RECEIVER, RESPONSE SIGNAL RECEIVING METHOD AND INTEGRATED CIRCUIT

Title:

RECEIVER, RESPONSE SIGNAL RECEIVING METHOD AND INTEGRATED CIRCUIT

Document Type and Number:

Japanese Patent JP2015144440

Kind Code:

A

Abstract:

PROBLEM TO BE SOLVED: To provide a receiver that can obtain a transmission diversity effect by applying CCD (circulation delay diversity) while reducing intersymbol interference when code multiplex is performed.SOLUTION: When an Ack/Nack signal is transmitted by using an Ack/Nack resource in an uplink control signal from a user terminal to a base station, the Ack/Nack signal is subjected to code multiplex by using a code sequence containing an orthogonal sequence and a cyclic shift sequence and transmitted from plural user terminals to the base station. When AggregationSize representing the number of control signals of a downlink control channel is larger than 1, it is determined that a resource located at the right side in the axis of the cyclic shift amount of the cyclic shift sequence in the same orthogonal code of the orthogonal sequence is not used, the Ack/Nack signal to which CDD is applied is transmitted from plural antennas by using a resource Ack#0 which is the resource of a different cyclic shift amount of the same orthogonal code and allocated to the self device, and an unused resource ACK#1.

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Inventors:

HOSHINO MASAYUKI
HORIUCHI AYAKO
NAKAO SEIGO
IMAMURA DAICHI
NISHIO AKIHIKO
OGAWA YOSHIHIKO

Application Number:

JP2015025378A

Publication Date:

August 06, 2015

Filing Date:

February 12, 2015

Export Citation:

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Assignee:

PANASONIC IP CORP AMERICA

International Classes:

H04J13/18; H04B7/02; H04J13/00; H04J13/16; H04J13/22; H04W28/06

Foreign References:

WO2008081683A1	2008-07-10
WO2009022833A2	2009-02-19

Other References:

JPN6015051278; 中尾　正悟　他: 'Ｅｖｏｌｖｅｄ　ＵＴＲＡ上り制御チャネルにおけるスクランブルの一検討' 電子情報通信学会技術研究報告Ｖｏｌ．１０８，　Ｎｏ．２４９, 20081015, ｐｐ．５５-６０
JPN6015051279; Ｐａｎａｓｏｎｉｃ: 'Ｐｒｏｐｏｓａｌ　ｆｏｒ　ｔｈｅ　ｉｍｐｌｉｃｉｔ　ｒｅｓｏｕｒｃｅ　ｍａｐｐｉｎｇ　ｆｏｒ　Ｕｐｌｉｎｋ　ＡＣＫ／ＮＡＣＫ　ｃｈａｎｎｅｌｓ' ３ＧＰＰ　ＴＳＧ-ＲＡＮ　ＷＧ１＃５２　　　　Ｒ１-０８１１０９ , 20080215
JPN6015051280; ＮＥＣ　Ｇｒｏｕｐ: 'Ｄｅｔａｉｌ　ｏｎ　ｍａｐｐｉｎｇ　ｂｅｔｗｅｅｎ　ＡＣＫ／ＮＡＣＫ　ｉｎｄｅｘ　ａｎｄ　ＣＣＥ　ｉｎｄｅｘ' ３ＧＰＰ　ＴＳＧ-ＲＡＮ　ＷＧ１＃５２　　　　Ｒ１-０８１０２０ , 20080215
JPN6015051281; ＩｎｔｅｒＤｉｇｉｔａｌ　Ｃｏｍｍｕｎｉｃａｔｉｏｎｓ，　ｅｔ　ａｌ．: 'ＡＣＫ／ＮＡＣＫ　Ｉｎｄｅｘ　Ｍａｐｐｉｎｇ　ｆｏｒ　Ｕｐｌｉｎｋ　Ｔｒａｎｓｍｉｓｓｉｏｎ　ｆｏｒ　Ｅ-ＵＴＲＡ' ３ＧＰＰ　ＴＳＧ-ＲＡＮ　ＷＧ１＃５１　　　　Ｒ１-０７４７０１ , 20071109

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