发明名称 |
SPECTRUM SHARING AND MANAGEMENT OF COGNITIVE TRANSMISSION |
摘要 |
A wireless spectrum is shared between a primary communication system and secondary communication system operating in an overlapping geographical region. A primary transmitter broadcasts a primary signal, and a secondary transmitter transmits a secondary signal, both using a primary wireless spectrum assigned to the primary communication system. The secondary transmitter transmits the secondary signal to a secondary receiver with power (1−α)P and transmits the primary signal with power αP. The parameter α is computed to ensure a predetermined quality of reception of the primary signal by a hypothetical primary receiver located near the secondary transmitter. The secondary transmitter may compute a feasibility of using cognitive transmission and, when the computed feasibility exceeds or does not exceed a feasibility threshold, it selects to enable or disable, respectively, the use of the primary wireless spectrum to transmit from the secondary transmitter. |
申请公布号 |
EP2556692(A2) |
申请公布日期 |
2013.02.13 |
申请号 |
EP20110766277 |
申请日期 |
2011.04.06 |
申请人 |
THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY;TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) |
发明人 |
SACHS, JOACHIM;MARIC, IVANA;GOLDSMITH, ANDREA |
分类号 |
H04W16/14;H04J11/00;H04W52/04 |
主分类号 |
H04W16/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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