Beam Training Sequence Design for Multi-Channel Bonding
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Solution Overview
Problem
Current beam training sequence design methods are limited and cannot effectively cater to various communication channel scenarios, particularly in terms of antenna quantity, delay spread, and channel bonding configurations, leading to inadequate performance in multi-channel bonding scenarios.
Innovation Solution
A method and apparatus for designing beam training sequences that generate orthogonal Golay sequences with a cyclic prefix, allowing for flexible application across different channel scenarios by adjusting sequence length and structure based on the number of antennas and maximum delay, enabling effective channel estimation in diverse configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing beam training sequence design methods are used, then the method is simple and easy to implement, but the method is limited to very specific communication channel scenarios and cannot satisfy various different communication channel training requirements
Solution Approach 1:
The patent designs a universal beam training sequence structure that can be applied to multiple communication channel scenarios including different maximum delay spreads, different quantities of bound channels, and different quantities of antennas. The sequence structure with cyclic prefix and Golay complementary sequences serves multiple functions across various channel conditions, making the design universally applicable rather than scenario-specific.
Solution Approach 2:
The patent adjusts sequence parameters such as the length of cyclic prefix, the structure of Golay complementary sequences, and the overall sequence length based on different communication channel scenarios. By changing these parameters, the same basic sequence structure can adapt to different maximum delay spreads, channel bonding configurations, and antenna quantities, resolving the contradiction between versatility and complexity.
2Ease of manufacture
If beam training sequences are designed for specific scenarios, then the sequence design is simple and focused, but the sequence cannot be applied to various different communication channel configurations
Solution Approach 1:
The beam training sequence is segmented into distinct components including cyclic prefix and Golay complementary sequences. This segmentation allows each component to be independently designed and optimized for specific requirements while maintaining overall structure simplicity. The modular approach enables easy adjustment of individual segments to match different channel scenarios without redesigning the entire sequence.
3Measurement precision
If the beam training sequence length is increased to cover larger delay spread, then the channel estimation accuracy improves, but the training time and overhead increase
Solution Approach 1:
The cyclic prefix is added as a preliminary action before the actual beam training sequence transmission. This preliminary structure prepares the sequence to handle multipath effects and delay spread without requiring excessive sequence length. The pre-configured cyclic prefix protects against inter-symbol interference, allowing accurate channel estimation with shorter effective sequence lengths, thus reducing training time.
Data Source
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AI summary
Embodiments of the present invention disclose a beam training sequence design method and apparatus. The method includes: generating, by a transmit end, NT beam training sequences, where each beam training sequence includes a Golay sequence with a length of 2 × N × L and a cyclic prefix, the NT Golay sequences are orthogonal, NT is a quantity of antennas at the transmit end, L is a signal length corresponding to a maximum delay Tm of a channel, NT is a positive integer, N is a positive integer, L is a positive integer, and a length of the cyclic prefix is L; and sending, by the transmit end, the NT beam training sequences to a receive end by using the NT transmit antennas at the transmit end, where each transmit antenna sends a corresponding beam training sequence. Therefore, the beam training sequence design method in the embodiments of the present invention is no longer restricted by a quantity of antennas, a delay spread value of a channel, and a scenario such as multi-channel bonding, and the beam training sequences can be applicable to different channel scenario configurations.