Distributed Scheduling Multi-Board Architecture for Wireless Transceivers

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Solution Overview

Problem

The rapid increase in data rates due to new wireless technology standards leads to quick capacity fill-up in NodeB platforms, resulting in shorter hardware life cycles and increased development costs, with conventional single-board architectures limiting feature additions and efficiency.

Innovation Solution

Implementing a multi-board architecture for L1/L2 processing boards, where scheduling for multiple carriers is distributed among separate but interconnected boards, reducing duplicated functionality and allowing synchronized scheduling across boards.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a single-board architecture is used where each board is connected to all antennas and performs both L2 scheduling and L1 processing for all cells, then all standard features are implemented on each board, but the life cycle of the boards is shortened and the ability to add additional features is limited

Engineering Contradiction:

Improveability to add featuresVSAvoidlife cycle of boards

Core Design Contradiction:

Adaptability or versatilityVSDuration of action of stationary object

Solution Approach 1:

The patent divides the L1/L2 processing functionality into separate anchor cell and secondary cell processing boards. Each board is responsible for specific cells rather than all cells, creating a segmented architecture that improves adaptability and extends board life cycle by allowing independent upgrades and additions.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent creates a universal board architecture where anchor cell processing boards and secondary cell processing boards can work together in various configurations. The standardized interfaces and protocols allow boards to serve multiple functions across different cell configurations, extending their useful life as network requirements evolve.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Productivity

If a single-board architecture is used where each board performs L2 scheduling and L1 processing for all cells, then complete functionality is achieved, but resource consumption is duplicated and efficiency is reduced

Engineering Contradiction:

Improveprocessing efficiencyVSAvoidresource consumption

Core Design Contradiction:

ProductivityVSLoss of energy

Solution Approach 1:

By segmenting the processing load across multiple specialized boards (anchor cell processing boards and secondary cell processing boards), the system eliminates duplicated L1 processing functionality. Each board processes only its assigned cells, reducing overall resource consumption while maintaining or improving processing efficiency through specialized optimization.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Instead of having each board perform all L1 processing functions for all cells (conventional approach), the patent inverts the architecture so that L1 processing is distributed to specialized boards while L2 scheduling remains centralized. This inversion eliminates duplication and improves resource utilization efficiency.

Inventive Principle:

Principle #13The other way round (Inversion)

3Speed

If new wireless technology standards are adopted to increase data rates, then data rates are improved, but the capacity of NodeB platforms fills up quickly requiring frequent development of new platforms

Engineering Contradiction:

Improvedata ratesVSAvoidlife cycle of platform

Core Design Contradiction:

SpeedVSDuration of action of stationary object

Solution Approach 1:

The patent implements a dynamic, modular board architecture that can be flexibly configured and expanded as new wireless standards are adopted. The separated L1/L2 processing boards can be independently upgraded or added to support new data rate requirements without replacing the entire platform, thereby extending platform life cycle while maintaining high data rates.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS10123287B2Distributed scheduling multi-board architecture for wireless transceiver station

Publication Date: 2018.11.06 NOKIA OF AMERICA CORP

AI summary

A transceiver station includes a first board and a second board. The first board includes an anchor cell L2 scheduler configured to schedule at least one of uplink and downlink transmissions for a multi-carrier user on only a first of the plurality of carriers. The second board includes a secondary cell L2 scheduler configured to schedule at least one of uplink and downlink transmissions for the multi-carrier user on only a second of the plurality of carriers, the second board being separate from, but interconnected with the first board.