Control-less data transmission for narrow band internet of things
US10306615B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2016 |
| Grant date | May 28, 2019 |
| Priority date | — |
| Expiry date | Feb 23, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W72/21
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Various methods of control-less data transmission for NB-IoT/NR devices have been proposed to improve efficiency and system capacity in cellular networks. In a first embodiment, a PDCCH-less operation is performed between eNB and UE. UE will blindly decode some PDSCH subframes according to the parameters configured by higher layer. In a second embodiment, a PDCCH-lite operation is performed between eNB and UE. UE may use one PDCCH to schedule more than one subsequent PDSCH resources. In a third embodiment, an extremely compact DCI (E-DCI) format is used between eNB and UE. When the same assignment parameters are used by the eNB for the UE, DCI overhead may be reduced by E-DCI. In a fourth embodiment, direct data transmission in PDCCH is performed between eNB and UE. Data transmission is directly transmitted by PDCCH with a new DCI format.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.