Terminal Device Base Station Identification Using Type 1 and Type 2 Signals
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Solution Overview
Problem
Current wireless communication systems face increased power consumption and reduced battery life in terminal devices due to the need for periodic searches to identify base station devices, which also lead to congestion and inefficiencies in frequency usage.
Innovation Solution
A terminal device transmits a signal with type 1 identification information to an unspecified base station, receives and extracts type 2 identification information from the base station, and measures the time until switching back to type 1 identification information when the threshold is exceeded, eliminating the need for continuous scanning and reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal device performs periodic searches to identify base station devices, then the base station identification is maintained, but power consumption increases and battery life decreases
Solution Approach 1:
The patent implements periodic action by having the terminal device perform base station identification only when necessary (when switching between base stations) rather than continuously or at fixed intervals. The device uses type 1 identification information for initial connection and type 2 identification information for subsequent communications, eliminating the need for continuous periodic searches while maintaining reliable base station identification.
2Reliability
If the terminal device performs periodic searches to identify base station devices, then the base station identification is maintained, but battery life decreases
Solution Approach 1:
The patent applies periodic action by transitioning from continuous or fixed-interval periodic searches to event-driven periodic identification. The terminal device performs base station identification only when switching between base stations, using type 1 identification information for initial connection and type 2 identification information for subsequent communications. This reduces the frequency of identification operations while maintaining reliable base station identification, thereby extending battery life.
3Ease of operation
If the terminal device uses type 1 identification information for unspecified base station, then the connection process is simplified, but frequency congestion may occur
Solution Approach 1:
The patent applies segmentation by dividing the identification information into two distinct types: type 1 identification information for initial connection to an unspecified base station, and type 2 identification information for subsequent targeted communications. This segmentation allows the connection process to be simplified in the initial stage while preventing frequency congestion during active communication by using specific base station identification.
Solution Approach 2:
The patent implements preliminary action by having the terminal device transmit type 1 identification information for initial connection establishment before actual data communication begins. This preliminary connection phase allows the device to quickly establish a link without congestion concerns, and then transition to type 2 identification information for the actual communication phase, thereby preventing frequency congestion.
Data Source
AI summary
A transmitter transmits a signal including type 1 identification information. A receiver receives a signal from the base station device. An extractor extracts, from the received signal, type 2 identification information, and a measurer measures a period of time after the extractor extracts the type 2 identification information. When the type 2 identification information is extracted by the extractor, the transmitter transmits a signal including the type 2 identification information. When the period of time measured by the measurer exceeds a threshold value, the transmitter transmits a signal including the type 1 identification information.