Patent ID: 9337983
Filing Date: 2016-05-10
CPC Classification: H04L

Claim Text:
1. A method operable in a system in which a first node and second node communicate with each other over an air interface spanning a frequency bandwidth that includes at least two distinct portions including a first portion and a second portion, the method comprising: engaging by the first node in a transmission of data to the second node and then receiving by the first node from the second node, in one of the portions of the frequency bandwidth, an acknowledgement for the transmission; making a determination by the first node, based on which of the portions of the frequency bandwidth the first node received the acknowledgement in, whether the received acknowledgement is a positive acknowledgement or rather a negative acknowledgement, wherein (a) if the first node received the acknowledgement in the first portion rather than in the second portion, then, based on the first node having received the acknowledgement in the first portion, the determination is that the acknowledgement is a positive acknowledgement and (b) if the first node received the acknowledgment in the second portion rather than the first portion, then, based on the first node having received the acknowledgement in the second portion, the determination is that the acknowledgement is a negative acknowledgement; and controlling by the first node, based on the determination, whether to engage in a re-transmission over the air interface to the second node.