Flexible SCS Configuration for Millimeter Wave Coverage
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Solution Overview
Problem
High-frequency millimeter wave systems face challenges in supporting large bandwidths, which limits the coverage range of channels due to the existing configuration modes.
Innovation Solution
The proposed solution involves transmitting configuration information to terminal devices to indicate Subcarrier Spacing (SCS) configuration information for channels on the same Bandwidth Part (BWP), allowing different channels to have different SCS configurations or the same channel to have different configurations in various cases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a high frequency millimeter wave system supports a large bandwidth to achieve higher peak rate, then the data transmission capacity is improved, but the coverage range of channels is reduced
Solution Approach 1:
The patent applies parameter changes by introducing flexible SCS configuration that allows different subcarrier spacing values (e.g., 15kHz, 30kHz, 60kHz, 120kHz) to be selected based on channel conditions and service requirements. This enables the system to adjust the coverage range while maintaining large bandwidth support, resolving the contradiction between peak rate and coverage range by dynamically changing the SCS parameter
2Device complexity
If the existing configuration mode is used for SCS, then the system structure is simple, but the coverage range of channels is limited
Solution Approach 1:
The patent implements dynamics by transitioning from a static, fixed SCS configuration mode to a dynamic configuration mode where SCS can be flexibly adjusted per channel or per BWP. The network device can dynamically select and configure different SCS values based on real-time requirements, enabling coverage extension without excessive complexity through standardized configuration procedures
Solution Approach 2:
The patent changes the SCS parameter from a fixed value to a configurable parameter that can take multiple values. By introducing flexible SCS configuration indicators in signaling messages, the system enables parameter changes that extend coverage range while maintaining manageable complexity through protocol-defined configuration methods
Data Source
AI summary
A parameter processing method includes: transmitting configuration information to a terminal for indicating SCS configuration information of a channel on the same BWP, wherein different channels have different SCS configuration information or the same channel has different SCS configuration information in different cases.