Automatic selecting apparatus for an optimum wireless communication route

• US 6,058,312 A
• Filed: 12/12/1996
• Issued: 05/02/2000
• Est. Priority Date: 12/21/1995
• Status: Expired due to Term

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Kimura, Yoshinobu
• Primary Examiner(s): Chin, Wellington
• Assistant Examiner(s): Ferguson, Keith
• Application Number:
  US08/764,261
• Time in Patent Office: 1,237 Days
• Field of Search: 455/445, 455/414, 455/417, 455/560, 455/422, 455/403, 455/418, 455/412, 379/210, 379/211, 379/212, 379/111, 379/112, 379/113, 379/114
• US Class Current: 455/445
• CPC Class Codes: H04L 45/00 Routing or path finding of packets in data switching networks routing or path finding in wireless networks H04W40/00
• CPC Class Codes: H04L 45/12 Shortest path evaluation
• CPC Class Codes: H04W 40/02 Communication route or path selection, e.g. power-based or shortest path routing
• CPC Class Codes: H04W 40/248 Connectivity information update
• CPC Class Codes: H04W 40/34 Modification of an existing route
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

A communication scheme storing section stores a communication route selecting scheme designated from an input section and communication information such as communication history, charge system and a correlation between an electric field intensity and a data communication error rate of each wireless communication system. A communication route selection control section 10 decides a wireless communication route to be used by referring to the communication information stored in the communication scheme storing section according to the communication route selecting scheme stored in the communication scheme storing section, and turns on a communication switch corresponding to the above decided wireless communication route among communication switches. Thus, according to the communication route selecting scheme designated by the user, the optimum wireless communication route corresponding to the wireless communication infrastructure characteristics is automatically selected.

Claims

1. An automatic selecting apparatus for selecting an optimum wireless communication route comprising:

communication control sections for executing data communication by way of wireless communication routes;

a communication information storing section or storing communication information concerning the wireless communication routes;

a scheme designating section for designating a communication route selecting scheme;

a scheme storing section for storing a communication route selecting scheme designated by said scheme designating section; and

a communication route selection control section for selecting an optimum wireless communication route by referring to the communication information of the wireless communication routes stored in said communication information storing section based on the designated communication route selecting scheme stored in said scheme storing section to thereby operate a communication control section corresponding to the selected optimum wireless communication route.

2. The automatic selecting apparatus for selecting an optimum wireless communication route as claimed in claim 1, wherein said communication information storing section stores a correlation between reception signal intensity information and a data communication error rate as one of the communication information, said communication route selection control section comprising:

intensity information detecting means for detecting reception signal intensity information of each wireless communication route based on a reception signal from each wireless communication route; and

error rate calculating means for obtaining a data communication error rate of each wireless communication route based on the reception signal intensity information of each wireless communication route detected by said intensity information detecting means and the stored correlation,

wherein when the designated communication route selecting scheme stored in said scheme storing section is "to use a wireless communication route having a smallest data communication error rate", the automatic selecting apparatus selects the wireless communication route having a smallest data communication error rate as obtained by said error rate calculating means as the optimum wireless communication route.

3. The automatic selecting apparatus for selecting an optimum wireless communication route as claimed in claim 1, wherein said communication information storing section stores a correlation between reception signal intensity information and a data communication error rate as one of the communication information, said communication route selection control section comprising:

intensity information detecting means for detecting reception signal intensity information of each wireless communication route based on a reception signal from each wireless communication route; and

communication time estimating means for estimating an actual time of communication including error correction of each wireless communication route by referring to the communication information using the data communication error rate of each wireless communication route based on the reception signal intensity information of each wireless communication route detected by said intensity information detecting means and the stored correlation,

wherein when the designated communication route selecting scheme stored in said scheme storing section is "to use a wireless communication route requiring a shortest time of communication", the automatic selecting apparatus selects the wireless communication route requiring a shortest time of communication as estimated by said communication time estimating means as the optimum wireless communication route.

4. The automatic selecting apparatus for selecting an optimum wireless communication route as claimed in claim 1, wherein said communication information storing section stores a correlation between reception signal intensity information and a data communication error rate and a charge system of each wireless communication system as the communication information, said communication route selection control section comprising:

intensity information detecting means for detecting reception signal intensity information of each wireless communication route based on a reception signal from each wireless communication route;

estimating means for estimating either one of an actual communication data amount and an actual time of communication including error correction of each wireless communication route by referring to the communication information using the data communication error rate of each wireless communication route based on the reception signal intensity information of each wireless communication route detected by said intensity information detecting means and the stored correlation; and

communication charge calculating means for calculating a charge for communication of each wireless communication route based on the actual communication data amount or the actual time of communication estimated by said estimating means and the stored charge system,

wherein when the designated communication route selecting scheme stored in said scheme storing section is "to use a wireless communication route costing a least expensive charge for communication", the automatic selecting apparatus selects the wireless communication route costing a least expensive charge for communication as calculated by said communication charge calculating means as the optimum wireless communication route.

5. The automatic s electing apparatus for selecting an optimum wireless communication route as claimed in claim 2, a further comprising:

an information processing section for obtaining an actual data communication error rate of a wireless communication route that has executed data communication based on a communication result from a communication control section that has executed data communication, and updating the correlation between the reception signal intensity information and the data communication error rate stored in said communication information storing section according to the obtained actual data communication error rate.

6. The automatic selecting apparatus for selecting an optimum wireless communication route as claimed in claim 3, further comprising:

an information processing section for obtaining an actual data communication error rate of a wireless communication route that has executed data communication based on a communication result from a communication control section that has executed data communication, and updating the correlation between the reception signal intensity information and the data communication error rate stored in said communication information storing section according to the obtained actual data communication error rate.

7. The automatic selecting apparatus for selecting an optimum wireless communication route as claimed in claim 4, further comprising:

an information processing section for obtaining an actual data communication error rate of a wireless communication route that has executed data communication based on a communication result from a communication control section that has executed data communication, and updating the correlation between the reception signal intensity information and the data communication error rate stored in said communication information storing section according to the obtained actual data communication error rate.

8. A method of automatically selecting an optimum wireless communication route comprising the steps of:

storing communication information characteristic of each wireless communication route in a first memory;

storing a designated communication route selecting scheme selected from a plurality of communication route selecting schemes in a second memory; and

selecting an optimum wireless communication route in accordance with the stored communication information of the wireless communication routes based on the stored designated communication route selecting scheme.

9. The method of automatically selecting an optimum wireless communication route of claim 8, wherein the communication information includes a correlation between reception signal intensity and data communication error rate, said step of selecting comprising:

determining reception signal intensity of each wireless communication route based on a reception signal received over each wireless communication route;

obtaining a data communication error rate of each wireless communication route based on the determined reception signal intensities of each wireless communication route and the correlation; and

selecting a wireless communication route having a smallest data communication error rate as the optimum wireless communication route based on the obtained data communication error rates when the stored designated communication route selecting scheme requires a wireless communication route having a smallest data communication error rate.

10. The method of automatically selecting an optimum wireless communication route of claim 9, further comprising:

obtaining an actual data communication error rate of a wireless communication route over which data communication has been executed based on the executed data communication; and

updating the correlation between the reception signal intensity and the data communication error rate in accordance with the obtained actual data communication error rate.

11. The method of automatically selecting an optimum wireless communication route of claim 8, wherein the communication information includes a correlation between reception signal intensity and data communication error rate, said step of selecting comprising:

determining reception signal intensity of each wireless communication route based on a reception signal received over each wireless communication route;

estimating an actual time of communication including error correction of each wireless communication route in accordance with the data communication error rate of each wireless communication route based on the determined reception signal intensity of each wireless communication route and the correlation; and

selecting a wireless communication route requiring a shortest time of communication as the optimum wireless communication route based on the estimated actual times of communication when the stored designated communication route selecting scheme requires a wireless communication route having a shortest time of communication.

12. The method of automatically selecting an optimum wireless communication route of claim 11, further comprising:

obtaining an actual data communication error rate of a wireless communication route over which data communication has been executed based on the executed data communication; and

updating the correlation between the reception signal intensity and the data communication error rate in accordance with the obtained actual data communication error rate.

13. The method of automatically selecting an optimum wireless communication route of claim 8, wherein the communication information includes a correlation between reception signal intensity and data communication error rate and a charge system of each wireless communication system, said step of selecting comprising:

determining reception signal intensity of each wireless communication route based on a reception signal received over each wireless communication route;

estimating either one of an actual communication data amount and an actual time of communication including error correction of each wireless communication route in accordance with the data communication error rate of each wireless communication route based on the determined reception signal intensity of each wireless communication route and the correlation;

calculating a charge for communication of each wireless communication route based on the estimated actual communication data amount or the estimated actual time of communication and the charge system; and

selecting a wireless communication route costing a least expensive charge for communication as the optimum wireless communication route based on the calculated charges for communication when the stored designated communication route selecting scheme requires a wireless communication route costing a least expensive charge for communication.

14. The method of automatically selecting an optimum wireless communication route of claim 13, further comprising:

obtaining an actual data communication error rate of a wireless communication route over which data communication has been executed based on the executed data communication; and

updating the correlation between the reception signal intensity and the data communication error rate in accordance with the obtained actual data communication error rate.

15. An automatic selecting apparatus for selecting an optimum wireless communication route comprising:

a plurality of communication control sections that execute data communication over respective wireless communication routes;

a selector that designates one of a plurality of communication route selecting schemes; and

a controller that selects one of the wireless communication routes as an optimum wireless communication route based on the designated communication route selecting scheme and that directs the respective communication control section to execute wireless communication over the optimum wireless communication route.

16. The automatic selecting apparatus of claim 15, wherein said controller detects reception signal intensity of each wireless communication route, determines data communication error rate of each wireless communication route based on the detected reception signal intensity and selects one of the wireless communication routes as the optimum wireless communication route in accordance with the determined data communication error rates and the designated communication route selecting scheme.

17. The automatic selecting apparatus of claim 15, wherein the designated communication route selecting means requires selection of a wireless communication route having a smallest data communication error rate as the optimum wireless communication route.

18. The automatic selecting apparatus of claim 15, wherein the designated communication route selecting means requires selection of a wireless communication route requiring a shortest time of communication as the optimum wireless communication route.

19. The automatic selecting apparatus of claim 15, wherein the designated communication route selecting means requires selection of a wireless communication route costing a least expensive charge for communication as the optimum wireless communication route.

20. An automatic selecting apparatus for selecting an optimum wireless communication route comprising:

a plurality of communication means for executing data communication over respective wireless communication routes;

selection means for designating one of a plurality of communication route selecting schemes; and

control means for selecting one of the wireless communication routes as an optimum communication route based on the designated communication route selecting scheme and for directing the respective communication means to execute wireless communication over the optimum wireless communication route.