Patent ID: 11923965
Assignee: PANASONIC HOLDINGS CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. A communication method, comprising:
transmitting data to a terminal; and
receiving, from the terminal, an acknowledgement/negative acknowledgement (ACK/NACK) signal for the data, the ACK/NACK signal being multiplied with a sequence defined by a cyclic shift value having a cyclic shift index, which is within a first subset including N number of one or more cyclically continuous indexes where N is an integer less than twelve, the first subset being mutually exclusive with a second subset in each of two consecutive slots, the second subset including one or more indexes used for a channel quality indicator (CQI) signal where the first subset and the second subset are in a set of indexes, and the same N number of one or more cyclically continuous indexes being usable for the ACK/NACK signal in each of the two consecutive slots such that, responsive to N being more than one, the same N number of a plurality of cyclically continuous indexes are usable for the ACK/NACK signal in each of the two consecutive slots, and responsive to N being one, one of the plurality of cyclically continuous indexes is usable for the ACK/NACK signal in each of the two consecutive slots.