Cross-Bandwidth Part Scheduling for Flexible Service Multiplexing
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Solution Overview
Problem
Current communication systems face challenges in supporting multiple service types with different performance requirements, such as eMBB, URLLC, and mMTC, as they often rely on a single configuration parameter for all carriers or bandwidth parts, limiting flexibility in data transmission.
Innovation Solution
A data transmission method that allows terminals to receive scheduling signaling from a base station, determining whether a target bandwidth part is to-be-scheduled based on frequency-domain resource indication and configuration information, and switching to a different bandwidth part for data transmission using associated configuration parameters, enabling cross-bandwidth part scheduling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single configuration parameter is used for all carriers or bandwidth parts, then device complexity is reduced, but adaptability to different service types deteriorates
Solution Approach 1:
The patent segments the bandwidth spectrum into multiple bandwidth parts, each with independent configuration parameters. This allows different service types (eMBB, URLLC, mMTC) to be assigned to different bandwidth parts with optimized parameters, resolving the contradiction between simplified configuration and service adaptability.
Solution Approach 2:
The patent introduces dynamic scheduling mechanisms that allow the terminal to switch between different bandwidth parts based on service requirements. The network can dynamically allocate resources across bandwidth parts with different numerologies, enabling flexible adaptation to varying service demands without increasing overall system complexity.
2Adaptability or versatility
If multiple bandwidth parts with different numerologies are configured, then service adaptability is improved, but device complexity increases
Solution Approach 1:
The patent designs a universal scheduling framework where a single terminal can handle multiple bandwidth parts with different numerologies using a unified resource management approach. The terminal maintains capability information for multiple numerologies and can be scheduled on any configured bandwidth part, achieving multi-functionality without proportionally increasing complexity.
Solution Approach 2:
The terminal autonomously determines which bandwidth part to use based on received scheduling indications and its own capability information. The self-service mechanism allows the terminal to independently manage multiple bandwidth parts by matching service requirements with appropriate numerology configurations, reducing the burden on network control while maintaining adaptability.
3Productivity
If cross-bandwidth part scheduling is implemented, then productivity is improved, but difficulty of detecting and measuring increases
Solution Approach 1:
The patent introduces an intermediary scheduling mechanism where the network sends explicit scheduling indications to the terminal, specifying which bandwidth part should be used for data transmission. This intermediary approach simplifies the detection process by providing clear mapping relationships between scheduling commands and frequency-domain resources, reducing measurement difficulty while enabling cross-bandwidth part scheduling for improved productivity.
Data Source
AI summary
A data transmission method includes: receiving scheduling signaling sent by a base station on a target bandwidth part, wherein the scheduling signaling carries frequency-domain resource indication information and parameter indication information, and the target bandwidth part is a bandwidth part capable of transmitting the scheduling signaling in a plurality of bandwidth parts; upon determining, based on the frequency-domain resource indication information and pre-stored configuration information, that the target bandwidth part is not a to-be-scheduled bandwidth part, determining the to-be-scheduled bandwidth part from the plurality of bandwidth parts based on the frequency-domain resource indication information and the configuration information; and transmitting data through the to-be-scheduled bandwidth part according to a configuration parameter associated with the parameter indication information.