1: A radio reception apparatus to be used in a radio communication system where communication is performed by using a plurality of resources defined in a frequency-time domain, the radio reception apparatus comprising:
a resource information acquiring section which is configured to acquire distribution resource information for a second reference signal when the second reference signal for a second communication system is transmitted from a radio transmission apparatus in addition to transmitting a first reference signal for a first communication system, in a case where distributed type resources in which a resource unit defined in the frequency-time domain is divided in a time direction and distributedly allocated at predetermined frequency intervals are used as resources for the second reference signal;
a receiver which is configured to receive a signal containing the second reference signal transmitted from the transmission apparatus;
a channel quality measuring section which is configured to measure a channel quality of a transmission channel by using the second reference signal that is allocated in the distributed type resources on the basis of the distribution resource information; and
a feedback information transmitter which is configured to transmit feedback information containing channel quality information indicative of the channel quality, to the transmission apparatus.
2: The radio reception apparatus according to claim 1, wherein
resources in which the first and second half slots into which the resource unit defined in the frequency-time domain is divided in the time direction are set, and the first and second half slots are hopped in the frequency direction and distributedly allocated at predetermined frequency intervals are used as the distributed type resources, and
the channel quality measuring section is configured to measure the channel quality by means of the second reference signal which is transmitted while being allocated in a part of the distributed type resources.
3: The radio reception apparatus according to claim 1, wherein
the first communication system is LTE (Long Term Evolution), the second communication system is LTE-A (LTE-advanced), and DVRB (Distributed Virtual Resource Block) resources which are distribution resources defined by LTE are used as the distributed type resources, wherein the DVRB resources are one in which first and second half slots that are divided from each other in the time direction are hopped in the frequency direction and distributedly allocated at predetermined frequency intervals, and
the channel quality measuring section is configured to measure the channel quality by means of the second reference signal which is transmitted while being allocated in a part of the DVRB resources.
4: The radio reception apparatus according to claim 3, wherein
the channel quality measuring section is configured to measure the channel quality by means of the second reference signal which is transmitted while being allocated in a resource with a specific resource ID of the DVRB resources.
5: The radio reception apparatus according to claim 3, wherein
the channel quality measuring section is configured to measure the channel quality by means of the second reference signal which is transmitted while being allocated in the second half slot of the DVRB resources.
6: A radio transmission apparatus to be used in a radio communication system where communication is performed by using a plurality of resources defined in a frequency-time domain, the radio transmission apparatus comprising:
a resource setting section which is configured to perform resources setting used in a case where distributed type resources in which a resource unit defined in the frequency-time domain is divided in a time direction and distributedly allocated at predetermined frequency intervals are used as resources for a second reference signal when the second reference signal for a second communication system is transmitted to a radio reception apparatus in addition to transmitting a first reference signal for a first communication system;
a reference signal generator which is configured to generate and allocates the second reference signal in the distributed type resources on the basis of the resource setting for the second reference signal;
a transmitter which is configured to transmit a signal containing the second reference signal to the reception apparatus;
a feedback information acquiring section which is configured to receive feedback information informed from the reception apparatus, and acquire channel quality information contained in the feedback information; and
a scheduler which is configured to perform scheduling containing at least one of frequency scheduling and an adaptive MCS (Modulation and Coding Scheme) control related to a transmission signal on the basis of the channel quality information.
7: The radio transmission apparatus according to claim 6, wherein
resources in which the first and second half slots into which the resource unit defined in the frequency-time domain is divided in the time direction are set, and the first and second half slots are hopped in the frequency direction and distributedly allocated at predetermined frequency intervals are used as the distributed type resources, and
the resource setting section is configured to perform resource setting in which the second reference signal is allocated in a part of the distributed type resources.
8: The radio transmission apparatus according to claim 6, wherein
the first communication system is LTE, the second communication system is LTE-A, and DVRB resources which are distribution resources defined by LTE are used as the distributed type resources, wherein the DVRB resources are one in which first and second half slots that are divided from each other in the time direction are hopped in the frequency direction are distributedly allocated at predetermined frequency intervals, and
the resource setting section is configured to perform resource setting in which the second reference signal is allocated in a part of the DVRB resources.
9: The radio transmission apparatus according to claim 8, wherein
the resource setting section is configured to perform resource setting in which the second reference signal is allocated in a resource with a specific resource ID of the DVRB resources.
10: The radio transmission apparatus according to claim 8, wherein
the resource setting section is configured to perform resource setting in which the second-reference signal is allocated in the second half slot of the DVRB resources.
11: A radio communication method in a radio reception apparatus which performs communication by using a plurality of resources defined in a frequency-time domain, the radio communication method comprising the steps of:
acquiring distribution resource information for a second reference signal when the second reference signal for a second communication system is transmitted from a radio transmission apparatus in addition to transmitting a first reference signal for a first communication system, in a case where distributed type resources in which a resource unit defined in the frequency-time domain is divided in a time direction and distributedly allocated at predetermined frequency intervals are used as resources for the second reference signal;
receiving a signal containing the second reference signal transmitted from the transmission apparatus;
measuring a channel quality of a transmission channel by using the second reference signal that is allocated in the distributed type resources on the basis of the distribution resource information; and
transmitting feedback information containing channel quality information indicative of the channel quality, to the transmission apparatus.
12: A radio communication method in a radio transmission apparatus which performs communication by using a plurality of resources defined in a frequency-time domain, the radio communication method comprising the steps of:
performing resources setting used in a case where distributed type resources in which a resource unit defined in the frequency-time domain is divided in a time direction and distributedly allocated at predetermined frequency intervals are used as resources for a second reference signal when the second reference signal for a second communication system is transmitted to a radio reception apparatus in addition to transmitting a first reference signal for a first communication system;
generating and allocating the second reference signal in the distributed type resources on the basis of the resource setting for the second reference signal;
transmitting a signal containing the second reference signal to the reception apparatus;
receiving feedback information informed from the reception apparatus, and acquire channel quality information contained in the feedback information; and
performing scheduling containing at least one of frequency scheduling and an adaptive MCS (Modulation and Coding Scheme) control related to a transmission signal on the basis of the channel quality information.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. Furnace, for an electro thermal atomization device of an atom absorption spectrometer, with a heatable heat duct inside which there is mounted a trial platform, which has a platform length and is essentially basin-shaped with radially inward-turned rims, at least at its free ends, each of the rims having a rim thickness and a rim height, characterized in that the trial platform has a geometric structure stabilization device that reduces the ratio of effective volume of the trial platform to a rim volume occupied by the rims of the trial platform.
2. Furnace in accordance with claim 1, characterized in that the furnace is a heated graphite atomizer that, is transversally heatable.
3. Furnace in accordance with claim 1, characterized in that the trial platform is integrated in the heat duct.
4. Furnace in accordance with claim 3, characterized in that the trial platform is formed of graphite as base material, on which an overcoating is applied pyrolytically.
5. Furnace in accordance with claim 4, characterized in that the geometric structure stabilization device is formed by a reduction of the platform length.
6. Furnace in accordance with claim 5, characterized in that the reduction of the platform length is in the range from 10 to 40 percent.
7. Furnace in accordance with claim 4, characterized in that the geometric structure stabilization device is formed by an increase in the rim thickness.
8. Furnace in accordance with claim 7, characterized in that the increase in rim thickness is in the range between 10 and 50 percent.
9. Furnace in accordance with claim 4, characterized in that the geometric structure stabilization device is formed by an increase in the rim height of the trial platform.
10. Furnace in accordance with claim 9, characterized in that the increase in the rim height is in the range between 40 and 250 percent.
11. Furnace in accordance with claim 10, characterized in that the geometric structure stabilization device simultaneously includes a reduction of the platform length andor an increase in the rim thickness andor an increase in the rim height.
12. Furnace in accordance with claim 11, characterized in that the increase in the rim thickness andor the increase in the rim height is found at least on one end of the trial platform.
13. Furnace in accordance with claim 5, characterized in that the reduction of the platform length is in the range from 15 to 35 percent.
14. Furnace in accordance with claim 5, characterized in that the reduction of the platform length is in the range from 20 to 35 percent.
15. Furnace in accordance with claim 8, characterized in that the increase in rim thickness is in the range between 25 and 45 percent.
16. Furnace in accordance with claim 8, characterized in that the increase in rim thickness is in the range between 30 and 40 percent.
17. Furnace in accordance with claim 10, characterized in that the increase in rim height is in the range between 80 and 200 percent.
18. Furnace in accordance with claim 10, characterized in that the increase in rim height is in the range between 100 and 150 percent.