Claims
- 1. An apparatus, comprising:
a first filter tuned to a first PCS band; a second filter to second PCS band; and a mode select switch to couple between said first filter and said second filter, the apparatus to operate in a first mode when said mode select switch is open, and the apparatus to operate in a second mode when said mode select switch is closed.
- 2. An apparatus as claimed in claim 1, the first and second filters to couple to an antenna.
- 3. An apparatus as claimed in claim 1, the first and second filters to couple directly to an antenna.
- 4. An apparatus as claimed in claim 1, one of the first mode and the second mode being a half-duplex mode, and another of the first mode and the second mode being a full-duplex mode.
- 5. An apparatus as claimed in claim 1, the first mode being an FDD mode.
- 6. An apparatus as claimed in claim 1, the second mode being a TDD mode.
- 7. An apparatus as claimed in claim 1, the first mode being an FDD mode, and the second mode being a TDD mode.
- 8. An apparatus as claimed in claim 1, further comprising a transmit switch to couple to said first filter, and a receive switch to couple to said second filter, said transmit switch and said receive switch to select between a transmit and a receive operation.
- 9. An apparatus, comprising:
a first filter tuned to a first PCS frequency band; a second filter tuned to a second PCS frequency band; a third filter tuned to a third frequency band; a first mode select switch disposed between said first filter and said third filter; and a second mode select switch disposed between said second filter and said third filter, the apparatus to operate in a first mode when said first mode switch and said second mode switch are open, and the apparatus to operate in a second mode when at least one of said first mode switch and said second mode switch is closed.
- 10. An apparatus as claimed in claim 9, said first filter, said second filter, and said third filter to couple to an antenna.
- 11. An apparatus as claimed in claim 9, said first filter, said second filter, and said third filter to couple directly to an antenna.
- 12. An apparatus as claimed in claim 9, one of the first mode and the second mode being a half-duplex mode, and another of the first mode and the second mode being a full-duplex mode.
- 13. An apparatus as claimed in claim 9, the first mode being an FDD mode.
- 14. An apparatus as claimed in claim 9, the second mode being a TDD mode.
- 15. An apparatus as claimed in claim 9, the first mode being an FDD mode, and the second mode being a TDD mode.
- 16. An apparatus as claimed in claim 9, further comprising a transmit switch to couple to said first filter, and a receive switch to couple to said second filter, said first and second switches to select between a transmit and a receive operation.
- 17. An apparatus as claimed in claim 9, the third frequency band being an unlicensed frequency band.
- 18. An apparatus as claimed in claim 9, the third frequency band being in between the first PCS frequency band and the second PCS frequency band.
- 19. A method, comprising:
operating an apparatus in a first mode when a first filter tuned to a first frequency band is uncoupled from a second filter tuned to a second frequency band; and operating the apparatus in a second mode when the first filter and the second filter are coupled.
- 16. A method as claimed in claim 15, the first frequency band being a first PCS frequency band, and the second frequency band being a second PCS frequency band.
- 17. A method as claimed in claim 15, one of the first mode and the second mode being a half-duplex mode, and another of the first mode and the second mode being a full duplex mode.
- 18. A method as claimed in claim 15, the first mode being an FDD mode.
- 19. A method as claimed in claim 15, the second mode being a TDD mode.
- 20. A method as claimed in claim 15, the first mode being an FDD mode, and the second mode being a TDD mode.
- 21. A method as claimed in claim 15, further comprising coupling a third filter tuned to a third frequency band to at least one of the first filter and the second filter when operating the apparatus in the second mode.
- 22. A method as claimed in claim 15, further comprising coupling a third filter tuned to a third frequency band to both the first filter and the second filter when operating the apparatus in the second mode.
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] The present invention is a continuation of U.S. application Ser. No. 09/780,948 filed Feb. 9, 2001, which is a continuation of U.S. application Ser. No. 09/075,415 filed May 8, 1998 (now U.S. Pat. No. 6,212,172).
Continuations (2)
|
Number |
Date |
Country |
Parent |
09780948 |
Feb 2001 |
US |
Child |
10192363 |
Jul 2002 |
US |
Parent |
09075415 |
May 1998 |
US |
Child |
09780948 |
Feb 2001 |
US |