| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of collecting subframes of satellite navigation data to improve the time to first fix (TTFF) performance of satellite communications. SOLUTION: The method includes the following steps: (a) A step of receiving a subframe provided with words divided into two or more subunits; (b) A step of checking whether each subunit is valid or not; (c) A step of collecting required subunits from the valid subunits; (d) A step of determining whether the required subunits of the subframe are collected or not; and (e) A step of collecting missing subunits after waiting for the retransmission of the subframe when all the required subunits of the subframe are not yet collected. COPYRIGHT: (C)2008,JPO&INPIT
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