Patent ID: 8417295

Claim:
A base station, comprising: first radio circuitry; a first user duplexer, connected to the first radio circuitry; second radio circuitry; a second user duplexer, connected to the second radio circuitry; an antenna element; a first controllable amplitude control circuitry element connected to a transmit side of the first user duplexer in a first transmit path of the antenna element; a second controllable amplitude control circuitry element connected to a receive side of the first user duplexer in a first receive path of the antenna element; a third controllable amplitude control circuitry element connected to a transmit side of the second user duplexer in a second transmit path of the antenna element; a fourth controllable amplitude control circuitry element connected to a receive side of the second user duplexer in a second receive path of the antenna element; a first junction element combining the first and second transmit paths to form a combined transmit path of the antenna element; and a second junction element combining the first and second receive paths to form a combined receive path of the antenna element.