Rate Matching for Cell Discontinuous Reception Operations
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing resource allocation during non-active periods of cell discontinuous transmission (DTX) or discontinuous reception (DRX) operations, leading to inefficient use of signaling resources and increased latency.
Innovation Solution
A method where a user equipment (UE) receives first information for active periods and second information for non-active periods of cell DTX/DRX operations, allowing for rate matching during non-active periods using the specific second information, thereby improving resource allocation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If rate matching is performed using the same configuration for both active and non-active periods, then device complexity is reduced, but resource allocation efficiency deteriorates and signaling resources are wasted
Solution Approach 1:
The patent divides the rate matching configuration into separate configurations for active periods and non-active periods. The UE receives first information for active period rate matching and second information for non-active period rate matching, allowing independent optimization of each period's resource allocation without increasing overall system complexity
Solution Approach 2:
The patent implements dynamic rate matching configurations that adapt to different operational states. The system switches between first rate matching configuration during active periods and second rate matching configuration during non-active periods, optimizing resource allocation for each state's specific requirements
2Productivity
If separate rate matching information is provided for active and non-active periods, then resource allocation efficiency is improved, but signaling overhead increases
Solution Approach 1:
The patent creates a universal rate matching framework where a single configuration mechanism serves multiple purposes: the first information configures rate matching for active periods while the second information configures rate matching for non-active periods, both through unified RRC signaling procedures
Solution Approach 2:
The patent modifies rate matching parameters dynamically based on operational state. The network configures different rate matching parameters (such as reference signals, resource elements, or time-frequency patterns) for active versus non-active periods, allowing efficient resource allocation without requiring completely separate configuration systems
3Loss of energy
If the UE uses default rate matching during non-active periods, then signaling resources are conserved, but latency increases due to inefficient resource allocation
Solution Approach 1:
The patent applies preliminary action by configuring the second rate matching information in advance during active periods or through pre-configuration. This allows the UE to have optimized rate matching parameters ready for non-active periods, eliminating the need for default configurations and reducing latency when non-active period communications are needed
Solution Approach 2:
The system implements feedback mechanisms where the network can update the second rate matching configuration based on observed communication patterns and requirements. This ensures that the non-active period rate matching remains optimized for actual traffic needs rather than relying on static default configurations
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive first information corresponding to an active period of cell discontinuous transmission (DTX) or discontinuous reception (DRX) operation and second information corresponding to a non-active period of the cell DTX or DRX operation. The UE may rate match during the non-active period using the second information. Numerous other aspects are described.