Automatic control apparatus and method for TD-SCDMA mobile terminal
First Claim
1. An automatic control system of a mobile terminal for time division duplex (TDD) based communication system, comprising:
- a RF processing module to control quality of a transmission channel; and
a baseband modem to generate automatic control signals based on control information received from a base station and to transmit the automatic control signals across a transmission data line to the RF processing module while the mobile terminal is in a reception mode, the baseband modem further to transmit transmission data across the transmission data line to the RF processing module while the mobile terminal is in the transmission mode, wherein the RF processing module includes;
a transmission/reception unit to process the data received through an antenna of the mobile terminal so as to transmit the data to the baseband modem, and the transmission/reception unit to process the transmission data received from the baseband modem across the transmission data line so as to transmit the transmission data in the air through the antenna,an oscillator to generate an oscillating frequency, anda switch to receive the automatic control signals from the transmission data line and to check a type of the automatic control signals received across the transmission data line from the baseband modem while the mobile terminal is in the reception mode, and the switch to route the automatic control signal to the transmission/reception unit when the received automatic control signal is an automatic power control (APC) signal or an automatic gain control (AGC) signal and the switch to route the automatic control signal to the oscillator when the received automatic control signal is an automatic frequency control (AFC) signal, wherein the APC, AGC, and AFC signals are transmitted to the RF processing module across the transmission data line.
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Accused Products
Abstract
The automatic control system of a mobile terminal for time division duplex (TDD) based communication system includes an RF processing module which controls quality of a transmission channel, and a baseband modem connected to the RF processing module through a transmission data line and a reception data line. The baseband modem generates automatic control signals based on control information received from a base station and transmitting the automatic control signal to the RF processing module through the transmission data line in a reception mode of the mobile terminal. The automatic control signals are transmitted to the RF processing module through the transmission data line, which is in the idle state, in the reception mode. Additional control lines are not required to transmit the respective automatic control signals. Therefore, utilization of the transmit data line between the baseband modem and the RF processing module can be improved.
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Citations
13 Claims
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1. An automatic control system of a mobile terminal for time division duplex (TDD) based communication system, comprising:
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a RF processing module to control quality of a transmission channel; and a baseband modem to generate automatic control signals based on control information received from a base station and to transmit the automatic control signals across a transmission data line to the RF processing module while the mobile terminal is in a reception mode, the baseband modem further to transmit transmission data across the transmission data line to the RF processing module while the mobile terminal is in the transmission mode, wherein the RF processing module includes; a transmission/reception unit to process the data received through an antenna of the mobile terminal so as to transmit the data to the baseband modem, and the transmission/reception unit to process the transmission data received from the baseband modem across the transmission data line so as to transmit the transmission data in the air through the antenna, an oscillator to generate an oscillating frequency, and a switch to receive the automatic control signals from the transmission data line and to check a type of the automatic control signals received across the transmission data line from the baseband modem while the mobile terminal is in the reception mode, and the switch to route the automatic control signal to the transmission/reception unit when the received automatic control signal is an automatic power control (APC) signal or an automatic gain control (AGC) signal and the switch to route the automatic control signal to the oscillator when the received automatic control signal is an automatic frequency control (AFC) signal, wherein the APC, AGC, and AFC signals are transmitted to the RF processing module across the transmission data line. - View Dependent Claims (2, 3, 4, 5, 12)
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6. An automatic control system of a mobile terminal for time division duplex (TDD) based communication system, comprising:
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an RF processing module that controls quality of a transmission channel; and a baseband modem coupled to the RF processing module through a transmission data line and coupled to the RF processing module through a reception data line, the baseband modem to generate automatic control signals based on control information received from a base station and to transmit the automatic control signals to the RF processing module through the transmission data line when the mobile terminal is in a reception mode, the baseband modem further to transmit transmission data through the transmission data line to the RF processing module when the mobile terminal is in a transmission mode, wherein the RF processing module includes; a transmission/reception unit to process data received through an antenna of the mobile terminal so as to transmit the data to the baseband modem, and to process the transmission data received from the baseband modem across the transmission data line so as to transmit the transmission data through the antenna, an oscillator to generate an oscillating frequency, and a switch to receive the automatic control signals from the transmission data line and to check a type of the automatic control signals received across the transmission data line from the baseband modem while the mobile terminal is in the reception mode and the switch to route the automatic control signal to the transmission/reception unit when the received automatic control signal is an automatic power control (APC) signal or an automatic gain control (AGC) signal and the switch to route the automatic control signal to the oscillator when the received automatic control signal is an automatic frequency control AFC signal, wherein the APC, AGC, and AFC signals are transmitted to the RF processing module through the transmission data line. - View Dependent Claims (7, 13)
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8. An automatic control method for a time division duplex (TDD) based mobile terminal, comprising:
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determining whether the mobile terminal is in a transmission mode or is in a reception mode; determining whether or not an automatic control command is received from an upper layer when the mobile terminal is in the reception mode; generating automatic control signals based on the automatic control command if the automatic control command is received from the upper layer; transmitting the automatic control signals across a transmission data line to an RF processing module when the mobile terminal is in the reception mode, wherein transmitting the automatic control signals across the transmission data line includes; routing the automatic control signal to associated elements of a transmission/reception unit of the RF processing module when the automatic control signal transmitted across the transmission data line is an APC signal or an AGC signal, and routing the automatic control signal to an oscillator of the RF processing unit when the automatic control signal transmitted across the transmission data line is an AFC signal; transmitting transmission data across the transmission data line to the RF processing module when the mobile terminal is in the transmission mode; and setting a quality of a transmission channel based on the automatic control signals transmitted across the transmission data line. - View Dependent Claims (9, 10, 11)
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Specification