Channel reservation for operation in an unlicensed spectrum
US9794821B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2014 |
| Grant date | Oct 17, 2017 |
| Priority date | — |
| Expiry date | Mar 27, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W74/006
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Embodiments described herein relate generally to a communication between a user equipment (“UE”) and an evolved Node Bs (“eNBs”) in a plurality of frequency bands. An eNB may transmit cross-carrier, cross-subframe scheduling information to a UE in a licensed frequency band. In response reception of the scheduling information, the UE may sense a wireless transmission medium to determine if the medium is idle. If the medium is idle, the UE may generate and transmit a request to reserve the medium in the unlicensed frequency band (e.g., a Clear-to-Send message). The eNB may transmit downlink data to the UE in the unlicensed frequency band. Other embodiments may be described and/or claimed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.