Digital Interface Word Length Adaptation for Signal Quality
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Solution Overview
Problem
Current digital interfaces in mobile devices, such as those between RF and BB ICs, face inefficiencies in data transmission due to fixed word lengths, which do not adapt to varying signal quality, leading to suboptimal performance in terms of power consumption and signal quality.
Innovation Solution
The method dynamically adjusts the word length of digital data transmission based on signal quality parameters like SNR, using preconfigured logical channels and adaptive mapping to switch between different word lengths, ensuring optimal signal quality while minimizing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a fixed word length is used for data transmission through the digital interface, then the system is simple to implement, but the power consumption is high and signal quality is suboptimal under varying conditions
Solution Approach 1:
The patent implements dynamic word length adjustment where the word length changes based on signal quality conditions. The system transitions from a static fixed word length to a dynamic adaptive word length that varies with operating conditions, specifically adjusting between different word lengths (e.g., 10-bit, 12-bit, 14-bit, 16-bit) based on SNR measurements and channel conditions.
Solution Approach 2:
The patent changes the parameter of word length based on signal quality metrics. The system monitors signal conditions (such as SNR, channel quality indicators) and adjusts the word length parameter accordingly - using shorter word lengths when signal quality is good (reducing power consumption) and longer word lengths when signal quality degrades (maintaining signal fidelity).
2Reliability
If a fixed word length is used for data transmission, then the system structure is simple, but the signal quality is not optimized for varying channel conditions
Solution Approach 1:
The patent implements a feedback mechanism where the system monitors signal quality parameters (SNR, channel quality indicators) and uses this feedback to adjust the word length. The baseband processor receives feedback about transmission conditions and dynamically adjusts the word length for subsequent transmissions, creating a closed-loop adaptive system that optimizes signal quality.
Solution Approach 2:
The system transitions from a static fixed word length to a dynamic adaptive word length that varies with operating conditions. The word length is adjusted in real-time based on channel conditions, allowing the system to maintain optimal signal quality across varying transmission environments.
3Reliability
If the word length is increased to improve signal quality, then the SNR improves, but the power consumption increases
Solution Approach 1:
The patent dynamically changes the word length parameter based on signal quality requirements. When signal quality is sufficient, the system uses shorter word lengths to reduce power consumption. When signal quality degrades, the system extends the word length to maintain SNR, thus optimizing the trade-off between power consumption and signal quality in real-time.
Data Source
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AI summary
There are disclosed systems and methods that dynamically vary the word length of data being transmitted through a digital interface. In one embodiment, the method comprises: (i) obtaining at least one parameter indicative of a quality of a signal; (ii) if the at least one parameter indicates that the quality of the signal is above a threshold, then transmitting the data as a number of digital words at a first predetermined word length; (ii) if the at least one parameter indicates that the quality of the signal is below the threshold, then transmitting the data as a number of digital words at a second predetermined word length. The second predetermined word length is different from the first predetermined word length.