Patent ID: 9100956
Filing Date: 2015-08-04
Classification: H04B,H04W

Abstract:
1. A preamble transmission device of a multi-mode supporting base station that processes a plurality of wireless protocols comprising: a preamble defining unit configured to define a plurality of preamble sets based on modes and classes based on radio resource usage rates; an information acquisition unit configured to acquire information about the radio resource usage rates for each mode from an upper layer device of the multi-mode supporting base station; a class determining unit configured to determine classes of preambles for each mode according to the plurality of preamble sets based on the modes and the classes based on the radio resource usage rates defined by the preamble defining unit, and the information about the radio resource usage rates for each mode acquired by the information acquisition unit; a preamble generating unit configured to generate preamble signals for each mode corresponding to the class determined by the class determining unit; and a preamble transmitting unit configured to transmit the preamble signals for each mode generated by the preamble generating unit to a multi-mode supporting user terminal.