Patent ID: 7092733

Claim:
A mobile radio communication apparatus applicable to a plurality of radio communication systems, comprising: a wireless transmitter-receiver device configured to perform transmission/reception of a radio signal; a signal processing device including a resource to which functions are defined, wherein the resource handles at least a modem function and a protocol function, and configured to perform a signal processing necessary in the transmission/reception by use of the resource; and a controller which controls said signal processing device to redefine, to the resource, another modem function and another protocol function corresponding to respective one of the mobile communication systems; wherein said signal processing device comprises: at least one programmable hardware device serving as a part of said resource and including a circuit structure capable of being redefined according to a set of a plurality of logic circuits which carry out basic calculations of at least a part of said signal processing; and a general-use processor serving as another part of said resource and configured to carry out at least another part of said signal processing by executing a predetermined program; and said controller determines respective shares of processing to be executed by said programmable hardware device and the general-use processor in accordance with the contents of said signal processing and controls said signal processing device to define, to the resource, the signal processing functions in accordance with determination of the share.