发明名称 METHOD AND SYSTEM FOR CODE REUSE AND CAPACITY ENHANCEMENT USING NULL STEERING
摘要 <p>The number of users (USER A, USER B) and data (dA, dB) capacity of wireless systems (Fig. 1) are increased by employing apparatus and method for increasing the number of spreading codes (CA, CB) available in the system by providing a mechanism to reuse the already allocated spreading code or use the codes that may correlate to those already being used within the same sector/cell. This, in return, provides capacity improvement proportional to the number of added base station (BS) antennas (1, 2, 3) for each cell. An antenna null steering technique for code allocation maintains the cross correlation properties of the codes only for the desired user and to obtain a gain in capacity improvement.</p>
申请公布号 WO2003041293(A1) 申请公布日期 2003.05.15
申请号 US2002035168 申请日期 2002.11.01
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