Base station, terminal, and communication method
AssigneePanasonic Intellectual Property Corporation of America
InventorsTakashi Iwai, Hidetoshi Suzuki, Ayako Horiuchi, Lilei Wang, Joachim Loehr
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Abstract
A self-contained operation using a time-unit configuration taking into consideration HARQ processes is performed. In base station, transmission section transmits a downlink signal in a downlink transmission region in a time unit composed of the downlink transmission region, an uplink transmission region, and a gap interval that is a switching point from the downlink transmission region to the uplink transmission region; and reception section receives an uplink signal in the uplink transmission region in the time unit. Each time unit includes the downlink transmission region and the uplink transmission region for each of HARQ processes.
Claims14
A communication apparatus, comprising:
- circuitry, which, in operation, maps a first uplink signal in a first region of a time unit which is comprised of 14 symbols irrespective of a subcarrier interval, the first uplink signal corresponding to a first downlink signal;
- and
- a transmitter, which, in operation, transmits the first uplink signal to a base station,
- wherein the first region is between the first downlink signal and a second uplink signal transmitted from another communication apparatus,
- wherein a second downlink signal transmitted to the other communication apparatus and the second uplink signal are assigned within the time unit,
- wherein the time unit includes a second region for a downlink transmission, the first region for an uplink transmission and a gap interval set between the first region and the second region, and only one length of one number of symbols of the gap interval is configured for the time unit, from a plurality of lengths of the one number of symbols including a length of one symbol and a length of two symbols, and
- wherein when the one length of the gap interval is less than a threshold of two symbols, the time unit has two gap intervals set between respective downlink and uplink regions, and when the one length of the gap interval is greater than or equal to the threshold of two symbols, the time unit has one gap interval.
A communication method, comprising:
- mapping a first uplink signal in a first region of a time unit which is comprised of 14 symbols irrespective of a subcarrier interval, the first uplink signal corresponding to a first downlink signal;
- and
- transmitting, by a communication apparatus, the first uplink signal to a base station,
- wherein the first region is between the first downlink signal and a second uplink signal transmitted from another communication apparatus,
- wherein a second downlink signal transmitted to the other communication apparatus and the second uplink signal are assigned within the time unit,
- wherein the time unit includes a second region for a downlink transmission, the first region for an uplink transmission and a gap interval set between the first region and the second region, and only one length of one number of symbols of the gap interval is configured for the time unit, from a plurality of lengths of the one number of symbols including a length of one symbol and a length of two symbols, and
- wherein when the one length of the gap interval is less than a threshold of two symbols, the time unit has two gap intervals set between respective downlink and uplink regions, and when the one length of the gap interval is greater than or equal to the threshold of two symbols, the time unit has one gap interval.
Dependencies are inferred from the claim text.