CoMP Signaling Method for Wireless Base Station Coordination
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently coordinating multi-point transmission and reception between base stations, particularly in supporting high-speed data services and managing increased traffic, resource allocation, and low latency, which are essential for next-generation mobile communication systems.
Innovation Solution
A signaling method for Coordinated Multi-Point Transmission and Reception (CoMP) operation between base stations, involving the transmission of CoMP information including Hypothesis Set, Benefit Metric, starting System Frame Number, and starting Subframe Number, to facilitate centralized coordination and resource allocation, enabling smooth CoMP operation and improved network performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If base stations perform coordinated multi-point transmission and reception, then network performance and data service speed are improved, but signaling complexity and coordination overhead between base stations increase
Solution Approach 1:
The CoMP information is segmented into multiple components including Hypothesis Set information, Benefit Metric information, starting SFN information, and starting Subframe Number information. This segmentation allows each component to be processed and transmitted independently, reducing the overall signaling complexity while maintaining the full functionality of CoMP operation
Solution Approach 2:
The patent transmits CoMP information in advance before actual CoMP operation occurs. The Hypothesis Set information and Benefit Metric information are pre-configured and signaled to participating base stations beforehand, allowing them to prepare for coordinated transmission without real-time coordination overhead during data transmission
2Productivity
If centralized coordination architecture is implemented for CoMP operation, then resource allocation efficiency is improved, but information transmission overhead between center control node and member base stations increases
Solution Approach 1:
The patent extracts only the essential CoMP information components needed for centralized coordination from the complete set of possible information. By selecting and transmitting only Hypothesis Set information, Benefit Metric information, and timing information (starting SFN and Subframe Number), the system reduces information transmission overhead while maintaining resource allocation efficiency
Solution Approach 2:
The patent implements partial action by transmitting a subset of possible CoMP information components. Rather than transmitting all possible coordination parameters, only the critical components necessary for resource allocation and CoMP operation are signaled, reducing overhead while achieving the necessary coordination
Data Source
AI summary
Disclosed are a signal method for a CoMP operation in a wireless communication system and a device therefor. Particularly, the signaling method for a CoMP operation between base stations in a wireless communication system comprises a step of transmitting, by a first base station, first CoMP information to a second base station, wherein: the first CoMP information includes CoMP hypothesis set information which is a collection of CoMP hypothesis information for one or more cells, benefit metric information associated with the CoMP hypothesis set, start system frame number (SFN) information, and start subframe number information; the CoMP hypothesis is hypothetical physical resource block (PRB) specific resource allocation information for one cell; the start SFN information indicates a start wireless frame number of the first CoMP information; and the start subframe number information can indicate a start subframe number of the first CoMP information.