Base Station Wireless Link Setup via Direct Inter-Station Interface

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Solution Overview

Problem

Existing wireless communication systems require additional components and involve the mobile network or core network to establish communication paths between base stations, which can increase load and complexity.

Innovation Solution

A wireless communication system with base stations equipped with communication path establishment means and call processing means that allow direct wireless link setup between base stations without relying on the mobile network or core network, using existing components like the X2 interface for inter-base-station communication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If base stations communicate through the mobile network or core network, then communication path establishment is possible, but the load on mobile backhaul and core network increases

Engineering Contradiction:

Improvecommunication path establishmentVSAvoidload on mobile backhaul and core network

Core Design Contradiction:

ReliabilityVSLoss of energy

Solution Approach 1:

The patent introduces a direct wireless communication interface between base stations as an intermediary path, bypassing the mobile network and core network for inter-base-station communication. This mediator approach reduces the load on the mobile backhaul and core network while maintaining reliable communication path establishment between base stations.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If multiple components are added to existing base stations, then wireless communication path establishment between base stations becomes possible, but device complexity increases

Engineering Contradiction:

Improvewireless communication path establishmentVSAvoidnumber of components to be added

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent makes the existing air interface components multi-functional by enabling them to serve both mobile terminal communication and inter-base-station communication purposes. The communication path establishment means and call processing means are integrated into existing base station architectures, allowing the same wireless interface to handle multiple communication types without requiring completely separate dedicated components.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Ease of manufacture

If base stations use existing air interface components, then component modification is minimized, but additional communication path establishment components are required

Engineering Contradiction:

Improvecomponent modificationVSAvoidcommunication path establishment components

Core Design Contradiction:

Ease of manufactureVSDevice complexity

Solution Approach 1:

The patent merges the inter-base-station communication path establishment functions with the existing air interface components. The communication path establishment means and call processing means are combined with the existing wireless communication infrastructure, allowing base stations to establish direct wireless links using integrated rather than separate dedicated components.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS10212701B2Wireless communication system, base station and wireless communication method

Publication Date: 2019.02.19 NEC CORP

AI summary

The first base station (2) includes a first call processing unit (22) and a communication path establishment unit (24). The communication path establishment unit (24) performs processing for establishing a wireless link with the second base station (4). The first call processing unit (22) performs call processing for setting the wireless communication path to the second base station (4) via the communication path establishment unit (24). The second base station (4) includes a second call processing unit (42) and a transfer unit (46). The second call processing unit (42) performs call processing for setting the wireless communication path to the first base station (2). When the transfer unit (46) receives a signal for the call processing from the first base station (2), the transfer unit (46) transfers this signal to the second call processing unit (42).