发明名称 |
Motion-aware mobile time and frequency tracking |
摘要 |
A method is provided for compensating for clock drift error and movement error of an access terminal. A forward link error is obtained that is attributable to at least a first error (e.g., clock drift error) component and a second error (e.g., movement error) component. The first error component and the second error component are estimated based on the obtained forward link error. A receive clock of the access terminal is compensated based on a combination of the first error component and the second error component. A transmit clock of the access terminal is compensated based on a difference between the first error component and the second error component. The forward link error may include a timing synchronization error between the access terminal and an access point as well as a frequency synchronization error between a forward link frequency and a baseband reference frequency.
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申请公布号 |
US7957343(B2) |
申请公布日期 |
2011.06.07 |
申请号 |
US20080261648 |
申请日期 |
2008.10.30 |
申请人 |
QUALCOMM INCORPORATED |
发明人 |
TSAI MING-CHANG;SHAH JIGNESHKUMAR;CHADHA KANU |
分类号 |
H04W56/00;H04J11/00;H04L7/00 |
主分类号 |
H04W56/00 |
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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