Pulsed Wireless Timing for Single-Antenna Full Duplex
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The placement of multiple antennas on mobile platforms such as cars, aircraft, and military ships is challenging due to space constraints and interference issues, limiting communication capabilities and increasing costs and risks.
Innovation Solution
A method for timing a full duplex pulsed wireless communication system is implemented, where the pulse period of both transceivers is set to be twice the propagation time divided by an integer, minimizing the risk of pulse collisions and enabling efficient data transmission and reception using radar systems for multiple purposes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple antennas are deployed to enable full duplex communication, then communication capability is improved, but device complexity and space requirements increase
Solution Approach 1:
The patent applies periodic pulsed transmission with carefully controlled pulse periods. Each transceiver transmits periodic pulses with a pulse period T that satisfies T > 2*propagation_delay, ensuring that transmitted pulses do not collide with received pulses. This periodic timing scheme enables full duplex communication using a single antenna, resolving the contradiction between communication capability and device complexity.
Solution Approach 2:
The patent makes a single antenna perform multiple functions by implementing full duplex communication capability. The same antenna is used for both transmitting and receiving signals simultaneously, eliminating the need for separate transmit and receive antennas. This multi-functionality approach maintains communication capability while reducing device complexity.
2Adaptability or versatility
If multiple antennas are placed on mobile platforms, then communication coverage is improved, but placement difficulty and interference increase
Solution Approach 1:
The patent enables a single antenna to provide full duplex communication coverage by implementing asymmetric time-division duplexing. The antenna serves both transmit and receive functions, eliminating the need for multiple antennas on space-constrained mobile platforms like aircraft and ships, thereby resolving the placement difficulty while maintaining communication coverage.
Solution Approach 2:
The patent implements dynamic pulse period adjustment based on propagation delay conditions. The pulse period T is dynamically set to satisfy T > 2*propagation_delay, allowing the system to adapt to changing communication conditions. This dynamic timing scheme enables single-antenna full duplex operation without requiring multiple fixed-position antennas.
3Productivity
If pulse period is reduced to increase data rate, then productivity is improved, but pulse collision risk increases
Solution Approach 1:
The patent implements periodic pulsed transmission with asymmetric time-division duplexing. By setting different pulse periods for transmit and receive operations and ensuring T > 2*propagation_delay, the system achieves high data rates through efficient pulse utilization while completely avoiding pulse collisions. The periodic timing scheme maximizes productivity without compromising reliability.
Data Source
AI summary
A method for timing a full duplex pulsed wireless communication system between first and second transceivers is disclosed. At least one of the transceivers is mobile. A propagation time between the first and second transceivers is calculated. A pulse period of the first transceiver is set to be twice the propagation time divided by an integer. The second transceiver's pulse period is set to be equal to the pulse period of the first transceiver to enable the first and second transceivers to transmit and receive pulses with a substantially reduced risk of a collision between pulses transmitted from the first and second transceivers.