Call Management Device Steering Mobile Units in HFC Networks
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Solution Overview
Problem
Existing service networks face challenges in managing voice calls effectively due to delays and quality issues, particularly in hybrid fiber-coax (HFC) networks, where RF noise causes latency and jitter, impacting real-time services like voice calls and gaming.
Innovation Solution
A call management device that determines network topology and uses handoff parameters, combining DOCSIS and wireless network information to proactively steer mobile units to better network connections, employing techniques like network-controlled handoffs and fine-grained fault location detection to improve call quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If network topology determination and handoff parameter calculation are implemented to improve call quality, then transmission quality is improved, but device complexity increases
Solution Approach 1:
The system performs preliminary determination of network topology and calculates handoff parameters in advance before calls are affected by network issues. The call management device proactively identifies optimal network devices and prepares handoff parameters based on current network conditions, enabling preventive call quality management rather than reactive correction.
Solution Approach 2:
The call management device serves as an intermediary between the network infrastructure and user devices. It receives network topology information from the service network and wireless network information from access points, processes this information to determine handoff parameters, and then guides user devices to connect to optimal network devices, thereby improving call quality without requiring complex changes to end-user devices.
2Reliability
If proactive call management is implemented to avoid delays, then call transmission quality is improved, but loss of time in network analysis increases
Solution Approach 1:
The system continuously determines network topology and monitors network conditions in advance, maintaining updated information about network device status and performance. This preliminary monitoring allows the system to quickly make handoff decisions when needed, rather than performing extensive analysis during active calls.
Solution Approach 2:
The call management device continuously receives feedback from the network regarding topology changes, device status, and performance metrics. This ongoing feedback mechanism allows the system to maintain current knowledge of network conditions without requiring repeated full-scale analysis, enabling rapid response to changing conditions while minimizing analysis time.
3Reliability
If handoff parameters are calculated using combined network information to improve transmission quality, then call reliability is improved, but device complexity increases
Solution Approach 1:
The call management device performs multiple functions: it determines network topology, collects wireless network information from access points, calculates handoff parameters, and guides user device connections. By consolidating these diverse functions into a single multi-functional device, the system improves call reliability without requiring each individual component to be overly complex.
Solution Approach 2:
The call management device acts as an intermediary that simplifies the complexity for end-user devices. Instead of requiring user devices to perform complex network analysis and handoff decisions, the call management device processes all network information and provides simplified guidance to user devices, thereby improving call reliability while keeping user device complexity low.
Data Source
AI summary
Systems and methods are described for call management. Network information associated with a first service may be used for a wireless communication session associated with a second service. The wireless communication session may be caused, based on the network information, to be facilitated by a second network device instead of a first network device.