| 摘要 |
The present invention provides a combining device for combining radio signals during uplink transmission in an indoor communication system, the indoor communication system comprising an Ethernet switch, the Ethernet switch connected to a base station and to at least a first and second radio remote headend. The radio remote headend (RRH) is adapted for expanding the wireless coverage of the base station and comprises: means for receiving at least a packet flow from the Ethernet switch, wherein the packet flow comprises packets from at least the first and second RRH, the packet comprises packet data, RRH identification and time stamp of the packets; means for separating the packets according to the RRH origin into at least first and second RRH packet, using the RRH identification; and means for matching the packets with identical time stamp between the first and the second RRH packets. The combining device also comprises means for summing the packet data of the matched packets with a mathematical addition and means for transmitting the summation of the packet data to the Ethernet switch.
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