Repeater Device Encoding Physical Properties for Wireless Communication
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Solution Overview
Problem
Conventional repeater devices in wireless communication systems lose critical information related to physical properties of messages, such as receiving time, power, and frequency, during retransmission, which is essential for position determination, and adding additional data to address this issue increases computational complexity and message duration, particularly in M2M and IoT applications.
Innovation Solution
The repeater device measures a first physical property of the received message and determines a second physical property to be used for retransmission, which is different from the first, allowing the encoding of the first property's value within the second property without adding extra data, thus preserving the information without increasing message duration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If additional data representative of physical property values is added to received messages for preservation during retransmission, then information loss is prevented, but computational complexity increases significantly and message duration increases
Solution Approach 1:
The patent changes the physical parameters of the message itself (frequency, power, or time) to encode the physical property information. Instead of adding data fields, the repeater modifies the message's frequency to represent received time, power to represent received power, or time to represent received frequency, thereby preserving information while avoiding increased computational complexity and message duration
Solution Approach 2:
The patent uses alternative dimensions of the message signal (frequency dimension, power dimension, or time dimension) to encode the physical property information. By mapping the physical property values onto these different dimensions, the system preserves information without requiring additional data fields, thus avoiding increased computational complexity and message duration
2Loss of information
If additional data is added to received messages to preserve physical property information, then information loss is prevented, but message duration increases
Solution Approach 1:
The patent modifies the message's physical parameters (frequency, power, or time) to encode the physical property information directly in the message itself. This approach preserves the original message duration because no additional data fields are added - the information is embedded in the existing message structure through parameter modification
Solution Approach 2:
The patent encodes physical property information in alternative dimensions of the message (frequency, power, or time) rather than adding data fields. This maintains the original message duration because the information is carried within the existing message framework, not as separate additions that would extend the message length
3Power
If the repeater device retransmits messages with amplified power, then signal strength is improved, but information on received power is lost
Solution Approach 1:
The repeater device performs preliminary encoding of the received power information into the message's power parameter before retransmission. By pre-encoding this information in the message itself, the system ensures that the power information is preserved even as the message is amplified during retransmission, eliminating the need for separate power measurement and data addition
Solution Approach 2:
The patent uses the message's power parameter to encode the received power information. The repeater modifies the message power to represent the original received power level, thereby preserving this information while still enabling signal amplification for retransmission. This resolves the contradiction by making the power parameter serve dual purposes
4Adaptability or versatility
If the repeater device changes frequency for retransmission, then frequency allocation flexibility is improved, but information on receiving frequency is lost
Solution Approach 1:
The repeater device performs preliminary encoding of the receiving frequency information into the message's frequency parameter before retransmission on a different frequency. This pre-encoding ensures that the original frequency information is preserved in the message itself, allowing the new frequency allocation to coexist with the preservation of the original frequency data
Solution Approach 2:
The patent uses the frequency dimension of the message to encode the receiving frequency information. Even though the message is retransmitted on a different frequency for allocation flexibility, the original frequency information is preserved by mapping it onto the frequency parameter, effectively using frequency to carry frequency information
Data Source
AI summary
A method for achieving wireless communication between a transmitter and a receiver via a repeater device. The value of a first physical property of a message received from the transmitter is measured by the repeater device. The value of a second physical property to be used for the retransmission of the message is determined by the repeater device depending on the value of the first physical property measured for the received message. The message is retransmitted to the receiver by the repeater device using the determined value of the second physical property.