Method and apparatus of transmitting scheduling request in wireless communication system
A method and an apparatus of transmitting scheduling request (SR) in a wireless communication system are provided. The method includes configuring a physical uplink control channel (PUCCH) for a SR in a subframe, the subframe comprising a plurality of single carrier-frequency division multiple access (SC-FDMA) symbols, wherein one SC-FDMA symbol on the PUCCH is punctured and transmitting the SR on the PUCCH in the subframe.
1. A method of transmitting a scheduling request, the method performed by a mobile station (MS) and comprising:
receiving a sounding reference signal (SRS) configuration that is configured to transmit at least an SRS;
receiving a simultaneous transmission indicator indicating whether the SRS and an acknowledgement/non-acknowledgment (ACK/NACK) for hybrid automatic repeat request (HARQ) are transmitted in a same SRS subframe;
determining the SRS subframe according to the SRS configuration; and
transmitting the SRS and a scheduling request (SR) in the same SRS subframe when the SR is triggered at the SRS subframe and the simultaneous transmission indicator enables transmission of the SRS and the ACK/NACK for HARQ in the same SRS subframe,
wherein the SRS subframe includes a plurality of single carrier-frequency division multiple access (SC-FDMA) symbols,
wherein the SRS is transmitted in a last SC-FDMA symbol of the plurality of SC-FDMA symbols of the SRS subframe, and
wherein the SR is transmitted in the remaining SC-FDMA symbols of the plurality of SC-FDMA symbols of the SRS subframe.
2. The method of claim 1 , further comprising using a punctured SC-FDMA symbol as the last SC-FDMA symbol.
3. A mobile terminal, comprising:
a radio frequency (RF) unit configured to transmit and receive a radio signal; and
a processor coupled to the RF unit and configured to:
receive, via the RF unit, a sounding reference signal (SRS) configuration that is configured to transmit at least an SRS;
receive, via the RF unit, a simultaneous transmission indicator indicating whether the SRS and an acknowledgement/non-acknowledgment (ACK/NACK) for hybrid automatic repeat request (HARQ) are transmitted in a same SRS subframe;
determine the SRS subframe according to the SRS configuration; and
control the RF unit to transmit the SRS and a scheduling request (SR) in the same SRS subframe when the SR is triggered at the SRS subframe and the simultaneous transmission indicator enables transmission of the SRS and the ACK/NACK for HARQ in the same SRS subframe,
wherein the SRS subframe includes a plurality of single carrier-frequency division multiple access (SC-FDMA) symbols,
wherein the SRS is transmitted in a last SC-FDMA symbol of the plurality of SC-FDMA symbols of the SRS subframe, and
wherein the SR is transmitted in the remaining SC-FDMA symbols of the plurality of SC-FDMA symbols of the SRS subframe.
4. The apparatus of claim 3 , wherein the last SC-FDMA symbol used for the SRS is a punctured SC-FDMA symbol.