CoMP Control Information Size Standardization in Carrier Aggregation
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in transmitting and receiving control information, particularly in coordinated multi-point (CoMP) sets within carrier aggregation (CA) based systems, which affects the overall performance of downlink data transmission.
Innovation Solution
A method is introduced to efficiently transmit and receive control information by determining the same size for control information candidates across CoMP set cells, using higher layer signaling to adjust and pad bits as necessary, and utilizing radio resource control (RRC) signaling to manage control channel candidates, ensuring efficient data transmission across the entire bandwidth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If control information sizes are determined differently for each cell in a CoMP set, then the control information can be optimized for each specific cell's requirements, but the device complexity and processing overhead increase significantly
Solution Approach 1:
The patent applies homogeneity by determining that all control information candidates for each cell in the CoMP set have the same size, based on information about control information size received through higher layer signaling. This standardization across cells reduces processing complexity while maintaining adequate control information transmission, directly resolving the contradiction between adaptability and device complexity.
2Reliability
If the control information size is increased to accommodate all cells in the CoMP set, then all cells can be properly controlled, but the bandwidth utilization efficiency decreases
Solution Approach 1:
The patent applies local quality by allowing different control information size configurations for different cells within the CoMP set through higher layer signaling. Each cell can have its control information size appropriately sized for its specific needs, rather than using a uniform size for all cells. This enables proper control coverage for each cell while optimizing bandwidth utilization by avoiding unnecessary overhead from uniformly large control information sizes.
Data Source
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AI summary
The present invention relates to a wireless communication system. In particular, the present invention relates to a method and device for receiving control information regarding a coordinated multi-point (CoMP) set including a first cell and a second cell from a serving/transmitting point in a carrier aggregation (CA) based wireless communication system. The present invention includes: receiving information regarding the size of control information through higher-layer signaling; and monitoring a plurality of control channel candidates for each cell of the CoMP set through the first cell in the CoMP set and detecting the control information, wherein the size of information of the control information candidate for each cell is equally determined based on information regarding the size of control information.