Network node, wireless device and methods therein relating to time division duplex configurations for narrowband Internet of Things
US10985899B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2017 |
| Grant date | Apr 20, 2021 |
| Priority date | — |
| Expiry date | Jun 30, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L5/0016
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method in a network node is provided. The method comprises determining (1304) a frame structure configuration for a narrowband Internet of Things (NB-IoT) system operating in time division duplex (TDD) mode. The frame structure comprises a plurality of subframes. The plurality of subframes comprises at least one of each of a downlink subframe, an uplink subframe, and a special subframe comprising a gap period during which no transmission occurs. The plurality of subframes is arranged such that the frame structure configuration is compatible with an uplink configuration of the NB-IOT system, e.g. having a subcarrier spacing of 3.75 kHz. The method further comprises communicating the determined frame structure configuration to a wireless device operating in the NB-IoT system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.