MIMO Control Information Transmission via Frequency Band Segmentation
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Solution Overview
Problem
In MIMO wireless communication systems, the inefficient use of radio resources for transmitting MIMO information occurs when the number of information bits related to MIMO information is not fixed, leading to suboptimal utilization of resources.
Innovation Solution
The method involves dividing the frequency bandwidth into ranges where the same Precoding Matrix Index (PMI) is applied, allowing for the transmission of multiple antenna information by range, which can include multiple resource blocks, and using dedicated pilots or control channels to distribute this information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the number of information bits related to MIMO information is fixed, then blind-detecting technique can be used for decoding, but radio resources are inefficiently used when the actual number of bits is less than the maximum
Solution Approach 1:
The frequency bandwidth is divided into multiple ranges, and MIMO information is transmitted separately for each range. This segmentation allows the system to transmit only the necessary number of information bits for each frequency range rather than always transmitting the maximum number of bits, thereby improving radio resource efficiency while maintaining decoding reliability through structured transmission.
Solution Approach 2:
The patent makes the MIMO information transmission dynamic by adapting the number of information bits to the actual channel conditions and requirements of each frequency range. Instead of using a fixed maximum number of bits, the system dynamically adjusts the information bit count based on the specific needs of each frequency range, resolving the contradiction between reliability and resource efficiency.
2Loss of energy
If MIMO information is transmitted for each frequency range, then radio resource efficiency is improved, but the complexity of information management and transmission increases
Solution Approach 1:
By segmenting the frequency bandwidth into distinct ranges and transmitting MIMO information separately for each range, the patent creates a structured approach that simplifies information management. Each frequency range can be independently managed with its own set of information bits, making the overall complex task more tractable through systematic division.
Data Source
AI summary
A method of transmitting control information includes dividing frequency bandwidth into ranges to which the same PMI (precoding matrix index) is applied, obtaining multiple antenna information by the range to which the same PMI is applied and transmitting the multiple antenna information. Since multiple antenna information is transmitted by the unit of a range to which the same PMI is applied, radio resources allocated for transmitting the multiple antenna information may be reduced, thereby enhancing data transmission efficiency.