Wake-Up Signal Configuration for NB-IoT Paging Optimization
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Solution Overview
Problem
Current narrowband internet of things (NB-IoT) and machine type communication (MTC) networks face challenges in reducing power consumption and improving network resource utilization, particularly in scenarios requiring a wake-up signal feature to manage terminal device paging efficiently.
Innovation Solution
The implementation of a wake-up signal configuration method that indicates whether to page a terminal device within a specific time period, using configuration information to determine the time interval between adjacent wake-up signals, allowing the terminal to reduce power consumption and network resource usage by listening only to the wake-up signal when not paged.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal device continuously listens to paging messages to ensure it does not miss any paging, then the reliability of paging reception is improved, but the power consumption of the terminal device increases significantly
Solution Approach 1:
The paging reception process is segmented into two distinct stages: first, the terminal listens to the wake-up signal which indicates whether paging will occur; second, based on the wake-up signal result, the terminal either listens to the paging message or enters sleep mode. This segmentation allows the terminal to avoid continuous paging message listening while ensuring reliable paging reception when needed.
Solution Approach 2:
The wake-up signal is sent before the paging message to preliminarily indicate whether paging will occur. The terminal device uses this preliminary information to decide whether to wake up and listen to the paging message or remain in sleep mode, thereby avoiding unnecessary power consumption while ensuring reliable paging reception.
2Loss of information
If the terminal device listens to both wake-up signal and paging messages, then the completeness of information reception is improved, but the network resource utilization decreases due to increased listening overhead
Solution Approach 1:
The terminal device performs partial listening action based on the wake-up signal result. When the wake-up signal indicates no paging, the terminal only listens to the wake-up signal and skips paging message listening, performing less than full listening action. This reduces listening overhead and improves network resource utilization while the wake-up signal ensures information completeness is maintained.
3Loss of time
If the network device sends paging messages frequently to ensure terminals receive updates, then the timeliness of information delivery is improved, but the network resource consumption increases
Solution Approach 1:
The wake-up signal is sent periodically according to a configured time interval, and paging messages are sent only when needed based on the wake-up signal indication. This periodic wake-up signal mechanism ensures timely information delivery when paging is required while avoiding unnecessary network resource consumption by not sending paging messages when not needed.
Data Source
AI summary
Embodiments of this application provide an information processing method and an apparatus. The information processing method includes: determining, by a network device, an early-data-transmission terminal type supported by the network device, wherein the early-data-transmission terminal type comprises at least a terminal device using a user plane (UP) or a control plane (CP) optimization mode in performing early data transmission; and sending, by the network device to the terminal device, information about the early-data-transmission terminal type supported by the network device.