SFN indication method, terminal device, and positioning server and system
US10736073B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 2, 2019 |
| Grant date | Aug 4, 2020 |
| Priority date | — |
| Expiry date | May 2, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/042
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present disclosure relates to SFN indication methods, terminal devices, and positioning servers and systems. One example method includes obtaining an SFN offset indication parameter of a cell i, sending the SFN offset indication parameter of the cell i to a terminal device, receiving the SFN offset indication parameter of the cell i from the positioning server, obtaining a frame number of a radio frame n of a cell j, and determining a phase rotation parameter of the cell i based on the frame number of the radio frame n of the cell j and the SFN offset indication parameter of the cell i, or obtaining a sequence initialization factor used by a narrowband positioning reference signal (NPRS) on a radio frame m of the cell i, and obtaining the NPRS on the radio frame m of the cell i based on the sequence initialization factor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.