Multi-Antenna Reference Signal Structure for 6G Spectral Efficiency
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Solution Overview
Problem
The development of 6G communication systems requires advanced technologies to support hyper-connectivity, including improved air-interface technologies, network energy saving, air-interface security, and network security, as well as the integration of sensing and communication capabilities, to meet the increased demands of connected devices and services.
Innovation Solution
A method and apparatus for transmitting and receiving time-domain modulated signals on multiple antenna ports, utilizing signaling related to Ambient Internet of Things (A-IoT), with features such as pseudo-random sequences and orthogonal matrix structures, to enhance reference signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If reference signals are transmitted on multiple antenna ports using traditional methods, then coverage and reliability are maintained, but spectral efficiency and network performance are limited
Solution Approach 1:
The patent applies dynamics by making the reference signal transmission adaptable and configurable. The network can dynamically select between different reference signal structures (first structure with sequence length L1, second structure with sequence length L2) based on channel conditions, device capabilities, and service requirements. This dynamic selection enables the system to optimize spectral efficiency while maintaining reliability through appropriate structure choice.
Solution Approach 2:
The patent changes key parameters of the reference signal transmission, specifically the sequence length (L1 or L2) and the structure of the reference signal. By modifying these parameters and providing detailed configuration information (including time-domain resource locations, frequency-domain resource locations, and sequence generation parameters), the system achieves improved spectral efficiency while ensuring reliable transmission through parameter optimization.
2Productivity
If advanced air-interface technologies are developed for 6G, then spectral efficiency and coverage are improved, but device complexity and implementation difficulty increase
Solution Approach 1:
The patent introduces detailed configuration information as an intermediary between the network and the terminal device. This configuration information acts as a guide, telling the terminal exactly how to generate and transmit reference signals on multiple antenna ports. By providing this intermediary information (including resource locations, sequence parameters, and port mappings), the system achieves advanced multi-antenna functionality without increasing terminal complexity, as the terminal simply follows the provided instructions.
3Reliability
If time-domain modulated signals are transmitted on multiple antenna ports, then network performance is improved, but signaling overhead and configuration complexity increase
Solution Approach 1:
The patent creates a universal configuration framework that handles multiple antenna port scenarios through a single set of configuration parameters. The same configuration mechanism supports different reference signal structures, different time-frequency resource allocations, and different sequence lengths. This multi-functional approach improves network performance across various scenarios while avoiding redundant signaling, as one configuration system serves multiple purposes.
Data Source
AI summary
A method performed by a user equipment (UE) in a wireless communication system is provided. The method includes obtaining first information of a first signal, wherein the first signal is modulated in a time-domain, and wherein the first information includes second information related to a length of the first signal and transmitting the first signal on at least two antenna ports respectively based on the first information, wherein the first signal is transmitted after a preamble or after a midamble.