Patent ID: 7434133

Claim:
A method of retransmitting a data frame in a wireless network, comprising: a first network apparatus transmitting a data frame requesting a response frame to a second network apparatus; the second network apparatus determining a reception mode of the data frame the second network apparatus transmitting a response frame to the first network apparatus, wherein the response frame is of a first type or a second type based on the reception mode of the data frame; and the first network apparatus retransmitting the data frame according to a type of the response frame transmitted to the first network apparatus; wherein: the wireless network conforms to the IEEE 802.15.3 standard; the response frame has an “Imm-ACK” frame structure conforming to the IEEE 802.15.3 standard; and a response frame of the first type is distinguished from a response frame of the second type using a value of a frame type field comprised in the Imm-ACK frame.