Adaptable Receiver Parameters for Signal Processing

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Solution Overview

Problem

Conventional receiver architectures in cellular communication systems have fixed digital filtering and gain parameters regardless of the service and frequency band, leading to unnecessary high current consumption and reduced performance in scenarios where better peak rates could be achieved.

Innovation Solution

Adapting receiver signal processing parameters, including digital filter coefficients and automatic gain control settings, based on the current service and frequency band to optimize performance and minimize current consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If fixed digital filtering and gain parameters are used in conventional receiver architectures, then the receiver can operate across all services and frequency bands, but current consumption becomes unnecessarily high and performance is reduced in scenarios where optimization could improve peak rates

Engineering Contradiction:
Improvereceiver operation across services and frequency bandsVSAvoidcurrent consumption
Core Design Contradiction:
Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The patent implements dynamic adaptation of receiver parameters by continuously monitoring signal characteristics (such as signal strength, interference levels, and channel conditions) and adjusting digital filter coefficients and gain parameters in real-time. This transforms the fixed parameter architecture into a dynamic system that adapts to current operating conditions, reducing power consumption when high performance is not required while maintaining versatility across different services and frequency bands.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes physical parameters (filter coefficients, gain values, sampling rates) based on detected signal conditions and service requirements. By modifying these parameters dynamically rather than maintaining fixed values, the receiver achieves lower current consumption in favorable conditions while preserving the ability to operate across all services and frequency bands through parameter reconfiguration.

Inventive Principle:
Principle #35Parameter changes

2Stability of the object's composition

If fixed digital filtering and gain parameters are used in conventional receiver architectures, then the receiver maintains consistent operation, but performance is reduced in scenarios where better peak rates could be achieved

Engineering Contradiction:
Improvereceiver operation consistencyVSAvoidpeak data rates
Core Design Contradiction:
Stability of the object's compositionVSProductivity

Solution Approach 1:

The patent introduces dynamic parameter adjustment that allows the receiver to optimize peak data rates by adapting filter and gain parameters to current channel conditions, while maintaining operational consistency through systematic control. The system monitors signal quality metrics and adjusts parameters accordingly, ensuring stable operation across varying conditions while achieving higher peak rates when conditions permit.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent implements feedback mechanisms where receiver performance metrics (such as signal-to-noise ratio, bit error rate, and received signal strength) are continuously monitored and used to adjust digital filter and gain parameters. This closed-loop control maintains operational consistency by systematically responding to changing conditions while enabling peak rate optimization when feedback indicates favorable channel conditions.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS8401128B2Method and system for adaptable receiver parameters
Publication Date: 2013.03.19 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
  • US8401128B2 patent drawing
  • US8401128B2 patent drawing
  • US8401128B2 patent drawing

AI summary

A method and system are described for processing a received signal at a receiver in a communication system. The receiver includes a digital filter and automatic gain control means. Information indicating the frequency band of operation and the type of service of the received signal is received at the receiver from the communication system. The gain and filtering parameters of the receiver are set according to the received information. The received signal is processed at the receiver using the gain and filtering parameters. Optionally, a determination of whether the received signal contains adjacent channel interference above a predetermined allowable threshold may also be made and the determination may then be used in setting the gain and filtering parameters.