Hybrid automatic repeat request (HARQ) mode and discontinuous reception (DRX) timer operation method and apparatus for extreme reality (XR)

Abstract

The present disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. According to the present disclosure, when authorization of a configuration is set, a terminal and a base station can efficiently transmit and receive data even when data to be transmitted from a CG resource has a short transmission time requirement.

Description

Technical Field

[0001] This disclosure relates to the operation of terminals and base stations in mobile communication systems. Specifically, this disclosure relates to the operation of terminals and base stations in mobile communication systems, and more specifically, to a method and apparatus for transmitting data to be transmitted in CG resources and having short transmission time requirements when a configured authorization is configured. Background Technology

[0002] 5G mobile communication technology defines a wide frequency band, enabling high transmission rates and new services. It can be implemented not only in "sub-6GHz" bands such as 3.5GHz, but also in "above 6GHz" bands, including 28GHz and 39GHz, known as millimeter waves (mmWave). Furthermore, 6G mobile communication technology (referred to as "super 5G systems") is being considered in terahertz bands (e.g., the 95GHz to 3THz band) to achieve transmission rates fifty times faster than 5G and ultra-low latency one-tenth that of 5G.

[0003] At the outset of 5G mobile communication technology development, ongoing standardization was implemented to support services and meet performance requirements associated with enhanced mobile broadband (eMBB), ultra-reliable low-latency communication (URLLC), and massive machine-type communication (mMTC). This included beamforming and massive MIMO for mitigating radio wave path loss and increasing radio wave transmission distance in mmWave; parameter sets supporting dynamic operation for efficient utilization of mmWave resources and time slot formats (e.g., operating multiple subcarrier spacings); initial access technologies to support multi-beam transmission and broadband; the definition and operation of BWP (bandwidth portion); new channel coding methods such as LDPC (low-density parity-check) codes for large-volume data transmission and polar codes for highly reliable transmission of control information; L2 preprocessing; and network slicing for providing dedicated networks for specific services.

[0004] Currently, given the services that 5G mobile communication technology will support, discussions are underway regarding improvements and performance enhancements to the initial 5G mobile communication technology. Physical layer standardization for various technologies already exists, such as V2X (Vehicle-to-Everything) for assisting autonomous vehicle driving decisions based on information sent by the vehicle regarding its location and status, enhancing user convenience; NR-U (New Radio Unlicensed) for system operation designed to comply with various regulatory requirements in unlicensed frequency bands; NR UE power saving; and NTN (Non-Terrestrial Network) for UE-satellite direct communication to provide coverage and positioning in areas where communication with terrestrial networks is unavailable.

[0005] Furthermore, standardization has been ongoing for various air interface architectures / protocols, such as the Industrial Internet of Things (IIoT) for supporting new services through interoperability and convergence with other industries, IAB (Integrated Access and Backhaul) for providing nodes for network service area extension by supporting wireless backhaul and access links in an integrated manner, mobility enhancements including conditional handover and DAPS (Dual Active Stack) handover, and two-step random access (2-step RACH for NR) for simplifying the random access process. Standardization has also been ongoing in terms of system architecture / services, involving 5G baseline architectures (e.g., service-based architectures or service-based interfaces) for combining Network Functions Virtualization (NFV) and Software-Defined Networking (SDN) technologies, and mobile edge computing (MEC) for UE location-based reception services.

[0006] With the commercialization of 5G mobile communication systems, an exponential increase in connected devices will be linked to communication networks. Therefore, enhanced functionality and performance of 5G mobile communication systems, as well as the integrated operation of connected devices, are expected to be necessary. To this end, new research is planned, involving extended reality (XR) for effective support of AR (Augmented Reality), VR (Virtual Reality), MR (Mixed Reality), etc.; 5G performance improvements and complexity reduction through the utilization of artificial intelligence (AI) and machine learning (ML); AI service support; metaverse service support; and drone communication.

[0007] Furthermore, these developments in 5G mobile communication systems will serve as a foundation not only for developing new waveforms to provide terahertz band coverage for 6G mobile communication technologies, multi-antenna transmission technologies (such as full-dimensional MIMO (FD-MIMO), array antennas, and massive MIMO), metamaterial-based lenses and antennas to improve terahertz band signal coverage, high-dimensional spatial multiplexing technologies using OAM (orbital angular momentum), and RIS (reconfigurable smart surfaces), but also for developing full-duplex technologies to improve the frequency efficiency of 6G mobile communication technologies and enhance system networks, AI-based communication technologies that optimize systems by leveraging satellites and AI (artificial intelligence) from the design phase and internalizing end-to-end AI support, and next-generation distributed computing technologies that leverage ultra-high-performance communication and computing resources to achieve service complexity levels exceeding the operational capabilities of UEs.

[0008] At the same time, a solution is needed to overcome the problem that may occur when sending data that needs to be sent in CG resources and has short transmission time requirements when the configured authorization is configured. Summary of the Invention

[0009] Technical issues

[0010] The purpose of this disclosure is to provide a method and apparatus for resolving problems that may occur when transmitting data to be sent in CG resources and having short transmission time requirements, when the configured license is configured as a terminal.

[0011] Technical solution

[0012] A method for resolving the above-mentioned problems, performed by a terminal in a wireless communication system according to embodiments of the present disclosure, may include: receiving a control message from a base station including configured grant (CG) configuration information; identifying, based on the CG configuration information, information configured to indicate deactivation monitoring for retransmission; receiving information about uplink transmissions via a physical downlink control channel (PDCCH), wherein the information about uplink transmissions is associated with a scheduled radio network temporary identifier (CS-RNTI) configured with a new data indicator (NDI) set to 0; and driving a discontinuous reception (DRX)-hybrid automatic repeat request (HARQ)-round-trip time (RTT) timer after the first uplink data transmission, based on the information received via the PDCCH.

[0013] A terminal in a wireless communication system according to another embodiment of the present disclosure may include: a transceiver; and a controller configured to perform control to receive control messages from a base station via the transceiver, including configured authorization (CG) configuration information, identify deactivation information configured to indicate retransmission monitoring based on the CG configuration information, receive information about uplink transmissions via a physical downlink control channel (PDCCH), wherein the information about uplink transmissions is associated with a configured scheduled radio network temporary identifier (CS-RNTI) having a new data indicator (NDI) set to 0, and drive a discontinuous reception (DRX)-hybrid automatic repeat request (HARQ)-round-trip time (RTT) timer after the first uplink data transmission based on the information received via the PDCCH.

[0014] Beneficial effects

[0015] According to embodiments of this disclosure, when the configured authorization is configured, data to be sent and received in CG resources can be sent and received efficiently, even when the data has short transmission time requirements. Attached Figure Description

[0016] Figure 1 This is a diagram illustrating an authorized transmission operation scheme configured according to an embodiment of the present disclosure.

[0017] Figure 2 This is a diagram illustrating an authorized transmission operation scheme configured according to an embodiment of the present disclosure.

[0018] Figure 3This is a diagram illustrating an authorized transmission operation scheme configured according to an embodiment of the present disclosure.

[0019] Figure 4 This is a diagram illustrating a terminal operation scheme scheduled according to a PDCCH according to an embodiment of the present disclosure.

[0020] Figure 5 This is a diagram illustrating a terminal operation scheme based on the transmission using CG resources according to an embodiment of the present disclosure.

[0021] Figure 6 This is a diagram illustrating an authorized transmission operation scheme configured according to an embodiment of the present disclosure.

[0022] Figure 7 This is a diagram illustrating a terminal operation scheme based on the transmission using CG resources according to an embodiment of the present disclosure.

[0023] Figure 8 This is a diagram illustrating a terminal operation scheme based on the transmission using CG resources according to an embodiment of the present disclosure.

[0024] Figure 9 This is a diagram illustrating an authorized transmission operation scheme configured according to an embodiment of the present disclosure.

[0025] Figure 10 This is a diagram illustrating an authorized transmission operation scheme configured according to an embodiment of the present disclosure.

[0026] Figure 11 This is a diagram illustrating an authorized transmission operation scheme configured according to an embodiment of the present disclosure.

[0027] Figure 12 This is a diagram illustrating a logical channel priority (LCP) constraint change operation scheme according to an embodiment of the present disclosure.

[0028] Figure 13 The structure of a base station according to an embodiment of the present disclosure is shown.

[0029] Figure 14 The structure of a UE according to an embodiment of the present disclosure is shown. Detailed Implementation

[0030] The operating principles of this disclosure will be described in detail below with reference to the accompanying drawings. Furthermore, detailed descriptions of known functions or configurations that may obscure the subject matter of this disclosure will be omitted. The terminology described below is defined with reference to the functions in this disclosure and may vary depending on the user, the user's intent, or habits. Therefore, the definition of terminology should be based on the entire contents of this specification.

[0031] In the following description, for ease of description, terms for identifying access nodes, referring to network entities, referring to messages, referring to interfaces between network entities, referring to various types of identification information, etc., are used illustratively. Therefore, this disclosure is not limited to the terms described below, and other terms that refer to the subject matter with equivalent technical meaning may also be used.

[0032] In the following description, a base station is an entity that allocates resources to a terminal and can be at least one of a gNode B, eNode B, Node B, base station (BS), radio access unit, base station controller, and node on a network. A terminal can include a user equipment (UE), mobile station (MS), cellular phone, smartphone, computer, or multimedia system capable of performing communication functions. In this disclosure, "downlink (DL)" refers to a radio link through which a base station transmits signals to a terminal, and "uplink (UL)" refers to a radio link through which a terminal transmits signals to a base station. Furthermore, while LTE or LTE-A systems are described by way of example in the following description, embodiments of this disclosure can also be applied to other communication systems with similar technical backgrounds or channel types. Examples of such communication systems may include fifth-generation mobile communication technologies (5G, new radio, and NR) developed beyond LTE-A, and in the following description, "5G" can be a concept covering existing LTE, LTE-A, and other similar services. Moreover, based on the determination of those skilled in the art, this disclosure can also be applied to other communication systems with some modifications without significantly departing from the scope of this disclosure. In this article, it will be understood that each box in a flowchart diagram, as well as combinations of boxes in a flowchart diagram, can be implemented by computer program instructions.

[0033] These computer program instructions may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in one or more flowchart blocks. These computer program instructions may also be stored in a computer-usable or computer-readable storage medium, which may instruct the computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-usable or computer-readable storage medium produce an article of writing including means for implementing the functions specified in the flowchart blocks or blocks. The computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process, such that the instructions, which execute on the computer or other programmable apparatus, provide steps for implementing the functions specified in one or more flowchart blocks.

[0034] Furthermore, each box in the flowchart may represent a module, fragment, or portion of code, which includes one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions marked in the boxes may occur out of order. For example, two boxes shown consecutively may actually execute substantially simultaneously, or these boxes may sometimes execute in reverse order, depending on the functions involved. As used in embodiments of this disclosure, the term "cell" refers to a software element or hardware element, such as a field-programmable gate array (FPGA) or application-specific integrated circuit (ASIC), and a "cell" may perform certain functions. However, "cell" does not always have a meaning limited to software or hardware. A "cell" may be configured to be stored in addressable storage media or to execute one or more processors. Thus, a "cell" includes, for example, software elements, object-oriented software elements, class elements or task elements, processes, functions, attributes, procedures, subroutines, program code segments, drivers, firmware, microcode, circuits, data, databases, data structures, tables, arrays, and parameters. The elements and functions provided by a "cell" may be combined into a smaller number of elements or "cells," or divided into a larger number of elements or "cells." Furthermore, the element and "unit" can be implemented as one or more CPUs within a playback device or a secure multimedia card. Additionally, the "unit" in the embodiments may include one or more processors.

[0035] In the following description of this disclosure, for ease of description, the terms and names defined in the 5GS and NR standards, which are existing communication standards defined by the 3rd Generation Partnership Project (3GPP) group, will be used. However, this disclosure is not limited to these terms and names and can be applied in the same manner to systems conforming to other standards. For example, this disclosure can be applied to 3GPP 5GS / NR (the fifth-generation mobile communication standard).

[0036] In describing this disclosure below, detailed descriptions of known functions or configurations will be omitted where it is determined that the description may unnecessarily obscure the subject matter of the disclosure. Embodiments of the disclosure will be described below with reference to the accompanying drawings.

[0037] Figure 1 This is a diagram illustrating an authorized transmission operation scheme configured according to an embodiment of the present disclosure.

[0038] In wireless communication systems, uplink radio resources (uplink grants) sent by a UE to a base station can be classified into Dynamic Grant (DG) and Configuration Grant (CG) according to the resource allocation scheme. A DG is a radio resource in which the base station specifies the location of the resource via Downlink Control Information (DCI) messages on the Physical Downlink Control Channel (PDCCH), and this radio resource indicates a single-use resource. A CG is a radio resource in which the base station configures a periodicity via Radio Resource Control (RRC) messages, and this radio resource repeats at a predetermined period. CGs are classified into Type 1 (Type-1) CGs and Type 2 (Type-2) CGs. Type 1 CGs are activated immediately upon configuration via RRC messages depending on the type, while Type 2 CGs are configured via RRC messages and then activated by configuring the location of the first resource on the PDCCH physical channel via DCI messages using a configured Scheduled Radio Network Temporary Identifier (CS-RNTI). When a Type 2 CG is activated, it can have a format of periodically repeating resources based on the first configuration. When the second type of CG is activated, the first resource indicated is an uplink radio resource whose location is indicated by the PDCCH physical channel. Therefore, the resource has the characteristics of a DG, and since it is also part of the CG configuration in which subsequent resources are periodically repeated, the resource also has the characteristics of a CG.

[0039] Figure 1 The embodiments illustrate the repeated periodic configuration of CG resources 100, 110, or 120, and the use of CG resources 100, 110, or 120 for transmission. Using CG resources for transmission means that the UE sends data, referred to as a Media Access Control Protocol Data Unit (MAC PDU) or Transport Block (TB), to the base station using the CG resources. When the UE sends a MAC PDU to the base station in this manner using CG resources, the UE's MAC layer can deliver the MAC PDU to be sent to the HARQ procedure, can instruct the corresponding HARQ procedure to trigger a new transmission, and can start ConfiguredGrantTimer 101 at the start time of the first symbol of the Physical Uplink Shared Channel (PUSCH) that sent the CG. While ConfiguredGrantTimer 101 is running, other CG transmissions using the same HARQ procedure are not executed. Therefore, during the operation of ConfiguredGrantTimer 101, retransmission resources for CGs sent by the base station can be allocated using CS-RNTI. Figure 1In this embodiment, it is assumed that the length of ConfiguredGrantTimer 101 is twice the length of the CG period, but the length of ConfiguredGrantTimer 101 can be configured by the base station for the UE via RRC messages.

[0040] When a UE transmits a MAC PDU on the uplink via CG, drx-HARQ-RTT-TimerUL 102 can be initiated according to a Discontinuous Receive (DRX) scheme configured to reduce UE power consumption. drx-HARQ-RTT-TimerUL 102 can begin only when an actual CG transmission is performed, and in the case of unlicensed bands, when Listen-After-Talk (LBT) fails to be delivered from the lower layer. In this case, the start time of drx-HARQ-RTT-TimerUL 102 can be the first symbol immediately following the end time of the PUSCH in which the CG transmission is performed. If CG bundling is configured and CG resources are repeated using multiple PUSCH physical channels, drx-HARQ-RTT-TimerUL 102 can begin based on the first or last transmission of the bundle (depending on whether drx-LastTransmissionUL is configured), at the first symbol immediately following the end time of the corresponding bundle transmission. drx-HARQ-RTT-TimerUL 102 can typically be configured to indicate the minimum time required for the base station to retransmit resources via the PDCCH physical channel when reception fails after decoding CG resources received from the UE. After drx-HARQ-RTT-TimerUL 102 expires, the UE can initiate drx-RetransmissionTimerUL 103. The time during drx-RetransmissionTimerUL 103 operation is considered the active time for the corresponding DRX group, and during this time, the UE's MAC entity is required to perform PDCCH monitoring.

[0041] Figure 2 This is a diagram illustrating an authorized transmission operation scheme configured according to an embodiment of the present disclosure.

[0042] The configuration of the CG (excluding information about the location of resources configured when the CG is activated) can be included in the CG configuration of the RRC message and sent by the base station to the UE. When the data to be transmitted by the configured CG resources has short transmission time requirements, such as in motion control, high-speed multimedia, extreme reality (XR), or ultra-reliable and low-latency communication (URLLC), retransmission after transmission via the CG may not meet the transmission time requirements. In this case, the base station may not allocate retransmission resources, so that the UE does not perform retransmission after the CG transmission.

[0043] Since the allocation of retransmission resources and the retransmission time are determined by the base station, the UE needs to start ConfiguredGrantTimer 201 to prepare for retransmission by the base station. If the base station does not perform retransmission for a specific CG, the UE does not need to start ConfiguredGrantTimer 201. Therefore, the base station can be configured to start ConfiguredGrantTimer 201 after the transmission of a CG for a specific CG. When such a configuration is set for each CG, the start of ConfiguredGrantTimer 201 after the CG transmission can be configured in the CG config. Furthermore, the start of ConfiguredGrantTimer 201 can be applied to all HARQ procedures used for CG transmission when transmitting CG resources corresponding to the CG configuration. In another embodiment, the start of ConfiguredGrantTimer 201 can be configured for each HARQ procedure after the CG transmission. For example, ConfiguredGrantTimer can be configured not to start after the transmission of CGs corresponding to HARQ procedure ID 2 and HARQ procedure ID 3 for SCell 1. In this scenario, the PUSCH-ServingCellConfig can be configured to start the ConfiguredGrantTimer for each HARQ procedure during CG transmission. A HARQ procedure configured not to start the ConfiguredGrantTimer after CG transmission can be referred to as a Mode B HARQ procedure. Subsequently, when a MAC PDU is sent to the base station using the predetermined CG resource 200, the UE's MAC layer can deliver the MAC PDU to be sent to the HARQ procedure, instructing the corresponding HARQ procedure to trigger a new transmission. If the CG or the HARQ procedure corresponding to the CG is configured not to start the ConfiguredGrantTimer, the start of the ConfiguredGrantTimer 201 at the start time of the first symbol of the Physical Uplink Shared Channel (PUSCH) on which the CG is transmitted can be avoided. If the CG or the HARQ procedure corresponding to the CG is configured to start the ConfiguredGrantTimer 201, then the ConfiguredGrantTimer 201 can start at the start time of the first symbol of the Physical Uplink Shared Channel (PUSCH) on which the CG is transmitted.The configuration for not starting ConfiguredGrantTimer 201 after CG transmission can also be applied to the first CG resource, which indicates the activation of the CG resource on the PDCCH physical channel by using uplink CG radio resources and CS-RNTI, and the location of the first CG resource is configured.

[0044] Since the allocation of retransmission resources and the retransmission time are determined by the base station, the UE needs to start drx-HARQ-RTT-TimerUL 202 to prepare for retransmission by the base station. If the base station does not perform retransmission for a specific CG, the UE does not need to start drx-HARQ-RTT-TimerUL 202. If the UE does not start drx-HARQ-RTT-TimerUL 202, the UE will not subsequently start drx-RetransmissionTimerUL 203, thereby reducing the UE's power consumption. For this purpose, the base station can configure the UE to start drx-HARQ-RTT-TimerUL 202 after the transmission of a specific CG. When such a configuration is set for each CG, the start of drx-HARQ-RTT-TimerUL 202 after CG transmission can be configured in the CG config, and whether or not to start drx-HARQ-RTT-TimerUL 202 can be applied to all HARQ procedures used for CG transmission when transmitting CG resources corresponding to the CG configuration. In another embodiment, each HARQ procedure can be configured to start drx-HARQ-RTT-TimerUL 202 after the CG transmission. For example, drx-HARQ-RTT-TimerUL 202 can be configured not to start after the CG transmission of HARQ procedure ID 2 and HARQ procedure ID 3 corresponding to SCell 1. In this case, it can be configured in PUSCH-ServingCellConfig whether drx-HARQ-RTT-TimerUL 202 starts for each HARQ procedure during the CG transmission. Such a HARQ procedure configured not to start drx-HARQ-RTT-TimerUL 202 after the CG transmission can be referred to as a Mode B HARQ procedure. When a MAC PDU is actually sent to the base station using CG resource 200, the UE's MAC layer can deliver the MAC PDU to be sent to the HARQ procedure, can instruct the corresponding HARQ procedure to trigger a new transmission, and if the CG or the HARQ procedure corresponding to the CG is configured not to start drx-HARQ-RTT-TimerUL 202, then starting drx-HARQ-RTT-TimerUL 202 at the first symbol immediately after the end time of the PUSCH in which the CG transmission is performed can be avoided. If the CG or the HARQ procedure corresponding to the CG is configured to start drx-HARQ-RTT-TimerUL 202, then drx-HARQ-RTT-TimerUL 202 can start at the first symbol immediately after the end time of the PUSCH in which the CG transmission is performed.Subsequently, the UE can initiate drx-RetransmissionTimerUL 203 at the expiration time of drx-HARQ-RTT-TimerUL 202 and can identify whether the base station indicates a retransmission. The configuration for not initiating drx-HARQ-RTT-TimerUL 202 after CG transmission can also be applied to a first CG resource, which indicates the activation of the CG resource on the PDCCH physical channel using uplink CG radio resources and CS-RNTI, and the location of the first CG resource is configured. In some embodiments, whether to start ConfiguredGrantTimer and drx-HARQ-RTT-TimerUL after CG transmission can be delivered to the UE by the base station using a common configuration value.

[0045] Figure 3 This is a diagram illustrating an authorized transmission operation scheme configured according to an embodiment of the present disclosure.

[0046] The configuration of the CG (excluding information about the location of the resources configured when the CG is activated) can be included in the CG Config of the RRC message and sent by the base station to the UE. When the data to be transmitted by the configured CG resources has short transmission time requirements, such as in motion control, high-speed multimedia, extreme reality (XR), or ultra-reliable and low-latency communication (URLLC), retransmission after transmission via the CG may not meet the transmission time requirements. In this case, the base station may not allocate retransmission resources, so that the UE does not perform retransmission after the CG transmission. However, when the CG resource is activated by using CS-RNTI (New Data Indicator (NDI) = 0) on the PDCCH (320), the uplink radio resources allocated in this way can be configured to send the configured Authorization Acknowledgment (CGC) MAC control element (CE) via the CG resource, thereby indicating that the CG resource activation indication has been received and applied. Since the base station needs to receive the CGC message to identify that the UE has completed the activation of the CG resource, it may be necessary to perform a retransmission for the first CG resource including the CGC message. Even when the ConfiguredGrantTimer or drx-HARQ-RTT-TimerUL used for the corresponding HARQ procedure is configured not to start during the transfer of the corresponding CG resource, it may be necessary to start ConfiguredGrantTimer 301 or drx-HARQ-RTT-TimerUL 302 for the first CG resource indicated by PDCCH by using CS-RNTI (NDI=0).

[0047] exist Figure 3In this embodiment, it is assumed that when CG A is configured, the available HARQ procedure ID (HPI) is set to 0, 1, and 2, and HARQ mode B (330) is configured during CG transmission, in which either ConfiguredGrantTimer or drx-HARQ-RTT-TimerUL is not started. Subsequently, when the resource corresponding to the CG is activated via PDCCH, the UE can perform a first CG transmission 300 and start ConfiguredGrantTimer 301 at the start time of the first symbol of CG 300 transmitted thereon. Additionally, when the resource of the CG is activated by PDCCH, the UE can perform a first CG transmission 300 and start drx-HARQ-RTT-TimerUL 302 at the first symbol immediately following the end time of the PUSCH in which CG transmission 300 is performed. If CG bundling is configured and CG resources are repeated using multiple PUSCH physical channels, drx-HARQ-RTT-TimerUL302 can start at the first symbol immediately following the time point after the end of the corresponding bundle transmission, based on the first or last transmission of the bundle (depending on whether drx-LastTransmissionUL is configured).

[0048] In the case where the CG resource is not the first resource activated by the PDCCH, since the resource is a repeated resource without indication on the PDCCH, the ConfigurationdGrantTimer 311 or drx-HARQ-RTT-TimerUL 312 may not be started at the next CG transmission 310, depending on the configuration of the CG configured by the RRC message (330).

[0049] Since the allocation of retransmission resources and the retransmission timing are determined by the base station, the UE needs to start the ConfiguredGrantTimer to prepare for retransmission by the base station. If the base station does not perform retransmission for a specific CG, the UE does not need to start the ConfiguredGrantTimer. Therefore, the base station can be configured to start the ConfiguredGrantTimer after the CG transmission for a specific CG. When such a configuration is set for each CG, the start of the ConfiguredGrantTimer after the CG transmission can be configured in the CG config, and whether or not to start the ConfiguredGrantTimer can be applied to all HARQ procedures used for CG transmission during the transmission of CG resources corresponding to the CG configuration. In another embodiment, the start of the ConfiguredGrantTimer can be configured for each HARQ procedure after the CG transmission. For example, the ConfiguredGrantTimer can be configured not to start after the CG transmission corresponding to HARQ procedure IDs 2 and 3 of SCell 1. In this case, the base station can be configured in the PUSCH-ServingCellConfig to start the ConfiguredGrantTimer for each HARQ procedure during CG transmission. A HARQ procedure configured not to start the ConfiguredGrantTimer after a CG transmission can be referred to as a Mode B HARQ procedure. Subsequently, when a MAC PDU is actually sent to the base station using CG resource 310, the UE's MAC layer can deliver the MAC PDU to be sent to the HARQ procedure and can instruct the corresponding HARQ procedure to trigger a new transmission. When CG 310 or the HARQ procedure corresponding to CG 310 is configured not to start the ConfiguredGrantTimer, the ConfiguredGrantTimer 311 may not start at the start time of the first symbol of the PUSCH of CG 310 transmitted on it. When CG 310 or the HARQ procedure corresponding to CG 310 is configured to start the ConfiguredGrantTimer, the ConfiguredGrantTimer 311 may start at the start time of the first symbol of the PUSCH transmitted on it.

[0050] Since the allocation of retransmission resources and the retransmission timing are determined by the base station, the UE needs to start drx-HARQ-RTT-TimerUL to prepare for retransmission by the base station. If the base station does not perform retransmission for a specific CG, the UE does not need to start drx-HARQ-RTT-TimerUL. If the UE does not start drx-HARQ-RTT-TimerUL, the UE will not subsequently start drx-RetransmissionTimerUL, thereby reducing the UE's power consumption. For this purpose, the base station can be configured to start drx-HARQ-RTT-TimerUL after CG transmission for a specific CG. When such a configuration is set for each CG, the base station can configure in CGConfig whether to start drx-HARQ-RTT-TimerUL after CG transmission, and can apply the configuration regarding whether to start drx-HARQ-RTT-TimerUL to all HARQ procedures used for CG transmission when transmitting CG resources corresponding to the CG configuration. In another embodiment, each HARQ procedure can be configured to start drx-HARQ-RTT-TimerUL after CG transmission. For example, drx-HARQ-RTT-TimerUL can be configured not to start after CG transmission corresponding to HARQ procedure ID 2 and HARQ procedure ID 3 of SCell 1. In this case, it can be configured in PUSCH-ServingCellConfig whether drx-HARQ-RTT-TimerUL starts during CG transmission for each HARQ procedure. Such a HARQ procedure configured not to start drx-HARQ-RTT-TimerUL after CG transmission can be referred to as a Mode B HARQ procedure. Subsequently, when the MAC PDU is actually sent to the base station using CG resource 310, the UE's MAC layer can deliver the MAC PDU to be sent to the HARQ procedure and can instruct the corresponding HARQ procedure to trigger a new transmission. If the CG or the corresponding HARQ procedure is configured not to start drx-HARQ-RTT-TimerUL, the UE may not start drx-HARQ-RTT-TimerUL at the first symbol immediately following the end time of the PUSCH in which the CG transmission is performed. If the CG or the corresponding HARQ procedure is configured to start drx-HARQ-RTT-TimerUL, the UE may start drx-HARQ-RTT-TimerUL at the first symbol immediately following the end time of the PUSCH in which the CG transmission is performed. Thereafter, the UE may start drx-RetransmissionTimerUL at the time when drx-HARQ-RTT-TimerUL expires, and may recognize whether the base station has indicated a retransmission.In some embodiments, whether to start the ConfiguredGrantTimer and drx-HARQ-RTT-TimerUL after CG transmission can be delivered to the UE by the base station using a common configuration value.

[0051] Figure 4 This is a diagram illustrating a UE operation scheme scheduled according to a PDCCH according to an embodiment of the present disclosure.

[0052] The UE can monitor the PDCCH physical channel using an RNTI (such as C-RNTI or CS-RNTI) configured for the UE. According to an embodiment, if a DRX is configured in a DRX group configured for the UE, the UE can perform PDCCH monitoring only during the active period of the DRX.

[0053] according to Figure 4In one embodiment, in step 410, uplink transmissions may be indicated on the PDCCH monitored by the UE. Indicating uplink transmissions on the PDCCH can be considered a DG transmission, but it can also include the case where a second type of uplink CG is activated and a transmission of a first CG resource is indicated. In this case, the UE can determine whether to initiate drx-HARQ-RTT-TimerUL based on the characteristics of the uplink transmission resource indicated on the PDCCH. For example, in step 420, the UE can identify whether the uplink transmission indicated on the PDCCH is an uplink radio resource allocated by CS-RNTI and configured with NDI=0, and identify whether this indicates a first CG transmission by activating a second type of CG, and whether the CG is configured not to initiate drx-HARQ-RTT-TimerUL. A CG configured not to initiate drx-HARQ-RTT-TimerUL can instruct the base station not to allow the UE to perform retransmissions for the corresponding CG. In step 420, if the uplink transmission indicated on the PDCCH is allocated by the CS-RNTI and configured with uplink radio resources of NDI=0, and this indicates that the first CG transmission by activating the second type CG is a CG configured not to start drx-HARQ-RTT-TimerUL (if the CG in which retransmission is not assumed or the HARQ procedure corresponding to the corresponding CG is configured to HARQ mode B), then the UE's MAC layer can perform the transmission of the corresponding CG resource and can not start drx-HARQ-RTT-TimerUL. In step 420, if the uplink transmission indicated on the PDCCH is allocated by the CS-RNTI and configured with uplink radio resources of NDI=0, and this indicates that the first CG transmission by activating the second type CG is not a CG configured not to start drx-HARQ-RTT-TimerUL, then drx-HARQ-RTT-TimerUL can begin at the first symbol immediately following the end of the corresponding PUSCH transmission. If CG is bundled, drx-HARQ-RTT-TimerUL can start at the first symbol immediately after the end of the first bundled transmission or at the first symbol immediately after the end of the last bundled transmission, depending on whether drx-LastTransmissionUL is configured (step 430).

[0054] Figure 5 This is a diagram illustrating a UE operation scheme based on a transmission using CG resources according to an embodiment of the present disclosure.

[0055] according to Figure 5In an embodiment, in step 510, when the MAC PDU is actually sent to the base station using CG resources, the MAC layer of the UE can deliver the MAC PDU to be sent to the HARQ procedure and can instruct the corresponding HARQ procedure to trigger a new transmission.

[0056] In this case, in step 520, it can be identified whether the HARQ procedure for the CG is not configured such that the ConfiguredGrantTimer does not start during CG transmission, or whether the CG resource corresponds to an active resource of a second type CG configured with CS-RNTI and NDI=0 on the PDCCH. If the HARQ procedure for the CG is not configured such that the ConfiguredGrantTimer does not start during CG transmission, or if the CG resource corresponds to an active resource of a second type CG configured with CS-RNTI and NDI=0 on the PDCCH, then the ConfiguredGrantTimer can start at the start time of the first symbol of the PUSCH on which the CG is transmitted. Furthermore, the cg-RetransmissionTimer can also start at the same time point (e.g., at the time when the ConfiguredGrantTimer starts) (step 530). For example, in the case of an active resource of a second type CG, the ConfiguredGrantTimer can always start regardless of whether the ConfiguredGrantTimer is configured to start, thus ensuring the retransmission time of the corresponding CG. Therefore, the base station can request a retransmission for the CG transmission, which may include a CGC MAC CE. In step 520, if the HARQ procedure for the CG is configured such that the ConfiguredGrantTimer does not start during the CG transmission, or if the CG resource does not correspond to an active resource of a second type CG configured with CS-RNTI and NDI=0 on the PDCCH, then the ConfiguredGrantTimer may start at the start time of the first symbol of the PUSCH on which the CG is transmitted. Furthermore, the cg-RetransmissionTimer may not start at the same time (e.g., at the start time of the first symbol of the PUSCH on which the CG is transmitted).

[0057] Figure 6 This is a diagram illustrating an authorized transmission operation scheme configured according to an embodiment of the present disclosure.

[0058] The configuration of the CG (excluding information about the location of the resources configured when the CG is activated) can be included in the CG Config of the RRC message and sent by the base station to the UE. When the data to be transmitted by the configured CG resources has short transmission time requirements, such as in motion control, high-speed multimedia, extreme reality (XR), or ultra-reliable and low-latency communication (URLLC), retransmission after transmission via the CG may not meet the transmission time requirements. In this case, the base station may not allocate retransmission resources, so that the UE does not perform retransmission after the CG transmission. However, when the CG resources are deactivated by using CS-RNTI (NDI=0) on the PDCCH (620), the UE can send a configured authorization acknowledgment (CGC) MAC control element (CE) via the CG resources. This CGC MAC CE indicates that the UE has received and applied the deactivation indication for the CG resources allocated in this manner for the uplink radio resources. Since the base station needs to receive the CGC message to identify that the UE has completed the deactivation of the CG resources, it may need to perform retransmission for the first CG resource including the CGC message. Then, the UE can immediately apply the deactivation of the corresponding CG after sending the CGC message to clear the corresponding CG resource. Even if the ConfiguredGrantTimer or drx-HARQ-RTT-TimerUL used for the corresponding HARQ procedure is configured not to start during the transmission of the corresponding CG resource, the UE may still need to start ConfiguredGrantTimer 601 or drx-HARQ-RTT-TimerUL602 for the resource, where the PDCCH indicates the deactivation of the CG for the resource by using CS-RNTI (NDI=0) and the CGC message is sent for the resource.

[0059] exist Figure 6In the embodiment, it is assumed that when CG A is configured, the available HARQ procedure ID (HPI) is set to 0, 1, and 2, and HARQ mode B is configured during CG transmission, where ConfiguredGrantTimer or drx-HARQ-RTT-TimerUL (630) is not started. Subsequently, when the resource corresponding to the CG is deactivated by the PDCCH and the UE cannot transmit a CGC message on another radio resource, the UE can perform CG resource transmission on CG resource 600. In this case, the UE can start ConfiguredGrantTimer 601 at the start time of the first symbol on which the CG resource is transmitted. Alternatively, when the CG resource is deactivated by the PDCCH, the UE can perform a first CG transmission 600 and start drx-HARQ-RTT-TimerUL 602 at the first symbol immediately following the end time of the PUSCH in which CG transmission 600 is performed. If CG bundling is configured and CG resources are repeated using multiple PUSCH physical channels, the UE can start drx-HARQ-RTT-TimerUL at the first symbol immediately following the time point at which the corresponding bundled transmission ends, based on the first or last transmission of the bundle (depending on whether drx-LastTransmissionUL is configured).

[0060] Figure 7 This is a diagram illustrating a UE operation scheme based on a transmission using CG resources according to an embodiment of the present disclosure.

[0061] exist Figure 7In this embodiment, it is assumed that when a MAC PDU is actually sent to the base station using CG resources, the UE's MAC layer delivers the MAC PDU to be sent to the HARQ procedure and instructs the corresponding HARQ procedure to trigger a new transmission. The CG resource used may be the first resource of an active CG that is indicated by the PDCCH for uplink transmission using CS-RNTI, or a CG resource not indicated by the PDCCH (step 710). Additionally, it is assumed that the CG resource or the HARQ procedure used by the CG resource is configured by the base station such that drx-HARQ-RTT-TimerUL does not start. In this case, the UE can identify whether the CGC MAC CE is included in the CG resource and use the CG resource to transmit (step 720). If the CGC MAC CE is included in the CG resource and is transmitted using the CG resource, the base station may need to request a retransmission of the corresponding CG resource in order to receive the CGC MAC CE included in the CG. The base station cannot identify whether the CGC MAC CE is included in the CG resource until it is successfully received. However, since the UE is required to send the CGC MAC CE when the CG is activated or deactivated, the base station can estimate the location of the CG resource expected to include the CGC MAC CE. To perform this retransmission, the UE's MAC device can start drx-HARQ-RTT-TimerUL at the first symbol immediately after the end of the corresponding PUSCH transmission. If the CG is bundled, the UE can start drx-HARQ-RTT-TimerUL at the first symbol immediately after the end of the first bundle transmission or at the first symbol immediately after the end of the last bundle transmission, depending on whether drx-LastTransmissionUL is configured (step 730). In step 720, if the CGC MAC CE is not included in the transmission using the CG resource, the UE can perform the transmission of the corresponding CG resource and may not start drx-HARQ-RTT-TimerUL.

[0062] Figure 8 This is a diagram illustrating a UE operation scheme based on a transmission using CG resources according to an embodiment of the present disclosure.

[0063] exist Figure 8In this embodiment, it is assumed that when a MAC PDU is actually sent to the base station using CG resources, the UE's MAC layer delivers the MAC PDU to be sent to the HARQ procedure and instructs the corresponding HARQ procedure to trigger a new transmission. The CG resources used may be the first resource of an active CG indicated by the PDCCH for uplink transmission using CS-RNTI, or a CG resource not indicated by the PDCCH (step 810). Additionally, it is assumed that the CG resources or the HARQ procedure used by the CG resources are configured by the base station such that the ConfiguredGrantTimer does not start. In this case, the UE can identify whether the CGC MAC CE is included in the CG resources and use the CG resources to transmit (820). If the CGC MAC CE is included in the CG resources and is transmitted using the CG resources, the UE can start the ConfiguredGrantTimer at the start time of the first symbol of the PUSCH on which the CG is transmitted. Furthermore, the UE can also start the cg-RetransmissionTimer at the same time point (e.g., at the time when the ConfiguredGrantTimer starts) (step 830). For example, in the case of activated resources for the second type of CG, the UE can always start the ConfiguredGrantTimer, regardless of whether the ConfiguredGrantTimer is configured, thus ensuring the retransmission time of the corresponding CG. Therefore, the base station can request a retransmission for the CG transmission, which may include a CGC MAC CE. In step 820, if the CGC MAC CE is not included in the transmission using the CG resources, the UE may not start the ConfiguredGrantTimer at the first symbol of the PUSCH on which the CG is transmitted. Furthermore, the UE may not start the cg-RetransmissionTimer at the same time point (e.g., at the time when the ConfiguredGrantTimer is started).

[0064] Figure 9 This is a diagram illustrating an authorized transmission operation scheme configured according to an embodiment of the present disclosure.

[0065] The configuration of the CG (excluding information about the location of resources configured when the CG is activated) can be included in the CG configuration of the RRC message and sent by the base station to the UE. When data to be transmitted by the configured CG resources has short transmission time requirements, such as in motion control, high-speed multimedia, XR, or URLLC, retransmission after transmission via the CG may not meet the transmission time requirements. In this case, the base station may not allocate retransmission resources, so that the UE does not perform retransmission with an excessively long delay after CG transmission, or it may allocate only a predetermined number of retransmissions. Figure 9 In this embodiment, it is assumed that the available HARQ procedure ID (HPI) is set to 0, 1, and 2 when configuring CGA, and HARQ mode B is configured during CG transmission and retransmission, wherein ConfiguredGrantTimer or drx-HARQ-RTT-TimerUL is not started after the Nth retransmission (where N is a non-negative integer). Figure 9In the embodiment, as an example, N is set to 2 (930). Thereafter, the UE can perform a CG transmission 900 using the transmission resources of the CG, and can start ConfiguredGrantTimer 901 at the start time point of the first symbol of the CG transmitted thereon. Additionally, the UE can start drx-HARQ-RTT-TimerUL 902 at the first symbol immediately after the end time point of the PUSCH on which the CG transmission is performed. If CG bundling is configured and CG resources are repeated using multiple PUSCH physical channels, the UE can start drx-HARQ-RTT-TimerUL at the first symbol immediately after the end time point of the corresponding bundled transmission, based on the first or last transmission of the bundle (depending on whether drx-LastTransmissionUL is configured). Thereafter, the base station can allocate retransmission resources for the corresponding CG transmission 900 (910). This retransmission of the CG transmission can be configured when using CS-RNTI and the DCI message transmitted on the PDCCH physical resource has NDI=1. Since this is the first retransmission resource and the N value of 2 has not yet been reached, the UE can start ConfiguredGrantTimer 911 at the start time of the first symbol of the retransmission resource of the CG. Additionally, the UE can start drx-HARQ-RTT-TimerUL 912 at the first symbol immediately after the end time of the PUSCH on which the retransmission resource of the CG is transmitted. If the CG bundle is configured for the CG retransmission resource, allowing repeated transmissions using multiple PUSCH physical channels, the UE can start drx-HARQ-RTT-TimerUL at the first symbol immediately after the end time of the corresponding bundle transmission, based on either the first or last transmission of the bundle (depending on whether drx-LastTransmissionUL is configured). Afterward, the base station can allocate retransmission resource 920 for the first retransmission 910 of the corresponding CG. This type of retransmission of the CG transmission can be configured when using CS-RNTI and the DCI message transmitted on the PDCCH physical resource has NDI=1. Since this is the second retransmission resource and the N value has already reached 2, the UE does not need to start ConfiguredGrantTimer 921 at the start time of the first symbol of the retransmission resource that transmits CG. Additionally, the UE does not need to start drx-HARQ-RTT-TimerUL922 at the first symbol immediately after the end time of the PUSCH of the retransmission resource that transmits CG.

[0066] exist Figure 9In this embodiment, it is assumed that in the HARQ mode B configuration, both ConfiguredGrantTimer and drx-HARQ-RTT-TimerUL are not started after N retransmissions. However, it is also possible that only at least one of the two timers is not started. Subsequently, when performing the initial transmission using CG resources, the retransmission count can be initialized to 0. Furthermore, the base station can configure a value of N for the UE based on each CG configuration.

[0067] Figure 10 This is a diagram illustrating an authorized transmission operation scheme configured according to an embodiment of the present disclosure.

[0068] The configuration of the CG (excluding information about the location of resources configured when the CG is activated) can be included in the CG Config of the RRC message and sent by the base station to the UE. When the data to be transmitted by the configured CG resources has short transmission time requirements, such as in motion control, high-speed multimedia, XR, or URLLC, retransmission after transmission via the CG may not meet the transmission time requirements. In this case, the base station may not allocate retransmission resources, so that the UE does not perform retransmission with an excessively long delay after CG transmission, or it may allocate only a predetermined number of retransmissions. Furthermore, due to transmission time requirements, retransmission may need to be completed within a predetermined time period. Such characteristics can vary depending on each service type and may also differ for each logical channel or radio bearer through which the corresponding service is transmitted. When the data for each logical channel has such strict transmission time requirements, a specific CG can be configured to be used by the logical channel. For such a specific CG, the base station can configure the values ​​of drx-HARQ-RTT-TimerUL or drx-RetransmissionTimerUL, which are used only by the CG to meet the requirements of the data to be transmitted. Figure 10In this embodiment, it is assumed that when CG A is configured, the available HARQ procedure ID (HPI) is set to 0, 1, and 2, and the value of drx-RetransmissionTimerUL in the CG configuration is 10 time slots and the value of drx-HARQ-RTT-TimerUL is 8 symbols. In this case, where drx-RetransmissionTimerUL or drx-HARQ-RTT-TimerUL is configured in the CG configuration in this way, the UE can ignore the values ​​of drx-RetransmissionTimerUL or drx-HARQ-RTT-TimerUL in the DRX configuration of the corresponding DRX group and use the values ​​specified in the CG configuration. If it is expected that the CG resources will not perform retransmissions, the base station can set the value of drx-RetransmissionTimerUL to 0. In the case of such a CG configuration, the UE can perform CG transmission and begin drx-HARQ-RTT-TimerUL (1002) by applying the value configured in the CG configuration to the first symbol immediately following the end time of the PUSCH in which the CG transmission is performed. If CG bundling is configured and CG resources are repeated using multiple PUSCH physical channels, the UE can start drx-HARQ-RTT-TimerUL at the first symbol immediately following the time point at which the corresponding bundled transmission ends, based on the first or last transmission of the bundle (depending on whether drx-LastTransmissionUL is configured). When drx-HARQ-RTT-TimerUL expires, the UE can start drx-RetransmissionTimerUL 1003 by applying the value configured in the CG configuration.

[0069] Figure 11 This is a diagram illustrating an authorized transmission operation scheme configured according to an embodiment of the present disclosure.

[0070] The configuration of the CG (excluding information about the location of resources configured when the CG is activated) can be included in the CG configuration of the RRC message and sent by the base station to the UE. When the data to be transmitted by the configured CG resources has short transmission time requirements, such as in motion control, high-speed multimedia, XR, or URLLC, retransmission after transmission via the CG may not meet the transmission time requirements. In this case, the UE may not allocate retransmission resources after the CG transmission. Therefore, if no further retransmission is performed after the initial transmission of the CG, the UE can refresh the HARQ buffer used for the corresponding CG transmission resources.

[0071] exist Figure 11In one embodiment, it is assumed that when CG A is configured, the available HARQ procedure ID (HPI) is set to 0, 1, and 2, and HARQ mode B, where the HARQ buffer is refreshed after the CG transmission, is configured (1130). Thereafter, the UE can perform the transmission of CG resource 1100. As described in another embodiment, when HARQ mode B is configured, the UE may not start drx-HARQ-RTT-TimerUL or ConfiguredGrantTimer. Furthermore, according to an embodiment, the UE can refresh the HARQ buffer for the corresponding CG's HARQ procedure after the CG transmission (1105). The configuration of HARQ mode B can be valid for all configured CG resources, and even after subsequent CG transmission 1110, the UE can refresh the HARQ buffer for the corresponding CG's HARQ procedure (1115). Figure 11 In this embodiment, it is assumed that the HARQ buffer is refreshed immediately after the initial CG transmission; however, the UE may also refresh the HARQ buffer after a non-negative integer N retransmissions. Thereafter, when performing the initial transmission using CG resources, the retransmission count can be initialized to 0. Furthermore, the base station can configure a value of N for the UE based on each CG configuration.

[0072] Figure 12 This is a diagram illustrating a logical channel priority (LCP) constraint change operation scheme according to an embodiment of the present disclosure.

[0073] In fifth-generation (5G) wireless communication systems, base stations can allocate various types of resources based on the service requirements of the UE. Specifically, when data transmitted by the UE has short transmission time requirements, such as in motion control, high-speed multimedia, XR, or URLLC, the base station can allocate CG resources, which can be used by the logical channel transmitting such data. In this case, DG can be used for the transmission of other general data, and the requirement that data to be transmitted using CG may not be met if it is transmitted via DG. Therefore, the base station can configure LCP restrictions, such as an allowed CG list, to allow only specific CGs to be used by the logical channel that wants to use the CG. Furthermore, since logical channels cannot use DG, the base station can configure allowedPHY-PriorityIndex to p0 (low priority) or p1 (high priority) and may not allocate DGs with configured physical layer priority (PHY priority) p0 or p1. However, if excessive traffic occurs at the UE or if the configured CG resources become unavailable due to de-prioritization of other resources, the UE 1200 may send a message to the base station 1210 requesting a change in the LCP limit, such as allowedPHY-PriorityIndex (1220). In another embodiment, instead of a request from the UE 1200 to the base station 1210, the UE 1200 may send its scheduling status to the base station 1210. For example, when considering the status of data that has arrived at the UE 1200, if the currently configured LCP limit cannot meet the transmission time requirements, the UE 1200 may use the message in step 1220 as a message to notify the base station 1210 of this situation. The status of data that has arrived at the UE 1200 may include at least one of the amount of data at the UE 1200, the remaining time before the packet is dropped at the Packet Data Convergence Protocol (PDCP) layer, or the dwell time of the packet at the PDCP or Serving Data Adaptation Protocol (SDAP) layer. The LCP limit change request message sent in step 1220 can be in the form of a MAC CE, a UE assistance information message, or another RRC message format. Subsequently, base station 1210 can identify that UE 1200 may not be able to process data correctly under the current LCP limit and can send a message instructing UE 1200 to change the LCP limit (step 1230). The LCP limit change message sent in step 1230 can be in the form of a MAC CE or an RRC reconfiguration message. Based on the received message, the UE can apply the new LCP limit (step 1240).

[0074] Figure 13 The structure of a base station according to an embodiment of the present disclosure is shown.

[0075] refer to Figure 13The base station may include a transceiver 1310, a controller 1320, and a storage device 1330.

[0076] Transceiver 1310 refers to a base station receiver and base station transmitter integrated as a whole, capable of transmitting / receiving signals with the UE, other base stations, or other network devices. The transmitted / received signals may include control information and data. Transceiver 1310 may transmit, for example, system information, synchronization signals, or reference signals to the UE. For this purpose, transceiver 1310 may include an RF transmitter configured to up-convert and amplify the frequency of the transmitted signal, an RF receiver configured to amplify the received signal with low noise and down-convert its frequency, etc. However, this is only one embodiment of transceiver 1310, and the components of transceiver 1310 are not limited to RF transmitters and RF receivers. Transceiver 1310 may include wired / wireless transceivers and may include various components for transmitting / receiving signals. Additionally, transceiver 1310 may receive signals via a communication channel (e.g., a radio channel), output them to controller 1320, and transmit signals output from controller 1320 via a communication channel. In addition, transceiver 1310 can receive communication signals, output them to the processor, and transmit signals output from the processor to the UE, other base stations, or other network entities via wired / wireless networks.

[0077] Storage device 1330 can store programs and data required for the operation of the base station. Furthermore, storage device 1330 can store control information or data included in signals acquired by the base station. Storage device 1330 may include storage media or combinations of storage media such as ROM, RAM, hard disk, CD-ROM, and DVD. Additionally, storage device 1330 can store at least one of information transmitted / received via transceiver 1310 and information generated via controller 1320.

[0078] As used herein, controller 1320 may be defined as a circuit, an application-specific integrated circuit (ASIC), or at least one processor. The processor may include a communication processor (CP) that performs control for communication and an application processor (AP) that controls upper layers such as applications. Controller 1320 may control the overall operation of the base station according to embodiments presented in this disclosure. For example, controller 1320 may control the signal flow between various blocks to perform operations according to the flowchart described above. According to embodiments of this disclosure, controller 1320 may control transceiver 1310 to generate configuration information for CG transmission and transmit the generated CG configuration information.

[0079] Figure 14 The structure of a UE according to an embodiment of the present disclosure is shown.

[0080] refer to Figure 14The UE may include a transceiver 1410, a controller 1420, and a storage device 1430. The transceiver 1410, controller 1420, and storage device 1430 can operate according to the communication method described above for the UE. The components of the UE are not limited to the examples described above. For example, the UE may include more or fewer components than those described above. For example, the UE may include transceiver 1410 and controller 1420. Furthermore, transceiver 1410, controller 1420, and storage device 1430 may be implemented as a single chip.

[0081] Transceiver 1410 refers to a UE receiver and UE transmitter as a whole, capable of transmitting / receiving signals with a base station, other UEs, and other network entities. Signals transmitted / received with the base station may include control information and data. Transceiver 1410 may receive, for example, system information, synchronization signals, or reference signals from the base station. For this purpose, transceiver 1410 may include an RF transmitter configured to up-convert and amplify the frequency of the transmitted signal, an RF receiver configured to amplify the received signal with low noise and down-convert its frequency, etc. However, this is only one embodiment of transceiver 1410, and the components of transceiver 1410 are not limited to RF transmitters and RF receivers. Furthermore, transceiver 1410 may include wired / wireless transceivers and may include various components for transmitting / receiving signals. Additionally, transceiver 1410 may receive signals via a radio channel, output them to controller 1420, and transmit signals output from controller 1420 via a radio channel. Furthermore, transceiver 1410 may receive communication signals, output them to a processor, and transmit signals output from the processor to network entities via a wired / wireless network.

[0082] Storage device 1430 can store programs and data necessary for the operation of the UE. Furthermore, the storage device can store control information or data included in signals acquired by the UE. Storage device 1430 may include storage media or combinations of storage media such as ROM, RAM, hard disk, CD-ROM, and DVD.

[0083] As used herein, controller 1420 may be defined as a circuit, an application-specific integrated circuit (ASIC), or at least one processor. The processor may include a communication processor (CP) that performs control for communication and an application processor (AP) that controls upper layers such as applications. Controller 1420 may control the overall operation of the UE according to embodiments set forth in this disclosure. For example, controller 1420 may control the signal flow between various blocks to perform operations according to the flowchart described above. According to embodiments of this disclosure, controller 1420 may identify CG configuration information received from a base station. Furthermore, controller 1420 may determine whether to operate any timers based on the CG configuration information.

[0084] The methods disclosed in the claims and / or the methods of the embodiments described in this disclosure may be implemented by hardware, software, or a combination of hardware and software.

[0085] When the method is implemented in software, a computer-readable storage medium may be provided for storing one or more programs (software modules). The one or more programs stored in the computer-readable storage medium may be configured to be executed by one or more processors within an electronic device. At least one program includes instructions to cause the electronic device to perform a method according to the various embodiments of this disclosure as defined by the appended claims and / or disclosed herein.

[0086] These programs (software modules or software) can be stored in non-volatile memory, including random access memory and flash memory, read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), disk storage devices, optical disc-ROM (CD-ROM), digital versatile disc (DVD), or other types of optical storage devices or magnetic tape cassettes. Alternatively, any combination of some or all of them can form the memory in which the programs are stored. Furthermore, an electronic device may include multiple such memories.

[0087] Furthermore, the program can be stored in an attachable storage device that can access the electronic device via a communication network such as the Internet, intranet, local area network (LAN), wide LAN (WLAN), and storage area network (SAN), or a combination thereof. Such a storage device can access the electronic device via an external port. Additionally, a separate storage device on a communication network can access portable electronic devices.

[0088] In the detailed embodiments described above, elements included in this disclosure are represented in a singular or plural form according to the presented embodiments. However, for ease of description, the singular or plural form is suitably chosen for the presented situation, and this disclosure is not limited to elements expressed in a singular or plural form. Thus, an element represented in a plural form may also include a single element, or an element represented in a singular form may include multiple elements.

[0089] Although specific embodiments have been described in detail in this disclosure, it will be apparent that various modifications and changes can be made thereto without departing from the scope of this disclosure. Therefore, the scope of this disclosure should not be limited to the embodiments set forth herein, but should be defined by the appended claims and their equivalents.

Claims

1. A method performed by a terminal in a wireless communication system, the method comprising: Receive control messages from the base station that include configured authorization (CG) configuration information; Based on CG configuration information, the information configured to deactivate retransmission monitoring is identified; Information about uplink transmissions is received via the Physical Downlink Control Channel (PDCCH), and this information is associated with a Scheduled Radio Network Temporary Identifier (CS-RNTI) configured with a New Data Indicator (NDI) set to 0. and Based on the information received via PDCCH, a Discontinuous Receive (DRX)-Hybrid Automatic Repeat Request (HARQ)-Round Trip Time (RTT) timer is driven after the first uplink data transmission.

2. The method according to claim 1, further comprising: Based on control messages, identify whether a bundled transport for configuring multiple CG transports is configured; and When a bundled transmission for configuring the multiple CG transmissions is configured, the DRX-HARQ-RTT timer is driven in the first symbol after the last transmission of the bundled transmission is completed.

3. The method according to claim 2, further comprising: If information about the driving time of the DRX-HARQ-RTT timer in a bundled transmission is not configured in the control message, the DRX-HARQ-RTT timer is driven in the first symbol after the first transmission of the bundled transmission is completed.

4. The method according to claim 1, wherein, The timer driver includes: Even when the deactivation information indicating retransmission monitoring is configured, the DRX-HARQ-RTT timer is driven after the first uplink data transmission.

5. The method according to claim 1, further comprising: If the deactivation information for retransmission monitoring is not configured, the DRX-HARQ-RTT timer corresponding to the HARQ procedure is driven.

6. The method according to claim 1, wherein, When the deactivation information for retransmission monitoring is configured, the DRX-HARQ-RTT timer is not driven for the HARQ process corresponding to the uplink data using the CG configured with the CG configuration information.

7. The method according to claim 6, wherein, The CG timer is not driven if the DRX-HARQ-RTT timer is not driven.

8. The method according to claim 1, wherein, After the first uplink data transmission, the DRX-HARQ-RTT timer is not driven for the uplink transmission of CG.

9. A terminal in a wireless communication system, the terminal comprising: transceiver; and The controller is configured to perform control to: The transceiver receives control messages from the base station, including configured authorization (CG) configuration information. Based on CG configuration information, the information configured to deactivate retransmission monitoring is identified; Information about uplink transmissions is received via the Physical Downlink Control Channel (PDCCH), and this information is associated with a Scheduled Radio Network Temporary Identifier (CS-RNTI) configured with a New Data Indicator (NDI) set to 0. and Based on the information received via PDCCH, a Discontinuous Receive (DRX)-Hybrid Automatic Repeat Request (HARQ)-Round Trip Time (RTT) timer is driven after the first uplink data transmission.

10. The terminal according to claim 9, wherein, The controller is configured to perform control to: Based on control messages, identify whether bundled transports for configuring multiple CG transports are configured; and When a bundled transmission for configuring the multiple CG transmissions is configured, the DRX-HARQ-RTT timer is driven in the first symbol after the last transmission of the bundled transmission is completed.

11. The terminal according to claim 10, wherein, The controller is configured to perform control to drive the DRX-HARQ-RTT timer in the first symbol after the completion of the first transmission of the bundled transmission, provided that information about the driving time point of the DRX-HARQ-RTT timer in the bundled transmission is not configured in the control message.

12. The terminal according to claim 9, wherein, Even when the deactivation information for retransmission monitoring is configured, the DRX-HARQ-RTT timer is driven after the first uplink data transmission, and Specifically, after the first uplink data transmission, the DRX-HARQ-RTT timer is not driven for the uplink transmission of CG.

13. The terminal according to claim 9, wherein, The controller is configured to perform control to drive the DRX-HARQ-RTT timer corresponding to the HARQ procedure when the deactivation information indicating retransmission monitoring is not configured.

14. The terminal according to claim 9, wherein, When the deactivation information for retransmission monitoring is configured, the DRX-HARQ-RTT timer is not driven for the HARQ process corresponding to the uplink data using the CG configured with the CG configuration information.

15. The terminal according to claim 14, wherein, The CG timer is not driven if the DRX-HARQ-RTT timer is not driven.

Images