Reference Signal Timing Offset for Multi-Cell Channel Measurement
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Solution Overview
Problem
In a multi-cell scenario, there is a lack of solutions for implementing channel and interference measurements when reference signal resources for channel and interference measurements correspond to different cells, leading to challenges in signal transmission time differences between cells and user equipment (UE).
Innovation Solution
A method and apparatus for a terminal and network-side device to obtain and utilize parameter information associated with reference signals for channel and interference measurements, allowing accurate measurement and reporting of channel quality and interference levels by associating and adjusting timing of these signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If reference signal resources for channel measurement and interference measurement are configured for different cells, then measurement capability is enhanced, but signal transmission time differences cause measurement accuracy degradation
Solution Approach 1:
The patent changes the timing parameters of reference signals by introducing a timing offset parameter that aligns the reception times of channel measurement RS and interference measurement RS from different cells, thereby resolving the measurement accuracy degradation caused by transmission time differences while maintaining the enhanced measurement capability
Solution Approach 2:
The patent introduces a timing alignment mechanism as an intermediary that mediates between the different transmission timings of reference signals from different cells, ensuring that both channel measurement and interference measurement signals arrive at the terminal at aligned times for accurate joint measurement
2Measurement precision
If reference signal timing is aligned across different cells, then measurement accuracy is improved, but system complexity increases
Solution Approach 1:
The network configures the timing offset parameters through self-service mechanisms where the system automatically adjusts reference signal timings based on pre-configured parameters, avoiding complex real-time synchronization protocols and reducing overall system complexity while maintaining measurement accuracy
3Reliability
If channel measurement and interference measurement use different cells, then measurement reliability is improved, but implementation difficulty increases
Solution Approach 1:
The patent segments the measurement process into distinct configurable components - channel measurement RS configuration, interference measurement RS configuration, and timing offset configuration - allowing independent optimization of each segment while simplifying the overall implementation through modular parameter management
Data Source
AI summary
A measurement method includes obtaining first parameter information corresponding to a first target RS. The first target RS includes at least one of a first RS or a second RS. The first RS is used for channel measurement, the second RS is used for interference measurement. The first RS is associated with the second RS, and the first RS and the second RS are corresponding to different first information; and measuring the second RS according to the first parameter information corresponding to the first target RS.