UE-Specific Methods for NR/LTE/3G/2G Call Performance Improvement During IRAT Re-selection Procedure

UE-Specific Methods for NR/LTE/3G/2G Call Performance Improvement During IRAT Re-selection Procedure

Methods, apparatuses, and systems are disclosed for reducing latency during IRAT re-selection in the presence of race conditions. When a UE initiates an IRAT re-selection procedure, and concurrently initiates a call setup procedure, a race condition may result, in which the UE's NAS layer prior...

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Hauptverfasser: Jeffery, Mark, Goldhofer, Franz, Singh, Ashish Kumar, Venugopal, Avinash, Pangi, Pradeep, Gupta, Anshul Kumar
Format: Patent
Sprache:eng
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ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
WIRELESS COMMUNICATIONS NETWORKS
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creator Jeffery, Mark
Goldhofer, Franz
Singh, Ashish Kumar
Venugopal, Avinash
Pangi, Pradeep
Gupta, Anshul Kumar
description Methods, apparatuses, and systems are disclosed for reducing latency during IRAT re-selection in the presence of race conditions. When a UE initiates an IRAT re-selection procedure, and concurrently initiates a call setup procedure, a race condition may result, in which the UE's NAS layer prioritizes the call setup procedure, while the RRC layer prioritizes the IRAT re-selection procedure. This may result in failure of the call setup procedure, which may lead to a user needing to re-initiate the call, resulting in poor user experience and significant latency. To prevent this, the UE may cache a message and/or other information relevant to the call setup procedure, until the IRAT re-selection procedure is complete. The UE may then proceed to complete the call setup procedure. The message may be cached, e.g., at the NAS layer or the RRC layer of the cellular modem, or by an application processor.
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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
WIRELESS COMMUNICATIONS NETWORKS
title UE-Specific Methods for NR/LTE/3G/2G Call Performance Improvement During IRAT Re-selection Procedure
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