Patent ID: 6728774
Filing Date: 2004-04-27
Classification: H04L,H04W

Abstract:
A method of defining an IrDA protocol stack having a series of layers, for providing transaction support for IrDA-compatible systems including at least a transceiver device and a host adapted for IR transmissions therebetween, comprising the steps of:providing a Connectivity layer defining the operating conditions for a physical IR link between said transceiver device and said host; providing an Ir Link Access Protocol (IrLAP) layer, cooperating with said Connectivity layer, defining the specification for establishing a physical IR link between said transceiver device and said host, and comprising: Media Access Control (MAC) rules for the IrLAP specification defining the requirements before the initiation of an IR transmission between said transceiver device and said host; Framing rules for defining the form of transmitted (Tx) and received (Rx) IR transmissions between said transceiver device and said host; and connection-less data defining rules for the IrLAP layer; and providing a Link Management Protocol (LMP) layer, cooperating with said IrLAP layer, defining the specification for establishing service-to-service connection binding, and division of a reliable IrLAP connection to multiple channels, using frame-by-frame multiplexing, and comprising: connection-less data defining rules for the LMP layer; and connection-less Link Service Access Point (LSAP) defining rules for establishing a service-to-service connection by binding an LSAP of said transceiver device with an LSAP of said host for transmitting and accepting data in IR transmissions exchanged therebetween.