Base Station Control Channel Frequency Bandwidth Allocation

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Solution Overview

Problem

Current communication systems face challenges in simultaneously providing different types of services, such as eMBB, URLLC, and mMTC, due to overlapping frequency-time resources, which can lead to transmission failures and increased latency.

Innovation Solution

The proposed solution involves a method where a base station transmits control information and data for multiple services using distinct frequency bandwidths, allowing for adaptive support of existing services by identifying specific service types and efficiently decoding control information, thereby reducing resource conflicts and latency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multiple services share overlapping frequency-time resources, then resource utilization efficiency is improved, but transmission reliability deteriorates due to resource conflicts and interference

Engineering Contradiction:
Improveresource utilization efficiencyVSAvoidtransmission reliability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent segments frequency-time resources into distinct service-specific resources. Different services (e.g., eMBB, URLLC, mMTC) are assigned separate frequency bands and time slots to avoid overlap and interference. This segmentation ensures that each service has dedicated resources, eliminating resource conflicts while maintaining high overall utilization through efficient resource management and dynamic allocation mechanisms.

Inventive Principle:
Principle #1Segmentation

2Reliability

If distinct frequency bandwidths are allocated for each service, then transmission reliability is improved by avoiding resource conflicts, but resource utilization efficiency deteriorates due to potential idle resources

Engineering Contradiction:
Improvetransmission reliabilityVSAvoidresource utilization efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent implements dynamic resource allocation where frequency bandwidths and time slots can be flexibly adjusted based on real-time service demands. When a service has low traffic demand, its allocated resources can be dynamically reassigned to services with higher demand, ensuring high utilization efficiency. This dynamic approach maintains distinct resource allocation for reliability while enabling efficient resource sharing through time-varying configurations.

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If control information for multiple services is transmitted separately, then service differentiation is improved for adaptive support, but system complexity increases due to multiple control channels

Engineering Contradiction:
Improveservice differentiation capabilityVSAvoidcontrol channel complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent employs a universal control channel structure that can carry control information for multiple services simultaneously. Instead of creating separate dedicated control channels for each service, the system uses a multi-functional control channel that includes service-specific indicators and parameters within a unified framework. This approach enables fine-grained service differentiation and adaptive support while avoiding the complexity of multiple independent control channels through a consolidated, flexible control mechanism.

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

Data Source

PatentUS11785607B2Method and apparatus for transmitting control information in wireless cellular communication system
Publication Date: 2023.10.10 SAMSUNG ELECTRONICS CO LTD
  • US11785607B2 patent drawing
  • US11785607B2 patent drawing
  • US11785607B2 patent drawing

AI summary

The present invention relates to a communication technique for convergence of an IoT technology and a 5G communication system for supporting a higher data transmission rate beyond a 4G system, and a system therefor. The present disclosure can be applied to an intelligent service (for example, a smart home, a smart building, a smart city, a smart car or connected car, health care, digital education, retail business, security and safety-related service, etc.) on the basis of a 5G communication technology and an IoT-related technology. A method for communicating by a base station according to the present invention comprises transmitting control information relating to at least two services to a terminal; and transmitting data relating to the at least two services to the terminal, wherein at least one of a control region for transmitting the control information and a data region for transmitting the data may include at least two frequency bandwidths corresponding to each of the at least two services.