Broadcast Channel Segmentation for e-UTRA Parameter Transmission

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Solution Overview

Problem

Existing wireless communication systems face inefficiencies in transmitting system parameter data due to the use of a single delivery mechanism for all types of parameter data, leading to suboptimal data rate transmission.

Innovation Solution

The system splits the broadcast channel into primary and secondary portions, with primary broadcast parameters transmitted at a lower bandwidth than secondary broadcast parameters, allowing for optimized data rate transmission based on the type of parameter data, utilizing a non-Single Frequency Network (SFN) mode for cell-specific parameters.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If all system parameter data is transmitted using the same delivery mechanism, then the transmission process is simple, but the data rate transmission is inefficient

Engineering Contradiction:
Improvedata rate transmissionVSAvoiddelivery mechanism complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent segments system parameter data into two distinct categories: cell-specific parameters and system-specific parameters. Each category is transmitted through a separate broadcast channel (primary BCH and secondary BCH respectively), allowing optimized transmission strategies for each type while maintaining overall system efficiency

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent applies different transmission qualities and bandwidth allocations to different parameter types. Cell-specific parameters are transmitted with higher priority and bandwidth on the primary channel, while system-specific parameters use a secondary channel, ensuring each parameter type receives appropriate transmission resources based on its specific requirements

Inventive Principle:
Principle #3Local quality

2Productivity

If a single broadcast channel is used for all parameter data, then the channel structure is simple, but the transmission optimization is limited

Engineering Contradiction:
Improvetransmission efficiencyVSAvoidchannel structure complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The single broadcast channel is segmented into two separate channels: primary BCH for cell-specific parameters and secondary BCH for system-specific parameters. This segmentation enables independent optimization of each channel's transmission parameters, improving overall transmission efficiency while maintaining manageable structural complexity

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces dynamic bandwidth allocation and transmission parameter adjustment for each broadcast channel based on the specific requirements of the parameter data being transmitted, allowing the system to adapt transmission characteristics to match data priorities and characteristics

Inventive Principle:
Principle #15Dynamics

3Productivity

If primary broadcast parameters are transmitted at lower bandwidth, then resource allocation is optimized, but transmission capacity for critical data may be reduced

Engineering Contradiction:
Improveresource allocation efficiencyVSAvoiddata transmission reliability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent ensures that primary broadcast parameters (cell-specific) receive higher bandwidth allocation and priority transmission resources compared to secondary parameters, matching the critical nature of cell-specific data for initial acquisition and continuous operation while optimizing overall resource distribution

Inventive Principle:
Principle #3Local quality

Data Source

PatentEP2020128B1A broadcast channel for e-utra
Publication Date: 2015.11.11 QUALCOMM INC
  • EP2020128B1 patent drawingFigure 1~2
  • EP2020128B1 patent drawingFigure 3
  • EP2020128B1 patent drawingFigure 4

AI summary

Systems and methodologies are described that facilitate optimal transmission of system parameter data in a wireless communication system. According to various aspects, a broadcast channel is split into at least two portions, wherein one portion allows for transmission of static system parameter data at a first data rate, and a second portion allows for transmission of semi-static and dynamic parameter data at a second disparate data rate.