发明名称 |
Multiple access cellular communication with signal cancellation to reduce co-channel interference |
摘要 |
A method and system for reducing co-channel interference (CCI) in multiple access communication by providing complete or partial cancellation of a mixed CCI interfering signal in a system base station. An exemplary system includes first and second base stations communicating with users in first and second cells, respectively. The first base station transmits a downlink signal to a user in the first cell. The downlink signal is also a mixed CCI interfering signal in that it interferes with reception of an uplink signal in the second base station. A cancellation signal representative of the interfering signal is supplied along a transmission path from the first base station to the second base station. The second base station utilizes the cancellation signal to reduce the effect of the interfering signal on a received composite signal by, for example, combining the cancellation signal or a suitably processed version thereof with the received composite signal. Other aspects of the invention involve reducing mixed CCI by providing non-uniform quality of service, by dropping potentially interfering packets, or by full or partial circular interleaving of packet slot assignments.
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申请公布号 |
US5768254(A) |
申请公布日期 |
1998.06.16 |
申请号 |
US19950536554 |
申请日期 |
1995.09.29 |
申请人 |
LUCENT TECHNOLOGIES INC. |
发明人 |
PAPADOPOULOS, HARALABOS C.;SUNDBERG, CARL-ERIK WILHELM |
分类号 |
H04B1/10;H04B1/12;H04B7/005;H04B7/26;H04Q7/36;(IPC1-7):H04Q7/30;H04J3/10 |
主分类号 |
H04B1/10 |
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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