Base station and user terminal for performing measurement and communication in unlicensed frequency bands
US11159974B2 · kind B2 · utility
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3Claims
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Key dates
| Filing date | Jun 11, 2020 |
| Grant date | Oct 26, 2021 |
| Priority date | — |
| Expiry date | Jun 11, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W72/0473
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A user equipment, an apparatus, and a method receive from a base station configuration information on a carrier aggregation where a Licensed-Assisted Access (LAA) secondary cell using unlicensed frequency is utilized, configure the carrier aggregation based on the configuration information, receive from the base station information indicating whether uplink data transmission via the LAA secondary cell is allowed, and transmit uplink data via the LAA secondary cell only in response to receiving the information indicating that uplink data transmission via the LAA secondary cell is allowed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.