Abstract:
Provided is an uplink reference signal transmitting method for a terminal configured to support a length of a transmission time interval (TTI) in a wireless communication system according to an embodiment of the present invention. The method is performed by a terminal and may comprise the steps of: receiving configuration information associated with an uplink reference signal for a plurality of TTIs from a base station; and transmitting an uplink reference signal in at least one TTI from among the plurality of TTIs, using the received configuration information, wherein the configuration information may be included in signaling that schedules at least one TTI from among the plurality of TTIs.
Abstract:
Provided is a method for a user equipment (UE) for reporting uplink control information according to one embodiment of the present specification. The method may comprise the steps of: determining whether a simultaneous transmission is permitted of a first uplink control channel configured with a transmission time interval (TTI) of a first size and a second uplink control channel configured with a TTI of a second size which is different from the first size; if a simultaneous transmission is permitted, then determining if a full or partial overlap exists between a resource for the first uplink control channel and a resource for the second uplink control channel; and, if a full or partial overlap of resources exist, then selecting any one from among the first uplink control channel and second uplink control channel, and transmitting uplink control information to be transmitted by the first uplink control channel and second uplink control by means of the selected uplink control channel.
Abstract:
A method and an apparatus for transmitting/receiving a downlink signal in a wireless communication system are provided. Carrier information about a second carrier that is different from a first carrier can be transmitted on the first carrier. Downlink data for UE can be transmitted on the second carrier based on the carrier information. The first carrier is a carrier having a synchronisation signal and a physical broadcast channel, and the second carrier can be a carrier without any synchronisation signals or physical broadcast channels. The first carrier can be operated on a single resource block in a guard frequency that is used in the wireless communication system.
Abstract:
Provided is a communication method for supporting various bandwidths. The device detects a synchronization signal transmitted by a wide-band cell and receives a downlink (DL) signal from the wide-band cell on the basis of the synchronization signal. A support bandwidth supported by the device is narrower than a system bandwidth supported by the wide-band cell.
Abstract:
Methods and apparatuses for a specific station, operating as a non-AP (Access Point) station permitted to operate within available channels not used by a licensed device, to operate as an AP station in a Wireless Local Area Network (WLAN) are disclosed. A specific protocol related to a registration of a station's location to operate within a white space id defined whose Information IDs comprises a registration request and a registration response. Using the defined registration request and registration response, the station can register its geographical location with a Registered Location Server (RLS), and operate as an AP STA within WS.
Abstract:
A default subcarrier spacing for use in transmission/reception of a broadcast channel is defined for each frequency range. A base station transmits a broadcast channel in a frequency band, using the default subcarrier spacing defined for a frequency range to which the corresponding frequency band belongs. A user equipment attempts to detect a broadcast channel in the frequency band where a cell search is being attempted, using the default subcarrier spacing defined for a frequency range to which the frequency band belongs.
Abstract:
The present invention discloses a method for a terminal to receive a synchronization signal in a wireless communication system. Particularly, the method includes the steps of receiving a synchronization block including a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcasting channel (PBCH) and receiving a DMRS (demodulation reference signal) via resource region in which the PBCH is received. In this case, an index of the synchronization block can be determined in consideration of a sequence of the DMRS.
Abstract:
A method for transmitting a data demodulation reference signal (DMRS) in a wireless communication system and a device therefor are disclosed. To this end, a basic DMRS is transmitted via the first OFDM symbol in a data transmission region of a predetermined subframe, and an additional DMRS is transmitted in the predetermined subframe in accordance with a level determined by a transmission environment, wherein the basic DMRS is characterized by being transmitted via the first OFDM symbol in the data transmission region of the predetermined subframe regardless of a transmission link, the structure of the subframe, and the transmission environment.
Abstract:
The present invention relates to a method and a device for transmitting, by a terminal, an acknowledgement (ACK)/negative-acknowledgement (NACK) in a wireless communication system. More specifically, the method comprises the steps of: receiving downlink data resource allocation information for indicating a specific subframe for ACK/NACK transmission; and transmitting an ACK/NACK in a specific subframe, wherein the downlink data allocation information includes a specific sequence among a plurality of sequences defined for a downlink control area, and a frame structure of the specific subframe is determined on the basis of the specific sequence.
Abstract:
A method by which a base station and a terminal transmit/receive a signal and a device for supporting the same are disclosed. More particularly, disclosed in the following explanation are: a method by which a terminal and a base station efficiently transmit/receive a signal by controlling, in units of groups, a newly proposed frame (or subframe) structure; and devices for supporting the same.