Wireless Communication BWP Switching for Efficient Resource Use
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Solution Overview
Problem
The scarcity of communication transmission resources necessitates improving resource utilization rates in wireless communication systems.
Innovation Solution
A method and apparatus for wireless communication that involves a terminal device receiving information to switch between activated and secondary bandwidth parts (BWPs) for efficient resource utilization, including adaptive BWP switching and multiplexing special signals with existing channels to optimize resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple bandwidth parts are configured for terminal device, then resource utilization rate is improved, but device complexity increases
Solution Approach 1:
The patent divides the bandwidth into multiple bandwidth parts (BWPs), where each BWP is a segmented portion of the total bandwidth. The terminal device is configured with a first BWP for current communication and a second BWP for future switching. This segmentation allows the system to improve resource utilization by enabling flexible switching between BWPs while managing device complexity through structured configuration management.
2Productivity
If BWP switching is implemented, then spectrum resource utilization is enhanced, but communication interruption may occur
Solution Approach 1:
The patent applies preliminary action by pre-configuring the second BWP information before the switching event occurs. The network device sends the second BWP configuration to the terminal device in advance, so that when switching is needed, the terminal device can immediately activate the pre-configured second BWP without interruption. This eliminates communication gaps that would otherwise occur during BWP transitions.
3Productivity
If special signals are multiplexed with existing channels, then resource allocation is optimized, but signal detection difficulty increases
Solution Approach 1:
The patent merges special signals with existing physical channels by multiplexing them in the time-frequency domain. Specifically, wake-up signals, paging signals, and random access signals are multiplexed with downlink or uplink physical channels. This merging optimizes resource allocation by utilizing otherwise idle resources while maintaining signal detectability through proper resource element mapping and signal design.
Data Source
AI summary
A method for wireless communication includes: a terminal device receives first information on a first bandwidth part (BWP), the first information being used for indicating a second BWP, and the first BWP being a currently activated BWP for the terminal device; and the terminal device performs communication on the second BWP.