Abstract: Method and apparatus of data transmission in a cellular communication system which can increase the efficiency of the information signal transmission in the downlink and, thus, maximize the information signal reception quality at the mobile station. The solution can also reduce the feedback channel (from mobile to base station) load. The apparatus operates along with the base station and provides M diversity groups of transmission channels, each group having K transmission channels.

Abstract: A device and method are disclosed for protecting a wireless communication system from impulse surges occurring in the system under the impact of lightning discharges. The device includes a high frequency line, and a first decoupling filter formed as a ?/4 section and a gas arrestor, sequentially connected to the high frequency line, in which the gas arrestor is connected between the first decoupling filter and the ground. A low frequency line and a second decoupling filter are connected in series between an output terminal, through which a signal flows into a circuit, and a contact point between the first decoupling filter and the gas arrestor. The low frequency line includes a low voltage limiter and a low pass filter. A T-shaped high pass filer is connected to the high frequency line.

Abstract: The invention relates to radio engineering, more specifically to a method and a device for receiving multipath signals in a radio communications system with a code division multiple access (CDMA) and can be used for the receiving equipment of a base station. Said invention makes it possible to compensate a reciprocal signal interference of all user beams of information and pilot channels in a shaped complex cross-correlation response of all user beams of the information and pilot channels. The number of information channels and the data transmission rate in the information channels can vary from user to user. A serial compensation of the reciprocal signals interference of all user beams of the information and pilot channels during measurement of user signal parameters and complex waveform envelopes of all user beams is carried out in several iterations.

Abstract: For the purpose of making the system more economic, given full compensation of transmitter and receiver signal attenuation in the communication cable, the circuit controlling transmitter enable/disable status, including a controllable power source (control command converter) and a low pass filter separating a receive/transmit UHF signal from a lower frequency up to direct voltage) signal, a number of control commands, is introduced into mobile station, mobile station having autonomous power supply. According to the first variant of the device, the control command, having passed the low pass filter (19), enables the power source (21) control from which power is supplied to the power amplifier (11) whose amplification is selected so as to compensate attenuation of the transmitter signal traveling from mobile station (1) to antenna (16).

Abstract: The invention relates to radio engineering, more specifically to a method and a device for receiving multipath signals in a radio communications system with a code division multiple access (CDMA) and can be used for the receiving equipment of a base station. Said invention makes it possible to compensate a reciprocal signal interference of all user beams of information and pilot channels in a shaped complex cross-correlation response of all user beams of the information and pilot channels. The number of information channels and the data transmission rate in the information channels can vary from user to user. A serial compensation of the reciprocal signals interference of all user beams of the information and pilot channels during measurement of user signal parameters and complex waveform envelopes of all user beams is carried out in several iterations.