Terminal RSSI and Channel Occupancy Measurement Configuration
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Solution Overview
Problem
In wireless communication systems operating in higher frequency bands, conventional measurement methods for received signal strength indicator (RSSI) and channel occupancy (CO) are inadequate due to larger sub-carrier spacings and multiple beams, leading to insufficient information for communication control.
Innovation Solution
A terminal equipped with a reception unit to receive configuration for measuring RSSI and CO, a control unit to perform measurements based on this configuration, and a transmission unit to report results to the base station, allowing for accurate measurement and reporting of RSSI and CO using larger sub-carrier spacings and multiple beams.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional measurement methods are used in higher frequency bands, then measurement simplicity is maintained, but measurement precision deteriorates due to larger sub-carrier spacings and multiple beams
Solution Approach 1:
The measurement configuration is segmented into multiple reporting units, each associated with specific beams and sub-carrier spacings. This allows the terminal to perform measurements in a structured, organized manner across different frequency band conditions, improving measurement precision without overwhelming system complexity
Solution Approach 2:
The measurement configuration is made dynamic by allowing the base station to flexibly set parameters such as the number of reporting units, beams per unit, and sub-carrier spacings based on actual frequency band conditions. This adaptability enables precise measurements in higher frequency bands while managing complexity through condition-based configuration
2Loss of information
If larger sub-carrier spacings and multiple beams are used in higher frequency bands, then communication control capability is improved, but information acquisition sufficiency deteriorates with conventional measurement methods
Solution Approach 1:
The measurement system is extended into additional dimensions by introducing multiple reporting units, each handling specific beam combinations and sub-carrier spacing configurations. This multi-dimensional approach ensures comprehensive information acquisition across all beams and frequency conditions in higher frequency bands
Solution Approach 2:
Measurement parameters are changed and optimized for higher frequency bands by configuring appropriate sub-carrier spacings, numbers of beams per reporting unit, and reporting periodicities. These parameter adjustments ensure sufficient measurement information is acquired while adapting to the specific characteristics of higher frequency operations
3Measurement precision
If measurements are performed for each reporting unit with multiple beams, then measurement accuracy is improved, but measurement time increases
Solution Approach 1:
Measurements across multiple reporting units are performed periodically with configurable intervals. The base station can set the number of slots between measurements and the periodicity of reporting, allowing the system to balance measurement precision with time efficiency by adjusting how frequently comprehensive multi-beam measurements are conducted
Solution Approach 2:
The terminal performs measurements on a selective basis rather than continuously on all beams. By configuring the number of beams per reporting unit and the reporting periodicity, the system performs sufficient measurements to maintain precision while avoiding excessive measurement overhead that would consume excessive time
Data Source
AI summary
A terminal includes a reception unit that receives a configuration for measuring a received signal strength indicator (RSSI) and a channel occupancy (CO) from a base station; a control unit that measures the RSSI and the CO for each of a plurality of reporting units based on the configuration; and a transmission unit that transmits a result of measurement for each of the plurality of reporting units to the base station.