Uplink Frequency Resource Switching via Dynamic DCI Formats
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems, particularly in 5G NR, face inefficiencies in uplink transmitter frequency resource switching due to fixed DCI format sizes that do not adapt to varying configurations of frequency resources, leading to suboptimal radio spectrum usage and increased power consumption.
Innovation Solution
Implementing multiple DCI formats of different sizes to indicate switching to single or multiple uplink frequency resources, allowing for dynamic parsing and efficient allocation of frequency resources based on the number of Tx chains and frequency bands, thereby improving radio spectrum usage and user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If fixed DCI format sizes are used for uplink transmitter frequency resource switching, then device complexity is reduced and ease of operation is improved, but radio spectrum usage efficiency deteriorates and power consumption increases
Solution Approach 1:
The patent implements dynamic DCI format sizes that adapt to the number of frequency resources being switched. Different DCI formats (e.g., format 0_1, 0_2, 0_3) with different payload sizes are used depending on whether 1, 2, or 3 frequency resources are being allocated, allowing the control information to be compact and efficient rather than fixed and oversized.
Solution Approach 2:
The patent changes the parameter of DCI format size based on the configuration of frequency resources. By adjusting the DCI payload size to match the actual number of resources being allocated (1 resource = smaller format, 2-3 resources = larger format), the system optimizes spectrum usage while maintaining ease of operation through standardized format structures.
2Device complexity
If fixed DCI format sizes are used for uplink transmitter frequency resource switching, then device complexity is reduced, but power consumption increases
Solution Approach 1:
The patent implements dynamic DCI format sizes that adapt to the number of frequency resources being switched. Different DCI formats (e.g., format 0_1, 0_2, 0_3) with different payload sizes are used depending on whether 1, 2, or 3 frequency resources are being allocated, allowing the control information to be compact and efficient rather than fixed and oversized.
Solution Approach 2:
The patent applies partial action by using only the necessary DCI format size for each specific resource allocation scenario. Instead of always using the largest fixed format, the system selects the minimal sufficient format (smaller formats for 1 resource, larger formats for 2-3 resources), reducing unnecessary power consumption while maintaining adequate functionality.
3Productivity
If multiple DCI formats of different sizes are implemented for frequency resource switching, then radio spectrum usage efficiency is improved, but device complexity increases
Solution Approach 1:
The patent segments DCI formats into different size categories (e.g., format 0_1, 0_2, 0_3 with different payload sizes) based on the number of frequency resources being allocated. This segmentation allows each format to be optimized for its specific use case, improving spectrum efficiency while managing device complexity through structured classification.
Solution Approach 2:
The patent creates universal DCI format structures that can handle multiple frequency resource configurations. By designing formats that can accommodate 1, 2, or 3 resources through standardized fields and parameters, the system achieves multi-functionality that improves spectrum usage while keeping device complexity manageable through consistent format design principles.
4Productivity
If multiple DCI formats of different sizes are implemented for frequency resource switching, then radio spectrum usage efficiency is improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic DCI format sizes that adapt to the number of frequency resources being switched. Different DCI formats (e.g., format 0_1, 0_2, 0_3) with different payload sizes are used depending on whether 1, 2, or 3 frequency resources are being allocated, allowing the control information to be compact and efficient rather than fixed and oversized.
Solution Approach 2:
The patent changes the parameter of DCI format size based on the configuration of frequency resources. By adjusting the DCI payload size to match the actual number of resources being allocated (1 resource = smaller format, 2-3 resources = larger format), the system optimizes spectrum usage while maintaining ease of operation through standardized format structures.
Data Source
AI summary
Aspects described herein relate to monitoring a control channel search space for downlink control information (DCI) based on at least two DCI formats associated with switching to one or more uplink frequency resources of multiple configured uplink frequency resources, decoding the DCI received in the control channel search space based on one of the at least two DCI formats and according to a size associated with the one of the at least two DCI formats, including decoding a field from the DCI, and switching to the one or more uplink frequency resources indicated in a frequency resource switching table based on the field. Other aspects relate to encoding and transmitting the DCI.