摘要:
Disclosed is a method in which a relay node transmits/receives signals via a specific downlink subframe and a specific uplink subframe. The relay node may consider the propagation delay in accordance with the distance between a base station and the relay node to set a subframe timing for transmitting/receiving signals to/from the base station. The relay node may further consider the delay time of 0.5 symbol, 1 symbol or the like in addition to said propagation delay in the event of setting a downlink receiving timing. Setting an uplink subframe timing of the relay node can be divided into the event the timing is set on the basis of a backhaul link and the event the timing is set on the basis of an access link. In the event thee timing is set on the basis of the access link, the propagation delay can bee double that of the vent the timing is set on the basis of the backhaul link, which should be considered in setting the timing.
摘要:
Disclosed is a repeater apparatus for detecting a downlink HARQ ACK/NACK feedback signal from a base station. An RF (Radio Frequency) unit receives specific channel configuration information which includes offset information indicating the starting point of a specific channel to which said HARQ ACK/NACK feedback signal is transmitted from the base station and the position of the specific channel allocated for an exclusive use of said repeater apparatus within said specific channel from said start point, and receives the HARQ ACK/NACK feedback signal from said base station for an uplink transmission of said repeater. The processor detects said specific channel allocated for exclusive use of the repeater apparatus based on said received specific channel configuration information thereby decoding said received HARQ ACK/NACK feedback signal.
摘要:
A method and apparatus of transmitting a reference signal in a wireless communication system is provided. Demodulation Reference Signals (DMRSs) for a plurality of respective antennas is generated. The DMRSs are mapped to a resource region, and transmitted through the respective corresponding antennas. The DMRSs are multiplexed using at least one of frequency division multiplexing (FDM), code division multiplexing (CDM), and time division multiplexing (TDM) methods and mapped in the resource region. Also, a position of an orthogonal frequency division multiplexing (OFDM) symbol to which the DMRSs are mapped in the resource region is an OFDM symbol to which a physical downlink control channel (PDCCH) and a legacy cell-specific reference signal (CRS) are not mapped.
摘要:
A method for reducing handover interruption time in a mobile station is disclosed, in which a mobile station performs a ranging procedure using a dedicated ranging code previously allocated from a target base station. The dedicated ranging code allocated by the target base station may be provided through the serving base station, or may directly be provided from the target base station.
摘要:
A method for receiving data by a relay station (RS) in a wireless communication system includes: receiving radio resource allocation information via an R-PDCCH (R-Physical Downlink Control Channel); and receiving data from a base station (BS) via an R-PDSCH (R-Physical Downlink Shared Channel) indicated by the radio resource allocation information, wherein the radio resource allocation information includes information regarding an allocation of resource blocks in a frequency domain and information regarding an allocation of OFDM symbols in a time domain. Since the radio resource allocation information providing information regarding a time relationship between a control channel transmitted by the BS to a UE and a control channel transmitted by the RS to a UE connected to the RS is provided, the RS can reliably receive a signal transmitted from the BS in a backhaul link between the BS and the RS in a wireless communication system including the RS.
摘要:
The present invention relates to a wireless communication system. Specifically, the invention relates to a method for configuring a component carrier at a base station in a wireless communication system, comprising the steps of determining whether initial access is permitted to a user equipment with respect to a downlink component carrier; and transmitting a synchronization channel signal and a broadcast channel signal to at least one user equipment via the downlink component carrier, wherein the initial access permission is applied to said at least one user equipment by modifying at least one of the synchronization channel signal and the broadcast channel signal.
摘要:
Provided are a method and a device for monitoring the control channel in a multicarrier system. The terminal determines a plurality of terminal-specific search spaces corresponding respectively to a plurality of scheduled component carriers in a control region within a subframe. The terminal monitors a downlink control channel for the scheduled component carriers corresponding respectively to the plurality of terminal-specific search spaces.
摘要:
Provided are a measurement reporting method and device in a wireless communications system. A mobile station receives data relating to a measurement set for K (M≦N) component carriers to be measured from among N component carriers, from a base station. The mobile station measures the K component carriers. The mobile station then reports the results of the measurement of the K component carriers to the base station.
摘要:
A repeater apparatus for detecting a downlink HARQ ACK/NACK feedback signal from a base station is provided. An RF (Radio Frequency) unit receives specific channel configuration information which includes offset information indicating the starting point of a specific channel to which said HARQ ACK/NACK feedback signal is transmitted from the base station and the position of the specific channel allocated for an exclusive use of the repeater apparatus within the specific channel from said start point, and receives the HARQ ACK/NACK feedback signal from the base station for an uplink transmission of the repeater. The processor detects the specific channel allocated for exclusive use of the repeater apparatus based on the received specific channel configuration information thereby decoding the received HARQ ACK/NACK feedback signal.
摘要:
The present invention relates to a method for a terminal for transmitting an uplink control signal, i.e., an ACK/NACK (Acknowledgement/Negative-ACK) signal, in a wireless communication system. In particular, the method comprises: mapping part of the ACK/NACK signals to selection information, which is composed of a combination of message areas and reference signal areas; independently selecting one message area and one reference signal from a plurality of control channel resources that are located in the same resource block, based on the mapped selection information; allocating the selected message area to the other ACK/NACK signals; and transmitting the ACK/NACK signal to a base station by using the selected message area and the selected reference signal area.