Simultaneous Multicast and Unicast Signal Transmission via Spatial Antenna Segmentation
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in transmitting both multicast and unicast signals simultaneously due to interference issues, which limits the utilization of network capacity and transmission efficiency.
Innovation Solution
The method involves transmitting multicast signals to one set of communication devices via one antenna and unicast signals to another device via a separate antenna within the same time interval, while employing multiple-input multiple-output (MIMO) techniques and interference reduction methods to minimize interference between the signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multicast signal and unicast signal are transmitted simultaneously using the same antenna, then transmission efficiency is improved, but signal interference increases
Solution Approach 1:
The patent segments the transmission function by separating multicast and unicast signal transmission onto different antennas. The base station uses a first antenna for multicast signals and a second antenna for unicast signals, dividing the transmission task to avoid interference while maintaining overall transmission efficiency.
Solution Approach 2:
The patent introduces a spatial dimension solution by using multiple antennas (spatial separation) to transmit different signal types simultaneously. Instead of time-division or frequency-division multiplexing, the solution moves to spatial domain separation, allowing concurrent transmission without interference.
2Reliability
If multiple antennas are used for multicast signal transmission, then reception quality is improved, but network capacity utilization decreases
Solution Approach 1:
The patent segments the antenna resources by dedicating specific antennas to multicast functions and other antennas to unicast functions. This segmentation allows the system to maintain high reception quality for multicast signals using multiple antennas while simultaneously utilizing remaining antenna capacity for unicast transmissions.
Solution Approach 2:
The patent makes the antenna system multi-functional by enabling different antennas to serve different purposes: some antennas are configured for multicast signal transmission while others handle unicast signals. This multi-functionality increases overall network capacity utilization while maintaining specialized optimization for each signal type.
3Reliability
If dedicated radio resources are allocated for multicast signals, then service quality is guaranteed, but transmission efficiency is reduced
Solution Approach 1:
The patent segments radio resources by allocating specific time-frequency resources for multicast signals on the first antenna while making other resources available for unicast transmissions on the second antenna. This segmentation guarantees service quality for multicast while improving overall transmission efficiency through parallel unicast communications.
Solution Approach 2:
The patent maintains continuous useful action by enabling simultaneous multicast and unicast transmissions. While multicast signals receive dedicated resources for quality assurance, the system continuously utilizes remaining resources for unicast transmissions, ensuring no resource remains idle and overall transmission efficiency is maximized.
Data Source
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AI summary
A method of transmitting a multicast signal and a unicast signal simultaneously for a network of a wireless communication system comprises transmitting the multicast signal to at least one first communication device in the wireless communication system during a time interval via at least one first antenna of the network; transmitting the unicast signal to another communication device in the wireless communication system during the time interval via at least one second antenna of the network; and reducing interference caused by at least one of the multicast signal and the unicast signal, when transmitting the multicast signal and the unicast signal.