Method of transmitting scheduling request in a wireless communication system
First Claim
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1. A method of transmitting a scheduling request in a wireless communication system, performed by a user equipment, the method comprising:
- configuring an uplink control channel for transmitting the scheduling request, wherein the scheduling request is contained in a subframe comprising two consecutive slots, each slot comprising a first set of orthogonal frequency division multiplexing (OFDM) symbols and a second set of OFDM symbols; and
transmitting the scheduling request on the uplink control channel to a base station, wherein configuring the uplink control channel comprises, for the OFDM symbols in each slot;
mapping one of a plurality of first frequency domain sequences to each OFDM symbol in the first set of OFDM symbols, thereby generating a first set of mapped frequency domain sequences, wherein each of the plurality of first frequency domain sequences is cyclic shifted relative to each of the other first frequency domain sequences;
mapping one of a plurality of second frequency domain sequences to each OFDM symbol in the second set of OFDM symbols, thereby generating a second set of mapped frequency domain sequences, wherein each of the plurality of second frequency domain sequences is cyclic shifted relative to each of the other second frequency domain sequences;
spreading the first set of mapped frequency domain sequences with a first orthogonal sequence, the length of the first orthogonal sequence having a value equal to the number of OFDM symbols in the first set of OFDM symbols; and
spreading the second set of mapped frequency domain sequences with a second orthogonal sequence, the length of the second orthogonal sequence having a value equal to the number of OFDM symbols in the second set of OFDM symbols.
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Abstract
A method of transmitting a scheduling request which is used to request a radio resource for uplink transmission includes configuring an uplink control channel for transmission of a scheduling request 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 being carried by presence or absence of transmission of the uplink control channel, and transmitting the scheduling request on the uplink control channel.
41 Citations
16 Claims
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1. A method of transmitting a scheduling request in a wireless communication system, performed by a user equipment, the method comprising:
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configuring an uplink control channel for transmitting the scheduling request, wherein the scheduling request is contained in a subframe comprising two consecutive slots, each slot comprising a first set of orthogonal frequency division multiplexing (OFDM) symbols and a second set of OFDM symbols; and transmitting the scheduling request on the uplink control channel to a base station, wherein configuring the uplink control channel comprises, for the OFDM symbols in each slot; mapping one of a plurality of first frequency domain sequences to each OFDM symbol in the first set of OFDM symbols, thereby generating a first set of mapped frequency domain sequences, wherein each of the plurality of first frequency domain sequences is cyclic shifted relative to each of the other first frequency domain sequences; mapping one of a plurality of second frequency domain sequences to each OFDM symbol in the second set of OFDM symbols, thereby generating a second set of mapped frequency domain sequences, wherein each of the plurality of second frequency domain sequences is cyclic shifted relative to each of the other second frequency domain sequences; spreading the first set of mapped frequency domain sequences with a first orthogonal sequence, the length of the first orthogonal sequence having a value equal to the number of OFDM symbols in the first set of OFDM symbols; and spreading the second set of mapped frequency domain sequences with a second orthogonal sequence, the length of the second orthogonal sequence having a value equal to the number of OFDM symbols in the second set of OFDM symbols. - View Dependent Claims (2, 3, 4, 5, 6, 12, 13)
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7. A method of transmitting a scheduling request in a wireless communication system, performed by a user equipment, the method comprising:
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configuring an uplink control channel for transmitting the scheduling request using a plurality of OFDM (orthogonal frequency division multiplexing) symbols; and transmitting the scheduling request on the uplink control channel to a base station, wherein configuring the uplink control channel comprises; mapping one of a plurality of first frequency domain sequences to each of a first set of OFDM symbols, thereby generating a first set of mapped frequency domain sequences, wherein each of the plurality of first frequency domain sequences is cyclic shifted relative to each of the other first frequency domain sequences; mapping one of a plurality of second frequency domain sequences to each of a second set of OFDM symbols, thereby generating a second set of mapped frequency domain sequences, wherein each of the plurality of second frequency domain sequences is cyclic shifted relative to each of the other second frequency domain sequences; spreading the first set of mapped frequency domain sequences with a first orthogonal sequence, the length of the first orthogonal sequence having a value equal to the number of OFDM symbols in the first set of OFDM symbols; and spreading the second set of mapped frequency domain sequences with a second orthogonal sequence, the length of the second orthogonal sequence having a value equal to the number of OFDM symbols in the second set of OFDM symbols. - View Dependent Claims (8, 9, 10, 11, 14, 15, 16)
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Specification