Wireless Device Access Parameter Adjustment via Codec Detection
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Solution Overview
Problem
Wireless communication devices face challenges in establishing a successful connection to a radio access network due to varying network resource utilization, which affects codec assignment and subsequent access parameter settings, impacting communication quality and resource management.
Innovation Solution
A method where a wireless communication device determines the recently assigned codec to adjust access parameters, such as initial transmit power, probe power increase, and access probe cycle settings, based on the codec's quality to optimize connection establishment in areas likely to have high or low network resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the RAN transmits at a constant initial power level, then the forward link signal quality may be insufficient in high resource utilization areas, but increasing power consumes more energy and may not be effective in all scenarios
Solution Approach 1:
The patent applies dynamics by making the initial transmit power adjustable based on codec assignment. The WCD determines the codec assigned to it and dynamically adjusts its initial transmit power for reverse link transmissions accordingly. This resolves the contradiction by allowing power to be increased only when necessary (in high utilization areas with certain codec assignments) rather than constantly, thus improving connection success while managing energy consumption.
Solution Approach 2:
The patent changes the transmit power parameter based on codec assignment information. When the WCD is assigned a codec indicative of high network resource utilization, it increases its initial transmit power; when assigned a codec indicative of low utilization, it maintains or reduces power. This parameter adjustment strategy resolves the contradiction between reliable connection establishment and energy-efficient operation.
2Reliability
If access parameters are adjusted based on codec assignment, then connection success rate improves in high utilization areas, but the device complexity increases due to additional determination and adjustment logic
Solution Approach 1:
The patent uses feedback from the network's codec assignment to adjust access parameters. The WCD monitors which codec is assigned to it by the RAN and uses this feedback information to determine appropriate initial transmit power and other access parameters. This feedback mechanism resolves the contradiction by providing a simple, event-driven approach that improves connection success without requiring complex continuous monitoring or calculation mechanisms.
Solution Approach 2:
The WCD performs self-adjustment of its access parameters based on the codec assignment it receives. Rather than requiring complex network-controlled parameter management, the device autonomously determines the appropriate power level and access parameters based on the codec information already provided by the network. This self-service approach resolves the contradiction by simplifying the overall system while improving connection reliability.
Data Source
AI summary
Embodiments may involve the adjustment of access parameters for a wireless communication device (WCD), based on the codec that is currently associated with the WCD. An illustrative method involves a WCD: (a) determining a codec that is associated with the WCD in a given coverage area, (b) using the associated codec as a basis for determining a setting for each of one or more access parameters for an access process of the WCD, and (c) operating according to the determined settings for the one or more access parameters.