US2012134333A1

5G,4G

Title

Terminal device and retransmission control method

Application Number:

US201013389255

Family ID:

Publication Date:

31-05-2012

Application Date:

06-08-2010

Priority Date:

07-08-2009

Current Assignee:

Publication Country:

US

Declaring Company:

Abstract  Abstract

Provided are a terminal device and a retransmission control method by which when carrier aggregation communication using a plurality of downlink unit bands is applied the quality of downlink data transmitted by each downlink unit band can be maintained while suppressing the increase in overhead of downlink allocation control information. In a terminal ( 200) a control unit (208) performs transmission control of a response signal on the basis of a reception success/failure pattern of downlink data received by a downlink unit band which is included in a unit band group set in the terminal itself. The control unit (208) makes the phase points of the response signal different in accordance with a number of downlink data which has been successively received namely a number of ACK in the reception success/failure pattern and makes the phase points of the response signal between reception success/failure patterns identical when there are a plurality of reception success/failure patterns having the same ACK number.

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

Implicitly disclosed patent

Basis patent

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