Reference Signal Transmission Scheduling to Reduce Signaling Overhead
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Solution Overview
Problem
Existing reference signal transmission methods in wireless communication systems suffer from high signaling overhead, resource inefficiency, and lack of flexibility due to periodic, semi-persistent, and aperiodic signal configurations, leading to increased complexity and potential signaling storms.
Innovation Solution
A method for configuring reference signal resources with specific time and frequency domain positions, allowing for flexible transmission and reception of reference signals, including options for periodic, semi-persistent, and aperiodic signals, and controlling the number of transmissions through DCI signaling to reduce unnecessary overhead and signaling storms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If reference signals are transmitted periodically to maintain real-time channel state information, then measurement precision is improved, but signaling overhead increases and resources are occupied
Solution Approach 1:
The patent applies dynamics by making the reference signal transmission configurable between periodic and aperiodic modes. The network device can dynamically adjust the transmission timing based on channel conditions and service requirements, allowing the system to adapt between frequent transmissions for accuracy and sparse transmissions for resource efficiency
Solution Approach 2:
The patent changes the transmission parameter from fixed periodic intervals to flexible configurable timing. By adjusting parameters such as time domain symbols, frequency domain positions, and transmission occasions, the system can optimize the balance between measurement precision and signaling overhead according to specific scenarios
2Reliability
If reference signals are transmitted frequently to track time-varying channels, then reliability is improved, but device complexity increases due to repeated procedures
Solution Approach 1:
The patent introduces dynamic configurability in reference signal transmission, allowing the network device to adjust transmission frequency and timing based on channel volatility. This reduces the need for complex repeated procedures by adapting the transmission strategy to match actual channel conditions
Solution Approach 2:
The patent applies preliminary action by pre-configuring reference signal resources including time domain symbols, frequency domain positions, and transmission occasions. This preparation reduces the need for complex real-time decisions and repeated configuration procedures during actual transmission
3Adaptability or versatility
If multiple reference signal transmissions are configured to improve flexibility, then adaptability is improved, but resource occupancy increases
Solution Approach 1:
The patent segments reference signal resources into distinct time domain symbols and frequency domain positions. This segmentation allows the system to allocate resources efficiently across different dimensions, providing flexibility in transmission scheduling while minimizing overall resource occupancy through selective activation
Solution Approach 2:
The patent applies partial action by transmitting reference signals only when necessary based on configured criteria. Instead of continuous or excessive transmissions, the system uses selective transmission on specific occasions, maintaining flexibility while reducing resource occupancy
Data Source
AI summary
A reference signal transmission method, applied to a first communication node, where the method includes: configuring configuration information of a reference signal resource, wherein the configuration information comprises a time domain symbol and a frequency domain position of a reference signal; transmitting the reference signal on the reference signal resource according to the configuration information.