Wireless Signal Timeline Configuration for High-Frequency 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 values for K0, K1, and K2 offsets, and optimizing CSI computation delays.
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 adjustments include modified K0, K1, and K2 offsets, and optimized CSI computation delays, which enable efficient signal transmission in high-frequency bands while managing implementation complexity through standardized configurations.
2Reliability
If processing times are aligned with high-frequency band characteristics, then performance is improved, but timeline complexity increases
Solution Approach 1:
The patent implements dynamic timeline adjustments by aligning processing times (K0, K1, K2 offsets) with the specific characteristics of high-frequency bands. The processing timelines are made adaptive to frequency band requirements, allowing the system to optimize performance for different operating conditions while maintaining manageable complexity through standardized dynamic configurations.
3Speed
If CSI computation delay requirements are optimized, then signal transmission speed is improved, but processing accuracy may deteriorate
Solution Approach 1:
The patent optimizes CSI computation delay requirements by introducing differentiated delay parameters (CSI computation delay requirement 1 and 2) based on specific operating conditions. This allows the system to achieve faster signal transmission when conditions permit, while maintaining sufficient processing accuracy by selecting appropriate delay requirements based on whether the PUSCH includes transport blocks or HARQ-ACK, and on the SCS configuration being used.
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.