Simultaneous Multicast Data Transmission in Relay Communication Systems
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Solution Overview
Problem
Current multi-hop communication systems face inefficiencies in data transmission and reception procedures, particularly when the same data needs to be transmitted to multiple mobile stations, as existing methods do not effectively utilize resources to ensure reliable and high-capacity data delivery.
Innovation Solution
A method and system where a base station and a relay station simultaneously multicast the same data to multiple mobile stations using a shared resource, optimizing data transmission by identifying mobile station groups and coordinating data transfer between them.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the base station transmits data to multiple mobile stations through a relay station in a multi-hop communication system, then service coverage is extended and system capacity is increased, but resource usage becomes inefficient and data transmission procedures become complex
Solution Approach 1:
The patent merges the data transmission operations of the base station and relay station by enabling simultaneous multicast of the same data to multiple mobile stations. This combining of transmission resources allows both stations to transmit identical data packets at the same time to different mobile stations, improving resource utilization efficiency while extending service coverage in the multi-hop communication system
Solution Approach 2:
The patent implements multi-functionality by enabling the base station and relay station to perform dual roles: they can independently transmit data to mobile stations directly in their coverage areas, and simultaneously act as relay nodes for each other. This universal transmission capability allows the same transmission resource to serve multiple purposes and multiple mobile stations, improving overall resource efficiency
2Reliability
If the base station and relay station transmit data to multiple mobile stations using separate resources, then data delivery reliability is maintained, but resource usage efficiency decreases
Solution Approach 1:
The patent combines the data transmission resources of the base station and relay station by enabling simultaneous multicast of the same data. Instead of using separate resources for each transmission, both stations transmit identical data packets at the same time to different mobile stations, merging resource usage while maintaining delivery reliability through redundant transmission paths
Solution Approach 2:
The patent applies partial action by having the base station and relay station transmit only the necessary portion of data simultaneously rather than completing full separate transmission cycles. By transmitting the same data packet at the same time to different mobile stations, the system achieves excessive coverage (more stations receive data simultaneously) while improving overall transmission efficiency
Data Source
AI summary
Disclosed is a method and system for transmitting and receiving data in a communication system. The system includes a base station, and a relay station connecting the base station with at least one mobile station. The base station transmits data for a plurality of mobile stations to the relay station, and transmits the data to at least one mobile station belonging to the base station from among the plurality of mobile stations. The relay station receives the data from the base station, and transmits the data to at least one mobile station belonging to the relay station from among the plurality of mobile stations in the same interval as an interval where the base station transmits the data to the mobile station.