Sub-Network Frequency Band Negotiation for 6G Capability Matching
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Solution Overview
Problem
Existing communication systems lack an efficient method for a user equipment (UE) to determine and configure sub-network frequency bands, especially in 6G networks, considering hardware capabilities and priorities, to create and manage sub-networks effectively, particularly in scenarios with extreme performance requirements and limited coverage.
Innovation Solution
A UE determines a list of common and candidate frequency bands, associated with priorities, and communicates this information to a network node to facilitate sub-network creation, allowing the network node to allocate resources based on UE and sub-network device capabilities and priorities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the UE determines and reports multiple frequency bands with priorities to the network node, then the sub-network creation flexibility and spectrum utilization are improved, but the signaling overhead and device complexity increase
Solution Approach 1:
The frequency bands are segmented into two distinct lists: common frequency bands (supported by both UE and sub-network devices) and candidate frequency bands (supported by UE and network node). This segmentation allows the UE to manage complex frequency band information in an organized manner, reporting each list with associated priorities to enable flexible sub-network creation while maintaining systematic device operation
Solution Approach 2:
The UE performs preliminary determination of common and candidate frequency bands and their associated priorities before actual sub-network creation. By pre-calculating and reporting these frequency band lists with priorities to the network node in advance, the UE enables the network to make informed allocation decisions, thereby improving sub-network creation flexibility without increasing real-time processing complexity
2Productivity
If the network node allocates frequency bands based on UE capability information and priorities, then the resource allocation efficiency and spectrum utilization are improved, but the information processing requirements and system complexity increase
Solution Approach 1:
The UE provides feedback to the network node by reporting common and candidate frequency bands with associated priorities based on its capability information. This feedback mechanism enables the network node to make efficient resource allocation decisions by considering both UE capabilities and priority requirements, thereby improving resource allocation efficiency while maintaining manageable system complexity through structured information exchange
Solution Approach 2:
The system changes the parameter representation by introducing priority values associated with each frequency band in the common and candidate lists. This parameter enhancement allows the network node to perform more efficient resource allocation by considering priority levels, improving productivity without significantly increasing system complexity as the priority parameter provides a simple yet effective decision-making criterion
3Reliability
If the UE reports intra-band CA capabilities to the network node, then the communication reliability and performance are improved, but the signaling overhead increases
Solution Approach 1:
The UE reports intra-band carrier aggregation capabilities selectively for the determined common and candidate frequency bands rather than for all possible bands. This partial reporting approach provides the network node with sufficient information to ensure communication reliability for the actually used bands, while avoiding the excessive signaling overhead that would result from reporting all possible band combinations
Data Source
AI summary
Embodiments of the present disclosure relate to determining sub-network frequency bands. In an aspect, a terminal device determines a first list of common frequency bands and a second list of candidate frequency bands to be used for creating a sub-network. The terminal device transmits, to a network node, first information indicating the first list of common frequency bands, the second list of candidate frequency bands, and the priorities. The terminal device determines second information for communication with the network node based on receiving, from the network node, a request for the second information on supported intra-band carrier aggregation capabilities of the terminal device. The terminal device transmits the second information to the network node. As such, a grant and/or an assignment of a sub-network can be made by a network node based on additional capability information of a terminal device and sub-network devices.