EP3179769B1

5G,4G

Title

BASE STATION AND RETRANSMISSION CONTROL METHOD

Application Number:

EP20170152215

Publication Date:

17-10-2018

Current Assignee:

Family ID:

Application Date:

03-08-2010

Publication Country:

US

Priority Date:

02-10-2009

Declaring Company:

Abstract  Abstract

A base station and a communication method are provided which minimize the increase in overhead in an uplink control channel (PUCCH) even if channel selection is used as the method to transmit response signals during carrier-aggregation communication using a plurality of downlink unit bands. From a terminal a first/second response signal (ACK/ NACK/ DTX) for first/second downlink data and a scheduling request are received within a same subframe. The response signals use a phase point out of four of a first or second uplink control channel resource. The 1st phase point is used when the first response signal denotes ACK and the second response signal denotes NACK or DTX. The 2nd phase point is used when the first response signal denotes NACK or DTX and the second response signal denotes NACK or DTX. The 3rd phase point is used when the first response signal denotes ACK and the second response signal denotes ACK. The 4th phase point is used when the first response signal denotes NACK or DTX and the second response signal denotes ACK.

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.