Redcap Terminal Random Access Reporting for IoT Resource Efficiency
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Solution Overview
Problem
Current Machine Type Communication (MTC) and Narrow Band Internet of Things (NB-IoT) technologies fail to meet the increasing rate and latency requirements of IoT services, leading to resource wastage and fragmentation in reporting terminal capabilities, especially for Reduced Capability (Redcap) terminals.
Innovation Solution
A method for Redcap terminals to report information using both Msg.1 and Msg.3 random access messages, allowing the network to configure resources based on terminal capability and channel state, reducing resource wastage by selecting appropriate transmission resources according to predefined rules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If MTC and NB-IoT technologies are used for IoT services, then low-rate and high-latency scenarios are supported, but the rate and latency requirements of current IoT services cannot be satisfied
Solution Approach 1:
The patent introduces a new terminal type called Redcap terminal with modified parameters compared to traditional MTC and NB-IoT terminals. This new terminal supports higher data rates and lower latency by changing key parameters such as bandwidth capability, processing capability, and antenna configurations, thereby meeting the evolving IoT service requirements without fully adopting complex 5G NR terminal structures
2Reliability
If terminal capability information is reported using traditional methods, then network devices can identify terminal types, but resource wastage and fragmentation occur
Solution Approach 1:
The patent implements preliminary action by having terminals report their capability information during the random access process before actual data transmission begins. The terminal includes capability information in the RAR message (Msg2) or MSG3, allowing the network device to pre-allocate appropriate resources based on the reported capabilities, thereby avoiding resource wastage and fragmentation that would occur with traditional post-negotiation methods
3Productivity
If Redcap terminals report terminal information, then network resource allocation can be optimized, but additional signaling overhead is introduced
Solution Approach 1:
The patent merges the terminal capability reporting function with the existing random access procedure. Instead of introducing a separate signaling mechanism, the terminal capability information is combined into the existing RAR message (Msg2) or MSG3 of the random access protocol. This merging approach allows optimization of network resource allocation while minimizing additional signaling overhead by reusing established message structures
Data Source
AI summary
In a method for sending information, a terminal determines a first random access message from a plurality of random access messages supported by the terminal and sends terminal information based on the first random access message. In a method for receiving information, a network device, determines a first random access message from a plurality of random access messages supported by the network device; and receives terminal information based on the first random access message. The terminal information includes at least one of terminal capability information or channel state information of the terminal.