Paging Identifier Partitioning for Wireless Overhead Reduction
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Solution Overview
Problem
Existing network control methods in wireless communication systems are inefficient, requiring excessive bandwidth, time, and power due to large overhead signaling in paging messages, especially in systems with a large number of stations.
Innovation Solution
The method involves assigning paging identifiers to stations, partitioning the paging identifier space into sets, and generating compressed paging messages that include explicit or implicit identifiers, allowing only relevant stations to decode and listen to specific messages, thereby reducing overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional paging messages are used to notify all stations, then all stations can receive notifications, but bandwidth and power consumption increase excessively
Solution Approach 1:
The patent divides the paging identifier space into multiple sets (first paging identifier set, second paging identifier set, etc.), each associated with different stations. The access point transmits separate paging messages for each set, allowing stations to only decode messages relevant to their assigned identifiers, thereby reducing overall bandwidth consumption and power usage while maintaining reliable notification delivery to all stations.
2Measurement precision
If paging messages include explicit identifiers for each station, then station identification is accurate, but message overhead increases
Solution Approach 1:
Instead of including all station identifiers in a single paging message, the patent segments identifiers into multiple sets and transmits separate compact paging messages for each set. This maintains accurate station identification through the association between paging identifier sets and specific stations, while significantly reducing message overhead compared to listing all stations individually.
Solution Approach 2:
The patent introduces a dimensional approach by organizing identifiers into sets and using message sequence numbers or timing information to implicitly identify which set is being paged. This allows the system to convey station identification information without explicitly listing all identifiers, reducing overhead while maintaining precision.
3Reliability
If the access point transmits paging messages to all stations, then all stations receive updates, but time consumption increases
Solution Approach 1:
The patent segments the station population into multiple groups based on their paging identifier sets and transmits targeted paging messages to each group simultaneously. This segmentation allows parallel processing of paging operations across different station groups, reducing the total time required compared to sequential updates, while ensuring all stations receive necessary updates.
Solution Approach 2:
The patent employs periodic paging mechanisms where the access point transmits paging messages at scheduled intervals or upon detecting specific conditions (such as data arrival). This periodic action allows efficient update delivery without requiring continuous transmission, reducing time consumption while maintaining reliable communication.
Data Source
AI summary
A method for reduced overhead paging by an access point is described. The method includes assigning at least one paging identifier to at least one station. The method also includes partitioning a paging identifier space into paging identifier sets. The method further includes generating a paging message based on at least one of the paging identifier sets and the at least one paging identifier. The method additionally includes sending the paging message.