Apparatus and method for estimating OVSF code

Apparatus and method for estimating OVSF code

The present disclosure provides a method for estimating OVSF (orthogonal variable spreading factor) code, the method comprises setting an initial value of a spreading factor and an initial value of an index of the spreading factor; extracting a first reception symbol by dechannelizing a reception si...

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Hauptverfasser: Kim, Dongwoo, Park, Cheolsun, Yoon, Dongweon
Format: Patent
Sprache:eng
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ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
MULTIPLEX COMMUNICATION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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creator Kim, Dongwoo
Park, Cheolsun
Yoon, Dongweon
description The present disclosure provides a method for estimating OVSF (orthogonal variable spreading factor) code, the method comprises setting an initial value of a spreading factor and an initial value of an index of the spreading factor; extracting a first reception symbol by dechannelizing a reception signal based on a candidate OVSF code corresponding to the set spreading factor and the set index; acquiring a first code domain power of the first reception symbol; acquiring, if the first code domain power is greater than or equal to a predetermined reference value, variance of power of the first reception symbol which is normalized by the first code domain power; and estimating a used OVSF code based on the variance of the normalized power of the first reception symbol.
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extracting a first reception symbol by dechannelizing a reception signal based on a candidate OVSF code corresponding to the set spreading factor and the set index; acquiring a first code domain power of the first reception symbol; acquiring, if the first code domain power is greater than or equal to a predetermined reference value, variance of power of the first reception symbol which is normalized by the first code domain power; and estimating a used OVSF code based on the variance of the normalized power of the first reception symbol.</description><language>eng</language><subject>ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRICITY ; MULTIPLEX COMMUNICATION ; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION</subject><creationdate>2021</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20210126&amp;DB=EPODOC&amp;CC=US&amp;NR=10903927B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25562,76317</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20210126&amp;DB=EPODOC&amp;CC=US&amp;NR=10903927B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Kim, Dongwoo</creatorcontrib><creatorcontrib>Park, Cheolsun</creatorcontrib><creatorcontrib>Yoon, Dongweon</creatorcontrib><title>Apparatus and method for estimating OVSF code</title><description>The present disclosure provides a method for estimating OVSF (orthogonal variable spreading factor) code, the method comprises setting an initial value of a spreading factor and an initial value of an index of the spreading factor; 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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
MULTIPLEX COMMUNICATION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
title Apparatus and method for estimating OVSF code
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