Rate Matching Device for REC-RE Data Exchange

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Solution Overview

Problem

In wireless systems, when a Radio Equipment Control (REC) node connects to a Radio Equipment (RE) node with a different line bit rate, both nodes operate at a lower line bit rate, resulting in wasted processing capability and inefficiency, leading to cost and efficiency losses.

Innovation Solution

A rate matching device with multiple interfaces and a map function block is used to exchange data between REC and RE, allowing user data to be mapped and transmitted across different line bit rates, ensuring optimal processing capability utilization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If REC connects to RE with different line bit rates, then network connectivity is established, but both nodes must operate at the lower line bit rate causing waste of processing capability

Engineering Contradiction:
Improveprocessing capability utilizationVSAvoidline bit rate compatibility
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

A rate matching device is introduced as an intermediary component between REC and RE. This device includes a rate matching unit that receives data at a first line bit rate from one node and converts it to a second line bit rate for the other node, enabling the two nodes to operate at their respective highest capabilities without being constrained by the lower of the two rates. The rate matching device thus resolves the contradiction by mediating the bit rate difference.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The rate matching device dynamically changes the data transmission parameter (line bit rate) between different nodes. When REC and RE have different line bit rates, the rate matching unit adjusts the data rate parameter to match the capabilities of each node, allowing REC to operate at its highest capability while RE operates at its highest capability, thereby eliminating the waste of processing capability.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If REC and RE work under lower line bit rate, then compatibility is maintained, but cost and efficiency are wasted

Engineering Contradiction:
Improveline bit rate compatibilityVSAvoidprocessing capability waste
Core Design Contradiction:
Adaptability or versatilityVSLoss of energy

Solution Approach 1:

The rate matching device serves as a mediator that maintains compatibility between nodes with different line bit rates while preventing the waste of processing capability. Instead of both nodes being forced to operate at the lower rate, the rate matching unit converts data between the different rates, allowing each node to utilize its full processing capability.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system changes the data transmission parameter (line bit rate) dynamically based on the capabilities of connected nodes. The rate matching unit adjusts the bit rate parameter to optimize both compatibility and efficiency, ensuring that neither node operates below its capability while maintaining connection compatibility.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS9883471B2Method and device for rate matching
Publication Date: 2018.01.30 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
  • US9883471B2 patent drawing
  • US9883471B2 patent drawing
  • US9883471B2 patent drawing

AI summary

Embodiments of this invention provide a rate matching device used for exchanging data between REC and at least one RE. The rate matching device comprises at least one first interface arranged to exchange user data between the REC and the rate matching device, at least one second interface arranged to exchange user data between the rate matching device and the at least one RE, and a map function block arranged to map the user data between at least one first interface and at least one second interface. Embodiments of this invention also provide a method for exchanging data between REC and at least one RE through the rate matching device.