Invention Grant
- Patent Title: Connection establishment in inter-RAT communication system
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Application No.: US16761425Application Date: 2018-10-09
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Publication No.: US11223991B2Publication Date: 2022-01-11
- Inventor: Janne Kaasalainen , Subramanya Chandrashekar , Tsunehiko Chiba , Raghuram Reddy Krishnamurthy , Pradeep Basavapura Veerabhadra Reddy
- Applicant: Nokia Technologies Oy
- Applicant Address: FI Espoo
- Assignee: Nokia Technologies Oy
- Current Assignee: Nokia Technologies Oy
- Current Assignee Address: FI Espoo
- Agency: Nokia Technologies Oy
- Priority: IN201741040839 20171115
- International Application: PCT/FI2018/050720 WO 20181009
- International Announcement: WO2019/097110 WO 20190523
- Main IPC: H04W36/22
- IPC: H04W36/22 ; H04W76/27 ; H04W8/24 ; H04W48/18 ; H04W48/20

Abstract:
There is provided a method, comprising: detecting, by a first network node from a user equipment, a connection request to a first radio access technology, RAT; determining, before the user equipment is switched to a connected state in the first RAT, whether a second RAT is more suitable to serve the user equipment than the first RAT; and upon deciding that the second RAT is more suitable, providing the user equipment with connection information of the second RAT, wherein the connection information causes the user equipment to directly connect with the second RAT instead of the first RAT.
Information query