Relay Station Network Coding Time Slot Reduction
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Solution Overview
Problem
The addition of a relay station in communication systems increases the consumption of wireless resources, such as time slots, leading to inefficiencies in data transmission, especially in high-frequency band scenarios where shadow areas are prevalent, and existing technologies have not effectively maximized data rates while minimizing resource usage.
Innovation Solution
Implementing a relay station that generates and transmits network-coded messages using a network coding scheme, allowing the base station and mobile station to receive and extract messages within the same time slot, thereby reducing the number of time slots required for data exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a relay station is added to a communication system to improve data rate and coverage, then the data rate is improved, but the consumption of wireless resources such as time slots increases
Solution Approach 1:
The relay station combines multiple messages (downlink message from base station and uplink message from mobile station) into a single network coded message transmission. By merging these messages and transmitting them simultaneously in one time slot, the system reduces the total number of time slots needed from four to three, thereby improving resource utilization while maintaining improved data rate performance
Solution Approach 2:
The relay station performs multiple functions within a single time slot: receiving the downlink message, receiving the uplink message, generating the network coded message, and transmitting it to both base station and mobile station. This multi-functionality allows the relay station to operate more efficiently and reduces the overall time slot consumption for message exchange
Data Source
AI summary
A communication system, a relay station, a mobile station, a base station, and a method using a network coding scheme are provided. A communication system includes a relay station, a mobile station, and a base station. A relay station includes a message receiving unit to receive a downlink message transmitted from a base station and an uplink message transmitted from a mobile station, a message generation unit to generate a network coded message by coding the downlink message and the uplink message according to a network coding scheme, and a message transmission unit to transmit the network coded message to the base station and the mobile station during the same time slot.