Patent ID: 9450710
Filing Date: 2016-09-20
CPC Classification: H04L,H04W

Claim Text:
1. A method for a user equipment (UE) to transmit an acknowledgement signal in a communication system, the method comprising: identifying a set of M subframes; detecting at least one control channel on a physical resource block (PRB) set in the set of M subframes, where the control channel includes downlink control information comprising an acknowledgement resource offset having at least two bits and the PRB comprises at least one control channel element (CCE); determining a resource for transmitting an acknowledgement signal based on the acknowledgement resource offset; and transmitting the acknowledgement signal on a resource corresponding to the acknowledgement resource offset, wherein, when an index of a subframe from the set of M subframes is larger than 0, the acknowledgement resource offset is a value that is one of 0, 2, or one of two negative values dependent on a number of the CCEs in the PRB set of at least one subframe among the set of M subframes, and wherein, when the index of the subframe from the set of M subframes is not larger than 0, the acknowledgement resource offset is a value that is one of 0, −1, −2 or 2.