CoMP and Carrier Aggregation Configuration for UE Complexity Reduction
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Solution Overview
Problem
Current wireless communication systems, particularly in LTE, face challenges in efficiently supporting CoMP operations and carrier aggregation due to increased UE complexity and CSI feedback load, which affects network performance and mobility handling.
Innovation Solution
The implementation of configuration options for CoMP and CA, including supporting CoMP on multiple or single component carriers, limiting CSI processes, and flexible CSI reporting configurations, to reduce UE complexity and enhance network flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If CoMP operations are supported on multiple component carriers with full CSI feedback, then network performance and capacity are improved, but UE complexity and CSI feedback load increase significantly
Solution Approach 1:
The patent segments the CoMP operation support by introducing configuration options that allow CoMP to be enabled on specific component carriers (single CC or multiple CCs) rather than requiring full CoMP support across all carriers. This segmentation allows the network to selectively apply CoMP operations where beneficial, reducing UE complexity while maintaining network capacity improvements on targeted carriers.
Solution Approach 2:
The patent changes the parameter of CoMP support from a binary state (enabled/disabled) to a configurable state with multiple options (single CC, multiple CCs, or none). This parameter change allows flexible adaptation of CoMP operations based on network conditions and UE capabilities, optimizing the balance between network performance and device complexity.
2Productivity
If full CoMP and CA operations are implemented, then system performance is improved, but mobility handling becomes more difficult
Solution Approach 1:
The patent introduces dynamic configuration options that allow the network to adjust CoMP support levels based on mobility conditions. The configuration can be changed per UE and per component carrier, enabling the system to adapt to changing mobility scenarios. When mobility is detected, the network can reduce CoMP configuration complexity, improving mobility handling while maintaining performance when mobility is not a factor.
Data Source
AI summary
Certain aspects of the present disclosure provide methods and apparatus for joint support of coordinated multipoint (CoMP) operations and carrier aggregation (CA). One method generally includes receiving signaling indicating a configuration, from a set of possible configurations, that defines how the UE is to communicate with one or more base stations (BSs) using coordinated multipoint (CoMP) operations on one or more component carriers (CCs) and communicating in accordance with the configuration.