Abstract:
The present invention relates to a method by which a terminal measures interference in a wireless communication system in which a macro cell and a small-scale cell coexist. The interference measurement method can include a step in which a terminal receives setting information for interference measurement (IM). Here, the setting information for the IM includes at least two settings, each setting is defined in a resource element (RE) unit, the first of the two settings is for measuring interference from other neighboring cells besides the macro and small-scale cells, and the second is for measuring interference from the macro cell. The interference measurement method may further include: measuring interference by using setting information for the IM; and feeding back channel quality obtained by using the measured interference value.
Abstract:
One disclosure of the present specification provides a method for performing a measurement. The method may comprise: receiving, from a serving cell, a first measurement subframe pattern for the serving cell and assistance information on a cell-specific reference signal (CRS) of a first neighboring cell and a second neighboring cell; and receiving, from the serving cell, a second measurement subframe pattern for the first and second neighboring cells. Here, both the serving cell and the first neighboring cell are aggressor cells against a victim cell which is the second neighboring cell, and the received second measurement subframe pattern may be set based on an almost blank subframe (ABS) pattern, when a CRS of the serving cell collides with the CRS of the second neighboring cell but the CRS of the first neighboring cell does not collide with the CRS of the second neighboring cell.
Abstract:
The present disclosure provides a method of performing up-link transmission at a reduced power. According to the method, system information may be received from a base station. The system information may include one or more of first information on an operating band and second information on an up-link bandwidth. Also, according to the method, a network signal for an additional power reduction may be received from the base station. Also, according to the method, when an operating band indicated by the first information is within a range of 777 MHz to 787 MHz and a bandwidth indicated by the second information is 5 MHz, namely, 777 MHz to 782 MHz, an additionally required power reduction may be determined in order to decrease interference to the band of an adjacently located public safety network according to the network signal, and up-link transmission at the reduced power may be performed.
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:
One disclosure of the present specification provides a method by which a UE performs sidelink communication. The method may comprise the steps of: performing sidelink communication on the basis of a first RAT; switching a RAT for the sidelink communication from the first RAT to a second RAT; performing the sidelink communication on the basis of the second RAT; and communicating with a base station on the basis of NR.
Abstract:
There is provided a UE for configured to operate in a wireless system. The UE comprises: at least one transceiver; at least one processor; and at least one computer memory operably connectable to the at least one processor and storing instructions that, based on being executed by the at least one processor, perform operations comprising: determining SL transmit power for SL signal based on MPR value; determining UL transmit power for UL signal based on the MPR value; transmitting the SL signal based on the SL transmit power; and transmitting the UL signal based on the UL transmit power.
Abstract:
There is provided a UE for configured to operate in a wireless system. The UE comprises: at least one transceiver; at least one processor; and at least one computer memory operably connectable to the at least one processor and storing instructions that, based on being executed by the at least one processor, perform operations comprising: transmitting first signal which is one of UL signal or SL signal; performing switching between UL transmission and SL transmission; and transmitting second signal, which is different from the first signal, which is one of the UL signal or SL signal.
Abstract:
One disclosure of the present specification provides an operation method in a vehicle-to-everything (V2X) device mounted on a vehicle. The method comprises the steps of: receiving a capability enquiry message from a base station; and transmitting capability information to the base station. The capability information includes information on whether a wireless link with the base station and a sidelink with a neighboring V2X device are supported through the same antenna. The method comprises a step of receiving, from the base station, information about a default beam set on the basis of the capability information.
Abstract:
One general aspect of the present disclosure includes a device configured to operate in a wireless system. The device including: a transceiver configured with a plurality of E-UTRA operating bands; and a processor operably connectable to the transceiver. The processer may be configured to: control the transceiver to transmit an uplink signal via at least two bands among the plurality of E-UTRA operating bands; and control the transceiver to receive a downlink signal via three bands among the plurality of E-UTRA operating bands, wherein pre-configured MSD value is applied to a reference sensitivity for receiving the downlink signal based on the E-UTRA operating band 2.
Abstract:
A disclosure of this specification provides a device configured to operate in a wireless system, the device comprising: a transceiver configured with an Evolved Universal Terrestrial Radio Access (E-UTRA)-New Radio (NR) Dual Connectivity (EN-DC), wherein the EN-DC is configured to use three bands, a processor operably connectable to the transceiver, wherein the processer is configured to: control the transceiver to receive a downlink signal, control the transceiver to transmit an uplink signal via at least two bands among the three bands, wherein a value of Maximum Sensitivity Degradation (MSD) is applied to a reference sensitivity for receiving the downlink signal, wherein the value of the MSD is 4.5 dB for band n5, based on the three bands being bands 13, n5 and n77.