Measurement gap-based communication method and apparatus

Abstract

In the present invention, a first device may obtain information related to a set of cells for multi-cell scheduling, and / or the first device may receive, from a second device, downlink control information including measurement gap cancellation information, and / or the first device may perform communication during a measurement gap on the basis of the measurement gap cancellation information.

Description

Measurement gap-based communication method and device

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

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

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

[0004] Maximum data rate per device 1 Tbps E2E latency 1 ms Maximum spectral efficiency 100 bps / Hz Mobility support up to 1000 km / hr Satellite integration Fully AI Fully autonomous driving Fully XR Fully haptic communication Fully

[0005] According to one embodiment of the present disclosure, a method may be provided. For example, the method may include at least one of: a first device acquiring information related to a set of cells for multi-cell scheduling; a first device receiving downlink control information including measurement gap cancellation information from a second device; and / or a first device performing communication in a measurement gap based on the measurement gap cancellation information. For example, based on the fact that information allowing measurement gap cancellation is set within the information related to the set of cells, the measurement gap cancellation information may be included in the downlink control information.

[0006] According to one embodiment of the present disclosure, a first device may be provided. For example, the first device may include at least one transceiver; at least one processor; and at least one memory connected to the at least one processor and storing instructions. For example, the instructions may cause the first device to perform an operation based on execution by the at least one processor. For example, the operation may include at least one of: obtaining information related to a set of cells for multi-cell scheduling; receiving downlink control information including measurement gap cancellation information from a second device; and / or performing communication in a measurement gap based on the measurement gap cancellation information. For example, the measurement gap cancellation information may be included in the downlink control information based on information allowing measurement gap cancellation being set within the information related to the set of cells.

[0007] According to one embodiment of the present disclosure, a processing device may be provided. For example, the processing device may include at least one processor; and at least one memory connected to the at least one processor and storing instructions. For example, the instructions may cause a first device to perform an operation based on execution by the at least one processor. For example, the operation may include at least one of: obtaining information related to a set of cells for multi-cell scheduling; receiving downlink control information including measurement gap cancellation information from a second device; and / or performing communication in a measurement gap based on the measurement gap cancellation information. For example, based on information allowing measurement gap cancellation being set within the information related to the set of cells, the measurement gap cancellation information may be included in the downlink control information.

[0008] According to one embodiment of the present disclosure, a non-transient computer-readable storage medium recording instructions may be provided. For example, the instructions may cause a first device to perform an operation based on execution. For example, the operation may include at least one of: obtaining information related to a set of cells for multi-cell scheduling; receiving downlink control information including measurement gap cancellation information from a second device; and / or performing communication at a measurement gap based on the measurement gap cancellation information. For example, based on information allowing measurement gap cancellation being set within the information related to the set of cells, the measurement gap cancellation information may be included in the downlink control information.

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

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

[0011] FIG. 3 shows the structure of a wireless frame according to one embodiment of the present disclosure.

[0012] FIG. 4 shows a slot structure of a frame according to one embodiment of the present disclosure.

[0013] FIG. 5 shows an example of a BWP according to one embodiment of the present disclosure.

[0014] FIG. 6 shows a communication structure that can be provided in a 6G system according to one embodiment of the present disclosure.

[0015] FIG. 7 illustrates an example of a communication scenario based on a 6G system according to an embodiment of the present disclosure.

[0016] FIG. 8 illustrates a procedure performed by a first device according to one embodiment of the present disclosure.

[0017] FIG. 9 illustrates a procedure performed by a second device according to one embodiment of the present disclosure.

[0018] FIG. 10 shows a communication system (1) according to one embodiment of the present disclosure.

[0019] FIG. 11 shows a wireless device according to one embodiment of the present disclosure.

[0020] FIG. 12 shows a signal processing circuit for a transmission signal according to one embodiment of the present disclosure.

[0021] FIG. 13 shows a wireless device according to one embodiment of the present disclosure.

[0022] FIG. 14 shows a portable device according to one embodiment of the present disclosure.

[0023] In the present disclosure, "A or B" may mean "only A," "only B," or "both A and B." Alternatively, in the present disclosure, "A or B" may be interpreted as "A and / or B." For example, in the present disclosure, "A, B or C" may mean "only A," "only B," "only C," or "any combination of A, B and C."

[0024] A slash ( / ) or a comma used in the present disclosure may mean "and / or." For example, "A / B" may mean "A and / or B." Accordingly, "A / B" may mean "only A," "only B," or "both A and B." For example, "A, B, C" may mean "A, B or C."

[0025] In the present disclosure, "at least one of A and B" may mean "only A," "only B," or "both A and B." Additionally, in the present disclosure, the expressions "at least one of A or B" or "at least one of A and / or B" may be interpreted as synonymous with "at least one of A and B."

[0026] Additionally, in the present disclosure, "at least one of A, B and C" may mean "only A," "only B," "only C," or "any combination of A, B and C." Additionally, "at least one of A, B or C" or "at least one of A, B and / or C" may mean "at least one of A, B and C."

[0027] Additionally, parentheses used in the present disclosure may mean "for example." Specifically, when indicated as "control information (PDCCH)," "PDCCH" may be proposed as an example of "control information." In other words, the "control information" of the present disclosure is not limited to "PDCCH," and "PDCCH" may be proposed as an example of "control information." Furthermore, even when indicated as "control information (i.e., PDCCH)," "PDCCH" may be proposed as an example of "control information."

[0028] In the following explanation, 'when, if, in case of' can be replaced with 'based on'.

[0029] Technical features described individually within one drawing in this disclosure may be implemented individually or simultaneously.

[0030] In the present disclosure, a higher layer parameter may be a parameter that is set for the terminal, pre-set, or pre-defined. For example, a base station or a network may transmit the higher layer parameter to the terminal. For example, the higher layer parameter may be transmitted via radio resource control (RRC) signaling or medium access control (MAC) signaling.

[0031] In the present disclosure, "configured or defined" may be interpreted as being configured or pre-configured to a device through pre-defined signaling from a base station or network (e.g., SIB, MAC, RRC, DCI (downlink control information), etc.). In the present disclosure, "configured or defined" may be interpreted as being configured or pre-configured to a device through pre-defined signaling from another device (e.g., MAC, RRC, SCI (sidelink control information), control information signaled between devices, etc.). In the present disclosure, "configured or defined" may be interpreted as being pre-configured to a device.

[0032] In the present disclosure, user equipment (UE) may refer to a device, a portable device, a wireless device, etc. In the present disclosure, a base station (BS) may refer to a radio access network (RAN) node, a non-terrestrial network (NTN) cell / node, a transmission reception point (TRP), a network, an integrated access and backhaul (IAB) node, a device, a portable device, a wireless device, etc.

[0033] The technology proposed in this disclosure can be used in various wireless communication systems such as CDMA (code division multiple access), FDMA (frequency division multiple access), TDMA (time division multiple access), OFDMA (orthogonal frequency division multiple access), and SC-FDMA (single carrier frequency division multiple access). CDMA can be implemented with wireless technologies such as UTRA (universal terrestrial radio access) or CDMA2000. TDMA can be implemented with wireless technologies such as GSM (global system for mobile communications) / GPRS (general packet radio service) / EDGE (enhanced data rates for GSM evolution). OFDMA can be implemented with wireless technologies such as IEEE (institute of electrical and electronics engineers) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802-20, E-UTRA (evolved UTRA), LTE (long term evolution), and 5G NR.

[0034] The technology proposed in this disclosure can be implemented as 6G wireless technology and can be applied to various 6G systems. For example, 6G systems may have key factors such as eMBB (enhanced mobile broadband), URLLC (ultra-reliable low latency communications), mMTC (massive machine-type communication), AI (artificial intelligence) integrated communication, tactile internet, high throughput, high network capacity, high energy efficiency, low backhaul and access network congestion, and enhanced data security.

[0035] FIG. 1 illustrates a communication procedure between devices according to one embodiment of the present disclosure. The embodiment of FIG. 1 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, suggestions, methods, and / or operations of the embodiments may be omitted.

[0036] Referring to FIG. 1, in step S101, the first device and the second device can perform synchronization. For example, the first device may be a terminal and / or at least one of the devices proposed in the present disclosure. For example, the second device may be a base station, a network, a RAN node, an NTN node / cell, a TRP, a terminal and / or at least one of the devices proposed in the present disclosure. For example, the first device may perform an initial cell search operation. For example, the first device may detect at least one synchronization signal transmitted according to a rule predefined by the second device. Here, for example, the synchronization signal may include a plurality of synchronization signals (e.g., primary synchronization signal, secondary synchronization signal, etc.) classified according to structure or use. Through this, the first device can identify the boundaries of the frame, subframe, time unit, slot, and / or symbol of the second device, and the first device can obtain information about the second device (e.g., cell identifier).

[0037] In step S103, the first device may obtain system information transmitted by the second device. For example, the system information may include information related to the attributes, characteristics, and / or capabilities of the second device that are necessary to connect to the second device and use the service. For example, the system information may be classified according to content (e.g., whether it is essential for connection), transmission structure (e.g., the channel used, whether it is provided on-demand), etc. For example, the system information may be classified into a master information block (MIB) and a system information block (SIB). For example, if necessary, the first device may transmit a signal requesting the system information prior to receiving the system information. For example, the request and provision of the system information may be performed after a random access procedure described later.

[0038] In step S105, the first device and the second device may perform a random access procedure. For example, the first device may transmit and / or receive at least one message for the random access procedure (e.g., random access preamble, random access response message, etc.) based on information related to the random access channel of the second device obtained through system information (e.g., channel location, channel structure, structure of supported preamble, etc.). For example, the first device may transmit a preamble (e.g., Msg1) through the random access channel, and the first device may receive a random access response message (e.g., Msg2). The first device may transmit a message (e.g., Msg3) containing information related to the first device (e.g., identification information) to the second device using scheduling information included in the random access response message, and the first device may receive a message (e.g., Msg4) for contention resolution and / or connection establishment. For example, Msg1 and Msg3 can be transmitted and received as a single message (e.g., MsgA), and / or Msg2 and Msg4 can be transmitted and received as a single message (e.g., MsgB).

[0039] In step S107, the first device and the second device may perform signaling of control information. Here, for example, the control information may be defined in various layers, such as a layer controlling the connection (e.g., a radio resource control (RRC) layer), a layer handling mapping between a logical channel and a transmission channel (e.g., a media access control (MAC) layer), and a layer handling a physical channel (e.g., a physical (PHY) layer). For example, the first device and the second device may perform at least one of signaling to establish a connection, signaling to determine settings related to communication, and / or signaling to indicate allocated resources. For example, the control information may be signaled / transmitted through a control channel. For example, the control information and / or the control channel may be used to schedule at least one of data, a data channel (e.g., a shared channel), and / or control information on the data channel.

[0040] In step S109, the first device and the second device may transmit and / or receive data. For example, the first device and the second device may process data based on signaling of control information and transmit and / or receive it. For example, when transmitting data, the first device or the second device may perform at least one of channel encoding, rate matching, scrambling, constellation mapping, layer mapping, waveform modulation, antenna mapping, and / or resource mapping on the information bits. For example, when receiving data, the first device or the second device may perform at least one of signal extraction from resources, antenna-specific waveform demodulation, signal placement considering layer mapping, constellation demapping, descrambling, and / or channel decoding.

[0041] For example, the layers of the radio interface protocol between the first device and the second device can be classified into L1 (layer 1), L2 (layer 2), L3 (layer 3), etc. For example, the physical layer belonging to layer 1 can provide an information transfer service using a physical channel, and the radio resource control (RRC) layer located at layer 3 can perform the role of controlling radio resources between the first device and the second device. To this end, for example, the RRC layer can exchange RRC messages between the first device and the second device.

[0042] FIG. 2 illustrates a radio protocol architecture according to one embodiment of the present disclosure. The embodiment of FIG. 2 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, proposals, methods, and / or operations of said embodiment may be omitted. For example, FIG. 2(a) may represent a radio protocol stack in the user plane for uplink communication or downlink communication, and FIG. 2(b) may represent a radio protocol stack in the control plane for uplink communication or downlink communication. For example, FIG. 2(c) may represent a radio protocol stack in the user plane for device-to-device communication, and FIG. 2(d) may represent a radio protocol stack in the control plane for device-to-device communication.

[0043] For example, the physical layer can provide information transmission services to upper layers using a physical channel. For example, the physical layer can be connected to the upper layer, the MAC (medium access control) layer, through a transport channel. For example, data can be transmitted between the MAC layer and the physical layer through a transport channel. For example, transport channels can be classified according to how and with what characteristics data is transmitted through a wireless interface. For example, data can be transmitted through a physical channel between different physical layers, e.g., between the physical layers of a first device and a second device. For example, the physical channel can be modulated using the OFDM (orthogonal frequency division multiplexing) method, and time and frequency can be utilized as wireless resources.

[0044] For example, the MAC layer can provide services to the upper layer, the RLC (radio link control) layer, through logical channels. For example, the MAC layer can provide mapping functions from multiple logical channels to multiple transmission channels. For example, the MAC layer can provide logical channel multiplexing functions through mapping from multiple logical channels to a single transmission channel. For example, the MAC sublayer can provide data transmission services over logical channels.

[0045] For example, the RLC layer can perform concatenation, segmentation, and reassembly of RLC service data units (SDUs). For example, to guarantee various quality of service (QoS) required by a radio bearer (RB), the RLC layer can provide three modes of operation: transparent mode (TM), unacknowledged mode (UM), and acknowledged mode (AM). For example, AM RLC can provide error correction through automatic repeat requests (ARQ).

[0046] For example, the RRC (radio resource control) layer may be defined only in the control plane. For example, the RRC layer may be responsible for controlling logical channels, transmission channels, and physical channels in relation to the configuration, reconfiguration, and release of radio bearers. For example, RB may refer to a logical path provided by the first layer (e.g., physical layer) and the second layer (e.g., MAC layer, RLC layer, PDCP (packet data convergence protocol) layer, SDAP (service data adaptation protocol) layer, etc.) for data transfer between a first device and a second device.

[0047] For example, the functions of the PDCP layer in the user plane may include the delivery of user data, header compression, and ciphering. For example, the functions of the PDCP layer in the control plane may include the delivery of control plane data and encryption / integrity protection.

[0048] For example, the establishment of an RB can mean the process of defining the characteristics of the wireless protocol layer and channel to provide specific services, and setting each specific parameter and method of operation. For example, an RB can be divided into two types: an SRB (signaling radio bearer) and a DRB (data radio bearer). For example, an SRB can be used as a channel to transmit RRC messages in the control plane, and a DRB can be used as a channel to transmit user data in the user plane.

[0049] For example, a downlink transmission channel may include at least one of a broadcast channel (BCH) that transmits system information and / or a shared channel (SCH) that transmits user traffic or control messages. For example, traffic or control messages for a downlink multicast or broadcast service may be transmitted via a downlink SCH or via a separate multicast channel (MCH). Meanwhile, an uplink transmission channel may include at least one of a random access channel (RACH) that transmits initial control messages and / or a shared channel (SCH) that transmits user traffic or control messages. For example, a logical channel located above the transmission channel and mapped to the transmission channel may include at least one of a broadcast control channel (BCCH), a paging control channel (PCCH), a common control channel (CCCH), a multicast control channel (MCCH), and / or a multicast traffic channel (MTCH).

[0050] FIG. 3 shows the structure of a wireless frame according to one embodiment of the present disclosure. The embodiment of FIG. 3 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, proposals, methods, and / or operations of the embodiments may be omitted.

[0051] Referring to FIG. 3, radio frames may be used, for example, in uplink transmission, downlink transmission, and / or device-to-device transmission. For example, a radio frame may have a length of 10 ms and may be defined as two 5 ms half-frames (HF). For example, a half-frame may contain five 1 ms subframes (SF). For example, a subframe may be divided into one or more slots, and the number of slots within a subframe may be determined by subcarrier spacing (SCS). For example, each slot may contain 12 or 14 OFDM(A) symbols according to a cyclic prefix (CP).

[0052] For example, when normal CP is used, each slot may contain 14 symbols. For example, when extended CP is used, each slot may contain 12 symbols. Here, for example, the symbols may include OFDM symbols (or CP-OFDM symbols) and SC-FDMA (single carrier-FDMA) symbols (or DFT-s-OFDM (Discrete Fourier Transform-spread-OFDM) symbols).

[0053] Table 2 below shows the number of symbols per slot (N) according to the SCS setting (u) when Normal CP or Extended CP is used. slot symb ), number of slots per frame (N frame,u slot ) and the number of slots per subframe (N subframe,u slot) exemplifies.

[0054] CP Type SCS (15*2 u )N slot symb N frame,u slot N subframe,u slot Normal CP 15kHz (u=0) 1410 130kHz (u=1) 1420 260kHz (u=2) 1440 4120kHz (u=3) 1480 8240kHz (u=4) 14160 16 Extended CP 60kHz (u=2) 1240 4

[0055] For example, OFDM(A) numerology (e.g., SCS, CP length, etc.) may be configured differently among multiple cells merged into a single terminal. Accordingly, the (absolute time) interval of a time resource (e.g., subframe, slot, or TTI (transmit time interval)) composed of the same number of symbols may be configured differently among the merged cells. For example, in the present disclosure, time resources such as subframes, slots, TTI, etc. may be referred to as time units.

[0056] For example, multiple numerologies or SCSs may be supported to support various services. For example, if the SCS is 15 kHz, a wide area in traditional cellular bands may be supported, and if the SCS is 30 kHz / 60 kHz, dense-urban, lower latency, and wider carrier bandwidth may be supported. For example, if the SCS is 60 kHz or higher, a bandwidth greater than 24.25 GHz may be supported to overcome phase noise.

[0057] FIG. 4 shows a slot structure of a frame according to one embodiment of the present disclosure. The embodiment of FIG. 4 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, suggestions, methods, and / or operations of the embodiments may be omitted.

[0058] Referring to FIG. 4, for example, a slot may include multiple symbols in the time domain. For example, a carrier may include multiple subcarriers in the frequency domain. For example, a resource block (RB) may be defined as multiple consecutive subcarriers in the frequency domain. For example, a bandwidth part (BWP) may be defined as multiple consecutive (P)RBs ((physical) resource blocks) in the frequency domain and may correspond to a single numerology (e.g., SCS, CP length, etc.). For example, a carrier may include up to N BWPs (where N is a positive integer). For example, data communication may be performed through an active BWP. For example, each element may be referred to as a resource element (RE) in a resource grid and may be mapped to a single complex symbol.

[0059] For example, a BWP can be a continuous set of PRBs in a given numerology. For example, a PRB can be selected from a continuous subset of common resource blocks (CRBs) for a given numerology on a given carrier.

[0060] For example, the BWP may be at least one of an active BWP, an initial BWP, and / or a default BWP. For example, the terminal may not monitor downlink radio link quality on DL BWPs other than the active DL BWP on the PCell (primary cell). For example, the terminal may not receive PDCCH (physical downlink control channel), PDSCH (physical downlink shared channel), or CSI-RS (channel state information-reference signal) (except for RRM (radio resource management)) outside of the active DL BWP. For example, the terminal may not trigger CSI (channel state information) reporting for an inactive DL BWP. For example, the terminal may not transmit PUCCH (physical uplink control channel) or PUSCH (physical uplink shared channel) outside of the active UL (uplink) BWP. For example, for the downlink, the initial BWP can be given as a consecutive set of resource blocks (RBs) for the remaining minimum system information (RMSI) CORESET (control resource set) (set by the physical broadcast channel (PBCH)). For example, for the uplink, the initial BWP can be given by the system information block (SIB) for the random access procedure. For example, the default BWP can be set by the upper layer. For example, the initial value of the default BWP can be the initial DL BWP.For energy saving, if the terminal fails to detect DCI (downlink control information) for a certain period, the terminal can switch the active BWP of the terminal to the default BWP.

[0061] FIG. 5 illustrates an example of a BWP according to an embodiment of the present disclosure. The embodiment of FIG. 5 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, proposals, methods, and / or operations of the embodiments may be omitted. In the embodiment of FIG. 5, it is assumed that there are three BWPs.

[0062] Referring to FIG. 5, for example, a common resource block (CRB) may be a numbered carrier resource block from one end of the carrier band to the other, and a PRB may be a numbered resource block within each BWP. For example, point A may indicate a common reference point for the resource block grid.

[0063] For example, BWP is point A, offset from point A (N start BWP ) and bandwidth (N size BWP It can be set by ). For example, point A may be an external reference point of the PRB of a carrier where the subcarrier 0 of all numerologies (e.g., all numerologies supported by the network in that carrier) are aligned. For example, offset may be the PRB interval between the lowest subcarrier in a given numerology and point A. For example, bandwidth may be the number of PRBs in a given numerology.

[0064] FIG. 6 illustrates a communication structure that can be provided in a 6G system according to one embodiment of the present disclosure. The embodiment of FIG. 6 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, proposals, methods, and / or operations of said embodiments may be omitted.

[0065] As core implementation technologies for 6G systems, technologies such as artificial intelligence (AI), THz (Terahertz) communication, optical wireless technology, free space optical transmission (FSO) backhaul networks, large-scale MIMO (multiple input multiple output) technology, blockchain, 3D networking, quantum communication, unmanned aerial vehicles, cell-free communication, wireless information and energy transfer (WIET), integration of sensing and communication, integration of access backhaul networks, holographic beamforming, big data analysis, and large intelligent surface (LIS) can be adopted.

[0066] - Artificial Intelligence: Introducing AI into communications can streamline and enhance real-time data transmission. AI can determine how complex target tasks are performed using numerous analyses. For example, AI can increase efficiency and reduce processing latency. Time-consuming tasks such as handover, network selection, and resource scheduling can be performed instantly using AI. AI can also play a significant role in M2M, machine-to-human, and human-to-machine communication. Furthermore, AI can enable rapid communication in Brain-Computer Interfaces (BCI). AI-based communication systems can be supported by metamaterials, intelligent structures, intelligent networks, intelligent devices, intelligent cognitive radios, self-sustaining wireless networks, and machine learning.

[0067] - THz Communication: Data transmission rates can be increased by expanding bandwidth. This can be achieved by using sub-THz communication with wide bandwidth and applying advanced large-scale MIMO technology. THz waves, also known as sub-millimeter radiation, generally refer to a frequency band between 0.1 THz and 10 THz with corresponding wavelengths ranging from 0.03 mm to 3 mm. The 100 GHz-300 GHz band range (Sub-THz band) is considered the primary portion of the THz band for cellular communication. Adding the Sub-THz band to the mmWave band increases 6G cellular communication capacity. Among the defined THz bands, the 300 GHz-3 THz band is located in the far-infrared (IR) frequency band. Although the 300 GHz-3 THz band is part of the optical band, it lies at the boundary of the optical band and immediately following the RF band. Therefore, this 300 GHz-3 THz band exhibits similarities to RF. Key characteristics of THz communication include (i) widely available bandwidth to support very high data transmission rates, and (ii) high path loss occurring at high frequencies (highly directional antennas are indispensable). The narrow beam width generated by highly directional antennas reduces interference. The small wavelength of THz signals allows a much larger number of antenna elements to be integrated into devices and BSs operating in this band. This enables the use of advanced adaptive array technologies that can overcome range limitations.

[0068] - Large-scale MIMO technology

[0069] - Hologram beamforming (HBF)

[0070] - Optical wireless technology

[0071] - Free Space Optical Transmission Backhaul Network (FSO backhaul network)

[0072] - Quantum communication

[0073] - Cell-free communication

[0074] - Integration of wireless information and power transmission

[0075] - Integration of wireless communication and sensing

[0076] - Integrated access and backhaul network

[0077] - Big data analysis

[0078] - Reconfigurable intelligent metasurface

[0079] - Metaverse

[0080] - blockchain

[0081] - Advanced Air Mobility (AAM): AAM can be a broad concept encompassing Urban Air Mobility (UAM), Regional Air Mobility (RAM), and Uncrewed Aerial Systems (UAS). For example, AAM may include UAM, RAM, UAS, and UAVs (uncrewed aerial vehicles).

[0082] - Autonomous driving (self-driving): V2X (vehicle to everything), a core element of building autonomous driving infrastructure, refers to technologies that enable vehicles to communicate and share with various elements on the road to perform autonomous driving, such as wireless communication between vehicles (vehicle to vehicle, V2V) and between vehicles and infrastructure (vehicle to infrastructure, V2I).

[0083] - Non-terrestrial Network (NTN): An NTN may refer to a network or network segment that utilizes RF (radio frequency) resources mounted on a satellite (or UAS platform). The use of NTN services may be considered to secure wider coverage or to provide wireless communication services in locations where the installation of wireless communication base stations is difficult.

[0084] - 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.

[0085] - Reconfigurable Intelligent Surface (RIS): An RIS can be used to manipulate and enhance signal propagation in a wireless communication environment. For example, an RIS can be composed of many small antennas or metasurfaces arranged on a surface, each of which can actively control the phase, amplitude, polarization, etc., of the reflected signal. For instance, an RIS can improve signal reception by controlling the path, phase, and / or strength of the propagating signal. For instance, power consumption can be very low because power is consumed only for controlling the phase and amplitude of the small antennas. For instance, since an RIS can be reconfigured to suit various environments, it can meet diverse communication requirements and operate effectively in dynamic network environments.

[0086] 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, and some descriptions, functions, procedures, proposals, methods, and / or operations of the embodiments may be omitted.

[0087] Referring to FIG. 7, NTN communication can be performed based on a satellite network, HIBS (high-altitude platform stations (HAPS) as international mobile telecommunications (IMT) base stations (BS)), and an aeronautical communication-capable terminal (e.g., AAM). For example, to improve coverage, devices such as a satellite network, HIBS, and an aeronautical communication-capable terminal (e.g., AAM) can act as relays. For example, an AAM can communicate with a base station, a satellite network, etc., and / or an AAM can communicate directly with a terminal, another AAM, etc.

[0088] Meanwhile, in an NR system, a terminal may receive a measurement gap (MG) from a base station for intra-cell or inter-cell measurements. A terminal that has explicitly received an MG may not expect to receive a sounding reference signal (PDCCH / PUSCH / SRS) or a sounding reference signal (PDSCH / CSI-RS) during the MG interval, particularly in the case of a measurement based on receiving a synchronization signal block (SSB). For example, the terminal does not expect to receive a sounding reference signal (PDCCH / PDSCH / CSI-RS) or a sounding reference signal (PUSCH / SRS). If the base station sets the MG for the terminal at the time of receiving an SSB, the terminal may typically have an MG interval every 20ms, and each MG interval may have a length of 1 to 5ms. If there is a 5ms MG interval every 20ms, the terminal may not be able to perform PUCCH / PUSCH / SRS transmission or PDCCH / PDSCH / CSI-RS reception for 5ms every 20ms, which may affect the availability of the terminal.

[0089] On the other hand, when using latency-sensitive XR (eXtended Reality) services, the unschedulable intervals caused by MG can lead to greater problems. For example, a terminal that has been granted semi-persistent scheduling (SPS) or configured grant (CG) radio resources from a base station to receive or transmit periodic sensor information may be unable to perform SPS / CG transmission if the MG interval overlaps with the SPS / CG transmission opportunity. For instance, the settings or measurement gap settings that cause scheduling limitations can be very diverse, and an operation that causes the terminal to skip or cancel one of these based on the time it receives control information from the base station can cause unnecessary complexity.

[0090] Considering these points, the operation between a terminal and a base station that allows transmission on the MG according to certain criteria can be considered. This control can be achieved through the DCI on the PDCCH. Meanwhile, sufficient time may be required depending on the capabilities of the terminal from the time the DCI is received until the point at which the terminal operation is controlled on the MG. For example, the DCI controlling the terminal operation on the MG needs to be transmitted to the terminal at a sufficiently early time, which can make it difficult for the base station to predict the terminal's state on the actual MG and the scheduling to be instructed to that terminal. Therefore, the DCI controlling the terminal operation on the MG needs to correspond to various terminal states on the actual MG, while a method capable of operating independently of various terminal states may be required.

[0091] In addition, specific measures may be required regarding how to transmit gap / restriction skipping messages along with the DCI format used for scheduling. For example, since some gaps / restrictions can be cell-specific or frequency-range-specific, a DCI format design that takes this into account may be required. Furthermore, from the perspective of the base station, the process of verifying whether the terminal has properly received the gap skip / cancel indication may also be important. This is because time intervals such as measurement gaps or SMTC (SSB measurement timing) windows that restrict transmission / reception are generally maintained for a long period of several milliseconds, so the reliability of scheduling for several milliseconds may be determined by relying on the reliability of a single gap skip / cancel indication.

[0092] In this disclosure, for convenience of explanation, examples are provided based on an NR system, but the proposed methods are not limited to a specific NR transmission and reception type unless otherwise stated. In addition, in this disclosure, for convenience of explanation, examples are provided based on the characteristics and structure of an XR service, but the proposed methods are not limited to support an XR service unless otherwise stated. Therefore, it is obvious that the methods proposed in this disclosure can be applied to all wireless communication transmission and reception structures and services without further explanation.

[0093] In the present disclosure, MG may refer not only to an MG for inter-cell measurement, but also to an SMTC (SSB measurement timing) setting configured for intra-cell / intra-frequency measurement, a time window setting that causes scheduling limitations, etc. For example, MG may include at least one of the following intervals:

[0094] - Measurement gaps in NR inter / intra-frequency RRM measurement

[0095] - Measurement gaps in inter-RAT RRM measurement

[0096] - Scheduling restriction in NR inter / intra-frequency RRM measurement without measurement gap

[0097] - Scheduling restriction in L1-RSRP measurement for reporting

[0098] - RLM (radio link monitoring) measurement

[0099] - Beam failure detection measurements

[0100] - A network controlled small gap (NCSG) where there are two interruptions in each NCSG occasion and scheduling restrictions apply during the measurement length (ML) of the NCSG occasion

[0101] - Multi-universal subscriber identity module (MUSIM) gaps resulting from one or more per-UE MUSIM gap patterns and used for MUSIM purpose

[0102] - UL gaps for Tx power management, applicable only for NR FR2

[0103] In the present disclosure, a terminal may receive a cell-in-cell or cell-to-cell measurement gap (MG) from a base station, and the terminal may periodically perform measurements on an adjacent cell or a currently serving cell on the MG for purposes such as RRM. In this case, a method for controlling transmission / reception and measurement operations on the MG and an apparatus supporting the same are proposed through signaling that controls the above, when the terminal is instructed or set by the base station to transmit or receive one or more schedulings for XR services on the MG, or when transmission or reception is allowed on a specific MG and, if necessary, measurement operations on a specific MG are prevented.

[0104] In the present disclosure, gap / limit skipping messages may be transmitted along with the DCI format used for scheduling. To this end, specific methods such as the following may be proposed. For example, the DCI format may be designed considering cell-specific or frequency-range-specific gaps / limits. For example, a gap skip / cancel indicator may be set for a specific cell or frequency range, and accordingly, a 1-bit gap / skip indicator may be included in the DCI format for scheduling radio resources for that cell or frequency range. For example, in the case of cell-common or FR (frequency range)-common, a single gap / limit indicator setting may be given for all cells and / or FRs. For example, in the case of a feedback mechanism for a gap skipping instruction, a 1-bit HARQ-ACK bit corresponding to each K1 of the Type-1 HARQ-ACK feedback can be generated to indicate whether a gap skip / cancel instruction has been received, so that the base station can verify whether the terminal has received a gap skip / cancel instruction. For example, Table 3 shows an example of the DCI format.

[0105] DCI 포맷용법0_0Scheduling of PUSCH in one cell0_1Scheduling of one or multiple PUSCH in one cell, or indicating downlink feedback information for configured grant PUSCH (CG-DFI)0_2Scheduling of PUSCH in one cell0_3Scheduling of one PUSCH in one cell, or multiple PUSCHs in multiple cells with one PUSCH per cell1_0Scheduling of PDSCH in one cell1_1Scheduling of one or multiple PDSCH in one cell, and / or triggering one shot HARQ-ACK codebook feedback1_2Scheduling of PDSCH in one cell1_3Scheduling of one PDSCH in one cell, or multiple PDSCHs in multiple cells with one PDSCH per cell2_0Notifying a group of UEs of the slot format, available RB sets,COT duration and search space set group switching2_1Notifying a group of UEs of the PRB(s) and OFDM symbol(s) where UE may assume no transmission is intended for the UE2_2Transmission of TPC commands for PUCCH and PUSCH2_3Transmission of a group of TPC commands for SRS transmissions by one or more UEs2_4Notifying a group of UEs of the PRB(s) and OFDM symbol(s) where UE cancels the corresponding UL transmission from the UE2_5Notifying the availability of soft resources2_6Notifying the power saving information outside DRX Active Time for one or more UEs2_7Notifying paging early indication and TRS availability indication for one or more UEs2_8Notifying the aperiodic beam indication and associated time resources2_9Activating or de-activating the cell DTX and / or DRX configuration of one or multiple serving cells for one or more UEs,and / or for providing NES-mode indication of the primary cell for one or more UEs3_0Scheduling of NR sidelink in one cell3_1Scheduling of LTE sidelink in one cell3_2Scheduling of NR SL PRS in one cell4_0Scheduling of PDSCH with CRC scrambled by MCCH-RNTI / G-RNTI for broadcast or by Multicast MCCH-RNTI for multicast in RRC_INACITIVE state4_1Scheduling of PDSCH with CRC scrambled by G-RNTI / G-CS-RNTI for multicast in RRC_CONNECTED state or by G-RNTI for multicast in RRC_INACITIVE state4_2Scheduling of PDSCH with CRC scrambled by G-RNTI / G-CS-RNTI for multicast in RRC_CONNECTED state,

[0106] For example, to this end, the proposed method may include a method in which a base station allocates PDSCH / PUSCH radio resources to a terminal, a method in which the terminal performs downlink reception and uplink transmission on the allocated radio resources, a method in which a HARQ-ACK PUCCH response regarding the PDSCH reception result is transmitted, and a method in which the base station's retransmission DCI is received via PDCCH after PUSCH transmission. Additionally, for example, the proposed method may include a process in which the terminal transmits a signal and channel to indicate its capabilities and / or service requirements, and the base station receives them.

[0107] For example, the terminal may receive MG intervals for RRM, etc., from the base station via RRC signaling. In this case, for example, a shared measurement gap index may be set together with the RRC information element (IE) that sets each MG interval. For example, such an index may be set for at least one of the following scheduling limit setting or measurement gap setting. For example, each set index may be unique within the following scheduling limit setting or measurement gap setting. For example, a shared measurement gap index sharing a single domain may be added to each setting regardless of the type of scheduling limit setting or measurement gap setting that can be set via RRC signaling. Alternatively, for example, a gap skipping indicator may be applied to all or part of the following scheduling limit setting or measurement gap setting without setting a separate index.

[0108] - Measurement gaps in NR inter / intra-frequency RRM measurement

[0109] - Measurement gaps in inter-RAT RRM measurement

[0110] - Scheduling restriction in NR inter / intra-frequency RRM measurement without measurement gap

[0111] - Scheduling restriction in L1-RSRP measurement for reporting

[0112] - NCSG where there are two interruptions in each NCSG occasion and scheduling restrictions apply during ML of the NCSG occasion

[0113] - MUSIM gaps resulting from one or more per-UE MUSIM gap patterns and used for MUSIM purpose

[0114] In addition, for example, the terminal may receive a scheduling message or SPS / CG setting for PDSCH reception or PUSCH transmission from the base station during the MG interval.

[0115] For example, a terminal may receive signaling via a PDCCH, MAC-CE (control element), or RRC message that allows reception / transmission on an MG section and, if necessary, prevents measurement. For example, if the terminal receives signaling via a PDCCH, MAC-CE, or RRC message that allows reception / transmission on an MG section, based on the contents included in the signaling and the proposed method, continuous reception / transmission may be allowed in all or part of a specific MG section, or reception / transmission may be allowed in all or part of a nearby MG section. Additionally, for example, measurement operations by the terminal may be prevented on the relevant MG section.

[0116] The method proposed in this disclosure may be applied by selecting some of the following methods. For example, each method may operate independently without separate combination, or one or more methods may operate in a combined and linked form. Some terms, symbols, sequences, etc. used for illustrative purposes may be replaced with other terms, symbols, sequences, etc., as long as the proposed principles are maintained.

[0117] The method proposed in this disclosure may be applied only when the terminal receives relevant configuration information from a base station (or core network), wherein a higher layer signal (e.g., SIB or RRC signaling) may be used for said configuration information, or a method in which activation / deactivation is indicated through separate signaling (e.g., DCI or MAC signaling) for the configured information may be used in conjunction. Additionally, for example, the terminal may report information (e.g., capability) regarding the supportability of the proposed method, and the base station (or core network) may be configured to receive this information.

[0118] 1. Proposal 1: DCI Format for Measurement Gap Control

[0119] For example, to control terminal operation on the MG, the base station may transmit to the terminal a terminal operation indicator field and / or a gap skipping indicator on the MG as fields in DCI format. For example, this may be in the form of fields added to the existing DCI format 0_0, 0_1, 0_2, 1_0, 1_1, 1_2, and for a group configured as a group-common DCI, the DCI fields proposed below may be repeated one or more times in succession.

[0120] For example, the DCI format may include at least one of the following fields:

[0121] (1) Gap skipping indicator: For example, this can have the following values ​​with 1 bit of information.

[0122] - "On" (bit value 0): For example, uplink transmission and downlink reception may be suspended during the corresponding MG / limit section, and a measurement operation may be performed. Or, for example, the terminal may perform an operation (such as a measurement) under the assumption that there is no scheduling / instruction for uplink transmission and downlink reception during the corresponding MG / limit section, as before.

[0123] - "Cancel / Skip" (bit value 1): For example, the measurement operation may be omitted in the corresponding MG / limit period, and uplink transmission and downlink reception may be performed normally (as if there were no MG or scheduling constraints). Or, for example, the terminal may expect / monitor scheduling / instructions for uplink transmission and downlink reception in the corresponding MG / limit period (omitting the measurement operation).

[0124] For example, the corresponding MG / limit interval may be the first gap / limit opportunity after the minimum time offset T1 required between the last symbol of the PDCCH carrying the DCI format and the start of the corresponding skipped gap / limit opportunity indicated by the DCI.

[0125] Or, for example, contrary to the above, a bit value 0 may indicate the "cancel / skip" operation, and a bit value 1 may indicate the "on" operation.

[0126] (2) Terminal operation application time field: For example, this may be an (optional) field for detailed settings for transmission / reception on the MG.

[0127] - T1 (optional): For example, this may be the symbol length from the PDCCH where the DCI format is transmitted to the first point in time (start of MG / limit period) where the terminal operation instruction is applied. For example, this may be the time it takes for the terminal to receive and process the MG control message. Or, for example, the operation indicated by the "terminal operation instruction field" may be applied / executed from the nearest MG / limit period including / after the time indicated by the T1 field.

[0128] - T2 (optional): For example, this is the length of the time interval to which the terminal operation instruction is applied, and may indicate the number of symbols / slots / subframes or the number of MGs to which the terminal operation instruction is applied.

[0129] For example, based on the gap skipping indicator value included in the DCI format and the time of reception, the terminal may apply the indicated terminal action to the corresponding MG interval or scheduling limit. For example, a cancel / skip indicator may be applied to the first corresponding MG after a certain time T1 from the last symbol of the PDCCH in which the DCI format was received. For example, a cancel / skip indicator may be applied to the MG during T2 after a certain time T1 from the last symbol of the PDCCH in which the DCI format was received. For example, it may be applied to all corresponding MGs after a certain time T1 from the last symbol of the PDCCH in which the DCI format was received until the terminal action instruction is instructed again.

[0130] For example, in the case of a periodically occurring MG, the base station can update control information every cycle by transmitting the DCI format at the start of the MG.

[0131] For example, in each example, T1 and / or T2 may be indicated via the DCI format as described above, set via upper layer signaling, be predefined values, or be values ​​reported via the terminal's capability report. For example, T1 and T2 may be jointly coded and transmitted through a single field.

[0132] For example, by dynamically transmitting MG control information through the DCI format, the terminal can quickly apply MG intervals or scheduling restrictions.

[0133] For example, in the above DCI format field configuration, the 1-bit terminal operation instruction field can be replaced with an N-bit terminal operation instruction field to support slot-unit control within the MG section. For example, each bit within the terminal operation instruction field can be used to indicate each slot within the corresponding section rather than the entire MG section. For example, if the MG section consists of multiple slots, each bit within the terminal operation instruction field can indicate whether to cancel or skip an individual slot within the MG section. In this case, for example, N can be set to be equal to or greater than the number of slots constituting the MG section.

[0134] For example, in the above DCI format field configuration, an N-bit cancel / skip indicator can be used instead of a 1-bit terminal operation indicator field to indicate the operation status for consecutive slots or MG intervals. For example, if 0 is indicated, consecutive slots or MG intervals may be in an "on" state, and if a non-zero value is indicated, consecutive slots or MG intervals corresponding to the indicated value may be in a "cancel / skip" state. Through this, for example, it may be possible to perform measurement operations or restrict transmission / reception only for some consecutive slots within an MG interval.

[0135] Through this, for example, the base station can more finely control measurement operations and transmission / reception operations on a slot basis even within the MG interval. For example, the value of N can be a predefined value or can be set through upper layer signaling.

[0136] 2. Proposal 2: Cell-specific and frequency range-specific gap skip / cancel indicators

[0137] For example, the base station can set a gap skip / cancel indicator in a cell-specific or frequency range-specific way. This allows MG control to be performed flexibly, for example, depending on the network configuration.

[0138] For example, the base station can set whether to use gap skip / cancel indicators per cell or per frequency range through upper layer signaling.

[0139] For example, in the case of a cell-specific setting, a 1-bit gap / skipping indicator may be included in the DCI format received from the set cell. In this case, for example, the gap / skipping indicator may be included in all DCI formats or only in the DCI format that schedules the radio resources of the cell. For example, in the case of a DCI format containing a cell indicator, the gap skip / skipping indicator may be included in the DCI format only if the gap skip / skipping indicator is set in the indicated cell, or the gap skip / skipping indicator may be included in the DCI format if the gap skip / skipping indicator is set in at least one of the cells that can be indicated.

[0140] For example, a base station may set a gap skip / cancel indicator for a specific cell. For example, whether a gap skip / cancel indicator is used on a per-cell basis may be set via upper-layer signaling (e.g., RRC signaling). For example, in the case of a DCI format configuration, a) all DCI formats received in the configured cell may contain a 1-bit gap / skipping indicator, and / or b) a DCI format scheduling radio resources of the configured cell may contain a 1-bit gap / skipping indicator. For example, in the case of a DCI format containing a cell indicator, a) the DCI format may contain a gap skip / cancel indicator only if the gap skip / cancel indicator is set for the indicated cell, and / or b) the DCI format may contain a gap skip / cancel indicator if the gap skip / cancel indicator is set for at least one of the cells that can be indicated.

[0141] For example, in the case of terminal operation, the terminal can store cell-specific gap skip / cancel indicator setting information received through upper-layer signaling. For example, upon receiving a DCI format, the terminal can check the settings of the cell associated with the DCI. For example, if the DCI is for a configured cell, the terminal can interpret the gap / skipping indicator bits to determine the operation in the corresponding MG / limit section. For example, if the DCI is for an unconfigured cell, the terminal can ignore the gap / skipping indicator bits and perform the existing MG / limit section operation.

[0142] For example, in the case of a specific FR (frequency range) setting, a 1-bit gap / skipping indicator may be included in the DCI format for scheduling the wireless resources of the cell corresponding to the set FR, or in the DCI format received by the cell of that FR. For example, if set for multiple FRs, the DCI format may include a bit indicating a gap skip / cancel for each FR.

[0143] For example, a base station may set a gap skip / cancel indicator for a specific frequency range. For example, whether a gap skip / cancel indicator is used per FR may be set through upper-layer signaling. For example, in the case of a DCI format configuration, a) a 1-bit gap / skipping indicator may be included in the DCI format scheduling the radio resources of the cell corresponding to the set FR, and / or b) a 1-bit gap / skipping indicator may be included in the DCI format received by the cell corresponding to the set FR. For example, if set for multiple FRs, the DCI format may include a bit indicating a gap skip / cancel for each FR (e.g., a 2-bit gap skip / cancel indicator if set for FR1 and FR2 respectively).

[0144] For example, in the case of terminal operation, the terminal can store gap skip / cancel indicator setting information for each FR received through upper-layer signaling. For example, upon receiving a DCI format, the terminal can check the settings of the FR associated with the corresponding DCI. For example, if it is a DCI for a configured FR, the terminal can interpret the gap / skipping indicator bit(s) to determine the operation in the corresponding MG / limit interval. For example, if it is configured for multiple FRs, the terminal can interpret the bits corresponding to each FR individually to perform different MG / limit interval operations for each FR.

[0145] For example, cell-common or FR-common settings are also possible, in which case a single gap / limit indicator setting may be applied to all cells and / or FRs. For example, if this setting is applied, the terminal may apply the same gap skip / cancel rule regardless of the cell or FR. For example, the gap / limit indicator setting may be configured to be agnostic to the cell or FR. For example, a single gap / limit indicator setting may be provided for all cells and / or FRs through upper-layer signaling. For example, if configured, a 1-bit gap / limit indicator may be included in all DCI formats that may include a gap skip / cancel indicator.

[0146] For example, when this setting is applied, the terminal can apply the same gap skip / cancel rule regardless of cell or FR. For example, the terminal can store cell-common or FR-common gap skip / cancel indicator setting information received through upper layer signaling, and the terminal can interpret the gap / skipping indicator bit upon receiving any DCI format, and the terminal can determine the operation in the corresponding MG / limit section by applying the same gap skip / cancel rule regardless of cell or FR.

[0147] 3. Proposal 3: Feedback on the Gap Skipping Indicator

[0148] For example, a feedback mechanism may be proposed that allows a base station to check whether a terminal has received a gap skip / cancel indicator. Through this, for example, the base station can accurately determine the reception status of the terminal's gap skip / cancel indicator, and efficient scheduling and resource management can be performed. For example, to enable a base station to check whether a terminal has received a gap skip / cancel indicator, the following feedback mechanism may be introduced.

[0149] (1) Method 3-1: Method using Type-1 HARQ-ACK feedback

[0150] For example, in a method using Type-1 HARQ-ACK feedback, the terminal may include in the Type-1 HARQ-ACK feedback whether it has received a 1-bit gap skip / cancel indicator corresponding to each K1. For example, the base station can check whether the terminal has received a gap skip / cancel indicator through this, and can adjust future scheduling and gap skip / cancel indicator transmission strategies.

[0151] For example, in the case of terminal operation, a) the terminal may include in the type-1 HARQ-ACK feedback whether a 1-bit gap skip / cancel indicator corresponding to each K1 has been received, and / or b) when generating the HARQ-ACK codebook, the terminal may add a bit indicating whether a gap skip / cancel indicator has been received along with the HARQ-ACK bit for the existing PDSCH transmission. For example, if K1=1,2,3,4, four additional bits may be included in the HARQ-ACK codebook.

[0152] For example, in the case of base station operation, a) upon receiving Type-1 HARQ-ACK feedback, the base station can check whether the terminal has received a gap skip / cancel indicator through the added bit, and / or b) the base station can adjust future scheduling and gap skip / cancel indicator transmission strategies depending on whether it has received.

[0153] (2) Method 3-2: Method allowing schedule-less indications

[0154] For example, in a method that allows unscheduled indicators, a base station may transmit only gap skip / cancel indicators without scheduling by using specific code points in some fields of the DCI format. For example, a terminal may receive this and feed back a HARQ-ACK bit indicating whether the gap skip / cancel indicator has been received by using TDRA (time domain resource allocation) information and K1 information or DAI (downlink assignment index) information.

[0155] For example, in the case of base station operation, a) the base station may transmit only gap skip / cancel indicators without scheduling by using specific code points in some fields of the DCI format, and / or b) the base station may request feedback on the gap skip / cancel indicators using TDRA information and K1 information or DAI information.

[0156] For example, in the case of terminal operation, a) when receiving a non-scheduled DCI, the terminal can identify a gap skip / cancel indicator, and / or b) the terminal can use TDRA information and K1 information or DAI information to generate a HARQ-ACK bit in a Type-1 or Type-2 HARQ-ACK codebook indicating whether a gap skip / cancel indicator has been received, and / or c) the terminal can feed back the generated HARQ-ACK bit to the base station.

[0157] (3) Method 3-3: Introduction of a new UCI (uplink control information) format

[0158] For example, in the method for introducing a new uplink control information (UCI) format, a new UCI format may be defined for reporting whether a gap skip / cancel indicator has been received. For example, the terminal may transmit this UCI via PUCCH, and the UCI may be transmitted at a different time than the existing HARQ-ACK or CSI report.

[0159] For example, in the case of base station operation, a) a new UCI format for reporting whether a gap skip / cancel indicator has been received may be defined, and / or b) the base station may notify the terminal by setting the transmission time and period of this UCI.

[0160] For example, in the case of terminal operation, a) the terminal may report receipt using a new UCI format upon receiving a gap skip / cancel indicator, and / or b) the terminal may transmit this UCI via PUCCH, and said UCI may be transmitted at a different time than the existing HARQ-ACK or CSI report.

[0161] (4) Method 3-4: Method using MAC CE (control element)

[0162] For example, in a method using a MAC CE (control element), a MAC CE format for reporting whether a gap skip / cancel indicator has been received may be defined. For example, when there is an opportunity to transmit uplink data, the terminal may report whether a gap skip / cancel indicator has been received via the MAC CE.

[0163] For example, in the case of base station operation, a) a MAC CE format for reporting whether a gap skip / cancel indicator has been received may be defined.

[0164] For example, in the case of terminal operation, a) the terminal may report via MAC CE whether it has received a gap skip / cancel indicator when there is an opportunity to transmit uplink data, and / or b) the terminal may report whether it has received multiple gap skip / cancel indicators at once.

[0165] (5) Method 3-5: Implicit feedback mechanism

[0166] For example, in an implicit feedback mechanism, if a terminal successfully receives a gap skip / cancel indicator, the terminal can operate normally according to the base station's scheduling in the corresponding MG or scheduling restriction period. For example, the base station can indirectly check whether a gap skip / cancel indicator has been received by observing the terminal's operation.

[0167] For example, in the case of terminal operation, a) if a gap skip / cancel indicator is successfully received, the terminal can operate normally according to the base station's scheduling in the corresponding MG or scheduling restriction period.

[0168] For example, in the case of base station operation, a) the base station may observe the operation of the terminal in the MG or scheduling limit period, and / or b) if the terminal operates normally, the base station may consider that a gap skip / cancel indicator has been successfully received.

[0169] For example, through this feedback mechanism, the base station can accurately determine the reception status of the terminal's gap skip / cancel indicator and, based on this, perform efficient scheduling and resource management. In addition, it can improve the reliability of scheduling for long time intervals, such as MG or SMTC windows that last for several milliseconds.

[0170] 4. Proposal 4: Handling of Measurement Gap Cancellation Indication

[0171] For example, an effective processing method for a 1-bit MG-CI (measurement gap-cancellation indication) can be proposed. For example, this can enable consistent and efficient MG control in situations where multiple indicators may occur.

[0172] (1) Method 4-1: Applying Time-Based Priority

[0173] For example, regarding gap skip / cancel indicators transmitted via DCI format, the last received indicator from the start of the corresponding MG / limit interval up to a specific point in time T1 may be applied preferentially. For example, according to this method, MG control can be flexibly adjusted according to changes in network conditions. For example, such operation may be applied according to cell-specific or frequency range-specific settings mentioned in Proposal 2. For example, if MG is set per FR, the MG of FR2 may still be maintained even if the MG in FR1 is canceled.

[0174] (2) Method 4-1: Consistent indicator transmission

[0175] For example, a base station can consistently maintain a gap skip / cancel indicator value transmitted once throughout the corresponding MG period. For example, this can be applied during the T2 period mentioned in Proposal 1, and can enable consistent interpretation even if duplicate indicators occur. For example, this method can eliminate ambiguity in indicator interpretation and increase the stability of the system.

[0176] (3) Method 4-2: Allow unidirectional switching

[0177] For example, similar to UTO-UCI (uplink transmission occasion - uplink control information), only the transition from "on" to "cancel / skip" may be allowed, and the reverse direction may not be allowed. For example, this approach can ensure consistency in MG / limit interval control and prevent unnecessary resumption of measurement. For example, this can also be applied according to the cell-specific or FR-specific settings mentioned in Proposal 2. For example, this operation may also be applied limited to indicators received from the start of the corresponding MG / limit interval up to a specific time point T1, as in Method 4-1.

[0178] (4) Method 4-3: Linkage with Feedback Mechanisms

[0179] For example, by utilizing the feedback mechanism introduced in Proposal 3, the base station can check the terminal's gap skip / cancel indicator reception status and adjust the indicator transmission strategy based on this. For example, if it is confirmed through Type-1 HARQ-ACK feedback that the terminal did not receive the indicator, the base station can retransmit the indicator.

[0180] (5) Method 4-4: Integration with Slot Level Control

[0181] For example, when controlling gap skip / cancellation on a slot-by-slot basis within an MG interval using the N-bit terminal operation instruction field mentioned in Proposal 1, the processing method of the present proposal can be applied individually to each slot. Through this, for example, more fine-grained MG control can be achieved.

[0182] For example, these measures can be used individually or in combination and can be applied selectively depending on the network configuration and operational policies. For example, time-based priority and unidirectional switching allowance can be used in combination. Through this, for example, the network can ensure consistency and stability while maintaining the flexibility of MG control.

[0183] This proposal can enhance the reliability of MG control in complex network environments and provide the ability to respond to various scenarios. This can improve the quality of XR services and enable the efficient use of network resources, thereby contributing to the improvement of overall system performance.

[0184] 5. Proposal 5: Considerations When Selecting Gaps / Constraints

[0185] For example, given multiple MG-CIs, for consistent behavior, it is necessary to consider gaps / limitations assuming that no other MG-CIs are applied when determining which gaps / limits are to be applied by an MG-CI. For example, this may be intended to ensure independent processing of each MG-CI and maintain predictable behavior. Specifically, for example, whenever a terminal receives each MG-CI, it may evaluate the impact of that MG-CI based on the original gap / limit configuration, e.g., determine which gaps / limits to be canceled by that MG-CI. For example, by doing so, even if there are gaps / limits that have already been canceled due to a previously received MG-CI, such cancellations may not be considered when determining which to apply to the new MG-CI. For example, this approach can eliminate interdependencies between MG-CIs and allow the intent of each MG-CI to be accurately reflected. In addition, for example, this eliminates the need for the network to consider the state of other MG-CIs when transmitting an MG-CI, thereby reducing signaling complexity and increasing the flexibility of network operations. Consequently, this approach can improve system stability and performance in multi-MG-CI scenarios. Specifically, the proposed technology may have the following features.

[0186] (1) Method for determining the scope of MG-CI application

[0187] For example, whenever the terminal receives each MG-CI, it may evaluate the impact of the MG-CI based on the original gap / limit configuration. For example, even if there is a gap / limit that has already been canceled due to a previously received MG-CI, such cancellation may not be considered when determining the target of the new MG-CI.

[0188] (2) Guarantee of independence between MG and CI

[0189] For example, each MG-CI is processed independently and may not be affected by other MG-CIs. For example, this can eliminate interdependence between MG-CIs and allow each MG-CI to accurately reflect its intent.

[0190] (3) Reduction in network signaling complexity

[0191] For example, when a network transmits an MG-CI, it may not need to consider the state of other MG-CIs. For example, this can reduce signaling complexity and improve the flexibility of network operations.

[0192] (4) MG-CI Processing Procedure

[0193] a) The terminal can receive MG-CI.

[0194] b) The terminal can refer to the original gap / limitation configuration.

[0195] c) The terminal can determine the gap / limit to be canceled based on the received MG-CI.

[0196] d) The terminal can apply MG-CI to the determined gap / limit.

[0197] e) The terminal may repeat the above process upon receiving the next MG-CI.

[0198] (5) Collision resolution mechanism

[0199] For example, if conflicting MG-CIs are received for the same gap / limit, the most recently (i.e., last) received MG-CI may be applied preferentially. Or, for example, the last received MG-CI prior to MG-CI processing time T from the relevant gap / limit may be applied preferentially. For example, this operation may be limited to the transition from "on" to "cancel / skip" and the reverse direction may not be allowed.

[0200] (6) Timing considerations

[0201] For example, the validity period of the MG-CI can be set so that the MG-CI automatically expires after a certain period of time.

[0202] 6. Proposal 6: MG-CI Handling Method During Multi-Cell / Carrier Operation

[0203] For example, for convenience, a message that cancels a gap / limit configured for a terminal, such as a gap skipping indicator, may be hereinafter referred to as MG-CI (measurement gap-cancel indication). As described above, for example, the terminal may determine the location of the gap / limit to be canceled by considering the processing time upon receiving the MG-CI. For example, from the last symbol of the PDCCH containing the MG-CI, the terminal may consider the time T required to cancel the measurement at the gap / limit and perform the scheduled transmission. For example, the terminal may cancel the gap / limit after T from the last symbol of the PDCCH that received the MG-CI. For example, in accordance with the instructions of the MG-CI, the terminal may cancel all or part of the nearest gap / limit after T, use a separate value of T, or cancel all or part of the gap / limit located in a specific symbol / slot / time interval.

[0204] For example, the gap / limit settings of a terminal may vary from cell to cell. Therefore, for example, the gap / limit after time T, when the terminal receives an MG-CI message, may vary depending on the terminal's current transmitting / receiving cell. Meanwhile, if T is a relatively long time, the terminal's transmitting / receiving cell may change during time T after receiving the MG-CI message. In this case, the application of the previous MG-CI message may become ambiguous. To resolve this issue, the terminal's behavior upon receiving an MG-CI message can be considered as follows.

[0205] (1) Alternative 1: The terminal can apply the MG-CI message based on the PDCCH that received the message. For example, the terminal can cancel the gap / limit configured to be measured or applied based on the cell (scheduling cell) that received the PDCCH.

[0206] (2) Alternative 2: The terminal may apply the MG-CI message based on the PDSCH / PUSCH scheduled with the message or based on the scheduled cell. For example, the terminal may cancel the gap / limit configured so that the PDCCH is measured or applied based on the scheduled cell that schedules the PDSCH / PUSCH.

[0207] (3) Alternative 3: As described above, MG-CIs may be transmitted per cell. For example, a terminal may receive MG-CIs per cell, and the terminal may cancel a gap / limit configured to be measured or applied in the cell where each MG-CI is received. In this case, for example, multiple MG-CIs may direct a single gap / limit cancellation. In this case, for example, if at least one MG-CI directs a specific gap / limit cancellation, the gap / limit may be canceled.

[0208] (4) Alternative 4: (Priority-based application) The terminal can apply MG-CI messages according to predefined priorities. For example, priorities can be assigned in the order of PCell > PSCell > SCell, and the terminal can cancel the configured gap / restriction for the cell with the highest priority. For example, this method can allow consideration of importance between cells.

[0209] (5) Alternative 5: (Including dynamic cell indicators) A field explicitly indicating the target cell may be added to the MG-CI message. This allows, for example, the network to selectively cancel the gap / restriction of a specific cell, and reduces ambiguity in terminal interpretation.

[0210] (6) Alternative 6: (Time window-based application) The MG-CI message may include valid time window information. For example, the terminal can cancel the gap / limit for all cells active during this time window. For example, this method can provide flexibility in cell change scenarios.

[0211] (7) Alternative 7: (Group-based application) Cells can be organized into predefined groups, and MG-CI messages can clear gaps / restrictions for all cells belonging to a specific group. For example, this method can enable the efficient application of MG-CI to multiple cells.

[0212] (8) Alternative 8: (Gap / Restriction Group-Based Application) Gaps / restrictions can be organized into predefined groups, and an MG-CI message can cancel all gaps / restrictions belonging to a specific group regardless of the cell. For example, the details of this method may be as follows.

[0213] a) For example, a network can configure gap / restriction groups for terminals through RRC signaling. For example, each group can have a unique identifier.

[0214] b) For example, one group may contain multiple gaps / limitations, and these may belong to the same or different cells.

[0215] c) For example, the MG-CI message may include the identifier of the gap / restriction group to be canceled.

[0216] d) For example, when the terminal receives an MG-CI message, it can cancel all gaps / restrictions belonging to a specified group.

[0217] For example, through this method, the network can efficiently cancel multiple related gaps / limitations at once, and signaling overhead can be reduced.

[0218] In addition, for example, this method can enable gaps / limitations to be grouped and managed according to specific scenarios or service types.

[0219] (9) Alternative 8-1: (Gap / Restriction Group-Based Application) Gaps / restrictions can be organized into predefined groups, and MG-CI messages can be configured to cancel all gaps / restrictions belonging to a specific group regardless of the cell. For example, the details of this method may be as follows.

[0220] a) For example, the network can configure a gap / restrict group for the terminal through RRC signaling. For example, the group may be a gap / restrict group to which MG-CI messages are applied.

[0221] b) For example, one group may contain multiple gaps / limitations, and these may belong to the same or different cells.

[0222] c) For example, the MG-CI message is transmitted in a specific cell, but the gap cancellation action indicated by the message can be applied to gaps in all cells.

[0223] d) For example, when the terminal receives an MG-CI message, it can select a gap to be cancelled from among all gaps / limits belonging to the configured group regardless of the receiving cell.

[0224] e) For example, the following methods can be considered for gap selection criteria. For example, two or more of the methods below may be used in combination.

[0225] - Chronological order: Cancel the gap closest to the time after receiving MG-CI.

[0226] - Priority: Cancel according to predefined gap priority (e.g., inter-frequency gap > intra-frequency gap)

[0227] For example, through this method, the network can efficiently cancel multiple related gaps / limitations at once, and signaling overhead can be reduced.

[0228] In addition, for example, this method can enable gaps / limitations to be grouped and managed according to specific scenarios or service types.

[0229] (10) Alternative 9: (Cell-agnostic gap cancellation method) When an MG-CI is received in a specific cell, the gap may be selected and canceled regardless of the cell in which the MG-CI was received or the cell scheduled by the PDCCH that received the MG-CI. For example, the details of this method may be as follows.

[0230] a) For example, the network can enable the cell-agnostic gap cancellation function to the terminal through RRC signaling.

[0231] b) For example, the MG-CI message is transmitted in a specific cell, but the gap cancellation action indicated by the message can be applied to gaps in all cells.

[0232] c) For example, when the terminal receives an MG-CI message, it can select a gap to be canceled from among all gaps set regardless of the receiving cell.

[0233] d) For example, the following methods can be considered for gap selection criteria. For example, two or more of the methods below may be used in combination.

[0234] - Chronological order: Cancel the gap closest to the time after receiving MG-CI.

[0235] - Priority: Cancel according to predefined gap priority (e.g., inter-frequency gap > intra-frequency gap)

[0236] For example, through this method, the network can efficiently cancel gaps without complex per-cell gap management. In addition, for example, this method can guarantee consistent gap cancellation behavior even in situations involving inter-cell handover or cell change. For example, a terminal can apply this cell-agnostic cancellation behavior for a specific time (e.g., T ms) or for a specific number of gaps after receiving MG-CI.

[0237] Additionally, for example, in particular in Alternative 1 or Alternative 2, when a terminal receives an MG-CI message, the terminal can be expected to perform transmission / reception in that cell at the time of canceling the gap / limit configured to be measured in the cell determined at the time of reception. For example, if a terminal receives an MG-CI in a PCell and is instructed to cancel the gap after T ms, the terminal can be expected to perform transmission / reception in the PCell after T ms.

[0238] Meanwhile, terminal operation from the perspective that the terminal is not expected to fail to perform transmission / reception in the cell can be considered as follows.

[0239] - The terminal may consider it normal operation even if there is no transmission / reception from the cell at time T ms after receiving MG-CI.

[0240] - The terminal can continuously monitor the PDCCH of the cell during the gap / limit canceled by MG-CI.

[0241] - Even if there is no transmission / reception in the cell for a certain period of time (e.g., W ms) after time T ms, the terminal may maintain additional gap / limit cancellation.

[0242] - Even if the terminal switches to another cell after receiving MG-CI, it can continue to apply the originally instructed gap / limit cancellation.

[0243] For example, base station operation in terms of the base station guaranteeing such operation to the terminal can be considered as follows.

[0244] - When the base station transmits MG-CI, it may perform transmission only when there is a high probability that it will schedule transmission / reception to the terminal at that time (after T ms).

[0245] However, even if the base station is unable to schedule actual transmission / reception due to changes in network conditions after MG-CI transmission, it can maintain normal operation without additional signaling.

[0246] - The base station can maximize transmission / reception opportunities by setting a high scheduling priority for the terminal during the gap / limit period canceled by MG-CI.

[0247] - If the base station anticipates that it will be unable to schedule transmission / reception to the terminal after transmitting the MG-CI, the base station may notify the terminal of this through additional MG-CI or other signaling.

[0248] - When a handover or cell reselection occurs after MG-CI transmission, the base station can transmit the relevant information to the target cell to enable the terminal to maintain the gap / limit cancellation state.

[0249] For example, through these terminal and base station operations, the network can ensure predictable terminal behavior while securing flexibility in gap / limit cancellation. For example, this can contribute to the efficient utilization of network resources and the optimization of terminal performance.

[0250] For example, if the cell changes, the following methods may be considered for rolling back the application of MG-CI. For example, rollback trigger conditions may include when the terminal performs a handover from the serving cell to another cell, when cell reselection is performed in the RRC_CONNECTED state, or when transitioning to the RRC_IDLE or RRC_INACTIVE state. For example, in the rollback procedure, if one of the above trigger conditions occurs, the terminal may immediately stop the application of MG-CI and restore all canceled gaps / limits to their original configurations. For example, the restoration point may be when the cell change is completed or when the RRC state transition is completed. For example, in terms of terminal operation, the terminal may save all gap / limit information that was canceled by MG-CI during the cell change or RRC state transition, and the terminal may apply the original gap / limit configuration based on the saved information after the rollback. For example, the terminal may follow the original gaps / limits until it receives a new MG-CI after the rollback. For example, in terms of network operation, when the network detects a cell change of a terminal, it may reset the MG-CI application status for that terminal and assume the original gap / limit configuration in the target cell or new serving cell until a new MG-CI is transmitted to the terminal. For example, if necessary, the network may transmit a new MG-CI immediately after the cell change to reapply the gap / limit cancellation. For example, as an exception, if a gap / limit canceled by the previous MG-CI occurs during the cell change, the terminal may perform that gap / limit, ensuring that ongoing measurements or transmissions are not affected during the rollback process. For example, from a signaling optimization perspective, rollback is performed implicitly and does not require additional signaling, but the network may have the option to transmit an explicit rollback command if necessary.For example, through this rollback method, confusion caused by the application of MG-CI when changing cells can be prevented and stable operation in the new cell can be guaranteed, while maintaining network flexibility and ensuring predictable operation of the terminal. For example, this can be particularly useful in environments where movement between cells is frequent, and it can contribute to the efficient management of network resources and the optimization of terminal performance.

[0251] For example, the present proposed technology can be used in combination with other proposed technologies described above. For instance, as in Proposed Technology 1 or 2, the 1-bit MG-CI included in the DCI can be configured to determine which cell / band / FR the MG is configured for by the base station's upper-layer signaling. For instance, this configuration can be performed separately depending on the DCI format. For instance, separate RRC parameters can be configured for each supported DCI format, and each parameter can determine whether it is an MG-CI field of the DCI format. For instance, these RRC parameters can be configured per cell as described in Proposed Technology 2, and more specifically, the following method can be used.

[0252] For example, an RRC parameter that sets whether an MG-CI field exists for each DCI format can be configured, and whether an MG-CI field exists can be configured for each cell. For example, the length and interpretation method of the MG-CI field within the DCI can be determined by a combination of two RRC parameters. For example, if an MG-CI field is set for cell A configured for a terminal and an MG-CI field is not set for cell B, a 1-bit MG-CI field for cell A can be set in the DCI format where the MG-CI field is set. For example, if an MG-CI field is set for cell B configured for a terminal and an MG-CI field is not set for cell A, a 1-bit MG-CI field for cell B can be set in the DCI format where the MG-CI field is set. For example, if an MG-CI field is set in cell A configured for the terminal and an MG-CI field is also set in cell B, a 2-bit MG-CI field may be set in the DCI format in which the MG-CI field is set, and / or each bit may correspond to each cell in which the MG-CI field is set in the order of cell index. For example, for a cell corresponding to a bit in the MG-CI field, the terminal may cancel all or part of the nearest gap / limit after T in that cell, use a separate T value, or cancel all or part of the gap / limit located in a specific symbol / slot / time interval according to the instruction of the bit.

[0253] For example, an RRC parameter that sets the presence of an MG-CI field for each DCI format and a parameter that sets the target indicated by the MG-CI field may be configured. For example, the two parameters may be represented as a single parameter. For example, the presence of an MG-CI field may be determined by the presence or absence of a parameter that sets the target indicated by the MG-CI field. For example, if a parameter that sets the target indicated by the MG-CI field for a certain format is set, a 1-bit MG-CI field may be configured for that DCI format, and if it is not set, a 1-bit MG-CI field may not be configured for that DCI format. For example, the parameter that sets the target indicated by the MG-CI field may determine how to interpret the MG-CI field of the corresponding DCI format. Specifically, for example, this may be an RRC parameter such as the following. For example, this may indicate which cell among PCell, PSCell, and / or SCell the action associated with the MG-CI field is an action for. For example, this may indicate the cell index to which the action associated with the MG-CI field will be applied. For example, this may indicate whether the action associated with the MG-CI field is the cell to which the DCI was received or the cell to which the DCI is scheduled.

[0254] 7. Proposal 7: Method for Handling Minimum Processing Time During Multi-Cell / Carrier or Cross-Cell / Carrier Scheduling Operations

[0255] As described above, for example, the terminal may determine the location of the gap / limit to be canceled by considering the processing time upon receiving the MG-CI. For example, the terminal may consider the time T required to cancel the measurement at the gap / limit and perform the scheduled transmission from the last symbol of the PDCCH containing the MG-CI. For example, the terminal may cancel the gap / limit after T from the last symbol of the PDCCH that received the MG-CI. For example, in accordance with the instructions of the MG-CI, the terminal may cancel all or part of the nearest gap / limit after T, use a separate value of T, or cancel all or part of the gap / limit located in a specific symbol / slot / time interval.

[0256] For example, considering DCI format 0_3 / 1_3, the base station can simultaneously schedule multiple cells of the terminal through a single DCI. Alternatively, when performing cell / carrier scheduling (e.g., cross-carrier scheduling) using a DCI format such as DCI 0_1 / 1_1, for example, the terminal can perform the following operations by applying Alternative 2 of Proposal 2 and Proposal 6.

[0257] For example, if a gap skip / cancel indicator is set on at least one cell among the cells scheduled together by DCI format 0_3 / 1_3 or the target cells in cross-carrier scheduling, the terminal may assume that the gap skip / cancel indicator may be included in the DCI format 0_3 / 1_3.

[0258] For example, the terminal may apply the MG-CI message based on the cell scheduled with the message or the target cell of cross-carrier scheduling. For example, the terminal may cancel the nearest gap / limit after processing time T among the cells scheduled with the message.

[0259] For example, when performing such operations, if the processing time T differs between the scheduling cells, or if the processing time T differs for each scheduling cell, or if the processing time T is determined by the SCS and it is ambiguous which value to apply, the method for determining the nearest gap / limit after the processing time T may also be ambiguous. To address this, for example, the following method may be proposed.

[0260] For example, the minimum distance between the DCI and the gap may differ in each cell, and this may vary depending on the cell, frequency band (FR), and the terminal's capability per frequency band. For example, the minimum distance between the DCI and the gap may be 5ms in some cells and 3ms in others. For example, this minimum distance may be set for the scheduling flexibility of the base station.

[0261] For example, particularly in the case of DCI formats 1_3 and 0_3, which correspond to multiple cells, or in the case of cross-carrier scheduling, the DCI receiving cell and the target (scheduled) cell may be different. In this case, the nearest gap may vary depending on how the minimum distance T between the DCI and the gap is determined. To address this, for example, the following method may be proposed.

[0262] For example, T can be the largest value among T supported by the DCI receiving cell and the scheduled cell in a group of cells scheduled together (or configured to be concurrently scheduled) through a single DCI or in cross-carrier scheduling. For example, when cells A and B are scheduled together, and T for cell A = 3ms and T for B = 5ms, the nearest gap can be determined based on the gap / limit after 5ms.

[0263] For example, T can be determined based on the cell that received the DCI (the T value to be applied to multiple cells that are concurrently scheduled or can be concurrently scheduled via that DCI). For example, X reported by the terminal can be determined based on the cell that received the DCI. For example, if cell A receives the DCI and schedules cell B together or cross-carrier schedules cell B as the scheduled cell, the T value of cell A (e.g., 3ms) can be used.

[0264] For example, T may differ for each cell (for multiple cells that are concurrently scheduled or can be concurrently scheduled via a single DCI). For example, it is possible to assume that T is different for each cell that is scheduled together via a DCI. For example, when cells A and B are scheduled together, and T for cell A = 3ms and T for B = 5ms, the first gap to occur may be the gap / limit that occurs earlier between the gap / limit after 3ms that can be applied to cell A and the gap / limit after 5ms that can be applied to cell B. For example, in the case of cross-carrier scheduling, it is also possible to assume that T is different for each target cell. For example, when cells A and B can be scheduled as scheduled cells, and T = 3ms for cell A and T = 5ms for cell B, the first gap to occur may be the nearest gap / limit after 3ms that can be applied to cell A when cell A is the scheduled cell, and the nearest gap / limit after 5ms that can be applied to cell B when cell B is the scheduled cell.

[0265] Additionally, for example, if the processing time T is determined by the base station's settings, the following methods may be considered. For instance, the base station may pre-set the T value to be used for the settings of each cell. For instance, the T value actually used may be determined based on the cell receiving the DCI as described above, or the largest value among the T values ​​supported by the DCI receiving cell and the target cell in a group of cells scheduled together or cross-carrier scheduling may be used as the T value, or the T value set for each cell may be applied on a per-cell basis. For instance, the base station may explicitly transmit the T value of each cell or the T value to be used for this scheduling to the terminal via the DCI.

[0266] For example, through these methods, the terminal can effectively handle minimum processing time during multi-cell / carrier scheduling and cross-carrier scheduling operations, and simultaneously achieve scheduling flexibility of the base station and performance optimization of the terminal.

[0267] 8. Proposal 8: Method for Setting Gap Skip / Cancel Indicators During Multi-Cell / Carrier Operation

[0268] As described above, for example, the terminal may determine the location of the gap / limit to be canceled by considering the processing time upon receiving the MG-CI. For example, the terminal may consider the time T required to cancel the measurement at the gap / limit and perform the scheduled transmission from the last symbol of the PDCCH containing the MG-CI. For example, the terminal may cancel the gap / limit after T from the last symbol of the PDCCH that received the MG-CI. For example, in accordance with the instructions of the MG-CI, the terminal may cancel all or part of the nearest gap / limit after T, use a separate value of T, or cancel all or part of the gap / limit located in a specific symbol / slot / time interval.

[0269] For example, considering DCI format 0_3 / 1_3, the base station can simultaneously schedule multiple cells of the terminal through a single DCI. Alternatively, when performing cell / carrier scheduling (e.g., cross-carrier scheduling) using a DCI format such as DCI 0_1 / 1_1, for example, the terminal can perform the following operations by applying Alternative 2 of Proposal 2 and Proposal 6.

[0270] For example, if a gap skip / cancel indicator is set on at least one cell among the cells scheduled together by DCI format 0_3 / 1_3 or the target cells in cross-carrier scheduling, the terminal may assume that the gap skip / cancel indicator may be included in the DCI format 0_3 / 1_3.

[0271] For example, the terminal may apply the MG-CI message based on the cell scheduled with the message or the target cell of cross-carrier scheduling. For example, the terminal may cancel the nearest gap / limit after processing time T among the cells scheduled with the message.

[0272] For example, to apply gap skip / cancel indicators via DCI format 0_3 / 1_3, the targets of application may all be in the same frequency band (intra-band) and have the same SCS. For such cases, for example, when considering DCI format 0_3 / 1_3, other methods may also be considered. For example, the following methods may be considered.

[0273] For example, the terminal may receive a setting for the presence or absence of a gap skip / cancel indicator for each set of cells scheduled together by DCI format 0_3 / 1_3. For example, a parameter for setting the presence or absence of a gap skip / cancel indicator may be set within the MC-DCI-SetOfCells-r18 IE. Through this, for example, the terminal may receive a 1-bit indicator only when a specific set of cells is appropriate for gap skip / cancel. For example, this may be the case where all cells within the cell set exist within the same frequency band (intra-band) and all cells in the cell set have the same SCS. For example, the MC-DCI-SetOfCells-r18 IE may represent a set of cells for multi-cell PDSCH / PUSCH scheduling from a serving cell. For example, Table 4 shows an example where a parameter is set to determine whether to set the gap skip / cancel indicator within MC-DCI-SetOfCells-r18 IE for serving cell settings.

[0274] ServingCellConfig ::= SEQUENCE {...MC-DCI-SetOfCells-r18 ::= SEQUENCE {setOfCellsId-r18 SetOfCellsId-r18,gapSkipCancel-r18 ENUMERATED {enabled}...

[0275] For example, in Table 4, setOfCellsId can set the index of the set of cells to be indicated in DCI format 0_3 / 1_3, and gapSkipCancel-r18 can be a parameter that sets whether to have a gap skip / cancel indicator.

[0276] For example, if a gap skip / cancel indicator is set on all target cells among the cells scheduled together by DCI format 0_3 / 1_3, the terminal may assume that the gap skip / cancel indicator may be included in the DCI format 0_3 / 1_3. Through this, for example, the base station may set a 1-bit indicator only on the cells suitable for gap skip / cancel, and the terminal may assume that the DCI includes a 1-bit indicator only when all target cells are suitable cells.

[0277] For example, if cells scheduled together by DCI format 0_3 / 1_3 that have gap skip / cancel indicators set satisfy certain conditions, the terminal may assume that the gap skip / cancel indicator may be included in the DCI format 0_3 / 1_3. For example, the condition may be that all cells in a cell set exist within the same frequency band (intra-band) and all cells in the cell set have the same SCS. For example, the terminal may assume that a 1-bit instruction is included in the DCI only when all cells scheduled together by DCI format 0_3 / 1_3 that have gap skip / cancel indicators set exist within the same frequency band (intra-band) and have the same SCS. For example, in this case, the 1-bit instruction may be applied only to the cells scheduled together that have gap skip / cancel indicators set.

[0278] For example, the terminal may receive a setting regarding the presence or absence of a gap skip / cancel indicator in DCI format 0_3 / 1_3 for cells scheduled in DCI format 0_3 / 1_3. In this case, for example, it may be assumed that the gap skip / cancel indicator may be included in the DCI format 0_3 / 1_3 only when all cells scheduled together in DCI format 0_3 / 1_3 meet specific conditions. For example, the condition may be that all cells in a cell set exist within the same frequency band (intra-band) and all cells in the cell set have the same SCS. For example, the terminal may assume that a 1-bit indicator is included in the DCI only when all cells scheduled together by DCI format 0_3 / 1_3 exist within the same frequency band (intra-band) and have the same SCS. For example, a cell that schedules with the above DCI format 0_3 / 1_3 may be a cell in which the terminal receives the above DCI format 0_3 / 1_3.

[0279] For example, a terminal may receive a setting regarding the presence or absence of a gap skip / cancel indicator for DCI format 0_3 / 1_3 for cells scheduled with DCI format 0_3 / 1_3. In this case, for example, it may be assumed that the gap skip / cancel indicator for DCI format 0_3 / 1_3 may be applied only when all cells scheduled together by DCI format 0_3 / 1_3 meet specific conditions. For example, such conditions may be that all cells within a cell set exist within the same frequency band (intra-band) and all cells within the cell set have the same SCS. For example, it may be assumed that the terminal does not ignore and applies the 1-bit DCI indicator only when all cells scheduled together by DCI format 0_3 / 1_3 exist within the same frequency band (intra-band) and have the same SCS. For example, a cell that schedules with the above DCI format 0_3 / 1_3 may be a cell in which the terminal receives the above DCI format 0_3 / 1_3.

[0280] According to the embodiment(s) proposed in this disclosure, transmission / reception over the measurement gap for XR services can be effectively controlled. Dynamic and granular MG control through the proposed DCI format, cell-specific and FR-specific settings, and / or various feedback mechanisms can maximize network resource utilization and enable immediate response to the requirements of XR traffic. This allows for reduced power consumption of terminals, increased spectrum efficiency, minimized latency of XR services, and improved quality. Furthermore, by increasing the flexibility of network operations and ensuring the stability and continuity of XR services in various environments, the user experience can be significantly improved in 5G and beyond networks (e.g., 6G, next-generation mobile communications, etc.).

[0281] FIG. 8 illustrates a procedure performed by a first device according to one embodiment of the present disclosure. The embodiment of FIG. 8 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, suggestions, methods, and / or operations of said embodiment may be omitted.

[0282] Referring to FIG. 8, at step S810, the first device may obtain information related to a set of cells for multi-cell scheduling. At step S820, the first device may receive downlink control information including measurement gap cancellation information from the second device. At step S830, the first device may perform communication in the measurement gap based on the measurement gap cancellation information. For example, based on the fact that information allowing measurement gap cancellation is set within the information related to the set of cells, the measurement gap cancellation information may be included in the downlink control information.

[0283] For example, based on the fact that information allowing the cancellation of the measurement gap is not set within the information associated with the set of cells, the information allowing the cancellation of the measurement gap may be omitted from the downlink control information.

[0284] For example, based on the fact that information that does not allow the above measurement gap cancellation is set within the information related to the set of cells, the above measurement gap cancellation information may be omitted from the downlink control information.

[0285] For example, the downlink control information may be control information for uplink scheduling for the set of cells.

[0286] For example, the downlink control information may be control information for downlink scheduling for the set of cells.

[0287] For example, based on (i) all cells within the set of cells are within the same frequency band, (ii) all cells within the set of cells have the same subcarrier spacing, and (iii) information allowing the measurement gap cancellation is set within the information associated with the set of cells, the measurement gap cancellation information may be included in the downlink control information.

[0288] For example, based on (i) all cells within the set of cells are within the intra-band, (ii) all cells within the set of cells have the same subcarrier interval, and (iii) information allowing the measurement gap cancellation is set within the information associated with the set of cells, the measurement gap cancellation information may be included in the downlink control information.

[0289] For example, based on the measurement gap cancellation information, among one or more measurement gaps set in the set of cells, the measurement gap may be canceled, and the communication may be performed at the measurement gap.

[0290] For example, the measurement gap may be the closest measurement gap after the processing time from the time the downlink control information was received, among one or more measurement gaps set in the set of cells.

[0291] For example, the measurement gap may include at least one measurement gap among one or more measurement gaps set in the set of cells, which is included within a time interval after the processing time from the time the downlink control information was received. For example, the processing time and the time interval may be set to the first device or pre-set.

[0292] For example, the measurement gap cancellation information may be a 1-bit indicator included in the downlink control information.

[0293] For example, information related to the set of cells for the multi-cell scheduling can be received from the second device through a wireless resource control message.

[0294] For example, the first device may be a terminal, and the second device may be a base station, a satellite, or a network node.

[0295] The proposed method above may be applied to a device according to various embodiments of the present disclosure. For example, a processor (102) of a first device (100) may obtain information related to a set of cells for multi-cell scheduling, and / or the processor (102) of the first device (100) may control a transceiver (106) to receive downlink control information including measurement gap cancellation information from a second device, and / or the processor (102) of the first device (100) may control the transceiver (106) to perform communication in a measurement gap based on the measurement gap cancellation information. For example, based on the fact that information allowing measurement gap cancellation is set within the information related to the set of cells, the measurement gap cancellation information may be included in the downlink control information.

[0296] According to one embodiment of the present disclosure, a first device may be provided. For example, the first device may include at least one transceiver; at least one processor; and at least one memory connected to the at least one processor and storing instructions. For example, the instructions may cause the first device to perform an operation based on execution by the at least one processor. For example, the operation may include at least one of: obtaining information related to a set of cells for multi-cell scheduling; receiving downlink control information including measurement gap cancellation information from a second device; and / or performing communication in a measurement gap based on the measurement gap cancellation information. For example, the measurement gap cancellation information may be included in the downlink control information based on information allowing measurement gap cancellation being set within the information related to the set of cells.

[0297] According to one embodiment of the present disclosure, a processing device may be provided. For example, the processing device may include at least one processor; and at least one memory connected to the at least one processor and storing instructions. For example, the instructions may cause a first device to perform an operation based on execution by the at least one processor. For example, the operation may include at least one of: obtaining information related to a set of cells for multi-cell scheduling; receiving downlink control information including measurement gap cancellation information from a second device; and / or performing communication in a measurement gap based on the measurement gap cancellation information. For example, based on information allowing measurement gap cancellation being set within the information related to the set of cells, the measurement gap cancellation information may be included in the downlink control information.

[0298] According to one embodiment of the present disclosure, a non-transient computer-readable storage medium recording instructions may be provided. For example, the instructions may cause a first device to perform an operation based on execution. For example, the operation may include at least one of: obtaining information related to a set of cells for multi-cell scheduling; receiving downlink control information including measurement gap cancellation information from a second device; and / or performing communication at a measurement gap based on the measurement gap cancellation information. For example, based on information allowing measurement gap cancellation being set within the information related to the set of cells, the measurement gap cancellation information may be included in the downlink control information.

[0299] FIG. 9 illustrates a procedure performed by a second device according to one embodiment of the present disclosure. The embodiment of FIG. 9 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, suggestions, methods, and / or operations of said embodiments may be omitted.

[0300] Referring to FIG. 9, at step S910, the second device may transmit information related to a set of cells for multi-cell scheduling to the first device. At step S920, the second device may transmit downlink control information including measurement gap cancellation information to the first device. At step S930, the second device may perform communication at a measurement gap based on the measurement gap cancellation information. For example, based on the fact that information allowing measurement gap cancellation is set within the information related to the set of cells, the measurement gap cancellation information may be included in the downlink control information.

[0301] For example, based on the fact that information allowing the cancellation of the measurement gap is not set within the information associated with the set of cells, the information allowing the cancellation of the measurement gap may be omitted from the downlink control information.

[0302] For example, based on the fact that information that does not allow the above measurement gap cancellation is set within the information related to the set of cells, the above measurement gap cancellation information may be omitted from the downlink control information.

[0303] For example, the downlink control information may be control information for uplink scheduling for the set of cells.

[0304] For example, the downlink control information may be control information for downlink scheduling for the set of cells.

[0305] For example, based on (i) all cells within the set of cells are within the same frequency band, (ii) all cells within the set of cells have the same subcarrier spacing, and (iii) information allowing the measurement gap cancellation is set within the information associated with the set of cells, the measurement gap cancellation information may be included in the downlink control information.

[0306] For example, based on (i) all cells within the set of cells are within the intra-band, (ii) all cells within the set of cells have the same subcarrier interval, and (iii) information allowing the measurement gap cancellation is set within the information associated with the set of cells, the measurement gap cancellation information may be included in the downlink control information.

[0307] For example, based on the measurement gap cancellation information, among one or more measurement gaps set in the set of cells, the measurement gap may be canceled, and the communication may be performed at the measurement gap.

[0308] For example, the measurement gap may be the closest measurement gap after the processing time from the time the downlink control information was received, among one or more measurement gaps set in the set of cells.

[0309] For example, the measurement gap may include at least one measurement gap among one or more measurement gaps set in the set of cells, which is included within a time interval after the processing time from the time the downlink control information was received. For example, the processing time and the time interval may be set to the first device or pre-set.

[0310] For example, the measurement gap cancellation information may be a 1-bit indicator included in the downlink control information.

[0311] For example, information related to the set of cells for the multi-cell scheduling can be transmitted to the first device through a wireless resource control message.

[0312] For example, the first device may be a terminal, and the second device may be a base station, a satellite, or a network node.

[0313] The proposed method above may be applied to a device according to various embodiments of the present disclosure. For example, a processor (202) of a second device (200) may control a transceiver (206) to transmit information related to a set of cells for multi-cell scheduling to a first device, and / or the processor (202) of the second device (200) may control the transceiver (206) to transmit downlink control information including measurement gap cancellation information to the first device, and / or the processor (202) of the second device (200) may control the transceiver (206) to perform communication in a measurement gap based on the measurement gap cancellation information. For example, based on the fact that information allowing measurement gap cancellation is set within the information related to the set of cells, the measurement gap cancellation information may be included in the downlink control information.

[0314] According to one embodiment of the present disclosure, a second device may be provided. For example, the second device may include at least one transceiver; at least one processor; and at least one memory connected to the at least one processor and storing instructions. For example, the instructions may cause the second device to perform an operation based on execution by the at least one processor. For example, the operation may include at least one of: transmitting information related to a set of cells for multi-cell scheduling to the first device; transmitting downlink control information including measurement gap cancellation information to the first device; and / or performing communication in a measurement gap based on the measurement gap cancellation information. For example, based on information allowing measurement gap cancellation being set within the information related to the set of cells, the measurement gap cancellation information may be included in the downlink control information.

[0315] According to one embodiment of the present disclosure, a processing device may be provided. For example, the processing device may include at least one processor; and at least one memory connected to the at least one processor and storing instructions. For example, the instructions may cause a second device to perform an operation based on execution by the at least one processor. For example, the operation may include at least one of: transmitting information related to a set of cells for multi-cell scheduling to a first device; transmitting downlink control information including measurement gap cancellation information to the first device; and / or performing communication at a measurement gap based on the measurement gap cancellation information. For example, based on information allowing measurement gap cancellation being set within the information related to the set of cells, the measurement gap cancellation information may be included in the downlink control information.

[0316] According to one embodiment of the present disclosure, a non-transient computer-readable storage medium recording instructions may be provided. For example, the instructions may cause a second device to perform an operation based on execution. For example, the operation may include at least one of: transmitting information related to a set of cells for multi-cell scheduling to a first device; transmitting downlink control information including measurement gap cancellation information to the first device; and / or performing communication at a measurement gap based on the measurement gap cancellation information. For example, based on information allowing measurement gap cancellation being set within the information related to the set of cells, the measurement gap cancellation information may be included in the downlink control information.

[0317] The methods proposed in this disclosure are described based on NR systems, but are not limited to a specific transmission and reception form of NR unless otherwise stated. Therefore, it is obvious that the methods proposed in this disclosure can be applied to the structures and services of transmission and reception of all wireless communication without further explanation.

[0318] Various embodiments of the present disclosure may be combined with one another, and some descriptions, functions, procedures, suggestions, methods, and / or operations of the embodiments may be omitted.

[0319] The following describes an apparatus to which various embodiments of the present disclosure may be applied.

[0320] Although not limited to this, the various descriptions, functions, procedures, proposals, methods, and / or flowcharts of operation disclosed in this document may be applied to various fields requiring wireless communication / connection (e.g., 5G) between devices.

[0321] Examples are provided in more detail below with reference to the drawings. In the following drawings and descriptions, the same reference numerals may represent the same or corresponding hardware blocks, software blocks, or function blocks unless otherwise described.

[0322] FIG. 10 shows a communication system (1) according to one embodiment of the present disclosure. The embodiment of FIG. 10 can be combined with various embodiments of the present disclosure.

[0323] Referring to FIG. 10, a communication system (1) to which various embodiments of the present disclosure are applied includes a wireless device, a base station, and a network. Here, the wireless device refers to a device that performs communication using wireless access technology (e.g., 5G NR (New RAT), LTE (Long Term Evolution)) and may be referred to as a communication / wireless / 5G device. Although not limited thereto, the wireless device may include a robot (100a), a vehicle (100b-1, 100b-2), an XR (eXtended Reality) device (100c), a hand-held device (100d), a home appliance (100e), an IoT (Internet of Thing) device (100f), and an AI device / server (400). For example, the vehicle may include a vehicle equipped with wireless communication functions, an autonomous vehicle, a vehicle capable of performing inter-vehicle communication, etc. Here, the vehicle may include an Unmanned Aerial Vehicle (UAV) (e.g., a drone) and / or an Aerial Vehicle (AV) (e.g., Advanced Air Mobility). The XR device includes an Augmented Reality (AR) / Virtual Reality (VR) / Mixed Reality (MR) device and may be implemented in the form of a Head-Mounted Device (HMD), a Head-Up Display (HUD) equipped in a vehicle, a television, a smartphone, a computer, a wearable device, a home appliance, digital signage, a vehicle, a robot, etc. The portable device may include a smartphone, a smartpad, a wearable device (e.g., a smartwatch, smart glasses), a computer (e.g., a laptop, etc.). The home appliance may include a TV, a refrigerator, a washing machine, etc. The IoT device may include a sensor, a smart meter, etc. For example, a base station and a network may be implemented as a wireless device, and a specific wireless device (200a) may operate as a base station / network node to other wireless devices.

[0324] Here, the wireless communication technology implemented in the wireless devices (100a to 100f) of this specification may include LTE, NR, and 6G, as well as Narrowband Internet of Things for low-power communication. For example, NB-IoT technology may be an example of LPWAN (Low Power Wide Area Network) technology and may be implemented according to standards such as LTE Cat NB1 and / or LTE Cat NB2, but is not limited to the names mentioned above. Additionally, or generally, the wireless communication technology implemented in the wireless devices (100a to 100f) of this specification may perform communication based on LTE-M technology. For example, LTE-M technology may be an example of LPWAN technology and may be referred to by various names such as eMTC (enhanced Machine Type Communication). For example, LTE-M technology may be implemented in at least one of various standards such as 1) LTE CAT 0, 2) LTE Cat M1, 3) LTE Cat M2, 4) LTE non-BL (non-Bandwidth Limited), 5) LTE-MTC, 6) LTE Machine Type Communication, and / or 7) LTE M, and is not limited to the names mentioned above. Additionally or generally, wireless communication technology implemented in the wireless devices (100a to 100f) of this specification may include at least one of ZigBee, Bluetooth, and Low Power Wide Area Network (LPWAN) for low-power communication, and is not limited to the names mentioned above. As an example, ZigBee technology can create personal area networks (PANs) related to small / low-power digital communication based on various standards such as IEEE 802.15.4, and may be referred to by various names.

[0325] Wireless devices (100a to 100f) can be connected to a network (300) through a base station (200). Artificial Intelligence (AI) technology may be applied to the wireless devices (100a to 100f), and the wireless devices (100a to 100f) can be connected to an AI server (400) through the network (300). The network (300) can be configured using a 3G network, a 4G (e.g., LTE) network, or a 5G (e.g., NR) network. The wireless devices (100a to 100f) may communicate with each other through the base station (200) / network (300), but they may also communicate directly (e.g., sidelink communication) without going through the base station / network. For example, vehicles (100b-1, 100b-2) can communicate directly (e.g., V2V (Vehicle to Vehicle) / V2X (Vehicle to everything) communication). Also, IoT devices (e.g., sensors) can communicate directly with other IoT devices (e.g., sensors) or other wireless devices (100a to 100f).

[0326] Wireless communication / connection (150a, 150b, 150c) can be established between wireless devices (100a~100f) / base station (200) and base station (200) / base station (200). Here, wireless communication / connection can be achieved through various wireless access technologies (e.g., 5G NR), such as uplink / downlink communication (150a), sidelink communication (150b) (or D2D communication), and inter-base station communication (150c) (e.g., relay, IAB (Integrated Access Backhaul)). Through wireless communication / connection (150a, 150b, 150c), wireless devices and base stations / wireless devices, and base stations and base stations can transmit / receive wireless signals to / from each other. For example, wireless communication / connection (150a, 150b, 150c) can transmit / receive signals through various physical channels. To this end, based on various proposals of the present disclosure, at least some of the following may be performed: various configuration information setting processes for transmitting / receiving wireless signals, various signal processing processes (e.g., channel encoding / decoding, modulation / demodulation, resource mapping / demapping, etc.), resource allocation processes, etc.

[0327] FIG. 11 shows a wireless device according to one embodiment of the present disclosure. The embodiment of FIG. 11 may be combined with various embodiments of the present disclosure.

[0328] Referring to FIG. 11, the first wireless device (100) and the second wireless device (200) can transmit and receive wireless signals through various wireless access technologies (e.g., LTE, NR). Here, {the first wireless device (100), the second wireless device (200)} may correspond to {wireless device (100x), base station (200)} and / or {wireless device (100x), wireless device (100x)} of FIG. 10.

[0329] The first wireless device (100) includes one or more processors (102) and one or more memories (104), and may additionally include one or more transceivers (106) and / or one or more antennas (108). The processor (102) controls the memory (104) and / or transceivers (106) and may be configured to implement the descriptions, functions, procedures, proposals, methods and / or sequences of operation disclosed in this document. For example, the processor (102) may process information within the memory (104) to generate a first information / signal and then transmit a wireless signal containing the first information / signal through the transceiver (106). Additionally, the processor (102) may receive a wireless signal containing a second information / signal through the transceiver (106) and then store information obtained from the signal processing of the second information / signal in the memory (104). The memory (104) may be connected to the processor (102) and may store various information related to the operation of the processor (102). For example, the memory (104) may store software code containing instructions for performing some or all of the processes controlled by the processor (102) or for performing the descriptions, functions, procedures, proposals, methods, and / or operation sequence diagrams disclosed in this document. Here, the processor (102) and the memory (104) may be part of a communication modem / circuit / chip designed to implement wireless communication technology (e.g., LTE, NR). The transceiver (106) may be connected to the processor (102) and may transmit and / or receive wireless signals through one or more antennas (108). The transceiver (106) may include a transmitter and / or receiver. The transceiver (106) may be combined with an RF (Radio Frequency) unit. In the present disclosure, a wireless device may refer to a communication modem / circuit / chip.

[0330] The second wireless device (200) includes one or more processors (202) and one or more memories (204), and may additionally include one or more transceivers (206) and / or one or more antennas (208). The processor (202) controls the memory (204) and / or transceivers (206) and may be configured to implement the descriptions, functions, procedures, proposals, methods and / or sequences of operation disclosed in this document. For example, the processor (202) may process information within the memory (204) to generate a third information / signal and then transmit a wireless signal containing the third information / signal through the transceiver (206). Additionally, the processor (202) may receive a wireless signal containing a fourth information / signal through the transceiver (206) and then store information obtained from the signal processing of the fourth information / signal in the memory (204). Memory (204) may be connected to the processor (202) and may store various information related to the operation of the processor (202). For example, memory (204) may store software code containing instructions for performing some or all of the processes controlled by the processor (202) or for performing the descriptions, functions, procedures, proposals, methods, and / or flowcharts of operation disclosed in this document. Here, the processor (202) and memory (204) may be part of a communication modem / circuit / chip designed to implement wireless communication technology (e.g., LTE, NR). A transceiver (206) may be connected to the processor (202) and may transmit and / or receive wireless signals through one or more antennas (208). The transceiver (206) may include a transmitter and / or receiver. The transceiver (206) may be interchangeable with an RF unit. In this disclosure, a wireless device may refer to a communication modem / circuit / chip.

[0331] Hereinafter, hardware elements of the wireless device (100, 200) will be described in more detail. Although not limited thereto, one or more protocol layers may be implemented by one or more processors (102, 202). For example, one or more processors (102, 202) may implement one or more layers (e.g., functional layers such as PHY, MAC, RLC, PDCP, RRC, SDAP). One or more processors (102, 202) may generate one or more Protocol Data Units (PDUs) and / or Service Data Units (SDUs) according to the descriptions, functions, procedures, proposals, methods, and / or flowcharts of operation disclosed in this document. One or more processors (102, 202) may generate messages, control information, data, or information according to the descriptions, functions, procedures, proposals, methods, and / or flowcharts of operation disclosed in this document. One or more processors (102, 202) may generate a signal (e.g., baseband signal) containing a PDU, SDU, message, control information, data, or information according to the functions, procedures, proposals, and / or methods disclosed in this document and provide it to one or more transceivers (106, 206). One or more processors (102, 202) may receive a signal (e.g., baseband signal) from one or more transceivers (106, 206) and may obtain a PDU, SDU, message, control information, data, or information according to the descriptions, functions, procedures, proposals, methods, and / or flowcharts disclosed in this document.

[0332] One or more processors (102, 202) may be referred to as a controller, microcontroller, microprocessor, or microcomputer. One or more processors (102, 202) may be implemented by hardware, firmware, software, or a combination thereof. For example, one or more Application Specific Integrated Circuits (ASICs), one or more Digital Signal Processors (DSPs), one or more Digital Signal Processing Devices (DSPDs), one or more Programmable Logic Devices (PLDs), or one or more Field Programmable Gate Arrays (FPGAs) may be included in one or more processors (102, 202). The descriptions, functions, procedures, proposals, methods, and / or flowcharts disclosed in this document may be implemented using firmware or software, and the firmware or software may be implemented to include modules, procedures, functions, etc. Firmware or software configured to perform the descriptions, functions, procedures, proposals, methods, and / or operation sequences disclosed in this document may be contained in one or more processors (102, 202) or stored in one or more memories (104, 204) and driven by one or more processors (102, 202). The descriptions, functions, procedures, proposals, methods, and / or operation sequences disclosed in this document may be implemented using firmware or software in the form of code, instructions, and / or sets of instructions.

[0333] One or more memories (104, 204) may be connected to one or more processors (102, 202) and may store various forms of data, signals, messages, information, programs, codes, instructions, and / or commands. One or more memories (104, 204) may be composed of ROM, RAM, EPROM, flash memory, hard drive, registers, cache memory, computer read storage media, and / or combinations thereof. One or more memories (104, 204) may be located inside and / or outside of one or more processors (102, 202). Additionally, one or more memories (104, 204) may be connected to one or more processors (102, 202) through various technologies such as wired or wireless connections.

[0334] One or more transceivers (106, 206) may transmit user data, control information, wireless signals / channels, etc., as mentioned in the methods and / or operation flowcharts, etc., of this document to one or more other devices. One or more transceivers (106, 206) may receive user data, control information, wireless signals / channels, etc., as mentioned in the descriptions, functions, procedures, proposals, methods and / or operation flowcharts, etc., disclosed in this document from one or more other devices. For example, one or more transceivers (106, 206) may be connected to one or more processors (102, 202) and may transmit and receive wireless signals. For example, one or more processors (102, 202) may control one or more transceivers (106, 206) to transmit user data, control information, or wireless signals to one or more other devices. Additionally, one or more processors (102, 202) may control one or more transceivers (106, 206) to receive user data, control information, or wireless signals from one or more other devices. Additionally, one or more transceivers (106, 206) may be connected to one or more antennas (108, 208), and one or more transceivers (106, 206) may be configured to transmit and receive user data, control information, wireless signals / channels, etc., as described in the descriptions, functions, procedures, proposals, methods, and / or flowcharts of operation disclosed in this document through one or more antennas (108, 208). In this document, one or more antennas may be multiple physical antennas or multiple logical antennas (e.g., antenna ports). One or more transceivers (106, 206) can convert the received wireless signal / channel, etc. from an RF band signal to a baseband signal in order to process the received user data, control information, wireless signal / channel, etc. using one or more processors (102, 202).One or more transceivers (106, 206) can convert user data, control information, wireless signals / channels, etc. processed using one or more processors (102, 202) from baseband signals to RF band signals. To this end, one or more transceivers (106, 206) may include (analog) oscillators and / or filters.

[0335] FIG. 12 shows a signal processing circuit for a transmission signal according to one embodiment of the present disclosure. The embodiment of FIG. 12 can be combined with various embodiments of the present disclosure.

[0336] Referring to FIG. 12, the signal processing circuit (1000) may include a scrambler (1010), a modulator (1020), a layer mapper (1030), a precoder (1040), a resource mapper (1050), and a signal generator (1060). Although not limited thereto, the operation / function of FIG. 12 may be performed in the processor (102, 202) and / or transceiver (106, 206) of FIG. 11. The hardware elements of FIG. 12 may be implemented in the processor (102, 202) and / or transceiver (106, 206) of FIG. 11. For example, blocks 1010 through 1060 may be implemented in the processor (102, 202) of FIG. 11. Additionally, blocks 1010 to 1050 may be implemented in the processor (102, 202) of FIG. 11, and block 1060 may be implemented in the transceiver (106, 206) of FIG. 11.

[0337] The codeword can be converted into a wireless signal through the signal processing circuit (1000) of FIG. 12. Here, the codeword is an encoded bit sequence of an information block. The information block may include a transmission block (e.g., UL-SCH transmission block, DL-SCH transmission block). The wireless signal can be transmitted through various physical channels (e.g., PUSCH, PDSCH).

[0338] Specifically, a codeword can be converted into a scrambled bit sequence by a scrambler (1010). The scrambled sequence used for scrambling is generated based on an initialization value, which may include ID information of a wireless device, etc. The scrambled bit sequence can be modulated into a modulation symbol sequence by a modulator (1020). The modulation method may include pi / 2-BPSK (pi / 2-Binary Phase Shift Keying), m-PSK (m-Phase Shift Keying), m-QAM (m-Quadrature Amplitude Modulation), etc. The complex modulation symbol sequence can be mapped to one or more transmission layers by a layer mapper (1030). The modulation symbols of each transmission layer can be mapped to the corresponding antenna port(s) by a precoder (1040) (precoding). The output z of the precoder (1040) can be obtained by multiplying the output y of the layer mapper (1030) by an N*M precoding matrix W. Here, N is the number of antenna ports and M is the number of transmission layers. Here, the precoder (1040) can perform precoding after performing transform precoding (e.g., DFT transform) on the complex modulation symbols. Additionally, the precoder (1040) can perform precoding without performing transform precoding.

[0339] A resource mapper (1050) can map the modulation symbols of each antenna port to a time-frequency resource. The time-frequency resource may include multiple symbols (e.g., CP-OFDMA symbols, DFT-s-OFDMA symbols) in the time domain and multiple subcarriers in the frequency domain. A signal generator (1060) generates a radio signal from the mapped modulation symbols, and the generated radio signal can be transmitted to another device through each antenna. To this end, the signal generator (1060) may include an Inverse Fast Fourier Transform (IFFT) module, a Cyclic Prefix (CP) inserter, a Digital-to-Analog Converter (DAC), a frequency uplink converter, etc.

[0340] The signal processing process for a received signal in a wireless device can be configured as the inverse of the signal processing process (1010–1060) of FIG. 12. For example, a wireless device (e.g., 100, 200 in FIG. 11) can receive a wireless signal from the outside through an antenna port / transceiver. The received wireless signal can be converted into a baseband signal through a signal restorer. To this end, the signal restorer may include a frequency downlink converter, an analog-to-digital converter (ADC), a CP remover, and a Fast Fourier Transform (FFT) module. Subsequently, the baseband signal can be restored into a codeword through a resource de-mapper process, a postcoding process, a demodulation process, and a de-scrambling process. The codeword can be restored into the original information block through decoding. Accordingly, a signal processing circuit (not shown) for a received signal may include a signal restorer, a resource de-mapper, a postcoder, a demodulator, a de-scrambler, and a decoder.

[0341] FIG. 13 illustrates a wireless device according to one embodiment of the present disclosure. The wireless device may be implemented in various forms depending on the use-example / service (see FIG. 10). The embodiment of FIG. 13 may be combined with various embodiments of the present disclosure.

[0342] Referring to FIG. 13, the wireless device (100, 200) corresponds to the wireless device (100, 200) of FIG. 11 and may be composed of various elements, components, units / parts, and / or modules. For example, the wireless device (100, 200) may include a communication unit (110), a control unit (120), a memory unit (130), and additional elements (140). The communication unit may include a communication circuit (112) and transceiver(s) (114). For example, the communication circuit (112) may include one or more processors (102, 202) and / or one or more memories (104, 204) of FIG. 11. For example, the transceiver(s) (114) may include one or more transceivers (106, 206) and / or one or more antennas (108, 208) of FIG. 11. The control unit (120) is electrically connected to the communication unit (110), the memory unit (130), and additional elements (140) and controls the general operation of the wireless device. For example, the control unit (120) may control the electrical / mechanical operation of the wireless device based on a program / code / command / information stored in the memory unit (130). Additionally, the control unit (120) may transmit information stored in the memory unit (130) to an external (e.g., another communication device) via a wireless / wired interface through the communication unit (110), or store information received from an external (e.g., another communication device) via a wireless / wired interface through the communication unit (110) in the memory unit (130).

[0343] The additional element (140) can be configured in various ways depending on the type of wireless device. For example, the additional element (140) may include at least one of a power unit / battery, an input / output unit (I / O unit), a driving unit, and a computing unit. Although not limited thereto, the wireless device may be implemented in the form of a robot (Fig. 10, 100a), a vehicle (Fig. 10, 100b-1, 100b-2), an XR device (Fig. 10, 100c), a portable device (Fig. 10, 100d), a home appliance (Fig. 10, 100e), an IoT device (Fig. 10, 100f), a digital broadcasting terminal, a hologram device, a public safety device, an MTC device, a medical device, a fintech device (or financial device), a security device, a climate / environment device, an AI server / device (Fig. 10, 400), a base station (Fig. 10, 200), a network node, etc. Wireless devices can be used in a movable or fixed location depending on the use—e.g., service.

[0344] In FIG. 13, various elements, components, units / parts, and / or modules within the wireless device (100, 200) may be entirely interconnected via a wired interface, or at least partially connected via a communication unit (110). For example, within the wireless device (100, 200), the control unit (120) and the communication unit (110) may be connected via a wire, and the control unit (120) and the first unit (e.g., 130, 140) may be connected wirelessly via the communication unit (110). Additionally, each element, component, unit / part, and / or module within the wireless device (100, 200) may include one or more additional elements. For example, the control unit (120) may be composed of one or more sets of processors. For example, the control unit (120) may be composed of a set of a communication control processor, an application processor, an Electronic Control Unit (ECU), a graphics processing processor, a memory control processor, etc. As another example, the memory unit (130) may be composed of RAM (Random Access Memory), DRAM (Dynamic RAM), ROM (Read Only Memory), flash memory, volatile memory, non-volatile memory and / or a combination thereof.

[0345] Hereinafter, an implementation example of FIG. 13 will be described in more detail with reference to the drawings.

[0346] FIG. 14 illustrates a portable device according to one embodiment of the present disclosure. The portable device may include a smartphone, a smartpad, a wearable device (e.g., a smartwatch, smart glasses), a portable computer (e.g., a laptop, etc.). The portable device may be referred to as an MS (Mobile Station), UT (User Terminal), MSS (Mobile Subscriber Station), SS (Subscriber Station), AMS (Advanced Mobile Station), or WT (Wireless Terminal). The embodiment of FIG. 14 may be combined with various embodiments of the present disclosure.

[0347] Referring to FIG. 14, the portable device (100) may include an antenna unit (108), a communication unit (110), a control unit (120), a memory unit (130), a power supply unit (140a), an interface unit (140b), and an input / output unit (140c). The antenna unit (108) may be configured as part of the communication unit (110). Blocks 110 to 130 / 140a to 140c each correspond to blocks 110 to 130 / 140 of FIG. 13.

[0348] The communication unit (110) can transmit and receive signals (e.g., data, control signals, etc.) with other wireless devices and base stations. The control unit (120) can control the components of the portable device (100) to perform various operations. The control unit (120) may include an AP (Application Processor). The memory unit (130) can store data / parameters / programs / code / commands required for the operation of the portable device (100). Additionally, the memory unit (130) can store input / output data / information, etc. The power supply unit (140a) supplies power to the portable device (100) and may include wired / wireless charging circuits, batteries, etc. The interface unit (140b) can support the connection between the portable device (100) and other external devices. The interface unit (140b) may include various ports (e.g., audio input / output ports, video input / output ports) for connection with external devices. The input / output unit (140c) can receive or output video information / signals, audio information / signals, data, and / or information input by a user. The input / output unit (140c) may include a camera, a microphone, a user input unit, a display unit (140d), a speaker and / or a haptic module, etc.

[0349] For example, in the case of data communication, the input / output unit (140c) acquires information / signals (e.g., touch, text, voice, image, video) input from the user, and the acquired information / signals can be stored in the memory unit (130). The communication unit (110) converts the information / signals stored in the memory into wireless signals and can directly transmit the converted wireless signals to another wireless device or to a base station. Additionally, the communication unit (110) can receive wireless signals from another wireless device or base station and then restore the received wireless signals to their original information / signals. The restored information / signals can be stored in the memory unit (130) and then output in various forms (e.g., text, voice, image, video, haptic) through the input / output unit (140c).

[0350] The claims described in this specification may be combined in various ways. For example, the technical features of the method claims in this specification may be combined to be implemented as a device, and the technical features of the device claims in this specification may be combined to be implemented as a method. Furthermore, the technical features of the method claims and the technical features of the device claims in this specification may be combined to be implemented as a device, and the technical features of the method claims and the technical features of the device claims in this specification may be combined to be implemented as a method.

Claims

1. Regarding the method, The first device acquires information related to a set of cells for multi-cell scheduling; The first device receives downlink control information including measurement gap cancellation information from the second device; and The first device comprises the step of performing communication at the measurement gap based on the measurement gap cancellation information; wherein A method in which information allowing measurement gap cancellation is set within information related to the set of cells, wherein the measurement gap cancellation information is included in the downlink control information.

2. In Paragraph 1, A method in which the measurement gap cancellation information is omitted from the downlink control information based on the fact that the information allowing the measurement gap cancellation is not set within the information associated with the set of cells.

3. In Paragraph 1, A method in which information that does not allow the above measurement gap cancellation is set within information related to the set of cells, wherein the measurement gap cancellation information is omitted from the downlink control information.

4. In Paragraph 1, A method in which the above downlink control information is control information for uplink scheduling for the set of cells.

5. In Paragraph 1, A method in which the above downlink control information is control information for downlink scheduling for the set of cells.

6. In Paragraph 1, (i) all cells within the set of cells are within the same frequency band, (ii) all cells within the set of cells have the same subcarrier spacing, and (iii) based on information allowing the measurement gap cancellation being set within information related to the set of cells, the measurement gap cancellation information is included in the downlink control information.

7. In Paragraph 1, (i) all cells within the set of cells are within the intra-band, (ii) all cells within the set of cells have the same subcarrier interval, and (iii) based on the information allowing the measurement gap cancellation being set within the information associated with the set of cells, the measurement gap cancellation information is included in the downlink control information.

8. In Paragraph 1, A method in which, based on the above measurement gap cancellation information, among one or more measurement gaps set in the set of cells, the measurement gap is canceled and the communication is performed at the measurement gap.

9. In Paragraph 1, A method in which the above measurement gap is the closest measurement gap after the processing time from the time the downlink control information is received, among one or more measurement gaps set in the set of cells.

10. In Paragraph 1, A method wherein the above measurement gap includes at least one measurement gap included within a time interval after the processing time from the time of receiving the downlink control information, among one or more measurement gaps set in the set of cells.

11. In Paragraph 10, A method in which the processing time and the time interval are set to or pre-set by the first device.

12. In Paragraph 1, A method in which the above measurement gap cancellation information is a 1-bit indicator included in the above downlink control information.

13. In Paragraph 1, A method in which information related to a set of cells for the above multi-cell scheduling is received from the second device through a wireless resource control message.

14. In the first device, At least one transmitter / receiver; At least one processor; and The first device is configured to perform an operation based on the instructions being executed by the at least one processor, wherein the operation comprises: at least one memory connected to the at least one processor and storing instructions, the instructions being executed by the at least one processor. Obtaining information related to a set of cells for multi-cell scheduling; Receiving downlink control information including measurement gap cancellation information from a second device; and Performing communication at the measurement gap based on the above measurement gap cancellation information; including, A first device, wherein information allowing measurement gap cancellation is set within information related to the set of cells, and the measurement gap cancellation information is included in the downlink control information.

15. In a processing device, At least one processor; and The first device is configured to perform an operation based on the instructions being executed by the at least one processor, wherein the operation comprises: at least one memory connected to the at least one processor and storing instructions, the instructions being executed by the at least one processor. Obtaining information related to a set of cells for multi-cell scheduling; Receiving downlink control information including measurement gap cancellation information from a second device; and Performing communication at the measurement gap based on the above measurement gap cancellation information; including, A processing device in which information allowing measurement gap cancellation is set within information related to the set of cells, wherein the measurement gap cancellation information is included in the downlink control information.

16. A non-transient computer-readable storage medium that records instructions, The above commands cause the first device to perform an operation based on execution, wherein the operation is: Obtaining information related to a set of cells for multi-cell scheduling; Receiving downlink control information including measurement gap cancellation information from a second device; and Performing communication at the measurement gap based on the above measurement gap cancellation information; including, A non-transient computer-readable storage medium in which information allowing measurement gap cancellation is set within information associated with the set of cells, wherein the measurement gap cancellation information is included in the downlink control information.

17. Regarding the method, The second device transmits information related to a set of cells for multi-cell scheduling to the first device; The second device transmits downlink control information including measurement gap cancellation information to the first device; and The second device comprises the step of performing communication at the measurement gap based on the measurement gap cancellation information; wherein A method in which information allowing measurement gap cancellation is set within information related to the set of cells, wherein the measurement gap cancellation information is included in the downlink control information.

18. In the second device, At least one transmitter / receiver; At least one processor; and The second device is configured to perform an operation based on the instructions being executed by the at least one processor, wherein the operation comprises: at least one memory connected to the at least one processor and storing instructions, the instructions being executed by the at least one processor. Transmitting information related to a set of cells for multi-cell scheduling to a first device; Transmitting downlink control information including measurement gap cancellation information to the first device; and Performing communication at the measurement gap based on the above measurement gap cancellation information; including, A second device, wherein information allowing measurement gap cancellation is set within information related to the set of cells, and the measurement gap cancellation information is included in the downlink control information.

19. In a processing device, At least one processor; and The second device is configured to perform an operation based on the fact that the instructions are executed by the at least one processor, wherein the operation comprises: at least one memory connected to the at least one processor and storing instructions, the instructions being executed by the at least one processor. Transmitting information related to a set of cells for multi-cell scheduling to a first device; Transmitting downlink control information including measurement gap cancellation information to the first device; and Performing communication at the measurement gap based on the above measurement gap cancellation information; including, A processing device in which information allowing measurement gap cancellation is set within information related to the set of cells, wherein the measurement gap cancellation information is included in the downlink control information.

20. A non-transient computer-readable storage medium that records instructions, The above commands cause the second device to perform an operation based on execution, wherein the operation is: Transmitting information related to a set of cells for multi-cell scheduling to a first device; Transmitting downlink control information including measurement gap cancellation information to the first device; and Performing communication at the measurement gap based on the above measurement gap cancellation information; including, A non-transient computer-readable storage medium in which information allowing measurement gap cancellation is set within information associated with the set of cells, wherein the measurement gap cancellation information is included in the downlink control information.

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