Downlink coordinated transmission in OFDMA systems
US7706335B2 · kind B2 · utility
1Cited by
1References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2007 |
| Grant date | Apr 27, 2010 |
| Priority date | — |
| Expiry date | Jul 18, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W72/541
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Embodiments described herein include methods for improving the SINR, and therefore communication quality or rate, in the downlink of a cellular communication system. In an embodiment, the system is an orthogonal-frequency-division multiple-access (OFDMA) system. In an embodiment, a set of terminals is designated a coordinated-transmission group. The set of terminal is chosen such that the slot-allocations of the set are given special treatment to alleviate interference from other sectors or cells. All terminals within a coordination group generally use the same slot, but embodiments are not so limited.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.