摘要:
A community antenna system in the closed loop mode and the method thereof are provided, the system includes two groups of pre-weighting process modules and antenna arrays connecting in turn. The method includes the following steps: determining the pre-weighting vector and guide vector corresponding to the two antenna arrays respectively, based upon the channel information of each antenna array; using the pre-weighting vector and guide vector corresponding to the two antenna arrays to pre-weight the transmission signal and forming the two transmission signal processed by pre-weighting, the polarization mode of the two antenna array is orthogonal and that of each element in the same antenna array is same; sending the two transmission signal processed by weighting through the corresponding antenna array.
摘要:
The present invention relates to a home gateway device. The home gateway device comprises a main processor (1) for generating information process signals and control signals, a computer bus signal Ethernet adapter unit (2) connected with the main processor (1) for translating the signals between computer bus signals and Ethernet signals, an Ethernet frame process unit (4) connected with the computer bus signal Ethernet adapter unit (2) for forwarding the received Ethernet frame based on a prearranged policy, an inner interface unit (5) connected with the Ethernet frame process unit (4) for connecting interior networking devices, and an outer communication module (3) connected with the main processor (1) and the Ethernet frame process unit (4). The centralized control of the home gateway device of the present invention can decrease the requirement that the household appliances should be intellectualized, thereby achieving the control more flexible and reducing the cost. The uplink and downlink Ethernet signals are controlled by means of the prearranged policy to separate the Ethernet signals for networking from the Ethernet signals of the information household appliances, and avoid the threat caused by the unsafe factor.