General Page Message Duplication for Paging Reliability
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Solution Overview
Problem
In cellular wireless communication systems, the paging channel can become congested when a base station has numerous pages to send, leading to delayed call setup or pages not reaching intended mobile stations due to unused space in general page messages (GPMs).
Innovation Solution
The system detects unused space in GPMs and includes multiple instances of selected page records to increase the probability of successful delivery, using factors like random selection, attempt counts, page types, service tiers, RF conditions, and hybrid mobile station capabilities to prioritize page records for duplication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the paging channel transmits multiple page records in a general page message to reduce congestion, then the bandwidth utilization is improved, but the reliability of page delivery deteriorates because pages may not reach intended mobile stations
Solution Approach 1:
The patent applies duplication by including multiple instances of the same page record in the general page message. When a base station determines that fewer than the maximum number of page records are scheduled, it selects at least one page record to include in duplicate, thereby increasing the probability that the mobile station receives the page successfully without wasting bandwidth on unused entries
2Reliability
If the base station includes duplicate page records in the GPM to increase delivery probability, then the reliability of page delivery is improved, but the device complexity increases due to selection criteria and duplication logic
Solution Approach 1:
The patent applies parameter changes by using multiple selection criteria (page record attempt count, page type, service tier, RF conditions, mobile station hybrid capability) to dynamically determine which page records should be duplicated. The base station adjusts the duplication strategy based on changing network conditions and page characteristics, optimizing reliability without requiring complex fixed rules
3Reliability
If the system uses multiple selection factors to prioritize page records for duplication, then the reliability of successful delivery is improved, but the measurement precision requirements increase to accurately assess RF conditions, service tiers, and other parameters
Solution Approach 1:
The patent applies self-service by having the base station utilize existing measurement data and network information that are already being collected for other purposes. The base station leverages available RF condition reports, mobile station capability information, and scheduling data to make duplication decisions without requiring additional specialized measurements, thereby improving reliability while avoiding increased measurement precision requirements
Data Source
AI summary
Disclosed herein are methods and systems that may take advantage of unused space in general page messages (GPMs) by including multiple instances of a given page in the same GPM, in an effort to improve the chances that the intended mobile station receives the page. An exemplary paging method involves: (a) before a transmission of a general page message (GPM) that is formatted to include up to a maximum number of page records, making a determination that less than the maximum number of page records are scheduled to be included in the GPM; (b) in response to the determination, selecting, from the page records that are scheduled to be included in the GPM, at least one page record for which to include two or more instances in the GPM; and (c) transmitting the GPM, wherein two or more instances of the at least one selected page record are included in the transmission of the GPM.