Samsung Electronics Co., Ltd.

Hung-Su Park

Hyun-Seok Oh

Hyun-seok Yu

Soo-bok Yeo

Joo-Kwang Kim

Sung-Chul Han

Dong-Kyoon Cho

Ki-Hwan Jeon

Ho-Seung Lee

Shin-Woo Kang

Hyun-Seok Yu

An automatic gain control apparatus and method for a compressed mode in a MIMO system are provided. The method includes determining power at a first frequency band using a first receiver, simultaneously determining power at a second frequency band using a second receiver in a compressed mode, if the second receiver changes a power determination frequency band into the first frequency band, correcting the power determination value of the first receiver, and applying the corrected power determination value of the first receiver to the second receiver.

Automatic gain control apparatus and method for compressed mode in MIMO system

An apparatus and a method for compensating for a Transmission (Tx) gain in a transmitter of a wireless communication system are provided. The apparatus includes a Tx Automatic Gain Control (AGC) for generating at least an adjustment value for controlling a Tx gain; a Tx Power Adjust (TPA) controller for generating a compensation value for compensating for Nonlinear Compensate Table (NCT) control information using frequency and temperature changes according to operations of the transmitter and the adjustment value provided from the Tx AGC; and an NCT controller for generating the NCT control information using the adjustment value provided from the Tx AGC, and compensating for the NCT control information with the compensation value output from the TPA controller.

Apparatus and method for compensating Tx gain in wireless communication system

A method and apparatus for canceling interference during reception of a broadcast signal in a hybrid terminal including a broadcast receiver and a mobile communication terminal. In the interference cancellation apparatus, a gain controller adjusts transmission power of the mobile communication terminal, and a transmission power controller determines whether there is a burst of a broadcast signal that the broadcast receiver will receive. If there is a burst of the broadcast signal, the transmission power controller controls the gain controller to decrease transmission power of a mobile communication signal transmitted by the mobile communication terminal at a corresponding slot.

Method and apparatus for canceling interference in a hybrid terminal supporting both broadcast service and mobile communication service, and a hybrid terminal thereof

An apparatus for controlling a gain of a transceiving device in a terminal for a communication system is disclosed. A memory stores predetermined thresholds for level-by-level gain controlling. A signal intensity detector detects an intensity value of a received signal. Comparators compare the received signal intensity value with thresholds predetermined according to the current state. A state detector detects a gain level for the current state according to the comparison results provided from the comparators. A controller updates the current state according to the detected gain level, controls a gain of the transceiving device according to the updated current state, and sets thresholds corresponding to the updated current state in the comparators.

Apparatus and method for controlling gain of a transceiving device in a wireless terminal for a communication system

A register apparatus and method for providing a two-way gating structure for receiving a write enable signal, a chip select signal, at least one read signal, and an address signal for a register. The apparatus and method comprise a two-way gating portion for generating a coded write address by AND-operating a first signal with the address signal, a coded read address by AND-operating a second signal with the address signal, and a reader activation signal by AND-operating the read signal with the second signal. The first and second signals are generated by AND-operating the chip select signal with the write enable signal and by AND-operating the chip select signal with an inverted write enable signal. A writer decodes the coded write address and generates write signals using the decoded write address and data received from a bus. A reader decodes the coded read address and generates data using data read from the register and the decoded read address.

Low power register apparatus having a two-way gating structure and method thereof

Disclosed is a linearization method in a mobile communication terminal wherein automatic gain control signals are divided into a plurality of entry regions, and which includes an initial value for a first entry region among the plurality of entry regions, a resolution constant and a slope character value for each entry region for generating a linear automatic gain control signal which guarantee a linearity of amplification gain of an amplifier. The linearization method comprises the steps of: detecting a corresponding entry region using a preset number of bits from the automatic gain control signal which is represented by a plurality of bits and detecting a position value of the detected entry region using the remaining bits except the preset number of bits; generating an initial value of a second entry region using the initial value of the first entry region, an entry region size value and a slope value of the first entry region presented by the resolution constant and a slope character value of the first entry region, and then sequentially generating initial values of the following entry regions using an initial value of a previous entry region, the entry region size value, a slope value of a previous entry region to thereby generate an initial value of the detected entry region; and generating the linear automatic gain control signal by adding a value obtained by multiplying the slope value of the detected entry region by the position value of the entry region and an initial value of a corresponding entry region which is generated by the initial value generator.

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Suwon-si, South Korea

Hung-Su Park