BWP Beam Mapping for Single Processing Chain Adaptation
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Solution Overview
Problem
Wireless communication systems face challenges in efficiently managing bandwidth parts (BWP) due to the need for multiple processing chains when a mobile communication device transitions between different beam directions, leading to increased costs, power consumption, and potential communication failures due to large frequency shifts.
Innovation Solution
A method where a base station transmits mapping information to a user equipment (UE) indicating the mapping between beam directions and BWPs, allowing the UE to adjust BWPs gradually as it moves, reducing the need for individual processing chains and minimizing communication failures by enabling more granular BWP switching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple processing chains are used to support different beam directions and BWPs, then the system can operate in different directions and bandwidths, but the cost and power consumption increase
Solution Approach 1:
The patent implements a single processing chain that can be dynamically reconfigured to serve multiple beam directions and bandwidth parts. The base station and UE share knowledge of beam-BWP associations, allowing the same hardware chain to be reused across different operational modes rather than requiring dedicated chains for each mode.
Solution Approach 2:
The system dynamically switches the processing chain's configuration based on current operational requirements. When the UE moves between beam directions or BWPs, the processing chain is reconfigured in real-time to match the new requirements, rather than maintaining static dedicated chains for all possible configurations.
2Adaptability or versatility
If multiple processing chains are used to support different beam directions, then the system can communicate in different directions, but the device complexity increases
Solution Approach 1:
A single processing chain is designed to perform multiple functions across different beam directions and BWPs. The chain's flexibility comes from software-defined configuration and shared beam-BWP association knowledge between base station and UE, reducing hardware complexity while maintaining multi-directional capability.
Solution Approach 2:
The patent merges the functionality of multiple dedicated processing chains into a single shared chain. By combining beam management and BWP switching control in one chain with dynamic reconfiguration capability, the system achieves multi-directional communication without proportionally increasing hardware complexity.
3Adaptability or versatility
If the UE transitions between BWPs that are far apart in frequency, then the UE can access different frequency ranges, but communication errors or failures occur
Solution Approach 1:
The base station and UE establish beam-BWP association knowledge in advance. This preliminary configuration allows the UE to prepare for upcoming BWP transitions by knowing which beam directions correspond to which BWPs, enabling smoother switches and reducing communication errors during frequency transitions.
Solution Approach 2:
The system uses feedback mechanisms where the base station monitors UE performance during BWP transitions and adjusts beam-BWP associations accordingly. This feedback loop allows the system to learn from actual transition performance and optimize future switching operations to maintain reliability.
Data Source
AI summary
This disclosure provides systems, methods, and apparatuses, including computer programs encoded on computer storage media, for wireless communication. In one aspect of the disclosure, a method for wireless communication performed by a user equipment (UE) includes receiving, from a base station, mapping information indicating, for each bandwidth part (BWP) of multiple BWPs, a mapping between a respective beam direction of multiple beam directions and the BWP. The method further includes receiving an allocation of a first BWP. The method also includes communicating, via the first BWP, one or more first messages using a first beam having a first beam direction, and receiving, from the base station, a change indicator associated with a second BWP or a second beam direction. The method includes communicating, via the second BWP, one or more second messages using a second beam having a second beam direction. Other aspects and features are also claimed and described.