Patent ID: 8391268
Filing Date: 2013-03-05
Classification: H04J,H04L

Abstract:
1. A method for transmitting positive and negative acknowledgement (ACK/NACK) bits using a signal in a communication system, the method comprising: scaling a first number of symbols by a first orthogonal cover, if an acknowledgement bit is negative (NACK); scaling the first number of symbols by a second orthogonal cover, if the acknowledgement bit is positive (ACK); scaling the first number of symbols by the first orthogonal cover, if no acknowledgement bit exists; and transmitting the first number of symbols, wherein the acknowledgement (ACK/NACK) bit is in response to data reception, wherein the signal has a duration of at least one slot, wherein the at least one slot includes the first number of symbols and a second number of symbols, and wherein a reference signal is transmitted in the first number of symbols.