Wireless Control Channel Reception Using Multiple Numerologies
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing 5G wireless communication systems face challenges in resource allocation and control channel transmission due to the use of multiple numerologies, which vary in subcarrier spacing and symbol duration, leading to inefficiencies in data transmission and reception.
Innovation Solution
The solution involves configuring user equipment (UE) to use a first numerology for control channels and a second numerology for data channels, with the UE receiving control channels using the first numerology and data channels using the second numerology, and employing methods to signal bandwidth partitions and numerologies through physical broadcast channels, system information blocks, and radio resource control messages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple numerologies are used in 5G wireless communication systems, then data rates and latency are improved, but resource allocation complexity and control channel transmission efficiency deteriorate
Solution Approach 1:
The patent segments the communication system by assigning different numerologies to different channels: control channels use a first numerology while data channels use a second numerology. This segmentation allows each channel type to operate with optimized parameters independently, resolving the contradiction between achieving high data rates through multiple numerologies and maintaining simple resource allocation by having dedicated numerology assignments.
2Loss of time
If multiple numerologies are used for data channels, then latency is reduced, but control channel transmission efficiency deteriorates
Solution Approach 1:
The patent applies local quality by assigning specific numerology characteristics to specific channels based on their requirements. Control channels use a first numerology optimized for reliable control signal transmission, while data channels use a second numerology optimized for high-speed data transfer and low latency. This localized optimization resolves the contradiction between achieving low latency through multiple numerologies and maintaining control channel transmission efficiency.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Method and apparatus for receiving a control channel to a user equipment (UE) in a wireless communication system are disclosed herein. The UE is configured to use a first numerology for receiving a control channel (304). Also, the UE receives information regarding using a second numerology for receiving a first data channel (306). The UE receives the control channel by using the first numerology and receives the first data channel by using the second numerology (308;310).