Wireless Relay Device Control via Identification Information
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Solution Overview
Problem
The existing wireless relay devices lack a method to identify the communication destination when receiving control information indicating their behavior, leading to inefficiencies in communication management.
Innovation Solution
A wireless relay device is designed with a communication unit for relaying downlink and uplink wireless signals, a reception unit for receiving signals with control information and identification information, and a control unit that decodes the signal based on the identification information to perform appropriate control actions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a wireless relay device receives control information without identification information, then the device can perform basic signal relaying, but the communication destination cannot be identified leading to communication management inefficiency
Solution Approach 1:
The patent segments the control information into two distinct parts: identification information (such as RNTI - Radio Network Temporary Identifier) and control information proper. This segmentation allows the wireless relay device to first identify the communication destination using the identification information, and then process the appropriate control information, thereby resolving the ambiguity in communication management without losing essential identification data
Solution Approach 2:
The identification information acts as an intermediary element between the control information and the wireless relay device. This intermediary enables the device to determine which control information is intended for it before processing, improving communication management efficiency by preventing misinterpretation of control signals from base stations
2Loss of information
If the wireless relay device processes all downlink signals, then no signal is lost, but the device complexity increases due to inability to filter targeted control information
Solution Approach 1:
The patent applies preliminary action by having the wireless relay device first decode and process the identification information (such as RNTI) before processing the main control information. This preliminary identification step allows the device to determine in advance whether a particular downlink signal is intended for it, enabling selective processing that reduces overall processing complexity while ensuring no relevant control information is lost
Solution Approach 2:
The device performs partial processing of downlink signals by focusing computational resources only on signals containing identification information that matches its own identifier. Rather than fully processing all downlink control information, the device selectively processes only those signals relevant to it, reducing complexity while maintaining complete processing of necessary control information
Data Source
AI summary
A wireless relay device includes: a communication unit configured to relay a downlink wireless signal and an uplink wireless signal: a reception unit configured to receive a signal including control information and identification information for identifying a transmission destination of a signal including the control information in downlink; and a control unit configured to decode the signal including the control information, based on the identification information and perform a control based on the control information.