Dual Mobile Station Identifier for Wireless Ranging
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Solution Overview
Problem
In wireless communication networks, particularly in IEEE 802.16m systems, there is a need to efficiently manage mobile station identifiers during ranging operations to ensure seamless network entry and communication, while minimizing overhead and maintaining performance.
Innovation Solution
The method involves using a first mobile station identifier during the ranging operation and a second identifier for subsequent communications, allowing for the extraction of message contents based on these identifiers, and implementing this in both mobile stations and base stations to facilitate smooth network interactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single mobile station identifier is used throughout the ranging operation and subsequent communication, then device complexity is reduced, but overhead increases and message extraction efficiency deteriorates
Solution Approach 1:
The patent segments the identifier usage into two distinct phases: a first mobile station identifier (MS-ID) is used during the ranging operation phase, and a second mobile station identifier is used during the subsequent communication phase. This segmentation allows the system to optimize identifier extraction for each specific phase, improving overall message extraction efficiency while maintaining manageable complexity through clear phase-based identifier assignment.
2Loss of energy
If overhead is reduced by using fewer identifiers, then network efficiency improves, but the ability to support advanced services deteriorates
Solution Approach 1:
The patent implements a dynamic identifier assignment mechanism where the mobile station transitions from using a first identifier during ranging operations to a second identifier for subsequent communications. This dynamic approach allows the system to maintain low overhead during the initial ranging phase while enabling advanced services during the established communication phase, effectively balancing overhead reduction with service capability support.
Data Source
AI summary
A method for execution by a mobile station (MS) in a mobile communications network, the method comprising: receiving a first MS identifier from the network during a ranging operation involving the MS; using the first MS identifier to extract the contents of at least one message received from the network during said ranging operation; using a second MS identifier, different from the first MS identifier, to extract the contents of at least one message received from the network after said ranging operation is complete. Also, a method for execution by the base station, comprising: outputting a first message destined for the MS, the first message including a first identifier for use by the MS during a ranging operation; determining that said ranging operation is complete; outputting a second message destined for the MS, the second message including a second identifier for use by the MS in subsequent communication with the network.