Coordinated Multi-Point Transmission via Distributed Reuse Patterns
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Solution Overview
Problem
In wireless communications, CoMP transmissions often cause unintended interference among nearby devices, leading to self-defeating scenarios where the intended reliability of these transmissions is compromised due to interference from multiple CoMP operations.
Innovation Solution
The implementation of reuse-pattern based CoMP via distributed message exchange, where base stations receive and transmit channel measurement information and zone information to identify network reuse patterns, allowing for coordinated CoMP transmissions that reduce interference through time shifting or time division of transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If CoMP transmissions are performed to increase reliability, then transmission reliability is improved, but interference among multiple CoMP transmissions increases causing self-defeating scenarios
Solution Approach 1:
The patent implements time-division based CoMP transmissions where different base stations perform CoMP transmissions in different time periods or frames. This periodic scheduling allows the system to maintain multiple CoMP transmissions while avoiding simultaneous interference, thus preserving transmission reliability without generating harmful interference among CoMP operations
Solution Approach 2:
The system dynamically determines whether to perform CoMP transmissions based on real-time channel conditions and interference levels. By adaptively enabling or disabling CoMP transmissions and adjusting transmission parameters according to current network state, the system can achieve high reliability when conditions permit while avoiding interference-prone scenarios
2Productivity
If multiple base stations perform CoMP transmissions simultaneously, then network throughput is improved, but interference among transmissions increases reducing overall effectiveness
Solution Approach 1:
The patent employs time-division multiplexing where different base stations are assigned different time periods or frames for CoMP transmissions. This periodic scheduling structure enables the network to achieve high overall throughput by utilizing multiple base stations while preventing simultaneous transmissions that would cause harmful interference
Solution Approach 2:
The patent segments the transmission resources by dividing time into different periods or frames, assigning different base stations to different segments. This segmentation allows multiple base stations to contribute to network throughput while ensuring that transmissions in each segment do not interfere with each other
Data Source
AI summary
Methods, systems, and devices for wireless communications are described, including receiving, at a first base station, channel measurement information from a first user equipment (UE); identifying a zone associated with the first base station based at least in part on the received channel measurement information; receiving, from a second base station, zone information associated with one or more UEs that transmitted channel measurement information to the second base station; identifying a network reuse pattern for coordinated multi-point (CoMP) communication based at least in part on the identified zone and the received zone information; and transmitting a multi-point transmission to a second UE based at least in part on the identified network reuse pattern.