Invention Grant
- Patent Title: Redirection mechanism to support network sharing/slicing with CU-DU split
-
Application No.: US17282822Application Date: 2019-10-04
-
Publication No.: US11595853B2Publication Date: 2023-02-28
- Inventor: Alexander Vesely , Matteo Fiorani , Gunnar Mildh
- Applicant: Telefonaktiebolaget LM Ericsson (publ)
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee Address: SE Stockholm
- Agency: Withrow & Terranova, PLLC
- International Application: PCT/IB2019/058494 WO 20191004
- International Announcement: WO2020/070720 WO 20200409
- Main IPC: H04W28/16
- IPC: H04W28/16 ; H04W76/18 ; H04W48/00 ; H04W74/00 ; H04W84/04

Abstract:
Systems and methods for redirecting Radio Resource Control (RRC) messages in a wireless system that uses Central Unit (CU)/Distributed Unit (DU) splitting and either network sharing or network slicing are disclosed. In some embodiments, a method performed by a shared Distributed Unit (DU) comprises receiving a RRC message from a User Equipment (UE) and sending a first DU-to-Central Unit (CU) message to a first CU, where the first DU-to-CU message comprises the RRC message. The method further comprises either obtaining an indication that the first CU is a wrong CU for the RRC message or determining that the first CU is a wrong CU for the RRC message. The method further comprises sending another DU-to-CU message to a second CU, where the other DU-to-CU message comprises the RRC message or a RRC message related to the RRC message.
Public/Granted literature
- US20210352531A1 REDIRECTION MECHANISM TO SUPPORT NETWORK SHARING/SLICING WITH CU-DU SPLIT Public/Granted day:2021-11-11
Information query