JESD204B Link Parameter Matching for Commonized Converter Interfaces

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Solution Overview

Problem

The increasing number of antennas in radio communication apparatuses leads to a rise in the number of DACs and ADCs, resulting in increased wiring and design complexity, particularly when using JESD204B interfaces, which requires separate circuit designs for devices with different parameters, increasing design and evaluation time.

Innovation Solution

A link establishment apparatus and method that adjusts parameters via JESD204B interface to establish a commonized circuit configuration, allowing devices with different parameters to connect and synchronize effectively.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If separate circuit designs are created for devices with different JESD204B parameters, then device compatibility and functionality are improved, but designing time and evaluation time increase

Engineering Contradiction:
Improvedevice compatibilityVSAvoiddesigning time and evaluation time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent implements a universal circuit design that can function with multiple different JESD204B parameters through a single commonized circuit configuration. The circuit includes parameter adjustment capabilities that allow it to adapt to different devices without requiring separate designs for each parameter set, thereby reducing designing time and evaluation time while maintaining device compatibility.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent employs parameter change mechanisms within the circuit to adjust JESD204B parameters dynamically or configurably. By incorporating adjustable parameters such as data rate, lane configuration, and timing settings, the circuit can be reconfigured to match different device requirements without physical redesign, thus resolving the contradiction between adaptability and development time.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If the number of antennas is increased to match installation situations, then communication capability is improved, but the number of DACs and ADCs increases leading to increased wiring and design complexity

Engineering Contradiction:
Improvecommunication capabilityVSAvoidwiring and design complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent creates a universal circuit design that can support multiple antenna configurations and device setups through a single standardized interface. The commonized circuit uses configurable parameters to adapt to different numbers of antennas and DACs/ADCs, reducing the need for separate wiring designs for each configuration and thereby lowering overall device complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent incorporates parameter adjustment mechanisms that allow the circuit to dynamically or statically reconfigure based on the number of antennas and data converter components. By changing parameters such as the number of lanes, data rate per lane, and timing parameters, the circuit can accommodate varying antenna counts without increasing wiring complexity or requiring separate design iterations.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS12608333B2Link establishment apparatus, method, and system
Publication Date: 2026.04.21 NEC CORP
  • US12608333B2 patent drawing
  • US12608333B2 patent drawing
  • US12608333B2 patent drawing

AI summary

A link establishment apparatus is configured to connect to another apparatus via an interface of JESD204B and perform a link establishment procedure for establishing a link with such another apparatus, the link establishment apparatus being further configured to receive a first parameter of JESD204B from the other apparatus in the link establishment procedure, and, in a case in which a second parameter of JESD204B configured in the link establishment apparatus does not match the received first parameter, change the second parameter to match the first parameter.