Multi-Band Uplink Switching With RF Chain State Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current protocols do not provide clear guidelines for a terminal device to determine the need to switch the transmission state of a radio frequency chain when switching among multiple bands, affecting uplink data transmission performance.
Innovation Solution
A method for determining uplink transmission that allows a terminal device to switch among multiple bands by configuring port configurations for different uplink transmissions and managing radio frequency chain states to ensure efficient data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal device switches among at least three bands to ensure data transmission performance, then the uplink data transmission performance is improved, but the complexity of determining whether to switch the radio frequency chain transmission state increases
Solution Approach 1:
The patent segments the determination process into two independent parts: first determining whether band switching is needed based on current and next downlink carriers, and second determining radio frequency chain switching based on the first determination result and port configurations. This segmentation reduces the complexity of the overall determination process while maintaining reliable uplink transmission performance across multiple bands.
Solution Approach 2:
The patent applies preliminary action by first determining whether band switching is needed before determining the radio frequency chain switching state. The first determination result serves as a prerequisite for the second determination, allowing the terminal device to make informed decisions about transmission state switching based on pre-established band switching requirements and port configuration comparisons.
2Reliability
If the terminal device switches among at least three bands, then the uplink data transmission performance is improved, but the time required for determining and executing switching operations increases
Solution Approach 1:
The patent performs preliminary determination of band switching requirements and port configuration comparisons before executing the actual switching operations. By pre-determining whether band switching is needed and comparing port configurations in advance, the terminal device can execute switching operations more efficiently with reduced decision-making time during actual transmission transitions.
Solution Approach 2:
The patent introduces dynamic adjustment capabilities where the terminal device can flexibly determine switching operations based on real-time comparisons of port configurations between current and next uplink transmissions. This dynamic approach allows the system to adapt switching timing and requirements according to actual transmission conditions, optimizing the balance between transmission performance and switching time.
Data Source
AI summary
Example methods and apparatus for determining to switch an uplink transmission are described. In one example method, a terminal device determines a first port configuration, where the first port configuration is used for a first uplink transmission, and the terminal device is capable of performing uplink switching on at least three bands. The terminal device determines a second port configuration, where the second port configuration is used for a second uplink transmission, and the first uplink transmission is earlier than the second uplink transmission. The terminal device performs a first operation based on the first port configuration and the second port configuration. The first operation includes at least one of the following: not expected to perform an uplink transmission within switching time from the first uplink transmission to the second uplink transmission; or determining switching time from the first uplink transmission to the second uplink transmission.