Unified Frame Structure Using Extended Golay Codes
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Solution Overview
Problem
The interoperability between single carrier (SC) and Orthogonal Frequency Division Multiplexing (OFDM) devices and networks is limited due to their distinct frame structures, which hinders accurate channel estimation and communication efficiency in millimeter wave communications.
Innovation Solution
The generation and use of extended Golay codes, comprising a first Golay code of length 2m and a second Golay code of length 2n, to create a unified frame structure for both SC and OFDM transmission modes, enabling accurate channel estimation through a channel estimation field constructed from Golay complementary codes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate frame structures are used for SC and OFDM transmission modes, then each mode can be optimized for its specific requirements, but interoperability between SC and OFDM devices and networks is limited
Solution Approach 1:
The patent applies universality by designing a common mode (CM) transmission that can be used by both SC and OFDM devices. The CM includes a unified frame structure with synchronization fields, channel estimation fields, and data fields that both transmission modes can utilize, enabling interoperability while maintaining mode-specific optimizations through separate fields when needed
2Measurement precision
If mode-specific frame structures are maintained for SC and OFDM, then each mode's transmission characteristics are preserved, but accurate channel estimation becomes difficult across different modes
Solution Approach 1:
The patent uses channel estimation fields as intermediaries that are included in the common mode transmission. These fields contain known sequences that both SC and OFDM receivers can process to estimate channel characteristics, enabling accurate channel estimation across different transmission modes while maintaining mode-specific processing capabilities
Data Source
AI summary
Certain aspects of the present disclosure relate to a method for generating a frame structure suitable for use in both single carrier (SC) and Orthogonal Frequency Division Multiplexing (OFDM) transmission modes, while ensuring accurate channel estimation at a receiver.