CoMP Signaling for Reference Signal and Data Region Configuration
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Solution Overview
Problem
In CoMP transmission systems, user equipment (UE) lacks awareness of transmission points and PDCCH region sizes in different cells, leading to inefficient resource mapping and increased overhead due to worst-case configuration assumptions.
Innovation Solution
A signaling scheme that provides UE with information about reference signal configurations and data region sizes for each cell participating in CoMP, allowing optimal resource mapping by indicating which configurations to assume for data transmission, thereby reducing overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If UE uses worst-case configuration assumptions for CoMP transmission, then reliability is improved, but overhead increases and resource utilization efficiency deteriorates
Solution Approach 1:
The patent applies dynamics by transitioning from static worst-case assumptions to dynamic configuration indication. The eNB dynamically indicates which reference signal configurations and data region sizes should be assumed for CoMP transmission, allowing the UE to adapt its resource mapping assumptions to actual transmission conditions rather than using fixed conservative defaults. This dynamic adaptation reduces overhead while maintaining reliability.
Solution Approach 2:
The patent implements feedback mechanisms where the eNB provides configuration information about reference signals and data regions to the UE. This feedback loop allows the UE to receive actual transmission parameters from the network and adjust its resource mapping accordingly, replacing blind worst-case assumptions with informed adaptive decisions based on real-time configuration feedback.
2Reliability
If UE assumes worst-case configuration for resource mapping, then reliability is improved, but productivity deteriorates due to inefficient resource utilization
Solution Approach 1:
The patent transforms static conservative resource mapping assumptions into dynamic adaptive mappings. By receiving configuration indications from the eNB about actual reference signal positions and data region sizes, the UE can dynamically adjust its resource mapping to match real transmission conditions, thereby optimizing resource utilization efficiency while maintaining reliability through informed assumptions rather than worst-case defaults.
Solution Approach 2:
The patent changes the parameters of resource mapping by updating the UE's assumptions about data region sizes and reference signal configurations. Instead of using fixed worst-case parameter values, the system dynamically adjusts these parameters based on eNB configuration indications, allowing optimal resource mapping that adapts to actual transmission conditions and improves productivity.
3Productivity
If UE is provided with detailed configuration information for each cell, then resource mapping efficiency is improved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by organizing configuration information in a structured, cell-specific manner. Each cell's reference signal configuration and data region size is independently indicated and managed, allowing the UE to process and apply configurations systematically. This segmented approach improves resource mapping efficiency by providing precise cell-level control while managing complexity through organized information structure rather than monolithic configuration handling.
Data Source
AI summary
Information about a set of cells potentially taking part in coordinated multipoint transmission is obtained, information about at least one of reference signal configuration and data region size configuration for each of the set of cells is obtained, further an indication of which of the reference signals configuration and the data region size configuration should be assumed in resource mapping for data is obtained, and data according to the resource mapping is received. Information about at least one of reference signal configuration and data region size configuration for each cell of a set of cells potentially taking part in coordinated multipoint transmission is provided, and an indication of which of the reference signals configuration and the data region size configuration should be assumed in resource mapping for data is provided.