http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-2209479-T3
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_481648b910607c5dcbe4ba1c7a2b84a8 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04J13-0022 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B1-711 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04J13-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04B1-711 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04B1-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04B7-216 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04W88-02 |
| filingDate | 1999-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2004-06-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3ba0001c088d78bed99bd1b4dbe0284f |
| publicationDate | 2004-06-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | ES-2209479-T3 |
| titleOfInvention | ITERATIVE RAKE TYPE RECEIVER AND CORRESPONDING RECEPTION PROCEDURE. |
| abstract | Receiver of radiocommunication signals of the CDMA type, said signals having been obtained from spread spectrum symbols by means of pseudorandom sequences, said signals then being propagated in a plurality of paths, including this receiver: - means (120, ...,, ..., 12L-1) to restore, for each symbol, L widened signals, corresponding to L different paths, - means (140, ...,, ..., 14L-1) to calculate L estimates of the L paths, - demodulation means (160, ...,, ..., 16L-1) to process each of the L signals widened by the corresponding L estimates to obtain the contributions of the L paths, - an adder (18 ) to calculate the sum of said L contributions and provide an estimate of the symbol received, - a decision circuit (20) with respect to the symbol received from the value of the estimate provided by the adder, said receiver being characterized in that: a) it processes packages of N symbols, each package including data symbols and control symbols, each symbol being identified by the range k it occupies in the package, with k between 0 and N-1, b) for each path, identified by a index, being between 0 and L-1, and for each packet, the receiver considers a vector of N components that characterizes the path during said packet, c) the receiver includes the means (30) for defining a base of vectors Bk, said vectors being the N own vectors of the matrix, each vector being decomposed on this base, constituting the coefficients of the decomposition, called, independent Gaussian random variables, d) the coefficients define in each path a vector with N components, being able the means of estimating each vector through an iterative process based on an estimation-maximization algorithm (MS) based on a criterion of maximum probability a posteriori. |
| priorityDate | 1998-08-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 28.