Patent ID: 6654428
Filing Date: 2003-11-25
Classification: H04B,H04L,H04W

Abstract:
A method for processing a radio signal, comprising:converting, in an analog domain, between a radio frequency signal and it analog intermediate frequency signal; converting between the analog intermediate frequency signal and corresponding digitized intermediate frequency signal data; buffering the digitized intermediate frequency signal data in a buffer; transferring by direct memory access, in page multiples, pages of digitized IF signal data between the buffer and system space of memory; processing the digitized intermediate frequency signal data in a computer program; switching at least a page of random access memory, in which digitized intermediate frequency signal data is stored, from system space to user space so that an application can access the data; switching at least another page from user space to system space to enable direct memory access transfer relative thereto; and processing the digitized intermediate frequency signal data in user space from the application.