Method and apparatus for performing measurement or communication in measurement gap
The method and device manage transmission and reception during measurement gaps in 6G systems by controlling operations based on retransmission overlap, addressing inefficiencies and complexity in latency-sensitive services like XR.
Patent Information
- Application Number
- PCT/KR2025/004564
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-05-09
- Filing Date
- 2025-04-04
- Publication Date
- 2025-10-09
AI Technical Summary
Existing wireless communication systems face challenges in managing measurement gaps, particularly in 6G systems, which can lead to unscheduled intervals that affect latency-sensitive services like XR, causing complexity and inefficiencies in resource scheduling.
A method and device are proposed to manage transmission and reception operations during measurement gaps by allowing or scheduling them based on whether a retransmission resource overlaps with a first measurement gap, using DCI on the PDCCH to control terminal operations, and enabling efficient use of resources.
This approach enhances the efficiency of resource utilization and reduces complexity by allowing controlled transmission and reception during measurement gaps, ensuring seamless operation for latency-sensitive services.
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Figure KR2025004564_09102025_PF_FP_ABST
Abstract
Description
Method and device for performing measurement or communication in a measurement gap
[0001] The present disclosure relates to a wireless communication system.
[0002] 5G NR, the successor to LTE (long-term evolution), is a new clean-slate mobile communications system characterized by high performance, low latency, and high availability. 5G NR can utilize all available spectrum resources, from low-frequency bands below 1 GHz, mid-frequency bands between 1 GHz and 10 GHz, and high-frequency (millimeter wave) bands above 24 GHz.
[0003] The 6G (wireless communication) system aims to achieve (i) very high data rates per device, (ii) a very large number of connected devices, (iii) global connectivity, (iv) very low latency, (v) low energy consumption for battery-free Internet of Things (IoT) devices, (vi) ultra-reliable connectivity, and (vii) connected intelligence with machine learning capabilities. The vision of the 6G system can be divided into four aspects: intelligent connectivity, deep connectivity, holographic connectivity, and ubiquitous connectivity, and the 6G system can satisfy the requirements as shown in Table 1 below. For example, Table 1 can represent an example of the requirements of a 6G system.
[0004] Maximum data rate per device: 1 Tbps, E2E latency: 1 ms, Maximum spectral efficiency: 100 bps / Hz, Mobility support: Up to 1000 km / hr, Satellite integration: Fully AI, Fully autonomous driving, Fully XR, Fully haptic communication
[0005] According to one embodiment of the present disclosure, a method may be provided. For example, the method may include: obtaining configuration information related to at least one measurement gap; receiving information related to a transmission resource; and receiving information for scheduling a retransmission resource related to the transmission resource. For example, based on whether the retransmission resource overlaps with a first measurement gap, transmission or reception may be permitted in the first measurement gap.
[0006] According to one embodiment of the present disclosure, a device may be provided. For example, the device may include at least one transceiver; at least one processor; and at least one memory coupled to the at least one processor and storing instructions. For example, the instructions, when executed by the at least one processor, may cause the device to: obtain configuration information related to at least one measurement gap; receive information related to a transmission resource; and receive information for scheduling a retransmission resource related to the transmission resource. For example, based on whether the retransmission resource overlaps a first measurement gap, transmission or reception may be permitted in the first measurement gap.
[0007] According to one embodiment of the present disclosure, a processing device configured to control a device may be provided. For example, the processing device may include at least one processor; and at least one memory coupled to the at least one processor and storing instructions. For example, the instructions, based on execution by the at least one processor, may cause the device to: obtain configuration information related to at least one measurement gap; receive information related to a transmission resource; and receive information for scheduling a retransmission resource related to the transmission resource. For example, based on the retransmission resource overlapping a first measurement gap, transmission or reception may be permitted in the first measurement gap.
[0008] According to one embodiment of the present disclosure, a non-transitory computer-readable storage medium having instructions recorded thereon may be provided. For example, the instructions, when executed, may cause a device to: obtain configuration information related to at least one measurement gap; receive information related to a transmission resource; and receive information for scheduling a retransmission resource related to the transmission resource. For example, based on whether the retransmission resource overlaps with a first measurement gap, transmission or reception may be permitted in the first measurement gap.
[0009] Figure 1 illustrates a device-to-device communication procedure according to one embodiment of the present disclosure.
[0010] FIG. 2 illustrates a radio protocol architecture according to one embodiment of the present disclosure.
[0011] FIG. 3 illustrates the structure of a wireless frame according to one embodiment of the present disclosure.
[0012] FIG. 4 illustrates a slot structure of a frame according to one embodiment of the present disclosure.
[0013] FIG. 5 illustrates an example of a BWP according to one embodiment of the present disclosure.
[0014] FIG. 6 illustrates 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 one embodiment of the present disclosure.
[0016] FIG. 8 illustrates a method for a device to perform wireless communication according to an embodiment of the present disclosure.
[0017] FIG. 9 illustrates a method for a base station to perform wireless communication according to one embodiment of the present disclosure.
[0018] FIG. 10 illustrates a communication system (1) according to one embodiment of the present disclosure.
[0019] FIG. 11 illustrates a wireless device according to an embodiment of the present disclosure.
[0020] FIG. 12 illustrates a signal processing circuit for a transmission signal according to one embodiment of the present disclosure.
[0021] FIG. 13 illustrates a wireless device according to an embodiment of the present disclosure.
[0022] FIG. 14 illustrates a mobile device according to one embodiment of the present disclosure.
[0023] FIG. 15 illustrates an XR device according to one embodiment of the present disclosure.
[0024] In this disclosure, "A or B" can mean "only A," "only B," or "both A and B." In other words, "A or B" in this disclosure can be interpreted as "A and / or B." For example, "A, B or C" in this disclosure can mean "only A," "only B," "only C," or "any combination of A, B and C."
[0025] As used herein, a slash ( / ) or a comma may mean "and / or." For example, "A / B" may mean "A and / or B." Accordingly, "A / B" may mean "only A," "only B," or "both A and B." For example, "A, B, C" may mean "A, B, or C."
[0026] In the present disclosure, “at least one of A and B” may mean “only A,” “only B,” or “both A and B.” Additionally, in the present disclosure, the expressions “at least one of A or B” or “at least one of A and / or B” may be interpreted identically to “at least one of A and B.”
[0027] Additionally, in the present disclosure, “at least one of A, B and C” can mean “only A,” “only B,” “only C,” or “any combination of A, B and C.” Additionally, “at least one of A, B or C” or “at least one of A, B and / or C” can mean “at least one of A, B and C.”
[0028] Additionally, parentheses used in the present disclosure may mean "for example." Specifically, when indicated as "control information (PDCCH)", "PDCCH" may be proposed as an example of "control information." In other words, "control information" in the present disclosure is not limited to "PDCCH," and "PDCCH" may be proposed as an example of "control information." Furthermore, even when indicated as "control information (i.e., PDCCH)", "PDCCH" may be proposed as an example of "control information."
[0029] In the following explanation, ‘when, if, in case of’ can be replaced with ‘based on’.
[0030] Technical features individually described in one drawing in this disclosure may be implemented individually or simultaneously.
[0031] In the present disclosure, higher layer parameters may be parameters set for the terminal, preset, or predefined. For example, a base station or network may transmit higher layer parameters to the terminal. For example, the higher layer parameters may be transmitted via radio resource control (RRC) signaling or medium access control (MAC) signaling.
[0032] In the present disclosure, "setting or defining" may be interpreted as being set or preset to a device through predefined signaling (e.g., SIB, MAC, RRC, DCI (downlink control information), etc.) from a base station or a network. In the present disclosure, "setting or defining" may be interpreted as being set or preset to a device through predefined signaling (e.g., MAC, RRC, SCI (sidelink control information), device-to-device signaling control information, etc.) from another device. In the present disclosure, "setting or defining" may be interpreted as being set or preset to a device.
[0033] In the present disclosure, a user equipment (UE) may refer to a device, a portable device, a wireless device, etc. In the present disclosure, a base station (BS) may refer to a radio access network (RAN) node, a non-terrestrial network (NTN) cell / node, a transmission reception point (TRP), a network, an integrated access and backhaul (IAB) node, a device, a portable device, a wireless device, etc.
[0034] The technology proposed in the present disclosure can be used in various wireless communication systems such as CDMA (code division multiple access), FDMA (frequency division multiple access), TDMA (time division multiple access), OFDMA (orthogonal frequency division multiple access), and SC-FDMA (single carrier frequency division multiple access). CDMA can be implemented with wireless technologies such as UTRA (universal terrestrial radio access) or CDMA2000. TDMA can be implemented with wireless technologies such as GSM (global system for mobile communications) / GPRS (general packet radio service) / EDGE (enhanced data rates for GSM evolution). OFDMA can be implemented with wireless technologies such as IEEE (Institute of Electrical and Electronics Engineers) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802-20, E-UTRA (evolved UTRA), LTE (long term evolution), and 5G NR.
[0035] The technology proposed in this disclosure can be implemented with 6G wireless technology and applied to various 6G systems. For example, 6G systems can have key factors such as enhanced mobile broadband (eMBB), ultra-reliable low latency communications (URLLC), massive machine-type communication (mMTC), artificial intelligence (AI) integrated communication, tactile internet, high throughput, high network capacity, high energy efficiency, low backhaul and access network congestion, and enhanced data security.
[0036] FIG. 1 illustrates a device-to-device communication procedure according to one embodiment of the present disclosure. The embodiment of FIG. 1 may be combined with various embodiments of the present disclosure, and some descriptions, functions, procedures, proposals, methods, and / or operations of the embodiments may be omitted.
[0037] Referring to FIG. 1, in step S101, a first device and a second device can perform synchronization. For example, the first device can be a terminal and / or at least one of the devices proposed in the present disclosure. For example, the second device can be a base station, a network, a RAN node, an NTN node / cell, a TRP, a terminal and / or at least one of the devices proposed in the present disclosure. For example, the first device can perform an initial cell search operation. For example, the first device can detect at least one synchronization signal transmitted by the second device according to a predefined rule. Here, for example, the synchronization signal can include a plurality of synchronization signals classified according to a structure or purpose (e.g., a primary synchronization signal, a secondary synchronization signal, etc.). Through this, the first device can identify the boundaries of the frame, subframe, time unit, slot, and / or symbol of the second device, and the first device can obtain information about the second device (e.g., a cell identifier).
[0038] In step S103, the first device can obtain system information transmitted by the second device. For example, the system information may include information related to the properties, characteristics, and / or capabilities of the second device required to connect to the second device and use the service. For example, the system information may be classified according to content (e.g., whether it is essential for connection), transmission structure (e.g., the channel used, whether it is provided on-demand), etc. For example, the system information may be classified into a master information block (MIB) and a system information block (SIB). For example, if necessary, the first device may transmit a signal requesting system information before receiving the system information. For example, the request and provision of system information may be performed after a random access procedure described below.
[0039] In step S105, the first device and the second device can perform a random access procedure. For example, the first device can transmit and / or receive at least one message (e.g., a random access preamble, a random access response message, etc.) for the random access procedure based on information related to a random access channel of the second device obtained through system information (e.g., channel location, channel structure, structure of supported preamble, etc.). For example, the first device can transmit a preamble (e.g., Msg1) through the random access channel, the first device can receive a random access response message (e.g., Msg2), the first device can transmit a message (e.g., Msg3) including information related to the first device (e.g., identification information) to the second device using scheduling information included in the random access response message, and the first device can receive a message (e.g., Msg4) for contention resolution and / or connection establishment. For example, Msg1 and Msg3 can be sent and received as one message (e.g., MsgA), and / or Msg2 and Msg4 can be sent and received as one message (e.g., MsgB).
[0040] In step S107, the first device and the second device may perform signaling of control information. Here, for example, the control information may be defined in various layers, such as a layer that controls a connection (e.g., a radio resource control (RRC) layer), a layer that handles mapping between logical channels and transport channels (e.g., a media access control (MAC) layer), a layer that handles physical channels (e.g., a physical (PHY) layer), etc. For example, the first device and the second device may perform at least one of signaling for establishing a connection, signaling for determining settings related to communication, and / or signaling for indicating allocated resources. For example, the control information may be signaled / transmitted via a control channel. For example, the control information and / or the control channel may be used to schedule at least one of data, a data channel (e.g., a shared channel), and / or control information on the data channel.
[0041] In step S109, the first device and the second device may transmit and / or receive data. For example, the first device and the second device may process, transmit, and / or receive data based on signaling of control information. For example, when transmitting data, the first device or the second device may perform at least one of channel encoding, rate matching, scrambling, constellation mapping, layer mapping, waveform modulation, antenna mapping, and / or resource mapping on the information bits. For example, when receiving data, the first device or the second device may perform at least one of signal extraction from resources, waveform demodulation for each antenna, signal arrangement considering layer mapping, constellation demapping, descrambling, and / or channel decoding.
[0042] For example, the layers of a radio interface protocol between a first device and a second device can be divided into L1 (layer 1), L2 (layer 2), L3 (layer 3), etc. For example, a physical layer belonging to the first layer can provide an information transfer service using a physical channel, and an RRC (radio resource control) layer located in the third layer can play a role in controlling radio resources between the first device and the second device. For this purpose, for example, the RRC layer can exchange RRC messages between the first device and the second device.
[0043] FIG. 2 illustrates a radio protocol architecture according to an 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 the embodiments may be omitted. For example, (a) of FIG. 2 may illustrate a radio protocol stack of a user plane for uplink communication or downlink communication, and (b) of FIG. 2 may illustrate a radio protocol stack of a control plane for uplink communication or downlink communication. For example, (c) of FIG. 2 may illustrate a radio protocol stack of a user plane for device-to-device communication, and (d) of FIG. 2 may illustrate a radio protocol stack of a control plane for device-to-device communication.
[0044] For example, the physical layer can provide information transmission services to upper layers using physical channels. For example, the physical layer can be connected to the upper layer, the medium access control (MAC) layer, through a transport channel. For example, data can be transmitted between the MAC layer and the physical layer through the transport channel. For example, transport channels can be classified according to how and with what characteristics data is transmitted over the wireless interface. For example, data can be transmitted between different physical layers, for example, between the physical layers of a first device and a second device, through a physical channel. For example, the physical channel can be modulated using an orthogonal frequency division multiplexing (OFDM) scheme, and time and frequency can be utilized as radio resources.
[0045] For example, the MAC layer can provide services to the upper layer, the radio link control (RLC) layer, through logical channels. For example, the MAC layer can provide a mapping function from multiple logical channels to multiple transport channels. For example, the MAC layer can provide a logical channel multiplexing function by mapping multiple logical channels to a single transport channel. For example, the MAC sublayer can provide data transmission services on logical channels.
[0046] For example, the RLC layer can perform concatenation, segmentation, and reassembly of RLC service data units (SDUs). For example, to guarantee the various quality of service (QoS) required by radio bearers (RBs), the RLC layer can provide three operating modes: transparent mode (TM), unacknowledged mode (UM), and acknowledged mode (AM). For example, AM RLC can provide error correction through automatic repeat request (ARQ).
[0047] For example, the RRC (radio resource control) layer can be defined only in the control plane. For example, the RRC layer can be responsible for controlling logical channels, transport channels, and physical channels in relation to the configuration, re-configuration, and release of radio bearers. For example, an RB can mean a logical path provided by a first layer (e.g., a physical layer) and a second layer (e.g., a MAC layer, an RLC layer, a PDCP (packet data convergence protocol) layer, a SDAP (service data adaptation protocol) layer, etc.) for data transmission between a first device and a second device.
[0048] For example, the functions of the PDCP layer in the user plane may include forwarding of user data, header compression, and ciphering. For example, the functions of the PDCP layer in the control plane may include forwarding of control plane data and ciphering / integrity protection.
[0049] For example, establishing an RB can refer to the process of defining the characteristics of the radio protocol layer and channel to provide a specific service, and setting specific parameters and operating methods for each. For example, RBs can be divided into two types: signaling radio bearers (SRBs) and data radio bearers (DRBs). For example, SRBs can be used as a channel to transmit RRC messages in the control plane, while DRBs can be used as a channel to transmit user data in the user plane.
[0050] For example, a downlink transmission channel may include at least one of a broadcast channel (BCH) for transmitting system information, and / or a downlink shared channel (SCH) for transmitting user traffic or control messages. For example, traffic or control messages of a downlink multicast or broadcast service may be transmitted through the downlink SCH, or may be transmitted through a separate downlink multicast channel (MCH). Meanwhile, an uplink transmission channel may include at least one of a random access channel (RACH) for transmitting initial control messages, and / or an uplink shared channel (SCH) for transmitting user traffic or control messages. For example, a logical channel located above a transmission channel and mapped to the transmission channel may include at least one of a broadcast control channel (BCCH), a paging control channel (PCCH), a common control channel (CCCH), a multicast control channel (MCCH), and / or a multicast traffic channel (MTCH).
[0051] FIG. 3 illustrates the structure of a wireless frame according to an 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.
[0052] Referring to FIG. 3, for example, a radio frame may be used 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 include five 1 ms subframes (SF). For example, a subframe may be divided into one or more slots, and the number of slots within a subframe may be determined according to a subcarrier spacing (SCS). For example, each slot may include 12 or 14 OFDM (A) symbols, depending on a cyclic prefix (CP).
[0053] For example, when normal CP is used, each slot can contain 14 symbols. For example, when extended CP is used, each slot can contain 12 symbols. Here, for example, the symbols can contain OFDM symbols (or CP-OFDM symbols), SC-FDMA (single carrier-FDMA) symbols (or DFT-s-OFDM (Discrete Fourier Transform-spread-OFDM) symbols).
[0054] Table 2 below shows the number of symbols per slot (N) depending on the SCS setting (u) when normal CP or extended CP is used. slot symb ), number of slots per frame (N frame,u slot ) and the number of slots per subframe (N subframe,u slot) is an example.
[0055] CP type SCS (15*2 u )N slot symb N frame,u slot N subframe,u slot Normal CP15kHz (u=0)1410130kHz (u=1)1420260kHz (u=2)14404120kHz (u=3)14808240kHz (u=4)1416016Extended CP60kHz (u=2)12404
[0056] For example, OFDM(A) numerology (e.g., SCS, CP length, etc.) may be set differently between multiple cells that are merged into a single terminal. Accordingly, the (absolute time) interval of time resources (e.g., subframes, slots, or transmit time intervals (TTIs)) composed of the same number of symbols may be set differently between the merged cells. For example, in the present disclosure, time resources such as subframes, slots, TTIs, etc. may be referred to as time units.
[0057] For example, multiple numerologies, or SCSs, may be supported to support various services. For example, a 15 kHz SCS may support wide areas in traditional cellular bands, while a 30 kHz / 60 kHz SCS may support dense urban areas, lower latency, and wider carrier bandwidth. For example, a 60 kHz or higher SCS may support bandwidths greater than 24.25 GHz to overcome phase noise.
[0058] FIG. 4 illustrates a slot structure of a frame according to an 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, proposals, methods, and / or operations of the embodiments may be omitted.
[0059] Referring to FIG. 4, for example, a slot may include multiple symbols in the time domain. For example, a carrier may include multiple subcarriers in the frequency domain. For example, a resource block (RB) may be defined as multiple consecutive subcarriers in the frequency domain. For example, a bandwidth part (BWP) may be defined as multiple consecutive (P)RBs ((physical) resource blocks) in the frequency domain, and may correspond to one numerology (e.g., SCS, CP length, etc.). For example, a carrier may include at most N BWPs (where N is a positive integer). For example, data communication may be performed through an activated BWP. For example, each element may be referred to as a resource element (RE) in the resource grid, and one complex symbol may be mapped to it.
[0060] For example, a BWP may be a contiguous set of PRBs in a given numerology. For example, a PRB may be selected from a contiguous subset of common resource blocks (CRBs) for a given numerology on a given carrier.
[0061] For example, the BWP may be at least one of an active BWP, an initial BWP, and / or a default BWP. For example, the UE may not monitor the downlink radio link quality in a DL BWP other than the active DL BWP on the PCell (primary cell). For example, the UE may not receive a physical downlink control channel (PDCCH), a physical downlink shared channel (PDSCH), or a channel state information-reference signal (CSI-RS) (except for radio resource management (RRM)) outside of the active DL BWP. For example, the UE may not trigger channel state information (CSI) reporting for an inactive DL BWP. For example, the UE may not transmit a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH) outside of the active UL BWP. For example, for downlink, the initial BWP can be given as a set of consecutive resource blocks (RBs) for the remaining minimum system information (RMSI) CORESET (control resource set) (set by the physical broadcast channel (PBCH)). For uplink, for example, the initial BWP can be given by the system information block (SIB) for the random access procedure. For example, the default BWP can be set by a higher layer. For example, the initial value of the default BWP can be the initial DL BWP.For energy saving, if a terminal does not detect DCI (downlink control information) for a certain period of time, the terminal may switch its active BWP to a default BWP.
[0062] 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.
[0063] Referring to FIG. 5, for example, a common resource block (CRB) may be a carrier resource block numbered from one end of a carrier band to the other, and a PRB may be a numbered resource block within each BWP. For example, point A may indicate a common reference point for a resource block grid.
[0064] For example, BWP is point A, offset from point A (N start BWP ) and bandwidth (N size BWP ) can be set by. For example, point A can be an outer reference point of the PRB of a carrier where subcarrier 0 of all numerologies (e.g., all numerologies supported by the network on that carrier) aligns. For example, the offset can be the PRB spacing between the lowest subcarrier in a given numerology and point A. For example, the bandwidth can be the number of PRBs in a given numerology.
[0065] FIG. 6 illustrates a communication structure that can be provided in a 6G system according to an embodiment of the present disclosure. The embodiment of FIG. 6 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.
[0066] As core implementation technologies of the 6G system, technologies such as artificial intelligence (AI), THz (terahertz) communication, optical wireless technology, free-space optical transmission (FSO) backhaul networks, massive MIMO (multiple input multiple output) technology, blockchain, 3D networking, quantum communication, unmanned aerial vehicles, cell-free communication, wireless information and energy transfer (WIET), integration of sensing and communication, integration of access backhaul networks, holographic beamforming, big data analysis, and large intelligent surface (LIS) can be adopted.
[0067] - Artificial Intelligence: Incorporating AI into communications can streamline and improve real-time data transmission. AI can use numerous analytics to determine how complex target tasks should be performed. For example, AI can increase efficiency and reduce processing delays. Time-consuming tasks such as handovers, network selection, and resource scheduling can be performed instantly using AI. AI can also play a crucial role in machine-to-machine (M2M), machine-to-human, and human-to-machine communications. AI can also facilitate rapid communication in brain-computer interfaces (BCIs). AI-based communication systems can be supported by metamaterials, intelligent structures, intelligent networks, intelligent devices, intelligent cognitive radios, self-sustaining wireless networks, and machine learning.
[0068] - THz communication (terahertz communication): Data rates can be increased by increasing the bandwidth. This can be achieved by using sub-THz communication with wide bandwidths and applying advanced massive MIMO technology. THz waves, also known as sub-millimeter waves, typically refer to the frequency range between 0.1 THz and 10 THz, with corresponding wavelengths ranging from 0.03 mm to 3 mm. The 100 GHz to 300 GHz band (sub-THz band) is considered a key part of the THz spectrum for cellular communications. Adding the sub-THz band to the mmWave band will increase the capacity of 6G cellular communications. Among the defined THz bands, 300 GHz to 3 THz lies in the far infrared (IR) frequency band. While part of the optical band, the 300 GHz to 3 THz band lies at the boundary of the optical band, immediately following the RF band. Therefore, this 300 GHz to 3 THz band exhibits similarities to RF. Key characteristics of THz communications include (i) the widely available bandwidth to support very high data rates and (ii) the high path loss that occurs at high frequencies (requiring highly directional antennas). The narrow beamwidths generated by highly directional antennas reduce interference. The small wavelength of THz signals allows for a significantly larger number of antenna elements to be integrated into devices and base stations operating in this band. This enables the use of advanced adaptive array technologies to overcome range limitations.
[0069] - Large-scale MIMO technology
[0070] - Hologram beamforming (HBF)
[0071] - Optical wireless technology
[0072] - Free-space optical transmission backhaul network (FSO backhaul network)
[0073] - Quantum communication
[0074] - Cell-free communication
[0075] - Integration of wireless information and power transmission
[0076] - Integration of wireless communication and sensing
[0077] - Integrated access and backhaul network
[0078] - Big data analysis
[0079] - Reconfigurable intelligent surface
[0080] - metaverse
[0081] - Blockchain
[0082] Advanced Air Mobility (AAM): AAM can be a broad concept encompassing urban air mobility (UAM), regional air mobility (RAM), and uncrewed aerial systems (UAS). For example, AAM can include UAM, RAM, UAS, and uncrewed aerial vehicles (UAVs).
[0083] - Autonomous driving (self-driving): V2X (vehicle to everything), a key element in building autonomous driving infrastructure, can be a technology that allows cars to communicate and share with various elements on the road for autonomous driving, such as vehicle to vehicle (V2V) wireless communication and vehicle to infrastructure (V2I) wireless communication.
[0084] Non-terrestrial network (NTN): NTN can refer to a network or network segment that utilizes radio frequency (RF) resources mounted on satellites (or UAS platforms). NTN services may be considered to secure wider coverage or provide wireless communication services in locations where the installation of wireless communication base stations is difficult.
[0085] - 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.
[0086] - Reconfigurable intelligent surface (RIS): RIS can be used to manipulate and enhance signal propagation in wireless communication environments. For example, a RIS can be composed of many small antennas, or metasurfaces, arranged on a surface, each of which can actively control the phase, amplitude, polarization, etc. of the reflected signal. For example, a RIS can improve signal reception by controlling the path, phase, and / or intensity of the propagating signal. For example, in the case of a RIS, power consumption can be very low because power is consumed only for controlling the phase and amplitude of the small antennas. For example, because a RIS can be reconfigured to suit different environments, it can meet diverse communication requirements and operate effectively in dynamic network environments.
[0087] 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.
[0088] Referring to FIG. 7, NTN communication can be performed based on satellite networks, high-altitude platform stations (HAPS) as international mobile telecommunications (IMT) base stations (BS), and terminals capable of aerial communication (e.g., AAMs). For example, to improve coverage, etc., devices such as satellite networks, HIBS, and terminals capable of aerial communication (e.g., AAMs) can act as relays. For example, an AAM can communicate with a base station, a satellite network, etc., and / or an AAM can communicate directly with a terminal, another AAM, etc.
[0089] Meanwhile, in the NR system, a terminal can be configured with a measurement gap (MG) for intra-cell or inter-cell measurements from a base station. A terminal that has explicitly been configured with an MG may not expect PUCCH / PUSCH / SRS (sounding reference signal) transmission or PDCCH / PDSCH / CSI-RS reception during the MG period, especially when the measurement is based on SSB (synchronization signal block) reception. For example, the terminal does not expect to transmit PUCCH / PUSCH / SRS or receive PDCCH / PDSCH / CSI-RS. When the base station configures an MG for the terminal based on the timing of SSB reception, the terminal can typically have an MG period every 20 ms, and each MG period can have a length of 1 to 5 ms. If there is an MG period of 5 ms for every 20 ms period, the terminal may not be able to perform PUCCH / PUSCH / SRS transmission or PDCCH / PDSCH / CSI-RS reception for 5 ms every 20 ms, which may affect the availability of the terminal.
[0090] Meanwhile, when using XR (eXtended Reality) services that are sensitive to latency, the unschedulable intervals due to MG can cause greater problems. For example, a terminal that has been configured with semi-persistent scheduling (SPS) / configured grant (CG) radio resources from a base station to receive or transmit periodic sensor information may not be able to perform SPS / CG transmissions if the MG interval and the SPS / CG transmission opportunity overlap. For example, the settings that bring about scheduling restrictions or measurement gap settings can be very diverse, and the operation of skipping / cancelling one of them based on the time when the terminal receives control information from the base station can cause unnecessary complexity.
[0091] Considering these points, we can consider the operation between the terminal and the base station, which allows transmission on the MG according to certain criteria. This control can be achieved through DCI on the PDCCH. Meanwhile, to control the terminal operation on the MG after receiving the DCI, a PDCCH at an appropriate location that takes into account the terminal's processing time may be required. For example, a PDCCH at an appropriate location may be required to control the terminal operation on various MGs established / occurring within the cell.
[0092] For example, the PDCCH can carry DCI. For example, the PCCCH (e.g., DCI) can carry the transmission format and resource allocation of the downlink shared channel (DL-SCH), frequency / time resource allocation information for the uplink shared channel (UL-SCH), paging information for the paging channel (PCH), system information on the DL-SCH, frequency / time resource allocation information for upper layer control messages such as the random access response (RAR) transmitted on the PDSCH, transmission power control commands, information regarding activation / release of configured scheduling (SPS / CS), etc. For example, various DCI formats can be provided depending on the information in the DCI.
[0093] Table 3 illustrates DCI formats transmitted via PDCCH.
[0094] DCI formatUsage0_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)1_0Scheduling of PDSCH in one cell1_1Scheduling of PDSCH in one cell, and / or triggering one shot HARQ-ACK codebook feedback2_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 UEs
[0095] For example, DCI format 0_0 can be used to schedule a TB-based (or TB-level) PUSCH, and DCI format 0_1 can be used to schedule a TB-based (or TB-level) PUSCH or a CBG (code block group)-based (or CBG-level) PUSCH. For example, DCI format 1_0 can be used to schedule a TB-based (or TB-level) PDSCH, and DCI format 1_1 can be used to schedule a TB-based (or TB-level) PDSCH or a CBG-based (or CBG-level) PDSCH. For example, DCI format 0_0 / 0_1 can be referred to as UL grant DCI or UL scheduling information, and DCI format 1_0 / 1_1 can be referred to as DL grant DCI or UL scheduling information. For example, DCI format 2_0 can be used to convey dynamic slot format information (e.g., dynamic SFI) to the terminal, and DCI format 2_1 can be used to convey downlink pre-emption information to the terminal. For example, DCI format 2_0 and / or DCI format 2_1 can be conveyed to the terminals within a group via a group common PDCCH, which is a PDCCH conveyed to the terminals defined as a group.
[0096] For example, the PDCCH / DCI may include a cyclic redundancy check (CRC), and the CRC may be masked / scrambled with various identifiers (e.g., radio network temporary identifier, RNTI) depending on the owner or usage of the PDCCH. For example, if the PDCCH is for a specific terminal, the CRC may be masked with a cell-RNTI (C-RNTI). For example, if the PDCCH is for paging, the CRC may be masked with a paging-RNTI (P-RNTI). For example, if the PDCCH is for system information (e.g., a system information block, SIB), the CRC may be masked with a system information RNTI (SI-RNTI). For example, if the PDCCH is for a random access response, the CRC may be masked with a random access-RNTI (RA-RNTI).
[0097] In this disclosure, for convenience of explanation, examples are provided based on the NR system. However, the proposed methods are not limited to specific NR transmission and reception formats unless otherwise specified. Furthermore, in this disclosure, for convenience of explanation, examples are provided based on the characteristics and structure of XR services. However, the proposed methods are not limited to specific support of XR services unless otherwise specified. Therefore, it is self-evident that the methods proposed in this disclosure can be applied to all wireless communication transmission and reception structures and services, even without a separate description.
[0098] In the present disclosure, MG may refer to not only an MG for inter-cell measurements, but also SMTC (SSB measurement timing) settings set for intra-cell / intra-frequency measurements, time window settings that cause scheduling restrictions, etc. For example, MG may include at least one of the following sections:
[0099] - Measurement gaps in NR inter / intra-frequency RRM measurement
[0100] - Measurement gaps in inter RAT RRM measurement
[0101] - Scheduling restriction in NR inter / intra-frequency RRM measurement without measurement gap
[0102] - Scheduling restriction in L1-RSRP measurement for reporting
[0103] - RLM (radio link monitoring) measurement
[0104] - Beam failure detection measurements
[0105] - Network controlled small gap (NCSG) where there are two interruptions in each NCSG occasion and scheduling restrictions apply during measurement length (ML) of the NCSG occasion
[0106] - Multi-universal subscriber identity module (MUSIM) gaps resulting from one or more per-UE MUSIM gap patterns and used for MUSIM purpose
[0107] - UL gaps for Tx power management, applicable only for NR FR2
[0108] In the present disclosure, a terminal can be configured with an intra-cell or inter-cell measurement gap (MG) from a base station, and the terminal can periodically perform measurements on an adjacent cell or a current serving cell on the MG for purposes such as RRM. In this case, when the terminal is instructed or configured by the base station to transmit or receive one or more scheduling for an XR service on the MG, or when transmission or reception on a specific MG is allowed and measurement operations on a specific MG are prevented if necessary, a method for controlling transmission / reception and measurement operations on the MG through signaling for controlling this is proposed, and a device supporting the same.
[0109] For example, for this purpose, 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 is transmitted in response to a PDSCH reception result, and a method in which a retransmission DCI of the base station is received through a PDCCH after a PUSCH transmission. In addition, for example, the proposed method may include a process in which a terminal transmits a signal and channel to inform its capabilities and / or service requirements, and a process in which the base station receives the signal and channel.
[0110] For example, a terminal can receive an MG section for RRM, etc. from a base station through RRC signaling. At this time, for example, a shared measurement gap index can be set together with an RRC information element (IE) that sets each MG section. For example, such an index can be set for at least one of the configurations that bring about the scheduling restrictions below or the measurement gap configurations. For example, each set index can be unique in the configurations that bring about the scheduling restrictions below or the measurement gap configurations. For example, regardless of the type of configurations that bring about the scheduling restrictions that can be set through RRC signaling or the measurement gap configurations, a shared measurement gap index that shares one domain can be added to each configuration.
[0111] - Measurement gaps in NR inter / intra-frequency RRM measurement
[0112] - Measurement gaps in inter RAT RRM measurement
[0113] - Scheduling restriction in NR inter / intra-frequency RRM measurement without measurement gap
[0114] - Scheduling restriction in L1-RSRP measurement for reporting
[0115] - NCSG where there are two interruptions in each NCSG occasion and scheduling restrictions apply during ML of the NCSG occasion
[0116] - MUSIM gaps resulting from one or more per-UE MUSIM gap patterns and used for MUSIM purpose
[0117] Additionally, for example, the terminal may receive a scheduling message or SPS / CG configuration for PDSCH reception or PUSCH transmission on the MG section from the base station.
[0118] For example, the terminal may receive signaling to allow reception / transmission on the MG section and, if necessary, prevent measurement via PDCCH, MAC-CE (control element), or RRC message. For example, if the terminal receives signaling to allow reception / transmission on the MG section via PDCCH, MAC-CE, or RRC message, the terminal may allow continuous reception / transmission in all or part of a specific MG section, or may allow reception / transmission in all or part of a nearby MG section, based on the content contained in the signaling and the proposed method. In addition, for example, measurement operation of the terminal on the corresponding MG section may be prevented.
[0119] The method proposed in this disclosure may be applied by selecting any of the following methods. For example, each method may operate independently without separate combinations, or one or more methods may be combined and operated in a linked manner. Some terms, symbols, and sequences used for explanation may be replaced with other terms, symbols, and sequences, as long as the proposed principles are maintained.
[0120] The method proposed in the present disclosure may be determined to be applied only when the terminal receives related configuration information from the base station (or core network), and at this time, a higher layer signal (e.g., SIB or RRC signaling) may be used for the 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 together. In addition, for example, the terminal may report information (e.g., capability) on whether the proposed method is supportable, and the base station (or core network) may be determined to receive the same.
[0121] Proposal 1: Shared gap index for various gaps / restrictions
[0122] For example, to efficiently manage various measurement gaps and scheduling constraints, the concept of a shared measurement gap index could be considered. For example, if a terminal is unable to perform uplink transmission and / or downlink reception during a time interval designated for measurement, etc., an identifier indicating each time interval could be set via higher-layer signaling to control this.
[0123] Specifically, for example, when a base station configures an MG section for RRM, etc. to a terminal via RRC signaling, the base station may transmit a shared measurement gap index together with the RRC IE configuring each MG section. For example, the shared measurement gap index may be configured for at least one of the configurations that bring about the scheduling restrictions below or the measurement gap configurations.
[0124] - Measurement gaps in NR inter / intra-frequency RRM measurement
[0125] - Measurement gaps in inter RAT RRM measurement
[0126] - Scheduling restriction in NR inter / intra-frequency RRM measurement without measurement gap
[0127] - Scheduling restriction in L1-RSRP measurement for reporting
[0128] - NCSG where there are two interruptions in each NCSG occasion and scheduling restrictions apply during ML of the NCSG occasion
[0129] - MUSIM gaps resulting from one or more per-UE MUSIM gap patterns and used for MUSIM purpose
[0130] For example, this can share a single shared measurement gap index domain, regardless of the type of configuration or measurement gap configuration that brings scheduling restrictions that can be set via RRC signaling. For example, each configured shared measurement gap index can have a unique value within the configuration or measurement gap configuration that brings the corresponding scheduling restrictions. For example, this allows various types of measurement gap and scheduling restriction configurations to be integrated and indicated by a shared measurement gap index.
[0131] For example, if the shared measurement gap index is set to a first value (e.g., zero or a (pre-)configured value), none of the settings that bring scheduling restrictions and / or the measurement gap settings may be canceled. In this case, measurements may be performed and / or transmission or reception may not be permitted, for example, within a time interval set based on the settings that bring scheduling restrictions and / or the measurement gap settings.
[0132] For example, if the shared measurement gap index is set to a second value (e.g., zero or a value other than a pre-set value), the configuration and / or measurement gap configuration that brings scheduling restrictions associated with said second value may be canceled. In this case, for example, measurements may be omitted and / or transmission or reception may be permitted within a time interval set based on the configuration and / or measurement gap configuration that brings scheduling restrictions associated with said second value.
[0133] Proposal 2: DCI format for measurement gap control
[0134] For example, in order to control terminal operation on the MG through a shared measurement gap index, the base station may transmit the shared measurement gap index to the terminal as a field in the DCI format. For example, this may be in the form of an additional field added to the existing DCI formats 0_0, 0_1, 0_2, 1_0, 1_1, 1_2, and the DCI fields suggested below may be repeated one or more times consecutively for a group configured such as group-common DCI.
[0135] For example, the DCI format may include at least one of the following fields:
[0136] (1) Shared Measurement Gap Index Field: For example, this may be a field indicating the index of the MG / restriction to be controlled. For example, the shared measurement gap index proposed in Proposal 1 may be indicated via DCI and may indicate the MG to be controlled. For this purpose, for example, the base station may configure in advance to the terminal via upper layer signaling, such as RRC, which index corresponds to / maps to which type of MG / restriction (among the configurations bringing the scheduling restriction or the measurement gap configurations).
[0137] (2) Terminal operation instruction field: For example, this can have the following values as 1 bit of information.
[0138] - "On" (bit value 0): For example, uplink transmission and downlink reception may be suspended and measurement operations may be performed in the MG / restricted interval specified / corresponding to the index. Or, for example, the terminal may perform operations (such as measurements) while considering / assuming that there is no scheduling / instruction for uplink transmission and downlink reception in the MG / restricted interval as before.
[0139] - "cancel / skip" (bit value 1): For example, the measurement operation may be skipped in the MG / restricted interval specified / corresponding to the index, 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 MG / restricted interval (skipping the measurement operation).
[0140] Alternatively, for example, conversely, a bit value of 0 could indicate the "cancel / skip" action, and a bit value of 1 could indicate the "on" action.
[0141] (3) Terminal operation application point field: For example, this may be an (optional) field for detailed settings for transmission / reception on the MG.
[0142] - T1 (optional): For example, this may be the symbol length from the PDCCH transmitting the DCI format to the first time point (the start of the MG / restricted interval) at which a terminal action instruction is applied. For example, this may be the time it takes for the terminal to receive and process the MG control message. Alternatively, for example, the action indicated through the "terminal action instruction field" may be applied / performed from the nearest MG / restricted interval including / after the time indicated through the T1 field.
[0143] - T2 (optional): For example, this is the length of the time interval to which the terminal operation instruction applies, and may indicate the number of symbols / slots / subframes or the number K of MGs to which the terminal operation instruction applies.
[0144] For example, based on the index value included in the DCI format, the terminal may apply the terminal operation indicated above to the MG section or scheduling restriction corresponding to the index. For example, a cancel / skip indicator may be applied to the corresponding first MG after a certain time T1 from the last symbol of the PDCCH on which the DCI format is received. For example, a cancel / skip indicator may be applied to K consecutive MG sections from the start time of the corresponding MG section after a certain time T1 from the last symbol of the PDCCH on which the DCI format is 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 on which the DCI format is received. For example, the cancel / skip indicator may be applied to all corresponding MGs after a certain time T1 from the last symbol of the PDCCH on which the DCI format is received until the terminal operation indication is indicated again. For example, the DCI format may be applied to all corresponding MG intervals starting from a certain time T1 after the last symbol of the received PDCCH until the terminal operation instruction is again instructed.
[0145] For example, for a periodic MG, the base station can update the control information every cycle by transmitting the DCI format at the start of the MG.
[0146] For example, in each example, T1 and / or T2 may be indicated via the DCI format as described above, may be set via higher layer signaling, may be a predefined value, or may be a value reported via the capability report of the terminal. For example, T1 and T2 may be jointly coded and transmitted via a single field.
[0147] For example, by dynamically transmitting MG control information via DCI format, the terminal can quickly apply MG intervals or scheduling restrictions.
[0148] For example, in the above DCI format field configuration, a 1-bit terminal operation indication field can be replaced with an N-bit terminal operation indication field to support slot-by-slot control within the MG section. For example, each bit within the terminal operation indication field can be utilized to indicate each slot within the section rather than the entire MG section. For example, when the MG section is composed of multiple slots, each bit within the terminal operation indication field can indicate whether to cancel / 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.
[0149] For example, in the above DCI format field configuration, instead of a 1-bit terminal operation indication field, an N-bit cancel / skip indicator can be used to indicate an operation status for consecutive slots or MG sections. For example, if 0 is indicated, consecutive slots or MG sections can be in an "on" state, and if a non-zero value is indicated, consecutive slots or MG sections corresponding to the indicated value can be in a "cancel / skip" state. Through this, it may be possible to perform a measurement operation or restrict transmission / reception only for some consecutive slots within an MG section, for example.
[0150] This allows, for example, a base station to more precisely control measurement operations and transmission / reception operations on a slot-by-slot basis within an MG interval. For example, the N value may be a predefined value or set via higher-layer signaling.
[0151] Proposal 3: MAC-CE for measurement gap skipping / canceling
[0152] For example, to control terminal operation on the MG through a shared measurement gap index, the base station can include the shared measurement gap index in the MAC-CE and transmit it to the terminal.
[0153] For example, a MAC-CE may contain at least one of the following fields:
[0154] (1) Shared Measurement Gap Index Field: For example, this may be a field indicating the index of the MG / restriction to be controlled. For example, the shared measurement gap index proposed in Proposal 1 may be indicated via MAC-CE and may indicate the MG to be controlled. For this purpose, for example, the base station may configure in advance to the terminal via upper layer signaling, such as RRC, which index corresponds to / maps to which type of MG / restriction (among the configurations bringing the scheduling restriction or the measurement gap configurations).
[0155] (2) Terminal operation instruction field: For example, this can have the following values as 1 bit or N bits of information.
[0156] - "On" (bit value 0): For example, uplink transmission and downlink reception may be suspended and measurement operations may be performed in the MG / restricted interval specified / corresponding to the above index. Or, for example, the terminal may perform operations (such as measurements) while considering / assuming that there is no scheduling / instruction for uplink transmission and downlink reception in the MG / restricted interval as before.
[0157] - "Cancel / Skip" (bit value 1): For example, the measurement operation may be skipped in the MG / restricted interval specified / corresponding to the index, and uplink transmission and downlink reception may be performed normally. Or, for example, the terminal may expect / monitor scheduling / instructions for uplink transmission and downlink reception (skipping the measurement operation) in the corresponding MG / restricted interval.
[0158] Alternatively, for example, conversely, a bit value of 0 could indicate the "cancel / skip" action, and a bit value of 1 could indicate the "on" action.
[0159] For example, if a field of N bits is used, each bit can indicate whether to cancel / skip for an individual slot within the MG interval.
[0160] (3) Terminal operation application point field: For example, this may be an (optional) field for detailed settings for transmission / reception on the MG.
[0161] - T1 (optional): For example, this is a value indicating the start time of the first MG / restricted interval to which the terminal operation instruction included in the MAC-CE is applied, and can be expressed as a combination of the number of system frames from SFN0 (system frame number 0), the number of subframes, and / or the number of slots. Or, for example, the operation indicated through the terminal operation instruction field can be applied / performed from the nearest MG / restricted interval including / after the time indicated through the T1 field.
[0162] - T2 (optional): For example, this is the length of the time interval to which the terminal operation instruction applies, and may indicate the number of slots / subframes or the number of MGs to which the terminal operation instruction applies.
[0163] For example, the terminal can apply the terminal operation instruction received through MAC-CE from the time indicated in T1 to T2 (or as many times as the number of MGs indicated in T2).
[0164] For example, by transmitting MG control information via MAC-CE, signaling overhead compared to the DCI format can be reduced. For example, in the case of a periodic MG, the base station can update control information every cycle by transmitting a MAC-CE at the start of the MG.
[0165] For example, in the above MAC-CE field configuration, a 1-bit terminal operation indication field can be replaced with an N-bit terminal operation indication field to support slot-by-slot control within the MG section. For example, each bit within the terminal operation indication field can be utilized to indicate each slot within the section rather than the entire MG section. For example, when the MG section is composed of multiple slots, each bit within the terminal operation indication field can indicate whether to cancel / 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.
[0166] For example, in the above MAC-CE field configuration, instead of a 1-bit terminal operation indication field, an N-bit cancel / skip indicator can be used to indicate an operation status for consecutive slots or MG sections. For example, if 0 is indicated, consecutive slots or MG sections can be in an "on" state, and if a non-zero value is indicated, consecutive slots or MG sections corresponding to the indicated value can be in a "cancel / skip" state. Through this, it may be possible to perform a measurement operation or restrict transmission / reception only for some consecutive slots within an MG section, for example.
[0167] This allows, for example, a base station to more precisely control measurement operations and transmission / reception operations on a slot-by-slot basis within an MG interval. For example, the N value may be a predefined value or set via higher-layer signaling.
[0168] Proposal 4: RRC signaling for measurement gap skipping / canceling
[0169] For example, the base station can transmit to the terminal a gap / restriction skipping configuration including a shared measurement gap index and an MG interval or scheduling restriction configuration mapped to the index via RRC signaling. In addition, for example, terminal operation instruction information, application cycle, and / or pattern can be configured for each index via RRC signaling. For example, multiple such gap / restriction skipping configurations can be provided. For example, each gap / restriction skipping configuration can have a unique configuration index.
[0170] Method 1: For example, information transmitted via RRC signaling may include at least one of the following parameters:
[0171] (1) Unique gap / limit skipping setting index (optional)
[0172] (2) A list of shared measurement gap indices corresponding to one or more MG / limited intervals or scheduling limit settings.
[0173] (3) Terminal operation instruction information on one or more MG / limited intervals or scheduling restriction settings corresponding to the entire shared measurement gap index list above.
[0174] - "On": For example, uplink transmission and downlink reception may be suspended and measurement operations may be performed in a designated MG / restricted interval. Alternatively, for example, the terminal may perform operations (such as measurements) while assuming / deeming that there are no scheduling / instructions for uplink transmission and downlink reception in the MG / restricted interval as before.
[0175] - "Cancel / Skip": For example, measurement operations may be skipped in a specified MG / restricted interval, and uplink transmission and downlink reception may be performed normally. Alternatively, for example, the terminal may expect / monitor scheduling / instructions for uplink transmission and downlink reception (skipping measurement operations) in the corresponding MG / restricted interval.
[0176] (4) Terminal operation application cycle and pattern
[0177] - Period P: For example, this is a value indicating the period in which the terminal operation instruction is repeatedly applied in the MG / limited section corresponding to the shared measurement gap index list, and can be expressed in units such as slot / subframe / frame.
[0178] - Offset O: For example, this is a value indicating the start time of the first MG / restricted interval to which the terminal operation instruction is applied in the MG interval corresponding to the shared measurement gap index list, and can be expressed as a combination of the number of system frames, the number of subframes, and / or the number of slots from SFN0.
[0179] - Skip Pattern (optional): For example, this may be expressed in the form of a bitmap or the like indicating the slot pattern to which the terminal operation instruction for the corresponding index is applied. In this case, for example, the terminal operation instruction information may be omitted.
[0180] For example, the terminal can repeatedly apply the designated terminal operation based on the index list and mapping information received through RRC signaling from the time indicated by the offset O to the given period P (according to the slot pattern if a skip pattern is specified, or to the first MG occurring after the start of the period if the skip pattern is not set). Through this, for example, in the case of a MG that occurs periodically, the terminal can automatically perform the operation for the designated MG section for each period based on the period and pattern information set through RRC signaling.
[0181] For example, in the RRC parameter configuration, the terminal operation indication information parameter can be replaced with a list containing N terminal operation indication information parameters to support slot-by-slot control within the MG section. In this case, for example, the skip pattern can be omitted. For example, the N terminal operation indication information can be utilized as a method of indicating each slot within the MG section or within a period. For example, when the MG section is composed of multiple slots, each bit in the terminal operation indication field can indicate whether to cancel / 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. Through this, for example, the base station can control the measurement operation and the transmission / reception operation on a slot-by-slot basis more precisely even within the MG section.
[0182] For example, in the above RRC parameter configuration, an N-bit terminal operation indication information parameter can be used to indicate an operation state for consecutive slots or MG periods. For example, if 0 is indicated, consecutive slots or MG periods can be in an "on" state, and if a non-zero value is indicated, consecutive slots or MG periods corresponding to the indicated value can be in a "cancel / skip" state.
[0183] This may allow, for example, to perform measurement operations or limit transmission / reception only for some consecutive slots within an MG interval.
[0184] Method 2: For example, terminal operation instruction information may be provided as a pattern, and the length of the pattern may be applied as the length of the cycle. In this case, for example, the information transmitted via RRC signaling may include at least one of the following parameters:
[0185] (1) Unique gap / limit skipping setting index (optional)
[0186] (2) A list of shared measurement gap indices corresponding to one or more MG / limited intervals or scheduling limit settings.
[0187] (3) Terminal operation instruction information pattern: For example, this can be expressed in the form of a bitmap, where each bit can indicate the terminal operation in the MG / restricted section of the corresponding location. For example, "0" can indicate "on", and "1" can indicate "cancel / skip." For example, each bit of the bitmap can correspond one-to-one to each MG / restricted section in time order within the cycle. For example, each bit of the bitmap can correspond one-to-one to each slot within the cycle.
[0188] - "On": For example, uplink transmission and downlink reception may be suspended in a designated MG / restricted interval or slot, and measurement operations may be performed. Alternatively, for example, the terminal may perform operations (such as measurements) while assuming / deeming that there are no scheduling / instructions for uplink transmission and downlink reception in the MG / restricted interval as before.
[0189] - "Cancel / Skip": For example, the measurement operation may be skipped in a specified MG / restricted interval or slot, and uplink transmission and downlink reception may be performed normally. Or, for example, the terminal may expect / monitor scheduling / instructions for uplink transmission and downlink reception (skipping the measurement operation) in the corresponding MG / restricted interval.
[0190] - Offset O: For example, this is a value indicating the start time of the first MG / restricted interval to which the terminal operation instruction is applied in the MG interval corresponding to the shared measurement gap index list, and can be expressed as a combination of the number of system frames, the number of subframes, and / or the number of slots from SFN0.
[0191] For example, based on the received information, the terminal can repeatedly apply the terminal operation instruction information pattern from the time indicated by the offset O. At this time, for example, the length of the pattern can be used as the length of the cycle, and the pattern can be repeatedly applied cyclically.
[0192] For example, instead of a shared measurement gap index, a gap / limit skipping configuration index may be included in each MG configuration. In this case, for example, the base station may transmit terminal operation instruction information corresponding to each gap / limit skipping configuration index via the RRC signaling described above. For example, the terminal may store the received MG configurations and identify the terminal operation instruction information applied to the corresponding MG configuration through the gap / limit skipping configuration index included in each MG configuration. This may enable, for example, independent terminal operation control for each MG configuration, and more flexible MG section management. For example, this method may be applied to all of the methods described above. For example, if the MG configuration includes a gap / limit skipping configuration index instead of a shared measurement gap index, thereby defining a correspondence between the MG configuration and the gap / limit skipping configuration, the gap / limit skipping configuration may not include a shared measurement gap index list.
[0193] For example, long-term MG operation may be possible by semi-statically setting MG control information via RRC signaling.
[0194] Proposal 5: Scheduling DCI Format for Implicit Measurement Gap Control
[0195] For example, in order to control terminal operation on an MG, it may be considered that the base station utilizes scheduling using the existing DCI formats 0_0, 0_1, 0_2, 1_0, 1_1, 1_2. For example, it may be considered that scheduling a PDSCH / PUSCH on an MG implicitly cancels the corresponding MG. For this operation, for example, fields may be added to the existing DCI formats 0_0, 0_1, 0_2, 1_0, 1_1, 1_2.
[0196] For example, at least one of the following fields may be added to the DCI format:
[0197] (1) Shared Measurement Gap Index Field: For example, this can be an (optional) field indicating the index of the MG / restriction to be controlled. For example, the shared measurement gap index proposed in Proposal 1 can be indicated via DCI and can indicate the MG to be controlled. For this purpose, for example, the base station can configure to the terminal in advance which index (among the configurations bringing the scheduling restriction or the measurement gap configurations) corresponds to / maps to which type of MG / restriction interval via upper layer signaling such as RRC. For example, if the DCI schedules on an MG that is not the controllable one, the terminal can stop uplink transmission and downlink reception in the MG / restriction interval overlapping with the radio resources scheduled by the DCI, and perform measurement operations. Alternatively, for example, the terminal can perform operations (such as measurement) under the condition that it considers / assumes that there is no scheduling / instruction for uplink transmission and downlink reception in the MG / restriction interval as before. For example, scheduling constraints on the MG / limited interval may be applied.
[0198] (2) Terminal operation instruction field: For example, this is 1 bit of information and can (optionally) have the following values:
[0199] - "On" (bit value 0): For example, uplink transmission and downlink reception may be suspended and measurement operations may be performed in the MG / restricted interval that overlaps with the radio resources scheduled by the corresponding DCI (and / or has an index indicated by the shared measurement gap index field). Alternatively, for example, the terminal may perform operations (such as measurements) while considering / assuming that there is no scheduling / indication for uplink transmission and downlink reception in the corresponding MG / restricted interval as before.
[0200] - "Cancel / Skip" (bit value 1): For example, measurement operations may be skipped in the MG / restricted interval that overlaps with radio resources scheduled by the corresponding DCI (and / or has an index indicated by the shared measurement gap index field), and uplink transmission and downlink reception may be performed normally (as if there were no MG or scheduling constraint). Or, for example, the terminal may expect / monitor scheduling / instructions for uplink transmission and downlink reception in the corresponding MG / restricted interval (skipping measurement operations).
[0201] Alternatively, for example, conversely, a bit value of 0 could indicate the "cancel / skip" action, and a bit value of 1 could indicate the "on" action.
[0202] (3) Terminal operation application point field: For example, this may be an (optional) field for detailed settings for transmission / reception on the MG.
[0203] - T2 (optional): For example, this is the length of the time interval to which the terminal operation instruction applies, and may indicate the number of symbols / slots / subframes or the number K of MGs to which the terminal operation instruction applies.
[0204] As described above, for example, after receiving a control message for an MG / restricted section, the terminal may perform the following actions:
[0205] For example, if a cancellation message is received for a certain MG / restricted section, the terminal may skip measurement operations in that MG / restricted section and resume normal data transmission and reception in the MG section. For example, after cancellation, measurement operations may not be performed in that section unless specifically instructed by the network.
[0206] For example, upon receiving an activation message for a certain MG / restricted interval, the terminal may perform the designated / instructed measurement operations (for the MG / restricted interval) while minimizing or omitting radio resources and data transmission / reception during the MG / restricted interval. For example, specific measurement operations may include reference signal measurement, synchronization tracking, neighbor cell search, etc., and the measurement reporting cycle and events may also be included in the MG activation message.
[0207] For example, MG control can be performed not only for the current (same) serving cell, but also for adjacent cells, carriers in different frequency bands, cell groups to which the UE belongs, or other RATs. This can be accomplished, for example, through inter-cell / inter-carrier scheduling messages.
[0208] For example, when a terminal is scheduled for a retransmission DCI of an SPS PDSCH or a CG PUSCH, the terminal may omit a measurement operation on the radio resources indicated by the scheduling or in the MG / restricted interval that temporally overlaps with the radio resources, and the terminal may perform uplink transmission and downlink reception (in the MG / restricted interval) normally (as if there were no MG or scheduling constraints). For example, the SPS PDSCH may be for periodic downlink transmission. For example, the CG PUSCH may be for periodic uplink transmission. For example, the retransmission DCI may be for scheduling retransmission resources. For example, such operation may be limited to a case where the retransmitted SPS PDSCH or CG PUSCH is capable of reception and transmission or is configured / instructed to be capable of reception and transmission even in the MG / restricted interval. For example, if a certain SPS / CG setting is set / instructed to be able to be normally received and transmitted on the MG / restricted section by a specific base station setting / instruction and / or terminal operation, retransmission scheduling of the SPS PDSCH or CG PUSCH of the corresponding SPS / CG setting can also be normally received and transmitted on the MG / restricted section.
[0209] For example, a scheduling message that implicitly cancels a specific MG may be limited to only those HARQ processes that the message designates in advance. For example, the specific HARQ process may be a HARQ process associated with an SPS / CG, a HARQ process configured via higher layer signaling to be used for transmitting specific traffic (e.g., XR, URLLC), a HARQ process configured in advance via higher layer signaling from the base station, or a predefined HARQ process.
[0210] For example, a scheduling message that implicitly cancels a specific MG may be a scheduling message that includes a specific code point. For example, this may be a scheduling that indicates an invalid frequency-domain radio resource and a specific redundancy version (RV) / HARQ / new data indicator (NDI) value, such as when all bits are 0 (for RA type 0) or all bits are 1 (for RA type 1). In this case, for example, the MG / restricted interval canceled by the scheduling may be an MG / restricted interval that overlaps with a scheduling slot indicated by the time domain resource allocation (TDRA) information included in the scheduling message. For example, in the case of PDSCH scheduling, a slot in which a PUCCH transmission is scheduled may not be considered for MG / restricted interval cancellation.
[0211] FIG. 8 illustrates a method by which a device performs wireless communication, according to an 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, proposals, methods, and / or operations of the embodiments may be omitted.
[0212] Referring to FIG. 8, in step S810, the device may obtain configuration information related to at least one measurement gap. In step S820, the device may receive information related to a transmission resource. In step S830, the device may receive information for scheduling a retransmission resource related to the transmission resource. For example, based on whether the retransmission resource overlaps with a first measurement gap, transmission or reception may be permitted in the first measurement gap.
[0213] For example, based on the retransmission resource overlapping the first measurement gap, measurements may be omitted in the first measurement gap.
[0214] For example, based on the retransmission resource overlapping the first measurement gap, transmission or reception can be performed based on the retransmission resource in the first measurement gap.
[0215] For example, the transmission resource may be a resource allocated for periodic downlink transmission or a resource allocated for periodic uplink transmission.
[0216] For example, the transmission resource may be a resource allocated for a semi-static physical downlink shared channel or a resource allocated for an established grant physical uplink shared channel.
[0217] For example, the retransmission resource may not overlap with the second measurement gap. For example, transmission or reception may not be permitted in the second measurement gap, and measurements may be performed in the second measurement gap.
[0218] For example, the device may receive a shared measurement gap index for a second measurement gap from the base station. For example, the shared measurement gap index for the second measurement gap may be included in the configuration information. For example, based on receiving the shared measurement gap index for the second measurement gap, transmission or reception may be permitted in the second measurement gap, and measurement may be omitted in the second measurement gap.
[0219] Additionally, for example, the device may receive information from the base station regarding cancellation of the second measurement gap.
[0220] For example, based on receipt of information related to cancellation for said second measurement gap, transmission or reception may be permitted in said second measurement gap, and measurement may be omitted in said second measurement gap.
[0221] For example, based on the reception of information related to cancellation for the second measurement gap and information related to the time interval, transmission or reception may be permitted within the time interval in the second measurement gap, and measurement may be omitted within the time interval in the second measurement gap.
[0222] For example, based on receiving information related to cancellation for the second measurement gap and information related to the number of measurement gaps K, transmission or reception may be permitted in K measurement gaps starting from the second measurement gap, and measurements may be omitted in K measurement gaps starting from the second measurement gap. For example, K may be a positive integer.
[0223] For example, information related to cancellation for the second measurement gap may be received from the base station based on at least one of downlink control information, intermediate access control signaling, or radio resource control signaling.
[0224] For example, transmission or reception may be allowed in the first measurement gap based on the fact that the retransmission resource overlaps with the first measurement gap and based on the fact that the information for scheduling the retransmission resource includes information related to a specific hybrid automatic repeat request (HARQ) process.
[0225] The proposed method can be applied to devices according to various embodiments of the present disclosure. First, the processor (102) of the device (100) can obtain configuration information related to at least one measurement gap. Then, the processor (102) of the device (100) can control the transceiver (106) to receive information related to a transmission resource. Then, the processor (102) of the device (100) can control the transceiver (106) to receive information for scheduling a retransmission resource related to the transmission resource. For example, based on whether the retransmission resource overlaps with a first measurement gap, transmission or reception can be permitted in the first measurement gap.
[0226] According to one embodiment of the present disclosure, a device may be provided. For example, the device may include at least one transceiver; at least one processor; and at least one memory coupled to the at least one processor and storing instructions. For example, the instructions, when executed by the at least one processor, may cause the device to: obtain configuration information related to at least one measurement gap; receive information related to a transmission resource; and receive information for scheduling a retransmission resource related to the transmission resource. For example, based on whether the retransmission resource overlaps a first measurement gap, transmission or reception may be permitted in the first measurement gap.
[0227] According to one embodiment of the present disclosure, a processing device configured to control a device may be provided. For example, the processing device may include at least one processor; and at least one memory coupled to the at least one processor and storing instructions. For example, the instructions, based on execution by the at least one processor, may cause the device to: obtain configuration information related to at least one measurement gap; receive information related to a transmission resource; and receive information for scheduling a retransmission resource related to the transmission resource. For example, based on the retransmission resource overlapping a first measurement gap, transmission or reception may be permitted in the first measurement gap.
[0228] According to one embodiment of the present disclosure, a non-transitory computer-readable storage medium having instructions recorded thereon may be provided. For example, the instructions, when executed, may cause a device to: obtain configuration information related to at least one measurement gap; receive information related to a transmission resource; and receive information for scheduling a retransmission resource related to the transmission resource. For example, based on whether the retransmission resource overlaps with a first measurement gap, transmission or reception may be permitted in the first measurement gap.
[0229] FIG. 9 illustrates a method for a base station to perform wireless communication according to an 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, proposals, methods, and / or operations of the embodiments may be omitted.
[0230] Referring to FIG. 9, in step S910, the base station may transmit configuration information related to at least one measurement gap. In step S920, the base station may transmit information related to a transmission resource. In step S930, the base station may transmit information for scheduling retransmission resources related to the transmission resource. For example, based on whether the retransmission resource overlaps with a first measurement gap, transmission or reception may be permitted in the first measurement gap.
[0231] For example, based on the retransmission resource overlapping the first measurement gap, measurements may be omitted in the first measurement gap.
[0232] For example, based on the retransmission resource overlapping the first measurement gap, transmission or reception can be performed based on the retransmission resource in the first measurement gap.
[0233] For example, the transmission resource may be a resource allocated for periodic downlink transmission or a resource allocated for periodic uplink transmission.
[0234] For example, the transmission resource may be a resource allocated for a semi-static physical downlink shared channel or a resource allocated for an established grant physical uplink shared channel.
[0235] For example, the retransmission resource may not overlap with the second measurement gap. For example, transmission or reception may not be permitted in the second measurement gap, and measurements may be performed in the second measurement gap.
[0236] For example, the base station may transmit a shared measurement gap index for the second measurement gap to the device. For example, the shared measurement gap index for the second measurement gap may be included in the configuration information. For example, based on the transmission of the shared measurement gap index for the second measurement gap, transmission or reception may be permitted in the second measurement gap, and measurement may be omitted in the second measurement gap.
[0237] Additionally, for example, the base station may transmit information to the device regarding cancellation of the second measurement gap.
[0238] For example, based on the transmission of information related to cancellation for said second measurement gap, transmission or reception may be permitted in said second measurement gap, and measurement may be omitted in said second measurement gap.
[0239] For example, based on the transmission of information related to cancellation for the second measurement gap and information related to the time interval, transmission or reception may be allowed within the time interval in the second measurement gap, and measurement may be omitted within the time interval in the second measurement gap.
[0240] For example, based on the transmission of information related to cancellation for the second measurement gap and information related to the number of measurement gaps K, transmission or reception may be allowed in K measurement gaps starting from the second measurement gap, and measurements may be omitted in K measurement gaps starting from the second measurement gap. For example, K may be a positive integer.
[0241] For example, information related to cancellation for the second measurement gap may be transmitted to the device based on at least one of downlink control information, intermediate access control signaling, or radio resource control signaling.
[0242] For example, transmission or reception may be allowed in the first measurement gap based on the fact that the retransmission resource overlaps with the first measurement gap and based on the fact that the information for scheduling the retransmission resource includes information related to a specific hybrid automatic repeat request (HARQ) process.
[0243] The proposed method can be applied to devices according to various embodiments of the present disclosure. First, the processor (202) of the base station (200) can control the transceiver (206) to transmit configuration information related to at least one measurement gap. Then, the processor (202) of the base station (200) can control the transceiver (206) to transmit information related to a transmission resource. Then, the processor (202) of the base station (200) can control the transceiver (206) to transmit information for scheduling a retransmission resource related to the transmission resource. For example, based on whether the retransmission resource overlaps with a first measurement gap, transmission or reception can be permitted in the first measurement gap.
[0244] According to one embodiment of the present disclosure, a base station may be provided. For example, the base station may include at least one transceiver; at least one processor; and at least one memory coupled to the at least one processor and storing instructions. For example, the instructions, based on execution by the at least one processor, may cause the base station to: transmit configuration information related to at least one measurement gap; transmit information related to a transmission resource; and transmit information for scheduling a retransmission resource related to the transmission resource. For example, based on the retransmission resource overlapping a first measurement gap, transmission or reception may be permitted in the first measurement gap.
[0245] According to one embodiment of the present disclosure, a processing device configured to control a base station may be provided. For example, the processing device may include at least one processor; and at least one memory coupled to the at least one processor and storing instructions. For example, the instructions, based on execution by the at least one processor, may cause the base station to: transmit configuration information related to at least one measurement gap; transmit information related to a transmission resource; and transmit information for scheduling a retransmission resource related to the transmission resource. For example, based on the retransmission resource overlapping a first measurement gap, transmission or reception may be permitted in the first measurement gap.
[0246] According to one embodiment of the present disclosure, a non-transitory computer-readable storage medium having instructions recorded thereon may be provided. For example, the instructions, when executed, may cause a base station to: transmit configuration information related to at least one measurement gap; transmit information related to a transmission resource; and transmit information for scheduling a retransmission resource related to the transmission resource. For example, based on whether the retransmission resource overlaps with a first measurement gap, transmission or reception may be permitted in the first measurement gap.
[0247] According to various embodiments of the present disclosure, transmission / reception over a measurement gap for XR services can be effectively controlled. This can reduce terminal power consumption and improve the quality of XR services.
[0248] The various embodiments of the present disclosure may be combined with each other, and some descriptions, functions, procedures, proposals, methods and / or operations of the embodiments may be omitted.
[0249] Below, a description is given of devices to which various embodiments of the present disclosure can be applied.
[0250] Although not limited thereto, the various descriptions, functions, procedures, proposals, methods and / or operational flowcharts disclosed in this document may be applied to various fields requiring wireless communication / connectivity (e.g., 5G) between devices.
[0251] Hereinafter, more specific examples will be provided with reference to the drawings. In the drawings / descriptions below, the same drawing reference numerals may represent identical or corresponding hardware blocks, software blocks, or functional blocks, unless otherwise described.
[0252] FIG. 10 illustrates 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.
[0253] 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 a wireless access technology (e.g., 5G NR (New RAT), LTE (Long Term Evolution)) and may be referred to as a communication / wireless / 5G device. Although not limited thereto, the wireless device may include a robot (100a), a vehicle (100b-1, 100b-2), an XR (eXtended Reality) device (100c), a hand-held device (100d), a home appliance (100e), an IoT (Internet of Things) device (100f), and an AI device / server (400). For example, the vehicle may include a vehicle equipped with a wireless communication function, an autonomous vehicle, a vehicle capable of performing vehicle-to-vehicle communication, etc. Here, the vehicle may include an Unmanned Aerial Vehicle (UAV) (e.g., a drone) and / or an Aerial Vehicle (AV) (e.g., an Advanced Air Mobility (AAM)). The XR device may include an Augmented Reality (AR) / Virtual Reality (VR) / Mixed Reality (MR) device, and may be implemented in the form of a Head-Mounted Device (HMD), a Head-Up Display (HUD) equipped in a vehicle, a television, a smartphone, a computer, a wearable device, a home appliance, a digital signage, a vehicle, a robot, etc. The portable device may include a smartphone, a smart pad, a wearable device (e.g., a smart watch, smart glasses), a computer (e.g., a laptop, etc.), etc. The home appliance may include a TV, a refrigerator, a washing machine, etc. The IoT device may include a sensor, a smart meter, etc. For example, a base station and a network may also be implemented as a wireless device, and a specific wireless device (200a) may operate as a base station / network node to other wireless devices.
[0254] Here, the wireless communication technology implemented in the wireless devices (100a to 100f) of the present specification may include not only LTE, NR, and 6G, but also Narrowband Internet of Things for low-power communication. At this time, for example, NB-IoT technology may be an example of LPWAN (Low Power Wide Area Network) technology, and may be implemented with standards such as LTE Cat NB1 and / or LTE Cat NB2, and is not limited to the above-described names. Additionally or alternatively, the wireless communication technology implemented in the wireless devices (100a to 100f) of the present specification may perform communication based on LTE-M technology. At this time, for example, LTE-M technology may be an example of LPWAN technology, and may be called by various names such as eMTC (enhanced Machine Type Communication). For example, LTE-M technology can be implemented by at least one of various standards such as 1) LTE CAT 0, 2) LTE Cat M1, 3) LTE Cat M2, 4) LTE non-BL (non-Bandwidth Limited), 5) LTE-MTC, 6) LTE Machine Type Communication, and / or 7) LTE M, and is not limited to the above-described names. Additionally or alternatively, the wireless communication technology implemented in the wireless devices (100a to 100f) of the present specification can include at least one of ZigBee, Bluetooth, and Low Power Wide Area Network (LPWAN) considering low-power communication, and is not limited to the above-described names. For example, ZigBee technology can create personal area networks (PAN) related to small / low-power digital communication based on various standards such as IEEE 802.15.4, and can be called by various names.
[0255] Wireless devices (100a to 100f) can be connected to a network (300) via a base station (200). Artificial Intelligence (AI) technology can be applied to the wireless devices (100a to 100f), and the wireless devices (100a to 100f) can be connected to an AI server (400) via the network (300). The network (300) can be configured using a 3G network, a 4G (e.g., LTE) network, a 5G (e.g., NR) network, etc. The wireless devices (100a to 100f) can communicate with each other via the base station (200) / network (300), but can also communicate directly (e.g., sidelink communication) without going through the base station / network. For example, vehicles (100b-1, 100b-2) can communicate directly (e.g., V2V (Vehicle to Vehicle) / V2X (Vehicle to Everything) communication). In addition, IoT devices (e.g., sensors) can communicate directly with other IoT devices (e.g., sensors) or other wireless devices (100a to 100f).
[0256] Wireless communication / connection (150a, 150b, 150c) can be established between wireless devices (100a~100f) / base stations (200), and base stations (200) / base stations (200). Here, wireless communication / connection can be achieved through various wireless access technologies (e.g., 5G NR) such as uplink / downlink communication (150a), sidelink communication (150b) (or D2D communication), and base station-to-base station communication (150c) (e.g., relay, IAB (Integrated Access Backhaul). Through wireless communication / connection (150a, 150b, 150c), wireless devices and base stations / wireless devices, and base stations and base stations can transmit / receive wireless signals to each other. For example, wireless communication / connection (150a, 150b, 150c) can transmit / receive signals through various physical channels. To this end, at least some of various configuration information setting processes for transmitting / receiving wireless signals, various signal processing processes (e.g., channel encoding / decoding, modulation / demodulation, resource mapping / demapping, etc.), and resource allocation processes can be performed based on various proposals of the present disclosure.
[0257] FIG. 11 illustrates a wireless device according to an embodiment of the present disclosure. The embodiment of FIG. 11 may be combined with various embodiments of the present disclosure.
[0258] Referring to FIG. 11, the first wireless device (100) and the second wireless device (200) can transmit and receive wireless signals via various wireless access technologies (e.g., LTE, NR). Here, {the first wireless device (100), the second wireless device (200)} can correspond to {the wireless device (100x), the base station (200)} and / or {the wireless device (100x), the wireless device (100x)} of FIG. 10.
[0259] A first wireless device (100) includes one or more processors (102) and one or more memories (104), and may further include one or more transceivers (106) and / or one or more antennas (108). The processor (102) controls the memories (104) and / or the transceivers (106), and may be configured to implement the descriptions, functions, procedures, proposals, methods, and / or operational flowcharts disclosed in this document. For example, the processor (102) may process information in the memory (104) to generate first information / signal, and then transmit a wireless signal including the first information / signal via the transceiver (106). Furthermore, the processor (102) may receive a wireless signal including second information / signal via the transceiver (106), and then store information obtained from signal processing of the second information / signal in the memory (104). The memory (104) may be connected to the processor (102) and may store various information related to the operation of the processor (102). For example, the memory (104) may perform some or all of the processes controlled by the processor (102), or may store software code including commands for performing the descriptions, functions, procedures, proposals, methods, and / or operation flowcharts disclosed in this document. Here, the processor (102) and the memory (104) may be part of a communication modem / circuit / chip designed to implement a wireless communication technology (e.g., LTE, NR). The transceiver (106) may be connected to the processor (102) and may transmit and / or receive wireless signals via one or more antennas (108). The transceiver (106) may include a transmitter and / or a receiver. The transceiver (106) may be used interchangeably with an RF (Radio Frequency) unit. In the present disclosure, a wireless device may also mean a communication modem / circuit / chip.
[0260] A second wireless device (200) includes one or more processors (202), one or more memories (204), and may further include one or more transceivers (206) and / or one or more antennas (208). The processor (202) controls the memories (204) and / or the transceivers (206), and may be configured to implement the descriptions, functions, procedures, proposals, methods, and / or operational flowcharts disclosed in this document. For example, the processor (202) may process information in the memory (204) to generate third information / signals, and then transmit a wireless signal including the third information / signals via the transceivers (206). In addition, the processor (202) may receive a wireless signal including fourth information / signals via the transceivers (206), and then store information obtained from signal processing of the fourth information / signals in the memory (204). The memory (204) may be connected to the processor (202) and may store various information related to the operation of the processor (202). For example, the memory (204) may perform some or all of the processes controlled by the processor (202), or may store software code including commands for performing the descriptions, functions, procedures, proposals, methods, and / or operation flowcharts disclosed in this document. Here, the processor (202) and the memory (204) may be part of a communication modem / circuit / chip designed to implement wireless communication technology (e.g., LTE, NR). The transceiver (206) may be connected to the processor (202) and may transmit and / or receive wireless signals via one or more antennas (208). The transceiver (206) may include a transmitter and / or a receiver. The transceiver (206) may be used interchangeably with an RF unit. In the present disclosure, a wireless device may also mean a communication modem / circuit / chip.
[0261] Hereinafter, the hardware elements of the wireless device (100, 200) will be described in more detail. Although not limited thereto, one or more protocol layers may be implemented by one or more processors (102, 202). For example, one or more processors (102, 202) may implement one or more layers (e.g., functional layers such as PHY, MAC, RLC, PDCP, RRC, SDAP). One or more processors (102, 202) may generate one or more Protocol Data Units (PDUs) and / or one or more Service Data Units (SDUs) according to the descriptions, functions, procedures, proposals, methods, and / or operation flowcharts disclosed in this document. One or more processors (102, 202) may generate messages, control information, data, or information according to the descriptions, functions, procedures, proposals, methods, and / or operation flowcharts disclosed in this document. One or more processors (102, 202) can generate signals (e.g., baseband signals) including PDUs, SDUs, messages, control information, data or information according to the functions, procedures, proposals and / or methods disclosed herein, and provide the signals to one or more transceivers (106, 206). One or more processors (102, 202) can receive signals (e.g., baseband signals) from one or more transceivers (106, 206) and obtain PDUs, SDUs, messages, control information, data or information according to the descriptions, functions, procedures, proposals, methods and / or operational flowcharts disclosed herein.
[0262] One or more processors (102, 202) may be referred to as a controller, a microcontroller, a microprocessor, or a microcomputer. One or more processors (102, 202) may be implemented by hardware, firmware, software, or a combination thereof. For example, one or more Application Specific Integrated Circuits (ASICs), one or more Digital Signal Processors (DSPs), one or more Digital Signal Processing Devices (DSPDs), one or more Programmable Logic Devices (PLDs), or one or more Field Programmable Gate Arrays (FPGAs) may be included in one or more processors (102, 202). The descriptions, functions, procedures, proposals, methods, and / or operational flowcharts disclosed in this document may be implemented using firmware or software, and the firmware or software may be implemented to include modules, procedures, functions, etc. The descriptions, functions, procedures, suggestions, methods and / or operation flowcharts disclosed in this document may be implemented using firmware or software configured to perform one or more processors (102, 202) or stored in one or more memories (104, 204) and executed by one or more processors (102, 202). The descriptions, functions, procedures, suggestions, methods and / or operation flowcharts disclosed in this document may be implemented using firmware or software in the form of codes, instructions and / or sets of instructions.
[0263] One or more memories (104, 204) may be coupled to one or more processors (102, 202) and may store various forms of data, signals, messages, information, programs, codes, instructions, and / or commands. The one or more memories (104, 204) may be configured as ROM, RAM, EPROM, flash memory, hard drives, registers, cache memory, computer-readable storage media, and / or combinations thereof. The one or more memories (104, 204) may be located internally and / or externally to the one or more processors (102, 202). Additionally, the one or more memories (104, 204) may be coupled to the one or more processors (102, 202) via various technologies, such as wired or wireless connections.
[0264] One or more transceivers (106, 206) can transmit user data, control information, wireless signals / channels, etc., as mentioned in the methods and / or flowcharts of this document, to one or more other devices. One or more transceivers (106, 206) can receive user data, control information, wireless signals / channels, etc., as mentioned in the descriptions, functions, procedures, proposals, methods and / or flowcharts of this document, from one or more other devices. For example, one or more transceivers (106, 206) can be connected to one or more processors (102, 202) and can transmit and receive wireless signals. For example, one or more processors (102, 202) can control one or more transceivers (106, 206) to transmit user data, control information, or wireless signals to one or more other devices. Additionally, one or more processors (102, 202) may control one or more transceivers (106, 206) to receive user data, control information, or wireless signals from one or more other devices. Additionally, one or more transceivers (106, 206) may be coupled to one or more antennas (108, 208), and one or more transceivers (106, 206) may be configured to transmit and receive user data, control information, wireless signals / channels, or the like, as referred to in the descriptions, functions, procedures, proposals, methods, and / or operational flowcharts disclosed herein, via one or more antennas (108, 208). In this document, one or more antennas may be multiple physical antennas or multiple logical antennas (e.g., antenna ports). One or more transceivers (106, 206) can convert received user data, control information, wireless signals / channels, etc. from RF band signals to baseband signals in order to process the received user data, control information, wireless signals / channels, etc. using one or more processors (102, 202).One or more transceivers (106, 206) may convert user data, control information, wireless signals / channels, etc. processed by one or more processors (102, 202) from baseband signals to RF band signals. For this purpose, one or more transceivers (106, 206) may include an (analog) oscillator and / or filter.
[0265] FIG. 12 illustrates a signal processing circuit for a transmission signal according to an embodiment of the present disclosure. The embodiment of FIG. 12 may be combined with various embodiments of the present disclosure.
[0266] 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 operations / functions of FIG. 12 may be performed in the processor (102, 202) and / or the transceiver (106, 206) of FIG. 11. The hardware elements of FIG. 12 may be implemented in the processor (102, 202) and / or the transceiver (106, 206) of FIG. 11. For example, blocks 1010 to 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.
[0267] 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 can include a transport block (e.g., an UL-SCH transport block, a DL-SCH transport block). The wireless signal can be transmitted through various physical channels (e.g., a PUSCH or a PDSCH).
[0268] Specifically, the codeword can be converted into a bit sequence scrambled by a scrambler (1010). The scramble sequence used for scrambling is generated based on an initialization value, and the initialization value may include ID information of the wireless device, etc. The scrambled bit sequence can be modulated into a modulation symbol sequence by a modulator (1020). The modulation method may include pi / 2-BPSK (pi / 2-Binary Phase Shift Keying), m-PSK (m-Phase Shift Keying), m-QAM (m-Quadrature Amplitude Modulation), etc. The complex modulation symbol sequence can be mapped to one or more transmission layers by a layer mapper (1030). The modulation symbols of each transmission layer can be mapped to the corresponding antenna port(s) by a precoder (1040) (precoding). The output z of the precoder (1040) can be obtained by multiplying the output y of the layer mapper (1030) by a precoding matrix W of N*M. Here, N is the number of antenna ports, and M is the number of transmission layers. Here, the precoder (1040) can perform precoding after performing transform precoding (e.g., DFT transform) on complex modulation symbols. In addition, the precoder (1040) can perform precoding without performing transform precoding.
[0269] The resource mapper (1050) can map modulation symbols of each antenna port to time-frequency resources. The time-frequency resources can include multiple symbols (e.g., CP-OFDMA symbols, DFT-s-OFDMA symbols) in the time domain and multiple subcarriers in the frequency domain. The signal generator (1060) generates a wireless signal from the mapped modulation symbols, and the generated wireless signal can be transmitted to another device through each antenna. To this end, the signal generator (1060) can include an Inverse Fast Fourier Transform (IFFT) module, a Cyclic Prefix (CP) inserter, a Digital-to-Analog Converter (DAC), a frequency uplink converter, etc.
[0270] The signal processing process for receiving signals in a wireless device can be configured in reverse order of the signal processing process (1010 to 1060) of FIG. 12. For example, a wireless device (e.g., 100, 200 of FIG. 11) can receive wireless signals from the outside through an antenna port / transceiver. The received wireless signals can be converted into baseband signals through a signal restorer. For this purpose, the signal restorer can include a frequency downlink converter, an analog-to-digital converter (ADC), a CP remover, and a fast Fourier transform (FFT) module. Thereafter, the baseband signal can be restored to a codeword through a resource demapper process, a postcoding process, a demodulation process, and a descrambling process. The codewords can be restored to the original information blocks through decoding. Accordingly, a signal processing circuit (not shown) for a received signal may include a signal restorer, a resource de-mapper, a postcoder, a demodulator, a de-scrambler, and a decoder.
[0271] Figure 13 illustrates a wireless device according to an embodiment of the present disclosure. The wireless device may be implemented in various forms depending on the use case / service (see Figure 10). The embodiment of Figure 13 may be combined with various embodiments of the present disclosure.
[0272] 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 / units, and / or modules. For example, the wireless device (100, 200) may include a communication unit (110), a control unit (120), a memory unit (130), and additional elements (140). The communication unit may include a communication circuit (112) and a transceiver(s) (114). For example, the communication circuit (112) may include one or more processors (102, 202) and / or one or more memories (104, 204) of FIG. 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 the additional elements (140) and controls the overall operation of the wireless device. For example, the control unit (120) may control the electrical / mechanical operation of the wireless device based on the program / code / command / information stored in the memory unit (130). In addition, the control unit (120) may transmit information stored in the memory unit (130) to an external device (e.g., another communication device) via a wireless / wired interface through the communication unit (110), or store information received from an external device (e.g., another communication device) via a wireless / wired interface in the memory unit (130).
[0273] The additional element (140) may be configured in various ways depending on the type of the wireless device. For example, the additional element (140) may include at least one of a power unit / battery, an input / output unit (I / O unit), a driving unit, and a computing unit. Although not limited thereto, the wireless device may be implemented in the form of a robot (Fig. 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 a financial device), a security device, a climate / environmental device, an AI server / device (Fig. 10, 400), a base station (Fig. 10, 200), a network node, etc. Wireless devices may be mobile or stationary depending on the use / service.
[0274] In FIG. 13, various elements, components, units / parts, and / or modules within the wireless device (100, 200) may be interconnected entirely via a wired interface, or at least some may be wirelessly connected via a communication unit (110). For example, within the wireless device (100, 200), the control unit (120) and the communication unit (110) may be wired, and the control unit (120) and the first unit (e.g., 130, 140) may be wirelessly connected via the communication unit (110). In addition, each element, component, unit / part, and / or module within the wireless device (100, 200) may further include one or more elements. For example, the control unit (120) may be composed of one or more processor sets. For example, the control unit (120) may be composed of a set of a communication control processor, an application processor, an electronic control unit (ECU), a graphics processing processor, a memory control processor, etc. As another example, the memory unit (130) may be composed of a random access memory (RAM), a dynamic RAM (DRAM), a read only memory (ROM), a flash memory, a volatile memory, a non-volatile memory, and / or a combination thereof.
[0275] Below, the implementation example of Fig. 13 is described in more detail with reference to the drawings.
[0276] FIG. 14 illustrates a mobile device according to an embodiment of the present disclosure. The mobile device may include a smartphone, a smart pad, a wearable device (e.g., a smartwatch, smartglasses), or a portable computer (e.g., a laptop, etc.). The mobile device may be referred to as a Mobile Station (MS), a User Terminal (UT), a Mobile Subscriber Station (MSS), a Subscriber Station (SS), an Advanced Mobile Station (AMS), or a Wireless Terminal (WT). The embodiment of FIG. 14 may be combined with various embodiments of the present disclosure.
[0277] 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 a part of the communication unit (110). Blocks 110 to 130 / 140a to 140c correspond to blocks 110 to 130 / 140 of FIG. 13, respectively.
[0278] The communication unit (110) can transmit and receive signals (e.g., data, control signals, etc.) with other wireless devices and base stations. The control unit (120) can control components of the mobile device (100) to perform various operations. The control unit (120) can include an AP (Application Processor). The memory unit (130) can store data / parameters / programs / codes / commands required for operating the mobile device (100). In addition, the memory unit (130) can store input / output data / information, etc. The power supply unit (140a) supplies power to the mobile device (100) and can include a wired / wireless charging circuit, a battery, etc. The interface unit (140b) can support connection between the mobile device (100) and other external devices. The interface unit (140b) can include various ports (e.g., audio input / output ports, video input / output ports) for connection with external devices. The input / output unit (140c) can input or output video information / signals, audio information / signals, data, and / or information input from a user. The input / output unit (140c) may include a camera, a microphone, a user input unit, a display unit (140d), a speaker, and / or a haptic module.
[0279] For example, in the case of data communication, the input / output unit (140c) obtains information / signals (e.g., touch, text, voice, image, video) input by the user, and the obtained information / signals can be stored in the memory unit (130). The communication unit (110) converts the information / signals stored in the memory into wireless signals, and can directly transmit the converted wireless signals to other wireless devices or to a base station. In addition, the communication unit (110) can receive wireless signals from other wireless devices or base stations, and then restore the received wireless signals to the original information / signals. The restored information / signals can be stored in the memory unit (130) and then output in various forms (e.g., text, voice, image, video, haptic) through the input / output unit (140c).
[0280] FIG. 15 illustrates an XR device according to an embodiment of the present disclosure. The XR device may be implemented as an HMD, a head-up display (HUD) installed in a vehicle, a television, a smartphone, a computer, a wearable device, a home appliance, digital signage, a vehicle, a robot, etc. The embodiment of FIG. 15 may be combined with various embodiments of the present disclosure.
[0281] Referring to FIG. 15, the XR device (100a) may include a communication unit (110), a control unit (120), a memory unit (130), an input / output unit (140a), a sensor unit (140b), and a power supply unit (140c). Here, blocks 110 to 130 / 140a to 140c correspond to blocks 110 to 130 / 140 of FIG. 13, respectively.
[0282] The communication unit (110) can transmit and receive signals (e.g., media data, control signals, etc.) with external devices such as other wireless devices, portable devices, or media servers. The media data can include videos, images, sounds, etc. The control unit (120) can control components of the XR device (100a) to perform various operations. For example, the control unit (120) can be configured to control and / or perform procedures such as video / image acquisition, (video / image) encoding, metadata generation and processing, etc. The memory unit (130) can store data / parameters / programs / codes / commands required for driving the XR device (100a) / generating XR objects. The input / output unit (140a) can obtain control information, data, etc. from the outside, and output the generated XR object. The input / output unit (140a) can include a camera, a microphone, a user input unit, a display unit, a speaker, and / or a haptic module, etc. The sensor unit (140b) can obtain the XR device status, surrounding environment information, user information, etc. The sensor unit (140b) may include a proximity sensor, an illuminance sensor, an acceleration sensor, a magnetic sensor, a gyro sensor, an inertial sensor, an RGB sensor, an IR sensor, a fingerprint recognition sensor, an ultrasonic sensor, a light sensor, a microphone, and / or a radar. The power supply unit (140c) supplies power to the XR device (100a) and may include a wired / wireless charging circuit, a battery, etc.
[0283] For example, the memory unit (130) of the XR device (100a) may include information (e.g., data, etc.) required for creating an XR object (e.g., AR / VR / MR object). The input / output unit (140a) may obtain a command to operate the XR device (100a) from the user, and the control unit (120) may operate the XR device (100a) according to the user's operating command. For example, when a user attempts to watch a movie, news, etc. through the XR device (100a), the control unit (120) may transmit content request information to another device (e.g., a mobile device (100b)) or a media server through the communication unit (130). The communication unit (130) may download / stream content such as movies and news from another device (e.g., a mobile device (100b)) or a media server to the memory unit (130). The control unit (120) controls and / or performs procedures such as video / image acquisition, (video / image) encoding, and metadata generation / processing for content, and can generate / output an XR object based on information about surrounding space or real objects acquired through the input / output unit (140a) / sensor unit (140b).
[0284] In addition, the XR device (100a) is wirelessly connected to the mobile device (100b) through the communication unit (110), and the operation of the XR device (100a) can be controlled by the mobile device (100b). For example, the mobile device (100b) can act as a controller for the XR device (100a). To this end, the XR device (100a) can obtain three-dimensional position information of the mobile device (100b), and then generate and output an XR object corresponding to the mobile device (100b).
[0285] The claims set forth in this specification may be combined in various ways. For example, the technical features of the method claims of this specification may be combined and implemented as a device, and the technical features of the device claims of this specification may be combined and implemented as a method. Furthermore, the technical features of the method claims and the technical features of the device claims of this specification may be combined and implemented as a device, and the technical features of the method claims and the technical features of the device claims of this specification may be combined and implemented as a method.
Claims
1. In the method, A step of obtaining setup information related to at least one measurement gap; A step of receiving information related to a transmission resource; and A step of receiving information for scheduling retransmission resources related to the above transmission resources; including; A method wherein transmission or reception is allowed in the first measurement gap based on the above retransmission resource overlapping the first measurement gap.
2. In paragraph 1, A method wherein measurements are omitted in the first measurement gap based on the fact that the retransmission resource overlaps with the first measurement gap.
3. In paragraph 1, A method wherein transmission or reception is performed based on the retransmission resource in the first measurement gap, based on the retransmission resource overlapping the first measurement gap.
4. In paragraph 1, A method wherein the above transmission resources are resources allocated for periodic downlink transmission or resources allocated for periodic uplink transmission.
5. In paragraph 1, The above retransmission resource does not overlap with the second measurement gap, the method.
6. In paragraph 5, A method wherein transmission or reception is not permitted in the second measurement gap, and measurement is performed in the second measurement gap.
7. In paragraph 1, A method wherein, based on reception of a shared measurement gap index for a second measurement gap, transmission or reception is allowed in the second measurement gap, and measurement is omitted in the second measurement gap.
8. In paragraph 1, A method further comprising the step of receiving information related to cancellation for a second measurement gap from a base station; 9. In paragraph 8, A method wherein, based on the reception of information related to cancellation for the second measurement gap, transmission or reception is permitted in the second measurement gap, and measurement is omitted in the second measurement gap.
10. In paragraph 8, A method wherein, based on the reception of information related to cancellation for the second measurement gap and information related to a time interval, transmission or reception is permitted within the time interval in the second measurement gap, and measurement is omitted within the time interval in the second measurement gap.
11. In paragraph 8, Based on the reception of information related to cancellation for the second measurement gap and information related to the number of measurement gaps K, transmission or reception is allowed in K measurement gaps starting from the second measurement gap, and measurements are omitted in K measurement gaps starting from the second measurement gap, and A method wherein the above K is a positive integer.
12. In paragraph 8, A method wherein information related to cancellation for the second measurement gap is received from the base station based on at least one of downlink control information, intermediate access control signaling, or radio resource control signaling.
13. In paragraph 1, A method wherein transmission or reception is allowed in the first measurement gap based on the fact that the retransmission resource overlaps with the first measurement gap and based on the fact that the information for scheduling the retransmission resource includes information related to a specific hybrid automatic repeat request (HARQ) process.
14. In the device, At least one transmitter / receiver; at least one processor; and At least one memory connected to said at least one processor and storing instructions, said instructions being executed by said at least one processor, wherein said device causes: Obtain setup information related to at least one measurement gap; To receive information related to transmission resources; and Receive information for scheduling retransmission resources related to the above transmission resources, A device wherein transmission or reception is allowed in the first measurement gap based on the above retransmission resource overlapping with the first measurement gap.
15. In a processing device set to control a device, at least one processor; and At least one memory connected to said at least one processor and storing instructions, said instructions being executed by said at least one processor, wherein said device causes: Obtain setup information related to at least one measurement gap; To receive information related to transmission resources; and Receive information for scheduling retransmission resources related to the above transmission resources, A processing device, wherein transmission or reception is allowed in the first measurement gap based on the fact that the retransmission resource overlaps with the first measurement gap.
16. A non-transitory computer-readable storage medium that records commands, The above commands, when executed, cause the device to: Obtain setup information related to at least one measurement gap; To receive information related to transmission resources; and Receive information for scheduling retransmission resources related to the above transmission resources, A non-transitory computer-readable storage medium, wherein transmission or reception is allowed in the first measurement gap based on the retransmission resource overlapping the first measurement gap.
17. In the method, A step of transmitting setup information related to at least one measurement gap; A step of transmitting information related to a transmission resource; and A step of transmitting information for scheduling retransmission resources related to the above transmission resources; including, A method wherein transmission or reception is allowed in the first measurement gap based on the above retransmission resource overlapping the first measurement gap.
18. At the base station, At least one transmitter / receiver; at least one processor; and At least one memory connected to said at least one processor and storing instructions, said instructions being executed by said at least one processor, wherein said base station: Transmits configuration information related to at least one measurement gap; To transmit information related to the transmission resource; and Transmit information for scheduling retransmission resources related to the above transmission resources, A base station, wherein transmission or reception is allowed in the first measurement gap, based on the above retransmission resource overlapping with the first measurement gap.
19. In a processing device set to control a base station, at least one processor; and At least one memory connected to said at least one processor and storing instructions, said instructions being executed by said at least one processor, wherein said base station: Transmits configuration information related to at least one measurement gap; To transmit information related to the transmission resource; and Transmit information for scheduling retransmission resources related to the above transmission resources, A processing device, wherein transmission or reception is allowed in the first measurement gap based on the fact that the retransmission resource overlaps with the first measurement gap.
20. A non-transitory computer-readable storage medium that records commands, The above commands, when executed, cause the base station to: Transmits configuration information related to at least one measurement gap; To transmit information related to the transmission resource; and Transmit information for scheduling retransmission resources related to the above transmission resources, A non-transitory computer-readable storage medium, wherein transmission or reception is allowed in the first measurement gap based on the retransmission resource overlapping the first measurement gap.
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