Downlink time tracking in a NB-LOT device with reduced sampling rate
US10454744B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 10, 2017 |
| Grant date | Oct 22, 2019 |
| Priority date | — |
| Expiry date | Feb 10, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2695
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The solution presented herein discloses a method of transmitting first symbols via a transceiver comprising a receiver and a transmitter. The method comprises determining a timing discrepancy between a previous reference timing and a current reference timing. The current reference timing is established responsive to a reduced sampling rate used to process second symbols received by the receiver, where the reduced sampling rate is less than a minimum sampling rate at which an inter-symbol distance between the second symbols can be represented by an integer number of samples. The method further comprises adjusting the current reference timing responsive to the timing discrepancy to generate an adjusted reference timing, and determining an uplink transmission timing responsive to the adjusted reference timing. The method further comprises transmitting the first symbols via the transmitter according to the determined uplink transmission timing. Corresponding transceiver, transceiver apparatus, and computer program product are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.