| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_26e69ef7b7bc98bfe778e419ccd664c9 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B7-2668
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04W56-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04L7-041
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04W74-08 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B1-7085
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B1-708
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B1-709
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B1-7093
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04J13-0014 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04B7-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04L7-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04W56-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04W74-08 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04B1-7093
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04B1-708
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04J13-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04L7-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04L12-56 |
| filingDate |
2009-11-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ec46d63bc4b95c7ff84acdc72ecec2f0 |
| publicationDate |
2010-04-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-2010081629-A |
| titleOfInvention |
Method and apparatus for efficiently obtaining synchronization in spread spectrum communications |
| abstract |
The present invention provides accurate and efficient synchronization between radios using one or more complementary sequences, eg, Golay pairs of sequences. A matched filter corresponding to a complementary pair of sequences is used to correlate a received signal with one of the complementary pairs of sequences. The peak detected by the matched filter is used to generate a timing estimate for synchronizing transmissions between radios. One sequence can be used as a preamble part of a random access message transmitted by a mobile station over a random access channel to a base station. The sequence may be transmitted by the base via a synchronization channel and used to obtain synchronization by the mobile station. An efficient Golay correlator for correlation with a single sequence and an efficient Golay correlator bank for correlation with a set of orthogonal sequences are disclosed. [Selection] Figure 7 |
| priorityDate |
1999-03-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |