging opportunity offset value associated with the first cell from the first base station (300) providing the first cell. Then, the processor (102) of the first device (100) may determine a first low-power wake-up signal opportunity associated with the first cell based on the first paging opportunity associated with the first cell and the low-power wake-up signal opportunity-paging opportunity offset value. Then, the processor (102) of the first device (100) may control the transceiver (106) to receive a low-power wake-up signal from the first low-power wake-up signal opportunity. And, the processor (102) of the first device (100) can monitor a paging message in a second paging opportunity related to a second cell provided by the second base station (400) based on the low-power weather signal.

[0446] According to one embodiment of the present disclosure, a first device 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 being executed by the at least one processor, the first device may: receive a low-power wake-up signal opportunity-paging opportunity offset value associated with the first cell from a first base station providing a first cell; determine a first low-power wake-up signal opportunity associated with the first cell based on a first paging opportunity associated with the first cell and the low-power wake-up signal opportunity-paging opportunity offset value; receive a low-power wake-up signal at the first low-power wake-up signal opportunity; and monitor a paging message at a second paging opportunity associated with a second cell provided by a second base station based on the low-power wake-up signal.

[0447] For example, the paging message can be monitored based on the fact that the low-power wake signal includes a subgroup ID (identifier) ​​associated with the first device.

[0448] For example, additionally, the above commands may cause the first device to perform an arbitrary connection procedure in the second cell.

[0449] For example, the first low-power wake signal opportunity may be a low-power wake signal opportunity dedicated to multi-cell operation.

[0450] For example, the low-power weather signal includes a cell identifier associated with the second cell, and the paging message can be monitored in the second paging opportunity based on the cell identifier.

[0451] For example, the first device performing the above method may be in a radio resource control idle state.

[0452] For example, additionally, the above commands may cause the first device to report capability information related to multi-cell operation to the first base station.

[0453] For example, the paging message can be monitored in the second paging opportunity based on the location of the resource associated with the first low-power weather signal opportunity.

[0454] For example, the low-power weather signal is monitored in the first low-power weather signal monitoring opportunity within the first low-power weather signal opportunity, and the location of the resource associated with the first low-power weather signal opportunity may be the location of the resource associated with the first low-power weather signal monitoring opportunity.

[0455] For example, the first beams associated with the low-power weather signals of the first cell and the beams associated with the synchronization signal blocks of the second cell may have a quasi-co-location (QCL) relationship.

[0456] For example, additionally, the above commands may cause the first device to receive bitmap information from the first base station regarding whether there is an association between the first beams associated with the low-power weather signals of the first cell and the beams associated with the synchronization signal blocks of the second cell.

[0457] For example, the first beams associated with the low-power synchronization signals of the first cell and the beams associated with the synchronization signal blocks of the second cell may have a QCL relationship.

[0458] 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: receive a low-power wake-up signal opportunity-paging opportunity offset value associated with the first cell from a first base station providing a first cell; determine a first low-power wake-up signal opportunity associated with the first cell based on a first paging opportunity associated with the first cell and the low-power wake-up signal opportunity-paging opportunity offset value; receive a low-power wake-up signal at the first low-power wake-up signal opportunity; and monitor a paging message at a second paging opportunity associated with a second cell provided by a second base station based on the low-power wake-up signal.

[0459] According to one embodiment of the present disclosure, a non-transient computer-readable storage medium recording commands may be provided. For example, when executed, the commands may cause a first device to: receive a low-power wake-up signal opportunity-paging opportunity offset value associated with the first cell from a first base station providing a first cell; determine a first low-power wake-up signal opportunity associated with the first cell based on a first paging opportunity associated with the first cell and the low-power wake-up signal opportunity-paging opportunity offset value; receive a low-power wake-up signal at the first low-power wake-up signal opportunity; and monitor a paging message at a second paging opportunity associated with a second cell provided by a second base station based on the low-power wake-up signal.

[0460] FIG. 14 illustrates a procedure of a method that can be performed by a second device according to one embodiment of the present disclosure. The embodiment of FIG. 14 may be combined with various embodiments of the present disclosure, and the description, function, procedure, proposal, method, and / or operation of said embodiment may be omitted.

[0461] Referring to FIG. 14, in step S1410, the second device may transmit to the first device a low-power wake-up signal opportunity-paging opportunity offset value associated with the first cell provided by the second device. For example, a first low-power wake-up signal opportunity associated with the first cell may be determined based on a first paging opportunity associated with the first cell and the low-power wake-up signal opportunity-paging opportunity offset value. In step S1420, the second device may transmit a low-power wake-up signal at the first low-power wake-up signal opportunity to the first device. For example, based on the low-power wake-up signal, a paging message may be monitored by the first device at a second paging opportunity associated with the second cell provided by the third device.

[0462] For example, the paging message can be monitored based on the fact that the low-power wake signal includes a subgroup ID (identifier) ​​associated with the first device.

[0463] For example, an arbitrary connection procedure can be performed by the first device in the second cell.

[0464] For example, the first low-power wake signal opportunity may be a low-power wake signal opportunity dedicated to multi-cell operation.

[0465] For example, the low-power weather signal includes a cell identifier associated with the second cell, and the paging message can be monitored in the second paging opportunity based on the cell identifier.

[0466] For example, the first device performing the above method may be in a radio resource control idle state.

[0467] For example, additionally, the second device may receive capability information related to multi-cell operation from the first device.

[0468] For example, the paging message can be monitored in the second paging opportunity based on the location of the resource associated with the first low-power weather signal opportunity.

[0469] For example, the low-power weather signal is monitored in the first low-power weather signal monitoring opportunity within the first low-power weather signal opportunity, and the location of the resource associated with the first low-power weather signal opportunity may be the location of the resource associated with the first low-power weather signal monitoring opportunity.

[0470] For example, the first beams associated with the low-power weather signals of the first cell and the beams associated with the synchronization signal blocks of the second cell may have a quasi-co-location (QCL) relationship.

[0471] For example, additionally, the second device may transmit to the first device bitmap information regarding whether there is an association between the first beams associated with the low-power weather signals of the first cell and the beams associated with the synchronization signal blocks of the second cell.

[0472] For example, the first beams associated with the low-power synchronization signals of the first cell and the beams associated with the synchronization signal blocks of the second cell may have a QCL relationship.

[0473] The above-described embodiment may be applied to various devices described below. First, the processor (202) of the second device (200) may control the transceiver (206) to transmit a low-power wake-up signal opportunity-paging opportunity offset value associated with a first cell provided by the second device (200) to the first device (100). For example, a first low-power wake-up signal opportunity associated with the first cell may be determined based on a first paging opportunity associated with the first cell and the low-power wake-up signal opportunity-paging opportunity offset value. Then, the processor (202) of the second device (200) may control the transceiver (206) to transmit a low-power wake-up signal at the first low-power wake-up signal opportunity to the first device (100). For example, based on the low-power weather signal, a paging message may be monitored by the first device (100) in a second paging opportunity associated with a second cell provided by the third device (300).

[0474] According to one embodiment of the present disclosure, a second device 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 being executed by the at least one processor, the second device may: transmit to the first device a low-power wake-up signal opportunity-paging opportunity offset value associated with a first cell provided by the second device, wherein a first low-power wake-up signal opportunity associated with the first cell is determined based on the first paging opportunity associated with the first cell and the low-power wake-up signal opportunity-paging opportunity offset value; and transmit to the first device a low-power wake-up signal at the first low-power wake-up signal opportunity, wherein, based on the low-power wake-up signal, a paging message may be monitored by the first device at a second paging opportunity associated with a second cell provided by a third device.

[0475] For example, the paging message can be monitored based on the fact that the low-power wake signal includes a subgroup ID (identifier) ​​associated with the first device.

[0476] For example, an arbitrary connection procedure can be performed by the first device in the second cell.

[0477] For example, the first low-power wake signal opportunity may be a low-power wake signal opportunity dedicated to multi-cell operation.

[0478] For example, the low-power weather signal includes a cell identifier associated with the second cell, and the paging message can be monitored in the second paging opportunity based on the cell identifier.

[0479] For example, the first device performing the above method may be in a radio resource control idle state.

[0480] For example, additionally, the above commands may cause the second device to receive capability information related to multi-cell operation from the first device.

[0481] For example, the paging message can be monitored in the second paging opportunity based on the location of the resource associated with the first low-power weather signal opportunity.

[0482] For example, the low-power weather signal is monitored in the first low-power weather signal monitoring opportunity within the first low-power weather signal opportunity, and the location of the resource associated with the first low-power weather signal opportunity may be the location of the resource associated with the first low-power weather signal monitoring opportunity.

[0483] For example, the first beams associated with the low-power weather signals of the first cell and the beams associated with the synchronization signal blocks of the second cell may have a quasi-co-location (QCL) relationship.

[0484] For example, additionally, the above commands may cause the second device to transmit to the first device bitmap information regarding whether there is an association between the first beams associated with the low-power weather signals of the first cell and the beams associated with the synchronization signal blocks of the second cell.

[0485] For example, the first beams associated with the low-power synchronization signals of the first cell and the beams associated with the synchronization signal blocks of the second cell may have a QCL relationship.

[0486] Various embodiments of the present disclosure may be combined with one another.

[0487] The following describes an apparatus to which various embodiments of the present disclosure may be applied.

[0488] Although not limited to this, 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) between devices.

[0489] 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.

[0490] FIG. 15 shows a communication system (1) according to one embodiment of the present disclosure. The embodiment of FIG. 15 can be combined with various embodiments of the present disclosure.

[0491] Referring to FIG. 15, 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., 5G NR (New RAT), LTE (Long Term Evolution)) and may be referred to as a communication / wireless / 5G 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 wireless communication functions, 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.

[0492] Here, the wireless communication technology implemented in the wireless devices (100a to 100f) of the present disclosure may include LTE, NR, and 6G, as well as Narrowband Internet of Things for low-power communication. In this case, 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 the present disclosure may perform communication based on LTE-M technology. In this case, 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 the present disclosure 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.

[0493] 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, or a 5G (e.g., NR) 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).

[0494] 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 various wireless access technologies (e.g., 5G NR), such as uplink / downlink communication (150a), sidelink communication (150b) (or D2D communication), and inter-base station communication (150c) (e.g., relay, IAB (Integrated Access Backhaul)). 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 the 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.

[0495] FIG. 16 shows a wireless device according to one embodiment of the present disclosure. The embodiment of FIG. 16 may be combined with various embodiments of the present disclosure.

[0496] Referring to FIG. 16, 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, NR). 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. 15.

[0497] For example, the description of the first wireless device (or device) and the second wireless device (or device) below may be extended to the third wireless device (300) (or device) or the wireless device (or device) corresponding to a subsequent reference number. For example, the reference number of the processor of the third wireless device (300) may be 302, and the reference number of the transceiver may be 306.

[0498] 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.

[0499] 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.

[0500] 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.

[0501] 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.

[0502] 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, code, 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.

[0503] 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.

[0504] FIG. 17 shows a signal processing circuit for a transmission signal according to one embodiment of the present disclosure. The embodiment of FIG. 18 can be combined with various embodiments of the present disclosure.

[0505] Referring to FIG. 18, 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. 18 may be performed in the processor (102, 202) and / or transceiver (106, 206) of FIG. 16. The hardware elements of FIG. 18 may be implemented in the processor (102, 202) and / or transceiver (106, 206) of FIG. 16. For example, blocks 1010 through 1060 may be implemented in the processor (102, 202) of FIG. 16. Additionally, blocks 1010 to 1050 may be implemented in the processor (102, 202) of FIG. 16, and block 1060 may be implemented in the transceiver (106, 206) of FIG. 16.

[0506] The codeword can be converted into a wireless signal through the signal processing circuit (1000) of FIG. 18. 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., terminal-to-base station physical shared channel (e.g., PUSCH), base station-to-terminal physical shared channel (e.g., PDSCH)).

[0507] 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.

[0508] 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.

[0509] 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. 18. For example, a wireless device (e.g., 100, 200 in FIG. 16) 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.

[0510] FIG. 18 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. 15). The embodiment of FIG. 18 may be combined with various embodiments of the present disclosure.

[0511] Referring to FIG. 18, the wireless device (100, 200) corresponds to the wireless device (100, 200) of FIG. 16 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. 16. For example, the transceiver(s) (114) may include one or more transceivers (106, 206) and / or one or more antennas (108, 208) of FIG. 16. 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).

[0512] 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. 15, 100a), a vehicle (Fig. 15, 100b-1, 100b-2), an XR device (Fig. 15, 100c), a portable device (Fig. 15, 100d), a home appliance (Fig. 15, 100e), an IoT device (Fig. 15, 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. 15, 400), a base station (Fig. 15, 200), a network node, etc. Wireless devices can be used in a movable or fixed location depending on the use—e.g., service.

[0513] In FIG. 18, 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.

[0514] Hereinafter, an implementation example of FIG. 18 will be described in more detail with reference to the drawings.

[0515] FIG. 19 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 an MS (Mobile Station), UT (User Terminal), MSS (Mobile Subscriber Station), SS (Subscriber Station), AMS (Advanced Mobile Station), or WT (Wireless Terminal). The embodiment of FIG. 19 may be combined with various embodiments of the present disclosure.

[0516] Referring to FIG. 19, 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. 18.

[0517] 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 by 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.

[0518] 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).

[0519] The claims described in this disclosure may be combined in various ways. For example, the technical features of the method claims of this disclosure may be combined to be implemented as a device, and the technical features of the device claims of this disclosure may be combined to be implemented as a method. Additionally, the technical features of the method claims of this disclosure and the technical features of the device claims of this disclosure may be combined to be implemented as a device, and the technical features of the method claims of this disclosure and the technical features of the device claims of this disclosure may be combined to be implemented as a method.

Claims

1. Regarding the method, A step of receiving a low-power weather signal opportunity-phasing opportunity offset value associated with the first cell from a first base station providing the first cell; A step of determining a first low-power wake-up signal opportunity associated with the first cell based on a first paging opportunity associated with the first cell and a low-power wake-up signal opportunity-paging opportunity offset value; A step of receiving a low-power weather signal at the first low-power weather signal opportunity; and A method comprising the step of monitoring a paging message in a second paging opportunity associated with a second cell provided by a second base station based on the low-power weather signal.

2. In Paragraph 1, A method in which the above paging message is monitored based on the fact that the low-power wake signal includes a subgroup ID (identifier) ​​associated with the first device.

3. In Paragraph 1, A method further comprising the step of performing an arbitrary connection procedure in the second cell.

4. In Paragraph 1, The above-mentioned first low-power wake signal opportunity is a low-power wake signal opportunity dedicated to multi-cell operation, method.

5. In Paragraph 1, The above low-power weather signal includes a cell identifier associated with the second cell, and A method in which the above paging message is monitored in the second paging opportunity based on the above cell identifier.

6. In Paragraph 1, A first device performing the above method is in a radio resource control idle state.

7. In Paragraph 1, A method further comprising the step of reporting capability information related to multi-cell operation to the first base station.

8. In Paragraph 1, A method in which the above paging message is monitored in the second paging opportunity based on the location of a resource associated with the first low-power weather signal opportunity.

9. In Paragraph 8, The above low-power weather signal is monitored in the first low-power weather signal monitoring opportunity within the first low-power weather signal opportunity, and A method in which the location of a resource related to the first low-power weather signal opportunity is the location of a resource related to the first low-power weather signal monitoring opportunity.

10. In Paragraph 1, A method in which the first beams associated with the low-power weather signals of the first cell and the beams associated with the synchronization signal blocks of the second cell are in a quasi-co-location (QCL) relationship.

11. In Paragraph 1, A method further comprising the step of receiving, from the first base station, bitmap information regarding whether there is an association between first beams associated with low-power weather signals of the first cell and beams associated with synchronization signal blocks of the second cell.

12. In Paragraph 1, A method in which the first beams associated with the low-power synchronization signals of the first cell and the beams associated with the synchronization signal blocks of the second cell are in a QCL relationship.

13. In Paragraph 1, The above method is a method performed by a first device.

14. In the first device, At least one transmitter / receiver; At least one processor; and It includes at least one memory connected to the above-mentioned at least one processor and storing instructions, Based on the above instructions being executed by the at least one processor, the first device: Receiving a low-power weather signal opportunity-phasing opportunity offset value associated with the first cell from a first base station providing the first cell; Determining a first low-power wake-up signal opportunity associated with the first cell based on a first paging opportunity associated with the first cell and a low-power wake-up signal opportunity-paging opportunity offset value; Receiving a low-power weather signal at the above-mentioned first low-power weather signal opportunity; and A first device that monitors a paging message in a second paging opportunity associated with a second cell provided by a second base station based on the above low-power weather signal.

15. In a processing device configured to control a first device, At least one processor; and It includes at least one memory connected to the above-mentioned at least one processor and storing instructions, Based on the above instructions being executed by the at least one processor, the first device: Receiving a low-power weather signal opportunity-phasing opportunity offset value associated with the first cell from a first base station providing the first cell; Determining a first low-power wake-up signal opportunity associated with the first cell based on a first paging opportunity associated with the first cell and a low-power wake-up signal opportunity-paging opportunity offset value; Receiving a low-power weather signal at the above-mentioned first low-power weather signal opportunity; and A processing device that monitors a paging message in a second paging opportunity associated with a second cell provided by a second base station based on the above low-power weather signal.

16. As a non-transient computer-readable storage medium recording instructions, When executed, the above commands cause the first device: Receiving a low-power weather signal opportunity-phasing opportunity offset value associated with the first cell from a first base station providing the first cell; Determining a first low-power wake-up signal opportunity associated with the first cell based on a first paging opportunity associated with the first cell and a low-power wake-up signal opportunity-paging opportunity offset value; Receiving a low-power weather signal at the above-mentioned first low-power weather signal opportunity; and A non-transient computer-readable storage medium that monitors paging messages in a second paging opportunity associated with a second cell provided by a second base station based on the above low-power weather signal.

17. Regarding the method, Transmit to the first device a low-power wake-up signal opportunity-phasing opportunity offset value associated with the first cell provided by the second device, wherein A step of determining a first low-power wake-up signal opportunity associated with the first cell based on a first paging opportunity associated with the first cell and a low-power wake-up signal opportunity-paging opportunity offset value; and The above first device includes the step of transmitting a low-power weather signal at the first low-power weather signal opportunity, wherein A method in which a paging message is monitored by the first device in a second paging opportunity associated with a second cell provided by the third device, based on the low-power weather signal.

18. In Paragraph 17, A method in which the above paging message is monitored based on the fact that the low-power wake signal includes a subgroup ID (identifier) ​​associated with the first device.

19. In the second device, At least one transmitter / receiver; At least one processor; and It includes at least one memory connected to the above-mentioned at least one processor and storing instructions, Based on the execution of the above instructions by the at least one processor, the second device: The first device is to transmit a low-power wake-up signal opportunity-phasing opportunity offset value associated with the first cell provided by the second device, wherein A first low-power wake-up signal opportunity associated with the first cell is determined based on a first paging opportunity associated with the first cell and a low-power wake-up signal opportunity-paging opportunity offset value; and The first device is configured to transmit a low-power weather signal at the first low-power weather signal opportunity, A second device in which a paging message is monitored by the first device in a second paging opportunity associated with a second cell provided by the third device, based on the low-power weather signal.

20. In Paragraph 19, The above paging message is a second device monitored based on the low-power wake signal including a subgroup ID (identifier) ​​associated with the first device.

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