Optimization Servers and Agile Beamforming for LTE Latency
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Solution Overview
Problem
Current broadband wireless networks face challenges in meeting user demands for bandwidth, particularly due to inter-cell interference, backhaul utilization, and latency issues, which affect the quality of service and capacity, especially in providing video services and handling sensor data efficiently during emergencies.
Innovation Solution
The implementation of a centralized optimization server and local optimization servers within the LTE wireless network to reduce communication latency, increase bandwidth, and manage data packet flow efficiently, along with the use of Agile Beam Forming to minimize inter-cell interference and deploy ad-hoc networks for emergency situations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If servers are deployed externally to the wireless network, then service coverage area is expanded, but communication latency increases
Solution Approach 1:
The patent segments the server deployment architecture by placing optimization servers at multiple strategic locations within the wireless network infrastructure (at the PGW, at eNBs, and at optimization server farms) rather than using a single external server location. This segmentation allows services to be delivered from the nearest available server to each user equipment, expanding effective coverage while minimizing communication latency through localized service delivery.
2Device complexity
If data packets flow through centralized servers, then service management is simplified, but communication latency increases
Solution Approach 1:
The patent implements local quality by deploying optimization servers at multiple hierarchical levels (centralized PGW level, distributed eNB level, and regional server farm level) with different functions optimized for their specific locations. Centralized servers handle policy management and coordination, while distributed servers handle local packet routing and service delivery, achieving both simplified management and reduced latency through location-appropriate server functions.
3Speed
If beamforming is used to improve signal quality, then data rate increases, but inter-cell interference increases
Solution Approach 1:
The patent implements periodic action through time-division multiplexing of beam patterns, where different cells transmit using different beam patterns in different time subframes. This periodic alternation of beam patterns across cells allows each cell to achieve high data rates through focused beamforming while the temporal separation prevents continuous inter-cell interference, as neighboring cells transmit on different beams at different times.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances bandwidth utilization, reduces latency, improves quality of service, and enables efficient data processing and distribution, particularly during emergencies, by optimizing data flow and beamforming techniques within the LTE network.
Implementation Method 1
A unique beam forming technique may be used to improve spectrum efficiency and spectrum usage
Data Source
AI summary
In embodiments of the present disclosure improved capabilities are described for increasing the bandwidth in a network, where centralized optimization servers are utilized to reduce the time-latency for applications being run from a user device. Further, by associating additional local optimization servers, application functionality may be optionally transferred from the centralized optimization server to the local optimization server in instances where a number of user devices are requesting the same data via their access through the same access node, and in other instances, to the effect that associated communication network bandwidth utilization is reduced or eliminated.