Abstract:
A disclosure of the present specification provides a method for measuring an interference from a neighboring device. The method may performed by a device and comprise: measuring, by the device, an interference based on a reference signal from a neighboring device, which is served by a neighboring cell; and transmitting, by the device, a measurement report to a serving cell, the measurement report including a measured value of the interference. One or more steps of measuring the interference and transmitting the measurement report may be performed based on configuration information. The configuration information includes one or more of start information, end information, a timer or a threshold.
Abstract:
There is provided a method for transmitting data by a wireless device configured to support WAN communication and V2X communication, the method comprising scheduling a first data transmission to be performed in an N-th subframe, wherein the first transmission uses the WAN communication; scheduling a second data transmission to be performed in an (N−1)-th subframe, wherein the second transmission uses the V2X communication, wherein the (N−1)-th subframe for the second transmission is offset from the N-th subframe by a DFN (Direct Frame Number) offset; determining which one of the first transmission or the second transmission to be dropped, based on a priority between the WAN and V2X communications, wherein the determining is further based on comparison between a length of a last symbol in the (N−1)-th subframe for the second transmission with a length of the DFN offset.
Abstract:
Provided is a method for performing measurement by a user equipment (UE). The method may include receiving, by the UE, configuration information on a measurement gap. The UE may be configured with a dual connectivity (DC) to an evolved universal terrestrial radio access (E-UTRA) cell and a new radio access technology (NR) cell. The configuration information on the measurement gap may include a measurement gap length (MGL). The MGL may include one of 3 ms, 4 ms and 6 ms. The method may include determining a total number of slots to be interrupted during the MGL, and performing the measurement during the MGL. The total number of slots to be interrupted may be determined based on a subcarrier spacing (SCS) of the NR cell and the MGL
Abstract:
There is provided a method for determining transmission power for uplink signal, the method performed by a user equipment (UE) and comprising: determining a total transmission power for E-UTRA uplink signal and NR uplink signal, when the E-UTRA uplink signal and the NR uplink signal overlap in time, wherein the total transmission power satisfies a condition including on PCMAX_L and PCMAX_H, wherein PCMAX_L is a lower limit for the total transmission power and PCMAX_H is a higher limit for the total transmission power, wherein when the E-UTRA uplink signal is transmitted on a scheduling unit p, when the NR uplink signal is transmitted on a scheduling unit q, the scheduling unit p is taken as a reference for the determination; and transmitting the E-UTRA uplink signal and the NR uplink signal based on the determined total transmission power.
Abstract:
One disclosure of the present specification provides a method for receiving a discovery signal from a license assisted access (LAA) based cell operating in an unlicensed band. The method may be performed by a user equipment (UE) and comprise: receiving a discovery signal measurement timing configuration (DMTC) including information on a periodicity of the DMTC and information on an occasion duration of a discovery signal. Here, if the UE operate in a bandwidth of 10 Mhz, the occasion duration may include a first subframe and a second subframe. The method may comprise: performing a cell detection for the LAA based cell operating in the unlicensed band, on the first subframe of the occasion duration; and performing measurements for the LAA based cell operating in the unlicensed band, on the second subframe of the occasion duration.
Abstract:
A method and user equipment for transmitting an uplink signal according to a spectrum emission mask (SEM) are discussed. The method performed by the user equipment includes if a radio frequency (RF) unit of the user equipment is configured to use inter-band carrier aggregation (CA), transmitting uplink signals on the carriers, wherein if a first SEM of a first carrier is overlapped in some frequency region with a second SEM of a second carrier, one SEM allowing a higher power spectral density (PSD) is selected to be applied.
Abstract:
The present disclosure provides a method of performing a measurement. The method of performing a measurement may include the steps of: continuing a measurement on received signal strength indication (RSSI) for sections corresponding to the multiple of an almost blank subframe (ABS) pattern when a measurement subframe pattern representing a subframe to be measured with respect to a serving cell to which enhanced inter-cell interference coordination (eICIC) is applied is not received; averaging measurement results for the sections corresponding to the multiple of the ABS; and transmitting the average of the measurement results to the serving cell.
Abstract:
A method for limiting a spurious emission, and a user equipment (UE) thereof are discussed. The method according to one embodiment includes configuring a radio frequency (RF) unit of the UE to use a band 1; if the RF unit is configured to use the band 1, controlling the RF unit of the UK to limit a maximum level of spurious emission to −50 dBm for protecting another UE using a band 5; and transmitting an uplink signal through the configured RF unit. The band 1 includes an uplink operating band of 1920-1980 MHz and a downlink operating band of 2110-2170 MHz. The band 5 includes an uplink operating band of 824-849 MHz and a downlink operating band of 869-894 MHz.
Abstract:
According to one embodiment of the present specification, provided is a method for measuring a position in a wireless communication system. The method for measuring a position comprises the steps of: receiving observed time difference of arrival (OTDOA) assistance data from a positioning server; increasing an FFT sampling size when the value of a bandwidth of a positioning reference signal (PRS) included in the OTDOA assistance data is less than a first value; processing a plurality of received PRSs through the increased FFT sampling size; and calculating a reference signal time difference (RSTD) between the plurality of received PRSs.
Abstract:
One embodiment of the present specification provides an interference cancellation receiving method. According to the method, interference estimation support information can be received from a serving cell. The information includes information for a time domain and information for a frequency domain, wherein the information for a time domain can indicate a section of a subframe or a radio frame in which the coherence of an interference signal is maintained, and the information for a frequency domain can indicate a section in which the coherence of the interference signal is maintained. According to the method, an interference signal introduced from a neighboring cell is estimated by using the information for a time domain and the information for a frequency domain of the interference estimation support information, and a signal from the serving cell can be detected by cancelling the estimated interference.