Extended Scheduling Offset for High Frequency Bands
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Solution Overview
Problem
The current definition of the offset value for scheduling downlink and uplink data in NR is too narrow to support large subcarrier spacings in high frequency bands like 52.6 GHz to 71 GHz, necessitating an extension of this range.
Innovation Solution
A terminal is equipped with a reception unit to receive an extended scheduling offset value configuration from a base station and a control unit to apply this extended offset for scheduling downlink and uplink data, allowing for flexible scheduling across high frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the conventional offset value definition is used for scheduling downlink and uplink data, then the scheduling mechanism works for traditional frequency bands, but the range is too narrow to support large subcarrier spacings in high frequency bands (52.6 GHz to 71 GHz)
Solution Approach 1:
The patent extends the definition of the offset value parameter to a broader range, specifically allowing offset values from 0 to 63 in slot units for high frequency bands. This parameter change enables the scheduling mechanism to accommodate large subcarrier spacings (120 kHz, 240 kHz, 480 kHz, 960 kHz) while maintaining compatibility with conventional bands, thus resolving the contradiction between frequency band adaptability and scheduling reliability.
2Productivity
If the offset value range is extended to support high frequency bands, then scheduling capability is improved for large subcarrier spacings, but the complexity of the scheduling mechanism increases
Solution Approach 1:
The patent introduces dynamic configuration of offset values through higher layer signaling (RRC signaling) that allows the base station to flexibly configure the offset value range based on the specific frequency band and subcarrier spacing being used. This dynamic approach enables the system to adapt the scheduling mechanism complexity according to operational requirements, improving scheduling efficiency for high frequency bands while managing overall system complexity through conditional application.
Data Source
AI summary
A terminal includes: a reception unit configured to receive a signal indicating a configuration of a scheduling offset value that is extended for a communication using a frequency band that is equal to or greater than a reference value from a base station; and a control unit configured to expect that downlink data to be transmitted from the base station or uplink data to be transmitted to the base station is to be scheduled by applying the scheduling offset value that is extended for the frequency band.