Hi Experts.
In case of failures due to “UE capability inquiry time out” that represent weak uplink coverage, any suggestions?
Any feature / parameters recommendations to improve this scenario?
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Check Timer Settings: Ensure that the timers related to UE capability procedures (e.g., timers for RRC configuration or NAS signaling) are configured correctly and provide enough time for the UE to respond.
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Network Configuration: Verify the network settings and ensure that there are no issues with the signaling flow. Check for any misconfigurations in the core network elements, including the MME/AMF or the gNB.
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UE Behavior: Investigate the UE logs to identify if the UE is facing any issues while processing the capability inquiry. Ensure that the UE is capable of handling the requested capabilities and that it adheres to the 3GPP standards for capability signaling.
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Signal Quality: Poor signal quality can lead to increased delays or timeouts. Ensure that the radio conditions are favorable, and there is no significant interference affecting the signaling procedures.
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Retry Mechanism: Implement a retry mechanism to handle intermittent failures. This can involve re-sending the UE capability inquiry message if no response is received within the expected time frame.
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Firmware and Software Updates: Ensure that both the network and UE are running on the latest firmware and software versions. Updates often contain fixes for known issues that could be causing the timeouts.
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Load and Performance: High load on network elements can lead to processing delays. Ensure that the network is not overloaded and is performing optimally.
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Simple answer no.
If NW doesn’t receive UE response then it’s just coverage issue.
In past I’ve looked at changing close loop power control parameters to enable UE to quickly get to its max power but those optimisation weren’t very successful either in my case.
You can look at that option.