Delayed radio domain fallback
US11310700B2 · kind B2 · utility
3Cited by
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20Claims
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Key dates
| Filing date | Aug 28, 2019 |
| Grant date | Apr 19, 2022 |
| Priority date | — |
| Expiry date | Oct 3, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W36/00837
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A fifth generation (5G) radio access network (RAN) can determine that a user equipment (UE) should fall back to engaging in a communication session over an LTE-based Evolved Packet System (EPS) instead of a 5G system. However, to avoid interrupting setup operations that may be occurring separately for that communication session in an IP Multimedia Subsystem (IMS) apart from the 5G system, the EPS fallback can be delayed such that setup in the IMS can proceed at least to a point at which IMS signaling messages are less likely to be undeliverable due to the EPS fallback.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.