Method and apparatus for transmitting uplink signal in wireless communication system

摘要

A method and apparatus for transmitting an uplink signal in a wireless communication system are disclosed. A transmission apparatus for receiving an uplink (UL) signal from a user equipment (UE) and transmitting the received UL signal to a base station (BS) in a wireless communication system includes: a plurality of reception antennas configured to receive UL signals from the UE; a radio frequency (RF) repeater configured to amplify and map the received UL signals to at least one transmission antenna; and a plurality of transmission antennas configured to transmit the amplified UL signals to the BS, wherein the RF repeater is configured to select M received UL signals from among a plurality of received UL signals which are received in the plurality of reception antennas, and map the M received UL signals to N transmission antennas from among the plurality of transmission antennas, and the number of the reception antennas (Nrx,REP) is higher than the number of the transmission antennas (Ntx,REP), and N is the number of the transmission antennas which is used to transmit the M received UL signals.

主权项

1. A transmission apparatus for receiving a plurality of uplink (UL) signals from a user equipment (UE) and transmitting the plurality of received UL signals to a base station (BS) in a wireless communication system, the transmission apparatus comprising:
a plurality of reception antennas (Nrx,REP Rx antennas) configured to receive a plurality of UL signals from the UE; a radio frequency (RF) repeater configured to amplify and map the plurality of received UL signals to at least one transmission antenna; and a plurality of transmission antennas (Ntx,REP Tx antennas) configured to transmit the plurality of amplified UL signals to the BS, wherein the RF repeater is further configured to select M received UL signals from among Nrx,REP received UL signals which are received by the Nrx,REP Rx antennas, and map the M received UL signals to N Tx antennas from among the Ntx,REP Tx antennas, wherein if M is higher than N, the RF repeater is configured to perform grouping of the M received UL signals to N signal groups, where one of the N signal groups is respectively mapped to one of the N Tx antennas, wherein the N signal groups comprise a first signal group which includes relatively good-quality UL signals among the M received UL signals and a second signal group which includes relatively poor-quality UL signals among the M received UL signals, and wherein a number of UL signals belonging to the first signal group is less than a number of UL signals belonging to the second signal group.