Method and apparatus for downlink resource allocation in an orthogonal frequency division multiplexing communication system
US8073062B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2008 |
| Grant date | Dec 6, 2011 |
| Priority date | — |
| Expiry date | Oct 7, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W72/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A communication is provided that schedules both Distributed Virtual Resource Blocks (DVRB) and Localized Virtual Resource Blocks (LVRB) in a same frequency channel, thereby obtaining the benefits of frequency selective scheduling while minimizing the uplink feedback overhead. In one embodiment of the invention, the communication system assigns one or more downlink Physical Resource Blocks (PRBs) of multiple downlink Physical Resource Blocks (PRBs) to each user equipment (UE) given an LVRB to produce at least one reserved PRB and multiple non-reserved PRBs and assigns a part of each PRB of the multiple non-reserved PRBs to a UE given a DVRB. In another embodiment of the invention, the communication system assigns PRBs pre-reserved for localized transmission to UEs scheduled for LVRBs and assigns parts of multiple PRBs pre-reserved for distributed transmission to each UE given a DVRB.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.