Multi-RF Chain Measurement Configuration for LTE-NR Terminals
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In conventional wireless communication systems, the need for RF chain retuning to measure different frequency bands disrupts downlink data transmission, affecting throughput performance, especially in multi-RF chain scenarios where frequencies differ significantly, such as LTE and NR networks.
Innovation Solution
A method where a terminal with multi-RF capability establishes multiple RF chains, allowing network nodes to coordinate measurement requests and configuration across these chains, enabling RF measurements without interrupting data transmission by using one RF chain for measurement while another handles data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a measurement gap is configured for the terminal to retune the RF chain for measurement, then measurement accuracy is ensured, but downlink data transmission is interrupted and throughput performance deteriorates
Solution Approach 1:
The patent divides the RF chain into multiple independent RF chains, allowing one RF chain to handle data transmission while another performs measurements. This segmentation eliminates the need to interrupt data transmission for measurements, as each RF chain operates independently on different frequency bands.
Solution Approach 2:
The terminal is equipped with multiple RF chains that can simultaneously perform different functions - one RF chain maintains data transmission while another performs measurements. This multi-functionality allows the system to achieve both continuous data transmission and accurate measurements without compromise.
2Device complexity
If a single RF chain is used for both data transmission and measurement, then device complexity is reduced, but measurement requires interrupting data transmission
Solution Approach 1:
The single RF chain is segmented into multiple independent RF chains, each capable of operating on different frequency bands simultaneously. This segmentation allows one chain to be dedicated to data transmission while another handles measurements, eliminating the need to interrupt transmission for measurements.
3Productivity
If multiple RF chains are deployed for simultaneous data transmission and measurement, then throughput performance is maintained, but device complexity increases
Solution Approach 1:
Multiple RF chains are implemented where each chain can independently perform data transmission or measurements. This multi-functionality allows the system to maintain continuous throughput while performing measurements, as the measurement RF chain does not interfere with the data transmission RF chain.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The application relates to the field of wireless communication and provides a measurement configuration method and system for a terminal with a multi-Radio Frequency (RF) receiving capability and the terminal. Therefore, in a multi-RF-chain scenario, throughput performance of a terminal is ensured as much as possible on the premise of ensuring measurement accuracy. In the application, the terminal is connected with a first network node in a first wireless network through a first RF chain; the terminal is connected with a second network node in a second wireless network through a second RF chain; the first network node sends measurement object information to the second network node; the second network node generates measurement configuration information according to the measurement object information; the terminal acquires the measurement configuration information; the terminal implements RF measurement by the second RF chain according to the measurement configuration information; and the first network node acquires an RF measurement result of the terminal.