Wireless Repeater Bandwidth Scheduling for Interference Control
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Solution Overview
Problem
Conventional wireless networks face challenges in managing interference, particularly with RF repeaters that increase network coverage but lack smart control mechanisms, leading to inefficient use of spectrum resources and increased interference levels.
Innovation Solution
A communication system that includes a wireless base station and repeater wireless stations, which receive schedule information to selectively retransmit wireless communications, controlling the direction and amount of signal transmission to manage interference by assigning specific timeslots and bandwidth, thereby reducing overall interference levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If RF repeaters are deployed to increase network coverage, then network coverage is improved, but interference levels increase and spectrum resources are used inefficiently
Solution Approach 1:
The patent segments the bandwidth into multiple subbands and divides the repeater operations into different timeslots. The base station assigns specific subbands to be repeated during specific timeslots, preventing all repeaters from transmitting simultaneously across the full bandwidth. This segmentation reduces interference while maintaining coverage extension.
Solution Approach 2:
The patent implements dynamic control where the base station receives repeater status information and dynamically adjusts the bandwidth allocation and timeslot assignment for each repeater. The schedule information is updated based on current network conditions, allowing the system to adaptively manage interference and spectrum usage.
2Area of stationary object
If repeaters retransmit all received signals to maximize coverage, then network coverage is improved, but spectrum resources are used inefficiently
Solution Approach 1:
The patent applies local quality by assigning different subbands to different repeaters based on their specific coverage areas and interference conditions. Each repeater repeats only the subbands relevant to its location and user equipment, rather than all bandwidth, optimizing spectrum usage for each local area.
Solution Approach 2:
The patent implements partial action by having repeaters repeat only a portion of the total bandwidth (specific subbands) rather than the entire spectrum. This partial repetition is sufficient to provide coverage extension while avoiding the excessive spectrum consumption that would result from full-bandwidth repetition by all repeaters.
3Device complexity
If repeaters operate without smart control mechanisms, then device complexity is reduced, but interference management becomes inefficient
Solution Approach 1:
The patent introduces the base station as an intermediary that manages repeater operations. The base station receives repeater status information, determines the optimal bandwidth and timeslots for repetition, and sends schedule information to repeaters. This centralized control approach maintains simple repeater devices while achieving efficient interference management through the base station's coordination.
Data Source
AI summary
A network environment includes a wireless base station and a repeater wireless station. The repeater wireless station receives first wireless communications and second wireless communications transmitted from a wireless base station. The repeater wireless station also receives schedule information notifying the repeater wireless station to retransmit at least the first wireless communications. In accordance with the schedule information, the repeater wireless station controls retransmission of the first wireless communications and the second wireless communications.