Subband Configuration via Common Control Channel
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Solution Overview
Problem
The 5G mobile communication system faces challenges in instructing user equipment to perform flexible configuration of subbands, which is essential for meeting diverse application scenarios and deployment requirements, as existing methods fail to efficiently allocate and utilize subbands within the system bandwidth.
Innovation Solution
A control method is introduced where configuration information of subbands is indicated to user equipment via a common control channel of a basic subband, allowing the equipment to configure and use subbands based on this information, including carrier, signal waveform, and user-specified control channel configurations, enabling flexible subband utilization and data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the whole continuous bandwidth resources are divided into different subbands to meet diverse application scenarios, then the adaptability of the system is improved, but the device complexity increases due to the need for flexible configuration management
Solution Approach 1:
The patent divides the continuous bandwidth resources into multiple subbands, with each subband having independent configuration parameters. This segmentation allows different subbands to be configured independently for different application scenarios, improving adaptability while managing complexity through modular configuration units
Solution Approach 2:
The patent introduces a new dimension of configuration by adding subband-specific parameters (such as subband bandwidth, subcarrier spacing, cyclic prefix length) to the traditional system-wide configuration. This multi-dimensional configuration approach enables flexible adaptation to diverse scenarios without fundamentally changing the overall system structure
2Ease of operation
If configuration information is transmitted to user equipment, then the ease of operation is improved, but the loss of time increases due to the overhead of configuration signaling
Solution Approach 1:
The patent pre-configures subband parameters and prepares configuration information in advance at the network side. Configuration information is readied before being transmitted to user equipment, reducing the time required for actual configuration deployment and minimizing signaling overhead impact on system latency
Solution Approach 2:
The patent extracts only the essential and necessary configuration information for subband operation, transmitting minimal required parameters to user equipment. By selecting and transmitting only critical configuration elements, the signaling overhead is reduced while still enabling proper subband operation
Data Source
AI summary
A user equipment, a control method thereof and a network side device are provided in the present disclosure. The control method includes: indicating configuration information of a subband to be configured to a user equipment via a common control channel of a basic subband, such that the user equipment can use the subband to be configured according to the configuration information, wherein the basic subband is a subband to which the user equipment has access, and the subband to be configured comprises any subband within a bandwidth resource. The above method can support the flexibility of subband configuration.