发明名称 |
Receiver for receiving a spectrum dispersion signal |
摘要 |
A receiver for the CDMA system which reduces power consumption during a suspension period of intermittent receiving operation by monitoring a suspension period by a low-power timer so that a VC-TCXO, reference signal group generation and receiving units are turned off and a modem unit is set to a sleep state. Upon resumption of receiving operation, a high-accuracy timer is started to count a time period and part of a received signal is stored. A PN code phase of stored data is calculated during the time period to obtain an indication value for phase deviation. State vectors for short and long codes and a further reception time are calculated based on the indication value. When the high-accuracy timer counts the time period and produces 0V(d), demodulation operation by a rake demodulation, demultiplexing, and descrambler units is started and is continued during the reception time. |
申请公布号 |
US8130816(B2) |
申请公布日期 |
2012.03.06 |
申请号 |
US20080275309 |
申请日期 |
2008.11.21 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
SUDO SHIGEYUKI;HASEGAWA OSAMU;EGUCHI TOSHIYA |
分类号 |
H04B1/00;H04J13/00;H04B1/16;H04B1/707;H04B7/26 |
主分类号 |
H04B1/00 |
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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