Sumitomo develops remote radio head for LTE base stations

The next generation wireless
broadband systems, such as LTE and WiMAX networks, have recently come into
practical use. In these systems, a new design scheme has been increasingly implemented,
where the wireless transceiver known as RRH is separated from the base
station to be placed beneath the antenna. This scheme has now become the
mainstream in this field.

Locating the RRH closer to the
antenna prevents the power loss caused while transmitting through a long
cable. Consequently, the amplifier output to the antenna is lowered, and the
total power consumption by the RRH is reduced.

Conventionally, the base station
main equipment needs to be installed near an antenna. With the independent
RRH, this is not required, effectively increasing the options for the
installation.