Bandwidth Part Configuration for 5G Network Devices
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Solution Overview
Problem
The 5G mobile communication system requires flexible bandwidth support to accommodate various scenarios and service requirements, but lacks an effective air-interface configuration scheme for Bandwidth Part (BWP) management, particularly in configuring uplink and downlink BWP pairs for User Equipment (UE).
Innovation Solution
A method for configuring BWP parameters in a network device that involves receiving UE capability information, configuring air interface parameters for at least one BWP, and transmitting these parameters to the UE through broadcast messages or preset signaling, including information about the correspondence between uplink and downlink BWPs, such as feedback relationships, scheduling, Timing Advance, and path loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If carrier aggregation is used to support wider bandwidth, then bandwidth capacity is improved, but system complexity increases and cannot accommodate flexible bandwidth requirements
Solution Approach 1:
The patent divides a large bandwidth carrier into multiple smaller Bandwidth Parts (BWPs), each with its own configuration parameters. This segmentation allows the system to support wide bandwidth capacity while managing complexity by treating each BWP as an independent configurable unit with simplified parameters compared to full carrier aggregation.
2Adaptability or versatility
If multiple BWPs are configured for UE, then adaptability to different service requirements is improved, but configuration complexity increases
Solution Approach 1:
The patent creates a universal BWP configuration framework where a standardized set of air interface parameters can be applied across multiple BWPs and different service types. This multi-functional approach allows the same configuration mechanism to serve diverse service requirements (eMBB, URLLC, mMTC) without proportionally increasing configuration complexity.
Solution Approach 2:
The patent enables flexible adaptation to different service requirements by allowing dynamic changes of air interface parameters within BWP configurations. Through parameter adjustments in the BWP setup, the system can optimize performance for various service types without requiring completely different configuration schemes.
3Productivity
If air interface parameters are configured for multiple BWPs, then communication efficiency is improved, but signaling overhead increases
Solution Approach 1:
The patent extracts and identifies the essential air interface parameters that are common across multiple BWPs, configuring only these key parameters rather than redundantly specifying all parameters for each BWP. This extraction approach maintains communication efficiency while reducing the total signaling overhead by eliminating duplicate information.
4Adaptability or versatility
If BWP configuration scheme is established, then flexibility in bandwidth management is improved, but system complexity increases
Solution Approach 1:
The patent implements a dynamic BWP configuration scheme where air interface parameters can be adjusted and reconfigured based on current service requirements and channel conditions. This dynamic approach provides flexibility in bandwidth management while controlling system complexity through standardized reconfiguration procedures rather than requiring complex static designs.
Data Source
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AI summary
A BWP configuration method, a network device and a UE are provided. The BWP configuration method includes: receiving UE capability information carrying BWP capability information reported by a UE; and configuring an air interface parameter set of at least one BWP for the UE in accordance with the UE capability information. The air interface parameter set includes at least one air interface parameter of the BWP.