Patent ID: 8200264
Filing Date: 2012-06-12
Classification: H04B,H04L

Abstract:
1. A method for transmitting signals at an eNodeB using a plurality of antennas in a wireless communication system, the method comprising: selecting a time delay value from a set of time delay values based on non-cyclic-delay-diversity information from a receiver, wherein the non-cyclic-delay-diversity information is acknowledgment information comprising positive acknowledgments and negative acknowledgments; transmitting data from a first antenna and a second antenna of the plurality of antennas, the data transmitted from the second antenna after the data is transmitted from the first antenna according to the selected time delay value; assigning a probability to each time delay value in the set of time delay values; decreasing the probability related to a specific time delay value of the time delay values and increasing the probabilities related to other time delay values of the time delay values if negative acknowledgments are received for data transmitted with the specific time delay value and a number of the negative acknowledgments is greater than a negative-acknowledgment threshold; and increasing the probability related to a specific time delay value of the time delay values and decreasing the probabilities related to other time delay values of the time delay values if positive acknowledgments are received for data transmitted with the specific time delay value and a number of the positive acknowledgments is greater than a positive-acknowledgment threshold.