5G UE Random Access Resource Segmentation for Interference Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing communication systems face challenges in efficiently determining transmission resources and transmitting uplink and downlink signals, particularly in 5G communication systems aimed at supporting increased data traffic and IoT applications.
Innovation Solution
The proposed solution involves a method for determining transmission resources and a method for transmitting uplink and downlink signals, which includes configuring different types of cell-common UL/DL information to indicate valid transmission occasions for random access, allowing for efficient allocation of resources and reduction of interference between uplink and downlink signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If frequency-domain resources are used for both uplink and downlink transmissions, then resource utilization efficiency is improved, but interference between uplink and downlink signals increases
Solution Approach 1:
The frequency-domain resources are segmented into different types (first-type resources for uplink, second-type resources for downlink, third-type resources for both). This segmentation allows the system to allocate resources more precisely, enabling simultaneous uplink and downlink transmissions on third-type resources while maintaining dedicated resources for each direction, thus improving overall resource utilization while managing interference through structured resource separation.
Solution Approach 2:
Different quality attributes are assigned to different frequency-domain resources based on their intended use. First-type resources are optimized for uplink transmission, second-type for downlink, and third-type for bidirectional communication. This local differentiation of resource qualities enables the system to maximize resource utilization efficiency while controlling interference by ensuring that resources are appropriately characterized for their specific transmission purposes.
2Productivity
If transmission resources are allocated without distinction between uplink and downlink, then resource allocation efficiency is improved, but transmission reliability deteriorates due to increased interference
Solution Approach 1:
The system dynamically determines whether to allocate first-type, second-type, or third-type resources based on real-time transmission conditions, traffic requirements, and interference levels. This dynamic resource allocation allows the system to achieve high resource allocation efficiency by flexibly assigning resources while maintaining transmission reliability through adaptive selection of resource types that are appropriate for the current transmission scenario.
Solution Approach 2:
The system changes the parameters of frequency-domain resources by categorizing them into different types with distinct characteristics. By adjusting the resource type parameters based on transmission needs, the system can efficiently allocate resources while ensuring reliability - using third-type resources for bidirectional transmission when conditions permit, and falling back to dedicated uplink or downlink resources when interference concerns arise.
Data Source
Figure 1
Figure 2a
Figure 2b
AI summary
The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present application discloses a transmission method and device. According to an aspect of the present application, there is provided a transmission method performed by a user equipment (UE). The method includes: receiving resource configuration information from a base station; determining valid transmission occasions from transmission occasions based on the resource configuration information; performing random access at the valid transmission occasions, wherein the resource configuration information received from the base station contains time-domain and frequency-domain uplink and downlink transmission resource information.