BWP Activation Across Discontinuous Sub-Frequency Bands
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Solution Overview
Problem
Existing communication technologies face limitations in utilizing discontinuous frequency bands, leading to restricted communication capabilities and inefficient switching between frequency bands, particularly in 5G systems where individual frequency bands with smaller bandwidths are difficult to meet service requirements.
Innovation Solution
The proposed method and apparatus enable activation of bandwidth parts (BWPs) and sub-frequency bands within aggregated frequency bands, allowing for discontinuous sub-frequency bands to be utilized efficiently by sending activation indication information, thereby improving frequency domain resource activation accuracy and reducing switching delays and resource consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous frequency bands are used for communication, then communication stability is improved, but frequency band utilization flexibility deteriorates
Solution Approach 1:
The patent segments the frequency band into multiple sub-frequency bands (e.g., first sub-frequency band, second sub-frequency band, third sub-frequency band) that can be independently activated. This allows the system to use discontinuous frequency bands while maintaining communication stability through selective activation of specific segments, resolving the contradiction between continuous band requirements and flexible utilization.
Solution Approach 2:
The patent introduces dynamic activation mechanisms where the base station can activate different combinations of sub-frequency bands based on real-time communication needs. The activation indication information enables dynamic switching between continuous and discontinuous frequency band configurations, allowing the system to adapt to varying service requirements while maintaining stability.
2Adaptability or versatility
If frequency band switching is performed frequently, then service adaptability is improved, but switching delay increases
Solution Approach 1:
The patent configures multiple BWPs and sub-frequency bands in advance with pre-defined activation states. The terminal maintains readiness to switch between pre-configured frequency band configurations, reducing switching delay when service requirements change. The base station can activate different sub-frequency band combinations without requiring full reconfiguration.
Solution Approach 2:
By segmenting the frequency band into activatable sub-frequency bands, the system can perform partial switching rather than complete band switching. This allows faster adaptation to service changes by activating only the necessary segments, reducing the overall switching delay while maintaining service adaptability.
3Loss of energy
If bandwidth parts are deactivated during switching, then resource optimization is improved, but switching complexity increases
Solution Approach 1:
The patent enables dynamic activation of sub-frequency bands within BWPs without requiring complete BWP deactivation. The base station can activate different sub-frequency band combinations based on real-time needs, optimizing resource utilization while simplifying the switching process to a matter of sub-band activation rather than full BWP reconfiguration.
Solution Approach 2:
The segmentation of frequency bands into independently controllable sub-frequency bands allows for granular resource management. Instead of deactivating entire BWPs during switching, the system can optimize by activating only the necessary sub-frequency segments, reducing switching complexity while achieving resource optimization.
4Measurement precision
If discontinuous sub-frequency bands are activated, then frequency domain resource accuracy is improved, but system complexity increases
Solution Approach 1:
The patent segments the frequency band into sub-frequency bands that can be independently activated through activation indication information. This segmentation enables precise control over frequency domain resources, allowing the system to activate only the necessary sub-frequency bands for a given service, thereby improving activation accuracy while managing complexity through standardized segmentation.
Solution Approach 2:
The base station provides activation indication information to the terminal, creating a feedback mechanism that ensures accurate activation of the correct sub-frequency bands. This feedback loop allows the system to achieve high frequency domain resource activation accuracy by confirming the activated configuration with the terminal, while the standardized feedback protocol manages system complexity.
Data Source
AI summary
The present disclosure relates to an activation indication method, including: sending activation indication information to a terminal. The terminal is configured with at least one bandwidth part BWP operating in an aggregated frequency band, the aggregated frequency band includes a new frequency-band identifier and a plurality of sub-frequency bands, at least two adjacent sub-frequency bands among the plurality of sub-frequency bands are discontinuous, and a bandwidth corresponding to the BWP comprises at least one sub-frequency band in the aggregated frequency band. The activation indication information is used for activating one BWP among the at least one configured BWP and at least one sub-frequency band among the sub-frequency bands corresponding to the activated BWP.