Wireless Signal Timelines for High-Frequency 480 kHz SCS
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Solution Overview
Problem
Existing wireless communication systems face inefficiencies in transmitting and receiving control and data signals, particularly in high-frequency bands above 52.6 GHz, due to shortened symbol and slot lengths, increased phase noise, and complex implementation burdens.
Innovation Solution
Adopting new subcarrier spacing configurations and adjusted timelines for physical channels and signals, such as PDCCH, CSI-RS, and PUSCH, to accommodate high-frequency bands, including revised K1, K2, and N1 values, and integrating CSI computation with reduced delay requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If new subcarrier spacing configurations are adopted for high-frequency bands, then signal transmission efficiency is improved, but device complexity increases
Solution Approach 1:
The patent applies parameter changes by introducing new subcarrier spacing configurations (e.g., 480 kHz, 960 kHz) specifically for high-frequency bands above 52.6 GHz. These parameter changes enable the system to adapt to the unique characteristics of high-frequency transmission, improving signal efficiency while managing complexity through standardized configuration sets.
Solution Approach 2:
The patent segments the subcarrier spacing configurations into different categories based on frequency bands and service types. By dividing the configuration space into manageable segments (e.g., different SCS values for different bands), the system can optimize performance for each segment without overwhelming device complexity.
2Productivity
If adjusted timelines with revised K1, K2, and N1 values are implemented, then signal reception efficiency is improved, but processing requirements increase
Solution Approach 1:
The patent modifies timeline parameters (K1, K2, N1 values) to accommodate high-frequency band characteristics. These parameter adjustments optimize the timing relationships between downlink control channels, reference signals, and uplink data channels, improving reception efficiency while maintaining manageable processing requirements through standardized value sets.
3Speed
If CSI computation delay requirements are reduced, then communication speed is improved, but measurement precision may deteriorate
Solution Approach 1:
The patent introduces dynamic CSI computation delay requirements that adapt based on service type and channel conditions. By making the delay requirements dynamic rather than fixed, the system can reduce delays for delay-tolerant services while maintaining adequate computation time for precision-critical applications, thus balancing speed and precision.
Solution Approach 2:
The patent applies different CSI computation delay requirements to different services and channel conditions locally. Instead of a uniform delay requirement, the system tailors the delay tolerance to specific service needs (e.g., enhanced mobile broadband vs. ultra-reliable low-latency communication), allowing optimized performance for each local context.
Data Source
AI summary
The method and apparatus for transmitting and receiving a signal in a wireless communication system disclosed herein operate based on a timeline configuration different from that in the prior art. Specifically, a timeline related to physical downlink control channel (PDCCH) reception, physical downlink shared channel (PDSCH) reception, and hybrid automatic repeat request acknowledgement (HARQ-ACK) transmission, a timeline related to PDCCH reception and physical uplink shared channel (PUSCH) transmission, and a timeline related to PDCCH reception, channel state information reference signal (CSI-RS) reception, channel state information (CSI) reporting may be modified for a subcarrier spacing (SCS) configuration of 5 or 6.