CoMP Resource Allocation via TP Cluster Determination
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Solution Overview
Problem
Current communication networks, particularly those based on LTE, face inefficiencies in supporting cooperative transmission and joint processing functions due to undefined operation procedures and frame structures, which hinder effective transmission of control and feedback channels in ultra-dense networks.
Innovation Solution
An operation method for communication nodes that allocates resources for pilot signals, determines TP clusters based on channel states, and performs transmission scheduling using maximum ratio transmission (MRT) and zero-forcing (ZF) precoding to maximize received power and minimize interference, ensuring efficient CoMP operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If cooperative transmission (joint transmission) is supported among multiple base stations, then communication capacity and coverage are improved, but the complexity of resource allocation and frame structure design increases
Solution Approach 1:
The patent segments the cooperative transmission system into distinct functional components: pilot signal transmission, channel quality measurement, TP cluster determination, and coordinated data transmission. This segmentation allows each component to be optimized independently while maintaining overall system efficiency, thereby managing complexity while preserving communication capacity improvements.
Solution Approach 2:
The patent implements dynamic resource allocation where the TP cluster composition and resource allocation are adaptively determined based on real-time channel quality measurements. This dynamic approach allows the system to optimize communication capacity under varying channel conditions while using standardized frame structures, thus improving productivity without proportionally increasing complexity.
2Adaptability or versatility
If standardized LTE frame structures are used for cooperative transmission, then device compatibility is maintained, but efficient support for control channel and feedback channel transmission is compromised
Solution Approach 1:
The patent applies local quality by maintaining standardized LTE frame structures for general compatibility while introducing specialized resource allocation patterns specifically optimized for control channels and feedback channels within the cooperative transmission framework. This allows different parts of the frame structure to serve different functions optimally, achieving both compatibility and efficiency.
Solution Approach 2:
The patent creates a multi-functional resource allocation scheme that can handle both standard data transmission and specialized control/feedback channel transmission within the same LTE frame structure. The TP cluster mechanism provides universal support for various transmission scenarios while maintaining device compatibility through standardized interfaces.
3Reliability
If dynamic resource allocation is used for pilot signals, then channel adaptation is improved, but signaling overhead and processing complexity increase
Solution Approach 1:
The patent changes the parameter of resource allocation from static to dynamic based on channel conditions, allowing the system to adapt to varying channel quality. By determining TP clusters based on channel quality measurements and dynamically allocating pilot resources accordingly, the system achieves reliable channel adaptation while managing signaling overhead through efficient measurement and reporting mechanisms.
Data Source
AI summary
An operation method of a communication node supporting a coordinated multi-point transmission and reception (CoMP) of a terminal based on a plurality of transmission points (TPs) included in a communication network may comprise allocating a resource for transmitting a pilot signal of the terminal; receiving quality measurement information of the pilot signal of the terminal from the plurality of TPs; determining a TP cluster supporting the CoMP of the terminal based on channel states among the plurality of TPs; transmitting information on the allocated resource and information on the TP cluster to the terminal and the TP cluster; and supporting the CoMP of the terminal based on the allocated resource and the TP cluster.