Time-Varying Cell Identifier Control for Remote Stations

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Solution Overview

Problem

Wireless communication systems face challenges in effectively managing remote transmitting stations located on cell edges in heterogeneous networks, leading to suboptimal signal quality and interference for user equipment at the edge of cells.

Innovation Solution

A method is introduced where time resource information is transmitted between transmission points to control remote transmitting stations, allowing their cell identifiers to change based on time intervals, enabling cooperative transmission and improved signal management, including the sharing of antenna ports and channel state reporting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If remote transmitting stations use fixed cell identifiers, then network configuration is simple, but signal quality for user equipment at cell edges deteriorates due to interference

Engineering Contradiction:
Improvenetwork configuration complexityVSAvoidsignal quality
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent applies dynamics by making cell identifiers time-varying rather than fixed. Remote transmitting stations change their cell identifiers based on time resource information, allowing the system to adapt to changing interference conditions while maintaining manageable configuration complexity through automated management.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent implements periodic action through time-based cell identifier changes. Cell identifiers are changed periodically according to time resource information, creating a structured pattern that improves signal quality at cell edges while maintaining system organization through predictable intervals.

Inventive Principle:
Principle #19Periodic action

2Reliability

If cell identifiers are changed frequently to reduce interference, then signal quality improves, but system complexity increases due to time resource management

Engineering Contradiction:
Improvesignal qualityVSAvoidtime resource management complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent uses feedback mechanisms where transmission points exchange time resource information about remote transmitting stations. This feedback loop allows the system to coordinate cell identifier changes and manage time resources efficiently, reducing the complexity burden while maintaining signal quality improvements.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent introduces time resource information as an intermediary element that mediates between cell identifier changes and interference reduction. This intermediary structure simplifies the management complexity by providing a standardized interface for coordinating changes across multiple transmission points.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Area of stationary object

If remote transmitting stations transmit continuously, then network coverage is improved, but interference for user equipment increases

Engineering Contradiction:
Improvenetwork coverageVSAvoidinterference
Core Design Contradiction:
Area of stationary objectVSObject-generated harmful factors

Solution Approach 1:

The patent applies periodic action by implementing time-based transmission patterns for remote transmitting stations. Stations transmit during allocated time intervals and remain silent during other periods, expanding effective coverage while reducing continuous interference through structured transmission timing.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The patent uses dynamics to make transmission behavior adaptive rather than static. Remote transmitting stations dynamically adjust their transmission activity based on time resource information and cell identifier changes, allowing the system to expand coverage in some time periods while reducing interference in others.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS9729300B2Method and apparatus for controlling remote transmitting station in wireless communication system
Publication Date: 2017.08.08 LG ELECTRONICS INC
  • US9729300B2 patent drawing
  • US9729300B2 patent drawing
  • US9729300B2 patent drawing

AI summary

The present invention relates to a method for controlling a remote transmitting station in a wireless communication system, including a step of: a first transmission point transmitting to a second transmission point time resource information related to at least one or more remote transmitting stations among a plurality of remote transmitting stations, wherein the plurality of transmitting stations located at cell edges of the first transmission point and cell identifiers of the at least one or more remote transmitting stations are changed according to a time period instructed by the time resource information.