Method and apparatus for transmitting low-power wake-up signal composed of plurality of parts

Abstract

Proposed is an operation method for a first device (100) in a wireless communication system. The method may comprise the step of monitoring a low-power wake-up signal transmitted from a second device (200), wherein a first code point value of the low-power wake-up signal is related to a first device group, a second code point value of the low-power wake-up signal is related to a second device group, and bitmap information includes additional information on the basis that the first code point value is the same as the second code point value.

Description

Method and device for transmitting a low-power meteorological signal comprising multiple parts

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

[0002] 5G NR, the successor to LTE (long-term evolution), is a new clean-slate mobile communications system characterized by high performance, low latency, and high availability. 5G NR can utilize all available spectrum resources, from low-frequency bands below 1 GHz, mid-frequency bands between 1 GHz and 10 GHz, and high-frequency (millimeter wave) bands above 24 GHz.

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

[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: monitoring a low-power weather signal transmitted from a second device, wherein the low-power weather signal includes bitmap information including a first code point value and a second code point value, wherein the first code point value is associated with a first device group, the second code point value is associated with a second device group, and based on the first code point value being identical to the second code point value, the bitmap information includes additional information; and based on the first device being included in the first device group or the second device group, performing a paging at a paging opportunity.

[0006] According to one embodiment of the present disclosure, a first device may be provided. For example, the method may include: at least one transceiver; at least one processor; and at least one memory coupled to the at least one processor and storing instructions. For example, the instructions, based on execution by the at least one processor, may cause the first device to: monitor a low-power weather signal transmitted from a second device, wherein the low-power weather signal includes bitmap information including a first code point value and a second code point value, wherein the first code point value is associated with a first device group, the second code point value is associated with a second device group, and based on the first code point value being identical to the second code point value, the bitmap information includes additional information; and based on the first device being included in the first device group or the second device group, perform paging at a paging opportunity.

[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 coupled to the at least one processor and storing instructions. For example, the instructions, based on execution by the at least one processor, may cause the first device to: monitor a low-power weather signal transmitted from a second device, wherein the low-power weather signal includes bitmap information including a first code point value and a second code point value, wherein the first code point value is associated with a first device group, the second code point value is associated with a second device group, and based on the first code point value being identical to the second code point value, the bitmap information includes additional information; and based on the first device being included in the first device group or the second device group, perform paging at a paging opportunity.

[0008] According to one embodiment of the present disclosure, a non-transitory computer-readable storage medium having instructions recorded thereon may be provided. For example, the instructions, when executed, may cause a first device to: monitor a low-power weather signal transmitted from a second device, wherein the low-power weather signal includes bitmap information including a first code point value and a second code point value, wherein the first code point value is associated with a first device group, the second code point value is associated with a second device group, and wherein the bitmap information includes additional information based on the first code point value being identical to the second code point value; and cause the first device to perform paging at a paging opportunity based on whether the first device is included in the first device group or the second device group.

[0009] According to one embodiment of the present disclosure, a method that can be performed by a second device can be provided. For example, the method includes: generating bitmap information including a first code point value and a second code point value, wherein the first code point value is associated with a first device group, the second code point value is associated with a second device group, and based on the first code point value being equal to the second code point value, the bitmap information includes additional information; transmitting a low power wake-up signal including the bitmap information; and transmitting a paging message at a paging opportunity, wherein the paging message can be received by a first device included in the first device group or the second device group.

[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 coupled to the at least one processor and storing instructions. For example, the instructions, based on execution by the at least one processor, cause the second device to: generate bitmap information including a first code point value and a second code point value, wherein the first code point value is associated with a first device group, the second code point value is associated with a second device group, and based on the first code point value being identical to the second code point value, the bitmap information includes additional information; transmit a low power wake-up signal including the bitmap information; and transmit a paging message at a paging opportunity, wherein the paging message is receivable by a first device included in the first device group or the second device group.

[0011] Figure 1 illustrates a device-to-device communication procedure according to one embodiment of the present disclosure.

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

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

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

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

[0016] FIG. 6 illustrates 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 one 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 illustrates an operational flowchart of a terminal performing one or more physical channel / 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 illustrates an operational flowchart of a base station performing one or more physical channel / 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 channel / 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 procedure for transmitting a low-power weather signal including information related to a bitmap including a plurality of code point values, according to one embodiment of the present disclosure.

[0023] FIG. 13 illustrates a procedure for a first device to receive a paging message based on a low-power weather signal over time, according to one embodiment of the present disclosure.

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

[0025] FIG. 15 illustrates a procedure of a method that can be performed by a second device according to one embodiment of the present disclosure.

[0026] Fig. 16 illustrates a communication system (1) according to one embodiment of the present disclosure.

[0027] FIG. 17 illustrates a wireless device according to one embodiment of the present disclosure.

[0028] FIG. 18 illustrates a signal processing circuit for a transmission signal according to one embodiment of the present disclosure.

[0029] FIG. 19 illustrates a wireless device according to an embodiment of the present disclosure.

[0030] FIG. 20 illustrates a portable device according to one embodiment of the present disclosure.

[0031] FIG. 21 illustrates a vehicle or autonomous vehicle according to one embodiment of the present disclosure.

[0032] In this disclosure, "A or B" can mean "only A," "only B," or "both A and B." In other words, "A or B" in this disclosure can be interpreted as "A and / or B." For example, "A, B or C" in this disclosure can mean "only A," "only B," "only C," or "any combination of A, B and C."

[0033] As used herein, a slash ( / ) or a comma 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."

[0034] 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 identically to “at least one of A and B.”

[0035] Additionally, in the present disclosure, “at least one of A, B and C” can 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” can mean “at least one of A, B and C.”

[0036] 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, "control information" in 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 (e.g., PDCCH)", "PDCCH" may be proposed as an example of "control information."

[0037] In the following explanation, ‘when, if, in case of’ can be replaced with ‘based on’.

[0038] In the present disclosure, the device obtaining information may include the information being (pre-)set to the device, the information being received from another entity to the device, or the device generating the information.

[0039] Technical features individually described in one drawing in this disclosure may be implemented individually or simultaneously.

[0040] In the present disclosure, higher layer parameters may be parameters set for the terminal, preset, or predefined. For example, a base station or network may transmit higher layer parameters to the terminal. For example, the higher layer parameters may be transmitted via radio resource control (RRC) signaling or medium access control (MAC) signaling.

[0041] In the present disclosure, "setting or defining" may be interpreted as being set or preset to a device through predefined signaling (e.g., SIB, MAC, RRC, DCI (downlink control information), etc.) from a base station or a network. In the present disclosure, "setting or defining" may be interpreted as being set or preset to a device through predefined signaling (e.g., MAC, RRC, SCI (sidelink control information), device-to-device signaling control information, etc.) from another device. In the present disclosure, "setting or defining" may be interpreted as being set or preset to a device.

[0042] In the present disclosure, a 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.

[0043] The technology proposed in the present 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.

[0044] The technology proposed in this disclosure can be implemented with 6G wireless technology and applied to various 6G systems. For example, 6G systems can have key factors such as enhanced mobile broadband (eMBB), ultra-reliable low latency communications (URLLC), massive machine-type communication (mMTC), artificial intelligence (AI) integrated communication, tactile internet, high throughput, high network capacity, high energy efficiency, low backhaul and access network congestion, and enhanced data security.

[0045] FIG. 1 illustrates a device-to-device communication procedure according to one embodiment of the present disclosure. The embodiment of FIG. 1 may be combined with various embodiments of the present disclosure.

[0046] Referring to FIG. 1, in step S101, a first device and a second device can perform synchronization. For example, the first device can be a terminal and / or at least one of the devices proposed in the present disclosure. For example, the second device can 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 can perform an initial cell search operation. For example, the first device can detect at least one synchronization signal transmitted by the second device according to a predefined rule. Here, for example, the synchronization signal can include a plurality of synchronization signals classified according to a structure or purpose (e.g., a primary synchronization signal, a secondary synchronization signal, etc.). 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., a cell identifier).

[0047] In step S103, the first device can obtain system information transmitted by the second device. For example, the system information may include information related to the properties, characteristics, and / or capabilities of the second device required 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 system information before receiving the system information. For example, the request and provision of system information may be performed after a random access procedure described below.

[0048] In step S105, the first device and the second device can perform a random access procedure. For example, the first device can transmit and / or receive at least one message (e.g., a random access preamble, a random access response message, etc.) for the random access procedure based on information related to a 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 can transmit a preamble (e.g., Msg1) through the random access channel, the first device can receive a random access response message (e.g., Msg2), the first device can transmit a message (e.g., Msg3) including 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 can receive a message (e.g., Msg4) for contention resolution and / or connection establishment. For example, Msg1 and Msg3 can be sent and received as one message (e.g., MsgA), and / or Msg2 and Msg4 can be sent and received as one message (e.g., MsgB).

[0049] 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 that controls a connection (e.g., a radio resource control (RRC) layer), a layer that handles mapping between logical channels and transport channels (e.g., a media access control (MAC) layer), a layer that handles physical channels (e.g., a physical (PHY) layer), etc. For example, the first device and the second device may perform at least one of signaling for establishing a connection, signaling for determining settings related to communication, and / or signaling for indicating allocated resources. For example, the control information may be signaled / transmitted via 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.

[0050] 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, transmit, and / or receive data based on signaling of control information. 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, waveform demodulation for each antenna, signal arrangement considering layer mapping, constellation demapping, descrambling, and / or channel decoding.

[0051] For example, the layers of a radio interface protocol between a first device and a second device can be divided into L1 (layer 1), L2 (layer 2), L3 (layer 3), etc. For example, a physical layer belonging to the first layer can provide an information transfer service using a physical channel, and an RRC (radio resource control) layer located in the third layer can play a role in controlling radio resources between the first device and the second device. For this purpose, for example, the RRC layer can exchange RRC messages between the first device and the second device.

[0052] FIG. 2 illustrates a radio protocol architecture according to an embodiment of the present disclosure. The embodiment of FIG. 2 can be combined with various embodiments of the present disclosure. For example, (a) of FIG. 2 may illustrate a radio protocol stack of a user plane for uplink communication or downlink communication, and (b) of FIG. 2 may illustrate a radio protocol stack of a control plane for uplink communication or downlink communication. For example, (c) of FIG. 2 may illustrate a radio protocol stack of a user plane for device-to-device communication, and (d) of FIG. 2 may illustrate a radio protocol stack of a control plane for device-to-device communication.

[0053] For example, the physical layer can provide information transmission services to upper layers using physical channels. For example, the physical layer can be connected to the upper layer, the medium access control (MAC) layer, through a transport channel. For example, data can be transmitted between the MAC layer and the physical layer through the transport channel. For example, transport channels can be classified according to how and with what characteristics data is transmitted over the wireless interface. For example, data can be transmitted between different physical layers, for example, between the physical layers of a first device and a second device, through the physical channel. For example, the physical channel can be modulated using an orthogonal frequency division multiplexing (OFDM) scheme, and time and frequency can be utilized as radio resources.

[0054] For example, the MAC layer can provide services to the upper layer, the radio link control (RLC) layer, through logical channels. For example, the MAC layer can provide a mapping function from multiple logical channels to multiple transport channels. For example, the MAC layer can provide a logical channel multiplexing function by mapping multiple logical channels to a single transport channel. For example, the MAC sublayer can provide data transmission services on logical channels.

[0055] For example, the RLC layer can perform concatenation, segmentation, and reassembly of RLC service data units (SDUs). For example, to guarantee the various quality of service (QoS) required by radio bearers (RBs), the RLC layer can provide three operating modes: transparent mode (TM), unacknowledged mode (UM), and acknowledged mode (AM). For example, AM RLC can provide error correction through automatic repeat request (ARQ).

[0056] For example, the RRC (radio resource control) layer can be defined only in the control plane. For example, the RRC layer can be responsible for controlling logical channels, transport channels, and physical channels in relation to the configuration, re-configuration, and release of radio bearers. For example, an RB can mean a logical path provided by a first layer (e.g., a physical layer) and a second layer (e.g., a MAC layer, an RLC layer, a PDCP (packet data convergence protocol) layer, a SDAP (service data adaptation protocol) layer, etc.) for data transmission between a first device and a second device.

[0057] For example, the functions of the PDCP layer in the user plane may include forwarding of user data, header compression, and ciphering. For example, the functions of the PDCP layer in the control plane may include forwarding of control plane data and ciphering / integrity protection.

[0058] For example, establishing an RB can refer to the process of defining the characteristics of the radio protocol layer and channel to provide a specific service, and setting specific parameters and operating methods for each. For example, RBs can be divided into two types: signaling radio bearers (SRBs) and data radio bearers (DRBs). For example, SRBs can be used as a channel to transmit RRC messages in the control plane, while DRBs can be used as a channel to transmit user data in the user plane.

[0059] For example, a base station-to-terminal transmission (e.g., DL transmission) channel may include at least one of a broadcast channel (BCH) for transmitting system information, and / or a downlink shared channel (SCH) for transmitting user traffic or control messages. For example, traffic or control messages of a downlink multicast or broadcast service may be transmitted through the downlink SCH, or may be transmitted through a separate downlink multicast channel (MCH). Meanwhile, an uplink transmission channel may include at least one of a random access channel (RACH) for transmitting an initial control message, and / or an uplink shared channel (SCH) for transmitting user traffic or control messages. For example, a logical channel located above a 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).

[0060] FIG. 3 illustrates the structure of a wireless frame according to an embodiment of the present disclosure. The embodiment of FIG. 3 can be combined with various embodiments of the present disclosure.

[0061] Referring to FIG. 3, a radio frame 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 include 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 according to a subcarrier spacing (SCS). For example, each slot may include 12 or 14 OFDM (A) symbols, depending on a cyclic prefix (CP).

[0062] For example, when normal CP is used, each slot can contain 14 symbols. For example, when extended CP is used, each slot can contain 12 symbols. Here, for example, the symbols can contain OFDM symbols (or CP-OFDM symbols), SC-FDMA (single carrier-FDMA) symbols (or DFT-s-OFDM (Discrete Fourier Transform-spread-OFDM) symbols).

[0063] Table 2 below shows the number of symbols per slot (N) depending on 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 ) is an example.

[0064] CP type SCS (15*2 u )N slot symb N frame,u slot N subframe,u slot Normal CP15kHz (u=0)1410130kHz (u=1)1420260kHz (u=2)14404120kHz (u=3)14808240kHz (u=4)1416016Extended CP60kHz (u=2)12404

[0065] For example, OFDM(A) numerology (e.g., SCS, CP length, etc.) may be set differently between multiple cells that are merged into a single terminal. Accordingly, the (absolute time) interval of time resources (e.g., subframes, slots, or transmit time intervals (TTIs)) composed of the same number of symbols may be set differently between the merged cells. For example, in the present disclosure, time resources such as subframes, slots, TTIs, etc. may be referred to as time units.

[0066] For example, multiple numerologies, or SCSs, may be supported to support various services. For example, a 15 kHz SCS may support wide areas in traditional cellular bands, while a 30 kHz / 60 kHz SCS may support dense urban areas, lower latency, and wider carrier bandwidth. For example, a 60 kHz or higher SCS may support bandwidths greater than 24.25 GHz to overcome phase noise.

[0067] FIG. 4 illustrates a slot structure of a frame according to an embodiment of the present disclosure. The embodiment of FIG. 4 can be combined with various embodiments of the present disclosure.

[0068] 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 one numerology (e.g., SCS, CP length, etc.). For example, a carrier may include at most N BWPs (where N is a positive integer). For example, data communication may be performed through an activated BWP. For example, each element may be referred to as a resource element (RE) in the resource grid, and one complex symbol may be mapped to it.

[0069] For example, a BWP may be a contiguous set of PRBs in a given numerology. For example, a PRB may be selected from a contiguous subset of common resource blocks (CRBs) for a given numerology on a given carrier.

[0070] For example, the BWP may be at least one of an active BWP, an initial BWP, and / or a default BWP. For example, the UE may not monitor the downlink radio link quality in a DL BWP other than the active DL BWP on the PCell (primary cell). For example, the UE may not receive a physical downlink control channel (PDCCH), a physical downlink shared channel (PDSCH), or a channel state information-reference signal (CSI-RS) (except for radio resource management (RRM)) outside of the active DL BWP. For example, the UE may not trigger channel state information (CSI) reporting for an inactive DL BWP. For example, the UE may not transmit a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH) outside of the active UL BWP. For example, for downlink, the initial BWP can be given as a set of consecutive resource blocks (RBs) for the remaining minimum system information (RMSI) CORESET (control resource set) (set by the physical broadcast channel (PBCH)). For uplink, for example, 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 a higher layer. For example, the initial value of the default BWP can be the initial DL BWP.For energy saving, if a terminal does not detect DCI (downlink control information) for a certain period of time, the terminal may switch its active BWP to a default BWP.

[0071] In the present disclosure, PSCCH may be replaced by a control channel, a physical control channel, a control channel associated with a sidelink, a physical control channel associated with a sidelink, a device-to-device physical control channel, etc. In the present disclosure, PSSCH may be replaced by a shared channel, a physical shared channel, a shared channel associated with a sidelink, a physical shared channel associated with a sidelink, a device-to-device physical shared channel, etc. For example, SL communication may be replaced by device-to-device communication. For example, in terms referring to various channels and / or signals associated with SL communication, the SL part may be replaced by "device-to-device."

[0072] In the present disclosure, PUCCH may be replaced by a control channel, a physical control channel, an uplink-related control channel, an uplink-related physical control channel, 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 shared channel (e.g., PUSCH) may be replaced by a shared channel, a physical shared channel, an uplink-related shared channel, an uplink-related physical shared channel, a device-to-base station physical shared channel, a terminal-to-base station physical shared channel, etc. For example, UL communication may be replaced by 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 part may be replaced by "device-to-base station" or "terminal-to-base station."

[0073] In the present disclosure, a base station-to-terminal physical control channel (e.g., PDCCH) may be replaced by a control channel, a physical control channel, a downlink-related control channel, a downlink-related physical control channel, 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 shared channel (e.g., PDSCH) may be replaced by a shared channel, a physical shared channel, a downlink-related shared channel, a downlink-related physical shared channel, a base station-to-device physical shared channel, a base station-to-terminal physical shared channel, etc. For example, DL communication may be replaced by base station-to-device communication or base station-to-terminal communication. For example, the DL part in terms referring to various channels and / or signals related to DL communication may be replaced by "base station-to-device" or "base station-to-terminal."

[0074] FIG. 5 illustrates an example of a BWP according to an embodiment of the present disclosure. The embodiment of FIG. 5 can be combined with various embodiments of the present disclosure. In the embodiment of FIG. 5, it is assumed that there are three BWPs.

[0075] Referring to FIG. 5, for example, a common resource block (CRB) may be a carrier resource block numbered from one end of a 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 a resource block grid.

[0076] For example, BWP is point A, offset from point A (N start BWP ) and bandwidth (N size BWP) can be set by. For example, point A can be an outer reference point of the PRB of a carrier where subcarrier 0 of all numerologies (e.g., all numerologies supported by the network on that carrier) aligns. For example, the offset can be the PRB spacing between the lowest subcarrier in a given numerology and point A. For example, the bandwidth can be the number of PRBs in a given numerology.

[0077] FIG. 6 illustrates a communication structure that can be provided in a 6G system according to an embodiment of the present disclosure. The embodiment of FIG. 6 can be combined with various embodiments of the present disclosure.

[0078] As core implementation technologies of the 6G system, technologies such as artificial intelligence (AI), THz (terahertz) communication, optical wireless technology, free-space optical transmission (FSO) backhaul networks, massive 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.

[0079] - Artificial Intelligence: Incorporating AI into communications can streamline and improve real-time data transmission. AI can use numerous analytics to determine how complex target tasks should be performed. For example, AI can increase efficiency and reduce processing delays. Time-consuming tasks such as handovers, network selection, and resource scheduling can be performed instantly using AI. AI can also play a crucial role in machine-to-machine (M2M), machine-to-human, and human-to-machine communications. AI can also facilitate rapid communication in brain-computer interfaces (BCIs). 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.

[0080] - THz communication (terahertz communication): Data rates can be increased by increasing the bandwidth. This can be achieved by using sub-THz communication with wide bandwidths and applying advanced massive MIMO technology. THz waves, also known as sub-millimeter waves, typically refer to the frequency range between 0.1 THz and 10 THz, with corresponding wavelengths ranging from 0.03 mm to 3 mm. The 100 GHz to 300 GHz band (sub-THz band) is considered a key part of the THz spectrum for cellular communications. Adding the sub-THz band to the mmWave band will increase the capacity of 6G cellular communications. Among the defined THz bands, 300 GHz to 3 THz lies in the far infrared (IR) frequency band. While part of the optical band, the 300 GHz to 3 THz band lies at the boundary of the optical band, immediately following the RF band. Therefore, this 300 GHz to 3 THz band exhibits similarities to RF. Key characteristics of THz communications include (i) the widely available bandwidth to support very high data rates and (ii) the high path loss that occurs at high frequencies (requiring highly directional antennas). The narrow beamwidths generated by highly directional antennas reduce interference. The small wavelength of THz signals allows for a significantly larger number of antenna elements to be integrated into devices and base stations operating in this band. This enables the use of advanced adaptive array technologies to overcome range limitations.

[0081] - Large-scale MIMO technology

[0082] - Hologram beamforming (HBF)

[0083] - Optical wireless technology

[0084] - Free-space optical transmission backhaul network (FSO backhaul network)

[0085] - Quantum communication

[0086] - Cell-free communication

[0087] - Integration of wireless information and power transmission

[0088] - Integration of wireless communication and sensing

[0089] - Integrated access and backhaul network

[0090] - Big data analysis

[0091] - Reconfigurable intelligent surface

[0092] - metaverse

[0093] - Block chain

[0094] 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 can include UAM, RAM, UAS, and uncrewed aerial vehicles (UAVs).

[0095] - Autonomous driving (self-driving): V2X (vehicle to everything), a key element in building autonomous driving infrastructure, can be a technology that allows cars to communicate and share with various elements on the road for autonomous driving, such as vehicle to vehicle (V2V) wireless communication and vehicle to infrastructure (V2I) wireless communication.

[0096] Non-terrestrial network (NTN): NTN can refer to a network or network segment that utilizes radio frequency (RF) resources mounted on satellites (or UAS platforms). NTN services may be considered to secure wider coverage or provide wireless communication services in locations where the installation of wireless communication base stations is difficult.

[0097] - 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.

[0098] - Reconfigurable intelligent surface (RIS): RIS can be used to manipulate and enhance signal propagation in wireless communication environments. For example, a 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 example, a RIS can improve signal reception by controlling the path, phase, and / or intensity of the propagating signal. For example, in the case of a RIS, power consumption can be very low because power is consumed only for controlling the phase and amplitude of the small antennas. For example, because a RIS can be reconfigured to suit different environments, it can meet diverse communication requirements and operate effectively in dynamic network environments.

[0099] 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 may be combined with various embodiments of the present disclosure.

[0100] Referring to FIG. 7, NTN communication can be performed based on satellite networks, high-altitude platform stations (HAPS) as international mobile telecommunications (IMT) base stations (BS), and terminals capable of aerial communication (e.g., AAMs). For example, to improve coverage, etc., devices such as satellite networks, HIBS, and terminals capable of aerial communication (e.g., AAMs) 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.

[0101] Transmitting system information (e.g., MIB) in the THz frequency band can be inefficient because the beam width becomes narrower in high-frequency bands, requiring more beam sweeps to cover the entire cell area. This method of transmitting system information can be even more inefficient, especially when there are only a few users within the cell. Accordingly, a system information transmission procedure, such as that illustrated in FIG. 8 , may be employed.

[0102] FIG. 8 illustrates a procedure for transmitting system information for THz communication according to an embodiment of the present disclosure. The embodiment of FIG. 8 may be combined with various embodiments of the present disclosure.

[0103] The embodiment of FIG. 8 was developed with THz in mind, but is also applicable to 6G communication environments where THz is not applicable. Furthermore, 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 acquired through the procedure illustrated in FIG. 8.

[0104] Referring to FIG. 8, in step S801, the base station (80) may transmit system information of cell #1 through cell #2. For example, the base station (820) may provide at least two cells, and cell #1 may use a THz frequency band, and cell #2 may use a frequency band other than the THz frequency band. Here, the system information may include at least one of an SFN, a PDCCH configuration for SIB1, cell barring, cell re-selection, and subcarrier spacing generated in a higher layer, and may include at least one of an SFN, a half frame indicator, and an SSB index generated in a physical layer. For this purpose, for example, cell #1 and cell #2 may have a relationship of a secondary cell and a primary cell.

[0105] In step S803, the terminal (810) can acquire synchronization for cell #1. Synchronization can be acquired by detecting a synchronization signal. Typically, synchronization is acquired before receiving system information. However, since the system information for cell #1 is received from cell #2, synchronization acquisition for cell #1 can be performed after receiving the system information. For example, the terminal (810) can acquire synchronization based on the system information. However, unlike FIG. 8, according to another example, synchronization acquisition can be performed before step S801.

[0106] In step S805, the terminal (810) may transmit a signal for accessing cell #1. For example, the signal may include a random access preamble. The structure of the signal and the resources (e.g., channels) for transmitting the signal may be identified through system information. Subsequently, in step S807, the terminal (810) and the base station (820) may perform an access procedure for cell #1 and communicate. In this step, operations according to various embodiments described below may be performed.

[0107] 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) hands over to cell #1 of the base station (820). However, in the case of handover, the system information of cell #1 may be received from a cell of a base station other than cell #2 of the base station (820).

[0108] Below, a low power wake-up signal / receiver is described.

[0109] 5G systems are designed and developed for both mobile telephony and vertical use cases. In addition to latency, reliability, and availability, terminal energy efficiency may also be critical in 5G. Currently, 5G devices may require recharging weekly or even daily, depending on individual usage. Typically, 5G devices consume tens of milliwatts in RRC idle / inactive states and hundreds of milliwatts in RRC connected states. Designing for extended battery life may be essential for improving energy efficiency and enhancing the user experience.

[0110] Energy efficiency can be even more important for devices without a continuous energy source, such as those powered by small rechargeable or single coin-cell batteries. Among vertical use cases, sensors and actuators can be widely used for monitoring, measurement, and charging. Typically, these batteries are non-rechargeable and can be expected to last at least several years, as described in the technical literature. Wearable devices include smartwatches, rings, eHealth devices, and medical monitoring devices. Typical battery capacities can struggle to last beyond the required one to two weeks.

[0111] Power consumption may vary depending on the length of the configured wake-up period, such as the paging cycle. To meet the above battery life requirements, a large number of extended discontinuous reception (e.g., eDRX) cycles are expected to be used, which will result in a long latency, which may not be suitable for services that require both long battery life and low latency. For example, in a fire detection and extinguishing use case, the fire shutters should close and the sprinklers should be activated by the actuator within 1-2 seconds after the sensor detects a fire. A long extended discontinuous reception (e.g., eDRX) cycle cannot meet the latency requirements, so extended discontinuous reception (e.g., eDRX) may not be suitable for latency-critical use cases.

[0112] Currently, terminals must wake up periodically during discontinuous reception (e.g., DRX) cycles, which can lead to a significant power consumption during periods of no signal or data traffic. If terminals could wake up only when triggered, such as by paging, power consumption could be drastically reduced. This could be achieved by using a separate receiver that uses a wake-up signal to trigger the main radio and monitors 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 maximum power-saving mode when not powered on.

[0113] The following terms may be used in this document:

[0114] - Main Radio (MR): Transmit / receive module that operates for NR signals / channels except for low-power weather-related signals / channels.

[0115] - Low-power weather receiver (e.g., LP-WUR(LR)): a receiving module that operates to receive / process signals / channels related to low-power weather.

[0116] The following use cases can be considered for low-power weather signals / weather radios (e.g., LP-WUS / WUR):

[0117] - IoT cases including industrial wireless sensors, controllers, actuators, etc.

[0118] - Examples of wearable devices such as smart watches, rings, e-health devices, and medical monitoring devices.

[0119] - eMBB cases including XR / smart glasses, smartphones, etc.

[0120] Below, technologies related to low power weather signals / weather radios (e.g., LP-WUS / WUR) are described.

[0121] The following investigations can be conducted for low-power weather signals and receivers for NR.

[0122] - Low-power weather signals and receivers, including power savings, coverage, system overhead impact, network energy impact, and other related aspects.

[0123] - Provides analysis of receiver architecture, power consumption, noise figures, etc. for low-power weather receivers.

[0124] - L1 design and procedure changes required to support low-power weather signaling and link performance evaluation.

[0125] - Changes to the upper layer protocol required to support low-power weather signals.

[0126] - Related upper-level influences

[0127] In RRC idle / active mode, it has been observed that significant UE power saving gains (up to 90% or more) can be achieved by triggering UE main radio (e.g., MR) paging monitoring using low power wake-up signal / wake-up radio (e.g., LP-WUS / WUR) compared to conventional idle mode discontinuous reception (e.g., I-DRX) operation (with and without paging early indication (e.g., PEI)) when sufficient relaxation is applied to the main radio (e.g., MR) RRM measurements. Furthermore, significant paging latency reduction and moderate UE power saving gains are observed compared to conventional extended discontinuous reception (e.g., extended DRX; eDRX) operation if both low power wake-up signal (e.g., LP-WUS) monitoring and the corresponding paging monitoring after main radio (e.g., MR) wake-up are performed without restriction within the paging time window (e.g., PTW) of conventional extended discontinuous reception (e.g., eDRX).

[0128] In RRC connected mode, it was observed that triggering base station-to-device physical control channel (e.g., PDCCH) monitoring of the UE's main radio (e.g., MR) using a low-power weather signal / weather radio (e.g., LP-WUS / WUR) can achieve moderate UE power saving gains (up to 10% or more) with minimal capacity impact compared to existing UE power saving techniques under various types of XR traffic and system load scenarios. Furthermore, it was observed that significant UE power saving gains (up to 60% or more) and moderate UPT improvement (up to 10% or more) can be achieved for FTP and IM traffic when the UE's main radio (e.g., MR) transitions to the deep sleep state during NR low-power weather signal (e.g., LP-WUS) monitoring. Furthermore, a recent study validated the feasibility of offloading cell RRM measurements from the UE's main radio (e.g., MR) to a low-power weather receiver (e.g., LP-WUR) through a reasonable evaluation methodology. Additionally, several issues were identified at the upper level that could be further discussed at the WI stage.

[0129] Below, the paging procedure in idle / inactive state in 5G NR is described.

[0130] In 5G NR, if a terminal does not have ongoing data transmissions / receptions, 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 in 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 base station-to-terminal physical control channel (e.g., physical downlink control channel (PDCCH) monitoring occasions, which may consist of multiple time slots (e.g., subframes or OFDM symbols), and base station-to-terminal control information (e.g., downlink control information (DCI)) with a CRC scrambled with a P-RNTI may be transmitted at the paging occasion (e.g., PO). By means of a base station-to-terminal control information (e.g., DCI) format (e.g., DCI format 1_0) with a CRC scrambled with P-RNTI, the following information may be transmitted, for example:

[0131] - Short Messages Indicator according to Table 3

[0132] - Short messages according to Table 4. In Table 4, bit 1 is the most significant bit (MSB).

[0133] - Frequency domain resource allocation

[0134] - Time domain resource allocation

[0135] - VRB-to-PRB mapping according to Table 5

[0136] - Modulation and coding method

[0137] - Transport Block (TB) scaling

[0138] - Tracking reference signal (TRS) availability indication

[0139] - Reserved bits.

[0140] Bit Field Short Message Indicator 00 Reserved 01 Only scheduling information for paging and TRS availability indication are displayed in base station-to-terminal control information (e.g., DCI) if trs-ResourceSetConfig is configured 10 Only TRS availability indication is displayed in base station-to-terminal control information (e.g., DCI) if short message and trs-ResourceSetConfig are configured 11 Both scheduling information for paging, TRS availability indication and short message are included in base station-to-terminal control information (e.g., DCI) if trs-ResourceSetConfig is configured

[0141] BitShortMessage1If set to systemInfoModification1: Indication of Broadcast Control Channel (BCCH) modification other than SIB6, SIB7 and SIB82If set to etwsAndCmasIndication1: Indication of Earthquake and Tsunami Warning System (ETWS) Primary Notification and / or ETWS Secondary Notification and / or Commercial Mobile Alert Service (CMAS) Notification3stopPagingMonitoringThis bit is available only in case of shared spectrum channel access and if the RRC parameter nrofPDCCH-MonitoringOccasionPerSSB-InPO is present. If set to 1: Indication that the UE may stop monitoring the eNB-to-UE Physical Control Channel (e.g., PDCCH) occasion(s) for paging as specified in the technical literature4If set to systemInfoModification-eDRX1: Indication of BCCH modification other than SIB6, SIB7 and SIB8. This instruction is applicable only to terminals using extended discontinuous reception (e.g., eDRX) cycles that are longer than the broadcast control channel (e.g., BCCH) modification cycle. 5 - 8 It is not used in the current technical literature and is ignored when received by the terminal.

[0142] Bit fields mapped to indices VRB-to-PRB mapping 0 Not interleaved 1 Interleaved

[0143] 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 a 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.) in 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, a paging group list, a terminal identifier associated with the paging record, an access type associated with the paging record, a paging cause associated with the paging record, a TMSI associated with the paging terminal identifier, an RNTI associated with the paging terminal identifier, etc.

[0144] The following table illustrates a paging message and a description of the fields within the paging message.

[0145] Paging Record Field Descriptions Access Type (accessType) May indicate whether the paging message originated from a PDU session from a non-3GPP access. Paging Record List (pagingRecordList) If the network includes pagingRecordList-v1700, it will contain the same number of entries and will be listed in the same order as pagingRecordList (i.e., without a suffix). Paging Reason (pagingCause) Indicates whether the paging message originated from IMS voice. If this field is present, it may mean that the paging entry is for IMS voice. If the upper layer supports paging reason and this field is absent but pagingRecordList-v1700 is present, it may mean that the paging entry is for a service other than IMS voice. Otherwise, the paging cause may not have been determined.

[0146] For example, in multi-beam operations, a terminal may assume that the same paging message is repeated across all transmitted beams. The paging message may be the same for both radio access network (RAN)-initiated paging and core network (CN)-initiated paging.

[0147] A paging frame (PF) is a radio frame and may contain one or more paging occasions (e.g., POs) or a starting point of a paging occasion (e.g., PO).

[0148] For example, a terminal may monitor one paging event (e.g., PO) per discontinuous reception (e.g., DRX) cycle. The paging frame (e.g., PF) and paging event (e.g., PO) for paging may be determined by predefined formulas.

[0149] For example, in some implementations, a 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), an index i_s indicating an index of a paging occasion (e.g., PO) may be determined by i_s = floor(UE_ID) mod Ns, where T is a discontinuous reception (e.g., DRX) cycle of the UE determined by the minimum value of UE-specific discontinuous reception (e.g., DRX) value(s) and / or a 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 occasions for a paging frame (e.g., PF), PF_offset is an offset used for paging frame (e.g., PF) determination, and UE_ID may be a value determined based on 5G-S-TMSI. there is.

[0150] For example, a parameter Ns regarding the number of paging occasions per paging frame, a parameter nAndPagingFrameOffset used to derive the total number of paging frames in T, a parameter nrofPDCCH-MonitoringOccasionsPerSSB-InPO regarding the number of base station-to-terminal physical control channel (e.g., PDCCH) monitoring occasions corresponding to SSBs within a paging occasion, and a length of a 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 parameter nAndPagingFrameOffset.

[0151] For example, the base station-to-terminal physical control channel (e.g., PDCCH) monitoring occasions for paging may be determined based on the parameter firstPDCCH-MonitoringOccasionOfPO, which indicates the first base station-to-terminal physical control channel (e.g., PDCCH) monitoring occasion for paging of each paging occasion (e.g., PO) of a paging frame (e.g., PF), and the parameter nrofPDCCH-MonitoringOccasionsPerSSB-InPO.

[0152] For example, the above parameter firstPDCCH-MonitoringOccasionOfPO may be signaled by SIB1 for paging in the initial base station-to-terminal communication (e.g., DL link) partial bandwidth (e.g., bandwidth part; BWP), and may be signaled with the corresponding partial bandwidth (e.g., BWP) setting for paging in a base station-to-terminal partial bandwidth (e.g., DL BWP) other than the initial base station-to-terminal communication (e.g., DL link) partial bandwidth (e.g., BWP).

[0153] For example, to reduce power consumption, a UE may use Paging Early Indication (PEI) in RRC_IDLE and RRC_INACTIVE states. If a Paging Early Indication (e.g., PEI) setting is provided in the system information, a UE in 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 in the system information. The UE monitors one Paging Early Indication (e.g., PEI) per discontinuous reception (e.g., DRX) cycle. A Paging Early Indication occasion (e.g., PEI-occasion; PEI-O) is a set of base station-to-UE physical control channel (e.g., PDCCH) monitoring occasions and may consist of multiple time slots (e.g., subframes or OFDM symbols) in which a Paging Early Indication (e.g., PEI) can be sent.

[0154] For example, in multi-beam operations, a terminal may assume that the same paging early indication (e.g., PEI) is repeated on all transmitted beams. The time position of a paging early indication occasion (e.g., PEI-O) with respect to a paging occasion (e.g., PO) of the terminal may be determined by a reference point and an offset, wherein the reference point is the beginning of a reference frame determined by a frame-level offset from the beginning of a first paging frame (e.g., PF) among the paging frames (e.g., PF)(s) associated with the paging early indication occasion (e.g., PEI-O) provided by pei-FrameOffset in SIB1, and the offset may be a symbol-level offset from the reference point to the beginning of a first base station-to-terminal physical control channel (e.g., PDCCH) monitoring occasion of this paging early indication occasion (e.g., PEI-O) provided by firstPDCCH-MonitoringOccasionOfPEI-O in SIB1.

[0155] For example, if one paging early indication time (e.g., PEI-O) is associated with the paging times (e.g., PO) of two paging frames (e.g., PF), the two paging frames (e.g., PF) may be consecutive paging frames (e.g., PF) calculated by the parameters PF_offset, T, Ns, and N. Further details on paging early indication (e.g., PEI) can be found in the technical literature.

[0156] According to one embodiment of the present disclosure, a paging discontinuous reception (e.g., DRX) may be defined in which a terminal in RRC_IDLE or RRC_INACTIVE is only required to monitor paging channels during one paging period (e.g., PO) per discontinuous reception (e.g., DRX) cycle. For example, the following paging discontinuous reception (e.g., DRX) cycles may be configured by the network:

[0157] i) For CN-initiated paging, the default cycle is broadcast as system information,

[0158] ii) For CN-initiated paging, terminal-specific cycles can be established via non-access stratum (NAS) signaling,

[0159] iii) A terminal-specific cycle can be established via RRC signaling for radio access network (RAN)-initiated paging.

[0160] For example, a terminal may use the shortest of the applicable discontinuous reception (e.g., DRX) cycles. For example, a terminal in 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 in RRC_INACTIVE may use the shortest of the three discontinuous reception (e.g., DRX) cycles.

[0161] Below, the terminal operation sequence diagram and signaling operation between the base station and the terminal are described.

[0162] FIG. 9 illustrates an operational flowchart of a terminal performing one or more physical channel / signal transmissions to which the method proposed in the present disclosure may be applied, according to an embodiment of the present disclosure. The embodiment of FIG. 9 may be combined with various embodiments of the present disclosure.

[0163] Referring to (a) of FIG. 9, a flowchart illustrating a process by which a terminal performs terminal-to-base station data transmission is illustrated. 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 information for terminal-to-base station channel transmission. Subsequently, for example, the terminal may transmit terminal-to-base station data / channel.

[0164] At this time, for example, the terminal can check whether all the indicated data / channels have been transmitted, and if not, perform (re- and / or additionally) terminal-to-base station data / channel transmission. If all have been transmitted, the above procedure can be terminated.

[0165] Referring to (b) of FIG. 9, a flowchart illustrating a process by which a terminal performs base station-to-terminal data reception is illustrated. For example, the terminal may receive base station-to-terminal data / channel related information. Subsequently, the terminal may receive base station-to-terminal control information for base station-to-terminal data reception, or information for base station-to-terminal channel reception. Subsequently, for example, the terminal may receive base station-to-terminal data / channel.

[0166] At this time, for example, the terminal can check whether all the indicated data / channels have been received, and if not all have been received, perform base station-to-terminal data / channel reception (again and / or additionally).

[0167] For example, if all indicated data / channels have been received, the terminal can decide whether feedback transmission is required, and if no feedback transmission is required, the procedure can be terminated.

[0168] For example, if feedback transmission is required, the terminal may transmit feedback (e.g., HARQ-ACK transmission). After that, the above procedure may be terminated.

[0169] FIG. 9 is merely for convenience of explanation 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.

[0170] FIG. 10 illustrates an operational flowchart of a base station performing one or more physical channel / signal transmissions to which the method proposed in the present disclosure may be applied, according to an embodiment of the present disclosure. The embodiment of FIG. 10 may be combined with various embodiments of the present disclosure.

[0171] Referring to (a) of FIG. 10, a flowchart illustrating a process by which a base station performs terminal-to-base station data reception is illustrated. 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 information for terminal-to-base station channel transmission. Subsequently, for example, the base station may receive terminal-to-base station data / channel.

[0172] At this time, for example, the base station can check whether all the indicated data / channels have been received, and if not all have been received, perform (re- and / or additionally) terminal-to-base station data / channel reception. If all have been received, the above procedure can be terminated.

[0173] Referring to (b) of FIG. 10, a flowchart illustrating a process by which a base station performs base station-to-terminal data transmission is illustrated. 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 base station-to-terminal data reception, or information for base station-to-terminal channel reception. Subsequently, for example, the base station may transmit base station-to-terminal data / channel.

[0174] At this time, for example, the base station can check whether all the indicated data / channels have been transmitted, and if not all have been transmitted, perform base station-to-terminal data / channel transmission (again and / or additionally).

[0175] For example, if all indicated data / channels have been transmitted, the base station can determine whether feedback reception is required, and if no feedback reception is required, the procedure can be terminated.

[0176] For example, if feedback reception is required, the base station can receive feedback (e.g., a HARQ-ACK transmission). After that, the above procedure can be terminated.

[0177] FIG. 10 is merely for convenience of explanation 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.

[0178] FIG. 11 illustrates signaling between a base station and a terminal performing one or more physical channel / 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.

[0179] Referring to (a) of FIG. 11, the base station may transmit terminal-to-base station data / channel related information to the terminal. Thereafter, the base station may 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. Thereafter, the terminal may transmit terminal-to-base station data / channel to the base station.

[0180] Referring to (b) of FIG. 11, the base station may transmit base station-to-terminal data / channel related information to the terminal. Thereafter, the base station may transmit base station-to-terminal control information for base station-to-terminal data reception or information for base station-to-terminal channel reception to the terminal. Thereafter, the base station may transmit base station-to-terminal data / channel to the terminal. Thereafter, (if a feedback operation is configured to be performed) the terminal may transmit feedback (e.g., HARQ-ACK feedback) to the base station.

[0181] FIG. 11 is merely for convenience of explanation 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.

[0182] For example, in the present disclosure, transmitting or receiving a low-power weather signal time (e.g., LO) may mean transmitting or receiving a low-power weather signal (e.g., LP-WUS) at the low-power weather signal time (e.g., LO). For example, in the present disclosure, transmitting or receiving a low-power weather signal monitoring time (e.g., LMO) may mean transmitting or receiving a low-power weather signal (e.g., LP-WUS) at the low-power weather 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 at the paging time (e.g., PO). For example, performing paging in the present disclosure may mean receiving a paging message at the paging time (e.g., PO).

[0183] For example, in the present disclosure, code points can be interchanged / substituted with code point values.

[0184] The symbols / abbreviations / terms used in this disclosure are as follows.

[0185] ACS(Adjacent Channel Selectivity): Adjacent Channel Selectivity

[0186] ADC(Analog to Digital Converter): Analog-to-digital converter

[0187] ASCS(Adjacent Subcarrier selectivity): Adjacent Subcarrier Selectivity

[0188] ASK(Amplitude Shift Keying): Amplitude Shift Keying

[0189] BB(Base Band): Basic Band

[0190] BLER(Block Error Rate): Block Error Rate

[0191] BPF(Band Pass Filter): Base Pass Filter

[0192] BWP(Bandwidth part): Partial bandwidth

[0193] CAP(Channel Access Procedure): Channel Access Procedure

[0194] CFO(Center frequency offset): Center frequency offset

[0195] CORESET(Control resource set): Control resource set

[0196] CRC(Cyclic redundancy check): Cyclic redundancy check

[0197] CP-OFDMA (Cyclic Prefix-Orthogonal Frequency-Division Multiple Access): Cyclic Prefix-Orthogonal Frequency-Division Multiple Access

[0198] CSI (Channel state information): Channel state information

[0199] DCI (Downlink Control Information): Base station-to-terminal control information

[0200] DCP (DCI with CRC scrambled by PS-RNTI): Base station-to-terminal control information scrambled with PS-RNTI

[0201] DRX (Discontinuous Reception): Discontinuous Reception

[0202] DFT-S-OFDMA (Discrete Fourier Transform-Spread-Orthogonal Frequency-Division Multiple Access): Discrete Fourier Transform-Spread-Orthogonal Frequency-Division Multiple Access

[0203] eDRX (Extended DRX): Extended Discontinuous Reception

[0204] EPRE (Energy Per Resource Element): Energy per resource element

[0205] FAR(False Alarm Rate): False Alarm Rate

[0206] FCS (Frame Check Sequence): Frame Check Sequence

[0207] FSK(Frequency Shift Keying): Frequency Shift Keying

[0208] FLL(Frequency Locked Loop): Frequency Locked Loop

[0209] FFT(Fast Fourier Transform): Fast Fourier Transform

[0210] FR1(Frequency range 1): Frequency range 1

[0211] FR2(Frequency range 2): Frequency range 2

[0212] ICS(In-channel Selectivity): In-channel selectivity

[0213] IF(Intermediate Frequency): Intermediate Frequency

[0214] LP-WUS (Low Power-Wake Up Signal): Low Power Wake Up Signal

[0215] LP-WUR (Low Power-Wake Up Receiver): Low Power Wake Up Receiver

[0216] LP-SS (Low Power-Synchronization Signal): Low-power synchronization signal

[0217] LNA(Low Noise Amplifier): Low Noise Amplifier

[0218] LPF(Low Pass Filter): Low-pass filter

[0219] LR(LP-WUR): Low Power Weather Receiver

[0220] MDR (Miss Detection Rate): Miss Detection Rate

[0221] MC-ASK (Multiple Carrier-Amplitude Shift Keying): Multicarrier-Amplitude Shift Keying

[0222] MC-FSK (Multiple Carrier-Frequency Shift Keying): Multi-carrier-frequency shift keying

[0223] MR(Main Radio): Main Radio

[0224] NF(Noise Figure): Noise Figure

[0225] OOK(On-Off keying): On / Off keying

[0226] OFDM (Orthogonal Frequency Division Multiplexing): Orthogonal Frequency Division Multiplexing

[0227] PDCCH (Physical Downlink Control Channel): Base station-to-terminal physical control channel

[0228] PUCCH (Physical Uplink Control Channel): Terminal-to-base station physical control channel

[0229] PUSCH (Physical Uplink Shared Channel): Terminal-to-base station physical shared channel

[0230] PDSCH (Physical Downlink Shared Channel): Base station-to-terminal physical shared channel

[0231] PRACH (Physical Random-Access Channel): Physical Random Access Channel

[0232] PEI (Paging Early Indication): Paging Early Indication

[0233] PO(Paging Occasion): Paging Occasion

[0234] PTW(Paging Time Window): Paging Time Window

[0235] PLL(Phase Locked Loop): Phase Locked Loop

[0236] PAPR (Peak to Average Power Ratio): Maximum average power ratio

[0237] RRC (Radio Resource Control): Radio Resource Control

[0238] RRM (Radio Resource Management): Radio Resource Management

[0239] RLM (Radio Link Monitoring): Wireless Link Monitoring

[0240] RS(Reference Signal): Reference signal

[0241] RSRP(Reference Signal Received Power): Reference signal received power

[0242] RSRQ (Reference Signal Received Quality): Reference signal received quality

[0243] RTC(Real Time Clock): Real Time Clock

[0244] RF(Radio Frequency): Radio Frequency

[0245] SCS(Sub-carrier spacing): Subcarrier spacing

[0246] SSB(Synchronization Signal Block): Synchronization Signal Block

[0247] SSSG(Search Space Set Group): Search Space Set Group

[0248] SINR(Signal to Interference plus Noise Ratio): Signal to Interference plus Noise Ratio

[0249] SNR(Signal to Noise Ratio): Signal to Noise Ratio

[0250] SC(Subcarrier): Subcarrier

[0251] TBS(Transport Block Size): Transport Block Size

[0252] TDRA (Time Domain Resource Allocation): Time Domain Resource Allocation

[0253] Ucell (Unlicensed cell): Unlicensed cell

[0254] UE(User Equipment): terminal

[0255] XR(Extended reality): extended reality

[0256] TAG(Timing advance group): Timing advance group

[0257] AmIoT (Ambient Internet of Things): Ambient Internet of Things

[0258] CW (Carrier Wave): Carrier wave

[0259] BSC (Backscattering): Backscattering

[0260] BSS(Backscattered signal): Backscattered signal

[0261] SIC(Self-Interference Cancellation): Self-Interference Cancellation

[0262] RFID(Radio Frequency Identifier): Radio Frequency Identifier

[0263] IN(Intermediate Node): Intermediate node

[0264] SLIV (Starting and Length Indicator Value): A starting and length indicator value. This is an indication 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), and may be set as a component of an entry configuring a time domain resource allocation (e.g., TDRA) field within a base station-to-terminal physical control channel (e.g., PDCCH) that schedules the base station-to-terminal physical shared channel (e.g., PDSCH) and / or the terminal-to-base station physical shared channel (e.g., PUSCH).

[0265] BWP (BandWidth Part): Partial bandwidth. It can be composed of consecutive resource blocks (RBs) on the frequency axis and can correspond to a single numerology (e.g., subcarrier spacing, cyclic prefix (e.g., CP) length, slot / mini-slot duration). In addition, multiple partial bandwidths (e.g., BWPs) can be configured on a single carrier (the number of partial bandwidths (e.g., BWPs) per carrier can also be limited), but the number of activated partial bandwidths (e.g., BWPs) can be limited to a portion (e.g., 1) per carrier.

[0266] CORESET (COntrol REsourse SET): Control resource set. This refers to the time-frequency resource region in which base station-to-terminal physical control channels (e.g., PDCCH) can be transmitted. The number of control resource sets (e.g., CORESET) per partial carrier (e.g., BWP) may be limited.

[0267] REG(Resource element group): Resource element group

[0268] SFI (Slot Format Indicator): Slot Format Indicator. This indicator indicates the symbol-level base station-to-terminal / terminal-to-base station direction within a specific slot(s). It can be transmitted through a common base station-to-terminal physical control channel (e.g., PDCCH) within the group.

[0269] COT(Channel occupancy time): Channel occupancy time

[0270] SPS (Semi-persistent scheduling): semi-persistent scheduling

[0271] QCL(Quasi-Co-Location): Quasi-co-location. A quasi-co-location (e.g., QCL) relationship between two reference signals can mean that quasi-co-location (e.g., QCL) parameters such as Doppler shift, Doppler spread, average delay, delay spread, and spatial Rx parameters obtained from one reference signal can also be applied to the other reference signal (or antenna port(s) of the reference signal). 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 for a pseudo-co-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 for a pseudo-co-location (e.g., QCL) type Y (Y=A, B, C, or D, but X≠Y).

[0272] TCI (Transmission Configuration Indication): A transmission configuration indicator. A TCI state includes a pseudo-co-location (e.g., QCL) relationship between one or more base station-to-terminal reference signals (e.g., DL RS) and a decoding reference signal (e.g., DM-RS) port of a base station-to-terminal physical shared channel (e.g., PDSCH), a decoding reference signal (e.g., DM-RS) port of a base station-to-terminal physical control channel (e.g., PDCCH), or a channel state information reference signal (e.g., CSI-RS) port(s) of a channel state information reference signal (e.g., CSI-RS) resource. For the transmission configuration indicator among the fields in the base station-to-terminal control information (e.g., DCI) that schedules the base station-to-terminal physical shared channel (e.g., PDSCH), the transmission configuration indicator (e.g., TCI) state index corresponding to each code point constituting the field is activated by the MAC CE, and the transmission configuration indicator (e.g., TCI) state setting for each transmission configuration indicator (e.g., TCI) state index can be set through RRC signaling. In the NR system, the transmission configuration indicator (e.g., TCI) state is set between the base station-to-terminal reference signal (e.g., DL RS), but in the future, 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. For example, as examples of terminal-to-base station reference signals (e.g., UL RS), there may be 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), etc.

[0273] SRI (SRS resource indicator): Sounding reference signal (e.g., SRS) resource indicator. One of the sounding reference signal (e.g., SRS) resource index values ​​set in the sounding reference signal (e.g., SRS) resource indicator among the fields in the base station-to-terminal control information (e.g., DCI) that schedules a terminal-to-base station physical shared channel (e.g., PUSCH) 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 transmitting and receiving a reference signal linked to the corresponding sounding reference signal (e.g., SRS) resource. At this time, a reference reference signal (eg, RS) is set by RRC signaling through the SRS-SpatialRelationInfo parameter for each sounding reference signal (eg, SRS) resource, and a synchronization signal / physical broadcast channel (eg, SS / PBCH) block, a channel state reference signal (eg, CSI-RS), or a sounding reference signal (eg, SRS) can be set as the reference reference signal (eg, RS).

[0274] LO (LP-WUS occasion): A low-power weather signal opportunity. For example, it may consist of one or more LP-WUS monitoring opportunities.

[0275] LMO: LP-WUS Monitoring Opportunity

[0276] In the present disclosure, a method for configuring and transmitting low-power weather signal (e.g., LP-WUS) information to include a terminal identifier and additional information therefor when a low-power weather signal (e.g., LP-WUS) is transmitted may be described.

[0277] For example, in order to reduce power consumption through low-power weather signals (e.g., LP-WUS), it may be important to minimize situations in which terminals that the base station does not intend to wake up (false alarms) and to transmit reliable low-power weather signals (e.g., LP-WUS). Since the reliability of low-power weather signal (e.g., LP-WUS) transmission may vary depending on the length of the terminal identifier that must be included in the low-power weather signal (e.g., LP-WUS) when the radio resources to be used for the low-power weather signal (e.g., LP-WUS) are the same, it can be said that there is a trade-off relationship between false alarms and the reliability of low-power weather signal (e.g., LP-WUS) transmission.

[0278] Therefore, a method for balancing the performance of low-power weather signals (e.g., LP-WUS) and false alarms may be considered (e.g., balancing between improving the performance of low-power weather signals (e.g., LP-WUS) and reducing the probability of false alarms). To this end, the present disclosure describes a method for improving the reception performance of low-power weather signals (e.g., LP-WUS) messages and controlling false alarms to a certain level or less by limiting situations in which multiple terminal groups wake up simultaneously.

[0279] According to one embodiment of the present disclosure, a method may be provided for indicating an identifier of a terminal or an identifier of a group including the terminal via a low power weather signal (e.g., LP-WUS).

[0280] In the following disclosure, examples are given based on the NR system to explain the principles of the disclosure, but the proposed methods are not specifically limited to the transmission and reception form of NR unless otherwise specified. In addition, in the following disclosure, examples are given based on the characteristics and structure of a discontinuous reception (e.g., DRX) terminal to explain the principles of the disclosure, but the proposed methods are not specifically limited to the support of a discontinuous reception (e.g., DRX) terminal unless otherwise specified. Therefore, it is self-evident that the methods proposed in the present disclosure can be applied to all wireless communication transmission and reception structures and services as long as the principles of the disclosure are not violated even without a separate description.

[0281] The distinction between each method or option in the following description is intended for clarity and is not to be construed as necessarily requiring each method or option to be implemented independently. For example, while the methods / options described below may be implemented individually, at least some of them may be implemented in combination, provided they do not conflict with each other.

[0282] According to various embodiments of the present disclosure, the reception time of a low-power weather signal (e.g., LP-WUS) may be separately described in each of the proposed methods below or may be determined based on system information transmitted by the base station. For example, if a low-power weather signal (e.g., LP-WUS) can be received as 1-bit information in one unit (e.g., 1 slot or 1 symbol) through on / off keying, an offset value and a period on a system frame may simply be set, and if decrypted information is received through multiple on / off keyings for reliability, or if 2 or more bit information is received, based on this, a time period during which a terminal receives a low-power weather signal (e.g., LP-WUS) and a terminal ID for a low-power weather signal receiver (e.g., LP-WUR) for verification after receiving a low-power weather signal (e.g., LP-WUS) may be determined similarly to a paging early indication (e.g., PEI). For example, in this case, a terminal ID used for conventional paging reception may be reused.

[0283] According to one embodiment of the present disclosure, a method may be considered in which a terminal derives a reception location of a low-power weather signal (e.g., LP-WUS) through a terminal ID given to the terminal for receiving a low-power weather signal (e.g., LP-WUS). For example, the low-power weather signal (e.g., LP-WUS) may be repeated in short cycles, and a base station may provide the terminal with the number of low-power weather signal (e.g., LP-WUS) subgroup parameters. This means the number of low-power weather signal monitoring periods (e.g., LP-WUS MO) required for one terminal subgroup, and in other words, the low-power weather signal (e.g., LP-WUS) for one terminal subgroup may be repeated at each low-power weather signal monitoring period (e.g., LP-WUS MO).

[0284] For example, a terminal can distinguish a low-power weather signal monitoring period (e.g., LP-WUS MO) to be monitored among a number of monitoring periods (e.g., MO) corresponding to the number of low-power weather signal (e.g., LP-WUS) subgroups through a terminal ID given to the terminal. In addition, for example, when K (K>2) bits of information are received through the monitoring of the low-power weather signal (e.g., LP-WUS), the reception of the low-power weather signal (e.g., LP-WUS) can also be distinguished through the terminal ID.

[0285] In various embodiments of the present disclosure, a low-power weather signal occasion (e.g., LP-WUS occasion; LO) may include one or more low-power weather signal (e.g., LP-WUS) monitoring occasions (e.g., monitoring occasions; MO). In other words, one low-power weather signal monitoring occasion (e.g., LP-WUS MO) may be replaced by one low-power weather signal occasion (e.g., LO), or a group of low-power weather signal monitoring occasions (e.g., LP-WUS MO) consisting of one or more low-power weather signal monitoring occasions (e.g., LP-WUS MO) may be replaced by a low-power weather signal occasion (e.g., LO). For example, this may be useful for improving reception performance by associating each low-power weather signal monitoring occasion (e.g., LP-WUS MO) within a low-power weather signal occasion (e.g., LO) with a beam or reference signal given from a base station or defined in advance, and ensuring that the same information is always transmitted in the low-power weather signal monitoring occasion (e.g., LP-WUS MO) within the low-power weather signal occasion (e.g., LO), thereby allowing the terminal to select and receive the best low-power weather signal monitoring occasion (e.g., LP-WUS MO) from the reference signal, or by combining signals received in each low-power weather signal monitoring occasion (e.g., LP-WUS MO).

[0286] For example, the number of low-power weather signal monitoring periods (e.g., LP-WUS MO) within a low-power weather signal period (e.g., LO) may be directly set via a message such as a SIB from a base station, or may be derived from the number of transmissions per cycle of a reference signal or the like that may be associated with each low-power weather signal monitoring period (e.g., LMO).

[0287] Alternatively, for example, without an explicit correlation, the terminal may simply assume that each low-power weather signal monitoring occasion (e.g., LP-WUS MO) is a separate transmission. In the sequence of operations described above, the terminal may assume that the same information is provided through the low-power weather signal monitoring occasion (e.g., LP-WUS MO) within the low-power weather signal occasion (e.g., LO). For example, the following may additionally be considered in the low-power weather signal occasion (e.g., LO):

[0288] For example, in a given low-power weather signal period (e.g., LO), the terminal may perform all monitoring in the monitoring period (e.g., MO) within the low-power weather signal period (e.g., LO), or may perform monitoring only in a specific monitoring period (e.g., MO).

[0289] For example, the number of low-power weather signal monitoring periods (e.g., LP-WUS MO) within a low-power weather signal period (e.g., LO) may be different from the number of associated beams or reference signals. This may be due to the capacity of the low-power weather signal monitoring period (e.g., LP-WUS MO). In such cases, the terminal may consider the following cases.

[0290] (1) If the number X of low-power weather signal monitoring periods (e.g., LP-WUS MO) within a low-power weather signal period (e.g., LO) is greater than the number Y of associated beams or reference signals, the n-th low-power weather signal monitoring period (e.g., LP-WUS MO) can be assumed to be associated with the ((n-1) mod Y + 1)-th beam or transmitted reference signal.

[0291] (2) If the number X of low-power weather signal monitoring periods (e.g., LP-WUS MO) within a low-power weather signal period (e.g., LO) is less than the number Y of associated beams or reference signals,

[0292] 1) The first low-power weather signal monitoring occasion (e.g., LP-WUS MO) may be associated with the beam or reference signal of the 'number mod Y'th SFN containing the low-power weather signal monitoring occasion (e.g., LP-WUS MO). The nth low-power weather signal monitoring occasion (e.g., LP-WUS MO) may be associated with the ((m+n-1) mod Y + 1)th beam or reference signal, if the first low-power weather signal monitoring occasion (e.g., LP-WUS MO) is associated with the mth beam or reference signal.

[0293] 2) Alternatively, for example, the nth weather signal monitoring period (e.g., LP-WUS MO) may be associated with the nth beam or reference signal that has been set. For example, an ordered index may be set to the beam or reference signal for this purpose.

[0294] 3) Alternatively, for example, the first weather signal monitoring occasion (e.g., LP-WUS MO) may be associated with the beam or reference signal closest to the start time of the current low-power weather signal occasion (e.g., LO). The n-th weather signal monitoring occasion (e.g., LP-WUS MO) may be associated with a beam or reference signal transmitted before the beam or reference signal associated with the n-1-th low-power weather signal occasion (e.g., LO).

[0295] [Method #1]

[0296] According to one embodiment of the present disclosure, a low power weather signal (e.g., LP-WUS) message may be provided that is segmented into multiple parts.

[0297] For example, when multiple terminal groups receive a low-power weather signal (e.g., LP-WUS) at a specific low-power weather signal time period (e.g., LO), multiple terminal group identifiers may be transmitted at a single low-power weather signal time period (e.g., LO). In this case, the following two methods may be broadly used to transmit the terminal group identifiers.

[0298] (1) For example, a low-power wake-up signal (e.g., LP-WUS) message may include a bitmap in which each bit position is associated with one or more terminal groups, and wake-up of the corresponding terminal groups may be indicated through the value of the corresponding bit position. For example, a terminal group identifier bitmap may be transmitted via the low-power wake-up signal (e.g., LP-WUS). For example, if the bitmap is '1010', since the first and third bit values ​​are '1', one or more terminal groups associated with the corresponding bits may wake up (or receive the low-power wake-up signal (e.g., LP-WUS)).

[0299] (2) Alternatively, for example, the bit representation (or value) of a low-power wake-up signal (e.g., LP-WUS) message may indicate one or more specific terminal group identifiers. For example, the low-power wake-up signal (e.g., LP-WUS) may transmit a terminal group identification code point indicating one or more terminal group identifiers. For example, multiple such code points may be transmitted and used to indicate multiple terminal group identifiers.

[0300] In this way, the terminal group identifier bitmap or terminal group identification code point may be transmitted to indicate a terminal or terminal group to wake up via a low-power wake-up signal (e.g., LP-WUS) message. For example, the low-power wake-up signal (e.g., LP-WUS) message may be composed of multiple parts, each of which may include the terminal group identifier bitmap or terminal group identification code point. For example, the low-power wake-up signal (e.g., LP-WUS) message may be composed of one or more of the terminal group identifier bitmaps and / or terminal group identification code points. For convenience of explanation, the terminal group identifier bitmap is described as an identifier bitmap, and the terminal group identifier code point is described as an identifier code point hereinafter.

[0301] For example, the configuration of a low-power weather signal (e.g., LP-WUS) message may be preset in advance or may be directly set through a message such as a system information block (e.g., SIB) of a base station. For example, the length and number of identifier bitmaps and / or the length and number of identifier code points in a low-power weather signal (e.g., LP-WUS) message may be preset in advance or may be directly set through a message such as a system information block (e.g., SIB) of a base station.

[0302] For example, if a low-power weather signal (e.g., LP-WUS) message contains two different parts, namely, an identifier bitmap and an identifier code point, the terminal groups to be used for each part can be pre-configured or predetermined. For example, a set of terminal groups A can be indicated based on the identifier bitmap, and a set of terminal groups B can be indicated based on the identifier code point.

[0303] As a more concrete example, in paging operations, UE subgroups determined based on terminal identifiers (e.g., UE-ID) may be indicated based on identifier bitmaps, and pre-configured UE subgroups (CN-based UE subgroups) based on core network (e.g., CN) messages may be indicated based on identifier code points.

[0304] [Method #1-1]

[0305] According to one embodiment of the present disclosure, a low power weather signal (e.g., LP-WUS) message may be provided that is segmented into multiple parts at different low power weather signal monitoring periods (e.g., LMO).

[0306] As previously explained, a single low-power weather signal period (e.g., LO) may be composed of multiple low-power weather signal monitoring periods (e.g., LMO). In such a case, multiple low-power weather signal monitoring periods (e.g., LMO) may be utilized to transmit multiple terminal group identifiers within a single low-power weather signal period (e.g., LO).

[0307] For example, in one low-power weather signal period (e.g., LO), terminal groups A and B may be indicated via identifier bitmaps in the first (e.g., earliest) low-power weather signal monitoring period (e.g., LMO), and terminal groups C and D may be indicated via identifier code points in the second (e.g., second-earliest) low-power weather signal monitoring period (e.g., LMO). Through this, various terminal groups may be efficiently identified and indicated in one low-power weather signal period (e.g., LO).

[0308] Additionally, for example, the same code point configuration can be used to indicate multiple terminal group identifiers by transmitting it multiple times during two or more low-power weather signal monitoring periods (e.g., LMO). For example, a 2-bit code point representing four terminal groups can be transmitted multiple times to indicate two or more terminal groups.

[0309] More specifically, for example, if code point '01' can indicate terminal group A, code point '10' can indicate terminal group B, code point '11' can indicate terminal group C, and code point '00' can indicate terminal group D, then in order to wake up groups A and B, a group of low-power weather signal monitoring occasions (eg, LMO) including two or more low-power weather signal monitoring occasions (eg, LMO) within a low-power weather signal period (eg, LO) is configured, and code point '01' can be indicated in the first low-power weather signal monitoring occasion (eg, LMO), and code point '11' can be indicated in the second low-power weather signal monitoring occasion (eg, LMO).

[0310] For example, if a low-power weather signal (e.g., LP-WUS) message transmitted in one low-power weather signal period (e.g., LO) is composed of multiple parts, and at least one part may be the terminal group identifier bitmap or terminal group identification code point, some parts within the low-power weather signal (e.g., LP-WUS) message may be transmitted separately in different low-power weather signal monitoring periods (e.g., LMO) within the low-power weather signal period (e.g., LO). For example, certain parts of the low-power weather signal (e.g., LP-WUS) message may be transmitted in a redundant manner in different low-power weather signal monitoring periods (e.g., LMO) within the low-power weather signal period (e.g., LO).

[0311] For example, in a case where multiple low-power weather signal monitoring periods (e.g., LMO) are utilized to transmit multiple terminal group identifiers in one low-power weather signal period (e.g., LO), the configuration of multiple low-power weather signal monitoring periods (e.g., LMO) considering multiple beams or reference signals may be replaced (or substituted) by the configuration of each low-power weather signal monitoring period (e.g., LMO) group, or may be repeated as many times as the number of elements in the low-power weather signal monitoring period (e.g., LMO) group.

[0312] More specifically, in the above example where a low-power weather signal monitoring occasion (eg, LMO) group is configured with two low-power weather signal monitoring occasions (eg, LMO) for two code point transmissions, when transmissions are performed considering four reference signals, instead of configuring four low-power weather signal monitoring occasion (eg, LMO) transmissions for each reference signal, a group of four low-power weather signal monitoring occasions (eg, LMO) may be transmitted (for example, a method of first transmitting one low-power weather signal monitoring occasion (eg, LMO) group, here two low-power weather signal monitoring occasions (eg, LMO), for the same reference signal and then repeating this for the other reference signal), or four low-power weather signal monitoring occasion (eg, LMO) transmissions may be configured for each reference signal for each element within the low-power weather signal monitoring occasion (eg, LMO) group. (For example, the first (e.g., earliest) low-power weather signal monitoring occasion (e.g., LMO) within a group of low-power weather signal monitoring occasions (e.g., LMO) may be repeated for each reference signal, and then the next (e.g., second earliest) low-power weather signal monitoring occasion (e.g., LMO) within the group of low-power weather signal monitoring occasions (e.g., LMO) may be repeated for the next low-power weather signal monitoring occasion (e.g., LMO).

[0313] [Method #2]

[0314] According to one embodiment of the present disclosure, a more detailed example of applying multiple code points within a low power weather signal (e.g., LP-WUS) message may be provided.

[0315] For example, if a low-power weather signal (e.g., LP-WUS) message contains multiple identifier code points, the base station can indicate the weather for multiple terminal groups through each code point. For example, if there are four terminal groups in total and each code point is 2 bits long, the values ​​of the code points can be mapped to the terminal groups as follows.

[0316] For example, as described above, the base station may transmit two or more code points to the terminals in one low-power weather signal monitoring period (e.g., LMO) or in multiple low-power weather signal monitoring periods (e.g., LMO) to indicate two or more terminal groups among the entire terminal group.

[0317] Table 7 below shows an example of the mapping between code point values ​​and terminal groups.

[0318] Code Point Value Mapped Terminal Group Index 00 Terminal Group 001 Terminal Group 110 Terminal Group 211 Terminal Group 3

[0319] For example, if the number of terminal groups for which a base station wishes to indicate weather exceeds the number of identifier code points configured in a low-power weather signal (e.g., LP-WUS) message, it may be difficult to express this with the given identifier code points. To address this, mapping more than one terminal group to each code point may be considered.

[0320] For example, a specific code point value can be mapped to an entire terminal group, as shown in Table 8 below. For example, such a mapping scheme may be applied only to some (e.g., the first (or earliest) or last) identifier code points when multiple identifier code points are configured in a low-power weather signal (e.g., LP-WUS) message. This may be because, when an entire terminal group is mapped, it is not necessary for all identifier code points to receive it.

[0321] Table 8 below shows an example of the mapping between code point values ​​and terminal groups.

[0322] Code Point Value Mapped Terminal Group Index 00 Terminal Group 001 Terminal Group 110 Terminal Group 211 All Terminal Groups

[0323] For example, as shown in Table 9 below, specific code point values ​​can be mapped to entire terminal groups, and additionally, code point values ​​mapped to two or more terminal groups can be provided. This method allows complex situations where weather signals for two or more terminal groups are transmitted through a single code point space to be handled.

[0324] Table 9 below shows an example of the mapping between code point values ​​and terminal groups.

[0325] Code Point Value Mapped Terminal Group Index 000 Terminal Group 0001 Terminal Group 1010 Terminal Group 2011 Terminal Group 3100 Terminal Groups 0 and 1101 Terminal Groups 1 and 2110 Terminal Groups 2 and 3111 All Terminal Groups

[0326] Alternatively, it may be explicitly indicated that a low-power wake-up signal (e.g., LP-WUS) is not transmitted, for example, due to the transmission of a low-power synchronization signal (e.g., LP-SS). In such cases, an explicit code point value indicating that no terminal group is indicated may be mapped.

[0327] Table 10 below shows an example of the mapping between code point values ​​and terminal groups.

[0328] Code Point Value Mapped Terminal Group Index 000 Terminal Group 0001 Terminal Group 1010 Terminal Group 2011 Terminal Group 3100 Terminal Groups 0 and 1101 Terminal Groups 2 and 3110 No terminal group indicated 111 All terminal groups

[0329] For example, pairs of code point values ​​and terminal groups can be predefined. Alternatively, pairs or tables of code point values ​​and terminal groups can be configured, for example, through higher layer signaling of a base station.

[0330] Alternatively, for example, for code point values ​​that are not predefined for a single terminal group, an entire terminal group, or a designated terminal group, the base station can set up terminal groups to which it will map or additional terminal actions for the remaining code point values.

[0331] For example, if a code point space of N bits and M terminal groups are used, the first M of the 2N code points can be mapped to a single terminal group in terminal group index order, and the base station can configure only the remaining code point portion.

[0332] For example, if a low power weather signal (e.g., LP-WUS) configuration includes two or more identifier code points, two or more different terminal groups may be mapped to each identifier code point, as follows:

[0333] Tables 11 and 12 below provide examples of mappings between code point values ​​and terminal groups.

[0334] First code point value mapped terminal group index Second code point value mapped terminal group index 00 Terminal group 000 Terminal group 301 Terminal group 101 Terminal group 410 Terminal group 210 Terminal group 511 Terminal groups 0, 1, and 211 Terminal groups 3, 4, and 5

[0335] First code point value mapped terminal group index Second code point value mapped terminal group index 000 terminal group 0000 terminal group 0001 terminal group 1001 terminal group 1010 terminal group 2010 terminal group 2011 terminal group 3011 terminal group 3100 terminal group 4100 terminal group 4101 terminal group 5101 terminal group 5110 terminal group 6110 terminal group 6111 terminal groups 0, 1, 2, and 3111 terminal groups 4, 5, and 6

[0336] In addition to mapping a code point-specific value to an entire terminal group or two or more terminal groups, the base station can also map a separate additional terminal action to instruct the terminal to perform that action. This may include the following information:

[0337] - Weather for all received terminals

[0338] - Terminal operation that stops monitoring low-power weather signals (e.g., LP-WUS) and falls back to conventional paging monitoring operation (e.g., paging operation based on discontinuous reception).

[0339] - Instructions to change system information (e.g., SI)

[0340] - Instructions for receiving ETWS / CMAS information

[0341] - In addition, some information that can be conveyed via short messages that can be transmitted on a base station-to-terminal control channel (e.g., PDCCH) using P-RNTI, as described in standard documents in related technical fields. For example, for a terminal in an RRC connection state, an operation instruction to change the base station-to-terminal control channel (e.g., PDCCH) monitoring target, such as search space set switching.

[0342] For example, the terminals receiving the above information may be limited to specific terminals among terminals receiving low-power weather signals (e.g., LP-WUS). For example, the specific terminals may be terminals with terminal capabilities for receiving additional information, or terminals belonging to a terminal group predefined or configured to receive additional terminal operations.

[0343] Alternatively, for example, the same terminal action may be mapped to two or more code point values, and a group of terminals to receive each code point value (or its associated monitoring period) may be predefined or configured. Through this operation, the base station can instruct only a specific group of terminals to perform the operation.

[0344] More specifically, for example, two code point values ​​may be configured to instruct to perform a change in system information (e.g., SI) or reception of ETWS / CMAS information, and the first code point may be configured to instruct all terminals to perform this, and the second code point may be configured to instruct only terminals using eDRX to perform this, or two code point values ​​may be configured to instruct to stop a low-power wake-up signal (e.g., LP-WUS) monitoring operation and return to a conventional paging monitoring operation (e.g., discontinuous reception-based paging operation), and the first code point may be configured to instruct a terminal with a long wake-up delay to receive and apply this, and the second code point may be configured to instruct a terminal with a short wake-up delay to receive and apply this.

[0345] For example, as described above, the factors used to distinguish a particular terminal group may vary. For example, at least one of the following may be considered:

[0346] - Whether to use eDRX

[0347] - Time or wake-up delay between receiving a low-power wake-up signal (e.g., LP-WUS) and receiving a paging occasion (e.g., paging occasion).

[0348] - Terminal capabilities required to receive additional information

[0349] For example, if two or more identifier code points are included in a low-power weather signal (e.g., LP-WUS) configuration, separate terminal actions (or additional information) can be instructed to the terminal by combining information from two or more different identifier code points as follows.

[0350] More specifically, for example, if the same indication as indicated to the terminal by a previous identifier code point is indicated by a subsequent identifier code point, the terminal may assume that a different indication or another additional terminal action (or additional information) is indicated rather than the same indication. For example, if two or more identifier code points are indicated to the terminal, different value-indication pairs may be applied to the subsequent identifier code point depending on the value indicated by the previous identifier code point.

[0351] Table 13 below shows examples where additional information is indicated based on identical code point values.

[0352] First code point value mapped terminal group index Second code point value mapped terminal group index 00 Terminal group 000 Terminal group 0 or if terminal group 0 is indicated in the first code point value, all terminal groups 01 Terminal group 101 Terminal group 1 or if terminal group 1 is indicated in the first code point value, fallback to legacy paging behavior 10 Terminal group 210 Terminal group 2 or if terminal group 2 is indicated in the first code point value, change system information (e.g., SI) 11 Terminal group 311 Terminal group 3 or if terminal group 3 is indicated in the first code point value, ETWS / CMAS indication

[0353] For example, if more than one identifier code point is included in a low power weather signal (e.g., LP-WUS) configuration, and in particular, if each code point cannot be transmitted selectively (e.g., more than one code point is transmitted in one low power weather signal monitoring period (e.g., LMO)), the base station may consider indicating the same terminal group in each code point to indicate a single terminal group.

[0354] For example, if two code points are transmitted and a single terminal group 2 is mapped to the code point value '010', both the first code point and the second code point may indicate '010'. If at least one identifier code point indicates a code point that is mapped to the entire terminal group, the values ​​of the other identifier code points may be ignored. Conversely, if an identifier code point indicates a code point value that does not indicate any terminal group or terminal operation, only that identifier code point may be ignored.

[0355] Meanwhile, if two or more identifier code points are included in the configuration of a low-power weather signal (e.g., LP-WUS), and especially if each code point cannot be transmitted selectively (e.g., when transmitting two or more code points in one low-power weather signal monitoring period (e.g., LMO)), additional terminal actions (or additional information) may be indicated by combining code point information, and in this case, it may be difficult for a base station to use the above method to indicate a single terminal group.

[0356] In such cases, a method may be used in which the first identifier code point includes a code point value indicating the entire terminal group, as shown in Table 13, and the second and subsequent identifier code points include a code point value indicating no terminal group instead of a code point indicating the entire terminal group.

[0357] This may be an example of placing code points indicating the entire terminal group and code point values ​​indicating no terminal group in different identifier code point portions.

[0358] For example, depending on the need for a way to indicate an entire terminal group, the code point value indicating the entire terminal group of the first identifier code point may be omitted or placed in an identifier code point other than the first. In this example, to indicate a single terminal group, the base station may indicate the terminal group to be indicated in the first identifier code point, and may indicate a code point value indicating no terminal group in the second identifier code point.

[0359] Table 14 below shows examples where additional information is indicated based on identical code point values.

[0360] First code point value mapped terminal group index Second code point value mapped terminal group index 000 Terminal group 0000 Terminal group 0001 Terminal group 1001 Terminal group 1 If terminal group 1 is indicated in the first code point value, fallback to legacy paging behavior 010 Terminal group 2010 Terminal group 2 If terminal group 2 is indicated in the first code point value, change system information (e.g., SI) 011 Terminal group 3011 Terminal group 3 If terminal group 3 is indicated in the first code point value, ETWS / CMAS indication 100 Terminal group 4100 Terminal group 4101 Terminal group 5101 Terminal group 5110 Terminal group 6110 Terminal group 6111 All terminal groups 111 No terminal group indicated

[0361] [Method #2-1]

[0362] According to one embodiment of the present disclosure, value-indicator pairs from a big mother table may be provided.

[0363] For example, methods for transmitting information to a terminal in the IDLE / INACTIVE state may be limited. In particular, the amount of information that can be transmitted to the terminal in advance, for example, through non-access layer (e.g., NAS) signaling or system information block (e.g., SIB) transmission, is limited, and it may be difficult to transmit cell-specific information.

[0364] Therefore, in receiving a low-power weather signal (e.g., LP-WUS) message, a method of defining information that can be transmitted in a low-power weather signal (e.g., LP-WUS) message in advance and selectively using the predefined information through additional information provided through a system information block (e.g., SIB) may be considered.

[0365] For example, a large table containing value-indication pairs that can be used by a low-power weather signal (e.g., LP-WUS) message consisting of two or more identifier code points could be predefined, and a portion of that table could be used depending on the number of given terminal groups (or terminal sub-groups). For example, the following table could be considered.

[0366] Table 15 below shows examples where additional information is indicated based on identical code point values.

[0367] First code point value mapped terminal group index Second code point value mapped terminal group index 0000 Terminal group 00000 No terminal group indicated 0001 Terminal group 10001 Terminal group 1 If the first code point value indicates terminal group 1, all terminal groups 0010 Terminal group 20010 Terminal group 20011 Terminal group 30011 Terminal group 30100 Terminal group 40100 Terminal group 40101 Terminal group 50101 Terminal group 50110 Terminal group 60110 Terminal group 60111 Terminal group 70111 Terminal group 71000 Terminal group 81000 Terminal group 81001 Terminal group 91001 Terminal group 91010 Terminal group 101010 Terminal group 101011 terminal group 111011 terminal group 111100 terminal group 121100 terminal group 121101 terminal group 131101 terminal group 131110 terminal group 141110 terminal group 141111 terminal group 151111 terminal group 15

[0368] For example, such a table could be one with the following characteristics:

[0369] For example, in the above table, each code point value of the first identifier code point may sequentially correspond to an index of a terminal group.

[0370] For example, in the above table, at least one code point value of the second identifier code point may indicate "no terminal group is indicated".

[0371] For example, to indicate a single terminal group, a base station may indicate the index of that terminal group as the first code point identifier and indicate "no terminal group indicated" as the second code point identifier.

[0372] Here, in this example, the first code point value is mapped to "no terminal group indicated." This may be to ensure that the indication is included even when only the second row is used (e.g., two terminal groups), depending on the number of terminal groups.

[0373] For example, in the above table, special instructions can be set for certain code point combinations.

[0374] In the example, if the first code point value is '1' and the second code point value is also '1', all terminal groups can be indicated. This may be to ensure that a method of indicating all terminals is always included, even when only the second row is used (e.g., two terminal groups), depending on the number of terminal groups.

[0375] Here, instructions that can be mapped to a specific code point combination may include three or more terminal groups or additional terminal operations described in Proposal Method 2.

[0376] Here, the code point values ​​that can be used for a particular code point combination can be at least one of the following:

[0377] - If the first code point identifier and the second code point identifier indicate the same value.

[0378] For example, this may be because if at least one code point value of the second identifier code point indicates "no terminal group indicated", then the two values ​​need not be transmitted identically except that the second code point indicates "no terminal group indicated".

[0379] - If the value of the second code point identifier is less than the value of the first code point identifier.

[0380] For example, this may be because, in the opposite case, it may be indicated by a different code point combination. For example, in this case, it may be assumed that there is no separate indication for a combination where the value of the second code point identifier is greater than the value of the first code point identifier.

[0381] For example, if terminal group 2 can be indicated by '010' in the first code point and terminal group 3 can be indicated by '011' in the second code point, then separate indications can be mapped because the cases where '011' is indicated in the first code point and '010' is indicated in the second code point are redundant.

[0382] - Conversely, the case where the value of the second code point identifier is greater than the value of the first code point identifier can also be considered. In this case, it can be assumed that there is no separate indication due to the combination of code points in the opposite case (i.e., the value of the second code point identifier is less than the value of the first code point identifier).

[0383] For example, in the above table, if no special conditions are set for a particular code point combination, the base station may freely use two code points to indicate two different terminal groups.

[0384] Here, for example, it may be possible to designate a single terminal group by designating the same terminal group for each code point.

[0385] According to one embodiment of the present disclosure, a terminal may use only a portion of the table, taking into account the table and the number of configured terminal groups. More specifically, for example, if the total size of the configured terminal groups is N, the table may be referenced through information of ceil(Log2N) bits per code point identifier.

[0386] At this time, for example, only the ceil( Log2(N) ) LSB of the described code point value can be used as the code point value. For example, up to the upper N rows, or (ceil( Log2(N) )) depending on the number N of configured terminal groups. 2 The table up to the row can be used to receive low power weather signals (e.g., LP-WUS).

[0387] Below are examples of code point value-indication pair tables for cases where eight, four, and two terminal groups are configured, respectively. This allows terminals to determine the code point value-indication pairs to be used for low-power weather signal (e.g., LP-WUS) reception through a predefined table based solely on the number of terminal groups, without requiring separate signaling for the code point value-indication pairs.

[0388] Tables 16 through 18 below show examples where additional information is indicated based on identical code point values.

[0389] First code point value mapped terminal group index Second code point value mapped terminal group index 000 Terminal group 0000 No terminal group indicated 001 Terminal group 1001 Terminal group 1 If the first code point value indicates terminal group 1, all terminal groups 010 Terminal group 2010 Terminal group 2011 Terminal group 3011 Terminal group 3100 Terminal group 4100 Terminal group 4101 Terminal group 5101 Terminal group 5110 Terminal group 6110 Terminal group 6111 Terminal group 7111 Terminal group 7

[0390] First code point value mapped terminal group index Second code point value mapped terminal group index 00 Terminal group 000 No terminal group indicated 01 Terminal group 101 Terminal group 1 If the first code point value indicates terminal group 1, all terminal groups 10 Terminal group 210 Terminal group 211 Terminal group 311 Terminal group 3

[0391] First code point value mapped terminal group index Second code point value mapped terminal group index 0 Terminal group 00 No terminal group indicated 1 Terminal group 11 Terminal group 1 If the first code point value indicates terminal group 1, all terminal groups

[0392] FIG. 12 illustrates a procedure for transmitting a low-power weather signal including information related to a bitmap containing multiple code point values, according to an embodiment of the present disclosure. The embodiment of FIG. 12 may be combined with various embodiments of the present disclosure, and descriptions, functions, procedures, proposals, methods, and / or operations of the embodiments may be omitted.

[0393] Referring to FIG. 12, a first device and a second device are shown performing a paging operation based on a low-power weather signal. For example, the first device may be a terminal, and the second device may be a base station.

[0394] In step S1210, the second device may transmit a low-power wake-up signal to the first device. For example, the low-power wake-up signal may include information related to a bitmap including code point values, as described in the present disclosure.

[0395] For example, the bitmap may be composed of a first code point value and a second code point value, and in this example, the first code point value may be referred to as aaa (each bit value may be different), and the second code point value may be referred to as bbb (each bit value may be different). For example, the bitmap may be aaabbb.

[0396] For example, the first code point value may be a 3-bit value and have a value of 000 to 111, and the second code point value may also be a 3-bit value and have a value of 000 to 111.

[0397] In step S1220, the first device receiving the low-power weather signal can obtain information based on the low-power weather signal. For example, the information may include the first code point value and the second code point value. For example, each code point value may indicate the index of a terminal group that should receive a paging message at a paging opportunity based on the low-power weather signal.

[0398] Additionally, if the first code point value and the second code point value are the same, the acquired information may include additional information (or additional terminal operation). This may be according to various embodiments of the present disclosure.

[0399] In step S1230, if it is confirmed that the first device is included in a terminal group indicated by the first code point value or the second code point value, the first device can receive a paging message from the second device at a paging opportunity.

[0400] Through this embodiment, the amount of information that can be transmitted through a limited number of bits can be increased, thereby preventing waste of wireless resources and enabling more efficient wireless communication.

[0401] FIG. 13 illustrates a procedure for a first device to receive a paging message based on a low-power weather signal over time, according to an embodiment of the present disclosure. The embodiment of FIG. 13 may be combined with various embodiments of the present disclosure, and the descriptions, functions, procedures, proposals, methods, and / or procedures of the embodiments may be omitted.

[0402] Referring to FIG. 13, from the perspective of a first device, which is a terminal for receiving a low-power weather signal, code point values ​​of a low-power weather signal received in time sequence are shown. First, the first device can obtain a first code point value (via bitmap information included in the low-power weather signal) at a first low-power weather signal monitoring period. Thereafter, the second device can obtain a second code point value (via bitmap information included in the low-power weather signal) at a second low-power weather signal monitoring period that is different from the first low-power weather signal monitoring period.

[0403] In this example, the first code point value may be referred to as aaa (each bit value may be different), and the second code point value may be referred to as bbb (each bit value may be different).

[0404] For example, at this time, the first device can obtain information based on the first code point value and the second code point value. For example, each code point value can indicate the index of a terminal group that should receive a paging message at a paging opportunity based on the low-power weather signal.

[0405] Additionally, if the first code point value and the second code point value are the same, the acquired information may include additional information (or additional terminal operation). This may be according to various embodiments of the present disclosure.

[0406] Thereafter, if it is confirmed that the first device is included in a terminal group indicated by, for example, the first code point value or the second code point value, the first device can receive a paging message from the second device at a paging opportunity.

[0407] Through this embodiment, the amount of information that can be transmitted through a limited number of bits can be increased, thereby preventing waste of wireless resources and enabling more efficient wireless communication.

[0408] [Method #3]

[0409] According to one embodiment of the present disclosure, a detailed application example of multiple segments within a low power weather signal (e.g., LP-WUS) message may be provided.

[0410] For example, if a single low-power wake-up signal (e.g., LP-WUS) message corresponds to multiple paging occasions (e.g., paging occasions), the total amount of information may increase in proportion to the number of paging occasions (e.g., paging occasions), because the low-power wake-up signal (e.g., LP-WUS) message must include information about the terminal group that may attempt to receive it in each paging occasion (e.g., paging occasion).

[0411] To address these issues, it may be considered to add to the low-power wake-up signal (e.g., LP-WUS) message not only one or more identifier code points and / or identifier bitmaps, but also additional information that may be needed to interpret the information, for example, a part indicating the paging occasion (e.g., paging occasion) to which the given terminal identifier applies. More specifically, the following methods may be considered:

[0412] According to one embodiment of the present disclosure, a low power wake-up signal (e.g., LP-WUS) message may be composed of a paging occasion bitmap portion and a terminal identifier portion.

[0413] For example, the paging occasion (e.g., paging occasion) bitmap sequentially corresponds to a paging occasion (e.g., paging occasion) that occurs in a low-power wake-up signal (e.g., LO) when a low-power wake-up signal (e.g., LP-WUS) message is transmitted, starting from the MSB, and may indicate a paging occasion (e.g., paging occasion) to which the terminal identifier is applied. For example, if the paging occasion (e.g., paging occasion) bitmap is '1101', the first, second, and fourth paging occasions (e.g., paging occasion) may be indicated as paging occasions (e.g., paging occasion) to which the terminal identifier is applied.

[0414] According to one embodiment of the present disclosure, a low-power weather signal (e.g., LP-WUS) message may be composed of a paging occasion (e.g., paging occasion) code point portion and a terminal identifier portion.

[0415] For example, the paging occasion (e.g., paging occasion) code point can sequentially list the paging occasions (e.g., paging occasions) that occur in the low-power wake-up signal (e.g., LO) when the low-power wake-up signal (e.g., LP-WUS) message is transmitted, and then use the order as a paging occasion (e.g., paging occasion) index to indicate the paging occasion (e.g., paging occasion) to which the terminal identifier given together will apply. For example, if the paging occasion (e.g., paging occasion) index is '3', the third paging occasion (e.g., paging occasion) can be indicated as the paging occasion (e.g., paging occasion) to which the terminal identifier will apply.

[0416] According to one embodiment of the present disclosure, the method described in the proposed method 1 or 2 or a similar method may be used to configure / generate / interpret the terminal identifier portion.

[0417] According to one embodiment of the present disclosure, when a paging occasion (e.g., paging occasion) bitmap or a paging occasion (e.g., paging occasion) code point is configured, a reduction of the terminal identifier portion may be considered to reduce the overall low-power wake-up signal (e.g., LP-WUS) message size below a certain level. For example, two or more terminal groups may be mapped to a single bit or code point value.

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

[0419] In a second aspect of the present disclosure, a terminal for use 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 configured, when executed, to cause the at least one processor to perform an 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 configured, when executed, to cause the at least one processor to perform an operation proposed in the present disclosure.

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

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

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

[0424] Here, the operations proposed in the present disclosure may be described separately for convenience, but unless specifically stated otherwise, the operations may be combined with each other.

[0425] In various embodiments of the present disclosure, a low-power wake-up signal (e.g., LP-WUS) is a signal that a terminal can monitor at low power when it is basically not monitoring paging (idle state), and may include an instruction to perform paging after a specific time interval from the time of receiving the signal. For example, for efficient operation of a low-power wake-up signal (e.g., LP-WUS), it may be important to secure coverage while minimizing situations where a terminal that the base station does not want to wake up occurs (false alarm), and to transmit a reliable low-power wake-up signal (e.g., LP-WUS).

[0426] For example, as the length of the terminal identifier included in a low-power weather signal (e.g., LP-WUS) increases, the number of false alarms in which terminals that the base station does not intend to wake up are woken up may decrease, but transmission reliability may decrease. Considering this trade-off relationship, a method that can effectively control the two performance indicators may be required.

[0427] According to one embodiment of the present disclosure, the MSB 3 bits and the LSB 3 bits of a bitmap included in a low-power wake-up signal (e.g., LP-WUS) can basically indicate a group of terminals to wake up. For example, if the MSB 3 bits and the LSB 3 bits are identical, the bitmap may additionally include information other than information related to the group of terminals to wake up.

[0428] According to another embodiment of the present disclosure, a single low-power weather signal (e.g., LP-WUS) transmission period (e.g., LO) may be composed of multiple monitoring units (e.g., LMO), and a low-power weather signal (e.g., LP-WUS) message may be divided into multiple parts and transmitted through different monitoring units (e.g., LMO). For example, different identification methods, such as terminal group identifier bitmaps or identifier codepoints, may be assigned to different low-power weather signal monitoring periods (e.g., LMO).

[0429] According to another embodiment of the present disclosure, a low-power weather signal (e.g., LP-WUS) message divided into several parts may be transmitted during a single low-power weather signal monitoring period (e.g., LMO). Here, for example, each part may be distinguished through the position of bits within the message.

[0430] According to various embodiments of the present disclosure, the signaling overhead of a low-power weather signal (e.g., LP-WUS) can be reduced by allowing an appropriate number of terminal groups to be indicated via the low-power weather signal (e.g., LP-WUS), and the signaling overhead of the low-power weather signal (e.g., LP-WUS) can be further reduced by allowing additional information to be transmitted without allocating additional bits.

[0431] FIG. 14 illustrates a procedure of a method that may be performed by a first device according to an embodiment of the present disclosure. The embodiment of FIG. 14 may be combined with various embodiments of the present disclosure, and descriptions, functions, procedures, proposals, methods, and / or operations of the practical examples may be omitted.

[0432] Referring to FIG. 14, in step S1410, the first device can monitor a low-power weather signal transmitted from the second device. For example, the low-power weather signal includes bitmap information including a first code point value and a second code point value, wherein the first code point value is associated with a first device group, the second code point value is associated with a second device group, and based on the first code point value being identical to the second code point value, the bitmap information can include additional information. In step S1420, the first device can perform paging at a paging opportunity based on whether the first device is included in the first device group or the second device group.

[0433] For example, the bitmap information may be 6-bit information, the first code point value may be 3-bit information, and the second code point value may be 3-bit information.

[0434] For example, based on the first code point value being 111, the first device group may include all device groups.

[0435] For example, the additional information may include information related to fallback to discontinuous reception based paging operation.

[0436] For example, the additional information may include information related to changes in system information.

[0437] For example, the additional information may include information related to an earthquake and tsunami warning system (ETWS) or a commercial mobile alert system (CMAS).

[0438] For example, the additional information may include weather-related information for all devices that received the low-power weather signal.

[0439] For example, the additional information may include information related to a change in a base station-to-terminal control channel monitoring target.

[0440] For example, the base station-to-terminal control channel monitoring target may include a set of search spaces.

[0441] For example, based on the first code point value and the second code point value being both 001, the additional information may be information related to fallback to a discontinuous reception-based paging operation, based on the first code point value and the second code point value being both 010, the additional information may be information related to a change in system information, based on the first code point value and the second code point value being both 011, the additional information may be information related to ETWS or CMAS, and based on the first code point value and the second code point value being both 111, the additional information may be information related to no device group being indicated.

[0442] For example, the first code point value and the second code point value can be monitored separately.

[0443] For example, the first code point value may be monitored at a first low-power weather signal monitoring period, and the second code point value may be monitored at a second low-power weather signal monitoring period that is different from the first low-power weather signal monitoring period.

[0444] The above-described embodiment can be applied to various devices described below. First, the processor (102) of the first device (100) can monitor a low-power weather signal transmitted from the second device (200). For example, the low-power weather signal includes bitmap information including a first code point value and a second code point value, wherein the first code point value is associated with a first device group, the second code point value is associated with a second device group, and based on the first code point value being identical to the second code point value, the bitmap information can include additional information. In addition, the processor (102) of the first device (100) can perform paging at a paging opportunity based on whether the first device (100) is included in the first device group or the second device group.

[0445] According to one embodiment of the present disclosure, a first device may be provided. For example, the method may include: at least one transceiver; at least one processor; and at least one memory coupled to the at least one processor and storing instructions. For example, the instructions, based on execution by the at least one processor, may cause the first device to: monitor a low-power weather signal transmitted from a second device, wherein the low-power weather signal includes bitmap information including a first code point value and a second code point value, wherein the first code point value is associated with a first device group, the second code point value is associated with a second device group, and based on the first code point value being identical to the second code point value, the bitmap information includes additional information; and based on the first device being included in the first device group or the second device group, perform paging at a paging opportunity.

[0446] For example, the bitmap information may be 6-bit information, the first code point value may be 3-bit information, and the second code point value may be 3-bit information.

[0447] For example, based on the first code point value being 111, the first device group may include all device groups.

[0448] For example, the additional information may include information related to fallback to discontinuous reception based paging operation.

[0449] For example, the additional information may include information related to changes in system information.

[0450] For example, the additional information may include information related to an earthquake and tsunami warning system (ETWS) or a commercial mobile alert system (CMAS).

[0451] For example, the additional information may include weather-related information for all devices that received the low-power weather signal.

[0452] For example, the additional information may include information related to a change in a base station-to-terminal control channel monitoring target.

[0453] For example, the base station-to-terminal control channel monitoring target may include a set of search spaces.

[0454] For example, based on the first code point value and the second code point value being both 001, the additional information may be information related to fallback to a discontinuous reception-based paging operation, based on the first code point value and the second code point value being both 010, the additional information may be information related to a change in system information, based on the first code point value and the second code point value being both 011, the additional information may be information related to ETWS or CMAS, and based on the first code point value and the second code point value being both 111, the additional information may be information related to no device group being indicated.

[0455] For example, the first code point value and the second code point value can be monitored separately.

[0456] For example, the first code point value may be monitored at a first low-power weather signal monitoring period, and the second code point value may be monitored at a second low-power weather signal monitoring period that is different from the first low-power weather signal monitoring period.

[0457] 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 coupled to the at least one processor and storing instructions. For example, the instructions, based on execution by the at least one processor, may cause the first device to: monitor a low-power weather signal transmitted from a second device, wherein the low-power weather signal includes bitmap information including a first code point value and a second code point value, wherein the first code point value is associated with a first device group, the second code point value is associated with a second device group, and based on the first code point value being identical to the second code point value, the bitmap information includes additional information; and based on the first device being included in the first device group or the second device group, perform paging at a paging opportunity.

[0458] According to one embodiment of the present disclosure, a non-transitory computer-readable storage medium having instructions recorded thereon may be provided. For example, the instructions, when executed, may cause a first device to: monitor a low-power weather signal transmitted from a second device, wherein the low-power weather signal includes bitmap information including a first code point value and a second code point value, wherein the first code point value is associated with a first device group, the second code point value is associated with a second device group, and wherein the bitmap information includes additional information based on the first code point value being identical to the second code point value; and cause the first device to perform paging at a paging opportunity based on whether the first device is included in the first device group or the second device group.

[0459] FIG. 15 illustrates a procedure of a method that may be performed by a second device according to an embodiment of the present disclosure. The embodiment of FIG. 15 may be combined with various embodiments of the present disclosure, and descriptions, functions, procedures, proposals, methods, and / or operations of the practical examples may be omitted.

[0460] Referring to FIG. 15, in step S1510, the second device may generate bitmap information including a first code point value and a second code point value. For example, the first code point value is associated with a first device group, the second code point value is associated with a second device group, and based on the first code point value being identical to the second code point value, the bitmap information may include additional information. In step S1520, the second device may transmit a low-power wake-up signal including the bitmap information. In step S1530, the second device may transmit a paging message at a paging opportunity. For example, the paging message may be received by a first device included in the first device group or the second device group.

[0461] For example, the bitmap information may be 6-bit information, the first code point value may be 3-bit information, and the second code point value may be 3-bit information.

[0462] For example, based on the first code point value being 111, the first device group may include all device groups.

[0463] For example, the additional information may include information related to fallback to discontinuous reception based paging operation.

[0464] For example, the additional information may include information related to changes in system information.

[0465] For example, the additional information may include information related to an earthquake and tsunami warning system (ETWS) or a commercial mobile alert system (CMAS).

[0466] For example, the additional information may include weather-related information for all devices that received the low-power weather signal.

[0467] For example, the additional information may include information related to a change in a base station-to-terminal control channel monitoring target.

[0468] For example, the base station-to-terminal control channel monitoring target may include a set of search spaces.

[0469] For example, based on the first code point value and the second code point value being both 001, the additional information may be information related to fallback to a discontinuous reception-based paging operation, based on the first code point value and the second code point value being both 010, the additional information may be information related to a change in system information, based on the first code point value and the second code point value being both 011, the additional information may be information related to ETWS or CMAS, and based on the first code point value and the second code point value being both 111, the additional information may be information related to no device group being indicated.

[0470] For example, the first code point value and the second code point value may be transmitted separately.

[0471] For example, the first code point value may be transmitted at a first low-power weather signal monitoring period, and the second code point value may be transmitted at a second low-power weather signal monitoring period that is different from the first low-power weather signal monitoring period.

[0472] The above-described embodiment can be applied to various devices described below. First, the processor (202) of the second device (200) can generate bitmap information including a first code point value and a second code point value. For example, the first code point value is associated with a first device group, the second code point value is associated with a second device group, and based on the first code point value being identical to the second code point value, the bitmap information can include additional information. Then, the processor (202) of the second device (200) can control the transceiver (206) to transmit a low-power wake-up signal including the bitmap information. Then, the processor (202) of the second device (200) can control the transceiver (206) to transmit a paging message at a paging opportunity. For example, the paging message may be received by the first device (100) included in the first device group or the second device group.

[0473] 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 coupled to the at least one processor and storing instructions. For example, the instructions, based on execution by the at least one processor, cause the second device to: generate bitmap information including a first code point value and a second code point value, wherein the first code point value is associated with a first device group, the second code point value is associated with a second device group, and based on the first code point value being identical to the second code point value, the bitmap information includes additional information; transmit a low power wake-up signal including the bitmap information; and transmit a paging message at a paging opportunity, wherein the paging message is receivable by a first device included in the first device group or the second device group.

[0474] For example, the bitmap information may be 6-bit information, the first code point value may be 3-bit information, and the second code point value may be 3-bit information.

[0475] For example, based on the first code point value being 111, the first device group may include all device groups.

[0476] For example, the additional information may include information related to fallback to discontinuous reception based paging operation.

[0477] For example, the additional information may include information related to changes in system information.

[0478] For example, the additional information may include information related to an earthquake and tsunami warning system (ETWS) or a commercial mobile alert system (CMAS).

[0479] For example, the additional information may include weather-related information for all devices that received the low-power weather signal.

[0480] For example, the additional information may include information related to a change in a base station-to-terminal control channel monitoring target.

[0481] For example, the base station-to-terminal control channel monitoring target may include a set of search spaces.

[0482] For example, based on the first code point value and the second code point value being both 001, the additional information may be information related to fallback to a discontinuous reception-based paging operation, based on the first code point value and the second code point value being both 010, the additional information may be information related to a change in system information, based on the first code point value and the second code point value being both 011, the additional information may be information related to ETWS or CMAS, and based on the first code point value and the second code point value being both 111, the additional information may be information related to no device group being indicated.

[0483] For example, the first code point value and the second code point value may be transmitted separately.

[0484] For example, the first code point value may be transmitted at a first low-power weather signal monitoring period, and the second code point value may be transmitted at a second low-power weather signal monitoring period that is different from the first low-power weather signal monitoring period.

[0485] The various embodiments of the present disclosure may be combined with each other.

[0486] Below, a description is given of devices to which various embodiments of the present disclosure can be applied.

[0487] Although not limited thereto, the various descriptions, functions, procedures, proposals, methods and / or operational flowcharts disclosed in this document may be applied to various fields requiring wireless communication / connectivity (e.g., 5G) between devices.

[0488] Hereinafter, more specific examples will be provided with reference to the drawings. In the drawings / descriptions below, the same drawing reference numerals may represent identical or corresponding hardware blocks, software blocks, or functional blocks, unless otherwise described.

[0489] Fig. 16 illustrates a communication system (1) according to one embodiment of the present disclosure. The embodiment of Fig. 16 can be combined with various embodiments of the present disclosure.

[0490] Referring to FIG. 16, 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 a 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 Things) device (100f), and an AI device / server (400). For example, the vehicle may include a vehicle equipped with a wireless communication function, an autonomous vehicle, a vehicle capable of performing vehicle-to-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., an Advanced Air Mobility (AAM)). The XR device may include 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, a digital signage, a vehicle, a robot, etc. The portable device may include a smartphone, a smart pad, a wearable device (e.g., a smart watch, smart glasses), a computer (e.g., a laptop, etc.), 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 also be implemented as a wireless device, and a specific wireless device (200a) may operate as a base station / network node to other wireless devices.

[0491] Here, the wireless communication technology implemented in the wireless devices (100a to 100f) of the present disclosure may include not only LTE, NR, and 6G, but also Narrowband Internet of Things for low-power communication. At this time, for example, NB-IoT technology may be an example of LPWAN (Low Power Wide Area Network) technology, and may be implemented with standards such as LTE Cat NB1 and / or LTE Cat NB2, and is not limited to the above-described names. Additionally or alternatively, the wireless communication technology implemented in the wireless devices (100a to 100f) of the present disclosure may perform communication based on LTE-M technology. At this time, for example, LTE-M technology may be an example of LPWAN technology, and may be called by various names such as eMTC (enhanced Machine Type Communication). For example, LTE-M technology can be implemented by 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 above-described names. Additionally or alternatively, the wireless communication technology implemented in the wireless devices (100a to 100f) of the present disclosure can include at least one of ZigBee, Bluetooth, and Low Power Wide Area Network (LPWAN) considering low-power communication, and is not limited to the above-described names. For example, ZigBee technology can create personal area networks (PAN) related to small / low-power digital communication based on various standards such as IEEE 802.15.4, and can be called by various names.

[0492] Wireless devices (100a to 100f) can be connected to a network (300) via a base station (200). Artificial Intelligence (AI) technology can be applied to the wireless devices (100a to 100f), and the wireless devices (100a to 100f) can be connected to an AI server (400) via the network (300). The network (300) can be configured using a 3G network, a 4G (e.g., LTE) network, a 5G (e.g., NR) network, etc. The wireless devices (100a to 100f) can communicate with each other via the base station (200) / network (300), but can 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). In addition, IoT devices (e.g., sensors) can communicate directly with other IoT devices (e.g., sensors) or other wireless devices (100a to 100f).

[0493] Wireless communication / connection (150a, 150b, 150c) can be established between wireless devices (100a~100f) / base stations (200), and base stations (200) / base stations (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 base station-to-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 each other. For example, wireless communication / connection (150a, 150b, 150c) can transmit / receive signals through various physical channels. To this end, based on various proposals of the present disclosure, at least some of 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.), and resource allocation processes can be performed.

[0494] FIG. 17 illustrates a wireless device according to an embodiment of the present disclosure. The embodiment of FIG. 17 may be combined with various embodiments of the present disclosure.

[0495] Referring to FIG. 17, the first wireless device (100) and the second wireless device (200) can transmit and receive wireless signals via various wireless access technologies (e.g., LTE, NR). Here, {the first wireless device (100), the second wireless device (200)} can correspond to {the wireless device (100x), the base station (200)} and / or {the wireless device (100x), the wireless device (100x)} of FIG. 16.

[0496] 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 a 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.

[0497] A first wireless device (100) includes one or more processors (102) and one or more memories (104), and may further include one or more transceivers (106) and / or one or more antennas (108). The processor (102) controls the memories (104) and / or the transceivers (106), and may be configured to implement the descriptions, functions, procedures, proposals, methods, and / or operational flowcharts disclosed in this document. For example, the processor (102) may process information in the memory (104) to generate first information / signal, and then transmit a wireless signal including the first information / signal via the transceiver (106). Furthermore, the processor (102) may receive a wireless signal including second information / signal via the transceiver (106), and then store information obtained from signal processing of the second information / signal in the memory (104). The memory (104) may be connected to the processor (102) and may store various information related to the operation of the processor (102). For example, the memory (104) may perform some or all of the processes controlled by the processor (102), or may store software code including commands for performing the descriptions, functions, procedures, proposals, methods, and / or operation flowcharts disclosed in this document. Here, the processor (102) and the memory (104) may be part of a communication modem / circuit / chip designed to implement a 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 via one or more antennas (108). The transceiver (106) may include a transmitter and / or a receiver. The transceiver (106) may be used interchangeably with an RF (Radio Frequency) unit. In the present disclosure, a wireless device may also mean a communication modem / circuit / chip.

[0498] A second wireless device (200) includes one or more processors (202), one or more memories (204), and may further include one or more transceivers (206) and / or one or more antennas (208). The processor (202) controls the memories (204) and / or the transceivers (206), and may be configured to implement the descriptions, functions, procedures, proposals, methods, and / or operational flowcharts disclosed in this document. For example, the processor (202) may process information in the memory (204) to generate third information / signals, and then transmit a wireless signal including the third information / signals via the transceivers (206). In addition, the processor (202) may receive a wireless signal including fourth information / signals via the transceivers (206), and then store information obtained from signal processing of the fourth information / signals in the memory (204). The memory (204) may be connected to the processor (202) and may store various information related to the operation of the processor (202). For example, the memory (204) may perform some or all of the processes controlled by the processor (202), or may store software code including commands for performing the descriptions, functions, procedures, proposals, methods, and / or operation flowcharts disclosed in this document. Here, the processor (202) and the memory (204) may be part of a communication modem / circuit / chip designed to implement wireless communication technology (e.g., LTE, NR). The transceiver (206) may be connected to the processor (202) and may transmit and / or receive wireless signals via one or more antennas (208). The transceiver (206) may include a transmitter and / or a receiver. The transceiver (206) may be used interchangeably with an RF unit. In the present disclosure, a wireless device may also mean a communication modem / circuit / chip.

[0499] Hereinafter, the 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 one or more Service Data Units (SDUs) according to the descriptions, functions, procedures, proposals, methods, and / or operation flowcharts 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 operation flowcharts disclosed in this document. One or more processors (102, 202) can generate signals (e.g., baseband signals) including PDUs, SDUs, messages, control information, data or information according to the functions, procedures, proposals and / or methods disclosed herein, and provide the signals to one or more transceivers (106, 206). One or more processors (102, 202) can receive signals (e.g., baseband signals) from one or more transceivers (106, 206) and obtain PDUs, SDUs, messages, control information, data or information according to the descriptions, functions, procedures, proposals, methods and / or operational flowcharts disclosed herein.

[0500] One or more processors (102, 202) may be referred to as a controller, a microcontroller, a microprocessor, or a 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 operational 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. The descriptions, functions, procedures, suggestions, methods and / or operation flowcharts disclosed in this document may be implemented using firmware or software configured to perform one or more processors (102, 202) or stored in one or more memories (104, 204) and executed by one or more processors (102, 202). The descriptions, functions, procedures, suggestions, methods and / or operation flowcharts disclosed in this document may be implemented using firmware or software in the form of codes, instructions and / or sets of instructions.

[0501] One or more memories (104, 204) may be coupled to one or more processors (102, 202) and may store various forms of data, signals, messages, information, programs, codes, instructions, and / or commands. The one or more memories (104, 204) may be configured as ROM, RAM, EPROM, flash memory, hard drives, registers, cache memory, computer-readable storage media, and / or combinations thereof. The one or more memories (104, 204) may be located internally and / or externally to the one or more processors (102, 202). Additionally, the one or more memories (104, 204) may be coupled to the one or more processors (102, 202) via various technologies, such as wired or wireless connections.

[0502] One or more transceivers (106, 206) can transmit user data, control information, wireless signals / channels, etc., as mentioned in the methods and / or flowcharts of this document, to one or more other devices. One or more transceivers (106, 206) can receive user data, control information, wireless signals / channels, etc., as mentioned in the descriptions, functions, procedures, proposals, methods and / or flowcharts of this document, from one or more other devices. For example, one or more transceivers (106, 206) can be connected to one or more processors (102, 202) and can transmit and receive wireless signals. For example, one or more processors (102, 202) can 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 coupled 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, or the like, as referred to in the descriptions, functions, procedures, proposals, methods, and / or operational flowcharts disclosed herein, via 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 received user data, control information, wireless signals / channels, etc. from RF band signals to baseband signals in order to process the received user data, control information, wireless signals / channels, etc. using one or more processors (102, 202).One or more transceivers (106, 206) may convert user data, control information, wireless signals / channels, etc. processed by one or more processors (102, 202) from baseband signals to RF band signals. For this purpose, one or more transceivers (106, 206) may include an (analog) oscillator and / or filter.

[0503] FIG. 18 illustrates a signal processing circuit for a transmission signal according to an embodiment of the present disclosure. The embodiment of FIG. 18 can be combined with various embodiments of the present disclosure.

[0504] 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 operations / functions of FIG. 18 may be performed in the processor (102, 202) and / or the transceiver (106, 206) of FIG. 17. The hardware elements of FIG. 18 may be implemented in the processor (102, 202) and / or the transceiver (106, 206) of FIG. 17. For example, blocks 1010 to 1060 may be implemented in the processor (102, 202) of FIG. 17. Additionally, blocks 1010 to 1050 may be implemented in the processor (102, 202) of FIG. 17, and block 1060 may be implemented in the transceiver (106, 206) of FIG. 17.

[0505] 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 can include a transport block (e.g., an UL-SCH transport block, a DL-SCH transport block). The wireless signal can be transmitted through various physical channels (e.g., a terminal-to-base station physical shared channel (e.g., PUSCH), a base station-to-terminal physical shared channel (e.g., PDSCH)).

[0506] Specifically, the codeword can be converted into a bit sequence scrambled by a scrambler (1010). The scramble sequence used for scrambling is generated based on an initialization value, and the initialization value may include ID information of the 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 a precoding matrix W of N*M. 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 complex modulation symbols. In addition, the precoder (1040) can perform precoding without performing transform precoding.

[0507] The resource mapper (1050) can map modulation symbols of each antenna port to time-frequency resources. The time-frequency resources can include multiple symbols (e.g., CP-OFDMA symbols, DFT-s-OFDMA symbols) in the time domain and multiple subcarriers in the frequency domain. The signal generator (1060) generates a wireless signal from the mapped modulation symbols, and the generated wireless signal can be transmitted to another device through each antenna. To this end, the signal generator (1060) can include an Inverse Fast Fourier Transform (IFFT) module, a Cyclic Prefix (CP) inserter, a Digital-to-Analog Converter (DAC), a frequency uplink converter, etc.

[0508] The signal processing process for receiving signals in a wireless device can be configured in reverse order of the signal processing process (1010 to 1060) of FIG. 18. For example, a wireless device (e.g., 100, 200 of FIG. 17) can receive wireless signals from the outside through an antenna port / transceiver. The received wireless signals can be converted into baseband signals through a signal restorer. For this purpose, the signal restorer can include a frequency downlink converter, an analog-to-digital converter (ADC), a CP remover, and a fast Fourier transform (FFT) module. Thereafter, the baseband signal can be restored to a codeword through a resource demapper process, a postcoding process, a demodulation process, and a descrambling process. The codewords can be restored to the original information blocks 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.

[0509] Figure 19 illustrates a wireless device according to an embodiment of the present disclosure. The wireless device may be implemented in various forms depending on the use case / service (see Figure 16). The embodiment of Figure 19 may be combined with various embodiments of the present disclosure.

[0510] Referring to FIG. 19, the wireless device (100, 200) corresponds to the wireless device (100, 200) of FIG. 17 and may be composed of various elements, components, units / units, 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 an additional element (140). The communication unit may include a communication circuit (112) and a 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. 17. For example, the transceiver(s) (114) may include one or more transceivers (106, 206) and / or one or more antennas (108, 208) of FIG. 17. The control unit (120) is electrically connected to the communication unit (110), the memory unit (130), and the additional elements (140) and controls the overall operation of the wireless device. For example, the control unit (120) may control the electrical / mechanical operation of the wireless device based on the program / code / command / information stored in the memory unit (130). In addition, the control unit (120) may transmit information stored in the memory unit (130) to an external device (e.g., another communication device) via a wireless / wired interface through the communication unit (110), or store information received from an external device (e.g., another communication device) via a wireless / wired interface in the memory unit (130).

[0511] The additional element (140) may be configured in various ways depending on the type of the 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. 16, 100a), a vehicle (Fig. 16, 100b-1, 100b-2), an XR device (Fig. 16, 100c), a portable device (Fig. 16, 100d), a home appliance (Fig. 16, 100e), an IoT device (Fig. 16, 100f), a digital broadcasting terminal, a hologram device, a public safety device, an MTC device, a medical device, a fintech device (or a financial device), a security device, a climate / environmental device, an AI server / device (Fig. 16, 400), a base station (Fig. 16, 200), a network node, etc. Wireless devices may be mobile or stationary depending on the use / service.

[0512] In FIG. 19, various elements, components, units / parts, and / or modules within the wireless device (100, 200) may be interconnected entirely via a wired interface, or at least some may be wirelessly 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 wired, and the control unit (120) and the first unit (e.g., 130, 140) may be wirelessly connected via the communication unit (110). In addition, each element, component, unit / part, and / or module within the wireless device (100, 200) may further include one or more elements. For example, the control unit (120) may be composed of one or more processor sets. 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 a random access memory (RAM), a dynamic RAM (DRAM), a read only memory (ROM), a flash memory, a volatile memory, a non-volatile memory, and / or a combination thereof.

[0513] Below, the implementation example of Fig. 19 is described in more detail with reference to the drawings.

[0514] FIG. 20 illustrates a mobile device according to an embodiment of the present disclosure. The mobile device may include a smartphone, a smart pad, a wearable device (e.g., a smartwatch, smartglasses), or a portable computer (e.g., a laptop, etc.). The mobile device may be referred to as a Mobile Station (MS), a User Terminal (UT), a Mobile Subscriber Station (MSS), a Subscriber Station (SS), an Advanced Mobile Station (AMS), or a Wireless Terminal (WT). The embodiment of FIG. 20 may be combined with various embodiments of the present disclosure.

[0515] Referring to FIG. 20, 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 a part of the communication unit (110). Blocks 110 to 130 / 140a to 140c correspond to blocks 110 to 130 / 140 of FIG. 19, respectively.

[0516] 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 components of the mobile device (100) to perform various operations. The control unit (120) can include an AP (Application Processor). The memory unit (130) can store data / parameters / programs / codes / commands required for operating the mobile device (100). In addition, the memory unit (130) can store input / output data / information, etc. The power supply unit (140a) supplies power to the mobile device (100) and can include a wired / wireless charging circuit, a battery, etc. The interface unit (140b) can support connection between the mobile device (100) and other external devices. The interface unit (140b) can include various ports (e.g., audio input / output ports, video input / output ports) for connection with external devices. The input / output unit (140c) can input or output video information / signals, audio information / signals, data, and / or information input from a user. The input / output unit (140c) may include a camera, a microphone, a user input unit, a display unit (140d), a speaker, and / or a haptic module.

[0517] For example, in the case of data communication, the input / output unit (140c) obtains information / signals (e.g., touch, text, voice, image, video) input by the user, and the obtained 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 other wireless devices or to a base station. In addition, the communication unit (110) can receive wireless signals from other wireless devices or base stations, and then restore the received wireless signals to the 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).

[0518] FIG. 21 illustrates a vehicle or autonomous vehicle according to one embodiment of the present disclosure. The vehicle or autonomous vehicle may be implemented as a mobile robot, a car, a train, a manned or unmanned aerial vehicle (AV), a ship, or the like. The embodiment of FIG. 21 may be combined with various embodiments of the present disclosure.

[0519] Referring to FIG. 21, a vehicle or autonomous vehicle (100) may include an antenna unit (108), a communication unit (110), a control unit (120), a driving unit (140a), a power supply unit (140b), a sensor unit (140c), and an autonomous driving unit (140d). The antenna unit (108) may be configured as a part of the communication unit (110). Blocks 110 / 130 / 140a to 140d correspond to blocks 110 / 130 / 140 of FIG. 19, respectively.

[0520] The communication unit (110) can transmit and receive signals (e.g., data, control signals, etc.) with external devices such as other vehicles, base stations (e.g., base stations, road side units, etc.), and servers. The control unit (120) can control elements of the vehicle or autonomous vehicle (100) to perform various operations. The control unit (120) can include an ECU (Electronic Control Unit). The drive unit (140a) can drive the vehicle or autonomous vehicle (100) on the ground. The drive unit (140a) can include an engine, a motor, a power train, wheels, brakes, a steering device, etc. The power supply unit (140b) supplies power to the vehicle or autonomous vehicle (100) and can include a wired / wireless charging circuit, a battery, etc. The sensor unit (140c) can obtain vehicle status, surrounding environment information, user information, etc. The sensor unit (140c) may include an IMU (inertial measurement unit) sensor, a collision sensor, a wheel sensor, a speed sensor, an incline sensor, a weight detection sensor, a heading sensor, a position module, a vehicle forward / backward sensor, a battery sensor, a fuel sensor, a tire sensor, a steering sensor, a temperature sensor, a humidity sensor, an ultrasonic sensor, an illuminance sensor, a pedal position sensor, etc. The autonomous driving unit (140d) may implement a technology for maintaining a driving lane, a technology for automatically controlling speed such as adaptive cruise control, a technology for automatically driving along a set path, a technology for automatically setting a path and driving when a destination is set, etc.

[0521] For example, the communication unit (110) can receive map data, traffic information data, etc. from an external server. The autonomous driving unit (140d) can generate an autonomous driving route and driving plan based on the acquired data. The control unit (120) can control the drive unit (140a) so that the vehicle or autonomous vehicle (100) moves along the autonomous driving route according to the driving plan (e.g., speed / direction control). During autonomous driving, the communication unit (110) can irregularly / periodically acquire the latest traffic information data from an external server and can acquire surrounding traffic information data from surrounding vehicles. In addition, during autonomous driving, the sensor unit (140c) can acquire vehicle status and surrounding environment information. The autonomous driving unit (140d) can update the autonomous driving route and driving plan based on the newly acquired data / information. The communication unit (110) can transmit information regarding the vehicle location, autonomous driving route, driving plan, etc. to the external server. External servers can predict traffic information data in advance using AI technology, etc. based on information collected from vehicles or autonomous vehicles, and provide the predicted traffic information data to vehicles or autonomous vehicles.

[0522] The claims set forth in this disclosure may be combined in various ways. For example, the technical features of the method claims of this disclosure may be combined and implemented as a device, and the technical features of the device claims of this disclosure may be combined and implemented as a method. Furthermore, the technical features of the method claims of this disclosure and the technical features of the device claims of this disclosure may be combined and 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 and implemented as a method.

Claims

1. In the method, Monitor low power weather signals transmitted from a second device; The above low-power weather signal includes bitmap information including a first code point value and a second code point value, The above first code point value is associated with the first device group, The above second code point value is associated with a second device group, and A step in which the bitmap information includes additional information based on the first code point value being the same as the second code point value; and A method comprising the step of performing paging at a paging opportunity based on whether the first device is included in the first device group or the second device group.

2. In paragraph 1, The above bitmap information is 6-bit information, The above first code point value is 3-bit information, and A method wherein the above second code point value is 3-bit information.

3. In paragraph 1, A method wherein the first device group includes all device groups, based on the first code point value being 111.

4. In paragraph 1, A method wherein the additional information includes information related to fallback to discontinuous reception based paging operation.

5. In paragraph 1, The above additional information includes information related to changes in system information.

6. In paragraph 1, A method wherein the above additional information includes information related to an earthquake and tsunami warning system (ETWS) or a commercial mobile alert system (CMAS).

7. In paragraph 1, A method wherein the additional information includes weather-related information for all devices that received the low-power weather signal.

8. In paragraph 1, A method wherein the above additional information includes information related to a change in a base station-to-terminal control channel monitoring target.

9. In paragraph 8, A method wherein the base station-to-terminal control channel monitoring target includes a search space set.

10. In paragraph 1, Based on the fact that both the first code point value and the second code point value are 001, the additional information is information related to fallback to a paging operation based on non-continuous reception, Based on the fact that both the first code point value and the second code point value are 010, the additional information is information related to a change in system information, Based on the fact that both the first code point value and the second code point value are 011, the additional information is information related to ETWS or CMAS, and A method wherein the additional information is information related to no device group being indicated, based on the fact that both the first code point value and the second code point value are 111.

11. In paragraph 1, A method wherein the first code point value and the second code point value are monitored separately.

12. In paragraph 11, The above first code point value is monitored at the first low-power weather signal monitoring period, and A method wherein the second code point value is monitored at a second low-power weather signal monitoring time that is different from the first low-power weather signal monitoring time.

13. In paragraph 1, A method, wherein the method is performed by the first device.

14. In the first device, At least one transmitter / receiver; at least one processor; and At least one memory connected to the at least one processor and storing instructions, The above instructions, based on being executed by the at least one processor, cause the first device to: Monitor low power weather signals transmitted from a second device; The above low-power weather signal includes bitmap information including a first code point value and a second code point value, The above first code point value is associated with the first device group, The above second code point value is associated with a second device group, and Based on the first code point value being the same as the second code point value, the bitmap information includes additional information; and A first device that performs paging at a paging opportunity based on whether the first device is included in the first device group or the second device group.

15. In a processing device set to control the first device, at least one processor; and At least one memory connected to the at least one processor and storing instructions, The above instructions, based on being executed by the at least one processor, cause the first device to: Monitor low power weather signals transmitted from a second device; The above low-power weather signal includes bitmap information including a first code point value and a second code point value, The above first code point value is associated with the first device group, The above second code point value is associated with a second device group, and Based on the first code point value being the same as the second code point value, the bitmap information includes additional information; and A processing device that performs paging at a paging opportunity based on whether the first device is included in the first device group or the second device group.

16. A non-transitory computer-readable storage medium that records commands, The above commands, when executed, cause the first device to: Monitor low power weather signals transmitted from a second device; The above low-power weather signal includes bitmap information including a first code point value and a second code point value, The above first code point value is associated with the first device group, The above second code point value is associated with a second device group, and Based on the first code point value being the same as the second code point value, the bitmap information includes additional information; and A non-transitory computer-readable storage medium that causes paging to be performed at a paging opportunity based on whether the first device is included in the first device group or the second device group.

17. In the method, Generate bitmap information including a first code point value and a second code point value, The above first code point value is associated with the first device group, The above second code point value is associated with a second device group, and A step wherein the bitmap information includes additional information based on the first code point value being the same as the second code point value; A step of transmitting a low-power weather signal including the bitmap information; and Including the step of transmitting a paging message at a paging opportunity, A method wherein the paging message is received by a first device included in the first device group or the second device group.

18. In paragraph 17, Based on the fact that both the first code point value and the second code point value are 001, the additional information is information related to fallback to a paging operation based on discontinuous reception, Based on the fact that both the first code point value and the second code point value are 010, the additional information is information related to a change in system information, Based on the fact that both the first code point value and the second code point value are 011, the additional information is information related to the ETWS (earthquake and tsunami warning system) or CMAS (commercial mobile alert system), and A method wherein the additional information is information related to no device group being indicated, based on the fact that both the first code point value and the second code point value are 111.

19. In the second device, At least one transmitter / receiver; at least one processor; and At least one memory connected to the at least one processor and storing instructions, The above instructions, based on being executed by the at least one processor, cause the second device to: Generate bitmap information including a first code point value and a second code point value, The above first code point value is associated with the first device group, The above second code point value is associated with a second device group, and Based on the first code point value being the same as the second code point value, the bitmap information includes additional information; Transmitting a low-power weather signal including the bitmap information; and Send a paging message on a paging occasion, A second device, wherein the paging message is received by a first device included in the first device group or the second device group.

20. In paragraph 19, Based on the fact that both the first code point value and the second code point value are 001, the additional information is information related to fallback to a paging operation based on discontinuous reception, Based on the fact that both the first code point value and the second code point value are 010, the additional information is information related to a change in system information, Based on the fact that both the first code point value and the second code point value are 011, the additional information is information related to the ETWS (earthquake and tsunami warning system) or CMAS (commercial mobile alert system), and A second device, wherein the additional information is information related to no device group being indicated, based on the fact that both the first code point value and the second code point value are 111.

Images