Wireless Device RF Measurement Filtering for Approved Nodes
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Solution Overview
Problem
Wireless network operators face capacity constraints in densely populated areas, leading to dropped calls and unreliable data sessions, often addressed by throttling data usage or limiting voice minutes, and quality of service (QoS) differentiation among subscribers.
Innovation Solution
A method for a wireless communication device to receive a list of approved wireless access nodes based on its QoS level, filter out unauthorized nodes, perform RF measurements on the approved subset, and report these measurements to optimize attachment to a serving node, thereby conserving resources and improving efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the wireless communication device performs RF measurements on all neighboring wireless access nodes, then the measurement coverage is complete, but the device complexity and processing time increase
Solution Approach 1:
The patent applies preliminary action by obtaining the approved wireless access node list before performing RF measurements. The device pre-filters neighboring nodes by comparing them against the approved list, so only measurements on authorized nodes are executed. This eliminates the need to process all neighboring nodes, reducing measurement coverage from exhaustive to targeted while maintaining effectiveness for approved nodes only.
2Loss of information
If the wireless communication device reports measurements for all neighboring nodes, then the network has complete information for handoff decisions, but the loss of time and energy increases
Solution Approach 1:
The patent applies the extraction principle by removing unauthorized wireless access nodes from the measurement reporting process. The device extracts only the approved nodes from the complete neighboring node list, filters out the rest, and reports measurements exclusively for the approved subset. This reduces the information volume to be transmitted while ensuring all necessary information for legitimate handoffs is included.
3Reliability
If the wireless communication device measures all neighboring access nodes, then no approved node is missed, but the use of energy increases
Solution Approach 1:
The patent applies local quality by differentiating between approved and unapproved wireless access nodes. Instead of uniformly measuring all neighboring nodes, the device applies measurement actions only to the specific subset of approved nodes identified from the list. This localized approach ensures reliable measurement of authorized nodes while eliminating wasted energy on unauthorized nodes.
Data Source
AI summary
A wireless communication device to facilitate attachment to a serving wireless access node, the wireless communication device comprises a wireless communication transceiver and a processing system. The wireless communication transceiver is configured to receive a list identifying approved wireless access nodes based on a quality of service level associated with the wireless communication device, and receive a request to report measurements of a plurality of neighboring wireless access nodes. The processing system is configured to process the list identifying the approved wireless access nodes with the plurality of neighboring wireless access nodes to determine a subset of the neighboring wireless access nodes included in the list of approved wireless access nodes, and perform radio frequency (RF) measurements on the subset of the neighboring wireless access nodes. The wireless communication transceiver is further configured to transmit a report of the RF measurements on the subset of the neighboring wireless access nodes.