Method and device for providing circuit switching service in wireless communication system
US10736012B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2017 |
| Grant date | Aug 4, 2020 |
| Priority date | — |
| Expiry date | Apr 7, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W76/19
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Disclosed are a communication technique for merging, with IoT technology, a 5G communication system for supporting a data transmission rate higher than that of a 4G system; and a system therefor. The present disclosure can be applied to intelligent services (for example, smart home, smart building, smart city, smart car or connected car, healthcare, digital education, retail business, security and safety related services, and the like) on the basis of 5G communication technology and IoT related technologies. The present disclosure relates to a method by which a terminal receives a circuit switching (CS) service, and according to the present disclosure, the method by which a terminal receives a CS service, comprises the steps of: transmitting a CS fallback (CSFB) request to a mobility management entity (MME) through a first base station in order to use the CS service; detecting the failure of a radio resource connection to the first base station; and transmitting, to a second base station, a radio resource re-establishment related message including a CSFB indicator for identifying the CSFB request.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.