Object oriented software architecture for software reconfigurable wireless modem

• US 7,318,225 B1
• Filed: 09/21/2001
• Issued: 01/08/2008
• Est. Priority Date: 09/21/2001
• Status: Expired due to Fees

• Current Assignee: Novatel Wireless, Inc. (Inseego Corp.)
• Original Assignee: Novatel Wireless, Inc. (Inseego Corp.)
• Inventors: Sorar, Ertugrul
• Primary Examiner(s): Zhen, Wei
• Assistant Examiner(s): RAMPURIA, SATISH
• Application Number:
  US09/961,508
• Time in Patent Office: 2,300 Days
• Field of Search: 717168-178, 717106-109, 717/71, 375/130, 375/222, 375/220, 375/25, 398/115, 710/5, 710/10, 710/31, 370/295, 707/103.R, 455/553.1, 709/227
• US Class Current: 717/171
• 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
• CPC Class Codes: H04B 1/3816 Mechanical arrangements for accommodating identification devices, e.g. cards or chips; with connectors for programming identification devices

Abstract

An abstract modem factory architecture and corresponding systems and methods are disclosed. This architecture and the corresponding systems and methods allow wireless modem control software for a wireless modem to be isolated from specific air interface implementation code. The use of polymorphism and dynamic binding at run time provides an interface for creating modem type without specifying concrete classes. The concrete classes remain responsible for creating the complete set of software modules specific to each modem type configuration.

Claims

1. A method for configuring a wireless modem having hardware that is capable of transmitting or receiving data via a plurality of air interface technologies, comprising the steps of:

(a) selecting a specific air interface from a set of at least two air interfaces;

(b) creating a modem factory object for the selected air interface using an abstract modem factory class;

(c) generating a hardware configuration object for the selected air interface using the modem factory object; and

(d) configuring wireless modem hardware using the hardware configuration object via an interface defined by an abstract modem configuration class.

2. The method of claim 1, wherein the selecting step is dependent upon an input from a user.

3. The method of claim 1, wherein the generating step comprises generating a plurality of hardware configuration objects for the selected air interface using the modem factory object, and wherein the configuring step comprises configuring the wireless modem hardware using the plurality of hardware configuration objects via interfaces defined by a plurality of abstract modem configuration classes.

4. The method of claim 1, further comprising:

(e) checking a memory for a library corresponding to the selected air interface;

(f) requesting the library via a network if the library is not found in the checking step; and

(g) skipping the steps of creating, generating and configuring, if the step of requesting does not result in successful retrieval of the library.

5. A computer readable storage medium having stored thereon a computer program product for causing one or more microprocessors to perform the steps for configuring wireless modem hardware, the computer program product comprising:

computer code for selecting a specific air interface from a set of at least two air interfaces;

computer code for creating a modem factory object for the selected air interface using an abstract modem factory class;

computer code for generating a hardware configuration object for the selected air interface using the modem factory object; and

computer code for configuring wireless modem hardware using the hardware configuration object via an interface defined by an abstract modem configuration class.

6. The computer readable storage medium of claim 5, wherein the computer code for selecting is dependent upon an input from a user.

7. The computer readable storage medium of claim 5, wherein the computer code for generating further comprises computer code for generating a plurality of hardware configuration objects for the selected air interface using the modem factory object, and wherein the computer code for configuring further comprises computer code for configuring the wireless modem hardware using the plurality of hardware configuration objects via interfaces defined by a plurality of abstract modem configuration classes.

8. The computer readable storage medium of claim 5, further comprising

computer code for checking a memory for a library corresponding to the selected air interface;

computer code for requesting the library via a network if the library is not found when checking the memory;

computer code for skipping creating, generating and configuring, if requesting does not result in successful retrieval of the library.

9. A computer system comprising:

(a) an input/output system;

(b) a wireless modem coupled with the input/output system; and

(c) a processing system coupled with the wireless modem and configured to;

(i) select a specific air interface from a set of at least two air interfaces;

(ii) create a modem factory object for the selected air interface using an abstract modem factory class;

(iii) generate a hardware configuration object for the selected air interface using the modem factory object; and

(iv) configure wireless modem hardware using the hardware configuration object via an interface defined by an abstract modem configuration class.

10. The computer system of claim 9, wherein the processing system is further configured to select the specific air interface based upon an input from a user.

11. The computer system of claim 9, wherein the processing system is further configured to:

(v) generate a plurality of hardware configuration objects for the selected air interface using the modem factory object; and

(vi) configure the wireless modem hardware using the plurality of hardware configuration objects via interfaces defined by a plurality of abstract modern configuration classes.

12. The computer system of claim 9, wherein the processing system is further configured to:

(v) check a memory for a library corresponding to the selected air interface;

(vi) request the library via a network if the library is not found in the memory; and

(vii) fail to create the modem factory object, generate the hardware configuration object, or configure the wireless modem hardware, if the library is not successfully retrieved.

13. A method for configuring a wireless modem having hardware that is capable of transmitting or receiving data via a plurality of air interface technologies, comprising:

(a) step of selecting a specific air interface from a set of at least two air interfaces;

(b) step of creating a modem factory object for the selected air interface using an abstract modem factory class;

(c) step of generating a hardware configuration object for the selected air interface using the modem factory object; and

(d) step of configuring wireless modem hardware using the hardware configuration object via an interface defined by an abstract modem configuration class.

14. The method of claim 13, wherein the step of selecting is dependent upon an input from a user.

15. The method of claim 13, wherein the step of generating comprises step of generating a plurality of hardware configuration objects for the selected air interface using the modem factory object, and wherein the step of configuring comprises step of configuring the wireless modem hardware using the plurality of hardware configuration objects via interfaces defined by a plurality of abstract modem configuration classes.

16. The method of claim 13, further comprising:

(e) step of checking a memory for a library corresponding to the selected air interface;

(f) step of requesting the library via a network if the library is not found in the memory; and

(g) step of skipping the steps of creating, generating and configuring, if the step of requesting does not result in successful retrieval of the library.