eMTC Bandwidth Allocation for Higher Data Rates
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Solution Overview
Problem
Current wireless communication technologies, such as LTE and emerging 5G networks, face limitations in providing higher bandwidths and data rates for enhanced machine type communications (eMTC), which are essential for supporting increased mobile broadband demand and diverse IoT applications, particularly in scenarios where half-duplex operation restricts simultaneous uplink and downlink transmissions.
Innovation Solution
The solution involves allocating and monitoring larger bandwidths, specifically up to 24 resource blocks, within configured narrowband regions, allowing for enhanced throughput by determining and allocating frequency resources for transmission, and implementing frequency hopping patterns to optimize resource utilization, thereby supporting higher data rates for eMTC devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If eMTC devices operate in narrowband regions (1.08 MHz bandwidth), then device complexity and power consumption are reduced, but data transmission rate and throughput are limited
Solution Approach 1:
The system bandwidth is divided into multiple narrowband regions, each 1.08 MHz wide. The UE is configured to monitor only specific narrowband regions where its data transmissions are allocated, rather than monitoring the entire system bandwidth. This segmentation allows eMTC devices to operate with reduced complexity while the network can allocate resources across larger bandwidths to achieve higher throughput.
2Productivity
If eMTC devices monitor larger bandwidths, then data transmission rate and throughput increase, but device complexity and processing requirements increase
Solution Approach 1:
Different parts of the system bandwidth are assigned different functions. Specifically, certain narrowband regions are designated for eMTC device monitoring while other regions can be used for other purposes. The UE monitors only the locally relevant narrowband regions configured by the network, enabling throughput enhancement without requiring the device to process the entire system bandwidth.
3Productivity
If frequency resources are allocated across multiple narrowband regions, then resource utilization efficiency increases, but scheduling complexity increases
Solution Approach 1:
The network performs preliminary configuration by assigning each UE to specific narrowband regions before data transmission begins. This pre-configuration allows the UE to know in advance which frequency resources to monitor, simplifying the device operation while enabling the network to efficiently allocate resources across multiple narrowband regions for enhanced throughput.
Data Source
AI summary
Certain aspects of the present disclosure provide techniques for higher bandwidth and data rate for enhanced machine type communications (eMTC). According to certain aspects, a method of wireless communication by a user equipment (UE) is provided. The method generally includes determining frequency resources within one or more configured narrowband regions of a system bandwidth to monitor for a transmission and monitoring for the transmission on the determined frequency resources within the one or more narrowband regions of the system bandwidth.