Method for connecting a mobile radio communication apparatus to a plurality of radio communication systems

• US 20060035671A1
• Filed: 10/27/2005
• Published: 02/16/2006
• Est. Priority Date: 01/25/2001
• Status: Active Grant

• Current Assignee: Daisuke Takeda, Jun Mitsugi, Kaoru Inoue, Manabu Mukai, Shun-Ichi Kubo, Takashi Wakutsu, Takeshi Tomizawa
• Original Assignee: Daisuke Takeda, Jun Mitsugi, Kaoru Inoue, Manabu Mukai, Shun-Ichi Kubo, Takashi Wakutsu, Takeshi Tomizawa
• Inventors: Takeda, Daisuke, Tomizawa, Takeshi, Wakutsu, Takashi, Mukai, Manabu, Inoue, Kaoru, Mitsugi, Jun, Kubo, Shun-ichi
• Granted Patent: US 7,206,601 B2
• Time in Patent Office: Days
• US Class Current: 455/557
• CPC Class Codes: H04B 1/0003 Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain digital baseband systems H04L25/00; digital modulation/demodulation H04L27/00; CDMA H04B1/707; TDMA H04B7/2643; image transmission H04N5/00

Abstract

A mobile radio communication apparatus comprises 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 that controls the signal processing device to redefine, to the resource, another modem function and another protocol function corresponding to respective one of the mobile communication systems.

Claims

1-28. -28. (canceled)

29. A method for connecting a mobile radio communication apparatus to a plurality of radio communication systems, comprising:

defining a plurality of functions in a resource of a signal processing device, said functions including at least a modem function and a protocol function;

performing signal processing in said resource to transmit and receive a radio signal through a wireless transmitter-receiver device;

controlling said signal processing device to redefine, to the resource, another modem function and another protocol function corresponding to a respective one of the mobile communication systems;

executing a predetermined program in a general-use processor serving as another part of said resource;

redefining a circuit structure of at least one programmable hardware device serving as a part of said resource according to a set of a plurality of logic circuits which carry out basic calculations of at least a part of said signal processing;

determining respective shares of processing to be executed by said at least one programmable hardware device and the general-use processor in accordance with the contents of said signal processing; and

controlling said signal processing device to define, to the resource, the signal processing functions in accordance with determination of respective shares.

30. The method recited in claim 29, further comprising:

determining if it is possible to additionally define a newly requested signal processing function to said resource by comparing a residual resource amount with a resource amount necessary for defining, to the resource, the newly requested signal processing function of the resource; and

executing an additional definition when it is determined that the residual resource amount is greater than or equal to the resource amount necessary for defining the newly requested signal processing function.

31. A method for connecting a mobile radio communication apparatus to a plurality of radio communication systems, comprising:

defining a plurality of functions in a resource of a signal processing device, said functions including at least a modem function and a protocol function;

performing signal processing in said resource to transmit and receive a radio signal through a wireless transmitter-receiver device;

controlling said signal processing device to redefine, to the resource, another modem function and another protocol function corresponding to a respective one of the mobile communication systems;

redefining a circuit structure of at least one programmable hardware device serving as a part of said resource according to a set of a plurality of logic circuits which carry out basic calculations of at least a part of said signal processing;

storing a program in a first memory of said signal processing device which indicates a procedure of said signal processing;

storing a plurality of circuit structure descriptions of said programmable hardware device corresponding to processing contents respectively in a second memory of said signal processing device, the circuit structure descriptions being used by said signal processing device to carry out said signal processing; and

controlling the at least one programmable hardware device and said second memory to revise the circuit structure descriptions of said programmable hardware device in accordance with the program read out from said first memory under control of said controller.

32. The method recited in claim 31, further comprising:

determining if it is possible to additionally define a newly requested signal processing function to said resource by comparing a residual resource amount with a resource amount necessary for defining, to the resource, the newly requested signal processing function of the resource; and

executing an additional definition when it is determined that the residual resource amount is greater than or equal to the resource amount necessary for defining the newly requested signal processing function.

33. A method for connecting a mobile radio communication apparatus to a plurality of radio communication systems, comprising:

defining a plurality of functions in a resource of a signal processing device, said functions including at least a modem function and a protocol function;

performing signal processing in said resource to transmit and receive a radio signal through a wireless transmitter-receiver device;

controlling said signal processing device to redefine, to the resource, another modem function and another protocol function corresponding to a respective one of the mobile communication systems;

redefining a circuit structure of at least one programmable hardware device serving as a part of said resource according to a set of a plurality of logic circuits which carry out basic calculations of at least a part of said signal processing;

storing a program in a first memory of said signal processing device which indicates a procedure of said signal processing;

storing a plurality of circuit structure descriptions of said programmable hardware device corresponding to processing contents respectively in a second memory of said signal processing device, the circuit structure descriptions being used by said signal processing device to carry out said signal processing;

controlling the at least one programmable hardware device and said second memory to revise the circuit structure descriptions of said programmable hardware device in accordance with the program read out from said first memory under control of said controller;

performing at least another part of said signal processing by executing a given program on a general-use processor serving as another part of said resource;

determining respective shares of processing to be executed by said at least one programmable hardware device and the general-use processor in accordance with the program read out from said first memory;

selecting one of said plurality of circuit structure descriptions stored in said second memory in accordance with determination of the shares;

supplying selected descriptions to said at least one programmable hardware device; and

giving an execution instruction of the processing to be shared by said general-use processor to said general-use processor.

34. The method recited in claim 33, further comprising:

determining if it is possible to additionally define a newly requested signal processing function to said resource by comparing a residual resource amount with a resource amount necessary for defining, to the resource, the newly requested signal processing function of the resource; and

executing an additional definition when it is determined that the residual resource amount is greater than or equal to the resource amount necessary for defining the newly requested signal processing function.