Dynamic Downlink Bundling Size Configuration in Wireless Systems
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Solution Overview
Problem
Current mobile communication systems face challenges in supporting high-speed data services, large data traffic, increased user connections, low latency, and energy efficiency, necessitating advanced techniques such as small cell enhancement, dual connectivity, and non-orthogonal multiple access to meet the demands of next-generation wireless communication.
Innovation Solution
A method for dynamically configuring the bundling size of a downlink shared channel based on downlink control information transmitted by a base station, allowing user equipment to adjust its configuration according to indicator values and threshold values for efficient resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a fixed bundling size is used for downlink shared channel, then configuration complexity is reduced, but data transmission efficiency deteriorates due to inability to adapt to varying network conditions
Solution Approach 1:
The bundling size is changed from a fixed configuration to a dynamic one that can be adjusted based on network conditions. The base station determines the bundling size according to channel state information, traffic load, and other parameters, allowing the system to adapt to varying conditions and optimize data transmission efficiency while maintaining manageable configuration complexity through centralized control.
2Reliability
If larger bundling size is used, then channel estimation performance is improved, but latency increases due to larger processing blocks
Solution Approach 1:
The bundling size is dynamically adjusted based on channel conditions and latency requirements. When channel conditions are good and latency is not critical, larger bundling sizes are used to improve channel estimation performance. When latency requirements are stringent or channel conditions deteriorate, the bundling size is reduced to minimize processing time and meet latency targets, thus balancing reliability and time loss.
3Loss of time
If smaller bundling size is used, then latency is reduced, but channel estimation performance deteriorates
Solution Approach 1:
The system dynamically selects bundling size based on real-time channel state information and latency requirements. When low latency is prioritized, smaller bundling sizes are selected to reduce processing time. When channel estimation performance is more critical, larger bundling sizes are chosen. This dynamic adaptation allows the system to optimize the trade-off between latency and reliability based on current network conditions.
4Productivity
If resource allocation is optimized dynamically, then data transmission efficiency is improved, but control signaling overhead increases
Solution Approach 1:
The bundling size configuration is dynamically adjusted by the base station based on downlink control information (DCI) that includes indicators for the bundling size. This allows efficient resource allocation adapted to current network conditions while managing signaling overhead through compact indicator fields in DCI rather than full configuration messages, thus optimizing data transmission efficiency with controlled signaling overhead.
Data Source
AI summary
Provided are a method for a UE to transmit and receive data in a wireless communication system and an apparatus therefor. The UE receives downlink control information from a base station. The downlink control information includes an indicator for configuring the bundling size of a downlink shared channel. The UE receives downlink data from the base station through a downlink shared channel configured based on the downlink control information. The bundling size may be configured based on a value of the indicator.