发明名称 |
SPREIZSPEKTRUM-MEHRFACHZUGRIFFSKOMMUNIKATION MITTELS SATELLIT ODER TERRESTRISCHEN ZWISCHENSTATIONEN. |
摘要 |
A multiple access, spread spectrum communication system and method for providing high capacity communications to, from, or between a plurality of system users, using code-division-spread-spectrum communication signals. The communication system uses means for providing marginal isolation between user communication signals. The marginal isolation is provided by generating simultaneous multiple steerable beams; using an omni-directional antenna with polarization enhancement; using power control devices to adjust the output power for user generated communication signals either in response to their input activity level, or in accordance with a minimum allowable power for maintaining a communication link. The communication system can also employ a means for transmitting a predetermined pilot chip sequence contiguous with the code-division-spread-spectrum communication signals. In further embodiments the communication system employs a plurality of user terminals linked to each other or to other services through one or more terrestrial or satellite repeaters. Multiple satellite repeaters are operable in a new communication mode to obtain further gains in signal isolation. |
申请公布号 |
AT121243(T) |
申请公布日期 |
1995.04.15 |
申请号 |
AT19870309122T |
申请日期 |
1987.10.15 |
申请人 |
QUALCOMM, INC. |
发明人 |
GILHOUSEN, KLEIN S.;JACOBS, IRWIN M.;WEAVER, LINDSAY A., JR. |
分类号 |
H04J13/00;H04B7/15;H04B7/216;H04B7/26 |
主分类号 |
H04J13/00 |
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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