eNB Transmission Notification Monitoring for MC-MTC Resource Allocation
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Solution Overview
Problem
Current cellular networks face inefficiencies in supporting devices with varying operational characteristics, particularly Machine Type Communication (MTC) devices, which require reliable and fast network access, especially for Mission-Critical MTC applications where low latency is crucial.
Innovation Solution
The implementation of a method where Evolved Node-Bs (eNBs) monitor transmission notification signals from MC-MTC UEs during a designated period, allocate dedicated traffic resources based on the presence or absence of these signals, and reallocate resources to other UEs when MC-MTC UEs do not have data to transmit, ensuring fast and reliable access for mission-critical data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dedicated traffic resources are allocated to MC-MTC UEs, then network access reliability and speed are improved, but resource utilization efficiency deteriorates when MC-MTC UEs are idle
Solution Approach 1:
The patent implements dynamic resource allocation where the eNB monitors transmission notification signals from MC-MTC UEs and adjusts resource allocation in real-time. When MC-MTC UEs have data to transmit, dedicated resources are allocated; when idle, resources are reallocated to other UEs. This dynamic adjustment resolves the contradiction by maintaining reliability when needed while improving overall resource utilization efficiency during idle periods.
Solution Approach 2:
The patent changes the allocation parameter from static dedicated resources to conditional dedicated resources based on transmission notification signals. The eNB monitors the presence or absence of TN signals and adjusts resource allocation accordingly. This parameter change allows the system to maintain high reliability for MC-MTC UEs when they need service while optimizing resource utilization when they are idle.
2Measurement precision
If transmission notification monitoring is implemented, then resource allocation accuracy is improved, but system complexity increases
Solution Approach 1:
The patent extracts the resource allocation decision-making process from the complex eNB control logic by introducing a dedicated transmission notification monitoring mechanism. The eNB separately monitors TN signals from MC-MTC UEs and uses this information to drive resource allocation decisions. This extraction simplifies the overall system complexity by separating the monitoring function from the allocation function, making the system more manageable while improving allocation accuracy.
3Reliability
If fast network access is guaranteed for MC-MTC UEs, then mission-critical communication reliability is improved, but network latency for other UEs increases
Solution Approach 1:
The patent implements periodic monitoring of transmission notification signals from MC-MTC UEs during designated monitoring periods. The eNB allocates dedicated resources periodically based on whether TN signals are detected. This periodic action ensures that MC-MTC UEs receive fast network access when needed while allowing other UEs to utilize resources during periods when MC-MTC UEs are idle, thus balancing reliability with latency for all users.
Data Source
AI summary
Embodiments of an Evolved Node-B (eNB) to support Mission-Critical Machine Type Communication (MC-MTC) User Equipments (UEs) are disclosed herein. During a transmission notification (TN) monitoring period, the eNB may monitor for TN signals from MC-MTC UEs. When a presence of TN signals is detected, the eNB may refrain from allocation of dedicated MC-MTC traffic resources to other UEs for transmission during a traffic period. In response to a detection of an absence of TN signals from the first group of MC-MTC UEs during the TN monitoring period, the eNB may allocate the dedicated MC-MTC traffic resources to the other UEs for transmission during the traffic period. Starting times of the traffic period and the TN monitoring period may be spaced apart by a predetermined time difference. In some embodiments, the predetermined time difference for MC-MTC UEs may be not greater than 10 milliseconds.