초록 ▼

The present invention relates to a transmission-power control assisting apparatus, a radio apparatus, and a radio terminal apparatus. In order to stably and highly maintain service quality, the transmission-power control assisting apparatus includes: a transmission quality monitoring section monitor

The present invention relates to a transmission-power control assisting apparatus, a radio apparatus, and a radio terminal apparatus. In order to stably and highly maintain service quality, the transmission-power control assisting apparatus includes: a transmission quality monitoring section monitoring an error in transmission quality of any one of a plurality of radio channels on which transmission-power control is performed; a period determining section determining a predetermined period of time from a point in time of an opportunity to append a radio channel other than the specific radio channel to the plurality of radio channels; a desired-value setting section setting a desired value for the transmission power of the specific radio channel to a value larger than such a value as to suppress the error during the period of time; and a transmission-power update requesting section notifying the desired value to a transmitting end.

대표청구항 ▼

What is claimed is: 1. A transmission-power control assisting apparatus, comprising: a transmission quality monitoring section for monitoring an trot, relative to a predetermined threshold, in transmission quality of any one of a plurality of radio channels which includes a specific radio channel,

What is claimed is: 1. A transmission-power control assisting apparatus, comprising: a transmission quality monitoring section for monitoring an trot, relative to a predetermined threshold, in transmission quality of any one of a plurality of radio channels which includes a specific radio channel, said plurality of radio channels to be set transmission powers en bloc as a value relative to a transmission power of the specific radio channel under transmission-power control; a period determining section for determining a predetermined period of time from either a point in time of an opportunity to append a radio channel other than said specific radio channel to said plurality of radio channels, or from a point in time when the radio channel is allowed to be appended; a desired-value setting section for varying a desired value for the transmission power of said specific radio channel by a predetermined value to suppress said error during a period other than said predetermined period of time and by a value larger than said predetermined value during said predetermined period of time; and a transmission-power update requesting section for transmitting at a predetermined frequency a control signal for the transmission-power control to a transmitting end which performs transmission via said plurality of radio channels, based on relation between the desired value set by said desired-value setting section and reception quality of said plurality of radio channels. 2. The transmission-power control assisting apparatus according to claim 1, further comprising: a notifying section for determining, on said opportunity, a value higher than the desired value for the transmission power of said specific radio channel which is to be set at the point in time of the opportunity and for notifying the higher value to said transmitting end via any one of said plurality of radio channels; and a response discriminating section for discriminating a response transmitted from said transmitting end via any one of said plurality of radio channels and indicating that the transmission power of said specific radio channel is set to said higher value, wherein said transmission-power update requesting section for suspending the transmission of said control signal to said transmitting end when said response discriminating section discriminates said response. 3. The transmission-power control assisting apparatus according to claim 1, further comprising: a notifying section for determining, on said opportunity, a value higher than the desired value for the transmission power of said specific radio channel which is to be set at the point in time of the opportunity and for notifying die higher value to said transmitting end via any one of said plurality of radio channels; and a response judging section for judging whether or not the transmission power of said specific radio channel notified from said transmitting end via any one of said plurality of radio channels has a value equal to or higher than said higher value, wherein said transmission-power update requesting section for suspending the transmission of said control signal to said transmitting end when said judgment results to be true. 4. The transmission-power control assisting apparatus according to claim 1, wherein: said large value is set to a value exceeding a steady-state value, which is a value of the transmission power of the specific radio channel after the radio channel other than said specific radio channel is appended to said plurality of radio channels; and a length of said period is set to be short to such an extent that for the transmission powers of said plurality of radio channels do not exceed maximum transmission powers allowable for the transmission powers. 5. The transmission-power control assisting apparatus according to claim 1, wherein said desired-value setting section for setting the desired value for the transmission power of said specific radio channel to a larger value, the larger the value is for a channel capacity of the radio channel to be appended at said opportunity, or for a transmission rate to be secured within a range of the channel capacity. 6. The transmission-power control assisting apparatus according to claim 1, wherein said transmission-power update requesting section compares the error monitored by said transmission quality monitoring section with a predetermined upper limit value, and suspends said transmission when the error becomes lower than the upper limit value. 7. A transmission-power control assisting apparatus, comprising: a transmission quality monitoring section for monitoring an error, relative to a predetermined threshold, in transmission quality of any one of a plurality of radio channels which includes a specific radio channel, said plurality of radio channels so be set transmission powers en bloc as a value relative to a transmission power of the specific radio channel under transmission-power control; a period determining section for determining a period of time, which is longer, the smaller sad error is, from either a point in time of an opportunity to append a radio channel other than said specific radio channel to said plurality of radio channels, or from a point in time when the radio channel is allowed to be appended; a desired-value setting section for setting a desired value for the transmission power of said specific radio channel to such a value as to suppress said error during a period other than said period of time and to a value larger than said value during said period of time; and a transmission-power update requesting section for transmitting at a predetermined frequency a control signal for the transmission-power control to a transmitting end which performs transmission via said plurality of radio channels, based on relation between the desired value set by said desired-value setting section and reception quality of said plurality of radio channels. 8. The transmission-power control assisting apparatus according to claim 7, further comprising: a notifying section for determining, on said opportunity, a value higher than the desired value for the transmission power of said specific radio channel which is to he set at the point in time of the opportunity and for notifying the higher value to said transmitting end via anyone of said plurality of radio channels; and a response discriminating section for discriminating a response transmitted from said transmitting end via any one of said plurality of radio channels and indicating that the transmission power of said specific radio channel is set to said higher value, wherein said transmission-power update requesting section for suspending the transmission of said control signal to said transmitting end when said response discriminating section discriminates said response. 9. The transmission-power control assisting apparatus according to claim 7, further comprising: a notifying section for determining, on said opportunity, a value higher than the desired value for the transmission power of said specific radio channel which is to be set at the point in time of the opportunity and for notifying the higher value to said transmitting end via any one of said plurality of radio channels; and a response judging section for judging whether or nor the transmission power of said specific radio channel notified from said transmitting end via any one of said plurality of radio channels has a value equal to or higher than said higher value, wherein said transmission-power update requesting section for suspending the transmission of said control signal to said transmitting end when said judgment results to be true. 10. The transmission-power control assisting apparatus according to claim 7, wherein: said large value is set to a value exceeding a steady-state value, which is a value of the transmission power of the specific radio channel after the radio channel other than said specific radio channel is appended to said plurality of radio channels; and a length of said period is set to be short to such an extent that for the transmission powers of said plurality of radio channels do not exceed maximum transmission powers allowable for the transmission powers. 11. The transmission-power control assisting apparatus according to claim 7, wherein said desired-value sensing section for setting the desired value for the transmission power of said specific radio channel to a larger value, the larger the value is for a channel capacity of the radio channel to be appended at said opportunity, or for a transmission rare to be secured within a range of the channel capacity. 12. The transmission-power control assisting apparatus according to claim 7, wherein said transmission-power update requesting section compares the error monitored by said transmission quality monitoring section with a predetermined upper limit value, and suspends said transmission when the error becomes lower than the upper limit value. 13. A transmission-power control assisting apparatus, comprising: a transmission quality monitoring section for monitoring an error, relative to a predetermined threshold, in transmission quality of any one of a plurality of radio channels which includes a specific radio channel, said plurality of radio channels to be set transmission powers en bloc as a value relative to a transmission power of the specific radio channel under transmission-power control; a period determining section for determining a predetermined period of time from either a point in time of an opportunity to append a radio channel other than said specific radio channel to said plurality of radio channels or from a point in time when the radio channel is allowed to be appended; a desired-value setting section for setting a desired value for a proportion of the transmission power of said specific radio channel to a sum total of the transmission powers of said plurality of radio channels to such a value as to suppress said error during a period other than said period of time and to a value larger than said value during said period of time; and a transmission-power update requesting section for comparing a proportion with the desired value set by said desired-value setting section, the proportion being a proportion of a level of an arriving wave received via said specific radio channel to a sum total of levels of arriving waves received via said plurality of radio channels, and said transmission-power update requesting section transmitting at a predetermined frequency a control signal for the transmission-power control based on a difference between the proportion and the desired value to a transmitting end performing transmission via the plurality of radio channels. 14. The transmission-power control assisting apparatus according to claim 13, further comprising: a notifying section for determining, on said opportunity, the proportion of the transmission power of said specific radio channel to be at a value higher than a proportion of the transmission power of said specific radio channel which is to be set at the point in time of the opportunity, and for notifying the determined proportion to said transmitting end via any one of said plurality of radio channels; and a response discriminating section for discriminating a response which is transmitted from said transmitting end via any one of said plurality of radio channels and which indicates that the proportion of the transmission power of said specific radio channel is set to said higher value, wherein said transmission-power update requesting section for suspending the transmission of said control signal to said transmitting end when said response discrimination section discriminates said response. 15. The transmission-power control assisting apparatus according to claim 13, further comprising: a notifying section for determining, on said opportunity, a value higher than a proportion of the transmission power of said specific radio channel which is to be set at the point in time of the opportunity, and for notifying the higher value to said transmitting end via any one of said plurality of radio channels; and a response judging section for judging whether or not the proportion of transmission power of said specific radio channel notified from said transmitting end via any one of said plurality of radio channels has a value equal to said higher value, wherein said transmission-power update requesting section for suspending the transmission of said control signal to said transmitting end when said judgment results to be true. 16. The transmission-power control assisting apparatus according to claim 13, wherein: said large value is set to a value exceeding a steady-state value, which is a value of the proportion of the transmission power of the specific radio channel after the radio channel other than said specific radio channel is appended to said plurality of radio channels; and a length of said period is set to be short to such an extent that the transmission powers of said plurality of radio channels do not exceed maximum transmission powers allowable for the transmission powers. 17. The transmission-power control assisting apparatus according to claim 13, wherein said transmission-power update requesting section compares the error monitored by said transmission quality monitoring section with a predetermined upper limit value, and suspends said transmission when the error becomes lower than the upper limit value. 18. The transmission-power control assisting apparatus according to claim 13, wherein said desired-value setting section for setting the desired value for the proportion of transmission power of said specific radio channel to a larger value, the larger the value is for a channel capacity of the radio channel to be appended at said opportunity, or for a transmission rate to be secured within a range of the channel capacity. 19. A transmission-power control assisting apparatus, comprising: a transmission quality monitoring section for monitoring an error, relative to a predetermined threshold, in transmission quality of any one of a plurality of radio channels which includes a specific radio channel, said plurality of radio channels to be set transmission powers en bloc as a value relative to a transmission power of the specific radio channel under transmission-power control; a period determining section for determining a period of time, which is longer, the smaller said error is, from either a point in time of an opportunity to append a radio channel other than said specific radio channel to said plurality of radio channels, or from a point in time when the radio channel is allowed to be appended; a desired-value setting section for setting a desired value for a proportion of the transmission power of said specific radio channel to a sum total of the transmission powers of said plurality of radio channels to such a value as to suppress said error during a period other than said period of rime and to a value larger than said value during said period of time; and a transmission-power update requesting section for comparing a proportion with the desired value set by said desired-value setting section, the proportion being a proportion of a level of an arriving wave received via said specific radio channel to a sum total of levels of arriving waves received via said plurality of radio channels, and said transmission-power update requesting section transmitting at a predetermined frequency a control signal for the transmission-power control based on a difference between the proportion and the desired value to a transmitting end performing transmission via the plurality of radio channels. 20. The transmission-power control assisting apparatus according to claim 19, further comprising: a notifying section for determining, on said opportunity, the proportion of the transmission power of said specific radio channel to be at a value higher than a proportion of the transmission power of said specific radio channel which is to be set at the point in time of the opportunity, and for notifying the determined proportion to said transmitting end via any one of said plurality of radio channels; and a response discriminating section for discriminating a response which is transmitted from said transmitting end via any one of said plurality of radio channels and which indicates that the proportion of the transmission power of said specific radio channel is set to said higher value, wherein said transmission-power update requesting section for suspending the transmission of said control signal to said transmitting end when said response discriminating section discriminates said response. 21. The transmission-power control assisting apparatus according to claim 19, further comprising: a notifying section for determining, on said opportunity, a value higher than a proportion of the transmission power of said specific radio channel which is to he set at the point in time of the opportunity, and for notifying the higher value to said transmitting end via anyone of said plurality of radio channels; and a response judging section for judging whether or no; the proportion of transmission power of said specific radio channel notified item said transmitting end via any one of said plurality of radio channels has a value equal to said higher value, wherein said transmission-power update requesting section for suspending the transmission of said control signal to said transmitting end when said judgment results to be true. 22. The transmission-power control assisting apparatus according to claim 19, wherein: said large value is set to a value exceeding a steady-state value, which is a value of the proportion of the transmission power of the specific radio channel after the radio channel other than said specific radio channel is appended to said plurality of radio channels; and a length of said period is set to be short to such an extent that the transmission powers of said plurality of radio channels do not exceed maximum transmission powers allowable for the transmission powers. 23. The transmission-power control assisting apparatus according to claim 19, wherein said transmission-power update requesting section compares the error monitored by said transmission quality monitoring section with a predetermined upper limit value, and suspends said transmission when the error becomes lower than the upper limit value. 24. The transmission-power control assisting apparatus according to claim 19, wherein said desired-value setting section for setting the desired value for the proportion of the transmission power of said specific radio channel to a larger value, the larger rite value is for a channel capacity of the radio channel to be appended at said opportunity, or for a transmission rate to be secured within a range of the channel capacity.