| 摘要 |
<p>A target SIR comparator unit (116) compares a target SIR value held by a target SIR value holding unit (110) with a threshold value held by a target SIR threshold value holding unit (115), and sends the comparison result to a spread code selector unit (117). The spread code selector unit (117) selects, based on that comparison result, a spread code to be used by the communication terminal apparatus, and sends that selection result, as spread code information, to a frame structuring unit (111) and a despreader unit (104). The frame structuring unit (111) sends transmission information to which the spread code information has been added to a modulator unit (112). The despreader unit (104) uses a spread code identified by use of the spread code information to despread a received signal.</p> |
