Group Identifier for Wireless Interference Coordination

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Solution Overview

Problem

Classic inter-cell interference coordination techniques are inadequate for wireless cellular telecommunication networks that include home base stations and relays, as they complicate the management of interference due to varying coverage areas and spectral efficiency, making it difficult to maintain efficient interference control.

Innovation Solution

A method and device that form groups of wireless telecommunication devices, allocating a shared group identifier and common parameters for each device within the group, allowing mobile terminals to report interference as if from a single base station, enabling centralized interference coordination across the network.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If classic ICIC techniques are used in networks with home base stations and relays, then interference control can be maintained in traditional cells, but interference management becomes complicated due to varying coverage areas and spectral efficiency

Engineering Contradiction:

Improveinterference controlVSAvoidinterference management

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges multiple wireless telecommunication devices into a single group represented by one group identifier. This allows neighbor base stations to treat the entire group as a single entity for interference coordination purposes, simplifying the management complexity while maintaining reliable interference control across heterogeneous network elements including home base stations and relays.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The group identifier serves multiple functions: it identifies the group of wireless telecommunication devices to mobile terminals, enables interference reporting and coordination, and allows universal treatment of heterogeneous devices (home base stations, relays, traditional base stations) as a single unit. This multi-functionality reduces the complexity of managing different device types separately.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Measurement precision

If multiple identifiers are allocated to each wireless telecommunication device, then individual device identification is improved, but interference coordination efficiency decreases due to increased signaling overhead

Engineering Contradiction:

Improvedevice identificationVSAvoidinterference coordination efficiency

Core Design Contradiction:

Measurement precisionVSProductivity

Solution Approach 1:

Instead of treating each wireless telecommunication device individually with separate identifiers, the patent combines multiple devices into a single group identified by one group identifier. This reduces signaling overhead and improves interference coordination efficiency while still providing precise identification at the group level, which is sufficient for ICIC purposes.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent segments the identification function into two levels: group-level identification using the group identifier for interference coordination, and device-level identification using individual device identifiers for specific device management. This segmentation allows efficient group-wide interference control without requiring every device to be individually identified in all signaling exchanges.

Inventive Principle:

Principle #1Segmentation

3Area of stationary object

If home base stations and relays are deployed to extend coverage, then network coverage area increases, but interference coordination becomes more difficult due to varying spectral efficiency

Engineering Contradiction:

Improvenetwork coverage areaVSAvoidinterference coordination

Core Design Contradiction:

Area of stationary objectVSAdaptability or versatility

Solution Approach 1:

The group identifier provides a universal identification mechanism that works across all types of wireless telecommunication devices including traditional base stations, home base stations, and relays. This universal approach enables interference coordination to adapt to varying spectral efficiency and coverage characteristics of different device types without requiring device-specific coordination mechanisms.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

By merging heterogeneous devices with different coverage areas and spectral efficiency characteristics into a single group, the patent enables unified interference coordination that automatically adapts to the collective characteristics of the group. This approach maintains versatility in handling diverse device types while simplifying the coordination process through single-group management.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS8996048B2Controlling the interferences generated by radio signals

Publication Date: 2015.03.31 MITSUBISHI ELECTRIC CORP

AI summary

The present invention concerns a method for controlling the interferences generated by radio signals transferred by or to wireless telecommunication devices of a wireless cellular telecommunication network. The method comprises the steps of:forming at least one group of wireless telecommunication devices,allocating at least one identifier to each wireless telecommunication device of the group, the at least one identifier, said as group identifier, being allocated to each wireless telecommunication device of the group of wireless telecommunication devices, the group identifier being intended to be transferred by each wireless telecommunication device to mobile terminals in parallel with another identifier,allocating the same parameters for controlling the interferences generated by radio signals transferred to or by each wireless telecommunication device of the group.