초록 ▼

The present invention is a reliable data link layer protocol to transport ATM cells over a wireless point-to-point link. The protocol ensures that the cells are transported reliably by use of a sliding window transport mechanism with selective repeat automatic repeat request (ARQ) and forward error

The present invention is a reliable data link layer protocol to transport ATM cells over a wireless point-to-point link. The protocol ensures that the cells are transported reliably by use of a sliding window transport mechanism with selective repeat automatic repeat request (ARQ) and forward error correction (FEC). The protocol minimizes ATM header overhead by means of header compression and provides per-cell FEC whose size can be changed adaptively. The protocol also provides parity cells for recovery from errors that cannot be corrected using the per-cell FEC field. The number of these cells as well as the size of a window or frame can also be adaptively changed. In addition, the window can be terminated to request an immediate acknowledgment.

대표청구항 ▼

[ What is claimed is:] [14.] A data protocol for use in transmitting ATM cells in a communications network, wherein said communications network includes portable base station (PBS) switches configurable into an ad-hoc backbone network, said PBS switches adapted to communicate with wireless mobile de

[ What is claimed is:] [14.] A data protocol for use in transmitting ATM cells in a communications network, wherein said communications network includes portable base station (PBS) switches configurable into an ad-hoc backbone network, said PBS switches adapted to communicate with wireless mobile devices, said PBS switches and said wireless mobile devices having memory for storing and processing said ATM cells using said data protocol, said data protocol comprising:a variably sized message window, said message window including,at least one control message including processing information regarding said message window, wherein variable combinations of control, information and parity messages are selectively inserted within said message window based on service requirements, and wherein specific ones of said control messages are indicative of the size of said message window.