Channel allocation in broadband orthogonal frequency-division multiple-access/space-division multiple-access networks
US6870808B1 · kind B1 · utility
183Cited by
50References
42Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 18, 2000 |
| Grant date | Mar 22, 2005 |
| Priority date | — |
| Expiry date | Dec 20, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W72/0453
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A network is described. In one embodiment, the network comprises multiple subscriber units to communicate with the base station using an orthogonal frequency-division multiple-access (OFDMA) protocol, and a base station. The base-station includes a memory unit to store broadband spatial signature vectors associated with each subscriber and traffic channel allocation logic. The vectors are a function of frequency. The traffic channel allocation logic allocates OFDMA channels using the broadband spatial signature vectors of the subscribers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.