Title:
A mobile station and a transmission method
Document Type and Number:
Japanese Patent JP6250004
Kind Code:
B2
Abstract:
Provided is a radio communication device which can improve the NACK error rate characteristic. The device includes: a scrambling unit (214) which multiplies a response signal after modulated, by a scrambling code "1" or "-1" so as to inverse a constellation for each of response signals on a cyclic shift axis; a spread unit (215) which performs a primary spread of the response signal by using a ZAC sequence set by a control unit (209); and a spread unit (218) which performs a secondary spread of the response signal after subjected to the primary spread, by using a block-wise spread code sequence set by the control unit (209).
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Inventors:
Masago Nakao
Daichi Imamura
Daichi Imamura
Application Number:
JP2015160947A
Publication Date:
December 20, 2017
Filing Date:
August 18, 2015
Export Citation:
Assignee:
Optis Wireless Technology LLC
International Classes:
H04L27/26; H04J13/00; H04L1/12; H04L27/00; H04L29/08
Domestic Patent References:
| JP2003500977A | ||||
| JP2007510329A |
Foreign References:
| WO2005004367A2 |
Other References:
Nokia,Further clarifications and text proposal for refined closed loop modes 2 and 3[online], 3GPP TSG-RAN WG1♯7 R1-99c31,インターネット
Attorney, Agent or Firm:
Koichi Washida
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