Patent ID: 9236900
Filing Date: 2016-01-12
CPC Classification: H04B,H04J

Claim Text:
1. A radio transmission apparatus comprising: circuitry operative to generate a code sequence; and a transmitter operative to transmit the generated code sequence, wherein said circuitry operative to: make a comparison between a sequence length of a reference signal and a determined value comprising one of a transmission bandwidth and a number of resource blocks; set a sequence hopping pattern determining an index of sequence, which is used in each slot of slots for generating the code sequence used as the reference signal, to a first hopping pattern, in which the index of sequence is changed between the slots, when the sequence length is shorter than the determined value based on the comparison; and set the sequence hopping pattern to a second hopping pattern, in which the index of sequence is not changed between the slots, when the sequence length is longer or equal to the determined value based on the comparison; and generate the code sequence based on the index of sequence, which is determined by the set sequence hopping pattern.