Abstract:
A disclosure of the present specification provides a transmission and reception method of a machine type communication (MTC) device. The transmission and reception method of the MTC device may comprise the steps of: receiving first scheduling information indicating that a bundle of first data can be transmitted or received in multiple first sub-frames; and receiving second scheduling information indicating that a bundle of second data can be transmitted or received in multiple second sub-frames. Herein, when a physical resource block (PRB) of some sub-frames of the multiple first sub-frames overlaps a PRB of some sub-frames of the multiple second sub-frames, only one of the bundle of the first data and the bundle of the second data can be transmitted and received in the overlapping sub-frame.
Abstract:
According to an embodiment of the present specification, a method for transmitting uplink data in a machine type communication (MTC) device is provided. The method may comprise the steps of: initially transmitting repetitive bundles of physical uplink shared channel (PUSCH) data including identical uplink data in a plurality of uplink subframes to a base station; receiving a hybrid automatic repeat request (HARQ) response signal with respect to the repetitive bundles of PUSCH; if the HARQ response signal is a negative-acknowledgement (NACK), determining the number of repetitions of the PUSCH including identical uplink data; and re-transmitting the PUSCH bundles repeatedly for the determined number of times on the plurality of uplink subframes to the base station.
Abstract:
The present invention relates to a wireless communication system. Specifically, the present invention relates to a method and an apparatus for a terminal to monitor a radio link in a wireless communication system, the method comprising: a step for receiving a radio frame including a plurality of subframes; a step for generating measurement results on the basis of the signal in the radio frame; and a step for evaluating the state of the radio link of the radio frame by comparing the measurement results with one or more threshold values, wherein if a repetition is applied to a physical downlink control channel (PDCCH) transmission, the measurement results are generated on the basis of the combined signal in L (L>1) subframes, and if the repetition is not applied to the PDCCH transmission, the measurement results are generated on the basis of the signal in a single subframe.
Abstract:
The present specification discloses a transmission/reception method for a machine type communication (MTC) apparatus. The transmission/reception method for the MTC apparatus may comprise the steps of: receiving, by the MTC apparatus, setting information about a multicast-broadcast single-frequency network (MBSFN) subframe from a base station; receiving, by the MTC apparatus, downlink data for the MTC apparatus, on a data region of the MBSFN subframe; and receiving, by the MTC apparatus, a cell-specific reference signal (CRS) only on a portion of the resource blocks (RBs) in the whole system bandwidth of the data region in the MBSFN subframe. Here, the CRS received only on the portion of RBs may be transmitted while electric power is increased by means of the base station.
Abstract:
The present invention provides a method and a device for transmitting or receiving channel state information (CSI). According to the present invention, when a user equipment can be set with one or more CSI processes per serving cell, a CSI request field included in downlink control information for a specific serving cell indicates at least whether a non-periodic CSI report triggered by the CSI request field is triggered for a set of CSI process(es) set by a higher layer from among the CSI process(es) for the one serving cell.
Abstract:
The present invention is method and apparatus for coverage enhancement. An embodiment of the present invention includes detecting a cell with primary synchronization signal (PSS) and/or secondary synchronization signal (SSS), detecting reference signal based on the detected synchronization signal, detecting broadcasting channel based on the detected reference signal and decoding master information block on the broadcasting channel, detecting system information block on a downlink data channel, transmitting random access preamble on random access channel based on a system information obtained from the system information block and receiving random access response corresponding to the random access preamble.
Abstract:
A method for receiving a reference signal for positioning in a wireless communication system by a user equipment (UE) is disclosed. The method includes receiving a plurality of reference signal sequences for positioning to which different frequency shift values are applied, calculating a correlation between the plurality of reference signal sequences for positioning and transmitted reference signal sequences for positioning corresponding to the plurality of reference signal sequences in a time domain, and determining a time domain index having a highest value from the correlation as a reference time point for positioning, wherein the frequency shift value is determined according to the sum of multiplication of an index of each reference signal sequence and a frequency shift interval, and frequency offset.
Abstract:
Provided are a communication method of a terminal in a wireless communication system and the terminal using the method. The method comprises: receiving a cell state signal from a small cell; and communicating with the small cell on the basis of the cell state signal, wherein the cell state signal includes information indicating the switching of the small cell to an off-state.
Abstract:
Disclosed are a method and device for transmitting and receiving uplink in a wireless communication system. The method performed in a wireless communication system by a terminal according to an embodiment disclosed herein may comprise the steps of: receiving information indicating that demodulation reference signal (DMRS) bundling for a physical uplink shared channel is enabled; performing, in a specific slot, transmission timing adjustment for uplink transmission; and transmitting at least one PUSCH in a time domain window related to the DMRS bundling on the basis of at least one symbol being excluded from a subsequent slot adjacent to the specific slot.
Abstract:
An apparatus and method for operation of an apparatus in a wireless communication system are provided. The apparatus may be a terminal, a chipset, or a base station. A terminal receives, from a base station, a configuration of a frequency band in which a reference signal is to be measured, and measures the reference signal in the corresponding frequency band. In this step, a case may occur in which the reference signal cannot be measured in the entire frequency band that has been received as a configuration. In this case, the terminal distinguishes between a case in which the reference signal can be measured in the entire frequency band that has been received as a configuration and a case in which it cannot, and reports independent channel state information to the base station.