Mobile station having short-range radio function and power consumption reduction method therefor

1. A mobile station with a short-range radio function including a radio section which communicates with a base station and a short-range radio section for performing short-range radio communication independently of said radio section, comprising:

control means for shifting the short-range radio function of said short-range radio section to a low power consumption mode in accordance with a state of short-range radio communication without receiving an external command from said base station, and wherein all short-range radio signals are stopped.

2. A mobile station with a short-range radio function including a radio section which communicates with a base station and a short-range radio section for performing short-range radio communication independently of said radio section and having a power saving mode of turning off a backlight mounted on a display portion when no operation is performed by a user for not less than a predetermined period of time, comprising:

control means for shifting the short-range radio function of said short-range radio section without receiving an external command from said base station, to a low power consumption mode in synchronism with the power saving mode and wherein all short-range radio signals are stopped.

3. A folding mobile station with a short-range radio function including a radio section which communicates with a base station and a short-range radio section for performing short-range radio communication independently of said radio section, comprising:

control means for shifting the short-range radio function of said short-range radio section without receiving an external command from said base station, to a low power consumption mode when said short-range radio function is not used, and wherein all short-range radio signals are stopped.

4. A station according to claim 1 , wherein said control means shifts the short-range radio function of said short-range radio section to the low power consumption mode when no data is exchanged by short-range radio communication for not less than a predetermined period of time.

5. A station according to claim 2 , further comprising control means for, when operation is done by the user in the power saving mode, restoring the short-range radio function of said short-range radio section from the low power consumption mode upon execution of control for restoration from the power saving mode to a normal mode in which the backlight is turned on.

6. A station according to claim 3 , further comprising control means for restoring the short-range radio function of said short-range radio section from the low power consumption mode when the short-range radio function is used.

7. A station according to claim 1 , wherein the low power consumption mode is a mode of stopping supply of power to said short-range radio section.

8. A station according to claim 2 , wherein the low power consumption mode is a mode of stopping supply of power to said short-range radio section.

9. A station according to claim 3 , wherein the low power consumption mode is a mode of stopping supply of power to said short-range radio section.

10. A station according to claim 4 , wherein the low power consumption mode is a mode of stopping supply of power to said short-range radio section.

11. A station according to claim 1 , wherein the low power consumption mode is a mode of intermittently stopping supply of power to said short-range radio section.

12. A station according to claim 2 , wherein the low power consumption mode is a mode of intermittently stopping supply of power to said short-range radio section.

13. A station according to claim 3 , wherein the low power consumption mode is a mode of intermittently stopping supply of power to said short-range radio section.

14. A station according to claim 4 , wherein the low power consumption mode is a mode of intermittently stopping supply of power to said short-range radio section.

15. A power consumption reducing method for a mobile station with a short-range radio function including a radio section which communicates with a base station and a short-range radio section for performing short-range radio communication independently of the radio section,

wherein power consumption is reduced by shifting the short-range radio function of the short-range radio section to a low power consumption mode in accordance with a state of short-range radio communication without receiving an external command from said base station, and wherein all short-range radio signals are stopped.

16. A power consumption reducing method for a mobile station with a short-range radio function including a radio section which communicates with a base station and a short-range radio section for performing short-range radio communication independently of the radio section and having a power saving mode of turning off a backlight mounted on a display portion when no operation is performed by a user for not less than a predetermined period of time,

wherein power consumption is reduced by shifting the short-range radio function of the short-range radio section without receiving an external command from said base station, to a low power consumption mode in synchronism with the power saving mode and wherein all short-range radio signals are stopped.

17. A power consumption reducing method for a folding mobile station with a short-range radio function including a radio section which communicates with a base station and a short-range radio section for performing short-range radio communication independently of the radio section,

wherein power consumption is reduced by shifting the short-range radio function of the short-range radio section without receiving an external command from said base station, to a low power consumption mode when the short-range radio function is not used and wherein all short-range radio signals are stopped.

18. A method according to claim 15 , wherein power consumption is reduced by shifting the short-range radio function of the short-range radio section to the low power consumption mode when no data is exchanged by short-range radio communication for not less than a predetermined period of time.

19. A method according to claim 15 , wherein the low power consumption mode is a mode of stopping supply of power to the short-range radio section.

20. A method according to claim 16 , wherein the low power consumption mode is a mode of stopping supply of power to the short-range radio section.

21. A method according to claim 17 , wherein the low power consumption mode is a mode of stopping supply of power to the short-range radio section.

22. A method according to claim 18 , wherein the low power consumption mode is a mode of stopping supply of power to the short-range radio section.

23. A method according to claim 15 , wherein the low power consumption mode is a mode of intermittently stopping supply of power to the short-range radio section.

24. A method according to claim 16 , wherein the low power consumption mode is a mode of intermittently stopping supply of power to the short-range radio section.

25. A method according to claim 17 , wherein the low power consumption mode is a mode of intermittently stopping supply of power to the short-range radio section.

26. A method according to claim 18 , wherein the low power consumption mode is a mode of intermittently stopping supply of power to the short-range radio section.