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IoT systems require a wireless infrastructure that supports 5G devices, including handovers between heterogeneous and/or small cell radio access networks. These networks are subject to increased radio link failures and loss of IoT network function. 3GPP new radio (NR) applications include multihoming, i.e., simultaneously connecting devices, and handover, i.e., changing the point of access to the network. This work leverages the open radio access network (O-RAN) alliance, which specifies a new open architecture with intelligent controllers, to improve handover management. A new feedback-based time-to-trigger (TTT) handover mechanism is introduced. Improved throughput and reduced radio link failures over other techniques were achieved.
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Demystifying Secondary Radio Access Failures in 5G
In this work, we have conducted a measurement study with three US operators to reveal three types of problematic failure handling on secondary radio access which have not been reported before. Compared to primary radio access failures, secondary radio access failures do not hurt radio access availability but significantly impact data performance, particularly when 5G is used as secondary radio access to boost throughput. Improper failure handling results in significant throughput loss, which is unnecessary in most instances. Datasets are available at https:// github.com/mssn/ scgfailure.
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- Award ID(s):
- 1750953
- PAR ID:
- 10512987
- Publisher / Repository:
- ACM
- Date Published:
- Journal Name:
- HOTMOBILE '24: Proceedings of the 25th International Workshop on Mobile Computing Systems and Applications
- ISBN:
- 9798400704970
- Page Range / eLocation ID:
- 114 to 120
- Format(s):
- Medium: X
- Location:
- San Diego CA USA
- Sponsoring Org:
- National Science Foundation
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- Free Publicly Accessible Full Text
-
Accepted Manuscript1.0
- Conference Paper:
- https://doi.org/10.1145/3638550.3641125
