Abstract:
Disclosed are a method and an apparatus for providing low-latency services in a communication system. A downlink communication method may comprise receiving downlink control information (DCI) including resource allocation information from a base station through a control channel of a subframe #n; receiving downlink data from the base station through a data channel of a subframe #n+k indicated by the resource allocation information included in the DCI; and transmitting a first hybrid automatic repeat request (HARQ) response for the downlink data to the base station through a control channel of a subframe #n+k+l. Thus, the performance of the communication system can be improved.
Abstract:
An operating method of a slave node that communicates with a master node in an in-band full duplex (IFD) system may comprise receiving a beacon signal from the master node during a training sequence period; transmitting a first self-interference (SI) training sequence including a first radio frequency (RF)/analog SI training sequence, a first automatic gain control (AGC) sequence, and a first digital SI training sequence to the master node during the training sequence period after the beacon signal is received; calculating a filter factor for canceling an analog SI signal input to the slave node on the basis of the first RF/analog SI training sequence; and canceling the analog SI signal from the first AGC sequence on the basis of the filter factor.
Abstract:
An operation method of a terminal includes receiving configuration information from a serving base station; measuring channel states of the serving base station and a target base station; when a difference between received signal strengths of the serving base station and the target base station is not less than a handover preparation offset, determining that a handover preparation event has occurred and transmitting a measurement report message to the serving base station; and when the difference is equal to or greater than a handover execution offset, determining that a handover execution event has occurred and transmitting a handover indication message informing of execution of a handover to the target base station. The channel state is normal state, abnormal state, or RLF state, and the configuration information indicates a different handover preparation offset and a different handover execution event according to the channel state.
Abstract:
A cooperation MIMO transmitting or receiving method is disclosed. A master terminal calculates a first signal to interference plus noise ratio (SINR), which is SINR between the mater terminal and a base station or between the master terminal and another cluster, and the master terminal calculates a second SINR, which is SINR between a slave terminal and the master terminal. Here, the master terminal forms a cluster with the slave terminal when the second SINR is higher than the first SINR.
Abstract:
Disclosed herein are a cooperation MIMO transmitting/receiving method and a terminal for supporting the same. A master terminal forms a slave terminal and a cluster performing cooperation communication. The master terminal transmits some data of data to be transmitted to a slave terminal and shares the some data with the slave terminal, and the slave terminal transparently transmits data transmitted from the master terminal to a target node.
Abstract:
Disclosed herein is a method for resource access, including: selecting at least one data sub-frame among a plurality of sub-frames included in a frame; transmitting the data from the data sub-frame; and transmitting a blocking signal from a previous sub-frame of the data sub-frame.
Abstract:
A broadcasting transmitting apparatus of providing a multi-picture may include a multi-picture generator configured to divide an acquired video into a first video and a second video; a first video encoder configured to encode the first video; a second video encoder configured to encode the second video; a multiplexer configured to multiplex the first and second videos to a single stream video; and a transmitter configured to modulate the multiplexed single stream video to transmit the modulated single stream video to a receiving apparatus through a broadcasting network.
Abstract:
A reception terminal receives information indicating whether a service flow requires in-order delivery and a maximum time during which data not yet received is to wait in a case in which in-order delivery is required, from a transmission terminal, restores service data units (SDUs) from protocol data units (PDUs) received from the transmission terminal with respect to the corresponding service flow, and transmits the restored SDUs to a higher layer according to sequence numbers of the received PDUs in order.
Abstract:
An operation method of an in-band full duplex (IFD) transceiving apparatus including a receiving end, a transmitting end, a digital self-interference cancellation (DSIC) processing unit, and a digital SI cancellation unit may comprise generating, by the DSIC processing unit, signal shaping coefficients for wave shaping of a signal of the transmitting end; generating, by the DSIC processing unit, channel estimation coefficients for cancellation of a self-interference signal in a reception signal of the receiving end; forming, by the DSIC processing unit, a transmission signal based on the signal shaping coefficients; and generating, by the DSIC processing unit, a control signal for cancellation of the self-interference signal in the reception signal based on the channel estimation coefficients.
Abstract:
An operation method of a terminal in a wireless communication system includes: transmitting uplink (UL) traffic information indicating a size of a UL data signal to a base station; receiving a jamming message generated based on the UL traffic information from the base station; generating an uplink (UL) transmission signal including the UL data signal and a UL jamming signal based on the jamming message; and transmitting the UL transmission signal to the base station. Also, the jamming message indicates a pattern of the UL jamming signal, the UL transmission signal is transmitted in a same frequency band as a frequency band in which a downlink (DL) transmission signal of the base station is received, and the UL jamming signal is transmitted in remaining resources excluding resources occupied by the UL data signal in the frequency band.