Amplifier Timing Adjustment for Uplink Downlink Interference
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Solution Overview
Problem
Existing communication technologies face challenges in reducing interference between symbols/slots and ensuring proper timing alignment for signal transmission and reception, particularly when no signal needs to be forwarded, leading to noise amplification and performance degradation.
Innovation Solution
A timing adjustment method and configuration method are introduced, where an amplifier determines its timing based on predefined, preconfigured modes, or obtained information, and a base station sends configuration information to the amplifier to set the signal transmit-receive conversion time, ensuring uplink/downlink timing alignment and reducing interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the amplifier continuously amplifies full carrier signals regardless of signal presence, then the amplifier maintains readiness for signal transmission, but noise is amplified and transmission performance deteriorates
Solution Approach 1:
The amplifier dynamically adjusts its operating state between ON and OFF based on whether a signal needs to be forwarded. This dynamic state transition allows the amplifier to maintain transmission readiness when needed while avoiding noise amplification during idle periods, resolving the contradiction between reliability and noise generation.
Solution Approach 2:
The amplifier autonomously determines its own timing and state transitions based on signal detection. By self-managing its ON/OFF states without continuous external control, the amplifier can quickly respond to signal presence/absence and adjust its operation to avoid amplifying noise while maintaining readiness for transmission.
2Object-generated harmful factors
If the amplifier quickly switches between ON and OFF states to reduce noise amplification, then noise amplification is reduced, but timing alignment between uplink and downlink signals becomes difficult to maintain
Solution Approach 1:
The amplifier performs preliminary timing configuration by determining the timing of MT and RU based on predefined modes, preconfigured modes, or obtained first information before actual signal transmission. This advance timing setup ensures that when the amplifier switches between ON and OFF states, the timing alignment between uplink and downlink signals is already established, preventing interference between symbols/slots.
Solution Approach 2:
The system uses feedback mechanisms where the base station sends fourth information to configure or indicate the signal transmit-receive conversion time of the amplifier. This feedback loop allows the amplifier to adjust its timing based on actual transmission requirements, maintaining precise timing alignment even during rapid state transitions.
3Manufacturing precision
If the base station sends configuration information to the amplifier to set transmit-receive conversion time, then timing alignment is improved, but communication protocol complexity increases
Solution Approach 1:
The fourth information sent from the base station serves multiple functions: it configures or indicates the signal transmit-receive conversion time, determines timing modes, and coordinates amplifier operation. This multi-functional information exchange reduces the need for separate dedicated signaling for each timing parameter, simplifying the overall communication protocol while maintaining precise timing alignment.
Data Source
AI summary
This application discloses a timing adjustment method, a configuration method, an apparatus, an amplifier, and a base station. The timing adjustment method in embodiments of this application includes: The amplifier determines timing of a mobile termination MT and/or a radio unit RU of the amplifier based on at least one of the following: a predefined mode, a preconfigured mode, or obtained first information.