Base station, terminal and communication method
AssigneePanasonic Intellectual Property Corporation of America
InventorsAyako Horiuchi, Hidetoshi Suzuki
Life of this patent
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Abstract
A signal assignment unit (105) assigns a downlink control signal including resource assignment information of a PDSCH to a downlink resource. A specification unit (108) specifies a PUCCH resource using an offset value set to either a first PRB set or a second PRB set when the downlink control signal is disposed to spread over the first PRB set and the second PRB set. A signal separation unit (109) separates an ACK/NACK signal included in the specified PUCCH resource from a received signal from a terminal to which the downlink control signal has been transmitted.
Claims7
An integrated circuit comprising:
- reception circuitry which, in operation, controls receiving downlink control information (DCI) mapped to one or more Physical Resource Block (PRB) sets among a plurality of PRB sets;
- processing circuitry which, in operation, controls mapping an ACK/NACK signal to a Physical Uplink Control Channel (PUCCH) resource, the ACK/NACK signal being generated based on a detection result of data indicated by the DCI;
- and
- transmission circuitry which, in operation, controls transmitting the ACK/NACK signal, wherein
- the plurality of PRB sets include a first PRB set having a first plurality of ECCEs and a second PRB set having a second plurality of ECCEs different from the first plurality of ECCEs,
- for the first PRB set, an index to the PUCCH resource is determined based on a first ECCE index in which the DCI is mapped and which is offset by a higher layer signaling, and determined without adding a PRB value to the first ECCE index, and
- for the second PRB set, an index to the PUCCH resource is determined based on a sum between (1) the PRB value and (2) a second ECCE index in which the DCI is mapped and which is offset by the higher layer signaling.
Dependencies are inferred from the claim text.