Enhanced PRACH for standalone contention based communications including unlicensed spectrum
US10136452B2 · kind B2 · utility
16Cited by
8References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 22, 2016 |
| Grant date | Nov 20, 2018 |
| Priority date | — |
| Expiry date | Sep 2, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/042
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Additional improvements to the design of enhanced physical random access channel (ePRACH) procedures are disclosed for communications systems having contention-based shared spectrum including unlicensed frequency bands. The additional improvements address the uncertainty of transmission in listen before talk (LBT)-based communications and cooperation with other radio access technologies competing for the same frequency spectrum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.