User Equipment Transmission State Locking for Stable RF Testing
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Solution Overview
Problem
Current technologies fail to stabilize the transmission state of user equipment, particularly in transmission diversity mode, due to time-varying factors affecting RF and antenna performance, especially in 5G millimeter wave and below 6 GHz frequency bands, leading to unstable test results.
Innovation Solution
A method for user equipment to lock transmission states through downlink control signals, enabling stable transmission modes and parameters, including diversity modes, antenna selection, power allocation, and delay parameters, using uplink feedback and network device signaling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If transmission diversity mode is used to adapt to real environment changes, then adaptability is improved, but transmission state stability deteriorates
Solution Approach 1:
The patent implements a dynamic transmission state locking mechanism where the network device controls the user equipment to lock transmission parameters (beam, antenna, power, delay) based on varying test scenarios. The system transitions from static parameter settings to dynamic locking/unlocking operations, allowing the transmission state to be stable when locked and adaptable when unlocked, thus resolving the contradiction between adaptability and stability.
2Stability of the object's composition
If beam locking function is implemented to stabilize test beam, then transmission state stability is improved, but parameter locking capability deteriorates
Solution Approach 1:
The patent extends the beam locking function to a comprehensive transmission state locking mechanism that simultaneously locks multiple parameters including beam, transmit antenna selection, transmit power allocation, and delay parameters. The network device sends locking indication information that triggers the user equipment to lock all these parameters together, making the locking mechanism universal and multi-functional rather than limited to beam only.
3Measurement precision
If transmission diversity switching is performed to improve RF performance testing, then measurement precision is improved, but test reliability deteriorates
Solution Approach 1:
The patent implements a preliminary locking action before RF performance testing begins. The network device sends a locking indication information to the user equipment, which locks the transmission parameters (beam, antenna, power, delay) before the test starts. This preliminary locking ensures that during the entire testing process, the transmission state remains stable and unchanged, providing reliable and repeatable test results while maintaining the ability to perform transmission diversity switching when needed.
Data Source
AI summary
The present invention relates to a method executed by a user equipment for locking the transmission state of the equipment, comprises: receiving a downlink control signal for activating the transmission state locking of the user equipment; completing the corresponding transmission state locking after receiving the downlink control signal, and transmitting an uplink signal to feedback the result of the locking completion, wherein the down-link control signal for activating the transmission state locking of the user equipment includes a transmission state locking mode and parameters.