1. A method of operating a communication system, comprising:
receiving a first communication signal that is assigned to a first frequency band;
frequency translating the first communication signal to a second communication signal that falls within an available bandwidth in a second frequency band, wherein the first and second frequency bands do not overlap; and
transmitting the second communication signal.
2. The method of claim 1, further comprising:
scheduling the first frequency band for the first communication signal based upon the available bandwidth in the second frequency band.
3. The method of claim 1, further comprising:
receiving a third communication signal that falls within the available bandwidth in the second frequency band;
frequency translating the third communication signal to a fourth communication signal that falls within the first frequency band; and
transmitting the fourth communication signal.
4. The method of claim 3, wherein the second frequency band is a cellular band and the first and fourth communication signals are IEEE 802.16 standard compliant orthogonal frequency division multiplex (OFDM) signals.
5. The method of claim 4, wherein the orthogonal frequency division multiplex (OFDM) signals are scalable.
6. The method of claim 1, further comprising:
bandpass filtering, prior to the frequency translating, the first communication signal; and
bandpass filtering, prior to the transmitting, the second communication signal.
7. The method of claim 3, further comprising:
bandpass filtering, prior to frequency translating, the third communication signal; and
bandpass filtering, prior to the transmitting, the fourth communication signal.
8. An access adapter for a communication system, the access adapter comprising:
a first converter configured to receive a first communication signal that falls within a first frequency band, frequency translate the first communication signal to a second communication signal that falls within a first portion of a second frequency band, and transmit the second communication signal, wherein the first and second frequency bands do not overlap; and
a second converter configured to receive a third communication signal that falls within the first portion of the second frequency band, frequency translate the third communication signal to a fourth communication signal that falls within the first frequency band, and transmit the fourth communication signal.
9. The access adapter of claim 8, wherein the first converter further comprises:
a first bandpass filter configured to substantially pass frequencies within the first frequency band;
a first mixer coupled to an output of the first bandpass filter, wherein the first mixer is configured to mix the first communication signal to the second communication signal; and
a second bandpass filter coupled to an output of the first mixer, wherein the second bandpass filter is configured to substantially pass frequencies within the second frequency band.
10. The access adapter of claim 9, wherein the second converter further comprises:
a third bandpass filter configured to substantially pass frequencies within the second frequency band;
a second mixer coupled to an output of the third bandpass filter, wherein the second mixer is configured to mix the third communication signal to the fourth communication signal; and
a fourth bandpass filter coupled to an output of the second mixer, wherein the fourth bandpass filter is configured to substantially pass frequencies within the first frequency band.
11. The access adapter of claim 8, wherein the second frequency band is a cellular band and the first and fourth communication signals are IEEE 802.16 standard compliant orthogonal frequency division multiplex (OFDM) signals.
12. The access adapter of claim 11, wherein the orthogonal frequency division multiplex (OFDM) signals are scalable.
13. The access adapter of claim 11, wherein the first and fourth communication signals are IEEE 802.16 standard compliant communication signals.
14. The access adapter of claim 8, wherein the first converter further comprises:
a first antenna coupled to an input of the first bandpass filter; and
a second antenna coupled to an output of the second bandpass filter.
15. The access adapter of claim 9, wherein the first converter further comprises:
a third antenna coupled to an input of the third bandpass filter; and
a fourth antenna coupled to an output of the fourth bandpass filter.
16. A communication system, comprising:
a first wireless device configured to communicate over a first frequency band;
a first adapter in communication with the first wireless device, wherein the first adapter is configured to receive a first communication signal that falls within the first frequency band from the first wireless device, frequency translate the first communication signal to a second communication signal that falls within a first portion of a second frequency band, and transmit the second communication signal, wherein the first and second frequency bands do not overlap;
a second adapter in communication with the first adapter, wherein the second adapter is configured to receive the second communication signal, frequency translate the second communication signal to a third communication signal that falls within the first frequency band, and transmit the third communication signal; and
a second wireless device configured to communicate over the first frequency band, wherein the second wireless device is in communication with the second adapter.
17. The communication system of claim 16, further comprising:
an antenna; and
a filter coupled between the antenna and the second adapter, wherein the filter is configured to substantially pass frequencies within the first portion of the second frequency band to the second wireless device, and wherein the first wireless device is a subscriber station and the second wireless device is a first base station.
18. The communication system of claim 17, further comprising:
a second base station coupled to the filter, wherein the second base station is configured to communicate over a second portion of the second frequency band and the filter is further configured to substantially pass frequencies within the second portion of the second frequency band to the second base station.
19. The communication system of claim 16, wherein the second frequency band is a cellular band and the first and third communication signals are orthogonal frequency division multiplex (OFDM) signals.
20. The communication system of claim 19, wherein the orthogonal frequency division multiplex (OFDM) signals are scalable and are IEEE 802.16 standard compliant communication signals.
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. A rotor nozzle, in particular for high pressure cleaning devices, having a nozzle housing (11) which has a swirl chamber (17) between an inflow opening (13) for a fluid, in particular water, and a discharge opening (15), with a rotor (21) inclined with respect to a longitudinal axis (19) during operation being supported at its front end at a bearing (23), in particular at a cup-shaped bearing, in said swirl chamber and with the rotor being able to be driven to make a rotating movement around the longitudinal axis (19) by fluid flowing into the swirl chamber (17),
characterized in that
an adjustment device (25) is positioned in front of the swirl chamber (17) for the speed regulation of the rotor (21) and forces the inflowing fluid to make a rotating movement around the longitudinal axis (19) for the generation of a rotating fluid field before the transition into the swirl chamber (17); and
in that the rotating fluid field is disrupted more or less pronouncedly on the transition into the swirl chamber (17) in dependence on the position of the adjustment device (25).
2. A rotor nozzle in accordance with claim 1, characterized in that a compulsory deflection of the fluid flow is provided for the disruption of the rotating fluid field.
3. A rotor nozzle in accordance with claim 1, characterized in that the transition into the swirl chamber (17) is formed by a ring passage (27), in particular a gap-shaped ring passage, and a relief opening (29, 31).
4. A rotor nozzle in accordance with claim 1, characterized in that the size of the ring passage (27) is adjustable.
5. A rotor nozzle in accordance with claim 1, characterized in that at least one ring passage (33) for the inflowing fluid is provided for the generation of the rotating fluid field before the transition into the swirl chamber (17).
6. A rotor nozzle in accordance with claim 5, characterized in that the ring passage (33) is bounded by the adjustment device (25) and the inner wall of the nozzle housing (11).
7. A rotor nozzle in accordance with claim 1, characterized in that the adjustment device (25) and the inner wall of the nozzle housing (11) have cooperating cam profiles (39, 41) which can be moved relative to one another by adjustment of the adjustment device (25) either to enlarge or reduce a ring passage (27) disposed after the ring passage (33).
8. A rotor nozzle in accordance with claim 1, characterized in that the adjustment device (25) can be screwed into the nozzle housing (11) and the speed of the rotor (21) can be regulated by varying the screw-in depth of the adjustment device (25).
9. A rotor nozzle in accordance with claim 1, characterized in that the adjustment device is configured as a stopper (25) which can be screwed into the nozzle housing (11), to which a fluid supply line can be connected and which has an inflow space (35) into which the supplied fluid first moves and from which the fluid then moves via a drive bore (37), in particular a drive bore oriented radially or tangentially to the longitudinal axis, into a ring passage (33) for the generation of the rotating fluid field.