Reduced complexity correlator for use in a code division multiple access spread spectrum receiver
A reduced complexity correlator that enables the re-use of the most complex portions of a correlator, namely the multiplier and adder. The correlator of the present invention is especially well-suited for use in CDMA and W-CDMA spread spectrum communication systems that require the use of numerous c...
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Format | Patent |
Language | English |
Published |
02.05.2006
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Abstract | A reduced complexity correlator that enables the re-use of the most complex portions of a correlator, namely the multiplier and adder. The correlator of the present invention is especially well-suited for use in CDMA and W-CDMA spread spectrum communication systems that require the use of numerous correlators in their operation. Multiple input samples, multiple codes and integration results are stored in shift registers and circularly shifted and clocked out at appropriate clock rates such that the multiplication and accumulation steps of the correlation process are synchronized. |
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AbstractList | A reduced complexity correlator that enables the re-use of the most complex portions of a correlator, namely the multiplier and adder. The correlator of the present invention is especially well-suited for use in CDMA and W-CDMA spread spectrum communication systems that require the use of numerous correlators in their operation. Multiple input samples, multiple codes and integration results are stored in shift registers and circularly shifted and clocked out at appropriate clock rates such that the multiplication and accumulation steps of the correlation process are synchronized. |
Author | Reshef, Ehud Avital, Yaniv |
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References | Imaizumi et al. (6707844) 20040300 Lee et al. (6813262) 20041100 Nagase et al. (5500856) 19960300 Lee (6173008) 20010100 Cantwell (5117232) 19920500 Lomp et al. (5991332) 19991100 Chung et al. (6005889) 19991200 Oishi et al. (6650689) 20031100 Hakala (6539048) 20030300 L. Harju, M. Kuulusa, and J. Nurmi, A Flexible Rake Receiver Architecture for WCDMA Mobile Terminals, Third IEEE Signal Processing Workshop on Signal Processing Advances in Wireless Communications, Mar. 20-23, 2001. Wang et al. (6501788) 20021200 Sawahashi et al. (5768306) 19980600 |
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Snippet | A reduced complexity correlator that enables the re-use of the most complex portions of a correlator, namely the multiplier and adder. The correlator of the... |
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Title | Reduced complexity correlator for use in a code division multiple access spread spectrum receiver |
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