Wireless Subband Configuration for Overlapping Uplink and Downlink
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Solution Overview
Problem
The existing 5G communication systems face challenges in efficiently managing resource allocation for uplink and downlink transmissions due to the shortage of resources and high-speed service demands, particularly in the context of IoT networks.
Innovation Solution
A method for configuring subbands in a wireless communication system, where uplink and downlink transmissions are managed through separate frequency and time domain intervals, with overlapping resources handled via higher-layer signaling and downlink control information (DCI) to optimize resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate frequency and time domain intervals are used for uplink and downlink transmissions, then resource allocation flexibility is improved, but resource utilization efficiency deteriorates due to resource shortages
Solution Approach 1:
The patent segments the frequency domain into multiple subbands and the time domain into multiple intervals, allowing independent configuration of uplink and downlink resources. This segmentation enables flexible allocation while improving utilization by allowing overlapping resources in different subbands or intervals to be shared between uplink and downlink transmissions
Solution Approach 2:
The patent implements dynamic resource allocation where the network device can flexibly configure the number, position, and size of subbands and time domain intervals based on traffic conditions. This dynamic adjustment allows the system to adapt to varying resource demands and improve overall resource utilization efficiency
2Adaptability or versatility
If overlapping resources are handled via higher-layer signaling and DCI, then resource allocation flexibility is improved, but system complexity increases
Solution Approach 1:
The patent merges the control mechanisms by handling overlapping resource allocation through a unified approach combining higher-layer signaling for semi-static configuration and DCI for dynamic adjustments. This integrated control framework manages complexity while maintaining flexibility in resource allocation
3Productivity
If flexible subband configuration is implemented, then resource utilization is enhanced, but processing complexity increases
Solution Approach 1:
The patent applies partial action by allowing flexible subband configuration only where needed - specifically for handling overlapping uplink and downlink resources. Not all subbands require flexible configuration, and the system can revert to simpler allocation schemes when flexibility is not required, thereby managing processing complexity while enhancing resource utilization where necessary
Data Source
AI summary
In a wireless communication system, a terminal may comprise a transceiver and a processor for controlling the transceiver, wherein the processor configures a first subband for uplink transmission in a time domain interval and a second subband for downlink reception in the time domain interval, performs the uplink transmission through a first resource configured for the uplink transmission in the first subband, and performs the downlink reception through a second resource configured for the downlink reception in the second subband.