发明名称 |
S-CDMA FIXED WIRELESS LOOP SYSTEM EMPLOYING SUBSCRIBER UNIT/RADIO BASE UNIT SUPER-FRAME ALIGNMENT |
摘要 |
A method is disclosed for operating a synchronous Code Division Multiple Access (S-CDMA) radio frequency communication system having a host transceiver unit and a plurality of user transceiver units. The method includes an initial step of defining a super-frame to be comprised of N sequential frames of data. In the preferred embodiment N is equal to three. For a user transceiver unit that obtains access to the host transceiver unit a next step of the method receives frames of data transmitted by the host transceiver unit and initially aligns a receiver timing and a transmitter timing of the user transceiver unit to a super-frame boundary of the received frames. A next step transmits frames of data from the user transceiver unit to the host transceiver unit using the initial timing alignment. A further step of the method detects at the host transceiver unit a difference between the arrival of the transmitted frames of data and a super-frame boundary and then transmits a timing correction parameter, preferably expressed in symbols, from the host transceiver unit to the user transceiver unit in order to align the transmitted frames of data to the super-frame boundary. |
申请公布号 |
IL136644(D0) |
申请公布日期 |
2001.06.14 |
申请号 |
IL19980136644 |
申请日期 |
1998.11.12 |
申请人 |
L-3 COMMUNICATIONS CORPORATION |
发明人 |
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分类号 |
H04B7/26;H04L7/08;H04Q7/38;(IPC1-7):H04B |
主分类号 |
H04B7/26 |
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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