Abstract:
The present specification provides a method for receiving data through interference cancellation. The method can comprise the steps of: receiving a transmission signal transmitted by a DMRS-based transmission method; detecting, from the transmission signal, a DMRS-based transmission parameter for an interference cell having caused interference in the transmission signal; estimating an interference channel for the interference cell on the basis of the detected DMRS-based transmission parameter; generating an interference signal for the interference cell on the basis of the estimated interference channel; and cancelling the generated interference signal from the transmission signal so as to restore data transmitted by a serving cell.
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:
A disclosure of the present specification provides a method for receiving a sidelink synchronisation signal (SLSS) for proximity service (ProSe). The method may comprise the steps of: receiving an SLSS from a neighbouring ProSe UE; and measuring a reference signal received power (RSRP) of the SLSS during a pre-determined measurement period. The measurement step can be executed assuming that the SLSS transmission from the neighbouring ProSe UE during the measurement period is not abandoned more than once. The measurement period can be extended if the SLSS transmission from the neighbouring ProSe UE is abandoned more than once.
Abstract:
One embodiment of the present specification provides a method for resource allocation by a serving cell base station, for supporting interference removal. The resource allocation method may comprise the steps of: determining whether or not UE has an interference removal function; and if the UE has the interference removal function, allocating resource blocks (RB) to the UE through a negotiation with an interfering cell with respect to the allocation of the resource blocks (RB). Herein the resource blocks (RB) of the interfering cell, which are co-located with the resource blocks (RB) according to the negotiation, may be allocated to another UE by the interfering cell without being divided.
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:
The present disclosure provides a method for using a terminal to detect a small-scale cell at the edge of coverage of the small-scale cell in a wireless communication system in which a macrocell and the small-scale cell coexist. The present invention may include: a step of measuring a macrocell; a step of comparing a value related to the reference signal received quality (RSRQ) acquired according to the macrocell measurement with at least one critical value; a step of determining whether or not to carry out at least one interference removal function for receiving a signal from a small-scale cell in accordance with the determined results; and a step of detecting the signal from the small-scale cell when the interference removal function is actuated.
Abstract:
Disclosed in the present invention are a method for estimating an almost blank subframe (ABS) zone in a wireless access system in which a macro cell and a pico cell coexist, and an apparatus for same. More specifically, the present invention comprises the steps of measuring reference signal received power (RSRP) by using a cell-specific reference signal which is inserted into a subframe of the macro cell, and determining whether the format of the subframe is a multicast broadcast single frequency network (MBSFN) ABS by comparing an RSRP measurement value from a zeroth orthogonal frequency division multiplexing (OFDM) symbol of the subframe, and an RSRP measurement value from a symbol that is not the zeroth OFDM symbol.
Abstract:
The present invention discloses a method and device for controlling uplink transmit power of a terminal in a wireless access system that supports carrier aggregation/multiple cells. In particular, the method may include receiving a first TA value and a second TA value for a first timing advance group (TAG) including one or more component carriers and a second TAG including one or more component carriers, adjusting uplink transmission timing of the first TAG and the second TAG by using the first TA value and the second TA value, resetting a transient period between a first group of component carriers and a second group of component carriers exceeds a power control requirement, and controlling uplink transmit power according to the reset transient period.
Abstract:
There is provided a method for determining uplink transmission power. The method may performed by a user equipment (UE) and comprise: receiving, by the UE, a value of additional maximum power reduction (A-MPR) from a base station (BS), if the UE is configured to use for uplink transmission a frequency range of 1980 MHz through 2010 MHz or 1920 MHz through 2010 MHz and if another UE which is located in an adjacent BS and is to be protected uses for an uplink transmission a frequency range of 2010 MHz through 2025 MHz; and determining an uplink transmission power by applying the value of A-MPR.
Abstract:
A method of providing information for cell measurements. A first cell configures a subframe for performing a first measurement with respect to a first cell. A first position performing the first measurement is different from a second position performing a second measurement with respect to a second cell. The method includes transmitting, from the first cell to a user equipment (UE), first pattern information indicating the first position and second pattern information indicating the second position. A first subframe corresponding to the first pattern information is included in non-Almost Blank Subframe (ABS) subframes of the first cell, and a second subframe corresponding to the second pattern information is included in ABS subframes of the first cell. The ABS subframes of the first cell are configured as a first subframe at each of 8 subframes of the first cell.