System and method for enhancing transmission and reception of a transceiver
A transceiver of a terminal for use in a TDD-based mobile communication system is provided. The transceiver comprises a receiver for processing a reception signal in a reception mode; a transmitter for processing a transmission signal in a transmission mode; a switching mechanism operable in the transmission mode and the reception mode; and a ground divider for dividing grounds for the receiver, the transmitter, and the switching mechanism.
1. A transceiver of a terminal for use in a TDD-based mobile communication system comprising:
a receiver for processing a reception signal in a reception mode;
a transmitter for processing a transmission signal in a transmission mode;
a switching mechanism operable in the transmission mode and the reception mode; and
a ground divider for dividing grounds for the receiver, the transmitter, and the switching mechanism, such that electrical components of the receiver are coupled to a receiver ground exclusive to the receiver, electrical components of the transmitter are coupled to a transmitter ground exclusive to the transmitter, and electrical components of the switching mechanism are coupled to a common ground
wherein the ground divider comprises:
a first ground separation element for isolating the receiver ground from the common ground; and
a second ground separation element for isolating the transmitter ground from the common ground.
2. The transceiver of claim 1 , wherein the receiver comprises:
a low-noise amplifier for amplifying the reception signal provided by the switching mechanism in the reception mode; and
a reception filter for filtering the amplified reception signal and for providing the filtered reception signal to an intermediate frequency processor.
3. The transceiver of claim 2 , wherein the switching mechanism comprises:
an antenna;
a duplexer connected to the antenna, the duplexer selecting transmission and reception frequency via the antenna;
a circulator for sending the reception signal from the duplexer to the receiver and for sending the transmission signal from the transmitter to the antenna, and
a switch installed on a signal line between the circulator and the receiver, wherein the switch is turned on in the reception mode.
4. The transceiver of claim 1 , wherein the transmitter comprises:
a transmission filter for filtering the transmission signal received from an intermediate frequency processor in the transmission mode; and
an amplifier for amplifying the filtered transmission signal.
5. The transceiver of claim 4 , wherein the transmitter further comprises:
an isolator for isolating the transmitter from signal interference created by the switching mechanism.
6. The transceiver of claim 1 , wherein the switching mechanism comprises:
an antenna;
a switch for selectively connecting the antenna to the receiver and the transmitter; and
a duplexer positioned between the antenna and the switch.
7. The transceiver of claim 6 , wherein at least one of the first and second ground separation elements is an inductor.
8. The transceiver of claim 6 , wherein at least one of the first and second ground separation elements is a ferrite bead.
9. The transceiver of claim 1 , wherein the ground divider comprises:
a first ground separation element for isolating a receiver ground for the receiver and a common ground for the switching mechanism from each other; and
a second ground separation element for isolating a transmitter ground for the transmitter and the common ground.
10. A method of data communication in a TDD-based mobile communication system, the method comprising:
processing a reception signal received by a receiver of the mobile communication system in a reception mode;
processing a transmission signal transmitted by a transmitter of the mobile communication system in a transmission mode, where in a switching mechanism is operable in the transmission mode and the reception mode; and
dividing grounds for the receiver, the transmitter, and the switching mechanism, such that electrical components of the receiver are coupled to a receiver ground exclusive to the receiver, electrical components of the transmitter are coupled to a transmitter ground exclusive to the transmitter, and electrical components of the switching mechanism are coupled to a common ground,
wherein a first ground separation element is provided for isolating the receiver ground from the common ground; and
a second ground separation element is provided for isolating the transmitter ground from the common ground.
11. The method claim 10 , wherein the step of processing a reception signal in the reception mode comprises:
amplifying the reception signal provided by the switching mechanism, using a low-noise amplifier;
filtering the amplified reception signal using a reception filter; and
providing the filtered reception signal to an intermediate frequency processor.
12. The method of claim 10 , wherein the step of processing a transmission signal in a transmission mode comprises:
filtering the transmission signal received from an intermediate frequency processor using a transmission filter; and
amplifying the filtered transmission signal.
13. The method of claim 10 , wherein the step of processing a transmission signal in a transmission mode further comprises isolating the transmitter from signal interference created by the switching mechanism.
14. The method of claim 10 , wherein the switching mechanism comprises:
an antenna;
a switch for selectively connecting the antenna to the receiver and the transmitter; and
a duplexer positioned between the antenna and the switch.
15. The method of claim 10 , wherein the first ground separation element is an inductor.
16. The method of claim 10 , wherein the first ground separation element is a ferrite bead.
17. The method of claim 10 , wherein the second ground separation element is a ferrite bead.
18. The method of claim 10 , wherein the switching mechanism comprises:
an antenna
a duplexer connected to the antenna, the duplexer selecting transmission and reception frequency via the antenna;
a circulator for sending the reception signal from the duplexer to the receiver and for sending the transmission signal from the transmitter to the antenna, and
a switch installed on a signal line between the circulator and the receiver, wherein the switch is turned on in the reception mode.
19. A transceiver of a terminal for use in a TDD-based time division synchronous CDMA (TD-CDMA) mobile communication system comprising:
a receiver for processing a reception signal in a reception mode;
a transmitter for processing a transmission signal in a transmission mode;
a switching mechanism operable in the transmission mode and the reception mode; and
a ground divider for dividing grounds for the receiver, the transmitter, and the switching mechanism, such that electrical components of the receiver are coupled to a receiver ground exclusive to the receiver, components of the transmitter are coupled to a transmitter ground exclusive to the transmitter, and components of the switching mechanism are coupled to a common ground,
wherein the ground divider comprises:
a first ground separation element for isolating the receiver ground from the common ground; and
a second ground separation element for isolating the transmitter ground from the common ground.