JP5873580B2

5G,4G

Title

RECEIVER RESPONSE SIGNAL RECEIVING METHOD AND INTEGRATED CIRCUIT

Application Number:

JP20150025378

Publication Date:

01-03-2016

Current Assignee:

Family ID:

Application Date:

12-02-2015

Declaring Company:

Publication Country:

US

Priority Date:

30-10-2008

Title

RECEIVER RESPONSE SIGNAL RECEIVING METHOD AND INTEGRATED CIRCUIT

Application Number:

JP20150025378

Family ID:

Publication Country:

US

Publication Date:

01-03-2016

Application Date:

12-02-2015

Priority Date:

30-10-2008

Current Assignee:

Declaring Company:

Abstract  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.

Note:

The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.