Wireless device, a network node and methods therein for transmission at a changed coverage enhancement (CE) level in a random access procedure
US11166316B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 10, 2017 |
| Grant date | Nov 2, 2021 |
| Priority date | — |
| Expiry date | Jan 7, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W74/0838
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A wireless device and a method therein for performing a transmission at a changed Coverage Enhancement (CE) level in a random access procedure. The wireless device receives a random access order indicating a first preamble and a first carrier. Further, the wireless device transmits, to a network node, the first preamble on the first carrier using a first CE level. In the absence of a valid response after a number of transmissions, the wireless device determines a second CE level that is different from the first CE level. Thereafter, the wireless device selects, in a predictable way for the network node, a carrier that is supporting the second CE level, and transmits, to the network node, a preamble on the carrier using the second CE level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.