Blind Detection of Control Information Using Overlapping Antenna Port Resources
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in transmitting and receiving control information, particularly in next-generation radio access techniques, which require enhanced communication capacity, latency reduction, and reliability for diverse services like eMBB, mMTC, and URLLC.
Innovation Solution
The method involves a user equipment receiving a reference signal through multiple antenna ports and performing blind detection using both single and multiple antenna port transmission schemes, with overlapping resource regions, allowing the base station to rate-match control information and improve scheduling flexibility and resource usage efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple antenna ports are used for reference signal transmission, then reliability of control information reception is improved, but device complexity increases
Solution Approach 1:
The patent implements dynamic switching between single-antenna and multi-antenna transmission schemes based on channel conditions and service requirements. The base station can adaptively select whether to use multiple antenna ports for reference signal transmission, allowing the system to achieve high reliability when needed while reducing complexity when conditions permit
Solution Approach 2:
The patent changes the parameter of antenna port configuration from fixed to variable. By allowing the number of antenna ports to be dynamically adjusted based on channel quality indicators and service type (eMBB, mMTC, URLLC), the system optimizes the balance between reliability and complexity
2Productivity
If overlapping resource regions are used for different transmission schemes, then resource usage efficiency is improved, but difficulty of detecting and measuring increases
Solution Approach 1:
The patent segments the resource region into different types (overlapping and non-overlapping) with distinct transmission schemes assigned to each. This segmentation allows the system to handle different detection scenarios separately, managing the complexity of blind detection while maximizing resource utilization in overlapping regions
Solution Approach 2:
The patent performs preliminary configuration of transmission schemes and resource allocations before actual data transmission. By pre-defining which schemes use overlapping resources and how blind detection should be performed, the system reduces the real-time detection burden while maintaining efficient resource usage
3Adaptability or versatility
If blind detection is performed for both single and multiple antenna schemes, then adaptability is improved, but loss of time increases
Solution Approach 1:
The patent implements partial blind detection by performing detection for only the necessary transmission schemes based on pre-configuration and channel conditions. Instead of universally detecting both single and multi-antenna schemes, the system performs detection only when required, reducing time loss while maintaining adaptability
Solution Approach 2:
The patent uses feedback mechanisms where the base station provides information about the transmitted scheme configuration to the user equipment. This feedback allows the UE to adjust its blind detection strategy, performing comprehensive detection when adaptability is critical and reduced detection when time is constrained
Data Source
AI summary
A method for receiving control information by a terminal in a wireless communication system according to one embodiment of the present disclosure may comprise the steps of: receiving a reference signal through at least one of multiple antenna ports of a base station; and blind-detecting control information of the terminal on the basis of at least one of a first transmission scheme using a single antenna port for the reference signal and a second transmission scheme using the multiple antenna ports for the reference signal, wherein a resource area for the first transmission scheme may overlap at least partially with a resource area for the second transmission scheme and, when the terminal performs blind-detection on the basis of the first transmission scheme, the terminal may perform the blind-detection on an assumption that the reference signal is transmitted according to the second transmission scheme in the overlapping resource area.