Radio communication scheme for providing multimedia broadcast and multicast services (MBMS)
US7623483B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2003 |
| Grant date | Nov 24, 2009 |
| Priority date | — |
| Expiry date | Jan 21, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W76/40
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A radio communication scheme applicable to UMTS providing packet data services, such as multimedia broadcast and multicast services (MBMS), to one or more users by modifying (augmenting) certain existing radio communication protocols while employing a new transport channel (a point-to-multipoint DSCH), and/or by establishing new physical downlink shared channels (C-PDSCH and D-PDSCH). An RLC layer is provided in a single CRNC so that the same MBMS can be transmitted to a plurality of terminals via a point-to-multipoint DSCH, without having to repetitively provide many RLC layers in many SRNCs. Alternatively, a C-PDSCH (physical downlink shared channel for control) and a D-PDSCH (physical downlink shared channel for data) are established to allow periodic transmission of MBMS, permitting users to simultaneously access one or more MBMS.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.