Seamless and resource efficient roaming for group call services on broadcast/multicast networks
US9681419B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 15, 2014 |
| Grant date | Jun 13, 2017 |
| Priority date | — |
| Expiry date | Nov 15, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/042
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Various aspects and embodiments may provide seamless and resource efficient roaming for group call services on broadcast/multicast networks. In particular, upon a user equipment (UE) roaming or detecting an imminent move from a current Public Land Mobile Network (PLMN) to a Visited PLMN (VPLMN), an application server in a Home PLMN associated with the UE may determine whether to establish a multicast bearer in the VPLMN if the UE has pre-registered for group call services in the VPLMN and provide the UE with information about bearers that will support the group call services in the VPLMN. For example, the multicast bearer may be established in the VPLMN if a number of users actively participating in the VPLMN exceeds a threshold, or the group call services may alternatively be supported over unicast service only if the number of actively participating users in the VPLMN is below the threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.