Abstract:
The present invention relates to a communication module assembly. The present invention is a communication module assembly which is electrically connected to a communication device and is supplied with power and signal, and can include a connection port unit that is supplied with the power and the signal from the communication device; a cable connection portion which is provided in the connection port unit, and to which cables electrically connected to the communication device is connected; a plurality of communication modules that is stacked on and connected to the connection port unit in a plug-in type; and a guide means for guiding the communication module such that the communication modules are connected to the connection port unit in a central direction.
Abstract:
A base station system includes a main conversion unit configured to receive a first downlink frame conforming to a first protocol and a second downlink frame conforming to a second protocol, and configured to reconstruct the first and second downlink frames to conform to a third protocol and generate a downlink transmit frame; and a radio unit including a remote conversion unit that receives the downlink transmission frame and disassembles the received downlink transmission frame to output at least one of the first and second downlink frames.
Abstract:
A remote device of an optical relay system includes first and second remote driving units each extracting transmission signals of different frequency bands from downlink Radio Frequency (RF) signals provided from an optical conversion unit and outputting the transmission signals; and a downlink path control unit receiving the downlink RF signals from the optical conversion unit and transmitting the downlink RF signals to the second remote driving unit through the first remote driving unit, or transmitting the downlink RF signals to the second remote driving unit by bypassing the first remote driving unit.
Abstract:
An interference cancellation repeater for canceling an interference signal included in an input signal including a first adaptive filter configured to generate a first estimated signal; a second adaptive filter configured to generate a second estimated signal; a first scaler configured to scale the first estimated signal based on a first scale factor determined according to a channel state; a second scaler configured to scale the second estimated signal based on a second scale factor determined according to the channel state; a first canceller configured to generate a first interference canceled signal based on the input signal and the scaled first estimated signal; and a second canceller configured to generate a second interference canceled signal based on the first interference canceled signal and the scaled second estimated signal.
Abstract:
Provided is a multi-antenna relay device. The multi-antenna relay device having first to n-th (n is a natural number of 2 or more) channel formed between receiving antennas and transmitting antennas corresponding to each other, comprising: first to n-th channel interference cancellation units, respectively, included in a corresponding channel among the first to n-th channels and canceling first to n-th channel interference signals corresponding to signals radiated through the first to n-th channels from signal input into the corresponding channel in real time.
Abstract:
The inventive concept relates to a distributed antenna system (DAS), and more particularly, to an uplink signal transmission operation of each of node units constituting a DAS. A node unit of a DAS includes a multiplexer configured to generate a single uplink signal by selectively outputting any one of m uplink signals received from m lower node units at an interval of a predetermined output time, where m is a positive integer greater than 1, and a down-sampler configured to output a transmission uplink signal by converting a sampling rate of the single uplink signal to correspond to a sampling rate of any one of the m uplink signals. Accordingly, it is possible to provide a DAS capable of processing and outputting, as one signal, uplink signals received from a plurality of remote units, without any error.
Abstract:
The present invention relates to a communication module assembly. The present invention is a communication module assembly which is electrically connected to a communication device and is supplied with power and signal, and can include a connection port unit that is supplied with the power and the signal from the communication device; a cable connection portion which is provided in the connection port unit, and to which cables electrically connected to the communication device is connected; a plurality of communication modules that is stacked on and connected to the connection port unit in a plug-in type; and a guide means for guiding the communication module such that the communication modules are connected to the connection port unit in a central direction.
Abstract:
Provided are an optical relay system and a method for setting identification information of a remote device in an optical relay system. In particular, provided are an optical relay system and a method for setting identification information of a remote device in an optical relay system in which a donor device generates unique identification information of a remote device based on temporary identification information and characteristic information received from the remote device to automatically set identification information of the remote device, and as a result, the optical relay system can be normally implemented rapidly in initial installation of the optical relay system or a change of an optical relay system environment and convenience of a manager and reliability of a mobile communication service can be improved.
Abstract:
In a relay managing method through a network management system (NMS) server, a registration request is received from a relay BTS interface unit (BIU). The identification information of the BIU that transmits the registration request is compared with a previously registered BIU registration table, and a new BIU ID is provided to the BIU that transmits the registration request, when information corresponding to the identification information of the BIU that transmits the registration request does not exist in the BIU registration table. Subsequently, registration is performed by mapping the identification information of the BIU that transmits the registration request and allocation IP information to the provided new BIU ID.
Abstract:
A communication device for power saving and a method for controlling power thereof are provided. The communication device includes: a power amplifying unit configured to generate an output signal obtained by amplifying a downlink signal, using a supply voltage, and output the output signal; and a control unit configured to determine a current state by comparing predetermined downlink reference information with output signal information on the output signal, and, if the current state is an idle state as a comparison result, control the supply voltage to correspond to a first voltage. Accordingly, power for amplifying a signal can be controlled according to communication traffic, thereby preventing consumption of unnecessary power.