Reference Signal Power Consistency in 5G Wireless Nodes
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Solution Overview
Problem
In wireless communication systems, particularly in 5G systems, there is a challenge in accurately determining power consistency and phase continuity between reference signals, which is crucial for precise channel estimation and enhanced uplink transmission capacity.
Innovation Solution
A method where a first node transmits a first reference signal and a second reference signal in different time-domain resource blocks, maintaining power consistency and phase continuity if a specific condition set is satisfied. This condition set includes the reference signals being identified by the same index and both resource blocks belonging to a reference time window.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If reference signals are transmitted in different time-domain resource blocks without strict condition checking, then transmission flexibility is improved, but channel estimation precision deteriorates due to power inconsistency and phase discontinuity
Solution Approach 1:
The patent implements dynamic condition checking for reference signal transmission. The transmitter determines whether to maintain power consistency and phase continuity based on whether specific conditions are satisfied (e.g., time domain resource block allocation, reference signal configuration). This dynamic approach allows flexible transmission when conditions permit while ensuring measurement precision when conditions require it, resolving the contradiction between transmission flexibility and channel estimation precision.
2Measurement precision
If power consistency and phase continuity are maintained between all reference signals, then channel estimation precision is improved, but system complexity increases due to additional condition checking and control mechanisms
Solution Approach 1:
The patent applies local quality by maintaining power consistency and phase continuity only when specific conditions are satisfied, rather than universally across all reference signals. The transmitter checks conditions locally for each reference signal transmission decision, applying power consistency and phase continuity controls only where needed. This selective approach improves channel estimation precision for critical transmissions while avoiding unnecessary complexity in scenarios where such controls are not required.
3Measurement precision
If condition checking mechanisms are implemented to determine power consistency and phase continuity, then measurement precision is improved, but ease of operation deteriorates due to increased control overhead
Solution Approach 1:
The patent implements self-service mechanisms where the transmitter autonomously determines whether to maintain power consistency and phase continuity by checking conditions against pre-configured parameters. The system self-manages the condition checking and control decisions without requiring manual intervention or complex external coordination. This automated approach improves measurement precision through systematic condition checking while maintaining ease of operation by eliminating manual control overhead.
Data Source
AI summary
A method and a device in nodes used for wireless communication. A first node transmits a first reference signal and a second reference signal respectively in a first time-domain resource block and a second time-domain resource block. The first node maintains power consistency and phase continuity among multiple first-type signals belonging to a reference time window in time domain; a duration of the reference time window is no larger than a first threshold; the first reference signal and the second reference signal respectively belong to different transmission occasions; whether the first node maintains power consistency and phase continuity between the first reference signal and the second reference signal is related to whether a first condition set is satisfied; the first condition set comprises a first condition; the first condition comprises: the first reference signal and the second reference signal being identified by a same index.