NB-IoT Uplink Resource Configuration for TBS Accuracy
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Solution Overview
Problem
Current resource configuration methods for Narrow Band Internet of Things (NB-IoT) face inefficiencies in uplink transmission and power consumption, particularly in the use of preconfigured uplink resources (PURs) which lack flexible and accurate Transport Block Size (TBS) allocation.
Innovation Solution
The proposed method involves determining when a Preconfigured Uplink Resource (PUR) needs adjustment based on data transmission, reallocating resources based on a first Transport Block Size (TBS), and transmitting reconfiguration information to the terminal device to optimize resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If preconfigured uplink resources (PUR) are used for uplink transmission, then UE power consumption is reduced and access procedure is simplified, but resource allocation flexibility and TBS accuracy deteriorate
Solution Approach 1:
The patent implements dynamic PUR resource allocation by allowing the network device to adjust PUR configurations based on actual channel conditions and traffic requirements. The network device determines appropriate TBS values and resource allocations dynamically, transitioning from static preconfiguration to adaptive resource management while maintaining the power-saving benefits of PUR.
Solution Approach 2:
The patent introduces feedback mechanisms where the network device monitors uplink transmission performance and channel conditions, then adjusts PUR configurations accordingly. The network device determines whether PUR adjustment is needed based on received data and sends reconfiguration signals to the terminal device, creating a closed-loop system that balances power saving with resource allocation accuracy.
2Device complexity
If fixed TBS allocation is used in PUR configuration, then configuration complexity is reduced, but resource utilization efficiency deteriorates
Solution Approach 1:
The patent enables dynamic parameter adjustment of PUR configurations, specifically allowing the network device to modify TBS values based on actual transmission needs. The network device determines appropriate TBS from standardized tables based on resource allocation and channel conditions, optimizing resource utilization without significantly increasing terminal device complexity.
3Productivity
If PUR adjustment is implemented dynamically, then resource utilization efficiency is improved, but signaling overhead and system complexity increase
Solution Approach 1:
The patent employs preliminary configuration where the network device pre-determines PUR parameters including TBS values based on standardized tables before actual transmission. This preliminary setup reduces real-time computational complexity while enabling dynamic adaptation when adjustments are needed, balancing efficiency gains with system complexity management.
Data Source
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AI summary
Embodiments of the present disclosure relate to the resource configuration for Narrow Band Intemet of Thing (NB-loT). A method of resource configuration for NB-IoT comprises determining, at a network device, whether a configured Uplink Resource (PUR) for transmission from a terminal device to the network device is to be adjusted; in response to determining that the PUR is to be adjusted, determining a set of resources to be allocated for further transmission from the terminal device to the network device based on a Transport Block Size (TBS) associated with the further transmission; generating reconfiguration information of the PUR based on the set of the resources; and transmitting the reconfiguration information to the terminal device. In this way, the resource configuration may be determined and adjusted more efficiently and flexibility compared to the conventional way.