Transmission power control method, mobile phone, base station, and recording medium
First Claim
1. A transmission power control method for a mobile station simultaneously connected to a plurality of base stations, comprising:
- a receiving step for receiving a transmission power control signal from each of said plurality of base stations in said mobile station;
a reliability level acquiring step for acquiring a reliability level for each of said plurality of base stations;
an object signal acquiring step for determining an object signal from said reliability level acquired in said reliability level acquiring step and said plurality of transmission power control signals received in said receiving step;
a control content deciding step for deciding a control content of the transmission power of said mobile station based on said object signal determined in said object signal acquiring step; and
a control step for controlling the transmission power of said mobile station in accordance with the control content decided in said control content deciding step.
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Accused Products
Abstract
A mobile station according to the present invention that is capable of connecting simultaneously to a plurality of base stations comprises a reception radio portion and TPC bit detecting portions, for receiving and detecting TPC bits (transmission power control signals) from the plurality of base stations during soft handover; a combining portion, for combining the detected TPC bits to determine a combination signal; and a transmission power control deciding portion, for controlling the transmission power of the mobile station based on the combination signal determined by the combining portion. A method according to the present invention governs use of the mobile station hereof.
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Citations
42 Claims
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1. A transmission power control method for a mobile station simultaneously connected to a plurality of base stations, comprising:
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a receiving step for receiving a transmission power control signal from each of said plurality of base stations in said mobile station;
a reliability level acquiring step for acquiring a reliability level for each of said plurality of base stations;
an object signal acquiring step for determining an object signal from said reliability level acquired in said reliability level acquiring step and said plurality of transmission power control signals received in said receiving step;
a control content deciding step for deciding a control content of the transmission power of said mobile station based on said object signal determined in said object signal acquiring step; and
a control step for controlling the transmission power of said mobile station in accordance with the control content decided in said control content deciding step. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 41)
a weighting step for weighting the transmission power control signals received in said receiving step according to said plurality of reliability levels acquired in said reliability level acquiring step;
wherein said object signal acquiring step includes generating said object signal by combining the plurality of transmission power control signals weighted in said weighting step.
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6. A transmission power control method according to claim 2, comprising:
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a weighting step for weighting the transmission power control signals received in said receiving step according to said plurality of reliability levels acquired in said reliability level acquiring step;
wherein said object signal acquiring step includes generating said object signal by combining the plurality of transmission power control signals weighted in said weighting step.
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7. A transmission power control method according to claim 3, comprising:
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a weighting step for weighting the transmission power control signals received in said receiving step according to said plurality of reliability levels acquired in said reliability level acquiring step;
wherein said object signal acquiring step includes generating said object signal by combining the plurality of transmission power control signals weighted in said weighting step.
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8. A transmission power control method according to claim 4, comprising:
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a weighting step for weighting the transmission power control signals received in said receiving step according to said plurality of reliability levels acquired in said reliability level acquiring step;
wherein said object signal acquiring step includes generating said object signal by combining the plurality of transmission power control signals weighted in said weighting step.
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9. A transmission power control method according to claim 1, wherein said object signal acquiring step includes selecting one signal from among the transmission power control signals received in said receiving step based on said plurality of reliability levels acquired in said reliability level acquiring step, and taking the selected signal as said object signal.
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10. A transmission power control method according to claim 2, wherein said object signal acquiring step includes selecting one signal from among the transmission power control signals received in said receiving step based on said plurality of reliability levels acquired in said reliability level acquiring step, and taking the selected signal as said object signal.
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11. A transmission power control method according to claim 3, wherein said object signal acquiring step includes selecting one signal from among the transmission power control signals received in said receiving step based on said plurality of reliability levels acquired in said reliability level acquiring step, and taking the selected signal as said object signal.
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12. A transmission power control method according to claim 4, wherein said object signal acquiring step includes selecting one signal from among the transmission power control signals received in said receiving step based on said plurality of reliability levels acquired in said reliability level acquiring step, and taking the selected signal as said object signal.
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13. A transmission power control method according to claim 1, wherein said control content deciding step includes comparing said object signal determined in said object signal acquiring step with two preset threshold values, and selecting and determining the control content of said mobile station from among the three stages of an increase, maintenance or decrease of the transmission power based on the results of the comparison.
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14. A transmission power control method according to claim 2, wherein said control content deciding step includes comparing said object signal determined in said object signal acquiring step with two preset threshold values, and selecting and determining the control content of said mobile station from among the three stages of an increase, maintenance or decrease of the transmission power based on the results of the comparison.
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15. A transmission power control method according to claim 3, wherein said control content deciding step includes comparing said object signal determined in said object signal acquiring step with two preset threshold values, and selecting and determining the control content of said mobile station from among the three stages of an increase, maintenance or decrease of the transmission power based on the results of the comparison.
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16. A transmission power control method according to claim 4, wherein said control content deciding step includes comparing said object signal determined in said object signal acquiring step with two preset threshold values, and selecting and determining the control content of said mobile station from among the three stages of an increase, maintenance or decrease of the transmission power based on the results of the comparison.
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17. A transmission power control method according to claim 1, wherein control is performed in said control content deciding step by changing the transmission power of said mobile station by a control amount in accordance with said object signal determined in said object signal acquiring step.
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18. A transmission power control method according to claim 2, wherein control is performed in said control content deciding step by changing the transmission power of said mobile station by a control amount in accordance with said object signal determined in said object signal acquiring step.
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19. A transmission power control method according to claim 3, wherein control is performed in said control content deciding step by changing the transmission power of said mobile station by a control amount in accordance with said object signal determined in said object signal acquiring step.
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20. A transmission power control method according to claim 4, wherein control is performed in said control content deciding step by changing the transmission power of said mobile station by a control amount in accordance with said object signal determined in said object signal acquiring step.
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41. A base station for performing a transmission power control method according to claim 3, comprising:
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parameter acquiring means for acquiring said parameter with respect to said mobile station based on an upward signal from said mobile station; and
transmission means for transmitting said parameter acquired by said parameter acquiring means to said mobile station.
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21. A mobile station capable of simultaneously connecting with a plurality of base stations, comprising:
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receiving means for receiving a transmission power control signal from each of said plurality of base stations;
reliability level acquiring means for acquiring a reliability level with respect to each of said plurality of base stations;
object signal acquiring means for determining an object signal based on said plurality of transmission power control signals received from said receiving means and said plurality of reliability levels acquired from said reliability level acquiring means;
control content deciding means for deciding a control content of the transmission power of said mobile station based on said object signal determined by said object signal acquiring means; and
control means for controlling the transmission power in accordance with said control content decided by said control content deciding means. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
weighting means for weighting each transmission power control signal received by said receiving means by the reliability level of a corresponding base station;
wherein said object signal acquiring means generates said object signal by combining the plurality of transmission control signals weighted by said weighting means.
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26. A mobile station according to claim 22, comprising:
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weighting means for weighting each transmission power control signal received by said receiving means by the reliability level of a corresponding base station;
wherein said object signal acquiring means generates said object signal by combining the plurality of transmission control signals weighted by said weighting means.
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27. A mobile station according to claim 23, comprising:
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weighting means for weighting each transmission power control signal received by said receiving means by the reliability level of a corresponding base station;
wherein said object signal acquiring means generates said object signal by combining the plurality of transmission control signals weighted by said weighting means.
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28. A mobile station according to claim 24, comprising:
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weighting means for weighting each transmission power control signal received by said receiving means by the reliability level of a corresponding base station;
wherein said object signal acquiring means generates said object signal by combining the plurality of transmission control signals weighted by said weighting means.
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29. A mobile station according to claim 21, wherein said object signal acquiring means selects one from among said plurality of transmission power control signals to be said object signal.
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30. A mobile station according to claim 22, wherein said object signal acquiring means selects one from among said plurality of transmission power control signals to be said object signal.
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31. A mobile station according to claim 23, wherein said object signal acquiring means selects one from among said plurality of transmission power control signals to be said object signal.
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32. A mobile station according to claim 24, wherein said object signal acquiring means selects one from among said plurality of transmission power control signals to be said object signal.
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33. A mobile station according to claim 21, wherein said control content deciding means compares said object signal determined by said object signal acquiring means with two preset threshold values, and selects and decides from among the three stages of increase, maintenance or decrease of the transmission power as said control content based on the results of this comparison.
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34. A mobile station according to claim 22, wherein said control content deciding means compares said object signal determined by said object signal acquiring means with two preset threshold values, and selects and decides from among the three stages of increase, maintenance or decrease of the transmission power as said control content based on the results of this comparison.
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35. A mobile station according to claim 23, wherein said control content deciding means compares said object signal determined by said object signal acquiring means with two preset threshold values, and selects and decides from among the three stages of increase, maintenance or decrease of the transmission power as said control content based on the results of this comparison.
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36. A mobile station according to claim 24, wherein said control content deciding means compares said object signal determined by said object signal acquiring means with two preset threshold values, and selects and decides from among the three stages of increase, maintenance or decrease of the transmission power as said control content based on the results of this comparison.
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37. A mobile station according to claim 21, wherein said control content deciding means takes, as the control content, control performed by changing the transmission power by a control amount in accordance with said object signal determined by said object signal acquiring means.
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38. A mobile station according to claim 22, wherein said control content deciding means takes, as the control content, control performed by changing the transmission power by a control amount in accordance with said object signal determined by said object signal acquiring means.
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39. A mobile station according to claim 23, wherein said control content deciding means takes, as the control content, control performed by changing the transmission power by a control amount in accordance with said object signal determined by said object signal acquiring means.
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40. A mobile station according to claim 24, wherein said control content deciding means takes, as the control content, control performed by changing the transmission power by a control amount in accordance with said object signal determined by said object signal acquiring means.
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42. A recording medium containing a program to be run in a mobile station simultaneously connected to a plurality of base stations, the program comprising:
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a receiving step for receiving a transmission power control signal form each of said plurality of base stations;
a reliability level acquiring step for acquiring a reliability level with respect to each of said plurality of base stations;
an object signal acquiring step for determining an object signal from said reliability levels acquired in said reliability level acquiring step and said plurality of transmission power control signals received in said receiving step;
a control content deciding step for deciding a control content of the transmission power of said mobile station based on said object signal determined in said object signal acquiring step; and
a control step for controlling the transmission power of said mobile station in accordance with said control decided by said control content deciding step.
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Specification