Base Station NE-DC Band Combination Indexing
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Solution Overview
Problem
There is a need for a method that allows base stations to coordinate and configure an NE-DC band combination based on UE capability signaling from a terminal, indicating the band combinations that can be used for NE-DC.
Innovation Solution
A network node is provided with a receiving unit to receive signals indicating band combinations for specific dual connectivity, a control unit to assign unique indexes to these band combinations, and a transmitting unit to transmit information about the configured band combinations to another network node.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If base stations coordinate to configure NE-DC band combinations based on UE capability signaling, then communication efficiency and frequency band management are improved, but system complexity and coordination overhead increase
Solution Approach 1:
The patent segments the band combination information into two distinct groups: a first group for band combinations usable only for specific dual connectivity (NE-DC), and a second group for band combinations usable for the specific dual connectivity among others. This segmentation allows the system to handle different band combination types separately, improving coordination efficiency while managing complexity through structured organization of capability information.
Solution Approach 2:
The terminal performs preliminary action by signaling its band combination capabilities to the base station before actual NE-DC configuration. The UE capability signaling pre-informs the network about supported band combinations, allowing base stations to coordinate configuration in advance without real-time negotiation, thus improving communication efficiency while reducing coordination overhead during operation.
2Reliability
If base stations coordinate NE-DC band combination configuration, then frequency band overlapping is avoided, but coordination overhead and signaling complexity increase
Solution Approach 1:
The patent divides band combinations into distinct groups (first group for NE-DC only, second group for NE-DC among other options) to enable precise frequency band management. This segmentation allows base stations to coordinate specifically for NE-DC scenarios without needing to negotiate all possible band combinations, reducing coordination overhead while ensuring reliable frequency band allocation and avoiding overlapping.
3Measurement precision
If unique indexes are assigned to band combinations, then identification accuracy is improved, but signaling message size and processing complexity increase
Solution Approach 1:
The patent transforms band combination identification from detailed parameter descriptions to compact index representations. Each band combination in the third group (combining first and second groups) is assigned a unique index, changing the identification parameter from extensive band combination details to concise index values. This reduces signaling message size while maintaining unique identification capability through the indexed reference system.
Data Source
AI summary
A base station includes a receiving unit that receives capability information including information indicating a first group consisting of band combinations that can be used only for a specific dual connectivity, and information indicating a second group consisting of band combinations that can be used for the specific dual connectivity in a terminal; a control unit that assigs a plurality of indexes to a corresponding plurality of band combinations of a third group, the third group consisting of the plurality of band combinations consisting of the band combinations of the first group and the band combinations of the second group, so that each band combination of the plurality of band combinations of the third group can be identified; and a transmitting unit that transmits, to another base station, a signal that can be used for communication between the base stations, the signal including the indexes.