Wireless Access Node Dynamic Neighbor List PN Code Addition
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wireless communication devices often experience handoffs to different networks when their serving access node becomes overloaded, leading to potential protocol changes during handoffs, which can result in unreliable connections and reduced throughput.
Innovation Solution
A method where a wireless access node dynamically adds different channel pseudo-noise (PN) codes of different carriers to a neighbor list for a wireless communication device, comparing pilot signal strength and communication loading thresholds to determine when to add a new PN code, allowing the device to hand off to a different carrier frequency within the same protocol, thereby maintaining connection reliability and improving throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the wireless access node serves a large number of wireless communication devices, then the network capacity and service coverage are improved, but the communication loading on the current carrier frequency increases, forcing devices to hand off to different networks when overloaded
Solution Approach 1:
The patent extends the handoff option from a single carrier frequency to multiple carrier frequencies by adding different channel PN codes of different carriers to the neighbor list. This dimensional expansion allows devices to hand off to alternative carriers within the same network when the current carrier becomes overloaded, maintaining connection reliability while preserving network capacity utilization.
Solution Approach 2:
The patent dynamically changes the neighbor list parameters by adding PN codes from different channels and carriers based on communication loading conditions. When loading exceeds a threshold, the system modifies the neighbor list to include alternative carrier options, enabling devices to switch carriers and distribute load across multiple frequencies, thus resolving the contradiction between network capacity and connection reliability.
2Productivity
If the wireless communication device hands off to a different wireless access network when overloaded, then the immediate network congestion is relieved, but protocol changes during handoff occur, reducing throughput and connection reliability
Solution Approach 1:
The patent makes the wireless access node multi-functional by enabling it to provide services on multiple carrier frequencies simultaneously. By adding different channel PN codes of different carriers to the neighbor list, the node offers universal service across multiple carriers, allowing devices to hand off within the same network infrastructure without protocol changes, thereby maintaining both throughput and connection reliability.
3Ease of operation
If the neighbor list includes only pilots from the active set, candidate set, neighbor set, and remaining set, then the handoff search process is simplified, but devices cannot discover alternative carrier frequencies within the same network, forcing handoffs to different networks
Solution Approach 1:
The patent performs preliminary action by proactively adding different channel PN codes of alternative carriers to the neighbor list before devices need to hand off. This advance preparation ensures that when devices experience loading issues, alternative carrier options are already available in their neighbor lists, eliminating the need for complex searches and enabling seamless intra-network handoffs without compromising search simplicity.
Data Source
AI summary
A wireless access node to add different channel pseudo-noise (PN) codes of different carriers to a neighbor list for a wireless communication device communicating over a first carrier frequency provided by the wireless access node comprises a processing system. The processing system is configured to start a loading timer if first communication loading on a second carrier frequency of the wireless access node falls below a first loading threshold, and during the loading timer, compare second communication loading on hand down carriers of a highest priority neighbor to a second loading threshold, and if the second communication loading on at least one of the hand down carriers of the highest priority neighbor falls below the second loading threshold during the loading timer, then add a different channel PN code of the second carrier frequency of the wireless access node to the neighbor list for the wireless communication device.