Abstract: A determination is made whether each predetermined bit of a plurality of predetermined bits of a Semi-Persistent Scheduling (SPS) scheduling assignment for a user equipment (UE) has a respective predetermined value required to validate the SPS scheduling assignment. In circumstances where each predetermined bit of the plurality of predetermined bits of a Semi-Persistent Scheduling (SPS) scheduling assignment is determined to have a respective predetermined value required to validate the SPS scheduling assignment, an action corresponding to SPS is performed. In circumstances where at least one predetermined bit of the plurality of predetermined bits of an SPS scheduling assignment is determined to fail to have a respective predetermined value required to validate the SPS scheduling assignment, the SPS scheduling assignment is discarded and the action is not performed.

Abstract: To solve the above-mentioned problem, the method for transmitting and receiving a signal by user equipment (UE) through one or more cells, according to one embodiment of the present specification, comprises the steps of: receiving, from a base station, a first message indicating whether one or more cells usable by the UE are enabled; determining which cells to enable or disable on the basis of the first message; and enabling or disabling the selected cells. According to the embodiment of the present specification, by aggregating carriers amongst different base stations, a possibility for the UE to transmit and receive high-speed data through carrier aggregation can increase.

Abstract: A bearer reconfiguration method performed by a User Equipment (UE) in a wireless communication system supporting a multi-bearer is provided. The bearer reconfiguration method includes, if the UE performs a bearer reconfiguration from a single bearer to the multi-bearer, reordering Packet Data Convergence Protocol (PDCP) Protocol Data Units (PDUs) received through the multi-bearer, using a timer after a completion of the bearer reconfiguration, and processing the reordered PDCP PDUs into at least one PDCP Service Data Unit (SDU). The method may also include, if the UE performs bearer reconfiguration from the multi-bearer to the single bearer, reordering PDCP PDUs received through the multi-bearer, using a timer until a predetermined condition is satisfied, and processing the reordered PDCP PDUs into at least one PDCP SDU.

Abstract: A method for operating a mobile device in a mobile communication network. The method comprises transmitting a mobile device component identifier to a network node within the mobile communication network. The mobile device component identifier identifies at least one hardware or software component of the mobile device. The mobile device component identifier is indicative of capability information specifying at least one capability of the mobile device for communication with the mobile communication network. A corresponding method for operating a network node is also provided.

Abstract: A method and an apparatus for efficiently reporting user equipment (UE) are provided. A method of transmitting Power Headroom Report (PHR) of UE in a mobile communication system, includes configuring an evolved PHR including an indicator with respect of a variation factor of maximum transmission power of the UE, and transmitting the evolved PHR to an eNB. An eNB may know maximum transmission power of an UE and a variation factor thereof to enable efficient scheduling.

Abstract: A communication technique of fusing a fifth generation (5G) communication system for supporting higher data transmission rate beyond a fourth generation (4G) system with an Internet of things (IoT) technology and a system thereof are provided. The communication technique may be used for an intelligent service (for example, a smart home, a smart building, a smart city, a smart car or a connected car, health care, digital education, a retail business, a security and safety related service, or the like) based on the 5G communication technology and the IoT related technology. A method for defining media access control (MAC) sub-header structures suitable for a next generation mobile communication system and applying the MAC sub-header structures to provide a high data transmission rate and a low latency in the next generation mobile communication system is provided.

Abstract: The present disclosure relates to a communication technique for converging a 5G communication system, which is provided to support a higher data transmission rate beyond a 4G system with an IoT technology, and a system therefor. The present disclosure may be applied to intelligent services (e.g., smart home, smart building, smart city, smart car or connected car, health care, digital education, retail business, security and safety related service, or the like) based on the 5G communication technology and the IoT related technology. The present disclosure discloses a method and an apparatus for supporting a multiple access in next generation mobile communication systems.

Abstract: The present specification relates to a communication method and a communication device, and a random access method of a user equipment (UE), according to one embodiment of the present specification, comprises the steps of: sensing a random access trigger in a connected state; determining the type of the random access trigger when the random access trigger is sensed; and performing congestion control if the type of the random access trigger is a preset type.

Abstract: Methods and apparatuses are provided for establishing time alignment by a terminal in a wireless communication system. Information for identifying a preamble is received from the base station on the downlink control channel. The preamble is transmitted to the base station based on the information for identifying the preamble. A message including information for a channel quality indicator (CQI) request is received from the base station. A CQI is transmitted to the base station based on the information for the CQI request response message. A CQI is transmitted to the base station based on the information for the CQI request.

Abstract: The present application discloses a method and eNB equipment for supporting seamless handover. The method comprises the following steps of: receiving, by a target eNB, random access information or an RRC connection reconfiguration completion message from a UE; transmitting, by the target eNB, a data transmission stopping indication message to a source eNB; and, stopping, by the source eNB, transmitting downlink data to the UE, and/or stopping, by the source eNB, receiving uplink data from the UE. The present invention further provides several other methods and eNB equipments for supporting seamless handover. By the methods for supporting seamless handover provided by the present invention, the delay of data transmission and the unnecessary data transmission or unnecessary data monitoring of a source eNB can be avoided, the waste of resources and the power consumption can be reduced, and the missing and duplication transmission of data can be avoided.

Abstract: An MBMS service reception method and an apparatus are provided for facilitating reception of Multimedia Broadcast/Multicast Service (MBMS) provided in the Long Term Evolution (LTE) system. The method for receiving MBMS in a radio communication system includes receiving User Service Description (USD) information including time information of the MBMS in a connected mode, determining whether a session of the MBMS has started based on the time information, and receiving, when the MBMS session has started, MBMS data of the MBMS session. The MBMS service reception method and apparatus of the present invention facilitates receiving the MBMS service.

Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A method of operating a base station in a wireless communications network, the base station being arranged to communicate with a mobile terminal to provide on-demand System Information, SI.

Abstract: Disclosed in a method of discontinuous data reception in a mobile communication system. The method includes: receiving downlink data and decoding the received downlink data by the UE; when the decoding is not successful, starting a timer for receiving retransmitted data; when the downlink data has been received by a configured downlink assignment, operating a downlink carrier, through which the downlink data has been received, in an active time; and when the downlink data has been received by a dynamic transmission resource and the downlink carrier, through which the downlink data has been received, is different from a downlink carrier, through which a scheduling command for the downlink data has been received, operating the downlink carrier, through which the scheduling command for the downlink data has been received, and the downlink carrier, through which the downlink data has been received, in an active time.

Abstract: The present specification relates to a communication method and a communication device, and a random access method of a user equipment (UE), according to one embodiment of the present specification, comprises the steps of: sensing a random access trigger in a connected state; determining the type of the random access trigger when the random access trigger is sensed; and performing congestion control if the type of the random access trigger is a preset type.

Abstract: A method of a user equipment (UE) for a beam management in a wireless communication system/The method comprises receiving, from a base station (BS), configuration information including information of receive (Rx) beam identifications (IDs) associated with Rx beams, receiving, from the BS, reference signals for determining the Rx beams, wherein the Rx beams include different Rx beam IDs, respectively, measuring, based on the Rx beams, a beam reference signal (BRS) and a channel state information-reference signal (CSI-RS) received from the BS, and performing, based on the configuration information, an Rx beam cycling operation for the Rx beams to receive downlink channels.

Abstract: The present invention relates to a method and a device for cell activation in a carrier aggregation system, and the method for activating a cell of a terminal according to one embodiment of the present invention comprises: a step for receiving an activation message of a first cell; a step for activating the first cell when the message of the first cell is received; an information obtaining step for obtaining uplink activation information of the first cell; and a transmission determination step for determining whether to execute an uplink transmission according to the uplink activation information. According to an embodiment of the present invention, efficient carrier management plan can be provided.

Abstract: A method of operating a mobile terminal in a mobile communications network comprising a core network and a base station, wherein the mobile terminal is capable of transmitting data to and receiving data from the core network via the mobile base station or via a WLAN includes in the event that the WLAN becomes unavailable, reporting the WLAN unavailability to the mobile communications network, and detecting the WLAN becoming available again, and notifying the mobile communications network. A mobile terminal includes a transceiver configured to transmit data to and receive data from the core network via the mobile base station or via a WLAN, a controller configured to in the event that the WLAN becomes unavailable, report the WLAN unavailability to the mobile communications network via the transceiver, and detect the WLAN becoming available again, and notify the mobile communications network.

Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. Disclosed are method and apparatus for a semi-persistent scheduling (SPS) for vehicle to everything (V/2X) in a wireless communication system.

Abstract: A method for operating a mobile device in a mobile communication network. The method comprises transmitting a mobile device component identifier to a network node within the mobile communication network. The mobile device component identifier identifies at least one hardware or software component of the mobile device. The mobile device component identifier is indicative of capability information specifying at least one capability of the mobile device for communication with the mobile communication network. A corresponding method for operating a network node is also provided.

Abstract: An MBMS service reception method and an apparatus are provided for facilitating reception of Multimedia Broadcast/Multicast Service (MBMS) provided in the Long Term Evolution (LTE) system. The method for receiving MBMS in a radio communication system includes receiving User Service Description (USD) information including time information of the MBMS in a connected mode, determining whether a session of the MBMS has started based on the time information, and receiving, when the MBMS session has started, MBMS data of the MBMS session. The MBMS service reception method and apparatus of the present invention facilitates receiving the MBMS service.