| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_654d60385b9d3686a1c7a35a678e7f8a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_68922057992b0663af93e099322f6fb3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5b21096001fef35473e09468f7efbd4b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_51d028c578ae85cb937b5b34a5129fbc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_20dd03a595ca2b9892f9edd255f083a6 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B7-0465 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B7-0641
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B7-0617
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04W16-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B7-0478
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B7-0482
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B7-0447
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B7-0465
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B7-0434
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04B7-0456 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04B7-005
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04B7-04 |
| filingDate |
2009-09-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_af4577a574b2efdb29fff45aea84ef77
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ae5aa4f22fee2501ab7900550c8afcba
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c0963cf700c33ae35428245f36e84391 |
| publicationDate |
2010-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2010027974-A1 |
| titleOfInvention |
Mimo beamforming method and method of constructing a differential codebook for a wireless network |
| abstract |
A MIMO beamforming method comprises receiving at a base station information regarding a difference between an ideal beamforming matrix and an averaged beamforming direction, using the information to construct a beamforming matrix at the base station, and performing a beamforming operation using the reconstructed beamforming matrix. Alternatively, the method comprises computing at a subscriber station an averaged beamforming direction, computing at the subscriber station a quantization index corresponding to a differential matrix in a differential codebook, and transmitting the quantization index across a wireless channel of the wireless network. The differential codebook may be constructed by identifying a codebook center and transforming a predefined codebook that is stored in a memory of a component of the wireless network. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9094072-B2 |
| priorityDate |
2008-09-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |