Multi-Antenna Terminal Control for Antenna Group Path Differences
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Solution Overview
Problem
In diverse terminal devices with multiple antennas spaced apart, treating all antennas as having the same characteristics leads to difficulties in achieving sufficient communication quality due to varying transmission path characteristics.
Innovation Solution
A terminal device and network node system that identifies and distinguishes between antennas with common and differing characteristics, allowing for tailored communication control settings based on specific characteristics such as delay, delay spread, and direction of arrival, enabling separate control for groups of antennas with similar characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all antennas in a terminal device are treated as having the same characteristics, then the device complexity is reduced and ease of operation is improved, but communication quality deteriorates when antennas are spaced apart with different transmission path characteristics
Solution Approach 1:
The patent segments the plurality of antennas into multiple antenna groups based on their transmission path characteristics. Each antenna group is assigned a unique identifier, allowing the network to perform differentiated communication control for each group while maintaining simplified overall system management. This segmentation resolves the contradiction by enabling quality-specific control without requiring complex individual antenna management.
Solution Approach 2:
The patent applies local quality by assigning different communication control parameters to different antenna groups based on their specific transmission path characteristics. Each antenna group can have tailored settings for communication timing, power control, and beam management, ensuring optimal performance for each group's local conditions while maintaining systematic organization through group identifiers.
2Adaptability or versatility
If antennas are spaced apart to accommodate diverse terminal device configurations, then adaptability is improved, but transmission path characteristics diverge leading to insufficient communication quality
Solution Approach 1:
The patent segments antennas into groups based on their spatial arrangement and transmission path characteristics. This allows terminal devices to maintain diverse configurations with antennas spaced apart for adaptability, while the segmentation enables the network to recognize and appropriately control each group's communication quality based on its specific characteristics.
Solution Approach 2:
The patent changes the parameter of antenna group identification to enable differentiated control. By introducing group identifiers and allowing the network to adjust communication control parameters per group, the system maintains adaptability for diverse terminal configurations while ensuring each antenna group achieves sufficient communication quality through parameter-specific optimization.
3Reliability
If separate communication control is applied to each antenna group based on characteristics, then communication quality is improved, but device complexity and information processing increase
Solution Approach 1:
The patent merges the specification of multiple antennas with similar characteristics into a single antenna group identifier. Instead of transmitting separate information for each antenna, the terminal device specifies antenna groups, reducing information overhead. The network then applies communication control to each group, maintaining quality while minimizing information loss and processing complexity.
Solution Approach 2:
The antenna group identifier serves multiple functions: it identifies a set of antennas with similar characteristics, enables differentiated communication control, and reduces information overhead. This universal identifier allows the system to achieve quality-specific control without proportionally increasing information processing requirements, as one identifier manages multiple antennas collectively.
Data Source
AI summary
A terminal device that comprises a plurality of antennas notifies a network to which the terminal device belongs of information according to which it is possible to specify at least one of, among the plurality of antennas, a second antenna having a predetermined characteristic in common with a first antenna included in the plurality of antennas, and a third antenna not having the predetermined characteristic in common with the first antenna.