OTDOA (observed time difference of arrival) positioning enhancement by using heterogeneous reference signals
US10627478B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2015 |
| Grant date | Apr 21, 2020 |
| Priority date | — |
| Expiry date | Mar 10, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S5/0236
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Techniques for observed time difference of arrival (OTDOA) positioning based on heterogeneous reference signals (RSs) are discussed. One example apparatus configured to be employed within a user equipment (UE) comprises receiver circuitry, a processor, and transmitter circuitry. The receiver circuitry can receive, from each of a plurality of evolved Node Bs (eNBs), one or more RSs of each of a plurality of distinct types of RSs. The processor can determine, for each of the eNBs, a time of arrival (TOA) of the one or more RSs of each of the plurality of distinct types of RSs; and compute, for each of the eNBs, a reference signal time difference (RSTD) based at least in part on the TOAs of the one or more RSs of each of the plurality of distinct types of RSs. The transmitter circuitry can transmit the RSTD computed for each of the eNBs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.