Synchronization in a beamforming system
US9882620B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 2015 |
| Grant date | Jan 30, 2018 |
| Priority date | — |
| Expiry date | May 29, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2655
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A beamforming system synchronization architecture is proposed to allow a receiving device to synchronize to a transmitting device in time, frequency, and spatial domain in the most challenging situation with very high pathloss. A periodically configured time-frequency resource blocks in which the transmitting device uses the same beamforming weights for its control beam transmission to the receiving device. A pilot signal for each of the control beams is transmitted in each of the periodically configured time-frequency resource blocks. Pilot symbols are inserted into pilot structures and repeated for L times in each pilot structure. The L repetitions can be implemented by one or more Inverse Fast Fourier Transfers (IFFTs) with corresponding one or more cyclic prefix (CP) lengths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.