Resource Request Indication for Low-Delay Data Transmission
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Solution Overview
Problem
In evolved universal terrestrial radio access networks (E-UTRAN), user equipment (UE) faces delays in resource allocation for high-delay requirement services due to the existing resource request mechanism, leading to degraded user experience.
Innovation Solution
A resource request method where UE sends a resource request indication to the network side device when service data is received or when a preset data condition is met, allowing for timely resource allocation and reducing delays by using buffer status reports (BSR) or buffer level indications over dedicated time frequency resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the existing trigger mechanism for BSR reporting is used, then the resource allocation process follows standard procedures, but the data transmission delay increases and user experience degrades for high-delay requirement services
Solution Approach 1:
The patent applies preliminary action by enabling the UE to send a resource request indication immediately upon receiving service data or when buffer data meets preset conditions, rather than waiting for the trigger mechanism to activate. This proactive approach allows the network side device to allocate resources in advance, significantly reducing data transmission delay for high-delay requirement services while maintaining manageable operational complexity through preset triggering conditions
2Reliability
If the UE waits for BSR sending conditions to be satisfied, then resource requests are sent according to standard procedures, but appropriate time frequency resources cannot be obtained timely for high-delay services
Solution Approach 1:
The patent implements dynamics by allowing the UE to flexibly determine when to send resource request indications based on preset conditions (receiving service data or buffer data size meeting thresholds), rather than following rigid trigger mechanisms. This dynamic approach ensures reliable resource allocation for high-delay services by adapting the request timing to actual data arrival and buffer status, reducing resource acquisition time while maintaining allocation reliability
Data Source
AI summary
Embodiments of the present disclosure describe a resource request method and a device, to implement a low-delay resource request and then ensure low-delay data transmission of UE, so as to improve a user experience. An embodiment of the resource request method may include receiving, by UE, service data. The method may also include when the service data is received or when a size of preset data satisfies a preset sending condition, sending a resource request indication to a network side device, where the resource request indication is used to instruct the network side device to allocate, to the UE, a resource for sending the service data.