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US 8,948,159 B2Granted
Transmitter, receiver, mobile communication system and synchronization channel
AssigneeNtt Docomo, Inc.
InventorsMotohiro Tanno, Kenichi Higuchi, Mamoru Sawahashi, Yoshihisa Kishiyama
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Abstract
A transmitter includes an amplitude adjustment unit multiplying an amplitude adjustment sequence value for adjusting amplitude with a synchronization channel transmitted from a base station for establishing synchronization with a mobile station.
Claims4
A transmitter comprising:
- a generation unit configured to generate multiple OFDM symbols included in a predefined time unit;
- and
- a transmitting unit configured to transmit the multiple OFDM symbols generated at the generation unit,
- wherein the generation unit arranges a primary synchronization channel at an end OFDM symbol in the predefined time unit, the primary synchronization channel being generated based on one sequence, and a secondary synchronization channel, where two types of sequences are alternately arranged in a frequency domain, at an OFDM symbol preceding the OFDM symbol where the primary synchronization channel is arranged, and a cyclic prefix is arranged for each of the multiple OFDM symbols, and any of specified different cyclic prefix lengths is used.
1 more element
A transmitting method comprising the steps of:
- generating multiple OFDM symbols included in a predefined time unit;
- and
- transmitting the generated multiple OFDM symbols,
- wherein the generating step comprises arranging a primary synchronization channel at an end OFDM symbol in the predefined time unit, the primary synchronization channel being generated based on one sequence, and a secondary synchronization channel, where two types of sequences are alternately arranged in a frequency domain, at an OFDM symbol preceding the OFDM symbol where the primary synchronization channel is arranged, and a cyclic prefix is arranged for each of the multiple OFDM symbols, and any of specified different cyclic prefix lengths is used.
1 more element
Dependencies are inferred from the claim text.