Invention Grant
- Patent Title: Network-assisted fallback to contention-based random access
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Application No.: US17632515Application Date: 2019-08-14
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Publication No.: US12289791B2Publication Date: 2025-04-29
- Inventor: Ahmad Awada , Muhammad Naseer-Ul-Islam , Andreas Lobinger
- Applicant: Nokia Technologies Oy
- Applicant Address: FI Espoo
- Assignee: Nokia Technologies Oy
- Current Assignee: Nokia Technologies Oy
- Current Assignee Address: FI Espoo
- Agency: Barta Jones, PLLC
- International Application: PCT/EP2019/071860 WO 20190814
- International Announcement: WO2021/028047 WO 20210218
- Main IPC: H04W76/30
- IPC: H04W76/30 ; H04W36/00 ; H04W72/02 ; H04W74/08 ; H04W74/0833

Abstract:
There are provided measures for network-assisted fallback to contention-based random access. Such measures exemplarily comprise, at a target access point being a target of a handover of a terminal connected to at least one net-receiving work slice from a source access point, receiving a handover request including information on said at least one network slice, selecting, from a plurality of pools of random access channel resources to be used for contention-based random access processing, a first pool of random access channel resources to be used by said terminal upon fallback to contention-based random access during a handover processing, wherein said selecting is based on at least one of network slice related information on terminals in radio resource control idle mode, on terminals in radio resource control inactive mode, and/or on terminals in radio resource control connected mode, and of available random access channel resources, and transmitting a handover request acknowledgement message including handover assistance information indicative of said first pool of random access channel resources.
Public/Granted literature
- US20220279408A1 NETWORK-ASSISTED FALLBACK TO CONTENTION-BASED RANDOM ACCESS Public/Granted day:2022-09-01
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