Random access process in carrier aggregation
US10420147B2 · kind B2 · utility
10Cited by
0References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 5, 2016 |
| Grant date | Sep 17, 2019 |
| Priority date | — |
| Expiry date | Aug 18, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W76/27
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A MAC layer instructs a physical layer to transmit a preamble as a part of a random access (RA) procedure on a licensed assisted access (LAA) cell. The wireless device performs an LBT for transmission of the preamble. The wireless device considers the RA procedure unsuccessfully completed if a first condition based on a first counter is met. The wireless device considers the RA procedure unsuccessfully completed if a condition based on a second counter is met.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.