Multi-mode-multi-band wireless transceiver
First Claim
1. A multi-mode/multi-band wireless transceiver comprising:
- a tunable duplexer including transmission and reception channel filters of which transmission and reception channel filtering frequencies respectively are controlled by an external element; and
a control portion for controlling the transmission and reception channel filtering frequencies to correspond to transmission and reception channels of a current service band.
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Accused Products
Abstract
Disclosed is a multi-mode/multi-band wireless transceiver. The multi-mode/multi-band wireless transceiver includes a tunable duplexer including transmission and reception channel filters of which transmission and reception channel filtering frequencies respectively are controlled by an external element; and a control portion for controlling the transmission and reception channel filtering frequencies to correspond to transmission and reception channels of a current service band. Thus, a use of a RF SAW filter is unnecessary, while it is possible to support the multi-mode/multi-band using a tunable duplexer. Therefore, the number of parts and volume of the transceiver can be reduced, and it is possible to weaken a specification of an RF system.
51 Citations
21 Claims
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1. A multi-mode/multi-band wireless transceiver comprising:
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a tunable duplexer including transmission and reception channel filters of which transmission and reception channel filtering frequencies respectively are controlled by an external element; and
a control portion for controlling the transmission and reception channel filtering frequencies to correspond to transmission and reception channels of a current service band. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A multi-mode/multi-band wireless transceiver comprising:
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a tunable duplexer including transmission and reception channel filters of which transmission and reception channel filtering frequencies are respectively controlled by an external element;
transmission and reception routes corresponding to plural service bands, respectively;
a reception band switch for selectively connecting one of the reception routes, which corresponds to a current service band, to the reception channel filter;
a transmission band switch for selectively connecting one of the transmission routes, which corresponds to a current service band, to the transmission channel filter; and
a control portion for controlling the transmission and reception channel filtering frequencies to correspond to transmission and reception channels of the current service band, respectively, and for controlling the reception and transmission band switches to correspond to the current service band. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification