Terminal Device System Information Reception via Repeated Transmissions
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Solution Overview
Problem
In scenarios like narrowband communication, machine type communication, IoT communication, or lightweight new radio communication, terminal devices often face challenges in correctly receiving system information due to remote and complex distribution environments, leading to a low probability of successful information reception.
Innovation Solution
A communication method where a terminal device receives first information transmitted multiple times and determines second information or transmission information based on the received first information, ensuring accurate reception of system information by adjusting the quantity of repeated transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If system information is transmitted only once, then transmission efficiency is high, but the probability of correct reception by terminal devices is low
Solution Approach 1:
The patent applies periodic action by transmitting system information multiple times at different occasions. The network device sends the same system information through multiple transmissions, allowing terminal devices to receive it at least once successfully. This periodic repetition directly addresses the low probability of correct reception in remote and complex distribution environments while maintaining reasonable transmission efficiency.
2Reliability
If system information is transmitted multiple times, then the probability of correct reception is improved, but transmission overhead increases
Solution Approach 1:
The patent merges multiple transmission opportunities into a unified system information transmission scheme. By transmitting system information multiple times through different channels or at different occasions, the network ensures that terminal devices in various environments can receive the information without significant additional overhead. The merging approach consolidates the transmission strategy to achieve reliability improvement while controlling overhead.
3Reliability
If the terminal device monitors all transmission occasions, then information reception reliability is maximized, but device power consumption increases
Solution Approach 1:
The patent applies partial action by allowing terminal devices to monitor transmission occasions selectively rather than all occasions. Terminal devices can determine to receive system information based on their specific needs and environmental conditions, monitoring only the necessary transmission occasions. This partial monitoring approach maintains information reception reliability while significantly reducing device power consumption compared to continuous monitoring of all transmissions.
Data Source
AI summary
Embodiments of this application provide example communication methods and apparatuses. One example method includes receiving, by a terminal device, N pieces of first information in N separate transmissions, where N is an integer greater than 1. The terminal device can then determine second information or transmission information of the second information based on at least a part of the N pieces of first information, where each of the N pieces of first information includes M bits, and M is an integer greater than or equal to 1.