Patent ID: 8437803
Filing Date: 2013-05-07
Classification: H04L,H04W

Abstract:
1. A base station, comprising: a common antenna configured to transmit signals to mobile stations (UEs) served by the base station; a special antenna configured to transmit a signal to a UE which is served by the base station and supports the special antenna; a sub-frame selecting unit configured to select a sub-frame for transmitting a common pilot of the special antenna in the current frame; a resource block (RB) selecting unit configured to select a RB for transmitting the common pilot of the special antenna, in the sub-frame for transmitting the common pilot of the special antenna selected by the sub-frame selecting unit; a notifying unit configured to notify the UE, which supports the special antenna, of the selected sub-frame and RB for transmitting the common pilot of the special antenna; a transmitting unit configured to transmit a signal having the common pilot of the special antenna in the RB selected by the RB selecting unit, wherein the mobile stations served by the base station comprise mobile stations supporting more antennas and mobile stations supporting less antennas, a special antenna is an antenna supported by the mobile stations supporting more antennas but not supported by the mobile stations supporting less antennas.