Patent ID: 8351370
Filing Date: 2013-01-08
Classification: H04L

Abstract:
1. A method of transmitting a scheduling request signal, wherein the scheduling request signal is used to request a radio resource for uplink transmission in a wireless communication system, the method comprising: configuring a physical uplink control channel (PUCCH) for transmission of a scheduling request signal in a subframe, the subframe comprising two consecutive slots, a slot comprising a plurality of single carrier-frequency division multiple access (SC-FDMA) symbols, the scheduling request signal being carried by a presence or absence of transmission of the PUCCH, wherein at least one SC-FDMA symbol in the subframe is assigned for transmission of a sounding reference signal; and transmitting the scheduling request signal and the sounding reference signal in the subframe, wherein configuring the PUCCH comprises: dividing the plurality of SC-FDMA symbols in the slot into a first set of SC-FDMA symbols and a second set of SC-FDMA symbols; mapping each of first frequency domain sequences to each SC-FDMA symbol in the first set, the first frequency domain sequences being generated by cyclic shifts of a base sequence; mapping each of second frequency domain sequences to each SC-FDMA symbol in the second set, the second frequency domain sequence being generated by cyclic shifts of the base sequence; spreading the first frequency domain sequences in the first set with a first orthogonal covering sequence, the first orthogonal covering sequence having a length equal to the number of SC-FDMA symbols in the first set; and spreading the second frequency domain sequences in the second set with a second orthogonal covering sequence, the second orthogonal covering sequence having a length equal to the number of SC-FDMA symbols in the second set.