Abstract: PPP frame encapsulation of IP frames—including FCS calculation, character escaping, and HDLC flag insertion—is performed by hardware acceleration circuits within a DMA module as part of a DMA transfer autonomously of a processor. Software may preprocess the IP packets prior to the hardware-accelerated processing. The hardware acceleration in the DMA module may additionally decapsulate PPP frames—including FCS calculation and comparison for error detection, escaped character recovery, and frame boundary detection—to assist in the formation of IP packets. The hardware-accelerated PPP framing may be particularly useful when a mobile terminal provides internet access, through a wireless communication network over packet data channels, to an attached peripheral device, such as a computer.

Abstract: A front-end architecture and processing method for a receiver in a multi-antenna, multi-band radio. Band-dependent components for multiple frequency bands are not duplicated in each receive chain. In one embodiment, a first receive chain includes band-dependent components for the first frequency band only. A second receive chain includes band-dependent components for the second frequency band only. The receive chains may be dedicated to particular antennas, or a switch may be utilized to route signals from different antennas to the different band-dependent components. Each receive chain may include band-independent components, or a single set of band-independent components may be utilized for the different receive chains by multiplexing the output of the band-dependent component sections.

Abstract: A mobile-terminal platform system includes an application subsystem and an access subsystem. The access subsystem includes hardware and software for providing connectivity services. The application subsystem includes hardware and software for providing user-application services. The application subsystem and the access subsystem communicate via a defined interface. Each of the application subsystem and the access subsystem may be independently scaled. This abstract is provided to comply with rules requiring an abstract that allows a searcher or other reader to quickly ascertain subject matter of the technical disclosure. This abstract is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.