Dynamic Multipoint Communication Configuration for LTE-Advanced CoMP
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Solution Overview
Problem
Current technologies lack detailed solutions for supporting dynamic multipoint communication configuration in LTE-Advanced, particularly in CoMP (Coordinated Multipoint Transmission) scenarios, which require efficient switching between single and multi-cell transmission settings to manage downlink reference signals effectively.
Innovation Solution
An apparatus and method that define and switch between two communication transmission sets for cellular-based communication, involving a single cell and a dual-cell configuration with overlapping coverage, using vertical shifts in common reference signal patterns and antenna port considerations, facilitated by radio resource control signaling and downlink assignment mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If dynamic multipoint communication configuration is implemented in LTE-Advanced CoMP scenarios, then communication efficiency and flexibility are improved, but system complexity and implementation difficulty increase
Solution Approach 1:
The patent segments the communication configuration into multiple transmission sets, where each set corresponds to a specific multipoint transmission scenario (e.g., single-cell, two-cell, three-cell CoMP). This segmentation allows the system to handle complex multipoint communications by breaking them down into manageable, pre-configured transmission sets, thereby improving communication efficiency while controlling system complexity through modular configuration management.
Solution Approach 2:
The patent implements dynamic switching between different transmission sets based on current communication conditions and requirements. The system can dynamically select and switch between single-cell and multi-cell transmission configurations, allowing flexible adaptation to changing network conditions while maintaining manageable complexity through standardized switching mechanisms and pre-defined transmission set templates.
2Adaptability or versatility
If multiple transmission sets are defined for different cell configurations, then adaptability to various CoMP scenarios is improved, but configuration complexity and signaling overhead increase
Solution Approach 1:
The patent creates universal transmission set templates that can be applied across different CoMP scenarios. Each transmission set is designed with universal parameters and structures that can accommodate various cell configurations (single-cell, two-cell, three-cell) through parameter instantiation rather than requiring entirely separate configurations. This universality improves adaptability while reducing configuration complexity by reusing the same template structure across different scenarios.
Solution Approach 2:
The patent manages configuration complexity by using parameter changes within a unified transmission set framework. Instead of creating entirely separate configurations for different CoMP scenarios, the system adjusts specific parameters (such as cell identities, resource allocations, and reference signal configurations) within the same transmission set template. This approach maintains high adaptability while minimizing configuration overhead through parameterized configuration management.
3Loss of time
If fast switching between single-cell and multi-cell transmission is enabled, then latency is reduced, but control signaling complexity increases
Solution Approach 1:
The patent reduces latency by performing preliminary configuration of multiple transmission sets in advance. Before actual data transmission begins, the system pre-configures and stores multiple transmission sets corresponding to different CoMP scenarios. When switching between single-cell and multi-cell transmission is needed, the system can immediately activate a pre-configured transmission set without time-consuming reconfiguration, thereby reducing latency while managing signaling complexity through advance preparation.
Solution Approach 2:
The patent uses copying mechanisms to reduce switching latency. Pre-configured transmission set templates can be copied and instantiated for different scenarios without requiring complete reconfiguration. The system can replicate and adapt existing transmission set configurations for new scenarios, enabling fast switching while minimizing control signaling overhead through template-based copying rather than de novo configuration.
Data Source
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AI summary
An apparatus, method and computer program product for supporting dynamic multipoint communication configuration stations comprise defining at least two different communication transmission sets for cellular-based communication between base station and terminal, wherein the communication transmission sets are related to a downlink reference signal configuration; and assigning a communication transmission set for use in a current transmission related to the cellular-based communication.