Dynamic Radio Transceiver Chain Allocation for Backhaul and RAN

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Solution Overview

Problem

Current wireless systems lack flexibility in reallocating signal paths between wireless Base Stations and their Backhaul links and Radio Access Networks, limiting dynamic adjustments in wireless capacity and signal quality.

Innovation Solution

A system that splits radio transceiver chains between Backhaul links and Radio Access Networks, allowing for dynamic allocation of wireless capacity and signal quality by synthesizing digital Baseband signals and allocating them to either the Backhaul link or the Radio Access Network, enabling reallocation of resources as needed.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If radio transceiver chains are fixed to specific signal paths, then signal path stability is maintained, but flexibility in reallocating wireless capacity is reduced

Engineering Contradiction:
Improveflexibility in reallocating wireless capacityVSAvoidsignal path configuration complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements dynamic allocation of radio transceiver chains to different signal paths (Backhaul link and RAN) based on real-time network conditions. The system can dynamically switch which chains serve which function, transforming the static configuration into a dynamic one that adapts to changing capacity requirements and signal quality needs.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

Radio transceiver chains are designed to be multi-functional, capable of serving either the Backhaul link or the RAN depending on allocation needs. This universality allows the same hardware resources to be flexibly reassigned between different network functions, improving adaptability without requiring dedicated chains for each function.

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

2Productivity

If radio transceiver chains are dedicated to specific functions, then function reliability is improved, but resource utilization efficiency is reduced

Engineering Contradiction:
Improveresource utilization efficiencyVSAvoidsignal path reliability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system dynamically adjusts the allocation of radio transceiver chains between Backhaul and RAN functions based on real-time performance monitoring. When signal quality degrades on a particular path, the system can dynamically reallocate chains to maintain reliability while optimizing overall resource utilization.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent incorporates feedback mechanisms that monitor signal quality and network conditions, using this information to make informed decisions about chain allocation. This feedback loop ensures that reliability requirements are met while maximizing productivity by allocating resources to where they are most needed.

Inventive Principle:
Principle #23Feedback

3Adaptability or versatility

If signal paths are fixed without direct connection, then system simplicity is maintained, but flexibility in altering signal quality is reduced

Engineering Contradiction:
Improveflexibility in altering signal qualityVSAvoidsignal path structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent introduces a signal path switching mechanism that acts as an intermediary between the fixed radio transceiver chains and the network functions. This mediator enables flexible routing and quality adjustment by dynamically connecting chains to different destinations without requiring direct flexible connections between all components.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS9769696B2Sharing of radio resources between a backhaul link and a radio access network
Publication Date: 2017.09.19 AVIAT U S
  • US9769696B2 patent drawing
  • US9769696B2 patent drawing
  • US9769696B2 patent drawing

AI summary

Systems and methods are presented for effectively sharing a plurality of radio transceiver chains between a Backhaul link and a Radio Access Network (RAN), in which there is a wireless Base Station (BS) with some number of radio transceiver chains, the system initially allocates such chains between the Backhaul link and the RAN according to some criterion, the system dynamically monitors the performance of the Backhaul link and RAN to detect any deficiencies in desired levels of performance, and the system then reallocates the radio transceiver chains between the Backhaul link and the RAN in a manner calculated to help achieve the desired levels of performance. Optionally and in various embodiments, the digital signals to and from the Backhaul link, or to and from the RAN, may be MIMO signals, MRC signals, MMSE signals, or ML signals.