Uplink reference signal allocation and assignment for cell clusters
US9100834B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2009 |
| Grant date | Aug 4, 2015 |
| Priority date | — |
| Expiry date | Dec 9, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W16/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The inventive methods and apparatus disclosed herein allocate and assign uplink reference signals to cells (104, 106) within a cell cluster (100, 302, 402, 502) based on the type of cell. According to an embodiment, uplink reference signals are allocated within a cell cluster (100, 102, 302, 402, 502) by partitioning a set of uplink reference signals allocated to the cell cluster (100, 102, 302, 402, 502) into mutually exclusive subsets of uplink reference signals. One of the subsets is allocated to each of the border cells (104) and the entire set of uplink reference signals is allocated to the interior cells (106). Accordingly, more uplink reference signals are available for assignment to mobile devices (310, 410, 510) served by the interior cells (106) than by the border cells (104). In one embodiment, uplink reference signals are statically or semi-dynamically assigned to mobile devices (310, 410, 510) served within the border cells (104) and dynamically assigned to mobile devices (310, 410, 510) served within the interior cells (106).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.