Signaling for preamble used for random access
US8305964B2 · kind B2 · utility
5Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2008 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | Aug 14, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2607
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods for allocating and choosing dedicated signatures for random access are provided. Options for allocating dedicated signatures include allocating the dedicated signatures from unused space of a random signature root index when there is unused space and allocating more dedicated signatures from the same root index using the same time/frequency resources if additional signatures are needed, and reserving some preambles from contention-based random access preambles from both sets of preambles. The dedicated signatures may be reserved in each of two sets of preambles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.