UE Capability Indication for Scheduling Configuration
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Solution Overview
Problem
Current wireless communication systems face configuration errors and RRC connection failures due to the lack of support for faster scheduling mechanisms in User Equipment (UE), which are not universally implemented by vendors, leading to inconsistent network performance and resource waste.
Innovation Solution
A method where User Equipment (UE) transmits capability information indicating supported scheduling mechanisms, and the base station configures these mechanisms accordingly, including options like semi-persistent scheduling, transmission disable mechanisms, and response information mechanisms for resource allocation and release, to ensure consistent and efficient resource management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the base station configures faster scheduling mechanisms (such as semi-persistent scheduling) for all UEs, then network transmission performance and time-delay requirements are improved, but configuration errors and RRC connection failures occur when UEs do not support these mechanisms
Solution Approach 1:
The patent introduces capability indication parameters (feature flags) that allow the UE to report its support status for faster scheduling mechanisms. The base station uses these parameter values to determine configuration strategies, transitioning from a fixed configuration approach to a dynamic one based on reported capability parameters.
Solution Approach 2:
The patent makes the scheduling mechanism configuration dynamic by allowing UEs to report their capabilities and enabling the base station to adapt its configuration decisions based on individual UE support status. This transforms the static configuration approach into a dynamic, capability-based configuration system.
2Loss of time
If the base station allocates resources in advance through pre-scheduling, then data transmission time-delay is reduced, but resource waste and uplink interference increase when UEs transmit empty data packets without service data
Solution Approach 1:
The patent implements feedback mechanisms where UEs report their data transmission status and capability information to the base station. The base station uses this feedback to dynamically adjust pre-scheduling allocations, enabling it to distinguish between UEs that need pre-scheduling and those that would waste resources transmitting empty packets.
Solution Approach 2:
The patent applies different scheduling strategies to different UEs based on their individual capabilities and data status. Instead of uniform pre-scheduling for all UEs, the system selectively applies pre-scheduling only to UEs that support and need it, while using traditional scheduling for others, thereby optimizing resource allocation locally for each UE.
3Loss of substance
If the base station releases configured resources when UE has no data, then resource waste is reduced, but synchronization problems occur when allocation and release timing are inconsistent
Solution Approach 1:
The patent uses feedback from UEs about their data status to trigger resource release decisions. The base station monitors UE data activity and releases pre-scheduling resources only when feedback indicates the UE has no data, ensuring synchronization between allocation and release timing based on actual UE needs rather than arbitrary time intervals.
Data Source
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AI summary
The invention provides a base station, user equipment (UE), and a method associated with transmitting or receiving UE capability information. The method used in the UE comprises: transmitting UE capability information comprising an indication indicating a specific scheduling mechanism supported by the UE; and receiving a configuration message comprising configuration information associated with the specific scheduling mechanism.