Wireless communications in a multi-sector network
US7706323B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 2, 2007 |
| Grant date | Apr 27, 2010 |
| Priority date | — |
| Expiry date | Nov 26, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W72/541
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a wireless network employing Spatial Division Multiplexing Access (“SDMA”) in at least one of its cells, a method is provided for dynamically allocating transmission resources to different subscriber devices. The method comprises the steps of: providing at least one base station comprising at least one antenna array; providing one or more sectors associated with that wireless communications network; dynamically dividing one or more of the sectors into a plurality of virtual sub-sectors, each allowing communications between the base station and at least one respective subscriber; from among the plurality of the virtual sub-sectors, selecting at least one pair of subscriber devices wherein each of the pair of subscriber devices is not interfered substantially by transmissions directed to the other subscriber of that pair; for each of the divided sectors, generating plurality of time frequency allocation maps; transmitting the generated maps to all virtual sub-sectors associated with the respective sector; and for each of the sectors, beamforming the transmissions to be conveyed to the subscriber devices' pairs, summing them and conveying the summed result towards the array antenna…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.