Network-Controlled Repeater Timing Using Reference Signals in 5G/NR
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing transmission timing for repeaters, particularly in 5G/NR networks, which are crucial for supporting increased data traffic and diverse applications.
Innovation Solution
The implementation of network-controlled repeaters (NCRs) that adjust transmission timing based on received timing values and reference signals, utilizing a transceiver and processor to manage NCR access links and control links for improved timing synchronization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If network-controlled repeaters adjust transmission timing based on received timing values and reference signals, then timing synchronization is improved, but device complexity increases
Solution Approach 1:
The patent introduces a network controller as an intermediary that manages and coordinates the repeaters. The network controller receives timing values from the base station and distributes them to appropriate repeaters, centralizing the complexity of timing management rather than embedding it in each repeater. This allows repeaters to maintain simpler structures while achieving precise timing synchronization through centralized control.
Solution Approach 2:
The patent implements feedback mechanisms where repeaters transmit reference signals and timing information back to the network controller and base station. This feedback loop enables continuous timing adjustment and synchronization, with the network controller using the received timing values to optimize repeater operations. The feedback principle allows the system to maintain precise timing synchronization through iterative refinement rather than complex static configurations.
2Productivity
If repeaters use processing to improve signal forwarding, then communication efficiency is improved, but loss of time increases
Solution Approach 1:
The patent applies preliminary action by having the network controller pre-configure repeaters with timing values and parameters before actual signal forwarding begins. The repeaters receive and store timing configuration information in advance, so when signals need to be forwarded, the processing can begin immediately without configuration delays. This pre-positioning of control parameters reduces the time loss associated with real-time decision-making and processing.
Data Source
AI summary
Apparatuses and methods for transmission timing for repeaters. A method for operating a network-controlled repeater (NCR) includes receiving, by an NCR mobile termination (NCR-MT) entity on an NCR control link, information for a timing value for an NCR forwarding (NCR-Fwd) entity. The method further includes determining, by the NCR, a timing adjustment for an NCR access link based on the timing value and a reference signal (RS). The method further includes receiving, by the NCR-Fwd entity on the NCR access link, a radio frequency (RF) signal based on the timing adjustment.