发明名称 |
Method of searching reverse traffic channels in a CDMA mobile radio communication system |
摘要 |
A method of searching reverse traffic channels in a code division multiple access (CDMA) mobile radio communication system for allowing for acquisition of reverse traffic channels without increase or decrease of size of a search window for traffic channels, the method comprising the steps of: storing an offset by a propagation delay after acquiring a reverse access channel; determining whether or not a pseudonoise (PN) random delay is employed for the reverse access channel and, when the PN random delay is used, calculating the PN random delay using a hash function with a factor of an electronic serial number (ESN) transmitted from a mobile station; computing the stored offset and the PN random delay and setting a new offset to a result of the computing; setting a center of a search window for searching the reverse traffic channel to the new offset and establishing the search window; and searching a reverse traffic channel preamble with the established search window. |
申请公布号 |
US6226282(B1) |
申请公布日期 |
2001.05.01 |
申请号 |
US19980220229 |
申请日期 |
1998.12.23 |
申请人 |
HYUNDAI ELECTRONICS IND. CO., LTD. |
发明人 |
CHUNG CHAE-HUN |
分类号 |
H04B7/26;H04B1/707;H04J13/00;H04Q7/38;(IPC1-7):H04B7/216;H04J3/06 |
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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