Abstract:
Provided are a connection configuring method between a base station and a node, and a terminal, a scheduling method for a radio resource in a unlicensed band, and a protocol stack regarding data transfer through the radio resource in the unlicensed band, for a terminal to receive a service by using a radio resource in a licensed band and the radio resource in the unlicensed band.
Abstract:
Provided is a method that may allocate uplink radio resources to a terminal, and may receive data from the terminal using the radio resources. The uplink radio resources may be allocated as contention-based radio resources in a radio network, such as a cellular system, a radio local access network (LAN), and the like, and thus, a plurality of terminals may effectively transmit data using minimum radio resources.
Abstract:
Provided are methods of managing a terminal in a heterogeneous network (HetNet) environment. Between the methods, a method of managing a terminal performed in a base station includes determining whether or not a measurement change request event has occurred, and when a measurement change request event has occurred, transmitting a control message for instructing a change of a measurement operation to the terminal. Accordingly, it is possible to improve a measurement operation and discontinuous reception (DRX) operation control procedure necessary for connection control between one or more base stations and a terminal in a HetNet environment, and thereby performance of a system can be improved.
Abstract:
A method for operating a terminal for radio link management may include: from a first cell, receiving a connection reconfiguration message, for configuring a carrier aggregation function, including configuration information for a second cell; performing a beam and radio link monitoring for the first and second cells; when a beam failure for the second cell is detected, performing at least one from among a procedure of reporting the beam failure to the first and second cells, a procedure of requesting the recovery of the beam failure from the first and second cells, and a beam recovery procedure for the second cell; receiving, from the first or second cell, a control message in response to the report of the beam failure, or in response to the beam recovery procedure; and upon receiving the control message, determining whether the beam recovery procedure is successful or not.
Abstract:
A method of a network node may comprise: transmitting first control information to one or more terminals including a network energy saving (NES) terminal, the first control information including information on whether the NES terminal supporting an NES operation is allowed to perform an access procedure to the network node; and in response to that the NES terminal is allowed to perform an access procedure to the network node, performing the access procedure with the NES terminal.
Abstract:
Disclosed are a method and an apparatus for transmitting or receiving uplink feedback information in a communication system. An operation method of a terminal may comprise receiving downlink control information (DCI) from a base station, the DCI including resource allocation information of a physical downlink shared channel (PDSCH); receiving data #n from the base station through the PDSCH indicated by the DCI; generating a hybrid automatic repeat request (HARQ) codebook including an HARQ response bit #n for the data #n and an HARQ response bit #n-1 for data #n-1 received from the base station before the data #n; and transmitting the HARQ codebook to the base station. Therefore, the performance of the communication system can be improved.
Abstract:
Provided is a method for controlling the access of a terminal in a communication system. An operation method of a terminal comprises the steps of: receiving, from a base station, configuration information for a two-step random access procedure; transmitting, to the base station, RA MSG-A including an RA preamble and an RA payload, on the basis of the configuration information; and receiving, from the base station, RA MSG-B, which is a response to the RA MSG-A. Therefore, communication system performance can be improved.
Abstract:
A method for receiving a DL SDT, performed by a terminal, may include: receiving DL SDT-related configuration information from a base station; receiving information indicating a DL SDT reception operation from the base station; transmitting a response to the information indicating the DL SDT reception operation to the base station; and receiving a DL SDT packet from the base station.
Abstract:
An instant message transmission method performed by a terminal may comprise the steps of: receiving, from a base station, configuration information related to transmission of an instant message; if an instant message has been generated, determining whether or not the transmission of the instant message is allowed; and if the transmission of the instant message is allowed, transmitting the instant message by using a random access (RA) procedure or one or more pre-allocated uplink resources (PURs).
Abstract:
A method of a terminal may comprise: receiving, from a base station, DCI including a first field indicating HARQ-ACK retransmission and a second field indicating a priority; identifying first HARQ-ACK information having a priority identical to the priority indicated by the second field; and transmitting, to the base station, a first HARQ-ACK codebook including the first HARQ-ACK information based on the indication of the first field.