Wireless Repeater Packet Selection for Redundant Signal Elimination
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Solution Overview
Problem
In wireless communication systems with multiple repeaters, redundant signal transmission occurs when repeaters have the same channel frequency, leading to abnormal voice output and inefficiencies, such as increased traffic and longer relay times due to signal collisions.
Innovation Solution
A repeater system that includes a packet reception unit, a transmission unit, a packet storing unit, and a packet selection unit to compare and discard redundant packets based on predetermined conditions, ensuring non-redundant signal transmission to the recipient wireless communication device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple repeaters with the same channel frequency are used to extend coverage, then the coverage area increases, but redundant signal transmission occurs leading to abnormal voice output and communication inefficiency
Solution Approach 1:
The system segments the signal processing function by introducing a packet selection unit that divides incoming packets into redundant and non-redundant categories. This segmentation allows the system to handle multiple repeater signals without combining them incorrectly, thus maintaining voice output quality while extending coverage area.
Solution Approach 2:
The packet selection unit acts as an intermediary between the multiple repeaters and the recipient wireless communication device. It receives packets from multiple sources, compares them, and selects only non-redundant packets for transmission, preventing the abnormal voice output that would occur without such mediation.
2Reliability
If multiple repeaters transmit signals simultaneously to avoid signal collision, then communication reliability improves, but relay time increases due to sequential transmission requirements
Solution Approach 1:
The system performs preliminary comparison of received packets with previously stored packets before transmission. By checking for redundancy in advance using packet identifiers and comparison circuits, the system determines which packets can be transmitted immediately and which should be discarded, thus maintaining reliability while minimizing relay time.
Solution Approach 2:
The system changes the parameter of packet transmission by selectively filtering out redundant packets based on their identifiers. This parameter change from transmitting all received packets to transmitting only non-redundant packets reduces the total transmission time while maintaining communication reliability.
3Reliability
If all received packets are transmitted to ensure complete signal delivery, then signal completeness improves, but traffic load increases due to redundant transmissions
Solution Approach 1:
The system discards redundant packets by comparing packet identifiers with previously received and transmitted packets. The packet selection unit identifies and discards duplicate packets while retaining and transmitting only non-redundant packets, thus reducing traffic load while ensuring complete signal delivery of unique information.
Solution Approach 2:
The system creates a copy of packet identifiers in a storage unit to compare against incoming packets. This copying mechanism allows efficient identification of redundant packets without retransmitting them, reducing traffic load while maintaining signal completeness through intelligent selection.
Data Source
AI summary
The present invention provides a repeater, a wireless communication system, a control method and a recording medium that can transmit the same signal received by plural repeaters to the recipient wireless communication device without redundancy of the signal. A repeater connected to a network and relaying a communication of a wireless communication device comprises a packet reception unit receiving a packet transmitted from a sender wireless communication device to a recipient wireless communication device from the network or the sender wireless communication device, a transmission unit transmitting the packet received by the packet reception unit to the recipient wireless communication device, a packet storing unit storing the packet to be transmitted to the recipient wireless communication device as a first packet, and a packet selection unit comparing the first packet with a second packet other than the first packet, and discarding the second packet when both packets match under a predetermined condition.