Abstract: A sector-based base station includes at least one of a shared transmission RF local oscillator TX_LO, a shared receiving RF local oscillator RX_LO, a shared digital signal processing unit, and a shared transmission feedback unit. A technical solution of sharing an intermediate RF unit circuit in the sector-based base station is adopted, so as to reduce the number of elements used in the circuit without sacrificing the communication capacity of the base station. As such, the reliability index of a single board is improved, and the system reliability is also enhanced. Meanwhile, the material cost and the time required for debugging are both reduced, thus lowering the cost of the base station.

Abstract: An antenna device, a wireless cellular network, and a method of capacity expansion are provided. The antenna device includes: a contact element adapted to connect a base station to receive input signals from the base station; an amplitude and phase allocating element adapted to allocate the input signals received by the contact element according to designed amplitudes and phases; an antenna element comprising an array of antennas comprising an even number of columns, and adapted to receive and transmit the input signals allocated with the amplitudes and phases. An array of antennas comprising an even number of columns has been adopted, and a feed network construction of the antenna system has been improved, so that through adjusting amplitudes and phases of original signals from a base station, a smooth capacity expansion of the network can be achieved without adjusting antenna directivities, thus reducing the workload and complexity for capacity expansion.

Abstract: A sector-based base station includes at least one of a shared transmission RF local oscillator TX_LO, a shared receiving RF local oscillator RX_LO, a shared digital signal processing unit, and a shared transmission feedback unit. A technical solution of sharing an intermediate RF unit circuit in the sector-based base station is adopted, so as to reduce the number of elements used in the circuit without sacrificing the communication capacity of the base station. As such, the reliability index of a single board is improved, and the system reliability is also enhanced. Meanwhile, the material cost and the time required for debugging are both reduced; thus, lowering the cost of the base station.

Abstract: An antenna device, a wireless cellular network, and a method of capacity expansion are provided. The antenna device includes: a contact element adapted to connect a base station to receive input signals from the base station; an amplitude and phase allocating element adapted to allocate the input signals received by the contact element according to designed amplitudes and phases; an antenna element comprising an array of antennas comprising an even number of columns, and adapted to receive and transmit the input signals allocated with the amplitudes and phases. An array of antennas comprising an even number of columns has been adopted, and a feed network construction of the antenna system has been improved, so that through adjusting amplitudes and phases of original signals from a base station, a smooth capacity expansion of the network can be achieved without adjusting antenna directivities, thus reducing the workload and complexity for capacity expansion.