Systems and methods for enhanced MBMS with MIMO support
US10038484B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2015 |
| Grant date | Jul 31, 2018 |
| Priority date | — |
| Expiry date | Jun 17, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/022
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Systems and methods use multiple spatial layers for physical multicast channel transmission. Certain embodiments introduce additional multimedia broadcast multicast service reference signals that support more than one antenna ports for multicast broadcast single frequency network transmissions. To reduce channel estimation complexity due to the multicast broadcast single frequency network reference signal design, resource elements of the multicast broadcast single frequency network reference signals may have a nested structure. To assist modulation and coding scheme selection, a user according to certain embodiments also independently reports block error rate measurements for each spatial layer of the multicast channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.