System Information Acquisition in Multi-Radio Access Technology Systems
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Solution Overview
Problem
In multi-radio access technology systems, mobile stations must process and receive a full set of system information messages from all supported radio access technologies, leading to inefficiencies and unnecessary information processing, especially when not all messages are relevant to the mobile station's capabilities.
Innovation Solution
The system information messages are structured with start and stop fields to indicate whether a message instance is the first, last, or only instance for a particular radio access technology, allowing mobile stations to efficiently identify and process only the necessary information, thereby reducing unnecessary data reception and processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mobile stations receive and process all system information messages from all supported radio access technologies, then complete information coverage is achieved, but processing time and power consumption increase
Solution Approach 1:
The patent segments system information messages by introducing start and stop indicators that divide the continuous stream of SI messages into distinct, identifiable instances for different RATs. This allows the mobile station to process only the relevant segments corresponding to its supported RATs, rather than processing all SI messages from all RATs, thereby reducing power consumption while maintaining information completeness for supported technologies.
Solution Approach 2:
The patent extracts and identifies only the necessary system information messages that are relevant to the mobile station's capabilities by using start and stop indicators to delimit message instances. The mobile station extracts and processes only the SI messages corresponding to RATs it supports, excluding irrelevant messages from other RATs, thus reducing processing overhead and power consumption while maintaining reliability.
2Reliability
If mobile stations receive all system information message instances, then consistent set requirement is met, but processing time increases
Solution Approach 1:
The patent implements preliminary action by placing start indicators at the beginning of system information message instances for each RAT. This allows the mobile station to proactively identify when a new SI message instance for a supported RAT begins, enabling it to selectively acquire and process only the necessary messages to form a consistent set for its supported RATs, thereby reducing processing time while ensuring reliable consistent set completion.
Solution Approach 2:
The patent uses feedback mechanisms through stop indicators that signal the end of system information message instances. The mobile station monitors these stop indicators to determine when it has received the complete set of SI messages for a particular RAT, providing feedback control that allows it to stop processing for that RAT once the consistent set is obtained, thus optimizing processing time while maintaining reliability.
3Adaptability or versatility
If system information messages are transmitted for all radio access technologies, then all mobile stations can be served, but data transmission volume increases
Solution Approach 1:
The patent applies local quality by making system information message transmission RAT-specific and mobile station-specific. Through start and stop indicators, the network can transmit SI messages for different RATs with different characteristics and lengths, allowing each message instance to be optimized for its specific RAT and the capabilities of receiving mobile stations, thereby reducing overall data volume while maintaining adaptability to serve multiple RAT types.
Solution Approach 2:
The patent implements partial action by transmitting only the necessary portion of system information messages that are relevant to mobile stations with specific RAT capabilities. Using start and stop indicators, the network transmits SI messages selectively - providing complete information for supported RATs while omitting or minimizing transmission for unsupported RATs, thus reducing data volume while maintaining full adaptability for supported technologies.
Data Source
AI summary
According to the exemplary embodiments of the invention, there is a method, apparatus and computer program for composing at least one system information message instance for a first particular radio access technology system, and for transmitting the at least one message instance to at least one network node. In addition, the exemplary embodiments of the invention provide for receiving, decoding, and processing the received at least one message instance. Further, according to the exemplary embodiments each one of the at least one message instance includes a start field to indicate whether the message instance is a first instance of the at least one message instance, and a stop field to indicate whether the message instance is a last instance of the at least one message instance.