RU2011117566A

5G,4G

Title

Radio communication device and radio communication method

Application Number:

RU20110117566

Publication Date:

10-12-2012

Current Assignee:

PANASONIC CORP

Family ID:

42128525

Application Date:

21-10-2009

Declaring Company:

PANASONIC CORP , SUN PATENT TRUST

Publication Country:

US

Priority Date:

30-10-2008

View on Espacenet goto-link

Title

Radio communication device and radio communication method

Application Number:

RU20110117566

Family ID:

42128525

Publication Country:

US

Publication Date:

10-12-2012

Application Date:

21-10-2009

Priority Date:

30-10-2008

Current Assignee:

PANASONIC CORP

Declaring Company:

PANASONIC CORP , SUN PATENT TRUST

View on Espacenet goto-link

Abstract  Abstract

It is possible to obtain the transmission diversity effect by applying a CDD while reducing the inter-code interference when performing a code multiplexing. When an Ack/Nack signal is transmitted from a user terminal to a base station in an upstream control channel by using an Ack/Nack resource the signal is code-multiplexed by using a code sequence containing an orthogonal sequence and a cyclic shift sequence and transmitted from a plurality of user terminals to the base station.  The aggregation size indicating the number of control signals of the downstream control channel is used as follows.  If the aggregation size is greater than 1 it is determined that no resource located at the right of the axis of the cyclic shift amount of the cyclic shift sequence in the same orthogonal code of the orthogonal sequence is used and the Ack/Nack signal to which CDD is applied from a plurality of antennas is transmitted by using a resource ACK #0 allocated to the local device and a reserved resource ACK #1 which have the same orthogonal code and different cyclic shift amounts.

It is possible to obtain the transmission diversity effect by applying a CDD while reducing the inter-code interference when performing a code multiplexing. When an Ack/Nack signal is transmitted from a user terminal to a base station in an upstream control channel by using an Ack/Nack resource the signal is code-multiplexed by using a code sequence containing an orthogonal sequence and a cyclic shift sequence and transmitted from a plurality of user terminals to the base station.  The aggregation size indicating the number of control signals of the downstream control channel is used as follows.  If the aggregation size is greater than 1 it is determined that no resource located at the right of the axis of the cyclic shift amount of the cyclic shift sequence in the same orthogonal code of the orthogonal sequence is used and the Ack/Nack signal to which CDD is applied from a plurality of antennas is transmitted by using a resource ACK #0 allocated to the local device and a reserved resource ACK #1 which have the same orthogonal code and different cyclic shift amounts.

Note:

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The information in grey was provided by the patent holder

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