Abstract:
One disclosure of the present specification provides a method for identifying a secondary cell on the basis of discovery signals. The method may comprise the step of receiving information on a discovery signal measurement timing configuration (DMTC) and a measurement cycle from a serving cell. The DMTC may include a DMTC periodicity. The measurement cycle may indicate the measurement cycle of an inactivated secondary cell (Scell) by subframe unit. The method may comprise the step of identifying the secondary cell. If DRX is used, the secondary cell is considered an intra-frequency cell, and the secondary cell is a small cell and identified based on discovery signals, the identification of the small cell can be performed in two hours.
Abstract:
One embodiment of the present specification provides a method by which user equipment (UE) transmits an uplink signal according to a spectrum emission mask (SEM). The method comprises a step of transmitting the uplink signal on a plurality of carriers when an RF unit of the UE is set to use inter-band carrier aggregation. Here, when the frequency range of a first SEM of a first carrier overlaps the frequency range of a second SEM of a second carrier, any one SEM allowing a higher power spectral density (PSD) can be selected and applied.
Abstract:
One disclosure of the present specification provides a method for performing a proximity service (ProSe). The method may be performed by a user equipment (UE) and comprise: performing, by the UE configured with a primary cell (Pcell) and a secondary cell (Scell), a switching between the ProSe and a cellular service with at least one of the Pcell and the Scell; transceiving a ProSe discovery signal with at least one or more adjacent UEs after performing a switching from the cellular service to the ProSe service; and transceiving a signal with the at least one of the Pcell and the Scell after performing a switching from the ProSe service to the cellular service. Here, the UE is allowed an interruption of up to one subframe that is N subframes before and after an uplink (UL) subframe configured for transmitting the ProSe discovery signal.
Abstract:
One embodiment of the present specification discloses a method for performing power control for an uplink transmission in user equipment. The method comprises the steps of: receiving a signal including information about a maximum modulation order among modulation schemes of a low order that can be used for an uplink transmission; comparing the modulation order set to be used for an uplink transmission with the modulation order included in the signal; and setting a transmission radio frequency (RF) unit into a first power mode if the modulation order set to be used for an uplink transmission is lower than or equal to the modulation order included in the signal.
Abstract:
One disclosure of the present specification provides a method for performing measurement. The method may comprise the steps of: receiving measurement setting information and wireless resource setting information from a serving cell; and receiving setting information for a measurement interval if a frequency band of the serving cell and a frequency band of a neighboring cell belong to different inter-bands, wherein setting information for the measurement interval may indicate a setting in which the number of downlink (DL) subframes is 1 for 5 ms if the serving cell operates with a TDD UL-DL setting of 0 or 6. The method may comprise a step of performing measurement for reference signals from the serving cell and the neighboring cell during the measurement interval.
Abstract:
An embodiment of the present invention provides a method for receiving a signal with an interference eliminated. The method for receiving a signal with an interference eliminated includes the steps of: receiving the information of PBCH (Physical Broadcast Channel) of a neighbor interference cell from a serving cell; receiving the information of the downlink synchronization with the neighbor interference cell from the serving cell; identifying the channel of the serving cell suffering an interference by PBCH of the neighbor interference cell based on the information of the downlink synchronization; and eliminating the interference for receiving the identified channel based on the information of PBCH of the neighbor interference cell.
Abstract:
One embodiment of the present specification provides a reception method for a terminal supporting cooperative multi-point (CoMP). The reception method for the terminal may comprise the steps of: receiving a signal which indicates that a channel state indicator-reference signal (CSI-RS) port and a cell-specific reference signal (CRS) port are almost quasi co-located; and determining a frequency offset between a CRS and a demodulation-reference signal (DM-RS), which is quasi co-located with the CRS, on the basis of the signal which indicates that the CSI-RS port and the CRS port are almost quasi co-located. Herein the frequency offset between the CRS and the DM-RS may be within 50 Hz.
Abstract:
A disclosure of the present specification provides a method for performing communication by a user equipment (UE). The method comprises the steps of: receiving EPHEMERIS information on an NTN satellite and timer information on the EPHEMERIS information from a base station serving as a non-terrestrial network (NTN) gateway; operating a timer on the basis of the timer information; performing communication via the NTN satellite on the basis of the EPHEMERIS information; and on the basis of expiration of the timer, transmitting a request to update the EPHEMERIS information to the base station.
Abstract:
The present disclosure provides a UE. The UE includes at least one transceiver; at least one processor; and at least one memory that stores instructions and is operatively electrically connectable with the at least one processor. Operations performed based on the command being executed by the at least one processor may include: transmitting an uplink signal through the one or more transceivers; and receiving a downlink signal through the one or more transceivers, wherein a reference sensitivity set for the one or more transceivers for downlink reception is relaxed by the MSD.
Abstract:
A disclosure of this specification provides A device configured to operate in a wireless system, the device comprising: a transceiver configured with a V2X (Vehicle to Everything), a processor operably connectable to the transceiver, wherein the processer is configured to: control the transceiver to transmit an uplink signal via operation band 20, control the transceiver to receive a sidelink signal vis operation band n38, wherein a value of Maximum Sensitivity Degradation (MSD) is applied to a reference sensitivity for receiving the sidelink signal, wherein based on bandwidth for receiving the sidelink signal being 10 MHz, the value of the MSD is 10.7 dB, wherein based on bandwidth for receiving the sidelink signal being 20 MHz, the value of the MSD is 7.7 dB, wherein based on bandwidth for receiving the sidelink signal being 30 MHz, the value of the MSD is 5.8 dB, wherein based on bandwidth for receiving the sidelink signal being 40 MHz, the value of the MSD is 4.7 dB.