| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_82a9e22a923eca64a02a97f0dfb493ed |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04W12-02 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04L27-2626
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04L27-2602
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B7-0615
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B7-0413
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04L27-2647 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04B7-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04J99-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04B7-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04L27-26 |
| filingDate |
2005-03-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ec15cdda3f2b51c36c23213bf186b98d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e1c9e08e73d72fab6f1615f4aa2ca287
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b92c6e276e9a77d275bcd3c5867cabbb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d624e2a69408b8f153376c4c31f59c7b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1ae34cc60f280427df0be25bd6d943c3 |
| publicationDate |
2007-02-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1751883-A1 |
| titleOfInvention |
Transmit diversity and spatial spreading for an ofdm-based multi-antenna communication system |
| abstract |
A multi-antenna transmitting entity transmits data to a single- or multi-antenna receiving entity using (1) a steered mode to direct the data transmission toward the receiving entity or (2) a pseudo-random transmit steering (PRTS) mode to randomize the effective channels observed by the data transmission across the subbands. The PRTS mode may be used to achieve transmit diversity or spatial spreading. For transmit diversity, the transmitting entity uses different pseudo-random steering vectors across the subbands but the same steering vector across a packet for each subband. The receiving entity does not need to have knowledge of the pseudo-random steering vectors or perform any special processing. For spatial spreading, the transmitting entity uses different pseudo-random steering vectors across the subbands and different steering vectors across the packet for each subband. Only the transmitting and receiving entities know the steering vectors used for data transmission. |
| priorityDate |
2004-03-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |